Initial import

author: Oswald Buddenhagen <oswald.buddenhagen@qt.io> 2017-10-06 11:52:00 +0000
committer: Oswald Buddenhagen <oswald.buddenhagen@qt.io> 2017-10-06 16:48:38 +0200
commit: 50b7967a78f8f7b1b45444577662ba20ed2643c8 (patch)
tree: 1486c059593a413b66218e23b6025faa2d8e5011
204 files changed, 155035 insertions, 0 deletions
diff --git a/8.31/132html b/8.31/132html
new file mode 100644
index 0000000..ccfbfd9
--- /dev/null
+++ b/8.31/132html
@@ -0,0 +1,313 @@
+#! /usr/bin/perl -w
+
+# Script to turn PCRE man pages into HTML
+
+
+# Subroutine to handle font changes and other escapes
+
+sub do_line {
+my($s) = $_[0];
+
+$s =~ s/</&#60;/g;                   # Deal with < and >
+$s =~ s/>/&#62;/g;
+$s =~ s"\\fI(.*?)\\f[RP]"<i>$1</i>"g;
+$s =~ s"\\fB(.*?)\\f[RP]"<b>$1</b>"g;
+$s =~ s"\\e"\\"g;
+$s =~ s/(?<=Copyright )\(c\)/&copy;/g;
+$s;
+}
+
+# Subroutine to ensure not in a paragraph
+
+sub end_para {
+if ($inpara)
+  {
+  print TEMP "</PRE>\n" if ($inpre);
+  print TEMP "</P>\n";
+  }
+$inpara = $inpre = 0;
+$wrotetext = 0;
+}
+
+# Subroutine to start a new paragraph
+
+sub new_para {
+&end_para();
+print TEMP "<P>\n";
+$inpara = 1;
+}
+
+
+# Main program
+
+$innf = 0;
+$inpara = 0;
+$inpre = 0;
+$wrotetext = 0;
+$toc = 0;
+$ref = 1;
+
+while ($#ARGV >= 0 && $ARGV[0] =~ /^-/)
+  {
+  $toc = 1 if $ARGV[0] eq "-toc";
+  shift;
+  }
+
+# Initial output to STDOUT
+
+print <<End ;
+<html>
+<head>
+<title>$ARGV[0] specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>$ARGV[0] man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+End
+
+print "<ul>\n" if ($toc);
+
+open(TEMP, ">/tmp/$$") || die "Can't open /tmp/$$ for output\n";
+
+while (<STDIN>)
+  {
+  # Handle lines beginning with a dot
+
+  if (/^\./)
+    {
+    # Some of the PCRE man pages used to contain instances of .br. However,
+    # they should have all been removed because they cause trouble in some
+    # (other) automated systems that translate man pages to HTML. Complain if
+    # we find .br or .in (another macro that is deprecated).
+
+    if (/^\.br/ || /^\.in/)
+      {
+      print STDERR "\n*** Deprecated macro encountered - rewrite needed\n";
+      print STDERR "*** $_\n";
+      die "*** Processing abandoned\n";
+      }
+
+    # Instead of .br, relevent "literal" sections are enclosed in .nf/.fi.
+
+    elsif (/^\.nf/)
+      {
+      $innf = 1;
+      }
+
+    elsif (/^\.fi/)
+      {
+      $innf = 0;
+      }
+
+    # Handling .sp is subtle. If it is inside a literal section, do nothing if
+    # the next line is a non literal text line; similarly, if not inside a
+    # literal section, do nothing if a literal follows. The point being that
+    # the <pre> and </pre> that delimit literal sections will do the spacing.
+    # Always skip if no previous output.
+
+    elsif (/^\.sp/)
+      {
+      if ($wrotetext)
+        {
+        $_ = <STDIN>;
+        if ($inpre)
+          {
+          print TEMP "\n" if (/^[\s.]/);
+          }
+        else
+          {
+          print TEMP "<br>\n<br>\n" if (!/^[\s.]/);
+          }
+        redo;    # Now process the lookahead line we just read
+        }
+      }
+    elsif (/^\.TP/ || /^\.PP/ || /^\.P/)
+      {
+      &new_para();
+      }
+    elsif (/^\.SH\s*("?)(.*)\1/)
+      {
+      # Ignore the NAME section
+      if ($2 =~ /^NAME\b/)
+        {
+        <STDIN>;
+        next;
+        }
+
+      &end_para();
+      my($title) = &do_line($2);
+      if ($toc)
+        {
+        printf("<li><a name=\"TOC%d\" href=\"#SEC%d\">$title</a>\n",
+          $ref, $ref);
+        printf TEMP ("<br><a name=\"SEC%d\" href=\"#TOC1\">$title</a><br>\n",
+          $ref, $ref);
+        $ref++;
+        }
+      else
+        {
+        print TEMP "<br><b>\n$title\n</b><br>\n";
+        }
+      }
+    elsif (/^\.SS\s*("?)(.*)\1/)
+      {
+      &end_para();
+      my($title) = &do_line($2);
+      print TEMP "<br><b>\n$title\n</b><br>\n";
+      }
+    elsif (/^\.B\s*(.*)/)
+      {
+      &new_para() if (!$inpara);
+      $_ = &do_line($1);
+      s/"(.*?)"/$1/g;
+      print TEMP "<b>$_</b>\n";
+      $wrotetext = 1;
+      }
+    elsif (/^\.I\s*(.*)/)
+      {
+      &new_para() if (!$inpara);
+      $_ = &do_line($1);
+      s/"(.*?)"/$1/g;
+      print TEMP "<i>$_</i>\n";
+      $wrotetext = 1;
+      }
+
+    # A comment that starts "HREF" takes the next line as a name that
+    # is turned into a hyperlink, using the text given, which might be
+    # in a special font. If it ends in () or (digits) or punctuation, they
+    # aren't part of the link.
+
+    elsif (/^\.\\"\s*HREF/)
+      {
+      $_=<STDIN>;
+      chomp;
+      $_ = &do_line($_);
+      $_ =~ s/\s+$//;
+      $_ =~ /^(?:<.>)?([^<(]+)(?:\(\))?(?:<\/.>)?(?:\(\d+\))?[.,;:]?$/;
+      print TEMP "<a href=\"$1.html\">$_</a>\n";
+      }
+
+    # A comment that starts "HTML" inserts literal HTML
+
+    elsif (/^\.\\"\s*HTML\s*(.*)/)
+      {
+      print TEMP $1;
+      }
+
+    # A comment that starts < inserts that HTML at the end of the
+    # *next* input line - so as not to get a newline between them.
+
+    elsif (/^\.\\"\s*(<.*>)/)
+      {
+      my($markup) = $1;
+      $_=<STDIN>;
+      chomp;
+      $_ = &do_line($_);
+      $_ =~ s/\s+$//;
+      print TEMP "$_$markup\n";
+      }
+
+    # A comment that starts JOIN joins the next two lines together, with one
+    # space between them. Then that line is processed. This is used in some
+    # displays where two lines are needed for the "man" version. JOINSH works
+    # the same, except that it assumes this is a shell command, so removes
+    # continuation backslashes.
+
+    elsif (/^\.\\"\s*JOIN(SH)?/)
+      {
+      my($one,$two);
+      $one = <STDIN>;
+      $two = <STDIN>;
+      $one =~ s/\s*\\e\s*$// if (defined($1));
+      chomp($one);
+      $two =~ s/^\s+//;
+      $_ = "$one $two";
+      redo;            # Process the joined lines
+      }
+
+    # .EX/.EE are used in the pcredemo page to bracket the entire program,
+    # which is unmodified except for turning backslash into "\e".
+
+    elsif (/^\.EX\s*$/)
+      {
+      print TEMP "<PRE>\n";
+      while (<STDIN>)
+        {
+        last if /^\.EE\s*$/;
+        s/\\e/\\/g;
+        s/&/&amp;/g;
+        s/</&lt;/g;
+        s/>/&gt;/g;
+        print TEMP;
+        }
+      }
+
+    # Ignore anything not recognized
+
+    next;
+    }
+
+  # Line does not begin with a dot. Replace blank lines with new paragraphs
+
+  if (/^\s*$/)
+    {
+    &end_para() if ($wrotetext);
+    next;
+    }
+
+  # Convert fonts changes and output an ordinary line. Ensure that indented
+  # lines are marked as literal.
+
+  $_ = &do_line($_);
+  &new_para() if (!$inpara);
+
+  if (/^\s/)
+    {
+    if (!$inpre)
+      {
+      print TEMP "<pre>\n";
+      $inpre = 1;
+      }
+    }
+  elsif ($inpre)
+    {
+    print TEMP "</pre>\n";
+    $inpre = 0;
+    }
+
+  # Add <br> to the end of a non-literal line if we are within .nf/.fi
+
+  $_ .= "<br>\n" if (!$inpre && $innf);
+
+  print TEMP;
+  $wrotetext = 1;
+  }
+
+# The TOC, if present, will have been written - terminate it
+
+print "</ul>\n" if ($toc);
+
+# Copy the remainder to the standard output
+
+close(TEMP);
+open(TEMP, "/tmp/$$") || die "Can't open /tmp/$$ for input\n";
+
+print while (<TEMP>);
+
+print <<End ;
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+End
+
+close(TEMP);
+unlink("/tmp/$$");
+
+# End
diff --git a/8.31/AUTHORS b/8.31/AUTHORS
new file mode 100644
index 0000000..ba4753d
--- /dev/null
+++ b/8.31/AUTHORS
@@ -0,0 +1,45 @@
+THE MAIN PCRE LIBRARY
+---------------------
+
+Written by:       Philip Hazel
+Email local part: ph10
+Email domain:     cam.ac.uk
+
+University of Cambridge Computing Service,
+Cambridge, England.
+
+Copyright (c) 1997-2012 University of Cambridge
+All rights reserved
+
+
+PCRE JUST-IN-TIME COMPILATION SUPPORT
+-------------------------------------
+
+Written by:       Zoltan Herczeg
+Email local part: hzmester
+Emain domain:     freemail.hu
+
+Copyright(c) 2010-2012 Zoltan Herczeg
+All rights reserved.
+
+
+STACK-LESS JUST-IN-TIME COMPILER
+--------------------------------
+
+Written by:       Zoltan Herczeg
+Email local part: hzmester
+Emain domain:     freemail.hu
+
+Copyright(c) 2009-2012 Zoltan Herczeg
+All rights reserved.
+
+
+THE C++ WRAPPER LIBRARY
+-----------------------
+
+Written by:       Google Inc.
+
+Copyright (c) 2007-2012 Google Inc
+All rights reserved
+
+####
diff --git a/8.31/COPYING b/8.31/COPYING
new file mode 100644
index 0000000..58eed01
--- /dev/null
+++ b/8.31/COPYING
@@ -0,0 +1,5 @@
+PCRE LICENCE
+
+Please see the file LICENCE in the PCRE distribution for licensing details.
+
+End
diff --git a/8.31/ChangeLog b/8.31/ChangeLog
new file mode 100644
index 0000000..fe85d67
--- /dev/null
+++ b/8.31/ChangeLog
@@ -0,0 +1,4817 @@
+ChangeLog for PCRE
+------------------
+
+Version 8.31 06-July-2012
+-------------------------
+
+1.  Fixing a wrong JIT test case and some compiler warnings.
+
+2.  Removed a bashism from the RunTest script.
+
+3.  Add a cast to pcre_exec.c to fix the warning "unary minus operator applied
+    to unsigned type, result still unsigned" that was given by an MS compiler
+    on encountering the code "-sizeof(xxx)".
+
+4.  Partial matching support is added to the JIT compiler.
+
+5.  Fixed several bugs concerned with partial matching of items that consist
+    of more than one character:
+
+    (a) /^(..)\1/ did not partially match "aba" because checking references was
+        done on an "all or nothing" basis. This also applied to repeated
+        references.
+
+    (b) \R did not give a hard partial match if \r was found at the end of the
+        subject.
+
+    (c) \X did not give a hard partial match after matching one or more
+        characters at the end of the subject.
+
+    (d) When newline was set to CRLF, a pattern such as /a$/ did not recognize
+        a partial match for the string "\r".
+
+    (e) When newline was set to CRLF, the metacharacter "." did not recognize
+        a partial match for a CR character at the end of the subject string.
+
+6.  If JIT is requested using /S++ or -s++ (instead of just /S+ or -s+) when
+    running pcretest, the text "(JIT)" added to the output whenever JIT is
+    actually used to run the match.
+
+7.  Individual JIT compile options can be set in pcretest by following -s+[+]
+    or /S+[+] with a digit between 1 and 7.
+
+8.  OP_NOT now supports any UTF character not just single-byte ones.
+
+9.  (*MARK) control verb is now supported by the JIT compiler.
+
+10. The command "./RunTest list" lists the available tests without actually
+    running any of them. (Because I keep forgetting what they all are.)
+
+11. Add PCRE_INFO_MAXLOOKBEHIND.
+
+12. Applied a (slightly modified) user-supplied patch that improves performance
+    when the heap is used for recursion (compiled with --disable-stack-for-
+    recursion). Instead of malloc and free for each heap frame each time a
+    logical recursion happens, frames are retained on a chain and re-used where
+    possible. This sometimes gives as much as 30% improvement.
+
+13. As documented, (*COMMIT) is now confined to within a recursive subpattern
+    call.
+
+14. As documented, (*COMMIT) is now confined to within a positive assertion.
+
+15. It is now possible to link pcretest with libedit as an alternative to
+    libreadline.
+
+16. (*COMMIT) control verb is now supported by the JIT compiler.
+
+17. The Unicode data tables have been updated to Unicode 6.1.0.
+
+18. Added --file-list option to pcregrep.
+
+19. Added binary file support to pcregrep, including the -a, --binary-files,
+    -I, and --text options.
+
+20. The madvise function is renamed for posix_madvise for QNX compatibility
+    reasons. Fixed by Giuseppe D'Angelo.
+
+21. Fixed a bug for backward assertions with REVERSE 0 in the JIT compiler.
+
+22. Changed the option for creating symbolic links for 16-bit man pages from
+    -s to -sf so that re-installing does not cause issues.
+
+23. Support PCRE_NO_START_OPTIMIZE in JIT as (*MARK) support requires it.
+
+24. Fixed a very old bug in pcretest that caused errors with restarted DFA
+    matches in certain environments (the workspace was not being correctly
+    retained). Also added to pcre_dfa_exec() a simple plausibility check on
+    some of the workspace data at the beginning of a restart.
+
+25. \s*\R was auto-possessifying the \s* when it should not, whereas \S*\R
+    was not doing so when it should - probably a typo introduced by SVN 528
+    (change 8.10/14).
+
+26. When PCRE_UCP was not set, \w+\x{c4} was incorrectly auto-possessifying the
+    \w+ when the character tables indicated that \x{c4} was a word character.
+    There were several related cases, all because the tests for doing a table
+    lookup were testing for characters less than 127 instead of 255.
+
+27. If a pattern contains capturing parentheses that are not used in a match,
+    their slots in the ovector are set to -1. For those that are higher than
+    any matched groups, this happens at the end of processing. In the case when
+    there were back references that the ovector was too small to contain
+    (causing temporary malloc'd memory to be used during matching), and the
+    highest capturing number was not used, memory off the end of the ovector
+    was incorrectly being set to -1. (It was using the size of the temporary
+    memory instead of the true size.)
+
+28. To catch bugs like 27 using valgrind, when pcretest is asked to specify an
+    ovector size, it uses memory at the end of the block that it has got.
+
+29. Check for an overlong MARK name and give an error at compile time. The
+    limit is 255 for the 8-bit library and 65535 for the 16-bit library.
+
+30. JIT compiler update.
+
+31. JIT is now supported on jailbroken iOS devices. Thanks for Ruiger
+    Rill for the patch.
+
+32. Put spaces around SLJIT_PRINT_D in the JIT compiler. Required by CXX11.
+
+33. Variable renamings in the PCRE-JIT compiler. No functionality change.
+
+34. Fixed typos in pcregrep: in two places there was SUPPORT_LIBZ2 instead of
+    SUPPORT_LIBBZ2. This caused a build problem when bzip2 but not gzip (zlib)
+    was enabled.
+
+35. Improve JIT code generation for greedy plus quantifier.
+
+36. When /((?:a?)*)*c/ or /((?>a?)*)*c/ was matched against "aac", it set group
+    1 to "aa" instead of to an empty string. The bug affected repeated groups
+    that could potentially match an empty string.
+
+37. Optimizing single character iterators in JIT.
+
+38. Wide characters specified with \uxxxx in JavaScript mode are now subject to
+    the same checks as \x{...} characters in non-JavaScript mode. Specifically,
+    codepoints that are too big for the mode are faulted, and in a UTF mode,
+    disallowed codepoints are also faulted.
+
+39. If PCRE was compiled with UTF support, in three places in the DFA
+    matcher there was code that should only have been obeyed in UTF mode, but
+    was being obeyed unconditionally. In 8-bit mode this could cause incorrect
+    processing when bytes with values greater than 127 were present. In 16-bit
+    mode the bug would be provoked by values in the range 0xfc00 to 0xdc00. In
+    both cases the values are those that cannot be the first data item in a UTF
+    character. The three items that might have provoked this were recursions,
+    possessively repeated groups, and atomic groups.
+
+40. Ensure that libpcre is explicitly listed in the link commands for pcretest
+    and pcregrep, because some OS require shared objects to be explicitly
+    passed to ld, causing the link step to fail if they are not.
+
+41. There were two incorrect #ifdefs in pcre_study.c, meaning that, in 16-bit
+    mode, patterns that started with \h* or \R* might be incorrectly matched.
+
+
+Version 8.30 04-February-2012
+-----------------------------
+
+1.  Renamed "isnumber" as "is_a_number" because in some Mac environments this
+    name is defined in ctype.h.
+
+2.  Fixed a bug in fixed-length calculation for lookbehinds that would show up
+    only in quite long subpatterns.
+
+3.  Removed the function pcre_info(), which has been obsolete and deprecated
+    since it was replaced by pcre_fullinfo() in February 2000.
+
+4.  For a non-anchored pattern, if (*SKIP) was given with a name that did not
+    match a (*MARK), and the match failed at the start of the subject, a
+    reference to memory before the start of the subject could occur. This bug
+    was introduced by fix 17 of release 8.21.
+
+5.  A reference to an unset group with zero minimum repetition was giving
+    totally wrong answers (in non-JavaScript-compatibility mode). For example,
+    /(another)?(\1?)test/ matched against "hello world test". This bug was
+    introduced in release 8.13.
+
+6.  Add support for 16-bit character strings (a large amount of work involving
+    many changes and refactorings).
+
+7.  RunGrepTest failed on msys because \r\n was replaced by whitespace when the
+    command "pattern=`printf 'xxx\r\njkl'`" was run. The pattern is now taken
+    from a file.
+
+8.  Ovector size of 2 is also supported by JIT based pcre_exec (the ovector size
+    rounding is not applied in this particular case).
+
+9.  The invalid Unicode surrogate codepoints U+D800 to U+DFFF are now rejected
+    if they appear, or are escaped, in patterns.
+
+10. Get rid of a number of -Wunused-but-set-variable warnings.
+
+11. The pattern /(?=(*:x))(q|)/ matches an empty string, and returns the mark
+    "x". The similar pattern /(?=(*:x))((*:y)q|)/ did not return a mark at all.
+    Oddly, Perl behaves the same way. PCRE has been fixed so that this pattern
+    also returns the mark "x". This bug applied to capturing parentheses,
+    non-capturing parentheses, and atomic parentheses. It also applied to some
+    assertions.
+
+12. Stephen Kelly's patch to CMakeLists.txt allows it to parse the version
+    information out of configure.ac instead of relying on pcre.h.generic, which
+    is not stored in the repository.
+
+13. Applied Dmitry V. Levin's patch for a more portable method for linking with
+    -lreadline.
+
+14. ZH added PCRE_CONFIG_JITTARGET; added its output to pcretest -C.
+
+15. Applied Graycode's patch to put the top-level frame on the stack rather
+    than the heap when not using the stack for recursion. This gives a
+    performance improvement in many cases when recursion is not deep.
+
+16. Experimental code added to "pcretest -C" to output the stack frame size.
+
+
+Version 8.21 12-Dec-2011
+------------------------
+
+1.  Updating the JIT compiler.
+
+2.  JIT compiler now supports OP_NCREF, OP_RREF and OP_NRREF. New test cases
+    are added as well.
+
+3.  Fix cache-flush issue on PowerPC (It is still an experimental JIT port).
+    PCRE_EXTRA_TABLES is not suported by JIT, and should be checked before
+    calling _pcre_jit_exec. Some extra comments are added.
+
+4.  (*MARK) settings inside atomic groups that do not contain any capturing
+    parentheses, for example, (?>a(*:m)), were not being passed out. This bug
+    was introduced by change 18 for 8.20.
+
+5.  Supporting of \x, \U and \u in JavaScript compatibility mode based on the
+    ECMA-262 standard.
+
+6.  Lookbehinds such as (?<=a{2}b) that contained a fixed repetition were
+    erroneously being rejected as "not fixed length" if PCRE_CASELESS was set.
+    This bug was probably introduced by change 9 of 8.13.
+
+7.  While fixing 6 above, I noticed that a number of other items were being
+    incorrectly rejected as "not fixed length". This arose partly because newer
+    opcodes had not been added to the fixed-length checking code. I have (a)
+    corrected the bug and added tests for these items, and (b) arranged for an
+    error to occur if an unknown opcode is encountered while checking for fixed
+    length instead of just assuming "not fixed length". The items that were
+    rejected were: (*ACCEPT), (*COMMIT), (*FAIL), (*MARK), (*PRUNE), (*SKIP),
+    (*THEN), \h, \H, \v, \V, and single character negative classes with fixed
+    repetitions, e.g. [^a]{3}, with and without PCRE_CASELESS.
+
+8.  A possessively repeated conditional subpattern such as (?(?=c)c|d)++ was
+    being incorrectly compiled and would have given unpredicatble results.
+
+9.  A possessively repeated subpattern with minimum repeat count greater than
+    one behaved incorrectly. For example, (A){2,}+ behaved as if it was
+    (A)(A)++ which meant that, after a subsequent mismatch, backtracking into
+    the first (A) could occur when it should not.
+
+10. Add a cast and remove a redundant test from the code.
+
+11. JIT should use pcre_malloc/pcre_free for allocation.
+
+12. Updated pcre-config so that it no longer shows -L/usr/lib, which seems
+    best practice nowadays, and helps with cross-compiling. (If the exec_prefix
+    is anything other than /usr, -L is still shown).
+
+13. In non-UTF-8 mode, \C is now supported in lookbehinds and DFA matching.
+
+14. Perl does not support \N without a following name in a [] class; PCRE now
+    also gives an error.
+
+15. If a forward reference was repeated with an upper limit of around 2000,
+    it caused the error "internal error: overran compiling workspace". The
+    maximum number of forward references (including repeats) was limited by the
+    internal workspace, and dependent on the LINK_SIZE. The code has been
+    rewritten so that the workspace expands (via pcre_malloc) if necessary, and
+    the default depends on LINK_SIZE. There is a new upper limit (for safety)
+    of around 200,000 forward references. While doing this, I also speeded up
+    the filling in of repeated forward references.
+
+16. A repeated forward reference in a pattern such as (a)(?2){2}(.) was
+    incorrectly expecting the subject to contain another "a" after the start.
+
+17. When (*SKIP:name) is activated without a corresponding (*MARK:name) earlier
+    in the match, the SKIP should be ignored. This was not happening; instead
+    the SKIP was being treated as NOMATCH. For patterns such as
+    /A(*MARK:A)A+(*SKIP:B)Z|AAC/ this meant that the AAC branch was never
+    tested.
+
+18. The behaviour of (*MARK), (*PRUNE), and (*THEN) has been reworked and is
+    now much more compatible with Perl, in particular in cases where the result
+    is a non-match for a non-anchored pattern. For example, if
+    /b(*:m)f|a(*:n)w/ is matched against "abc", the non-match returns the name
+    "m", where previously it did not return a name. A side effect of this
+    change is that for partial matches, the last encountered mark name is
+    returned, as for non matches. A number of tests that were previously not
+    Perl-compatible have been moved into the Perl-compatible test files. The
+    refactoring has had the pleasing side effect of removing one argument from
+    the match() function, thus reducing its stack requirements.
+
+19. If the /S+ option was used in pcretest to study a pattern using JIT,
+    subsequent uses of /S (without +) incorrectly behaved like /S+.
+
+21. Retrieve executable code size support for the JIT compiler and fixing
+    some warnings.
+
+22. A caseless match of a UTF-8 character whose other case uses fewer bytes did
+    not work when the shorter character appeared right at the end of the
+    subject string.
+
+23. Added some (int) casts to non-JIT modules to reduce warnings on 64-bit
+    systems.
+
+24. Added PCRE_INFO_JITSIZE to pass on the value from (21) above, and also
+    output it when the /M option is used in pcretest.
+
+25. The CheckMan script was not being included in the distribution. Also, added
+    an explicit "perl" to run Perl scripts from the PrepareRelease script
+    because this is reportedly needed in Windows.
+
+26. If study data was being save in a file and studying had not found a set of
+    "starts with" bytes for the pattern, the data written to the file (though
+    never used) was taken from uninitialized memory and so caused valgrind to
+    complain.
+
+27. Updated RunTest.bat as provided by Sheri Pierce.
+
+28. Fixed a possible uninitialized memory bug in pcre_jit_compile.c.
+
+29. Computation of memory usage for the table of capturing group names was
+    giving an unnecessarily large value.
+
+
+Version 8.20 21-Oct-2011
+------------------------
+
+1.  Change 37 of 8.13 broke patterns like [:a]...[b:] because it thought it had
+    a POSIX class. After further experiments with Perl, which convinced me that
+    Perl has bugs and confusions, a closing square bracket is no longer allowed
+    in a POSIX name. This bug also affected patterns with classes that started
+    with full stops.
+
+2.  If a pattern such as /(a)b|ac/ is matched against "ac", there is no
+    captured substring, but while checking the failing first alternative,
+    substring 1 is temporarily captured. If the output vector supplied to
+    pcre_exec() was not big enough for this capture, the yield of the function
+    was still zero ("insufficient space for captured substrings"). This cannot
+    be totally fixed without adding another stack variable, which seems a lot
+    of expense for a edge case. However, I have improved the situation in cases
+    such as /(a)(b)x|abc/ matched against "abc", where the return code
+    indicates that fewer than the maximum number of slots in the ovector have
+    been set.
+
+3.  Related to (2) above: when there are more back references in a pattern than
+    slots in the output vector, pcre_exec() uses temporary memory during
+    matching, and copies in the captures as far as possible afterwards. It was
+    using the entire output vector, but this conflicts with the specification
+    that only 2/3 is used for passing back captured substrings. Now it uses
+    only the first 2/3, for compatibility. This is, of course, another edge
+    case.
+
+4.  Zoltan Herczeg's just-in-time compiler support has been integrated into the
+    main code base, and can be used by building with --enable-jit. When this is
+    done, pcregrep automatically uses it unless --disable-pcregrep-jit or the
+    runtime --no-jit option is given.
+
+5.  When the number of matches in a pcre_dfa_exec() run exactly filled the
+    ovector, the return from the function was zero, implying that there were
+    other matches that did not fit. The correct "exactly full" value is now
+    returned.
+
+6.  If a subpattern that was called recursively or as a subroutine contained
+    (*PRUNE) or any other control that caused it to give a non-standard return,
+    invalid errors such as "Error -26 (nested recursion at the same subject
+    position)" or even infinite loops could occur.
+
+7.  If a pattern such as /a(*SKIP)c|b(*ACCEPT)|/ was studied, it stopped
+    computing the minimum length on reaching *ACCEPT, and so ended up with the
+    wrong value of 1 rather than 0. Further investigation indicates that
+    computing a minimum subject length in the presence of *ACCEPT is difficult
+    (think back references, subroutine calls), and so I have changed the code
+    so that no minimum is registered for a pattern that contains *ACCEPT.
+
+8.  If (*THEN) was present in the first (true) branch of a conditional group,
+    it was not handled as intended. [But see 16 below.]
+
+9.  Replaced RunTest.bat and CMakeLists.txt with improved versions provided by
+    Sheri Pierce.
+
+10. A pathological pattern such as /(*ACCEPT)a/ was miscompiled, thinking that
+    the first byte in a match must be "a".
+
+11. Change 17 for 8.13 increased the recursion depth for patterns like
+    /a(?:.)*?a/ drastically. I've improved things by remembering whether a
+    pattern contains any instances of (*THEN). If it does not, the old
+    optimizations are restored. It would be nice to do this on a per-group
+    basis, but at the moment that is not feasible.
+
+12. In some environments, the output of pcretest -C is CRLF terminated. This
+    broke RunTest's code that checks for the link size. A single white space
+    character after the value is now allowed for.
+
+13. RunTest now checks for the "fr" locale as well as for "fr_FR" and "french".
+    For "fr", it uses the Windows-specific input and output files.
+
+14. If (*THEN) appeared in a group that was called recursively or as a
+    subroutine, it did not work as intended. [But see next item.]
+
+15. Consider the pattern /A (B(*THEN)C) | D/ where A, B, C, and D are complex
+    pattern fragments (but not containing any | characters). If A and B are
+    matched, but there is a failure in C so that it backtracks to (*THEN), PCRE
+    was behaving differently to Perl. PCRE backtracked into A, but Perl goes to
+    D. In other words, Perl considers parentheses that do not contain any |
+    characters to be part of a surrounding alternative, whereas PCRE was
+    treading (B(*THEN)C) the same as (B(*THEN)C|(*FAIL)) -- which Perl handles
+    differently. PCRE now behaves in the same way as Perl, except in the case
+    of subroutine/recursion calls such as (?1) which have in any case always
+    been different (but PCRE had them first :-).
+
+16. Related to 15 above: Perl does not treat the | in a conditional group as
+    creating alternatives. Such a group is treated in the same way as an
+    ordinary group without any | characters when processing (*THEN). PCRE has
+    been changed to match Perl's behaviour.
+
+17. If a user had set PCREGREP_COLO(U)R to something other than 1:31, the
+    RunGrepTest script failed.
+
+18. Change 22 for version 13 caused atomic groups to use more stack. This is
+    inevitable for groups that contain captures, but it can lead to a lot of
+    stack use in large patterns. The old behaviour has been restored for atomic
+    groups that do not contain any capturing parentheses.
+
+19. If the PCRE_NO_START_OPTIMIZE option was set for pcre_compile(), it did not
+    suppress the check for a minimum subject length at run time. (If it was
+    given to pcre_exec() or pcre_dfa_exec() it did work.)
+
+20. Fixed an ASCII-dependent infelicity in pcretest that would have made it
+    fail to work when decoding hex characters in data strings in EBCDIC
+    environments.
+
+21. It appears that in at least one Mac OS environment, the isxdigit() function
+    is implemented as a macro that evaluates to its argument more than once,
+    contravening the C 90 Standard (I haven't checked a later standard). There
+    was an instance in pcretest which caused it to go wrong when processing
+    \x{...} escapes in subject strings. The has been rewritten to avoid using
+    things like p++ in the argument of isxdigit().
+
+
+Version 8.13 16-Aug-2011
+------------------------
+
+1.  The Unicode data tables have been updated to Unicode 6.0.0.
+
+2.  Two minor typos in pcre_internal.h have been fixed.
+
+3.  Added #include <string.h> to pcre_scanner_unittest.cc, pcrecpp.cc, and
+    pcrecpp_unittest.cc. They are needed for strcmp(), memset(), and strchr()
+    in some environments (e.g. Solaris 10/SPARC using Sun Studio 12U2).
+
+4.  There were a number of related bugs in the code for matching backrefences
+    caselessly in UTF-8 mode when codes for the characters concerned were
+    different numbers of bytes. For example, U+023A and U+2C65 are an upper
+    and lower case pair, using 2 and 3 bytes, respectively. The main bugs were:
+    (a) A reference to 3 copies of a 2-byte code matched only 2 of a 3-byte
+    code. (b) A reference to 2 copies of a 3-byte code would not match 2 of a
+    2-byte code at the end of the subject (it thought there wasn't enough data
+    left).
+
+5.  Comprehensive information about what went wrong is now returned by
+    pcre_exec() and pcre_dfa_exec() when the UTF-8 string check fails, as long
+    as the output vector has at least 2 elements. The offset of the start of
+    the failing character and a reason code are placed in the vector.
+
+6.  When the UTF-8 string check fails for pcre_compile(), the offset that is
+    now returned is for the first byte of the failing character, instead of the
+    last byte inspected. This is an incompatible change, but I hope it is small
+    enough not to be a problem. It makes the returned offset consistent with
+    pcre_exec() and pcre_dfa_exec().
+
+7.  pcretest now gives a text phrase as well as the error number when
+    pcre_exec() or pcre_dfa_exec() fails; if the error is a UTF-8 check
+    failure, the offset and reason code are output.
+
+8.  When \R was used with a maximizing quantifier it failed to skip backwards
+    over a \r\n pair if the subsequent match failed. Instead, it just skipped
+    back over a single character (\n). This seems wrong (because it treated the
+    two characters as a single entity when going forwards), conflicts with the
+    documentation that \R is equivalent to (?>\r\n|\n|...etc), and makes the
+    behaviour of \R* different to (\R)*, which also seems wrong. The behaviour
+    has been changed.
+
+9.  Some internal refactoring has changed the processing so that the handling
+    of the PCRE_CASELESS and PCRE_MULTILINE options is done entirely at compile
+    time (the PCRE_DOTALL option was changed this way some time ago: version
+    7.7 change 16). This has made it possible to abolish the OP_OPT op code,
+    which was always a bit of a fudge. It also means that there is one less
+    argument for the match() function, which reduces its stack requirements
+    slightly. This change also fixes an incompatibility with Perl: the pattern
+    (?i:([^b]))(?1) should not match "ab", but previously PCRE gave a match.
+
+10. More internal refactoring has drastically reduced the number of recursive
+    calls to match() for possessively repeated groups such as (abc)++ when
+    using pcre_exec().
+
+11. While implementing 10, a number of bugs in the handling of groups were
+    discovered and fixed:
+
+    (?<=(a)+) was not diagnosed as invalid (non-fixed-length lookbehind).
+    (a|)*(?1) gave a compile-time internal error.
+    ((a|)+)+  did not notice that the outer group could match an empty string.
+    (^a|^)+   was not marked as anchored.
+    (.*a|.*)+ was not marked as matching at start or after a newline.
+
+12. Yet more internal refactoring has removed another argument from the match()
+    function. Special calls to this function are now indicated by setting a
+    value in a variable in the "match data" data block.
+
+13. Be more explicit in pcre_study() instead of relying on "default" for
+    opcodes that mean there is no starting character; this means that when new
+    ones are added and accidentally left out of pcre_study(), testing should
+    pick them up.
+
+14. The -s option of pcretest has been documented for ages as being an old
+    synonym of -m (show memory usage). I have changed it to mean "force study
+    for every regex", that is, assume /S for every regex. This is similar to -i
+    and -d etc. It's slightly incompatible, but I'm hoping nobody is still
+    using it. It makes it easier to run collections of tests with and without
+    study enabled, and thereby test pcre_study() more easily. All the standard
+    tests are now run with and without -s (but some patterns can be marked as
+    "never study" - see 20 below).
+
+15. When (*ACCEPT) was used in a subpattern that was called recursively, the
+    restoration of the capturing data to the outer values was not happening
+    correctly.
+
+16. If a recursively called subpattern ended with (*ACCEPT) and matched an
+    empty string, and PCRE_NOTEMPTY was set, pcre_exec() thought the whole
+    pattern had matched an empty string, and so incorrectly returned a no
+    match.
+
+17. There was optimizing code for the last branch of non-capturing parentheses,
+    and also for the obeyed branch of a conditional subexpression, which used
+    tail recursion to cut down on stack usage. Unfortunately, now that there is
+    the possibility of (*THEN) occurring in these branches, tail recursion is
+    no longer possible because the return has to be checked for (*THEN). These
+    two optimizations have therefore been removed. [But see 8.20/11 above.]
+
+18. If a pattern containing \R was studied, it was assumed that \R always
+    matched two bytes, thus causing the minimum subject length to be
+    incorrectly computed because \R can also match just one byte.
+
+19. If a pattern containing (*ACCEPT) was studied, the minimum subject length
+    was incorrectly computed.
+
+20. If /S is present twice on a test pattern in pcretest input, it now
+    *disables* studying, thereby overriding the use of -s on the command line
+    (see 14 above). This is necessary for one or two tests to keep the output
+    identical in both cases.
+
+21. When (*ACCEPT) was used in an assertion that matched an empty string and
+    PCRE_NOTEMPTY was set, PCRE applied the non-empty test to the assertion.
+
+22. When an atomic group that contained a capturing parenthesis was
+    successfully matched, but the branch in which it appeared failed, the
+    capturing was not being forgotten if a higher numbered group was later
+    captured. For example, /(?>(a))b|(a)c/ when matching "ac" set capturing
+    group 1 to "a", when in fact it should be unset. This applied to multi-
+    branched capturing and non-capturing groups, repeated or not, and also to
+    positive assertions (capturing in negative assertions does not happen
+    in PCRE) and also to nested atomic groups.
+
+23. Add the ++ qualifier feature to pcretest, to show the remainder of the
+    subject after a captured substring, to make it easier to tell which of a
+    number of identical substrings has been captured.
+
+24. The way atomic groups are processed by pcre_exec() has been changed so that
+    if they are repeated, backtracking one repetition now resets captured
+    values correctly. For example, if ((?>(a+)b)+aabab) is matched against
+    "aaaabaaabaabab" the value of captured group 2 is now correctly recorded as
+    "aaa". Previously, it would have been "a". As part of this code
+    refactoring, the way recursive calls are handled has also been changed.
+
+25. If an assertion condition captured any substrings, they were not passed
+    back unless some other capturing happened later. For example, if
+    (?(?=(a))a) was matched against "a", no capturing was returned.
+
+26. When studying a pattern that contained subroutine calls or assertions,
+    the code for finding the minimum length of a possible match was handling
+    direct recursions such as (xxx(?1)|yyy) but not mutual recursions (where
+    group 1 called group 2 while simultaneously a separate group 2 called group
+    1). A stack overflow occurred in this case. I have fixed this by limiting
+    the recursion depth to 10.
+
+27. Updated RunTest.bat in the distribution to the version supplied by Tom
+    Fortmann. This supports explicit test numbers on the command line, and has
+    argument validation and error reporting.
+
+28. An instance of \X with an unlimited repeat could fail if at any point the
+    first character it looked at was a mark character.
+
+29. Some minor code refactoring concerning Unicode properties and scripts
+    should reduce the stack requirement of match() slightly.
+
+30. Added the '=' option to pcretest to check the setting of unused capturing
+    slots at the end of the pattern, which are documented as being -1, but are
+    not included in the return count.
+
+31. If \k was not followed by a braced, angle-bracketed, or quoted name, PCRE
+    compiled something random. Now it gives a compile-time error (as does
+    Perl).
+
+32. A *MARK encountered during the processing of a positive assertion is now
+    recorded and passed back (compatible with Perl).
+
+33. If --only-matching or --colour was set on a pcregrep call whose pattern
+    had alternative anchored branches, the search for a second match in a line
+    was done as if at the line start. Thus, for example, /^01|^02/ incorrectly
+    matched the line "0102" twice. The same bug affected patterns that started
+    with a backwards assertion. For example /\b01|\b02/ also matched "0102"
+    twice.
+
+34. Previously, PCRE did not allow quantification of assertions. However, Perl
+    does, and because of capturing effects, quantifying parenthesized
+    assertions may at times be useful. Quantifiers are now allowed for
+    parenthesized assertions.
+
+35. A minor code tidy in pcre_compile() when checking options for \R usage.
+
+36. \g was being checked for fancy things in a character class, when it should
+    just be a literal "g".
+
+37. PCRE was rejecting [:a[:digit:]] whereas Perl was not. It seems that the
+    appearance of a nested POSIX class supersedes an apparent external class.
+    For example, [:a[:digit:]b:] matches "a", "b", ":", or a digit. Also,
+    unescaped square brackets may also appear as part of class names. For
+    example, [:a[:abc]b:] gives unknown class "[:abc]b:]". PCRE now behaves
+    more like Perl. (But see 8.20/1 above.)
+
+38. PCRE was giving an error for \N with a braced quantifier such as {1,} (this
+    was because it thought it was \N{name}, which is not supported).
+
+39. Add minix to OS list not supporting the -S option in pcretest.
+
+40. PCRE tries to detect cases of infinite recursion at compile time, but it
+    cannot analyze patterns in sufficient detail to catch mutual recursions
+    such as ((?1))((?2)). There is now a runtime test that gives an error if a
+    subgroup is called recursively as a subpattern for a second time at the
+    same position in the subject string. In previous releases this might have
+    been caught by the recursion limit, or it might have run out of stack.
+
+41. A pattern such as /(?(R)a+|(?R)b)/ is quite safe, as the recursion can
+    happen only once. PCRE was, however incorrectly giving a compile time error
+    "recursive call could loop indefinitely" because it cannot analyze the
+    pattern in sufficient detail. The compile time test no longer happens when
+    PCRE is compiling a conditional subpattern, but actual runaway loops are
+    now caught at runtime (see 40 above).
+
+42. It seems that Perl allows any characters other than a closing parenthesis
+    to be part of the NAME in (*MARK:NAME) and other backtracking verbs. PCRE
+    has been changed to be the same.
+
+43. Updated configure.ac to put in more quoting round AC_LANG_PROGRAM etc. so
+    as not to get warnings when autogen.sh is called. Also changed
+    AC_PROG_LIBTOOL (deprecated) to LT_INIT (the current macro).
+
+44. To help people who use pcregrep to scan files containing exceedingly long
+    lines, the following changes have been made:
+
+    (a) The default value of the buffer size parameter has been increased from
+        8K to 20K. (The actual buffer used is three times this size.)
+
+    (b) The default can be changed by ./configure --with-pcregrep-bufsize when
+        PCRE is built.
+
+    (c) A --buffer-size=n option has been added to pcregrep, to allow the size
+        to be set at run time.
+
+    (d) Numerical values in pcregrep options can be followed by K or M, for
+        example --buffer-size=50K.
+
+    (e) If a line being scanned overflows pcregrep's buffer, an error is now
+        given and the return code is set to 2.
+
+45. Add a pointer to the latest mark to the callout data block.
+
+46. The pattern /.(*F)/, when applied to "abc" with PCRE_PARTIAL_HARD, gave a
+    partial match of an empty string instead of no match. This was specific to
+    the use of ".".
+
+47. The pattern /f.*/8s, when applied to "for" with PCRE_PARTIAL_HARD, gave a
+    complete match instead of a partial match. This bug was dependent on both
+    the PCRE_UTF8 and PCRE_DOTALL options being set.
+
+48. For a pattern such as /\babc|\bdef/ pcre_study() was failing to set up the
+    starting byte set, because \b was not being ignored.
+
+
+Version 8.12 15-Jan-2011
+------------------------
+
+1.  Fixed some typos in the markup of the man pages, and wrote a script that
+    checks for such things as part of the documentation building process.
+
+2.  On a big-endian 64-bit system, pcregrep did not correctly process the
+    --match-limit and --recursion-limit options (added for 8.11). In
+    particular, this made one of the standard tests fail. (The integer value
+    went into the wrong half of a long int.)
+
+3.  If the --colour option was given to pcregrep with -v (invert match), it
+    did strange things, either producing crazy output, or crashing. It should,
+    of course, ignore a request for colour when reporting lines that do not
+    match.
+
+4.  Another pcregrep bug caused similar problems if --colour was specified with
+    -M (multiline) and the pattern match finished with a line ending.
+
+5.  In pcregrep, when a pattern that ended with a literal newline sequence was
+    matched in multiline mode, the following line was shown as part of the
+    match. This seems wrong, so I have changed it.
+
+6.  Another pcregrep bug in multiline mode, when --colour was specified, caused
+    the check for further matches in the same line (so they could be coloured)
+    to overrun the end of the current line. If another match was found, it was
+    incorrectly shown (and then shown again when found in the next line).
+
+7.  If pcregrep was compiled under Windows, there was a reference to the
+    function pcregrep_exit() before it was defined. I am assuming this was
+    the cause of the "error C2371: 'pcregrep_exit' : redefinition;" that was
+    reported by a user. I've moved the definition above the reference.
+
+
+Version 8.11 10-Dec-2010
+------------------------
+
+1.  (*THEN) was not working properly if there were untried alternatives prior
+    to it in the current branch. For example, in ((a|b)(*THEN)(*F)|c..) it
+    backtracked to try for "b" instead of moving to the next alternative branch
+    at the same level (in this case, to look for "c"). The Perl documentation
+    is clear that when (*THEN) is backtracked onto, it goes to the "next
+    alternative in the innermost enclosing group".
+
+2.  (*COMMIT) was not overriding (*THEN), as it does in Perl. In a pattern
+    such as   (A(*COMMIT)B(*THEN)C|D)  any failure after matching A should
+    result in overall failure. Similarly, (*COMMIT) now overrides (*PRUNE) and
+    (*SKIP), (*SKIP) overrides (*PRUNE) and (*THEN), and (*PRUNE) overrides
+    (*THEN).
+
+3.  If \s appeared in a character class, it removed the VT character from
+    the class, even if it had been included by some previous item, for example
+    in [\x00-\xff\s]. (This was a bug related to the fact that VT is not part
+    of \s, but is part of the POSIX "space" class.)
+
+4.  A partial match never returns an empty string (because you can always
+    match an empty string at the end of the subject); however the checking for
+    an empty string was starting at the "start of match" point. This has been
+    changed to the "earliest inspected character" point, because the returned
+    data for a partial match starts at this character. This means that, for
+    example, /(?<=abc)def/ gives a partial match for the subject "abc"
+    (previously it gave "no match").
+
+5.  Changes have been made to the way PCRE_PARTIAL_HARD affects the matching
+    of $, \z, \Z, \b, and \B. If the match point is at the end of the string,
+    previously a full match would be given. However, setting PCRE_PARTIAL_HARD
+    has an implication that the given string is incomplete (because a partial
+    match is preferred over a full match). For this reason, these items now
+    give a partial match in this situation. [Aside: previously, the one case
+    /t\b/ matched against "cat" with PCRE_PARTIAL_HARD set did return a partial
+    match rather than a full match, which was wrong by the old rules, but is
+    now correct.]
+
+6.  There was a bug in the handling of #-introduced comments, recognized when
+    PCRE_EXTENDED is set, when PCRE_NEWLINE_ANY and PCRE_UTF8 were also set.
+    If a UTF-8 multi-byte character included the byte 0x85 (e.g. +U0445, whose
+    UTF-8 encoding is 0xd1,0x85), this was misinterpreted as a newline when
+    scanning for the end of the comment. (*Character* 0x85 is an "any" newline,
+    but *byte* 0x85 is not, in UTF-8 mode). This bug was present in several
+    places in pcre_compile().
+
+7.  Related to (6) above, when pcre_compile() was skipping #-introduced
+    comments when looking ahead for named forward references to subpatterns,
+    the only newline sequence it recognized was NL. It now handles newlines
+    according to the set newline convention.
+
+8.  SunOS4 doesn't have strerror() or strtoul(); pcregrep dealt with the
+    former, but used strtoul(), whereas pcretest avoided strtoul() but did not
+    cater for a lack of strerror(). These oversights have been fixed.
+
+9.  Added --match-limit and --recursion-limit to pcregrep.
+
+10. Added two casts needed to build with Visual Studio when NO_RECURSE is set.
+
+11. When the -o option was used, pcregrep was setting a return code of 1, even
+    when matches were found, and --line-buffered was not being honoured.
+
+12. Added an optional parentheses number to the -o and --only-matching options
+    of pcregrep.
+
+13. Imitating Perl's /g action for multiple matches is tricky when the pattern
+    can match an empty string. The code to do it in pcretest and pcredemo
+    needed fixing:
+
+    (a) When the newline convention was "crlf", pcretest got it wrong, skipping
+        only one byte after an empty string match just before CRLF (this case
+        just got forgotten; "any" and "anycrlf" were OK).
+
+    (b) The pcretest code also had a bug, causing it to loop forever in UTF-8
+        mode when an empty string match preceded an ASCII character followed by
+        a non-ASCII character. (The code for advancing by one character rather
+        than one byte was nonsense.)
+
+    (c) The pcredemo.c sample program did not have any code at all to handle
+        the cases when CRLF is a valid newline sequence.
+
+14. Neither pcre_exec() nor pcre_dfa_exec() was checking that the value given
+    as a starting offset was within the subject string. There is now a new
+    error, PCRE_ERROR_BADOFFSET, which is returned if the starting offset is
+    negative or greater than the length of the string. In order to test this,
+    pcretest is extended to allow the setting of negative starting offsets.
+
+15. In both pcre_exec() and pcre_dfa_exec() the code for checking that the
+    starting offset points to the beginning of a UTF-8 character was
+    unnecessarily clumsy. I tidied it up.
+
+16. Added PCRE_ERROR_SHORTUTF8 to make it possible to distinguish between a
+    bad UTF-8 sequence and one that is incomplete when using PCRE_PARTIAL_HARD.
+
+17. Nobody had reported that the --include_dir option, which was added in
+    release 7.7 should have been called --include-dir (hyphen, not underscore)
+    for compatibility with GNU grep. I have changed it to --include-dir, but
+    left --include_dir as an undocumented synonym, and the same for
+    --exclude-dir, though that is not available in GNU grep, at least as of
+    release 2.5.4.
+
+18. At a user's suggestion, the macros GETCHAR and friends (which pick up UTF-8
+    characters from a string of bytes) have been redefined so as not to use
+    loops, in order to improve performance in some environments. At the same
+    time, I abstracted some of the common code into auxiliary macros to save
+    repetition (this should not affect the compiled code).
+
+19. If \c was followed by a multibyte UTF-8 character, bad things happened. A
+    compile-time error is now given if \c is not followed by an ASCII
+    character, that is, a byte less than 128. (In EBCDIC mode, the code is
+    different, and any byte value is allowed.)
+
+20. Recognize (*NO_START_OPT) at the start of a pattern to set the PCRE_NO_
+    START_OPTIMIZE option, which is now allowed at compile time - but just
+    passed through to pcre_exec() or pcre_dfa_exec(). This makes it available
+    to pcregrep and other applications that have no direct access to PCRE
+    options. The new /Y option in pcretest sets this option when calling
+    pcre_compile().
+
+21. Change 18 of release 8.01 broke the use of named subpatterns for recursive
+    back references. Groups containing recursive back references were forced to
+    be atomic by that change, but in the case of named groups, the amount of
+    memory required was incorrectly computed, leading to "Failed: internal
+    error: code overflow". This has been fixed.
+
+22. Some patches to pcre_stringpiece.h, pcre_stringpiece_unittest.cc, and
+    pcretest.c, to avoid build problems in some Borland environments.
+
+
+Version 8.10 25-Jun-2010
+------------------------
+
+1.  Added support for (*MARK:ARG) and for ARG additions to PRUNE, SKIP, and
+    THEN.
+
+2.  (*ACCEPT) was not working when inside an atomic group.
+
+3.  Inside a character class, \B is treated as a literal by default, but
+    faulted if PCRE_EXTRA is set. This mimics Perl's behaviour (the -w option
+    causes the error). The code is unchanged, but I tidied the documentation.
+
+4.  Inside a character class, PCRE always treated \R and \X as literals,
+    whereas Perl faults them if its -w option is set. I have changed PCRE so
+    that it faults them when PCRE_EXTRA is set.
+
+5.  Added support for \N, which always matches any character other than
+    newline. (It is the same as "." when PCRE_DOTALL is not set.)
+
+6.  When compiling pcregrep with newer versions of gcc which may have
+    FORTIFY_SOURCE set, several warnings "ignoring return value of 'fwrite',
+    declared with attribute warn_unused_result" were given. Just casting the
+    result to (void) does not stop the warnings; a more elaborate fudge is
+    needed. I've used a macro to implement this.
+
+7.  Minor change to pcretest.c to avoid a compiler warning.
+
+8.  Added four artifical Unicode properties to help with an option to make
+    \s etc use properties (see next item). The new properties are: Xan
+    (alphanumeric), Xsp (Perl space), Xps (POSIX space), and Xwd (word).
+
+9.  Added PCRE_UCP to make \b, \d, \s, \w, and certain POSIX character classes
+    use Unicode properties. (*UCP) at the start of a pattern can be used to set
+    this option. Modified pcretest to add /W to test this facility. Added
+    REG_UCP to make it available via the POSIX interface.
+
+10. Added --line-buffered to pcregrep.
+
+11. In UTF-8 mode, if a pattern that was compiled with PCRE_CASELESS was
+    studied, and the match started with a letter with a code point greater than
+    127 whose first byte was different to the first byte of the other case of
+    the letter, the other case of this starting letter was not recognized
+    (#976).
+
+12. If a pattern that was studied started with a repeated Unicode property
+    test, for example, \p{Nd}+, there was the theoretical possibility of
+    setting up an incorrect bitmap of starting bytes, but fortunately it could
+    not have actually happened in practice until change 8 above was made (it
+    added property types that matched character-matching opcodes).
+
+13. pcre_study() now recognizes \h, \v, and \R when constructing a bit map of
+    possible starting bytes for non-anchored patterns.
+
+14. Extended the "auto-possessify" feature of pcre_compile(). It now recognizes
+    \R, and also a number of cases that involve Unicode properties, both
+    explicit and implicit when PCRE_UCP is set.
+
+15. If a repeated Unicode property match (e.g. \p{Lu}*) was used with non-UTF-8
+    input, it could crash or give wrong results if characters with values
+    greater than 0xc0 were present in the subject string. (Detail: it assumed
+    UTF-8 input when processing these items.)
+
+16. Added a lot of (int) casts to avoid compiler warnings in systems where
+    size_t is 64-bit (#991).
+
+17. Added a check for running out of memory when PCRE is compiled with
+    --disable-stack-for-recursion (#990).
+
+18. If the last data line in a file for pcretest does not have a newline on
+    the end, a newline was missing in the output.
+
+19. The default pcre_chartables.c file recognizes only ASCII characters (values
+    less than 128) in its various bitmaps. However, there is a facility for
+    generating tables according to the current locale when PCRE is compiled. It
+    turns out that in some environments, 0x85 and 0xa0, which are Unicode space
+    characters, are recognized by isspace() and therefore were getting set in
+    these tables, and indeed these tables seem to approximate to ISO 8859. This
+    caused a problem in UTF-8 mode when pcre_study() was used to create a list
+    of bytes that can start a match. For \s, it was including 0x85 and 0xa0,
+    which of course cannot start UTF-8 characters. I have changed the code so
+    that only real ASCII characters (less than 128) and the correct starting
+    bytes for UTF-8 encodings are set for characters greater than 127 when in
+    UTF-8 mode. (When PCRE_UCP is set - see 9 above - the code is different
+    altogether.)
+
+20. Added the /T option to pcretest so as to be able to run tests with non-
+    standard character tables, thus making it possible to include the tests
+    used for 19 above in the standard set of tests.
+
+21. A pattern such as (?&t)(?#()(?(DEFINE)(?<t>a)) which has a forward
+    reference to a subpattern the other side of a comment that contains an
+    opening parenthesis caused either an internal compiling error, or a
+    reference to the wrong subpattern.
+
+
+Version 8.02 19-Mar-2010
+------------------------
+
+1.  The Unicode data tables have been updated to Unicode 5.2.0.
+
+2.  Added the option --libs-cpp to pcre-config, but only when C++ support is
+    configured.
+
+3.  Updated the licensing terms in the pcregexp.pas file, as agreed with the
+    original author of that file, following a query about its status.
+
+4.  On systems that do not have stdint.h (e.g. Solaris), check for and include
+    inttypes.h instead. This fixes a bug that was introduced by change 8.01/8.
+
+5.  A pattern such as (?&t)*+(?(DEFINE)(?<t>.)) which has a possessive
+    quantifier applied to a forward-referencing subroutine call, could compile
+    incorrect code or give the error "internal error: previously-checked
+    referenced subpattern not found".
+
+6.  Both MS Visual Studio and Symbian OS have problems with initializing
+    variables to point to external functions. For these systems, therefore,
+    pcre_malloc etc. are now initialized to local functions that call the
+    relevant global functions.
+
+7.  There were two entries missing in the vectors called coptable and poptable
+    in pcre_dfa_exec.c. This could lead to memory accesses outsize the vectors.
+    I've fixed the data, and added a kludgy way of testing at compile time that
+    the lengths are correct (equal to the number of opcodes).
+
+8.  Following on from 7, I added a similar kludge to check the length of the
+    eint vector in pcreposix.c.
+
+9.  Error texts for pcre_compile() are held as one long string to avoid too
+    much relocation at load time. To find a text, the string is searched,
+    counting zeros. There was no check for running off the end of the string,
+    which could happen if a new error number was added without updating the
+    string.
+
+10. \K gave a compile-time error if it appeared in a lookbehind assersion.
+
+11. \K was not working if it appeared in an atomic group or in a group that
+    was called as a "subroutine", or in an assertion. Perl 5.11 documents that
+    \K is "not well defined" if used in an assertion. PCRE now accepts it if
+    the assertion is positive, but not if it is negative.
+
+12. Change 11 fortuitously reduced the size of the stack frame used in the
+    "match()" function of pcre_exec.c by one pointer. Forthcoming
+    implementation of support for (*MARK) will need an extra pointer on the
+    stack; I have reserved it now, so that the stack frame size does not
+    decrease.
+
+13. A pattern such as (?P<L1>(?P<L2>0)|(?P>L2)(?P>L1)) in which the only other
+    item in branch that calls a recursion is a subroutine call - as in the
+    second branch in the above example - was incorrectly given the compile-
+    time error "recursive call could loop indefinitely" because pcre_compile()
+    was not correctly checking the subroutine for matching a non-empty string.
+
+14. The checks for overrunning compiling workspace could trigger after an
+    overrun had occurred. This is a "should never occur" error, but it can be
+    triggered by pathological patterns such as hundreds of nested parentheses.
+    The checks now trigger 100 bytes before the end of the workspace.
+
+15. Fix typo in configure.ac: "srtoq" should be "strtoq".
+
+
+Version 8.01 19-Jan-2010
+------------------------
+
+1.  If a pattern contained a conditional subpattern with only one branch (in
+    particular, this includes all (*DEFINE) patterns), a call to pcre_study()
+    computed the wrong minimum data length (which is of course zero for such
+    subpatterns). This could cause incorrect "no match" results.
+
+2.  For patterns such as (?i)a(?-i)b|c where an option setting at the start of
+    the pattern is reset in the first branch, pcre_compile() failed with
+    "internal error: code overflow at offset...". This happened only when
+    the reset was to the original external option setting. (An optimization
+    abstracts leading options settings into an external setting, which was the
+    cause of this.)
+
+3.  A pattern such as ^(?!a(*SKIP)b) where a negative assertion contained one
+    of the verbs SKIP, PRUNE, or COMMIT, did not work correctly. When the
+    assertion pattern did not match (meaning that the assertion was true), it
+    was incorrectly treated as false if the SKIP had been reached during the
+    matching. This also applied to assertions used as conditions.
+
+4.  If an item that is not supported by pcre_dfa_exec() was encountered in an
+    assertion subpattern, including such a pattern used as a condition,
+    unpredictable results occurred, instead of the error return
+    PCRE_ERROR_DFA_UITEM.
+
+5.  The C++ GlobalReplace function was not working like Perl for the special
+    situation when an empty string is matched. It now does the fancy magic
+    stuff that is necessary.
+
+6.  In pcre_internal.h, obsolete includes to setjmp.h and stdarg.h have been
+    removed. (These were left over from very, very early versions of PCRE.)
+
+7.  Some cosmetic changes to the code to make life easier when compiling it
+    as part of something else:
+
+    (a) Change DEBUG to PCRE_DEBUG.
+
+    (b) In pcre_compile(), rename the member of the "branch_chain" structure
+        called "current" as "current_branch", to prevent a collision with the
+        Linux macro when compiled as a kernel module.
+
+    (c) In pcre_study(), rename the function set_bit() as set_table_bit(), to
+        prevent a collision with the Linux macro when compiled as a kernel
+        module.
+
+8.  In pcre_compile() there are some checks for integer overflows that used to
+    cast potentially large values to (double). This has been changed to that
+    when building, a check for int64_t is made, and if it is found, it is used
+    instead, thus avoiding the use of floating point arithmetic. (There is no
+    other use of FP in PCRE.) If int64_t is not found, the fallback is to
+    double.
+
+9.  Added two casts to avoid signed/unsigned warnings from VS Studio Express
+    2005 (difference between two addresses compared to an unsigned value).
+
+10. Change the standard AC_CHECK_LIB test for libbz2 in configure.ac to a
+    custom one, because of the following reported problem in Windows:
+
+      - libbz2 uses the Pascal calling convention (WINAPI) for the functions
+          under Win32.
+      - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h",
+          therefore missing the function definition.
+      - The compiler thus generates a "C" signature for the test function.
+      - The linker fails to find the "C" function.
+      - PCRE fails to configure if asked to do so against libbz2.
+
+11. When running libtoolize from libtool-2.2.6b as part of autogen.sh, these
+    messages were output:
+
+      Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.ac and
+      rerunning libtoolize, to keep the correct libtool macros in-tree.
+      Consider adding `-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
+
+    I have done both of these things.
+
+12. Although pcre_dfa_exec() does not use nearly as much stack as pcre_exec()
+    most of the time, it *can* run out if it is given a pattern that contains a
+    runaway infinite recursion. I updated the discussion in the pcrestack man
+    page.
+
+13. Now that we have gone to the x.xx style of version numbers, the minor
+    version may start with zero. Using 08 or 09 is a bad idea because users
+    might check the value of PCRE_MINOR in their code, and 08 or 09 may be
+    interpreted as invalid octal numbers. I've updated the previous comment in
+    configure.ac, and also added a check that gives an error if 08 or 09 are
+    used.
+
+14. Change 8.00/11 was not quite complete: code had been accidentally omitted,
+    causing partial matching to fail when the end of the subject matched \W
+    in a UTF-8 pattern where \W was quantified with a minimum of 3.
+
+15. There were some discrepancies between the declarations in pcre_internal.h
+    of _pcre_is_newline(), _pcre_was_newline(), and _pcre_valid_utf8() and
+    their definitions. The declarations used "const uschar *" and the
+    definitions used USPTR. Even though USPTR is normally defined as "const
+    unsigned char *" (and uschar is typedeffed as "unsigned char"), it was
+    reported that: "This difference in casting confuses some C++ compilers, for
+    example, SunCC recognizes above declarations as different functions and
+    generates broken code for hbpcre." I have changed the declarations to use
+    USPTR.
+
+16. GNU libtool is named differently on some systems. The autogen.sh script now
+    tries several variants such as glibtoolize (MacOSX) and libtoolize1x
+    (FreeBSD).
+
+17. Applied Craig's patch that fixes an HP aCC compile error in pcre 8.00
+    (strtoXX undefined when compiling pcrecpp.cc). The patch contains this
+    comment: "Figure out how to create a longlong from a string: strtoll and
+    equivalent. It's not enough to call AC_CHECK_FUNCS: hpux has a strtoll, for
+    instance, but it only takes 2 args instead of 3!"
+
+18. A subtle bug concerned with back references has been fixed by a change of
+    specification, with a corresponding code fix. A pattern such as
+    ^(xa|=?\1a)+$ which contains a back reference inside the group to which it
+    refers, was giving matches when it shouldn't. For example, xa=xaaa would
+    match that pattern. Interestingly, Perl (at least up to 5.11.3) has the
+    same bug. Such groups have to be quantified to be useful, or contained
+    inside another quantified group. (If there's no repetition, the reference
+    can never match.) The problem arises because, having left the group and
+    moved on to the rest of the pattern, a later failure that backtracks into
+    the group uses the captured value from the final iteration of the group
+    rather than the correct earlier one. I have fixed this in PCRE by forcing
+    any group that contains a reference to itself to be an atomic group; that
+    is, there cannot be any backtracking into it once it has completed. This is
+    similar to recursive and subroutine calls.
+
+
+Version 8.00 19-Oct-09
+----------------------
+
+1.  The table for translating pcre_compile() error codes into POSIX error codes
+    was out-of-date, and there was no check on the pcre_compile() error code
+    being within the table. This could lead to an OK return being given in
+    error.
+
+2.  Changed the call to open a subject file in pcregrep from fopen(pathname,
+    "r") to fopen(pathname, "rb"), which fixed a problem with some of the tests
+    in a Windows environment.
+
+3.  The pcregrep --count option prints the count for each file even when it is
+    zero, as does GNU grep. However, pcregrep was also printing all files when
+    --files-with-matches was added. Now, when both options are given, it prints
+    counts only for those files that have at least one match. (GNU grep just
+    prints the file name in this circumstance, but including the count seems
+    more useful - otherwise, why use --count?) Also ensured that the
+    combination -clh just lists non-zero counts, with no names.
+
+4.  The long form of the pcregrep -F option was incorrectly implemented as
+    --fixed_strings instead of --fixed-strings. This is an incompatible change,
+    but it seems right to fix it, and I didn't think it was worth preserving
+    the old behaviour.
+
+5.  The command line items --regex=pattern and --regexp=pattern were not
+    recognized by pcregrep, which required --regex pattern or --regexp pattern
+    (with a space rather than an '='). The man page documented the '=' forms,
+    which are compatible with GNU grep; these now work.
+
+6.  No libpcreposix.pc file was created for pkg-config; there was just
+    libpcre.pc and libpcrecpp.pc. The omission has been rectified.
+
+7.  Added #ifndef SUPPORT_UCP into the pcre_ucd.c module, to reduce its size
+    when UCP support is not needed, by modifying the Python script that
+    generates it from Unicode data files. This should not matter if the module
+    is correctly used as a library, but I received one complaint about 50K of
+    unwanted data. My guess is that the person linked everything into his
+    program rather than using a library. Anyway, it does no harm.
+
+8.  A pattern such as /\x{123}{2,2}+/8 was incorrectly compiled; the trigger
+    was a minimum greater than 1 for a wide character in a possessive
+    repetition. The same bug could also affect patterns like /(\x{ff}{0,2})*/8
+    which had an unlimited repeat of a nested, fixed maximum repeat of a wide
+    character. Chaos in the form of incorrect output or a compiling loop could
+    result.
+
+9.  The restrictions on what a pattern can contain when partial matching is
+    requested for pcre_exec() have been removed. All patterns can now be
+    partially matched by this function. In addition, if there are at least two
+    slots in the offset vector, the offset of the earliest inspected character
+    for the match and the offset of the end of the subject are set in them when
+    PCRE_ERROR_PARTIAL is returned.
+
+10. Partial matching has been split into two forms: PCRE_PARTIAL_SOFT, which is
+    synonymous with PCRE_PARTIAL, for backwards compatibility, and
+    PCRE_PARTIAL_HARD, which causes a partial match to supersede a full match,
+    and may be more useful for multi-segment matching.
+
+11. Partial matching with pcre_exec() is now more intuitive. A partial match
+    used to be given if ever the end of the subject was reached; now it is
+    given only if matching could not proceed because another character was
+    needed. This makes a difference in some odd cases such as Z(*FAIL) with the
+    string "Z", which now yields "no match" instead of "partial match". In the
+    case of pcre_dfa_exec(), "no match" is given if every matching path for the
+    final character ended with (*FAIL).
+
+12. Restarting a match using pcre_dfa_exec() after a partial match did not work
+    if the pattern had a "must contain" character that was already found in the
+    earlier partial match, unless partial matching was again requested. For
+    example, with the pattern /dog.(body)?/, the "must contain" character is
+    "g". If the first part-match was for the string "dog", restarting with
+    "sbody" failed. This bug has been fixed.
+
+13. The string returned by pcre_dfa_exec() after a partial match has been
+    changed so that it starts at the first inspected character rather than the
+    first character of the match. This makes a difference only if the pattern
+    starts with a lookbehind assertion or \b or \B (\K is not supported by
+    pcre_dfa_exec()). It's an incompatible change, but it makes the two
+    matching functions compatible, and I think it's the right thing to do.
+
+14. Added a pcredemo man page, created automatically from the pcredemo.c file,
+    so that the demonstration program is easily available in environments where
+    PCRE has not been installed from source.
+
+15. Arranged to add -DPCRE_STATIC to cflags in libpcre.pc, libpcreposix.cp,
+    libpcrecpp.pc and pcre-config when PCRE is not compiled as a shared
+    library.
+
+16. Added REG_UNGREEDY to the pcreposix interface, at the request of a user.
+    It maps to PCRE_UNGREEDY. It is not, of course, POSIX-compatible, but it
+    is not the first non-POSIX option to be added. Clearly some people find
+    these options useful.
+
+17. If a caller to the POSIX matching function regexec() passes a non-zero
+    value for nmatch with a NULL value for pmatch, the value of
+    nmatch is forced to zero.
+
+18. RunGrepTest did not have a test for the availability of the -u option of
+    the diff command, as RunTest does. It now checks in the same way as
+    RunTest, and also checks for the -b option.
+
+19. If an odd number of negated classes containing just a single character
+    interposed, within parentheses, between a forward reference to a named
+    subpattern and the definition of the subpattern, compilation crashed with
+    an internal error, complaining that it could not find the referenced
+    subpattern. An example of a crashing pattern is /(?&A)(([^m])(?<A>))/.
+    [The bug was that it was starting one character too far in when skipping
+    over the character class, thus treating the ] as data rather than
+    terminating the class. This meant it could skip too much.]
+
+20. Added PCRE_NOTEMPTY_ATSTART in order to be able to correctly implement the
+    /g option in pcretest when the pattern contains \K, which makes it possible
+    to have an empty string match not at the start, even when the pattern is
+    anchored. Updated pcretest and pcredemo to use this option.
+
+21. If the maximum number of capturing subpatterns in a recursion was greater
+    than the maximum at the outer level, the higher number was returned, but
+    with unset values at the outer level. The correct (outer level) value is
+    now given.
+
+22. If (*ACCEPT) appeared inside capturing parentheses, previous releases of
+    PCRE did not set those parentheses (unlike Perl). I have now found a way to
+    make it do so. The string so far is captured, making this feature
+    compatible with Perl.
+
+23. The tests have been re-organized, adding tests 11 and 12, to make it
+    possible to check the Perl 5.10 features against Perl 5.10.
+
+24. Perl 5.10 allows subroutine calls in lookbehinds, as long as the subroutine
+    pattern matches a fixed length string. PCRE did not allow this; now it
+    does. Neither allows recursion.
+
+25. I finally figured out how to implement a request to provide the minimum
+    length of subject string that was needed in order to match a given pattern.
+    (It was back references and recursion that I had previously got hung up
+    on.) This code has now been added to pcre_study(); it finds a lower bound
+    to the length of subject needed. It is not necessarily the greatest lower
+    bound, but using it to avoid searching strings that are too short does give
+    some useful speed-ups. The value is available to calling programs via
+    pcre_fullinfo().
+
+26. While implementing 25, I discovered to my embarrassment that pcretest had
+    not been passing the result of pcre_study() to pcre_dfa_exec(), so the
+    study optimizations had never been tested with that matching function.
+    Oops. What is worse, even when it was passed study data, there was a bug in
+    pcre_dfa_exec() that meant it never actually used it. Double oops. There
+    were also very few tests of studied patterns with pcre_dfa_exec().
+
+27. If (?| is used to create subpatterns with duplicate numbers, they are now
+    allowed to have the same name, even if PCRE_DUPNAMES is not set. However,
+    on the other side of the coin, they are no longer allowed to have different
+    names, because these cannot be distinguished in PCRE, and this has caused
+    confusion. (This is a difference from Perl.)
+
+28. When duplicate subpattern names are present (necessarily with different
+    numbers, as required by 27 above), and a test is made by name in a
+    conditional pattern, either for a subpattern having been matched, or for
+    recursion in such a pattern, all the associated numbered subpatterns are
+    tested, and the overall condition is true if the condition is true for any
+    one of them. This is the way Perl works, and is also more like the way
+    testing by number works.
+
+
+Version 7.9 11-Apr-09
+---------------------
+
+1.  When building with support for bzlib/zlib (pcregrep) and/or readline
+    (pcretest), all targets were linked against these libraries. This included
+    libpcre, libpcreposix, and libpcrecpp, even though they do not use these
+    libraries. This caused unwanted dependencies to be created. This problem
+    has been fixed, and now only pcregrep is linked with bzlib/zlib and only
+    pcretest is linked with readline.
+
+2.  The "typedef int BOOL" in pcre_internal.h that was included inside the
+    "#ifndef FALSE" condition by an earlier change (probably 7.8/18) has been
+    moved outside it again, because FALSE and TRUE are already defined in AIX,
+    but BOOL is not.
+
+3.  The pcre_config() function was treating the PCRE_MATCH_LIMIT and
+    PCRE_MATCH_LIMIT_RECURSION values as ints, when they should be long ints.
+
+4.  The pcregrep documentation said spaces were inserted as well as colons (or
+    hyphens) following file names and line numbers when outputting matching
+    lines. This is not true; no spaces are inserted. I have also clarified the
+    wording for the --colour (or --color) option.
+
+5.  In pcregrep, when --colour was used with -o, the list of matching strings
+    was not coloured; this is different to GNU grep, so I have changed it to be
+    the same.
+
+6.  When --colo(u)r was used in pcregrep, only the first matching substring in
+    each matching line was coloured. Now it goes on to look for further matches
+    of any of the test patterns, which is the same behaviour as GNU grep.
+
+7.  A pattern that could match an empty string could cause pcregrep to loop; it
+    doesn't make sense to accept an empty string match in pcregrep, so I have
+    locked it out (using PCRE's PCRE_NOTEMPTY option). By experiment, this
+    seems to be how GNU grep behaves.
+
+8.  The pattern (?(?=.*b)b|^) was incorrectly compiled as "match must be at
+    start or after a newline", because the conditional assertion was not being
+    correctly handled. The rule now is that both the assertion and what follows
+    in the first alternative must satisfy the test.
+
+9.  If auto-callout was enabled in a pattern with a conditional group whose
+    condition was an assertion, PCRE could crash during matching, both with
+    pcre_exec() and pcre_dfa_exec().
+
+10. The PCRE_DOLLAR_ENDONLY option was not working when pcre_dfa_exec() was
+    used for matching.
+
+11. Unicode property support in character classes was not working for
+    characters (bytes) greater than 127 when not in UTF-8 mode.
+
+12. Added the -M command line option to pcretest.
+
+14. Added the non-standard REG_NOTEMPTY option to the POSIX interface.
+
+15. Added the PCRE_NO_START_OPTIMIZE match-time option.
+
+16. Added comments and documentation about mis-use of no_arg in the C++
+    wrapper.
+
+17. Implemented support for UTF-8 encoding in EBCDIC environments, a patch
+    from Martin Jerabek that uses macro names for all relevant character and
+    string constants.
+
+18. Added to pcre_internal.h two configuration checks: (a) If both EBCDIC and
+    SUPPORT_UTF8 are set, give an error; (b) If SUPPORT_UCP is set without
+    SUPPORT_UTF8, define SUPPORT_UTF8. The "configure" script handles both of
+    these, but not everybody uses configure.
+
+19. A conditional group that had only one branch was not being correctly
+    recognized as an item that could match an empty string. This meant that an
+    enclosing group might also not be so recognized, causing infinite looping
+    (and probably a segfault) for patterns such as ^"((?(?=[a])[^"])|b)*"$
+    with the subject "ab", where knowledge that the repeated group can match
+    nothing is needed in order to break the loop.
+
+20. If a pattern that was compiled with callouts was matched using pcre_dfa_
+    exec(), but without supplying a callout function, matching went wrong.
+
+21. If PCRE_ERROR_MATCHLIMIT occurred during a recursion, there was a memory
+    leak if the size of the offset vector was greater than 30. When the vector
+    is smaller, the saved offsets during recursion go onto a local stack
+    vector, but for larger vectors malloc() is used. It was failing to free
+    when the recursion yielded PCRE_ERROR_MATCH_LIMIT (or any other "abnormal"
+    error, in fact).
+
+22. There was a missing #ifdef SUPPORT_UTF8 round one of the variables in the
+    heapframe that is used only when UTF-8 support is enabled. This caused no
+    problem, but was untidy.
+
+23. Steven Van Ingelgem's patch to CMakeLists.txt to change the name
+    CMAKE_BINARY_DIR to PROJECT_BINARY_DIR so that it works when PCRE is
+    included within another project.
+
+24. Steven Van Ingelgem's patches to add more options to the CMake support,
+    slightly modified by me:
+
+      (a) PCRE_BUILD_TESTS can be set OFF not to build the tests, including
+          not building pcregrep.
+
+      (b) PCRE_BUILD_PCREGREP can be see OFF not to build pcregrep, but only
+          if PCRE_BUILD_TESTS is also set OFF, because the tests use pcregrep.
+
+25. Forward references, both numeric and by name, in patterns that made use of
+    duplicate group numbers, could behave incorrectly or give incorrect errors,
+    because when scanning forward to find the reference group, PCRE was not
+    taking into account the duplicate group numbers. A pattern such as
+    ^X(?3)(a)(?|(b)|(q))(Y) is an example.
+
+26. Changed a few more instances of "const unsigned char *" to USPTR, making
+    the feature of a custom pointer more persuasive (as requested by a user).
+
+27. Wrapped the definitions of fileno and isatty for Windows, which appear in
+    pcretest.c, inside #ifndefs, because it seems they are sometimes already
+    pre-defined.
+
+28. Added support for (*UTF8) at the start of a pattern.
+
+29. Arrange for flags added by the "release type" setting in CMake to be shown
+    in the configuration summary.
+
+
+Version 7.8 05-Sep-08
+---------------------
+
+1.  Replaced UCP searching code with optimized version as implemented for Ad
+    Muncher (http://www.admuncher.com/) by Peter Kankowski. This uses a two-
+    stage table and inline lookup instead of a function, giving speed ups of 2
+    to 5 times on some simple patterns that I tested. Permission was given to
+    distribute the MultiStage2.py script that generates the tables (it's not in
+    the tarball, but is in the Subversion repository).
+
+2.  Updated the Unicode datatables to Unicode 5.1.0. This adds yet more
+    scripts.
+
+3.  Change 12 for 7.7 introduced a bug in pcre_study() when a pattern contained
+    a group with a zero qualifier. The result of the study could be incorrect,
+    or the function might crash, depending on the pattern.
+
+4.  Caseless matching was not working for non-ASCII characters in back
+    references. For example, /(\x{de})\1/8i was not matching \x{de}\x{fe}.
+    It now works when Unicode Property Support is available.
+
+5.  In pcretest, an escape such as \x{de} in the data was always generating
+    a UTF-8 string, even in non-UTF-8 mode. Now it generates a single byte in
+    non-UTF-8 mode. If the value is greater than 255, it gives a warning about
+    truncation.
+
+6.  Minor bugfix in pcrecpp.cc (change "" == ... to NULL == ...).
+
+7.  Added two (int) casts to pcregrep when printing the difference of two
+    pointers, in case they are 64-bit values.
+
+8.  Added comments about Mac OS X stack usage to the pcrestack man page and to
+    test 2 if it fails.
+
+9.  Added PCRE_CALL_CONVENTION just before the names of all exported functions,
+    and a #define of that name to empty if it is not externally set. This is to
+    allow users of MSVC to set it if necessary.
+
+10. The PCRE_EXP_DEFN macro which precedes exported functions was missing from
+    the convenience functions in the pcre_get.c source file.
+
+11. An option change at the start of a pattern that had top-level alternatives
+    could cause overwriting and/or a crash. This command provoked a crash in
+    some environments:
+
+      printf "/(?i)[\xc3\xa9\xc3\xbd]|[\xc3\xa9\xc3\xbdA]/8\n" | pcretest
+
+    This potential security problem was recorded as CVE-2008-2371.
+
+12. For a pattern where the match had to start at the beginning or immediately
+    after a newline (e.g /.*anything/ without the DOTALL flag), pcre_exec() and
+    pcre_dfa_exec() could read past the end of the passed subject if there was
+    no match. To help with detecting such bugs (e.g. with valgrind), I modified
+    pcretest so that it places the subject at the end of its malloc-ed buffer.
+
+13. The change to pcretest in 12 above threw up a couple more cases when pcre_
+    exec() might read past the end of the data buffer in UTF-8 mode.
+
+14. A similar bug to 7.3/2 existed when the PCRE_FIRSTLINE option was set and
+    the data contained the byte 0x85 as part of a UTF-8 character within its
+    first line. This applied both to normal and DFA matching.
+
+15. Lazy qualifiers were not working in some cases in UTF-8 mode. For example,
+    /^[^d]*?$/8 failed to match "abc".
+
+16. Added a missing copyright notice to pcrecpp_internal.h.
+
+17. Make it more clear in the documentation that values returned from
+    pcre_exec() in ovector are byte offsets, not character counts.
+
+18. Tidied a few places to stop certain compilers from issuing warnings.
+
+19. Updated the Virtual Pascal + BCC files to compile the latest v7.7, as
+    supplied by Stefan Weber. I made a further small update for 7.8 because
+    there is a change of source arrangements: the pcre_searchfuncs.c module is
+    replaced by pcre_ucd.c.
+
+
+Version 7.7 07-May-08
+---------------------
+
+1.  Applied Craig's patch to sort out a long long problem: "If we can't convert
+    a string to a long long, pretend we don't even have a long long." This is
+    done by checking for the strtoq, strtoll, and _strtoi64 functions.
+
+2.  Applied Craig's patch to pcrecpp.cc to restore ABI compatibility with
+    pre-7.6 versions, which defined a global no_arg variable instead of putting
+    it in the RE class. (See also #8 below.)
+
+3.  Remove a line of dead code, identified by coverity and reported by Nuno
+    Lopes.
+
+4.  Fixed two related pcregrep bugs involving -r with --include or --exclude:
+
+    (1) The include/exclude patterns were being applied to the whole pathnames
+        of files, instead of just to the final components.
+
+    (2) If there was more than one level of directory, the subdirectories were
+        skipped unless they satisfied the include/exclude conditions. This is
+        inconsistent with GNU grep (and could even be seen as contrary to the
+        pcregrep specification - which I improved to make it absolutely clear).
+        The action now is always to scan all levels of directory, and just
+        apply the include/exclude patterns to regular files.
+
+5.  Added the --include_dir and --exclude_dir patterns to pcregrep, and used
+    --exclude_dir in the tests to avoid scanning .svn directories.
+
+6.  Applied Craig's patch to the QuoteMeta function so that it escapes the
+    NUL character as backslash + 0 rather than backslash + NUL, because PCRE
+    doesn't support NULs in patterns.
+
+7.  Added some missing "const"s to declarations of static tables in
+    pcre_compile.c and pcre_dfa_exec.c.
+
+8.  Applied Craig's patch to pcrecpp.cc to fix a problem in OS X that was
+    caused by fix #2  above. (Subsequently also a second patch to fix the
+    first patch. And a third patch - this was a messy problem.)
+
+9.  Applied Craig's patch to remove the use of push_back().
+
+10. Applied Alan Lehotsky's patch to add REG_STARTEND support to the POSIX
+    matching function regexec().
+
+11. Added support for the Oniguruma syntax \g<name>, \g<n>, \g'name', \g'n',
+    which, however, unlike Perl's \g{...}, are subroutine calls, not back
+    references. PCRE supports relative numbers with this syntax (I don't think
+    Oniguruma does).
+
+12. Previously, a group with a zero repeat such as (...){0} was completely
+    omitted from the compiled regex. However, this means that if the group
+    was called as a subroutine from elsewhere in the pattern, things went wrong
+    (an internal error was given). Such groups are now left in the compiled
+    pattern, with a new opcode that causes them to be skipped at execution
+    time.
+
+13. Added the PCRE_JAVASCRIPT_COMPAT option. This makes the following changes
+    to the way PCRE behaves:
+
+    (a) A lone ] character is dis-allowed (Perl treats it as data).
+
+    (b) A back reference to an unmatched subpattern matches an empty string
+        (Perl fails the current match path).
+
+    (c) A data ] in a character class must be notated as \] because if the
+        first data character in a class is ], it defines an empty class. (In
+        Perl it is not possible to have an empty class.) The empty class []
+        never matches; it forces failure and is equivalent to (*FAIL) or (?!).
+        The negative empty class [^] matches any one character, independently
+        of the DOTALL setting.
+
+14. A pattern such as /(?2)[]a()b](abc)/ which had a forward reference to a
+    non-existent subpattern following a character class starting with ']' and
+    containing () gave an internal compiling error instead of "reference to
+    non-existent subpattern". Fortunately, when the pattern did exist, the
+    compiled code was correct. (When scanning forwards to check for the
+    existencd of the subpattern, it was treating the data ']' as terminating
+    the class, so got the count wrong. When actually compiling, the reference
+    was subsequently set up correctly.)
+
+15. The "always fail" assertion (?!) is optimzed to (*FAIL) by pcre_compile;
+    it was being rejected as not supported by pcre_dfa_exec(), even though
+    other assertions are supported. I have made pcre_dfa_exec() support
+    (*FAIL).
+
+16. The implementation of 13c above involved the invention of a new opcode,
+    OP_ALLANY, which is like OP_ANY but doesn't check the /s flag. Since /s
+    cannot be changed at match time, I realized I could make a small
+    improvement to matching performance by compiling OP_ALLANY instead of
+    OP_ANY for "." when DOTALL was set, and then removing the runtime tests
+    on the OP_ANY path.
+
+17. Compiling pcretest on Windows with readline support failed without the
+    following two fixes: (1) Make the unistd.h include conditional on
+    HAVE_UNISTD_H; (2) #define isatty and fileno as _isatty and _fileno.
+
+18. Changed CMakeLists.txt and cmake/FindReadline.cmake to arrange for the
+    ncurses library to be included for pcretest when ReadLine support is
+    requested, but also to allow for it to be overridden. This patch came from
+    Daniel Bergstr�m.
+
+19. There was a typo in the file ucpinternal.h where f0_rangeflag was defined
+    as 0x00f00000 instead of 0x00800000. Luckily, this would not have caused
+    any errors with the current Unicode tables. Thanks to Peter Kankowski for
+    spotting this.
+
+
+Version 7.6 28-Jan-08
+---------------------
+
+1.  A character class containing a very large number of characters with
+    codepoints greater than 255 (in UTF-8 mode, of course) caused a buffer
+    overflow.
+
+2.  Patch to cut out the "long long" test in pcrecpp_unittest when
+    HAVE_LONG_LONG is not defined.
+
+3.  Applied Christian Ehrlicher's patch to update the CMake build files to
+    bring them up to date and include new features. This patch includes:
+
+    - Fixed PH's badly added libz and libbz2 support.
+    - Fixed a problem with static linking.
+    - Added pcredemo. [But later removed - see 7 below.]
+    - Fixed dftables problem and added an option.
+    - Added a number of HAVE_XXX tests, including HAVE_WINDOWS_H and
+        HAVE_LONG_LONG.
+    - Added readline support for pcretest.
+    - Added an listing of the option settings after cmake has run.
+
+4.  A user submitted a patch to Makefile that makes it easy to create
+    "pcre.dll" under mingw when using Configure/Make. I added stuff to
+    Makefile.am that cause it to include this special target, without
+    affecting anything else. Note that the same mingw target plus all
+    the other distribution libraries and programs are now supported
+    when configuring with CMake (see 6 below) instead of with
+    Configure/Make.
+
+5.  Applied Craig's patch that moves no_arg into the RE class in the C++ code.
+    This is an attempt to solve the reported problem "pcrecpp::no_arg is not
+    exported in the Windows port". It has not yet been confirmed that the patch
+    solves the problem, but it does no harm.
+
+6.  Applied Sheri's patch to CMakeLists.txt to add NON_STANDARD_LIB_PREFIX and
+    NON_STANDARD_LIB_SUFFIX for dll names built with mingw when configured
+    with CMake, and also correct the comment about stack recursion.
+
+7.  Remove the automatic building of pcredemo from the ./configure system and
+    from CMakeLists.txt. The whole idea of pcredemo.c is that it is an example
+    of a program that users should build themselves after PCRE is installed, so
+    building it automatically is not really right. What is more, it gave
+    trouble in some build environments.
+
+8.  Further tidies to CMakeLists.txt from Sheri and Christian.
+
+
+Version 7.5 10-Jan-08
+---------------------
+
+1.  Applied a patch from Craig: "This patch makes it possible to 'ignore'
+    values in parens when parsing an RE using the C++ wrapper."
+
+2.  Negative specials like \S did not work in character classes in UTF-8 mode.
+    Characters greater than 255 were excluded from the class instead of being
+    included.
+
+3.  The same bug as (2) above applied to negated POSIX classes such as
+    [:^space:].
+
+4.  PCRECPP_STATIC was referenced in pcrecpp_internal.h, but nowhere was it
+    defined or documented. It seems to have been a typo for PCRE_STATIC, so
+    I have changed it.
+
+5.  The construct (?&) was not diagnosed as a syntax error (it referenced the
+    first named subpattern) and a construct such as (?&a) would reference the
+    first named subpattern whose name started with "a" (in other words, the
+    length check was missing). Both these problems are fixed. "Subpattern name
+    expected" is now given for (?&) (a zero-length name), and this patch also
+    makes it give the same error for \k'' (previously it complained that that
+    was a reference to a non-existent subpattern).
+
+6.  The erroneous patterns (?+-a) and (?-+a) give different error messages;
+    this is right because (?- can be followed by option settings as well as by
+    digits. I have, however, made the messages clearer.
+
+7.  Patterns such as (?(1)a|b) (a pattern that contains fewer subpatterns
+    than the number used in the conditional) now cause a compile-time error.
+    This is actually not compatible with Perl, which accepts such patterns, but
+    treats the conditional as always being FALSE (as PCRE used to), but it
+    seems to me that giving a diagnostic is better.
+
+8.  Change "alphameric" to the more common word "alphanumeric" in comments
+    and messages.
+
+9.  Fix two occurrences of "backslash" in comments that should have been
+    "backspace".
+
+10. Remove two redundant lines of code that can never be obeyed (their function
+    was moved elsewhere).
+
+11. The program that makes PCRE's Unicode character property table had a bug
+    which caused it to generate incorrect table entries for sequences of
+    characters that have the same character type, but are in different scripts.
+    It amalgamated them into a single range, with the script of the first of
+    them. In other words, some characters were in the wrong script. There were
+    thirteen such cases, affecting characters in the following ranges:
+
+      U+002b0 - U+002c1
+      U+0060c - U+0060d
+      U+0061e - U+00612
+      U+0064b - U+0065e
+      U+0074d - U+0076d
+      U+01800 - U+01805
+      U+01d00 - U+01d77
+      U+01d9b - U+01dbf
+      U+0200b - U+0200f
+      U+030fc - U+030fe
+      U+03260 - U+0327f
+      U+0fb46 - U+0fbb1
+      U+10450 - U+1049d
+
+12. The -o option (show only the matching part of a line) for pcregrep was not
+    compatible with GNU grep in that, if there was more than one match in a
+    line, it showed only the first of them. It now behaves in the same way as
+    GNU grep.
+
+13. If the -o and -v options were combined for pcregrep, it printed a blank
+    line for every non-matching line. GNU grep prints nothing, and pcregrep now
+    does the same. The return code can be used to tell if there were any
+    non-matching lines.
+
+14. Added --file-offsets and --line-offsets to pcregrep.
+
+15. The pattern (?=something)(?R) was not being diagnosed as a potentially
+    infinitely looping recursion. The bug was that positive lookaheads were not
+    being skipped when checking for a possible empty match (negative lookaheads
+    and both kinds of lookbehind were skipped).
+
+16. Fixed two typos in the Windows-only code in pcregrep.c, and moved the
+    inclusion of <windows.h> to before rather than after the definition of
+    INVALID_FILE_ATTRIBUTES (patch from David Byron).
+
+17. Specifying a possessive quantifier with a specific limit for a Unicode
+    character property caused pcre_compile() to compile bad code, which led at
+    runtime to PCRE_ERROR_INTERNAL (-14). Examples of patterns that caused this
+    are: /\p{Zl}{2,3}+/8 and /\p{Cc}{2}+/8. It was the possessive "+" that
+    caused the error; without that there was no problem.
+
+18. Added --enable-pcregrep-libz and --enable-pcregrep-libbz2.
+
+19. Added --enable-pcretest-libreadline.
+
+20. In pcrecpp.cc, the variable 'count' was incremented twice in
+    RE::GlobalReplace(). As a result, the number of replacements returned was
+    double what it should be. I removed one of the increments, but Craig sent a
+    later patch that removed the other one (the right fix) and added unit tests
+    that check the return values (which was not done before).
+
+21. Several CMake things:
+
+    (1) Arranged that, when cmake is used on Unix, the libraries end up with
+        the names libpcre and libpcreposix, not just pcre and pcreposix.
+
+    (2) The above change means that pcretest and pcregrep are now correctly
+        linked with the newly-built libraries, not previously installed ones.
+
+    (3) Added PCRE_SUPPORT_LIBREADLINE, PCRE_SUPPORT_LIBZ, PCRE_SUPPORT_LIBBZ2.
+
+22. In UTF-8 mode, with newline set to "any", a pattern such as .*a.*=.b.*
+    crashed when matching a string such as a\x{2029}b (note that \x{2029} is a
+    UTF-8 newline character). The key issue is that the pattern starts .*;
+    this means that the match must be either at the beginning, or after a
+    newline. The bug was in the code for advancing after a failed match and
+    checking that the new position followed a newline. It was not taking
+    account of UTF-8 characters correctly.
+
+23. PCRE was behaving differently from Perl in the way it recognized POSIX
+    character classes. PCRE was not treating the sequence [:...:] as a
+    character class unless the ... were all letters. Perl, however, seems to
+    allow any characters between [: and :], though of course it rejects as
+    unknown any "names" that contain non-letters, because all the known class
+    names consist only of letters. Thus, Perl gives an error for [[:1234:]],
+    for example, whereas PCRE did not - it did not recognize a POSIX character
+    class. This seemed a bit dangerous, so the code has been changed to be
+    closer to Perl. The behaviour is not identical to Perl, because PCRE will
+    diagnose an unknown class for, for example, [[:l\ower:]] where Perl will
+    treat it as [[:lower:]]. However, PCRE does now give "unknown" errors where
+    Perl does, and where it didn't before.
+
+24. Rewrite so as to remove the single use of %n from pcregrep because in some
+    Windows environments %n is disabled by default.
+
+
+Version 7.4 21-Sep-07
+---------------------
+
+1.  Change 7.3/28 was implemented for classes by looking at the bitmap. This
+    means that a class such as [\s] counted as "explicit reference to CR or
+    LF". That isn't really right - the whole point of the change was to try to
+    help when there was an actual mention of one of the two characters. So now
+    the change happens only if \r or \n (or a literal CR or LF) character is
+    encountered.
+
+2.  The 32-bit options word was also used for 6 internal flags, but the numbers
+    of both had grown to the point where there were only 3 bits left.
+    Fortunately, there was spare space in the data structure, and so I have
+    moved the internal flags into a new 16-bit field to free up more option
+    bits.
+
+3.  The appearance of (?J) at the start of a pattern set the DUPNAMES option,
+    but did not set the internal JCHANGED flag - either of these is enough to
+    control the way the "get" function works - but the PCRE_INFO_JCHANGED
+    facility is supposed to tell if (?J) was ever used, so now (?J) at the
+    start sets both bits.
+
+4.  Added options (at build time, compile time, exec time) to change \R from
+    matching any Unicode line ending sequence to just matching CR, LF, or CRLF.
+
+5.  doc/pcresyntax.html was missing from the distribution.
+
+6.  Put back the definition of PCRE_ERROR_NULLWSLIMIT, for backward
+    compatibility, even though it is no longer used.
+
+7.  Added macro for snprintf to pcrecpp_unittest.cc and also for strtoll and
+    strtoull to pcrecpp.cc to select the available functions in WIN32 when the
+    windows.h file is present (where different names are used). [This was
+    reversed later after testing - see 16 below.]
+
+8.  Changed all #include <config.h> to #include "config.h". There were also
+    some further <pcre.h> cases that I changed to "pcre.h".
+
+9.  When pcregrep was used with the --colour option, it missed the line ending
+    sequence off the lines that it output.
+
+10. It was pointed out to me that arrays of string pointers cause lots of
+    relocations when a shared library is dynamically loaded. A technique of
+    using a single long string with a table of offsets can drastically reduce
+    these. I have refactored PCRE in four places to do this. The result is
+    dramatic:
+
+      Originally:                          290
+      After changing UCP table:            187
+      After changing error message table:   43
+      After changing table of "verbs"       36
+      After changing table of Posix names   22
+
+    Thanks to the folks working on Gregex for glib for this insight.
+
+11. --disable-stack-for-recursion caused compiling to fail unless -enable-
+    unicode-properties was also set.
+
+12. Updated the tests so that they work when \R is defaulted to ANYCRLF.
+
+13. Added checks for ANY and ANYCRLF to pcrecpp.cc where it previously
+    checked only for CRLF.
+
+14. Added casts to pcretest.c to avoid compiler warnings.
+
+15. Added Craig's patch to various pcrecpp modules to avoid compiler warnings.
+
+16. Added Craig's patch to remove the WINDOWS_H tests, that were not working,
+    and instead check for _strtoi64 explicitly, and avoid the use of snprintf()
+    entirely. This removes changes made in 7 above.
+
+17. The CMake files have been updated, and there is now more information about
+    building with CMake in the NON-UNIX-USE document.
+
+
+Version 7.3 28-Aug-07
+---------------------
+
+ 1. In the rejigging of the build system that eventually resulted in 7.1, the
+    line "#include <pcre.h>" was included in pcre_internal.h. The use of angle
+    brackets there is not right, since it causes compilers to look for an
+    installed pcre.h, not the version that is in the source that is being
+    compiled (which of course may be different). I have changed it back to:
+
+      #include "pcre.h"
+
+    I have a vague recollection that the change was concerned with compiling in
+    different directories, but in the new build system, that is taken care of
+    by the VPATH setting the Makefile.
+
+ 2. The pattern .*$ when run in not-DOTALL UTF-8 mode with newline=any failed
+    when the subject happened to end in the byte 0x85 (e.g. if the last
+    character was \x{1ec5}). *Character* 0x85 is one of the "any" newline
+    characters but of course it shouldn't be taken as a newline when it is part
+    of another character. The bug was that, for an unlimited repeat of . in
+    not-DOTALL UTF-8 mode, PCRE was advancing by bytes rather than by
+    characters when looking for a newline.
+
+ 3. A small performance improvement in the DOTALL UTF-8 mode .* case.
+
+ 4. Debugging: adjusted the names of opcodes for different kinds of parentheses
+    in debug output.
+
+ 5. Arrange to use "%I64d" instead of "%lld" and "%I64u" instead of "%llu" for
+    long printing in the pcrecpp unittest when running under MinGW.
+
+ 6. ESC_K was left out of the EBCDIC table.
+
+ 7. Change 7.0/38 introduced a new limit on the number of nested non-capturing
+    parentheses; I made it 1000, which seemed large enough. Unfortunately, the
+    limit also applies to "virtual nesting" when a pattern is recursive, and in
+    this case 1000 isn't so big. I have been able to remove this limit at the
+    expense of backing off one optimization in certain circumstances. Normally,
+    when pcre_exec() would call its internal match() function recursively and
+    immediately return the result unconditionally, it uses a "tail recursion"
+    feature to save stack. However, when a subpattern that can match an empty
+    string has an unlimited repetition quantifier, it no longer makes this
+    optimization. That gives it a stack frame in which to save the data for
+    checking that an empty string has been matched. Previously this was taken
+    from the 1000-entry workspace that had been reserved. So now there is no
+    explicit limit, but more stack is used.
+
+ 8. Applied Daniel's patches to solve problems with the import/export magic
+    syntax that is required for Windows, and which was going wrong for the
+    pcreposix and pcrecpp parts of the library. These were overlooked when this
+    problem was solved for the main library.
+
+ 9. There were some crude static tests to avoid integer overflow when computing
+    the size of patterns that contain repeated groups with explicit upper
+    limits. As the maximum quantifier is 65535, the maximum group length was
+    set at 30,000 so that the product of these two numbers did not overflow a
+    32-bit integer. However, it turns out that people want to use groups that
+    are longer than 30,000 bytes (though not repeat them that many times).
+    Change 7.0/17 (the refactoring of the way the pattern size is computed) has
+    made it possible to implement the integer overflow checks in a much more
+    dynamic way, which I have now done. The artificial limitation on group
+    length has been removed - we now have only the limit on the total length of
+    the compiled pattern, which depends on the LINK_SIZE setting.
+
+10. Fixed a bug in the documentation for get/copy named substring when
+    duplicate names are permitted. If none of the named substrings are set, the
+    functions return PCRE_ERROR_NOSUBSTRING (7); the doc said they returned an
+    empty string.
+
+11. Because Perl interprets \Q...\E at a high level, and ignores orphan \E
+    instances, patterns such as [\Q\E] or [\E] or even [^\E] cause an error,
+    because the ] is interpreted as the first data character and the
+    terminating ] is not found. PCRE has been made compatible with Perl in this
+    regard. Previously, it interpreted [\Q\E] as an empty class, and [\E] could
+    cause memory overwriting.
+
+10. Like Perl, PCRE automatically breaks an unlimited repeat after an empty
+    string has been matched (to stop an infinite loop). It was not recognizing
+    a conditional subpattern that could match an empty string if that
+    subpattern was within another subpattern. For example, it looped when
+    trying to match  (((?(1)X|))*)  but it was OK with  ((?(1)X|)*)  where the
+    condition was not nested. This bug has been fixed.
+
+12. A pattern like \X?\d or \P{L}?\d in non-UTF-8 mode could cause a backtrack
+    past the start of the subject in the presence of bytes with the top bit
+    set, for example "\x8aBCD".
+
+13. Added Perl 5.10 experimental backtracking controls (*FAIL), (*F), (*PRUNE),
+    (*SKIP), (*THEN), (*COMMIT), and (*ACCEPT).
+
+14. Optimized (?!) to (*FAIL).
+
+15. Updated the test for a valid UTF-8 string to conform to the later RFC 3629.
+    This restricts code points to be within the range 0 to 0x10FFFF, excluding
+    the "low surrogate" sequence 0xD800 to 0xDFFF. Previously, PCRE allowed the
+    full range 0 to 0x7FFFFFFF, as defined by RFC 2279. Internally, it still
+    does: it's just the validity check that is more restrictive.
+
+16. Inserted checks for integer overflows during escape sequence (backslash)
+    processing, and also fixed erroneous offset values for syntax errors during
+    backslash processing.
+
+17. Fixed another case of looking too far back in non-UTF-8 mode (cf 12 above)
+    for patterns like [\PPP\x8a]{1,}\x80 with the subject "A\x80".
+
+18. An unterminated class in a pattern like (?1)\c[ with a "forward reference"
+    caused an overrun.
+
+19. A pattern like (?:[\PPa*]*){8,} which had an "extended class" (one with
+    something other than just ASCII characters) inside a group that had an
+    unlimited repeat caused a loop at compile time (while checking to see
+    whether the group could match an empty string).
+
+20. Debugging a pattern containing \p or \P could cause a crash. For example,
+    [\P{Any}] did so. (Error in the code for printing property names.)
+
+21. An orphan \E inside a character class could cause a crash.
+
+22. A repeated capturing bracket such as (A)? could cause a wild memory
+    reference during compilation.
+
+23. There are several functions in pcre_compile() that scan along a compiled
+    expression for various reasons (e.g. to see if it's fixed length for look
+    behind). There were bugs in these functions when a repeated \p or \P was
+    present in the pattern. These operators have additional parameters compared
+    with \d, etc, and these were not being taken into account when moving along
+    the compiled data. Specifically:
+
+    (a) A item such as \p{Yi}{3} in a lookbehind was not treated as fixed
+        length.
+
+    (b) An item such as \pL+ within a repeated group could cause crashes or
+        loops.
+
+    (c) A pattern such as \p{Yi}+(\P{Yi}+)(?1) could give an incorrect
+        "reference to non-existent subpattern" error.
+
+    (d) A pattern like (\P{Yi}{2}\277)? could loop at compile time.
+
+24. A repeated \S or \W in UTF-8 mode could give wrong answers when multibyte
+    characters were involved (for example /\S{2}/8g with "A\x{a3}BC").
+
+25. Using pcregrep in multiline, inverted mode (-Mv) caused it to loop.
+
+26. Patterns such as [\P{Yi}A] which include \p or \P and just one other
+    character were causing crashes (broken optimization).
+
+27. Patterns such as (\P{Yi}*\277)* (group with possible zero repeat containing
+    \p or \P) caused a compile-time loop.
+
+28. More problems have arisen in unanchored patterns when CRLF is a valid line
+    break. For example, the unstudied pattern [\r\n]A does not match the string
+    "\r\nA" because change 7.0/46 below moves the current point on by two
+    characters after failing to match at the start. However, the pattern \nA
+    *does* match, because it doesn't start till \n, and if [\r\n]A is studied,
+    the same is true. There doesn't seem any very clean way out of this, but
+    what I have chosen to do makes the common cases work: PCRE now takes note
+    of whether there can be an explicit match for \r or \n anywhere in the
+    pattern, and if so, 7.0/46 no longer applies. As part of this change,
+    there's a new PCRE_INFO_HASCRORLF option for finding out whether a compiled
+    pattern has explicit CR or LF references.
+
+29. Added (*CR) etc for changing newline setting at start of pattern.
+
+
+Version 7.2 19-Jun-07
+---------------------
+
+ 1. If the fr_FR locale cannot be found for test 3, try the "french" locale,
+    which is apparently normally available under Windows.
+
+ 2. Re-jig the pcregrep tests with different newline settings in an attempt
+    to make them independent of the local environment's newline setting.
+
+ 3. Add code to configure.ac to remove -g from the CFLAGS default settings.
+
+ 4. Some of the "internals" tests were previously cut out when the link size
+    was not 2, because the output contained actual offsets. The recent new
+    "Z" feature of pcretest means that these can be cut out, making the tests
+    usable with all link sizes.
+
+ 5. Implemented Stan Switzer's goto replacement for longjmp() when not using
+    stack recursion. This gives a massive performance boost under BSD, but just
+    a small improvement under Linux. However, it saves one field in the frame
+    in all cases.
+
+ 6. Added more features from the forthcoming Perl 5.10:
+
+    (a) (?-n) (where n is a string of digits) is a relative subroutine or
+        recursion call. It refers to the nth most recently opened parentheses.
+
+    (b) (?+n) is also a relative subroutine call; it refers to the nth next
+        to be opened parentheses.
+
+    (c) Conditions that refer to capturing parentheses can be specified
+        relatively, for example, (?(-2)... or (?(+3)...
+
+    (d) \K resets the start of the current match so that everything before
+        is not part of it.
+
+    (e) \k{name} is synonymous with \k<name> and \k'name' (.NET compatible).
+
+    (f) \g{name} is another synonym - part of Perl 5.10's unification of
+        reference syntax.
+
+    (g) (?| introduces a group in which the numbering of parentheses in each
+        alternative starts with the same number.
+
+    (h) \h, \H, \v, and \V match horizontal and vertical whitespace.
+
+ 7. Added two new calls to pcre_fullinfo(): PCRE_INFO_OKPARTIAL and
+    PCRE_INFO_JCHANGED.
+
+ 8. A pattern such as  (.*(.)?)*  caused pcre_exec() to fail by either not
+    terminating or by crashing. Diagnosed by Viktor Griph; it was in the code
+    for detecting groups that can match an empty string.
+
+ 9. A pattern with a very large number of alternatives (more than several
+    hundred) was running out of internal workspace during the pre-compile
+    phase, where pcre_compile() figures out how much memory will be needed. A
+    bit of new cunning has reduced the workspace needed for groups with
+    alternatives. The 1000-alternative test pattern now uses 12 bytes of
+    workspace instead of running out of the 4096 that are available.
+
+10. Inserted some missing (unsigned int) casts to get rid of compiler warnings.
+
+11. Applied patch from Google to remove an optimization that didn't quite work.
+    The report of the bug said:
+
+      pcrecpp::RE("a*").FullMatch("aaa") matches, while
+      pcrecpp::RE("a*?").FullMatch("aaa") does not, and
+      pcrecpp::RE("a*?\\z").FullMatch("aaa") does again.
+
+12. If \p or \P was used in non-UTF-8 mode on a character greater than 127
+    it matched the wrong number of bytes.
+
+
+Version 7.1 24-Apr-07
+---------------------
+
+ 1. Applied Bob Rossi and Daniel G's patches to convert the build system to one
+    that is more "standard", making use of automake and other Autotools. There
+    is some re-arrangement of the files and adjustment of comments consequent
+    on this.
+
+ 2. Part of the patch fixed a problem with the pcregrep tests. The test of -r
+    for recursive directory scanning broke on some systems because the files
+    are not scanned in any specific order and on different systems the order
+    was different. A call to "sort" has been inserted into RunGrepTest for the
+    approprate test as a short-term fix. In the longer term there may be an
+    alternative.
+
+ 3. I had an email from Eric Raymond about problems translating some of PCRE's
+    man pages to HTML (despite the fact that I distribute HTML pages, some
+    people do their own conversions for various reasons). The problems
+    concerned the use of low-level troff macros .br and .in. I have therefore
+    removed all such uses from the man pages (some were redundant, some could
+    be replaced by .nf/.fi pairs). The 132html script that I use to generate
+    HTML has been updated to handle .nf/.fi and to complain if it encounters
+    .br or .in.
+
+ 4. Updated comments in configure.ac that get placed in config.h.in and also
+    arranged for config.h to be included in the distribution, with the name
+    config.h.generic, for the benefit of those who have to compile without
+    Autotools (compare pcre.h, which is now distributed as pcre.h.generic).
+
+ 5. Updated the support (such as it is) for Virtual Pascal, thanks to Stefan
+    Weber: (1) pcre_internal.h was missing some function renames; (2) updated
+    makevp.bat for the current PCRE, using the additional files
+    makevp_c.txt, makevp_l.txt, and pcregexp.pas.
+
+ 6. A Windows user reported a minor discrepancy with test 2, which turned out
+    to be caused by a trailing space on an input line that had got lost in his
+    copy. The trailing space was an accident, so I've just removed it.
+
+ 7. Add -Wl,-R... flags in pcre-config.in for *BSD* systems, as I'm told
+    that is needed.
+
+ 8. Mark ucp_table (in ucptable.h) and ucp_gentype (in pcre_ucp_searchfuncs.c)
+    as "const" (a) because they are and (b) because it helps the PHP
+    maintainers who have recently made a script to detect big data structures
+    in the php code that should be moved to the .rodata section. I remembered
+    to update Builducptable as well, so it won't revert if ucptable.h is ever
+    re-created.
+
+ 9. Added some extra #ifdef SUPPORT_UTF8 conditionals into pcretest.c,
+    pcre_printint.src, pcre_compile.c, pcre_study.c, and pcre_tables.c, in
+    order to be able to cut out the UTF-8 tables in the latter when UTF-8
+    support is not required. This saves 1.5-2K of code, which is important in
+    some applications.
+
+    Later: more #ifdefs are needed in pcre_ord2utf8.c and pcre_valid_utf8.c
+    so as not to refer to the tables, even though these functions will never be
+    called when UTF-8 support is disabled. Otherwise there are problems with a
+    shared library.
+
+10. Fixed two bugs in the emulated memmove() function in pcre_internal.h:
+
+    (a) It was defining its arguments as char * instead of void *.
+
+    (b) It was assuming that all moves were upwards in memory; this was true
+        a long time ago when I wrote it, but is no longer the case.
+
+    The emulated memove() is provided for those environments that have neither
+    memmove() nor bcopy(). I didn't think anyone used it these days, but that
+    is clearly not the case, as these two bugs were recently reported.
+
+11. The script PrepareRelease is now distributed: it calls 132html, CleanTxt,
+    and Detrail to create the HTML documentation, the .txt form of the man
+    pages, and it removes trailing spaces from listed files. It also creates
+    pcre.h.generic and config.h.generic from pcre.h and config.h. In the latter
+    case, it wraps all the #defines with #ifndefs. This script should be run
+    before "make dist".
+
+12. Fixed two fairly obscure bugs concerned with quantified caseless matching
+    with Unicode property support.
+
+    (a) For a maximizing quantifier, if the two different cases of the
+        character were of different lengths in their UTF-8 codings (there are
+        some cases like this - I found 11), and the matching function had to
+        back up over a mixture of the two cases, it incorrectly assumed they
+        were both the same length.
+
+    (b) When PCRE was configured to use the heap rather than the stack for
+        recursion during matching, it was not correctly preserving the data for
+        the other case of a UTF-8 character when checking ahead for a match
+        while processing a minimizing repeat. If the check also involved
+        matching a wide character, but failed, corruption could cause an
+        erroneous result when trying to check for a repeat of the original
+        character.
+
+13. Some tidying changes to the testing mechanism:
+
+    (a) The RunTest script now detects the internal link size and whether there
+        is UTF-8 and UCP support by running ./pcretest -C instead of relying on
+        values substituted by "configure". (The RunGrepTest script already did
+        this for UTF-8.) The configure.ac script no longer substitutes the
+        relevant variables.
+
+    (b) The debugging options /B and /D in pcretest show the compiled bytecode
+        with length and offset values. This means that the output is different
+        for different internal link sizes. Test 2 is skipped for link sizes
+        other than 2 because of this, bypassing the problem. Unfortunately,
+        there was also a test in test 3 (the locale tests) that used /B and
+        failed for link sizes other than 2. Rather than cut the whole test out,
+        I have added a new /Z option to pcretest that replaces the length and
+        offset values with spaces. This is now used to make test 3 independent
+        of link size. (Test 2 will be tidied up later.)
+
+14. If erroroffset was passed as NULL to pcre_compile, it provoked a
+    segmentation fault instead of returning the appropriate error message.
+
+15. In multiline mode when the newline sequence was set to "any", the pattern
+    ^$ would give a match between the \r and \n of a subject such as "A\r\nB".
+    This doesn't seem right; it now treats the CRLF combination as the line
+    ending, and so does not match in that case. It's only a pattern such as ^$
+    that would hit this one: something like ^ABC$ would have failed after \r
+    and then tried again after \r\n.
+
+16. Changed the comparison command for RunGrepTest from "diff -u" to "diff -ub"
+    in an attempt to make files that differ only in their line terminators
+    compare equal. This works on Linux.
+
+17. Under certain error circumstances pcregrep might try to free random memory
+    as it exited. This is now fixed, thanks to valgrind.
+
+19. In pcretest, if the pattern /(?m)^$/g<any> was matched against the string
+    "abc\r\n\r\n", it found an unwanted second match after the second \r. This
+    was because its rules for how to advance for /g after matching an empty
+    string at the end of a line did not allow for this case. They now check for
+    it specially.
+
+20. pcretest is supposed to handle patterns and data of any length, by
+    extending its buffers when necessary. It was getting this wrong when the
+    buffer for a data line had to be extended.
+
+21. Added PCRE_NEWLINE_ANYCRLF which is like ANY, but matches only CR, LF, or
+    CRLF as a newline sequence.
+
+22. Code for handling Unicode properties in pcre_dfa_exec() wasn't being cut
+    out by #ifdef SUPPORT_UCP. This did no harm, as it could never be used, but
+    I have nevertheless tidied it up.
+
+23. Added some casts to kill warnings from HP-UX ia64 compiler.
+
+24. Added a man page for pcre-config.
+
+
+Version 7.0 19-Dec-06
+---------------------
+
+ 1. Fixed a signed/unsigned compiler warning in pcre_compile.c, shown up by
+    moving to gcc 4.1.1.
+
+ 2. The -S option for pcretest uses setrlimit(); I had omitted to #include
+    sys/time.h, which is documented as needed for this function. It doesn't
+    seem to matter on Linux, but it showed up on some releases of OS X.
+
+ 3. It seems that there are systems where bytes whose values are greater than
+    127 match isprint() in the "C" locale. The "C" locale should be the
+    default when a C program starts up. In most systems, only ASCII printing
+    characters match isprint(). This difference caused the output from pcretest
+    to vary, making some of the tests fail. I have changed pcretest so that:
+
+    (a) When it is outputting text in the compiled version of a pattern, bytes
+        other than 32-126 are always shown as hex escapes.
+
+    (b) When it is outputting text that is a matched part of a subject string,
+        it does the same, unless a different locale has been set for the match
+        (using the /L modifier). In this case, it uses isprint() to decide.
+
+ 4. Fixed a major bug that caused incorrect computation of the amount of memory
+    required for a compiled pattern when options that changed within the
+    pattern affected the logic of the preliminary scan that determines the
+    length. The relevant options are -x, and -i in UTF-8 mode. The result was
+    that the computed length was too small. The symptoms of this bug were
+    either the PCRE error "internal error: code overflow" from pcre_compile(),
+    or a glibc crash with a message such as "pcretest: free(): invalid next
+    size (fast)". Examples of patterns that provoked this bug (shown in
+    pcretest format) are:
+
+      /(?-x: )/x
+      /(?x)(?-x: \s*#\s*)/
+      /((?i)[\x{c0}])/8
+      /(?i:[\x{c0}])/8
+
+    HOWEVER: Change 17 below makes this fix obsolete as the memory computation
+    is now done differently.
+
+ 5. Applied patches from Google to: (a) add a QuoteMeta function to the C++
+    wrapper classes; (b) implement a new function in the C++ scanner that is
+    more efficient than the old way of doing things because it avoids levels of
+    recursion in the regex matching; (c) add a paragraph to the documentation
+    for the FullMatch() function.
+
+ 6. The escape sequence \n was being treated as whatever was defined as
+    "newline". Not only was this contrary to the documentation, which states
+    that \n is character 10 (hex 0A), but it also went horribly wrong when
+    "newline" was defined as CRLF. This has been fixed.
+
+ 7. In pcre_dfa_exec.c the value of an unsigned integer (the variable called c)
+    was being set to -1 for the "end of line" case (supposedly a value that no
+    character can have). Though this value is never used (the check for end of
+    line is "zero bytes in current character"), it caused compiler complaints.
+    I've changed it to 0xffffffff.
+
+ 8. In pcre_version.c, the version string was being built by a sequence of
+    C macros that, in the event of PCRE_PRERELEASE being defined as an empty
+    string (as it is for production releases) called a macro with an empty
+    argument. The C standard says the result of this is undefined. The gcc
+    compiler treats it as an empty string (which was what was wanted) but it is
+    reported that Visual C gives an error. The source has been hacked around to
+    avoid this problem.
+
+ 9. On the advice of a Windows user, included <io.h> and <fcntl.h> in Windows
+    builds of pcretest, and changed the call to _setmode() to use _O_BINARY
+    instead of 0x8000. Made all the #ifdefs test both _WIN32 and WIN32 (not all
+    of them did).
+
+10. Originally, pcretest opened its input and output without "b"; then I was
+    told that "b" was needed in some environments, so it was added for release
+    5.0 to both the input and output. (It makes no difference on Unix-like
+    systems.) Later I was told that it is wrong for the input on Windows. I've
+    now abstracted the modes into two macros, to make it easier to fiddle with
+    them, and removed "b" from the input mode under Windows.
+
+11. Added pkgconfig support for the C++ wrapper library, libpcrecpp.
+
+12. Added -help and --help to pcretest as an official way of being reminded
+    of the options.
+
+13. Removed some redundant semicolons after macro calls in pcrecpparg.h.in
+    and pcrecpp.cc because they annoy compilers at high warning levels.
+
+14. A bit of tidying/refactoring in pcre_exec.c in the main bumpalong loop.
+
+15. Fixed an occurrence of == in configure.ac that should have been = (shell
+    scripts are not C programs :-) and which was not noticed because it works
+    on Linux.
+
+16. pcretest is supposed to handle any length of pattern and data line (as one
+    line or as a continued sequence of lines) by extending its input buffer if
+    necessary. This feature was broken for very long pattern lines, leading to
+    a string of junk being passed to pcre_compile() if the pattern was longer
+    than about 50K.
+
+17. I have done a major re-factoring of the way pcre_compile() computes the
+    amount of memory needed for a compiled pattern. Previously, there was code
+    that made a preliminary scan of the pattern in order to do this. That was
+    OK when PCRE was new, but as the facilities have expanded, it has become
+    harder and harder to keep it in step with the real compile phase, and there
+    have been a number of bugs (see for example, 4 above). I have now found a
+    cunning way of running the real compile function in a "fake" mode that
+    enables it to compute how much memory it would need, while actually only
+    ever using a few hundred bytes of working memory and without too many
+    tests of the mode. This should make future maintenance and development
+    easier. A side effect of this work is that the limit of 200 on the nesting
+    depth of parentheses has been removed (though this was never a serious
+    limitation, I suspect). However, there is a downside: pcre_compile() now
+    runs more slowly than before (30% or more, depending on the pattern). I
+    hope this isn't a big issue. There is no effect on runtime performance.
+
+18. Fixed a minor bug in pcretest: if a pattern line was not terminated by a
+    newline (only possible for the last line of a file) and it was a
+    pattern that set a locale (followed by /Lsomething), pcretest crashed.
+
+19. Added additional timing features to pcretest. (1) The -tm option now times
+    matching only, not compiling. (2) Both -t and -tm can be followed, as a
+    separate command line item, by a number that specifies the number of
+    repeats to use when timing. The default is 50000; this gives better
+    precision, but takes uncomfortably long for very large patterns.
+
+20. Extended pcre_study() to be more clever in cases where a branch of a
+    subpattern has no definite first character. For example, (a*|b*)[cd] would
+    previously give no result from pcre_study(). Now it recognizes that the
+    first character must be a, b, c, or d.
+
+21. There was an incorrect error "recursive call could loop indefinitely" if
+    a subpattern (or the entire pattern) that was being tested for matching an
+    empty string contained only one non-empty item after a nested subpattern.
+    For example, the pattern (?>\x{100}*)\d(?R) provoked this error
+    incorrectly, because the \d was being skipped in the check.
+
+22. The pcretest program now has a new pattern option /B and a command line
+    option -b, which is equivalent to adding /B to every pattern. This causes
+    it to show the compiled bytecode, without the additional information that
+    -d shows. The effect of -d is now the same as -b with -i (and similarly, /D
+    is the same as /B/I).
+
+23. A new optimization is now able automatically to treat some sequences such
+    as a*b as a*+b. More specifically, if something simple (such as a character
+    or a simple class like \d) has an unlimited quantifier, and is followed by
+    something that cannot possibly match the quantified thing, the quantifier
+    is automatically "possessified".
+
+24. A recursive reference to a subpattern whose number was greater than 39
+    went wrong under certain circumstances in UTF-8 mode. This bug could also
+    have affected the operation of pcre_study().
+
+25. Realized that a little bit of performance could be had by replacing
+    (c & 0xc0) == 0xc0 with c >= 0xc0 when processing UTF-8 characters.
+
+26. Timing data from pcretest is now shown to 4 decimal places instead of 3.
+
+27. Possessive quantifiers such as a++ were previously implemented by turning
+    them into atomic groups such as ($>a+). Now they have their own opcodes,
+    which improves performance. This includes the automatically created ones
+    from 23 above.
+
+28. A pattern such as (?=(\w+))\1: which simulates an atomic group using a
+    lookahead was broken if it was not anchored. PCRE was mistakenly expecting
+    the first matched character to be a colon. This applied both to named and
+    numbered groups.
+
+29. The ucpinternal.h header file was missing its idempotency #ifdef.
+
+30. I was sent a "project" file called libpcre.a.dev which I understand makes
+    building PCRE on Windows easier, so I have included it in the distribution.
+
+31. There is now a check in pcretest against a ridiculously large number being
+    returned by pcre_exec() or pcre_dfa_exec(). If this happens in a /g or /G
+    loop, the loop is abandoned.
+
+32. Forward references to subpatterns in conditions such as (?(2)...) where
+    subpattern 2 is defined later cause pcre_compile() to search forwards in
+    the pattern for the relevant set of parentheses. This search went wrong
+    when there were unescaped parentheses in a character class, parentheses
+    escaped with \Q...\E, or parentheses in a #-comment in /x mode.
+
+33. "Subroutine" calls and backreferences were previously restricted to
+    referencing subpatterns earlier in the regex. This restriction has now
+    been removed.
+
+34. Added a number of extra features that are going to be in Perl 5.10. On the
+    whole, these are just syntactic alternatives for features that PCRE had
+    previously implemented using the Python syntax or my own invention. The
+    other formats are all retained for compatibility.
+
+    (a) Named groups can now be defined as (?<name>...) or (?'name'...) as well
+        as (?P<name>...). The new forms, as well as being in Perl 5.10, are
+        also .NET compatible.
+
+    (b) A recursion or subroutine call to a named group can now be defined as
+        (?&name) as well as (?P>name).
+
+    (c) A backreference to a named group can now be defined as \k<name> or
+        \k'name' as well as (?P=name). The new forms, as well as being in Perl
+        5.10, are also .NET compatible.
+
+    (d) A conditional reference to a named group can now use the syntax
+        (?(<name>) or (?('name') as well as (?(name).
+
+    (e) A "conditional group" of the form (?(DEFINE)...) can be used to define
+        groups (named and numbered) that are never evaluated inline, but can be
+        called as "subroutines" from elsewhere. In effect, the DEFINE condition
+        is always false. There may be only one alternative in such a group.
+
+    (f) A test for recursion can be given as (?(R1).. or (?(R&name)... as well
+        as the simple (?(R). The condition is true only if the most recent
+        recursion is that of the given number or name. It does not search out
+        through the entire recursion stack.
+
+    (g) The escape \gN or \g{N} has been added, where N is a positive or
+        negative number, specifying an absolute or relative reference.
+
+35. Tidied to get rid of some further signed/unsigned compiler warnings and
+    some "unreachable code" warnings.
+
+36. Updated the Unicode property tables to Unicode version 5.0.0. Amongst other
+    things, this adds five new scripts.
+
+37. Perl ignores orphaned \E escapes completely. PCRE now does the same.
+    There were also incompatibilities regarding the handling of \Q..\E inside
+    character classes, for example with patterns like [\Qa\E-\Qz\E] where the
+    hyphen was adjacent to \Q or \E. I hope I've cleared all this up now.
+
+38. Like Perl, PCRE detects when an indefinitely repeated parenthesized group
+    matches an empty string, and forcibly breaks the loop. There were bugs in
+    this code in non-simple cases. For a pattern such as  ^(a()*)*  matched
+    against  aaaa  the result was just "a" rather than "aaaa", for example. Two
+    separate and independent bugs (that affected different cases) have been
+    fixed.
+
+39. Refactored the code to abolish the use of different opcodes for small
+    capturing bracket numbers. This is a tidy that I avoided doing when I
+    removed the limit on the number of capturing brackets for 3.5 back in 2001.
+    The new approach is not only tidier, it makes it possible to reduce the
+    memory needed to fix the previous bug (38).
+
+40. Implemented PCRE_NEWLINE_ANY to recognize any of the Unicode newline
+    sequences (http://unicode.org/unicode/reports/tr18/) as "newline" when
+    processing dot, circumflex, or dollar metacharacters, or #-comments in /x
+    mode.
+
+41. Add \R to match any Unicode newline sequence, as suggested in the Unicode
+    report.
+
+42. Applied patch, originally from Ari Pollak, modified by Google, to allow
+    copy construction and assignment in the C++ wrapper.
+
+43. Updated pcregrep to support "--newline=any". In the process, I fixed a
+    couple of bugs that could have given wrong results in the "--newline=crlf"
+    case.
+
+44. Added a number of casts and did some reorganization of signed/unsigned int
+    variables following suggestions from Dair Grant. Also renamed the variable
+    "this" as "item" because it is a C++ keyword.
+
+45. Arranged for dftables to add
+
+      #include "pcre_internal.h"
+
+    to pcre_chartables.c because without it, gcc 4.x may remove the array
+    definition from the final binary if PCRE is built into a static library and
+    dead code stripping is activated.
+
+46. For an unanchored pattern, if a match attempt fails at the start of a
+    newline sequence, and the newline setting is CRLF or ANY, and the next two
+    characters are CRLF, advance by two characters instead of one.
+
+
+Version 6.7 04-Jul-06
+---------------------
+
+ 1. In order to handle tests when input lines are enormously long, pcretest has
+    been re-factored so that it automatically extends its buffers when
+    necessary. The code is crude, but this _is_ just a test program. The
+    default size has been increased from 32K to 50K.
+
+ 2. The code in pcre_study() was using the value of the re argument before
+    testing it for NULL. (Of course, in any sensible call of the function, it
+    won't be NULL.)
+
+ 3. The memmove() emulation function in pcre_internal.h, which is used on
+    systems that lack both memmove() and bcopy() - that is, hardly ever -
+    was missing a "static" storage class specifier.
+
+ 4. When UTF-8 mode was not set, PCRE looped when compiling certain patterns
+    containing an extended class (one that cannot be represented by a bitmap
+    because it contains high-valued characters or Unicode property items, e.g.
+    [\pZ]). Almost always one would set UTF-8 mode when processing such a
+    pattern, but PCRE should not loop if you do not (it no longer does).
+    [Detail: two cases were found: (a) a repeated subpattern containing an
+    extended class; (b) a recursive reference to a subpattern that followed a
+    previous extended class. It wasn't skipping over the extended class
+    correctly when UTF-8 mode was not set.]
+
+ 5. A negated single-character class was not being recognized as fixed-length
+    in lookbehind assertions such as (?<=[^f]), leading to an incorrect
+    compile error "lookbehind assertion is not fixed length".
+
+ 6. The RunPerlTest auxiliary script was showing an unexpected difference
+    between PCRE and Perl for UTF-8 tests. It turns out that it is hard to
+    write a Perl script that can interpret lines of an input file either as
+    byte characters or as UTF-8, which is what "perltest" was being required to
+    do for the non-UTF-8 and UTF-8 tests, respectively. Essentially what you
+    can't do is switch easily at run time between having the "use utf8;" pragma
+    or not. In the end, I fudged it by using the RunPerlTest script to insert
+    "use utf8;" explicitly for the UTF-8 tests.
+
+ 7. In multiline (/m) mode, PCRE was matching ^ after a terminating newline at
+    the end of the subject string, contrary to the documentation and to what
+    Perl does. This was true of both matching functions. Now it matches only at
+    the start of the subject and immediately after *internal* newlines.
+
+ 8. A call of pcre_fullinfo() from pcretest to get the option bits was passing
+    a pointer to an int instead of a pointer to an unsigned long int. This
+    caused problems on 64-bit systems.
+
+ 9. Applied a patch from the folks at Google to pcrecpp.cc, to fix "another
+    instance of the 'standard' template library not being so standard".
+
+10. There was no check on the number of named subpatterns nor the maximum
+    length of a subpattern name. The product of these values is used to compute
+    the size of the memory block for a compiled pattern. By supplying a very
+    long subpattern name and a large number of named subpatterns, the size
+    computation could be caused to overflow. This is now prevented by limiting
+    the length of names to 32 characters, and the number of named subpatterns
+    to 10,000.
+
+11. Subpatterns that are repeated with specific counts have to be replicated in
+    the compiled pattern. The size of memory for this was computed from the
+    length of the subpattern and the repeat count. The latter is limited to
+    65535, but there was no limit on the former, meaning that integer overflow
+    could in principle occur. The compiled length of a repeated subpattern is
+    now limited to 30,000 bytes in order to prevent this.
+
+12. Added the optional facility to have named substrings with the same name.
+
+13. Added the ability to use a named substring as a condition, using the
+    Python syntax: (?(name)yes|no). This overloads (?(R)... and names that
+    are numbers (not recommended). Forward references are permitted.
+
+14. Added forward references in named backreferences (if you see what I mean).
+
+15. In UTF-8 mode, with the PCRE_DOTALL option set, a quantified dot in the
+    pattern could run off the end of the subject. For example, the pattern
+    "(?s)(.{1,5})"8 did this with the subject "ab".
+
+16. If PCRE_DOTALL or PCRE_MULTILINE were set, pcre_dfa_exec() behaved as if
+    PCRE_CASELESS was set when matching characters that were quantified with ?
+    or *.
+
+17. A character class other than a single negated character that had a minimum
+    but no maximum quantifier - for example [ab]{6,} - was not handled
+    correctly by pce_dfa_exec(). It would match only one character.
+
+18. A valid (though odd) pattern that looked like a POSIX character
+    class but used an invalid character after [ (for example [[,abc,]]) caused
+    pcre_compile() to give the error "Failed: internal error: code overflow" or
+    in some cases to crash with a glibc free() error. This could even happen if
+    the pattern terminated after [[ but there just happened to be a sequence of
+    letters, a binary zero, and a closing ] in the memory that followed.
+
+19. Perl's treatment of octal escapes in the range \400 to \777 has changed
+    over the years. Originally (before any Unicode support), just the bottom 8
+    bits were taken. Thus, for example, \500 really meant \100. Nowadays the
+    output from "man perlunicode" includes this:
+
+      The regular expression compiler produces polymorphic opcodes.  That
+      is, the pattern adapts to the data and automatically switches to
+      the Unicode character scheme when presented with Unicode data--or
+      instead uses a traditional byte scheme when presented with byte
+      data.
+
+    Sadly, a wide octal escape does not cause a switch, and in a string with
+    no other multibyte characters, these octal escapes are treated as before.
+    Thus, in Perl, the pattern  /\500/ actually matches \100 but the pattern
+    /\500|\x{1ff}/ matches \500 or \777 because the whole thing is treated as a
+    Unicode string.
+
+    I have not perpetrated such confusion in PCRE. Up till now, it took just
+    the bottom 8 bits, as in old Perl. I have now made octal escapes with
+    values greater than \377 illegal in non-UTF-8 mode. In UTF-8 mode they
+    translate to the appropriate multibyte character.
+
+29. Applied some refactoring to reduce the number of warnings from Microsoft
+    and Borland compilers. This has included removing the fudge introduced
+    seven years ago for the OS/2 compiler (see 2.02/2 below) because it caused
+    a warning about an unused variable.
+
+21. PCRE has not included VT (character 0x0b) in the set of whitespace
+    characters since release 4.0, because Perl (from release 5.004) does not.
+    [Or at least, is documented not to: some releases seem to be in conflict
+    with the documentation.] However, when a pattern was studied with
+    pcre_study() and all its branches started with \s, PCRE still included VT
+    as a possible starting character. Of course, this did no harm; it just
+    caused an unnecessary match attempt.
+
+22. Removed a now-redundant internal flag bit that recorded the fact that case
+    dependency changed within the pattern. This was once needed for "required
+    byte" processing, but is no longer used. This recovers a now-scarce options
+    bit. Also moved the least significant internal flag bit to the most-
+    significant bit of the word, which was not previously used (hangover from
+    the days when it was an int rather than a uint) to free up another bit for
+    the future.
+
+23. Added support for CRLF line endings as well as CR and LF. As well as the
+    default being selectable at build time, it can now be changed at runtime
+    via the PCRE_NEWLINE_xxx flags. There are now options for pcregrep to
+    specify that it is scanning data with non-default line endings.
+
+24. Changed the definition of CXXLINK to make it agree with the definition of
+    LINK in the Makefile, by replacing LDFLAGS to CXXFLAGS.
+
+25. Applied Ian Taylor's patches to avoid using another stack frame for tail
+    recursions. This makes a big different to stack usage for some patterns.
+
+26. If a subpattern containing a named recursion or subroutine reference such
+    as (?P>B) was quantified, for example (xxx(?P>B)){3}, the calculation of
+    the space required for the compiled pattern went wrong and gave too small a
+    value. Depending on the environment, this could lead to "Failed: internal
+    error: code overflow at offset 49" or "glibc detected double free or
+    corruption" errors.
+
+27. Applied patches from Google (a) to support the new newline modes and (b) to
+    advance over multibyte UTF-8 characters in GlobalReplace.
+
+28. Change free() to pcre_free() in pcredemo.c. Apparently this makes a
+    difference for some implementation of PCRE in some Windows version.
+
+29. Added some extra testing facilities to pcretest:
+
+    \q<number>   in a data line sets the "match limit" value
+    \Q<number>   in a data line sets the "match recursion limt" value
+    -S <number>  sets the stack size, where <number> is in megabytes
+
+    The -S option isn't available for Windows.
+
+
+Version 6.6 06-Feb-06
+---------------------
+
+ 1. Change 16(a) for 6.5 broke things, because PCRE_DATA_SCOPE was not defined
+    in pcreposix.h. I have copied the definition from pcre.h.
+
+ 2. Change 25 for 6.5 broke compilation in a build directory out-of-tree
+    because pcre.h is no longer a built file.
+
+ 3. Added Jeff Friedl's additional debugging patches to pcregrep. These are
+    not normally included in the compiled code.
+
+
+Version 6.5 01-Feb-06
+---------------------
+
+ 1. When using the partial match feature with pcre_dfa_exec(), it was not
+    anchoring the second and subsequent partial matches at the new starting
+    point. This could lead to incorrect results. For example, with the pattern
+    /1234/, partially matching against "123" and then "a4" gave a match.
+
+ 2. Changes to pcregrep:
+
+    (a) All non-match returns from pcre_exec() were being treated as failures
+        to match the line. Now, unless the error is PCRE_ERROR_NOMATCH, an
+        error message is output. Some extra information is given for the
+        PCRE_ERROR_MATCHLIMIT and PCRE_ERROR_RECURSIONLIMIT errors, which are
+        probably the only errors that are likely to be caused by users (by
+        specifying a regex that has nested indefinite repeats, for instance).
+        If there are more than 20 of these errors, pcregrep is abandoned.
+
+    (b) A binary zero was treated as data while matching, but terminated the
+        output line if it was written out. This has been fixed: binary zeroes
+        are now no different to any other data bytes.
+
+    (c) Whichever of the LC_ALL or LC_CTYPE environment variables is set is
+        used to set a locale for matching. The --locale=xxxx long option has
+        been added (no short equivalent) to specify a locale explicitly on the
+        pcregrep command, overriding the environment variables.
+
+    (d) When -B was used with -n, some line numbers in the output were one less
+        than they should have been.
+
+    (e) Added the -o (--only-matching) option.
+
+    (f) If -A or -C was used with -c (count only), some lines of context were
+        accidentally printed for the final match.
+
+    (g) Added the -H (--with-filename) option.
+
+    (h) The combination of options -rh failed to suppress file names for files
+        that were found from directory arguments.
+
+    (i) Added the -D (--devices) and -d (--directories) options.
+
+    (j) Added the -F (--fixed-strings) option.
+
+    (k) Allow "-" to be used as a file name for -f as well as for a data file.
+
+    (l) Added the --colo(u)r option.
+
+    (m) Added Jeffrey Friedl's -S testing option, but within #ifdefs so that it
+        is not present by default.
+
+ 3. A nasty bug was discovered in the handling of recursive patterns, that is,
+    items such as (?R) or (?1), when the recursion could match a number of
+    alternatives. If it matched one of the alternatives, but subsequently,
+    outside the recursion, there was a failure, the code tried to back up into
+    the recursion. However, because of the way PCRE is implemented, this is not
+    possible, and the result was an incorrect result from the match.
+
+    In order to prevent this happening, the specification of recursion has
+    been changed so that all such subpatterns are automatically treated as
+    atomic groups. Thus, for example, (?R) is treated as if it were (?>(?R)).
+
+ 4. I had overlooked the fact that, in some locales, there are characters for
+    which isalpha() is true but neither isupper() nor islower() are true. In
+    the fr_FR locale, for instance, the \xAA and \xBA characters (ordmasculine
+    and ordfeminine) are like this. This affected the treatment of \w and \W
+    when they appeared in character classes, but not when they appeared outside
+    a character class. The bit map for "word" characters is now created
+    separately from the results of isalnum() instead of just taking it from the
+    upper, lower, and digit maps. (Plus the underscore character, of course.)
+
+ 5. The above bug also affected the handling of POSIX character classes such as
+    [[:alpha:]] and [[:alnum:]]. These do not have their own bit maps in PCRE's
+    permanent tables. Instead, the bit maps for such a class were previously
+    created as the appropriate unions of the upper, lower, and digit bitmaps.
+    Now they are created by subtraction from the [[:word:]] class, which has
+    its own bitmap.
+
+ 6. The [[:blank:]] character class matches horizontal, but not vertical space.
+    It is created by subtracting the vertical space characters (\x09, \x0a,
+    \x0b, \x0c) from the [[:space:]] bitmap. Previously, however, the
+    subtraction was done in the overall bitmap for a character class, meaning
+    that a class such as [\x0c[:blank:]] was incorrect because \x0c would not
+    be recognized. This bug has been fixed.
+
+ 7. Patches from the folks at Google:
+
+      (a) pcrecpp.cc: "to handle a corner case that may or may not happen in
+      real life, but is still worth protecting against".
+
+      (b) pcrecpp.cc: "corrects a bug when negative radixes are used with
+      regular expressions".
+
+      (c) pcre_scanner.cc: avoid use of std::count() because not all systems
+      have it.
+
+      (d) Split off pcrecpparg.h from pcrecpp.h and had the former built by
+      "configure" and the latter not, in order to fix a problem somebody had
+      with compiling the Arg class on HP-UX.
+
+      (e) Improve the error-handling of the C++ wrapper a little bit.
+
+      (f) New tests for checking recursion limiting.
+
+ 8. The pcre_memmove() function, which is used only if the environment does not
+    have a standard memmove() function (and is therefore rarely compiled),
+    contained two bugs: (a) use of int instead of size_t, and (b) it was not
+    returning a result (though PCRE never actually uses the result).
+
+ 9. In the POSIX regexec() interface, if nmatch is specified as a ridiculously
+    large number - greater than INT_MAX/(3*sizeof(int)) - REG_ESPACE is
+    returned instead of calling malloc() with an overflowing number that would
+    most likely cause subsequent chaos.
+
+10. The debugging option of pcretest was not showing the NO_AUTO_CAPTURE flag.
+
+11. The POSIX flag REG_NOSUB is now supported. When a pattern that was compiled
+    with this option is matched, the nmatch and pmatch options of regexec() are
+    ignored.
+
+12. Added REG_UTF8 to the POSIX interface. This is not defined by POSIX, but is
+    provided in case anyone wants to the the POSIX interface with UTF-8
+    strings.
+
+13. Added CXXLDFLAGS to the Makefile parameters to provide settings only on the
+    C++ linking (needed for some HP-UX environments).
+
+14. Avoid compiler warnings in get_ucpname() when compiled without UCP support
+    (unused parameter) and in the pcre_printint() function (omitted "default"
+    switch label when the default is to do nothing).
+
+15. Added some code to make it possible, when PCRE is compiled as a C++
+    library, to replace subject pointers for pcre_exec() with a smart pointer
+    class, thus making it possible to process discontinuous strings.
+
+16. The two macros PCRE_EXPORT and PCRE_DATA_SCOPE are confusing, and perform
+    much the same function. They were added by different people who were trying
+    to make PCRE easy to compile on non-Unix systems. It has been suggested
+    that PCRE_EXPORT be abolished now that there is more automatic apparatus
+    for compiling on Windows systems. I have therefore replaced it with
+    PCRE_DATA_SCOPE. This is set automatically for Windows; if not set it
+    defaults to "extern" for C or "extern C" for C++, which works fine on
+    Unix-like systems. It is now possible to override the value of PCRE_DATA_
+    SCOPE with something explicit in config.h. In addition:
+
+    (a) pcreposix.h still had just "extern" instead of either of these macros;
+        I have replaced it with PCRE_DATA_SCOPE.
+
+    (b) Functions such as _pcre_xclass(), which are internal to the library,
+        but external in the C sense, all had PCRE_EXPORT in their definitions.
+        This is apparently wrong for the Windows case, so I have removed it.
+        (It makes no difference on Unix-like systems.)
+
+17. Added a new limit, MATCH_LIMIT_RECURSION, which limits the depth of nesting
+    of recursive calls to match(). This is different to MATCH_LIMIT because
+    that limits the total number of calls to match(), not all of which increase
+    the depth of recursion. Limiting the recursion depth limits the amount of
+    stack (or heap if NO_RECURSE is set) that is used. The default can be set
+    when PCRE is compiled, and changed at run time. A patch from Google adds
+    this functionality to the C++ interface.
+
+18. Changes to the handling of Unicode character properties:
+
+    (a) Updated the table to Unicode 4.1.0.
+
+    (b) Recognize characters that are not in the table as "Cn" (undefined).
+
+    (c) I revised the way the table is implemented to a much improved format
+        which includes recognition of ranges. It now supports the ranges that
+        are defined in UnicodeData.txt, and it also amalgamates other
+        characters into ranges. This has reduced the number of entries in the
+        table from around 16,000 to around 3,000, thus reducing its size
+        considerably. I realized I did not need to use a tree structure after
+        all - a binary chop search is just as efficient. Having reduced the
+        number of entries, I extended their size from 6 bytes to 8 bytes to
+        allow for more data.
+
+    (d) Added support for Unicode script names via properties such as \p{Han}.
+
+19. In UTF-8 mode, a backslash followed by a non-Ascii character was not
+    matching that character.
+
+20. When matching a repeated Unicode property with a minimum greater than zero,
+    (for example \pL{2,}), PCRE could look past the end of the subject if it
+    reached it while seeking the minimum number of characters. This could
+    happen only if some of the characters were more than one byte long, because
+    there is a check for at least the minimum number of bytes.
+
+21. Refactored the implementation of \p and \P so as to be more general, to
+    allow for more different types of property in future. This has changed the
+    compiled form incompatibly. Anybody with saved compiled patterns that use
+    \p or \P will have to recompile them.
+
+22. Added "Any" and "L&" to the supported property types.
+
+23. Recognize \x{...} as a code point specifier, even when not in UTF-8 mode,
+    but give a compile time error if the value is greater than 0xff.
+
+24. The man pages for pcrepartial, pcreprecompile, and pcre_compile2 were
+    accidentally not being installed or uninstalled.
+
+25. The pcre.h file was built from pcre.h.in, but the only changes that were
+    made were to insert the current release number. This seemed silly, because
+    it made things harder for people building PCRE on systems that don't run
+    "configure". I have turned pcre.h into a distributed file, no longer built
+    by "configure", with the version identification directly included. There is
+    no longer a pcre.h.in file.
+
+    However, this change necessitated a change to the pcre-config script as
+    well. It is built from pcre-config.in, and one of the substitutions was the
+    release number. I have updated configure.ac so that ./configure now finds
+    the release number by grepping pcre.h.
+
+26. Added the ability to run the tests under valgrind.
+
+
+Version 6.4 05-Sep-05
+---------------------
+
+ 1. Change 6.0/10/(l) to pcregrep introduced a bug that caused separator lines
+    "--" to be printed when multiple files were scanned, even when none of the
+    -A, -B, or -C options were used. This is not compatible with Gnu grep, so I
+    consider it to be a bug, and have restored the previous behaviour.
+
+ 2. A couple of code tidies to get rid of compiler warnings.
+
+ 3. The pcretest program used to cheat by referring to symbols in the library
+    whose names begin with _pcre_. These are internal symbols that are not
+    really supposed to be visible externally, and in some environments it is
+    possible to suppress them. The cheating is now confined to including
+    certain files from the library's source, which is a bit cleaner.
+
+ 4. Renamed pcre.in as pcre.h.in to go with pcrecpp.h.in; it also makes the
+    file's purpose clearer.
+
+ 5. Reorganized pcre_ucp_findchar().
+
+
+Version 6.3 15-Aug-05
+---------------------
+
+ 1. The file libpcre.pc.in did not have general read permission in the tarball.
+
+ 2. There were some problems when building without C++ support:
+
+    (a) If C++ support was not built, "make install" and "make test" still
+        tried to test it.
+
+    (b) There were problems when the value of CXX was explicitly set. Some
+        changes have been made to try to fix these, and ...
+
+    (c) --disable-cpp can now be used to explicitly disable C++ support.
+
+    (d) The use of @CPP_OBJ@ directly caused a blank line preceded by a
+        backslash in a target when C++ was disabled. This confuses some
+        versions of "make", apparently. Using an intermediate variable solves
+        this. (Same for CPP_LOBJ.)
+
+ 3. $(LINK_FOR_BUILD) now includes $(CFLAGS_FOR_BUILD) and $(LINK)
+    (non-Windows) now includes $(CFLAGS) because these flags are sometimes
+    necessary on certain architectures.
+
+ 4. Added a setting of -export-symbols-regex to the link command to remove
+    those symbols that are exported in the C sense, but actually are local
+    within the library, and not documented. Their names all begin with
+    "_pcre_". This is not a perfect job, because (a) we have to except some
+    symbols that pcretest ("illegally") uses, and (b) the facility isn't always
+    available (and never for static libraries). I have made a note to try to
+    find a way round (a) in the future.
+
+
+Version 6.2 01-Aug-05
+---------------------
+
+ 1. There was no test for integer overflow of quantifier values. A construction
+    such as {1111111111111111} would give undefined results. What is worse, if
+    a minimum quantifier for a parenthesized subpattern overflowed and became
+    negative, the calculation of the memory size went wrong. This could have
+    led to memory overwriting.
+
+ 2. Building PCRE using VPATH was broken. Hopefully it is now fixed.
+
+ 3. Added "b" to the 2nd argument of fopen() in dftables.c, for non-Unix-like
+    operating environments where this matters.
+
+ 4. Applied Giuseppe Maxia's patch to add additional features for controlling
+    PCRE options from within the C++ wrapper.
+
+ 5. Named capturing subpatterns were not being correctly counted when a pattern
+    was compiled. This caused two problems: (a) If there were more than 100
+    such subpatterns, the calculation of the memory needed for the whole
+    compiled pattern went wrong, leading to an overflow error. (b) Numerical
+    back references of the form \12, where the number was greater than 9, were
+    not recognized as back references, even though there were sufficient
+    previous subpatterns.
+
+ 6. Two minor patches to pcrecpp.cc in order to allow it to compile on older
+    versions of gcc, e.g. 2.95.4.
+
+
+Version 6.1 21-Jun-05
+---------------------
+
+ 1. There was one reference to the variable "posix" in pcretest.c that was not
+    surrounded by "#if !defined NOPOSIX".
+
+ 2. Make it possible to compile pcretest without DFA support, UTF8 support, or
+    the cross-check on the old pcre_info() function, for the benefit of the
+    cut-down version of PCRE that is currently imported into Exim.
+
+ 3. A (silly) pattern starting with (?i)(?-i) caused an internal space
+    allocation error. I've done the easy fix, which wastes 2 bytes for sensible
+    patterns that start (?i) but I don't think that matters. The use of (?i) is
+    just an example; this all applies to the other options as well.
+
+ 4. Since libtool seems to echo the compile commands it is issuing, the output
+    from "make" can be reduced a bit by putting "@" in front of each libtool
+    compile command.
+
+ 5. Patch from the folks at Google for configure.in to be a bit more thorough
+    in checking for a suitable C++ installation before trying to compile the
+    C++ stuff. This should fix a reported problem when a compiler was present,
+    but no suitable headers.
+
+ 6. The man pages all had just "PCRE" as their title. I have changed them to
+    be the relevant file name. I have also arranged that these names are
+    retained in the file doc/pcre.txt, which is a concatenation in text format
+    of all the man pages except the little individual ones for each function.
+
+ 7. The NON-UNIX-USE file had not been updated for the different set of source
+    files that come with release 6. I also added a few comments about the C++
+    wrapper.
+
+
+Version 6.0 07-Jun-05
+---------------------
+
+ 1. Some minor internal re-organization to help with my DFA experiments.
+
+ 2. Some missing #ifdef SUPPORT_UCP conditionals in pcretest and printint that
+    didn't matter for the library itself when fully configured, but did matter
+    when compiling without UCP support, or within Exim, where the ucp files are
+    not imported.
+
+ 3. Refactoring of the library code to split up the various functions into
+    different source modules. The addition of the new DFA matching code (see
+    below) to a single monolithic source would have made it really too
+    unwieldy, quite apart from causing all the code to be include in a
+    statically linked application, when only some functions are used. This is
+    relevant even without the DFA addition now that patterns can be compiled in
+    one application and matched in another.
+
+    The downside of splitting up is that there have to be some external
+    functions and data tables that are used internally in different modules of
+    the library but which are not part of the API. These have all had their
+    names changed to start with "_pcre_" so that they are unlikely to clash
+    with other external names.
+
+ 4. Added an alternate matching function, pcre_dfa_exec(), which matches using
+    a different (DFA) algorithm. Although it is slower than the original
+    function, it does have some advantages for certain types of matching
+    problem.
+
+ 5. Upgrades to pcretest in order to test the features of pcre_dfa_exec(),
+    including restarting after a partial match.
+
+ 6. A patch for pcregrep that defines INVALID_FILE_ATTRIBUTES if it is not
+    defined when compiling for Windows was sent to me. I have put it into the
+    code, though I have no means of testing or verifying it.
+
+ 7. Added the pcre_refcount() auxiliary function.
+
+ 8. Added the PCRE_FIRSTLINE option. This constrains an unanchored pattern to
+    match before or at the first newline in the subject string. In pcretest,
+    the /f option on a pattern can be used to set this.
+
+ 9. A repeated \w when used in UTF-8 mode with characters greater than 256
+    would behave wrongly. This has been present in PCRE since release 4.0.
+
+10. A number of changes to the pcregrep command:
+
+    (a) Refactored how -x works; insert ^(...)$ instead of setting
+        PCRE_ANCHORED and checking the length, in preparation for adding
+        something similar for -w.
+
+    (b) Added the -w (match as a word) option.
+
+    (c) Refactored the way lines are read and buffered so as to have more
+        than one at a time available.
+
+    (d) Implemented a pcregrep test script.
+
+    (e) Added the -M (multiline match) option. This allows patterns to match
+        over several lines of the subject. The buffering ensures that at least
+        8K, or the rest of the document (whichever is the shorter) is available
+        for matching (and similarly the previous 8K for lookbehind assertions).
+
+    (f) Changed the --help output so that it now says
+
+          -w, --word-regex(p)
+
+        instead of two lines, one with "regex" and the other with "regexp"
+        because that confused at least one person since the short forms are the
+        same. (This required a bit of code, as the output is generated
+        automatically from a table. It wasn't just a text change.)
+
+    (g) -- can be used to terminate pcregrep options if the next thing isn't an
+        option but starts with a hyphen. Could be a pattern or a path name
+        starting with a hyphen, for instance.
+
+    (h) "-" can be given as a file name to represent stdin.
+
+    (i) When file names are being printed, "(standard input)" is used for
+        the standard input, for compatibility with GNU grep. Previously
+        "<stdin>" was used.
+
+    (j) The option --label=xxx can be used to supply a name to be used for
+        stdin when file names are being printed. There is no short form.
+
+    (k) Re-factored the options decoding logic because we are going to add
+        two more options that take data. Such options can now be given in four
+        different ways, e.g. "-fname", "-f name", "--file=name", "--file name".
+
+    (l) Added the -A, -B, and -C options for requesting that lines of context
+        around matches be printed.
+
+    (m) Added the -L option to print the names of files that do not contain
+        any matching lines, that is, the complement of -l.
+
+    (n) The return code is 2 if any file cannot be opened, but pcregrep does
+        continue to scan other files.
+
+    (o) The -s option was incorrectly implemented. For compatibility with other
+        greps, it now suppresses the error message for a non-existent or non-
+        accessible file (but not the return code). There is a new option called
+        -q that suppresses the output of matching lines, which was what -s was
+        previously doing.
+
+    (p) Added --include and --exclude options to specify files for inclusion
+        and exclusion when recursing.
+
+11. The Makefile was not using the Autoconf-supported LDFLAGS macro properly.
+    Hopefully, it now does.
+
+12. Missing cast in pcre_study().
+
+13. Added an "uninstall" target to the makefile.
+
+14. Replaced "extern" in the function prototypes in Makefile.in with
+    "PCRE_DATA_SCOPE", which defaults to 'extern' or 'extern "C"' in the Unix
+    world, but is set differently for Windows.
+
+15. Added a second compiling function called pcre_compile2(). The only
+    difference is that it has an extra argument, which is a pointer to an
+    integer error code. When there is a compile-time failure, this is set
+    non-zero, in addition to the error test pointer being set to point to an
+    error message. The new argument may be NULL if no error number is required
+    (but then you may as well call pcre_compile(), which is now just a
+    wrapper). This facility is provided because some applications need a
+    numeric error indication, but it has also enabled me to tidy up the way
+    compile-time errors are handled in the POSIX wrapper.
+
+16. Added VPATH=.libs to the makefile; this should help when building with one
+    prefix path and installing with another. (Or so I'm told by someone who
+    knows more about this stuff than I do.)
+
+17. Added a new option, REG_DOTALL, to the POSIX function regcomp(). This
+    passes PCRE_DOTALL to the pcre_compile() function, making the "." character
+    match everything, including newlines. This is not POSIX-compatible, but
+    somebody wanted the feature. From pcretest it can be activated by using
+    both the P and the s flags.
+
+18. AC_PROG_LIBTOOL appeared twice in Makefile.in. Removed one.
+
+19. libpcre.pc was being incorrectly installed as executable.
+
+20. A couple of places in pcretest check for end-of-line by looking for '\n';
+    it now also looks for '\r' so that it will work unmodified on Windows.
+
+21. Added Google's contributed C++ wrapper to the distribution.
+
+22. Added some untidy missing memory free() calls in pcretest, to keep
+    Electric Fence happy when testing.
+
+
+
+Version 5.0 13-Sep-04
+---------------------
+
+ 1. Internal change: literal characters are no longer packed up into items
+    containing multiple characters in a single byte-string. Each character
+    is now matched using a separate opcode. However, there may be more than one
+    byte in the character in UTF-8 mode.
+
+ 2. The pcre_callout_block structure has two new fields: pattern_position and
+    next_item_length. These contain the offset in the pattern to the next match
+    item, and its length, respectively.
+
+ 3. The PCRE_AUTO_CALLOUT option for pcre_compile() requests the automatic
+    insertion of callouts before each pattern item. Added the /C option to
+    pcretest to make use of this.
+
+ 4. On the advice of a Windows user, the lines
+
+      #if defined(_WIN32) || defined(WIN32)
+      _setmode( _fileno( stdout ), 0x8000 );
+      #endif  /* defined(_WIN32) || defined(WIN32) */
+
+    have been added to the source of pcretest. This apparently does useful
+    magic in relation to line terminators.
+
+ 5. Changed "r" and "w" in the calls to fopen() in pcretest to "rb" and "wb"
+    for the benefit of those environments where the "b" makes a difference.
+
+ 6. The icc compiler has the same options as gcc, but "configure" doesn't seem
+    to know about it. I have put a hack into configure.in that adds in code
+    to set GCC=yes if CC=icc. This seems to end up at a point in the
+    generated configure script that is early enough to affect the setting of
+    compiler options, which is what is needed, but I have no means of testing
+    whether it really works. (The user who reported this had patched the
+    generated configure script, which of course I cannot do.)
+
+    LATER: After change 22 below (new libtool files), the configure script
+    seems to know about icc (and also ecc). Therefore, I have commented out
+    this hack in configure.in.
+
+ 7. Added support for pkg-config (2 patches were sent in).
+
+ 8. Negated POSIX character classes that used a combination of internal tables
+    were completely broken. These were [[:^alpha:]], [[:^alnum:]], and
+    [[:^ascii]]. Typically, they would match almost any characters. The other
+    POSIX classes were not broken in this way.
+
+ 9. Matching the pattern "\b.*?" against "ab cd", starting at offset 1, failed
+    to find the match, as PCRE was deluded into thinking that the match had to
+    start at the start point or following a newline. The same bug applied to
+    patterns with negative forward assertions or any backward assertions
+    preceding ".*" at the start, unless the pattern required a fixed first
+    character. This was a failing pattern: "(?!.bcd).*". The bug is now fixed.
+
+10. In UTF-8 mode, when moving forwards in the subject after a failed match
+    starting at the last subject character, bytes beyond the end of the subject
+    string were read.
+
+11. Renamed the variable "class" as "classbits" to make life easier for C++
+    users. (Previously there was a macro definition, but it apparently wasn't
+    enough.)
+
+12. Added the new field "tables" to the extra data so that tables can be passed
+    in at exec time, or the internal tables can be re-selected. This allows
+    a compiled regex to be saved and re-used at a later time by a different
+    program that might have everything at different addresses.
+
+13. Modified the pcre-config script so that, when run on Solaris, it shows a
+    -R library as well as a -L library.
+
+14. The debugging options of pcretest (-d on the command line or D on a
+    pattern) showed incorrect output for anything following an extended class
+    that contained multibyte characters and which was followed by a quantifier.
+
+15. Added optional support for general category Unicode character properties
+    via the \p, \P, and \X escapes. Unicode property support implies UTF-8
+    support. It adds about 90K to the size of the library. The meanings of the
+    inbuilt class escapes such as \d and \s have NOT been changed.
+
+16. Updated pcredemo.c to include calls to free() to release the memory for the
+    compiled pattern.
+
+17. The generated file chartables.c was being created in the source directory
+    instead of in the building directory. This caused the build to fail if the
+    source directory was different from the building directory, and was
+    read-only.
+
+18. Added some sample Win commands from Mark Tetrode into the NON-UNIX-USE
+    file. No doubt somebody will tell me if they don't make sense... Also added
+    Dan Mooney's comments about building on OpenVMS.
+
+19. Added support for partial matching via the PCRE_PARTIAL option for
+    pcre_exec() and the \P data escape in pcretest.
+
+20. Extended pcretest with 3 new pattern features:
+
+    (i)   A pattern option of the form ">rest-of-line" causes pcretest to
+          write the compiled pattern to the file whose name is "rest-of-line".
+          This is a straight binary dump of the data, with the saved pointer to
+          the character tables forced to be NULL. The study data, if any, is
+          written too. After writing, pcretest reads a new pattern.
+
+    (ii)  If, instead of a pattern, "<rest-of-line" is given, pcretest reads a
+          compiled pattern from the given file. There must not be any
+          occurrences of "<" in the file name (pretty unlikely); if there are,
+          pcretest will instead treat the initial "<" as a pattern delimiter.
+          After reading in the pattern, pcretest goes on to read data lines as
+          usual.
+
+    (iii) The F pattern option causes pcretest to flip the bytes in the 32-bit
+          and 16-bit fields in a compiled pattern, to simulate a pattern that
+          was compiled on a host of opposite endianness.
+
+21. The pcre-exec() function can now cope with patterns that were compiled on
+    hosts of opposite endianness, with this restriction:
+
+      As for any compiled expression that is saved and used later, the tables
+      pointer field cannot be preserved; the extra_data field in the arguments
+      to pcre_exec() should be used to pass in a tables address if a value
+      other than the default internal tables were used at compile time.
+
+22. Calling pcre_exec() with a negative value of the "ovecsize" parameter is
+    now diagnosed as an error. Previously, most of the time, a negative number
+    would have been treated as zero, but if in addition "ovector" was passed as
+    NULL, a crash could occur.
+
+23. Updated the files ltmain.sh, config.sub, config.guess, and aclocal.m4 with
+    new versions from the libtool 1.5 distribution (the last one is a copy of
+    a file called libtool.m4). This seems to have fixed the need to patch
+    "configure" to support Darwin 1.3 (which I used to do). However, I still
+    had to patch ltmain.sh to ensure that ${SED} is set (it isn't on my
+    workstation).
+
+24. Changed the PCRE licence to be the more standard "BSD" licence.
+
+
+Version 4.5 01-Dec-03
+---------------------
+
+ 1. There has been some re-arrangement of the code for the match() function so
+    that it can be compiled in a version that does not call itself recursively.
+    Instead, it keeps those local variables that need separate instances for
+    each "recursion" in a frame on the heap, and gets/frees frames whenever it
+    needs to "recurse". Keeping track of where control must go is done by means
+    of setjmp/longjmp. The whole thing is implemented by a set of macros that
+    hide most of the details from the main code, and operates only if
+    NO_RECURSE is defined while compiling pcre.c. If PCRE is built using the
+    "configure" mechanism, "--disable-stack-for-recursion" turns on this way of
+    operating.
+
+    To make it easier for callers to provide specially tailored get/free
+    functions for this usage, two new functions, pcre_stack_malloc, and
+    pcre_stack_free, are used. They are always called in strict stacking order,
+    and the size of block requested is always the same.
+
+    The PCRE_CONFIG_STACKRECURSE info parameter can be used to find out whether
+    PCRE has been compiled to use the stack or the heap for recursion. The
+    -C option of pcretest uses this to show which version is compiled.
+
+    A new data escape \S, is added to pcretest; it causes the amounts of store
+    obtained and freed by both kinds of malloc/free at match time to be added
+    to the output.
+
+ 2. Changed the locale test to use "fr_FR" instead of "fr" because that's
+    what's available on my current Linux desktop machine.
+
+ 3. When matching a UTF-8 string, the test for a valid string at the start has
+    been extended. If start_offset is not zero, PCRE now checks that it points
+    to a byte that is the start of a UTF-8 character. If not, it returns
+    PCRE_ERROR_BADUTF8_OFFSET (-11). Note: the whole string is still checked;
+    this is necessary because there may be backward assertions in the pattern.
+    When matching the same subject several times, it may save resources to use
+    PCRE_NO_UTF8_CHECK on all but the first call if the string is long.
+
+ 4. The code for checking the validity of UTF-8 strings has been tightened so
+    that it rejects (a) strings containing 0xfe or 0xff bytes and (b) strings
+    containing "overlong sequences".
+
+ 5. Fixed a bug (appearing twice) that I could not find any way of exploiting!
+    I had written "if ((digitab[*p++] && chtab_digit) == 0)" where the "&&"
+    should have been "&", but it just so happened that all the cases this let
+    through by mistake were picked up later in the function.
+
+ 6. I had used a variable called "isblank" - this is a C99 function, causing
+    some compilers to warn. To avoid this, I renamed it (as "blankclass").
+
+ 7. Cosmetic: (a) only output another newline at the end of pcretest if it is
+    prompting; (b) run "./pcretest /dev/null" at the start of the test script
+    so the version is shown; (c) stop "make test" echoing "./RunTest".
+
+ 8. Added patches from David Burgess to enable PCRE to run on EBCDIC systems.
+
+ 9. The prototype for memmove() for systems that don't have it was using
+    size_t, but the inclusion of the header that defines size_t was later. I've
+    moved the #includes for the C headers earlier to avoid this.
+
+10. Added some adjustments to the code to make it easier to compiler on certain
+    special systems:
+
+      (a) Some "const" qualifiers were missing.
+      (b) Added the macro EXPORT before all exported functions; by default this
+          is defined to be empty.
+      (c) Changed the dftables auxiliary program (that builds chartables.c) so
+          that it reads its output file name as an argument instead of writing
+          to the standard output and assuming this can be redirected.
+
+11. In UTF-8 mode, if a recursive reference (e.g. (?1)) followed a character
+    class containing characters with values greater than 255, PCRE compilation
+    went into a loop.
+
+12. A recursive reference to a subpattern that was within another subpattern
+    that had a minimum quantifier of zero caused PCRE to crash. For example,
+    (x(y(?2))z)? provoked this bug with a subject that got as far as the
+    recursion. If the recursively-called subpattern itself had a zero repeat,
+    that was OK.
+
+13. In pcretest, the buffer for reading a data line was set at 30K, but the
+    buffer into which it was copied (for escape processing) was still set at
+    1024, so long lines caused crashes.
+
+14. A pattern such as /[ab]{1,3}+/ failed to compile, giving the error
+    "internal error: code overflow...". This applied to any character class
+    that was followed by a possessive quantifier.
+
+15. Modified the Makefile to add libpcre.la as a prerequisite for
+    libpcreposix.la because I was told this is needed for a parallel build to
+    work.
+
+16. If a pattern that contained .* following optional items at the start was
+    studied, the wrong optimizing data was generated, leading to matching
+    errors. For example, studying /[ab]*.*c/ concluded, erroneously, that any
+    matching string must start with a or b or c. The correct conclusion for
+    this pattern is that a match can start with any character.
+
+
+Version 4.4 13-Aug-03
+---------------------
+
+ 1. In UTF-8 mode, a character class containing characters with values between
+    127 and 255 was not handled correctly if the compiled pattern was studied.
+    In fixing this, I have also improved the studying algorithm for such
+    classes (slightly).
+
+ 2. Three internal functions had redundant arguments passed to them. Removal
+    might give a very teeny performance improvement.
+
+ 3. Documentation bug: the value of the capture_top field in a callout is *one
+    more than* the number of the hightest numbered captured substring.
+
+ 4. The Makefile linked pcretest and pcregrep with -lpcre, which could result
+    in incorrectly linking with a previously installed version. They now link
+    explicitly with libpcre.la.
+
+ 5. configure.in no longer needs to recognize Cygwin specially.
+
+ 6. A problem in pcre.in for Windows platforms is fixed.
+
+ 7. If a pattern was successfully studied, and the -d (or /D) flag was given to
+    pcretest, it used to include the size of the study block as part of its
+    output. Unfortunately, the structure contains a field that has a different
+    size on different hardware architectures. This meant that the tests that
+    showed this size failed. As the block is currently always of a fixed size,
+    this information isn't actually particularly useful in pcretest output, so
+    I have just removed it.
+
+ 8. Three pre-processor statements accidentally did not start in column 1.
+    Sadly, there are *still* compilers around that complain, even though
+    standard C has not required this for well over a decade. Sigh.
+
+ 9. In pcretest, the code for checking callouts passed small integers in the
+    callout_data field, which is a void * field. However, some picky compilers
+    complained about the casts involved for this on 64-bit systems. Now
+    pcretest passes the address of the small integer instead, which should get
+    rid of the warnings.
+
+10. By default, when in UTF-8 mode, PCRE now checks for valid UTF-8 strings at
+    both compile and run time, and gives an error if an invalid UTF-8 sequence
+    is found. There is a option for disabling this check in cases where the
+    string is known to be correct and/or the maximum performance is wanted.
+
+11. In response to a bug report, I changed one line in Makefile.in from
+
+        -Wl,--out-implib,.libs/lib@WIN_PREFIX@pcreposix.dll.a \
+    to
+        -Wl,--out-implib,.libs/@WIN_PREFIX@libpcreposix.dll.a \
+
+    to look similar to other lines, but I have no way of telling whether this
+    is the right thing to do, as I do not use Windows. No doubt I'll get told
+    if it's wrong...
+
+
+Version 4.3 21-May-03
+---------------------
+
+1. Two instances of @WIN_PREFIX@ omitted from the Windows targets in the
+   Makefile.
+
+2. Some refactoring to improve the quality of the code:
+
+   (i)   The utf8_table... variables are now declared "const".
+
+   (ii)  The code for \cx, which used the "case flipping" table to upper case
+         lower case letters, now just substracts 32. This is ASCII-specific,
+         but the whole concept of \cx is ASCII-specific, so it seems
+         reasonable.
+
+   (iii) PCRE was using its character types table to recognize decimal and
+         hexadecimal digits in the pattern. This is silly, because it handles
+         only 0-9, a-f, and A-F, but the character types table is locale-
+         specific, which means strange things might happen. A private
+         table is now used for this - though it costs 256 bytes, a table is
+         much faster than multiple explicit tests. Of course, the standard
+         character types table is still used for matching digits in subject
+         strings against \d.
+
+   (iv)  Strictly, the identifier ESC_t is reserved by POSIX (all identifiers
+         ending in _t are). So I've renamed it as ESC_tee.
+
+3. The first argument for regexec() in the POSIX wrapper should have been
+   defined as "const".
+
+4. Changed pcretest to use malloc() for its buffers so that they can be
+   Electric Fenced for debugging.
+
+5. There were several places in the code where, in UTF-8 mode, PCRE would try
+   to read one or more bytes before the start of the subject string. Often this
+   had no effect on PCRE's behaviour, but in some circumstances it could
+   provoke a segmentation fault.
+
+6. A lookbehind at the start of a pattern in UTF-8 mode could also cause PCRE
+   to try to read one or more bytes before the start of the subject string.
+
+7. A lookbehind in a pattern matched in non-UTF-8 mode on a PCRE compiled with
+   UTF-8 support could misbehave in various ways if the subject string
+   contained bytes with the 0x80 bit set and the 0x40 bit unset in a lookbehind
+   area. (PCRE was not checking for the UTF-8 mode flag, and trying to move
+   back over UTF-8 characters.)
+
+
+Version 4.2 14-Apr-03
+---------------------
+
+1. Typo "#if SUPPORT_UTF8" instead of "#ifdef SUPPORT_UTF8" fixed.
+
+2. Changes to the building process, supplied by Ronald Landheer-Cieslak
+     [ON_WINDOWS]: new variable, "#" on non-Windows platforms
+     [NOT_ON_WINDOWS]: new variable, "#" on Windows platforms
+     [WIN_PREFIX]: new variable, "cyg" for Cygwin
+     * Makefile.in: use autoconf substitution for OBJEXT, EXEEXT, BUILD_OBJEXT
+       and BUILD_EXEEXT
+     Note: automatic setting of the BUILD variables is not yet working
+     set CPPFLAGS and BUILD_CPPFLAGS (but don't use yet) - should be used at
+       compile-time but not at link-time
+     [LINK]: use for linking executables only
+     make different versions for Windows and non-Windows
+     [LINKLIB]: new variable, copy of UNIX-style LINK, used for linking
+       libraries
+     [LINK_FOR_BUILD]: new variable
+     [OBJEXT]: use throughout
+     [EXEEXT]: use throughout
+     <winshared>: new target
+     <wininstall>: new target
+     <dftables.o>: use native compiler
+     <dftables>: use native linker
+     <install>: handle Windows platform correctly
+     <clean>: ditto
+     <check>: ditto
+     copy DLL to top builddir before testing
+
+   As part of these changes, -no-undefined was removed again. This was reported
+   to give trouble on HP-UX 11.0, so getting rid of it seems like a good idea
+   in any case.
+
+3. Some tidies to get rid of compiler warnings:
+
+   . In the match_data structure, match_limit was an unsigned long int, whereas
+     match_call_count was an int. I've made them both unsigned long ints.
+
+   . In pcretest the fact that a const uschar * doesn't automatically cast to
+     a void * provoked a warning.
+
+   . Turning on some more compiler warnings threw up some "shadow" variables
+     and a few more missing casts.
+
+4. If PCRE was complied with UTF-8 support, but called without the PCRE_UTF8
+   option, a class that contained a single character with a value between 128
+   and 255 (e.g. /[\xFF]/) caused PCRE to crash.
+
+5. If PCRE was compiled with UTF-8 support, but called without the PCRE_UTF8
+   option, a class that contained several characters, but with at least one
+   whose value was between 128 and 255 caused PCRE to crash.
+
+
+Version 4.1 12-Mar-03
+---------------------
+
+1. Compiling with gcc -pedantic found a couple of places where casts were
+needed, and a string in dftables.c that was longer than standard compilers are
+required to support.
+
+2. Compiling with Sun's compiler found a few more places where the code could
+be tidied up in order to avoid warnings.
+
+3. The variables for cross-compiling were called HOST_CC and HOST_CFLAGS; the
+first of these names is deprecated in the latest Autoconf in favour of the name
+CC_FOR_BUILD, because "host" is typically used to mean the system on which the
+compiled code will be run. I can't find a reference for HOST_CFLAGS, but by
+analogy I have changed it to CFLAGS_FOR_BUILD.
+
+4. Added -no-undefined to the linking command in the Makefile, because this is
+apparently helpful for Windows. To make it work, also added "-L. -lpcre" to the
+linking step for the pcreposix library.
+
+5. PCRE was failing to diagnose the case of two named groups with the same
+name.
+
+6. A problem with one of PCRE's optimizations was discovered. PCRE remembers a
+literal character that is needed in the subject for a match, and scans along to
+ensure that it is present before embarking on the full matching process. This
+saves time in cases of nested unlimited repeats that are never going to match.
+Problem: the scan can take a lot of time if the subject is very long (e.g.
+megabytes), thus penalizing straightforward matches. It is now done only if the
+amount of subject to be scanned is less than 1000 bytes.
+
+7. A lesser problem with the same optimization is that it was recording the
+first character of an anchored pattern as "needed", thus provoking a search
+right along the subject, even when the first match of the pattern was going to
+fail. The "needed" character is now not set for anchored patterns, unless it
+follows something in the pattern that is of non-fixed length. Thus, it still
+fulfils its original purpose of finding quick non-matches in cases of nested
+unlimited repeats, but isn't used for simple anchored patterns such as /^abc/.
+
+
+Version 4.0 17-Feb-03
+---------------------
+
+1. If a comment in an extended regex that started immediately after a meta-item
+extended to the end of string, PCRE compiled incorrect data. This could lead to
+all kinds of weird effects. Example: /#/ was bad; /()#/ was bad; /a#/ was not.
+
+2. Moved to autoconf 2.53 and libtool 1.4.2.
+
+3. Perl 5.8 no longer needs "use utf8" for doing UTF-8 things. Consequently,
+the special perltest8 script is no longer needed - all the tests can be run
+from a single perltest script.
+
+4. From 5.004, Perl has not included the VT character (0x0b) in the set defined
+by \s. It has now been removed in PCRE. This means it isn't recognized as
+whitespace in /x regexes too, which is the same as Perl. Note that the POSIX
+class [:space:] *does* include VT, thereby creating a mess.
+
+5. Added the class [:blank:] (a GNU extension from Perl 5.8) to match only
+space and tab.
+
+6. Perl 5.005 was a long time ago. It's time to amalgamate the tests that use
+its new features into the main test script, reducing the number of scripts.
+
+7. Perl 5.8 has changed the meaning of patterns like /a(?i)b/. Earlier versions
+were backward compatible, and made the (?i) apply to the whole pattern, as if
+/i were given. Now it behaves more logically, and applies the option setting
+only to what follows. PCRE has been changed to follow suit. However, if it
+finds options settings right at the start of the pattern, it extracts them into
+the global options, as before. Thus, they show up in the info data.
+
+8. Added support for the \Q...\E escape sequence. Characters in between are
+treated as literals. This is slightly different from Perl in that $ and @ are
+also handled as literals inside the quotes. In Perl, they will cause variable
+interpolation. Note the following examples:
+
+    Pattern            PCRE matches      Perl matches
+
+    \Qabc$xyz\E        abc$xyz           abc followed by the contents of $xyz
+    \Qabc\$xyz\E       abc\$xyz          abc\$xyz
+    \Qabc\E\$\Qxyz\E   abc$xyz           abc$xyz
+
+For compatibility with Perl, \Q...\E sequences are recognized inside character
+classes as well as outside them.
+
+9. Re-organized 3 code statements in pcretest to avoid "overflow in
+floating-point constant arithmetic" warnings from a Microsoft compiler. Added a
+(size_t) cast to one statement in pcretest and one in pcreposix to avoid
+signed/unsigned warnings.
+
+10. SunOS4 doesn't have strtoul(). This was used only for unpicking the -o
+option for pcretest, so I've replaced it by a simple function that does just
+that job.
+
+11. pcregrep was ending with code 0 instead of 2 for the commands "pcregrep" or
+"pcregrep -".
+
+12. Added "possessive quantifiers" ?+, *+, ++, and {,}+ which come from Sun's
+Java package. This provides some syntactic sugar for simple cases of what my
+documentation calls "once-only subpatterns". A pattern such as x*+ is the same
+as (?>x*). In other words, if what is inside (?>...) is just a single repeated
+item, you can use this simplified notation. Note that only makes sense with
+greedy quantifiers. Consequently, the use of the possessive quantifier forces
+greediness, whatever the setting of the PCRE_UNGREEDY option.
+
+13. A change of greediness default within a pattern was not taking effect at
+the current level for patterns like /(b+(?U)a+)/. It did apply to parenthesized
+subpatterns that followed. Patterns like /b+(?U)a+/ worked because the option
+was abstracted outside.
+
+14. PCRE now supports the \G assertion. It is true when the current matching
+position is at the start point of the match. This differs from \A when the
+starting offset is non-zero. Used with the /g option of pcretest (or similar
+code), it works in the same way as it does for Perl's /g option. If all
+alternatives of a regex begin with \G, the expression is anchored to the start
+match position, and the "anchored" flag is set in the compiled expression.
+
+15. Some bugs concerning the handling of certain option changes within patterns
+have been fixed. These applied to options other than (?ims). For example,
+"a(?x: b c )d" did not match "XabcdY" but did match "Xa b c dY". It should have
+been the other way round. Some of this was related to change 7 above.
+
+16. PCRE now gives errors for /[.x.]/ and /[=x=]/ as unsupported POSIX
+features, as Perl does. Previously, PCRE gave the warnings only for /[[.x.]]/
+and /[[=x=]]/. PCRE now also gives an error for /[:name:]/ because it supports
+POSIX classes only within a class (e.g. /[[:alpha:]]/).
+
+17. Added support for Perl's \C escape. This matches one byte, even in UTF8
+mode. Unlike ".", it always matches newline, whatever the setting of
+PCRE_DOTALL. However, PCRE does not permit \C to appear in lookbehind
+assertions. Perl allows it, but it doesn't (in general) work because it can't
+calculate the length of the lookbehind. At least, that's the case for Perl
+5.8.0 - I've been told they are going to document that it doesn't work in
+future.
+
+18. Added an error diagnosis for escapes that PCRE does not support: these are
+\L, \l, \N, \P, \p, \U, \u, and \X.
+
+19. Although correctly diagnosing a missing ']' in a character class, PCRE was
+reading past the end of the pattern in cases such as /[abcd/.
+
+20. PCRE was getting more memory than necessary for patterns with classes that
+contained both POSIX named classes and other characters, e.g. /[[:space:]abc/.
+
+21. Added some code, conditional on #ifdef VPCOMPAT, to make life easier for
+compiling PCRE for use with Virtual Pascal.
+
+22. Small fix to the Makefile to make it work properly if the build is done
+outside the source tree.
+
+23. Added a new extension: a condition to go with recursion. If a conditional
+subpattern starts with (?(R) the "true" branch is used if recursion has
+happened, whereas the "false" branch is used only at the top level.
+
+24. When there was a very long string of literal characters (over 255 bytes
+without UTF support, over 250 bytes with UTF support), the computation of how
+much memory was required could be incorrect, leading to segfaults or other
+strange effects.
+
+25. PCRE was incorrectly assuming anchoring (either to start of subject or to
+start of line for a non-DOTALL pattern) when a pattern started with (.*) and
+there was a subsequent back reference to those brackets. This meant that, for
+example, /(.*)\d+\1/ failed to match "abc123bc". Unfortunately, it isn't
+possible to check for precisely this case. All we can do is abandon the
+optimization if .* occurs inside capturing brackets when there are any back
+references whatsoever. (See below for a better fix that came later.)
+
+26. The handling of the optimization for finding the first character of a
+non-anchored pattern, and for finding a character that is required later in the
+match were failing in some cases. This didn't break the matching; it just
+failed to optimize when it could. The way this is done has been re-implemented.
+
+27. Fixed typo in error message for invalid (?R item (it said "(?p").
+
+28. Added a new feature that provides some of the functionality that Perl
+provides with (?{...}). The facility is termed a "callout". The way it is done
+in PCRE is for the caller to provide an optional function, by setting
+pcre_callout to its entry point. Like pcre_malloc and pcre_free, this is a
+global variable. By default it is unset, which disables all calling out. To get
+the function called, the regex must include (?C) at appropriate points. This
+is, in fact, equivalent to (?C0), and any number <= 255 may be given with (?C).
+This provides a means of identifying different callout points. When PCRE
+reaches such a point in the regex, if pcre_callout has been set, the external
+function is called. It is provided with data in a structure called
+pcre_callout_block, which is defined in pcre.h. If the function returns 0,
+matching continues; if it returns a non-zero value, the match at the current
+point fails. However, backtracking will occur if possible. [This was changed
+later and other features added - see item 49 below.]
+
+29. pcretest is upgraded to test the callout functionality. It provides a
+callout function that displays information. By default, it shows the start of
+the match and the current position in the text. There are some new data escapes
+to vary what happens:
+
+    \C+         in addition, show current contents of captured substrings
+    \C-         do not supply a callout function
+    \C!n        return 1 when callout number n is reached
+    \C!n!m      return 1 when callout number n is reached for the mth time
+
+30. If pcregrep was called with the -l option and just a single file name, it
+output "<stdin>" if a match was found, instead of the file name.
+
+31. Improve the efficiency of the POSIX API to PCRE. If the number of capturing
+slots is less than POSIX_MALLOC_THRESHOLD, use a block on the stack to pass to
+pcre_exec(). This saves a malloc/free per call. The default value of
+POSIX_MALLOC_THRESHOLD is 10; it can be changed by --with-posix-malloc-threshold
+when configuring.
+
+32. The default maximum size of a compiled pattern is 64K. There have been a
+few cases of people hitting this limit. The code now uses macros to handle the
+storing of links as offsets within the compiled pattern. It defaults to 2-byte
+links, but this can be changed to 3 or 4 bytes by --with-link-size when
+configuring. Tests 2 and 5 work only with 2-byte links because they output
+debugging information about compiled patterns.
+
+33. Internal code re-arrangements:
+
+(a) Moved the debugging function for printing out a compiled regex into
+    its own source file (printint.c) and used #include to pull it into
+    pcretest.c and, when DEBUG is defined, into pcre.c, instead of having two
+    separate copies.
+
+(b) Defined the list of op-code names for debugging as a macro in
+    internal.h so that it is next to the definition of the opcodes.
+
+(c) Defined a table of op-code lengths for simpler skipping along compiled
+    code. This is again a macro in internal.h so that it is next to the
+    definition of the opcodes.
+
+34. Added support for recursive calls to individual subpatterns, along the
+lines of Robin Houston's patch (but implemented somewhat differently).
+
+35. Further mods to the Makefile to help Win32. Also, added code to pcregrep to
+allow it to read and process whole directories in Win32. This code was
+contributed by Lionel Fourquaux; it has not been tested by me.
+
+36. Added support for named subpatterns. The Python syntax (?P<name>...) is
+used to name a group. Names consist of alphanumerics and underscores, and must
+be unique. Back references use the syntax (?P=name) and recursive calls use
+(?P>name) which is a PCRE extension to the Python extension. Groups still have
+numbers. The function pcre_fullinfo() can be used after compilation to extract
+a name/number map. There are three relevant calls:
+
+  PCRE_INFO_NAMEENTRYSIZE        yields the size of each entry in the map
+  PCRE_INFO_NAMECOUNT            yields the number of entries
+  PCRE_INFO_NAMETABLE            yields a pointer to the map.
+
+The map is a vector of fixed-size entries. The size of each entry depends on
+the length of the longest name used. The first two bytes of each entry are the
+group number, most significant byte first. There follows the corresponding
+name, zero terminated. The names are in alphabetical order.
+
+37. Make the maximum literal string in the compiled code 250 for the non-UTF-8
+case instead of 255. Making it the same both with and without UTF-8 support
+means that the same test output works with both.
+
+38. There was a case of malloc(0) in the POSIX testing code in pcretest. Avoid
+calling malloc() with a zero argument.
+
+39. Change 25 above had to resort to a heavy-handed test for the .* anchoring
+optimization. I've improved things by keeping a bitmap of backreferences with
+numbers 1-31 so that if .* occurs inside capturing brackets that are not in
+fact referenced, the optimization can be applied. It is unlikely that a
+relevant occurrence of .* (i.e. one which might indicate anchoring or forcing
+the match to follow \n) will appear inside brackets with a number greater than
+31, but if it does, any back reference > 31 suppresses the optimization.
+
+40. Added a new compile-time option PCRE_NO_AUTO_CAPTURE. This has the effect
+of disabling numbered capturing parentheses. Any opening parenthesis that is
+not followed by ? behaves as if it were followed by ?: but named parentheses
+can still be used for capturing (and they will acquire numbers in the usual
+way).
+
+41. Redesigned the return codes from the match() function into yes/no/error so
+that errors can be passed back from deep inside the nested calls. A malloc
+failure while inside a recursive subpattern call now causes the
+PCRE_ERROR_NOMEMORY return instead of quietly going wrong.
+
+42. It is now possible to set a limit on the number of times the match()
+function is called in a call to pcre_exec(). This facility makes it possible to
+limit the amount of recursion and backtracking, though not in a directly
+obvious way, because the match() function is used in a number of different
+circumstances. The count starts from zero for each position in the subject
+string (for non-anchored patterns). The default limit is, for compatibility, a
+large number, namely 10 000 000. You can change this in two ways:
+
+(a) When configuring PCRE before making, you can use --with-match-limit=n
+    to set a default value for the compiled library.
+
+(b) For each call to pcre_exec(), you can pass a pcre_extra block in which
+    a different value is set. See 45 below.
+
+If the limit is exceeded, pcre_exec() returns PCRE_ERROR_MATCHLIMIT.
+
+43. Added a new function pcre_config(int, void *) to enable run-time extraction
+of things that can be changed at compile time. The first argument specifies
+what is wanted and the second points to where the information is to be placed.
+The current list of available information is:
+
+  PCRE_CONFIG_UTF8
+
+The output is an integer that is set to one if UTF-8 support is available;
+otherwise it is set to zero.
+
+  PCRE_CONFIG_NEWLINE
+
+The output is an integer that it set to the value of the code that is used for
+newline. It is either LF (10) or CR (13).
+
+  PCRE_CONFIG_LINK_SIZE
+
+The output is an integer that contains the number of bytes used for internal
+linkage in compiled expressions. The value is 2, 3, or 4. See item 32 above.
+
+  PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
+
+The output is an integer that contains the threshold above which the POSIX
+interface uses malloc() for output vectors. See item 31 above.
+
+  PCRE_CONFIG_MATCH_LIMIT
+
+The output is an unsigned integer that contains the default limit of the number
+of match() calls in a pcre_exec() execution. See 42 above.
+
+44. pcretest has been upgraded by the addition of the -C option. This causes it
+to extract all the available output from the new pcre_config() function, and to
+output it. The program then exits immediately.
+
+45. A need has arisen to pass over additional data with calls to pcre_exec() in
+order to support additional features. One way would have been to define
+pcre_exec2() (for example) with extra arguments, but this would not have been
+extensible, and would also have required all calls to the original function to
+be mapped to the new one. Instead, I have chosen to extend the mechanism that
+is used for passing in "extra" data from pcre_study().
+
+The pcre_extra structure is now exposed and defined in pcre.h. It currently
+contains the following fields:
+
+  flags         a bitmap indicating which of the following fields are set
+  study_data    opaque data from pcre_study()
+  match_limit   a way of specifying a limit on match() calls for a specific
+                  call to pcre_exec()
+  callout_data  data for callouts (see 49 below)
+
+The flag bits are also defined in pcre.h, and are
+
+  PCRE_EXTRA_STUDY_DATA
+  PCRE_EXTRA_MATCH_LIMIT
+  PCRE_EXTRA_CALLOUT_DATA
+
+The pcre_study() function now returns one of these new pcre_extra blocks, with
+the actual study data pointed to by the study_data field, and the
+PCRE_EXTRA_STUDY_DATA flag set. This can be passed directly to pcre_exec() as
+before. That is, this change is entirely upwards-compatible and requires no
+change to existing code.
+
+If you want to pass in additional data to pcre_exec(), you can either place it
+in a pcre_extra block provided by pcre_study(), or create your own pcre_extra
+block.
+
+46. pcretest has been extended to test the PCRE_EXTRA_MATCH_LIMIT feature. If a
+data string contains the escape sequence \M, pcretest calls pcre_exec() several
+times with different match limits, until it finds the minimum value needed for
+pcre_exec() to complete. The value is then output. This can be instructive; for
+most simple matches the number is quite small, but for pathological cases it
+gets very large very quickly.
+
+47. There's a new option for pcre_fullinfo() called PCRE_INFO_STUDYSIZE. It
+returns the size of the data block pointed to by the study_data field in a
+pcre_extra block, that is, the value that was passed as the argument to
+pcre_malloc() when PCRE was getting memory in which to place the information
+created by pcre_study(). The fourth argument should point to a size_t variable.
+pcretest has been extended so that this information is shown after a successful
+pcre_study() call when information about the compiled regex is being displayed.
+
+48. Cosmetic change to Makefile: there's no need to have / after $(DESTDIR)
+because what follows is always an absolute path. (Later: it turns out that this
+is more than cosmetic for MinGW, because it doesn't like empty path
+components.)
+
+49. Some changes have been made to the callout feature (see 28 above):
+
+(i)  A callout function now has three choices for what it returns:
+
+       0  =>  success, carry on matching
+     > 0  =>  failure at this point, but backtrack if possible
+     < 0  =>  serious error, return this value from pcre_exec()
+
+     Negative values should normally be chosen from the set of PCRE_ERROR_xxx
+     values. In particular, returning PCRE_ERROR_NOMATCH forces a standard
+     "match failed" error. The error number PCRE_ERROR_CALLOUT is reserved for
+     use by callout functions. It will never be used by PCRE itself.
+
+(ii) The pcre_extra structure (see 45 above) has a void * field called
+     callout_data, with corresponding flag bit PCRE_EXTRA_CALLOUT_DATA. The
+     pcre_callout_block structure has a field of the same name. The contents of
+     the field passed in the pcre_extra structure are passed to the callout
+     function in the corresponding field in the callout block. This makes it
+     easier to use the same callout-containing regex from multiple threads. For
+     testing, the pcretest program has a new data escape
+
+       \C*n        pass the number n (may be negative) as callout_data
+
+     If the callout function in pcretest receives a non-zero value as
+     callout_data, it returns that value.
+
+50. Makefile wasn't handling CFLAGS properly when compiling dftables. Also,
+there were some redundant $(CFLAGS) in commands that are now specified as
+$(LINK), which already includes $(CFLAGS).
+
+51. Extensions to UTF-8 support are listed below. These all apply when (a) PCRE
+has been compiled with UTF-8 support *and* pcre_compile() has been compiled
+with the PCRE_UTF8 flag. Patterns that are compiled without that flag assume
+one-byte characters throughout. Note that case-insensitive matching applies
+only to characters whose values are less than 256. PCRE doesn't support the
+notion of cases for higher-valued characters.
+
+(i)   A character class whose characters are all within 0-255 is handled as
+      a bit map, and the map is inverted for negative classes. Previously, a
+      character > 255 always failed to match such a class; however it should
+      match if the class was a negative one (e.g. [^ab]). This has been fixed.
+
+(ii)  A negated character class with a single character < 255 is coded as
+      "not this character" (OP_NOT). This wasn't working properly when the test
+      character was multibyte, either singly or repeated.
+
+(iii) Repeats of multibyte characters are now handled correctly in UTF-8
+      mode, for example: \x{100}{2,3}.
+
+(iv)  The character escapes \b, \B, \d, \D, \s, \S, \w, and \W (either
+      singly or repeated) now correctly test multibyte characters. However,
+      PCRE doesn't recognize any characters with values greater than 255 as
+      digits, spaces, or word characters. Such characters always match \D, \S,
+      and \W, and never match \d, \s, or \w.
+
+(v)   Classes may now contain characters and character ranges with values
+      greater than 255. For example: [ab\x{100}-\x{400}].
+
+(vi)  pcregrep now has a --utf-8 option (synonym -u) which makes it call
+      PCRE in UTF-8 mode.
+
+52. The info request value PCRE_INFO_FIRSTCHAR has been renamed
+PCRE_INFO_FIRSTBYTE because it is a byte value. However, the old name is
+retained for backwards compatibility. (Note that LASTLITERAL is also a byte
+value.)
+
+53. The single man page has become too large. I have therefore split it up into
+a number of separate man pages. These also give rise to individual HTML pages;
+these are now put in a separate directory, and there is an index.html page that
+lists them all. Some hyperlinking between the pages has been installed.
+
+54. Added convenience functions for handling named capturing parentheses.
+
+55. Unknown escapes inside character classes (e.g. [\M]) and escapes that
+aren't interpreted therein (e.g. [\C]) are literals in Perl. This is now also
+true in PCRE, except when the PCRE_EXTENDED option is set, in which case they
+are faulted.
+
+56. Introduced HOST_CC and HOST_CFLAGS which can be set in the environment when
+calling configure. These values are used when compiling the dftables.c program
+which is run to generate the source of the default character tables. They
+default to the values of CC and CFLAGS. If you are cross-compiling PCRE,
+you will need to set these values.
+
+57. Updated the building process for Windows DLL, as provided by Fred Cox.
+
+
+Version 3.9 02-Jan-02
+---------------------
+
+1. A bit of extraneous text had somehow crept into the pcregrep documentation.
+
+2. If --disable-static was given, the building process failed when trying to
+build pcretest and pcregrep. (For some reason it was using libtool to compile
+them, which is not right, as they aren't part of the library.)
+
+
+Version 3.8 18-Dec-01
+---------------------
+
+1. The experimental UTF-8 code was completely screwed up. It was packing the
+bytes in the wrong order. How dumb can you get?
+
+
+Version 3.7 29-Oct-01
+---------------------
+
+1. In updating pcretest to check change 1 of version 3.6, I screwed up.
+This caused pcretest, when used on the test data, to segfault. Unfortunately,
+this didn't happen under Solaris 8, where I normally test things.
+
+2. The Makefile had to be changed to make it work on BSD systems, where 'make'
+doesn't seem to recognize that ./xxx and xxx are the same file. (This entry
+isn't in ChangeLog distributed with 3.7 because I forgot when I hastily made
+this fix an hour or so after the initial 3.7 release.)
+
+
+Version 3.6 23-Oct-01
+---------------------
+
+1. Crashed with /(sens|respons)e and \1ibility/ and "sense and sensibility" if
+offsets passed as NULL with zero offset count.
+
+2. The config.guess and config.sub files had not been updated when I moved to
+the latest autoconf.
+
+
+Version 3.5 15-Aug-01
+---------------------
+
+1. Added some missing #if !defined NOPOSIX conditionals in pcretest.c that
+had been forgotten.
+
+2. By using declared but undefined structures, we can avoid using "void"
+definitions in pcre.h while keeping the internal definitions of the structures
+private.
+
+3. The distribution is now built using autoconf 2.50 and libtool 1.4. From a
+user point of view, this means that both static and shared libraries are built
+by default, but this can be individually controlled. More of the work of
+handling this static/shared cases is now inside libtool instead of PCRE's make
+file.
+
+4. The pcretest utility is now installed along with pcregrep because it is
+useful for users (to test regexs) and by doing this, it automatically gets
+relinked by libtool. The documentation has been turned into a man page, so
+there are now .1, .txt, and .html versions in /doc.
+
+5. Upgrades to pcregrep:
+   (i)   Added long-form option names like gnu grep.
+   (ii)  Added --help to list all options with an explanatory phrase.
+   (iii) Added -r, --recursive to recurse into sub-directories.
+   (iv)  Added -f, --file to read patterns from a file.
+
+6. pcre_exec() was referring to its "code" argument before testing that
+argument for NULL (and giving an error if it was NULL).
+
+7. Upgraded Makefile.in to allow for compiling in a different directory from
+the source directory.
+
+8. Tiny buglet in pcretest: when pcre_fullinfo() was called to retrieve the
+options bits, the pointer it was passed was to an int instead of to an unsigned
+long int. This mattered only on 64-bit systems.
+
+9. Fixed typo (3.4/1) in pcre.h again. Sigh. I had changed pcre.h (which is
+generated) instead of pcre.in, which it its source. Also made the same change
+in several of the .c files.
+
+10. A new release of gcc defines printf() as a macro, which broke pcretest
+because it had an ifdef in the middle of a string argument for printf(). Fixed
+by using separate calls to printf().
+
+11. Added --enable-newline-is-cr and --enable-newline-is-lf to the configure
+script, to force use of CR or LF instead of \n in the source. On non-Unix
+systems, the value can be set in config.h.
+
+12. The limit of 200 on non-capturing parentheses is a _nesting_ limit, not an
+absolute limit. Changed the text of the error message to make this clear, and
+likewise updated the man page.
+
+13. The limit of 99 on the number of capturing subpatterns has been removed.
+The new limit is 65535, which I hope will not be a "real" limit.
+
+
+Version 3.4 22-Aug-00
+---------------------
+
+1. Fixed typo in pcre.h: unsigned const char * changed to const unsigned char *.
+
+2. Diagnose condition (?(0) as an error instead of crashing on matching.
+
+
+Version 3.3 01-Aug-00
+---------------------
+
+1. If an octal character was given, but the value was greater than \377, it
+was not getting masked to the least significant bits, as documented. This could
+lead to crashes in some systems.
+
+2. Perl 5.6 (if not earlier versions) accepts classes like [a-\d] and treats
+the hyphen as a literal. PCRE used to give an error; it now behaves like Perl.
+
+3. Added the functions pcre_free_substring() and pcre_free_substring_list().
+These just pass their arguments on to (pcre_free)(), but they are provided
+because some uses of PCRE bind it to non-C systems that can call its functions,
+but cannot call free() or pcre_free() directly.
+
+4. Add "make test" as a synonym for "make check". Corrected some comments in
+the Makefile.
+
+5. Add $(DESTDIR)/ in front of all the paths in the "install" target in the
+Makefile.
+
+6. Changed the name of pgrep to pcregrep, because Solaris has introduced a
+command called pgrep for grepping around the active processes.
+
+7. Added the beginnings of support for UTF-8 character strings.
+
+8. Arranged for the Makefile to pass over the settings of CC, CFLAGS, and
+RANLIB to ./ltconfig so that they are used by libtool. I think these are all
+the relevant ones. (AR is not passed because ./ltconfig does its own figuring
+out for the ar command.)
+
+
+Version 3.2 12-May-00
+---------------------
+
+This is purely a bug fixing release.
+
+1. If the pattern /((Z)+|A)*/ was matched agained ZABCDEFG it matched Z instead
+of ZA. This was just one example of several cases that could provoke this bug,
+which was introduced by change 9 of version 2.00. The code for breaking
+infinite loops after an iteration that matches an empty string was't working
+correctly.
+
+2. The pcretest program was not imitating Perl correctly for the pattern /a*/g
+when matched against abbab (for example). After matching an empty string, it
+wasn't forcing anchoring when setting PCRE_NOTEMPTY for the next attempt; this
+caused it to match further down the string than it should.
+
+3. The code contained an inclusion of sys/types.h. It isn't clear why this
+was there because it doesn't seem to be needed, and it causes trouble on some
+systems, as it is not a Standard C header. It has been removed.
+
+4. Made 4 silly changes to the source to avoid stupid compiler warnings that
+were reported on the Macintosh. The changes were from
+
+  while ((c = *(++ptr)) != 0 && c != '\n');
+to
+  while ((c = *(++ptr)) != 0 && c != '\n') ;
+
+Totally extraordinary, but if that's what it takes...
+
+5. PCRE is being used in one environment where neither memmove() nor bcopy() is
+available. Added HAVE_BCOPY and an autoconf test for it; if neither
+HAVE_MEMMOVE nor HAVE_BCOPY is set, use a built-in emulation function which
+assumes the way PCRE uses memmove() (always moving upwards).
+
+6. PCRE is being used in one environment where strchr() is not available. There
+was only one use in pcre.c, and writing it out to avoid strchr() probably gives
+faster code anyway.
+
+
+Version 3.1 09-Feb-00
+---------------------
+
+The only change in this release is the fixing of some bugs in Makefile.in for
+the "install" target:
+
+(1) It was failing to install pcreposix.h.
+
+(2) It was overwriting the pcre.3 man page with the pcreposix.3 man page.
+
+
+Version 3.0 01-Feb-00
+---------------------
+
+1. Add support for the /+ modifier to perltest (to output $` like it does in
+pcretest).
+
+2. Add support for the /g modifier to perltest.
+
+3. Fix pcretest so that it behaves even more like Perl for /g when the pattern
+matches null strings.
+
+4. Fix perltest so that it doesn't do unwanted things when fed an empty
+pattern. Perl treats empty patterns specially - it reuses the most recent
+pattern, which is not what we want. Replace // by /(?#)/ in order to avoid this
+effect.
+
+5. The POSIX interface was broken in that it was just handing over the POSIX
+captured string vector to pcre_exec(), but (since release 2.00) PCRE has
+required a bigger vector, with some working space on the end. This means that
+the POSIX wrapper now has to get and free some memory, and copy the results.
+
+6. Added some simple autoconf support, placing the test data and the
+documentation in separate directories, re-organizing some of the
+information files, and making it build pcre-config (a GNU standard). Also added
+libtool support for building PCRE as a shared library, which is now the
+default.
+
+7. Got rid of the leading zero in the definition of PCRE_MINOR because 08 and
+09 are not valid octal constants. Single digits will be used for minor values
+less than 10.
+
+8. Defined REG_EXTENDED and REG_NOSUB as zero in the POSIX header, so that
+existing programs that set these in the POSIX interface can use PCRE without
+modification.
+
+9. Added a new function, pcre_fullinfo() with an extensible interface. It can
+return all that pcre_info() returns, plus additional data. The pcre_info()
+function is retained for compatibility, but is considered to be obsolete.
+
+10. Added experimental recursion feature (?R) to handle one common case that
+Perl 5.6 will be able to do with (?p{...}).
+
+11. Added support for POSIX character classes like [:alpha:], which Perl is
+adopting.
+
+
+Version 2.08 31-Aug-99
+----------------------
+
+1. When startoffset was not zero and the pattern began with ".*", PCRE was not
+trying to match at the startoffset position, but instead was moving forward to
+the next newline as if a previous match had failed.
+
+2. pcretest was not making use of PCRE_NOTEMPTY when repeating for /g and /G,
+and could get into a loop if a null string was matched other than at the start
+of the subject.
+
+3. Added definitions of PCRE_MAJOR and PCRE_MINOR to pcre.h so the version can
+be distinguished at compile time, and for completeness also added PCRE_DATE.
+
+5. Added Paul Sokolovsky's minor changes to make it easy to compile a Win32 DLL
+in GnuWin32 environments.
+
+
+Version 2.07 29-Jul-99
+----------------------
+
+1. The documentation is now supplied in plain text form and HTML as well as in
+the form of man page sources.
+
+2. C++ compilers don't like assigning (void *) values to other pointer types.
+In particular this affects malloc(). Although there is no problem in Standard
+C, I've put in casts to keep C++ compilers happy.
+
+3. Typo on pcretest.c; a cast of (unsigned char *) in the POSIX regexec() call
+should be (const char *).
+
+4. If NOPOSIX is defined, pcretest.c compiles without POSIX support. This may
+be useful for non-Unix systems who don't want to bother with the POSIX stuff.
+However, I haven't made this a standard facility. The documentation doesn't
+mention it, and the Makefile doesn't support it.
+
+5. The Makefile now contains an "install" target, with editable destinations at
+the top of the file. The pcretest program is not installed.
+
+6. pgrep -V now gives the PCRE version number and date.
+
+7. Fixed bug: a zero repetition after a literal string (e.g. /abcde{0}/) was
+causing the entire string to be ignored, instead of just the last character.
+
+8. If a pattern like /"([^\\"]+|\\.)*"/ is applied in the normal way to a
+non-matching string, it can take a very, very long time, even for strings of
+quite modest length, because of the nested recursion. PCRE now does better in
+some of these cases. It does this by remembering the last required literal
+character in the pattern, and pre-searching the subject to ensure it is present
+before running the real match. In other words, it applies a heuristic to detect
+some types of certain failure quickly, and in the above example, if presented
+with a string that has no trailing " it gives "no match" very quickly.
+
+9. A new runtime option PCRE_NOTEMPTY causes null string matches to be ignored;
+other alternatives are tried instead.
+
+
+Version 2.06 09-Jun-99
+----------------------
+
+1. Change pcretest's output for amount of store used to show just the code
+space, because the remainder (the data block) varies in size between 32-bit and
+64-bit systems.
+
+2. Added an extra argument to pcre_exec() to supply an offset in the subject to
+start matching at. This allows lookbehinds to work when searching for multiple
+occurrences in a string.
+
+3. Added additional options to pcretest for testing multiple occurrences:
+
+   /+   outputs the rest of the string that follows a match
+   /g   loops for multiple occurrences, using the new startoffset argument
+   /G   loops for multiple occurrences by passing an incremented pointer
+
+4. PCRE wasn't doing the "first character" optimization for patterns starting
+with \b or \B, though it was doing it for other lookbehind assertions. That is,
+it wasn't noticing that a match for a pattern such as /\bxyz/ has to start with
+the letter 'x'. On long subject strings, this gives a significant speed-up.
+
+
+Version 2.05 21-Apr-99
+----------------------
+
+1. Changed the type of magic_number from int to long int so that it works
+properly on 16-bit systems.
+
+2. Fixed a bug which caused patterns starting with .* not to work correctly
+when the subject string contained newline characters. PCRE was assuming
+anchoring for such patterns in all cases, which is not correct because .* will
+not pass a newline unless PCRE_DOTALL is set. It now assumes anchoring only if
+DOTALL is set at top level; otherwise it knows that patterns starting with .*
+must be retried after every newline in the subject.
+
+
+Version 2.04 18-Feb-99
+----------------------
+
+1. For parenthesized subpatterns with repeats whose minimum was zero, the
+computation of the store needed to hold the pattern was incorrect (too large).
+If such patterns were nested a few deep, this could multiply and become a real
+problem.
+
+2. Added /M option to pcretest to show the memory requirement of a specific
+pattern. Made -m a synonym of -s (which does this globally) for compatibility.
+
+3. Subpatterns of the form (regex){n,m} (i.e. limited maximum) were being
+compiled in such a way that the backtracking after subsequent failure was
+pessimal. Something like (a){0,3} was compiled as (a)?(a)?(a)? instead of
+((a)((a)(a)?)?)? with disastrous performance if the maximum was of any size.
+
+
+Version 2.03 02-Feb-99
+----------------------
+
+1. Fixed typo and small mistake in man page.
+
+2. Added 4th condition (GPL supersedes if conflict) and created separate
+LICENCE file containing the conditions.
+
+3. Updated pcretest so that patterns such as /abc\/def/ work like they do in
+Perl, that is the internal \ allows the delimiter to be included in the
+pattern. Locked out the use of \ as a delimiter. If \ immediately follows
+the final delimiter, add \ to the end of the pattern (to test the error).
+
+4. Added the convenience functions for extracting substrings after a successful
+match. Updated pcretest to make it able to test these functions.
+
+
+Version 2.02 14-Jan-99
+----------------------
+
+1. Initialized the working variables associated with each extraction so that
+their saving and restoring doesn't refer to uninitialized store.
+
+2. Put dummy code into study.c in order to trick the optimizer of the IBM C
+compiler for OS/2 into generating correct code. Apparently IBM isn't going to
+fix the problem.
+
+3. Pcretest: the timing code wasn't using LOOPREPEAT for timing execution
+calls, and wasn't printing the correct value for compiling calls. Increased the
+default value of LOOPREPEAT, and the number of significant figures in the
+times.
+
+4. Changed "/bin/rm" in the Makefile to "-rm" so it works on Windows NT.
+
+5. Renamed "deftables" as "dftables" to get it down to 8 characters, to avoid
+a building problem on Windows NT with a FAT file system.
+
+
+Version 2.01 21-Oct-98
+----------------------
+
+1. Changed the API for pcre_compile() to allow for the provision of a pointer
+to character tables built by pcre_maketables() in the current locale. If NULL
+is passed, the default tables are used.
+
+
+Version 2.00 24-Sep-98
+----------------------
+
+1. Since the (>?) facility is in Perl 5.005, don't require PCRE_EXTRA to enable
+it any more.
+
+2. Allow quantification of (?>) groups, and make it work correctly.
+
+3. The first character computation wasn't working for (?>) groups.
+
+4. Correct the implementation of \Z (it is permitted to match on the \n at the
+end of the subject) and add 5.005's \z, which really does match only at the
+very end of the subject.
+
+5. Remove the \X "cut" facility; Perl doesn't have it, and (?> is neater.
+
+6. Remove the ability to specify CASELESS, MULTILINE, DOTALL, and
+DOLLAR_END_ONLY at runtime, to make it possible to implement the Perl 5.005
+localized options. All options to pcre_study() were also removed.
+
+7. Add other new features from 5.005:
+
+   $(?<=           positive lookbehind
+   $(?<!           negative lookbehind
+   (?imsx-imsx)    added the unsetting capability
+                   such a setting is global if at outer level; local otherwise
+   (?imsx-imsx:)   non-capturing groups with option setting
+   (?(cond)re|re)  conditional pattern matching
+
+   A backreference to itself in a repeated group matches the previous
+   captured string.
+
+8. General tidying up of studying (both automatic and via "study")
+consequential on the addition of new assertions.
+
+9. As in 5.005, unlimited repeated groups that could match an empty substring
+are no longer faulted at compile time. Instead, the loop is forcibly broken at
+runtime if any iteration does actually match an empty substring.
+
+10. Include the RunTest script in the distribution.
+
+11. Added tests from the Perl 5.005_02 distribution. This showed up a few
+discrepancies, some of which were old and were also with respect to 5.004. They
+have now been fixed.
+
+
+Version 1.09 28-Apr-98
+----------------------
+
+1. A negated single character class followed by a quantifier with a minimum
+value of one (e.g.  [^x]{1,6}  ) was not compiled correctly. This could lead to
+program crashes, or just wrong answers. This did not apply to negated classes
+containing more than one character, or to minima other than one.
+
+
+Version 1.08 27-Mar-98
+----------------------
+
+1. Add PCRE_UNGREEDY to invert the greediness of quantifiers.
+
+2. Add (?U) and (?X) to set PCRE_UNGREEDY and PCRE_EXTRA respectively. The
+latter must appear before anything that relies on it in the pattern.
+
+
+Version 1.07 16-Feb-98
+----------------------
+
+1. A pattern such as /((a)*)*/ was not being diagnosed as in error (unlimited
+repeat of a potentially empty string).
+
+
+Version 1.06 23-Jan-98
+----------------------
+
+1. Added Markus Oberhumer's little patches for C++.
+
+2. Literal strings longer than 255 characters were broken.
+
+
+Version 1.05 23-Dec-97
+----------------------
+
+1. Negated character classes containing more than one character were failing if
+PCRE_CASELESS was set at run time.
+
+
+Version 1.04 19-Dec-97
+----------------------
+
+1. Corrected the man page, where some "const" qualifiers had been omitted.
+
+2. Made debugging output print "{0,xxx}" instead of just "{,xxx}" to agree with
+input syntax.
+
+3. Fixed memory leak which occurred when a regex with back references was
+matched with an offsets vector that wasn't big enough. The temporary memory
+that is used in this case wasn't being freed if the match failed.
+
+4. Tidied pcretest to ensure it frees memory that it gets.
+
+5. Temporary memory was being obtained in the case where the passed offsets
+vector was exactly big enough.
+
+6. Corrected definition of offsetof() from change 5 below.
+
+7. I had screwed up change 6 below and broken the rules for the use of
+setjmp(). Now fixed.
+
+
+Version 1.03 18-Dec-97
+----------------------
+
+1. A erroneous regex with a missing opening parenthesis was correctly
+diagnosed, but PCRE attempted to access brastack[-1], which could cause crashes
+on some systems.
+
+2. Replaced offsetof(real_pcre, code) by offsetof(real_pcre, code[0]) because
+it was reported that one broken compiler failed on the former because "code" is
+also an independent variable.
+
+3. The erroneous regex a[]b caused an array overrun reference.
+
+4. A regex ending with a one-character negative class (e.g. /[^k]$/) did not
+fail on data ending with that character. (It was going on too far, and checking
+the next character, typically a binary zero.) This was specific to the
+optimized code for single-character negative classes.
+
+5. Added a contributed patch from the TIN world which does the following:
+
+  + Add an undef for memmove, in case the the system defines a macro for it.
+
+  + Add a definition of offsetof(), in case there isn't one. (I don't know
+    the reason behind this - offsetof() is part of the ANSI standard - but
+    it does no harm).
+
+  + Reduce the ifdef's in pcre.c using macro DPRINTF, thereby eliminating
+    most of the places where whitespace preceded '#'. I have given up and
+    allowed the remaining 2 cases to be at the margin.
+
+  + Rename some variables in pcre to eliminate shadowing. This seems very
+    pedantic, but does no harm, of course.
+
+6. Moved the call to setjmp() into its own function, to get rid of warnings
+from gcc -Wall, and avoided calling it at all unless PCRE_EXTRA is used.
+
+7. Constructs such as \d{8,} were compiling into the equivalent of
+\d{8}\d{0,65527} instead of \d{8}\d* which didn't make much difference to the
+outcome, but in this particular case used more store than had been allocated,
+which caused the bug to be discovered because it threw up an internal error.
+
+8. The debugging code in both pcre and pcretest for outputting the compiled
+form of a regex was going wrong in the case of back references followed by
+curly-bracketed repeats.
+
+
+Version 1.02 12-Dec-97
+----------------------
+
+1. Typos in pcre.3 and comments in the source fixed.
+
+2. Applied a contributed patch to get rid of places where it used to remove
+'const' from variables, and fixed some signed/unsigned and uninitialized
+variable warnings.
+
+3. Added the "runtest" target to Makefile.
+
+4. Set default compiler flag to -O2 rather than just -O.
+
+
+Version 1.01 19-Nov-97
+----------------------
+
+1. PCRE was failing to diagnose unlimited repeat of empty string for patterns
+like /([ab]*)*/, that is, for classes with more than one character in them.
+
+2. Likewise, it wasn't diagnosing patterns with "once-only" subpatterns, such
+as /((?>a*))*/ (a PCRE_EXTRA facility).
+
+
+Version 1.00 18-Nov-97
+----------------------
+
+1. Added compile-time macros to support systems such as SunOS4 which don't have
+memmove() or strerror() but have other things that can be used instead.
+
+2. Arranged that "make clean" removes the executables.
+
+
+Version 0.99 27-Oct-97
+----------------------
+
+1. Fixed bug in code for optimizing classes with only one character. It was
+initializing a 32-byte map regardless, which could cause it to run off the end
+of the memory it had got.
+
+2. Added, conditional on PCRE_EXTRA, the proposed (?>REGEX) construction.
+
+
+Version 0.98 22-Oct-97
+----------------------
+
+1. Fixed bug in code for handling temporary memory usage when there are more
+back references than supplied space in the ovector. This could cause segfaults.
+
+
+Version 0.97 21-Oct-97
+----------------------
+
+1. Added the \X "cut" facility, conditional on PCRE_EXTRA.
+
+2. Optimized negated single characters not to use a bit map.
+
+3. Brought error texts together as macro definitions; clarified some of them;
+fixed one that was wrong - it said "range out of order" when it meant "invalid
+escape sequence".
+
+4. Changed some char * arguments to const char *.
+
+5. Added PCRE_NOTBOL and PCRE_NOTEOL (from POSIX).
+
+6. Added the POSIX-style API wrapper in pcreposix.a and testing facilities in
+pcretest.
+
+
+Version 0.96 16-Oct-97
+----------------------
+
+1. Added a simple "pgrep" utility to the distribution.
+
+2. Fixed an incompatibility with Perl: "{" is now treated as a normal character
+unless it appears in one of the precise forms "{ddd}", "{ddd,}", or "{ddd,ddd}"
+where "ddd" means "one or more decimal digits".
+
+3. Fixed serious bug. If a pattern had a back reference, but the call to
+pcre_exec() didn't supply a large enough ovector to record the related
+identifying subpattern, the match always failed. PCRE now remembers the number
+of the largest back reference, and gets some temporary memory in which to save
+the offsets during matching if necessary, in order to ensure that
+backreferences always work.
+
+4. Increased the compatibility with Perl in a number of ways:
+
+  (a) . no longer matches \n by default; an option PCRE_DOTALL is provided
+      to request this handling. The option can be set at compile or exec time.
+
+  (b) $ matches before a terminating newline by default; an option
+      PCRE_DOLLAR_ENDONLY is provided to override this (but not in multiline
+      mode). The option can be set at compile or exec time.
+
+  (c) The handling of \ followed by a digit other than 0 is now supposed to be
+      the same as Perl's. If the decimal number it represents is less than 10
+      or there aren't that many previous left capturing parentheses, an octal
+      escape is read. Inside a character class, it's always an octal escape,
+      even if it is a single digit.
+
+  (d) An escaped but undefined alphabetic character is taken as a literal,
+      unless PCRE_EXTRA is set. Currently this just reserves the remaining
+      escapes.
+
+  (e) {0} is now permitted. (The previous item is removed from the compiled
+      pattern).
+
+5. Changed all the names of code files so that the basic parts are no longer
+than 10 characters, and abolished the teeny "globals.c" file.
+
+6. Changed the handling of character classes; they are now done with a 32-byte
+bit map always.
+
+7. Added the -d and /D options to pcretest to make it possible to look at the
+internals of compilation without having to recompile pcre.
+
+
+Version 0.95 23-Sep-97
+----------------------
+
+1. Fixed bug in pre-pass concerning escaped "normal" characters such as \x5c or
+\x20 at the start of a run of normal characters. These were being treated as
+real characters, instead of the source characters being re-checked.
+
+
+Version 0.94 18-Sep-97
+----------------------
+
+1. The functions are now thread-safe, with the caveat that the global variables
+containing pointers to malloc() and free() or alternative functions are the
+same for all threads.
+
+2. Get pcre_study() to generate a bitmap of initial characters for non-
+anchored patterns when this is possible, and use it if passed to pcre_exec().
+
+
+Version 0.93 15-Sep-97
+----------------------
+
+1. /(b)|(:+)/ was computing an incorrect first character.
+
+2. Add pcre_study() to the API and the passing of pcre_extra to pcre_exec(),
+but not actually doing anything yet.
+
+3. Treat "-" characters in classes that cannot be part of ranges as literals,
+as Perl does (e.g. [-az] or [az-]).
+
+4. Set the anchored flag if a branch starts with .* or .*? because that tests
+all possible positions.
+
+5. Split up into different modules to avoid including unneeded functions in a
+compiled binary. However, compile and exec are still in one module. The "study"
+function is split off.
+
+6. The character tables are now in a separate module whose source is generated
+by an auxiliary program - but can then be edited by hand if required. There are
+now no calls to isalnum(), isspace(), isdigit(), isxdigit(), tolower() or
+toupper() in the code.
+
+7. Turn the malloc/free funtions variables into pcre_malloc and pcre_free and
+make them global. Abolish the function for setting them, as the caller can now
+set them directly.
+
+
+Version 0.92 11-Sep-97
+----------------------
+
+1. A repeat with a fixed maximum and a minimum of 1 for an ordinary character
+(e.g. /a{1,3}/) was broken (I mis-optimized it).
+
+2. Caseless matching was not working in character classes if the characters in
+the pattern were in upper case.
+
+3. Make ranges like [W-c] work in the same way as Perl for caseless matching.
+
+4. Make PCRE_ANCHORED public and accept as a compile option.
+
+5. Add an options word to pcre_exec() and accept PCRE_ANCHORED and
+PCRE_CASELESS at run time. Add escapes \A and \I to pcretest to cause it to
+pass them.
+
+6. Give an error if bad option bits passed at compile or run time.
+
+7. Add PCRE_MULTILINE at compile and exec time, and (?m) as well. Add \M to
+pcretest to cause it to pass that flag.
+
+8. Add pcre_info(), to get the number of identifying subpatterns, the stored
+options, and the first character, if set.
+
+9. Recognize C+ or C{n,m} where n >= 1 as providing a fixed starting character.
+
+
+Version 0.91 10-Sep-97
+----------------------
+
+1. PCRE was failing to diagnose unlimited repeats of subpatterns that could
+match the empty string as in /(a*)*/. It was looping and ultimately crashing.
+
+2. PCRE was looping on encountering an indefinitely repeated back reference to
+a subpattern that had matched an empty string, e.g. /(a|)\1*/. It now does what
+Perl does - treats the match as successful.
+
+****
diff --git a/8.31/CheckMan b/8.31/CheckMan
new file mode 100644
index 0000000..de01334
--- /dev/null
+++ b/8.31/CheckMan
@@ -0,0 +1,67 @@
+#! /usr/bin/perl
+
+# A script to scan PCRE's man pages to check for typos in the control
+# sequences. I use only a small set of the available repertoire, so it is 
+# straightforward to check that nothing else has slipped in by mistake. This
+# script should be called in the doc directory.
+
+$yield = 0;
+
+while (scalar(@ARGV) > 0)
+  {
+  $line = 0; 
+  $file = shift @ARGV;
+    
+  open (IN, $file) || die "Failed to open $file\n";
+  
+  while (<IN>)
+    {  
+    $line++; 
+    if (/^\s*$/)
+      {
+      printf "Empty line $line of $file\n";
+      $yield = 1;  
+      }   
+    elsif (/^\./)
+      {
+      if (!/^\.\s*$|
+            ^\.B\s+\S| 
+            ^\.TH\s\S|
+            ^\.SH\s\S|
+            ^\.SS\s\S|
+            ^\.TP(?:\s\d+)?\s*$|
+            ^\.ti\s\S| 
+            ^\.SM\s*$|
+            ^\.rs\s*$| 
+            ^\.sp\s*$| 
+            ^\.nf\s*$| 
+            ^\.fi\s*$| 
+            ^\.P\s*$| 
+            ^\.PP\s*$| 
+            ^\.\\"(?:\ HREF)?\s*$|
+            ^\.\\"\sHTML\s<a\shref="[^"]+?">\s*$|
+            ^\.\\"\sHTML\s<a\sname="[^"]+?"><\/a>\s*$|
+            ^\.\\"\s<\/a>\s*$|
+            ^\.\\"\sJOINSH\s*$|
+            ^\.\\"\sJOIN\s*$/x  
+         )
+        {
+        printf "Bad control line $line of $file\n";
+        $yield = 1;
+        }
+      }
+    else
+      {
+      if (/\\[^ef]|\\f[^IBP]/)
+        {
+        printf "Bad backslash in line $line of $file\n";  
+        $yield = 1; 
+        } 
+      }   
+    }
+     
+  close(IN);   
+  }
+  
+exit $yield;
+# End  
diff --git a/8.31/CleanTxt b/8.31/CleanTxt
new file mode 100644
index 0000000..1f42519
--- /dev/null
+++ b/8.31/CleanTxt
@@ -0,0 +1,113 @@
+#! /usr/bin/perl -w
+
+# Script to take the output of nroff -man and remove all the backspacing and
+# the page footers and the screen commands etc so that it is more usefully
+# readable online. In fact, in the latest nroff, intermediate footers don't
+# seem to be generated any more.
+
+$blankcount = 0;
+$lastwascut = 0;
+$firstheader = 1;
+
+# Input on STDIN; output to STDOUT.
+
+while (<STDIN>)
+  {
+  s/\x1b\[\d+m//g;   # Remove screen controls "ESC [ number m"
+  s/.\x8//g;         # Remove "char, backspace"
+
+  # Handle header lines. Retain only the first one we encounter, but remove
+  # the blank line that follows. Any others (e.g. at end of document) and the
+  # following blank line are dropped.
+
+  if (/^PCRE(\w*)\(([13])\)\s+PCRE\1\(\2\)$/)
+    {
+    if ($firstheader)
+      {
+      $firstheader = 0;
+      print;
+      $lastprinted = $_;
+      $lastwascut = 0;
+      }
+    $_=<STDIN>;       # Remove a blank that follows
+    next;
+    }
+
+  # Count runs of empty lines
+
+  if (/^\s*$/)
+    {
+    $blankcount++;
+    $lastwascut = 0;
+    next;
+    }
+
+  # If a chunk of lines has been cut out (page footer) and the next line
+  # has a different indentation, put back one blank line.
+
+  if ($lastwascut && $blankcount < 1 && defined($lastprinted))
+    {
+    ($a) = $lastprinted =~ /^(\s*)/;
+    ($b) = $_ =~ /^(\s*)/;
+    $blankcount++ if ($a ne $b);
+    }
+
+  # We get here only when we have a non-blank line in hand. If it was preceded
+  # by 3 or more blank lines, read the next 3 lines and see if they are blank.
+  # If so, remove all 7 lines, and remember that we have just done a cut.
+
+  if ($blankcount >= 3)
+    {
+    for ($i = 0; $i < 3; $i++)
+      {
+      $next[$i] = <STDIN>;
+      $next[$i] = "" if !defined $next[$i];
+      $next[$i] =~ s/\x1b\[\d+m//g;   # Remove screen controls "ESC [ number m"
+      $next[$i] =~ s/.\x8//g;         # Remove "char, backspace"
+      }
+
+    # Cut out chunks of the form <3 blanks><non-blank><3 blanks>
+
+    if ($next[0] =~ /^\s*$/ &&
+        $next[1] =~ /^\s*$/ &&
+        $next[2] =~ /^\s*$/)
+      {
+      $blankcount -= 3;
+      $lastwascut = 1;
+      }
+
+    # Otherwise output the saved blanks, the current, and the next three
+    # lines. Remember the last printed line.
+
+    else
+      {
+      for ($i = 0; $i < $blankcount; $i++) { print "\n"; }
+      print;
+      for ($i = 0; $i < 3; $i++)
+        {
+        $next[$i] =~ s/.\x8//g;
+        print $next[$i];
+        $lastprinted = $_;
+        }
+      $lastwascut = 0;
+      $blankcount = 0;
+      }
+    }
+
+  # This non-blank line is not preceded by 3 or more blank lines. Output
+  # any blanks there are, and the line. Remember it. Force two blank lines
+  # before headings.
+
+  else
+    {
+    $blankcount = 2 if /^\S/ && !/^Last updated/ && !/^Copyright/ &&
+      defined($lastprinted);
+    for ($i = 0; $i < $blankcount; $i++) { print "\n"; }
+    print;
+    $lastprinted = $_;
+    $lastwascut = 0;
+    $blankcount = 0;
+    }
+  }
+
+# End
diff --git a/8.31/Detrail b/8.31/Detrail
new file mode 100644
index 0000000..1c5c7e9
--- /dev/null
+++ b/8.31/Detrail
@@ -0,0 +1,35 @@
+#!/usr/bin/perl
+
+# This is a script for removing trailing whitespace from lines in files that
+# are listed on the command line.
+
+# This subroutine does the work for one file.
+
+sub detrail {
+my($file) = $_[0];
+my($changed) = 0;
+open(IN, "$file") || die "Can't open $file for input";
+@lines = <IN>;
+close(IN);
+foreach (@lines)
+  {
+  if (/\s+\n$/)
+    {
+    s/\s+\n$/\n/;
+    $changed = 1;
+    }
+  }
+if ($changed)
+  {
+  open(OUT, ">$file") || die "Can't open $file for output";
+  print OUT @lines;
+  close(OUT);
+  }
+}
+
+# This is the main program
+
+$, = "";   # Output field separator
+for ($i = 0; $i < @ARGV; $i++) { &detrail($ARGV[$i]); }
+
+# End
diff --git a/8.31/HACKING b/8.31/HACKING
new file mode 100644
index 0000000..87b8819
--- /dev/null
+++ b/8.31/HACKING
@@ -0,0 +1,468 @@
+Technical Notes about PCRE
+--------------------------
+
+These are very rough technical notes that record potentially useful information 
+about PCRE internals. For information about testing PCRE, see the pcretest 
+documentation and the comment at the head of the RunTest file.
+
+
+Historical note 1
+-----------------
+
+Many years ago I implemented some regular expression functions to an algorithm
+suggested by Martin Richards. These were not Unix-like in form, and were quite
+restricted in what they could do by comparison with Perl. The interesting part
+about the algorithm was that the amount of space required to hold the compiled
+form of an expression was known in advance. The code to apply an expression did
+not operate by backtracking, as the original Henry Spencer code and current
+Perl code does, but instead checked all possibilities simultaneously by keeping
+a list of current states and checking all of them as it advanced through the
+subject string. In the terminology of Jeffrey Friedl's book, it was a "DFA
+algorithm", though it was not a traditional Finite State Machine (FSM). When
+the pattern was all used up, all remaining states were possible matches, and
+the one matching the longest subset of the subject string was chosen. This did
+not necessarily maximize the individual wild portions of the pattern, as is
+expected in Unix and Perl-style regular expressions.
+
+
+Historical note 2
+-----------------
+
+By contrast, the code originally written by Henry Spencer (which was
+subsequently heavily modified for Perl) compiles the expression twice: once in
+a dummy mode in order to find out how much store will be needed, and then for
+real. (The Perl version probably doesn't do this any more; I'm talking about
+the original library.) The execution function operates by backtracking and
+maximizing (or, optionally, minimizing in Perl) the amount of the subject that
+matches individual wild portions of the pattern. This is an "NFA algorithm" in
+Friedl's terminology.
+
+
+OK, here's the real stuff
+-------------------------
+
+For the set of functions that form the "basic" PCRE library (which are
+unrelated to those mentioned above), I tried at first to invent an algorithm
+that used an amount of store bounded by a multiple of the number of characters
+in the pattern, to save on compiling time. However, because of the greater
+complexity in Perl regular expressions, I couldn't do this. In any case, a
+first pass through the pattern is helpful for other reasons. 
+
+
+Support for 16-bit data strings
+-------------------------------
+
+From release 8.30, PCRE supports 16-bit as well as 8-bit data strings, by being 
+compilable in either 8-bit or 16-bit modes, or both. Thus, two different 
+libraries can be created. In the description that follows, the word "short" is 
+used for a 16-bit data quantity, and the word "unit" is used for a quantity
+that is a byte in 8-bit mode and a short in 16-bit mode. However, so as not to
+over-complicate the text, the names of PCRE functions are given in 8-bit form
+only.
+
+
+Computing the memory requirement: how it was
+--------------------------------------------
+
+Up to and including release 6.7, PCRE worked by running a very degenerate first
+pass to calculate a maximum store size, and then a second pass to do the real
+compile - which might use a bit less than the predicted amount of memory. The
+idea was that this would turn out faster than the Henry Spencer code because
+the first pass is degenerate and the second pass can just store stuff straight
+into the vector, which it knows is big enough.
+
+
+Computing the memory requirement: how it is
+-------------------------------------------
+
+By the time I was working on a potential 6.8 release, the degenerate first pass
+had become very complicated and hard to maintain. Indeed one of the early
+things I did for 6.8 was to fix Yet Another Bug in the memory computation. Then
+I had a flash of inspiration as to how I could run the real compile function in
+a "fake" mode that enables it to compute how much memory it would need, while
+actually only ever using a few hundred bytes of working memory, and without too
+many tests of the mode that might slow it down. So I refactored the compiling
+functions to work this way. This got rid of about 600 lines of source. It
+should make future maintenance and development easier. As this was such a major 
+change, I never released 6.8, instead upping the number to 7.0 (other quite 
+major changes were also present in the 7.0 release).
+
+A side effect of this work was that the previous limit of 200 on the nesting
+depth of parentheses was removed. However, there is a downside: pcre_compile()
+runs more slowly than before (30% or more, depending on the pattern) because it
+is doing a full analysis of the pattern. My hope was that this would not be a
+big issue, and in the event, nobody has commented on it.
+
+
+Traditional matching function
+-----------------------------
+
+The "traditional", and original, matching function is called pcre_exec(), and 
+it implements an NFA algorithm, similar to the original Henry Spencer algorithm 
+and the way that Perl works. This is not surprising, since it is intended to be
+as compatible with Perl as possible. This is the function most users of PCRE
+will use most of the time. From release 8.20, if PCRE is compiled with 
+just-in-time (JIT) support, and studying a compiled pattern with JIT is 
+successful, the JIT code is run instead of the normal pcre_exec() code, but the 
+result is the same.
+
+
+Supplementary matching function
+-------------------------------
+
+From PCRE 6.0, there is also a supplementary matching function called 
+pcre_dfa_exec(). This implements a DFA matching algorithm that searches 
+simultaneously for all possible matches that start at one point in the subject 
+string. (Going back to my roots: see Historical Note 1 above.) This function 
+intreprets the same compiled pattern data as pcre_exec(); however, not all the 
+facilities are available, and those that are do not always work in quite the 
+same way. See the user documentation for details.
+
+The algorithm that is used for pcre_dfa_exec() is not a traditional FSM, 
+because it may have a number of states active at one time. More work would be 
+needed at compile time to produce a traditional FSM where only one state is 
+ever active at once. I believe some other regex matchers work this way.
+
+
+Changeable options
+------------------
+
+The /i, /m, or /s options (PCRE_CASELESS, PCRE_MULTILINE, PCRE_DOTALL) may
+change in the middle of patterns. From PCRE 8.13, their processing is handled
+entirely at compile time by generating different opcodes for the different
+settings. The runtime functions do not need to keep track of an options state 
+any more.
+
+
+Format of compiled patterns
+---------------------------
+
+The compiled form of a pattern is a vector of units (bytes in 8-bit mode, or
+shorts in 16-bit mode), containing items of variable length. The first unit in
+an item contains an opcode, and the length of the item is either implicit in
+the opcode or contained in the data that follows it.
+
+In many cases listed below, LINK_SIZE data values are specified for offsets
+within the compiled pattern. LINK_SIZE always specifies a number of bytes. The
+default value for LINK_SIZE is 2, but PCRE can be compiled to use 3-byte or
+4-byte values for these offsets, although this impairs the performance. (3-byte
+LINK_SIZE values are available only in 8-bit mode.) Specifing a LINK_SIZE
+larger than 2 is necessary only when patterns whose compiled length is greater
+than 64K are going to be processed. In this description, we assume the "normal"
+compilation options. Data values that are counts (e.g. for quantifiers) are
+always just two bytes long (one short in 16-bit mode).
+
+Opcodes with no following data
+------------------------------
+
+These items are all just one unit long
+
+  OP_END                 end of pattern
+  OP_ANY                 match any one character other than newline
+  OP_ALLANY              match any one character, including newline
+  OP_ANYBYTE             match any single byte, even in UTF-8 mode
+  OP_SOD                 match start of data: \A
+  OP_SOM,                start of match (subject + offset): \G
+  OP_SET_SOM,            set start of match (\K) 
+  OP_CIRC                ^ (start of data)
+  OP_CIRCM               ^ multiline mode (start of data or after newline)
+  OP_NOT_WORD_BOUNDARY   \W
+  OP_WORD_BOUNDARY       \w
+  OP_NOT_DIGIT           \D
+  OP_DIGIT               \d
+  OP_NOT_HSPACE          \H
+  OP_HSPACE              \h  
+  OP_NOT_WHITESPACE      \S
+  OP_WHITESPACE          \s
+  OP_NOT_VSPACE          \V
+  OP_VSPACE              \v  
+  OP_NOT_WORDCHAR        \W
+  OP_WORDCHAR            \w
+  OP_EODN                match end of data or \n at end: \Z
+  OP_EOD                 match end of data: \z
+  OP_DOLL                $ (end of data, or before final newline)
+  OP_DOLLM               $ multiline mode (end of data or before newline)
+  OP_EXTUNI              match an extended Unicode character 
+  OP_ANYNL               match any Unicode newline sequence 
+  
+  OP_ACCEPT              ) These are Perl 5.10's "backtracking control   
+  OP_COMMIT              ) verbs". If OP_ACCEPT is inside capturing
+  OP_FAIL                ) parentheses, it may be preceded by one or more
+  OP_PRUNE               ) OP_CLOSE, followed by a 2-byte number,
+  OP_SKIP                ) indicating which parentheses must be closed.
+  
+
+Backtracking control verbs with (optional) data
+-----------------------------------------------
+
+(*THEN) without an argument generates the opcode OP_THEN and no following data.
+OP_MARK is followed by the mark name, preceded by a one-unit length, and
+followed by a binary zero. For (*PRUNE), (*SKIP), and (*THEN) with arguments,
+the opcodes OP_PRUNE_ARG, OP_SKIP_ARG, and OP_THEN_ARG are used, with the name
+following in the same format.
+  
+
+Matching literal characters
+---------------------------
+
+The OP_CHAR opcode is followed by a single character that is to be matched 
+casefully. For caseless matching, OP_CHARI is used. In UTF-8 or UTF-16 modes,
+the character may be more than one unit long.
+
+
+Repeating single characters
+---------------------------
+
+The common repeats (*, +, ?), when applied to a single character, use the
+following opcodes, which come in caseful and caseless versions:
+
+  Caseful         Caseless
+  OP_STAR         OP_STARI      
+  OP_MINSTAR      OP_MINSTARI   
+  OP_POSSTAR      OP_POSSTARI   
+  OP_PLUS         OP_PLUSI      
+  OP_MINPLUS      OP_MINPLUSI   
+  OP_POSPLUS      OP_POSPLUSI   
+  OP_QUERY        OP_QUERYI     
+  OP_MINQUERY     OP_MINQUERYI  
+  OP_POSQUERY     OP_POSQUERYI  
+
+Each opcode is followed by the character that is to be repeated. In ASCII mode,
+these are two-unit items; in UTF-8 or UTF-16 modes, the length is variable.
+Those with "MIN" in their names are the minimizing versions. Those with "POS"
+in their names are possessive versions. Other repeats make use of these
+opcodes:
+
+  Caseful         Caseless
+  OP_UPTO         OP_UPTOI    
+  OP_MINUPTO      OP_MINUPTOI 
+  OP_POSUPTO      OP_POSUPTOI 
+  OP_EXACT        OP_EXACTI   
+
+Each of these is followed by a two-byte (one short) count (most significant
+byte first in 8-bit mode) and then the repeated character. OP_UPTO matches from
+0 to the given number. A repeat with a non-zero minimum and a fixed maximum is
+coded as an OP_EXACT followed by an OP_UPTO (or OP_MINUPTO or OPT_POSUPTO).
+
+
+Repeating character types
+-------------------------
+
+Repeats of things like \d are done exactly as for single characters, except
+that instead of a character, the opcode for the type is stored in the data
+unit. The opcodes are:
+
+  OP_TYPESTAR
+  OP_TYPEMINSTAR
+  OP_TYPEPOSSTAR 
+  OP_TYPEPLUS
+  OP_TYPEMINPLUS
+  OP_TYPEPOSPLUS 
+  OP_TYPEQUERY
+  OP_TYPEMINQUERY
+  OP_TYPEPOSQUERY 
+  OP_TYPEUPTO
+  OP_TYPEMINUPTO
+  OP_TYPEPOSUPTO 
+  OP_TYPEEXACT
+
+
+Match by Unicode property
+-------------------------
+
+OP_PROP and OP_NOTPROP are used for positive and negative matches of a 
+character by testing its Unicode property (the \p and \P escape sequences).
+Each is followed by two units that encode the desired property as a type and a
+value.
+
+Repeats of these items use the OP_TYPESTAR etc. set of opcodes, followed by
+three units: OP_PROP or OP_NOTPROP, and then the desired property type and
+value.
+
+
+Character classes
+-----------------
+
+If there is only one character in the class, OP_CHAR or OP_CHARI is used for a
+positive class, and OP_NOT or OP_NOTI for a negative one (that is, for
+something like [^a]). 
+
+Another set of 13 repeating opcodes (called OP_NOTSTAR etc.) are used for
+repeated, negated, single-character classes. The normal single-character
+opcodes (OP_STAR, etc.) are used for repeated positive single-character
+classes.
+
+When there is more than one character in a class and all the characters are
+less than 256, OP_CLASS is used for a positive class, and OP_NCLASS for a
+negative one. In either case, the opcode is followed by a 32-byte (16-short)
+bit map containing a 1 bit for every character that is acceptable. The bits are
+counted from the least significant end of each unit. In caseless mode, bits for
+both cases are set.
+
+The reason for having both OP_CLASS and OP_NCLASS is so that, in UTF-8/16 mode,
+subject characters with values greater than 255 can be handled correctly. For
+OP_CLASS they do not match, whereas for OP_NCLASS they do.
+
+For classes containing characters with values greater than 255, OP_XCLASS is
+used. It optionally uses a bit map (if any characters lie within it), followed
+by a list of pairs (for a range) and single characters. In caseless mode, both
+cases are explicitly listed. There is a flag character than indicates whether
+it is a positive or a negative class.
+
+
+Back references
+---------------
+
+OP_REF (caseful) or OP_REFI (caseless) is followed by two bytes (one short)
+containing the reference number.
+
+
+Repeating character classes and back references
+-----------------------------------------------
+
+Single-character classes are handled specially (see above). This section
+applies to OP_CLASS and OP_REF[I]. In both cases, the repeat information
+follows the base item. The matching code looks at the following opcode to see
+if it is one of
+
+  OP_CRSTAR
+  OP_CRMINSTAR
+  OP_CRPLUS
+  OP_CRMINPLUS
+  OP_CRQUERY
+  OP_CRMINQUERY
+  OP_CRRANGE
+  OP_CRMINRANGE
+
+All but the last two are just single-unit items. The others are followed by
+four bytes (two shorts) of data, comprising the minimum and maximum repeat
+counts. There are no special possessive opcodes for these repeats; a possessive
+repeat is compiled into an atomic group.
+
+
+Brackets and alternation
+------------------------
+
+A pair of non-capturing (round) brackets is wrapped round each expression at
+compile time, so alternation always happens in the context of brackets.
+
+[Note for North Americans: "bracket" to some English speakers, including
+myself, can be round, square, curly, or pointy. Hence this usage rather than 
+"parentheses".]
+
+Non-capturing brackets use the opcode OP_BRA. Originally PCRE was limited to 99
+capturing brackets and it used a different opcode for each one. From release
+3.5, the limit was removed by putting the bracket number into the data for
+higher-numbered brackets. From release 7.0 all capturing brackets are handled
+this way, using the single opcode OP_CBRA.
+
+A bracket opcode is followed by LINK_SIZE bytes which give the offset to the
+next alternative OP_ALT or, if there aren't any branches, to the matching
+OP_KET opcode. Each OP_ALT is followed by LINK_SIZE bytes giving the offset to
+the next one, or to the OP_KET opcode. For capturing brackets, the bracket 
+number immediately follows the offset, always as a 2-byte (one short) item.
+
+OP_KET is used for subpatterns that do not repeat indefinitely, and
+OP_KETRMIN and OP_KETRMAX are used for indefinite repetitions, minimally or
+maximally respectively (see below for possessive repetitions). All three are
+followed by LINK_SIZE bytes giving (as a positive number) the offset back to
+the matching bracket opcode.
+
+If a subpattern is quantified such that it is permitted to match zero times, it
+is preceded by one of OP_BRAZERO, OP_BRAMINZERO, or OP_SKIPZERO. These are
+single-unit opcodes that tell the matcher that skipping the following
+subpattern entirely is a valid branch. In the case of the first two, not 
+skipping the pattern is also valid (greedy and non-greedy). The third is used 
+when a pattern has the quantifier {0,0}. It cannot be entirely discarded, 
+because it may be called as a subroutine from elsewhere in the regex.
+
+A subpattern with an indefinite maximum repetition is replicated in the
+compiled data its minimum number of times (or once with OP_BRAZERO if the
+minimum is zero), with the final copy terminating with OP_KETRMIN or OP_KETRMAX
+as appropriate.
+
+A subpattern with a bounded maximum repetition is replicated in a nested
+fashion up to the maximum number of times, with OP_BRAZERO or OP_BRAMINZERO
+before each replication after the minimum, so that, for example, (abc){2,5} is
+compiled as (abc)(abc)((abc)((abc)(abc)?)?)?, except that each bracketed group 
+has the same number.
+
+When a repeated subpattern has an unbounded upper limit, it is checked to see 
+whether it could match an empty string. If this is the case, the opcode in the 
+final replication is changed to OP_SBRA or OP_SCBRA. This tells the matcher
+that it needs to check for matching an empty string when it hits OP_KETRMIN or
+OP_KETRMAX, and if so, to break the loop.
+
+Possessive brackets
+-------------------
+
+When a repeated group (capturing or non-capturing) is marked as possessive by
+the "+" notation, e.g. (abc)++, different opcodes are used. Their names all
+have POS on the end, e.g. OP_BRAPOS instead of OP_BRA and OP_SCPBRPOS instead 
+of OP_SCBRA. The end of such a group is marked by OP_KETRPOS. If the minimum 
+repetition is zero, the group is preceded by OP_BRAPOSZERO.
+
+
+Assertions
+----------
+
+Forward assertions are just like other subpatterns, but starting with one of
+the opcodes OP_ASSERT or OP_ASSERT_NOT. Backward assertions use the opcodes
+OP_ASSERTBACK and OP_ASSERTBACK_NOT, and the first opcode inside the assertion
+is OP_REVERSE, followed by a two byte (one short) count of the number of
+characters to move back the pointer in the subject string. In ASCII mode, the 
+count is a number of units, but in UTF-8/16 mode each character may occupy more
+than one unit. A separate count is present in each alternative of a lookbehind
+assertion, allowing them to have different fixed lengths.
+
+
+Once-only (atomic) subpatterns
+------------------------------
+
+These are also just like other subpatterns, but they start with the opcode
+OP_ONCE. The check for matching an empty string in an unbounded repeat is 
+handled entirely at runtime, so there is just this one opcode.
+
+
+Conditional subpatterns
+-----------------------
+
+These are like other subpatterns, but they start with the opcode OP_COND, or
+OP_SCOND for one that might match an empty string in an unbounded repeat. If
+the condition is a back reference, this is stored at the start of the
+subpattern using the opcode OP_CREF followed by two bytes (one short)
+containing the reference number. OP_NCREF is used instead if the reference was
+generated by name (so that the runtime code knows to check for duplicate
+names).
+
+If the condition is "in recursion" (coded as "(?(R)"), or "in recursion of
+group x" (coded as "(?(Rx)"), the group number is stored at the start of the
+subpattern using the opcode OP_RREF or OP_NRREF (cf OP_NCREF), and a value of
+zero for "the whole pattern". For a DEFINE condition, just the single unit
+OP_DEF is used (it has no associated data). Otherwise, a conditional subpattern
+always starts with one of the assertions.
+
+
+Recursion
+---------
+
+Recursion either matches the current regex, or some subexpression. The opcode
+OP_RECURSE is followed by an value which is the offset to the starting bracket
+from the start of the whole pattern. From release 6.5, OP_RECURSE is 
+automatically wrapped inside OP_ONCE brackets (because otherwise some patterns 
+broke it). OP_RECURSE is also used for "subroutine" calls, even though they 
+are not strictly a recursion.
+
+
+Callout
+-------
+
+OP_CALLOUT is followed by one unit of data that holds a callout number in the
+range 0 to 254 for manual callouts, or 255 for an automatic callout. In both 
+cases there follows a two-byte (one short) value giving the offset in the
+pattern to the start of the following item, and another two-byte (one short)
+item giving the length of the next item.
+
+
+Philip Hazel
+February 2012
diff --git a/8.31/INSTALL b/8.31/INSTALL
new file mode 100644
index 0000000..7d1c323
--- /dev/null
+++ b/8.31/INSTALL
@@ -0,0 +1,365 @@
+Installation Instructions
+*************************
+
+Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
+2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+
+   Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.  This file is offered as-is,
+without warranty of any kind.
+
+Basic Installation
+==================
+
+   Briefly, the shell commands `./configure; make; make install' should
+configure, build, and install this package.  The following
+more-detailed instructions are generic; see the `README' file for
+instructions specific to this package.  Some packages provide this
+`INSTALL' file but do not implement all of the features documented
+below.  The lack of an optional feature in a given package is not
+necessarily a bug.  More recommendations for GNU packages can be found
+in *note Makefile Conventions: (standards)Makefile Conventions.
+
+   The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation.  It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions.  Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+   It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring.  Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.
+
+   If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release.  If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+   The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'.  You need `configure.ac' if
+you want to change it or regenerate `configure' using a newer version
+of `autoconf'.
+
+   The simplest way to compile this package is:
+
+  1. `cd' to the directory containing the package's source code and type
+     `./configure' to configure the package for your system.
+
+     Running `configure' might take a while.  While running, it prints
+     some messages telling which features it is checking for.
+
+  2. Type `make' to compile the package.
+
+  3. Optionally, type `make check' to run any self-tests that come with
+     the package, generally using the just-built uninstalled binaries.
+
+  4. Type `make install' to install the programs and any data files and
+     documentation.  When installing into a prefix owned by root, it is
+     recommended that the package be configured and built as a regular
+     user, and only the `make install' phase executed with root
+     privileges.
+
+  5. Optionally, type `make installcheck' to repeat any self-tests, but
+     this time using the binaries in their final installed location.
+     This target does not install anything.  Running this target as a
+     regular user, particularly if the prior `make install' required
+     root privileges, verifies that the installation completed
+     correctly.
+
+  6. You can remove the program binaries and object files from the
+     source code directory by typing `make clean'.  To also remove the
+     files that `configure' created (so you can compile the package for
+     a different kind of computer), type `make distclean'.  There is
+     also a `make maintainer-clean' target, but that is intended mainly
+     for the package's developers.  If you use it, you may have to get
+     all sorts of other programs in order to regenerate files that came
+     with the distribution.
+
+  7. Often, you can also type `make uninstall' to remove the installed
+     files again.  In practice, not all packages have tested that
+     uninstallation works correctly, even though it is required by the
+     GNU Coding Standards.
+
+  8. Some packages, particularly those that use Automake, provide `make
+     distcheck', which can by used by developers to test that all other
+     targets like `make install' and `make uninstall' work correctly.
+     This target is generally not run by end users.
+
+Compilers and Options
+=====================
+
+   Some systems require unusual options for compilation or linking that
+the `configure' script does not know about.  Run `./configure --help'
+for details on some of the pertinent environment variables.
+
+   You can give `configure' initial values for configuration parameters
+by setting variables in the command line or in the environment.  Here
+is an example:
+
+     ./configure CC=c99 CFLAGS=-g LIBS=-lposix
+
+   *Note Defining Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+   You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory.  To do this, you can use GNU `make'.  `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script.  `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.  This
+is known as a "VPATH" build.
+
+   With a non-GNU `make', it is safer to compile the package for one
+architecture at a time in the source code directory.  After you have
+installed the package for one architecture, use `make distclean' before
+reconfiguring for another architecture.
+
+   On MacOS X 10.5 and later systems, you can create libraries and
+executables that work on multiple system types--known as "fat" or
+"universal" binaries--by specifying multiple `-arch' options to the
+compiler but only a single `-arch' option to the preprocessor.  Like
+this:
+
+     ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
+                 CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
+                 CPP="gcc -E" CXXCPP="g++ -E"
+
+   This is not guaranteed to produce working output in all cases, you
+may have to build one architecture at a time and combine the results
+using the `lipo' tool if you have problems.
+
+Installation Names
+==================
+
+   By default, `make install' installs the package's commands under
+`/usr/local/bin', include files under `/usr/local/include', etc.  You
+can specify an installation prefix other than `/usr/local' by giving
+`configure' the option `--prefix=PREFIX', where PREFIX must be an
+absolute file name.
+
+   You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files.  If you
+pass the option `--exec-prefix=PREFIX' to `configure', the package uses
+PREFIX as the prefix for installing programs and libraries.
+Documentation and other data files still use the regular prefix.
+
+   In addition, if you use an unusual directory layout you can give
+options like `--bindir=DIR' to specify different values for particular
+kinds of files.  Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.  In general, the
+default for these options is expressed in terms of `${prefix}', so that
+specifying just `--prefix' will affect all of the other directory
+specifications that were not explicitly provided.
+
+   The most portable way to affect installation locations is to pass the
+correct locations to `configure'; however, many packages provide one or
+both of the following shortcuts of passing variable assignments to the
+`make install' command line to change installation locations without
+having to reconfigure or recompile.
+
+   The first method involves providing an override variable for each
+affected directory.  For example, `make install
+prefix=/alternate/directory' will choose an alternate location for all
+directory configuration variables that were expressed in terms of
+`${prefix}'.  Any directories that were specified during `configure',
+but not in terms of `${prefix}', must each be overridden at install
+time for the entire installation to be relocated.  The approach of
+makefile variable overrides for each directory variable is required by
+the GNU Coding Standards, and ideally causes no recompilation.
+However, some platforms have known limitations with the semantics of
+shared libraries that end up requiring recompilation when using this
+method, particularly noticeable in packages that use GNU Libtool.
+
+   The second method involves providing the `DESTDIR' variable.  For
+example, `make install DESTDIR=/alternate/directory' will prepend
+`/alternate/directory' before all installation names.  The approach of
+`DESTDIR' overrides is not required by the GNU Coding Standards, and
+does not work on platforms that have drive letters.  On the other hand,
+it does better at avoiding recompilation issues, and works well even
+when some directory options were not specified in terms of `${prefix}'
+at `configure' time.
+
+Optional Features
+=================
+
+   If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+   Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System).  The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+   For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+   Some packages offer the ability to configure how verbose the
+execution of `make' will be.  For these packages, running `./configure
+--enable-silent-rules' sets the default to minimal output, which can be
+overridden with `make V=1'; while running `./configure
+--disable-silent-rules' sets the default to verbose, which can be
+overridden with `make V=0'.
+
+Particular systems
+==================
+
+   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU
+CC is not installed, it is recommended to use the following options in
+order to use an ANSI C compiler:
+
+     ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
+
+and if that doesn't work, install pre-built binaries of GCC for HP-UX.
+
+   On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
+parse its `<wchar.h>' header file.  The option `-nodtk' can be used as
+a workaround.  If GNU CC is not installed, it is therefore recommended
+to try
+
+     ./configure CC="cc"
+
+and if that doesn't work, try
+
+     ./configure CC="cc -nodtk"
+
+   On Solaris, don't put `/usr/ucb' early in your `PATH'.  This
+directory contains several dysfunctional programs; working variants of
+these programs are available in `/usr/bin'.  So, if you need `/usr/ucb'
+in your `PATH', put it _after_ `/usr/bin'.
+
+   On Haiku, software installed for all users goes in `/boot/common',
+not `/usr/local'.  It is recommended to use the following options:
+
+     ./configure --prefix=/boot/common
+
+Specifying the System Type
+==========================
+
+   There may be some features `configure' cannot figure out
+automatically, but needs to determine by the type of machine the package
+will run on.  Usually, assuming the package is built to be run on the
+_same_ architectures, `configure' can figure that out, but if it prints
+a message saying it cannot guess the machine type, give it the
+`--build=TYPE' option.  TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+     CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+     OS
+     KERNEL-OS
+
+   See the file `config.sub' for the possible values of each field.  If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the machine type.
+
+   If you are _building_ compiler tools for cross-compiling, you should
+use the option `--target=TYPE' to select the type of system they will
+produce code for.
+
+   If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the
+"host" platform (i.e., that on which the generated programs will
+eventually be run) with `--host=TYPE'.
+
+Sharing Defaults
+================
+
+   If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists.  Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Defining Variables
+==================
+
+   Variables not defined in a site shell script can be set in the
+environment passed to `configure'.  However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost.  In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'.  For example:
+
+     ./configure CC=/usr/local2/bin/gcc
+
+causes the specified `gcc' to be used as the C compiler (unless it is
+overridden in the site shell script).
+
+Unfortunately, this technique does not work for `CONFIG_SHELL' due to
+an Autoconf bug.  Until the bug is fixed you can use this workaround:
+
+     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
+
+`configure' Invocation
+======================
+
+   `configure' recognizes the following options to control how it
+operates.
+
+`--help'
+`-h'
+     Print a summary of all of the options to `configure', and exit.
+
+`--help=short'
+`--help=recursive'
+     Print a summary of the options unique to this package's
+     `configure', and exit.  The `short' variant lists options used
+     only in the top level, while the `recursive' variant lists options
+     also present in any nested packages.
+
+`--version'
+`-V'
+     Print the version of Autoconf used to generate the `configure'
+     script, and exit.
+
+`--cache-file=FILE'
+     Enable the cache: use and save the results of the tests in FILE,
+     traditionally `config.cache'.  FILE defaults to `/dev/null' to
+     disable caching.
+
+`--config-cache'
+`-C'
+     Alias for `--cache-file=config.cache'.
+
+`--quiet'
+`--silent'
+`-q'
+     Do not print messages saying which checks are being made.  To
+     suppress all normal output, redirect it to `/dev/null' (any error
+     messages will still be shown).
+
+`--srcdir=DIR'
+     Look for the package's source code in directory DIR.  Usually
+     `configure' can determine that directory automatically.
+
+`--prefix=DIR'
+     Use DIR as the installation prefix.  *note Installation Names::
+     for more details, including other options available for fine-tuning
+     the installation locations.
+
+`--no-create'
+`-n'
+     Run the configure checks, but stop before creating any output
+     files.
+
+`configure' also accepts some other, not widely useful, options.  Run
+`configure --help' for more details.
+
diff --git a/8.31/LICENCE b/8.31/LICENCE
new file mode 100644
index 0000000..5ce31a8
--- /dev/null
+++ b/8.31/LICENCE
@@ -0,0 +1,92 @@
+PCRE LICENCE
+------------
+
+PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+Release 8 of PCRE is distributed under the terms of the "BSD" licence, as
+specified below. The documentation for PCRE, supplied in the "doc"
+directory, is distributed under the same terms as the software itself.
+
+The basic library functions are written in C and are freestanding. Also
+included in the distribution is a set of C++ wrapper functions, and a
+just-in-time compiler that can be used to optimize pattern matching. These
+are both optional features that can be omitted when the library is built.
+
+
+THE BASIC LIBRARY FUNCTIONS
+---------------------------
+
+Written by:       Philip Hazel
+Email local part: ph10
+Email domain:     cam.ac.uk
+
+University of Cambridge Computing Service,
+Cambridge, England.
+
+Copyright (c) 1997-2012 University of Cambridge
+All rights reserved.
+
+
+PCRE JUST-IN-TIME COMPILATION SUPPORT
+-------------------------------------
+
+Written by:       Zoltan Herczeg
+Email local part: hzmester
+Emain domain:     freemail.hu
+
+Copyright(c) 2010-2012 Zoltan Herczeg
+All rights reserved.
+
+
+STACK-LESS JUST-IN-TIME COMPILER
+--------------------------------
+
+Written by:       Zoltan Herczeg
+Email local part: hzmester
+Emain domain:     freemail.hu
+
+Copyright(c) 2009-2012 Zoltan Herczeg
+All rights reserved.
+
+
+THE C++ WRAPPER FUNCTIONS
+-------------------------
+
+Contributed by:   Google Inc.
+
+Copyright (c) 2007-2012, Google Inc.
+All rights reserved.
+
+
+THE "BSD" LICENCE
+-----------------
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the name of Google
+      Inc. nor the names of their contributors may be used to endorse or
+      promote products derived from this software without specific prior
+      written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+End
diff --git a/8.31/NEWS b/8.31/NEWS
new file mode 100644
index 0000000..3c932a4
--- /dev/null
+++ b/8.31/NEWS
@@ -0,0 +1,571 @@
+News about PCRE releases
+------------------------
+
+Release 8.31 06-July-2012
+-------------------------
+
+This is mainly a bug-fixing release, with a small number of developments:
+
+. The JIT compiler now supports partial matching and the (*MARK) and
+  (*COMMIT) verbs.
+
+. PCRE_INFO_MAXLOOKBEHIND can be used to find the longest lookbehing in a
+  pattern.
+
+. There should be a performance improvement when using the heap instead of the
+  stack for recursion.
+
+. pcregrep can now be linked with libedit as an alternative to libreadline.
+
+. pcregrep now has a --file-list option where the list of files to scan is
+  given as a file.
+
+. pcregrep now recognizes binary files and there are related options.
+
+. The Unicode tables have been updated to 6.1.0.
+
+As always, the full list of changes is in the ChangeLog file.
+
+
+Release 8.30 04-February-2012
+-----------------------------
+
+Release 8.30 introduces a major new feature: support for 16-bit character
+strings, compiled as a separate library. There are a few changes to the
+8-bit library, in addition to some bug fixes.
+
+. The pcre_info() function, which has been obsolete for over 10 years, has
+  been removed.
+
+. When a compiled pattern was saved to a file and later reloaded on a host
+  with different endianness, PCRE used automatically to swap the bytes in some
+  of the data fields. With the advent of the 16-bit library, where more of this
+  swapping is needed, it is no longer done automatically. Instead, the bad
+  endianness is detected and a specific error is given. The user can then call
+  a new function called pcre_pattern_to_host_byte_order() (or an equivalent
+  16-bit function) to do the swap.
+
+. In UTF-8 mode, the values 0xd800 to 0xdfff are not legal Unicode
+  code points and are now faulted. (They are the so-called "surrogates"
+  that are reserved for coding high values in UTF-16.)
+
+
+Release 8.21 12-Dec-2011
+------------------------
+
+This is almost entirely a bug-fix release. The only new feature is the ability
+to obtain the size of the memory used by the JIT compiler.
+
+
+Release 8.20 21-Oct-2011
+------------------------
+
+The main change in this release is the inclusion of Zoltan Herczeg's
+just-in-time compiler support, which can be accessed by building PCRE with
+--enable-jit. Large performance benefits can be had in many situations. 8.20
+also fixes an unfortunate bug that was introduced in 8.13 as well as tidying up
+a number of infelicities and differences from Perl.
+
+
+Release 8.13 16-Aug-2011
+------------------------
+
+This is mainly a bug-fix release. There has been a lot of internal refactoring.
+The Unicode tables have been updated. The only new feature in the library is
+the passing of *MARK information to callouts. Some additions have been made to
+pcretest to make testing easier and more comprehensive. There is a new option
+for pcregrep to adjust its internal buffer size.
+
+
+Release 8.12 15-Jan-2011
+------------------------
+
+This release fixes some bugs in pcregrep, one of which caused the tests to fail
+on 64-bit big-endian systems. There are no changes to the code of the library.
+
+
+Release 8.11 10-Dec-2010
+------------------------
+
+A number of bugs in the library and in pcregrep have been fixed. As always, see
+ChangeLog for details. The following are the non-bug-fix changes:
+
+. Added --match-limit and --recursion-limit to pcregrep.
+
+. Added an optional parentheses number to the -o and --only-matching options
+  of pcregrep.
+
+. Changed the way PCRE_PARTIAL_HARD affects the matching of $, \z, \Z, \b, and
+  \B.
+
+. Added PCRE_ERROR_SHORTUTF8 to make it possible to distinguish between a
+  bad UTF-8 sequence and one that is incomplete when using PCRE_PARTIAL_HARD.
+
+. Recognize (*NO_START_OPT) at the start of a pattern to set the PCRE_NO_
+  START_OPTIMIZE option, which is now allowed at compile time
+
+
+Release 8.10 25-Jun-2010
+------------------------
+
+There are two major additions: support for (*MARK) and friends, and the option
+PCRE_UCP, which changes the behaviour of \b, \d, \s, and \w (and their
+opposites) so that they make use of Unicode properties. There are also a number
+of lesser new features, and several bugs have been fixed. A new option,
+--line-buffered, has been added to pcregrep, for use when it is connected to
+pipes.
+
+
+Release 8.02 19-Mar-2010
+------------------------
+
+Another bug-fix release.
+
+
+Release 8.01 19-Jan-2010
+------------------------
+
+This is a bug-fix release. Several bugs in the code itself and some bugs and
+infelicities in the build system have been fixed.
+
+
+Release 8.00 19-Oct-09
+----------------------
+
+Bugs have been fixed in the library and in pcregrep. There are also some
+enhancements. Restrictions on patterns used for partial matching have been
+removed, extra information is given for partial matches, the partial matching
+process has been improved, and an option to make a partial match override a
+full match is available. The "study" process has been enhanced by finding a
+lower bound matching length. Groups with duplicate numbers may now have
+duplicated names without the use of PCRE_DUPNAMES. However, they may not have
+different names. The documentation has been revised to reflect these changes.
+The version number has been expanded to 3 digits as it is clear that the rate
+of change is not slowing down.
+
+
+Release 7.9 11-Apr-09
+---------------------
+
+Mostly bugfixes and tidies with just a couple of minor functional additions.
+
+
+Release 7.8 05-Sep-08
+---------------------
+
+More bug fixes, plus a performance improvement in Unicode character property
+lookup.
+
+
+Release 7.7 07-May-08
+---------------------
+
+This is once again mainly a bug-fix release, but there are a couple of new
+features.
+
+
+Release 7.6 28-Jan-08
+---------------------
+
+The main reason for having this release so soon after 7.5 is because it fixes a
+potential buffer overflow problem in pcre_compile() when run in UTF-8 mode. In
+addition, the CMake configuration files have been brought up to date.
+
+
+Release 7.5 10-Jan-08
+---------------------
+
+This is mainly a bug-fix release. However the ability to link pcregrep with
+libz or libbz2 and the ability to link pcretest with libreadline have been
+added. Also the --line-offsets and --file-offsets options were added to
+pcregrep.
+
+
+Release 7.4 21-Sep-07
+---------------------
+
+The only change of specification is the addition of options to control whether
+\R matches any Unicode line ending (the default) or just CR, LF, and CRLF.
+Otherwise, the changes are bug fixes and a refactoring to reduce the number of
+relocations needed in a shared library. There have also been some documentation
+updates, in particular, some more information about using CMake to build PCRE
+has been added to the NON-UNIX-USE file.
+
+
+Release 7.3 28-Aug-07
+---------------------
+
+Most changes are bug fixes. Some that are not:
+
+1. There is some support for Perl 5.10's experimental "backtracking control
+   verbs" such as (*PRUNE).
+
+2. UTF-8 checking is now as per RFC 3629 instead of RFC 2279; this is more
+   restrictive in the strings it accepts.
+
+3. Checking for potential integer overflow has been made more dynamic, and as a
+   consequence there is no longer a hard limit on the size of a subpattern that
+   has a limited repeat count.
+
+4. When CRLF is a valid line-ending sequence, pcre_exec() and pcre_dfa_exec()
+   no longer advance by two characters instead of one when an unanchored match
+   fails at CRLF if there are explicit CR or LF matches within the pattern.
+   This gets rid of some anomalous effects that previously occurred.
+
+5. Some PCRE-specific settings for varying the newline options at the start of
+   a pattern have been added.
+
+
+Release 7.2 19-Jun-07
+---------------------
+
+WARNING: saved patterns that were compiled by earlier versions of PCRE must be
+recompiled for use with 7.2 (necessitated by the addition of \K, \h, \H, \v,
+and \V).
+
+Correction to the notes for 7.1: the note about shared libraries for Windows is
+wrong. Previously, three libraries were built, but each could function
+independently. For example, the pcreposix library also included all the
+functions from the basic pcre library. The change is that the three libraries
+are no longer independent. They are like the Unix libraries. To use the
+pcreposix functions, for example, you need to link with both the pcreposix and
+the basic pcre library.
+
+Some more features from Perl 5.10 have been added:
+
+  (?-n) and (?+n) relative references for recursion and subroutines.
+
+  (?(-n) and (?(+n) relative references as conditions.
+
+  \k{name} and \g{name} are synonyms for \k<name>.
+
+  \K to reset the start of the matched string; for example, (foo)\Kbar
+  matches bar preceded by foo, but only sets bar as the matched string.
+
+  (?| introduces a group where the capturing parentheses in each alternative
+  start from the same number; for example, (?|(abc)|(xyz)) sets capturing
+  parentheses number 1 in both cases.
+
+  \h, \H, \v, \V match horizontal and vertical whitespace, respectively.
+
+
+Release 7.1 24-Apr-07
+---------------------
+
+There is only one new feature in this release: a linebreak setting of
+PCRE_NEWLINE_ANYCRLF. It is a cut-down version of PCRE_NEWLINE_ANY, which
+recognizes only CRLF, CR, and LF as linebreaks.
+
+A few bugs are fixed (see ChangeLog for details), but the major change is a
+complete re-implementation of the build system. This now has full Autotools
+support and so is now "standard" in some sense. It should help with compiling
+PCRE in a wide variety of environments.
+
+NOTE: when building shared libraries for Windows, three dlls are now built,
+called libpcre, libpcreposix, and libpcrecpp. Previously, everything was
+included in a single dll.
+
+Another important change is that the dftables auxiliary program is no longer
+compiled and run at "make" time by default. Instead, a default set of character
+tables (assuming ASCII coding) is used. If you want to use dftables to generate
+the character tables as previously, add --enable-rebuild-chartables to the
+"configure" command. You must do this if you are compiling PCRE to run on a
+system that uses EBCDIC code.
+
+There is a discussion about character tables in the README file. The default is
+not to use dftables so that that there is no problem when cross-compiling.
+
+
+Release 7.0 19-Dec-06
+---------------------
+
+This release has a new major number because there have been some internal
+upheavals to facilitate the addition of new optimizations and other facilities,
+and to make subsequent maintenance and extension easier. Compilation is likely
+to be a bit slower, but there should be no major effect on runtime performance.
+Previously compiled patterns are NOT upwards compatible with this release. If
+you have saved compiled patterns from a previous release, you will have to
+re-compile them. Important changes that are visible to users are:
+
+1. The Unicode property tables have been updated to Unicode 5.0.0, which adds
+   some more scripts.
+
+2. The option PCRE_NEWLINE_ANY causes PCRE to recognize any Unicode newline
+   sequence as a newline.
+
+3. The \R escape matches a single Unicode newline sequence as a single unit.
+
+4. New features that will appear in Perl 5.10 are now in PCRE. These include
+   alternative Perl syntax for named parentheses, and Perl syntax for
+   recursion.
+
+5. The C++ wrapper interface has been extended by the addition of a
+   QuoteMeta function and the ability to allow copy construction and
+   assignment.
+
+For a complete list of changes, see the ChangeLog file.
+
+
+Release 6.7 04-Jul-06
+---------------------
+
+The main additions to this release are the ability to use the same name for
+multiple sets of parentheses, and support for CRLF line endings in both the
+library and pcregrep (and in pcretest for testing).
+
+Thanks to Ian Taylor, the stack usage for many kinds of pattern has been
+significantly reduced for certain subject strings.
+
+
+Release 6.5 01-Feb-06
+---------------------
+
+Important changes in this release:
+
+1. A number of new features have been added to pcregrep.
+
+2. The Unicode property tables have been updated to Unicode 4.1.0, and the
+   supported properties have been extended with script names such as "Arabic",
+   and the derived properties "Any" and "L&". This has necessitated a change to
+   the interal format of compiled patterns. Any saved compiled patterns that
+   use \p or \P must be recompiled.
+
+3. The specification of recursion in patterns has been changed so that all
+   recursive subpatterns are automatically treated as atomic groups. Thus, for
+   example, (?R) is treated as if it were (?>(?R)). This is necessary because
+   otherwise there are situations where recursion does not work.
+
+See the ChangeLog for a complete list of changes, which include a number of bug
+fixes and tidies.
+
+
+Release 6.0 07-Jun-05
+---------------------
+
+The release number has been increased to 6.0 because of the addition of several
+major new pieces of functionality.
+
+A new function, pcre_dfa_exec(), which implements pattern matching using a DFA
+algorithm, has been added. This has a number of advantages for certain cases,
+though it does run more slowly, and lacks the ability to capture substrings. On
+the other hand, it does find all matches, not just the first, and it works
+better for partial matching. The pcrematching man page discusses the
+differences.
+
+The pcretest program has been enhanced so that it can make use of the new
+pcre_dfa_exec() matching function and the extra features it provides.
+
+The distribution now includes a C++ wrapper library. This is built
+automatically if a C++ compiler is found. The pcrecpp man page discusses this
+interface.
+
+The code itself has been re-organized into many more files, one for each
+function, so it no longer requires everything to be linked in when static
+linkage is used. As a consequence, some internal functions have had to have
+their names exposed. These functions all have names starting with _pcre_. They
+are undocumented, and are not intended for use by outside callers.
+
+The pcregrep program has been enhanced with new functionality such as
+multiline-matching and options for output more matching context. See the
+ChangeLog for a complete list of changes to the library and the utility
+programs.
+
+
+Release 5.0 13-Sep-04
+---------------------
+
+The licence under which PCRE is released has been changed to the more
+conventional "BSD" licence.
+
+In the code, some bugs have been fixed, and there are also some major changes
+in this release (which is why I've increased the number to 5.0). Some changes
+are internal rearrangements, and some provide a number of new facilities. The
+new features are:
+
+1. There's an "automatic callout" feature that inserts callouts before every
+   item in the regex, and there's a new callout field that gives the position
+   in the pattern - useful for debugging and tracing.
+
+2. The extra_data structure can now be used to pass in a set of character
+   tables at exec time. This is useful if compiled regex are saved and re-used
+   at a later time when the tables may not be at the same address. If the
+   default internal tables are used, the pointer saved with the compiled
+   pattern is now set to NULL, which means that you don't need to do anything
+   special unless you are using custom tables.
+
+3. It is possible, with some restrictions on the content of the regex, to
+   request "partial" matching. A special return code is given if all of the
+   subject string matched part of the regex. This could be useful for testing
+   an input field as it is being typed.
+
+4. There is now some optional support for Unicode character properties, which
+   means that the patterns items such as \p{Lu} and \X can now be used. Only
+   the general category properties are supported. If PCRE is compiled with this
+   support, an additional 90K data structure is include, which increases the
+   size of the library dramatically.
+
+5. There is support for saving compiled patterns and re-using them later.
+
+6. There is support for running regular expressions that were compiled on a
+   different host with the opposite endianness.
+
+7. The pcretest program has been extended to accommodate the new features.
+
+The main internal rearrangement is that sequences of literal characters are no
+longer handled as strings. Instead, each character is handled on its own. This
+makes some UTF-8 handling easier, and makes the support of partial matching
+possible. Compiled patterns containing long literal strings will be larger as a
+result of this change; I hope that performance will not be much affected.
+
+
+Release 4.5 01-Dec-03
+---------------------
+
+Again mainly a bug-fix and tidying release, with only a couple of new features:
+
+1. It's possible now to compile PCRE so that it does not use recursive
+function calls when matching. Instead it gets memory from the heap. This slows
+things down, but may be necessary on systems with limited stacks.
+
+2. UTF-8 string checking has been tightened to reject overlong sequences and to
+check that a starting offset points to the start of a character. Failure of the
+latter returns a new error code: PCRE_ERROR_BADUTF8_OFFSET.
+
+3. PCRE can now be compiled for systems that use EBCDIC code.
+
+
+Release 4.4 21-Aug-03
+---------------------
+
+This is mainly a bug-fix and tidying release. The only new feature is that PCRE
+checks UTF-8 strings for validity by default. There is an option to suppress
+this, just in case anybody wants that teeny extra bit of performance.
+
+
+Releases 4.1 - 4.3
+------------------
+
+Sorry, I forgot about updating the NEWS file for these releases. Please take a
+look at ChangeLog.
+
+
+Release 4.0 17-Feb-03
+---------------------
+
+There have been a lot of changes for the 4.0 release, adding additional
+functionality and mending bugs. Below is a list of the highlights of the new
+functionality. For full details of these features, please consult the
+documentation. For a complete list of changes, see the ChangeLog file.
+
+1. Support for Perl's \Q...\E escapes.
+
+2. "Possessive quantifiers" ?+, *+, ++, and {,}+ which come from Sun's Java
+package. They provide some syntactic sugar for simple cases of "atomic
+grouping".
+
+3. Support for the \G assertion. It is true when the current matching position
+is at the start point of the match.
+
+4. A new feature that provides some of the functionality that Perl provides
+with (?{...}). The facility is termed a "callout". The way it is done in PCRE
+is for the caller to provide an optional function, by setting pcre_callout to
+its entry point. To get the function called, the regex must include (?C) at
+appropriate points.
+
+5. Support for recursive calls to individual subpatterns. This makes it really
+easy to get totally confused.
+
+6. Support for named subpatterns. The Python syntax (?P<name>...) is used to
+name a group.
+
+7. Several extensions to UTF-8 support; it is now fairly complete. There is an
+option for pcregrep to make it operate in UTF-8 mode.
+
+8. The single man page has been split into a number of separate man pages.
+These also give rise to individual HTML pages which are put in a separate
+directory. There is an index.html page that lists them all. Some hyperlinking
+between the pages has been installed.
+
+
+Release 3.5 15-Aug-01
+---------------------
+
+1. The configuring system has been upgraded to use later versions of autoconf
+and libtool. By default it builds both a shared and a static library if the OS
+supports it. You can use --disable-shared or --disable-static on the configure
+command if you want only one of them.
+
+2. The pcretest utility is now installed along with pcregrep because it is
+useful for users (to test regexs) and by doing this, it automatically gets
+relinked by libtool. The documentation has been turned into a man page, so
+there are now .1, .txt, and .html versions in /doc.
+
+3. Upgrades to pcregrep:
+   (i)   Added long-form option names like gnu grep.
+   (ii)  Added --help to list all options with an explanatory phrase.
+   (iii) Added -r, --recursive to recurse into sub-directories.
+   (iv)  Added -f, --file to read patterns from a file.
+
+4. Added --enable-newline-is-cr and --enable-newline-is-lf to the configure
+script, to force use of CR or LF instead of \n in the source. On non-Unix
+systems, the value can be set in config.h.
+
+5. The limit of 200 on non-capturing parentheses is a _nesting_ limit, not an
+absolute limit. Changed the text of the error message to make this clear, and
+likewise updated the man page.
+
+6. The limit of 99 on the number of capturing subpatterns has been removed.
+The new limit is 65535, which I hope will not be a "real" limit.
+
+
+Release 3.3 01-Aug-00
+---------------------
+
+There is some support for UTF-8 character strings. This is incomplete and
+experimental. The documentation describes what is and what is not implemented.
+Otherwise, this is just a bug-fixing release.
+
+
+Release 3.0 01-Feb-00
+---------------------
+
+1. A "configure" script is now used to configure PCRE for Unix systems. It
+builds a Makefile, a config.h file, and the pcre-config script.
+
+2. PCRE is built as a shared library by default.
+
+3. There is support for POSIX classes such as [:alpha:].
+
+5. There is an experimental recursion feature.
+
+----------------------------------------------------------------------------
+          IMPORTANT FOR THOSE UPGRADING FROM VERSIONS BEFORE 2.00
+
+Please note that there has been a change in the API such that a larger
+ovector is required at matching time, to provide some additional workspace.
+The new man page has details. This change was necessary in order to support
+some of the new functionality in Perl 5.005.
+
+          IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.00
+
+Another (I hope this is the last!) change has been made to the API for the
+pcre_compile() function. An additional argument has been added to make it
+possible to pass over a pointer to character tables built in the current
+locale by pcre_maketables(). To use the default tables, this new arguement
+should be passed as NULL.
+
+          IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.05
+
+Yet another (and again I hope this really is the last) change has been made
+to the API for the pcre_exec() function. An additional argument has been
+added to make it possible to start the match other than at the start of the
+subject string. This is important if there are lookbehinds. The new man
+page has the details, but you just want to convert existing programs, all
+you need to do is to stick in a new fifth argument to pcre_exec(), with a
+value of zero. For example, change
+
+  pcre_exec(pattern, extra, subject, length, options, ovec, ovecsize)
+to
+  pcre_exec(pattern, extra, subject, length, 0, options, ovec, ovecsize)
+
+****
diff --git a/8.31/NON-AUTOTOOLS-BUILD b/8.31/NON-AUTOTOOLS-BUILD
new file mode 100644
index 0000000..5e36ab7
--- /dev/null
+++ b/8.31/NON-AUTOTOOLS-BUILD
@@ -0,0 +1,585 @@
+Building PCRE without using autotools
+-------------------------------------
+
+This document contains the following sections:
+
+  General
+  Generic instructions for the PCRE C library
+  The C++ wrapper functions
+  Building for virtual Pascal
+  Stack size in Windows environments
+  Linking programs in Windows environments
+  Comments about Win32 builds
+  Building PCRE on Windows with CMake
+  Use of relative paths with CMake on Windows
+  Testing with RunTest.bat
+  Building under Windows with BCC5.5
+  Building PCRE on OpenVMS
+  Building PCRE on Stratus OpenVOS
+
+
+GENERAL
+
+I (Philip Hazel) have no experience of Windows or VMS sytems and how their
+libraries work. The items in the PCRE distribution and Makefile that relate to
+anything other than Linux systems are untested by me.
+
+There are some other comments and files (including some documentation in CHM
+format) in the Contrib directory on the FTP site:
+
+  ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/Contrib
+
+The basic PCRE library consists entirely of code written in Standard C, and so
+should compile successfully on any system that has a Standard C compiler and
+library. The C++ wrapper functions are a separate issue (see below).
+
+The PCRE distribution includes a "configure" file for use by the configure/make
+(autotools) build system, as found in many Unix-like environments. The README
+file contains information about the options for "configure".
+
+There is also support for CMake, which some users prefer, especially in Windows
+environments, though it can also be run in Unix-like environments. See the
+section entitled "Building PCRE on Windows with CMake" below.
+
+Versions of config.h and pcre.h are distributed in the PCRE tarballs under the
+names config.h.generic and pcre.h.generic. These are provided for those who
+build PCRE without using "configure" or CMake. If you use "configure" or CMake,
+the .generic versions are not used.
+
+
+GENERIC INSTRUCTIONS FOR THE PCRE C LIBRARY
+
+The following are generic instructions for building the PCRE C library "by
+hand":
+
+ (1) Copy or rename the file config.h.generic as config.h, and edit the macro
+     settings that it contains to whatever is appropriate for your environment.
+     In particular, if you want to force a specific value for newline, you can
+     define the NEWLINE macro. When you compile any of the PCRE modules, you
+     must specify -DHAVE_CONFIG_H to your compiler so that config.h is included
+     in the sources.
+
+     An alternative approach is not to edit config.h, but to use -D on the
+     compiler command line to make any changes that you need to the
+     configuration options. In this case -DHAVE_CONFIG_H must not be set.
+
+     NOTE: There have been occasions when the way in which certain parameters
+     in config.h are used has changed between releases. (In the configure/make
+     world, this is handled automatically.) When upgrading to a new release,
+     you are strongly advised to review config.h.generic before re-using what
+     you had previously.
+
+ (2) Copy or rename the file pcre.h.generic as pcre.h.
+
+ (3) EITHER:
+       Copy or rename file pcre_chartables.c.dist as pcre_chartables.c.
+
+     OR:
+       Compile dftables.c as a stand-alone program (using -DHAVE_CONFIG_H if
+       you have set up config.h), and then run it with the single argument
+       "pcre_chartables.c". This generates a set of standard character tables
+       and writes them to that file. The tables are generated using the default
+       C locale for your system. If you want to use a locale that is specified
+       by LC_xxx environment variables, add the -L option to the dftables
+       command. You must use this method if you are building on a system that
+       uses EBCDIC code.
+
+     The tables in pcre_chartables.c are defaults. The caller of PCRE can
+     specify alternative tables at run time.
+
+ (4) Ensure that you have the following header files:
+
+       pcre_internal.h
+       ucp.h
+
+ (5) For an 8-bit library, compile the following source files, setting
+     -DHAVE_CONFIG_H as a compiler option if you have set up config.h with your
+     configuration, or else use other -D settings to change the configuration
+     as required.
+
+       pcre_byte_order.c
+       pcre_chartables.c
+       pcre_compile.c
+       pcre_config.c
+       pcre_dfa_exec.c
+       pcre_exec.c
+       pcre_fullinfo.c
+       pcre_get.c
+       pcre_globals.c
+       pcre_maketables.c
+       pcre_newline.c
+       pcre_ord2utf8.c
+       pcre_refcount.c
+       pcre_string_utils.c
+       pcre_study.c
+       pcre_tables.c
+       pcre_ucd.c
+       pcre_valid_utf8.c
+       pcre_version.c
+       pcre_xclass.c
+
+     Make sure that you include -I. in the compiler command (or equivalent for
+     an unusual compiler) so that all included PCRE header files are first
+     sought in the current directory. Otherwise you run the risk of picking up
+     a previously-installed file from somewhere else.
+
+ (6) If you have defined SUPPORT_JIT in config.h, you must also compile
+
+       pcre_jit_compile.c
+
+     This file #includes sources from the sljit subdirectory, where there
+     should be 16 files, all of whose names begin with "sljit".
+
+ (7) Now link all the compiled code into an object library in whichever form
+     your system keeps such libraries. This is the basic PCRE C 8-bit library.
+     If your system has static and shared libraries, you may have to do this
+     once for each type.
+
+ (8) If you want to build a 16-bit library (as well as, or instead of the 8-bit
+     library) repeat steps 5-7 with the following files:
+
+       pcre16_byte_order.c
+       pcre16_chartables.c
+       pcre16_compile.c
+       pcre16_config.c
+       pcre16_dfa_exec.c
+       pcre16_exec.c
+       pcre16_fullinfo.c
+       pcre16_get.c
+       pcre16_globals.c
+       pcre16_jit_compile.c (if SUPPORT_JIT is defined)
+       pcre16_maketables.c
+       pcre16_newline.c
+       pcre16_ord2utf16.c
+       pcre16_refcount.c
+       pcre16_string_utils.c
+       pcre16_study.c
+       pcre16_tables.c
+       pcre16_ucd.c
+       pcre16_utf16_utils.c
+       pcre16_valid_utf16.c
+       pcre16_version.c
+       pcre16_xclass.c
+
+ (9) If you want to build the POSIX wrapper functions (which apply only to the
+     8-bit library), ensure that you have the pcreposix.h file and then compile
+     pcreposix.c (remembering -DHAVE_CONFIG_H if necessary). Link the result
+     (on its own) as the pcreposix library.
+
+(10) The pcretest program can be linked with either or both of the 8-bit and
+     16-bit libraries (depending on what you selected in config.h). Compile
+     pcretest.c and pcre_printint.c (again, don't forget -DHAVE_CONFIG_H) and
+     link them together with the appropriate library/ies. If you compiled an
+     8-bit library, pcretest also needs the pcreposix wrapper library unless
+     you compiled it with -DNOPOSIX.
+
+(11) Run pcretest on the testinput files in the testdata directory, and check
+     that the output matches the corresponding testoutput files. There are
+     comments about what each test does in the section entitled "Testing PCRE"
+     in the README file. If you compiled both an 8-bit and a 16-bit library,
+     you need to run pcretest with the -16 option to do 16-bit tests.
+
+     Some tests are relevant only when certain build-time options are selected.
+     For example, test 4 is for UTF-8 or UTF-16 support, and will not run if
+     you have built PCRE without it. See the comments at the start of each
+     testinput file. If you have a suitable Unix-like shell, the RunTest script
+     will run the appropriate tests for you.
+
+     Note that the supplied files are in Unix format, with just LF characters
+     as line terminators. You may need to edit them to change this if your
+     system uses a different convention. If you are using Windows, you probably
+     should use the wintestinput3 file instead of testinput3 (and the
+     corresponding output file). This is a locale test; wintestinput3 sets the
+     locale to "french" rather than "fr_FR", and there some minor output
+     differences.
+
+(12) If you have built PCRE with SUPPORT_JIT, the JIT features will be tested
+     by the testdata files. However, you might also like to build and run
+     the JIT test program, pcre_jit_test.c.
+
+(13) If you want to use the pcregrep command, compile and link pcregrep.c; it
+     uses only the basic 8-bit PCRE library (it does not need the pcreposix
+     library).
+
+
+THE C++ WRAPPER FUNCTIONS
+
+The PCRE distribution also contains some C++ wrapper functions and tests,
+applicable to the 8-bit library, which were contributed by Google Inc. On a
+system that can use "configure" and "make", the functions are automatically
+built into a library called pcrecpp. It should be straightforward to compile
+the .cc files manually on other systems. The files called xxx_unittest.cc are
+test programs for each of the corresponding xxx.cc files.
+
+
+BUILDING FOR VIRTUAL PASCAL
+
+A script for building PCRE using Borland's C++ compiler for use with VPASCAL
+was contributed by Alexander Tokarev. Stefan Weber updated the script and added
+additional files. The following files in the distribution are for building PCRE
+for use with VP/Borland: makevp_c.txt, makevp_l.txt, makevp.bat, pcregexp.pas.
+
+
+STACK SIZE IN WINDOWS ENVIRONMENTS
+
+The default processor stack size of 1Mb in some Windows environments is too
+small for matching patterns that need much recursion. In particular, test 2 may
+fail because of this. Normally, running out of stack causes a crash, but there
+have been cases where the test program has just died silently. See your linker
+documentation for how to increase stack size if you experience problems. The
+Linux default of 8Mb is a reasonable choice for the stack, though even that can
+be too small for some pattern/subject combinations.
+
+PCRE has a compile configuration option to disable the use of stack for
+recursion so that heap is used instead. However, pattern matching is
+significantly slower when this is done. There is more about stack usage in the
+"pcrestack" documentation.
+
+
+LINKING PROGRAMS IN WINDOWS ENVIRONMENTS
+
+If you want to statically link a program against a PCRE library in the form of
+a non-dll .a file, you must define PCRE_STATIC before including pcre.h or
+pcrecpp.h, otherwise the pcre_malloc() and pcre_free() exported functions will
+be declared __declspec(dllimport), with unwanted results.
+
+
+CALLING CONVENTIONS IN WINDOWS ENVIRONMENTS
+
+It is possible to compile programs to use different calling conventions using
+MSVC. Search the web for "calling conventions" for more information. To make it
+easier to change the calling convention for the exported functions in the
+PCRE library, the macro PCRE_CALL_CONVENTION is present in all the external
+definitions. It can be set externally when compiling (e.g. in CFLAGS). If it is
+not set, it defaults to empty; the default calling convention is then used
+(which is what is wanted most of the time).
+
+
+COMMENTS ABOUT WIN32 BUILDS (see also "BUILDING PCRE ON WINDOWS WITH CMAKE")
+
+There are two ways of building PCRE using the "configure, make, make install"
+paradigm on Windows systems: using MinGW or using Cygwin. These are not at all
+the same thing; they are completely different from each other. There is also
+support for building using CMake, which some users find a more straightforward
+way of building PCRE under Windows.
+
+The MinGW home page (http://www.mingw.org/) says this:
+
+  MinGW: A collection of freely available and freely distributable Windows
+  specific header files and import libraries combined with GNU toolsets that
+  allow one to produce native Windows programs that do not rely on any
+  3rd-party C runtime DLLs.
+
+The Cygwin home page (http://www.cygwin.com/) says this:
+
+  Cygwin is a Linux-like environment for Windows. It consists of two parts:
+
+  . A DLL (cygwin1.dll) which acts as a Linux API emulation layer providing
+    substantial Linux API functionality
+
+  . A collection of tools which provide Linux look and feel.
+
+  The Cygwin DLL currently works with all recent, commercially released x86 32
+  bit and 64 bit versions of Windows, with the exception of Windows CE.
+
+On both MinGW and Cygwin, PCRE should build correctly using:
+
+  ./configure && make && make install
+
+This should create two libraries called libpcre and libpcreposix, and, if you
+have enabled building the C++ wrapper, a third one called libpcrecpp. These are
+independent libraries: when you link with libpcreposix or libpcrecpp you must
+also link with libpcre, which contains the basic functions. (Some earlier
+releases of PCRE included the basic libpcre functions in libpcreposix. This no
+longer happens.)
+
+A user submitted a special-purpose patch that makes it easy to create
+"pcre.dll" under mingw32 using the "msys" environment. It provides "pcre.dll"
+as a special target. If you use this target, no other files are built, and in
+particular, the pcretest and pcregrep programs are not built. An example of how
+this might be used is:
+
+  ./configure --enable-utf --disable-cpp CFLAGS="-03 -s"; make pcre.dll
+
+Using Cygwin's compiler generates libraries and executables that depend on
+cygwin1.dll. If a library that is generated this way is distributed,
+cygwin1.dll has to be distributed as well. Since cygwin1.dll is under the GPL
+licence, this forces not only PCRE to be under the GPL, but also the entire
+application. A distributor who wants to keep their own code proprietary must
+purchase an appropriate Cygwin licence.
+
+MinGW has no such restrictions. The MinGW compiler generates a library or
+executable that can run standalone on Windows without any third party dll or
+licensing issues.
+
+But there is more complication:
+
+If a Cygwin user uses the -mno-cygwin Cygwin gcc flag, what that really does is
+to tell Cygwin's gcc to use the MinGW gcc. Cygwin's gcc is only acting as a
+front end to MinGW's gcc (if you install Cygwin's gcc, you get both Cygwin's
+gcc and MinGW's gcc). So, a user can:
+
+. Build native binaries by using MinGW or by getting Cygwin and using
+  -mno-cygwin.
+
+. Build binaries that depend on cygwin1.dll by using Cygwin with the normal
+  compiler flags.
+
+The test files that are supplied with PCRE are in UNIX format, with LF
+characters as line terminators. Unless your PCRE library uses a default newline
+option that includes LF as a valid newline, it may be necessary to change the
+line terminators in the test files to get some of the tests to work.
+
+
+BUILDING PCRE ON WINDOWS WITH CMAKE
+
+CMake is an alternative configuration facility that can be used instead of
+"configure". CMake creates project files (make files, solution files, etc.)
+tailored to numerous development environments, including Visual Studio,
+Borland, Msys, MinGW, NMake, and Unix.  If possible, use short paths with no
+spaces in the names for your CMake installation and your PCRE source and build
+directories.
+
+The following instructions were contributed by a PCRE user.
+
+1.  Install the latest CMake version available from http://www.cmake.org/, and
+    ensure that cmake\bin is on your path.
+
+2.  Unzip (retaining folder structure) the PCRE source tree into a source
+    directory such as C:\pcre. You should ensure your local date and time
+    is not earlier than the file dates in your source dir if the release is
+    very new.
+
+3.  Create a new, empty build directory, preferably a subdirectory of the
+    source dir. For example, C:\pcre\pcre-xx\build.
+
+4.  Run cmake-gui from the Shell envirornment of your build tool, for example,
+    Msys for Msys/MinGW or Visual Studio Command Prompt for VC/VC++.
+
+5.  Enter C:\pcre\pcre-xx and C:\pcre\pcre-xx\build for the source and build
+    directories, respectively.
+
+6.  Hit the "Configure" button.
+
+7.  Select the particular IDE / build tool that you are using (Visual
+    Studio, MSYS makefiles, MinGW makefiles, etc.)
+
+8.  The GUI will then list several configuration options. This is where
+    you can enable UTF-8 support or other PCRE optional features.
+
+9.  Hit "Configure" again. The adjacent "Generate" button should now be
+    active.
+
+10. Hit "Generate".
+
+11. The build directory should now contain a usable build system, be it a
+    solution file for Visual Studio, makefiles for MinGW, etc. Exit from
+    cmake-gui and use the generated build system with your compiler or IDE.
+    E.g., for MinGW you can run "make", or for Visual Studio, open the PCRE
+    solution, select the desired configuration (Debug, or Release, etc.) and
+    build the ALL_BUILD project.
+
+12. If during configuration with cmake-gui you've elected to build the test
+    programs, you can execute them by building the test project. E.g., for
+    MinGW: "make test"; for Visual Studio build the RUN_TESTS project. The
+    most recent build configuration is targeted by the tests. A summary of
+    test results is presented. Complete test output is subsequently
+    available for review in Testing\Temporary under your build dir.
+
+
+USE OF RELATIVE PATHS WITH CMAKE ON WINDOWS
+
+A PCRE user comments as follows:
+
+I thought that others may want to know the current state of
+CMAKE_USE_RELATIVE_PATHS support on Windows.
+
+Here it is:
+-- AdditionalIncludeDirectories is only partially modified (only the
+first path - see below)
+-- Only some of the contained file paths are modified - shown below for
+pcre.vcproj
+-- It properly modifies
+
+I am sure CMake people can fix that if they want to. Until then one will
+need to replace existing absolute paths in project files with relative
+paths manually (e.g. from VS) - relative to project file location. I did
+just that before being told to try CMAKE_USE_RELATIVE_PATHS. Not a big
+deal.
+
+AdditionalIncludeDirectories="E:\builds\pcre\build;E:\builds\pcre\pcre-7.5;"
+AdditionalIncludeDirectories=".;E:\builds\pcre\pcre-7.5;"
+
+RelativePath="pcre.h">
+RelativePath="pcre_chartables.c">
+RelativePath="pcre_chartables.c.rule">
+
+
+TESTING WITH RUNTEST.BAT
+
+If configured with CMake, building the test project ("make test" or building
+ALL_TESTS in Visual Studio) creates (and runs) pcre_test.bat (and depending
+on your configuration options, possibly other test programs) in the build
+directory. Pcre_test.bat runs RunTest.Bat with correct source and exe paths.
+
+For manual testing with RunTest.bat, provided the build dir is a subdirectory
+of the source directory: Open command shell window. Chdir to the location
+of your pcretest.exe and pcregrep.exe programs. Call RunTest.bat with
+"..\RunTest.Bat" or "..\..\RunTest.bat" as appropriate.
+
+To run only a particular test with RunTest.Bat provide a test number argument.
+
+Otherwise:
+
+1. Copy RunTest.bat into the directory where pcretest.exe and pcregrep.exe
+   have been created.
+
+2. Edit RunTest.bat to indentify the full or relative location of
+   the pcre source (wherein which the testdata folder resides), e.g.:
+
+   set srcdir=C:\pcre\pcre-8.20
+
+3. In a Windows command environment, chdir to the location of your bat and
+   exe programs.
+
+4. Run RunTest.bat. Test outputs will automatically be compared to expected
+   results, and discrepancies will be identified in the console output.
+
+To independently test the just-in-time compiler, run pcre_jit_test.exe.
+To test pcrecpp, run pcrecpp_unittest.exe, pcre_stringpiece_unittest.exe and
+pcre_scanner_unittest.exe.
+
+
+BUILDING UNDER WINDOWS WITH BCC5.5
+
+Michael Roy sent these comments about building PCRE under Windows with BCC5.5:
+
+  Some of the core BCC libraries have a version of PCRE from 1998 built in,
+  which can lead to pcre_exec() giving an erroneous PCRE_ERROR_NULL from a
+  version mismatch. I'm including an easy workaround below, if you'd like to
+  include it in the non-unix instructions:
+
+  When linking a project with BCC5.5, pcre.lib must be included before any of
+  the libraries cw32.lib, cw32i.lib, cw32mt.lib, and cw32mti.lib on the command
+  line.
+
+
+BUILDING UNDER WINDOWS CE WITH VISUAL STUDIO 200x
+
+Vincent Richomme sent a zip archive of files to help with this process. They
+can be found in the file "pcre-vsbuild.zip" in the Contrib directory of the FTP
+site.
+
+
+BUILDING PCRE ON OPENVMS
+
+Dan Mooney sent the following comments about building PCRE on OpenVMS. They
+relate to an older version of PCRE that used fewer source files, so the exact
+commands will need changing. See the current list of source files above.
+
+"It was quite easy to compile and link the library. I don't have a formal
+make file but the attached file [reproduced below] contains the OpenVMS DCL
+commands I used to build the library. I had to add #define
+POSIX_MALLOC_THRESHOLD 10 to pcre.h since it was not defined anywhere.
+
+The library was built on:
+O/S: HP OpenVMS v7.3-1
+Compiler: Compaq C v6.5-001-48BCD
+Linker: vA13-01
+
+The test results did not match 100% due to the issues you mention in your
+documentation regarding isprint(), iscntrl(), isgraph() and ispunct(). I
+modified some of the character tables temporarily and was able to get the
+results to match. Tests using the fr locale did not match since I don't have
+that locale loaded. The study size was always reported to be 3 less than the
+value in the standard test output files."
+
+=========================
+$! This DCL procedure builds PCRE on OpenVMS
+$!
+$! I followed the instructions in the non-unix-use file in the distribution.
+$!
+$ COMPILE == "CC/LIST/NOMEMBER_ALIGNMENT/PREFIX_LIBRARY_ENTRIES=ALL_ENTRIES
+$ COMPILE DFTABLES.C
+$ LINK/EXE=DFTABLES.EXE DFTABLES.OBJ
+$ RUN DFTABLES.EXE/OUTPUT=CHARTABLES.C
+$ COMPILE MAKETABLES.C
+$ COMPILE GET.C
+$ COMPILE STUDY.C
+$! I had to set POSIX_MALLOC_THRESHOLD to 10 in PCRE.H since the symbol
+$! did not seem to be defined anywhere.
+$! I edited pcre.h and added #DEFINE SUPPORT_UTF8 to enable UTF8 support.
+$ COMPILE PCRE.C
+$ LIB/CREATE PCRE MAKETABLES.OBJ, GET.OBJ, STUDY.OBJ, PCRE.OBJ
+$! I had to set POSIX_MALLOC_THRESHOLD to 10 in PCRE.H since the symbol
+$! did not seem to be defined anywhere.
+$ COMPILE PCREPOSIX.C
+$ LIB/CREATE PCREPOSIX PCREPOSIX.OBJ
+$ COMPILE PCRETEST.C
+$ LINK/EXE=PCRETEST.EXE PCRETEST.OBJ, PCRE/LIB, PCREPOSIX/LIB
+$! C programs that want access to command line arguments must be
+$! defined as a symbol
+$ PCRETEST :== "$ SYS$ROADSUSERS:[DMOONEY.REGEXP]PCRETEST.EXE"
+$! Arguments must be enclosed in quotes.
+$ PCRETEST "-C"
+$! Test results:
+$!
+$!   The test results did not match 100%. The functions isprint(), iscntrl(),
+$!   isgraph() and ispunct() on OpenVMS must not produce the same results
+$!   as the system that built the test output files provided with the
+$!   distribution.
+$!
+$!   The study size did not match and was always 3 less on OpenVMS.
+$!
+$!   Locale could not be set to fr
+$!
+=========================
+
+
+BUILDING PCRE ON STRATUS OPENVOS
+
+These notes on the port of PCRE to VOS (lightly edited) were supplied by
+Ashutosh Warikoo, whose email address has the local part awarikoo and the
+domain nse.co.in. The port was for version 7.9 in August 2009.
+
+1.   Building PCRE
+
+I built pcre on OpenVOS Release 17.0.1at using GNU Tools 3.4a without any
+problems. I used the following packages to build PCRE:
+
+  ftp://ftp.stratus.com/pub/vos/posix/ga/posix.save.evf.gz
+
+Please read and follow the instructions that come with these packages. To start
+the build of pcre, from the root of the package type:
+
+  ./build.sh
+
+2. Installing PCRE
+
+Once you have successfully built PCRE, login to the SysAdmin group, switch to
+the root user, and type
+
+  [ !create_dir (master_disk)>usr   --if needed ]
+  [ !create_dir (master_disk)>usr>local   --if needed ]
+    !gmake install
+
+This installs PCRE and its man pages into /usr/local. You can add
+(master_disk)>usr>local>bin to your command search paths, or if you are in
+BASH, add /usr/local/bin to the PATH environment variable.
+
+4. Restrictions
+
+This port requires readline library optionally. However during the build I
+faced some yet unexplored errors while linking with readline. As it was an
+optional component I chose to disable it.
+
+5. Known Problems
+
+I ran the test suite, but you will have to be your own judge of whether this
+command, and this port, suits your purposes. If you find any problems that
+appear to be related to the port itself, please let me know. Please see the
+build.log file in the root of the package also.
+
+
+==========================
+Last Updated: 18 June 2012
diff --git a/8.31/NON-UNIX-USE b/8.31/NON-UNIX-USE
new file mode 100644
index 0000000..a25546b
--- /dev/null
+++ b/8.31/NON-UNIX-USE
@@ -0,0 +1,7 @@
+Compiling PCRE on non-Unix systems
+----------------------------------
+
+This has been renamed to better reflect its contents. Please see the file
+NON-AUTOTOOLS-BUILD for details of how to build PCRE without using autotools.
+
+####
diff --git a/8.31/PCRE.sln b/8.31/PCRE.sln
new file mode 100644
index 0000000..52579a0
--- /dev/null
+++ b/8.31/PCRE.sln
@@ -0,0 +1,178 @@
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ALL_BUILD", "ALL_BUILD.vcxproj", "{8CC49393-6435-4E0B-B16A-F2468A84615A}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF} = {1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3} = {75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A} = {E85785D3-DB75-4CD2-B011-407CDAFF575A}
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4} = {F493E57F-8A93-43EA-A330-189FCC94B7B4}
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F} = {6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0} = {8A6A718F-C4DC-4E6A-8523-4285E818E8C0}
+		{D7C4D924-0E49-4A0F-809B-49296796D733} = {D7C4D924-0E49-4A0F-809B-49296796D733}
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F} = {C444BDDD-B139-4755-9453-C881AEFB2F1F}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "INSTALL", "INSTALL.vcxproj", "{6D9B5DC0-7A1A-463D-8B38-057334E25F96}"
+	ProjectSection(ProjectDependencies) = postProject
+		{8CC49393-6435-4E0B-B16A-F2468A84615A} = {8CC49393-6435-4E0B-B16A-F2468A84615A}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "RUN_TESTS", "RUN_TESTS.vcxproj", "{944D5FB6-FF1C-46DF-8C00-1203AC643E7D}"
+	ProjectSection(ProjectDependencies) = postProject
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ZERO_CHECK", "ZERO_CHECK.vcxproj", "{72B652AF-553E-430A-BAD3-22FEC8990E39}"
+	ProjectSection(ProjectDependencies) = postProject
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pcre", "pcre.vcxproj", "{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pcre_scanner_unittest", "pcre_scanner_unittest.vcxproj", "{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4} = {F493E57F-8A93-43EA-A330-189FCC94B7B4}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pcre_stringpiece_unittest", "pcre_stringpiece_unittest.vcxproj", "{E85785D3-DB75-4CD2-B011-407CDAFF575A}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4} = {F493E57F-8A93-43EA-A330-189FCC94B7B4}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pcrecpp", "pcrecpp.vcxproj", "{F493E57F-8A93-43EA-A330-189FCC94B7B4}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF} = {1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pcrecpp_unittest", "pcrecpp_unittest.vcxproj", "{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4} = {F493E57F-8A93-43EA-A330-189FCC94B7B4}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pcregrep", "pcregrep.vcxproj", "{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+		{D7C4D924-0E49-4A0F-809B-49296796D733} = {D7C4D924-0E49-4A0F-809B-49296796D733}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pcreposix", "pcreposix.vcxproj", "{D7C4D924-0E49-4A0F-809B-49296796D733}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF} = {1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pcretest", "pcretest.vcxproj", "{C444BDDD-B139-4755-9453-C881AEFB2F1F}"
+	ProjectSection(ProjectDependencies) = postProject
+		{72B652AF-553E-430A-BAD3-22FEC8990E39} = {72B652AF-553E-430A-BAD3-22FEC8990E39}
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF} = {1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}
+		{D7C4D924-0E49-4A0F-809B-49296796D733} = {D7C4D924-0E49-4A0F-809B-49296796D733}
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Release|Win32 = Release|Win32
+		MinSizeRel|Win32 = MinSizeRel|Win32
+		RelWithDebInfo|Win32 = RelWithDebInfo|Win32
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8CC49393-6435-4E0B-B16A-F2468A84615A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8CC49393-6435-4E0B-B16A-F2468A84615A}.Debug|Win32.Build.0 = Debug|Win32
+		{8CC49393-6435-4E0B-B16A-F2468A84615A}.Release|Win32.ActiveCfg = Release|Win32
+		{8CC49393-6435-4E0B-B16A-F2468A84615A}.Release|Win32.Build.0 = Release|Win32
+		{8CC49393-6435-4E0B-B16A-F2468A84615A}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{8CC49393-6435-4E0B-B16A-F2468A84615A}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{8CC49393-6435-4E0B-B16A-F2468A84615A}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{8CC49393-6435-4E0B-B16A-F2468A84615A}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{6D9B5DC0-7A1A-463D-8B38-057334E25F96}.Debug|Win32.ActiveCfg = Debug|Win32
+		{6D9B5DC0-7A1A-463D-8B38-057334E25F96}.Release|Win32.ActiveCfg = Release|Win32
+		{6D9B5DC0-7A1A-463D-8B38-057334E25F96}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{6D9B5DC0-7A1A-463D-8B38-057334E25F96}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{944D5FB6-FF1C-46DF-8C00-1203AC643E7D}.Debug|Win32.ActiveCfg = Debug|Win32
+		{944D5FB6-FF1C-46DF-8C00-1203AC643E7D}.Release|Win32.ActiveCfg = Release|Win32
+		{944D5FB6-FF1C-46DF-8C00-1203AC643E7D}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{944D5FB6-FF1C-46DF-8C00-1203AC643E7D}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{72B652AF-553E-430A-BAD3-22FEC8990E39}.Debug|Win32.ActiveCfg = Debug|Win32
+		{72B652AF-553E-430A-BAD3-22FEC8990E39}.Debug|Win32.Build.0 = Debug|Win32
+		{72B652AF-553E-430A-BAD3-22FEC8990E39}.Release|Win32.ActiveCfg = Release|Win32
+		{72B652AF-553E-430A-BAD3-22FEC8990E39}.Release|Win32.Build.0 = Release|Win32
+		{72B652AF-553E-430A-BAD3-22FEC8990E39}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{72B652AF-553E-430A-BAD3-22FEC8990E39}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{72B652AF-553E-430A-BAD3-22FEC8990E39}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{72B652AF-553E-430A-BAD3-22FEC8990E39}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}.Debug|Win32.ActiveCfg = Debug|Win32
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}.Debug|Win32.Build.0 = Debug|Win32
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}.Release|Win32.ActiveCfg = Release|Win32
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}.Release|Win32.Build.0 = Release|Win32
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{1CD03696-931D-4BB3-B2AD-F1B06C3B4CFF}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}.Debug|Win32.ActiveCfg = Debug|Win32
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}.Debug|Win32.Build.0 = Debug|Win32
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}.Release|Win32.ActiveCfg = Release|Win32
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}.Release|Win32.Build.0 = Release|Win32
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{75C00ECF-AA58-46F5-B835-AB9AAEBA11E3}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A}.Debug|Win32.Build.0 = Debug|Win32
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A}.Release|Win32.ActiveCfg = Release|Win32
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A}.Release|Win32.Build.0 = Release|Win32
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{E85785D3-DB75-4CD2-B011-407CDAFF575A}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4}.Debug|Win32.ActiveCfg = Debug|Win32
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4}.Debug|Win32.Build.0 = Debug|Win32
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4}.Release|Win32.ActiveCfg = Release|Win32
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4}.Release|Win32.Build.0 = Release|Win32
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{F493E57F-8A93-43EA-A330-189FCC94B7B4}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}.Debug|Win32.ActiveCfg = Debug|Win32
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}.Debug|Win32.Build.0 = Debug|Win32
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}.Release|Win32.ActiveCfg = Release|Win32
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}.Release|Win32.Build.0 = Release|Win32
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{6B23B83D-2B59-4BA2-A1AF-1E0BD6B6477F}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}.Debug|Win32.Build.0 = Debug|Win32
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}.Release|Win32.ActiveCfg = Release|Win32
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}.Release|Win32.Build.0 = Release|Win32
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{8A6A718F-C4DC-4E6A-8523-4285E818E8C0}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{D7C4D924-0E49-4A0F-809B-49296796D733}.Debug|Win32.ActiveCfg = Debug|Win32
+		{D7C4D924-0E49-4A0F-809B-49296796D733}.Debug|Win32.Build.0 = Debug|Win32
+		{D7C4D924-0E49-4A0F-809B-49296796D733}.Release|Win32.ActiveCfg = Release|Win32
+		{D7C4D924-0E49-4A0F-809B-49296796D733}.Release|Win32.Build.0 = Release|Win32
+		{D7C4D924-0E49-4A0F-809B-49296796D733}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{D7C4D924-0E49-4A0F-809B-49296796D733}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{D7C4D924-0E49-4A0F-809B-49296796D733}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{D7C4D924-0E49-4A0F-809B-49296796D733}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F}.Debug|Win32.ActiveCfg = Debug|Win32
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F}.Debug|Win32.Build.0 = Debug|Win32
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F}.Release|Win32.ActiveCfg = Release|Win32
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F}.Release|Win32.Build.0 = Release|Win32
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F}.MinSizeRel|Win32.ActiveCfg = MinSizeRel|Win32
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F}.MinSizeRel|Win32.Build.0 = MinSizeRel|Win32
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F}.RelWithDebInfo|Win32.ActiveCfg = RelWithDebInfo|Win32
+		{C444BDDD-B139-4755-9453-C881AEFB2F1F}.RelWithDebInfo|Win32.Build.0 = RelWithDebInfo|Win32
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+	EndGlobalSection
+	GlobalSection(ExtensibilityAddIns) = postSolution
+	EndGlobalSection
+EndGlobal
diff --git a/8.31/PrepareRelease b/8.31/PrepareRelease
new file mode 100644
index 0000000..4a15c9a
--- /dev/null
+++ b/8.31/PrepareRelease
@@ -0,0 +1,277 @@
+#/bin/sh
+
+# Script to prepare the files for building a PCRE release. It does some
+# processing of the documentation, detrails files, and creates pcre.h.generic
+# and config.h.generic (for use by builders who can't run ./configure).
+
+# You must run this script before runnning "make dist". If its first argument
+# is "doc", it stops after preparing the documentation. There are no other
+# arguments. The script makes use of the following files:
+
+# 132html     A Perl script that converts a .1 or .3 man page into HTML. It
+#             "knows" the relevant troff constructs that are used in the PCRE
+#             man pages.
+
+# CheckMan    A Perl script that checks man pages for typos in the mark up.
+
+# CleanTxt    A Perl script that cleans up the output of "nroff -man" by
+#             removing backspaces and other redundant text so as to produce
+#             a readable .txt file.
+
+# Detrail     A Perl script that removes trailing spaces from files.
+
+# doc/index.html.src
+#             A file that is copied as index.html into the doc/html directory
+#             when the HTML documentation is built. It works like this so that
+#             doc/html can be deleted and re-created from scratch.
+
+
+# First, sort out the documentation. Remove pcredemo.3 first because it won't
+# pass the markup check (it is created below, using markup that none of the
+# other pages use).
+
+cd doc
+echo Processing documentation
+
+/bin/rm -f pcredemo.3
+
+# Check the remaining man pages
+
+perl ../CheckMan *.1 *.3
+if [ $? != 0 ] ; then exit 1; fi
+
+# Make Text form of the documentation. It needs some mangling to make it
+# tidy for online reading. Concatenate all the .3 stuff, but omit the
+# individual function pages.
+
+cat <<End >pcre.txt
+-----------------------------------------------------------------------------
+This file contains a concatenation of the PCRE man pages, converted to plain
+text format for ease of searching with a text editor, or for use on systems
+that do not have a man page processor. The small individual files that give
+synopses of each function in the library have not been included. Neither has
+the pcredemo program. There are separate text files for the pcregrep and
+pcretest commands.
+-----------------------------------------------------------------------------
+
+
+End
+
+echo "Making pcre.txt"
+for file in pcre pcre16 pcrebuild pcrematching pcreapi pcrecallout pcrecompat \
+            pcrepattern pcresyntax pcreunicode pcrejit pcrepartial \
+            pcreprecompile pcreperform pcreposix pcrecpp pcresample \
+            pcrelimits pcrestack ; do
+  echo "  Processing $file.3"
+  nroff -c -man $file.3 >$file.rawtxt
+  perl ../CleanTxt <$file.rawtxt >>pcre.txt
+  /bin/rm $file.rawtxt
+  echo "------------------------------------------------------------------------------" >>pcre.txt
+  if [ "$file" != "pcresample" ] ; then
+    echo " " >>pcre.txt
+    echo " " >>pcre.txt
+  fi
+done
+
+# The three commands
+for file in pcretest pcregrep pcre-config ; do
+  echo Making $file.txt
+  nroff -c -man $file.1 >$file.rawtxt
+  perl ../CleanTxt <$file.rawtxt >$file.txt
+  /bin/rm $file.rawtxt
+done
+
+
+# Make pcredemo.3 from the pcredemo.c source file
+
+echo "Making pcredemo.3"
+perl <<"END" >pcredemo.3
+  open(IN, "../pcredemo.c") || die "Failed to open pcredemo.c\n";
+  open(OUT, ">pcredemo.3") || die "Failed to open pcredemo.3\n";
+  print OUT ".\\\" Start example.\n" .
+            ".de EX\n" .
+            ".  nr mE \\\\n(.f\n" .
+            ".  nf\n" .
+            ".  nh\n" .
+            ".  ft CW\n" .
+            "..\n" .
+            ".\n" .
+            ".\n" .
+            ".\\\" End example.\n" .
+            ".de EE\n" .
+            ".  ft \\\\n(mE\n" .
+            ".  fi\n" .
+            ".  hy \\\\n(HY\n" .
+            "..\n" .
+            ".\n" .
+            ".EX\n" ;
+  while (<IN>)
+    {
+    s/\\/\\e/g;
+    print OUT;
+    }
+  print OUT ".EE\n";
+  close(IN);
+  close(OUT);
+END
+if [ $? != 0 ] ; then exit 1; fi
+
+
+# Make HTML form of the documentation.
+
+echo "Making HTML documentation"
+/bin/rm html/*
+cp index.html.src html/index.html
+
+for file in *.1 ; do
+  base=`basename $file .1`
+  echo "  Making $base.html"
+  perl ../132html -toc $base <$file >html/$base.html
+done
+
+# Exclude table of contents for function summaries. It seems that expr
+# forces an anchored regex. Also exclude them for small pages that have
+# only one section.
+
+for file in *.3 ; do
+  base=`basename $file .3`
+  toc=-toc
+  if [ `expr $base : '.*_'` -ne 0 ] ; then toc="" ; fi
+  if [ "$base" = "pcresample" ]  || \
+     [ "$base" = "pcrestack" ]   || \
+     [ "$base" = "pcrecompat" ]  || \
+     [ "$base" = "pcrelimits" ]  || \
+     [ "$base" = "pcreperform" ] || \
+     [ "$base" = "pcreunicode" ] ; then
+    toc=""
+  fi
+  echo "  Making $base.html"
+  perl ../132html $toc $base <$file >html/$base.html
+  if [ $? != 0 ] ; then exit 1; fi
+done
+
+# End of documentation processing; stop if only documentation required.
+
+cd ..
+echo Documentation done
+if [ "$1" = "doc" ] ; then exit; fi
+
+# These files are detrailed; do not detrail the test data because there may be
+# significant trailing spaces. Do not detrail RunTest.bat, because it has CRLF
+# line endings and the detrail script removes all trailing white space. The
+# configure files are also omitted from the detrailing. We don't bother with
+# those pcre16_xx files that just define COMPILE_PCRE16 and then #include the
+# common file, because they aren't going to change.
+
+files="\
+  Makefile.am \
+  Makefile.in \
+  configure.ac \
+  README \
+  LICENCE \
+  COPYING \
+  AUTHORS \
+  NEWS \
+  NON-UNIX-USE \
+  NON-AUTOTOOLS-BUILD \
+  INSTALL \
+  132html \
+  CleanTxt \
+  Detrail \
+  ChangeLog \
+  CMakeLists.txt \
+  RunGrepTest \
+  RunTest \
+  pcre-config.in \
+  libpcre.pc.in \
+  libpcre16.pc.in \
+  libpcreposix.pc.in \
+  libpcrecpp.pc.in \
+  config.h.in \
+  pcre_chartables.c.dist \
+  pcredemo.c \
+  pcregrep.c \
+  pcretest.c \
+  dftables.c \
+  pcreposix.c \
+  pcreposix.h \
+  pcre.h.in \
+  pcre_internal.h
+  pcre_byte_order.c \
+  pcre_compile.c \
+  pcre_config.c \
+  pcre_dfa_exec.c \
+  pcre_exec.c \
+  pcre_fullinfo.c \
+  pcre_get.c \
+  pcre_globals.c \
+  pcre_jit_compile.c \
+  pcre_jit_test.c \
+  pcre_maketables.c \
+  pcre_newline.c \
+  pcre_ord2utf8.c \
+  pcre16_ord2utf16.c \
+  pcre_printint.c \
+  pcre_refcount.c \
+  pcre_string_utils.c \
+  pcre_study.c \
+  pcre_tables.c \
+  pcre_ucp_searchfuncs.c \
+  pcre_valid_utf8.c \
+  pcre_version.c \
+  pcre_xclass.c \
+  pcre16_utf16_utils.c \
+  pcre16_valid_utf16.c \
+  pcre_scanner.cc \
+  pcre_scanner.h \
+  pcre_scanner_unittest.cc \
+  pcrecpp.cc \
+  pcrecpp.h \
+  pcrecpparg.h.in \
+  pcrecpp_unittest.cc \
+  pcre_stringpiece.cc \
+  pcre_stringpiece.h.in \
+  pcre_stringpiece_unittest.cc \
+  perltest.pl \
+  ucp.h \
+  ucpinternal.h \
+  ucptable.h \
+  makevp.bat \
+  pcre.def \
+  libpcre.def \
+  libpcreposix.def"
+
+echo Detrailing
+perl ./Detrail $files doc/p* doc/html/*
+
+echo Doing basic configure to get default pcre.h and config.h
+# This is in case the caller has set aliases (as I do - PH)
+unset cp ls mv rm
+./configure >/dev/null
+
+echo Converting pcre.h and config.h to generic forms
+cp -f pcre.h pcre.h.generic
+
+perl <<'END'
+  open(IN, "<config.h") || die "Can't open config.h: $!\n";
+  open(OUT, ">config.h.generic") || die "Can't open config.h.generic: $!\n";
+  while (<IN>)
+    {
+    if (/^#define\s(?!PACKAGE)(\w+)/)
+      {
+      print OUT "#ifndef $1\n";
+      print OUT;
+      print OUT "#endif\n";
+      }
+    else
+      {
+      print OUT;
+      }
+    }
+  close IN;
+  close OUT;
+END
+
+echo Done
+
+#End
diff --git a/8.31/README b/8.31/README
new file mode 100644
index 0000000..8b67f10
--- /dev/null
+++ b/8.31/README
@@ -0,0 +1,898 @@
+README file for PCRE (Perl-compatible regular expression library)
+-----------------------------------------------------------------
+
+The latest release of PCRE is always available in three alternative formats
+from:
+
+  ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.gz
+  ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.bz2
+  ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.zip
+
+There is a mailing list for discussion about the development of PCRE at
+
+  pcre-dev@exim.org
+
+Please read the NEWS file if you are upgrading from a previous release.
+The contents of this README file are:
+
+  The PCRE APIs
+  Documentation for PCRE
+  Contributions by users of PCRE
+  Building PCRE on non-Unix-like systems
+  Building PCRE without using autotools
+  Building PCRE using autotools
+  Retrieving configuration information
+  Shared libraries
+  Cross-compiling using autotools
+  Using HP's ANSI C++ compiler (aCC)
+  Using PCRE from MySQL
+  Making new tarballs
+  Testing PCRE
+  Character tables
+  File manifest
+
+
+The PCRE APIs
+-------------
+
+PCRE is written in C, and it has its own API. There are two sets of functions,
+one for the 8-bit library, which processes strings of bytes, and one for the
+16-bit library, which processes strings of 16-bit values. The distribution also
+includes a set of C++ wrapper functions (see the pcrecpp man page for details),
+courtesy of Google Inc., which can be used to call the 8-bit PCRE library from
+C++.
+
+In addition, there is a set of C wrapper functions (again, just for the 8-bit
+library) that are based on the POSIX regular expression API (see the pcreposix
+man page). These end up in the library called libpcreposix. Note that this just
+provides a POSIX calling interface to PCRE; the regular expressions themselves
+still follow Perl syntax and semantics. The POSIX API is restricted, and does
+not give full access to all of PCRE's facilities.
+
+The header file for the POSIX-style functions is called pcreposix.h. The
+official POSIX name is regex.h, but I did not want to risk possible problems
+with existing files of that name by distributing it that way. To use PCRE with
+an existing program that uses the POSIX API, pcreposix.h will have to be
+renamed or pointed at by a link.
+
+If you are using the POSIX interface to PCRE and there is already a POSIX regex
+library installed on your system, as well as worrying about the regex.h header
+file (as mentioned above), you must also take care when linking programs to
+ensure that they link with PCRE's libpcreposix library. Otherwise they may pick
+up the POSIX functions of the same name from the other library.
+
+One way of avoiding this confusion is to compile PCRE with the addition of
+-Dregcomp=PCREregcomp (and similarly for the other POSIX functions) to the
+compiler flags (CFLAGS if you are using "configure" -- see below). This has the
+effect of renaming the functions so that the names no longer clash. Of course,
+you have to do the same thing for your applications, or write them using the
+new names.
+
+
+Documentation for PCRE
+----------------------
+
+If you install PCRE in the normal way on a Unix-like system, you will end up
+with a set of man pages whose names all start with "pcre". The one that is just
+called "pcre" lists all the others. In addition to these man pages, the PCRE
+documentation is supplied in two other forms:
+
+  1. There are files called doc/pcre.txt, doc/pcregrep.txt, and
+     doc/pcretest.txt in the source distribution. The first of these is a
+     concatenation of the text forms of all the section 3 man pages except
+     those that summarize individual functions. The other two are the text
+     forms of the section 1 man pages for the pcregrep and pcretest commands.
+     These text forms are provided for ease of scanning with text editors or
+     similar tools. They are installed in <prefix>/share/doc/pcre, where
+     <prefix> is the installation prefix (defaulting to /usr/local).
+
+  2. A set of files containing all the documentation in HTML form, hyperlinked
+     in various ways, and rooted in a file called index.html, is distributed in
+     doc/html and installed in <prefix>/share/doc/pcre/html.
+
+Users of PCRE have contributed files containing the documentation for various
+releases in CHM format. These can be found in the Contrib directory of the FTP
+site (see next section).
+
+
+Contributions by users of PCRE
+------------------------------
+
+You can find contributions from PCRE users in the directory
+
+  ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/Contrib
+
+There is a README file giving brief descriptions of what they are. Some are
+complete in themselves; others are pointers to URLs containing relevant files.
+Some of this material is likely to be well out-of-date. Several of the earlier
+contributions provided support for compiling PCRE on various flavours of
+Windows (I myself do not use Windows). Nowadays there is more Windows support
+in the standard distribution, so these contibutions have been archived.
+
+
+Building PCRE on non-Unix-like systems
+--------------------------------------
+
+For a non-Unix-like system, please read the comments in the file
+NON-AUTOTOOLS-BUILD, though if your system supports the use of "configure" and
+"make" you may be able to build PCRE using autotools in the same way as for
+many Unix-like systems.
+
+PCRE can also be configured using the GUI facility provided by CMake's
+cmake-gui command. This creates Makefiles, solution files, etc. The file
+NON-AUTOTOOLS-BUILD has information about CMake.
+
+PCRE has been compiled on many different operating systems. It should be
+straightforward to build PCRE on any system that has a Standard C compiler and
+library, because it uses only Standard C functions.
+
+
+Building PCRE without using autotools
+-------------------------------------
+
+The use of autotools (in particular, libtool) is problematic in some
+environments, even some that are Unix or Unix-like. See the NON-AUTOTOOLS-BUILD
+file for ways of building PCRE without using autotools.
+
+
+Building PCRE using autotools
+-----------------------------
+
+If you are using HP's ANSI C++ compiler (aCC), please see the special note
+in the section entitled "Using HP's ANSI C++ compiler (aCC)" below.
+
+The following instructions assume the use of the widely used "configure; make;
+make install" (autotools) process.
+
+To build PCRE on system that supports autotools, first run the "configure"
+command from the PCRE distribution directory, with your current directory set
+to the directory where you want the files to be created. This command is a
+standard GNU "autoconf" configuration script, for which generic instructions
+are supplied in the file INSTALL.
+
+Most commonly, people build PCRE within its own distribution directory, and in
+this case, on many systems, just running "./configure" is sufficient. However,
+the usual methods of changing standard defaults are available. For example:
+
+CFLAGS='-O2 -Wall' ./configure --prefix=/opt/local
+
+This command specifies that the C compiler should be run with the flags '-O2
+-Wall' instead of the default, and that "make install" should install PCRE
+under /opt/local instead of the default /usr/local.
+
+If you want to build in a different directory, just run "configure" with that
+directory as current. For example, suppose you have unpacked the PCRE source
+into /source/pcre/pcre-xxx, but you want to build it in /build/pcre/pcre-xxx:
+
+cd /build/pcre/pcre-xxx
+/source/pcre/pcre-xxx/configure
+
+PCRE is written in C and is normally compiled as a C library. However, it is
+possible to build it as a C++ library, though the provided building apparatus
+does not have any features to support this.
+
+There are some optional features that can be included or omitted from the PCRE
+library. They are also documented in the pcrebuild man page.
+
+. By default, both shared and static libraries are built. You can change this
+  by adding one of these options to the "configure" command:
+
+  --disable-shared
+  --disable-static
+
+  (See also "Shared libraries on Unix-like systems" below.)
+
+. By default, only the 8-bit library is built. If you add --enable-pcre16 to
+  the "configure" command, the 16-bit library is also built. If you want only
+  the 16-bit library, use "./configure --enable-pcre16 --disable-pcre8".
+
+. If you are building the 8-bit library and want to suppress the building of
+  the C++ wrapper library, you can add --disable-cpp to the "configure"
+  command. Otherwise, when "configure" is run without --disable-pcre8, it will
+  try to find a C++ compiler and C++ header files, and if it succeeds, it will
+  try to build the C++ wrapper.
+
+. If you want to include support for just-in-time compiling, which can give
+  large performance improvements on certain platforms, add --enable-jit to the
+  "configure" command. This support is available only for certain hardware
+  architectures. If you try to enable it on an unsupported architecture, there
+  will be a compile time error.
+
+. When JIT support is enabled, pcregrep automatically makes use of it, unless
+  you add --disable-pcregrep-jit to the "configure" command.
+
+. If you want to make use of the support for UTF-8 Unicode character strings in
+  the 8-bit library, or UTF-16 Unicode character strings in the 16-bit library,
+  you must add --enable-utf to the "configure" command. Without it, the code
+  for handling UTF-8 and UTF-16 is not included in the relevant library. Even
+  when --enable-utf is included, the use of a UTF encoding still has to be
+  enabled by an option at run time. When PCRE is compiled with this option, its
+  input can only either be ASCII or UTF-8/16, even when running on EBCDIC
+  platforms. It is not possible to use both --enable-utf and --enable-ebcdic at
+  the same time.
+
+. There are no separate options for enabling UTF-8 and UTF-16 independently
+  because that would allow ridiculous settings such as requesting UTF-16
+  support while building only the 8-bit library. However, the option
+  --enable-utf8 is retained for backwards compatibility with earlier releases
+  that did not support 16-bit character strings. It is synonymous with
+  --enable-utf. It is not possible to configure one library with UTF support
+  and the other without in the same configuration.
+
+. If, in addition to support for UTF-8/16 character strings, you want to
+  include support for the \P, \p, and \X sequences that recognize Unicode
+  character properties, you must add --enable-unicode-properties to the
+  "configure" command. This adds about 30K to the size of the library (in the
+  form of a property table); only the basic two-letter properties such as Lu
+  are supported.
+
+. You can build PCRE to recognize either CR or LF or the sequence CRLF or any
+  of the preceding, or any of the Unicode newline sequences as indicating the
+  end of a line. Whatever you specify at build time is the default; the caller
+  of PCRE can change the selection at run time. The default newline indicator
+  is a single LF character (the Unix standard). You can specify the default
+  newline indicator by adding --enable-newline-is-cr or --enable-newline-is-lf
+  or --enable-newline-is-crlf or --enable-newline-is-anycrlf or
+  --enable-newline-is-any to the "configure" command, respectively.
+
+  If you specify --enable-newline-is-cr or --enable-newline-is-crlf, some of
+  the standard tests will fail, because the lines in the test files end with
+  LF. Even if the files are edited to change the line endings, there are likely
+  to be some failures. With --enable-newline-is-anycrlf or
+  --enable-newline-is-any, many tests should succeed, but there may be some
+  failures.
+
+. By default, the sequence \R in a pattern matches any Unicode line ending
+  sequence. This is independent of the option specifying what PCRE considers to
+  be the end of a line (see above). However, the caller of PCRE can restrict \R
+  to match only CR, LF, or CRLF. You can make this the default by adding
+  --enable-bsr-anycrlf to the "configure" command (bsr = "backslash R").
+
+. When called via the POSIX interface, PCRE uses malloc() to get additional
+  storage for processing capturing parentheses if there are more than 10 of
+  them in a pattern. You can increase this threshold by setting, for example,
+
+  --with-posix-malloc-threshold=20
+
+  on the "configure" command.
+
+. PCRE has a counter that can be set to limit the amount of resources it uses.
+  If the limit is exceeded during a match, the match fails. The default is ten
+  million. You can change the default by setting, for example,
+
+  --with-match-limit=500000
+
+  on the "configure" command. This is just the default; individual calls to
+  pcre_exec() can supply their own value. There is more discussion on the
+  pcreapi man page.
+
+. There is a separate counter that limits the depth of recursive function calls
+  during a matching process. This also has a default of ten million, which is
+  essentially "unlimited". You can change the default by setting, for example,
+
+  --with-match-limit-recursion=500000
+
+  Recursive function calls use up the runtime stack; running out of stack can
+  cause programs to crash in strange ways. There is a discussion about stack
+  sizes in the pcrestack man page.
+
+. The default maximum compiled pattern size is around 64K. You can increase
+  this by adding --with-link-size=3 to the "configure" command. In the 8-bit
+  library, PCRE then uses three bytes instead of two for offsets to different
+  parts of the compiled pattern. In the 16-bit library, --with-link-size=3 is
+  the same as --with-link-size=4, which (in both libraries) uses four-byte
+  offsets. Increasing the internal link size reduces performance.
+
+. You can build PCRE so that its internal match() function that is called from
+  pcre_exec() does not call itself recursively. Instead, it uses memory blocks
+  obtained from the heap via the special functions pcre_stack_malloc() and
+  pcre_stack_free() to save data that would otherwise be saved on the stack. To
+  build PCRE like this, use
+
+  --disable-stack-for-recursion
+
+  on the "configure" command. PCRE runs more slowly in this mode, but it may be
+  necessary in environments with limited stack sizes. This applies only to the
+  normal execution of the pcre_exec() function; if JIT support is being
+  successfully used, it is not relevant. Equally, it does not apply to
+  pcre_dfa_exec(), which does not use deeply nested recursion. There is a
+  discussion about stack sizes in the pcrestack man page.
+
+. For speed, PCRE uses four tables for manipulating and identifying characters
+  whose code point values are less than 256. By default, it uses a set of
+  tables for ASCII encoding that is part of the distribution. If you specify
+
+  --enable-rebuild-chartables
+
+  a program called dftables is compiled and run in the default C locale when
+  you obey "make". It builds a source file called pcre_chartables.c. If you do
+  not specify this option, pcre_chartables.c is created as a copy of
+  pcre_chartables.c.dist. See "Character tables" below for further information.
+
+. It is possible to compile PCRE for use on systems that use EBCDIC as their
+  character code (as opposed to ASCII) by specifying
+
+  --enable-ebcdic
+
+  This automatically implies --enable-rebuild-chartables (see above). However,
+  when PCRE is built this way, it always operates in EBCDIC. It cannot support
+  both EBCDIC and UTF-8/16.
+
+. The pcregrep program currently supports only 8-bit data files, and so
+  requires the 8-bit PCRE library. It is possible to compile pcregrep to use
+  libz and/or libbz2, in order to read .gz and .bz2 files (respectively), by
+  specifying one or both of
+
+  --enable-pcregrep-libz
+  --enable-pcregrep-libbz2
+
+  Of course, the relevant libraries must be installed on your system.
+
+. The default size of internal buffer used by pcregrep can be set by, for
+  example:
+
+  --with-pcregrep-bufsize=50K
+
+  The default value is 20K.
+
+. It is possible to compile pcretest so that it links with the libreadline
+  or libedit libraries, by specifying, respectively,
+
+  --enable-pcretest-libreadline or --enable-pcretest-libedit
+
+  If this is done, when pcretest's input is from a terminal, it reads it using
+  the readline() function. This provides line-editing and history facilities.
+  Note that libreadline is GPL-licenced, so if you distribute a binary of
+  pcretest linked in this way, there may be licensing issues. These can be
+  avoided by linking with libedit (which has a BSD licence) instead.
+
+  Enabling libreadline causes the -lreadline option to be added to the pcretest
+  build. In many operating environments with a sytem-installed readline
+  library this is sufficient. However, in some environments (e.g. if an
+  unmodified distribution version of readline is in use), it may be necessary
+  to specify something like LIBS="-lncurses" as well. This is because, to quote
+  the readline INSTALL, "Readline uses the termcap functions, but does not link
+  with the termcap or curses library itself, allowing applications which link
+  with readline the to choose an appropriate library." If you get error
+  messages about missing functions tgetstr, tgetent, tputs, tgetflag, or tgoto,
+  this is the problem, and linking with the ncurses library should fix it.
+
+The "configure" script builds the following files for the basic C library:
+
+. Makefile             the makefile that builds the library
+. config.h             build-time configuration options for the library
+. pcre.h               the public PCRE header file
+. pcre-config          script that shows the building settings such as CFLAGS
+                         that were set for "configure"
+. libpcre.pc         ) data for the pkg-config command
+. libpcre16.pc       )
+. libpcreposix.pc    )
+. libtool              script that builds shared and/or static libraries
+
+Versions of config.h and pcre.h are distributed in the PCRE tarballs under the
+names config.h.generic and pcre.h.generic. These are provided for those who
+have to built PCRE without using "configure" or CMake. If you use "configure"
+or CMake, the .generic versions are not used.
+
+When building the 8-bit library, if a C++ compiler is found, the following
+files are also built:
+
+. libpcrecpp.pc        data for the pkg-config command
+. pcrecpparg.h         header file for calling PCRE via the C++ wrapper
+. pcre_stringpiece.h   header for the C++ "stringpiece" functions
+
+The "configure" script also creates config.status, which is an executable
+script that can be run to recreate the configuration, and config.log, which
+contains compiler output from tests that "configure" runs.
+
+Once "configure" has run, you can run "make". This builds either or both of the
+libraries libpcre and libpcre16, and a test program called pcretest. If you
+enabled JIT support with --enable-jit, a test program called pcre_jit_test is
+built as well.
+
+If the 8-bit library is built, libpcreposix and the pcregrep command are also
+built, and if a C++ compiler was found on your system, and you did not disable
+it with --disable-cpp, "make" builds the C++ wrapper library, which is called
+libpcrecpp, as well as some test programs called pcrecpp_unittest,
+pcre_scanner_unittest, and pcre_stringpiece_unittest.
+
+The command "make check" runs all the appropriate tests. Details of the PCRE
+tests are given below in a separate section of this document.
+
+You can use "make install" to install PCRE into live directories on your
+system. The following are installed (file names are all relative to the
+<prefix> that is set when "configure" is run):
+
+  Commands (bin):
+    pcretest
+    pcregrep (if 8-bit support is enabled)
+    pcre-config
+
+  Libraries (lib):
+    libpcre16     (if 16-bit support is enabled)
+    libpcre       (if 8-bit support is enabled)
+    libpcreposix  (if 8-bit support is enabled)
+    libpcrecpp    (if 8-bit and C++ support is enabled)
+
+  Configuration information (lib/pkgconfig):
+    libpcre16.pc
+    libpcre.pc
+    libpcreposix.pc
+    libpcrecpp.pc (if C++ support is enabled)
+
+  Header files (include):
+    pcre.h
+    pcreposix.h
+    pcre_scanner.h      )
+    pcre_stringpiece.h  ) if C++ support is enabled
+    pcrecpp.h           )
+    pcrecpparg.h        )
+
+  Man pages (share/man/man{1,3}):
+    pcregrep.1
+    pcretest.1
+    pcre-config.1
+    pcre.3
+    pcre*.3 (lots more pages, all starting "pcre")
+
+  HTML documentation (share/doc/pcre/html):
+    index.html
+    *.html (lots more pages, hyperlinked from index.html)
+
+  Text file documentation (share/doc/pcre):
+    AUTHORS
+    COPYING
+    ChangeLog
+    LICENCE
+    NEWS
+    README
+    pcre.txt         (a concatenation of the man(3) pages)
+    pcretest.txt     the pcretest man page
+    pcregrep.txt     the pcregrep man page
+    pcre-config.txt  the pcre-config man page
+
+If you want to remove PCRE from your system, you can run "make uninstall".
+This removes all the files that "make install" installed. However, it does not
+remove any directories, because these are often shared with other programs.
+
+
+Retrieving configuration information
+------------------------------------
+
+Running "make install" installs the command pcre-config, which can be used to
+recall information about the PCRE configuration and installation. For example:
+
+  pcre-config --version
+
+prints the version number, and
+
+  pcre-config --libs
+
+outputs information about where the library is installed. This command can be
+included in makefiles for programs that use PCRE, saving the programmer from
+having to remember too many details.
+
+The pkg-config command is another system for saving and retrieving information
+about installed libraries. Instead of separate commands for each library, a
+single command is used. For example:
+
+  pkg-config --cflags pcre
+
+The data is held in *.pc files that are installed in a directory called
+<prefix>/lib/pkgconfig.
+
+
+Shared libraries
+----------------
+
+The default distribution builds PCRE as shared libraries and static libraries,
+as long as the operating system supports shared libraries. Shared library
+support relies on the "libtool" script which is built as part of the
+"configure" process.
+
+The libtool script is used to compile and link both shared and static
+libraries. They are placed in a subdirectory called .libs when they are newly
+built. The programs pcretest and pcregrep are built to use these uninstalled
+libraries (by means of wrapper scripts in the case of shared libraries). When
+you use "make install" to install shared libraries, pcregrep and pcretest are
+automatically re-built to use the newly installed shared libraries before being
+installed themselves. However, the versions left in the build directory still
+use the uninstalled libraries.
+
+To build PCRE using static libraries only you must use --disable-shared when
+configuring it. For example:
+
+./configure --prefix=/usr/gnu --disable-shared
+
+Then run "make" in the usual way. Similarly, you can use --disable-static to
+build only shared libraries.
+
+
+Cross-compiling using autotools
+-------------------------------
+
+You can specify CC and CFLAGS in the normal way to the "configure" command, in
+order to cross-compile PCRE for some other host. However, you should NOT
+specify --enable-rebuild-chartables, because if you do, the dftables.c source
+file is compiled and run on the local host, in order to generate the inbuilt
+character tables (the pcre_chartables.c file). This will probably not work,
+because dftables.c needs to be compiled with the local compiler, not the cross
+compiler.
+
+When --enable-rebuild-chartables is not specified, pcre_chartables.c is created
+by making a copy of pcre_chartables.c.dist, which is a default set of tables
+that assumes ASCII code. Cross-compiling with the default tables should not be
+a problem.
+
+If you need to modify the character tables when cross-compiling, you should
+move pcre_chartables.c.dist out of the way, then compile dftables.c by hand and
+run it on the local host to make a new version of pcre_chartables.c.dist.
+Then when you cross-compile PCRE this new version of the tables will be used.
+
+
+Using HP's ANSI C++ compiler (aCC)
+----------------------------------
+
+Unless C++ support is disabled by specifying the "--disable-cpp" option of the
+"configure" script, you must include the "-AA" option in the CXXFLAGS
+environment variable in order for the C++ components to compile correctly.
+
+Also, note that the aCC compiler on PA-RISC platforms may have a defect whereby
+needed libraries fail to get included when specifying the "-AA" compiler
+option. If you experience unresolved symbols when linking the C++ programs,
+use the workaround of specifying the following environment variable prior to
+running the "configure" script:
+
+  CXXLDFLAGS="-lstd_v2 -lCsup_v2"
+
+
+Using Sun's compilers for Solaris
+---------------------------------
+
+A user reports that the following configurations work on Solaris 9 sparcv9 and
+Solaris 9 x86 (32-bit):
+
+  Solaris 9 sparcv9: ./configure --disable-cpp CC=/bin/cc CFLAGS="-m64 -g"
+  Solaris 9 x86:     ./configure --disable-cpp CC=/bin/cc CFLAGS="-g"
+
+
+Using PCRE from MySQL
+---------------------
+
+On systems where both PCRE and MySQL are installed, it is possible to make use
+of PCRE from within MySQL, as an alternative to the built-in pattern matching.
+There is a web page that tells you how to do this:
+
+  http://www.mysqludf.org/lib_mysqludf_preg/index.php
+
+
+Making new tarballs
+-------------------
+
+The command "make dist" creates three PCRE tarballs, in tar.gz, tar.bz2, and
+zip formats. The command "make distcheck" does the same, but then does a trial
+build of the new distribution to ensure that it works.
+
+If you have modified any of the man page sources in the doc directory, you
+should first run the PrepareRelease script before making a distribution. This
+script creates the .txt and HTML forms of the documentation from the man pages.
+
+
+Testing PCRE
+------------
+
+To test the basic PCRE library on a Unix-like system, run the RunTest script.
+There is another script called RunGrepTest that tests the options of the
+pcregrep command. If the C++ wrapper library is built, three test programs
+called pcrecpp_unittest, pcre_scanner_unittest, and pcre_stringpiece_unittest
+are also built. When JIT support is enabled, another test program called
+pcre_jit_test is built.
+
+Both the scripts and all the program tests are run if you obey "make check" or
+"make test". For other environments, see the instructions in
+NON-AUTOTOOLS-BUILD.
+
+The RunTest script runs the pcretest test program (which is documented in its
+own man page) on each of the relevant testinput files in the testdata
+directory, and compares the output with the contents of the corresponding
+testoutput files. Some tests are relevant only when certain build-time options
+were selected. For example, the tests for UTF-8/16 support are run only if
+--enable-utf was used. RunTest outputs a comment when it skips a test.
+
+Many of the tests that are not skipped are run up to three times. The second
+run forces pcre_study() to be called for all patterns except for a few in some
+tests that are marked "never study" (see the pcretest program for how this is
+done). If JIT support is available, the non-DFA tests are run a third time,
+this time with a forced pcre_study() with the PCRE_STUDY_JIT_COMPILE option.
+
+When both 8-bit and 16-bit support is enabled, the entire set of tests is run
+twice, once for each library. If you want to run just one set of tests, call
+RunTest with either the -8 or -16 option.
+
+RunTest uses a file called testtry to hold the main output from pcretest.
+Other files whose names begin with "test" are used as working files in some
+tests. To run pcretest on just one or more specific test files, give their
+numbers as arguments to RunTest, for example:
+
+  RunTest 2 7 11
+
+You can also call RunTest with the single argument "list" to cause it to output
+a list of tests.
+
+The first test file can be fed directly into the perltest.pl script to check
+that Perl gives the same results. The only difference you should see is in the
+first few lines, where the Perl version is given instead of the PCRE version.
+
+The second set of tests check pcre_fullinfo(), pcre_study(),
+pcre_copy_substring(), pcre_get_substring(), pcre_get_substring_list(), error
+detection, and run-time flags that are specific to PCRE, as well as the POSIX
+wrapper API. It also uses the debugging flags to check some of the internals of
+pcre_compile().
+
+If you build PCRE with a locale setting that is not the standard C locale, the
+character tables may be different (see next paragraph). In some cases, this may
+cause failures in the second set of tests. For example, in a locale where the
+isprint() function yields TRUE for characters in the range 128-255, the use of
+[:isascii:] inside a character class defines a different set of characters, and
+this shows up in this test as a difference in the compiled code, which is being
+listed for checking. Where the comparison test output contains [\x00-\x7f] the
+test will contain [\x00-\xff], and similarly in some other cases. This is not a
+bug in PCRE.
+
+The third set of tests checks pcre_maketables(), the facility for building a
+set of character tables for a specific locale and using them instead of the
+default tables. The tests make use of the "fr_FR" (French) locale. Before
+running the test, the script checks for the presence of this locale by running
+the "locale" command. If that command fails, or if it doesn't include "fr_FR"
+in the list of available locales, the third test cannot be run, and a comment
+is output to say why. If running this test produces instances of the error
+
+  ** Failed to set locale "fr_FR"
+
+in the comparison output, it means that locale is not available on your system,
+despite being listed by "locale". This does not mean that PCRE is broken.
+
+[If you are trying to run this test on Windows, you may be able to get it to
+work by changing "fr_FR" to "french" everywhere it occurs. Alternatively, use
+RunTest.bat. The version of RunTest.bat included with PCRE 7.4 and above uses
+Windows versions of test 2. More info on using RunTest.bat is included in the
+document entitled NON-UNIX-USE.]
+
+The fourth and fifth tests check the UTF-8/16 support and error handling and
+internal UTF features of PCRE that are not relevant to Perl, respectively. The
+sixth and seventh tests do the same for Unicode character properties support.
+
+The eighth, ninth, and tenth tests check the pcre_dfa_exec() alternative
+matching function, in non-UTF-8/16 mode, UTF-8/16 mode, and UTF-8/16 mode with
+Unicode property support, respectively.
+
+The eleventh test checks some internal offsets and code size features; it is
+run only when the default "link size" of 2 is set (in other cases the sizes
+change) and when Unicode property support is enabled.
+
+The twelfth test is run only when JIT support is available, and the thirteenth
+test is run only when JIT support is not available. They test some JIT-specific
+features such as information output from pcretest about JIT compilation.
+
+The fourteenth, fifteenth, and sixteenth tests are run only in 8-bit mode, and
+the seventeenth, eighteenth, and nineteenth tests are run only in 16-bit mode.
+These are tests that generate different output in the two modes. They are for
+general cases, UTF-8/16 support, and Unicode property support, respectively.
+
+The twentieth test is run only in 16-bit mode. It tests some specific 16-bit
+features of the DFA matching engine.
+
+The twenty-first and twenty-second tests are run only in 16-bit mode, when the
+link size is set to 2. They test reloading pre-compiled patterns.
+
+
+Character tables
+----------------
+
+For speed, PCRE uses four tables for manipulating and identifying characters
+whose code point values are less than 256. The final argument of the
+pcre_compile() function is a pointer to a block of memory containing the
+concatenated tables. A call to pcre_maketables() can be used to generate a set
+of tables in the current locale. If the final argument for pcre_compile() is
+passed as NULL, a set of default tables that is built into the binary is used.
+
+The source file called pcre_chartables.c contains the default set of tables. By
+default, this is created as a copy of pcre_chartables.c.dist, which contains
+tables for ASCII coding. However, if --enable-rebuild-chartables is specified
+for ./configure, a different version of pcre_chartables.c is built by the
+program dftables (compiled from dftables.c), which uses the ANSI C character
+handling functions such as isalnum(), isalpha(), isupper(), islower(), etc. to
+build the table sources. This means that the default C locale which is set for
+your system will control the contents of these default tables. You can change
+the default tables by editing pcre_chartables.c and then re-building PCRE. If
+you do this, you should take care to ensure that the file does not get
+automatically re-generated. The best way to do this is to move
+pcre_chartables.c.dist out of the way and replace it with your customized
+tables.
+
+When the dftables program is run as a result of --enable-rebuild-chartables,
+it uses the default C locale that is set on your system. It does not pay
+attention to the LC_xxx environment variables. In other words, it uses the
+system's default locale rather than whatever the compiling user happens to have
+set. If you really do want to build a source set of character tables in a
+locale that is specified by the LC_xxx variables, you can run the dftables
+program by hand with the -L option. For example:
+
+  ./dftables -L pcre_chartables.c.special
+
+The first two 256-byte tables provide lower casing and case flipping functions,
+respectively. The next table consists of three 32-byte bit maps which identify
+digits, "word" characters, and white space, respectively. These are used when
+building 32-byte bit maps that represent character classes for code points less
+than 256.
+
+The final 256-byte table has bits indicating various character types, as
+follows:
+
+    1   white space character
+    2   letter
+    4   decimal digit
+    8   hexadecimal digit
+   16   alphanumeric or '_'
+  128   regular expression metacharacter or binary zero
+
+You should not alter the set of characters that contain the 128 bit, as that
+will cause PCRE to malfunction.
+
+
+File manifest
+-------------
+
+The distribution should contain the files listed below. Where a file name is
+given as pcre[16]_xxx it means that there are two files, one with the name
+pcre_xxx and the other with the name pcre16_xxx.
+
+(A) Source files of the PCRE library functions and their headers:
+
+  dftables.c              auxiliary program for building pcre_chartables.c
+                            when --enable-rebuild-chartables is specified
+
+  pcre_chartables.c.dist  a default set of character tables that assume ASCII
+                            coding; used, unless --enable-rebuild-chartables is
+                            specified, by copying to pcre[16]_chartables.c
+
+  pcreposix.c             )
+  pcre[16]_byte_order.c   )
+  pcre[16]_compile.c      )
+  pcre[16]_config.c       )
+  pcre[16]_dfa_exec.c     )
+  pcre[16]_exec.c         )
+  pcre[16]_fullinfo.c     )
+  pcre[16]_get.c          ) sources for the functions in the library,
+  pcre[16]_globals.c      )   and some internal functions that they use
+  pcre[16]_jit_compile.c  )
+  pcre[16]_maketables.c   )
+  pcre[16]_newline.c      )
+  pcre[16]_refcount.c     )
+  pcre[16]_string_utils.c )
+  pcre[16]_study.c        )
+  pcre[16]_tables.c       )
+  pcre[16]_ucd.c          )
+  pcre[16]_version.c      )
+  pcre[16]_xclass.c       )
+  pcre_ord2utf8.c         )
+  pcre_valid_utf8.c       )
+  pcre16_ord2utf16.c      )
+  pcre16_utf16_utils.c    )
+  pcre16_valid_utf16.c    )
+
+  pcre[16]_printint.c     ) debugging function that is used by pcretest,
+                          )   and can also be #included in pcre_compile()
+
+  pcre.h.in               template for pcre.h when built by "configure"
+  pcreposix.h             header for the external POSIX wrapper API
+  pcre_internal.h         header for internal use
+  sljit/*                 16 files that make up the JIT compiler
+  ucp.h                   header for Unicode property handling
+
+  config.h.in             template for config.h, which is built by "configure"
+
+  pcrecpp.h               public header file for the C++ wrapper
+  pcrecpparg.h.in         template for another C++ header file
+  pcre_scanner.h          public header file for C++ scanner functions
+  pcrecpp.cc              )
+  pcre_scanner.cc         ) source for the C++ wrapper library
+
+  pcre_stringpiece.h.in   template for pcre_stringpiece.h, the header for the
+                            C++ stringpiece functions
+  pcre_stringpiece.cc     source for the C++ stringpiece functions
+
+(B) Source files for programs that use PCRE:
+
+  pcredemo.c              simple demonstration of coding calls to PCRE
+  pcregrep.c              source of a grep utility that uses PCRE
+  pcretest.c              comprehensive test program
+
+(C) Auxiliary files:
+
+  132html                 script to turn "man" pages into HTML
+  AUTHORS                 information about the author of PCRE
+  ChangeLog               log of changes to the code
+  CleanTxt                script to clean nroff output for txt man pages
+  Detrail                 script to remove trailing spaces
+  HACKING                 some notes about the internals of PCRE
+  INSTALL                 generic installation instructions
+  LICENCE                 conditions for the use of PCRE
+  COPYING                 the same, using GNU's standard name
+  Makefile.in             ) template for Unix Makefile, which is built by
+                          )   "configure"
+  Makefile.am             ) the automake input that was used to create
+                          )   Makefile.in
+  NEWS                    important changes in this release
+  NON-UNIX-USE            the previous name for NON-AUTOTOOLS-BUILD
+  NON-AUTOTOOLS-BUILD     notes on building PCRE without using autotools
+  PrepareRelease          script to make preparations for "make dist"
+  README                  this file
+  RunTest                 a Unix shell script for running tests
+  RunGrepTest             a Unix shell script for pcregrep tests
+  aclocal.m4              m4 macros (generated by "aclocal")
+  config.guess            ) files used by libtool,
+  config.sub              )   used only when building a shared library
+  configure               a configuring shell script (built by autoconf)
+  configure.ac            ) the autoconf input that was used to build
+                          )   "configure" and config.h
+  depcomp                 ) script to find program dependencies, generated by
+                          )   automake
+  doc/*.3                 man page sources for PCRE
+  doc/*.1                 man page sources for pcregrep and pcretest
+  doc/index.html.src      the base HTML page
+  doc/html/*              HTML documentation
+  doc/pcre.txt            plain text version of the man pages
+  doc/pcretest.txt        plain text documentation of test program
+  doc/perltest.txt        plain text documentation of Perl test program
+  install-sh              a shell script for installing files
+  libpcre16.pc.in         template for libpcre16.pc for pkg-config
+  libpcre.pc.in           template for libpcre.pc for pkg-config
+  libpcreposix.pc.in      template for libpcreposix.pc for pkg-config
+  libpcrecpp.pc.in        template for libpcrecpp.pc for pkg-config
+  ltmain.sh               file used to build a libtool script
+  missing                 ) common stub for a few missing GNU programs while
+                          )   installing, generated by automake
+  mkinstalldirs           script for making install directories
+  perltest.pl             Perl test program
+  pcre-config.in          source of script which retains PCRE information
+  pcre_jit_test.c         test program for the JIT compiler
+  pcrecpp_unittest.cc          )
+  pcre_scanner_unittest.cc     ) test programs for the C++ wrapper
+  pcre_stringpiece_unittest.cc )
+  testdata/testinput*     test data for main library tests
+  testdata/testoutput*    expected test results
+  testdata/grep*          input and output for pcregrep tests
+  testdata/*              other supporting test files
+
+(D) Auxiliary files for cmake support
+
+  cmake/COPYING-CMAKE-SCRIPTS
+  cmake/FindPackageHandleStandardArgs.cmake
+  cmake/FindEditline.cmake
+  cmake/FindReadline.cmake
+  CMakeLists.txt
+  config-cmake.h.in
+
+(E) Auxiliary files for VPASCAL
+
+  makevp.bat
+  makevp_c.txt
+  makevp_l.txt
+  pcregexp.pas
+
+(F) Auxiliary files for building PCRE "by hand"
+
+  pcre.h.generic          ) a version of the public PCRE header file
+                          )   for use in non-"configure" environments
+  config.h.generic        ) a version of config.h for use in non-"configure"
+                          )   environments
+
+(F) Miscellaneous
+
+  RunTest.bat            a script for running tests under Windows
+
+Philip Hazel
+Email local part: ph10
+Email domain: cam.ac.uk
+Last updated: 18 June 2012
diff --git a/8.31/RunGrepTest b/8.31/RunGrepTest
new file mode 100644
index 0000000..706c777
--- /dev/null
+++ b/8.31/RunGrepTest
@@ -0,0 +1,511 @@
+#! /bin/sh
+
+# Run pcregrep tests. The assumption is that the PCRE tests check the library
+# itself. What we are checking here is the file handling and options that are
+# supported by pcregrep.
+
+# Set the C locale, so that sort(1) behaves predictably.
+
+LC_ALL=C
+export LC_ALL
+
+# Remove any non-default colouring and aliases that the caller may have set.
+
+unset PCREGREP_COLOUR PCREGREP_COLOR
+unset cp ls mv rm
+
+# Set the program to be tested, and valgrind settings when requested.
+
+pcregrep=`pwd`/pcregrep
+
+valgrind=
+while [ $# -gt 0 ] ; do
+  case $1 in
+    valgrind) valgrind="valgrind -q --leak-check=no --smc-check=all";;
+    *) echo "RunGrepTest: Unknown argument $1"; exit 1;;
+  esac
+  shift
+done
+
+echo " "
+if [ "$valgrind" = "" ] ; then
+  echo "Testing pcregrep"
+else
+  echo "Testing pcregrep using valgrind"
+fi
+
+$pcregrep -V
+
+# Set up a suitable "diff" command for comparison. Some systems have a diff
+# that lacks a -u option. Try to deal with this; better do the test for the -b
+# option as well.
+
+cf="diff -ub"
+if diff -u /dev/null /dev/null; then
+  if diff -ub /dev/null /dev/null; then cf="diff -ub"; else cf="diff -u"; fi
+else
+  if diff -b /dev/null /dev/null; then cf="diff -b"; else cf="diff"; fi
+fi
+
+# If PCRE has been built in a directory other than the source directory, and
+# this test is being run from "make check" as usual, then $srcdir will be
+# set. If not, set it to the current or parent directory, whichever one
+# contains the test data. We then arrange to run the pcregrep command in the
+# source directory so that the file names that appear in the output are always
+# the same.
+
+if [ -z "$srcdir" -o ! -d "$srcdir/testdata" ] ; then
+  if [ -d "./testdata" ] ; then
+    srcdir=.
+  elif [ -d "../testdata" ] ; then
+    srcdir=..
+  else
+    echo "Cannot find the testdata directory"
+    exit 1
+  fi
+fi
+
+# Check for the availability of UTF-8 support
+
+./pcretest -C utf >/dev/null
+utf8=$?
+
+echo "---------------------------- Test 1 ------------------------------" >testtry
+(cd $srcdir; $valgrind $pcregrep PATTERN ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 2 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep '^PATTERN' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 3 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -in PATTERN ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 4 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -ic PATTERN ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 5 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -in PATTERN ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 6 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -inh PATTERN ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 7 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -il PATTERN ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 8 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -l PATTERN ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 9 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -q PATTERN ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 10 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -q NEVER-PATTERN ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 11 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -vn pattern ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 12 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -ix pattern ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 13 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -f./testdata/greplist ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 14 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -w pat ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 15 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep 'abc^*' ./testdata/grepinput) 2>>testtry >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 16 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep abc ./testdata/grepinput ./testdata/nonexistfile) 2>>testtry >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 17 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -M 'the\noutput' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 18 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -Mn '(the\noutput|dog\.\n--)' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 19 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -Mix 'Pattern' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 20 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -Mixn 'complete pair\nof lines' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 21 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -nA3 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 22 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -nB3 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 23 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -C3 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 24 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -A9 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 25 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -nB9 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 26 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -A9 -B9 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 27 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -A10 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 28 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -nB10 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 29 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -C12 -B10 'four' ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 30 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -inB3 'pattern' ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 31 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -inA3 'pattern' ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 32 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -L 'fox' ./testdata/grepinput ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 33 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep 'fox' ./testdata/grepnonexist) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 34 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -s 'fox' ./testdata/grepnonexist) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 35 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -L -r --include=grepinputx --exclude-dir='^\.' 'fox' ./testdata) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 36 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -L -r --include=grepinput --exclude 'grepinput$' --exclude_dir='^\.' 'fox' ./testdata | sort) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 37 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep  '^(a+)*\d' ./testdata/grepinput) >>testtry 2>teststderr
+echo "RC=$?" >>testtry
+echo "======== STDERR ========" >>testtry
+cat teststderr >>testtry
+
+echo "---------------------------- Test 38 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep '>\x00<' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 39 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -A1 'before the binary zero' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 40 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -B1 'after the binary zero' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 41 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -B1 -o '\w+ the binary zero' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 42 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -B1 -onH '\w+ the binary zero' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 43 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -on 'before|zero|after' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 44 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -on -e before -ezero -e after ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 45 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -on -f ./testdata/greplist -e binary ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 46 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -eabc -e '(unclosed' ./testdata/grepinput) 2>>testtry >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 47 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -Fx "AB.VE
+elephant" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 48 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -F "AB.VE
+elephant" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 49 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -F -e DATA -e "AB.VE
+elephant" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 50 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep "^(abc|def|ghi|jkl)" ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 51 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -Mv "brown\sfox" ./testdata/grepinputv) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 52 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --colour=always jumps ./testdata/grepinputv) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 53 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --file-offsets 'before|zero|after' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 54 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --line-offsets 'before|zero|after' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 55 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -f./testdata/greplist --color=always ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 56 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -c lazy ./testdata/grepinput*) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 57 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -c -l lazy ./testdata/grepinput*) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 58 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --regex=PATTERN ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 59 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --regexp=PATTERN ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 60 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --regex PATTERN ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 61 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --regexp PATTERN ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 62 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --match-limit=1000 --no-jit -M 'This is a file(.|\R)*file.' ./testdata/grepinput) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 63 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --recursion-limit=1000 --no-jit -M 'This is a file(.|\R)*file.' ./testdata/grepinput) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 64 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o1 '(?<=PAT)TERN (ap(pear)s)' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 65 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o2 '(?<=PAT)TERN (ap(pear)s)' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 66 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o3 '(?<=PAT)TERN (ap(pear)s)' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 67 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o12 '(?<=PAT)TERN (ap(pear)s)' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 68 ------------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --only-matching=2 '(?<=PAT)TERN (ap(pear)s)' ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 69 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -vn --colour=always pattern ./testdata/grepinputx) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 70 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --color=always -M "triple:\t.*\n\n" ./testdata/grepinput3) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 71 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o "^01|^02|^03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 72 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --color=always "^01|^02|^03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 73 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o --colour=always "^01|^02|^03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 74 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o "^01|02|^03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 75 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --color=always "^01|02|^03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 76 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o --colour=always "^01|02|^03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 77 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o "^01|^02|03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 78 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --color=always "^01|^02|03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 79 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o --colour=always "^01|^02|03" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 80 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o "\b01|\b02" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 81 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --color=always "\\b01|\\b02" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 82 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -o --colour=always "\\b01|\\b02" ./testdata/grepinput) >>testtry
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 83 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --buffer-size=100 "^a" ./testdata/grepinput3) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 84 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --file-list ./testdata/grepfilelist "fox|complete") >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 85 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --file-list=./testdata/grepfilelist "dolor" ./testdata/grepinput3) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 86 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep "dog" ./testdata/grepbinary) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 87 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep "cat" ./testdata/grepbinary) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 88 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -v "cat" ./testdata/grepbinary) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 89 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -I "dog" ./testdata/grepbinary) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 90 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --binary-files=without-match "dog" ./testdata/grepbinary) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 91 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep -a "dog" ./testdata/grepbinary) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 92 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --binary-files=text "dog" ./testdata/grepbinary) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+echo "---------------------------- Test 93 -----------------------------" >>testtry
+(cd $srcdir; $valgrind $pcregrep --text "dog" ./testdata/grepbinary) >>testtry 2>&1
+echo "RC=$?" >>testtry
+
+# Now compare the results.
+
+$cf $srcdir/testdata/grepoutput testtry
+if [ $? != 0 ] ; then exit 1; fi
+
+
+# These tests require UTF-8 support
+
+if [ $utf8 -ne 0 ] ; then
+  echo "Testing pcregrep UTF-8 features"
+
+  echo "---------------------------- Test U1 ------------------------------" >testtry
+  (cd $srcdir; $valgrind $pcregrep -n -u --newline=any "^X" ./testdata/grepinput8) >>testtry
+  echo "RC=$?" >>testtry
+
+  echo "---------------------------- Test U2 ------------------------------" >>testtry
+  (cd $srcdir; $valgrind $pcregrep -n -u -C 3 --newline=any "Match" ./testdata/grepinput8) >>testtry
+  echo "RC=$?" >>testtry
+
+  $cf $srcdir/testdata/grepoutput8 testtry
+  if [ $? != 0 ] ; then exit 1; fi
+
+else
+  echo "Skipping pcregrep UTF-8 tests: no UTF-8 support in PCRE library"
+fi
+
+
+# We go to some contortions to try to ensure that the tests for the various
+# newline settings will work in environments where the normal newline sequence
+# is not \n. Do not use exported files, whose line endings might be changed.
+# Instead, create an input file using printf so that its contents are exactly
+# what we want. Note the messy fudge to get printf to write a string that
+# starts with a hyphen.
+
+echo "Testing pcregrep newline settings"
+printf "abc\rdef\r\nghi\njkl" >testNinput
+
+printf "%c--------------------------- Test N1 ------------------------------\r\n" - >testtry
+$valgrind $pcregrep -n -N CR "^(abc|def|ghi|jkl)" testNinput >>testtry
+
+printf "%c--------------------------- Test N2 ------------------------------\r\n" - >>testtry
+$valgrind $pcregrep -n --newline=crlf "^(abc|def|ghi|jkl)" testNinput >>testtry
+
+printf "%c--------------------------- Test N3 ------------------------------\r\n" - >>testtry
+pattern=`printf 'def\rjkl'`
+$valgrind $pcregrep -n --newline=cr -F "$pattern" testNinput >>testtry
+
+printf "%c--------------------------- Test N4 ------------------------------\r\n" - >>testtry
+$valgrind $pcregrep -n --newline=crlf -F -f $srcdir/testdata/greppatN4 testNinput >>testtry
+
+printf "%c--------------------------- Test N5 ------------------------------\r\n" - >>testtry
+$valgrind $pcregrep -n --newline=any "^(abc|def|ghi|jkl)" testNinput >>testtry
+
+printf "%c--------------------------- Test N6 ------------------------------\r\n" - >>testtry
+$valgrind $pcregrep -n --newline=anycrlf "^(abc|def|ghi|jkl)" testNinput >>testtry
+
+$cf $srcdir/testdata/grepoutputN testtry
+if [ $? != 0 ] ; then exit 1; fi
+
+exit 0
+
+# End
diff --git a/8.31/RunTest b/8.31/RunTest
new file mode 100644
index 0000000..21ff215
--- /dev/null
+++ b/8.31/RunTest
@@ -0,0 +1,862 @@
+#! /bin/sh
+
+# Run the PCRE tests using the pcretest program. The appropriate tests are
+# selected, depending on which build-time options were used.
+
+# All tests are now run both with and without -s, to ensure that everything is
+# tested with and without studying. However, there are some tests that produce
+# different output after studying, typically when we are tracing the actual
+# matching process (for example, using auto-callouts). In these few cases, the
+# tests are duplicated in the files, one with /S to force studying always, and
+# one with /SS to force *not* studying always. The use of -s doesn't then make
+# any difference to their output. There is also one test which compiles invalid
+# UTF-8 with the UTF-8 check turned off; for this, studying must also be
+# disabled with /SS.
+
+# When JIT support is available, all the tests are also run with -s+ to test
+# (again, almost) everything with studying and the JIT option. There are also
+# two tests for JIT-specific features, one to be run when JIT support is
+# available, and one when it is not.
+
+# Whichever of the 8-bit and 16-bit libraries exist are tested. It is also
+# possible to select which to test by the arguments -8 or -16.
+
+# Other arguments for this script can be individual test numbers, or the word
+# "valgrind", or "sim" followed by an argument to run cross-compiled
+# executables under a simulator, for example:
+#
+# RunTest 3 sim "qemu-arm -s 8388608"
+#
+# Finally, if the script is obeyed as "RunTest list", a list of available
+# tests is output, but none of them are run.
+
+# Define test titles in variables so that they can be output as a list. Some
+# of them are modified (e.g. with -8 or -16) when used in the actual tests.
+
+title1="Test 1: Main functionality (Compatible with Perl >= 5.10)"
+title2="Test 2: API, errors, internals, and non-Perl stuff"
+title3="Test 3: Locale-specific features"
+title4A="Test 4: UTF"
+title4B=" support (Compatible with Perl >= 5.10)"
+title5="Test 5: API, internals, and non-Perl stuff for UTF"
+title6="Test 6: Unicode property support (Compatible with Perl >= 5.10)"
+title7="Test 7: API, internals, and non-Perl stuff for Unicode property support"
+title8="Test 8: DFA matching main functionality"
+title9="Test 9: DFA matching with UTF"
+title10="Test 10: DFA matching with Unicode properties"
+title11="Test 11: Internal offsets and code size tests"
+title12="Test 12: JIT-specific features (JIT available)"
+title13="Test 13: JIT-specific features (JIT not available)"
+title14="Test 14: Specials for the basic 8-bit library"
+title15="Test 15: Specials for the 8-bit library with UTF-8 support"
+title16="Test 16: Specials for the 8-bit library with Unicode propery support"
+title17="Test 17: Specials for the basic 16-bit library"
+title18="Test 18: Specials for the 16-bit library with UTF-16 support"
+title19="Test 19: Specials for the 16-bit library with Unicode propery support"
+title20="Test 20: DFA specials for the basic 16-bit library"
+title21="Test 21: Reloads for the basic 16-bit library"
+title22="Test 22: Reloads for the 16-bit library with UTF-16 support"
+
+if [ $# -eq 1 -a "$1" = "list" ]; then
+  echo $title1
+  echo $title2 "(not UTF)"
+  echo $title3
+  echo $title4A $title4B
+  echo $title5 support
+  echo $title6
+  echo $title7
+  echo $title8
+  echo $title9
+  echo $title10
+  echo $title11
+  echo $title12
+  echo $title13
+  echo $title14
+  echo $title15
+  echo $title16
+  echo $title17
+  echo $title18
+  echo $title19
+  echo $title20
+  echo $title21
+  echo $title22
+  exit 0
+fi
+
+# Default values
+
+valgrind=
+sim=
+arg8=
+arg16=
+
+# This is in case the caller has set aliases (as I do - PH)
+unset cp ls mv rm
+
+# Select which tests to run; for those that are explicitly requested, check
+# that the necessary optional facilities are available.
+
+do1=no
+do2=no
+do3=no
+do4=no
+do5=no
+do6=no
+do7=no
+do8=no
+do9=no
+do10=no
+do11=no
+do12=no
+do13=no
+do14=no
+do15=no
+do16=no
+do17=no
+do18=no
+do19=no
+do20=no
+do21=no
+do22=no
+
+while [ $# -gt 0 ] ; do
+  case $1 in
+    1) do1=yes;;
+    2) do2=yes;;
+    3) do3=yes;;
+    4) do4=yes;;
+    5) do5=yes;;
+    6) do6=yes;;
+    7) do7=yes;;
+    8) do8=yes;;
+    9) do9=yes;;
+   10) do10=yes;;
+   11) do11=yes;;
+   12) do12=yes;;
+   13) do13=yes;;
+   14) do14=yes;;
+   15) do15=yes;;
+   16) do16=yes;;
+   17) do17=yes;;
+   18) do18=yes;;
+   19) do19=yes;;
+   20) do20=yes;;
+   21) do21=yes;;
+   22) do22=yes;;
+   -8) arg8=yes;;
+  -16) arg16=yes;;
+   valgrind) valgrind="valgrind -q --smc-check=all";;
+   sim) shift; sim=$1;;
+    *) echo "Unknown test number '$1'"; exit 1;;
+  esac
+  shift
+done
+
+# Set up a suitable "diff" command for comparison. Some systems
+# have a diff that lacks a -u option. Try to deal with this.
+
+if diff -u /dev/null /dev/null; then cf="diff -u"; else cf="diff"; fi
+
+# Find the test data
+
+if [ -n "$srcdir" -a -d "$srcdir" ] ; then
+  testdata="$srcdir/testdata"
+elif [ -d "./testdata" ] ; then
+  testdata=./testdata
+elif [ -d "../testdata" ] ; then
+  testdata=../testdata
+else
+  echo "Cannot find the testdata directory"
+  exit 1
+fi
+
+# Find which optional facilities are available. In some Windows environments
+# the output of pcretest -C has CRLF at the end of each line, but the shell
+# strips only linefeeds from the output of a `backquoted` command. Hence the
+# alternative patterns.
+
+$sim ./pcretest -C linksize >/dev/null
+link_size=$?
+if [ $link_size -lt 2 ] ; then
+  echo "Failed to find internal link size"
+  exit 1
+fi
+if [ $link_size -gt 4 ] ; then
+  echo "Failed to find internal link size"
+  exit 1
+fi
+
+# Both 8-bit and 16-bit character strings may be supported, but only one
+# need be.
+
+$sim ./pcretest -C pcre8 >/dev/null
+support8=$?
+$sim ./pcretest -C pcre16 >/dev/null
+support16=$?
+if [ `expr $support8 + $support16` -eq 2 ] ; then
+  test8=
+  test16=-16
+  if [ "$arg8" = yes -a "$arg16" != yes ] ; then
+    test16=skip
+  fi
+  if [ "$arg16" = yes -a "$arg8" != yes ] ; then
+    test8=skip
+  fi
+else
+  if [ $support8 -ne 0 ] ; then
+    if [ "$arg16" = yes ] ; then
+      echo "Cannot run 16-bit library tests: 16-bit library not compiled"
+      exit 1
+    fi
+    test8=
+    test16=skip
+  else
+    if [ "$arg8" = yes ] ; then
+      echo "Cannot run 8-bit library tests: 8-bit library not compiled"
+      exit 1
+    fi
+    test8=skip
+    test16=-16
+  fi
+fi
+
+# UTF support always applies to both bit sizes if both are supported; we can't
+# have UTF-8 support without UTF-16 support (for example).
+
+$sim ./pcretest -C utf >/dev/null
+utf=$?
+
+$sim ./pcretest -C ucp >/dev/null
+ucp=$?
+
+jitopt=
+$sim ./pcretest -C jit >/dev/null
+jit=$?
+if [ $jit -ne 0 ] ; then
+  jitopt=-s+
+fi
+
+if [ $utf -eq 0 ] ; then
+  if [ $do4 = yes ] ; then
+    echo "Can't run test 4 because UTF support is not configured"
+    exit 1
+  fi
+  if [ $do5 = yes ] ; then
+    echo "Can't run test 5 because UTF support is not configured"
+    exit 1
+  fi
+  if [ $do9 = yes ] ; then
+    echo "Can't run test 8 because UTF support is not configured"
+    exit 1
+  fi
+  if [ $do15 = yes ] ; then
+    echo "Can't run test 15 because UTF support is not configured"
+    exit 1
+  fi
+  if [ $do18 = yes ] ; then
+    echo "Can't run test 18 because UTF support is not configured"
+  fi
+  if [ $do22 = yes ] ; then
+    echo "Can't run test 22 because UTF support is not configured"
+  fi
+fi
+
+if [ $ucp -eq 0 ] ; then
+  if [ $do6 = yes ] ; then
+    echo "Can't run test 6 because Unicode property support is not configured"
+    exit 1
+  fi
+  if [ $do7 = yes ] ; then
+    echo "Can't run test 7 because Unicode property support is not configured"
+    exit 1
+  fi
+  if [ $do10 = yes ] ; then
+    echo "Can't run test 10 because Unicode property support is not configured"
+    exit 1
+  fi
+  if [ $do16 = yes ] ; then
+    echo "Can't run test 16 because Unicode property support is not configured"
+    exit 1
+  fi
+  if [ $do19 = yes ] ; then
+    echo "Can't run test 19 because Unicode property support is not configured"
+    exit 1
+  fi
+fi
+
+if [ $link_size -ne 2 ] ; then
+  if [ $do11 = yes ] ; then
+    echo "Can't run test 11 because the link size ($link_size) is not 2"
+    exit 1
+  fi
+fi
+
+if [ $jit -eq 0 ] ; then
+  if [ $do12 = "yes" ] ; then
+    echo "Can't run test 12 because JIT support is not configured"
+    exit 1
+  fi
+else
+  if [ $do13 = "yes" ] ; then
+    echo "Can't run test 13 because JIT support is configured"
+    exit 1
+  fi
+fi
+
+# If no specific tests were requested, select all. Those that are not
+# relevant will be skipped.
+
+if [ $do1  = no -a $do2  = no -a $do3  = no -a $do4  = no -a \
+     $do5  = no -a $do6  = no -a $do7  = no -a $do8  = no -a \
+     $do9  = no -a $do10 = no -a $do11 = no -a $do12 = no -a \
+     $do13 = no -a $do14 = no -a $do15 = no -a $do16 = no -a \
+     $do17 = no -a $do18 = no -a $do19 = no -a $do20 = no -a \
+     $do21 = no -a $do22 = no ] ; then
+  do1=yes
+  do2=yes
+  do3=yes
+  do4=yes
+  do5=yes
+  do6=yes
+  do7=yes
+  do8=yes
+  do9=yes
+  do10=yes
+  do11=yes
+  do12=yes
+  do13=yes
+  do14=yes
+  do15=yes
+  do16=yes
+  do17=yes
+  do18=yes
+  do19=yes
+  do20=yes
+  do21=yes
+  do22=yes
+fi
+
+# Show which release and which test data
+
+echo ""
+echo PCRE C library tests using test data from $testdata
+$sim ./pcretest /dev/null
+
+for bmode in "$test8" "$test16"; do
+  case "$bmode" in
+    skip) continue;;
+    -16)  if [ "$test8" != "skip" ] ; then echo ""; fi
+          bits=16; echo "---- Testing 16-bit library ----"; echo "";;
+    *)    bits=8; echo "---- Testing 8-bit library ----"; echo "";;
+  esac
+
+# Primary test, compatible with JIT and all versions of Perl >= 5.8
+
+if [ $do1 = yes ] ; then
+  echo $title1
+  for opt in "" "-s" $jitopt; do
+    $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput1 testtry
+    if [ $? = 0 ] ; then
+      $cf $testdata/testoutput1 testtry
+      if [ $? != 0 ] ; then exit 1; fi
+    else exit 1
+    fi
+    if [ "$opt" = "-s" ] ; then echo "  OK with study"
+    elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+    else echo "  OK"
+    fi
+  done
+fi
+
+# PCRE tests that are not JIT or Perl-compatible: API, errors, internals
+
+if [ $do2 = yes ] ; then
+  echo $title2 "(not UTF-$bits)"
+  for opt in "" "-s" $jitopt; do
+    $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput2 testtry
+    if [ $? = 0 ] ; then
+      $cf $testdata/testoutput2 testtry
+      if [ $? != 0 ] ; then exit 1; fi
+    else
+      echo " "
+      echo "** Test 2 requires a lot of stack. If it has crashed with a"
+      echo "** segmentation fault, it may be that you do not have enough"
+      echo "** stack available by default. Please see the 'pcrestack' man"
+      echo "** page for a discussion of PCRE's stack usage."
+      echo " "
+      exit 1
+    fi
+    if [ "$opt" = "-s" ] ; then echo "  OK with study"
+    elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+    else echo "  OK"
+    fi
+  done
+fi
+
+# Locale-specific tests, provided that either the "fr_FR" or the "french"
+# locale is available. The former is the Unix-like standard; the latter is
+# for Windows. Another possibility is "fr", which needs to be run against
+# the Windows-specific input and output files.
+
+if [ $do3 = yes ] ; then
+  locale -a | grep '^fr_FR$' >/dev/null
+  if [ $? -eq 0 ] ; then
+    locale=fr_FR
+    infile=$testdata/testinput3
+    outfile=$testdata/testoutput3
+  else
+    infile=test3input
+    outfile=test3output
+    locale -a | grep '^french$' >/dev/null
+    if [ $? -eq 0 ] ; then
+      locale=french
+      sed 's/fr_FR/french/' $testdata/testinput3 >test3input
+      sed 's/fr_FR/french/' $testdata/testoutput3 >test3output
+    else
+      locale -a | grep '^fr$' >/dev/null
+      if [ $? -eq 0 ] ; then
+        locale=fr
+        sed 's/fr_FR/fr/' $testdata/wintestinput3 >test3input
+        sed 's/fr_FR/fr/' $testdata/wintestoutput3 >test3output
+      else
+        locale=
+      fi
+    fi
+  fi
+
+  if [ "$locale" != "" ] ; then
+    echo $title3 "(using '$locale' locale)"
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $infile testtry
+      if [ $? = 0 ] ; then
+        $cf $outfile testtry
+        if [ $? != 0 ] ; then
+          echo " "
+          echo "Locale test did not run entirely successfully."
+          echo "This usually means that there is a problem with the locale"
+          echo "settings rather than a bug in PCRE."
+          break;
+        else
+          if [ "$opt" = "-s" ] ; then echo "  OK with study"
+          elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+          else echo "  OK"
+          fi
+        fi
+      else exit 1
+      fi
+    done
+  else
+    echo "Cannot test locale-specific features - none of the 'fr_FR', 'fr' or"
+    echo "'french' locales exist, or the \"locale\" command is not available"
+    echo "to check for them."
+    echo " "
+  fi
+fi
+
+# Additional tests for UTF support
+
+if [ $do4 = yes ] ; then
+  echo ${title4A}-${bits}${title4B}
+  if [ $utf -eq 0 ] ; then
+    echo "  Skipped because UTF-$bits support is not available"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput4 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput4 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+if [ $do5 = yes ] ; then
+  echo ${title5}-${bits} support
+  if [ $utf -eq 0 ] ; then
+    echo "  Skipped because UTF-$bits support is not available"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput5 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput5 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+if [ $do6 = yes ] ; then
+  echo $title6
+  if [ $utf -eq 0 -o $ucp -eq 0 ] ; then
+    echo "  Skipped because Unicode property support is not available"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput6 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput6 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Test non-Perl-compatible Unicode property support
+
+if [ $do7 = yes ] ; then
+  echo $title7
+  if [ $utf -eq 0 -o $ucp -eq 0 ] ; then
+    echo "  Skipped because Unicode property support is not available"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput7 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput7 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Tests for DFA matching support
+
+if [ $do8 = yes ] ; then
+  echo $title8
+  for opt in "" "-s"; do
+    $sim $valgrind ./pcretest -q $bmode $opt -dfa $testdata/testinput8 testtry
+    if [ $? = 0 ] ; then
+      $cf $testdata/testoutput8 testtry
+      if [ $? != 0 ] ; then exit 1; fi
+    else exit 1
+    fi
+    if [ "$opt" = "-s" ] ; then echo "  OK with study" ; else echo "  OK"; fi
+  done
+fi
+
+if [ $do9 = yes ] ; then
+  echo ${title9}-${bits}
+  if [ $utf -eq 0 ] ; then
+    echo "  Skipped because UTF-$bits support is not available"
+  else
+    for opt in "" "-s"; do
+      $sim $valgrind ./pcretest -q $bmode $opt -dfa $testdata/testinput9 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput9 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study" ; else echo "  OK"; fi
+    done
+  fi
+fi
+
+if [ $do10 = yes ] ; then
+  echo $title10
+  if [ $utf -eq 0 -o $ucp -eq 0 ] ; then
+    echo "  Skipped because Unicode property support is not available"
+  else
+    for opt in "" "-s"; do
+      $sim $valgrind ./pcretest -q $bmode $opt -dfa $testdata/testinput10 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput10 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study" ; else echo "  OK"; fi
+    done
+  fi
+fi
+
+# Test of internal offsets and code sizes. This test is run only when there
+# is Unicode property support and the link size is 2. The actual tests are
+# mostly the same as in some of the above, but in this test we inspect some
+# offsets and sizes that require a known link size. This is a doublecheck for
+# the maintainer, just in case something changes unexpectely. The output from
+# this test is not the same in 8-bit and 16-bit modes.
+
+if [ $do11 = yes ] ; then
+  echo $title11
+  if [ $link_size -ne 2 ] ; then
+    echo "  Skipped because link size is not 2"
+  elif [ $ucp -eq 0 ] ; then
+    echo "  Skipped because Unicode property support is not available"
+  else
+    for opt in "" "-s"; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput11 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput11-$bits testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study" ; else echo "  OK"; fi
+    done
+  fi
+fi
+
+# Test JIT-specific features when JIT is available
+
+if [ $do12 = yes ] ; then
+  echo $title12
+  if [ $jit -eq 0 ] ; then
+    echo "  Skipped because JIT is not available or not usable"
+  else
+    $sim $valgrind ./pcretest -q $bmode $testdata/testinput12 testtry
+    if [ $? = 0 ] ; then
+      $cf $testdata/testoutput12 testtry
+      if [ $? != 0 ] ; then exit 1; fi
+    else exit 1
+    fi
+    echo "  OK"
+  fi
+fi
+
+# Test JIT-specific features when JIT is not available
+
+if [ $do13 = yes ] ; then
+  echo $title13
+  if [ $jit -ne 0 ] ; then
+    echo "  Skipped because JIT is available"
+  else
+    $sim $valgrind ./pcretest -q $bmode $testdata/testinput13 testtry
+    if [ $? = 0 ] ; then
+      $cf $testdata/testoutput13 testtry
+      if [ $? != 0 ] ; then exit 1; fi
+    else exit 1
+    fi
+    echo "  OK"
+  fi
+fi
+
+# Tests for 8-bit-specific features
+
+if [ "$do14" = yes ] ; then
+  echo $title14
+  if [ "$bits" = "16" ] ; then
+    echo "  Skipped when running 16-bit tests"
+  else
+    cp -f $testdata/saved16 testsaved16
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput14 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput14 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Tests for 8-bit-specific features (needs UTF-8 support)
+
+if [ "$do15" = yes ] ; then
+  echo $title15
+  if [ "$bits" = "16" ] ; then
+    echo "  Skipped when running 16-bit tests"
+  elif [ $utf -eq 0 ] ; then
+    echo "  Skipped because UTF-$bits support is not available"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput15 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput15 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Tests for 8-bit-specific features (Unicode property support)
+
+if [ $do16 = yes ] ; then
+  echo $title16
+  if [ "$bits" = "16" ] ; then
+    echo "  Skipped when running 16-bit tests"
+  elif [ $ucp -eq 0 ] ; then
+    echo "  Skipped because Unicode property support is not available"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput16 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput16 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Tests for 16-bit-specific features
+
+if [ $do17 = yes ] ; then
+  echo $title17
+  if [ "$bits" = "8" ] ; then
+    echo "  Skipped when running 8-bit tests"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput17 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput17 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Tests for 16-bit-specific features (UTF-16 support)
+
+if [ $do18 = yes ] ; then
+  echo $title18
+  if [ "$bits" = "8" ] ; then
+    echo "  Skipped when running 8-bit tests"
+  elif [ $utf -eq 0 ] ; then
+    echo "  Skipped because UTF-$bits support is not available"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput18 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput18 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Tests for 16-bit-specific features (Unicode property support)
+
+if [ $do19 = yes ] ; then
+  echo $title19
+  if [ "$bits" = "8" ] ; then
+    echo "  Skipped when running 8-bit tests"
+  elif [ $ucp -eq 0 ] ; then
+    echo "  Skipped because Unicode property support is not available"
+  else
+    for opt in "" "-s" $jitopt; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput19 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput19 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      elif [ "$opt" = "-s+" ] ; then echo "  OK with JIT study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Tests for 16-bit-specific features in DFA non-UTF-16 mode
+
+if [ $do20 = yes ] ; then
+  echo $title20
+  if [ "$bits" = "8" ] ; then
+    echo "  Skipped when running 8-bit tests"
+  else
+    for opt in "" "-s"; do
+      $sim $valgrind ./pcretest -q $bmode $opt $testdata/testinput20 testtry
+      if [ $? = 0 ] ; then
+        $cf $testdata/testoutput20 testtry
+        if [ $? != 0 ] ; then exit 1; fi
+      else exit 1
+      fi
+      if [ "$opt" = "-s" ] ; then echo "  OK with study"
+      else echo "  OK"
+      fi
+    done
+  fi
+fi
+
+# Tests for reloads with 16-bit library
+
+if [ $do21 = yes ] ; then
+  echo $title21
+  if [ "$bits" = "8" ] ; then
+    echo "  Skipped when running 8-bit tests"
+  elif [ $link_size -ne 2 ] ; then
+    echo "  Skipped because link size is not 2"
+  else
+    cp -f $testdata/saved8 testsaved8
+    cp -f $testdata/saved16LE-1 testsaved16LE-1
+    cp -f $testdata/saved16BE-1 testsaved16BE-1
+    $sim $valgrind ./pcretest -q $bmode $testdata/testinput21 testtry
+    if [ $? = 0 ] ; then
+      $cf $testdata/testoutput21 testtry
+      if [ $? != 0 ] ; then exit 1; fi
+    else exit 1
+    fi
+    echo "  OK"
+  fi
+fi
+
+# Tests for reloads with 16-bit library (UTF-16 support)
+
+if [ $do22 = yes ] ; then
+  echo $title22
+  if [ "$bits" = "8" ] ; then
+    echo "  Skipped when running 8-bit tests"
+  elif [ $utf -eq 0 ] ; then
+    echo "  Skipped because UTF-$bits support is not available"
+  elif [ $link_size -ne 2 ] ; then
+    echo "  Skipped because link size is not 2"
+  else
+    cp -f $testdata/saved16LE-2 testsaved16LE-2
+    cp -f $testdata/saved16BE-2 testsaved16BE-2
+    $sim $valgrind ./pcretest -q $bmode $testdata/testinput22 testtry
+    if [ $? = 0 ] ; then
+      $cf $testdata/testoutput22 testtry
+      if [ $? != 0 ] ; then exit 1; fi
+    else exit 1
+    fi
+    echo "  OK"
+  fi
+fi
+
+# End of loop for 8-bit/16-bit tests
+done
+
+# Clean up local working files
+rm -f test3input test3output testNinput testsaved* teststderr teststdout testtry
+
+# End
diff --git a/8.31/RunTest.bat b/8.31/RunTest.bat
new file mode 100644
index 0000000..1381fb4
--- /dev/null
+++ b/8.31/RunTest.bat
@@ -0,0 +1,480 @@
+@echo off
+@rem This file must use CRLF linebreaks to function properly
+@rem and requires both pcretest and pcregrep
+@rem  This file was originally contributed by Ralf Junker, and touched up by
+@rem  Daniel Richard G. Tests 10-12 added by Philip H.
+@rem  Philip H also changed test 3 to use "wintest" files.
+@rem
+@rem  Updated by Tom Fortmann to support explicit test numbers on the command line.
+@rem  Added argument validation and added error reporting.
+@rem
+@rem  MS Windows batch file to run pcretest on testfiles with the correct
+@rem  options.
+@rem
+@rem Sheri Pierce added logic to skip feature dependent tests
+@rem tests 4 5 9 15 and 18 require utf support
+@rem tests 6 7 10 16 and 19 require ucp support
+@rem 11 requires ucp and link size 2
+@rem 12 requires presense of jit support
+@rem 13 requires absence of jit support
+@rem Sheri P also added override tests for study and jit testing
+@rem Zoltan Herczeg added libpcre16 support
+
+setlocal enabledelayedexpansion
+if [%srcdir%]==[] (
+if exist testdata\ set srcdir=.)
+if [%srcdir%]==[] (
+if exist ..\testdata\ set srcdir=..)
+if [%srcdir%]==[] (
+if exist ..\..\testdata\ set srcdir=..\..)
+if NOT exist "%srcdir%\testdata\" (
+Error: echo distribution testdata folder not found!
+call :conferror
+exit /b 1
+goto :eof
+)
+
+if "%pcretest%"=="" set pcretest=.\pcretest.exe
+
+echo source dir is %srcdir%
+echo pcretest=%pcretest%
+
+if NOT exist "%pcretest%" (
+echo Error: "%pcretest%" not found!
+echo.
+call :conferror
+exit /b 1
+)
+
+"%pcretest%" -C linksize >NUL
+set link_size=%ERRORLEVEL%
+"%pcretest%" -C pcre8 >NUL
+set support8=%ERRORLEVEL%
+"%pcretest%" -C pcre16 >NUL
+set support16=%ERRORLEVEL%
+"%pcretest%" -C utf >NUL
+set utf=%ERRORLEVEL%
+"%pcretest%" -C ucp >NUL
+set ucp=%ERRORLEVEL%
+"%pcretest%" -C jit >NUL
+set jit=%ERRORLEVEL%
+
+if %support8% EQU 1 (
+if not exist testout8 md testout8
+if not exist testoutstudy8 md testoutstudy8
+if not exist testoutjit8 md testoutjit8
+)
+
+if %support16% EQU 1 (
+if not exist testout16 md testout16
+if not exist testoutstudy16 md testoutstudy16
+if not exist testoutjit16 md testoutjit16
+)
+
+set do1=no
+set do2=no
+set do3=no
+set do4=no
+set do5=no
+set do6=no
+set do7=no
+set do8=no
+set do9=no
+set do10=no
+set do11=no
+set do12=no
+set do13=no
+set do14=no
+set do15=no
+set do16=no
+set do17=no
+set do18=no
+set do19=no
+set do20=no
+set all=yes
+
+for %%a in (%*) do (
+  set valid=no
+  for %%v in (1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20) do if %%v == %%a set valid=yes
+  if "!valid!" == "yes" (
+    set do%%a=yes
+    set all=no
+) else (
+    echo Invalid test number - %%a!
+        echo Usage %0 [ test_number ] ...
+        echo Where test_number is one or more optional test numbers 1 through 20, default is all tests.
+        exit /b 1
+)
+)
+set failed="no"
+
+if "%all%" == "yes" (
+  set do1=yes
+  set do2=yes
+  set do3=yes
+  set do4=yes
+  set do5=yes
+  set do6=yes
+  set do7=yes
+  set do8=yes
+  set do9=yes
+  set do10=yes
+  set do11=yes
+  set do12=yes
+  set do13=yes
+  set do14=yes
+  set do15=yes
+  set do16=yes
+  set do17=yes
+  set do18=yes
+  set do19=yes
+  set do20=yes
+)
+
+@echo RunTest.bat's pcretest output is written to newly created subfolders named
+@echo testout, testoutstudy and testoutjit.
+@echo.
+
+set mode=
+set bits=8
+
+:nextMode
+if "%mode%" == "" (
+  if %support8% EQU 0 goto modeSkip
+  echo.
+  echo ---- Testing 8-bit library ----
+  echo.
+) else (
+  if %support16% EQU 0 goto modeSkip
+  echo.
+  echo ---- Testing 16-bit library ----
+  echo.
+)
+if "%do1%" == "yes" call :do1
+if "%do2%" == "yes" call :do2
+if "%do3%" == "yes" call :do3
+if "%do4%" == "yes" call :do4
+if "%do5%" == "yes" call :do5
+if "%do6%" == "yes" call :do6
+if "%do7%" == "yes" call :do7
+if "%do8%" == "yes" call :do8
+if "%do9%" == "yes" call :do9
+if "%do10%" == "yes" call :do10
+if "%do11%" == "yes" call :do11
+if "%do12%" == "yes" call :do12
+if "%do13%" == "yes" call :do13
+if "%do14%" == "yes" call :do14
+if "%do15%" == "yes" call :do15
+if "%do16%" == "yes" call :do16
+if "%do17%" == "yes" call :do17
+if "%do18%" == "yes" call :do18
+if "%do19%" == "yes" call :do19
+if "%do20%" == "yes" call :do20
+:modeSkip
+if "%mode%" == "" (
+  set mode=-16
+  set bits=16
+  goto nextMode
+)
+
+if %failed% == "yes" (
+echo In above output, one or more of the various tests failed!
+exit /b 1
+)
+echo All OK
+goto :eof
+
+:runsub
+@rem Function to execute pcretest and compare the output
+@rem Arguments are as follows:
+@rem
+@rem       1 = test number
+@rem       2 = outputdir
+@rem       3 = test name use double quotes
+@rem   4 - 9 = pcretest options
+
+if [%1] == [] (
+  echo Missing test number argument!
+  exit /b 1
+)
+
+if [%2] == [] (
+  echo Missing outputdir!
+  exit /b 1
+)
+
+if [%3] == [] (
+  echo Missing test name argument!
+  exit /b 1
+)
+
+set testinput=testinput%1
+set testoutput=testoutput%1
+if exist %srcdir%\testdata\win%testinput% (
+  set testinput=wintestinput%1
+  set testoutput=wintestoutput%1
+)
+
+echo Test %1: %3
+"%pcretest%" %mode% %4 %5 %6 %7 %8 %9 "%srcdir%\testdata\%testinput%">%2%bits%\%testoutput%
+if errorlevel 1 (
+  echo.          failed executing command-line:
+  echo.            "%pcretest%" %mode% %4 %5 %6 %7 %8 %9 "%srcdir%\testdata\%testinput%"^>%2%bits%\%testoutput%
+  set failed="yes"
+  goto :eof
+)
+
+if [%1]==[11] (
+  fc /n "%srcdir%\testdata\%testoutput%-%bits%" "%2%bits%\%testoutput%">NUL
+) else (
+  fc /n "%srcdir%\testdata\%testoutput%" "%2%bits%\%testoutput%">NUL
+)
+if errorlevel 1 (
+  echo.          failed comparison: fc /n "%srcdir%\testdata\%testoutput%" "%2%bits%\%testoutput%"
+  if [%1]==[2] (
+    echo.
+    echo ** Test 2 requires a lot of stack. PCRE can be configured to
+    echo ** use heap for recursion. Otherwise, to pass Test 2
+    echo ** you generally need to allocate 8 mb stack to PCRE.
+    echo ** See the 'pcrestack' page for a discussion of PCRE's
+    echo ** stack usage.
+    echo.
+)
+  if [%1]==[3] (
+    echo.
+    echo ** Test 3 failure usually means french locale is not
+    echo ** available on the system, rather than a bug or problem with PCRE.
+    echo.
+    goto :eof
+)
+
+  set failed="yes"
+  goto :eof
+)
+
+echo.          Passed.
+goto :eof
+
+:do1
+call :runsub 1 testout "Main functionality - Compatible with Perl 5.8 and above" -q
+call :runsub 1 testoutstudy "Test with Study Override" -q -s
+if %jit% EQU 1 call :runsub 1 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do2
+  call :runsub 2 testout "API, errors, internals, and non-Perl stuff (not UTF-8)" -q
+  call :runsub 2 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 2 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do3
+  call :runsub 3 testout "Locale-specific features" -q
+  call :runsub 3 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 3 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do4
+  if %utf% EQU 0 (
+  echo Test 4 Skipped due to absence of UTF-%bits% support.
+  goto :eof
+)
+  call :runsub 4 testout "UTF-%bits% support - Compatible with Perl 5.8 and above" -q
+  call :runsub 4 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 4 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do5
+  if %utf% EQU 0 (
+  echo Test 5 Skipped due to absence of UTF-%bits% support.
+  goto :eof
+)
+  call :runsub 5 testout "API, internals, and non-Perl stuff for UTF-%bits% support" -q
+  call :runsub 5 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 5 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do6
+if %ucp% EQU 0 (
+  echo Test 6 Skipped due to absence of Unicode property support.
+  goto :eof
+)
+  call :runsub 6 testout "Unicode property support (Compatible with Perl >= 5.10)" -q
+  call :runsub 6 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 6 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do7
+if %ucp% EQU 0 (
+  echo Test 7 Skipped due to absence of Unicode property support.
+  goto :eof
+)
+  call :runsub 7 testout "API, internals, and non-Perl stuff for Unicode property support" -q
+  call :runsub 7 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 7 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do8
+  call :runsub 8 testout "DFA matching main functionality" -q -dfa
+  call :runsub 8 testoutstudy "Test with Study Override" -q -dfa -s
+goto :eof
+
+:do9
+  if %utf% EQU 0 (
+  echo Test 9 Skipped due to absence of UTF-%bits% support.
+  goto :eof
+)
+  call :runsub 9 testout "DFA matching with UTF-%bits%" -q -dfa
+  call :runsub 9 testoutstudy "Test with Study Override" -q -dfa -s
+  goto :eof
+
+:do10
+  if %ucp% EQU 0 (
+  echo Test 10 Skipped due to absence of Unicode property support.
+  goto :eof
+)
+  call :runsub 10 testout "DFA matching with Unicode properties" -q -dfa
+  call :runsub 10 testoutstudy "Test with Study Override" -q -dfa -s
+goto :eof
+
+:do11
+  if NOT %link_size% EQU 2 (
+  echo Test 11 Skipped because link size is not 2.
+  goto :eof
+)
+  if %ucp% EQU 0 (
+  echo Test 11 Skipped due to absence of Unicode property support.
+  goto :eof
+)
+  call :runsub 11 testout "Internal offsets and code size tests" -q
+  call :runsub 11 testoutstudy "Test with Study Override" -q -s
+goto :eof
+
+:do12
+if %jit% EQU 0 (
+  echo Test 12 Skipped due to absence of JIT support.
+  goto :eof
+)
+  call :runsub 12 testout "JIT-specific features - have JIT" -q
+goto :eof
+
+:do13
+  if %jit% EQU 1 (
+  echo Test 13 Skipped due to presence of JIT support.
+  goto :eof
+)
+  call :runsub 13 testout "JIT-specific features - no JIT" -q
+goto :eof
+
+:do14
+  if NOT %bits% EQU 8 (
+  echo Test 14 Skipped when running 16-bit tests.
+  goto :eof
+)
+  copy /Y "%srcdir%\testdata\saved16" testsaved16
+  call :runsub 14 testout "Specials for the basic 8-bit library" -q
+  call :runsub 14 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 14 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do15
+  if NOT %bits% EQU 8 (
+  echo Test 15 Skipped when running 16-bit tests.
+  goto :eof
+)
+  if %utf% EQU 0 (
+  echo Test 15 Skipped due to absence of UTF-8 support.
+  goto :eof
+)
+  call :runsub 15 testout "Specials for the 8-bit library with UTF-8 support" -q
+  call :runsub 15 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 15 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do16
+  if NOT %bits% EQU 8 (
+  echo Test 16 Skipped when running 16-bit tests.
+  goto :eof
+)
+  if %ucp% EQU 0 (
+  echo Test 16 Skipped due to absence of Unicode property support.
+  goto :eof
+)
+  call :runsub 16 testout "Specials for the 8-bit library with Unicode propery support" -q
+  call :runsub 16 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 16 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do17
+  if NOT %bits% EQU 16 (
+  echo Test 17 Skipped when running 8-bit tests.
+  goto :eof
+)
+  copy /Y "%srcdir%\testdata\saved8" testsaved8
+  copy /Y "%srcdir%\testdata\saved16LE-1" testsaved16LE-1
+  copy /Y "%srcdir%\testdata\saved16BE-1" testsaved16BE-1
+  call :runsub 17 testout "Specials for the basic 8-bit library" -q
+  call :runsub 17 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 17 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do18
+  if NOT %bits% EQU 16 (
+  echo Test 18 Skipped when running 8-bit tests.
+  goto :eof
+)
+  if %utf% EQU 0 (
+  echo Test 18 Skipped due to absence of UTF-8 support.
+  goto :eof
+)
+  copy /Y "%srcdir%\testdata\saved16LE-2" testsaved16LE-2
+  copy /Y "%srcdir%\testdata\saved16BE-2" testsaved16BE-2
+  call :runsub 18 testout "Specials for the basic 8-bit library" -q
+  call :runsub 18 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 18 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do19
+  if NOT %bits% EQU 16 (
+  echo Test 19 Skipped when running 8-bit tests.
+  goto :eof
+)
+  if %ucp% EQU 0 (
+  echo Test 19 Skipped due to absence of Unicode property support.
+  goto :eof
+)
+  call :runsub 19 testout "Specials for the basic 8-bit library" -q
+  call :runsub 19 testoutstudy "Test with Study Override" -q -s
+  if %jit% EQU 1 call :runsub 19 testoutjit "Test with JIT Override" -q -s+
+goto :eof
+
+:do20
+  if NOT %bits% EQU 16 (
+  echo Test 20 Skipped when running 8-bit tests.
+  goto :eof
+)
+  call :runsub 20 testout "DFA specials for the basic 16-bit library" -q
+  call :runsub 20 testoutstudy "Test with Study Override" -q -s
+goto :eof
+
+:conferror
+@echo.
+@echo Either your build is incomplete or you have a configuration error.
+@echo.
+@echo If configured with cmake and executed via "make test" or the MSVC "RUN_TESTS"
+@echo project, pcre_test.bat defines variables and automatically calls RunTest.bat.
+@echo For manual testing of all available features, after configuring with cmake
+@echo and building, you can run the built pcre_test.bat. For best results with
+@echo cmake builds and tests avoid directories with full path names that include
+@echo spaces for source or build.
+@echo.
+@echo Otherwise, if the build dir is in a subdir of the source dir, testdata needed
+@echo for input and verification should be found automatically when (from the
+@echo location of the the built exes) you call RunTest.bat. By default RunTest.bat
+@echo runs all tests compatible with the linked pcre library but it can be given
+@echo a test number as an argument.
+@echo.
+@echo If the build dir is not under the source dir you can either copy your exes
+@echo to the source folder or copy RunTest.bat and the testdata folder to the
+@echo location of your built exes and then run RunTest.bat.
+@echo.
+goto :eof
diff --git a/8.31/aclocal.m4 b/8.31/aclocal.m4
new file mode 100644
index 0000000..5ed6c5f
--- /dev/null
+++ b/8.31/aclocal.m4
@@ -0,0 +1,9418 @@
+# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+m4_ifndef([AC_AUTOCONF_VERSION],
+  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
+m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.68],,
+[m4_warning([this file was generated for autoconf 2.68.
+You have another version of autoconf.  It may work, but is not guaranteed to.
+If you have problems, you may need to regenerate the build system entirely.
+To do so, use the procedure documented by the package, typically `autoreconf'.])])
+
+# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
+#
+#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+#                 2006, 2007, 2008, 2009, 2010 Free Software Foundation,
+#                 Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+m4_define([_LT_COPYING], [dnl
+#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+#                 2006, 2007, 2008, 2009, 2010 Free Software Foundation,
+#                 Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+#   This file is part of GNU Libtool.
+#
+# GNU Libtool is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
+# obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+])
+
+# serial 57 LT_INIT
+
+
+# LT_PREREQ(VERSION)
+# ------------------
+# Complain and exit if this libtool version is less that VERSION.
+m4_defun([LT_PREREQ],
+[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1,
+       [m4_default([$3],
+		   [m4_fatal([Libtool version $1 or higher is required],
+		             63)])],
+       [$2])])
+
+
+# _LT_CHECK_BUILDDIR
+# ------------------
+# Complain if the absolute build directory name contains unusual characters
+m4_defun([_LT_CHECK_BUILDDIR],
+[case `pwd` in
+  *\ * | *\	*)
+    AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;;
+esac
+])
+
+
+# LT_INIT([OPTIONS])
+# ------------------
+AC_DEFUN([LT_INIT],
+[AC_PREREQ([2.58])dnl We use AC_INCLUDES_DEFAULT
+AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+AC_BEFORE([$0], [LT_LANG])dnl
+AC_BEFORE([$0], [LT_OUTPUT])dnl
+AC_BEFORE([$0], [LTDL_INIT])dnl
+m4_require([_LT_CHECK_BUILDDIR])dnl
+
+dnl Autoconf doesn't catch unexpanded LT_ macros by default:
+m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl
+m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl
+dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4
+dnl unless we require an AC_DEFUNed macro:
+AC_REQUIRE([LTOPTIONS_VERSION])dnl
+AC_REQUIRE([LTSUGAR_VERSION])dnl
+AC_REQUIRE([LTVERSION_VERSION])dnl
+AC_REQUIRE([LTOBSOLETE_VERSION])dnl
+m4_require([_LT_PROG_LTMAIN])dnl
+
+_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}])
+
+dnl Parse OPTIONS
+_LT_SET_OPTIONS([$0], [$1])
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS="$ltmain"
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+AC_SUBST(LIBTOOL)dnl
+
+_LT_SETUP
+
+# Only expand once:
+m4_define([LT_INIT])
+])# LT_INIT
+
+# Old names:
+AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT])
+AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PROG_LIBTOOL], [])
+dnl AC_DEFUN([AM_PROG_LIBTOOL], [])
+
+
+# _LT_CC_BASENAME(CC)
+# -------------------
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+m4_defun([_LT_CC_BASENAME],
+[for cc_temp in $1""; do
+  case $cc_temp in
+    compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
+    distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+])
+
+
+# _LT_FILEUTILS_DEFAULTS
+# ----------------------
+# It is okay to use these file commands and assume they have been set
+# sensibly after `m4_require([_LT_FILEUTILS_DEFAULTS])'.
+m4_defun([_LT_FILEUTILS_DEFAULTS],
+[: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+])# _LT_FILEUTILS_DEFAULTS
+
+
+# _LT_SETUP
+# ---------
+m4_defun([_LT_SETUP],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+
+_LT_DECL([], [host_alias], [0], [The host system])dnl
+_LT_DECL([], [host], [0])dnl
+_LT_DECL([], [host_os], [0])dnl
+dnl
+_LT_DECL([], [build_alias], [0], [The build system])dnl
+_LT_DECL([], [build], [0])dnl
+_LT_DECL([], [build_os], [0])dnl
+dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+dnl
+AC_REQUIRE([AC_PROG_LN_S])dnl
+test -z "$LN_S" && LN_S="ln -s"
+_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl
+dnl
+AC_REQUIRE([LT_CMD_MAX_LEN])dnl
+_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl
+_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl
+dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl
+m4_require([_LT_CMD_RELOAD])dnl
+m4_require([_LT_CHECK_MAGIC_METHOD])dnl
+m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl
+m4_require([_LT_CMD_OLD_ARCHIVE])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_WITH_SYSROOT])dnl
+
+_LT_CONFIG_LIBTOOL_INIT([
+# See if we are running on zsh, and set the options which allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+])
+if test -n "${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+
+_LT_CHECK_OBJDIR
+
+m4_require([_LT_TAG_COMPILER])dnl
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "X${COLLECT_NAMES+set}" != Xset; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a `.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld="$lt_cv_prog_gnu_ld"
+
+old_CC="$CC"
+old_CFLAGS="$CFLAGS"
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+_LT_CC_BASENAME([$compiler])
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    _LT_PATH_MAGIC
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+LT_SUPPORTED_TAG([CC])
+_LT_LANG_C_CONFIG
+_LT_LANG_DEFAULT_CONFIG
+_LT_CONFIG_COMMANDS
+])# _LT_SETUP
+
+
+# _LT_PREPARE_SED_QUOTE_VARS
+# --------------------------
+# Define a few sed substitution that help us do robust quoting.
+m4_defun([_LT_PREPARE_SED_QUOTE_VARS],
+[# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\([["`$\\]]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\([["`\\]]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+])
+
+# _LT_PROG_LTMAIN
+# ---------------
+# Note that this code is called both from `configure', and `config.status'
+# now that we use AC_CONFIG_COMMANDS to generate libtool.  Notably,
+# `config.status' has no value for ac_aux_dir unless we are using Automake,
+# so we pass a copy along to make sure it has a sensible value anyway.
+m4_defun([_LT_PROG_LTMAIN],
+[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl
+_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir'])
+ltmain="$ac_aux_dir/ltmain.sh"
+])# _LT_PROG_LTMAIN
+
+
+
+# So that we can recreate a full libtool script including additional
+# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS
+# in macros and then make a single call at the end using the `libtool'
+# label.
+
+
+# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS])
+# ----------------------------------------
+# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL_INIT],
+[m4_ifval([$1],
+          [m4_append([_LT_OUTPUT_LIBTOOL_INIT],
+                     [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_INIT])
+
+
+# _LT_CONFIG_LIBTOOL([COMMANDS])
+# ------------------------------
+# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL],
+[m4_ifval([$1],
+          [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS],
+                     [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS])
+
+
+# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS])
+# -----------------------------------------------------
+m4_defun([_LT_CONFIG_SAVE_COMMANDS],
+[_LT_CONFIG_LIBTOOL([$1])
+_LT_CONFIG_LIBTOOL_INIT([$2])
+])
+
+
+# _LT_FORMAT_COMMENT([COMMENT])
+# -----------------------------
+# Add leading comment marks to the start of each line, and a trailing
+# full-stop to the whole comment if one is not present already.
+m4_define([_LT_FORMAT_COMMENT],
+[m4_ifval([$1], [
+m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])],
+              [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.])
+)])
+
+
+
+
+
+# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?])
+# -------------------------------------------------------------------
+# CONFIGNAME is the name given to the value in the libtool script.
+# VARNAME is the (base) name used in the configure script.
+# VALUE may be 0, 1 or 2 for a computed quote escaped value based on
+# VARNAME.  Any other value will be used directly.
+m4_define([_LT_DECL],
+[lt_if_append_uniq([lt_decl_varnames], [$2], [, ],
+    [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name],
+	[m4_ifval([$1], [$1], [$2])])
+    lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3])
+    m4_ifval([$4],
+	[lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])])
+    lt_dict_add_subkey([lt_decl_dict], [$2],
+	[tagged?], [m4_ifval([$5], [yes], [no])])])
+])
+
+
+# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION])
+# --------------------------------------------------------
+m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])])
+
+
+# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_tag_varnames],
+[_lt_decl_filter([tagged?], [yes], $@)])
+
+
+# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..])
+# ---------------------------------------------------------
+m4_define([_lt_decl_filter],
+[m4_case([$#],
+  [0], [m4_fatal([$0: too few arguments: $#])],
+  [1], [m4_fatal([$0: too few arguments: $#: $1])],
+  [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)],
+  [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)],
+  [lt_dict_filter([lt_decl_dict], $@)])[]dnl
+])
+
+
+# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...])
+# --------------------------------------------------
+m4_define([lt_decl_quote_varnames],
+[_lt_decl_filter([value], [1], $@)])
+
+
+# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_dquote_varnames],
+[_lt_decl_filter([value], [2], $@)])
+
+
+# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_varnames_tagged],
+[m4_assert([$# <= 2])dnl
+_$0(m4_quote(m4_default([$1], [[, ]])),
+    m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]),
+    m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))])
+m4_define([_lt_decl_varnames_tagged],
+[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])])
+
+
+# lt_decl_all_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_all_varnames],
+[_$0(m4_quote(m4_default([$1], [[, ]])),
+     m4_if([$2], [],
+	   m4_quote(lt_decl_varnames),
+	m4_quote(m4_shift($@))))[]dnl
+])
+m4_define([_lt_decl_all_varnames],
+[lt_join($@, lt_decl_varnames_tagged([$1],
+			lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl
+])
+
+
+# _LT_CONFIG_STATUS_DECLARE([VARNAME])
+# ------------------------------------
+# Quote a variable value, and forward it to `config.status' so that its
+# declaration there will have the same value as in `configure'.  VARNAME
+# must have a single quote delimited value for this to work.
+m4_define([_LT_CONFIG_STATUS_DECLARE],
+[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`'])
+
+
+# _LT_CONFIG_STATUS_DECLARATIONS
+# ------------------------------
+# We delimit libtool config variables with single quotes, so when
+# we write them to config.status, we have to be sure to quote all
+# embedded single quotes properly.  In configure, this macro expands
+# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
+#
+#    <var>='`$ECHO "$<var>" | $SED "$delay_single_quote_subst"`'
+m4_defun([_LT_CONFIG_STATUS_DECLARATIONS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames),
+    [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAGS
+# ----------------
+# Output comment and list of tags supported by the script
+m4_defun([_LT_LIBTOOL_TAGS],
+[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
+available_tags="_LT_TAGS"dnl
+])
+
+
+# _LT_LIBTOOL_DECLARE(VARNAME, [TAG])
+# -----------------------------------
+# Extract the dictionary values for VARNAME (optionally with TAG) and
+# expand to a commented shell variable setting:
+#
+#    # Some comment about what VAR is for.
+#    visible_name=$lt_internal_name
+m4_define([_LT_LIBTOOL_DECLARE],
+[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1],
+					   [description])))[]dnl
+m4_pushdef([_libtool_name],
+    m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl
+m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])),
+    [0], [_libtool_name=[$]$1],
+    [1], [_libtool_name=$lt_[]$1],
+    [2], [_libtool_name=$lt_[]$1],
+    [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl
+m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl
+])
+
+
+# _LT_LIBTOOL_CONFIG_VARS
+# -----------------------
+# Produce commented declarations of non-tagged libtool config variables
+# suitable for insertion in the LIBTOOL CONFIG section of the `libtool'
+# script.  Tagged libtool config variables (even for the LIBTOOL CONFIG
+# section) are produced by _LT_LIBTOOL_TAG_VARS.
+m4_defun([_LT_LIBTOOL_CONFIG_VARS],
+[m4_foreach([_lt_var],
+    m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
+    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAG_VARS(TAG)
+# -------------------------
+m4_define([_LT_LIBTOOL_TAG_VARS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
+    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
+
+
+# _LT_TAGVAR(VARNAME, [TAGNAME])
+# ------------------------------
+m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
+
+
+# _LT_CONFIG_COMMANDS
+# -------------------
+# Send accumulated output to $CONFIG_STATUS.  Thanks to the lists of
+# variables for single and double quote escaping we saved from calls
+# to _LT_DECL, we can put quote escaped variables declarations
+# into `config.status', and then the shell code to quote escape them in
+# for loops in `config.status'.  Finally, any additional code accumulated
+# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
+m4_defun([_LT_CONFIG_COMMANDS],
+[AC_PROVIDE_IFELSE([LT_OUTPUT],
+	dnl If the libtool generation code has been placed in $CONFIG_LT,
+	dnl instead of duplicating it all over again into config.status,
+	dnl then we will have config.status run $CONFIG_LT later, so it
+	dnl needs to know what name is stored there:
+        [AC_CONFIG_COMMANDS([libtool],
+            [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
+    dnl If the libtool generation code is destined for config.status,
+    dnl expand the accumulated commands and init code now:
+    [AC_CONFIG_COMMANDS([libtool],
+        [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
+])#_LT_CONFIG_COMMANDS
+
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
+[
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+_LT_CONFIG_STATUS_DECLARATIONS
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$[]1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_quote_varnames); do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[[\\\\\\\`\\"\\\$]]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_dquote_varnames); do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[[\\\\\\\`\\"\\\$]]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+_LT_OUTPUT_LIBTOOL_INIT
+])
+
+# _LT_GENERATED_FILE_INIT(FILE, [COMMENT])
+# ------------------------------------
+# Generate a child script FILE with all initialization necessary to
+# reuse the environment learned by the parent script, and make the
+# file executable.  If COMMENT is supplied, it is inserted after the
+# `#!' sequence but before initialization text begins.  After this
+# macro, additional text can be appended to FILE to form the body of
+# the child script.  The macro ends with non-zero status if the
+# file could not be fully written (such as if the disk is full).
+m4_ifdef([AS_INIT_GENERATED],
+[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])],
+[m4_defun([_LT_GENERATED_FILE_INIT],
+[m4_require([AS_PREPARE])]dnl
+[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl
+[lt_write_fail=0
+cat >$1 <<_ASEOF || lt_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+$2
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$1 <<\_ASEOF || lt_write_fail=1
+AS_SHELL_SANITIZE
+_AS_PREPARE
+exec AS_MESSAGE_FD>&1
+_ASEOF
+test $lt_write_fail = 0 && chmod +x $1[]dnl
+m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT
+
+# LT_OUTPUT
+# ---------
+# This macro allows early generation of the libtool script (before
+# AC_OUTPUT is called), incase it is used in configure for compilation
+# tests.
+AC_DEFUN([LT_OUTPUT],
+[: ${CONFIG_LT=./config.lt}
+AC_MSG_NOTICE([creating $CONFIG_LT])
+_LT_GENERATED_FILE_INIT(["$CONFIG_LT"],
+[# Run this file to recreate a libtool stub with the current configuration.])
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+lt_cl_silent=false
+exec AS_MESSAGE_LOG_FD>>config.log
+{
+  echo
+  AS_BOX([Running $as_me.])
+} >&AS_MESSAGE_LOG_FD
+
+lt_cl_help="\
+\`$as_me' creates a local libtool stub from the current configuration,
+for use in further configure time tests before the real libtool is
+generated.
+
+Usage: $[0] [[OPTIONS]]
+
+  -h, --help      print this help, then exit
+  -V, --version   print version number, then exit
+  -q, --quiet     do not print progress messages
+  -d, --debug     don't remove temporary files
+
+Report bugs to <bug-libtool@gnu.org>."
+
+lt_cl_version="\
+m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
+m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
+configured by $[0], generated by m4_PACKAGE_STRING.
+
+Copyright (C) 2010 Free Software Foundation, Inc.
+This config.lt script is free software; the Free Software Foundation
+gives unlimited permision to copy, distribute and modify it."
+
+while test $[#] != 0
+do
+  case $[1] in
+    --version | --v* | -V )
+      echo "$lt_cl_version"; exit 0 ;;
+    --help | --h* | -h )
+      echo "$lt_cl_help"; exit 0 ;;
+    --debug | --d* | -d )
+      debug=: ;;
+    --quiet | --q* | --silent | --s* | -q )
+      lt_cl_silent=: ;;
+
+    -*) AC_MSG_ERROR([unrecognized option: $[1]
+Try \`$[0] --help' for more information.]) ;;
+
+    *) AC_MSG_ERROR([unrecognized argument: $[1]
+Try \`$[0] --help' for more information.]) ;;
+  esac
+  shift
+done
+
+if $lt_cl_silent; then
+  exec AS_MESSAGE_FD>/dev/null
+fi
+_LTEOF
+
+cat >>"$CONFIG_LT" <<_LTEOF
+_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
+_LTEOF
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+AC_MSG_NOTICE([creating $ofile])
+_LT_OUTPUT_LIBTOOL_COMMANDS
+AS_EXIT(0)
+_LTEOF
+chmod +x "$CONFIG_LT"
+
+# configure is writing to config.log, but config.lt does its own redirection,
+# appending to config.log, which fails on DOS, as config.log is still kept
+# open by configure.  Here we exec the FD to /dev/null, effectively closing
+# config.log, so it can be properly (re)opened and appended to by config.lt.
+lt_cl_success=:
+test "$silent" = yes &&
+  lt_config_lt_args="$lt_config_lt_args --quiet"
+exec AS_MESSAGE_LOG_FD>/dev/null
+$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
+exec AS_MESSAGE_LOG_FD>>config.log
+$lt_cl_success || AS_EXIT(1)
+])# LT_OUTPUT
+
+
+# _LT_CONFIG(TAG)
+# ---------------
+# If TAG is the built-in tag, create an initial libtool script with a
+# default configuration from the untagged config vars.  Otherwise add code
+# to config.status for appending the configuration named by TAG from the
+# matching tagged config vars.
+m4_defun([_LT_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_CONFIG_SAVE_COMMANDS([
+  m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
+  m4_if(_LT_TAG, [C], [
+    # See if we are running on zsh, and set the options which allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}" ; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile="${ofile}T"
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+
+# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+#
+_LT_COPYING
+_LT_LIBTOOL_TAGS
+
+# ### BEGIN LIBTOOL CONFIG
+_LT_LIBTOOL_CONFIG_VARS
+_LT_LIBTOOL_TAG_VARS
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "X${COLLECT_NAMES+set}" != Xset; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+  _LT_PROG_LTMAIN
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+  _LT_PROG_REPLACE_SHELLFNS
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+],
+[cat <<_LT_EOF >> "$ofile"
+
+dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
+dnl in a comment (ie after a #).
+# ### BEGIN LIBTOOL TAG CONFIG: $1
+_LT_LIBTOOL_TAG_VARS(_LT_TAG)
+# ### END LIBTOOL TAG CONFIG: $1
+_LT_EOF
+])dnl /m4_if
+],
+[m4_if([$1], [], [
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    TIMESTAMP='$TIMESTAMP'
+    RM='$RM'
+    ofile='$ofile'], [])
+])dnl /_LT_CONFIG_SAVE_COMMANDS
+])# _LT_CONFIG
+
+
+# LT_SUPPORTED_TAG(TAG)
+# ---------------------
+# Trace this macro to discover what tags are supported by the libtool
+# --tag option, using:
+#    autoconf --trace 'LT_SUPPORTED_TAG:$1'
+AC_DEFUN([LT_SUPPORTED_TAG], [])
+
+
+# C support is built-in for now
+m4_define([_LT_LANG_C_enabled], [])
+m4_define([_LT_TAGS], [])
+
+
+# LT_LANG(LANG)
+# -------------
+# Enable libtool support for the given language if not already enabled.
+AC_DEFUN([LT_LANG],
+[AC_BEFORE([$0], [LT_OUTPUT])dnl
+m4_case([$1],
+  [C],			[_LT_LANG(C)],
+  [C++],		[_LT_LANG(CXX)],
+  [Java],		[_LT_LANG(GCJ)],
+  [Fortran 77],		[_LT_LANG(F77)],
+  [Fortran],		[_LT_LANG(FC)],
+  [Windows Resource],	[_LT_LANG(RC)],
+  [m4_ifdef([_LT_LANG_]$1[_CONFIG],
+    [_LT_LANG($1)],
+    [m4_fatal([$0: unsupported language: "$1"])])])dnl
+])# LT_LANG
+
+
+# _LT_LANG(LANGNAME)
+# ------------------
+m4_defun([_LT_LANG],
+[m4_ifdef([_LT_LANG_]$1[_enabled], [],
+  [LT_SUPPORTED_TAG([$1])dnl
+  m4_append([_LT_TAGS], [$1 ])dnl
+  m4_define([_LT_LANG_]$1[_enabled], [])dnl
+  _LT_LANG_$1_CONFIG($1)])dnl
+])# _LT_LANG
+
+
+# _LT_LANG_DEFAULT_CONFIG
+# -----------------------
+m4_defun([_LT_LANG_DEFAULT_CONFIG],
+[AC_PROVIDE_IFELSE([AC_PROG_CXX],
+  [LT_LANG(CXX)],
+  [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_F77],
+  [LT_LANG(F77)],
+  [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_FC],
+  [LT_LANG(FC)],
+  [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
+
+dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
+dnl pulling things in needlessly.
+AC_PROVIDE_IFELSE([AC_PROG_GCJ],
+  [LT_LANG(GCJ)],
+  [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
+    [LT_LANG(GCJ)],
+    [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
+      [LT_LANG(GCJ)],
+      [m4_ifdef([AC_PROG_GCJ],
+	[m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
+       m4_ifdef([A][M_PROG_GCJ],
+	[m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
+       m4_ifdef([LT_PROG_GCJ],
+	[m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
+
+AC_PROVIDE_IFELSE([LT_PROG_RC],
+  [LT_LANG(RC)],
+  [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
+])# _LT_LANG_DEFAULT_CONFIG
+
+# Obsolete macros:
+AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
+AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
+AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
+AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
+AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
+dnl AC_DEFUN([AC_LIBTOOL_F77], [])
+dnl AC_DEFUN([AC_LIBTOOL_FC], [])
+dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
+dnl AC_DEFUN([AC_LIBTOOL_RC], [])
+
+
+# _LT_TAG_COMPILER
+# ----------------
+m4_defun([_LT_TAG_COMPILER],
+[AC_REQUIRE([AC_PROG_CC])dnl
+
+_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
+_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
+_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
+_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+])# _LT_TAG_COMPILER
+
+
+# _LT_COMPILER_BOILERPLATE
+# ------------------------
+# Check for compiler boilerplate output or warnings with
+# the simple compiler test code.
+m4_defun([_LT_COMPILER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+])# _LT_COMPILER_BOILERPLATE
+
+
+# _LT_LINKER_BOILERPLATE
+# ----------------------
+# Check for linker boilerplate output or warnings with
+# the simple link test code.
+m4_defun([_LT_LINKER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+])# _LT_LINKER_BOILERPLATE
+
+# _LT_REQUIRED_DARWIN_CHECKS
+# -------------------------
+m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
+  case $host_os in
+    rhapsody* | darwin*)
+    AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
+    AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
+    AC_CHECK_TOOL([LIPO], [lipo], [:])
+    AC_CHECK_TOOL([OTOOL], [otool], [:])
+    AC_CHECK_TOOL([OTOOL64], [otool64], [:])
+    _LT_DECL([], [DSYMUTIL], [1],
+      [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
+    _LT_DECL([], [NMEDIT], [1],
+      [Tool to change global to local symbols on Mac OS X])
+    _LT_DECL([], [LIPO], [1],
+      [Tool to manipulate fat objects and archives on Mac OS X])
+    _LT_DECL([], [OTOOL], [1],
+      [ldd/readelf like tool for Mach-O binaries on Mac OS X])
+    _LT_DECL([], [OTOOL64], [1],
+      [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
+
+    AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
+      [lt_cv_apple_cc_single_mod=no
+      if test -z "${LT_MULTI_MODULE}"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi])
+    AC_CACHE_CHECK([for -exported_symbols_list linker flag],
+      [lt_cv_ld_exported_symbols_list],
+      [lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+	[lt_cv_ld_exported_symbols_list=yes],
+	[lt_cv_ld_exported_symbols_list=no])
+	LDFLAGS="$save_LDFLAGS"
+    ])
+    AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
+      [lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD
+      echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
+      $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
+      echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
+      $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -f conftest && test ! -s conftest.err && test $_lt_result = 0 && $GREP forced_load conftest 2>&1 >/dev/null; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&AS_MESSAGE_LOG_FD
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+    ])
+    case $host_os in
+    rhapsody* | darwin1.[[012]])
+      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+    darwin*) # darwin 5.x on
+      # if running on 10.5 or later, the deployment target defaults
+      # to the OS version, if on x86, and 10.4, the deployment
+      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
+	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	10.[[012]]*)
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	10.*)
+	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test "$lt_cv_apple_cc_single_mod" = "yes"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
+      _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    fi
+    if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+])
+
+
+# _LT_DARWIN_LINKER_FEATURES
+# --------------------------
+# Checks for linker and compiler features on darwin
+m4_defun([_LT_DARWIN_LINKER_FEATURES],
+[
+  m4_require([_LT_REQUIRED_DARWIN_CHECKS])
+  _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+  _LT_TAGVAR(hardcode_direct, $1)=no
+  _LT_TAGVAR(hardcode_automatic, $1)=yes
+  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  if test "$lt_cv_ld_force_load" = "yes"; then
+    _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+  else
+    _LT_TAGVAR(whole_archive_flag_spec, $1)=''
+  fi
+  _LT_TAGVAR(link_all_deplibs, $1)=yes
+  _LT_TAGVAR(allow_undefined_flag, $1)="$_lt_dar_allow_undefined"
+  case $cc_basename in
+     ifort*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test "$_lt_dar_can_shared" = "yes"; then
+    output_verbose_link_cmd=func_echo_all
+    _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
+    _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
+    _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
+    _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+    m4_if([$1], [CXX],
+[   if test "$lt_cv_apple_cc_single_mod" != "yes"; then
+      _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
+      _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
+    fi
+],[])
+  else
+  _LT_TAGVAR(ld_shlibs, $1)=no
+  fi
+])
+
+# _LT_SYS_MODULE_PATH_AIX([TAGNAME])
+# ----------------------------------
+# Links a minimal program and checks the executable
+# for the system default hardcoded library path. In most cases,
+# this is /usr/lib:/lib, but when the MPI compilers are used
+# the location of the communication and MPI libs are included too.
+# If we don't find anything, use the default library path according
+# to the aix ld manual.
+# Store the results from the different compilers for each TAGNAME.
+# Allow to override them for all tags through lt_cv_aix_libpath.
+m4_defun([_LT_SYS_MODULE_PATH_AIX],
+[m4_require([_LT_DECL_SED])dnl
+if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])],
+  [AC_LINK_IFELSE([AC_LANG_PROGRAM],[
+  lt_aix_libpath_sed='[
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }]'
+  _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+    _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi],[])
+  if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+    _LT_TAGVAR([lt_cv_aix_libpath_], [$1])="/usr/lib:/lib"
+  fi
+  ])
+  aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])
+fi
+])# _LT_SYS_MODULE_PATH_AIX
+
+
+# _LT_SHELL_INIT(ARG)
+# -------------------
+m4_define([_LT_SHELL_INIT],
+[m4_divert_text([M4SH-INIT], [$1
+])])# _LT_SHELL_INIT
+
+
+
+# _LT_PROG_ECHO_BACKSLASH
+# -----------------------
+# Find how we can fake an echo command that does not interpret backslash.
+# In particular, with Autoconf 2.60 or later we add some code to the start
+# of the generated configure script which will find a shell with a builtin
+# printf (which we can use as an echo command).
+m4_defun([_LT_PROG_ECHO_BACKSLASH],
+[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+AC_MSG_CHECKING([how to print strings])
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$[]1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*" 
+}
+
+case "$ECHO" in
+  printf*) AC_MSG_RESULT([printf]) ;;
+  print*) AC_MSG_RESULT([print -r]) ;;
+  *) AC_MSG_RESULT([cat]) ;;
+esac
+
+m4_ifdef([_AS_DETECT_SUGGESTED],
+[_AS_DETECT_SUGGESTED([
+  test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test "X`printf %s $ECHO`" = "X$ECHO" \
+      || test "X`print -r -- $ECHO`" = "X$ECHO" )])])
+
+_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
+_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes])
+])# _LT_PROG_ECHO_BACKSLASH
+
+
+# _LT_WITH_SYSROOT
+# ----------------
+AC_DEFUN([_LT_WITH_SYSROOT],
+[AC_MSG_CHECKING([for sysroot])
+AC_ARG_WITH([sysroot],
+[  --with-sysroot[=DIR] Search for dependent libraries within DIR
+                        (or the compiler's sysroot if not specified).],
+[], [with_sysroot=no])
+
+dnl lt_sysroot will always be passed unquoted.  We quote it here
+dnl in case the user passed a directory name.
+lt_sysroot=
+case ${with_sysroot} in #(
+ yes)
+   if test "$GCC" = yes; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   AC_MSG_RESULT([${with_sysroot}])
+   AC_MSG_ERROR([The sysroot must be an absolute path.])
+   ;;
+esac
+
+ AC_MSG_RESULT([${lt_sysroot:-no}])
+_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl
+[dependent libraries, and in which our libraries should be installed.])])
+
+# _LT_ENABLE_LOCK
+# ---------------
+m4_defun([_LT_ENABLE_LOCK],
+[AC_ARG_ENABLE([libtool-lock],
+  [AS_HELP_STRING([--disable-libtool-lock],
+    [avoid locking (might break parallel builds)])])
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE="32"
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE="64"
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out which ABI we are using.
+  echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    if test "$lt_cv_prog_gnu_ld" = yes; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_i386"
+	    ;;
+	  ppc64-*linux*|powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  ppc*-*linux*|powerpc*-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -belf"
+  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
+    [AC_LANG_PUSH(C)
+     AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
+     AC_LANG_POP])
+  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS="$SAVE_CFLAGS"
+  fi
+  ;;
+sparc*-*solaris*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*) LD="${LD-ld} -m elf64_sparc" ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks="$enable_libtool_lock"
+])# _LT_ENABLE_LOCK
+
+
+# _LT_PROG_AR
+# -----------
+m4_defun([_LT_PROG_AR],
+[AC_CHECK_TOOLS(AR, [ar], false)
+: ${AR=ar}
+: ${AR_FLAGS=cru}
+_LT_DECL([], [AR], [1], [The archiver])
+_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive])
+
+AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file],
+  [lt_cv_ar_at_file=no
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
+     [echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD'
+      AC_TRY_EVAL([lt_ar_try])
+      if test "$ac_status" -eq 0; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	AC_TRY_EVAL([lt_ar_try])
+	if test "$ac_status" -ne 0; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+     ])
+  ])
+
+if test "x$lt_cv_ar_at_file" = xno; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+_LT_DECL([], [archiver_list_spec], [1],
+  [How to feed a file listing to the archiver])
+])# _LT_PROG_AR
+
+
+# _LT_CMD_OLD_ARCHIVE
+# -------------------
+m4_defun([_LT_CMD_OLD_ARCHIVE],
+[_LT_PROG_AR
+
+AC_CHECK_TOOL(STRIP, strip, :)
+test -z "$STRIP" && STRIP=:
+_LT_DECL([], [STRIP], [1], [A symbol stripping program])
+
+AC_CHECK_TOOL(RANLIB, ranlib, :)
+test -z "$RANLIB" && RANLIB=:
+_LT_DECL([], [RANLIB], [1],
+    [Commands used to install an old-style archive])
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+_LT_DECL([], [old_postinstall_cmds], [2])
+_LT_DECL([], [old_postuninstall_cmds], [2])
+_LT_TAGDECL([], [old_archive_cmds], [2],
+    [Commands used to build an old-style archive])
+_LT_DECL([], [lock_old_archive_extraction], [0],
+    [Whether to use a lock for old archive extraction])
+])# _LT_CMD_OLD_ARCHIVE
+
+
+# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#		[OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------------------
+# Check whether the given compiler option works
+AC_DEFUN([_LT_COMPILER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$3"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       $2=yes
+     fi
+   fi
+   $RM conftest*
+])
+
+if test x"[$]$2" = xyes; then
+    m4_if([$5], , :, [$5])
+else
+    m4_if([$6], , :, [$6])
+fi
+])# _LT_COMPILER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
+
+
+# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#                  [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------
+# Check whether the given linker option works
+AC_DEFUN([_LT_LINKER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $3"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&AS_MESSAGE_LOG_FD
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         $2=yes
+       fi
+     else
+       $2=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+])
+
+if test x"[$]$2" = xyes; then
+    m4_if([$4], , :, [$4])
+else
+    m4_if([$5], , :, [$5])
+fi
+])# _LT_LINKER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
+
+
+# LT_CMD_MAX_LEN
+#---------------
+AC_DEFUN([LT_CMD_MAX_LEN],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+# find the maximum length of command line arguments
+AC_MSG_CHECKING([the maximum length of command line arguments])
+AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
+  i=0
+  teststring="ABCD"
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[	 ]]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8 ; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test "X"`func_fallback_echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test $i != 17 # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+])
+if test -n $lt_cv_sys_max_cmd_len ; then
+  AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
+else
+  AC_MSG_RESULT(none)
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+_LT_DECL([], [max_cmd_len], [0],
+    [What is the maximum length of a command?])
+])# LT_CMD_MAX_LEN
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
+
+
+# _LT_HEADER_DLFCN
+# ----------------
+m4_defun([_LT_HEADER_DLFCN],
+[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
+])# _LT_HEADER_DLFCN
+
+
+# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
+#                      ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
+# ----------------------------------------------------------------
+m4_defun([_LT_TRY_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test "$cross_compiling" = yes; then :
+  [$4]
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+[#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisbility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}]
+_LT_EOF
+  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) $1 ;;
+      x$lt_dlneed_uscore) $2 ;;
+      x$lt_dlunknown|x*) $3 ;;
+    esac
+  else :
+    # compilation failed
+    $3
+  fi
+fi
+rm -fr conftest*
+])# _LT_TRY_DLOPEN_SELF
+
+
+# LT_SYS_DLOPEN_SELF
+# ------------------
+AC_DEFUN([LT_SYS_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    AC_CHECK_LIB([dl], [dlopen],
+		[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ])
+    ;;
+
+  *)
+    AC_CHECK_FUNC([shl_load],
+	  [lt_cv_dlopen="shl_load"],
+      [AC_CHECK_LIB([dld], [shl_load],
+	    [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"],
+	[AC_CHECK_FUNC([dlopen],
+	      [lt_cv_dlopen="dlopen"],
+	  [AC_CHECK_LIB([dl], [dlopen],
+		[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
+	    [AC_CHECK_LIB([svld], [dlopen],
+		  [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
+	      [AC_CHECK_LIB([dld], [dld_link],
+		    [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"])
+	      ])
+	    ])
+	  ])
+	])
+      ])
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    AC_CACHE_CHECK([whether a program can dlopen itself],
+	  lt_cv_dlopen_self, [dnl
+	  _LT_TRY_DLOPEN_SELF(
+	    lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
+	    lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
+    ])
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
+	  lt_cv_dlopen_self_static, [dnl
+	  _LT_TRY_DLOPEN_SELF(
+	    lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
+	    lt_cv_dlopen_self_static=no,  lt_cv_dlopen_self_static=cross)
+      ])
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+_LT_DECL([dlopen_support], [enable_dlopen], [0],
+	 [Whether dlopen is supported])
+_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
+	 [Whether dlopen of programs is supported])
+_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
+	 [Whether dlopen of statically linked programs is supported])
+])# LT_SYS_DLOPEN_SELF
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
+
+
+# _LT_COMPILER_C_O([TAGNAME])
+# ---------------------------
+# Check to see if options -c and -o are simultaneously supported by compiler.
+# This macro does not hard code the compiler like AC_PROG_CC_C_O.
+m4_defun([_LT_COMPILER_C_O],
+[m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
+  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
+  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+     fi
+   fi
+   chmod u+w . 2>&AS_MESSAGE_LOG_FD
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+])
+_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
+	[Does compiler simultaneously support -c and -o options?])
+])# _LT_COMPILER_C_O
+
+
+# _LT_COMPILER_FILE_LOCKS([TAGNAME])
+# ----------------------------------
+# Check to see if we can do hard links to lock some files if needed
+m4_defun([_LT_COMPILER_FILE_LOCKS],
+[m4_require([_LT_ENABLE_LOCK])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_COMPILER_C_O([$1])
+
+hard_links="nottested"
+if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  AC_MSG_CHECKING([if we can lock with hard links])
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  AC_MSG_RESULT([$hard_links])
+  if test "$hard_links" = no; then
+    AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe])
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
+])# _LT_COMPILER_FILE_LOCKS
+
+
+# _LT_CHECK_OBJDIR
+# ----------------
+m4_defun([_LT_CHECK_OBJDIR],
+[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
+[rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null])
+objdir=$lt_cv_objdir
+_LT_DECL([], [objdir], [0],
+         [The name of the directory that contains temporary libtool files])dnl
+m4_pattern_allow([LT_OBJDIR])dnl
+AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/",
+  [Define to the sub-directory in which libtool stores uninstalled libraries.])
+])# _LT_CHECK_OBJDIR
+
+
+# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
+# --------------------------------------
+# Check hardcoding attributes.
+m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
+[AC_MSG_CHECKING([how to hardcode library paths into programs])
+_LT_TAGVAR(hardcode_action, $1)=
+if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
+   test -n "$_LT_TAGVAR(runpath_var, $1)" ||
+   test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then
+
+  # We can hardcode non-existent directories.
+  if test "$_LT_TAGVAR(hardcode_direct, $1)" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no &&
+     test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then
+    # Linking always hardcodes the temporary library directory.
+    _LT_TAGVAR(hardcode_action, $1)=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    _LT_TAGVAR(hardcode_action, $1)=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  _LT_TAGVAR(hardcode_action, $1)=unsupported
+fi
+AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
+
+if test "$_LT_TAGVAR(hardcode_action, $1)" = relink ||
+   test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+_LT_TAGDECL([], [hardcode_action], [0],
+    [How to hardcode a shared library path into an executable])
+])# _LT_LINKER_HARDCODE_LIBPATH
+
+
+# _LT_CMD_STRIPLIB
+# ----------------
+m4_defun([_LT_CMD_STRIPLIB],
+[m4_require([_LT_DECL_EGREP])
+striplib=
+old_striplib=
+AC_MSG_CHECKING([whether stripping libraries is possible])
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  AC_MSG_RESULT([yes])
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP" ; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      AC_MSG_RESULT([yes])
+    else
+      AC_MSG_RESULT([no])
+    fi
+    ;;
+  *)
+    AC_MSG_RESULT([no])
+    ;;
+  esac
+fi
+_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
+_LT_DECL([], [striplib], [1])
+])# _LT_CMD_STRIPLIB
+
+
+# _LT_SYS_DYNAMIC_LINKER([TAG])
+# -----------------------------
+# PORTME Fill in your ld.so characteristics
+m4_defun([_LT_SYS_DYNAMIC_LINKER],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_OBJDUMP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+AC_MSG_CHECKING([dynamic linker characteristics])
+m4_if([$1],
+	[], [
+if test "$GCC" = yes; then
+  case $host_os in
+    darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
+    *) lt_awk_arg="/^libraries:/" ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq="s,=\([[A-Za-z]]:\),\1,g" ;;
+    *) lt_sed_strip_eq="s,=/,/,g" ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary.
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
+    else
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS=" "; FS="/|\n";} {
+  lt_foo="";
+  lt_count=0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo="/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[[lt_foo]]++; }
+  if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's,/\([[A-Za-z]]:\),\1,g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi])
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix[[4-9]]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[[01]] | aix4.[[01]].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[[45]]*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+m4_if([$1], [],[
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+    library_names_spec='${libname}.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec="$LIB"
+      if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+m4_if([$1], [],[
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[[123]]*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  # Handle Gentoo/FreeBSD as it was Linux
+  case $host_vendor in
+    gentoo)
+      version_type=linux ;;
+    *)
+      version_type=freebsd-$objformat ;;
+  esac
+
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+    linux)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      need_lib_prefix=no
+      need_version=no
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[[01]]* | freebsdelf3.[[01]]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
+  freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
+haiku*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[[3-9]]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test "$lt_cv_prog_gnu_ld" = yes; then
+		version_type=linux
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
+    [lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
+	 LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+      [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
+	 [lt_cv_shlibpath_overrides_runpath=yes])])
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+    ])
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Append ld.so.conf contents to the search path
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec="/usr/lib"
+  need_lib_prefix=no
+  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
+  case $host_os in
+    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
+    *)				need_version=no  ;;
+  esac
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[[89]] | openbsd2.[[89]].*)
+	shlibpath_overrides_runpath=no
+	;;
+      *)
+	shlibpath_overrides_runpath=yes
+	;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext_cmds=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test "$with_gnu_ld" = yes; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+AC_MSG_RESULT([$dynamic_linker])
+test "$dynamic_linker" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
+  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+fi
+if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
+  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+fi
+
+_LT_DECL([], [variables_saved_for_relink], [1],
+    [Variables whose values should be saved in libtool wrapper scripts and
+    restored at link time])
+_LT_DECL([], [need_lib_prefix], [0],
+    [Do we need the "lib" prefix for modules?])
+_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
+_LT_DECL([], [version_type], [0], [Library versioning type])
+_LT_DECL([], [runpath_var], [0],  [Shared library runtime path variable])
+_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
+_LT_DECL([], [shlibpath_overrides_runpath], [0],
+    [Is shlibpath searched before the hard-coded library search path?])
+_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
+_LT_DECL([], [library_names_spec], [1],
+    [[List of archive names.  First name is the real one, the rest are links.
+    The last name is the one that the linker finds with -lNAME]])
+_LT_DECL([], [soname_spec], [1],
+    [[The coded name of the library, if different from the real name]])
+_LT_DECL([], [install_override_mode], [1],
+    [Permission mode override for installation of shared libraries])
+_LT_DECL([], [postinstall_cmds], [2],
+    [Command to use after installation of a shared archive])
+_LT_DECL([], [postuninstall_cmds], [2],
+    [Command to use after uninstallation of a shared archive])
+_LT_DECL([], [finish_cmds], [2],
+    [Commands used to finish a libtool library installation in a directory])
+_LT_DECL([], [finish_eval], [1],
+    [[As "finish_cmds", except a single script fragment to be evaled but
+    not shown]])
+_LT_DECL([], [hardcode_into_libs], [0],
+    [Whether we should hardcode library paths into libraries])
+_LT_DECL([], [sys_lib_search_path_spec], [2],
+    [Compile-time system search path for libraries])
+_LT_DECL([], [sys_lib_dlsearch_path_spec], [2],
+    [Run-time system search path for libraries])
+])# _LT_SYS_DYNAMIC_LINKER
+
+
+# _LT_PATH_TOOL_PREFIX(TOOL)
+# --------------------------
+# find a file program which can recognize shared library
+AC_DEFUN([_LT_PATH_TOOL_PREFIX],
+[m4_require([_LT_DECL_EGREP])dnl
+AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
+[case $MAGIC_CMD in
+[[\\/*] |  ?:[\\/]*])
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+dnl $ac_dummy forces splitting on constant user-supplied paths.
+dnl POSIX.2 word splitting is done only on the output of word expansions,
+dnl not every word.  This closes a longstanding sh security hole.
+  ac_dummy="m4_if([$2], , $PATH, [$2])"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$1; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/$1"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac])
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  AC_MSG_RESULT($MAGIC_CMD)
+else
+  AC_MSG_RESULT(no)
+fi
+_LT_DECL([], [MAGIC_CMD], [0],
+	 [Used to examine libraries when file_magic_cmd begins with "file"])dnl
+])# _LT_PATH_TOOL_PREFIX
+
+# Old name:
+AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
+
+
+# _LT_PATH_MAGIC
+# --------------
+# find a file program which can recognize a shared library
+m4_defun([_LT_PATH_MAGIC],
+[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
+  else
+    MAGIC_CMD=:
+  fi
+fi
+])# _LT_PATH_MAGIC
+
+
+# LT_PATH_LD
+# ----------
+# find the pathname to the GNU or non-GNU linker
+AC_DEFUN([LT_PATH_LD],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PROG_ECHO_BACKSLASH])dnl
+
+AC_ARG_WITH([gnu-ld],
+    [AS_HELP_STRING([--with-gnu-ld],
+	[assume the C compiler uses GNU ld @<:@default=no@:>@])],
+    [test "$withval" = no || with_gnu_ld=yes],
+    [with_gnu_ld=no])dnl
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  AC_MSG_CHECKING([for ld used by $CC])
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [[\\/]]* | ?:[[\\/]]*)
+      re_direlt='/[[^/]][[^/]]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  AC_MSG_CHECKING([for GNU ld])
+else
+  AC_MSG_CHECKING([for non-GNU ld])
+fi
+AC_CACHE_VAL(lt_cv_path_LD,
+[if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi])
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  AC_MSG_RESULT($LD)
+else
+  AC_MSG_RESULT(no)
+fi
+test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
+_LT_PATH_LD_GNU
+AC_SUBST([LD])
+
+_LT_TAGDECL([], [LD], [1], [The linker used to build libraries])
+])# LT_PATH_LD
+
+# Old names:
+AU_ALIAS([AM_PROG_LD], [LT_PATH_LD])
+AU_ALIAS([AC_PROG_LD], [LT_PATH_LD])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_LD], [])
+dnl AC_DEFUN([AC_PROG_LD], [])
+
+
+# _LT_PATH_LD_GNU
+#- --------------
+m4_defun([_LT_PATH_LD_GNU],
+[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
+[# I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac])
+with_gnu_ld=$lt_cv_prog_gnu_ld
+])# _LT_PATH_LD_GNU
+
+
+# _LT_CMD_RELOAD
+# --------------
+# find reload flag for linker
+#   -- PORTME Some linkers may need a different reload flag.
+m4_defun([_LT_CMD_RELOAD],
+[AC_CACHE_CHECK([for $LD option to reload object files],
+  lt_cv_ld_reload_flag,
+  [lt_cv_ld_reload_flag='-r'])
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    if test "$GCC" != yes; then
+      reload_cmds=false
+    fi
+    ;;
+  darwin*)
+    if test "$GCC" = yes; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+_LT_TAGDECL([], [reload_flag], [1], [How to create reloadable object files])dnl
+_LT_TAGDECL([], [reload_cmds], [2])dnl
+])# _LT_CMD_RELOAD
+
+
+# _LT_CHECK_MAGIC_METHOD
+# ----------------------
+# how to check for library dependencies
+#  -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_MAGIC_METHOD],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+AC_CACHE_CHECK([how to recognize dependent libraries],
+lt_cv_deplibs_check_method,
+[lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# `unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# which responds to the $file_magic_cmd with a given extended regex.
+# If you have `file' or equivalent on your system and you're not sure
+# whether `pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[[4-9]]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[[45]]*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
+  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]']
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[[3-9]]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be Linux ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+])
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+_LT_DECL([], [deplibs_check_method], [1],
+    [Method to check whether dependent libraries are shared objects])
+_LT_DECL([], [file_magic_cmd], [1],
+    [Command to use when deplibs_check_method = "file_magic"])
+_LT_DECL([], [file_magic_glob], [1],
+    [How to find potential files when deplibs_check_method = "file_magic"])
+_LT_DECL([], [want_nocaseglob], [1],
+    [Find potential files using nocaseglob when deplibs_check_method = "file_magic"])
+])# _LT_CHECK_MAGIC_METHOD
+
+
+# LT_PATH_NM
+# ----------
+# find the pathname to a BSD- or MS-compatible name lister
+AC_DEFUN([LT_PATH_NM],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
+[if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM="$NM"
+else
+  lt_nm_to_check="${ac_tool_prefix}nm"
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS="$lt_save_ifs"
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm="$ac_dir/$lt_tmp_nm"
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
+	*/dev/null* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS="$lt_save_ifs"
+  done
+  : ${lt_cv_path_NM=no}
+fi])
+if test "$lt_cv_path_NM" != "no"; then
+  NM="$lt_cv_path_NM"
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :)
+    case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+  AC_SUBST([DUMPBIN])
+  if test "$DUMPBIN" != ":"; then
+    NM="$DUMPBIN"
+  fi
+fi
+test -z "$NM" && NM=nm
+AC_SUBST([NM])
+_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
+
+AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
+  [lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD)
+  cat conftest.out >&AS_MESSAGE_LOG_FD
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*])
+])# LT_PATH_NM
+
+# Old names:
+AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
+AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_NM], [])
+dnl AC_DEFUN([AC_PROG_NM], [])
+
+# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+# --------------------------------
+# how to determine the name of the shared library
+# associated with a specific link library.
+#  -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+m4_require([_LT_DECL_DLLTOOL])
+AC_CACHE_CHECK([how to associate runtime and link libraries],
+lt_cv_sharedlib_from_linklib_cmd,
+[lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh
+  # decide which to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd="$ECHO"
+  ;;
+esac
+])
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+_LT_DECL([], [sharedlib_from_linklib_cmd], [1],
+    [Command to associate shared and link libraries])
+])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+
+
+# _LT_PATH_MANIFEST_TOOL
+# ----------------------
+# locate the manifest tool
+m4_defun([_LT_PATH_MANIFEST_TOOL],
+[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :)
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool],
+  [lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*])
+if test "x$lt_cv_path_mainfest_tool" != xyes; then
+  MANIFEST_TOOL=:
+fi
+_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl
+])# _LT_PATH_MANIFEST_TOOL
+
+
+# LT_LIB_M
+# --------
+# check for math library
+AC_DEFUN([LT_LIB_M],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+LIBM=
+case $host in
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+  # These system don't have libm, or don't need it
+  ;;
+*-ncr-sysv4.3*)
+  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
+  AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
+  ;;
+*)
+  AC_CHECK_LIB(m, cos, LIBM="-lm")
+  ;;
+esac
+AC_SUBST([LIBM])
+])# LT_LIB_M
+
+# Old name:
+AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_CHECK_LIBM], [])
+
+
+# _LT_COMPILER_NO_RTTI([TAGNAME])
+# -------------------------------
+m4_defun([_LT_COMPILER_NO_RTTI],
+[m4_require([_LT_TAG_COMPILER])dnl
+
+_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+
+if test "$GCC" = yes; then
+  case $cc_basename in
+  nvcc*)
+    _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;;
+  *)
+    _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;;
+  esac
+
+  _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
+    lt_cv_prog_compiler_rtti_exceptions,
+    [-fno-rtti -fno-exceptions], [],
+    [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
+fi
+_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
+	[Compiler flag to turn off builtin functions])
+])# _LT_COMPILER_NO_RTTI
+
+
+# _LT_CMD_GLOBAL_SYMBOLS
+# ----------------------
+m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+AC_MSG_CHECKING([command to parse $NM output from $compiler object])
+AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
+[
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[[BCDEGRST]]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[[BCDT]]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[[ABCDGISTW]]'
+  ;;
+hpux*)
+  if test "$host_cpu" = ia64; then
+    symcode='[[ABCDEGRST]]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[[BCDEGRST]]'
+  ;;
+osf*)
+  symcode='[[BCDEGQRST]]'
+  ;;
+solaris*)
+  symcode='[[BDRT]]'
+  ;;
+sco3.2v5*)
+  symcode='[[DT]]'
+  ;;
+sysv4.2uw2*)
+  symcode='[[DT]]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[[ABDT]]'
+  ;;
+sysv4)
+  symcode='[[DFNSTU]]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[[ABCDGIRSTW]]' ;;
+esac
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/  {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"lib\2\", (void *) \&\2},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function
+    # and D for any global variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK ['"\
+"     {last_section=section; section=\$ 3};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
+"     {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
+"     s[1]~/^[@?]/{print s[1], s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx]"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[	 ]]\($symcode$symcode*\)[[	 ]][[	 ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if AC_TRY_EVAL(ac_compile); then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
+/* DATA imports from DLLs on WIN32 con't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT@&t@_DLSYM_CONST
+#elif defined(__osf__)
+/* This system does not cope well with relocations in const data.  */
+# define LT@&t@_DLSYM_CONST
+#else
+# define LT@&t@_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT@&t@_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[[]] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS="conftstm.$ac_objext"
+	  CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
+	  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
+    fi
+  else
+    echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+])
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  AC_MSG_RESULT(failed)
+else
+  AC_MSG_RESULT(ok)
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
+    [Take the output of nm and produce a listing of raw symbols and C names])
+_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
+    [Transform the output of nm in a proper C declaration])
+_LT_DECL([global_symbol_to_c_name_address],
+    [lt_cv_sys_global_symbol_to_c_name_address], [1],
+    [Transform the output of nm in a C name address pair])
+_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
+    [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
+    [Transform the output of nm in a C name address pair when lib prefix is needed])
+_LT_DECL([], [nm_file_list_spec], [1],
+    [Specify filename containing input files for $NM])
+]) # _LT_CMD_GLOBAL_SYMBOLS
+
+
+# _LT_COMPILER_PIC([TAGNAME])
+# ---------------------------
+m4_defun([_LT_COMPILER_PIC],
+[m4_require([_LT_TAG_COMPILER])dnl
+_LT_TAGVAR(lt_prog_compiler_wl, $1)=
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+_LT_TAGVAR(lt_prog_compiler_static, $1)=
+
+m4_if([$1], [CXX], [
+  # C++ specific cases for pic, static, wl, etc.
+  if test "$GXX" = yes; then
+    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)=
+      ;;
+    interix[[3-9]]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+    *)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[[4-9]]*)
+	# All AIX code is PIC.
+	if test "$host_cpu" = ia64; then
+	  # AIX 5 now supports IA64 processor
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	else
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      mingw* | cygwin* | os2* | pw32* | cegcc*)
+	# This hack is so that the source file can tell whether it is being
+	# built for inclusion in a dll (and should export symbols for example).
+	m4_if([$1], [GCJ], [],
+	  [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+	    if test "$host_cpu" != ia64; then
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64 which still supported -KPIC.
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd*)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+	;;
+    esac
+  fi
+],
+[
+  if test "$GCC" = yes; then
+    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[[3-9]]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker '
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Xcompiler -fPIC'
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      else
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC (with -KPIC) is the default.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu)
+      case $cc_basename in
+      # old Intel for x86_64 which still supported -KPIC.
+      ecc*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+        ;;
+      ccc*)
+        _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+        # All Alpha code is PIC.
+        _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ F* | *Sun*Fortran*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # All OSF/1 code is PIC.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    rdos*)
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    solaris*)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    unicos*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+
+    uts4*)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *)
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+    esac
+  fi
+])
+case $host_os in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+    ;;
+  *)
+    _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
+    ;;
+esac
+
+AC_CACHE_CHECK([for $compiler option to produce PIC],
+  [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)],
+  [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+  _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
+    [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
+    [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
+    [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
+     "" | " "*) ;;
+     *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
+     esac],
+    [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+     _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
+fi
+_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
+	[Additional compiler flags for building library objects])
+
+_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
+	[How to pass a linker flag through the compiler])
+#
+# Check to make sure the static flag actually works.
+#
+wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
+_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
+  _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
+  $lt_tmp_static_flag,
+  [],
+  [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
+_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
+	[Compiler flag to prevent dynamic linking])
+])# _LT_COMPILER_PIC
+
+
+# _LT_LINKER_SHLIBS([TAGNAME])
+# ----------------------------
+# See if the linker supports building shared libraries.
+m4_defun([_LT_LINKER_SHLIBS],
+[AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+m4_if([$1], [CXX], [
+  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+  case $host_os in
+  aix[[4-9]]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to AIX nm, but means don't demangle with GNU nm
+    # Also, AIX nm treats weak defined symbols like other global defined
+    # symbols, whereas GNU nm marks them as "W".
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    else
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
+    ;;
+  cygwin* | mingw* | cegcc*)
+    case $cc_basename in
+    cl*) ;;
+    *)
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+      _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+      ;;
+    esac
+    ;;
+  *)
+    _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+    ;;
+  esac
+], [
+  runpath_var=
+  _LT_TAGVAR(allow_undefined_flag, $1)=
+  _LT_TAGVAR(always_export_symbols, $1)=no
+  _LT_TAGVAR(archive_cmds, $1)=
+  _LT_TAGVAR(archive_expsym_cmds, $1)=
+  _LT_TAGVAR(compiler_needs_object, $1)=no
+  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+  _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  _LT_TAGVAR(hardcode_automatic, $1)=no
+  _LT_TAGVAR(hardcode_direct, $1)=no
+  _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+  _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
+  _LT_TAGVAR(hardcode_libdir_separator, $1)=
+  _LT_TAGVAR(hardcode_minus_L, $1)=no
+  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  _LT_TAGVAR(inherit_rpath, $1)=no
+  _LT_TAGVAR(link_all_deplibs, $1)=unknown
+  _LT_TAGVAR(module_cmds, $1)=
+  _LT_TAGVAR(module_expsym_cmds, $1)=
+  _LT_TAGVAR(old_archive_from_new_cmds, $1)=
+  _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
+  _LT_TAGVAR(thread_safe_flag_spec, $1)=
+  _LT_TAGVAR(whole_archive_flag_spec, $1)=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  _LT_TAGVAR(include_expsyms, $1)=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+dnl Note also adjust exclude_expsyms for C++ above.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  _LT_TAGVAR(ld_shlibs, $1)=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test "$with_gnu_ld" = yes; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;;
+	  *\ \(GNU\ Binutils\)\ [[3-9]]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test "$lt_use_gnu_ld_interface" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+    else
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[[3-9]]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            _LT_TAGVAR(archive_expsym_cmds, $1)=''
+        ;;
+      m68k)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	_LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+      # as there is no search path for DLLs.
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols'
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(always_export_symbols, $1)=no
+      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+      _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file (1st line
+	# is EXPORTS), use it as is; otherwise, prepend...
+	_LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	  cp $export_symbols $output_objdir/$soname.def;
+	else
+	  echo EXPORTS > $output_objdir/$soname.def;
+	  cat $export_symbols >> $output_objdir/$soname.def;
+	fi~
+	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    haiku*)
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    interix[[3-9]]*)
+      _LT_TAGVAR(hardcode_direct, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test "$host_os" = linux-dietlibc; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test "$tmp_diet" = no
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)=
+	  tmp_sharedflag='--shared' ;;
+	xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  _LT_TAGVAR(compiler_needs_object, $1)=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  _LT_TAGVAR(compiler_needs_object, $1)=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	_LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+
+        if test "x$supports_anon_versioning" = xyes; then
+          _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+	    cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	    echo "local: *; };" >> $output_objdir/$libname.ver~
+	    $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+	  _LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='-rpath $libdir'
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test "x$supports_anon_versioning" = xyes; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+	      cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	      echo "local: *; };" >> $output_objdir/$libname.ver~
+	      $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        _LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+    esac
+
+    if test "$_LT_TAGVAR(ld_shlibs, $1)" = no; then
+      runpath_var=
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(always_export_symbols, $1)=yes
+      _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	_LT_TAGVAR(hardcode_direct, $1)=unsupported
+      fi
+      ;;
+
+    aix[[4-9]]*)
+      if test "$host_cpu" = ia64; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=""
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to AIX nm, but means don't demangle with GNU nm
+	# Also, AIX nm treats weak defined symbols like other global
+	# defined symbols, whereas GNU nm marks them as "W".
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	else
+	  _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# need to do runtime linking.
+	case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      _LT_TAGVAR(archive_cmds, $1)=''
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
+
+      if test "$GCC" = yes; then
+	case $host_os in aix4.[[012]]|aix4.[[012]].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  _LT_TAGVAR(hardcode_direct, $1)=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	  _LT_TAGVAR(hardcode_libdir_separator, $1)=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test "$aix_use_runtimelinking" = yes; then
+	  shared_flag="$shared_flag "'${wl}-G'
+	fi
+      else
+	# not using gcc
+	if test "$host_cpu" = ia64; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag='${wl}-G'
+	  else
+	    shared_flag='${wl}-bM:SRE'
+	  fi
+	fi
+      fi
+
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      _LT_TAGVAR(always_export_symbols, $1)=yes
+      if test "$aix_use_runtimelinking" = yes; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	_LT_TAGVAR(allow_undefined_flag, $1)='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        _LT_SYS_MODULE_PATH_AIX([$1])
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+      else
+	if test "$host_cpu" = ia64; then
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
+	  _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+	  _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 _LT_SYS_MODULE_PATH_AIX([$1])
+	 _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
+	  _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
+	  if test "$with_gnu_ld" = yes; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+	  fi
+	  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	  # This is similar to how AIX traditionally builds its shared libraries.
+	  _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            _LT_TAGVAR(archive_expsym_cmds, $1)=''
+        ;;
+      m68k)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[[45]]*)
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl*)
+	# Native MSVC
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	_LT_TAGVAR(always_export_symbols, $1)=yes
+	_LT_TAGVAR(file_list_spec, $1)='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=".dll"
+	# FIXME: Setting linknames here is a bad hack.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
+	_LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	    sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
+	  else
+	    sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
+	  fi~
+	  $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+	  linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+	_LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+	  lt_tool_outputfile="@TOOL_OUTPUT@"~
+	  case $lt_outputfile in
+	    *.exe|*.EXE) ;;
+	    *)
+	      lt_outputfile="$lt_outputfile.exe"
+	      lt_tool_outputfile="$lt_tool_outputfile.exe"
+	      ;;
+	  esac~
+	  if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
+	    $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+	    $RM "$lt_outputfile.manifest";
+	  fi'
+	;;
+      *)
+	# Assume MSVC wrapper
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=".dll"
+	# FIXME: Setting linknames here is a bad hack.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	_LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	# FIXME: Should let the user specify the lib program.
+	_LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      _LT_DARWIN_LINKER_FEATURES($1)
+      ;;
+
+    dgux*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    freebsd1*)
+      _LT_TAGVAR(ld_shlibs, $1)=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+      ;;
+
+    hpux10*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test "$with_gnu_ld" = no; then
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+	_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)='+b $libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
+	_LT_TAGVAR(hardcode_direct, $1)=yes
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	_LT_TAGVAR(hardcode_minus_L, $1)=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	case $host_cpu in
+	hppa*64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	m4_if($1, [], [
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  _LT_LINKER_OPTION([if $CC understands -b],
+	    _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b],
+	    [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
+	    [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])],
+	  [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
+	  ;;
+	esac
+      fi
+      if test "$with_gnu_ld" = no; then
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  _LT_TAGVAR(hardcode_direct, $1)=no
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	  ;;
+	*)
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol],
+	  [lt_cv_irix_exported_symbol],
+	  [save_LDFLAGS="$LDFLAGS"
+	   LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
+	   AC_LINK_IFELSE(
+	     [AC_LANG_SOURCE(
+	        [AC_LANG_CASE([C], [[int foo (void) { return 0; }]],
+			      [C++], [[int foo (void) { return 0; }]],
+			      [Fortran 77], [[
+      subroutine foo
+      end]],
+			      [Fortran], [[
+      subroutine foo
+      end]])])],
+	      [lt_cv_irix_exported_symbol=yes],
+	      [lt_cv_irix_exported_symbol=no])
+           LDFLAGS="$save_LDFLAGS"])
+	if test "$lt_cv_irix_exported_symbol" = yes; then
+          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
+	fi
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(inherit_rpath, $1)=yes
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    newsos6)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd*)
+      if test -f /usr/libexec/ld.so; then
+	_LT_TAGVAR(hardcode_direct, $1)=yes
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+	else
+	  case $host_os in
+	   openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*)
+	     _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+	     _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	     ;;
+	   *)
+	     _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	     _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	     ;;
+	  esac
+	fi
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    os2*)
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      else
+	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+	$CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    solaris*)
+      _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
+      if test "$GCC" = yes; then
+	wlarc='${wl}'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='${wl}'
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      case $host_os in
+      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands `-z linker_flag'.  GCC discards it without `$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test "$GCC" = yes; then
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+	else
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
+	  _LT_TAGVAR(hardcode_direct, $1)=no
+        ;;
+	motorola)
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4.3*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	_LT_TAGVAR(ld_shlibs, $1)=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We can NOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+      _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      _LT_TAGVAR(ld_shlibs, $1)=no
+      ;;
+    esac
+
+    if test x$host_vendor = xsni; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+])
+AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+
+_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
+
+_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
+_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
+_LT_DECL([], [extract_expsyms_cmds], [2],
+    [The commands to extract the exported symbol list from a shared archive])
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
+x|xyes)
+  # Assume -lc should be added
+  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $_LT_TAGVAR(archive_cmds, $1) in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      AC_CACHE_CHECK([whether -lc should be explicitly linked in],
+	[lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1),
+	[$RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
+	  pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
+	  _LT_TAGVAR(allow_undefined_flag, $1)=
+	  if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
+	  then
+	    lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	  else
+	    lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	  fi
+	  _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+	])
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
+    [Whether or not to add -lc for building shared libraries])
+_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
+    [enable_shared_with_static_runtimes], [0],
+    [Whether or not to disallow shared libs when runtime libs are static])
+_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
+    [Compiler flag to allow reflexive dlopens])
+_LT_TAGDECL([], [whole_archive_flag_spec], [1],
+    [Compiler flag to generate shared objects directly from archives])
+_LT_TAGDECL([], [compiler_needs_object], [1],
+    [Whether the compiler copes with passing no objects directly])
+_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
+    [Create an old-style archive from a shared archive])
+_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
+    [Create a temporary old-style archive to link instead of a shared archive])
+_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
+_LT_TAGDECL([], [archive_expsym_cmds], [2])
+_LT_TAGDECL([], [module_cmds], [2],
+    [Commands used to build a loadable module if different from building
+    a shared archive.])
+_LT_TAGDECL([], [module_expsym_cmds], [2])
+_LT_TAGDECL([], [with_gnu_ld], [1],
+    [Whether we are building with GNU ld or not])
+_LT_TAGDECL([], [allow_undefined_flag], [1],
+    [Flag that allows shared libraries with undefined symbols to be built])
+_LT_TAGDECL([], [no_undefined_flag], [1],
+    [Flag that enforces no undefined symbols])
+_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
+    [Flag to hardcode $libdir into a binary during linking.
+    This must work even if $libdir does not exist])
+_LT_TAGDECL([], [hardcode_libdir_flag_spec_ld], [1],
+    [[If ld is used when linking, flag to hardcode $libdir into a binary
+    during linking.  This must work even if $libdir does not exist]])
+_LT_TAGDECL([], [hardcode_libdir_separator], [1],
+    [Whether we need a single "-rpath" flag with a separated argument])
+_LT_TAGDECL([], [hardcode_direct], [0],
+    [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
+    DIR into the resulting binary])
+_LT_TAGDECL([], [hardcode_direct_absolute], [0],
+    [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
+    DIR into the resulting binary and the resulting library dependency is
+    "absolute", i.e impossible to change by setting ${shlibpath_var} if the
+    library is relocated])
+_LT_TAGDECL([], [hardcode_minus_L], [0],
+    [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+    into the resulting binary])
+_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
+    [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+    into the resulting binary])
+_LT_TAGDECL([], [hardcode_automatic], [0],
+    [Set to "yes" if building a shared library automatically hardcodes DIR
+    into the library and all subsequent libraries and executables linked
+    against it])
+_LT_TAGDECL([], [inherit_rpath], [0],
+    [Set to yes if linker adds runtime paths of dependent libraries
+    to runtime path list])
+_LT_TAGDECL([], [link_all_deplibs], [0],
+    [Whether libtool must link a program against all its dependency libraries])
+_LT_TAGDECL([], [always_export_symbols], [0],
+    [Set to "yes" if exported symbols are required])
+_LT_TAGDECL([], [export_symbols_cmds], [2],
+    [The commands to list exported symbols])
+_LT_TAGDECL([], [exclude_expsyms], [1],
+    [Symbols that should not be listed in the preloaded symbols])
+_LT_TAGDECL([], [include_expsyms], [1],
+    [Symbols that must always be exported])
+_LT_TAGDECL([], [prelink_cmds], [2],
+    [Commands necessary for linking programs (against libraries) with templates])
+_LT_TAGDECL([], [postlink_cmds], [2],
+    [Commands necessary for finishing linking programs])
+_LT_TAGDECL([], [file_list_spec], [1],
+    [Specify filename containing input files])
+dnl FIXME: Not yet implemented
+dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
+dnl    [Compiler flag to generate thread safe objects])
+])# _LT_LINKER_SHLIBS
+
+
+# _LT_LANG_C_CONFIG([TAG])
+# ------------------------
+# Ensure that the configuration variables for a C compiler are suitably
+# defined.  These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_C_CONFIG],
+[m4_require([_LT_DECL_EGREP])dnl
+lt_save_CC="$CC"
+AC_LANG_PUSH(C)
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+_LT_TAG_COMPILER
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_SYS_DYNAMIC_LINKER($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+  LT_SYS_DLOPEN_SELF
+  _LT_CMD_STRIPLIB
+
+  # Report which library types will actually be built
+  AC_MSG_CHECKING([if libtool supports shared libraries])
+  AC_MSG_RESULT([$can_build_shared])
+
+  AC_MSG_CHECKING([whether to build shared libraries])
+  test "$can_build_shared" = "no" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test "$enable_shared" = yes && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[[4-9]]*)
+    if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+      test "$enable_shared" = yes && enable_static=no
+    fi
+    ;;
+  esac
+  AC_MSG_RESULT([$enable_shared])
+
+  AC_MSG_CHECKING([whether to build static libraries])
+  # Make sure either enable_shared or enable_static is yes.
+  test "$enable_shared" = yes || enable_static=yes
+  AC_MSG_RESULT([$enable_static])
+
+  _LT_CONFIG($1)
+fi
+AC_LANG_POP
+CC="$lt_save_CC"
+])# _LT_LANG_C_CONFIG
+
+
+# _LT_LANG_CXX_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a C++ compiler are suitably
+# defined.  These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_CXX_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
+    ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
+    (test "X$CXX" != "Xg++"))) ; then
+  AC_PROG_CXXCPP
+else
+  _lt_caught_CXX_error=yes
+fi
+
+AC_LANG_PUSH(C++)
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(compiler_needs_object, $1)=no
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_caught_CXX_error" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_CFLAGS=$CFLAGS
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  CFLAGS=$CXXFLAGS
+  compiler=$CC
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test "$GXX" = yes; then
+      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
+    else
+      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+    fi
+
+    if test "$GXX" = yes; then
+      # Set up default GNU C++ configuration
+
+      LT_PATH_LD
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test "$with_gnu_ld" = yes; then
+        _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='${wl}'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+        else
+          _LT_TAGVAR(whole_archive_flag_spec, $1)=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+    _LT_TAGVAR(ld_shlibs, $1)=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+      aix[[4-9]]*)
+        if test "$host_cpu" = ia64; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=""
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # need to do runtime linking.
+          case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        _LT_TAGVAR(archive_cmds, $1)=''
+        _LT_TAGVAR(hardcode_direct, $1)=yes
+        _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+        _LT_TAGVAR(link_all_deplibs, $1)=yes
+        _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
+
+        if test "$GXX" = yes; then
+          case $host_os in aix4.[[012]]|aix4.[[012]].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    _LT_TAGVAR(hardcode_direct, $1)=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag="$shared_flag "'${wl}-G'
+	  fi
+        else
+          # not using gcc
+          if test "$host_cpu" = ia64; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test "$aix_use_runtimelinking" = yes; then
+	      shared_flag='${wl}-G'
+	    else
+	      shared_flag='${wl}-bM:SRE'
+	    fi
+          fi
+        fi
+
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        _LT_TAGVAR(always_export_symbols, $1)=yes
+        if test "$aix_use_runtimelinking" = yes; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          _LT_SYS_MODULE_PATH_AIX([$1])
+          _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+
+          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+        else
+          if test "$host_cpu" = ia64; then
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
+	    _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    _LT_SYS_MODULE_PATH_AIX([$1])
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
+	    _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
+	    if test "$with_gnu_ld" = yes; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+	    fi
+	    _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	    # This is similar to how AIX traditionally builds its shared
+	    # libraries.
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	else
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+	case $GXX,$cc_basename in
+	,cl* | no,cl*)
+	  # Native MSVC
+	  # hardcode_libdir_flag_spec is actually meaningless, as there is
+	  # no search path for DLLs.
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  _LT_TAGVAR(always_export_symbols, $1)=yes
+	  _LT_TAGVAR(file_list_spec, $1)='@'
+	  # Tell ltmain to make .lib files, not .a files.
+	  libext=lib
+	  # Tell ltmain to make .dll files, not .so files.
+	  shrext_cmds=".dll"
+	  # FIXME: Setting linknames here is a bad hack.
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	      $SED -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
+	    else
+	      $SED -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
+	    fi~
+	    $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+	    linknames='
+	  # The linker will not automatically build a static lib if we build a DLL.
+	  # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	  # Don't use ranlib
+	  _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+	  _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+	    lt_tool_outputfile="@TOOL_OUTPUT@"~
+	    case $lt_outputfile in
+	      *.exe|*.EXE) ;;
+	      *)
+		lt_outputfile="$lt_outputfile.exe"
+		lt_tool_outputfile="$lt_tool_outputfile.exe"
+		;;
+	    esac~
+	    func_to_tool_file "$lt_outputfile"~
+	    if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
+	      $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+	      $RM "$lt_outputfile.manifest";
+	    fi'
+	  ;;
+	*)
+	  # g++
+	  # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+	  # as there is no search path for DLLs.
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols'
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  _LT_TAGVAR(always_export_symbols, $1)=no
+	  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+
+	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	    # If the export-symbols file already is a .def file (1st line
+	    # is EXPORTS), use it as is; otherwise, prepend...
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	      cp $export_symbols $output_objdir/$soname.def;
+	    else
+	      echo EXPORTS > $output_objdir/$soname.def;
+	      cat $export_symbols >> $output_objdir/$soname.def;
+	    fi~
+	    $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	  else
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	  fi
+	  ;;
+	esac
+	;;
+      darwin* | rhapsody*)
+        _LT_DARWIN_LINKER_FEATURES($1)
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      freebsd[[12]]*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      freebsd-elf*)
+        _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        _LT_TAGVAR(ld_shlibs, $1)=yes
+        ;;
+
+      gnu*)
+        ;;
+
+      haiku*)
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        _LT_TAGVAR(link_all_deplibs, $1)=yes
+        ;;
+
+      hpux9*)
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+        _LT_TAGVAR(hardcode_direct, $1)=yes
+        _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            _LT_TAGVAR(ld_shlibs, $1)=no
+            ;;
+          aCC*)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test "$GXX" = yes; then
+              _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              _LT_TAGVAR(ld_shlibs, $1)=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test $with_gnu_ld = no; then
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+	  _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            _LT_TAGVAR(hardcode_direct, $1)=no
+            _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+            ;;
+          *)
+            _LT_TAGVAR(hardcode_direct, $1)=yes
+            _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test $with_gnu_ld = no; then
+	        case $host_cpu in
+	          hppa*64*)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      _LT_TAGVAR(ld_shlibs, $1)=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[[3-9]]*)
+	_LT_TAGVAR(hardcode_direct, $1)=no
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test "$with_gnu_ld" = no; then
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	      else
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib'
+	      fi
+	    fi
+	    _LT_TAGVAR(link_all_deplibs, $1)=yes
+	    ;;
+        esac
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+        _LT_TAGVAR(inherit_rpath, $1)=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*)
+	      _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+		$RANLIB $oldlib'
+	      _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    if test "x$supports_anon_versioning" = xyes; then
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+		cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+		echo "local: *; };" >> $output_objdir/$libname.ver~
+		$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+	      _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	      _LT_TAGVAR(compiler_needs_object, $1)=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        _LT_TAGVAR(ld_shlibs, $1)=yes
+	;;
+
+      openbsd2*)
+        # C++ shared libraries are fairly broken
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      openbsd*)
+	if test -f /usr/libexec/ld.so; then
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+		;;
+	      *)
+	        _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+	          echo "-hidden">> $lib.exp~
+	          $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~
+	          $RM $lib.exp'
+	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+		;;
+	    esac
+
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+	      case $host in
+	        osf3*)
+	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	        *)
+	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+	      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      _LT_TAGVAR(ld_shlibs, $1)=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
+	    _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag}  -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	      $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	    _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	    case $host_os in
+	      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands `-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    _LT_TAGVAR(link_all_deplibs, $1)=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -shared $pic_flag -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      else
+	        # g++ 2.7 appears to require `-G' NOT `-shared' on this
+	        # platform.
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      fi
+
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir'
+	      case $host_os in
+		solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+		*)
+		  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We can NOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	_LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+	_LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
+	_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+	_LT_TAGVAR(link_all_deplibs, $1)=yes
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~
+	      '"$_LT_TAGVAR(old_archive_cmds, $1)"
+	    _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~
+	      '"$_LT_TAGVAR(reload_cmds, $1)"
+	    ;;
+	  *)
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+    esac
+
+    AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+    test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+
+    _LT_TAGVAR(GCC, $1)="$GXX"
+    _LT_TAGVAR(LD, $1)="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_SYS_HIDDEN_LIBDEPS($1)
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test "$_lt_caught_CXX_error" != yes
+
+AC_LANG_POP
+])# _LT_LANG_CXX_CONFIG
+
+
+# _LT_FUNC_STRIPNAME_CNF
+# ----------------------
+# func_stripname_cnf prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+#
+# This function is identical to the (non-XSI) version of func_stripname,
+# except this one can be used by m4 code that may be executed by configure,
+# rather than the libtool script.
+m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl
+AC_REQUIRE([_LT_DECL_SED])
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])
+func_stripname_cnf ()
+{
+  case ${2} in
+  .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
+  *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+  esac
+} # func_stripname_cnf
+])# _LT_FUNC_STRIPNAME_CNF
+
+# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
+# ---------------------------------
+# Figure out "hidden" library dependencies from verbose
+# compiler output when linking a shared library.
+# Parse the compiler output and extract the necessary
+# objects, libraries and library flags.
+m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl
+# Dependencies to place before and after the object being linked:
+_LT_TAGVAR(predep_objects, $1)=
+_LT_TAGVAR(postdep_objects, $1)=
+_LT_TAGVAR(predeps, $1)=
+_LT_TAGVAR(postdeps, $1)=
+_LT_TAGVAR(compiler_lib_search_path, $1)=
+
+dnl we can't use the lt_simple_compile_test_code here,
+dnl because it contains code intended for an executable,
+dnl not a library.  It's possible we should let each
+dnl tag define a new lt_????_link_test_code variable,
+dnl but it's only used here...
+m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
+int a;
+void foo (void) { a = 0; }
+_LT_EOF
+], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
+      subroutine foo
+      implicit none
+      integer*4 a
+      a=0
+      return
+      end
+_LT_EOF
+], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
+      subroutine foo
+      implicit none
+      integer a
+      a=0
+      return
+      end
+_LT_EOF
+], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
+public class foo {
+  private int a;
+  public void bar (void) {
+    a = 0;
+  }
+};
+_LT_EOF
+])
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+esac
+
+dnl Parse the compiler output and extract the necessary
+dnl objects, libraries and library flags.
+if AC_TRY_EVAL(ac_compile); then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case ${prev}${p} in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test $p = "-L" ||
+          test $p = "-R"; then
+	 prev=$p
+	 continue
+       fi
+
+       # Expand the sysroot to ease extracting the directories later.
+       if test -z "$prev"; then
+         case $p in
+         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+         esac
+       fi
+       case $p in
+       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+       esac
+       if test "$pre_test_object_deps_done" = no; then
+	 case ${prev} in
+	 -L | -R)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
+	     _LT_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}"
+	   else
+	     _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$_LT_TAGVAR(postdeps, $1)"; then
+	   _LT_TAGVAR(postdeps, $1)="${prev}${p}"
+	 else
+	   _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} ${prev}${p}"
+	 fi
+       fi
+       prev=
+       ;;
+
+    *.lto.$objext) ;; # Ignore GCC LTO objects
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+	 if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
+	   _LT_TAGVAR(predep_objects, $1)="$p"
+	 else
+	   _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
+	 fi
+       else
+	 if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
+	   _LT_TAGVAR(postdep_objects, $1)="$p"
+	 else
+	   _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling $1 test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+m4_if([$1], [CXX],
+[case $host_os in
+interix[[3-9]]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  _LT_TAGVAR(predep_objects,$1)=
+  _LT_TAGVAR(postdep_objects,$1)=
+  _LT_TAGVAR(postdeps,$1)=
+  ;;
+
+linux*)
+  case `$CC -V 2>&1 | sed 5q` in
+  *Sun\ C*)
+    # Sun C++ 5.9
+
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    if test "$solaris_use_stlport4" != yes; then
+      _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+
+solaris*)
+  case $cc_basename in
+  CC* | sunCC*)
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    # Adding this requires a known-good setup of shared libraries for
+    # Sun compiler versions before 5.6, else PIC objects from an old
+    # archive will be linked into the output, leading to subtle bugs.
+    if test "$solaris_use_stlport4" != yes; then
+      _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+esac
+])
+
+case " $_LT_TAGVAR(postdeps, $1) " in
+*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
+esac
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=
+if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
+fi
+_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
+    [The directories searched by this compiler when creating a shared library])
+_LT_TAGDECL([], [predep_objects], [1],
+    [Dependencies to place before and after the objects being linked to
+    create a shared library])
+_LT_TAGDECL([], [postdep_objects], [1])
+_LT_TAGDECL([], [predeps], [1])
+_LT_TAGDECL([], [postdeps], [1])
+_LT_TAGDECL([], [compiler_lib_search_path], [1],
+    [The library search path used internally by the compiler when linking
+    a shared library])
+])# _LT_SYS_HIDDEN_LIBDEPS
+
+
+# _LT_LANG_F77_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a Fortran 77 compiler are
+# suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_F77_CONFIG],
+[AC_LANG_PUSH(Fortran 77)
+if test -z "$F77" || test "X$F77" = "Xno"; then
+  _lt_disable_F77=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for f77 test sources.
+ac_ext=f
+
+# Object file extension for compiled f77 test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the F77 compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_disable_F77" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="\
+      subroutine t
+      return
+      end
+"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code="\
+      program t
+      end
+"
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC="$CC"
+  lt_save_GCC=$GCC
+  lt_save_CFLAGS=$CFLAGS
+  CC=${F77-"f77"}
+  CFLAGS=$FFLAGS
+  compiler=$CC
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+  GCC=$G77
+  if test -n "$compiler"; then
+    AC_MSG_CHECKING([if libtool supports shared libraries])
+    AC_MSG_RESULT([$can_build_shared])
+
+    AC_MSG_CHECKING([whether to build shared libraries])
+    test "$can_build_shared" = "no" && enable_shared=no
+
+    # On AIX, shared libraries and static libraries use the same namespace, and
+    # are all built from PIC.
+    case $host_os in
+      aix3*)
+        test "$enable_shared" = yes && enable_static=no
+        if test -n "$RANLIB"; then
+          archive_cmds="$archive_cmds~\$RANLIB \$lib"
+          postinstall_cmds='$RANLIB $lib'
+        fi
+        ;;
+      aix[[4-9]]*)
+	if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+	  test "$enable_shared" = yes && enable_static=no
+	fi
+        ;;
+    esac
+    AC_MSG_RESULT([$enable_shared])
+
+    AC_MSG_CHECKING([whether to build static libraries])
+    # Make sure either enable_shared or enable_static is yes.
+    test "$enable_shared" = yes || enable_static=yes
+    AC_MSG_RESULT([$enable_static])
+
+    _LT_TAGVAR(GCC, $1)="$G77"
+    _LT_TAGVAR(LD, $1)="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  GCC=$lt_save_GCC
+  CC="$lt_save_CC"
+  CFLAGS="$lt_save_CFLAGS"
+fi # test "$_lt_disable_F77" != yes
+
+AC_LANG_POP
+])# _LT_LANG_F77_CONFIG
+
+
+# _LT_LANG_FC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for a Fortran compiler are
+# suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_FC_CONFIG],
+[AC_LANG_PUSH(Fortran)
+
+if test -z "$FC" || test "X$FC" = "Xno"; then
+  _lt_disable_FC=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_flag_spec_ld, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for fc test sources.
+ac_ext=${ac_fc_srcext-f}
+
+# Object file extension for compiled fc test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the FC compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_disable_FC" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="\
+      subroutine t
+      return
+      end
+"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code="\
+      program t
+      end
+"
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC="$CC"
+  lt_save_GCC=$GCC
+  lt_save_CFLAGS=$CFLAGS
+  CC=${FC-"f95"}
+  CFLAGS=$FCFLAGS
+  compiler=$CC
+  GCC=$ac_cv_fc_compiler_gnu
+
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+
+  if test -n "$compiler"; then
+    AC_MSG_CHECKING([if libtool supports shared libraries])
+    AC_MSG_RESULT([$can_build_shared])
+
+    AC_MSG_CHECKING([whether to build shared libraries])
+    test "$can_build_shared" = "no" && enable_shared=no
+
+    # On AIX, shared libraries and static libraries use the same namespace, and
+    # are all built from PIC.
+    case $host_os in
+      aix3*)
+        test "$enable_shared" = yes && enable_static=no
+        if test -n "$RANLIB"; then
+          archive_cmds="$archive_cmds~\$RANLIB \$lib"
+          postinstall_cmds='$RANLIB $lib'
+        fi
+        ;;
+      aix[[4-9]]*)
+	if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+	  test "$enable_shared" = yes && enable_static=no
+	fi
+        ;;
+    esac
+    AC_MSG_RESULT([$enable_shared])
+
+    AC_MSG_CHECKING([whether to build static libraries])
+    # Make sure either enable_shared or enable_static is yes.
+    test "$enable_shared" = yes || enable_static=yes
+    AC_MSG_RESULT([$enable_static])
+
+    _LT_TAGVAR(GCC, $1)="$ac_cv_fc_compiler_gnu"
+    _LT_TAGVAR(LD, $1)="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_SYS_HIDDEN_LIBDEPS($1)
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  GCC=$lt_save_GCC
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+fi # test "$_lt_disable_FC" != yes
+
+AC_LANG_POP
+])# _LT_LANG_FC_CONFIG
+
+
+# _LT_LANG_GCJ_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Java Compiler compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_GCJ_CONFIG],
+[AC_REQUIRE([LT_PROG_GCJ])dnl
+AC_LANG_SAVE
+
+# Source file extension for Java test sources.
+ac_ext=java
+
+# Object file extension for compiled Java test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="class foo {}"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GCJ-"gcj"}
+CFLAGS=$GCJFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)="$LD"
+_LT_CC_BASENAME([$compiler])
+
+# GCJ did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+
+  _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GCJ_CONFIG
+
+
+# _LT_LANG_RC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for the Windows resource compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_RC_CONFIG],
+[AC_REQUIRE([LT_PROG_RC])dnl
+AC_LANG_SAVE
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code="$lt_simple_compile_test_code"
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=
+CC=${RC-"windres"}
+CFLAGS=
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_CC_BASENAME([$compiler])
+_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+
+if test -n "$compiler"; then
+  :
+  _LT_CONFIG($1)
+fi
+
+GCC=$lt_save_GCC
+AC_LANG_RESTORE
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_RC_CONFIG
+
+
+# LT_PROG_GCJ
+# -----------
+AC_DEFUN([LT_PROG_GCJ],
+[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
+  [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
+    [AC_CHECK_TOOL(GCJ, gcj,)
+      test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
+      AC_SUBST(GCJFLAGS)])])[]dnl
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
+
+
+# LT_PROG_RC
+# ----------
+AC_DEFUN([LT_PROG_RC],
+[AC_CHECK_TOOL(RC, windres,)
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_RC], [])
+
+
+# _LT_DECL_EGREP
+# --------------
+# If we don't have a new enough Autoconf to choose the best grep
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_EGREP],
+[AC_REQUIRE([AC_PROG_EGREP])dnl
+AC_REQUIRE([AC_PROG_FGREP])dnl
+test -z "$GREP" && GREP=grep
+_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
+_LT_DECL([], [EGREP], [1], [An ERE matcher])
+_LT_DECL([], [FGREP], [1], [A literal string matcher])
+dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
+AC_SUBST([GREP])
+])
+
+
+# _LT_DECL_OBJDUMP
+# --------------
+# If we don't have a new enough Autoconf to choose the best objdump
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_OBJDUMP],
+[AC_CHECK_TOOL(OBJDUMP, objdump, false)
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
+AC_SUBST([OBJDUMP])
+])
+
+# _LT_DECL_DLLTOOL
+# ----------------
+# Ensure DLLTOOL variable is set.
+m4_defun([_LT_DECL_DLLTOOL],
+[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])
+AC_SUBST([DLLTOOL])
+])
+
+# _LT_DECL_SED
+# ------------
+# Check for a fully-functional sed program, that truncates
+# as few characters as possible.  Prefer GNU sed if found.
+m4_defun([_LT_DECL_SED],
+[AC_PROG_SED
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
+_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
+    [Sed that helps us avoid accidentally triggering echo(1) options like -n])
+])# _LT_DECL_SED
+
+m4_ifndef([AC_PROG_SED], [
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_SED.  When it is available in   #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+
+m4_defun([AC_PROG_SED],
+[AC_MSG_CHECKING([for a sed that does not truncate output])
+AC_CACHE_VAL(lt_cv_path_SED,
+[# Loop through the user's path and test for sed and gsed.
+# Then use that list of sed's as ones to test for truncation.
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for lt_ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
+        lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
+      fi
+    done
+  done
+done
+IFS=$as_save_IFS
+lt_ac_max=0
+lt_ac_count=0
+# Add /usr/xpg4/bin/sed as it is typically found on Solaris
+# along with /bin/sed that truncates output.
+for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
+  test ! -f $lt_ac_sed && continue
+  cat /dev/null > conftest.in
+  lt_ac_count=0
+  echo $ECHO_N "0123456789$ECHO_C" >conftest.in
+  # Check for GNU sed and select it if it is found.
+  if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
+    lt_cv_path_SED=$lt_ac_sed
+    break
+  fi
+  while true; do
+    cat conftest.in conftest.in >conftest.tmp
+    mv conftest.tmp conftest.in
+    cp conftest.in conftest.nl
+    echo >>conftest.nl
+    $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
+    cmp -s conftest.out conftest.nl || break
+    # 10000 chars as input seems more than enough
+    test $lt_ac_count -gt 10 && break
+    lt_ac_count=`expr $lt_ac_count + 1`
+    if test $lt_ac_count -gt $lt_ac_max; then
+      lt_ac_max=$lt_ac_count
+      lt_cv_path_SED=$lt_ac_sed
+    fi
+  done
+done
+])
+SED=$lt_cv_path_SED
+AC_SUBST([SED])
+AC_MSG_RESULT([$SED])
+])#AC_PROG_SED
+])#m4_ifndef
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_SED], [])
+
+
+# _LT_CHECK_SHELL_FEATURES
+# ------------------------
+# Find out whether the shell is Bourne or XSI compatible,
+# or has some other useful features.
+m4_defun([_LT_CHECK_SHELL_FEATURES],
+[AC_MSG_CHECKING([whether the shell understands some XSI constructs])
+# Try some XSI features
+xsi_shell=no
+( _lt_dummy="a/b/c"
+  test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \
+      = c,a/b,b/c, \
+    && eval 'test $(( 1 + 1 )) -eq 2 \
+    && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
+  && xsi_shell=yes
+AC_MSG_RESULT([$xsi_shell])
+_LT_CONFIG_LIBTOOL_INIT([xsi_shell='$xsi_shell'])
+
+AC_MSG_CHECKING([whether the shell understands "+="])
+lt_shell_append=no
+( foo=bar; set foo baz; eval "$[1]+=\$[2]" && test "$foo" = barbaz ) \
+    >/dev/null 2>&1 \
+  && lt_shell_append=yes
+AC_MSG_RESULT([$lt_shell_append])
+_LT_CONFIG_LIBTOOL_INIT([lt_shell_append='$lt_shell_append'])
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
+_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
+])# _LT_CHECK_SHELL_FEATURES
+
+
+# _LT_PROG_FUNCTION_REPLACE (FUNCNAME, REPLACEMENT-BODY)
+# ------------------------------------------------------
+# In `$cfgfile', look for function FUNCNAME delimited by `^FUNCNAME ()$' and
+# '^} FUNCNAME ', and replace its body with REPLACEMENT-BODY.
+m4_defun([_LT_PROG_FUNCTION_REPLACE],
+[dnl {
+sed -e '/^$1 ()$/,/^} # $1 /c\
+$1 ()\
+{\
+m4_bpatsubsts([$2], [$], [\\], [^\([	 ]\)], [\\\1])
+} # Extended-shell $1 implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+])
+
+
+# _LT_PROG_REPLACE_SHELLFNS
+# -------------------------
+# Replace existing portable implementations of several shell functions with
+# equivalent extended shell implementations where those features are available..
+m4_defun([_LT_PROG_REPLACE_SHELLFNS],
+[if test x"$xsi_shell" = xyes; then
+  _LT_PROG_FUNCTION_REPLACE([func_dirname], [dnl
+    case ${1} in
+      */*) func_dirname_result="${1%/*}${2}" ;;
+      *  ) func_dirname_result="${3}" ;;
+    esac])
+
+  _LT_PROG_FUNCTION_REPLACE([func_basename], [dnl
+    func_basename_result="${1##*/}"])
+
+  _LT_PROG_FUNCTION_REPLACE([func_dirname_and_basename], [dnl
+    case ${1} in
+      */*) func_dirname_result="${1%/*}${2}" ;;
+      *  ) func_dirname_result="${3}" ;;
+    esac
+    func_basename_result="${1##*/}"])
+
+  _LT_PROG_FUNCTION_REPLACE([func_stripname], [dnl
+    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+    # positional parameters, so assign one to ordinary parameter first.
+    func_stripname_result=${3}
+    func_stripname_result=${func_stripname_result#"${1}"}
+    func_stripname_result=${func_stripname_result%"${2}"}])
+
+  _LT_PROG_FUNCTION_REPLACE([func_split_long_opt], [dnl
+    func_split_long_opt_name=${1%%=*}
+    func_split_long_opt_arg=${1#*=}])
+
+  _LT_PROG_FUNCTION_REPLACE([func_split_short_opt], [dnl
+    func_split_short_opt_arg=${1#??}
+    func_split_short_opt_name=${1%"$func_split_short_opt_arg"}])
+
+  _LT_PROG_FUNCTION_REPLACE([func_lo2o], [dnl
+    case ${1} in
+      *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
+      *)    func_lo2o_result=${1} ;;
+    esac])
+
+  _LT_PROG_FUNCTION_REPLACE([func_xform], [    func_xform_result=${1%.*}.lo])
+
+  _LT_PROG_FUNCTION_REPLACE([func_arith], [    func_arith_result=$(( $[*] ))])
+
+  _LT_PROG_FUNCTION_REPLACE([func_len], [    func_len_result=${#1}])
+fi
+
+if test x"$lt_shell_append" = xyes; then
+  _LT_PROG_FUNCTION_REPLACE([func_append], [    eval "${1}+=\\${2}"])
+
+  _LT_PROG_FUNCTION_REPLACE([func_append_quoted], [dnl
+    func_quote_for_eval "${2}"
+dnl m4 expansion turns \\\\ into \\, and then the shell eval turns that into \
+    eval "${1}+=\\\\ \\$func_quote_for_eval_result"])
+
+  # Save a `func_append' function call where possible by direct use of '+='
+  sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \
+    && mv -f "$cfgfile.tmp" "$cfgfile" \
+      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+  test 0 -eq $? || _lt_function_replace_fail=:
+else
+  # Save a `func_append' function call even when '+=' is not available
+  sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \
+    && mv -f "$cfgfile.tmp" "$cfgfile" \
+      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+  test 0 -eq $? || _lt_function_replace_fail=:
+fi
+
+if test x"$_lt_function_replace_fail" = x":"; then
+  AC_MSG_WARN([Unable to substitute extended shell functions in $ofile])
+fi
+])
+
+# _LT_PATH_CONVERSION_FUNCTIONS
+# -----------------------------
+# Determine which file name conversion functions should be used by
+# func_to_host_file (and, implicitly, by func_to_host_path).  These are needed
+# for certain cross-compile configurations and native mingw.
+m4_defun([_LT_PATH_CONVERSION_FUNCTIONS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_MSG_CHECKING([how to convert $build file names to $host format])
+AC_CACHE_VAL(lt_cv_to_host_file_cmd,
+[case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+])
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+AC_MSG_RESULT([$lt_cv_to_host_file_cmd])
+_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd],
+         [0], [convert $build file names to $host format])dnl
+
+AC_MSG_CHECKING([how to convert $build file names to toolchain format])
+AC_CACHE_VAL(lt_cv_to_tool_file_cmd,
+[#assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+])
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+AC_MSG_RESULT([$lt_cv_to_tool_file_cmd])
+_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd],
+         [0], [convert $build files to toolchain format])dnl
+])# _LT_PATH_CONVERSION_FUNCTIONS
+
+# Helper functions for option handling.                    -*- Autoconf -*-
+#
+#   Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation,
+#   Inc.
+#   Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 7 ltoptions.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
+
+
+# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
+# ------------------------------------------
+m4_define([_LT_MANGLE_OPTION],
+[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
+
+
+# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
+# ---------------------------------------
+# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
+# matching handler defined, dispatch to it.  Other OPTION-NAMEs are
+# saved as a flag.
+m4_define([_LT_SET_OPTION],
+[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
+m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
+        _LT_MANGLE_DEFUN([$1], [$2]),
+    [m4_warning([Unknown $1 option `$2'])])[]dnl
+])
+
+
+# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
+# ------------------------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+m4_define([_LT_IF_OPTION],
+[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
+
+
+# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
+# -------------------------------------------------------
+# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
+# are set.
+m4_define([_LT_UNLESS_OPTIONS],
+[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+	    [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
+		      [m4_define([$0_found])])])[]dnl
+m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
+])[]dnl
+])
+
+
+# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
+# ----------------------------------------
+# OPTION-LIST is a space-separated list of Libtool options associated
+# with MACRO-NAME.  If any OPTION has a matching handler declared with
+# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
+# the unknown option and exit.
+m4_defun([_LT_SET_OPTIONS],
+[# Set options
+m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+    [_LT_SET_OPTION([$1], _LT_Option)])
+
+m4_if([$1],[LT_INIT],[
+  dnl
+  dnl Simply set some default values (i.e off) if boolean options were not
+  dnl specified:
+  _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
+  ])
+  _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
+  ])
+  dnl
+  dnl If no reference was made to various pairs of opposing options, then
+  dnl we run the default mode handler for the pair.  For example, if neither
+  dnl `shared' nor `disable-shared' was passed, we enable building of shared
+  dnl archives by default:
+  _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
+  _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
+  		   [_LT_ENABLE_FAST_INSTALL])
+  ])
+])# _LT_SET_OPTIONS
+
+
+
+# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
+# -----------------------------------------
+m4_define([_LT_MANGLE_DEFUN],
+[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
+
+
+# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
+# -----------------------------------------------
+m4_define([LT_OPTION_DEFINE],
+[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
+])# LT_OPTION_DEFINE
+
+
+# dlopen
+# ------
+LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
+])
+
+AU_DEFUN([AC_LIBTOOL_DLOPEN],
+[_LT_SET_OPTION([LT_INIT], [dlopen])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the `dlopen' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
+
+
+# win32-dll
+# ---------
+# Declare package support for building win32 dll's.
+LT_OPTION_DEFINE([LT_INIT], [win32-dll],
+[enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+  AC_CHECK_TOOL(AS, as, false)
+  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+  AC_CHECK_TOOL(OBJDUMP, objdump, false)
+  ;;
+esac
+
+test -z "$AS" && AS=as
+_LT_DECL([], [AS],      [1], [Assembler program])dnl
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
+])# win32-dll
+
+AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+_LT_SET_OPTION([LT_INIT], [win32-dll])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the `win32-dll' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
+
+
+# _LT_ENABLE_SHARED([DEFAULT])
+# ----------------------------
+# implement the --enable-shared flag, and supports the `shared' and
+# `disable-shared' LT_INIT options.
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+m4_define([_LT_ENABLE_SHARED],
+[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([shared],
+    [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
+	[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
+
+    _LT_DECL([build_libtool_libs], [enable_shared], [0],
+	[Whether or not to build shared libraries])
+])# _LT_ENABLE_SHARED
+
+LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
+])
+
+AC_DEFUN([AC_DISABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], [disable-shared])
+])
+
+AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
+AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_SHARED], [])
+dnl AC_DEFUN([AM_DISABLE_SHARED], [])
+
+
+
+# _LT_ENABLE_STATIC([DEFAULT])
+# ----------------------------
+# implement the --enable-static flag, and support the `static' and
+# `disable-static' LT_INIT options.
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+m4_define([_LT_ENABLE_STATIC],
+[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([static],
+    [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
+	[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
+
+    _LT_DECL([build_old_libs], [enable_static], [0],
+	[Whether or not to build static libraries])
+])# _LT_ENABLE_STATIC
+
+LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
+])
+
+AC_DEFUN([AC_DISABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], [disable-static])
+])
+
+AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
+AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_STATIC], [])
+dnl AC_DEFUN([AM_DISABLE_STATIC], [])
+
+
+
+# _LT_ENABLE_FAST_INSTALL([DEFAULT])
+# ----------------------------------
+# implement the --enable-fast-install flag, and support the `fast-install'
+# and `disable-fast-install' LT_INIT options.
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+m4_define([_LT_ENABLE_FAST_INSTALL],
+[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([fast-install],
+    [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
+    [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
+
+_LT_DECL([fast_install], [enable_fast_install], [0],
+	 [Whether or not to optimize for fast installation])dnl
+])# _LT_ENABLE_FAST_INSTALL
+
+LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
+
+# Old names:
+AU_DEFUN([AC_ENABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the `fast-install' option into LT_INIT's first parameter.])
+])
+
+AU_DEFUN([AC_DISABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the `disable-fast-install' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
+dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
+
+
+# _LT_WITH_PIC([MODE])
+# --------------------
+# implement the --with-pic flag, and support the `pic-only' and `no-pic'
+# LT_INIT options.
+# MODE is either `yes' or `no'.  If omitted, it defaults to `both'.
+m4_define([_LT_WITH_PIC],
+[AC_ARG_WITH([pic],
+    [AS_HELP_STRING([--with-pic],
+	[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
+    [pic_mode="$withval"],
+    [pic_mode=default])
+
+test -z "$pic_mode" && pic_mode=m4_default([$1], [default])
+
+_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
+])# _LT_WITH_PIC
+
+LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
+
+# Old name:
+AU_DEFUN([AC_LIBTOOL_PICMODE],
+[_LT_SET_OPTION([LT_INIT], [pic-only])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the `pic-only' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
+
+
+m4_define([_LTDL_MODE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
+		 [m4_define([_LTDL_MODE], [nonrecursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [recursive],
+		 [m4_define([_LTDL_MODE], [recursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [subproject],
+		 [m4_define([_LTDL_MODE], [subproject])])
+
+m4_define([_LTDL_TYPE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [installable],
+		 [m4_define([_LTDL_TYPE], [installable])])
+LT_OPTION_DEFINE([LTDL_INIT], [convenience],
+		 [m4_define([_LTDL_TYPE], [convenience])])
+
+# ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
+#
+# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
+# Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 6 ltsugar.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
+
+
+# lt_join(SEP, ARG1, [ARG2...])
+# -----------------------------
+# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
+# associated separator.
+# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
+# versions in m4sugar had bugs.
+m4_define([lt_join],
+[m4_if([$#], [1], [],
+       [$#], [2], [[$2]],
+       [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
+m4_define([_lt_join],
+[m4_if([$#$2], [2], [],
+       [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
+
+
+# lt_car(LIST)
+# lt_cdr(LIST)
+# ------------
+# Manipulate m4 lists.
+# These macros are necessary as long as will still need to support
+# Autoconf-2.59 which quotes differently.
+m4_define([lt_car], [[$1]])
+m4_define([lt_cdr],
+[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
+       [$#], 1, [],
+       [m4_dquote(m4_shift($@))])])
+m4_define([lt_unquote], $1)
+
+
+# lt_append(MACRO-NAME, STRING, [SEPARATOR])
+# ------------------------------------------
+# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'.
+# Note that neither SEPARATOR nor STRING are expanded; they are appended
+# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
+# No SEPARATOR is output if MACRO-NAME was previously undefined (different
+# than defined and empty).
+#
+# This macro is needed until we can rely on Autoconf 2.62, since earlier
+# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
+m4_define([lt_append],
+[m4_define([$1],
+	   m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
+
+
+
+# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
+# ----------------------------------------------------------
+# Produce a SEP delimited list of all paired combinations of elements of
+# PREFIX-LIST with SUFFIX1 through SUFFIXn.  Each element of the list
+# has the form PREFIXmINFIXSUFFIXn.
+# Needed until we can rely on m4_combine added in Autoconf 2.62.
+m4_define([lt_combine],
+[m4_if(m4_eval([$# > 3]), [1],
+       [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
+[[m4_foreach([_Lt_prefix], [$2],
+	     [m4_foreach([_Lt_suffix],
+		]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
+	[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
+
+
+# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
+# -----------------------------------------------------------------------
+# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
+# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
+m4_define([lt_if_append_uniq],
+[m4_ifdef([$1],
+	  [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
+		 [lt_append([$1], [$2], [$3])$4],
+		 [$5])],
+	  [lt_append([$1], [$2], [$3])$4])])
+
+
+# lt_dict_add(DICT, KEY, VALUE)
+# -----------------------------
+m4_define([lt_dict_add],
+[m4_define([$1($2)], [$3])])
+
+
+# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
+# --------------------------------------------
+m4_define([lt_dict_add_subkey],
+[m4_define([$1($2:$3)], [$4])])
+
+
+# lt_dict_fetch(DICT, KEY, [SUBKEY])
+# ----------------------------------
+m4_define([lt_dict_fetch],
+[m4_ifval([$3],
+	m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
+    m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
+
+
+# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
+# -----------------------------------------------------------------
+m4_define([lt_if_dict_fetch],
+[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
+	[$5],
+    [$6])])
+
+
+# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
+# --------------------------------------------------------------
+m4_define([lt_dict_filter],
+[m4_if([$5], [], [],
+  [lt_join(m4_quote(m4_default([$4], [[, ]])),
+           lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
+		      [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
+])
+
+# ltversion.m4 -- version numbers			-*- Autoconf -*-
+#
+#   Copyright (C) 2004 Free Software Foundation, Inc.
+#   Written by Scott James Remnant, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# @configure_input@
+
+# serial 3293 ltversion.m4
+# This file is part of GNU Libtool
+
+m4_define([LT_PACKAGE_VERSION], [2.4])
+m4_define([LT_PACKAGE_REVISION], [1.3293])
+
+AC_DEFUN([LTVERSION_VERSION],
+[macro_version='2.4'
+macro_revision='1.3293'
+_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
+_LT_DECL(, macro_revision, 0)
+])
+
+# lt~obsolete.m4 -- aclocal satisfying obsolete definitions.    -*-Autoconf-*-
+#
+#   Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
+#   Written by Scott James Remnant, 2004.
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 5 lt~obsolete.m4
+
+# These exist entirely to fool aclocal when bootstrapping libtool.
+#
+# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN)
+# which have later been changed to m4_define as they aren't part of the
+# exported API, or moved to Autoconf or Automake where they belong.
+#
+# The trouble is, aclocal is a bit thick.  It'll see the old AC_DEFUN
+# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
+# using a macro with the same name in our local m4/libtool.m4 it'll
+# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
+# and doesn't know about Autoconf macros at all.)
+#
+# So we provide this file, which has a silly filename so it's always
+# included after everything else.  This provides aclocal with the
+# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
+# because those macros already exist, or will be overwritten later.
+# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. 
+#
+# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
+# Yes, that means every name once taken will need to remain here until
+# we give up compatibility with versions before 1.7, at which point
+# we need to keep only those names which we still refer to.
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
+
+m4_ifndef([AC_LIBTOOL_LINKER_OPTION],	[AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
+m4_ifndef([AC_PROG_EGREP],		[AC_DEFUN([AC_PROG_EGREP])])
+m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH],	[AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_AC_SHELL_INIT],		[AC_DEFUN([_LT_AC_SHELL_INIT])])
+m4_ifndef([_LT_AC_SYS_LIBPATH_AIX],	[AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
+m4_ifndef([_LT_PROG_LTMAIN],		[AC_DEFUN([_LT_PROG_LTMAIN])])
+m4_ifndef([_LT_AC_TAGVAR],		[AC_DEFUN([_LT_AC_TAGVAR])])
+m4_ifndef([AC_LTDL_ENABLE_INSTALL],	[AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
+m4_ifndef([AC_LTDL_PREOPEN],		[AC_DEFUN([AC_LTDL_PREOPEN])])
+m4_ifndef([_LT_AC_SYS_COMPILER],	[AC_DEFUN([_LT_AC_SYS_COMPILER])])
+m4_ifndef([_LT_AC_LOCK],		[AC_DEFUN([_LT_AC_LOCK])])
+m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE],	[AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
+m4_ifndef([_LT_AC_TRY_DLOPEN_SELF],	[AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
+m4_ifndef([AC_LIBTOOL_PROG_CC_C_O],	[AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
+m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
+m4_ifndef([AC_LIBTOOL_OBJDIR],		[AC_DEFUN([AC_LIBTOOL_OBJDIR])])
+m4_ifndef([AC_LTDL_OBJDIR],		[AC_DEFUN([AC_LTDL_OBJDIR])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
+m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP],	[AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
+m4_ifndef([AC_PATH_MAGIC],		[AC_DEFUN([AC_PATH_MAGIC])])
+m4_ifndef([AC_PROG_LD_GNU],		[AC_DEFUN([AC_PROG_LD_GNU])])
+m4_ifndef([AC_PROG_LD_RELOAD_FLAG],	[AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
+m4_ifndef([AC_DEPLIBS_CHECK_METHOD],	[AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
+m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS],	[AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
+m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP],	[AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
+m4_ifndef([LT_AC_PROG_EGREP],		[AC_DEFUN([LT_AC_PROG_EGREP])])
+m4_ifndef([LT_AC_PROG_SED],		[AC_DEFUN([LT_AC_PROG_SED])])
+m4_ifndef([_LT_CC_BASENAME],		[AC_DEFUN([_LT_CC_BASENAME])])
+m4_ifndef([_LT_COMPILER_BOILERPLATE],	[AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
+m4_ifndef([_LT_LINKER_BOILERPLATE],	[AC_DEFUN([_LT_LINKER_BOILERPLATE])])
+m4_ifndef([_AC_PROG_LIBTOOL],		[AC_DEFUN([_AC_PROG_LIBTOOL])])
+m4_ifndef([AC_LIBTOOL_SETUP],		[AC_DEFUN([AC_LIBTOOL_SETUP])])
+m4_ifndef([_LT_AC_CHECK_DLFCN],		[AC_DEFUN([_LT_AC_CHECK_DLFCN])])
+m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER],	[AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
+m4_ifndef([_LT_AC_TAGCONFIG],		[AC_DEFUN([_LT_AC_TAGCONFIG])])
+m4_ifndef([AC_DISABLE_FAST_INSTALL],	[AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
+m4_ifndef([_LT_AC_LANG_CXX],		[AC_DEFUN([_LT_AC_LANG_CXX])])
+m4_ifndef([_LT_AC_LANG_F77],		[AC_DEFUN([_LT_AC_LANG_F77])])
+m4_ifndef([_LT_AC_LANG_GCJ],		[AC_DEFUN([_LT_AC_LANG_GCJ])])
+m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
+m4_ifndef([_LT_AC_LANG_C_CONFIG],	[AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
+m4_ifndef([_LT_AC_LANG_CXX_CONFIG],	[AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
+m4_ifndef([_LT_AC_LANG_F77_CONFIG],	[AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
+m4_ifndef([_LT_AC_LANG_GCJ_CONFIG],	[AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
+m4_ifndef([_LT_AC_LANG_RC_CONFIG],	[AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
+m4_ifndef([AC_LIBTOOL_CONFIG],		[AC_DEFUN([AC_LIBTOOL_CONFIG])])
+m4_ifndef([_LT_AC_FILE_LTDLL_C],	[AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
+m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS],	[AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])])
+m4_ifndef([_LT_AC_PROG_CXXCPP],		[AC_DEFUN([_LT_AC_PROG_CXXCPP])])
+m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS],	[AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])])
+m4_ifndef([_LT_PROG_ECHO_BACKSLASH],	[AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_PROG_F77],		[AC_DEFUN([_LT_PROG_F77])])
+m4_ifndef([_LT_PROG_FC],		[AC_DEFUN([_LT_PROG_FC])])
+m4_ifndef([_LT_PROG_CXX],		[AC_DEFUN([_LT_PROG_CXX])])
+
+# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_AUTOMAKE_VERSION(VERSION)
+# ----------------------------
+# Automake X.Y traces this macro to ensure aclocal.m4 has been
+# generated from the m4 files accompanying Automake X.Y.
+# (This private macro should not be called outside this file.)
+AC_DEFUN([AM_AUTOMAKE_VERSION],
+[am__api_version='1.11'
+dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
+dnl require some minimum version.  Point them to the right macro.
+m4_if([$1], [1.11.1], [],
+      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
+])
+
+# _AM_AUTOCONF_VERSION(VERSION)
+# -----------------------------
+# aclocal traces this macro to find the Autoconf version.
+# This is a private macro too.  Using m4_define simplifies
+# the logic in aclocal, which can simply ignore this definition.
+m4_define([_AM_AUTOCONF_VERSION], [])
+
+# AM_SET_CURRENT_AUTOMAKE_VERSION
+# -------------------------------
+# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
+# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
+AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
+[AM_AUTOMAKE_VERSION([1.11.1])dnl
+m4_ifndef([AC_AUTOCONF_VERSION],
+  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
+_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
+
+# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
+
+# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
+# $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
+# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
+#
+# Of course, Automake must honor this variable whenever it calls a
+# tool from the auxiliary directory.  The problem is that $srcdir (and
+# therefore $ac_aux_dir as well) can be either absolute or relative,
+# depending on how configure is run.  This is pretty annoying, since
+# it makes $ac_aux_dir quite unusable in subdirectories: in the top
+# source directory, any form will work fine, but in subdirectories a
+# relative path needs to be adjusted first.
+#
+# $ac_aux_dir/missing
+#    fails when called from a subdirectory if $ac_aux_dir is relative
+# $top_srcdir/$ac_aux_dir/missing
+#    fails if $ac_aux_dir is absolute,
+#    fails when called from a subdirectory in a VPATH build with
+#          a relative $ac_aux_dir
+#
+# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
+# are both prefixed by $srcdir.  In an in-source build this is usually
+# harmless because $srcdir is `.', but things will broke when you
+# start a VPATH build or use an absolute $srcdir.
+#
+# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
+# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
+#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
+# and then we would define $MISSING as
+#   MISSING="\${SHELL} $am_aux_dir/missing"
+# This will work as long as MISSING is not called from configure, because
+# unfortunately $(top_srcdir) has no meaning in configure.
+# However there are other variables, like CC, which are often used in
+# configure, and could therefore not use this "fixed" $ac_aux_dir.
+#
+# Another solution, used here, is to always expand $ac_aux_dir to an
+# absolute PATH.  The drawback is that using absolute paths prevent a
+# configured tree to be moved without reconfiguration.
+
+AC_DEFUN([AM_AUX_DIR_EXPAND],
+[dnl Rely on autoconf to set up CDPATH properly.
+AC_PREREQ([2.50])dnl
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+])
+
+# AM_CONDITIONAL                                            -*- Autoconf -*-
+
+# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006, 2008
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 9
+
+# AM_CONDITIONAL(NAME, SHELL-CONDITION)
+# -------------------------------------
+# Define a conditional.
+AC_DEFUN([AM_CONDITIONAL],
+[AC_PREREQ(2.52)dnl
+ ifelse([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
+	[$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
+AC_SUBST([$1_TRUE])dnl
+AC_SUBST([$1_FALSE])dnl
+_AM_SUBST_NOTMAKE([$1_TRUE])dnl
+_AM_SUBST_NOTMAKE([$1_FALSE])dnl
+m4_define([_AM_COND_VALUE_$1], [$2])dnl
+if $2; then
+  $1_TRUE=
+  $1_FALSE='#'
+else
+  $1_TRUE='#'
+  $1_FALSE=
+fi
+AC_CONFIG_COMMANDS_PRE(
+[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
+  AC_MSG_ERROR([[conditional "$1" was never defined.
+Usually this means the macro was only invoked conditionally.]])
+fi])])
+
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 10
+
+# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
+# written in clear, in which case automake, when reading aclocal.m4,
+# will think it sees a *use*, and therefore will trigger all it's
+# C support machinery.  Also note that it means that autoscan, seeing
+# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
+
+
+# _AM_DEPENDENCIES(NAME)
+# ----------------------
+# See how the compiler implements dependency checking.
+# NAME is "CC", "CXX", "GCJ", or "OBJC".
+# We try a few techniques and use that to set a single cache variable.
+#
+# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
+# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
+# dependency, and given that the user is not expected to run this macro,
+# just rely on AC_PROG_CC.
+AC_DEFUN([_AM_DEPENDENCIES],
+[AC_REQUIRE([AM_SET_DEPDIR])dnl
+AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
+AC_REQUIRE([AM_MAKE_INCLUDE])dnl
+AC_REQUIRE([AM_DEP_TRACK])dnl
+
+ifelse([$1], CC,   [depcc="$CC"   am_compiler_list=],
+       [$1], CXX,  [depcc="$CXX"  am_compiler_list=],
+       [$1], OBJC, [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
+       [$1], UPC,  [depcc="$UPC"  am_compiler_list=],
+       [$1], GCJ,  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
+                   [depcc="$$1"   am_compiler_list=])
+
+AC_CACHE_CHECK([dependency style of $depcc],
+               [am_cv_$1_dependencies_compiler_type],
+[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_$1_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
+  fi
+  am__universal=false
+  m4_case([$1], [CC],
+    [case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac],
+    [CXX],
+    [case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac])
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+      # Solaris 8's {/usr,}/bin/sh.
+      touch sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvisualcpp | msvcmsys)
+      # This compiler won't grok `-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_$1_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_$1_dependencies_compiler_type=none
+fi
+])
+AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
+AM_CONDITIONAL([am__fastdep$1], [
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
+])
+
+
+# AM_SET_DEPDIR
+# -------------
+# Choose a directory name for dependency files.
+# This macro is AC_REQUIREd in _AM_DEPENDENCIES
+AC_DEFUN([AM_SET_DEPDIR],
+[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
+AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
+])
+
+
+# AM_DEP_TRACK
+# ------------
+AC_DEFUN([AM_DEP_TRACK],
+[AC_ARG_ENABLE(dependency-tracking,
+[  --disable-dependency-tracking  speeds up one-time build
+  --enable-dependency-tracking   do not reject slow dependency extractors])
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+fi
+AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
+AC_SUBST([AMDEPBACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
+])
+
+# Generate code to set up dependency tracking.              -*- Autoconf -*-
+
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+#serial 5
+
+# _AM_OUTPUT_DEPENDENCY_COMMANDS
+# ------------------------------
+AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
+[{
+  # Autoconf 2.62 quotes --file arguments for eval, but not when files
+  # are listed without --file.  Let's play safe and only enable the eval
+  # if we detect the quoting.
+  case $CONFIG_FILES in
+  *\'*) eval set x "$CONFIG_FILES" ;;
+  *)   set x $CONFIG_FILES ;;
+  esac
+  shift
+  for mf
+  do
+    # Strip MF so we end up with the name of the file.
+    mf=`echo "$mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile or not.
+    # We used to match only the files named `Makefile.in', but
+    # some people rename them; so instead we look at the file content.
+    # Grep'ing the first line is not enough: some people post-process
+    # each Makefile.in and add a new line on top of each file to say so.
+    # Grep'ing the whole file is not good either: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
+      dirpart=`AS_DIRNAME("$mf")`
+    else
+      continue
+    fi
+    # Extract the definition of DEPDIR, am__include, and am__quote
+    # from the Makefile without running `make'.
+    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+    test -z "$DEPDIR" && continue
+    am__include=`sed -n 's/^am__include = //p' < "$mf"`
+    test -z "am__include" && continue
+    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+    # When using ansi2knr, U may be empty or an underscore; expand it
+    U=`sed -n 's/^U = //p' < "$mf"`
+    # Find all dependency output files, they are included files with
+    # $(DEPDIR) in their names.  We invoke sed twice because it is the
+    # simplest approach to changing $(DEPDIR) to its actual value in the
+    # expansion.
+    for file in `sed -n "
+      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+      # Make sure the directory exists.
+      test -f "$dirpart/$file" && continue
+      fdir=`AS_DIRNAME(["$file"])`
+      AS_MKDIR_P([$dirpart/$fdir])
+      # echo "creating $dirpart/$file"
+      echo '# dummy' > "$dirpart/$file"
+    done
+  done
+}
+])# _AM_OUTPUT_DEPENDENCY_COMMANDS
+
+
+# AM_OUTPUT_DEPENDENCY_COMMANDS
+# -----------------------------
+# This macro should only be invoked once -- use via AC_REQUIRE.
+#
+# This code is only required when automatic dependency tracking
+# is enabled.  FIXME.  This creates each `.P' file that we will
+# need in order to bootstrap the dependency handling code.
+AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
+[AC_CONFIG_COMMANDS([depfiles],
+     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
+     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
+])
+
+# Do all the work for Automake.                             -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 16
+
+# This macro actually does too much.  Some checks are only needed if
+# your package does certain things.  But this isn't really a big deal.
+
+# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
+# AM_INIT_AUTOMAKE([OPTIONS])
+# -----------------------------------------------
+# The call with PACKAGE and VERSION arguments is the old style
+# call (pre autoconf-2.50), which is being phased out.  PACKAGE
+# and VERSION should now be passed to AC_INIT and removed from
+# the call to AM_INIT_AUTOMAKE.
+# We support both call styles for the transition.  After
+# the next Automake release, Autoconf can make the AC_INIT
+# arguments mandatory, and then we can depend on a new Autoconf
+# release and drop the old call support.
+AC_DEFUN([AM_INIT_AUTOMAKE],
+[AC_PREREQ([2.62])dnl
+dnl Autoconf wants to disallow AM_ names.  We explicitly allow
+dnl the ones we care about.
+m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
+AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
+AC_REQUIRE([AC_PROG_INSTALL])dnl
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+AC_SUBST([CYGPATH_W])
+
+# Define the identity of the package.
+dnl Distinguish between old-style and new-style calls.
+m4_ifval([$2],
+[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
+ AC_SUBST([PACKAGE], [$1])dnl
+ AC_SUBST([VERSION], [$2])],
+[_AM_SET_OPTIONS([$1])dnl
+dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
+m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
+  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
+ AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
+ AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
+
+_AM_IF_OPTION([no-define],,
+[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
+ AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
+
+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
+AM_MISSING_PROG(AUTOCONF, autoconf)
+AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
+AM_MISSING_PROG(AUTOHEADER, autoheader)
+AM_MISSING_PROG(MAKEINFO, makeinfo)
+AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
+AC_REQUIRE([AM_PROG_MKDIR_P])dnl
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_SET_LEADING_DOT])dnl
+_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
+	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
+			     [_AM_PROG_TAR([v7])])])
+_AM_IF_OPTION([no-dependencies],,
+[AC_PROVIDE_IFELSE([AC_PROG_CC],
+		  [_AM_DEPENDENCIES(CC)],
+		  [define([AC_PROG_CC],
+			  defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_CXX],
+		  [_AM_DEPENDENCIES(CXX)],
+		  [define([AC_PROG_CXX],
+			  defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJC],
+		  [_AM_DEPENDENCIES(OBJC)],
+		  [define([AC_PROG_OBJC],
+			  defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
+])
+_AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
+dnl The `parallel-tests' driver may need to know about EXEEXT, so add the
+dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This macro
+dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
+AC_CONFIG_COMMANDS_PRE(dnl
+[m4_provide_if([_AM_COMPILER_EXEEXT],
+  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
+])
+
+dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
+dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
+dnl mangled by Autoconf and run in a shell conditional statement.
+m4_define([_AC_COMPILER_EXEEXT],
+m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
+
+
+# When config.status generates a header, we must update the stamp-h file.
+# This file resides in the same directory as the config header
+# that is generated.  The stamp files are numbered to have different names.
+
+# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
+# loop where config.status creates the headers, so we can generate
+# our stamp files there.
+AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
+[# Compute $1's index in $config_headers.
+_am_arg=$1
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
+
+# Copyright (C) 2001, 2003, 2005, 2008  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_SH
+# ------------------
+# Define $install_sh.
+AC_DEFUN([AM_PROG_INSTALL_SH],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+if test x"${install_sh}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+AC_SUBST(install_sh)])
+
+# Copyright (C) 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# Check whether the underlying file-system supports filenames
+# with a leading dot.  For instance MS-DOS doesn't.
+AC_DEFUN([AM_SET_LEADING_DOT],
+[rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+AC_SUBST([am__leading_dot])])
+
+# Check to see how 'make' treats includes.	            -*- Autoconf -*-
+
+# Copyright (C) 2001, 2002, 2003, 2005, 2009  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 4
+
+# AM_MAKE_INCLUDE()
+# -----------------
+# Check to see how make treats includes.
+AC_DEFUN([AM_MAKE_INCLUDE],
+[am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo this is the am__doit target
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+AC_MSG_CHECKING([for style of include used by $am_make])
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# Ignore all kinds of additional output from `make'.
+case `$am_make -s -f confmf 2> /dev/null` in #(
+*the\ am__doit\ target*)
+  am__include=include
+  am__quote=
+  _am_result=GNU
+  ;;
+esac
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   case `$am_make -s -f confmf 2> /dev/null` in #(
+   *the\ am__doit\ target*)
+     am__include=.include
+     am__quote="\""
+     _am_result=BSD
+     ;;
+   esac
+fi
+AC_SUBST([am__include])
+AC_SUBST([am__quote])
+AC_MSG_RESULT([$_am_result])
+rm -f confinc confmf
+])
+
+# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
+
+# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 6
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+# ------------------------------
+AC_DEFUN([AM_MISSING_PROG],
+[AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+
+# AM_MISSING_HAS_RUN
+# ------------------
+# Define MISSING if not defined so far and test if it supports --run.
+# If it does, set am_missing_run to use it, otherwise, to nothing.
+AC_DEFUN([AM_MISSING_HAS_RUN],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([missing])dnl
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+  am_missing_run="$MISSING --run "
+else
+  am_missing_run=
+  AC_MSG_WARN([`missing' script is too old or missing])
+fi
+])
+
+# Copyright (C) 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_MKDIR_P
+# ---------------
+# Check for `mkdir -p'.
+AC_DEFUN([AM_PROG_MKDIR_P],
+[AC_PREREQ([2.60])dnl
+AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
+dnl while keeping a definition of mkdir_p for backward compatibility.
+dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
+dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
+dnl Makefile.ins that do not define MKDIR_P, so we do our own
+dnl adjustment using top_builddir (which is defined more often than
+dnl MKDIR_P).
+AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
+case $mkdir_p in
+  [[\\/$]]* | ?:[[\\/]]*) ;;
+  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
+esac
+])
+
+# Helper functions for option handling.                     -*- Autoconf -*-
+
+# Copyright (C) 2001, 2002, 2003, 2005, 2008  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 4
+
+# _AM_MANGLE_OPTION(NAME)
+# -----------------------
+AC_DEFUN([_AM_MANGLE_OPTION],
+[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
+
+# _AM_SET_OPTION(NAME)
+# ------------------------------
+# Set option NAME.  Presently that only means defining a flag for this option.
+AC_DEFUN([_AM_SET_OPTION],
+[m4_define(_AM_MANGLE_OPTION([$1]), 1)])
+
+# _AM_SET_OPTIONS(OPTIONS)
+# ----------------------------------
+# OPTIONS is a space-separated list of Automake options.
+AC_DEFUN([_AM_SET_OPTIONS],
+[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
+
+# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
+# -------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+AC_DEFUN([_AM_IF_OPTION],
+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+
+# Check to make sure that the build environment is sane.    -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 5
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[[\\\"\#\$\&\'\`$am_lf]]*)
+    AC_MSG_ERROR([unsafe absolute working directory name]);;
+esac
+case $srcdir in
+  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
+    AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
+esac
+
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+   if test "$[*]" = "X"; then
+      # -L didn't work.
+      set X `ls -t "$srcdir/configure" conftest.file`
+   fi
+   rm -f conftest.file
+   if test "$[*]" != "X $srcdir/configure conftest.file" \
+      && test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+      # If neither matched, then we have a broken ls.  This can happen
+      # if, for instance, CONFIG_SHELL is bash and it inherits a
+      # broken ls alias from the environment.  This has actually
+      # happened.  Such a system could not be considered "sane".
+      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+alias in your environment])
+   fi
+
+   test "$[2]" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT(yes)])
+
+# Copyright (C) 2009  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 1
+
+# AM_SILENT_RULES([DEFAULT])
+# --------------------------
+# Enable less verbose build rules; with the default set to DEFAULT
+# (`yes' being less verbose, `no' or empty being verbose).
+AC_DEFUN([AM_SILENT_RULES],
+[AC_ARG_ENABLE([silent-rules],
+[  --enable-silent-rules          less verbose build output (undo: `make V=1')
+  --disable-silent-rules         verbose build output (undo: `make V=0')])
+case $enable_silent_rules in
+yes) AM_DEFAULT_VERBOSITY=0;;
+no)  AM_DEFAULT_VERBOSITY=1;;
+*)   AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
+esac
+AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
+AM_BACKSLASH='\'
+AC_SUBST([AM_BACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
+])
+
+# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor `install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in `make install-strip', and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'.  However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
+if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006, 2008  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Public sister of _AM_SUBST_NOTMAKE.
+AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
+
+# Check how to create a tarball.                            -*- Autoconf -*-
+
+# Copyright (C) 2004, 2005  Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of `v7', `ustar', or `pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+#     tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+#     $(am__untar) < result.tar
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility.
+AM_MISSING_PROG([AMTAR], [tar])
+m4_if([$1], [v7],
+     [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
+     [m4_case([$1], [ustar],, [pax],,
+              [m4_fatal([Unknown tar format])])
+AC_MSG_CHECKING([how to create a $1 tar archive])
+# Loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+_am_tools=${am_cv_prog_tar_$1-$_am_tools}
+# Do not fold the above two line into one, because Tru64 sh and
+# Solaris sh will not grok spaces in the rhs of `-'.
+for _am_tool in $_am_tools
+do
+  case $_am_tool in
+  gnutar)
+    for _am_tar in tar gnutar gtar;
+    do
+      AM_RUN_LOG([$_am_tar --version]) && break
+    done
+    am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+    am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+    am__untar="$_am_tar -xf -"
+    ;;
+  plaintar)
+    # Must skip GNU tar: if it does not support --format= it doesn't create
+    # ustar tarball either.
+    (tar --version) >/dev/null 2>&1 && continue
+    am__tar='tar chf - "$$tardir"'
+    am__tar_='tar chf - "$tardir"'
+    am__untar='tar xf -'
+    ;;
+  pax)
+    am__tar='pax -L -x $1 -w "$$tardir"'
+    am__tar_='pax -L -x $1 -w "$tardir"'
+    am__untar='pax -r'
+    ;;
+  cpio)
+    am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+    am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+    am__untar='cpio -i -H $1 -d'
+    ;;
+  none)
+    am__tar=false
+    am__tar_=false
+    am__untar=false
+    ;;
+  esac
+
+  # If the value was cached, stop now.  We just wanted to have am__tar
+  # and am__untar set.
+  test -n "${am_cv_prog_tar_$1}" && break
+
+  # tar/untar a dummy directory, and stop if the command works
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  echo GrepMe > conftest.dir/file
+  AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+  rm -rf conftest.dir
+  if test -s conftest.tar; then
+    AM_RUN_LOG([$am__untar <conftest.tar])
+    grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
+  fi
+done
+rm -rf conftest.dir
+
+AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
diff --git a/8.31/config.guess b/8.31/config.guess
new file mode 100644
index 0000000..a3b0d66
--- /dev/null
+++ b/8.31/config.guess
@@ -0,0 +1,1545 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+#   2011, 2012 Free Software Foundation, Inc.
+
+timestamp='2012-02-10'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+
+# Originally written by Per Bothner.  Please send patches (context
+# diff format) to <config-patches@gnu.org> and include a ChangeLog
+# entry.
+#
+# This script attempts to guess a canonical system name similar to
+# config.sub.  If it succeeds, it prints the system name on stdout, and
+# exits with 0.  Otherwise, it exits with 1.
+#
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > $dummy.c ;
+	for c in cc gcc c89 c99 ; do
+	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+	     CC_FOR_BUILD="$c"; break ;
+	  fi ;
+	done ;
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found ;
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+case "${UNAME_SYSTEM}" in
+Linux|GNU/*)
+	eval $set_cc_for_build
+	cat <<-EOF > $dummy.c
+	#include <features.h>
+	#ifdef __UCLIBC__
+	# ifdef __UCLIBC_CONFIG_VERSION__
+	LIBC=uclibc __UCLIBC_CONFIG_VERSION__
+	# else
+	LIBC=uclibc
+	# endif
+	#else
+	# ifdef __dietlibc__
+	LIBC=dietlibc
+	# else
+	LIBC=gnu
+	# endif
+	#endif
+	EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
+	;;
+esac
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+	case "${UNAME_MACHINE_ARCH}" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently, or will in the future.
+	case "${UNAME_MACHINE_ARCH}" in
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		eval $set_cc_for_build
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep -q __ELF__
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+		os=netbsd
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case "${UNAME_VERSION}" in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "${machine}-${os}${release}"
+	exit ;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
+	exit ;;
+    *:ekkoBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
+	exit ;;
+    *:SolidBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
+	exit ;;
+    macppc:MirBSD:*:*)
+	echo powerpc-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    *:MirBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    alpha:OSF1:*:*)
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case "$ALPHA_CPU_TYPE" in
+	    "EV4 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE="alphaev5" ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE="alphaev56" ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE="alphapca56" ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE="alphapca57" ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE="alphaev6" ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE="alphaev67" ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE="alphaev69" ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE="alphaev7" ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE="alphaev79" ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
+    Alpha\ *:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# Should we change UNAME_MACHINE based on the output of uname instead
+	# of the specific Alpha model?
+	echo alpha-pc-interix
+	exit ;;
+    21064:Windows_NT:50:3)
+	echo alpha-dec-winnt3.5
+	exit ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-unknown-sysv4
+	exit ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-amigaos
+	exit ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-morphos
+	exit ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit ;;
+    *:z/VM:*:*)
+	echo s390-ibm-zvmoe
+	exit ;;
+    *:OS400:*:*)
+	echo powerpc-ibm-os400
+	exit ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix${UNAME_RELEASE}
+	exit ;;
+    arm:riscos:*:*|arm:RISCOS:*:*)
+	echo arm-unknown-riscos
+	exit ;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit ;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit ;;
+    NILE*:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit ;;
+    DRS?6000:unix:4.0:6*)
+	echo sparc-icl-nx6
+	exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) echo sparc-icl-nx7; exit ;;
+	esac ;;
+    s390x:SunOS:*:*)
+	echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	echo i386-pc-auroraux${UNAME_RELEASE}
+	exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	eval $set_cc_for_build
+	SUN_ARCH="i386"
+	# If there is a compiler, see if it is configured for 64-bit objects.
+	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+	# This test works for both compilers.
+	if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		grep IS_64BIT_ARCH >/dev/null
+	    then
+		SUN_ARCH="x86_64"
+	    fi
+	fi
+	echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+	exit ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos${UNAME_RELEASE}
+	exit ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos${UNAME_RELEASE}
+		;;
+	    sun4)
+		echo sparc-sun-sunos${UNAME_RELEASE}
+		;;
+	esac
+	exit ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos${UNAME_RELEASE}
+	exit ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+	echo m68k-milan-mint${UNAME_RELEASE}
+	exit ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+	echo m68k-hades-mint${UNAME_RELEASE}
+	exit ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+	echo m68k-unknown-mint${UNAME_RELEASE}
+	exit ;;
+    m68k:machten:*:*)
+	echo m68k-apple-machten${UNAME_RELEASE}
+	exit ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten${UNAME_RELEASE}
+	exit ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix${UNAME_RELEASE}
+	exit ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c &&
+	  dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`$dummy $dummyarg` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	echo mips-mips-riscos${UNAME_RELEASE}
+	exit ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit ;;
+    Motorola:*:4.3:PL8-*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit ;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+	then
+	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
+	       [ ${TARGET_BINARY_INTERFACE}x = x ]
+	    then
+		echo m88k-dg-dgux${UNAME_RELEASE}
+	    else
+		echo m88k-dg-dguxbcs${UNAME_RELEASE}
+	    fi
+	else
+	    echo i586-dg-dgux${UNAME_RELEASE}
+	fi
+	exit ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+	exit ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	echo i386-ibm-aix
+	exit ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		eval $set_cc_for_build
+		sed 's/^		//' << EOF >$dummy.c
+		#include <sys/systemcfg.h>
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
+		then
+			echo "$SYSTEM_NAME"
+		else
+			echo rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit ;;
+    *:AIX:*:[4567])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit ;;
+    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+	echo romp-ibm-bsd4.4
+	exit ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
+	exit ;;                             # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit ;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	case "${UNAME_MACHINE}" in
+	    9000/31? )            HP_ARCH=m68000 ;;
+	    9000/[34]?? )         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if [ -x /usr/bin/getconf ]; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case "${sc_cpu_version}" in
+		      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case "${sc_kernel_bits}" in
+			  32) HP_ARCH="hppa2.0n" ;;
+			  64) HP_ARCH="hppa2.0w" ;;
+			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
+			esac ;;
+		    esac
+		fi
+		if [ "${HP_ARCH}" = "" ]; then
+		    eval $set_cc_for_build
+		    sed 's/^		//' << EOF >$dummy.c
+
+		#define _HPUX_SOURCE
+		#include <stdlib.h>
+		#include <unistd.h>
+
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
+
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
+EOF
+		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if [ ${HP_ARCH} = "hppa2.0w" ]
+	then
+	    eval $set_cc_for_build
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep -q __LP64__
+	    then
+		HP_ARCH="hppa2.0w"
+	    else
+		HP_ARCH="hppa64"
+	    fi
+	fi
+	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+	exit ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux${HPUX_REV}
+	exit ;;
+    3050*:HI-UX:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#include <unistd.h>
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	echo unknown-hitachi-hiuxwe2
+	exit ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+	echo hppa1.1-hp-bsd
+	exit ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+	echo hppa1.1-hp-osf
+	exit ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit ;;
+    i*86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo ${UNAME_MACHINE}-unknown-osf1mk
+	else
+	    echo ${UNAME_MACHINE}-unknown-osf1
+	fi
+	exit ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+	exit ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+	exit ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+	exit ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+	exit ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    *:UNICOS/mp:*:*)
+	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    5000:UNIX_System_V:4.*:*)
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+	exit ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:BSD/OS:*:*)
+	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:FreeBSD:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case ${UNAME_PROCESSOR} in
+	    amd64)
+		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	    *)
+		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	esac
+	exit ;;
+    i*:CYGWIN*:*)
+	echo ${UNAME_MACHINE}-pc-cygwin
+	exit ;;
+    *:MINGW*:*)
+	echo ${UNAME_MACHINE}-pc-mingw32
+	exit ;;
+    i*:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
+    i*:windows32*:*)
+	# uname -m includes "-pc" on this system.
+	echo ${UNAME_MACHINE}-mingw32
+	exit ;;
+    i*:PW*:*)
+	echo ${UNAME_MACHINE}-pc-pw32
+	exit ;;
+    *:Interix*:*)
+	case ${UNAME_MACHINE} in
+	    x86)
+		echo i586-pc-interix${UNAME_RELEASE}
+		exit ;;
+	    authenticamd | genuineintel | EM64T)
+		echo x86_64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	    IA64)
+		echo ia64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	esac ;;
+    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
+	echo i${UNAME_MACHINE}-pc-mks
+	exit ;;
+    8664:Windows_NT:*)
+	echo x86_64-pc-mks
+	exit ;;
+    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
+	# UNAME_MACHINE based on the output of uname instead of i386?
+	echo i586-pc-interix
+	exit ;;
+    i*:UWIN*:*)
+	echo ${UNAME_MACHINE}-pc-uwin
+	exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	echo x86_64-unknown-cygwin
+	exit ;;
+    p*:CYGWIN*:*)
+	echo powerpcle-unknown-cygwin
+	exit ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    *:GNU:*:*)
+	# the GNU system
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	exit ;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
+	exit ;;
+    i*86:Minix:*:*)
+	echo ${UNAME_MACHINE}-pc-minix
+	exit ;;
+    aarch64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arm*:Linux:*:*)
+	eval $set_cc_for_build
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
+	    else
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
+	    fi
+	fi
+	exit ;;
+    avr32*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    cris:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    crisv32:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    frv:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    hexagon:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    i*86:Linux:*:*)
+	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+	exit ;;
+    ia64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    m32r*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    m68*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=${UNAME_MACHINE}el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=${UNAME_MACHINE}
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
+	;;
+    or32:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    padre:Linux:*:*)
+	echo sparc-unknown-linux-${LIBC}
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-${LIBC}
+	exit ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+	  *)    echo hppa-unknown-linux-${LIBC} ;;
+	esac
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-${LIBC}
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-${LIBC}
+	exit ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo ${UNAME_MACHINE}-ibm-linux
+	exit ;;
+    sh64*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    sh*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    tile*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    vax:Linux:*:*)
+	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
+	exit ;;
+    x86_64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    xtensa*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	echo i386-sequent-sysv4
+	exit ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+	exit ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo ${UNAME_MACHINE}-pc-os2-emx
+	exit ;;
+    i*86:XTS-300:*:STOP)
+	echo ${UNAME_MACHINE}-unknown-stop
+	exit ;;
+    i*86:atheos:*:*)
+	echo ${UNAME_MACHINE}-unknown-atheos
+	exit ;;
+    i*86:syllable:*:*)
+	echo ${UNAME_MACHINE}-pc-syllable
+	exit ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+	echo i386-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    i*86:*DOS:*:*)
+	echo ${UNAME_MACHINE}-pc-msdosdjgpp
+	exit ;;
+    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
+	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
+	else
+		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
+	fi
+	exit ;;
+    i*86:*:5:[678]*)
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+	exit ;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+	elif /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+	else
+		echo ${UNAME_MACHINE}-pc-sysv32
+	fi
+	exit ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
+	# Note: whatever this is, it MUST be the same as what config.sub
+	# prints for the "djgpp" host, or else GDB configury will decide that
+	# this is a cross-build.
+	echo i586-pc-msdosdjgpp
+	exit ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
+	fi
+	exit ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	echo m68k-convergent-sysv
+	exit ;;
+    M680?0:D-NIX:5.3:*)
+	echo m68k-diab-dnix
+	exit ;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+	OS_REL='.3'
+	test -r /etc/.relid \
+	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	    && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	echo m68k-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    rs6000:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+	echo powerpc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv${UNAME_RELEASE}
+	exit ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    RM*:SINIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo ${UNAME_MACHINE}-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit ;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4
+	exit ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes <hewes@openmarket.com>.
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit ;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo ${UNAME_MACHINE}-stratus-vos
+	exit ;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo hppa1.1-stratus-vos
+	exit ;;
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux${UNAME_RELEASE}
+	exit ;;
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if [ -d /usr/nec ]; then
+		echo mips-nec-sysv${UNAME_RELEASE}
+	else
+		echo mips-unknown-sysv${UNAME_RELEASE}
+	fi
+	exit ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit ;;
+    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+	echo i586-pc-haiku
+	exit ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-6:SUPER-UX:*:*)
+	echo sx6-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-7:SUPER-UX:*:*)
+	echo sx7-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8:SUPER-UX:*:*)
+	echo sx8-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8R:SUPER-UX:*:*)
+	echo sx8r-nec-superux${UNAME_RELEASE}
+	exit ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Rhapsody:*:*)
+	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	case $UNAME_PROCESSOR in
+	    i386)
+		eval $set_cc_for_build
+		if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+		  if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		      (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		      grep IS_64BIT_ARCH >/dev/null
+		  then
+		      UNAME_PROCESSOR="x86_64"
+		  fi
+		fi ;;
+	    unknown) UNAME_PROCESSOR=powerpc ;;
+	esac
+	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
+	exit ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = "x86"; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
+	exit ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit ;;
+    NEO-?:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSE-?:NONSTOP_KERNEL:*:*)
+	echo nse-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSR-?:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit ;;
+    DS/*:UNIX_System_V:*:*)
+	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+	exit ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "$cputype" = "386"; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo ${UNAME_MACHINE}-unknown-plan9
+	exit ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit ;;
+    SEI:*:*:SEIUX)
+	echo mips-sei-seiux${UNAME_RELEASE}
+	exit ;;
+    *:DragonFly:*:*)
+	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+	exit ;;
+    *:*VMS:*:*)
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case "${UNAME_MACHINE}" in
+	    A*) echo alpha-dec-vms ; exit ;;
+	    I*) echo ia64-dec-vms ; exit ;;
+	    V*) echo vax-dec-vms ; exit ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	echo i386-pc-xenix
+	exit ;;
+    i*86:skyos:*:*)
+	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
+	exit ;;
+    i*86:rdos:*:*)
+	echo ${UNAME_MACHINE}-pc-rdos
+	exit ;;
+    i*86:AROS:*:*)
+	echo ${UNAME_MACHINE}-pc-aros
+	exit ;;
+    x86_64:VMkernel:*:*)
+	echo ${UNAME_MACHINE}-unknown-esx
+	exit ;;
+esac
+
+#echo '(No uname command or uname output not recognized.)' 1>&2
+#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
+
+eval $set_cc_for_build
+cat >$dummy.c <<EOF
+#ifdef _SEQUENT_
+# include <sys/types.h>
+# include <sys/utsname.h>
+#endif
+main ()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
+     I don't know....  */
+  printf ("mips-sony-bsd\n"); exit (0);
+#else
+#include <sys/param.h>
+  printf ("m68k-sony-newsos%s\n",
+#ifdef NEWSOS4
+	"4"
+#else
+	""
+#endif
+	); exit (0);
+#endif
+#endif
+
+#if defined (__arm) && defined (__acorn) && defined (__unix)
+  printf ("arm-acorn-riscix\n"); exit (0);
+#endif
+
+#if defined (hp300) && !defined (hpux)
+  printf ("m68k-hp-bsd\n"); exit (0);
+#endif
+
+#if defined (NeXT)
+#if !defined (__ARCHITECTURE__)
+#define __ARCHITECTURE__ "m68k"
+#endif
+  int version;
+  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
+  if (version < 4)
+    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  else
+    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
+  exit (0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+  printf ("ns32k-encore-sysv\n"); exit (0);
+#else
+#if defined (CMU)
+  printf ("ns32k-encore-mach\n"); exit (0);
+#else
+  printf ("ns32k-encore-bsd\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (__386BSD__)
+  printf ("i386-pc-bsd\n"); exit (0);
+#endif
+
+#if defined (sequent)
+#if defined (i386)
+  printf ("i386-sequent-dynix\n"); exit (0);
+#endif
+#if defined (ns32000)
+  printf ("ns32k-sequent-dynix\n"); exit (0);
+#endif
+#endif
+
+#if defined (_SEQUENT_)
+    struct utsname un;
+
+    uname(&un);
+
+    if (strncmp(un.version, "V2", 2) == 0) {
+	printf ("i386-sequent-ptx2\n"); exit (0);
+    }
+    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+	printf ("i386-sequent-ptx1\n"); exit (0);
+    }
+    printf ("i386-sequent-ptx\n"); exit (0);
+
+#endif
+
+#if defined (vax)
+# if !defined (ultrix)
+#  include <sys/param.h>
+#  if defined (BSD)
+#   if BSD == 43
+      printf ("vax-dec-bsd4.3\n"); exit (0);
+#   else
+#    if BSD == 199006
+      printf ("vax-dec-bsd4.3reno\n"); exit (0);
+#    else
+      printf ("vax-dec-bsd\n"); exit (0);
+#    endif
+#   endif
+#  else
+    printf ("vax-dec-bsd\n"); exit (0);
+#  endif
+# else
+    printf ("vax-dec-ultrix\n"); exit (0);
+# endif
+#endif
+
+#if defined (alliant) && defined (i860)
+  printf ("i860-alliant-bsd\n"); exit (0);
+#endif
+
+  exit (1);
+}
+EOF
+
+$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
+	{ echo "$SYSTEM_NAME"; exit; }
+
+# Apollos put the system type in the environment.
+
+test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
+
+# Convex versions that predate uname can use getsysinfo(1)
+
+if [ -x /usr/convex/getsysinfo ]
+then
+    case `getsysinfo -f cpu_type` in
+    c1*)
+	echo c1-convex-bsd
+	exit ;;
+    c2*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    c34*)
+	echo c34-convex-bsd
+	exit ;;
+    c38*)
+	echo c38-convex-bsd
+	exit ;;
+    c4*)
+	echo c4-convex-bsd
+	exit ;;
+    esac
+fi
+
+cat >&2 <<EOF
+$0: unable to guess system type
+
+This script, last modified $timestamp, has failed to recognize
+the operating system you are using. It is advised that you
+download the most up to date version of the config scripts from
+
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+and
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM  = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/8.31/config.h.generic b/8.31/config.h.generic
new file mode 100644
index 0000000..b5be736
--- /dev/null
+++ b/8.31/config.h.generic
@@ -0,0 +1,358 @@
+/* config.h.  Generated from config.h.in by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+
+/* On Unix-like systems config.h.in is converted by "configure" into config.h.
+Some other environments also support the use of "configure". PCRE is written in
+Standard C, but there are a few non-standard things it can cope with, allowing
+it to run on SunOS4 and other "close to standard" systems.
+
+If you are going to build PCRE "by hand" on a system without "configure" you
+should copy the distributed config.h.generic to config.h, and then set up the
+macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to
+all of your compile commands, so that config.h is included at the start of
+every source.
+
+Alternatively, you can avoid editing by using -D on the compiler command line
+to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.
+
+PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
+HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
+them both to 0; an emulation function will be used. */
+
+/* By default, the \R escape sequence matches any Unicode line ending
+   character or sequence of characters. If BSR_ANYCRLF is defined, this is
+   changed so that backslash-R matches only CR, LF, or CRLF. The build- time
+   default can be overridden by the user of PCRE at runtime. On systems that
+   support it, "configure" can be used to override the default. */
+/* #undef BSR_ANYCRLF */
+
+/* If you are compiling for a system that uses EBCDIC instead of ASCII
+   character codes, define this macro as 1. On systems that can use
+   "configure", this can be done via --enable-ebcdic. PCRE will then assume
+   that all input strings are in EBCDIC. If you do not define this macro, PCRE
+   will assume input strings are ASCII or UTF-8/16 Unicode. It is not possible
+   to build a version of PCRE that supports both EBCDIC and UTF-8/16. */
+/* #undef EBCDIC */
+
+/* Define to 1 if you have the `bcopy' function. */
+#ifndef HAVE_BCOPY
+#define HAVE_BCOPY 1
+#endif
+
+/* Define to 1 if you have the <bits/type_traits.h> header file. */
+/* #undef HAVE_BITS_TYPE_TRAITS_H */
+
+/* Define to 1 if you have the <bzlib.h> header file. */
+#ifndef HAVE_BZLIB_H
+#define HAVE_BZLIB_H 1
+#endif
+
+/* Define to 1 if you have the <dirent.h> header file. */
+#ifndef HAVE_DIRENT_H
+#define HAVE_DIRENT_H 1
+#endif
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#ifndef HAVE_DLFCN_H
+#define HAVE_DLFCN_H 1
+#endif
+
+/* Define to 1 if you have the <editline/readline.h> header file. */
+/* #undef HAVE_EDITLINE_READLINE_H */
+
+/* Define to 1 if you have the <edit/readline/readline.h> header file. */
+/* #undef HAVE_EDIT_READLINE_READLINE_H */
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#ifndef HAVE_INTTYPES_H
+#define HAVE_INTTYPES_H 1
+#endif
+
+/* Define to 1 if you have the <limits.h> header file. */
+#ifndef HAVE_LIMITS_H
+#define HAVE_LIMITS_H 1
+#endif
+
+/* Define to 1 if the system has the type `long long'. */
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG 1
+#endif
+
+/* Define to 1 if you have the `memmove' function. */
+#ifndef HAVE_MEMMOVE
+#define HAVE_MEMMOVE 1
+#endif
+
+/* Define to 1 if you have the <memory.h> header file. */
+#ifndef HAVE_MEMORY_H
+#define HAVE_MEMORY_H 1
+#endif
+
+/* Define to 1 if you have the <readline/history.h> header file. */
+/* #undef HAVE_READLINE_HISTORY_H */
+
+/* Define to 1 if you have the <readline/readline.h> header file. */
+/* #undef HAVE_READLINE_READLINE_H */
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#ifndef HAVE_STDINT_H
+#define HAVE_STDINT_H 1
+#endif
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#ifndef HAVE_STDLIB_H
+#define HAVE_STDLIB_H 1
+#endif
+
+/* Define to 1 if you have the `strerror' function. */
+#ifndef HAVE_STRERROR
+#define HAVE_STRERROR 1
+#endif
+
+/* Define to 1 if you have the <string> header file. */
+#ifndef HAVE_STRING
+#define HAVE_STRING 1
+#endif
+
+/* Define to 1 if you have the <strings.h> header file. */
+#ifndef HAVE_STRINGS_H
+#define HAVE_STRINGS_H 1
+#endif
+
+/* Define to 1 if you have the <string.h> header file. */
+#ifndef HAVE_STRING_H
+#define HAVE_STRING_H 1
+#endif
+
+/* Define to 1 if you have `strtoimax'. */
+/* #undef HAVE_STRTOIMAX */
+
+/* Define to 1 if you have `strtoll'. */
+/* #undef HAVE_STRTOLL */
+
+/* Define to 1 if you have `strtoq'. */
+#ifndef HAVE_STRTOQ
+#define HAVE_STRTOQ 1
+#endif
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#ifndef HAVE_SYS_STAT_H
+#define HAVE_SYS_STAT_H 1
+#endif
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#ifndef HAVE_SYS_TYPES_H
+#define HAVE_SYS_TYPES_H 1
+#endif
+
+/* Define to 1 if you have the <type_traits.h> header file. */
+/* #undef HAVE_TYPE_TRAITS_H */
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#ifndef HAVE_UNISTD_H
+#define HAVE_UNISTD_H 1
+#endif
+
+/* Define to 1 if the system has the type `unsigned long long'. */
+#ifndef HAVE_UNSIGNED_LONG_LONG
+#define HAVE_UNSIGNED_LONG_LONG 1
+#endif
+
+/* Define to 1 if you have the <windows.h> header file. */
+/* #undef HAVE_WINDOWS_H */
+
+/* Define to 1 if you have the <zlib.h> header file. */
+#ifndef HAVE_ZLIB_H
+#define HAVE_ZLIB_H 1
+#endif
+
+/* Define to 1 if you have `_strtoi64'. */
+/* #undef HAVE__STRTOI64 */
+
+/* The value of LINK_SIZE determines the number of bytes used to store links
+   as offsets within the compiled regex. The default is 2, which allows for
+   compiled patterns up to 64K long. This covers the vast majority of cases.
+   However, PCRE can also be compiled to use 3 or 4 bytes instead. This allows
+   for longer patterns in extreme cases. On systems that support it,
+   "configure" can be used to override this default. */
+#ifndef LINK_SIZE
+#define LINK_SIZE 2
+#endif
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#ifndef LT_OBJDIR
+#define LT_OBJDIR ".libs/"
+#endif
+
+/* The value of MATCH_LIMIT determines the default number of times the
+   internal match() function can be called during a single execution of
+   pcre_exec(). There is a runtime interface for setting a different limit.
+   The limit exists in order to catch runaway regular expressions that take
+   for ever to determine that they do not match. The default is set very large
+   so that it does not accidentally catch legitimate cases. On systems that
+   support it, "configure" can be used to override this default default. */
+#ifndef MATCH_LIMIT
+#define MATCH_LIMIT 10000000
+#endif
+
+/* The above limit applies to all calls of match(), whether or not they
+   increase the recursion depth. In some environments it is desirable to limit
+   the depth of recursive calls of match() more strictly, in order to restrict
+   the maximum amount of stack (or heap, if NO_RECURSE is defined) that is
+   used. The value of MATCH_LIMIT_RECURSION applies only to recursive calls of
+   match(). To have any useful effect, it must be less than the value of
+   MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT. There is
+   a runtime method for setting a different limit. On systems that support it,
+   "configure" can be used to override the default. */
+#ifndef MATCH_LIMIT_RECURSION
+#define MATCH_LIMIT_RECURSION MATCH_LIMIT
+#endif
+
+/* This limit is parameterized just in case anybody ever wants to change it.
+   Care must be taken if it is increased, because it guards against integer
+   overflow caused by enormously large patterns. */
+#ifndef MAX_NAME_COUNT
+#define MAX_NAME_COUNT 10000
+#endif
+
+/* This limit is parameterized just in case anybody ever wants to change it.
+   Care must be taken if it is increased, because it guards against integer
+   overflow caused by enormously large patterns. */
+#ifndef MAX_NAME_SIZE
+#define MAX_NAME_SIZE 32
+#endif
+
+/* The value of NEWLINE determines the newline character sequence. On systems
+   that support it, "configure" can be used to override the default, which is
+   10. The possible values are 10 (LF), 13 (CR), 3338 (CRLF), -1 (ANY), or -2
+   (ANYCRLF). */
+#ifndef NEWLINE
+#define NEWLINE 10
+#endif
+
+/* PCRE uses recursive function calls to handle backtracking while matching.
+   This can sometimes be a problem on systems that have stacks of limited
+   size. Define NO_RECURSE to get a version that doesn't use recursion in the
+   match() function; instead it creates its own stack by steam using
+   pcre_recurse_malloc() to obtain memory from the heap. For more detail, see
+   the comments and other stuff just above the match() function. On systems
+   that support it, "configure" can be used to set this in the Makefile (use
+   --disable-stack-for-recursion). */
+/* #undef NO_RECURSE */
+
+/* Name of package */
+#define PACKAGE "pcre"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT ""
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "PCRE"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "PCRE 8.31"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "pcre"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "8.31"
+
+/* The value of PCREGREP_BUFSIZE determines the size of buffer used by
+   pcregrep to hold parts of the file it is searching. On systems that support
+   it, "configure" can be used to override the default, which is 8192. This is
+   also the minimum value. The actual amount of memory used by pcregrep is
+   three times this number, because it allows for the buffering of "before"
+   and "after" lines. */
+#ifndef PCREGREP_BUFSIZE
+#define PCREGREP_BUFSIZE 20480
+#endif
+
+
+/* If you are compiling for a system other than a Unix-like system or
+   Win32, and it needs some magic to be inserted before the definition
+   of a function that is exported by the library, define this macro to
+   contain the relevant magic. If you do not define this macro, it
+   defaults to "extern" for a C compiler and "extern C" for a C++
+   compiler on non-Win32 systems. This macro apears at the start of
+   every exported function that is part of the external API. It does
+   not appear on functions that are "external" in the C sense, but
+   which are internal to the library. */
+/* #undef PCRE_EXP_DEFN */
+
+/* Define if linking statically (TODO: make nice with Libtool) */
+/* #undef PCRE_STATIC */
+
+/* When calling PCRE via the POSIX interface, additional working storage is
+   required for holding the pointers to capturing substrings because PCRE
+   requires three integers per substring, whereas the POSIX interface provides
+   only two. If the number of expected substrings is small, the wrapper
+   function uses space on the stack, because this is faster than using
+   malloc() for each call. The threshold above which the stack is no longer
+   used is defined by POSIX_MALLOC_THRESHOLD. On systems that support it,
+   "configure" can be used to override this default. */
+#ifndef POSIX_MALLOC_THRESHOLD
+#define POSIX_MALLOC_THRESHOLD 10
+#endif
+
+/* Define to 1 if you have the ANSI C header files. */
+#ifndef STDC_HEADERS
+#define STDC_HEADERS 1
+#endif
+
+/* Define to enable support for Just-In-Time compiling. */
+/* #undef SUPPORT_JIT */
+
+/* Define to allow pcregrep to be linked with libbz2, so that it is able to
+   handle .bz2 files. */
+/* #undef SUPPORT_LIBBZ2 */
+
+/* Define to allow pcretest to be linked with libedit. */
+/* #undef SUPPORT_LIBEDIT */
+
+/* Define to allow pcretest to be linked with libreadline. */
+/* #undef SUPPORT_LIBREADLINE */
+
+/* Define to allow pcregrep to be linked with libz, so that it is able to
+   handle .gz files. */
+/* #undef SUPPORT_LIBZ */
+
+/* Define to enable the 16 bit PCRE library. */
+/* #undef SUPPORT_PCRE16 */
+
+/* Define to enable the 8 bit PCRE library. */
+#ifndef SUPPORT_PCRE8
+#define SUPPORT_PCRE8 /**/
+#endif
+
+/* Define to enable JIT support in pcregrep. */
+/* #undef SUPPORT_PCREGREP_JIT */
+
+/* Define to enable support for Unicode properties. */
+/* #undef SUPPORT_UCP */
+
+/* Define to enable support for the UTF-8/16 Unicode encoding. This will work
+   even in an EBCDIC environment, but it is incompatible with the EBCDIC
+   macro. That is, PCRE can support *either* EBCDIC code *or* ASCII/UTF-8/16,
+   but not both at once. */
+/* #undef SUPPORT_UTF */
+
+/* Version number of package */
+#ifndef VERSION
+#define VERSION "8.31"
+#endif
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to the type of a signed integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+/* #undef int64_t */
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
diff --git a/8.31/config.h.in b/8.31/config.h.in
new file mode 100644
index 0000000..044ab1d
--- /dev/null
+++ b/8.31/config.h.in
@@ -0,0 +1,291 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+
+/* On Unix-like systems config.h.in is converted by "configure" into config.h.
+Some other environments also support the use of "configure". PCRE is written in
+Standard C, but there are a few non-standard things it can cope with, allowing
+it to run on SunOS4 and other "close to standard" systems.
+
+If you are going to build PCRE "by hand" on a system without "configure" you
+should copy the distributed config.h.generic to config.h, and then set up the
+macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to
+all of your compile commands, so that config.h is included at the start of
+every source.
+
+Alternatively, you can avoid editing by using -D on the compiler command line
+to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.
+
+PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
+HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
+them both to 0; an emulation function will be used. */
+
+/* By default, the \R escape sequence matches any Unicode line ending
+   character or sequence of characters. If BSR_ANYCRLF is defined, this is
+   changed so that backslash-R matches only CR, LF, or CRLF. The build- time
+   default can be overridden by the user of PCRE at runtime. On systems that
+   support it, "configure" can be used to override the default. */
+#undef BSR_ANYCRLF
+
+/* If you are compiling for a system that uses EBCDIC instead of ASCII
+   character codes, define this macro as 1. On systems that can use
+   "configure", this can be done via --enable-ebcdic. PCRE will then assume
+   that all input strings are in EBCDIC. If you do not define this macro, PCRE
+   will assume input strings are ASCII or UTF-8/16 Unicode. It is not possible
+   to build a version of PCRE that supports both EBCDIC and UTF-8/16. */
+#undef EBCDIC
+
+/* Define to 1 if you have the `bcopy' function. */
+#undef HAVE_BCOPY
+
+/* Define to 1 if you have the <bits/type_traits.h> header file. */
+#undef HAVE_BITS_TYPE_TRAITS_H
+
+/* Define to 1 if you have the <bzlib.h> header file. */
+#undef HAVE_BZLIB_H
+
+/* Define to 1 if you have the <dirent.h> header file. */
+#undef HAVE_DIRENT_H
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the <editline/readline.h> header file. */
+#undef HAVE_EDITLINE_READLINE_H
+
+/* Define to 1 if you have the <edit/readline/readline.h> header file. */
+#undef HAVE_EDIT_READLINE_READLINE_H
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <limits.h> header file. */
+#undef HAVE_LIMITS_H
+
+/* Define to 1 if the system has the type `long long'. */
+#undef HAVE_LONG_LONG
+
+/* Define to 1 if you have the `memmove' function. */
+#undef HAVE_MEMMOVE
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the <readline/history.h> header file. */
+#undef HAVE_READLINE_HISTORY_H
+
+/* Define to 1 if you have the <readline/readline.h> header file. */
+#undef HAVE_READLINE_READLINE_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the `strerror' function. */
+#undef HAVE_STRERROR
+
+/* Define to 1 if you have the <string> header file. */
+#undef HAVE_STRING
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have `strtoimax'. */
+#undef HAVE_STRTOIMAX
+
+/* Define to 1 if you have `strtoll'. */
+#undef HAVE_STRTOLL
+
+/* Define to 1 if you have `strtoq'. */
+#undef HAVE_STRTOQ
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <type_traits.h> header file. */
+#undef HAVE_TYPE_TRAITS_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if the system has the type `unsigned long long'. */
+#undef HAVE_UNSIGNED_LONG_LONG
+
+/* Define to 1 if you have the <windows.h> header file. */
+#undef HAVE_WINDOWS_H
+
+/* Define to 1 if you have the <zlib.h> header file. */
+#undef HAVE_ZLIB_H
+
+/* Define to 1 if you have `_strtoi64'. */
+#undef HAVE__STRTOI64
+
+/* The value of LINK_SIZE determines the number of bytes used to store links
+   as offsets within the compiled regex. The default is 2, which allows for
+   compiled patterns up to 64K long. This covers the vast majority of cases.
+   However, PCRE can also be compiled to use 3 or 4 bytes instead. This allows
+   for longer patterns in extreme cases. On systems that support it,
+   "configure" can be used to override this default. */
+#undef LINK_SIZE
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#undef LT_OBJDIR
+
+/* The value of MATCH_LIMIT determines the default number of times the
+   internal match() function can be called during a single execution of
+   pcre_exec(). There is a runtime interface for setting a different limit.
+   The limit exists in order to catch runaway regular expressions that take
+   for ever to determine that they do not match. The default is set very large
+   so that it does not accidentally catch legitimate cases. On systems that
+   support it, "configure" can be used to override this default default. */
+#undef MATCH_LIMIT
+
+/* The above limit applies to all calls of match(), whether or not they
+   increase the recursion depth. In some environments it is desirable to limit
+   the depth of recursive calls of match() more strictly, in order to restrict
+   the maximum amount of stack (or heap, if NO_RECURSE is defined) that is
+   used. The value of MATCH_LIMIT_RECURSION applies only to recursive calls of
+   match(). To have any useful effect, it must be less than the value of
+   MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT. There is
+   a runtime method for setting a different limit. On systems that support it,
+   "configure" can be used to override the default. */
+#undef MATCH_LIMIT_RECURSION
+
+/* This limit is parameterized just in case anybody ever wants to change it.
+   Care must be taken if it is increased, because it guards against integer
+   overflow caused by enormously large patterns. */
+#undef MAX_NAME_COUNT
+
+/* This limit is parameterized just in case anybody ever wants to change it.
+   Care must be taken if it is increased, because it guards against integer
+   overflow caused by enormously large patterns. */
+#undef MAX_NAME_SIZE
+
+/* The value of NEWLINE determines the newline character sequence. On systems
+   that support it, "configure" can be used to override the default, which is
+   10. The possible values are 10 (LF), 13 (CR), 3338 (CRLF), -1 (ANY), or -2
+   (ANYCRLF). */
+#undef NEWLINE
+
+/* PCRE uses recursive function calls to handle backtracking while matching.
+   This can sometimes be a problem on systems that have stacks of limited
+   size. Define NO_RECURSE to get a version that doesn't use recursion in the
+   match() function; instead it creates its own stack by steam using
+   pcre_recurse_malloc() to obtain memory from the heap. For more detail, see
+   the comments and other stuff just above the match() function. On systems
+   that support it, "configure" can be used to set this in the Makefile (use
+   --disable-stack-for-recursion). */
+#undef NO_RECURSE
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* The value of PCREGREP_BUFSIZE determines the size of buffer used by
+   pcregrep to hold parts of the file it is searching. On systems that support
+   it, "configure" can be used to override the default, which is 8192. This is
+   also the minimum value. The actual amount of memory used by pcregrep is
+   three times this number, because it allows for the buffering of "before"
+   and "after" lines. */
+#undef PCREGREP_BUFSIZE
+
+
+/* If you are compiling for a system other than a Unix-like system or
+   Win32, and it needs some magic to be inserted before the definition
+   of a function that is exported by the library, define this macro to
+   contain the relevant magic. If you do not define this macro, it
+   defaults to "extern" for a C compiler and "extern C" for a C++
+   compiler on non-Win32 systems. This macro apears at the start of
+   every exported function that is part of the external API. It does
+   not appear on functions that are "external" in the C sense, but
+   which are internal to the library. */
+#undef PCRE_EXP_DEFN
+
+/* Define if linking statically (TODO: make nice with Libtool) */
+#undef PCRE_STATIC
+
+/* When calling PCRE via the POSIX interface, additional working storage is
+   required for holding the pointers to capturing substrings because PCRE
+   requires three integers per substring, whereas the POSIX interface provides
+   only two. If the number of expected substrings is small, the wrapper
+   function uses space on the stack, because this is faster than using
+   malloc() for each call. The threshold above which the stack is no longer
+   used is defined by POSIX_MALLOC_THRESHOLD. On systems that support it,
+   "configure" can be used to override this default. */
+#undef POSIX_MALLOC_THRESHOLD
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Define to enable support for Just-In-Time compiling. */
+#undef SUPPORT_JIT
+
+/* Define to allow pcregrep to be linked with libbz2, so that it is able to
+   handle .bz2 files. */
+#undef SUPPORT_LIBBZ2
+
+/* Define to allow pcretest to be linked with libedit. */
+#undef SUPPORT_LIBEDIT
+
+/* Define to allow pcretest to be linked with libreadline. */
+#undef SUPPORT_LIBREADLINE
+
+/* Define to allow pcregrep to be linked with libz, so that it is able to
+   handle .gz files. */
+#undef SUPPORT_LIBZ
+
+/* Define to enable the 16 bit PCRE library. */
+#undef SUPPORT_PCRE16
+
+/* Define to enable the 8 bit PCRE library. */
+#undef SUPPORT_PCRE8
+
+/* Define to enable JIT support in pcregrep. */
+#undef SUPPORT_PCREGREP_JIT
+
+/* Define to enable support for Unicode properties. */
+#undef SUPPORT_UCP
+
+/* Define to enable support for the UTF-8/16 Unicode encoding. This will work
+   even in an EBCDIC environment, but it is incompatible with the EBCDIC
+   macro. That is, PCRE can support *either* EBCDIC code *or* ASCII/UTF-8/16,
+   but not both at once. */
+#undef SUPPORT_UTF
+
+/* Version number of package */
+#undef VERSION
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define to the type of a signed integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+#undef int64_t
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef size_t
diff --git a/8.31/config.sub b/8.31/config.sub
new file mode 100644
index 0000000..42adc67
--- /dev/null
+++ b/8.31/config.sub
@@ -0,0 +1,1791 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+#   2011, 2012 Free Software Foundation, Inc.
+
+timestamp='2012-02-10'
+
+# This file is (in principle) common to ALL GNU software.
+# The presence of a machine in this file suggests that SOME GNU software
+# can handle that machine.  It does not imply ALL GNU software can.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted GNU ChangeLog entry.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+  linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | \
+  kopensolaris*-gnu* | \
+  storm-chaos* | os2-emx* | rtmk-nova*)
+    os=-$maybe_os
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
+  *)
+    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+    if [ $basic_machine != $1 ]
+    then os=`echo $1 | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+	-sun*os*)
+		# Prevent following clause from handling this invalid input.
+		;;
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+	-apple | -axis | -knuth | -cray | -microblaze)
+		os=
+		basic_machine=$1
+		;;
+	-bluegene*)
+		os=-cnk
+		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+	-chorusrdb)
+		os=-chorusrdb
+		basic_machine=$1
+		;;
+	-hiux*)
+		os=-hiuxwe2
+		;;
+	-sco6)
+		os=-sco5v6
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5)
+		os=-sco3.2v5
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco4)
+		os=-sco3.2v4
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2v[4-9]*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5v6*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco*)
+		os=-sco3.2v2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-udk*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-isc)
+		os=-isc2.2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-clix*)
+		basic_machine=clipper-intergraph
+		;;
+	-isc*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-lynx*)
+		os=-lynxos
+		;;
+	-ptx*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+		;;
+	-windowsnt*)
+		os=`echo $os | sed -e 's/windowsnt/winnt/'`
+		;;
+	-psos*)
+		os=-psos
+		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+	# Recognize the basic CPU types without company name.
+	# Some are omitted here because they have special meanings below.
+	1750a | 580 \
+	| a29k \
+	| aarch64 | aarch64_be \
+	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+	| am33_2.0 \
+	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+        | be32 | be64 \
+	| bfin \
+	| c4x | clipper \
+	| d10v | d30v | dlx | dsp16xx | dvp \
+	| epiphany \
+	| fido | fr30 | frv \
+	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
+	| i370 | i860 | i960 | ia64 \
+	| ip2k | iq2000 \
+	| le32 | le64 \
+	| lm32 \
+	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+	| maxq | mb | microblaze | mcore | mep | metag \
+	| mips | mipsbe | mipseb | mipsel | mipsle \
+	| mips16 \
+	| mips64 | mips64el \
+	| mips64octeon | mips64octeonel \
+	| mips64orion | mips64orionel \
+	| mips64r5900 | mips64r5900el \
+	| mips64vr | mips64vrel \
+	| mips64vr4100 | mips64vr4100el \
+	| mips64vr4300 | mips64vr4300el \
+	| mips64vr5000 | mips64vr5000el \
+	| mips64vr5900 | mips64vr5900el \
+	| mipsisa32 | mipsisa32el \
+	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa64 | mipsisa64el \
+	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64sb1 | mipsisa64sb1el \
+	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipstx39 | mipstx39el \
+	| mn10200 | mn10300 \
+	| moxie \
+	| mt \
+	| msp430 \
+	| nds32 | nds32le | nds32be \
+	| nios | nios2 \
+	| ns16k | ns32k \
+	| open8 \
+	| or32 \
+	| pdp10 | pdp11 | pj | pjl \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pyramid \
+	| rl78 | rx \
+	| score \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh64 | sh64le \
+	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
+	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
+	| spu \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+	| ubicom32 \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| we32k \
+	| x86 | xc16x | xstormy16 | xtensa \
+	| z8k | z80)
+		basic_machine=$basic_machine-unknown
+		;;
+	c54x)
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+		;;
+	ms1)
+		basic_machine=mt-unknown
+		;;
+
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i*86 | x86_64)
+	  basic_machine=$basic_machine-pc
+	  ;;
+	# Object if more than one company name word.
+	*-*-*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+	# Recognize the basic CPU types with company name.
+	580-* \
+	| a29k-* \
+	| aarch64-* | aarch64_be-* \
+	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+	| avr-* | avr32-* \
+	| be32-* | be64-* \
+	| bfin-* | bs2000-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+	| clipper-* | craynv-* | cydra-* \
+	| d10v-* | d30v-* | dlx-* \
+	| elxsi-* \
+	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+	| h8300-* | h8500-* \
+	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
+	| i*86-* | i860-* | i960-* | ia64-* \
+	| ip2k-* | iq2000-* \
+	| le32-* | le64-* \
+	| lm32-* \
+	| m32c-* | m32r-* | m32rle-* \
+	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \
+	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+	| mips16-* \
+	| mips64-* | mips64el-* \
+	| mips64octeon-* | mips64octeonel-* \
+	| mips64orion-* | mips64orionel-* \
+	| mips64r5900-* | mips64r5900el-* \
+	| mips64vr-* | mips64vrel-* \
+	| mips64vr4100-* | mips64vr4100el-* \
+	| mips64vr4300-* | mips64vr4300el-* \
+	| mips64vr5000-* | mips64vr5000el-* \
+	| mips64vr5900-* | mips64vr5900el-* \
+	| mipsisa32-* | mipsisa32el-* \
+	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa64-* | mipsisa64el-* \
+	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64sb1-* | mipsisa64sb1el-* \
+	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipstx39-* | mipstx39el-* \
+	| mmix-* \
+	| mt-* \
+	| msp430-* \
+	| nds32-* | nds32le-* | nds32be-* \
+	| nios-* | nios2-* \
+	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
+	| orion-* \
+	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pyramid-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+	| sparclite-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+	| tahoe-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tile*-* \
+	| tron-* \
+	| ubicom32-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
+	| we32k-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
+	| xstormy16-* | xtensa*-* \
+	| ymp-* \
+	| z8k-* | z80-*)
+		;;
+	# Recognize the basic CPU types without company name, with glob match.
+	xtensa*)
+		basic_machine=$basic_machine-unknown
+		;;
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-unknown
+		os=-bsd
+		;;
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		basic_machine=m68000-att
+		;;
+	3b*)
+		basic_machine=we32k-att
+		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	abacus)
+		basic_machine=abacus-unknown
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
+	alliant | fx80)
+		basic_machine=fx80-alliant
+		;;
+	altos | altos3068)
+		basic_machine=m68k-altos
+		;;
+	am29k)
+		basic_machine=a29k-none
+		os=-bsd
+		;;
+	amd64)
+		basic_machine=x86_64-pc
+		;;
+	amd64-*)
+		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	amdahl)
+		basic_machine=580-amdahl
+		os=-sysv
+		;;
+	amiga | amiga-*)
+		basic_machine=m68k-unknown
+		;;
+	amigaos | amigados)
+		basic_machine=m68k-unknown
+		os=-amigaos
+		;;
+	amigaunix | amix)
+		basic_machine=m68k-unknown
+		os=-sysv4
+		;;
+	apollo68)
+		basic_machine=m68k-apollo
+		os=-sysv
+		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
+	aros)
+		basic_machine=i386-pc
+		os=-aros
+		;;
+	aux)
+		basic_machine=m68k-apple
+		os=-aux
+		;;
+	balance)
+		basic_machine=ns32k-sequent
+		os=-dynix
+		;;
+	blackfin)
+		basic_machine=bfin-unknown
+		os=-linux
+		;;
+	blackfin-*)
+		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	bluegene*)
+		basic_machine=powerpc-ibm
+		os=-cnk
+		;;
+	c54x-*)
+		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c55x-*)
+		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c6x-*)
+		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c90)
+		basic_machine=c90-cray
+		os=-unicos
+		;;
+	cegcc)
+		basic_machine=arm-unknown
+		os=-cegcc
+		;;
+	convex-c1)
+		basic_machine=c1-convex
+		os=-bsd
+		;;
+	convex-c2)
+		basic_machine=c2-convex
+		os=-bsd
+		;;
+	convex-c32)
+		basic_machine=c32-convex
+		os=-bsd
+		;;
+	convex-c34)
+		basic_machine=c34-convex
+		os=-bsd
+		;;
+	convex-c38)
+		basic_machine=c38-convex
+		os=-bsd
+		;;
+	cray | j90)
+		basic_machine=j90-cray
+		os=-unicos
+		;;
+	craynv)
+		basic_machine=craynv-cray
+		os=-unicosmp
+		;;
+	cr16 | cr16-*)
+		basic_machine=cr16-unknown
+		os=-elf
+		;;
+	crds | unos)
+		basic_machine=m68k-crds
+		;;
+	crisv32 | crisv32-* | etraxfs*)
+		basic_machine=crisv32-axis
+		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
+	crx)
+		basic_machine=crx-unknown
+		os=-elf
+		;;
+	da30 | da30-*)
+		basic_machine=m68k-da30
+		;;
+	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+		basic_machine=mips-dec
+		;;
+	decsystem10* | dec10*)
+		basic_machine=pdp10-dec
+		os=-tops10
+		;;
+	decsystem20* | dec20*)
+		basic_machine=pdp10-dec
+		os=-tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		basic_machine=m68k-motorola
+		;;
+	delta88)
+		basic_machine=m88k-motorola
+		os=-sysv3
+		;;
+	dicos)
+		basic_machine=i686-pc
+		os=-dicos
+		;;
+	djgpp)
+		basic_machine=i586-pc
+		os=-msdosdjgpp
+		;;
+	dpx20 | dpx20-*)
+		basic_machine=rs6000-bull
+		os=-bosx
+		;;
+	dpx2* | dpx2*-bull)
+		basic_machine=m68k-bull
+		os=-sysv3
+		;;
+	ebmon29k)
+		basic_machine=a29k-amd
+		os=-ebmon
+		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
+	encore | umax | mmax)
+		basic_machine=ns32k-encore
+		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
+	fx2800)
+		basic_machine=i860-alliant
+		;;
+	genix)
+		basic_machine=ns32k-ns
+		;;
+	gmicro)
+		basic_machine=tron-gmicro
+		os=-sysv
+		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
+	h3050r* | hiux*)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	h8300hms)
+		basic_machine=h8300-hitachi
+		os=-hms
+		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
+	harris)
+		basic_machine=m88k-harris
+		os=-sysv3
+		;;
+	hp300-*)
+		basic_machine=m68k-hp
+		;;
+	hp300bsd)
+		basic_machine=m68k-hp
+		os=-bsd
+		;;
+	hp300hpux)
+		basic_machine=m68k-hp
+		os=-hpux
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		basic_machine=m68000-hp
+		;;
+	hp9k3[2-9][0-9])
+		basic_machine=m68k-hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hppa-next)
+		os=-nextstep3
+		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
+	i370-ibm* | ibm*)
+		basic_machine=i370-ibm
+		;;
+	i*86v32)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv32
+		;;
+	i*86v4*)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv4
+		;;
+	i*86v)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv
+		;;
+	i*86sol2)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-solaris2
+		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	i386-vsta | vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
+	iris | iris4d)
+		basic_machine=mips-sgi
+		case $os in
+		    -irix*)
+			;;
+		    *)
+			os=-irix4
+			;;
+		esac
+		;;
+	isi68 | isi)
+		basic_machine=m68k-isi
+		os=-sysv
+		;;
+	m68knommu)
+		basic_machine=m68k-unknown
+		os=-linux
+		;;
+	m68knommu-*)
+		basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	m88k-omron*)
+		basic_machine=m88k-omron
+		;;
+	magnum | m3230)
+		basic_machine=mips-mips
+		os=-sysv
+		;;
+	merlin)
+		basic_machine=ns32k-utek
+		os=-sysv
+		;;
+	microblaze)
+		basic_machine=microblaze-xilinx
+		;;
+	mingw32)
+		basic_machine=i386-pc
+		os=-mingw32
+		;;
+	mingw32ce)
+		basic_machine=arm-unknown
+		os=-mingw32ce
+		;;
+	miniframe)
+		basic_machine=m68000-convergent
+		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+	mipsEE* | ee | ps2)
+		basic_machine=mips64r5900el-scei
+		case $os in
+		    -linux*)
+			;;
+		    *)
+			os=-elf
+			;;
+		esac
+		;;
+	iop)
+		basic_machine=mipsel-scei
+		os=-irx
+		;;
+	dvp)
+		basic_machine=dvp-scei
+		os=-elf
+		;;
+	mips3*-*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+		;;
+	mips3*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	morphos)
+		basic_machine=powerpc-unknown
+		os=-morphos
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	ms1-*)
+		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
+		;;
+	msys)
+		basic_machine=i386-pc
+		os=-msys
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
+	ncr3000)
+		basic_machine=i486-ncr
+		os=-sysv4
+		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
+	news | news700 | news800 | news900)
+		basic_machine=m68k-sony
+		os=-newsos
+		;;
+	news1000)
+		basic_machine=m68030-sony
+		os=-newsos
+		;;
+	news-3600 | risc-news)
+		basic_machine=mips-sony
+		os=-newsos
+		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
+	next | m*-next )
+		basic_machine=m68k-next
+		case $os in
+		    -nextstep* )
+			;;
+		    -ns2*)
+		      os=-nextstep2
+			;;
+		    *)
+		      os=-nextstep3
+			;;
+		esac
+		;;
+	nh3000)
+		basic_machine=m68k-harris
+		os=-cxux
+		;;
+	nh[45]000)
+		basic_machine=m88k-harris
+		os=-cxux
+		;;
+	nindy960)
+		basic_machine=i960-intel
+		os=-nindy
+		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
+	np1)
+		basic_machine=np1-gould
+		;;
+	neo-tandem)
+		basic_machine=neo-tandem
+		;;
+	nse-tandem)
+		basic_machine=nse-tandem
+		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	openrisc | openrisc-*)
+		basic_machine=or32-unknown
+		;;
+	os400)
+		basic_machine=powerpc-ibm
+		os=-os400
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
+	pa-hitachi)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	paragon)
+		basic_machine=i860-intel
+		os=-osf
+		;;
+	parisc)
+		basic_machine=hppa-unknown
+		os=-linux
+		;;
+	parisc-*)
+		basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	pbd)
+		basic_machine=sparc-tti
+		;;
+	pbb)
+		basic_machine=m68k-tti
+		;;
+	pc532 | pc532-*)
+		basic_machine=ns32k-pc532
+		;;
+	pc98)
+		basic_machine=i386-pc
+		;;
+	pc98-*)
+		basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium | p5 | k5 | k6 | nexgen | viac3)
+		basic_machine=i586-pc
+		;;
+	pentiumpro | p6 | 6x86 | athlon | athlon_*)
+		basic_machine=i686-pc
+		;;
+	pentiumii | pentium2 | pentiumiii | pentium3)
+		basic_machine=i686-pc
+		;;
+	pentium4)
+		basic_machine=i786-pc
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium4-*)
+		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pn)
+		basic_machine=pn-gould
+		;;
+	power)	basic_machine=power-ibm
+		;;
+	ppc | ppcbe)	basic_machine=powerpc-unknown
+		;;
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppcle | powerpclittle | ppc-le | powerpc-little)
+		basic_machine=powerpcle-unknown
+		;;
+	ppcle-* | powerpclittle-*)
+		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64)	basic_machine=powerpc64-unknown
+		;;
+	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+		basic_machine=powerpc64le-unknown
+		;;
+	ppc64le-* | powerpc64little-*)
+		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ps2)
+		basic_machine=i386-ibm
+		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rdos)
+		basic_machine=i386-pc
+		os=-rdos
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	rm[46]00)
+		basic_machine=mips-siemens
+		;;
+	rtpc | rtpc-*)
+		basic_machine=romp-ibm
+		;;
+	s390 | s390-*)
+		basic_machine=s390-ibm
+		;;
+	s390x | s390x-*)
+		basic_machine=s390x-ibm
+		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	sb1)
+		basic_machine=mipsisa64sb1-unknown
+		;;
+	sb1el)
+		basic_machine=mipsisa64sb1el-unknown
+		;;
+	sde)
+		basic_machine=mipsisa32-sde
+		os=-elf
+		;;
+	sei)
+		basic_machine=mips-sei
+		os=-seiux
+		;;
+	sequent)
+		basic_machine=i386-sequent
+		;;
+	sh)
+		basic_machine=sh-hitachi
+		os=-hms
+		;;
+	sh5el)
+		basic_machine=sh5le-unknown
+		;;
+	sh64)
+		basic_machine=sh64-unknown
+		;;
+	sparclite-wrs | simso-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
+	sps7)
+		basic_machine=m68k-bull
+		os=-sysv2
+		;;
+	spur)
+		basic_machine=spur-unknown
+		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	sun2)
+		basic_machine=m68000-sun
+		;;
+	sun2os3)
+		basic_machine=m68000-sun
+		os=-sunos3
+		;;
+	sun2os4)
+		basic_machine=m68000-sun
+		os=-sunos4
+		;;
+	sun3os3)
+		basic_machine=m68k-sun
+		os=-sunos3
+		;;
+	sun3os4)
+		basic_machine=m68k-sun
+		os=-sunos4
+		;;
+	sun4os3)
+		basic_machine=sparc-sun
+		os=-sunos3
+		;;
+	sun4os4)
+		basic_machine=sparc-sun
+		os=-sunos4
+		;;
+	sun4sol2)
+		basic_machine=sparc-sun
+		os=-solaris2
+		;;
+	sun3 | sun3-*)
+		basic_machine=m68k-sun
+		;;
+	sun4)
+		basic_machine=sparc-sun
+		;;
+	sun386 | sun386i | roadrunner)
+		basic_machine=i386-sun
+		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
+	symmetry)
+		basic_machine=i386-sequent
+		os=-dynix
+		;;
+	t3e)
+		basic_machine=alphaev5-cray
+		os=-unicos
+		;;
+	t90)
+		basic_machine=t90-cray
+		os=-unicos
+		;;
+	tile*)
+		basic_machine=$basic_machine-unknown
+		os=-linux-gnu
+		;;
+	tx39)
+		basic_machine=mipstx39-unknown
+		;;
+	tx39el)
+		basic_machine=mipstx39el-unknown
+		;;
+	toad1)
+		basic_machine=pdp10-xkl
+		os=-tops20
+		;;
+	tower | tower-32)
+		basic_machine=m68k-ncr
+		;;
+	tpf)
+		basic_machine=s390x-ibm
+		os=-tpf
+		;;
+	udi29k)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	ultra3)
+		basic_machine=a29k-nyu
+		os=-sym1
+		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
+	vaxv)
+		basic_machine=vax-dec
+		os=-sysv
+		;;
+	vms)
+		basic_machine=vax-dec
+		os=-vms
+		;;
+	vpp*|vx|vx-*)
+		basic_machine=f301-fujitsu
+		;;
+	vxworks960)
+		basic_machine=i960-wrs
+		os=-vxworks
+		;;
+	vxworks68)
+		basic_machine=m68k-wrs
+		os=-vxworks
+		;;
+	vxworks29k)
+		basic_machine=a29k-wrs
+		os=-vxworks
+		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	xbox)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	xps | xps100)
+		basic_machine=xps100-honeywell
+		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+		;;
+	ymp)
+		basic_machine=ymp-cray
+		os=-unicos
+		;;
+	z8k-*-coff)
+		basic_machine=z8k-unknown
+		os=-sim
+		;;
+	z80-*-coff)
+		basic_machine=z80-unknown
+		os=-sim
+		;;
+	none)
+		basic_machine=none-none
+		os=-none
+		;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
+	romp)
+		basic_machine=romp-ibm
+		;;
+	mmix)
+		basic_machine=mmix-knuth
+		;;
+	rs6000)
+		basic_machine=rs6000-ibm
+		;;
+	vax)
+		basic_machine=vax-dec
+		;;
+	pdp10)
+		# there are many clones, so DEC is not a safe bet
+		basic_machine=pdp10-unknown
+		;;
+	pdp11)
+		basic_machine=pdp11-dec
+		;;
+	we32k)
+		basic_machine=we32k-att
+		;;
+	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+		basic_machine=sh-unknown
+		;;
+	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
+		basic_machine=sparc-sun
+		;;
+	cydra)
+		basic_machine=cydra-cydrome
+		;;
+	orion)
+		basic_machine=orion-highlevel
+		;;
+	orion105)
+		basic_machine=clipper-highlevel
+		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
+	*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+	*-digital*)
+		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+		;;
+	*-commodore*)
+		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+	# First match some system type aliases
+	# that might get confused with valid system types.
+	# -solaris* is a basic system type, with this one exception.
+	-auroraux)
+		os=-auroraux
+		;;
+	-solaris1 | -solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	-solaris)
+		os=-solaris2
+		;;
+	-svr4*)
+		os=-sysv4
+		;;
+	-unixware*)
+		os=-sysv4.2uw
+		;;
+	-gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# First accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST END IN A *, to match a version number.
+	# -sysv* is not here because it comes later, after sysvr4.
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+	      | -sym* | -kopensolaris* \
+	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+	      | -aos* | -aros* \
+	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
+	      | -openbsd* | -solidbsd* \
+	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* | -cegcc* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* | -irx* \
+	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto-qnx*)
+		;;
+	-nto*)
+		os=`echo $os | sed -e 's|nto|nto-qnx|'`
+		;;
+	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo $os | sed -e 's|mac|macos|'`
+		;;
+	-linux-dietlibc)
+		os=-linux-dietlibc
+		;;
+	-linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	-sunos5*)
+		os=`echo $os | sed -e 's|sunos5|solaris2|'`
+		;;
+	-sunos6*)
+		os=`echo $os | sed -e 's|sunos6|solaris3|'`
+		;;
+	-opened*)
+		os=-openedition
+		;;
+	-os400*)
+		os=-os400
+		;;
+	-wince*)
+		os=-wince
+		;;
+	-osfrose*)
+		os=-osfrose
+		;;
+	-osf*)
+		os=-osf
+		;;
+	-utek*)
+		os=-bsd
+		;;
+	-dynix*)
+		os=-bsd
+		;;
+	-acis*)
+		os=-aos
+		;;
+	-atheos*)
+		os=-atheos
+		;;
+	-syllable*)
+		os=-syllable
+		;;
+	-386bsd)
+		os=-bsd
+		;;
+	-ctix* | -uts*)
+		os=-sysv
+		;;
+	-nova*)
+		os=-rtmk-nova
+		;;
+	-ns2 )
+		os=-nextstep2
+		;;
+	-nsk*)
+		os=-nsk
+		;;
+	# Preserve the version number of sinix5.
+	-sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	-sinix*)
+		os=-sysv4
+		;;
+	-tpf*)
+		os=-tpf
+		;;
+	-triton*)
+		os=-sysv3
+		;;
+	-oss*)
+		os=-sysv3
+		;;
+	-svr4)
+		os=-sysv4
+		;;
+	-svr3)
+		os=-sysv3
+		;;
+	-sysvr4)
+		os=-sysv4
+		;;
+	# This must come after -sysvr4.
+	-sysv*)
+		;;
+	-ose*)
+		os=-ose
+		;;
+	-es1800*)
+		os=-ose
+		;;
+	-xenix)
+		os=-xenix
+		;;
+	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+		os=-mint
+		;;
+	-aros*)
+		os=-aros
+		;;
+	-kaos*)
+		os=-kaos
+		;;
+	-zvmoe)
+		os=-zvmoe
+		;;
+	-dicos*)
+		os=-dicos
+		;;
+	-nacl*)
+		;;
+	-none)
+		;;
+	*)
+		# Get rid of the `-' at the beginning of $os.
+		os=`echo $os | sed 's/[^-]*-//'`
+		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+	score-*)
+		os=-elf
+		;;
+	spu-*)
+		os=-elf
+		;;
+	*-acorn)
+		os=-riscix1.2
+		;;
+	arm*-rebel)
+		os=-linux
+		;;
+	arm*-semi)
+		os=-aout
+		;;
+	c4x-* | tic4x-*)
+		os=-coff
+		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
+		;;
+	# This must come before the *-dec entry.
+	pdp10-*)
+		os=-tops20
+		;;
+	pdp11-*)
+		os=-none
+		;;
+	*-dec | vax-*)
+		os=-ultrix4.2
+		;;
+	m68*-apollo)
+		os=-domain
+		;;
+	i386-sun)
+		os=-sunos4.0.2
+		;;
+	m68000-sun)
+		os=-sunos3
+		;;
+	m68*-cisco)
+		os=-aout
+		;;
+	mep-*)
+		os=-elf
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
+	or32-*)
+		os=-coff
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=-sysv3
+		;;
+	sparc-* | *-sun)
+		os=-sunos4.1.1
+		;;
+	*-be)
+		os=-beos
+		;;
+	*-haiku)
+		os=-haiku
+		;;
+	*-ibm)
+		os=-aix
+		;;
+	*-knuth)
+		os=-mmixware
+		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
+	*-hp)
+		os=-hpux
+		;;
+	*-hitachi)
+		os=-hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=-sysv
+		;;
+	*-cbm)
+		os=-amigaos
+		;;
+	*-dg)
+		os=-dgux
+		;;
+	*-dolphin)
+		os=-sysv3
+		;;
+	m68k-ccur)
+		os=-rtu
+		;;
+	m88k-omron*)
+		os=-luna
+		;;
+	*-next )
+		os=-nextstep
+		;;
+	*-sequent)
+		os=-ptx
+		;;
+	*-crds)
+		os=-unos
+		;;
+	*-ns)
+		os=-genix
+		;;
+	i370-*)
+		os=-mvs
+		;;
+	*-next)
+		os=-nextstep3
+		;;
+	*-gould)
+		os=-sysv
+		;;
+	*-highlevel)
+		os=-bsd
+		;;
+	*-encore)
+		os=-bsd
+		;;
+	*-sgi)
+		os=-irix
+		;;
+	*-siemens)
+		os=-sysv4
+		;;
+	*-masscomp)
+		os=-rtu
+		;;
+	f30[01]-fujitsu | f700-fujitsu)
+		os=-uxpv
+		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
+	*)
+		os=-none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+	*-unknown)
+		case $os in
+			-riscix*)
+				vendor=acorn
+				;;
+			-sunos*)
+				vendor=sun
+				;;
+			-cnk*|-aix*)
+				vendor=ibm
+				;;
+			-beos*)
+				vendor=be
+				;;
+			-hpux*)
+				vendor=hp
+				;;
+			-mpeix*)
+				vendor=hp
+				;;
+			-hiux*)
+				vendor=hitachi
+				;;
+			-unos*)
+				vendor=crds
+				;;
+			-dgux*)
+				vendor=dg
+				;;
+			-luna*)
+				vendor=omron
+				;;
+			-genix*)
+				vendor=ns
+				;;
+			-mvs* | -opened*)
+				vendor=ibm
+				;;
+			-os400*)
+				vendor=ibm
+				;;
+			-ptx*)
+				vendor=sequent
+				;;
+			-tpf*)
+				vendor=ibm
+				;;
+			-vxsim* | -vxworks* | -windiss*)
+				vendor=wrs
+				;;
+			-aux*)
+				vendor=apple
+				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
+			-vos*)
+				vendor=stratus
+				;;
+		esac
+		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+		;;
+esac
+
+echo $basic_machine$os
+exit
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/8.31/configure b/8.31/configure
new file mode 100644
index 0000000..e2de1c8
--- /dev/null
+++ b/8.31/configure
@@ -0,0 +1,20021 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.68 for PCRE 8.31.
+#
+#
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
+# Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1
+
+  test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
+      || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  # We cannot yet assume a decent shell, so we have to provide a
+	# neutralization value for shells without unset; and this also
+	# works around shells that cannot unset nonexistent variables.
+	# Preserve -v and -x to the replacement shell.
+	BASH_ENV=/dev/null
+	ENV=/dev/null
+	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+	export CONFIG_SHELL
+	case $- in # ((((
+	  *v*x* | *x*v* ) as_opts=-vx ;;
+	  *v* ) as_opts=-v ;;
+	  *x* ) as_opts=-x ;;
+	  * ) as_opts= ;;
+	esac
+	exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -p'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -p'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -p'
+  fi
+else
+  as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+if test -x / >/dev/null 2>&1; then
+  as_test_x='test -x'
+else
+  if ls -dL / >/dev/null 2>&1; then
+    as_ls_L_option=L
+  else
+    as_ls_L_option=
+  fi
+  as_test_x='
+    eval sh -c '\''
+      if test -d "$1"; then
+	test -d "$1/.";
+      else
+	case $1 in #(
+	-*)set "./$1";;
+	esac;
+	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+	???[sx]*):;;*)false;;esac;fi
+    '\'' sh
+  '
+fi
+as_executable_p=$as_test_x
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='PCRE'
+PACKAGE_TARNAME='pcre'
+PACKAGE_VERSION='8.31'
+PACKAGE_STRING='PCRE 8.31'
+PACKAGE_BUGREPORT=''
+PACKAGE_URL=''
+
+ac_unique_file="pcre.h.in"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
+LIBOBJS
+LIBBZ2
+LIBZ
+DISTCHECK_CONFIGURE_FLAGS
+EXTRA_LIBPCRECPP_LDFLAGS
+EXTRA_LIBPCREPOSIX_LDFLAGS
+EXTRA_LIBPCRE16_LDFLAGS
+EXTRA_LIBPCRE_LDFLAGS
+PCRE_STATIC_CFLAG
+LIBREADLINE
+WITH_UTF_FALSE
+WITH_UTF_TRUE
+WITH_JIT_FALSE
+WITH_JIT_TRUE
+WITH_REBUILD_CHARTABLES_FALSE
+WITH_REBUILD_CHARTABLES_TRUE
+WITH_PCRE_CPP_FALSE
+WITH_PCRE_CPP_TRUE
+WITH_PCRE16_FALSE
+WITH_PCRE16_TRUE
+WITH_PCRE8_FALSE
+WITH_PCRE8_TRUE
+pcre_have_bits_type_traits
+pcre_have_type_traits
+pcre_have_ulong_long
+pcre_have_long_long
+enable_cpp
+enable_pcre16
+enable_pcre8
+PCRE_DATE
+PCRE_PRERELEASE
+PCRE_MINOR
+PCRE_MAJOR
+CXXCPP
+OTOOL64
+OTOOL
+LIPO
+NMEDIT
+DSYMUTIL
+MANIFEST_TOOL
+RANLIB
+ac_ct_AR
+AR
+LN_S
+NM
+ac_ct_DUMPBIN
+DUMPBIN
+LD
+FGREP
+SED
+LIBTOOL
+OBJDUMP
+DLLTOOL
+AS
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+EGREP
+GREP
+CPP
+am__fastdepCXX_FALSE
+am__fastdepCXX_TRUE
+CXXDEPMODE
+ac_ct_CXX
+CXXFLAGS
+CXX
+am__fastdepCC_FALSE
+am__fastdepCC_TRUE
+CCDEPMODE
+AMDEPBACKSLASH
+AMDEP_FALSE
+AMDEP_TRUE
+am__quote
+am__include
+DEPDIR
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+AM_BACKSLASH
+AM_DEFAULT_VERBOSITY
+am__untar
+am__tar
+AMTAR
+am__leading_dot
+SET_MAKE
+AWK
+mkdir_p
+MKDIR_P
+INSTALL_STRIP_PROGRAM
+STRIP
+install_sh
+MAKEINFO
+AUTOHEADER
+AUTOMAKE
+AUTOCONF
+ACLOCAL
+VERSION
+PACKAGE
+CYGPATH_W
+am__isrc
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+enable_silent_rules
+enable_dependency_tracking
+enable_shared
+enable_static
+with_pic
+enable_fast_install
+with_gnu_ld
+with_sysroot
+enable_libtool_lock
+enable_pcre8
+enable_pcre16
+enable_cpp
+enable_jit
+enable_pcregrep_jit
+enable_rebuild_chartables
+enable_utf8
+enable_utf
+enable_unicode_properties
+enable_newline_is_cr
+enable_newline_is_lf
+enable_newline_is_crlf
+enable_newline_is_anycrlf
+enable_newline_is_any
+enable_bsr_anycrlf
+enable_ebcdic
+enable_stack_for_recursion
+enable_pcregrep_libz
+enable_pcregrep_libbz2
+with_pcregrep_bufsize
+enable_pcretest_libedit
+enable_pcretest_libreadline
+with_posix_malloc_threshold
+with_link_size
+with_match_limit
+with_match_limit_recursion
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CXX
+CXXFLAGS
+CCC
+CPP
+CXXCPP'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+    $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
+    If a cross compiler is detected then cross compile mode will be used" >&2
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures PCRE 8.31 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/pcre]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of PCRE 8.31:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-silent-rules          less verbose build output (undo: `make V=1')
+  --disable-silent-rules         verbose build output (undo: `make V=0')
+  --disable-dependency-tracking  speeds up one-time build
+  --enable-dependency-tracking   do not reject slow dependency extractors
+  --enable-shared[=PKGS]  build shared libraries [default=yes]
+  --enable-static[=PKGS]  build static libraries [default=yes]
+  --enable-fast-install[=PKGS]
+                          optimize for fast installation [default=yes]
+  --disable-libtool-lock  avoid locking (might break parallel builds)
+  --disable-pcre8         disable 8 bit character support
+  --enable-pcre16         enable 16 bit character support
+  --disable-cpp           disable C++ support
+  --enable-jit            enable Just-In-Time compiling support
+  --disable-pcregrep-jit  disable JIT support in pcregrep
+  --enable-rebuild-chartables
+                          rebuild character tables in current locale
+  --enable-utf8           another name for --enable-utf. Kept only for
+                          compatibility reasons
+  --enable-utf            enable UTF-8/16 support (incompatible with
+                          --enable-ebcdic)
+  --enable-unicode-properties
+                          enable Unicode properties support (implies
+                          --enable-utf)
+  --enable-newline-is-cr  use CR as newline character
+  --enable-newline-is-lf  use LF as newline character (default)
+  --enable-newline-is-crlf
+                          use CRLF as newline sequence
+  --enable-newline-is-anycrlf
+                          use CR, LF, or CRLF as newline sequence
+  --enable-newline-is-any use any valid Unicode newline sequence
+  --enable-bsr-anycrlf    \R matches only CR, LF, CRLF by default
+  --enable-ebcdic         assume EBCDIC coding rather than ASCII; incompatible
+                          with --enable-utf; use only in (uncommon) EBCDIC
+                          environments; it implies --enable-rebuild-chartables
+  --disable-stack-for-recursion
+                          don't use stack recursion when matching
+  --enable-pcregrep-libz  link pcregrep with libz to handle .gz files
+  --enable-pcregrep-libbz2
+                          link pcregrep with libbz2 to handle .bz2 files
+  --enable-pcretest-libedit
+                          link pcretest with libedit
+  --enable-pcretest-libreadline
+                          link pcretest with libreadline
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-pic              try to use only PIC/non-PIC objects [default=use
+                          both]
+  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-sysroot=DIR Search for dependent libraries within DIR
+                        (or the compiler's sysroot if not specified).
+  --with-pcregrep-bufsize=N
+                          pcregrep buffer size (default=20480)
+  --with-posix-malloc-threshold=NBYTES
+                          threshold for POSIX malloc usage (default=10)
+  --with-link-size=N      internal link size (2, 3, or 4 allowed; default=2)
+  --with-match-limit=N    default limit on internal looping (default=10000000)
+  --with-match-limit-recursion=N
+                          default limit on internal recursion
+                          (default=MATCH_LIMIT)
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
+  CPP         C preprocessor
+  CXXCPP      C++ preprocessor
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to the package provider.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+PCRE configure 8.31
+generated by GNU Autoconf 2.68
+
+Copyright (C) 2010 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_cxx_try_compile LINENO
+# ----------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_find_intX_t LINENO BITS VAR
+# -----------------------------------
+# Finds a signed integer type with width BITS, setting cache variable VAR
+# accordingly.
+ac_fn_c_find_intX_t ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for int$2_t" >&5
+$as_echo_n "checking for int$2_t... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+     # Order is important - never check a type that is potentially smaller
+     # than half of the expected target width.
+     for ac_type in int$2_t 'int' 'long int' \
+	 'long long int' 'short int' 'signed char'; do
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_includes_default
+	     enum { N = $2 / 2 - 1 };
+int
+main ()
+{
+static int test_array [1 - 2 * !(0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1))];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_includes_default
+	        enum { N = $2 / 2 - 1 };
+int
+main ()
+{
+static int test_array [1 - 2 * !(($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)
+		 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 2))];
+test_array [0] = 0
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  case $ac_type in #(
+  int$2_t) :
+    eval "$3=yes" ;; #(
+  *) :
+    eval "$3=\$ac_type" ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       if eval test \"x\$"$3"\" = x"no"; then :
+
+else
+  break
+fi
+     done
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_find_intX_t
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_func
+
+# ac_fn_cxx_try_cpp LINENO
+# ------------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_cpp
+
+# ac_fn_cxx_try_link LINENO
+# -------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_link
+
+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_cxx_check_header_mongrel LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_cxx_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_cxx_check_header_mongrel
+
+# ac_fn_cxx_check_type LINENO TYPE VAR INCLUDES
+# ---------------------------------------------
+# Tests whether TYPE exists after having included INCLUDES, setting cache
+# variable VAR accordingly.
+ac_fn_cxx_check_type ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof ($2))
+	 return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof (($2)))
+	    return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  eval "$3=yes"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_cxx_check_type
+
+# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
+# -------------------------------------------
+# Tests whether TYPE exists after having included INCLUDES, setting cache
+# variable VAR accordingly.
+ac_fn_c_check_type ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof ($2))
+	 return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof (($2)))
+	    return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  eval "$3=yes"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_type
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by PCRE $as_me 8.31, which was
+generated by GNU Autoconf 2.68.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+am__api_version='1.11'
+
+ac_aux_dir=
+for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+  ./ | .// | /[cC]/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    rm -rf conftest.one conftest.two conftest.dir
+	    echo one > conftest.one
+	    echo two > conftest.two
+	    mkdir conftest.dir
+	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+	      test -s conftest.one && test -s conftest.two &&
+	      test -s conftest.dir/conftest.one &&
+	      test -s conftest.dir/conftest.two
+	    then
+	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	      break 3
+	    fi
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+
+  done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+$as_echo_n "checking whether build environment is sane... " >&6; }
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[\\\"\#\$\&\'\`$am_lf]*)
+    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
+    as_fn_error $? "unsafe srcdir value: \`$srcdir'" "$LINENO" 5;;
+esac
+
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+   if test "$*" = "X"; then
+      # -L didn't work.
+      set X `ls -t "$srcdir/configure" conftest.file`
+   fi
+   rm -f conftest.file
+   if test "$*" != "X $srcdir/configure conftest.file" \
+      && test "$*" != "X conftest.file $srcdir/configure"; then
+
+      # If neither matched, then we have a broken ls.  This can happen
+      # if, for instance, CONFIG_SHELL is bash and it inherits a
+      # broken ls alias from the environment.  This has actually
+      # happened.  Such a system could not be considered "sane".
+      as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+alias in your environment" "$LINENO" 5
+   fi
+
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+test "$program_prefix" != NONE &&
+  program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.
+# By default was `s,x,x', remove it if useless.
+ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
+program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
+
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+  am_missing_run="$MISSING --run "
+else
+  am_missing_run=
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'.  However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
+$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+  if ${ac_cv_path_mkdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; } || continue
+	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir (GNU coreutils) '* | \
+	     'mkdir (coreutils) '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+  done
+IFS=$as_save_IFS
+
+fi
+
+  test -d ./--version && rmdir ./--version
+  if test "${ac_cv_path_mkdir+set}" = set; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+$as_echo "$MKDIR_P" >&6; }
+
+mkdir_p="$MKDIR_P"
+case $mkdir_p in
+  [\\/$]* | ?:[\\/]*) ;;
+  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
+esac
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AWK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_AWK="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  SET_MAKE=
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='pcre'
+ VERSION='8.31'
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+# Always define AMTAR for backward compatibility.
+
+AMTAR=${AMTAR-"${am_missing_run}tar"}
+
+am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
+
+
+
+
+
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in
+yes) AM_DEFAULT_VERBOSITY=0;;
+no)  AM_DEFAULT_VERBOSITY=1;;
+*)   AM_DEFAULT_VERBOSITY=0;;
+esac
+AM_BACKSLASH='\'
+
+ac_config_headers="$ac_config_headers config.h"
+
+
+# This was added at the suggestion of libtoolize (03-Jan-10)
+
+
+# The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just
+# "-g" for any other compiler. There doesn't seem to be a standard way of
+# getting rid of the -g (which I don't think is needed for a production
+# library). This fudge seems to achieve the necessary. First, we remember the
+# externally set values of CFLAGS and CXXFLAGS. Then call the AC_PROG_CC and
+# AC_PROG_CXX macros to find the compilers - if CFLAGS and CXXFLAGS are not
+# set, they will be set to Autoconf's defaults. Afterwards, if the original
+# values were not set, remove the -g from the Autoconf defaults.
+# (PH 02-May-07)
+
+remember_set_CFLAGS="$CFLAGS"
+remember_set_CXXFLAGS="$CXXFLAGS"
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo this is the am__doit target
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
+$as_echo_n "checking for style of include used by $am_make... " >&6; }
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# Ignore all kinds of additional output from `make'.
+case `$am_make -s -f confmf 2> /dev/null` in #(
+*the\ am__doit\ target*)
+  am__include=include
+  am__quote=
+  _am_result=GNU
+  ;;
+esac
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   case `$am_make -s -f confmf 2> /dev/null` in #(
+   *the\ am__doit\ target*)
+     am__include=.include
+     am__quote="\""
+     _am_result=BSD
+     ;;
+   esac
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
+$as_echo "$_am_result" >&6; }
+rm -f confinc confmf
+
+# Check whether --enable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then :
+  enableval=$enable_dependency_tracking;
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+fi
+ if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+
+depcc="$CC"   am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CC_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+      # Solaris 8's {/usr,}/bin/sh.
+      touch sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvisualcpp | msvcmsys)
+      # This compiler won't grok `-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+  if test -n "$CCC"; then
+    CXX=$CCC
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+$as_echo "$ac_ct_CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CXX" && break
+done
+
+  if test "x$ac_ct_CXX" = x; then
+    CXX="g++"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CXX=$ac_ct_CXX
+  fi
+fi
+
+  fi
+fi
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
+$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
+if ${ac_cv_cxx_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GXX=yes
+else
+  GXX=
+fi
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+$as_echo_n "checking whether $CXX accepts -g... " >&6; }
+if ${ac_cv_prog_cxx_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+   ac_cxx_werror_flag=yes
+   ac_cv_prog_cxx_g=no
+   CXXFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+else
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+	 CXXFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+$as_echo "$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CXX"  am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CXX_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named `D' -- because `-MD' means `put the output
+  # in D'.
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CXX_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
+      # Solaris 8's {/usr,}/bin/sh.
+      touch sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # after this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvisualcpp | msvcmsys)
+      # This compiler won't grok `-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CXX_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CXX_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CXX_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CXX_dependencies_compiler_type" >&6; }
+CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
+  am__fastdepCXX_TRUE=
+  am__fastdepCXX_FALSE='#'
+else
+  am__fastdepCXX_TRUE='#'
+  am__fastdepCXX_FALSE=
+fi
+
+
+
+if test "x$remember_set_CFLAGS" = "x"
+then
+  if test "$CFLAGS" = "-g -O2"
+  then
+    CFLAGS="-O2"
+  elif test "$CFLAGS" = "-g"
+  then
+    CFLAGS=""
+  fi
+fi
+
+if test "x$remember_set_CXXFLAGS" = "x"
+then
+  if test "$CXXFLAGS" = "-g -O2"
+  then
+    CXXFLAGS="-O2"
+  elif test "$CXXFLAGS" = "-g"
+  then
+    CXXFLAGS=""
+  fi
+fi
+
+# AC_PROG_CXX will return "g++" even if no c++ compiler is installed.
+# Check for that case, and just disable c++ code if g++ doesn't run.
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  CXX=""; CXXCP=""; CXXFLAGS=""
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Check for a 64-bit integer type
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+ac_fn_c_find_intX_t "$LINENO" "64" "ac_cv_c_int64_t"
+case $ac_cv_c_int64_t in #(
+  no|yes) ;; #(
+  *)
+
+cat >>confdefs.h <<_ACEOF
+#define int64_t $ac_cv_c_int64_t
+_ACEOF
+;;
+esac
+
+
+
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if ${ac_cv_build+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if ${ac_cv_host+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args.
+set dummy ${ac_tool_prefix}as; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AS"; then
+  ac_cv_prog_AS="$AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_AS="${ac_tool_prefix}as"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AS=$ac_cv_prog_AS
+if test -n "$AS"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
+$as_echo "$AS" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AS"; then
+  ac_ct_AS=$AS
+  # Extract the first word of "as", so it can be a program name with args.
+set dummy as; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AS"; then
+  ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_AS="as"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AS=$ac_cv_prog_ac_ct_AS
+if test -n "$ac_ct_AS"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5
+$as_echo "$ac_ct_AS" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AS" = x; then
+    AS="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AS=$ac_ct_AS
+  fi
+else
+  AS="$ac_cv_prog_AS"
+fi
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+$as_echo "$DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+  ac_ct_DLLTOOL=$DLLTOOL
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DLLTOOL"; then
+  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+$as_echo "$ac_ct_DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DLLTOOL" = x; then
+    DLLTOOL="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DLLTOOL=$ac_ct_DLLTOOL
+  fi
+else
+  DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+$as_echo "$OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+$as_echo "$ac_ct_OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+  ;;
+esac
+
+test -z "$AS" && AS=as
+
+
+
+
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+
+case `pwd` in
+  *\ * | *\	*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
+$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
+esac
+
+
+
+macro_version='2.4'
+macro_revision='1.3293'
+
+
+
+
+
+
+
+
+
+
+
+
+
+ltmain="$ac_aux_dir/ltmain.sh"
+
+# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+
+ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
+$as_echo_n "checking how to print strings... " >&6; }
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO ""
+}
+
+case "$ECHO" in
+  printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5
+$as_echo "printf" >&6; } ;;
+  print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
+$as_echo "print -r" >&6; } ;;
+  *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: cat" >&5
+$as_echo "cat" >&6; } ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+$as_echo_n "checking for fgrep... " >&6; }
+if ${ac_cv_path_FGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+   then ac_cv_path_FGREP="$GREP -F"
+   else
+     if test -z "$FGREP"; then
+  ac_path_FGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in fgrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
+      { test -f "$ac_path_FGREP" && $as_test_x "$ac_path_FGREP"; } || continue
+# Check for GNU ac_path_FGREP and select it if it is found.
+  # Check for GNU $ac_path_FGREP
+case `"$ac_path_FGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'FGREP' >> "conftest.nl"
+    "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_FGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_FGREP="$ac_path_FGREP"
+      ac_path_FGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_FGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_FGREP"; then
+    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_FGREP=$FGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+$as_echo "$ac_cv_path_FGREP" >&6; }
+ FGREP="$ac_cv_path_FGREP"
+
+
+test -z "$GREP" && GREP=grep
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
+$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
+if ${lt_cv_path_NM+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM="$NM"
+else
+  lt_nm_to_check="${ac_tool_prefix}nm"
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS="$lt_save_ifs"
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm="$ac_dir/$lt_tmp_nm"
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
+	*/dev/null* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS="$lt_save_ifs"
+  done
+  : ${lt_cv_path_NM=no}
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
+$as_echo "$lt_cv_path_NM" >&6; }
+if test "$lt_cv_path_NM" != "no"; then
+  NM="$lt_cv_path_NM"
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in dumpbin "link -dump"
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DUMPBIN"; then
+  ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DUMPBIN=$ac_cv_prog_DUMPBIN
+if test -n "$DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
+$as_echo "$DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$DUMPBIN" && break
+  done
+fi
+if test -z "$DUMPBIN"; then
+  ac_ct_DUMPBIN=$DUMPBIN
+  for ac_prog in dumpbin "link -dump"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DUMPBIN"; then
+  ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
+if test -n "$ac_ct_DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
+$as_echo "$ac_ct_DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_DUMPBIN" && break
+done
+
+  if test "x$ac_ct_DUMPBIN" = x; then
+    DUMPBIN=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DUMPBIN=$ac_ct_DUMPBIN
+  fi
+fi
+
+    case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+
+  if test "$DUMPBIN" != ":"; then
+    NM="$DUMPBIN"
+  fi
+fi
+test -z "$NM" && NM=nm
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
+$as_echo_n "checking the name lister ($NM) interface... " >&6; }
+if ${lt_cv_nm_interface+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: output\"" >&5)
+  cat conftest.out >&5
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
+$as_echo "$lt_cv_nm_interface" >&6; }
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+$as_echo_n "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+$as_echo "no, using $LN_S" >&6; }
+fi
+
+# find the maximum length of command line arguments
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
+$as_echo_n "checking the maximum length of command line arguments... " >&6; }
+if ${lt_cv_sys_max_cmd_len+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+    i=0
+  teststring="ABCD"
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[	 ]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8 ; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test "X"`func_fallback_echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test $i != 17 # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+
+fi
+
+if test -n $lt_cv_sys_max_cmd_len ; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
+$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
+$as_echo "none" >&6; }
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+
+
+
+
+
+: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5
+$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; }
+# Try some XSI features
+xsi_shell=no
+( _lt_dummy="a/b/c"
+  test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \
+      = c,a/b,b/c, \
+    && eval 'test $(( 1 + 1 )) -eq 2 \
+    && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
+  && xsi_shell=yes
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5
+$as_echo "$xsi_shell" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5
+$as_echo_n "checking whether the shell understands \"+=\"... " >&6; }
+lt_shell_append=no
+( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \
+    >/dev/null 2>&1 \
+  && lt_shell_append=yes
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5
+$as_echo "$lt_shell_append" >&6; }
+
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+
+
+
+
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
+$as_echo_n "checking how to convert $build file names to $host format... " >&6; }
+if ${lt_cv_to_host_file_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+
+fi
+
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
+$as_echo "$lt_cv_to_host_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
+$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; }
+if ${lt_cv_to_tool_file_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  #assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+
+fi
+
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
+$as_echo "$lt_cv_to_tool_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
+$as_echo_n "checking for $LD option to reload object files... " >&6; }
+if ${lt_cv_ld_reload_flag+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_reload_flag='-r'
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
+$as_echo "$lt_cv_ld_reload_flag" >&6; }
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    if test "$GCC" != yes; then
+      reload_cmds=false
+    fi
+    ;;
+  darwin*)
+    if test "$GCC" = yes; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+$as_echo "$OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+$as_echo "$ac_ct_OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
+$as_echo_n "checking how to recognize dependent libraries... " >&6; }
+if ${lt_cv_deplibs_check_method+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# `unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# which responds to the $file_magic_cmd with a given extended regex.
+# If you have `file' or equivalent on your system and you're not sure
+# whether `pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[4-9]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[45]*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
+  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[3-9]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be Linux ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
+$as_echo "$lt_cv_deplibs_check_method" >&6; }
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+$as_echo "$DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+  ac_ct_DLLTOOL=$DLLTOOL
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DLLTOOL"; then
+  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+$as_echo "$ac_ct_DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DLLTOOL" = x; then
+    DLLTOOL="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DLLTOOL=$ac_ct_DLLTOOL
+  fi
+else
+  DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
+$as_echo_n "checking how to associate runtime and link libraries... " >&6; }
+if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh
+  # decide which to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd="$ECHO"
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
+$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in ar
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$AR" && break
+  done
+fi
+if test -z "$AR"; then
+  ac_ct_AR=$AR
+  for ac_prog in ar
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_AR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_AR" && break
+done
+
+  if test "x$ac_ct_AR" = x; then
+    AR="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+fi
+
+: ${AR=ar}
+: ${AR_FLAGS=cru}
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
+$as_echo_n "checking for archiver @FILE support... " >&6; }
+if ${lt_cv_ar_at_file+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ar_at_file=no
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5'
+      { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+      if test "$ac_status" -eq 0; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	if test "$ac_status" -ne 0; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
+$as_echo "$lt_cv_ar_at_file" >&6; }
+
+if test "x$lt_cv_ar_at_file" = xno; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+test -z "$STRIP" && STRIP=:
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+test -z "$RANLIB" && RANLIB=:
+
+
+
+
+
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
+$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
+if ${lt_cv_sys_global_symbol_pipe+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*)
+  if test "$host_cpu" = ia64; then
+    symcode='[ABCDEGRST]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[BCDEGRST]'
+  ;;
+osf*)
+  symcode='[BCDEGQRST]'
+  ;;
+solaris*)
+  symcode='[BDRT]'
+  ;;
+sco3.2v5*)
+  symcode='[DT]'
+  ;;
+sysv4.2uw2*)
+  symcode='[DT]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[ABDT]'
+  ;;
+sysv4)
+  symcode='[DFNSTU]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[ABCDGIRSTW]' ;;
+esac
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\)[ ]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\)[ ]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/  {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"lib\2\", (void *) \&\2},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function
+    # and D for any global variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK '"\
+"     {last_section=section; section=\$ 3};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
+"     {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
+"     s[1]~/^[@?]/{print s[1], s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[	 ]\($symcode$symcode*\)[	 ][	 ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
+  (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
+/* DATA imports from DLLs on WIN32 con't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined(__osf__)
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS="conftstm.$ac_objext"
+	  CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext}; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&5
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+
+fi
+
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
+$as_echo_n "checking for sysroot... " >&6; }
+
+# Check whether --with-sysroot was given.
+if test "${with_sysroot+set}" = set; then :
+  withval=$with_sysroot;
+else
+  with_sysroot=no
+fi
+
+
+lt_sysroot=
+case ${with_sysroot} in #(
+ yes)
+   if test "$GCC" = yes; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${with_sysroot}" >&5
+$as_echo "${with_sysroot}" >&6; }
+   as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
+   ;;
+esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
+$as_echo "${lt_sysroot:-no}" >&6; }
+
+
+
+
+
+# Check whether --enable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then :
+  enableval=$enable_libtool_lock;
+fi
+
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE="32"
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE="64"
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out which ABI we are using.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    if test "$lt_cv_prog_gnu_ld" = yes; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_i386"
+	    ;;
+	  ppc64-*linux*|powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  ppc*-*linux*|powerpc*-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -belf"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
+$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
+if ${lt_cv_cc_needs_belf+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_cc_needs_belf=yes
+else
+  lt_cv_cc_needs_belf=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+     ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
+$as_echo "$lt_cv_cc_needs_belf" >&6; }
+  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS="$SAVE_CFLAGS"
+  fi
+  ;;
+sparc*-*solaris*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*) LD="${LD-ld} -m elf64_sparc" ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks="$enable_libtool_lock"
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MANIFEST_TOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$MANIFEST_TOOL"; then
+  ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
+if test -n "$MANIFEST_TOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
+$as_echo "$MANIFEST_TOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
+  ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
+  # Extract the first word of "mt", so it can be a program name with args.
+set dummy mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_MANIFEST_TOOL"; then
+  ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
+if test -n "$ac_ct_MANIFEST_TOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
+$as_echo "$ac_ct_MANIFEST_TOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_MANIFEST_TOOL" = x; then
+    MANIFEST_TOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
+  fi
+else
+  MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL"
+fi
+
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
+$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
+if ${lt_cv_path_mainfest_tool+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&5
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
+$as_echo "$lt_cv_path_mainfest_tool" >&6; }
+if test "x$lt_cv_path_mainfest_tool" != xyes; then
+  MANIFEST_TOOL=:
+fi
+
+
+
+
+
+
+  case $host_os in
+    rhapsody* | darwin*)
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DSYMUTIL"; then
+  ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DSYMUTIL=$ac_cv_prog_DSYMUTIL
+if test -n "$DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
+$as_echo "$DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DSYMUTIL"; then
+  ac_ct_DSYMUTIL=$DSYMUTIL
+  # Extract the first word of "dsymutil", so it can be a program name with args.
+set dummy dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DSYMUTIL"; then
+  ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
+if test -n "$ac_ct_DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
+$as_echo "$ac_ct_DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DSYMUTIL" = x; then
+    DSYMUTIL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DSYMUTIL=$ac_ct_DSYMUTIL
+  fi
+else
+  DSYMUTIL="$ac_cv_prog_DSYMUTIL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
+set dummy ${ac_tool_prefix}nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NMEDIT"; then
+  ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+NMEDIT=$ac_cv_prog_NMEDIT
+if test -n "$NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
+$as_echo "$NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_NMEDIT"; then
+  ac_ct_NMEDIT=$NMEDIT
+  # Extract the first word of "nmedit", so it can be a program name with args.
+set dummy nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_NMEDIT"; then
+  ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_NMEDIT="nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
+if test -n "$ac_ct_NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
+$as_echo "$ac_ct_NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_NMEDIT" = x; then
+    NMEDIT=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    NMEDIT=$ac_ct_NMEDIT
+  fi
+else
+  NMEDIT="$ac_cv_prog_NMEDIT"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
+set dummy ${ac_tool_prefix}lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$LIPO"; then
+  ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LIPO=$ac_cv_prog_LIPO
+if test -n "$LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
+$as_echo "$LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_LIPO"; then
+  ac_ct_LIPO=$LIPO
+  # Extract the first word of "lipo", so it can be a program name with args.
+set dummy lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_LIPO"; then
+  ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_LIPO="lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
+if test -n "$ac_ct_LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
+$as_echo "$ac_ct_LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_LIPO" = x; then
+    LIPO=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    LIPO=$ac_ct_LIPO
+  fi
+else
+  LIPO="$ac_cv_prog_LIPO"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL"; then
+  ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL=$ac_cv_prog_OTOOL
+if test -n "$OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
+$as_echo "$OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL"; then
+  ac_ct_OTOOL=$OTOOL
+  # Extract the first word of "otool", so it can be a program name with args.
+set dummy otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL"; then
+  ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_OTOOL="otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
+if test -n "$ac_ct_OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
+$as_echo "$ac_ct_OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL" = x; then
+    OTOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL=$ac_ct_OTOOL
+  fi
+else
+  OTOOL="$ac_cv_prog_OTOOL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL64"; then
+  ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL64=$ac_cv_prog_OTOOL64
+if test -n "$OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
+$as_echo "$OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL64"; then
+  ac_ct_OTOOL64=$OTOOL64
+  # Extract the first word of "otool64", so it can be a program name with args.
+set dummy otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL64"; then
+  ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_OTOOL64="otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
+if test -n "$ac_ct_OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
+$as_echo "$ac_ct_OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL64" = x; then
+    OTOOL64=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL64=$ac_ct_OTOOL64
+  fi
+else
+  OTOOL64="$ac_cv_prog_OTOOL64"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
+$as_echo_n "checking for -single_module linker flag... " >&6; }
+if ${lt_cv_apple_cc_single_mod+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_apple_cc_single_mod=no
+      if test -z "${LT_MULTI_MODULE}"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&5
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	if test -f libconftest.dylib && test ! -s conftest.err && test $_lt_result = 0; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&5
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
+$as_echo "$lt_cv_apple_cc_single_mod" >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
+$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
+if ${lt_cv_ld_exported_symbols_list+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_ld_exported_symbols_list=yes
+else
+  lt_cv_ld_exported_symbols_list=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
+$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
+$as_echo_n "checking for -force_load linker flag... " >&6; }
+if ${lt_cv_ld_force_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
+      echo "$AR cru libconftest.a conftest.o" >&5
+      $AR cru libconftest.a conftest.o 2>&5
+      echo "$RANLIB libconftest.a" >&5
+      $RANLIB libconftest.a 2>&5
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -f conftest && test ! -s conftest.err && test $_lt_result = 0 && $GREP forced_load conftest 2>&1 >/dev/null; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&5
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
+$as_echo "$lt_cv_ld_force_load" >&6; }
+    case $host_os in
+    rhapsody* | darwin1.[012])
+      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+    darwin*) # darwin 5.x on
+      # if running on 10.5 or later, the deployment target defaults
+      # to the OS version, if on x86, and 10.4, the deployment
+      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	10.[012]*)
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	10.*)
+	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test "$lt_cv_apple_cc_single_mod" = "yes"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
+      _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    fi
+    if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+
+for ac_header in dlfcn.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
+"
+if test "x$ac_cv_header_dlfcn_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DLFCN_H 1
+_ACEOF
+
+fi
+
+done
+
+
+
+func_stripname_cnf ()
+{
+  case ${2} in
+  .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
+  *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+  esac
+} # func_stripname_cnf
+
+
+
+
+
+# Set options
+
+
+
+        enable_dlopen=no
+
+
+
+            # Check whether --enable-shared was given.
+if test "${enable_shared+set}" = set; then :
+  enableval=$enable_shared; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_shared=yes
+fi
+
+
+
+
+
+
+
+
+
+  # Check whether --enable-static was given.
+if test "${enable_static+set}" = set; then :
+  enableval=$enable_static; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_static=yes
+fi
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-pic was given.
+if test "${with_pic+set}" = set; then :
+  withval=$with_pic; pic_mode="$withval"
+else
+  pic_mode=default
+fi
+
+
+test -z "$pic_mode" && pic_mode=default
+
+
+
+
+
+
+
+  # Check whether --enable-fast-install was given.
+if test "${enable_fast_install+set}" = set; then :
+  enableval=$enable_fast_install; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_fast_install=yes
+fi
+
+
+
+
+
+
+
+
+
+
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS="$ltmain"
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+test -z "$LN_S" && LN_S="ln -s"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
+$as_echo_n "checking for objdir... " >&6; }
+if ${lt_cv_objdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
+$as_echo "$lt_cv_objdir" >&6; }
+objdir=$lt_cv_objdir
+
+
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define LT_OBJDIR "$lt_cv_objdir/"
+_ACEOF
+
+
+
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "X${COLLECT_NAMES+set}" != Xset; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a `.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld="$lt_cv_prog_gnu_ld"
+
+old_CC="$CC"
+old_CFLAGS="$CFLAGS"
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+for cc_temp in $compiler""; do
+  case $cc_temp in
+    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
+$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/${ac_tool_prefix}file; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac
+fi
+
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
+$as_echo_n "checking for file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/file; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac
+fi
+
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  else
+    MAGIC_CMD=:
+  fi
+fi
+
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+
+lt_save_CC="$CC"
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+objext=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+if test -n "$compiler"; then
+
+lt_prog_compiler_no_builtin_flag=
+
+if test "$GCC" = yes; then
+  case $cc_basename in
+  nvcc*)
+    lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
+  *)
+    lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
+  esac
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
+if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_rtti_exceptions=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="-fno-rtti -fno-exceptions"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_rtti_exceptions=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
+
+if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
+    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
+else
+    :
+fi
+
+fi
+
+
+
+
+
+
+  lt_prog_compiler_wl=
+lt_prog_compiler_pic=
+lt_prog_compiler_static=
+
+
+  if test "$GCC" = yes; then
+    lt_prog_compiler_wl='-Wl,'
+    lt_prog_compiler_static='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      lt_prog_compiler_wl='-Xlinker '
+      lt_prog_compiler_pic='-Xcompiler -fPIC'
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl='-Wl,'
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      else
+	lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu)
+      case $cc_basename in
+      # old Intel for x86_64 which still supported -KPIC.
+      ecc*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-KPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='--shared'
+	lt_prog_compiler_static='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	lt_prog_compiler_wl='-Wl,-Wl,,'
+	lt_prog_compiler_pic='-PIC'
+	lt_prog_compiler_static='-Bstatic'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fpic'
+	lt_prog_compiler_static='-Bstatic'
+        ;;
+      ccc*)
+        lt_prog_compiler_wl='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-qpic'
+	lt_prog_compiler_static='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ F* | *Sun*Fortran*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl=''
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Wl,'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    rdos*)
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	lt_prog_compiler_wl='-Qoption ld ';;
+      *)
+	lt_prog_compiler_wl='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl='-Qoption ld '
+      lt_prog_compiler_pic='-PIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+	lt_prog_compiler_pic='-Kconform_pic'
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    unicos*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_can_build_shared=no
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic='-pic'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared=no
+      ;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic=
+    ;;
+  *)
+    lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
+$as_echo "$lt_cv_prog_compiler_pic" >&6; }
+lt_prog_compiler_pic=$lt_cv_prog_compiler_pic
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic -DPIC"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
+
+if test x"$lt_cv_prog_compiler_pic_works" = xyes; then
+    case $lt_prog_compiler_pic in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
+     esac
+else
+    lt_prog_compiler_pic=
+     lt_prog_compiler_can_build_shared=no
+fi
+
+fi
+
+
+
+
+
+
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
+$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
+
+if test x"$lt_cv_prog_compiler_static_works" = xyes; then
+    :
+else
+    lt_prog_compiler_static=
+fi
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test "$hard_links" = no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  runpath_var=
+  allow_undefined_flag=
+  always_export_symbols=no
+  archive_cmds=
+  archive_expsym_cmds=
+  compiler_needs_object=no
+  enable_shared_with_static_runtimes=no
+  export_dynamic_flag_spec=
+  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  hardcode_automatic=no
+  hardcode_direct=no
+  hardcode_direct_absolute=no
+  hardcode_libdir_flag_spec=
+  hardcode_libdir_flag_spec_ld=
+  hardcode_libdir_separator=
+  hardcode_minus_L=no
+  hardcode_shlibpath_var=unsupported
+  inherit_rpath=no
+  link_all_deplibs=unknown
+  module_cmds=
+  module_expsym_cmds=
+  old_archive_from_new_cmds=
+  old_archive_from_expsyms_cmds=
+  thread_safe_flag_spec=
+  whole_archive_flag_spec=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  ld_shlibs=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test "$with_gnu_ld" = yes; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;;
+	  *\ \(GNU\ Binutils\)\ [3-9]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test "$lt_use_gnu_ld_interface" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+    export_dynamic_flag_spec='${wl}--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+    else
+      whole_archive_flag_spec=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[3-9]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	allow_undefined_flag=unsupported
+	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec='-L$libdir'
+      export_dynamic_flag_spec='${wl}--export-all-symbols'
+      allow_undefined_flag=unsupported
+      always_export_symbols=no
+      enable_shared_with_static_runtimes=yes
+      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file (1st line
+	# is EXPORTS), use it as is; otherwise, prepend...
+	archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	  cp $export_symbols $output_objdir/$soname.def;
+	else
+	  echo EXPORTS > $output_objdir/$soname.def;
+	  cat $export_symbols >> $output_objdir/$soname.def;
+	fi~
+	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    haiku*)
+      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      link_all_deplibs=yes
+      ;;
+
+    interix[3-9]*)
+      hardcode_direct=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+      export_dynamic_flag_spec='${wl}-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test "$host_os" = linux-dietlibc; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test "$tmp_diet" = no
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  whole_archive_flag_spec=
+	  tmp_sharedflag='--shared' ;;
+	xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  compiler_needs_object=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  compiler_needs_object=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+
+        if test "x$supports_anon_versioning" = xyes; then
+          archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+	    cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	    echo "local: *; };" >> $output_objdir/$libname.ver~
+	    $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
+	  hardcode_libdir_flag_spec=
+	  hardcode_libdir_flag_spec_ld='-rpath $libdir'
+	  archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test "x$supports_anon_versioning" = xyes; then
+	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+	      cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	      echo "local: *; };" >> $output_objdir/$libname.ver~
+	      $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        ld_shlibs=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    ld_shlibs=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+    esac
+
+    if test "$ld_shlibs" = no; then
+      runpath_var=
+      hardcode_libdir_flag_spec=
+      export_dynamic_flag_spec=
+      whole_archive_flag_spec=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag=unsupported
+      always_export_symbols=yes
+      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L=yes
+      if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	hardcode_direct=unsupported
+      fi
+      ;;
+
+    aix[4-9]*)
+      if test "$host_cpu" = ia64; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=""
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to AIX nm, but means don't demangle with GNU nm
+	# Also, AIX nm treats weak defined symbols like other global
+	# defined symbols, whereas GNU nm marks them as "W".
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	else
+	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# need to do runtime linking.
+	case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds=''
+      hardcode_direct=yes
+      hardcode_direct_absolute=yes
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      file_list_spec='${wl}-f,'
+
+      if test "$GCC" = yes; then
+	case $host_os in aix4.[012]|aix4.[012].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  hardcode_direct=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  hardcode_minus_L=yes
+	  hardcode_libdir_flag_spec='-L$libdir'
+	  hardcode_libdir_separator=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test "$aix_use_runtimelinking" = yes; then
+	  shared_flag="$shared_flag "'${wl}-G'
+	fi
+      else
+	# not using gcc
+	if test "$host_cpu" = ia64; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag='${wl}-G'
+	  else
+	    shared_flag='${wl}-bM:SRE'
+	  fi
+	fi
+      fi
+
+      export_dynamic_flag_spec='${wl}-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols=yes
+      if test "$aix_use_runtimelinking" = yes; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	allow_undefined_flag='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath_+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_="/usr/lib:/lib"
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+        archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+      else
+	if test "$host_cpu" = ia64; then
+	  hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
+	  allow_undefined_flag="-z nodefs"
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath_+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_="/usr/lib:/lib"
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+	 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  no_undefined_flag=' ${wl}-bernotok'
+	  allow_undefined_flag=' ${wl}-berok'
+	  if test "$with_gnu_ld" = yes; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    whole_archive_flag_spec='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    whole_archive_flag_spec='$convenience'
+	  fi
+	  archive_cmds_need_lc=yes
+	  # This is similar to how AIX traditionally builds its shared libraries.
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[45]*)
+      export_dynamic_flag_spec=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl*)
+	# Native MSVC
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	always_export_symbols=yes
+	file_list_spec='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=".dll"
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
+	archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	    sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
+	  else
+	    sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
+	  fi~
+	  $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+	  linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, )='true'
+	enable_shared_with_static_runtimes=yes
+	export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	old_postinstall_cmds='chmod 644 $oldlib'
+	postlink_cmds='lt_outputfile="@OUTPUT@"~
+	  lt_tool_outputfile="@TOOL_OUTPUT@"~
+	  case $lt_outputfile in
+	    *.exe|*.EXE) ;;
+	    *)
+	      lt_outputfile="$lt_outputfile.exe"
+	      lt_tool_outputfile="$lt_tool_outputfile.exe"
+	      ;;
+	  esac~
+	  if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
+	    $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+	    $RM "$lt_outputfile.manifest";
+	  fi'
+	;;
+      *)
+	# Assume MSVC wrapper
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=".dll"
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	old_archive_from_new_cmds='true'
+	# FIXME: Should let the user specify the lib program.
+	old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	enable_shared_with_static_runtimes=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc=no
+  hardcode_direct=no
+  hardcode_automatic=yes
+  hardcode_shlibpath_var=unsupported
+  if test "$lt_cv_ld_force_load" = "yes"; then
+    whole_archive_flag_spec='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+  else
+    whole_archive_flag_spec=''
+  fi
+  link_all_deplibs=yes
+  allow_undefined_flag="$_lt_dar_allow_undefined"
+  case $cc_basename in
+     ifort*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test "$_lt_dar_can_shared" = "yes"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
+    module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
+    archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
+    module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+
+  else
+  ld_shlibs=no
+  fi
+
+      ;;
+
+    dgux*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    freebsd1*)
+      ld_shlibs=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+	archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+	archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_direct=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L=yes
+      export_dynamic_flag_spec='${wl}-E'
+      ;;
+
+    hpux10*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test "$with_gnu_ld" = no; then
+	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+	hardcode_libdir_flag_spec_ld='+b $libdir'
+	hardcode_libdir_separator=:
+	hardcode_direct=yes
+	hardcode_direct_absolute=yes
+	export_dynamic_flag_spec='${wl}-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	hardcode_minus_L=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
+$as_echo_n "checking if $CC understands -b... " >&6; }
+if ${lt_cv_prog_compiler__b+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler__b=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS -b"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler__b=yes
+       fi
+     else
+       lt_cv_prog_compiler__b=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
+$as_echo "$lt_cv_prog_compiler__b" >&6; }
+
+if test x"$lt_cv_prog_compiler__b" = xyes; then
+    archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+else
+    archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+fi
+
+	  ;;
+	esac
+      fi
+      if test "$with_gnu_ld" = no; then
+	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+	hardcode_libdir_separator=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  hardcode_direct=no
+	  hardcode_shlibpath_var=no
+	  ;;
+	*)
+	  hardcode_direct=yes
+	  hardcode_direct_absolute=yes
+	  export_dynamic_flag_spec='${wl}-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  hardcode_minus_L=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
+$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
+if ${lt_cv_irix_exported_symbol+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  save_LDFLAGS="$LDFLAGS"
+	   LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo (void) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_irix_exported_symbol=yes
+else
+  lt_cv_irix_exported_symbol=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+           LDFLAGS="$save_LDFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
+$as_echo "$lt_cv_irix_exported_symbol" >&6; }
+	if test "$lt_cv_irix_exported_symbol" = yes; then
+          archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
+	fi
+      else
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      inherit_rpath=yes
+      link_all_deplibs=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    newsos6)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_shlibpath_var=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd*)
+      if test -f /usr/libexec/ld.so; then
+	hardcode_direct=yes
+	hardcode_shlibpath_var=no
+	hardcode_direct_absolute=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
+	  hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+	  export_dynamic_flag_spec='${wl}-E'
+	else
+	  case $host_os in
+	   openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+	     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+	     hardcode_libdir_flag_spec='-R$libdir'
+	     ;;
+	   *)
+	     archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	     hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+	     ;;
+	  esac
+	fi
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+	$CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	hardcode_libdir_flag_spec='-rpath $libdir'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_separator=:
+      ;;
+
+    solaris*)
+      no_undefined_flag=' -z defs'
+      if test "$GCC" = yes; then
+	wlarc='${wl}'
+	archive_cmds='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='${wl}'
+	  archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_shlibpath_var=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands `-z linker_flag'.  GCC discards it without `$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test "$GCC" = yes; then
+	  whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+	else
+	  whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      link_all_deplibs=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  reload_cmds='$CC -r -o $output$reload_objs'
+	  hardcode_direct=no
+        ;;
+	motorola)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var=no
+      export_dynamic_flag_spec='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	hardcode_shlibpath_var=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	ld_shlibs=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag='${wl}-z,text'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We can NOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      no_undefined_flag='${wl}-z,text'
+      allow_undefined_flag='${wl}-z,nodefs'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='${wl}-R,$libdir'
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      export_dynamic_flag_spec='${wl}-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      ld_shlibs=no
+      ;;
+    esac
+
+    if test x$host_vendor = xsni; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	export_dynamic_flag_spec='${wl}-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
+$as_echo "$ld_shlibs" >&6; }
+test "$ld_shlibs" = no && can_build_shared=no
+
+with_gnu_ld=$with_gnu_ld
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl
+	  pic_flag=$lt_prog_compiler_pic
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag
+	  allow_undefined_flag=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc=no
+	  else
+	    lt_cv_archive_cmds_need_lc=yes
+	  fi
+	  allow_undefined_flag=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc" >&6; }
+      archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+if test "$GCC" = yes; then
+  case $host_os in
+    darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
+    *) lt_awk_arg="/^libraries:/" ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq="s,=\([A-Za-z]:\),\1,g" ;;
+    *) lt_sed_strip_eq="s,=/,/,g" ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary.
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
+    else
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS=" "; FS="/|\n";} {
+  lt_foo="";
+  lt_count=0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo="/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[lt_foo]++; }
+  if (lt_freq[lt_foo] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's,/\([A-Za-z]:\),\1,g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+    library_names_spec='${libname}.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec="$LIB"
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[123]*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  # Handle Gentoo/FreeBSD as it was Linux
+  case $host_vendor in
+    gentoo)
+      version_type=linux ;;
+    *)
+      version_type=freebsd-$objformat ;;
+  esac
+
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+    linux)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      need_lib_prefix=no
+      need_version=no
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
+haiku*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test "$lt_cv_prog_gnu_ld" = yes; then
+		version_type=linux
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Append ld.so.conf contents to the search path
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec="/usr/lib"
+  need_lib_prefix=no
+  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
+  case $host_os in
+    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
+    *)				need_version=no  ;;
+  esac
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+	shlibpath_overrides_runpath=no
+	;;
+      *)
+	shlibpath_overrides_runpath=yes
+	;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext_cmds=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test "$with_gnu_ld" = yes; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test "$dynamic_linker" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
+  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+fi
+if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
+  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" ||
+   test -n "$runpath_var" ||
+   test "X$hardcode_automatic" = "Xyes" ; then
+
+  # We can hardcode non-existent directories.
+  if test "$hardcode_direct" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no &&
+     test "$hardcode_minus_L" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
+$as_echo "$hardcode_action" >&6; }
+
+if test "$hardcode_action" = relink ||
+   test "$inherit_rpath" = yes; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+  if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+
+fi
+
+    ;;
+
+  *)
+    ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
+if test "x$ac_cv_func_shl_load" = xyes; then :
+  lt_cv_dlopen="shl_load"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
+$as_echo_n "checking for shl_load in -ldld... " >&6; }
+if ${ac_cv_lib_dld_shl_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load ();
+int
+main ()
+{
+return shl_load ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_shl_load=yes
+else
+  ac_cv_lib_dld_shl_load=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
+$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
+if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
+  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"
+else
+  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+if test "x$ac_cv_func_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
+$as_echo_n "checking for dlopen in -lsvld... " >&6; }
+if ${ac_cv_lib_svld_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_svld_dlopen=yes
+else
+  ac_cv_lib_svld_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
+$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
+if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
+$as_echo_n "checking for dld_link in -ldld... " >&6; }
+if ${ac_cv_lib_dld_dld_link+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link ();
+int
+main ()
+{
+return dld_link ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_dld_link=yes
+else
+  ac_cv_lib_dld_dld_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
+$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
+if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
+  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
+$as_echo_n "checking whether a program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisbility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
+$as_echo "$lt_cv_dlopen_self" >&6; }
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
+$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self_static+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisbility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
+$as_echo "$lt_cv_dlopen_self_static" >&6; }
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+striplib=
+old_striplib=
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
+$as_echo_n "checking whether stripping libraries is possible... " >&6; }
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP" ; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    fi
+    ;;
+  *)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+  # Report which library types will actually be built
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
+$as_echo_n "checking if libtool supports shared libraries... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
+$as_echo "$can_build_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
+$as_echo_n "checking whether to build shared libraries... " >&6; }
+  test "$can_build_shared" = "no" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test "$enable_shared" = yes && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[4-9]*)
+    if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+      test "$enable_shared" = yes && enable_static=no
+    fi
+    ;;
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
+$as_echo "$enable_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
+$as_echo_n "checking whether to build static libraries... " >&6; }
+  # Make sure either enable_shared or enable_static is yes.
+  test "$enable_shared" = yes || enable_static=yes
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
+$as_echo "$enable_static" >&6; }
+
+
+
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC="$lt_save_CC"
+
+      if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
+    ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
+    (test "X$CXX" != "Xg++"))) ; then
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+  if ${ac_cv_prog_CXXCPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CXXCPP needs to be expanded
+    for CXXCPP in "$CXX -E" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CXXCPP=$CXXCPP
+
+fi
+  CXXCPP=$ac_cv_prog_CXXCPP
+else
+  ac_cv_prog_CXXCPP=$CXXCPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
+ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+else
+  _lt_caught_CXX_error=yes
+fi
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+archive_cmds_need_lc_CXX=no
+allow_undefined_flag_CXX=
+always_export_symbols_CXX=no
+archive_expsym_cmds_CXX=
+compiler_needs_object_CXX=no
+export_dynamic_flag_spec_CXX=
+hardcode_direct_CXX=no
+hardcode_direct_absolute_CXX=no
+hardcode_libdir_flag_spec_CXX=
+hardcode_libdir_flag_spec_ld_CXX=
+hardcode_libdir_separator_CXX=
+hardcode_minus_L_CXX=no
+hardcode_shlibpath_var_CXX=unsupported
+hardcode_automatic_CXX=no
+inherit_rpath_CXX=no
+module_cmds_CXX=
+module_expsym_cmds_CXX=
+link_all_deplibs_CXX=unknown
+old_archive_cmds_CXX=$old_archive_cmds
+reload_flag_CXX=$reload_flag
+reload_cmds_CXX=$reload_cmds
+no_undefined_flag_CXX=
+whole_archive_flag_spec_CXX=
+enable_shared_with_static_runtimes_CXX=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+objext_CXX=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_caught_CXX_error" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+  # save warnings/boilerplate of simple test code
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_CFLAGS=$CFLAGS
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  CFLAGS=$CXXFLAGS
+  compiler=$CC
+  compiler_CXX=$CC
+  for cc_temp in $compiler""; do
+  case $cc_temp in
+    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test "$GXX" = yes; then
+      lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin'
+    else
+      lt_prog_compiler_no_builtin_flag_CXX=
+    fi
+
+    if test "$GXX" = yes; then
+      # Set up default GNU C++ configuration
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test "$with_gnu_ld" = yes; then
+        archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+
+        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+        export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='${wl}'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+        else
+          whole_archive_flag_spec_CXX=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+    ld_shlibs_CXX=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+      aix[4-9]*)
+        if test "$host_cpu" = ia64; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=""
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # need to do runtime linking.
+          case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        archive_cmds_CXX=''
+        hardcode_direct_CXX=yes
+        hardcode_direct_absolute_CXX=yes
+        hardcode_libdir_separator_CXX=':'
+        link_all_deplibs_CXX=yes
+        file_list_spec_CXX='${wl}-f,'
+
+        if test "$GXX" = yes; then
+          case $host_os in aix4.[012]|aix4.[012].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    hardcode_direct_CXX=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    hardcode_minus_L_CXX=yes
+	    hardcode_libdir_flag_spec_CXX='-L$libdir'
+	    hardcode_libdir_separator_CXX=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag="$shared_flag "'${wl}-G'
+	  fi
+        else
+          # not using gcc
+          if test "$host_cpu" = ia64; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test "$aix_use_runtimelinking" = yes; then
+	      shared_flag='${wl}-G'
+	    else
+	      shared_flag='${wl}-bM:SRE'
+	    fi
+          fi
+        fi
+
+        export_dynamic_flag_spec_CXX='${wl}-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        always_export_symbols_CXX=yes
+        if test "$aix_use_runtimelinking" = yes; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          allow_undefined_flag_CXX='-berok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath__CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX="/usr/lib:/lib"
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+          hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
+
+          archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+        else
+          if test "$host_cpu" = ia64; then
+	    hardcode_libdir_flag_spec_CXX='${wl}-R $libdir:/usr/lib:/lib'
+	    allow_undefined_flag_CXX="-z nodefs"
+	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath__CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX="/usr/lib:/lib"
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    no_undefined_flag_CXX=' ${wl}-bernotok'
+	    allow_undefined_flag_CXX=' ${wl}-berok'
+	    if test "$with_gnu_ld" = yes; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      whole_archive_flag_spec_CXX='$convenience'
+	    fi
+	    archive_cmds_need_lc_CXX=yes
+	    # This is similar to how AIX traditionally builds its shared
+	    # libraries.
+	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  allow_undefined_flag_CXX=unsupported
+	  # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  ld_shlibs_CXX=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+	case $GXX,$cc_basename in
+	,cl* | no,cl*)
+	  # Native MSVC
+	  # hardcode_libdir_flag_spec is actually meaningless, as there is
+	  # no search path for DLLs.
+	  hardcode_libdir_flag_spec_CXX=' '
+	  allow_undefined_flag_CXX=unsupported
+	  always_export_symbols_CXX=yes
+	  file_list_spec_CXX='@'
+	  # Tell ltmain to make .lib files, not .a files.
+	  libext=lib
+	  # Tell ltmain to make .dll files, not .so files.
+	  shrext_cmds=".dll"
+	  # FIXME: Setting linknames here is a bad hack.
+	  archive_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
+	  archive_expsym_cmds_CXX='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	      $SED -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
+	    else
+	      $SED -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
+	    fi~
+	    $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+	    linknames='
+	  # The linker will not automatically build a static lib if we build a DLL.
+	  # _LT_TAGVAR(old_archive_from_new_cmds, CXX)='true'
+	  enable_shared_with_static_runtimes_CXX=yes
+	  # Don't use ranlib
+	  old_postinstall_cmds_CXX='chmod 644 $oldlib'
+	  postlink_cmds_CXX='lt_outputfile="@OUTPUT@"~
+	    lt_tool_outputfile="@TOOL_OUTPUT@"~
+	    case $lt_outputfile in
+	      *.exe|*.EXE) ;;
+	      *)
+		lt_outputfile="$lt_outputfile.exe"
+		lt_tool_outputfile="$lt_tool_outputfile.exe"
+		;;
+	    esac~
+	    func_to_tool_file "$lt_outputfile"~
+	    if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
+	      $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+	      $RM "$lt_outputfile.manifest";
+	    fi'
+	  ;;
+	*)
+	  # g++
+	  # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless,
+	  # as there is no search path for DLLs.
+	  hardcode_libdir_flag_spec_CXX='-L$libdir'
+	  export_dynamic_flag_spec_CXX='${wl}--export-all-symbols'
+	  allow_undefined_flag_CXX=unsupported
+	  always_export_symbols_CXX=no
+	  enable_shared_with_static_runtimes_CXX=yes
+
+	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+	    archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	    # If the export-symbols file already is a .def file (1st line
+	    # is EXPORTS), use it as is; otherwise, prepend...
+	    archive_expsym_cmds_CXX='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	      cp $export_symbols $output_objdir/$soname.def;
+	    else
+	      echo EXPORTS > $output_objdir/$soname.def;
+	      cat $export_symbols >> $output_objdir/$soname.def;
+	    fi~
+	    $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	  else
+	    ld_shlibs_CXX=no
+	  fi
+	  ;;
+	esac
+	;;
+      darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc_CXX=no
+  hardcode_direct_CXX=no
+  hardcode_automatic_CXX=yes
+  hardcode_shlibpath_var_CXX=unsupported
+  if test "$lt_cv_ld_force_load" = "yes"; then
+    whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+  else
+    whole_archive_flag_spec_CXX=''
+  fi
+  link_all_deplibs_CXX=yes
+  allow_undefined_flag_CXX="$_lt_dar_allow_undefined"
+  case $cc_basename in
+     ifort*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test "$_lt_dar_can_shared" = "yes"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
+    module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
+    archive_expsym_cmds_CXX="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
+    module_expsym_cmds_CXX="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+       if test "$lt_cv_apple_cc_single_mod" != "yes"; then
+      archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
+      archive_expsym_cmds_CXX="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
+    fi
+
+  else
+  ld_shlibs_CXX=no
+  fi
+
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      freebsd[12]*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        ld_shlibs_CXX=no
+        ;;
+
+      freebsd-elf*)
+        archive_cmds_need_lc_CXX=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        ld_shlibs_CXX=yes
+        ;;
+
+      gnu*)
+        ;;
+
+      haiku*)
+        archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        link_all_deplibs_CXX=yes
+        ;;
+
+      hpux9*)
+        hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+        hardcode_libdir_separator_CXX=:
+        export_dynamic_flag_spec_CXX='${wl}-E'
+        hardcode_direct_CXX=yes
+        hardcode_minus_L_CXX=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            ld_shlibs_CXX=no
+            ;;
+          aCC*)
+            archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test "$GXX" = yes; then
+              archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              ld_shlibs_CXX=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test $with_gnu_ld = no; then
+	  hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+	  hardcode_libdir_separator_CXX=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      export_dynamic_flag_spec_CXX='${wl}-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            hardcode_direct_CXX=no
+            hardcode_shlibpath_var_CXX=no
+            ;;
+          *)
+            hardcode_direct_CXX=yes
+            hardcode_direct_absolute_CXX=yes
+            hardcode_minus_L_CXX=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test $with_gnu_ld = no; then
+	        case $host_cpu in
+	          hppa*64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[3-9]*)
+	hardcode_direct_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	export_dynamic_flag_spec_CXX='${wl}-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	archive_expsym_cmds_CXX='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test "$with_gnu_ld" = no; then
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	      else
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib'
+	      fi
+	    fi
+	    link_all_deplibs_CXX=yes
+	    ;;
+        esac
+        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+        hardcode_libdir_separator_CXX=:
+        inherit_rpath_CXX=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+	    archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        archive_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    archive_cmds_need_lc_CXX=no
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [1-5].* | *pgcpp\ [1-5].*)
+	      prelink_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      old_archive_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+		$RANLIB $oldlib'
+	      archive_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      archive_expsym_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    hardcode_libdir_flag_spec_CXX='${wl}--rpath ${wl}$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    whole_archive_flag_spec_CXX='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    if test "x$supports_anon_versioning" = xyes; then
+	      archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~
+		cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+		echo "local: *; };" >> $output_objdir/$libname.ver~
+		$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      no_undefined_flag_CXX=' -zdefs'
+	      archive_cmds_CXX='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      archive_expsym_cmds_CXX='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
+	      hardcode_libdir_flag_spec_CXX='-R$libdir'
+	      whole_archive_flag_spec_CXX='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	      compiler_needs_object_CXX=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	ld_shlibs_CXX=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  archive_cmds_CXX='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  hardcode_libdir_flag_spec_CXX='-R$libdir'
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        ld_shlibs_CXX=yes
+	;;
+
+      openbsd2*)
+        # C++ shared libraries are fairly broken
+	ld_shlibs_CXX=no
+	;;
+
+      openbsd*)
+	if test -f /usr/libexec/ld.so; then
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	  hardcode_direct_absolute_CXX=yes
+	  archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	    archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
+	    export_dynamic_flag_spec_CXX='${wl}-E'
+	    whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+	        archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+		;;
+	      *)
+	        allow_undefined_flag_CXX=' -expect_unresolved \*'
+	        archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+	          echo "-hidden">> $lib.exp~
+	          $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~
+	          $RM $lib.exp'
+	        hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+		;;
+	    esac
+
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+	      case $host in
+	        osf3*)
+	          archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	        *)
+	          archive_cmds_CXX='$CC -shared $pic_flag -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+	      hardcode_libdir_separator_CXX=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            archive_cmds_need_lc_CXX=yes
+	    no_undefined_flag_CXX=' -zdefs'
+	    archive_cmds_CXX='$CC -G${allow_undefined_flag}  -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	      $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    hardcode_libdir_flag_spec_CXX='-R$libdir'
+	    hardcode_shlibpath_var_CXX=no
+	    case $host_os in
+	      solaris2.[0-5] | solaris2.[0-5].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands `-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    link_all_deplibs_CXX=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      no_undefined_flag_CXX=' ${wl}-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -shared $pic_flag -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      else
+	        # g++ 2.7 appears to require `-G' NOT `-shared' on this
+	        # platform.
+	        archive_cmds_CXX='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      fi
+
+	      hardcode_libdir_flag_spec_CXX='${wl}-R $wl$libdir'
+	      case $host_os in
+		solaris2.[0-5] | solaris2.[0-5].*) ;;
+		*)
+		  whole_archive_flag_spec_CXX='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag_CXX='${wl}-z,text'
+      archive_cmds_need_lc_CXX=no
+      hardcode_shlibpath_var_CXX=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We can NOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	no_undefined_flag_CXX='${wl}-z,text'
+	allow_undefined_flag_CXX='${wl}-z,nodefs'
+	archive_cmds_need_lc_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='${wl}-R,$libdir'
+	hardcode_libdir_separator_CXX=':'
+	link_all_deplibs_CXX=yes
+	export_dynamic_flag_spec_CXX='${wl}-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~
+	      '"$old_archive_cmds_CXX"
+	    reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~
+	      '"$reload_cmds_CXX"
+	    ;;
+	  *)
+	    archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+    esac
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+    test "$ld_shlibs_CXX" = no && can_build_shared=no
+
+    GCC_CXX="$GXX"
+    LD_CXX="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    # Dependencies to place before and after the object being linked:
+predep_objects_CXX=
+postdep_objects_CXX=
+predeps_CXX=
+postdeps_CXX=
+compiler_lib_search_path_CXX=
+
+cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+esac
+
+if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case ${prev}${p} in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test $p = "-L" ||
+          test $p = "-R"; then
+	 prev=$p
+	 continue
+       fi
+
+       # Expand the sysroot to ease extracting the directories later.
+       if test -z "$prev"; then
+         case $p in
+         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+         esac
+       fi
+       case $p in
+       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+       esac
+       if test "$pre_test_object_deps_done" = no; then
+	 case ${prev} in
+	 -L | -R)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$compiler_lib_search_path_CXX"; then
+	     compiler_lib_search_path_CXX="${prev}${p}"
+	   else
+	     compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} ${prev}${p}"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$postdeps_CXX"; then
+	   postdeps_CXX="${prev}${p}"
+	 else
+	   postdeps_CXX="${postdeps_CXX} ${prev}${p}"
+	 fi
+       fi
+       prev=
+       ;;
+
+    *.lto.$objext) ;; # Ignore GCC LTO objects
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+	 if test -z "$predep_objects_CXX"; then
+	   predep_objects_CXX="$p"
+	 else
+	   predep_objects_CXX="$predep_objects_CXX $p"
+	 fi
+       else
+	 if test -z "$postdep_objects_CXX"; then
+	   postdep_objects_CXX="$p"
+	 else
+	   postdep_objects_CXX="$postdep_objects_CXX $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling CXX test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+case $host_os in
+interix[3-9]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  predep_objects_CXX=
+  postdep_objects_CXX=
+  postdeps_CXX=
+  ;;
+
+linux*)
+  case `$CC -V 2>&1 | sed 5q` in
+  *Sun\ C*)
+    # Sun C++ 5.9
+
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    if test "$solaris_use_stlport4" != yes; then
+      postdeps_CXX='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+
+solaris*)
+  case $cc_basename in
+  CC* | sunCC*)
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    # Adding this requires a known-good setup of shared libraries for
+    # Sun compiler versions before 5.6, else PIC objects from an old
+    # archive will be linked into the output, leading to subtle bugs.
+    if test "$solaris_use_stlport4" != yes; then
+      postdeps_CXX='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+esac
+
+
+case " $postdeps_CXX " in
+*" -lc "*) archive_cmds_need_lc_CXX=no ;;
+esac
+ compiler_lib_search_dirs_CXX=
+if test -n "${compiler_lib_search_path_CXX}"; then
+ compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    lt_prog_compiler_wl_CXX=
+lt_prog_compiler_pic_CXX=
+lt_prog_compiler_static_CXX=
+
+
+  # C++ specific cases for pic, static, wl, etc.
+  if test "$GXX" = yes; then
+    lt_prog_compiler_wl_CXX='-Wl,'
+    lt_prog_compiler_static_CXX='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static_CXX='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic_CXX='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic_CXX='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      lt_prog_compiler_pic_CXX=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static_CXX=
+      ;;
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic_CXX=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	lt_prog_compiler_pic_CXX='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic_CXX='-fPIC -shared'
+      ;;
+    *)
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[4-9]*)
+	# All AIX code is PIC.
+	if test "$host_cpu" = ia64; then
+	  # AIX 5 now supports IA64 processor
+	  lt_prog_compiler_static_CXX='-Bstatic'
+	else
+	  lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      mingw* | cygwin* | os2* | pw32* | cegcc*)
+	# This hack is so that the source file can tell whether it is being
+	# built for inclusion in a dll (and should export symbols for example).
+	lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
+	    if test "$host_cpu" != ia64; then
+	      lt_prog_compiler_pic_CXX='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      lt_prog_compiler_pic_CXX='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64 which still supported -KPIC.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fpic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[cC]* | mpixl[cC]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-qpic'
+	    lt_prog_compiler_static_CXX='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      lt_prog_compiler_pic_CXX='-KPIC'
+	      lt_prog_compiler_static_CXX='-Bstatic'
+	      lt_prog_compiler_wl_CXX='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    lt_prog_compiler_pic_CXX='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd*)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        lt_prog_compiler_pic_CXX='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    lt_prog_compiler_wl_CXX='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    lt_prog_compiler_pic_CXX='-pic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	lt_prog_compiler_can_build_shared_CXX=no
+	;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic_CXX=
+    ;;
+  *)
+    lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC"
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_CXX" >&6; }
+lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works_CXX=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works_CXX=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works_CXX" >&6; }
+
+if test x"$lt_cv_prog_compiler_pic_works_CXX" = xyes; then
+    case $lt_prog_compiler_pic_CXX in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
+     esac
+else
+    lt_prog_compiler_pic_CXX=
+     lt_prog_compiler_can_build_shared_CXX=no
+fi
+
+fi
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works_CXX=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works_CXX=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works_CXX=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_static_works_CXX" >&6; }
+
+if test x"$lt_cv_prog_compiler_static_works_CXX" = xyes; then
+    :
+else
+    lt_prog_compiler_static_CXX=
+fi
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o_CXX" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test "$hard_links" = no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  exclude_expsyms_CXX='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  case $host_os in
+  aix[4-9]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to AIX nm, but means don't demangle with GNU nm
+    # Also, AIX nm treats weak defined symbols like other global defined
+    # symbols, whereas GNU nm marks them as "W".
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    else
+      export_symbols_cmds_CXX='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    export_symbols_cmds_CXX="$ltdll_cmds"
+    ;;
+  cygwin* | mingw* | cegcc*)
+    case $cc_basename in
+    cl*) ;;
+    *)
+      export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms_CXX='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+      ;;
+    esac
+    ;;
+  *)
+    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+    ;;
+  esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+test "$ld_shlibs_CXX" = no && can_build_shared=no
+
+with_gnu_ld_CXX=$with_gnu_ld
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_CXX" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc_CXX=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds_CXX in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl_CXX
+	  pic_flag=$lt_prog_compiler_pic_CXX
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag_CXX
+	  allow_undefined_flag_CXX=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc_CXX=no
+	  else
+	    lt_cv_archive_cmds_need_lc_CXX=yes
+	  fi
+	  allow_undefined_flag_CXX=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
+      archive_cmds_need_lc_CXX=$lt_cv_archive_cmds_need_lc_CXX
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+    library_names_spec='${libname}.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec="$LIB"
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[123]*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  # Handle Gentoo/FreeBSD as it was Linux
+  case $host_vendor in
+    gentoo)
+      version_type=linux ;;
+    *)
+      version_type=freebsd-$objformat ;;
+  esac
+
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+    linux)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+      soname_spec='${libname}${release}${shared_ext}$major'
+      need_lib_prefix=no
+      need_version=no
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
+haiku*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test "$lt_cv_prog_gnu_ld" = yes; then
+		version_type=linux
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be Linux ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Append ld.so.conf contents to the search path
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec="/usr/lib"
+  need_lib_prefix=no
+  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
+  case $host_os in
+    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
+    *)				need_version=no  ;;
+  esac
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+	shlibpath_overrides_runpath=no
+	;;
+      *)
+	shlibpath_overrides_runpath=yes
+	;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext_cmds=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test "$with_gnu_ld" = yes; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test "$dynamic_linker" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
+  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+fi
+if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
+  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action_CXX=
+if test -n "$hardcode_libdir_flag_spec_CXX" ||
+   test -n "$runpath_var_CXX" ||
+   test "X$hardcode_automatic_CXX" = "Xyes" ; then
+
+  # We can hardcode non-existent directories.
+  if test "$hardcode_direct_CXX" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" != no &&
+     test "$hardcode_minus_L_CXX" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action_CXX=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action_CXX=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action_CXX=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
+$as_echo "$hardcode_action_CXX" >&6; }
+
+if test "$hardcode_action_CXX" = relink ||
+   test "$inherit_rpath_CXX" = yes; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test "$_lt_caught_CXX_error" != yes
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+
+
+
+
+
+
+
+
+        ac_config_commands="$ac_config_commands libtool"
+
+
+
+
+# Only expand once:
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+$as_echo_n "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+$as_echo "no, using $LN_S" >&6; }
+fi
+
+
+PCRE_MAJOR="8"
+PCRE_MINOR="31"
+PCRE_PRERELEASE=""
+PCRE_DATE="2012-07-06"
+
+if test "$PCRE_MINOR" = "08" -o "$PCRE_MINOR" = "09"
+then
+  echo "***"
+  echo "*** Minor version number $PCRE_MINOR must not be used. ***"
+  echo "*** Use only 01 to 07 or 10 onwards, to avoid octal issues. ***"
+  echo "***"
+  exit 1
+fi
+
+
+
+
+
+
+# Set a more sensible default value for $(htmldir).
+if test "x$htmldir" = 'x${docdir}'
+then
+  htmldir='${docdir}/html'
+fi
+
+# Handle --disable-pcre8 (enabled by default)
+# Check whether --enable-pcre8 was given.
+if test "${enable_pcre8+set}" = set; then :
+  enableval=$enable_pcre8;
+else
+  enable_pcre8=unset
+fi
+
+
+
+# Handle --enable-pcre16 (disabled by default)
+# Check whether --enable-pcre16 was given.
+if test "${enable_pcre16+set}" = set; then :
+  enableval=$enable_pcre16;
+else
+  enable_pcre16=unset
+fi
+
+
+
+# Handle --disable-cpp. The substitution of enable_cpp is needed for use in
+# pcre-config.
+# Check whether --enable-cpp was given.
+if test "${enable_cpp+set}" = set; then :
+  enableval=$enable_cpp;
+else
+  enable_cpp=unset
+fi
+
+
+
+# Handle --enable-jit (disabled by default)
+# Check whether --enable-jit was given.
+if test "${enable_jit+set}" = set; then :
+  enableval=$enable_jit;
+else
+  enable_jit=no
+fi
+
+
+# Handle --disable-pcregrep-jit (enabled by default)
+# Check whether --enable-pcregrep-jit was given.
+if test "${enable_pcregrep_jit+set}" = set; then :
+  enableval=$enable_pcregrep_jit;
+else
+  enable_pcregrep_jit=yes
+fi
+
+
+# Handle --enable-rebuild-chartables
+# Check whether --enable-rebuild-chartables was given.
+if test "${enable_rebuild_chartables+set}" = set; then :
+  enableval=$enable_rebuild_chartables;
+else
+  enable_rebuild_chartables=no
+fi
+
+
+# Handle --enable-utf8 (disabled by default)
+# Check whether --enable-utf8 was given.
+if test "${enable_utf8+set}" = set; then :
+  enableval=$enable_utf8;
+else
+  enable_utf8=unset
+fi
+
+
+# Handle --enable-utf (disabled by default)
+# Check whether --enable-utf was given.
+if test "${enable_utf+set}" = set; then :
+  enableval=$enable_utf;
+else
+  enable_utf=unset
+fi
+
+
+# Handle --enable-unicode-properties
+# Check whether --enable-unicode-properties was given.
+if test "${enable_unicode_properties+set}" = set; then :
+  enableval=$enable_unicode_properties;
+else
+  enable_unicode_properties=no
+fi
+
+
+# Handle --enable-newline=NL
+
+# Separate newline options
+ac_pcre_newline=lf
+# Check whether --enable-newline-is-cr was given.
+if test "${enable_newline_is_cr+set}" = set; then :
+  enableval=$enable_newline_is_cr; ac_pcre_newline=cr
+fi
+
+# Check whether --enable-newline-is-lf was given.
+if test "${enable_newline_is_lf+set}" = set; then :
+  enableval=$enable_newline_is_lf; ac_pcre_newline=lf
+fi
+
+# Check whether --enable-newline-is-crlf was given.
+if test "${enable_newline_is_crlf+set}" = set; then :
+  enableval=$enable_newline_is_crlf; ac_pcre_newline=crlf
+fi
+
+# Check whether --enable-newline-is-anycrlf was given.
+if test "${enable_newline_is_anycrlf+set}" = set; then :
+  enableval=$enable_newline_is_anycrlf; ac_pcre_newline=anycrlf
+fi
+
+# Check whether --enable-newline-is-any was given.
+if test "${enable_newline_is_any+set}" = set; then :
+  enableval=$enable_newline_is_any; ac_pcre_newline=any
+fi
+
+enable_newline="$ac_pcre_newline"
+
+# Handle --enable-bsr-anycrlf
+# Check whether --enable-bsr-anycrlf was given.
+if test "${enable_bsr_anycrlf+set}" = set; then :
+  enableval=$enable_bsr_anycrlf;
+else
+  enable_bsr_anycrlf=no
+fi
+
+
+# Handle --enable-ebcdic
+# Check whether --enable-ebcdic was given.
+if test "${enable_ebcdic+set}" = set; then :
+  enableval=$enable_ebcdic;
+else
+  enable_ebcdic=no
+fi
+
+
+# Handle --disable-stack-for-recursion
+# Check whether --enable-stack-for-recursion was given.
+if test "${enable_stack_for_recursion+set}" = set; then :
+  enableval=$enable_stack_for_recursion;
+else
+  enable_stack_for_recursion=yes
+fi
+
+
+# Handle --enable-pcregrep-libz
+# Check whether --enable-pcregrep-libz was given.
+if test "${enable_pcregrep_libz+set}" = set; then :
+  enableval=$enable_pcregrep_libz;
+else
+  enable_pcregrep_libz=no
+fi
+
+
+# Handle --enable-pcregrep-libbz2
+# Check whether --enable-pcregrep-libbz2 was given.
+if test "${enable_pcregrep_libbz2+set}" = set; then :
+  enableval=$enable_pcregrep_libbz2;
+else
+  enable_pcregrep_libbz2=no
+fi
+
+
+# Handle --with-pcregrep-bufsize=N
+
+# Check whether --with-pcregrep-bufsize was given.
+if test "${with_pcregrep_bufsize+set}" = set; then :
+  withval=$with_pcregrep_bufsize;
+else
+  with_pcregrep_bufsize=20480
+fi
+
+
+# Handle --enable-pcretest-libedit
+# Check whether --enable-pcretest-libedit was given.
+if test "${enable_pcretest_libedit+set}" = set; then :
+  enableval=$enable_pcretest_libedit;
+else
+  enable_pcretest_libedit=no
+fi
+
+
+# Handle --enable-pcretest-libreadline
+# Check whether --enable-pcretest-libreadline was given.
+if test "${enable_pcretest_libreadline+set}" = set; then :
+  enableval=$enable_pcretest_libreadline;
+else
+  enable_pcretest_libreadline=no
+fi
+
+
+# Handle --with-posix-malloc-threshold=NBYTES
+
+# Check whether --with-posix-malloc-threshold was given.
+if test "${with_posix_malloc_threshold+set}" = set; then :
+  withval=$with_posix_malloc_threshold;
+else
+  with_posix_malloc_threshold=10
+fi
+
+
+# Handle --with-link-size=N
+
+# Check whether --with-link-size was given.
+if test "${with_link_size+set}" = set; then :
+  withval=$with_link_size;
+else
+  with_link_size=2
+fi
+
+
+# Handle --with-match-limit=N
+
+# Check whether --with-match-limit was given.
+if test "${with_match_limit+set}" = set; then :
+  withval=$with_match_limit;
+else
+  with_match_limit=10000000
+fi
+
+
+# Handle --with-match-limit_recursion=N
+#
+# Note: In config.h, the default is to define MATCH_LIMIT_RECURSION
+# symbolically as MATCH_LIMIT, which in turn is defined to be some numeric
+# value (e.g. 10000000). MATCH_LIMIT_RECURSION can otherwise be set to some
+# different numeric value (or even the same numeric value as MATCH_LIMIT,
+# though no longer defined in terms of the latter).
+#
+
+# Check whether --with-match-limit-recursion was given.
+if test "${with_match_limit_recursion+set}" = set; then :
+  withval=$with_match_limit_recursion;
+else
+  with_match_limit_recursion=MATCH_LIMIT
+fi
+
+
+# Copy enable_utf8 value to enable_utf for compatibility reasons
+if test "x$enable_utf8" != "xunset"
+then
+  if test "x$enable_utf" != "xunset"
+  then
+    as_fn_error $? "--enable/disable-utf8 is kept only for compatibility reasons and its value is copied to --enable/disable-utf. Newer code must use --enable/disable-utf alone." "$LINENO" 5
+  fi
+  enable_utf=$enable_utf8
+fi
+
+# Set the default value for pcre8
+if test "x$enable_pcre8" = "xunset"
+then
+  enable_pcre8=yes
+fi
+
+# Set the default value for pcre16
+if test "x$enable_pcre16" = "xunset"
+then
+  enable_pcre16=no
+fi
+
+# Make sure enable_pcre8 or enable_pcre16 was set
+if test "x$enable_pcre8$enable_pcre16" = "xnono"
+then
+  as_fn_error $? "Either 8 or 16 bit (or both) pcre library must be enabled" "$LINENO" 5
+fi
+
+# Make sure that if enable_unicode_properties was set, that UTF support is enabled.
+if test "x$enable_unicode_properties" = "xyes"
+then
+  if test "x$enable_utf" = "xno"
+  then
+    as_fn_error $? "support for Unicode properties requires UTF-8/16 support" "$LINENO" 5
+  fi
+  enable_utf=yes
+fi
+
+# enable_utf is disabled by default.
+if test "x$enable_utf" = "xunset"
+then
+  enable_utf=no
+fi
+
+# enable_cpp copies the value of enable_pcre8 by default
+if test "x$enable_cpp" = "xunset"
+then
+  enable_cpp=$enable_pcre8
+fi
+
+# Make sure that if enable_cpp was set, that enable_pcre8 support is enabled
+if test "x$enable_cpp" = "xyes"
+then
+  if test "x$enable_pcre8" = "xno"
+  then
+    as_fn_error $? "C++ library requires pcre library with 8 bit characters" "$LINENO" 5
+  fi
+fi
+
+# Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
+# Also check that UTF support is not requested, because PCRE cannot handle
+# EBCDIC and UTF in the same build. To do so it would need to use different
+# character constants depending on the mode.
+#
+if test "x$enable_ebcdic" = "xyes"
+then
+  enable_rebuild_chartables=yes
+  if test "x$enable_utf" = "xyes"
+  then
+    as_fn_error $? "support for EBCDIC and UTF-8/16 cannot be enabled at the same time" "$LINENO" 5
+  fi
+fi
+
+# Convert the newline identifier into the appropriate integer value.
+case "$enable_newline" in
+  lf)      ac_pcre_newline_value=10   ;;
+  cr)      ac_pcre_newline_value=13   ;;
+  crlf)    ac_pcre_newline_value=3338 ;;
+  anycrlf) ac_pcre_newline_value=-2   ;;
+  any)     ac_pcre_newline_value=-1   ;;
+  *)
+  as_fn_error $? "invalid argument \"$enable_newline\" to --enable-newline option" "$LINENO" 5
+  ;;
+esac
+
+# Check argument to --with-link-size
+case "$with_link_size" in
+  2|3|4) ;;
+  *)
+  as_fn_error $? "invalid argument \"$with_link_size\" to --with-link-size option" "$LINENO" 5
+  ;;
+esac
+
+
+
+# Checks for header files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+for ac_header in limits.h sys/types.h sys/stat.h dirent.h windows.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+# The files below are C++ header files.
+pcre_have_type_traits="0"
+pcre_have_bits_type_traits="0"
+if test "x$enable_cpp" = "xyes" -a -n "$CXX"
+then
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+# Older versions of pcre defined pcrecpp::no_arg, but in new versions
+# it's called pcrecpp::RE::no_arg.  For backwards ABI compatibility,
+# we want to make one an alias for the other.  Different systems do
+# this in different ways.  Some systems, for instance, can do it via
+# a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4).
+OLD_LDFLAGS="$LDFLAGS"
+for flag in "-alias,__ZN7pcrecpp2RE6no_argE,__ZN7pcrecpp6no_argE" \
+            "-i__ZN7pcrecpp6no_argE:__ZN7pcrecpp2RE6no_argE"; do
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for alias support in the linker" >&5
+$as_echo_n "checking for alias support in the linker... " >&6; }
+  LDFLAGS="$OLD_LDFLAGS -Wl,$flag"
+  # We try to run the linker with this new ld flag.  If the link fails,
+  # we give up and remove the new flag from LDFLAGS.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+namespace pcrecpp {
+                                    class RE { static int no_arg; };
+                                    int RE::no_arg;
+                                  }
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; };
+                  EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";
+                  break;
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+done
+LDFLAGS="$OLD_LDFLAGS"
+
+# We could be more clever here, given we're doing AC_SUBST with this
+# (eg set a var to be the name of the include file we want). But we're not
+# so it's easy to change back to 'regular' autoconf vars if we needed to.
+
+for ac_header in string
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "string" "ac_cv_header_string" "$ac_includes_default"
+if test "x$ac_cv_header_string" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_STRING 1
+_ACEOF
+ pcre_have_cpp_headers="1"
+else
+  pcre_have_cpp_headers="0"
+fi
+
+done
+
+for ac_header in bits/type_traits.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "bits/type_traits.h" "ac_cv_header_bits_type_traits_h" "$ac_includes_default"
+if test "x$ac_cv_header_bits_type_traits_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_BITS_TYPE_TRAITS_H 1
+_ACEOF
+ pcre_have_bits_type_traits="1"
+else
+  pcre_have_bits_type_traits="0"
+fi
+
+done
+
+for ac_header in type_traits.h
+do :
+  ac_fn_cxx_check_header_mongrel "$LINENO" "type_traits.h" "ac_cv_header_type_traits_h" "$ac_includes_default"
+if test "x$ac_cv_header_type_traits_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_TYPE_TRAITS_H 1
+_ACEOF
+ pcre_have_type_traits="1"
+else
+  pcre_have_type_traits="0"
+fi
+
+done
+
+
+# (This isn't c++-specific, but is only used in pcrecpp.cc, so try this
+# in a c++ context.  This matters becuase strtoimax is C99 and may not
+# be supported by the C++ compiler.)
+# Figure out how to create a longlong from a string: strtoll and
+# equiv.  It's not enough to call AC_CHECK_FUNCS: hpux has a
+# strtoll, for instance, but it only takes 2 args instead of 3!
+# We have to call AH_TEMPLATE since AC_DEFINE_UNQUOTED below is complex.
+
+
+
+
+have_strto_fn=0
+for fn in strtoq strtoll _strtoi64 strtoimax; do
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $fn" >&5
+$as_echo_n "checking for $fn... " >&6; }
+  if test "$fn" = strtoimax; then
+    include=stdint.h
+  else
+    include=stdlib.h
+  fi
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$include>
+int
+main ()
+{
+char* e; return $fn("100", &e, 10)
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_`echo $fn | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ` 1
+_ACEOF
+
+                     have_strto_fn=1
+                     break
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+
+if test "$have_strto_fn" = 1; then
+  ac_fn_cxx_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
+if test "x$ac_cv_type_long_long" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_LONG_LONG 1
+_ACEOF
+
+pcre_have_long_long="1"
+else
+  pcre_have_long_long="0"
+fi
+
+  ac_fn_cxx_check_type "$LINENO" "unsigned long long" "ac_cv_type_unsigned_long_long" "$ac_includes_default"
+if test "x$ac_cv_type_unsigned_long_long" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_UNSIGNED_LONG_LONG 1
+_ACEOF
+
+pcre_have_ulong_long="1"
+else
+  pcre_have_ulong_long="0"
+fi
+
+else
+  pcre_have_long_long="0"
+  pcre_have_ulong_long="0"
+fi
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+# Using AC_SUBST eliminates the need to include config.h in a public .h file
+
+
+
+# Conditional compilation
+ if test "x$enable_pcre8" = "xyes"; then
+  WITH_PCRE8_TRUE=
+  WITH_PCRE8_FALSE='#'
+else
+  WITH_PCRE8_TRUE='#'
+  WITH_PCRE8_FALSE=
+fi
+
+ if test "x$enable_pcre16" = "xyes"; then
+  WITH_PCRE16_TRUE=
+  WITH_PCRE16_FALSE='#'
+else
+  WITH_PCRE16_TRUE='#'
+  WITH_PCRE16_FALSE=
+fi
+
+ if test "x$enable_cpp" = "xyes"; then
+  WITH_PCRE_CPP_TRUE=
+  WITH_PCRE_CPP_FALSE='#'
+else
+  WITH_PCRE_CPP_TRUE='#'
+  WITH_PCRE_CPP_FALSE=
+fi
+
+ if test "x$enable_rebuild_chartables" = "xyes"; then
+  WITH_REBUILD_CHARTABLES_TRUE=
+  WITH_REBUILD_CHARTABLES_FALSE='#'
+else
+  WITH_REBUILD_CHARTABLES_TRUE='#'
+  WITH_REBUILD_CHARTABLES_FALSE=
+fi
+
+ if test "x$enable_jit" = "xyes"; then
+  WITH_JIT_TRUE=
+  WITH_JIT_FALSE='#'
+else
+  WITH_JIT_TRUE='#'
+  WITH_JIT_FALSE=
+fi
+
+ if test "x$enable_utf" = "xyes"; then
+  WITH_UTF_TRUE=
+  WITH_UTF_FALSE='#'
+else
+  WITH_UTF_TRUE='#'
+  WITH_UTF_FALSE=
+fi
+
+
+# Checks for typedefs, structures, and compiler characteristics.
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
+$as_echo_n "checking for an ANSI C-conforming const... " >&6; }
+if ${ac_cv_c_const+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+/* FIXME: Include the comments suggested by Paul. */
+#ifndef __cplusplus
+  /* Ultrix mips cc rejects this.  */
+  typedef int charset[2];
+  const charset cs;
+  /* SunOS 4.1.1 cc rejects this.  */
+  char const *const *pcpcc;
+  char **ppc;
+  /* NEC SVR4.0.2 mips cc rejects this.  */
+  struct point {int x, y;};
+  static struct point const zero = {0,0};
+  /* AIX XL C 1.02.0.0 rejects this.
+     It does not let you subtract one const X* pointer from another in
+     an arm of an if-expression whose if-part is not a constant
+     expression */
+  const char *g = "string";
+  pcpcc = &g + (g ? g-g : 0);
+  /* HPUX 7.0 cc rejects these. */
+  ++pcpcc;
+  ppc = (char**) pcpcc;
+  pcpcc = (char const *const *) ppc;
+  { /* SCO 3.2v4 cc rejects this.  */
+    char *t;
+    char const *s = 0 ? (char *) 0 : (char const *) 0;
+
+    *t++ = 0;
+    if (s) return 0;
+  }
+  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
+    int x[] = {25, 17};
+    const int *foo = &x[0];
+    ++foo;
+  }
+  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
+    typedef const int *iptr;
+    iptr p = 0;
+    ++p;
+  }
+  { /* AIX XL C 1.02.0.0 rejects this saying
+       "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
+    struct s { int j; const int *ap[3]; };
+    struct s *b; b->j = 5;
+  }
+  { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
+    const int foo = 10;
+    if (!foo) return 0;
+  }
+  return !cs[0] && !zero.x;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_c_const=yes
+else
+  ac_cv_c_const=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
+$as_echo "$ac_cv_c_const" >&6; }
+if test $ac_cv_c_const = no; then
+
+$as_echo "#define const /**/" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default"
+if test "x$ac_cv_type_size_t" = xyes; then :
+
+else
+
+cat >>confdefs.h <<_ACEOF
+#define size_t unsigned int
+_ACEOF
+
+fi
+
+
+# Checks for library functions.
+
+for ac_func in bcopy memmove strerror
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+# Check for the availability of libz (aka zlib)
+
+for ac_header in zlib.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zlib.h" "ac_cv_header_zlib_h" "$ac_includes_default"
+if test "x$ac_cv_header_zlib_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZLIB_H 1
+_ACEOF
+ HAVE_ZLIB_H=1
+fi
+
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gzopen in -lz" >&5
+$as_echo_n "checking for gzopen in -lz... " >&6; }
+if ${ac_cv_lib_z_gzopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lz  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char gzopen ();
+int
+main ()
+{
+return gzopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_z_gzopen=yes
+else
+  ac_cv_lib_z_gzopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_gzopen" >&5
+$as_echo "$ac_cv_lib_z_gzopen" >&6; }
+if test "x$ac_cv_lib_z_gzopen" = xyes; then :
+  HAVE_LIBZ=1
+fi
+
+
+# Check for the availability of libbz2. Originally we just used AC_CHECK_LIB,
+# as for libz. However, this had the following problem, diagnosed and fixed by
+# a user:
+#
+#   - libbz2 uses the Pascal calling convention (WINAPI) for the functions
+#     under Win32.
+#   - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h",
+#     therefore missing the function definition.
+#   - The compiler thus generates a "C" signature for the test function.
+#   - The linker fails to find the "C" function.
+#   - PCRE fails to configure if asked to do so against libbz2.
+#
+# Solution:
+#
+#   - Replace the AC_CHECK_LIB test with a custom test.
+
+for ac_header in bzlib.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "bzlib.h" "ac_cv_header_bzlib_h" "$ac_includes_default"
+if test "x$ac_cv_header_bzlib_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_BZLIB_H 1
+_ACEOF
+ HAVE_BZLIB_H=1
+fi
+
+done
+
+# Original test
+# AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
+#
+# Custom test follows
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libbz2" >&5
+$as_echo_n "checking for libbz2... " >&6; }
+OLD_LIBS="$LIBS"
+LIBS="$LIBS -lbz2"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef HAVE_BZLIB_H
+#include <bzlib.h>
+#endif
+int
+main ()
+{
+return (int)BZ2_bzopen("conftest", "rb");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; };HAVE_LIBBZ2=1; break;
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS="$OLD_LIBS"
+
+# Check for the availabiity of libreadline
+
+if test "$enable_pcretest_libreadline" = "yes"; then
+ for ac_header in readline/readline.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "readline/readline.h" "ac_cv_header_readline_readline_h" "$ac_includes_default"
+if test "x$ac_cv_header_readline_readline_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_READLINE_READLINE_H 1
+_ACEOF
+ HAVE_READLINE_H=1
+fi
+
+done
+
+ for ac_header in readline/history.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "readline/history.h" "ac_cv_header_readline_history_h" "$ac_includes_default"
+if test "x$ac_cv_header_readline_history_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_READLINE_HISTORY_H 1
+_ACEOF
+ HAVE_HISTORY_H=1
+fi
+
+done
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for readline in -lreadline" >&5
+$as_echo_n "checking for readline in -lreadline... " >&6; }
+if ${ac_cv_lib_readline_readline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lreadline  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline ();
+int
+main ()
+{
+return readline ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_readline_readline=yes
+else
+  ac_cv_lib_readline_readline=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_readline" >&5
+$as_echo "$ac_cv_lib_readline_readline" >&6; }
+if test "x$ac_cv_lib_readline_readline" = xyes; then :
+  LIBREADLINE="-lreadline"
+else
+  unset ac_cv_lib_readline_readline;
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for readline in -lreadline" >&5
+$as_echo_n "checking for readline in -lreadline... " >&6; }
+if ${ac_cv_lib_readline_readline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lreadline -ltinfo $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline ();
+int
+main ()
+{
+return readline ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_readline_readline=yes
+else
+  ac_cv_lib_readline_readline=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_readline" >&5
+$as_echo "$ac_cv_lib_readline_readline" >&6; }
+if test "x$ac_cv_lib_readline_readline" = xyes; then :
+  LIBREADLINE="-ltinfo"
+else
+  unset ac_cv_lib_readline_readline;
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for readline in -lreadline" >&5
+$as_echo_n "checking for readline in -lreadline... " >&6; }
+if ${ac_cv_lib_readline_readline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lreadline -lcurses $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline ();
+int
+main ()
+{
+return readline ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_readline_readline=yes
+else
+  ac_cv_lib_readline_readline=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_readline" >&5
+$as_echo "$ac_cv_lib_readline_readline" >&6; }
+if test "x$ac_cv_lib_readline_readline" = xyes; then :
+  LIBREADLINE="-lcurses"
+else
+  unset ac_cv_lib_readline_readline;
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for readline in -lreadline" >&5
+$as_echo_n "checking for readline in -lreadline... " >&6; }
+if ${ac_cv_lib_readline_readline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lreadline -lncurses $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline ();
+int
+main ()
+{
+return readline ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_readline_readline=yes
+else
+  ac_cv_lib_readline_readline=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_readline" >&5
+$as_echo "$ac_cv_lib_readline_readline" >&6; }
+if test "x$ac_cv_lib_readline_readline" = xyes; then :
+  LIBREADLINE="-lncurses"
+else
+  unset ac_cv_lib_readline_readline;
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for readline in -lreadline" >&5
+$as_echo_n "checking for readline in -lreadline... " >&6; }
+if ${ac_cv_lib_readline_readline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lreadline -lncursesw $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline ();
+int
+main ()
+{
+return readline ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_readline_readline=yes
+else
+  ac_cv_lib_readline_readline=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_readline" >&5
+$as_echo "$ac_cv_lib_readline_readline" >&6; }
+if test "x$ac_cv_lib_readline_readline" = xyes; then :
+  LIBREADLINE="-lncursesw"
+else
+  unset ac_cv_lib_readline_readline;
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for readline in -lreadline" >&5
+$as_echo_n "checking for readline in -lreadline... " >&6; }
+if ${ac_cv_lib_readline_readline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lreadline -ltermcap $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline ();
+int
+main ()
+{
+return readline ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_readline_readline=yes
+else
+  ac_cv_lib_readline_readline=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_readline" >&5
+$as_echo "$ac_cv_lib_readline_readline" >&6; }
+if test "x$ac_cv_lib_readline_readline" = xyes; then :
+  LIBREADLINE="-ltermcap"
+else
+  LIBREADLINE=""
+fi
+
+fi
+
+fi
+
+fi
+
+fi
+
+fi
+
+
+ if test -n "$LIBREADLINE"; then
+   if test "$LIBREADLINE" != "-lreadline"; then
+     echo "-lreadline needs $LIBREADLINE"
+     LIBREADLINE="-lreadline $LIBREADLINE"
+   fi
+ fi
+fi
+
+
+# Check for the availability of libedit. Different distributions put its
+# headers in different places. Try to cover the most common ones.
+
+if test "$enable_pcretest_libedit" = "yes"; then
+  for ac_header in editline/readline.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "editline/readline.h" "ac_cv_header_editline_readline_h" "$ac_includes_default"
+if test "x$ac_cv_header_editline_readline_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EDITLINE_READLINE_H 1
+_ACEOF
+ HAVE_EDITLINE_READLINE_H=1
+else
+  for ac_header in edit/readline/readline.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "edit/readline/readline.h" "ac_cv_header_edit_readline_readline_h" "$ac_includes_default"
+if test "x$ac_cv_header_edit_readline_readline_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EDIT_READLINE_READLINE_H 1
+_ACEOF
+ HAVE_READLINE_READLINE_H=1
+else
+  for ac_header in readline/readline.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "readline/readline.h" "ac_cv_header_readline_readline_h" "$ac_includes_default"
+if test "x$ac_cv_header_readline_readline_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_READLINE_READLINE_H 1
+_ACEOF
+ HAVE_READLINE_READLINE_H=1
+fi
+
+done
+
+fi
+
+done
+
+fi
+
+done
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for readline in -ledit" >&5
+$as_echo_n "checking for readline in -ledit... " >&6; }
+if ${ac_cv_lib_edit_readline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ledit  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline ();
+int
+main ()
+{
+return readline ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_edit_readline=yes
+else
+  ac_cv_lib_edit_readline=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_edit_readline" >&5
+$as_echo "$ac_cv_lib_edit_readline" >&6; }
+if test "x$ac_cv_lib_edit_readline" = xyes; then :
+  LIBEDIT="-ledit"
+fi
+
+fi
+
+# This facilitates -ansi builds under Linux
+
+PCRE_STATIC_CFLAG=""
+if test "x$enable_shared" = "xno" ; then
+
+$as_echo "#define PCRE_STATIC 1" >>confdefs.h
+
+  PCRE_STATIC_CFLAG="-DPCRE_STATIC"
+fi
+
+
+# Here is where pcre specific defines are handled
+
+if test "$enable_pcre8" = "yes"; then
+
+$as_echo "#define SUPPORT_PCRE8 /**/" >>confdefs.h
+
+fi
+
+if test "$enable_pcre16" = "yes"; then
+
+$as_echo "#define SUPPORT_PCRE16 /**/" >>confdefs.h
+
+fi
+
+if test "$enable_jit" = "yes"; then
+
+$as_echo "#define SUPPORT_JIT /**/" >>confdefs.h
+
+else
+  enable_pcregrep_jit="no"
+fi
+
+if test "$enable_pcregrep_jit" = "yes"; then
+
+$as_echo "#define SUPPORT_PCREGREP_JIT /**/" >>confdefs.h
+
+fi
+
+if test "$enable_utf" = "yes"; then
+
+$as_echo "#define SUPPORT_UTF /**/" >>confdefs.h
+
+fi
+
+if test "$enable_unicode_properties" = "yes"; then
+
+$as_echo "#define SUPPORT_UCP /**/" >>confdefs.h
+
+fi
+
+if test "$enable_stack_for_recursion" = "no"; then
+
+$as_echo "#define NO_RECURSE /**/" >>confdefs.h
+
+fi
+
+if test "$enable_pcregrep_libz" = "yes"; then
+
+$as_echo "#define SUPPORT_LIBZ /**/" >>confdefs.h
+
+fi
+
+if test "$enable_pcregrep_libbz2" = "yes"; then
+
+$as_echo "#define SUPPORT_LIBBZ2 /**/" >>confdefs.h
+
+fi
+
+if test $with_pcregrep_bufsize -lt 8192 ; then
+  with_pcregrep_bufsize="8192"
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define PCREGREP_BUFSIZE $with_pcregrep_bufsize
+_ACEOF
+
+
+if test "$enable_pcretest_libedit" = "yes"; then
+
+$as_echo "#define SUPPORT_LIBEDIT /**/" >>confdefs.h
+
+  LIBREADLINE="$LIBEDIT"
+elif test "$enable_pcretest_libreadline" = "yes"; then
+
+$as_echo "#define SUPPORT_LIBREADLINE /**/" >>confdefs.h
+
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define NEWLINE $ac_pcre_newline_value
+_ACEOF
+
+
+if test "$enable_bsr_anycrlf" = "yes"; then
+
+$as_echo "#define BSR_ANYCRLF /**/" >>confdefs.h
+
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define LINK_SIZE $with_link_size
+_ACEOF
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define POSIX_MALLOC_THRESHOLD $with_posix_malloc_threshold
+_ACEOF
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define MATCH_LIMIT $with_match_limit
+_ACEOF
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define MATCH_LIMIT_RECURSION $with_match_limit_recursion
+_ACEOF
+
+
+
+$as_echo "#define MAX_NAME_SIZE 32" >>confdefs.h
+
+
+
+$as_echo "#define MAX_NAME_COUNT 10000" >>confdefs.h
+
+
+
+
+if test "$enable_ebcdic" = "yes"; then
+
+cat >>confdefs.h <<_ACEOF
+#define EBCDIC /**/
+_ACEOF
+
+fi
+
+# Platform specific issues
+NO_UNDEFINED=
+EXPORT_ALL_SYMBOLS=
+case $host_os in
+  cygwin* | mingw* )
+    if test X"$enable_shared" = Xyes; then
+      NO_UNDEFINED="-no-undefined"
+      EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols"
+    fi
+    ;;
+esac
+
+# The extra LDFLAGS for each particular library
+# (Note: The libpcre*_version bits are m4 variables, assigned above)
+
+EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \
+                       $NO_UNDEFINED -version-info 1:1:0"
+
+EXTRA_LIBPCRE16_LDFLAGS="$EXTRA_LIBPCRE16_LDFLAGS \
+                       $NO_UNDEFINED -version-info 0:1:0"
+
+EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \
+                            $NO_UNDEFINED -version-info 0:1:0"
+
+EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \
+                          $NO_UNDEFINED -version-info 0:0:0 \
+                          $EXPORT_ALL_SYMBOLS"
+
+
+
+
+
+
+# When we run 'make distcheck', use these arguments. Turning off compiler
+# optimization makes it run faster.
+DISTCHECK_CONFIGURE_FLAGS="CFLAGS='' CXXFLAGS='' --enable-pcre16 --enable-jit --enable-cpp --enable-unicode-properties"
+
+
+# Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is
+# specified, the relevant library is available.
+
+if test "$enable_pcregrep_libz" = "yes"; then
+  if test "$HAVE_ZLIB_H" != "1"; then
+    echo "** Cannot --enable-pcregrep-libz because zlib.h was not found"
+    exit 1
+  fi
+  if test "$HAVE_LIBZ" != "1"; then
+    echo "** Cannot --enable-pcregrep-libz because libz was not found"
+    exit 1
+  fi
+  LIBZ="-lz"
+fi
+
+
+if test "$enable_pcregrep_libbz2" = "yes"; then
+  if test "$HAVE_BZLIB_H" != "1"; then
+    echo "** Cannot --enable-pcregrep-libbz2 because bzlib.h was not found"
+    exit 1
+  fi
+  if test "$HAVE_LIBBZ2" != "1"; then
+    echo "** Cannot --enable-pcregrep-libbz2 because libbz2 was not found"
+    exit 1
+  fi
+  LIBBZ2="-lbz2"
+fi
+
+
+# Similarly for --enable-pcretest-readline
+
+if test "$enable_pcretest_libedit" = "yes"; then
+  if test "$enable_pcretest_libreadline" = "yes"; then
+    echo "** Cannot use both --enable-pcretest-libedit and --enable-pcretest-readline"
+    exit 1
+  fi
+  if test "$HAVE_EDITLINE_READLINE_H" != "1" -a \
+          "$HAVE_READLINE_READLINE_H" != "1"; then
+    echo "** Cannot --enable-pcretest-libedit because neither editline/readline.h"
+    echo "** nor readline/readline.h was found."
+    exit 1
+  fi
+  if test -z "$LIBEDIT"; then
+    echo "** Cannot --enable-pcretest-libedit because libedit library was not found."
+    exit 1
+  fi
+fi
+
+if test "$enable_pcretest_libreadline" = "yes"; then
+  if test "$HAVE_READLINE_H" != "1"; then
+    echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."
+    exit 1
+  fi
+  if test "$HAVE_HISTORY_H" != "1"; then
+    echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."
+    exit 1
+  fi
+  if test -z "$LIBREADLINE"; then
+    echo "** Cannot --enable-pcretest-readline because readline library was not found."
+    exit 1
+  fi
+fi
+
+# Produce these files, in addition to config.h.
+ac_config_files="$ac_config_files Makefile libpcre.pc libpcre16.pc libpcreposix.pc libpcrecpp.pc pcre-config pcre.h pcre_stringpiece.h pcrecpparg.h"
+
+
+# Make the generated script files executable.
+ac_config_commands="$ac_config_commands script-chmod"
+
+
+# Make sure that pcre_chartables.c is removed in case the method for
+# creating it was changed by reconfiguration.
+ac_config_commands="$ac_config_commands delete-old-chartables"
+
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+ if test -n "$EXEEXT"; then
+  am__EXEEXT_TRUE=
+  am__EXEEXT_FALSE='#'
+else
+  am__EXEEXT_TRUE='#'
+  am__EXEEXT_FALSE=
+fi
+
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_PCRE8_TRUE}" && test -z "${WITH_PCRE8_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_PCRE8\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_PCRE16_TRUE}" && test -z "${WITH_PCRE16_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_PCRE16\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_PCRE_CPP_TRUE}" && test -z "${WITH_PCRE_CPP_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_PCRE_CPP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_REBUILD_CHARTABLES_TRUE}" && test -z "${WITH_REBUILD_CHARTABLES_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_REBUILD_CHARTABLES\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_JIT_TRUE}" && test -z "${WITH_JIT_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_JIT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WITH_UTF_TRUE}" && test -z "${WITH_UTF_FALSE}"; then
+  as_fn_error $? "conditional \"WITH_UTF\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -p'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -p'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -p'
+  fi
+else
+  as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+if test -x / >/dev/null 2>&1; then
+  as_test_x='test -x'
+else
+  if ls -dL / >/dev/null 2>&1; then
+    as_ls_L_option=L
+  else
+    as_ls_L_option=
+  fi
+  as_test_x='
+    eval sh -c '\''
+      if test -d "$1"; then
+	test -d "$1/.";
+      else
+	case $1 in #(
+	-*)set "./$1";;
+	esac;
+	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+	???[sx]*):;;*)false;;esac;fi
+    '\'' sh
+  '
+fi
+as_executable_p=$as_test_x
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by PCRE $as_me 8.31, which was
+generated by GNU Autoconf 2.68.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+      --header=FILE[:TEMPLATE]
+                   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to the package provider."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+PCRE config.status 8.31
+configured by $0, generated by GNU Autoconf 2.68,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2010 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+AWK='$AWK'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h)
+    # Conflict between --help and --header
+    as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
+  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+#
+# INIT-COMMANDS
+#
+AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+AS='`$ECHO "$AS" | $SED "$delay_single_quote_subst"`'
+DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`'
+OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
+macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
+macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
+enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`'
+enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
+pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
+enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
+SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
+ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
+host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
+host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
+host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
+build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
+build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`'
+build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
+SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`'
+Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
+GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
+EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
+FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
+LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
+NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
+LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
+max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
+ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
+exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
+lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
+lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
+lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`'
+reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
+reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
+deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
+file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
+file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`'
+want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`'
+sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`'
+AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
+AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
+archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`'
+STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
+RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
+old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
+lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
+CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
+CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
+compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
+GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
+nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
+lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
+objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
+MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
+need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
+MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`'
+DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
+NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
+LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
+OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
+OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
+libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
+shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
+extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_ld='`$ECHO "$hardcode_libdir_flag_spec_ld" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
+hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
+inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
+always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
+include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
+prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
+postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`'
+file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
+variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
+need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
+need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
+version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
+runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
+libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
+library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
+soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
+install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
+postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
+finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
+hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
+sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
+sys_lib_dlsearch_path_spec='`$ECHO "$sys_lib_dlsearch_path_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
+enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
+old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
+striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`'
+predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`'
+postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`'
+predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`'
+postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`'
+LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`'
+reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`'
+reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`'
+GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_ld_CXX='`$ECHO "$hardcode_libdir_flag_spec_ld_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`'
+inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`'
+always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+postlink_cmds_CXX='`$ECHO "$postlink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`'
+predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`'
+postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`'
+
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in AS \
+DLLTOOL \
+OBJDUMP \
+SHELL \
+ECHO \
+SED \
+GREP \
+EGREP \
+FGREP \
+LD \
+NM \
+LN_S \
+lt_SP2NL \
+lt_NL2SP \
+reload_flag \
+deplibs_check_method \
+file_magic_cmd \
+file_magic_glob \
+want_nocaseglob \
+sharedlib_from_linklib_cmd \
+AR \
+AR_FLAGS \
+archiver_list_spec \
+STRIP \
+RANLIB \
+CC \
+CFLAGS \
+compiler \
+lt_cv_sys_global_symbol_pipe \
+lt_cv_sys_global_symbol_to_cdecl \
+lt_cv_sys_global_symbol_to_c_name_address \
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
+nm_file_list_spec \
+lt_prog_compiler_no_builtin_flag \
+lt_prog_compiler_pic \
+lt_prog_compiler_wl \
+lt_prog_compiler_static \
+lt_cv_prog_compiler_c_o \
+need_locks \
+MANIFEST_TOOL \
+DSYMUTIL \
+NMEDIT \
+LIPO \
+OTOOL \
+OTOOL64 \
+shrext_cmds \
+export_dynamic_flag_spec \
+whole_archive_flag_spec \
+compiler_needs_object \
+with_gnu_ld \
+allow_undefined_flag \
+no_undefined_flag \
+hardcode_libdir_flag_spec \
+hardcode_libdir_flag_spec_ld \
+hardcode_libdir_separator \
+exclude_expsyms \
+include_expsyms \
+file_list_spec \
+variables_saved_for_relink \
+libname_spec \
+library_names_spec \
+soname_spec \
+install_override_mode \
+finish_eval \
+old_striplib \
+striplib \
+compiler_lib_search_dirs \
+predep_objects \
+postdep_objects \
+predeps \
+postdeps \
+compiler_lib_search_path \
+LD_CXX \
+reload_flag_CXX \
+compiler_CXX \
+lt_prog_compiler_no_builtin_flag_CXX \
+lt_prog_compiler_pic_CXX \
+lt_prog_compiler_wl_CXX \
+lt_prog_compiler_static_CXX \
+lt_cv_prog_compiler_c_o_CXX \
+export_dynamic_flag_spec_CXX \
+whole_archive_flag_spec_CXX \
+compiler_needs_object_CXX \
+with_gnu_ld_CXX \
+allow_undefined_flag_CXX \
+no_undefined_flag_CXX \
+hardcode_libdir_flag_spec_CXX \
+hardcode_libdir_flag_spec_ld_CXX \
+hardcode_libdir_separator_CXX \
+exclude_expsyms_CXX \
+include_expsyms_CXX \
+file_list_spec_CXX \
+compiler_lib_search_dirs_CXX \
+predep_objects_CXX \
+postdep_objects_CXX \
+predeps_CXX \
+postdeps_CXX \
+compiler_lib_search_path_CXX; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in reload_cmds \
+old_postinstall_cmds \
+old_postuninstall_cmds \
+old_archive_cmds \
+extract_expsyms_cmds \
+old_archive_from_new_cmds \
+old_archive_from_expsyms_cmds \
+archive_cmds \
+archive_expsym_cmds \
+module_cmds \
+module_expsym_cmds \
+export_symbols_cmds \
+prelink_cmds \
+postlink_cmds \
+postinstall_cmds \
+postuninstall_cmds \
+finish_cmds \
+sys_lib_search_path_spec \
+sys_lib_dlsearch_path_spec \
+reload_cmds_CXX \
+old_archive_cmds_CXX \
+old_archive_from_new_cmds_CXX \
+old_archive_from_expsyms_cmds_CXX \
+archive_cmds_CXX \
+archive_expsym_cmds_CXX \
+module_cmds_CXX \
+module_expsym_cmds_CXX \
+export_symbols_cmds_CXX \
+prelink_cmds_CXX \
+postlink_cmds_CXX; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+ac_aux_dir='$ac_aux_dir'
+xsi_shell='$xsi_shell'
+lt_shell_append='$lt_shell_append'
+
+# See if we are running on zsh, and set the options which allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+
+
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    TIMESTAMP='$TIMESTAMP'
+    RM='$RM'
+    ofile='$ofile'
+
+
+
+
+
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+    "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "libpcre.pc") CONFIG_FILES="$CONFIG_FILES libpcre.pc" ;;
+    "libpcre16.pc") CONFIG_FILES="$CONFIG_FILES libpcre16.pc" ;;
+    "libpcreposix.pc") CONFIG_FILES="$CONFIG_FILES libpcreposix.pc" ;;
+    "libpcrecpp.pc") CONFIG_FILES="$CONFIG_FILES libpcrecpp.pc" ;;
+    "pcre-config") CONFIG_FILES="$CONFIG_FILES pcre-config" ;;
+    "pcre.h") CONFIG_FILES="$CONFIG_FILES pcre.h" ;;
+    "pcre_stringpiece.h") CONFIG_FILES="$CONFIG_FILES pcre_stringpiece.h" ;;
+    "pcrecpparg.h") CONFIG_FILES="$CONFIG_FILES pcrecpparg.h" ;;
+    "script-chmod") CONFIG_COMMANDS="$CONFIG_COMMANDS script-chmod" ;;
+    "delete-old-chartables") CONFIG_COMMANDS="$CONFIG_COMMANDS delete-old-chartables" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+  N
+  s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+# Set up the scripts for CONFIG_HEADERS section.
+# No need to generate them if there are no CONFIG_HEADERS.
+# This happens for instance with `./config.status Makefile'.
+if test -n "$CONFIG_HEADERS"; then
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
+BEGIN {
+_ACEOF
+
+# Transform confdefs.h into an awk script `defines.awk', embedded as
+# here-document in config.status, that substitutes the proper values into
+# config.h.in to produce config.h.
+
+# Create a delimiter string that does not exist in confdefs.h, to ease
+# handling of long lines.
+ac_delim='%!_!# '
+for ac_last_try in false false :; do
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+
+# For the awk script, D is an array of macro values keyed by name,
+# likewise P contains macro parameters if any.  Preserve backslash
+# newline sequences.
+
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+sed -n '
+s/.\{148\}/&'"$ac_delim"'/g
+t rset
+:rset
+s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
+t def
+d
+:def
+s/\\$//
+t bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3"/p
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
+d
+:bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3\\\\\\n"\\/p
+t cont
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
+t cont
+d
+:cont
+n
+s/.\{148\}/&'"$ac_delim"'/g
+t clear
+:clear
+s/\\$//
+t bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/"/p
+d
+:bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
+b cont
+' <confdefs.h | sed '
+s/'"$ac_delim"'/"\\\
+"/g' >>$CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  for (key in D) D_is_set[key] = 1
+  FS = ""
+}
+/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
+  line = \$ 0
+  split(line, arg, " ")
+  if (arg[1] == "#") {
+    defundef = arg[2]
+    mac1 = arg[3]
+  } else {
+    defundef = substr(arg[1], 2)
+    mac1 = arg[2]
+  }
+  split(mac1, mac2, "(") #)
+  macro = mac2[1]
+  prefix = substr(line, 1, index(line, defundef) - 1)
+  if (D_is_set[macro]) {
+    # Preserve the white space surrounding the "#".
+    print prefix "define", macro P[macro] D[macro]
+    next
+  } else {
+    # Replace #undef with comments.  This is necessary, for example,
+    # in the case of _POSIX_SOURCE, which is predefined and required
+    # on some systems where configure will not decide to define it.
+    if (defundef == "undef") {
+      print "/*", prefix defundef, macro, "*/"
+      next
+    }
+  }
+}
+{ print }
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+fi # test -n "$CONFIG_HEADERS"
+
+
+eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+  :H)
+  #
+  # CONFIG_HEADER
+  #
+  if test x"$ac_file" != x-; then
+    {
+      $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+$as_echo "$as_me: $ac_file is unchanged" >&6;}
+    else
+      rm -f "$ac_file"
+      mv "$ac_tmp/config.h" "$ac_file" \
+	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    fi
+  else
+    $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+      || as_fn_error $? "could not create -" "$LINENO" 5
+  fi
+# Compute "$ac_file"'s index in $config_headers.
+_am_arg="$ac_file"
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$_am_arg" : 'X\(//\)[^/]' \| \
+	 X"$_am_arg" : 'X\(//\)$' \| \
+	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$_am_arg" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`/stamp-h$_am_stamp_count
+ ;;
+
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+$as_echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
+  # Autoconf 2.62 quotes --file arguments for eval, but not when files
+  # are listed without --file.  Let's play safe and only enable the eval
+  # if we detect the quoting.
+  case $CONFIG_FILES in
+  *\'*) eval set x "$CONFIG_FILES" ;;
+  *)   set x $CONFIG_FILES ;;
+  esac
+  shift
+  for mf
+  do
+    # Strip MF so we end up with the name of the file.
+    mf=`echo "$mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile or not.
+    # We used to match only the files named `Makefile.in', but
+    # some people rename them; so instead we look at the file content.
+    # Grep'ing the first line is not enough: some people post-process
+    # each Makefile.in and add a new line on top of each file to say so.
+    # Grep'ing the whole file is not good either: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
+      dirpart=`$as_dirname -- "$mf" ||
+$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$mf" : 'X\(//\)[^/]' \| \
+	 X"$mf" : 'X\(//\)$' \| \
+	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$mf" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    else
+      continue
+    fi
+    # Extract the definition of DEPDIR, am__include, and am__quote
+    # from the Makefile without running `make'.
+    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+    test -z "$DEPDIR" && continue
+    am__include=`sed -n 's/^am__include = //p' < "$mf"`
+    test -z "am__include" && continue
+    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+    # When using ansi2knr, U may be empty or an underscore; expand it
+    U=`sed -n 's/^U = //p' < "$mf"`
+    # Find all dependency output files, they are included files with
+    # $(DEPDIR) in their names.  We invoke sed twice because it is the
+    # simplest approach to changing $(DEPDIR) to its actual value in the
+    # expansion.
+    for file in `sed -n "
+      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+      # Make sure the directory exists.
+      test -f "$dirpart/$file" && continue
+      fdir=`$as_dirname -- "$file" ||
+$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$file" : 'X\(//\)[^/]' \| \
+	 X"$file" : 'X\(//\)$' \| \
+	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      as_dir=$dirpart/$fdir; as_fn_mkdir_p
+      # echo "creating $dirpart/$file"
+      echo '# dummy' > "$dirpart/$file"
+    done
+  done
+}
+ ;;
+    "libtool":C)
+
+    # See if we are running on zsh, and set the options which allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}" ; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile="${ofile}T"
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+
+# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+#
+#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+#                 2006, 2007, 2008, 2009, 2010 Free Software Foundation,
+#                 Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+#   This file is part of GNU Libtool.
+#
+# GNU Libtool is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
+# obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+# The names of the tagged configurations supported by this script.
+available_tags="CXX "
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Assembler program.
+AS=$lt_AS
+
+# DLL creation program.
+DLLTOOL=$lt_DLLTOOL
+
+# Object dumper program.
+OBJDUMP=$lt_OBJDUMP
+
+# Which release of libtool.m4 was used?
+macro_version=$macro_version
+macro_revision=$macro_revision
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# What type of objects to build.
+pic_mode=$pic_mode
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# An echo program that protects backslashes.
+ECHO=$lt_ECHO
+
+# The host system.
+host_alias=$host_alias
+host=$host
+host_os=$host_os
+
+# The build system.
+build_alias=$build_alias
+build=$build
+build_os=$build_os
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="\$SED -e 1s/^X//"
+
+# A grep program that handles long lines.
+GREP=$lt_GREP
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# A literal string matcher.
+FGREP=$lt_FGREP
+
+# A BSD- or MS-compatible name lister.
+NM=$lt_NM
+
+# Whether we need soft or hard links.
+LN_S=$lt_LN_S
+
+# What is the maximum length of a command?
+max_cmd_len=$max_cmd_len
+
+# Object file suffix (normally "o").
+objext=$ac_objext
+
+# Executable file suffix (normally "").
+exeext=$exeext
+
+# whether the shell understands "unset".
+lt_unset=$lt_unset
+
+# turn spaces into newlines.
+SP2NL=$lt_lt_SP2NL
+
+# turn newlines into spaces.
+NL2SP=$lt_lt_NL2SP
+
+# convert \$build file names to \$host format.
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+
+# convert \$build files to toolchain format.
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method = "file_magic".
+file_magic_cmd=$lt_file_magic_cmd
+
+# How to find potential files when deplibs_check_method = "file_magic".
+file_magic_glob=$lt_file_magic_glob
+
+# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
+want_nocaseglob=$lt_want_nocaseglob
+
+# Command to associate shared and link libraries.
+sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd
+
+# The archiver.
+AR=$lt_AR
+
+# Flags to create an archive.
+AR_FLAGS=$lt_AR_FLAGS
+
+# How to feed a file listing to the archiver.
+archiver_list_spec=$lt_archiver_list_spec
+
+# A symbol stripping program.
+STRIP=$lt_STRIP
+
+# Commands used to install an old-style archive.
+RANLIB=$lt_RANLIB
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Whether to use a lock for old archive extraction.
+lock_old_archive_extraction=$lock_old_archive_extraction
+
+# A C compiler.
+LTCC=$lt_CC
+
+# LTCC compiler flags.
+LTCFLAGS=$lt_CFLAGS
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration.
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair.
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# Transform the output of nm in a C name address pair when lib prefix is needed.
+global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
+
+# Specify filename containing input files for \$NM.
+nm_file_list_spec=$lt_nm_file_list_spec
+
+# The root where to search for dependent libraries,and in which our libraries should be installed.
+lt_sysroot=$lt_sysroot
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# Used to examine libraries when file_magic_cmd begins with "file".
+MAGIC_CMD=$MAGIC_CMD
+
+# Must we lock files when doing compilation?
+need_locks=$lt_need_locks
+
+# Manifest tool.
+MANIFEST_TOOL=$lt_MANIFEST_TOOL
+
+# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
+DSYMUTIL=$lt_DSYMUTIL
+
+# Tool to change global to local symbols on Mac OS X.
+NMEDIT=$lt_NMEDIT
+
+# Tool to manipulate fat objects and archives on Mac OS X.
+LIPO=$lt_LIPO
+
+# ldd/readelf like tool for Mach-O binaries on Mac OS X.
+OTOOL=$lt_OTOOL
+
+# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
+OTOOL64=$lt_OTOOL64
+
+# Old archive suffix (normally "a").
+libext=$libext
+
+# Shared library suffix (normally ".so").
+shrext_cmds=$lt_shrext_cmds
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at link time.
+variables_saved_for_relink=$lt_variables_saved_for_relink
+
+# Do we need the "lib" prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Library versioning type.
+version_type=$version_type
+
+# Shared library runtime path variable.
+runpath_var=$runpath_var
+
+# Shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Permission mode override for installation of shared libraries.
+install_override_mode=$lt_install_override_mode
+
+# Command to use after installation of a shared archive.
+postinstall_cmds=$lt_postinstall_cmds
+
+# Command to use after uninstallation of a shared archive.
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# As "finish_cmds", except a single script fragment to be evaled but
+# not shown.
+finish_eval=$lt_finish_eval
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Compile-time system search path for libraries.
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries.
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+
+# The linker used to build libraries.
+LD=$lt_LD
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds
+
+# A language specific compiler.
+CC=$lt_compiler
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds
+archive_expsym_cmds=$lt_archive_expsym_cmds
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds
+module_expsym_cmds=$lt_module_expsym_cmds
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
+
+# If ld is used when linking, flag to hardcode \$libdir into a binary
+# during linking.  This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects
+postdep_objects=$lt_postdep_objects
+predeps=$lt_predeps
+postdeps=$lt_postdeps
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path
+
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "X${COLLECT_NAMES+set}" != Xset; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+
+ltmain="$ac_aux_dir/ltmain.sh"
+
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+  if test x"$xsi_shell" = xyes; then
+  sed -e '/^func_dirname ()$/,/^} # func_dirname /c\
+func_dirname ()\
+{\
+\    case ${1} in\
+\      */*) func_dirname_result="${1%/*}${2}" ;;\
+\      *  ) func_dirname_result="${3}" ;;\
+\    esac\
+} # Extended-shell func_dirname implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_basename ()$/,/^} # func_basename /c\
+func_basename ()\
+{\
+\    func_basename_result="${1##*/}"\
+} # Extended-shell func_basename implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_dirname_and_basename ()$/,/^} # func_dirname_and_basename /c\
+func_dirname_and_basename ()\
+{\
+\    case ${1} in\
+\      */*) func_dirname_result="${1%/*}${2}" ;;\
+\      *  ) func_dirname_result="${3}" ;;\
+\    esac\
+\    func_basename_result="${1##*/}"\
+} # Extended-shell func_dirname_and_basename implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_stripname ()$/,/^} # func_stripname /c\
+func_stripname ()\
+{\
+\    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are\
+\    # positional parameters, so assign one to ordinary parameter first.\
+\    func_stripname_result=${3}\
+\    func_stripname_result=${func_stripname_result#"${1}"}\
+\    func_stripname_result=${func_stripname_result%"${2}"}\
+} # Extended-shell func_stripname implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_split_long_opt ()$/,/^} # func_split_long_opt /c\
+func_split_long_opt ()\
+{\
+\    func_split_long_opt_name=${1%%=*}\
+\    func_split_long_opt_arg=${1#*=}\
+} # Extended-shell func_split_long_opt implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_split_short_opt ()$/,/^} # func_split_short_opt /c\
+func_split_short_opt ()\
+{\
+\    func_split_short_opt_arg=${1#??}\
+\    func_split_short_opt_name=${1%"$func_split_short_opt_arg"}\
+} # Extended-shell func_split_short_opt implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_lo2o ()$/,/^} # func_lo2o /c\
+func_lo2o ()\
+{\
+\    case ${1} in\
+\      *.lo) func_lo2o_result=${1%.lo}.${objext} ;;\
+\      *)    func_lo2o_result=${1} ;;\
+\    esac\
+} # Extended-shell func_lo2o implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_xform ()$/,/^} # func_xform /c\
+func_xform ()\
+{\
+    func_xform_result=${1%.*}.lo\
+} # Extended-shell func_xform implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_arith ()$/,/^} # func_arith /c\
+func_arith ()\
+{\
+    func_arith_result=$(( $* ))\
+} # Extended-shell func_arith implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_len ()$/,/^} # func_len /c\
+func_len ()\
+{\
+    func_len_result=${#1}\
+} # Extended-shell func_len implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+fi
+
+if test x"$lt_shell_append" = xyes; then
+  sed -e '/^func_append ()$/,/^} # func_append /c\
+func_append ()\
+{\
+    eval "${1}+=\\${2}"\
+} # Extended-shell func_append implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_append_quoted ()$/,/^} # func_append_quoted /c\
+func_append_quoted ()\
+{\
+\    func_quote_for_eval "${2}"\
+\    eval "${1}+=\\\\ \\$func_quote_for_eval_result"\
+} # Extended-shell func_append_quoted implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  # Save a `func_append' function call where possible by direct use of '+='
+  sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \
+    && mv -f "$cfgfile.tmp" "$cfgfile" \
+      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+  test 0 -eq $? || _lt_function_replace_fail=:
+else
+  # Save a `func_append' function call even when '+=' is not available
+  sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \
+    && mv -f "$cfgfile.tmp" "$cfgfile" \
+      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+  test 0 -eq $? || _lt_function_replace_fail=:
+fi
+
+if test x"$_lt_function_replace_fail" = x":"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Unable to substitute extended shell functions in $ofile" >&5
+$as_echo "$as_me: WARNING: Unable to substitute extended shell functions in $ofile" >&2;}
+fi
+
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+
+
+    cat <<_LT_EOF >> "$ofile"
+
+# ### BEGIN LIBTOOL TAG CONFIG: CXX
+
+# The linker used to build libraries.
+LD=$lt_LD_CXX
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag_CXX
+reload_cmds=$lt_reload_cmds_CXX
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds_CXX
+
+# A language specific compiler.
+CC=$lt_compiler_CXX
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC_CXX
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_CXX
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_CXX
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_CXX
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_CXX
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object_CXX
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds_CXX
+archive_expsym_cmds=$lt_archive_expsym_cmds_CXX
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds_CXX
+module_expsym_cmds=$lt_module_expsym_cmds_CXX
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld_CXX
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_CXX
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_CXX
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX
+
+# If ld is used when linking, flag to hardcode \$libdir into a binary
+# during linking.  This must work even if \$libdir does not exist.
+hardcode_libdir_flag_spec_ld=$lt_hardcode_libdir_flag_spec_ld_CXX
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct_CXX
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute_CXX
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L_CXX
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic_CXX
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath_CXX
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_CXX
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols_CXX
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_CXX
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_CXX
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_CXX
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds_CXX
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds_CXX
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec_CXX
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_CXX
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects_CXX
+postdep_objects=$lt_postdep_objects_CXX
+predeps=$lt_predeps_CXX
+postdeps=$lt_postdeps_CXX
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_CXX
+
+# ### END LIBTOOL TAG CONFIG: CXX
+_LT_EOF
+
+ ;;
+    "script-chmod":C) chmod a+x pcre-config ;;
+    "delete-old-chartables":C) rm -f pcre_chartables.c ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
+
+# Print out a nice little message after configure is run displaying your
+# chosen options.
+
+cat <<EOF
+
+$PACKAGE-$VERSION configuration summary:
+
+    Install prefix .................. : ${prefix}
+    C preprocessor .................. : ${CPP}
+    C compiler ...................... : ${CC}
+    C++ preprocessor ................ : ${CXXCPP}
+    C++ compiler .................... : ${CXX}
+    Linker .......................... : ${LD}
+    C preprocessor flags ............ : ${CPPFLAGS}
+    C compiler flags ................ : ${CFLAGS}
+    C++ compiler flags .............. : ${CXXFLAGS}
+    Linker flags .................... : ${LDFLAGS}
+    Extra libraries ................. : ${LIBS}
+
+    Build 8 bit pcre library ........ : ${enable_pcre8}
+    Build 16 bit pcre library ....... : ${enable_pcre16}
+    Build C++ library ............... : ${enable_cpp}
+    Enable JIT compiling support .... : ${enable_jit}
+    Enable UTF-8/16 support ......... : ${enable_utf}
+    Unicode properties .............. : ${enable_unicode_properties}
+    Newline char/sequence ........... : ${enable_newline}
+    \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
+    EBCDIC coding ................... : ${enable_ebcdic}
+    Rebuild char tables ............. : ${enable_rebuild_chartables}
+    Use stack recursion ............. : ${enable_stack_for_recursion}
+    POSIX mem threshold ............. : ${with_posix_malloc_threshold}
+    Internal link size .............. : ${with_link_size}
+    Match limit ..................... : ${with_match_limit}
+    Match limit recursion ........... : ${with_match_limit_recursion}
+    Build shared libs ............... : ${enable_shared}
+    Build static libs ............... : ${enable_static}
+    Use JIT in pcregrep ............. : ${enable_pcregrep_jit}
+    Buffer size for pcregrep ........ : ${with_pcregrep_bufsize}
+    Link pcregrep with libz ......... : ${enable_pcregrep_libz}
+    Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
+    Link pcretest with libedit ...... : ${enable_pcretest_libedit}
+    Link pcretest with libreadline .. : ${enable_pcretest_libreadline}
+
+EOF
+
diff --git a/8.31/configure.ac b/8.31/configure.ac
new file mode 100644
index 0000000..e5c0cec
--- /dev/null
+++ b/8.31/configure.ac
@@ -0,0 +1,935 @@
+dnl Process this file with autoconf to produce a configure script.
+
+dnl NOTE FOR MAINTAINERS: Do not use minor version numbers 08 or 09 because
+dnl the leading zeros may cause them to be treated as invalid octal constants
+dnl if a PCRE user writes code that uses PCRE_MINOR as a number. There is now
+dnl a check further down that throws an error if 08 or 09 are used.
+
+dnl The PCRE_PRERELEASE feature is for identifying release candidates. It might
+dnl be defined as -RC2, for example. For real releases, it should be empty.
+
+m4_define(pcre_major, [8])
+m4_define(pcre_minor, [31])
+m4_define(pcre_prerelease, [])
+m4_define(pcre_date, [2012-07-06])
+
+# NOTE: The CMakeLists.txt file searches for the above variables in the first
+# 50 lines of this file. Please update that if the variables above are moved.
+
+# Libtool shared library interface versions (current:revision:age)
+m4_define(libpcre_version, [1:1:0])
+m4_define(libpcre16_version, [0:1:0])
+m4_define(libpcreposix_version, [0:1:0])
+m4_define(libpcrecpp_version, [0:0:0])
+
+AC_PREREQ(2.57)
+AC_INIT(PCRE, pcre_major.pcre_minor[]pcre_prerelease, , pcre)
+AC_CONFIG_SRCDIR([pcre.h.in])
+AM_INIT_AUTOMAKE([dist-bzip2 dist-zip])
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+AC_CONFIG_HEADERS(config.h)
+
+# This was added at the suggestion of libtoolize (03-Jan-10)
+AC_CONFIG_MACRO_DIR([m4])
+
+# The default CFLAGS and CXXFLAGS in Autoconf are "-g -O2" for gcc and just
+# "-g" for any other compiler. There doesn't seem to be a standard way of
+# getting rid of the -g (which I don't think is needed for a production
+# library). This fudge seems to achieve the necessary. First, we remember the
+# externally set values of CFLAGS and CXXFLAGS. Then call the AC_PROG_CC and
+# AC_PROG_CXX macros to find the compilers - if CFLAGS and CXXFLAGS are not
+# set, they will be set to Autoconf's defaults. Afterwards, if the original
+# values were not set, remove the -g from the Autoconf defaults.
+# (PH 02-May-07)
+
+remember_set_CFLAGS="$CFLAGS"
+remember_set_CXXFLAGS="$CXXFLAGS"
+
+AC_PROG_CC
+AC_PROG_CXX
+
+if test "x$remember_set_CFLAGS" = "x"
+then
+  if test "$CFLAGS" = "-g -O2"
+  then
+    CFLAGS="-O2"
+  elif test "$CFLAGS" = "-g"
+  then
+    CFLAGS=""
+  fi
+fi
+
+if test "x$remember_set_CXXFLAGS" = "x"
+then
+  if test "$CXXFLAGS" = "-g -O2"
+  then
+    CXXFLAGS="-O2"
+  elif test "$CXXFLAGS" = "-g"
+  then
+    CXXFLAGS=""
+  fi
+fi
+
+# AC_PROG_CXX will return "g++" even if no c++ compiler is installed.
+# Check for that case, and just disable c++ code if g++ doesn't run.
+AC_LANG_PUSH(C++)
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],, CXX=""; CXXCP=""; CXXFLAGS="")
+AC_LANG_POP
+
+# Check for a 64-bit integer type
+AC_TYPE_INT64_T
+
+AC_PROG_INSTALL
+AC_LIBTOOL_WIN32_DLL
+LT_INIT
+AC_PROG_LN_S
+
+PCRE_MAJOR="pcre_major"
+PCRE_MINOR="pcre_minor"
+PCRE_PRERELEASE="pcre_prerelease"
+PCRE_DATE="pcre_date"
+
+if test "$PCRE_MINOR" = "08" -o "$PCRE_MINOR" = "09"
+then
+  echo "***"
+  echo "*** Minor version number $PCRE_MINOR must not be used. ***"
+  echo "*** Use only 01 to 07 or 10 onwards, to avoid octal issues. ***"
+  echo "***"
+  exit 1
+fi
+
+AC_SUBST(PCRE_MAJOR)
+AC_SUBST(PCRE_MINOR)
+AC_SUBST(PCRE_PRERELEASE)
+AC_SUBST(PCRE_DATE)
+
+# Set a more sensible default value for $(htmldir).
+if test "x$htmldir" = 'x${docdir}'
+then
+  htmldir='${docdir}/html'
+fi
+
+# Handle --disable-pcre8 (enabled by default)
+AC_ARG_ENABLE(pcre8,
+              AS_HELP_STRING([--disable-pcre8],
+                             [disable 8 bit character support]),
+              , enable_pcre8=unset)
+AC_SUBST(enable_pcre8)
+
+# Handle --enable-pcre16 (disabled by default)
+AC_ARG_ENABLE(pcre16,
+              AS_HELP_STRING([--enable-pcre16],
+                             [enable 16 bit character support]),
+              , enable_pcre16=unset)
+AC_SUBST(enable_pcre16)
+
+# Handle --disable-cpp. The substitution of enable_cpp is needed for use in
+# pcre-config.
+AC_ARG_ENABLE(cpp,
+              AS_HELP_STRING([--disable-cpp],
+                             [disable C++ support]),
+              , enable_cpp=unset)
+AC_SUBST(enable_cpp)
+
+# Handle --enable-jit (disabled by default)
+AC_ARG_ENABLE(jit,
+              AS_HELP_STRING([--enable-jit],
+                             [enable Just-In-Time compiling support]),
+              , enable_jit=no)
+
+# Handle --disable-pcregrep-jit (enabled by default)
+AC_ARG_ENABLE(pcregrep-jit,
+              AS_HELP_STRING([--disable-pcregrep-jit],
+                             [disable JIT support in pcregrep]),
+              , enable_pcregrep_jit=yes)
+
+# Handle --enable-rebuild-chartables
+AC_ARG_ENABLE(rebuild-chartables,
+              AS_HELP_STRING([--enable-rebuild-chartables],
+                             [rebuild character tables in current locale]),
+              , enable_rebuild_chartables=no)
+
+# Handle --enable-utf8 (disabled by default)
+AC_ARG_ENABLE(utf8,
+              AS_HELP_STRING([--enable-utf8],
+                             [another name for --enable-utf. Kept only for compatibility reasons]),
+              , enable_utf8=unset)
+
+# Handle --enable-utf (disabled by default)
+AC_ARG_ENABLE(utf,
+              AS_HELP_STRING([--enable-utf],
+                             [enable UTF-8/16 support (incompatible with --enable-ebcdic)]),
+              , enable_utf=unset)
+
+# Handle --enable-unicode-properties
+AC_ARG_ENABLE(unicode-properties,
+              AS_HELP_STRING([--enable-unicode-properties],
+                             [enable Unicode properties support (implies --enable-utf)]),
+              , enable_unicode_properties=no)
+
+# Handle --enable-newline=NL
+dnl AC_ARG_ENABLE(newline,
+dnl               AS_HELP_STRING([--enable-newline=NL],
+dnl                              [use NL as newline (lf, cr, crlf, anycrlf, any; default=lf)]),
+dnl               , enable_newline=lf)
+
+# Separate newline options
+ac_pcre_newline=lf
+AC_ARG_ENABLE(newline-is-cr,
+              AS_HELP_STRING([--enable-newline-is-cr],
+                             [use CR as newline character]),
+              ac_pcre_newline=cr)
+AC_ARG_ENABLE(newline-is-lf,
+              AS_HELP_STRING([--enable-newline-is-lf],
+                             [use LF as newline character (default)]),
+              ac_pcre_newline=lf)
+AC_ARG_ENABLE(newline-is-crlf,
+              AS_HELP_STRING([--enable-newline-is-crlf],
+                             [use CRLF as newline sequence]),
+              ac_pcre_newline=crlf)
+AC_ARG_ENABLE(newline-is-anycrlf,
+              AS_HELP_STRING([--enable-newline-is-anycrlf],
+                             [use CR, LF, or CRLF as newline sequence]),
+              ac_pcre_newline=anycrlf)
+AC_ARG_ENABLE(newline-is-any,
+              AS_HELP_STRING([--enable-newline-is-any],
+                             [use any valid Unicode newline sequence]),
+              ac_pcre_newline=any)
+enable_newline="$ac_pcre_newline"
+
+# Handle --enable-bsr-anycrlf
+AC_ARG_ENABLE(bsr-anycrlf,
+              AS_HELP_STRING([--enable-bsr-anycrlf],
+                             [\R matches only CR, LF, CRLF by default]),
+              , enable_bsr_anycrlf=no)
+
+# Handle --enable-ebcdic
+AC_ARG_ENABLE(ebcdic,
+              AS_HELP_STRING([--enable-ebcdic],
+                             [assume EBCDIC coding rather than ASCII; incompatible with --enable-utf; use only in (uncommon) EBCDIC environments; it implies --enable-rebuild-chartables]),
+              , enable_ebcdic=no)
+
+# Handle --disable-stack-for-recursion
+AC_ARG_ENABLE(stack-for-recursion,
+              AS_HELP_STRING([--disable-stack-for-recursion],
+                             [don't use stack recursion when matching]),
+              , enable_stack_for_recursion=yes)
+
+# Handle --enable-pcregrep-libz
+AC_ARG_ENABLE(pcregrep-libz,
+              AS_HELP_STRING([--enable-pcregrep-libz],
+                             [link pcregrep with libz to handle .gz files]),
+              , enable_pcregrep_libz=no)
+
+# Handle --enable-pcregrep-libbz2
+AC_ARG_ENABLE(pcregrep-libbz2,
+              AS_HELP_STRING([--enable-pcregrep-libbz2],
+                             [link pcregrep with libbz2 to handle .bz2 files]),
+              , enable_pcregrep_libbz2=no)
+
+# Handle --with-pcregrep-bufsize=N
+AC_ARG_WITH(pcregrep-bufsize,
+              AS_HELP_STRING([--with-pcregrep-bufsize=N],
+                             [pcregrep buffer size (default=20480)]),
+              , with_pcregrep_bufsize=20480)
+
+# Handle --enable-pcretest-libedit
+AC_ARG_ENABLE(pcretest-libedit,
+              AS_HELP_STRING([--enable-pcretest-libedit],
+                             [link pcretest with libedit]),
+              , enable_pcretest_libedit=no)
+
+# Handle --enable-pcretest-libreadline
+AC_ARG_ENABLE(pcretest-libreadline,
+              AS_HELP_STRING([--enable-pcretest-libreadline],
+                             [link pcretest with libreadline]),
+              , enable_pcretest_libreadline=no)
+
+# Handle --with-posix-malloc-threshold=NBYTES
+AC_ARG_WITH(posix-malloc-threshold,
+            AS_HELP_STRING([--with-posix-malloc-threshold=NBYTES],
+                           [threshold for POSIX malloc usage (default=10)]),
+            , with_posix_malloc_threshold=10)
+
+# Handle --with-link-size=N
+AC_ARG_WITH(link-size,
+            AS_HELP_STRING([--with-link-size=N],
+                           [internal link size (2, 3, or 4 allowed; default=2)]),
+            , with_link_size=2)
+
+# Handle --with-match-limit=N
+AC_ARG_WITH(match-limit,
+            AS_HELP_STRING([--with-match-limit=N],
+                           [default limit on internal looping (default=10000000)]),
+            , with_match_limit=10000000)
+
+# Handle --with-match-limit_recursion=N
+#
+# Note: In config.h, the default is to define MATCH_LIMIT_RECURSION
+# symbolically as MATCH_LIMIT, which in turn is defined to be some numeric
+# value (e.g. 10000000). MATCH_LIMIT_RECURSION can otherwise be set to some
+# different numeric value (or even the same numeric value as MATCH_LIMIT,
+# though no longer defined in terms of the latter).
+#
+AC_ARG_WITH(match-limit-recursion,
+            AS_HELP_STRING([--with-match-limit-recursion=N],
+                           [default limit on internal recursion (default=MATCH_LIMIT)]),
+            , with_match_limit_recursion=MATCH_LIMIT)
+
+# Copy enable_utf8 value to enable_utf for compatibility reasons
+if test "x$enable_utf8" != "xunset"
+then
+  if test "x$enable_utf" != "xunset"
+  then
+    AC_MSG_ERROR([--enable/disable-utf8 is kept only for compatibility reasons and its value is copied to --enable/disable-utf. Newer code must use --enable/disable-utf alone.])
+  fi
+  enable_utf=$enable_utf8
+fi
+
+# Set the default value for pcre8
+if test "x$enable_pcre8" = "xunset"
+then
+  enable_pcre8=yes
+fi
+
+# Set the default value for pcre16
+if test "x$enable_pcre16" = "xunset"
+then
+  enable_pcre16=no
+fi
+
+# Make sure enable_pcre8 or enable_pcre16 was set
+if test "x$enable_pcre8$enable_pcre16" = "xnono"
+then
+  AC_MSG_ERROR([Either 8 or 16 bit (or both) pcre library must be enabled])
+fi
+
+# Make sure that if enable_unicode_properties was set, that UTF support is enabled.
+if test "x$enable_unicode_properties" = "xyes"
+then
+  if test "x$enable_utf" = "xno"
+  then
+    AC_MSG_ERROR([support for Unicode properties requires UTF-8/16 support])
+  fi
+  enable_utf=yes
+fi
+
+# enable_utf is disabled by default.
+if test "x$enable_utf" = "xunset"
+then
+  enable_utf=no
+fi
+
+# enable_cpp copies the value of enable_pcre8 by default
+if test "x$enable_cpp" = "xunset"
+then
+  enable_cpp=$enable_pcre8
+fi
+
+# Make sure that if enable_cpp was set, that enable_pcre8 support is enabled
+if test "x$enable_cpp" = "xyes"
+then
+  if test "x$enable_pcre8" = "xno"
+  then
+    AC_MSG_ERROR([C++ library requires pcre library with 8 bit characters])
+  fi
+fi
+
+# Make sure that if enable_ebcdic is set, rebuild_chartables is also enabled.
+# Also check that UTF support is not requested, because PCRE cannot handle
+# EBCDIC and UTF in the same build. To do so it would need to use different
+# character constants depending on the mode.
+#
+if test "x$enable_ebcdic" = "xyes"
+then
+  enable_rebuild_chartables=yes
+  if test "x$enable_utf" = "xyes"
+  then
+    AC_MSG_ERROR([support for EBCDIC and UTF-8/16 cannot be enabled at the same time])
+  fi
+fi
+
+# Convert the newline identifier into the appropriate integer value.
+case "$enable_newline" in
+  lf)      ac_pcre_newline_value=10   ;;
+  cr)      ac_pcre_newline_value=13   ;;
+  crlf)    ac_pcre_newline_value=3338 ;;
+  anycrlf) ac_pcre_newline_value=-2   ;;
+  any)     ac_pcre_newline_value=-1   ;;
+  *)
+  AC_MSG_ERROR([invalid argument \"$enable_newline\" to --enable-newline option])
+  ;;
+esac
+
+# Check argument to --with-link-size
+case "$with_link_size" in
+  2|3|4) ;;
+  *)
+  AC_MSG_ERROR([invalid argument \"$with_link_size\" to --with-link-size option])
+  ;;
+esac
+
+AH_TOP([
+/* On Unix-like systems config.h.in is converted by "configure" into config.h.
+Some other environments also support the use of "configure". PCRE is written in
+Standard C, but there are a few non-standard things it can cope with, allowing
+it to run on SunOS4 and other "close to standard" systems.
+
+If you are going to build PCRE "by hand" on a system without "configure" you
+should copy the distributed config.h.generic to config.h, and then set up the
+macro definitions the way you need them. You must then add -DHAVE_CONFIG_H to
+all of your compile commands, so that config.h is included at the start of
+every source.
+
+Alternatively, you can avoid editing by using -D on the compiler command line
+to set the macro values. In this case, you do not have to set -DHAVE_CONFIG_H.
+
+PCRE uses memmove() if HAVE_MEMMOVE is set to 1; otherwise it uses bcopy() if
+HAVE_BCOPY is set to 1. If your system has neither bcopy() nor memmove(), set
+them both to 0; an emulation function will be used. */])
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS(limits.h sys/types.h sys/stat.h dirent.h windows.h)
+
+# The files below are C++ header files.
+pcre_have_type_traits="0"
+pcre_have_bits_type_traits="0"
+if test "x$enable_cpp" = "xyes" -a -n "$CXX"
+then
+AC_LANG_PUSH(C++)
+
+# Older versions of pcre defined pcrecpp::no_arg, but in new versions
+# it's called pcrecpp::RE::no_arg.  For backwards ABI compatibility,
+# we want to make one an alias for the other.  Different systems do
+# this in different ways.  Some systems, for instance, can do it via
+# a linker flag: -alias (for os x 10.5) or -i (for os x <=10.4).
+OLD_LDFLAGS="$LDFLAGS"
+for flag in "-alias,__ZN7pcrecpp2RE6no_argE,__ZN7pcrecpp6no_argE" \
+            "-i__ZN7pcrecpp6no_argE:__ZN7pcrecpp2RE6no_argE"; do
+  AC_MSG_CHECKING([for alias support in the linker])
+  LDFLAGS="$OLD_LDFLAGS -Wl,$flag"
+  # We try to run the linker with this new ld flag.  If the link fails,
+  # we give up and remove the new flag from LDFLAGS.
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([namespace pcrecpp {
+                                    class RE { static int no_arg; };
+                                    int RE::no_arg;
+                                  }],
+                                 [])],
+                 [AC_MSG_RESULT([yes]);
+                  EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS -Wl,$flag";
+                  break;],
+                 AC_MSG_RESULT([no]))
+done
+LDFLAGS="$OLD_LDFLAGS"
+
+# We could be more clever here, given we're doing AC_SUBST with this
+# (eg set a var to be the name of the include file we want). But we're not
+# so it's easy to change back to 'regular' autoconf vars if we needed to.
+AC_CHECK_HEADERS(string, [pcre_have_cpp_headers="1"],
+                         [pcre_have_cpp_headers="0"])
+AC_CHECK_HEADERS(bits/type_traits.h, [pcre_have_bits_type_traits="1"],
+                                     [pcre_have_bits_type_traits="0"])
+AC_CHECK_HEADERS(type_traits.h, [pcre_have_type_traits="1"],
+                                [pcre_have_type_traits="0"])
+
+# (This isn't c++-specific, but is only used in pcrecpp.cc, so try this
+# in a c++ context.  This matters becuase strtoimax is C99 and may not
+# be supported by the C++ compiler.)
+# Figure out how to create a longlong from a string: strtoll and
+# equiv.  It's not enough to call AC_CHECK_FUNCS: hpux has a
+# strtoll, for instance, but it only takes 2 args instead of 3!
+# We have to call AH_TEMPLATE since AC_DEFINE_UNQUOTED below is complex.
+AH_TEMPLATE(HAVE_STRTOQ, [Define to 1 if you have `strtoq'.])
+AH_TEMPLATE(HAVE_STRTOLL, [Define to 1 if you have `strtoll'.])
+AH_TEMPLATE(HAVE__STRTOI64, [Define to 1 if you have `_strtoi64'.])
+AH_TEMPLATE(HAVE_STRTOIMAX, [Define to 1 if you have `strtoimax'.])
+have_strto_fn=0
+for fn in strtoq strtoll _strtoi64 strtoimax; do
+  AC_MSG_CHECKING([for $fn])
+  if test "$fn" = strtoimax; then
+    include=stdint.h
+  else
+    include=stdlib.h
+  fi
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <$include>],
+                                    [char* e; return $fn("100", &e, 10)])],
+                    [AC_MSG_RESULT(yes)
+                     AC_DEFINE_UNQUOTED(HAVE_`echo $fn | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`, 1,
+                                        [Define to 1 if you have `$fn'.])
+                     have_strto_fn=1
+                     break],
+                    [AC_MSG_RESULT(no)])
+done
+
+if test "$have_strto_fn" = 1; then
+  AC_CHECK_TYPES([long long],
+                 [pcre_have_long_long="1"],
+                 [pcre_have_long_long="0"])
+  AC_CHECK_TYPES([unsigned long long],
+                 [pcre_have_ulong_long="1"],
+                 [pcre_have_ulong_long="0"])
+else
+  pcre_have_long_long="0"
+  pcre_have_ulong_long="0"
+fi
+AC_SUBST(pcre_have_long_long)
+AC_SUBST(pcre_have_ulong_long)
+
+AC_LANG_POP
+fi
+# Using AC_SUBST eliminates the need to include config.h in a public .h file
+AC_SUBST(pcre_have_type_traits)
+AC_SUBST(pcre_have_bits_type_traits)
+
+# Conditional compilation
+AM_CONDITIONAL(WITH_PCRE8, test "x$enable_pcre8" = "xyes")
+AM_CONDITIONAL(WITH_PCRE16, test "x$enable_pcre16" = "xyes")
+AM_CONDITIONAL(WITH_PCRE_CPP, test "x$enable_cpp" = "xyes")
+AM_CONDITIONAL(WITH_REBUILD_CHARTABLES, test "x$enable_rebuild_chartables" = "xyes")
+AM_CONDITIONAL(WITH_JIT, test "x$enable_jit" = "xyes")
+AM_CONDITIONAL(WITH_UTF, test "x$enable_utf" = "xyes")
+
+# Checks for typedefs, structures, and compiler characteristics.
+
+AC_C_CONST
+AC_TYPE_SIZE_T
+
+# Checks for library functions.
+
+AC_CHECK_FUNCS(bcopy memmove strerror)
+
+# Check for the availability of libz (aka zlib)
+
+AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H=1])
+AC_CHECK_LIB([z], [gzopen], [HAVE_LIBZ=1])
+
+# Check for the availability of libbz2. Originally we just used AC_CHECK_LIB,
+# as for libz. However, this had the following problem, diagnosed and fixed by
+# a user:
+#
+#   - libbz2 uses the Pascal calling convention (WINAPI) for the functions
+#     under Win32.
+#   - The standard autoconf AC_CHECK_LIB fails to include "bzlib.h",
+#     therefore missing the function definition.
+#   - The compiler thus generates a "C" signature for the test function.
+#   - The linker fails to find the "C" function.
+#   - PCRE fails to configure if asked to do so against libbz2.
+#
+# Solution:
+#
+#   - Replace the AC_CHECK_LIB test with a custom test.
+
+AC_CHECK_HEADERS([bzlib.h], [HAVE_BZLIB_H=1])
+# Original test
+# AC_CHECK_LIB([bz2], [BZ2_bzopen], [HAVE_LIBBZ2=1])
+#
+# Custom test follows
+
+AC_MSG_CHECKING([for libbz2])
+OLD_LIBS="$LIBS"
+LIBS="$LIBS -lbz2"
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+#ifdef HAVE_BZLIB_H
+#include <bzlib.h>
+#endif]],
+[[return (int)BZ2_bzopen("conftest", "rb");]])],
+[AC_MSG_RESULT([yes]);HAVE_LIBBZ2=1; break;],
+AC_MSG_RESULT([no]))
+LIBS="$OLD_LIBS"
+
+# Check for the availabiity of libreadline
+
+if test "$enable_pcretest_libreadline" = "yes"; then
+ AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_H=1])
+ AC_CHECK_HEADERS([readline/history.h], [HAVE_HISTORY_H=1])
+ AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lreadline"],
+   [unset ac_cv_lib_readline_readline;
+    AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-ltinfo"],
+     [unset ac_cv_lib_readline_readline;
+      AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lcurses"],
+       [unset ac_cv_lib_readline_readline;
+        AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lncurses"],
+         [unset ac_cv_lib_readline_readline;
+	  AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-lncursesw"],
+           [unset ac_cv_lib_readline_readline;
+	    AC_CHECK_LIB([readline], [readline], [LIBREADLINE="-ltermcap"],
+             [LIBREADLINE=""],
+             [-ltermcap])],
+           [-lncursesw])],
+         [-lncurses])],
+       [-lcurses])],
+     [-ltinfo])])
+ AC_SUBST(LIBREADLINE)
+ if test -n "$LIBREADLINE"; then
+   if test "$LIBREADLINE" != "-lreadline"; then
+     echo "-lreadline needs $LIBREADLINE"
+     LIBREADLINE="-lreadline $LIBREADLINE"
+   fi
+ fi
+fi
+
+
+# Check for the availability of libedit. Different distributions put its
+# headers in different places. Try to cover the most common ones.
+
+if test "$enable_pcretest_libedit" = "yes"; then
+  AC_CHECK_HEADERS([editline/readline.h], [HAVE_EDITLINE_READLINE_H=1],
+    [AC_CHECK_HEADERS([edit/readline/readline.h], [HAVE_READLINE_READLINE_H=1],
+      [AC_CHECK_HEADERS([readline/readline.h], [HAVE_READLINE_READLINE_H=1])])])
+  AC_CHECK_LIB([edit], [readline], [LIBEDIT="-ledit"])
+fi
+
+# This facilitates -ansi builds under Linux
+dnl AC_DEFINE([_GNU_SOURCE], [], [Enable GNU extensions in glibc])
+
+PCRE_STATIC_CFLAG=""
+if test "x$enable_shared" = "xno" ; then
+  AC_DEFINE([PCRE_STATIC], [1], [
+    Define if linking statically (TODO: make nice with Libtool)])
+  PCRE_STATIC_CFLAG="-DPCRE_STATIC"
+fi
+AC_SUBST(PCRE_STATIC_CFLAG)
+
+# Here is where pcre specific defines are handled
+
+if test "$enable_pcre8" = "yes"; then
+  AC_DEFINE([SUPPORT_PCRE8], [], [
+    Define to enable the 8 bit PCRE library.])
+fi
+
+if test "$enable_pcre16" = "yes"; then
+  AC_DEFINE([SUPPORT_PCRE16], [], [
+    Define to enable the 16 bit PCRE library.])
+fi
+
+if test "$enable_jit" = "yes"; then
+  AC_DEFINE([SUPPORT_JIT], [], [
+    Define to enable support for Just-In-Time compiling.])
+else
+  enable_pcregrep_jit="no"
+fi
+
+if test "$enable_pcregrep_jit" = "yes"; then
+  AC_DEFINE([SUPPORT_PCREGREP_JIT], [], [
+    Define to enable JIT support in pcregrep.])
+fi
+
+if test "$enable_utf" = "yes"; then
+  AC_DEFINE([SUPPORT_UTF], [], [
+    Define to enable support for the UTF-8/16 Unicode encoding. This
+    will work even in an EBCDIC environment, but it is incompatible
+    with the EBCDIC macro. That is, PCRE can support *either* EBCDIC
+    code *or* ASCII/UTF-8/16, but not both at once.])
+fi
+
+if test "$enable_unicode_properties" = "yes"; then
+  AC_DEFINE([SUPPORT_UCP], [], [
+    Define to enable support for Unicode properties.])
+fi
+
+if test "$enable_stack_for_recursion" = "no"; then
+  AC_DEFINE([NO_RECURSE], [], [
+    PCRE uses recursive function calls to handle backtracking while
+    matching. This can sometimes be a problem on systems that have
+    stacks of limited size. Define NO_RECURSE to get a version that
+    doesn't use recursion in the match() function; instead it creates
+    its own stack by steam using pcre_recurse_malloc() to obtain memory
+    from the heap. For more detail, see the comments and other stuff
+    just above the match() function. On systems that support it,
+    "configure" can be used to set this in the Makefile
+    (use --disable-stack-for-recursion).])
+fi
+
+if test "$enable_pcregrep_libz" = "yes"; then
+  AC_DEFINE([SUPPORT_LIBZ], [], [
+    Define to allow pcregrep to be linked with libz, so that it is
+    able to handle .gz files.])
+fi
+
+if test "$enable_pcregrep_libbz2" = "yes"; then
+  AC_DEFINE([SUPPORT_LIBBZ2], [], [
+    Define to allow pcregrep to be linked with libbz2, so that it is
+    able to handle .bz2 files.])
+fi
+
+if test $with_pcregrep_bufsize -lt 8192 ; then
+  with_pcregrep_bufsize="8192"
+fi
+
+AC_DEFINE_UNQUOTED([PCREGREP_BUFSIZE], [$with_pcregrep_bufsize], [
+  The value of PCREGREP_BUFSIZE determines the size of buffer used by
+  pcregrep to hold parts of the file it is searching. On systems that
+  support it, "configure" can be used to override the default, which is
+  8192. This is also the minimum value. The actual amount of memory used by
+  pcregrep is three times this number, because it allows for the buffering of
+  "before" and "after" lines.])
+
+if test "$enable_pcretest_libedit" = "yes"; then
+  AC_DEFINE([SUPPORT_LIBEDIT], [], [
+    Define to allow pcretest to be linked with libedit.])
+  LIBREADLINE="$LIBEDIT"
+elif test "$enable_pcretest_libreadline" = "yes"; then
+  AC_DEFINE([SUPPORT_LIBREADLINE], [], [
+    Define to allow pcretest to be linked with libreadline.])
+fi
+
+AC_DEFINE_UNQUOTED([NEWLINE], [$ac_pcre_newline_value], [
+  The value of NEWLINE determines the newline character sequence. On
+  systems that support it, "configure" can be used to override the
+  default, which is 10. The possible values are 10 (LF), 13 (CR),
+  3338 (CRLF), -1 (ANY), or -2 (ANYCRLF).])
+
+if test "$enable_bsr_anycrlf" = "yes"; then
+  AC_DEFINE([BSR_ANYCRLF], [], [
+    By default, the \R escape sequence matches any Unicode line ending
+    character or sequence of characters. If BSR_ANYCRLF is defined, this is
+    changed so that backslash-R matches only CR, LF, or CRLF. The build-
+    time default can be overridden by the user of PCRE at runtime. On
+    systems that support it, "configure" can be used to override the
+    default.])
+fi
+
+AC_DEFINE_UNQUOTED([LINK_SIZE], [$with_link_size], [
+  The value of LINK_SIZE determines the number of bytes used to store
+  links as offsets within the compiled regex. The default is 2, which
+  allows for compiled patterns up to 64K long. This covers the vast
+  majority of cases. However, PCRE can also be compiled to use 3 or 4
+  bytes instead. This allows for longer patterns in extreme cases. On
+  systems that support it, "configure" can be used to override this default.])
+
+AC_DEFINE_UNQUOTED([POSIX_MALLOC_THRESHOLD], [$with_posix_malloc_threshold], [
+  When calling PCRE via the POSIX interface, additional working storage
+  is required for holding the pointers to capturing substrings because
+  PCRE requires three integers per substring, whereas the POSIX
+  interface provides only two. If the number of expected substrings is
+  small, the wrapper function uses space on the stack, because this is
+  faster than using malloc() for each call. The threshold above which
+  the stack is no longer used is defined by POSIX_MALLOC_THRESHOLD. On
+  systems that support it, "configure" can be used to override this
+  default.])
+
+AC_DEFINE_UNQUOTED([MATCH_LIMIT], [$with_match_limit], [
+  The value of MATCH_LIMIT determines the default number of times the
+  internal match() function can be called during a single execution of
+  pcre_exec(). There is a runtime interface for setting a different
+  limit. The limit exists in order to catch runaway regular
+  expressions that take for ever to determine that they do not match.
+  The default is set very large so that it does not accidentally catch
+  legitimate cases. On systems that support it, "configure" can be
+  used to override this default default.])
+
+AC_DEFINE_UNQUOTED([MATCH_LIMIT_RECURSION], [$with_match_limit_recursion], [
+  The above limit applies to all calls of match(), whether or not they
+  increase the recursion depth. In some environments it is desirable
+  to limit the depth of recursive calls of match() more strictly, in
+  order to restrict the maximum amount of stack (or heap, if
+  NO_RECURSE is defined) that is used. The value of
+  MATCH_LIMIT_RECURSION applies only to recursive calls of match(). To
+  have any useful effect, it must be less than the value of
+  MATCH_LIMIT. The default is to use the same value as MATCH_LIMIT.
+  There is a runtime method for setting a different limit. On systems
+  that support it, "configure" can be used to override the default.])
+
+AC_DEFINE([MAX_NAME_SIZE], [32], [
+  This limit is parameterized just in case anybody ever wants to
+  change it. Care must be taken if it is increased, because it guards
+  against integer overflow caused by enormously large patterns.])
+
+AC_DEFINE([MAX_NAME_COUNT], [10000], [
+  This limit is parameterized just in case anybody ever wants to
+  change it. Care must be taken if it is increased, because it guards
+  against integer overflow caused by enormously large patterns.])
+
+AH_VERBATIM([PCRE_EXP_DEFN], [
+/* If you are compiling for a system other than a Unix-like system or
+   Win32, and it needs some magic to be inserted before the definition
+   of a function that is exported by the library, define this macro to
+   contain the relevant magic. If you do not define this macro, it
+   defaults to "extern" for a C compiler and "extern C" for a C++
+   compiler on non-Win32 systems. This macro apears at the start of
+   every exported function that is part of the external API. It does
+   not appear on functions that are "external" in the C sense, but
+   which are internal to the library. */
+#undef PCRE_EXP_DEFN])
+
+if test "$enable_ebcdic" = "yes"; then
+  AC_DEFINE_UNQUOTED([EBCDIC], [], [
+    If you are compiling for a system that uses EBCDIC instead of ASCII
+    character codes, define this macro as 1. On systems that can use
+    "configure", this can be done via --enable-ebcdic. PCRE will then
+    assume that all input strings are in EBCDIC. If you do not define
+    this macro, PCRE will assume input strings are ASCII or UTF-8/16
+    Unicode. It is not possible to build a version of PCRE that
+    supports both EBCDIC and UTF-8/16.])
+fi
+
+# Platform specific issues
+NO_UNDEFINED=
+EXPORT_ALL_SYMBOLS=
+case $host_os in
+  cygwin* | mingw* )
+    if test X"$enable_shared" = Xyes; then
+      NO_UNDEFINED="-no-undefined"
+      EXPORT_ALL_SYMBOLS="-Wl,--export-all-symbols"
+    fi
+    ;;
+esac
+
+# The extra LDFLAGS for each particular library
+# (Note: The libpcre*_version bits are m4 variables, assigned above)
+
+EXTRA_LIBPCRE_LDFLAGS="$EXTRA_LIBPCRE_LDFLAGS \
+                       $NO_UNDEFINED -version-info libpcre_version"
+
+EXTRA_LIBPCRE16_LDFLAGS="$EXTRA_LIBPCRE16_LDFLAGS \
+                       $NO_UNDEFINED -version-info libpcre16_version"
+
+EXTRA_LIBPCREPOSIX_LDFLAGS="$EXTRA_LIBPCREPOSIX_LDFLAGS \
+                            $NO_UNDEFINED -version-info libpcreposix_version"
+
+EXTRA_LIBPCRECPP_LDFLAGS="$EXTRA_LIBPCRECPP_LDFLAGS \
+                          $NO_UNDEFINED -version-info libpcrecpp_version \
+                          $EXPORT_ALL_SYMBOLS"
+
+AC_SUBST(EXTRA_LIBPCRE_LDFLAGS)
+AC_SUBST(EXTRA_LIBPCRE16_LDFLAGS)
+AC_SUBST(EXTRA_LIBPCREPOSIX_LDFLAGS)
+AC_SUBST(EXTRA_LIBPCRECPP_LDFLAGS)
+
+# When we run 'make distcheck', use these arguments. Turning off compiler
+# optimization makes it run faster.
+DISTCHECK_CONFIGURE_FLAGS="CFLAGS='' CXXFLAGS='' --enable-pcre16 --enable-jit --enable-cpp --enable-unicode-properties"
+AC_SUBST(DISTCHECK_CONFIGURE_FLAGS)
+
+# Check that, if --enable-pcregrep-libz or --enable-pcregrep-libbz2 is
+# specified, the relevant library is available.
+
+if test "$enable_pcregrep_libz" = "yes"; then
+  if test "$HAVE_ZLIB_H" != "1"; then
+    echo "** Cannot --enable-pcregrep-libz because zlib.h was not found"
+    exit 1
+  fi
+  if test "$HAVE_LIBZ" != "1"; then
+    echo "** Cannot --enable-pcregrep-libz because libz was not found"
+    exit 1
+  fi
+  LIBZ="-lz"
+fi
+AC_SUBST(LIBZ)
+
+if test "$enable_pcregrep_libbz2" = "yes"; then
+  if test "$HAVE_BZLIB_H" != "1"; then
+    echo "** Cannot --enable-pcregrep-libbz2 because bzlib.h was not found"
+    exit 1
+  fi
+  if test "$HAVE_LIBBZ2" != "1"; then
+    echo "** Cannot --enable-pcregrep-libbz2 because libbz2 was not found"
+    exit 1
+  fi
+  LIBBZ2="-lbz2"
+fi
+AC_SUBST(LIBBZ2)
+
+# Similarly for --enable-pcretest-readline
+
+if test "$enable_pcretest_libedit" = "yes"; then
+  if test "$enable_pcretest_libreadline" = "yes"; then
+    echo "** Cannot use both --enable-pcretest-libedit and --enable-pcretest-readline"
+    exit 1
+  fi
+  if test "$HAVE_EDITLINE_READLINE_H" != "1" -a \
+          "$HAVE_READLINE_READLINE_H" != "1"; then
+    echo "** Cannot --enable-pcretest-libedit because neither editline/readline.h"
+    echo "** nor readline/readline.h was found."
+    exit 1
+  fi
+  if test -z "$LIBEDIT"; then
+    echo "** Cannot --enable-pcretest-libedit because libedit library was not found."
+    exit 1
+  fi
+fi
+
+if test "$enable_pcretest_libreadline" = "yes"; then
+  if test "$HAVE_READLINE_H" != "1"; then
+    echo "** Cannot --enable-pcretest-readline because readline/readline.h was not found."
+    exit 1
+  fi
+  if test "$HAVE_HISTORY_H" != "1"; then
+    echo "** Cannot --enable-pcretest-readline because readline/history.h was not found."
+    exit 1
+  fi
+  if test -z "$LIBREADLINE"; then
+    echo "** Cannot --enable-pcretest-readline because readline library was not found."
+    exit 1
+  fi
+fi
+
+# Produce these files, in addition to config.h.
+AC_CONFIG_FILES(
+	Makefile
+	libpcre.pc
+	libpcre16.pc
+	libpcreposix.pc
+	libpcrecpp.pc
+	pcre-config
+	pcre.h
+	pcre_stringpiece.h
+	pcrecpparg.h
+)
+
+# Make the generated script files executable.
+AC_CONFIG_COMMANDS([script-chmod], [chmod a+x pcre-config])
+
+# Make sure that pcre_chartables.c is removed in case the method for
+# creating it was changed by reconfiguration.
+AC_CONFIG_COMMANDS([delete-old-chartables], [rm -f pcre_chartables.c])
+
+AC_OUTPUT
+
+# Print out a nice little message after configure is run displaying your
+# chosen options.
+
+cat <<EOF
+
+$PACKAGE-$VERSION configuration summary:
+
+    Install prefix .................. : ${prefix}
+    C preprocessor .................. : ${CPP}
+    C compiler ...................... : ${CC}
+    C++ preprocessor ................ : ${CXXCPP}
+    C++ compiler .................... : ${CXX}
+    Linker .......................... : ${LD}
+    C preprocessor flags ............ : ${CPPFLAGS}
+    C compiler flags ................ : ${CFLAGS}
+    C++ compiler flags .............. : ${CXXFLAGS}
+    Linker flags .................... : ${LDFLAGS}
+    Extra libraries ................. : ${LIBS}
+
+    Build 8 bit pcre library ........ : ${enable_pcre8}
+    Build 16 bit pcre library ....... : ${enable_pcre16}
+    Build C++ library ............... : ${enable_cpp}
+    Enable JIT compiling support .... : ${enable_jit}
+    Enable UTF-8/16 support ......... : ${enable_utf}
+    Unicode properties .............. : ${enable_unicode_properties}
+    Newline char/sequence ........... : ${enable_newline}
+    \R matches only ANYCRLF ......... : ${enable_bsr_anycrlf}
+    EBCDIC coding ................... : ${enable_ebcdic}
+    Rebuild char tables ............. : ${enable_rebuild_chartables}
+    Use stack recursion ............. : ${enable_stack_for_recursion}
+    POSIX mem threshold ............. : ${with_posix_malloc_threshold}
+    Internal link size .............. : ${with_link_size}
+    Match limit ..................... : ${with_match_limit}
+    Match limit recursion ........... : ${with_match_limit_recursion}
+    Build shared libs ............... : ${enable_shared}
+    Build static libs ............... : ${enable_static}
+    Use JIT in pcregrep ............. : ${enable_pcregrep_jit}
+    Buffer size for pcregrep ........ : ${with_pcregrep_bufsize}
+    Link pcregrep with libz ......... : ${enable_pcregrep_libz}
+    Link pcregrep with libbz2 ....... : ${enable_pcregrep_libbz2}
+    Link pcretest with libedit ...... : ${enable_pcretest_libedit}
+    Link pcretest with libreadline .. : ${enable_pcretest_libreadline}
+
+EOF
+
+dnl end configure.ac
diff --git a/8.31/depcomp b/8.31/depcomp
new file mode 100644
index 0000000..df8eea7
--- /dev/null
+++ b/8.31/depcomp
@@ -0,0 +1,630 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2009-04-28.21; # UTC
+
+# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
+# Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+  '')
+     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+  depmode     Dependency tracking mode.
+  source      Source file read by `PROGRAMS ARGS'.
+  object      Object file output by `PROGRAMS ARGS'.
+  DEPDIR      directory where to store dependencies.
+  depfile     Dependency file to output.
+  tmpdepfile  Temporary file to use when outputing dependencies.
+  libtool     Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "depcomp $scriptversion"
+    exit $?
+    ;;
+esac
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+   # This is just like dashmstdout with a different argument.
+   dashmflag=-xM
+   depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+   # This is just like msvisualcpp but w/o cygpath translation.
+   # Just convert the backslash-escaped backslashes to single forward
+   # slashes to satisfy depend.m4
+   cygpath_u="sed s,\\\\\\\\,/,g"
+   depmode=msvisualcpp
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am.  Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+  for arg
+  do
+    case $arg in
+    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+    *)  set fnord "$@" "$arg" ;;
+    esac
+    shift # fnord
+    shift # $arg
+  done
+  "$@"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+## The second -e expression handles DOS-style file names with drive letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+  tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'.  On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like `#:fec' to the end of the
+    # dependency line.
+    tr ' ' '
+' < "$tmpdepfile" \
+    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+    tr '
+' ' ' >> "$depfile"
+    echo >> "$depfile"
+
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' '
+' < "$tmpdepfile" \
+   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+   >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  In older versions, this file always lives in the
+  # current directory.  Also, the AIX compiler puts `$object:' at the
+  # start of each line; $object doesn't have directory information.
+  # Version 6 uses the directory in both cases.
+  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  test "x$dir" = "x$object" && dir=
+  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$base.u
+    tmpdepfile3=$dir.libs/$base.u
+    "$@" -Wc,-M
+  else
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$dir$base.u
+    tmpdepfile3=$dir$base.u
+    "$@" -M
+  fi
+  stat=$?
+
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form `foo.o: dependent.h'.
+    # Do two passes, one to just change these to
+    # `$object: dependent.h' and one to simply `dependent.h:'.
+    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+    # That's a tab and a space in the [].
+    sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+  else
+    # The sourcefile does not contain any dependencies, so just
+    # store a dummy comment line, to avoid errors with the Makefile
+    # "include basename.Plo" scheme.
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+icc)
+  # Intel's C compiler understands `-MD -MF file'.  However on
+  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+  # ICC 7.0 will fill foo.d with something like
+  #    foo.o: sub/foo.c
+  #    foo.o: sub/foo.h
+  # which is wrong.  We want:
+  #    sub/foo.o: sub/foo.c
+  #    sub/foo.o: sub/foo.h
+  #    sub/foo.c:
+  #    sub/foo.h:
+  # ICC 7.1 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using \ :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
+    sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp2)
+  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+  # compilers, which have integrated preprocessors.  The correct option
+  # to use with these is +Maked; it writes dependencies to a file named
+  # 'foo.d', which lands next to the object file, wherever that
+  # happens to be.
+  # Much of this is similar to the tru64 case; see comments there.
+  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+  test "x$dir" = "x$object" && dir=
+  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir.libs/$base.d
+    "$@" -Wc,+Maked
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    "$@" +Maked
+  fi
+  stat=$?
+  if test $stat -eq 0; then :
+  else
+     rm -f "$tmpdepfile1" "$tmpdepfile2"
+     exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
+    # Add `dependent.h:' lines.
+    sed -ne '2,${
+	       s/^ *//
+	       s/ \\*$//
+	       s/$/:/
+	       p
+	     }' "$tmpdepfile" >> "$depfile"
+  else
+    echo "#dummy" > "$depfile"
+  fi
+  rm -f "$tmpdepfile" "$tmpdepfile2"
+  ;;
+
+tru64)
+   # The Tru64 compiler uses -MD to generate dependencies as a side
+   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+   # dependencies in `foo.d' instead, so we check for that too.
+   # Subdirectories are respected.
+   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+   test "x$dir" = "x$object" && dir=
+   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+
+   if test "$libtool" = yes; then
+      # With Tru64 cc, shared objects can also be used to make a
+      # static library.  This mechanism is used in libtool 1.4 series to
+      # handle both shared and static libraries in a single compilation.
+      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
+      #
+      # With libtool 1.5 this exception was removed, and libtool now
+      # generates 2 separate objects for the 2 libraries.  These two
+      # compilations output dependencies in $dir.libs/$base.o.d and
+      # in $dir$base.o.d.  We have to check for both files, because
+      # one of the two compilations can be disabled.  We should prefer
+      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+      # automatically cleaned when .libs/ is deleted, while ignoring
+      # the former would cause a distcleancheck panic.
+      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
+      tmpdepfile2=$dir$base.o.d          # libtool 1.5
+      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
+      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
+      "$@" -Wc,-MD
+   else
+      tmpdepfile1=$dir$base.o.d
+      tmpdepfile2=$dir$base.d
+      tmpdepfile3=$dir$base.d
+      tmpdepfile4=$dir$base.d
+      "$@" -MD
+   fi
+
+   stat=$?
+   if test $stat -eq 0; then :
+   else
+      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+      exit $stat
+   fi
+
+   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+   do
+     test -f "$tmpdepfile" && break
+   done
+   if test -f "$tmpdepfile"; then
+      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+      # That's a tab and a space in the [].
+      sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+   else
+      echo "#dummy" > "$depfile"
+   fi
+   rm -f "$tmpdepfile"
+   ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove `-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for `:'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+  "$@" $dashmflag |
+    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no eat=no
+  for arg
+  do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    if test $eat = yes; then
+      eat=no
+      continue
+    fi
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -arch)
+      eat=yes ;;
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix=`echo "$object" | sed 's/^.*\././'`
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  sed '1,2d' "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove `-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E |
+    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+    sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+	set fnord "$@"
+	shift
+	shift
+	;;
+    *)
+	set fnord "$@" "$arg"
+	shift
+	shift
+	;;
+    esac
+  done
+  "$@" -E 2>/dev/null |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
+  echo "	" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvcmsys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/8.31/doc/html/index.html b/8.31/doc/html/index.html
new file mode 100644
index 0000000..739f7a5
--- /dev/null
+++ b/8.31/doc/html/index.html
@@ -0,0 +1,173 @@
+<html>
+<!-- This is a manually maintained file that is the root of the HTML version of
+     the PCRE documentation. When the HTML documents are built from the man
+     page versions, the entire doc/html directory is emptied, this file is then
+     copied into doc/html/index.html, and the remaining files therein are
+     created by the 132html script.
+-->
+<head>
+<title>PCRE specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>Perl-compatible Regular Expressions (PCRE)</h1>
+<p>
+The HTML documentation for PCRE comprises the following pages:
+</p>
+
+<table>
+<tr><td><a href="pcre.html">pcre</a></td>
+    <td>&nbsp;&nbsp;Introductory page</td></tr>
+
+<tr><td><a href="pcre16.html">pcre16</a></td>
+    <td>&nbsp;&nbsp;Discussion of the 16-bit PCRE library</td></tr>
+
+<tr><td><a href="pcre-config.html">pcre-config</a></td>
+    <td>&nbsp;&nbsp;Information about the installation configuration</td></tr>
+
+<tr><td><a href="pcreapi.html">pcreapi</a></td>
+    <td>&nbsp;&nbsp;PCRE's native API</td></tr>
+
+<tr><td><a href="pcrebuild.html">pcrebuild</a></td>
+    <td>&nbsp;&nbsp;Options for building PCRE</td></tr>
+
+<tr><td><a href="pcrecallout.html">pcrecallout</a></td>
+    <td>&nbsp;&nbsp;The <i>callout</i> facility</td></tr>
+
+<tr><td><a href="pcrecompat.html">pcrecompat</a></td>
+    <td>&nbsp;&nbsp;Compability with Perl</td></tr>
+
+<tr><td><a href="pcrecpp.html">pcrecpp</a></td>
+    <td>&nbsp;&nbsp;The C++ wrapper for the PCRE library</td></tr>
+
+<tr><td><a href="pcredemo.html">pcredemo</a></td>
+    <td>&nbsp;&nbsp;A demonstration C program that uses the PCRE library</td></tr>
+
+<tr><td><a href="pcregrep.html">pcregrep</a></td>
+    <td>&nbsp;&nbsp;The <b>pcregrep</b> command</td></tr>
+
+<tr><td><a href="pcrejit.html">pcrejit</a></td>
+    <td>&nbsp;&nbsp;Discussion of the just-in-time optimization support</td></tr>
+
+<tr><td><a href="pcrelimits.html">pcrelimits</a></td>
+    <td>&nbsp;&nbsp;Details of size and other limits</td></tr>
+
+<tr><td><a href="pcrematching.html">pcrematching</a></td>
+    <td>&nbsp;&nbsp;Discussion of the two matching algorithms</td></tr>
+
+<tr><td><a href="pcrepartial.html">pcrepartial</a></td>
+    <td>&nbsp;&nbsp;Using PCRE for partial matching</td></tr>
+
+<tr><td><a href="pcrepattern.html">pcrepattern</a></td>
+    <td>&nbsp;&nbsp;Specification of the regular expressions supported by PCRE</td></tr>
+
+<tr><td><a href="pcreperform.html">pcreperform</a></td>
+    <td>&nbsp;&nbsp;Some comments on performance</td></tr>
+
+<tr><td><a href="pcreposix.html">pcreposix</a></td>
+    <td>&nbsp;&nbsp;The POSIX API to the PCRE library</td></tr>
+
+<tr><td><a href="pcreprecompile.html">pcreprecompile</a></td>
+    <td>&nbsp;&nbsp;How to save and re-use compiled patterns</td></tr>
+
+<tr><td><a href="pcresample.html">pcresample</a></td>
+    <td>&nbsp;&nbsp;Discussion of the pcredemo program</td></tr>
+
+<tr><td><a href="pcrestack.html">pcrestack</a></td>
+    <td>&nbsp;&nbsp;Discussion of PCRE's stack usage</td></tr>
+
+<tr><td><a href="pcresyntax.html">pcresyntax</a></td>
+    <td>&nbsp;&nbsp;Syntax quick-reference summary</td></tr>
+
+<tr><td><a href="pcretest.html">pcretest</a></td>
+    <td>&nbsp;&nbsp;The <b>pcretest</b> command for testing PCRE</td></tr>
+
+<tr><td><a href="pcreunicode.html">pcreunicode</a></td>
+    <td>&nbsp;&nbsp;Discussion of Unicode and UTF-8/UTF-16 support</td></tr>
+</table>
+
+<p>
+There are also individual pages that summarize the interface for each function
+in the library. There is a single page for each pair of 8-bit/16-bit functions.
+</p>
+
+<table>
+
+<tr><td><a href="pcre_assign_jit_stack.html">pcre_assign_jit_stack</a></td>
+    <td>&nbsp;&nbsp;Assign stack for JIT matching</td></tr>
+
+<tr><td><a href="pcre_compile.html">pcre_compile</a></td>
+    <td>&nbsp;&nbsp;Compile a regular expression</td></tr>
+
+<tr><td><a href="pcre_compile2.html">pcre_compile2</a></td>
+    <td>&nbsp;&nbsp;Compile a regular expression (alternate interface)</td></tr>
+
+<tr><td><a href="pcre_config.html">pcre_config</a></td>
+    <td>&nbsp;&nbsp;Show build-time configuration options</td></tr>
+
+<tr><td><a href="pcre_copy_named_substring.html">pcre_copy_named_substring</a></td>
+    <td>&nbsp;&nbsp;Extract named substring into given buffer</td></tr>
+
+<tr><td><a href="pcre_copy_substring.html">pcre_copy_substring</a></td>
+    <td>&nbsp;&nbsp;Extract numbered substring into given buffer</td></tr>
+
+<tr><td><a href="pcre_dfa_exec.html">pcre_dfa_exec</a></td>
+    <td>&nbsp;&nbsp;Match a compiled pattern to a subject string
+    (DFA algorithm; <i>not</i> Perl compatible)</td></tr>
+
+<tr><td><a href="pcre_free_study.html">pcre_free_study</a></td>
+    <td>&nbsp;&nbsp;Free study data</td></tr>
+
+<tr><td><a href="pcre_exec.html">pcre_exec</a></td>
+    <td>&nbsp;&nbsp;Match a compiled pattern to a subject string
+    (Perl compatible)</td></tr>
+
+<tr><td><a href="pcre_free_substring.html">pcre_free_substring</a></td>
+    <td>&nbsp;&nbsp;Free extracted substring</td></tr>
+
+<tr><td><a href="pcre_free_substring_list.html">pcre_free_substring_list</a></td>
+    <td>&nbsp;&nbsp;Free list of extracted substrings</td></tr>
+
+<tr><td><a href="pcre_fullinfo.html">pcre_fullinfo</a></td>
+    <td>&nbsp;&nbsp;Extract information about a pattern</td></tr>
+
+<tr><td><a href="pcre_get_named_substring.html">pcre_get_named_substring</a></td>
+    <td>&nbsp;&nbsp;Extract named substring into new memory</td></tr>
+
+<tr><td><a href="pcre_get_stringnumber.html">pcre_get_stringnumber</a></td>
+    <td>&nbsp;&nbsp;Convert captured string name to number</td></tr>
+
+<tr><td><a href="pcre_get_substring.html">pcre_get_substring</a></td>
+    <td>&nbsp;&nbsp;Extract numbered substring into new memory</td></tr>
+
+<tr><td><a href="pcre_get_substring_list.html">pcre_get_substring_list</a></td>
+    <td>&nbsp;&nbsp;Extract all substrings into new memory</td></tr>
+
+<tr><td><a href="pcre_info.html">pcre_info</a></td>
+    <td>&nbsp;&nbsp;Obsolete information extraction function</td></tr>
+
+<tr><td><a href="pcre_jit_stack_alloc.html">pcre_jit_stack_alloc</a></td>
+    <td>&nbsp;&nbsp;Create a stack for JIT matching</td></tr>
+
+<tr><td><a href="pcre_jit_stack_free.html">pcre_jit_stack_free</a></td>
+    <td>&nbsp;&nbsp;Free a JIT matching stack</td></tr>
+
+<tr><td><a href="pcre_maketables.html">pcre_maketables</a></td>
+    <td>&nbsp;&nbsp;Build character tables in current locale</td></tr>
+
+<tr><td><a href="pcre_pattern_to_host_byte_order.html">pcre_pattern_to_host_byte_order</a></td>
+    <td>&nbsp;&nbsp;Convert compiled pattern to host byte order if necessary</td></tr>
+
+<tr><td><a href="pcre_refcount.html">pcre_refcount</a></td>
+    <td>&nbsp;&nbsp;Maintain reference count in compiled pattern</td></tr>
+
+<tr><td><a href="pcre_study.html">pcre_study</a></td>
+    <td>&nbsp;&nbsp;Study a compiled pattern</td></tr>
+
+<tr><td><a href="pcre_utf16_to_host_byte_order.html">pcre_utf16_to_host_byte_order</a></td>
+    <td>&nbsp;&nbsp;Convert UTF-16 string to host byte order if necessary</td></tr>
+
+<tr><td><a href="pcre_version.html">pcre_version</a></td>
+    <td>&nbsp;&nbsp;Return PCRE version and release date</td></tr>
+</table>
+
+</html>
diff --git a/8.31/doc/html/pcre-config.html b/8.31/doc/html/pcre-config.html
new file mode 100644
index 0000000..87c874d
--- /dev/null
+++ b/8.31/doc/html/pcre-config.html
@@ -0,0 +1,103 @@
+<html>
+<head>
+<title>pcre-config specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre-config man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">SYNOPSIS</a>
+<li><a name="TOC2" href="#SEC2">DESCRIPTION</a>
+<li><a name="TOC3" href="#SEC3">OPTIONS</a>
+<li><a name="TOC4" href="#SEC4">SEE ALSO</a>
+<li><a name="TOC5" href="#SEC5">AUTHOR</a>
+<li><a name="TOC6" href="#SEC6">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">SYNOPSIS</a><br>
+<P>
+<b>pcre-config  [--prefix] [--exec-prefix] [--version] [--libs]</b>
+<b>[--libs16] [--libs-cpp] [--libs-posix] [--cflags]</b>
+<b>[--cflags-posix]</b>
+</P>
+<br><a name="SEC2" href="#TOC1">DESCRIPTION</a><br>
+<P>
+<b>pcre-config</b> returns the configuration of the installed PCRE
+libraries and the options required to compile a program to use them. Some of
+the options apply only to the 8-bit or 16-bit libraries, respectively, and are
+not available if only one of those libraries has been built. If an unavailable
+option is encountered, the "usage" information is output.
+</P>
+<br><a name="SEC3" href="#TOC1">OPTIONS</a><br>
+<P>
+<b>--prefix</b>
+Writes the directory prefix used in the PCRE installation for architecture
+independent files (<i>/usr</i> on many systems, <i>/usr/local</i> on some
+systems) to the standard output.
+</P>
+<P>
+<b>--exec-prefix</b>
+Writes the directory prefix used in the PCRE installation for architecture
+dependent files (normally the same as <b>--prefix</b>) to the standard output.
+</P>
+<P>
+<b>--version</b>
+Writes the version number of the installed PCRE libraries to the standard
+output.
+</P>
+<P>
+<b>--libs</b>
+Writes to the standard output the command line options required to link
+with the 8-bit PCRE library (<b>-lpcre</b> on many systems).
+</P>
+<P>
+<b>--libs16</b>
+Writes to the standard output the command line options required to link
+with the 16-bit PCRE library (<b>-lpcre16</b> on many systems).
+</P>
+<P>
+<b>--libs-cpp</b>
+Writes to the standard output the command line options required to link with
+PCRE's C++ wrapper library (<b>-lpcrecpp</b> <b>-lpcre</b> on many
+systems).
+</P>
+<P>
+<b>--libs-posix</b>
+Writes to the standard output the command line options required to link with
+PCRE's POSIX API wrapper library (<b>-lpcreposix</b> <b>-lpcre</b> on many
+systems).
+</P>
+<P>
+<b>--cflags</b>
+Writes to the standard output the command line options required to compile
+files that use PCRE (this may include some <b>-I</b> options, but is blank on
+many systems).
+</P>
+<P>
+<b>--cflags-posix</b>
+Writes to the standard output the command line options required to compile
+files that use PCRE's POSIX API wrapper library (this may include some <b>-I</b>
+options, but is blank on many systems).
+</P>
+<br><a name="SEC4" href="#TOC1">SEE ALSO</a><br>
+<P>
+<b>pcre(3)</b>
+</P>
+<br><a name="SEC5" href="#TOC1">AUTHOR</a><br>
+<P>
+This manual page was originally written by Mark Baker for the Debian GNU/Linux
+system. It has been subsequently revised as a generic PCRE man page.
+</P>
+<br><a name="SEC6" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 01 January 2012
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre.html b/8.31/doc/html/pcre.html
new file mode 100644
index 0000000..ff5202f
--- /dev/null
+++ b/8.31/doc/html/pcre.html
@@ -0,0 +1,160 @@
+<html>
+<head>
+<title>pcre specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">INTRODUCTION</a>
+<li><a name="TOC2" href="#SEC2">USER DOCUMENTATION</a>
+<li><a name="TOC3" href="#SEC3">AUTHOR</a>
+<li><a name="TOC4" href="#SEC4">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">INTRODUCTION</a><br>
+<P>
+The PCRE library is a set of functions that implement regular expression
+pattern matching using the same syntax and semantics as Perl, with just a few
+differences. Some features that appeared in Python and PCRE before they
+appeared in Perl are also available using the Python syntax, there is some
+support for one or two .NET and Oniguruma syntax items, and there is an option
+for requesting some minor changes that give better JavaScript compatibility.
+</P>
+<P>
+Starting with release 8.30, it is possible to compile two separate PCRE
+libraries: the original, which supports 8-bit character strings (including
+UTF-8 strings), and a second library that supports 16-bit character strings
+(including UTF-16 strings). The build process allows either one or both to be
+built. The majority of the work to make this possible was done by Zoltan
+Herczeg.
+</P>
+<P>
+The two libraries contain identical sets of functions, except that the names in
+the 16-bit library start with <b>pcre16_</b> instead of <b>pcre_</b>. To avoid
+over-complication and reduce the documentation maintenance load, most of the
+documentation describes the 8-bit library, with the differences for the 16-bit
+library described separately in the
+<a href="pcre16.html"><b>pcre16</b></a>
+page. References to functions or structures of the form <i>pcre[16]_xxx</i>
+should be read as meaning "<i>pcre_xxx</i> when using the 8-bit library and
+<i>pcre16_xxx</i> when using the 16-bit library".
+</P>
+<P>
+The current implementation of PCRE corresponds approximately with Perl 5.12,
+including support for UTF-8/16 encoded strings and Unicode general category
+properties. However, UTF-8/16 and Unicode support has to be explicitly enabled;
+it is not the default. The Unicode tables correspond to Unicode release 6.0.0.
+</P>
+<P>
+In addition to the Perl-compatible matching function, PCRE contains an
+alternative function that matches the same compiled patterns in a different
+way. In certain circumstances, the alternative function has some advantages.
+For a discussion of the two matching algorithms, see the
+<a href="pcrematching.html"><b>pcrematching</b></a>
+page.
+</P>
+<P>
+PCRE is written in C and released as a C library. A number of people have
+written wrappers and interfaces of various kinds. In particular, Google Inc.
+have provided a comprehensive C++ wrapper for the 8-bit library. This is now
+included as part of the PCRE distribution. The
+<a href="pcrecpp.html"><b>pcrecpp</b></a>
+page has details of this interface. Other people's contributions can be found
+in the <i>Contrib</i> directory at the primary FTP site, which is:
+<a href="ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre">ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre</a>
+</P>
+<P>
+Details of exactly which Perl regular expression features are and are not
+supported by PCRE are given in separate documents. See the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+and
+<a href="pcrecompat.html"><b>pcrecompat</b></a>
+pages. There is a syntax summary in the
+<a href="pcresyntax.html"><b>pcresyntax</b></a>
+page.
+</P>
+<P>
+Some features of PCRE can be included, excluded, or changed when the library is
+built. The
+<a href="pcre_config.html"><b>pcre_config()</b></a>
+function makes it possible for a client to discover which features are
+available. The features themselves are described in the
+<a href="pcrebuild.html"><b>pcrebuild</b></a>
+page. Documentation about building PCRE for various operating systems can be
+found in the <b>README</b> and <b>NON-UNIX-USE</b> files in the source
+distribution.
+</P>
+<P>
+The libraries contains a number of undocumented internal functions and data
+tables that are used by more than one of the exported external functions, but
+which are not intended for use by external callers. Their names all begin with
+"_pcre_" or "_pcre16_", which hopefully will not provoke any name clashes. In
+some environments, it is possible to control which external symbols are
+exported when a shared library is built, and in these cases the undocumented
+symbols are not exported.
+</P>
+<br><a name="SEC2" href="#TOC1">USER DOCUMENTATION</a><br>
+<P>
+The user documentation for PCRE comprises a number of different sections. In
+the "man" format, each of these is a separate "man page". In the HTML format,
+each is a separate page, linked from the index page. In the plain text format,
+all the sections, except the <b>pcredemo</b> section, are concatenated, for ease
+of searching. The sections are as follows:
+<pre>
+  pcre              this document
+  pcre16            details of the 16-bit library
+  pcre-config       show PCRE installation configuration information
+  pcreapi           details of PCRE's native C API
+  pcrebuild         options for building PCRE
+  pcrecallout       details of the callout feature
+  pcrecompat        discussion of Perl compatibility
+  pcrecpp           details of the C++ wrapper for the 8-bit library
+  pcredemo          a demonstration C program that uses PCRE
+  pcregrep          description of the <b>pcregrep</b> command (8-bit only)
+  pcrejit           discussion of the just-in-time optimization support
+  pcrelimits        details of size and other limits
+  pcrematching      discussion of the two matching algorithms
+  pcrepartial       details of the partial matching facility
+  pcrepattern       syntax and semantics of supported regular expressions
+  pcreperform       discussion of performance issues
+  pcreposix         the POSIX-compatible C API for the 8-bit library
+  pcreprecompile    details of saving and re-using precompiled patterns
+  pcresample        discussion of the pcredemo program
+  pcrestack         discussion of stack usage
+  pcresyntax        quick syntax reference
+  pcretest          description of the <b>pcretest</b> testing command
+  pcreunicode       discussion of Unicode and UTF-8/16 support
+</pre>
+In addition, in the "man" and HTML formats, there is a short page for each
+8-bit C library function, listing its arguments and results.
+</P>
+<br><a name="SEC3" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<P>
+Putting an actual email address here seems to have been a spam magnet, so I've
+taken it away. If you want to email me, use my two initials, followed by the
+two digits 10, at the domain cam.ac.uk.
+</P>
+<br><a name="SEC4" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 10 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre16.html b/8.31/doc/html/pcre16.html
new file mode 100644
index 0000000..c996eeb
--- /dev/null
+++ b/8.31/doc/html/pcre16.html
@@ -0,0 +1,382 @@
+<html>
+<head>
+<title>pcre16 specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre16 man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PCRE 16-BIT API BASIC FUNCTIONS</a>
+<li><a name="TOC2" href="#SEC2">PCRE 16-BIT API STRING EXTRACTION FUNCTIONS</a>
+<li><a name="TOC3" href="#SEC3">PCRE 16-BIT API AUXILIARY FUNCTIONS</a>
+<li><a name="TOC4" href="#SEC4">PCRE 16-BIT API INDIRECTED FUNCTIONS</a>
+<li><a name="TOC5" href="#SEC5">PCRE 16-BIT API 16-BIT-ONLY FUNCTION</a>
+<li><a name="TOC6" href="#SEC6">THE PCRE 16-BIT LIBRARY</a>
+<li><a name="TOC7" href="#SEC7">THE HEADER FILE</a>
+<li><a name="TOC8" href="#SEC8">THE LIBRARY NAME</a>
+<li><a name="TOC9" href="#SEC9">STRING TYPES</a>
+<li><a name="TOC10" href="#SEC10">STRUCTURE TYPES</a>
+<li><a name="TOC11" href="#SEC11">16-BIT FUNCTIONS</a>
+<li><a name="TOC12" href="#SEC12">SUBJECT STRING OFFSETS</a>
+<li><a name="TOC13" href="#SEC13">NAMED SUBPATTERNS</a>
+<li><a name="TOC14" href="#SEC14">OPTION NAMES</a>
+<li><a name="TOC15" href="#SEC15">CHARACTER CODES</a>
+<li><a name="TOC16" href="#SEC16">ERROR NAMES</a>
+<li><a name="TOC17" href="#SEC17">ERROR TEXTS</a>
+<li><a name="TOC18" href="#SEC18">CALLOUTS</a>
+<li><a name="TOC19" href="#SEC19">TESTING</a>
+<li><a name="TOC20" href="#SEC20">NOT SUPPORTED IN 16-BIT MODE</a>
+<li><a name="TOC21" href="#SEC21">AUTHOR</a>
+<li><a name="TOC22" href="#SEC22">REVISION</a>
+</ul>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<br><a name="SEC1" href="#TOC1">PCRE 16-BIT API BASIC FUNCTIONS</a><br>
+<P>
+<b>pcre16 *pcre16_compile(PCRE_SPTR16 <i>pattern</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<P>
+<b>pcre16 *pcre16_compile2(PCRE_SPTR16 <i>pattern</i>, int <i>options</i>,</b>
+<b>int *<i>errorcodeptr</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<P>
+<b>pcre16_extra *pcre16_study(const pcre16 *<i>code</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>);</b>
+</P>
+<P>
+<b>void pcre16_free_study(pcre16_extra *<i>extra</i>);</b>
+</P>
+<P>
+<b>int pcre16_exec(const pcre16 *<i>code</i>, const pcre16_extra *<i>extra</i>,</b>
+<b>PCRE_SPTR16 <i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>);</b>
+</P>
+<P>
+<b>int pcre16_dfa_exec(const pcre16 *<i>code</i>, const pcre16_extra *<i>extra</i>,</b>
+<b>PCRE_SPTR16 <i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>,</b>
+<b>int *<i>workspace</i>, int <i>wscount</i>);</b>
+</P>
+<br><a name="SEC2" href="#TOC1">PCRE 16-BIT API STRING EXTRACTION FUNCTIONS</a><br>
+<P>
+<b>int pcre16_copy_named_substring(const pcre16 *<i>code</i>,</b>
+<b>PCRE_SPTR16 <i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, PCRE_SPTR16 <i>stringname</i>,</b>
+<b>PCRE_UCHAR16 *<i>buffer</i>, int <i>buffersize</i>);</b>
+</P>
+<P>
+<b>int pcre16_copy_substring(PCRE_SPTR16 <i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>, PCRE_UCHAR16 *<i>buffer</i>,</b>
+<b>int <i>buffersize</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_named_substring(const pcre16 *<i>code</i>,</b>
+<b>PCRE_SPTR16 <i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, PCRE_SPTR16 <i>stringname</i>,</b>
+<b>PCRE_SPTR16 *<i>stringptr</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_stringnumber(const pcre16 *<i>code</i>,</b>
+<b>PCRE_SPTR16 <i>name</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_stringtable_entries(const pcre16 *<i>code</i>,</b>
+<b>PCRE_SPTR16 <i>name</i>, PCRE_UCHAR16 **<i>first</i>, PCRE_UCHAR16 **<i>last</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_substring(PCRE_SPTR16 <i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>,</b>
+<b>PCRE_SPTR16 *<i>stringptr</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_substring_list(PCRE_SPTR16 <i>subject</i>,</b>
+<b>int *<i>ovector</i>, int <i>stringcount</i>, PCRE_SPTR16 **<i>listptr</i>);</b>
+</P>
+<P>
+<b>void pcre16_free_substring(PCRE_SPTR16 <i>stringptr</i>);</b>
+</P>
+<P>
+<b>void pcre16_free_substring_list(PCRE_SPTR16 *<i>stringptr</i>);</b>
+</P>
+<br><a name="SEC3" href="#TOC1">PCRE 16-BIT API AUXILIARY FUNCTIONS</a><br>
+<P>
+<b>pcre16_jit_stack *pcre16_jit_stack_alloc(int <i>startsize</i>, int <i>maxsize</i>);</b>
+</P>
+<P>
+<b>void pcre16_jit_stack_free(pcre16_jit_stack *<i>stack</i>);</b>
+</P>
+<P>
+<b>void pcre16_assign_jit_stack(pcre16_extra *<i>extra</i>,</b>
+<b>pcre16_jit_callback <i>callback</i>, void *<i>data</i>);</b>
+</P>
+<P>
+<b>const unsigned char *pcre16_maketables(void);</b>
+</P>
+<P>
+<b>int pcre16_fullinfo(const pcre16 *<i>code</i>, const pcre16_extra *<i>extra</i>,</b>
+<b>int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<P>
+<b>int pcre16_refcount(pcre16 *<i>code</i>, int <i>adjust</i>);</b>
+</P>
+<P>
+<b>int pcre16_config(int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<P>
+<b>const char *pcre16_version(void);</b>
+</P>
+<P>
+<b>int pcre16_pattern_to_host_byte_order(pcre16 *<i>code</i>,</b>
+<b>pcre16_extra *<i>extra</i>, const unsigned char *<i>tables</i>);</b>
+</P>
+<br><a name="SEC4" href="#TOC1">PCRE 16-BIT API INDIRECTED FUNCTIONS</a><br>
+<P>
+<b>void *(*pcre16_malloc)(size_t);</b>
+</P>
+<P>
+<b>void (*pcre16_free)(void *);</b>
+</P>
+<P>
+<b>void *(*pcre16_stack_malloc)(size_t);</b>
+</P>
+<P>
+<b>void (*pcre16_stack_free)(void *);</b>
+</P>
+<P>
+<b>int (*pcre16_callout)(pcre16_callout_block *);</b>
+</P>
+<br><a name="SEC5" href="#TOC1">PCRE 16-BIT API 16-BIT-ONLY FUNCTION</a><br>
+<P>
+<b>int pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *<i>output</i>,</b>
+<b>PCRE_SPTR16 <i>input</i>, int <i>length</i>, int *<i>byte_order</i>,</b>
+<b>int <i>keep_boms</i>);</b>
+</P>
+<br><a name="SEC6" href="#TOC1">THE PCRE 16-BIT LIBRARY</a><br>
+<P>
+Starting with release 8.30, it is possible to compile a PCRE library that
+supports 16-bit character strings, including UTF-16 strings, as well as or
+instead of the original 8-bit library. The majority of the work to make this
+possible was done by Zoltan Herczeg. The two libraries contain identical sets
+of functions, used in exactly the same way. Only the names of the functions and
+the data types of their arguments and results are different. To avoid
+over-complication and reduce the documentation maintenance load, most of the
+PCRE documentation describes the 8-bit library, with only occasional references
+to the 16-bit library. This page describes what is different when you use the
+16-bit library.
+</P>
+<P>
+WARNING: A single application can be linked with both libraries, but you must
+take care when processing any particular pattern to use functions from just one
+library. For example, if you want to study a pattern that was compiled with
+<b>pcre16_compile()</b>, you must do so with <b>pcre16_study()</b>, not
+<b>pcre_study()</b>, and you must free the study data with
+<b>pcre16_free_study()</b>.
+</P>
+<br><a name="SEC7" href="#TOC1">THE HEADER FILE</a><br>
+<P>
+There is only one header file, <b>pcre.h</b>. It contains prototypes for all the
+functions in both libraries, as well as definitions of flags, structures, error
+codes, etc.
+</P>
+<br><a name="SEC8" href="#TOC1">THE LIBRARY NAME</a><br>
+<P>
+In Unix-like systems, the 16-bit library is called <b>libpcre16</b>, and can
+normally be accesss by adding <b>-lpcre16</b> to the command for linking an
+application that uses PCRE.
+</P>
+<br><a name="SEC9" href="#TOC1">STRING TYPES</a><br>
+<P>
+In the 8-bit library, strings are passed to PCRE library functions as vectors
+of bytes with the C type "char *". In the 16-bit library, strings are passed as
+vectors of unsigned 16-bit quantities. The macro PCRE_UCHAR16 specifies an
+appropriate data type, and PCRE_SPTR16 is defined as "const PCRE_UCHAR16 *". In
+very many environments, "short int" is a 16-bit data type. When PCRE is built,
+it defines PCRE_UCHAR16 as "short int", but checks that it really is a 16-bit
+data type. If it is not, the build fails with an error message telling the
+maintainer to modify the definition appropriately.
+</P>
+<br><a name="SEC10" href="#TOC1">STRUCTURE TYPES</a><br>
+<P>
+The types of the opaque structures that are used for compiled 16-bit patterns
+and JIT stacks are <b>pcre16</b> and <b>pcre16_jit_stack</b> respectively. The
+type of the user-accessible structure that is returned by <b>pcre16_study()</b>
+is <b>pcre16_extra</b>, and the type of the structure that is used for passing
+data to a callout function is <b>pcre16_callout_block</b>. These structures
+contain the same fields, with the same names, as their 8-bit counterparts. The
+only difference is that pointers to character strings are 16-bit instead of
+8-bit types.
+</P>
+<br><a name="SEC11" href="#TOC1">16-BIT FUNCTIONS</a><br>
+<P>
+For every function in the 8-bit library there is a corresponding function in
+the 16-bit library with a name that starts with <b>pcre16_</b> instead of
+<b>pcre_</b>. The prototypes are listed above. In addition, there is one extra
+function, <b>pcre16_utf16_to_host_byte_order()</b>. This is a utility function
+that converts a UTF-16 character string to host byte order if necessary. The
+other 16-bit functions expect the strings they are passed to be in host byte
+order.
+</P>
+<P>
+The <i>input</i> and <i>output</i> arguments of
+<b>pcre16_utf16_to_host_byte_order()</b> may point to the same address, that is,
+conversion in place is supported. The output buffer must be at least as long as
+the input.
+</P>
+<P>
+The <i>length</i> argument specifies the number of 16-bit data units in the
+input string; a negative value specifies a zero-terminated string.
+</P>
+<P>
+If <i>byte_order</i> is NULL, it is assumed that the string starts off in host
+byte order. This may be changed by byte-order marks (BOMs) anywhere in the
+string (commonly as the first character).
+</P>
+<P>
+If <i>byte_order</i> is not NULL, a non-zero value of the integer to which it
+points means that the input starts off in host byte order, otherwise the
+opposite order is assumed. Again, BOMs in the string can change this. The final
+byte order is passed back at the end of processing.
+</P>
+<P>
+If <i>keep_boms</i> is not zero, byte-order mark characters (0xfeff) are copied
+into the output string. Otherwise they are discarded.
+</P>
+<P>
+The result of the function is the number of 16-bit units placed into the output
+buffer, including the zero terminator if the string was zero-terminated.
+</P>
+<br><a name="SEC12" href="#TOC1">SUBJECT STRING OFFSETS</a><br>
+<P>
+The offsets within subject strings that are returned by the matching functions
+are in 16-bit units rather than bytes.
+</P>
+<br><a name="SEC13" href="#TOC1">NAMED SUBPATTERNS</a><br>
+<P>
+The name-to-number translation table that is maintained for named subpatterns
+uses 16-bit characters. The <b>pcre16_get_stringtable_entries()</b> function
+returns the length of each entry in the table as the number of 16-bit data
+units.
+</P>
+<br><a name="SEC14" href="#TOC1">OPTION NAMES</a><br>
+<P>
+There are two new general option names, PCRE_UTF16 and PCRE_NO_UTF16_CHECK,
+which correspond to PCRE_UTF8 and PCRE_NO_UTF8_CHECK in the 8-bit library. In
+fact, these new options define the same bits in the options word. There is a
+discussion about the
+<a href="pcreunicode.html#utf16strings">validity of UTF-16 strings</a>
+in the
+<a href="pcreunicode.html"><b>pcreunicode</b></a>
+page.
+</P>
+<P>
+For the <b>pcre16_config()</b> function there is an option PCRE_CONFIG_UTF16
+that returns 1 if UTF-16 support is configured, otherwise 0. If this option is
+given to <b>pcre_config()</b>, or if the PCRE_CONFIG_UTF8 option is given to
+<b>pcre16_config()</b>, the result is the PCRE_ERROR_BADOPTION error.
+</P>
+<br><a name="SEC15" href="#TOC1">CHARACTER CODES</a><br>
+<P>
+In 16-bit mode, when PCRE_UTF16 is not set, character values are treated in the
+same way as in 8-bit, non UTF-8 mode, except, of course, that they can range
+from 0 to 0xffff instead of 0 to 0xff. Character types for characters less than
+0xff can therefore be influenced by the locale in the same way as before.
+Characters greater than 0xff have only one case, and no "type" (such as letter
+or digit).
+</P>
+<P>
+In UTF-16 mode, the character code is Unicode, in the range 0 to 0x10ffff, with
+the exception of values in the range 0xd800 to 0xdfff because those are
+"surrogate" values that are used in pairs to encode values greater than 0xffff.
+</P>
+<P>
+A UTF-16 string can indicate its endianness by special code knows as a
+byte-order mark (BOM). The PCRE functions do not handle this, expecting strings
+to be in host byte order. A utility function called
+<b>pcre16_utf16_to_host_byte_order()</b> is provided to help with this (see
+above).
+</P>
+<br><a name="SEC16" href="#TOC1">ERROR NAMES</a><br>
+<P>
+The errors PCRE_ERROR_BADUTF16_OFFSET and PCRE_ERROR_SHORTUTF16 correspond to
+their 8-bit counterparts. The error PCRE_ERROR_BADMODE is given when a compiled
+pattern is passed to a function that processes patterns in the other
+mode, for example, if a pattern compiled with <b>pcre_compile()</b> is passed to
+<b>pcre16_exec()</b>.
+</P>
+<P>
+There are new error codes whose names begin with PCRE_UTF16_ERR for invalid
+UTF-16 strings, corresponding to the PCRE_UTF8_ERR codes for UTF-8 strings that
+are described in the section entitled
+<a href="pcreapi.html#badutf8reasons">"Reason codes for invalid UTF-8 strings"</a>
+in the main
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page. The UTF-16 errors are:
+<pre>
+  PCRE_UTF16_ERR1  Missing low surrogate at end of string
+  PCRE_UTF16_ERR2  Invalid low surrogate follows high surrogate
+  PCRE_UTF16_ERR3  Isolated low surrogate
+  PCRE_UTF16_ERR4  Invalid character 0xfffe
+</PRE>
+</P>
+<br><a name="SEC17" href="#TOC1">ERROR TEXTS</a><br>
+<P>
+If there is an error while compiling a pattern, the error text that is passed
+back by <b>pcre16_compile()</b> or <b>pcre16_compile2()</b> is still an 8-bit
+character string, zero-terminated.
+</P>
+<br><a name="SEC18" href="#TOC1">CALLOUTS</a><br>
+<P>
+The <i>subject</i> and <i>mark</i> fields in the callout block that is passed to
+a callout function point to 16-bit vectors.
+</P>
+<br><a name="SEC19" href="#TOC1">TESTING</a><br>
+<P>
+The <b>pcretest</b> program continues to operate with 8-bit input and output
+files, but it can be used for testing the 16-bit library. If it is run with the
+command line option <b>-16</b>, patterns and subject strings are converted from
+8-bit to 16-bit before being passed to PCRE, and the 16-bit library functions
+are used instead of the 8-bit ones. Returned 16-bit strings are converted to
+8-bit for output. If the 8-bit library was not compiled, <b>pcretest</b>
+defaults to 16-bit and the <b>-16</b> option is ignored.
+</P>
+<P>
+When PCRE is being built, the <b>RunTest</b> script that is called by "make
+check" uses the <b>pcretest</b> <b>-C</b> option to discover which of the 8-bit
+and 16-bit libraries has been built, and runs the tests appropriately.
+</P>
+<br><a name="SEC20" href="#TOC1">NOT SUPPORTED IN 16-BIT MODE</a><br>
+<P>
+Not all the features of the 8-bit library are available with the 16-bit
+library. The C++ and POSIX wrapper functions support only the 8-bit library,
+and the <b>pcregrep</b> program is at present 8-bit only.
+</P>
+<br><a name="SEC21" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC22" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 14 April 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_assign_jit_stack.html b/8.31/doc/html/pcre_assign_jit_stack.html
new file mode 100644
index 0000000..8dca1e7
--- /dev/null
+++ b/8.31/doc/html/pcre_assign_jit_stack.html
@@ -0,0 +1,72 @@
+<html>
+<head>
+<title>pcre_assign_jit_stack specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_assign_jit_stack man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>void pcre_assign_jit_stack(pcre_extra *<i>extra</i>,</b>
+<b>pcre_jit_callback <i>callback</i>, void *<i>data</i>);</b>
+</P>
+<P>
+<b>void pcre16_assign_jit_stack(pcre16_extra *<i>extra</i>,</b>
+<b>pcre16_jit_callback <i>callback</i>, void *<i>data</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function provides control over the memory used as a stack at run-time by a
+call to <b>pcre[16]_exec()</b> with a pattern that has been successfully
+compiled with JIT optimization. The arguments are:
+<pre>
+  extra     the data pointer returned by <b>pcre[16]_study()</b>
+  callback  a callback function
+  data      a JIT stack or a value to be passed to the callback
+              function
+</PRE>
+</P>
+<P>
+If <i>callback</i> is NULL and <i>data</i> is NULL, an internal 32K block on
+the machine stack is used.
+</P>
+<P>
+If <i>callback</i> is NULL and <i>data</i> is not NULL, <i>data</i> must
+be a valid JIT stack, the result of calling <b>pcre[16]_jit_stack_alloc()</b>.
+</P>
+<P>
+If <i>callback</i> not NULL, it is called with <i>data</i> as an argument at
+the start of matching, in order to set up a JIT stack. If the result is NULL,
+the internal 32K stack is used; otherwise the return value must be a valid JIT
+stack, the result of calling <b>pcre[16]_jit_stack_alloc()</b>.
+</P>
+<P>
+You may safely assign the same JIT stack to multiple patterns, as long as they
+are all matched in the same thread. In a multithread application, each thread
+must use its own JIT stack. For more details, see the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+page.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_compile.html b/8.31/doc/html/pcre_compile.html
new file mode 100644
index 0000000..fd48b44
--- /dev/null
+++ b/8.31/doc/html/pcre_compile.html
@@ -0,0 +1,99 @@
+<html>
+<head>
+<title>pcre_compile specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_compile man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>pcre *pcre_compile(const char *<i>pattern</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<P>
+<b>pcre16 *pcre16_compile(PCRE_SPTR16 <i>pattern</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function compiles a regular expression into an internal form. It is the
+same as <b>pcre[16]_compile2()</b>, except for the absence of the
+<i>errorcodeptr</i> argument. Its arguments are:
+<pre>
+  <i>pattern</i>       A zero-terminated string containing the
+                  regular expression to be compiled
+  <i>options</i>       Zero or more option bits
+  <i>errptr</i>        Where to put an error message
+  <i>erroffset</i>     Offset in pattern where error was found
+  <i>tableptr</i>      Pointer to character tables, or NULL to
+                  use the built-in default
+</pre>
+The option bits are:
+<pre>
+  PCRE_ANCHORED           Force pattern anchoring
+  PCRE_AUTO_CALLOUT       Compile automatic callouts
+  PCRE_BSR_ANYCRLF        \R matches only CR, LF, or CRLF
+  PCRE_BSR_UNICODE        \R matches all Unicode line endings
+  PCRE_CASELESS           Do caseless matching
+  PCRE_DOLLAR_ENDONLY     $ not to match newline at end
+  PCRE_DOTALL             . matches anything including NL
+  PCRE_DUPNAMES           Allow duplicate names for subpatterns
+  PCRE_EXTENDED           Ignore white space and # comments
+  PCRE_EXTRA              PCRE extra features
+                            (not much use currently)
+  PCRE_FIRSTLINE          Force matching to be before newline
+  PCRE_JAVASCRIPT_COMPAT  JavaScript compatibility
+  PCRE_MULTILINE          ^ and $ match newlines within data
+  PCRE_NEWLINE_ANY        Recognize any Unicode newline sequence
+  PCRE_NEWLINE_ANYCRLF    Recognize CR, LF, and CRLF as newline
+                            sequences
+  PCRE_NEWLINE_CR         Set CR as the newline sequence
+  PCRE_NEWLINE_CRLF       Set CRLF as the newline sequence
+  PCRE_NEWLINE_LF         Set LF as the newline sequence
+  PCRE_NO_AUTO_CAPTURE    Disable numbered capturing paren-
+                            theses (named ones available)
+  PCRE_NO_UTF16_CHECK     Do not check the pattern for UTF-16
+                            validity (only relevant if
+                            PCRE_UTF16 is set)
+  PCRE_NO_UTF8_CHECK      Do not check the pattern for UTF-8
+                            validity (only relevant if
+                            PCRE_UTF8 is set)
+  PCRE_UCP                Use Unicode properties for \d, \w, etc.
+  PCRE_UNGREEDY           Invert greediness of quantifiers
+  PCRE_UTF16              Run in <b>pcre16_compile()</b> UTF-16 mode
+  PCRE_UTF8               Run in <b>pcre_compile()</b> UTF-8 mode
+</pre>
+PCRE must be built with UTF support in order to use PCRE_UTF8/16 and
+PCRE_NO_UTF8/16_CHECK, and with UCP support if PCRE_UCP is used.
+</P>
+<P>
+The yield of the function is a pointer to a private data structure that
+contains the compiled pattern, or NULL if an error was detected. Note that
+compiling regular expressions with one version of PCRE for use with a different
+version is not guaranteed to work and may cause crashes.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_compile2.html b/8.31/doc/html/pcre_compile2.html
new file mode 100644
index 0000000..9c177b6
--- /dev/null
+++ b/8.31/doc/html/pcre_compile2.html
@@ -0,0 +1,102 @@
+<html>
+<head>
+<title>pcre_compile2 specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_compile2 man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>pcre *pcre_compile2(const char *<i>pattern</i>, int <i>options</i>,</b>
+<b>int *<i>errorcodeptr</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<P>
+<b>pcre16 *pcre16_compile2(PCRE_SPTR16 <i>pattern</i>, int <i>options</i>,</b>
+<b>int *<i>errorcodeptr</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function compiles a regular expression into an internal form. It is the
+same as <b>pcre[16]_compile()</b>, except for the addition of the
+<i>errorcodeptr</i> argument. The arguments are:
+<pre>
+  <i>pattern</i>       A zero-terminated string containing the
+                  regular expression to be compiled
+  <i>options</i>       Zero or more option bits
+  <i>errorcodeptr</i>  Where to put an error code
+  <i>errptr</i>        Where to put an error message
+  <i>erroffset</i>     Offset in pattern where error was found
+  <i>tableptr</i>      Pointer to character tables, or NULL to
+                  use the built-in default
+</pre>
+The option bits are:
+<pre>
+  PCRE_ANCHORED           Force pattern anchoring
+  PCRE_AUTO_CALLOUT       Compile automatic callouts
+  PCRE_BSR_ANYCRLF        \R matches only CR, LF, or CRLF
+  PCRE_BSR_UNICODE        \R matches all Unicode line endings
+  PCRE_CASELESS           Do caseless matching
+  PCRE_DOLLAR_ENDONLY     $ not to match newline at end
+  PCRE_DOTALL             . matches anything including NL
+  PCRE_DUPNAMES           Allow duplicate names for subpatterns
+  PCRE_EXTENDED           Ignore white space and # comments
+  PCRE_EXTRA              PCRE extra features
+                            (not much use currently)
+  PCRE_FIRSTLINE          Force matching to be before newline
+  PCRE_JAVASCRIPT_COMPAT  JavaScript compatibility
+  PCRE_MULTILINE          ^ and $ match newlines within data
+  PCRE_NEWLINE_ANY        Recognize any Unicode newline sequence
+  PCRE_NEWLINE_ANYCRLF    Recognize CR, LF, and CRLF as newline
+                            sequences
+  PCRE_NEWLINE_CR         Set CR as the newline sequence
+  PCRE_NEWLINE_CRLF       Set CRLF as the newline sequence
+  PCRE_NEWLINE_LF         Set LF as the newline sequence
+  PCRE_NO_AUTO_CAPTURE    Disable numbered capturing paren-
+                            theses (named ones available)
+  PCRE_NO_UTF16_CHECK     Do not check the pattern for UTF-16
+                            validity (only relevant if
+                            PCRE_UTF16 is set)
+  PCRE_NO_UTF8_CHECK      Do not check the pattern for UTF-8
+                            validity (only relevant if
+                            PCRE_UTF8 is set)
+  PCRE_UCP                Use Unicode properties for \d, \w, etc.
+  PCRE_UNGREEDY           Invert greediness of quantifiers
+  PCRE_UTF16              Run <b>pcre16_compile()</b> in UTF-16 mode
+  PCRE_UTF8               Run <b>pcre_compile()</b> in UTF-8 mode
+</pre>
+PCRE must be built with UTF support in order to use PCRE_UTF8/16 and
+PCRE_NO_UTF8/16_CHECK, and with UCP support if PCRE_UCP is used.
+</P>
+<P>
+The yield of the function is a pointer to a private data structure that
+contains the compiled pattern, or NULL if an error was detected. Note that
+compiling regular expressions with one version of PCRE for use with a different
+version is not guaranteed to work and may cause crashes.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_config.html b/8.31/doc/html/pcre_config.html
new file mode 100644
index 0000000..dcfb831
--- /dev/null
+++ b/8.31/doc/html/pcre_config.html
@@ -0,0 +1,84 @@
+<html>
+<head>
+<title>pcre_config specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_config man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_config(int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<P>
+<b>int pcre16_config(int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function makes it possible for a client program to find out which optional
+features are available in the version of the PCRE library it is using. The
+arguments are as follows:
+<pre>
+  <i>what</i>     A code specifying what information is required
+  <i>where</i>    Points to where to put the data
+</pre>
+The <i>where</i> argument must point to an integer variable, except for
+PCRE_CONFIG_MATCH_LIMIT and PCRE_CONFIG_MATCH_LIMIT_RECURSION, when it must
+point to an unsigned long integer. The available codes are:
+<pre>
+  PCRE_CONFIG_JIT           Availability of just-in-time compiler
+                              support (1=yes 0=no)
+  PCRE_CONFIG_JITTARGET     String containing information about the
+                              target architecture for the JIT compiler,
+                              or NULL if there is no JIT support
+  PCRE_CONFIG_LINK_SIZE     Internal link size: 2, 3, or 4
+  PCRE_CONFIG_MATCH_LIMIT   Internal resource limit
+  PCRE_CONFIG_MATCH_LIMIT_RECURSION
+                            Internal recursion depth limit
+  PCRE_CONFIG_NEWLINE       Value of the default newline sequence:
+                                13 (0x000d)    for CR
+                                10 (0x000a)    for LF
+                              3338 (0x0d0a)    for CRLF
+                                -2             for ANYCRLF
+                                -1             for ANY
+  PCRE_CONFIG_BSR           Indicates what \R matches by default:
+                                 0             all Unicode line endings
+                                 1             CR, LF, or CRLF only
+  PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
+                            Threshold of return slots, above which
+                              <b>malloc()</b> is used by the POSIX API
+  PCRE_CONFIG_STACKRECURSE  Recursion implementation (1=stack 0=heap)
+  PCRE_CONFIG_UTF16         Availability of UTF-16 support (1=yes
+                               0=no); option for <b>pcre16_config()</b>
+  PCRE_CONFIG_UTF8          Availability of UTF-8 support (1=yes 0=no);
+                              option for <b>pcre_config()</b>
+  PCRE_CONFIG_UNICODE_PROPERTIES
+                            Availability of Unicode property support
+                              (1=yes 0=no)
+</pre>
+The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise. That error
+is also given if PCRE_CONFIG_UTF16 is passed to <b>pcre_config()</b> or if
+PCRE_CONFIG_UTF8 is passed to <b>pcre16_config()</b>.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_copy_named_substring.html b/8.31/doc/html/pcre_copy_named_substring.html
new file mode 100644
index 0000000..40293e5
--- /dev/null
+++ b/8.31/doc/html/pcre_copy_named_substring.html
@@ -0,0 +1,59 @@
+<html>
+<head>
+<title>pcre_copy_named_substring specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_copy_named_substring man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_copy_named_substring(const pcre *<i>code</i>,</b>
+<b>const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, const char *<i>stringname</i>,</b>
+<b>char *<i>buffer</i>, int <i>buffersize</i>);</b>
+</P>
+<P>
+<b>int pcre16_copy_named_substring(const pcre16 *<i>code</i>,</b>
+<b>PCRE_SPTR16 <i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, PCRE_SPTR16 <i>stringname</i>,</b>
+<b>PCRE_UCHAR16 *<i>buffer</i>, int <i>buffersize</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This is a convenience function for extracting a captured substring, identified
+by name, into a given buffer. The arguments are:
+<pre>
+  <i>code</i>          Pattern that was successfully matched
+  <i>subject</i>       Subject that has been successfully matched
+  <i>ovector</i>       Offset vector that <b>pcre[16]_exec()</b> used
+  <i>stringcount</i>   Value returned by <b>pcre[16]_exec()</b>
+  <i>stringname</i>    Name of the required substring
+  <i>buffer</i>        Buffer to receive the string
+  <i>buffersize</i>    Size of buffer
+</pre>
+The yield is the length of the substring, PCRE_ERROR_NOMEMORY if the buffer was
+too small, or PCRE_ERROR_NOSUBSTRING if the string name is invalid.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_copy_substring.html b/8.31/doc/html/pcre_copy_substring.html
new file mode 100644
index 0000000..12a5db4
--- /dev/null
+++ b/8.31/doc/html/pcre_copy_substring.html
@@ -0,0 +1,56 @@
+<html>
+<head>
+<title>pcre_copy_substring specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_copy_substring man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_copy_substring(const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>, char *<i>buffer</i>,</b>
+<b>int <i>buffersize</i>);</b>
+</P>
+<P>
+<b>int pcre16_copy_substring(PCRE_SPTR16 <i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>, PCRE_UCHAR16 *<i>buffer</i>,</b>
+<b>int <i>buffersize</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This is a convenience function for extracting a captured substring into a given
+buffer. The arguments are:
+<pre>
+  <i>subject</i>       Subject that has been successfully matched
+  <i>ovector</i>       Offset vector that <b>pcre[16]_exec()</b> used
+  <i>stringcount</i>   Value returned by <b>pcre[16]_exec()</b>
+  <i>stringnumber</i>  Number of the required substring
+  <i>buffer</i>        Buffer to receive the string
+  <i>buffersize</i>    Size of buffer
+</pre>
+The yield is the length of the string, PCRE_ERROR_NOMEMORY if the buffer was
+too small, or PCRE_ERROR_NOSUBSTRING if the string number is invalid.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_dfa_exec.html b/8.31/doc/html/pcre_dfa_exec.html
new file mode 100644
index 0000000..76a1baa
--- /dev/null
+++ b/8.31/doc/html/pcre_dfa_exec.html
@@ -0,0 +1,119 @@
+<html>
+<head>
+<title>pcre_dfa_exec specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_dfa_exec man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_dfa_exec(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>const char *<i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>,</b>
+<b>int *<i>workspace</i>, int <i>wscount</i>);</b>
+</P>
+<P>
+<b>int pcre16_dfa_exec(const pcre16 *<i>code</i>, const pcre16_extra *<i>extra</i>,</b>
+<b>PCRE_SPTR16 <i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>,</b>
+<b>int *<i>workspace</i>, int <i>wscount</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function matches a compiled regular expression against a given subject
+string, using an alternative matching algorithm that scans the subject string
+just once (<i>not</i> Perl-compatible). Note that the main, Perl-compatible,
+matching function is <b>pcre[16]_exec()</b>. The arguments for this function
+are:
+<pre>
+  <i>code</i>         Points to the compiled pattern
+  <i>extra</i>        Points to an associated <b>pcre[16]_extra</b> structure,
+                 or is NULL
+  <i>subject</i>      Points to the subject string
+  <i>length</i>       Length of the subject string, in bytes
+  <i>startoffset</i>  Offset in bytes in the subject at which to
+                 start matching
+  <i>options</i>      Option bits
+  <i>ovector</i>      Points to a vector of ints for result offsets
+  <i>ovecsize</i>     Number of elements in the vector
+  <i>workspace</i>    Points to a vector of ints used as working space
+  <i>wscount</i>      Number of elements in the vector
+</pre>
+The options are:
+<pre>
+  PCRE_ANCHORED          Match only at the first position
+  PCRE_BSR_ANYCRLF       \R matches only CR, LF, or CRLF
+  PCRE_BSR_UNICODE       \R matches all Unicode line endings
+  PCRE_NEWLINE_ANY       Recognize any Unicode newline sequence
+  PCRE_NEWLINE_ANYCRLF   Recognize CR, LF, & CRLF as newline sequences
+  PCRE_NEWLINE_CR        Recognize CR as the only newline sequence
+  PCRE_NEWLINE_CRLF      Recognize CRLF as the only newline sequence
+  PCRE_NEWLINE_LF        Recognize LF as the only newline sequence
+  PCRE_NOTBOL            Subject is not the beginning of a line
+  PCRE_NOTEOL            Subject is not the end of a line
+  PCRE_NOTEMPTY          An empty string is not a valid match
+  PCRE_NOTEMPTY_ATSTART  An empty string at the start of the subject
+                           is not a valid match
+  PCRE_NO_START_OPTIMIZE Do not do "start-match" optimizations
+  PCRE_NO_UTF16_CHECK    Do not check the subject for UTF-16
+                           validity (only relevant if PCRE_UTF16
+                           was set at compile time)
+  PCRE_NO_UTF8_CHECK     Do not check the subject for UTF-8
+                           validity (only relevant if PCRE_UTF8
+                           was set at compile time)
+  PCRE_PARTIAL           ) Return PCRE_ERROR_PARTIAL for a partial
+  PCRE_PARTIAL_SOFT      )   match if no full matches are found
+  PCRE_PARTIAL_HARD      Return PCRE_ERROR_PARTIAL for a partial match
+                           even if there is a full match as well
+  PCRE_DFA_SHORTEST      Return only the shortest match
+  PCRE_DFA_RESTART       Restart after a partial match
+</pre>
+There are restrictions on what may appear in a pattern when using this matching
+function. Details are given in the
+<a href="pcrematching.html"><b>pcrematching</b></a>
+documentation. For details of partial matching, see the
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+page.
+</P>
+<P>
+A <b>pcre[16]_extra</b> structure contains the following fields:
+<pre>
+  <i>flags</i>            Bits indicating which fields are set
+  <i>study_data</i>       Opaque data from <b>pcre[16]_study()</b>
+  <i>match_limit</i>      Limit on internal resource use
+  <i>match_limit_recursion</i>  Limit on internal recursion depth
+  <i>callout_data</i>     Opaque data passed back to callouts
+  <i>tables</i>           Points to character tables or is NULL
+  <i>mark</i>             For passing back a *MARK pointer
+  <i>executable_jit</i>   Opaque data from JIT compilation
+</pre>
+The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
+PCRE_EXTRA_MATCH_LIMIT_RECURSION, PCRE_EXTRA_CALLOUT_DATA,
+PCRE_EXTRA_TABLES, PCRE_EXTRA_MARK and PCRE_EXTRA_EXECUTABLE_JIT. For this
+matching function, the <i>match_limit</i> and <i>match_limit_recursion</i> fields
+are not used, and must not be set. The PCRE_EXTRA_EXECUTABLE_JIT flag and
+the corresponding variable are ignored.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_exec.html b/8.31/doc/html/pcre_exec.html
new file mode 100644
index 0000000..98f742f
--- /dev/null
+++ b/8.31/doc/html/pcre_exec.html
@@ -0,0 +1,102 @@
+<html>
+<head>
+<title>pcre_exec specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_exec man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_exec(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>const char *<i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>);</b>
+</P>
+<P>
+<b>int pcre16_exec(const pcre16 *<i>code</i>, const pcre16_extra *<i>extra</i>,</b>
+<b>PCRE_SPTR16 <i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function matches a compiled regular expression against a given subject
+string, using a matching algorithm that is similar to Perl's. It returns
+offsets to captured substrings. Its arguments are:
+<pre>
+  <i>code</i>         Points to the compiled pattern
+  <i>extra</i>        Points to an associated <b>pcre[16]_extra</b> structure,
+                 or is NULL
+  <i>subject</i>      Points to the subject string
+  <i>length</i>       Length of the subject string, in bytes
+  <i>startoffset</i>  Offset in bytes in the subject at which to
+                 start matching
+  <i>options</i>      Option bits
+  <i>ovector</i>      Points to a vector of ints for result offsets
+  <i>ovecsize</i>     Number of elements in the vector (a multiple of 3)
+</pre>
+The options are:
+<pre>
+  PCRE_ANCHORED          Match only at the first position
+  PCRE_BSR_ANYCRLF       \R matches only CR, LF, or CRLF
+  PCRE_BSR_UNICODE       \R matches all Unicode line endings
+  PCRE_NEWLINE_ANY       Recognize any Unicode newline sequence
+  PCRE_NEWLINE_ANYCRLF   Recognize CR, LF, & CRLF as newline sequences
+  PCRE_NEWLINE_CR        Recognize CR as the only newline sequence
+  PCRE_NEWLINE_CRLF      Recognize CRLF as the only newline sequence
+  PCRE_NEWLINE_LF        Recognize LF as the only newline sequence
+  PCRE_NOTBOL            Subject string is not the beginning of a line
+  PCRE_NOTEOL            Subject string is not the end of a line
+  PCRE_NOTEMPTY          An empty string is not a valid match
+  PCRE_NOTEMPTY_ATSTART  An empty string at the start of the subject
+                           is not a valid match
+  PCRE_NO_START_OPTIMIZE Do not do "start-match" optimizations
+  PCRE_NO_UTF16_CHECK    Do not check the subject for UTF-16
+                           validity (only relevant if PCRE_UTF16
+                           was set at compile time)
+  PCRE_NO_UTF8_CHECK     Do not check the subject for UTF-8
+                           validity (only relevant if PCRE_UTF8
+                           was set at compile time)
+  PCRE_PARTIAL           ) Return PCRE_ERROR_PARTIAL for a partial
+  PCRE_PARTIAL_SOFT      )   match if no full matches are found
+  PCRE_PARTIAL_HARD      Return PCRE_ERROR_PARTIAL for a partial match
+                           if that is found before a full match
+</pre>
+For details of partial matching, see the
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+page. A <b>pcre_extra</b> structure contains the following fields:
+<pre>
+  <i>flags</i>            Bits indicating which fields are set
+  <i>study_data</i>       Opaque data from <b>pcre[16]_study()</b>
+  <i>match_limit</i>      Limit on internal resource use
+  <i>match_limit_recursion</i>  Limit on internal recursion depth
+  <i>callout_data</i>     Opaque data passed back to callouts
+  <i>tables</i>           Points to character tables or is NULL
+  <i>mark</i>             For passing back a *MARK pointer
+  <i>executable_jit</i>   Opaque data from JIT compilation
+</pre>
+The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
+PCRE_EXTRA_MATCH_LIMIT_RECURSION, PCRE_EXTRA_CALLOUT_DATA,
+PCRE_EXTRA_TABLES, PCRE_EXTRA_MARK and PCRE_EXTRA_EXECUTABLE_JIT.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_free_study.html b/8.31/doc/html/pcre_free_study.html
new file mode 100644
index 0000000..1bbcffe
--- /dev/null
+++ b/8.31/doc/html/pcre_free_study.html
@@ -0,0 +1,43 @@
+<html>
+<head>
+<title>pcre_free_study specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_free_study man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>void pcre_free_study(pcre_extra *<i>extra</i>);</b>
+</P>
+<P>
+<b>void pcre16_free_study(pcre16_extra *<i>extra</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function is used to free the memory used for the data generated by a call
+to <b>pcre[16]_study()</b> when it is no longer needed. The argument must be the
+result of such a call.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_free_substring.html b/8.31/doc/html/pcre_free_substring.html
new file mode 100644
index 0000000..d820745
--- /dev/null
+++ b/8.31/doc/html/pcre_free_substring.html
@@ -0,0 +1,43 @@
+<html>
+<head>
+<title>pcre_free_substring specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_free_substring man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>void pcre_free_substring(const char *<i>stringptr</i>);</b>
+</P>
+<P>
+<b>void pcre16_free_substring(PCRE_SPTR16 <i>stringptr</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This is a convenience function for freeing the store obtained by a previous
+call to <b>pcre[16]_get_substring()</b> or <b>pcre[16]_get_named_substring()</b>.
+Its only argument is a pointer to the string.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_free_substring_list.html b/8.31/doc/html/pcre_free_substring_list.html
new file mode 100644
index 0000000..26e2daf
--- /dev/null
+++ b/8.31/doc/html/pcre_free_substring_list.html
@@ -0,0 +1,43 @@
+<html>
+<head>
+<title>pcre_free_substring_list specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_free_substring_list man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>void pcre_free_substring_list(const char **<i>stringptr</i>);</b>
+</P>
+<P>
+<b>void pcre16_free_substring_list(PCRE_SPTR16 *<i>stringptr</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This is a convenience function for freeing the store obtained by a previous
+call to <b>pcre[16]_get_substring_list()</b>. Its only argument is a pointer to
+the list of string pointers.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_fullinfo.html b/8.31/doc/html/pcre_fullinfo.html
new file mode 100644
index 0000000..edb6eb7
--- /dev/null
+++ b/8.31/doc/html/pcre_fullinfo.html
@@ -0,0 +1,91 @@
+<html>
+<head>
+<title>pcre_fullinfo specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_fullinfo man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_fullinfo(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<P>
+<b>int pcre16_fullinfo(const pcre16 *<i>code</i>, const pcre16_extra *<i>extra</i>,</b>
+<b>int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function returns information about a compiled pattern. Its arguments are:
+<pre>
+  <i>code</i>                      Compiled regular expression
+  <i>extra</i>                     Result of <b>pcre[16]_study()</b> or NULL
+  <i>what</i>                      What information is required
+  <i>where</i>                     Where to put the information
+</pre>
+The following information is available:
+<pre>
+  PCRE_INFO_BACKREFMAX      Number of highest back reference
+  PCRE_INFO_CAPTURECOUNT    Number of capturing subpatterns
+  PCRE_INFO_DEFAULT_TABLES  Pointer to default tables
+  PCRE_INFO_FIRSTBYTE       Fixed first data unit for a match, or
+                              -1 for start of string
+                                 or after newline, or
+                              -2 otherwise
+  PCRE_INFO_FIRSTTABLE      Table of first data units (after studying)
+  PCRE_INFO_HASCRORLF       Return 1 if explicit CR or LF matches exist
+  PCRE_INFO_JCHANGED        Return 1 if (?J) or (?-J) was used
+  PCRE_INFO_JIT             Return 1 after successful JIT compilation
+  PCRE_INFO_JITSIZE         Size of JIT compiled code
+  PCRE_INFO_LASTLITERAL     Literal last data unit required
+  PCRE_INFO_MINLENGTH       Lower bound length of matching strings
+  PCRE_INFO_NAMECOUNT       Number of named subpatterns
+  PCRE_INFO_NAMEENTRYSIZE   Size of name table entry
+  PCRE_INFO_NAMETABLE       Pointer to name table
+  PCRE_INFO_OKPARTIAL       Return 1 if partial matching can be tried
+                              (always returns 1 after release 8.00)
+  PCRE_INFO_OPTIONS         Option bits used for compilation
+  PCRE_INFO_SIZE            Size of compiled pattern
+  PCRE_INFO_STUDYSIZE       Size of study data
+</pre>
+The <i>where</i> argument must point to an integer variable, except for the
+following <i>what</i> values:
+<pre>
+  PCRE_INFO_DEFAULT_TABLES  const unsigned char *
+  PCRE_INFO_FIRSTTABLE      const unsigned char *
+  PCRE_INFO_NAMETABLE       PCRE_SPTR16           (16-bit library)
+  PCRE_INFO_NAMETABLE       const unsigned char * (8-bit library)
+  PCRE_INFO_OPTIONS         unsigned long int
+  PCRE_INFO_SIZE            size_t
+</pre>
+The yield of the function is zero on success or:
+<pre>
+  PCRE_ERROR_NULL           the argument <i>code</i> was NULL
+                            the argument <i>where</i> was NULL
+  PCRE_ERROR_BADMAGIC       the "magic number" was not found
+  PCRE_ERROR_BADOPTION      the value of <i>what</i> was invalid
+</PRE>
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_get_named_substring.html b/8.31/doc/html/pcre_get_named_substring.html
new file mode 100644
index 0000000..5eea87c
--- /dev/null
+++ b/8.31/doc/html/pcre_get_named_substring.html
@@ -0,0 +1,62 @@
+<html>
+<head>
+<title>pcre_get_named_substring specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_get_named_substring man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_get_named_substring(const pcre *<i>code</i>,</b>
+<b>const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, const char *<i>stringname</i>,</b>
+<b>const char **<i>stringptr</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_named_substring(const pcre16 *<i>code</i>,</b>
+<b>PCRE_SPTR16 <i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, PCRE_SPTR16 <i>stringname</i>,</b>
+<b>PCRE_SPTR16 *<i>stringptr</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This is a convenience function for extracting a captured substring by name. The
+arguments are:
+<pre>
+  <i>code</i>          Compiled pattern
+  <i>subject</i>       Subject that has been successfully matched
+  <i>ovector</i>       Offset vector that <b>pcre[16]_exec()</b> used
+  <i>stringcount</i>   Value returned by <b>pcre[16]_exec()</b>
+  <i>stringname</i>    Name of the required substring
+  <i>stringptr</i>     Where to put the string pointer
+</pre>
+The memory in which the substring is placed is obtained by calling
+<b>pcre[16]_malloc()</b>. The convenience function
+<b>pcre[16]_free_substring()</b> can be used to free it when it is no longer
+needed. The yield of the function is the length of the extracted substring,
+PCRE_ERROR_NOMEMORY if sufficient memory could not be obtained, or
+PCRE_ERROR_NOSUBSTRING if the string name is invalid.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_get_stringnumber.html b/8.31/doc/html/pcre_get_stringnumber.html
new file mode 100644
index 0000000..1c9483a
--- /dev/null
+++ b/8.31/doc/html/pcre_get_stringnumber.html
@@ -0,0 +1,53 @@
+<html>
+<head>
+<title>pcre_get_stringnumber specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_get_stringnumber man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_get_stringnumber(const pcre *<i>code</i>,</b>
+<b>const char *<i>name</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_stringnumber(const pcre16 *<i>code</i>,</b>
+<b>PCRE_SPTR16 <i>name</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This convenience function finds the number of a named substring capturing
+parenthesis in a compiled pattern. Its arguments are:
+<pre>
+  <i>code</i>    Compiled regular expression
+  <i>name</i>    Name whose number is required
+</pre>
+The yield of the function is the number of the parenthesis if the name is
+found, or PCRE_ERROR_NOSUBSTRING otherwise. When duplicate names are allowed
+(PCRE_DUPNAMES is set), it is not defined which of the numbers is returned by
+<b>pcre[16]_get_stringnumber()</b>. You can obtain the complete list by calling
+<b>pcre[16]_get_stringtable_entries()</b>.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_get_stringtable_entries.html b/8.31/doc/html/pcre_get_stringtable_entries.html
new file mode 100644
index 0000000..954fb5b
--- /dev/null
+++ b/8.31/doc/html/pcre_get_stringtable_entries.html
@@ -0,0 +1,56 @@
+<html>
+<head>
+<title>pcre_get_stringtable_entries specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_get_stringtable_entries man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_get_stringtable_entries(const pcre *<i>code</i>,</b>
+<b>const char *<i>name</i>, char **<i>first</i>, char **<i>last</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_stringtable_entries(const pcre16 *<i>code</i>,</b>
+<b>PCRE_SPTR16 <i>name</i>, PCRE_UCHAR16 **<i>first</i>, PCRE_UCHAR16 **<i>last</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This convenience function finds, for a compiled pattern, the first and last
+entries for a given name in the table that translates capturing parenthesis
+names into numbers. When names are required to be unique (PCRE_DUPNAMES is
+<i>not</i> set), it is usually easier to use <b>pcre[16]_get_stringnumber()</b>
+instead.
+<pre>
+  <i>code</i>    Compiled regular expression
+  <i>name</i>    Name whose entries required
+  <i>first</i>   Where to return a pointer to the first entry
+  <i>last</i>    Where to return a pointer to the last entry
+</pre>
+The yield of the function is the length of each entry, or
+PCRE_ERROR_NOSUBSTRING if none are found.
+</P>
+<P>
+There is a complete description of the PCRE native API, including the format of
+the table entries, in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page, and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_get_substring.html b/8.31/doc/html/pcre_get_substring.html
new file mode 100644
index 0000000..279cee6
--- /dev/null
+++ b/8.31/doc/html/pcre_get_substring.html
@@ -0,0 +1,59 @@
+<html>
+<head>
+<title>pcre_get_substring specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_get_substring man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_get_substring(const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>,</b>
+<b>const char **<i>stringptr</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_substring(PCRE_SPTR16 <i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>,</b>
+<b>PCRE_SPTR16 *<i>stringptr</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This is a convenience function for extracting a captured substring. The
+arguments are:
+<pre>
+  <i>subject</i>       Subject that has been successfully matched
+  <i>ovector</i>       Offset vector that <b>pcre[16]_exec()</b> used
+  <i>stringcount</i>   Value returned by <b>pcre[16]_exec()</b>
+  <i>stringnumber</i>  Number of the required substring
+  <i>stringptr</i>     Where to put the string pointer
+</pre>
+The memory in which the substring is placed is obtained by calling
+<b>pcre[16]_malloc()</b>. The convenience function
+<b>pcre[16]_free_substring()</b> can be used to free it when it is no longer
+needed. The yield of the function is the length of the substring,
+PCRE_ERROR_NOMEMORY if sufficient memory could not be obtained, or
+PCRE_ERROR_NOSUBSTRING if the string number is invalid.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_get_substring_list.html b/8.31/doc/html/pcre_get_substring_list.html
new file mode 100644
index 0000000..178b22e
--- /dev/null
+++ b/8.31/doc/html/pcre_get_substring_list.html
@@ -0,0 +1,57 @@
+<html>
+<head>
+<title>pcre_get_substring_list specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_get_substring_list man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_get_substring_list(const char *<i>subject</i>,</b>
+<b>int *<i>ovector</i>, int <i>stringcount</i>, const char ***<i>listptr</i>);</b>
+</P>
+<P>
+<b>int pcre16_get_substring_list(PCRE_SPTR16 <i>subject</i>,</b>
+<b>int *<i>ovector</i>, int <i>stringcount</i>, PCRE_SPTR16 **<i>listptr</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This is a convenience function for extracting a list of all the captured
+substrings. The arguments are:
+<pre>
+  <i>subject</i>       Subject that has been successfully matched
+  <i>ovector</i>       Offset vector that <b>pcre[16]_exec</b> used
+  <i>stringcount</i>   Value returned by <b>pcre[16]_exec</b>
+  <i>listptr</i>       Where to put a pointer to the list
+</pre>
+The memory in which the substrings and the list are placed is obtained by
+calling <b>pcre[16]_malloc()</b>. The convenience function
+<b>pcre[16]_free_substring_list()</b> can be used to free it when it is no
+longer needed. A pointer to a list of pointers is put in the variable whose
+address is in <i>listptr</i>. The list is terminated by a NULL pointer. The
+yield of the function is zero on success or PCRE_ERROR_NOMEMORY if sufficient
+memory could not be obtained.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_jit_stack_alloc.html b/8.31/doc/html/pcre_jit_stack_alloc.html
new file mode 100644
index 0000000..a3a939f
--- /dev/null
+++ b/8.31/doc/html/pcre_jit_stack_alloc.html
@@ -0,0 +1,51 @@
+<html>
+<head>
+<title>pcre_jit_stack_alloc specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_jit_stack_alloc man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>pcre_jit_stack *pcre_jit_stack_alloc(int <i>startsize</i>,</b>
+<b>int <i>maxsize</i>);</b>
+</P>
+<P>
+<b>pcre16_jit_stack *pcre16_jit_stack_alloc(int <i>startsize</i>,</b>
+<b>int <i>maxsize</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function is used to create a stack for use by the code compiled by the JIT
+optimization of <b>pcre[16]_study()</b>. The arguments are a starting size for
+the stack, and a maximum size to which it is allowed to grow. The result can be
+passed to the JIT run-time code by <b>pcre[16]_assign_jit_stack()</b>, or that
+function can set up a callback for obtaining a stack. A maximum stack size of
+512K to 1M should be more than enough for any pattern. For more details, see
+the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+page.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_jit_stack_free.html b/8.31/doc/html/pcre_jit_stack_free.html
new file mode 100644
index 0000000..ecbf5d0
--- /dev/null
+++ b/8.31/doc/html/pcre_jit_stack_free.html
@@ -0,0 +1,45 @@
+<html>
+<head>
+<title>pcre_jit_stack_free specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_jit_stack_free man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>void pcre_jit_stack_free(pcre_jit_stack *<i>stack</i>);</b>
+</P>
+<P>
+<b>void pcre16_jit_stack_free(pcre16_jit_stack *<i>stack</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function is used to free a JIT stack that was created by
+<b>pcre[16]_jit_stack_alloc()</b> when it is no longer needed. For more details,
+see the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+page.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_maketables.html b/8.31/doc/html/pcre_maketables.html
new file mode 100644
index 0000000..a4be6b1
--- /dev/null
+++ b/8.31/doc/html/pcre_maketables.html
@@ -0,0 +1,45 @@
+<html>
+<head>
+<title>pcre_maketables specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_maketables man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>const unsigned char *pcre_maketables(void);</b>
+</P>
+<P>
+<b>const unsigned char *pcre16_maketables(void);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function builds a set of character tables for character values less than
+256. These can be passed to <b>pcre[16]_compile()</b> to override PCRE's
+internal, built-in tables (which were made by <b>pcre[16]_maketables()</b> when
+PCRE was compiled). You might want to do this if you are using a non-standard
+locale. The function yields a pointer to the tables.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_pattern_to_host_byte_order.html b/8.31/doc/html/pcre_pattern_to_host_byte_order.html
new file mode 100644
index 0000000..2fb7f10
--- /dev/null
+++ b/8.31/doc/html/pcre_pattern_to_host_byte_order.html
@@ -0,0 +1,54 @@
+<html>
+<head>
+<title>pcre_pattern_to_host_byte_order specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_pattern_to_host_byte_order man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_pattern_to_host_byte_order(pcre *<i>code</i>,</b>
+<b>pcre_extra *<i>extra</i>, const unsigned char *<i>tables</i>);</b>
+</P>
+<P>
+<b>int pcre16_pattern_to_host_byte_order(pcre16 *<i>code</i>,</b>
+<b>pcre16_extra *<i>extra</i>, const unsigned char *<i>tables</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function ensures that the bytes in 2-byte and 4-byte values in a compiled
+pattern are in the correct order for the current host. It is useful when a
+pattern that has been compiled on one host is transferred to another that might
+have different endianness. The arguments are:
+<pre>
+  <i>code</i>         A compiled regular expression
+  <i>extra</i>        Points to an associated <b>pcre[16]_extra</b> structure,
+                 or is NULL
+  <i>tables</i>       Pointer to character tables, or NULL to
+                 set the built-in default
+</pre>
+The result is 0 for success, a negative PCRE_ERROR_xxx value otherwise.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_refcount.html b/8.31/doc/html/pcre_refcount.html
new file mode 100644
index 0000000..a2af821
--- /dev/null
+++ b/8.31/doc/html/pcre_refcount.html
@@ -0,0 +1,48 @@
+<html>
+<head>
+<title>pcre_refcount specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_refcount man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre_refcount(pcre *<i>code</i>, int <i>adjust</i>);</b>
+</P>
+<P>
+<b>int pcre16_refcount(pcre16 *<i>code</i>, int <i>adjust</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function is used to maintain a reference count inside a data block that
+contains a compiled pattern. Its arguments are:
+<pre>
+  <i>code</i>                      Compiled regular expression
+  <i>adjust</i>                    Adjustment to reference value
+</pre>
+The yield of the function is the adjusted reference value, which is constrained
+to lie between 0 and 65535.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_study.html b/8.31/doc/html/pcre_study.html
new file mode 100644
index 0000000..ab56c62
--- /dev/null
+++ b/8.31/doc/html/pcre_study.html
@@ -0,0 +1,64 @@
+<html>
+<head>
+<title>pcre_study specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_study man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>pcre_extra *pcre_study(const pcre *<i>code</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>);</b>
+</P>
+<P>
+<b>pcre16_extra *pcre16_study(const pcre16 *<i>code</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function studies a compiled pattern, to see if additional information can
+be extracted that might speed up matching. Its arguments are:
+<pre>
+  <i>code</i>       A compiled regular expression
+  <i>options</i>    Options for <b>pcre[16]_study()</b>
+  <i>errptr</i>     Where to put an error message
+</pre>
+If the function succeeds, it returns a value that can be passed to
+<b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b> via their <i>extra</i>
+arguments.
+</P>
+<P>
+If the function returns NULL, either it could not find any additional
+information, or there was an error. You can tell the difference by looking at
+the error value. It is NULL in first case.
+</P>
+<P>
+The only option is PCRE_STUDY_JIT_COMPILE. It requests just-in-time compilation
+if possible. If PCRE has been compiled without JIT support, this option is
+ignored. See the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+page for further details.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_utf16_to_host_byte_order.html b/8.31/doc/html/pcre_utf16_to_host_byte_order.html
new file mode 100644
index 0000000..164e236
--- /dev/null
+++ b/8.31/doc/html/pcre_utf16_to_host_byte_order.html
@@ -0,0 +1,57 @@
+<html>
+<head>
+<title>pcre_utf16_to_host_byte_order specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_utf16_to_host_byte_order man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>int pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *<i>output</i>,</b>
+<b>PCRE_SPTR16 <i>input</i>, int <i>length</i>, int *<i>host_byte_order</i>,</b>
+<b>int <i>keep_boms</i>);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function, which exists only in the 16-bit library, converts a UTF-16
+string to the correct order for the current host, taking account of any byte
+order marks (BOMs) within the string. Its arguments are:
+<pre>
+  <i>output</i>           pointer to output buffer, may be the same as <i>input</i>
+  <i>input</i>            pointer to input buffer
+  <i>length</i>           number of 16-bit units in the input, or negative for
+                     a zero-terminated string
+  <i>host_byte_order</i>  a NULL value or a non-zero value pointed to means
+                     start in host byte order
+  <i>keep_boms</i>        if non-zero, BOMs are copied to the output string
+</pre>
+The result of the function is the number of 16-bit units placed into the output
+buffer, including the zero terminator if the string was zero-terminated.
+</P>
+<P>
+If <i>host_byte_order</i> is not NULL, it is set to indicate the byte order that
+is current at the end of the string.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcre_version.html b/8.31/doc/html/pcre_version.html
new file mode 100644
index 0000000..6b6a8ab
--- /dev/null
+++ b/8.31/doc/html/pcre_version.html
@@ -0,0 +1,43 @@
+<html>
+<head>
+<title>pcre_version specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcre_version man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SYNOPSIS
+</b><br>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<P>
+<b>const char *pcre_version(void);</b>
+</P>
+<P>
+<b>const char *pcre16_version(void);</b>
+</P>
+<br><b>
+DESCRIPTION
+</b><br>
+<P>
+This function (even in the 16-bit library) returns a zero-terminated, 8-bit
+character string that gives the version number of the PCRE library and the date
+of its release.
+</P>
+<P>
+There is a complete description of the PCRE native API in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page and a description of the POSIX API in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+page.
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcreapi.html b/8.31/doc/html/pcreapi.html
new file mode 100644
index 0000000..87f7f64
--- /dev/null
+++ b/8.31/doc/html/pcreapi.html
@@ -0,0 +1,2628 @@
+<html>
+<head>
+<title>pcreapi specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcreapi man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PCRE NATIVE API BASIC FUNCTIONS</a>
+<li><a name="TOC2" href="#SEC2">PCRE NATIVE API STRING EXTRACTION FUNCTIONS</a>
+<li><a name="TOC3" href="#SEC3">PCRE NATIVE API AUXILIARY FUNCTIONS</a>
+<li><a name="TOC4" href="#SEC4">PCRE NATIVE API INDIRECTED FUNCTIONS</a>
+<li><a name="TOC5" href="#SEC5">PCRE 8-BIT AND 16-BIT LIBRARIES</a>
+<li><a name="TOC6" href="#SEC6">PCRE API OVERVIEW</a>
+<li><a name="TOC7" href="#SEC7">NEWLINES</a>
+<li><a name="TOC8" href="#SEC8">MULTITHREADING</a>
+<li><a name="TOC9" href="#SEC9">SAVING PRECOMPILED PATTERNS FOR LATER USE</a>
+<li><a name="TOC10" href="#SEC10">CHECKING BUILD-TIME OPTIONS</a>
+<li><a name="TOC11" href="#SEC11">COMPILING A PATTERN</a>
+<li><a name="TOC12" href="#SEC12">COMPILATION ERROR CODES</a>
+<li><a name="TOC13" href="#SEC13">STUDYING A PATTERN</a>
+<li><a name="TOC14" href="#SEC14">LOCALE SUPPORT</a>
+<li><a name="TOC15" href="#SEC15">INFORMATION ABOUT A PATTERN</a>
+<li><a name="TOC16" href="#SEC16">REFERENCE COUNTS</a>
+<li><a name="TOC17" href="#SEC17">MATCHING A PATTERN: THE TRADITIONAL FUNCTION</a>
+<li><a name="TOC18" href="#SEC18">EXTRACTING CAPTURED SUBSTRINGS BY NUMBER</a>
+<li><a name="TOC19" href="#SEC19">EXTRACTING CAPTURED SUBSTRINGS BY NAME</a>
+<li><a name="TOC20" href="#SEC20">DUPLICATE SUBPATTERN NAMES</a>
+<li><a name="TOC21" href="#SEC21">FINDING ALL POSSIBLE MATCHES</a>
+<li><a name="TOC22" href="#SEC22">OBTAINING AN ESTIMATE OF STACK USAGE</a>
+<li><a name="TOC23" href="#SEC23">MATCHING A PATTERN: THE ALTERNATIVE FUNCTION</a>
+<li><a name="TOC24" href="#SEC24">SEE ALSO</a>
+<li><a name="TOC25" href="#SEC25">AUTHOR</a>
+<li><a name="TOC26" href="#SEC26">REVISION</a>
+</ul>
+<P>
+<b>#include &#60;pcre.h&#62;</b>
+</P>
+<br><a name="SEC1" href="#TOC1">PCRE NATIVE API BASIC FUNCTIONS</a><br>
+<P>
+<b>pcre *pcre_compile(const char *<i>pattern</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<P>
+<b>pcre *pcre_compile2(const char *<i>pattern</i>, int <i>options</i>,</b>
+<b>int *<i>errorcodeptr</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<P>
+<b>pcre_extra *pcre_study(const pcre *<i>code</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>);</b>
+</P>
+<P>
+<b>void pcre_free_study(pcre_extra *<i>extra</i>);</b>
+</P>
+<P>
+<b>int pcre_exec(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>const char *<i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>);</b>
+</P>
+<P>
+<b>int pcre_dfa_exec(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>const char *<i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>,</b>
+<b>int *<i>workspace</i>, int <i>wscount</i>);</b>
+</P>
+<br><a name="SEC2" href="#TOC1">PCRE NATIVE API STRING EXTRACTION FUNCTIONS</a><br>
+<P>
+<b>int pcre_copy_named_substring(const pcre *<i>code</i>,</b>
+<b>const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, const char *<i>stringname</i>,</b>
+<b>char *<i>buffer</i>, int <i>buffersize</i>);</b>
+</P>
+<P>
+<b>int pcre_copy_substring(const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>, char *<i>buffer</i>,</b>
+<b>int <i>buffersize</i>);</b>
+</P>
+<P>
+<b>int pcre_get_named_substring(const pcre *<i>code</i>,</b>
+<b>const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, const char *<i>stringname</i>,</b>
+<b>const char **<i>stringptr</i>);</b>
+</P>
+<P>
+<b>int pcre_get_stringnumber(const pcre *<i>code</i>,</b>
+<b>const char *<i>name</i>);</b>
+</P>
+<P>
+<b>int pcre_get_stringtable_entries(const pcre *<i>code</i>,</b>
+<b>const char *<i>name</i>, char **<i>first</i>, char **<i>last</i>);</b>
+</P>
+<P>
+<b>int pcre_get_substring(const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>,</b>
+<b>const char **<i>stringptr</i>);</b>
+</P>
+<P>
+<b>int pcre_get_substring_list(const char *<i>subject</i>,</b>
+<b>int *<i>ovector</i>, int <i>stringcount</i>, const char ***<i>listptr</i>);</b>
+</P>
+<P>
+<b>void pcre_free_substring(const char *<i>stringptr</i>);</b>
+</P>
+<P>
+<b>void pcre_free_substring_list(const char **<i>stringptr</i>);</b>
+</P>
+<br><a name="SEC3" href="#TOC1">PCRE NATIVE API AUXILIARY FUNCTIONS</a><br>
+<P>
+<b>pcre_jit_stack *pcre_jit_stack_alloc(int <i>startsize</i>, int <i>maxsize</i>);</b>
+</P>
+<P>
+<b>void pcre_jit_stack_free(pcre_jit_stack *<i>stack</i>);</b>
+</P>
+<P>
+<b>void pcre_assign_jit_stack(pcre_extra *<i>extra</i>,</b>
+<b>pcre_jit_callback <i>callback</i>, void *<i>data</i>);</b>
+</P>
+<P>
+<b>const unsigned char *pcre_maketables(void);</b>
+</P>
+<P>
+<b>int pcre_fullinfo(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<P>
+<b>int pcre_refcount(pcre *<i>code</i>, int <i>adjust</i>);</b>
+</P>
+<P>
+<b>int pcre_config(int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<P>
+<b>const char *pcre_version(void);</b>
+</P>
+<P>
+<b>int pcre_pattern_to_host_byte_order(pcre *<i>code</i>,</b>
+<b>pcre_extra *<i>extra</i>, const unsigned char *<i>tables</i>);</b>
+</P>
+<br><a name="SEC4" href="#TOC1">PCRE NATIVE API INDIRECTED FUNCTIONS</a><br>
+<P>
+<b>void *(*pcre_malloc)(size_t);</b>
+</P>
+<P>
+<b>void (*pcre_free)(void *);</b>
+</P>
+<P>
+<b>void *(*pcre_stack_malloc)(size_t);</b>
+</P>
+<P>
+<b>void (*pcre_stack_free)(void *);</b>
+</P>
+<P>
+<b>int (*pcre_callout)(pcre_callout_block *);</b>
+</P>
+<br><a name="SEC5" href="#TOC1">PCRE 8-BIT AND 16-BIT LIBRARIES</a><br>
+<P>
+From release 8.30, PCRE can be compiled as a library for handling 16-bit
+character strings as well as, or instead of, the original library that handles
+8-bit character strings. To avoid too much complication, this document
+describes the 8-bit versions of the functions, with only occasional references
+to the 16-bit library.
+</P>
+<P>
+The 16-bit functions operate in the same way as their 8-bit counterparts; they
+just use different data types for their arguments and results, and their names
+start with <b>pcre16_</b> instead of <b>pcre_</b>. For every option that has UTF8
+in its name (for example, PCRE_UTF8), there is a corresponding 16-bit name with
+UTF8 replaced by UTF16. This facility is in fact just cosmetic; the 16-bit
+option names define the same bit values.
+</P>
+<P>
+References to bytes and UTF-8 in this document should be read as references to
+16-bit data quantities and UTF-16 when using the 16-bit library, unless
+specified otherwise. More details of the specific differences for the 16-bit
+library are given in the
+<a href="pcre16.html"><b>pcre16</b></a>
+page.
+</P>
+<br><a name="SEC6" href="#TOC1">PCRE API OVERVIEW</a><br>
+<P>
+PCRE has its own native API, which is described in this document. There are
+also some wrapper functions (for the 8-bit library only) that correspond to the
+POSIX regular expression API, but they do not give access to all the
+functionality. They are described in the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+documentation. Both of these APIs define a set of C function calls. A C++
+wrapper (again for the 8-bit library only) is also distributed with PCRE. It is
+documented in the
+<a href="pcrecpp.html"><b>pcrecpp</b></a>
+page.
+</P>
+<P>
+The native API C function prototypes are defined in the header file
+<b>pcre.h</b>, and on Unix-like systems the (8-bit) library itself is called
+<b>libpcre</b>. It can normally be accessed by adding <b>-lpcre</b> to the
+command for linking an application that uses PCRE. The header file defines the
+macros PCRE_MAJOR and PCRE_MINOR to contain the major and minor release numbers
+for the library. Applications can use these to include support for different
+releases of PCRE.
+</P>
+<P>
+In a Windows environment, if you want to statically link an application program
+against a non-dll <b>pcre.a</b> file, you must define PCRE_STATIC before
+including <b>pcre.h</b> or <b>pcrecpp.h</b>, because otherwise the
+<b>pcre_malloc()</b> and <b>pcre_free()</b> exported functions will be declared
+<b>__declspec(dllimport)</b>, with unwanted results.
+</P>
+<P>
+The functions <b>pcre_compile()</b>, <b>pcre_compile2()</b>, <b>pcre_study()</b>,
+and <b>pcre_exec()</b> are used for compiling and matching regular expressions
+in a Perl-compatible manner. A sample program that demonstrates the simplest
+way of using them is provided in the file called <i>pcredemo.c</i> in the PCRE
+source distribution. A listing of this program is given in the
+<a href="pcredemo.html"><b>pcredemo</b></a>
+documentation, and the
+<a href="pcresample.html"><b>pcresample</b></a>
+documentation describes how to compile and run it.
+</P>
+<P>
+Just-in-time compiler support is an optional feature of PCRE that can be built
+in appropriate hardware environments. It greatly speeds up the matching
+performance of many patterns. Simple programs can easily request that it be
+used if available, by setting an option that is ignored when it is not
+relevant. More complicated programs might need to make use of the functions
+<b>pcre_jit_stack_alloc()</b>, <b>pcre_jit_stack_free()</b>, and
+<b>pcre_assign_jit_stack()</b> in order to control the JIT code's memory usage.
+These functions are discussed in the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation.
+</P>
+<P>
+A second matching function, <b>pcre_dfa_exec()</b>, which is not
+Perl-compatible, is also provided. This uses a different algorithm for the
+matching. The alternative algorithm finds all possible matches (at a given
+point in the subject), and scans the subject just once (unless there are
+lookbehind assertions). However, this algorithm does not return captured
+substrings. A description of the two matching algorithms and their advantages
+and disadvantages is given in the
+<a href="pcrematching.html"><b>pcrematching</b></a>
+documentation.
+</P>
+<P>
+In addition to the main compiling and matching functions, there are convenience
+functions for extracting captured substrings from a subject string that is
+matched by <b>pcre_exec()</b>. They are:
+<pre>
+  <b>pcre_copy_substring()</b>
+  <b>pcre_copy_named_substring()</b>
+  <b>pcre_get_substring()</b>
+  <b>pcre_get_named_substring()</b>
+  <b>pcre_get_substring_list()</b>
+  <b>pcre_get_stringnumber()</b>
+  <b>pcre_get_stringtable_entries()</b>
+</pre>
+<b>pcre_free_substring()</b> and <b>pcre_free_substring_list()</b> are also
+provided, to free the memory used for extracted strings.
+</P>
+<P>
+The function <b>pcre_maketables()</b> is used to build a set of character tables
+in the current locale for passing to <b>pcre_compile()</b>, <b>pcre_exec()</b>,
+or <b>pcre_dfa_exec()</b>. This is an optional facility that is provided for
+specialist use. Most commonly, no special tables are passed, in which case
+internal tables that are generated when PCRE is built are used.
+</P>
+<P>
+The function <b>pcre_fullinfo()</b> is used to find out information about a
+compiled pattern. The function <b>pcre_version()</b> returns a pointer to a
+string containing the version of PCRE and its date of release.
+</P>
+<P>
+The function <b>pcre_refcount()</b> maintains a reference count in a data block
+containing a compiled pattern. This is provided for the benefit of
+object-oriented applications.
+</P>
+<P>
+The global variables <b>pcre_malloc</b> and <b>pcre_free</b> initially contain
+the entry points of the standard <b>malloc()</b> and <b>free()</b> functions,
+respectively. PCRE calls the memory management functions via these variables,
+so a calling program can replace them if it wishes to intercept the calls. This
+should be done before calling any PCRE functions.
+</P>
+<P>
+The global variables <b>pcre_stack_malloc</b> and <b>pcre_stack_free</b> are also
+indirections to memory management functions. These special functions are used
+only when PCRE is compiled to use the heap for remembering data, instead of
+recursive function calls, when running the <b>pcre_exec()</b> function. See the
+<a href="pcrebuild.html"><b>pcrebuild</b></a>
+documentation for details of how to do this. It is a non-standard way of
+building PCRE, for use in environments that have limited stacks. Because of the
+greater use of memory management, it runs more slowly. Separate functions are
+provided so that special-purpose external code can be used for this case. When
+used, these functions are always called in a stack-like manner (last obtained,
+first freed), and always for memory blocks of the same size. There is a
+discussion about PCRE's stack usage in the
+<a href="pcrestack.html"><b>pcrestack</b></a>
+documentation.
+</P>
+<P>
+The global variable <b>pcre_callout</b> initially contains NULL. It can be set
+by the caller to a "callout" function, which PCRE will then call at specified
+points during a matching operation. Details are given in the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation.
+<a name="newlines"></a></P>
+<br><a name="SEC7" href="#TOC1">NEWLINES</a><br>
+<P>
+PCRE supports five different conventions for indicating line breaks in
+strings: a single CR (carriage return) character, a single LF (linefeed)
+character, the two-character sequence CRLF, any of the three preceding, or any
+Unicode newline sequence. The Unicode newline sequences are the three just
+mentioned, plus the single characters VT (vertical tab, U+000B), FF (form feed,
+U+000C), NEL (next line, U+0085), LS (line separator, U+2028), and PS
+(paragraph separator, U+2029).
+</P>
+<P>
+Each of the first three conventions is used by at least one operating system as
+its standard newline sequence. When PCRE is built, a default can be specified.
+The default default is LF, which is the Unix standard. When PCRE is run, the
+default can be overridden, either when a pattern is compiled, or when it is
+matched.
+</P>
+<P>
+At compile time, the newline convention can be specified by the <i>options</i>
+argument of <b>pcre_compile()</b>, or it can be specified by special text at the
+start of the pattern itself; this overrides any other settings. See the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+page for details of the special character sequences.
+</P>
+<P>
+In the PCRE documentation the word "newline" is used to mean "the character or
+pair of characters that indicate a line break". The choice of newline
+convention affects the handling of the dot, circumflex, and dollar
+metacharacters, the handling of #-comments in /x mode, and, when CRLF is a
+recognized line ending sequence, the match position advancement for a
+non-anchored pattern. There is more detail about this in the
+<a href="#execoptions">section on <b>pcre_exec()</b> options</a>
+below.
+</P>
+<P>
+The choice of newline convention does not affect the interpretation of
+the \n or \r escape sequences, nor does it affect what \R matches, which is
+controlled in a similar way, but by separate options.
+</P>
+<br><a name="SEC8" href="#TOC1">MULTITHREADING</a><br>
+<P>
+The PCRE functions can be used in multi-threading applications, with the
+proviso that the memory management functions pointed to by <b>pcre_malloc</b>,
+<b>pcre_free</b>, <b>pcre_stack_malloc</b>, and <b>pcre_stack_free</b>, and the
+callout function pointed to by <b>pcre_callout</b>, are shared by all threads.
+</P>
+<P>
+The compiled form of a regular expression is not altered during matching, so
+the same compiled pattern can safely be used by several threads at once.
+</P>
+<P>
+If the just-in-time optimization feature is being used, it needs separate
+memory stack areas for each thread. See the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation for more details.
+</P>
+<br><a name="SEC9" href="#TOC1">SAVING PRECOMPILED PATTERNS FOR LATER USE</a><br>
+<P>
+The compiled form of a regular expression can be saved and re-used at a later
+time, possibly by a different program, and even on a host other than the one on
+which it was compiled. Details are given in the
+<a href="pcreprecompile.html"><b>pcreprecompile</b></a>
+documentation, which includes a description of the
+<b>pcre_pattern_to_host_byte_order()</b> function. However, compiling a regular
+expression with one version of PCRE for use with a different version is not
+guaranteed to work and may cause crashes.
+</P>
+<br><a name="SEC10" href="#TOC1">CHECKING BUILD-TIME OPTIONS</a><br>
+<P>
+<b>int pcre_config(int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<P>
+The function <b>pcre_config()</b> makes it possible for a PCRE client to
+discover which optional features have been compiled into the PCRE library. The
+<a href="pcrebuild.html"><b>pcrebuild</b></a>
+documentation has more details about these optional features.
+</P>
+<P>
+The first argument for <b>pcre_config()</b> is an integer, specifying which
+information is required; the second argument is a pointer to a variable into
+which the information is placed. The returned value is zero on success, or the
+negative error code PCRE_ERROR_BADOPTION if the value in the first argument is
+not recognized. The following information is available:
+<pre>
+  PCRE_CONFIG_UTF8
+</pre>
+The output is an integer that is set to one if UTF-8 support is available;
+otherwise it is set to zero. If this option is given to the 16-bit version of
+this function, <b>pcre16_config()</b>, the result is PCRE_ERROR_BADOPTION.
+<pre>
+  PCRE_CONFIG_UTF16
+</pre>
+The output is an integer that is set to one if UTF-16 support is available;
+otherwise it is set to zero. This value should normally be given to the 16-bit
+version of this function, <b>pcre16_config()</b>. If it is given to the 8-bit
+version of this function, the result is PCRE_ERROR_BADOPTION.
+<pre>
+  PCRE_CONFIG_UNICODE_PROPERTIES
+</pre>
+The output is an integer that is set to one if support for Unicode character
+properties is available; otherwise it is set to zero.
+<pre>
+  PCRE_CONFIG_JIT
+</pre>
+The output is an integer that is set to one if support for just-in-time
+compiling is available; otherwise it is set to zero.
+<pre>
+  PCRE_CONFIG_JITTARGET
+</pre>
+The output is a pointer to a zero-terminated "const char *" string. If JIT
+support is available, the string contains the name of the architecture for
+which the JIT compiler is configured, for example "x86 32bit (little endian +
+unaligned)". If JIT support is not available, the result is NULL.
+<pre>
+  PCRE_CONFIG_NEWLINE
+</pre>
+The output is an integer whose value specifies the default character sequence
+that is recognized as meaning "newline". The four values that are supported
+are: 10 for LF, 13 for CR, 3338 for CRLF, -2 for ANYCRLF, and -1 for ANY.
+Though they are derived from ASCII, the same values are returned in EBCDIC
+environments. The default should normally correspond to the standard sequence
+for your operating system.
+<pre>
+  PCRE_CONFIG_BSR
+</pre>
+The output is an integer whose value indicates what character sequences the \R
+escape sequence matches by default. A value of 0 means that \R matches any
+Unicode line ending sequence; a value of 1 means that \R matches only CR, LF,
+or CRLF. The default can be overridden when a pattern is compiled or matched.
+<pre>
+  PCRE_CONFIG_LINK_SIZE
+</pre>
+The output is an integer that contains the number of bytes used for internal
+linkage in compiled regular expressions. For the 8-bit library, the value can
+be 2, 3, or 4. For the 16-bit library, the value is either 2 or 4 and is still
+a number of bytes. The default value of 2 is sufficient for all but the most
+massive patterns, since it allows the compiled pattern to be up to 64K in size.
+Larger values allow larger regular expressions to be compiled, at the expense
+of slower matching.
+<pre>
+  PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
+</pre>
+The output is an integer that contains the threshold above which the POSIX
+interface uses <b>malloc()</b> for output vectors. Further details are given in
+the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+documentation.
+<pre>
+  PCRE_CONFIG_MATCH_LIMIT
+</pre>
+The output is a long integer that gives the default limit for the number of
+internal matching function calls in a <b>pcre_exec()</b> execution. Further
+details are given with <b>pcre_exec()</b> below.
+<pre>
+  PCRE_CONFIG_MATCH_LIMIT_RECURSION
+</pre>
+The output is a long integer that gives the default limit for the depth of
+recursion when calling the internal matching function in a <b>pcre_exec()</b>
+execution. Further details are given with <b>pcre_exec()</b> below.
+<pre>
+  PCRE_CONFIG_STACKRECURSE
+</pre>
+The output is an integer that is set to one if internal recursion when running
+<b>pcre_exec()</b> is implemented by recursive function calls that use the stack
+to remember their state. This is the usual way that PCRE is compiled. The
+output is zero if PCRE was compiled to use blocks of data on the heap instead
+of recursive function calls. In this case, <b>pcre_stack_malloc</b> and
+<b>pcre_stack_free</b> are called to manage memory blocks on the heap, thus
+avoiding the use of the stack.
+</P>
+<br><a name="SEC11" href="#TOC1">COMPILING A PATTERN</a><br>
+<P>
+<b>pcre *pcre_compile(const char *<i>pattern</i>, int <i>options</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+<b>pcre *pcre_compile2(const char *<i>pattern</i>, int <i>options</i>,</b>
+<b>int *<i>errorcodeptr</i>,</b>
+<b>const char **<i>errptr</i>, int *<i>erroffset</i>,</b>
+<b>const unsigned char *<i>tableptr</i>);</b>
+</P>
+<P>
+Either of the functions <b>pcre_compile()</b> or <b>pcre_compile2()</b> can be
+called to compile a pattern into an internal form. The only difference between
+the two interfaces is that <b>pcre_compile2()</b> has an additional argument,
+<i>errorcodeptr</i>, via which a numerical error code can be returned. To avoid
+too much repetition, we refer just to <b>pcre_compile()</b> below, but the
+information applies equally to <b>pcre_compile2()</b>.
+</P>
+<P>
+The pattern is a C string terminated by a binary zero, and is passed in the
+<i>pattern</i> argument. A pointer to a single block of memory that is obtained
+via <b>pcre_malloc</b> is returned. This contains the compiled code and related
+data. The <b>pcre</b> type is defined for the returned block; this is a typedef
+for a structure whose contents are not externally defined. It is up to the
+caller to free the memory (via <b>pcre_free</b>) when it is no longer required.
+</P>
+<P>
+Although the compiled code of a PCRE regex is relocatable, that is, it does not
+depend on memory location, the complete <b>pcre</b> data block is not
+fully relocatable, because it may contain a copy of the <i>tableptr</i>
+argument, which is an address (see below).
+</P>
+<P>
+The <i>options</i> argument contains various bit settings that affect the
+compilation. It should be zero if no options are required. The available
+options are described below. Some of them (in particular, those that are
+compatible with Perl, but some others as well) can also be set and unset from
+within the pattern (see the detailed description in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation). For those options that can be different in different parts of
+the pattern, the contents of the <i>options</i> argument specifies their
+settings at the start of compilation and execution. The PCRE_ANCHORED,
+PCRE_BSR_<i>xxx</i>, PCRE_NEWLINE_<i>xxx</i>, PCRE_NO_UTF8_CHECK, and
+PCRE_NO_START_OPTIMIZE options can be set at the time of matching as well as at
+compile time.
+</P>
+<P>
+If <i>errptr</i> is NULL, <b>pcre_compile()</b> returns NULL immediately.
+Otherwise, if compilation of a pattern fails, <b>pcre_compile()</b> returns
+NULL, and sets the variable pointed to by <i>errptr</i> to point to a textual
+error message. This is a static string that is part of the library. You must
+not try to free it. Normally, the offset from the start of the pattern to the
+byte that was being processed when the error was discovered is placed in the
+variable pointed to by <i>erroffset</i>, which must not be NULL (if it is, an
+immediate error is given). However, for an invalid UTF-8 string, the offset is
+that of the first byte of the failing character.
+</P>
+<P>
+Some errors are not detected until the whole pattern has been scanned; in these
+cases, the offset passed back is the length of the pattern. Note that the
+offset is in bytes, not characters, even in UTF-8 mode. It may sometimes point
+into the middle of a UTF-8 character.
+</P>
+<P>
+If <b>pcre_compile2()</b> is used instead of <b>pcre_compile()</b>, and the
+<i>errorcodeptr</i> argument is not NULL, a non-zero error code number is
+returned via this argument in the event of an error. This is in addition to the
+textual error message. Error codes and messages are listed below.
+</P>
+<P>
+If the final argument, <i>tableptr</i>, is NULL, PCRE uses a default set of
+character tables that are built when PCRE is compiled, using the default C
+locale. Otherwise, <i>tableptr</i> must be an address that is the result of a
+call to <b>pcre_maketables()</b>. This value is stored with the compiled
+pattern, and used again by <b>pcre_exec()</b>, unless another table pointer is
+passed to it. For more discussion, see the section on locale support below.
+</P>
+<P>
+This code fragment shows a typical straightforward call to <b>pcre_compile()</b>:
+<pre>
+  pcre *re;
+  const char *error;
+  int erroffset;
+  re = pcre_compile(
+    "^A.*Z",          /* the pattern */
+    0,                /* default options */
+    &error,           /* for error message */
+    &erroffset,       /* for error offset */
+    NULL);            /* use default character tables */
+</pre>
+The following names for option bits are defined in the <b>pcre.h</b> header
+file:
+<pre>
+  PCRE_ANCHORED
+</pre>
+If this bit is set, the pattern is forced to be "anchored", that is, it is
+constrained to match only at the first matching point in the string that is
+being searched (the "subject string"). This effect can also be achieved by
+appropriate constructs in the pattern itself, which is the only way to do it in
+Perl.
+<pre>
+  PCRE_AUTO_CALLOUT
+</pre>
+If this bit is set, <b>pcre_compile()</b> automatically inserts callout items,
+all with number 255, before each pattern item. For discussion of the callout
+facility, see the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation.
+<pre>
+  PCRE_BSR_ANYCRLF
+  PCRE_BSR_UNICODE
+</pre>
+These options (which are mutually exclusive) control what the \R escape
+sequence matches. The choice is either to match only CR, LF, or CRLF, or to
+match any Unicode newline sequence. The default is specified when PCRE is
+built. It can be overridden from within the pattern, or by setting an option
+when a compiled pattern is matched.
+<pre>
+  PCRE_CASELESS
+</pre>
+If this bit is set, letters in the pattern match both upper and lower case
+letters. It is equivalent to Perl's /i option, and it can be changed within a
+pattern by a (?i) option setting. In UTF-8 mode, PCRE always understands the
+concept of case for characters whose values are less than 128, so caseless
+matching is always possible. For characters with higher values, the concept of
+case is supported if PCRE is compiled with Unicode property support, but not
+otherwise. If you want to use caseless matching for characters 128 and above,
+you must ensure that PCRE is compiled with Unicode property support as well as
+with UTF-8 support.
+<pre>
+  PCRE_DOLLAR_ENDONLY
+</pre>
+If this bit is set, a dollar metacharacter in the pattern matches only at the
+end of the subject string. Without this option, a dollar also matches
+immediately before a newline at the end of the string (but not before any other
+newlines). The PCRE_DOLLAR_ENDONLY option is ignored if PCRE_MULTILINE is set.
+There is no equivalent to this option in Perl, and no way to set it within a
+pattern.
+<pre>
+  PCRE_DOTALL
+</pre>
+If this bit is set, a dot metacharacter in the pattern matches a character of
+any value, including one that indicates a newline. However, it only ever
+matches one character, even if newlines are coded as CRLF. Without this option,
+a dot does not match when the current position is at a newline. This option is
+equivalent to Perl's /s option, and it can be changed within a pattern by a
+(?s) option setting. A negative class such as [^a] always matches newline
+characters, independent of the setting of this option.
+<pre>
+  PCRE_DUPNAMES
+</pre>
+If this bit is set, names used to identify capturing subpatterns need not be
+unique. This can be helpful for certain types of pattern when it is known that
+only one instance of the named subpattern can ever be matched. There are more
+details of named subpatterns below; see also the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation.
+<pre>
+  PCRE_EXTENDED
+</pre>
+If this bit is set, white space data characters in the pattern are totally
+ignored except when escaped or inside a character class. White space does not
+include the VT character (code 11). In addition, characters between an
+unescaped # outside a character class and the next newline, inclusive, are also
+ignored. This is equivalent to Perl's /x option, and it can be changed within a
+pattern by a (?x) option setting.
+</P>
+<P>
+Which characters are interpreted as newlines is controlled by the options
+passed to <b>pcre_compile()</b> or by a special sequence at the start of the
+pattern, as described in the section entitled
+<a href="pcrepattern.html#newlines">"Newline conventions"</a>
+in the <b>pcrepattern</b> documentation. Note that the end of this type of
+comment is a literal newline sequence in the pattern; escape sequences that
+happen to represent a newline do not count.
+</P>
+<P>
+This option makes it possible to include comments inside complicated patterns.
+Note, however, that this applies only to data characters. White space characters
+may never appear within special character sequences in a pattern, for example
+within the sequence (?( that introduces a conditional subpattern.
+<pre>
+  PCRE_EXTRA
+</pre>
+This option was invented in order to turn on additional functionality of PCRE
+that is incompatible with Perl, but it is currently of very little use. When
+set, any backslash in a pattern that is followed by a letter that has no
+special meaning causes an error, thus reserving these combinations for future
+expansion. By default, as in Perl, a backslash followed by a letter with no
+special meaning is treated as a literal. (Perl can, however, be persuaded to
+give an error for this, by running it with the -w option.) There are at present
+no other features controlled by this option. It can also be set by a (?X)
+option setting within a pattern.
+<pre>
+  PCRE_FIRSTLINE
+</pre>
+If this option is set, an unanchored pattern is required to match before or at
+the first newline in the subject string, though the matched text may continue
+over the newline.
+<pre>
+  PCRE_JAVASCRIPT_COMPAT
+</pre>
+If this option is set, PCRE's behaviour is changed in some ways so that it is
+compatible with JavaScript rather than Perl. The changes are as follows:
+</P>
+<P>
+(1) A lone closing square bracket in a pattern causes a compile-time error,
+because this is illegal in JavaScript (by default it is treated as a data
+character). Thus, the pattern AB]CD becomes illegal when this option is set.
+</P>
+<P>
+(2) At run time, a back reference to an unset subpattern group matches an empty
+string (by default this causes the current matching alternative to fail). A
+pattern such as (\1)(a) succeeds when this option is set (assuming it can find
+an "a" in the subject), whereas it fails by default, for Perl compatibility.
+</P>
+<P>
+(3) \U matches an upper case "U" character; by default \U causes a compile
+time error (Perl uses \U to upper case subsequent characters).
+</P>
+<P>
+(4) \u matches a lower case "u" character unless it is followed by four
+hexadecimal digits, in which case the hexadecimal number defines the code point
+to match. By default, \u causes a compile time error (Perl uses it to upper
+case the following character).
+</P>
+<P>
+(5) \x matches a lower case "x" character unless it is followed by two
+hexadecimal digits, in which case the hexadecimal number defines the code point
+to match. By default, as in Perl, a hexadecimal number is always expected after
+\x, but it may have zero, one, or two digits (so, for example, \xz matches a
+binary zero character followed by z).
+<pre>
+  PCRE_MULTILINE
+</pre>
+By default, PCRE treats the subject string as consisting of a single line of
+characters (even if it actually contains newlines). The "start of line"
+metacharacter (^) matches only at the start of the string, while the "end of
+line" metacharacter ($) matches only at the end of the string, or before a
+terminating newline (unless PCRE_DOLLAR_ENDONLY is set). This is the same as
+Perl.
+</P>
+<P>
+When PCRE_MULTILINE it is set, the "start of line" and "end of line" constructs
+match immediately following or immediately before internal newlines in the
+subject string, respectively, as well as at the very start and end. This is
+equivalent to Perl's /m option, and it can be changed within a pattern by a
+(?m) option setting. If there are no newlines in a subject string, or no
+occurrences of ^ or $ in a pattern, setting PCRE_MULTILINE has no effect.
+<pre>
+  PCRE_NEWLINE_CR
+  PCRE_NEWLINE_LF
+  PCRE_NEWLINE_CRLF
+  PCRE_NEWLINE_ANYCRLF
+  PCRE_NEWLINE_ANY
+</pre>
+These options override the default newline definition that was chosen when PCRE
+was built. Setting the first or the second specifies that a newline is
+indicated by a single character (CR or LF, respectively). Setting
+PCRE_NEWLINE_CRLF specifies that a newline is indicated by the two-character
+CRLF sequence. Setting PCRE_NEWLINE_ANYCRLF specifies that any of the three
+preceding sequences should be recognized. Setting PCRE_NEWLINE_ANY specifies
+that any Unicode newline sequence should be recognized. The Unicode newline
+sequences are the three just mentioned, plus the single characters VT (vertical
+tab, U+000B), FF (form feed, U+000C), NEL (next line, U+0085), LS (line
+separator, U+2028), and PS (paragraph separator, U+2029). For the 8-bit
+library, the last two are recognized only in UTF-8 mode.
+</P>
+<P>
+The newline setting in the options word uses three bits that are treated
+as a number, giving eight possibilities. Currently only six are used (default
+plus the five values above). This means that if you set more than one newline
+option, the combination may or may not be sensible. For example,
+PCRE_NEWLINE_CR with PCRE_NEWLINE_LF is equivalent to PCRE_NEWLINE_CRLF, but
+other combinations may yield unused numbers and cause an error.
+</P>
+<P>
+The only time that a line break in a pattern is specially recognized when
+compiling is when PCRE_EXTENDED is set. CR and LF are white space characters,
+and so are ignored in this mode. Also, an unescaped # outside a character class
+indicates a comment that lasts until after the next line break sequence. In
+other circumstances, line break sequences in patterns are treated as literal
+data.
+</P>
+<P>
+The newline option that is set at compile time becomes the default that is used
+for <b>pcre_exec()</b> and <b>pcre_dfa_exec()</b>, but it can be overridden.
+<pre>
+  PCRE_NO_AUTO_CAPTURE
+</pre>
+If this option is set, it disables the use of numbered capturing parentheses in
+the pattern. Any opening parenthesis that is not followed by ? behaves as if it
+were followed by ?: but named parentheses can still be used for capturing (and
+they acquire numbers in the usual way). There is no equivalent of this option
+in Perl.
+<pre>
+  NO_START_OPTIMIZE
+</pre>
+This is an option that acts at matching time; that is, it is really an option
+for <b>pcre_exec()</b> or <b>pcre_dfa_exec()</b>. If it is set at compile time,
+it is remembered with the compiled pattern and assumed at matching time. For
+details see the discussion of PCRE_NO_START_OPTIMIZE
+<a href="#execoptions">below.</a>
+<pre>
+  PCRE_UCP
+</pre>
+This option changes the way PCRE processes \B, \b, \D, \d, \S, \s, \W,
+\w, and some of the POSIX character classes. By default, only ASCII characters
+are recognized, but if PCRE_UCP is set, Unicode properties are used instead to
+classify characters. More details are given in the section on
+<a href="pcre.html#genericchartypes">generic character types</a>
+in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+page. If you set PCRE_UCP, matching one of the items it affects takes much
+longer. The option is available only if PCRE has been compiled with Unicode
+property support.
+<pre>
+  PCRE_UNGREEDY
+</pre>
+This option inverts the "greediness" of the quantifiers so that they are not
+greedy by default, but become greedy if followed by "?". It is not compatible
+with Perl. It can also be set by a (?U) option setting within the pattern.
+<pre>
+  PCRE_UTF8
+</pre>
+This option causes PCRE to regard both the pattern and the subject as strings
+of UTF-8 characters instead of single-byte strings. However, it is available
+only when PCRE is built to include UTF support. If not, the use of this option
+provokes an error. Details of how this option changes the behaviour of PCRE are
+given in the
+<a href="pcreunicode.html"><b>pcreunicode</b></a>
+page.
+<pre>
+  PCRE_NO_UTF8_CHECK
+</pre>
+When PCRE_UTF8 is set, the validity of the pattern as a UTF-8
+string is automatically checked. There is a discussion about the
+<a href="pcreunicode.html#utf8strings">validity of UTF-8 strings</a>
+in the
+<a href="pcreunicode.html"><b>pcreunicode</b></a>
+page. If an invalid UTF-8 sequence is found, <b>pcre_compile()</b> returns an
+error. If you already know that your pattern is valid, and you want to skip
+this check for performance reasons, you can set the PCRE_NO_UTF8_CHECK option.
+When it is set, the effect of passing an invalid UTF-8 string as a pattern is
+undefined. It may cause your program to crash. Note that this option can also
+be passed to <b>pcre_exec()</b> and <b>pcre_dfa_exec()</b>, to suppress the
+validity checking of subject strings.
+</P>
+<br><a name="SEC12" href="#TOC1">COMPILATION ERROR CODES</a><br>
+<P>
+The following table lists the error codes than may be returned by
+<b>pcre_compile2()</b>, along with the error messages that may be returned by
+both compiling functions. Note that error messages are always 8-bit ASCII
+strings, even in 16-bit mode. As PCRE has developed, some error codes have
+fallen out of use. To avoid confusion, they have not been re-used.
+<pre>
+   0  no error
+   1  \ at end of pattern
+   2  \c at end of pattern
+   3  unrecognized character follows \
+   4  numbers out of order in {} quantifier
+   5  number too big in {} quantifier
+   6  missing terminating ] for character class
+   7  invalid escape sequence in character class
+   8  range out of order in character class
+   9  nothing to repeat
+  10  [this code is not in use]
+  11  internal error: unexpected repeat
+  12  unrecognized character after (? or (?-
+  13  POSIX named classes are supported only within a class
+  14  missing )
+  15  reference to non-existent subpattern
+  16  erroffset passed as NULL
+  17  unknown option bit(s) set
+  18  missing ) after comment
+  19  [this code is not in use]
+  20  regular expression is too large
+  21  failed to get memory
+  22  unmatched parentheses
+  23  internal error: code overflow
+  24  unrecognized character after (?&#60;
+  25  lookbehind assertion is not fixed length
+  26  malformed number or name after (?(
+  27  conditional group contains more than two branches
+  28  assertion expected after (?(
+  29  (?R or (?[+-]digits must be followed by )
+  30  unknown POSIX class name
+  31  POSIX collating elements are not supported
+  32  this version of PCRE is compiled without UTF support
+  33  [this code is not in use]
+  34  character value in \x{...} sequence is too large
+  35  invalid condition (?(0)
+  36  \C not allowed in lookbehind assertion
+  37  PCRE does not support \L, \l, \N{name}, \U, or \u
+  38  number after (?C is &#62; 255
+  39  closing ) for (?C expected
+  40  recursive call could loop indefinitely
+  41  unrecognized character after (?P
+  42  syntax error in subpattern name (missing terminator)
+  43  two named subpatterns have the same name
+  44  invalid UTF-8 string (specifically UTF-8)
+  45  support for \P, \p, and \X has not been compiled
+  46  malformed \P or \p sequence
+  47  unknown property name after \P or \p
+  48  subpattern name is too long (maximum 32 characters)
+  49  too many named subpatterns (maximum 10000)
+  50  [this code is not in use]
+  51  octal value is greater than \377 in 8-bit non-UTF-8 mode
+  52  internal error: overran compiling workspace
+  53  internal error: previously-checked referenced subpattern
+        not found
+  54  DEFINE group contains more than one branch
+  55  repeating a DEFINE group is not allowed
+  56  inconsistent NEWLINE options
+  57  \g is not followed by a braced, angle-bracketed, or quoted
+        name/number or by a plain number
+  58  a numbered reference must not be zero
+  59  an argument is not allowed for (*ACCEPT), (*FAIL), or (*COMMIT)
+  60  (*VERB) not recognized
+  61  number is too big
+  62  subpattern name expected
+  63  digit expected after (?+
+  64  ] is an invalid data character in JavaScript compatibility mode
+  65  different names for subpatterns of the same number are
+        not allowed
+  66  (*MARK) must have an argument
+  67  this version of PCRE is not compiled with Unicode property
+        support
+  68  \c must be followed by an ASCII character
+  69  \k is not followed by a braced, angle-bracketed, or quoted name
+  70  internal error: unknown opcode in find_fixedlength()
+  71  \N is not supported in a class
+  72  too many forward references
+  73  disallowed Unicode code point (&#62;= 0xd800 && &#60;= 0xdfff)
+  74  invalid UTF-16 string (specifically UTF-16)
+  75  name is too long in (*MARK), (*PRUNE), (*SKIP), or (*THEN)
+  76  character value in \u.... sequence is too large
+</pre>
+The numbers 32 and 10000 in errors 48 and 49 are defaults; different values may
+be used if the limits were changed when PCRE was built.
+<a name="studyingapattern"></a></P>
+<br><a name="SEC13" href="#TOC1">STUDYING A PATTERN</a><br>
+<P>
+<b>pcre_extra *pcre_study(const pcre *<i>code</i>, int <i>options</i></b>
+<b>const char **<i>errptr</i>);</b>
+</P>
+<P>
+If a compiled pattern is going to be used several times, it is worth spending
+more time analyzing it in order to speed up the time taken for matching. The
+function <b>pcre_study()</b> takes a pointer to a compiled pattern as its first
+argument. If studying the pattern produces additional information that will
+help speed up matching, <b>pcre_study()</b> returns a pointer to a
+<b>pcre_extra</b> block, in which the <i>study_data</i> field points to the
+results of the study.
+</P>
+<P>
+The returned value from <b>pcre_study()</b> can be passed directly to
+<b>pcre_exec()</b> or <b>pcre_dfa_exec()</b>. However, a <b>pcre_extra</b> block
+also contains other fields that can be set by the caller before the block is
+passed; these are described
+<a href="#extradata">below</a>
+in the section on matching a pattern.
+</P>
+<P>
+If studying the pattern does not produce any useful information,
+<b>pcre_study()</b> returns NULL. In that circumstance, if the calling program
+wants to pass any of the other fields to <b>pcre_exec()</b> or
+<b>pcre_dfa_exec()</b>, it must set up its own <b>pcre_extra</b> block.
+</P>
+<P>
+The second argument of <b>pcre_study()</b> contains option bits. There are three
+options:
+<pre>
+  PCRE_STUDY_JIT_COMPILE
+  PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+  PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+</pre>
+If any of these are set, and the just-in-time compiler is available, the
+pattern is further compiled into machine code that executes much faster than
+the <b>pcre_exec()</b> interpretive matching function. If the just-in-time
+compiler is not available, these options are ignored. All other bits in the
+<i>options</i> argument must be zero.
+</P>
+<P>
+JIT compilation is a heavyweight optimization. It can take some time for
+patterns to be analyzed, and for one-off matches and simple patterns the
+benefit of faster execution might be offset by a much slower study time.
+Not all patterns can be optimized by the JIT compiler. For those that cannot be
+handled, matching automatically falls back to the <b>pcre_exec()</b>
+interpreter. For more details, see the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation.
+</P>
+<P>
+The third argument for <b>pcre_study()</b> is a pointer for an error message. If
+studying succeeds (even if no data is returned), the variable it points to is
+set to NULL. Otherwise it is set to point to a textual error message. This is a
+static string that is part of the library. You must not try to free it. You
+should test the error pointer for NULL after calling <b>pcre_study()</b>, to be
+sure that it has run successfully.
+</P>
+<P>
+When you are finished with a pattern, you can free the memory used for the
+study data by calling <b>pcre_free_study()</b>. This function was added to the
+API for release 8.20. For earlier versions, the memory could be freed with
+<b>pcre_free()</b>, just like the pattern itself. This will still work in cases
+where JIT optimization is not used, but it is advisable to change to the new
+function when convenient.
+</P>
+<P>
+This is a typical way in which <b>pcre_study</b>() is used (except that in a
+real application there should be tests for errors):
+<pre>
+  int rc;
+  pcre *re;
+  pcre_extra *sd;
+  re = pcre_compile("pattern", 0, &error, &erroroffset, NULL);
+  sd = pcre_study(
+    re,             /* result of pcre_compile() */
+    0,              /* no options */
+    &error);        /* set to NULL or points to a message */
+  rc = pcre_exec(   /* see below for details of pcre_exec() options */
+    re, sd, "subject", 7, 0, 0, ovector, 30);
+  ...
+  pcre_free_study(sd);
+  pcre_free(re);
+</pre>
+Studying a pattern does two things: first, a lower bound for the length of
+subject string that is needed to match the pattern is computed. This does not
+mean that there are any strings of that length that match, but it does
+guarantee that no shorter strings match. The value is used by
+<b>pcre_exec()</b> and <b>pcre_dfa_exec()</b> to avoid wasting time by trying to
+match strings that are shorter than the lower bound. You can find out the value
+in a calling program via the <b>pcre_fullinfo()</b> function.
+</P>
+<P>
+Studying a pattern is also useful for non-anchored patterns that do not have a
+single fixed starting character. A bitmap of possible starting bytes is
+created. This speeds up finding a position in the subject at which to start
+matching. (In 16-bit mode, the bitmap is used for 16-bit values less than 256.)
+</P>
+<P>
+These two optimizations apply to both <b>pcre_exec()</b> and
+<b>pcre_dfa_exec()</b>, and the information is also used by the JIT compiler.
+The optimizations can be disabled by setting the PCRE_NO_START_OPTIMIZE option
+when calling <b>pcre_exec()</b> or <b>pcre_dfa_exec()</b>, but if this is done,
+JIT execution is also disabled. You might want to do this if your pattern
+contains callouts or (*MARK) and you want to make use of these facilities in
+cases where matching fails. See the discussion of PCRE_NO_START_OPTIMIZE
+<a href="#execoptions">below.</a>
+<a name="localesupport"></a></P>
+<br><a name="SEC14" href="#TOC1">LOCALE SUPPORT</a><br>
+<P>
+PCRE handles caseless matching, and determines whether characters are letters,
+digits, or whatever, by reference to a set of tables, indexed by character
+value. When running in UTF-8 mode, this applies only to characters
+with codes less than 128. By default, higher-valued codes never match escapes
+such as \w or \d, but they can be tested with \p if PCRE is built with
+Unicode character property support. Alternatively, the PCRE_UCP option can be
+set at compile time; this causes \w and friends to use Unicode property
+support instead of built-in tables. The use of locales with Unicode is
+discouraged. If you are handling characters with codes greater than 128, you
+should either use UTF-8 and Unicode, or use locales, but not try to mix the
+two.
+</P>
+<P>
+PCRE contains an internal set of tables that are used when the final argument
+of <b>pcre_compile()</b> is NULL. These are sufficient for many applications.
+Normally, the internal tables recognize only ASCII characters. However, when
+PCRE is built, it is possible to cause the internal tables to be rebuilt in the
+default "C" locale of the local system, which may cause them to be different.
+</P>
+<P>
+The internal tables can always be overridden by tables supplied by the
+application that calls PCRE. These may be created in a different locale from
+the default. As more and more applications change to using Unicode, the need
+for this locale support is expected to die away.
+</P>
+<P>
+External tables are built by calling the <b>pcre_maketables()</b> function,
+which has no arguments, in the relevant locale. The result can then be passed
+to <b>pcre_compile()</b> or <b>pcre_exec()</b> as often as necessary. For
+example, to build and use tables that are appropriate for the French locale
+(where accented characters with values greater than 128 are treated as letters),
+the following code could be used:
+<pre>
+  setlocale(LC_CTYPE, "fr_FR");
+  tables = pcre_maketables();
+  re = pcre_compile(..., tables);
+</pre>
+The locale name "fr_FR" is used on Linux and other Unix-like systems; if you
+are using Windows, the name for the French locale is "french".
+</P>
+<P>
+When <b>pcre_maketables()</b> runs, the tables are built in memory that is
+obtained via <b>pcre_malloc</b>. It is the caller's responsibility to ensure
+that the memory containing the tables remains available for as long as it is
+needed.
+</P>
+<P>
+The pointer that is passed to <b>pcre_compile()</b> is saved with the compiled
+pattern, and the same tables are used via this pointer by <b>pcre_study()</b>
+and normally also by <b>pcre_exec()</b>. Thus, by default, for any single
+pattern, compilation, studying and matching all happen in the same locale, but
+different patterns can be compiled in different locales.
+</P>
+<P>
+It is possible to pass a table pointer or NULL (indicating the use of the
+internal tables) to <b>pcre_exec()</b>. Although not intended for this purpose,
+this facility could be used to match a pattern in a different locale from the
+one in which it was compiled. Passing table pointers at run time is discussed
+below in the section on matching a pattern.
+<a name="infoaboutpattern"></a></P>
+<br><a name="SEC15" href="#TOC1">INFORMATION ABOUT A PATTERN</a><br>
+<P>
+<b>int pcre_fullinfo(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>int <i>what</i>, void *<i>where</i>);</b>
+</P>
+<P>
+The <b>pcre_fullinfo()</b> function returns information about a compiled
+pattern. It replaces the <b>pcre_info()</b> function, which was removed from the
+library at version 8.30, after more than 10 years of obsolescence.
+</P>
+<P>
+The first argument for <b>pcre_fullinfo()</b> is a pointer to the compiled
+pattern. The second argument is the result of <b>pcre_study()</b>, or NULL if
+the pattern was not studied. The third argument specifies which piece of
+information is required, and the fourth argument is a pointer to a variable
+to receive the data. The yield of the function is zero for success, or one of
+the following negative numbers:
+<pre>
+  PCRE_ERROR_NULL           the argument <i>code</i> was NULL
+                            the argument <i>where</i> was NULL
+  PCRE_ERROR_BADMAGIC       the "magic number" was not found
+  PCRE_ERROR_BADENDIANNESS  the pattern was compiled with different
+                            endianness
+  PCRE_ERROR_BADOPTION      the value of <i>what</i> was invalid
+</pre>
+The "magic number" is placed at the start of each compiled pattern as an simple
+check against passing an arbitrary memory pointer. The endianness error can
+occur if a compiled pattern is saved and reloaded on a different host. Here is
+a typical call of <b>pcre_fullinfo()</b>, to obtain the length of the compiled
+pattern:
+<pre>
+  int rc;
+  size_t length;
+  rc = pcre_fullinfo(
+    re,               /* result of pcre_compile() */
+    sd,               /* result of pcre_study(), or NULL */
+    PCRE_INFO_SIZE,   /* what is required */
+    &length);         /* where to put the data */
+</pre>
+The possible values for the third argument are defined in <b>pcre.h</b>, and are
+as follows:
+<pre>
+  PCRE_INFO_BACKREFMAX
+</pre>
+Return the number of the highest back reference in the pattern. The fourth
+argument should point to an <b>int</b> variable. Zero is returned if there are
+no back references.
+<pre>
+  PCRE_INFO_CAPTURECOUNT
+</pre>
+Return the number of capturing subpatterns in the pattern. The fourth argument
+should point to an <b>int</b> variable.
+<pre>
+  PCRE_INFO_DEFAULT_TABLES
+</pre>
+Return a pointer to the internal default character tables within PCRE. The
+fourth argument should point to an <b>unsigned char *</b> variable. This
+information call is provided for internal use by the <b>pcre_study()</b>
+function. External callers can cause PCRE to use its internal tables by passing
+a NULL table pointer.
+<pre>
+  PCRE_INFO_FIRSTBYTE
+</pre>
+Return information about the first data unit of any matched string, for a
+non-anchored pattern. (The name of this option refers to the 8-bit library,
+where data units are bytes.) The fourth argument should point to an <b>int</b>
+variable.
+</P>
+<P>
+If there is a fixed first value, for example, the letter "c" from a pattern
+such as (cat|cow|coyote), its value is returned. In the 8-bit library, the
+value is always less than 256; in the 16-bit library the value can be up to
+0xffff.
+</P>
+<P>
+If there is no fixed first value, and if either
+<br>
+<br>
+(a) the pattern was compiled with the PCRE_MULTILINE option, and every branch
+starts with "^", or
+<br>
+<br>
+(b) every branch of the pattern starts with ".*" and PCRE_DOTALL is not set
+(if it were set, the pattern would be anchored),
+<br>
+<br>
+-1 is returned, indicating that the pattern matches only at the start of a
+subject string or after any newline within the string. Otherwise -2 is
+returned. For anchored patterns, -2 is returned.
+<pre>
+  PCRE_INFO_FIRSTTABLE
+</pre>
+If the pattern was studied, and this resulted in the construction of a 256-bit
+table indicating a fixed set of values for the first data unit in any matching
+string, a pointer to the table is returned. Otherwise NULL is returned. The
+fourth argument should point to an <b>unsigned char *</b> variable.
+<pre>
+  PCRE_INFO_HASCRORLF
+</pre>
+Return 1 if the pattern contains any explicit matches for CR or LF characters,
+otherwise 0. The fourth argument should point to an <b>int</b> variable. An
+explicit match is either a literal CR or LF character, or \r or \n.
+<pre>
+  PCRE_INFO_JCHANGED
+</pre>
+Return 1 if the (?J) or (?-J) option setting is used in the pattern, otherwise
+0. The fourth argument should point to an <b>int</b> variable. (?J) and
+(?-J) set and unset the local PCRE_DUPNAMES option, respectively.
+<pre>
+  PCRE_INFO_JIT
+</pre>
+Return 1 if the pattern was studied with one of the JIT options, and
+just-in-time compiling was successful. The fourth argument should point to an
+<b>int</b> variable. A return value of 0 means that JIT support is not available
+in this version of PCRE, or that the pattern was not studied with a JIT option,
+or that the JIT compiler could not handle this particular pattern. See the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation for details of what can and cannot be handled.
+<pre>
+  PCRE_INFO_JITSIZE
+</pre>
+If the pattern was successfully studied with a JIT option, return the size of
+the JIT compiled code, otherwise return zero. The fourth argument should point
+to a <b>size_t</b> variable.
+<pre>
+  PCRE_INFO_LASTLITERAL
+</pre>
+Return the value of the rightmost literal data unit that must exist in any
+matched string, other than at its start, if such a value has been recorded. The
+fourth argument should point to an <b>int</b> variable. If there is no such
+value, -1 is returned. For anchored patterns, a last literal value is recorded
+only if it follows something of variable length. For example, for the pattern
+/^a\d+z\d+/ the returned value is "z", but for /^a\dz\d/ the returned value
+is -1.
+<pre>
+  PCRE_INFO_MAXLOOKBEHIND
+</pre>
+Return the number of characters (NB not bytes) in the longest lookbehind
+assertion in the pattern. Note that the simple assertions \b and \B require a
+one-character lookbehind. This information is useful when doing multi-segment
+matching using the partial matching facilities.
+<pre>
+  PCRE_INFO_MINLENGTH
+</pre>
+If the pattern was studied and a minimum length for matching subject strings
+was computed, its value is returned. Otherwise the returned value is -1. The
+value is a number of characters, which in UTF-8 mode may be different from the
+number of bytes. The fourth argument should point to an <b>int</b> variable. A
+non-negative value is a lower bound to the length of any matching string. There
+may not be any strings of that length that do actually match, but every string
+that does match is at least that long.
+<pre>
+  PCRE_INFO_NAMECOUNT
+  PCRE_INFO_NAMEENTRYSIZE
+  PCRE_INFO_NAMETABLE
+</pre>
+PCRE supports the use of named as well as numbered capturing parentheses. The
+names are just an additional way of identifying the parentheses, which still
+acquire numbers. Several convenience functions such as
+<b>pcre_get_named_substring()</b> are provided for extracting captured
+substrings by name. It is also possible to extract the data directly, by first
+converting the name to a number in order to access the correct pointers in the
+output vector (described with <b>pcre_exec()</b> below). To do the conversion,
+you need to use the name-to-number map, which is described by these three
+values.
+</P>
+<P>
+The map consists of a number of fixed-size entries. PCRE_INFO_NAMECOUNT gives
+the number of entries, and PCRE_INFO_NAMEENTRYSIZE gives the size of each
+entry; both of these return an <b>int</b> value. The entry size depends on the
+length of the longest name. PCRE_INFO_NAMETABLE returns a pointer to the first
+entry of the table. This is a pointer to <b>char</b> in the 8-bit library, where
+the first two bytes of each entry are the number of the capturing parenthesis,
+most significant byte first. In the 16-bit library, the pointer points to
+16-bit data units, the first of which contains the parenthesis number. The rest
+of the entry is the corresponding name, zero terminated.
+</P>
+<P>
+The names are in alphabetical order. Duplicate names may appear if (?| is used
+to create multiple groups with the same number, as described in the
+<a href="pcrepattern.html#dupsubpatternnumber">section on duplicate subpattern numbers</a>
+in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+page. Duplicate names for subpatterns with different numbers are permitted only
+if PCRE_DUPNAMES is set. In all cases of duplicate names, they appear in the
+table in the order in which they were found in the pattern. In the absence of
+(?| this is the order of increasing number; when (?| is used this is not
+necessarily the case because later subpatterns may have lower numbers.
+</P>
+<P>
+As a simple example of the name/number table, consider the following pattern
+after compilation by the 8-bit library (assume PCRE_EXTENDED is set, so white
+space - including newlines - is ignored):
+<pre>
+  (?&#60;date&#62; (?&#60;year&#62;(\d\d)?\d\d) - (?&#60;month&#62;\d\d) - (?&#60;day&#62;\d\d) )
+</pre>
+There are four named subpatterns, so the table has four entries, and each entry
+in the table is eight bytes long. The table is as follows, with non-printing
+bytes shows in hexadecimal, and undefined bytes shown as ??:
+<pre>
+  00 01 d  a  t  e  00 ??
+  00 05 d  a  y  00 ?? ??
+  00 04 m  o  n  t  h  00
+  00 02 y  e  a  r  00 ??
+</pre>
+When writing code to extract data from named subpatterns using the
+name-to-number map, remember that the length of the entries is likely to be
+different for each compiled pattern.
+<pre>
+  PCRE_INFO_OKPARTIAL
+</pre>
+Return 1 if the pattern can be used for partial matching with
+<b>pcre_exec()</b>, otherwise 0. The fourth argument should point to an
+<b>int</b> variable. From release 8.00, this always returns 1, because the
+restrictions that previously applied to partial matching have been lifted. The
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+documentation gives details of partial matching.
+<pre>
+  PCRE_INFO_OPTIONS
+</pre>
+Return a copy of the options with which the pattern was compiled. The fourth
+argument should point to an <b>unsigned long int</b> variable. These option bits
+are those specified in the call to <b>pcre_compile()</b>, modified by any
+top-level option settings at the start of the pattern itself. In other words,
+they are the options that will be in force when matching starts. For example,
+if the pattern /(?im)abc(?-i)d/ is compiled with the PCRE_EXTENDED option, the
+result is PCRE_CASELESS, PCRE_MULTILINE, and PCRE_EXTENDED.
+</P>
+<P>
+A pattern is automatically anchored by PCRE if all of its top-level
+alternatives begin with one of the following:
+<pre>
+  ^     unless PCRE_MULTILINE is set
+  \A    always
+  \G    always
+  .*    if PCRE_DOTALL is set and there are no back references to the subpattern in which .* appears
+</pre>
+For such patterns, the PCRE_ANCHORED bit is set in the options returned by
+<b>pcre_fullinfo()</b>.
+<pre>
+  PCRE_INFO_SIZE
+</pre>
+Return the size of the compiled pattern in bytes (for both libraries). The
+fourth argument should point to a <b>size_t</b> variable. This value does not
+include the size of the <b>pcre</b> structure that is returned by
+<b>pcre_compile()</b>. The value that is passed as the argument to
+<b>pcre_malloc()</b> when <b>pcre_compile()</b> is getting memory in which to
+place the compiled data is the value returned by this option plus the size of
+the <b>pcre</b> structure. Studying a compiled pattern, with or without JIT,
+does not alter the value returned by this option.
+<pre>
+  PCRE_INFO_STUDYSIZE
+</pre>
+Return the size in bytes of the data block pointed to by the <i>study_data</i>
+field in a <b>pcre_extra</b> block. If <b>pcre_extra</b> is NULL, or there is no
+study data, zero is returned. The fourth argument should point to a
+<b>size_t</b> variable. The <i>study_data</i> field is set by <b>pcre_study()</b>
+to record information that will speed up matching (see the section entitled
+<a href="#studyingapattern">"Studying a pattern"</a>
+above). The format of the <i>study_data</i> block is private, but its length
+is made available via this option so that it can be saved and restored (see the
+<a href="pcreprecompile.html"><b>pcreprecompile</b></a>
+documentation for details).
+</P>
+<br><a name="SEC16" href="#TOC1">REFERENCE COUNTS</a><br>
+<P>
+<b>int pcre_refcount(pcre *<i>code</i>, int <i>adjust</i>);</b>
+</P>
+<P>
+The <b>pcre_refcount()</b> function is used to maintain a reference count in the
+data block that contains a compiled pattern. It is provided for the benefit of
+applications that operate in an object-oriented manner, where different parts
+of the application may be using the same compiled pattern, but you want to free
+the block when they are all done.
+</P>
+<P>
+When a pattern is compiled, the reference count field is initialized to zero.
+It is changed only by calling this function, whose action is to add the
+<i>adjust</i> value (which may be positive or negative) to it. The yield of the
+function is the new value. However, the value of the count is constrained to
+lie between 0 and 65535, inclusive. If the new value is outside these limits,
+it is forced to the appropriate limit value.
+</P>
+<P>
+Except when it is zero, the reference count is not correctly preserved if a
+pattern is compiled on one host and then transferred to a host whose byte-order
+is different. (This seems a highly unlikely scenario.)
+</P>
+<br><a name="SEC17" href="#TOC1">MATCHING A PATTERN: THE TRADITIONAL FUNCTION</a><br>
+<P>
+<b>int pcre_exec(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>const char *<i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>);</b>
+</P>
+<P>
+The function <b>pcre_exec()</b> is called to match a subject string against a
+compiled pattern, which is passed in the <i>code</i> argument. If the
+pattern was studied, the result of the study should be passed in the
+<i>extra</i> argument. You can call <b>pcre_exec()</b> with the same <i>code</i>
+and <i>extra</i> arguments as many times as you like, in order to match
+different subject strings with the same pattern.
+</P>
+<P>
+This function is the main matching facility of the library, and it operates in
+a Perl-like manner. For specialist use there is also an alternative matching
+function, which is described
+<a href="#dfamatch">below</a>
+in the section about the <b>pcre_dfa_exec()</b> function.
+</P>
+<P>
+In most applications, the pattern will have been compiled (and optionally
+studied) in the same process that calls <b>pcre_exec()</b>. However, it is
+possible to save compiled patterns and study data, and then use them later
+in different processes, possibly even on different hosts. For a discussion
+about this, see the
+<a href="pcreprecompile.html"><b>pcreprecompile</b></a>
+documentation.
+</P>
+<P>
+Here is an example of a simple call to <b>pcre_exec()</b>:
+<pre>
+  int rc;
+  int ovector[30];
+  rc = pcre_exec(
+    re,             /* result of pcre_compile() */
+    NULL,           /* we didn't study the pattern */
+    "some string",  /* the subject string */
+    11,             /* the length of the subject string */
+    0,              /* start at offset 0 in the subject */
+    0,              /* default options */
+    ovector,        /* vector of integers for substring information */
+    30);            /* number of elements (NOT size in bytes) */
+<a name="extradata"></a></PRE>
+</P>
+<br><b>
+Extra data for <b>pcre_exec()</b>
+</b><br>
+<P>
+If the <i>extra</i> argument is not NULL, it must point to a <b>pcre_extra</b>
+data block. The <b>pcre_study()</b> function returns such a block (when it
+doesn't return NULL), but you can also create one for yourself, and pass
+additional information in it. The <b>pcre_extra</b> block contains the following
+fields (not necessarily in this order):
+<pre>
+  unsigned long int <i>flags</i>;
+  void *<i>study_data</i>;
+  void *<i>executable_jit</i>;
+  unsigned long int <i>match_limit</i>;
+  unsigned long int <i>match_limit_recursion</i>;
+  void *<i>callout_data</i>;
+  const unsigned char *<i>tables</i>;
+  unsigned char **<i>mark</i>;
+</pre>
+In the 16-bit version of this structure, the <i>mark</i> field has type
+"PCRE_UCHAR16 **".
+</P>
+<P>
+The <i>flags</i> field is used to specify which of the other fields are set. The
+flag bits are:
+<pre>
+  PCRE_EXTRA_CALLOUT_DATA
+  PCRE_EXTRA_EXECUTABLE_JIT
+  PCRE_EXTRA_MARK
+  PCRE_EXTRA_MATCH_LIMIT
+  PCRE_EXTRA_MATCH_LIMIT_RECURSION
+  PCRE_EXTRA_STUDY_DATA
+  PCRE_EXTRA_TABLES
+</pre>
+Other flag bits should be set to zero. The <i>study_data</i> field and sometimes
+the <i>executable_jit</i> field are set in the <b>pcre_extra</b> block that is
+returned by <b>pcre_study()</b>, together with the appropriate flag bits. You
+should not set these yourself, but you may add to the block by setting other
+fields and their corresponding flag bits.
+</P>
+<P>
+The <i>match_limit</i> field provides a means of preventing PCRE from using up a
+vast amount of resources when running patterns that are not going to match,
+but which have a very large number of possibilities in their search trees. The
+classic example is a pattern that uses nested unlimited repeats.
+</P>
+<P>
+Internally, <b>pcre_exec()</b> uses a function called <b>match()</b>, which it
+calls repeatedly (sometimes recursively). The limit set by <i>match_limit</i> is
+imposed on the number of times this function is called during a match, which
+has the effect of limiting the amount of backtracking that can take place. For
+patterns that are not anchored, the count restarts from zero for each position
+in the subject string.
+</P>
+<P>
+When <b>pcre_exec()</b> is called with a pattern that was successfully studied
+with a JIT option, the way that the matching is executed is entirely different.
+However, there is still the possibility of runaway matching that goes on for a
+very long time, and so the <i>match_limit</i> value is also used in this case
+(but in a different way) to limit how long the matching can continue.
+</P>
+<P>
+The default value for the limit can be set when PCRE is built; the default
+default is 10 million, which handles all but the most extreme cases. You can
+override the default by suppling <b>pcre_exec()</b> with a <b>pcre_extra</b>
+block in which <i>match_limit</i> is set, and PCRE_EXTRA_MATCH_LIMIT is set in
+the <i>flags</i> field. If the limit is exceeded, <b>pcre_exec()</b> returns
+PCRE_ERROR_MATCHLIMIT.
+</P>
+<P>
+The <i>match_limit_recursion</i> field is similar to <i>match_limit</i>, but
+instead of limiting the total number of times that <b>match()</b> is called, it
+limits the depth of recursion. The recursion depth is a smaller number than the
+total number of calls, because not all calls to <b>match()</b> are recursive.
+This limit is of use only if it is set smaller than <i>match_limit</i>.
+</P>
+<P>
+Limiting the recursion depth limits the amount of machine stack that can be
+used, or, when PCRE has been compiled to use memory on the heap instead of the
+stack, the amount of heap memory that can be used. This limit is not relevant,
+and is ignored, when matching is done using JIT compiled code.
+</P>
+<P>
+The default value for <i>match_limit_recursion</i> can be set when PCRE is
+built; the default default is the same value as the default for
+<i>match_limit</i>. You can override the default by suppling <b>pcre_exec()</b>
+with a <b>pcre_extra</b> block in which <i>match_limit_recursion</i> is set, and
+PCRE_EXTRA_MATCH_LIMIT_RECURSION is set in the <i>flags</i> field. If the limit
+is exceeded, <b>pcre_exec()</b> returns PCRE_ERROR_RECURSIONLIMIT.
+</P>
+<P>
+The <i>callout_data</i> field is used in conjunction with the "callout" feature,
+and is described in the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation.
+</P>
+<P>
+The <i>tables</i> field is used to pass a character tables pointer to
+<b>pcre_exec()</b>; this overrides the value that is stored with the compiled
+pattern. A non-NULL value is stored with the compiled pattern only if custom
+tables were supplied to <b>pcre_compile()</b> via its <i>tableptr</i> argument.
+If NULL is passed to <b>pcre_exec()</b> using this mechanism, it forces PCRE's
+internal tables to be used. This facility is helpful when re-using patterns
+that have been saved after compiling with an external set of tables, because
+the external tables might be at a different address when <b>pcre_exec()</b> is
+called. See the
+<a href="pcreprecompile.html"><b>pcreprecompile</b></a>
+documentation for a discussion of saving compiled patterns for later use.
+</P>
+<P>
+If PCRE_EXTRA_MARK is set in the <i>flags</i> field, the <i>mark</i> field must
+be set to point to a suitable variable. If the pattern contains any
+backtracking control verbs such as (*MARK:NAME), and the execution ends up with
+a name to pass back, a pointer to the name string (zero terminated) is placed
+in the variable pointed to by the <i>mark</i> field. The names are within the
+compiled pattern; if you wish to retain such a name you must copy it before
+freeing the memory of a compiled pattern. If there is no name to pass back, the
+variable pointed to by the <i>mark</i> field is set to NULL. For details of the
+backtracking control verbs, see the section entitled
+<a href="pcrepattern#backtrackcontrol">"Backtracking control"</a>
+in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation.
+<a name="execoptions"></a></P>
+<br><b>
+Option bits for <b>pcre_exec()</b>
+</b><br>
+<P>
+The unused bits of the <i>options</i> argument for <b>pcre_exec()</b> must be
+zero. The only bits that may be set are PCRE_ANCHORED, PCRE_NEWLINE_<i>xxx</i>,
+PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART,
+PCRE_NO_START_OPTIMIZE, PCRE_NO_UTF8_CHECK, PCRE_PARTIAL_HARD, and
+PCRE_PARTIAL_SOFT.
+</P>
+<P>
+If the pattern was successfully studied with one of the just-in-time (JIT)
+compile options, the only supported options for JIT execution are
+PCRE_NO_UTF8_CHECK, PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY,
+PCRE_NOTEMPTY_ATSTART, PCRE_PARTIAL_HARD, and PCRE_PARTIAL_SOFT. If an
+unsupported option is used, JIT execution is disabled and the normal
+interpretive code in <b>pcre_exec()</b> is run.
+<pre>
+  PCRE_ANCHORED
+</pre>
+The PCRE_ANCHORED option limits <b>pcre_exec()</b> to matching at the first
+matching position. If a pattern was compiled with PCRE_ANCHORED, or turned out
+to be anchored by virtue of its contents, it cannot be made unachored at
+matching time.
+<pre>
+  PCRE_BSR_ANYCRLF
+  PCRE_BSR_UNICODE
+</pre>
+These options (which are mutually exclusive) control what the \R escape
+sequence matches. The choice is either to match only CR, LF, or CRLF, or to
+match any Unicode newline sequence. These options override the choice that was
+made or defaulted when the pattern was compiled.
+<pre>
+  PCRE_NEWLINE_CR
+  PCRE_NEWLINE_LF
+  PCRE_NEWLINE_CRLF
+  PCRE_NEWLINE_ANYCRLF
+  PCRE_NEWLINE_ANY
+</pre>
+These options override the newline definition that was chosen or defaulted when
+the pattern was compiled. For details, see the description of
+<b>pcre_compile()</b> above. During matching, the newline choice affects the
+behaviour of the dot, circumflex, and dollar metacharacters. It may also alter
+the way the match position is advanced after a match failure for an unanchored
+pattern.
+</P>
+<P>
+When PCRE_NEWLINE_CRLF, PCRE_NEWLINE_ANYCRLF, or PCRE_NEWLINE_ANY is set, and a
+match attempt for an unanchored pattern fails when the current position is at a
+CRLF sequence, and the pattern contains no explicit matches for CR or LF
+characters, the match position is advanced by two characters instead of one, in
+other words, to after the CRLF.
+</P>
+<P>
+The above rule is a compromise that makes the most common cases work as
+expected. For example, if the pattern is .+A (and the PCRE_DOTALL option is not
+set), it does not match the string "\r\nA" because, after failing at the
+start, it skips both the CR and the LF before retrying. However, the pattern
+[\r\n]A does match that string, because it contains an explicit CR or LF
+reference, and so advances only by one character after the first failure.
+</P>
+<P>
+An explicit match for CR of LF is either a literal appearance of one of those
+characters, or one of the \r or \n escape sequences. Implicit matches such as
+[^X] do not count, nor does \s (which includes CR and LF in the characters
+that it matches).
+</P>
+<P>
+Notwithstanding the above, anomalous effects may still occur when CRLF is a
+valid newline sequence and explicit \r or \n escapes appear in the pattern.
+<pre>
+  PCRE_NOTBOL
+</pre>
+This option specifies that first character of the subject string is not the
+beginning of a line, so the circumflex metacharacter should not match before
+it. Setting this without PCRE_MULTILINE (at compile time) causes circumflex
+never to match. This option affects only the behaviour of the circumflex
+metacharacter. It does not affect \A.
+<pre>
+  PCRE_NOTEOL
+</pre>
+This option specifies that the end of the subject string is not the end of a
+line, so the dollar metacharacter should not match it nor (except in multiline
+mode) a newline immediately before it. Setting this without PCRE_MULTILINE (at
+compile time) causes dollar never to match. This option affects only the
+behaviour of the dollar metacharacter. It does not affect \Z or \z.
+<pre>
+  PCRE_NOTEMPTY
+</pre>
+An empty string is not considered to be a valid match if this option is set. If
+there are alternatives in the pattern, they are tried. If all the alternatives
+match the empty string, the entire match fails. For example, if the pattern
+<pre>
+  a?b?
+</pre>
+is applied to a string not beginning with "a" or "b", it matches an empty
+string at the start of the subject. With PCRE_NOTEMPTY set, this match is not
+valid, so PCRE searches further into the string for occurrences of "a" or "b".
+<pre>
+  PCRE_NOTEMPTY_ATSTART
+</pre>
+This is like PCRE_NOTEMPTY, except that an empty string match that is not at
+the start of the subject is permitted. If the pattern is anchored, such a match
+can occur only if the pattern contains \K.
+</P>
+<P>
+Perl has no direct equivalent of PCRE_NOTEMPTY or PCRE_NOTEMPTY_ATSTART, but it
+does make a special case of a pattern match of the empty string within its
+<b>split()</b> function, and when using the /g modifier. It is possible to
+emulate Perl's behaviour after matching a null string by first trying the match
+again at the same offset with PCRE_NOTEMPTY_ATSTART and PCRE_ANCHORED, and then
+if that fails, by advancing the starting offset (see below) and trying an
+ordinary match again. There is some code that demonstrates how to do this in
+the
+<a href="pcredemo.html"><b>pcredemo</b></a>
+sample program. In the most general case, you have to check to see if the
+newline convention recognizes CRLF as a newline, and if so, and the current
+character is CR followed by LF, advance the starting offset by two characters
+instead of one.
+<pre>
+  PCRE_NO_START_OPTIMIZE
+</pre>
+There are a number of optimizations that <b>pcre_exec()</b> uses at the start of
+a match, in order to speed up the process. For example, if it is known that an
+unanchored match must start with a specific character, it searches the subject
+for that character, and fails immediately if it cannot find it, without
+actually running the main matching function. This means that a special item
+such as (*COMMIT) at the start of a pattern is not considered until after a
+suitable starting point for the match has been found. When callouts or (*MARK)
+items are in use, these "start-up" optimizations can cause them to be skipped
+if the pattern is never actually used. The start-up optimizations are in effect
+a pre-scan of the subject that takes place before the pattern is run.
+</P>
+<P>
+The PCRE_NO_START_OPTIMIZE option disables the start-up optimizations, possibly
+causing performance to suffer, but ensuring that in cases where the result is
+"no match", the callouts do occur, and that items such as (*COMMIT) and (*MARK)
+are considered at every possible starting position in the subject string. If
+PCRE_NO_START_OPTIMIZE is set at compile time, it cannot be unset at matching
+time. The use of PCRE_NO_START_OPTIMIZE disables JIT execution; when it is set,
+matching is always done using interpretively.
+</P>
+<P>
+Setting PCRE_NO_START_OPTIMIZE can change the outcome of a matching operation.
+Consider the pattern
+<pre>
+  (*COMMIT)ABC
+</pre>
+When this is compiled, PCRE records the fact that a match must start with the
+character "A". Suppose the subject string is "DEFABC". The start-up
+optimization scans along the subject, finds "A" and runs the first match
+attempt from there. The (*COMMIT) item means that the pattern must match the
+current starting position, which in this case, it does. However, if the same
+match is run with PCRE_NO_START_OPTIMIZE set, the initial scan along the
+subject string does not happen. The first match attempt is run starting from
+"D" and when this fails, (*COMMIT) prevents any further matches being tried, so
+the overall result is "no match". If the pattern is studied, more start-up
+optimizations may be used. For example, a minimum length for the subject may be
+recorded. Consider the pattern
+<pre>
+  (*MARK:A)(X|Y)
+</pre>
+The minimum length for a match is one character. If the subject is "ABC", there
+will be attempts to match "ABC", "BC", "C", and then finally an empty string.
+If the pattern is studied, the final attempt does not take place, because PCRE
+knows that the subject is too short, and so the (*MARK) is never encountered.
+In this case, studying the pattern does not affect the overall match result,
+which is still "no match", but it does affect the auxiliary information that is
+returned.
+<pre>
+  PCRE_NO_UTF8_CHECK
+</pre>
+When PCRE_UTF8 is set at compile time, the validity of the subject as a UTF-8
+string is automatically checked when <b>pcre_exec()</b> is subsequently called.
+The entire string is checked before any other processing takes place. The value
+of <i>startoffset</i> is also checked to ensure that it points to the start of a
+UTF-8 character. There is a discussion about the
+<a href="pcreunicode.html#utf8strings">validity of UTF-8 strings</a>
+in the
+<a href="pcreunicode.html"><b>pcreunicode</b></a>
+page. If an invalid sequence of bytes is found, <b>pcre_exec()</b> returns the
+error PCRE_ERROR_BADUTF8 or, if PCRE_PARTIAL_HARD is set and the problem is a
+truncated character at the end of the subject, PCRE_ERROR_SHORTUTF8. In both
+cases, information about the precise nature of the error may also be returned
+(see the descriptions of these errors in the section entitled \fIError return
+values from\fP <b>pcre_exec()</b>
+<a href="#errorlist">below).</a>
+If <i>startoffset</i> contains a value that does not point to the start of a
+UTF-8 character (or to the end of the subject), PCRE_ERROR_BADUTF8_OFFSET is
+returned.
+</P>
+<P>
+If you already know that your subject is valid, and you want to skip these
+checks for performance reasons, you can set the PCRE_NO_UTF8_CHECK option when
+calling <b>pcre_exec()</b>. You might want to do this for the second and
+subsequent calls to <b>pcre_exec()</b> if you are making repeated calls to find
+all the matches in a single subject string. However, you should be sure that
+the value of <i>startoffset</i> points to the start of a character (or the end
+of the subject). When PCRE_NO_UTF8_CHECK is set, the effect of passing an
+invalid string as a subject or an invalid value of <i>startoffset</i> is
+undefined. Your program may crash.
+<pre>
+  PCRE_PARTIAL_HARD
+  PCRE_PARTIAL_SOFT
+</pre>
+These options turn on the partial matching feature. For backwards
+compatibility, PCRE_PARTIAL is a synonym for PCRE_PARTIAL_SOFT. A partial match
+occurs if the end of the subject string is reached successfully, but there are
+not enough subject characters to complete the match. If this happens when
+PCRE_PARTIAL_SOFT (but not PCRE_PARTIAL_HARD) is set, matching continues by
+testing any remaining alternatives. Only if no complete match can be found is
+PCRE_ERROR_PARTIAL returned instead of PCRE_ERROR_NOMATCH. In other words,
+PCRE_PARTIAL_SOFT says that the caller is prepared to handle a partial match,
+but only if no complete match can be found.
+</P>
+<P>
+If PCRE_PARTIAL_HARD is set, it overrides PCRE_PARTIAL_SOFT. In this case, if a
+partial match is found, <b>pcre_exec()</b> immediately returns
+PCRE_ERROR_PARTIAL, without considering any other alternatives. In other words,
+when PCRE_PARTIAL_HARD is set, a partial match is considered to be more
+important that an alternative complete match.
+</P>
+<P>
+In both cases, the portion of the string that was inspected when the partial
+match was found is set as the first matching string. There is a more detailed
+discussion of partial and multi-segment matching, with examples, in the
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+documentation.
+</P>
+<br><b>
+The string to be matched by <b>pcre_exec()</b>
+</b><br>
+<P>
+The subject string is passed to <b>pcre_exec()</b> as a pointer in
+<i>subject</i>, a length in bytes in <i>length</i>, and a starting byte offset
+in <i>startoffset</i>. If this is negative or greater than the length of the
+subject, <b>pcre_exec()</b> returns PCRE_ERROR_BADOFFSET. When the starting
+offset is zero, the search for a match starts at the beginning of the subject,
+and this is by far the most common case. In UTF-8 mode, the byte offset must
+point to the start of a UTF-8 character (or the end of the subject). Unlike the
+pattern string, the subject may contain binary zero bytes.
+</P>
+<P>
+A non-zero starting offset is useful when searching for another match in the
+same subject by calling <b>pcre_exec()</b> again after a previous success.
+Setting <i>startoffset</i> differs from just passing over a shortened string and
+setting PCRE_NOTBOL in the case of a pattern that begins with any kind of
+lookbehind. For example, consider the pattern
+<pre>
+  \Biss\B
+</pre>
+which finds occurrences of "iss" in the middle of words. (\B matches only if
+the current position in the subject is not a word boundary.) When applied to
+the string "Mississipi" the first call to <b>pcre_exec()</b> finds the first
+occurrence. If <b>pcre_exec()</b> is called again with just the remainder of the
+subject, namely "issipi", it does not match, because \B is always false at the
+start of the subject, which is deemed to be a word boundary. However, if
+<b>pcre_exec()</b> is passed the entire string again, but with <i>startoffset</i>
+set to 4, it finds the second occurrence of "iss" because it is able to look
+behind the starting point to discover that it is preceded by a letter.
+</P>
+<P>
+Finding all the matches in a subject is tricky when the pattern can match an
+empty string. It is possible to emulate Perl's /g behaviour by first trying the
+match again at the same offset, with the PCRE_NOTEMPTY_ATSTART and
+PCRE_ANCHORED options, and then if that fails, advancing the starting offset
+and trying an ordinary match again. There is some code that demonstrates how to
+do this in the
+<a href="pcredemo.html"><b>pcredemo</b></a>
+sample program. In the most general case, you have to check to see if the
+newline convention recognizes CRLF as a newline, and if so, and the current
+character is CR followed by LF, advance the starting offset by two characters
+instead of one.
+</P>
+<P>
+If a non-zero starting offset is passed when the pattern is anchored, one
+attempt to match at the given offset is made. This can only succeed if the
+pattern does not require the match to be at the start of the subject.
+</P>
+<br><b>
+How <b>pcre_exec()</b> returns captured substrings
+</b><br>
+<P>
+In general, a pattern matches a certain portion of the subject, and in
+addition, further substrings from the subject may be picked out by parts of the
+pattern. Following the usage in Jeffrey Friedl's book, this is called
+"capturing" in what follows, and the phrase "capturing subpattern" is used for
+a fragment of a pattern that picks out a substring. PCRE supports several other
+kinds of parenthesized subpattern that do not cause substrings to be captured.
+</P>
+<P>
+Captured substrings are returned to the caller via a vector of integers whose
+address is passed in <i>ovector</i>. The number of elements in the vector is
+passed in <i>ovecsize</i>, which must be a non-negative number. <b>Note</b>: this
+argument is NOT the size of <i>ovector</i> in bytes.
+</P>
+<P>
+The first two-thirds of the vector is used to pass back captured substrings,
+each substring using a pair of integers. The remaining third of the vector is
+used as workspace by <b>pcre_exec()</b> while matching capturing subpatterns,
+and is not available for passing back information. The number passed in
+<i>ovecsize</i> should always be a multiple of three. If it is not, it is
+rounded down.
+</P>
+<P>
+When a match is successful, information about captured substrings is returned
+in pairs of integers, starting at the beginning of <i>ovector</i>, and
+continuing up to two-thirds of its length at the most. The first element of
+each pair is set to the byte offset of the first character in a substring, and
+the second is set to the byte offset of the first character after the end of a
+substring. <b>Note</b>: these values are always byte offsets, even in UTF-8
+mode. They are not character counts.
+</P>
+<P>
+The first pair of integers, <i>ovector[0]</i> and <i>ovector[1]</i>, identify the
+portion of the subject string matched by the entire pattern. The next pair is
+used for the first capturing subpattern, and so on. The value returned by
+<b>pcre_exec()</b> is one more than the highest numbered pair that has been set.
+For example, if two substrings have been captured, the returned value is 3. If
+there are no capturing subpatterns, the return value from a successful match is
+1, indicating that just the first pair of offsets has been set.
+</P>
+<P>
+If a capturing subpattern is matched repeatedly, it is the last portion of the
+string that it matched that is returned.
+</P>
+<P>
+If the vector is too small to hold all the captured substring offsets, it is
+used as far as possible (up to two-thirds of its length), and the function
+returns a value of zero. If neither the actual string matched nor any captured
+substrings are of interest, <b>pcre_exec()</b> may be called with <i>ovector</i>
+passed as NULL and <i>ovecsize</i> as zero. However, if the pattern contains
+back references and the <i>ovector</i> is not big enough to remember the related
+substrings, PCRE has to get additional memory for use during matching. Thus it
+is usually advisable to supply an <i>ovector</i> of reasonable size.
+</P>
+<P>
+There are some cases where zero is returned (indicating vector overflow) when
+in fact the vector is exactly the right size for the final match. For example,
+consider the pattern
+<pre>
+  (a)(?:(b)c|bd)
+</pre>
+If a vector of 6 elements (allowing for only 1 captured substring) is given
+with subject string "abd", <b>pcre_exec()</b> will try to set the second
+captured string, thereby recording a vector overflow, before failing to match
+"c" and backing up to try the second alternative. The zero return, however,
+does correctly indicate that the maximum number of slots (namely 2) have been
+filled. In similar cases where there is temporary overflow, but the final
+number of used slots is actually less than the maximum, a non-zero value is
+returned.
+</P>
+<P>
+The <b>pcre_fullinfo()</b> function can be used to find out how many capturing
+subpatterns there are in a compiled pattern. The smallest size for
+<i>ovector</i> that will allow for <i>n</i> captured substrings, in addition to
+the offsets of the substring matched by the whole pattern, is (<i>n</i>+1)*3.
+</P>
+<P>
+It is possible for capturing subpattern number <i>n+1</i> to match some part of
+the subject when subpattern <i>n</i> has not been used at all. For example, if
+the string "abc" is matched against the pattern (a|(z))(bc) the return from the
+function is 4, and subpatterns 1 and 3 are matched, but 2 is not. When this
+happens, both values in the offset pairs corresponding to unused subpatterns
+are set to -1.
+</P>
+<P>
+Offset values that correspond to unused subpatterns at the end of the
+expression are also set to -1. For example, if the string "abc" is matched
+against the pattern (abc)(x(yz)?)? subpatterns 2 and 3 are not matched. The
+return from the function is 2, because the highest used capturing subpattern
+number is 1, and the offsets for for the second and third capturing subpatterns
+(assuming the vector is large enough, of course) are set to -1.
+</P>
+<P>
+<b>Note</b>: Elements in the first two-thirds of <i>ovector</i> that do not
+correspond to capturing parentheses in the pattern are never changed. That is,
+if a pattern contains <i>n</i> capturing parentheses, no more than
+<i>ovector[0]</i> to <i>ovector[2n+1]</i> are set by <b>pcre_exec()</b>. The other
+elements (in the first two-thirds) retain whatever values they previously had.
+</P>
+<P>
+Some convenience functions are provided for extracting the captured substrings
+as separate strings. These are described below.
+<a name="errorlist"></a></P>
+<br><b>
+Error return values from <b>pcre_exec()</b>
+</b><br>
+<P>
+If <b>pcre_exec()</b> fails, it returns a negative number. The following are
+defined in the header file:
+<pre>
+  PCRE_ERROR_NOMATCH        (-1)
+</pre>
+The subject string did not match the pattern.
+<pre>
+  PCRE_ERROR_NULL           (-2)
+</pre>
+Either <i>code</i> or <i>subject</i> was passed as NULL, or <i>ovector</i> was
+NULL and <i>ovecsize</i> was not zero.
+<pre>
+  PCRE_ERROR_BADOPTION      (-3)
+</pre>
+An unrecognized bit was set in the <i>options</i> argument.
+<pre>
+  PCRE_ERROR_BADMAGIC       (-4)
+</pre>
+PCRE stores a 4-byte "magic number" at the start of the compiled code, to catch
+the case when it is passed a junk pointer and to detect when a pattern that was
+compiled in an environment of one endianness is run in an environment with the
+other endianness. This is the error that PCRE gives when the magic number is
+not present.
+<pre>
+  PCRE_ERROR_UNKNOWN_OPCODE (-5)
+</pre>
+While running the pattern match, an unknown item was encountered in the
+compiled pattern. This error could be caused by a bug in PCRE or by overwriting
+of the compiled pattern.
+<pre>
+  PCRE_ERROR_NOMEMORY       (-6)
+</pre>
+If a pattern contains back references, but the <i>ovector</i> that is passed to
+<b>pcre_exec()</b> is not big enough to remember the referenced substrings, PCRE
+gets a block of memory at the start of matching to use for this purpose. If the
+call via <b>pcre_malloc()</b> fails, this error is given. The memory is
+automatically freed at the end of matching.
+</P>
+<P>
+This error is also given if <b>pcre_stack_malloc()</b> fails in
+<b>pcre_exec()</b>. This can happen only when PCRE has been compiled with
+<b>--disable-stack-for-recursion</b>.
+<pre>
+  PCRE_ERROR_NOSUBSTRING    (-7)
+</pre>
+This error is used by the <b>pcre_copy_substring()</b>,
+<b>pcre_get_substring()</b>, and <b>pcre_get_substring_list()</b> functions (see
+below). It is never returned by <b>pcre_exec()</b>.
+<pre>
+  PCRE_ERROR_MATCHLIMIT     (-8)
+</pre>
+The backtracking limit, as specified by the <i>match_limit</i> field in a
+<b>pcre_extra</b> structure (or defaulted) was reached. See the description
+above.
+<pre>
+  PCRE_ERROR_CALLOUT        (-9)
+</pre>
+This error is never generated by <b>pcre_exec()</b> itself. It is provided for
+use by callout functions that want to yield a distinctive error code. See the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation for details.
+<pre>
+  PCRE_ERROR_BADUTF8        (-10)
+</pre>
+A string that contains an invalid UTF-8 byte sequence was passed as a subject,
+and the PCRE_NO_UTF8_CHECK option was not set. If the size of the output vector
+(<i>ovecsize</i>) is at least 2, the byte offset to the start of the the invalid
+UTF-8 character is placed in the first element, and a reason code is placed in
+the second element. The reason codes are listed in the
+<a href="#badutf8reasons">following section.</a>
+For backward compatibility, if PCRE_PARTIAL_HARD is set and the problem is a
+truncated UTF-8 character at the end of the subject (reason codes 1 to 5),
+PCRE_ERROR_SHORTUTF8 is returned instead of PCRE_ERROR_BADUTF8.
+<pre>
+  PCRE_ERROR_BADUTF8_OFFSET (-11)
+</pre>
+The UTF-8 byte sequence that was passed as a subject was checked and found to
+be valid (the PCRE_NO_UTF8_CHECK option was not set), but the value of
+<i>startoffset</i> did not point to the beginning of a UTF-8 character or the
+end of the subject.
+<pre>
+  PCRE_ERROR_PARTIAL        (-12)
+</pre>
+The subject string did not match, but it did match partially. See the
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+documentation for details of partial matching.
+<pre>
+  PCRE_ERROR_BADPARTIAL     (-13)
+</pre>
+This code is no longer in use. It was formerly returned when the PCRE_PARTIAL
+option was used with a compiled pattern containing items that were not
+supported for partial matching. From release 8.00 onwards, there are no
+restrictions on partial matching.
+<pre>
+  PCRE_ERROR_INTERNAL       (-14)
+</pre>
+An unexpected internal error has occurred. This error could be caused by a bug
+in PCRE or by overwriting of the compiled pattern.
+<pre>
+  PCRE_ERROR_BADCOUNT       (-15)
+</pre>
+This error is given if the value of the <i>ovecsize</i> argument is negative.
+<pre>
+  PCRE_ERROR_RECURSIONLIMIT (-21)
+</pre>
+The internal recursion limit, as specified by the <i>match_limit_recursion</i>
+field in a <b>pcre_extra</b> structure (or defaulted) was reached. See the
+description above.
+<pre>
+  PCRE_ERROR_BADNEWLINE     (-23)
+</pre>
+An invalid combination of PCRE_NEWLINE_<i>xxx</i> options was given.
+<pre>
+  PCRE_ERROR_BADOFFSET      (-24)
+</pre>
+The value of <i>startoffset</i> was negative or greater than the length of the
+subject, that is, the value in <i>length</i>.
+<pre>
+  PCRE_ERROR_SHORTUTF8      (-25)
+</pre>
+This error is returned instead of PCRE_ERROR_BADUTF8 when the subject string
+ends with a truncated UTF-8 character and the PCRE_PARTIAL_HARD option is set.
+Information about the failure is returned as for PCRE_ERROR_BADUTF8. It is in
+fact sufficient to detect this case, but this special error code for
+PCRE_PARTIAL_HARD precedes the implementation of returned information; it is
+retained for backwards compatibility.
+<pre>
+  PCRE_ERROR_RECURSELOOP    (-26)
+</pre>
+This error is returned when <b>pcre_exec()</b> detects a recursion loop within
+the pattern. Specifically, it means that either the whole pattern or a
+subpattern has been called recursively for the second time at the same position
+in the subject string. Some simple patterns that might do this are detected and
+faulted at compile time, but more complicated cases, in particular mutual
+recursions between two different subpatterns, cannot be detected until run
+time.
+<pre>
+  PCRE_ERROR_JIT_STACKLIMIT (-27)
+</pre>
+This error is returned when a pattern that was successfully studied using a
+JIT compile option is being matched, but the memory available for the
+just-in-time processing stack is not large enough. See the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation for more details.
+<pre>
+  PCRE_ERROR_BADMODE        (-28)
+</pre>
+This error is given if a pattern that was compiled by the 8-bit library is
+passed to a 16-bit library function, or vice versa.
+<pre>
+  PCRE_ERROR_BADENDIANNESS  (-29)
+</pre>
+This error is given if a pattern that was compiled and saved is reloaded on a
+host with different endianness. The utility function
+<b>pcre_pattern_to_host_byte_order()</b> can be used to convert such a pattern
+so that it runs on the new host.
+</P>
+<P>
+Error numbers -16 to -20, -22, and -30 are not used by <b>pcre_exec()</b>.
+<a name="badutf8reasons"></a></P>
+<br><b>
+Reason codes for invalid UTF-8 strings
+</b><br>
+<P>
+This section applies only to the 8-bit library. The corresponding information
+for the 16-bit library is given in the
+<a href="pcre16.html"><b>pcre16</b></a>
+page.
+</P>
+<P>
+When <b>pcre_exec()</b> returns either PCRE_ERROR_BADUTF8 or
+PCRE_ERROR_SHORTUTF8, and the size of the output vector (<i>ovecsize</i>) is at
+least 2, the offset of the start of the invalid UTF-8 character is placed in
+the first output vector element (<i>ovector[0]</i>) and a reason code is placed
+in the second element (<i>ovector[1]</i>). The reason codes are given names in
+the <b>pcre.h</b> header file:
+<pre>
+  PCRE_UTF8_ERR1
+  PCRE_UTF8_ERR2
+  PCRE_UTF8_ERR3
+  PCRE_UTF8_ERR4
+  PCRE_UTF8_ERR5
+</pre>
+The string ends with a truncated UTF-8 character; the code specifies how many
+bytes are missing (1 to 5). Although RFC 3629 restricts UTF-8 characters to be
+no longer than 4 bytes, the encoding scheme (originally defined by RFC 2279)
+allows for up to 6 bytes, and this is checked first; hence the possibility of
+4 or 5 missing bytes.
+<pre>
+  PCRE_UTF8_ERR6
+  PCRE_UTF8_ERR7
+  PCRE_UTF8_ERR8
+  PCRE_UTF8_ERR9
+  PCRE_UTF8_ERR10
+</pre>
+The two most significant bits of the 2nd, 3rd, 4th, 5th, or 6th byte of the
+character do not have the binary value 0b10 (that is, either the most
+significant bit is 0, or the next bit is 1).
+<pre>
+  PCRE_UTF8_ERR11
+  PCRE_UTF8_ERR12
+</pre>
+A character that is valid by the RFC 2279 rules is either 5 or 6 bytes long;
+these code points are excluded by RFC 3629.
+<pre>
+  PCRE_UTF8_ERR13
+</pre>
+A 4-byte character has a value greater than 0x10fff; these code points are
+excluded by RFC 3629.
+<pre>
+  PCRE_UTF8_ERR14
+</pre>
+A 3-byte character has a value in the range 0xd800 to 0xdfff; this range of
+code points are reserved by RFC 3629 for use with UTF-16, and so are excluded
+from UTF-8.
+<pre>
+  PCRE_UTF8_ERR15
+  PCRE_UTF8_ERR16
+  PCRE_UTF8_ERR17
+  PCRE_UTF8_ERR18
+  PCRE_UTF8_ERR19
+</pre>
+A 2-, 3-, 4-, 5-, or 6-byte character is "overlong", that is, it codes for a
+value that can be represented by fewer bytes, which is invalid. For example,
+the two bytes 0xc0, 0xae give the value 0x2e, whose correct coding uses just
+one byte.
+<pre>
+  PCRE_UTF8_ERR20
+</pre>
+The two most significant bits of the first byte of a character have the binary
+value 0b10 (that is, the most significant bit is 1 and the second is 0). Such a
+byte can only validly occur as the second or subsequent byte of a multi-byte
+character.
+<pre>
+  PCRE_UTF8_ERR21
+</pre>
+The first byte of a character has the value 0xfe or 0xff. These values can
+never occur in a valid UTF-8 string.
+</P>
+<br><a name="SEC18" href="#TOC1">EXTRACTING CAPTURED SUBSTRINGS BY NUMBER</a><br>
+<P>
+<b>int pcre_copy_substring(const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>, char *<i>buffer</i>,</b>
+<b>int <i>buffersize</i>);</b>
+</P>
+<P>
+<b>int pcre_get_substring(const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, int <i>stringnumber</i>,</b>
+<b>const char **<i>stringptr</i>);</b>
+</P>
+<P>
+<b>int pcre_get_substring_list(const char *<i>subject</i>,</b>
+<b>int *<i>ovector</i>, int <i>stringcount</i>, const char ***<i>listptr</i>);</b>
+</P>
+<P>
+Captured substrings can be accessed directly by using the offsets returned by
+<b>pcre_exec()</b> in <i>ovector</i>. For convenience, the functions
+<b>pcre_copy_substring()</b>, <b>pcre_get_substring()</b>, and
+<b>pcre_get_substring_list()</b> are provided for extracting captured substrings
+as new, separate, zero-terminated strings. These functions identify substrings
+by number. The next section describes functions for extracting named
+substrings.
+</P>
+<P>
+A substring that contains a binary zero is correctly extracted and has a
+further zero added on the end, but the result is not, of course, a C string.
+However, you can process such a string by referring to the length that is
+returned by <b>pcre_copy_substring()</b> and <b>pcre_get_substring()</b>.
+Unfortunately, the interface to <b>pcre_get_substring_list()</b> is not adequate
+for handling strings containing binary zeros, because the end of the final
+string is not independently indicated.
+</P>
+<P>
+The first three arguments are the same for all three of these functions:
+<i>subject</i> is the subject string that has just been successfully matched,
+<i>ovector</i> is a pointer to the vector of integer offsets that was passed to
+<b>pcre_exec()</b>, and <i>stringcount</i> is the number of substrings that were
+captured by the match, including the substring that matched the entire regular
+expression. This is the value returned by <b>pcre_exec()</b> if it is greater
+than zero. If <b>pcre_exec()</b> returned zero, indicating that it ran out of
+space in <i>ovector</i>, the value passed as <i>stringcount</i> should be the
+number of elements in the vector divided by three.
+</P>
+<P>
+The functions <b>pcre_copy_substring()</b> and <b>pcre_get_substring()</b>
+extract a single substring, whose number is given as <i>stringnumber</i>. A
+value of zero extracts the substring that matched the entire pattern, whereas
+higher values extract the captured substrings. For <b>pcre_copy_substring()</b>,
+the string is placed in <i>buffer</i>, whose length is given by
+<i>buffersize</i>, while for <b>pcre_get_substring()</b> a new block of memory is
+obtained via <b>pcre_malloc</b>, and its address is returned via
+<i>stringptr</i>. The yield of the function is the length of the string, not
+including the terminating zero, or one of these error codes:
+<pre>
+  PCRE_ERROR_NOMEMORY       (-6)
+</pre>
+The buffer was too small for <b>pcre_copy_substring()</b>, or the attempt to get
+memory failed for <b>pcre_get_substring()</b>.
+<pre>
+  PCRE_ERROR_NOSUBSTRING    (-7)
+</pre>
+There is no substring whose number is <i>stringnumber</i>.
+</P>
+<P>
+The <b>pcre_get_substring_list()</b> function extracts all available substrings
+and builds a list of pointers to them. All this is done in a single block of
+memory that is obtained via <b>pcre_malloc</b>. The address of the memory block
+is returned via <i>listptr</i>, which is also the start of the list of string
+pointers. The end of the list is marked by a NULL pointer. The yield of the
+function is zero if all went well, or the error code
+<pre>
+  PCRE_ERROR_NOMEMORY       (-6)
+</pre>
+if the attempt to get the memory block failed.
+</P>
+<P>
+When any of these functions encounter a substring that is unset, which can
+happen when capturing subpattern number <i>n+1</i> matches some part of the
+subject, but subpattern <i>n</i> has not been used at all, they return an empty
+string. This can be distinguished from a genuine zero-length substring by
+inspecting the appropriate offset in <i>ovector</i>, which is negative for unset
+substrings.
+</P>
+<P>
+The two convenience functions <b>pcre_free_substring()</b> and
+<b>pcre_free_substring_list()</b> can be used to free the memory returned by
+a previous call of <b>pcre_get_substring()</b> or
+<b>pcre_get_substring_list()</b>, respectively. They do nothing more than call
+the function pointed to by <b>pcre_free</b>, which of course could be called
+directly from a C program. However, PCRE is used in some situations where it is
+linked via a special interface to another programming language that cannot use
+<b>pcre_free</b> directly; it is for these cases that the functions are
+provided.
+</P>
+<br><a name="SEC19" href="#TOC1">EXTRACTING CAPTURED SUBSTRINGS BY NAME</a><br>
+<P>
+<b>int pcre_get_stringnumber(const pcre *<i>code</i>,</b>
+<b>const char *<i>name</i>);</b>
+</P>
+<P>
+<b>int pcre_copy_named_substring(const pcre *<i>code</i>,</b>
+<b>const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, const char *<i>stringname</i>,</b>
+<b>char *<i>buffer</i>, int <i>buffersize</i>);</b>
+</P>
+<P>
+<b>int pcre_get_named_substring(const pcre *<i>code</i>,</b>
+<b>const char *<i>subject</i>, int *<i>ovector</i>,</b>
+<b>int <i>stringcount</i>, const char *<i>stringname</i>,</b>
+<b>const char **<i>stringptr</i>);</b>
+</P>
+<P>
+To extract a substring by name, you first have to find associated number.
+For example, for this pattern
+<pre>
+  (a+)b(?&#60;xxx&#62;\d+)...
+</pre>
+the number of the subpattern called "xxx" is 2. If the name is known to be
+unique (PCRE_DUPNAMES was not set), you can find the number from the name by
+calling <b>pcre_get_stringnumber()</b>. The first argument is the compiled
+pattern, and the second is the name. The yield of the function is the
+subpattern number, or PCRE_ERROR_NOSUBSTRING (-7) if there is no subpattern of
+that name.
+</P>
+<P>
+Given the number, you can extract the substring directly, or use one of the
+functions described in the previous section. For convenience, there are also
+two functions that do the whole job.
+</P>
+<P>
+Most of the arguments of <b>pcre_copy_named_substring()</b> and
+<b>pcre_get_named_substring()</b> are the same as those for the similarly named
+functions that extract by number. As these are described in the previous
+section, they are not re-described here. There are just two differences:
+</P>
+<P>
+First, instead of a substring number, a substring name is given. Second, there
+is an extra argument, given at the start, which is a pointer to the compiled
+pattern. This is needed in order to gain access to the name-to-number
+translation table.
+</P>
+<P>
+These functions call <b>pcre_get_stringnumber()</b>, and if it succeeds, they
+then call <b>pcre_copy_substring()</b> or <b>pcre_get_substring()</b>, as
+appropriate. <b>NOTE:</b> If PCRE_DUPNAMES is set and there are duplicate names,
+the behaviour may not be what you want (see the next section).
+</P>
+<P>
+<b>Warning:</b> If the pattern uses the (?| feature to set up multiple
+subpatterns with the same number, as described in the
+<a href="pcrepattern.html#dupsubpatternnumber">section on duplicate subpattern numbers</a>
+in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+page, you cannot use names to distinguish the different subpatterns, because
+names are not included in the compiled code. The matching process uses only
+numbers. For this reason, the use of different names for subpatterns of the
+same number causes an error at compile time.
+</P>
+<br><a name="SEC20" href="#TOC1">DUPLICATE SUBPATTERN NAMES</a><br>
+<P>
+<b>int pcre_get_stringtable_entries(const pcre *<i>code</i>,</b>
+<b>const char *<i>name</i>, char **<i>first</i>, char **<i>last</i>);</b>
+</P>
+<P>
+When a pattern is compiled with the PCRE_DUPNAMES option, names for subpatterns
+are not required to be unique. (Duplicate names are always allowed for
+subpatterns with the same number, created by using the (?| feature. Indeed, if
+such subpatterns are named, they are required to use the same names.)
+</P>
+<P>
+Normally, patterns with duplicate names are such that in any one match, only
+one of the named subpatterns participates. An example is shown in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation.
+</P>
+<P>
+When duplicates are present, <b>pcre_copy_named_substring()</b> and
+<b>pcre_get_named_substring()</b> return the first substring corresponding to
+the given name that is set. If none are set, PCRE_ERROR_NOSUBSTRING (-7) is
+returned; no data is returned. The <b>pcre_get_stringnumber()</b> function
+returns one of the numbers that are associated with the name, but it is not
+defined which it is.
+</P>
+<P>
+If you want to get full details of all captured substrings for a given name,
+you must use the <b>pcre_get_stringtable_entries()</b> function. The first
+argument is the compiled pattern, and the second is the name. The third and
+fourth are pointers to variables which are updated by the function. After it
+has run, they point to the first and last entries in the name-to-number table
+for the given name. The function itself returns the length of each entry, or
+PCRE_ERROR_NOSUBSTRING (-7) if there are none. The format of the table is
+described above in the section entitled <i>Information about a pattern</i>
+<a href="#infoaboutpattern">above.</a>
+Given all the relevant entries for the name, you can extract each of their
+numbers, and hence the captured data, if any.
+</P>
+<br><a name="SEC21" href="#TOC1">FINDING ALL POSSIBLE MATCHES</a><br>
+<P>
+The traditional matching function uses a similar algorithm to Perl, which stops
+when it finds the first match, starting at a given point in the subject. If you
+want to find all possible matches, or the longest possible match, consider
+using the alternative matching function (see below) instead. If you cannot use
+the alternative function, but still need to find all possible matches, you
+can kludge it up by making use of the callout facility, which is described in
+the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation.
+</P>
+<P>
+What you have to do is to insert a callout right at the end of the pattern.
+When your callout function is called, extract and save the current matched
+substring. Then return 1, which forces <b>pcre_exec()</b> to backtrack and try
+other alternatives. Ultimately, when it runs out of matches, <b>pcre_exec()</b>
+will yield PCRE_ERROR_NOMATCH.
+</P>
+<br><a name="SEC22" href="#TOC1">OBTAINING AN ESTIMATE OF STACK USAGE</a><br>
+<P>
+Matching certain patterns using <b>pcre_exec()</b> can use a lot of process
+stack, which in certain environments can be rather limited in size. Some users
+find it helpful to have an estimate of the amount of stack that is used by
+<b>pcre_exec()</b>, to help them set recursion limits, as described in the
+<a href="pcrestack.html"><b>pcrestack</b></a>
+documentation. The estimate that is output by <b>pcretest</b> when called with
+the <b>-m</b> and <b>-C</b> options is obtained by calling <b>pcre_exec</b> with
+the values NULL, NULL, NULL, -999, and -999 for its first five arguments.
+</P>
+<P>
+Normally, if its first argument is NULL, <b>pcre_exec()</b> immediately returns
+the negative error code PCRE_ERROR_NULL, but with this special combination of
+arguments, it returns instead a negative number whose absolute value is the
+approximate stack frame size in bytes. (A negative number is used so that it is
+clear that no match has happened.) The value is approximate because in some
+cases, recursive calls to <b>pcre_exec()</b> occur when there are one or two
+additional variables on the stack.
+</P>
+<P>
+If PCRE has been compiled to use the heap instead of the stack for recursion,
+the value returned is the size of each block that is obtained from the heap.
+<a name="dfamatch"></a></P>
+<br><a name="SEC23" href="#TOC1">MATCHING A PATTERN: THE ALTERNATIVE FUNCTION</a><br>
+<P>
+<b>int pcre_dfa_exec(const pcre *<i>code</i>, const pcre_extra *<i>extra</i>,</b>
+<b>const char *<i>subject</i>, int <i>length</i>, int <i>startoffset</i>,</b>
+<b>int <i>options</i>, int *<i>ovector</i>, int <i>ovecsize</i>,</b>
+<b>int *<i>workspace</i>, int <i>wscount</i>);</b>
+</P>
+<P>
+The function <b>pcre_dfa_exec()</b> is called to match a subject string against
+a compiled pattern, using a matching algorithm that scans the subject string
+just once, and does not backtrack. This has different characteristics to the
+normal algorithm, and is not compatible with Perl. Some of the features of PCRE
+patterns are not supported. Nevertheless, there are times when this kind of
+matching can be useful. For a discussion of the two matching algorithms, and a
+list of features that <b>pcre_dfa_exec()</b> does not support, see the
+<a href="pcrematching.html"><b>pcrematching</b></a>
+documentation.
+</P>
+<P>
+The arguments for the <b>pcre_dfa_exec()</b> function are the same as for
+<b>pcre_exec()</b>, plus two extras. The <i>ovector</i> argument is used in a
+different way, and this is described below. The other common arguments are used
+in the same way as for <b>pcre_exec()</b>, so their description is not repeated
+here.
+</P>
+<P>
+The two additional arguments provide workspace for the function. The workspace
+vector should contain at least 20 elements. It is used for keeping track of
+multiple paths through the pattern tree. More workspace will be needed for
+patterns and subjects where there are a lot of potential matches.
+</P>
+<P>
+Here is an example of a simple call to <b>pcre_dfa_exec()</b>:
+<pre>
+  int rc;
+  int ovector[10];
+  int wspace[20];
+  rc = pcre_dfa_exec(
+    re,             /* result of pcre_compile() */
+    NULL,           /* we didn't study the pattern */
+    "some string",  /* the subject string */
+    11,             /* the length of the subject string */
+    0,              /* start at offset 0 in the subject */
+    0,              /* default options */
+    ovector,        /* vector of integers for substring information */
+    10,             /* number of elements (NOT size in bytes) */
+    wspace,         /* working space vector */
+    20);            /* number of elements (NOT size in bytes) */
+</PRE>
+</P>
+<br><b>
+Option bits for <b>pcre_dfa_exec()</b>
+</b><br>
+<P>
+The unused bits of the <i>options</i> argument for <b>pcre_dfa_exec()</b> must be
+zero. The only bits that may be set are PCRE_ANCHORED, PCRE_NEWLINE_<i>xxx</i>,
+PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART,
+PCRE_NO_UTF8_CHECK, PCRE_BSR_ANYCRLF, PCRE_BSR_UNICODE, PCRE_NO_START_OPTIMIZE,
+PCRE_PARTIAL_HARD, PCRE_PARTIAL_SOFT, PCRE_DFA_SHORTEST, and PCRE_DFA_RESTART.
+All but the last four of these are exactly the same as for <b>pcre_exec()</b>,
+so their description is not repeated here.
+<pre>
+  PCRE_PARTIAL_HARD
+  PCRE_PARTIAL_SOFT
+</pre>
+These have the same general effect as they do for <b>pcre_exec()</b>, but the
+details are slightly different. When PCRE_PARTIAL_HARD is set for
+<b>pcre_dfa_exec()</b>, it returns PCRE_ERROR_PARTIAL if the end of the subject
+is reached and there is still at least one matching possibility that requires
+additional characters. This happens even if some complete matches have also
+been found. When PCRE_PARTIAL_SOFT is set, the return code PCRE_ERROR_NOMATCH
+is converted into PCRE_ERROR_PARTIAL if the end of the subject is reached,
+there have been no complete matches, but there is still at least one matching
+possibility. The portion of the string that was inspected when the longest
+partial match was found is set as the first matching string in both cases.
+There is a more detailed discussion of partial and multi-segment matching, with
+examples, in the
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+documentation.
+<pre>
+  PCRE_DFA_SHORTEST
+</pre>
+Setting the PCRE_DFA_SHORTEST option causes the matching algorithm to stop as
+soon as it has found one match. Because of the way the alternative algorithm
+works, this is necessarily the shortest possible match at the first possible
+matching point in the subject string.
+<pre>
+  PCRE_DFA_RESTART
+</pre>
+When <b>pcre_dfa_exec()</b> returns a partial match, it is possible to call it
+again, with additional subject characters, and have it continue with the same
+match. The PCRE_DFA_RESTART option requests this action; when it is set, the
+<i>workspace</i> and <i>wscount</i> options must reference the same vector as
+before because data about the match so far is left in them after a partial
+match. There is more discussion of this facility in the
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+documentation.
+</P>
+<br><b>
+Successful returns from <b>pcre_dfa_exec()</b>
+</b><br>
+<P>
+When <b>pcre_dfa_exec()</b> succeeds, it may have matched more than one
+substring in the subject. Note, however, that all the matches from one run of
+the function start at the same point in the subject. The shorter matches are
+all initial substrings of the longer matches. For example, if the pattern
+<pre>
+  &#60;.*&#62;
+</pre>
+is matched against the string
+<pre>
+  This is &#60;something&#62; &#60;something else&#62; &#60;something further&#62; no more
+</pre>
+the three matched strings are
+<pre>
+  &#60;something&#62;
+  &#60;something&#62; &#60;something else&#62;
+  &#60;something&#62; &#60;something else&#62; &#60;something further&#62;
+</pre>
+On success, the yield of the function is a number greater than zero, which is
+the number of matched substrings. The substrings themselves are returned in
+<i>ovector</i>. Each string uses two elements; the first is the offset to the
+start, and the second is the offset to the end. In fact, all the strings have
+the same start offset. (Space could have been saved by giving this only once,
+but it was decided to retain some compatibility with the way <b>pcre_exec()</b>
+returns data, even though the meaning of the strings is different.)
+</P>
+<P>
+The strings are returned in reverse order of length; that is, the longest
+matching string is given first. If there were too many matches to fit into
+<i>ovector</i>, the yield of the function is zero, and the vector is filled with
+the longest matches. Unlike <b>pcre_exec()</b>, <b>pcre_dfa_exec()</b> can use
+the entire <i>ovector</i> for returning matched strings.
+</P>
+<br><b>
+Error returns from <b>pcre_dfa_exec()</b>
+</b><br>
+<P>
+The <b>pcre_dfa_exec()</b> function returns a negative number when it fails.
+Many of the errors are the same as for <b>pcre_exec()</b>, and these are
+described
+<a href="#errorlist">above.</a>
+There are in addition the following errors that are specific to
+<b>pcre_dfa_exec()</b>:
+<pre>
+  PCRE_ERROR_DFA_UITEM      (-16)
+</pre>
+This return is given if <b>pcre_dfa_exec()</b> encounters an item in the pattern
+that it does not support, for instance, the use of \C or a back reference.
+<pre>
+  PCRE_ERROR_DFA_UCOND      (-17)
+</pre>
+This return is given if <b>pcre_dfa_exec()</b> encounters a condition item that
+uses a back reference for the condition, or a test for recursion in a specific
+group. These are not supported.
+<pre>
+  PCRE_ERROR_DFA_UMLIMIT    (-18)
+</pre>
+This return is given if <b>pcre_dfa_exec()</b> is called with an <i>extra</i>
+block that contains a setting of the <i>match_limit</i> or
+<i>match_limit_recursion</i> fields. This is not supported (these fields are
+meaningless for DFA matching).
+<pre>
+  PCRE_ERROR_DFA_WSSIZE     (-19)
+</pre>
+This return is given if <b>pcre_dfa_exec()</b> runs out of space in the
+<i>workspace</i> vector.
+<pre>
+  PCRE_ERROR_DFA_RECURSE    (-20)
+</pre>
+When a recursive subpattern is processed, the matching function calls itself
+recursively, using private vectors for <i>ovector</i> and <i>workspace</i>. This
+error is given if the output vector is not large enough. This should be
+extremely rare, as a vector of size 1000 is used.
+<pre>
+  PCRE_ERROR_DFA_BADRESTART (-30)
+</pre>
+When <b>pcre_dfa_exec()</b> is called with the <b>PCRE_DFA_RESTART</b> option,
+some plausibility checks are made on the contents of the workspace, which
+should contain data about the previous partial match. If any of these checks
+fail, this error is given.
+</P>
+<br><a name="SEC24" href="#TOC1">SEE ALSO</a><br>
+<P>
+<b>pcre16</b>(3), <b>pcrebuild</b>(3), <b>pcrecallout</b>(3), <b>pcrecpp(3)</b>(3),
+<b>pcrematching</b>(3), <b>pcrepartial</b>(3), <b>pcreposix</b>(3),
+<b>pcreprecompile</b>(3), <b>pcresample</b>(3), <b>pcrestack</b>(3).
+</P>
+<br><a name="SEC25" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC26" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 17 June 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrebuild.html b/8.31/doc/html/pcrebuild.html
new file mode 100644
index 0000000..2906c3d
--- /dev/null
+++ b/8.31/doc/html/pcrebuild.html
@@ -0,0 +1,420 @@
+<html>
+<head>
+<title>pcrebuild specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrebuild man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PCRE BUILD-TIME OPTIONS</a>
+<li><a name="TOC2" href="#SEC2">BUILDING 8-BIT and 16-BIT LIBRARIES</a>
+<li><a name="TOC3" href="#SEC3">BUILDING SHARED AND STATIC LIBRARIES</a>
+<li><a name="TOC4" href="#SEC4">C++ SUPPORT</a>
+<li><a name="TOC5" href="#SEC5">UTF-8 and UTF-16 SUPPORT</a>
+<li><a name="TOC6" href="#SEC6">UNICODE CHARACTER PROPERTY SUPPORT</a>
+<li><a name="TOC7" href="#SEC7">JUST-IN-TIME COMPILER SUPPORT</a>
+<li><a name="TOC8" href="#SEC8">CODE VALUE OF NEWLINE</a>
+<li><a name="TOC9" href="#SEC9">WHAT \R MATCHES</a>
+<li><a name="TOC10" href="#SEC10">POSIX MALLOC USAGE</a>
+<li><a name="TOC11" href="#SEC11">HANDLING VERY LARGE PATTERNS</a>
+<li><a name="TOC12" href="#SEC12">AVOIDING EXCESSIVE STACK USAGE</a>
+<li><a name="TOC13" href="#SEC13">LIMITING PCRE RESOURCE USAGE</a>
+<li><a name="TOC14" href="#SEC14">CREATING CHARACTER TABLES AT BUILD TIME</a>
+<li><a name="TOC15" href="#SEC15">USING EBCDIC CODE</a>
+<li><a name="TOC16" href="#SEC16">PCREGREP OPTIONS FOR COMPRESSED FILE SUPPORT</a>
+<li><a name="TOC17" href="#SEC17">PCREGREP BUFFER SIZE</a>
+<li><a name="TOC18" href="#SEC18">PCRETEST OPTION FOR LIBREADLINE SUPPORT</a>
+<li><a name="TOC19" href="#SEC19">SEE ALSO</a>
+<li><a name="TOC20" href="#SEC20">AUTHOR</a>
+<li><a name="TOC21" href="#SEC21">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">PCRE BUILD-TIME OPTIONS</a><br>
+<P>
+This document describes the optional features of PCRE that can be selected when
+the library is compiled. It assumes use of the <b>configure</b> script, where
+the optional features are selected or deselected by providing options to
+<b>configure</b> before running the <b>make</b> command. However, the same
+options can be selected in both Unix-like and non-Unix-like environments using
+the GUI facility of <b>cmake-gui</b> if you are using <b>CMake</b> instead of
+<b>configure</b> to build PCRE.
+</P>
+<P>
+There is a lot more information about building PCRE in non-Unix-like
+environments in the file called <i>NON_UNIX_USE</i>, which is part of the PCRE
+distribution. You should consult this file as well as the <i>README</i> file if
+you are building in a non-Unix-like environment.
+</P>
+<P>
+The complete list of options for <b>configure</b> (which includes the standard
+ones such as the selection of the installation directory) can be obtained by
+running
+<pre>
+  ./configure --help
+</pre>
+The following sections include descriptions of options whose names begin with
+--enable or --disable. These settings specify changes to the defaults for the
+<b>configure</b> command. Because of the way that <b>configure</b> works,
+--enable and --disable always come in pairs, so the complementary option always
+exists as well, but as it specifies the default, it is not described.
+</P>
+<br><a name="SEC2" href="#TOC1">BUILDING 8-BIT and 16-BIT LIBRARIES</a><br>
+<P>
+By default, a library called <b>libpcre</b> is built, containing functions that
+take string arguments contained in vectors of bytes, either as single-byte
+characters, or interpreted as UTF-8 strings. You can also build a separate
+library, called <b>libpcre16</b>, in which strings are contained in vectors of
+16-bit data units and interpreted either as single-unit characters or UTF-16
+strings, by adding
+<pre>
+  --enable-pcre16
+</pre>
+to the <b>configure</b> command. If you do not want the 8-bit library, add
+<pre>
+  --disable-pcre8
+</pre>
+as well. At least one of the two libraries must be built. Note that the C++ and
+POSIX wrappers are for the 8-bit library only, and that <b>pcregrep</b> is an
+8-bit program. None of these are built if you select only the 16-bit library.
+</P>
+<br><a name="SEC3" href="#TOC1">BUILDING SHARED AND STATIC LIBRARIES</a><br>
+<P>
+The PCRE building process uses <b>libtool</b> to build both shared and static
+Unix libraries by default. You can suppress one of these by adding one of
+<pre>
+  --disable-shared
+  --disable-static
+</pre>
+to the <b>configure</b> command, as required.
+</P>
+<br><a name="SEC4" href="#TOC1">C++ SUPPORT</a><br>
+<P>
+By default, if the 8-bit library is being built, the <b>configure</b> script
+will search for a C++ compiler and C++ header files. If it finds them, it
+automatically builds the C++ wrapper library (which supports only 8-bit
+strings). You can disable this by adding
+<pre>
+  --disable-cpp
+</pre>
+to the <b>configure</b> command.
+</P>
+<br><a name="SEC5" href="#TOC1">UTF-8 and UTF-16 SUPPORT</a><br>
+<P>
+To build PCRE with support for UTF Unicode character strings, add
+<pre>
+  --enable-utf
+</pre>
+to the <b>configure</b> command. This setting applies to both libraries, adding
+support for UTF-8 to the 8-bit library and support for UTF-16 to the 16-bit
+library. There are no separate options for enabling UTF-8 and UTF-16
+independently because that would allow ridiculous settings such as requesting
+UTF-16 support while building only the 8-bit library. It is not possible to
+build one library with UTF support and the other without in the same
+configuration. (For backwards compatibility, --enable-utf8 is a synonym of
+--enable-utf.)
+</P>
+<P>
+Of itself, this setting does not make PCRE treat strings as UTF-8 or UTF-16. As
+well as compiling PCRE with this option, you also have have to set the
+PCRE_UTF8 or PCRE_UTF16 option when you call one of the pattern compiling
+functions.
+</P>
+<P>
+If you set --enable-utf when compiling in an EBCDIC environment, PCRE expects
+its input to be either ASCII or UTF-8 (depending on the run-time option). It is
+not possible to support both EBCDIC and UTF-8 codes in the same version of the
+library. Consequently, --enable-utf and --enable-ebcdic are mutually
+exclusive.
+</P>
+<br><a name="SEC6" href="#TOC1">UNICODE CHARACTER PROPERTY SUPPORT</a><br>
+<P>
+UTF support allows the libraries to process character codepoints up to 0x10ffff
+in the strings that they handle. On its own, however, it does not provide any
+facilities for accessing the properties of such characters. If you want to be
+able to use the pattern escapes \P, \p, and \X, which refer to Unicode
+character properties, you must add
+<pre>
+  --enable-unicode-properties
+</pre>
+to the <b>configure</b> command. This implies UTF support, even if you have
+not explicitly requested it.
+</P>
+<P>
+Including Unicode property support adds around 30K of tables to the PCRE
+library. Only the general category properties such as <i>Lu</i> and <i>Nd</i> are
+supported. Details are given in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation.
+</P>
+<br><a name="SEC7" href="#TOC1">JUST-IN-TIME COMPILER SUPPORT</a><br>
+<P>
+Just-in-time compiler support is included in the build by specifying
+<pre>
+  --enable-jit
+</pre>
+This support is available only for certain hardware architectures. If this
+option is set for an unsupported architecture, a compile time error occurs.
+See the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation for a discussion of JIT usage. When JIT support is enabled,
+pcregrep automatically makes use of it, unless you add
+<pre>
+  --disable-pcregrep-jit
+</pre>
+to the "configure" command.
+</P>
+<br><a name="SEC8" href="#TOC1">CODE VALUE OF NEWLINE</a><br>
+<P>
+By default, PCRE interprets the linefeed (LF) character as indicating the end
+of a line. This is the normal newline character on Unix-like systems. You can
+compile PCRE to use carriage return (CR) instead, by adding
+<pre>
+  --enable-newline-is-cr
+</pre>
+to the <b>configure</b> command. There is also a --enable-newline-is-lf option,
+which explicitly specifies linefeed as the newline character.
+<br>
+<br>
+Alternatively, you can specify that line endings are to be indicated by the two
+character sequence CRLF. If you want this, add
+<pre>
+  --enable-newline-is-crlf
+</pre>
+to the <b>configure</b> command. There is a fourth option, specified by
+<pre>
+  --enable-newline-is-anycrlf
+</pre>
+which causes PCRE to recognize any of the three sequences CR, LF, or CRLF as
+indicating a line ending. Finally, a fifth option, specified by
+<pre>
+  --enable-newline-is-any
+</pre>
+causes PCRE to recognize any Unicode newline sequence.
+</P>
+<P>
+Whatever line ending convention is selected when PCRE is built can be
+overridden when the library functions are called. At build time it is
+conventional to use the standard for your operating system.
+</P>
+<br><a name="SEC9" href="#TOC1">WHAT \R MATCHES</a><br>
+<P>
+By default, the sequence \R in a pattern matches any Unicode newline sequence,
+whatever has been selected as the line ending sequence. If you specify
+<pre>
+  --enable-bsr-anycrlf
+</pre>
+the default is changed so that \R matches only CR, LF, or CRLF. Whatever is
+selected when PCRE is built can be overridden when the library functions are
+called.
+</P>
+<br><a name="SEC10" href="#TOC1">POSIX MALLOC USAGE</a><br>
+<P>
+When the 8-bit library is called through the POSIX interface (see the
+<a href="pcreposix.html"><b>pcreposix</b></a>
+documentation), additional working storage is required for holding the pointers
+to capturing substrings, because PCRE requires three integers per substring,
+whereas the POSIX interface provides only two. If the number of expected
+substrings is small, the wrapper function uses space on the stack, because this
+is faster than using <b>malloc()</b> for each call. The default threshold above
+which the stack is no longer used is 10; it can be changed by adding a setting
+such as
+<pre>
+  --with-posix-malloc-threshold=20
+</pre>
+to the <b>configure</b> command.
+</P>
+<br><a name="SEC11" href="#TOC1">HANDLING VERY LARGE PATTERNS</a><br>
+<P>
+Within a compiled pattern, offset values are used to point from one part to
+another (for example, from an opening parenthesis to an alternation
+metacharacter). By default, two-byte values are used for these offsets, leading
+to a maximum size for a compiled pattern of around 64K. This is sufficient to
+handle all but the most gigantic patterns. Nevertheless, some people do want to
+process truly enormous patterns, so it is possible to compile PCRE to use
+three-byte or four-byte offsets by adding a setting such as
+<pre>
+  --with-link-size=3
+</pre>
+to the <b>configure</b> command. The value given must be 2, 3, or 4. For the
+16-bit library, a value of 3 is rounded up to 4. Using longer offsets slows
+down the operation of PCRE because it has to load additional data when handling
+them.
+</P>
+<br><a name="SEC12" href="#TOC1">AVOIDING EXCESSIVE STACK USAGE</a><br>
+<P>
+When matching with the <b>pcre_exec()</b> function, PCRE implements backtracking
+by making recursive calls to an internal function called <b>match()</b>. In
+environments where the size of the stack is limited, this can severely limit
+PCRE's operation. (The Unix environment does not usually suffer from this
+problem, but it may sometimes be necessary to increase the maximum stack size.
+There is a discussion in the
+<a href="pcrestack.html"><b>pcrestack</b></a>
+documentation.) An alternative approach to recursion that uses memory from the
+heap to remember data, instead of using recursive function calls, has been
+implemented to work round the problem of limited stack size. If you want to
+build a version of PCRE that works this way, add
+<pre>
+  --disable-stack-for-recursion
+</pre>
+to the <b>configure</b> command. With this configuration, PCRE will use the
+<b>pcre_stack_malloc</b> and <b>pcre_stack_free</b> variables to call memory
+management functions. By default these point to <b>malloc()</b> and
+<b>free()</b>, but you can replace the pointers so that your own functions are
+used instead.
+</P>
+<P>
+Separate functions are provided rather than using <b>pcre_malloc</b> and
+<b>pcre_free</b> because the usage is very predictable: the block sizes
+requested are always the same, and the blocks are always freed in reverse
+order. A calling program might be able to implement optimized functions that
+perform better than <b>malloc()</b> and <b>free()</b>. PCRE runs noticeably more
+slowly when built in this way. This option affects only the <b>pcre_exec()</b>
+function; it is not relevant for <b>pcre_dfa_exec()</b>.
+</P>
+<br><a name="SEC13" href="#TOC1">LIMITING PCRE RESOURCE USAGE</a><br>
+<P>
+Internally, PCRE has a function called <b>match()</b>, which it calls repeatedly
+(sometimes recursively) when matching a pattern with the <b>pcre_exec()</b>
+function. By controlling the maximum number of times this function may be
+called during a single matching operation, a limit can be placed on the
+resources used by a single call to <b>pcre_exec()</b>. The limit can be changed
+at run time, as described in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation. The default is 10 million, but this can be changed by adding a
+setting such as
+<pre>
+  --with-match-limit=500000
+</pre>
+to the <b>configure</b> command. This setting has no effect on the
+<b>pcre_dfa_exec()</b> matching function.
+</P>
+<P>
+In some environments it is desirable to limit the depth of recursive calls of
+<b>match()</b> more strictly than the total number of calls, in order to
+restrict the maximum amount of stack (or heap, if --disable-stack-for-recursion
+is specified) that is used. A second limit controls this; it defaults to the
+value that is set for --with-match-limit, which imposes no additional
+constraints. However, you can set a lower limit by adding, for example,
+<pre>
+  --with-match-limit-recursion=10000
+</pre>
+to the <b>configure</b> command. This value can also be overridden at run time.
+</P>
+<br><a name="SEC14" href="#TOC1">CREATING CHARACTER TABLES AT BUILD TIME</a><br>
+<P>
+PCRE uses fixed tables for processing characters whose code values are less
+than 256. By default, PCRE is built with a set of tables that are distributed
+in the file <i>pcre_chartables.c.dist</i>. These tables are for ASCII codes
+only. If you add
+<pre>
+  --enable-rebuild-chartables
+</pre>
+to the <b>configure</b> command, the distributed tables are no longer used.
+Instead, a program called <b>dftables</b> is compiled and run. This outputs the
+source for new set of tables, created in the default locale of your C run-time
+system. (This method of replacing the tables does not work if you are cross
+compiling, because <b>dftables</b> is run on the local host. If you need to
+create alternative tables when cross compiling, you will have to do so "by
+hand".)
+</P>
+<br><a name="SEC15" href="#TOC1">USING EBCDIC CODE</a><br>
+<P>
+PCRE assumes by default that it will run in an environment where the character
+code is ASCII (or Unicode, which is a superset of ASCII). This is the case for
+most computer operating systems. PCRE can, however, be compiled to run in an
+EBCDIC environment by adding
+<pre>
+  --enable-ebcdic
+</pre>
+to the <b>configure</b> command. This setting implies
+--enable-rebuild-chartables. You should only use it if you know that you are in
+an EBCDIC environment (for example, an IBM mainframe operating system). The
+--enable-ebcdic option is incompatible with --enable-utf.
+</P>
+<br><a name="SEC16" href="#TOC1">PCREGREP OPTIONS FOR COMPRESSED FILE SUPPORT</a><br>
+<P>
+By default, <b>pcregrep</b> reads all files as plain text. You can build it so
+that it recognizes files whose names end in <b>.gz</b> or <b>.bz2</b>, and reads
+them with <b>libz</b> or <b>libbz2</b>, respectively, by adding one or both of
+<pre>
+  --enable-pcregrep-libz
+  --enable-pcregrep-libbz2
+</pre>
+to the <b>configure</b> command. These options naturally require that the
+relevant libraries are installed on your system. Configuration will fail if
+they are not.
+</P>
+<br><a name="SEC17" href="#TOC1">PCREGREP BUFFER SIZE</a><br>
+<P>
+<b>pcregrep</b> uses an internal buffer to hold a "window" on the file it is
+scanning, in order to be able to output "before" and "after" lines when it
+finds a match. The size of the buffer is controlled by a parameter whose
+default value is 20K. The buffer itself is three times this size, but because
+of the way it is used for holding "before" lines, the longest line that is
+guaranteed to be processable is the parameter size. You can change the default
+parameter value by adding, for example,
+<pre>
+  --with-pcregrep-bufsize=50K
+</pre>
+to the <b>configure</b> command. The caller of \fPpcregrep\fP can, however,
+override this value by specifying a run-time option.
+</P>
+<br><a name="SEC18" href="#TOC1">PCRETEST OPTION FOR LIBREADLINE SUPPORT</a><br>
+<P>
+If you add
+<pre>
+  --enable-pcretest-libreadline
+</pre>
+to the <b>configure</b> command, <b>pcretest</b> is linked with the
+<b>libreadline</b> library, and when its input is from a terminal, it reads it
+using the <b>readline()</b> function. This provides line-editing and history
+facilities. Note that <b>libreadline</b> is GPL-licensed, so if you distribute a
+binary of <b>pcretest</b> linked in this way, there may be licensing issues.
+</P>
+<P>
+Setting this option causes the <b>-lreadline</b> option to be added to the
+<b>pcretest</b> build. In many operating environments with a sytem-installed
+<b>libreadline</b> this is sufficient. However, in some environments (e.g.
+if an unmodified distribution version of readline is in use), some extra
+configuration may be necessary. The INSTALL file for <b>libreadline</b> says
+this:
+<pre>
+  "Readline uses the termcap functions, but does not link with the
+  termcap or curses library itself, allowing applications which link
+  with readline the to choose an appropriate library."
+</pre>
+If your environment has not been set up so that an appropriate library is
+automatically included, you may need to add something like
+<pre>
+  LIBS="-ncurses"
+</pre>
+immediately before the <b>configure</b> command.
+</P>
+<br><a name="SEC19" href="#TOC1">SEE ALSO</a><br>
+<P>
+<b>pcreapi</b>(3), <b>pcre16</b>, <b>pcre_config</b>(3).
+</P>
+<br><a name="SEC20" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC21" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 07 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrecallout.html b/8.31/doc/html/pcrecallout.html
new file mode 100644
index 0000000..8076cee
--- /dev/null
+++ b/8.31/doc/html/pcrecallout.html
@@ -0,0 +1,232 @@
+<html>
+<head>
+<title>pcrecallout specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrecallout man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PCRE CALLOUTS</a>
+<li><a name="TOC2" href="#SEC2">MISSING CALLOUTS</a>
+<li><a name="TOC3" href="#SEC3">THE CALLOUT INTERFACE</a>
+<li><a name="TOC4" href="#SEC4">RETURN VALUES</a>
+<li><a name="TOC5" href="#SEC5">AUTHOR</a>
+<li><a name="TOC6" href="#SEC6">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">PCRE CALLOUTS</a><br>
+<P>
+<b>int (*pcre_callout)(pcre_callout_block *);</b>
+</P>
+<P>
+<b>int (*pcre16_callout)(pcre16_callout_block *);</b>
+</P>
+<P>
+PCRE provides a feature called "callout", which is a means of temporarily
+passing control to the caller of PCRE in the middle of pattern matching. The
+caller of PCRE provides an external function by putting its entry point in the
+global variable <i>pcre_callout</i> (<i>pcre16_callout</i> for the 16-bit
+library). By default, this variable contains NULL, which disables all calling
+out.
+</P>
+<P>
+Within a regular expression, (?C) indicates the points at which the external
+function is to be called. Different callout points can be identified by putting
+a number less than 256 after the letter C. The default value is zero.
+For example, this pattern has two callout points:
+<pre>
+  (?C1)abc(?C2)def
+</pre>
+If the PCRE_AUTO_CALLOUT option bit is set when a pattern is compiled, PCRE
+automatically inserts callouts, all with number 255, before each item in the
+pattern. For example, if PCRE_AUTO_CALLOUT is used with the pattern
+<pre>
+  A(\d{2}|--)
+</pre>
+it is processed as if it were
+<br>
+<br>
+(?C255)A(?C255)((?C255)\d{2}(?C255)|(?C255)-(?C255)-(?C255))(?C255)
+<br>
+<br>
+Notice that there is a callout before and after each parenthesis and
+alternation bar. Automatic callouts can be used for tracking the progress of
+pattern matching. The
+<a href="pcretest.html"><b>pcretest</b></a>
+command has an option that sets automatic callouts; when it is used, the output
+indicates how the pattern is matched. This is useful information when you are
+trying to optimize the performance of a particular pattern.
+</P>
+<P>
+The use of callouts in a pattern makes it ineligible for optimization by the
+just-in-time compiler. Studying such a pattern with the PCRE_STUDY_JIT_COMPILE
+option always fails.
+</P>
+<br><a name="SEC2" href="#TOC1">MISSING CALLOUTS</a><br>
+<P>
+You should be aware that, because of optimizations in the way PCRE matches
+patterns by default, callouts sometimes do not happen. For example, if the
+pattern is
+<pre>
+  ab(?C4)cd
+</pre>
+PCRE knows that any matching string must contain the letter "d". If the subject
+string is "abyz", the lack of "d" means that matching doesn't ever start, and
+the callout is never reached. However, with "abyd", though the result is still
+no match, the callout is obeyed.
+</P>
+<P>
+If the pattern is studied, PCRE knows the minimum length of a matching string,
+and will immediately give a "no match" return without actually running a match
+if the subject is not long enough, or, for unanchored patterns, if it has
+been scanned far enough.
+</P>
+<P>
+You can disable these optimizations by passing the PCRE_NO_START_OPTIMIZE
+option to the matching function, or by starting the pattern with
+(*NO_START_OPT). This slows down the matching process, but does ensure that
+callouts such as the example above are obeyed.
+</P>
+<br><a name="SEC3" href="#TOC1">THE CALLOUT INTERFACE</a><br>
+<P>
+During matching, when PCRE reaches a callout point, the external function
+defined by <i>pcre_callout</i> or <i>pcre16_callout</i> is called (if it is set).
+This applies to both normal and DFA matching. The only argument to the callout
+function is a pointer to a <b>pcre_callout</b> or <b>pcre16_callout</b> block.
+These structures contains the following fields:
+<pre>
+  int           <i>version</i>;
+  int           <i>callout_number</i>;
+  int          *<i>offset_vector</i>;
+  const char   *<i>subject</i>;           (8-bit version)
+  PCRE_SPTR16   <i>subject</i>;           (16-bit version)
+  int           <i>subject_length</i>;
+  int           <i>start_match</i>;
+  int           <i>current_position</i>;
+  int           <i>capture_top</i>;
+  int           <i>capture_last</i>;
+  void         *<i>callout_data</i>;
+  int           <i>pattern_position</i>;
+  int           <i>next_item_length</i>;
+  const unsigned char *<i>mark</i>;       (8-bit version)
+  const PCRE_UCHAR16  *<i>mark</i>;       (16-bit version)
+</pre>
+The <i>version</i> field is an integer containing the version number of the
+block format. The initial version was 0; the current version is 2. The version
+number will change again in future if additional fields are added, but the
+intention is never to remove any of the existing fields.
+</P>
+<P>
+The <i>callout_number</i> field contains the number of the callout, as compiled
+into the pattern (that is, the number after ?C for manual callouts, and 255 for
+automatically generated callouts).
+</P>
+<P>
+The <i>offset_vector</i> field is a pointer to the vector of offsets that was
+passed by the caller to the matching function. When <b>pcre_exec()</b> or
+<b>pcre16_exec()</b> is used, the contents can be inspected, in order to extract
+substrings that have been matched so far, in the same way as for extracting
+substrings after a match has completed. For the DFA matching functions, this
+field is not useful.
+</P>
+<P>
+The <i>subject</i> and <i>subject_length</i> fields contain copies of the values
+that were passed to the matching function.
+</P>
+<P>
+The <i>start_match</i> field normally contains the offset within the subject at
+which the current match attempt started. However, if the escape sequence \K
+has been encountered, this value is changed to reflect the modified starting
+point. If the pattern is not anchored, the callout function may be called
+several times from the same point in the pattern for different starting points
+in the subject.
+</P>
+<P>
+The <i>current_position</i> field contains the offset within the subject of the
+current match pointer.
+</P>
+<P>
+When the <b>pcre_exec()</b> or <b>pcre16_exec()</b> is used, the
+<i>capture_top</i> field contains one more than the number of the highest
+numbered captured substring so far. If no substrings have been captured, the
+value of <i>capture_top</i> is one. This is always the case when the DFA
+functions are used, because they do not support captured substrings.
+</P>
+<P>
+The <i>capture_last</i> field contains the number of the most recently captured
+substring. If no substrings have been captured, its value is -1. This is always
+the case for the DFA matching functions.
+</P>
+<P>
+The <i>callout_data</i> field contains a value that is passed to a matching
+function specifically so that it can be passed back in callouts. It is passed
+in the <i>callout_data</i> field of a <b>pcre_extra</b> or <b>pcre16_extra</b>
+data structure. If no such data was passed, the value of <i>callout_data</i> in
+a callout block is NULL. There is a description of the <b>pcre_extra</b>
+structure in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation.
+</P>
+<P>
+The <i>pattern_position</i> field is present from version 1 of the callout
+structure. It contains the offset to the next item to be matched in the pattern
+string.
+</P>
+<P>
+The <i>next_item_length</i> field is present from version 1 of the callout
+structure. It contains the length of the next item to be matched in the pattern
+string. When the callout immediately precedes an alternation bar, a closing
+parenthesis, or the end of the pattern, the length is zero. When the callout
+precedes an opening parenthesis, the length is that of the entire subpattern.
+</P>
+<P>
+The <i>pattern_position</i> and <i>next_item_length</i> fields are intended to
+help in distinguishing between different automatic callouts, which all have the
+same callout number. However, they are set for all callouts.
+</P>
+<P>
+The <i>mark</i> field is present from version 2 of the callout structure. In
+callouts from <b>pcre_exec()</b> or <b>pcre16_exec()</b> it contains a pointer to
+the zero-terminated name of the most recently passed (*MARK), (*PRUNE), or
+(*THEN) item in the match, or NULL if no such items have been passed. Instances
+of (*PRUNE) or (*THEN) without a name do not obliterate a previous (*MARK). In
+callouts from the DFA matching functions this field always contains NULL.
+</P>
+<br><a name="SEC4" href="#TOC1">RETURN VALUES</a><br>
+<P>
+The external callout function returns an integer to PCRE. If the value is zero,
+matching proceeds as normal. If the value is greater than zero, matching fails
+at the current point, but the testing of other matching possibilities goes
+ahead, just as if a lookahead assertion had failed. If the value is less than
+zero, the match is abandoned, the matching function returns the negative value.
+</P>
+<P>
+Negative values should normally be chosen from the set of PCRE_ERROR_xxx
+values. In particular, PCRE_ERROR_NOMATCH forces a standard "no match" failure.
+The error number PCRE_ERROR_CALLOUT is reserved for use by callout functions;
+it will never be used by PCRE itself.
+</P>
+<br><a name="SEC5" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC6" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 08 Janurary 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrecompat.html b/8.31/doc/html/pcrecompat.html
new file mode 100644
index 0000000..3f7f98f
--- /dev/null
+++ b/8.31/doc/html/pcrecompat.html
@@ -0,0 +1,220 @@
+<html>
+<head>
+<title>pcrecompat specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrecompat man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+DIFFERENCES BETWEEN PCRE AND PERL
+</b><br>
+<P>
+This document describes the differences in the ways that PCRE and Perl handle
+regular expressions. The differences described here are with respect to Perl
+versions 5.10 and above.
+</P>
+<P>
+1. PCRE has only a subset of Perl's Unicode support. Details of what it does
+have are given in the
+<a href="pcreunicode.html"><b>pcreunicode</b></a>
+page.
+</P>
+<P>
+2. PCRE allows repeat quantifiers only on parenthesized assertions, but they do
+not mean what you might think. For example, (?!a){3} does not assert that the
+next three characters are not "a". It just asserts that the next character is
+not "a" three times (in principle: PCRE optimizes this to run the assertion
+just once). Perl allows repeat quantifiers on other assertions such as \b, but
+these do not seem to have any use.
+</P>
+<P>
+3. Capturing subpatterns that occur inside negative lookahead assertions are
+counted, but their entries in the offsets vector are never set. Perl sets its
+numerical variables from any such patterns that are matched before the
+assertion fails to match something (thereby succeeding), but only if the
+negative lookahead assertion contains just one branch.
+</P>
+<P>
+4. Though binary zero characters are supported in the subject string, they are
+not allowed in a pattern string because it is passed as a normal C string,
+terminated by zero. The escape sequence \0 can be used in the pattern to
+represent a binary zero.
+</P>
+<P>
+5. The following Perl escape sequences are not supported: \l, \u, \L,
+\U, and \N when followed by a character name or Unicode value. (\N on its
+own, matching a non-newline character, is supported.) In fact these are
+implemented by Perl's general string-handling and are not part of its pattern
+matching engine. If any of these are encountered by PCRE, an error is
+generated by default. However, if the PCRE_JAVASCRIPT_COMPAT option is set,
+\U and \u are interpreted as JavaScript interprets them.
+</P>
+<P>
+6. The Perl escape sequences \p, \P, and \X are supported only if PCRE is
+built with Unicode character property support. The properties that can be
+tested with \p and \P are limited to the general category properties such as
+Lu and Nd, script names such as Greek or Han, and the derived properties Any
+and L&. PCRE does support the Cs (surrogate) property, which Perl does not; the
+Perl documentation says "Because Perl hides the need for the user to understand
+the internal representation of Unicode characters, there is no need to
+implement the somewhat messy concept of surrogates."
+</P>
+<P>
+7. PCRE implements a simpler version of \X than Perl, which changed to make
+\X match what Unicode calls an "extended grapheme cluster". This is more
+complicated than an extended Unicode sequence, which is what PCRE matches.
+</P>
+<P>
+8. PCRE does support the \Q...\E escape for quoting substrings. Characters in
+between are treated as literals. This is slightly different from Perl in that $
+and @ are also handled as literals inside the quotes. In Perl, they cause
+variable interpolation (but of course PCRE does not have variables). Note the
+following examples:
+<pre>
+    Pattern            PCRE matches      Perl matches
+
+    \Qabc$xyz\E        abc$xyz           abc followed by the contents of $xyz
+    \Qabc\$xyz\E       abc\$xyz          abc\$xyz
+    \Qabc\E\$\Qxyz\E   abc$xyz           abc$xyz
+</pre>
+The \Q...\E sequence is recognized both inside and outside character classes.
+</P>
+<P>
+9. Fairly obviously, PCRE does not support the (?{code}) and (??{code})
+constructions. However, there is support for recursive patterns. This is not
+available in Perl 5.8, but it is in Perl 5.10. Also, the PCRE "callout"
+feature allows an external function to be called during pattern matching. See
+the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation for details.
+</P>
+<P>
+10. Subpatterns that are called as subroutines (whether or not recursively) are
+always treated as atomic groups in PCRE. This is like Python, but unlike Perl.
+Captured values that are set outside a subroutine call can be reference from
+inside in PCRE, but not in Perl. There is a discussion that explains these
+differences in more detail in the
+<a href="pcrepattern.html#recursiondifference">section on recursion differences from Perl</a>
+in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+page.
+</P>
+<P>
+11. If any of the backtracking control verbs are used in an assertion or in a
+subpattern that is called as a subroutine (whether or not recursively), their
+effect is confined to that subpattern; it does not extend to the surrounding
+pattern. This is not always the case in Perl. In particular, if (*THEN) is
+present in a group that is called as a subroutine, its action is limited to
+that group, even if the group does not contain any | characters. There is one
+exception to this: the name from a *(MARK), (*PRUNE), or (*THEN) that is
+encountered in a successful positive assertion <i>is</i> passed back when a
+match succeeds (compare capturing parentheses in assertions). Note that such
+subpatterns are processed as anchored at the point where they are tested.
+</P>
+<P>
+12. There are some differences that are concerned with the settings of captured
+strings when part of a pattern is repeated. For example, matching "aba" against
+the pattern /^(a(b)?)+$/ in Perl leaves $2 unset, but in PCRE it is set to "b".
+</P>
+<P>
+13. PCRE's handling of duplicate subpattern numbers and duplicate subpattern
+names is not as general as Perl's. This is a consequence of the fact the PCRE
+works internally just with numbers, using an external table to translate
+between numbers and names. In particular, a pattern such as (?|(?&#60;a&#62;A)|(?&#60;b)B),
+where the two capturing parentheses have the same number but different names,
+is not supported, and causes an error at compile time. If it were allowed, it
+would not be possible to distinguish which parentheses matched, because both
+names map to capturing subpattern number 1. To avoid this confusing situation,
+an error is given at compile time.
+</P>
+<P>
+14. Perl recognizes comments in some places that PCRE does not, for example,
+between the ( and ? at the start of a subpattern. If the /x modifier is set,
+Perl allows white space between ( and ? but PCRE never does, even if the
+PCRE_EXTENDED option is set.
+</P>
+<P>
+15. PCRE provides some extensions to the Perl regular expression facilities.
+Perl 5.10 includes new features that are not in earlier versions of Perl, some
+of which (such as named parentheses) have been in PCRE for some time. This list
+is with respect to Perl 5.10:
+<br>
+<br>
+(a) Although lookbehind assertions in PCRE must match fixed length strings,
+each alternative branch of a lookbehind assertion can match a different length
+of string. Perl requires them all to have the same length.
+<br>
+<br>
+(b) If PCRE_DOLLAR_ENDONLY is set and PCRE_MULTILINE is not set, the $
+meta-character matches only at the very end of the string.
+<br>
+<br>
+(c) If PCRE_EXTRA is set, a backslash followed by a letter with no special
+meaning is faulted. Otherwise, like Perl, the backslash is quietly ignored.
+(Perl can be made to issue a warning.)
+<br>
+<br>
+(d) If PCRE_UNGREEDY is set, the greediness of the repetition quantifiers is
+inverted, that is, by default they are not greedy, but if followed by a
+question mark they are.
+<br>
+<br>
+(e) PCRE_ANCHORED can be used at matching time to force a pattern to be tried
+only at the first matching position in the subject string.
+<br>
+<br>
+(f) The PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART, and
+PCRE_NO_AUTO_CAPTURE options for <b>pcre_exec()</b> have no Perl equivalents.
+<br>
+<br>
+(g) The \R escape sequence can be restricted to match only CR, LF, or CRLF
+by the PCRE_BSR_ANYCRLF option.
+<br>
+<br>
+(h) The callout facility is PCRE-specific.
+<br>
+<br>
+(i) The partial matching facility is PCRE-specific.
+<br>
+<br>
+(j) Patterns compiled by PCRE can be saved and re-used at a later time, even on
+different hosts that have the other endianness. However, this does not apply to
+optimized data created by the just-in-time compiler.
+<br>
+<br>
+(k) The alternative matching functions (<b>pcre_dfa_exec()</b> and
+<b>pcre16_dfa_exec()</b>) match in a different way and are not Perl-compatible.
+<br>
+<br>
+(l) PCRE recognizes some special sequences such as (*CR) at the start of
+a pattern that set overall options that cannot be changed within the pattern.
+</P>
+<br><b>
+AUTHOR
+</b><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><b>
+REVISION
+</b><br>
+<P>
+Last updated: 01 June 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrecpp.html b/8.31/doc/html/pcrecpp.html
new file mode 100644
index 0000000..48e0656
--- /dev/null
+++ b/8.31/doc/html/pcrecpp.html
@@ -0,0 +1,368 @@
+<html>
+<head>
+<title>pcrecpp specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrecpp man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">SYNOPSIS OF C++ WRAPPER</a>
+<li><a name="TOC2" href="#SEC2">DESCRIPTION</a>
+<li><a name="TOC3" href="#SEC3">MATCHING INTERFACE</a>
+<li><a name="TOC4" href="#SEC4">QUOTING METACHARACTERS</a>
+<li><a name="TOC5" href="#SEC5">PARTIAL MATCHES</a>
+<li><a name="TOC6" href="#SEC6">UTF-8 AND THE MATCHING INTERFACE</a>
+<li><a name="TOC7" href="#SEC7">PASSING MODIFIERS TO THE REGULAR EXPRESSION ENGINE</a>
+<li><a name="TOC8" href="#SEC8">SCANNING TEXT INCREMENTALLY</a>
+<li><a name="TOC9" href="#SEC9">PARSING HEX/OCTAL/C-RADIX NUMBERS</a>
+<li><a name="TOC10" href="#SEC10">REPLACING PARTS OF STRINGS</a>
+<li><a name="TOC11" href="#SEC11">AUTHOR</a>
+<li><a name="TOC12" href="#SEC12">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">SYNOPSIS OF C++ WRAPPER</a><br>
+<P>
+<b>#include &#60;pcrecpp.h&#62;</b>
+</P>
+<br><a name="SEC2" href="#TOC1">DESCRIPTION</a><br>
+<P>
+The C++ wrapper for PCRE was provided by Google Inc. Some additional
+functionality was added by Giuseppe Maxia. This brief man page was constructed
+from the notes in the <i>pcrecpp.h</i> file, which should be consulted for
+further details. Note that the C++ wrapper supports only the original 8-bit
+PCRE library. There is no 16-bit support at present.
+</P>
+<br><a name="SEC3" href="#TOC1">MATCHING INTERFACE</a><br>
+<P>
+The "FullMatch" operation checks that supplied text matches a supplied pattern
+exactly. If pointer arguments are supplied, it copies matched sub-strings that
+match sub-patterns into them.
+<pre>
+  Example: successful match
+     pcrecpp::RE re("h.*o");
+     re.FullMatch("hello");
+
+  Example: unsuccessful match (requires full match):
+     pcrecpp::RE re("e");
+     !re.FullMatch("hello");
+
+  Example: creating a temporary RE object:
+     pcrecpp::RE("h.*o").FullMatch("hello");
+</pre>
+You can pass in a "const char*" or a "string" for "text". The examples below
+tend to use a const char*. You can, as in the different examples above, store
+the RE object explicitly in a variable or use a temporary RE object. The
+examples below use one mode or the other arbitrarily. Either could correctly be
+used for any of these examples.
+</P>
+<P>
+You must supply extra pointer arguments to extract matched subpieces.
+<pre>
+  Example: extracts "ruby" into "s" and 1234 into "i"
+     int i;
+     string s;
+     pcrecpp::RE re("(\\w+):(\\d+)");
+     re.FullMatch("ruby:1234", &s, &i);
+
+  Example: does not try to extract any extra sub-patterns
+     re.FullMatch("ruby:1234", &s);
+
+  Example: does not try to extract into NULL
+     re.FullMatch("ruby:1234", NULL, &i);
+
+  Example: integer overflow causes failure
+     !re.FullMatch("ruby:1234567891234", NULL, &i);
+
+  Example: fails because there aren't enough sub-patterns:
+     !pcrecpp::RE("\\w+:\\d+").FullMatch("ruby:1234", &s);
+
+  Example: fails because string cannot be stored in integer
+     !pcrecpp::RE("(.*)").FullMatch("ruby", &i);
+</pre>
+The provided pointer arguments can be pointers to any scalar numeric
+type, or one of:
+<pre>
+   string        (matched piece is copied to string)
+   StringPiece   (StringPiece is mutated to point to matched piece)
+   T             (where "bool T::ParseFrom(const char*, int)" exists)
+   NULL          (the corresponding matched sub-pattern is not copied)
+</pre>
+The function returns true iff all of the following conditions are satisfied:
+<pre>
+  a. "text" matches "pattern" exactly;
+
+  b. The number of matched sub-patterns is &#62;= number of supplied
+     pointers;
+
+  c. The "i"th argument has a suitable type for holding the
+     string captured as the "i"th sub-pattern. If you pass in
+     void * NULL for the "i"th argument, or a non-void * NULL
+     of the correct type, or pass fewer arguments than the
+     number of sub-patterns, "i"th captured sub-pattern is
+     ignored.
+</pre>
+CAVEAT: An optional sub-pattern that does not exist in the matched
+string is assigned the empty string. Therefore, the following will
+return false (because the empty string is not a valid number):
+<pre>
+   int number;
+   pcrecpp::RE::FullMatch("abc", "[a-z]+(\\d+)?", &number);
+</pre>
+The matching interface supports at most 16 arguments per call.
+If you need more, consider using the more general interface
+<b>pcrecpp::RE::DoMatch</b>. See <b>pcrecpp.h</b> for the signature for
+<b>DoMatch</b>.
+</P>
+<P>
+NOTE: Do not use <b>no_arg</b>, which is used internally to mark the end of a
+list of optional arguments, as a placeholder for missing arguments, as this can
+lead to segfaults.
+</P>
+<br><a name="SEC4" href="#TOC1">QUOTING METACHARACTERS</a><br>
+<P>
+You can use the "QuoteMeta" operation to insert backslashes before all
+potentially meaningful characters in a string. The returned string, used as a
+regular expression, will exactly match the original string.
+<pre>
+  Example:
+     string quoted = RE::QuoteMeta(unquoted);
+</pre>
+Note that it's legal to escape a character even if it has no special meaning in
+a regular expression -- so this function does that. (This also makes it
+identical to the perl function of the same name; see "perldoc -f quotemeta".)
+For example, "1.5-2.0?" becomes "1\.5\-2\.0\?".
+</P>
+<br><a name="SEC5" href="#TOC1">PARTIAL MATCHES</a><br>
+<P>
+You can use the "PartialMatch" operation when you want the pattern
+to match any substring of the text.
+<pre>
+  Example: simple search for a string:
+     pcrecpp::RE("ell").PartialMatch("hello");
+
+  Example: find first number in a string:
+     int number;
+     pcrecpp::RE re("(\\d+)");
+     re.PartialMatch("x*100 + 20", &number);
+     assert(number == 100);
+</PRE>
+</P>
+<br><a name="SEC6" href="#TOC1">UTF-8 AND THE MATCHING INTERFACE</a><br>
+<P>
+By default, pattern and text are plain text, one byte per character. The UTF8
+flag, passed to the constructor, causes both pattern and string to be treated
+as UTF-8 text, still a byte stream but potentially multiple bytes per
+character. In practice, the text is likelier to be UTF-8 than the pattern, but
+the match returned may depend on the UTF8 flag, so always use it when matching
+UTF8 text. For example, "." will match one byte normally but with UTF8 set may
+match up to three bytes of a multi-byte character.
+<pre>
+  Example:
+     pcrecpp::RE_Options options;
+     options.set_utf8();
+     pcrecpp::RE re(utf8_pattern, options);
+     re.FullMatch(utf8_string);
+
+  Example: using the convenience function UTF8():
+     pcrecpp::RE re(utf8_pattern, pcrecpp::UTF8());
+     re.FullMatch(utf8_string);
+</pre>
+NOTE: The UTF8 flag is ignored if pcre was not configured with the
+<pre>
+      --enable-utf8 flag.
+</PRE>
+</P>
+<br><a name="SEC7" href="#TOC1">PASSING MODIFIERS TO THE REGULAR EXPRESSION ENGINE</a><br>
+<P>
+PCRE defines some modifiers to change the behavior of the regular expression
+engine. The C++ wrapper defines an auxiliary class, RE_Options, as a vehicle to
+pass such modifiers to a RE class. Currently, the following modifiers are
+supported:
+<pre>
+   modifier              description               Perl corresponding
+
+   PCRE_CASELESS         case insensitive match      /i
+   PCRE_MULTILINE        multiple lines match        /m
+   PCRE_DOTALL           dot matches newlines        /s
+   PCRE_DOLLAR_ENDONLY   $ matches only at end       N/A
+   PCRE_EXTRA            strict escape parsing       N/A
+   PCRE_EXTENDED         ignore white spaces         /x
+   PCRE_UTF8             handles UTF8 chars          built-in
+   PCRE_UNGREEDY         reverses * and *?           N/A
+   PCRE_NO_AUTO_CAPTURE  disables capturing parens   N/A (*)
+</pre>
+(*) Both Perl and PCRE allow non capturing parentheses by means of the
+"?:" modifier within the pattern itself. e.g. (?:ab|cd) does not
+capture, while (ab|cd) does.
+</P>
+<P>
+For a full account on how each modifier works, please check the
+PCRE API reference page.
+</P>
+<P>
+For each modifier, there are two member functions whose name is made
+out of the modifier in lowercase, without the "PCRE_" prefix. For
+instance, PCRE_CASELESS is handled by
+<pre>
+  bool caseless()
+</pre>
+which returns true if the modifier is set, and
+<pre>
+  RE_Options & set_caseless(bool)
+</pre>
+which sets or unsets the modifier. Moreover, PCRE_EXTRA_MATCH_LIMIT can be
+accessed through the <b>set_match_limit()</b> and <b>match_limit()</b> member
+functions. Setting <i>match_limit</i> to a non-zero value will limit the
+execution of pcre to keep it from doing bad things like blowing the stack or
+taking an eternity to return a result. A value of 5000 is good enough to stop
+stack blowup in a 2MB thread stack. Setting <i>match_limit</i> to zero disables
+match limiting. Alternatively, you can call <b>match_limit_recursion()</b>
+which uses PCRE_EXTRA_MATCH_LIMIT_RECURSION to limit how much PCRE
+recurses. <b>match_limit()</b> limits the number of matches PCRE does;
+<b>match_limit_recursion()</b> limits the depth of internal recursion, and
+therefore the amount of stack that is used.
+</P>
+<P>
+Normally, to pass one or more modifiers to a RE class, you declare
+a <i>RE_Options</i> object, set the appropriate options, and pass this
+object to a RE constructor. Example:
+<pre>
+   RE_Options opt;
+   opt.set_caseless(true);
+   if (RE("HELLO", opt).PartialMatch("hello world")) ...
+</pre>
+RE_options has two constructors. The default constructor takes no arguments and
+creates a set of flags that are off by default. The optional parameter
+<i>option_flags</i> is to facilitate transfer of legacy code from C programs.
+This lets you do
+<pre>
+   RE(pattern,
+     RE_Options(PCRE_CASELESS|PCRE_MULTILINE)).PartialMatch(str);
+</pre>
+However, new code is better off doing
+<pre>
+   RE(pattern,
+     RE_Options().set_caseless(true).set_multiline(true))
+       .PartialMatch(str);
+</pre>
+If you are going to pass one of the most used modifiers, there are some
+convenience functions that return a RE_Options class with the
+appropriate modifier already set: <b>CASELESS()</b>, <b>UTF8()</b>,
+<b>MULTILINE()</b>, <b>DOTALL</b>(), and <b>EXTENDED()</b>.
+</P>
+<P>
+If you need to set several options at once, and you don't want to go through
+the pains of declaring a RE_Options object and setting several options, there
+is a parallel method that give you such ability on the fly. You can concatenate
+several <b>set_xxxxx()</b> member functions, since each of them returns a
+reference to its class object. For example, to pass PCRE_CASELESS,
+PCRE_EXTENDED, and PCRE_MULTILINE to a RE with one statement, you may write:
+<pre>
+   RE(" ^ xyz \\s+ .* blah$",
+     RE_Options()
+       .set_caseless(true)
+       .set_extended(true)
+       .set_multiline(true)).PartialMatch(sometext);
+
+</PRE>
+</P>
+<br><a name="SEC8" href="#TOC1">SCANNING TEXT INCREMENTALLY</a><br>
+<P>
+The "Consume" operation may be useful if you want to repeatedly
+match regular expressions at the front of a string and skip over
+them as they match. This requires use of the "StringPiece" type,
+which represents a sub-range of a real string. Like RE, StringPiece
+is defined in the pcrecpp namespace.
+<pre>
+  Example: read lines of the form "var = value" from a string.
+     string contents = ...;                 // Fill string somehow
+     pcrecpp::StringPiece input(contents);  // Wrap in a StringPiece
+
+     string var;
+     int value;
+     pcrecpp::RE re("(\\w+) = (\\d+)\n");
+     while (re.Consume(&input, &var, &value)) {
+       ...;
+     }
+</pre>
+Each successful call to "Consume" will set "var/value", and also
+advance "input" so it points past the matched text.
+</P>
+<P>
+The "FindAndConsume" operation is similar to "Consume" but does not
+anchor your match at the beginning of the string. For example, you
+could extract all words from a string by repeatedly calling
+<pre>
+  pcrecpp::RE("(\\w+)").FindAndConsume(&input, &word)
+</PRE>
+</P>
+<br><a name="SEC9" href="#TOC1">PARSING HEX/OCTAL/C-RADIX NUMBERS</a><br>
+<P>
+By default, if you pass a pointer to a numeric value, the
+corresponding text is interpreted as a base-10 number. You can
+instead wrap the pointer with a call to one of the operators Hex(),
+Octal(), or CRadix() to interpret the text in another base. The
+CRadix operator interprets C-style "0" (base-8) and "0x" (base-16)
+prefixes, but defaults to base-10.
+<pre>
+  Example:
+    int a, b, c, d;
+    pcrecpp::RE re("(.*) (.*) (.*) (.*)");
+    re.FullMatch("100 40 0100 0x40",
+                 pcrecpp::Octal(&a), pcrecpp::Hex(&b),
+                 pcrecpp::CRadix(&c), pcrecpp::CRadix(&d));
+</pre>
+will leave 64 in a, b, c, and d.
+</P>
+<br><a name="SEC10" href="#TOC1">REPLACING PARTS OF STRINGS</a><br>
+<P>
+You can replace the first match of "pattern" in "str" with "rewrite".
+Within "rewrite", backslash-escaped digits (\1 to \9) can be
+used to insert text matching corresponding parenthesized group
+from the pattern. \0 in "rewrite" refers to the entire matching
+text. For example:
+<pre>
+  string s = "yabba dabba doo";
+  pcrecpp::RE("b+").Replace("d", &s);
+</pre>
+will leave "s" containing "yada dabba doo". The result is true if the pattern
+matches and a replacement occurs, false otherwise.
+</P>
+<P>
+<b>GlobalReplace</b> is like <b>Replace</b> except that it replaces all
+occurrences of the pattern in the string with the rewrite. Replacements are
+not subject to re-matching. For example:
+<pre>
+  string s = "yabba dabba doo";
+  pcrecpp::RE("b+").GlobalReplace("d", &s);
+</pre>
+will leave "s" containing "yada dada doo". It returns the number of
+replacements made.
+</P>
+<P>
+<b>Extract</b> is like <b>Replace</b>, except that if the pattern matches,
+"rewrite" is copied into "out" (an additional argument) with substitutions.
+The non-matching portions of "text" are ignored. Returns true iff a match
+occurred and the extraction happened successfully;  if no match occurs, the
+string is left unaffected.
+</P>
+<br><a name="SEC11" href="#TOC1">AUTHOR</a><br>
+<P>
+The C++ wrapper was contributed by Google Inc.
+<br>
+Copyright &copy; 2007 Google Inc.
+<br>
+</P>
+<br><a name="SEC12" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 08 January 2012
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcredemo.html b/8.31/doc/html/pcredemo.html
new file mode 100644
index 0000000..894a930
--- /dev/null
+++ b/8.31/doc/html/pcredemo.html
@@ -0,0 +1,426 @@
+<html>
+<head>
+<title>pcredemo specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcredemo man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+</ul>
+<PRE>
+/*************************************************
+*           PCRE DEMONSTRATION PROGRAM           *
+*************************************************/
+
+/* This is a demonstration program to illustrate the most straightforward ways
+of calling the PCRE regular expression library from a C program. See the
+pcresample documentation for a short discussion ("man pcresample" if you have
+the PCRE man pages installed).
+
+In Unix-like environments, if PCRE is installed in your standard system
+libraries, you should be able to compile this program using this command:
+
+gcc -Wall pcredemo.c -lpcre -o pcredemo
+
+If PCRE is not installed in a standard place, it is likely to be installed with
+support for the pkg-config mechanism. If you have pkg-config, you can compile
+this program using this command:
+
+gcc -Wall pcredemo.c `pkg-config --cflags --libs libpcre` -o pcredemo
+
+If you do not have pkg-config, you may have to use this:
+
+gcc -Wall pcredemo.c -I/usr/local/include -L/usr/local/lib \
+  -R/usr/local/lib -lpcre -o pcredemo
+
+Replace "/usr/local/include" and "/usr/local/lib" with wherever the include and
+library files for PCRE are installed on your system. Only some operating
+systems (e.g. Solaris) use the -R option.
+
+Building under Windows:
+
+If you want to statically link this program against a non-dll .a file, you must
+define PCRE_STATIC before including pcre.h, otherwise the pcre_malloc() and
+pcre_free() exported functions will be declared __declspec(dllimport), with
+unwanted results. So in this environment, uncomment the following line. */
+
+/* #define PCRE_STATIC */
+
+#include &lt;stdio.h&gt;
+#include &lt;string.h&gt;
+#include &lt;pcre.h&gt;
+
+#define OVECCOUNT 30    /* should be a multiple of 3 */
+
+
+int main(int argc, char **argv)
+{
+pcre *re;
+const char *error;
+char *pattern;
+char *subject;
+unsigned char *name_table;
+unsigned int option_bits;
+int erroffset;
+int find_all;
+int crlf_is_newline;
+int namecount;
+int name_entry_size;
+int ovector[OVECCOUNT];
+int subject_length;
+int rc, i;
+int utf8;
+
+
+/**************************************************************************
+* First, sort out the command line. There is only one possible option at  *
+* the moment, "-g" to request repeated matching to find all occurrences,  *
+* like Perl's /g option. We set the variable find_all to a non-zero value *
+* if the -g option is present. Apart from that, there must be exactly two *
+* arguments.                                                              *
+**************************************************************************/
+
+find_all = 0;
+for (i = 1; i &lt; argc; i++)
+  {
+  if (strcmp(argv[i], "-g") == 0) find_all = 1;
+    else break;
+  }
+
+/* After the options, we require exactly two arguments, which are the pattern,
+and the subject string. */
+
+if (argc - i != 2)
+  {
+  printf("Two arguments required: a regex and a subject string\n");
+  return 1;
+  }
+
+pattern = argv[i];
+subject = argv[i+1];
+subject_length = (int)strlen(subject);
+
+
+/*************************************************************************
+* Now we are going to compile the regular expression pattern, and handle *
+* and errors that are detected.                                          *
+*************************************************************************/
+
+re = pcre_compile(
+  pattern,              /* the pattern */
+  0,                    /* default options */
+  &amp;error,               /* for error message */
+  &amp;erroffset,           /* for error offset */
+  NULL);                /* use default character tables */
+
+/* Compilation failed: print the error message and exit */
+
+if (re == NULL)
+  {
+  printf("PCRE compilation failed at offset %d: %s\n", erroffset, error);
+  return 1;
+  }
+
+
+/*************************************************************************
+* If the compilation succeeded, we call PCRE again, in order to do a     *
+* pattern match against the subject string. This does just ONE match. If *
+* further matching is needed, it will be done below.                     *
+*************************************************************************/
+
+rc = pcre_exec(
+  re,                   /* the compiled pattern */
+  NULL,                 /* no extra data - we didn't study the pattern */
+  subject,              /* the subject string */
+  subject_length,       /* the length of the subject */
+  0,                    /* start at offset 0 in the subject */
+  0,                    /* default options */
+  ovector,              /* output vector for substring information */
+  OVECCOUNT);           /* number of elements in the output vector */
+
+/* Matching failed: handle error cases */
+
+if (rc &lt; 0)
+  {
+  switch(rc)
+    {
+    case PCRE_ERROR_NOMATCH: printf("No match\n"); break;
+    /*
+    Handle other special cases if you like
+    */
+    default: printf("Matching error %d\n", rc); break;
+    }
+  pcre_free(re);     /* Release memory used for the compiled pattern */
+  return 1;
+  }
+
+/* Match succeded */
+
+printf("\nMatch succeeded at offset %d\n", ovector[0]);
+
+
+/*************************************************************************
+* We have found the first match within the subject string. If the output *
+* vector wasn't big enough, say so. Then output any substrings that were *
+* captured.                                                              *
+*************************************************************************/
+
+/* The output vector wasn't big enough */
+
+if (rc == 0)
+  {
+  rc = OVECCOUNT/3;
+  printf("ovector only has room for %d captured substrings\n", rc - 1);
+  }
+
+/* Show substrings stored in the output vector by number. Obviously, in a real
+application you might want to do things other than print them. */
+
+for (i = 0; i &lt; rc; i++)
+  {
+  char *substring_start = subject + ovector[2*i];
+  int substring_length = ovector[2*i+1] - ovector[2*i];
+  printf("%2d: %.*s\n", i, substring_length, substring_start);
+  }
+
+
+/**************************************************************************
+* That concludes the basic part of this demonstration program. We have    *
+* compiled a pattern, and performed a single match. The code that follows *
+* shows first how to access named substrings, and then how to code for    *
+* repeated matches on the same subject.                                   *
+**************************************************************************/
+
+/* See if there are any named substrings, and if so, show them by name. First
+we have to extract the count of named parentheses from the pattern. */
+
+(void)pcre_fullinfo(
+  re,                   /* the compiled pattern */
+  NULL,                 /* no extra data - we didn't study the pattern */
+  PCRE_INFO_NAMECOUNT,  /* number of named substrings */
+  &amp;namecount);          /* where to put the answer */
+
+if (namecount &lt;= 0) printf("No named substrings\n"); else
+  {
+  unsigned char *tabptr;
+  printf("Named substrings\n");
+
+  /* Before we can access the substrings, we must extract the table for
+  translating names to numbers, and the size of each entry in the table. */
+
+  (void)pcre_fullinfo(
+    re,                       /* the compiled pattern */
+    NULL,                     /* no extra data - we didn't study the pattern */
+    PCRE_INFO_NAMETABLE,      /* address of the table */
+    &amp;name_table);             /* where to put the answer */
+
+  (void)pcre_fullinfo(
+    re,                       /* the compiled pattern */
+    NULL,                     /* no extra data - we didn't study the pattern */
+    PCRE_INFO_NAMEENTRYSIZE,  /* size of each entry in the table */
+    &amp;name_entry_size);        /* where to put the answer */
+
+  /* Now we can scan the table and, for each entry, print the number, the name,
+  and the substring itself. */
+
+  tabptr = name_table;
+  for (i = 0; i &lt; namecount; i++)
+    {
+    int n = (tabptr[0] &lt;&lt; 8) | tabptr[1];
+    printf("(%d) %*s: %.*s\n", n, name_entry_size - 3, tabptr + 2,
+      ovector[2*n+1] - ovector[2*n], subject + ovector[2*n]);
+    tabptr += name_entry_size;
+    }
+  }
+
+
+/*************************************************************************
+* If the "-g" option was given on the command line, we want to continue  *
+* to search for additional matches in the subject string, in a similar   *
+* way to the /g option in Perl. This turns out to be trickier than you   *
+* might think because of the possibility of matching an empty string.    *
+* What happens is as follows:                                            *
+*                                                                        *
+* If the previous match was NOT for an empty string, we can just start   *
+* the next match at the end of the previous one.                         *
+*                                                                        *
+* If the previous match WAS for an empty string, we can't do that, as it *
+* would lead to an infinite loop. Instead, a special call of pcre_exec() *
+* is made with the PCRE_NOTEMPTY_ATSTART and PCRE_ANCHORED flags set.    *
+* The first of these tells PCRE that an empty string at the start of the *
+* subject is not a valid match; other possibilities must be tried. The   *
+* second flag restricts PCRE to one match attempt at the initial string  *
+* position. If this match succeeds, an alternative to the empty string   *
+* match has been found, and we can print it and proceed round the loop,  *
+* advancing by the length of whatever was found. If this match does not  *
+* succeed, we still stay in the loop, advancing by just one character.   *
+* In UTF-8 mode, which can be set by (*UTF8) in the pattern, this may be *
+* more than one byte.                                                    *
+*                                                                        *
+* However, there is a complication concerned with newlines. When the     *
+* newline convention is such that CRLF is a valid newline, we must       *
+* advance by two characters rather than one. The newline convention can  *
+* be set in the regex by (*CR), etc.; if not, we must find the default.  *
+*************************************************************************/
+
+if (!find_all)     /* Check for -g */
+  {
+  pcre_free(re);   /* Release the memory used for the compiled pattern */
+  return 0;        /* Finish unless -g was given */
+  }
+
+/* Before running the loop, check for UTF-8 and whether CRLF is a valid newline
+sequence. First, find the options with which the regex was compiled; extract
+the UTF-8 state, and mask off all but the newline options. */
+
+(void)pcre_fullinfo(re, NULL, PCRE_INFO_OPTIONS, &amp;option_bits);
+utf8 = option_bits &amp; PCRE_UTF8;
+option_bits &amp;= PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_CRLF|
+               PCRE_NEWLINE_ANY|PCRE_NEWLINE_ANYCRLF;
+
+/* If no newline options were set, find the default newline convention from the
+build configuration. */
+
+if (option_bits == 0)
+  {
+  int d;
+  (void)pcre_config(PCRE_CONFIG_NEWLINE, &amp;d);
+  /* Note that these values are always the ASCII ones, even in
+  EBCDIC environments. CR = 13, NL = 10. */
+  option_bits = (d == 13)? PCRE_NEWLINE_CR :
+          (d == 10)? PCRE_NEWLINE_LF :
+          (d == (13&lt;&lt;8 | 10))? PCRE_NEWLINE_CRLF :
+          (d == -2)? PCRE_NEWLINE_ANYCRLF :
+          (d == -1)? PCRE_NEWLINE_ANY : 0;
+  }
+
+/* See if CRLF is a valid newline sequence. */
+
+crlf_is_newline =
+     option_bits == PCRE_NEWLINE_ANY ||
+     option_bits == PCRE_NEWLINE_CRLF ||
+     option_bits == PCRE_NEWLINE_ANYCRLF;
+
+/* Loop for second and subsequent matches */
+
+for (;;)
+  {
+  int options = 0;                 /* Normally no options */
+  int start_offset = ovector[1];   /* Start at end of previous match */
+
+  /* If the previous match was for an empty string, we are finished if we are
+  at the end of the subject. Otherwise, arrange to run another match at the
+  same point to see if a non-empty match can be found. */
+
+  if (ovector[0] == ovector[1])
+    {
+    if (ovector[0] == subject_length) break;
+    options = PCRE_NOTEMPTY_ATSTART | PCRE_ANCHORED;
+    }
+
+  /* Run the next matching operation */
+
+  rc = pcre_exec(
+    re,                   /* the compiled pattern */
+    NULL,                 /* no extra data - we didn't study the pattern */
+    subject,              /* the subject string */
+    subject_length,       /* the length of the subject */
+    start_offset,         /* starting offset in the subject */
+    options,              /* options */
+    ovector,              /* output vector for substring information */
+    OVECCOUNT);           /* number of elements in the output vector */
+
+  /* This time, a result of NOMATCH isn't an error. If the value in "options"
+  is zero, it just means we have found all possible matches, so the loop ends.
+  Otherwise, it means we have failed to find a non-empty-string match at a
+  point where there was a previous empty-string match. In this case, we do what
+  Perl does: advance the matching position by one character, and continue. We
+  do this by setting the "end of previous match" offset, because that is picked
+  up at the top of the loop as the point at which to start again.
+
+  There are two complications: (a) When CRLF is a valid newline sequence, and
+  the current position is just before it, advance by an extra byte. (b)
+  Otherwise we must ensure that we skip an entire UTF-8 character if we are in
+  UTF-8 mode. */
+
+  if (rc == PCRE_ERROR_NOMATCH)
+    {
+    if (options == 0) break;                    /* All matches found */
+    ovector[1] = start_offset + 1;              /* Advance one byte */
+    if (crlf_is_newline &amp;&amp;                      /* If CRLF is newline &amp; */
+        start_offset &lt; subject_length - 1 &amp;&amp;    /* we are at CRLF, */
+        subject[start_offset] == '\r' &amp;&amp;
+        subject[start_offset + 1] == '\n')
+      ovector[1] += 1;                          /* Advance by one more. */
+    else if (utf8)                              /* Otherwise, ensure we */
+      {                                         /* advance a whole UTF-8 */
+      while (ovector[1] &lt; subject_length)       /* character. */
+        {
+        if ((subject[ovector[1]] &amp; 0xc0) != 0x80) break;
+        ovector[1] += 1;
+        }
+      }
+    continue;    /* Go round the loop again */
+    }
+
+  /* Other matching errors are not recoverable. */
+
+  if (rc &lt; 0)
+    {
+    printf("Matching error %d\n", rc);
+    pcre_free(re);    /* Release memory used for the compiled pattern */
+    return 1;
+    }
+
+  /* Match succeded */
+
+  printf("\nMatch succeeded again at offset %d\n", ovector[0]);
+
+  /* The match succeeded, but the output vector wasn't big enough. */
+
+  if (rc == 0)
+    {
+    rc = OVECCOUNT/3;
+    printf("ovector only has room for %d captured substrings\n", rc - 1);
+    }
+
+  /* As before, show substrings stored in the output vector by number, and then
+  also any named substrings. */
+
+  for (i = 0; i &lt; rc; i++)
+    {
+    char *substring_start = subject + ovector[2*i];
+    int substring_length = ovector[2*i+1] - ovector[2*i];
+    printf("%2d: %.*s\n", i, substring_length, substring_start);
+    }
+
+  if (namecount &lt;= 0) printf("No named substrings\n"); else
+    {
+    unsigned char *tabptr = name_table;
+    printf("Named substrings\n");
+    for (i = 0; i &lt; namecount; i++)
+      {
+      int n = (tabptr[0] &lt;&lt; 8) | tabptr[1];
+      printf("(%d) %*s: %.*s\n", n, name_entry_size - 3, tabptr + 2,
+        ovector[2*n+1] - ovector[2*n], subject + ovector[2*n]);
+      tabptr += name_entry_size;
+      }
+    }
+  }      /* End of loop to find second and subsequent matches */
+
+printf("\n");
+pcre_free(re);       /* Release memory used for the compiled pattern */
+return 0;
+}
+
+/* End of pcredemo.c */
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcregrep.html b/8.31/doc/html/pcregrep.html
new file mode 100644
index 0000000..f23060c
--- /dev/null
+++ b/8.31/doc/html/pcregrep.html
@@ -0,0 +1,693 @@
+<html>
+<head>
+<title>pcregrep specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcregrep man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">SYNOPSIS</a>
+<li><a name="TOC2" href="#SEC2">DESCRIPTION</a>
+<li><a name="TOC3" href="#SEC3">SUPPORT FOR COMPRESSED FILES</a>
+<li><a name="TOC4" href="#SEC4">BINARY FILES</a>
+<li><a name="TOC5" href="#SEC5">OPTIONS</a>
+<li><a name="TOC6" href="#SEC6">ENVIRONMENT VARIABLES</a>
+<li><a name="TOC7" href="#SEC7">NEWLINES</a>
+<li><a name="TOC8" href="#SEC8">OPTIONS COMPATIBILITY</a>
+<li><a name="TOC9" href="#SEC9">OPTIONS WITH DATA</a>
+<li><a name="TOC10" href="#SEC10">MATCHING ERRORS</a>
+<li><a name="TOC11" href="#SEC11">DIAGNOSTICS</a>
+<li><a name="TOC12" href="#SEC12">SEE ALSO</a>
+<li><a name="TOC13" href="#SEC13">AUTHOR</a>
+<li><a name="TOC14" href="#SEC14">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">SYNOPSIS</a><br>
+<P>
+<b>pcregrep [options] [long options] [pattern] [path1 path2 ...]</b>
+</P>
+<br><a name="SEC2" href="#TOC1">DESCRIPTION</a><br>
+<P>
+<b>pcregrep</b> searches files for character patterns, in the same way as other
+grep commands do, but it uses the PCRE regular expression library to support
+patterns that are compatible with the regular expressions of Perl 5. See
+<a href="pcrepattern.html"><b>pcrepattern</b>(3)</a>
+for a full description of syntax and semantics of the regular expressions
+that PCRE supports.
+</P>
+<P>
+Patterns, whether supplied on the command line or in a separate file, are given
+without delimiters. For example:
+<pre>
+  pcregrep Thursday /etc/motd
+</pre>
+If you attempt to use delimiters (for example, by surrounding a pattern with
+slashes, as is common in Perl scripts), they are interpreted as part of the
+pattern. Quotes can of course be used to delimit patterns on the command line
+because they are interpreted by the shell, and indeed they are required if a
+pattern contains white space or shell metacharacters.
+</P>
+<P>
+The first argument that follows any option settings is treated as the single
+pattern to be matched when neither <b>-e</b> nor <b>-f</b> is present.
+Conversely, when one or both of these options are used to specify patterns, all
+arguments are treated as path names. At least one of <b>-e</b>, <b>-f</b>, or an
+argument pattern must be provided.
+</P>
+<P>
+If no files are specified, <b>pcregrep</b> reads the standard input. The
+standard input can also be referenced by a name consisting of a single hyphen.
+For example:
+<pre>
+  pcregrep some-pattern /file1 - /file3
+</pre>
+By default, each line that matches a pattern is copied to the standard
+output, and if there is more than one file, the file name is output at the
+start of each line, followed by a colon. However, there are options that can
+change how <b>pcregrep</b> behaves. In particular, the <b>-M</b> option makes it
+possible to search for patterns that span line boundaries. What defines a line
+boundary is controlled by the <b>-N</b> (<b>--newline</b>) option.
+</P>
+<P>
+The amount of memory used for buffering files that are being scanned is
+controlled by a parameter that can be set by the <b>--buffer-size</b> option.
+The default value for this parameter is specified when <b>pcregrep</b> is built,
+with the default default being 20K. A block of memory three times this size is
+used (to allow for buffering "before" and "after" lines). An error occurs if a
+line overflows the buffer.
+</P>
+<P>
+Patterns are limited to 8K or BUFSIZ bytes, whichever is the greater. BUFSIZ is
+defined in <b>&#60;stdio.h&#62;</b>. When there is more than one pattern (specified by
+the use of <b>-e</b> and/or <b>-f</b>), each pattern is applied to each line in
+the order in which they are defined, except that all the <b>-e</b> patterns are
+tried before the <b>-f</b> patterns.
+</P>
+<P>
+By default, as soon as one pattern matches (or fails to match when <b>-v</b> is
+used), no further patterns are considered. However, if <b>--colour</b> (or
+<b>--color</b>) is used to colour the matching substrings, or if
+<b>--only-matching</b>, <b>--file-offsets</b>, or <b>--line-offsets</b> is used to
+output only the part of the line that matched (either shown literally, or as an
+offset), scanning resumes immediately following the match, so that further
+matches on the same line can be found. If there are multiple patterns, they are
+all tried on the remainder of the line, but patterns that follow the one that
+matched are not tried on the earlier part of the line.
+</P>
+<P>
+This is the same behaviour as GNU grep, but it does mean that the order in
+which multiple patterns are specified can affect the output when one of the
+above options is used.
+</P>
+<P>
+Patterns that can match an empty string are accepted, but empty string
+matches are never recognized. An example is the pattern "(super)?(man)?", in
+which all components are optional. This pattern finds all occurrences of both
+"super" and "man"; the output differs from matching with "super|man" when only
+the matching substrings are being shown.
+</P>
+<P>
+If the <b>LC_ALL</b> or <b>LC_CTYPE</b> environment variable is set,
+<b>pcregrep</b> uses the value to set a locale when calling the PCRE library.
+The <b>--locale</b> option can be used to override this.
+</P>
+<br><a name="SEC3" href="#TOC1">SUPPORT FOR COMPRESSED FILES</a><br>
+<P>
+It is possible to compile <b>pcregrep</b> so that it uses <b>libz</b> or
+<b>libbz2</b> to read files whose names end in <b>.gz</b> or <b>.bz2</b>,
+respectively. You can find out whether your binary has support for one or both
+of these file types by running it with the <b>--help</b> option. If the
+appropriate support is not present, files are treated as plain text. The
+standard input is always so treated.
+</P>
+<br><a name="SEC4" href="#TOC1">BINARY FILES</a><br>
+<P>
+By default, a file that contains a binary zero byte within the first 1024 bytes
+is identified as a binary file, and is processed specially. (GNU grep also
+identifies binary files in this manner.) See the <b>--binary-files</b> option
+for a means of changing the way binary files are handled.
+</P>
+<br><a name="SEC5" href="#TOC1">OPTIONS</a><br>
+<P>
+The order in which some of the options appear can affect the output. For
+example, both the <b>-h</b> and <b>-l</b> options affect the printing of file
+names. Whichever comes later in the command line will be the one that takes
+effect. Numerical values for options may be followed by K or M, to signify
+multiplication by 1024 or 1024*1024 respectively.
+</P>
+<P>
+<b>--</b>
+This terminates the list of options. It is useful if the next item on the
+command line starts with a hyphen but is not an option. This allows for the
+processing of patterns and filenames that start with hyphens.
+</P>
+<P>
+<b>-A</b> <i>number</i>, <b>--after-context=</b><i>number</i>
+Output <i>number</i> lines of context after each matching line. If filenames
+and/or line numbers are being output, a hyphen separator is used instead of a
+colon for the context lines. A line containing "--" is output between each
+group of lines, unless they are in fact contiguous in the input file. The value
+of <i>number</i> is expected to be relatively small. However, <b>pcregrep</b>
+guarantees to have up to 8K of following text available for context output.
+</P>
+<P>
+<b>-a</b>, <b>--text</b>
+Treat binary files as text. This is equivalent to
+<b>--binary-files</b>=<i>text</i>.
+</P>
+<P>
+<b>-B</b> <i>number</i>, <b>--before-context=</b><i>number</i>
+Output <i>number</i> lines of context before each matching line. If filenames
+and/or line numbers are being output, a hyphen separator is used instead of a
+colon for the context lines. A line containing "--" is output between each
+group of lines, unless they are in fact contiguous in the input file. The value
+of <i>number</i> is expected to be relatively small. However, <b>pcregrep</b>
+guarantees to have up to 8K of preceding text available for context output.
+</P>
+<P>
+<b>--binary-files=</b><i>word</i>
+Specify how binary files are to be processed. If the word is "binary" (the
+default), pattern matching is performed on binary files, but the only output is
+"Binary file &#60;name&#62; matches" when a match succeeds. If the word is "text",
+which is equivalent to the <b>-a</b> or <b>--text</b> option, binary files are
+processed in the same way as any other file. In this case, when a match
+succeeds, the output may be binary garbage, which can have nasty effects if
+sent to a terminal. If the word is "without-match", which is equivalent to the
+<b>-I</b> option, binary files are not processed at all; they are assumed not to
+be of interest.
+</P>
+<P>
+<b>--buffer-size=</b><i>number</i>
+Set the parameter that controls how much memory is used for buffering files
+that are being scanned.
+</P>
+<P>
+<b>-C</b> <i>number</i>, <b>--context=</b><i>number</i>
+Output <i>number</i> lines of context both before and after each matching line.
+This is equivalent to setting both <b>-A</b> and <b>-B</b> to the same value.
+</P>
+<P>
+<b>-c</b>, <b>--count</b>
+Do not output individual lines from the files that are being scanned; instead
+output the number of lines that would otherwise have been shown. If no lines
+are selected, the number zero is output. If several files are are being
+scanned, a count is output for each of them. However, if the
+<b>--files-with-matches</b> option is also used, only those files whose counts
+are greater than zero are listed. When <b>-c</b> is used, the <b>-A</b>,
+<b>-B</b>, and <b>-C</b> options are ignored.
+</P>
+<P>
+<b>--colour</b>, <b>--color</b>
+If this option is given without any data, it is equivalent to "--colour=auto".
+If data is required, it must be given in the same shell item, separated by an
+equals sign.
+</P>
+<P>
+<b>--colour=</b><i>value</i>, <b>--color=</b><i>value</i>
+This option specifies under what circumstances the parts of a line that matched
+a pattern should be coloured in the output. By default, the output is not
+coloured. The value (which is optional, see above) may be "never", "always", or
+"auto". In the latter case, colouring happens only if the standard output is
+connected to a terminal. More resources are used when colouring is enabled,
+because <b>pcregrep</b> has to search for all possible matches in a line, not
+just one, in order to colour them all.
+<br>
+<br>
+The colour that is used can be specified by setting the environment variable
+PCREGREP_COLOUR or PCREGREP_COLOR. The value of this variable should be a
+string of two numbers, separated by a semicolon. They are copied directly into
+the control string for setting colour on a terminal, so it is your
+responsibility to ensure that they make sense. If neither of the environment
+variables is set, the default is "1;31", which gives red.
+</P>
+<P>
+<b>-D</b> <i>action</i>, <b>--devices=</b><i>action</i>
+If an input path is not a regular file or a directory, "action" specifies how
+it is to be processed. Valid values are "read" (the default) or "skip"
+(silently skip the path).
+</P>
+<P>
+<b>-d</b> <i>action</i>, <b>--directories=</b><i>action</i>
+If an input path is a directory, "action" specifies how it is to be processed.
+Valid values are "read" (the default), "recurse" (equivalent to the <b>-r</b>
+option), or "skip" (silently skip the path). In the default case, directories
+are read as if they were ordinary files. In some operating systems the effect
+of reading a directory like this is an immediate end-of-file.
+</P>
+<P>
+<b>-e</b> <i>pattern</i>, <b>--regex=</b><i>pattern</i>, <b>--regexp=</b><i>pattern</i>
+Specify a pattern to be matched. This option can be used multiple times in
+order to specify several patterns. It can also be used as a way of specifying a
+single pattern that starts with a hyphen. When <b>-e</b> is used, no argument
+pattern is taken from the command line; all arguments are treated as file
+names. There is an overall maximum of 100 patterns. They are applied to each
+line in the order in which they are defined until one matches (or fails to
+match if <b>-v</b> is used). If <b>-f</b> is used with <b>-e</b>, the command line
+patterns are matched first, followed by the patterns from the file, independent
+of the order in which these options are specified. Note that multiple use of
+<b>-e</b> is not the same as a single pattern with alternatives. For example,
+X|Y finds the first character in a line that is X or Y, whereas if the two
+patterns are given separately, <b>pcregrep</b> finds X if it is present, even if
+it follows Y in the line. It finds Y only if there is no X in the line. This
+really matters only if you are using <b>-o</b> to show the part(s) of the line
+that matched.
+</P>
+<P>
+<b>--exclude</b>=<i>pattern</i>
+When <b>pcregrep</b> is searching the files in a directory as a consequence of
+the <b>-r</b> (recursive search) option, any regular files whose names match the
+pattern are excluded. Subdirectories are not excluded by this option; they are
+searched recursively, subject to the <b>--exclude-dir</b> and
+<b>--include_dir</b> options. The pattern is a PCRE regular expression, and is
+matched against the final component of the file name (not the entire path). If
+a file name matches both <b>--include</b> and <b>--exclude</b>, it is excluded.
+There is no short form for this option.
+</P>
+<P>
+<b>--exclude-dir</b>=<i>pattern</i>
+When <b>pcregrep</b> is searching the contents of a directory as a consequence
+of the <b>-r</b> (recursive search) option, any subdirectories whose names match
+the pattern are excluded. (Note that the \fP--exclude\fP option does not affect
+subdirectories.) The pattern is a PCRE regular expression, and is matched
+against the final component of the name (not the entire path). If a
+subdirectory name matches both <b>--include-dir</b> and <b>--exclude-dir</b>, it
+is excluded. There is no short form for this option.
+</P>
+<P>
+<b>-F</b>, <b>--fixed-strings</b>
+Interpret each pattern as a list of fixed strings, separated by newlines,
+instead of as a regular expression. The <b>-w</b> (match as a word) and <b>-x</b>
+(match whole line) options can be used with <b>-F</b>. They apply to each of the
+fixed strings. A line is selected if any of the fixed strings are found in it
+(subject to <b>-w</b> or <b>-x</b>, if present).
+</P>
+<P>
+<b>-f</b> <i>filename</i>, <b>--file=</b><i>filename</i>
+Read a number of patterns from the file, one per line, and match them against
+each line of input. A data line is output if any of the patterns match it. The
+filename can be given as "-" to refer to the standard input. When <b>-f</b> is
+used, patterns specified on the command line using <b>-e</b> may also be
+present; they are tested before the file's patterns. However, no other pattern
+is taken from the command line; all arguments are treated as the names of paths
+to be searched. There is an overall maximum of 100 patterns. Trailing white
+space is removed from each line, and blank lines are ignored. An empty file
+contains no patterns and therefore matches nothing. See also the comments about
+multiple patterns versus a single pattern with alternatives in the description
+of <b>-e</b> above.
+</P>
+<P>
+<b>--file-list</b>=<i>filename</i>
+Read a list of files to be searched from the given file, one per line. Trailing
+white space is removed from each line, and blank lines are ignored. These files
+are searched before any others that may be listed on the command line. The
+filename can be given as "-" to refer to the standard input. If <b>--file</b>
+and <b>--file-list</b> are both specified as "-", patterns are read first. This
+is useful only when the standard input is a terminal, from which further lines
+(the list of files) can be read after an end-of-file indication.
+</P>
+<P>
+<b>--file-offsets</b>
+Instead of showing lines or parts of lines that match, show each match as an
+offset from the start of the file and a length, separated by a comma. In this
+mode, no context is shown. That is, the <b>-A</b>, <b>-B</b>, and <b>-C</b>
+options are ignored. If there is more than one match in a line, each of them is
+shown separately. This option is mutually exclusive with <b>--line-offsets</b>
+and <b>--only-matching</b>.
+</P>
+<P>
+<b>-H</b>, <b>--with-filename</b>
+Force the inclusion of the filename at the start of output lines when searching
+a single file. By default, the filename is not shown in this case. For matching
+lines, the filename is followed by a colon; for context lines, a hyphen
+separator is used. If a line number is also being output, it follows the file
+name.
+</P>
+<P>
+<b>-h</b>, <b>--no-filename</b>
+Suppress the output filenames when searching multiple files. By default,
+filenames are shown when multiple files are searched. For matching lines, the
+filename is followed by a colon; for context lines, a hyphen separator is used.
+If a line number is also being output, it follows the file name.
+</P>
+<P>
+<b>--help</b>
+Output a help message, giving brief details of the command options and file
+type support, and then exit.
+</P>
+<P>
+<b>-I</b>
+Treat binary files as never matching. This is equivalent to
+<b>--binary-files</b>=<i>without-match</i>.
+</P>
+<P>
+<b>-i</b>, <b>--ignore-case</b>
+Ignore upper/lower case distinctions during comparisons.
+</P>
+<P>
+<b>--include</b>=<i>pattern</i>
+When <b>pcregrep</b> is searching the files in a directory as a consequence of
+the <b>-r</b> (recursive search) option, only those regular files whose names
+match the pattern are included. Subdirectories are always included and searched
+recursively, subject to the \fP--include-dir\fP and <b>--exclude-dir</b>
+options. The pattern is a PCRE regular expression, and is matched against the
+final component of the file name (not the entire path). If a file name matches
+both <b>--include</b> and <b>--exclude</b>, it is excluded. There is no short
+form for this option.
+</P>
+<P>
+<b>--include-dir</b>=<i>pattern</i>
+When <b>pcregrep</b> is searching the contents of a directory as a consequence
+of the <b>-r</b> (recursive search) option, only those subdirectories whose
+names match the pattern are included. (Note that the <b>--include</b> option
+does not affect subdirectories.) The pattern is a PCRE regular expression, and
+is matched against the final component of the name (not the entire path). If a
+subdirectory name matches both <b>--include-dir</b> and <b>--exclude-dir</b>, it
+is excluded. There is no short form for this option.
+</P>
+<P>
+<b>-L</b>, <b>--files-without-match</b>
+Instead of outputting lines from the files, just output the names of the files
+that do not contain any lines that would have been output. Each file name is
+output once, on a separate line.
+</P>
+<P>
+<b>-l</b>, <b>--files-with-matches</b>
+Instead of outputting lines from the files, just output the names of the files
+containing lines that would have been output. Each file name is output
+once, on a separate line. Searching normally stops as soon as a matching line
+is found in a file. However, if the <b>-c</b> (count) option is also used,
+matching continues in order to obtain the correct count, and those files that
+have at least one match are listed along with their counts. Using this option
+with <b>-c</b> is a way of suppressing the listing of files with no matches.
+</P>
+<P>
+<b>--label</b>=<i>name</i>
+This option supplies a name to be used for the standard input when file names
+are being output. If not supplied, "(standard input)" is used. There is no
+short form for this option.
+</P>
+<P>
+<b>--line-buffered</b>
+When this option is given, input is read and processed line by line, and the
+output is flushed after each write. By default, input is read in large chunks,
+unless <b>pcregrep</b> can determine that it is reading from a terminal (which
+is currently possible only in Unix environments). Output to terminal is
+normally automatically flushed by the operating system. This option can be
+useful when the input or output is attached to a pipe and you do not want
+<b>pcregrep</b> to buffer up large amounts of data. However, its use will affect
+performance, and the <b>-M</b> (multiline) option ceases to work.
+</P>
+<P>
+<b>--line-offsets</b>
+Instead of showing lines or parts of lines that match, show each match as a
+line number, the offset from the start of the line, and a length. The line
+number is terminated by a colon (as usual; see the <b>-n</b> option), and the
+offset and length are separated by a comma. In this mode, no context is shown.
+That is, the <b>-A</b>, <b>-B</b>, and <b>-C</b> options are ignored. If there is
+more than one match in a line, each of them is shown separately. This option is
+mutually exclusive with <b>--file-offsets</b> and <b>--only-matching</b>.
+</P>
+<P>
+<b>--locale</b>=<i>locale-name</i>
+This option specifies a locale to be used for pattern matching. It overrides
+the value in the <b>LC_ALL</b> or <b>LC_CTYPE</b> environment variables. If no
+locale is specified, the PCRE library's default (usually the "C" locale) is
+used. There is no short form for this option.
+</P>
+<P>
+<b>--match-limit</b>=<i>number</i>
+Processing some regular expression patterns can require a very large amount of
+memory, leading in some cases to a program crash if not enough is available.
+Other patterns may take a very long time to search for all possible matching
+strings. The <b>pcre_exec()</b> function that is called by <b>pcregrep</b> to do
+the matching has two parameters that can limit the resources that it uses.
+<br>
+<br>
+The <b>--match-limit</b> option provides a means of limiting resource usage
+when processing patterns that are not going to match, but which have a very
+large number of possibilities in their search trees. The classic example is a
+pattern that uses nested unlimited repeats. Internally, PCRE uses a function
+called <b>match()</b> which it calls repeatedly (sometimes recursively). The
+limit set by <b>--match-limit</b> is imposed on the number of times this
+function is called during a match, which has the effect of limiting the amount
+of backtracking that can take place.
+<br>
+<br>
+The <b>--recursion-limit</b> option is similar to <b>--match-limit</b>, but
+instead of limiting the total number of times that <b>match()</b> is called, it
+limits the depth of recursive calls, which in turn limits the amount of memory
+that can be used. The recursion depth is a smaller number than the total number
+of calls, because not all calls to <b>match()</b> are recursive. This limit is
+of use only if it is set smaller than <b>--match-limit</b>.
+<br>
+<br>
+There are no short forms for these options. The default settings are specified
+when the PCRE library is compiled, with the default default being 10 million.
+</P>
+<P>
+<b>-M</b>, <b>--multiline</b>
+Allow patterns to match more than one line. When this option is given, patterns
+may usefully contain literal newline characters and internal occurrences of ^
+and $ characters. The output for a successful match may consist of more than
+one line, the last of which is the one in which the match ended. If the matched
+string ends with a newline sequence the output ends at the end of that line.
+<br>
+<br>
+When this option is set, the PCRE library is called in "multiline" mode.
+There is a limit to the number of lines that can be matched, imposed by the way
+that <b>pcregrep</b> buffers the input file as it scans it. However,
+<b>pcregrep</b> ensures that at least 8K characters or the rest of the document
+(whichever is the shorter) are available for forward matching, and similarly
+the previous 8K characters (or all the previous characters, if fewer than 8K)
+are guaranteed to be available for lookbehind assertions. This option does not
+work when input is read line by line (see \fP--line-buffered\fP.)
+</P>
+<P>
+<b>-N</b> <i>newline-type</i>, <b>--newline</b>=<i>newline-type</i>
+The PCRE library supports five different conventions for indicating
+the ends of lines. They are the single-character sequences CR (carriage return)
+and LF (linefeed), the two-character sequence CRLF, an "anycrlf" convention,
+which recognizes any of the preceding three types, and an "any" convention, in
+which any Unicode line ending sequence is assumed to end a line. The Unicode
+sequences are the three just mentioned, plus VT (vertical tab, U+000B), FF
+(form feed, U+000C), NEL (next line, U+0085), LS (line separator, U+2028), and
+PS (paragraph separator, U+2029).
+<br>
+<br>
+When the PCRE library is built, a default line-ending sequence is specified.
+This is normally the standard sequence for the operating system. Unless
+otherwise specified by this option, <b>pcregrep</b> uses the library's default.
+The possible values for this option are CR, LF, CRLF, ANYCRLF, or ANY. This
+makes it possible to use <b>pcregrep</b> on files that have come from other
+environments without having to modify their line endings. If the data that is
+being scanned does not agree with the convention set by this option,
+<b>pcregrep</b> may behave in strange ways.
+</P>
+<P>
+<b>-n</b>, <b>--line-number</b>
+Precede each output line by its line number in the file, followed by a colon
+for matching lines or a hyphen for context lines. If the filename is also being
+output, it precedes the line number. This option is forced if
+<b>--line-offsets</b> is used.
+</P>
+<P>
+<b>--no-jit</b>
+If the PCRE library is built with support for just-in-time compiling (which
+speeds up matching), <b>pcregrep</b> automatically makes use of this, unless it
+was explicitly disabled at build time. This option can be used to disable the
+use of JIT at run time. It is provided for testing and working round problems.
+It should never be needed in normal use.
+</P>
+<P>
+<b>-o</b>, <b>--only-matching</b>
+Show only the part of the line that matched a pattern instead of the whole
+line. In this mode, no context is shown. That is, the <b>-A</b>, <b>-B</b>, and
+<b>-C</b> options are ignored. If there is more than one match in a line, each
+of them is shown separately. If <b>-o</b> is combined with <b>-v</b> (invert the
+sense of the match to find non-matching lines), no output is generated, but the
+return code is set appropriately. If the matched portion of the line is empty,
+nothing is output unless the file name or line number are being printed, in
+which case they are shown on an otherwise empty line. This option is mutually
+exclusive with <b>--file-offsets</b> and <b>--line-offsets</b>.
+</P>
+<P>
+<b>-o</b><i>number</i>, <b>--only-matching</b>=<i>number</i>
+Show only the part of the line that matched the capturing parentheses of the
+given number. Up to 32 capturing parentheses are supported. Because these
+options can be given without an argument (see above), if an argument is
+present, it must be given in the same shell item, for example, -o3 or
+--only-matching=2. The comments given for the non-argument case above also
+apply to this case. If the specified capturing parentheses do not exist in the
+pattern, or were not set in the match, nothing is output unless the file name
+or line number are being printed.
+</P>
+<P>
+<b>-q</b>, <b>--quiet</b>
+Work quietly, that is, display nothing except error messages. The exit
+status indicates whether or not any matches were found.
+</P>
+<P>
+<b>-r</b>, <b>--recursive</b>
+If any given path is a directory, recursively scan the files it contains,
+taking note of any <b>--include</b> and <b>--exclude</b> settings. By default, a
+directory is read as a normal file; in some operating systems this gives an
+immediate end-of-file. This option is a shorthand for setting the <b>-d</b>
+option to "recurse".
+</P>
+<P>
+<b>--recursion-limit</b>=<i>number</i>
+See <b>--match-limit</b> above.
+</P>
+<P>
+<b>-s</b>, <b>--no-messages</b>
+Suppress error messages about non-existent or unreadable files. Such files are
+quietly skipped. However, the return code is still 2, even if matches were
+found in other files.
+</P>
+<P>
+<b>-u</b>, <b>--utf-8</b>
+Operate in UTF-8 mode. This option is available only if PCRE has been compiled
+with UTF-8 support. Both patterns and subject lines must be valid strings of
+UTF-8 characters.
+</P>
+<P>
+<b>-V</b>, <b>--version</b>
+Write the version numbers of <b>pcregrep</b> and the PCRE library that is being
+used to the standard error stream.
+</P>
+<P>
+<b>-v</b>, <b>--invert-match</b>
+Invert the sense of the match, so that lines which do <i>not</i> match any of
+the patterns are the ones that are found.
+</P>
+<P>
+<b>-w</b>, <b>--word-regex</b>, <b>--word-regexp</b>
+Force the patterns to match only whole words. This is equivalent to having \b
+at the start and end of the pattern.
+</P>
+<P>
+<b>-x</b>, <b>--line-regex</b>, <b>--line-regexp</b>
+Force the patterns to be anchored (each must start matching at the beginning of
+a line) and in addition, require them to match entire lines. This is
+equivalent to having ^ and $ characters at the start and end of each
+alternative branch in every pattern.
+</P>
+<br><a name="SEC6" href="#TOC1">ENVIRONMENT VARIABLES</a><br>
+<P>
+The environment variables <b>LC_ALL</b> and <b>LC_CTYPE</b> are examined, in that
+order, for a locale. The first one that is set is used. This can be overridden
+by the <b>--locale</b> option. If no locale is set, the PCRE library's default
+(usually the "C" locale) is used.
+</P>
+<br><a name="SEC7" href="#TOC1">NEWLINES</a><br>
+<P>
+The <b>-N</b> (<b>--newline</b>) option allows <b>pcregrep</b> to scan files with
+different newline conventions from the default. However, the setting of this
+option does not affect the way in which <b>pcregrep</b> writes information to
+the standard error and output streams. It uses the string "\n" in C
+<b>printf()</b> calls to indicate newlines, relying on the C I/O library to
+convert this to an appropriate sequence if the output is sent to a file.
+</P>
+<br><a name="SEC8" href="#TOC1">OPTIONS COMPATIBILITY</a><br>
+<P>
+Many of the short and long forms of <b>pcregrep</b>'s options are the same
+as in the GNU <b>grep</b> program. Any long option of the form
+<b>--xxx-regexp</b> (GNU terminology) is also available as <b>--xxx-regex</b>
+(PCRE terminology). However, the <b>--file-list</b>, <b>--file-offsets</b>,
+<b>--include-dir</b>, <b>--line-offsets</b>, <b>--locale</b>, <b>--match-limit</b>,
+<b>-M</b>, <b>--multiline</b>, <b>-N</b>, <b>--newline</b>,
+<b>--recursion-limit</b>, <b>-u</b>, and <b>--utf-8</b> options are specific to
+<b>pcregrep</b>, as is the use of the <b>--only-matching</b> option with a
+capturing parentheses number.
+</P>
+<P>
+Although most of the common options work the same way, a few are different in
+<b>pcregrep</b>. For example, the <b>--include</b> option's argument is a glob
+for GNU <b>grep</b>, but a regular expression for <b>pcregrep</b>. If both the
+<b>-c</b> and <b>-l</b> options are given, GNU grep lists only file names,
+without counts, but <b>pcregrep</b> gives the counts.
+</P>
+<br><a name="SEC9" href="#TOC1">OPTIONS WITH DATA</a><br>
+<P>
+There are four different ways in which an option with data can be specified.
+If a short form option is used, the data may follow immediately, or (with one
+exception) in the next command line item. For example:
+<pre>
+  -f/some/file
+  -f /some/file
+</pre>
+The exception is the <b>-o</b> option, which may appear with or without data.
+Because of this, if data is present, it must follow immediately in the same
+item, for example -o3.
+</P>
+<P>
+If a long form option is used, the data may appear in the same command line
+item, separated by an equals character, or (with two exceptions) it may appear
+in the next command line item. For example:
+<pre>
+  --file=/some/file
+  --file /some/file
+</pre>
+Note, however, that if you want to supply a file name beginning with ~ as data
+in a shell command, and have the shell expand ~ to a home directory, you must
+separate the file name from the option, because the shell does not treat ~
+specially unless it is at the start of an item.
+</P>
+<P>
+The exceptions to the above are the <b>--colour</b> (or <b>--color</b>) and
+<b>--only-matching</b> options, for which the data is optional. If one of these
+options does have data, it must be given in the first form, using an equals
+character. Otherwise <b>pcregrep</b> will assume that it has no data.
+</P>
+<br><a name="SEC10" href="#TOC1">MATCHING ERRORS</a><br>
+<P>
+It is possible to supply a regular expression that takes a very long time to
+fail to match certain lines. Such patterns normally involve nested indefinite
+repeats, for example: (a+)*\d when matched against a line of a's with no final
+digit. The PCRE matching function has a resource limit that causes it to abort
+in these circumstances. If this happens, <b>pcregrep</b> outputs an error
+message and the line that caused the problem to the standard error stream. If
+there are more than 20 such errors, <b>pcregrep</b> gives up.
+</P>
+<P>
+The <b>--match-limit</b> option of <b>pcregrep</b> can be used to set the overall
+resource limit; there is a second option called <b>--recursion-limit</b> that
+sets a limit on the amount of memory (usually stack) that is used (see the
+discussion of these options above).
+</P>
+<br><a name="SEC11" href="#TOC1">DIAGNOSTICS</a><br>
+<P>
+Exit status is 0 if any matches were found, 1 if no matches were found, and 2
+for syntax errors, overlong lines, non-existent or inaccessible files (even if
+matches were found in other files) or too many matching errors. Using the
+<b>-s</b> option to suppress error messages about inaccessible files does not
+affect the return code.
+</P>
+<br><a name="SEC12" href="#TOC1">SEE ALSO</a><br>
+<P>
+<b>pcrepattern</b>(3), <b>pcretest</b>(1).
+</P>
+<br><a name="SEC13" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC14" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 04 March 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrejit.html b/8.31/doc/html/pcrejit.html
new file mode 100644
index 0000000..ea1c6cc
--- /dev/null
+++ b/8.31/doc/html/pcrejit.html
@@ -0,0 +1,422 @@
+<html>
+<head>
+<title>pcrejit specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrejit man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PCRE JUST-IN-TIME COMPILER SUPPORT</a>
+<li><a name="TOC2" href="#SEC2">8-BIT and 16-BIT SUPPORT</a>
+<li><a name="TOC3" href="#SEC3">AVAILABILITY OF JIT SUPPORT</a>
+<li><a name="TOC4" href="#SEC4">SIMPLE USE OF JIT</a>
+<li><a name="TOC5" href="#SEC5">UNSUPPORTED OPTIONS AND PATTERN ITEMS</a>
+<li><a name="TOC6" href="#SEC6">RETURN VALUES FROM JIT EXECUTION</a>
+<li><a name="TOC7" href="#SEC7">SAVING AND RESTORING COMPILED PATTERNS</a>
+<li><a name="TOC8" href="#SEC8">CONTROLLING THE JIT STACK</a>
+<li><a name="TOC9" href="#SEC9">JIT STACK FAQ</a>
+<li><a name="TOC10" href="#SEC10">EXAMPLE CODE</a>
+<li><a name="TOC11" href="#SEC11">SEE ALSO</a>
+<li><a name="TOC12" href="#SEC12">AUTHOR</a>
+<li><a name="TOC13" href="#SEC13">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">PCRE JUST-IN-TIME COMPILER SUPPORT</a><br>
+<P>
+Just-in-time compiling is a heavyweight optimization that can greatly speed up
+pattern matching. However, it comes at the cost of extra processing before the
+match is performed. Therefore, it is of most benefit when the same pattern is
+going to be matched many times. This does not necessarily mean many calls of a
+matching function; if the pattern is not anchored, matching attempts may take
+place many times at various positions in the subject, even for a single call.
+Therefore, if the subject string is very long, it may still pay to use JIT for
+one-off matches.
+</P>
+<P>
+JIT support applies only to the traditional Perl-compatible matching function.
+It does not apply when the DFA matching function is being used. The code for
+this support was written by Zoltan Herczeg.
+</P>
+<br><a name="SEC2" href="#TOC1">8-BIT and 16-BIT SUPPORT</a><br>
+<P>
+JIT support is available for both the 8-bit and 16-bit PCRE libraries. To keep
+this documentation simple, only the 8-bit interface is described in what
+follows. If you are using the 16-bit library, substitute the 16-bit functions
+and 16-bit structures (for example, <i>pcre16_jit_stack</i> instead of
+<i>pcre_jit_stack</i>).
+</P>
+<br><a name="SEC3" href="#TOC1">AVAILABILITY OF JIT SUPPORT</a><br>
+<P>
+JIT support is an optional feature of PCRE. The "configure" option --enable-jit
+(or equivalent CMake option) must be set when PCRE is built if you want to use
+JIT. The support is limited to the following hardware platforms:
+<pre>
+  ARM v5, v7, and Thumb2
+  Intel x86 32-bit and 64-bit
+  MIPS 32-bit
+  Power PC 32-bit and 64-bit
+</pre>
+If --enable-jit is set on an unsupported platform, compilation fails.
+</P>
+<P>
+A program that is linked with PCRE 8.20 or later can tell if JIT support is
+available by calling <b>pcre_config()</b> with the PCRE_CONFIG_JIT option. The
+result is 1 when JIT is available, and 0 otherwise. However, a simple program
+does not need to check this in order to use JIT. The API is implemented in a
+way that falls back to the interpretive code if JIT is not available.
+</P>
+<P>
+If your program may sometimes be linked with versions of PCRE that are older
+than 8.20, but you want to use JIT when it is available, you can test
+the values of PCRE_MAJOR and PCRE_MINOR, or the existence of a JIT macro such
+as PCRE_CONFIG_JIT, for compile-time control of your code.
+</P>
+<br><a name="SEC4" href="#TOC1">SIMPLE USE OF JIT</a><br>
+<P>
+You have to do two things to make use of the JIT support in the simplest way:
+<pre>
+  (1) Call <b>pcre_study()</b> with the PCRE_STUDY_JIT_COMPILE option for
+      each compiled pattern, and pass the resulting <b>pcre_extra</b> block to
+      <b>pcre_exec()</b>.
+
+  (2) Use <b>pcre_free_study()</b> to free the <b>pcre_extra</b> block when it is
+      no longer needed, instead of just freeing it yourself. This
+      ensures that any JIT data is also freed.
+</pre>
+For a program that may be linked with pre-8.20 versions of PCRE, you can insert
+<pre>
+  #ifndef PCRE_STUDY_JIT_COMPILE
+  #define PCRE_STUDY_JIT_COMPILE 0
+  #endif
+</pre>
+so that no option is passed to <b>pcre_study()</b>, and then use something like
+this to free the study data:
+<pre>
+  #ifdef PCRE_CONFIG_JIT
+      pcre_free_study(study_ptr);
+  #else
+      pcre_free(study_ptr);
+  #endif
+</pre>
+PCRE_STUDY_JIT_COMPILE requests the JIT compiler to generate code for complete
+matches. If you want to run partial matches using the PCRE_PARTIAL_HARD or
+PCRE_PARTIAL_SOFT options of <b>pcre_exec()</b>, you should set one or both of
+the following options in addition to, or instead of, PCRE_STUDY_JIT_COMPILE
+when you call <b>pcre_study()</b>:
+<pre>
+  PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+  PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+</pre>
+The JIT compiler generates different optimized code for each of the three
+modes (normal, soft partial, hard partial). When <b>pcre_exec()</b> is called,
+the appropriate code is run if it is available. Otherwise, the pattern is
+matched using interpretive code.
+</P>
+<P>
+In some circumstances you may need to call additional functions. These are
+described in the section entitled
+<a href="#stackcontrol">"Controlling the JIT stack"</a>
+below.
+</P>
+<P>
+If JIT support is not available, PCRE_STUDY_JIT_COMPILE etc. are ignored, and
+no JIT data is created. Otherwise, the compiled pattern is passed to the JIT
+compiler, which turns it into machine code that executes much faster than the
+normal interpretive code. When <b>pcre_exec()</b> is passed a <b>pcre_extra</b>
+block containing a pointer to JIT code of the appropriate mode (normal or
+hard/soft partial), it obeys that code instead of running the interpreter. The
+result is identical, but the compiled JIT code runs much faster.
+</P>
+<P>
+There are some <b>pcre_exec()</b> options that are not supported for JIT
+execution. There are also some pattern items that JIT cannot handle. Details
+are given below. In both cases, execution automatically falls back to the
+interpretive code. If you want to know whether JIT was actually used for a
+particular match, you should arrange for a JIT callback function to be set up
+as described in the section entitled
+<a href="#stackcontrol">"Controlling the JIT stack"</a>
+below, even if you do not need to supply a non-default JIT stack. Such a
+callback function is called whenever JIT code is about to be obeyed. If the
+execution options are not right for JIT execution, the callback function is not
+obeyed.
+</P>
+<P>
+If the JIT compiler finds an unsupported item, no JIT data is generated. You
+can find out if JIT execution is available after studying a pattern by calling
+<b>pcre_fullinfo()</b> with the PCRE_INFO_JIT option. A result of 1 means that
+JIT compilation was successful. A result of 0 means that JIT support is not
+available, or the pattern was not studied with PCRE_STUDY_JIT_COMPILE etc., or
+the JIT compiler was not able to handle the pattern.
+</P>
+<P>
+Once a pattern has been studied, with or without JIT, it can be used as many
+times as you like for matching different subject strings.
+</P>
+<br><a name="SEC5" href="#TOC1">UNSUPPORTED OPTIONS AND PATTERN ITEMS</a><br>
+<P>
+The only <b>pcre_exec()</b> options that are supported for JIT execution are
+PCRE_NO_UTF8_CHECK, PCRE_NO_UTF16_CHECK, PCRE_NOTBOL, PCRE_NOTEOL,
+PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART, PCRE_PARTIAL_HARD, and PCRE_PARTIAL_SOFT.
+</P>
+<P>
+The unsupported pattern items are:
+<pre>
+  \C             match a single byte; not supported in UTF-8 mode
+  (?Cn)          callouts
+  (*PRUNE)       )
+  (*SKIP)        ) backtracking control verbs
+  (*THEN)        )
+</pre>
+Support for some of these may be added in future.
+</P>
+<br><a name="SEC6" href="#TOC1">RETURN VALUES FROM JIT EXECUTION</a><br>
+<P>
+When a pattern is matched using JIT execution, the return values are the same
+as those given by the interpretive <b>pcre_exec()</b> code, with the addition of
+one new error code: PCRE_ERROR_JIT_STACKLIMIT. This means that the memory used
+for the JIT stack was insufficient. See
+<a href="#stackcontrol">"Controlling the JIT stack"</a>
+below for a discussion of JIT stack usage. For compatibility with the
+interpretive <b>pcre_exec()</b> code, no more than two-thirds of the
+<i>ovector</i> argument is used for passing back captured substrings.
+</P>
+<P>
+The error code PCRE_ERROR_MATCHLIMIT is returned by the JIT code if searching a
+very large pattern tree goes on for too long, as it is in the same circumstance
+when JIT is not used, but the details of exactly what is counted are not the
+same. The PCRE_ERROR_RECURSIONLIMIT error code is never returned by JIT
+execution.
+</P>
+<br><a name="SEC7" href="#TOC1">SAVING AND RESTORING COMPILED PATTERNS</a><br>
+<P>
+The code that is generated by the JIT compiler is architecture-specific, and is
+also position dependent. For those reasons it cannot be saved (in a file or
+database) and restored later like the bytecode and other data of a compiled
+pattern. Saving and restoring compiled patterns is not something many people
+do. More detail about this facility is given in the
+<a href="pcreprecompile.html"><b>pcreprecompile</b></a>
+documentation. It should be possible to run <b>pcre_study()</b> on a saved and
+restored pattern, and thereby recreate the JIT data, but because JIT
+compilation uses significant resources, it is probably not worth doing this;
+you might as well recompile the original pattern.
+<a name="stackcontrol"></a></P>
+<br><a name="SEC8" href="#TOC1">CONTROLLING THE JIT STACK</a><br>
+<P>
+When the compiled JIT code runs, it needs a block of memory to use as a stack.
+By default, it uses 32K on the machine stack. However, some large or
+complicated patterns need more than this. The error PCRE_ERROR_JIT_STACKLIMIT
+is given when there is not enough stack. Three functions are provided for
+managing blocks of memory for use as JIT stacks. There is further discussion
+about the use of JIT stacks in the section entitled
+<a href="#stackcontrol">"JIT stack FAQ"</a>
+below.
+</P>
+<P>
+The <b>pcre_jit_stack_alloc()</b> function creates a JIT stack. Its arguments
+are a starting size and a maximum size, and it returns a pointer to an opaque
+structure of type <b>pcre_jit_stack</b>, or NULL if there is an error. The
+<b>pcre_jit_stack_free()</b> function can be used to free a stack that is no
+longer needed. (For the technically minded: the address space is allocated by
+mmap or VirtualAlloc.)
+</P>
+<P>
+JIT uses far less memory for recursion than the interpretive code,
+and a maximum stack size of 512K to 1M should be more than enough for any
+pattern.
+</P>
+<P>
+The <b>pcre_assign_jit_stack()</b> function specifies which stack JIT code
+should use. Its arguments are as follows:
+<pre>
+  pcre_extra         *extra
+  pcre_jit_callback  callback
+  void               *data
+</pre>
+The <i>extra</i> argument must be the result of studying a pattern with
+PCRE_STUDY_JIT_COMPILE etc. There are three cases for the values of the other
+two options:
+<pre>
+  (1) If <i>callback</i> is NULL and <i>data</i> is NULL, an internal 32K block
+      on the machine stack is used.
+
+  (2) If <i>callback</i> is NULL and <i>data</i> is not NULL, <i>data</i> must be
+      a valid JIT stack, the result of calling <b>pcre_jit_stack_alloc()</b>.
+
+  (3) If <i>callback</i> is not NULL, it must point to a function that is
+      called with <i>data</i> as an argument at the start of matching, in
+      order to set up a JIT stack. If the return from the callback
+      function is NULL, the internal 32K stack is used; otherwise the
+      return value must be a valid JIT stack, the result of calling
+      <b>pcre_jit_stack_alloc()</b>.
+</pre>
+A callback function is obeyed whenever JIT code is about to be run; it is not
+obeyed when <b>pcre_exec()</b> is called with options that are incompatible for
+JIT execution. A callback function can therefore be used to determine whether a
+match operation was executed by JIT or by the interpreter.
+</P>
+<P>
+You may safely use the same JIT stack for more than one pattern (either by
+assigning directly or by callback), as long as the patterns are all matched
+sequentially in the same thread. In a multithread application, if you do not
+specify a JIT stack, or if you assign or pass back NULL from a callback, that
+is thread-safe, because each thread has its own machine stack. However, if you
+assign or pass back a non-NULL JIT stack, this must be a different stack for
+each thread so that the application is thread-safe.
+</P>
+<P>
+Strictly speaking, even more is allowed. You can assign the same non-NULL stack
+to any number of patterns as long as they are not used for matching by multiple
+threads at the same time. For example, you can assign the same stack to all
+compiled patterns, and use a global mutex in the callback to wait until the
+stack is available for use. However, this is an inefficient solution, and not
+recommended.
+</P>
+<P>
+This is a suggestion for how a multithreaded program that needs to set up
+non-default JIT stacks might operate:
+<pre>
+  During thread initalization
+    thread_local_var = pcre_jit_stack_alloc(...)
+
+  During thread exit
+    pcre_jit_stack_free(thread_local_var)
+
+  Use a one-line callback function
+    return thread_local_var
+</pre>
+All the functions described in this section do nothing if JIT is not available,
+and <b>pcre_assign_jit_stack()</b> does nothing unless the <b>extra</b> argument
+is non-NULL and points to a <b>pcre_extra</b> block that is the result of a
+successful study with PCRE_STUDY_JIT_COMPILE etc.
+<a name="stackfaq"></a></P>
+<br><a name="SEC9" href="#TOC1">JIT STACK FAQ</a><br>
+<P>
+(1) Why do we need JIT stacks?
+<br>
+<br>
+PCRE (and JIT) is a recursive, depth-first engine, so it needs a stack where
+the local data of the current node is pushed before checking its child nodes.
+Allocating real machine stack on some platforms is difficult. For example, the
+stack chain needs to be updated every time if we extend the stack on PowerPC.
+Although it is possible, its updating time overhead decreases performance. So
+we do the recursion in memory.
+</P>
+<P>
+(2) Why don't we simply allocate blocks of memory with <b>malloc()</b>?
+<br>
+<br>
+Modern operating systems have a nice feature: they can reserve an address space
+instead of allocating memory. We can safely allocate memory pages inside this
+address space, so the stack could grow without moving memory data (this is
+important because of pointers). Thus we can allocate 1M address space, and use
+only a single memory page (usually 4K) if that is enough. However, we can still
+grow up to 1M anytime if needed.
+</P>
+<P>
+(3) Who "owns" a JIT stack?
+<br>
+<br>
+The owner of the stack is the user program, not the JIT studied pattern or
+anything else. The user program must ensure that if a stack is used by
+<b>pcre_exec()</b>, (that is, it is assigned to the pattern currently running),
+that stack must not be used by any other threads (to avoid overwriting the same
+memory area). The best practice for multithreaded programs is to allocate a
+stack for each thread, and return this stack through the JIT callback function.
+</P>
+<P>
+(4) When should a JIT stack be freed?
+<br>
+<br>
+You can free a JIT stack at any time, as long as it will not be used by
+<b>pcre_exec()</b> again. When you assign the stack to a pattern, only a pointer
+is set. There is no reference counting or any other magic. You can free the
+patterns and stacks in any order, anytime. Just <i>do not</i> call
+<b>pcre_exec()</b> with a pattern pointing to an already freed stack, as that
+will cause SEGFAULT. (Also, do not free a stack currently used by
+<b>pcre_exec()</b> in another thread). You can also replace the stack for a
+pattern at any time. You can even free the previous stack before assigning a
+replacement.
+</P>
+<P>
+(5) Should I allocate/free a stack every time before/after calling
+<b>pcre_exec()</b>?
+<br>
+<br>
+No, because this is too costly in terms of resources. However, you could
+implement some clever idea which release the stack if it is not used in let's
+say two minutes. The JIT callback can help to achive this without keeping a
+list of the currently JIT studied patterns.
+</P>
+<P>
+(6) OK, the stack is for long term memory allocation. But what happens if a
+pattern causes stack overflow with a stack of 1M? Is that 1M kept until the
+stack is freed?
+<br>
+<br>
+Especially on embedded sytems, it might be a good idea to release memory
+sometimes without freeing the stack. There is no API for this at the moment.
+Probably a function call which returns with the currently allocated memory for
+any stack and another which allows releasing memory (shrinking the stack) would
+be a good idea if someone needs this.
+</P>
+<P>
+(7) This is too much of a headache. Isn't there any better solution for JIT
+stack handling?
+<br>
+<br>
+No, thanks to Windows. If POSIX threads were used everywhere, we could throw
+out this complicated API.
+</P>
+<br><a name="SEC10" href="#TOC1">EXAMPLE CODE</a><br>
+<P>
+This is a single-threaded example that specifies a JIT stack without using a
+callback.
+<pre>
+  int rc;
+  int ovector[30];
+  pcre *re;
+  pcre_extra *extra;
+  pcre_jit_stack *jit_stack;
+
+  re = pcre_compile(pattern, 0, &error, &erroffset, NULL);
+  /* Check for errors */
+  extra = pcre_study(re, PCRE_STUDY_JIT_COMPILE, &error);
+  jit_stack = pcre_jit_stack_alloc(32*1024, 512*1024);
+  /* Check for error (NULL) */
+  pcre_assign_jit_stack(extra, NULL, jit_stack);
+  rc = pcre_exec(re, extra, subject, length, 0, 0, ovector, 30);
+  /* Check results */
+  pcre_free(re);
+  pcre_free_study(extra);
+  pcre_jit_stack_free(jit_stack);
+
+</PRE>
+</P>
+<br><a name="SEC11" href="#TOC1">SEE ALSO</a><br>
+<P>
+<b>pcreapi</b>(3)
+</P>
+<br><a name="SEC12" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel (FAQ by Zoltan Herczeg)
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC13" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 04 May 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrelimits.html b/8.31/doc/html/pcrelimits.html
new file mode 100644
index 0000000..10920c1
--- /dev/null
+++ b/8.31/doc/html/pcrelimits.html
@@ -0,0 +1,85 @@
+<html>
+<head>
+<title>pcrelimits specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrelimits man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+SIZE AND OTHER LIMITATIONS
+</b><br>
+<P>
+There are some size limitations in PCRE but it is hoped that they will never in
+practice be relevant.
+</P>
+<P>
+The maximum length of a compiled pattern is approximately 64K data units (bytes
+for the 8-bit library, 16-bit units for the 16-bit library) if PCRE is compiled
+with the default internal linkage size of 2 bytes. If you want to process
+regular expressions that are truly enormous, you can compile PCRE with an
+internal linkage size of 3 or 4 (when building the 16-bit library, 3 is rounded
+up to 4). See the <b>README</b> file in the source distribution and the
+<a href="pcrebuild.html"><b>pcrebuild</b></a>
+documentation for details. In these cases the limit is substantially larger.
+However, the speed of execution is slower.
+</P>
+<P>
+All values in repeating quantifiers must be less than 65536.
+</P>
+<P>
+There is no limit to the number of parenthesized subpatterns, but there can be
+no more than 65535 capturing subpatterns.
+</P>
+<P>
+There is a limit to the number of forward references to subsequent subpatterns
+of around 200,000. Repeated forward references with fixed upper limits, for
+example, (?2){0,100} when subpattern number 2 is to the right, are included in
+the count. There is no limit to the number of backward references.
+</P>
+<P>
+The maximum length of name for a named subpattern is 32 characters, and the
+maximum number of named subpatterns is 10000.
+</P>
+<P>
+The maximum length of a name in a (*MARK), (*PRUNE), (*SKIP), or (*THEN) verb
+is 255 for the 8-bit library and 65535 for the 16-bit library.
+</P>
+<P>
+The maximum length of a subject string is the largest positive number that an
+integer variable can hold. However, when using the traditional matching
+function, PCRE uses recursion to handle subpatterns and indefinite repetition.
+This means that the available stack space may limit the size of a subject
+string that can be processed by certain patterns. For a discussion of stack
+issues, see the
+<a href="pcrestack.html"><b>pcrestack</b></a>
+documentation.
+</P>
+<br><b>
+AUTHOR
+</b><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><b>
+REVISION
+</b><br>
+<P>
+Last updated: 04 May 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrematching.html b/8.31/doc/html/pcrematching.html
new file mode 100644
index 0000000..6abd17e
--- /dev/null
+++ b/8.31/doc/html/pcrematching.html
@@ -0,0 +1,232 @@
+<html>
+<head>
+<title>pcrematching specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrematching man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PCRE MATCHING ALGORITHMS</a>
+<li><a name="TOC2" href="#SEC2">REGULAR EXPRESSIONS AS TREES</a>
+<li><a name="TOC3" href="#SEC3">THE STANDARD MATCHING ALGORITHM</a>
+<li><a name="TOC4" href="#SEC4">THE ALTERNATIVE MATCHING ALGORITHM</a>
+<li><a name="TOC5" href="#SEC5">ADVANTAGES OF THE ALTERNATIVE ALGORITHM</a>
+<li><a name="TOC6" href="#SEC6">DISADVANTAGES OF THE ALTERNATIVE ALGORITHM</a>
+<li><a name="TOC7" href="#SEC7">AUTHOR</a>
+<li><a name="TOC8" href="#SEC8">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">PCRE MATCHING ALGORITHMS</a><br>
+<P>
+This document describes the two different algorithms that are available in PCRE
+for matching a compiled regular expression against a given subject string. The
+"standard" algorithm is the one provided by the <b>pcre_exec()</b> and
+<b>pcre16_exec()</b> functions. These work in the same was as Perl's matching
+function, and provide a Perl-compatible matching operation. The just-in-time
+(JIT) optimization that is described in the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation is compatible with these functions.
+</P>
+<P>
+An alternative algorithm is provided by the <b>pcre_dfa_exec()</b> and
+<b>pcre16_dfa_exec()</b> functions; they operate in a different way, and are not
+Perl-compatible. This alternative has advantages and disadvantages compared
+with the standard algorithm, and these are described below.
+</P>
+<P>
+When there is only one possible way in which a given subject string can match a
+pattern, the two algorithms give the same answer. A difference arises, however,
+when there are multiple possibilities. For example, if the pattern
+<pre>
+  ^&#60;.*&#62;
+</pre>
+is matched against the string
+<pre>
+  &#60;something&#62; &#60;something else&#62; &#60;something further&#62;
+</pre>
+there are three possible answers. The standard algorithm finds only one of
+them, whereas the alternative algorithm finds all three.
+</P>
+<br><a name="SEC2" href="#TOC1">REGULAR EXPRESSIONS AS TREES</a><br>
+<P>
+The set of strings that are matched by a regular expression can be represented
+as a tree structure. An unlimited repetition in the pattern makes the tree of
+infinite size, but it is still a tree. Matching the pattern to a given subject
+string (from a given starting point) can be thought of as a search of the tree.
+There are two ways to search a tree: depth-first and breadth-first, and these
+correspond to the two matching algorithms provided by PCRE.
+</P>
+<br><a name="SEC3" href="#TOC1">THE STANDARD MATCHING ALGORITHM</a><br>
+<P>
+In the terminology of Jeffrey Friedl's book "Mastering Regular
+Expressions", the standard algorithm is an "NFA algorithm". It conducts a
+depth-first search of the pattern tree. That is, it proceeds along a single
+path through the tree, checking that the subject matches what is required. When
+there is a mismatch, the algorithm tries any alternatives at the current point,
+and if they all fail, it backs up to the previous branch point in the tree, and
+tries the next alternative branch at that level. This often involves backing up
+(moving to the left) in the subject string as well. The order in which
+repetition branches are tried is controlled by the greedy or ungreedy nature of
+the quantifier.
+</P>
+<P>
+If a leaf node is reached, a matching string has been found, and at that point
+the algorithm stops. Thus, if there is more than one possible match, this
+algorithm returns the first one that it finds. Whether this is the shortest,
+the longest, or some intermediate length depends on the way the greedy and
+ungreedy repetition quantifiers are specified in the pattern.
+</P>
+<P>
+Because it ends up with a single path through the tree, it is relatively
+straightforward for this algorithm to keep track of the substrings that are
+matched by portions of the pattern in parentheses. This provides support for
+capturing parentheses and back references.
+</P>
+<br><a name="SEC4" href="#TOC1">THE ALTERNATIVE MATCHING ALGORITHM</a><br>
+<P>
+This algorithm conducts a breadth-first search of the tree. Starting from the
+first matching point in the subject, it scans the subject string from left to
+right, once, character by character, and as it does this, it remembers all the
+paths through the tree that represent valid matches. In Friedl's terminology,
+this is a kind of "DFA algorithm", though it is not implemented as a
+traditional finite state machine (it keeps multiple states active
+simultaneously).
+</P>
+<P>
+Although the general principle of this matching algorithm is that it scans the
+subject string only once, without backtracking, there is one exception: when a
+lookaround assertion is encountered, the characters following or preceding the
+current point have to be independently inspected.
+</P>
+<P>
+The scan continues until either the end of the subject is reached, or there are
+no more unterminated paths. At this point, terminated paths represent the
+different matching possibilities (if there are none, the match has failed).
+Thus, if there is more than one possible match, this algorithm finds all of
+them, and in particular, it finds the longest. The matches are returned in
+decreasing order of length. There is an option to stop the algorithm after the
+first match (which is necessarily the shortest) is found.
+</P>
+<P>
+Note that all the matches that are found start at the same point in the
+subject. If the pattern
+<pre>
+  cat(er(pillar)?)?
+</pre>
+is matched against the string "the caterpillar catchment", the result will be
+the three strings "caterpillar", "cater", and "cat" that start at the fifth
+character of the subject. The algorithm does not automatically move on to find
+matches that start at later positions.
+</P>
+<P>
+There are a number of features of PCRE regular expressions that are not
+supported by the alternative matching algorithm. They are as follows:
+</P>
+<P>
+1. Because the algorithm finds all possible matches, the greedy or ungreedy
+nature of repetition quantifiers is not relevant. Greedy and ungreedy
+quantifiers are treated in exactly the same way. However, possessive
+quantifiers can make a difference when what follows could also match what is
+quantified, for example in a pattern like this:
+<pre>
+  ^a++\w!
+</pre>
+This pattern matches "aaab!" but not "aaa!", which would be matched by a
+non-possessive quantifier. Similarly, if an atomic group is present, it is
+matched as if it were a standalone pattern at the current point, and the
+longest match is then "locked in" for the rest of the overall pattern.
+</P>
+<P>
+2. When dealing with multiple paths through the tree simultaneously, it is not
+straightforward to keep track of captured substrings for the different matching
+possibilities, and PCRE's implementation of this algorithm does not attempt to
+do this. This means that no captured substrings are available.
+</P>
+<P>
+3. Because no substrings are captured, back references within the pattern are
+not supported, and cause errors if encountered.
+</P>
+<P>
+4. For the same reason, conditional expressions that use a backreference as the
+condition or test for a specific group recursion are not supported.
+</P>
+<P>
+5. Because many paths through the tree may be active, the \K escape sequence,
+which resets the start of the match when encountered (but may be on some paths
+and not on others), is not supported. It causes an error if encountered.
+</P>
+<P>
+6. Callouts are supported, but the value of the <i>capture_top</i> field is
+always 1, and the value of the <i>capture_last</i> field is always -1.
+</P>
+<P>
+7. The \C escape sequence, which (in the standard algorithm) always matches a
+single data unit, even in UTF-8 or UTF-16 modes, is not supported in these
+modes, because the alternative algorithm moves through the subject string one
+character (not data unit) at a time, for all active paths through the tree.
+</P>
+<P>
+8. Except for (*FAIL), the backtracking control verbs such as (*PRUNE) are not
+supported. (*FAIL) is supported, and behaves like a failing negative assertion.
+</P>
+<br><a name="SEC5" href="#TOC1">ADVANTAGES OF THE ALTERNATIVE ALGORITHM</a><br>
+<P>
+Using the alternative matching algorithm provides the following advantages:
+</P>
+<P>
+1. All possible matches (at a single point in the subject) are automatically
+found, and in particular, the longest match is found. To find more than one
+match using the standard algorithm, you have to do kludgy things with
+callouts.
+</P>
+<P>
+2. Because the alternative algorithm scans the subject string just once, and
+never needs to backtrack (except for lookbehinds), it is possible to pass very
+long subject strings to the matching function in several pieces, checking for
+partial matching each time. Although it is possible to do multi-segment
+matching using the standard algorithm by retaining partially matched
+substrings, it is more complicated. The
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+documentation gives details of partial matching and discusses multi-segment
+matching.
+</P>
+<br><a name="SEC6" href="#TOC1">DISADVANTAGES OF THE ALTERNATIVE ALGORITHM</a><br>
+<P>
+The alternative algorithm suffers from a number of disadvantages:
+</P>
+<P>
+1. It is substantially slower than the standard algorithm. This is partly
+because it has to search for all possible matches, but is also because it is
+less susceptible to optimization.
+</P>
+<P>
+2. Capturing parentheses and back references are not supported.
+</P>
+<P>
+3. Although atomic groups are supported, their use does not provide the
+performance advantage that it does for the standard algorithm.
+</P>
+<br><a name="SEC7" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC8" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 08 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrepartial.html b/8.31/doc/html/pcrepartial.html
new file mode 100644
index 0000000..35c4d2d
--- /dev/null
+++ b/8.31/doc/html/pcrepartial.html
@@ -0,0 +1,474 @@
+<html>
+<head>
+<title>pcrepartial specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrepartial man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PARTIAL MATCHING IN PCRE</a>
+<li><a name="TOC2" href="#SEC2">PARTIAL MATCHING USING pcre_exec() OR pcre16_exec()</a>
+<li><a name="TOC3" href="#SEC3">PARTIAL MATCHING USING pcre_dfa_exec() OR pcre16_dfa_exec()</a>
+<li><a name="TOC4" href="#SEC4">PARTIAL MATCHING AND WORD BOUNDARIES</a>
+<li><a name="TOC5" href="#SEC5">FORMERLY RESTRICTED PATTERNS</a>
+<li><a name="TOC6" href="#SEC6">EXAMPLE OF PARTIAL MATCHING USING PCRETEST</a>
+<li><a name="TOC7" href="#SEC7">MULTI-SEGMENT MATCHING WITH pcre_dfa_exec() OR pcre16_dfa_exec()</a>
+<li><a name="TOC8" href="#SEC8">MULTI-SEGMENT MATCHING WITH pcre_exec() OR pcre16_exec()</a>
+<li><a name="TOC9" href="#SEC9">ISSUES WITH MULTI-SEGMENT MATCHING</a>
+<li><a name="TOC10" href="#SEC10">AUTHOR</a>
+<li><a name="TOC11" href="#SEC11">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">PARTIAL MATCHING IN PCRE</a><br>
+<P>
+In normal use of PCRE, if the subject string that is passed to a matching
+function matches as far as it goes, but is too short to match the entire
+pattern, PCRE_ERROR_NOMATCH is returned. There are circumstances where it might
+be helpful to distinguish this case from other cases in which there is no
+match.
+</P>
+<P>
+Consider, for example, an application where a human is required to type in data
+for a field with specific formatting requirements. An example might be a date
+in the form <i>ddmmmyy</i>, defined by this pattern:
+<pre>
+  ^\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d$
+</pre>
+If the application sees the user's keystrokes one by one, and can check that
+what has been typed so far is potentially valid, it is able to raise an error
+as soon as a mistake is made, by beeping and not reflecting the character that
+has been typed, for example. This immediate feedback is likely to be a better
+user interface than a check that is delayed until the entire string has been
+entered. Partial matching can also be useful when the subject string is very
+long and is not all available at once.
+</P>
+<P>
+PCRE supports partial matching by means of the PCRE_PARTIAL_SOFT and
+PCRE_PARTIAL_HARD options, which can be set when calling any of the matching
+functions. For backwards compatibility, PCRE_PARTIAL is a synonym for
+PCRE_PARTIAL_SOFT. The essential difference between the two options is whether
+or not a partial match is preferred to an alternative complete match, though
+the details differ between the two types of matching function. If both options
+are set, PCRE_PARTIAL_HARD takes precedence.
+</P>
+<P>
+If you want to use partial matching with just-in-time optimized code, you must
+call <b>pcre_study()</b> or <b>pcre16_study()</b> with one or both of these
+options:
+<pre>
+  PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+  PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+</pre>
+PCRE_STUDY_JIT_COMPILE should also be set if you are going to run non-partial
+matches on the same pattern. If the appropriate JIT study mode has not been set
+for a match, the interpretive matching code is used.
+</P>
+<P>
+Setting a partial matching option disables two of PCRE's standard
+optimizations. PCRE remembers the last literal data unit in a pattern, and
+abandons matching immediately if it is not present in the subject string. This
+optimization cannot be used for a subject string that might match only
+partially. If the pattern was studied, PCRE knows the minimum length of a
+matching string, and does not bother to run the matching function on shorter
+strings. This optimization is also disabled for partial matching.
+</P>
+<br><a name="SEC2" href="#TOC1">PARTIAL MATCHING USING pcre_exec() OR pcre16_exec()</a><br>
+<P>
+A partial match occurs during a call to <b>pcre_exec()</b> or
+<b>pcre16_exec()</b> when the end of the subject string is reached successfully,
+but matching cannot continue because more characters are needed. However, at
+least one character in the subject must have been inspected. This character
+need not form part of the final matched string; lookbehind assertions and the
+\K escape sequence provide ways of inspecting characters before the start of a
+matched substring. The requirement for inspecting at least one character exists
+because an empty string can always be matched; without such a restriction there
+would always be a partial match of an empty string at the end of the subject.
+</P>
+<P>
+If there are at least two slots in the offsets vector when a partial match is
+returned, the first slot is set to the offset of the earliest character that
+was inspected. For convenience, the second offset points to the end of the
+subject so that a substring can easily be identified.
+</P>
+<P>
+For the majority of patterns, the first offset identifies the start of the
+partially matched string. However, for patterns that contain lookbehind
+assertions, or \K, or begin with \b or \B, earlier characters have been
+inspected while carrying out the match. For example:
+<pre>
+  /(?&#60;=abc)123/
+</pre>
+This pattern matches "123", but only if it is preceded by "abc". If the subject
+string is "xyzabc12", the offsets after a partial match are for the substring
+"abc12", because all these characters are needed if another match is tried
+with extra characters added to the subject.
+</P>
+<P>
+What happens when a partial match is identified depends on which of the two
+partial matching options are set.
+</P>
+<br><b>
+PCRE_PARTIAL_SOFT WITH pcre_exec() OR pcre16_exec()
+</b><br>
+<P>
+If PCRE_PARTIAL_SOFT is set when <b>pcre_exec()</b> or <b>pcre16_exec()</b>
+identifies a partial match, the partial match is remembered, but matching
+continues as normal, and other alternatives in the pattern are tried. If no
+complete match can be found, PCRE_ERROR_PARTIAL is returned instead of
+PCRE_ERROR_NOMATCH.
+</P>
+<P>
+This option is "soft" because it prefers a complete match over a partial match.
+All the various matching items in a pattern behave as if the subject string is
+potentially complete. For example, \z, \Z, and $ match at the end of the
+subject, as normal, and for \b and \B the end of the subject is treated as a
+non-alphanumeric.
+</P>
+<P>
+If there is more than one partial match, the first one that was found provides
+the data that is returned. Consider this pattern:
+<pre>
+  /123\w+X|dogY/
+</pre>
+If this is matched against the subject string "abc123dog", both
+alternatives fail to match, but the end of the subject is reached during
+matching, so PCRE_ERROR_PARTIAL is returned. The offsets are set to 3 and 9,
+identifying "123dog" as the first partial match that was found. (In this
+example, there are two partial matches, because "dog" on its own partially
+matches the second alternative.)
+</P>
+<br><b>
+PCRE_PARTIAL_HARD WITH pcre_exec() OR pcre16_exec()
+</b><br>
+<P>
+If PCRE_PARTIAL_HARD is set for <b>pcre_exec()</b> or <b>pcre16_exec()</b>,
+PCRE_ERROR_PARTIAL is returned as soon as a partial match is found, without
+continuing to search for possible complete matches. This option is "hard"
+because it prefers an earlier partial match over a later complete match. For
+this reason, the assumption is made that the end of the supplied subject string
+may not be the true end of the available data, and so, if \z, \Z, \b, \B,
+or $ are encountered at the end of the subject, the result is
+PCRE_ERROR_PARTIAL, provided that at least one character in the subject has
+been inspected.
+</P>
+<P>
+Setting PCRE_PARTIAL_HARD also affects the way UTF-8 and UTF-16
+subject strings are checked for validity. Normally, an invalid sequence
+causes the error PCRE_ERROR_BADUTF8 or PCRE_ERROR_BADUTF16. However, in the
+special case of a truncated character at the end of the subject,
+PCRE_ERROR_SHORTUTF8 or PCRE_ERROR_SHORTUTF16 is returned when
+PCRE_PARTIAL_HARD is set.
+</P>
+<br><b>
+Comparing hard and soft partial matching
+</b><br>
+<P>
+The difference between the two partial matching options can be illustrated by a
+pattern such as:
+<pre>
+  /dog(sbody)?/
+</pre>
+This matches either "dog" or "dogsbody", greedily (that is, it prefers the
+longer string if possible). If it is matched against the string "dog" with
+PCRE_PARTIAL_SOFT, it yields a complete match for "dog". However, if
+PCRE_PARTIAL_HARD is set, the result is PCRE_ERROR_PARTIAL. On the other hand,
+if the pattern is made ungreedy the result is different:
+<pre>
+  /dog(sbody)??/
+</pre>
+In this case the result is always a complete match because that is found first,
+and matching never continues after finding a complete match. It might be easier
+to follow this explanation by thinking of the two patterns like this:
+<pre>
+  /dog(sbody)?/    is the same as  /dogsbody|dog/
+  /dog(sbody)??/   is the same as  /dog|dogsbody/
+</pre>
+The second pattern will never match "dogsbody", because it will always find the
+shorter match first.
+</P>
+<br><a name="SEC3" href="#TOC1">PARTIAL MATCHING USING pcre_dfa_exec() OR pcre16_dfa_exec()</a><br>
+<P>
+The DFA functions move along the subject string character by character, without
+backtracking, searching for all possible matches simultaneously. If the end of
+the subject is reached before the end of the pattern, there is the possibility
+of a partial match, again provided that at least one character has been
+inspected.
+</P>
+<P>
+When PCRE_PARTIAL_SOFT is set, PCRE_ERROR_PARTIAL is returned only if there
+have been no complete matches. Otherwise, the complete matches are returned.
+However, if PCRE_PARTIAL_HARD is set, a partial match takes precedence over any
+complete matches. The portion of the string that was inspected when the longest
+partial match was found is set as the first matching string, provided there are
+at least two slots in the offsets vector.
+</P>
+<P>
+Because the DFA functions always search for all possible matches, and there is
+no difference between greedy and ungreedy repetition, their behaviour is
+different from the standard functions when PCRE_PARTIAL_HARD is set. Consider
+the string "dog" matched against the ungreedy pattern shown above:
+<pre>
+  /dog(sbody)??/
+</pre>
+Whereas the standard functions stop as soon as they find the complete match for
+"dog", the DFA functions also find the partial match for "dogsbody", and so
+return that when PCRE_PARTIAL_HARD is set.
+</P>
+<br><a name="SEC4" href="#TOC1">PARTIAL MATCHING AND WORD BOUNDARIES</a><br>
+<P>
+If a pattern ends with one of sequences \b or \B, which test for word
+boundaries, partial matching with PCRE_PARTIAL_SOFT can give counter-intuitive
+results. Consider this pattern:
+<pre>
+  /\bcat\b/
+</pre>
+This matches "cat", provided there is a word boundary at either end. If the
+subject string is "the cat", the comparison of the final "t" with a following
+character cannot take place, so a partial match is found. However, normal
+matching carries on, and \b matches at the end of the subject when the last
+character is a letter, so a complete match is found. The result, therefore, is
+<i>not</i> PCRE_ERROR_PARTIAL. Using PCRE_PARTIAL_HARD in this case does yield
+PCRE_ERROR_PARTIAL, because then the partial match takes precedence.
+</P>
+<br><a name="SEC5" href="#TOC1">FORMERLY RESTRICTED PATTERNS</a><br>
+<P>
+For releases of PCRE prior to 8.00, because of the way certain internal
+optimizations were implemented in the <b>pcre_exec()</b> function, the
+PCRE_PARTIAL option (predecessor of PCRE_PARTIAL_SOFT) could not be used with
+all patterns. From release 8.00 onwards, the restrictions no longer apply, and
+partial matching with can be requested for any pattern.
+</P>
+<P>
+Items that were formerly restricted were repeated single characters and
+repeated metasequences. If PCRE_PARTIAL was set for a pattern that did not
+conform to the restrictions, <b>pcre_exec()</b> returned the error code
+PCRE_ERROR_BADPARTIAL (-13). This error code is no longer in use. The
+PCRE_INFO_OKPARTIAL call to <b>pcre_fullinfo()</b> to find out if a compiled
+pattern can be used for partial matching now always returns 1.
+</P>
+<br><a name="SEC6" href="#TOC1">EXAMPLE OF PARTIAL MATCHING USING PCRETEST</a><br>
+<P>
+If the escape sequence \P is present in a <b>pcretest</b> data line, the
+PCRE_PARTIAL_SOFT option is used for the match. Here is a run of <b>pcretest</b>
+that uses the date example quoted above:
+<pre>
+    re&#62; /^\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d$/
+  data&#62; 25jun04\P
+   0: 25jun04
+   1: jun
+  data&#62; 25dec3\P
+  Partial match: 23dec3
+  data&#62; 3ju\P
+  Partial match: 3ju
+  data&#62; 3juj\P
+  No match
+  data&#62; j\P
+  No match
+</pre>
+The first data string is matched completely, so <b>pcretest</b> shows the
+matched substrings. The remaining four strings do not match the complete
+pattern, but the first two are partial matches. Similar output is obtained
+if DFA matching is used.
+</P>
+<P>
+If the escape sequence \P is present more than once in a <b>pcretest</b> data
+line, the PCRE_PARTIAL_HARD option is set for the match.
+</P>
+<br><a name="SEC7" href="#TOC1">MULTI-SEGMENT MATCHING WITH pcre_dfa_exec() OR pcre16_dfa_exec()</a><br>
+<P>
+When a partial match has been found using a DFA matching function, it is
+possible to continue the match by providing additional subject data and calling
+the function again with the same compiled regular expression, this time setting
+the PCRE_DFA_RESTART option. You must pass the same working space as before,
+because this is where details of the previous partial match are stored. Here is
+an example using <b>pcretest</b>, using the \R escape sequence to set the
+PCRE_DFA_RESTART option (\D specifies the use of the DFA matching function):
+<pre>
+    re&#62; /^\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d$/
+  data&#62; 23ja\P\D
+  Partial match: 23ja
+  data&#62; n05\R\D
+   0: n05
+</pre>
+The first call has "23ja" as the subject, and requests partial matching; the
+second call has "n05" as the subject for the continued (restarted) match.
+Notice that when the match is complete, only the last part is shown; PCRE does
+not retain the previously partially-matched string. It is up to the calling
+program to do that if it needs to.
+</P>
+<P>
+You can set the PCRE_PARTIAL_SOFT or PCRE_PARTIAL_HARD options with
+PCRE_DFA_RESTART to continue partial matching over multiple segments. This
+facility can be used to pass very long subject strings to the DFA matching
+functions.
+</P>
+<br><a name="SEC8" href="#TOC1">MULTI-SEGMENT MATCHING WITH pcre_exec() OR pcre16_exec()</a><br>
+<P>
+From release 8.00, the standard matching functions can also be used to do
+multi-segment matching. Unlike the DFA functions, it is not possible to
+restart the previous match with a new segment of data. Instead, new data must
+be added to the previous subject string, and the entire match re-run, starting
+from the point where the partial match occurred. Earlier data can be discarded.
+</P>
+<P>
+It is best to use PCRE_PARTIAL_HARD in this situation, because it does not
+treat the end of a segment as the end of the subject when matching \z, \Z,
+\b, \B, and $. Consider an unanchored pattern that matches dates:
+<pre>
+    re&#62; /\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d/
+  data&#62; The date is 23ja\P\P
+  Partial match: 23ja
+</pre>
+At this stage, an application could discard the text preceding "23ja", add on
+text from the next segment, and call the matching function again. Unlike the
+DFA matching functions, the entire matching string must always be available,
+and the complete matching process occurs for each call, so more memory and more
+processing time is needed.
+</P>
+<P>
+<b>Note:</b> If the pattern contains lookbehind assertions, or \K, or starts
+with \b or \B, the string that is returned for a partial match includes
+characters that precede the partially matched string itself, because these must
+be retained when adding on more characters for a subsequent matching attempt.
+However, in some cases you may need to retain even earlier characters, as
+discussed in the next section.
+</P>
+<br><a name="SEC9" href="#TOC1">ISSUES WITH MULTI-SEGMENT MATCHING</a><br>
+<P>
+Certain types of pattern may give problems with multi-segment matching,
+whichever matching function is used.
+</P>
+<P>
+1. If the pattern contains a test for the beginning of a line, you need to pass
+the PCRE_NOTBOL option when the subject string for any call does start at the
+beginning of a line. There is also a PCRE_NOTEOL option, but in practice when
+doing multi-segment matching you should be using PCRE_PARTIAL_HARD, which
+includes the effect of PCRE_NOTEOL.
+</P>
+<P>
+2. Lookbehind assertions that have already been obeyed are catered for in the
+offsets that are returned for a partial match. However a lookbehind assertion
+later in the pattern could require even earlier characters to be inspected. You
+can handle this case by using the PCRE_INFO_MAXLOOKBEHIND option of the
+<b>pcre_fullinfo()</b> or <b>pcre16_fullinfo()</b> functions to obtain the length
+of the largest lookbehind in the pattern. This length is given in characters,
+not bytes. If you always retain at least that many characters before the
+partially matched string, all should be well. (Of course, near the start of the
+subject, fewer characters may be present; in that case all characters should be
+retained.)
+</P>
+<P>
+3. Because a partial match must always contain at least one character, what
+might be considered a partial match of an empty string actually gives a "no
+match" result. For example:
+<pre>
+    re&#62; /c(?&#60;=abc)x/
+  data&#62; ab\P
+  No match
+</pre>
+If the next segment begins "cx", a match should be found, but this will only
+happen if characters from the previous segment are retained. For this reason, a
+"no match" result should be interpreted as "partial match of an empty string"
+when the pattern contains lookbehinds.
+</P>
+<P>
+4. Matching a subject string that is split into multiple segments may not
+always produce exactly the same result as matching over one single long string,
+especially when PCRE_PARTIAL_SOFT is used. The section "Partial Matching and
+Word Boundaries" above describes an issue that arises if the pattern ends with
+\b or \B. Another kind of difference may occur when there are multiple
+matching possibilities, because (for PCRE_PARTIAL_SOFT) a partial match result
+is given only when there are no completed matches. This means that as soon as
+the shortest match has been found, continuation to a new subject segment is no
+longer possible. Consider again this <b>pcretest</b> example:
+<pre>
+    re&#62; /dog(sbody)?/
+  data&#62; dogsb\P
+   0: dog
+  data&#62; do\P\D
+  Partial match: do
+  data&#62; gsb\R\P\D
+   0: g
+  data&#62; dogsbody\D
+   0: dogsbody
+   1: dog
+</pre>
+The first data line passes the string "dogsb" to a standard matching function,
+setting the PCRE_PARTIAL_SOFT option. Although the string is a partial match
+for "dogsbody", the result is not PCRE_ERROR_PARTIAL, because the shorter
+string "dog" is a complete match. Similarly, when the subject is presented to
+a DFA matching function in several parts ("do" and "gsb" being the first two)
+the match stops when "dog" has been found, and it is not possible to continue.
+On the other hand, if "dogsbody" is presented as a single string, a DFA
+matching function finds both matches.
+</P>
+<P>
+Because of these problems, it is best to use PCRE_PARTIAL_HARD when matching
+multi-segment data. The example above then behaves differently:
+<pre>
+    re&#62; /dog(sbody)?/
+  data&#62; dogsb\P\P
+  Partial match: dogsb
+  data&#62; do\P\D
+  Partial match: do
+  data&#62; gsb\R\P\P\D
+  Partial match: gsb
+</pre>
+5. Patterns that contain alternatives at the top level which do not all start
+with the same pattern item may not work as expected when PCRE_DFA_RESTART is
+used. For example, consider this pattern:
+<pre>
+  1234|3789
+</pre>
+If the first part of the subject is "ABC123", a partial match of the first
+alternative is found at offset 3. There is no partial match for the second
+alternative, because such a match does not start at the same point in the
+subject string. Attempting to continue with the string "7890" does not yield a
+match because only those alternatives that match at one point in the subject
+are remembered. The problem arises because the start of the second alternative
+matches within the first alternative. There is no problem with anchored
+patterns or patterns such as:
+<pre>
+  1234|ABCD
+</pre>
+where no string can be a partial match for both alternatives. This is not a
+problem if a standard matching function is used, because the entire match has
+to be rerun each time:
+<pre>
+    re&#62; /1234|3789/
+  data&#62; ABC123\P\P
+  Partial match: 123
+  data&#62; 1237890
+   0: 3789
+</pre>
+Of course, instead of using PCRE_DFA_RESTART, the same technique of re-running
+the entire match can also be used with the DFA matching functions. Another
+possibility is to work with two buffers. If a partial match at offset <i>n</i>
+in the first buffer is followed by "no match" when PCRE_DFA_RESTART is used on
+the second buffer, you can then try a new match starting at offset <i>n+1</i> in
+the first buffer.
+</P>
+<br><a name="SEC10" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC11" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 24 February 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrepattern.html b/8.31/doc/html/pcrepattern.html
new file mode 100644
index 0000000..59619cc
--- /dev/null
+++ b/8.31/doc/html/pcrepattern.html
@@ -0,0 +1,2880 @@
+<html>
+<head>
+<title>pcrepattern specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrepattern man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PCRE REGULAR EXPRESSION DETAILS</a>
+<li><a name="TOC2" href="#SEC2">NEWLINE CONVENTIONS</a>
+<li><a name="TOC3" href="#SEC3">CHARACTERS AND METACHARACTERS</a>
+<li><a name="TOC4" href="#SEC4">BACKSLASH</a>
+<li><a name="TOC5" href="#SEC5">CIRCUMFLEX AND DOLLAR</a>
+<li><a name="TOC6" href="#SEC6">FULL STOP (PERIOD, DOT) AND \N</a>
+<li><a name="TOC7" href="#SEC7">MATCHING A SINGLE DATA UNIT</a>
+<li><a name="TOC8" href="#SEC8">SQUARE BRACKETS AND CHARACTER CLASSES</a>
+<li><a name="TOC9" href="#SEC9">POSIX CHARACTER CLASSES</a>
+<li><a name="TOC10" href="#SEC10">VERTICAL BAR</a>
+<li><a name="TOC11" href="#SEC11">INTERNAL OPTION SETTING</a>
+<li><a name="TOC12" href="#SEC12">SUBPATTERNS</a>
+<li><a name="TOC13" href="#SEC13">DUPLICATE SUBPATTERN NUMBERS</a>
+<li><a name="TOC14" href="#SEC14">NAMED SUBPATTERNS</a>
+<li><a name="TOC15" href="#SEC15">REPETITION</a>
+<li><a name="TOC16" href="#SEC16">ATOMIC GROUPING AND POSSESSIVE QUANTIFIERS</a>
+<li><a name="TOC17" href="#SEC17">BACK REFERENCES</a>
+<li><a name="TOC18" href="#SEC18">ASSERTIONS</a>
+<li><a name="TOC19" href="#SEC19">CONDITIONAL SUBPATTERNS</a>
+<li><a name="TOC20" href="#SEC20">COMMENTS</a>
+<li><a name="TOC21" href="#SEC21">RECURSIVE PATTERNS</a>
+<li><a name="TOC22" href="#SEC22">SUBPATTERNS AS SUBROUTINES</a>
+<li><a name="TOC23" href="#SEC23">ONIGURUMA SUBROUTINE SYNTAX</a>
+<li><a name="TOC24" href="#SEC24">CALLOUTS</a>
+<li><a name="TOC25" href="#SEC25">BACKTRACKING CONTROL</a>
+<li><a name="TOC26" href="#SEC26">SEE ALSO</a>
+<li><a name="TOC27" href="#SEC27">AUTHOR</a>
+<li><a name="TOC28" href="#SEC28">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">PCRE REGULAR EXPRESSION DETAILS</a><br>
+<P>
+The syntax and semantics of the regular expressions that are supported by PCRE
+are described in detail below. There is a quick-reference syntax summary in the
+<a href="pcresyntax.html"><b>pcresyntax</b></a>
+page. PCRE tries to match Perl syntax and semantics as closely as it can. PCRE
+also supports some alternative regular expression syntax (which does not
+conflict with the Perl syntax) in order to provide some compatibility with
+regular expressions in Python, .NET, and Oniguruma.
+</P>
+<P>
+Perl's regular expressions are described in its own documentation, and
+regular expressions in general are covered in a number of books, some of which
+have copious examples. Jeffrey Friedl's "Mastering Regular Expressions",
+published by O'Reilly, covers regular expressions in great detail. This
+description of PCRE's regular expressions is intended as reference material.
+</P>
+<P>
+The original operation of PCRE was on strings of one-byte characters. However,
+there is now also support for UTF-8 strings in the original library, and a
+second library that supports 16-bit and UTF-16 character strings. To use these
+features, PCRE must be built to include appropriate support. When using UTF
+strings you must either call the compiling function with the PCRE_UTF8 or
+PCRE_UTF16 option, or the pattern must start with one of these special
+sequences:
+<pre>
+  (*UTF8)
+  (*UTF16)
+</pre>
+Starting a pattern with such a sequence is equivalent to setting the relevant
+option. This feature is not Perl-compatible. How setting a UTF mode affects
+pattern matching is mentioned in several places below. There is also a summary
+of features in the
+<a href="pcreunicode.html"><b>pcreunicode</b></a>
+page.
+</P>
+<P>
+Another special sequence that may appear at the start of a pattern or in
+combination with (*UTF8) or (*UTF16) is:
+<pre>
+  (*UCP)
+</pre>
+This has the same effect as setting the PCRE_UCP option: it causes sequences
+such as \d and \w to use Unicode properties to determine character types,
+instead of recognizing only characters with codes less than 128 via a lookup
+table.
+</P>
+<P>
+If a pattern starts with (*NO_START_OPT), it has the same effect as setting the
+PCRE_NO_START_OPTIMIZE option either at compile or matching time. There are
+also some more of these special sequences that are concerned with the handling
+of newlines; they are described below.
+</P>
+<P>
+The remainder of this document discusses the patterns that are supported by
+PCRE when one its main matching functions, <b>pcre_exec()</b> (8-bit) or
+<b>pcre16_exec()</b> (16-bit), is used. PCRE also has alternative matching
+functions, <b>pcre_dfa_exec()</b> and <b>pcre16_dfa_exec()</b>, which match using
+a different algorithm that is not Perl-compatible. Some of the features
+discussed below are not available when DFA matching is used. The advantages and
+disadvantages of the alternative functions, and how they differ from the normal
+functions, are discussed in the
+<a href="pcrematching.html"><b>pcrematching</b></a>
+page.
+<a name="newlines"></a></P>
+<br><a name="SEC2" href="#TOC1">NEWLINE CONVENTIONS</a><br>
+<P>
+PCRE supports five different conventions for indicating line breaks in
+strings: a single CR (carriage return) character, a single LF (linefeed)
+character, the two-character sequence CRLF, any of the three preceding, or any
+Unicode newline sequence. The
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page has
+<a href="pcreapi.html#newlines">further discussion</a>
+about newlines, and shows how to set the newline convention in the
+<i>options</i> arguments for the compiling and matching functions.
+</P>
+<P>
+It is also possible to specify a newline convention by starting a pattern
+string with one of the following five sequences:
+<pre>
+  (*CR)        carriage return
+  (*LF)        linefeed
+  (*CRLF)      carriage return, followed by linefeed
+  (*ANYCRLF)   any of the three above
+  (*ANY)       all Unicode newline sequences
+</pre>
+These override the default and the options given to the compiling function. For
+example, on a Unix system where LF is the default newline sequence, the pattern
+<pre>
+  (*CR)a.b
+</pre>
+changes the convention to CR. That pattern matches "a\nb" because LF is no
+longer a newline. Note that these special settings, which are not
+Perl-compatible, are recognized only at the very start of a pattern, and that
+they must be in upper case. If more than one of them is present, the last one
+is used.
+</P>
+<P>
+The newline convention affects the interpretation of the dot metacharacter when
+PCRE_DOTALL is not set, and also the behaviour of \N. However, it does not
+affect what the \R escape sequence matches. By default, this is any Unicode
+newline sequence, for Perl compatibility. However, this can be changed; see the
+description of \R in the section entitled
+<a href="#newlineseq">"Newline sequences"</a>
+below. A change of \R setting can be combined with a change of newline
+convention.
+</P>
+<br><a name="SEC3" href="#TOC1">CHARACTERS AND METACHARACTERS</a><br>
+<P>
+A regular expression is a pattern that is matched against a subject string from
+left to right. Most characters stand for themselves in a pattern, and match the
+corresponding characters in the subject. As a trivial example, the pattern
+<pre>
+  The quick brown fox
+</pre>
+matches a portion of a subject string that is identical to itself. When
+caseless matching is specified (the PCRE_CASELESS option), letters are matched
+independently of case. In a UTF mode, PCRE always understands the concept of
+case for characters whose values are less than 128, so caseless matching is
+always possible. For characters with higher values, the concept of case is
+supported if PCRE is compiled with Unicode property support, but not otherwise.
+If you want to use caseless matching for characters 128 and above, you must
+ensure that PCRE is compiled with Unicode property support as well as with
+UTF support.
+</P>
+<P>
+The power of regular expressions comes from the ability to include alternatives
+and repetitions in the pattern. These are encoded in the pattern by the use of
+<i>metacharacters</i>, which do not stand for themselves but instead are
+interpreted in some special way.
+</P>
+<P>
+There are two different sets of metacharacters: those that are recognized
+anywhere in the pattern except within square brackets, and those that are
+recognized within square brackets. Outside square brackets, the metacharacters
+are as follows:
+<pre>
+  \      general escape character with several uses
+  ^      assert start of string (or line, in multiline mode)
+  $      assert end of string (or line, in multiline mode)
+  .      match any character except newline (by default)
+  [      start character class definition
+  |      start of alternative branch
+  (      start subpattern
+  )      end subpattern
+  ?      extends the meaning of (
+         also 0 or 1 quantifier
+         also quantifier minimizer
+  *      0 or more quantifier
+  +      1 or more quantifier
+         also "possessive quantifier"
+  {      start min/max quantifier
+</pre>
+Part of a pattern that is in square brackets is called a "character class". In
+a character class the only metacharacters are:
+<pre>
+  \      general escape character
+  ^      negate the class, but only if the first character
+  -      indicates character range
+  [      POSIX character class (only if followed by POSIX syntax)
+  ]      terminates the character class
+</pre>
+The following sections describe the use of each of the metacharacters.
+</P>
+<br><a name="SEC4" href="#TOC1">BACKSLASH</a><br>
+<P>
+The backslash character has several uses. Firstly, if it is followed by a
+character that is not a number or a letter, it takes away any special meaning
+that character may have. This use of backslash as an escape character applies
+both inside and outside character classes.
+</P>
+<P>
+For example, if you want to match a * character, you write \* in the pattern.
+This escaping action applies whether or not the following character would
+otherwise be interpreted as a metacharacter, so it is always safe to precede a
+non-alphanumeric with backslash to specify that it stands for itself. In
+particular, if you want to match a backslash, you write \\.
+</P>
+<P>
+In a UTF mode, only ASCII numbers and letters have any special meaning after a
+backslash. All other characters (in particular, those whose codepoints are
+greater than 127) are treated as literals.
+</P>
+<P>
+If a pattern is compiled with the PCRE_EXTENDED option, white space in the
+pattern (other than in a character class) and characters between a # outside
+a character class and the next newline are ignored. An escaping backslash can
+be used to include a white space or # character as part of the pattern.
+</P>
+<P>
+If you want to remove the special meaning from a sequence of characters, you
+can do so by putting them between \Q and \E. This is different from Perl in
+that $ and @ are handled as literals in \Q...\E sequences in PCRE, whereas in
+Perl, $ and @ cause variable interpolation. Note the following examples:
+<pre>
+  Pattern            PCRE matches   Perl matches
+
+  \Qabc$xyz\E        abc$xyz        abc followed by the contents of $xyz
+  \Qabc\$xyz\E       abc\$xyz       abc\$xyz
+  \Qabc\E\$\Qxyz\E   abc$xyz        abc$xyz
+</pre>
+The \Q...\E sequence is recognized both inside and outside character classes.
+An isolated \E that is not preceded by \Q is ignored. If \Q is not followed
+by \E later in the pattern, the literal interpretation continues to the end of
+the pattern (that is, \E is assumed at the end). If the isolated \Q is inside
+a character class, this causes an error, because the character class is not
+terminated.
+<a name="digitsafterbackslash"></a></P>
+<br><b>
+Non-printing characters
+</b><br>
+<P>
+A second use of backslash provides a way of encoding non-printing characters
+in patterns in a visible manner. There is no restriction on the appearance of
+non-printing characters, apart from the binary zero that terminates a pattern,
+but when a pattern is being prepared by text editing, it is often easier to use
+one of the following escape sequences than the binary character it represents:
+<pre>
+  \a        alarm, that is, the BEL character (hex 07)
+  \cx       "control-x", where x is any ASCII character
+  \e        escape (hex 1B)
+  \f        form feed (hex 0C)
+  \n        linefeed (hex 0A)
+  \r        carriage return (hex 0D)
+  \t        tab (hex 09)
+  \ddd      character with octal code ddd, or back reference
+  \xhh      character with hex code hh
+  \x{hhh..} character with hex code hhh.. (non-JavaScript mode)
+  \uhhhh    character with hex code hhhh (JavaScript mode only)
+</pre>
+The precise effect of \cx is as follows: if x is a lower case letter, it
+is converted to upper case. Then bit 6 of the character (hex 40) is inverted.
+Thus \cz becomes hex 1A (z is 7A), but \c{ becomes hex 3B ({ is 7B), while
+\c; becomes hex 7B (; is 3B). If the byte following \c has a value greater
+than 127, a compile-time error occurs. This locks out non-ASCII characters in
+all modes. (When PCRE is compiled in EBCDIC mode, all byte values are valid. A
+lower case letter is converted to upper case, and then the 0xc0 bits are
+flipped.)
+</P>
+<P>
+By default, after \x, from zero to two hexadecimal digits are read (letters
+can be in upper or lower case). Any number of hexadecimal digits may appear
+between \x{ and }, but the character code is constrained as follows:
+<pre>
+  8-bit non-UTF mode    less than 0x100
+  8-bit UTF-8 mode      less than 0x10ffff and a valid codepoint
+  16-bit non-UTF mode   less than 0x10000
+  16-bit UTF-16 mode    less than 0x10ffff and a valid codepoint
+</pre>
+Invalid Unicode codepoints are the range 0xd800 to 0xdfff (the so-called
+"surrogate" codepoints).
+</P>
+<P>
+If characters other than hexadecimal digits appear between \x{ and }, or if
+there is no terminating }, this form of escape is not recognized. Instead, the
+initial \x will be interpreted as a basic hexadecimal escape, with no
+following digits, giving a character whose value is zero.
+</P>
+<P>
+If the PCRE_JAVASCRIPT_COMPAT option is set, the interpretation of \x is
+as just described only when it is followed by two hexadecimal digits.
+Otherwise, it matches a literal "x" character. In JavaScript mode, support for
+code points greater than 256 is provided by \u, which must be followed by
+four hexadecimal digits; otherwise it matches a literal "u" character.
+Character codes specified by \u in JavaScript mode are constrained in the same
+was as those specified by \x in non-JavaScript mode.
+</P>
+<P>
+Characters whose value is less than 256 can be defined by either of the two
+syntaxes for \x (or by \u in JavaScript mode). There is no difference in the
+way they are handled. For example, \xdc is exactly the same as \x{dc} (or
+\u00dc in JavaScript mode).
+</P>
+<P>
+After \0 up to two further octal digits are read. If there are fewer than two
+digits, just those that are present are used. Thus the sequence \0\x\07
+specifies two binary zeros followed by a BEL character (code value 7). Make
+sure you supply two digits after the initial zero if the pattern character that
+follows is itself an octal digit.
+</P>
+<P>
+The handling of a backslash followed by a digit other than 0 is complicated.
+Outside a character class, PCRE reads it and any following digits as a decimal
+number. If the number is less than 10, or if there have been at least that many
+previous capturing left parentheses in the expression, the entire sequence is
+taken as a <i>back reference</i>. A description of how this works is given
+<a href="#backreferences">later,</a>
+following the discussion of
+<a href="#subpattern">parenthesized subpatterns.</a>
+</P>
+<P>
+Inside a character class, or if the decimal number is greater than 9 and there
+have not been that many capturing subpatterns, PCRE re-reads up to three octal
+digits following the backslash, and uses them to generate a data character. Any
+subsequent digits stand for themselves. The value of the character is
+constrained in the same way as characters specified in hexadecimal.
+For example:
+<pre>
+  \040   is another way of writing a space
+  \40    is the same, provided there are fewer than 40 previous capturing subpatterns
+  \7     is always a back reference
+  \11    might be a back reference, or another way of writing a tab
+  \011   is always a tab
+  \0113  is a tab followed by the character "3"
+  \113   might be a back reference, otherwise the character with octal code 113
+  \377   might be a back reference, otherwise the value 255 (decimal)
+  \81    is either a back reference, or a binary zero followed by the two characters "8" and "1"
+</pre>
+Note that octal values of 100 or greater must not be introduced by a leading
+zero, because no more than three octal digits are ever read.
+</P>
+<P>
+All the sequences that define a single character value can be used both inside
+and outside character classes. In addition, inside a character class, \b is
+interpreted as the backspace character (hex 08).
+</P>
+<P>
+\N is not allowed in a character class. \B, \R, and \X are not special
+inside a character class. Like other unrecognized escape sequences, they are
+treated as the literal characters "B", "R", and "X" by default, but cause an
+error if the PCRE_EXTRA option is set. Outside a character class, these
+sequences have different meanings.
+</P>
+<br><b>
+Unsupported escape sequences
+</b><br>
+<P>
+In Perl, the sequences \l, \L, \u, and \U are recognized by its string
+handler and used to modify the case of following characters. By default, PCRE
+does not support these escape sequences. However, if the PCRE_JAVASCRIPT_COMPAT
+option is set, \U matches a "U" character, and \u can be used to define a
+character by code point, as described in the previous section.
+</P>
+<br><b>
+Absolute and relative back references
+</b><br>
+<P>
+The sequence \g followed by an unsigned or a negative number, optionally
+enclosed in braces, is an absolute or relative back reference. A named back
+reference can be coded as \g{name}. Back references are discussed
+<a href="#backreferences">later,</a>
+following the discussion of
+<a href="#subpattern">parenthesized subpatterns.</a>
+</P>
+<br><b>
+Absolute and relative subroutine calls
+</b><br>
+<P>
+For compatibility with Oniguruma, the non-Perl syntax \g followed by a name or
+a number enclosed either in angle brackets or single quotes, is an alternative
+syntax for referencing a subpattern as a "subroutine". Details are discussed
+<a href="#onigurumasubroutines">later.</a>
+Note that \g{...} (Perl syntax) and \g&#60;...&#62; (Oniguruma syntax) are <i>not</i>
+synonymous. The former is a back reference; the latter is a
+<a href="#subpatternsassubroutines">subroutine</a>
+call.
+<a name="genericchartypes"></a></P>
+<br><b>
+Generic character types
+</b><br>
+<P>
+Another use of backslash is for specifying generic character types:
+<pre>
+  \d     any decimal digit
+  \D     any character that is not a decimal digit
+  \h     any horizontal white space character
+  \H     any character that is not a horizontal white space character
+  \s     any white space character
+  \S     any character that is not a white space character
+  \v     any vertical white space character
+  \V     any character that is not a vertical white space character
+  \w     any "word" character
+  \W     any "non-word" character
+</pre>
+There is also the single sequence \N, which matches a non-newline character.
+This is the same as
+<a href="#fullstopdot">the "." metacharacter</a>
+when PCRE_DOTALL is not set. Perl also uses \N to match characters by name;
+PCRE does not support this.
+</P>
+<P>
+Each pair of lower and upper case escape sequences partitions the complete set
+of characters into two disjoint sets. Any given character matches one, and only
+one, of each pair. The sequences can appear both inside and outside character
+classes. They each match one character of the appropriate type. If the current
+matching point is at the end of the subject string, all of them fail, because
+there is no character to match.
+</P>
+<P>
+For compatibility with Perl, \s does not match the VT character (code 11).
+This makes it different from the the POSIX "space" class. The \s characters
+are HT (9), LF (10), FF (12), CR (13), and space (32). If "use locale;" is
+included in a Perl script, \s may match the VT character. In PCRE, it never
+does.
+</P>
+<P>
+A "word" character is an underscore or any character that is a letter or digit.
+By default, the definition of letters and digits is controlled by PCRE's
+low-valued character tables, and may vary if locale-specific matching is taking
+place (see
+<a href="pcreapi.html#localesupport">"Locale support"</a>
+in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page). For example, in a French locale such as "fr_FR" in Unix-like systems,
+or "french" in Windows, some character codes greater than 128 are used for
+accented letters, and these are then matched by \w. The use of locales with
+Unicode is discouraged.
+</P>
+<P>
+By default, in a UTF mode, characters with values greater than 128 never match
+\d, \s, or \w, and always match \D, \S, and \W. These sequences retain
+their original meanings from before UTF support was available, mainly for
+efficiency reasons. However, if PCRE is compiled with Unicode property support,
+and the PCRE_UCP option is set, the behaviour is changed so that Unicode
+properties are used to determine character types, as follows:
+<pre>
+  \d  any character that \p{Nd} matches (decimal digit)
+  \s  any character that \p{Z} matches, plus HT, LF, FF, CR
+  \w  any character that \p{L} or \p{N} matches, plus underscore
+</pre>
+The upper case escapes match the inverse sets of characters. Note that \d
+matches only decimal digits, whereas \w matches any Unicode digit, as well as
+any Unicode letter, and underscore. Note also that PCRE_UCP affects \b, and
+\B because they are defined in terms of \w and \W. Matching these sequences
+is noticeably slower when PCRE_UCP is set.
+</P>
+<P>
+The sequences \h, \H, \v, and \V are features that were added to Perl at
+release 5.10. In contrast to the other sequences, which match only ASCII
+characters by default, these always match certain high-valued codepoints,
+whether or not PCRE_UCP is set. The horizontal space characters are:
+<pre>
+  U+0009     Horizontal tab
+  U+0020     Space
+  U+00A0     Non-break space
+  U+1680     Ogham space mark
+  U+180E     Mongolian vowel separator
+  U+2000     En quad
+  U+2001     Em quad
+  U+2002     En space
+  U+2003     Em space
+  U+2004     Three-per-em space
+  U+2005     Four-per-em space
+  U+2006     Six-per-em space
+  U+2007     Figure space
+  U+2008     Punctuation space
+  U+2009     Thin space
+  U+200A     Hair space
+  U+202F     Narrow no-break space
+  U+205F     Medium mathematical space
+  U+3000     Ideographic space
+</pre>
+The vertical space characters are:
+<pre>
+  U+000A     Linefeed
+  U+000B     Vertical tab
+  U+000C     Form feed
+  U+000D     Carriage return
+  U+0085     Next line
+  U+2028     Line separator
+  U+2029     Paragraph separator
+</pre>
+In 8-bit, non-UTF-8 mode, only the characters with codepoints less than 256 are
+relevant.
+<a name="newlineseq"></a></P>
+<br><b>
+Newline sequences
+</b><br>
+<P>
+Outside a character class, by default, the escape sequence \R matches any
+Unicode newline sequence. In 8-bit non-UTF-8 mode \R is equivalent to the
+following:
+<pre>
+  (?&#62;\r\n|\n|\x0b|\f|\r|\x85)
+</pre>
+This is an example of an "atomic group", details of which are given
+<a href="#atomicgroup">below.</a>
+This particular group matches either the two-character sequence CR followed by
+LF, or one of the single characters LF (linefeed, U+000A), VT (vertical tab,
+U+000B), FF (form feed, U+000C), CR (carriage return, U+000D), or NEL (next
+line, U+0085). The two-character sequence is treated as a single unit that
+cannot be split.
+</P>
+<P>
+In other modes, two additional characters whose codepoints are greater than 255
+are added: LS (line separator, U+2028) and PS (paragraph separator, U+2029).
+Unicode character property support is not needed for these characters to be
+recognized.
+</P>
+<P>
+It is possible to restrict \R to match only CR, LF, or CRLF (instead of the
+complete set of Unicode line endings) by setting the option PCRE_BSR_ANYCRLF
+either at compile time or when the pattern is matched. (BSR is an abbrevation
+for "backslash R".) This can be made the default when PCRE is built; if this is
+the case, the other behaviour can be requested via the PCRE_BSR_UNICODE option.
+It is also possible to specify these settings by starting a pattern string with
+one of the following sequences:
+<pre>
+  (*BSR_ANYCRLF)   CR, LF, or CRLF only
+  (*BSR_UNICODE)   any Unicode newline sequence
+</pre>
+These override the default and the options given to the compiling function, but
+they can themselves be overridden by options given to a matching function. Note
+that these special settings, which are not Perl-compatible, are recognized only
+at the very start of a pattern, and that they must be in upper case. If more
+than one of them is present, the last one is used. They can be combined with a
+change of newline convention; for example, a pattern can start with:
+<pre>
+  (*ANY)(*BSR_ANYCRLF)
+</pre>
+They can also be combined with the (*UTF8), (*UTF16), or (*UCP) special
+sequences. Inside a character class, \R is treated as an unrecognized escape
+sequence, and so matches the letter "R" by default, but causes an error if
+PCRE_EXTRA is set.
+<a name="uniextseq"></a></P>
+<br><b>
+Unicode character properties
+</b><br>
+<P>
+When PCRE is built with Unicode character property support, three additional
+escape sequences that match characters with specific properties are available.
+When in 8-bit non-UTF-8 mode, these sequences are of course limited to testing
+characters whose codepoints are less than 256, but they do work in this mode.
+The extra escape sequences are:
+<pre>
+  \p{<i>xx</i>}   a character with the <i>xx</i> property
+  \P{<i>xx</i>}   a character without the <i>xx</i> property
+  \X       an extended Unicode sequence
+</pre>
+The property names represented by <i>xx</i> above are limited to the Unicode
+script names, the general category properties, "Any", which matches any
+character (including newline), and some special PCRE properties (described
+in the
+<a href="#extraprops">next section).</a>
+Other Perl properties such as "InMusicalSymbols" are not currently supported by
+PCRE. Note that \P{Any} does not match any characters, so always causes a
+match failure.
+</P>
+<P>
+Sets of Unicode characters are defined as belonging to certain scripts. A
+character from one of these sets can be matched using a script name. For
+example:
+<pre>
+  \p{Greek}
+  \P{Han}
+</pre>
+Those that are not part of an identified script are lumped together as
+"Common". The current list of scripts is:
+</P>
+<P>
+Arabic,
+Armenian,
+Avestan,
+Balinese,
+Bamum,
+Batak,
+Bengali,
+Bopomofo,
+Brahmi,
+Braille,
+Buginese,
+Buhid,
+Canadian_Aboriginal,
+Carian,
+Chakma,
+Cham,
+Cherokee,
+Common,
+Coptic,
+Cuneiform,
+Cypriot,
+Cyrillic,
+Deseret,
+Devanagari,
+Egyptian_Hieroglyphs,
+Ethiopic,
+Georgian,
+Glagolitic,
+Gothic,
+Greek,
+Gujarati,
+Gurmukhi,
+Han,
+Hangul,
+Hanunoo,
+Hebrew,
+Hiragana,
+Imperial_Aramaic,
+Inherited,
+Inscriptional_Pahlavi,
+Inscriptional_Parthian,
+Javanese,
+Kaithi,
+Kannada,
+Katakana,
+Kayah_Li,
+Kharoshthi,
+Khmer,
+Lao,
+Latin,
+Lepcha,
+Limbu,
+Linear_B,
+Lisu,
+Lycian,
+Lydian,
+Malayalam,
+Mandaic,
+Meetei_Mayek,
+Meroitic_Cursive,
+Meroitic_Hieroglyphs,
+Miao,
+Mongolian,
+Myanmar,
+New_Tai_Lue,
+Nko,
+Ogham,
+Old_Italic,
+Old_Persian,
+Old_South_Arabian,
+Old_Turkic,
+Ol_Chiki,
+Oriya,
+Osmanya,
+Phags_Pa,
+Phoenician,
+Rejang,
+Runic,
+Samaritan,
+Saurashtra,
+Sharada,
+Shavian,
+Sinhala,
+Sora_Sompeng,
+Sundanese,
+Syloti_Nagri,
+Syriac,
+Tagalog,
+Tagbanwa,
+Tai_Le,
+Tai_Tham,
+Tai_Viet,
+Takri,
+Tamil,
+Telugu,
+Thaana,
+Thai,
+Tibetan,
+Tifinagh,
+Ugaritic,
+Vai,
+Yi.
+</P>
+<P>
+Each character has exactly one Unicode general category property, specified by
+a two-letter abbreviation. For compatibility with Perl, negation can be
+specified by including a circumflex between the opening brace and the property
+name. For example, \p{^Lu} is the same as \P{Lu}.
+</P>
+<P>
+If only one letter is specified with \p or \P, it includes all the general
+category properties that start with that letter. In this case, in the absence
+of negation, the curly brackets in the escape sequence are optional; these two
+examples have the same effect:
+<pre>
+  \p{L}
+  \pL
+</pre>
+The following general category property codes are supported:
+<pre>
+  C     Other
+  Cc    Control
+  Cf    Format
+  Cn    Unassigned
+  Co    Private use
+  Cs    Surrogate
+
+  L     Letter
+  Ll    Lower case letter
+  Lm    Modifier letter
+  Lo    Other letter
+  Lt    Title case letter
+  Lu    Upper case letter
+
+  M     Mark
+  Mc    Spacing mark
+  Me    Enclosing mark
+  Mn    Non-spacing mark
+
+  N     Number
+  Nd    Decimal number
+  Nl    Letter number
+  No    Other number
+
+  P     Punctuation
+  Pc    Connector punctuation
+  Pd    Dash punctuation
+  Pe    Close punctuation
+  Pf    Final punctuation
+  Pi    Initial punctuation
+  Po    Other punctuation
+  Ps    Open punctuation
+
+  S     Symbol
+  Sc    Currency symbol
+  Sk    Modifier symbol
+  Sm    Mathematical symbol
+  So    Other symbol
+
+  Z     Separator
+  Zl    Line separator
+  Zp    Paragraph separator
+  Zs    Space separator
+</pre>
+The special property L& is also supported: it matches a character that has
+the Lu, Ll, or Lt property, in other words, a letter that is not classified as
+a modifier or "other".
+</P>
+<P>
+The Cs (Surrogate) property applies only to characters in the range U+D800 to
+U+DFFF. Such characters are not valid in Unicode strings and so
+cannot be tested by PCRE, unless UTF validity checking has been turned off
+(see the discussion of PCRE_NO_UTF8_CHECK and PCRE_NO_UTF16_CHECK in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+page). Perl does not support the Cs property.
+</P>
+<P>
+The long synonyms for property names that Perl supports (such as \p{Letter})
+are not supported by PCRE, nor is it permitted to prefix any of these
+properties with "Is".
+</P>
+<P>
+No character that is in the Unicode table has the Cn (unassigned) property.
+Instead, this property is assumed for any code point that is not in the
+Unicode table.
+</P>
+<P>
+Specifying caseless matching does not affect these escape sequences. For
+example, \p{Lu} always matches only upper case letters.
+</P>
+<P>
+The \X escape matches any number of Unicode characters that form an extended
+Unicode sequence. \X is equivalent to
+<pre>
+  (?&#62;\PM\pM*)
+</pre>
+That is, it matches a character without the "mark" property, followed by zero
+or more characters with the "mark" property, and treats the sequence as an
+atomic group
+<a href="#atomicgroup">(see below).</a>
+Characters with the "mark" property are typically accents that affect the
+preceding character. None of them have codepoints less than 256, so in
+8-bit non-UTF-8 mode \X matches any one character.
+</P>
+<P>
+Note that recent versions of Perl have changed \X to match what Unicode calls
+an "extended grapheme cluster", which has a more complicated definition.
+</P>
+<P>
+Matching characters by Unicode property is not fast, because PCRE has to search
+a structure that contains data for over fifteen thousand characters. That is
+why the traditional escape sequences such as \d and \w do not use Unicode
+properties in PCRE by default, though you can make them do so by setting the
+PCRE_UCP option or by starting the pattern with (*UCP).
+<a name="extraprops"></a></P>
+<br><b>
+PCRE's additional properties
+</b><br>
+<P>
+As well as the standard Unicode properties described in the previous
+section, PCRE supports four more that make it possible to convert traditional
+escape sequences such as \w and \s and POSIX character classes to use Unicode
+properties. PCRE uses these non-standard, non-Perl properties internally when
+PCRE_UCP is set. They are:
+<pre>
+  Xan   Any alphanumeric character
+  Xps   Any POSIX space character
+  Xsp   Any Perl space character
+  Xwd   Any Perl "word" character
+</pre>
+Xan matches characters that have either the L (letter) or the N (number)
+property. Xps matches the characters tab, linefeed, vertical tab, form feed, or
+carriage return, and any other character that has the Z (separator) property.
+Xsp is the same as Xps, except that vertical tab is excluded. Xwd matches the
+same characters as Xan, plus underscore.
+<a name="resetmatchstart"></a></P>
+<br><b>
+Resetting the match start
+</b><br>
+<P>
+The escape sequence \K causes any previously matched characters not to be
+included in the final matched sequence. For example, the pattern:
+<pre>
+  foo\Kbar
+</pre>
+matches "foobar", but reports that it has matched "bar". This feature is
+similar to a lookbehind assertion
+<a href="#lookbehind">(described below).</a>
+However, in this case, the part of the subject before the real match does not
+have to be of fixed length, as lookbehind assertions do. The use of \K does
+not interfere with the setting of
+<a href="#subpattern">captured substrings.</a>
+For example, when the pattern
+<pre>
+  (foo)\Kbar
+</pre>
+matches "foobar", the first substring is still set to "foo".
+</P>
+<P>
+Perl documents that the use of \K within assertions is "not well defined". In
+PCRE, \K is acted upon when it occurs inside positive assertions, but is
+ignored in negative assertions.
+<a name="smallassertions"></a></P>
+<br><b>
+Simple assertions
+</b><br>
+<P>
+The final use of backslash is for certain simple assertions. An assertion
+specifies a condition that has to be met at a particular point in a match,
+without consuming any characters from the subject string. The use of
+subpatterns for more complicated assertions is described
+<a href="#bigassertions">below.</a>
+The backslashed assertions are:
+<pre>
+  \b     matches at a word boundary
+  \B     matches when not at a word boundary
+  \A     matches at the start of the subject
+  \Z     matches at the end of the subject
+          also matches before a newline at the end of the subject
+  \z     matches only at the end of the subject
+  \G     matches at the first matching position in the subject
+</pre>
+Inside a character class, \b has a different meaning; it matches the backspace
+character. If any other of these assertions appears in a character class, by
+default it matches the corresponding literal character (for example, \B
+matches the letter B). However, if the PCRE_EXTRA option is set, an "invalid
+escape sequence" error is generated instead.
+</P>
+<P>
+A word boundary is a position in the subject string where the current character
+and the previous character do not both match \w or \W (i.e. one matches
+\w and the other matches \W), or the start or end of the string if the
+first or last character matches \w, respectively. In a UTF mode, the meanings
+of \w and \W can be changed by setting the PCRE_UCP option. When this is
+done, it also affects \b and \B. Neither PCRE nor Perl has a separate "start
+of word" or "end of word" metasequence. However, whatever follows \b normally
+determines which it is. For example, the fragment \ba matches "a" at the start
+of a word.
+</P>
+<P>
+The \A, \Z, and \z assertions differ from the traditional circumflex and
+dollar (described in the next section) in that they only ever match at the very
+start and end of the subject string, whatever options are set. Thus, they are
+independent of multiline mode. These three assertions are not affected by the
+PCRE_NOTBOL or PCRE_NOTEOL options, which affect only the behaviour of the
+circumflex and dollar metacharacters. However, if the <i>startoffset</i>
+argument of <b>pcre_exec()</b> is non-zero, indicating that matching is to start
+at a point other than the beginning of the subject, \A can never match. The
+difference between \Z and \z is that \Z matches before a newline at the end
+of the string as well as at the very end, whereas \z matches only at the end.
+</P>
+<P>
+The \G assertion is true only when the current matching position is at the
+start point of the match, as specified by the <i>startoffset</i> argument of
+<b>pcre_exec()</b>. It differs from \A when the value of <i>startoffset</i> is
+non-zero. By calling <b>pcre_exec()</b> multiple times with appropriate
+arguments, you can mimic Perl's /g option, and it is in this kind of
+implementation where \G can be useful.
+</P>
+<P>
+Note, however, that PCRE's interpretation of \G, as the start of the current
+match, is subtly different from Perl's, which defines it as the end of the
+previous match. In Perl, these can be different when the previously matched
+string was empty. Because PCRE does just one match at a time, it cannot
+reproduce this behaviour.
+</P>
+<P>
+If all the alternatives of a pattern begin with \G, the expression is anchored
+to the starting match position, and the "anchored" flag is set in the compiled
+regular expression.
+</P>
+<br><a name="SEC5" href="#TOC1">CIRCUMFLEX AND DOLLAR</a><br>
+<P>
+Outside a character class, in the default matching mode, the circumflex
+character is an assertion that is true only if the current matching point is
+at the start of the subject string. If the <i>startoffset</i> argument of
+<b>pcre_exec()</b> is non-zero, circumflex can never match if the PCRE_MULTILINE
+option is unset. Inside a character class, circumflex has an entirely different
+meaning
+<a href="#characterclass">(see below).</a>
+</P>
+<P>
+Circumflex need not be the first character of the pattern if a number of
+alternatives are involved, but it should be the first thing in each alternative
+in which it appears if the pattern is ever to match that branch. If all
+possible alternatives start with a circumflex, that is, if the pattern is
+constrained to match only at the start of the subject, it is said to be an
+"anchored" pattern. (There are also other constructs that can cause a pattern
+to be anchored.)
+</P>
+<P>
+A dollar character is an assertion that is true only if the current matching
+point is at the end of the subject string, or immediately before a newline
+at the end of the string (by default). Dollar need not be the last character of
+the pattern if a number of alternatives are involved, but it should be the last
+item in any branch in which it appears. Dollar has no special meaning in a
+character class.
+</P>
+<P>
+The meaning of dollar can be changed so that it matches only at the very end of
+the string, by setting the PCRE_DOLLAR_ENDONLY option at compile time. This
+does not affect the \Z assertion.
+</P>
+<P>
+The meanings of the circumflex and dollar characters are changed if the
+PCRE_MULTILINE option is set. When this is the case, a circumflex matches
+immediately after internal newlines as well as at the start of the subject
+string. It does not match after a newline that ends the string. A dollar
+matches before any newlines in the string, as well as at the very end, when
+PCRE_MULTILINE is set. When newline is specified as the two-character
+sequence CRLF, isolated CR and LF characters do not indicate newlines.
+</P>
+<P>
+For example, the pattern /^abc$/ matches the subject string "def\nabc" (where
+\n represents a newline) in multiline mode, but not otherwise. Consequently,
+patterns that are anchored in single line mode because all branches start with
+^ are not anchored in multiline mode, and a match for circumflex is possible
+when the <i>startoffset</i> argument of <b>pcre_exec()</b> is non-zero. The
+PCRE_DOLLAR_ENDONLY option is ignored if PCRE_MULTILINE is set.
+</P>
+<P>
+Note that the sequences \A, \Z, and \z can be used to match the start and
+end of the subject in both modes, and if all branches of a pattern start with
+\A it is always anchored, whether or not PCRE_MULTILINE is set.
+<a name="fullstopdot"></a></P>
+<br><a name="SEC6" href="#TOC1">FULL STOP (PERIOD, DOT) AND \N</a><br>
+<P>
+Outside a character class, a dot in the pattern matches any one character in
+the subject string except (by default) a character that signifies the end of a
+line.
+</P>
+<P>
+When a line ending is defined as a single character, dot never matches that
+character; when the two-character sequence CRLF is used, dot does not match CR
+if it is immediately followed by LF, but otherwise it matches all characters
+(including isolated CRs and LFs). When any Unicode line endings are being
+recognized, dot does not match CR or LF or any of the other line ending
+characters.
+</P>
+<P>
+The behaviour of dot with regard to newlines can be changed. If the PCRE_DOTALL
+option is set, a dot matches any one character, without exception. If the
+two-character sequence CRLF is present in the subject string, it takes two dots
+to match it.
+</P>
+<P>
+The handling of dot is entirely independent of the handling of circumflex and
+dollar, the only relationship being that they both involve newlines. Dot has no
+special meaning in a character class.
+</P>
+<P>
+The escape sequence \N behaves like a dot, except that it is not affected by
+the PCRE_DOTALL option. In other words, it matches any character except one
+that signifies the end of a line. Perl also uses \N to match characters by
+name; PCRE does not support this.
+</P>
+<br><a name="SEC7" href="#TOC1">MATCHING A SINGLE DATA UNIT</a><br>
+<P>
+Outside a character class, the escape sequence \C matches any one data unit,
+whether or not a UTF mode is set. In the 8-bit library, one data unit is one
+byte; in the 16-bit library it is a 16-bit unit. Unlike a dot, \C always
+matches line-ending characters. The feature is provided in Perl in order to
+match individual bytes in UTF-8 mode, but it is unclear how it can usefully be
+used. Because \C breaks up characters into individual data units, matching one
+unit with \C in a UTF mode means that the rest of the string may start with a
+malformed UTF character. This has undefined results, because PCRE assumes that
+it is dealing with valid UTF strings (and by default it checks this at the
+start of processing unless the PCRE_NO_UTF8_CHECK or PCRE_NO_UTF16_CHECK option
+is used).
+</P>
+<P>
+PCRE does not allow \C to appear in lookbehind assertions
+<a href="#lookbehind">(described below)</a>
+in a UTF mode, because this would make it impossible to calculate the length of
+the lookbehind.
+</P>
+<P>
+In general, the \C escape sequence is best avoided. However, one
+way of using it that avoids the problem of malformed UTF characters is to use a
+lookahead to check the length of the next character, as in this pattern, which
+could be used with a UTF-8 string (ignore white space and line breaks):
+<pre>
+  (?| (?=[\x00-\x7f])(\C) |
+      (?=[\x80-\x{7ff}])(\C)(\C) |
+      (?=[\x{800}-\x{ffff}])(\C)(\C)(\C) |
+      (?=[\x{10000}-\x{1fffff}])(\C)(\C)(\C)(\C))
+</pre>
+A group that starts with (?| resets the capturing parentheses numbers in each
+alternative (see
+<a href="#dupsubpatternnumber">"Duplicate Subpattern Numbers"</a>
+below). The assertions at the start of each branch check the next UTF-8
+character for values whose encoding uses 1, 2, 3, or 4 bytes, respectively. The
+character's individual bytes are then captured by the appropriate number of
+groups.
+<a name="characterclass"></a></P>
+<br><a name="SEC8" href="#TOC1">SQUARE BRACKETS AND CHARACTER CLASSES</a><br>
+<P>
+An opening square bracket introduces a character class, terminated by a closing
+square bracket. A closing square bracket on its own is not special by default.
+However, if the PCRE_JAVASCRIPT_COMPAT option is set, a lone closing square
+bracket causes a compile-time error. If a closing square bracket is required as
+a member of the class, it should be the first data character in the class
+(after an initial circumflex, if present) or escaped with a backslash.
+</P>
+<P>
+A character class matches a single character in the subject. In a UTF mode, the
+character may be more than one data unit long. A matched character must be in
+the set of characters defined by the class, unless the first character in the
+class definition is a circumflex, in which case the subject character must not
+be in the set defined by the class. If a circumflex is actually required as a
+member of the class, ensure it is not the first character, or escape it with a
+backslash.
+</P>
+<P>
+For example, the character class [aeiou] matches any lower case vowel, while
+[^aeiou] matches any character that is not a lower case vowel. Note that a
+circumflex is just a convenient notation for specifying the characters that
+are in the class by enumerating those that are not. A class that starts with a
+circumflex is not an assertion; it still consumes a character from the subject
+string, and therefore it fails if the current pointer is at the end of the
+string.
+</P>
+<P>
+In UTF-8 (UTF-16) mode, characters with values greater than 255 (0xffff) can be
+included in a class as a literal string of data units, or by using the \x{
+escaping mechanism.
+</P>
+<P>
+When caseless matching is set, any letters in a class represent both their
+upper case and lower case versions, so for example, a caseless [aeiou] matches
+"A" as well as "a", and a caseless [^aeiou] does not match "A", whereas a
+caseful version would. In a UTF mode, PCRE always understands the concept of
+case for characters whose values are less than 128, so caseless matching is
+always possible. For characters with higher values, the concept of case is
+supported if PCRE is compiled with Unicode property support, but not otherwise.
+If you want to use caseless matching in a UTF mode for characters 128 and
+above, you must ensure that PCRE is compiled with Unicode property support as
+well as with UTF support.
+</P>
+<P>
+Characters that might indicate line breaks are never treated in any special way
+when matching character classes, whatever line-ending sequence is in use, and
+whatever setting of the PCRE_DOTALL and PCRE_MULTILINE options is used. A class
+such as [^a] always matches one of these characters.
+</P>
+<P>
+The minus (hyphen) character can be used to specify a range of characters in a
+character class. For example, [d-m] matches any letter between d and m,
+inclusive. If a minus character is required in a class, it must be escaped with
+a backslash or appear in a position where it cannot be interpreted as
+indicating a range, typically as the first or last character in the class.
+</P>
+<P>
+It is not possible to have the literal character "]" as the end character of a
+range. A pattern such as [W-]46] is interpreted as a class of two characters
+("W" and "-") followed by a literal string "46]", so it would match "W46]" or
+"-46]". However, if the "]" is escaped with a backslash it is interpreted as
+the end of range, so [W-\]46] is interpreted as a class containing a range
+followed by two other characters. The octal or hexadecimal representation of
+"]" can also be used to end a range.
+</P>
+<P>
+Ranges operate in the collating sequence of character values. They can also be
+used for characters specified numerically, for example [\000-\037]. Ranges
+can include any characters that are valid for the current mode.
+</P>
+<P>
+If a range that includes letters is used when caseless matching is set, it
+matches the letters in either case. For example, [W-c] is equivalent to
+[][\\^_`wxyzabc], matched caselessly, and in a non-UTF mode, if character
+tables for a French locale are in use, [\xc8-\xcb] matches accented E
+characters in both cases. In UTF modes, PCRE supports the concept of case for
+characters with values greater than 128 only when it is compiled with Unicode
+property support.
+</P>
+<P>
+The character escape sequences \d, \D, \h, \H, \p, \P, \s, \S, \v,
+\V, \w, and \W may appear in a character class, and add the characters that
+they match to the class. For example, [\dABCDEF] matches any hexadecimal
+digit. In UTF modes, the PCRE_UCP option affects the meanings of \d, \s, \w
+and their upper case partners, just as it does when they appear outside a
+character class, as described in the section entitled
+<a href="#genericchartypes">"Generic character types"</a>
+above. The escape sequence \b has a different meaning inside a character
+class; it matches the backspace character. The sequences \B, \N, \R, and \X
+are not special inside a character class. Like any other unrecognized escape
+sequences, they are treated as the literal characters "B", "N", "R", and "X" by
+default, but cause an error if the PCRE_EXTRA option is set.
+</P>
+<P>
+A circumflex can conveniently be used with the upper case character types to
+specify a more restricted set of characters than the matching lower case type.
+For example, the class [^\W_] matches any letter or digit, but not underscore,
+whereas [\w] includes underscore. A positive character class should be read as
+"something OR something OR ..." and a negative class as "NOT something AND NOT
+something AND NOT ...".
+</P>
+<P>
+The only metacharacters that are recognized in character classes are backslash,
+hyphen (only where it can be interpreted as specifying a range), circumflex
+(only at the start), opening square bracket (only when it can be interpreted as
+introducing a POSIX class name - see the next section), and the terminating
+closing square bracket. However, escaping other non-alphanumeric characters
+does no harm.
+</P>
+<br><a name="SEC9" href="#TOC1">POSIX CHARACTER CLASSES</a><br>
+<P>
+Perl supports the POSIX notation for character classes. This uses names
+enclosed by [: and :] within the enclosing square brackets. PCRE also supports
+this notation. For example,
+<pre>
+  [01[:alpha:]%]
+</pre>
+matches "0", "1", any alphabetic character, or "%". The supported class names
+are:
+<pre>
+  alnum    letters and digits
+  alpha    letters
+  ascii    character codes 0 - 127
+  blank    space or tab only
+  cntrl    control characters
+  digit    decimal digits (same as \d)
+  graph    printing characters, excluding space
+  lower    lower case letters
+  print    printing characters, including space
+  punct    printing characters, excluding letters and digits and space
+  space    white space (not quite the same as \s)
+  upper    upper case letters
+  word     "word" characters (same as \w)
+  xdigit   hexadecimal digits
+</pre>
+The "space" characters are HT (9), LF (10), VT (11), FF (12), CR (13), and
+space (32). Notice that this list includes the VT character (code 11). This
+makes "space" different to \s, which does not include VT (for Perl
+compatibility).
+</P>
+<P>
+The name "word" is a Perl extension, and "blank" is a GNU extension from Perl
+5.8. Another Perl extension is negation, which is indicated by a ^ character
+after the colon. For example,
+<pre>
+  [12[:^digit:]]
+</pre>
+matches "1", "2", or any non-digit. PCRE (and Perl) also recognize the POSIX
+syntax [.ch.] and [=ch=] where "ch" is a "collating element", but these are not
+supported, and an error is given if they are encountered.
+</P>
+<P>
+By default, in UTF modes, characters with values greater than 128 do not match
+any of the POSIX character classes. However, if the PCRE_UCP option is passed
+to <b>pcre_compile()</b>, some of the classes are changed so that Unicode
+character properties are used. This is achieved by replacing the POSIX classes
+by other sequences, as follows:
+<pre>
+  [:alnum:]  becomes  \p{Xan}
+  [:alpha:]  becomes  \p{L}
+  [:blank:]  becomes  \h
+  [:digit:]  becomes  \p{Nd}
+  [:lower:]  becomes  \p{Ll}
+  [:space:]  becomes  \p{Xps}
+  [:upper:]  becomes  \p{Lu}
+  [:word:]   becomes  \p{Xwd}
+</pre>
+Negated versions, such as [:^alpha:] use \P instead of \p. The other POSIX
+classes are unchanged, and match only characters with code points less than
+128.
+</P>
+<br><a name="SEC10" href="#TOC1">VERTICAL BAR</a><br>
+<P>
+Vertical bar characters are used to separate alternative patterns. For example,
+the pattern
+<pre>
+  gilbert|sullivan
+</pre>
+matches either "gilbert" or "sullivan". Any number of alternatives may appear,
+and an empty alternative is permitted (matching the empty string). The matching
+process tries each alternative in turn, from left to right, and the first one
+that succeeds is used. If the alternatives are within a subpattern
+<a href="#subpattern">(defined below),</a>
+"succeeds" means matching the rest of the main pattern as well as the
+alternative in the subpattern.
+</P>
+<br><a name="SEC11" href="#TOC1">INTERNAL OPTION SETTING</a><br>
+<P>
+The settings of the PCRE_CASELESS, PCRE_MULTILINE, PCRE_DOTALL, and
+PCRE_EXTENDED options (which are Perl-compatible) can be changed from within
+the pattern by a sequence of Perl option letters enclosed between "(?" and ")".
+The option letters are
+<pre>
+  i  for PCRE_CASELESS
+  m  for PCRE_MULTILINE
+  s  for PCRE_DOTALL
+  x  for PCRE_EXTENDED
+</pre>
+For example, (?im) sets caseless, multiline matching. It is also possible to
+unset these options by preceding the letter with a hyphen, and a combined
+setting and unsetting such as (?im-sx), which sets PCRE_CASELESS and
+PCRE_MULTILINE while unsetting PCRE_DOTALL and PCRE_EXTENDED, is also
+permitted. If a letter appears both before and after the hyphen, the option is
+unset.
+</P>
+<P>
+The PCRE-specific options PCRE_DUPNAMES, PCRE_UNGREEDY, and PCRE_EXTRA can be
+changed in the same way as the Perl-compatible options by using the characters
+J, U and X respectively.
+</P>
+<P>
+When one of these option changes occurs at top level (that is, not inside
+subpattern parentheses), the change applies to the remainder of the pattern
+that follows. If the change is placed right at the start of a pattern, PCRE
+extracts it into the global options (and it will therefore show up in data
+extracted by the <b>pcre_fullinfo()</b> function).
+</P>
+<P>
+An option change within a subpattern (see below for a description of
+subpatterns) affects only that part of the subpattern that follows it, so
+<pre>
+  (a(?i)b)c
+</pre>
+matches abc and aBc and no other strings (assuming PCRE_CASELESS is not used).
+By this means, options can be made to have different settings in different
+parts of the pattern. Any changes made in one alternative do carry on
+into subsequent branches within the same subpattern. For example,
+<pre>
+  (a(?i)b|c)
+</pre>
+matches "ab", "aB", "c", and "C", even though when matching "C" the first
+branch is abandoned before the option setting. This is because the effects of
+option settings happen at compile time. There would be some very weird
+behaviour otherwise.
+</P>
+<P>
+<b>Note:</b> There are other PCRE-specific options that can be set by the
+application when the compiling or matching functions are called. In some cases
+the pattern can contain special leading sequences such as (*CRLF) to override
+what the application has set or what has been defaulted. Details are given in
+the section entitled
+<a href="#newlineseq">"Newline sequences"</a>
+above. There are also the (*UTF8), (*UTF16), and (*UCP) leading sequences that
+can be used to set UTF and Unicode property modes; they are equivalent to
+setting the PCRE_UTF8, PCRE_UTF16, and the PCRE_UCP options, respectively.
+<a name="subpattern"></a></P>
+<br><a name="SEC12" href="#TOC1">SUBPATTERNS</a><br>
+<P>
+Subpatterns are delimited by parentheses (round brackets), which can be nested.
+Turning part of a pattern into a subpattern does two things:
+<br>
+<br>
+1. It localizes a set of alternatives. For example, the pattern
+<pre>
+  cat(aract|erpillar|)
+</pre>
+matches "cataract", "caterpillar", or "cat". Without the parentheses, it would
+match "cataract", "erpillar" or an empty string.
+<br>
+<br>
+2. It sets up the subpattern as a capturing subpattern. This means that, when
+the whole pattern matches, that portion of the subject string that matched the
+subpattern is passed back to the caller via the <i>ovector</i> argument of the
+matching function. (This applies only to the traditional matching functions;
+the DFA matching functions do not support capturing.)
+</P>
+<P>
+Opening parentheses are counted from left to right (starting from 1) to obtain
+numbers for the capturing subpatterns. For example, if the string "the red
+king" is matched against the pattern
+<pre>
+  the ((red|white) (king|queen))
+</pre>
+the captured substrings are "red king", "red", and "king", and are numbered 1,
+2, and 3, respectively.
+</P>
+<P>
+The fact that plain parentheses fulfil two functions is not always helpful.
+There are often times when a grouping subpattern is required without a
+capturing requirement. If an opening parenthesis is followed by a question mark
+and a colon, the subpattern does not do any capturing, and is not counted when
+computing the number of any subsequent capturing subpatterns. For example, if
+the string "the white queen" is matched against the pattern
+<pre>
+  the ((?:red|white) (king|queen))
+</pre>
+the captured substrings are "white queen" and "queen", and are numbered 1 and
+2. The maximum number of capturing subpatterns is 65535.
+</P>
+<P>
+As a convenient shorthand, if any option settings are required at the start of
+a non-capturing subpattern, the option letters may appear between the "?" and
+the ":". Thus the two patterns
+<pre>
+  (?i:saturday|sunday)
+  (?:(?i)saturday|sunday)
+</pre>
+match exactly the same set of strings. Because alternative branches are tried
+from left to right, and options are not reset until the end of the subpattern
+is reached, an option setting in one branch does affect subsequent branches, so
+the above patterns match "SUNDAY" as well as "Saturday".
+<a name="dupsubpatternnumber"></a></P>
+<br><a name="SEC13" href="#TOC1">DUPLICATE SUBPATTERN NUMBERS</a><br>
+<P>
+Perl 5.10 introduced a feature whereby each alternative in a subpattern uses
+the same numbers for its capturing parentheses. Such a subpattern starts with
+(?| and is itself a non-capturing subpattern. For example, consider this
+pattern:
+<pre>
+  (?|(Sat)ur|(Sun))day
+</pre>
+Because the two alternatives are inside a (?| group, both sets of capturing
+parentheses are numbered one. Thus, when the pattern matches, you can look
+at captured substring number one, whichever alternative matched. This construct
+is useful when you want to capture part, but not all, of one of a number of
+alternatives. Inside a (?| group, parentheses are numbered as usual, but the
+number is reset at the start of each branch. The numbers of any capturing
+parentheses that follow the subpattern start after the highest number used in
+any branch. The following example is taken from the Perl documentation. The
+numbers underneath show in which buffer the captured content will be stored.
+<pre>
+  # before  ---------------branch-reset----------- after
+  / ( a )  (?| x ( y ) z | (p (q) r) | (t) u (v) ) ( z ) /x
+  # 1            2         2  3        2     3     4
+</pre>
+A back reference to a numbered subpattern uses the most recent value that is
+set for that number by any subpattern. The following pattern matches "abcabc"
+or "defdef":
+<pre>
+  /(?|(abc)|(def))\1/
+</pre>
+In contrast, a subroutine call to a numbered subpattern always refers to the
+first one in the pattern with the given number. The following pattern matches
+"abcabc" or "defabc":
+<pre>
+  /(?|(abc)|(def))(?1)/
+</pre>
+If a
+<a href="#conditions">condition test</a>
+for a subpattern's having matched refers to a non-unique number, the test is
+true if any of the subpatterns of that number have matched.
+</P>
+<P>
+An alternative approach to using this "branch reset" feature is to use
+duplicate named subpatterns, as described in the next section.
+</P>
+<br><a name="SEC14" href="#TOC1">NAMED SUBPATTERNS</a><br>
+<P>
+Identifying capturing parentheses by number is simple, but it can be very hard
+to keep track of the numbers in complicated regular expressions. Furthermore,
+if an expression is modified, the numbers may change. To help with this
+difficulty, PCRE supports the naming of subpatterns. This feature was not
+added to Perl until release 5.10. Python had the feature earlier, and PCRE
+introduced it at release 4.0, using the Python syntax. PCRE now supports both
+the Perl and the Python syntax. Perl allows identically numbered subpatterns to
+have different names, but PCRE does not.
+</P>
+<P>
+In PCRE, a subpattern can be named in one of three ways: (?&#60;name&#62;...) or
+(?'name'...) as in Perl, or (?P&#60;name&#62;...) as in Python. References to capturing
+parentheses from other parts of the pattern, such as
+<a href="#backreferences">back references,</a>
+<a href="#recursion">recursion,</a>
+and
+<a href="#conditions">conditions,</a>
+can be made by name as well as by number.
+</P>
+<P>
+Names consist of up to 32 alphanumeric characters and underscores. Named
+capturing parentheses are still allocated numbers as well as names, exactly as
+if the names were not present. The PCRE API provides function calls for
+extracting the name-to-number translation table from a compiled pattern. There
+is also a convenience function for extracting a captured substring by name.
+</P>
+<P>
+By default, a name must be unique within a pattern, but it is possible to relax
+this constraint by setting the PCRE_DUPNAMES option at compile time. (Duplicate
+names are also always permitted for subpatterns with the same number, set up as
+described in the previous section.) Duplicate names can be useful for patterns
+where only one instance of the named parentheses can match. Suppose you want to
+match the name of a weekday, either as a 3-letter abbreviation or as the full
+name, and in both cases you want to extract the abbreviation. This pattern
+(ignoring the line breaks) does the job:
+<pre>
+  (?&#60;DN&#62;Mon|Fri|Sun)(?:day)?|
+  (?&#60;DN&#62;Tue)(?:sday)?|
+  (?&#60;DN&#62;Wed)(?:nesday)?|
+  (?&#60;DN&#62;Thu)(?:rsday)?|
+  (?&#60;DN&#62;Sat)(?:urday)?
+</pre>
+There are five capturing substrings, but only one is ever set after a match.
+(An alternative way of solving this problem is to use a "branch reset"
+subpattern, as described in the previous section.)
+</P>
+<P>
+The convenience function for extracting the data by name returns the substring
+for the first (and in this example, the only) subpattern of that name that
+matched. This saves searching to find which numbered subpattern it was.
+</P>
+<P>
+If you make a back reference to a non-unique named subpattern from elsewhere in
+the pattern, the one that corresponds to the first occurrence of the name is
+used. In the absence of duplicate numbers (see the previous section) this is
+the one with the lowest number. If you use a named reference in a condition
+test (see the
+<a href="#conditions">section about conditions</a>
+below), either to check whether a subpattern has matched, or to check for
+recursion, all subpatterns with the same name are tested. If the condition is
+true for any one of them, the overall condition is true. This is the same
+behaviour as testing by number. For further details of the interfaces for
+handling named subpatterns, see the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation.
+</P>
+<P>
+<b>Warning:</b> You cannot use different names to distinguish between two
+subpatterns with the same number because PCRE uses only the numbers when
+matching. For this reason, an error is given at compile time if different names
+are given to subpatterns with the same number. However, you can give the same
+name to subpatterns with the same number, even when PCRE_DUPNAMES is not set.
+</P>
+<br><a name="SEC15" href="#TOC1">REPETITION</a><br>
+<P>
+Repetition is specified by quantifiers, which can follow any of the following
+items:
+<pre>
+  a literal data character
+  the dot metacharacter
+  the \C escape sequence
+  the \X escape sequence
+  the \R escape sequence
+  an escape such as \d or \pL that matches a single character
+  a character class
+  a back reference (see next section)
+  a parenthesized subpattern (including assertions)
+  a subroutine call to a subpattern (recursive or otherwise)
+</pre>
+The general repetition quantifier specifies a minimum and maximum number of
+permitted matches, by giving the two numbers in curly brackets (braces),
+separated by a comma. The numbers must be less than 65536, and the first must
+be less than or equal to the second. For example:
+<pre>
+  z{2,4}
+</pre>
+matches "zz", "zzz", or "zzzz". A closing brace on its own is not a special
+character. If the second number is omitted, but the comma is present, there is
+no upper limit; if the second number and the comma are both omitted, the
+quantifier specifies an exact number of required matches. Thus
+<pre>
+  [aeiou]{3,}
+</pre>
+matches at least 3 successive vowels, but may match many more, while
+<pre>
+  \d{8}
+</pre>
+matches exactly 8 digits. An opening curly bracket that appears in a position
+where a quantifier is not allowed, or one that does not match the syntax of a
+quantifier, is taken as a literal character. For example, {,6} is not a
+quantifier, but a literal string of four characters.
+</P>
+<P>
+In UTF modes, quantifiers apply to characters rather than to individual data
+units. Thus, for example, \x{100}{2} matches two characters, each of
+which is represented by a two-byte sequence in a UTF-8 string. Similarly,
+\X{3} matches three Unicode extended sequences, each of which may be several
+data units long (and they may be of different lengths).
+</P>
+<P>
+The quantifier {0} is permitted, causing the expression to behave as if the
+previous item and the quantifier were not present. This may be useful for
+subpatterns that are referenced as
+<a href="#subpatternsassubroutines">subroutines</a>
+from elsewhere in the pattern (but see also the section entitled
+<a href="#subdefine">"Defining subpatterns for use by reference only"</a>
+below). Items other than subpatterns that have a {0} quantifier are omitted
+from the compiled pattern.
+</P>
+<P>
+For convenience, the three most common quantifiers have single-character
+abbreviations:
+<pre>
+  *    is equivalent to {0,}
+  +    is equivalent to {1,}
+  ?    is equivalent to {0,1}
+</pre>
+It is possible to construct infinite loops by following a subpattern that can
+match no characters with a quantifier that has no upper limit, for example:
+<pre>
+  (a?)*
+</pre>
+Earlier versions of Perl and PCRE used to give an error at compile time for
+such patterns. However, because there are cases where this can be useful, such
+patterns are now accepted, but if any repetition of the subpattern does in fact
+match no characters, the loop is forcibly broken.
+</P>
+<P>
+By default, the quantifiers are "greedy", that is, they match as much as
+possible (up to the maximum number of permitted times), without causing the
+rest of the pattern to fail. The classic example of where this gives problems
+is in trying to match comments in C programs. These appear between /* and */
+and within the comment, individual * and / characters may appear. An attempt to
+match C comments by applying the pattern
+<pre>
+  /\*.*\*/
+</pre>
+to the string
+<pre>
+  /* first comment */  not comment  /* second comment */
+</pre>
+fails, because it matches the entire string owing to the greediness of the .*
+item.
+</P>
+<P>
+However, if a quantifier is followed by a question mark, it ceases to be
+greedy, and instead matches the minimum number of times possible, so the
+pattern
+<pre>
+  /\*.*?\*/
+</pre>
+does the right thing with the C comments. The meaning of the various
+quantifiers is not otherwise changed, just the preferred number of matches.
+Do not confuse this use of question mark with its use as a quantifier in its
+own right. Because it has two uses, it can sometimes appear doubled, as in
+<pre>
+  \d??\d
+</pre>
+which matches one digit by preference, but can match two if that is the only
+way the rest of the pattern matches.
+</P>
+<P>
+If the PCRE_UNGREEDY option is set (an option that is not available in Perl),
+the quantifiers are not greedy by default, but individual ones can be made
+greedy by following them with a question mark. In other words, it inverts the
+default behaviour.
+</P>
+<P>
+When a parenthesized subpattern is quantified with a minimum repeat count that
+is greater than 1 or with a limited maximum, more memory is required for the
+compiled pattern, in proportion to the size of the minimum or maximum.
+</P>
+<P>
+If a pattern starts with .* or .{0,} and the PCRE_DOTALL option (equivalent
+to Perl's /s) is set, thus allowing the dot to match newlines, the pattern is
+implicitly anchored, because whatever follows will be tried against every
+character position in the subject string, so there is no point in retrying the
+overall match at any position after the first. PCRE normally treats such a
+pattern as though it were preceded by \A.
+</P>
+<P>
+In cases where it is known that the subject string contains no newlines, it is
+worth setting PCRE_DOTALL in order to obtain this optimization, or
+alternatively using ^ to indicate anchoring explicitly.
+</P>
+<P>
+However, there is one situation where the optimization cannot be used. When .*
+is inside capturing parentheses that are the subject of a back reference
+elsewhere in the pattern, a match at the start may fail where a later one
+succeeds. Consider, for example:
+<pre>
+  (.*)abc\1
+</pre>
+If the subject is "xyz123abc123" the match point is the fourth character. For
+this reason, such a pattern is not implicitly anchored.
+</P>
+<P>
+When a capturing subpattern is repeated, the value captured is the substring
+that matched the final iteration. For example, after
+<pre>
+  (tweedle[dume]{3}\s*)+
+</pre>
+has matched "tweedledum tweedledee" the value of the captured substring is
+"tweedledee". However, if there are nested capturing subpatterns, the
+corresponding captured values may have been set in previous iterations. For
+example, after
+<pre>
+  /(a|(b))+/
+</pre>
+matches "aba" the value of the second captured substring is "b".
+<a name="atomicgroup"></a></P>
+<br><a name="SEC16" href="#TOC1">ATOMIC GROUPING AND POSSESSIVE QUANTIFIERS</a><br>
+<P>
+With both maximizing ("greedy") and minimizing ("ungreedy" or "lazy")
+repetition, failure of what follows normally causes the repeated item to be
+re-evaluated to see if a different number of repeats allows the rest of the
+pattern to match. Sometimes it is useful to prevent this, either to change the
+nature of the match, or to cause it fail earlier than it otherwise might, when
+the author of the pattern knows there is no point in carrying on.
+</P>
+<P>
+Consider, for example, the pattern \d+foo when applied to the subject line
+<pre>
+  123456bar
+</pre>
+After matching all 6 digits and then failing to match "foo", the normal
+action of the matcher is to try again with only 5 digits matching the \d+
+item, and then with 4, and so on, before ultimately failing. "Atomic grouping"
+(a term taken from Jeffrey Friedl's book) provides the means for specifying
+that once a subpattern has matched, it is not to be re-evaluated in this way.
+</P>
+<P>
+If we use atomic grouping for the previous example, the matcher gives up
+immediately on failing to match "foo" the first time. The notation is a kind of
+special parenthesis, starting with (?&#62; as in this example:
+<pre>
+  (?&#62;\d+)foo
+</pre>
+This kind of parenthesis "locks up" the  part of the pattern it contains once
+it has matched, and a failure further into the pattern is prevented from
+backtracking into it. Backtracking past it to previous items, however, works as
+normal.
+</P>
+<P>
+An alternative description is that a subpattern of this type matches the string
+of characters that an identical standalone pattern would match, if anchored at
+the current point in the subject string.
+</P>
+<P>
+Atomic grouping subpatterns are not capturing subpatterns. Simple cases such as
+the above example can be thought of as a maximizing repeat that must swallow
+everything it can. So, while both \d+ and \d+? are prepared to adjust the
+number of digits they match in order to make the rest of the pattern match,
+(?&#62;\d+) can only match an entire sequence of digits.
+</P>
+<P>
+Atomic groups in general can of course contain arbitrarily complicated
+subpatterns, and can be nested. However, when the subpattern for an atomic
+group is just a single repeated item, as in the example above, a simpler
+notation, called a "possessive quantifier" can be used. This consists of an
+additional + character following a quantifier. Using this notation, the
+previous example can be rewritten as
+<pre>
+  \d++foo
+</pre>
+Note that a possessive quantifier can be used with an entire group, for
+example:
+<pre>
+  (abc|xyz){2,3}+
+</pre>
+Possessive quantifiers are always greedy; the setting of the PCRE_UNGREEDY
+option is ignored. They are a convenient notation for the simpler forms of
+atomic group. However, there is no difference in the meaning of a possessive
+quantifier and the equivalent atomic group, though there may be a performance
+difference; possessive quantifiers should be slightly faster.
+</P>
+<P>
+The possessive quantifier syntax is an extension to the Perl 5.8 syntax.
+Jeffrey Friedl originated the idea (and the name) in the first edition of his
+book. Mike McCloskey liked it, so implemented it when he built Sun's Java
+package, and PCRE copied it from there. It ultimately found its way into Perl
+at release 5.10.
+</P>
+<P>
+PCRE has an optimization that automatically "possessifies" certain simple
+pattern constructs. For example, the sequence A+B is treated as A++B because
+there is no point in backtracking into a sequence of A's when B must follow.
+</P>
+<P>
+When a pattern contains an unlimited repeat inside a subpattern that can itself
+be repeated an unlimited number of times, the use of an atomic group is the
+only way to avoid some failing matches taking a very long time indeed. The
+pattern
+<pre>
+  (\D+|&#60;\d+&#62;)*[!?]
+</pre>
+matches an unlimited number of substrings that either consist of non-digits, or
+digits enclosed in &#60;&#62;, followed by either ! or ?. When it matches, it runs
+quickly. However, if it is applied to
+<pre>
+  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+</pre>
+it takes a long time before reporting failure. This is because the string can
+be divided between the internal \D+ repeat and the external * repeat in a
+large number of ways, and all have to be tried. (The example uses [!?] rather
+than a single character at the end, because both PCRE and Perl have an
+optimization that allows for fast failure when a single character is used. They
+remember the last single character that is required for a match, and fail early
+if it is not present in the string.) If the pattern is changed so that it uses
+an atomic group, like this:
+<pre>
+  ((?&#62;\D+)|&#60;\d+&#62;)*[!?]
+</pre>
+sequences of non-digits cannot be broken, and failure happens quickly.
+<a name="backreferences"></a></P>
+<br><a name="SEC17" href="#TOC1">BACK REFERENCES</a><br>
+<P>
+Outside a character class, a backslash followed by a digit greater than 0 (and
+possibly further digits) is a back reference to a capturing subpattern earlier
+(that is, to its left) in the pattern, provided there have been that many
+previous capturing left parentheses.
+</P>
+<P>
+However, if the decimal number following the backslash is less than 10, it is
+always taken as a back reference, and causes an error only if there are not
+that many capturing left parentheses in the entire pattern. In other words, the
+parentheses that are referenced need not be to the left of the reference for
+numbers less than 10. A "forward back reference" of this type can make sense
+when a repetition is involved and the subpattern to the right has participated
+in an earlier iteration.
+</P>
+<P>
+It is not possible to have a numerical "forward back reference" to a subpattern
+whose number is 10 or more using this syntax because a sequence such as \50 is
+interpreted as a character defined in octal. See the subsection entitled
+"Non-printing characters"
+<a href="#digitsafterbackslash">above</a>
+for further details of the handling of digits following a backslash. There is
+no such problem when named parentheses are used. A back reference to any
+subpattern is possible using named parentheses (see below).
+</P>
+<P>
+Another way of avoiding the ambiguity inherent in the use of digits following a
+backslash is to use the \g escape sequence. This escape must be followed by an
+unsigned number or a negative number, optionally enclosed in braces. These
+examples are all identical:
+<pre>
+  (ring), \1
+  (ring), \g1
+  (ring), \g{1}
+</pre>
+An unsigned number specifies an absolute reference without the ambiguity that
+is present in the older syntax. It is also useful when literal digits follow
+the reference. A negative number is a relative reference. Consider this
+example:
+<pre>
+  (abc(def)ghi)\g{-1}
+</pre>
+The sequence \g{-1} is a reference to the most recently started capturing
+subpattern before \g, that is, is it equivalent to \2 in this example.
+Similarly, \g{-2} would be equivalent to \1. The use of relative references
+can be helpful in long patterns, and also in patterns that are created by
+joining together fragments that contain references within themselves.
+</P>
+<P>
+A back reference matches whatever actually matched the capturing subpattern in
+the current subject string, rather than anything matching the subpattern
+itself (see
+<a href="#subpatternsassubroutines">"Subpatterns as subroutines"</a>
+below for a way of doing that). So the pattern
+<pre>
+  (sens|respons)e and \1ibility
+</pre>
+matches "sense and sensibility" and "response and responsibility", but not
+"sense and responsibility". If caseful matching is in force at the time of the
+back reference, the case of letters is relevant. For example,
+<pre>
+  ((?i)rah)\s+\1
+</pre>
+matches "rah rah" and "RAH RAH", but not "RAH rah", even though the original
+capturing subpattern is matched caselessly.
+</P>
+<P>
+There are several different ways of writing back references to named
+subpatterns. The .NET syntax \k{name} and the Perl syntax \k&#60;name&#62; or
+\k'name' are supported, as is the Python syntax (?P=name). Perl 5.10's unified
+back reference syntax, in which \g can be used for both numeric and named
+references, is also supported. We could rewrite the above example in any of
+the following ways:
+<pre>
+  (?&#60;p1&#62;(?i)rah)\s+\k&#60;p1&#62;
+  (?'p1'(?i)rah)\s+\k{p1}
+  (?P&#60;p1&#62;(?i)rah)\s+(?P=p1)
+  (?&#60;p1&#62;(?i)rah)\s+\g{p1}
+</pre>
+A subpattern that is referenced by name may appear in the pattern before or
+after the reference.
+</P>
+<P>
+There may be more than one back reference to the same subpattern. If a
+subpattern has not actually been used in a particular match, any back
+references to it always fail by default. For example, the pattern
+<pre>
+  (a|(bc))\2
+</pre>
+always fails if it starts to match "a" rather than "bc". However, if the
+PCRE_JAVASCRIPT_COMPAT option is set at compile time, a back reference to an
+unset value matches an empty string.
+</P>
+<P>
+Because there may be many capturing parentheses in a pattern, all digits
+following a backslash are taken as part of a potential back reference number.
+If the pattern continues with a digit character, some delimiter must be used to
+terminate the back reference. If the PCRE_EXTENDED option is set, this can be
+white space. Otherwise, the \g{ syntax or an empty comment (see
+<a href="#comments">"Comments"</a>
+below) can be used.
+</P>
+<br><b>
+Recursive back references
+</b><br>
+<P>
+A back reference that occurs inside the parentheses to which it refers fails
+when the subpattern is first used, so, for example, (a\1) never matches.
+However, such references can be useful inside repeated subpatterns. For
+example, the pattern
+<pre>
+  (a|b\1)+
+</pre>
+matches any number of "a"s and also "aba", "ababbaa" etc. At each iteration of
+the subpattern, the back reference matches the character string corresponding
+to the previous iteration. In order for this to work, the pattern must be such
+that the first iteration does not need to match the back reference. This can be
+done using alternation, as in the example above, or by a quantifier with a
+minimum of zero.
+</P>
+<P>
+Back references of this type cause the group that they reference to be treated
+as an
+<a href="#atomicgroup">atomic group.</a>
+Once the whole group has been matched, a subsequent matching failure cannot
+cause backtracking into the middle of the group.
+<a name="bigassertions"></a></P>
+<br><a name="SEC18" href="#TOC1">ASSERTIONS</a><br>
+<P>
+An assertion is a test on the characters following or preceding the current
+matching point that does not actually consume any characters. The simple
+assertions coded as \b, \B, \A, \G, \Z, \z, ^ and $ are described
+<a href="#smallassertions">above.</a>
+</P>
+<P>
+More complicated assertions are coded as subpatterns. There are two kinds:
+those that look ahead of the current position in the subject string, and those
+that look behind it. An assertion subpattern is matched in the normal way,
+except that it does not cause the current matching position to be changed.
+</P>
+<P>
+Assertion subpatterns are not capturing subpatterns. If such an assertion
+contains capturing subpatterns within it, these are counted for the purposes of
+numbering the capturing subpatterns in the whole pattern. However, substring
+capturing is carried out only for positive assertions, because it does not make
+sense for negative assertions.
+</P>
+<P>
+For compatibility with Perl, assertion subpatterns may be repeated; though
+it makes no sense to assert the same thing several times, the side effect of
+capturing parentheses may occasionally be useful. In practice, there only three
+cases:
+<br>
+<br>
+(1) If the quantifier is {0}, the assertion is never obeyed during matching.
+However, it may contain internal capturing parenthesized groups that are called
+from elsewhere via the
+<a href="#subpatternsassubroutines">subroutine mechanism.</a>
+<br>
+<br>
+(2) If quantifier is {0,n} where n is greater than zero, it is treated as if it
+were {0,1}. At run time, the rest of the pattern match is tried with and
+without the assertion, the order depending on the greediness of the quantifier.
+<br>
+<br>
+(3) If the minimum repetition is greater than zero, the quantifier is ignored.
+The assertion is obeyed just once when encountered during matching.
+</P>
+<br><b>
+Lookahead assertions
+</b><br>
+<P>
+Lookahead assertions start with (?= for positive assertions and (?! for
+negative assertions. For example,
+<pre>
+  \w+(?=;)
+</pre>
+matches a word followed by a semicolon, but does not include the semicolon in
+the match, and
+<pre>
+  foo(?!bar)
+</pre>
+matches any occurrence of "foo" that is not followed by "bar". Note that the
+apparently similar pattern
+<pre>
+  (?!foo)bar
+</pre>
+does not find an occurrence of "bar" that is preceded by something other than
+"foo"; it finds any occurrence of "bar" whatsoever, because the assertion
+(?!foo) is always true when the next three characters are "bar". A
+lookbehind assertion is needed to achieve the other effect.
+</P>
+<P>
+If you want to force a matching failure at some point in a pattern, the most
+convenient way to do it is with (?!) because an empty string always matches, so
+an assertion that requires there not to be an empty string must always fail.
+The backtracking control verb (*FAIL) or (*F) is a synonym for (?!).
+<a name="lookbehind"></a></P>
+<br><b>
+Lookbehind assertions
+</b><br>
+<P>
+Lookbehind assertions start with (?&#60;= for positive assertions and (?&#60;! for
+negative assertions. For example,
+<pre>
+  (?&#60;!foo)bar
+</pre>
+does find an occurrence of "bar" that is not preceded by "foo". The contents of
+a lookbehind assertion are restricted such that all the strings it matches must
+have a fixed length. However, if there are several top-level alternatives, they
+do not all have to have the same fixed length. Thus
+<pre>
+  (?&#60;=bullock|donkey)
+</pre>
+is permitted, but
+<pre>
+  (?&#60;!dogs?|cats?)
+</pre>
+causes an error at compile time. Branches that match different length strings
+are permitted only at the top level of a lookbehind assertion. This is an
+extension compared with Perl, which requires all branches to match the same
+length of string. An assertion such as
+<pre>
+  (?&#60;=ab(c|de))
+</pre>
+is not permitted, because its single top-level branch can match two different
+lengths, but it is acceptable to PCRE if rewritten to use two top-level
+branches:
+<pre>
+  (?&#60;=abc|abde)
+</pre>
+In some cases, the escape sequence \K
+<a href="#resetmatchstart">(see above)</a>
+can be used instead of a lookbehind assertion to get round the fixed-length
+restriction.
+</P>
+<P>
+The implementation of lookbehind assertions is, for each alternative, to
+temporarily move the current position back by the fixed length and then try to
+match. If there are insufficient characters before the current position, the
+assertion fails.
+</P>
+<P>
+In a UTF mode, PCRE does not allow the \C escape (which matches a single data
+unit even in a UTF mode) to appear in lookbehind assertions, because it makes
+it impossible to calculate the length of the lookbehind. The \X and \R
+escapes, which can match different numbers of data units, are also not
+permitted.
+</P>
+<P>
+<a href="#subpatternsassubroutines">"Subroutine"</a>
+calls (see below) such as (?2) or (?&X) are permitted in lookbehinds, as long
+as the subpattern matches a fixed-length string.
+<a href="#recursion">Recursion,</a>
+however, is not supported.
+</P>
+<P>
+Possessive quantifiers can be used in conjunction with lookbehind assertions to
+specify efficient matching of fixed-length strings at the end of subject
+strings. Consider a simple pattern such as
+<pre>
+  abcd$
+</pre>
+when applied to a long string that does not match. Because matching proceeds
+from left to right, PCRE will look for each "a" in the subject and then see if
+what follows matches the rest of the pattern. If the pattern is specified as
+<pre>
+  ^.*abcd$
+</pre>
+the initial .* matches the entire string at first, but when this fails (because
+there is no following "a"), it backtracks to match all but the last character,
+then all but the last two characters, and so on. Once again the search for "a"
+covers the entire string, from right to left, so we are no better off. However,
+if the pattern is written as
+<pre>
+  ^.*+(?&#60;=abcd)
+</pre>
+there can be no backtracking for the .*+ item; it can match only the entire
+string. The subsequent lookbehind assertion does a single test on the last four
+characters. If it fails, the match fails immediately. For long strings, this
+approach makes a significant difference to the processing time.
+</P>
+<br><b>
+Using multiple assertions
+</b><br>
+<P>
+Several assertions (of any sort) may occur in succession. For example,
+<pre>
+  (?&#60;=\d{3})(?&#60;!999)foo
+</pre>
+matches "foo" preceded by three digits that are not "999". Notice that each of
+the assertions is applied independently at the same point in the subject
+string. First there is a check that the previous three characters are all
+digits, and then there is a check that the same three characters are not "999".
+This pattern does <i>not</i> match "foo" preceded by six characters, the first
+of which are digits and the last three of which are not "999". For example, it
+doesn't match "123abcfoo". A pattern to do that is
+<pre>
+  (?&#60;=\d{3}...)(?&#60;!999)foo
+</pre>
+This time the first assertion looks at the preceding six characters, checking
+that the first three are digits, and then the second assertion checks that the
+preceding three characters are not "999".
+</P>
+<P>
+Assertions can be nested in any combination. For example,
+<pre>
+  (?&#60;=(?&#60;!foo)bar)baz
+</pre>
+matches an occurrence of "baz" that is preceded by "bar" which in turn is not
+preceded by "foo", while
+<pre>
+  (?&#60;=\d{3}(?!999)...)foo
+</pre>
+is another pattern that matches "foo" preceded by three digits and any three
+characters that are not "999".
+<a name="conditions"></a></P>
+<br><a name="SEC19" href="#TOC1">CONDITIONAL SUBPATTERNS</a><br>
+<P>
+It is possible to cause the matching process to obey a subpattern
+conditionally or to choose between two alternative subpatterns, depending on
+the result of an assertion, or whether a specific capturing subpattern has
+already been matched. The two possible forms of conditional subpattern are:
+<pre>
+  (?(condition)yes-pattern)
+  (?(condition)yes-pattern|no-pattern)
+</pre>
+If the condition is satisfied, the yes-pattern is used; otherwise the
+no-pattern (if present) is used. If there are more than two alternatives in the
+subpattern, a compile-time error occurs. Each of the two alternatives may
+itself contain nested subpatterns of any form, including conditional
+subpatterns; the restriction to two alternatives applies only at the level of
+the condition. This pattern fragment is an example where the alternatives are
+complex:
+<pre>
+  (?(1) (A|B|C) | (D | (?(2)E|F) | E) )
+
+</PRE>
+</P>
+<P>
+There are four kinds of condition: references to subpatterns, references to
+recursion, a pseudo-condition called DEFINE, and assertions.
+</P>
+<br><b>
+Checking for a used subpattern by number
+</b><br>
+<P>
+If the text between the parentheses consists of a sequence of digits, the
+condition is true if a capturing subpattern of that number has previously
+matched. If there is more than one capturing subpattern with the same number
+(see the earlier
+<a href="#recursion">section about duplicate subpattern numbers),</a>
+the condition is true if any of them have matched. An alternative notation is
+to precede the digits with a plus or minus sign. In this case, the subpattern
+number is relative rather than absolute. The most recently opened parentheses
+can be referenced by (?(-1), the next most recent by (?(-2), and so on. Inside
+loops it can also make sense to refer to subsequent groups. The next
+parentheses to be opened can be referenced as (?(+1), and so on. (The value
+zero in any of these forms is not used; it provokes a compile-time error.)
+</P>
+<P>
+Consider the following pattern, which contains non-significant white space to
+make it more readable (assume the PCRE_EXTENDED option) and to divide it into
+three parts for ease of discussion:
+<pre>
+  ( \( )?    [^()]+    (?(1) \) )
+</pre>
+The first part matches an optional opening parenthesis, and if that
+character is present, sets it as the first captured substring. The second part
+matches one or more characters that are not parentheses. The third part is a
+conditional subpattern that tests whether or not the first set of parentheses
+matched. If they did, that is, if subject started with an opening parenthesis,
+the condition is true, and so the yes-pattern is executed and a closing
+parenthesis is required. Otherwise, since no-pattern is not present, the
+subpattern matches nothing. In other words, this pattern matches a sequence of
+non-parentheses, optionally enclosed in parentheses.
+</P>
+<P>
+If you were embedding this pattern in a larger one, you could use a relative
+reference:
+<pre>
+  ...other stuff... ( \( )?    [^()]+    (?(-1) \) ) ...
+</pre>
+This makes the fragment independent of the parentheses in the larger pattern.
+</P>
+<br><b>
+Checking for a used subpattern by name
+</b><br>
+<P>
+Perl uses the syntax (?(&#60;name&#62;)...) or (?('name')...) to test for a used
+subpattern by name. For compatibility with earlier versions of PCRE, which had
+this facility before Perl, the syntax (?(name)...) is also recognized. However,
+there is a possible ambiguity with this syntax, because subpattern names may
+consist entirely of digits. PCRE looks first for a named subpattern; if it
+cannot find one and the name consists entirely of digits, PCRE looks for a
+subpattern of that number, which must be greater than zero. Using subpattern
+names that consist entirely of digits is not recommended.
+</P>
+<P>
+Rewriting the above example to use a named subpattern gives this:
+<pre>
+  (?&#60;OPEN&#62; \( )?    [^()]+    (?(&#60;OPEN&#62;) \) )
+</pre>
+If the name used in a condition of this kind is a duplicate, the test is
+applied to all subpatterns of the same name, and is true if any one of them has
+matched.
+</P>
+<br><b>
+Checking for pattern recursion
+</b><br>
+<P>
+If the condition is the string (R), and there is no subpattern with the name R,
+the condition is true if a recursive call to the whole pattern or any
+subpattern has been made. If digits or a name preceded by ampersand follow the
+letter R, for example:
+<pre>
+  (?(R3)...) or (?(R&name)...)
+</pre>
+the condition is true if the most recent recursion is into a subpattern whose
+number or name is given. This condition does not check the entire recursion
+stack. If the name used in a condition of this kind is a duplicate, the test is
+applied to all subpatterns of the same name, and is true if any one of them is
+the most recent recursion.
+</P>
+<P>
+At "top level", all these recursion test conditions are false.
+<a href="#recursion">The syntax for recursive patterns</a>
+is described below.
+<a name="subdefine"></a></P>
+<br><b>
+Defining subpatterns for use by reference only
+</b><br>
+<P>
+If the condition is the string (DEFINE), and there is no subpattern with the
+name DEFINE, the condition is always false. In this case, there may be only one
+alternative in the subpattern. It is always skipped if control reaches this
+point in the pattern; the idea of DEFINE is that it can be used to define
+subroutines that can be referenced from elsewhere. (The use of
+<a href="#subpatternsassubroutines">subroutines</a>
+is described below.) For example, a pattern to match an IPv4 address such as
+"192.168.23.245" could be written like this (ignore white space and line
+breaks):
+<pre>
+  (?(DEFINE) (?&#60;byte&#62; 2[0-4]\d | 25[0-5] | 1\d\d | [1-9]?\d) )
+  \b (?&byte) (\.(?&byte)){3} \b
+</pre>
+The first part of the pattern is a DEFINE group inside which a another group
+named "byte" is defined. This matches an individual component of an IPv4
+address (a number less than 256). When matching takes place, this part of the
+pattern is skipped because DEFINE acts like a false condition. The rest of the
+pattern uses references to the named group to match the four dot-separated
+components of an IPv4 address, insisting on a word boundary at each end.
+</P>
+<br><b>
+Assertion conditions
+</b><br>
+<P>
+If the condition is not in any of the above formats, it must be an assertion.
+This may be a positive or negative lookahead or lookbehind assertion. Consider
+this pattern, again containing non-significant white space, and with the two
+alternatives on the second line:
+<pre>
+  (?(?=[^a-z]*[a-z])
+  \d{2}-[a-z]{3}-\d{2}  |  \d{2}-\d{2}-\d{2} )
+</pre>
+The condition is a positive lookahead assertion that matches an optional
+sequence of non-letters followed by a letter. In other words, it tests for the
+presence of at least one letter in the subject. If a letter is found, the
+subject is matched against the first alternative; otherwise it is matched
+against the second. This pattern matches strings in one of the two forms
+dd-aaa-dd or dd-dd-dd, where aaa are letters and dd are digits.
+<a name="comments"></a></P>
+<br><a name="SEC20" href="#TOC1">COMMENTS</a><br>
+<P>
+There are two ways of including comments in patterns that are processed by
+PCRE. In both cases, the start of the comment must not be in a character class,
+nor in the middle of any other sequence of related characters such as (?: or a
+subpattern name or number. The characters that make up a comment play no part
+in the pattern matching.
+</P>
+<P>
+The sequence (?# marks the start of a comment that continues up to the next
+closing parenthesis. Nested parentheses are not permitted. If the PCRE_EXTENDED
+option is set, an unescaped # character also introduces a comment, which in
+this case continues to immediately after the next newline character or
+character sequence in the pattern. Which characters are interpreted as newlines
+is controlled by the options passed to a compiling function or by a special
+sequence at the start of the pattern, as described in the section entitled
+<a href="#newlines">"Newline conventions"</a>
+above. Note that the end of this type of comment is a literal newline sequence
+in the pattern; escape sequences that happen to represent a newline do not
+count. For example, consider this pattern when PCRE_EXTENDED is set, and the
+default newline convention is in force:
+<pre>
+  abc #comment \n still comment
+</pre>
+On encountering the # character, <b>pcre_compile()</b> skips along, looking for
+a newline in the pattern. The sequence \n is still literal at this stage, so
+it does not terminate the comment. Only an actual character with the code value
+0x0a (the default newline) does so.
+<a name="recursion"></a></P>
+<br><a name="SEC21" href="#TOC1">RECURSIVE PATTERNS</a><br>
+<P>
+Consider the problem of matching a string in parentheses, allowing for
+unlimited nested parentheses. Without the use of recursion, the best that can
+be done is to use a pattern that matches up to some fixed depth of nesting. It
+is not possible to handle an arbitrary nesting depth.
+</P>
+<P>
+For some time, Perl has provided a facility that allows regular expressions to
+recurse (amongst other things). It does this by interpolating Perl code in the
+expression at run time, and the code can refer to the expression itself. A Perl
+pattern using code interpolation to solve the parentheses problem can be
+created like this:
+<pre>
+  $re = qr{\( (?: (?&#62;[^()]+) | (?p{$re}) )* \)}x;
+</pre>
+The (?p{...}) item interpolates Perl code at run time, and in this case refers
+recursively to the pattern in which it appears.
+</P>
+<P>
+Obviously, PCRE cannot support the interpolation of Perl code. Instead, it
+supports special syntax for recursion of the entire pattern, and also for
+individual subpattern recursion. After its introduction in PCRE and Python,
+this kind of recursion was subsequently introduced into Perl at release 5.10.
+</P>
+<P>
+A special item that consists of (? followed by a number greater than zero and a
+closing parenthesis is a recursive subroutine call of the subpattern of the
+given number, provided that it occurs inside that subpattern. (If not, it is a
+<a href="#subpatternsassubroutines">non-recursive subroutine</a>
+call, which is described in the next section.) The special item (?R) or (?0) is
+a recursive call of the entire regular expression.
+</P>
+<P>
+This PCRE pattern solves the nested parentheses problem (assume the
+PCRE_EXTENDED option is set so that white space is ignored):
+<pre>
+  \( ( [^()]++ | (?R) )* \)
+</pre>
+First it matches an opening parenthesis. Then it matches any number of
+substrings which can either be a sequence of non-parentheses, or a recursive
+match of the pattern itself (that is, a correctly parenthesized substring).
+Finally there is a closing parenthesis. Note the use of a possessive quantifier
+to avoid backtracking into sequences of non-parentheses.
+</P>
+<P>
+If this were part of a larger pattern, you would not want to recurse the entire
+pattern, so instead you could use this:
+<pre>
+  ( \( ( [^()]++ | (?1) )* \) )
+</pre>
+We have put the pattern into parentheses, and caused the recursion to refer to
+them instead of the whole pattern.
+</P>
+<P>
+In a larger pattern, keeping track of parenthesis numbers can be tricky. This
+is made easier by the use of relative references. Instead of (?1) in the
+pattern above you can write (?-2) to refer to the second most recently opened
+parentheses preceding the recursion. In other words, a negative number counts
+capturing parentheses leftwards from the point at which it is encountered.
+</P>
+<P>
+It is also possible to refer to subsequently opened parentheses, by writing
+references such as (?+2). However, these cannot be recursive because the
+reference is not inside the parentheses that are referenced. They are always
+<a href="#subpatternsassubroutines">non-recursive subroutine</a>
+calls, as described in the next section.
+</P>
+<P>
+An alternative approach is to use named parentheses instead. The Perl syntax
+for this is (?&name); PCRE's earlier syntax (?P&#62;name) is also supported. We
+could rewrite the above example as follows:
+<pre>
+  (?&#60;pn&#62; \( ( [^()]++ | (?&pn) )* \) )
+</pre>
+If there is more than one subpattern with the same name, the earliest one is
+used.
+</P>
+<P>
+This particular example pattern that we have been looking at contains nested
+unlimited repeats, and so the use of a possessive quantifier for matching
+strings of non-parentheses is important when applying the pattern to strings
+that do not match. For example, when this pattern is applied to
+<pre>
+  (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()
+</pre>
+it yields "no match" quickly. However, if a possessive quantifier is not used,
+the match runs for a very long time indeed because there are so many different
+ways the + and * repeats can carve up the subject, and all have to be tested
+before failure can be reported.
+</P>
+<P>
+At the end of a match, the values of capturing parentheses are those from
+the outermost level. If you want to obtain intermediate values, a callout
+function can be used (see below and the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation). If the pattern above is matched against
+<pre>
+  (ab(cd)ef)
+</pre>
+the value for the inner capturing parentheses (numbered 2) is "ef", which is
+the last value taken on at the top level. If a capturing subpattern is not
+matched at the top level, its final captured value is unset, even if it was
+(temporarily) set at a deeper level during the matching process.
+</P>
+<P>
+If there are more than 15 capturing parentheses in a pattern, PCRE has to
+obtain extra memory to store data during a recursion, which it does by using
+<b>pcre_malloc</b>, freeing it via <b>pcre_free</b> afterwards. If no memory can
+be obtained, the match fails with the PCRE_ERROR_NOMEMORY error.
+</P>
+<P>
+Do not confuse the (?R) item with the condition (R), which tests for recursion.
+Consider this pattern, which matches text in angle brackets, allowing for
+arbitrary nesting. Only digits are allowed in nested brackets (that is, when
+recursing), whereas any characters are permitted at the outer level.
+<pre>
+  &#60; (?: (?(R) \d++  | [^&#60;&#62;]*+) | (?R)) * &#62;
+</pre>
+In this pattern, (?(R) is the start of a conditional subpattern, with two
+different alternatives for the recursive and non-recursive cases. The (?R) item
+is the actual recursive call.
+<a name="recursiondifference"></a></P>
+<br><b>
+Differences in recursion processing between PCRE and Perl
+</b><br>
+<P>
+Recursion processing in PCRE differs from Perl in two important ways. In PCRE
+(like Python, but unlike Perl), a recursive subpattern call is always treated
+as an atomic group. That is, once it has matched some of the subject string, it
+is never re-entered, even if it contains untried alternatives and there is a
+subsequent matching failure. This can be illustrated by the following pattern,
+which purports to match a palindromic string that contains an odd number of
+characters (for example, "a", "aba", "abcba", "abcdcba"):
+<pre>
+  ^(.|(.)(?1)\2)$
+</pre>
+The idea is that it either matches a single character, or two identical
+characters surrounding a sub-palindrome. In Perl, this pattern works; in PCRE
+it does not if the pattern is longer than three characters. Consider the
+subject string "abcba":
+</P>
+<P>
+At the top level, the first character is matched, but as it is not at the end
+of the string, the first alternative fails; the second alternative is taken
+and the recursion kicks in. The recursive call to subpattern 1 successfully
+matches the next character ("b"). (Note that the beginning and end of line
+tests are not part of the recursion).
+</P>
+<P>
+Back at the top level, the next character ("c") is compared with what
+subpattern 2 matched, which was "a". This fails. Because the recursion is
+treated as an atomic group, there are now no backtracking points, and so the
+entire match fails. (Perl is able, at this point, to re-enter the recursion and
+try the second alternative.) However, if the pattern is written with the
+alternatives in the other order, things are different:
+<pre>
+  ^((.)(?1)\2|.)$
+</pre>
+This time, the recursing alternative is tried first, and continues to recurse
+until it runs out of characters, at which point the recursion fails. But this
+time we do have another alternative to try at the higher level. That is the big
+difference: in the previous case the remaining alternative is at a deeper
+recursion level, which PCRE cannot use.
+</P>
+<P>
+To change the pattern so that it matches all palindromic strings, not just
+those with an odd number of characters, it is tempting to change the pattern to
+this:
+<pre>
+  ^((.)(?1)\2|.?)$
+</pre>
+Again, this works in Perl, but not in PCRE, and for the same reason. When a
+deeper recursion has matched a single character, it cannot be entered again in
+order to match an empty string. The solution is to separate the two cases, and
+write out the odd and even cases as alternatives at the higher level:
+<pre>
+  ^(?:((.)(?1)\2|)|((.)(?3)\4|.))
+</pre>
+If you want to match typical palindromic phrases, the pattern has to ignore all
+non-word characters, which can be done like this:
+<pre>
+  ^\W*+(?:((.)\W*+(?1)\W*+\2|)|((.)\W*+(?3)\W*+\4|\W*+.\W*+))\W*+$
+</pre>
+If run with the PCRE_CASELESS option, this pattern matches phrases such as "A
+man, a plan, a canal: Panama!" and it works well in both PCRE and Perl. Note
+the use of the possessive quantifier *+ to avoid backtracking into sequences of
+non-word characters. Without this, PCRE takes a great deal longer (ten times or
+more) to match typical phrases, and Perl takes so long that you think it has
+gone into a loop.
+</P>
+<P>
+<b>WARNING</b>: The palindrome-matching patterns above work only if the subject
+string does not start with a palindrome that is shorter than the entire string.
+For example, although "abcba" is correctly matched, if the subject is "ababa",
+PCRE finds the palindrome "aba" at the start, then fails at top level because
+the end of the string does not follow. Once again, it cannot jump back into the
+recursion to try other alternatives, so the entire match fails.
+</P>
+<P>
+The second way in which PCRE and Perl differ in their recursion processing is
+in the handling of captured values. In Perl, when a subpattern is called
+recursively or as a subpattern (see the next section), it has no access to any
+values that were captured outside the recursion, whereas in PCRE these values
+can be referenced. Consider this pattern:
+<pre>
+  ^(.)(\1|a(?2))
+</pre>
+In PCRE, this pattern matches "bab". The first capturing parentheses match "b",
+then in the second group, when the back reference \1 fails to match "b", the
+second alternative matches "a" and then recurses. In the recursion, \1 does
+now match "b" and so the whole match succeeds. In Perl, the pattern fails to
+match because inside the recursive call \1 cannot access the externally set
+value.
+<a name="subpatternsassubroutines"></a></P>
+<br><a name="SEC22" href="#TOC1">SUBPATTERNS AS SUBROUTINES</a><br>
+<P>
+If the syntax for a recursive subpattern call (either by number or by
+name) is used outside the parentheses to which it refers, it operates like a
+subroutine in a programming language. The called subpattern may be defined
+before or after the reference. A numbered reference can be absolute or
+relative, as in these examples:
+<pre>
+  (...(absolute)...)...(?2)...
+  (...(relative)...)...(?-1)...
+  (...(?+1)...(relative)...
+</pre>
+An earlier example pointed out that the pattern
+<pre>
+  (sens|respons)e and \1ibility
+</pre>
+matches "sense and sensibility" and "response and responsibility", but not
+"sense and responsibility". If instead the pattern
+<pre>
+  (sens|respons)e and (?1)ibility
+</pre>
+is used, it does match "sense and responsibility" as well as the other two
+strings. Another example is given in the discussion of DEFINE above.
+</P>
+<P>
+All subroutine calls, whether recursive or not, are always treated as atomic
+groups. That is, once a subroutine has matched some of the subject string, it
+is never re-entered, even if it contains untried alternatives and there is a
+subsequent matching failure. Any capturing parentheses that are set during the
+subroutine call revert to their previous values afterwards.
+</P>
+<P>
+Processing options such as case-independence are fixed when a subpattern is
+defined, so if it is used as a subroutine, such options cannot be changed for
+different calls. For example, consider this pattern:
+<pre>
+  (abc)(?i:(?-1))
+</pre>
+It matches "abcabc". It does not match "abcABC" because the change of
+processing option does not affect the called subpattern.
+<a name="onigurumasubroutines"></a></P>
+<br><a name="SEC23" href="#TOC1">ONIGURUMA SUBROUTINE SYNTAX</a><br>
+<P>
+For compatibility with Oniguruma, the non-Perl syntax \g followed by a name or
+a number enclosed either in angle brackets or single quotes, is an alternative
+syntax for referencing a subpattern as a subroutine, possibly recursively. Here
+are two of the examples used above, rewritten using this syntax:
+<pre>
+  (?&#60;pn&#62; \( ( (?&#62;[^()]+) | \g&#60;pn&#62; )* \) )
+  (sens|respons)e and \g'1'ibility
+</pre>
+PCRE supports an extension to Oniguruma: if a number is preceded by a
+plus or a minus sign it is taken as a relative reference. For example:
+<pre>
+  (abc)(?i:\g&#60;-1&#62;)
+</pre>
+Note that \g{...} (Perl syntax) and \g&#60;...&#62; (Oniguruma syntax) are <i>not</i>
+synonymous. The former is a back reference; the latter is a subroutine call.
+</P>
+<br><a name="SEC24" href="#TOC1">CALLOUTS</a><br>
+<P>
+Perl has a feature whereby using the sequence (?{...}) causes arbitrary Perl
+code to be obeyed in the middle of matching a regular expression. This makes it
+possible, amongst other things, to extract different substrings that match the
+same pair of parentheses when there is a repetition.
+</P>
+<P>
+PCRE provides a similar feature, but of course it cannot obey arbitrary Perl
+code. The feature is called "callout". The caller of PCRE provides an external
+function by putting its entry point in the global variable <i>pcre_callout</i>
+(8-bit library) or <i>pcre16_callout</i> (16-bit library). By default, this
+variable contains NULL, which disables all calling out.
+</P>
+<P>
+Within a regular expression, (?C) indicates the points at which the external
+function is to be called. If you want to identify different callout points, you
+can put a number less than 256 after the letter C. The default value is zero.
+For example, this pattern has two callout points:
+<pre>
+  (?C1)abc(?C2)def
+</pre>
+If the PCRE_AUTO_CALLOUT flag is passed to a compiling function, callouts are
+automatically installed before each item in the pattern. They are all numbered
+255.
+</P>
+<P>
+During matching, when PCRE reaches a callout point, the external function is
+called. It is provided with the number of the callout, the position in the
+pattern, and, optionally, one item of data originally supplied by the caller of
+the matching function. The callout function may cause matching to proceed, to
+backtrack, or to fail altogether. A complete description of the interface to
+the callout function is given in the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation.
+<a name="backtrackcontrol"></a></P>
+<br><a name="SEC25" href="#TOC1">BACKTRACKING CONTROL</a><br>
+<P>
+Perl 5.10 introduced a number of "Special Backtracking Control Verbs", which
+are described in the Perl documentation as "experimental and subject to change
+or removal in a future version of Perl". It goes on to say: "Their usage in
+production code should be noted to avoid problems during upgrades." The same
+remarks apply to the PCRE features described in this section.
+</P>
+<P>
+Since these verbs are specifically related to backtracking, most of them can be
+used only when the pattern is to be matched using one of the traditional
+matching functions, which use a backtracking algorithm. With the exception of
+(*FAIL), which behaves like a failing negative assertion, they cause an error
+if encountered by a DFA matching function.
+</P>
+<P>
+If any of these verbs are used in an assertion or in a subpattern that is
+called as a subroutine (whether or not recursively), their effect is confined
+to that subpattern; it does not extend to the surrounding pattern, with one
+exception: the name from a *(MARK), (*PRUNE), or (*THEN) that is encountered in
+a successful positive assertion <i>is</i> passed back when a match succeeds
+(compare capturing parentheses in assertions). Note that such subpatterns are
+processed as anchored at the point where they are tested. Note also that Perl's
+treatment of subroutines and assertions is different in some cases.
+</P>
+<P>
+The new verbs make use of what was previously invalid syntax: an opening
+parenthesis followed by an asterisk. They are generally of the form
+(*VERB) or (*VERB:NAME). Some may take either form, with differing behaviour,
+depending on whether or not an argument is present. A name is any sequence of
+characters that does not include a closing parenthesis. The maximum length of
+name is 255 in the 8-bit library and 65535 in the 16-bit library. If the name
+is empty, that is, if the closing parenthesis immediately follows the colon,
+the effect is as if the colon were not there. Any number of these verbs may
+occur in a pattern.
+<a name="nooptimize"></a></P>
+<br><b>
+Optimizations that affect backtracking verbs
+</b><br>
+<P>
+PCRE contains some optimizations that are used to speed up matching by running
+some checks at the start of each match attempt. For example, it may know the
+minimum length of matching subject, or that a particular character must be
+present. When one of these optimizations suppresses the running of a match, any
+included backtracking verbs will not, of course, be processed. You can suppress
+the start-of-match optimizations by setting the PCRE_NO_START_OPTIMIZE option
+when calling <b>pcre_compile()</b> or <b>pcre_exec()</b>, or by starting the
+pattern with (*NO_START_OPT). There is more discussion of this option in the
+section entitled
+<a href="pcreapi.html#execoptions">"Option bits for <b>pcre_exec()</b>"</a>
+in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation.
+</P>
+<P>
+Experiments with Perl suggest that it too has similar optimizations, sometimes
+leading to anomalous results.
+</P>
+<br><b>
+Verbs that act immediately
+</b><br>
+<P>
+The following verbs act as soon as they are encountered. They may not be
+followed by a name.
+<pre>
+   (*ACCEPT)
+</pre>
+This verb causes the match to end successfully, skipping the remainder of the
+pattern. However, when it is inside a subpattern that is called as a
+subroutine, only that subpattern is ended successfully. Matching then continues
+at the outer level. If (*ACCEPT) is inside capturing parentheses, the data so
+far is captured. For example:
+<pre>
+  A((?:A|B(*ACCEPT)|C)D)
+</pre>
+This matches "AB", "AAD", or "ACD"; when it matches "AB", "B" is captured by
+the outer parentheses.
+<pre>
+  (*FAIL) or (*F)
+</pre>
+This verb causes a matching failure, forcing backtracking to occur. It is
+equivalent to (?!) but easier to read. The Perl documentation notes that it is
+probably useful only when combined with (?{}) or (??{}). Those are, of course,
+Perl features that are not present in PCRE. The nearest equivalent is the
+callout feature, as for example in this pattern:
+<pre>
+  a+(?C)(*FAIL)
+</pre>
+A match with the string "aaaa" always fails, but the callout is taken before
+each backtrack happens (in this example, 10 times).
+</P>
+<br><b>
+Recording which path was taken
+</b><br>
+<P>
+There is one verb whose main purpose is to track how a match was arrived at,
+though it also has a secondary use in conjunction with advancing the match
+starting point (see (*SKIP) below).
+<pre>
+  (*MARK:NAME) or (*:NAME)
+</pre>
+A name is always required with this verb. There may be as many instances of
+(*MARK) as you like in a pattern, and their names do not have to be unique.
+</P>
+<P>
+When a match succeeds, the name of the last-encountered (*MARK) on the matching
+path is passed back to the caller as described in the section entitled
+<a href="pcreapi.html#extradata">"Extra data for <b>pcre_exec()</b>"</a>
+in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation. Here is an example of <b>pcretest</b> output, where the /K
+modifier requests the retrieval and outputting of (*MARK) data:
+<pre>
+    re&#62; /X(*MARK:A)Y|X(*MARK:B)Z/K
+  data&#62; XY
+   0: XY
+  MK: A
+  XZ
+   0: XZ
+  MK: B
+</pre>
+The (*MARK) name is tagged with "MK:" in this output, and in this example it
+indicates which of the two alternatives matched. This is a more efficient way
+of obtaining this information than putting each alternative in its own
+capturing parentheses.
+</P>
+<P>
+If (*MARK) is encountered in a positive assertion, its name is recorded and
+passed back if it is the last-encountered. This does not happen for negative
+assertions.
+</P>
+<P>
+After a partial match or a failed match, the name of the last encountered
+(*MARK) in the entire match process is returned. For example:
+<pre>
+    re&#62; /X(*MARK:A)Y|X(*MARK:B)Z/K
+  data&#62; XP
+  No match, mark = B
+</pre>
+Note that in this unanchored example the mark is retained from the match
+attempt that started at the letter "X" in the subject. Subsequent match
+attempts starting at "P" and then with an empty string do not get as far as the
+(*MARK) item, but nevertheless do not reset it.
+</P>
+<P>
+If you are interested in (*MARK) values after failed matches, you should
+probably set the PCRE_NO_START_OPTIMIZE option
+<a href="#nooptimize">(see above)</a>
+to ensure that the match is always attempted.
+</P>
+<br><b>
+Verbs that act after backtracking
+</b><br>
+<P>
+The following verbs do nothing when they are encountered. Matching continues
+with what follows, but if there is no subsequent match, causing a backtrack to
+the verb, a failure is forced. That is, backtracking cannot pass to the left of
+the verb. However, when one of these verbs appears inside an atomic group, its
+effect is confined to that group, because once the group has been matched,
+there is never any backtracking into it. In this situation, backtracking can
+"jump back" to the left of the entire atomic group. (Remember also, as stated
+above, that this localization also applies in subroutine calls and assertions.)
+</P>
+<P>
+These verbs differ in exactly what kind of failure occurs when backtracking
+reaches them.
+<pre>
+  (*COMMIT)
+</pre>
+This verb, which may not be followed by a name, causes the whole match to fail
+outright if the rest of the pattern does not match. Even if the pattern is
+unanchored, no further attempts to find a match by advancing the starting point
+take place. Once (*COMMIT) has been passed, <b>pcre_exec()</b> is committed to
+finding a match at the current starting point, or not at all. For example:
+<pre>
+  a+(*COMMIT)b
+</pre>
+This matches "xxaab" but not "aacaab". It can be thought of as a kind of
+dynamic anchor, or "I've started, so I must finish." The name of the most
+recently passed (*MARK) in the path is passed back when (*COMMIT) forces a
+match failure.
+</P>
+<P>
+Note that (*COMMIT) at the start of a pattern is not the same as an anchor,
+unless PCRE's start-of-match optimizations are turned off, as shown in this
+<b>pcretest</b> example:
+<pre>
+    re&#62; /(*COMMIT)abc/
+  data&#62; xyzabc
+   0: abc
+  xyzabc\Y
+  No match
+</pre>
+PCRE knows that any match must start with "a", so the optimization skips along
+the subject to "a" before running the first match attempt, which succeeds. When
+the optimization is disabled by the \Y escape in the second subject, the match
+starts at "x" and so the (*COMMIT) causes it to fail without trying any other
+starting points.
+<pre>
+  (*PRUNE) or (*PRUNE:NAME)
+</pre>
+This verb causes the match to fail at the current starting position in the
+subject if the rest of the pattern does not match. If the pattern is
+unanchored, the normal "bumpalong" advance to the next starting character then
+happens. Backtracking can occur as usual to the left of (*PRUNE), before it is
+reached, or when matching to the right of (*PRUNE), but if there is no match to
+the right, backtracking cannot cross (*PRUNE). In simple cases, the use of
+(*PRUNE) is just an alternative to an atomic group or possessive quantifier,
+but there are some uses of (*PRUNE) that cannot be expressed in any other way.
+The behaviour of (*PRUNE:NAME) is the same as (*MARK:NAME)(*PRUNE). In an
+anchored pattern (*PRUNE) has the same effect as (*COMMIT).
+<pre>
+  (*SKIP)
+</pre>
+This verb, when given without a name, is like (*PRUNE), except that if the
+pattern is unanchored, the "bumpalong" advance is not to the next character,
+but to the position in the subject where (*SKIP) was encountered. (*SKIP)
+signifies that whatever text was matched leading up to it cannot be part of a
+successful match. Consider:
+<pre>
+  a+(*SKIP)b
+</pre>
+If the subject is "aaaac...", after the first match attempt fails (starting at
+the first character in the string), the starting point skips on to start the
+next attempt at "c". Note that a possessive quantifer does not have the same
+effect as this example; although it would suppress backtracking during the
+first match attempt, the second attempt would start at the second character
+instead of skipping on to "c".
+<pre>
+  (*SKIP:NAME)
+</pre>
+When (*SKIP) has an associated name, its behaviour is modified. If the
+following pattern fails to match, the previous path through the pattern is
+searched for the most recent (*MARK) that has the same name. If one is found,
+the "bumpalong" advance is to the subject position that corresponds to that
+(*MARK) instead of to where (*SKIP) was encountered. If no (*MARK) with a
+matching name is found, the (*SKIP) is ignored.
+<pre>
+  (*THEN) or (*THEN:NAME)
+</pre>
+This verb causes a skip to the next innermost alternative if the rest of the
+pattern does not match. That is, it cancels pending backtracking, but only
+within the current alternative. Its name comes from the observation that it can
+be used for a pattern-based if-then-else block:
+<pre>
+  ( COND1 (*THEN) FOO | COND2 (*THEN) BAR | COND3 (*THEN) BAZ ) ...
+</pre>
+If the COND1 pattern matches, FOO is tried (and possibly further items after
+the end of the group if FOO succeeds); on failure, the matcher skips to the
+second alternative and tries COND2, without backtracking into COND1. The
+behaviour of (*THEN:NAME) is exactly the same as (*MARK:NAME)(*THEN).
+If (*THEN) is not inside an alternation, it acts like (*PRUNE).
+</P>
+<P>
+Note that a subpattern that does not contain a | character is just a part of
+the enclosing alternative; it is not a nested alternation with only one
+alternative. The effect of (*THEN) extends beyond such a subpattern to the
+enclosing alternative. Consider this pattern, where A, B, etc. are complex
+pattern fragments that do not contain any | characters at this level:
+<pre>
+  A (B(*THEN)C) | D
+</pre>
+If A and B are matched, but there is a failure in C, matching does not
+backtrack into A; instead it moves to the next alternative, that is, D.
+However, if the subpattern containing (*THEN) is given an alternative, it
+behaves differently:
+<pre>
+  A (B(*THEN)C | (*FAIL)) | D
+</pre>
+The effect of (*THEN) is now confined to the inner subpattern. After a failure
+in C, matching moves to (*FAIL), which causes the whole subpattern to fail
+because there are no more alternatives to try. In this case, matching does now
+backtrack into A.
+</P>
+<P>
+Note also that a conditional subpattern is not considered as having two
+alternatives, because only one is ever used. In other words, the | character in
+a conditional subpattern has a different meaning. Ignoring white space,
+consider:
+<pre>
+  ^.*? (?(?=a) a | b(*THEN)c )
+</pre>
+If the subject is "ba", this pattern does not match. Because .*? is ungreedy,
+it initially matches zero characters. The condition (?=a) then fails, the
+character "b" is matched, but "c" is not. At this point, matching does not
+backtrack to .*? as might perhaps be expected from the presence of the |
+character. The conditional subpattern is part of the single alternative that
+comprises the whole pattern, and so the match fails. (If there was a backtrack
+into .*?, allowing it to match "b", the match would succeed.)
+</P>
+<P>
+The verbs just described provide four different "strengths" of control when
+subsequent matching fails. (*THEN) is the weakest, carrying on the match at the
+next alternative. (*PRUNE) comes next, failing the match at the current
+starting position, but allowing an advance to the next character (for an
+unanchored pattern). (*SKIP) is similar, except that the advance may be more
+than one character. (*COMMIT) is the strongest, causing the entire match to
+fail.
+</P>
+<P>
+If more than one such verb is present in a pattern, the "strongest" one wins.
+For example, consider this pattern, where A, B, etc. are complex pattern
+fragments:
+<pre>
+  (A(*COMMIT)B(*THEN)C|D)
+</pre>
+Once A has matched, PCRE is committed to this match, at the current starting
+position. If subsequently B matches, but C does not, the normal (*THEN) action
+of trying the next alternative (that is, D) does not happen because (*COMMIT)
+overrides.
+</P>
+<br><a name="SEC26" href="#TOC1">SEE ALSO</a><br>
+<P>
+<b>pcreapi</b>(3), <b>pcrecallout</b>(3), <b>pcrematching</b>(3),
+<b>pcresyntax</b>(3), <b>pcre</b>(3), <b>pcre16(3)</b>.
+</P>
+<br><a name="SEC27" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC28" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 17 June 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcreperform.html b/8.31/doc/html/pcreperform.html
new file mode 100644
index 0000000..f7c8595
--- /dev/null
+++ b/8.31/doc/html/pcreperform.html
@@ -0,0 +1,196 @@
+<html>
+<head>
+<title>pcreperform specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcreperform man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+PCRE PERFORMANCE
+</b><br>
+<P>
+Two aspects of performance are discussed below: memory usage and processing
+time. The way you express your pattern as a regular expression can affect both
+of them.
+</P>
+<br><b>
+COMPILED PATTERN MEMORY USAGE
+</b><br>
+<P>
+Patterns are compiled by PCRE into a reasonably efficient interpretive code, so
+that most simple patterns do not use much memory. However, there is one case
+where the memory usage of a compiled pattern can be unexpectedly large. If a
+parenthesized subpattern has a quantifier with a minimum greater than 1 and/or
+a limited maximum, the whole subpattern is repeated in the compiled code. For
+example, the pattern
+<pre>
+  (abc|def){2,4}
+</pre>
+is compiled as if it were
+<pre>
+  (abc|def)(abc|def)((abc|def)(abc|def)?)?
+</pre>
+(Technical aside: It is done this way so that backtrack points within each of
+the repetitions can be independently maintained.)
+</P>
+<P>
+For regular expressions whose quantifiers use only small numbers, this is not
+usually a problem. However, if the numbers are large, and particularly if such
+repetitions are nested, the memory usage can become an embarrassment. For
+example, the very simple pattern
+<pre>
+  ((ab){1,1000}c){1,3}
+</pre>
+uses 51K bytes when compiled using the 8-bit library. When PCRE is compiled
+with its default internal pointer size of two bytes, the size limit on a
+compiled pattern is 64K data units, and this is reached with the above pattern
+if the outer repetition is increased from 3 to 4. PCRE can be compiled to use
+larger internal pointers and thus handle larger compiled patterns, but it is
+better to try to rewrite your pattern to use less memory if you can.
+</P>
+<P>
+One way of reducing the memory usage for such patterns is to make use of PCRE's
+<a href="pcrepattern.html#subpatternsassubroutines">"subroutine"</a>
+facility. Re-writing the above pattern as
+<pre>
+  ((ab)(?2){0,999}c)(?1){0,2}
+</pre>
+reduces the memory requirements to 18K, and indeed it remains under 20K even
+with the outer repetition increased to 100. However, this pattern is not
+exactly equivalent, because the "subroutine" calls are treated as
+<a href="pcrepattern.html#atomicgroup">atomic groups</a>
+into which there can be no backtracking if there is a subsequent matching
+failure. Therefore, PCRE cannot do this kind of rewriting automatically.
+Furthermore, there is a noticeable loss of speed when executing the modified
+pattern. Nevertheless, if the atomic grouping is not a problem and the loss of
+speed is acceptable, this kind of rewriting will allow you to process patterns
+that PCRE cannot otherwise handle.
+</P>
+<br><b>
+STACK USAGE AT RUN TIME
+</b><br>
+<P>
+When <b>pcre_exec()</b> or <b>pcre16_exec()</b> is used for matching, certain
+kinds of pattern can cause it to use large amounts of the process stack. In
+some environments the default process stack is quite small, and if it runs out
+the result is often SIGSEGV. This issue is probably the most frequently raised
+problem with PCRE. Rewriting your pattern can often help. The
+<a href="pcrestack.html"><b>pcrestack</b></a>
+documentation discusses this issue in detail.
+</P>
+<br><b>
+PROCESSING TIME
+</b><br>
+<P>
+Certain items in regular expression patterns are processed more efficiently
+than others. It is more efficient to use a character class like [aeiou] than a
+set of single-character alternatives such as (a|e|i|o|u). In general, the
+simplest construction that provides the required behaviour is usually the most
+efficient. Jeffrey Friedl's book contains a lot of useful general discussion
+about optimizing regular expressions for efficient performance. This document
+contains a few observations about PCRE.
+</P>
+<P>
+Using Unicode character properties (the \p, \P, and \X escapes) is slow,
+because PCRE has to scan a structure that contains data for over fifteen
+thousand characters whenever it needs a character's property. If you can find
+an alternative pattern that does not use character properties, it will probably
+be faster.
+</P>
+<P>
+By default, the escape sequences \b, \d, \s, and \w, and the POSIX
+character classes such as [:alpha:] do not use Unicode properties, partly for
+backwards compatibility, and partly for performance reasons. However, you can
+set PCRE_UCP if you want Unicode character properties to be used. This can
+double the matching time for items such as \d, when matched with
+a traditional matching function; the performance loss is less with
+a DFA matching function, and in both cases there is not much difference for
+\b.
+</P>
+<P>
+When a pattern begins with .* not in parentheses, or in parentheses that are
+not the subject of a backreference, and the PCRE_DOTALL option is set, the
+pattern is implicitly anchored by PCRE, since it can match only at the start of
+a subject string. However, if PCRE_DOTALL is not set, PCRE cannot make this
+optimization, because the . metacharacter does not then match a newline, and if
+the subject string contains newlines, the pattern may match from the character
+immediately following one of them instead of from the very start. For example,
+the pattern
+<pre>
+  .*second
+</pre>
+matches the subject "first\nand second" (where \n stands for a newline
+character), with the match starting at the seventh character. In order to do
+this, PCRE has to retry the match starting after every newline in the subject.
+</P>
+<P>
+If you are using such a pattern with subject strings that do not contain
+newlines, the best performance is obtained by setting PCRE_DOTALL, or starting
+the pattern with ^.* or ^.*? to indicate explicit anchoring. That saves PCRE
+from having to scan along the subject looking for a newline to restart at.
+</P>
+<P>
+Beware of patterns that contain nested indefinite repeats. These can take a
+long time to run when applied to a string that does not match. Consider the
+pattern fragment
+<pre>
+  ^(a+)*
+</pre>
+This can match "aaaa" in 16 different ways, and this number increases very
+rapidly as the string gets longer. (The * repeat can match 0, 1, 2, 3, or 4
+times, and for each of those cases other than 0 or 4, the + repeats can match
+different numbers of times.) When the remainder of the pattern is such that the
+entire match is going to fail, PCRE has in principle to try every possible
+variation, and this can take an extremely long time, even for relatively short
+strings.
+</P>
+<P>
+An optimization catches some of the more simple cases such as
+<pre>
+  (a+)*b
+</pre>
+where a literal character follows. Before embarking on the standard matching
+procedure, PCRE checks that there is a "b" later in the subject string, and if
+there is not, it fails the match immediately. However, when there is no
+following literal this optimization cannot be used. You can see the difference
+by comparing the behaviour of
+<pre>
+  (a+)*\d
+</pre>
+with the pattern above. The former gives a failure almost instantly when
+applied to a whole line of "a" characters, whereas the latter takes an
+appreciable time with strings longer than about 20 characters.
+</P>
+<P>
+In many cases, the solution to this kind of performance issue is to use an
+atomic group or a possessive quantifier.
+</P>
+<br><b>
+AUTHOR
+</b><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><b>
+REVISION
+</b><br>
+<P>
+Last updated: 09 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcreposix.html b/8.31/doc/html/pcreposix.html
new file mode 100644
index 0000000..9aa699a
--- /dev/null
+++ b/8.31/doc/html/pcreposix.html
@@ -0,0 +1,292 @@
+<html>
+<head>
+<title>pcreposix specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcreposix man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">SYNOPSIS OF POSIX API</a>
+<li><a name="TOC2" href="#SEC2">DESCRIPTION</a>
+<li><a name="TOC3" href="#SEC3">COMPILING A PATTERN</a>
+<li><a name="TOC4" href="#SEC4">MATCHING NEWLINE CHARACTERS</a>
+<li><a name="TOC5" href="#SEC5">MATCHING A PATTERN</a>
+<li><a name="TOC6" href="#SEC6">ERROR MESSAGES</a>
+<li><a name="TOC7" href="#SEC7">MEMORY USAGE</a>
+<li><a name="TOC8" href="#SEC8">AUTHOR</a>
+<li><a name="TOC9" href="#SEC9">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">SYNOPSIS OF POSIX API</a><br>
+<P>
+<b>#include &#60;pcreposix.h&#62;</b>
+</P>
+<P>
+<b>int regcomp(regex_t *<i>preg</i>, const char *<i>pattern</i>,</b>
+<b>int <i>cflags</i>);</b>
+</P>
+<P>
+<b>int regexec(regex_t *<i>preg</i>, const char *<i>string</i>,</b>
+<b>size_t <i>nmatch</i>, regmatch_t <i>pmatch</i>[], int <i>eflags</i>);</b>
+</P>
+<P>
+<b>size_t regerror(int <i>errcode</i>, const regex_t *<i>preg</i>,</b>
+<b>char *<i>errbuf</i>, size_t <i>errbuf_size</i>);</b>
+</P>
+<P>
+<b>void regfree(regex_t *<i>preg</i>);</b>
+</P>
+<br><a name="SEC2" href="#TOC1">DESCRIPTION</a><br>
+<P>
+This set of functions provides a POSIX-style API for the PCRE regular
+expression 8-bit library. See the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation for a description of PCRE's native API, which contains much
+additional functionality. There is no POSIX-style wrapper for PCRE's 16-bit
+library.
+</P>
+<P>
+The functions described here are just wrapper functions that ultimately call
+the PCRE native API. Their prototypes are defined in the <b>pcreposix.h</b>
+header file, and on Unix systems the library itself is called
+<b>pcreposix.a</b>, so can be accessed by adding <b>-lpcreposix</b> to the
+command for linking an application that uses them. Because the POSIX functions
+call the native ones, it is also necessary to add <b>-lpcre</b>.
+</P>
+<P>
+I have implemented only those POSIX option bits that can be reasonably mapped
+to PCRE native options. In addition, the option REG_EXTENDED is defined with
+the value zero. This has no effect, but since programs that are written to the
+POSIX interface often use it, this makes it easier to slot in PCRE as a
+replacement library. Other POSIX options are not even defined.
+</P>
+<P>
+There are also some other options that are not defined by POSIX. These have
+been added at the request of users who want to make use of certain
+PCRE-specific features via the POSIX calling interface.
+</P>
+<P>
+When PCRE is called via these functions, it is only the API that is POSIX-like
+in style. The syntax and semantics of the regular expressions themselves are
+still those of Perl, subject to the setting of various PCRE options, as
+described below. "POSIX-like in style" means that the API approximates to the
+POSIX definition; it is not fully POSIX-compatible, and in multi-byte encoding
+domains it is probably even less compatible.
+</P>
+<P>
+The header for these functions is supplied as <b>pcreposix.h</b> to avoid any
+potential clash with other POSIX libraries. It can, of course, be renamed or
+aliased as <b>regex.h</b>, which is the "correct" name. It provides two
+structure types, <i>regex_t</i> for compiled internal forms, and
+<i>regmatch_t</i> for returning captured substrings. It also defines some
+constants whose names start with "REG_"; these are used for setting options and
+identifying error codes.
+</P>
+<br><a name="SEC3" href="#TOC1">COMPILING A PATTERN</a><br>
+<P>
+The function <b>regcomp()</b> is called to compile a pattern into an
+internal form. The pattern is a C string terminated by a binary zero, and
+is passed in the argument <i>pattern</i>. The <i>preg</i> argument is a pointer
+to a <b>regex_t</b> structure that is used as a base for storing information
+about the compiled regular expression.
+</P>
+<P>
+The argument <i>cflags</i> is either zero, or contains one or more of the bits
+defined by the following macros:
+<pre>
+  REG_DOTALL
+</pre>
+The PCRE_DOTALL option is set when the regular expression is passed for
+compilation to the native function. Note that REG_DOTALL is not part of the
+POSIX standard.
+<pre>
+  REG_ICASE
+</pre>
+The PCRE_CASELESS option is set when the regular expression is passed for
+compilation to the native function.
+<pre>
+  REG_NEWLINE
+</pre>
+The PCRE_MULTILINE option is set when the regular expression is passed for
+compilation to the native function. Note that this does <i>not</i> mimic the
+defined POSIX behaviour for REG_NEWLINE (see the following section).
+<pre>
+  REG_NOSUB
+</pre>
+The PCRE_NO_AUTO_CAPTURE option is set when the regular expression is passed
+for compilation to the native function. In addition, when a pattern that is
+compiled with this flag is passed to <b>regexec()</b> for matching, the
+<i>nmatch</i> and <i>pmatch</i> arguments are ignored, and no captured strings
+are returned.
+<pre>
+  REG_UCP
+</pre>
+The PCRE_UCP option is set when the regular expression is passed for
+compilation to the native function. This causes PCRE to use Unicode properties
+when matchine \d, \w, etc., instead of just recognizing ASCII values. Note
+that REG_UTF8 is not part of the POSIX standard.
+<pre>
+  REG_UNGREEDY
+</pre>
+The PCRE_UNGREEDY option is set when the regular expression is passed for
+compilation to the native function. Note that REG_UNGREEDY is not part of the
+POSIX standard.
+<pre>
+  REG_UTF8
+</pre>
+The PCRE_UTF8 option is set when the regular expression is passed for
+compilation to the native function. This causes the pattern itself and all data
+strings used for matching it to be treated as UTF-8 strings. Note that REG_UTF8
+is not part of the POSIX standard.
+</P>
+<P>
+In the absence of these flags, no options are passed to the native function.
+This means the the regex is compiled with PCRE default semantics. In
+particular, the way it handles newline characters in the subject string is the
+Perl way, not the POSIX way. Note that setting PCRE_MULTILINE has only
+<i>some</i> of the effects specified for REG_NEWLINE. It does not affect the way
+newlines are matched by . (they are not) or by a negative class such as [^a]
+(they are).
+</P>
+<P>
+The yield of <b>regcomp()</b> is zero on success, and non-zero otherwise. The
+<i>preg</i> structure is filled in on success, and one member of the structure
+is public: <i>re_nsub</i> contains the number of capturing subpatterns in
+the regular expression. Various error codes are defined in the header file.
+</P>
+<P>
+NOTE: If the yield of <b>regcomp()</b> is non-zero, you must not attempt to
+use the contents of the <i>preg</i> structure. If, for example, you pass it to
+<b>regexec()</b>, the result is undefined and your program is likely to crash.
+</P>
+<br><a name="SEC4" href="#TOC1">MATCHING NEWLINE CHARACTERS</a><br>
+<P>
+This area is not simple, because POSIX and Perl take different views of things.
+It is not possible to get PCRE to obey POSIX semantics, but then PCRE was never
+intended to be a POSIX engine. The following table lists the different
+possibilities for matching newline characters in PCRE:
+<pre>
+                          Default   Change with
+
+  . matches newline          no     PCRE_DOTALL
+  newline matches [^a]       yes    not changeable
+  $ matches \n at end        yes    PCRE_DOLLARENDONLY
+  $ matches \n in middle     no     PCRE_MULTILINE
+  ^ matches \n in middle     no     PCRE_MULTILINE
+</pre>
+This is the equivalent table for POSIX:
+<pre>
+                          Default   Change with
+
+  . matches newline          yes    REG_NEWLINE
+  newline matches [^a]       yes    REG_NEWLINE
+  $ matches \n at end        no     REG_NEWLINE
+  $ matches \n in middle     no     REG_NEWLINE
+  ^ matches \n in middle     no     REG_NEWLINE
+</pre>
+PCRE's behaviour is the same as Perl's, except that there is no equivalent for
+PCRE_DOLLAR_ENDONLY in Perl. In both PCRE and Perl, there is no way to stop
+newline from matching [^a].
+</P>
+<P>
+The default POSIX newline handling can be obtained by setting PCRE_DOTALL and
+PCRE_DOLLAR_ENDONLY, but there is no way to make PCRE behave exactly as for the
+REG_NEWLINE action.
+</P>
+<br><a name="SEC5" href="#TOC1">MATCHING A PATTERN</a><br>
+<P>
+The function <b>regexec()</b> is called to match a compiled pattern <i>preg</i>
+against a given <i>string</i>, which is by default terminated by a zero byte
+(but see REG_STARTEND below), subject to the options in <i>eflags</i>. These can
+be:
+<pre>
+  REG_NOTBOL
+</pre>
+The PCRE_NOTBOL option is set when calling the underlying PCRE matching
+function.
+<pre>
+  REG_NOTEMPTY
+</pre>
+The PCRE_NOTEMPTY option is set when calling the underlying PCRE matching
+function. Note that REG_NOTEMPTY is not part of the POSIX standard. However,
+setting this option can give more POSIX-like behaviour in some situations.
+<pre>
+  REG_NOTEOL
+</pre>
+The PCRE_NOTEOL option is set when calling the underlying PCRE matching
+function.
+<pre>
+  REG_STARTEND
+</pre>
+The string is considered to start at <i>string</i> + <i>pmatch[0].rm_so</i> and
+to have a terminating NUL located at <i>string</i> + <i>pmatch[0].rm_eo</i>
+(there need not actually be a NUL at that location), regardless of the value of
+<i>nmatch</i>. This is a BSD extension, compatible with but not specified by
+IEEE Standard 1003.2 (POSIX.2), and should be used with caution in software
+intended to be portable to other systems. Note that a non-zero <i>rm_so</i> does
+not imply REG_NOTBOL; REG_STARTEND affects only the location of the string, not
+how it is matched.
+</P>
+<P>
+If the pattern was compiled with the REG_NOSUB flag, no data about any matched
+strings is returned. The <i>nmatch</i> and <i>pmatch</i> arguments of
+<b>regexec()</b> are ignored.
+</P>
+<P>
+If the value of <i>nmatch</i> is zero, or if the value <i>pmatch</i> is NULL,
+no data about any matched strings is returned.
+</P>
+<P>
+Otherwise,the portion of the string that was matched, and also any captured
+substrings, are returned via the <i>pmatch</i> argument, which points to an
+array of <i>nmatch</i> structures of type <i>regmatch_t</i>, containing the
+members <i>rm_so</i> and <i>rm_eo</i>. These contain the offset to the first
+character of each substring and the offset to the first character after the end
+of each substring, respectively. The 0th element of the vector relates to the
+entire portion of <i>string</i> that was matched; subsequent elements relate to
+the capturing subpatterns of the regular expression. Unused entries in the
+array have both structure members set to -1.
+</P>
+<P>
+A successful match yields a zero return; various error codes are defined in the
+header file, of which REG_NOMATCH is the "expected" failure code.
+</P>
+<br><a name="SEC6" href="#TOC1">ERROR MESSAGES</a><br>
+<P>
+The <b>regerror()</b> function maps a non-zero errorcode from either
+<b>regcomp()</b> or <b>regexec()</b> to a printable message. If <i>preg</i> is not
+NULL, the error should have arisen from the use of that structure. A message
+terminated by a binary zero is placed in <i>errbuf</i>. The length of the
+message, including the zero, is limited to <i>errbuf_size</i>. The yield of the
+function is the size of buffer needed to hold the whole message.
+</P>
+<br><a name="SEC7" href="#TOC1">MEMORY USAGE</a><br>
+<P>
+Compiling a regular expression causes memory to be allocated and associated
+with the <i>preg</i> structure. The function <b>regfree()</b> frees all such
+memory, after which <i>preg</i> may no longer be used as a compiled expression.
+</P>
+<br><a name="SEC8" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC9" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 09 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcreprecompile.html b/8.31/doc/html/pcreprecompile.html
new file mode 100644
index 0000000..8361b7a
--- /dev/null
+++ b/8.31/doc/html/pcreprecompile.html
@@ -0,0 +1,158 @@
+<html>
+<head>
+<title>pcreprecompile specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcreprecompile man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">SAVING AND RE-USING PRECOMPILED PCRE PATTERNS</a>
+<li><a name="TOC2" href="#SEC2">SAVING A COMPILED PATTERN</a>
+<li><a name="TOC3" href="#SEC3">RE-USING A PRECOMPILED PATTERN</a>
+<li><a name="TOC4" href="#SEC4">COMPATIBILITY WITH DIFFERENT PCRE RELEASES</a>
+<li><a name="TOC5" href="#SEC5">AUTHOR</a>
+<li><a name="TOC6" href="#SEC6">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">SAVING AND RE-USING PRECOMPILED PCRE PATTERNS</a><br>
+<P>
+If you are running an application that uses a large number of regular
+expression patterns, it may be useful to store them in a precompiled form
+instead of having to compile them every time the application is run.
+If you are not using any private character tables (see the
+<a href="pcre_maketables.html"><b>pcre_maketables()</b></a>
+documentation), this is relatively straightforward. If you are using private
+tables, it is a little bit more complicated. However, if you are using the
+just-in-time optimization feature, it is not possible to save and reload the
+JIT data.
+</P>
+<P>
+If you save compiled patterns to a file, you can copy them to a different host
+and run them there. If the two hosts have different endianness (byte order),
+you should run the <b>pcre[16]_pattern_to_host_byte_order()</b> function on the
+new host before trying to match the pattern. The matching functions return
+PCRE_ERROR_BADENDIANNESS if they detect a pattern with the wrong endianness.
+</P>
+<P>
+Compiling regular expressions with one version of PCRE for use with a different
+version is not guaranteed to work and may cause crashes, and saving and
+restoring a compiled pattern loses any JIT optimization data.
+</P>
+<br><a name="SEC2" href="#TOC1">SAVING A COMPILED PATTERN</a><br>
+<P>
+The value returned by <b>pcre[16]_compile()</b> points to a single block of
+memory that holds the compiled pattern and associated data. You can find the
+length of this block in bytes by calling <b>pcre[16]_fullinfo()</b> with an
+argument of PCRE_INFO_SIZE. You can then save the data in any appropriate
+manner. Here is sample code for the 8-bit library that compiles a pattern and
+writes it to a file. It assumes that the variable <i>fd</i> refers to a file
+that is open for output:
+<pre>
+  int erroroffset, rc, size;
+  char *error;
+  pcre *re;
+
+  re = pcre_compile("my pattern", 0, &error, &erroroffset, NULL);
+  if (re == NULL) { ... handle errors ... }
+  rc = pcre_fullinfo(re, NULL, PCRE_INFO_SIZE, &size);
+  if (rc &#60; 0) { ... handle errors ... }
+  rc = fwrite(re, 1, size, fd);
+  if (rc != size) { ... handle errors ... }
+</pre>
+In this example, the bytes that comprise the compiled pattern are copied
+exactly. Note that this is binary data that may contain any of the 256 possible
+byte values. On systems that make a distinction between binary and non-binary
+data, be sure that the file is opened for binary output.
+</P>
+<P>
+If you want to write more than one pattern to a file, you will have to devise a
+way of separating them. For binary data, preceding each pattern with its length
+is probably the most straightforward approach. Another possibility is to write
+out the data in hexadecimal instead of binary, one pattern to a line.
+</P>
+<P>
+Saving compiled patterns in a file is only one possible way of storing them for
+later use. They could equally well be saved in a database, or in the memory of
+some daemon process that passes them via sockets to the processes that want
+them.
+</P>
+<P>
+If the pattern has been studied, it is also possible to save the normal study
+data in a similar way to the compiled pattern itself. However, if the
+PCRE_STUDY_JIT_COMPILE was used, the just-in-time data that is created cannot
+be saved because it is too dependent on the current environment. When studying
+generates additional information, <b>pcre[16]_study()</b> returns a pointer to a
+<b>pcre[16]_extra</b> data block. Its format is defined in the
+<a href="pcreapi.html#extradata">section on matching a pattern</a>
+in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation. The <i>study_data</i> field points to the binary study data, and
+this is what you must save (not the <b>pcre[16]_extra</b> block itself). The
+length of the study data can be obtained by calling <b>pcre[16]_fullinfo()</b>
+with an argument of PCRE_INFO_STUDYSIZE. Remember to check that
+<b>pcre[16]_study()</b> did return a non-NULL value before trying to save the
+study data.
+</P>
+<br><a name="SEC3" href="#TOC1">RE-USING A PRECOMPILED PATTERN</a><br>
+<P>
+Re-using a precompiled pattern is straightforward. Having reloaded it into main
+memory, called <b>pcre[16]_pattern_to_host_byte_order()</b> if necessary,
+you pass its pointer to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b> in
+the usual way.
+</P>
+<P>
+However, if you passed a pointer to custom character tables when the pattern
+was compiled (the <i>tableptr</i> argument of <b>pcre[16]_compile()</b>), you
+must now pass a similar pointer to <b>pcre[16]_exec()</b> or
+<b>pcre[16]_dfa_exec()</b>, because the value saved with the compiled pattern
+will obviously be nonsense. A field in a <b>pcre[16]_extra()</b> block is used
+to pass this data, as described in the
+<a href="pcreapi.html#extradata">section on matching a pattern</a>
+in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation.
+</P>
+<P>
+If you did not provide custom character tables when the pattern was compiled,
+the pointer in the compiled pattern is NULL, which causes the matching
+functions to use PCRE's internal tables. Thus, you do not need to take any
+special action at run time in this case.
+</P>
+<P>
+If you saved study data with the compiled pattern, you need to create your own
+<b>pcre[16]_extra</b> data block and set the <i>study_data</i> field to point to the
+reloaded study data. You must also set the PCRE_EXTRA_STUDY_DATA bit in the
+<i>flags</i> field to indicate that study data is present. Then pass the
+<b>pcre[16]_extra</b> block to the matching function in the usual way. If the
+pattern was studied for just-in-time optimization, that data cannot be saved,
+and so is lost by a save/restore cycle.
+</P>
+<br><a name="SEC4" href="#TOC1">COMPATIBILITY WITH DIFFERENT PCRE RELEASES</a><br>
+<P>
+In general, it is safest to recompile all saved patterns when you update to a
+new PCRE release, though not all updates actually require this.
+</P>
+<br><a name="SEC5" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC6" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 10 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcresample.html b/8.31/doc/html/pcresample.html
new file mode 100644
index 0000000..aca9184
--- /dev/null
+++ b/8.31/doc/html/pcresample.html
@@ -0,0 +1,110 @@
+<html>
+<head>
+<title>pcresample specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcresample man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+PCRE SAMPLE PROGRAM
+</b><br>
+<P>
+A simple, complete demonstration program, to get you started with using PCRE,
+is supplied in the file <i>pcredemo.c</i> in the PCRE distribution. A listing of
+this program is given in the
+<a href="pcredemo.html"><b>pcredemo</b></a>
+documentation. If you do not have a copy of the PCRE distribution, you can save
+this listing to re-create <i>pcredemo.c</i>.
+</P>
+<P>
+The demonstration program, which uses the original PCRE 8-bit library, compiles
+the regular expression that is its first argument, and matches it against the
+subject string in its second argument. No PCRE options are set, and default
+character tables are used. If matching succeeds, the program outputs the
+portion of the subject that matched, together with the contents of any captured
+substrings.
+</P>
+<P>
+If the -g option is given on the command line, the program then goes on to
+check for further matches of the same regular expression in the same subject
+string. The logic is a little bit tricky because of the possibility of matching
+an empty string. Comments in the code explain what is going on.
+</P>
+<P>
+If PCRE is installed in the standard include and library directories for your
+operating system, you should be able to compile the demonstration program using
+this command:
+<pre>
+  gcc -o pcredemo pcredemo.c -lpcre
+</pre>
+If PCRE is installed elsewhere, you may need to add additional options to the
+command line. For example, on a Unix-like system that has PCRE installed in
+<i>/usr/local</i>, you can compile the demonstration program using a command
+like this:
+<pre>
+  gcc -o pcredemo -I/usr/local/include pcredemo.c -L/usr/local/lib -lpcre
+</pre>
+In a Windows environment, if you want to statically link the program against a
+non-dll <b>pcre.a</b> file, you must uncomment the line that defines PCRE_STATIC
+before including <b>pcre.h</b>, because otherwise the <b>pcre_malloc()</b> and
+<b>pcre_free()</b> exported functions will be declared
+<b>__declspec(dllimport)</b>, with unwanted results.
+</P>
+<P>
+Once you have compiled and linked the demonstration program, you can run simple
+tests like this:
+<pre>
+  ./pcredemo 'cat|dog' 'the cat sat on the mat'
+  ./pcredemo -g 'cat|dog' 'the dog sat on the cat'
+</pre>
+Note that there is a much more comprehensive test program, called
+<a href="pcretest.html"><b>pcretest</b>,</a>
+which supports many more facilities for testing regular expressions and both
+PCRE libraries. The
+<a href="pcredemo.html"><b>pcredemo</b></a>
+program is provided as a simple coding example.
+</P>
+<P>
+If you try to run
+<a href="pcredemo.html"><b>pcredemo</b></a>
+when PCRE is not installed in the standard library directory, you may get an
+error like this on some operating systems (e.g. Solaris):
+<pre>
+  ld.so.1: a.out: fatal: libpcre.so.0: open failed: No such file or directory
+</pre>
+This is caused by the way shared library support works on those systems. You
+need to add
+<pre>
+  -R/usr/local/lib
+</pre>
+(for example) to the compile command to get round this problem.
+</P>
+<br><b>
+AUTHOR
+</b><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><b>
+REVISION
+</b><br>
+<P>
+Last updated: 10 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcrestack.html b/8.31/doc/html/pcrestack.html
new file mode 100644
index 0000000..76101b3
--- /dev/null
+++ b/8.31/doc/html/pcrestack.html
@@ -0,0 +1,225 @@
+<html>
+<head>
+<title>pcrestack specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcrestack man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+PCRE DISCUSSION OF STACK USAGE
+</b><br>
+<P>
+When you call <b>pcre[16]_exec()</b>, it makes use of an internal function
+called <b>match()</b>. This calls itself recursively at branch points in the
+pattern, in order to remember the state of the match so that it can back up and
+try a different alternative if the first one fails. As matching proceeds deeper
+and deeper into the tree of possibilities, the recursion depth increases. The
+<b>match()</b> function is also called in other circumstances, for example,
+whenever a parenthesized sub-pattern is entered, and in certain cases of
+repetition.
+</P>
+<P>
+Not all calls of <b>match()</b> increase the recursion depth; for an item such
+as a* it may be called several times at the same level, after matching
+different numbers of a's. Furthermore, in a number of cases where the result of
+the recursive call would immediately be passed back as the result of the
+current call (a "tail recursion"), the function is just restarted instead.
+</P>
+<P>
+The above comments apply when <b>pcre[16]_exec()</b> is run in its normal
+interpretive manner. If the pattern was studied with the
+PCRE_STUDY_JIT_COMPILE option, and just-in-time compiling was successful, and
+the options passed to <b>pcre[16]_exec()</b> were not incompatible, the matching
+process uses the JIT-compiled code instead of the <b>match()</b> function. In
+this case, the memory requirements are handled entirely differently. See the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation for details.
+</P>
+<P>
+The <b>pcre[16]_dfa_exec()</b> function operates in an entirely different way,
+and uses recursion only when there is a regular expression recursion or
+subroutine call in the pattern. This includes the processing of assertion and
+"once-only" subpatterns, which are handled like subroutine calls. Normally,
+these are never very deep, and the limit on the complexity of
+<b>pcre[16]_dfa_exec()</b> is controlled by the amount of workspace it is given.
+However, it is possible to write patterns with runaway infinite recursions;
+such patterns will cause <b>pcre[16]_dfa_exec()</b> to run out of stack. At
+present, there is no protection against this.
+</P>
+<P>
+The comments that follow do NOT apply to <b>pcre[16]_dfa_exec()</b>; they are
+relevant only for <b>pcre[16]_exec()</b> without the JIT optimization.
+</P>
+<br><b>
+Reducing <b>pcre[16]_exec()</b>'s stack usage
+</b><br>
+<P>
+Each time that <b>match()</b> is actually called recursively, it uses memory
+from the process stack. For certain kinds of pattern and data, very large
+amounts of stack may be needed, despite the recognition of "tail recursion".
+You can often reduce the amount of recursion, and therefore the amount of stack
+used, by modifying the pattern that is being matched. Consider, for example,
+this pattern:
+<pre>
+  ([^&#60;]|&#60;(?!inet))+
+</pre>
+It matches from wherever it starts until it encounters "&#60;inet" or the end of
+the data, and is the kind of pattern that might be used when processing an XML
+file. Each iteration of the outer parentheses matches either one character that
+is not "&#60;" or a "&#60;" that is not followed by "inet". However, each time a
+parenthesis is processed, a recursion occurs, so this formulation uses a stack
+frame for each matched character. For a long string, a lot of stack is
+required. Consider now this rewritten pattern, which matches exactly the same
+strings:
+<pre>
+  ([^&#60;]++|&#60;(?!inet))+
+</pre>
+This uses very much less stack, because runs of characters that do not contain
+"&#60;" are "swallowed" in one item inside the parentheses. Recursion happens only
+when a "&#60;" character that is not followed by "inet" is encountered (and we
+assume this is relatively rare). A possessive quantifier is used to stop any
+backtracking into the runs of non-"&#60;" characters, but that is not related to
+stack usage.
+</P>
+<P>
+This example shows that one way of avoiding stack problems when matching long
+subject strings is to write repeated parenthesized subpatterns to match more
+than one character whenever possible.
+</P>
+<br><b>
+Compiling PCRE to use heap instead of stack for <b>pcre[16]_exec()</b>
+</b><br>
+<P>
+In environments where stack memory is constrained, you might want to compile
+PCRE to use heap memory instead of stack for remembering back-up points when
+<b>pcre[16]_exec()</b> is running. This makes it run a lot more slowly, however.
+Details of how to do this are given in the
+<a href="pcrebuild.html"><b>pcrebuild</b></a>
+documentation. When built in this way, instead of using the stack, PCRE obtains
+and frees memory by calling the functions that are pointed to by the
+<b>pcre[16]_stack_malloc</b> and <b>pcre[16]_stack_free</b> variables. By
+default, these point to <b>malloc()</b> and <b>free()</b>, but you can replace
+the pointers to cause PCRE to use your own functions. Since the block sizes are
+always the same, and are always freed in reverse order, it may be possible to
+implement customized memory handlers that are more efficient than the standard
+functions.
+</P>
+<br><b>
+Limiting <b>pcre[16]_exec()</b>'s stack usage
+</b><br>
+<P>
+You can set limits on the number of times that <b>match()</b> is called, both in
+total and recursively. If a limit is exceeded, <b>pcre[16]_exec()</b> returns an
+error code. Setting suitable limits should prevent it from running out of
+stack. The default values of the limits are very large, and unlikely ever to
+operate. They can be changed when PCRE is built, and they can also be set when
+<b>pcre[16]_exec()</b> is called. For details of these interfaces, see the
+<a href="pcrebuild.html"><b>pcrebuild</b></a>
+documentation and the
+<a href="pcreapi.html#extradata">section on extra data for <b>pcre[16]_exec()</b></a>
+in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation.
+</P>
+<P>
+As a very rough rule of thumb, you should reckon on about 500 bytes per
+recursion. Thus, if you want to limit your stack usage to 8Mb, you should set
+the limit at 16000 recursions. A 64Mb stack, on the other hand, can support
+around 128000 recursions.
+</P>
+<P>
+In Unix-like environments, the <b>pcretest</b> test program has a command line
+option (<b>-S</b>) that can be used to increase the size of its stack. As long
+as the stack is large enough, another option (<b>-M</b>) can be used to find the
+smallest limits that allow a particular pattern to match a given subject
+string. This is done by calling <b>pcre[16]_exec()</b> repeatedly with different
+limits.
+</P>
+<br><b>
+Obtaining an estimate of stack usage
+</b><br>
+<P>
+The actual amount of stack used per recursion can vary quite a lot, depending
+on the compiler that was used to build PCRE and the optimization or debugging
+options that were set for it. The rule of thumb value of 500 bytes mentioned
+above may be larger or smaller than what is actually needed. A better
+approximation can be obtained by running this command:
+<pre>
+  pcretest -m -C
+</pre>
+The <b>-C</b> option causes <b>pcretest</b> to output information about the
+options with which PCRE was compiled. When <b>-m</b> is also given (before
+<b>-C</b>), information about stack use is given in a line like this:
+<pre>
+  Match recursion uses stack: approximate frame size = 640 bytes
+</pre>
+The value is approximate because some recursions need a bit more (up to perhaps
+16 more bytes).
+</P>
+<P>
+If the above command is given when PCRE is compiled to use the heap instead of
+the stack for recursion, the value that is output is the size of each block
+that is obtained from the heap.
+</P>
+<br><b>
+Changing stack size in Unix-like systems
+</b><br>
+<P>
+In Unix-like environments, there is not often a problem with the stack unless
+very long strings are involved, though the default limit on stack size varies
+from system to system. Values from 8Mb to 64Mb are common. You can find your
+default limit by running the command:
+<pre>
+  ulimit -s
+</pre>
+Unfortunately, the effect of running out of stack is often SIGSEGV, though
+sometimes a more explicit error message is given. You can normally increase the
+limit on stack size by code such as this:
+<pre>
+  struct rlimit rlim;
+  getrlimit(RLIMIT_STACK, &rlim);
+  rlim.rlim_cur = 100*1024*1024;
+  setrlimit(RLIMIT_STACK, &rlim);
+</pre>
+This reads the current limits (soft and hard) using <b>getrlimit()</b>, then
+attempts to increase the soft limit to 100Mb using <b>setrlimit()</b>. You must
+do this before calling <b>pcre[16]_exec()</b>.
+</P>
+<br><b>
+Changing stack size in Mac OS X
+</b><br>
+<P>
+Using <b>setrlimit()</b>, as described above, should also work on Mac OS X. It
+is also possible to set a stack size when linking a program. There is a
+discussion about stack sizes in Mac OS X at this web site:
+<a href="http://developer.apple.com/qa/qa2005/qa1419.html">http://developer.apple.com/qa/qa2005/qa1419.html.</a>
+</P>
+<br><b>
+AUTHOR
+</b><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><b>
+REVISION
+</b><br>
+<P>
+Last updated: 21 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcresyntax.html b/8.31/doc/html/pcresyntax.html
new file mode 100644
index 0000000..1d58392
--- /dev/null
+++ b/8.31/doc/html/pcresyntax.html
@@ -0,0 +1,519 @@
+<html>
+<head>
+<title>pcresyntax specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcresyntax man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">PCRE REGULAR EXPRESSION SYNTAX SUMMARY</a>
+<li><a name="TOC2" href="#SEC2">QUOTING</a>
+<li><a name="TOC3" href="#SEC3">CHARACTERS</a>
+<li><a name="TOC4" href="#SEC4">CHARACTER TYPES</a>
+<li><a name="TOC5" href="#SEC5">GENERAL CATEGORY PROPERTIES FOR \p and \P</a>
+<li><a name="TOC6" href="#SEC6">PCRE SPECIAL CATEGORY PROPERTIES FOR \p and \P</a>
+<li><a name="TOC7" href="#SEC7">SCRIPT NAMES FOR \p AND \P</a>
+<li><a name="TOC8" href="#SEC8">CHARACTER CLASSES</a>
+<li><a name="TOC9" href="#SEC9">QUANTIFIERS</a>
+<li><a name="TOC10" href="#SEC10">ANCHORS AND SIMPLE ASSERTIONS</a>
+<li><a name="TOC11" href="#SEC11">MATCH POINT RESET</a>
+<li><a name="TOC12" href="#SEC12">ALTERNATION</a>
+<li><a name="TOC13" href="#SEC13">CAPTURING</a>
+<li><a name="TOC14" href="#SEC14">ATOMIC GROUPS</a>
+<li><a name="TOC15" href="#SEC15">COMMENT</a>
+<li><a name="TOC16" href="#SEC16">OPTION SETTING</a>
+<li><a name="TOC17" href="#SEC17">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a>
+<li><a name="TOC18" href="#SEC18">BACKREFERENCES</a>
+<li><a name="TOC19" href="#SEC19">SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)</a>
+<li><a name="TOC20" href="#SEC20">CONDITIONAL PATTERNS</a>
+<li><a name="TOC21" href="#SEC21">BACKTRACKING CONTROL</a>
+<li><a name="TOC22" href="#SEC22">NEWLINE CONVENTIONS</a>
+<li><a name="TOC23" href="#SEC23">WHAT \R MATCHES</a>
+<li><a name="TOC24" href="#SEC24">CALLOUTS</a>
+<li><a name="TOC25" href="#SEC25">SEE ALSO</a>
+<li><a name="TOC26" href="#SEC26">AUTHOR</a>
+<li><a name="TOC27" href="#SEC27">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">PCRE REGULAR EXPRESSION SYNTAX SUMMARY</a><br>
+<P>
+The full syntax and semantics of the regular expressions that are supported by
+PCRE are described in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation. This document contains a quick-reference summary of the syntax.
+</P>
+<br><a name="SEC2" href="#TOC1">QUOTING</a><br>
+<P>
+<pre>
+  \x         where x is non-alphanumeric is a literal x
+  \Q...\E    treat enclosed characters as literal
+</PRE>
+</P>
+<br><a name="SEC3" href="#TOC1">CHARACTERS</a><br>
+<P>
+<pre>
+  \a         alarm, that is, the BEL character (hex 07)
+  \cx        "control-x", where x is any ASCII character
+  \e         escape (hex 1B)
+  \f         form feed (hex 0C)
+  \n         newline (hex 0A)
+  \r         carriage return (hex 0D)
+  \t         tab (hex 09)
+  \ddd       character with octal code ddd, or backreference
+  \xhh       character with hex code hh
+  \x{hhh..}  character with hex code hhh..
+</PRE>
+</P>
+<br><a name="SEC4" href="#TOC1">CHARACTER TYPES</a><br>
+<P>
+<pre>
+  .          any character except newline;
+               in dotall mode, any character whatsoever
+  \C         one data unit, even in UTF mode (best avoided)
+  \d         a decimal digit
+  \D         a character that is not a decimal digit
+  \h         a horizontal white space character
+  \H         a character that is not a horizontal white space character
+  \N         a character that is not a newline
+  \p{<i>xx</i>}     a character with the <i>xx</i> property
+  \P{<i>xx</i>}     a character without the <i>xx</i> property
+  \R         a newline sequence
+  \s         a white space character
+  \S         a character that is not a white space character
+  \v         a vertical white space character
+  \V         a character that is not a vertical white space character
+  \w         a "word" character
+  \W         a "non-word" character
+  \X         an extended Unicode sequence
+</pre>
+In PCRE, by default, \d, \D, \s, \S, \w, and \W recognize only ASCII
+characters, even in a UTF mode. However, this can be changed by setting the
+PCRE_UCP option.
+</P>
+<br><a name="SEC5" href="#TOC1">GENERAL CATEGORY PROPERTIES FOR \p and \P</a><br>
+<P>
+<pre>
+  C          Other
+  Cc         Control
+  Cf         Format
+  Cn         Unassigned
+  Co         Private use
+  Cs         Surrogate
+
+  L          Letter
+  Ll         Lower case letter
+  Lm         Modifier letter
+  Lo         Other letter
+  Lt         Title case letter
+  Lu         Upper case letter
+  L&         Ll, Lu, or Lt
+
+  M          Mark
+  Mc         Spacing mark
+  Me         Enclosing mark
+  Mn         Non-spacing mark
+
+  N          Number
+  Nd         Decimal number
+  Nl         Letter number
+  No         Other number
+
+  P          Punctuation
+  Pc         Connector punctuation
+  Pd         Dash punctuation
+  Pe         Close punctuation
+  Pf         Final punctuation
+  Pi         Initial punctuation
+  Po         Other punctuation
+  Ps         Open punctuation
+
+  S          Symbol
+  Sc         Currency symbol
+  Sk         Modifier symbol
+  Sm         Mathematical symbol
+  So         Other symbol
+
+  Z          Separator
+  Zl         Line separator
+  Zp         Paragraph separator
+  Zs         Space separator
+</PRE>
+</P>
+<br><a name="SEC6" href="#TOC1">PCRE SPECIAL CATEGORY PROPERTIES FOR \p and \P</a><br>
+<P>
+<pre>
+  Xan        Alphanumeric: union of properties L and N
+  Xps        POSIX space: property Z or tab, NL, VT, FF, CR
+  Xsp        Perl space: property Z or tab, NL, FF, CR
+  Xwd        Perl word: property Xan or underscore
+</PRE>
+</P>
+<br><a name="SEC7" href="#TOC1">SCRIPT NAMES FOR \p AND \P</a><br>
+<P>
+Arabic,
+Armenian,
+Avestan,
+Balinese,
+Bamum,
+Batak,
+Bengali,
+Bopomofo,
+Brahmi,
+Braille,
+Buginese,
+Buhid,
+Canadian_Aboriginal,
+Carian,
+Chakma,
+Cham,
+Cherokee,
+Common,
+Coptic,
+Cuneiform,
+Cypriot,
+Cyrillic,
+Deseret,
+Devanagari,
+Egyptian_Hieroglyphs,
+Ethiopic,
+Georgian,
+Glagolitic,
+Gothic,
+Greek,
+Gujarati,
+Gurmukhi,
+Han,
+Hangul,
+Hanunoo,
+Hebrew,
+Hiragana,
+Imperial_Aramaic,
+Inherited,
+Inscriptional_Pahlavi,
+Inscriptional_Parthian,
+Javanese,
+Kaithi,
+Kannada,
+Katakana,
+Kayah_Li,
+Kharoshthi,
+Khmer,
+Lao,
+Latin,
+Lepcha,
+Limbu,
+Linear_B,
+Lisu,
+Lycian,
+Lydian,
+Malayalam,
+Mandaic,
+Meetei_Mayek,
+Meroitic_Cursive,
+Meroitic_Hieroglyphs,
+Miao,
+Mongolian,
+Myanmar,
+New_Tai_Lue,
+Nko,
+Ogham,
+Old_Italic,
+Old_Persian,
+Old_South_Arabian,
+Old_Turkic,
+Ol_Chiki,
+Oriya,
+Osmanya,
+Phags_Pa,
+Phoenician,
+Rejang,
+Runic,
+Samaritan,
+Saurashtra,
+Sharada,
+Shavian,
+Sinhala,
+Sora_Sompeng,
+Sundanese,
+Syloti_Nagri,
+Syriac,
+Tagalog,
+Tagbanwa,
+Tai_Le,
+Tai_Tham,
+Tai_Viet,
+Takri,
+Tamil,
+Telugu,
+Thaana,
+Thai,
+Tibetan,
+Tifinagh,
+Ugaritic,
+Vai,
+Yi.
+</P>
+<br><a name="SEC8" href="#TOC1">CHARACTER CLASSES</a><br>
+<P>
+<pre>
+  [...]       positive character class
+  [^...]      negative character class
+  [x-y]       range (can be used for hex characters)
+  [[:xxx:]]   positive POSIX named set
+  [[:^xxx:]]  negative POSIX named set
+
+  alnum       alphanumeric
+  alpha       alphabetic
+  ascii       0-127
+  blank       space or tab
+  cntrl       control character
+  digit       decimal digit
+  graph       printing, excluding space
+  lower       lower case letter
+  print       printing, including space
+  punct       printing, excluding alphanumeric
+  space       white space
+  upper       upper case letter
+  word        same as \w
+  xdigit      hexadecimal digit
+</pre>
+In PCRE, POSIX character set names recognize only ASCII characters by default,
+but some of them use Unicode properties if PCRE_UCP is set. You can use
+\Q...\E inside a character class.
+</P>
+<br><a name="SEC9" href="#TOC1">QUANTIFIERS</a><br>
+<P>
+<pre>
+  ?           0 or 1, greedy
+  ?+          0 or 1, possessive
+  ??          0 or 1, lazy
+  *           0 or more, greedy
+  *+          0 or more, possessive
+  *?          0 or more, lazy
+  +           1 or more, greedy
+  ++          1 or more, possessive
+  +?          1 or more, lazy
+  {n}         exactly n
+  {n,m}       at least n, no more than m, greedy
+  {n,m}+      at least n, no more than m, possessive
+  {n,m}?      at least n, no more than m, lazy
+  {n,}        n or more, greedy
+  {n,}+       n or more, possessive
+  {n,}?       n or more, lazy
+</PRE>
+</P>
+<br><a name="SEC10" href="#TOC1">ANCHORS AND SIMPLE ASSERTIONS</a><br>
+<P>
+<pre>
+  \b          word boundary
+  \B          not a word boundary
+  ^           start of subject
+               also after internal newline in multiline mode
+  \A          start of subject
+  $           end of subject
+               also before newline at end of subject
+               also before internal newline in multiline mode
+  \Z          end of subject
+               also before newline at end of subject
+  \z          end of subject
+  \G          first matching position in subject
+</PRE>
+</P>
+<br><a name="SEC11" href="#TOC1">MATCH POINT RESET</a><br>
+<P>
+<pre>
+  \K          reset start of match
+</PRE>
+</P>
+<br><a name="SEC12" href="#TOC1">ALTERNATION</a><br>
+<P>
+<pre>
+  expr|expr|expr...
+</PRE>
+</P>
+<br><a name="SEC13" href="#TOC1">CAPTURING</a><br>
+<P>
+<pre>
+  (...)           capturing group
+  (?&#60;name&#62;...)    named capturing group (Perl)
+  (?'name'...)    named capturing group (Perl)
+  (?P&#60;name&#62;...)   named capturing group (Python)
+  (?:...)         non-capturing group
+  (?|...)         non-capturing group; reset group numbers for
+                   capturing groups in each alternative
+</PRE>
+</P>
+<br><a name="SEC14" href="#TOC1">ATOMIC GROUPS</a><br>
+<P>
+<pre>
+  (?&#62;...)         atomic, non-capturing group
+</PRE>
+</P>
+<br><a name="SEC15" href="#TOC1">COMMENT</a><br>
+<P>
+<pre>
+  (?#....)        comment (not nestable)
+</PRE>
+</P>
+<br><a name="SEC16" href="#TOC1">OPTION SETTING</a><br>
+<P>
+<pre>
+  (?i)            caseless
+  (?J)            allow duplicate names
+  (?m)            multiline
+  (?s)            single line (dotall)
+  (?U)            default ungreedy (lazy)
+  (?x)            extended (ignore white space)
+  (?-...)         unset option(s)
+</pre>
+The following are recognized only at the start of a pattern or after one of the
+newline-setting options with similar syntax:
+<pre>
+  (*NO_START_OPT) no start-match optimization (PCRE_NO_START_OPTIMIZE)
+  (*UTF8)         set UTF-8 mode: 8-bit library (PCRE_UTF8)
+  (*UTF16)        set UTF-16 mode: 16-bit library (PCRE_UTF16)
+  (*UCP)          set PCRE_UCP (use Unicode properties for \d etc)
+</PRE>
+</P>
+<br><a name="SEC17" href="#TOC1">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a><br>
+<P>
+<pre>
+  (?=...)         positive look ahead
+  (?!...)         negative look ahead
+  (?&#60;=...)        positive look behind
+  (?&#60;!...)        negative look behind
+</pre>
+Each top-level branch of a look behind must be of a fixed length.
+</P>
+<br><a name="SEC18" href="#TOC1">BACKREFERENCES</a><br>
+<P>
+<pre>
+  \n              reference by number (can be ambiguous)
+  \gn             reference by number
+  \g{n}           reference by number
+  \g{-n}          relative reference by number
+  \k&#60;name&#62;        reference by name (Perl)
+  \k'name'        reference by name (Perl)
+  \g{name}        reference by name (Perl)
+  \k{name}        reference by name (.NET)
+  (?P=name)       reference by name (Python)
+</PRE>
+</P>
+<br><a name="SEC19" href="#TOC1">SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)</a><br>
+<P>
+<pre>
+  (?R)            recurse whole pattern
+  (?n)            call subpattern by absolute number
+  (?+n)           call subpattern by relative number
+  (?-n)           call subpattern by relative number
+  (?&name)        call subpattern by name (Perl)
+  (?P&#62;name)       call subpattern by name (Python)
+  \g&#60;name&#62;        call subpattern by name (Oniguruma)
+  \g'name'        call subpattern by name (Oniguruma)
+  \g&#60;n&#62;           call subpattern by absolute number (Oniguruma)
+  \g'n'           call subpattern by absolute number (Oniguruma)
+  \g&#60;+n&#62;          call subpattern by relative number (PCRE extension)
+  \g'+n'          call subpattern by relative number (PCRE extension)
+  \g&#60;-n&#62;          call subpattern by relative number (PCRE extension)
+  \g'-n'          call subpattern by relative number (PCRE extension)
+</PRE>
+</P>
+<br><a name="SEC20" href="#TOC1">CONDITIONAL PATTERNS</a><br>
+<P>
+<pre>
+  (?(condition)yes-pattern)
+  (?(condition)yes-pattern|no-pattern)
+
+  (?(n)...        absolute reference condition
+  (?(+n)...       relative reference condition
+  (?(-n)...       relative reference condition
+  (?(&#60;name&#62;)...   named reference condition (Perl)
+  (?('name')...   named reference condition (Perl)
+  (?(name)...     named reference condition (PCRE)
+  (?(R)...        overall recursion condition
+  (?(Rn)...       specific group recursion condition
+  (?(R&name)...   specific recursion condition
+  (?(DEFINE)...   define subpattern for reference
+  (?(assert)...   assertion condition
+</PRE>
+</P>
+<br><a name="SEC21" href="#TOC1">BACKTRACKING CONTROL</a><br>
+<P>
+The following act immediately they are reached:
+<pre>
+  (*ACCEPT)       force successful match
+  (*FAIL)         force backtrack; synonym (*F)
+  (*MARK:NAME)    set name to be passed back; synonym (*:NAME)
+</pre>
+The following act only when a subsequent match failure causes a backtrack to
+reach them. They all force a match failure, but they differ in what happens
+afterwards. Those that advance the start-of-match point do so only if the
+pattern is not anchored.
+<pre>
+  (*COMMIT)       overall failure, no advance of starting point
+  (*PRUNE)        advance to next starting character
+  (*PRUNE:NAME)   equivalent to (*MARK:NAME)(*PRUNE)
+  (*SKIP)         advance to current matching position
+  (*SKIP:NAME)    advance to position corresponding to an earlier
+                  (*MARK:NAME); if not found, the (*SKIP) is ignored
+  (*THEN)         local failure, backtrack to next alternation
+  (*THEN:NAME)    equivalent to (*MARK:NAME)(*THEN)
+</PRE>
+</P>
+<br><a name="SEC22" href="#TOC1">NEWLINE CONVENTIONS</a><br>
+<P>
+These are recognized only at the very start of the pattern or after a
+(*BSR_...), (*UTF8), (*UTF16) or (*UCP) option.
+<pre>
+  (*CR)           carriage return only
+  (*LF)           linefeed only
+  (*CRLF)         carriage return followed by linefeed
+  (*ANYCRLF)      all three of the above
+  (*ANY)          any Unicode newline sequence
+</PRE>
+</P>
+<br><a name="SEC23" href="#TOC1">WHAT \R MATCHES</a><br>
+<P>
+These are recognized only at the very start of the pattern or after a
+(*...) option that sets the newline convention or a UTF or UCP mode.
+<pre>
+  (*BSR_ANYCRLF)  CR, LF, or CRLF
+  (*BSR_UNICODE)  any Unicode newline sequence
+</PRE>
+</P>
+<br><a name="SEC24" href="#TOC1">CALLOUTS</a><br>
+<P>
+<pre>
+  (?C)      callout
+  (?Cn)     callout with data n
+</PRE>
+</P>
+<br><a name="SEC25" href="#TOC1">SEE ALSO</a><br>
+<P>
+<b>pcrepattern</b>(3), <b>pcreapi</b>(3), <b>pcrecallout</b>(3),
+<b>pcrematching</b>(3), <b>pcre</b>(3).
+</P>
+<br><a name="SEC26" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC27" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 10 January 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcretest.html b/8.31/doc/html/pcretest.html
new file mode 100644
index 0000000..0c6195f
--- /dev/null
+++ b/8.31/doc/html/pcretest.html
@@ -0,0 +1,965 @@
+<html>
+<head>
+<title>pcretest specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcretest man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<ul>
+<li><a name="TOC1" href="#SEC1">SYNOPSIS</a>
+<li><a name="TOC2" href="#SEC2">PCRE's 8-BIT and 16-BIT LIBRARIES</a>
+<li><a name="TOC3" href="#SEC3">COMMAND LINE OPTIONS</a>
+<li><a name="TOC4" href="#SEC4">DESCRIPTION</a>
+<li><a name="TOC5" href="#SEC5">PATTERN MODIFIERS</a>
+<li><a name="TOC6" href="#SEC6">DATA LINES</a>
+<li><a name="TOC7" href="#SEC7">THE ALTERNATIVE MATCHING FUNCTION</a>
+<li><a name="TOC8" href="#SEC8">DEFAULT OUTPUT FROM PCRETEST</a>
+<li><a name="TOC9" href="#SEC9">OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION</a>
+<li><a name="TOC10" href="#SEC10">RESTARTING AFTER A PARTIAL MATCH</a>
+<li><a name="TOC11" href="#SEC11">CALLOUTS</a>
+<li><a name="TOC12" href="#SEC12">NON-PRINTING CHARACTERS</a>
+<li><a name="TOC13" href="#SEC13">SAVING AND RELOADING COMPILED PATTERNS</a>
+<li><a name="TOC14" href="#SEC14">SEE ALSO</a>
+<li><a name="TOC15" href="#SEC15">AUTHOR</a>
+<li><a name="TOC16" href="#SEC16">REVISION</a>
+</ul>
+<br><a name="SEC1" href="#TOC1">SYNOPSIS</a><br>
+<P>
+<b>pcretest [options] [input file [output file]]</b>
+<br>
+<br>
+<b>pcretest</b> was written as a test program for the PCRE regular expression
+library itself, but it can also be used for experimenting with regular
+expressions. This document describes the features of the test program; for
+details of the regular expressions themselves, see the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation. For details of the PCRE library function calls and their
+options, see the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+and
+<a href="pcre16.html"><b>pcre16</b></a>
+documentation. The input for <b>pcretest</b> is a sequence of regular expression
+patterns and strings to be matched, as described below. The output shows the
+result of each match. Options on the command line and the patterns control PCRE
+options and exactly what is output.
+</P>
+<br><a name="SEC2" href="#TOC1">PCRE's 8-BIT and 16-BIT LIBRARIES</a><br>
+<P>
+From release 8.30, two separate PCRE libraries can be built. The original one
+supports 8-bit character strings, whereas the newer 16-bit library supports
+character strings encoded in 16-bit units. The <b>pcretest</b> program can be
+used to test both libraries. However, it is itself still an 8-bit program,
+reading 8-bit input and writing 8-bit output. When testing the 16-bit library,
+the patterns and data strings are converted to 16-bit format before being
+passed to the PCRE library functions. Results are converted to 8-bit for
+output.
+</P>
+<P>
+References to functions and structures of the form <b>pcre[16]_xx</b> below
+mean "<b>pcre_xx</b> when using the 8-bit library or <b>pcre16_xx</b> when using
+the 16-bit library".
+</P>
+<br><a name="SEC3" href="#TOC1">COMMAND LINE OPTIONS</a><br>
+<P>
+<b>-16</b>
+If both the 8-bit and the 16-bit libraries have been built, this option causes
+the 16-bit library to be used. If only the 16-bit library has been built, this
+is the default (so has no effect). If only the 8-bit library has been built,
+this option causes an error.
+</P>
+<P>
+<b>-b</b>
+Behave as if each pattern has the <b>/B</b> (show byte code) modifier; the
+internal form is output after compilation.
+</P>
+<P>
+<b>-C</b>
+Output the version number of the PCRE library, and all available information
+about the optional features that are included, and then exit. All other options
+are ignored.
+</P>
+<P>
+<b>-C</b> <i>option</i>
+Output information about a specific build-time option, then exit. This
+functionality is intended for use in scripts such as <b>RunTest</b>. The
+following options output the value indicated:
+<pre>
+  linksize   the internal link size (2, 3, or 4)
+  newline    the default newline setting:
+               CR, LF, CRLF, ANYCRLF, or ANY
+</pre>
+The following options output 1 for true or zero for false:
+<pre>
+  jit        just-in-time support is available
+  pcre16     the 16-bit library was built
+  pcre8      the 8-bit library was built
+  ucp        Unicode property support is available
+  utf        UTF-8 and/or UTF-16 support is available
+</PRE>
+</P>
+<P>
+<b>-d</b>
+Behave as if each pattern has the <b>/D</b> (debug) modifier; the internal
+form and information about the compiled pattern is output after compilation;
+<b>-d</b> is equivalent to <b>-b -i</b>.
+</P>
+<P>
+<b>-dfa</b>
+Behave as if each data line contains the \D escape sequence; this causes the
+alternative matching function, <b>pcre[16]_dfa_exec()</b>, to be used instead of
+the standard <b>pcre[16]_exec()</b> function (more detail is given below).
+</P>
+<P>
+<b>-help</b>
+Output a brief summary these options and then exit.
+</P>
+<P>
+<b>-i</b>
+Behave as if each pattern has the <b>/I</b> modifier; information about the
+compiled pattern is given after compilation.
+</P>
+<P>
+<b>-M</b>
+Behave as if each data line contains the \M escape sequence; this causes
+PCRE to discover the minimum MATCH_LIMIT and MATCH_LIMIT_RECURSION settings by
+calling <b>pcre[16]_exec()</b> repeatedly with different limits.
+</P>
+<P>
+<b>-m</b>
+Output the size of each compiled pattern after it has been compiled. This is
+equivalent to adding <b>/M</b> to each regular expression. The size is given in
+bytes for both libraries.
+</P>
+<P>
+<b>-o</b> <i>osize</i>
+Set the number of elements in the output vector that is used when calling
+<b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b> to be <i>osize</i>. The
+default value is 45, which is enough for 14 capturing subexpressions for
+<b>pcre[16]_exec()</b> or 22 different matches for <b>pcre[16]_dfa_exec()</b>.
+The vector size can be changed for individual matching calls by including \O
+in the data line (see below).
+</P>
+<P>
+<b>-p</b>
+Behave as if each pattern has the <b>/P</b> modifier; the POSIX wrapper API is
+used to call PCRE. None of the other options has any effect when <b>-p</b> is
+set. This option can be used only with the 8-bit library.
+</P>
+<P>
+<b>-q</b>
+Do not output the version number of <b>pcretest</b> at the start of execution.
+</P>
+<P>
+<b>-S</b> <i>size</i>
+On Unix-like systems, set the size of the run-time stack to <i>size</i>
+megabytes.
+</P>
+<P>
+<b>-s</b> or <b>-s+</b>
+Behave as if each pattern has the <b>/S</b> modifier; in other words, force each
+pattern to be studied. If <b>-s+</b> is used, all the JIT compile options are
+passed to <b>pcre[16]_study()</b>, causing just-in-time optimization to be set
+up if it is available, for both full and partial matching. Specific JIT compile
+options can be selected by following <b>-s+</b> with a digit in the range 1 to
+7, which selects the JIT compile modes as follows:
+<pre>
+  1  normal match only
+  2  soft partial match only
+  3  normal match and soft partial match
+  4  hard partial match only
+  6  soft and hard partial match
+  7  all three modes (default)
+</pre>
+If <b>-s++</b> is used instead of <b>-s+</b> (with or without a following digit),
+the text "(JIT)" is added to the first output line after a match or no match
+when JIT-compiled code was actually used.
+</P>
+<P>
+If the <b>/I</b> or <b>/D</b> option is present on a pattern (requesting output
+about the compiled pattern), information about the result of studying is not
+included when studying is caused only by <b>-s</b> and neither <b>-i</b> nor
+<b>-d</b> is present on the command line. This behaviour means that the output
+from tests that are run with and without <b>-s</b> should be identical, except
+when options that output information about the actual running of a match are
+set.
+<br>
+<br>
+The <b>-M</b>, <b>-t</b>, and <b>-tm</b> options, which give information about
+resources used, are likely to produce different output with and without
+<b>-s</b>. Output may also differ if the <b>/C</b> option is present on an
+individual pattern. This uses callouts to trace the the matching process, and
+this may be different between studied and non-studied patterns. If the pattern
+contains (*MARK) items there may also be differences, for the same reason. The
+<b>-s</b> command line option can be overridden for specific patterns that
+should never be studied (see the <b>/S</b> pattern modifier below).
+</P>
+<P>
+<b>-t</b>
+Run each compile, study, and match many times with a timer, and output
+resulting time per compile or match (in milliseconds). Do not set <b>-m</b> with
+<b>-t</b>, because you will then get the size output a zillion times, and the
+timing will be distorted. You can control the number of iterations that are
+used for timing by following <b>-t</b> with a number (as a separate item on the
+command line). For example, "-t 1000" would iterate 1000 times. The default is
+to iterate 500000 times.
+</P>
+<P>
+<b>-tm</b>
+This is like <b>-t</b> except that it times only the matching phase, not the
+compile or study phases.
+</P>
+<br><a name="SEC4" href="#TOC1">DESCRIPTION</a><br>
+<P>
+If <b>pcretest</b> is given two filename arguments, it reads from the first and
+writes to the second. If it is given only one filename argument, it reads from
+that file and writes to stdout. Otherwise, it reads from stdin and writes to
+stdout, and prompts for each line of input, using "re&#62;" to prompt for regular
+expressions, and "data&#62;" to prompt for data lines.
+</P>
+<P>
+When <b>pcretest</b> is built, a configuration option can specify that it should
+be linked with the <b>libreadline</b> library. When this is done, if the input
+is from a terminal, it is read using the <b>readline()</b> function. This
+provides line-editing and history facilities. The output from the <b>-help</b>
+option states whether or not <b>readline()</b> will be used.
+</P>
+<P>
+The program handles any number of sets of input on a single input file. Each
+set starts with a regular expression, and continues with any number of data
+lines to be matched against the pattern.
+</P>
+<P>
+Each data line is matched separately and independently. If you want to do
+multi-line matches, you have to use the \n escape sequence (or \r or \r\n,
+etc., depending on the newline setting) in a single line of input to encode the
+newline sequences. There is no limit on the length of data lines; the input
+buffer is automatically extended if it is too small.
+</P>
+<P>
+An empty line signals the end of the data lines, at which point a new regular
+expression is read. The regular expressions are given enclosed in any
+non-alphanumeric delimiters other than backslash, for example:
+<pre>
+  /(a|bc)x+yz/
+</pre>
+White space before the initial delimiter is ignored. A regular expression may
+be continued over several input lines, in which case the newline characters are
+included within it. It is possible to include the delimiter within the pattern
+by escaping it, for example
+<pre>
+  /abc\/def/
+</pre>
+If you do so, the escape and the delimiter form part of the pattern, but since
+delimiters are always non-alphanumeric, this does not affect its interpretation.
+If the terminating delimiter is immediately followed by a backslash, for
+example,
+<pre>
+  /abc/\
+</pre>
+then a backslash is added to the end of the pattern. This is done to provide a
+way of testing the error condition that arises if a pattern finishes with a
+backslash, because
+<pre>
+  /abc\/
+</pre>
+is interpreted as the first line of a pattern that starts with "abc/", causing
+pcretest to read the next line as a continuation of the regular expression.
+</P>
+<br><a name="SEC5" href="#TOC1">PATTERN MODIFIERS</a><br>
+<P>
+A pattern may be followed by any number of modifiers, which are mostly single
+characters. Following Perl usage, these are referred to below as, for example,
+"the <b>/i</b> modifier", even though the delimiter of the pattern need not
+always be a slash, and no slash is used when writing modifiers. White space may
+appear between the final pattern delimiter and the first modifier, and between
+the modifiers themselves.
+</P>
+<P>
+The <b>/i</b>, <b>/m</b>, <b>/s</b>, and <b>/x</b> modifiers set the PCRE_CASELESS,
+PCRE_MULTILINE, PCRE_DOTALL, or PCRE_EXTENDED options, respectively, when
+<b>pcre[16]_compile()</b> is called. These four modifier letters have the same
+effect as they do in Perl. For example:
+<pre>
+  /caseless/i
+</pre>
+The following table shows additional modifiers for setting PCRE compile-time
+options that do not correspond to anything in Perl:
+<pre>
+  <b>/8</b>              PCRE_UTF8           ) when using the 8-bit
+  <b>/?</b>              PCRE_NO_UTF8_CHECK  )   library
+
+  <b>/8</b>              PCRE_UTF16          ) when using the 16-bit
+  <b>/?</b>              PCRE_NO_UTF16_CHECK )   library
+
+  <b>/A</b>              PCRE_ANCHORED
+  <b>/C</b>              PCRE_AUTO_CALLOUT
+  <b>/E</b>              PCRE_DOLLAR_ENDONLY
+  <b>/f</b>              PCRE_FIRSTLINE
+  <b>/J</b>              PCRE_DUPNAMES
+  <b>/N</b>              PCRE_NO_AUTO_CAPTURE
+  <b>/U</b>              PCRE_UNGREEDY
+  <b>/W</b>              PCRE_UCP
+  <b>/X</b>              PCRE_EXTRA
+  <b>/Y</b>              PCRE_NO_START_OPTIMIZE
+  <b>/&#60;JS&#62;</b>           PCRE_JAVASCRIPT_COMPAT
+  <b>/&#60;cr&#62;</b>           PCRE_NEWLINE_CR
+  <b>/&#60;lf&#62;</b>           PCRE_NEWLINE_LF
+  <b>/&#60;crlf&#62;</b>         PCRE_NEWLINE_CRLF
+  <b>/&#60;anycrlf&#62;</b>      PCRE_NEWLINE_ANYCRLF
+  <b>/&#60;any&#62;</b>          PCRE_NEWLINE_ANY
+  <b>/&#60;bsr_anycrlf&#62;</b>  PCRE_BSR_ANYCRLF
+  <b>/&#60;bsr_unicode&#62;</b>  PCRE_BSR_UNICODE
+</pre>
+The modifiers that are enclosed in angle brackets are literal strings as shown,
+including the angle brackets, but the letters within can be in either case.
+This example sets multiline matching with CRLF as the line ending sequence:
+<pre>
+  /^abc/m&#60;CRLF&#62;
+</pre>
+As well as turning on the PCRE_UTF8/16 option, the <b>/8</b> modifier causes
+all non-printing characters in output strings to be printed using the
+\x{hh...} notation. Otherwise, those less than 0x100 are output in hex without
+the curly brackets.
+</P>
+<P>
+Full details of the PCRE options are given in the
+<a href="pcreapi.html"><b>pcreapi</b></a>
+documentation.
+</P>
+<br><b>
+Finding all matches in a string
+</b><br>
+<P>
+Searching for all possible matches within each subject string can be requested
+by the <b>/g</b> or <b>/G</b> modifier. After finding a match, PCRE is called
+again to search the remainder of the subject string. The difference between
+<b>/g</b> and <b>/G</b> is that the former uses the <i>startoffset</i> argument to
+<b>pcre[16]_exec()</b> to start searching at a new point within the entire
+string (which is in effect what Perl does), whereas the latter passes over a
+shortened substring. This makes a difference to the matching process if the
+pattern begins with a lookbehind assertion (including \b or \B).
+</P>
+<P>
+If any call to <b>pcre[16]_exec()</b> in a <b>/g</b> or <b>/G</b> sequence matches
+an empty string, the next call is done with the PCRE_NOTEMPTY_ATSTART and
+PCRE_ANCHORED flags set in order to search for another, non-empty, match at the
+same point. If this second match fails, the start offset is advanced, and the
+normal match is retried. This imitates the way Perl handles such cases when
+using the <b>/g</b> modifier or the <b>split()</b> function. Normally, the start
+offset is advanced by one character, but if the newline convention recognizes
+CRLF as a newline, and the current character is CR followed by LF, an advance
+of two is used.
+</P>
+<br><b>
+Other modifiers
+</b><br>
+<P>
+There are yet more modifiers for controlling the way <b>pcretest</b>
+operates.
+</P>
+<P>
+The <b>/+</b> modifier requests that as well as outputting the substring that
+matched the entire pattern, <b>pcretest</b> should in addition output the
+remainder of the subject string. This is useful for tests where the subject
+contains multiple copies of the same substring. If the <b>+</b> modifier appears
+twice, the same action is taken for captured substrings. In each case the
+remainder is output on the following line with a plus character following the
+capture number. Note that this modifier must not immediately follow the /S
+modifier because /S+ and /S++ have other meanings.
+</P>
+<P>
+The <b>/=</b> modifier requests that the values of all potential captured
+parentheses be output after a match. By default, only those up to the highest
+one actually used in the match are output (corresponding to the return code
+from <b>pcre[16]_exec()</b>). Values in the offsets vector corresponding to
+higher numbers should be set to -1, and these are output as "&#60;unset&#62;". This
+modifier gives a way of checking that this is happening.
+</P>
+<P>
+The <b>/B</b> modifier is a debugging feature. It requests that <b>pcretest</b>
+output a representation of the compiled code after compilation. Normally this
+information contains length and offset values; however, if <b>/Z</b> is also
+present, this data is replaced by spaces. This is a special feature for use in
+the automatic test scripts; it ensures that the same output is generated for
+different internal link sizes.
+</P>
+<P>
+The <b>/D</b> modifier is a PCRE debugging feature, and is equivalent to
+<b>/BI</b>, that is, both the <b>/B</b> and the <b>/I</b> modifiers.
+</P>
+<P>
+The <b>/F</b> modifier causes <b>pcretest</b> to flip the byte order of the
+2-byte and 4-byte fields in the compiled pattern. This facility is for testing
+the feature in PCRE that allows it to execute patterns that were compiled on a
+host with a different endianness. This feature is not available when the POSIX
+interface to PCRE is being used, that is, when the <b>/P</b> pattern modifier is
+specified. See also the section about saving and reloading compiled patterns
+below.
+</P>
+<P>
+The <b>/I</b> modifier requests that <b>pcretest</b> output information about the
+compiled pattern (whether it is anchored, has a fixed first character, and
+so on). It does this by calling <b>pcre[16]_fullinfo()</b> after compiling a
+pattern. If the pattern is studied, the results of that are also output.
+</P>
+<P>
+The <b>/K</b> modifier requests <b>pcretest</b> to show names from backtracking
+control verbs that are returned from calls to <b>pcre[16]_exec()</b>. It causes
+<b>pcretest</b> to create a <b>pcre[16]_extra</b> block if one has not already
+been created by a call to <b>pcre[16]_study()</b>, and to set the
+PCRE_EXTRA_MARK flag and the <b>mark</b> field within it, every time that
+<b>pcre[16]_exec()</b> is called. If the variable that the <b>mark</b> field
+points to is non-NULL for a match, non-match, or partial match, <b>pcretest</b>
+prints the string to which it points. For a match, this is shown on a line by
+itself, tagged with "MK:". For a non-match it is added to the message.
+</P>
+<P>
+The <b>/L</b> modifier must be followed directly by the name of a locale, for
+example,
+<pre>
+  /pattern/Lfr_FR
+</pre>
+For this reason, it must be the last modifier. The given locale is set,
+<b>pcre[16]_maketables()</b> is called to build a set of character tables for
+the locale, and this is then passed to <b>pcre[16]_compile()</b> when compiling
+the regular expression. Without an <b>/L</b> (or <b>/T</b>) modifier, NULL is
+passed as the tables pointer; that is, <b>/L</b> applies only to the expression
+on which it appears.
+</P>
+<P>
+The <b>/M</b> modifier causes the size in bytes of the memory block used to hold
+the compiled pattern to be output. This does not include the size of the
+<b>pcre[16]</b> block; it is just the actual compiled data. If the pattern is
+successfully studied with the PCRE_STUDY_JIT_COMPILE option, the size of the
+JIT compiled code is also output.
+</P>
+<P>
+If the <b>/S</b> modifier appears once, it causes <b>pcre[16]_study()</b> to be
+called after the expression has been compiled, and the results used when the
+expression is matched. If <b>/S</b> appears twice, it suppresses studying, even
+if it was requested externally by the <b>-s</b> command line option. This makes
+it possible to specify that certain patterns are always studied, and others are
+never studied, independently of <b>-s</b>. This feature is used in the test
+files in a few cases where the output is different when the pattern is studied.
+</P>
+<P>
+If the <b>/S</b> modifier is immediately followed by a + character, the call to
+<b>pcre[16]_study()</b> is made with all the JIT study options, requesting
+just-in-time optimization support if it is available, for both normal and
+partial matching. If you want to restrict the JIT compiling modes, you can
+follow <b>/S+</b> with a digit in the range 1 to 7:
+<pre>
+  1  normal match only
+  2  soft partial match only
+  3  normal match and soft partial match
+  4  hard partial match only
+  6  soft and hard partial match
+  7  all three modes (default)
+</pre>
+If <b>/S++</b> is used instead of <b>/S+</b> (with or without a following digit),
+the text "(JIT)" is added to the first output line after a match or no match
+when JIT-compiled code was actually used.
+</P>
+<P>
+Note that there is also an independent <b>/+</b> modifier; it must not be given
+immediately after <b>/S</b> or <b>/S+</b> because this will be misinterpreted.
+</P>
+<P>
+If JIT studying is successful, the compiled JIT code will automatically be used
+when <b>pcre[16]_exec()</b> is run, except when incompatible run-time options
+are specified. For more details, see the
+<a href="pcrejit.html"><b>pcrejit</b></a>
+documentation. See also the <b>\J</b> escape sequence below for a way of
+setting the size of the JIT stack.
+</P>
+<P>
+The <b>/T</b> modifier must be followed by a single digit. It causes a specific
+set of built-in character tables to be passed to <b>pcre[16]_compile()</b>. It
+is used in the standard PCRE tests to check behaviour with different character
+tables. The digit specifies the tables as follows:
+<pre>
+  0   the default ASCII tables, as distributed in
+        pcre_chartables.c.dist
+  1   a set of tables defining ISO 8859 characters
+</pre>
+In table 1, some characters whose codes are greater than 128 are identified as
+letters, digits, spaces, etc.
+</P>
+<br><b>
+Using the POSIX wrapper API
+</b><br>
+<P>
+The <b>/P</b> modifier causes <b>pcretest</b> to call PCRE via the POSIX wrapper
+API rather than its native API. This supports only the 8-bit library. When
+<b>/P</b> is set, the following modifiers set options for the <b>regcomp()</b>
+function:
+<pre>
+  /i    REG_ICASE
+  /m    REG_NEWLINE
+  /N    REG_NOSUB
+  /s    REG_DOTALL     )
+  /U    REG_UNGREEDY   ) These options are not part of
+  /W    REG_UCP        )   the POSIX standard
+  /8    REG_UTF8       )
+</pre>
+The <b>/+</b> modifier works as described above. All other modifiers are
+ignored.
+</P>
+<br><a name="SEC6" href="#TOC1">DATA LINES</a><br>
+<P>
+Before each data line is passed to <b>pcre[16]_exec()</b>, leading and trailing
+white space is removed, and it is then scanned for \ escapes. Some of these
+are pretty esoteric features, intended for checking out some of the more
+complicated features of PCRE. If you are just testing "ordinary" regular
+expressions, you probably don't need any of these. The following escapes are
+recognized:
+<pre>
+  \a         alarm (BEL, \x07)
+  \b         backspace (\x08)
+  \e         escape (\x27)
+  \f         form feed (\x0c)
+  \n         newline (\x0a)
+  \qdd       set the PCRE_MATCH_LIMIT limit to dd (any number of digits)
+  \r         carriage return (\x0d)
+  \t         tab (\x09)
+  \v         vertical tab (\x0b)
+  \nnn       octal character (up to 3 octal digits); always
+               a byte unless &#62; 255 in UTF-8 or 16-bit mode
+  \xhh       hexadecimal byte (up to 2 hex digits)
+  \x{hh...}  hexadecimal character (any number of hex digits)
+  \A         pass the PCRE_ANCHORED option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \B         pass the PCRE_NOTBOL option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \Cdd       call pcre[16]_copy_substring() for substring dd after a successful match (number less than 32)
+  \Cname     call pcre[16]_copy_named_substring() for substring "name" after a successful match (name termin-
+               ated by next non alphanumeric character)
+  \C+        show the current captured substrings at callout time
+  \C-        do not supply a callout function
+  \C!n       return 1 instead of 0 when callout number n is reached
+  \C!n!m     return 1 instead of 0 when callout number n is reached for the nth time
+  \C*n       pass the number n (may be negative) as callout data; this is used as the callout return value
+  \D         use the <b>pcre[16]_dfa_exec()</b> match function
+  \F         only shortest match for <b>pcre[16]_dfa_exec()</b>
+  \Gdd       call pcre[16]_get_substring() for substring dd after a successful match (number less than 32)
+  \Gname     call pcre[16]_get_named_substring() for substring "name" after a successful match (name termin-
+               ated by next non-alphanumeric character)
+  \Jdd       set up a JIT stack of dd kilobytes maximum (any number of digits)
+  \L         call pcre[16]_get_substringlist() after a successful match
+  \M         discover the minimum MATCH_LIMIT and MATCH_LIMIT_RECURSION settings
+  \N         pass the PCRE_NOTEMPTY option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>; if used twice, pass the
+               PCRE_NOTEMPTY_ATSTART option
+  \Odd       set the size of the output vector passed to <b>pcre[16]_exec()</b> to dd (any number of digits)
+  \P         pass the PCRE_PARTIAL_SOFT option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>; if used twice, pass the
+               PCRE_PARTIAL_HARD option
+  \Qdd       set the PCRE_MATCH_LIMIT_RECURSION limit to dd (any number of digits)
+  \R         pass the PCRE_DFA_RESTART option to <b>pcre[16]_dfa_exec()</b>
+  \S         output details of memory get/free calls during matching
+  \Y         pass the PCRE_NO_START_OPTIMIZE option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \Z         pass the PCRE_NOTEOL option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \?         pass the PCRE_NO_UTF[8|16]_CHECK option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \&#62;dd       start the match at offset dd (optional "-"; then any number of digits); this sets the <i>startoffset</i>
+               argument for <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \&#60;cr&#62;      pass the PCRE_NEWLINE_CR option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \&#60;lf&#62;      pass the PCRE_NEWLINE_LF option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \&#60;crlf&#62;    pass the PCRE_NEWLINE_CRLF option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \&#60;anycrlf&#62; pass the PCRE_NEWLINE_ANYCRLF option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+  \&#60;any&#62;     pass the PCRE_NEWLINE_ANY option to <b>pcre[16]_exec()</b> or <b>pcre[16]_dfa_exec()</b>
+</pre>
+The use of \x{hh...} is not dependent on the use of the <b>/8</b> modifier on
+the pattern. It is recognized always. There may be any number of hexadecimal
+digits inside the braces; invalid values provoke error messages.
+</P>
+<P>
+Note that \xhh specifies one byte rather than one character in UTF-8 mode;
+this makes it possible to construct invalid UTF-8 sequences for testing
+purposes. On the other hand, \x{hh} is interpreted as a UTF-8 character in
+UTF-8 mode, generating more than one byte if the value is greater than 127.
+When testing the 8-bit library not in UTF-8 mode, \x{hh} generates one byte
+for values less than 256, and causes an error for greater values.
+</P>
+<P>
+In UTF-16 mode, all 4-digit \x{hhhh} values are accepted. This makes it
+possible to construct invalid UTF-16 sequences for testing purposes.
+</P>
+<P>
+The escapes that specify line ending sequences are literal strings, exactly as
+shown. No more than one newline setting should be present in any data line.
+</P>
+<P>
+A backslash followed by anything else just escapes the anything else. If
+the very last character is a backslash, it is ignored. This gives a way of
+passing an empty line as data, since a real empty line terminates the data
+input.
+</P>
+<P>
+The <b>\J</b> escape provides a way of setting the maximum stack size that is
+used by the just-in-time optimization code. It is ignored if JIT optimization
+is not being used. Providing a stack that is larger than the default 32K is
+necessary only for very complicated patterns.
+</P>
+<P>
+If \M is present, <b>pcretest</b> calls <b>pcre[16]_exec()</b> several times,
+with different values in the <i>match_limit</i> and <i>match_limit_recursion</i>
+fields of the <b>pcre[16]_extra</b> data structure, until it finds the minimum
+numbers for each parameter that allow <b>pcre[16]_exec()</b> to complete without
+error. Because this is testing a specific feature of the normal interpretive
+<b>pcre[16]_exec()</b> execution, the use of any JIT optimization that might
+have been set up by the <b>/S+</b> qualifier of <b>-s+</b> option is disabled.
+</P>
+<P>
+The <i>match_limit</i> number is a measure of the amount of backtracking
+that takes place, and checking it out can be instructive. For most simple
+matches, the number is quite small, but for patterns with very large numbers of
+matching possibilities, it can become large very quickly with increasing length
+of subject string. The <i>match_limit_recursion</i> number is a measure of how
+much stack (or, if PCRE is compiled with NO_RECURSE, how much heap) memory is
+needed to complete the match attempt.
+</P>
+<P>
+When \O is used, the value specified may be higher or lower than the size set
+by the <b>-O</b> command line option (or defaulted to 45); \O applies only to
+the call of <b>pcre[16]_exec()</b> for the line in which it appears.
+</P>
+<P>
+If the <b>/P</b> modifier was present on the pattern, causing the POSIX wrapper
+API to be used, the only option-setting sequences that have any effect are \B,
+\N, and \Z, causing REG_NOTBOL, REG_NOTEMPTY, and REG_NOTEOL, respectively,
+to be passed to <b>regexec()</b>.
+</P>
+<br><a name="SEC7" href="#TOC1">THE ALTERNATIVE MATCHING FUNCTION</a><br>
+<P>
+By default, <b>pcretest</b> uses the standard PCRE matching function,
+<b>pcre[16]_exec()</b> to match each data line. PCRE also supports an
+alternative matching function, <b>pcre[16]_dfa_test()</b>, which operates in a
+different way, and has some restrictions. The differences between the two
+functions are described in the
+<a href="pcrematching.html"><b>pcrematching</b></a>
+documentation.
+</P>
+<P>
+If a data line contains the \D escape sequence, or if the command line
+contains the <b>-dfa</b> option, the alternative matching function is used.
+This function finds all possible matches at a given point. If, however, the \F
+escape sequence is present in the data line, it stops after the first match is
+found. This is always the shortest possible match.
+</P>
+<br><a name="SEC8" href="#TOC1">DEFAULT OUTPUT FROM PCRETEST</a><br>
+<P>
+This section describes the output when the normal matching function,
+<b>pcre[16]_exec()</b>, is being used.
+</P>
+<P>
+When a match succeeds, <b>pcretest</b> outputs the list of captured substrings
+that <b>pcre[16]_exec()</b> returns, starting with number 0 for the string that
+matched the whole pattern. Otherwise, it outputs "No match" when the return is
+PCRE_ERROR_NOMATCH, and "Partial match:" followed by the partially matching
+substring when <b>pcre[16]_exec()</b> returns PCRE_ERROR_PARTIAL. (Note that
+this is the entire substring that was inspected during the partial match; it
+may include characters before the actual match start if a lookbehind assertion,
+\K, \b, or \B was involved.) For any other return, <b>pcretest</b> outputs
+the PCRE negative error number and a short descriptive phrase. If the error is
+a failed UTF string check, the offset of the start of the failing character and
+the reason code are also output, provided that the size of the output vector is
+at least two. Here is an example of an interactive <b>pcretest</b> run.
+<pre>
+  $ pcretest
+  PCRE version 8.13 2011-04-30
+
+    re&#62; /^abc(\d+)/
+  data&#62; abc123
+   0: abc123
+   1: 123
+  data&#62; xyz
+  No match
+</pre>
+Unset capturing substrings that are not followed by one that is set are not
+returned by <b>pcre[16]_exec()</b>, and are not shown by <b>pcretest</b>. In the
+following example, there are two capturing substrings, but when the first data
+line is matched, the second, unset substring is not shown. An "internal" unset
+substring is shown as "&#60;unset&#62;", as for the second data line.
+<pre>
+    re&#62; /(a)|(b)/
+  data&#62; a
+   0: a
+   1: a
+  data&#62; b
+   0: b
+   1: &#60;unset&#62;
+   2: b
+</pre>
+If the strings contain any non-printing characters, they are output as \xhh
+escapes if the value is less than 256 and UTF mode is not set. Otherwise they
+are output as \x{hh...} escapes. See below for the definition of non-printing
+characters. If the pattern has the <b>/+</b> modifier, the output for substring
+0 is followed by the the rest of the subject string, identified by "0+" like
+this:
+<pre>
+    re&#62; /cat/+
+  data&#62; cataract
+   0: cat
+   0+ aract
+</pre>
+If the pattern has the <b>/g</b> or <b>/G</b> modifier, the results of successive
+matching attempts are output in sequence, like this:
+<pre>
+    re&#62; /\Bi(\w\w)/g
+  data&#62; Mississippi
+   0: iss
+   1: ss
+   0: iss
+   1: ss
+   0: ipp
+   1: pp
+</pre>
+"No match" is output only if the first match attempt fails. Here is an example
+of a failure message (the offset 4 that is specified by \&#62;4 is past the end of
+the subject string):
+<pre>
+    re&#62; /xyz/
+  data&#62; xyz\&#62;4
+  Error -24 (bad offset value)
+</PRE>
+</P>
+<P>
+If any of the sequences <b>\C</b>, <b>\G</b>, or <b>\L</b> are present in a
+data line that is successfully matched, the substrings extracted by the
+convenience functions are output with C, G, or L after the string number
+instead of a colon. This is in addition to the normal full list. The string
+length (that is, the return from the extraction function) is given in
+parentheses after each string for <b>\C</b> and <b>\G</b>.
+</P>
+<P>
+Note that whereas patterns can be continued over several lines (a plain "&#62;"
+prompt is used for continuations), data lines may not. However newlines can be
+included in data by means of the \n escape (or \r, \r\n, etc., depending on
+the newline sequence setting).
+</P>
+<br><a name="SEC9" href="#TOC1">OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION</a><br>
+<P>
+When the alternative matching function, <b>pcre[16]_dfa_exec()</b>, is used (by
+means of the \D escape sequence or the <b>-dfa</b> command line option), the
+output consists of a list of all the matches that start at the first point in
+the subject where there is at least one match. For example:
+<pre>
+    re&#62; /(tang|tangerine|tan)/
+  data&#62; yellow tangerine\D
+   0: tangerine
+   1: tang
+   2: tan
+</pre>
+(Using the normal matching function on this data finds only "tang".) The
+longest matching string is always given first (and numbered zero). After a
+PCRE_ERROR_PARTIAL return, the output is "Partial match:", followed by the
+partially matching substring. (Note that this is the entire substring that was
+inspected during the partial match; it may include characters before the actual
+match start if a lookbehind assertion, \K, \b, or \B was involved.)
+</P>
+<P>
+If <b>/g</b> is present on the pattern, the search for further matches resumes
+at the end of the longest match. For example:
+<pre>
+    re&#62; /(tang|tangerine|tan)/g
+  data&#62; yellow tangerine and tangy sultana\D
+   0: tangerine
+   1: tang
+   2: tan
+   0: tang
+   1: tan
+   0: tan
+</pre>
+Since the matching function does not support substring capture, the escape
+sequences that are concerned with captured substrings are not relevant.
+</P>
+<br><a name="SEC10" href="#TOC1">RESTARTING AFTER A PARTIAL MATCH</a><br>
+<P>
+When the alternative matching function has given the PCRE_ERROR_PARTIAL return,
+indicating that the subject partially matched the pattern, you can restart the
+match with additional subject data by means of the \R escape sequence. For
+example:
+<pre>
+    re&#62; /^\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d$/
+  data&#62; 23ja\P\D
+  Partial match: 23ja
+  data&#62; n05\R\D
+   0: n05
+</pre>
+For further information about partial matching, see the
+<a href="pcrepartial.html"><b>pcrepartial</b></a>
+documentation.
+</P>
+<br><a name="SEC11" href="#TOC1">CALLOUTS</a><br>
+<P>
+If the pattern contains any callout requests, <b>pcretest</b>'s callout function
+is called during matching. This works with both matching functions. By default,
+the called function displays the callout number, the start and current
+positions in the text at the callout time, and the next pattern item to be
+tested. For example:
+<pre>
+  ---&#62;pqrabcdef
+    0    ^  ^     \d
+</pre>
+This output indicates that callout number 0 occurred for a match attempt
+starting at the fourth character of the subject string, when the pointer was at
+the seventh character of the data, and when the next pattern item was \d. Just
+one circumflex is output if the start and current positions are the same.
+</P>
+<P>
+Callouts numbered 255 are assumed to be automatic callouts, inserted as a
+result of the <b>/C</b> pattern modifier. In this case, instead of showing the
+callout number, the offset in the pattern, preceded by a plus, is output. For
+example:
+<pre>
+    re&#62; /\d?[A-E]\*/C
+  data&#62; E*
+  ---&#62;E*
+   +0 ^      \d?
+   +3 ^      [A-E]
+   +8 ^^     \*
+  +10 ^ ^
+   0: E*
+</pre>
+If a pattern contains (*MARK) items, an additional line is output whenever
+a change of latest mark is passed to the callout function. For example:
+<pre>
+    re&#62; /a(*MARK:X)bc/C
+  data&#62; abc
+  ---&#62;abc
+   +0 ^       a
+   +1 ^^      (*MARK:X)
+  +10 ^^      b
+  Latest Mark: X
+  +11 ^ ^     c
+  +12 ^  ^
+   0: abc
+</pre>
+The mark changes between matching "a" and "b", but stays the same for the rest
+of the match, so nothing more is output. If, as a result of backtracking, the
+mark reverts to being unset, the text "&#60;unset&#62;" is output.
+</P>
+<P>
+The callout function in <b>pcretest</b> returns zero (carry on matching) by
+default, but you can use a \C item in a data line (as described above) to
+change this and other parameters of the callout.
+</P>
+<P>
+Inserting callouts can be helpful when using <b>pcretest</b> to check
+complicated regular expressions. For further information about callouts, see
+the
+<a href="pcrecallout.html"><b>pcrecallout</b></a>
+documentation.
+</P>
+<br><a name="SEC12" href="#TOC1">NON-PRINTING CHARACTERS</a><br>
+<P>
+When <b>pcretest</b> is outputting text in the compiled version of a pattern,
+bytes other than 32-126 are always treated as non-printing characters are are
+therefore shown as hex escapes.
+</P>
+<P>
+When <b>pcretest</b> is outputting text that is a matched part of a subject
+string, it behaves in the same way, unless a different locale has been set for
+the pattern (using the <b>/L</b> modifier). In this case, the <b>isprint()</b>
+function to distinguish printing and non-printing characters.
+</P>
+<br><a name="SEC13" href="#TOC1">SAVING AND RELOADING COMPILED PATTERNS</a><br>
+<P>
+The facilities described in this section are not available when the POSIX
+interface to PCRE is being used, that is, when the <b>/P</b> pattern modifier is
+specified.
+</P>
+<P>
+When the POSIX interface is not in use, you can cause <b>pcretest</b> to write a
+compiled pattern to a file, by following the modifiers with &#62; and a file name.
+For example:
+<pre>
+  /pattern/im &#62;/some/file
+</pre>
+See the
+<a href="pcreprecompile.html"><b>pcreprecompile</b></a>
+documentation for a discussion about saving and re-using compiled patterns.
+Note that if the pattern was successfully studied with JIT optimization, the
+JIT data cannot be saved.
+</P>
+<P>
+The data that is written is binary. The first eight bytes are the length of the
+compiled pattern data followed by the length of the optional study data, each
+written as four bytes in big-endian order (most significant byte first). If
+there is no study data (either the pattern was not studied, or studying did not
+return any data), the second length is zero. The lengths are followed by an
+exact copy of the compiled pattern. If there is additional study data, this
+(excluding any JIT data) follows immediately after the compiled pattern. After
+writing the file, <b>pcretest</b> expects to read a new pattern.
+</P>
+<P>
+A saved pattern can be reloaded into <b>pcretest</b> by specifying &#60; and a file
+name instead of a pattern. The name of the file must not contain a &#60; character,
+as otherwise <b>pcretest</b> will interpret the line as a pattern delimited by &#60;
+characters.
+For example:
+<pre>
+   re&#62; &#60;/some/file
+  Compiled pattern loaded from /some/file
+  No study data
+</pre>
+If the pattern was previously studied with the JIT optimization, the JIT
+information cannot be saved and restored, and so is lost. When the pattern has
+been loaded, <b>pcretest</b> proceeds to read data lines in the usual way.
+</P>
+<P>
+You can copy a file written by <b>pcretest</b> to a different host and reload it
+there, even if the new host has opposite endianness to the one on which the
+pattern was compiled. For example, you can compile on an i86 machine and run on
+a SPARC machine. When a pattern is reloaded on a host with different
+endianness, the confirmation message is changed to:
+<pre>
+  Compiled pattern (byte-inverted) loaded from /some/file
+</pre>
+The test suite contains some saved pre-compiled patterns with different
+endianness. These are reloaded using "&#60;!" instead of just "&#60;". This suppresses
+the "(byte-inverted)" text so that the output is the same on all hosts. It also
+forces debugging output once the pattern has been reloaded.
+</P>
+<P>
+File names for saving and reloading can be absolute or relative, but note that
+the shell facility of expanding a file name that starts with a tilde (~) is not
+available.
+</P>
+<P>
+The ability to save and reload files in <b>pcretest</b> is intended for testing
+and experimentation. It is not intended for production use because only a
+single pattern can be written to a file. Furthermore, there is no facility for
+supplying custom character tables for use with a reloaded pattern. If the
+original pattern was compiled with custom tables, an attempt to match a subject
+string using a reloaded pattern is likely to cause <b>pcretest</b> to crash.
+Finally, if you attempt to load a file that is not in the correct format, the
+result is undefined.
+</P>
+<br><a name="SEC14" href="#TOC1">SEE ALSO</a><br>
+<P>
+<b>pcre</b>(3), <b>pcre16</b>(3), <b>pcreapi</b>(3), <b>pcrecallout</b>(3),
+<b>pcrejit</b>, <b>pcrematching</b>(3), <b>pcrepartial</b>(d),
+<b>pcrepattern</b>(3), <b>pcreprecompile</b>(3).
+</P>
+<br><a name="SEC15" href="#TOC1">AUTHOR</a><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><a name="SEC16" href="#TOC1">REVISION</a><br>
+<P>
+Last updated: 21 February 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/html/pcreunicode.html b/8.31/doc/html/pcreunicode.html
new file mode 100644
index 0000000..6b5c022
--- /dev/null
+++ b/8.31/doc/html/pcreunicode.html
@@ -0,0 +1,240 @@
+<html>
+<head>
+<title>pcreunicode specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>pcreunicode man page</h1>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
+<p>
+This page is part of the PCRE HTML documentation. It was generated automatically
+from the original man page. If there is any nonsense in it, please consult the
+man page, in case the conversion went wrong.
+<br>
+<br><b>
+UTF-8, UTF-16, AND UNICODE PROPERTY SUPPORT
+</b><br>
+<P>
+From Release 8.30, in addition to its previous UTF-8 support, PCRE also
+supports UTF-16 by means of a separate 16-bit library. This can be built as
+well as, or instead of, the 8-bit library.
+</P>
+<br><b>
+UTF-8 SUPPORT
+</b><br>
+<P>
+In order process UTF-8 strings, you must build PCRE's 8-bit library with UTF
+support, and, in addition, you must call
+<a href="pcre_compile.html"><b>pcre_compile()</b></a>
+with the PCRE_UTF8 option flag, or the pattern must start with the sequence
+(*UTF8). When either of these is the case, both the pattern and any subject
+strings that are matched against it are treated as UTF-8 strings instead of
+strings of 1-byte characters.
+</P>
+<br><b>
+UTF-16 SUPPORT
+</b><br>
+<P>
+In order process UTF-16 strings, you must build PCRE's 16-bit library with UTF
+support, and, in addition, you must call
+<a href="pcre_compile.html"><b>pcre16_compile()</b></a>
+with the PCRE_UTF16 option flag, or the pattern must start with the sequence
+(*UTF16). When either of these is the case, both the pattern and any subject
+strings that are matched against it are treated as UTF-16 strings instead of
+strings of 16-bit characters.
+</P>
+<br><b>
+UTF SUPPORT OVERHEAD
+</b><br>
+<P>
+If you compile PCRE with UTF support, but do not use it at run time, the
+library will be a bit bigger, but the additional run time overhead is limited
+to testing the PCRE_UTF8/16 flag occasionally, so should not be very big.
+</P>
+<br><b>
+UNICODE PROPERTY SUPPORT
+</b><br>
+<P>
+If PCRE is built with Unicode character property support (which implies UTF
+support), the escape sequences \p{..}, \P{..}, and \X can be used.
+The available properties that can be tested are limited to the general
+category properties such as Lu for an upper case letter or Nd for a decimal
+number, the Unicode script names such as Arabic or Han, and the derived
+properties Any and L&. A full list is given in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation. Only the short names for properties are supported. For example,
+\p{L} matches a letter. Its Perl synonym, \p{Letter}, is not supported.
+Furthermore, in Perl, many properties may optionally be prefixed by "Is", for
+compatibility with Perl 5.6. PCRE does not support this.
+<a name="utf8strings"></a></P>
+<br><b>
+Validity of UTF-8 strings
+</b><br>
+<P>
+When you set the PCRE_UTF8 flag, the byte strings passed as patterns and
+subjects are (by default) checked for validity on entry to the relevant
+functions. The entire string is checked before any other processing takes
+place. From release 7.3 of PCRE, the check is according the rules of RFC 3629,
+which are themselves derived from the Unicode specification. Earlier releases
+of PCRE followed the rules of RFC 2279, which allows the full range of 31-bit
+values (0 to 0x7FFFFFFF). The current check allows only values in the range U+0
+to U+10FFFF, excluding U+D800 to U+DFFF.
+</P>
+<P>
+The excluded code points are the "Surrogate Area" of Unicode. They are reserved
+for use by UTF-16, where they are used in pairs to encode codepoints with
+values greater than 0xFFFF. The code points that are encoded by UTF-16 pairs
+are available independently in the UTF-8 encoding. (In other words, the whole
+surrogate thing is a fudge for UTF-16 which unfortunately messes up UTF-8.)
+</P>
+<P>
+If an invalid UTF-8 string is passed to PCRE, an error return is given. At
+compile time, the only additional information is the offset to the first byte
+of the failing character. The run-time functions <b>pcre_exec()</b> and
+<b>pcre_dfa_exec()</b> also pass back this information, as well as a more
+detailed reason code if the caller has provided memory in which to do this.
+</P>
+<P>
+In some situations, you may already know that your strings are valid, and
+therefore want to skip these checks in order to improve performance, for
+example in the case of a long subject string that is being scanned repeatedly
+with different patterns. If you set the PCRE_NO_UTF8_CHECK flag at compile time
+or at run time, PCRE assumes that the pattern or subject it is given
+(respectively) contains only valid UTF-8 codes. In this case, it does not
+diagnose an invalid UTF-8 string.
+</P>
+<P>
+If you pass an invalid UTF-8 string when PCRE_NO_UTF8_CHECK is set, what
+happens depends on why the string is invalid. If the string conforms to the
+"old" definition of UTF-8 (RFC 2279), it is processed as a string of characters
+in the range 0 to 0x7FFFFFFF by <b>pcre_dfa_exec()</b> and the interpreted
+version of <b>pcre_exec()</b>. In other words, apart from the initial validity
+test, these functions (when in UTF-8 mode) handle strings according to the more
+liberal rules of RFC 2279. However, the just-in-time (JIT) optimization for
+<b>pcre_exec()</b> supports only RFC 3629. If you are using JIT optimization, or
+if the string does not even conform to RFC 2279, the result is undefined. Your
+program may crash.
+</P>
+<P>
+If you want to process strings of values in the full range 0 to 0x7FFFFFFF,
+encoded in a UTF-8-like manner as per the old RFC, you can set
+PCRE_NO_UTF8_CHECK to bypass the more restrictive test. However, in this
+situation, you will have to apply your own validity check, and avoid the use of
+JIT optimization.
+<a name="utf16strings"></a></P>
+<br><b>
+Validity of UTF-16 strings
+</b><br>
+<P>
+When you set the PCRE_UTF16 flag, the strings of 16-bit data units that are
+passed as patterns and subjects are (by default) checked for validity on entry
+to the relevant functions. Values other than those in the surrogate range
+U+D800 to U+DFFF are independent code points. Values in the surrogate range
+must be used in pairs in the correct manner.
+</P>
+<P>
+If an invalid UTF-16 string is passed to PCRE, an error return is given. At
+compile time, the only additional information is the offset to the first data
+unit of the failing character. The run-time functions <b>pcre16_exec()</b> and
+<b>pcre16_dfa_exec()</b> also pass back this information, as well as a more
+detailed reason code if the caller has provided memory in which to do this.
+</P>
+<P>
+In some situations, you may already know that your strings are valid, and
+therefore want to skip these checks in order to improve performance. If you set
+the PCRE_NO_UTF16_CHECK flag at compile time or at run time, PCRE assumes that
+the pattern or subject it is given (respectively) contains only valid UTF-16
+sequences. In this case, it does not diagnose an invalid UTF-16 string.
+</P>
+<br><b>
+General comments about UTF modes
+</b><br>
+<P>
+1. Codepoints less than 256 can be specified by either braced or unbraced
+hexadecimal escape sequences (for example, \x{b3} or \xb3). Larger values
+have to use braced sequences.
+</P>
+<P>
+2. Octal numbers up to \777 are recognized, and in UTF-8 mode, they match
+two-byte characters for values greater than \177.
+</P>
+<P>
+3. Repeat quantifiers apply to complete UTF characters, not to individual
+data units, for example: \x{100}{3}.
+</P>
+<P>
+4. The dot metacharacter matches one UTF character instead of a single data
+unit.
+</P>
+<P>
+5. The escape sequence \C can be used to match a single byte in UTF-8 mode, or
+a single 16-bit data unit in UTF-16 mode, but its use can lead to some strange
+effects because it breaks up multi-unit characters (see the description of \C
+in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation). The use of \C is not supported in the alternative matching
+function <b>pcre[16]_dfa_exec()</b>, nor is it supported in UTF mode by the JIT
+optimization of <b>pcre[16]_exec()</b>. If JIT optimization is requested for a
+UTF pattern that contains \C, it will not succeed, and so the matching will
+be carried out by the normal interpretive function.
+</P>
+<P>
+6. The character escapes \b, \B, \d, \D, \s, \S, \w, and \W correctly
+test characters of any code value, but, by default, the characters that PCRE
+recognizes as digits, spaces, or word characters remain the same set as in
+non-UTF mode, all with values less than 256. This remains true even when PCRE
+is built to include Unicode property support, because to do otherwise would
+slow down PCRE in many common cases. Note in particular that this applies to
+\b and \B, because they are defined in terms of \w and \W. If you really
+want to test for a wider sense of, say, "digit", you can use explicit Unicode
+property tests such as \p{Nd}. Alternatively, if you set the PCRE_UCP option,
+the way that the character escapes work is changed so that Unicode properties
+are used to determine which characters match. There are more details in the
+section on
+<a href="pcrepattern.html#genericchartypes">generic character types</a>
+in the
+<a href="pcrepattern.html"><b>pcrepattern</b></a>
+documentation.
+</P>
+<P>
+7. Similarly, characters that match the POSIX named character classes are all
+low-valued characters, unless the PCRE_UCP option is set.
+</P>
+<P>
+8. However, the horizontal and vertical white space matching escapes (\h, \H,
+\v, and \V) do match all the appropriate Unicode characters, whether or not
+PCRE_UCP is set.
+</P>
+<P>
+9. Case-insensitive matching applies only to characters whose values are less
+than 128, unless PCRE is built with Unicode property support. Even when Unicode
+property support is available, PCRE still uses its own character tables when
+checking the case of low-valued characters, so as not to degrade performance.
+The Unicode property information is used only for characters with higher
+values. Furthermore, PCRE supports case-insensitive matching only when there is
+a one-to-one mapping between a letter's cases. There are a small number of
+many-to-one mappings in Unicode; these are not supported by PCRE.
+</P>
+<br><b>
+AUTHOR
+</b><br>
+<P>
+Philip Hazel
+<br>
+University Computing Service
+<br>
+Cambridge CB2 3QH, England.
+<br>
+</P>
+<br><b>
+REVISION
+</b><br>
+<P>
+Last updated: 14 April 2012
+<br>
+Copyright &copy; 1997-2012 University of Cambridge.
+<br>
+<p>
+Return to the <a href="index.html">PCRE index page</a>.
+</p>
diff --git a/8.31/doc/index.html.src b/8.31/doc/index.html.src
new file mode 100644
index 0000000..b9bb91f
--- /dev/null
+++ b/8.31/doc/index.html.src
@@ -0,0 +1,173 @@
+<html>
+<!-- This is a manually maintained file that is the root of the HTML version of 
+     the PCRE documentation. When the HTML documents are built from the man 
+     page versions, the entire doc/html directory is emptied, this file is then 
+     copied into doc/html/index.html, and the remaining files therein are 
+     created by the 132html script.
+-->      
+<head>
+<title>PCRE specification</title>
+</head>
+<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
+<h1>Perl-compatible Regular Expressions (PCRE)</h1>
+<p>
+The HTML documentation for PCRE comprises the following pages:
+</p>
+
+<table>
+<tr><td><a href="pcre.html">pcre</a></td>
+    <td>&nbsp;&nbsp;Introductory page</td></tr>
+
+<tr><td><a href="pcre16.html">pcre16</a></td>
+    <td>&nbsp;&nbsp;Discussion of the 16-bit PCRE library</td></tr>
+
+<tr><td><a href="pcre-config.html">pcre-config</a></td>
+    <td>&nbsp;&nbsp;Information about the installation configuration</td></tr>
+
+<tr><td><a href="pcreapi.html">pcreapi</a></td>
+    <td>&nbsp;&nbsp;PCRE's native API</td></tr>
+
+<tr><td><a href="pcrebuild.html">pcrebuild</a></td>
+    <td>&nbsp;&nbsp;Options for building PCRE</td></tr>
+
+<tr><td><a href="pcrecallout.html">pcrecallout</a></td>
+    <td>&nbsp;&nbsp;The <i>callout</i> facility</td></tr>
+
+<tr><td><a href="pcrecompat.html">pcrecompat</a></td>
+    <td>&nbsp;&nbsp;Compability with Perl</td></tr>
+
+<tr><td><a href="pcrecpp.html">pcrecpp</a></td>
+    <td>&nbsp;&nbsp;The C++ wrapper for the PCRE library</td></tr>
+
+<tr><td><a href="pcredemo.html">pcredemo</a></td>
+    <td>&nbsp;&nbsp;A demonstration C program that uses the PCRE library</td></tr>
+
+<tr><td><a href="pcregrep.html">pcregrep</a></td>
+    <td>&nbsp;&nbsp;The <b>pcregrep</b> command</td></tr>
+
+<tr><td><a href="pcrejit.html">pcrejit</a></td>
+    <td>&nbsp;&nbsp;Discussion of the just-in-time optimization support</td></tr>
+
+<tr><td><a href="pcrelimits.html">pcrelimits</a></td>
+    <td>&nbsp;&nbsp;Details of size and other limits</td></tr>
+
+<tr><td><a href="pcrematching.html">pcrematching</a></td>
+    <td>&nbsp;&nbsp;Discussion of the two matching algorithms</td></tr>
+
+<tr><td><a href="pcrepartial.html">pcrepartial</a></td>
+    <td>&nbsp;&nbsp;Using PCRE for partial matching</td></tr>
+
+<tr><td><a href="pcrepattern.html">pcrepattern</a></td>
+    <td>&nbsp;&nbsp;Specification of the regular expressions supported by PCRE</td></tr>
+
+<tr><td><a href="pcreperform.html">pcreperform</a></td>
+    <td>&nbsp;&nbsp;Some comments on performance</td></tr>
+
+<tr><td><a href="pcreposix.html">pcreposix</a></td>
+    <td>&nbsp;&nbsp;The POSIX API to the PCRE library</td></tr>
+
+<tr><td><a href="pcreprecompile.html">pcreprecompile</a></td>
+    <td>&nbsp;&nbsp;How to save and re-use compiled patterns</td></tr>
+
+<tr><td><a href="pcresample.html">pcresample</a></td>
+    <td>&nbsp;&nbsp;Discussion of the pcredemo program</td></tr>
+
+<tr><td><a href="pcrestack.html">pcrestack</a></td>
+    <td>&nbsp;&nbsp;Discussion of PCRE's stack usage</td></tr>
+
+<tr><td><a href="pcresyntax.html">pcresyntax</a></td>
+    <td>&nbsp;&nbsp;Syntax quick-reference summary</td></tr>
+
+<tr><td><a href="pcretest.html">pcretest</a></td>
+    <td>&nbsp;&nbsp;The <b>pcretest</b> command for testing PCRE</td></tr>
+
+<tr><td><a href="pcreunicode.html">pcreunicode</a></td>
+    <td>&nbsp;&nbsp;Discussion of Unicode and UTF-8/UTF-16 support</td></tr>
+</table>
+
+<p>
+There are also individual pages that summarize the interface for each function 
+in the library. There is a single page for each pair of 8-bit/16-bit functions.
+</p>
+
+<table>    
+
+<tr><td><a href="pcre_assign_jit_stack.html">pcre_assign_jit_stack</a></td>
+    <td>&nbsp;&nbsp;Assign stack for JIT matching</td></tr>
+
+<tr><td><a href="pcre_compile.html">pcre_compile</a></td>
+    <td>&nbsp;&nbsp;Compile a regular expression</td></tr>
+
+<tr><td><a href="pcre_compile2.html">pcre_compile2</a></td>
+    <td>&nbsp;&nbsp;Compile a regular expression (alternate interface)</td></tr>
+
+<tr><td><a href="pcre_config.html">pcre_config</a></td>
+    <td>&nbsp;&nbsp;Show build-time configuration options</td></tr>
+
+<tr><td><a href="pcre_copy_named_substring.html">pcre_copy_named_substring</a></td>
+    <td>&nbsp;&nbsp;Extract named substring into given buffer</td></tr>
+
+<tr><td><a href="pcre_copy_substring.html">pcre_copy_substring</a></td>
+    <td>&nbsp;&nbsp;Extract numbered substring into given buffer</td></tr>
+
+<tr><td><a href="pcre_dfa_exec.html">pcre_dfa_exec</a></td>
+    <td>&nbsp;&nbsp;Match a compiled pattern to a subject string
+    (DFA algorithm; <i>not</i> Perl compatible)</td></tr>
+
+<tr><td><a href="pcre_free_study.html">pcre_free_study</a></td>
+    <td>&nbsp;&nbsp;Free study data</td></tr>
+
+<tr><td><a href="pcre_exec.html">pcre_exec</a></td>
+    <td>&nbsp;&nbsp;Match a compiled pattern to a subject string
+    (Perl compatible)</td></tr>
+
+<tr><td><a href="pcre_free_substring.html">pcre_free_substring</a></td>
+    <td>&nbsp;&nbsp;Free extracted substring</td></tr>
+
+<tr><td><a href="pcre_free_substring_list.html">pcre_free_substring_list</a></td>
+    <td>&nbsp;&nbsp;Free list of extracted substrings</td></tr>
+
+<tr><td><a href="pcre_fullinfo.html">pcre_fullinfo</a></td>
+    <td>&nbsp;&nbsp;Extract information about a pattern</td></tr>
+
+<tr><td><a href="pcre_get_named_substring.html">pcre_get_named_substring</a></td>
+    <td>&nbsp;&nbsp;Extract named substring into new memory</td></tr>
+
+<tr><td><a href="pcre_get_stringnumber.html">pcre_get_stringnumber</a></td>
+    <td>&nbsp;&nbsp;Convert captured string name to number</td></tr>
+
+<tr><td><a href="pcre_get_substring.html">pcre_get_substring</a></td>
+    <td>&nbsp;&nbsp;Extract numbered substring into new memory</td></tr>
+
+<tr><td><a href="pcre_get_substring_list.html">pcre_get_substring_list</a></td>
+    <td>&nbsp;&nbsp;Extract all substrings into new memory</td></tr>
+
+<tr><td><a href="pcre_info.html">pcre_info</a></td>
+    <td>&nbsp;&nbsp;Obsolete information extraction function</td></tr>
+
+<tr><td><a href="pcre_jit_stack_alloc.html">pcre_jit_stack_alloc</a></td>
+    <td>&nbsp;&nbsp;Create a stack for JIT matching</td></tr>
+
+<tr><td><a href="pcre_jit_stack_free.html">pcre_jit_stack_free</a></td>
+    <td>&nbsp;&nbsp;Free a JIT matching stack</td></tr>
+
+<tr><td><a href="pcre_maketables.html">pcre_maketables</a></td>
+    <td>&nbsp;&nbsp;Build character tables in current locale</td></tr>
+    
+<tr><td><a href="pcre_pattern_to_host_byte_order.html">pcre_pattern_to_host_byte_order</a></td>
+    <td>&nbsp;&nbsp;Convert compiled pattern to host byte order if necessary</td></tr>
+
+<tr><td><a href="pcre_refcount.html">pcre_refcount</a></td>
+    <td>&nbsp;&nbsp;Maintain reference count in compiled pattern</td></tr>
+
+<tr><td><a href="pcre_study.html">pcre_study</a></td>
+    <td>&nbsp;&nbsp;Study a compiled pattern</td></tr>
+
+<tr><td><a href="pcre_utf16_to_host_byte_order.html">pcre_utf16_to_host_byte_order</a></td>
+    <td>&nbsp;&nbsp;Convert UTF-16 string to host byte order if necessary</td></tr>
+
+<tr><td><a href="pcre_version.html">pcre_version</a></td>
+    <td>&nbsp;&nbsp;Return PCRE version and release date</td></tr>
+</table>
+
+</html>
diff --git a/8.31/doc/pcre-config.1 b/8.31/doc/pcre-config.1
new file mode 100644
index 0000000..666378c
--- /dev/null
+++ b/8.31/doc/pcre-config.1
@@ -0,0 +1,87 @@
+.TH PCRE-CONFIG 1 "01 January 2012" "PCRE 8.30"
+.SH NAME
+pcre-config - program to return PCRE configuration
+.SH SYNOPSIS
+.rs
+.sp
+.B pcre-config  [--prefix] [--exec-prefix] [--version] [--libs]
+.ti +5n
+.B              [--libs16] [--libs-cpp] [--libs-posix] [--cflags]
+.ti +5n
+.B              [--cflags-posix]
+.
+.
+.SH DESCRIPTION
+.rs
+.sp
+\fBpcre-config\fP returns the configuration of the installed PCRE
+libraries and the options required to compile a program to use them. Some of
+the options apply only to the 8-bit or 16-bit libraries, respectively, and are
+not available if only one of those libraries has been built. If an unavailable
+option is encountered, the "usage" information is output.
+.
+.
+.SH OPTIONS
+.rs
+.TP 10
+\fB--prefix\fP
+Writes the directory prefix used in the PCRE installation for architecture
+independent files (\fI/usr\fP on many systems, \fI/usr/local\fP on some
+systems) to the standard output.
+.TP 10
+\fB--exec-prefix\fP
+Writes the directory prefix used in the PCRE installation for architecture
+dependent files (normally the same as \fB--prefix\fP) to the standard output.
+.TP 10
+\fB--version\fP
+Writes the version number of the installed PCRE libraries to the standard
+output.
+.TP 10
+\fB--libs\fP
+Writes to the standard output the command line options required to link
+with the 8-bit PCRE library (\fB-lpcre\fP on many systems).
+.TP 10
+\fB--libs16\fP
+Writes to the standard output the command line options required to link
+with the 16-bit PCRE library (\fB-lpcre16\fP on many systems).
+.TP 10
+\fB--libs-cpp\fP
+Writes to the standard output the command line options required to link with
+PCRE's C++ wrapper library (\fB-lpcrecpp\fP \fB-lpcre\fP on many
+systems).
+.TP 10
+\fB--libs-posix\fP
+Writes to the standard output the command line options required to link with
+PCRE's POSIX API wrapper library (\fB-lpcreposix\fP \fB-lpcre\fP on many
+systems).
+.TP 10
+\fB--cflags\fP
+Writes to the standard output the command line options required to compile
+files that use PCRE (this may include some \fB-I\fP options, but is blank on
+many systems).
+.TP 10
+\fB--cflags-posix\fP
+Writes to the standard output the command line options required to compile
+files that use PCRE's POSIX API wrapper library (this may include some \fB-I\fP
+options, but is blank on many systems).
+.
+.
+.SH "SEE ALSO"
+.rs
+.sp
+\fBpcre(3)\fP
+.
+.
+.SH AUTHOR
+.rs
+.sp
+This manual page was originally written by Mark Baker for the Debian GNU/Linux
+system. It has been subsequently revised as a generic PCRE man page.
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 01 January 2012
+.fi
diff --git a/8.31/doc/pcre-config.txt b/8.31/doc/pcre-config.txt
new file mode 100644
index 0000000..ec89b32
--- /dev/null
+++ b/8.31/doc/pcre-config.txt
@@ -0,0 +1,81 @@
+PCRE-CONFIG(1)                                                  PCRE-CONFIG(1)
+
+
+
+NAME
+       pcre-config - program to return PCRE configuration
+
+SYNOPSIS
+
+       pcre-config [--prefix] [--exec-prefix] [--version] [--libs]
+            [--libs16] [--libs-cpp] [--libs-posix] [--cflags]
+            [--cflags-posix]
+
+
+DESCRIPTION
+
+       pcre-config  returns  the configuration of the installed PCRE libraries
+       and the options required to compile a program to use them. Some of  the
+       options  apply only to the 8-bit or 16-bit libraries, respectively, and
+       are not available if only one of those libraries has been built. If  an
+       unavailable option is encountered, the "usage" information is output.
+
+
+OPTIONS
+
+       --prefix  Writes the directory prefix used in the PCRE installation for
+                 architecture  independent  files  (/usr  on   many   systems,
+                 /usr/local on some systems) to the standard output.
+
+       --exec-prefix
+                 Writes the directory prefix used in the PCRE installation for
+                 architecture dependent files (normally the same as  --prefix)
+                 to the standard output.
+
+       --version Writes  the version number of the installed PCRE libraries to
+                 the standard output.
+
+       --libs    Writes to  the  standard  output  the  command  line  options
+                 required  to link with the 8-bit PCRE library (-lpcre on many
+                 systems).
+
+       --libs16  Writes to  the  standard  output  the  command  line  options
+                 required  to  link  with the 16-bit PCRE library (-lpcre16 on
+                 many systems).
+
+       --libs-cpp
+                 Writes to  the  standard  output  the  command  line  options
+                 required  to  link with PCRE's C++ wrapper library (-lpcrecpp
+                 -lpcre on many systems).
+
+       --libs-posix
+                 Writes to  the  standard  output  the  command  line  options
+                 required  to  link  with  PCRE's  POSIX  API  wrapper library
+                 (-lpcreposix -lpcre on many systems).
+
+       --cflags  Writes to  the  standard  output  the  command  line  options
+                 required  to  compile  files  that use PCRE (this may include
+                 some -I options, but is blank on many systems).
+
+       --cflags-posix
+                 Writes to  the  standard  output  the  command  line  options
+                 required  to  compile files that use PCRE's POSIX API wrapper
+                 library (this may include some -I options, but  is  blank  on
+                 many systems).
+
+
+SEE ALSO
+
+       pcre(3)
+
+
+AUTHOR
+
+       This  manual  page  was originally written by Mark Baker for the Debian
+       GNU/Linux system. It has been subsequently revised as  a  generic  PCRE
+       man page.
+
+
+REVISION
+
+       Last updated: 01 January 2012
diff --git a/8.31/doc/pcre.3 b/8.31/doc/pcre.3
new file mode 100644
index 0000000..bb0d57c
--- /dev/null
+++ b/8.31/doc/pcre.3
@@ -0,0 +1,158 @@
+.TH PCRE 3 "10 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH INTRODUCTION
+.rs
+.sp
+The PCRE library is a set of functions that implement regular expression
+pattern matching using the same syntax and semantics as Perl, with just a few
+differences. Some features that appeared in Python and PCRE before they
+appeared in Perl are also available using the Python syntax, there is some
+support for one or two .NET and Oniguruma syntax items, and there is an option
+for requesting some minor changes that give better JavaScript compatibility.
+.P
+Starting with release 8.30, it is possible to compile two separate PCRE
+libraries: the original, which supports 8-bit character strings (including
+UTF-8 strings), and a second library that supports 16-bit character strings
+(including UTF-16 strings). The build process allows either one or both to be
+built. The majority of the work to make this possible was done by Zoltan
+Herczeg.
+.P
+The two libraries contain identical sets of functions, except that the names in
+the 16-bit library start with \fBpcre16_\fP instead of \fBpcre_\fP. To avoid
+over-complication and reduce the documentation maintenance load, most of the
+documentation describes the 8-bit library, with the differences for the 16-bit
+library described separately in the
+.\" HREF
+\fBpcre16\fP
+.\"
+page. References to functions or structures of the form \fIpcre[16]_xxx\fP
+should be read as meaning "\fIpcre_xxx\fP when using the 8-bit library and
+\fIpcre16_xxx\fP when using the 16-bit library".
+.P
+The current implementation of PCRE corresponds approximately with Perl 5.12,
+including support for UTF-8/16 encoded strings and Unicode general category
+properties. However, UTF-8/16 and Unicode support has to be explicitly enabled;
+it is not the default. The Unicode tables correspond to Unicode release 6.0.0.
+.P
+In addition to the Perl-compatible matching function, PCRE contains an
+alternative function that matches the same compiled patterns in a different
+way. In certain circumstances, the alternative function has some advantages.
+For a discussion of the two matching algorithms, see the
+.\" HREF
+\fBpcrematching\fP
+.\"
+page.
+.P
+PCRE is written in C and released as a C library. A number of people have
+written wrappers and interfaces of various kinds. In particular, Google Inc.
+have provided a comprehensive C++ wrapper for the 8-bit library. This is now
+included as part of the PCRE distribution. The
+.\" HREF
+\fBpcrecpp\fP
+.\"
+page has details of this interface. Other people's contributions can be found
+in the \fIContrib\fP directory at the primary FTP site, which is:
+.sp
+.\" HTML <a href="ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre">
+.\" </a>
+ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre
+.P
+Details of exactly which Perl regular expression features are and are not
+supported by PCRE are given in separate documents. See the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+and
+.\" HREF
+\fBpcrecompat\fP
+.\"
+pages. There is a syntax summary in the
+.\" HREF
+\fBpcresyntax\fP
+.\"
+page.
+.P
+Some features of PCRE can be included, excluded, or changed when the library is
+built. The
+.\" HREF
+\fBpcre_config()\fP
+.\"
+function makes it possible for a client to discover which features are
+available. The features themselves are described in the
+.\" HREF
+\fBpcrebuild\fP
+.\"
+page. Documentation about building PCRE for various operating systems can be
+found in the \fBREADME\fP and \fBNON-UNIX-USE\fP files in the source
+distribution.
+.P
+The libraries contains a number of undocumented internal functions and data
+tables that are used by more than one of the exported external functions, but
+which are not intended for use by external callers. Their names all begin with
+"_pcre_" or "_pcre16_", which hopefully will not provoke any name clashes. In
+some environments, it is possible to control which external symbols are
+exported when a shared library is built, and in these cases the undocumented
+symbols are not exported.
+.
+.
+.SH "USER DOCUMENTATION"
+.rs
+.sp
+The user documentation for PCRE comprises a number of different sections. In
+the "man" format, each of these is a separate "man page". In the HTML format,
+each is a separate page, linked from the index page. In the plain text format,
+all the sections, except the \fBpcredemo\fP section, are concatenated, for ease
+of searching. The sections are as follows:
+.sp
+  pcre              this document
+  pcre16            details of the 16-bit library
+  pcre-config       show PCRE installation configuration information
+  pcreapi           details of PCRE's native C API
+  pcrebuild         options for building PCRE
+  pcrecallout       details of the callout feature
+  pcrecompat        discussion of Perl compatibility
+  pcrecpp           details of the C++ wrapper for the 8-bit library
+  pcredemo          a demonstration C program that uses PCRE
+  pcregrep          description of the \fBpcregrep\fP command (8-bit only)
+  pcrejit           discussion of the just-in-time optimization support
+  pcrelimits        details of size and other limits
+  pcrematching      discussion of the two matching algorithms
+  pcrepartial       details of the partial matching facility
+.\" JOIN
+  pcrepattern       syntax and semantics of supported
+                      regular expressions
+  pcreperform       discussion of performance issues
+  pcreposix         the POSIX-compatible C API for the 8-bit library
+  pcreprecompile    details of saving and re-using precompiled patterns
+  pcresample        discussion of the pcredemo program
+  pcrestack         discussion of stack usage
+  pcresyntax        quick syntax reference
+  pcretest          description of the \fBpcretest\fP testing command
+  pcreunicode       discussion of Unicode and UTF-8/16 support
+.sp
+In addition, in the "man" and HTML formats, there is a short page for each
+8-bit C library function, listing its arguments and results.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.P
+Putting an actual email address here seems to have been a spam magnet, so I've
+taken it away. If you want to email me, use my two initials, followed by the
+two digits 10, at the domain cam.ac.uk.
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 10 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcre.txt b/8.31/doc/pcre.txt
new file mode 100644
index 0000000..19f04f2
--- /dev/null
+++ b/8.31/doc/pcre.txt
@@ -0,0 +1,9160 @@
+-----------------------------------------------------------------------------
+This file contains a concatenation of the PCRE man pages, converted to plain
+text format for ease of searching with a text editor, or for use on systems
+that do not have a man page processor. The small individual files that give
+synopses of each function in the library have not been included. Neither has
+the pcredemo program. There are separate text files for the pcregrep and
+pcretest commands.
+-----------------------------------------------------------------------------
+
+
+PCRE(3)                                                                PCRE(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+INTRODUCTION
+
+       The  PCRE  library is a set of functions that implement regular expres-
+       sion pattern matching using the same syntax and semantics as Perl, with
+       just  a few differences. Some features that appeared in Python and PCRE
+       before they appeared in Perl are also available using the  Python  syn-
+       tax,  there  is  some  support for one or two .NET and Oniguruma syntax
+       items, and there is an option for requesting some  minor  changes  that
+       give better JavaScript compatibility.
+
+       Starting with release 8.30, it is possible to compile two separate PCRE
+       libraries:  the  original,  which  supports  8-bit  character   strings
+       (including  UTF-8  strings),  and a second library that supports 16-bit
+       character strings (including UTF-16 strings). The build process  allows
+       either  one  or both to be built. The majority of the work to make this
+       possible was done by Zoltan Herczeg.
+
+       The two libraries contain identical sets of functions, except that  the
+       names  in  the  16-bit  library start with pcre16_ instead of pcre_. To
+       avoid over-complication and reduce the documentation maintenance  load,
+       most of the documentation describes the 8-bit library, with the differ-
+       ences for the 16-bit library described separately in the  pcre16  page.
+       References  to  functions or structures of the form pcre[16]_xxx should
+       be  read  as  meaning  "pcre_xxx  when  using  the  8-bit  library  and
+       pcre16_xxx when using the 16-bit library".
+
+       The  current implementation of PCRE corresponds approximately with Perl
+       5.12, including support for UTF-8/16 encoded strings and  Unicode  gen-
+       eral  category properties. However, UTF-8/16 and Unicode support has to
+       be explicitly enabled; it is not the default. The Unicode tables corre-
+       spond to Unicode release 6.0.0.
+
+       In  addition to the Perl-compatible matching function, PCRE contains an
+       alternative function that matches the same compiled patterns in a  dif-
+       ferent way. In certain circumstances, the alternative function has some
+       advantages.  For a discussion of the two matching algorithms,  see  the
+       pcrematching page.
+
+       PCRE  is  written  in C and released as a C library. A number of people
+       have written wrappers and interfaces of various kinds.  In  particular,
+       Google  Inc.   have  provided a comprehensive C++ wrapper for the 8-bit
+       library. This is now included as part of  the  PCRE  distribution.  The
+       pcrecpp  page  has  details of this interface. Other people's contribu-
+       tions can be found in the Contrib directory at the  primary  FTP  site,
+       which is:
+
+       ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre
+
+       Details  of  exactly which Perl regular expression features are and are
+       not supported by PCRE are given in separate documents. See the pcrepat-
+       tern  and pcrecompat pages. There is a syntax summary in the pcresyntax
+       page.
+
+       Some features of PCRE can be included, excluded, or  changed  when  the
+       library  is  built.  The pcre_config() function makes it possible for a
+       client to discover which features are  available.  The  features  them-
+       selves  are described in the pcrebuild page. Documentation about build-
+       ing PCRE for various operating systems can be found in the  README  and
+       NON-UNIX-USE files in the source distribution.
+
+       The  libraries contains a number of undocumented internal functions and
+       data tables that are used by more than one  of  the  exported  external
+       functions,  but  which  are  not  intended for use by external callers.
+       Their names all begin with "_pcre_" or "_pcre16_", which hopefully will
+       not  provoke  any name clashes. In some environments, it is possible to
+       control which external symbols are exported when a  shared  library  is
+       built, and in these cases the undocumented symbols are not exported.
+
+
+USER DOCUMENTATION
+
+       The  user  documentation  for PCRE comprises a number of different sec-
+       tions. In the "man" format, each of these is a separate "man page".  In
+       the  HTML  format, each is a separate page, linked from the index page.
+       In the plain text format, all the sections, except  the  pcredemo  sec-
+       tion, are concatenated, for ease of searching. The sections are as fol-
+       lows:
+
+         pcre              this document
+         pcre16            details of the 16-bit library
+         pcre-config       show PCRE installation configuration information
+         pcreapi           details of PCRE's native C API
+         pcrebuild         options for building PCRE
+         pcrecallout       details of the callout feature
+         pcrecompat        discussion of Perl compatibility
+         pcrecpp           details of the C++ wrapper for the 8-bit library
+         pcredemo          a demonstration C program that uses PCRE
+         pcregrep          description of the pcregrep command (8-bit only)
+         pcrejit           discussion of the just-in-time optimization support
+         pcrelimits        details of size and other limits
+         pcrematching      discussion of the two matching algorithms
+         pcrepartial       details of the partial matching facility
+         pcrepattern       syntax and semantics of supported
+                             regular expressions
+         pcreperform       discussion of performance issues
+         pcreposix         the POSIX-compatible C API for the 8-bit library
+         pcreprecompile    details of saving and re-using precompiled patterns
+         pcresample        discussion of the pcredemo program
+         pcrestack         discussion of stack usage
+         pcresyntax        quick syntax reference
+         pcretest          description of the pcretest testing command
+         pcreunicode       discussion of Unicode and UTF-8/16 support
+
+       In addition, in the "man" and HTML formats, there is a short  page  for
+       each 8-bit C library function, listing its arguments and results.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+       Putting  an actual email address here seems to have been a spam magnet,
+       so I've taken it away. If you want to email me, use  my  two  initials,
+       followed by the two digits 10, at the domain cam.ac.uk.
+
+
+REVISION
+
+       Last updated: 10 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCRE(3)                                                                PCRE(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+       #include <pcre.h>
+
+
+PCRE 16-BIT API BASIC FUNCTIONS
+
+       pcre16 *pcre16_compile(PCRE_SPTR16 pattern, int options,
+            const char **errptr, int *erroffset,
+            const unsigned char *tableptr);
+
+       pcre16 *pcre16_compile2(PCRE_SPTR16 pattern, int options,
+            int *errorcodeptr,
+            const char **errptr, int *erroffset,
+            const unsigned char *tableptr);
+
+       pcre16_extra *pcre16_study(const pcre16 *code, int options,
+            const char **errptr);
+
+       void pcre16_free_study(pcre16_extra *extra);
+
+       int pcre16_exec(const pcre16 *code, const pcre16_extra *extra,
+            PCRE_SPTR16 subject, int length, int startoffset,
+            int options, int *ovector, int ovecsize);
+
+       int pcre16_dfa_exec(const pcre16 *code, const pcre16_extra *extra,
+            PCRE_SPTR16 subject, int length, int startoffset,
+            int options, int *ovector, int ovecsize,
+            int *workspace, int wscount);
+
+
+PCRE 16-BIT API STRING EXTRACTION FUNCTIONS
+
+       int pcre16_copy_named_substring(const pcre16 *code,
+            PCRE_SPTR16 subject, int *ovector,
+            int stringcount, PCRE_SPTR16 stringname,
+            PCRE_UCHAR16 *buffer, int buffersize);
+
+       int pcre16_copy_substring(PCRE_SPTR16 subject, int *ovector,
+            int stringcount, int stringnumber, PCRE_UCHAR16 *buffer,
+            int buffersize);
+
+       int pcre16_get_named_substring(const pcre16 *code,
+            PCRE_SPTR16 subject, int *ovector,
+            int stringcount, PCRE_SPTR16 stringname,
+            PCRE_SPTR16 *stringptr);
+
+       int pcre16_get_stringnumber(const pcre16 *code,
+            PCRE_SPTR16 name);
+
+       int pcre16_get_stringtable_entries(const pcre16 *code,
+            PCRE_SPTR16 name, PCRE_UCHAR16 **first, PCRE_UCHAR16 **last);
+
+       int pcre16_get_substring(PCRE_SPTR16 subject, int *ovector,
+            int stringcount, int stringnumber,
+            PCRE_SPTR16 *stringptr);
+
+       int pcre16_get_substring_list(PCRE_SPTR16 subject,
+            int *ovector, int stringcount, PCRE_SPTR16 **listptr);
+
+       void pcre16_free_substring(PCRE_SPTR16 stringptr);
+
+       void pcre16_free_substring_list(PCRE_SPTR16 *stringptr);
+
+
+PCRE 16-BIT API AUXILIARY FUNCTIONS
+
+       pcre16_jit_stack *pcre16_jit_stack_alloc(int startsize, int maxsize);
+
+       void pcre16_jit_stack_free(pcre16_jit_stack *stack);
+
+       void pcre16_assign_jit_stack(pcre16_extra *extra,
+            pcre16_jit_callback callback, void *data);
+
+       const unsigned char *pcre16_maketables(void);
+
+       int pcre16_fullinfo(const pcre16 *code, const pcre16_extra *extra,
+            int what, void *where);
+
+       int pcre16_refcount(pcre16 *code, int adjust);
+
+       int pcre16_config(int what, void *where);
+
+       const char *pcre16_version(void);
+
+       int pcre16_pattern_to_host_byte_order(pcre16 *code,
+            pcre16_extra *extra, const unsigned char *tables);
+
+
+PCRE 16-BIT API INDIRECTED FUNCTIONS
+
+       void *(*pcre16_malloc)(size_t);
+
+       void (*pcre16_free)(void *);
+
+       void *(*pcre16_stack_malloc)(size_t);
+
+       void (*pcre16_stack_free)(void *);
+
+       int (*pcre16_callout)(pcre16_callout_block *);
+
+
+PCRE 16-BIT API 16-BIT-ONLY FUNCTION
+
+       int pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *output,
+            PCRE_SPTR16 input, int length, int *byte_order,
+            int keep_boms);
+
+
+THE PCRE 16-BIT LIBRARY
+
+       Starting  with  release  8.30, it is possible to compile a PCRE library
+       that supports 16-bit character strings, including  UTF-16  strings,  as
+       well  as  or instead of the original 8-bit library. The majority of the
+       work to make  this  possible  was  done  by  Zoltan  Herczeg.  The  two
+       libraries contain identical sets of functions, used in exactly the same
+       way. Only the names of the functions and the data types of their  argu-
+       ments  and results are different. To avoid over-complication and reduce
+       the documentation maintenance load,  most  of  the  PCRE  documentation
+       describes  the  8-bit  library,  with only occasional references to the
+       16-bit library. This page describes what is different when you use  the
+       16-bit library.
+
+       WARNING:  A  single  application can be linked with both libraries, but
+       you must take care when processing any particular pattern to use  func-
+       tions  from  just one library. For example, if you want to study a pat-
+       tern that was compiled with  pcre16_compile(),  you  must  do  so  with
+       pcre16_study(), not pcre_study(), and you must free the study data with
+       pcre16_free_study().
+
+
+THE HEADER FILE
+
+       There is only one header file, pcre.h. It contains prototypes  for  all
+       the  functions  in  both  libraries,  as  well as definitions of flags,
+       structures, error codes, etc.
+
+
+THE LIBRARY NAME
+
+       In Unix-like systems, the 16-bit library is called libpcre16,  and  can
+       normally  be  accesss  by adding -lpcre16 to the command for linking an
+       application that uses PCRE.
+
+
+STRING TYPES
+
+       In the 8-bit library, strings are passed to PCRE library  functions  as
+       vectors  of  bytes  with  the  C  type "char *". In the 16-bit library,
+       strings are passed as vectors of unsigned 16-bit quantities. The  macro
+       PCRE_UCHAR16  specifies  an  appropriate  data type, and PCRE_SPTR16 is
+       defined as "const PCRE_UCHAR16 *". In very  many  environments,  "short
+       int" is a 16-bit data type. When PCRE is built, it defines PCRE_UCHAR16
+       as "short int", but checks that it really is a 16-bit data type. If  it
+       is not, the build fails with an error message telling the maintainer to
+       modify the definition appropriately.
+
+
+STRUCTURE TYPES
+
+       The types of the opaque structures that are used  for  compiled  16-bit
+       patterns  and  JIT stacks are pcre16 and pcre16_jit_stack respectively.
+       The  type  of  the  user-accessible  structure  that  is  returned   by
+       pcre16_study()  is  pcre16_extra, and the type of the structure that is
+       used for passing data to a callout  function  is  pcre16_callout_block.
+       These structures contain the same fields, with the same names, as their
+       8-bit counterparts. The only difference is that pointers  to  character
+       strings are 16-bit instead of 8-bit types.
+
+
+16-BIT FUNCTIONS
+
+       For  every function in the 8-bit library there is a corresponding func-
+       tion in the 16-bit library with a name that starts with pcre16_ instead
+       of  pcre_.  The  prototypes are listed above. In addition, there is one
+       extra function, pcre16_utf16_to_host_byte_order(). This  is  a  utility
+       function  that converts a UTF-16 character string to host byte order if
+       necessary. The other 16-bit  functions  expect  the  strings  they  are
+       passed to be in host byte order.
+
+       The input and output arguments of pcre16_utf16_to_host_byte_order() may
+       point to the same address, that is, conversion in place  is  supported.
+       The output buffer must be at least as long as the input.
+
+       The  length  argument  specifies the number of 16-bit data units in the
+       input string; a negative value specifies a zero-terminated string.
+
+       If byte_order is NULL, it is assumed that the string starts off in host
+       byte  order. This may be changed by byte-order marks (BOMs) anywhere in
+       the string (commonly as the first character).
+
+       If byte_order is not NULL, a non-zero value of the integer to which  it
+       points  means  that  the input starts off in host byte order, otherwise
+       the opposite order is assumed. Again, BOMs in  the  string  can  change
+       this. The final byte order is passed back at the end of processing.
+
+       If  keep_boms  is  not  zero,  byte-order  mark characters (0xfeff) are
+       copied into the output string. Otherwise they are discarded.
+
+       The result of the function is the number of 16-bit  units  placed  into
+       the  output  buffer,  including  the  zero terminator if the string was
+       zero-terminated.
+
+
+SUBJECT STRING OFFSETS
+
+       The offsets within subject strings that are returned  by  the  matching
+       functions are in 16-bit units rather than bytes.
+
+
+NAMED SUBPATTERNS
+
+       The  name-to-number translation table that is maintained for named sub-
+       patterns uses 16-bit characters.  The  pcre16_get_stringtable_entries()
+       function returns the length of each entry in the table as the number of
+       16-bit data units.
+
+
+OPTION NAMES
+
+       There   are   two   new   general   option   names,   PCRE_UTF16    and
+       PCRE_NO_UTF16_CHECK,     which     correspond    to    PCRE_UTF8    and
+       PCRE_NO_UTF8_CHECK in the 8-bit library. In  fact,  these  new  options
+       define  the  same bits in the options word. There is a discussion about
+       the validity of UTF-16 strings in the pcreunicode page.
+
+       For the pcre16_config() function there is an  option  PCRE_CONFIG_UTF16
+       that  returns  1  if UTF-16 support is configured, otherwise 0. If this
+       option is given to pcre_config(), or if the PCRE_CONFIG_UTF8 option  is
+       given to pcre16_config(), the result is the PCRE_ERROR_BADOPTION error.
+
+
+CHARACTER CODES
+
+       In  16-bit  mode,  when  PCRE_UTF16  is  not  set, character values are
+       treated in the same way as in 8-bit, non UTF-8 mode, except, of course,
+       that  they  can  range from 0 to 0xffff instead of 0 to 0xff. Character
+       types for characters less than 0xff can therefore be influenced by  the
+       locale  in  the  same way as before.  Characters greater than 0xff have
+       only one case, and no "type" (such as letter or digit).
+
+       In UTF-16 mode, the character code  is  Unicode,  in  the  range  0  to
+       0x10ffff,  with  the  exception of values in the range 0xd800 to 0xdfff
+       because those are "surrogate" values that are used in pairs  to  encode
+       values greater than 0xffff.
+
+       A  UTF-16 string can indicate its endianness by special code knows as a
+       byte-order mark (BOM). The PCRE functions do not handle this, expecting
+       strings   to   be  in  host  byte  order.  A  utility  function  called
+       pcre16_utf16_to_host_byte_order() is provided to help  with  this  (see
+       above).
+
+
+ERROR NAMES
+
+       The  errors PCRE_ERROR_BADUTF16_OFFSET and PCRE_ERROR_SHORTUTF16 corre-
+       spond to their 8-bit  counterparts.  The  error  PCRE_ERROR_BADMODE  is
+       given  when  a  compiled pattern is passed to a function that processes
+       patterns in the other mode, for example, if  a  pattern  compiled  with
+       pcre_compile() is passed to pcre16_exec().
+
+       There  are  new  error  codes whose names begin with PCRE_UTF16_ERR for
+       invalid UTF-16 strings, corresponding to the  PCRE_UTF8_ERR  codes  for
+       UTF-8  strings that are described in the section entitled "Reason codes
+       for invalid UTF-8 strings" in the main pcreapi page. The UTF-16  errors
+       are:
+
+         PCRE_UTF16_ERR1  Missing low surrogate at end of string
+         PCRE_UTF16_ERR2  Invalid low surrogate follows high surrogate
+         PCRE_UTF16_ERR3  Isolated low surrogate
+         PCRE_UTF16_ERR4  Invalid character 0xfffe
+
+
+ERROR TEXTS
+
+       If  there is an error while compiling a pattern, the error text that is
+       passed back by pcre16_compile() or pcre16_compile2() is still an  8-bit
+       character string, zero-terminated.
+
+
+CALLOUTS
+
+       The  subject  and  mark fields in the callout block that is passed to a
+       callout function point to 16-bit vectors.
+
+
+TESTING
+
+       The pcretest program continues to operate with 8-bit input  and  output
+       files,  but it can be used for testing the 16-bit library. If it is run
+       with the command line option -16, patterns and subject strings are con-
+       verted from 8-bit to 16-bit before being passed to PCRE, and the 16-bit
+       library functions are used instead of the 8-bit ones.  Returned  16-bit
+       strings are converted to 8-bit for output. If the 8-bit library was not
+       compiled, pcretest defaults to 16-bit and the -16 option is ignored.
+
+       When PCRE is being built, the RunTest script that is  called  by  "make
+       check"  uses  the pcretest -C option to discover which of the 8-bit and
+       16-bit libraries has been built, and runs the tests appropriately.
+
+
+NOT SUPPORTED IN 16-BIT MODE
+
+       Not all the features of the 8-bit library are available with the 16-bit
+       library.  The  C++  and  POSIX wrapper functions support only the 8-bit
+       library, and the pcregrep program is at present 8-bit only.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 14 April 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREBUILD(3)                                                      PCREBUILD(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE BUILD-TIME OPTIONS
+
+       This  document  describes  the  optional  features  of PCRE that can be
+       selected when the library is compiled. It assumes use of the  configure
+       script,  where the optional features are selected or deselected by pro-
+       viding options to configure before running the make  command.  However,
+       the  same  options  can be selected in both Unix-like and non-Unix-like
+       environments using the GUI facility of cmake-gui if you are using CMake
+       instead of configure to build PCRE.
+
+       There  is  a  lot more information about building PCRE in non-Unix-like
+       environments in the file called NON_UNIX_USE, which is part of the PCRE
+       distribution.  You  should consult this file as well as the README file
+       if you are building in a non-Unix-like environment.
+
+       The complete list of options for configure (which includes the standard
+       ones  such  as  the  selection  of  the  installation directory) can be
+       obtained by running
+
+         ./configure --help
+
+       The following sections include  descriptions  of  options  whose  names
+       begin with --enable or --disable. These settings specify changes to the
+       defaults for the configure command. Because of the way  that  configure
+       works,  --enable  and --disable always come in pairs, so the complemen-
+       tary option always exists as well, but as it specifies the default,  it
+       is not described.
+
+
+BUILDING 8-BIT and 16-BIT LIBRARIES
+
+       By  default,  a  library  called libpcre is built, containing functions
+       that take string arguments contained in vectors  of  bytes,  either  as
+       single-byte  characters,  or interpreted as UTF-8 strings. You can also
+       build a separate library, called libpcre16, in which strings  are  con-
+       tained  in  vectors of 16-bit data units and interpreted either as sin-
+       gle-unit characters or UTF-16 strings, by adding
+
+         --enable-pcre16
+
+       to the configure command. If you do not want the 8-bit library, add
+
+         --disable-pcre8
+
+       as well. At least one of the two libraries must be built. Note that the
+       C++  and  POSIX wrappers are for the 8-bit library only, and that pcre-
+       grep is an 8-bit program. None of these are built if  you  select  only
+       the 16-bit library.
+
+
+BUILDING SHARED AND STATIC LIBRARIES
+
+       The  PCRE building process uses libtool to build both shared and static
+       Unix libraries by default. You can suppress one of these by adding  one
+       of
+
+         --disable-shared
+         --disable-static
+
+       to the configure command, as required.
+
+
+C++ SUPPORT
+
+       By  default,  if the 8-bit library is being built, the configure script
+       will search for a C++ compiler and C++ header files. If it finds  them,
+       it  automatically  builds  the C++ wrapper library (which supports only
+       8-bit strings). You can disable this by adding
+
+         --disable-cpp
+
+       to the configure command.
+
+
+UTF-8 and UTF-16 SUPPORT
+
+       To build PCRE with support for UTF Unicode character strings, add
+
+         --enable-utf
+
+       to the configure command.  This  setting  applies  to  both  libraries,
+       adding support for UTF-8 to the 8-bit library and support for UTF-16 to
+       the 16-bit library. There are no separate options  for  enabling  UTF-8
+       and  UTF-16  independently because that would allow ridiculous settings
+       such as  requesting  UTF-16  support  while  building  only  the  8-bit
+       library.  It  is not possible to build one library with UTF support and
+       the other without in the same configuration. (For backwards compatibil-
+       ity, --enable-utf8 is a synonym of --enable-utf.)
+
+       Of  itself,  this  setting does not make PCRE treat strings as UTF-8 or
+       UTF-16. As well as compiling PCRE with this option, you also have  have
+       to set the PCRE_UTF8 or PCRE_UTF16 option when you call one of the pat-
+       tern compiling functions.
+
+       If you set --enable-utf when compiling in an EBCDIC  environment,  PCRE
+       expects  its  input  to be either ASCII or UTF-8 (depending on the run-
+       time option). It is not possible to support both EBCDIC and UTF-8 codes
+       in  the  same  version  of  the library. Consequently, --enable-utf and
+       --enable-ebcdic are mutually exclusive.
+
+
+UNICODE CHARACTER PROPERTY SUPPORT
+
+       UTF support allows the libraries to process character codepoints up  to
+       0x10ffff  in the strings that they handle. On its own, however, it does
+       not provide any facilities for accessing the properties of such charac-
+       ters. If you want to be able to use the pattern escapes \P, \p, and \X,
+       which refer to Unicode character properties, you must add
+
+         --enable-unicode-properties
+
+       to the configure command. This implies UTF support, even  if  you  have
+       not explicitly requested it.
+
+       Including  Unicode  property  support  adds around 30K of tables to the
+       PCRE library. Only the general category properties such as  Lu  and  Nd
+       are supported. Details are given in the pcrepattern documentation.
+
+
+JUST-IN-TIME COMPILER SUPPORT
+
+       Just-in-time compiler support is included in the build by specifying
+
+         --enable-jit
+
+       This  support  is available only for certain hardware architectures. If
+       this option is set for an  unsupported  architecture,  a  compile  time
+       error  occurs.   See  the pcrejit documentation for a discussion of JIT
+       usage. When JIT support is enabled, pcregrep automatically makes use of
+       it, unless you add
+
+         --disable-pcregrep-jit
+
+       to the "configure" command.
+
+
+CODE VALUE OF NEWLINE
+
+       By  default,  PCRE interprets the linefeed (LF) character as indicating
+       the end of a line. This is the normal newline  character  on  Unix-like
+       systems.  You  can compile PCRE to use carriage return (CR) instead, by
+       adding
+
+         --enable-newline-is-cr
+
+       to the  configure  command.  There  is  also  a  --enable-newline-is-lf
+       option, which explicitly specifies linefeed as the newline character.
+
+       Alternatively, you can specify that line endings are to be indicated by
+       the two character sequence CRLF. If you want this, add
+
+         --enable-newline-is-crlf
+
+       to the configure command. There is a fourth option, specified by
+
+         --enable-newline-is-anycrlf
+
+       which causes PCRE to recognize any of the three sequences  CR,  LF,  or
+       CRLF as indicating a line ending. Finally, a fifth option, specified by
+
+         --enable-newline-is-any
+
+       causes PCRE to recognize any Unicode newline sequence.
+
+       Whatever  line  ending convention is selected when PCRE is built can be
+       overridden when the library functions are called. At build time  it  is
+       conventional to use the standard for your operating system.
+
+
+WHAT \R MATCHES
+
+       By  default,  the  sequence \R in a pattern matches any Unicode newline
+       sequence, whatever has been selected as the line  ending  sequence.  If
+       you specify
+
+         --enable-bsr-anycrlf
+
+       the  default  is changed so that \R matches only CR, LF, or CRLF. What-
+       ever is selected when PCRE is built can be overridden when the  library
+       functions are called.
+
+
+POSIX MALLOC USAGE
+
+       When  the  8-bit library is called through the POSIX interface (see the
+       pcreposix documentation), additional working storage  is  required  for
+       holding  the  pointers  to  capturing substrings, because PCRE requires
+       three integers per substring, whereas the POSIX interface provides only
+       two.  If  the number of expected substrings is small, the wrapper func-
+       tion uses space on the stack, because this is faster  than  using  mal-
+       loc()  for each call. The default threshold above which the stack is no
+       longer used is 10; it can be changed by adding a setting such as
+
+         --with-posix-malloc-threshold=20
+
+       to the configure command.
+
+
+HANDLING VERY LARGE PATTERNS
+
+       Within a compiled pattern, offset values are used  to  point  from  one
+       part  to another (for example, from an opening parenthesis to an alter-
+       nation metacharacter). By default, two-byte values are used  for  these
+       offsets,  leading  to  a  maximum size for a compiled pattern of around
+       64K. This is sufficient to handle all but the most  gigantic  patterns.
+       Nevertheless,  some  people do want to process truly enormous patterns,
+       so it is possible to compile PCRE to use three-byte or  four-byte  off-
+       sets by adding a setting such as
+
+         --with-link-size=3
+
+       to  the  configure command. The value given must be 2, 3, or 4. For the
+       16-bit library, a value of 3 is rounded up to 4. Using  longer  offsets
+       slows down the operation of PCRE because it has to load additional data
+       when handling them.
+
+
+AVOIDING EXCESSIVE STACK USAGE
+
+       When matching with the pcre_exec() function, PCRE implements backtrack-
+       ing  by  making recursive calls to an internal function called match().
+       In environments where the size of the stack is limited,  this  can  se-
+       verely  limit  PCRE's operation. (The Unix environment does not usually
+       suffer from this problem, but it may sometimes be necessary to increase
+       the  maximum  stack size.  There is a discussion in the pcrestack docu-
+       mentation.) An alternative approach to recursion that uses memory  from
+       the  heap  to remember data, instead of using recursive function calls,
+       has been implemented to work round the problem of limited  stack  size.
+       If you want to build a version of PCRE that works this way, add
+
+         --disable-stack-for-recursion
+
+       to  the  configure  command. With this configuration, PCRE will use the
+       pcre_stack_malloc and pcre_stack_free variables to call memory  manage-
+       ment  functions. By default these point to malloc() and free(), but you
+       can replace the pointers so that your own functions are used instead.
+
+       Separate functions are  provided  rather  than  using  pcre_malloc  and
+       pcre_free  because  the  usage  is  very  predictable:  the block sizes
+       requested are always the same, and  the  blocks  are  always  freed  in
+       reverse  order.  A calling program might be able to implement optimized
+       functions that perform better  than  malloc()  and  free().  PCRE  runs
+       noticeably more slowly when built in this way. This option affects only
+       the pcre_exec() function; it is not relevant for pcre_dfa_exec().
+
+
+LIMITING PCRE RESOURCE USAGE
+
+       Internally, PCRE has a function called match(), which it calls  repeat-
+       edly   (sometimes   recursively)  when  matching  a  pattern  with  the
+       pcre_exec() function. By controlling the maximum number of  times  this
+       function  may be called during a single matching operation, a limit can
+       be placed on the resources used by a single call  to  pcre_exec().  The
+       limit  can be changed at run time, as described in the pcreapi documen-
+       tation. The default is 10 million, but this can be changed by adding  a
+       setting such as
+
+         --with-match-limit=500000
+
+       to   the   configure  command.  This  setting  has  no  effect  on  the
+       pcre_dfa_exec() matching function.
+
+       In some environments it is desirable to limit the  depth  of  recursive
+       calls of match() more strictly than the total number of calls, in order
+       to restrict the maximum amount of stack (or heap,  if  --disable-stack-
+       for-recursion is specified) that is used. A second limit controls this;
+       it defaults to the value that  is  set  for  --with-match-limit,  which
+       imposes  no  additional constraints. However, you can set a lower limit
+       by adding, for example,
+
+         --with-match-limit-recursion=10000
+
+       to the configure command. This value can  also  be  overridden  at  run
+       time.
+
+
+CREATING CHARACTER TABLES AT BUILD TIME
+
+       PCRE  uses fixed tables for processing characters whose code values are
+       less than 256. By default, PCRE is built with a set of tables that  are
+       distributed  in  the  file pcre_chartables.c.dist. These tables are for
+       ASCII codes only. If you add
+
+         --enable-rebuild-chartables
+
+       to the configure command, the distributed tables are  no  longer  used.
+       Instead,  a  program  called dftables is compiled and run. This outputs
+       the source for new set of tables, created in the default locale of your
+       C  run-time  system. (This method of replacing the tables does not work
+       if you are cross compiling, because dftables is run on the local  host.
+       If you need to create alternative tables when cross compiling, you will
+       have to do so "by hand".)
+
+
+USING EBCDIC CODE
+
+       PCRE assumes by default that it will run in an  environment  where  the
+       character  code  is  ASCII  (or Unicode, which is a superset of ASCII).
+       This is the case for most computer operating systems.  PCRE  can,  how-
+       ever, be compiled to run in an EBCDIC environment by adding
+
+         --enable-ebcdic
+
+       to the configure command. This setting implies --enable-rebuild-charta-
+       bles. You should only use it if you know that  you  are  in  an  EBCDIC
+       environment  (for  example,  an  IBM  mainframe  operating system). The
+       --enable-ebcdic option is incompatible with --enable-utf.
+
+
+PCREGREP OPTIONS FOR COMPRESSED FILE SUPPORT
+
+       By default, pcregrep reads all files as plain text. You can build it so
+       that it recognizes files whose names end in .gz or .bz2, and reads them
+       with libz or libbz2, respectively, by adding one or both of
+
+         --enable-pcregrep-libz
+         --enable-pcregrep-libbz2
+
+       to the configure command. These options naturally require that the rel-
+       evant  libraries  are installed on your system. Configuration will fail
+       if they are not.
+
+
+PCREGREP BUFFER SIZE
+
+       pcregrep uses an internal buffer to hold a "window" on the file  it  is
+       scanning, in order to be able to output "before" and "after" lines when
+       it finds a match. The size of the buffer is controlled by  a  parameter
+       whose default value is 20K. The buffer itself is three times this size,
+       but because of the way it is used for holding "before" lines, the long-
+       est  line  that  is guaranteed to be processable is the parameter size.
+       You can change the default parameter value by adding, for example,
+
+         --with-pcregrep-bufsize=50K
+
+       to the configure command. The caller of pcregrep can, however, override
+       this value by specifying a run-time option.
+
+
+PCRETEST OPTION FOR LIBREADLINE SUPPORT
+
+       If you add
+
+         --enable-pcretest-libreadline
+
+       to  the  configure  command,  pcretest  is  linked with the libreadline
+       library, and when its input is from a terminal, it reads it  using  the
+       readline() function. This provides line-editing and history facilities.
+       Note that libreadline is GPL-licensed, so if you distribute a binary of
+       pcretest linked in this way, there may be licensing issues.
+
+       Setting  this  option  causes  the -lreadline option to be added to the
+       pcretest build. In many operating environments with  a  sytem-installed
+       libreadline this is sufficient. However, in some environments (e.g.  if
+       an unmodified distribution version of readline is in use),  some  extra
+       configuration  may  be necessary. The INSTALL file for libreadline says
+       this:
+
+         "Readline uses the termcap functions, but does not link with the
+         termcap or curses library itself, allowing applications which link
+         with readline the to choose an appropriate library."
+
+       If your environment has not been set up so that an appropriate  library
+       is automatically included, you may need to add something like
+
+         LIBS="-ncurses"
+
+       immediately before the configure command.
+
+
+SEE ALSO
+
+       pcreapi(3), pcre16, pcre_config(3).
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 07 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREMATCHING(3)                                                PCREMATCHING(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE MATCHING ALGORITHMS
+
+       This document describes the two different algorithms that are available
+       in PCRE for matching a compiled regular expression against a given sub-
+       ject  string.  The  "standard"  algorithm  is  the  one provided by the
+       pcre_exec() and pcre16_exec() functions. These work in the same was  as
+       Perl's matching function, and provide a Perl-compatible matching opera-
+       tion. The just-in-time (JIT) optimization  that  is  described  in  the
+       pcrejit documentation is compatible with these functions.
+
+       An  alternative  algorithm  is  provided  by  the  pcre_dfa_exec()  and
+       pcre16_dfa_exec() functions; they operate in a different way,  and  are
+       not  Perl-compatible. This alternative has advantages and disadvantages
+       compared with the standard algorithm, and these are described below.
+
+       When there is only one possible way in which a given subject string can
+       match  a pattern, the two algorithms give the same answer. A difference
+       arises, however, when there are multiple possibilities. For example, if
+       the pattern
+
+         ^<.*>
+
+       is matched against the string
+
+         <something> <something else> <something further>
+
+       there are three possible answers. The standard algorithm finds only one
+       of them, whereas the alternative algorithm finds all three.
+
+
+REGULAR EXPRESSIONS AS TREES
+
+       The set of strings that are matched by a regular expression can be rep-
+       resented  as  a  tree structure. An unlimited repetition in the pattern
+       makes the tree of infinite size, but it is still a tree.  Matching  the
+       pattern  to a given subject string (from a given starting point) can be
+       thought of as a search of the tree.  There are two  ways  to  search  a
+       tree:  depth-first  and  breadth-first, and these correspond to the two
+       matching algorithms provided by PCRE.
+
+
+THE STANDARD MATCHING ALGORITHM
+
+       In the terminology of Jeffrey Friedl's book "Mastering Regular  Expres-
+       sions",  the  standard  algorithm  is an "NFA algorithm". It conducts a
+       depth-first search of the pattern tree. That is, it  proceeds  along  a
+       single path through the tree, checking that the subject matches what is
+       required. When there is a mismatch, the algorithm  tries  any  alterna-
+       tives  at  the  current point, and if they all fail, it backs up to the
+       previous branch point in the  tree,  and  tries  the  next  alternative
+       branch  at  that  level.  This often involves backing up (moving to the
+       left) in the subject string as well.  The  order  in  which  repetition
+       branches  are  tried  is controlled by the greedy or ungreedy nature of
+       the quantifier.
+
+       If a leaf node is reached, a matching string has  been  found,  and  at
+       that  point the algorithm stops. Thus, if there is more than one possi-
+       ble match, this algorithm returns the first one that it finds.  Whether
+       this  is the shortest, the longest, or some intermediate length depends
+       on the way the greedy and ungreedy repetition quantifiers are specified
+       in the pattern.
+
+       Because  it  ends  up  with a single path through the tree, it is rela-
+       tively straightforward for this algorithm to keep  track  of  the  sub-
+       strings  that  are  matched  by portions of the pattern in parentheses.
+       This provides support for capturing parentheses and back references.
+
+
+THE ALTERNATIVE MATCHING ALGORITHM
+
+       This algorithm conducts a breadth-first search of  the  tree.  Starting
+       from  the  first  matching  point  in the subject, it scans the subject
+       string from left to right, once, character by character, and as it does
+       this,  it remembers all the paths through the tree that represent valid
+       matches. In Friedl's terminology, this is a kind  of  "DFA  algorithm",
+       though  it is not implemented as a traditional finite state machine (it
+       keeps multiple states active simultaneously).
+
+       Although the general principle of this matching algorithm  is  that  it
+       scans  the subject string only once, without backtracking, there is one
+       exception: when a lookaround assertion is encountered,  the  characters
+       following  or  preceding  the  current  point  have to be independently
+       inspected.
+
+       The scan continues until either the end of the subject is  reached,  or
+       there  are  no more unterminated paths. At this point, terminated paths
+       represent the different matching possibilities (if there are none,  the
+       match  has  failed).   Thus,  if there is more than one possible match,
+       this algorithm finds all of them, and in particular, it finds the long-
+       est.  The  matches are returned in decreasing order of length. There is
+       an option to stop the algorithm after the first match (which is  neces-
+       sarily the shortest) is found.
+
+       Note that all the matches that are found start at the same point in the
+       subject. If the pattern
+
+         cat(er(pillar)?)?
+
+       is matched against the string "the caterpillar catchment",  the  result
+       will  be the three strings "caterpillar", "cater", and "cat" that start
+       at the fifth character of the subject. The algorithm does not automati-
+       cally move on to find matches that start at later positions.
+
+       There are a number of features of PCRE regular expressions that are not
+       supported by the alternative matching algorithm. They are as follows:
+
+       1. Because the algorithm finds all  possible  matches,  the  greedy  or
+       ungreedy  nature  of repetition quantifiers is not relevant. Greedy and
+       ungreedy quantifiers are treated in exactly the same way. However, pos-
+       sessive  quantifiers can make a difference when what follows could also
+       match what is quantified, for example in a pattern like this:
+
+         ^a++\w!
+
+       This pattern matches "aaab!" but not "aaa!", which would be matched  by
+       a  non-possessive quantifier. Similarly, if an atomic group is present,
+       it is matched as if it were a standalone pattern at the current  point,
+       and  the  longest match is then "locked in" for the rest of the overall
+       pattern.
+
+       2. When dealing with multiple paths through the tree simultaneously, it
+       is  not  straightforward  to  keep track of captured substrings for the
+       different matching possibilities, and  PCRE's  implementation  of  this
+       algorithm does not attempt to do this. This means that no captured sub-
+       strings are available.
+
+       3. Because no substrings are captured, back references within the  pat-
+       tern are not supported, and cause errors if encountered.
+
+       4.  For  the same reason, conditional expressions that use a backrefer-
+       ence as the condition or test for a specific group  recursion  are  not
+       supported.
+
+       5.  Because  many  paths  through the tree may be active, the \K escape
+       sequence, which resets the start of the match when encountered (but may
+       be  on  some  paths  and not on others), is not supported. It causes an
+       error if encountered.
+
+       6. Callouts are supported, but the value of the  capture_top  field  is
+       always 1, and the value of the capture_last field is always -1.
+
+       7.  The  \C  escape  sequence, which (in the standard algorithm) always
+       matches a single data unit, even in UTF-8 or UTF-16 modes, is not  sup-
+       ported  in these modes, because the alternative algorithm moves through
+       the subject string one character (not data unit) at  a  time,  for  all
+       active paths through the tree.
+
+       8.  Except for (*FAIL), the backtracking control verbs such as (*PRUNE)
+       are not supported. (*FAIL) is supported, and  behaves  like  a  failing
+       negative assertion.
+
+
+ADVANTAGES OF THE ALTERNATIVE ALGORITHM
+
+       Using  the alternative matching algorithm provides the following advan-
+       tages:
+
+       1. All possible matches (at a single point in the subject) are automat-
+       ically  found,  and  in particular, the longest match is found. To find
+       more than one match using the standard algorithm, you have to do kludgy
+       things with callouts.
+
+       2.  Because  the  alternative  algorithm  scans the subject string just
+       once, and never needs to backtrack (except for lookbehinds), it is pos-
+       sible  to  pass  very  long subject strings to the matching function in
+       several pieces, checking for partial matching each time. Although it is
+       possible  to  do multi-segment matching using the standard algorithm by
+       retaining partially matched substrings, it  is  more  complicated.  The
+       pcrepartial  documentation  gives  details of partial matching and dis-
+       cusses multi-segment matching.
+
+
+DISADVANTAGES OF THE ALTERNATIVE ALGORITHM
+
+       The alternative algorithm suffers from a number of disadvantages:
+
+       1. It is substantially slower than  the  standard  algorithm.  This  is
+       partly  because  it has to search for all possible matches, but is also
+       because it is less susceptible to optimization.
+
+       2. Capturing parentheses and back references are not supported.
+
+       3. Although atomic groups are supported, their use does not provide the
+       performance advantage that it does for the standard algorithm.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 08 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREAPI(3)                                                          PCREAPI(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+       #include <pcre.h>
+
+
+PCRE NATIVE API BASIC FUNCTIONS
+
+       pcre *pcre_compile(const char *pattern, int options,
+            const char **errptr, int *erroffset,
+            const unsigned char *tableptr);
+
+       pcre *pcre_compile2(const char *pattern, int options,
+            int *errorcodeptr,
+            const char **errptr, int *erroffset,
+            const unsigned char *tableptr);
+
+       pcre_extra *pcre_study(const pcre *code, int options,
+            const char **errptr);
+
+       void pcre_free_study(pcre_extra *extra);
+
+       int pcre_exec(const pcre *code, const pcre_extra *extra,
+            const char *subject, int length, int startoffset,
+            int options, int *ovector, int ovecsize);
+
+       int pcre_dfa_exec(const pcre *code, const pcre_extra *extra,
+            const char *subject, int length, int startoffset,
+            int options, int *ovector, int ovecsize,
+            int *workspace, int wscount);
+
+
+PCRE NATIVE API STRING EXTRACTION FUNCTIONS
+
+       int pcre_copy_named_substring(const pcre *code,
+            const char *subject, int *ovector,
+            int stringcount, const char *stringname,
+            char *buffer, int buffersize);
+
+       int pcre_copy_substring(const char *subject, int *ovector,
+            int stringcount, int stringnumber, char *buffer,
+            int buffersize);
+
+       int pcre_get_named_substring(const pcre *code,
+            const char *subject, int *ovector,
+            int stringcount, const char *stringname,
+            const char **stringptr);
+
+       int pcre_get_stringnumber(const pcre *code,
+            const char *name);
+
+       int pcre_get_stringtable_entries(const pcre *code,
+            const char *name, char **first, char **last);
+
+       int pcre_get_substring(const char *subject, int *ovector,
+            int stringcount, int stringnumber,
+            const char **stringptr);
+
+       int pcre_get_substring_list(const char *subject,
+            int *ovector, int stringcount, const char ***listptr);
+
+       void pcre_free_substring(const char *stringptr);
+
+       void pcre_free_substring_list(const char **stringptr);
+
+
+PCRE NATIVE API AUXILIARY FUNCTIONS
+
+       pcre_jit_stack *pcre_jit_stack_alloc(int startsize, int maxsize);
+
+       void pcre_jit_stack_free(pcre_jit_stack *stack);
+
+       void pcre_assign_jit_stack(pcre_extra *extra,
+            pcre_jit_callback callback, void *data);
+
+       const unsigned char *pcre_maketables(void);
+
+       int pcre_fullinfo(const pcre *code, const pcre_extra *extra,
+            int what, void *where);
+
+       int pcre_refcount(pcre *code, int adjust);
+
+       int pcre_config(int what, void *where);
+
+       const char *pcre_version(void);
+
+       int pcre_pattern_to_host_byte_order(pcre *code,
+            pcre_extra *extra, const unsigned char *tables);
+
+
+PCRE NATIVE API INDIRECTED FUNCTIONS
+
+       void *(*pcre_malloc)(size_t);
+
+       void (*pcre_free)(void *);
+
+       void *(*pcre_stack_malloc)(size_t);
+
+       void (*pcre_stack_free)(void *);
+
+       int (*pcre_callout)(pcre_callout_block *);
+
+
+PCRE 8-BIT AND 16-BIT LIBRARIES
+
+       From  release  8.30,  PCRE  can  be  compiled as a library for handling
+       16-bit character strings as  well  as,  or  instead  of,  the  original
+       library that handles 8-bit character strings. To avoid too much compli-
+       cation, this document describes the 8-bit versions  of  the  functions,
+       with only occasional references to the 16-bit library.
+
+       The  16-bit  functions  operate in the same way as their 8-bit counter-
+       parts; they just use different  data  types  for  their  arguments  and
+       results, and their names start with pcre16_ instead of pcre_. For every
+       option that has UTF8 in its name (for example, PCRE_UTF8), there  is  a
+       corresponding 16-bit name with UTF8 replaced by UTF16. This facility is
+       in fact just cosmetic; the 16-bit option names define the same bit val-
+       ues.
+
+       References to bytes and UTF-8 in this document should be read as refer-
+       ences to 16-bit data  quantities  and  UTF-16  when  using  the  16-bit
+       library,  unless specified otherwise. More details of the specific dif-
+       ferences for the 16-bit library are given in the pcre16 page.
+
+
+PCRE API OVERVIEW
+
+       PCRE has its own native API, which is described in this document. There
+       are  also some wrapper functions (for the 8-bit library only) that cor-
+       respond to the POSIX regular expression  API,  but  they  do  not  give
+       access  to  all  the functionality. They are described in the pcreposix
+       documentation. Both of these APIs define a set of C function  calls.  A
+       C++ wrapper (again for the 8-bit library only) is also distributed with
+       PCRE. It is documented in the pcrecpp page.
+
+       The native API C function prototypes are defined  in  the  header  file
+       pcre.h,  and  on Unix-like systems the (8-bit) library itself is called
+       libpcre. It can normally be accessed by adding -lpcre  to  the  command
+       for  linking an application that uses PCRE. The header file defines the
+       macros PCRE_MAJOR and PCRE_MINOR to contain the major and minor release
+       numbers  for the library. Applications can use these to include support
+       for different releases of PCRE.
+
+       In a Windows environment, if you want to statically link an application
+       program  against  a  non-dll  pcre.a  file, you must define PCRE_STATIC
+       before including pcre.h or pcrecpp.h, because otherwise  the  pcre_mal-
+       loc()   and   pcre_free()   exported   functions   will   be   declared
+       __declspec(dllimport), with unwanted results.
+
+       The  functions  pcre_compile(),  pcre_compile2(),   pcre_study(),   and
+       pcre_exec()  are used for compiling and matching regular expressions in
+       a Perl-compatible manner. A sample program that demonstrates  the  sim-
+       plest  way  of  using them is provided in the file called pcredemo.c in
+       the PCRE source distribution. A listing of this program is given in the
+       pcredemo  documentation, and the pcresample documentation describes how
+       to compile and run it.
+
+       Just-in-time compiler support is an optional feature of PCRE  that  can
+       be built in appropriate hardware environments. It greatly speeds up the
+       matching performance of  many  patterns.  Simple  programs  can  easily
+       request  that  it  be  used  if available, by setting an option that is
+       ignored when it is not relevant. More complicated programs  might  need
+       to     make    use    of    the    functions    pcre_jit_stack_alloc(),
+       pcre_jit_stack_free(), and pcre_assign_jit_stack() in order to  control
+       the  JIT  code's  memory  usage.   These functions are discussed in the
+       pcrejit documentation.
+
+       A second matching function, pcre_dfa_exec(), which is not Perl-compati-
+       ble,  is  also provided. This uses a different algorithm for the match-
+       ing. The alternative algorithm finds all possible matches (at  a  given
+       point  in  the  subject), and scans the subject just once (unless there
+       are lookbehind assertions). However, this  algorithm  does  not  return
+       captured  substrings.  A description of the two matching algorithms and
+       their advantages and disadvantages is given in the  pcrematching  docu-
+       mentation.
+
+       In  addition  to  the  main compiling and matching functions, there are
+       convenience functions for extracting captured substrings from a subject
+       string that is matched by pcre_exec(). They are:
+
+         pcre_copy_substring()
+         pcre_copy_named_substring()
+         pcre_get_substring()
+         pcre_get_named_substring()
+         pcre_get_substring_list()
+         pcre_get_stringnumber()
+         pcre_get_stringtable_entries()
+
+       pcre_free_substring() and pcre_free_substring_list() are also provided,
+       to free the memory used for extracted strings.
+
+       The function pcre_maketables() is used to  build  a  set  of  character
+       tables   in   the   current   locale  for  passing  to  pcre_compile(),
+       pcre_exec(), or pcre_dfa_exec(). This is an optional facility  that  is
+       provided  for  specialist  use.  Most  commonly,  no special tables are
+       passed, in which case internal tables that are generated when  PCRE  is
+       built are used.
+
+       The  function  pcre_fullinfo()  is used to find out information about a
+       compiled pattern. The function pcre_version() returns a  pointer  to  a
+       string containing the version of PCRE and its date of release.
+
+       The  function  pcre_refcount()  maintains  a  reference count in a data
+       block containing a compiled pattern. This is provided for  the  benefit
+       of object-oriented applications.
+
+       The  global  variables  pcre_malloc and pcre_free initially contain the
+       entry points of the standard malloc()  and  free()  functions,  respec-
+       tively. PCRE calls the memory management functions via these variables,
+       so a calling program can replace them if it  wishes  to  intercept  the
+       calls. This should be done before calling any PCRE functions.
+
+       The  global  variables  pcre_stack_malloc  and pcre_stack_free are also
+       indirections to memory management functions.  These  special  functions
+       are  used  only  when  PCRE is compiled to use the heap for remembering
+       data, instead of recursive function calls, when running the pcre_exec()
+       function.  See  the  pcrebuild  documentation  for details of how to do
+       this. It is a non-standard way of building PCRE, for  use  in  environ-
+       ments  that  have  limited stacks. Because of the greater use of memory
+       management, it runs more slowly. Separate  functions  are  provided  so
+       that  special-purpose  external  code  can  be used for this case. When
+       used, these functions are always called in a  stack-like  manner  (last
+       obtained,  first freed), and always for memory blocks of the same size.
+       There is a discussion about PCRE's stack usage in the  pcrestack  docu-
+       mentation.
+
+       The global variable pcre_callout initially contains NULL. It can be set
+       by the caller to a "callout" function, which PCRE  will  then  call  at
+       specified  points during a matching operation. Details are given in the
+       pcrecallout documentation.
+
+
+NEWLINES
+
+       PCRE supports five different conventions for indicating line breaks  in
+       strings:  a  single  CR (carriage return) character, a single LF (line-
+       feed) character, the two-character sequence CRLF, any of the three pre-
+       ceding,  or any Unicode newline sequence. The Unicode newline sequences
+       are the three just mentioned, plus the single characters  VT  (vertical
+       tab, U+000B), FF (form feed, U+000C), NEL (next line, U+0085), LS (line
+       separator, U+2028), and PS (paragraph separator, U+2029).
+
+       Each of the first three conventions is used by at least  one  operating
+       system  as its standard newline sequence. When PCRE is built, a default
+       can be specified.  The default default is LF, which is the  Unix  stan-
+       dard.  When  PCRE  is run, the default can be overridden, either when a
+       pattern is compiled, or when it is matched.
+
+       At compile time, the newline convention can be specified by the options
+       argument  of  pcre_compile(), or it can be specified by special text at
+       the start of the pattern itself; this overrides any other settings. See
+       the pcrepattern page for details of the special character sequences.
+
+       In the PCRE documentation the word "newline" is used to mean "the char-
+       acter or pair of characters that indicate a line break". The choice  of
+       newline  convention  affects  the  handling of the dot, circumflex, and
+       dollar metacharacters, the handling of #-comments in /x mode, and, when
+       CRLF  is a recognized line ending sequence, the match position advance-
+       ment for a non-anchored pattern. There is more detail about this in the
+       section on pcre_exec() options below.
+
+       The  choice of newline convention does not affect the interpretation of
+       the \n or \r escape sequences, nor does  it  affect  what  \R  matches,
+       which is controlled in a similar way, but by separate options.
+
+
+MULTITHREADING
+
+       The  PCRE  functions  can be used in multi-threading applications, with
+       the  proviso  that  the  memory  management  functions  pointed  to  by
+       pcre_malloc, pcre_free, pcre_stack_malloc, and pcre_stack_free, and the
+       callout function pointed to by pcre_callout, are shared by all threads.
+
+       The compiled form of a regular expression is not altered during  match-
+       ing, so the same compiled pattern can safely be used by several threads
+       at once.
+
+       If the just-in-time optimization feature is being used, it needs  sepa-
+       rate  memory stack areas for each thread. See the pcrejit documentation
+       for more details.
+
+
+SAVING PRECOMPILED PATTERNS FOR LATER USE
+
+       The compiled form of a regular expression can be saved and re-used at a
+       later  time,  possibly by a different program, and even on a host other
+       than the one on which  it  was  compiled.  Details  are  given  in  the
+       pcreprecompile  documentation,  which  includes  a  description  of the
+       pcre_pattern_to_host_byte_order() function. However, compiling a  regu-
+       lar  expression  with one version of PCRE for use with a different ver-
+       sion is not guaranteed to work and may cause crashes.
+
+
+CHECKING BUILD-TIME OPTIONS
+
+       int pcre_config(int what, void *where);
+
+       The function pcre_config() makes it possible for a PCRE client to  dis-
+       cover which optional features have been compiled into the PCRE library.
+       The pcrebuild documentation has more details about these optional  fea-
+       tures.
+
+       The  first  argument  for pcre_config() is an integer, specifying which
+       information is required; the second argument is a pointer to a variable
+       into  which  the  information  is placed. The returned value is zero on
+       success, or the negative error code PCRE_ERROR_BADOPTION if  the  value
+       in  the  first argument is not recognized. The following information is
+       available:
+
+         PCRE_CONFIG_UTF8
+
+       The output is an integer that is set to one if UTF-8 support is  avail-
+       able;  otherwise  it  is  set  to  zero. If this option is given to the
+       16-bit  version  of  this  function,  pcre16_config(),  the  result  is
+       PCRE_ERROR_BADOPTION.
+
+         PCRE_CONFIG_UTF16
+
+       The output is an integer that is set to one if UTF-16 support is avail-
+       able; otherwise it is set to zero. This value should normally be  given
+       to the 16-bit version of this function, pcre16_config(). If it is given
+       to the 8-bit version of this function, the result is  PCRE_ERROR_BADOP-
+       TION.
+
+         PCRE_CONFIG_UNICODE_PROPERTIES
+
+       The  output  is  an  integer  that is set to one if support for Unicode
+       character properties is available; otherwise it is set to zero.
+
+         PCRE_CONFIG_JIT
+
+       The output is an integer that is set to one if support for just-in-time
+       compiling is available; otherwise it is set to zero.
+
+         PCRE_CONFIG_JITTARGET
+
+       The  output is a pointer to a zero-terminated "const char *" string. If
+       JIT support is available, the string contains the name of the architec-
+       ture  for  which the JIT compiler is configured, for example "x86 32bit
+       (little endian + unaligned)". If JIT  support  is  not  available,  the
+       result is NULL.
+
+         PCRE_CONFIG_NEWLINE
+
+       The  output  is  an integer whose value specifies the default character
+       sequence that is recognized as meaning "newline". The four values  that
+       are supported are: 10 for LF, 13 for CR, 3338 for CRLF, -2 for ANYCRLF,
+       and -1 for ANY.  Though they are derived from ASCII,  the  same  values
+       are returned in EBCDIC environments. The default should normally corre-
+       spond to the standard sequence for your operating system.
+
+         PCRE_CONFIG_BSR
+
+       The output is an integer whose value indicates what character sequences
+       the  \R  escape sequence matches by default. A value of 0 means that \R
+       matches any Unicode line ending sequence; a value of 1  means  that  \R
+       matches only CR, LF, or CRLF. The default can be overridden when a pat-
+       tern is compiled or matched.
+
+         PCRE_CONFIG_LINK_SIZE
+
+       The output is an integer that contains the number  of  bytes  used  for
+       internal  linkage  in  compiled  regular  expressions.  For  the  8-bit
+       library, the value can be 2, 3, or 4. For the 16-bit library, the value
+       is either 2 or 4 and is still a number of bytes. The default value of 2
+       is sufficient for all but the most massive patterns,  since  it  allows
+       the  compiled  pattern  to  be  up to 64K in size.  Larger values allow
+       larger regular expressions to be compiled, at  the  expense  of  slower
+       matching.
+
+         PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
+
+       The  output  is  an integer that contains the threshold above which the
+       POSIX interface uses malloc() for output vectors. Further  details  are
+       given in the pcreposix documentation.
+
+         PCRE_CONFIG_MATCH_LIMIT
+
+       The  output is a long integer that gives the default limit for the num-
+       ber of internal matching function calls  in  a  pcre_exec()  execution.
+       Further details are given with pcre_exec() below.
+
+         PCRE_CONFIG_MATCH_LIMIT_RECURSION
+
+       The output is a long integer that gives the default limit for the depth
+       of  recursion  when  calling  the  internal  matching  function  in   a
+       pcre_exec()  execution.  Further  details  are  given  with pcre_exec()
+       below.
+
+         PCRE_CONFIG_STACKRECURSE
+
+       The output is an integer that is set to one if internal recursion  when
+       running pcre_exec() is implemented by recursive function calls that use
+       the stack to remember their state. This is the usual way that  PCRE  is
+       compiled. The output is zero if PCRE was compiled to use blocks of data
+       on the  heap  instead  of  recursive  function  calls.  In  this  case,
+       pcre_stack_malloc  and  pcre_stack_free  are  called  to  manage memory
+       blocks on the heap, thus avoiding the use of the stack.
+
+
+COMPILING A PATTERN
+
+       pcre *pcre_compile(const char *pattern, int options,
+            const char **errptr, int *erroffset,
+            const unsigned char *tableptr);
+
+       pcre *pcre_compile2(const char *pattern, int options,
+            int *errorcodeptr,
+            const char **errptr, int *erroffset,
+            const unsigned char *tableptr);
+
+       Either of the functions pcre_compile() or pcre_compile2() can be called
+       to compile a pattern into an internal form. The only difference between
+       the two interfaces is that pcre_compile2() has an additional  argument,
+       errorcodeptr,  via  which  a  numerical  error code can be returned. To
+       avoid too much repetition, we refer just to pcre_compile()  below,  but
+       the information applies equally to pcre_compile2().
+
+       The pattern is a C string terminated by a binary zero, and is passed in
+       the pattern argument. A pointer to a single block  of  memory  that  is
+       obtained  via  pcre_malloc is returned. This contains the compiled code
+       and related data. The pcre type is defined for the returned block; this
+       is a typedef for a structure whose contents are not externally defined.
+       It is up to the caller to free the memory (via pcre_free) when it is no
+       longer required.
+
+       Although  the compiled code of a PCRE regex is relocatable, that is, it
+       does not depend on memory location, the complete pcre data block is not
+       fully  relocatable, because it may contain a copy of the tableptr argu-
+       ment, which is an address (see below).
+
+       The options argument contains various bit settings that affect the com-
+       pilation.  It  should be zero if no options are required. The available
+       options are described below. Some of them (in  particular,  those  that
+       are  compatible with Perl, but some others as well) can also be set and
+       unset from within the pattern (see  the  detailed  description  in  the
+       pcrepattern  documentation). For those options that can be different in
+       different parts of the pattern, the contents of  the  options  argument
+       specifies their settings at the start of compilation and execution. The
+       PCRE_ANCHORED, PCRE_BSR_xxx, PCRE_NEWLINE_xxx, PCRE_NO_UTF8_CHECK,  and
+       PCRE_NO_START_OPTIMIZE  options  can  be set at the time of matching as
+       well as at compile time.
+
+       If errptr is NULL, pcre_compile() returns NULL immediately.  Otherwise,
+       if  compilation  of  a  pattern fails, pcre_compile() returns NULL, and
+       sets the variable pointed to by errptr to point to a textual error mes-
+       sage. This is a static string that is part of the library. You must not
+       try to free it. Normally, the offset from the start of the  pattern  to
+       the  byte  that  was  being  processed when the error was discovered is
+       placed in the variable pointed to by erroffset, which must not be  NULL
+       (if  it is, an immediate error is given). However, for an invalid UTF-8
+       string, the offset is that of the first byte of the failing character.
+
+       Some errors are not detected until the whole pattern has been  scanned;
+       in  these  cases,  the offset passed back is the length of the pattern.
+       Note that the offset is in bytes, not characters, even in  UTF-8  mode.
+       It may sometimes point into the middle of a UTF-8 character.
+
+       If  pcre_compile2()  is  used instead of pcre_compile(), and the error-
+       codeptr argument is not NULL, a non-zero error code number is  returned
+       via  this argument in the event of an error. This is in addition to the
+       textual error message. Error codes and messages are listed below.
+
+       If the final argument, tableptr, is NULL, PCRE uses a  default  set  of
+       character  tables  that  are  built  when  PCRE  is compiled, using the
+       default C locale. Otherwise, tableptr must be an address  that  is  the
+       result  of  a  call to pcre_maketables(). This value is stored with the
+       compiled pattern, and used again by pcre_exec(), unless  another  table
+       pointer is passed to it. For more discussion, see the section on locale
+       support below.
+
+       This code fragment shows a typical straightforward  call  to  pcre_com-
+       pile():
+
+         pcre *re;
+         const char *error;
+         int erroffset;
+         re = pcre_compile(
+           "^A.*Z",          /* the pattern */
+           0,                /* default options */
+           &error,           /* for error message */
+           &erroffset,       /* for error offset */
+           NULL);            /* use default character tables */
+
+       The  following  names  for option bits are defined in the pcre.h header
+       file:
+
+         PCRE_ANCHORED
+
+       If this bit is set, the pattern is forced to be "anchored", that is, it
+       is  constrained to match only at the first matching point in the string
+       that is being searched (the "subject string"). This effect can also  be
+       achieved  by appropriate constructs in the pattern itself, which is the
+       only way to do it in Perl.
+
+         PCRE_AUTO_CALLOUT
+
+       If this bit is set, pcre_compile() automatically inserts callout items,
+       all  with  number  255, before each pattern item. For discussion of the
+       callout facility, see the pcrecallout documentation.
+
+         PCRE_BSR_ANYCRLF
+         PCRE_BSR_UNICODE
+
+       These options (which are mutually exclusive) control what the \R escape
+       sequence  matches.  The choice is either to match only CR, LF, or CRLF,
+       or to match any Unicode newline sequence. The default is specified when
+       PCRE is built. It can be overridden from within the pattern, or by set-
+       ting an option when a compiled pattern is matched.
+
+         PCRE_CASELESS
+
+       If this bit is set, letters in the pattern match both upper  and  lower
+       case  letters.  It  is  equivalent  to  Perl's /i option, and it can be
+       changed within a pattern by a (?i) option setting. In UTF-8 mode,  PCRE
+       always  understands the concept of case for characters whose values are
+       less than 128, so caseless matching is always possible. For  characters
+       with  higher  values,  the concept of case is supported if PCRE is com-
+       piled with Unicode property support, but not otherwise. If you want  to
+       use  caseless  matching  for  characters 128 and above, you must ensure
+       that PCRE is compiled with Unicode property support  as  well  as  with
+       UTF-8 support.
+
+         PCRE_DOLLAR_ENDONLY
+
+       If  this bit is set, a dollar metacharacter in the pattern matches only
+       at the end of the subject string. Without this option,  a  dollar  also
+       matches  immediately before a newline at the end of the string (but not
+       before any other newlines). The PCRE_DOLLAR_ENDONLY option  is  ignored
+       if  PCRE_MULTILINE  is  set.   There is no equivalent to this option in
+       Perl, and no way to set it within a pattern.
+
+         PCRE_DOTALL
+
+       If this bit is set, a dot metacharacter in the pattern matches a  char-
+       acter of any value, including one that indicates a newline. However, it
+       only ever matches one character, even if newlines are  coded  as  CRLF.
+       Without  this option, a dot does not match when the current position is
+       at a newline. This option is equivalent to Perl's /s option, and it can
+       be  changed within a pattern by a (?s) option setting. A negative class
+       such as [^a] always matches newline characters, independent of the set-
+       ting of this option.
+
+         PCRE_DUPNAMES
+
+       If  this  bit is set, names used to identify capturing subpatterns need
+       not be unique. This can be helpful for certain types of pattern when it
+       is  known  that  only  one instance of the named subpattern can ever be
+       matched. There are more details of named subpatterns  below;  see  also
+       the pcrepattern documentation.
+
+         PCRE_EXTENDED
+
+       If  this  bit  is  set,  white space data characters in the pattern are
+       totally ignored except when escaped or inside a character class.  White
+       space does not include the VT character (code 11). In addition, charac-
+       ters between an unescaped # outside a character class and the next new-
+       line,  inclusive,  are  also  ignored.  This is equivalent to Perl's /x
+       option, and it can be changed within a pattern by a  (?x)  option  set-
+       ting.
+
+       Which  characters  are  interpreted  as  newlines  is controlled by the
+       options passed to pcre_compile() or by a special sequence at the  start
+       of  the  pattern, as described in the section entitled "Newline conven-
+       tions" in the pcrepattern documentation. Note that the end of this type
+       of  comment  is  a  literal  newline  sequence  in  the pattern; escape
+       sequences that happen to represent a newline do not count.
+
+       This option makes it possible to include  comments  inside  complicated
+       patterns.   Note,  however,  that this applies only to data characters.
+       White space  characters  may  never  appear  within  special  character
+       sequences in a pattern, for example within the sequence (?( that intro-
+       duces a conditional subpattern.
+
+         PCRE_EXTRA
+
+       This option was invented in order to turn on  additional  functionality
+       of  PCRE  that  is  incompatible with Perl, but it is currently of very
+       little use. When set, any backslash in a pattern that is followed by  a
+       letter  that  has  no  special  meaning causes an error, thus reserving
+       these combinations for future expansion. By  default,  as  in  Perl,  a
+       backslash  followed by a letter with no special meaning is treated as a
+       literal. (Perl can, however, be persuaded to give an error for this, by
+       running  it with the -w option.) There are at present no other features
+       controlled by this option. It can also be set by a (?X) option  setting
+       within a pattern.
+
+         PCRE_FIRSTLINE
+
+       If  this  option  is  set,  an  unanchored pattern is required to match
+       before or at the first  newline  in  the  subject  string,  though  the
+       matched text may continue over the newline.
+
+         PCRE_JAVASCRIPT_COMPAT
+
+       If this option is set, PCRE's behaviour is changed in some ways so that
+       it is compatible with JavaScript rather than Perl. The changes  are  as
+       follows:
+
+       (1)  A  lone  closing square bracket in a pattern causes a compile-time
+       error, because this is illegal in JavaScript (by default it is  treated
+       as a data character). Thus, the pattern AB]CD becomes illegal when this
+       option is set.
+
+       (2) At run time, a back reference to an unset subpattern group  matches
+       an  empty  string (by default this causes the current matching alterna-
+       tive to fail). A pattern such as (\1)(a) succeeds when this  option  is
+       set  (assuming  it can find an "a" in the subject), whereas it fails by
+       default, for Perl compatibility.
+
+       (3) \U matches an upper case "U" character; by default \U causes a com-
+       pile time error (Perl uses \U to upper case subsequent characters).
+
+       (4) \u matches a lower case "u" character unless it is followed by four
+       hexadecimal digits, in which case the hexadecimal  number  defines  the
+       code  point  to match. By default, \u causes a compile time error (Perl
+       uses it to upper case the following character).
+
+       (5) \x matches a lower case "x" character unless it is followed by  two
+       hexadecimal  digits,  in  which case the hexadecimal number defines the
+       code point to match. By default, as in Perl, a  hexadecimal  number  is
+       always expected after \x, but it may have zero, one, or two digits (so,
+       for example, \xz matches a binary zero character followed by z).
+
+         PCRE_MULTILINE
+
+       By default, PCRE treats the subject string as consisting  of  a  single
+       line  of characters (even if it actually contains newlines). The "start
+       of line" metacharacter (^) matches only at the  start  of  the  string,
+       while  the  "end  of line" metacharacter ($) matches only at the end of
+       the string, or before a terminating newline (unless PCRE_DOLLAR_ENDONLY
+       is set). This is the same as Perl.
+
+       When  PCRE_MULTILINE  it  is set, the "start of line" and "end of line"
+       constructs match immediately following or immediately  before  internal
+       newlines  in  the  subject string, respectively, as well as at the very
+       start and end. This is equivalent to Perl's /m option, and  it  can  be
+       changed within a pattern by a (?m) option setting. If there are no new-
+       lines in a subject string, or no occurrences of ^ or $  in  a  pattern,
+       setting PCRE_MULTILINE has no effect.
+
+         PCRE_NEWLINE_CR
+         PCRE_NEWLINE_LF
+         PCRE_NEWLINE_CRLF
+         PCRE_NEWLINE_ANYCRLF
+         PCRE_NEWLINE_ANY
+
+       These  options  override the default newline definition that was chosen
+       when PCRE was built. Setting the first or the second specifies  that  a
+       newline  is  indicated  by a single character (CR or LF, respectively).
+       Setting PCRE_NEWLINE_CRLF specifies that a newline is indicated by  the
+       two-character  CRLF  sequence.  Setting  PCRE_NEWLINE_ANYCRLF specifies
+       that any of the three preceding sequences should be recognized. Setting
+       PCRE_NEWLINE_ANY  specifies that any Unicode newline sequence should be
+       recognized. The Unicode newline sequences are the three just mentioned,
+       plus  the  single  characters VT (vertical tab, U+000B), FF (form feed,
+       U+000C), NEL (next line, U+0085), LS (line separator, U+2028),  and  PS
+       (paragraph  separator, U+2029). For the 8-bit library, the last two are
+       recognized only in UTF-8 mode.
+
+       The newline setting in the  options  word  uses  three  bits  that  are
+       treated as a number, giving eight possibilities. Currently only six are
+       used (default plus the five values above). This means that if  you  set
+       more  than one newline option, the combination may or may not be sensi-
+       ble. For example, PCRE_NEWLINE_CR with PCRE_NEWLINE_LF is equivalent to
+       PCRE_NEWLINE_CRLF,  but other combinations may yield unused numbers and
+       cause an error.
+
+       The only time that a line break in a pattern  is  specially  recognized
+       when  compiling is when PCRE_EXTENDED is set. CR and LF are white space
+       characters, and so are ignored in this mode. Also, an unescaped #  out-
+       side  a  character class indicates a comment that lasts until after the
+       next line break sequence. In other circumstances, line break  sequences
+       in patterns are treated as literal data.
+
+       The newline option that is set at compile time becomes the default that
+       is used for pcre_exec() and pcre_dfa_exec(), but it can be overridden.
+
+         PCRE_NO_AUTO_CAPTURE
+
+       If this option is set, it disables the use of numbered capturing paren-
+       theses  in the pattern. Any opening parenthesis that is not followed by
+       ? behaves as if it were followed by ?: but named parentheses can  still
+       be  used  for  capturing  (and  they acquire numbers in the usual way).
+       There is no equivalent of this option in Perl.
+
+         NO_START_OPTIMIZE
+
+       This is an option that acts at matching time; that is, it is really  an
+       option  for  pcre_exec()  or  pcre_dfa_exec().  If it is set at compile
+       time, it is remembered with the compiled pattern and assumed at  match-
+       ing  time.  For  details  see  the discussion of PCRE_NO_START_OPTIMIZE
+       below.
+
+         PCRE_UCP
+
+       This option changes the way PCRE processes \B, \b, \D, \d, \S, \s,  \W,
+       \w,  and  some  of  the POSIX character classes. By default, only ASCII
+       characters are recognized, but if PCRE_UCP is set,  Unicode  properties
+       are  used instead to classify characters. More details are given in the
+       section on generic character types in the pcrepattern page. If you  set
+       PCRE_UCP,  matching  one of the items it affects takes much longer. The
+       option is available only if PCRE has been compiled with  Unicode  prop-
+       erty support.
+
+         PCRE_UNGREEDY
+
+       This  option  inverts  the "greediness" of the quantifiers so that they
+       are not greedy by default, but become greedy if followed by "?". It  is
+       not  compatible  with Perl. It can also be set by a (?U) option setting
+       within the pattern.
+
+         PCRE_UTF8
+
+       This option causes PCRE to regard both the pattern and the  subject  as
+       strings of UTF-8 characters instead of single-byte strings. However, it
+       is available only when PCRE is built to include UTF  support.  If  not,
+       the  use  of  this option provokes an error. Details of how this option
+       changes the behaviour of PCRE are given in the pcreunicode page.
+
+         PCRE_NO_UTF8_CHECK
+
+       When PCRE_UTF8 is set, the validity of the pattern as a UTF-8 string is
+       automatically  checked.  There  is  a  discussion about the validity of
+       UTF-8 strings in the pcreunicode page. If an invalid UTF-8 sequence  is
+       found,  pcre_compile()  returns an error. If you already know that your
+       pattern is valid, and you want to skip this check for performance  rea-
+       sons,  you  can set the PCRE_NO_UTF8_CHECK option.  When it is set, the
+       effect of passing an invalid UTF-8 string as a pattern is undefined. It
+       may  cause  your  program  to  crash. Note that this option can also be
+       passed to pcre_exec() and pcre_dfa_exec(),  to  suppress  the  validity
+       checking of subject strings.
+
+
+COMPILATION ERROR CODES
+
+       The  following  table  lists  the  error  codes than may be returned by
+       pcre_compile2(), along with the error messages that may be returned  by
+       both  compiling  functions.  Note  that error messages are always 8-bit
+       ASCII strings, even in 16-bit mode. As PCRE has developed,  some  error
+       codes  have  fallen  out of use. To avoid confusion, they have not been
+       re-used.
+
+          0  no error
+          1  \ at end of pattern
+          2  \c at end of pattern
+          3  unrecognized character follows \
+          4  numbers out of order in {} quantifier
+          5  number too big in {} quantifier
+          6  missing terminating ] for character class
+          7  invalid escape sequence in character class
+          8  range out of order in character class
+          9  nothing to repeat
+         10  [this code is not in use]
+         11  internal error: unexpected repeat
+         12  unrecognized character after (? or (?-
+         13  POSIX named classes are supported only within a class
+         14  missing )
+         15  reference to non-existent subpattern
+         16  erroffset passed as NULL
+         17  unknown option bit(s) set
+         18  missing ) after comment
+         19  [this code is not in use]
+         20  regular expression is too large
+         21  failed to get memory
+         22  unmatched parentheses
+         23  internal error: code overflow
+         24  unrecognized character after (?<
+         25  lookbehind assertion is not fixed length
+         26  malformed number or name after (?(
+         27  conditional group contains more than two branches
+         28  assertion expected after (?(
+         29  (?R or (?[+-]digits must be followed by )
+         30  unknown POSIX class name
+         31  POSIX collating elements are not supported
+         32  this version of PCRE is compiled without UTF support
+         33  [this code is not in use]
+         34  character value in \x{...} sequence is too large
+         35  invalid condition (?(0)
+         36  \C not allowed in lookbehind assertion
+         37  PCRE does not support \L, \l, \N{name}, \U, or \u
+         38  number after (?C is > 255
+         39  closing ) for (?C expected
+         40  recursive call could loop indefinitely
+         41  unrecognized character after (?P
+         42  syntax error in subpattern name (missing terminator)
+         43  two named subpatterns have the same name
+         44  invalid UTF-8 string (specifically UTF-8)
+         45  support for \P, \p, and \X has not been compiled
+         46  malformed \P or \p sequence
+         47  unknown property name after \P or \p
+         48  subpattern name is too long (maximum 32 characters)
+         49  too many named subpatterns (maximum 10000)
+         50  [this code is not in use]
+         51  octal value is greater than \377 in 8-bit non-UTF-8 mode
+         52  internal error: overran compiling workspace
+         53  internal error: previously-checked referenced subpattern
+               not found
+         54  DEFINE group contains more than one branch
+         55  repeating a DEFINE group is not allowed
+         56  inconsistent NEWLINE options
+         57  \g is not followed by a braced, angle-bracketed, or quoted
+               name/number or by a plain number
+         58  a numbered reference must not be zero
+         59  an argument is not allowed for (*ACCEPT), (*FAIL), or (*COMMIT)
+         60  (*VERB) not recognized
+         61  number is too big
+         62  subpattern name expected
+         63  digit expected after (?+
+         64  ] is an invalid data character in JavaScript compatibility mode
+         65  different names for subpatterns of the same number are
+               not allowed
+         66  (*MARK) must have an argument
+         67  this version of PCRE is not compiled with Unicode property
+               support
+         68  \c must be followed by an ASCII character
+         69  \k is not followed by a braced, angle-bracketed, or quoted name
+         70  internal error: unknown opcode in find_fixedlength()
+         71  \N is not supported in a class
+         72  too many forward references
+         73  disallowed Unicode code point (>= 0xd800 && <= 0xdfff)
+         74  invalid UTF-16 string (specifically UTF-16)
+         75  name is too long in (*MARK), (*PRUNE), (*SKIP), or (*THEN)
+         76  character value in \u.... sequence is too large
+
+       The numbers 32 and 10000 in errors 48 and 49  are  defaults;  different
+       values may be used if the limits were changed when PCRE was built.
+
+
+STUDYING A PATTERN
+
+       pcre_extra *pcre_study(const pcre *code, int options
+            const char **errptr);
+
+       If  a  compiled  pattern is going to be used several times, it is worth
+       spending more time analyzing it in order to speed up the time taken for
+       matching.  The function pcre_study() takes a pointer to a compiled pat-
+       tern as its first argument. If studying the pattern produces additional
+       information  that  will  help speed up matching, pcre_study() returns a
+       pointer to a pcre_extra block, in which the study_data field points  to
+       the results of the study.
+
+       The  returned  value  from  pcre_study()  can  be  passed  directly  to
+       pcre_exec() or pcre_dfa_exec(). However, a pcre_extra block  also  con-
+       tains  other  fields  that can be set by the caller before the block is
+       passed; these are described below in the section on matching a pattern.
+
+       If studying the  pattern  does  not  produce  any  useful  information,
+       pcre_study() returns NULL. In that circumstance, if the calling program
+       wants  to  pass  any  of   the   other   fields   to   pcre_exec()   or
+       pcre_dfa_exec(), it must set up its own pcre_extra block.
+
+       The  second  argument  of  pcre_study() contains option bits. There are
+       three options:
+
+         PCRE_STUDY_JIT_COMPILE
+         PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+         PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+
+       If any of these are set, and the just-in-time  compiler  is  available,
+       the  pattern  is  further compiled into machine code that executes much
+       faster than the pcre_exec()  interpretive  matching  function.  If  the
+       just-in-time  compiler is not available, these options are ignored. All
+       other bits in the options argument must be zero.
+
+       JIT compilation is a heavyweight optimization. It can  take  some  time
+       for  patterns  to  be analyzed, and for one-off matches and simple pat-
+       terns the benefit of faster execution might be offset by a much  slower
+       study time.  Not all patterns can be optimized by the JIT compiler. For
+       those that cannot be handled, matching automatically falls back to  the
+       pcre_exec()  interpreter.  For more details, see the pcrejit documenta-
+       tion.
+
+       The third argument for pcre_study() is a pointer for an error  message.
+       If  studying  succeeds  (even  if no data is returned), the variable it
+       points to is set to NULL. Otherwise it is set to  point  to  a  textual
+       error message. This is a static string that is part of the library. You
+       must not try to free it. You should test the  error  pointer  for  NULL
+       after calling pcre_study(), to be sure that it has run successfully.
+
+       When  you are finished with a pattern, you can free the memory used for
+       the study data by calling pcre_free_study(). This function was added to
+       the  API  for  release  8.20. For earlier versions, the memory could be
+       freed with pcre_free(), just like the pattern itself. This  will  still
+       work  in  cases where JIT optimization is not used, but it is advisable
+       to change to the new function when convenient.
+
+       This is a typical way in which pcre_study() is used (except that  in  a
+       real application there should be tests for errors):
+
+         int rc;
+         pcre *re;
+         pcre_extra *sd;
+         re = pcre_compile("pattern", 0, &error, &erroroffset, NULL);
+         sd = pcre_study(
+           re,             /* result of pcre_compile() */
+           0,              /* no options */
+           &error);        /* set to NULL or points to a message */
+         rc = pcre_exec(   /* see below for details of pcre_exec() options */
+           re, sd, "subject", 7, 0, 0, ovector, 30);
+         ...
+         pcre_free_study(sd);
+         pcre_free(re);
+
+       Studying a pattern does two things: first, a lower bound for the length
+       of subject string that is needed to match the pattern is computed. This
+       does not mean that there are any strings of that length that match, but
+       it does guarantee that no shorter strings match. The value is  used  by
+       pcre_exec()  and  pcre_dfa_exec()  to  avoid  wasting time by trying to
+       match strings that are shorter than the lower bound. You can  find  out
+       the value in a calling program via the pcre_fullinfo() function.
+
+       Studying a pattern is also useful for non-anchored patterns that do not
+       have a single fixed starting character. A bitmap of  possible  starting
+       bytes  is  created. This speeds up finding a position in the subject at
+       which to start matching. (In 16-bit mode, the bitmap is used for 16-bit
+       values less than 256.)
+
+       These  two optimizations apply to both pcre_exec() and pcre_dfa_exec(),
+       and the information is also used by the JIT  compiler.   The  optimiza-
+       tions can be disabled by setting the PCRE_NO_START_OPTIMIZE option when
+       calling pcre_exec() or pcre_dfa_exec(), but if this is done, JIT execu-
+       tion  is  also disabled. You might want to do this if your pattern con-
+       tains callouts or (*MARK) and you want to make use of these  facilities
+       in    cases    where    matching   fails.   See   the   discussion   of
+       PCRE_NO_START_OPTIMIZE below.
+
+
+LOCALE SUPPORT
+
+       PCRE handles caseless matching, and determines whether  characters  are
+       letters,  digits, or whatever, by reference to a set of tables, indexed
+       by character value. When running in UTF-8 mode, this  applies  only  to
+       characters  with  codes  less than 128. By default, higher-valued codes
+       never match escapes such as \w or \d, but they can be tested with \p if
+       PCRE  is  built with Unicode character property support. Alternatively,
+       the PCRE_UCP option can be set at compile  time;  this  causes  \w  and
+       friends to use Unicode property support instead of built-in tables. The
+       use of locales with Unicode is discouraged. If you are handling charac-
+       ters  with codes greater than 128, you should either use UTF-8 and Uni-
+       code, or use locales, but not try to mix the two.
+
+       PCRE contains an internal set of tables that are used  when  the  final
+       argument  of  pcre_compile()  is  NULL.  These  are sufficient for many
+       applications.  Normally, the internal tables recognize only ASCII char-
+       acters. However, when PCRE is built, it is possible to cause the inter-
+       nal tables to be rebuilt in the default "C" locale of the local system,
+       which may cause them to be different.
+
+       The  internal tables can always be overridden by tables supplied by the
+       application that calls PCRE. These may be created in a different locale
+       from  the  default.  As more and more applications change to using Uni-
+       code, the need for this locale support is expected to die away.
+
+       External tables are built by calling  the  pcre_maketables()  function,
+       which  has no arguments, in the relevant locale. The result can then be
+       passed to pcre_compile() or pcre_exec()  as  often  as  necessary.  For
+       example,  to  build  and use tables that are appropriate for the French
+       locale (where accented characters with  values  greater  than  128  are
+       treated as letters), the following code could be used:
+
+         setlocale(LC_CTYPE, "fr_FR");
+         tables = pcre_maketables();
+         re = pcre_compile(..., tables);
+
+       The  locale  name "fr_FR" is used on Linux and other Unix-like systems;
+       if you are using Windows, the name for the French locale is "french".
+
+       When pcre_maketables() runs, the tables are built  in  memory  that  is
+       obtained  via  pcre_malloc. It is the caller's responsibility to ensure
+       that the memory containing the tables remains available for as long  as
+       it is needed.
+
+       The pointer that is passed to pcre_compile() is saved with the compiled
+       pattern, and the same tables are used via this pointer by  pcre_study()
+       and normally also by pcre_exec(). Thus, by default, for any single pat-
+       tern, compilation, studying and matching all happen in the same locale,
+       but different patterns can be compiled in different locales.
+
+       It  is  possible to pass a table pointer or NULL (indicating the use of
+       the internal tables) to pcre_exec(). Although  not  intended  for  this
+       purpose,  this facility could be used to match a pattern in a different
+       locale from the one in which it was compiled. Passing table pointers at
+       run time is discussed below in the section on matching a pattern.
+
+
+INFORMATION ABOUT A PATTERN
+
+       int pcre_fullinfo(const pcre *code, const pcre_extra *extra,
+            int what, void *where);
+
+       The  pcre_fullinfo() function returns information about a compiled pat-
+       tern. It replaces the pcre_info() function, which was removed from  the
+       library at version 8.30, after more than 10 years of obsolescence.
+
+       The  first  argument  for  pcre_fullinfo() is a pointer to the compiled
+       pattern. The second argument is the result of pcre_study(), or NULL  if
+       the  pattern  was not studied. The third argument specifies which piece
+       of information is required, and the fourth argument is a pointer  to  a
+       variable  to  receive  the  data. The yield of the function is zero for
+       success, or one of the following negative numbers:
+
+         PCRE_ERROR_NULL           the argument code was NULL
+                                   the argument where was NULL
+         PCRE_ERROR_BADMAGIC       the "magic number" was not found
+         PCRE_ERROR_BADENDIANNESS  the pattern was compiled with different
+                                   endianness
+         PCRE_ERROR_BADOPTION      the value of what was invalid
+
+       The "magic number" is placed at the start of each compiled  pattern  as
+       an  simple check against passing an arbitrary memory pointer. The endi-
+       anness error can occur if a compiled pattern is saved and reloaded on a
+       different  host.  Here  is a typical call of pcre_fullinfo(), to obtain
+       the length of the compiled pattern:
+
+         int rc;
+         size_t length;
+         rc = pcre_fullinfo(
+           re,               /* result of pcre_compile() */
+           sd,               /* result of pcre_study(), or NULL */
+           PCRE_INFO_SIZE,   /* what is required */
+           &length);         /* where to put the data */
+
+       The possible values for the third argument are defined in  pcre.h,  and
+       are as follows:
+
+         PCRE_INFO_BACKREFMAX
+
+       Return  the  number  of  the highest back reference in the pattern. The
+       fourth argument should point to an int variable. Zero  is  returned  if
+       there are no back references.
+
+         PCRE_INFO_CAPTURECOUNT
+
+       Return  the  number of capturing subpatterns in the pattern. The fourth
+       argument should point to an int variable.
+
+         PCRE_INFO_DEFAULT_TABLES
+
+       Return a pointer to the internal default character tables within  PCRE.
+       The  fourth  argument should point to an unsigned char * variable. This
+       information call is provided for internal use by the pcre_study() func-
+       tion.  External  callers  can  cause PCRE to use its internal tables by
+       passing a NULL table pointer.
+
+         PCRE_INFO_FIRSTBYTE
+
+       Return information about the first data unit of any matched string, for
+       a  non-anchored  pattern.  (The name of this option refers to the 8-bit
+       library, where data units are bytes.) The fourth argument should  point
+       to an int variable.
+
+       If  there  is  a  fixed first value, for example, the letter "c" from a
+       pattern such as (cat|cow|coyote), its value is returned. In  the  8-bit
+       library,  the  value is always less than 256; in the 16-bit library the
+       value can be up to 0xffff.
+
+       If there is no fixed first value, and if either
+
+       (a) the pattern was compiled with the PCRE_MULTILINE option, and  every
+       branch starts with "^", or
+
+       (b) every branch of the pattern starts with ".*" and PCRE_DOTALL is not
+       set (if it were set, the pattern would be anchored),
+
+       -1 is returned, indicating that the pattern matches only at  the  start
+       of  a  subject string or after any newline within the string. Otherwise
+       -2 is returned. For anchored patterns, -2 is returned.
+
+         PCRE_INFO_FIRSTTABLE
+
+       If the pattern was studied, and this resulted in the construction of  a
+       256-bit  table indicating a fixed set of values for the first data unit
+       in any matching string, a pointer to the table is  returned.  Otherwise
+       NULL  is returned. The fourth argument should point to an unsigned char
+       * variable.
+
+         PCRE_INFO_HASCRORLF
+
+       Return 1 if the pattern contains any explicit  matches  for  CR  or  LF
+       characters,  otherwise  0.  The  fourth argument should point to an int
+       variable. An explicit match is either a literal CR or LF character,  or
+       \r or \n.
+
+         PCRE_INFO_JCHANGED
+
+       Return  1  if  the (?J) or (?-J) option setting is used in the pattern,
+       otherwise 0. The fourth argument should point to an int variable.  (?J)
+       and (?-J) set and unset the local PCRE_DUPNAMES option, respectively.
+
+         PCRE_INFO_JIT
+
+       Return  1  if  the pattern was studied with one of the JIT options, and
+       just-in-time compiling was successful. The fourth argument should point
+       to  an  int variable. A return value of 0 means that JIT support is not
+       available in this version of PCRE, or that the pattern was not  studied
+       with  a JIT option, or that the JIT compiler could not handle this par-
+       ticular pattern. See the pcrejit documentation for details of what  can
+       and cannot be handled.
+
+         PCRE_INFO_JITSIZE
+
+       If  the  pattern was successfully studied with a JIT option, return the
+       size of the JIT compiled code, otherwise return zero. The fourth  argu-
+       ment should point to a size_t variable.
+
+         PCRE_INFO_LASTLITERAL
+
+       Return  the value of the rightmost literal data unit that must exist in
+       any matched string, other than at its start, if such a value  has  been
+       recorded. The fourth argument should point to an int variable. If there
+       is no such value, -1 is returned. For anchored patterns, a last literal
+       value  is recorded only if it follows something of variable length. For
+       example, for the pattern /^a\d+z\d+/ the returned value is "z", but for
+       /^a\dz\d/ the returned value is -1.
+
+         PCRE_INFO_MAXLOOKBEHIND
+
+       Return  the  number of characters (NB not bytes) in the longest lookbe-
+       hind assertion in the pattern. Note that the simple assertions  \b  and
+       \B  require a one-character lookbehind. This information is useful when
+       doing multi-segment matching using the partial matching facilities.
+
+         PCRE_INFO_MINLENGTH
+
+       If the pattern was studied and a minimum length  for  matching  subject
+       strings  was  computed,  its  value is returned. Otherwise the returned
+       value is -1. The value is a number of characters, which in  UTF-8  mode
+       may  be  different from the number of bytes. The fourth argument should
+       point to an int variable. A non-negative value is a lower bound to  the
+       length  of  any  matching  string. There may not be any strings of that
+       length that do actually match, but every string that does match  is  at
+       least that long.
+
+         PCRE_INFO_NAMECOUNT
+         PCRE_INFO_NAMEENTRYSIZE
+         PCRE_INFO_NAMETABLE
+
+       PCRE  supports the use of named as well as numbered capturing parenthe-
+       ses. The names are just an additional way of identifying the  parenthe-
+       ses, which still acquire numbers. Several convenience functions such as
+       pcre_get_named_substring() are provided for  extracting  captured  sub-
+       strings  by  name. It is also possible to extract the data directly, by
+       first converting the name to a number in order to  access  the  correct
+       pointers in the output vector (described with pcre_exec() below). To do
+       the conversion, you need  to  use  the  name-to-number  map,  which  is
+       described by these three values.
+
+       The map consists of a number of fixed-size entries. PCRE_INFO_NAMECOUNT
+       gives the number of entries, and PCRE_INFO_NAMEENTRYSIZE gives the size
+       of  each  entry;  both  of  these  return  an int value. The entry size
+       depends on the length of the longest name. PCRE_INFO_NAMETABLE  returns
+       a pointer to the first entry of the table. This is a pointer to char in
+       the 8-bit library, where the first two bytes of each entry are the num-
+       ber  of  the capturing parenthesis, most significant byte first. In the
+       16-bit library, the pointer points to 16-bit data units, the  first  of
+       which  contains  the  parenthesis  number. The rest of the entry is the
+       corresponding name, zero terminated.
+
+       The names are in alphabetical order. Duplicate names may appear if  (?|
+       is used to create multiple groups with the same number, as described in
+       the section on duplicate subpattern numbers in  the  pcrepattern  page.
+       Duplicate  names  for  subpatterns with different numbers are permitted
+       only if PCRE_DUPNAMES is set. In all cases  of  duplicate  names,  they
+       appear  in  the table in the order in which they were found in the pat-
+       tern. In the absence of (?| this is the  order  of  increasing  number;
+       when (?| is used this is not necessarily the case because later subpat-
+       terns may have lower numbers.
+
+       As a simple example of the name/number table,  consider  the  following
+       pattern after compilation by the 8-bit library (assume PCRE_EXTENDED is
+       set, so white space - including newlines - is ignored):
+
+         (?<date> (?<year>(\d\d)?\d\d) -
+         (?<month>\d\d) - (?<day>\d\d) )
+
+       There are four named subpatterns, so the table has  four  entries,  and
+       each  entry  in the table is eight bytes long. The table is as follows,
+       with non-printing bytes shows in hexadecimal, and undefined bytes shown
+       as ??:
+
+         00 01 d  a  t  e  00 ??
+         00 05 d  a  y  00 ?? ??
+         00 04 m  o  n  t  h  00
+         00 02 y  e  a  r  00 ??
+
+       When  writing  code  to  extract  data from named subpatterns using the
+       name-to-number map, remember that the length of the entries  is  likely
+       to be different for each compiled pattern.
+
+         PCRE_INFO_OKPARTIAL
+
+       Return  1  if  the  pattern  can  be  used  for  partial  matching with
+       pcre_exec(), otherwise 0. The fourth argument should point  to  an  int
+       variable.  From  release  8.00,  this  always  returns  1,  because the
+       restrictions that previously applied  to  partial  matching  have  been
+       lifted.  The  pcrepartial documentation gives details of partial match-
+       ing.
+
+         PCRE_INFO_OPTIONS
+
+       Return a copy of the options with which the pattern was  compiled.  The
+       fourth  argument  should  point to an unsigned long int variable. These
+       option bits are those specified in the call to pcre_compile(), modified
+       by any top-level option settings at the start of the pattern itself. In
+       other words, they are the options that will be in force  when  matching
+       starts.  For  example, if the pattern /(?im)abc(?-i)d/ is compiled with
+       the PCRE_EXTENDED option, the result is PCRE_CASELESS,  PCRE_MULTILINE,
+       and PCRE_EXTENDED.
+
+       A  pattern  is  automatically  anchored by PCRE if all of its top-level
+       alternatives begin with one of the following:
+
+         ^     unless PCRE_MULTILINE is set
+         \A    always
+         \G    always
+         .*    if PCRE_DOTALL is set and there are no back
+                 references to the subpattern in which .* appears
+
+       For such patterns, the PCRE_ANCHORED bit is set in the options returned
+       by pcre_fullinfo().
+
+         PCRE_INFO_SIZE
+
+       Return  the size of the compiled pattern in bytes (for both libraries).
+       The fourth argument should point to a size_t variable. This value  does
+       not  include  the  size  of  the  pcre  structure  that  is returned by
+       pcre_compile(). The value that is passed as the argument  to  pcre_mal-
+       loc()  when pcre_compile() is getting memory in which to place the com-
+       piled data is the value returned by this option plus the  size  of  the
+       pcre  structure. Studying a compiled pattern, with or without JIT, does
+       not alter the value returned by this option.
+
+         PCRE_INFO_STUDYSIZE
+
+       Return the size in bytes of the data block pointed to by the study_data
+       field  in  a  pcre_extra  block.  If pcre_extra is NULL, or there is no
+       study data, zero is returned. The fourth argument  should  point  to  a
+       size_t  variable. The study_data field is set by pcre_study() to record
+       information that will speed  up  matching  (see  the  section  entitled
+       "Studying a pattern" above). The format of the study_data block is pri-
+       vate, but its length is made available via this option so that  it  can
+       be  saved  and  restored  (see  the  pcreprecompile  documentation  for
+       details).
+
+
+REFERENCE COUNTS
+
+       int pcre_refcount(pcre *code, int adjust);
+
+       The pcre_refcount() function is used to maintain a reference  count  in
+       the data block that contains a compiled pattern. It is provided for the
+       benefit of applications that  operate  in  an  object-oriented  manner,
+       where different parts of the application may be using the same compiled
+       pattern, but you want to free the block when they are all done.
+
+       When a pattern is compiled, the reference count field is initialized to
+       zero.   It is changed only by calling this function, whose action is to
+       add the adjust value (which may be positive or  negative)  to  it.  The
+       yield of the function is the new value. However, the value of the count
+       is constrained to lie between 0 and 65535, inclusive. If the new  value
+       is outside these limits, it is forced to the appropriate limit value.
+
+       Except  when it is zero, the reference count is not correctly preserved
+       if a pattern is compiled on one host and then  transferred  to  a  host
+       whose byte-order is different. (This seems a highly unlikely scenario.)
+
+
+MATCHING A PATTERN: THE TRADITIONAL FUNCTION
+
+       int pcre_exec(const pcre *code, const pcre_extra *extra,
+            const char *subject, int length, int startoffset,
+            int options, int *ovector, int ovecsize);
+
+       The  function pcre_exec() is called to match a subject string against a
+       compiled pattern, which is passed in the code argument. If the  pattern
+       was  studied,  the  result  of  the study should be passed in the extra
+       argument. You can call pcre_exec() with the same code and  extra  argu-
+       ments  as  many  times as you like, in order to match different subject
+       strings with the same pattern.
+
+       This function is the main matching facility  of  the  library,  and  it
+       operates  in  a  Perl-like  manner. For specialist use there is also an
+       alternative matching function, which is described below in the  section
+       about the pcre_dfa_exec() function.
+
+       In  most applications, the pattern will have been compiled (and option-
+       ally studied) in the same process that calls pcre_exec().  However,  it
+       is possible to save compiled patterns and study data, and then use them
+       later in different processes, possibly even on different hosts.  For  a
+       discussion about this, see the pcreprecompile documentation.
+
+       Here is an example of a simple call to pcre_exec():
+
+         int rc;
+         int ovector[30];
+         rc = pcre_exec(
+           re,             /* result of pcre_compile() */
+           NULL,           /* we didn't study the pattern */
+           "some string",  /* the subject string */
+           11,             /* the length of the subject string */
+           0,              /* start at offset 0 in the subject */
+           0,              /* default options */
+           ovector,        /* vector of integers for substring information */
+           30);            /* number of elements (NOT size in bytes) */
+
+   Extra data for pcre_exec()
+
+       If  the  extra argument is not NULL, it must point to a pcre_extra data
+       block. The pcre_study() function returns such a block (when it  doesn't
+       return  NULL), but you can also create one for yourself, and pass addi-
+       tional information in it. The pcre_extra block contains  the  following
+       fields (not necessarily in this order):
+
+         unsigned long int flags;
+         void *study_data;
+         void *executable_jit;
+         unsigned long int match_limit;
+         unsigned long int match_limit_recursion;
+         void *callout_data;
+         const unsigned char *tables;
+         unsigned char **mark;
+
+       In  the  16-bit  version  of  this  structure,  the mark field has type
+       "PCRE_UCHAR16 **".
+
+       The flags field is used to specify which of the other fields  are  set.
+       The flag bits are:
+
+         PCRE_EXTRA_CALLOUT_DATA
+         PCRE_EXTRA_EXECUTABLE_JIT
+         PCRE_EXTRA_MARK
+         PCRE_EXTRA_MATCH_LIMIT
+         PCRE_EXTRA_MATCH_LIMIT_RECURSION
+         PCRE_EXTRA_STUDY_DATA
+         PCRE_EXTRA_TABLES
+
+       Other  flag  bits should be set to zero. The study_data field and some-
+       times the executable_jit field are set in the pcre_extra block that  is
+       returned  by pcre_study(), together with the appropriate flag bits. You
+       should not set these yourself, but you may add to the block by  setting
+       other fields and their corresponding flag bits.
+
+       The match_limit field provides a means of preventing PCRE from using up
+       a vast amount of resources when running patterns that are not going  to
+       match,  but  which  have  a very large number of possibilities in their
+       search trees. The classic example is a pattern that uses nested  unlim-
+       ited repeats.
+
+       Internally,  pcre_exec() uses a function called match(), which it calls
+       repeatedly (sometimes recursively). The limit  set  by  match_limit  is
+       imposed  on the number of times this function is called during a match,
+       which has the effect of limiting the amount of  backtracking  that  can
+       take place. For patterns that are not anchored, the count restarts from
+       zero for each position in the subject string.
+
+       When pcre_exec() is called with a pattern that was successfully studied
+       with  a  JIT  option, the way that the matching is executed is entirely
+       different.  However, there is still the possibility of runaway matching
+       that goes on for a very long time, and so the match_limit value is also
+       used in this case (but in a different way) to limit how long the match-
+       ing can continue.
+
+       The  default  value  for  the  limit can be set when PCRE is built; the
+       default default is 10 million, which handles all but the  most  extreme
+       cases.  You  can  override  the  default by suppling pcre_exec() with a
+       pcre_extra    block    in    which    match_limit    is    set,     and
+       PCRE_EXTRA_MATCH_LIMIT  is  set  in  the  flags  field. If the limit is
+       exceeded, pcre_exec() returns PCRE_ERROR_MATCHLIMIT.
+
+       The match_limit_recursion field is similar to match_limit, but  instead
+       of limiting the total number of times that match() is called, it limits
+       the depth of recursion. The recursion depth is a  smaller  number  than
+       the  total number of calls, because not all calls to match() are recur-
+       sive.  This limit is of use only if it is set smaller than match_limit.
+
+       Limiting the recursion depth limits the amount of  machine  stack  that
+       can  be used, or, when PCRE has been compiled to use memory on the heap
+       instead of the stack, the amount of heap memory that can be used.  This
+       limit  is not relevant, and is ignored, when matching is done using JIT
+       compiled code.
+
+       The default value for match_limit_recursion can be  set  when  PCRE  is
+       built;  the  default  default  is  the  same  value  as the default for
+       match_limit. You can override the default by suppling pcre_exec()  with
+       a   pcre_extra   block  in  which  match_limit_recursion  is  set,  and
+       PCRE_EXTRA_MATCH_LIMIT_RECURSION is set in  the  flags  field.  If  the
+       limit is exceeded, pcre_exec() returns PCRE_ERROR_RECURSIONLIMIT.
+
+       The  callout_data  field is used in conjunction with the "callout" fea-
+       ture, and is described in the pcrecallout documentation.
+
+       The tables field  is  used  to  pass  a  character  tables  pointer  to
+       pcre_exec();  this overrides the value that is stored with the compiled
+       pattern. A non-NULL value is stored with the compiled pattern  only  if
+       custom  tables  were  supplied to pcre_compile() via its tableptr argu-
+       ment.  If NULL is passed to pcre_exec() using this mechanism, it forces
+       PCRE's  internal  tables  to be used. This facility is helpful when re-
+       using patterns that have been saved after compiling  with  an  external
+       set  of  tables,  because  the  external tables might be at a different
+       address when pcre_exec() is called. See the  pcreprecompile  documenta-
+       tion for a discussion of saving compiled patterns for later use.
+
+       If  PCRE_EXTRA_MARK  is  set in the flags field, the mark field must be
+       set to point to a suitable variable. If the pattern contains any  back-
+       tracking  control verbs such as (*MARK:NAME), and the execution ends up
+       with a name to pass back, a pointer to the  name  string  (zero  termi-
+       nated)  is  placed  in  the  variable pointed to by the mark field. The
+       names are within the compiled pattern; if you wish  to  retain  such  a
+       name  you must copy it before freeing the memory of a compiled pattern.
+       If there is no name to pass back, the variable pointed to by  the  mark
+       field  is  set  to NULL. For details of the backtracking control verbs,
+       see the section entitled "Backtracking control" in the pcrepattern doc-
+       umentation.
+
+   Option bits for pcre_exec()
+
+       The  unused  bits of the options argument for pcre_exec() must be zero.
+       The only bits that may  be  set  are  PCRE_ANCHORED,  PCRE_NEWLINE_xxx,
+       PCRE_NOTBOL,    PCRE_NOTEOL,    PCRE_NOTEMPTY,   PCRE_NOTEMPTY_ATSTART,
+       PCRE_NO_START_OPTIMIZE,  PCRE_NO_UTF8_CHECK,   PCRE_PARTIAL_HARD,   and
+       PCRE_PARTIAL_SOFT.
+
+       If  the  pattern  was successfully studied with one of the just-in-time
+       (JIT) compile options, the only supported options for JIT execution are
+       PCRE_NO_UTF8_CHECK,     PCRE_NOTBOL,     PCRE_NOTEOL,    PCRE_NOTEMPTY,
+       PCRE_NOTEMPTY_ATSTART, PCRE_PARTIAL_HARD, and PCRE_PARTIAL_SOFT. If  an
+       unsupported  option  is  used, JIT execution is disabled and the normal
+       interpretive code in pcre_exec() is run.
+
+         PCRE_ANCHORED
+
+       The PCRE_ANCHORED option limits pcre_exec() to matching  at  the  first
+       matching  position.  If  a  pattern was compiled with PCRE_ANCHORED, or
+       turned out to be anchored by virtue of its contents, it cannot be  made
+       unachored at matching time.
+
+         PCRE_BSR_ANYCRLF
+         PCRE_BSR_UNICODE
+
+       These options (which are mutually exclusive) control what the \R escape
+       sequence matches. The choice is either to match only CR, LF,  or  CRLF,
+       or  to  match  any Unicode newline sequence. These options override the
+       choice that was made or defaulted when the pattern was compiled.
+
+         PCRE_NEWLINE_CR
+         PCRE_NEWLINE_LF
+         PCRE_NEWLINE_CRLF
+         PCRE_NEWLINE_ANYCRLF
+         PCRE_NEWLINE_ANY
+
+       These options override  the  newline  definition  that  was  chosen  or
+       defaulted  when the pattern was compiled. For details, see the descrip-
+       tion of pcre_compile()  above.  During  matching,  the  newline  choice
+       affects  the  behaviour  of the dot, circumflex, and dollar metacharac-
+       ters. It may also alter the way the match position is advanced after  a
+       match failure for an unanchored pattern.
+
+       When  PCRE_NEWLINE_CRLF,  PCRE_NEWLINE_ANYCRLF,  or PCRE_NEWLINE_ANY is
+       set, and a match attempt for an unanchored pattern fails when the  cur-
+       rent  position  is  at  a  CRLF  sequence,  and the pattern contains no
+       explicit matches for  CR  or  LF  characters,  the  match  position  is
+       advanced by two characters instead of one, in other words, to after the
+       CRLF.
+
+       The above rule is a compromise that makes the most common cases work as
+       expected.  For  example,  if  the  pattern  is .+A (and the PCRE_DOTALL
+       option is not set), it does not match the string "\r\nA" because, after
+       failing  at the start, it skips both the CR and the LF before retrying.
+       However, the pattern [\r\n]A does match that string,  because  it  con-
+       tains an explicit CR or LF reference, and so advances only by one char-
+       acter after the first failure.
+
+       An explicit match for CR of LF is either a literal appearance of one of
+       those  characters,  or  one  of the \r or \n escape sequences. Implicit
+       matches such as [^X] do not count, nor does \s (which includes  CR  and
+       LF in the characters that it matches).
+
+       Notwithstanding  the above, anomalous effects may still occur when CRLF
+       is a valid newline sequence and explicit \r or \n escapes appear in the
+       pattern.
+
+         PCRE_NOTBOL
+
+       This option specifies that first character of the subject string is not
+       the beginning of a line, so the  circumflex  metacharacter  should  not
+       match  before it. Setting this without PCRE_MULTILINE (at compile time)
+       causes circumflex never to match. This option affects only  the  behav-
+       iour of the circumflex metacharacter. It does not affect \A.
+
+         PCRE_NOTEOL
+
+       This option specifies that the end of the subject string is not the end
+       of a line, so the dollar metacharacter should not match it nor  (except
+       in  multiline mode) a newline immediately before it. Setting this with-
+       out PCRE_MULTILINE (at compile time) causes dollar never to match. This
+       option  affects only the behaviour of the dollar metacharacter. It does
+       not affect \Z or \z.
+
+         PCRE_NOTEMPTY
+
+       An empty string is not considered to be a valid match if this option is
+       set.  If  there are alternatives in the pattern, they are tried. If all
+       the alternatives match the empty string, the entire  match  fails.  For
+       example, if the pattern
+
+         a?b?
+
+       is  applied  to  a  string not beginning with "a" or "b", it matches an
+       empty string at the start of the subject. With PCRE_NOTEMPTY set,  this
+       match is not valid, so PCRE searches further into the string for occur-
+       rences of "a" or "b".
+
+         PCRE_NOTEMPTY_ATSTART
+
+       This is like PCRE_NOTEMPTY, except that an empty string match  that  is
+       not  at  the  start  of  the  subject  is  permitted. If the pattern is
+       anchored, such a match can occur only if the pattern contains \K.
+
+       Perl    has    no    direct    equivalent    of    PCRE_NOTEMPTY     or
+       PCRE_NOTEMPTY_ATSTART,  but  it  does  make a special case of a pattern
+       match of the empty string within its split() function, and  when  using
+       the  /g  modifier.  It  is  possible  to emulate Perl's behaviour after
+       matching a null string by first trying the match again at the same off-
+       set  with  PCRE_NOTEMPTY_ATSTART  and  PCRE_ANCHORED,  and then if that
+       fails, by advancing the starting offset (see below) and trying an ordi-
+       nary  match  again. There is some code that demonstrates how to do this
+       in the pcredemo sample program. In the most general case, you  have  to
+       check  to  see  if the newline convention recognizes CRLF as a newline,
+       and if so, and the current character is CR followed by LF, advance  the
+       starting offset by two characters instead of one.
+
+         PCRE_NO_START_OPTIMIZE
+
+       There  are a number of optimizations that pcre_exec() uses at the start
+       of a match, in order to speed up the process. For  example,  if  it  is
+       known that an unanchored match must start with a specific character, it
+       searches the subject for that character, and fails  immediately  if  it
+       cannot  find  it,  without actually running the main matching function.
+       This means that a special item such as (*COMMIT) at the start of a pat-
+       tern  is  not  considered until after a suitable starting point for the
+       match has been found. When callouts or (*MARK) items are in use,  these
+       "start-up" optimizations can cause them to be skipped if the pattern is
+       never actually used. The start-up optimizations are in  effect  a  pre-
+       scan of the subject that takes place before the pattern is run.
+
+       The  PCRE_NO_START_OPTIMIZE option disables the start-up optimizations,
+       possibly causing performance to suffer,  but  ensuring  that  in  cases
+       where  the  result is "no match", the callouts do occur, and that items
+       such as (*COMMIT) and (*MARK) are considered at every possible starting
+       position  in  the  subject  string. If PCRE_NO_START_OPTIMIZE is set at
+       compile time,  it  cannot  be  unset  at  matching  time.  The  use  of
+       PCRE_NO_START_OPTIMIZE disables JIT execution; when it is set, matching
+       is always done using interpretively.
+
+       Setting PCRE_NO_START_OPTIMIZE can change the  outcome  of  a  matching
+       operation.  Consider the pattern
+
+         (*COMMIT)ABC
+
+       When  this  is  compiled, PCRE records the fact that a match must start
+       with the character "A". Suppose the subject  string  is  "DEFABC".  The
+       start-up  optimization  scans along the subject, finds "A" and runs the
+       first match attempt from there. The (*COMMIT) item means that the  pat-
+       tern  must  match the current starting position, which in this case, it
+       does. However, if the same match  is  run  with  PCRE_NO_START_OPTIMIZE
+       set,  the  initial  scan  along the subject string does not happen. The
+       first match attempt is run starting  from  "D"  and  when  this  fails,
+       (*COMMIT)  prevents  any  further  matches  being tried, so the overall
+       result is "no match". If the pattern is studied,  more  start-up  opti-
+       mizations  may  be  used. For example, a minimum length for the subject
+       may be recorded. Consider the pattern
+
+         (*MARK:A)(X|Y)
+
+       The minimum length for a match is one  character.  If  the  subject  is
+       "ABC",  there  will  be  attempts  to  match "ABC", "BC", "C", and then
+       finally an empty string.  If the pattern is studied, the final  attempt
+       does  not take place, because PCRE knows that the subject is too short,
+       and so the (*MARK) is never encountered.  In this  case,  studying  the
+       pattern  does  not  affect the overall match result, which is still "no
+       match", but it does affect the auxiliary information that is returned.
+
+         PCRE_NO_UTF8_CHECK
+
+       When PCRE_UTF8 is set at compile time, the validity of the subject as a
+       UTF-8  string is automatically checked when pcre_exec() is subsequently
+       called.  The entire string is checked before any other processing takes
+       place.  The  value  of  startoffset  is  also checked to ensure that it
+       points to the start of a UTF-8 character. There is a  discussion  about
+       the  validity  of  UTF-8 strings in the pcreunicode page. If an invalid
+       sequence  of  bytes   is   found,   pcre_exec()   returns   the   error
+       PCRE_ERROR_BADUTF8 or, if PCRE_PARTIAL_HARD is set and the problem is a
+       truncated character at the end of the subject, PCRE_ERROR_SHORTUTF8. In
+       both  cases, information about the precise nature of the error may also
+       be returned (see the descriptions of these errors in the section  enti-
+       tled  Error return values from pcre_exec() below).  If startoffset con-
+       tains a value that does not point to the start of a UTF-8 character (or
+       to the end of the subject), PCRE_ERROR_BADUTF8_OFFSET is returned.
+
+       If  you  already  know that your subject is valid, and you want to skip
+       these   checks   for   performance   reasons,   you   can    set    the
+       PCRE_NO_UTF8_CHECK  option  when calling pcre_exec(). You might want to
+       do this for the second and subsequent calls to pcre_exec() if  you  are
+       making  repeated  calls  to  find  all  the matches in a single subject
+       string. However, you should be  sure  that  the  value  of  startoffset
+       points  to  the  start of a character (or the end of the subject). When
+       PCRE_NO_UTF8_CHECK is set, the effect of passing an invalid string as a
+       subject  or  an invalid value of startoffset is undefined. Your program
+       may crash.
+
+         PCRE_PARTIAL_HARD
+         PCRE_PARTIAL_SOFT
+
+       These options turn on the partial matching feature. For backwards  com-
+       patibility,  PCRE_PARTIAL is a synonym for PCRE_PARTIAL_SOFT. A partial
+       match occurs if the end of the subject string is reached  successfully,
+       but  there  are not enough subject characters to complete the match. If
+       this happens when PCRE_PARTIAL_SOFT (but not PCRE_PARTIAL_HARD) is set,
+       matching  continues  by  testing any remaining alternatives. Only if no
+       complete match can be found is PCRE_ERROR_PARTIAL returned  instead  of
+       PCRE_ERROR_NOMATCH.  In  other  words,  PCRE_PARTIAL_SOFT says that the
+       caller is prepared to handle a partial match, but only if  no  complete
+       match can be found.
+
+       If  PCRE_PARTIAL_HARD  is  set, it overrides PCRE_PARTIAL_SOFT. In this
+       case, if a partial match  is  found,  pcre_exec()  immediately  returns
+       PCRE_ERROR_PARTIAL,  without  considering  any  other  alternatives. In
+       other words, when PCRE_PARTIAL_HARD is set, a partial match is  consid-
+       ered to be more important that an alternative complete match.
+
+       In  both  cases,  the portion of the string that was inspected when the
+       partial match was found is set as the first matching string. There is a
+       more  detailed  discussion  of partial and multi-segment matching, with
+       examples, in the pcrepartial documentation.
+
+   The string to be matched by pcre_exec()
+
+       The subject string is passed to pcre_exec() as a pointer in subject,  a
+       length  in  bytes in length, and a starting byte offset in startoffset.
+       If this is  negative  or  greater  than  the  length  of  the  subject,
+       pcre_exec()  returns  PCRE_ERROR_BADOFFSET. When the starting offset is
+       zero, the search for a match starts at the beginning  of  the  subject,
+       and this is by far the most common case. In UTF-8 mode, the byte offset
+       must point to the start of a UTF-8 character (or the end  of  the  sub-
+       ject).  Unlike  the pattern string, the subject may contain binary zero
+       bytes.
+
+       A non-zero starting offset is useful when searching for  another  match
+       in  the same subject by calling pcre_exec() again after a previous suc-
+       cess.  Setting startoffset differs from just passing over  a  shortened
+       string  and  setting  PCRE_NOTBOL  in the case of a pattern that begins
+       with any kind of lookbehind. For example, consider the pattern
+
+         \Biss\B
+
+       which finds occurrences of "iss" in the middle of  words.  (\B  matches
+       only  if  the  current position in the subject is not a word boundary.)
+       When applied to the string "Mississipi" the first call  to  pcre_exec()
+       finds  the  first  occurrence. If pcre_exec() is called again with just
+       the remainder of the subject,  namely  "issipi",  it  does  not  match,
+       because \B is always false at the start of the subject, which is deemed
+       to be a word boundary. However, if pcre_exec()  is  passed  the  entire
+       string again, but with startoffset set to 4, it finds the second occur-
+       rence of "iss" because it is able to look behind the starting point  to
+       discover that it is preceded by a letter.
+
+       Finding  all  the  matches  in a subject is tricky when the pattern can
+       match an empty string. It is possible to emulate Perl's /g behaviour by
+       first   trying   the   match   again  at  the  same  offset,  with  the
+       PCRE_NOTEMPTY_ATSTART and  PCRE_ANCHORED  options,  and  then  if  that
+       fails,  advancing  the  starting  offset  and  trying an ordinary match
+       again. There is some code that demonstrates how to do this in the pcre-
+       demo sample program. In the most general case, you have to check to see
+       if the newline convention recognizes CRLF as a newline, and if so,  and
+       the current character is CR followed by LF, advance the starting offset
+       by two characters instead of one.
+
+       If a non-zero starting offset is passed when the pattern  is  anchored,
+       one attempt to match at the given offset is made. This can only succeed
+       if the pattern does not require the match to be at  the  start  of  the
+       subject.
+
+   How pcre_exec() returns captured substrings
+
+       In  general, a pattern matches a certain portion of the subject, and in
+       addition, further substrings from the subject  may  be  picked  out  by
+       parts  of  the  pattern.  Following the usage in Jeffrey Friedl's book,
+       this is called "capturing" in what follows, and the  phrase  "capturing
+       subpattern"  is  used for a fragment of a pattern that picks out a sub-
+       string. PCRE supports several other kinds of  parenthesized  subpattern
+       that do not cause substrings to be captured.
+
+       Captured substrings are returned to the caller via a vector of integers
+       whose address is passed in ovector. The number of elements in the  vec-
+       tor  is  passed in ovecsize, which must be a non-negative number. Note:
+       this argument is NOT the size of ovector in bytes.
+
+       The first two-thirds of the vector is used to pass back  captured  sub-
+       strings,  each  substring using a pair of integers. The remaining third
+       of the vector is used as workspace by pcre_exec() while  matching  cap-
+       turing  subpatterns, and is not available for passing back information.
+       The number passed in ovecsize should always be a multiple of three.  If
+       it is not, it is rounded down.
+
+       When  a  match  is successful, information about captured substrings is
+       returned in pairs of integers, starting at the  beginning  of  ovector,
+       and  continuing  up  to two-thirds of its length at the most. The first
+       element of each pair is set to the byte offset of the  first  character
+       in  a  substring, and the second is set to the byte offset of the first
+       character after the end of a substring. Note: these values  are  always
+       byte offsets, even in UTF-8 mode. They are not character counts.
+
+       The  first  pair  of  integers, ovector[0] and ovector[1], identify the
+       portion of the subject string matched by the entire pattern.  The  next
+       pair  is  used for the first capturing subpattern, and so on. The value
+       returned by pcre_exec() is one more than the highest numbered pair that
+       has  been  set.  For example, if two substrings have been captured, the
+       returned value is 3. If there are no capturing subpatterns, the  return
+       value from a successful match is 1, indicating that just the first pair
+       of offsets has been set.
+
+       If a capturing subpattern is matched repeatedly, it is the last portion
+       of the string that it matched that is returned.
+
+       If  the vector is too small to hold all the captured substring offsets,
+       it is used as far as possible (up to two-thirds of its length), and the
+       function  returns a value of zero. If neither the actual string matched
+       nor any captured substrings are of interest, pcre_exec() may be  called
+       with  ovector passed as NULL and ovecsize as zero. However, if the pat-
+       tern contains back references and the ovector  is  not  big  enough  to
+       remember  the related substrings, PCRE has to get additional memory for
+       use during matching. Thus it is usually advisable to supply an  ovector
+       of reasonable size.
+
+       There  are  some  cases where zero is returned (indicating vector over-
+       flow) when in fact the vector is exactly the right size for  the  final
+       match. For example, consider the pattern
+
+         (a)(?:(b)c|bd)
+
+       If  a  vector of 6 elements (allowing for only 1 captured substring) is
+       given with subject string "abd", pcre_exec() will try to set the second
+       captured string, thereby recording a vector overflow, before failing to
+       match "c" and backing up  to  try  the  second  alternative.  The  zero
+       return,  however,  does  correctly  indicate that the maximum number of
+       slots (namely 2) have been filled. In similar cases where there is tem-
+       porary  overflow,  but  the final number of used slots is actually less
+       than the maximum, a non-zero value is returned.
+
+       The pcre_fullinfo() function can be used to find out how many capturing
+       subpatterns  there  are  in  a  compiled pattern. The smallest size for
+       ovector that will allow for n captured substrings, in addition  to  the
+       offsets of the substring matched by the whole pattern, is (n+1)*3.
+
+       It  is  possible for capturing subpattern number n+1 to match some part
+       of the subject when subpattern n has not been used at all. For example,
+       if  the  string  "abc"  is  matched against the pattern (a|(z))(bc) the
+       return from the function is 4, and subpatterns 1 and 3 are matched, but
+       2  is  not.  When  this happens, both values in the offset pairs corre-
+       sponding to unused subpatterns are set to -1.
+
+       Offset values that correspond to unused subpatterns at the end  of  the
+       expression  are  also  set  to  -1. For example, if the string "abc" is
+       matched against the pattern (abc)(x(yz)?)? subpatterns 2 and 3 are  not
+       matched.  The  return  from the function is 2, because the highest used
+       capturing subpattern number is 1, and the offsets for  for  the  second
+       and  third  capturing subpatterns (assuming the vector is large enough,
+       of course) are set to -1.
+
+       Note: Elements in the first two-thirds of ovector that  do  not  corre-
+       spond  to  capturing parentheses in the pattern are never changed. That
+       is, if a pattern contains n capturing parentheses, no more  than  ovec-
+       tor[0]  to ovector[2n+1] are set by pcre_exec(). The other elements (in
+       the first two-thirds) retain whatever values they previously had.
+
+       Some convenience functions are provided  for  extracting  the  captured
+       substrings as separate strings. These are described below.
+
+   Error return values from pcre_exec()
+
+       If  pcre_exec()  fails, it returns a negative number. The following are
+       defined in the header file:
+
+         PCRE_ERROR_NOMATCH        (-1)
+
+       The subject string did not match the pattern.
+
+         PCRE_ERROR_NULL           (-2)
+
+       Either code or subject was passed as NULL,  or  ovector  was  NULL  and
+       ovecsize was not zero.
+
+         PCRE_ERROR_BADOPTION      (-3)
+
+       An unrecognized bit was set in the options argument.
+
+         PCRE_ERROR_BADMAGIC       (-4)
+
+       PCRE  stores a 4-byte "magic number" at the start of the compiled code,
+       to catch the case when it is passed a junk pointer and to detect when a
+       pattern that was compiled in an environment of one endianness is run in
+       an environment with the other endianness. This is the error  that  PCRE
+       gives when the magic number is not present.
+
+         PCRE_ERROR_UNKNOWN_OPCODE (-5)
+
+       While running the pattern match, an unknown item was encountered in the
+       compiled pattern. This error could be caused by a bug  in  PCRE  or  by
+       overwriting of the compiled pattern.
+
+         PCRE_ERROR_NOMEMORY       (-6)
+
+       If  a  pattern contains back references, but the ovector that is passed
+       to pcre_exec() is not big enough to remember the referenced substrings,
+       PCRE  gets  a  block of memory at the start of matching to use for this
+       purpose. If the call via pcre_malloc() fails, this error is given.  The
+       memory is automatically freed at the end of matching.
+
+       This  error  is also given if pcre_stack_malloc() fails in pcre_exec().
+       This can happen only when PCRE has been compiled with  --disable-stack-
+       for-recursion.
+
+         PCRE_ERROR_NOSUBSTRING    (-7)
+
+       This  error is used by the pcre_copy_substring(), pcre_get_substring(),
+       and  pcre_get_substring_list()  functions  (see  below).  It  is  never
+       returned by pcre_exec().
+
+         PCRE_ERROR_MATCHLIMIT     (-8)
+
+       The  backtracking  limit,  as  specified  by the match_limit field in a
+       pcre_extra structure (or defaulted) was reached.  See  the  description
+       above.
+
+         PCRE_ERROR_CALLOUT        (-9)
+
+       This error is never generated by pcre_exec() itself. It is provided for
+       use by callout functions that want to yield a distinctive  error  code.
+       See the pcrecallout documentation for details.
+
+         PCRE_ERROR_BADUTF8        (-10)
+
+       A  string  that contains an invalid UTF-8 byte sequence was passed as a
+       subject, and the PCRE_NO_UTF8_CHECK option was not set. If the size  of
+       the  output  vector  (ovecsize)  is  at least 2, the byte offset to the
+       start of the the invalid UTF-8 character is placed in  the  first  ele-
+       ment,  and  a  reason  code is placed in the second element. The reason
+       codes are listed in the following section.  For backward compatibility,
+       if  PCRE_PARTIAL_HARD is set and the problem is a truncated UTF-8 char-
+       acter  at  the  end  of  the   subject   (reason   codes   1   to   5),
+       PCRE_ERROR_SHORTUTF8 is returned instead of PCRE_ERROR_BADUTF8.
+
+         PCRE_ERROR_BADUTF8_OFFSET (-11)
+
+       The  UTF-8  byte  sequence that was passed as a subject was checked and
+       found to be valid (the PCRE_NO_UTF8_CHECK option was not set), but  the
+       value  of startoffset did not point to the beginning of a UTF-8 charac-
+       ter or the end of the subject.
+
+         PCRE_ERROR_PARTIAL        (-12)
+
+       The subject string did not match, but it did match partially.  See  the
+       pcrepartial documentation for details of partial matching.
+
+         PCRE_ERROR_BADPARTIAL     (-13)
+
+       This  code  is  no  longer  in  use.  It was formerly returned when the
+       PCRE_PARTIAL option was used with a compiled pattern  containing  items
+       that  were  not  supported  for  partial  matching.  From  release 8.00
+       onwards, there are no restrictions on partial matching.
+
+         PCRE_ERROR_INTERNAL       (-14)
+
+       An unexpected internal error has occurred. This error could  be  caused
+       by a bug in PCRE or by overwriting of the compiled pattern.
+
+         PCRE_ERROR_BADCOUNT       (-15)
+
+       This error is given if the value of the ovecsize argument is negative.
+
+         PCRE_ERROR_RECURSIONLIMIT (-21)
+
+       The internal recursion limit, as specified by the match_limit_recursion
+       field in a pcre_extra structure (or defaulted)  was  reached.  See  the
+       description above.
+
+         PCRE_ERROR_BADNEWLINE     (-23)
+
+       An invalid combination of PCRE_NEWLINE_xxx options was given.
+
+         PCRE_ERROR_BADOFFSET      (-24)
+
+       The value of startoffset was negative or greater than the length of the
+       subject, that is, the value in length.
+
+         PCRE_ERROR_SHORTUTF8      (-25)
+
+       This error is returned instead of PCRE_ERROR_BADUTF8 when  the  subject
+       string  ends with a truncated UTF-8 character and the PCRE_PARTIAL_HARD
+       option is set.  Information  about  the  failure  is  returned  as  for
+       PCRE_ERROR_BADUTF8.  It  is in fact sufficient to detect this case, but
+       this special error code for PCRE_PARTIAL_HARD precedes the  implementa-
+       tion  of returned information; it is retained for backwards compatibil-
+       ity.
+
+         PCRE_ERROR_RECURSELOOP    (-26)
+
+       This error is returned when pcre_exec() detects a recursion loop within
+       the  pattern. Specifically, it means that either the whole pattern or a
+       subpattern has been called recursively for the second time at the  same
+       position in the subject string. Some simple patterns that might do this
+       are detected and faulted at compile time, but more  complicated  cases,
+       in particular mutual recursions between two different subpatterns, can-
+       not be detected until run time.
+
+         PCRE_ERROR_JIT_STACKLIMIT (-27)
+
+       This error is returned when a pattern  that  was  successfully  studied
+       using  a  JIT compile option is being matched, but the memory available
+       for the just-in-time processing stack is  not  large  enough.  See  the
+       pcrejit documentation for more details.
+
+         PCRE_ERROR_BADMODE        (-28)
+
+       This error is given if a pattern that was compiled by the 8-bit library
+       is passed to a 16-bit library function, or vice versa.
+
+         PCRE_ERROR_BADENDIANNESS  (-29)
+
+       This error is given if  a  pattern  that  was  compiled  and  saved  is
+       reloaded  on  a  host  with  different endianness. The utility function
+       pcre_pattern_to_host_byte_order() can be used to convert such a pattern
+       so that it runs on the new host.
+
+       Error numbers -16 to -20, -22, and -30 are not used by pcre_exec().
+
+   Reason codes for invalid UTF-8 strings
+
+       This  section  applies  only  to  the  8-bit library. The corresponding
+       information for the 16-bit library is given in the pcre16 page.
+
+       When pcre_exec() returns either PCRE_ERROR_BADUTF8 or PCRE_ERROR_SHORT-
+       UTF8,  and  the size of the output vector (ovecsize) is at least 2, the
+       offset of the start of the invalid UTF-8 character  is  placed  in  the
+       first output vector element (ovector[0]) and a reason code is placed in
+       the second element (ovector[1]). The reason codes are  given  names  in
+       the pcre.h header file:
+
+         PCRE_UTF8_ERR1
+         PCRE_UTF8_ERR2
+         PCRE_UTF8_ERR3
+         PCRE_UTF8_ERR4
+         PCRE_UTF8_ERR5
+
+       The  string  ends  with a truncated UTF-8 character; the code specifies
+       how many bytes are missing (1 to 5). Although RFC 3629 restricts  UTF-8
+       characters  to  be  no longer than 4 bytes, the encoding scheme (origi-
+       nally defined by RFC 2279) allows for  up  to  6  bytes,  and  this  is
+       checked first; hence the possibility of 4 or 5 missing bytes.
+
+         PCRE_UTF8_ERR6
+         PCRE_UTF8_ERR7
+         PCRE_UTF8_ERR8
+         PCRE_UTF8_ERR9
+         PCRE_UTF8_ERR10
+
+       The two most significant bits of the 2nd, 3rd, 4th, 5th, or 6th byte of
+       the character do not have the binary value 0b10 (that  is,  either  the
+       most significant bit is 0, or the next bit is 1).
+
+         PCRE_UTF8_ERR11
+         PCRE_UTF8_ERR12
+
+       A  character that is valid by the RFC 2279 rules is either 5 or 6 bytes
+       long; these code points are excluded by RFC 3629.
+
+         PCRE_UTF8_ERR13
+
+       A 4-byte character has a value greater than 0x10fff; these code  points
+       are excluded by RFC 3629.
+
+         PCRE_UTF8_ERR14
+
+       A  3-byte  character  has  a  value in the range 0xd800 to 0xdfff; this
+       range of code points are reserved by RFC 3629 for use with UTF-16,  and
+       so are excluded from UTF-8.
+
+         PCRE_UTF8_ERR15
+         PCRE_UTF8_ERR16
+         PCRE_UTF8_ERR17
+         PCRE_UTF8_ERR18
+         PCRE_UTF8_ERR19
+
+       A  2-, 3-, 4-, 5-, or 6-byte character is "overlong", that is, it codes
+       for a value that can be represented by fewer bytes, which  is  invalid.
+       For  example,  the two bytes 0xc0, 0xae give the value 0x2e, whose cor-
+       rect coding uses just one byte.
+
+         PCRE_UTF8_ERR20
+
+       The two most significant bits of the first byte of a character have the
+       binary  value 0b10 (that is, the most significant bit is 1 and the sec-
+       ond is 0). Such a byte can only validly occur as the second  or  subse-
+       quent byte of a multi-byte character.
+
+         PCRE_UTF8_ERR21
+
+       The  first byte of a character has the value 0xfe or 0xff. These values
+       can never occur in a valid UTF-8 string.
+
+
+EXTRACTING CAPTURED SUBSTRINGS BY NUMBER
+
+       int pcre_copy_substring(const char *subject, int *ovector,
+            int stringcount, int stringnumber, char *buffer,
+            int buffersize);
+
+       int pcre_get_substring(const char *subject, int *ovector,
+            int stringcount, int stringnumber,
+            const char **stringptr);
+
+       int pcre_get_substring_list(const char *subject,
+            int *ovector, int stringcount, const char ***listptr);
+
+       Captured substrings can be  accessed  directly  by  using  the  offsets
+       returned  by  pcre_exec()  in  ovector.  For convenience, the functions
+       pcre_copy_substring(),    pcre_get_substring(),    and    pcre_get_sub-
+       string_list()  are  provided for extracting captured substrings as new,
+       separate, zero-terminated strings. These functions identify  substrings
+       by  number.  The  next section describes functions for extracting named
+       substrings.
+
+       A substring that contains a binary zero is correctly extracted and  has
+       a  further zero added on the end, but the result is not, of course, a C
+       string.  However, you can process such a string  by  referring  to  the
+       length  that  is  returned  by  pcre_copy_substring() and pcre_get_sub-
+       string().  Unfortunately, the interface to pcre_get_substring_list() is
+       not  adequate for handling strings containing binary zeros, because the
+       end of the final string is not independently indicated.
+
+       The first three arguments are the same for all  three  of  these  func-
+       tions:  subject  is  the subject string that has just been successfully
+       matched, ovector is a pointer to the vector of integer offsets that was
+       passed to pcre_exec(), and stringcount is the number of substrings that
+       were captured by the match, including the substring  that  matched  the
+       entire regular expression. This is the value returned by pcre_exec() if
+       it is greater than zero. If pcre_exec() returned zero, indicating  that
+       it  ran out of space in ovector, the value passed as stringcount should
+       be the number of elements in the vector divided by three.
+
+       The functions pcre_copy_substring() and pcre_get_substring() extract  a
+       single  substring,  whose  number  is given as stringnumber. A value of
+       zero extracts the substring that matched the  entire  pattern,  whereas
+       higher  values  extract  the  captured  substrings.  For pcre_copy_sub-
+       string(), the string is placed in buffer,  whose  length  is  given  by
+       buffersize,  while  for  pcre_get_substring()  a new block of memory is
+       obtained via pcre_malloc, and its address is  returned  via  stringptr.
+       The  yield  of  the function is the length of the string, not including
+       the terminating zero, or one of these error codes:
+
+         PCRE_ERROR_NOMEMORY       (-6)
+
+       The buffer was too small for pcre_copy_substring(), or the  attempt  to
+       get memory failed for pcre_get_substring().
+
+         PCRE_ERROR_NOSUBSTRING    (-7)
+
+       There is no substring whose number is stringnumber.
+
+       The  pcre_get_substring_list()  function  extracts  all  available sub-
+       strings and builds a list of pointers to them. All this is  done  in  a
+       single block of memory that is obtained via pcre_malloc. The address of
+       the memory block is returned via listptr, which is also  the  start  of
+       the  list  of  string pointers. The end of the list is marked by a NULL
+       pointer. The yield of the function is zero if all  went  well,  or  the
+       error code
+
+         PCRE_ERROR_NOMEMORY       (-6)
+
+       if the attempt to get the memory block failed.
+
+       When  any of these functions encounter a substring that is unset, which
+       can happen when capturing subpattern number n+1 matches  some  part  of
+       the  subject, but subpattern n has not been used at all, they return an
+       empty string. This can be distinguished from a genuine zero-length sub-
+       string  by inspecting the appropriate offset in ovector, which is nega-
+       tive for unset substrings.
+
+       The two convenience functions pcre_free_substring() and  pcre_free_sub-
+       string_list()  can  be  used  to free the memory returned by a previous
+       call  of  pcre_get_substring()  or  pcre_get_substring_list(),  respec-
+       tively.  They  do  nothing  more  than  call the function pointed to by
+       pcre_free, which of course could be called directly from a  C  program.
+       However,  PCRE is used in some situations where it is linked via a spe-
+       cial  interface  to  another  programming  language  that  cannot   use
+       pcre_free  directly;  it is for these cases that the functions are pro-
+       vided.
+
+
+EXTRACTING CAPTURED SUBSTRINGS BY NAME
+
+       int pcre_get_stringnumber(const pcre *code,
+            const char *name);
+
+       int pcre_copy_named_substring(const pcre *code,
+            const char *subject, int *ovector,
+            int stringcount, const char *stringname,
+            char *buffer, int buffersize);
+
+       int pcre_get_named_substring(const pcre *code,
+            const char *subject, int *ovector,
+            int stringcount, const char *stringname,
+            const char **stringptr);
+
+       To extract a substring by name, you first have to find associated  num-
+       ber.  For example, for this pattern
+
+         (a+)b(?<xxx>\d+)...
+
+       the number of the subpattern called "xxx" is 2. If the name is known to
+       be unique (PCRE_DUPNAMES was not set), you can find the number from the
+       name by calling pcre_get_stringnumber(). The first argument is the com-
+       piled pattern, and the second is the name. The yield of the function is
+       the  subpattern  number,  or PCRE_ERROR_NOSUBSTRING (-7) if there is no
+       subpattern of that name.
+
+       Given the number, you can extract the substring directly, or use one of
+       the functions described in the previous section. For convenience, there
+       are also two functions that do the whole job.
+
+       Most   of   the   arguments    of    pcre_copy_named_substring()    and
+       pcre_get_named_substring()  are  the  same  as  those for the similarly
+       named functions that extract by number. As these are described  in  the
+       previous  section,  they  are not re-described here. There are just two
+       differences:
+
+       First, instead of a substring number, a substring name is  given.  Sec-
+       ond, there is an extra argument, given at the start, which is a pointer
+       to the compiled pattern. This is needed in order to gain access to  the
+       name-to-number translation table.
+
+       These  functions call pcre_get_stringnumber(), and if it succeeds, they
+       then call pcre_copy_substring() or pcre_get_substring(),  as  appropri-
+       ate.  NOTE:  If PCRE_DUPNAMES is set and there are duplicate names, the
+       behaviour may not be what you want (see the next section).
+
+       Warning: If the pattern uses the (?| feature to set up multiple subpat-
+       terns  with  the  same number, as described in the section on duplicate
+       subpattern numbers in the pcrepattern page, you  cannot  use  names  to
+       distinguish  the  different subpatterns, because names are not included
+       in the compiled code. The matching process uses only numbers. For  this
+       reason,  the  use of different names for subpatterns of the same number
+       causes an error at compile time.
+
+
+DUPLICATE SUBPATTERN NAMES
+
+       int pcre_get_stringtable_entries(const pcre *code,
+            const char *name, char **first, char **last);
+
+       When a pattern is compiled with the  PCRE_DUPNAMES  option,  names  for
+       subpatterns  are not required to be unique. (Duplicate names are always
+       allowed for subpatterns with the same number, created by using the  (?|
+       feature.  Indeed,  if  such subpatterns are named, they are required to
+       use the same names.)
+
+       Normally, patterns with duplicate names are such that in any one match,
+       only  one of the named subpatterns participates. An example is shown in
+       the pcrepattern documentation.
+
+       When   duplicates   are   present,   pcre_copy_named_substring()    and
+       pcre_get_named_substring()  return the first substring corresponding to
+       the given name that is set. If  none  are  set,  PCRE_ERROR_NOSUBSTRING
+       (-7)  is  returned;  no  data  is returned. The pcre_get_stringnumber()
+       function returns one of the numbers that are associated with the  name,
+       but it is not defined which it is.
+
+       If  you want to get full details of all captured substrings for a given
+       name, you must use  the  pcre_get_stringtable_entries()  function.  The
+       first argument is the compiled pattern, and the second is the name. The
+       third and fourth are pointers to variables which  are  updated  by  the
+       function. After it has run, they point to the first and last entries in
+       the name-to-number table  for  the  given  name.  The  function  itself
+       returns  the  length  of  each entry, or PCRE_ERROR_NOSUBSTRING (-7) if
+       there are none. The format of the table is described above in the  sec-
+       tion  entitled  Information about a pattern above.  Given all the rele-
+       vant entries for the name, you can extract each of their  numbers,  and
+       hence the captured data, if any.
+
+
+FINDING ALL POSSIBLE MATCHES
+
+       The  traditional  matching  function  uses a similar algorithm to Perl,
+       which stops when it finds the first match, starting at a given point in
+       the  subject.  If you want to find all possible matches, or the longest
+       possible match, consider using the alternative matching  function  (see
+       below)  instead.  If you cannot use the alternative function, but still
+       need to find all possible matches, you can kludge it up by  making  use
+       of the callout facility, which is described in the pcrecallout documen-
+       tation.
+
+       What you have to do is to insert a callout right at the end of the pat-
+       tern.   When your callout function is called, extract and save the cur-
+       rent matched substring. Then return  1,  which  forces  pcre_exec()  to
+       backtrack  and  try other alternatives. Ultimately, when it runs out of
+       matches, pcre_exec() will yield PCRE_ERROR_NOMATCH.
+
+
+OBTAINING AN ESTIMATE OF STACK USAGE
+
+       Matching certain patterns using pcre_exec() can use a  lot  of  process
+       stack,  which  in  certain  environments can be rather limited in size.
+       Some users find it helpful to have an estimate of the amount  of  stack
+       that  is  used  by  pcre_exec(),  to help them set recursion limits, as
+       described in the pcrestack documentation. The estimate that  is  output
+       by pcretest when called with the -m and -C options is obtained by call-
+       ing pcre_exec with the values NULL, NULL, NULL, -999, and -999 for  its
+       first five arguments.
+
+       Normally,  if  its  first  argument  is  NULL,  pcre_exec() immediately
+       returns the negative error code PCRE_ERROR_NULL, but with this  special
+       combination  of  arguments,  it returns instead a negative number whose
+       absolute value is the approximate stack frame size in bytes.  (A  nega-
+       tive  number  is  used so that it is clear that no match has happened.)
+       The value is approximate because in  some  cases,  recursive  calls  to
+       pcre_exec() occur when there are one or two additional variables on the
+       stack.
+
+       If PCRE has been compiled to use the heap  instead  of  the  stack  for
+       recursion,  the  value  returned  is  the  size  of  each block that is
+       obtained from the heap.
+
+
+MATCHING A PATTERN: THE ALTERNATIVE FUNCTION
+
+       int pcre_dfa_exec(const pcre *code, const pcre_extra *extra,
+            const char *subject, int length, int startoffset,
+            int options, int *ovector, int ovecsize,
+            int *workspace, int wscount);
+
+       The function pcre_dfa_exec()  is  called  to  match  a  subject  string
+       against  a  compiled pattern, using a matching algorithm that scans the
+       subject string just once, and does not backtrack.  This  has  different
+       characteristics  to  the  normal  algorithm, and is not compatible with
+       Perl. Some of the features of PCRE patterns are not  supported.  Never-
+       theless,  there are times when this kind of matching can be useful. For
+       a discussion of the two matching algorithms, and  a  list  of  features
+       that  pcre_dfa_exec() does not support, see the pcrematching documenta-
+       tion.
+
+       The arguments for the pcre_dfa_exec() function  are  the  same  as  for
+       pcre_exec(), plus two extras. The ovector argument is used in a differ-
+       ent way, and this is described below. The other  common  arguments  are
+       used  in  the  same way as for pcre_exec(), so their description is not
+       repeated here.
+
+       The two additional arguments provide workspace for  the  function.  The
+       workspace  vector  should  contain at least 20 elements. It is used for
+       keeping  track  of  multiple  paths  through  the  pattern  tree.  More
+       workspace  will  be  needed for patterns and subjects where there are a
+       lot of potential matches.
+
+       Here is an example of a simple call to pcre_dfa_exec():
+
+         int rc;
+         int ovector[10];
+         int wspace[20];
+         rc = pcre_dfa_exec(
+           re,             /* result of pcre_compile() */
+           NULL,           /* we didn't study the pattern */
+           "some string",  /* the subject string */
+           11,             /* the length of the subject string */
+           0,              /* start at offset 0 in the subject */
+           0,              /* default options */
+           ovector,        /* vector of integers for substring information */
+           10,             /* number of elements (NOT size in bytes) */
+           wspace,         /* working space vector */
+           20);            /* number of elements (NOT size in bytes) */
+
+   Option bits for pcre_dfa_exec()
+
+       The unused bits of the options argument  for  pcre_dfa_exec()  must  be
+       zero.  The  only  bits  that  may  be  set are PCRE_ANCHORED, PCRE_NEW-
+       LINE_xxx,        PCRE_NOTBOL,        PCRE_NOTEOL,        PCRE_NOTEMPTY,
+       PCRE_NOTEMPTY_ATSTART,       PCRE_NO_UTF8_CHECK,      PCRE_BSR_ANYCRLF,
+       PCRE_BSR_UNICODE, PCRE_NO_START_OPTIMIZE, PCRE_PARTIAL_HARD,  PCRE_PAR-
+       TIAL_SOFT,  PCRE_DFA_SHORTEST,  and PCRE_DFA_RESTART.  All but the last
+       four of these are  exactly  the  same  as  for  pcre_exec(),  so  their
+       description is not repeated here.
+
+         PCRE_PARTIAL_HARD
+         PCRE_PARTIAL_SOFT
+
+       These  have the same general effect as they do for pcre_exec(), but the
+       details are slightly  different.  When  PCRE_PARTIAL_HARD  is  set  for
+       pcre_dfa_exec(),  it  returns PCRE_ERROR_PARTIAL if the end of the sub-
+       ject is reached and there is still at least  one  matching  possibility
+       that requires additional characters. This happens even if some complete
+       matches have also been found. When PCRE_PARTIAL_SOFT is set, the return
+       code PCRE_ERROR_NOMATCH is converted into PCRE_ERROR_PARTIAL if the end
+       of the subject is reached, there have been  no  complete  matches,  but
+       there  is  still  at least one matching possibility. The portion of the
+       string that was inspected when the longest partial match was  found  is
+       set  as  the  first  matching  string  in  both cases.  There is a more
+       detailed discussion of partial and multi-segment matching,  with  exam-
+       ples, in the pcrepartial documentation.
+
+         PCRE_DFA_SHORTEST
+
+       Setting  the  PCRE_DFA_SHORTEST option causes the matching algorithm to
+       stop as soon as it has found one match. Because of the way the alterna-
+       tive  algorithm  works, this is necessarily the shortest possible match
+       at the first possible matching point in the subject string.
+
+         PCRE_DFA_RESTART
+
+       When pcre_dfa_exec() returns a partial match, it is possible to call it
+       again,  with  additional  subject characters, and have it continue with
+       the same match. The PCRE_DFA_RESTART option requests this action;  when
+       it  is  set,  the workspace and wscount options must reference the same
+       vector as before because data about the match so far is  left  in  them
+       after a partial match. There is more discussion of this facility in the
+       pcrepartial documentation.
+
+   Successful returns from pcre_dfa_exec()
+
+       When pcre_dfa_exec() succeeds, it may have matched more than  one  sub-
+       string in the subject. Note, however, that all the matches from one run
+       of the function start at the same point in  the  subject.  The  shorter
+       matches  are all initial substrings of the longer matches. For example,
+       if the pattern
+
+         <.*>
+
+       is matched against the string
+
+         This is <something> <something else> <something further> no more
+
+       the three matched strings are
+
+         <something>
+         <something> <something else>
+         <something> <something else> <something further>
+
+       On success, the yield of the function is a number  greater  than  zero,
+       which  is  the  number of matched substrings. The substrings themselves
+       are returned in ovector. Each string uses two elements;  the  first  is
+       the  offset  to  the start, and the second is the offset to the end. In
+       fact, all the strings have the same start  offset.  (Space  could  have
+       been  saved by giving this only once, but it was decided to retain some
+       compatibility with the way pcre_exec() returns data,  even  though  the
+       meaning of the strings is different.)
+
+       The strings are returned in reverse order of length; that is, the long-
+       est matching string is given first. If there were too many  matches  to
+       fit  into ovector, the yield of the function is zero, and the vector is
+       filled with the longest matches.  Unlike  pcre_exec(),  pcre_dfa_exec()
+       can use the entire ovector for returning matched strings.
+
+   Error returns from pcre_dfa_exec()
+
+       The  pcre_dfa_exec()  function returns a negative number when it fails.
+       Many of the errors are the same  as  for  pcre_exec(),  and  these  are
+       described  above.   There are in addition the following errors that are
+       specific to pcre_dfa_exec():
+
+         PCRE_ERROR_DFA_UITEM      (-16)
+
+       This return is given if pcre_dfa_exec() encounters an item in the  pat-
+       tern  that  it  does not support, for instance, the use of \C or a back
+       reference.
+
+         PCRE_ERROR_DFA_UCOND      (-17)
+
+       This return is given if pcre_dfa_exec()  encounters  a  condition  item
+       that  uses  a back reference for the condition, or a test for recursion
+       in a specific group. These are not supported.
+
+         PCRE_ERROR_DFA_UMLIMIT    (-18)
+
+       This return is given if pcre_dfa_exec() is called with an  extra  block
+       that  contains  a  setting  of the match_limit or match_limit_recursion
+       fields. This is not supported (these fields  are  meaningless  for  DFA
+       matching).
+
+         PCRE_ERROR_DFA_WSSIZE     (-19)
+
+       This  return  is  given  if  pcre_dfa_exec()  runs  out of space in the
+       workspace vector.
+
+         PCRE_ERROR_DFA_RECURSE    (-20)
+
+       When a recursive subpattern is processed, the matching  function  calls
+       itself  recursively,  using  private vectors for ovector and workspace.
+       This error is given if the output vector  is  not  large  enough.  This
+       should be extremely rare, as a vector of size 1000 is used.
+
+         PCRE_ERROR_DFA_BADRESTART (-30)
+
+       When  pcre_dfa_exec()  is called with the PCRE_DFA_RESTART option, some
+       plausibility checks are made on the contents of  the  workspace,  which
+       should  contain  data about the previous partial match. If any of these
+       checks fail, this error is given.
+
+
+SEE ALSO
+
+       pcre16(3),  pcrebuild(3),  pcrecallout(3),  pcrecpp(3)(3),   pcrematch-
+       ing(3), pcrepartial(3), pcreposix(3), pcreprecompile(3), pcresample(3),
+       pcrestack(3).
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 17 June 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCRECALLOUT(3)                                                  PCRECALLOUT(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE CALLOUTS
+
+       int (*pcre_callout)(pcre_callout_block *);
+
+       int (*pcre16_callout)(pcre16_callout_block *);
+
+       PCRE provides a feature called "callout", which is a means of temporar-
+       ily passing control to the caller of PCRE  in  the  middle  of  pattern
+       matching.  The  caller of PCRE provides an external function by putting
+       its entry point in the global variable pcre_callout (pcre16_callout for
+       the  16-bit  library).  By  default, this variable contains NULL, which
+       disables all calling out.
+
+       Within a regular expression, (?C) indicates the  points  at  which  the
+       external  function  is  to  be  called. Different callout points can be
+       identified by putting a number less than 256 after the  letter  C.  The
+       default  value  is  zero.   For  example,  this pattern has two callout
+       points:
+
+         (?C1)abc(?C2)def
+
+       If the PCRE_AUTO_CALLOUT option bit is set when a pattern is  compiled,
+       PCRE  automatically  inserts callouts, all with number 255, before each
+       item in the pattern. For example, if PCRE_AUTO_CALLOUT is used with the
+       pattern
+
+         A(\d{2}|--)
+
+       it is processed as if it were
+
+       (?C255)A(?C255)((?C255)\d{2}(?C255)|(?C255)-(?C255)-(?C255))(?C255)
+
+       Notice  that  there  is a callout before and after each parenthesis and
+       alternation bar. Automatic  callouts  can  be  used  for  tracking  the
+       progress  of  pattern matching. The pcretest command has an option that
+       sets automatic callouts; when it is used, the output indicates how  the
+       pattern  is  matched. This is useful information when you are trying to
+       optimize the performance of a particular pattern.
+
+       The use of callouts in a pattern makes it ineligible  for  optimization
+       by  the  just-in-time  compiler.  Studying  such  a  pattern  with  the
+       PCRE_STUDY_JIT_COMPILE option always fails.
+
+
+MISSING CALLOUTS
+
+       You should be aware that, because of  optimizations  in  the  way  PCRE
+       matches  patterns  by  default,  callouts  sometimes do not happen. For
+       example, if the pattern is
+
+         ab(?C4)cd
+
+       PCRE knows that any matching string must contain the letter "d". If the
+       subject  string  is "abyz", the lack of "d" means that matching doesn't
+       ever start, and the callout is never  reached.  However,  with  "abyd",
+       though the result is still no match, the callout is obeyed.
+
+       If  the pattern is studied, PCRE knows the minimum length of a matching
+       string, and will immediately give a "no match" return without  actually
+       running  a  match if the subject is not long enough, or, for unanchored
+       patterns, if it has been scanned far enough.
+
+       You can disable these optimizations by passing the  PCRE_NO_START_OPTI-
+       MIZE  option  to the matching function, or by starting the pattern with
+       (*NO_START_OPT). This slows down the matching process, but does  ensure
+       that callouts such as the example above are obeyed.
+
+
+THE CALLOUT INTERFACE
+
+       During  matching, when PCRE reaches a callout point, the external func-
+       tion defined by pcre_callout or pcre16_callout  is  called  (if  it  is
+       set).   This applies to both normal and DFA matching. The only argument
+       to the callout function is a pointer to a pcre_callout or  pcre16_call-
+       out block.  These structures contains the following fields:
+
+         int           version;
+         int           callout_number;
+         int          *offset_vector;
+         const char   *subject;           (8-bit version)
+         PCRE_SPTR16   subject;           (16-bit version)
+         int           subject_length;
+         int           start_match;
+         int           current_position;
+         int           capture_top;
+         int           capture_last;
+         void         *callout_data;
+         int           pattern_position;
+         int           next_item_length;
+         const unsigned char *mark;       (8-bit version)
+         const PCRE_UCHAR16  *mark;       (16-bit version)
+
+       The  version  field  is an integer containing the version number of the
+       block format. The initial version was 0; the current version is 2.  The
+       version  number  will  change  again in future if additional fields are
+       added, but the intention is never to remove any of the existing fields.
+
+       The callout_number field contains the number of the  callout,  as  com-
+       piled  into  the pattern (that is, the number after ?C for manual call-
+       outs, and 255 for automatically generated callouts).
+
+       The offset_vector field is a pointer to the vector of offsets that  was
+       passed  by  the  caller  to  the matching function. When pcre_exec() or
+       pcre16_exec() is used, the contents  can  be  inspected,  in  order  to
+       extract  substrings  that  have been matched so far, in the same way as
+       for extracting substrings after a match  has  completed.  For  the  DFA
+       matching functions, this field is not useful.
+
+       The subject and subject_length fields contain copies of the values that
+       were passed to the matching function.
+
+       The start_match field normally contains the offset within  the  subject
+       at  which  the  current  match  attempt started. However, if the escape
+       sequence \K has been encountered, this value is changed to reflect  the
+       modified  starting  point.  If the pattern is not anchored, the callout
+       function may be called several times from the same point in the pattern
+       for different starting points in the subject.
+
+       The  current_position  field  contains the offset within the subject of
+       the current match pointer.
+
+       When the pcre_exec() or pcre16_exec() is used,  the  capture_top  field
+       contains one more than the number of the highest numbered captured sub-
+       string so far. If no substrings have been captured, the value  of  cap-
+       ture_top  is  one.  This  is always the case when the DFA functions are
+       used, because they do not support captured substrings.
+
+       The capture_last field contains the number of the  most  recently  cap-
+       tured  substring. If no substrings have been captured, its value is -1.
+       This is always the case for the DFA matching functions.
+
+       The callout_data field contains a value that is passed  to  a  matching
+       function  specifically so that it can be passed back in callouts. It is
+       passed in the callout_data field of a pcre_extra or  pcre16_extra  data
+       structure.  If  no such data was passed, the value of callout_data in a
+       callout block is NULL. There is a description of the pcre_extra  struc-
+       ture in the pcreapi documentation.
+
+       The  pattern_position  field  is  present from version 1 of the callout
+       structure. It contains the offset to the next item to be matched in the
+       pattern string.
+
+       The  next_item_length  field  is  present from version 1 of the callout
+       structure. It contains the length of the next item to be matched in the
+       pattern  string.  When  the callout immediately precedes an alternation
+       bar, a closing parenthesis, or the end of the pattern,  the  length  is
+       zero.  When  the callout precedes an opening parenthesis, the length is
+       that of the entire subpattern.
+
+       The pattern_position and next_item_length fields are intended  to  help
+       in  distinguishing between different automatic callouts, which all have
+       the same callout number. However, they are set for all callouts.
+
+       The mark field is present from version 2 of the callout  structure.  In
+       callouts from pcre_exec() or pcre16_exec() it contains a pointer to the
+       zero-terminated name of the most recently passed (*MARK), (*PRUNE),  or
+       (*THEN)  item  in the match, or NULL if no such items have been passed.
+       Instances of (*PRUNE) or (*THEN) without a name  do  not  obliterate  a
+       previous  (*MARK).  In  callouts  from  the DFA matching functions this
+       field always contains NULL.
+
+
+RETURN VALUES
+
+       The external callout function returns an integer to PCRE. If the  value
+       is  zero,  matching  proceeds  as  normal. If the value is greater than
+       zero, matching fails at the current point, but  the  testing  of  other
+       matching possibilities goes ahead, just as if a lookahead assertion had
+       failed. If the value is less than zero, the  match  is  abandoned,  the
+       matching function returns the negative value.
+
+       Negative   values   should   normally   be   chosen  from  the  set  of
+       PCRE_ERROR_xxx values. In particular, PCRE_ERROR_NOMATCH forces a stan-
+       dard  "no  match"  failure.   The  error  number  PCRE_ERROR_CALLOUT is
+       reserved for use by callout functions; it will never be  used  by  PCRE
+       itself.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 08 Janurary 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCRECOMPAT(3)                                                    PCRECOMPAT(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+DIFFERENCES BETWEEN PCRE AND PERL
+
+       This  document describes the differences in the ways that PCRE and Perl
+       handle regular expressions. The differences  described  here  are  with
+       respect to Perl versions 5.10 and above.
+
+       1. PCRE has only a subset of Perl's Unicode support. Details of what it
+       does have are given in the pcreunicode page.
+
+       2. PCRE allows repeat quantifiers only on parenthesized assertions, but
+       they  do  not mean what you might think. For example, (?!a){3} does not
+       assert that the next three characters are not "a". It just asserts that
+       the next character is not "a" three times (in principle: PCRE optimizes
+       this to run the assertion just once). Perl allows repeat quantifiers on
+       other assertions such as \b, but these do not seem to have any use.
+
+       3.  Capturing  subpatterns  that occur inside negative lookahead asser-
+       tions are counted, but their entries in the offsets  vector  are  never
+       set.  Perl sets its numerical variables from any such patterns that are
+       matched before the assertion fails to match something (thereby succeed-
+       ing),  but  only  if the negative lookahead assertion contains just one
+       branch.
+
+       4. Though binary zero characters are supported in the  subject  string,
+       they are not allowed in a pattern string because it is passed as a nor-
+       mal C string, terminated by zero. The escape sequence \0 can be used in
+       the pattern to represent a binary zero.
+
+       5.  The  following Perl escape sequences are not supported: \l, \u, \L,
+       \U, and \N when followed by a character name or Unicode value.  (\N  on
+       its own, matching a non-newline character, is supported.) In fact these
+       are implemented by Perl's general string-handling and are not  part  of
+       its  pattern  matching engine. If any of these are encountered by PCRE,
+       an error is generated by default. However, if the  PCRE_JAVASCRIPT_COM-
+       PAT  option  is set, \U and \u are interpreted as JavaScript interprets
+       them.
+
+       6. The Perl escape sequences \p, \P, and \X are supported only if  PCRE
+       is  built  with Unicode character property support. The properties that
+       can be tested with \p and \P are limited to the general category  prop-
+       erties  such  as  Lu and Nd, script names such as Greek or Han, and the
+       derived properties Any and L&. PCRE does  support  the  Cs  (surrogate)
+       property,  which  Perl  does  not; the Perl documentation says "Because
+       Perl hides the need for the user to understand the internal representa-
+       tion  of Unicode characters, there is no need to implement the somewhat
+       messy concept of surrogates."
+
+       7. PCRE implements a simpler version of \X than Perl, which changed  to
+       make  \X  match what Unicode calls an "extended grapheme cluster". This
+       is more complicated than an extended Unicode sequence,  which  is  what
+       PCRE matches.
+
+       8. PCRE does support the \Q...\E escape for quoting substrings. Charac-
+       ters in between are treated as literals.  This  is  slightly  different
+       from  Perl  in  that  $  and  @ are also handled as literals inside the
+       quotes. In Perl, they cause variable interpolation (but of course  PCRE
+       does not have variables). Note the following examples:
+
+           Pattern            PCRE matches      Perl matches
+
+           \Qabc$xyz\E        abc$xyz           abc followed by the
+                                                  contents of $xyz
+           \Qabc\$xyz\E       abc\$xyz          abc\$xyz
+           \Qabc\E\$\Qxyz\E   abc$xyz           abc$xyz
+
+       The  \Q...\E  sequence  is recognized both inside and outside character
+       classes.
+
+       9. Fairly obviously, PCRE does not support the (?{code}) and (??{code})
+       constructions.  However,  there is support for recursive patterns. This
+       is not available in Perl 5.8, but it is in Perl 5.10.  Also,  the  PCRE
+       "callout"  feature allows an external function to be called during pat-
+       tern matching. See the pcrecallout documentation for details.
+
+       10. Subpatterns that are called as subroutines (whether or  not  recur-
+       sively)  are  always  treated  as  atomic  groups in PCRE. This is like
+       Python, but unlike Perl.  Captured values that are set outside  a  sub-
+       routine  call  can  be  reference from inside in PCRE, but not in Perl.
+       There is a discussion that explains these differences in more detail in
+       the section on recursion differences from Perl in the pcrepattern page.
+
+       11.  If  any of the backtracking control verbs are used in an assertion
+       or in a subpattern that is called  as  a  subroutine  (whether  or  not
+       recursively),  their effect is confined to that subpattern; it does not
+       extend to the surrounding pattern. This is not always the case in Perl.
+       In  particular,  if  (*THEN)  is present in a group that is called as a
+       subroutine, its action is limited to that group, even if the group does
+       not  contain any | characters. There is one exception to this: the name
+       from a *(MARK), (*PRUNE), or (*THEN) that is encountered in a  success-
+       ful  positive  assertion  is passed back when a match succeeds (compare
+       capturing parentheses in assertions). Note that  such  subpatterns  are
+       processed as anchored at the point where they are tested.
+
+       12.  There are some differences that are concerned with the settings of
+       captured strings when part of  a  pattern  is  repeated.  For  example,
+       matching  "aba"  against  the  pattern  /^(a(b)?)+$/  in Perl leaves $2
+       unset, but in PCRE it is set to "b".
+
+       13. PCRE's handling of duplicate subpattern numbers and duplicate  sub-
+       pattern names is not as general as Perl's. This is a consequence of the
+       fact the PCRE works internally just with numbers, using an external ta-
+       ble  to  translate  between numbers and names. In particular, a pattern
+       such as (?|(?<a>A)|(?<b)B), where the two  capturing  parentheses  have
+       the  same  number  but different names, is not supported, and causes an
+       error at compile time. If it were allowed, it would not be possible  to
+       distinguish  which  parentheses matched, because both names map to cap-
+       turing subpattern number 1. To avoid this confusing situation, an error
+       is given at compile time.
+
+       14.  Perl  recognizes  comments  in some places that PCRE does not, for
+       example, between the ( and ? at the start of a subpattern.  If  the  /x
+       modifier is set, Perl allows white space between ( and ? but PCRE never
+       does, even if the PCRE_EXTENDED option is set.
+
+       15. PCRE provides some extensions to the Perl regular expression facil-
+       ities.   Perl  5.10  includes new features that are not in earlier ver-
+       sions of Perl, some of which (such as named parentheses) have  been  in
+       PCRE for some time. This list is with respect to Perl 5.10:
+
+       (a)  Although  lookbehind  assertions  in  PCRE must match fixed length
+       strings, each alternative branch of a lookbehind assertion can match  a
+       different  length  of  string.  Perl requires them all to have the same
+       length.
+
+       (b) If PCRE_DOLLAR_ENDONLY is set and PCRE_MULTILINE is not set, the  $
+       meta-character matches only at the very end of the string.
+
+       (c) If PCRE_EXTRA is set, a backslash followed by a letter with no spe-
+       cial meaning is faulted. Otherwise, like Perl, the backslash is quietly
+       ignored.  (Perl can be made to issue a warning.)
+
+       (d)  If  PCRE_UNGREEDY is set, the greediness of the repetition quanti-
+       fiers is inverted, that is, by default they are not greedy, but if fol-
+       lowed by a question mark they are.
+
+       (e) PCRE_ANCHORED can be used at matching time to force a pattern to be
+       tried only at the first matching position in the subject string.
+
+       (f) The PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART,
+       and  PCRE_NO_AUTO_CAPTURE  options for pcre_exec() have no Perl equiva-
+       lents.
+
+       (g) The \R escape sequence can be restricted to match only CR,  LF,  or
+       CRLF by the PCRE_BSR_ANYCRLF option.
+
+       (h) The callout facility is PCRE-specific.
+
+       (i) The partial matching facility is PCRE-specific.
+
+       (j) Patterns compiled by PCRE can be saved and re-used at a later time,
+       even on different hosts that have the other endianness.  However,  this
+       does not apply to optimized data created by the just-in-time compiler.
+
+       (k)   The   alternative   matching   functions   (pcre_dfa_exec()   and
+       pcre16_dfa_exec()) match in a different way and are  not  Perl-compati-
+       ble.
+
+       (l)  PCRE  recognizes some special sequences such as (*CR) at the start
+       of a pattern that set overall options that cannot be changed within the
+       pattern.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 01 June 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREPATTERN(3)                                                  PCREPATTERN(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE REGULAR EXPRESSION DETAILS
+
+       The  syntax and semantics of the regular expressions that are supported
+       by PCRE are described in detail below. There is a quick-reference  syn-
+       tax summary in the pcresyntax page. PCRE tries to match Perl syntax and
+       semantics as closely as it can. PCRE  also  supports  some  alternative
+       regular  expression  syntax (which does not conflict with the Perl syn-
+       tax) in order to provide some compatibility with regular expressions in
+       Python, .NET, and Oniguruma.
+
+       Perl's  regular expressions are described in its own documentation, and
+       regular expressions in general are covered in a number of  books,  some
+       of  which  have  copious  examples. Jeffrey Friedl's "Mastering Regular
+       Expressions", published by  O'Reilly,  covers  regular  expressions  in
+       great  detail.  This  description  of  PCRE's  regular  expressions  is
+       intended as reference material.
+
+       The original operation of PCRE was on strings of  one-byte  characters.
+       However,  there  is  now also support for UTF-8 strings in the original
+       library, and a second library that supports 16-bit and UTF-16 character
+       strings. To use these features, PCRE must be built to include appropri-
+       ate support. When using UTF strings you must either call the  compiling
+       function  with  the PCRE_UTF8 or PCRE_UTF16 option, or the pattern must
+       start with one of these special sequences:
+
+         (*UTF8)
+         (*UTF16)
+
+       Starting a pattern with such a sequence is equivalent  to  setting  the
+       relevant option. This feature is not Perl-compatible. How setting a UTF
+       mode affects pattern matching is mentioned  in  several  places  below.
+       There is also a summary of features in the pcreunicode page.
+
+       Another  special  sequence that may appear at the start of a pattern or
+       in combination with (*UTF8) or (*UTF16) is:
+
+         (*UCP)
+
+       This has the same effect as setting  the  PCRE_UCP  option:  it  causes
+       sequences  such  as  \d  and  \w to use Unicode properties to determine
+       character types, instead of recognizing only characters with codes less
+       than 128 via a lookup table.
+
+       If  a  pattern  starts  with (*NO_START_OPT), it has the same effect as
+       setting the PCRE_NO_START_OPTIMIZE option either at compile or matching
+       time. There are also some more of these special sequences that are con-
+       cerned with the handling of newlines; they are described below.
+
+       The remainder of this document discusses the  patterns  that  are  sup-
+       ported  by  PCRE  when  one  its  main  matching functions, pcre_exec()
+       (8-bit) or pcre16_exec() (16-bit), is used. PCRE also  has  alternative
+       matching  functions, pcre_dfa_exec() and pcre16_dfa_exec(), which match
+       using a different algorithm that is not Perl-compatible.  Some  of  the
+       features  discussed  below are not available when DFA matching is used.
+       The advantages and disadvantages of the alternative functions, and  how
+       they  differ from the normal functions, are discussed in the pcrematch-
+       ing page.
+
+
+NEWLINE CONVENTIONS
+
+       PCRE supports five different conventions for indicating line breaks  in
+       strings:  a  single  CR (carriage return) character, a single LF (line-
+       feed) character, the two-character sequence CRLF, any of the three pre-
+       ceding,  or  any Unicode newline sequence. The pcreapi page has further
+       discussion about newlines, and shows how to set the newline  convention
+       in the options arguments for the compiling and matching functions.
+
+       It  is also possible to specify a newline convention by starting a pat-
+       tern string with one of the following five sequences:
+
+         (*CR)        carriage return
+         (*LF)        linefeed
+         (*CRLF)      carriage return, followed by linefeed
+         (*ANYCRLF)   any of the three above
+         (*ANY)       all Unicode newline sequences
+
+       These override the default and the options given to the compiling func-
+       tion.  For  example,  on  a Unix system where LF is the default newline
+       sequence, the pattern
+
+         (*CR)a.b
+
+       changes the convention to CR. That pattern matches "a\nb" because LF is
+       no  longer  a  newline. Note that these special settings, which are not
+       Perl-compatible, are recognized only at the very start  of  a  pattern,
+       and  that  they  must  be  in  upper  case. If more than one of them is
+       present, the last one is used.
+
+       The newline convention affects the interpretation of the dot  metachar-
+       acter  when  PCRE_DOTALL is not set, and also the behaviour of \N. How-
+       ever, it does not affect  what  the  \R  escape  sequence  matches.  By
+       default,  this is any Unicode newline sequence, for Perl compatibility.
+       However, this can be changed; see the description of \R in the  section
+       entitled  "Newline sequences" below. A change of \R setting can be com-
+       bined with a change of newline convention.
+
+
+CHARACTERS AND METACHARACTERS
+
+       A regular expression is a pattern that is  matched  against  a  subject
+       string  from  left  to right. Most characters stand for themselves in a
+       pattern, and match the corresponding characters in the  subject.  As  a
+       trivial example, the pattern
+
+         The quick brown fox
+
+       matches a portion of a subject string that is identical to itself. When
+       caseless matching is specified (the PCRE_CASELESS option), letters  are
+       matched  independently  of case. In a UTF mode, PCRE always understands
+       the concept of case for characters whose values are less than  128,  so
+       caseless  matching  is always possible. For characters with higher val-
+       ues, the concept of case is supported if PCRE is compiled with  Unicode
+       property  support,  but  not  otherwise.   If  you want to use caseless
+       matching for characters 128 and above, you must  ensure  that  PCRE  is
+       compiled with Unicode property support as well as with UTF support.
+
+       The  power  of  regular  expressions  comes from the ability to include
+       alternatives and repetitions in the pattern. These are encoded  in  the
+       pattern by the use of metacharacters, which do not stand for themselves
+       but instead are interpreted in some special way.
+
+       There are two different sets of metacharacters: those that  are  recog-
+       nized  anywhere in the pattern except within square brackets, and those
+       that are recognized within square brackets.  Outside  square  brackets,
+       the metacharacters are as follows:
+
+         \      general escape character with several uses
+         ^      assert start of string (or line, in multiline mode)
+         $      assert end of string (or line, in multiline mode)
+         .      match any character except newline (by default)
+         [      start character class definition
+         |      start of alternative branch
+         (      start subpattern
+         )      end subpattern
+         ?      extends the meaning of (
+                also 0 or 1 quantifier
+                also quantifier minimizer
+         *      0 or more quantifier
+         +      1 or more quantifier
+                also "possessive quantifier"
+         {      start min/max quantifier
+
+       Part  of  a  pattern  that is in square brackets is called a "character
+       class". In a character class the only metacharacters are:
+
+         \      general escape character
+         ^      negate the class, but only if the first character
+         -      indicates character range
+         [      POSIX character class (only if followed by POSIX
+                  syntax)
+         ]      terminates the character class
+
+       The following sections describe the use of each of the metacharacters.
+
+
+BACKSLASH
+
+       The backslash character has several uses. Firstly, if it is followed by
+       a character that is not a number or a letter, it takes away any special
+       meaning that character may have. This use of  backslash  as  an  escape
+       character applies both inside and outside character classes.
+
+       For  example,  if  you want to match a * character, you write \* in the
+       pattern.  This escaping action applies whether  or  not  the  following
+       character  would  otherwise be interpreted as a metacharacter, so it is
+       always safe to precede a non-alphanumeric  with  backslash  to  specify
+       that  it stands for itself. In particular, if you want to match a back-
+       slash, you write \\.
+
+       In a UTF mode, only ASCII numbers and letters have any special  meaning
+       after  a  backslash.  All  other characters (in particular, those whose
+       codepoints are greater than 127) are treated as literals.
+
+       If a pattern is compiled with the PCRE_EXTENDED option, white space  in
+       the  pattern (other than in a character class) and characters between a
+       # outside a character class and the next newline are ignored. An escap-
+       ing  backslash  can  be used to include a white space or # character as
+       part of the pattern.
+
+       If you want to remove the special meaning from a  sequence  of  charac-
+       ters,  you can do so by putting them between \Q and \E. This is differ-
+       ent from Perl in that $ and  @  are  handled  as  literals  in  \Q...\E
+       sequences  in  PCRE, whereas in Perl, $ and @ cause variable interpola-
+       tion. Note the following examples:
+
+         Pattern            PCRE matches   Perl matches
+
+         \Qabc$xyz\E        abc$xyz        abc followed by the
+                                             contents of $xyz
+         \Qabc\$xyz\E       abc\$xyz       abc\$xyz
+         \Qabc\E\$\Qxyz\E   abc$xyz        abc$xyz
+
+       The \Q...\E sequence is recognized both inside  and  outside  character
+       classes.   An  isolated \E that is not preceded by \Q is ignored. If \Q
+       is not followed by \E later in the pattern, the literal  interpretation
+       continues  to  the  end  of  the pattern (that is, \E is assumed at the
+       end). If the isolated \Q is inside a character class,  this  causes  an
+       error, because the character class is not terminated.
+
+   Non-printing characters
+
+       A second use of backslash provides a way of encoding non-printing char-
+       acters in patterns in a visible manner. There is no restriction on  the
+       appearance  of non-printing characters, apart from the binary zero that
+       terminates a pattern, but when a pattern  is  being  prepared  by  text
+       editing,  it  is  often  easier  to  use  one  of  the following escape
+       sequences than the binary character it represents:
+
+         \a        alarm, that is, the BEL character (hex 07)
+         \cx       "control-x", where x is any ASCII character
+         \e        escape (hex 1B)
+         \f        form feed (hex 0C)
+         \n        linefeed (hex 0A)
+         \r        carriage return (hex 0D)
+         \t        tab (hex 09)
+         \ddd      character with octal code ddd, or back reference
+         \xhh      character with hex code hh
+         \x{hhh..} character with hex code hhh.. (non-JavaScript mode)
+         \uhhhh    character with hex code hhhh (JavaScript mode only)
+
+       The precise effect of \cx is as follows: if x is a lower  case  letter,
+       it  is converted to upper case. Then bit 6 of the character (hex 40) is
+       inverted.  Thus \cz becomes hex 1A (z is 7A), but \c{ becomes hex 3B ({
+       is  7B),  while  \c; becomes hex 7B (; is 3B). If the byte following \c
+       has a value greater than 127, a compile-time error occurs.  This  locks
+       out non-ASCII characters in all modes. (When PCRE is compiled in EBCDIC
+       mode, all byte values are valid. A lower case letter  is  converted  to
+       upper case, and then the 0xc0 bits are flipped.)
+
+       By  default,  after  \x,  from  zero to two hexadecimal digits are read
+       (letters can be in upper or lower case). Any number of hexadecimal dig-
+       its may appear between \x{ and }, but the character code is constrained
+       as follows:
+
+         8-bit non-UTF mode    less than 0x100
+         8-bit UTF-8 mode      less than 0x10ffff and a valid codepoint
+         16-bit non-UTF mode   less than 0x10000
+         16-bit UTF-16 mode    less than 0x10ffff and a valid codepoint
+
+       Invalid Unicode codepoints are the range  0xd800  to  0xdfff  (the  so-
+       called "surrogate" codepoints).
+
+       If  characters  other than hexadecimal digits appear between \x{ and },
+       or if there is no terminating }, this form of escape is not recognized.
+       Instead,  the  initial  \x  will  be interpreted as a basic hexadecimal
+       escape, with no following digits, giving a  character  whose  value  is
+       zero.
+
+       If  the  PCRE_JAVASCRIPT_COMPAT option is set, the interpretation of \x
+       is as just described only when it is followed by two  hexadecimal  dig-
+       its.   Otherwise,  it  matches  a  literal "x" character. In JavaScript
+       mode, support for code points greater than 256 is provided by \u, which
+       must  be  followed  by  four hexadecimal digits; otherwise it matches a
+       literal "u" character.  Character codes specified by \u  in  JavaScript
+       mode  are  constrained in the same was as those specified by \x in non-
+       JavaScript mode.
+
+       Characters whose value is less than 256 can be defined by either of the
+       two  syntaxes for \x (or by \u in JavaScript mode). There is no differ-
+       ence in the way they are handled. For example, \xdc is exactly the same
+       as \x{dc} (or \u00dc in JavaScript mode).
+
+       After  \0  up  to two further octal digits are read. If there are fewer
+       than two digits, just  those  that  are  present  are  used.  Thus  the
+       sequence \0\x\07 specifies two binary zeros followed by a BEL character
+       (code value 7). Make sure you supply two digits after the initial  zero
+       if the pattern character that follows is itself an octal digit.
+
+       The handling of a backslash followed by a digit other than 0 is compli-
+       cated.  Outside a character class, PCRE reads it and any following dig-
+       its  as  a  decimal  number. If the number is less than 10, or if there
+       have been at least that many previous capturing left parentheses in the
+       expression,  the  entire  sequence  is  taken  as  a  back reference. A
+       description of how this works is given later, following the  discussion
+       of parenthesized subpatterns.
+
+       Inside  a  character  class, or if the decimal number is greater than 9
+       and there have not been that many capturing subpatterns, PCRE  re-reads
+       up to three octal digits following the backslash, and uses them to gen-
+       erate a data character. Any subsequent digits stand for themselves. The
+       value  of  the  character  is constrained in the same way as characters
+       specified in hexadecimal.  For example:
+
+         \040   is another way of writing a space
+         \40    is the same, provided there are fewer than 40
+                   previous capturing subpatterns
+         \7     is always a back reference
+         \11    might be a back reference, or another way of
+                   writing a tab
+         \011   is always a tab
+         \0113  is a tab followed by the character "3"
+         \113   might be a back reference, otherwise the
+                   character with octal code 113
+         \377   might be a back reference, otherwise
+                   the value 255 (decimal)
+         \81    is either a back reference, or a binary zero
+                   followed by the two characters "8" and "1"
+
+       Note that octal values of 100 or greater must not be  introduced  by  a
+       leading zero, because no more than three octal digits are ever read.
+
+       All the sequences that define a single character value can be used both
+       inside and outside character classes. In addition, inside  a  character
+       class, \b is interpreted as the backspace character (hex 08).
+
+       \N  is not allowed in a character class. \B, \R, and \X are not special
+       inside a character class. Like  other  unrecognized  escape  sequences,
+       they  are  treated  as  the  literal  characters  "B",  "R", and "X" by
+       default, but cause an error if the PCRE_EXTRA option is set. Outside  a
+       character class, these sequences have different meanings.
+
+   Unsupported escape sequences
+
+       In  Perl, the sequences \l, \L, \u, and \U are recognized by its string
+       handler and used  to  modify  the  case  of  following  characters.  By
+       default,  PCRE does not support these escape sequences. However, if the
+       PCRE_JAVASCRIPT_COMPAT option is set, \U matches a "U"  character,  and
+       \u can be used to define a character by code point, as described in the
+       previous section.
+
+   Absolute and relative back references
+
+       The sequence \g followed by an unsigned or a negative  number,  option-
+       ally  enclosed  in braces, is an absolute or relative back reference. A
+       named back reference can be coded as \g{name}. Back references are dis-
+       cussed later, following the discussion of parenthesized subpatterns.
+
+   Absolute and relative subroutine calls
+
+       For  compatibility with Oniguruma, the non-Perl syntax \g followed by a
+       name or a number enclosed either in angle brackets or single quotes, is
+       an  alternative  syntax for referencing a subpattern as a "subroutine".
+       Details are discussed later.   Note  that  \g{...}  (Perl  syntax)  and
+       \g<...>  (Oniguruma  syntax)  are  not synonymous. The former is a back
+       reference; the latter is a subroutine call.
+
+   Generic character types
+
+       Another use of backslash is for specifying generic character types:
+
+         \d     any decimal digit
+         \D     any character that is not a decimal digit
+         \h     any horizontal white space character
+         \H     any character that is not a horizontal white space character
+         \s     any white space character
+         \S     any character that is not a white space character
+         \v     any vertical white space character
+         \V     any character that is not a vertical white space character
+         \w     any "word" character
+         \W     any "non-word" character
+
+       There is also the single sequence \N, which matches a non-newline char-
+       acter.   This  is the same as the "." metacharacter when PCRE_DOTALL is
+       not set. Perl also uses \N to match characters by name; PCRE  does  not
+       support this.
+
+       Each  pair of lower and upper case escape sequences partitions the com-
+       plete set of characters into two disjoint  sets.  Any  given  character
+       matches  one, and only one, of each pair. The sequences can appear both
+       inside and outside character classes. They each match one character  of
+       the  appropriate  type.  If the current matching point is at the end of
+       the subject string, all of them fail, because there is no character  to
+       match.
+
+       For  compatibility  with Perl, \s does not match the VT character (code
+       11).  This makes it different from the the POSIX "space" class. The  \s
+       characters  are  HT  (9), LF (10), FF (12), CR (13), and space (32). If
+       "use locale;" is included in a Perl script, \s may match the VT charac-
+       ter. In PCRE, it never does.
+
+       A  "word"  character is an underscore or any character that is a letter
+       or digit.  By default, the definition of letters  and  digits  is  con-
+       trolled  by PCRE's low-valued character tables, and may vary if locale-
+       specific matching is taking place (see "Locale support" in the  pcreapi
+       page).  For  example,  in  a French locale such as "fr_FR" in Unix-like
+       systems, or "french" in Windows, some character codes greater than  128
+       are  used  for  accented letters, and these are then matched by \w. The
+       use of locales with Unicode is discouraged.
+
+       By default, in a UTF mode, characters  with  values  greater  than  128
+       never  match  \d,  \s,  or  \w,  and always match \D, \S, and \W. These
+       sequences retain their original meanings from before  UTF  support  was
+       available,  mainly for efficiency reasons. However, if PCRE is compiled
+       with Unicode property support, and the PCRE_UCP option is set, the  be-
+       haviour  is  changed  so  that Unicode properties are used to determine
+       character types, as follows:
+
+         \d  any character that \p{Nd} matches (decimal digit)
+         \s  any character that \p{Z} matches, plus HT, LF, FF, CR
+         \w  any character that \p{L} or \p{N} matches, plus underscore
+
+       The upper case escapes match the inverse sets of characters. Note  that
+       \d  matches  only decimal digits, whereas \w matches any Unicode digit,
+       as well as any Unicode letter, and underscore. Note also that  PCRE_UCP
+       affects  \b,  and  \B  because  they are defined in terms of \w and \W.
+       Matching these sequences is noticeably slower when PCRE_UCP is set.
+
+       The sequences \h, \H, \v, and \V are features that were added  to  Perl
+       at  release  5.10. In contrast to the other sequences, which match only
+       ASCII characters by default, these  always  match  certain  high-valued
+       codepoints,  whether or not PCRE_UCP is set. The horizontal space char-
+       acters are:
+
+         U+0009     Horizontal tab
+         U+0020     Space
+         U+00A0     Non-break space
+         U+1680     Ogham space mark
+         U+180E     Mongolian vowel separator
+         U+2000     En quad
+         U+2001     Em quad
+         U+2002     En space
+         U+2003     Em space
+         U+2004     Three-per-em space
+         U+2005     Four-per-em space
+         U+2006     Six-per-em space
+         U+2007     Figure space
+         U+2008     Punctuation space
+         U+2009     Thin space
+         U+200A     Hair space
+         U+202F     Narrow no-break space
+         U+205F     Medium mathematical space
+         U+3000     Ideographic space
+
+       The vertical space characters are:
+
+         U+000A     Linefeed
+         U+000B     Vertical tab
+         U+000C     Form feed
+         U+000D     Carriage return
+         U+0085     Next line
+         U+2028     Line separator
+         U+2029     Paragraph separator
+
+       In 8-bit, non-UTF-8 mode, only the characters with codepoints less than
+       256 are relevant.
+
+   Newline sequences
+
+       Outside  a  character class, by default, the escape sequence \R matches
+       any Unicode newline sequence. In 8-bit non-UTF-8 mode \R is  equivalent
+       to the following:
+
+         (?>\r\n|\n|\x0b|\f|\r|\x85)
+
+       This  is  an  example  of an "atomic group", details of which are given
+       below.  This particular group matches either the two-character sequence
+       CR  followed  by  LF,  or  one  of  the single characters LF (linefeed,
+       U+000A), VT (vertical tab, U+000B), FF (form feed,  U+000C),  CR  (car-
+       riage  return,  U+000D),  or NEL (next line, U+0085). The two-character
+       sequence is treated as a single unit that cannot be split.
+
+       In other modes, two additional characters whose codepoints are  greater
+       than 255 are added: LS (line separator, U+2028) and PS (paragraph sepa-
+       rator, U+2029).  Unicode character property support is not  needed  for
+       these characters to be recognized.
+
+       It is possible to restrict \R to match only CR, LF, or CRLF (instead of
+       the complete set  of  Unicode  line  endings)  by  setting  the  option
+       PCRE_BSR_ANYCRLF either at compile time or when the pattern is matched.
+       (BSR is an abbrevation for "backslash R".) This can be made the default
+       when  PCRE  is  built;  if this is the case, the other behaviour can be
+       requested via the PCRE_BSR_UNICODE option.   It  is  also  possible  to
+       specify  these  settings  by  starting a pattern string with one of the
+       following sequences:
+
+         (*BSR_ANYCRLF)   CR, LF, or CRLF only
+         (*BSR_UNICODE)   any Unicode newline sequence
+
+       These override the default and the options given to the compiling func-
+       tion,  but  they  can  themselves  be  overridden by options given to a
+       matching function. Note that these  special  settings,  which  are  not
+       Perl-compatible,  are  recognized  only at the very start of a pattern,
+       and that they must be in upper case.  If  more  than  one  of  them  is
+       present,  the  last  one is used. They can be combined with a change of
+       newline convention; for example, a pattern can start with:
+
+         (*ANY)(*BSR_ANYCRLF)
+
+       They can also be combined with the (*UTF8), (*UTF16), or (*UCP) special
+       sequences.  Inside  a character class, \R is treated as an unrecognized
+       escape sequence, and so matches the letter "R" by default,  but  causes
+       an error if PCRE_EXTRA is set.
+
+   Unicode character properties
+
+       When PCRE is built with Unicode character property support, three addi-
+       tional escape sequences that match characters with specific  properties
+       are  available.   When  in 8-bit non-UTF-8 mode, these sequences are of
+       course limited to testing characters whose  codepoints  are  less  than
+       256, but they do work in this mode.  The extra escape sequences are:
+
+         \p{xx}   a character with the xx property
+         \P{xx}   a character without the xx property
+         \X       an extended Unicode sequence
+
+       The  property  names represented by xx above are limited to the Unicode
+       script names, the general category properties, "Any", which matches any
+       character   (including  newline),  and  some  special  PCRE  properties
+       (described in the next section).  Other Perl properties such as  "InMu-
+       sicalSymbols"  are  not  currently supported by PCRE. Note that \P{Any}
+       does not match any characters, so always causes a match failure.
+
+       Sets of Unicode characters are defined as belonging to certain scripts.
+       A  character from one of these sets can be matched using a script name.
+       For example:
+
+         \p{Greek}
+         \P{Han}
+
+       Those that are not part of an identified script are lumped together  as
+       "Common". The current list of scripts is:
+
+       Arabic,  Armenian,  Avestan, Balinese, Bamum, Batak, Bengali, Bopomofo,
+       Brahmi, Braille, Buginese, Buhid, Canadian_Aboriginal, Carian,  Chakma,
+       Cham,  Cherokee, Common, Coptic, Cuneiform, Cypriot, Cyrillic, Deseret,
+       Devanagari,  Egyptian_Hieroglyphs,  Ethiopic,   Georgian,   Glagolitic,
+       Gothic,  Greek, Gujarati, Gurmukhi, Han, Hangul, Hanunoo, Hebrew, Hira-
+       gana,  Imperial_Aramaic,  Inherited,  Inscriptional_Pahlavi,   Inscrip-
+       tional_Parthian,   Javanese,   Kaithi,   Kannada,  Katakana,  Kayah_Li,
+       Kharoshthi, Khmer, Lao, Latin, Lepcha, Limbu, Linear_B,  Lisu,  Lycian,
+       Lydian,    Malayalam,    Mandaic,    Meetei_Mayek,    Meroitic_Cursive,
+       Meroitic_Hieroglyphs,  Miao,  Mongolian,  Myanmar,  New_Tai_Lue,   Nko,
+       Ogham,    Old_Italic,   Old_Persian,   Old_South_Arabian,   Old_Turkic,
+       Ol_Chiki, Oriya, Osmanya, Phags_Pa, Phoenician, Rejang, Runic,  Samari-
+       tan,  Saurashtra,  Sharada,  Shavian, Sinhala, Sora_Sompeng, Sundanese,
+       Syloti_Nagri, Syriac, Tagalog, Tagbanwa,  Tai_Le,  Tai_Tham,  Tai_Viet,
+       Takri,  Tamil,  Telugu, Thaana, Thai, Tibetan, Tifinagh, Ugaritic, Vai,
+       Yi.
+
+       Each character has exactly one Unicode general category property, spec-
+       ified  by a two-letter abbreviation. For compatibility with Perl, nega-
+       tion can be specified by including a  circumflex  between  the  opening
+       brace  and  the  property  name.  For  example,  \p{^Lu} is the same as
+       \P{Lu}.
+
+       If only one letter is specified with \p or \P, it includes all the gen-
+       eral  category properties that start with that letter. In this case, in
+       the absence of negation, the curly brackets in the escape sequence  are
+       optional; these two examples have the same effect:
+
+         \p{L}
+         \pL
+
+       The following general category property codes are supported:
+
+         C     Other
+         Cc    Control
+         Cf    Format
+         Cn    Unassigned
+         Co    Private use
+         Cs    Surrogate
+
+         L     Letter
+         Ll    Lower case letter
+         Lm    Modifier letter
+         Lo    Other letter
+         Lt    Title case letter
+         Lu    Upper case letter
+
+         M     Mark
+         Mc    Spacing mark
+         Me    Enclosing mark
+         Mn    Non-spacing mark
+
+         N     Number
+         Nd    Decimal number
+         Nl    Letter number
+         No    Other number
+
+         P     Punctuation
+         Pc    Connector punctuation
+         Pd    Dash punctuation
+         Pe    Close punctuation
+         Pf    Final punctuation
+         Pi    Initial punctuation
+         Po    Other punctuation
+         Ps    Open punctuation
+
+         S     Symbol
+         Sc    Currency symbol
+         Sk    Modifier symbol
+         Sm    Mathematical symbol
+         So    Other symbol
+
+         Z     Separator
+         Zl    Line separator
+         Zp    Paragraph separator
+         Zs    Space separator
+
+       The  special property L& is also supported: it matches a character that
+       has the Lu, Ll, or Lt property, in other words, a letter  that  is  not
+       classified as a modifier or "other".
+
+       The  Cs  (Surrogate)  property  applies only to characters in the range
+       U+D800 to U+DFFF. Such characters are not valid in Unicode strings  and
+       so  cannot  be  tested  by  PCRE, unless UTF validity checking has been
+       turned   off   (see   the   discussion   of   PCRE_NO_UTF8_CHECK    and
+       PCRE_NO_UTF16_CHECK  in the pcreapi page). Perl does not support the Cs
+       property.
+
+       The long synonyms for  property  names  that  Perl  supports  (such  as
+       \p{Letter})  are  not  supported by PCRE, nor is it permitted to prefix
+       any of these properties with "Is".
+
+       No character that is in the Unicode table has the Cn (unassigned) prop-
+       erty.  Instead, this property is assumed for any code point that is not
+       in the Unicode table.
+
+       Specifying caseless matching does not affect  these  escape  sequences.
+       For example, \p{Lu} always matches only upper case letters.
+
+       The  \X  escape  matches  any number of Unicode characters that form an
+       extended Unicode sequence. \X is equivalent to
+
+         (?>\PM\pM*)
+
+       That is, it matches a character without the "mark"  property,  followed
+       by  zero  or  more  characters with the "mark" property, and treats the
+       sequence as an atomic group (see below).  Characters  with  the  "mark"
+       property  are  typically  accents  that affect the preceding character.
+       None of them have codepoints less than 256, so in 8-bit non-UTF-8  mode
+       \X matches any one character.
+
+       Note that recent versions of Perl have changed \X to match what Unicode
+       calls an "extended grapheme cluster", which has a more complicated def-
+       inition.
+
+       Matching  characters  by Unicode property is not fast, because PCRE has
+       to search a structure that contains  data  for  over  fifteen  thousand
+       characters. That is why the traditional escape sequences such as \d and
+       \w do not use Unicode properties in PCRE by  default,  though  you  can
+       make  them do so by setting the PCRE_UCP option or by starting the pat-
+       tern with (*UCP).
+
+   PCRE's additional properties
+
+       As well as the standard Unicode properties described  in  the  previous
+       section,  PCRE supports four more that make it possible to convert tra-
+       ditional escape sequences such as \w and \s and POSIX character classes
+       to use Unicode properties. PCRE uses these non-standard, non-Perl prop-
+       erties internally when PCRE_UCP is set. They are:
+
+         Xan   Any alphanumeric character
+         Xps   Any POSIX space character
+         Xsp   Any Perl space character
+         Xwd   Any Perl "word" character
+
+       Xan matches characters that have either the L (letter) or the  N  (num-
+       ber)  property. Xps matches the characters tab, linefeed, vertical tab,
+       form feed, or carriage return, and any other character that has  the  Z
+       (separator) property.  Xsp is the same as Xps, except that vertical tab
+       is excluded. Xwd matches the same characters as Xan, plus underscore.
+
+   Resetting the match start
+
+       The escape sequence \K causes any previously matched characters not  to
+       be included in the final matched sequence. For example, the pattern:
+
+         foo\Kbar
+
+       matches  "foobar",  but reports that it has matched "bar". This feature
+       is similar to a lookbehind assertion (described  below).   However,  in
+       this  case, the part of the subject before the real match does not have
+       to be of fixed length, as lookbehind assertions do. The use of \K  does
+       not  interfere  with  the setting of captured substrings.  For example,
+       when the pattern
+
+         (foo)\Kbar
+
+       matches "foobar", the first substring is still set to "foo".
+
+       Perl documents that the use  of  \K  within  assertions  is  "not  well
+       defined".  In  PCRE,  \K  is  acted upon when it occurs inside positive
+       assertions, but is ignored in negative assertions.
+
+   Simple assertions
+
+       The final use of backslash is for certain simple assertions. An  asser-
+       tion  specifies a condition that has to be met at a particular point in
+       a match, without consuming any characters from the subject string.  The
+       use  of subpatterns for more complicated assertions is described below.
+       The backslashed assertions are:
+
+         \b     matches at a word boundary
+         \B     matches when not at a word boundary
+         \A     matches at the start of the subject
+         \Z     matches at the end of the subject
+                 also matches before a newline at the end of the subject
+         \z     matches only at the end of the subject
+         \G     matches at the first matching position in the subject
+
+       Inside a character class, \b has a different meaning;  it  matches  the
+       backspace  character.  If  any  other  of these assertions appears in a
+       character class, by default it matches the corresponding literal  char-
+       acter  (for  example,  \B  matches  the  letter  B).  However,  if  the
+       PCRE_EXTRA option is set, an "invalid escape sequence" error is  gener-
+       ated instead.
+
+       A  word  boundary is a position in the subject string where the current
+       character and the previous character do not both match \w or  \W  (i.e.
+       one  matches  \w  and the other matches \W), or the start or end of the
+       string if the first or last character matches \w,  respectively.  In  a
+       UTF  mode,  the  meanings  of  \w  and \W can be changed by setting the
+       PCRE_UCP option. When this is done, it also affects \b and \B.  Neither
+       PCRE  nor  Perl has a separate "start of word" or "end of word" metase-
+       quence. However, whatever follows \b normally determines which  it  is.
+       For example, the fragment \ba matches "a" at the start of a word.
+
+       The  \A,  \Z,  and \z assertions differ from the traditional circumflex
+       and dollar (described in the next section) in that they only ever match
+       at  the  very start and end of the subject string, whatever options are
+       set. Thus, they are independent of multiline mode. These  three  asser-
+       tions are not affected by the PCRE_NOTBOL or PCRE_NOTEOL options, which
+       affect only the behaviour of the circumflex and dollar  metacharacters.
+       However,  if the startoffset argument of pcre_exec() is non-zero, indi-
+       cating that matching is to start at a point other than the beginning of
+       the  subject,  \A  can never match. The difference between \Z and \z is
+       that \Z matches before a newline at the end of the string as well as at
+       the very end, whereas \z matches only at the end.
+
+       The  \G assertion is true only when the current matching position is at
+       the start point of the match, as specified by the startoffset  argument
+       of  pcre_exec().  It  differs  from \A when the value of startoffset is
+       non-zero. By calling pcre_exec() multiple times with appropriate  argu-
+       ments, you can mimic Perl's /g option, and it is in this kind of imple-
+       mentation where \G can be useful.
+
+       Note, however, that PCRE's interpretation of \G, as the  start  of  the
+       current match, is subtly different from Perl's, which defines it as the
+       end of the previous match. In Perl, these can  be  different  when  the
+       previously  matched  string was empty. Because PCRE does just one match
+       at a time, it cannot reproduce this behaviour.
+
+       If all the alternatives of a pattern begin with \G, the  expression  is
+       anchored to the starting match position, and the "anchored" flag is set
+       in the compiled regular expression.
+
+
+CIRCUMFLEX AND DOLLAR
+
+       Outside a character class, in the default matching mode, the circumflex
+       character  is  an  assertion  that is true only if the current matching
+       point is at the start of the subject string. If the  startoffset  argu-
+       ment  of  pcre_exec()  is  non-zero,  circumflex can never match if the
+       PCRE_MULTILINE option is unset. Inside a  character  class,  circumflex
+       has an entirely different meaning (see below).
+
+       Circumflex  need  not be the first character of the pattern if a number
+       of alternatives are involved, but it should be the first thing in  each
+       alternative  in  which  it appears if the pattern is ever to match that
+       branch. If all possible alternatives start with a circumflex, that  is,
+       if  the  pattern  is constrained to match only at the start of the sub-
+       ject, it is said to be an "anchored" pattern.  (There  are  also  other
+       constructs that can cause a pattern to be anchored.)
+
+       A  dollar  character  is  an assertion that is true only if the current
+       matching point is at the end of  the  subject  string,  or  immediately
+       before a newline at the end of the string (by default). Dollar need not
+       be the last character of the pattern if a number  of  alternatives  are
+       involved,  but  it  should  be  the last item in any branch in which it
+       appears. Dollar has no special meaning in a character class.
+
+       The meaning of dollar can be changed so that it  matches  only  at  the
+       very  end  of  the string, by setting the PCRE_DOLLAR_ENDONLY option at
+       compile time. This does not affect the \Z assertion.
+
+       The meanings of the circumflex and dollar characters are changed if the
+       PCRE_MULTILINE  option  is  set.  When  this  is the case, a circumflex
+       matches immediately after internal newlines as well as at the start  of
+       the  subject  string.  It  does not match after a newline that ends the
+       string. A dollar matches before any newlines in the string, as well  as
+       at  the very end, when PCRE_MULTILINE is set. When newline is specified
+       as the two-character sequence CRLF, isolated CR and  LF  characters  do
+       not indicate newlines.
+
+       For  example, the pattern /^abc$/ matches the subject string "def\nabc"
+       (where \n represents a newline) in multiline mode, but  not  otherwise.
+       Consequently,  patterns  that  are anchored in single line mode because
+       all branches start with ^ are not anchored in  multiline  mode,  and  a
+       match  for  circumflex  is  possible  when  the startoffset argument of
+       pcre_exec() is non-zero. The PCRE_DOLLAR_ENDONLY option is  ignored  if
+       PCRE_MULTILINE is set.
+
+       Note  that  the sequences \A, \Z, and \z can be used to match the start
+       and end of the subject in both modes, and if all branches of a  pattern
+       start  with  \A it is always anchored, whether or not PCRE_MULTILINE is
+       set.
+
+
+FULL STOP (PERIOD, DOT) AND \N
+
+       Outside a character class, a dot in the pattern matches any one charac-
+       ter  in  the subject string except (by default) a character that signi-
+       fies the end of a line.
+
+       When a line ending is defined as a single character, dot never  matches
+       that  character; when the two-character sequence CRLF is used, dot does
+       not match CR if it is immediately followed  by  LF,  but  otherwise  it
+       matches  all characters (including isolated CRs and LFs). When any Uni-
+       code line endings are being recognized, dot does not match CR or LF  or
+       any of the other line ending characters.
+
+       The  behaviour  of  dot  with regard to newlines can be changed. If the
+       PCRE_DOTALL option is set, a dot matches  any  one  character,  without
+       exception. If the two-character sequence CRLF is present in the subject
+       string, it takes two dots to match it.
+
+       The handling of dot is entirely independent of the handling of  circum-
+       flex  and  dollar,  the  only relationship being that they both involve
+       newlines. Dot has no special meaning in a character class.
+
+       The escape sequence \N behaves like  a  dot,  except  that  it  is  not
+       affected  by  the  PCRE_DOTALL  option.  In other words, it matches any
+       character except one that signifies the end of a line. Perl  also  uses
+       \N to match characters by name; PCRE does not support this.
+
+
+MATCHING A SINGLE DATA UNIT
+
+       Outside  a character class, the escape sequence \C matches any one data
+       unit, whether or not a UTF mode is set. In the 8-bit library, one  data
+       unit  is  one byte; in the 16-bit library it is a 16-bit unit. Unlike a
+       dot, \C always matches line-ending characters. The feature is  provided
+       in  Perl  in  order  to match individual bytes in UTF-8 mode, but it is
+       unclear how it can usefully be used. Because \C  breaks  up  characters
+       into  individual  data  units,  matching one unit with \C in a UTF mode
+       means that the rest of the string may start with a malformed UTF  char-
+       acter.  This  has  undefined  results,  because PCRE assumes that it is
+       dealing with valid UTF strings (and by default it checks  this  at  the
+       start     of    processing    unless    the    PCRE_NO_UTF8_CHECK    or
+       PCRE_NO_UTF16_CHECK option is used).
+
+       PCRE does not allow \C to appear in  lookbehind  assertions  (described
+       below)  in  a UTF mode, because this would make it impossible to calcu-
+       late the length of the lookbehind.
+
+       In general, the \C escape sequence is best avoided. However, one way of
+       using  it that avoids the problem of malformed UTF characters is to use
+       a lookahead to check the length of the next character, as in this  pat-
+       tern,  which  could be used with a UTF-8 string (ignore white space and
+       line breaks):
+
+         (?| (?=[\x00-\x7f])(\C) |
+             (?=[\x80-\x{7ff}])(\C)(\C) |
+             (?=[\x{800}-\x{ffff}])(\C)(\C)(\C) |
+             (?=[\x{10000}-\x{1fffff}])(\C)(\C)(\C)(\C))
+
+       A group that starts with (?| resets the capturing  parentheses  numbers
+       in  each  alternative  (see  "Duplicate Subpattern Numbers" below). The
+       assertions at the start of each branch check the next  UTF-8  character
+       for  values  whose encoding uses 1, 2, 3, or 4 bytes, respectively. The
+       character's individual bytes are then captured by the appropriate  num-
+       ber of groups.
+
+
+SQUARE BRACKETS AND CHARACTER CLASSES
+
+       An opening square bracket introduces a character class, terminated by a
+       closing square bracket. A closing square bracket on its own is not spe-
+       cial by default.  However, if the PCRE_JAVASCRIPT_COMPAT option is set,
+       a lone closing square bracket causes a compile-time error. If a closing
+       square  bracket  is required as a member of the class, it should be the
+       first data character in the class  (after  an  initial  circumflex,  if
+       present) or escaped with a backslash.
+
+       A  character  class matches a single character in the subject. In a UTF
+       mode, the character may be more than one  data  unit  long.  A  matched
+       character must be in the set of characters defined by the class, unless
+       the first character in the class definition is a circumflex,  in  which
+       case the subject character must not be in the set defined by the class.
+       If a circumflex is actually required as a member of the  class,  ensure
+       it is not the first character, or escape it with a backslash.
+
+       For  example, the character class [aeiou] matches any lower case vowel,
+       while [^aeiou] matches any character that is not a  lower  case  vowel.
+       Note that a circumflex is just a convenient notation for specifying the
+       characters that are in the class by enumerating those that are  not.  A
+       class  that starts with a circumflex is not an assertion; it still con-
+       sumes a character from the subject string, and therefore  it  fails  if
+       the current pointer is at the end of the string.
+
+       In  UTF-8  (UTF-16)  mode,  characters  with  values  greater  than 255
+       (0xffff) can be included in a class as a literal string of data  units,
+       or by using the \x{ escaping mechanism.
+
+       When  caseless  matching  is set, any letters in a class represent both
+       their upper case and lower case versions, so for  example,  a  caseless
+       [aeiou]  matches  "A"  as well as "a", and a caseless [^aeiou] does not
+       match "A", whereas a caseful version would. In a UTF mode, PCRE  always
+       understands  the  concept  of case for characters whose values are less
+       than 128, so caseless matching is always possible. For characters  with
+       higher  values,  the  concept  of case is supported if PCRE is compiled
+       with Unicode property support, but not otherwise.  If you want  to  use
+       caseless  matching in a UTF mode for characters 128 and above, you must
+       ensure that PCRE is compiled with Unicode property support as  well  as
+       with UTF support.
+
+       Characters  that  might  indicate  line breaks are never treated in any
+       special way  when  matching  character  classes,  whatever  line-ending
+       sequence  is  in  use,  and  whatever  setting  of  the PCRE_DOTALL and
+       PCRE_MULTILINE options is used. A class such as [^a] always matches one
+       of these characters.
+
+       The  minus (hyphen) character can be used to specify a range of charac-
+       ters in a character  class.  For  example,  [d-m]  matches  any  letter
+       between  d  and  m,  inclusive.  If  a minus character is required in a
+       class, it must be escaped with a backslash  or  appear  in  a  position
+       where  it cannot be interpreted as indicating a range, typically as the
+       first or last character in the class.
+
+       It is not possible to have the literal character "]" as the end charac-
+       ter  of a range. A pattern such as [W-]46] is interpreted as a class of
+       two characters ("W" and "-") followed by a literal string "46]", so  it
+       would  match  "W46]"  or  "-46]". However, if the "]" is escaped with a
+       backslash it is interpreted as the end of range, so [W-\]46] is  inter-
+       preted  as a class containing a range followed by two other characters.
+       The octal or hexadecimal representation of "]" can also be used to  end
+       a range.
+
+       Ranges  operate in the collating sequence of character values. They can
+       also  be  used  for  characters  specified  numerically,  for   example
+       [\000-\037].  Ranges  can include any characters that are valid for the
+       current mode.
+
+       If a range that includes letters is used when caseless matching is set,
+       it matches the letters in either case. For example, [W-c] is equivalent
+       to [][\\^_`wxyzabc], matched caselessly, and  in  a  non-UTF  mode,  if
+       character  tables  for  a French locale are in use, [\xc8-\xcb] matches
+       accented E characters in both cases. In UTF modes,  PCRE  supports  the
+       concept  of  case for characters with values greater than 128 only when
+       it is compiled with Unicode property support.
+
+       The character escape sequences \d, \D, \h, \H, \p, \P, \s, \S, \v,  \V,
+       \w, and \W may appear in a character class, and add the characters that
+       they match to the class. For example, [\dABCDEF] matches any  hexadeci-
+       mal  digit.  In  UTF modes, the PCRE_UCP option affects the meanings of
+       \d, \s, \w and their upper case partners, just as  it  does  when  they
+       appear  outside a character class, as described in the section entitled
+       "Generic character types" above. The escape sequence \b has a different
+       meaning  inside  a character class; it matches the backspace character.
+       The sequences \B, \N, \R, and \X are not  special  inside  a  character
+       class.  Like  any other unrecognized escape sequences, they are treated
+       as the literal characters "B", "N", "R", and "X" by default, but  cause
+       an error if the PCRE_EXTRA option is set.
+
+       A  circumflex  can  conveniently  be used with the upper case character
+       types to specify a more restricted set of characters than the  matching
+       lower  case  type.  For example, the class [^\W_] matches any letter or
+       digit, but not underscore, whereas [\w] includes underscore. A positive
+       character class should be read as "something OR something OR ..." and a
+       negative class as "NOT something AND NOT something AND NOT ...".
+
+       The only metacharacters that are recognized in  character  classes  are
+       backslash,  hyphen  (only  where  it can be interpreted as specifying a
+       range), circumflex (only at the start), opening  square  bracket  (only
+       when  it can be interpreted as introducing a POSIX class name - see the
+       next section), and the terminating  closing  square  bracket.  However,
+       escaping other non-alphanumeric characters does no harm.
+
+
+POSIX CHARACTER CLASSES
+
+       Perl supports the POSIX notation for character classes. This uses names
+       enclosed by [: and :] within the enclosing square brackets.  PCRE  also
+       supports this notation. For example,
+
+         [01[:alpha:]%]
+
+       matches "0", "1", any alphabetic character, or "%". The supported class
+       names are:
+
+         alnum    letters and digits
+         alpha    letters
+         ascii    character codes 0 - 127
+         blank    space or tab only
+         cntrl    control characters
+         digit    decimal digits (same as \d)
+         graph    printing characters, excluding space
+         lower    lower case letters
+         print    printing characters, including space
+         punct    printing characters, excluding letters and digits and space
+         space    white space (not quite the same as \s)
+         upper    upper case letters
+         word     "word" characters (same as \w)
+         xdigit   hexadecimal digits
+
+       The "space" characters are HT (9), LF (10), VT (11), FF (12), CR  (13),
+       and  space  (32). Notice that this list includes the VT character (code
+       11). This makes "space" different to \s, which does not include VT (for
+       Perl compatibility).
+
+       The  name  "word"  is  a Perl extension, and "blank" is a GNU extension
+       from Perl 5.8. Another Perl extension is negation, which  is  indicated
+       by a ^ character after the colon. For example,
+
+         [12[:^digit:]]
+
+       matches  "1", "2", or any non-digit. PCRE (and Perl) also recognize the
+       POSIX syntax [.ch.] and [=ch=] where "ch" is a "collating element", but
+       these are not supported, and an error is given if they are encountered.
+
+       By  default,  in  UTF modes, characters with values greater than 128 do
+       not match any of the POSIX character classes. However, if the  PCRE_UCP
+       option  is passed to pcre_compile(), some of the classes are changed so
+       that Unicode character properties are used. This is achieved by replac-
+       ing the POSIX classes by other sequences, as follows:
+
+         [:alnum:]  becomes  \p{Xan}
+         [:alpha:]  becomes  \p{L}
+         [:blank:]  becomes  \h
+         [:digit:]  becomes  \p{Nd}
+         [:lower:]  becomes  \p{Ll}
+         [:space:]  becomes  \p{Xps}
+         [:upper:]  becomes  \p{Lu}
+         [:word:]   becomes  \p{Xwd}
+
+       Negated  versions,  such  as [:^alpha:] use \P instead of \p. The other
+       POSIX classes are unchanged, and match only characters with code points
+       less than 128.
+
+
+VERTICAL BAR
+
+       Vertical  bar characters are used to separate alternative patterns. For
+       example, the pattern
+
+         gilbert|sullivan
+
+       matches either "gilbert" or "sullivan". Any number of alternatives  may
+       appear,  and  an  empty  alternative  is  permitted (matching the empty
+       string). The matching process tries each alternative in turn, from left
+       to  right, and the first one that succeeds is used. If the alternatives
+       are within a subpattern (defined below), "succeeds" means matching  the
+       rest of the main pattern as well as the alternative in the subpattern.
+
+
+INTERNAL OPTION SETTING
+
+       The  settings  of  the  PCRE_CASELESS, PCRE_MULTILINE, PCRE_DOTALL, and
+       PCRE_EXTENDED options (which are Perl-compatible) can be  changed  from
+       within  the  pattern  by  a  sequence  of  Perl option letters enclosed
+       between "(?" and ")".  The option letters are
+
+         i  for PCRE_CASELESS
+         m  for PCRE_MULTILINE
+         s  for PCRE_DOTALL
+         x  for PCRE_EXTENDED
+
+       For example, (?im) sets caseless, multiline matching. It is also possi-
+       ble to unset these options by preceding the letter with a hyphen, and a
+       combined setting and unsetting such as (?im-sx), which sets  PCRE_CASE-
+       LESS  and PCRE_MULTILINE while unsetting PCRE_DOTALL and PCRE_EXTENDED,
+       is also permitted. If a  letter  appears  both  before  and  after  the
+       hyphen, the option is unset.
+
+       The  PCRE-specific options PCRE_DUPNAMES, PCRE_UNGREEDY, and PCRE_EXTRA
+       can be changed in the same way as the Perl-compatible options by  using
+       the characters J, U and X respectively.
+
+       When  one  of  these  option  changes occurs at top level (that is, not
+       inside subpattern parentheses), the change applies to the remainder  of
+       the pattern that follows. If the change is placed right at the start of
+       a pattern, PCRE extracts it into the global options (and it will there-
+       fore show up in data extracted by the pcre_fullinfo() function).
+
+       An  option  change  within a subpattern (see below for a description of
+       subpatterns) affects only that part of the subpattern that follows  it,
+       so
+
+         (a(?i)b)c
+
+       matches abc and aBc and no other strings (assuming PCRE_CASELESS is not
+       used).  By this means, options can be made to have  different  settings
+       in  different parts of the pattern. Any changes made in one alternative
+       do carry on into subsequent branches within the  same  subpattern.  For
+       example,
+
+         (a(?i)b|c)
+
+       matches  "ab",  "aB",  "c",  and "C", even though when matching "C" the
+       first branch is abandoned before the option setting.  This  is  because
+       the  effects  of option settings happen at compile time. There would be
+       some very weird behaviour otherwise.
+
+       Note: There are other PCRE-specific options that  can  be  set  by  the
+       application  when  the  compiling  or matching functions are called. In
+       some cases the pattern can contain special leading  sequences  such  as
+       (*CRLF)  to  override  what  the  application  has set or what has been
+       defaulted.  Details  are  given  in  the  section   entitled   "Newline
+       sequences"  above.  There  are  also  the (*UTF8), (*UTF16), and (*UCP)
+       leading sequences that can be used to  set  UTF  and  Unicode  property
+       modes;  they  are  equivalent to setting the PCRE_UTF8, PCRE_UTF16, and
+       the PCRE_UCP options, respectively.
+
+
+SUBPATTERNS
+
+       Subpatterns are delimited by parentheses (round brackets), which can be
+       nested.  Turning part of a pattern into a subpattern does two things:
+
+       1. It localizes a set of alternatives. For example, the pattern
+
+         cat(aract|erpillar|)
+
+       matches  "cataract",  "caterpillar", or "cat". Without the parentheses,
+       it would match "cataract", "erpillar" or an empty string.
+
+       2. It sets up the subpattern as  a  capturing  subpattern.  This  means
+       that,  when  the  whole  pattern  matches,  that portion of the subject
+       string that matched the subpattern is passed back to the caller via the
+       ovector  argument  of  the matching function. (This applies only to the
+       traditional matching functions; the DFA matching functions do not  sup-
+       port capturing.)
+
+       Opening parentheses are counted from left to right (starting from 1) to
+       obtain numbers for the  capturing  subpatterns.  For  example,  if  the
+       string "the red king" is matched against the pattern
+
+         the ((red|white) (king|queen))
+
+       the captured substrings are "red king", "red", and "king", and are num-
+       bered 1, 2, and 3, respectively.
+
+       The fact that plain parentheses fulfil  two  functions  is  not  always
+       helpful.   There are often times when a grouping subpattern is required
+       without a capturing requirement. If an opening parenthesis is  followed
+       by  a question mark and a colon, the subpattern does not do any captur-
+       ing, and is not counted when computing the  number  of  any  subsequent
+       capturing  subpatterns. For example, if the string "the white queen" is
+       matched against the pattern
+
+         the ((?:red|white) (king|queen))
+
+       the captured substrings are "white queen" and "queen", and are numbered
+       1 and 2. The maximum number of capturing subpatterns is 65535.
+
+       As  a  convenient shorthand, if any option settings are required at the
+       start of a non-capturing subpattern,  the  option  letters  may  appear
+       between the "?" and the ":". Thus the two patterns
+
+         (?i:saturday|sunday)
+         (?:(?i)saturday|sunday)
+
+       match exactly the same set of strings. Because alternative branches are
+       tried from left to right, and options are not reset until  the  end  of
+       the  subpattern is reached, an option setting in one branch does affect
+       subsequent branches, so the above patterns match "SUNDAY"  as  well  as
+       "Saturday".
+
+
+DUPLICATE SUBPATTERN NUMBERS
+
+       Perl 5.10 introduced a feature whereby each alternative in a subpattern
+       uses the same numbers for its capturing parentheses. Such a  subpattern
+       starts  with (?| and is itself a non-capturing subpattern. For example,
+       consider this pattern:
+
+         (?|(Sat)ur|(Sun))day
+
+       Because the two alternatives are inside a (?| group, both sets of  cap-
+       turing  parentheses  are  numbered one. Thus, when the pattern matches,
+       you can look at captured substring number  one,  whichever  alternative
+       matched.  This  construct  is useful when you want to capture part, but
+       not all, of one of a number of alternatives. Inside a (?| group, paren-
+       theses  are  numbered as usual, but the number is reset at the start of
+       each branch. The numbers of any capturing parentheses that  follow  the
+       subpattern  start after the highest number used in any branch. The fol-
+       lowing example is taken from the Perl documentation. The numbers under-
+       neath show in which buffer the captured content will be stored.
+
+         # before  ---------------branch-reset----------- after
+         / ( a )  (?| x ( y ) z | (p (q) r) | (t) u (v) ) ( z ) /x
+         # 1            2         2  3        2     3     4
+
+       A  back  reference  to a numbered subpattern uses the most recent value
+       that is set for that number by any subpattern.  The  following  pattern
+       matches "abcabc" or "defdef":
+
+         /(?|(abc)|(def))\1/
+
+       In  contrast,  a subroutine call to a numbered subpattern always refers
+       to the first one in the pattern with the given  number.  The  following
+       pattern matches "abcabc" or "defabc":
+
+         /(?|(abc)|(def))(?1)/
+
+       If  a condition test for a subpattern's having matched refers to a non-
+       unique number, the test is true if any of the subpatterns of that  num-
+       ber have matched.
+
+       An  alternative approach to using this "branch reset" feature is to use
+       duplicate named subpatterns, as described in the next section.
+
+
+NAMED SUBPATTERNS
+
+       Identifying capturing parentheses by number is simple, but  it  can  be
+       very  hard  to keep track of the numbers in complicated regular expres-
+       sions. Furthermore, if an  expression  is  modified,  the  numbers  may
+       change.  To help with this difficulty, PCRE supports the naming of sub-
+       patterns. This feature was not added to Perl until release 5.10. Python
+       had  the  feature earlier, and PCRE introduced it at release 4.0, using
+       the Python syntax. PCRE now supports both the Perl and the Python  syn-
+       tax.  Perl  allows  identically  numbered subpatterns to have different
+       names, but PCRE does not.
+
+       In PCRE, a subpattern can be named in one of three  ways:  (?<name>...)
+       or  (?'name'...)  as in Perl, or (?P<name>...) as in Python. References
+       to capturing parentheses from other parts of the pattern, such as  back
+       references,  recursion,  and conditions, can be made by name as well as
+       by number.
+
+       Names consist of up to  32  alphanumeric  characters  and  underscores.
+       Named  capturing  parentheses  are  still  allocated numbers as well as
+       names, exactly as if the names were not present. The PCRE API  provides
+       function calls for extracting the name-to-number translation table from
+       a compiled pattern. There is also a convenience function for extracting
+       a captured substring by name.
+
+       By  default, a name must be unique within a pattern, but it is possible
+       to relax this constraint by setting the PCRE_DUPNAMES option at compile
+       time.  (Duplicate  names are also always permitted for subpatterns with
+       the same number, set up as described in the previous  section.)  Dupli-
+       cate  names  can  be useful for patterns where only one instance of the
+       named parentheses can match. Suppose you want to match the  name  of  a
+       weekday,  either as a 3-letter abbreviation or as the full name, and in
+       both cases you want to extract the abbreviation. This pattern (ignoring
+       the line breaks) does the job:
+
+         (?<DN>Mon|Fri|Sun)(?:day)?|
+         (?<DN>Tue)(?:sday)?|
+         (?<DN>Wed)(?:nesday)?|
+         (?<DN>Thu)(?:rsday)?|
+         (?<DN>Sat)(?:urday)?
+
+       There  are  five capturing substrings, but only one is ever set after a
+       match.  (An alternative way of solving this problem is to use a "branch
+       reset" subpattern, as described in the previous section.)
+
+       The  convenience  function  for extracting the data by name returns the
+       substring for the first (and in this example, the only)  subpattern  of
+       that  name  that  matched.  This saves searching to find which numbered
+       subpattern it was.
+
+       If you make a back reference to  a  non-unique  named  subpattern  from
+       elsewhere  in the pattern, the one that corresponds to the first occur-
+       rence of the name is used. In the absence of duplicate numbers (see the
+       previous  section) this is the one with the lowest number. If you use a
+       named reference in a condition test (see the section  about  conditions
+       below),  either  to check whether a subpattern has matched, or to check
+       for recursion, all subpatterns with the same name are  tested.  If  the
+       condition  is  true for any one of them, the overall condition is true.
+       This is the same behaviour as testing by number. For further details of
+       the interfaces for handling named subpatterns, see the pcreapi documen-
+       tation.
+
+       Warning: You cannot use different names to distinguish between two sub-
+       patterns  with  the same number because PCRE uses only the numbers when
+       matching. For this reason, an error is given at compile time if differ-
+       ent  names  are given to subpatterns with the same number. However, you
+       can give the same name to subpatterns with the same number,  even  when
+       PCRE_DUPNAMES is not set.
+
+
+REPETITION
+
+       Repetition  is  specified  by  quantifiers, which can follow any of the
+       following items:
+
+         a literal data character
+         the dot metacharacter
+         the \C escape sequence
+         the \X escape sequence
+         the \R escape sequence
+         an escape such as \d or \pL that matches a single character
+         a character class
+         a back reference (see next section)
+         a parenthesized subpattern (including assertions)
+         a subroutine call to a subpattern (recursive or otherwise)
+
+       The general repetition quantifier specifies a minimum and maximum  num-
+       ber  of  permitted matches, by giving the two numbers in curly brackets
+       (braces), separated by a comma. The numbers must be  less  than  65536,
+       and the first must be less than or equal to the second. For example:
+
+         z{2,4}
+
+       matches  "zz",  "zzz",  or  "zzzz". A closing brace on its own is not a
+       special character. If the second number is omitted, but  the  comma  is
+       present,  there  is  no upper limit; if the second number and the comma
+       are both omitted, the quantifier specifies an exact number of  required
+       matches. Thus
+
+         [aeiou]{3,}
+
+       matches at least 3 successive vowels, but may match many more, while
+
+         \d{8}
+
+       matches  exactly  8  digits. An opening curly bracket that appears in a
+       position where a quantifier is not allowed, or one that does not  match
+       the  syntax of a quantifier, is taken as a literal character. For exam-
+       ple, {,6} is not a quantifier, but a literal string of four characters.
+
+       In UTF modes, quantifiers apply to characters rather than to individual
+       data  units. Thus, for example, \x{100}{2} matches two characters, each
+       of which is represented by a two-byte sequence in a UTF-8 string. Simi-
+       larly,  \X{3}  matches  three Unicode extended sequences, each of which
+       may be several data units long (and they may be of different lengths).
+
+       The quantifier {0} is permitted, causing the expression to behave as if
+       the previous item and the quantifier were not present. This may be use-
+       ful for subpatterns that are referenced as subroutines  from  elsewhere
+       in the pattern (but see also the section entitled "Defining subpatterns
+       for use by reference only" below). Items other  than  subpatterns  that
+       have a {0} quantifier are omitted from the compiled pattern.
+
+       For  convenience, the three most common quantifiers have single-charac-
+       ter abbreviations:
+
+         *    is equivalent to {0,}
+         +    is equivalent to {1,}
+         ?    is equivalent to {0,1}
+
+       It is possible to construct infinite loops by  following  a  subpattern
+       that can match no characters with a quantifier that has no upper limit,
+       for example:
+
+         (a?)*
+
+       Earlier versions of Perl and PCRE used to give an error at compile time
+       for  such  patterns. However, because there are cases where this can be
+       useful, such patterns are now accepted, but if any  repetition  of  the
+       subpattern  does in fact match no characters, the loop is forcibly bro-
+       ken.
+
+       By default, the quantifiers are "greedy", that is, they match  as  much
+       as  possible  (up  to  the  maximum number of permitted times), without
+       causing the rest of the pattern to fail. The classic example  of  where
+       this gives problems is in trying to match comments in C programs. These
+       appear between /* and */ and within the comment,  individual  *  and  /
+       characters  may  appear. An attempt to match C comments by applying the
+       pattern
+
+         /\*.*\*/
+
+       to the string
+
+         /* first comment */  not comment  /* second comment */
+
+       fails, because it matches the entire string owing to the greediness  of
+       the .*  item.
+
+       However,  if  a quantifier is followed by a question mark, it ceases to
+       be greedy, and instead matches the minimum number of times possible, so
+       the pattern
+
+         /\*.*?\*/
+
+       does  the  right  thing with the C comments. The meaning of the various
+       quantifiers is not otherwise changed,  just  the  preferred  number  of
+       matches.   Do  not  confuse this use of question mark with its use as a
+       quantifier in its own right. Because it has two uses, it can  sometimes
+       appear doubled, as in
+
+         \d??\d
+
+       which matches one digit by preference, but can match two if that is the
+       only way the rest of the pattern matches.
+
+       If the PCRE_UNGREEDY option is set (an option that is not available  in
+       Perl),  the  quantifiers are not greedy by default, but individual ones
+       can be made greedy by following them with a  question  mark.  In  other
+       words, it inverts the default behaviour.
+
+       When  a  parenthesized  subpattern  is quantified with a minimum repeat
+       count that is greater than 1 or with a limited maximum, more memory  is
+       required  for  the  compiled  pattern, in proportion to the size of the
+       minimum or maximum.
+
+       If a pattern starts with .* or .{0,} and the PCRE_DOTALL option (equiv-
+       alent  to  Perl's  /s) is set, thus allowing the dot to match newlines,
+       the pattern is implicitly anchored, because whatever  follows  will  be
+       tried  against every character position in the subject string, so there
+       is no point in retrying the overall match at  any  position  after  the
+       first.  PCRE  normally treats such a pattern as though it were preceded
+       by \A.
+
+       In cases where it is known that the subject  string  contains  no  new-
+       lines,  it  is  worth setting PCRE_DOTALL in order to obtain this opti-
+       mization, or alternatively using ^ to indicate anchoring explicitly.
+
+       However, there is one situation where the optimization cannot be  used.
+       When .*  is inside capturing parentheses that are the subject of a back
+       reference elsewhere in the pattern, a match at the start may fail where
+       a later one succeeds. Consider, for example:
+
+         (.*)abc\1
+
+       If  the subject is "xyz123abc123" the match point is the fourth charac-
+       ter. For this reason, such a pattern is not implicitly anchored.
+
+       When a capturing subpattern is repeated, the value captured is the sub-
+       string that matched the final iteration. For example, after
+
+         (tweedle[dume]{3}\s*)+
+
+       has matched "tweedledum tweedledee" the value of the captured substring
+       is "tweedledee". However, if there are  nested  capturing  subpatterns,
+       the  corresponding captured values may have been set in previous itera-
+       tions. For example, after
+
+         /(a|(b))+/
+
+       matches "aba" the value of the second captured substring is "b".
+
+
+ATOMIC GROUPING AND POSSESSIVE QUANTIFIERS
+
+       With both maximizing ("greedy") and minimizing ("ungreedy"  or  "lazy")
+       repetition,  failure  of what follows normally causes the repeated item
+       to be re-evaluated to see if a different number of repeats  allows  the
+       rest  of  the pattern to match. Sometimes it is useful to prevent this,
+       either to change the nature of the match, or to cause it  fail  earlier
+       than  it otherwise might, when the author of the pattern knows there is
+       no point in carrying on.
+
+       Consider, for example, the pattern \d+foo when applied to  the  subject
+       line
+
+         123456bar
+
+       After matching all 6 digits and then failing to match "foo", the normal
+       action of the matcher is to try again with only 5 digits  matching  the
+       \d+  item,  and  then  with  4,  and  so on, before ultimately failing.
+       "Atomic grouping" (a term taken from Jeffrey  Friedl's  book)  provides
+       the  means for specifying that once a subpattern has matched, it is not
+       to be re-evaluated in this way.
+
+       If we use atomic grouping for the previous example, the  matcher  gives
+       up  immediately  on failing to match "foo" the first time. The notation
+       is a kind of special parenthesis, starting with (?> as in this example:
+
+         (?>\d+)foo
+
+       This kind of parenthesis "locks up" the  part of the  pattern  it  con-
+       tains  once  it  has matched, and a failure further into the pattern is
+       prevented from backtracking into it. Backtracking past it  to  previous
+       items, however, works as normal.
+
+       An  alternative  description  is that a subpattern of this type matches
+       the string of characters that an  identical  standalone  pattern  would
+       match, if anchored at the current point in the subject string.
+
+       Atomic grouping subpatterns are not capturing subpatterns. Simple cases
+       such as the above example can be thought of as a maximizing repeat that
+       must  swallow  everything  it can. So, while both \d+ and \d+? are pre-
+       pared to adjust the number of digits they match in order  to  make  the
+       rest of the pattern match, (?>\d+) can only match an entire sequence of
+       digits.
+
+       Atomic groups in general can of course contain arbitrarily  complicated
+       subpatterns,  and  can  be  nested. However, when the subpattern for an
+       atomic group is just a single repeated item, as in the example above, a
+       simpler  notation,  called  a "possessive quantifier" can be used. This
+       consists of an additional + character  following  a  quantifier.  Using
+       this notation, the previous example can be rewritten as
+
+         \d++foo
+
+       Note that a possessive quantifier can be used with an entire group, for
+       example:
+
+         (abc|xyz){2,3}+
+
+       Possessive  quantifiers  are  always  greedy;  the   setting   of   the
+       PCRE_UNGREEDY option is ignored. They are a convenient notation for the
+       simpler forms of atomic group. However, there is no difference  in  the
+       meaning  of  a  possessive  quantifier and the equivalent atomic group,
+       though there may be a performance  difference;  possessive  quantifiers
+       should be slightly faster.
+
+       The  possessive  quantifier syntax is an extension to the Perl 5.8 syn-
+       tax.  Jeffrey Friedl originated the idea (and the name)  in  the  first
+       edition of his book. Mike McCloskey liked it, so implemented it when he
+       built Sun's Java package, and PCRE copied it from there. It  ultimately
+       found its way into Perl at release 5.10.
+
+       PCRE has an optimization that automatically "possessifies" certain sim-
+       ple pattern constructs. For example, the sequence  A+B  is  treated  as
+       A++B  because  there is no point in backtracking into a sequence of A's
+       when B must follow.
+
+       When a pattern contains an unlimited repeat inside  a  subpattern  that
+       can  itself  be  repeated  an  unlimited number of times, the use of an
+       atomic group is the only way to avoid some  failing  matches  taking  a
+       very long time indeed. The pattern
+
+         (\D+|<\d+>)*[!?]
+
+       matches  an  unlimited number of substrings that either consist of non-
+       digits, or digits enclosed in <>, followed by either ! or  ?.  When  it
+       matches, it runs quickly. However, if it is applied to
+
+         aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+
+       it  takes  a  long  time  before reporting failure. This is because the
+       string can be divided between the internal \D+ repeat and the  external
+       *  repeat  in  a  large  number of ways, and all have to be tried. (The
+       example uses [!?] rather than a single character at  the  end,  because
+       both  PCRE  and  Perl have an optimization that allows for fast failure
+       when a single character is used. They remember the last single  charac-
+       ter  that  is required for a match, and fail early if it is not present
+       in the string.) If the pattern is changed so that  it  uses  an  atomic
+       group, like this:
+
+         ((?>\D+)|<\d+>)*[!?]
+
+       sequences of non-digits cannot be broken, and failure happens quickly.
+
+
+BACK REFERENCES
+
+       Outside a character class, a backslash followed by a digit greater than
+       0 (and possibly further digits) is a back reference to a capturing sub-
+       pattern  earlier  (that is, to its left) in the pattern, provided there
+       have been that many previous capturing left parentheses.
+
+       However, if the decimal number following the backslash is less than 10,
+       it  is  always  taken  as a back reference, and causes an error only if
+       there are not that many capturing left parentheses in the  entire  pat-
+       tern.  In  other words, the parentheses that are referenced need not be
+       to the left of the reference for numbers less than 10. A "forward  back
+       reference"  of  this  type can make sense when a repetition is involved
+       and the subpattern to the right has participated in an  earlier  itera-
+       tion.
+
+       It  is  not  possible to have a numerical "forward back reference" to a
+       subpattern whose number is 10 or  more  using  this  syntax  because  a
+       sequence  such  as  \50 is interpreted as a character defined in octal.
+       See the subsection entitled "Non-printing characters" above for further
+       details  of  the  handling of digits following a backslash. There is no
+       such problem when named parentheses are used. A back reference  to  any
+       subpattern is possible using named parentheses (see below).
+
+       Another  way  of  avoiding  the ambiguity inherent in the use of digits
+       following a backslash is to use the \g  escape  sequence.  This  escape
+       must be followed by an unsigned number or a negative number, optionally
+       enclosed in braces. These examples are all identical:
+
+         (ring), \1
+         (ring), \g1
+         (ring), \g{1}
+
+       An unsigned number specifies an absolute reference without the  ambigu-
+       ity that is present in the older syntax. It is also useful when literal
+       digits follow the reference. A negative number is a relative reference.
+       Consider this example:
+
+         (abc(def)ghi)\g{-1}
+
+       The sequence \g{-1} is a reference to the most recently started captur-
+       ing subpattern before \g, that is, is it equivalent to \2 in this exam-
+       ple.   Similarly, \g{-2} would be equivalent to \1. The use of relative
+       references can be helpful in long patterns, and also in  patterns  that
+       are  created  by  joining  together  fragments  that contain references
+       within themselves.
+
+       A back reference matches whatever actually matched the  capturing  sub-
+       pattern  in  the  current subject string, rather than anything matching
+       the subpattern itself (see "Subpatterns as subroutines" below for a way
+       of doing that). So the pattern
+
+         (sens|respons)e and \1ibility
+
+       matches  "sense and sensibility" and "response and responsibility", but
+       not "sense and responsibility". If caseful matching is in force at  the
+       time  of the back reference, the case of letters is relevant. For exam-
+       ple,
+
+         ((?i)rah)\s+\1
+
+       matches "rah rah" and "RAH RAH", but not "RAH  rah",  even  though  the
+       original capturing subpattern is matched caselessly.
+
+       There  are  several  different ways of writing back references to named
+       subpatterns. The .NET syntax \k{name} and the Perl syntax  \k<name>  or
+       \k'name'  are supported, as is the Python syntax (?P=name). Perl 5.10's
+       unified back reference syntax, in which \g can be used for both numeric
+       and  named  references,  is  also supported. We could rewrite the above
+       example in any of the following ways:
+
+         (?<p1>(?i)rah)\s+\k<p1>
+         (?'p1'(?i)rah)\s+\k{p1}
+         (?P<p1>(?i)rah)\s+(?P=p1)
+         (?<p1>(?i)rah)\s+\g{p1}
+
+       A subpattern that is referenced by  name  may  appear  in  the  pattern
+       before or after the reference.
+
+       There  may be more than one back reference to the same subpattern. If a
+       subpattern has not actually been used in a particular match,  any  back
+       references to it always fail by default. For example, the pattern
+
+         (a|(bc))\2
+
+       always  fails  if  it starts to match "a" rather than "bc". However, if
+       the PCRE_JAVASCRIPT_COMPAT option is set at compile time, a back refer-
+       ence to an unset value matches an empty string.
+
+       Because  there may be many capturing parentheses in a pattern, all dig-
+       its following a backslash are taken as part of a potential back  refer-
+       ence  number.   If  the  pattern continues with a digit character, some
+       delimiter must  be  used  to  terminate  the  back  reference.  If  the
+       PCRE_EXTENDED  option  is  set, this can be white space. Otherwise, the
+       \g{ syntax or an empty comment (see "Comments" below) can be used.
+
+   Recursive back references
+
+       A back reference that occurs inside the parentheses to which it  refers
+       fails  when  the subpattern is first used, so, for example, (a\1) never
+       matches.  However, such references can be useful inside  repeated  sub-
+       patterns. For example, the pattern
+
+         (a|b\1)+
+
+       matches any number of "a"s and also "aba", "ababbaa" etc. At each iter-
+       ation of the subpattern,  the  back  reference  matches  the  character
+       string  corresponding  to  the previous iteration. In order for this to
+       work, the pattern must be such that the first iteration does  not  need
+       to  match the back reference. This can be done using alternation, as in
+       the example above, or by a quantifier with a minimum of zero.
+
+       Back references of this type cause the group that they reference to  be
+       treated  as  an atomic group.  Once the whole group has been matched, a
+       subsequent matching failure cannot cause backtracking into  the  middle
+       of the group.
+
+
+ASSERTIONS
+
+       An  assertion  is  a  test on the characters following or preceding the
+       current matching point that does not actually consume  any  characters.
+       The  simple  assertions  coded  as  \b, \B, \A, \G, \Z, \z, ^ and $ are
+       described above.
+
+       More complicated assertions are coded as  subpatterns.  There  are  two
+       kinds:  those  that  look  ahead of the current position in the subject
+       string, and those that look  behind  it.  An  assertion  subpattern  is
+       matched  in  the  normal way, except that it does not cause the current
+       matching position to be changed.
+
+       Assertion subpatterns are not capturing subpatterns. If such an  asser-
+       tion  contains  capturing  subpatterns within it, these are counted for
+       the purposes of numbering the capturing subpatterns in the  whole  pat-
+       tern.  However,  substring  capturing  is carried out only for positive
+       assertions, because it does not make sense for negative assertions.
+
+       For compatibility with Perl, assertion  subpatterns  may  be  repeated;
+       though  it  makes  no sense to assert the same thing several times, the
+       side effect of capturing parentheses may  occasionally  be  useful.  In
+       practice, there only three cases:
+
+       (1)  If  the  quantifier  is  {0}, the assertion is never obeyed during
+       matching.  However, it may  contain  internal  capturing  parenthesized
+       groups that are called from elsewhere via the subroutine mechanism.
+
+       (2)  If quantifier is {0,n} where n is greater than zero, it is treated
+       as if it were {0,1}. At run time, the rest  of  the  pattern  match  is
+       tried with and without the assertion, the order depending on the greed-
+       iness of the quantifier.
+
+       (3) If the minimum repetition is greater than zero, the  quantifier  is
+       ignored.   The  assertion  is  obeyed just once when encountered during
+       matching.
+
+   Lookahead assertions
+
+       Lookahead assertions start with (?= for positive assertions and (?! for
+       negative assertions. For example,
+
+         \w+(?=;)
+
+       matches  a word followed by a semicolon, but does not include the semi-
+       colon in the match, and
+
+         foo(?!bar)
+
+       matches any occurrence of "foo" that is not  followed  by  "bar".  Note
+       that the apparently similar pattern
+
+         (?!foo)bar
+
+       does  not  find  an  occurrence  of "bar" that is preceded by something
+       other than "foo"; it finds any occurrence of "bar" whatsoever,  because
+       the assertion (?!foo) is always true when the next three characters are
+       "bar". A lookbehind assertion is needed to achieve the other effect.
+
+       If you want to force a matching failure at some point in a pattern, the
+       most  convenient  way  to  do  it  is with (?!) because an empty string
+       always matches, so an assertion that requires there not to be an  empty
+       string must always fail.  The backtracking control verb (*FAIL) or (*F)
+       is a synonym for (?!).
+
+   Lookbehind assertions
+
+       Lookbehind assertions start with (?<= for positive assertions and  (?<!
+       for negative assertions. For example,
+
+         (?<!foo)bar
+
+       does  find  an  occurrence  of "bar" that is not preceded by "foo". The
+       contents of a lookbehind assertion are restricted  such  that  all  the
+       strings it matches must have a fixed length. However, if there are sev-
+       eral top-level alternatives, they do not all  have  to  have  the  same
+       fixed length. Thus
+
+         (?<=bullock|donkey)
+
+       is permitted, but
+
+         (?<!dogs?|cats?)
+
+       causes  an  error at compile time. Branches that match different length
+       strings are permitted only at the top level of a lookbehind  assertion.
+       This is an extension compared with Perl, which requires all branches to
+       match the same length of string. An assertion such as
+
+         (?<=ab(c|de))
+
+       is not permitted, because its single top-level  branch  can  match  two
+       different lengths, but it is acceptable to PCRE if rewritten to use two
+       top-level branches:
+
+         (?<=abc|abde)
+
+       In some cases, the escape sequence \K (see above) can be  used  instead
+       of a lookbehind assertion to get round the fixed-length restriction.
+
+       The  implementation  of lookbehind assertions is, for each alternative,
+       to temporarily move the current position back by the fixed  length  and
+       then try to match. If there are insufficient characters before the cur-
+       rent position, the assertion fails.
+
+       In a UTF mode, PCRE does not allow the \C escape (which matches a  sin-
+       gle  data  unit even in a UTF mode) to appear in lookbehind assertions,
+       because it makes it impossible to calculate the length of  the  lookbe-
+       hind.  The \X and \R escapes, which can match different numbers of data
+       units, are also not permitted.
+
+       "Subroutine" calls (see below) such as (?2) or (?&X) are  permitted  in
+       lookbehinds,  as  long as the subpattern matches a fixed-length string.
+       Recursion, however, is not supported.
+
+       Possessive quantifiers can  be  used  in  conjunction  with  lookbehind
+       assertions to specify efficient matching of fixed-length strings at the
+       end of subject strings. Consider a simple pattern such as
+
+         abcd$
+
+       when applied to a long string that does  not  match.  Because  matching
+       proceeds from left to right, PCRE will look for each "a" in the subject
+       and then see if what follows matches the rest of the  pattern.  If  the
+       pattern is specified as
+
+         ^.*abcd$
+
+       the  initial .* matches the entire string at first, but when this fails
+       (because there is no following "a"), it backtracks to match all but the
+       last  character,  then all but the last two characters, and so on. Once
+       again the search for "a" covers the entire string, from right to  left,
+       so we are no better off. However, if the pattern is written as
+
+         ^.*+(?<=abcd)
+
+       there  can  be  no backtracking for the .*+ item; it can match only the
+       entire string. The subsequent lookbehind assertion does a  single  test
+       on  the last four characters. If it fails, the match fails immediately.
+       For long strings, this approach makes a significant difference  to  the
+       processing time.
+
+   Using multiple assertions
+
+       Several assertions (of any sort) may occur in succession. For example,
+
+         (?<=\d{3})(?<!999)foo
+
+       matches  "foo" preceded by three digits that are not "999". Notice that
+       each of the assertions is applied independently at the  same  point  in
+       the  subject  string.  First  there  is a check that the previous three
+       characters are all digits, and then there is  a  check  that  the  same
+       three characters are not "999".  This pattern does not match "foo" pre-
+       ceded by six characters, the first of which are  digits  and  the  last
+       three  of  which  are not "999". For example, it doesn't match "123abc-
+       foo". A pattern to do that is
+
+         (?<=\d{3}...)(?<!999)foo
+
+       This time the first assertion looks at the  preceding  six  characters,
+       checking that the first three are digits, and then the second assertion
+       checks that the preceding three characters are not "999".
+
+       Assertions can be nested in any combination. For example,
+
+         (?<=(?<!foo)bar)baz
+
+       matches an occurrence of "baz" that is preceded by "bar" which in  turn
+       is not preceded by "foo", while
+
+         (?<=\d{3}(?!999)...)foo
+
+       is  another pattern that matches "foo" preceded by three digits and any
+       three characters that are not "999".
+
+
+CONDITIONAL SUBPATTERNS
+
+       It is possible to cause the matching process to obey a subpattern  con-
+       ditionally  or to choose between two alternative subpatterns, depending
+       on the result of an assertion, or whether a specific capturing  subpat-
+       tern  has  already  been matched. The two possible forms of conditional
+       subpattern are:
+
+         (?(condition)yes-pattern)
+         (?(condition)yes-pattern|no-pattern)
+
+       If the condition is satisfied, the yes-pattern is used;  otherwise  the
+       no-pattern  (if  present)  is used. If there are more than two alterna-
+       tives in the subpattern, a compile-time error occurs. Each of  the  two
+       alternatives may itself contain nested subpatterns of any form, includ-
+       ing  conditional  subpatterns;  the  restriction  to  two  alternatives
+       applies only at the level of the condition. This pattern fragment is an
+       example where the alternatives are complex:
+
+         (?(1) (A|B|C) | (D | (?(2)E|F) | E) )
+
+
+       There are four kinds of condition: references  to  subpatterns,  refer-
+       ences to recursion, a pseudo-condition called DEFINE, and assertions.
+
+   Checking for a used subpattern by number
+
+       If  the  text between the parentheses consists of a sequence of digits,
+       the condition is true if a capturing subpattern of that number has pre-
+       viously  matched.  If  there is more than one capturing subpattern with
+       the same number (see the earlier  section  about  duplicate  subpattern
+       numbers),  the condition is true if any of them have matched. An alter-
+       native notation is to precede the digits with a plus or minus sign.  In
+       this  case, the subpattern number is relative rather than absolute. The
+       most recently opened parentheses can be referenced by (?(-1), the  next
+       most  recent  by (?(-2), and so on. Inside loops it can also make sense
+       to refer to subsequent groups. The next parentheses to be opened can be
+       referenced  as (?(+1), and so on. (The value zero in any of these forms
+       is not used; it provokes a compile-time error.)
+
+       Consider the following pattern, which  contains  non-significant  white
+       space to make it more readable (assume the PCRE_EXTENDED option) and to
+       divide it into three parts for ease of discussion:
+
+         ( \( )?    [^()]+    (?(1) \) )
+
+       The first part matches an optional opening  parenthesis,  and  if  that
+       character is present, sets it as the first captured substring. The sec-
+       ond part matches one or more characters that are not  parentheses.  The
+       third  part  is  a conditional subpattern that tests whether or not the
+       first set of parentheses matched. If they  did,  that  is,  if  subject
+       started  with an opening parenthesis, the condition is true, and so the
+       yes-pattern is executed and a closing parenthesis is  required.  Other-
+       wise,  since no-pattern is not present, the subpattern matches nothing.
+       In other words, this pattern matches  a  sequence  of  non-parentheses,
+       optionally enclosed in parentheses.
+
+       If  you  were  embedding  this pattern in a larger one, you could use a
+       relative reference:
+
+         ...other stuff... ( \( )?    [^()]+    (?(-1) \) ) ...
+
+       This makes the fragment independent of the parentheses  in  the  larger
+       pattern.
+
+   Checking for a used subpattern by name
+
+       Perl  uses  the  syntax  (?(<name>)...) or (?('name')...) to test for a
+       used subpattern by name. For compatibility  with  earlier  versions  of
+       PCRE,  which  had this facility before Perl, the syntax (?(name)...) is
+       also recognized. However, there is a possible ambiguity with this  syn-
+       tax,  because  subpattern  names  may  consist entirely of digits. PCRE
+       looks first for a named subpattern; if it cannot find one and the  name
+       consists  entirely  of digits, PCRE looks for a subpattern of that num-
+       ber, which must be greater than zero. Using subpattern names that  con-
+       sist entirely of digits is not recommended.
+
+       Rewriting the above example to use a named subpattern gives this:
+
+         (?<OPEN> \( )?    [^()]+    (?(<OPEN>) \) )
+
+       If  the  name used in a condition of this kind is a duplicate, the test
+       is applied to all subpatterns of the same name, and is true if any  one
+       of them has matched.
+
+   Checking for pattern recursion
+
+       If the condition is the string (R), and there is no subpattern with the
+       name R, the condition is true if a recursive call to the whole  pattern
+       or any subpattern has been made. If digits or a name preceded by amper-
+       sand follow the letter R, for example:
+
+         (?(R3)...) or (?(R&name)...)
+
+       the condition is true if the most recent recursion is into a subpattern
+       whose number or name is given. This condition does not check the entire
+       recursion stack. If the name used in a condition  of  this  kind  is  a
+       duplicate, the test is applied to all subpatterns of the same name, and
+       is true if any one of them is the most recent recursion.
+
+       At "top level", all these recursion test  conditions  are  false.   The
+       syntax for recursive patterns is described below.
+
+   Defining subpatterns for use by reference only
+
+       If  the  condition  is  the string (DEFINE), and there is no subpattern
+       with the name DEFINE, the condition is  always  false.  In  this  case,
+       there  may  be  only  one  alternative  in the subpattern. It is always
+       skipped if control reaches this point  in  the  pattern;  the  idea  of
+       DEFINE  is that it can be used to define subroutines that can be refer-
+       enced from elsewhere. (The use of subroutines is described below.)  For
+       example,  a  pattern  to match an IPv4 address such as "192.168.23.245"
+       could be written like this (ignore white space and line breaks):
+
+         (?(DEFINE) (?<byte> 2[0-4]\d | 25[0-5] | 1\d\d | [1-9]?\d) )
+         \b (?&byte) (\.(?&byte)){3} \b
+
+       The first part of the pattern is a DEFINE group inside which a  another
+       group  named "byte" is defined. This matches an individual component of
+       an IPv4 address (a number less than 256). When  matching  takes  place,
+       this  part  of  the pattern is skipped because DEFINE acts like a false
+       condition. The rest of the pattern uses references to the  named  group
+       to  match the four dot-separated components of an IPv4 address, insist-
+       ing on a word boundary at each end.
+
+   Assertion conditions
+
+       If the condition is not in any of the above  formats,  it  must  be  an
+       assertion.   This may be a positive or negative lookahead or lookbehind
+       assertion. Consider  this  pattern,  again  containing  non-significant
+       white space, and with the two alternatives on the second line:
+
+         (?(?=[^a-z]*[a-z])
+         \d{2}-[a-z]{3}-\d{2}  |  \d{2}-\d{2}-\d{2} )
+
+       The  condition  is  a  positive  lookahead  assertion  that  matches an
+       optional sequence of non-letters followed by a letter. In other  words,
+       it  tests  for the presence of at least one letter in the subject. If a
+       letter is found, the subject is matched against the first  alternative;
+       otherwise  it  is  matched  against  the  second.  This pattern matches
+       strings in one of the two forms dd-aaa-dd or dd-dd-dd,  where  aaa  are
+       letters and dd are digits.
+
+
+COMMENTS
+
+       There are two ways of including comments in patterns that are processed
+       by PCRE. In both cases, the start of the comment must not be in a char-
+       acter class, nor in the middle of any other sequence of related charac-
+       ters such as (?: or a subpattern name or number.  The  characters  that
+       make up a comment play no part in the pattern matching.
+
+       The  sequence (?# marks the start of a comment that continues up to the
+       next closing parenthesis. Nested parentheses are not permitted. If  the
+       PCRE_EXTENDED option is set, an unescaped # character also introduces a
+       comment, which in this case continues to  immediately  after  the  next
+       newline  character  or character sequence in the pattern. Which charac-
+       ters are interpreted as newlines is controlled by the options passed to
+       a  compiling function or by a special sequence at the start of the pat-
+       tern, as described in the section entitled "Newline conventions" above.
+       Note that the end of this type of comment is a literal newline sequence
+       in the pattern; escape sequences that happen to represent a newline  do
+       not  count.  For  example,  consider this pattern when PCRE_EXTENDED is
+       set, and the default newline convention is in force:
+
+         abc #comment \n still comment
+
+       On encountering the # character, pcre_compile()  skips  along,  looking
+       for  a newline in the pattern. The sequence \n is still literal at this
+       stage, so it does not terminate the comment. Only an  actual  character
+       with the code value 0x0a (the default newline) does so.
+
+
+RECURSIVE PATTERNS
+
+       Consider  the problem of matching a string in parentheses, allowing for
+       unlimited nested parentheses. Without the use of  recursion,  the  best
+       that  can  be  done  is  to use a pattern that matches up to some fixed
+       depth of nesting. It is not possible to  handle  an  arbitrary  nesting
+       depth.
+
+       For some time, Perl has provided a facility that allows regular expres-
+       sions to recurse (amongst other things). It does this by  interpolating
+       Perl  code in the expression at run time, and the code can refer to the
+       expression itself. A Perl pattern using code interpolation to solve the
+       parentheses problem can be created like this:
+
+         $re = qr{\( (?: (?>[^()]+) | (?p{$re}) )* \)}x;
+
+       The (?p{...}) item interpolates Perl code at run time, and in this case
+       refers recursively to the pattern in which it appears.
+
+       Obviously, PCRE cannot support the interpolation of Perl code. Instead,
+       it  supports  special  syntax  for recursion of the entire pattern, and
+       also for individual subpattern recursion.  After  its  introduction  in
+       PCRE  and  Python,  this  kind of recursion was subsequently introduced
+       into Perl at release 5.10.
+
+       A special item that consists of (? followed by a  number  greater  than
+       zero  and  a  closing parenthesis is a recursive subroutine call of the
+       subpattern of the given number, provided that  it  occurs  inside  that
+       subpattern.  (If  not,  it is a non-recursive subroutine call, which is
+       described in the next section.) The special item  (?R)  or  (?0)  is  a
+       recursive call of the entire regular expression.
+
+       This  PCRE  pattern  solves  the nested parentheses problem (assume the
+       PCRE_EXTENDED option is set so that white space is ignored):
+
+         \( ( [^()]++ | (?R) )* \)
+
+       First it matches an opening parenthesis. Then it matches any number  of
+       substrings  which  can  either  be  a sequence of non-parentheses, or a
+       recursive match of the pattern itself (that is, a  correctly  parenthe-
+       sized substring).  Finally there is a closing parenthesis. Note the use
+       of a possessive quantifier to avoid backtracking into sequences of non-
+       parentheses.
+
+       If  this  were  part of a larger pattern, you would not want to recurse
+       the entire pattern, so instead you could use this:
+
+         ( \( ( [^()]++ | (?1) )* \) )
+
+       We have put the pattern into parentheses, and caused the  recursion  to
+       refer to them instead of the whole pattern.
+
+       In  a  larger  pattern,  keeping  track  of  parenthesis numbers can be
+       tricky. This is made easier by the use of relative references.  Instead
+       of (?1) in the pattern above you can write (?-2) to refer to the second
+       most recently opened parentheses  preceding  the  recursion.  In  other
+       words,  a  negative  number counts capturing parentheses leftwards from
+       the point at which it is encountered.
+
+       It is also possible to refer to  subsequently  opened  parentheses,  by
+       writing  references  such  as (?+2). However, these cannot be recursive
+       because the reference is not inside the  parentheses  that  are  refer-
+       enced.  They are always non-recursive subroutine calls, as described in
+       the next section.
+
+       An alternative approach is to use named parentheses instead.  The  Perl
+       syntax  for  this  is (?&name); PCRE's earlier syntax (?P>name) is also
+       supported. We could rewrite the above example as follows:
+
+         (?<pn> \( ( [^()]++ | (?&pn) )* \) )
+
+       If there is more than one subpattern with the same name,  the  earliest
+       one is used.
+
+       This  particular  example pattern that we have been looking at contains
+       nested unlimited repeats, and so the use of a possessive quantifier for
+       matching strings of non-parentheses is important when applying the pat-
+       tern to strings that do not match. For example, when  this  pattern  is
+       applied to
+
+         (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()
+
+       it  yields  "no  match" quickly. However, if a possessive quantifier is
+       not used, the match runs for a very long time indeed because there  are
+       so  many  different  ways the + and * repeats can carve up the subject,
+       and all have to be tested before failure can be reported.
+
+       At the end of a match, the values of capturing  parentheses  are  those
+       from  the outermost level. If you want to obtain intermediate values, a
+       callout function can be used (see below and the pcrecallout  documenta-
+       tion). If the pattern above is matched against
+
+         (ab(cd)ef)
+
+       the  value  for  the  inner capturing parentheses (numbered 2) is "ef",
+       which is the last value taken on at the top level. If a capturing  sub-
+       pattern  is  not  matched at the top level, its final captured value is
+       unset, even if it was (temporarily) set at a deeper  level  during  the
+       matching process.
+
+       If  there are more than 15 capturing parentheses in a pattern, PCRE has
+       to obtain extra memory to store data during a recursion, which it  does
+       by using pcre_malloc, freeing it via pcre_free afterwards. If no memory
+       can be obtained, the match fails with the PCRE_ERROR_NOMEMORY error.
+
+       Do not confuse the (?R) item with the condition (R),  which  tests  for
+       recursion.   Consider  this pattern, which matches text in angle brack-
+       ets, allowing for arbitrary nesting. Only digits are allowed in  nested
+       brackets  (that is, when recursing), whereas any characters are permit-
+       ted at the outer level.
+
+         < (?: (?(R) \d++  | [^<>]*+) | (?R)) * >
+
+       In this pattern, (?(R) is the start of a conditional  subpattern,  with
+       two  different  alternatives for the recursive and non-recursive cases.
+       The (?R) item is the actual recursive call.
+
+   Differences in recursion processing between PCRE and Perl
+
+       Recursion processing in PCRE differs from Perl in two  important  ways.
+       In  PCRE (like Python, but unlike Perl), a recursive subpattern call is
+       always treated as an atomic group. That is, once it has matched some of
+       the subject string, it is never re-entered, even if it contains untried
+       alternatives and there is a subsequent matching failure.  This  can  be
+       illustrated  by the following pattern, which purports to match a palin-
+       dromic string that contains an odd number of characters  (for  example,
+       "a", "aba", "abcba", "abcdcba"):
+
+         ^(.|(.)(?1)\2)$
+
+       The idea is that it either matches a single character, or two identical
+       characters surrounding a sub-palindrome. In Perl, this  pattern  works;
+       in  PCRE  it  does  not if the pattern is longer than three characters.
+       Consider the subject string "abcba":
+
+       At the top level, the first character is matched, but as it is  not  at
+       the end of the string, the first alternative fails; the second alterna-
+       tive is taken and the recursion kicks in. The recursive call to subpat-
+       tern  1  successfully  matches the next character ("b"). (Note that the
+       beginning and end of line tests are not part of the recursion).
+
+       Back at the top level, the next character ("c") is compared  with  what
+       subpattern  2 matched, which was "a". This fails. Because the recursion
+       is treated as an atomic group, there are now  no  backtracking  points,
+       and  so  the  entire  match fails. (Perl is able, at this point, to re-
+       enter the recursion and try the second alternative.)  However,  if  the
+       pattern is written with the alternatives in the other order, things are
+       different:
+
+         ^((.)(?1)\2|.)$
+
+       This time, the recursing alternative is tried first, and  continues  to
+       recurse  until  it runs out of characters, at which point the recursion
+       fails. But this time we do have  another  alternative  to  try  at  the
+       higher  level.  That  is  the  big difference: in the previous case the
+       remaining alternative is at a deeper recursion level, which PCRE cannot
+       use.
+
+       To  change  the pattern so that it matches all palindromic strings, not
+       just those with an odd number of characters, it is tempting  to  change
+       the pattern to this:
+
+         ^((.)(?1)\2|.?)$
+
+       Again,  this  works  in Perl, but not in PCRE, and for the same reason.
+       When a deeper recursion has matched a single character,  it  cannot  be
+       entered  again  in  order  to match an empty string. The solution is to
+       separate the two cases, and write out the odd and even cases as  alter-
+       natives at the higher level:
+
+         ^(?:((.)(?1)\2|)|((.)(?3)\4|.))
+
+       If  you  want  to match typical palindromic phrases, the pattern has to
+       ignore all non-word characters, which can be done like this:
+
+         ^\W*+(?:((.)\W*+(?1)\W*+\2|)|((.)\W*+(?3)\W*+\4|\W*+.\W*+))\W*+$
+
+       If run with the PCRE_CASELESS option, this pattern matches phrases such
+       as "A man, a plan, a canal: Panama!" and it works well in both PCRE and
+       Perl. Note the use of the possessive quantifier *+ to avoid  backtrack-
+       ing  into  sequences of non-word characters. Without this, PCRE takes a
+       great deal longer (ten times or more) to  match  typical  phrases,  and
+       Perl takes so long that you think it has gone into a loop.
+
+       WARNING:  The  palindrome-matching patterns above work only if the sub-
+       ject string does not start with a palindrome that is shorter  than  the
+       entire  string.  For example, although "abcba" is correctly matched, if
+       the subject is "ababa", PCRE finds the palindrome "aba" at  the  start,
+       then  fails at top level because the end of the string does not follow.
+       Once again, it cannot jump back into the recursion to try other  alter-
+       natives, so the entire match fails.
+
+       The  second  way  in which PCRE and Perl differ in their recursion pro-
+       cessing is in the handling of captured values. In Perl, when a  subpat-
+       tern  is  called recursively or as a subpattern (see the next section),
+       it has no access to any values that were captured  outside  the  recur-
+       sion,  whereas  in  PCRE  these values can be referenced. Consider this
+       pattern:
+
+         ^(.)(\1|a(?2))
+
+       In PCRE, this pattern matches "bab". The  first  capturing  parentheses
+       match  "b",  then in the second group, when the back reference \1 fails
+       to match "b", the second alternative matches "a" and then recurses.  In
+       the  recursion,  \1 does now match "b" and so the whole match succeeds.
+       In Perl, the pattern fails to match because inside the  recursive  call
+       \1 cannot access the externally set value.
+
+
+SUBPATTERNS AS SUBROUTINES
+
+       If  the  syntax for a recursive subpattern call (either by number or by
+       name) is used outside the parentheses to which it refers,  it  operates
+       like  a subroutine in a programming language. The called subpattern may
+       be defined before or after the reference. A numbered reference  can  be
+       absolute or relative, as in these examples:
+
+         (...(absolute)...)...(?2)...
+         (...(relative)...)...(?-1)...
+         (...(?+1)...(relative)...
+
+       An earlier example pointed out that the pattern
+
+         (sens|respons)e and \1ibility
+
+       matches  "sense and sensibility" and "response and responsibility", but
+       not "sense and responsibility". If instead the pattern
+
+         (sens|respons)e and (?1)ibility
+
+       is used, it does match "sense and responsibility" as well as the  other
+       two  strings.  Another  example  is  given  in the discussion of DEFINE
+       above.
+
+       All subroutine calls, whether recursive or not, are always  treated  as
+       atomic  groups. That is, once a subroutine has matched some of the sub-
+       ject string, it is never re-entered, even if it contains untried alter-
+       natives  and  there  is  a  subsequent  matching failure. Any capturing
+       parentheses that are set during the subroutine  call  revert  to  their
+       previous values afterwards.
+
+       Processing  options  such as case-independence are fixed when a subpat-
+       tern is defined, so if it is used as a subroutine, such options  cannot
+       be changed for different calls. For example, consider this pattern:
+
+         (abc)(?i:(?-1))
+
+       It  matches  "abcabc". It does not match "abcABC" because the change of
+       processing option does not affect the called subpattern.
+
+
+ONIGURUMA SUBROUTINE SYNTAX
+
+       For compatibility with Oniguruma, the non-Perl syntax \g followed by  a
+       name or a number enclosed either in angle brackets or single quotes, is
+       an alternative syntax for referencing a  subpattern  as  a  subroutine,
+       possibly  recursively. Here are two of the examples used above, rewrit-
+       ten using this syntax:
+
+         (?<pn> \( ( (?>[^()]+) | \g<pn> )* \) )
+         (sens|respons)e and \g'1'ibility
+
+       PCRE supports an extension to Oniguruma: if a number is preceded  by  a
+       plus or a minus sign it is taken as a relative reference. For example:
+
+         (abc)(?i:\g<-1>)
+
+       Note  that \g{...} (Perl syntax) and \g<...> (Oniguruma syntax) are not
+       synonymous. The former is a back reference; the latter is a  subroutine
+       call.
+
+
+CALLOUTS
+
+       Perl has a feature whereby using the sequence (?{...}) causes arbitrary
+       Perl code to be obeyed in the middle of matching a regular  expression.
+       This makes it possible, amongst other things, to extract different sub-
+       strings that match the same pair of parentheses when there is a repeti-
+       tion.
+
+       PCRE provides a similar feature, but of course it cannot obey arbitrary
+       Perl code. The feature is called "callout". The caller of PCRE provides
+       an  external function by putting its entry point in the global variable
+       pcre_callout (8-bit library) or  pcre16_callout  (16-bit  library).  By
+       default, this variable contains NULL, which disables all calling out.
+
+       Within  a  regular  expression,  (?C) indicates the points at which the
+       external function is to be called. If you want  to  identify  different
+       callout  points, you can put a number less than 256 after the letter C.
+       The default value is zero.  For example, this pattern has  two  callout
+       points:
+
+         (?C1)abc(?C2)def
+
+       If  the PCRE_AUTO_CALLOUT flag is passed to a compiling function, call-
+       outs are automatically installed before each item in the pattern.  They
+       are all numbered 255.
+
+       During  matching, when PCRE reaches a callout point, the external func-
+       tion is called. It is provided with the  number  of  the  callout,  the
+       position  in  the pattern, and, optionally, one item of data originally
+       supplied by the caller of the matching function. The  callout  function
+       may  cause  matching to proceed, to backtrack, or to fail altogether. A
+       complete description of the interface to the callout function is  given
+       in the pcrecallout documentation.
+
+
+BACKTRACKING CONTROL
+
+       Perl  5.10 introduced a number of "Special Backtracking Control Verbs",
+       which are described in the Perl documentation as "experimental and sub-
+       ject  to  change or removal in a future version of Perl". It goes on to
+       say: "Their usage in production code should be noted to avoid  problems
+       during upgrades." The same remarks apply to the PCRE features described
+       in this section.
+
+       Since these verbs are specifically related  to  backtracking,  most  of
+       them  can  be  used only when the pattern is to be matched using one of
+       the traditional matching functions, which use a backtracking algorithm.
+       With  the  exception  of (*FAIL), which behaves like a failing negative
+       assertion, they cause an error if encountered by a DFA  matching  func-
+       tion.
+
+       If  any of these verbs are used in an assertion or in a subpattern that
+       is called as a subroutine (whether or not recursively), their effect is
+       confined to that subpattern; it does not extend to the surrounding pat-
+       tern, with one exception: the name from a *(MARK), (*PRUNE), or (*THEN)
+       that  is  encountered in a successful positive assertion is passed back
+       when a match succeeds (compare capturing  parentheses  in  assertions).
+       Note that such subpatterns are processed as anchored at the point where
+       they are tested. Note also that Perl's  treatment  of  subroutines  and
+       assertions is different in some cases.
+
+       The  new verbs make use of what was previously invalid syntax: an open-
+       ing parenthesis followed by an asterisk. They are generally of the form
+       (*VERB)  or (*VERB:NAME). Some may take either form, with differing be-
+       haviour, depending on whether or not an argument is present. A name  is
+       any sequence of characters that does not include a closing parenthesis.
+       The maximum length of name is 255 in the 8-bit library and 65535 in the
+       16-bit library. If the name is empty, that is, if the closing parenthe-
+       sis immediately follows the colon, the effect is as if the  colon  were
+       not there. Any number of these verbs may occur in a pattern.
+
+   Optimizations that affect backtracking verbs
+
+       PCRE  contains some optimizations that are used to speed up matching by
+       running some checks at the start of each match attempt. For example, it
+       may  know  the minimum length of matching subject, or that a particular
+       character must be present. When one of these  optimizations  suppresses
+       the  running  of  a match, any included backtracking verbs will not, of
+       course, be processed. You can suppress the start-of-match optimizations
+       by  setting  the  PCRE_NO_START_OPTIMIZE  option when calling pcre_com-
+       pile() or pcre_exec(), or by starting the pattern with (*NO_START_OPT).
+       There is more discussion of this option in the section entitled "Option
+       bits for pcre_exec()" in the pcreapi documentation.
+
+       Experiments with Perl suggest that it too  has  similar  optimizations,
+       sometimes leading to anomalous results.
+
+   Verbs that act immediately
+
+       The  following  verbs act as soon as they are encountered. They may not
+       be followed by a name.
+
+          (*ACCEPT)
+
+       This verb causes the match to end successfully, skipping the  remainder
+       of  the pattern. However, when it is inside a subpattern that is called
+       as a subroutine, only that subpattern is ended  successfully.  Matching
+       then  continues  at  the  outer level. If (*ACCEPT) is inside capturing
+       parentheses, the data so far is captured. For example:
+
+         A((?:A|B(*ACCEPT)|C)D)
+
+       This matches "AB", "AAD", or "ACD"; when it matches "AB", "B"  is  cap-
+       tured by the outer parentheses.
+
+         (*FAIL) or (*F)
+
+       This  verb causes a matching failure, forcing backtracking to occur. It
+       is equivalent to (?!) but easier to read. The Perl documentation  notes
+       that  it  is  probably  useful only when combined with (?{}) or (??{}).
+       Those are, of course, Perl features that are not present in  PCRE.  The
+       nearest  equivalent is the callout feature, as for example in this pat-
+       tern:
+
+         a+(?C)(*FAIL)
+
+       A match with the string "aaaa" always fails, but the callout  is  taken
+       before each backtrack happens (in this example, 10 times).
+
+   Recording which path was taken
+
+       There  is  one  verb  whose  main  purpose  is to track how a match was
+       arrived at, though it also has a  secondary  use  in  conjunction  with
+       advancing the match starting point (see (*SKIP) below).
+
+         (*MARK:NAME) or (*:NAME)
+
+       A  name  is  always  required  with  this  verb.  There  may be as many
+       instances of (*MARK) as you like in a pattern, and their names  do  not
+       have to be unique.
+
+       When  a match succeeds, the name of the last-encountered (*MARK) on the
+       matching path is passed back to the caller as described in the  section
+       entitled  "Extra  data  for  pcre_exec()" in the pcreapi documentation.
+       Here is an example of pcretest output, where the /K  modifier  requests
+       the retrieval and outputting of (*MARK) data:
+
+           re> /X(*MARK:A)Y|X(*MARK:B)Z/K
+         data> XY
+          0: XY
+         MK: A
+         XZ
+          0: XZ
+         MK: B
+
+       The (*MARK) name is tagged with "MK:" in this output, and in this exam-
+       ple it indicates which of the two alternatives matched. This is a  more
+       efficient  way of obtaining this information than putting each alterna-
+       tive in its own capturing parentheses.
+
+       If (*MARK) is encountered in a positive assertion, its name is recorded
+       and passed back if it is the last-encountered. This does not happen for
+       negative assertions.
+
+       After a partial match or a failed match, the name of the  last  encoun-
+       tered (*MARK) in the entire match process is returned. For example:
+
+           re> /X(*MARK:A)Y|X(*MARK:B)Z/K
+         data> XP
+         No match, mark = B
+
+       Note  that  in  this  unanchored  example the mark is retained from the
+       match attempt that started at the letter "X" in the subject. Subsequent
+       match attempts starting at "P" and then with an empty string do not get
+       as far as the (*MARK) item, but nevertheless do not reset it.
+
+       If you are interested in  (*MARK)  values  after  failed  matches,  you
+       should  probably  set  the PCRE_NO_START_OPTIMIZE option (see above) to
+       ensure that the match is always attempted.
+
+   Verbs that act after backtracking
+
+       The following verbs do nothing when they are encountered. Matching con-
+       tinues  with what follows, but if there is no subsequent match, causing
+       a backtrack to the verb, a failure is  forced.  That  is,  backtracking
+       cannot  pass  to the left of the verb. However, when one of these verbs
+       appears inside an atomic group, its effect is confined to  that  group,
+       because  once the group has been matched, there is never any backtrack-
+       ing into it. In this situation, backtracking can  "jump  back"  to  the
+       left  of the entire atomic group. (Remember also, as stated above, that
+       this localization also applies in subroutine calls and assertions.)
+
+       These verbs differ in exactly what kind of failure  occurs  when  back-
+       tracking reaches them.
+
+         (*COMMIT)
+
+       This  verb, which may not be followed by a name, causes the whole match
+       to fail outright if the rest of the pattern does not match. Even if the
+       pattern is unanchored, no further attempts to find a match by advancing
+       the  starting  point  take  place.  Once  (*COMMIT)  has  been  passed,
+       pcre_exec()  is  committed  to  finding a match at the current starting
+       point, or not at all. For example:
+
+         a+(*COMMIT)b
+
+       This matches "xxaab" but not "aacaab". It can be thought of as  a  kind
+       of dynamic anchor, or "I've started, so I must finish." The name of the
+       most recently passed (*MARK) in the path is passed back when  (*COMMIT)
+       forces a match failure.
+
+       Note  that  (*COMMIT)  at  the start of a pattern is not the same as an
+       anchor, unless PCRE's start-of-match optimizations are turned  off,  as
+       shown in this pcretest example:
+
+           re> /(*COMMIT)abc/
+         data> xyzabc
+          0: abc
+         xyzabc\Y
+         No match
+
+       PCRE  knows  that  any  match  must start with "a", so the optimization
+       skips along the subject to "a" before running the first match  attempt,
+       which  succeeds.  When the optimization is disabled by the \Y escape in
+       the second subject, the match starts at "x" and so the (*COMMIT) causes
+       it to fail without trying any other starting points.
+
+         (*PRUNE) or (*PRUNE:NAME)
+
+       This  verb causes the match to fail at the current starting position in
+       the subject if the rest of the pattern does not match. If  the  pattern
+       is  unanchored,  the  normal  "bumpalong"  advance to the next starting
+       character then happens. Backtracking can occur as usual to the left  of
+       (*PRUNE),  before  it  is  reached,  or  when  matching to the right of
+       (*PRUNE), but if there is no match to the  right,  backtracking  cannot
+       cross  (*PRUNE). In simple cases, the use of (*PRUNE) is just an alter-
+       native to an atomic group or possessive quantifier, but there are  some
+       uses of (*PRUNE) that cannot be expressed in any other way.  The behav-
+       iour of (*PRUNE:NAME)  is  the  same  as  (*MARK:NAME)(*PRUNE).  In  an
+       anchored pattern (*PRUNE) has the same effect as (*COMMIT).
+
+         (*SKIP)
+
+       This  verb, when given without a name, is like (*PRUNE), except that if
+       the pattern is unanchored, the "bumpalong" advance is not to  the  next
+       character, but to the position in the subject where (*SKIP) was encoun-
+       tered. (*SKIP) signifies that whatever text was matched leading  up  to
+       it cannot be part of a successful match. Consider:
+
+         a+(*SKIP)b
+
+       If  the  subject  is  "aaaac...",  after  the first match attempt fails
+       (starting at the first character in the  string),  the  starting  point
+       skips on to start the next attempt at "c". Note that a possessive quan-
+       tifer does not have the same effect as this example; although it  would
+       suppress  backtracking  during  the  first  match  attempt,  the second
+       attempt would start at the second character instead of skipping  on  to
+       "c".
+
+         (*SKIP:NAME)
+
+       When  (*SKIP) has an associated name, its behaviour is modified. If the
+       following pattern fails to match, the previous path through the pattern
+       is  searched for the most recent (*MARK) that has the same name. If one
+       is found, the "bumpalong" advance is to the subject position that  cor-
+       responds  to  that (*MARK) instead of to where (*SKIP) was encountered.
+       If no (*MARK) with a matching name is found, the (*SKIP) is ignored.
+
+         (*THEN) or (*THEN:NAME)
+
+       This verb causes a skip to the next innermost alternative if  the  rest
+       of  the  pattern does not match. That is, it cancels pending backtrack-
+       ing, but only within the current alternative. Its name comes  from  the
+       observation that it can be used for a pattern-based if-then-else block:
+
+         ( COND1 (*THEN) FOO | COND2 (*THEN) BAR | COND3 (*THEN) BAZ ) ...
+
+       If  the COND1 pattern matches, FOO is tried (and possibly further items
+       after the end of the group if FOO succeeds); on  failure,  the  matcher
+       skips  to  the second alternative and tries COND2, without backtracking
+       into COND1. The behaviour  of  (*THEN:NAME)  is  exactly  the  same  as
+       (*MARK:NAME)(*THEN).   If (*THEN) is not inside an alternation, it acts
+       like (*PRUNE).
+
+       Note that a subpattern that does not contain a | character  is  just  a
+       part  of the enclosing alternative; it is not a nested alternation with
+       only one alternative. The effect of (*THEN) extends beyond such a  sub-
+       pattern  to  the enclosing alternative. Consider this pattern, where A,
+       B, etc. are complex pattern fragments that do not contain any | charac-
+       ters at this level:
+
+         A (B(*THEN)C) | D
+
+       If  A and B are matched, but there is a failure in C, matching does not
+       backtrack into A; instead it moves to the next alternative, that is, D.
+       However,  if the subpattern containing (*THEN) is given an alternative,
+       it behaves differently:
+
+         A (B(*THEN)C | (*FAIL)) | D
+
+       The effect of (*THEN) is now confined to the inner subpattern. After  a
+       failure in C, matching moves to (*FAIL), which causes the whole subpat-
+       tern to fail because there are no more alternatives  to  try.  In  this
+       case, matching does now backtrack into A.
+
+       Note also that a conditional subpattern is not considered as having two
+       alternatives, because only one is ever used.  In  other  words,  the  |
+       character in a conditional subpattern has a different meaning. Ignoring
+       white space, consider:
+
+         ^.*? (?(?=a) a | b(*THEN)c )
+
+       If the subject is "ba", this pattern does not  match.  Because  .*?  is
+       ungreedy,  it  initially  matches  zero characters. The condition (?=a)
+       then fails, the character "b" is matched,  but  "c"  is  not.  At  this
+       point,  matching does not backtrack to .*? as might perhaps be expected
+       from the presence of the | character.  The  conditional  subpattern  is
+       part of the single alternative that comprises the whole pattern, and so
+       the match fails. (If there was a backtrack into  .*?,  allowing  it  to
+       match "b", the match would succeed.)
+
+       The  verbs just described provide four different "strengths" of control
+       when subsequent matching fails. (*THEN) is the weakest, carrying on the
+       match  at  the next alternative. (*PRUNE) comes next, failing the match
+       at the current starting position, but allowing an advance to  the  next
+       character  (for an unanchored pattern). (*SKIP) is similar, except that
+       the advance may be more than one character. (*COMMIT) is the strongest,
+       causing the entire match to fail.
+
+       If more than one such verb is present in a pattern, the "strongest" one
+       wins.  For example, consider this pattern, where A, B, etc. are complex
+       pattern fragments:
+
+         (A(*COMMIT)B(*THEN)C|D)
+
+       Once  A  has  matched,  PCRE is committed to this match, at the current
+       starting position. If subsequently B matches, but C does not, the  nor-
+       mal (*THEN) action of trying the next alternative (that is, D) does not
+       happen because (*COMMIT) overrides.
+
+
+SEE ALSO
+
+       pcreapi(3), pcrecallout(3),  pcrematching(3),  pcresyntax(3),  pcre(3),
+       pcre16(3).
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 17 June 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCRESYNTAX(3)                                                    PCRESYNTAX(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE REGULAR EXPRESSION SYNTAX SUMMARY
+
+       The  full syntax and semantics of the regular expressions that are sup-
+       ported by PCRE are described in  the  pcrepattern  documentation.  This
+       document contains a quick-reference summary of the syntax.
+
+
+QUOTING
+
+         \x         where x is non-alphanumeric is a literal x
+         \Q...\E    treat enclosed characters as literal
+
+
+CHARACTERS
+
+         \a         alarm, that is, the BEL character (hex 07)
+         \cx        "control-x", where x is any ASCII character
+         \e         escape (hex 1B)
+         \f         form feed (hex 0C)
+         \n         newline (hex 0A)
+         \r         carriage return (hex 0D)
+         \t         tab (hex 09)
+         \ddd       character with octal code ddd, or backreference
+         \xhh       character with hex code hh
+         \x{hhh..}  character with hex code hhh..
+
+
+CHARACTER TYPES
+
+         .          any character except newline;
+                      in dotall mode, any character whatsoever
+         \C         one data unit, even in UTF mode (best avoided)
+         \d         a decimal digit
+         \D         a character that is not a decimal digit
+         \h         a horizontal white space character
+         \H         a character that is not a horizontal white space character
+         \N         a character that is not a newline
+         \p{xx}     a character with the xx property
+         \P{xx}     a character without the xx property
+         \R         a newline sequence
+         \s         a white space character
+         \S         a character that is not a white space character
+         \v         a vertical white space character
+         \V         a character that is not a vertical white space character
+         \w         a "word" character
+         \W         a "non-word" character
+         \X         an extended Unicode sequence
+
+       In  PCRE,  by  default, \d, \D, \s, \S, \w, and \W recognize only ASCII
+       characters, even in a UTF mode. However, this can be changed by setting
+       the PCRE_UCP option.
+
+
+GENERAL CATEGORY PROPERTIES FOR \p and \P
+
+         C          Other
+         Cc         Control
+         Cf         Format
+         Cn         Unassigned
+         Co         Private use
+         Cs         Surrogate
+
+         L          Letter
+         Ll         Lower case letter
+         Lm         Modifier letter
+         Lo         Other letter
+         Lt         Title case letter
+         Lu         Upper case letter
+         L&         Ll, Lu, or Lt
+
+         M          Mark
+         Mc         Spacing mark
+         Me         Enclosing mark
+         Mn         Non-spacing mark
+
+         N          Number
+         Nd         Decimal number
+         Nl         Letter number
+         No         Other number
+
+         P          Punctuation
+         Pc         Connector punctuation
+         Pd         Dash punctuation
+         Pe         Close punctuation
+         Pf         Final punctuation
+         Pi         Initial punctuation
+         Po         Other punctuation
+         Ps         Open punctuation
+
+         S          Symbol
+         Sc         Currency symbol
+         Sk         Modifier symbol
+         Sm         Mathematical symbol
+         So         Other symbol
+
+         Z          Separator
+         Zl         Line separator
+         Zp         Paragraph separator
+         Zs         Space separator
+
+
+PCRE SPECIAL CATEGORY PROPERTIES FOR \p and \P
+
+         Xan        Alphanumeric: union of properties L and N
+         Xps        POSIX space: property Z or tab, NL, VT, FF, CR
+         Xsp        Perl space: property Z or tab, NL, FF, CR
+         Xwd        Perl word: property Xan or underscore
+
+
+SCRIPT NAMES FOR \p AND \P
+
+       Arabic,  Armenian,  Avestan, Balinese, Bamum, Batak, Bengali, Bopomofo,
+       Brahmi, Braille, Buginese, Buhid, Canadian_Aboriginal, Carian,  Chakma,
+       Cham,  Cherokee, Common, Coptic, Cuneiform, Cypriot, Cyrillic, Deseret,
+       Devanagari,  Egyptian_Hieroglyphs,  Ethiopic,   Georgian,   Glagolitic,
+       Gothic,  Greek, Gujarati, Gurmukhi, Han, Hangul, Hanunoo, Hebrew, Hira-
+       gana,  Imperial_Aramaic,  Inherited,  Inscriptional_Pahlavi,   Inscrip-
+       tional_Parthian,   Javanese,   Kaithi,   Kannada,  Katakana,  Kayah_Li,
+       Kharoshthi, Khmer, Lao, Latin, Lepcha, Limbu, Linear_B,  Lisu,  Lycian,
+       Lydian,    Malayalam,    Mandaic,    Meetei_Mayek,    Meroitic_Cursive,
+       Meroitic_Hieroglyphs,  Miao,  Mongolian,  Myanmar,  New_Tai_Lue,   Nko,
+       Ogham,    Old_Italic,   Old_Persian,   Old_South_Arabian,   Old_Turkic,
+       Ol_Chiki, Oriya, Osmanya, Phags_Pa, Phoenician, Rejang, Runic,  Samari-
+       tan,  Saurashtra,  Sharada,  Shavian, Sinhala, Sora_Sompeng, Sundanese,
+       Syloti_Nagri, Syriac, Tagalog, Tagbanwa,  Tai_Le,  Tai_Tham,  Tai_Viet,
+       Takri,  Tamil,  Telugu, Thaana, Thai, Tibetan, Tifinagh, Ugaritic, Vai,
+       Yi.
+
+
+CHARACTER CLASSES
+
+         [...]       positive character class
+         [^...]      negative character class
+         [x-y]       range (can be used for hex characters)
+         [[:xxx:]]   positive POSIX named set
+         [[:^xxx:]]  negative POSIX named set
+
+         alnum       alphanumeric
+         alpha       alphabetic
+         ascii       0-127
+         blank       space or tab
+         cntrl       control character
+         digit       decimal digit
+         graph       printing, excluding space
+         lower       lower case letter
+         print       printing, including space
+         punct       printing, excluding alphanumeric
+         space       white space
+         upper       upper case letter
+         word        same as \w
+         xdigit      hexadecimal digit
+
+       In PCRE, POSIX character set names recognize only ASCII  characters  by
+       default,  but  some  of them use Unicode properties if PCRE_UCP is set.
+       You can use \Q...\E inside a character class.
+
+
+QUANTIFIERS
+
+         ?           0 or 1, greedy
+         ?+          0 or 1, possessive
+         ??          0 or 1, lazy
+         *           0 or more, greedy
+         *+          0 or more, possessive
+         *?          0 or more, lazy
+         +           1 or more, greedy
+         ++          1 or more, possessive
+         +?          1 or more, lazy
+         {n}         exactly n
+         {n,m}       at least n, no more than m, greedy
+         {n,m}+      at least n, no more than m, possessive
+         {n,m}?      at least n, no more than m, lazy
+         {n,}        n or more, greedy
+         {n,}+       n or more, possessive
+         {n,}?       n or more, lazy
+
+
+ANCHORS AND SIMPLE ASSERTIONS
+
+         \b          word boundary
+         \B          not a word boundary
+         ^           start of subject
+                      also after internal newline in multiline mode
+         \A          start of subject
+         $           end of subject
+                      also before newline at end of subject
+                      also before internal newline in multiline mode
+         \Z          end of subject
+                      also before newline at end of subject
+         \z          end of subject
+         \G          first matching position in subject
+
+
+MATCH POINT RESET
+
+         \K          reset start of match
+
+
+ALTERNATION
+
+         expr|expr|expr...
+
+
+CAPTURING
+
+         (...)           capturing group
+         (?<name>...)    named capturing group (Perl)
+         (?'name'...)    named capturing group (Perl)
+         (?P<name>...)   named capturing group (Python)
+         (?:...)         non-capturing group
+         (?|...)         non-capturing group; reset group numbers for
+                          capturing groups in each alternative
+
+
+ATOMIC GROUPS
+
+         (?>...)         atomic, non-capturing group
+
+
+COMMENT
+
+         (?#....)        comment (not nestable)
+
+
+OPTION SETTING
+
+         (?i)            caseless
+         (?J)            allow duplicate names
+         (?m)            multiline
+         (?s)            single line (dotall)
+         (?U)            default ungreedy (lazy)
+         (?x)            extended (ignore white space)
+         (?-...)         unset option(s)
+
+       The following are recognized only at the start of a  pattern  or  after
+       one of the newline-setting options with similar syntax:
+
+         (*NO_START_OPT) no start-match optimization (PCRE_NO_START_OPTIMIZE)
+         (*UTF8)         set UTF-8 mode: 8-bit library (PCRE_UTF8)
+         (*UTF16)        set UTF-16 mode: 16-bit library (PCRE_UTF16)
+         (*UCP)          set PCRE_UCP (use Unicode properties for \d etc)
+
+
+LOOKAHEAD AND LOOKBEHIND ASSERTIONS
+
+         (?=...)         positive look ahead
+         (?!...)         negative look ahead
+         (?<=...)        positive look behind
+         (?<!...)        negative look behind
+
+       Each top-level branch of a look behind must be of a fixed length.
+
+
+BACKREFERENCES
+
+         \n              reference by number (can be ambiguous)
+         \gn             reference by number
+         \g{n}           reference by number
+         \g{-n}          relative reference by number
+         \k<name>        reference by name (Perl)
+         \k'name'        reference by name (Perl)
+         \g{name}        reference by name (Perl)
+         \k{name}        reference by name (.NET)
+         (?P=name)       reference by name (Python)
+
+
+SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)
+
+         (?R)            recurse whole pattern
+         (?n)            call subpattern by absolute number
+         (?+n)           call subpattern by relative number
+         (?-n)           call subpattern by relative number
+         (?&name)        call subpattern by name (Perl)
+         (?P>name)       call subpattern by name (Python)
+         \g<name>        call subpattern by name (Oniguruma)
+         \g'name'        call subpattern by name (Oniguruma)
+         \g<n>           call subpattern by absolute number (Oniguruma)
+         \g'n'           call subpattern by absolute number (Oniguruma)
+         \g<+n>          call subpattern by relative number (PCRE extension)
+         \g'+n'          call subpattern by relative number (PCRE extension)
+         \g<-n>          call subpattern by relative number (PCRE extension)
+         \g'-n'          call subpattern by relative number (PCRE extension)
+
+
+CONDITIONAL PATTERNS
+
+         (?(condition)yes-pattern)
+         (?(condition)yes-pattern|no-pattern)
+
+         (?(n)...        absolute reference condition
+         (?(+n)...       relative reference condition
+         (?(-n)...       relative reference condition
+         (?(<name>)...   named reference condition (Perl)
+         (?('name')...   named reference condition (Perl)
+         (?(name)...     named reference condition (PCRE)
+         (?(R)...        overall recursion condition
+         (?(Rn)...       specific group recursion condition
+         (?(R&name)...   specific recursion condition
+         (?(DEFINE)...   define subpattern for reference
+         (?(assert)...   assertion condition
+
+
+BACKTRACKING CONTROL
+
+       The following act immediately they are reached:
+
+         (*ACCEPT)       force successful match
+         (*FAIL)         force backtrack; synonym (*F)
+         (*MARK:NAME)    set name to be passed back; synonym (*:NAME)
+
+       The  following  act only when a subsequent match failure causes a back-
+       track to reach them. They all force a match failure, but they differ in
+       what happens afterwards. Those that advance the start-of-match point do
+       so only if the pattern is not anchored.
+
+         (*COMMIT)       overall failure, no advance of starting point
+         (*PRUNE)        advance to next starting character
+         (*PRUNE:NAME)   equivalent to (*MARK:NAME)(*PRUNE)
+         (*SKIP)         advance to current matching position
+         (*SKIP:NAME)    advance to position corresponding to an earlier
+                         (*MARK:NAME); if not found, the (*SKIP) is ignored
+         (*THEN)         local failure, backtrack to next alternation
+         (*THEN:NAME)    equivalent to (*MARK:NAME)(*THEN)
+
+
+NEWLINE CONVENTIONS
+
+       These are recognized only at the very start of the pattern or  after  a
+       (*BSR_...), (*UTF8), (*UTF16) or (*UCP) option.
+
+         (*CR)           carriage return only
+         (*LF)           linefeed only
+         (*CRLF)         carriage return followed by linefeed
+         (*ANYCRLF)      all three of the above
+         (*ANY)          any Unicode newline sequence
+
+
+WHAT \R MATCHES
+
+       These  are  recognized only at the very start of the pattern or after a
+       (*...) option that sets the newline convention or a UTF or UCP mode.
+
+         (*BSR_ANYCRLF)  CR, LF, or CRLF
+         (*BSR_UNICODE)  any Unicode newline sequence
+
+
+CALLOUTS
+
+         (?C)      callout
+         (?Cn)     callout with data n
+
+
+SEE ALSO
+
+       pcrepattern(3), pcreapi(3), pcrecallout(3), pcrematching(3), pcre(3).
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 10 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREUNICODE(3)                                                  PCREUNICODE(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+UTF-8, UTF-16, AND UNICODE PROPERTY SUPPORT
+
+       From Release 8.30, in addition to its previous UTF-8 support, PCRE also
+       supports UTF-16 by means of a separate  16-bit  library.  This  can  be
+       built as well as, or instead of, the 8-bit library.
+
+
+UTF-8 SUPPORT
+
+       In  order  process  UTF-8  strings, you must build PCRE's 8-bit library
+       with UTF support, and, in addition, you must call  pcre_compile()  with
+       the  PCRE_UTF8 option flag, or the pattern must start with the sequence
+       (*UTF8). When either of these is the case, both  the  pattern  and  any
+       subject  strings  that  are  matched  against  it  are treated as UTF-8
+       strings instead of strings of 1-byte characters.
+
+
+UTF-16 SUPPORT
+
+       In order process UTF-16 strings, you must build PCRE's  16-bit  library
+       with UTF support, and, in addition, you must call pcre16_compile() with
+       the PCRE_UTF16 option flag, or the pattern must start with the sequence
+       (*UTF16).  When  either  of these is the case, both the pattern and any
+       subject strings that are matched  against  it  are  treated  as  UTF-16
+       strings instead of strings of 16-bit characters.
+
+
+UTF SUPPORT OVERHEAD
+
+       If  you  compile  PCRE with UTF support, but do not use it at run time,
+       the library will be a bit bigger, but the additional run time  overhead
+       is limited to testing the PCRE_UTF8/16 flag occasionally, so should not
+       be very big.
+
+
+UNICODE PROPERTY SUPPORT
+
+       If PCRE is built with Unicode character property support (which implies
+       UTF  support), the escape sequences \p{..}, \P{..}, and \X can be used.
+       The available properties that can be tested are limited to the  general
+       category  properties  such  as  Lu for an upper case letter or Nd for a
+       decimal number, the Unicode script names such as Arabic or Han, and the
+       derived  properties Any and L&. A full list is given in the pcrepattern
+       documentation. Only the short names for properties are  supported.  For
+       example,  \p{L}  matches a letter. Its Perl synonym, \p{Letter}, is not
+       supported.  Furthermore, in Perl, many  properties  may  optionally  be
+       prefixed  by  "Is", for compatibility with Perl 5.6. PCRE does not sup-
+       port this.
+
+   Validity of UTF-8 strings
+
+       When you set the PCRE_UTF8 flag, the byte strings  passed  as  patterns
+       and subjects are (by default) checked for validity on entry to the rel-
+       evant functions. The entire string is checked before any other process-
+       ing  takes  place. From release 7.3 of PCRE, the check is according the
+       rules of RFC 3629, which are themselves derived from the Unicode speci-
+       fication.  Earlier  releases  of  PCRE  followed the rules of RFC 2279,
+       which allows the full range of 31-bit values  (0  to  0x7FFFFFFF).  The
+       current  check allows only values in the range U+0 to U+10FFFF, exclud-
+       ing U+D800 to U+DFFF.
+
+       The excluded code points are the "Surrogate Area" of Unicode. They  are
+       reserved  for  use  by  UTF-16,  where they are used in pairs to encode
+       codepoints with values greater than 0xFFFF. The code  points  that  are
+       encoded by UTF-16 pairs are available independently in the UTF-8 encod-
+       ing. (In other words, the whole surrogate thing is a fudge  for  UTF-16
+       which unfortunately messes up UTF-8.)
+
+       If an invalid UTF-8 string is passed to PCRE, an error return is given.
+       At compile time, the only additional information is the offset  to  the
+       first byte of the failing character. The run-time functions pcre_exec()
+       and pcre_dfa_exec() also pass back this information, as well as a  more
+       detailed  reason  code if the caller has provided memory in which to do
+       this.
+
+       In some situations, you may already know that your strings  are  valid,
+       and  therefore  want  to  skip these checks in order to improve perfor-
+       mance, for example in the case of a long subject string that  is  being
+       scanned   repeatedly   with   different   patterns.   If  you  set  the
+       PCRE_NO_UTF8_CHECK flag at compile time or at run  time,  PCRE  assumes
+       that  the  pattern  or subject it is given (respectively) contains only
+       valid UTF-8 codes. In this case, it does not diagnose an invalid  UTF-8
+       string.
+
+       If  you  pass  an  invalid UTF-8 string when PCRE_NO_UTF8_CHECK is set,
+       what happens depends on why the string is invalid. If the  string  con-
+       forms to the "old" definition of UTF-8 (RFC 2279), it is processed as a
+       string of characters in the range 0 to  0x7FFFFFFF  by  pcre_dfa_exec()
+       and  the interpreted version of pcre_exec(). In other words, apart from
+       the initial validity test, these functions (when in UTF-8 mode)  handle
+       strings  according  to the more liberal rules of RFC 2279. However, the
+       just-in-time (JIT) optimization for pcre_exec() supports only RFC 3629.
+       If  you are using JIT optimization, or if the string does not even con-
+       form to RFC 2279, the result is undefined. Your program may crash.
+
+       If you want to process strings  of  values  in  the  full  range  0  to
+       0x7FFFFFFF,  encoded in a UTF-8-like manner as per the old RFC, you can
+       set PCRE_NO_UTF8_CHECK to bypass the more restrictive test. However, in
+       this  situation,  you  will  have to apply your own validity check, and
+       avoid the use of JIT optimization.
+
+   Validity of UTF-16 strings
+
+       When you set the PCRE_UTF16 flag, the strings of 16-bit data units that
+       are passed as patterns and subjects are (by default) checked for valid-
+       ity on entry to the relevant functions. Values other than those in  the
+       surrogate range U+D800 to U+DFFF are independent code points. Values in
+       the surrogate range must be used in pairs in the correct manner.
+
+       If an invalid UTF-16 string is passed  to  PCRE,  an  error  return  is
+       given.  At  compile time, the only additional information is the offset
+       to the first data unit of the failing character. The run-time functions
+       pcre16_exec() and pcre16_dfa_exec() also pass back this information, as
+       well as a more detailed reason code if the caller has  provided  memory
+       in which to do this.
+
+       In  some  situations, you may already know that your strings are valid,
+       and therefore want to skip these checks in  order  to  improve  perfor-
+       mance.  If  you  set the PCRE_NO_UTF16_CHECK flag at compile time or at
+       run time, PCRE assumes that the pattern or subject it is given (respec-
+       tively) contains only valid UTF-16 sequences. In this case, it does not
+       diagnose an invalid UTF-16 string.
+
+   General comments about UTF modes
+
+       1. Codepoints less than 256  can  be  specified  by  either  braced  or
+       unbraced  hexadecimal  escape  sequences (for example, \x{b3} or \xb3).
+       Larger values have to use braced sequences.
+
+       2. Octal numbers up to \777 are recognized, and  in  UTF-8  mode,  they
+       match two-byte characters for values greater than \177.
+
+       3. Repeat quantifiers apply to complete UTF characters, not to individ-
+       ual data units, for example: \x{100}{3}.
+
+       4. The dot metacharacter matches one UTF character instead of a  single
+       data unit.
+
+       5.  The  escape sequence \C can be used to match a single byte in UTF-8
+       mode, or a single 16-bit data unit in UTF-16 mode, but its use can lead
+       to some strange effects because it breaks up multi-unit characters (see
+       the description of \C in the pcrepattern documentation). The use of  \C
+       is    not    supported    in    the   alternative   matching   function
+       pcre[16]_dfa_exec(), nor is it supported in UTF mode by the  JIT  opti-
+       mization of pcre[16]_exec(). If JIT optimization is requested for a UTF
+       pattern that contains \C, it will not succeed, and so the matching will
+       be carried out by the normal interpretive function.
+
+       6.  The  character escapes \b, \B, \d, \D, \s, \S, \w, and \W correctly
+       test characters of any code value, but, by default, the characters that
+       PCRE  recognizes  as digits, spaces, or word characters remain the same
+       set as in non-UTF mode, all with values less  than  256.  This  remains
+       true  even  when  PCRE  is  built  to include Unicode property support,
+       because to do otherwise would slow down PCRE in many common cases. Note
+       in  particular that this applies to \b and \B, because they are defined
+       in terms of \w and \W. If you really want to test for a wider sense of,
+       say,  "digit",  you  can  use  explicit  Unicode property tests such as
+       \p{Nd}. Alternatively, if you set the PCRE_UCP option, the way that the
+       character  escapes  work is changed so that Unicode properties are used
+       to determine which characters match. There are more details in the sec-
+       tion on generic character types in the pcrepattern documentation.
+
+       7.  Similarly,  characters that match the POSIX named character classes
+       are all low-valued characters, unless the PCRE_UCP option is set.
+
+       8. However, the horizontal and vertical white  space  matching  escapes
+       (\h,  \H,  \v, and \V) do match all the appropriate Unicode characters,
+       whether or not PCRE_UCP is set.
+
+       9. Case-insensitive matching applies only to  characters  whose  values
+       are  less than 128, unless PCRE is built with Unicode property support.
+       Even when Unicode property support is available, PCRE  still  uses  its
+       own  character  tables when checking the case of low-valued characters,
+       so as not to degrade performance.  The Unicode property information  is
+       used only for characters with higher values. Furthermore, PCRE supports
+       case-insensitive matching only  when  there  is  a  one-to-one  mapping
+       between  a letter's cases. There are a small number of many-to-one map-
+       pings in Unicode; these are not supported by PCRE.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 14 April 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREJIT(3)                                                          PCREJIT(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE JUST-IN-TIME COMPILER SUPPORT
+
+       Just-in-time  compiling  is a heavyweight optimization that can greatly
+       speed up pattern matching. However, it comes at the cost of extra  pro-
+       cessing before the match is performed. Therefore, it is of most benefit
+       when the same pattern is going to be matched many times. This does  not
+       necessarily  mean  many calls of a matching function; if the pattern is
+       not anchored, matching attempts may take place many  times  at  various
+       positions  in  the  subject, even for a single call.  Therefore, if the
+       subject string is very long, it may still pay to use  JIT  for  one-off
+       matches.
+
+       JIT  support  applies  only to the traditional Perl-compatible matching
+       function.  It does not apply when the DFA matching  function  is  being
+       used. The code for this support was written by Zoltan Herczeg.
+
+
+8-BIT and 16-BIT SUPPORT
+
+       JIT  support is available for both the 8-bit and 16-bit PCRE libraries.
+       To  keep  this  documentation  simple,  only  the  8-bit  interface  is
+       described in what follows. If you are using the 16-bit library, substi-
+       tute  the  16-bit  functions  and  16-bit  structures   (for   example,
+       pcre16_jit_stack instead of pcre_jit_stack).
+
+
+AVAILABILITY OF JIT SUPPORT
+
+       JIT  support  is  an  optional  feature of PCRE. The "configure" option
+       --enable-jit (or equivalent CMake option) must  be  set  when  PCRE  is
+       built  if  you want to use JIT. The support is limited to the following
+       hardware platforms:
+
+         ARM v5, v7, and Thumb2
+         Intel x86 32-bit and 64-bit
+         MIPS 32-bit
+         Power PC 32-bit and 64-bit
+
+       If --enable-jit is set on an unsupported platform, compilation fails.
+
+       A program that is linked with PCRE 8.20 or later can tell if  JIT  sup-
+       port  is  available  by  calling pcre_config() with the PCRE_CONFIG_JIT
+       option. The result is 1 when JIT is available, and  0  otherwise.  How-
+       ever, a simple program does not need to check this in order to use JIT.
+       The API is implemented in a way that falls  back  to  the  interpretive
+       code if JIT is not available.
+
+       If  your program may sometimes be linked with versions of PCRE that are
+       older than 8.20, but you want to use JIT when it is available, you  can
+       test the values of PCRE_MAJOR and PCRE_MINOR, or the existence of a JIT
+       macro such as PCRE_CONFIG_JIT, for compile-time control of your code.
+
+
+SIMPLE USE OF JIT
+
+       You have to do two things to make use of the JIT support  in  the  sim-
+       plest way:
+
+         (1) Call pcre_study() with the PCRE_STUDY_JIT_COMPILE option for
+             each compiled pattern, and pass the resulting pcre_extra block to
+             pcre_exec().
+
+         (2) Use pcre_free_study() to free the pcre_extra block when it is
+             no longer needed, instead of just freeing it yourself. This
+             ensures that any JIT data is also freed.
+
+       For  a  program  that may be linked with pre-8.20 versions of PCRE, you
+       can insert
+
+         #ifndef PCRE_STUDY_JIT_COMPILE
+         #define PCRE_STUDY_JIT_COMPILE 0
+         #endif
+
+       so that no option is passed to pcre_study(),  and  then  use  something
+       like this to free the study data:
+
+         #ifdef PCRE_CONFIG_JIT
+             pcre_free_study(study_ptr);
+         #else
+             pcre_free(study_ptr);
+         #endif
+
+       PCRE_STUDY_JIT_COMPILE  requests  the JIT compiler to generate code for
+       complete matches.  If  you  want  to  run  partial  matches  using  the
+       PCRE_PARTIAL_HARD  or  PCRE_PARTIAL_SOFT  options  of  pcre_exec(), you
+       should set one or both of the following  options  in  addition  to,  or
+       instead of, PCRE_STUDY_JIT_COMPILE when you call pcre_study():
+
+         PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+         PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+
+       The  JIT  compiler  generates  different optimized code for each of the
+       three modes (normal, soft partial, hard partial). When  pcre_exec()  is
+       called,  the appropriate code is run if it is available. Otherwise, the
+       pattern is matched using interpretive code.
+
+       In some circumstances you may need to call additional functions.  These
+       are  described  in  the  section  entitled  "Controlling the JIT stack"
+       below.
+
+       If JIT  support  is  not  available,  PCRE_STUDY_JIT_COMPILE  etc.  are
+       ignored, and no JIT data is created. Otherwise, the compiled pattern is
+       passed to the JIT compiler, which turns it into machine code that  exe-
+       cutes  much  faster than the normal interpretive code. When pcre_exec()
+       is passed a pcre_extra block containing a pointer to JIT  code  of  the
+       appropriate  mode  (normal  or  hard/soft  partial), it obeys that code
+       instead of running the interpreter. The result is  identical,  but  the
+       compiled JIT code runs much faster.
+
+       There  are some pcre_exec() options that are not supported for JIT exe-
+       cution. There are also some  pattern  items  that  JIT  cannot  handle.
+       Details  are  given below. In both cases, execution automatically falls
+       back to the interpretive code. If you want  to  know  whether  JIT  was
+       actually  used  for  a  particular  match, you should arrange for a JIT
+       callback function to be set up as described  in  the  section  entitled
+       "Controlling  the JIT stack" below, even if you do not need to supply a
+       non-default JIT stack. Such a callback function is called whenever  JIT
+       code  is about to be obeyed. If the execution options are not right for
+       JIT execution, the callback function is not obeyed.
+
+       If the JIT compiler finds an unsupported item, no JIT  data  is  gener-
+       ated.  You  can find out if JIT execution is available after studying a
+       pattern by calling pcre_fullinfo() with  the  PCRE_INFO_JIT  option.  A
+       result  of  1  means that JIT compilation was successful. A result of 0
+       means that JIT support is not available, or the pattern was not studied
+       with  PCRE_STUDY_JIT_COMPILE  etc., or the JIT compiler was not able to
+       handle the pattern.
+
+       Once a pattern has been studied, with or without JIT, it can be used as
+       many times as you like for matching different subject strings.
+
+
+UNSUPPORTED OPTIONS AND PATTERN ITEMS
+
+       The  only  pcre_exec() options that are supported for JIT execution are
+       PCRE_NO_UTF8_CHECK,  PCRE_NO_UTF16_CHECK,   PCRE_NOTBOL,   PCRE_NOTEOL,
+       PCRE_NOTEMPTY,  PCRE_NOTEMPTY_ATSTART, PCRE_PARTIAL_HARD, and PCRE_PAR-
+       TIAL_SOFT.
+
+       The unsupported pattern items are:
+
+         \C             match a single byte; not supported in UTF-8 mode
+         (?Cn)          callouts
+         (*PRUNE)       )
+         (*SKIP)        ) backtracking control verbs
+         (*THEN)        )
+
+       Support for some of these may be added in future.
+
+
+RETURN VALUES FROM JIT EXECUTION
+
+       When a pattern is matched using JIT execution, the  return  values  are
+       the  same as those given by the interpretive pcre_exec() code, with the
+       addition of one new error code: PCRE_ERROR_JIT_STACKLIMIT.  This  means
+       that  the memory used for the JIT stack was insufficient. See "Control-
+       ling the JIT stack" below for a discussion of JIT stack usage. For com-
+       patibility  with  the  interpretive pcre_exec() code, no more than two-
+       thirds of the ovector argument is used for passing back  captured  sub-
+       strings.
+
+       The  error  code  PCRE_ERROR_MATCHLIMIT  is returned by the JIT code if
+       searching a very large pattern tree goes on for too long, as it  is  in
+       the  same circumstance when JIT is not used, but the details of exactly
+       what is counted are not the same. The  PCRE_ERROR_RECURSIONLIMIT  error
+       code is never returned by JIT execution.
+
+
+SAVING AND RESTORING COMPILED PATTERNS
+
+       The  code  that  is  generated by the JIT compiler is architecture-spe-
+       cific, and is also position dependent. For those reasons it  cannot  be
+       saved  (in a file or database) and restored later like the bytecode and
+       other data of a compiled pattern. Saving and  restoring  compiled  pat-
+       terns  is not something many people do. More detail about this facility
+       is given in the pcreprecompile documentation. It should be possible  to
+       run  pcre_study() on a saved and restored pattern, and thereby recreate
+       the JIT data, but because JIT compilation uses  significant  resources,
+       it  is  probably  not worth doing this; you might as well recompile the
+       original pattern.
+
+
+CONTROLLING THE JIT STACK
+
+       When the compiled JIT code runs, it needs a block of memory to use as a
+       stack.   By  default,  it  uses 32K on the machine stack. However, some
+       large  or  complicated  patterns  need  more  than  this.   The   error
+       PCRE_ERROR_JIT_STACKLIMIT  is  given  when  there  is not enough stack.
+       Three functions are provided for managing blocks of memory for  use  as
+       JIT  stacks. There is further discussion about the use of JIT stacks in
+       the section entitled "JIT stack FAQ" below.
+
+       The pcre_jit_stack_alloc() function creates a JIT stack. Its  arguments
+       are  a starting size and a maximum size, and it returns a pointer to an
+       opaque structure of type pcre_jit_stack, or NULL if there is an  error.
+       The  pcre_jit_stack_free() function can be used to free a stack that is
+       no longer needed. (For the technically minded:  the  address  space  is
+       allocated by mmap or VirtualAlloc.)
+
+       JIT  uses far less memory for recursion than the interpretive code, and
+       a maximum stack size of 512K to 1M should be more than enough  for  any
+       pattern.
+
+       The  pcre_assign_jit_stack()  function  specifies  which stack JIT code
+       should use. Its arguments are as follows:
+
+         pcre_extra         *extra
+         pcre_jit_callback  callback
+         void               *data
+
+       The extra argument must be  the  result  of  studying  a  pattern  with
+       PCRE_STUDY_JIT_COMPILE etc. There are three cases for the values of the
+       other two options:
+
+         (1) If callback is NULL and data is NULL, an internal 32K block
+             on the machine stack is used.
+
+         (2) If callback is NULL and data is not NULL, data must be
+             a valid JIT stack, the result of calling pcre_jit_stack_alloc().
+
+         (3) If callback is not NULL, it must point to a function that is
+             called with data as an argument at the start of matching, in
+             order to set up a JIT stack. If the return from the callback
+             function is NULL, the internal 32K stack is used; otherwise the
+             return value must be a valid JIT stack, the result of calling
+             pcre_jit_stack_alloc().
+
+       A callback function is obeyed whenever JIT code is about to be run;  it
+       is  not  obeyed when pcre_exec() is called with options that are incom-
+       patible for JIT execution. A callback function can therefore be used to
+       determine  whether  a  match  operation  was  executed by JIT or by the
+       interpreter.
+
+       You may safely use the same JIT stack for more than one pattern (either
+       by  assigning directly or by callback), as long as the patterns are all
+       matched sequentially in the same thread. In a multithread  application,
+       if  you  do not specify a JIT stack, or if you assign or pass back NULL
+       from a callback, that is thread-safe, because each thread has  its  own
+       machine  stack.  However,  if  you  assign  or pass back a non-NULL JIT
+       stack, this must be a different stack  for  each  thread  so  that  the
+       application is thread-safe.
+
+       Strictly  speaking,  even more is allowed. You can assign the same non-
+       NULL stack to any number of patterns as long as they are not  used  for
+       matching  by  multiple  threads  at the same time. For example, you can
+       assign the same stack to all compiled patterns, and use a global  mutex
+       in  the callback to wait until the stack is available for use. However,
+       this is an inefficient solution, and not recommended.
+
+       This is a suggestion for how a multithreaded program that needs to  set
+       up non-default JIT stacks might operate:
+
+         During thread initalization
+           thread_local_var = pcre_jit_stack_alloc(...)
+
+         During thread exit
+           pcre_jit_stack_free(thread_local_var)
+
+         Use a one-line callback function
+           return thread_local_var
+
+       All  the  functions  described in this section do nothing if JIT is not
+       available, and pcre_assign_jit_stack() does nothing  unless  the  extra
+       argument  is  non-NULL  and  points  to  a pcre_extra block that is the
+       result of a successful study with PCRE_STUDY_JIT_COMPILE etc.
+
+
+JIT STACK FAQ
+
+       (1) Why do we need JIT stacks?
+
+       PCRE (and JIT) is a recursive, depth-first engine, so it needs a  stack
+       where  the local data of the current node is pushed before checking its
+       child nodes.  Allocating real machine stack on some platforms is diffi-
+       cult. For example, the stack chain needs to be updated every time if we
+       extend the stack on PowerPC.  Although it  is  possible,  its  updating
+       time overhead decreases performance. So we do the recursion in memory.
+
+       (2) Why don't we simply allocate blocks of memory with malloc()?
+
+       Modern  operating  systems  have  a  nice  feature: they can reserve an
+       address space instead of allocating memory. We can safely allocate mem-
+       ory  pages  inside  this address space, so the stack could grow without
+       moving memory data (this is important because of pointers). Thus we can
+       allocate  1M  address space, and use only a single memory page (usually
+       4K) if that is enough. However, we can still grow up to 1M  anytime  if
+       needed.
+
+       (3) Who "owns" a JIT stack?
+
+       The owner of the stack is the user program, not the JIT studied pattern
+       or anything else. The user program must ensure that if a stack is  used
+       by  pcre_exec(), (that is, it is assigned to the pattern currently run-
+       ning), that stack must not be used by any other threads (to avoid over-
+       writing the same memory area). The best practice for multithreaded pro-
+       grams is to allocate a stack for each thread,  and  return  this  stack
+       through the JIT callback function.
+
+       (4) When should a JIT stack be freed?
+
+       You can free a JIT stack at any time, as long as it will not be used by
+       pcre_exec() again. When you assign the  stack  to  a  pattern,  only  a
+       pointer  is set. There is no reference counting or any other magic. You
+       can free the patterns and stacks in any order,  anytime.  Just  do  not
+       call  pcre_exec() with a pattern pointing to an already freed stack, as
+       that will cause SEGFAULT. (Also, do not free a stack currently used  by
+       pcre_exec()  in  another  thread). You can also replace the stack for a
+       pattern at any time. You  can  even  free  the  previous  stack  before
+       assigning a replacement.
+
+       (5)  Should  I  allocate/free  a  stack every time before/after calling
+       pcre_exec()?
+
+       No, because this is too costly in  terms  of  resources.  However,  you
+       could  implement  some clever idea which release the stack if it is not
+       used in let's say two minutes. The JIT callback can help to achive this
+       without keeping a list of the currently JIT studied patterns.
+
+       (6)  OK, the stack is for long term memory allocation. But what happens
+       if a pattern causes stack overflow with a stack of 1M? Is that 1M  kept
+       until the stack is freed?
+
+       Especially  on embedded sytems, it might be a good idea to release mem-
+       ory sometimes without freeing the stack. There is no API  for  this  at
+       the  moment.  Probably a function call which returns with the currently
+       allocated memory for any stack and another which allows releasing  mem-
+       ory (shrinking the stack) would be a good idea if someone needs this.
+
+       (7) This is too much of a headache. Isn't there any better solution for
+       JIT stack handling?
+
+       No, thanks to Windows. If POSIX threads were used everywhere, we  could
+       throw out this complicated API.
+
+
+EXAMPLE CODE
+
+       This  is  a  single-threaded example that specifies a JIT stack without
+       using a callback.
+
+         int rc;
+         int ovector[30];
+         pcre *re;
+         pcre_extra *extra;
+         pcre_jit_stack *jit_stack;
+
+         re = pcre_compile(pattern, 0, &error, &erroffset, NULL);
+         /* Check for errors */
+         extra = pcre_study(re, PCRE_STUDY_JIT_COMPILE, &error);
+         jit_stack = pcre_jit_stack_alloc(32*1024, 512*1024);
+         /* Check for error (NULL) */
+         pcre_assign_jit_stack(extra, NULL, jit_stack);
+         rc = pcre_exec(re, extra, subject, length, 0, 0, ovector, 30);
+         /* Check results */
+         pcre_free(re);
+         pcre_free_study(extra);
+         pcre_jit_stack_free(jit_stack);
+
+
+SEE ALSO
+
+       pcreapi(3)
+
+
+AUTHOR
+
+       Philip Hazel (FAQ by Zoltan Herczeg)
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 04 May 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREPARTIAL(3)                                                  PCREPARTIAL(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PARTIAL MATCHING IN PCRE
+
+       In normal use of PCRE, if the subject string that is passed to a match-
+       ing function matches as far as it goes, but is too short to  match  the
+       entire pattern, PCRE_ERROR_NOMATCH is returned. There are circumstances
+       where it might be helpful to distinguish this case from other cases  in
+       which there is no match.
+
+       Consider, for example, an application where a human is required to type
+       in data for a field with specific formatting requirements.  An  example
+       might be a date in the form ddmmmyy, defined by this pattern:
+
+         ^\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d$
+
+       If the application sees the user's keystrokes one by one, and can check
+       that what has been typed so far is potentially valid,  it  is  able  to
+       raise  an  error  as  soon  as  a  mistake  is made, by beeping and not
+       reflecting the character that has been typed, for example. This immedi-
+       ate  feedback is likely to be a better user interface than a check that
+       is delayed until the entire string has been entered.  Partial  matching
+       can  also be useful when the subject string is very long and is not all
+       available at once.
+
+       PCRE supports partial matching by means of  the  PCRE_PARTIAL_SOFT  and
+       PCRE_PARTIAL_HARD  options,  which  can  be set when calling any of the
+       matching functions. For backwards compatibility, PCRE_PARTIAL is a syn-
+       onym  for  PCRE_PARTIAL_SOFT.  The essential difference between the two
+       options is whether or not a partial match is preferred to  an  alterna-
+       tive complete match, though the details differ between the two types of
+       matching function. If both options  are  set,  PCRE_PARTIAL_HARD  takes
+       precedence.
+
+       If  you  want to use partial matching with just-in-time optimized code,
+       you must call pcre_study() or pcre16_study() with one or both of  these
+       options:
+
+         PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+         PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+
+       PCRE_STUDY_JIT_COMPILE  should also be set if you are going to run non-
+       partial matches on the same pattern. If the appropriate JIT study  mode
+       has not been set for a match, the interpretive matching code is used.
+
+       Setting a partial matching option disables two of PCRE's standard opti-
+       mizations. PCRE remembers the last literal data unit in a pattern,  and
+       abandons  matching  immediately  if  it  is  not present in the subject
+       string. This optimization cannot be used  for  a  subject  string  that
+       might  match only partially. If the pattern was studied, PCRE knows the
+       minimum length of a matching string, and does not  bother  to  run  the
+       matching  function  on  shorter strings. This optimization is also dis-
+       abled for partial matching.
+
+
+PARTIAL MATCHING USING pcre_exec() OR pcre16_exec()
+
+       A partial match occurs during a call to  pcre_exec()  or  pcre16_exec()
+       when  the end of the subject string is reached successfully, but match-
+       ing cannot continue because more characters  are  needed.  However,  at
+       least one character in the subject must have been inspected. This char-
+       acter need not form part of the final matched string; lookbehind asser-
+       tions  and the \K escape sequence provide ways of inspecting characters
+       before the start of a matched substring. The requirement for inspecting
+       at  least  one  character  exists because an empty string can always be
+       matched; without such a restriction there would  always  be  a  partial
+       match of an empty string at the end of the subject.
+
+       If  there  are  at least two slots in the offsets vector when a partial
+       match is returned, the first slot is set to the offset of the  earliest
+       character that was inspected. For convenience, the second offset points
+       to the end of the subject so that a substring can easily be identified.
+
+       For the majority of patterns, the first offset identifies the start  of
+       the  partially matched string. However, for patterns that contain look-
+       behind assertions, or \K, or begin with \b or  \B,  earlier  characters
+       have been inspected while carrying out the match. For example:
+
+         /(?<=abc)123/
+
+       This pattern matches "123", but only if it is preceded by "abc". If the
+       subject string is "xyzabc12", the offsets after a partial match are for
+       the  substring  "abc12",  because  all  these  characters are needed if
+       another match is tried with extra characters added to the subject.
+
+       What happens when a partial match is identified depends on which of the
+       two partial matching options are set.
+
+   PCRE_PARTIAL_SOFT WITH pcre_exec() OR pcre16_exec()
+
+       If  PCRE_PARTIAL_SOFT  is set when pcre_exec() or pcre16_exec() identi-
+       fies a partial match, the partial match  is  remembered,  but  matching
+       continues  as  normal, and other alternatives in the pattern are tried.
+       If no complete match  can  be  found,  PCRE_ERROR_PARTIAL  is  returned
+       instead of PCRE_ERROR_NOMATCH.
+
+       This  option  is "soft" because it prefers a complete match over a par-
+       tial match.  All the various matching items in a pattern behave  as  if
+       the  subject string is potentially complete. For example, \z, \Z, and $
+       match at the end of the subject, as normal, and for \b and \B  the  end
+       of the subject is treated as a non-alphanumeric.
+
+       If  there  is more than one partial match, the first one that was found
+       provides the data that is returned. Consider this pattern:
+
+         /123\w+X|dogY/
+
+       If this is matched against the subject string "abc123dog", both  alter-
+       natives  fail  to  match,  but the end of the subject is reached during
+       matching, so PCRE_ERROR_PARTIAL is returned. The offsets are set  to  3
+       and  9, identifying "123dog" as the first partial match that was found.
+       (In this example, there are two partial matches, because "dog"  on  its
+       own partially matches the second alternative.)
+
+   PCRE_PARTIAL_HARD WITH pcre_exec() OR pcre16_exec()
+
+       If   PCRE_PARTIAL_HARD   is   set  for  pcre_exec()  or  pcre16_exec(),
+       PCRE_ERROR_PARTIAL is returned as soon as a  partial  match  is  found,
+       without continuing to search for possible complete matches. This option
+       is "hard" because it prefers an earlier partial match over a later com-
+       plete  match.  For  this reason, the assumption is made that the end of
+       the supplied subject string may not be the true end  of  the  available
+       data, and so, if \z, \Z, \b, \B, or $ are encountered at the end of the
+       subject, the result is PCRE_ERROR_PARTIAL, provided that at  least  one
+       character in the subject has been inspected.
+
+       Setting PCRE_PARTIAL_HARD also affects the way UTF-8 and UTF-16 subject
+       strings are checked for validity. Normally, an invalid sequence  causes
+       the  error  PCRE_ERROR_BADUTF8  or PCRE_ERROR_BADUTF16. However, in the
+       special case of a truncated  character  at  the  end  of  the  subject,
+       PCRE_ERROR_SHORTUTF8   or   PCRE_ERROR_SHORTUTF16   is   returned  when
+       PCRE_PARTIAL_HARD is set.
+
+   Comparing hard and soft partial matching
+
+       The difference between the two partial matching options can  be  illus-
+       trated by a pattern such as:
+
+         /dog(sbody)?/
+
+       This  matches either "dog" or "dogsbody", greedily (that is, it prefers
+       the longer string if possible). If it is  matched  against  the  string
+       "dog"  with  PCRE_PARTIAL_SOFT,  it  yields a complete match for "dog".
+       However, if PCRE_PARTIAL_HARD is set, the result is PCRE_ERROR_PARTIAL.
+       On  the  other hand, if the pattern is made ungreedy the result is dif-
+       ferent:
+
+         /dog(sbody)??/
+
+       In this case the result is always a  complete  match  because  that  is
+       found  first,  and  matching  never  continues after finding a complete
+       match. It might be easier to follow this explanation by thinking of the
+       two patterns like this:
+
+         /dog(sbody)?/    is the same as  /dogsbody|dog/
+         /dog(sbody)??/   is the same as  /dog|dogsbody/
+
+       The  second pattern will never match "dogsbody", because it will always
+       find the shorter match first.
+
+
+PARTIAL MATCHING USING pcre_dfa_exec() OR pcre16_dfa_exec()
+
+       The DFA functions move along the subject string character by character,
+       without  backtracking,  searching  for  all possible matches simultane-
+       ously. If the end of the subject is reached before the end of the  pat-
+       tern,  there is the possibility of a partial match, again provided that
+       at least one character has been inspected.
+
+       When PCRE_PARTIAL_SOFT is set, PCRE_ERROR_PARTIAL is returned  only  if
+       there  have  been  no complete matches. Otherwise, the complete matches
+       are returned.  However, if PCRE_PARTIAL_HARD is set,  a  partial  match
+       takes  precedence  over any complete matches. The portion of the string
+       that was inspected when the longest partial match was found is  set  as
+       the first matching string, provided there are at least two slots in the
+       offsets vector.
+
+       Because the DFA functions always search for all possible  matches,  and
+       there  is  no  difference between greedy and ungreedy repetition, their
+       behaviour is different  from  the  standard  functions  when  PCRE_PAR-
+       TIAL_HARD  is  set.  Consider  the  string  "dog"  matched  against the
+       ungreedy pattern shown above:
+
+         /dog(sbody)??/
+
+       Whereas the standard functions stop as soon as they find  the  complete
+       match  for  "dog",  the  DFA  functions also find the partial match for
+       "dogsbody", and so return that when PCRE_PARTIAL_HARD is set.
+
+
+PARTIAL MATCHING AND WORD BOUNDARIES
+
+       If a pattern ends with one of sequences \b or \B, which test  for  word
+       boundaries,  partial  matching with PCRE_PARTIAL_SOFT can give counter-
+       intuitive results. Consider this pattern:
+
+         /\bcat\b/
+
+       This matches "cat", provided there is a word boundary at either end. If
+       the subject string is "the cat", the comparison of the final "t" with a
+       following character cannot take place, so a  partial  match  is  found.
+       However,  normal  matching carries on, and \b matches at the end of the
+       subject when the last character is a letter, so  a  complete  match  is
+       found.   The   result,  therefore,  is  not  PCRE_ERROR_PARTIAL.  Using
+       PCRE_PARTIAL_HARD in this case does yield  PCRE_ERROR_PARTIAL,  because
+       then the partial match takes precedence.
+
+
+FORMERLY RESTRICTED PATTERNS
+
+       For releases of PCRE prior to 8.00, because of the way certain internal
+       optimizations  were  implemented  in  the  pcre_exec()  function,   the
+       PCRE_PARTIAL  option  (predecessor  of  PCRE_PARTIAL_SOFT) could not be
+       used with all patterns. From release 8.00 onwards, the restrictions  no
+       longer  apply,  and partial matching with can be requested for any pat-
+       tern.
+
+       Items that were formerly restricted were repeated single characters and
+       repeated  metasequences. If PCRE_PARTIAL was set for a pattern that did
+       not conform to the restrictions, pcre_exec() returned  the  error  code
+       PCRE_ERROR_BADPARTIAL  (-13).  This error code is no longer in use. The
+       PCRE_INFO_OKPARTIAL call to pcre_fullinfo() to find out if  a  compiled
+       pattern can be used for partial matching now always returns 1.
+
+
+EXAMPLE OF PARTIAL MATCHING USING PCRETEST
+
+       If  the  escape  sequence  \P  is  present in a pcretest data line, the
+       PCRE_PARTIAL_SOFT option is used for  the  match.  Here  is  a  run  of
+       pcretest that uses the date example quoted above:
+
+           re> /^\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d$/
+         data> 25jun04\P
+          0: 25jun04
+          1: jun
+         data> 25dec3\P
+         Partial match: 23dec3
+         data> 3ju\P
+         Partial match: 3ju
+         data> 3juj\P
+         No match
+         data> j\P
+         No match
+
+       The  first  data  string  is  matched completely, so pcretest shows the
+       matched substrings. The remaining four strings do not  match  the  com-
+       plete pattern, but the first two are partial matches. Similar output is
+       obtained if DFA matching is used.
+
+       If the escape sequence \P is present more than once in a pcretest  data
+       line, the PCRE_PARTIAL_HARD option is set for the match.
+
+
+MULTI-SEGMENT MATCHING WITH pcre_dfa_exec() OR pcre16_dfa_exec()
+
+       When  a  partial match has been found using a DFA matching function, it
+       is possible to continue the match by providing additional subject  data
+       and  calling  the function again with the same compiled regular expres-
+       sion, this time setting the PCRE_DFA_RESTART option. You must pass  the
+       same working space as before, because this is where details of the pre-
+       vious partial match are stored. Here  is  an  example  using  pcretest,
+       using  the  \R  escape  sequence to set the PCRE_DFA_RESTART option (\D
+       specifies the use of the DFA matching function):
+
+           re> /^\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d$/
+         data> 23ja\P\D
+         Partial match: 23ja
+         data> n05\R\D
+          0: n05
+
+       The first call has "23ja" as the subject, and requests  partial  match-
+       ing;  the  second  call  has  "n05"  as  the  subject for the continued
+       (restarted) match.  Notice that when the match is  complete,  only  the
+       last  part  is  shown;  PCRE  does not retain the previously partially-
+       matched string. It is up to the calling program to do that if it  needs
+       to.
+
+       You  can  set  the  PCRE_PARTIAL_SOFT or PCRE_PARTIAL_HARD options with
+       PCRE_DFA_RESTART to continue partial matching over  multiple  segments.
+       This  facility can be used to pass very long subject strings to the DFA
+       matching functions.
+
+
+MULTI-SEGMENT MATCHING WITH pcre_exec() OR pcre16_exec()
+
+       From release 8.00, the standard matching functions can also be used  to
+       do multi-segment matching. Unlike the DFA functions, it is not possible
+       to restart the previous match with a new segment of data. Instead,  new
+       data must be added to the previous subject string, and the entire match
+       re-run, starting from the point where the partial match occurred.  Ear-
+       lier data can be discarded.
+
+       It  is best to use PCRE_PARTIAL_HARD in this situation, because it does
+       not treat the end of a segment as the end of the subject when  matching
+       \z,  \Z,  \b,  \B,  and  $. Consider an unanchored pattern that matches
+       dates:
+
+           re> /\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d/
+         data> The date is 23ja\P\P
+         Partial match: 23ja
+
+       At this stage, an application could discard the text preceding  "23ja",
+       add  on  text  from  the  next  segment, and call the matching function
+       again. Unlike the DFA matching functions, the  entire  matching  string
+       must  always be available, and the complete matching process occurs for
+       each call, so more memory and more processing time is needed.
+
+       Note: If the pattern contains lookbehind assertions, or \K,  or  starts
+       with \b or \B, the string that is returned for a partial match includes
+       characters that precede the partially matched  string  itself,  because
+       these  must be retained when adding on more characters for a subsequent
+       matching attempt.  However, in some cases you may need to  retain  even
+       earlier characters, as discussed in the next section.
+
+
+ISSUES WITH MULTI-SEGMENT MATCHING
+
+       Certain types of pattern may give problems with multi-segment matching,
+       whichever matching function is used.
+
+       1. If the pattern contains a test for the beginning of a line, you need
+       to  pass  the  PCRE_NOTBOL  option when the subject string for any call
+       does start at the beginning of a line.  There  is  also  a  PCRE_NOTEOL
+       option, but in practice when doing multi-segment matching you should be
+       using PCRE_PARTIAL_HARD, which includes the effect of PCRE_NOTEOL.
+
+       2. Lookbehind assertions that have already been obeyed are catered  for
+       in the offsets that are returned for a partial match. However a lookbe-
+       hind assertion later in the pattern could require even earlier  charac-
+       ters   to  be  inspected.  You  can  handle  this  case  by  using  the
+       PCRE_INFO_MAXLOOKBEHIND    option    of    the    pcre_fullinfo()    or
+       pcre16_fullinfo() functions to obtain the length of the largest lookbe-
+       hind in the pattern. This length is given in characters, not bytes.  If
+       you  always  retain  at least that many characters before the partially
+       matched string, all should be well. (Of course, near the start  of  the
+       subject,  fewer  characters may be present; in that case all characters
+       should be retained.)
+
+       3. Because a partial match must always contain at least one  character,
+       what  might  be  considered a partial match of an empty string actually
+       gives a "no match" result. For example:
+
+           re> /c(?<=abc)x/
+         data> ab\P
+         No match
+
+       If the next segment begins "cx", a match should be found, but this will
+       only  happen  if characters from the previous segment are retained. For
+       this reason, a "no match" result  should  be  interpreted  as  "partial
+       match of an empty string" when the pattern contains lookbehinds.
+
+       4.  Matching  a subject string that is split into multiple segments may
+       not always produce exactly the same result as matching over one  single
+       long  string,  especially  when  PCRE_PARTIAL_SOFT is used. The section
+       "Partial Matching and Word Boundaries" above describes  an  issue  that
+       arises  if  the  pattern ends with \b or \B. Another kind of difference
+       may occur when there are multiple matching possibilities, because  (for
+       PCRE_PARTIAL_SOFT)  a partial match result is given only when there are
+       no completed matches. This means that as soon as the shortest match has
+       been  found,  continuation to a new subject segment is no longer possi-
+       ble. Consider again this pcretest example:
+
+           re> /dog(sbody)?/
+         data> dogsb\P
+          0: dog
+         data> do\P\D
+         Partial match: do
+         data> gsb\R\P\D
+          0: g
+         data> dogsbody\D
+          0: dogsbody
+          1: dog
+
+       The first data line passes the string "dogsb" to  a  standard  matching
+       function,  setting the PCRE_PARTIAL_SOFT option. Although the string is
+       a partial match for "dogsbody", the result is  not  PCRE_ERROR_PARTIAL,
+       because  the  shorter string "dog" is a complete match. Similarly, when
+       the subject is presented to a DFA matching function  in  several  parts
+       ("do"  and  "gsb"  being  the first two) the match stops when "dog" has
+       been found, and it is not possible to continue.  On the other hand,  if
+       "dogsbody"  is  presented  as  a single string, a DFA matching function
+       finds both matches.
+
+       Because of these problems, it is best  to  use  PCRE_PARTIAL_HARD  when
+       matching  multi-segment  data.  The  example above then behaves differ-
+       ently:
+
+           re> /dog(sbody)?/
+         data> dogsb\P\P
+         Partial match: dogsb
+         data> do\P\D
+         Partial match: do
+         data> gsb\R\P\P\D
+         Partial match: gsb
+
+       5. Patterns that contain alternatives at the top level which do not all
+       start  with  the  same  pattern  item  may  not  work  as expected when
+       PCRE_DFA_RESTART is used. For example, consider this pattern:
+
+         1234|3789
+
+       If the first part of the subject is "ABC123", a partial  match  of  the
+       first  alternative  is found at offset 3. There is no partial match for
+       the second alternative, because such a match does not start at the same
+       point  in  the  subject  string. Attempting to continue with the string
+       "7890" does not yield a match  because  only  those  alternatives  that
+       match  at  one  point in the subject are remembered. The problem arises
+       because the start of the second alternative matches  within  the  first
+       alternative.  There  is  no  problem with anchored patterns or patterns
+       such as:
+
+         1234|ABCD
+
+       where no string can be a partial match for both alternatives.  This  is
+       not  a  problem  if  a  standard matching function is used, because the
+       entire match has to be rerun each time:
+
+           re> /1234|3789/
+         data> ABC123\P\P
+         Partial match: 123
+         data> 1237890
+          0: 3789
+
+       Of course, instead of using PCRE_DFA_RESTART, the same technique of re-
+       running  the  entire match can also be used with the DFA matching func-
+       tions. Another possibility is to work with two buffers.  If  a  partial
+       match  at  offset  n in the first buffer is followed by "no match" when
+       PCRE_DFA_RESTART is used on the second buffer, you can then try  a  new
+       match starting at offset n+1 in the first buffer.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 24 February 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREPRECOMPILE(3)                                            PCREPRECOMPILE(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+SAVING AND RE-USING PRECOMPILED PCRE PATTERNS
+
+       If  you  are running an application that uses a large number of regular
+       expression patterns, it may be useful to store them  in  a  precompiled
+       form  instead  of  having to compile them every time the application is
+       run.  If you are not  using  any  private  character  tables  (see  the
+       pcre_maketables()  documentation),  this is relatively straightforward.
+       If you are using private tables, it is a little bit  more  complicated.
+       However,  if you are using the just-in-time optimization feature, it is
+       not possible to save and reload the JIT data.
+
+       If you save compiled patterns to a file, you can copy them to a differ-
+       ent host and run them there. If the two hosts have different endianness
+       (byte order), you should run the  pcre[16]_pattern_to_host_byte_order()
+       function on the new host before trying to match the pattern. The match-
+       ing functions return PCRE_ERROR_BADENDIANNESS if they detect a  pattern
+       with the wrong endianness.
+
+       Compiling  regular  expressions with one version of PCRE for use with a
+       different version is not guaranteed to work and may cause crashes,  and
+       saving  and  restoring  a  compiled  pattern loses any JIT optimization
+       data.
+
+
+SAVING A COMPILED PATTERN
+
+       The value returned by pcre[16]_compile() points to a  single  block  of
+       memory  that  holds  the  compiled pattern and associated data. You can
+       find the length of this block in bytes by  calling  pcre[16]_fullinfo()
+       with  an  argument of PCRE_INFO_SIZE. You can then save the data in any
+       appropriate manner. Here is sample code for the 8-bit library that com-
+       piles  a  pattern and writes it to a file. It assumes that the variable
+       fd refers to a file that is open for output:
+
+         int erroroffset, rc, size;
+         char *error;
+         pcre *re;
+
+         re = pcre_compile("my pattern", 0, &error, &erroroffset, NULL);
+         if (re == NULL) { ... handle errors ... }
+         rc = pcre_fullinfo(re, NULL, PCRE_INFO_SIZE, &size);
+         if (rc < 0) { ... handle errors ... }
+         rc = fwrite(re, 1, size, fd);
+         if (rc != size) { ... handle errors ... }
+
+       In this example, the bytes  that  comprise  the  compiled  pattern  are
+       copied  exactly.  Note that this is binary data that may contain any of
+       the 256 possible byte  values.  On  systems  that  make  a  distinction
+       between binary and non-binary data, be sure that the file is opened for
+       binary output.
+
+       If you want to write more than one pattern to a file, you will have  to
+       devise  a  way of separating them. For binary data, preceding each pat-
+       tern with its length is probably  the  most  straightforward  approach.
+       Another  possibility is to write out the data in hexadecimal instead of
+       binary, one pattern to a line.
+
+       Saving compiled patterns in a file is only one possible way of  storing
+       them  for later use. They could equally well be saved in a database, or
+       in the memory of some daemon process that passes them  via  sockets  to
+       the processes that want them.
+
+       If the pattern has been studied, it is also possible to save the normal
+       study data in a similar way to the compiled pattern itself. However, if
+       the PCRE_STUDY_JIT_COMPILE was used, the just-in-time data that is cre-
+       ated cannot be saved because it is too dependent on the  current  envi-
+       ronment.    When    studying    generates    additional    information,
+       pcre[16]_study() returns a pointer to a pcre[16]_extra data block.  Its
+       format  is  defined in the section on matching a pattern in the pcreapi
+       documentation. The study_data field points to the  binary  study  data,
+       and  this  is what you must save (not the pcre[16]_extra block itself).
+       The  length  of  the  study   data   can   be   obtained   by   calling
+       pcre[16]_fullinfo()  with  an argument of PCRE_INFO_STUDYSIZE. Remember
+       to check that pcre[16]_study() did return a non-NULL value before  try-
+       ing to save the study data.
+
+
+RE-USING A PRECOMPILED PATTERN
+
+       Re-using  a  precompiled pattern is straightforward. Having reloaded it
+       into main memory, called pcre[16]_pattern_to_host_byte_order() if  nec-
+       essary,  you pass its pointer to pcre[16]_exec() or pcre[16]_dfa_exec()
+       in the usual way.
+
+       However, if you passed a pointer to custom character  tables  when  the
+       pattern was compiled (the tableptr argument of pcre[16]_compile()), you
+       must   now   pass   a   similar   pointer   to    pcre[16]_exec()    or
+       pcre[16]_dfa_exec(),  because the value saved with the compiled pattern
+       will obviously be nonsense. A field in a pcre[16]_extra() block is used
+       to pass this data, as described in the section on matching a pattern in
+       the pcreapi documentation.
+
+       If you did not provide custom character tables  when  the  pattern  was
+       compiled, the pointer in the compiled pattern is NULL, which causes the
+       matching functions to use PCRE's internal tables. Thus, you do not need
+       to take any special action at run time in this case.
+
+       If  you  saved study data with the compiled pattern, you need to create
+       your own pcre[16]_extra data block and  set  the  study_data  field  to
+       point   to   the   reloaded   study   data.   You  must  also  set  the
+       PCRE_EXTRA_STUDY_DATA bit in the flags field  to  indicate  that  study
+       data  is  present.  Then  pass the pcre[16]_extra block to the matching
+       function in the usual way. If the pattern was studied for  just-in-time
+       optimization,  that  data  cannot  be  saved,  and  so  is  lost  by  a
+       save/restore cycle.
+
+
+COMPATIBILITY WITH DIFFERENT PCRE RELEASES
+
+       In general, it is safest to  recompile  all  saved  patterns  when  you
+       update  to  a new PCRE release, though not all updates actually require
+       this.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 10 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREPERFORM(3)                                                  PCREPERFORM(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE PERFORMANCE
+
+       Two  aspects  of performance are discussed below: memory usage and pro-
+       cessing time. The way you express your pattern as a regular  expression
+       can affect both of them.
+
+
+COMPILED PATTERN MEMORY USAGE
+
+       Patterns  are compiled by PCRE into a reasonably efficient interpretive
+       code, so that most simple patterns do not  use  much  memory.  However,
+       there  is  one case where the memory usage of a compiled pattern can be
+       unexpectedly large. If a parenthesized subpattern has a quantifier with
+       a minimum greater than 1 and/or a limited maximum, the whole subpattern
+       is repeated in the compiled code. For example, the pattern
+
+         (abc|def){2,4}
+
+       is compiled as if it were
+
+         (abc|def)(abc|def)((abc|def)(abc|def)?)?
+
+       (Technical aside: It is done this way so that backtrack  points  within
+       each of the repetitions can be independently maintained.)
+
+       For  regular expressions whose quantifiers use only small numbers, this
+       is not usually a problem. However, if the numbers are large,  and  par-
+       ticularly  if  such repetitions are nested, the memory usage can become
+       an embarrassment. For example, the very simple pattern
+
+         ((ab){1,1000}c){1,3}
+
+       uses 51K bytes when compiled using the 8-bit library. When PCRE is com-
+       piled  with  its  default  internal pointer size of two bytes, the size
+       limit on a compiled pattern is 64K data units, and this is reached with
+       the  above  pattern  if  the outer repetition is increased from 3 to 4.
+       PCRE can be compiled to use larger internal pointers  and  thus  handle
+       larger  compiled patterns, but it is better to try to rewrite your pat-
+       tern to use less memory if you can.
+
+       One way of reducing the memory usage for such patterns is to  make  use
+       of PCRE's "subroutine" facility. Re-writing the above pattern as
+
+         ((ab)(?2){0,999}c)(?1){0,2}
+
+       reduces the memory requirements to 18K, and indeed it remains under 20K
+       even with the outer repetition increased to 100. However, this  pattern
+       is  not  exactly equivalent, because the "subroutine" calls are treated
+       as atomic groups into which there can be no backtracking if there is  a
+       subsequent  matching  failure.  Therefore,  PCRE cannot do this kind of
+       rewriting automatically.  Furthermore, there is a  noticeable  loss  of
+       speed  when executing the modified pattern. Nevertheless, if the atomic
+       grouping is not a problem and the loss of  speed  is  acceptable,  this
+       kind  of  rewriting will allow you to process patterns that PCRE cannot
+       otherwise handle.
+
+
+STACK USAGE AT RUN TIME
+
+       When pcre_exec() or pcre16_exec() is used for matching,  certain  kinds
+       of  pattern  can cause it to use large amounts of the process stack. In
+       some environments the default process stack is quite small, and  if  it
+       runs  out  the result is often SIGSEGV. This issue is probably the most
+       frequently raised problem with PCRE. Rewriting your pattern  can  often
+       help. The pcrestack documentation discusses this issue in detail.
+
+
+PROCESSING TIME
+
+       Certain  items  in regular expression patterns are processed more effi-
+       ciently than others. It is more efficient to use a character class like
+       [aeiou]   than   a   set   of  single-character  alternatives  such  as
+       (a|e|i|o|u). In general, the simplest construction  that  provides  the
+       required behaviour is usually the most efficient. Jeffrey Friedl's book
+       contains a lot of useful general discussion  about  optimizing  regular
+       expressions  for  efficient  performance.  This document contains a few
+       observations about PCRE.
+
+       Using Unicode character properties (the \p,  \P,  and  \X  escapes)  is
+       slow,  because PCRE has to scan a structure that contains data for over
+       fifteen thousand characters whenever it needs a  character's  property.
+       If  you  can  find  an  alternative pattern that does not use character
+       properties, it will probably be faster.
+
+       By default, the escape sequences \b, \d, \s,  and  \w,  and  the  POSIX
+       character  classes  such  as  [:alpha:]  do not use Unicode properties,
+       partly for backwards compatibility, and partly for performance reasons.
+       However,  you can set PCRE_UCP if you want Unicode character properties
+       to be used. This can double the matching time for  items  such  as  \d,
+       when matched with a traditional matching function; the performance loss
+       is less with a DFA matching function, and in both cases  there  is  not
+       much difference for \b.
+
+       When  a  pattern  begins  with .* not in parentheses, or in parentheses
+       that are not the subject of a backreference, and the PCRE_DOTALL option
+       is  set, the pattern is implicitly anchored by PCRE, since it can match
+       only at the start of a subject string. However, if PCRE_DOTALL  is  not
+       set,  PCRE  cannot  make this optimization, because the . metacharacter
+       does not then match a newline, and if the subject string contains  new-
+       lines,  the  pattern may match from the character immediately following
+       one of them instead of from the very start. For example, the pattern
+
+         .*second
+
+       matches the subject "first\nand second" (where \n stands for a  newline
+       character),  with the match starting at the seventh character. In order
+       to do this, PCRE has to retry the match starting after every newline in
+       the subject.
+
+       If  you  are using such a pattern with subject strings that do not con-
+       tain newlines, the best performance is obtained by setting PCRE_DOTALL,
+       or  starting  the pattern with ^.* or ^.*? to indicate explicit anchor-
+       ing. That saves PCRE from having to scan along the subject looking  for
+       a newline to restart at.
+
+       Beware  of  patterns  that contain nested indefinite repeats. These can
+       take a long time to run when applied to a string that does  not  match.
+       Consider the pattern fragment
+
+         ^(a+)*
+
+       This  can  match "aaaa" in 16 different ways, and this number increases
+       very rapidly as the string gets longer. (The * repeat can match  0,  1,
+       2,  3, or 4 times, and for each of those cases other than 0 or 4, the +
+       repeats can match different numbers of times.) When  the  remainder  of
+       the pattern is such that the entire match is going to fail, PCRE has in
+       principle to try  every  possible  variation,  and  this  can  take  an
+       extremely long time, even for relatively short strings.
+
+       An optimization catches some of the more simple cases such as
+
+         (a+)*b
+
+       where  a  literal  character  follows. Before embarking on the standard
+       matching procedure, PCRE checks that there is a "b" later in  the  sub-
+       ject  string, and if there is not, it fails the match immediately. How-
+       ever, when there is no following literal this  optimization  cannot  be
+       used. You can see the difference by comparing the behaviour of
+
+         (a+)*\d
+
+       with  the  pattern  above.  The former gives a failure almost instantly
+       when applied to a whole line of  "a"  characters,  whereas  the  latter
+       takes an appreciable time with strings longer than about 20 characters.
+
+       In many cases, the solution to this kind of performance issue is to use
+       an atomic group or a possessive quantifier.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 09 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCREPOSIX(3)                                                      PCREPOSIX(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions.
+
+
+SYNOPSIS OF POSIX API
+
+       #include <pcreposix.h>
+
+       int regcomp(regex_t *preg, const char *pattern,
+            int cflags);
+
+       int regexec(regex_t *preg, const char *string,
+            size_t nmatch, regmatch_t pmatch[], int eflags);
+
+       size_t regerror(int errcode, const regex_t *preg,
+            char *errbuf, size_t errbuf_size);
+
+       void regfree(regex_t *preg);
+
+
+DESCRIPTION
+
+       This  set  of functions provides a POSIX-style API for the PCRE regular
+       expression 8-bit library. See the pcreapi documentation for a  descrip-
+       tion  of  PCRE's native API, which contains much additional functional-
+       ity. There is no POSIX-style wrapper for PCRE's 16-bit library.
+
+       The functions described here are just wrapper functions that ultimately
+       call  the  PCRE  native  API.  Their  prototypes  are  defined  in  the
+       pcreposix.h header file, and on Unix  systems  the  library  itself  is
+       called  pcreposix.a,  so  can  be accessed by adding -lpcreposix to the
+       command for linking an application that uses them.  Because  the  POSIX
+       functions call the native ones, it is also necessary to add -lpcre.
+
+       I  have implemented only those POSIX option bits that can be reasonably
+       mapped to PCRE native options. In addition, the option REG_EXTENDED  is
+       defined  with  the  value  zero. This has no effect, but since programs
+       that are written to the POSIX interface often use  it,  this  makes  it
+       easier  to  slot  in PCRE as a replacement library. Other POSIX options
+       are not even defined.
+
+       There are also some other options that are not defined by POSIX.  These
+       have been added at the request of users who want to make use of certain
+       PCRE-specific features via the POSIX calling interface.
+
+       When PCRE is called via these functions, it is only  the  API  that  is
+       POSIX-like  in  style.  The syntax and semantics of the regular expres-
+       sions themselves are still those of Perl, subject  to  the  setting  of
+       various  PCRE  options, as described below. "POSIX-like in style" means
+       that the API approximates to the POSIX  definition;  it  is  not  fully
+       POSIX-compatible,  and  in  multi-byte  encoding domains it is probably
+       even less compatible.
+
+       The header for these functions is supplied as pcreposix.h to avoid  any
+       potential  clash  with  other  POSIX  libraries.  It can, of course, be
+       renamed or aliased as regex.h, which is the "correct" name. It provides
+       two  structure  types,  regex_t  for  compiled internal forms, and reg-
+       match_t for returning captured substrings. It also  defines  some  con-
+       stants  whose  names  start  with  "REG_";  these  are used for setting
+       options and identifying error codes.
+
+
+COMPILING A PATTERN
+
+       The function regcomp() is called to compile a pattern into an  internal
+       form.  The  pattern  is  a C string terminated by a binary zero, and is
+       passed in the argument pattern. The preg argument is  a  pointer  to  a
+       regex_t  structure that is used as a base for storing information about
+       the compiled regular expression.
+
+       The argument cflags is either zero, or contains one or more of the bits
+       defined by the following macros:
+
+         REG_DOTALL
+
+       The PCRE_DOTALL option is set when the regular expression is passed for
+       compilation to the native function. Note that REG_DOTALL is not part of
+       the POSIX standard.
+
+         REG_ICASE
+
+       The  PCRE_CASELESS  option is set when the regular expression is passed
+       for compilation to the native function.
+
+         REG_NEWLINE
+
+       The PCRE_MULTILINE option is set when the regular expression is  passed
+       for  compilation  to the native function. Note that this does not mimic
+       the defined POSIX behaviour for REG_NEWLINE  (see  the  following  sec-
+       tion).
+
+         REG_NOSUB
+
+       The  PCRE_NO_AUTO_CAPTURE  option is set when the regular expression is
+       passed for compilation to the native function. In addition, when a pat-
+       tern  that is compiled with this flag is passed to regexec() for match-
+       ing, the nmatch and pmatch  arguments  are  ignored,  and  no  captured
+       strings are returned.
+
+         REG_UCP
+
+       The  PCRE_UCP  option  is set when the regular expression is passed for
+       compilation to the native function. This causes  PCRE  to  use  Unicode
+       properties  when  matchine  \d,  \w,  etc., instead of just recognizing
+       ASCII values. Note that REG_UTF8 is not part of the POSIX standard.
+
+         REG_UNGREEDY
+
+       The PCRE_UNGREEDY option is set when the regular expression  is  passed
+       for  compilation  to the native function. Note that REG_UNGREEDY is not
+       part of the POSIX standard.
+
+         REG_UTF8
+
+       The PCRE_UTF8 option is set when the regular expression is  passed  for
+       compilation  to the native function. This causes the pattern itself and
+       all data strings used for matching it to be treated as  UTF-8  strings.
+       Note that REG_UTF8 is not part of the POSIX standard.
+
+       In  the  absence  of  these  flags, no options are passed to the native
+       function.  This means the the  regex  is  compiled  with  PCRE  default
+       semantics.  In particular, the way it handles newline characters in the
+       subject string is the Perl way, not the POSIX way.  Note  that  setting
+       PCRE_MULTILINE  has only some of the effects specified for REG_NEWLINE.
+       It does not affect the way newlines are matched by . (they are not)  or
+       by a negative class such as [^a] (they are).
+
+       The  yield of regcomp() is zero on success, and non-zero otherwise. The
+       preg structure is filled in on success, and one member of the structure
+       is  public: re_nsub contains the number of capturing subpatterns in the
+       regular expression. Various error codes are defined in the header file.
+
+       NOTE: If the yield of regcomp() is non-zero, you must  not  attempt  to
+       use the contents of the preg structure. If, for example, you pass it to
+       regexec(), the result is undefined and your program is likely to crash.
+
+
+MATCHING NEWLINE CHARACTERS
+
+       This area is not simple, because POSIX and Perl take different views of
+       things.   It  is  not possible to get PCRE to obey POSIX semantics, but
+       then PCRE was never intended to be a POSIX engine. The following  table
+       lists  the  different  possibilities for matching newline characters in
+       PCRE:
+
+                                 Default   Change with
+
+         . matches newline          no     PCRE_DOTALL
+         newline matches [^a]       yes    not changeable
+         $ matches \n at end        yes    PCRE_DOLLARENDONLY
+         $ matches \n in middle     no     PCRE_MULTILINE
+         ^ matches \n in middle     no     PCRE_MULTILINE
+
+       This is the equivalent table for POSIX:
+
+                                 Default   Change with
+
+         . matches newline          yes    REG_NEWLINE
+         newline matches [^a]       yes    REG_NEWLINE
+         $ matches \n at end        no     REG_NEWLINE
+         $ matches \n in middle     no     REG_NEWLINE
+         ^ matches \n in middle     no     REG_NEWLINE
+
+       PCRE's behaviour is the same as Perl's, except that there is no equiva-
+       lent  for  PCRE_DOLLAR_ENDONLY in Perl. In both PCRE and Perl, there is
+       no way to stop newline from matching [^a].
+
+       The  default  POSIX  newline  handling  can  be  obtained  by   setting
+       PCRE_DOTALL  and  PCRE_DOLLAR_ENDONLY, but there is no way to make PCRE
+       behave exactly as for the REG_NEWLINE action.
+
+
+MATCHING A PATTERN
+
+       The function regexec() is called  to  match  a  compiled  pattern  preg
+       against  a  given string, which is by default terminated by a zero byte
+       (but see REG_STARTEND below), subject to the options in  eflags.  These
+       can be:
+
+         REG_NOTBOL
+
+       The PCRE_NOTBOL option is set when calling the underlying PCRE matching
+       function.
+
+         REG_NOTEMPTY
+
+       The PCRE_NOTEMPTY option is set when calling the underlying PCRE match-
+       ing function. Note that REG_NOTEMPTY is not part of the POSIX standard.
+       However, setting this option can give more POSIX-like behaviour in some
+       situations.
+
+         REG_NOTEOL
+
+       The PCRE_NOTEOL option is set when calling the underlying PCRE matching
+       function.
+
+         REG_STARTEND
+
+       The string is considered to start at string +  pmatch[0].rm_so  and  to
+       have  a terminating NUL located at string + pmatch[0].rm_eo (there need
+       not actually be a NUL at that location), regardless  of  the  value  of
+       nmatch.  This  is a BSD extension, compatible with but not specified by
+       IEEE Standard 1003.2 (POSIX.2), and should  be  used  with  caution  in
+       software intended to be portable to other systems. Note that a non-zero
+       rm_so does not imply REG_NOTBOL; REG_STARTEND affects only the location
+       of the string, not how it is matched.
+
+       If  the pattern was compiled with the REG_NOSUB flag, no data about any
+       matched strings  is  returned.  The  nmatch  and  pmatch  arguments  of
+       regexec() are ignored.
+
+       If the value of nmatch is zero, or if the value pmatch is NULL, no data
+       about any matched strings is returned.
+
+       Otherwise,the portion of the string that was matched, and also any cap-
+       tured substrings, are returned via the pmatch argument, which points to
+       an array of nmatch structures of type regmatch_t, containing  the  mem-
+       bers  rm_so  and rm_eo. These contain the offset to the first character
+       of each substring and the offset to the first character after  the  end
+       of  each substring, respectively. The 0th element of the vector relates
+       to the entire portion of string that was matched;  subsequent  elements
+       relate  to  the capturing subpatterns of the regular expression. Unused
+       entries in the array have both structure members set to -1.
+
+       A successful match yields  a  zero  return;  various  error  codes  are
+       defined  in  the  header  file,  of which REG_NOMATCH is the "expected"
+       failure code.
+
+
+ERROR MESSAGES
+
+       The regerror() function maps a non-zero errorcode from either regcomp()
+       or  regexec()  to  a  printable message. If preg is not NULL, the error
+       should have arisen from the use of that structure. A message terminated
+       by  a  binary  zero  is  placed  in  errbuf. The length of the message,
+       including the zero, is limited to errbuf_size. The yield of  the  func-
+       tion is the size of buffer needed to hold the whole message.
+
+
+MEMORY USAGE
+
+       Compiling  a regular expression causes memory to be allocated and asso-
+       ciated with the preg structure. The function regfree() frees  all  such
+       memory,  after  which  preg may no longer be used as a compiled expres-
+       sion.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 09 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCRECPP(3)                                                          PCRECPP(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions.
+
+
+SYNOPSIS OF C++ WRAPPER
+
+       #include <pcrecpp.h>
+
+
+DESCRIPTION
+
+       The  C++  wrapper  for PCRE was provided by Google Inc. Some additional
+       functionality was added by Giuseppe Maxia. This brief man page was con-
+       structed  from  the  notes  in the pcrecpp.h file, which should be con-
+       sulted for further details. Note that the C++ wrapper supports only the
+       original 8-bit PCRE library. There is no 16-bit support at present.
+
+
+MATCHING INTERFACE
+
+       The  "FullMatch" operation checks that supplied text matches a supplied
+       pattern exactly. If pointer arguments are supplied, it  copies  matched
+       sub-strings that match sub-patterns into them.
+
+         Example: successful match
+            pcrecpp::RE re("h.*o");
+            re.FullMatch("hello");
+
+         Example: unsuccessful match (requires full match):
+            pcrecpp::RE re("e");
+            !re.FullMatch("hello");
+
+         Example: creating a temporary RE object:
+            pcrecpp::RE("h.*o").FullMatch("hello");
+
+       You  can pass in a "const char*" or a "string" for "text". The examples
+       below tend to use a const char*. You can, as in the different  examples
+       above,  store the RE object explicitly in a variable or use a temporary
+       RE object. The examples below use one mode or  the  other  arbitrarily.
+       Either could correctly be used for any of these examples.
+
+       You must supply extra pointer arguments to extract matched subpieces.
+
+         Example: extracts "ruby" into "s" and 1234 into "i"
+            int i;
+            string s;
+            pcrecpp::RE re("(\\w+):(\\d+)");
+            re.FullMatch("ruby:1234", &s, &i);
+
+         Example: does not try to extract any extra sub-patterns
+            re.FullMatch("ruby:1234", &s);
+
+         Example: does not try to extract into NULL
+            re.FullMatch("ruby:1234", NULL, &i);
+
+         Example: integer overflow causes failure
+            !re.FullMatch("ruby:1234567891234", NULL, &i);
+
+         Example: fails because there aren't enough sub-patterns:
+            !pcrecpp::RE("\\w+:\\d+").FullMatch("ruby:1234", &s);
+
+         Example: fails because string cannot be stored in integer
+            !pcrecpp::RE("(.*)").FullMatch("ruby", &i);
+
+       The  provided  pointer  arguments can be pointers to any scalar numeric
+       type, or one of:
+
+          string        (matched piece is copied to string)
+          StringPiece   (StringPiece is mutated to point to matched piece)
+          T             (where "bool T::ParseFrom(const char*, int)" exists)
+          NULL          (the corresponding matched sub-pattern is not copied)
+
+       The function returns true iff all of the following conditions are  sat-
+       isfied:
+
+         a. "text" matches "pattern" exactly;
+
+         b. The number of matched sub-patterns is >= number of supplied
+            pointers;
+
+         c. The "i"th argument has a suitable type for holding the
+            string captured as the "i"th sub-pattern. If you pass in
+            void * NULL for the "i"th argument, or a non-void * NULL
+            of the correct type, or pass fewer arguments than the
+            number of sub-patterns, "i"th captured sub-pattern is
+            ignored.
+
+       CAVEAT:  An  optional  sub-pattern  that  does not exist in the matched
+       string is assigned the empty  string.  Therefore,  the  following  will
+       return false (because the empty string is not a valid number):
+
+          int number;
+          pcrecpp::RE::FullMatch("abc", "[a-z]+(\\d+)?", &number);
+
+       The  matching interface supports at most 16 arguments per call.  If you
+       need   more,   consider    using    the    more    general    interface
+       pcrecpp::RE::DoMatch. See pcrecpp.h for the signature for DoMatch.
+
+       NOTE:  Do not use no_arg, which is used internally to mark the end of a
+       list of optional arguments, as a placeholder for missing arguments,  as
+       this can lead to segfaults.
+
+
+QUOTING METACHARACTERS
+
+       You  can use the "QuoteMeta" operation to insert backslashes before all
+       potentially meaningful characters in a  string.  The  returned  string,
+       used as a regular expression, will exactly match the original string.
+
+         Example:
+            string quoted = RE::QuoteMeta(unquoted);
+
+       Note  that  it's  legal to escape a character even if it has no special
+       meaning in a regular expression -- so this function  does  that.  (This
+       also  makes  it  identical  to  the perl function of the same name; see
+       "perldoc   -f   quotemeta".)    For   example,    "1.5-2.0?"    becomes
+       "1\.5\-2\.0\?".
+
+
+PARTIAL MATCHES
+
+       You  can  use the "PartialMatch" operation when you want the pattern to
+       match any substring of the text.
+
+         Example: simple search for a string:
+            pcrecpp::RE("ell").PartialMatch("hello");
+
+         Example: find first number in a string:
+            int number;
+            pcrecpp::RE re("(\\d+)");
+            re.PartialMatch("x*100 + 20", &number);
+            assert(number == 100);
+
+
+UTF-8 AND THE MATCHING INTERFACE
+
+       By default, pattern and text are plain text, one  byte  per  character.
+       The  UTF8  flag,  passed  to  the  constructor, causes both pattern and
+       string to be treated as UTF-8 text, still a byte stream but potentially
+       multiple  bytes  per character. In practice, the text is likelier to be
+       UTF-8 than the pattern, but the match returned may depend on  the  UTF8
+       flag,  so  always use it when matching UTF8 text. For example, "." will
+       match one byte normally but with UTF8 set may match up to  three  bytes
+       of a multi-byte character.
+
+         Example:
+            pcrecpp::RE_Options options;
+            options.set_utf8();
+            pcrecpp::RE re(utf8_pattern, options);
+            re.FullMatch(utf8_string);
+
+         Example: using the convenience function UTF8():
+            pcrecpp::RE re(utf8_pattern, pcrecpp::UTF8());
+            re.FullMatch(utf8_string);
+
+       NOTE: The UTF8 flag is ignored if pcre was not configured with the
+             --enable-utf8 flag.
+
+
+PASSING MODIFIERS TO THE REGULAR EXPRESSION ENGINE
+
+       PCRE  defines  some  modifiers  to  change  the behavior of the regular
+       expression  engine.  The  C++  wrapper  defines  an  auxiliary   class,
+       RE_Options,  as  a  vehicle  to pass such modifiers to a RE class. Cur-
+       rently, the following modifiers are supported:
+
+          modifier              description               Perl corresponding
+
+          PCRE_CASELESS         case insensitive match      /i
+          PCRE_MULTILINE        multiple lines match        /m
+          PCRE_DOTALL           dot matches newlines        /s
+          PCRE_DOLLAR_ENDONLY   $ matches only at end       N/A
+          PCRE_EXTRA            strict escape parsing       N/A
+          PCRE_EXTENDED         ignore white spaces         /x
+          PCRE_UTF8             handles UTF8 chars          built-in
+          PCRE_UNGREEDY         reverses * and *?           N/A
+          PCRE_NO_AUTO_CAPTURE  disables capturing parens   N/A (*)
+
+       (*) Both Perl and PCRE allow non capturing parentheses by means of  the
+       "?:"  modifier  within the pattern itself. e.g. (?:ab|cd) does not cap-
+       ture, while (ab|cd) does.
+
+       For a full account on how each modifier works, please  check  the  PCRE
+       API reference page.
+
+       For  each  modifier,  there are two member functions whose name is made
+       out of the modifier in  lowercase,  without  the  "PCRE_"  prefix.  For
+       instance, PCRE_CASELESS is handled by
+
+         bool caseless()
+
+       which returns true if the modifier is set, and
+
+         RE_Options & set_caseless(bool)
+
+       which sets or unsets the modifier. Moreover, PCRE_EXTRA_MATCH_LIMIT can
+       be accessed through  the  set_match_limit()  and  match_limit()  member
+       functions.  Setting match_limit to a non-zero value will limit the exe-
+       cution of pcre to keep it from doing bad things like blowing the  stack
+       or  taking  an  eternity  to  return  a result. A value of 5000 is good
+       enough to stop stack blowup in a 2MB thread stack. Setting  match_limit
+       to   zero   disables   match  limiting.  Alternatively,  you  can  call
+       match_limit_recursion() which uses PCRE_EXTRA_MATCH_LIMIT_RECURSION  to
+       limit  how  much  PCRE  recurses.  match_limit()  limits  the number of
+       matches PCRE does; match_limit_recursion() limits the depth of internal
+       recursion, and therefore the amount of stack that is used.
+
+       Normally,  to  pass  one or more modifiers to a RE class, you declare a
+       RE_Options object, set the appropriate options, and pass this object to
+       a RE constructor. Example:
+
+          RE_Options opt;
+          opt.set_caseless(true);
+          if (RE("HELLO", opt).PartialMatch("hello world")) ...
+
+       RE_options has two constructors. The default constructor takes no argu-
+       ments and creates a set of flags that are off by default. The  optional
+       parameter  option_flags is to facilitate transfer of legacy code from C
+       programs.  This lets you do
+
+          RE(pattern,
+            RE_Options(PCRE_CASELESS|PCRE_MULTILINE)).PartialMatch(str);
+
+       However, new code is better off doing
+
+          RE(pattern,
+            RE_Options().set_caseless(true).set_multiline(true))
+              .PartialMatch(str);
+
+       If you are going to pass one of the most used modifiers, there are some
+       convenience functions that return a RE_Options class with the appropri-
+       ate modifier already set: CASELESS(),  UTF8(),  MULTILINE(),  DOTALL(),
+       and EXTENDED().
+
+       If  you  need  to set several options at once, and you don't want to go
+       through the pains of declaring a RE_Options object and setting  several
+       options,  there  is a parallel method that give you such ability on the
+       fly. You can concatenate several set_xxxxx()  member  functions,  since
+       each  of  them returns a reference to its class object. For example, to
+       pass PCRE_CASELESS, PCRE_EXTENDED, and PCRE_MULTILINE to a RE with  one
+       statement, you may write:
+
+          RE(" ^ xyz \\s+ .* blah$",
+            RE_Options()
+              .set_caseless(true)
+              .set_extended(true)
+              .set_multiline(true)).PartialMatch(sometext);
+
+
+SCANNING TEXT INCREMENTALLY
+
+       The  "Consume"  operation may be useful if you want to repeatedly match
+       regular expressions at the front of a string and skip over them as they
+       match.  This requires use of the "StringPiece" type, which represents a
+       sub-range of a real string. Like RE,  StringPiece  is  defined  in  the
+       pcrecpp namespace.
+
+         Example: read lines of the form "var = value" from a string.
+            string contents = ...;                 // Fill string somehow
+            pcrecpp::StringPiece input(contents);  // Wrap in a StringPiece
+
+            string var;
+            int value;
+            pcrecpp::RE re("(\\w+) = (\\d+)\n");
+            while (re.Consume(&input, &var, &value)) {
+              ...;
+            }
+
+       Each  successful  call  to  "Consume"  will  set  "var/value", and also
+       advance "input" so it points past the matched text.
+
+       The "FindAndConsume" operation is similar to  "Consume"  but  does  not
+       anchor  your  match  at  the  beginning of the string. For example, you
+       could extract all words from a string by repeatedly calling
+
+         pcrecpp::RE("(\\w+)").FindAndConsume(&input, &word)
+
+
+PARSING HEX/OCTAL/C-RADIX NUMBERS
+
+       By default, if you pass a pointer to a numeric value, the corresponding
+       text  is  interpreted  as  a  base-10  number. You can instead wrap the
+       pointer with a call to one of the operators Hex(), Octal(), or CRadix()
+       to  interpret  the text in another base. The CRadix operator interprets
+       C-style "0" (base-8) and  "0x"  (base-16)  prefixes,  but  defaults  to
+       base-10.
+
+         Example:
+           int a, b, c, d;
+           pcrecpp::RE re("(.*) (.*) (.*) (.*)");
+           re.FullMatch("100 40 0100 0x40",
+                        pcrecpp::Octal(&a), pcrecpp::Hex(&b),
+                        pcrecpp::CRadix(&c), pcrecpp::CRadix(&d));
+
+       will leave 64 in a, b, c, and d.
+
+
+REPLACING PARTS OF STRINGS
+
+       You  can  replace the first match of "pattern" in "str" with "rewrite".
+       Within "rewrite", backslash-escaped digits (\1 to \9) can  be  used  to
+       insert  text  matching  corresponding parenthesized group from the pat-
+       tern. \0 in "rewrite" refers to the entire matching text. For example:
+
+         string s = "yabba dabba doo";
+         pcrecpp::RE("b+").Replace("d", &s);
+
+       will leave "s" containing "yada dabba doo". The result is true  if  the
+       pattern matches and a replacement occurs, false otherwise.
+
+       GlobalReplace  is  like Replace except that it replaces all occurrences
+       of the pattern in the string with the  rewrite.  Replacements  are  not
+       subject to re-matching. For example:
+
+         string s = "yabba dabba doo";
+         pcrecpp::RE("b+").GlobalReplace("d", &s);
+
+       will  leave  "s"  containing  "yada dada doo". It returns the number of
+       replacements made.
+
+       Extract is like Replace, except that if the pattern matches,  "rewrite"
+       is  copied into "out" (an additional argument) with substitutions.  The
+       non-matching portions of "text" are ignored. Returns true iff  a  match
+       occurred and the extraction happened successfully;  if no match occurs,
+       the string is left unaffected.
+
+
+AUTHOR
+
+       The C++ wrapper was contributed by Google Inc.
+       Copyright (c) 2007 Google Inc.
+
+
+REVISION
+
+       Last updated: 08 January 2012
+------------------------------------------------------------------------------
+
+
+PCRESAMPLE(3)                                                    PCRESAMPLE(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE SAMPLE PROGRAM
+
+       A simple, complete demonstration program, to get you started with using
+       PCRE, is supplied in the file pcredemo.c in the  PCRE  distribution.  A
+       listing  of this program is given in the pcredemo documentation. If you
+       do not have a copy of the PCRE distribution, you can save this  listing
+       to re-create pcredemo.c.
+
+       The  demonstration program, which uses the original PCRE 8-bit library,
+       compiles the regular expression that is its first argument, and matches
+       it  against  the subject string in its second argument. No PCRE options
+       are set, and default character tables are used. If  matching  succeeds,
+       the  program  outputs the portion of the subject that matched, together
+       with the contents of any captured substrings.
+
+       If the -g option is given on the command line, the program then goes on
+       to check for further matches of the same regular expression in the same
+       subject string. The logic is a little bit tricky because of the  possi-
+       bility  of  matching an empty string. Comments in the code explain what
+       is going on.
+
+       If PCRE is installed in the standard include  and  library  directories
+       for your operating system, you should be able to compile the demonstra-
+       tion program using this command:
+
+         gcc -o pcredemo pcredemo.c -lpcre
+
+       If PCRE is installed elsewhere, you may need to add additional  options
+       to  the  command line. For example, on a Unix-like system that has PCRE
+       installed in /usr/local, you  can  compile  the  demonstration  program
+       using a command like this:
+
+         gcc -o pcredemo -I/usr/local/include pcredemo.c \
+             -L/usr/local/lib -lpcre
+
+       In  a  Windows  environment, if you want to statically link the program
+       against a non-dll pcre.a file, you must uncomment the line that defines
+       PCRE_STATIC  before  including  pcre.h, because otherwise the pcre_mal-
+       loc()   and   pcre_free()   exported   functions   will   be   declared
+       __declspec(dllimport), with unwanted results.
+
+       Once  you  have  compiled and linked the demonstration program, you can
+       run simple tests like this:
+
+         ./pcredemo 'cat|dog' 'the cat sat on the mat'
+         ./pcredemo -g 'cat|dog' 'the dog sat on the cat'
+
+       Note that there is a  much  more  comprehensive  test  program,  called
+       pcretest,  which  supports  many  more  facilities  for testing regular
+       expressions and both PCRE libraries. The pcredemo program  is  provided
+       as a simple coding example.
+
+       If  you  try to run pcredemo when PCRE is not installed in the standard
+       library directory, you may get an error like  this  on  some  operating
+       systems (e.g. Solaris):
+
+         ld.so.1:  a.out:  fatal:  libpcre.so.0:  open failed: No such file or
+       directory
+
+       This is caused by the way shared library support works  on  those  sys-
+       tems. You need to add
+
+         -R/usr/local/lib
+
+       (for example) to the compile command to get round this problem.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 10 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+PCRELIMITS(3)                                                    PCRELIMITS(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+SIZE AND OTHER LIMITATIONS
+
+       There  are some size limitations in PCRE but it is hoped that they will
+       never in practice be relevant.
+
+       The maximum length of a compiled  pattern  is  approximately  64K  data
+       units  (bytes  for  the  8-bit  library,  16-bit  units  for the 16-bit
+       library) if PCRE is compiled with the default internal linkage size  of
+       2  bytes.  If  you  want  to process regular expressions that are truly
+       enormous, you can compile PCRE with an internal linkage size of 3 or  4
+       (when  building  the  16-bit  library,  3  is rounded up to 4). See the
+       README file in the source distribution and the pcrebuild  documentation
+       for  details.  In  these cases the limit is substantially larger.  How-
+       ever, the speed of execution is slower.
+
+       All values in repeating quantifiers must be less than 65536.
+
+       There is no limit to the number of parenthesized subpatterns, but there
+       can be no more than 65535 capturing subpatterns.
+
+       There is a limit to the number of forward references to subsequent sub-
+       patterns of around 200,000.  Repeated  forward  references  with  fixed
+       upper  limits,  for example, (?2){0,100} when subpattern number 2 is to
+       the right, are included in the count. There is no limit to  the  number
+       of backward references.
+
+       The maximum length of name for a named subpattern is 32 characters, and
+       the maximum number of named subpatterns is 10000.
+
+       The maximum length of a  name  in  a  (*MARK),  (*PRUNE),  (*SKIP),  or
+       (*THEN)  verb  is  255  for  the 8-bit library and 65535 for the 16-bit
+       library.
+
+       The maximum length of a subject string is the largest  positive  number
+       that  an integer variable can hold. However, when using the traditional
+       matching function, PCRE uses recursion to handle subpatterns and indef-
+       inite  repetition.  This means that the available stack space may limit
+       the size of a subject string that can be processed by certain patterns.
+       For a discussion of stack issues, see the pcrestack documentation.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 04 May 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
+PCRESTACK(3)                                                      PCRESTACK(3)
+
+
+NAME
+       PCRE - Perl-compatible regular expressions
+
+
+PCRE DISCUSSION OF STACK USAGE
+
+       When  you  call  pcre[16]_exec(),  it makes use of an internal function
+       called match(). This calls itself recursively at branch points  in  the
+       pattern,  in  order  to  remember the state of the match so that it can
+       back up and try a different alternative if  the  first  one  fails.  As
+       matching proceeds deeper and deeper into the tree of possibilities, the
+       recursion depth increases. The match() function is also called in other
+       circumstances,  for  example,  whenever  a parenthesized sub-pattern is
+       entered, and in certain cases of repetition.
+
+       Not all calls of match() increase the recursion depth; for an item such
+       as  a* it may be called several times at the same level, after matching
+       different numbers of a's. Furthermore, in a number of cases  where  the
+       result  of  the  recursive call would immediately be passed back as the
+       result of the current call (a "tail recursion"), the function  is  just
+       restarted instead.
+
+       The  above  comments  apply  when  pcre[16]_exec() is run in its normal
+       interpretive  manner.   If   the   pattern   was   studied   with   the
+       PCRE_STUDY_JIT_COMPILE  option, and just-in-time compiling was success-
+       ful, and the options passed to pcre[16]_exec() were  not  incompatible,
+       the  matching process uses the JIT-compiled code instead of the match()
+       function. In this case, the memory requirements  are  handled  entirely
+       differently. See the pcrejit documentation for details.
+
+       The pcre[16]_dfa_exec() function operates in an entirely different way,
+       and uses recursion only when there is a regular expression recursion or
+       subroutine  call in the pattern. This includes the processing of asser-
+       tion and "once-only" subpatterns, which  are  handled  like  subroutine
+       calls.  Normally,  these are never very deep, and the limit on the com-
+       plexity of pcre[16]_dfa_exec() is controlled by the amount of workspace
+       it  is  given.   However, it is possible to write patterns with runaway
+       infinite recursions; such patterns will  cause  pcre[16]_dfa_exec()  to
+       run out of stack. At present, there is no protection against this.
+
+       The  comments that follow do NOT apply to pcre[16]_dfa_exec(); they are
+       relevant only for pcre[16]_exec() without the JIT optimization.
+
+   Reducing pcre[16]_exec()'s stack usage
+
+       Each time that match() is actually called recursively, it  uses  memory
+       from  the  process  stack.  For certain kinds of pattern and data, very
+       large amounts of stack may be needed, despite the recognition of  "tail
+       recursion".   You  can often reduce the amount of recursion, and there-
+       fore the amount of stack used, by modifying the pattern that  is  being
+       matched. Consider, for example, this pattern:
+
+         ([^<]|<(?!inet))+
+
+       It  matches  from wherever it starts until it encounters "<inet" or the
+       end of the data, and is the kind of pattern that  might  be  used  when
+       processing an XML file. Each iteration of the outer parentheses matches
+       either one character that is not "<" or a "<" that is not  followed  by
+       "inet".  However,  each  time  a  parenthesis is processed, a recursion
+       occurs, so this formulation uses a stack frame for each matched charac-
+       ter.  For  a long string, a lot of stack is required. Consider now this
+       rewritten pattern, which matches exactly the same strings:
+
+         ([^<]++|<(?!inet))+
+
+       This uses very much less stack, because runs of characters that do  not
+       contain  "<" are "swallowed" in one item inside the parentheses. Recur-
+       sion happens only when a "<" character that is not followed  by  "inet"
+       is  encountered  (and  we assume this is relatively rare). A possessive
+       quantifier is used to stop any backtracking into the  runs  of  non-"<"
+       characters, but that is not related to stack usage.
+
+       This  example shows that one way of avoiding stack problems when match-
+       ing long subject strings is to write repeated parenthesized subpatterns
+       to match more than one character whenever possible.
+
+   Compiling PCRE to use heap instead of stack for pcre[16]_exec()
+
+       In  environments  where  stack memory is constrained, you might want to
+       compile PCRE to use heap memory instead of stack for remembering  back-
+       up points when pcre[16]_exec() is running. This makes it run a lot more
+       slowly, however.  Details of how to do this are given in the  pcrebuild
+       documentation. When built in this way, instead of using the stack, PCRE
+       obtains and frees memory by calling the functions that are  pointed  to
+       by  the  pcre[16]_stack_malloc  and  pcre[16]_stack_free  variables. By
+       default, these point to malloc() and free(), but you  can  replace  the
+       pointers to cause PCRE to use your own functions. Since the block sizes
+       are always the same, and are always freed in reverse order, it  may  be
+       possible  to  implement  customized memory handlers that are more effi-
+       cient than the standard functions.
+
+   Limiting pcre[16]_exec()'s stack usage
+
+       You can set limits on the number of times that match() is called,  both
+       in  total  and  recursively.  If  a  limit is exceeded, pcre[16]_exec()
+       returns an error code. Setting suitable limits should prevent  it  from
+       running  out of stack. The default values of the limits are very large,
+       and unlikely ever to operate. They can be changed when PCRE  is  built,
+       and they can also be set when pcre[16]_exec() is called. For details of
+       these interfaces, see the pcrebuild documentation and  the  section  on
+       extra data for pcre[16]_exec() in the pcreapi documentation.
+
+       As a very rough rule of thumb, you should reckon on about 500 bytes per
+       recursion. Thus, if you want to limit your  stack  usage  to  8Mb,  you
+       should  set  the  limit at 16000 recursions. A 64Mb stack, on the other
+       hand, can support around 128000 recursions.
+
+       In Unix-like environments, the pcretest test program has a command line
+       option (-S) that can be used to increase the size of its stack. As long
+       as the stack is large enough, another option (-M) can be used  to  find
+       the  smallest  limits  that allow a particular pattern to match a given
+       subject string. This is done by calling pcre[16]_exec() repeatedly with
+       different limits.
+
+   Obtaining an estimate of stack usage
+
+       The  actual  amount  of  stack used per recursion can vary quite a lot,
+       depending on the compiler that was used to build PCRE and the optimiza-
+       tion or debugging options that were set for it. The rule of thumb value
+       of 500 bytes mentioned above may be larger  or  smaller  than  what  is
+       actually needed. A better approximation can be obtained by running this
+       command:
+
+         pcretest -m -C
+
+       The -C option causes pcretest to output information about  the  options
+       with which PCRE was compiled. When -m is also given (before -C), infor-
+       mation about stack use is given in a line like this:
+
+         Match recursion uses stack: approximate frame size = 640 bytes
+
+       The value is approximate because some recursions need a bit more (up to
+       perhaps 16 more bytes).
+
+       If  the  above  command  is given when PCRE is compiled to use the heap
+       instead of the stack for recursion, the value that  is  output  is  the
+       size of each block that is obtained from the heap.
+
+   Changing stack size in Unix-like systems
+
+       In  Unix-like environments, there is not often a problem with the stack
+       unless very long strings are involved,  though  the  default  limit  on
+       stack  size  varies  from system to system. Values from 8Mb to 64Mb are
+       common. You can find your default limit by running the command:
+
+         ulimit -s
+
+       Unfortunately, the effect of running out of  stack  is  often  SIGSEGV,
+       though  sometimes  a more explicit error message is given. You can nor-
+       mally increase the limit on stack size by code such as this:
+
+         struct rlimit rlim;
+         getrlimit(RLIMIT_STACK, &rlim);
+         rlim.rlim_cur = 100*1024*1024;
+         setrlimit(RLIMIT_STACK, &rlim);
+
+       This reads the current limits (soft and hard) using  getrlimit(),  then
+       attempts  to  increase  the  soft limit to 100Mb using setrlimit(). You
+       must do this before calling pcre[16]_exec().
+
+   Changing stack size in Mac OS X
+
+       Using setrlimit(), as described above, should also work on Mac OS X. It
+       is also possible to set a stack size when linking a program. There is a
+       discussion  about  stack  sizes  in  Mac  OS  X  at  this   web   site:
+       http://developer.apple.com/qa/qa2005/qa1419.html.
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 21 January 2012
+       Copyright (c) 1997-2012 University of Cambridge.
+------------------------------------------------------------------------------
+
+
diff --git a/8.31/doc/pcre16.3 b/8.31/doc/pcre16.3
new file mode 100644
index 0000000..7b97099
--- /dev/null
+++ b/8.31/doc/pcre16.3
@@ -0,0 +1,389 @@
+.TH PCRE 3 "14 April 2012" "PCRE 8.31"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.sp
+.B #include <pcre.h>
+.
+.
+.SH "PCRE 16-BIT API BASIC FUNCTIONS"
+.rs
+.sp
+.SM
+.B pcre16 *pcre16_compile(PCRE_SPTR16 \fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.PP
+.B pcre16 *pcre16_compile2(PCRE_SPTR16 \fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B int *\fIerrorcodeptr\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.PP
+.B pcre16_extra *pcre16_study(const pcre16 *\fIcode\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP);
+.PP
+.B void pcre16_free_study(pcre16_extra *\fIextra\fP);
+.PP
+.B int pcre16_exec(const pcre16 *\fIcode\fP, "const pcre16_extra *\fIextra\fP,"
+.ti +5n
+.B "PCRE_SPTR16 \fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP);
+.PP
+.B int pcre16_dfa_exec(const pcre16 *\fIcode\fP, "const pcre16_extra *\fIextra\fP,"
+.ti +5n
+.B "PCRE_SPTR16 \fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP,
+.ti +5n
+.B int *\fIworkspace\fP, int \fIwscount\fP);
+.
+.
+.SH "PCRE 16-BIT API STRING EXTRACTION FUNCTIONS"
+.rs
+.sp
+.B int pcre16_copy_named_substring(const pcre16 *\fIcode\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, PCRE_SPTR16 \fIstringname\fP,
+.ti +5n
+.B PCRE_UCHAR16 *\fIbuffer\fP, int \fIbuffersize\fP);
+.PP
+.B int pcre16_copy_substring(PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP, PCRE_UCHAR16 *\fIbuffer\fP,
+.ti +5n
+.B int \fIbuffersize\fP);
+.PP
+.B int pcre16_get_named_substring(const pcre16 *\fIcode\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, PCRE_SPTR16 \fIstringname\fP,
+.ti +5n
+.B PCRE_SPTR16 *\fIstringptr\fP);
+.PP
+.B int pcre16_get_stringnumber(const pcre16 *\fIcode\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIname\fP);
+.PP
+.B int pcre16_get_stringtable_entries(const pcre16 *\fIcode\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIname\fP, PCRE_UCHAR16 **\fIfirst\fP, PCRE_UCHAR16 **\fIlast\fP);
+.PP
+.B int pcre16_get_substring(PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP,
+.ti +5n
+.B PCRE_SPTR16 *\fIstringptr\fP);
+.PP
+.B int pcre16_get_substring_list(PCRE_SPTR16 \fIsubject\fP,
+.ti +5n
+.B int *\fIovector\fP, int \fIstringcount\fP, "PCRE_SPTR16 **\fIlistptr\fP);"
+.PP
+.B void pcre16_free_substring(PCRE_SPTR16 \fIstringptr\fP);
+.PP
+.B void pcre16_free_substring_list(PCRE_SPTR16 *\fIstringptr\fP);
+.
+.
+.SH "PCRE 16-BIT API AUXILIARY FUNCTIONS"
+.rs
+.sp
+.B pcre16_jit_stack *pcre16_jit_stack_alloc(int \fIstartsize\fP, int \fImaxsize\fP);
+.PP
+.B void pcre16_jit_stack_free(pcre16_jit_stack *\fIstack\fP);
+.PP
+.B void pcre16_assign_jit_stack(pcre16_extra *\fIextra\fP,
+.ti +5n
+.B pcre16_jit_callback \fIcallback\fP, void *\fIdata\fP);
+.PP
+.B const unsigned char *pcre16_maketables(void);
+.PP
+.B int pcre16_fullinfo(const pcre16 *\fIcode\fP, "const pcre16_extra *\fIextra\fP,"
+.ti +5n
+.B int \fIwhat\fP, void *\fIwhere\fP);
+.PP
+.B int pcre16_refcount(pcre16 *\fIcode\fP, int \fIadjust\fP);
+.PP
+.B int pcre16_config(int \fIwhat\fP, void *\fIwhere\fP);
+.PP
+.B const char *pcre16_version(void);
+.PP
+.B int pcre16_pattern_to_host_byte_order(pcre16 *\fIcode\fP,
+.ti +5n
+.B pcre16_extra *\fIextra\fP, const unsigned char *\fItables\fP);
+.
+.
+.SH "PCRE 16-BIT API INDIRECTED FUNCTIONS"
+.rs
+.sp
+.B void *(*pcre16_malloc)(size_t);
+.PP
+.B void (*pcre16_free)(void *);
+.PP
+.B void *(*pcre16_stack_malloc)(size_t);
+.PP
+.B void (*pcre16_stack_free)(void *);
+.PP
+.B int (*pcre16_callout)(pcre16_callout_block *);
+.
+.
+.SH "PCRE 16-BIT API 16-BIT-ONLY FUNCTION"
+.rs
+.sp
+.B int pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *\fIoutput\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIinput\fP, int \fIlength\fP, int *\fIbyte_order\fP,
+.ti +5n
+.B int \fIkeep_boms\fP);
+.
+.
+.SH "THE PCRE 16-BIT LIBRARY"
+.rs
+.sp
+Starting with release 8.30, it is possible to compile a PCRE library that
+supports 16-bit character strings, including UTF-16 strings, as well as or
+instead of the original 8-bit library. The majority of the work to make this
+possible was done by Zoltan Herczeg. The two libraries contain identical sets
+of functions, used in exactly the same way. Only the names of the functions and
+the data types of their arguments and results are different. To avoid
+over-complication and reduce the documentation maintenance load, most of the
+PCRE documentation describes the 8-bit library, with only occasional references
+to the 16-bit library. This page describes what is different when you use the
+16-bit library.
+.P
+WARNING: A single application can be linked with both libraries, but you must
+take care when processing any particular pattern to use functions from just one
+library. For example, if you want to study a pattern that was compiled with
+\fBpcre16_compile()\fP, you must do so with \fBpcre16_study()\fP, not
+\fBpcre_study()\fP, and you must free the study data with
+\fBpcre16_free_study()\fP.
+.
+.
+.SH "THE HEADER FILE"
+.rs
+.sp
+There is only one header file, \fBpcre.h\fP. It contains prototypes for all the
+functions in both libraries, as well as definitions of flags, structures, error
+codes, etc.
+.
+.
+.SH "THE LIBRARY NAME"
+.rs
+.sp
+In Unix-like systems, the 16-bit library is called \fBlibpcre16\fP, and can
+normally be accesss by adding \fB-lpcre16\fP to the command for linking an
+application that uses PCRE.
+.
+.
+.SH "STRING TYPES"
+.rs
+.sp
+In the 8-bit library, strings are passed to PCRE library functions as vectors
+of bytes with the C type "char *". In the 16-bit library, strings are passed as
+vectors of unsigned 16-bit quantities. The macro PCRE_UCHAR16 specifies an
+appropriate data type, and PCRE_SPTR16 is defined as "const PCRE_UCHAR16 *". In
+very many environments, "short int" is a 16-bit data type. When PCRE is built,
+it defines PCRE_UCHAR16 as "short int", but checks that it really is a 16-bit
+data type. If it is not, the build fails with an error message telling the
+maintainer to modify the definition appropriately.
+.
+.
+.SH "STRUCTURE TYPES"
+.rs
+.sp
+The types of the opaque structures that are used for compiled 16-bit patterns
+and JIT stacks are \fBpcre16\fP and \fBpcre16_jit_stack\fP respectively. The
+type of the user-accessible structure that is returned by \fBpcre16_study()\fP
+is \fBpcre16_extra\fP, and the type of the structure that is used for passing
+data to a callout function is \fBpcre16_callout_block\fP. These structures
+contain the same fields, with the same names, as their 8-bit counterparts. The
+only difference is that pointers to character strings are 16-bit instead of
+8-bit types.
+.
+.
+.SH "16-BIT FUNCTIONS"
+.rs
+.sp
+For every function in the 8-bit library there is a corresponding function in
+the 16-bit library with a name that starts with \fBpcre16_\fP instead of
+\fBpcre_\fP. The prototypes are listed above. In addition, there is one extra
+function, \fBpcre16_utf16_to_host_byte_order()\fP. This is a utility function
+that converts a UTF-16 character string to host byte order if necessary. The
+other 16-bit functions expect the strings they are passed to be in host byte
+order.
+.P
+The \fIinput\fP and \fIoutput\fP arguments of
+\fBpcre16_utf16_to_host_byte_order()\fP may point to the same address, that is,
+conversion in place is supported. The output buffer must be at least as long as
+the input.
+.P
+The \fIlength\fP argument specifies the number of 16-bit data units in the
+input string; a negative value specifies a zero-terminated string.
+.P
+If \fIbyte_order\fP is NULL, it is assumed that the string starts off in host
+byte order. This may be changed by byte-order marks (BOMs) anywhere in the
+string (commonly as the first character).
+.P
+If \fIbyte_order\fP is not NULL, a non-zero value of the integer to which it
+points means that the input starts off in host byte order, otherwise the
+opposite order is assumed. Again, BOMs in the string can change this. The final
+byte order is passed back at the end of processing.
+.P
+If \fIkeep_boms\fP is not zero, byte-order mark characters (0xfeff) are copied
+into the output string. Otherwise they are discarded.
+.P
+The result of the function is the number of 16-bit units placed into the output
+buffer, including the zero terminator if the string was zero-terminated.
+.
+.
+.SH "SUBJECT STRING OFFSETS"
+.rs
+.sp
+The offsets within subject strings that are returned by the matching functions
+are in 16-bit units rather than bytes.
+.
+.
+.SH "NAMED SUBPATTERNS"
+.rs
+.sp
+The name-to-number translation table that is maintained for named subpatterns
+uses 16-bit characters. The \fBpcre16_get_stringtable_entries()\fP function
+returns the length of each entry in the table as the number of 16-bit data
+units.
+.
+.
+.SH "OPTION NAMES"
+.rs
+.sp
+There are two new general option names, PCRE_UTF16 and PCRE_NO_UTF16_CHECK,
+which correspond to PCRE_UTF8 and PCRE_NO_UTF8_CHECK in the 8-bit library. In
+fact, these new options define the same bits in the options word. There is a
+discussion about the
+.\" HTML <a href="pcreunicode.html#utf16strings">
+.\" </a>
+validity of UTF-16 strings
+.\"
+in the
+.\" HREF
+\fBpcreunicode\fP
+.\"
+page.
+.P
+For the \fBpcre16_config()\fP function there is an option PCRE_CONFIG_UTF16
+that returns 1 if UTF-16 support is configured, otherwise 0. If this option is
+given to \fBpcre_config()\fP, or if the PCRE_CONFIG_UTF8 option is given to
+\fBpcre16_config()\fP, the result is the PCRE_ERROR_BADOPTION error.
+.
+.
+.SH "CHARACTER CODES"
+.rs
+.sp
+In 16-bit mode, when PCRE_UTF16 is not set, character values are treated in the
+same way as in 8-bit, non UTF-8 mode, except, of course, that they can range
+from 0 to 0xffff instead of 0 to 0xff. Character types for characters less than
+0xff can therefore be influenced by the locale in the same way as before.
+Characters greater than 0xff have only one case, and no "type" (such as letter
+or digit).
+.P
+In UTF-16 mode, the character code is Unicode, in the range 0 to 0x10ffff, with
+the exception of values in the range 0xd800 to 0xdfff because those are
+"surrogate" values that are used in pairs to encode values greater than 0xffff.
+.P
+A UTF-16 string can indicate its endianness by special code knows as a
+byte-order mark (BOM). The PCRE functions do not handle this, expecting strings
+to be in host byte order. A utility function called
+\fBpcre16_utf16_to_host_byte_order()\fP is provided to help with this (see
+above).
+.
+.
+.SH "ERROR NAMES"
+.rs
+.sp
+The errors PCRE_ERROR_BADUTF16_OFFSET and PCRE_ERROR_SHORTUTF16 correspond to
+their 8-bit counterparts. The error PCRE_ERROR_BADMODE is given when a compiled
+pattern is passed to a function that processes patterns in the other
+mode, for example, if a pattern compiled with \fBpcre_compile()\fP is passed to
+\fBpcre16_exec()\fP.
+.P
+There are new error codes whose names begin with PCRE_UTF16_ERR for invalid
+UTF-16 strings, corresponding to the PCRE_UTF8_ERR codes for UTF-8 strings that
+are described in the section entitled
+.\" HTML <a href="pcreapi.html#badutf8reasons">
+.\" </a>
+"Reason codes for invalid UTF-8 strings"
+.\"
+in the main
+.\" HREF
+\fBpcreapi\fP
+.\"
+page. The UTF-16 errors are:
+.sp
+  PCRE_UTF16_ERR1  Missing low surrogate at end of string
+  PCRE_UTF16_ERR2  Invalid low surrogate follows high surrogate
+  PCRE_UTF16_ERR3  Isolated low surrogate
+  PCRE_UTF16_ERR4  Invalid character 0xfffe
+.
+.
+.SH "ERROR TEXTS"
+.rs
+.sp
+If there is an error while compiling a pattern, the error text that is passed
+back by \fBpcre16_compile()\fP or \fBpcre16_compile2()\fP is still an 8-bit
+character string, zero-terminated.
+.
+.
+.SH "CALLOUTS"
+.rs
+.sp
+The \fIsubject\fP and \fImark\fP fields in the callout block that is passed to
+a callout function point to 16-bit vectors.
+.
+.
+.SH "TESTING"
+.rs
+.sp
+The \fBpcretest\fP program continues to operate with 8-bit input and output
+files, but it can be used for testing the 16-bit library. If it is run with the
+command line option \fB-16\fP, patterns and subject strings are converted from
+8-bit to 16-bit before being passed to PCRE, and the 16-bit library functions
+are used instead of the 8-bit ones. Returned 16-bit strings are converted to
+8-bit for output. If the 8-bit library was not compiled, \fBpcretest\fP
+defaults to 16-bit and the \fB-16\fP option is ignored.
+.P
+When PCRE is being built, the \fBRunTest\fP script that is called by "make
+check" uses the \fBpcretest\fP \fB-C\fP option to discover which of the 8-bit
+and 16-bit libraries has been built, and runs the tests appropriately.
+.
+.
+.SH "NOT SUPPORTED IN 16-BIT MODE"
+.rs
+.sp
+Not all the features of the 8-bit library are available with the 16-bit
+library. The C++ and POSIX wrapper functions support only the 8-bit library,
+and the \fBpcregrep\fP program is at present 8-bit only.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 14 April 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcre_assign_jit_stack.3 b/8.31/doc/pcre_assign_jit_stack.3
new file mode 100644
index 0000000..fc32dda
--- /dev/null
+++ b/8.31/doc/pcre_assign_jit_stack.3
@@ -0,0 +1,57 @@
+.TH PCRE_ASSIGN_JIT_STACK 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B void pcre_assign_jit_stack(pcre_extra *\fIextra\fP,
+.ti +5n
+.B pcre_jit_callback \fIcallback\fP, void *\fIdata\fP);
+.PP
+.B void pcre16_assign_jit_stack(pcre16_extra *\fIextra\fP,
+.ti +5n
+.B pcre16_jit_callback \fIcallback\fP, void *\fIdata\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function provides control over the memory used as a stack at run-time by a
+call to \fBpcre[16]_exec()\fP with a pattern that has been successfully
+compiled with JIT optimization. The arguments are:
+.sp
+  extra     the data pointer returned by \fBpcre[16]_study()\fP
+  callback  a callback function
+  data      a JIT stack or a value to be passed to the callback
+              function
+.P
+If \fIcallback\fP is NULL and \fIdata\fP is NULL, an internal 32K block on
+the machine stack is used.
+.P
+If \fIcallback\fP is NULL and \fIdata\fP is not NULL, \fIdata\fP must
+be a valid JIT stack, the result of calling \fBpcre[16]_jit_stack_alloc()\fP.
+.P
+If \fIcallback\fP not NULL, it is called with \fIdata\fP as an argument at
+the start of matching, in order to set up a JIT stack. If the result is NULL,
+the internal 32K stack is used; otherwise the return value must be a valid JIT
+stack, the result of calling \fBpcre[16]_jit_stack_alloc()\fP.
+.P
+You may safely assign the same JIT stack to multiple patterns, as long as they
+are all matched in the same thread. In a multithread application, each thread
+must use its own JIT stack. For more details, see the
+.\" HREF
+\fBpcrejit\fP
+.\"
+page.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_compile.3 b/8.31/doc/pcre_compile.3
new file mode 100644
index 0000000..c38c251
--- /dev/null
+++ b/8.31/doc/pcre_compile.3
@@ -0,0 +1,88 @@
+.TH PCRE_COMPILE 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B pcre *pcre_compile(const char *\fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.PP
+.B pcre16 *pcre16_compile(PCRE_SPTR16 \fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function compiles a regular expression into an internal form. It is the
+same as \fBpcre[16]_compile2()\fP, except for the absence of the
+\fIerrorcodeptr\fP argument. Its arguments are:
+.sp
+  \fIpattern\fP       A zero-terminated string containing the
+                  regular expression to be compiled
+  \fIoptions\fP       Zero or more option bits
+  \fIerrptr\fP        Where to put an error message
+  \fIerroffset\fP     Offset in pattern where error was found
+  \fItableptr\fP      Pointer to character tables, or NULL to
+                  use the built-in default
+.sp
+The option bits are:
+.sp
+  PCRE_ANCHORED           Force pattern anchoring
+  PCRE_AUTO_CALLOUT       Compile automatic callouts
+  PCRE_BSR_ANYCRLF        \eR matches only CR, LF, or CRLF
+  PCRE_BSR_UNICODE        \eR matches all Unicode line endings
+  PCRE_CASELESS           Do caseless matching
+  PCRE_DOLLAR_ENDONLY     $ not to match newline at end
+  PCRE_DOTALL             . matches anything including NL
+  PCRE_DUPNAMES           Allow duplicate names for subpatterns
+  PCRE_EXTENDED           Ignore white space and # comments
+  PCRE_EXTRA              PCRE extra features
+                            (not much use currently)
+  PCRE_FIRSTLINE          Force matching to be before newline
+  PCRE_JAVASCRIPT_COMPAT  JavaScript compatibility
+  PCRE_MULTILINE          ^ and $ match newlines within data
+  PCRE_NEWLINE_ANY        Recognize any Unicode newline sequence
+  PCRE_NEWLINE_ANYCRLF    Recognize CR, LF, and CRLF as newline
+                            sequences
+  PCRE_NEWLINE_CR         Set CR as the newline sequence
+  PCRE_NEWLINE_CRLF       Set CRLF as the newline sequence
+  PCRE_NEWLINE_LF         Set LF as the newline sequence
+  PCRE_NO_AUTO_CAPTURE    Disable numbered capturing paren-
+                            theses (named ones available)
+  PCRE_NO_UTF16_CHECK     Do not check the pattern for UTF-16
+                            validity (only relevant if
+                            PCRE_UTF16 is set)
+  PCRE_NO_UTF8_CHECK      Do not check the pattern for UTF-8
+                            validity (only relevant if
+                            PCRE_UTF8 is set)
+  PCRE_UCP                Use Unicode properties for \ed, \ew, etc.
+  PCRE_UNGREEDY           Invert greediness of quantifiers
+  PCRE_UTF16              Run in \fBpcre16_compile()\fP UTF-16 mode
+  PCRE_UTF8               Run in \fBpcre_compile()\fP UTF-8 mode
+.sp
+PCRE must be built with UTF support in order to use PCRE_UTF8/16 and
+PCRE_NO_UTF8/16_CHECK, and with UCP support if PCRE_UCP is used.
+.P
+The yield of the function is a pointer to a private data structure that
+contains the compiled pattern, or NULL if an error was detected. Note that
+compiling regular expressions with one version of PCRE for use with a different
+version is not guaranteed to work and may cause crashes.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_compile2.3 b/8.31/doc/pcre_compile2.3
new file mode 100644
index 0000000..58b8a14
--- /dev/null
+++ b/8.31/doc/pcre_compile2.3
@@ -0,0 +1,94 @@
+.TH PCRE_COMPILE2 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B pcre *pcre_compile2(const char *\fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B int *\fIerrorcodeptr\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.PP
+.B pcre16 *pcre16_compile2(PCRE_SPTR16 \fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B int *\fIerrorcodeptr\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function compiles a regular expression into an internal form. It is the
+same as \fBpcre[16]_compile()\fP, except for the addition of the
+\fIerrorcodeptr\fP argument. The arguments are:
+.
+.sp
+  \fIpattern\fP       A zero-terminated string containing the
+                  regular expression to be compiled
+  \fIoptions\fP       Zero or more option bits
+  \fIerrorcodeptr\fP  Where to put an error code
+  \fIerrptr\fP        Where to put an error message
+  \fIerroffset\fP     Offset in pattern where error was found
+  \fItableptr\fP      Pointer to character tables, or NULL to
+                  use the built-in default
+.sp
+The option bits are:
+.sp
+  PCRE_ANCHORED           Force pattern anchoring
+  PCRE_AUTO_CALLOUT       Compile automatic callouts
+  PCRE_BSR_ANYCRLF        \eR matches only CR, LF, or CRLF
+  PCRE_BSR_UNICODE        \eR matches all Unicode line endings
+  PCRE_CASELESS           Do caseless matching
+  PCRE_DOLLAR_ENDONLY     $ not to match newline at end
+  PCRE_DOTALL             . matches anything including NL
+  PCRE_DUPNAMES           Allow duplicate names for subpatterns
+  PCRE_EXTENDED           Ignore white space and # comments
+  PCRE_EXTRA              PCRE extra features
+                            (not much use currently)
+  PCRE_FIRSTLINE          Force matching to be before newline
+  PCRE_JAVASCRIPT_COMPAT  JavaScript compatibility
+  PCRE_MULTILINE          ^ and $ match newlines within data
+  PCRE_NEWLINE_ANY        Recognize any Unicode newline sequence
+  PCRE_NEWLINE_ANYCRLF    Recognize CR, LF, and CRLF as newline
+                            sequences
+  PCRE_NEWLINE_CR         Set CR as the newline sequence
+  PCRE_NEWLINE_CRLF       Set CRLF as the newline sequence
+  PCRE_NEWLINE_LF         Set LF as the newline sequence
+  PCRE_NO_AUTO_CAPTURE    Disable numbered capturing paren-
+                            theses (named ones available)
+  PCRE_NO_UTF16_CHECK     Do not check the pattern for UTF-16
+                            validity (only relevant if
+                            PCRE_UTF16 is set)
+  PCRE_NO_UTF8_CHECK      Do not check the pattern for UTF-8
+                            validity (only relevant if
+                            PCRE_UTF8 is set)
+  PCRE_UCP                Use Unicode properties for \ed, \ew, etc.
+  PCRE_UNGREEDY           Invert greediness of quantifiers
+  PCRE_UTF16              Run \fBpcre16_compile()\fP in UTF-16 mode
+  PCRE_UTF8               Run \fBpcre_compile()\fP in UTF-8 mode
+.sp
+PCRE must be built with UTF support in order to use PCRE_UTF8/16 and
+PCRE_NO_UTF8/16_CHECK, and with UCP support if PCRE_UCP is used.
+.P
+The yield of the function is a pointer to a private data structure that
+contains the compiled pattern, or NULL if an error was detected. Note that
+compiling regular expressions with one version of PCRE for use with a different
+version is not guaranteed to work and may cause crashes.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_config.3 b/8.31/doc/pcre_config.3
new file mode 100644
index 0000000..45013a4
--- /dev/null
+++ b/8.31/doc/pcre_config.3
@@ -0,0 +1,70 @@
+.TH PCRE_CONFIG 3 "21 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_config(int \fIwhat\fP, void *\fIwhere\fP);
+.PP
+.B int pcre16_config(int \fIwhat\fP, void *\fIwhere\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function makes it possible for a client program to find out which optional
+features are available in the version of the PCRE library it is using. The
+arguments are as follows:
+.sp
+  \fIwhat\fP     A code specifying what information is required
+  \fIwhere\fP    Points to where to put the data
+.sp
+The \fIwhere\fP argument must point to an integer variable, except for
+PCRE_CONFIG_MATCH_LIMIT and PCRE_CONFIG_MATCH_LIMIT_RECURSION, when it must
+point to an unsigned long integer. The available codes are:
+.sp
+  PCRE_CONFIG_JIT           Availability of just-in-time compiler
+                              support (1=yes 0=no)
+  PCRE_CONFIG_JITTARGET     String containing information about the
+                              target architecture for the JIT compiler,
+                              or NULL if there is no JIT support
+  PCRE_CONFIG_LINK_SIZE     Internal link size: 2, 3, or 4
+  PCRE_CONFIG_MATCH_LIMIT   Internal resource limit
+  PCRE_CONFIG_MATCH_LIMIT_RECURSION
+                            Internal recursion depth limit
+  PCRE_CONFIG_NEWLINE       Value of the default newline sequence:
+                                13 (0x000d)    for CR
+                                10 (0x000a)    for LF
+                              3338 (0x0d0a)    for CRLF
+                                -2             for ANYCRLF
+                                -1             for ANY
+  PCRE_CONFIG_BSR           Indicates what \eR matches by default:
+                                 0             all Unicode line endings
+                                 1             CR, LF, or CRLF only
+  PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
+                            Threshold of return slots, above which
+                              \fBmalloc()\fP is used by the POSIX API
+  PCRE_CONFIG_STACKRECURSE  Recursion implementation (1=stack 0=heap)
+  PCRE_CONFIG_UTF16         Availability of UTF-16 support (1=yes
+                               0=no); option for \fBpcre16_config()\fP
+  PCRE_CONFIG_UTF8          Availability of UTF-8 support (1=yes 0=no);
+                              option for \fBpcre_config()\fP
+  PCRE_CONFIG_UNICODE_PROPERTIES
+                            Availability of Unicode property support
+                              (1=yes 0=no)
+.sp
+The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise. That error
+is also given if PCRE_CONFIG_UTF16 is passed to \fBpcre_config()\fP or if
+PCRE_CONFIG_UTF8 is passed to \fBpcre16_config()\fP.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_copy_named_substring.3 b/8.31/doc/pcre_copy_named_substring.3
new file mode 100644
index 0000000..9838816
--- /dev/null
+++ b/8.31/doc/pcre_copy_named_substring.3
@@ -0,0 +1,51 @@
+.TH PCRE_COPY_NAMED_SUBSTRING 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_copy_named_substring(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, const char *\fIstringname\fP,
+.ti +5n
+.B char *\fIbuffer\fP, int \fIbuffersize\fP);
+.PP
+.B int pcre16_copy_named_substring(const pcre16 *\fIcode\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, PCRE_SPTR16 \fIstringname\fP,
+.ti +5n
+.B PCRE_UCHAR16 *\fIbuffer\fP, int \fIbuffersize\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This is a convenience function for extracting a captured substring, identified
+by name, into a given buffer. The arguments are:
+.sp
+  \fIcode\fP          Pattern that was successfully matched
+  \fIsubject\fP       Subject that has been successfully matched
+  \fIovector\fP       Offset vector that \fBpcre[16]_exec()\fP used
+  \fIstringcount\fP   Value returned by \fBpcre[16]_exec()\fP
+  \fIstringname\fP    Name of the required substring
+  \fIbuffer\fP        Buffer to receive the string
+  \fIbuffersize\fP    Size of buffer
+.sp
+The yield is the length of the substring, PCRE_ERROR_NOMEMORY if the buffer was
+too small, or PCRE_ERROR_NOSUBSTRING if the string name is invalid.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_copy_substring.3 b/8.31/doc/pcre_copy_substring.3
new file mode 100644
index 0000000..6bb09f8
--- /dev/null
+++ b/8.31/doc/pcre_copy_substring.3
@@ -0,0 +1,46 @@
+.TH PCRE_COPY_SUBSTRING 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_copy_substring(const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP, char *\fIbuffer\fP,
+.ti +5n
+.B int \fIbuffersize\fP);
+.PP
+.B int pcre16_copy_substring(PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP, PCRE_UCHAR16 *\fIbuffer\fP,
+.ti +5n
+.B int \fIbuffersize\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This is a convenience function for extracting a captured substring into a given
+buffer. The arguments are:
+.sp
+  \fIsubject\fP       Subject that has been successfully matched
+  \fIovector\fP       Offset vector that \fBpcre[16]_exec()\fP used
+  \fIstringcount\fP   Value returned by \fBpcre[16]_exec()\fP
+  \fIstringnumber\fP  Number of the required substring
+  \fIbuffer\fP        Buffer to receive the string
+  \fIbuffersize\fP    Size of buffer
+.sp
+The yield is the length of the string, PCRE_ERROR_NOMEMORY if the buffer was
+too small, or PCRE_ERROR_NOSUBSTRING if the string number is invalid.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_dfa_exec.3 b/8.31/doc/pcre_dfa_exec.3
new file mode 100644
index 0000000..2df5d89
--- /dev/null
+++ b/8.31/doc/pcre_dfa_exec.3
@@ -0,0 +1,114 @@
+.TH PCRE_DFA_EXEC 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_dfa_exec(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B "const char *\fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP,
+.ti +5n
+.B int *\fIworkspace\fP, int \fIwscount\fP);
+.PP
+.B int pcre16_dfa_exec(const pcre16 *\fIcode\fP, "const pcre16_extra *\fIextra\fP,"
+.ti +5n
+.B "PCRE_SPTR16 \fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP,
+.ti +5n
+.B int *\fIworkspace\fP, int \fIwscount\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function matches a compiled regular expression against a given subject
+string, using an alternative matching algorithm that scans the subject string
+just once (\fInot\fP Perl-compatible). Note that the main, Perl-compatible,
+matching function is \fBpcre[16]_exec()\fP. The arguments for this function
+are:
+.sp
+  \fIcode\fP         Points to the compiled pattern
+  \fIextra\fP        Points to an associated \fBpcre[16]_extra\fP structure,
+                 or is NULL
+  \fIsubject\fP      Points to the subject string
+  \fIlength\fP       Length of the subject string, in bytes
+  \fIstartoffset\fP  Offset in bytes in the subject at which to
+                 start matching
+  \fIoptions\fP      Option bits
+  \fIovector\fP      Points to a vector of ints for result offsets
+  \fIovecsize\fP     Number of elements in the vector
+  \fIworkspace\fP    Points to a vector of ints used as working space
+  \fIwscount\fP      Number of elements in the vector
+.sp
+The options are:
+.sp
+  PCRE_ANCHORED          Match only at the first position
+  PCRE_BSR_ANYCRLF       \eR matches only CR, LF, or CRLF
+  PCRE_BSR_UNICODE       \eR matches all Unicode line endings
+  PCRE_NEWLINE_ANY       Recognize any Unicode newline sequence
+  PCRE_NEWLINE_ANYCRLF   Recognize CR, LF, & CRLF as newline sequences
+  PCRE_NEWLINE_CR        Recognize CR as the only newline sequence
+  PCRE_NEWLINE_CRLF      Recognize CRLF as the only newline sequence
+  PCRE_NEWLINE_LF        Recognize LF as the only newline sequence
+  PCRE_NOTBOL            Subject is not the beginning of a line
+  PCRE_NOTEOL            Subject is not the end of a line
+  PCRE_NOTEMPTY          An empty string is not a valid match
+  PCRE_NOTEMPTY_ATSTART  An empty string at the start of the subject
+                           is not a valid match
+  PCRE_NO_START_OPTIMIZE Do not do "start-match" optimizations
+  PCRE_NO_UTF16_CHECK    Do not check the subject for UTF-16
+                           validity (only relevant if PCRE_UTF16
+                           was set at compile time)
+  PCRE_NO_UTF8_CHECK     Do not check the subject for UTF-8
+                           validity (only relevant if PCRE_UTF8
+                           was set at compile time)
+  PCRE_PARTIAL           ) Return PCRE_ERROR_PARTIAL for a partial
+  PCRE_PARTIAL_SOFT      )   match if no full matches are found
+  PCRE_PARTIAL_HARD      Return PCRE_ERROR_PARTIAL for a partial match
+                           even if there is a full match as well
+  PCRE_DFA_SHORTEST      Return only the shortest match
+  PCRE_DFA_RESTART       Restart after a partial match
+.sp
+There are restrictions on what may appear in a pattern when using this matching
+function. Details are given in the
+.\" HREF
+\fBpcrematching\fP
+.\"
+documentation. For details of partial matching, see the
+.\" HREF
+\fBpcrepartial\fP
+.\"
+page.
+.P
+A \fBpcre[16]_extra\fP structure contains the following fields:
+.sp
+  \fIflags\fP            Bits indicating which fields are set
+  \fIstudy_data\fP       Opaque data from \fBpcre[16]_study()\fP
+  \fImatch_limit\fP      Limit on internal resource use
+  \fImatch_limit_recursion\fP  Limit on internal recursion depth
+  \fIcallout_data\fP     Opaque data passed back to callouts
+  \fItables\fP           Points to character tables or is NULL
+  \fImark\fP             For passing back a *MARK pointer
+  \fIexecutable_jit\fP   Opaque data from JIT compilation
+.sp
+The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
+PCRE_EXTRA_MATCH_LIMIT_RECURSION, PCRE_EXTRA_CALLOUT_DATA,
+PCRE_EXTRA_TABLES, PCRE_EXTRA_MARK and PCRE_EXTRA_EXECUTABLE_JIT. For this
+matching function, the \fImatch_limit\fP and \fImatch_limit_recursion\fP fields
+are not used, and must not be set. The PCRE_EXTRA_EXECUTABLE_JIT flag and
+the corresponding variable are ignored.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_exec.3 b/8.31/doc/pcre_exec.3
new file mode 100644
index 0000000..0ff0f6f
--- /dev/null
+++ b/8.31/doc/pcre_exec.3
@@ -0,0 +1,94 @@
+.TH PCRE_EXEC 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_exec(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B "const char *\fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP);
+.PP
+.B int pcre16_exec(const pcre16 *\fIcode\fP, "const pcre16_extra *\fIextra\fP,"
+.ti +5n
+.B "PCRE_SPTR16 \fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function matches a compiled regular expression against a given subject
+string, using a matching algorithm that is similar to Perl's. It returns
+offsets to captured substrings. Its arguments are:
+.sp
+  \fIcode\fP         Points to the compiled pattern
+  \fIextra\fP        Points to an associated \fBpcre[16]_extra\fP structure,
+                 or is NULL
+  \fIsubject\fP      Points to the subject string
+  \fIlength\fP       Length of the subject string, in bytes
+  \fIstartoffset\fP  Offset in bytes in the subject at which to
+                 start matching
+  \fIoptions\fP      Option bits
+  \fIovector\fP      Points to a vector of ints for result offsets
+  \fIovecsize\fP     Number of elements in the vector (a multiple of 3)
+.sp
+The options are:
+.sp
+  PCRE_ANCHORED          Match only at the first position
+  PCRE_BSR_ANYCRLF       \eR matches only CR, LF, or CRLF
+  PCRE_BSR_UNICODE       \eR matches all Unicode line endings
+  PCRE_NEWLINE_ANY       Recognize any Unicode newline sequence
+  PCRE_NEWLINE_ANYCRLF   Recognize CR, LF, & CRLF as newline sequences
+  PCRE_NEWLINE_CR        Recognize CR as the only newline sequence
+  PCRE_NEWLINE_CRLF      Recognize CRLF as the only newline sequence
+  PCRE_NEWLINE_LF        Recognize LF as the only newline sequence
+  PCRE_NOTBOL            Subject string is not the beginning of a line
+  PCRE_NOTEOL            Subject string is not the end of a line
+  PCRE_NOTEMPTY          An empty string is not a valid match
+  PCRE_NOTEMPTY_ATSTART  An empty string at the start of the subject
+                           is not a valid match
+  PCRE_NO_START_OPTIMIZE Do not do "start-match" optimizations
+  PCRE_NO_UTF16_CHECK    Do not check the subject for UTF-16
+                           validity (only relevant if PCRE_UTF16
+                           was set at compile time)
+  PCRE_NO_UTF8_CHECK     Do not check the subject for UTF-8
+                           validity (only relevant if PCRE_UTF8
+                           was set at compile time)
+  PCRE_PARTIAL           ) Return PCRE_ERROR_PARTIAL for a partial
+  PCRE_PARTIAL_SOFT      )   match if no full matches are found
+  PCRE_PARTIAL_HARD      Return PCRE_ERROR_PARTIAL for a partial match
+                           if that is found before a full match
+.sp
+For details of partial matching, see the
+.\" HREF
+\fBpcrepartial\fP
+.\"
+page. A \fBpcre_extra\fP structure contains the following fields:
+.sp
+  \fIflags\fP            Bits indicating which fields are set
+  \fIstudy_data\fP       Opaque data from \fBpcre[16]_study()\fP
+  \fImatch_limit\fP      Limit on internal resource use
+  \fImatch_limit_recursion\fP  Limit on internal recursion depth
+  \fIcallout_data\fP     Opaque data passed back to callouts
+  \fItables\fP           Points to character tables or is NULL
+  \fImark\fP             For passing back a *MARK pointer
+  \fIexecutable_jit\fP   Opaque data from JIT compilation
+.sp
+The flag bits are PCRE_EXTRA_STUDY_DATA, PCRE_EXTRA_MATCH_LIMIT,
+PCRE_EXTRA_MATCH_LIMIT_RECURSION, PCRE_EXTRA_CALLOUT_DATA,
+PCRE_EXTRA_TABLES, PCRE_EXTRA_MARK and PCRE_EXTRA_EXECUTABLE_JIT.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_free_study.3 b/8.31/doc/pcre_free_study.3
new file mode 100644
index 0000000..9fd5d80
--- /dev/null
+++ b/8.31/doc/pcre_free_study.3
@@ -0,0 +1,29 @@
+.TH PCRE_FREE_STUDY 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B void pcre_free_study(pcre_extra *\fIextra\fP);
+.PP
+.B void pcre16_free_study(pcre16_extra *\fIextra\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function is used to free the memory used for the data generated by a call
+to \fBpcre[16]_study()\fP when it is no longer needed. The argument must be the
+result of such a call.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_free_substring.3 b/8.31/doc/pcre_free_substring.3
new file mode 100644
index 0000000..dff5bb0
--- /dev/null
+++ b/8.31/doc/pcre_free_substring.3
@@ -0,0 +1,29 @@
+.TH PCRE_FREE_SUBSTRING 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B void pcre_free_substring(const char *\fIstringptr\fP);
+.PP
+.B void pcre16_free_substring(PCRE_SPTR16 \fIstringptr\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This is a convenience function for freeing the store obtained by a previous
+call to \fBpcre[16]_get_substring()\fP or \fBpcre[16]_get_named_substring()\fP.
+Its only argument is a pointer to the string.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_free_substring_list.3 b/8.31/doc/pcre_free_substring_list.3
new file mode 100644
index 0000000..a587759
--- /dev/null
+++ b/8.31/doc/pcre_free_substring_list.3
@@ -0,0 +1,29 @@
+.TH PCRE_FREE_SUBSTRING_LIST 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B void pcre_free_substring_list(const char **\fIstringptr\fP);
+.PP
+.B void pcre16_free_substring_list(PCRE_SPTR16 *\fIstringptr\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This is a convenience function for freeing the store obtained by a previous
+call to \fBpcre[16]_get_substring_list()\fP. Its only argument is a pointer to
+the list of string pointers.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_fullinfo.3 b/8.31/doc/pcre_fullinfo.3
new file mode 100644
index 0000000..1c2a58f
--- /dev/null
+++ b/8.31/doc/pcre_fullinfo.3
@@ -0,0 +1,78 @@
+.TH PCRE_FULLINFO 3 "21 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_fullinfo(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B int \fIwhat\fP, void *\fIwhere\fP);
+.PP
+.B int pcre16_fullinfo(const pcre16 *\fIcode\fP, "const pcre16_extra *\fIextra\fP,"
+.ti +5n
+.B int \fIwhat\fP, void *\fIwhere\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function returns information about a compiled pattern. Its arguments are:
+.sp
+  \fIcode\fP                      Compiled regular expression
+  \fIextra\fP                     Result of \fBpcre[16]_study()\fP or NULL
+  \fIwhat\fP                      What information is required
+  \fIwhere\fP                     Where to put the information
+.sp
+The following information is available:
+.sp
+  PCRE_INFO_BACKREFMAX      Number of highest back reference
+  PCRE_INFO_CAPTURECOUNT    Number of capturing subpatterns
+  PCRE_INFO_DEFAULT_TABLES  Pointer to default tables
+  PCRE_INFO_FIRSTBYTE       Fixed first data unit for a match, or
+                              -1 for start of string
+                                 or after newline, or
+                              -2 otherwise
+  PCRE_INFO_FIRSTTABLE      Table of first data units (after studying)
+  PCRE_INFO_HASCRORLF       Return 1 if explicit CR or LF matches exist
+  PCRE_INFO_JCHANGED        Return 1 if (?J) or (?-J) was used
+  PCRE_INFO_JIT             Return 1 after successful JIT compilation
+  PCRE_INFO_JITSIZE         Size of JIT compiled code
+  PCRE_INFO_LASTLITERAL     Literal last data unit required
+  PCRE_INFO_MINLENGTH       Lower bound length of matching strings
+  PCRE_INFO_NAMECOUNT       Number of named subpatterns
+  PCRE_INFO_NAMEENTRYSIZE   Size of name table entry
+  PCRE_INFO_NAMETABLE       Pointer to name table
+  PCRE_INFO_OKPARTIAL       Return 1 if partial matching can be tried
+                              (always returns 1 after release 8.00)
+  PCRE_INFO_OPTIONS         Option bits used for compilation
+  PCRE_INFO_SIZE            Size of compiled pattern
+  PCRE_INFO_STUDYSIZE       Size of study data
+.sp
+The \fIwhere\fP argument must point to an integer variable, except for the
+following \fIwhat\fP values:
+.sp
+  PCRE_INFO_DEFAULT_TABLES  const unsigned char *
+  PCRE_INFO_FIRSTTABLE      const unsigned char *
+  PCRE_INFO_NAMETABLE       PCRE_SPTR16           (16-bit library)
+  PCRE_INFO_NAMETABLE       const unsigned char * (8-bit library)
+  PCRE_INFO_OPTIONS         unsigned long int
+  PCRE_INFO_SIZE            size_t
+.sp
+The yield of the function is zero on success or:
+.sp
+  PCRE_ERROR_NULL           the argument \fIcode\fP was NULL
+                            the argument \fIwhere\fP was NULL
+  PCRE_ERROR_BADMAGIC       the "magic number" was not found
+  PCRE_ERROR_BADOPTION      the value of \fIwhat\fP was invalid
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_get_named_substring.3 b/8.31/doc/pcre_get_named_substring.3
new file mode 100644
index 0000000..88dd2da
--- /dev/null
+++ b/8.31/doc/pcre_get_named_substring.3
@@ -0,0 +1,54 @@
+.TH PCRE_GET_NAMED_SUBSTRING 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_get_named_substring(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, const char *\fIstringname\fP,
+.ti +5n
+.B const char **\fIstringptr\fP);
+.PP
+.B int pcre16_get_named_substring(const pcre16 *\fIcode\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, PCRE_SPTR16 \fIstringname\fP,
+.ti +5n
+.B PCRE_SPTR16 *\fIstringptr\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This is a convenience function for extracting a captured substring by name. The
+arguments are:
+.sp
+  \fIcode\fP          Compiled pattern
+  \fIsubject\fP       Subject that has been successfully matched
+  \fIovector\fP       Offset vector that \fBpcre[16]_exec()\fP used
+  \fIstringcount\fP   Value returned by \fBpcre[16]_exec()\fP
+  \fIstringname\fP    Name of the required substring
+  \fIstringptr\fP     Where to put the string pointer
+.sp
+The memory in which the substring is placed is obtained by calling
+\fBpcre[16]_malloc()\fP. The convenience function
+\fBpcre[16]_free_substring()\fP can be used to free it when it is no longer
+needed. The yield of the function is the length of the extracted substring,
+PCRE_ERROR_NOMEMORY if sufficient memory could not be obtained, or
+PCRE_ERROR_NOSUBSTRING if the string name is invalid.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_get_stringnumber.3 b/8.31/doc/pcre_get_stringnumber.3
new file mode 100644
index 0000000..79c52dc
--- /dev/null
+++ b/8.31/doc/pcre_get_stringnumber.3
@@ -0,0 +1,41 @@
+.TH PCRE_GET_STRINGNUMBER 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_get_stringnumber(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIname\fP);
+.PP
+.B int pcre16_get_stringnumber(const pcre16 *\fIcode\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIname\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This convenience function finds the number of a named substring capturing
+parenthesis in a compiled pattern. Its arguments are:
+.sp
+  \fIcode\fP    Compiled regular expression
+  \fIname\fP    Name whose number is required
+.sp
+The yield of the function is the number of the parenthesis if the name is
+found, or PCRE_ERROR_NOSUBSTRING otherwise. When duplicate names are allowed
+(PCRE_DUPNAMES is set), it is not defined which of the numbers is returned by
+\fBpcre[16]_get_stringnumber()\fP. You can obtain the complete list by calling
+\fBpcre[16]_get_stringtable_entries()\fP.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_get_stringtable_entries.3 b/8.31/doc/pcre_get_stringtable_entries.3
new file mode 100644
index 0000000..a192e83
--- /dev/null
+++ b/8.31/doc/pcre_get_stringtable_entries.3
@@ -0,0 +1,44 @@
+.TH PCRE_GET_STRINGTABLE_ENTRIES 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_get_stringtable_entries(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIname\fP, char **\fIfirst\fP, char **\fIlast\fP);
+.PP
+.B int pcre16_get_stringtable_entries(const pcre16 *\fIcode\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIname\fP, PCRE_UCHAR16 **\fIfirst\fP, PCRE_UCHAR16 **\fIlast\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This convenience function finds, for a compiled pattern, the first and last
+entries for a given name in the table that translates capturing parenthesis
+names into numbers. When names are required to be unique (PCRE_DUPNAMES is
+\fInot\fP set), it is usually easier to use \fBpcre[16]_get_stringnumber()\fP
+instead.
+.sp
+  \fIcode\fP    Compiled regular expression
+  \fIname\fP    Name whose entries required
+  \fIfirst\fP   Where to return a pointer to the first entry
+  \fIlast\fP    Where to return a pointer to the last entry
+.sp
+The yield of the function is the length of each entry, or
+PCRE_ERROR_NOSUBSTRING if none are found.
+.P
+There is a complete description of the PCRE native API, including the format of
+the table entries, in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page, and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_get_substring.3 b/8.31/doc/pcre_get_substring.3
new file mode 100644
index 0000000..3af1948
--- /dev/null
+++ b/8.31/doc/pcre_get_substring.3
@@ -0,0 +1,49 @@
+.TH PCRE_GET_SUBSTRING 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_get_substring(const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP,
+.ti +5n
+.B const char **\fIstringptr\fP);
+.PP
+.B int pcre16_get_substring(PCRE_SPTR16 \fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP,
+.ti +5n
+.B PCRE_SPTR16 *\fIstringptr\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This is a convenience function for extracting a captured substring. The
+arguments are:
+.sp
+  \fIsubject\fP       Subject that has been successfully matched
+  \fIovector\fP       Offset vector that \fBpcre[16]_exec()\fP used
+  \fIstringcount\fP   Value returned by \fBpcre[16]_exec()\fP
+  \fIstringnumber\fP  Number of the required substring
+  \fIstringptr\fP     Where to put the string pointer
+.sp
+The memory in which the substring is placed is obtained by calling
+\fBpcre[16]_malloc()\fP. The convenience function
+\fBpcre[16]_free_substring()\fP can be used to free it when it is no longer
+needed. The yield of the function is the length of the substring,
+PCRE_ERROR_NOMEMORY if sufficient memory could not be obtained, or
+PCRE_ERROR_NOSUBSTRING if the string number is invalid.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_get_substring_list.3 b/8.31/doc/pcre_get_substring_list.3
new file mode 100644
index 0000000..33c3a51
--- /dev/null
+++ b/8.31/doc/pcre_get_substring_list.3
@@ -0,0 +1,45 @@
+.TH PCRE_GET_SUBSTRING_LIST 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_get_substring_list(const char *\fIsubject\fP,
+.ti +5n
+.B int *\fIovector\fP, int \fIstringcount\fP, "const char ***\fIlistptr\fP);"
+.PP
+.B int pcre16_get_substring_list(PCRE_SPTR16 \fIsubject\fP,
+.ti +5n
+.B int *\fIovector\fP, int \fIstringcount\fP, "PCRE_SPTR16 **\fIlistptr\fP);"
+.
+.SH DESCRIPTION
+.rs
+.sp
+This is a convenience function for extracting a list of all the captured
+substrings. The arguments are:
+.sp
+  \fIsubject\fP       Subject that has been successfully matched
+  \fIovector\fP       Offset vector that \fBpcre[16]_exec\fP used
+  \fIstringcount\fP   Value returned by \fBpcre[16]_exec\fP
+  \fIlistptr\fP       Where to put a pointer to the list
+.sp
+The memory in which the substrings and the list are placed is obtained by
+calling \fBpcre[16]_malloc()\fP. The convenience function
+\fBpcre[16]_free_substring_list()\fP can be used to free it when it is no
+longer needed. A pointer to a list of pointers is put in the variable whose
+address is in \fIlistptr\fP. The list is terminated by a NULL pointer. The
+yield of the function is zero on success or PCRE_ERROR_NOMEMORY if sufficient
+memory could not be obtained.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_jit_stack_alloc.3 b/8.31/doc/pcre_jit_stack_alloc.3
new file mode 100644
index 0000000..b488d85
--- /dev/null
+++ b/8.31/doc/pcre_jit_stack_alloc.3
@@ -0,0 +1,41 @@
+.TH PCRE_JIT_STACK_ALLOC 3 "21 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B pcre_jit_stack *pcre_jit_stack_alloc(int \fIstartsize\fP,
+.ti +5n
+.B int \fImaxsize\fP);
+.PP
+.B pcre16_jit_stack *pcre16_jit_stack_alloc(int \fIstartsize\fP,
+.ti +5n
+.B int \fImaxsize\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function is used to create a stack for use by the code compiled by the JIT
+optimization of \fBpcre[16]_study()\fP. The arguments are a starting size for
+the stack, and a maximum size to which it is allowed to grow. The result can be
+passed to the JIT run-time code by \fBpcre[16]_assign_jit_stack()\fP, or that
+function can set up a callback for obtaining a stack. A maximum stack size of
+512K to 1M should be more than enough for any pattern. For more details, see
+the
+.\" HREF
+\fBpcrejit\fP
+.\"
+page.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_jit_stack_free.3 b/8.31/doc/pcre_jit_stack_free.3
new file mode 100644
index 0000000..9f6528b
--- /dev/null
+++ b/8.31/doc/pcre_jit_stack_free.3
@@ -0,0 +1,33 @@
+.TH PCRE_JIT_STACK_FREE 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B void pcre_jit_stack_free(pcre_jit_stack *\fIstack\fP);
+.PP
+.B void pcre16_jit_stack_free(pcre16_jit_stack *\fIstack\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function is used to free a JIT stack that was created by
+\fBpcre[16]_jit_stack_alloc()\fP when it is no longer needed. For more details,
+see the
+.\" HREF
+\fBpcrejit\fP
+.\"
+page.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_maketables.3 b/8.31/doc/pcre_maketables.3
new file mode 100644
index 0000000..73b188b
--- /dev/null
+++ b/8.31/doc/pcre_maketables.3
@@ -0,0 +1,31 @@
+.TH PCRE_MAKETABLES 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B const unsigned char *pcre_maketables(void);
+.PP
+.B const unsigned char *pcre16_maketables(void);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function builds a set of character tables for character values less than
+256. These can be passed to \fBpcre[16]_compile()\fP to override PCRE's
+internal, built-in tables (which were made by \fBpcre[16]_maketables()\fP when
+PCRE was compiled). You might want to do this if you are using a non-standard
+locale. The function yields a pointer to the tables.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_pattern_to_host_byte_order.3 b/8.31/doc/pcre_pattern_to_host_byte_order.3
new file mode 100644
index 0000000..8c34473
--- /dev/null
+++ b/8.31/doc/pcre_pattern_to_host_byte_order.3
@@ -0,0 +1,43 @@
+.TH PCRE_PATTERN_TO_HOST_BYTE_ORDER 3 "21 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_pattern_to_host_byte_order(pcre *\fIcode\fP,
+.ti +5n
+.B pcre_extra *\fIextra\fP, const unsigned char *\fItables\fP);
+.PP
+.B int pcre16_pattern_to_host_byte_order(pcre16 *\fIcode\fP,
+.ti +5n
+.B pcre16_extra *\fIextra\fP, const unsigned char *\fItables\fP);
+.
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function ensures that the bytes in 2-byte and 4-byte values in a compiled
+pattern are in the correct order for the current host. It is useful when a
+pattern that has been compiled on one host is transferred to another that might
+have different endianness. The arguments are:
+.sp
+  \fIcode\fP         A compiled regular expression
+  \fIextra\fP        Points to an associated \fBpcre[16]_extra\fP structure,
+                 or is NULL
+  \fItables\fP       Pointer to character tables, or NULL to
+                 set the built-in default
+.sp
+The result is 0 for success, a negative PCRE_ERROR_xxx value otherwise.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_refcount.3 b/8.31/doc/pcre_refcount.3
new file mode 100644
index 0000000..a30eecf
--- /dev/null
+++ b/8.31/doc/pcre_refcount.3
@@ -0,0 +1,34 @@
+.TH PCRE_REFCOUNT 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre_refcount(pcre *\fIcode\fP, int \fIadjust\fP);
+.PP
+.B int pcre16_refcount(pcre16 *\fIcode\fP, int \fIadjust\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function is used to maintain a reference count inside a data block that
+contains a compiled pattern. Its arguments are:
+.sp
+  \fIcode\fP                      Compiled regular expression
+  \fIadjust\fP                    Adjustment to reference value
+.sp
+The yield of the function is the adjusted reference value, which is constrained
+to lie between 0 and 65535.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_study.3 b/8.31/doc/pcre_study.3
new file mode 100644
index 0000000..13ea6c4
--- /dev/null
+++ b/8.31/doc/pcre_study.3
@@ -0,0 +1,52 @@
+.TH PCRE_STUDY 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B pcre_extra *pcre_study(const pcre *\fIcode\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP);
+.PP
+.B pcre16_extra *pcre16_study(const pcre16 *\fIcode\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function studies a compiled pattern, to see if additional information can
+be extracted that might speed up matching. Its arguments are:
+.sp
+  \fIcode\fP       A compiled regular expression
+  \fIoptions\fP    Options for \fBpcre[16]_study()\fP
+  \fIerrptr\fP     Where to put an error message
+.sp
+If the function succeeds, it returns a value that can be passed to
+\fBpcre[16]_exec()\fP or \fBpcre[16]_dfa_exec()\fP via their \fIextra\fP
+arguments.
+.P
+If the function returns NULL, either it could not find any additional
+information, or there was an error. You can tell the difference by looking at
+the error value. It is NULL in first case.
+.P
+The only option is PCRE_STUDY_JIT_COMPILE. It requests just-in-time compilation
+if possible. If PCRE has been compiled without JIT support, this option is
+ignored. See the
+.\" HREF
+\fBpcrejit\fP
+.\"
+page for further details.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_utf16_to_host_byte_order.3 b/8.31/doc/pcre_utf16_to_host_byte_order.3
new file mode 100644
index 0000000..8f0d2d4
--- /dev/null
+++ b/8.31/doc/pcre_utf16_to_host_byte_order.3
@@ -0,0 +1,46 @@
+.TH PCRE_UTF16_TO_HOST_BYTE_ORDER 3 "21 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B int pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *\fIoutput\fP,
+.ti +5n
+.B PCRE_SPTR16 \fIinput\fP, int \fIlength\fP, int *\fIhost_byte_order\fP,
+.ti +5n
+.B int \fIkeep_boms\fP);
+.
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function, which exists only in the 16-bit library, converts a UTF-16
+string to the correct order for the current host, taking account of any byte
+order marks (BOMs) within the string. Its arguments are:
+.sp
+  \fIoutput\fP           pointer to output buffer, may be the same as \fIinput\fP
+  \fIinput\fP            pointer to input buffer
+  \fIlength\fP           number of 16-bit units in the input, or negative for
+                     a zero-terminated string
+  \fIhost_byte_order\fP  a NULL value or a non-zero value pointed to means
+                     start in host byte order
+  \fIkeep_boms\fP        if non-zero, BOMs are copied to the output string
+.sp
+The result of the function is the number of 16-bit units placed into the output
+buffer, including the zero terminator if the string was zero-terminated.
+.P
+If \fIhost_byte_order\fP is not NULL, it is set to indicate the byte order that
+is current at the end of the string.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcre_version.3 b/8.31/doc/pcre_version.3
new file mode 100644
index 0000000..bcbd4f2
--- /dev/null
+++ b/8.31/doc/pcre_version.3
@@ -0,0 +1,29 @@
+.TH PCRE_VERSION 3 "13 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH SYNOPSIS
+.rs
+.sp
+.B #include <pcre.h>
+.PP
+.SM
+.B const char *pcre_version(void);
+.PP
+.B const char *pcre16_version(void);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This function (even in the 16-bit library) returns a zero-terminated, 8-bit
+character string that gives the version number of the PCRE library and the date
+of its release.
+.P
+There is a complete description of the PCRE native API in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page and a description of the POSIX API in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+page.
diff --git a/8.31/doc/pcreapi.3 b/8.31/doc/pcreapi.3
new file mode 100644
index 0000000..633f311
--- /dev/null
+++ b/8.31/doc/pcreapi.3
@@ -0,0 +1,2672 @@
+.TH PCREAPI 3 "04 May 2012" "PCRE 8.31"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.sp
+.B #include <pcre.h>
+.
+.
+.SH "PCRE NATIVE API BASIC FUNCTIONS"
+.rs
+.sp
+.SM
+.B pcre *pcre_compile(const char *\fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.PP
+.B pcre *pcre_compile2(const char *\fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B int *\fIerrorcodeptr\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.PP
+.B pcre_extra *pcre_study(const pcre *\fIcode\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP);
+.PP
+.B void pcre_free_study(pcre_extra *\fIextra\fP);
+.PP
+.B int pcre_exec(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B "const char *\fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP);
+.PP
+.B int pcre_dfa_exec(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B "const char *\fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP,
+.ti +5n
+.B int *\fIworkspace\fP, int \fIwscount\fP);
+.
+.
+.SH "PCRE NATIVE API STRING EXTRACTION FUNCTIONS"
+.rs
+.sp
+.B int pcre_copy_named_substring(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, const char *\fIstringname\fP,
+.ti +5n
+.B char *\fIbuffer\fP, int \fIbuffersize\fP);
+.PP
+.B int pcre_copy_substring(const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP, char *\fIbuffer\fP,
+.ti +5n
+.B int \fIbuffersize\fP);
+.PP
+.B int pcre_get_named_substring(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, const char *\fIstringname\fP,
+.ti +5n
+.B const char **\fIstringptr\fP);
+.PP
+.B int pcre_get_stringnumber(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIname\fP);
+.PP
+.B int pcre_get_stringtable_entries(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIname\fP, char **\fIfirst\fP, char **\fIlast\fP);
+.PP
+.B int pcre_get_substring(const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP,
+.ti +5n
+.B const char **\fIstringptr\fP);
+.PP
+.B int pcre_get_substring_list(const char *\fIsubject\fP,
+.ti +5n
+.B int *\fIovector\fP, int \fIstringcount\fP, "const char ***\fIlistptr\fP);"
+.PP
+.B void pcre_free_substring(const char *\fIstringptr\fP);
+.PP
+.B void pcre_free_substring_list(const char **\fIstringptr\fP);
+.
+.
+.SH "PCRE NATIVE API AUXILIARY FUNCTIONS"
+.rs
+.sp
+.B pcre_jit_stack *pcre_jit_stack_alloc(int \fIstartsize\fP, int \fImaxsize\fP);
+.PP
+.B void pcre_jit_stack_free(pcre_jit_stack *\fIstack\fP);
+.PP
+.B void pcre_assign_jit_stack(pcre_extra *\fIextra\fP,
+.ti +5n
+.B pcre_jit_callback \fIcallback\fP, void *\fIdata\fP);
+.PP
+.B const unsigned char *pcre_maketables(void);
+.PP
+.B int pcre_fullinfo(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B int \fIwhat\fP, void *\fIwhere\fP);
+.PP
+.B int pcre_refcount(pcre *\fIcode\fP, int \fIadjust\fP);
+.PP
+.B int pcre_config(int \fIwhat\fP, void *\fIwhere\fP);
+.PP
+.B const char *pcre_version(void);
+.PP
+.B int pcre_pattern_to_host_byte_order(pcre *\fIcode\fP,
+.ti +5n
+.B pcre_extra *\fIextra\fP, const unsigned char *\fItables\fP);
+.
+.
+.SH "PCRE NATIVE API INDIRECTED FUNCTIONS"
+.rs
+.sp
+.B void *(*pcre_malloc)(size_t);
+.PP
+.B void (*pcre_free)(void *);
+.PP
+.B void *(*pcre_stack_malloc)(size_t);
+.PP
+.B void (*pcre_stack_free)(void *);
+.PP
+.B int (*pcre_callout)(pcre_callout_block *);
+.
+.
+.SH "PCRE 8-BIT AND 16-BIT LIBRARIES"
+.rs
+.sp
+From release 8.30, PCRE can be compiled as a library for handling 16-bit
+character strings as well as, or instead of, the original library that handles
+8-bit character strings. To avoid too much complication, this document
+describes the 8-bit versions of the functions, with only occasional references
+to the 16-bit library.
+.P
+The 16-bit functions operate in the same way as their 8-bit counterparts; they
+just use different data types for their arguments and results, and their names
+start with \fBpcre16_\fP instead of \fBpcre_\fP. For every option that has UTF8
+in its name (for example, PCRE_UTF8), there is a corresponding 16-bit name with
+UTF8 replaced by UTF16. This facility is in fact just cosmetic; the 16-bit
+option names define the same bit values.
+.P
+References to bytes and UTF-8 in this document should be read as references to
+16-bit data quantities and UTF-16 when using the 16-bit library, unless
+specified otherwise. More details of the specific differences for the 16-bit
+library are given in the
+.\" HREF
+\fBpcre16\fP
+.\"
+page.
+.
+.
+.SH "PCRE API OVERVIEW"
+.rs
+.sp
+PCRE has its own native API, which is described in this document. There are
+also some wrapper functions (for the 8-bit library only) that correspond to the
+POSIX regular expression API, but they do not give access to all the
+functionality. They are described in the
+.\" HREF
+\fBpcreposix\fP
+.\"
+documentation. Both of these APIs define a set of C function calls. A C++
+wrapper (again for the 8-bit library only) is also distributed with PCRE. It is
+documented in the
+.\" HREF
+\fBpcrecpp\fP
+.\"
+page.
+.P
+The native API C function prototypes are defined in the header file
+\fBpcre.h\fP, and on Unix-like systems the (8-bit) library itself is called
+\fBlibpcre\fP. It can normally be accessed by adding \fB-lpcre\fP to the
+command for linking an application that uses PCRE. The header file defines the
+macros PCRE_MAJOR and PCRE_MINOR to contain the major and minor release numbers
+for the library. Applications can use these to include support for different
+releases of PCRE.
+.P
+In a Windows environment, if you want to statically link an application program
+against a non-dll \fBpcre.a\fP file, you must define PCRE_STATIC before
+including \fBpcre.h\fP or \fBpcrecpp.h\fP, because otherwise the
+\fBpcre_malloc()\fP and \fBpcre_free()\fP exported functions will be declared
+\fB__declspec(dllimport)\fP, with unwanted results.
+.P
+The functions \fBpcre_compile()\fP, \fBpcre_compile2()\fP, \fBpcre_study()\fP,
+and \fBpcre_exec()\fP are used for compiling and matching regular expressions
+in a Perl-compatible manner. A sample program that demonstrates the simplest
+way of using them is provided in the file called \fIpcredemo.c\fP in the PCRE
+source distribution. A listing of this program is given in the
+.\" HREF
+\fBpcredemo\fP
+.\"
+documentation, and the
+.\" HREF
+\fBpcresample\fP
+.\"
+documentation describes how to compile and run it.
+.P
+Just-in-time compiler support is an optional feature of PCRE that can be built
+in appropriate hardware environments. It greatly speeds up the matching
+performance of many patterns. Simple programs can easily request that it be
+used if available, by setting an option that is ignored when it is not
+relevant. More complicated programs might need to make use of the functions
+\fBpcre_jit_stack_alloc()\fP, \fBpcre_jit_stack_free()\fP, and
+\fBpcre_assign_jit_stack()\fP in order to control the JIT code's memory usage.
+These functions are discussed in the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation.
+.P
+A second matching function, \fBpcre_dfa_exec()\fP, which is not
+Perl-compatible, is also provided. This uses a different algorithm for the
+matching. The alternative algorithm finds all possible matches (at a given
+point in the subject), and scans the subject just once (unless there are
+lookbehind assertions). However, this algorithm does not return captured
+substrings. A description of the two matching algorithms and their advantages
+and disadvantages is given in the
+.\" HREF
+\fBpcrematching\fP
+.\"
+documentation.
+.P
+In addition to the main compiling and matching functions, there are convenience
+functions for extracting captured substrings from a subject string that is
+matched by \fBpcre_exec()\fP. They are:
+.sp
+  \fBpcre_copy_substring()\fP
+  \fBpcre_copy_named_substring()\fP
+  \fBpcre_get_substring()\fP
+  \fBpcre_get_named_substring()\fP
+  \fBpcre_get_substring_list()\fP
+  \fBpcre_get_stringnumber()\fP
+  \fBpcre_get_stringtable_entries()\fP
+.sp
+\fBpcre_free_substring()\fP and \fBpcre_free_substring_list()\fP are also
+provided, to free the memory used for extracted strings.
+.P
+The function \fBpcre_maketables()\fP is used to build a set of character tables
+in the current locale for passing to \fBpcre_compile()\fP, \fBpcre_exec()\fP,
+or \fBpcre_dfa_exec()\fP. This is an optional facility that is provided for
+specialist use. Most commonly, no special tables are passed, in which case
+internal tables that are generated when PCRE is built are used.
+.P
+The function \fBpcre_fullinfo()\fP is used to find out information about a
+compiled pattern. The function \fBpcre_version()\fP returns a pointer to a
+string containing the version of PCRE and its date of release.
+.P
+The function \fBpcre_refcount()\fP maintains a reference count in a data block
+containing a compiled pattern. This is provided for the benefit of
+object-oriented applications.
+.P
+The global variables \fBpcre_malloc\fP and \fBpcre_free\fP initially contain
+the entry points of the standard \fBmalloc()\fP and \fBfree()\fP functions,
+respectively. PCRE calls the memory management functions via these variables,
+so a calling program can replace them if it wishes to intercept the calls. This
+should be done before calling any PCRE functions.
+.P
+The global variables \fBpcre_stack_malloc\fP and \fBpcre_stack_free\fP are also
+indirections to memory management functions. These special functions are used
+only when PCRE is compiled to use the heap for remembering data, instead of
+recursive function calls, when running the \fBpcre_exec()\fP function. See the
+.\" HREF
+\fBpcrebuild\fP
+.\"
+documentation for details of how to do this. It is a non-standard way of
+building PCRE, for use in environments that have limited stacks. Because of the
+greater use of memory management, it runs more slowly. Separate functions are
+provided so that special-purpose external code can be used for this case. When
+used, these functions are always called in a stack-like manner (last obtained,
+first freed), and always for memory blocks of the same size. There is a
+discussion about PCRE's stack usage in the
+.\" HREF
+\fBpcrestack\fP
+.\"
+documentation.
+.P
+The global variable \fBpcre_callout\fP initially contains NULL. It can be set
+by the caller to a "callout" function, which PCRE will then call at specified
+points during a matching operation. Details are given in the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation.
+.
+.
+.\" HTML <a name="newlines"></a>
+.SH NEWLINES
+.rs
+.sp
+PCRE supports five different conventions for indicating line breaks in
+strings: a single CR (carriage return) character, a single LF (linefeed)
+character, the two-character sequence CRLF, any of the three preceding, or any
+Unicode newline sequence. The Unicode newline sequences are the three just
+mentioned, plus the single characters VT (vertical tab, U+000B), FF (form feed,
+U+000C), NEL (next line, U+0085), LS (line separator, U+2028), and PS
+(paragraph separator, U+2029).
+.P
+Each of the first three conventions is used by at least one operating system as
+its standard newline sequence. When PCRE is built, a default can be specified.
+The default default is LF, which is the Unix standard. When PCRE is run, the
+default can be overridden, either when a pattern is compiled, or when it is
+matched.
+.P
+At compile time, the newline convention can be specified by the \fIoptions\fP
+argument of \fBpcre_compile()\fP, or it can be specified by special text at the
+start of the pattern itself; this overrides any other settings. See the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+page for details of the special character sequences.
+.P
+In the PCRE documentation the word "newline" is used to mean "the character or
+pair of characters that indicate a line break". The choice of newline
+convention affects the handling of the dot, circumflex, and dollar
+metacharacters, the handling of #-comments in /x mode, and, when CRLF is a
+recognized line ending sequence, the match position advancement for a
+non-anchored pattern. There is more detail about this in the
+.\" HTML <a href="#execoptions">
+.\" </a>
+section on \fBpcre_exec()\fP options
+.\"
+below.
+.P
+The choice of newline convention does not affect the interpretation of
+the \en or \er escape sequences, nor does it affect what \eR matches, which is
+controlled in a similar way, but by separate options.
+.
+.
+.SH MULTITHREADING
+.rs
+.sp
+The PCRE functions can be used in multi-threading applications, with the
+proviso that the memory management functions pointed to by \fBpcre_malloc\fP,
+\fBpcre_free\fP, \fBpcre_stack_malloc\fP, and \fBpcre_stack_free\fP, and the
+callout function pointed to by \fBpcre_callout\fP, are shared by all threads.
+.P
+The compiled form of a regular expression is not altered during matching, so
+the same compiled pattern can safely be used by several threads at once.
+.P
+If the just-in-time optimization feature is being used, it needs separate
+memory stack areas for each thread. See the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation for more details.
+.
+.
+.SH "SAVING PRECOMPILED PATTERNS FOR LATER USE"
+.rs
+.sp
+The compiled form of a regular expression can be saved and re-used at a later
+time, possibly by a different program, and even on a host other than the one on
+which it was compiled. Details are given in the
+.\" HREF
+\fBpcreprecompile\fP
+.\"
+documentation, which includes a description of the
+\fBpcre_pattern_to_host_byte_order()\fP function. However, compiling a regular
+expression with one version of PCRE for use with a different version is not
+guaranteed to work and may cause crashes.
+.
+.
+.SH "CHECKING BUILD-TIME OPTIONS"
+.rs
+.sp
+.B int pcre_config(int \fIwhat\fP, void *\fIwhere\fP);
+.PP
+The function \fBpcre_config()\fP makes it possible for a PCRE client to
+discover which optional features have been compiled into the PCRE library. The
+.\" HREF
+\fBpcrebuild\fP
+.\"
+documentation has more details about these optional features.
+.P
+The first argument for \fBpcre_config()\fP is an integer, specifying which
+information is required; the second argument is a pointer to a variable into
+which the information is placed. The returned value is zero on success, or the
+negative error code PCRE_ERROR_BADOPTION if the value in the first argument is
+not recognized. The following information is available:
+.sp
+  PCRE_CONFIG_UTF8
+.sp
+The output is an integer that is set to one if UTF-8 support is available;
+otherwise it is set to zero. If this option is given to the 16-bit version of
+this function, \fBpcre16_config()\fP, the result is PCRE_ERROR_BADOPTION.
+.sp
+  PCRE_CONFIG_UTF16
+.sp
+The output is an integer that is set to one if UTF-16 support is available;
+otherwise it is set to zero. This value should normally be given to the 16-bit
+version of this function, \fBpcre16_config()\fP. If it is given to the 8-bit
+version of this function, the result is PCRE_ERROR_BADOPTION.
+.sp
+  PCRE_CONFIG_UNICODE_PROPERTIES
+.sp
+The output is an integer that is set to one if support for Unicode character
+properties is available; otherwise it is set to zero.
+.sp
+  PCRE_CONFIG_JIT
+.sp
+The output is an integer that is set to one if support for just-in-time
+compiling is available; otherwise it is set to zero.
+.sp
+  PCRE_CONFIG_JITTARGET
+.sp
+The output is a pointer to a zero-terminated "const char *" string. If JIT
+support is available, the string contains the name of the architecture for
+which the JIT compiler is configured, for example "x86 32bit (little endian +
+unaligned)". If JIT support is not available, the result is NULL.
+.sp
+  PCRE_CONFIG_NEWLINE
+.sp
+The output is an integer whose value specifies the default character sequence
+that is recognized as meaning "newline". The four values that are supported
+are: 10 for LF, 13 for CR, 3338 for CRLF, -2 for ANYCRLF, and -1 for ANY.
+Though they are derived from ASCII, the same values are returned in EBCDIC
+environments. The default should normally correspond to the standard sequence
+for your operating system.
+.sp
+  PCRE_CONFIG_BSR
+.sp
+The output is an integer whose value indicates what character sequences the \eR
+escape sequence matches by default. A value of 0 means that \eR matches any
+Unicode line ending sequence; a value of 1 means that \eR matches only CR, LF,
+or CRLF. The default can be overridden when a pattern is compiled or matched.
+.sp
+  PCRE_CONFIG_LINK_SIZE
+.sp
+The output is an integer that contains the number of bytes used for internal
+linkage in compiled regular expressions. For the 8-bit library, the value can
+be 2, 3, or 4. For the 16-bit library, the value is either 2 or 4 and is still
+a number of bytes. The default value of 2 is sufficient for all but the most
+massive patterns, since it allows the compiled pattern to be up to 64K in size.
+Larger values allow larger regular expressions to be compiled, at the expense
+of slower matching.
+.sp
+  PCRE_CONFIG_POSIX_MALLOC_THRESHOLD
+.sp
+The output is an integer that contains the threshold above which the POSIX
+interface uses \fBmalloc()\fP for output vectors. Further details are given in
+the
+.\" HREF
+\fBpcreposix\fP
+.\"
+documentation.
+.sp
+  PCRE_CONFIG_MATCH_LIMIT
+.sp
+The output is a long integer that gives the default limit for the number of
+internal matching function calls in a \fBpcre_exec()\fP execution. Further
+details are given with \fBpcre_exec()\fP below.
+.sp
+  PCRE_CONFIG_MATCH_LIMIT_RECURSION
+.sp
+The output is a long integer that gives the default limit for the depth of
+recursion when calling the internal matching function in a \fBpcre_exec()\fP
+execution. Further details are given with \fBpcre_exec()\fP below.
+.sp
+  PCRE_CONFIG_STACKRECURSE
+.sp
+The output is an integer that is set to one if internal recursion when running
+\fBpcre_exec()\fP is implemented by recursive function calls that use the stack
+to remember their state. This is the usual way that PCRE is compiled. The
+output is zero if PCRE was compiled to use blocks of data on the heap instead
+of recursive function calls. In this case, \fBpcre_stack_malloc\fP and
+\fBpcre_stack_free\fP are called to manage memory blocks on the heap, thus
+avoiding the use of the stack.
+.
+.
+.SH "COMPILING A PATTERN"
+.rs
+.sp
+.B pcre *pcre_compile(const char *\fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.sp
+.B pcre *pcre_compile2(const char *\fIpattern\fP, int \fIoptions\fP,
+.ti +5n
+.B int *\fIerrorcodeptr\fP,
+.ti +5n
+.B const char **\fIerrptr\fP, int *\fIerroffset\fP,
+.ti +5n
+.B const unsigned char *\fItableptr\fP);
+.P
+Either of the functions \fBpcre_compile()\fP or \fBpcre_compile2()\fP can be
+called to compile a pattern into an internal form. The only difference between
+the two interfaces is that \fBpcre_compile2()\fP has an additional argument,
+\fIerrorcodeptr\fP, via which a numerical error code can be returned. To avoid
+too much repetition, we refer just to \fBpcre_compile()\fP below, but the
+information applies equally to \fBpcre_compile2()\fP.
+.P
+The pattern is a C string terminated by a binary zero, and is passed in the
+\fIpattern\fP argument. A pointer to a single block of memory that is obtained
+via \fBpcre_malloc\fP is returned. This contains the compiled code and related
+data. The \fBpcre\fP type is defined for the returned block; this is a typedef
+for a structure whose contents are not externally defined. It is up to the
+caller to free the memory (via \fBpcre_free\fP) when it is no longer required.
+.P
+Although the compiled code of a PCRE regex is relocatable, that is, it does not
+depend on memory location, the complete \fBpcre\fP data block is not
+fully relocatable, because it may contain a copy of the \fItableptr\fP
+argument, which is an address (see below).
+.P
+The \fIoptions\fP argument contains various bit settings that affect the
+compilation. It should be zero if no options are required. The available
+options are described below. Some of them (in particular, those that are
+compatible with Perl, but some others as well) can also be set and unset from
+within the pattern (see the detailed description in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation). For those options that can be different in different parts of
+the pattern, the contents of the \fIoptions\fP argument specifies their
+settings at the start of compilation and execution. The PCRE_ANCHORED,
+PCRE_BSR_\fIxxx\fP, PCRE_NEWLINE_\fIxxx\fP, PCRE_NO_UTF8_CHECK, and
+PCRE_NO_START_OPTIMIZE options can be set at the time of matching as well as at
+compile time.
+.P
+If \fIerrptr\fP is NULL, \fBpcre_compile()\fP returns NULL immediately.
+Otherwise, if compilation of a pattern fails, \fBpcre_compile()\fP returns
+NULL, and sets the variable pointed to by \fIerrptr\fP to point to a textual
+error message. This is a static string that is part of the library. You must
+not try to free it. Normally, the offset from the start of the pattern to the
+byte that was being processed when the error was discovered is placed in the
+variable pointed to by \fIerroffset\fP, which must not be NULL (if it is, an
+immediate error is given). However, for an invalid UTF-8 string, the offset is
+that of the first byte of the failing character.
+.P
+Some errors are not detected until the whole pattern has been scanned; in these
+cases, the offset passed back is the length of the pattern. Note that the
+offset is in bytes, not characters, even in UTF-8 mode. It may sometimes point
+into the middle of a UTF-8 character.
+.P
+If \fBpcre_compile2()\fP is used instead of \fBpcre_compile()\fP, and the
+\fIerrorcodeptr\fP argument is not NULL, a non-zero error code number is
+returned via this argument in the event of an error. This is in addition to the
+textual error message. Error codes and messages are listed below.
+.P
+If the final argument, \fItableptr\fP, is NULL, PCRE uses a default set of
+character tables that are built when PCRE is compiled, using the default C
+locale. Otherwise, \fItableptr\fP must be an address that is the result of a
+call to \fBpcre_maketables()\fP. This value is stored with the compiled
+pattern, and used again by \fBpcre_exec()\fP, unless another table pointer is
+passed to it. For more discussion, see the section on locale support below.
+.P
+This code fragment shows a typical straightforward call to \fBpcre_compile()\fP:
+.sp
+  pcre *re;
+  const char *error;
+  int erroffset;
+  re = pcre_compile(
+    "^A.*Z",          /* the pattern */
+    0,                /* default options */
+    &error,           /* for error message */
+    &erroffset,       /* for error offset */
+    NULL);            /* use default character tables */
+.sp
+The following names for option bits are defined in the \fBpcre.h\fP header
+file:
+.sp
+  PCRE_ANCHORED
+.sp
+If this bit is set, the pattern is forced to be "anchored", that is, it is
+constrained to match only at the first matching point in the string that is
+being searched (the "subject string"). This effect can also be achieved by
+appropriate constructs in the pattern itself, which is the only way to do it in
+Perl.
+.sp
+  PCRE_AUTO_CALLOUT
+.sp
+If this bit is set, \fBpcre_compile()\fP automatically inserts callout items,
+all with number 255, before each pattern item. For discussion of the callout
+facility, see the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation.
+.sp
+  PCRE_BSR_ANYCRLF
+  PCRE_BSR_UNICODE
+.sp
+These options (which are mutually exclusive) control what the \eR escape
+sequence matches. The choice is either to match only CR, LF, or CRLF, or to
+match any Unicode newline sequence. The default is specified when PCRE is
+built. It can be overridden from within the pattern, or by setting an option
+when a compiled pattern is matched.
+.sp
+  PCRE_CASELESS
+.sp
+If this bit is set, letters in the pattern match both upper and lower case
+letters. It is equivalent to Perl's /i option, and it can be changed within a
+pattern by a (?i) option setting. In UTF-8 mode, PCRE always understands the
+concept of case for characters whose values are less than 128, so caseless
+matching is always possible. For characters with higher values, the concept of
+case is supported if PCRE is compiled with Unicode property support, but not
+otherwise. If you want to use caseless matching for characters 128 and above,
+you must ensure that PCRE is compiled with Unicode property support as well as
+with UTF-8 support.
+.sp
+  PCRE_DOLLAR_ENDONLY
+.sp
+If this bit is set, a dollar metacharacter in the pattern matches only at the
+end of the subject string. Without this option, a dollar also matches
+immediately before a newline at the end of the string (but not before any other
+newlines). The PCRE_DOLLAR_ENDONLY option is ignored if PCRE_MULTILINE is set.
+There is no equivalent to this option in Perl, and no way to set it within a
+pattern.
+.sp
+  PCRE_DOTALL
+.sp
+If this bit is set, a dot metacharacter in the pattern matches a character of
+any value, including one that indicates a newline. However, it only ever
+matches one character, even if newlines are coded as CRLF. Without this option,
+a dot does not match when the current position is at a newline. This option is
+equivalent to Perl's /s option, and it can be changed within a pattern by a
+(?s) option setting. A negative class such as [^a] always matches newline
+characters, independent of the setting of this option.
+.sp
+  PCRE_DUPNAMES
+.sp
+If this bit is set, names used to identify capturing subpatterns need not be
+unique. This can be helpful for certain types of pattern when it is known that
+only one instance of the named subpattern can ever be matched. There are more
+details of named subpatterns below; see also the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation.
+.sp
+  PCRE_EXTENDED
+.sp
+If this bit is set, white space data characters in the pattern are totally
+ignored except when escaped or inside a character class. White space does not
+include the VT character (code 11). In addition, characters between an
+unescaped # outside a character class and the next newline, inclusive, are also
+ignored. This is equivalent to Perl's /x option, and it can be changed within a
+pattern by a (?x) option setting.
+.P
+Which characters are interpreted as newlines is controlled by the options
+passed to \fBpcre_compile()\fP or by a special sequence at the start of the
+pattern, as described in the section entitled
+.\" HTML <a href="pcrepattern.html#newlines">
+.\" </a>
+"Newline conventions"
+.\"
+in the \fBpcrepattern\fP documentation. Note that the end of this type of
+comment is a literal newline sequence in the pattern; escape sequences that
+happen to represent a newline do not count.
+.P
+This option makes it possible to include comments inside complicated patterns.
+Note, however, that this applies only to data characters. White space characters
+may never appear within special character sequences in a pattern, for example
+within the sequence (?( that introduces a conditional subpattern.
+.sp
+  PCRE_EXTRA
+.sp
+This option was invented in order to turn on additional functionality of PCRE
+that is incompatible with Perl, but it is currently of very little use. When
+set, any backslash in a pattern that is followed by a letter that has no
+special meaning causes an error, thus reserving these combinations for future
+expansion. By default, as in Perl, a backslash followed by a letter with no
+special meaning is treated as a literal. (Perl can, however, be persuaded to
+give an error for this, by running it with the -w option.) There are at present
+no other features controlled by this option. It can also be set by a (?X)
+option setting within a pattern.
+.sp
+  PCRE_FIRSTLINE
+.sp
+If this option is set, an unanchored pattern is required to match before or at
+the first newline in the subject string, though the matched text may continue
+over the newline.
+.sp
+  PCRE_JAVASCRIPT_COMPAT
+.sp
+If this option is set, PCRE's behaviour is changed in some ways so that it is
+compatible with JavaScript rather than Perl. The changes are as follows:
+.P
+(1) A lone closing square bracket in a pattern causes a compile-time error,
+because this is illegal in JavaScript (by default it is treated as a data
+character). Thus, the pattern AB]CD becomes illegal when this option is set.
+.P
+(2) At run time, a back reference to an unset subpattern group matches an empty
+string (by default this causes the current matching alternative to fail). A
+pattern such as (\e1)(a) succeeds when this option is set (assuming it can find
+an "a" in the subject), whereas it fails by default, for Perl compatibility.
+.P
+(3) \eU matches an upper case "U" character; by default \eU causes a compile
+time error (Perl uses \eU to upper case subsequent characters).
+.P
+(4) \eu matches a lower case "u" character unless it is followed by four
+hexadecimal digits, in which case the hexadecimal number defines the code point
+to match. By default, \eu causes a compile time error (Perl uses it to upper
+case the following character).
+.P
+(5) \ex matches a lower case "x" character unless it is followed by two
+hexadecimal digits, in which case the hexadecimal number defines the code point
+to match. By default, as in Perl, a hexadecimal number is always expected after
+\ex, but it may have zero, one, or two digits (so, for example, \exz matches a
+binary zero character followed by z).
+.sp
+  PCRE_MULTILINE
+.sp
+By default, PCRE treats the subject string as consisting of a single line of
+characters (even if it actually contains newlines). The "start of line"
+metacharacter (^) matches only at the start of the string, while the "end of
+line" metacharacter ($) matches only at the end of the string, or before a
+terminating newline (unless PCRE_DOLLAR_ENDONLY is set). This is the same as
+Perl.
+.P
+When PCRE_MULTILINE it is set, the "start of line" and "end of line" constructs
+match immediately following or immediately before internal newlines in the
+subject string, respectively, as well as at the very start and end. This is
+equivalent to Perl's /m option, and it can be changed within a pattern by a
+(?m) option setting. If there are no newlines in a subject string, or no
+occurrences of ^ or $ in a pattern, setting PCRE_MULTILINE has no effect.
+.sp
+  PCRE_NEWLINE_CR
+  PCRE_NEWLINE_LF
+  PCRE_NEWLINE_CRLF
+  PCRE_NEWLINE_ANYCRLF
+  PCRE_NEWLINE_ANY
+.sp
+These options override the default newline definition that was chosen when PCRE
+was built. Setting the first or the second specifies that a newline is
+indicated by a single character (CR or LF, respectively). Setting
+PCRE_NEWLINE_CRLF specifies that a newline is indicated by the two-character
+CRLF sequence. Setting PCRE_NEWLINE_ANYCRLF specifies that any of the three
+preceding sequences should be recognized. Setting PCRE_NEWLINE_ANY specifies
+that any Unicode newline sequence should be recognized. The Unicode newline
+sequences are the three just mentioned, plus the single characters VT (vertical
+tab, U+000B), FF (form feed, U+000C), NEL (next line, U+0085), LS (line
+separator, U+2028), and PS (paragraph separator, U+2029). For the 8-bit
+library, the last two are recognized only in UTF-8 mode.
+.P
+The newline setting in the options word uses three bits that are treated
+as a number, giving eight possibilities. Currently only six are used (default
+plus the five values above). This means that if you set more than one newline
+option, the combination may or may not be sensible. For example,
+PCRE_NEWLINE_CR with PCRE_NEWLINE_LF is equivalent to PCRE_NEWLINE_CRLF, but
+other combinations may yield unused numbers and cause an error.
+.P
+The only time that a line break in a pattern is specially recognized when
+compiling is when PCRE_EXTENDED is set. CR and LF are white space characters,
+and so are ignored in this mode. Also, an unescaped # outside a character class
+indicates a comment that lasts until after the next line break sequence. In
+other circumstances, line break sequences in patterns are treated as literal
+data.
+.P
+The newline option that is set at compile time becomes the default that is used
+for \fBpcre_exec()\fP and \fBpcre_dfa_exec()\fP, but it can be overridden.
+.sp
+  PCRE_NO_AUTO_CAPTURE
+.sp
+If this option is set, it disables the use of numbered capturing parentheses in
+the pattern. Any opening parenthesis that is not followed by ? behaves as if it
+were followed by ?: but named parentheses can still be used for capturing (and
+they acquire numbers in the usual way). There is no equivalent of this option
+in Perl.
+.sp
+  NO_START_OPTIMIZE
+.sp
+This is an option that acts at matching time; that is, it is really an option
+for \fBpcre_exec()\fP or \fBpcre_dfa_exec()\fP. If it is set at compile time,
+it is remembered with the compiled pattern and assumed at matching time. For
+details see the discussion of PCRE_NO_START_OPTIMIZE
+.\" HTML <a href="#execoptions">
+.\" </a>
+below.
+.\"
+.sp
+  PCRE_UCP
+.sp
+This option changes the way PCRE processes \eB, \eb, \eD, \ed, \eS, \es, \eW,
+\ew, and some of the POSIX character classes. By default, only ASCII characters
+are recognized, but if PCRE_UCP is set, Unicode properties are used instead to
+classify characters. More details are given in the section on
+.\" HTML <a href="pcre.html#genericchartypes">
+.\" </a>
+generic character types
+.\"
+in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+page. If you set PCRE_UCP, matching one of the items it affects takes much
+longer. The option is available only if PCRE has been compiled with Unicode
+property support.
+.sp
+  PCRE_UNGREEDY
+.sp
+This option inverts the "greediness" of the quantifiers so that they are not
+greedy by default, but become greedy if followed by "?". It is not compatible
+with Perl. It can also be set by a (?U) option setting within the pattern.
+.sp
+  PCRE_UTF8
+.sp
+This option causes PCRE to regard both the pattern and the subject as strings
+of UTF-8 characters instead of single-byte strings. However, it is available
+only when PCRE is built to include UTF support. If not, the use of this option
+provokes an error. Details of how this option changes the behaviour of PCRE are
+given in the
+.\" HREF
+\fBpcreunicode\fP
+.\"
+page.
+.sp
+  PCRE_NO_UTF8_CHECK
+.sp
+When PCRE_UTF8 is set, the validity of the pattern as a UTF-8
+string is automatically checked. There is a discussion about the
+.\" HTML <a href="pcreunicode.html#utf8strings">
+.\" </a>
+validity of UTF-8 strings
+.\"
+in the
+.\" HREF
+\fBpcreunicode\fP
+.\"
+page. If an invalid UTF-8 sequence is found, \fBpcre_compile()\fP returns an
+error. If you already know that your pattern is valid, and you want to skip
+this check for performance reasons, you can set the PCRE_NO_UTF8_CHECK option.
+When it is set, the effect of passing an invalid UTF-8 string as a pattern is
+undefined. It may cause your program to crash. Note that this option can also
+be passed to \fBpcre_exec()\fP and \fBpcre_dfa_exec()\fP, to suppress the
+validity checking of subject strings.
+.
+.
+.SH "COMPILATION ERROR CODES"
+.rs
+.sp
+The following table lists the error codes than may be returned by
+\fBpcre_compile2()\fP, along with the error messages that may be returned by
+both compiling functions. Note that error messages are always 8-bit ASCII
+strings, even in 16-bit mode. As PCRE has developed, some error codes have
+fallen out of use. To avoid confusion, they have not been re-used.
+.sp
+   0  no error
+   1  \e at end of pattern
+   2  \ec at end of pattern
+   3  unrecognized character follows \e
+   4  numbers out of order in {} quantifier
+   5  number too big in {} quantifier
+   6  missing terminating ] for character class
+   7  invalid escape sequence in character class
+   8  range out of order in character class
+   9  nothing to repeat
+  10  [this code is not in use]
+  11  internal error: unexpected repeat
+  12  unrecognized character after (? or (?-
+  13  POSIX named classes are supported only within a class
+  14  missing )
+  15  reference to non-existent subpattern
+  16  erroffset passed as NULL
+  17  unknown option bit(s) set
+  18  missing ) after comment
+  19  [this code is not in use]
+  20  regular expression is too large
+  21  failed to get memory
+  22  unmatched parentheses
+  23  internal error: code overflow
+  24  unrecognized character after (?<
+  25  lookbehind assertion is not fixed length
+  26  malformed number or name after (?(
+  27  conditional group contains more than two branches
+  28  assertion expected after (?(
+  29  (?R or (?[+-]digits must be followed by )
+  30  unknown POSIX class name
+  31  POSIX collating elements are not supported
+  32  this version of PCRE is compiled without UTF support
+  33  [this code is not in use]
+  34  character value in \ex{...} sequence is too large
+  35  invalid condition (?(0)
+  36  \eC not allowed in lookbehind assertion
+  37  PCRE does not support \eL, \el, \eN{name}, \eU, or \eu
+  38  number after (?C is > 255
+  39  closing ) for (?C expected
+  40  recursive call could loop indefinitely
+  41  unrecognized character after (?P
+  42  syntax error in subpattern name (missing terminator)
+  43  two named subpatterns have the same name
+  44  invalid UTF-8 string (specifically UTF-8)
+  45  support for \eP, \ep, and \eX has not been compiled
+  46  malformed \eP or \ep sequence
+  47  unknown property name after \eP or \ep
+  48  subpattern name is too long (maximum 32 characters)
+  49  too many named subpatterns (maximum 10000)
+  50  [this code is not in use]
+  51  octal value is greater than \e377 in 8-bit non-UTF-8 mode
+  52  internal error: overran compiling workspace
+  53  internal error: previously-checked referenced subpattern
+        not found
+  54  DEFINE group contains more than one branch
+  55  repeating a DEFINE group is not allowed
+  56  inconsistent NEWLINE options
+  57  \eg is not followed by a braced, angle-bracketed, or quoted
+        name/number or by a plain number
+  58  a numbered reference must not be zero
+  59  an argument is not allowed for (*ACCEPT), (*FAIL), or (*COMMIT)
+  60  (*VERB) not recognized
+  61  number is too big
+  62  subpattern name expected
+  63  digit expected after (?+
+  64  ] is an invalid data character in JavaScript compatibility mode
+  65  different names for subpatterns of the same number are
+        not allowed
+  66  (*MARK) must have an argument
+  67  this version of PCRE is not compiled with Unicode property
+        support
+  68  \ec must be followed by an ASCII character
+  69  \ek is not followed by a braced, angle-bracketed, or quoted name
+  70  internal error: unknown opcode in find_fixedlength()
+  71  \eN is not supported in a class
+  72  too many forward references
+  73  disallowed Unicode code point (>= 0xd800 && <= 0xdfff)
+  74  invalid UTF-16 string (specifically UTF-16)
+  75  name is too long in (*MARK), (*PRUNE), (*SKIP), or (*THEN)
+  76  character value in \eu.... sequence is too large
+.sp
+The numbers 32 and 10000 in errors 48 and 49 are defaults; different values may
+be used if the limits were changed when PCRE was built.
+.
+.
+.\" HTML <a name="studyingapattern"></a>
+.SH "STUDYING A PATTERN"
+.rs
+.sp
+.B pcre_extra *pcre_study(const pcre *\fIcode\fP, int \fIoptions\fP
+.ti +5n
+.B const char **\fIerrptr\fP);
+.PP
+If a compiled pattern is going to be used several times, it is worth spending
+more time analyzing it in order to speed up the time taken for matching. The
+function \fBpcre_study()\fP takes a pointer to a compiled pattern as its first
+argument. If studying the pattern produces additional information that will
+help speed up matching, \fBpcre_study()\fP returns a pointer to a
+\fBpcre_extra\fP block, in which the \fIstudy_data\fP field points to the
+results of the study.
+.P
+The returned value from \fBpcre_study()\fP can be passed directly to
+\fBpcre_exec()\fP or \fBpcre_dfa_exec()\fP. However, a \fBpcre_extra\fP block
+also contains other fields that can be set by the caller before the block is
+passed; these are described
+.\" HTML <a href="#extradata">
+.\" </a>
+below
+.\"
+in the section on matching a pattern.
+.P
+If studying the pattern does not produce any useful information,
+\fBpcre_study()\fP returns NULL. In that circumstance, if the calling program
+wants to pass any of the other fields to \fBpcre_exec()\fP or
+\fBpcre_dfa_exec()\fP, it must set up its own \fBpcre_extra\fP block.
+.P
+The second argument of \fBpcre_study()\fP contains option bits. There are three
+options:
+.sp
+  PCRE_STUDY_JIT_COMPILE
+  PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+  PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+.sp
+If any of these are set, and the just-in-time compiler is available, the
+pattern is further compiled into machine code that executes much faster than
+the \fBpcre_exec()\fP interpretive matching function. If the just-in-time
+compiler is not available, these options are ignored. All other bits in the
+\fIoptions\fP argument must be zero.
+.P
+JIT compilation is a heavyweight optimization. It can take some time for
+patterns to be analyzed, and for one-off matches and simple patterns the
+benefit of faster execution might be offset by a much slower study time.
+Not all patterns can be optimized by the JIT compiler. For those that cannot be
+handled, matching automatically falls back to the \fBpcre_exec()\fP
+interpreter. For more details, see the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation.
+.P
+The third argument for \fBpcre_study()\fP is a pointer for an error message. If
+studying succeeds (even if no data is returned), the variable it points to is
+set to NULL. Otherwise it is set to point to a textual error message. This is a
+static string that is part of the library. You must not try to free it. You
+should test the error pointer for NULL after calling \fBpcre_study()\fP, to be
+sure that it has run successfully.
+.P
+When you are finished with a pattern, you can free the memory used for the
+study data by calling \fBpcre_free_study()\fP. This function was added to the
+API for release 8.20. For earlier versions, the memory could be freed with
+\fBpcre_free()\fP, just like the pattern itself. This will still work in cases
+where JIT optimization is not used, but it is advisable to change to the new
+function when convenient.
+.P
+This is a typical way in which \fBpcre_study\fP() is used (except that in a
+real application there should be tests for errors):
+.sp
+  int rc;
+  pcre *re;
+  pcre_extra *sd;
+  re = pcre_compile("pattern", 0, &error, &erroroffset, NULL);
+  sd = pcre_study(
+    re,             /* result of pcre_compile() */
+    0,              /* no options */
+    &error);        /* set to NULL or points to a message */
+  rc = pcre_exec(   /* see below for details of pcre_exec() options */
+    re, sd, "subject", 7, 0, 0, ovector, 30);
+  ...
+  pcre_free_study(sd);
+  pcre_free(re);
+.sp
+Studying a pattern does two things: first, a lower bound for the length of
+subject string that is needed to match the pattern is computed. This does not
+mean that there are any strings of that length that match, but it does
+guarantee that no shorter strings match. The value is used by
+\fBpcre_exec()\fP and \fBpcre_dfa_exec()\fP to avoid wasting time by trying to
+match strings that are shorter than the lower bound. You can find out the value
+in a calling program via the \fBpcre_fullinfo()\fP function.
+.P
+Studying a pattern is also useful for non-anchored patterns that do not have a
+single fixed starting character. A bitmap of possible starting bytes is
+created. This speeds up finding a position in the subject at which to start
+matching. (In 16-bit mode, the bitmap is used for 16-bit values less than 256.)
+.P
+These two optimizations apply to both \fBpcre_exec()\fP and
+\fBpcre_dfa_exec()\fP, and the information is also used by the JIT compiler.
+The optimizations can be disabled by setting the PCRE_NO_START_OPTIMIZE option
+when calling \fBpcre_exec()\fP or \fBpcre_dfa_exec()\fP, but if this is done,
+JIT execution is also disabled. You might want to do this if your pattern
+contains callouts or (*MARK) and you want to make use of these facilities in
+cases where matching fails. See the discussion of PCRE_NO_START_OPTIMIZE
+.\" HTML <a href="#execoptions">
+.\" </a>
+below.
+.\"
+.
+.
+.\" HTML <a name="localesupport"></a>
+.SH "LOCALE SUPPORT"
+.rs
+.sp
+PCRE handles caseless matching, and determines whether characters are letters,
+digits, or whatever, by reference to a set of tables, indexed by character
+value. When running in UTF-8 mode, this applies only to characters
+with codes less than 128. By default, higher-valued codes never match escapes
+such as \ew or \ed, but they can be tested with \ep if PCRE is built with
+Unicode character property support. Alternatively, the PCRE_UCP option can be
+set at compile time; this causes \ew and friends to use Unicode property
+support instead of built-in tables. The use of locales with Unicode is
+discouraged. If you are handling characters with codes greater than 128, you
+should either use UTF-8 and Unicode, or use locales, but not try to mix the
+two.
+.P
+PCRE contains an internal set of tables that are used when the final argument
+of \fBpcre_compile()\fP is NULL. These are sufficient for many applications.
+Normally, the internal tables recognize only ASCII characters. However, when
+PCRE is built, it is possible to cause the internal tables to be rebuilt in the
+default "C" locale of the local system, which may cause them to be different.
+.P
+The internal tables can always be overridden by tables supplied by the
+application that calls PCRE. These may be created in a different locale from
+the default. As more and more applications change to using Unicode, the need
+for this locale support is expected to die away.
+.P
+External tables are built by calling the \fBpcre_maketables()\fP function,
+which has no arguments, in the relevant locale. The result can then be passed
+to \fBpcre_compile()\fP or \fBpcre_exec()\fP as often as necessary. For
+example, to build and use tables that are appropriate for the French locale
+(where accented characters with values greater than 128 are treated as letters),
+the following code could be used:
+.sp
+  setlocale(LC_CTYPE, "fr_FR");
+  tables = pcre_maketables();
+  re = pcre_compile(..., tables);
+.sp
+The locale name "fr_FR" is used on Linux and other Unix-like systems; if you
+are using Windows, the name for the French locale is "french".
+.P
+When \fBpcre_maketables()\fP runs, the tables are built in memory that is
+obtained via \fBpcre_malloc\fP. It is the caller's responsibility to ensure
+that the memory containing the tables remains available for as long as it is
+needed.
+.P
+The pointer that is passed to \fBpcre_compile()\fP is saved with the compiled
+pattern, and the same tables are used via this pointer by \fBpcre_study()\fP
+and normally also by \fBpcre_exec()\fP. Thus, by default, for any single
+pattern, compilation, studying and matching all happen in the same locale, but
+different patterns can be compiled in different locales.
+.P
+It is possible to pass a table pointer or NULL (indicating the use of the
+internal tables) to \fBpcre_exec()\fP. Although not intended for this purpose,
+this facility could be used to match a pattern in a different locale from the
+one in which it was compiled. Passing table pointers at run time is discussed
+below in the section on matching a pattern.
+.
+.
+.\" HTML <a name="infoaboutpattern"></a>
+.SH "INFORMATION ABOUT A PATTERN"
+.rs
+.sp
+.B int pcre_fullinfo(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B int \fIwhat\fP, void *\fIwhere\fP);
+.PP
+The \fBpcre_fullinfo()\fP function returns information about a compiled
+pattern. It replaces the \fBpcre_info()\fP function, which was removed from the
+library at version 8.30, after more than 10 years of obsolescence.
+.P
+The first argument for \fBpcre_fullinfo()\fP is a pointer to the compiled
+pattern. The second argument is the result of \fBpcre_study()\fP, or NULL if
+the pattern was not studied. The third argument specifies which piece of
+information is required, and the fourth argument is a pointer to a variable
+to receive the data. The yield of the function is zero for success, or one of
+the following negative numbers:
+.sp
+  PCRE_ERROR_NULL           the argument \fIcode\fP was NULL
+                            the argument \fIwhere\fP was NULL
+  PCRE_ERROR_BADMAGIC       the "magic number" was not found
+  PCRE_ERROR_BADENDIANNESS  the pattern was compiled with different
+                            endianness
+  PCRE_ERROR_BADOPTION      the value of \fIwhat\fP was invalid
+.sp
+The "magic number" is placed at the start of each compiled pattern as an simple
+check against passing an arbitrary memory pointer. The endianness error can
+occur if a compiled pattern is saved and reloaded on a different host. Here is
+a typical call of \fBpcre_fullinfo()\fP, to obtain the length of the compiled
+pattern:
+.sp
+  int rc;
+  size_t length;
+  rc = pcre_fullinfo(
+    re,               /* result of pcre_compile() */
+    sd,               /* result of pcre_study(), or NULL */
+    PCRE_INFO_SIZE,   /* what is required */
+    &length);         /* where to put the data */
+.sp
+The possible values for the third argument are defined in \fBpcre.h\fP, and are
+as follows:
+.sp
+  PCRE_INFO_BACKREFMAX
+.sp
+Return the number of the highest back reference in the pattern. The fourth
+argument should point to an \fBint\fP variable. Zero is returned if there are
+no back references.
+.sp
+  PCRE_INFO_CAPTURECOUNT
+.sp
+Return the number of capturing subpatterns in the pattern. The fourth argument
+should point to an \fBint\fP variable.
+.sp
+  PCRE_INFO_DEFAULT_TABLES
+.sp
+Return a pointer to the internal default character tables within PCRE. The
+fourth argument should point to an \fBunsigned char *\fP variable. This
+information call is provided for internal use by the \fBpcre_study()\fP
+function. External callers can cause PCRE to use its internal tables by passing
+a NULL table pointer.
+.sp
+  PCRE_INFO_FIRSTBYTE
+.sp
+Return information about the first data unit of any matched string, for a
+non-anchored pattern. (The name of this option refers to the 8-bit library,
+where data units are bytes.) The fourth argument should point to an \fBint\fP
+variable.
+.P
+If there is a fixed first value, for example, the letter "c" from a pattern
+such as (cat|cow|coyote), its value is returned. In the 8-bit library, the
+value is always less than 256; in the 16-bit library the value can be up to
+0xffff.
+.P
+If there is no fixed first value, and if either
+.sp
+(a) the pattern was compiled with the PCRE_MULTILINE option, and every branch
+starts with "^", or
+.sp
+(b) every branch of the pattern starts with ".*" and PCRE_DOTALL is not set
+(if it were set, the pattern would be anchored),
+.sp
+-1 is returned, indicating that the pattern matches only at the start of a
+subject string or after any newline within the string. Otherwise -2 is
+returned. For anchored patterns, -2 is returned.
+.sp
+  PCRE_INFO_FIRSTTABLE
+.sp
+If the pattern was studied, and this resulted in the construction of a 256-bit
+table indicating a fixed set of values for the first data unit in any matching
+string, a pointer to the table is returned. Otherwise NULL is returned. The
+fourth argument should point to an \fBunsigned char *\fP variable.
+.sp
+  PCRE_INFO_HASCRORLF
+.sp
+Return 1 if the pattern contains any explicit matches for CR or LF characters,
+otherwise 0. The fourth argument should point to an \fBint\fP variable. An
+explicit match is either a literal CR or LF character, or \er or \en.
+.sp
+  PCRE_INFO_JCHANGED
+.sp
+Return 1 if the (?J) or (?-J) option setting is used in the pattern, otherwise
+0. The fourth argument should point to an \fBint\fP variable. (?J) and
+(?-J) set and unset the local PCRE_DUPNAMES option, respectively.
+.sp
+  PCRE_INFO_JIT
+.sp
+Return 1 if the pattern was studied with one of the JIT options, and
+just-in-time compiling was successful. The fourth argument should point to an
+\fBint\fP variable. A return value of 0 means that JIT support is not available
+in this version of PCRE, or that the pattern was not studied with a JIT option,
+or that the JIT compiler could not handle this particular pattern. See the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation for details of what can and cannot be handled.
+.sp
+  PCRE_INFO_JITSIZE
+.sp
+If the pattern was successfully studied with a JIT option, return the size of
+the JIT compiled code, otherwise return zero. The fourth argument should point
+to a \fBsize_t\fP variable.
+.sp
+  PCRE_INFO_LASTLITERAL
+.sp
+Return the value of the rightmost literal data unit that must exist in any
+matched string, other than at its start, if such a value has been recorded. The
+fourth argument should point to an \fBint\fP variable. If there is no such
+value, -1 is returned. For anchored patterns, a last literal value is recorded
+only if it follows something of variable length. For example, for the pattern
+/^a\ed+z\ed+/ the returned value is "z", but for /^a\edz\ed/ the returned value
+is -1.
+.sp
+  PCRE_INFO_MAXLOOKBEHIND
+.sp
+Return the number of characters (NB not bytes) in the longest lookbehind
+assertion in the pattern. Note that the simple assertions \eb and \eB require a
+one-character lookbehind. This information is useful when doing multi-segment
+matching using the partial matching facilities.
+.sp
+  PCRE_INFO_MINLENGTH
+.sp
+If the pattern was studied and a minimum length for matching subject strings
+was computed, its value is returned. Otherwise the returned value is -1. The
+value is a number of characters, which in UTF-8 mode may be different from the
+number of bytes. The fourth argument should point to an \fBint\fP variable. A
+non-negative value is a lower bound to the length of any matching string. There
+may not be any strings of that length that do actually match, but every string
+that does match is at least that long.
+.sp
+  PCRE_INFO_NAMECOUNT
+  PCRE_INFO_NAMEENTRYSIZE
+  PCRE_INFO_NAMETABLE
+.sp
+PCRE supports the use of named as well as numbered capturing parentheses. The
+names are just an additional way of identifying the parentheses, which still
+acquire numbers. Several convenience functions such as
+\fBpcre_get_named_substring()\fP are provided for extracting captured
+substrings by name. It is also possible to extract the data directly, by first
+converting the name to a number in order to access the correct pointers in the
+output vector (described with \fBpcre_exec()\fP below). To do the conversion,
+you need to use the name-to-number map, which is described by these three
+values.
+.P
+The map consists of a number of fixed-size entries. PCRE_INFO_NAMECOUNT gives
+the number of entries, and PCRE_INFO_NAMEENTRYSIZE gives the size of each
+entry; both of these return an \fBint\fP value. The entry size depends on the
+length of the longest name. PCRE_INFO_NAMETABLE returns a pointer to the first
+entry of the table. This is a pointer to \fBchar\fP in the 8-bit library, where
+the first two bytes of each entry are the number of the capturing parenthesis,
+most significant byte first. In the 16-bit library, the pointer points to
+16-bit data units, the first of which contains the parenthesis number. The rest
+of the entry is the corresponding name, zero terminated.
+.P
+The names are in alphabetical order. Duplicate names may appear if (?| is used
+to create multiple groups with the same number, as described in the
+.\" HTML <a href="pcrepattern.html#dupsubpatternnumber">
+.\" </a>
+section on duplicate subpattern numbers
+.\"
+in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+page. Duplicate names for subpatterns with different numbers are permitted only
+if PCRE_DUPNAMES is set. In all cases of duplicate names, they appear in the
+table in the order in which they were found in the pattern. In the absence of
+(?| this is the order of increasing number; when (?| is used this is not
+necessarily the case because later subpatterns may have lower numbers.
+.P
+As a simple example of the name/number table, consider the following pattern
+after compilation by the 8-bit library (assume PCRE_EXTENDED is set, so white
+space - including newlines - is ignored):
+.sp
+.\" JOIN
+  (?<date> (?<year>(\ed\ed)?\ed\ed) -
+  (?<month>\ed\ed) - (?<day>\ed\ed) )
+.sp
+There are four named subpatterns, so the table has four entries, and each entry
+in the table is eight bytes long. The table is as follows, with non-printing
+bytes shows in hexadecimal, and undefined bytes shown as ??:
+.sp
+  00 01 d  a  t  e  00 ??
+  00 05 d  a  y  00 ?? ??
+  00 04 m  o  n  t  h  00
+  00 02 y  e  a  r  00 ??
+.sp
+When writing code to extract data from named subpatterns using the
+name-to-number map, remember that the length of the entries is likely to be
+different for each compiled pattern.
+.sp
+  PCRE_INFO_OKPARTIAL
+.sp
+Return 1 if the pattern can be used for partial matching with
+\fBpcre_exec()\fP, otherwise 0. The fourth argument should point to an
+\fBint\fP variable. From release 8.00, this always returns 1, because the
+restrictions that previously applied to partial matching have been lifted. The
+.\" HREF
+\fBpcrepartial\fP
+.\"
+documentation gives details of partial matching.
+.sp
+  PCRE_INFO_OPTIONS
+.sp
+Return a copy of the options with which the pattern was compiled. The fourth
+argument should point to an \fBunsigned long int\fP variable. These option bits
+are those specified in the call to \fBpcre_compile()\fP, modified by any
+top-level option settings at the start of the pattern itself. In other words,
+they are the options that will be in force when matching starts. For example,
+if the pattern /(?im)abc(?-i)d/ is compiled with the PCRE_EXTENDED option, the
+result is PCRE_CASELESS, PCRE_MULTILINE, and PCRE_EXTENDED.
+.P
+A pattern is automatically anchored by PCRE if all of its top-level
+alternatives begin with one of the following:
+.sp
+  ^     unless PCRE_MULTILINE is set
+  \eA    always
+  \eG    always
+.\" JOIN
+  .*    if PCRE_DOTALL is set and there are no back
+          references to the subpattern in which .* appears
+.sp
+For such patterns, the PCRE_ANCHORED bit is set in the options returned by
+\fBpcre_fullinfo()\fP.
+.sp
+  PCRE_INFO_SIZE
+.sp
+Return the size of the compiled pattern in bytes (for both libraries). The
+fourth argument should point to a \fBsize_t\fP variable. This value does not
+include the size of the \fBpcre\fP structure that is returned by
+\fBpcre_compile()\fP. The value that is passed as the argument to
+\fBpcre_malloc()\fP when \fBpcre_compile()\fP is getting memory in which to
+place the compiled data is the value returned by this option plus the size of
+the \fBpcre\fP structure. Studying a compiled pattern, with or without JIT,
+does not alter the value returned by this option.
+.sp
+  PCRE_INFO_STUDYSIZE
+.sp
+Return the size in bytes of the data block pointed to by the \fIstudy_data\fP
+field in a \fBpcre_extra\fP block. If \fBpcre_extra\fP is NULL, or there is no
+study data, zero is returned. The fourth argument should point to a
+\fBsize_t\fP variable. The \fIstudy_data\fP field is set by \fBpcre_study()\fP
+to record information that will speed up matching (see the section entitled
+.\" HTML <a href="#studyingapattern">
+.\" </a>
+"Studying a pattern"
+.\"
+above). The format of the \fIstudy_data\fP block is private, but its length
+is made available via this option so that it can be saved and restored (see the
+.\" HREF
+\fBpcreprecompile\fP
+.\"
+documentation for details).
+.
+.
+.SH "REFERENCE COUNTS"
+.rs
+.sp
+.B int pcre_refcount(pcre *\fIcode\fP, int \fIadjust\fP);
+.PP
+The \fBpcre_refcount()\fP function is used to maintain a reference count in the
+data block that contains a compiled pattern. It is provided for the benefit of
+applications that operate in an object-oriented manner, where different parts
+of the application may be using the same compiled pattern, but you want to free
+the block when they are all done.
+.P
+When a pattern is compiled, the reference count field is initialized to zero.
+It is changed only by calling this function, whose action is to add the
+\fIadjust\fP value (which may be positive or negative) to it. The yield of the
+function is the new value. However, the value of the count is constrained to
+lie between 0 and 65535, inclusive. If the new value is outside these limits,
+it is forced to the appropriate limit value.
+.P
+Except when it is zero, the reference count is not correctly preserved if a
+pattern is compiled on one host and then transferred to a host whose byte-order
+is different. (This seems a highly unlikely scenario.)
+.
+.
+.SH "MATCHING A PATTERN: THE TRADITIONAL FUNCTION"
+.rs
+.sp
+.B int pcre_exec(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B "const char *\fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP);
+.P
+The function \fBpcre_exec()\fP is called to match a subject string against a
+compiled pattern, which is passed in the \fIcode\fP argument. If the
+pattern was studied, the result of the study should be passed in the
+\fIextra\fP argument. You can call \fBpcre_exec()\fP with the same \fIcode\fP
+and \fIextra\fP arguments as many times as you like, in order to match
+different subject strings with the same pattern.
+.P
+This function is the main matching facility of the library, and it operates in
+a Perl-like manner. For specialist use there is also an alternative matching
+function, which is described
+.\" HTML <a href="#dfamatch">
+.\" </a>
+below
+.\"
+in the section about the \fBpcre_dfa_exec()\fP function.
+.P
+In most applications, the pattern will have been compiled (and optionally
+studied) in the same process that calls \fBpcre_exec()\fP. However, it is
+possible to save compiled patterns and study data, and then use them later
+in different processes, possibly even on different hosts. For a discussion
+about this, see the
+.\" HREF
+\fBpcreprecompile\fP
+.\"
+documentation.
+.P
+Here is an example of a simple call to \fBpcre_exec()\fP:
+.sp
+  int rc;
+  int ovector[30];
+  rc = pcre_exec(
+    re,             /* result of pcre_compile() */
+    NULL,           /* we didn't study the pattern */
+    "some string",  /* the subject string */
+    11,             /* the length of the subject string */
+    0,              /* start at offset 0 in the subject */
+    0,              /* default options */
+    ovector,        /* vector of integers for substring information */
+    30);            /* number of elements (NOT size in bytes) */
+.
+.
+.\" HTML <a name="extradata"></a>
+.SS "Extra data for \fBpcre_exec()\fR"
+.rs
+.sp
+If the \fIextra\fP argument is not NULL, it must point to a \fBpcre_extra\fP
+data block. The \fBpcre_study()\fP function returns such a block (when it
+doesn't return NULL), but you can also create one for yourself, and pass
+additional information in it. The \fBpcre_extra\fP block contains the following
+fields (not necessarily in this order):
+.sp
+  unsigned long int \fIflags\fP;
+  void *\fIstudy_data\fP;
+  void *\fIexecutable_jit\fP;
+  unsigned long int \fImatch_limit\fP;
+  unsigned long int \fImatch_limit_recursion\fP;
+  void *\fIcallout_data\fP;
+  const unsigned char *\fItables\fP;
+  unsigned char **\fImark\fP;
+.sp
+In the 16-bit version of this structure, the \fImark\fP field has type
+"PCRE_UCHAR16 **".
+.P
+The \fIflags\fP field is used to specify which of the other fields are set. The
+flag bits are:
+.sp
+  PCRE_EXTRA_CALLOUT_DATA
+  PCRE_EXTRA_EXECUTABLE_JIT
+  PCRE_EXTRA_MARK
+  PCRE_EXTRA_MATCH_LIMIT
+  PCRE_EXTRA_MATCH_LIMIT_RECURSION
+  PCRE_EXTRA_STUDY_DATA
+  PCRE_EXTRA_TABLES
+.sp
+Other flag bits should be set to zero. The \fIstudy_data\fP field and sometimes
+the \fIexecutable_jit\fP field are set in the \fBpcre_extra\fP block that is
+returned by \fBpcre_study()\fP, together with the appropriate flag bits. You
+should not set these yourself, but you may add to the block by setting other
+fields and their corresponding flag bits.
+.P
+The \fImatch_limit\fP field provides a means of preventing PCRE from using up a
+vast amount of resources when running patterns that are not going to match,
+but which have a very large number of possibilities in their search trees. The
+classic example is a pattern that uses nested unlimited repeats.
+.P
+Internally, \fBpcre_exec()\fP uses a function called \fBmatch()\fP, which it
+calls repeatedly (sometimes recursively). The limit set by \fImatch_limit\fP is
+imposed on the number of times this function is called during a match, which
+has the effect of limiting the amount of backtracking that can take place. For
+patterns that are not anchored, the count restarts from zero for each position
+in the subject string.
+.P
+When \fBpcre_exec()\fP is called with a pattern that was successfully studied
+with a JIT option, the way that the matching is executed is entirely different.
+However, there is still the possibility of runaway matching that goes on for a
+very long time, and so the \fImatch_limit\fP value is also used in this case
+(but in a different way) to limit how long the matching can continue.
+.P
+The default value for the limit can be set when PCRE is built; the default
+default is 10 million, which handles all but the most extreme cases. You can
+override the default by suppling \fBpcre_exec()\fP with a \fBpcre_extra\fP
+block in which \fImatch_limit\fP is set, and PCRE_EXTRA_MATCH_LIMIT is set in
+the \fIflags\fP field. If the limit is exceeded, \fBpcre_exec()\fP returns
+PCRE_ERROR_MATCHLIMIT.
+.P
+The \fImatch_limit_recursion\fP field is similar to \fImatch_limit\fP, but
+instead of limiting the total number of times that \fBmatch()\fP is called, it
+limits the depth of recursion. The recursion depth is a smaller number than the
+total number of calls, because not all calls to \fBmatch()\fP are recursive.
+This limit is of use only if it is set smaller than \fImatch_limit\fP.
+.P
+Limiting the recursion depth limits the amount of machine stack that can be
+used, or, when PCRE has been compiled to use memory on the heap instead of the
+stack, the amount of heap memory that can be used. This limit is not relevant,
+and is ignored, when matching is done using JIT compiled code.
+.P
+The default value for \fImatch_limit_recursion\fP can be set when PCRE is
+built; the default default is the same value as the default for
+\fImatch_limit\fP. You can override the default by suppling \fBpcre_exec()\fP
+with a \fBpcre_extra\fP block in which \fImatch_limit_recursion\fP is set, and
+PCRE_EXTRA_MATCH_LIMIT_RECURSION is set in the \fIflags\fP field. If the limit
+is exceeded, \fBpcre_exec()\fP returns PCRE_ERROR_RECURSIONLIMIT.
+.P
+The \fIcallout_data\fP field is used in conjunction with the "callout" feature,
+and is described in the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation.
+.P
+The \fItables\fP field is used to pass a character tables pointer to
+\fBpcre_exec()\fP; this overrides the value that is stored with the compiled
+pattern. A non-NULL value is stored with the compiled pattern only if custom
+tables were supplied to \fBpcre_compile()\fP via its \fItableptr\fP argument.
+If NULL is passed to \fBpcre_exec()\fP using this mechanism, it forces PCRE's
+internal tables to be used. This facility is helpful when re-using patterns
+that have been saved after compiling with an external set of tables, because
+the external tables might be at a different address when \fBpcre_exec()\fP is
+called. See the
+.\" HREF
+\fBpcreprecompile\fP
+.\"
+documentation for a discussion of saving compiled patterns for later use.
+.P
+If PCRE_EXTRA_MARK is set in the \fIflags\fP field, the \fImark\fP field must
+be set to point to a suitable variable. If the pattern contains any
+backtracking control verbs such as (*MARK:NAME), and the execution ends up with
+a name to pass back, a pointer to the name string (zero terminated) is placed
+in the variable pointed to by the \fImark\fP field. The names are within the
+compiled pattern; if you wish to retain such a name you must copy it before
+freeing the memory of a compiled pattern. If there is no name to pass back, the
+variable pointed to by the \fImark\fP field is set to NULL. For details of the
+backtracking control verbs, see the section entitled
+.\" HTML <a href="pcrepattern#backtrackcontrol">
+.\" </a>
+"Backtracking control"
+.\"
+in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation.
+.
+.
+.\" HTML <a name="execoptions"></a>
+.SS "Option bits for \fBpcre_exec()\fP"
+.rs
+.sp
+The unused bits of the \fIoptions\fP argument for \fBpcre_exec()\fP must be
+zero. The only bits that may be set are PCRE_ANCHORED, PCRE_NEWLINE_\fIxxx\fP,
+PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART,
+PCRE_NO_START_OPTIMIZE, PCRE_NO_UTF8_CHECK, PCRE_PARTIAL_HARD, and
+PCRE_PARTIAL_SOFT.
+.P
+If the pattern was successfully studied with one of the just-in-time (JIT)
+compile options, the only supported options for JIT execution are
+PCRE_NO_UTF8_CHECK, PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY,
+PCRE_NOTEMPTY_ATSTART, PCRE_PARTIAL_HARD, and PCRE_PARTIAL_SOFT. If an
+unsupported option is used, JIT execution is disabled and the normal
+interpretive code in \fBpcre_exec()\fP is run.
+.sp
+  PCRE_ANCHORED
+.sp
+The PCRE_ANCHORED option limits \fBpcre_exec()\fP to matching at the first
+matching position. If a pattern was compiled with PCRE_ANCHORED, or turned out
+to be anchored by virtue of its contents, it cannot be made unachored at
+matching time.
+.sp
+  PCRE_BSR_ANYCRLF
+  PCRE_BSR_UNICODE
+.sp
+These options (which are mutually exclusive) control what the \eR escape
+sequence matches. The choice is either to match only CR, LF, or CRLF, or to
+match any Unicode newline sequence. These options override the choice that was
+made or defaulted when the pattern was compiled.
+.sp
+  PCRE_NEWLINE_CR
+  PCRE_NEWLINE_LF
+  PCRE_NEWLINE_CRLF
+  PCRE_NEWLINE_ANYCRLF
+  PCRE_NEWLINE_ANY
+.sp
+These options override the newline definition that was chosen or defaulted when
+the pattern was compiled. For details, see the description of
+\fBpcre_compile()\fP above. During matching, the newline choice affects the
+behaviour of the dot, circumflex, and dollar metacharacters. It may also alter
+the way the match position is advanced after a match failure for an unanchored
+pattern.
+.P
+When PCRE_NEWLINE_CRLF, PCRE_NEWLINE_ANYCRLF, or PCRE_NEWLINE_ANY is set, and a
+match attempt for an unanchored pattern fails when the current position is at a
+CRLF sequence, and the pattern contains no explicit matches for CR or LF
+characters, the match position is advanced by two characters instead of one, in
+other words, to after the CRLF.
+.P
+The above rule is a compromise that makes the most common cases work as
+expected. For example, if the pattern is .+A (and the PCRE_DOTALL option is not
+set), it does not match the string "\er\enA" because, after failing at the
+start, it skips both the CR and the LF before retrying. However, the pattern
+[\er\en]A does match that string, because it contains an explicit CR or LF
+reference, and so advances only by one character after the first failure.
+.P
+An explicit match for CR of LF is either a literal appearance of one of those
+characters, or one of the \er or \en escape sequences. Implicit matches such as
+[^X] do not count, nor does \es (which includes CR and LF in the characters
+that it matches).
+.P
+Notwithstanding the above, anomalous effects may still occur when CRLF is a
+valid newline sequence and explicit \er or \en escapes appear in the pattern.
+.sp
+  PCRE_NOTBOL
+.sp
+This option specifies that first character of the subject string is not the
+beginning of a line, so the circumflex metacharacter should not match before
+it. Setting this without PCRE_MULTILINE (at compile time) causes circumflex
+never to match. This option affects only the behaviour of the circumflex
+metacharacter. It does not affect \eA.
+.sp
+  PCRE_NOTEOL
+.sp
+This option specifies that the end of the subject string is not the end of a
+line, so the dollar metacharacter should not match it nor (except in multiline
+mode) a newline immediately before it. Setting this without PCRE_MULTILINE (at
+compile time) causes dollar never to match. This option affects only the
+behaviour of the dollar metacharacter. It does not affect \eZ or \ez.
+.sp
+  PCRE_NOTEMPTY
+.sp
+An empty string is not considered to be a valid match if this option is set. If
+there are alternatives in the pattern, they are tried. If all the alternatives
+match the empty string, the entire match fails. For example, if the pattern
+.sp
+  a?b?
+.sp
+is applied to a string not beginning with "a" or "b", it matches an empty
+string at the start of the subject. With PCRE_NOTEMPTY set, this match is not
+valid, so PCRE searches further into the string for occurrences of "a" or "b".
+.sp
+  PCRE_NOTEMPTY_ATSTART
+.sp
+This is like PCRE_NOTEMPTY, except that an empty string match that is not at
+the start of the subject is permitted. If the pattern is anchored, such a match
+can occur only if the pattern contains \eK.
+.P
+Perl has no direct equivalent of PCRE_NOTEMPTY or PCRE_NOTEMPTY_ATSTART, but it
+does make a special case of a pattern match of the empty string within its
+\fBsplit()\fP function, and when using the /g modifier. It is possible to
+emulate Perl's behaviour after matching a null string by first trying the match
+again at the same offset with PCRE_NOTEMPTY_ATSTART and PCRE_ANCHORED, and then
+if that fails, by advancing the starting offset (see below) and trying an
+ordinary match again. There is some code that demonstrates how to do this in
+the
+.\" HREF
+\fBpcredemo\fP
+.\"
+sample program. In the most general case, you have to check to see if the
+newline convention recognizes CRLF as a newline, and if so, and the current
+character is CR followed by LF, advance the starting offset by two characters
+instead of one.
+.sp
+  PCRE_NO_START_OPTIMIZE
+.sp
+There are a number of optimizations that \fBpcre_exec()\fP uses at the start of
+a match, in order to speed up the process. For example, if it is known that an
+unanchored match must start with a specific character, it searches the subject
+for that character, and fails immediately if it cannot find it, without
+actually running the main matching function. This means that a special item
+such as (*COMMIT) at the start of a pattern is not considered until after a
+suitable starting point for the match has been found. When callouts or (*MARK)
+items are in use, these "start-up" optimizations can cause them to be skipped
+if the pattern is never actually used. The start-up optimizations are in effect
+a pre-scan of the subject that takes place before the pattern is run.
+.P
+The PCRE_NO_START_OPTIMIZE option disables the start-up optimizations, possibly
+causing performance to suffer, but ensuring that in cases where the result is
+"no match", the callouts do occur, and that items such as (*COMMIT) and (*MARK)
+are considered at every possible starting position in the subject string. If
+PCRE_NO_START_OPTIMIZE is set at compile time, it cannot be unset at matching
+time. The use of PCRE_NO_START_OPTIMIZE disables JIT execution; when it is set,
+matching is always done using interpretively.
+.P
+Setting PCRE_NO_START_OPTIMIZE can change the outcome of a matching operation.
+Consider the pattern
+.sp
+  (*COMMIT)ABC
+.sp
+When this is compiled, PCRE records the fact that a match must start with the
+character "A". Suppose the subject string is "DEFABC". The start-up
+optimization scans along the subject, finds "A" and runs the first match
+attempt from there. The (*COMMIT) item means that the pattern must match the
+current starting position, which in this case, it does. However, if the same
+match is run with PCRE_NO_START_OPTIMIZE set, the initial scan along the
+subject string does not happen. The first match attempt is run starting from
+"D" and when this fails, (*COMMIT) prevents any further matches being tried, so
+the overall result is "no match". If the pattern is studied, more start-up
+optimizations may be used. For example, a minimum length for the subject may be
+recorded. Consider the pattern
+.sp
+  (*MARK:A)(X|Y)
+.sp
+The minimum length for a match is one character. If the subject is "ABC", there
+will be attempts to match "ABC", "BC", "C", and then finally an empty string.
+If the pattern is studied, the final attempt does not take place, because PCRE
+knows that the subject is too short, and so the (*MARK) is never encountered.
+In this case, studying the pattern does not affect the overall match result,
+which is still "no match", but it does affect the auxiliary information that is
+returned.
+.sp
+  PCRE_NO_UTF8_CHECK
+.sp
+When PCRE_UTF8 is set at compile time, the validity of the subject as a UTF-8
+string is automatically checked when \fBpcre_exec()\fP is subsequently called.
+The entire string is checked before any other processing takes place. The value
+of \fIstartoffset\fP is also checked to ensure that it points to the start of a
+UTF-8 character. There is a discussion about the
+.\" HTML <a href="pcreunicode.html#utf8strings">
+.\" </a>
+validity of UTF-8 strings
+.\"
+in the
+.\" HREF
+\fBpcreunicode\fP
+.\"
+page. If an invalid sequence of bytes is found, \fBpcre_exec()\fP returns the
+error PCRE_ERROR_BADUTF8 or, if PCRE_PARTIAL_HARD is set and the problem is a
+truncated character at the end of the subject, PCRE_ERROR_SHORTUTF8. In both
+cases, information about the precise nature of the error may also be returned
+(see the descriptions of these errors in the section entitled \fIError return
+values from\fP \fBpcre_exec()\fP
+.\" HTML <a href="#errorlist">
+.\" </a>
+below).
+.\"
+If \fIstartoffset\fP contains a value that does not point to the start of a
+UTF-8 character (or to the end of the subject), PCRE_ERROR_BADUTF8_OFFSET is
+returned.
+.P
+If you already know that your subject is valid, and you want to skip these
+checks for performance reasons, you can set the PCRE_NO_UTF8_CHECK option when
+calling \fBpcre_exec()\fP. You might want to do this for the second and
+subsequent calls to \fBpcre_exec()\fP if you are making repeated calls to find
+all the matches in a single subject string. However, you should be sure that
+the value of \fIstartoffset\fP points to the start of a character (or the end
+of the subject). When PCRE_NO_UTF8_CHECK is set, the effect of passing an
+invalid string as a subject or an invalid value of \fIstartoffset\fP is
+undefined. Your program may crash.
+.sp
+  PCRE_PARTIAL_HARD
+  PCRE_PARTIAL_SOFT
+.sp
+These options turn on the partial matching feature. For backwards
+compatibility, PCRE_PARTIAL is a synonym for PCRE_PARTIAL_SOFT. A partial match
+occurs if the end of the subject string is reached successfully, but there are
+not enough subject characters to complete the match. If this happens when
+PCRE_PARTIAL_SOFT (but not PCRE_PARTIAL_HARD) is set, matching continues by
+testing any remaining alternatives. Only if no complete match can be found is
+PCRE_ERROR_PARTIAL returned instead of PCRE_ERROR_NOMATCH. In other words,
+PCRE_PARTIAL_SOFT says that the caller is prepared to handle a partial match,
+but only if no complete match can be found.
+.P
+If PCRE_PARTIAL_HARD is set, it overrides PCRE_PARTIAL_SOFT. In this case, if a
+partial match is found, \fBpcre_exec()\fP immediately returns
+PCRE_ERROR_PARTIAL, without considering any other alternatives. In other words,
+when PCRE_PARTIAL_HARD is set, a partial match is considered to be more
+important that an alternative complete match.
+.P
+In both cases, the portion of the string that was inspected when the partial
+match was found is set as the first matching string. There is a more detailed
+discussion of partial and multi-segment matching, with examples, in the
+.\" HREF
+\fBpcrepartial\fP
+.\"
+documentation.
+.
+.
+.SS "The string to be matched by \fBpcre_exec()\fP"
+.rs
+.sp
+The subject string is passed to \fBpcre_exec()\fP as a pointer in
+\fIsubject\fP, a length in bytes in \fIlength\fP, and a starting byte offset
+in \fIstartoffset\fP. If this is negative or greater than the length of the
+subject, \fBpcre_exec()\fP returns PCRE_ERROR_BADOFFSET. When the starting
+offset is zero, the search for a match starts at the beginning of the subject,
+and this is by far the most common case. In UTF-8 mode, the byte offset must
+point to the start of a UTF-8 character (or the end of the subject). Unlike the
+pattern string, the subject may contain binary zero bytes.
+.P
+A non-zero starting offset is useful when searching for another match in the
+same subject by calling \fBpcre_exec()\fP again after a previous success.
+Setting \fIstartoffset\fP differs from just passing over a shortened string and
+setting PCRE_NOTBOL in the case of a pattern that begins with any kind of
+lookbehind. For example, consider the pattern
+.sp
+  \eBiss\eB
+.sp
+which finds occurrences of "iss" in the middle of words. (\eB matches only if
+the current position in the subject is not a word boundary.) When applied to
+the string "Mississipi" the first call to \fBpcre_exec()\fP finds the first
+occurrence. If \fBpcre_exec()\fP is called again with just the remainder of the
+subject, namely "issipi", it does not match, because \eB is always false at the
+start of the subject, which is deemed to be a word boundary. However, if
+\fBpcre_exec()\fP is passed the entire string again, but with \fIstartoffset\fP
+set to 4, it finds the second occurrence of "iss" because it is able to look
+behind the starting point to discover that it is preceded by a letter.
+.P
+Finding all the matches in a subject is tricky when the pattern can match an
+empty string. It is possible to emulate Perl's /g behaviour by first trying the
+match again at the same offset, with the PCRE_NOTEMPTY_ATSTART and
+PCRE_ANCHORED options, and then if that fails, advancing the starting offset
+and trying an ordinary match again. There is some code that demonstrates how to
+do this in the
+.\" HREF
+\fBpcredemo\fP
+.\"
+sample program. In the most general case, you have to check to see if the
+newline convention recognizes CRLF as a newline, and if so, and the current
+character is CR followed by LF, advance the starting offset by two characters
+instead of one.
+.P
+If a non-zero starting offset is passed when the pattern is anchored, one
+attempt to match at the given offset is made. This can only succeed if the
+pattern does not require the match to be at the start of the subject.
+.
+.
+.SS "How \fBpcre_exec()\fP returns captured substrings"
+.rs
+.sp
+In general, a pattern matches a certain portion of the subject, and in
+addition, further substrings from the subject may be picked out by parts of the
+pattern. Following the usage in Jeffrey Friedl's book, this is called
+"capturing" in what follows, and the phrase "capturing subpattern" is used for
+a fragment of a pattern that picks out a substring. PCRE supports several other
+kinds of parenthesized subpattern that do not cause substrings to be captured.
+.P
+Captured substrings are returned to the caller via a vector of integers whose
+address is passed in \fIovector\fP. The number of elements in the vector is
+passed in \fIovecsize\fP, which must be a non-negative number. \fBNote\fP: this
+argument is NOT the size of \fIovector\fP in bytes.
+.P
+The first two-thirds of the vector is used to pass back captured substrings,
+each substring using a pair of integers. The remaining third of the vector is
+used as workspace by \fBpcre_exec()\fP while matching capturing subpatterns,
+and is not available for passing back information. The number passed in
+\fIovecsize\fP should always be a multiple of three. If it is not, it is
+rounded down.
+.P
+When a match is successful, information about captured substrings is returned
+in pairs of integers, starting at the beginning of \fIovector\fP, and
+continuing up to two-thirds of its length at the most. The first element of
+each pair is set to the byte offset of the first character in a substring, and
+the second is set to the byte offset of the first character after the end of a
+substring. \fBNote\fP: these values are always byte offsets, even in UTF-8
+mode. They are not character counts.
+.P
+The first pair of integers, \fIovector[0]\fP and \fIovector[1]\fP, identify the
+portion of the subject string matched by the entire pattern. The next pair is
+used for the first capturing subpattern, and so on. The value returned by
+\fBpcre_exec()\fP is one more than the highest numbered pair that has been set.
+For example, if two substrings have been captured, the returned value is 3. If
+there are no capturing subpatterns, the return value from a successful match is
+1, indicating that just the first pair of offsets has been set.
+.P
+If a capturing subpattern is matched repeatedly, it is the last portion of the
+string that it matched that is returned.
+.P
+If the vector is too small to hold all the captured substring offsets, it is
+used as far as possible (up to two-thirds of its length), and the function
+returns a value of zero. If neither the actual string matched nor any captured
+substrings are of interest, \fBpcre_exec()\fP may be called with \fIovector\fP
+passed as NULL and \fIovecsize\fP as zero. However, if the pattern contains
+back references and the \fIovector\fP is not big enough to remember the related
+substrings, PCRE has to get additional memory for use during matching. Thus it
+is usually advisable to supply an \fIovector\fP of reasonable size.
+.P
+There are some cases where zero is returned (indicating vector overflow) when
+in fact the vector is exactly the right size for the final match. For example,
+consider the pattern
+.sp
+  (a)(?:(b)c|bd)
+.sp
+If a vector of 6 elements (allowing for only 1 captured substring) is given
+with subject string "abd", \fBpcre_exec()\fP will try to set the second
+captured string, thereby recording a vector overflow, before failing to match
+"c" and backing up to try the second alternative. The zero return, however,
+does correctly indicate that the maximum number of slots (namely 2) have been
+filled. In similar cases where there is temporary overflow, but the final
+number of used slots is actually less than the maximum, a non-zero value is
+returned.
+.P
+The \fBpcre_fullinfo()\fP function can be used to find out how many capturing
+subpatterns there are in a compiled pattern. The smallest size for
+\fIovector\fP that will allow for \fIn\fP captured substrings, in addition to
+the offsets of the substring matched by the whole pattern, is (\fIn\fP+1)*3.
+.P
+It is possible for capturing subpattern number \fIn+1\fP to match some part of
+the subject when subpattern \fIn\fP has not been used at all. For example, if
+the string "abc" is matched against the pattern (a|(z))(bc) the return from the
+function is 4, and subpatterns 1 and 3 are matched, but 2 is not. When this
+happens, both values in the offset pairs corresponding to unused subpatterns
+are set to -1.
+.P
+Offset values that correspond to unused subpatterns at the end of the
+expression are also set to -1. For example, if the string "abc" is matched
+against the pattern (abc)(x(yz)?)? subpatterns 2 and 3 are not matched. The
+return from the function is 2, because the highest used capturing subpattern
+number is 1, and the offsets for for the second and third capturing subpatterns
+(assuming the vector is large enough, of course) are set to -1.
+.P
+\fBNote\fP: Elements in the first two-thirds of \fIovector\fP that do not
+correspond to capturing parentheses in the pattern are never changed. That is,
+if a pattern contains \fIn\fP capturing parentheses, no more than
+\fIovector[0]\fP to \fIovector[2n+1]\fP are set by \fBpcre_exec()\fP. The other
+elements (in the first two-thirds) retain whatever values they previously had.
+.P
+Some convenience functions are provided for extracting the captured substrings
+as separate strings. These are described below.
+.
+.
+.\" HTML <a name="errorlist"></a>
+.SS "Error return values from \fBpcre_exec()\fP"
+.rs
+.sp
+If \fBpcre_exec()\fP fails, it returns a negative number. The following are
+defined in the header file:
+.sp
+  PCRE_ERROR_NOMATCH        (-1)
+.sp
+The subject string did not match the pattern.
+.sp
+  PCRE_ERROR_NULL           (-2)
+.sp
+Either \fIcode\fP or \fIsubject\fP was passed as NULL, or \fIovector\fP was
+NULL and \fIovecsize\fP was not zero.
+.sp
+  PCRE_ERROR_BADOPTION      (-3)
+.sp
+An unrecognized bit was set in the \fIoptions\fP argument.
+.sp
+  PCRE_ERROR_BADMAGIC       (-4)
+.sp
+PCRE stores a 4-byte "magic number" at the start of the compiled code, to catch
+the case when it is passed a junk pointer and to detect when a pattern that was
+compiled in an environment of one endianness is run in an environment with the
+other endianness. This is the error that PCRE gives when the magic number is
+not present.
+.sp
+  PCRE_ERROR_UNKNOWN_OPCODE (-5)
+.sp
+While running the pattern match, an unknown item was encountered in the
+compiled pattern. This error could be caused by a bug in PCRE or by overwriting
+of the compiled pattern.
+.sp
+  PCRE_ERROR_NOMEMORY       (-6)
+.sp
+If a pattern contains back references, but the \fIovector\fP that is passed to
+\fBpcre_exec()\fP is not big enough to remember the referenced substrings, PCRE
+gets a block of memory at the start of matching to use for this purpose. If the
+call via \fBpcre_malloc()\fP fails, this error is given. The memory is
+automatically freed at the end of matching.
+.P
+This error is also given if \fBpcre_stack_malloc()\fP fails in
+\fBpcre_exec()\fP. This can happen only when PCRE has been compiled with
+\fB--disable-stack-for-recursion\fP.
+.sp
+  PCRE_ERROR_NOSUBSTRING    (-7)
+.sp
+This error is used by the \fBpcre_copy_substring()\fP,
+\fBpcre_get_substring()\fP, and \fBpcre_get_substring_list()\fP functions (see
+below). It is never returned by \fBpcre_exec()\fP.
+.sp
+  PCRE_ERROR_MATCHLIMIT     (-8)
+.sp
+The backtracking limit, as specified by the \fImatch_limit\fP field in a
+\fBpcre_extra\fP structure (or defaulted) was reached. See the description
+above.
+.sp
+  PCRE_ERROR_CALLOUT        (-9)
+.sp
+This error is never generated by \fBpcre_exec()\fP itself. It is provided for
+use by callout functions that want to yield a distinctive error code. See the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation for details.
+.sp
+  PCRE_ERROR_BADUTF8        (-10)
+.sp
+A string that contains an invalid UTF-8 byte sequence was passed as a subject,
+and the PCRE_NO_UTF8_CHECK option was not set. If the size of the output vector
+(\fIovecsize\fP) is at least 2, the byte offset to the start of the the invalid
+UTF-8 character is placed in the first element, and a reason code is placed in
+the second element. The reason codes are listed in the
+.\" HTML <a href="#badutf8reasons">
+.\" </a>
+following section.
+.\"
+For backward compatibility, if PCRE_PARTIAL_HARD is set and the problem is a
+truncated UTF-8 character at the end of the subject (reason codes 1 to 5),
+PCRE_ERROR_SHORTUTF8 is returned instead of PCRE_ERROR_BADUTF8.
+.sp
+  PCRE_ERROR_BADUTF8_OFFSET (-11)
+.sp
+The UTF-8 byte sequence that was passed as a subject was checked and found to
+be valid (the PCRE_NO_UTF8_CHECK option was not set), but the value of
+\fIstartoffset\fP did not point to the beginning of a UTF-8 character or the
+end of the subject.
+.sp
+  PCRE_ERROR_PARTIAL        (-12)
+.sp
+The subject string did not match, but it did match partially. See the
+.\" HREF
+\fBpcrepartial\fP
+.\"
+documentation for details of partial matching.
+.sp
+  PCRE_ERROR_BADPARTIAL     (-13)
+.sp
+This code is no longer in use. It was formerly returned when the PCRE_PARTIAL
+option was used with a compiled pattern containing items that were not
+supported for partial matching. From release 8.00 onwards, there are no
+restrictions on partial matching.
+.sp
+  PCRE_ERROR_INTERNAL       (-14)
+.sp
+An unexpected internal error has occurred. This error could be caused by a bug
+in PCRE or by overwriting of the compiled pattern.
+.sp
+  PCRE_ERROR_BADCOUNT       (-15)
+.sp
+This error is given if the value of the \fIovecsize\fP argument is negative.
+.sp
+  PCRE_ERROR_RECURSIONLIMIT (-21)
+.sp
+The internal recursion limit, as specified by the \fImatch_limit_recursion\fP
+field in a \fBpcre_extra\fP structure (or defaulted) was reached. See the
+description above.
+.sp
+  PCRE_ERROR_BADNEWLINE     (-23)
+.sp
+An invalid combination of PCRE_NEWLINE_\fIxxx\fP options was given.
+.sp
+  PCRE_ERROR_BADOFFSET      (-24)
+.sp
+The value of \fIstartoffset\fP was negative or greater than the length of the
+subject, that is, the value in \fIlength\fP.
+.sp
+  PCRE_ERROR_SHORTUTF8      (-25)
+.sp
+This error is returned instead of PCRE_ERROR_BADUTF8 when the subject string
+ends with a truncated UTF-8 character and the PCRE_PARTIAL_HARD option is set.
+Information about the failure is returned as for PCRE_ERROR_BADUTF8. It is in
+fact sufficient to detect this case, but this special error code for
+PCRE_PARTIAL_HARD precedes the implementation of returned information; it is
+retained for backwards compatibility.
+.sp
+  PCRE_ERROR_RECURSELOOP    (-26)
+.sp
+This error is returned when \fBpcre_exec()\fP detects a recursion loop within
+the pattern. Specifically, it means that either the whole pattern or a
+subpattern has been called recursively for the second time at the same position
+in the subject string. Some simple patterns that might do this are detected and
+faulted at compile time, but more complicated cases, in particular mutual
+recursions between two different subpatterns, cannot be detected until run
+time.
+.sp
+  PCRE_ERROR_JIT_STACKLIMIT (-27)
+.sp
+This error is returned when a pattern that was successfully studied using a
+JIT compile option is being matched, but the memory available for the
+just-in-time processing stack is not large enough. See the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation for more details.
+.sp
+  PCRE_ERROR_BADMODE        (-28)
+.sp
+This error is given if a pattern that was compiled by the 8-bit library is
+passed to a 16-bit library function, or vice versa.
+.sp
+  PCRE_ERROR_BADENDIANNESS  (-29)
+.sp
+This error is given if a pattern that was compiled and saved is reloaded on a
+host with different endianness. The utility function
+\fBpcre_pattern_to_host_byte_order()\fP can be used to convert such a pattern
+so that it runs on the new host.
+.P
+Error numbers -16 to -20, -22, and -30 are not used by \fBpcre_exec()\fP.
+.
+.
+.\" HTML <a name="badutf8reasons"></a>
+.SS "Reason codes for invalid UTF-8 strings"
+.rs
+.sp
+This section applies only to the 8-bit library. The corresponding information
+for the 16-bit library is given in the
+.\" HREF
+\fBpcre16\fP
+.\"
+page.
+.P
+When \fBpcre_exec()\fP returns either PCRE_ERROR_BADUTF8 or
+PCRE_ERROR_SHORTUTF8, and the size of the output vector (\fIovecsize\fP) is at
+least 2, the offset of the start of the invalid UTF-8 character is placed in
+the first output vector element (\fIovector[0]\fP) and a reason code is placed
+in the second element (\fIovector[1]\fP). The reason codes are given names in
+the \fBpcre.h\fP header file:
+.sp
+  PCRE_UTF8_ERR1
+  PCRE_UTF8_ERR2
+  PCRE_UTF8_ERR3
+  PCRE_UTF8_ERR4
+  PCRE_UTF8_ERR5
+.sp
+The string ends with a truncated UTF-8 character; the code specifies how many
+bytes are missing (1 to 5). Although RFC 3629 restricts UTF-8 characters to be
+no longer than 4 bytes, the encoding scheme (originally defined by RFC 2279)
+allows for up to 6 bytes, and this is checked first; hence the possibility of
+4 or 5 missing bytes.
+.sp
+  PCRE_UTF8_ERR6
+  PCRE_UTF8_ERR7
+  PCRE_UTF8_ERR8
+  PCRE_UTF8_ERR9
+  PCRE_UTF8_ERR10
+.sp
+The two most significant bits of the 2nd, 3rd, 4th, 5th, or 6th byte of the
+character do not have the binary value 0b10 (that is, either the most
+significant bit is 0, or the next bit is 1).
+.sp
+  PCRE_UTF8_ERR11
+  PCRE_UTF8_ERR12
+.sp
+A character that is valid by the RFC 2279 rules is either 5 or 6 bytes long;
+these code points are excluded by RFC 3629.
+.sp
+  PCRE_UTF8_ERR13
+.sp
+A 4-byte character has a value greater than 0x10fff; these code points are
+excluded by RFC 3629.
+.sp
+  PCRE_UTF8_ERR14
+.sp
+A 3-byte character has a value in the range 0xd800 to 0xdfff; this range of
+code points are reserved by RFC 3629 for use with UTF-16, and so are excluded
+from UTF-8.
+.sp
+  PCRE_UTF8_ERR15
+  PCRE_UTF8_ERR16
+  PCRE_UTF8_ERR17
+  PCRE_UTF8_ERR18
+  PCRE_UTF8_ERR19
+.sp
+A 2-, 3-, 4-, 5-, or 6-byte character is "overlong", that is, it codes for a
+value that can be represented by fewer bytes, which is invalid. For example,
+the two bytes 0xc0, 0xae give the value 0x2e, whose correct coding uses just
+one byte.
+.sp
+  PCRE_UTF8_ERR20
+.sp
+The two most significant bits of the first byte of a character have the binary
+value 0b10 (that is, the most significant bit is 1 and the second is 0). Such a
+byte can only validly occur as the second or subsequent byte of a multi-byte
+character.
+.sp
+  PCRE_UTF8_ERR21
+.sp
+The first byte of a character has the value 0xfe or 0xff. These values can
+never occur in a valid UTF-8 string.
+.
+.
+.SH "EXTRACTING CAPTURED SUBSTRINGS BY NUMBER"
+.rs
+.sp
+.B int pcre_copy_substring(const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP, char *\fIbuffer\fP,
+.ti +5n
+.B int \fIbuffersize\fP);
+.PP
+.B int pcre_get_substring(const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, int \fIstringnumber\fP,
+.ti +5n
+.B const char **\fIstringptr\fP);
+.PP
+.B int pcre_get_substring_list(const char *\fIsubject\fP,
+.ti +5n
+.B int *\fIovector\fP, int \fIstringcount\fP, "const char ***\fIlistptr\fP);"
+.PP
+Captured substrings can be accessed directly by using the offsets returned by
+\fBpcre_exec()\fP in \fIovector\fP. For convenience, the functions
+\fBpcre_copy_substring()\fP, \fBpcre_get_substring()\fP, and
+\fBpcre_get_substring_list()\fP are provided for extracting captured substrings
+as new, separate, zero-terminated strings. These functions identify substrings
+by number. The next section describes functions for extracting named
+substrings.
+.P
+A substring that contains a binary zero is correctly extracted and has a
+further zero added on the end, but the result is not, of course, a C string.
+However, you can process such a string by referring to the length that is
+returned by \fBpcre_copy_substring()\fP and \fBpcre_get_substring()\fP.
+Unfortunately, the interface to \fBpcre_get_substring_list()\fP is not adequate
+for handling strings containing binary zeros, because the end of the final
+string is not independently indicated.
+.P
+The first three arguments are the same for all three of these functions:
+\fIsubject\fP is the subject string that has just been successfully matched,
+\fIovector\fP is a pointer to the vector of integer offsets that was passed to
+\fBpcre_exec()\fP, and \fIstringcount\fP is the number of substrings that were
+captured by the match, including the substring that matched the entire regular
+expression. This is the value returned by \fBpcre_exec()\fP if it is greater
+than zero. If \fBpcre_exec()\fP returned zero, indicating that it ran out of
+space in \fIovector\fP, the value passed as \fIstringcount\fP should be the
+number of elements in the vector divided by three.
+.P
+The functions \fBpcre_copy_substring()\fP and \fBpcre_get_substring()\fP
+extract a single substring, whose number is given as \fIstringnumber\fP. A
+value of zero extracts the substring that matched the entire pattern, whereas
+higher values extract the captured substrings. For \fBpcre_copy_substring()\fP,
+the string is placed in \fIbuffer\fP, whose length is given by
+\fIbuffersize\fP, while for \fBpcre_get_substring()\fP a new block of memory is
+obtained via \fBpcre_malloc\fP, and its address is returned via
+\fIstringptr\fP. The yield of the function is the length of the string, not
+including the terminating zero, or one of these error codes:
+.sp
+  PCRE_ERROR_NOMEMORY       (-6)
+.sp
+The buffer was too small for \fBpcre_copy_substring()\fP, or the attempt to get
+memory failed for \fBpcre_get_substring()\fP.
+.sp
+  PCRE_ERROR_NOSUBSTRING    (-7)
+.sp
+There is no substring whose number is \fIstringnumber\fP.
+.P
+The \fBpcre_get_substring_list()\fP function extracts all available substrings
+and builds a list of pointers to them. All this is done in a single block of
+memory that is obtained via \fBpcre_malloc\fP. The address of the memory block
+is returned via \fIlistptr\fP, which is also the start of the list of string
+pointers. The end of the list is marked by a NULL pointer. The yield of the
+function is zero if all went well, or the error code
+.sp
+  PCRE_ERROR_NOMEMORY       (-6)
+.sp
+if the attempt to get the memory block failed.
+.P
+When any of these functions encounter a substring that is unset, which can
+happen when capturing subpattern number \fIn+1\fP matches some part of the
+subject, but subpattern \fIn\fP has not been used at all, they return an empty
+string. This can be distinguished from a genuine zero-length substring by
+inspecting the appropriate offset in \fIovector\fP, which is negative for unset
+substrings.
+.P
+The two convenience functions \fBpcre_free_substring()\fP and
+\fBpcre_free_substring_list()\fP can be used to free the memory returned by
+a previous call of \fBpcre_get_substring()\fP or
+\fBpcre_get_substring_list()\fP, respectively. They do nothing more than call
+the function pointed to by \fBpcre_free\fP, which of course could be called
+directly from a C program. However, PCRE is used in some situations where it is
+linked via a special interface to another programming language that cannot use
+\fBpcre_free\fP directly; it is for these cases that the functions are
+provided.
+.
+.
+.SH "EXTRACTING CAPTURED SUBSTRINGS BY NAME"
+.rs
+.sp
+.B int pcre_get_stringnumber(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIname\fP);
+.PP
+.B int pcre_copy_named_substring(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, const char *\fIstringname\fP,
+.ti +5n
+.B char *\fIbuffer\fP, int \fIbuffersize\fP);
+.PP
+.B int pcre_get_named_substring(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIsubject\fP, int *\fIovector\fP,
+.ti +5n
+.B int \fIstringcount\fP, const char *\fIstringname\fP,
+.ti +5n
+.B const char **\fIstringptr\fP);
+.PP
+To extract a substring by name, you first have to find associated number.
+For example, for this pattern
+.sp
+  (a+)b(?<xxx>\ed+)...
+.sp
+the number of the subpattern called "xxx" is 2. If the name is known to be
+unique (PCRE_DUPNAMES was not set), you can find the number from the name by
+calling \fBpcre_get_stringnumber()\fP. The first argument is the compiled
+pattern, and the second is the name. The yield of the function is the
+subpattern number, or PCRE_ERROR_NOSUBSTRING (-7) if there is no subpattern of
+that name.
+.P
+Given the number, you can extract the substring directly, or use one of the
+functions described in the previous section. For convenience, there are also
+two functions that do the whole job.
+.P
+Most of the arguments of \fBpcre_copy_named_substring()\fP and
+\fBpcre_get_named_substring()\fP are the same as those for the similarly named
+functions that extract by number. As these are described in the previous
+section, they are not re-described here. There are just two differences:
+.P
+First, instead of a substring number, a substring name is given. Second, there
+is an extra argument, given at the start, which is a pointer to the compiled
+pattern. This is needed in order to gain access to the name-to-number
+translation table.
+.P
+These functions call \fBpcre_get_stringnumber()\fP, and if it succeeds, they
+then call \fBpcre_copy_substring()\fP or \fBpcre_get_substring()\fP, as
+appropriate. \fBNOTE:\fP If PCRE_DUPNAMES is set and there are duplicate names,
+the behaviour may not be what you want (see the next section).
+.P
+\fBWarning:\fP If the pattern uses the (?| feature to set up multiple
+subpatterns with the same number, as described in the
+.\" HTML <a href="pcrepattern.html#dupsubpatternnumber">
+.\" </a>
+section on duplicate subpattern numbers
+.\"
+in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+page, you cannot use names to distinguish the different subpatterns, because
+names are not included in the compiled code. The matching process uses only
+numbers. For this reason, the use of different names for subpatterns of the
+same number causes an error at compile time.
+.
+.
+.SH "DUPLICATE SUBPATTERN NAMES"
+.rs
+.sp
+.B int pcre_get_stringtable_entries(const pcre *\fIcode\fP,
+.ti +5n
+.B const char *\fIname\fP, char **\fIfirst\fP, char **\fIlast\fP);
+.PP
+When a pattern is compiled with the PCRE_DUPNAMES option, names for subpatterns
+are not required to be unique. (Duplicate names are always allowed for
+subpatterns with the same number, created by using the (?| feature. Indeed, if
+such subpatterns are named, they are required to use the same names.)
+.P
+Normally, patterns with duplicate names are such that in any one match, only
+one of the named subpatterns participates. An example is shown in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation.
+.P
+When duplicates are present, \fBpcre_copy_named_substring()\fP and
+\fBpcre_get_named_substring()\fP return the first substring corresponding to
+the given name that is set. If none are set, PCRE_ERROR_NOSUBSTRING (-7) is
+returned; no data is returned. The \fBpcre_get_stringnumber()\fP function
+returns one of the numbers that are associated with the name, but it is not
+defined which it is.
+.P
+If you want to get full details of all captured substrings for a given name,
+you must use the \fBpcre_get_stringtable_entries()\fP function. The first
+argument is the compiled pattern, and the second is the name. The third and
+fourth are pointers to variables which are updated by the function. After it
+has run, they point to the first and last entries in the name-to-number table
+for the given name. The function itself returns the length of each entry, or
+PCRE_ERROR_NOSUBSTRING (-7) if there are none. The format of the table is
+described above in the section entitled \fIInformation about a pattern\fP
+.\" HTML <a href="#infoaboutpattern">
+.\" </a>
+above.
+.\"
+Given all the relevant entries for the name, you can extract each of their
+numbers, and hence the captured data, if any.
+.
+.
+.SH "FINDING ALL POSSIBLE MATCHES"
+.rs
+.sp
+The traditional matching function uses a similar algorithm to Perl, which stops
+when it finds the first match, starting at a given point in the subject. If you
+want to find all possible matches, or the longest possible match, consider
+using the alternative matching function (see below) instead. If you cannot use
+the alternative function, but still need to find all possible matches, you
+can kludge it up by making use of the callout facility, which is described in
+the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation.
+.P
+What you have to do is to insert a callout right at the end of the pattern.
+When your callout function is called, extract and save the current matched
+substring. Then return 1, which forces \fBpcre_exec()\fP to backtrack and try
+other alternatives. Ultimately, when it runs out of matches, \fBpcre_exec()\fP
+will yield PCRE_ERROR_NOMATCH.
+.
+.
+.SH "OBTAINING AN ESTIMATE OF STACK USAGE"
+.rs
+.sp
+Matching certain patterns using \fBpcre_exec()\fP can use a lot of process
+stack, which in certain environments can be rather limited in size. Some users
+find it helpful to have an estimate of the amount of stack that is used by
+\fBpcre_exec()\fP, to help them set recursion limits, as described in the
+.\" HREF
+\fBpcrestack\fP
+.\"
+documentation. The estimate that is output by \fBpcretest\fP when called with
+the \fB-m\fP and \fB-C\fP options is obtained by calling \fBpcre_exec\fP with
+the values NULL, NULL, NULL, -999, and -999 for its first five arguments.
+.P
+Normally, if its first argument is NULL, \fBpcre_exec()\fP immediately returns
+the negative error code PCRE_ERROR_NULL, but with this special combination of
+arguments, it returns instead a negative number whose absolute value is the
+approximate stack frame size in bytes. (A negative number is used so that it is
+clear that no match has happened.) The value is approximate because in some
+cases, recursive calls to \fBpcre_exec()\fP occur when there are one or two
+additional variables on the stack.
+.P
+If PCRE has been compiled to use the heap instead of the stack for recursion,
+the value returned is the size of each block that is obtained from the heap.
+.
+.
+.\" HTML <a name="dfamatch"></a>
+.SH "MATCHING A PATTERN: THE ALTERNATIVE FUNCTION"
+.rs
+.sp
+.B int pcre_dfa_exec(const pcre *\fIcode\fP, "const pcre_extra *\fIextra\fP,"
+.ti +5n
+.B "const char *\fIsubject\fP," int \fIlength\fP, int \fIstartoffset\fP,
+.ti +5n
+.B int \fIoptions\fP, int *\fIovector\fP, int \fIovecsize\fP,
+.ti +5n
+.B int *\fIworkspace\fP, int \fIwscount\fP);
+.P
+The function \fBpcre_dfa_exec()\fP is called to match a subject string against
+a compiled pattern, using a matching algorithm that scans the subject string
+just once, and does not backtrack. This has different characteristics to the
+normal algorithm, and is not compatible with Perl. Some of the features of PCRE
+patterns are not supported. Nevertheless, there are times when this kind of
+matching can be useful. For a discussion of the two matching algorithms, and a
+list of features that \fBpcre_dfa_exec()\fP does not support, see the
+.\" HREF
+\fBpcrematching\fP
+.\"
+documentation.
+.P
+The arguments for the \fBpcre_dfa_exec()\fP function are the same as for
+\fBpcre_exec()\fP, plus two extras. The \fIovector\fP argument is used in a
+different way, and this is described below. The other common arguments are used
+in the same way as for \fBpcre_exec()\fP, so their description is not repeated
+here.
+.P
+The two additional arguments provide workspace for the function. The workspace
+vector should contain at least 20 elements. It is used for keeping track of
+multiple paths through the pattern tree. More workspace will be needed for
+patterns and subjects where there are a lot of potential matches.
+.P
+Here is an example of a simple call to \fBpcre_dfa_exec()\fP:
+.sp
+  int rc;
+  int ovector[10];
+  int wspace[20];
+  rc = pcre_dfa_exec(
+    re,             /* result of pcre_compile() */
+    NULL,           /* we didn't study the pattern */
+    "some string",  /* the subject string */
+    11,             /* the length of the subject string */
+    0,              /* start at offset 0 in the subject */
+    0,              /* default options */
+    ovector,        /* vector of integers for substring information */
+    10,             /* number of elements (NOT size in bytes) */
+    wspace,         /* working space vector */
+    20);            /* number of elements (NOT size in bytes) */
+.
+.SS "Option bits for \fBpcre_dfa_exec()\fP"
+.rs
+.sp
+The unused bits of the \fIoptions\fP argument for \fBpcre_dfa_exec()\fP must be
+zero. The only bits that may be set are PCRE_ANCHORED, PCRE_NEWLINE_\fIxxx\fP,
+PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART,
+PCRE_NO_UTF8_CHECK, PCRE_BSR_ANYCRLF, PCRE_BSR_UNICODE, PCRE_NO_START_OPTIMIZE,
+PCRE_PARTIAL_HARD, PCRE_PARTIAL_SOFT, PCRE_DFA_SHORTEST, and PCRE_DFA_RESTART.
+All but the last four of these are exactly the same as for \fBpcre_exec()\fP,
+so their description is not repeated here.
+.sp
+  PCRE_PARTIAL_HARD
+  PCRE_PARTIAL_SOFT
+.sp
+These have the same general effect as they do for \fBpcre_exec()\fP, but the
+details are slightly different. When PCRE_PARTIAL_HARD is set for
+\fBpcre_dfa_exec()\fP, it returns PCRE_ERROR_PARTIAL if the end of the subject
+is reached and there is still at least one matching possibility that requires
+additional characters. This happens even if some complete matches have also
+been found. When PCRE_PARTIAL_SOFT is set, the return code PCRE_ERROR_NOMATCH
+is converted into PCRE_ERROR_PARTIAL if the end of the subject is reached,
+there have been no complete matches, but there is still at least one matching
+possibility. The portion of the string that was inspected when the longest
+partial match was found is set as the first matching string in both cases.
+There is a more detailed discussion of partial and multi-segment matching, with
+examples, in the
+.\" HREF
+\fBpcrepartial\fP
+.\"
+documentation.
+.sp
+  PCRE_DFA_SHORTEST
+.sp
+Setting the PCRE_DFA_SHORTEST option causes the matching algorithm to stop as
+soon as it has found one match. Because of the way the alternative algorithm
+works, this is necessarily the shortest possible match at the first possible
+matching point in the subject string.
+.sp
+  PCRE_DFA_RESTART
+.sp
+When \fBpcre_dfa_exec()\fP returns a partial match, it is possible to call it
+again, with additional subject characters, and have it continue with the same
+match. The PCRE_DFA_RESTART option requests this action; when it is set, the
+\fIworkspace\fP and \fIwscount\fP options must reference the same vector as
+before because data about the match so far is left in them after a partial
+match. There is more discussion of this facility in the
+.\" HREF
+\fBpcrepartial\fP
+.\"
+documentation.
+.
+.
+.SS "Successful returns from \fBpcre_dfa_exec()\fP"
+.rs
+.sp
+When \fBpcre_dfa_exec()\fP succeeds, it may have matched more than one
+substring in the subject. Note, however, that all the matches from one run of
+the function start at the same point in the subject. The shorter matches are
+all initial substrings of the longer matches. For example, if the pattern
+.sp
+  <.*>
+.sp
+is matched against the string
+.sp
+  This is <something> <something else> <something further> no more
+.sp
+the three matched strings are
+.sp
+  <something>
+  <something> <something else>
+  <something> <something else> <something further>
+.sp
+On success, the yield of the function is a number greater than zero, which is
+the number of matched substrings. The substrings themselves are returned in
+\fIovector\fP. Each string uses two elements; the first is the offset to the
+start, and the second is the offset to the end. In fact, all the strings have
+the same start offset. (Space could have been saved by giving this only once,
+but it was decided to retain some compatibility with the way \fBpcre_exec()\fP
+returns data, even though the meaning of the strings is different.)
+.P
+The strings are returned in reverse order of length; that is, the longest
+matching string is given first. If there were too many matches to fit into
+\fIovector\fP, the yield of the function is zero, and the vector is filled with
+the longest matches. Unlike \fBpcre_exec()\fP, \fBpcre_dfa_exec()\fP can use
+the entire \fIovector\fP for returning matched strings.
+.
+.
+.SS "Error returns from \fBpcre_dfa_exec()\fP"
+.rs
+.sp
+The \fBpcre_dfa_exec()\fP function returns a negative number when it fails.
+Many of the errors are the same as for \fBpcre_exec()\fP, and these are
+described
+.\" HTML <a href="#errorlist">
+.\" </a>
+above.
+.\"
+There are in addition the following errors that are specific to
+\fBpcre_dfa_exec()\fP:
+.sp
+  PCRE_ERROR_DFA_UITEM      (-16)
+.sp
+This return is given if \fBpcre_dfa_exec()\fP encounters an item in the pattern
+that it does not support, for instance, the use of \eC or a back reference.
+.sp
+  PCRE_ERROR_DFA_UCOND      (-17)
+.sp
+This return is given if \fBpcre_dfa_exec()\fP encounters a condition item that
+uses a back reference for the condition, or a test for recursion in a specific
+group. These are not supported.
+.sp
+  PCRE_ERROR_DFA_UMLIMIT    (-18)
+.sp
+This return is given if \fBpcre_dfa_exec()\fP is called with an \fIextra\fP
+block that contains a setting of the \fImatch_limit\fP or
+\fImatch_limit_recursion\fP fields. This is not supported (these fields are
+meaningless for DFA matching).
+.sp
+  PCRE_ERROR_DFA_WSSIZE     (-19)
+.sp
+This return is given if \fBpcre_dfa_exec()\fP runs out of space in the
+\fIworkspace\fP vector.
+.sp
+  PCRE_ERROR_DFA_RECURSE    (-20)
+.sp
+When a recursive subpattern is processed, the matching function calls itself
+recursively, using private vectors for \fIovector\fP and \fIworkspace\fP. This
+error is given if the output vector is not large enough. This should be
+extremely rare, as a vector of size 1000 is used.
+.sp
+  PCRE_ERROR_DFA_BADRESTART (-30)
+.sp
+When \fBpcre_dfa_exec()\fP is called with the \fBPCRE_DFA_RESTART\fP option,
+some plausibility checks are made on the contents of the workspace, which
+should contain data about the previous partial match. If any of these checks
+fail, this error is given.
+.
+.
+.SH "SEE ALSO"
+.rs
+.sp
+\fBpcre16\fP(3), \fBpcrebuild\fP(3), \fBpcrecallout\fP(3), \fBpcrecpp(3)\fP(3),
+\fBpcrematching\fP(3), \fBpcrepartial\fP(3), \fBpcreposix\fP(3),
+\fBpcreprecompile\fP(3), \fBpcresample\fP(3), \fBpcrestack\fP(3).
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 17 June 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrebuild.3 b/8.31/doc/pcrebuild.3
new file mode 100644
index 0000000..52f97fb
--- /dev/null
+++ b/8.31/doc/pcrebuild.3
@@ -0,0 +1,425 @@
+.TH PCREBUILD 3 "07 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.
+.
+.SH "PCRE BUILD-TIME OPTIONS"
+.rs
+.sp
+This document describes the optional features of PCRE that can be selected when
+the library is compiled. It assumes use of the \fBconfigure\fP script, where
+the optional features are selected or deselected by providing options to
+\fBconfigure\fP before running the \fBmake\fP command. However, the same
+options can be selected in both Unix-like and non-Unix-like environments using
+the GUI facility of \fBcmake-gui\fP if you are using \fBCMake\fP instead of
+\fBconfigure\fP to build PCRE.
+.P
+There is a lot more information about building PCRE in non-Unix-like
+environments in the file called \fINON_UNIX_USE\fP, which is part of the PCRE
+distribution. You should consult this file as well as the \fIREADME\fP file if
+you are building in a non-Unix-like environment.
+.P
+The complete list of options for \fBconfigure\fP (which includes the standard
+ones such as the selection of the installation directory) can be obtained by
+running
+.sp
+  ./configure --help
+.sp
+The following sections include descriptions of options whose names begin with
+--enable or --disable. These settings specify changes to the defaults for the
+\fBconfigure\fP command. Because of the way that \fBconfigure\fP works,
+--enable and --disable always come in pairs, so the complementary option always
+exists as well, but as it specifies the default, it is not described.
+.
+.
+.SH "BUILDING 8-BIT and 16-BIT LIBRARIES"
+.rs
+.sp
+By default, a library called \fBlibpcre\fP is built, containing functions that
+take string arguments contained in vectors of bytes, either as single-byte
+characters, or interpreted as UTF-8 strings. You can also build a separate
+library, called \fBlibpcre16\fP, in which strings are contained in vectors of
+16-bit data units and interpreted either as single-unit characters or UTF-16
+strings, by adding
+.sp
+  --enable-pcre16
+.sp
+to the \fBconfigure\fP command. If you do not want the 8-bit library, add
+.sp
+  --disable-pcre8
+.sp
+as well. At least one of the two libraries must be built. Note that the C++ and
+POSIX wrappers are for the 8-bit library only, and that \fBpcregrep\fP is an
+8-bit program. None of these are built if you select only the 16-bit library.
+.
+.
+.SH "BUILDING SHARED AND STATIC LIBRARIES"
+.rs
+.sp
+The PCRE building process uses \fBlibtool\fP to build both shared and static
+Unix libraries by default. You can suppress one of these by adding one of
+.sp
+  --disable-shared
+  --disable-static
+.sp
+to the \fBconfigure\fP command, as required.
+.
+.
+.SH "C++ SUPPORT"
+.rs
+.sp
+By default, if the 8-bit library is being built, the \fBconfigure\fP script
+will search for a C++ compiler and C++ header files. If it finds them, it
+automatically builds the C++ wrapper library (which supports only 8-bit
+strings). You can disable this by adding
+.sp
+  --disable-cpp
+.sp
+to the \fBconfigure\fP command.
+.
+.
+.SH "UTF-8 and UTF-16 SUPPORT"
+.rs
+.sp
+To build PCRE with support for UTF Unicode character strings, add
+.sp
+  --enable-utf
+.sp
+to the \fBconfigure\fP command. This setting applies to both libraries, adding
+support for UTF-8 to the 8-bit library and support for UTF-16 to the 16-bit
+library. There are no separate options for enabling UTF-8 and UTF-16
+independently because that would allow ridiculous settings such as requesting
+UTF-16 support while building only the 8-bit library. It is not possible to
+build one library with UTF support and the other without in the same
+configuration. (For backwards compatibility, --enable-utf8 is a synonym of
+--enable-utf.)
+.P
+Of itself, this setting does not make PCRE treat strings as UTF-8 or UTF-16. As
+well as compiling PCRE with this option, you also have have to set the
+PCRE_UTF8 or PCRE_UTF16 option when you call one of the pattern compiling
+functions.
+.P
+If you set --enable-utf when compiling in an EBCDIC environment, PCRE expects
+its input to be either ASCII or UTF-8 (depending on the run-time option). It is
+not possible to support both EBCDIC and UTF-8 codes in the same version of the
+library. Consequently, --enable-utf and --enable-ebcdic are mutually
+exclusive.
+.
+.
+.SH "UNICODE CHARACTER PROPERTY SUPPORT"
+.rs
+.sp
+UTF support allows the libraries to process character codepoints up to 0x10ffff
+in the strings that they handle. On its own, however, it does not provide any
+facilities for accessing the properties of such characters. If you want to be
+able to use the pattern escapes \eP, \ep, and \eX, which refer to Unicode
+character properties, you must add
+.sp
+  --enable-unicode-properties
+.sp
+to the \fBconfigure\fP command. This implies UTF support, even if you have
+not explicitly requested it.
+.P
+Including Unicode property support adds around 30K of tables to the PCRE
+library. Only the general category properties such as \fILu\fP and \fINd\fP are
+supported. Details are given in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation.
+.
+.
+.SH "JUST-IN-TIME COMPILER SUPPORT"
+.rs
+.sp
+Just-in-time compiler support is included in the build by specifying
+.sp
+  --enable-jit
+.sp
+This support is available only for certain hardware architectures. If this
+option is set for an unsupported architecture, a compile time error occurs.
+See the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation for a discussion of JIT usage. When JIT support is enabled,
+pcregrep automatically makes use of it, unless you add
+.sp
+  --disable-pcregrep-jit
+.sp
+to the "configure" command.
+.
+.
+.SH "CODE VALUE OF NEWLINE"
+.rs
+.sp
+By default, PCRE interprets the linefeed (LF) character as indicating the end
+of a line. This is the normal newline character on Unix-like systems. You can
+compile PCRE to use carriage return (CR) instead, by adding
+.sp
+  --enable-newline-is-cr
+.sp
+to the \fBconfigure\fP command. There is also a --enable-newline-is-lf option,
+which explicitly specifies linefeed as the newline character.
+.sp
+Alternatively, you can specify that line endings are to be indicated by the two
+character sequence CRLF. If you want this, add
+.sp
+  --enable-newline-is-crlf
+.sp
+to the \fBconfigure\fP command. There is a fourth option, specified by
+.sp
+  --enable-newline-is-anycrlf
+.sp
+which causes PCRE to recognize any of the three sequences CR, LF, or CRLF as
+indicating a line ending. Finally, a fifth option, specified by
+.sp
+  --enable-newline-is-any
+.sp
+causes PCRE to recognize any Unicode newline sequence.
+.P
+Whatever line ending convention is selected when PCRE is built can be
+overridden when the library functions are called. At build time it is
+conventional to use the standard for your operating system.
+.
+.
+.SH "WHAT \eR MATCHES"
+.rs
+.sp
+By default, the sequence \eR in a pattern matches any Unicode newline sequence,
+whatever has been selected as the line ending sequence. If you specify
+.sp
+  --enable-bsr-anycrlf
+.sp
+the default is changed so that \eR matches only CR, LF, or CRLF. Whatever is
+selected when PCRE is built can be overridden when the library functions are
+called.
+.
+.
+.SH "POSIX MALLOC USAGE"
+.rs
+.sp
+When the 8-bit library is called through the POSIX interface (see the
+.\" HREF
+\fBpcreposix\fP
+.\"
+documentation), additional working storage is required for holding the pointers
+to capturing substrings, because PCRE requires three integers per substring,
+whereas the POSIX interface provides only two. If the number of expected
+substrings is small, the wrapper function uses space on the stack, because this
+is faster than using \fBmalloc()\fP for each call. The default threshold above
+which the stack is no longer used is 10; it can be changed by adding a setting
+such as
+.sp
+  --with-posix-malloc-threshold=20
+.sp
+to the \fBconfigure\fP command.
+.
+.
+.SH "HANDLING VERY LARGE PATTERNS"
+.rs
+.sp
+Within a compiled pattern, offset values are used to point from one part to
+another (for example, from an opening parenthesis to an alternation
+metacharacter). By default, two-byte values are used for these offsets, leading
+to a maximum size for a compiled pattern of around 64K. This is sufficient to
+handle all but the most gigantic patterns. Nevertheless, some people do want to
+process truly enormous patterns, so it is possible to compile PCRE to use
+three-byte or four-byte offsets by adding a setting such as
+.sp
+  --with-link-size=3
+.sp
+to the \fBconfigure\fP command. The value given must be 2, 3, or 4. For the
+16-bit library, a value of 3 is rounded up to 4. Using longer offsets slows
+down the operation of PCRE because it has to load additional data when handling
+them.
+.
+.
+.SH "AVOIDING EXCESSIVE STACK USAGE"
+.rs
+.sp
+When matching with the \fBpcre_exec()\fP function, PCRE implements backtracking
+by making recursive calls to an internal function called \fBmatch()\fP. In
+environments where the size of the stack is limited, this can severely limit
+PCRE's operation. (The Unix environment does not usually suffer from this
+problem, but it may sometimes be necessary to increase the maximum stack size.
+There is a discussion in the
+.\" HREF
+\fBpcrestack\fP
+.\"
+documentation.) An alternative approach to recursion that uses memory from the
+heap to remember data, instead of using recursive function calls, has been
+implemented to work round the problem of limited stack size. If you want to
+build a version of PCRE that works this way, add
+.sp
+  --disable-stack-for-recursion
+.sp
+to the \fBconfigure\fP command. With this configuration, PCRE will use the
+\fBpcre_stack_malloc\fP and \fBpcre_stack_free\fP variables to call memory
+management functions. By default these point to \fBmalloc()\fP and
+\fBfree()\fP, but you can replace the pointers so that your own functions are
+used instead.
+.P
+Separate functions are provided rather than using \fBpcre_malloc\fP and
+\fBpcre_free\fP because the usage is very predictable: the block sizes
+requested are always the same, and the blocks are always freed in reverse
+order. A calling program might be able to implement optimized functions that
+perform better than \fBmalloc()\fP and \fBfree()\fP. PCRE runs noticeably more
+slowly when built in this way. This option affects only the \fBpcre_exec()\fP
+function; it is not relevant for \fBpcre_dfa_exec()\fP.
+.
+.
+.SH "LIMITING PCRE RESOURCE USAGE"
+.rs
+.sp
+Internally, PCRE has a function called \fBmatch()\fP, which it calls repeatedly
+(sometimes recursively) when matching a pattern with the \fBpcre_exec()\fP
+function. By controlling the maximum number of times this function may be
+called during a single matching operation, a limit can be placed on the
+resources used by a single call to \fBpcre_exec()\fP. The limit can be changed
+at run time, as described in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation. The default is 10 million, but this can be changed by adding a
+setting such as
+.sp
+  --with-match-limit=500000
+.sp
+to the \fBconfigure\fP command. This setting has no effect on the
+\fBpcre_dfa_exec()\fP matching function.
+.P
+In some environments it is desirable to limit the depth of recursive calls of
+\fBmatch()\fP more strictly than the total number of calls, in order to
+restrict the maximum amount of stack (or heap, if --disable-stack-for-recursion
+is specified) that is used. A second limit controls this; it defaults to the
+value that is set for --with-match-limit, which imposes no additional
+constraints. However, you can set a lower limit by adding, for example,
+.sp
+  --with-match-limit-recursion=10000
+.sp
+to the \fBconfigure\fP command. This value can also be overridden at run time.
+.
+.
+.SH "CREATING CHARACTER TABLES AT BUILD TIME"
+.rs
+.sp
+PCRE uses fixed tables for processing characters whose code values are less
+than 256. By default, PCRE is built with a set of tables that are distributed
+in the file \fIpcre_chartables.c.dist\fP. These tables are for ASCII codes
+only. If you add
+.sp
+  --enable-rebuild-chartables
+.sp
+to the \fBconfigure\fP command, the distributed tables are no longer used.
+Instead, a program called \fBdftables\fP is compiled and run. This outputs the
+source for new set of tables, created in the default locale of your C run-time
+system. (This method of replacing the tables does not work if you are cross
+compiling, because \fBdftables\fP is run on the local host. If you need to
+create alternative tables when cross compiling, you will have to do so "by
+hand".)
+.
+.
+.SH "USING EBCDIC CODE"
+.rs
+.sp
+PCRE assumes by default that it will run in an environment where the character
+code is ASCII (or Unicode, which is a superset of ASCII). This is the case for
+most computer operating systems. PCRE can, however, be compiled to run in an
+EBCDIC environment by adding
+.sp
+  --enable-ebcdic
+.sp
+to the \fBconfigure\fP command. This setting implies
+--enable-rebuild-chartables. You should only use it if you know that you are in
+an EBCDIC environment (for example, an IBM mainframe operating system). The
+--enable-ebcdic option is incompatible with --enable-utf.
+.
+.
+.SH "PCREGREP OPTIONS FOR COMPRESSED FILE SUPPORT"
+.rs
+.sp
+By default, \fBpcregrep\fP reads all files as plain text. You can build it so
+that it recognizes files whose names end in \fB.gz\fP or \fB.bz2\fP, and reads
+them with \fBlibz\fP or \fBlibbz2\fP, respectively, by adding one or both of
+.sp
+  --enable-pcregrep-libz
+  --enable-pcregrep-libbz2
+.sp
+to the \fBconfigure\fP command. These options naturally require that the
+relevant libraries are installed on your system. Configuration will fail if
+they are not.
+.
+.
+.SH "PCREGREP BUFFER SIZE"
+.rs
+.sp
+\fBpcregrep\fP uses an internal buffer to hold a "window" on the file it is
+scanning, in order to be able to output "before" and "after" lines when it
+finds a match. The size of the buffer is controlled by a parameter whose
+default value is 20K. The buffer itself is three times this size, but because
+of the way it is used for holding "before" lines, the longest line that is
+guaranteed to be processable is the parameter size. You can change the default
+parameter value by adding, for example,
+.sp
+  --with-pcregrep-bufsize=50K
+.sp
+to the \fBconfigure\fP command. The caller of \fPpcregrep\fP can, however,
+override this value by specifying a run-time option.
+.
+.
+.SH "PCRETEST OPTION FOR LIBREADLINE SUPPORT"
+.rs
+.sp
+If you add
+.sp
+  --enable-pcretest-libreadline
+.sp
+to the \fBconfigure\fP command, \fBpcretest\fP is linked with the
+\fBlibreadline\fP library, and when its input is from a terminal, it reads it
+using the \fBreadline()\fP function. This provides line-editing and history
+facilities. Note that \fBlibreadline\fP is GPL-licensed, so if you distribute a
+binary of \fBpcretest\fP linked in this way, there may be licensing issues.
+.P
+Setting this option causes the \fB-lreadline\fP option to be added to the
+\fBpcretest\fP build. In many operating environments with a sytem-installed
+\fBlibreadline\fP this is sufficient. However, in some environments (e.g.
+if an unmodified distribution version of readline is in use), some extra
+configuration may be necessary. The INSTALL file for \fBlibreadline\fP says
+this:
+.sp
+  "Readline uses the termcap functions, but does not link with the
+  termcap or curses library itself, allowing applications which link
+  with readline the to choose an appropriate library."
+.sp
+If your environment has not been set up so that an appropriate library is
+automatically included, you may need to add something like
+.sp
+  LIBS="-ncurses"
+.sp
+immediately before the \fBconfigure\fP command.
+.
+.
+.SH "SEE ALSO"
+.rs
+.sp
+\fBpcreapi\fP(3), \fBpcre16\fP, \fBpcre_config\fP(3).
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 07 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrecallout.3 b/8.31/doc/pcrecallout.3
new file mode 100644
index 0000000..6d30111
--- /dev/null
+++ b/8.31/doc/pcrecallout.3
@@ -0,0 +1,203 @@
+.TH PCRECALLOUT 3 "08 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PCRE CALLOUTS"
+.rs
+.sp
+.B int (*pcre_callout)(pcre_callout_block *);
+.PP
+.B int (*pcre16_callout)(pcre16_callout_block *);
+.PP
+PCRE provides a feature called "callout", which is a means of temporarily
+passing control to the caller of PCRE in the middle of pattern matching. The
+caller of PCRE provides an external function by putting its entry point in the
+global variable \fIpcre_callout\fP (\fIpcre16_callout\fP for the 16-bit
+library). By default, this variable contains NULL, which disables all calling
+out.
+.P
+Within a regular expression, (?C) indicates the points at which the external
+function is to be called. Different callout points can be identified by putting
+a number less than 256 after the letter C. The default value is zero.
+For example, this pattern has two callout points:
+.sp
+  (?C1)abc(?C2)def
+.sp
+If the PCRE_AUTO_CALLOUT option bit is set when a pattern is compiled, PCRE
+automatically inserts callouts, all with number 255, before each item in the
+pattern. For example, if PCRE_AUTO_CALLOUT is used with the pattern
+.sp
+  A(\ed{2}|--)
+.sp
+it is processed as if it were
+.sp
+(?C255)A(?C255)((?C255)\ed{2}(?C255)|(?C255)-(?C255)-(?C255))(?C255)
+.sp
+Notice that there is a callout before and after each parenthesis and
+alternation bar. Automatic callouts can be used for tracking the progress of
+pattern matching. The
+.\" HREF
+\fBpcretest\fP
+.\"
+command has an option that sets automatic callouts; when it is used, the output
+indicates how the pattern is matched. This is useful information when you are
+trying to optimize the performance of a particular pattern.
+.P
+The use of callouts in a pattern makes it ineligible for optimization by the
+just-in-time compiler. Studying such a pattern with the PCRE_STUDY_JIT_COMPILE
+option always fails.
+.
+.
+.SH "MISSING CALLOUTS"
+.rs
+.sp
+You should be aware that, because of optimizations in the way PCRE matches
+patterns by default, callouts sometimes do not happen. For example, if the
+pattern is
+.sp
+  ab(?C4)cd
+.sp
+PCRE knows that any matching string must contain the letter "d". If the subject
+string is "abyz", the lack of "d" means that matching doesn't ever start, and
+the callout is never reached. However, with "abyd", though the result is still
+no match, the callout is obeyed.
+.P
+If the pattern is studied, PCRE knows the minimum length of a matching string,
+and will immediately give a "no match" return without actually running a match
+if the subject is not long enough, or, for unanchored patterns, if it has
+been scanned far enough.
+.P
+You can disable these optimizations by passing the PCRE_NO_START_OPTIMIZE
+option to the matching function, or by starting the pattern with
+(*NO_START_OPT). This slows down the matching process, but does ensure that
+callouts such as the example above are obeyed.
+.
+.
+.SH "THE CALLOUT INTERFACE"
+.rs
+.sp
+During matching, when PCRE reaches a callout point, the external function
+defined by \fIpcre_callout\fP or \fIpcre16_callout\fP is called (if it is set).
+This applies to both normal and DFA matching. The only argument to the callout
+function is a pointer to a \fBpcre_callout\fP or \fBpcre16_callout\fP block.
+These structures contains the following fields:
+.sp
+  int           \fIversion\fP;
+  int           \fIcallout_number\fP;
+  int          *\fIoffset_vector\fP;
+  const char   *\fIsubject\fP;           (8-bit version)
+  PCRE_SPTR16   \fIsubject\fP;           (16-bit version)
+  int           \fIsubject_length\fP;
+  int           \fIstart_match\fP;
+  int           \fIcurrent_position\fP;
+  int           \fIcapture_top\fP;
+  int           \fIcapture_last\fP;
+  void         *\fIcallout_data\fP;
+  int           \fIpattern_position\fP;
+  int           \fInext_item_length\fP;
+  const unsigned char *\fImark\fP;       (8-bit version)
+  const PCRE_UCHAR16  *\fImark\fP;       (16-bit version)
+.sp
+The \fIversion\fP field is an integer containing the version number of the
+block format. The initial version was 0; the current version is 2. The version
+number will change again in future if additional fields are added, but the
+intention is never to remove any of the existing fields.
+.P
+The \fIcallout_number\fP field contains the number of the callout, as compiled
+into the pattern (that is, the number after ?C for manual callouts, and 255 for
+automatically generated callouts).
+.P
+The \fIoffset_vector\fP field is a pointer to the vector of offsets that was
+passed by the caller to the matching function. When \fBpcre_exec()\fP or
+\fBpcre16_exec()\fP is used, the contents can be inspected, in order to extract
+substrings that have been matched so far, in the same way as for extracting
+substrings after a match has completed. For the DFA matching functions, this
+field is not useful.
+.P
+The \fIsubject\fP and \fIsubject_length\fP fields contain copies of the values
+that were passed to the matching function.
+.P
+The \fIstart_match\fP field normally contains the offset within the subject at
+which the current match attempt started. However, if the escape sequence \eK
+has been encountered, this value is changed to reflect the modified starting
+point. If the pattern is not anchored, the callout function may be called
+several times from the same point in the pattern for different starting points
+in the subject.
+.P
+The \fIcurrent_position\fP field contains the offset within the subject of the
+current match pointer.
+.P
+When the \fBpcre_exec()\fP or \fBpcre16_exec()\fP is used, the
+\fIcapture_top\fP field contains one more than the number of the highest
+numbered captured substring so far. If no substrings have been captured, the
+value of \fIcapture_top\fP is one. This is always the case when the DFA
+functions are used, because they do not support captured substrings.
+.P
+The \fIcapture_last\fP field contains the number of the most recently captured
+substring. If no substrings have been captured, its value is -1. This is always
+the case for the DFA matching functions.
+.P
+The \fIcallout_data\fP field contains a value that is passed to a matching
+function specifically so that it can be passed back in callouts. It is passed
+in the \fIcallout_data\fP field of a \fBpcre_extra\fP or \fBpcre16_extra\fP
+data structure. If no such data was passed, the value of \fIcallout_data\fP in
+a callout block is NULL. There is a description of the \fBpcre_extra\fP
+structure in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation.
+.P
+The \fIpattern_position\fP field is present from version 1 of the callout
+structure. It contains the offset to the next item to be matched in the pattern
+string.
+.P
+The \fInext_item_length\fP field is present from version 1 of the callout
+structure. It contains the length of the next item to be matched in the pattern
+string. When the callout immediately precedes an alternation bar, a closing
+parenthesis, or the end of the pattern, the length is zero. When the callout
+precedes an opening parenthesis, the length is that of the entire subpattern.
+.P
+The \fIpattern_position\fP and \fInext_item_length\fP fields are intended to
+help in distinguishing between different automatic callouts, which all have the
+same callout number. However, they are set for all callouts.
+.P
+The \fImark\fP field is present from version 2 of the callout structure. In
+callouts from \fBpcre_exec()\fP or \fBpcre16_exec()\fP it contains a pointer to
+the zero-terminated name of the most recently passed (*MARK), (*PRUNE), or
+(*THEN) item in the match, or NULL if no such items have been passed. Instances
+of (*PRUNE) or (*THEN) without a name do not obliterate a previous (*MARK). In
+callouts from the DFA matching functions this field always contains NULL.
+.
+.
+.SH "RETURN VALUES"
+.rs
+.sp
+The external callout function returns an integer to PCRE. If the value is zero,
+matching proceeds as normal. If the value is greater than zero, matching fails
+at the current point, but the testing of other matching possibilities goes
+ahead, just as if a lookahead assertion had failed. If the value is less than
+zero, the match is abandoned, the matching function returns the negative value.
+.P
+Negative values should normally be chosen from the set of PCRE_ERROR_xxx
+values. In particular, PCRE_ERROR_NOMATCH forces a standard "no match" failure.
+The error number PCRE_ERROR_CALLOUT is reserved for use by callout functions;
+it will never be used by PCRE itself.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 08 Janurary 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrecompat.3 b/8.31/doc/pcrecompat.3
new file mode 100644
index 0000000..45856e4
--- /dev/null
+++ b/8.31/doc/pcrecompat.3
@@ -0,0 +1,188 @@
+.TH PCRECOMPAT 3 "08 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "DIFFERENCES BETWEEN PCRE AND PERL"
+.rs
+.sp
+This document describes the differences in the ways that PCRE and Perl handle
+regular expressions. The differences described here are with respect to Perl
+versions 5.10 and above.
+.P
+1. PCRE has only a subset of Perl's Unicode support. Details of what it does
+have are given in the
+.\" HREF
+\fBpcreunicode\fP
+.\"
+page.
+.P
+2. PCRE allows repeat quantifiers only on parenthesized assertions, but they do
+not mean what you might think. For example, (?!a){3} does not assert that the
+next three characters are not "a". It just asserts that the next character is
+not "a" three times (in principle: PCRE optimizes this to run the assertion
+just once). Perl allows repeat quantifiers on other assertions such as \eb, but
+these do not seem to have any use.
+.P
+3. Capturing subpatterns that occur inside negative lookahead assertions are
+counted, but their entries in the offsets vector are never set. Perl sets its
+numerical variables from any such patterns that are matched before the
+assertion fails to match something (thereby succeeding), but only if the
+negative lookahead assertion contains just one branch.
+.P
+4. Though binary zero characters are supported in the subject string, they are
+not allowed in a pattern string because it is passed as a normal C string,
+terminated by zero. The escape sequence \e0 can be used in the pattern to
+represent a binary zero.
+.P
+5. The following Perl escape sequences are not supported: \el, \eu, \eL,
+\eU, and \eN when followed by a character name or Unicode value. (\eN on its
+own, matching a non-newline character, is supported.) In fact these are
+implemented by Perl's general string-handling and are not part of its pattern
+matching engine. If any of these are encountered by PCRE, an error is
+generated by default. However, if the PCRE_JAVASCRIPT_COMPAT option is set,
+\eU and \eu are interpreted as JavaScript interprets them.
+.P
+6. The Perl escape sequences \ep, \eP, and \eX are supported only if PCRE is
+built with Unicode character property support. The properties that can be
+tested with \ep and \eP are limited to the general category properties such as
+Lu and Nd, script names such as Greek or Han, and the derived properties Any
+and L&. PCRE does support the Cs (surrogate) property, which Perl does not; the
+Perl documentation says "Because Perl hides the need for the user to understand
+the internal representation of Unicode characters, there is no need to
+implement the somewhat messy concept of surrogates."
+.P
+7. PCRE implements a simpler version of \eX than Perl, which changed to make
+\eX match what Unicode calls an "extended grapheme cluster". This is more
+complicated than an extended Unicode sequence, which is what PCRE matches.
+.P
+8. PCRE does support the \eQ...\eE escape for quoting substrings. Characters in
+between are treated as literals. This is slightly different from Perl in that $
+and @ are also handled as literals inside the quotes. In Perl, they cause
+variable interpolation (but of course PCRE does not have variables). Note the
+following examples:
+.sp
+    Pattern            PCRE matches      Perl matches
+.sp
+.\" JOIN
+    \eQabc$xyz\eE        abc$xyz           abc followed by the
+                                           contents of $xyz
+    \eQabc\e$xyz\eE       abc\e$xyz          abc\e$xyz
+    \eQabc\eE\e$\eQxyz\eE   abc$xyz           abc$xyz
+.sp
+The \eQ...\eE sequence is recognized both inside and outside character classes.
+.P
+9. Fairly obviously, PCRE does not support the (?{code}) and (??{code})
+constructions. However, there is support for recursive patterns. This is not
+available in Perl 5.8, but it is in Perl 5.10. Also, the PCRE "callout"
+feature allows an external function to be called during pattern matching. See
+the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation for details.
+.P
+10. Subpatterns that are called as subroutines (whether or not recursively) are
+always treated as atomic groups in PCRE. This is like Python, but unlike Perl.
+Captured values that are set outside a subroutine call can be reference from
+inside in PCRE, but not in Perl. There is a discussion that explains these
+differences in more detail in the
+.\" HTML <a href="pcrepattern.html#recursiondifference">
+.\" </a>
+section on recursion differences from Perl
+.\"
+in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+page.
+.P
+11. If any of the backtracking control verbs are used in an assertion or in a
+subpattern that is called as a subroutine (whether or not recursively), their
+effect is confined to that subpattern; it does not extend to the surrounding
+pattern. This is not always the case in Perl. In particular, if (*THEN) is
+present in a group that is called as a subroutine, its action is limited to
+that group, even if the group does not contain any | characters. There is one
+exception to this: the name from a *(MARK), (*PRUNE), or (*THEN) that is
+encountered in a successful positive assertion \fIis\fP passed back when a
+match succeeds (compare capturing parentheses in assertions). Note that such
+subpatterns are processed as anchored at the point where they are tested.
+.P
+12. There are some differences that are concerned with the settings of captured
+strings when part of a pattern is repeated. For example, matching "aba" against
+the pattern /^(a(b)?)+$/ in Perl leaves $2 unset, but in PCRE it is set to "b".
+.P
+13. PCRE's handling of duplicate subpattern numbers and duplicate subpattern
+names is not as general as Perl's. This is a consequence of the fact the PCRE
+works internally just with numbers, using an external table to translate
+between numbers and names. In particular, a pattern such as (?|(?<a>A)|(?<b)B),
+where the two capturing parentheses have the same number but different names,
+is not supported, and causes an error at compile time. If it were allowed, it
+would not be possible to distinguish which parentheses matched, because both
+names map to capturing subpattern number 1. To avoid this confusing situation,
+an error is given at compile time.
+.P
+14. Perl recognizes comments in some places that PCRE does not, for example,
+between the ( and ? at the start of a subpattern. If the /x modifier is set,
+Perl allows white space between ( and ? but PCRE never does, even if the
+PCRE_EXTENDED option is set.
+.P
+15. PCRE provides some extensions to the Perl regular expression facilities.
+Perl 5.10 includes new features that are not in earlier versions of Perl, some
+of which (such as named parentheses) have been in PCRE for some time. This list
+is with respect to Perl 5.10:
+.sp
+(a) Although lookbehind assertions in PCRE must match fixed length strings,
+each alternative branch of a lookbehind assertion can match a different length
+of string. Perl requires them all to have the same length.
+.sp
+(b) If PCRE_DOLLAR_ENDONLY is set and PCRE_MULTILINE is not set, the $
+meta-character matches only at the very end of the string.
+.sp
+(c) If PCRE_EXTRA is set, a backslash followed by a letter with no special
+meaning is faulted. Otherwise, like Perl, the backslash is quietly ignored.
+(Perl can be made to issue a warning.)
+.sp
+(d) If PCRE_UNGREEDY is set, the greediness of the repetition quantifiers is
+inverted, that is, by default they are not greedy, but if followed by a
+question mark they are.
+.sp
+(e) PCRE_ANCHORED can be used at matching time to force a pattern to be tried
+only at the first matching position in the subject string.
+.sp
+(f) The PCRE_NOTBOL, PCRE_NOTEOL, PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART, and
+PCRE_NO_AUTO_CAPTURE options for \fBpcre_exec()\fP have no Perl equivalents.
+.sp
+(g) The \eR escape sequence can be restricted to match only CR, LF, or CRLF
+by the PCRE_BSR_ANYCRLF option.
+.sp
+(h) The callout facility is PCRE-specific.
+.sp
+(i) The partial matching facility is PCRE-specific.
+.sp
+(j) Patterns compiled by PCRE can be saved and re-used at a later time, even on
+different hosts that have the other endianness. However, this does not apply to
+optimized data created by the just-in-time compiler.
+.sp
+(k) The alternative matching functions (\fBpcre_dfa_exec()\fP and
+\fBpcre16_dfa_exec()\fP) match in a different way and are not Perl-compatible.
+.sp
+(l) PCRE recognizes some special sequences such as (*CR) at the start of
+a pattern that set overall options that cannot be changed within the pattern.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 01 June 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrecpp.3 b/8.31/doc/pcrecpp.3
new file mode 100644
index 0000000..fb1c00a
--- /dev/null
+++ b/8.31/doc/pcrecpp.3
@@ -0,0 +1,348 @@
+.TH PCRECPP 3 "08 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions.
+.SH "SYNOPSIS OF C++ WRAPPER"
+.rs
+.sp
+.B #include <pcrecpp.h>
+.
+.SH DESCRIPTION
+.rs
+.sp
+The C++ wrapper for PCRE was provided by Google Inc. Some additional
+functionality was added by Giuseppe Maxia. This brief man page was constructed
+from the notes in the \fIpcrecpp.h\fP file, which should be consulted for
+further details. Note that the C++ wrapper supports only the original 8-bit
+PCRE library. There is no 16-bit support at present.
+.
+.
+.SH "MATCHING INTERFACE"
+.rs
+.sp
+The "FullMatch" operation checks that supplied text matches a supplied pattern
+exactly. If pointer arguments are supplied, it copies matched sub-strings that
+match sub-patterns into them.
+.sp
+  Example: successful match
+     pcrecpp::RE re("h.*o");
+     re.FullMatch("hello");
+.sp
+  Example: unsuccessful match (requires full match):
+     pcrecpp::RE re("e");
+     !re.FullMatch("hello");
+.sp
+  Example: creating a temporary RE object:
+     pcrecpp::RE("h.*o").FullMatch("hello");
+.sp
+You can pass in a "const char*" or a "string" for "text". The examples below
+tend to use a const char*. You can, as in the different examples above, store
+the RE object explicitly in a variable or use a temporary RE object. The
+examples below use one mode or the other arbitrarily. Either could correctly be
+used for any of these examples.
+.P
+You must supply extra pointer arguments to extract matched subpieces.
+.sp
+  Example: extracts "ruby" into "s" and 1234 into "i"
+     int i;
+     string s;
+     pcrecpp::RE re("(\e\ew+):(\e\ed+)");
+     re.FullMatch("ruby:1234", &s, &i);
+.sp
+  Example: does not try to extract any extra sub-patterns
+     re.FullMatch("ruby:1234", &s);
+.sp
+  Example: does not try to extract into NULL
+     re.FullMatch("ruby:1234", NULL, &i);
+.sp
+  Example: integer overflow causes failure
+     !re.FullMatch("ruby:1234567891234", NULL, &i);
+.sp
+  Example: fails because there aren't enough sub-patterns:
+     !pcrecpp::RE("\e\ew+:\e\ed+").FullMatch("ruby:1234", &s);
+.sp
+  Example: fails because string cannot be stored in integer
+     !pcrecpp::RE("(.*)").FullMatch("ruby", &i);
+.sp
+The provided pointer arguments can be pointers to any scalar numeric
+type, or one of:
+.sp
+   string        (matched piece is copied to string)
+   StringPiece   (StringPiece is mutated to point to matched piece)
+   T             (where "bool T::ParseFrom(const char*, int)" exists)
+   NULL          (the corresponding matched sub-pattern is not copied)
+.sp
+The function returns true iff all of the following conditions are satisfied:
+.sp
+  a. "text" matches "pattern" exactly;
+.sp
+  b. The number of matched sub-patterns is >= number of supplied
+     pointers;
+.sp
+  c. The "i"th argument has a suitable type for holding the
+     string captured as the "i"th sub-pattern. If you pass in
+     void * NULL for the "i"th argument, or a non-void * NULL
+     of the correct type, or pass fewer arguments than the
+     number of sub-patterns, "i"th captured sub-pattern is
+     ignored.
+.sp
+CAVEAT: An optional sub-pattern that does not exist in the matched
+string is assigned the empty string. Therefore, the following will
+return false (because the empty string is not a valid number):
+.sp
+   int number;
+   pcrecpp::RE::FullMatch("abc", "[a-z]+(\e\ed+)?", &number);
+.sp
+The matching interface supports at most 16 arguments per call.
+If you need more, consider using the more general interface
+\fBpcrecpp::RE::DoMatch\fP. See \fBpcrecpp.h\fP for the signature for
+\fBDoMatch\fP.
+.P
+NOTE: Do not use \fBno_arg\fP, which is used internally to mark the end of a
+list of optional arguments, as a placeholder for missing arguments, as this can
+lead to segfaults.
+.
+.
+.SH "QUOTING METACHARACTERS"
+.rs
+.sp
+You can use the "QuoteMeta" operation to insert backslashes before all
+potentially meaningful characters in a string. The returned string, used as a
+regular expression, will exactly match the original string.
+.sp
+  Example:
+     string quoted = RE::QuoteMeta(unquoted);
+.sp
+Note that it's legal to escape a character even if it has no special meaning in
+a regular expression -- so this function does that. (This also makes it
+identical to the perl function of the same name; see "perldoc -f quotemeta".)
+For example, "1.5-2.0?" becomes "1\e.5\e-2\e.0\e?".
+.
+.SH "PARTIAL MATCHES"
+.rs
+.sp
+You can use the "PartialMatch" operation when you want the pattern
+to match any substring of the text.
+.sp
+  Example: simple search for a string:
+     pcrecpp::RE("ell").PartialMatch("hello");
+.sp
+  Example: find first number in a string:
+     int number;
+     pcrecpp::RE re("(\e\ed+)");
+     re.PartialMatch("x*100 + 20", &number);
+     assert(number == 100);
+.
+.
+.SH "UTF-8 AND THE MATCHING INTERFACE"
+.rs
+.sp
+By default, pattern and text are plain text, one byte per character. The UTF8
+flag, passed to the constructor, causes both pattern and string to be treated
+as UTF-8 text, still a byte stream but potentially multiple bytes per
+character. In practice, the text is likelier to be UTF-8 than the pattern, but
+the match returned may depend on the UTF8 flag, so always use it when matching
+UTF8 text. For example, "." will match one byte normally but with UTF8 set may
+match up to three bytes of a multi-byte character.
+.sp
+  Example:
+     pcrecpp::RE_Options options;
+     options.set_utf8();
+     pcrecpp::RE re(utf8_pattern, options);
+     re.FullMatch(utf8_string);
+.sp
+  Example: using the convenience function UTF8():
+     pcrecpp::RE re(utf8_pattern, pcrecpp::UTF8());
+     re.FullMatch(utf8_string);
+.sp
+NOTE: The UTF8 flag is ignored if pcre was not configured with the
+      --enable-utf8 flag.
+.
+.
+.SH "PASSING MODIFIERS TO THE REGULAR EXPRESSION ENGINE"
+.rs
+.sp
+PCRE defines some modifiers to change the behavior of the regular expression
+engine. The C++ wrapper defines an auxiliary class, RE_Options, as a vehicle to
+pass such modifiers to a RE class. Currently, the following modifiers are
+supported:
+.sp
+   modifier              description               Perl corresponding
+.sp
+   PCRE_CASELESS         case insensitive match      /i
+   PCRE_MULTILINE        multiple lines match        /m
+   PCRE_DOTALL           dot matches newlines        /s
+   PCRE_DOLLAR_ENDONLY   $ matches only at end       N/A
+   PCRE_EXTRA            strict escape parsing       N/A
+   PCRE_EXTENDED         ignore white spaces         /x
+   PCRE_UTF8             handles UTF8 chars          built-in
+   PCRE_UNGREEDY         reverses * and *?           N/A
+   PCRE_NO_AUTO_CAPTURE  disables capturing parens   N/A (*)
+.sp
+(*) Both Perl and PCRE allow non capturing parentheses by means of the
+"?:" modifier within the pattern itself. e.g. (?:ab|cd) does not
+capture, while (ab|cd) does.
+.P
+For a full account on how each modifier works, please check the
+PCRE API reference page.
+.P
+For each modifier, there are two member functions whose name is made
+out of the modifier in lowercase, without the "PCRE_" prefix. For
+instance, PCRE_CASELESS is handled by
+.sp
+  bool caseless()
+.sp
+which returns true if the modifier is set, and
+.sp
+  RE_Options & set_caseless(bool)
+.sp
+which sets or unsets the modifier. Moreover, PCRE_EXTRA_MATCH_LIMIT can be
+accessed through the \fBset_match_limit()\fP and \fBmatch_limit()\fP member
+functions. Setting \fImatch_limit\fP to a non-zero value will limit the
+execution of pcre to keep it from doing bad things like blowing the stack or
+taking an eternity to return a result. A value of 5000 is good enough to stop
+stack blowup in a 2MB thread stack. Setting \fImatch_limit\fP to zero disables
+match limiting. Alternatively, you can call \fBmatch_limit_recursion()\fP
+which uses PCRE_EXTRA_MATCH_LIMIT_RECURSION to limit how much PCRE
+recurses. \fBmatch_limit()\fP limits the number of matches PCRE does;
+\fBmatch_limit_recursion()\fP limits the depth of internal recursion, and
+therefore the amount of stack that is used.
+.P
+Normally, to pass one or more modifiers to a RE class, you declare
+a \fIRE_Options\fP object, set the appropriate options, and pass this
+object to a RE constructor. Example:
+.sp
+   RE_Options opt;
+   opt.set_caseless(true);
+   if (RE("HELLO", opt).PartialMatch("hello world")) ...
+.sp
+RE_options has two constructors. The default constructor takes no arguments and
+creates a set of flags that are off by default. The optional parameter
+\fIoption_flags\fP is to facilitate transfer of legacy code from C programs.
+This lets you do
+.sp
+   RE(pattern,
+     RE_Options(PCRE_CASELESS|PCRE_MULTILINE)).PartialMatch(str);
+.sp
+However, new code is better off doing
+.sp
+   RE(pattern,
+     RE_Options().set_caseless(true).set_multiline(true))
+       .PartialMatch(str);
+.sp
+If you are going to pass one of the most used modifiers, there are some
+convenience functions that return a RE_Options class with the
+appropriate modifier already set: \fBCASELESS()\fP, \fBUTF8()\fP,
+\fBMULTILINE()\fP, \fBDOTALL\fP(), and \fBEXTENDED()\fP.
+.P
+If you need to set several options at once, and you don't want to go through
+the pains of declaring a RE_Options object and setting several options, there
+is a parallel method that give you such ability on the fly. You can concatenate
+several \fBset_xxxxx()\fP member functions, since each of them returns a
+reference to its class object. For example, to pass PCRE_CASELESS,
+PCRE_EXTENDED, and PCRE_MULTILINE to a RE with one statement, you may write:
+.sp
+   RE(" ^ xyz \e\es+ .* blah$",
+     RE_Options()
+       .set_caseless(true)
+       .set_extended(true)
+       .set_multiline(true)).PartialMatch(sometext);
+.sp
+.
+.
+.SH "SCANNING TEXT INCREMENTALLY"
+.rs
+.sp
+The "Consume" operation may be useful if you want to repeatedly
+match regular expressions at the front of a string and skip over
+them as they match. This requires use of the "StringPiece" type,
+which represents a sub-range of a real string. Like RE, StringPiece
+is defined in the pcrecpp namespace.
+.sp
+  Example: read lines of the form "var = value" from a string.
+     string contents = ...;                 // Fill string somehow
+     pcrecpp::StringPiece input(contents);  // Wrap in a StringPiece
+.sp
+     string var;
+     int value;
+     pcrecpp::RE re("(\e\ew+) = (\e\ed+)\en");
+     while (re.Consume(&input, &var, &value)) {
+       ...;
+     }
+.sp
+Each successful call to "Consume" will set "var/value", and also
+advance "input" so it points past the matched text.
+.P
+The "FindAndConsume" operation is similar to "Consume" but does not
+anchor your match at the beginning of the string. For example, you
+could extract all words from a string by repeatedly calling
+.sp
+  pcrecpp::RE("(\e\ew+)").FindAndConsume(&input, &word)
+.
+.
+.SH "PARSING HEX/OCTAL/C-RADIX NUMBERS"
+.rs
+.sp
+By default, if you pass a pointer to a numeric value, the
+corresponding text is interpreted as a base-10 number. You can
+instead wrap the pointer with a call to one of the operators Hex(),
+Octal(), or CRadix() to interpret the text in another base. The
+CRadix operator interprets C-style "0" (base-8) and "0x" (base-16)
+prefixes, but defaults to base-10.
+.sp
+  Example:
+    int a, b, c, d;
+    pcrecpp::RE re("(.*) (.*) (.*) (.*)");
+    re.FullMatch("100 40 0100 0x40",
+                 pcrecpp::Octal(&a), pcrecpp::Hex(&b),
+                 pcrecpp::CRadix(&c), pcrecpp::CRadix(&d));
+.sp
+will leave 64 in a, b, c, and d.
+.
+.
+.SH "REPLACING PARTS OF STRINGS"
+.rs
+.sp
+You can replace the first match of "pattern" in "str" with "rewrite".
+Within "rewrite", backslash-escaped digits (\e1 to \e9) can be
+used to insert text matching corresponding parenthesized group
+from the pattern. \e0 in "rewrite" refers to the entire matching
+text. For example:
+.sp
+  string s = "yabba dabba doo";
+  pcrecpp::RE("b+").Replace("d", &s);
+.sp
+will leave "s" containing "yada dabba doo". The result is true if the pattern
+matches and a replacement occurs, false otherwise.
+.P
+\fBGlobalReplace\fP is like \fBReplace\fP except that it replaces all
+occurrences of the pattern in the string with the rewrite. Replacements are
+not subject to re-matching. For example:
+.sp
+  string s = "yabba dabba doo";
+  pcrecpp::RE("b+").GlobalReplace("d", &s);
+.sp
+will leave "s" containing "yada dada doo". It returns the number of
+replacements made.
+.P
+\fBExtract\fP is like \fBReplace\fP, except that if the pattern matches,
+"rewrite" is copied into "out" (an additional argument) with substitutions.
+The non-matching portions of "text" are ignored. Returns true iff a match
+occurred and the extraction happened successfully;  if no match occurs, the
+string is left unaffected.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+The C++ wrapper was contributed by Google Inc.
+Copyright (c) 2007 Google Inc.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 08 January 2012
+.fi
diff --git a/8.31/doc/pcregrep.1 b/8.31/doc/pcregrep.1
new file mode 100644
index 0000000..fa31c1b
--- /dev/null
+++ b/8.31/doc/pcregrep.1
@@ -0,0 +1,621 @@
+.TH PCREGREP 1 "04 March 2012" "PCRE 8.31"
+.SH NAME
+pcregrep - a grep with Perl-compatible regular expressions.
+.SH SYNOPSIS
+.B pcregrep [options] [long options] [pattern] [path1 path2 ...]
+.
+.SH DESCRIPTION
+.rs
+.sp
+\fBpcregrep\fP searches files for character patterns, in the same way as other
+grep commands do, but it uses the PCRE regular expression library to support
+patterns that are compatible with the regular expressions of Perl 5. See
+.\" HREF
+\fBpcrepattern\fP(3)
+.\"
+for a full description of syntax and semantics of the regular expressions
+that PCRE supports.
+.P
+Patterns, whether supplied on the command line or in a separate file, are given
+without delimiters. For example:
+.sp
+  pcregrep Thursday /etc/motd
+.sp
+If you attempt to use delimiters (for example, by surrounding a pattern with
+slashes, as is common in Perl scripts), they are interpreted as part of the
+pattern. Quotes can of course be used to delimit patterns on the command line
+because they are interpreted by the shell, and indeed they are required if a
+pattern contains white space or shell metacharacters.
+.P
+The first argument that follows any option settings is treated as the single
+pattern to be matched when neither \fB-e\fP nor \fB-f\fP is present.
+Conversely, when one or both of these options are used to specify patterns, all
+arguments are treated as path names. At least one of \fB-e\fP, \fB-f\fP, or an
+argument pattern must be provided.
+.P
+If no files are specified, \fBpcregrep\fP reads the standard input. The
+standard input can also be referenced by a name consisting of a single hyphen.
+For example:
+.sp
+  pcregrep some-pattern /file1 - /file3
+.sp
+By default, each line that matches a pattern is copied to the standard
+output, and if there is more than one file, the file name is output at the
+start of each line, followed by a colon. However, there are options that can
+change how \fBpcregrep\fP behaves. In particular, the \fB-M\fP option makes it
+possible to search for patterns that span line boundaries. What defines a line
+boundary is controlled by the \fB-N\fP (\fB--newline\fP) option.
+.P
+The amount of memory used for buffering files that are being scanned is
+controlled by a parameter that can be set by the \fB--buffer-size\fP option.
+The default value for this parameter is specified when \fBpcregrep\fP is built,
+with the default default being 20K. A block of memory three times this size is
+used (to allow for buffering "before" and "after" lines). An error occurs if a
+line overflows the buffer.
+.P
+Patterns are limited to 8K or BUFSIZ bytes, whichever is the greater. BUFSIZ is
+defined in \fB<stdio.h>\fP. When there is more than one pattern (specified by
+the use of \fB-e\fP and/or \fB-f\fP), each pattern is applied to each line in
+the order in which they are defined, except that all the \fB-e\fP patterns are
+tried before the \fB-f\fP patterns.
+.P
+By default, as soon as one pattern matches (or fails to match when \fB-v\fP is
+used), no further patterns are considered. However, if \fB--colour\fP (or
+\fB--color\fP) is used to colour the matching substrings, or if
+\fB--only-matching\fP, \fB--file-offsets\fP, or \fB--line-offsets\fP is used to
+output only the part of the line that matched (either shown literally, or as an
+offset), scanning resumes immediately following the match, so that further
+matches on the same line can be found. If there are multiple patterns, they are
+all tried on the remainder of the line, but patterns that follow the one that
+matched are not tried on the earlier part of the line.
+.P
+This is the same behaviour as GNU grep, but it does mean that the order in
+which multiple patterns are specified can affect the output when one of the
+above options is used.
+.P
+Patterns that can match an empty string are accepted, but empty string
+matches are never recognized. An example is the pattern "(super)?(man)?", in
+which all components are optional. This pattern finds all occurrences of both
+"super" and "man"; the output differs from matching with "super|man" when only
+the matching substrings are being shown.
+.P
+If the \fBLC_ALL\fP or \fBLC_CTYPE\fP environment variable is set,
+\fBpcregrep\fP uses the value to set a locale when calling the PCRE library.
+The \fB--locale\fP option can be used to override this.
+.
+.
+.SH "SUPPORT FOR COMPRESSED FILES"
+.rs
+.sp
+It is possible to compile \fBpcregrep\fP so that it uses \fBlibz\fP or
+\fBlibbz2\fP to read files whose names end in \fB.gz\fP or \fB.bz2\fP,
+respectively. You can find out whether your binary has support for one or both
+of these file types by running it with the \fB--help\fP option. If the
+appropriate support is not present, files are treated as plain text. The
+standard input is always so treated.
+.
+.
+.SH "BINARY FILES"
+.rs
+.sp
+By default, a file that contains a binary zero byte within the first 1024 bytes
+is identified as a binary file, and is processed specially. (GNU grep also
+identifies binary files in this manner.) See the \fB--binary-files\fP option
+for a means of changing the way binary files are handled.
+.
+.
+.SH OPTIONS
+.rs
+.sp
+The order in which some of the options appear can affect the output. For
+example, both the \fB-h\fP and \fB-l\fP options affect the printing of file
+names. Whichever comes later in the command line will be the one that takes
+effect. Numerical values for options may be followed by K or M, to signify
+multiplication by 1024 or 1024*1024 respectively.
+.TP 10
+\fB--\fP
+This terminates the list of options. It is useful if the next item on the
+command line starts with a hyphen but is not an option. This allows for the
+processing of patterns and filenames that start with hyphens.
+.TP
+\fB-A\fP \fInumber\fP, \fB--after-context=\fP\fInumber\fP
+Output \fInumber\fP lines of context after each matching line. If filenames
+and/or line numbers are being output, a hyphen separator is used instead of a
+colon for the context lines. A line containing "--" is output between each
+group of lines, unless they are in fact contiguous in the input file. The value
+of \fInumber\fP is expected to be relatively small. However, \fBpcregrep\fP
+guarantees to have up to 8K of following text available for context output.
+.TP
+\fB-a\fP, \fB--text\fP
+Treat binary files as text. This is equivalent to
+\fB--binary-files\fP=\fItext\fP.
+.TP
+\fB-B\fP \fInumber\fP, \fB--before-context=\fP\fInumber\fP
+Output \fInumber\fP lines of context before each matching line. If filenames
+and/or line numbers are being output, a hyphen separator is used instead of a
+colon for the context lines. A line containing "--" is output between each
+group of lines, unless they are in fact contiguous in the input file. The value
+of \fInumber\fP is expected to be relatively small. However, \fBpcregrep\fP
+guarantees to have up to 8K of preceding text available for context output.
+.TP
+\fB--binary-files=\fP\fIword\fP
+Specify how binary files are to be processed. If the word is "binary" (the
+default), pattern matching is performed on binary files, but the only output is
+"Binary file <name> matches" when a match succeeds. If the word is "text",
+which is equivalent to the \fB-a\fP or \fB--text\fP option, binary files are
+processed in the same way as any other file. In this case, when a match
+succeeds, the output may be binary garbage, which can have nasty effects if
+sent to a terminal. If the word is "without-match", which is equivalent to the
+\fB-I\fP option, binary files are not processed at all; they are assumed not to
+be of interest.
+.TP
+\fB--buffer-size=\fP\fInumber\fP
+Set the parameter that controls how much memory is used for buffering files
+that are being scanned.
+.TP
+\fB-C\fP \fInumber\fP, \fB--context=\fP\fInumber\fP
+Output \fInumber\fP lines of context both before and after each matching line.
+This is equivalent to setting both \fB-A\fP and \fB-B\fP to the same value.
+.TP
+\fB-c\fP, \fB--count\fP
+Do not output individual lines from the files that are being scanned; instead
+output the number of lines that would otherwise have been shown. If no lines
+are selected, the number zero is output. If several files are are being
+scanned, a count is output for each of them. However, if the
+\fB--files-with-matches\fP option is also used, only those files whose counts
+are greater than zero are listed. When \fB-c\fP is used, the \fB-A\fP,
+\fB-B\fP, and \fB-C\fP options are ignored.
+.TP
+\fB--colour\fP, \fB--color\fP
+If this option is given without any data, it is equivalent to "--colour=auto".
+If data is required, it must be given in the same shell item, separated by an
+equals sign.
+.TP
+\fB--colour=\fP\fIvalue\fP, \fB--color=\fP\fIvalue\fP
+This option specifies under what circumstances the parts of a line that matched
+a pattern should be coloured in the output. By default, the output is not
+coloured. The value (which is optional, see above) may be "never", "always", or
+"auto". In the latter case, colouring happens only if the standard output is
+connected to a terminal. More resources are used when colouring is enabled,
+because \fBpcregrep\fP has to search for all possible matches in a line, not
+just one, in order to colour them all.
+.sp
+The colour that is used can be specified by setting the environment variable
+PCREGREP_COLOUR or PCREGREP_COLOR. The value of this variable should be a
+string of two numbers, separated by a semicolon. They are copied directly into
+the control string for setting colour on a terminal, so it is your
+responsibility to ensure that they make sense. If neither of the environment
+variables is set, the default is "1;31", which gives red.
+.TP
+\fB-D\fP \fIaction\fP, \fB--devices=\fP\fIaction\fP
+If an input path is not a regular file or a directory, "action" specifies how
+it is to be processed. Valid values are "read" (the default) or "skip"
+(silently skip the path).
+.TP
+\fB-d\fP \fIaction\fP, \fB--directories=\fP\fIaction\fP
+If an input path is a directory, "action" specifies how it is to be processed.
+Valid values are "read" (the default), "recurse" (equivalent to the \fB-r\fP
+option), or "skip" (silently skip the path). In the default case, directories
+are read as if they were ordinary files. In some operating systems the effect
+of reading a directory like this is an immediate end-of-file.
+.TP
+\fB-e\fP \fIpattern\fP, \fB--regex=\fP\fIpattern\fP, \fB--regexp=\fP\fIpattern\fP
+Specify a pattern to be matched. This option can be used multiple times in
+order to specify several patterns. It can also be used as a way of specifying a
+single pattern that starts with a hyphen. When \fB-e\fP is used, no argument
+pattern is taken from the command line; all arguments are treated as file
+names. There is an overall maximum of 100 patterns. They are applied to each
+line in the order in which they are defined until one matches (or fails to
+match if \fB-v\fP is used). If \fB-f\fP is used with \fB-e\fP, the command line
+patterns are matched first, followed by the patterns from the file, independent
+of the order in which these options are specified. Note that multiple use of
+\fB-e\fP is not the same as a single pattern with alternatives. For example,
+X|Y finds the first character in a line that is X or Y, whereas if the two
+patterns are given separately, \fBpcregrep\fP finds X if it is present, even if
+it follows Y in the line. It finds Y only if there is no X in the line. This
+really matters only if you are using \fB-o\fP to show the part(s) of the line
+that matched.
+.TP
+\fB--exclude\fP=\fIpattern\fP
+When \fBpcregrep\fP is searching the files in a directory as a consequence of
+the \fB-r\fP (recursive search) option, any regular files whose names match the
+pattern are excluded. Subdirectories are not excluded by this option; they are
+searched recursively, subject to the \fB--exclude-dir\fP and
+\fB--include_dir\fP options. The pattern is a PCRE regular expression, and is
+matched against the final component of the file name (not the entire path). If
+a file name matches both \fB--include\fP and \fB--exclude\fP, it is excluded.
+There is no short form for this option.
+.TP
+\fB--exclude-dir\fP=\fIpattern\fP
+When \fBpcregrep\fP is searching the contents of a directory as a consequence
+of the \fB-r\fP (recursive search) option, any subdirectories whose names match
+the pattern are excluded. (Note that the \fP--exclude\fP option does not affect
+subdirectories.) The pattern is a PCRE regular expression, and is matched
+against the final component of the name (not the entire path). If a
+subdirectory name matches both \fB--include-dir\fP and \fB--exclude-dir\fP, it
+is excluded. There is no short form for this option.
+.TP
+\fB-F\fP, \fB--fixed-strings\fP
+Interpret each pattern as a list of fixed strings, separated by newlines,
+instead of as a regular expression. The \fB-w\fP (match as a word) and \fB-x\fP
+(match whole line) options can be used with \fB-F\fP. They apply to each of the
+fixed strings. A line is selected if any of the fixed strings are found in it
+(subject to \fB-w\fP or \fB-x\fP, if present).
+.TP
+\fB-f\fP \fIfilename\fP, \fB--file=\fP\fIfilename\fP
+Read a number of patterns from the file, one per line, and match them against
+each line of input. A data line is output if any of the patterns match it. The
+filename can be given as "-" to refer to the standard input. When \fB-f\fP is
+used, patterns specified on the command line using \fB-e\fP may also be
+present; they are tested before the file's patterns. However, no other pattern
+is taken from the command line; all arguments are treated as the names of paths
+to be searched. There is an overall maximum of 100 patterns. Trailing white
+space is removed from each line, and blank lines are ignored. An empty file
+contains no patterns and therefore matches nothing. See also the comments about
+multiple patterns versus a single pattern with alternatives in the description
+of \fB-e\fP above.
+.TP
+\fB--file-list\fP=\fIfilename\fP
+Read a list of files to be searched from the given file, one per line. Trailing
+white space is removed from each line, and blank lines are ignored. These files
+are searched before any others that may be listed on the command line. The
+filename can be given as "-" to refer to the standard input. If \fB--file\fP
+and \fB--file-list\fP are both specified as "-", patterns are read first. This
+is useful only when the standard input is a terminal, from which further lines
+(the list of files) can be read after an end-of-file indication.
+.TP
+\fB--file-offsets\fP
+Instead of showing lines or parts of lines that match, show each match as an
+offset from the start of the file and a length, separated by a comma. In this
+mode, no context is shown. That is, the \fB-A\fP, \fB-B\fP, and \fB-C\fP
+options are ignored. If there is more than one match in a line, each of them is
+shown separately. This option is mutually exclusive with \fB--line-offsets\fP
+and \fB--only-matching\fP.
+.TP
+\fB-H\fP, \fB--with-filename\fP
+Force the inclusion of the filename at the start of output lines when searching
+a single file. By default, the filename is not shown in this case. For matching
+lines, the filename is followed by a colon; for context lines, a hyphen
+separator is used. If a line number is also being output, it follows the file
+name.
+.TP
+\fB-h\fP, \fB--no-filename\fP
+Suppress the output filenames when searching multiple files. By default,
+filenames are shown when multiple files are searched. For matching lines, the
+filename is followed by a colon; for context lines, a hyphen separator is used.
+If a line number is also being output, it follows the file name.
+.TP
+\fB--help\fP
+Output a help message, giving brief details of the command options and file
+type support, and then exit.
+.TP
+\fB-I\fP
+Treat binary files as never matching. This is equivalent to
+\fB--binary-files\fP=\fIwithout-match\fP.
+.TP
+\fB-i\fP, \fB--ignore-case\fP
+Ignore upper/lower case distinctions during comparisons.
+.TP
+\fB--include\fP=\fIpattern\fP
+When \fBpcregrep\fP is searching the files in a directory as a consequence of
+the \fB-r\fP (recursive search) option, only those regular files whose names
+match the pattern are included. Subdirectories are always included and searched
+recursively, subject to the \fP--include-dir\fP and \fB--exclude-dir\fP
+options. The pattern is a PCRE regular expression, and is matched against the
+final component of the file name (not the entire path). If a file name matches
+both \fB--include\fP and \fB--exclude\fP, it is excluded. There is no short
+form for this option.
+.TP
+\fB--include-dir\fP=\fIpattern\fP
+When \fBpcregrep\fP is searching the contents of a directory as a consequence
+of the \fB-r\fP (recursive search) option, only those subdirectories whose
+names match the pattern are included. (Note that the \fB--include\fP option
+does not affect subdirectories.) The pattern is a PCRE regular expression, and
+is matched against the final component of the name (not the entire path). If a
+subdirectory name matches both \fB--include-dir\fP and \fB--exclude-dir\fP, it
+is excluded. There is no short form for this option.
+.TP
+\fB-L\fP, \fB--files-without-match\fP
+Instead of outputting lines from the files, just output the names of the files
+that do not contain any lines that would have been output. Each file name is
+output once, on a separate line.
+.TP
+\fB-l\fP, \fB--files-with-matches\fP
+Instead of outputting lines from the files, just output the names of the files
+containing lines that would have been output. Each file name is output
+once, on a separate line. Searching normally stops as soon as a matching line
+is found in a file. However, if the \fB-c\fP (count) option is also used,
+matching continues in order to obtain the correct count, and those files that
+have at least one match are listed along with their counts. Using this option
+with \fB-c\fP is a way of suppressing the listing of files with no matches.
+.TP
+\fB--label\fP=\fIname\fP
+This option supplies a name to be used for the standard input when file names
+are being output. If not supplied, "(standard input)" is used. There is no
+short form for this option.
+.TP
+\fB--line-buffered\fP
+When this option is given, input is read and processed line by line, and the
+output is flushed after each write. By default, input is read in large chunks,
+unless \fBpcregrep\fP can determine that it is reading from a terminal (which
+is currently possible only in Unix environments). Output to terminal is
+normally automatically flushed by the operating system. This option can be
+useful when the input or output is attached to a pipe and you do not want
+\fBpcregrep\fP to buffer up large amounts of data. However, its use will affect
+performance, and the \fB-M\fP (multiline) option ceases to work.
+.TP
+\fB--line-offsets\fP
+Instead of showing lines or parts of lines that match, show each match as a
+line number, the offset from the start of the line, and a length. The line
+number is terminated by a colon (as usual; see the \fB-n\fP option), and the
+offset and length are separated by a comma. In this mode, no context is shown.
+That is, the \fB-A\fP, \fB-B\fP, and \fB-C\fP options are ignored. If there is
+more than one match in a line, each of them is shown separately. This option is
+mutually exclusive with \fB--file-offsets\fP and \fB--only-matching\fP.
+.TP
+\fB--locale\fP=\fIlocale-name\fP
+This option specifies a locale to be used for pattern matching. It overrides
+the value in the \fBLC_ALL\fP or \fBLC_CTYPE\fP environment variables. If no
+locale is specified, the PCRE library's default (usually the "C" locale) is
+used. There is no short form for this option.
+.TP
+\fB--match-limit\fP=\fInumber\fP
+Processing some regular expression patterns can require a very large amount of
+memory, leading in some cases to a program crash if not enough is available.
+Other patterns may take a very long time to search for all possible matching
+strings. The \fBpcre_exec()\fP function that is called by \fBpcregrep\fP to do
+the matching has two parameters that can limit the resources that it uses.
+.sp
+The \fB--match-limit\fP option provides a means of limiting resource usage
+when processing patterns that are not going to match, but which have a very
+large number of possibilities in their search trees. The classic example is a
+pattern that uses nested unlimited repeats. Internally, PCRE uses a function
+called \fBmatch()\fP which it calls repeatedly (sometimes recursively). The
+limit set by \fB--match-limit\fP is imposed on the number of times this
+function is called during a match, which has the effect of limiting the amount
+of backtracking that can take place.
+.sp
+The \fB--recursion-limit\fP option is similar to \fB--match-limit\fP, but
+instead of limiting the total number of times that \fBmatch()\fP is called, it
+limits the depth of recursive calls, which in turn limits the amount of memory
+that can be used. The recursion depth is a smaller number than the total number
+of calls, because not all calls to \fBmatch()\fP are recursive. This limit is
+of use only if it is set smaller than \fB--match-limit\fP.
+.sp
+There are no short forms for these options. The default settings are specified
+when the PCRE library is compiled, with the default default being 10 million.
+.TP
+\fB-M\fP, \fB--multiline\fP
+Allow patterns to match more than one line. When this option is given, patterns
+may usefully contain literal newline characters and internal occurrences of ^
+and $ characters. The output for a successful match may consist of more than
+one line, the last of which is the one in which the match ended. If the matched
+string ends with a newline sequence the output ends at the end of that line.
+.sp
+When this option is set, the PCRE library is called in "multiline" mode.
+There is a limit to the number of lines that can be matched, imposed by the way
+that \fBpcregrep\fP buffers the input file as it scans it. However,
+\fBpcregrep\fP ensures that at least 8K characters or the rest of the document
+(whichever is the shorter) are available for forward matching, and similarly
+the previous 8K characters (or all the previous characters, if fewer than 8K)
+are guaranteed to be available for lookbehind assertions. This option does not
+work when input is read line by line (see \fP--line-buffered\fP.)
+.TP
+\fB-N\fP \fInewline-type\fP, \fB--newline\fP=\fInewline-type\fP
+The PCRE library supports five different conventions for indicating
+the ends of lines. They are the single-character sequences CR (carriage return)
+and LF (linefeed), the two-character sequence CRLF, an "anycrlf" convention,
+which recognizes any of the preceding three types, and an "any" convention, in
+which any Unicode line ending sequence is assumed to end a line. The Unicode
+sequences are the three just mentioned, plus VT (vertical tab, U+000B), FF
+(form feed, U+000C), NEL (next line, U+0085), LS (line separator, U+2028), and
+PS (paragraph separator, U+2029).
+.sp
+When the PCRE library is built, a default line-ending sequence is specified.
+This is normally the standard sequence for the operating system. Unless
+otherwise specified by this option, \fBpcregrep\fP uses the library's default.
+The possible values for this option are CR, LF, CRLF, ANYCRLF, or ANY. This
+makes it possible to use \fBpcregrep\fP on files that have come from other
+environments without having to modify their line endings. If the data that is
+being scanned does not agree with the convention set by this option,
+\fBpcregrep\fP may behave in strange ways.
+.TP
+\fB-n\fP, \fB--line-number\fP
+Precede each output line by its line number in the file, followed by a colon
+for matching lines or a hyphen for context lines. If the filename is also being
+output, it precedes the line number. This option is forced if
+\fB--line-offsets\fP is used.
+.TP
+\fB--no-jit\fP
+If the PCRE library is built with support for just-in-time compiling (which
+speeds up matching), \fBpcregrep\fP automatically makes use of this, unless it
+was explicitly disabled at build time. This option can be used to disable the
+use of JIT at run time. It is provided for testing and working round problems.
+It should never be needed in normal use.
+.TP
+\fB-o\fP, \fB--only-matching\fP
+Show only the part of the line that matched a pattern instead of the whole
+line. In this mode, no context is shown. That is, the \fB-A\fP, \fB-B\fP, and
+\fB-C\fP options are ignored. If there is more than one match in a line, each
+of them is shown separately. If \fB-o\fP is combined with \fB-v\fP (invert the
+sense of the match to find non-matching lines), no output is generated, but the
+return code is set appropriately. If the matched portion of the line is empty,
+nothing is output unless the file name or line number are being printed, in
+which case they are shown on an otherwise empty line. This option is mutually
+exclusive with \fB--file-offsets\fP and \fB--line-offsets\fP.
+.TP
+\fB-o\fP\fInumber\fP, \fB--only-matching\fP=\fInumber\fP
+Show only the part of the line that matched the capturing parentheses of the
+given number. Up to 32 capturing parentheses are supported. Because these
+options can be given without an argument (see above), if an argument is
+present, it must be given in the same shell item, for example, -o3 or
+--only-matching=2. The comments given for the non-argument case above also
+apply to this case. If the specified capturing parentheses do not exist in the
+pattern, or were not set in the match, nothing is output unless the file name
+or line number are being printed.
+.TP
+\fB-q\fP, \fB--quiet\fP
+Work quietly, that is, display nothing except error messages. The exit
+status indicates whether or not any matches were found.
+.TP
+\fB-r\fP, \fB--recursive\fP
+If any given path is a directory, recursively scan the files it contains,
+taking note of any \fB--include\fP and \fB--exclude\fP settings. By default, a
+directory is read as a normal file; in some operating systems this gives an
+immediate end-of-file. This option is a shorthand for setting the \fB-d\fP
+option to "recurse".
+.TP
+\fB--recursion-limit\fP=\fInumber\fP
+See \fB--match-limit\fP above.
+.TP
+\fB-s\fP, \fB--no-messages\fP
+Suppress error messages about non-existent or unreadable files. Such files are
+quietly skipped. However, the return code is still 2, even if matches were
+found in other files.
+.TP
+\fB-u\fP, \fB--utf-8\fP
+Operate in UTF-8 mode. This option is available only if PCRE has been compiled
+with UTF-8 support. Both patterns and subject lines must be valid strings of
+UTF-8 characters.
+.TP
+\fB-V\fP, \fB--version\fP
+Write the version numbers of \fBpcregrep\fP and the PCRE library that is being
+used to the standard error stream.
+.TP
+\fB-v\fP, \fB--invert-match\fP
+Invert the sense of the match, so that lines which do \fInot\fP match any of
+the patterns are the ones that are found.
+.TP
+\fB-w\fP, \fB--word-regex\fP, \fB--word-regexp\fP
+Force the patterns to match only whole words. This is equivalent to having \eb
+at the start and end of the pattern.
+.TP
+\fB-x\fP, \fB--line-regex\fP, \fB--line-regexp\fP
+Force the patterns to be anchored (each must start matching at the beginning of
+a line) and in addition, require them to match entire lines. This is
+equivalent to having ^ and $ characters at the start and end of each
+alternative branch in every pattern.
+.
+.
+.SH "ENVIRONMENT VARIABLES"
+.rs
+.sp
+The environment variables \fBLC_ALL\fP and \fBLC_CTYPE\fP are examined, in that
+order, for a locale. The first one that is set is used. This can be overridden
+by the \fB--locale\fP option. If no locale is set, the PCRE library's default
+(usually the "C" locale) is used.
+.
+.
+.SH "NEWLINES"
+.rs
+.sp
+The \fB-N\fP (\fB--newline\fP) option allows \fBpcregrep\fP to scan files with
+different newline conventions from the default. However, the setting of this
+option does not affect the way in which \fBpcregrep\fP writes information to
+the standard error and output streams. It uses the string "\en" in C
+\fBprintf()\fP calls to indicate newlines, relying on the C I/O library to
+convert this to an appropriate sequence if the output is sent to a file.
+.
+.
+.SH "OPTIONS COMPATIBILITY"
+.rs
+.sp
+Many of the short and long forms of \fBpcregrep\fP's options are the same
+as in the GNU \fBgrep\fP program. Any long option of the form
+\fB--xxx-regexp\fP (GNU terminology) is also available as \fB--xxx-regex\fP
+(PCRE terminology). However, the \fB--file-list\fP, \fB--file-offsets\fP,
+\fB--include-dir\fP, \fB--line-offsets\fP, \fB--locale\fP, \fB--match-limit\fP,
+\fB-M\fP, \fB--multiline\fP, \fB-N\fP, \fB--newline\fP,
+\fB--recursion-limit\fP, \fB-u\fP, and \fB--utf-8\fP options are specific to
+\fBpcregrep\fP, as is the use of the \fB--only-matching\fP option with a
+capturing parentheses number.
+.P
+Although most of the common options work the same way, a few are different in
+\fBpcregrep\fP. For example, the \fB--include\fP option's argument is a glob
+for GNU \fBgrep\fP, but a regular expression for \fBpcregrep\fP. If both the
+\fB-c\fP and \fB-l\fP options are given, GNU grep lists only file names,
+without counts, but \fBpcregrep\fP gives the counts.
+.
+.
+.SH "OPTIONS WITH DATA"
+.rs
+.sp
+There are four different ways in which an option with data can be specified.
+If a short form option is used, the data may follow immediately, or (with one
+exception) in the next command line item. For example:
+.sp
+  -f/some/file
+  -f /some/file
+.sp
+The exception is the \fB-o\fP option, which may appear with or without data.
+Because of this, if data is present, it must follow immediately in the same
+item, for example -o3.
+.P
+If a long form option is used, the data may appear in the same command line
+item, separated by an equals character, or (with two exceptions) it may appear
+in the next command line item. For example:
+.sp
+  --file=/some/file
+  --file /some/file
+.sp
+Note, however, that if you want to supply a file name beginning with ~ as data
+in a shell command, and have the shell expand ~ to a home directory, you must
+separate the file name from the option, because the shell does not treat ~
+specially unless it is at the start of an item.
+.P
+The exceptions to the above are the \fB--colour\fP (or \fB--color\fP) and
+\fB--only-matching\fP options, for which the data is optional. If one of these
+options does have data, it must be given in the first form, using an equals
+character. Otherwise \fBpcregrep\fP will assume that it has no data.
+.
+.
+.SH "MATCHING ERRORS"
+.rs
+.sp
+It is possible to supply a regular expression that takes a very long time to
+fail to match certain lines. Such patterns normally involve nested indefinite
+repeats, for example: (a+)*\ed when matched against a line of a's with no final
+digit. The PCRE matching function has a resource limit that causes it to abort
+in these circumstances. If this happens, \fBpcregrep\fP outputs an error
+message and the line that caused the problem to the standard error stream. If
+there are more than 20 such errors, \fBpcregrep\fP gives up.
+.P
+The \fB--match-limit\fP option of \fBpcregrep\fP can be used to set the overall
+resource limit; there is a second option called \fB--recursion-limit\fP that
+sets a limit on the amount of memory (usually stack) that is used (see the
+discussion of these options above).
+.
+.
+.SH DIAGNOSTICS
+.rs
+.sp
+Exit status is 0 if any matches were found, 1 if no matches were found, and 2
+for syntax errors, overlong lines, non-existent or inaccessible files (even if
+matches were found in other files) or too many matching errors. Using the
+\fB-s\fP option to suppress error messages about inaccessible files does not
+affect the return code.
+.
+.
+.SH "SEE ALSO"
+.rs
+.sp
+\fBpcrepattern\fP(3), \fBpcretest\fP(1).
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 04 March 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcregrep.txt b/8.31/doc/pcregrep.txt
new file mode 100644
index 0000000..395cd65
--- /dev/null
+++ b/8.31/doc/pcregrep.txt
@@ -0,0 +1,670 @@
+PCREGREP(1)                                                        PCREGREP(1)
+
+
+NAME
+       pcregrep - a grep with Perl-compatible regular expressions.
+
+
+SYNOPSIS
+       pcregrep [options] [long options] [pattern] [path1 path2 ...]
+
+
+DESCRIPTION
+
+       pcregrep  searches  files  for  character  patterns, in the same way as
+       other grep commands do, but it uses the PCRE regular expression library
+       to support patterns that are compatible with the regular expressions of
+       Perl 5. See pcrepattern(3) for a full description of syntax and  seman-
+       tics of the regular expressions that PCRE supports.
+
+       Patterns,  whether  supplied on the command line or in a separate file,
+       are given without delimiters. For example:
+
+         pcregrep Thursday /etc/motd
+
+       If you attempt to use delimiters (for example, by surrounding a pattern
+       with  slashes,  as  is common in Perl scripts), they are interpreted as
+       part of the pattern. Quotes can of course be used to  delimit  patterns
+       on  the  command  line  because  they are interpreted by the shell, and
+       indeed they are required if a pattern contains  white  space  or  shell
+       metacharacters.
+
+       The  first  argument that follows any option settings is treated as the
+       single pattern to be matched when neither -e nor -f is  present.   Con-
+       versely,  when  one  or  both of these options are used to specify pat-
+       terns, all arguments are treated as path names. At least one of -e, -f,
+       or an argument pattern must be provided.
+
+       If no files are specified, pcregrep reads the standard input. The stan-
+       dard input can also be referenced by a  name  consisting  of  a  single
+       hyphen.  For example:
+
+         pcregrep some-pattern /file1 - /file3
+
+       By  default, each line that matches a pattern is copied to the standard
+       output, and if there is more than one file, the file name is output  at
+       the start of each line, followed by a colon. However, there are options
+       that can change how pcregrep behaves.  In  particular,  the  -M  option
+       makes  it  possible  to  search for patterns that span line boundaries.
+       What defines a line  boundary  is  controlled  by  the  -N  (--newline)
+       option.
+
+       The amount of memory used for buffering files that are being scanned is
+       controlled by a parameter that can be set by the --buffer-size  option.
+       The  default  value  for  this  parameter is specified when pcregrep is
+       built, with the default default being 20K.  A  block  of  memory  three
+       times  this  size  is used (to allow for buffering "before" and "after"
+       lines). An error occurs if a line overflows the buffer.
+
+       Patterns are limited to 8K or BUFSIZ bytes, whichever is  the  greater.
+       BUFSIZ  is  defined  in  <stdio.h>. When there is more than one pattern
+       (specified by the use of -e and/or -f), each pattern is applied to each
+       line  in  the  order  in which they are defined, except that all the -e
+       patterns are tried before the -f patterns.
+
+       By default, as soon as one pattern matches (or fails to match  when  -v
+       is  used), no further patterns are considered. However, if --colour (or
+       --color) is used to colour the matching substrings, or if --only-match-
+       ing,  --file-offsets, or --line-offsets is used to output only the part
+       of the line that matched (either shown literally,  or  as  an  offset),
+       scanning  resumes  immediately  following  the  match,  so that further
+       matches on the same line can be found. If there are multiple  patterns,
+       they are all tried on the remainder of the line, but patterns that fol-
+       low the one that matched are not tried on the earlier part of the line.
+
+       This is the same behaviour as GNU grep, but it does mean that the order
+       in which multiple patterns are specified can affect the output when one
+       of the above options is used.
+
+       Patterns that can match an empty string are accepted, but empty  string
+       matches   are   never   recognized.   An   example   is   the   pattern
+       "(super)?(man)?", in which all components are  optional.  This  pattern
+       finds  all  occurrences  of  both "super" and "man"; the output differs
+       from matching with "super|man" when only the  matching  substrings  are
+       being shown.
+
+       If  the  LC_ALL  or LC_CTYPE environment variable is set, pcregrep uses
+       the value to set a locale when calling the PCRE library.  The  --locale
+       option can be used to override this.
+
+
+SUPPORT FOR COMPRESSED FILES
+
+       It  is  possible  to compile pcregrep so that it uses libz or libbz2 to
+       read files whose names end in .gz or .bz2, respectively. You  can  find
+       out whether your binary has support for one or both of these file types
+       by running it with the --help option. If the appropriate support is not
+       present,  files are treated as plain text. The standard input is always
+       so treated.
+
+
+BINARY FILES
+
+       By default, a file that contains a binary zero byte  within  the  first
+       1024  bytes is identified as a binary file, and is processed specially.
+       (GNU grep also  identifies  binary  files  in  this  manner.)  See  the
+       --binary-files  option for a means of changing the way binary files are
+       handled.
+
+
+OPTIONS
+
+       The order in which some of the options appear can  affect  the  output.
+       For  example,  both  the  -h and -l options affect the printing of file
+       names. Whichever comes later in the command line will be the  one  that
+       takes  effect.  Numerical values for options may be followed by K or M,
+       to signify multiplication by 1024 or 1024*1024 respectively.
+
+       --        This terminates the list of options. It is useful if the next
+                 item  on  the command line starts with a hyphen but is not an
+                 option. This allows for the processing of patterns and  file-
+                 names that start with hyphens.
+
+       -A number, --after-context=number
+                 Output  number  lines of context after each matching line. If
+                 filenames and/or line numbers are being output, a hyphen sep-
+                 arator  is  used  instead of a colon for the context lines. A
+                 line containing "--" is output between each group  of  lines,
+                 unless  they  are  in  fact contiguous in the input file. The
+                 value of number is expected to be relatively small.  However,
+                 pcregrep guarantees to have up to 8K of following text avail-
+                 able for context output.
+
+       -a, --text
+                 Treat binary files as text. This is equivalent  to  --binary-
+                 files=text.
+
+       -B number, --before-context=number
+                 Output  number lines of context before each matching line. If
+                 filenames and/or line numbers are being output, a hyphen sep-
+                 arator  is  used  instead of a colon for the context lines. A
+                 line containing "--" is output between each group  of  lines,
+                 unless  they  are  in  fact contiguous in the input file. The
+                 value of number is expected to be relatively small.  However,
+                 pcregrep guarantees to have up to 8K of preceding text avail-
+                 able for context output.
+
+       --binary-files=word
+                 Specify how binary files are to be processed. If the word  is
+                 "binary"  (the  default),  pattern  matching  is performed on
+                 binary files, but the only  output  is  "Binary  file  <name>
+                 matches"  when a match succeeds. If the word is "text", which
+                 is equivalent to the -a or --text option,  binary  files  are
+                 processed  in  the  same way as any other file. In this case,
+                 when a match succeeds, the  output  may  be  binary  garbage,
+                 which  can  have  nasty effects if sent to a terminal. If the
+                 word is  "without-match",  which  is  equivalent  to  the  -I
+                 option,  binary  files  are  not  processed  at all; they are
+                 assumed not to be of interest.
+
+       --buffer-size=number
+                 Set the parameter that controls how much memory is  used  for
+                 buffering files that are being scanned.
+
+       -C number, --context=number
+                 Output  number  lines  of  context both before and after each
+                 matching line.  This is equivalent to setting both -A and  -B
+                 to the same value.
+
+       -c, --count
+                 Do  not output individual lines from the files that are being
+                 scanned; instead output the number of lines that would other-
+                 wise  have  been  shown. If no lines are selected, the number
+                 zero is output. If several files are  are  being  scanned,  a
+                 count  is  output  for each of them. However, if the --files-
+                 with-matches option is also  used,  only  those  files  whose
+                 counts are greater than zero are listed. When -c is used, the
+                 -A, -B, and -C options are ignored.
+
+       --colour, --color
+                 If this option is given without any data, it is equivalent to
+                 "--colour=auto".   If  data  is required, it must be given in
+                 the same shell item, separated by an equals sign.
+
+       --colour=value, --color=value
+                 This option specifies under what circumstances the parts of a
+                 line that matched a pattern should be coloured in the output.
+                 By default, the output is not coloured. The value  (which  is
+                 optional,  see above) may be "never", "always", or "auto". In
+                 the latter case, colouring happens only if the standard  out-
+                 put  is connected to a terminal. More resources are used when
+                 colouring is enabled, because pcregrep has to search for  all
+                 possible  matches in a line, not just one, in order to colour
+                 them all.
+
+                 The colour that is used can be specified by setting the envi-
+                 ronment variable PCREGREP_COLOUR or PCREGREP_COLOR. The value
+                 of this variable should be a string of two numbers, separated
+                 by  a  semicolon.  They  are copied directly into the control
+                 string for setting colour  on  a  terminal,  so  it  is  your
+                 responsibility  to ensure that they make sense. If neither of
+                 the environment variables is  set,  the  default  is  "1;31",
+                 which gives red.
+
+       -D action, --devices=action
+                 If  an  input  path  is  not  a  regular file or a directory,
+                 "action" specifies how it is to be  processed.  Valid  values
+                 are "read" (the default) or "skip" (silently skip the path).
+
+       -d action, --directories=action
+                 If an input path is a directory, "action" specifies how it is
+                 to be processed.  Valid  values  are  "read"  (the  default),
+                 "recurse"  (equivalent to the -r option), or "skip" (silently
+                 skip the path). In the default case, directories are read  as
+                 if  they  were  ordinary files. In some operating systems the
+                 effect of reading a directory like this is an immediate  end-
+                 of-file.
+
+       -e pattern, --regex=pattern, --regexp=pattern
+                 Specify a pattern to be matched. This option can be used mul-
+                 tiple times in order to specify several patterns. It can also
+                 be  used  as a way of specifying a single pattern that starts
+                 with a hyphen. When -e is used, no argument pattern is  taken
+                 from  the  command  line;  all  arguments are treated as file
+                 names. There is an overall maximum of 100 patterns. They  are
+                 applied  to  each line in the order in which they are defined
+                 until one matches (or fails to match if -v is used). If -f is
+                 used  with  -e,  the command line patterns are matched first,
+                 followed by the patterns from the file,  independent  of  the
+                 order  in which these options are specified. Note that multi-
+                 ple use of -e is not the same as a single pattern with alter-
+                 natives. For example, X|Y finds the first character in a line
+                 that is X or Y, whereas if the two patterns are  given  sepa-
+                 rately, pcregrep finds X if it is present, even if it follows
+                 Y in the line. It finds Y only if there is no X in the  line.
+                 This  really  matters  only  if  you are using -o to show the
+                 part(s) of the line that matched.
+
+       --exclude=pattern
+                 When pcregrep is searching the files in a directory as a con-
+                 sequence  of  the  -r  (recursive search) option, any regular
+                 files whose names match the pattern are excluded. Subdirecto-
+                 ries  are  not  excluded  by  this  option; they are searched
+                 recursively, subject to the --exclude-dir  and  --include_dir
+                 options.  The  pattern  is  a PCRE regular expression, and is
+                 matched against the final component of the file name (not the
+                 entire  path).  If  a  file  name  matches both --include and
+                 --exclude, it is excluded.  There is no short form  for  this
+                 option.
+
+       --exclude-dir=pattern
+                 When  pcregrep  is searching the contents of a directory as a
+                 consequence of the -r (recursive search) option,  any  subdi-
+                 rectories  whose  names match the pattern are excluded. (Note
+                 that the --exclude option does  not  affect  subdirectories.)
+                 The  pattern  is  a  PCRE  regular expression, and is matched
+                 against the final component  of  the  name  (not  the  entire
+                 path).  If a subdirectory name matches both --include-dir and
+                 --exclude-dir, it is excluded. There is  no  short  form  for
+                 this option.
+
+       -F, --fixed-strings
+                 Interpret  each pattern as a list of fixed strings, separated
+                 by newlines, instead of  as  a  regular  expression.  The  -w
+                 (match  as  a  word) and -x (match whole line) options can be
+                 used with -F. They apply to each of the fixed strings. A line
+                 is selected if any of the fixed strings are found in it (sub-
+                 ject to -w or -x, if present).
+
+       -f filename, --file=filename
+                 Read a number of patterns from the file, one  per  line,  and
+                 match  them against each line of input. A data line is output
+                 if any of the patterns match it. The filename can be given as
+                 "-" to refer to the standard input. When -f is used, patterns
+                 specified on the command line using -e may also  be  present;
+                 they are tested before the file's patterns. However, no other
+                 pattern is taken from the command  line;  all  arguments  are
+                 treated  as  the  names  of paths to be searched. There is an
+                 overall maximum of 100  patterns.  Trailing  white  space  is
+                 removed from each line, and blank lines are ignored. An empty
+                 file contains no patterns and therefore matches nothing.  See
+                 also  the  comments  about  multiple patterns versus a single
+                 pattern with alternatives in the description of -e above.
+
+       --file-list=filename
+                 Read a list of files to be searched from the given file,  one
+                 per line. Trailing white space is removed from each line, and
+                 blank lines are ignored. These files are searched before  any
+                 others  that  may be listed on the command line. The filename
+                 can be given as "-" to refer to the standard input. If --file
+                 and  --file-list are both specified as "-", patterns are read
+                 first. This is useful only when the standard input is a  ter-
+                 minal,  from  which  further lines (the list of files) can be
+                 read after an end-of-file indication.
+
+       --file-offsets
+                 Instead of showing lines or parts of lines that  match,  show
+                 each  match  as  an  offset  from the start of the file and a
+                 length, separated by a comma. In this  mode,  no  context  is
+                 shown.  That  is,  the -A, -B, and -C options are ignored. If
+                 there is more than one match in a line, each of them is shown
+                 separately.  This  option  is mutually exclusive with --line-
+                 offsets and --only-matching.
+
+       -H, --with-filename
+                 Force the inclusion of the filename at the  start  of  output
+                 lines  when searching a single file. By default, the filename
+                 is not shown in this case. For matching lines,  the  filename
+                 is followed by a colon; for context lines, a hyphen separator
+                 is used. If a line number is also being  output,  it  follows
+                 the file name.
+
+       -h, --no-filename
+                 Suppress  the output filenames when searching multiple files.
+                 By default, filenames  are  shown  when  multiple  files  are
+                 searched.  For  matching lines, the filename is followed by a
+                 colon; for context lines, a hyphen separator is used.   If  a
+                 line number is also being output, it follows the file name.
+
+       --help    Output  a  help  message, giving brief details of the command
+                 options and file type support, and then exit.
+
+       -I        Treat binary files as never matching. This is  equivalent  to
+                 --binary-files=without-match.
+
+       -i, --ignore-case
+                 Ignore upper/lower case distinctions during comparisons.
+
+       --include=pattern
+                 When pcregrep is searching the files in a directory as a con-
+                 sequence of the -r (recursive search) option, only those reg-
+                 ular files whose names match the pattern are included. Subdi-
+                 rectories are always included and searched recursively,  sub-
+                 ject to the --include-dir and --exclude-dir options. The pat-
+                 tern is a PCRE regular expression, and is matched against the
+                 final  component of the file name (not the entire path). If a
+                 file  name  matches  both  --include  and  --exclude,  it  is
+                 excluded. There is no short form for this option.
+
+       --include-dir=pattern
+                 When  pcregrep  is searching the contents of a directory as a
+                 consequence of the -r (recursive search) option,  only  those
+                 subdirectories  whose  names  match the pattern are included.
+                 (Note that the --include option does not  affect  subdirecto-
+                 ries.)  The  pattern  is  a  PCRE  regular expression, and is
+                 matched against the final component  of  the  name  (not  the
+                 entire  path). If a subdirectory name matches both --include-
+                 dir and --exclude-dir, it is excluded. There is no short form
+                 for this option.
+
+       -L, --files-without-match
+                 Instead  of  outputting lines from the files, just output the
+                 names of the files that do not contain any lines  that  would
+                 have  been  output. Each file name is output once, on a sepa-
+                 rate line.
+
+       -l, --files-with-matches
+                 Instead of outputting lines from the files, just  output  the
+                 names of the files containing lines that would have been out-
+                 put. Each file name is  output  once,  on  a  separate  line.
+                 Searching  normally stops as soon as a matching line is found
+                 in a file. However, if the -c (count) option  is  also  used,
+                 matching  continues in order to obtain the correct count, and
+                 those files that have at least one  match  are  listed  along
+                 with their counts. Using this option with -c is a way of sup-
+                 pressing the listing of files with no matches.
+
+       --label=name
+                 This option supplies a name to be used for the standard input
+                 when file names are being output. If not supplied, "(standard
+                 input)" is used. There is no short form for this option.
+
+       --line-buffered
+                 When this option is given, input is read and  processed  line
+                 by  line,  and  the  output  is  flushed after each write. By
+                 default, input is read in large chunks, unless  pcregrep  can
+                 determine  that  it is reading from a terminal (which is cur-
+                 rently possible only in Unix environments). Output to  termi-
+                 nal  is  normally automatically flushed by the operating sys-
+                 tem. This option can be useful when the input  or  output  is
+                 attached  to a pipe and you do not want pcregrep to buffer up
+                 large amounts of data. However, its use will  affect  perfor-
+                 mance, and the -M (multiline) option ceases to work.
+
+       --line-offsets
+                 Instead  of  showing lines or parts of lines that match, show
+                 each match as a line number, the offset from the start of the
+                 line,  and a length. The line number is terminated by a colon
+                 (as usual; see the -n option), and the offset and length  are
+                 separated  by  a  comma.  In  this mode, no context is shown.
+                 That is, the -A, -B, and -C options are ignored. If there  is
+                 more  than  one  match in a line, each of them is shown sepa-
+                 rately. This option is mutually exclusive with --file-offsets
+                 and --only-matching.
+
+       --locale=locale-name
+                 This  option specifies a locale to be used for pattern match-
+                 ing. It overrides the value in the LC_ALL or  LC_CTYPE  envi-
+                 ronment  variables.  If  no  locale  is  specified,  the PCRE
+                 library's default (usually the "C" locale) is used. There  is
+                 no short form for this option.
+
+       --match-limit=number
+                 Processing  some  regular  expression  patterns can require a
+                 very large amount of memory, leading in some cases to a  pro-
+                 gram  crash  if  not enough is available.  Other patterns may
+                 take a very long time to search  for  all  possible  matching
+                 strings.  The pcre_exec() function that is called by pcregrep
+                 to do the matching has two  parameters  that  can  limit  the
+                 resources that it uses.
+
+                 The   --match-limit  option  provides  a  means  of  limiting
+                 resource usage when processing patterns that are not going to
+                 match, but which have a very large number of possibilities in
+                 their search trees. The classic example  is  a  pattern  that
+                 uses  nested unlimited repeats. Internally, PCRE uses a func-
+                 tion called match()  which  it  calls  repeatedly  (sometimes
+                 recursively).  The  limit  set by --match-limit is imposed on
+                 the number of times this function is called during  a  match,
+                 which  has  the effect of limiting the amount of backtracking
+                 that can take place.
+
+                 The --recursion-limit option is similar to --match-limit, but
+                 instead of limiting the total number of times that match() is
+                 called, it limits the depth of recursive calls, which in turn
+                 limits  the  amount of memory that can be used. The recursion
+                 depth is a smaller number than the  total  number  of  calls,
+                 because not all calls to match() are recursive. This limit is
+                 of use only if it is set smaller than --match-limit.
+
+                 There are no short forms for these options. The default  set-
+                 tings  are  specified when the PCRE library is compiled, with
+                 the default default being 10 million.
+
+       -M, --multiline
+                 Allow patterns to match more than one line. When this  option
+                 is given, patterns may usefully contain literal newline char-
+                 acters and internal occurrences of ^ and  $  characters.  The
+                 output  for  a  successful match may consist of more than one
+                 line, the last of which is the one in which the match  ended.
+                 If the matched string ends with a newline sequence the output
+                 ends at the end of that line.
+
+                 When this option is set, the PCRE library is called in  "mul-
+                 tiline"  mode.   There is a limit to the number of lines that
+                 can be matched, imposed by the way that pcregrep buffers  the
+                 input  file as it scans it. However, pcregrep ensures that at
+                 least 8K characters or the rest of the document (whichever is
+                 the  shorter)  are  available for forward matching, and simi-
+                 larly the previous 8K characters (or all the previous charac-
+                 ters,  if  fewer  than 8K) are guaranteed to be available for
+                 lookbehind assertions. This option does not work  when  input
+                 is read line by line (see --line-buffered.)
+
+       -N newline-type, --newline=newline-type
+                 The  PCRE  library  supports  five  different conventions for
+                 indicating the ends of lines. They are  the  single-character
+                 sequences  CR  (carriage  return) and LF (linefeed), the two-
+                 character sequence CRLF, an "anycrlf" convention, which  rec-
+                 ognizes  any  of the preceding three types, and an "any" con-
+                 vention, in which any Unicode line ending sequence is assumed
+                 to  end a line. The Unicode sequences are the three just men-
+                 tioned, plus  VT  (vertical  tab,  U+000B),  FF  (form  feed,
+                 U+000C),   NEL  (next  line,  U+0085),  LS  (line  separator,
+                 U+2028), and PS (paragraph separator, U+2029).
+
+                 When  the  PCRE  library  is  built,  a  default  line-ending
+                 sequence   is  specified.   This  is  normally  the  standard
+                 sequence for the operating system. Unless otherwise specified
+                 by  this  option,  pcregrep  uses the library's default.  The
+                 possible values for this option are CR, LF, CRLF, ANYCRLF, or
+                 ANY.  This  makes  it  possible to use pcregrep on files that
+                 have come from other environments without  having  to  modify
+                 their  line  endings.  If the data that is being scanned does
+                 not agree with the convention set by  this  option,  pcregrep
+                 may behave in strange ways.
+
+       -n, --line-number
+                 Precede each output line by its line number in the file, fol-
+                 lowed by a colon for matching lines or a hyphen  for  context
+                 lines.  If the filename is also being output, it precedes the
+                 line number. This option is forced if --line-offsets is used.
+
+       --no-jit  If the PCRE library is built with  support  for  just-in-time
+                 compiling  (which speeds up matching), pcregrep automatically
+                 makes use of this, unless it was explicitly disabled at build
+                 time.  This  option  can be used to disable the use of JIT at
+                 run time. It is provided for testing and working round  prob-
+                 lems.  It should never be needed in normal use.
+
+       -o, --only-matching
+                 Show only the part of the line that matched a pattern instead
+                 of the whole line. In this mode, no context  is  shown.  That
+                 is,  the -A, -B, and -C options are ignored. If there is more
+                 than one match in a line, each of them is  shown  separately.
+                 If  -o  is combined with -v (invert the sense of the match to
+                 find non-matching lines), no output  is  generated,  but  the
+                 return  code  is set appropriately. If the matched portion of
+                 the line is empty, nothing is output unless the file name  or
+                 line  number  are being printed, in which case they are shown
+                 on an otherwise empty line. This option is mutually exclusive
+                 with --file-offsets and --line-offsets.
+
+       -onumber, --only-matching=number
+                 Show  only  the  part  of the line that matched the capturing
+                 parentheses of the given number. Up to 32 capturing parenthe-
+                 ses are supported. Because these options can be given without
+                 an argument (see above), if an argument is present,  it  must
+                 be  given in the same shell item, for example, -o3 or --only-
+                 matching=2. The comments  given  for  the  non-argument  case
+                 above  also  apply  to  this case. If the specified capturing
+                 parentheses do not exist in the pattern, or were not  set  in
+                 the  match,  nothing  is  output unless the file name or line
+                 number are being printed.
+
+       -q, --quiet
+                 Work quietly, that is, display nothing except error messages.
+                 The  exit  status  indicates  whether or not any matches were
+                 found.
+
+       -r, --recursive
+                 If any given path is a directory, recursively scan the  files
+                 it  contains, taking note of any --include and --exclude set-
+                 tings. By default, a directory is read as a normal  file;  in
+                 some  operating  systems this gives an immediate end-of-file.
+                 This option is a shorthand  for  setting  the  -d  option  to
+                 "recurse".
+
+       --recursion-limit=number
+                 See --match-limit above.
+
+       -s, --no-messages
+                 Suppress  error  messages  about  non-existent  or unreadable
+                 files. Such files are quietly skipped.  However,  the  return
+                 code is still 2, even if matches were found in other files.
+
+       -u, --utf-8
+                 Operate  in UTF-8 mode. This option is available only if PCRE
+                 has been compiled with UTF-8 support. Both patterns and  sub-
+                 ject lines must be valid strings of UTF-8 characters.
+
+       -V, --version
+                 Write  the  version  numbers of pcregrep and the PCRE library
+                 that is being used to the standard error stream.
+
+       -v, --invert-match
+                 Invert the sense of the match, so that  lines  which  do  not
+                 match any of the patterns are the ones that are found.
+
+       -w, --word-regex, --word-regexp
+                 Force the patterns to match only whole words. This is equiva-
+                 lent to having \b at the start and end of the pattern.
+
+       -x, --line-regex, --line-regexp
+                 Force the patterns to be anchored (each must  start  matching
+                 at  the beginning of a line) and in addition, require them to
+                 match entire lines. This is equivalent  to  having  ^  and  $
+                 characters at the start and end of each alternative branch in
+                 every pattern.
+
+
+ENVIRONMENT VARIABLES
+
+       The environment variables LC_ALL and LC_CTYPE  are  examined,  in  that
+       order,  for  a  locale.  The first one that is set is used. This can be
+       overridden by the --locale option.  If  no  locale  is  set,  the  PCRE
+       library's default (usually the "C" locale) is used.
+
+
+NEWLINES
+
+       The  -N (--newline) option allows pcregrep to scan files with different
+       newline conventions from the default.  However,  the  setting  of  this
+       option  does not affect the way in which pcregrep writes information to
+       the standard error and output streams. It uses the  string  "\n"  in  C
+       printf()  calls  to  indicate newlines, relying on the C I/O library to
+       convert this to an appropriate sequence if the  output  is  sent  to  a
+       file.
+
+
+OPTIONS COMPATIBILITY
+
+       Many  of the short and long forms of pcregrep's options are the same as
+       in the GNU grep program. Any long option of the form --xxx-regexp  (GNU
+       terminology)  is also available as --xxx-regex (PCRE terminology). How-
+       ever, the --file-list, --file-offsets,  --include-dir,  --line-offsets,
+       --locale,  --match-limit,  -M, --multiline, -N, --newline, --recursion-
+       limit, -u, and --utf-8 options are specific to pcregrep, as is the  use
+       of the --only-matching option with a capturing parentheses number.
+
+       Although  most  of the common options work the same way, a few are dif-
+       ferent in pcregrep. For example, the --include option's argument  is  a
+       glob  for  GNU grep, but a regular expression for pcregrep. If both the
+       -c and -l options are given, GNU grep lists only  file  names,  without
+       counts, but pcregrep gives the counts.
+
+
+OPTIONS WITH DATA
+
+       There are four different ways in which an option with data can be spec-
+       ified.  If a short form option is used, the  data  may  follow  immedi-
+       ately, or (with one exception) in the next command line item. For exam-
+       ple:
+
+         -f/some/file
+         -f /some/file
+
+       The exception is the -o option, which may appear with or without  data.
+       Because  of this, if data is present, it must follow immediately in the
+       same item, for example -o3.
+
+       If a long form option is used, the data may appear in the same  command
+       line  item,  separated by an equals character, or (with two exceptions)
+       it may appear in the next command line item. For example:
+
+         --file=/some/file
+         --file /some/file
+
+       Note, however, that if you want to supply a file name beginning with  ~
+       as  data  in  a  shell  command,  and have the shell expand ~ to a home
+       directory, you must separate the file name from the option, because the
+       shell does not treat ~ specially unless it is at the start of an item.
+
+       The  exceptions  to the above are the --colour (or --color) and --only-
+       matching options, for which the data  is  optional.  If  one  of  these
+       options  does  have  data, it must be given in the first form, using an
+       equals character. Otherwise pcregrep will assume that it has no data.
+
+
+MATCHING ERRORS
+
+       It is possible to supply a regular expression that takes  a  very  long
+       time  to  fail  to  match certain lines. Such patterns normally involve
+       nested indefinite repeats, for example: (a+)*\d when matched against  a
+       line  of  a's  with  no  final  digit. The PCRE matching function has a
+       resource limit that causes it to abort in these circumstances. If  this
+       happens, pcregrep outputs an error message and the line that caused the
+       problem to the standard error stream. If there are more  than  20  such
+       errors, pcregrep gives up.
+
+       The  --match-limit  option  of  pcregrep can be used to set the overall
+       resource limit; there is a second option called --recursion-limit  that
+       sets  a limit on the amount of memory (usually stack) that is used (see
+       the discussion of these options above).
+
+
+DIAGNOSTICS
+
+       Exit status is 0 if any matches were found, 1 if no matches were found,
+       and  2  for syntax errors, overlong lines, non-existent or inaccessible
+       files (even if matches were found in other files) or too many  matching
+       errors. Using the -s option to suppress error messages about inaccessi-
+       ble files does not affect the return code.
+
+
+SEE ALSO
+
+       pcrepattern(3), pcretest(1).
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 04 March 2012
+       Copyright (c) 1997-2012 University of Cambridge.
diff --git a/8.31/doc/pcrejit.3 b/8.31/doc/pcrejit.3
new file mode 100644
index 0000000..de935a4
--- /dev/null
+++ b/8.31/doc/pcrejit.3
@@ -0,0 +1,403 @@
+.TH PCREJIT 3 "04 May 2012" "PCRE 8.31"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PCRE JUST-IN-TIME COMPILER SUPPORT"
+.rs
+.sp
+Just-in-time compiling is a heavyweight optimization that can greatly speed up
+pattern matching. However, it comes at the cost of extra processing before the
+match is performed. Therefore, it is of most benefit when the same pattern is
+going to be matched many times. This does not necessarily mean many calls of a
+matching function; if the pattern is not anchored, matching attempts may take
+place many times at various positions in the subject, even for a single call.
+Therefore, if the subject string is very long, it may still pay to use JIT for
+one-off matches.
+.P
+JIT support applies only to the traditional Perl-compatible matching function.
+It does not apply when the DFA matching function is being used. The code for
+this support was written by Zoltan Herczeg.
+.
+.
+.SH "8-BIT and 16-BIT SUPPORT"
+.rs
+.sp
+JIT support is available for both the 8-bit and 16-bit PCRE libraries. To keep
+this documentation simple, only the 8-bit interface is described in what
+follows. If you are using the 16-bit library, substitute the 16-bit functions
+and 16-bit structures (for example, \fIpcre16_jit_stack\fP instead of
+\fIpcre_jit_stack\fP).
+.
+.
+.SH "AVAILABILITY OF JIT SUPPORT"
+.rs
+.sp
+JIT support is an optional feature of PCRE. The "configure" option --enable-jit
+(or equivalent CMake option) must be set when PCRE is built if you want to use
+JIT. The support is limited to the following hardware platforms:
+.sp
+  ARM v5, v7, and Thumb2
+  Intel x86 32-bit and 64-bit
+  MIPS 32-bit
+  Power PC 32-bit and 64-bit
+.sp
+If --enable-jit is set on an unsupported platform, compilation fails.
+.P
+A program that is linked with PCRE 8.20 or later can tell if JIT support is
+available by calling \fBpcre_config()\fP with the PCRE_CONFIG_JIT option. The
+result is 1 when JIT is available, and 0 otherwise. However, a simple program
+does not need to check this in order to use JIT. The API is implemented in a
+way that falls back to the interpretive code if JIT is not available.
+.P
+If your program may sometimes be linked with versions of PCRE that are older
+than 8.20, but you want to use JIT when it is available, you can test
+the values of PCRE_MAJOR and PCRE_MINOR, or the existence of a JIT macro such
+as PCRE_CONFIG_JIT, for compile-time control of your code.
+.
+.
+.SH "SIMPLE USE OF JIT"
+.rs
+.sp
+You have to do two things to make use of the JIT support in the simplest way:
+.sp
+  (1) Call \fBpcre_study()\fP with the PCRE_STUDY_JIT_COMPILE option for
+      each compiled pattern, and pass the resulting \fBpcre_extra\fP block to
+      \fBpcre_exec()\fP.
+.sp
+  (2) Use \fBpcre_free_study()\fP to free the \fBpcre_extra\fP block when it is
+      no longer needed, instead of just freeing it yourself. This
+      ensures that any JIT data is also freed.
+.sp
+For a program that may be linked with pre-8.20 versions of PCRE, you can insert
+.sp
+  #ifndef PCRE_STUDY_JIT_COMPILE
+  #define PCRE_STUDY_JIT_COMPILE 0
+  #endif
+.sp
+so that no option is passed to \fBpcre_study()\fP, and then use something like
+this to free the study data:
+.sp
+  #ifdef PCRE_CONFIG_JIT
+      pcre_free_study(study_ptr);
+  #else
+      pcre_free(study_ptr);
+  #endif
+.sp
+PCRE_STUDY_JIT_COMPILE requests the JIT compiler to generate code for complete
+matches. If you want to run partial matches using the PCRE_PARTIAL_HARD or
+PCRE_PARTIAL_SOFT options of \fBpcre_exec()\fP, you should set one or both of
+the following options in addition to, or instead of, PCRE_STUDY_JIT_COMPILE
+when you call \fBpcre_study()\fP:
+.sp
+  PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+  PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+.sp
+The JIT compiler generates different optimized code for each of the three
+modes (normal, soft partial, hard partial). When \fBpcre_exec()\fP is called,
+the appropriate code is run if it is available. Otherwise, the pattern is
+matched using interpretive code.
+.P
+In some circumstances you may need to call additional functions. These are
+described in the section entitled
+.\" HTML <a href="#stackcontrol">
+.\" </a>
+"Controlling the JIT stack"
+.\"
+below.
+.P
+If JIT support is not available, PCRE_STUDY_JIT_COMPILE etc. are ignored, and
+no JIT data is created. Otherwise, the compiled pattern is passed to the JIT
+compiler, which turns it into machine code that executes much faster than the
+normal interpretive code. When \fBpcre_exec()\fP is passed a \fBpcre_extra\fP
+block containing a pointer to JIT code of the appropriate mode (normal or
+hard/soft partial), it obeys that code instead of running the interpreter. The
+result is identical, but the compiled JIT code runs much faster.
+.P
+There are some \fBpcre_exec()\fP options that are not supported for JIT
+execution. There are also some pattern items that JIT cannot handle. Details
+are given below. In both cases, execution automatically falls back to the
+interpretive code. If you want to know whether JIT was actually used for a
+particular match, you should arrange for a JIT callback function to be set up
+as described in the section entitled
+.\" HTML <a href="#stackcontrol">
+.\" </a>
+"Controlling the JIT stack"
+.\"
+below, even if you do not need to supply a non-default JIT stack. Such a
+callback function is called whenever JIT code is about to be obeyed. If the
+execution options are not right for JIT execution, the callback function is not
+obeyed.
+.P
+If the JIT compiler finds an unsupported item, no JIT data is generated. You
+can find out if JIT execution is available after studying a pattern by calling
+\fBpcre_fullinfo()\fP with the PCRE_INFO_JIT option. A result of 1 means that
+JIT compilation was successful. A result of 0 means that JIT support is not
+available, or the pattern was not studied with PCRE_STUDY_JIT_COMPILE etc., or
+the JIT compiler was not able to handle the pattern.
+.P
+Once a pattern has been studied, with or without JIT, it can be used as many
+times as you like for matching different subject strings.
+.
+.
+.SH "UNSUPPORTED OPTIONS AND PATTERN ITEMS"
+.rs
+.sp
+The only \fBpcre_exec()\fP options that are supported for JIT execution are
+PCRE_NO_UTF8_CHECK, PCRE_NO_UTF16_CHECK, PCRE_NOTBOL, PCRE_NOTEOL,
+PCRE_NOTEMPTY, PCRE_NOTEMPTY_ATSTART, PCRE_PARTIAL_HARD, and PCRE_PARTIAL_SOFT.
+.P
+The unsupported pattern items are:
+.sp
+  \eC             match a single byte; not supported in UTF-8 mode
+  (?Cn)          callouts
+  (*PRUNE)       )
+  (*SKIP)        ) backtracking control verbs
+  (*THEN)        )
+.sp
+Support for some of these may be added in future.
+.
+.
+.SH "RETURN VALUES FROM JIT EXECUTION"
+.rs
+.sp
+When a pattern is matched using JIT execution, the return values are the same
+as those given by the interpretive \fBpcre_exec()\fP code, with the addition of
+one new error code: PCRE_ERROR_JIT_STACKLIMIT. This means that the memory used
+for the JIT stack was insufficient. See
+.\" HTML <a href="#stackcontrol">
+.\" </a>
+"Controlling the JIT stack"
+.\"
+below for a discussion of JIT stack usage. For compatibility with the
+interpretive \fBpcre_exec()\fP code, no more than two-thirds of the
+\fIovector\fP argument is used for passing back captured substrings.
+.P
+The error code PCRE_ERROR_MATCHLIMIT is returned by the JIT code if searching a
+very large pattern tree goes on for too long, as it is in the same circumstance
+when JIT is not used, but the details of exactly what is counted are not the
+same. The PCRE_ERROR_RECURSIONLIMIT error code is never returned by JIT
+execution.
+.
+.
+.SH "SAVING AND RESTORING COMPILED PATTERNS"
+.rs
+.sp
+The code that is generated by the JIT compiler is architecture-specific, and is
+also position dependent. For those reasons it cannot be saved (in a file or
+database) and restored later like the bytecode and other data of a compiled
+pattern. Saving and restoring compiled patterns is not something many people
+do. More detail about this facility is given in the
+.\" HREF
+\fBpcreprecompile\fP
+.\"
+documentation. It should be possible to run \fBpcre_study()\fP on a saved and
+restored pattern, and thereby recreate the JIT data, but because JIT
+compilation uses significant resources, it is probably not worth doing this;
+you might as well recompile the original pattern.
+.
+.
+.\" HTML <a name="stackcontrol"></a>
+.SH "CONTROLLING THE JIT STACK"
+.rs
+.sp
+When the compiled JIT code runs, it needs a block of memory to use as a stack.
+By default, it uses 32K on the machine stack. However, some large or
+complicated patterns need more than this. The error PCRE_ERROR_JIT_STACKLIMIT
+is given when there is not enough stack. Three functions are provided for
+managing blocks of memory for use as JIT stacks. There is further discussion
+about the use of JIT stacks in the section entitled
+.\" HTML <a href="#stackcontrol">
+.\" </a>
+"JIT stack FAQ"
+.\"
+below.
+.P
+The \fBpcre_jit_stack_alloc()\fP function creates a JIT stack. Its arguments
+are a starting size and a maximum size, and it returns a pointer to an opaque
+structure of type \fBpcre_jit_stack\fP, or NULL if there is an error. The
+\fBpcre_jit_stack_free()\fP function can be used to free a stack that is no
+longer needed. (For the technically minded: the address space is allocated by
+mmap or VirtualAlloc.)
+.P
+JIT uses far less memory for recursion than the interpretive code,
+and a maximum stack size of 512K to 1M should be more than enough for any
+pattern.
+.P
+The \fBpcre_assign_jit_stack()\fP function specifies which stack JIT code
+should use. Its arguments are as follows:
+.sp
+  pcre_extra         *extra
+  pcre_jit_callback  callback
+  void               *data
+.sp
+The \fIextra\fP argument must be the result of studying a pattern with
+PCRE_STUDY_JIT_COMPILE etc. There are three cases for the values of the other
+two options:
+.sp
+  (1) If \fIcallback\fP is NULL and \fIdata\fP is NULL, an internal 32K block
+      on the machine stack is used.
+.sp
+  (2) If \fIcallback\fP is NULL and \fIdata\fP is not NULL, \fIdata\fP must be
+      a valid JIT stack, the result of calling \fBpcre_jit_stack_alloc()\fP.
+.sp
+  (3) If \fIcallback\fP is not NULL, it must point to a function that is
+      called with \fIdata\fP as an argument at the start of matching, in
+      order to set up a JIT stack. If the return from the callback
+      function is NULL, the internal 32K stack is used; otherwise the
+      return value must be a valid JIT stack, the result of calling
+      \fBpcre_jit_stack_alloc()\fP.
+.sp
+A callback function is obeyed whenever JIT code is about to be run; it is not
+obeyed when \fBpcre_exec()\fP is called with options that are incompatible for
+JIT execution. A callback function can therefore be used to determine whether a
+match operation was executed by JIT or by the interpreter.
+.P
+You may safely use the same JIT stack for more than one pattern (either by
+assigning directly or by callback), as long as the patterns are all matched
+sequentially in the same thread. In a multithread application, if you do not
+specify a JIT stack, or if you assign or pass back NULL from a callback, that
+is thread-safe, because each thread has its own machine stack. However, if you
+assign or pass back a non-NULL JIT stack, this must be a different stack for
+each thread so that the application is thread-safe.
+.P
+Strictly speaking, even more is allowed. You can assign the same non-NULL stack
+to any number of patterns as long as they are not used for matching by multiple
+threads at the same time. For example, you can assign the same stack to all
+compiled patterns, and use a global mutex in the callback to wait until the
+stack is available for use. However, this is an inefficient solution, and not
+recommended.
+.P
+This is a suggestion for how a multithreaded program that needs to set up
+non-default JIT stacks might operate:
+.sp
+  During thread initalization
+    thread_local_var = pcre_jit_stack_alloc(...)
+.sp
+  During thread exit
+    pcre_jit_stack_free(thread_local_var)
+.sp
+  Use a one-line callback function
+    return thread_local_var
+.sp
+All the functions described in this section do nothing if JIT is not available,
+and \fBpcre_assign_jit_stack()\fP does nothing unless the \fBextra\fP argument
+is non-NULL and points to a \fBpcre_extra\fP block that is the result of a
+successful study with PCRE_STUDY_JIT_COMPILE etc.
+.
+.
+.\" HTML <a name="stackfaq"></a>
+.SH "JIT STACK FAQ"
+.rs
+.sp
+(1) Why do we need JIT stacks?
+.sp
+PCRE (and JIT) is a recursive, depth-first engine, so it needs a stack where
+the local data of the current node is pushed before checking its child nodes.
+Allocating real machine stack on some platforms is difficult. For example, the
+stack chain needs to be updated every time if we extend the stack on PowerPC.
+Although it is possible, its updating time overhead decreases performance. So
+we do the recursion in memory.
+.P
+(2) Why don't we simply allocate blocks of memory with \fBmalloc()\fP?
+.sp
+Modern operating systems have a nice feature: they can reserve an address space
+instead of allocating memory. We can safely allocate memory pages inside this
+address space, so the stack could grow without moving memory data (this is
+important because of pointers). Thus we can allocate 1M address space, and use
+only a single memory page (usually 4K) if that is enough. However, we can still
+grow up to 1M anytime if needed.
+.P
+(3) Who "owns" a JIT stack?
+.sp
+The owner of the stack is the user program, not the JIT studied pattern or
+anything else. The user program must ensure that if a stack is used by
+\fBpcre_exec()\fP, (that is, it is assigned to the pattern currently running),
+that stack must not be used by any other threads (to avoid overwriting the same
+memory area). The best practice for multithreaded programs is to allocate a
+stack for each thread, and return this stack through the JIT callback function.
+.P
+(4) When should a JIT stack be freed?
+.sp
+You can free a JIT stack at any time, as long as it will not be used by
+\fBpcre_exec()\fP again. When you assign the stack to a pattern, only a pointer
+is set. There is no reference counting or any other magic. You can free the
+patterns and stacks in any order, anytime. Just \fIdo not\fP call
+\fBpcre_exec()\fP with a pattern pointing to an already freed stack, as that
+will cause SEGFAULT. (Also, do not free a stack currently used by
+\fBpcre_exec()\fP in another thread). You can also replace the stack for a
+pattern at any time. You can even free the previous stack before assigning a
+replacement.
+.P
+(5) Should I allocate/free a stack every time before/after calling
+\fBpcre_exec()\fP?
+.sp
+No, because this is too costly in terms of resources. However, you could
+implement some clever idea which release the stack if it is not used in let's
+say two minutes. The JIT callback can help to achive this without keeping a
+list of the currently JIT studied patterns.
+.P
+(6) OK, the stack is for long term memory allocation. But what happens if a
+pattern causes stack overflow with a stack of 1M? Is that 1M kept until the
+stack is freed?
+.sp
+Especially on embedded sytems, it might be a good idea to release memory
+sometimes without freeing the stack. There is no API for this at the moment.
+Probably a function call which returns with the currently allocated memory for
+any stack and another which allows releasing memory (shrinking the stack) would
+be a good idea if someone needs this.
+.P
+(7) This is too much of a headache. Isn't there any better solution for JIT
+stack handling?
+.sp
+No, thanks to Windows. If POSIX threads were used everywhere, we could throw
+out this complicated API.
+.
+.
+.SH "EXAMPLE CODE"
+.rs
+.sp
+This is a single-threaded example that specifies a JIT stack without using a
+callback.
+.sp
+  int rc;
+  int ovector[30];
+  pcre *re;
+  pcre_extra *extra;
+  pcre_jit_stack *jit_stack;
+.sp
+  re = pcre_compile(pattern, 0, &error, &erroffset, NULL);
+  /* Check for errors */
+  extra = pcre_study(re, PCRE_STUDY_JIT_COMPILE, &error);
+  jit_stack = pcre_jit_stack_alloc(32*1024, 512*1024);
+  /* Check for error (NULL) */
+  pcre_assign_jit_stack(extra, NULL, jit_stack);
+  rc = pcre_exec(re, extra, subject, length, 0, 0, ovector, 30);
+  /* Check results */
+  pcre_free(re);
+  pcre_free_study(extra);
+  pcre_jit_stack_free(jit_stack);
+.sp
+.
+.
+.SH "SEE ALSO"
+.rs
+.sp
+\fBpcreapi\fP(3)
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel (FAQ by Zoltan Herczeg)
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 04 May 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrelimits.3 b/8.31/doc/pcrelimits.3
new file mode 100644
index 0000000..0e25f82
--- /dev/null
+++ b/8.31/doc/pcrelimits.3
@@ -0,0 +1,66 @@
+.TH PCRELIMITS 3 "04 May 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "SIZE AND OTHER LIMITATIONS"
+.rs
+.sp
+There are some size limitations in PCRE but it is hoped that they will never in
+practice be relevant.
+.P
+The maximum length of a compiled pattern is approximately 64K data units (bytes
+for the 8-bit library, 16-bit units for the 16-bit library) if PCRE is compiled
+with the default internal linkage size of 2 bytes. If you want to process
+regular expressions that are truly enormous, you can compile PCRE with an
+internal linkage size of 3 or 4 (when building the 16-bit library, 3 is rounded
+up to 4). See the \fBREADME\fP file in the source distribution and the
+.\" HREF
+\fBpcrebuild\fP
+.\"
+documentation for details. In these cases the limit is substantially larger.
+However, the speed of execution is slower.
+.P
+All values in repeating quantifiers must be less than 65536.
+.P
+There is no limit to the number of parenthesized subpatterns, but there can be
+no more than 65535 capturing subpatterns.
+.P
+There is a limit to the number of forward references to subsequent subpatterns
+of around 200,000. Repeated forward references with fixed upper limits, for
+example, (?2){0,100} when subpattern number 2 is to the right, are included in
+the count. There is no limit to the number of backward references.
+.P
+The maximum length of name for a named subpattern is 32 characters, and the
+maximum number of named subpatterns is 10000.
+.P
+The maximum length of a name in a (*MARK), (*PRUNE), (*SKIP), or (*THEN) verb
+is 255 for the 8-bit library and 65535 for the 16-bit library.
+.P
+The maximum length of a subject string is the largest positive number that an
+integer variable can hold. However, when using the traditional matching
+function, PCRE uses recursion to handle subpatterns and indefinite repetition.
+This means that the available stack space may limit the size of a subject
+string that can be processed by certain patterns. For a discussion of stack
+issues, see the
+.\" HREF
+\fBpcrestack\fP
+.\"
+documentation.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 04 May 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrematching.3 b/8.31/doc/pcrematching.3
new file mode 100644
index 0000000..1a510e0
--- /dev/null
+++ b/8.31/doc/pcrematching.3
@@ -0,0 +1,205 @@
+.TH PCREMATCHING 3 "08 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PCRE MATCHING ALGORITHMS"
+.rs
+.sp
+This document describes the two different algorithms that are available in PCRE
+for matching a compiled regular expression against a given subject string. The
+"standard" algorithm is the one provided by the \fBpcre_exec()\fP and
+\fBpcre16_exec()\fP functions. These work in the same was as Perl's matching
+function, and provide a Perl-compatible matching operation. The just-in-time
+(JIT) optimization that is described in the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation is compatible with these functions.
+.P
+An alternative algorithm is provided by the \fBpcre_dfa_exec()\fP and
+\fBpcre16_dfa_exec()\fP functions; they operate in a different way, and are not
+Perl-compatible. This alternative has advantages and disadvantages compared
+with the standard algorithm, and these are described below.
+.P
+When there is only one possible way in which a given subject string can match a
+pattern, the two algorithms give the same answer. A difference arises, however,
+when there are multiple possibilities. For example, if the pattern
+.sp
+  ^<.*>
+.sp
+is matched against the string
+.sp
+  <something> <something else> <something further>
+.sp
+there are three possible answers. The standard algorithm finds only one of
+them, whereas the alternative algorithm finds all three.
+.
+.
+.SH "REGULAR EXPRESSIONS AS TREES"
+.rs
+.sp
+The set of strings that are matched by a regular expression can be represented
+as a tree structure. An unlimited repetition in the pattern makes the tree of
+infinite size, but it is still a tree. Matching the pattern to a given subject
+string (from a given starting point) can be thought of as a search of the tree.
+There are two ways to search a tree: depth-first and breadth-first, and these
+correspond to the two matching algorithms provided by PCRE.
+.
+.
+.SH "THE STANDARD MATCHING ALGORITHM"
+.rs
+.sp
+In the terminology of Jeffrey Friedl's book "Mastering Regular
+Expressions", the standard algorithm is an "NFA algorithm". It conducts a
+depth-first search of the pattern tree. That is, it proceeds along a single
+path through the tree, checking that the subject matches what is required. When
+there is a mismatch, the algorithm tries any alternatives at the current point,
+and if they all fail, it backs up to the previous branch point in the tree, and
+tries the next alternative branch at that level. This often involves backing up
+(moving to the left) in the subject string as well. The order in which
+repetition branches are tried is controlled by the greedy or ungreedy nature of
+the quantifier.
+.P
+If a leaf node is reached, a matching string has been found, and at that point
+the algorithm stops. Thus, if there is more than one possible match, this
+algorithm returns the first one that it finds. Whether this is the shortest,
+the longest, or some intermediate length depends on the way the greedy and
+ungreedy repetition quantifiers are specified in the pattern.
+.P
+Because it ends up with a single path through the tree, it is relatively
+straightforward for this algorithm to keep track of the substrings that are
+matched by portions of the pattern in parentheses. This provides support for
+capturing parentheses and back references.
+.
+.
+.SH "THE ALTERNATIVE MATCHING ALGORITHM"
+.rs
+.sp
+This algorithm conducts a breadth-first search of the tree. Starting from the
+first matching point in the subject, it scans the subject string from left to
+right, once, character by character, and as it does this, it remembers all the
+paths through the tree that represent valid matches. In Friedl's terminology,
+this is a kind of "DFA algorithm", though it is not implemented as a
+traditional finite state machine (it keeps multiple states active
+simultaneously).
+.P
+Although the general principle of this matching algorithm is that it scans the
+subject string only once, without backtracking, there is one exception: when a
+lookaround assertion is encountered, the characters following or preceding the
+current point have to be independently inspected.
+.P
+The scan continues until either the end of the subject is reached, or there are
+no more unterminated paths. At this point, terminated paths represent the
+different matching possibilities (if there are none, the match has failed).
+Thus, if there is more than one possible match, this algorithm finds all of
+them, and in particular, it finds the longest. The matches are returned in
+decreasing order of length. There is an option to stop the algorithm after the
+first match (which is necessarily the shortest) is found.
+.P
+Note that all the matches that are found start at the same point in the
+subject. If the pattern
+.sp
+  cat(er(pillar)?)?
+.sp
+is matched against the string "the caterpillar catchment", the result will be
+the three strings "caterpillar", "cater", and "cat" that start at the fifth
+character of the subject. The algorithm does not automatically move on to find
+matches that start at later positions.
+.P
+There are a number of features of PCRE regular expressions that are not
+supported by the alternative matching algorithm. They are as follows:
+.P
+1. Because the algorithm finds all possible matches, the greedy or ungreedy
+nature of repetition quantifiers is not relevant. Greedy and ungreedy
+quantifiers are treated in exactly the same way. However, possessive
+quantifiers can make a difference when what follows could also match what is
+quantified, for example in a pattern like this:
+.sp
+  ^a++\ew!
+.sp
+This pattern matches "aaab!" but not "aaa!", which would be matched by a
+non-possessive quantifier. Similarly, if an atomic group is present, it is
+matched as if it were a standalone pattern at the current point, and the
+longest match is then "locked in" for the rest of the overall pattern.
+.P
+2. When dealing with multiple paths through the tree simultaneously, it is not
+straightforward to keep track of captured substrings for the different matching
+possibilities, and PCRE's implementation of this algorithm does not attempt to
+do this. This means that no captured substrings are available.
+.P
+3. Because no substrings are captured, back references within the pattern are
+not supported, and cause errors if encountered.
+.P
+4. For the same reason, conditional expressions that use a backreference as the
+condition or test for a specific group recursion are not supported.
+.P
+5. Because many paths through the tree may be active, the \eK escape sequence,
+which resets the start of the match when encountered (but may be on some paths
+and not on others), is not supported. It causes an error if encountered.
+.P
+6. Callouts are supported, but the value of the \fIcapture_top\fP field is
+always 1, and the value of the \fIcapture_last\fP field is always -1.
+.P
+7. The \eC escape sequence, which (in the standard algorithm) always matches a
+single data unit, even in UTF-8 or UTF-16 modes, is not supported in these
+modes, because the alternative algorithm moves through the subject string one
+character (not data unit) at a time, for all active paths through the tree.
+.P
+8. Except for (*FAIL), the backtracking control verbs such as (*PRUNE) are not
+supported. (*FAIL) is supported, and behaves like a failing negative assertion.
+.
+.
+.SH "ADVANTAGES OF THE ALTERNATIVE ALGORITHM"
+.rs
+.sp
+Using the alternative matching algorithm provides the following advantages:
+.P
+1. All possible matches (at a single point in the subject) are automatically
+found, and in particular, the longest match is found. To find more than one
+match using the standard algorithm, you have to do kludgy things with
+callouts.
+.P
+2. Because the alternative algorithm scans the subject string just once, and
+never needs to backtrack (except for lookbehinds), it is possible to pass very
+long subject strings to the matching function in several pieces, checking for
+partial matching each time. Although it is possible to do multi-segment
+matching using the standard algorithm by retaining partially matched
+substrings, it is more complicated. The
+.\" HREF
+\fBpcrepartial\fP
+.\"
+documentation gives details of partial matching and discusses multi-segment
+matching.
+.
+.
+.SH "DISADVANTAGES OF THE ALTERNATIVE ALGORITHM"
+.rs
+.sp
+The alternative algorithm suffers from a number of disadvantages:
+.P
+1. It is substantially slower than the standard algorithm. This is partly
+because it has to search for all possible matches, but is also because it is
+less susceptible to optimization.
+.P
+2. Capturing parentheses and back references are not supported.
+.P
+3. Although atomic groups are supported, their use does not provide the
+performance advantage that it does for the standard algorithm.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 08 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrepartial.3 b/8.31/doc/pcrepartial.3
new file mode 100644
index 0000000..c93e3d1
--- /dev/null
+++ b/8.31/doc/pcrepartial.3
@@ -0,0 +1,445 @@
+.TH PCREPARTIAL 3 "24 February 2012" "PCRE 8.31"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PARTIAL MATCHING IN PCRE"
+.rs
+.sp
+In normal use of PCRE, if the subject string that is passed to a matching
+function matches as far as it goes, but is too short to match the entire
+pattern, PCRE_ERROR_NOMATCH is returned. There are circumstances where it might
+be helpful to distinguish this case from other cases in which there is no
+match.
+.P
+Consider, for example, an application where a human is required to type in data
+for a field with specific formatting requirements. An example might be a date
+in the form \fIddmmmyy\fP, defined by this pattern:
+.sp
+  ^\ed?\ed(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\ed\ed$
+.sp
+If the application sees the user's keystrokes one by one, and can check that
+what has been typed so far is potentially valid, it is able to raise an error
+as soon as a mistake is made, by beeping and not reflecting the character that
+has been typed, for example. This immediate feedback is likely to be a better
+user interface than a check that is delayed until the entire string has been
+entered. Partial matching can also be useful when the subject string is very
+long and is not all available at once.
+.P
+PCRE supports partial matching by means of the PCRE_PARTIAL_SOFT and
+PCRE_PARTIAL_HARD options, which can be set when calling any of the matching
+functions. For backwards compatibility, PCRE_PARTIAL is a synonym for
+PCRE_PARTIAL_SOFT. The essential difference between the two options is whether
+or not a partial match is preferred to an alternative complete match, though
+the details differ between the two types of matching function. If both options
+are set, PCRE_PARTIAL_HARD takes precedence.
+.P
+If you want to use partial matching with just-in-time optimized code, you must
+call \fBpcre_study()\fP or \fBpcre16_study()\fP with one or both of these
+options:
+.sp
+  PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+  PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE
+.sp
+PCRE_STUDY_JIT_COMPILE should also be set if you are going to run non-partial
+matches on the same pattern. If the appropriate JIT study mode has not been set
+for a match, the interpretive matching code is used.
+.P
+Setting a partial matching option disables two of PCRE's standard
+optimizations. PCRE remembers the last literal data unit in a pattern, and
+abandons matching immediately if it is not present in the subject string. This
+optimization cannot be used for a subject string that might match only
+partially. If the pattern was studied, PCRE knows the minimum length of a
+matching string, and does not bother to run the matching function on shorter
+strings. This optimization is also disabled for partial matching.
+.
+.
+.SH "PARTIAL MATCHING USING pcre_exec() OR pcre16_exec()"
+.rs
+.sp
+A partial match occurs during a call to \fBpcre_exec()\fP or
+\fBpcre16_exec()\fP when the end of the subject string is reached successfully,
+but matching cannot continue because more characters are needed. However, at
+least one character in the subject must have been inspected. This character
+need not form part of the final matched string; lookbehind assertions and the
+\eK escape sequence provide ways of inspecting characters before the start of a
+matched substring. The requirement for inspecting at least one character exists
+because an empty string can always be matched; without such a restriction there
+would always be a partial match of an empty string at the end of the subject.
+.P
+If there are at least two slots in the offsets vector when a partial match is
+returned, the first slot is set to the offset of the earliest character that
+was inspected. For convenience, the second offset points to the end of the
+subject so that a substring can easily be identified.
+.P
+For the majority of patterns, the first offset identifies the start of the
+partially matched string. However, for patterns that contain lookbehind
+assertions, or \eK, or begin with \eb or \eB, earlier characters have been
+inspected while carrying out the match. For example:
+.sp
+  /(?<=abc)123/
+.sp
+This pattern matches "123", but only if it is preceded by "abc". If the subject
+string is "xyzabc12", the offsets after a partial match are for the substring
+"abc12", because all these characters are needed if another match is tried
+with extra characters added to the subject.
+.P
+What happens when a partial match is identified depends on which of the two
+partial matching options are set.
+.
+.
+.SS "PCRE_PARTIAL_SOFT WITH pcre_exec() OR pcre16_exec()"
+.rs
+.sp
+If PCRE_PARTIAL_SOFT is set when \fBpcre_exec()\fP or \fBpcre16_exec()\fP
+identifies a partial match, the partial match is remembered, but matching
+continues as normal, and other alternatives in the pattern are tried. If no
+complete match can be found, PCRE_ERROR_PARTIAL is returned instead of
+PCRE_ERROR_NOMATCH.
+.P
+This option is "soft" because it prefers a complete match over a partial match.
+All the various matching items in a pattern behave as if the subject string is
+potentially complete. For example, \ez, \eZ, and $ match at the end of the
+subject, as normal, and for \eb and \eB the end of the subject is treated as a
+non-alphanumeric.
+.P
+If there is more than one partial match, the first one that was found provides
+the data that is returned. Consider this pattern:
+.sp
+  /123\ew+X|dogY/
+.sp
+If this is matched against the subject string "abc123dog", both
+alternatives fail to match, but the end of the subject is reached during
+matching, so PCRE_ERROR_PARTIAL is returned. The offsets are set to 3 and 9,
+identifying "123dog" as the first partial match that was found. (In this
+example, there are two partial matches, because "dog" on its own partially
+matches the second alternative.)
+.
+.
+.SS "PCRE_PARTIAL_HARD WITH pcre_exec() OR pcre16_exec()"
+.rs
+.sp
+If PCRE_PARTIAL_HARD is set for \fBpcre_exec()\fP or \fBpcre16_exec()\fP,
+PCRE_ERROR_PARTIAL is returned as soon as a partial match is found, without
+continuing to search for possible complete matches. This option is "hard"
+because it prefers an earlier partial match over a later complete match. For
+this reason, the assumption is made that the end of the supplied subject string
+may not be the true end of the available data, and so, if \ez, \eZ, \eb, \eB,
+or $ are encountered at the end of the subject, the result is
+PCRE_ERROR_PARTIAL, provided that at least one character in the subject has
+been inspected.
+.P
+Setting PCRE_PARTIAL_HARD also affects the way UTF-8 and UTF-16
+subject strings are checked for validity. Normally, an invalid sequence
+causes the error PCRE_ERROR_BADUTF8 or PCRE_ERROR_BADUTF16. However, in the
+special case of a truncated character at the end of the subject,
+PCRE_ERROR_SHORTUTF8 or PCRE_ERROR_SHORTUTF16 is returned when
+PCRE_PARTIAL_HARD is set.
+.
+.
+.SS "Comparing hard and soft partial matching"
+.rs
+.sp
+The difference between the two partial matching options can be illustrated by a
+pattern such as:
+.sp
+  /dog(sbody)?/
+.sp
+This matches either "dog" or "dogsbody", greedily (that is, it prefers the
+longer string if possible). If it is matched against the string "dog" with
+PCRE_PARTIAL_SOFT, it yields a complete match for "dog". However, if
+PCRE_PARTIAL_HARD is set, the result is PCRE_ERROR_PARTIAL. On the other hand,
+if the pattern is made ungreedy the result is different:
+.sp
+  /dog(sbody)??/
+.sp
+In this case the result is always a complete match because that is found first,
+and matching never continues after finding a complete match. It might be easier
+to follow this explanation by thinking of the two patterns like this:
+.sp
+  /dog(sbody)?/    is the same as  /dogsbody|dog/
+  /dog(sbody)??/   is the same as  /dog|dogsbody/
+.sp
+The second pattern will never match "dogsbody", because it will always find the
+shorter match first.
+.
+.
+.SH "PARTIAL MATCHING USING pcre_dfa_exec() OR pcre16_dfa_exec()"
+.rs
+.sp
+The DFA functions move along the subject string character by character, without
+backtracking, searching for all possible matches simultaneously. If the end of
+the subject is reached before the end of the pattern, there is the possibility
+of a partial match, again provided that at least one character has been
+inspected.
+.P
+When PCRE_PARTIAL_SOFT is set, PCRE_ERROR_PARTIAL is returned only if there
+have been no complete matches. Otherwise, the complete matches are returned.
+However, if PCRE_PARTIAL_HARD is set, a partial match takes precedence over any
+complete matches. The portion of the string that was inspected when the longest
+partial match was found is set as the first matching string, provided there are
+at least two slots in the offsets vector.
+.P
+Because the DFA functions always search for all possible matches, and there is
+no difference between greedy and ungreedy repetition, their behaviour is
+different from the standard functions when PCRE_PARTIAL_HARD is set. Consider
+the string "dog" matched against the ungreedy pattern shown above:
+.sp
+  /dog(sbody)??/
+.sp
+Whereas the standard functions stop as soon as they find the complete match for
+"dog", the DFA functions also find the partial match for "dogsbody", and so
+return that when PCRE_PARTIAL_HARD is set.
+.
+.
+.SH "PARTIAL MATCHING AND WORD BOUNDARIES"
+.rs
+.sp
+If a pattern ends with one of sequences \eb or \eB, which test for word
+boundaries, partial matching with PCRE_PARTIAL_SOFT can give counter-intuitive
+results. Consider this pattern:
+.sp
+  /\ebcat\eb/
+.sp
+This matches "cat", provided there is a word boundary at either end. If the
+subject string is "the cat", the comparison of the final "t" with a following
+character cannot take place, so a partial match is found. However, normal
+matching carries on, and \eb matches at the end of the subject when the last
+character is a letter, so a complete match is found. The result, therefore, is
+\fInot\fP PCRE_ERROR_PARTIAL. Using PCRE_PARTIAL_HARD in this case does yield
+PCRE_ERROR_PARTIAL, because then the partial match takes precedence.
+.
+.
+.SH "FORMERLY RESTRICTED PATTERNS"
+.rs
+.sp
+For releases of PCRE prior to 8.00, because of the way certain internal
+optimizations were implemented in the \fBpcre_exec()\fP function, the
+PCRE_PARTIAL option (predecessor of PCRE_PARTIAL_SOFT) could not be used with
+all patterns. From release 8.00 onwards, the restrictions no longer apply, and
+partial matching with can be requested for any pattern.
+.P
+Items that were formerly restricted were repeated single characters and
+repeated metasequences. If PCRE_PARTIAL was set for a pattern that did not
+conform to the restrictions, \fBpcre_exec()\fP returned the error code
+PCRE_ERROR_BADPARTIAL (-13). This error code is no longer in use. The
+PCRE_INFO_OKPARTIAL call to \fBpcre_fullinfo()\fP to find out if a compiled
+pattern can be used for partial matching now always returns 1.
+.
+.
+.SH "EXAMPLE OF PARTIAL MATCHING USING PCRETEST"
+.rs
+.sp
+If the escape sequence \eP is present in a \fBpcretest\fP data line, the
+PCRE_PARTIAL_SOFT option is used for the match. Here is a run of \fBpcretest\fP
+that uses the date example quoted above:
+.sp
+    re> /^\ed?\ed(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\ed\ed$/
+  data> 25jun04\eP
+   0: 25jun04
+   1: jun
+  data> 25dec3\eP
+  Partial match: 23dec3
+  data> 3ju\eP
+  Partial match: 3ju
+  data> 3juj\eP
+  No match
+  data> j\eP
+  No match
+.sp
+The first data string is matched completely, so \fBpcretest\fP shows the
+matched substrings. The remaining four strings do not match the complete
+pattern, but the first two are partial matches. Similar output is obtained
+if DFA matching is used.
+.P
+If the escape sequence \eP is present more than once in a \fBpcretest\fP data
+line, the PCRE_PARTIAL_HARD option is set for the match.
+.
+.
+.SH "MULTI-SEGMENT MATCHING WITH pcre_dfa_exec() OR pcre16_dfa_exec()"
+.rs
+.sp
+When a partial match has been found using a DFA matching function, it is
+possible to continue the match by providing additional subject data and calling
+the function again with the same compiled regular expression, this time setting
+the PCRE_DFA_RESTART option. You must pass the same working space as before,
+because this is where details of the previous partial match are stored. Here is
+an example using \fBpcretest\fP, using the \eR escape sequence to set the
+PCRE_DFA_RESTART option (\eD specifies the use of the DFA matching function):
+.sp
+    re> /^\ed?\ed(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\ed\ed$/
+  data> 23ja\eP\eD
+  Partial match: 23ja
+  data> n05\eR\eD
+   0: n05
+.sp
+The first call has "23ja" as the subject, and requests partial matching; the
+second call has "n05" as the subject for the continued (restarted) match.
+Notice that when the match is complete, only the last part is shown; PCRE does
+not retain the previously partially-matched string. It is up to the calling
+program to do that if it needs to.
+.P
+You can set the PCRE_PARTIAL_SOFT or PCRE_PARTIAL_HARD options with
+PCRE_DFA_RESTART to continue partial matching over multiple segments. This
+facility can be used to pass very long subject strings to the DFA matching
+functions.
+.
+.
+.SH "MULTI-SEGMENT MATCHING WITH pcre_exec() OR pcre16_exec()"
+.rs
+.sp
+From release 8.00, the standard matching functions can also be used to do
+multi-segment matching. Unlike the DFA functions, it is not possible to
+restart the previous match with a new segment of data. Instead, new data must
+be added to the previous subject string, and the entire match re-run, starting
+from the point where the partial match occurred. Earlier data can be discarded.
+.P
+It is best to use PCRE_PARTIAL_HARD in this situation, because it does not
+treat the end of a segment as the end of the subject when matching \ez, \eZ,
+\eb, \eB, and $. Consider an unanchored pattern that matches dates:
+.sp
+    re> /\ed?\ed(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\ed\ed/
+  data> The date is 23ja\eP\eP
+  Partial match: 23ja
+.sp
+At this stage, an application could discard the text preceding "23ja", add on
+text from the next segment, and call the matching function again. Unlike the
+DFA matching functions, the entire matching string must always be available,
+and the complete matching process occurs for each call, so more memory and more
+processing time is needed.
+.P
+\fBNote:\fP If the pattern contains lookbehind assertions, or \eK, or starts
+with \eb or \eB, the string that is returned for a partial match includes
+characters that precede the partially matched string itself, because these must
+be retained when adding on more characters for a subsequent matching attempt.
+However, in some cases you may need to retain even earlier characters, as
+discussed in the next section.
+.
+.
+.SH "ISSUES WITH MULTI-SEGMENT MATCHING"
+.rs
+.sp
+Certain types of pattern may give problems with multi-segment matching,
+whichever matching function is used.
+.P
+1. If the pattern contains a test for the beginning of a line, you need to pass
+the PCRE_NOTBOL option when the subject string for any call does start at the
+beginning of a line. There is also a PCRE_NOTEOL option, but in practice when
+doing multi-segment matching you should be using PCRE_PARTIAL_HARD, which
+includes the effect of PCRE_NOTEOL.
+.P
+2. Lookbehind assertions that have already been obeyed are catered for in the
+offsets that are returned for a partial match. However a lookbehind assertion
+later in the pattern could require even earlier characters to be inspected. You
+can handle this case by using the PCRE_INFO_MAXLOOKBEHIND option of the
+\fBpcre_fullinfo()\fP or \fBpcre16_fullinfo()\fP functions to obtain the length
+of the largest lookbehind in the pattern. This length is given in characters,
+not bytes. If you always retain at least that many characters before the
+partially matched string, all should be well. (Of course, near the start of the
+subject, fewer characters may be present; in that case all characters should be
+retained.)
+.P
+3. Because a partial match must always contain at least one character, what
+might be considered a partial match of an empty string actually gives a "no
+match" result. For example:
+.sp
+    re> /c(?<=abc)x/
+  data> ab\eP
+  No match
+.sp
+If the next segment begins "cx", a match should be found, but this will only
+happen if characters from the previous segment are retained. For this reason, a
+"no match" result should be interpreted as "partial match of an empty string"
+when the pattern contains lookbehinds.
+.P
+4. Matching a subject string that is split into multiple segments may not
+always produce exactly the same result as matching over one single long string,
+especially when PCRE_PARTIAL_SOFT is used. The section "Partial Matching and
+Word Boundaries" above describes an issue that arises if the pattern ends with
+\eb or \eB. Another kind of difference may occur when there are multiple
+matching possibilities, because (for PCRE_PARTIAL_SOFT) a partial match result
+is given only when there are no completed matches. This means that as soon as
+the shortest match has been found, continuation to a new subject segment is no
+longer possible. Consider again this \fBpcretest\fP example:
+.sp
+    re> /dog(sbody)?/
+  data> dogsb\eP
+   0: dog
+  data> do\eP\eD
+  Partial match: do
+  data> gsb\eR\eP\eD
+   0: g
+  data> dogsbody\eD
+   0: dogsbody
+   1: dog
+.sp
+The first data line passes the string "dogsb" to a standard matching function,
+setting the PCRE_PARTIAL_SOFT option. Although the string is a partial match
+for "dogsbody", the result is not PCRE_ERROR_PARTIAL, because the shorter
+string "dog" is a complete match. Similarly, when the subject is presented to
+a DFA matching function in several parts ("do" and "gsb" being the first two)
+the match stops when "dog" has been found, and it is not possible to continue.
+On the other hand, if "dogsbody" is presented as a single string, a DFA
+matching function finds both matches.
+.P
+Because of these problems, it is best to use PCRE_PARTIAL_HARD when matching
+multi-segment data. The example above then behaves differently:
+.sp
+    re> /dog(sbody)?/
+  data> dogsb\eP\eP
+  Partial match: dogsb
+  data> do\eP\eD
+  Partial match: do
+  data> gsb\eR\eP\eP\eD
+  Partial match: gsb
+.sp
+5. Patterns that contain alternatives at the top level which do not all start
+with the same pattern item may not work as expected when PCRE_DFA_RESTART is
+used. For example, consider this pattern:
+.sp
+  1234|3789
+.sp
+If the first part of the subject is "ABC123", a partial match of the first
+alternative is found at offset 3. There is no partial match for the second
+alternative, because such a match does not start at the same point in the
+subject string. Attempting to continue with the string "7890" does not yield a
+match because only those alternatives that match at one point in the subject
+are remembered. The problem arises because the start of the second alternative
+matches within the first alternative. There is no problem with anchored
+patterns or patterns such as:
+.sp
+  1234|ABCD
+.sp
+where no string can be a partial match for both alternatives. This is not a
+problem if a standard matching function is used, because the entire match has
+to be rerun each time:
+.sp
+    re> /1234|3789/
+  data> ABC123\eP\eP
+  Partial match: 123
+  data> 1237890
+   0: 3789
+.sp
+Of course, instead of using PCRE_DFA_RESTART, the same technique of re-running
+the entire match can also be used with the DFA matching functions. Another
+possibility is to work with two buffers. If a partial match at offset \fIn\fP
+in the first buffer is followed by "no match" when PCRE_DFA_RESTART is used on
+the second buffer, you can then try a new match starting at offset \fIn+1\fP in
+the first buffer.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 24 February 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrepattern.3 b/8.31/doc/pcrepattern.3
new file mode 100644
index 0000000..6e6cc23
--- /dev/null
+++ b/8.31/doc/pcrepattern.3
@@ -0,0 +1,2918 @@
+.TH PCREPATTERN 3 "04 May 2012" "PCRE 8.31"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PCRE REGULAR EXPRESSION DETAILS"
+.rs
+.sp
+The syntax and semantics of the regular expressions that are supported by PCRE
+are described in detail below. There is a quick-reference syntax summary in the
+.\" HREF
+\fBpcresyntax\fP
+.\"
+page. PCRE tries to match Perl syntax and semantics as closely as it can. PCRE
+also supports some alternative regular expression syntax (which does not
+conflict with the Perl syntax) in order to provide some compatibility with
+regular expressions in Python, .NET, and Oniguruma.
+.P
+Perl's regular expressions are described in its own documentation, and
+regular expressions in general are covered in a number of books, some of which
+have copious examples. Jeffrey Friedl's "Mastering Regular Expressions",
+published by O'Reilly, covers regular expressions in great detail. This
+description of PCRE's regular expressions is intended as reference material.
+.P
+The original operation of PCRE was on strings of one-byte characters. However,
+there is now also support for UTF-8 strings in the original library, and a
+second library that supports 16-bit and UTF-16 character strings. To use these
+features, PCRE must be built to include appropriate support. When using UTF
+strings you must either call the compiling function with the PCRE_UTF8 or
+PCRE_UTF16 option, or the pattern must start with one of these special
+sequences:
+.sp
+  (*UTF8)
+  (*UTF16)
+.sp
+Starting a pattern with such a sequence is equivalent to setting the relevant
+option. This feature is not Perl-compatible. How setting a UTF mode affects
+pattern matching is mentioned in several places below. There is also a summary
+of features in the
+.\" HREF
+\fBpcreunicode\fP
+.\"
+page.
+.P
+Another special sequence that may appear at the start of a pattern or in
+combination with (*UTF8) or (*UTF16) is:
+.sp
+  (*UCP)
+.sp
+This has the same effect as setting the PCRE_UCP option: it causes sequences
+such as \ed and \ew to use Unicode properties to determine character types,
+instead of recognizing only characters with codes less than 128 via a lookup
+table.
+.P
+If a pattern starts with (*NO_START_OPT), it has the same effect as setting the
+PCRE_NO_START_OPTIMIZE option either at compile or matching time. There are
+also some more of these special sequences that are concerned with the handling
+of newlines; they are described below.
+.P
+The remainder of this document discusses the patterns that are supported by
+PCRE when one its main matching functions, \fBpcre_exec()\fP (8-bit) or
+\fBpcre16_exec()\fP (16-bit), is used. PCRE also has alternative matching
+functions, \fBpcre_dfa_exec()\fP and \fBpcre16_dfa_exec()\fP, which match using
+a different algorithm that is not Perl-compatible. Some of the features
+discussed below are not available when DFA matching is used. The advantages and
+disadvantages of the alternative functions, and how they differ from the normal
+functions, are discussed in the
+.\" HREF
+\fBpcrematching\fP
+.\"
+page.
+.
+.
+.\" HTML <a name="newlines"></a>
+.SH "NEWLINE CONVENTIONS"
+.rs
+.sp
+PCRE supports five different conventions for indicating line breaks in
+strings: a single CR (carriage return) character, a single LF (linefeed)
+character, the two-character sequence CRLF, any of the three preceding, or any
+Unicode newline sequence. The
+.\" HREF
+\fBpcreapi\fP
+.\"
+page has
+.\" HTML <a href="pcreapi.html#newlines">
+.\" </a>
+further discussion
+.\"
+about newlines, and shows how to set the newline convention in the
+\fIoptions\fP arguments for the compiling and matching functions.
+.P
+It is also possible to specify a newline convention by starting a pattern
+string with one of the following five sequences:
+.sp
+  (*CR)        carriage return
+  (*LF)        linefeed
+  (*CRLF)      carriage return, followed by linefeed
+  (*ANYCRLF)   any of the three above
+  (*ANY)       all Unicode newline sequences
+.sp
+These override the default and the options given to the compiling function. For
+example, on a Unix system where LF is the default newline sequence, the pattern
+.sp
+  (*CR)a.b
+.sp
+changes the convention to CR. That pattern matches "a\enb" because LF is no
+longer a newline. Note that these special settings, which are not
+Perl-compatible, are recognized only at the very start of a pattern, and that
+they must be in upper case. If more than one of them is present, the last one
+is used.
+.P
+The newline convention affects the interpretation of the dot metacharacter when
+PCRE_DOTALL is not set, and also the behaviour of \eN. However, it does not
+affect what the \eR escape sequence matches. By default, this is any Unicode
+newline sequence, for Perl compatibility. However, this can be changed; see the
+description of \eR in the section entitled
+.\" HTML <a href="#newlineseq">
+.\" </a>
+"Newline sequences"
+.\"
+below. A change of \eR setting can be combined with a change of newline
+convention.
+.
+.
+.SH "CHARACTERS AND METACHARACTERS"
+.rs
+.sp
+A regular expression is a pattern that is matched against a subject string from
+left to right. Most characters stand for themselves in a pattern, and match the
+corresponding characters in the subject. As a trivial example, the pattern
+.sp
+  The quick brown fox
+.sp
+matches a portion of a subject string that is identical to itself. When
+caseless matching is specified (the PCRE_CASELESS option), letters are matched
+independently of case. In a UTF mode, PCRE always understands the concept of
+case for characters whose values are less than 128, so caseless matching is
+always possible. For characters with higher values, the concept of case is
+supported if PCRE is compiled with Unicode property support, but not otherwise.
+If you want to use caseless matching for characters 128 and above, you must
+ensure that PCRE is compiled with Unicode property support as well as with
+UTF support.
+.P
+The power of regular expressions comes from the ability to include alternatives
+and repetitions in the pattern. These are encoded in the pattern by the use of
+\fImetacharacters\fP, which do not stand for themselves but instead are
+interpreted in some special way.
+.P
+There are two different sets of metacharacters: those that are recognized
+anywhere in the pattern except within square brackets, and those that are
+recognized within square brackets. Outside square brackets, the metacharacters
+are as follows:
+.sp
+  \e      general escape character with several uses
+  ^      assert start of string (or line, in multiline mode)
+  $      assert end of string (or line, in multiline mode)
+  .      match any character except newline (by default)
+  [      start character class definition
+  |      start of alternative branch
+  (      start subpattern
+  )      end subpattern
+  ?      extends the meaning of (
+         also 0 or 1 quantifier
+         also quantifier minimizer
+  *      0 or more quantifier
+  +      1 or more quantifier
+         also "possessive quantifier"
+  {      start min/max quantifier
+.sp
+Part of a pattern that is in square brackets is called a "character class". In
+a character class the only metacharacters are:
+.sp
+  \e      general escape character
+  ^      negate the class, but only if the first character
+  -      indicates character range
+.\" JOIN
+  [      POSIX character class (only if followed by POSIX
+           syntax)
+  ]      terminates the character class
+.sp
+The following sections describe the use of each of the metacharacters.
+.
+.
+.SH BACKSLASH
+.rs
+.sp
+The backslash character has several uses. Firstly, if it is followed by a
+character that is not a number or a letter, it takes away any special meaning
+that character may have. This use of backslash as an escape character applies
+both inside and outside character classes.
+.P
+For example, if you want to match a * character, you write \e* in the pattern.
+This escaping action applies whether or not the following character would
+otherwise be interpreted as a metacharacter, so it is always safe to precede a
+non-alphanumeric with backslash to specify that it stands for itself. In
+particular, if you want to match a backslash, you write \e\e.
+.P
+In a UTF mode, only ASCII numbers and letters have any special meaning after a
+backslash. All other characters (in particular, those whose codepoints are
+greater than 127) are treated as literals.
+.P
+If a pattern is compiled with the PCRE_EXTENDED option, white space in the
+pattern (other than in a character class) and characters between a # outside
+a character class and the next newline are ignored. An escaping backslash can
+be used to include a white space or # character as part of the pattern.
+.P
+If you want to remove the special meaning from a sequence of characters, you
+can do so by putting them between \eQ and \eE. This is different from Perl in
+that $ and @ are handled as literals in \eQ...\eE sequences in PCRE, whereas in
+Perl, $ and @ cause variable interpolation. Note the following examples:
+.sp
+  Pattern            PCRE matches   Perl matches
+.sp
+.\" JOIN
+  \eQabc$xyz\eE        abc$xyz        abc followed by the
+                                      contents of $xyz
+  \eQabc\e$xyz\eE       abc\e$xyz       abc\e$xyz
+  \eQabc\eE\e$\eQxyz\eE   abc$xyz        abc$xyz
+.sp
+The \eQ...\eE sequence is recognized both inside and outside character classes.
+An isolated \eE that is not preceded by \eQ is ignored. If \eQ is not followed
+by \eE later in the pattern, the literal interpretation continues to the end of
+the pattern (that is, \eE is assumed at the end). If the isolated \eQ is inside
+a character class, this causes an error, because the character class is not
+terminated.
+.
+.
+.\" HTML <a name="digitsafterbackslash"></a>
+.SS "Non-printing characters"
+.rs
+.sp
+A second use of backslash provides a way of encoding non-printing characters
+in patterns in a visible manner. There is no restriction on the appearance of
+non-printing characters, apart from the binary zero that terminates a pattern,
+but when a pattern is being prepared by text editing, it is often easier to use
+one of the following escape sequences than the binary character it represents:
+.sp
+  \ea        alarm, that is, the BEL character (hex 07)
+  \ecx       "control-x", where x is any ASCII character
+  \ee        escape (hex 1B)
+  \ef        form feed (hex 0C)
+  \en        linefeed (hex 0A)
+  \er        carriage return (hex 0D)
+  \et        tab (hex 09)
+  \eddd      character with octal code ddd, or back reference
+  \exhh      character with hex code hh
+  \ex{hhh..} character with hex code hhh.. (non-JavaScript mode)
+  \euhhhh    character with hex code hhhh (JavaScript mode only)
+.sp
+The precise effect of \ecx is as follows: if x is a lower case letter, it
+is converted to upper case. Then bit 6 of the character (hex 40) is inverted.
+Thus \ecz becomes hex 1A (z is 7A), but \ec{ becomes hex 3B ({ is 7B), while
+\ec; becomes hex 7B (; is 3B). If the byte following \ec has a value greater
+than 127, a compile-time error occurs. This locks out non-ASCII characters in
+all modes. (When PCRE is compiled in EBCDIC mode, all byte values are valid. A
+lower case letter is converted to upper case, and then the 0xc0 bits are
+flipped.)
+.P
+By default, after \ex, from zero to two hexadecimal digits are read (letters
+can be in upper or lower case). Any number of hexadecimal digits may appear
+between \ex{ and }, but the character code is constrained as follows:
+.sp
+  8-bit non-UTF mode    less than 0x100
+  8-bit UTF-8 mode      less than 0x10ffff and a valid codepoint
+  16-bit non-UTF mode   less than 0x10000
+  16-bit UTF-16 mode    less than 0x10ffff and a valid codepoint
+.sp
+Invalid Unicode codepoints are the range 0xd800 to 0xdfff (the so-called
+"surrogate" codepoints).
+.P
+If characters other than hexadecimal digits appear between \ex{ and }, or if
+there is no terminating }, this form of escape is not recognized. Instead, the
+initial \ex will be interpreted as a basic hexadecimal escape, with no
+following digits, giving a character whose value is zero.
+.P
+If the PCRE_JAVASCRIPT_COMPAT option is set, the interpretation of \ex is
+as just described only when it is followed by two hexadecimal digits.
+Otherwise, it matches a literal "x" character. In JavaScript mode, support for
+code points greater than 256 is provided by \eu, which must be followed by
+four hexadecimal digits; otherwise it matches a literal "u" character.
+Character codes specified by \eu in JavaScript mode are constrained in the same
+was as those specified by \ex in non-JavaScript mode.
+.P
+Characters whose value is less than 256 can be defined by either of the two
+syntaxes for \ex (or by \eu in JavaScript mode). There is no difference in the
+way they are handled. For example, \exdc is exactly the same as \ex{dc} (or
+\eu00dc in JavaScript mode).
+.P
+After \e0 up to two further octal digits are read. If there are fewer than two
+digits, just those that are present are used. Thus the sequence \e0\ex\e07
+specifies two binary zeros followed by a BEL character (code value 7). Make
+sure you supply two digits after the initial zero if the pattern character that
+follows is itself an octal digit.
+.P
+The handling of a backslash followed by a digit other than 0 is complicated.
+Outside a character class, PCRE reads it and any following digits as a decimal
+number. If the number is less than 10, or if there have been at least that many
+previous capturing left parentheses in the expression, the entire sequence is
+taken as a \fIback reference\fP. A description of how this works is given
+.\" HTML <a href="#backreferences">
+.\" </a>
+later,
+.\"
+following the discussion of
+.\" HTML <a href="#subpattern">
+.\" </a>
+parenthesized subpatterns.
+.\"
+.P
+Inside a character class, or if the decimal number is greater than 9 and there
+have not been that many capturing subpatterns, PCRE re-reads up to three octal
+digits following the backslash, and uses them to generate a data character. Any
+subsequent digits stand for themselves. The value of the character is
+constrained in the same way as characters specified in hexadecimal.
+For example:
+.sp
+  \e040   is another way of writing a space
+.\" JOIN
+  \e40    is the same, provided there are fewer than 40
+            previous capturing subpatterns
+  \e7     is always a back reference
+.\" JOIN
+  \e11    might be a back reference, or another way of
+            writing a tab
+  \e011   is always a tab
+  \e0113  is a tab followed by the character "3"
+.\" JOIN
+  \e113   might be a back reference, otherwise the
+            character with octal code 113
+.\" JOIN
+  \e377   might be a back reference, otherwise
+            the value 255 (decimal)
+.\" JOIN
+  \e81    is either a back reference, or a binary zero
+            followed by the two characters "8" and "1"
+.sp
+Note that octal values of 100 or greater must not be introduced by a leading
+zero, because no more than three octal digits are ever read.
+.P
+All the sequences that define a single character value can be used both inside
+and outside character classes. In addition, inside a character class, \eb is
+interpreted as the backspace character (hex 08).
+.P
+\eN is not allowed in a character class. \eB, \eR, and \eX are not special
+inside a character class. Like other unrecognized escape sequences, they are
+treated as the literal characters "B", "R", and "X" by default, but cause an
+error if the PCRE_EXTRA option is set. Outside a character class, these
+sequences have different meanings.
+.
+.
+.SS "Unsupported escape sequences"
+.rs
+.sp
+In Perl, the sequences \el, \eL, \eu, and \eU are recognized by its string
+handler and used to modify the case of following characters. By default, PCRE
+does not support these escape sequences. However, if the PCRE_JAVASCRIPT_COMPAT
+option is set, \eU matches a "U" character, and \eu can be used to define a
+character by code point, as described in the previous section.
+.
+.
+.SS "Absolute and relative back references"
+.rs
+.sp
+The sequence \eg followed by an unsigned or a negative number, optionally
+enclosed in braces, is an absolute or relative back reference. A named back
+reference can be coded as \eg{name}. Back references are discussed
+.\" HTML <a href="#backreferences">
+.\" </a>
+later,
+.\"
+following the discussion of
+.\" HTML <a href="#subpattern">
+.\" </a>
+parenthesized subpatterns.
+.\"
+.
+.
+.SS "Absolute and relative subroutine calls"
+.rs
+.sp
+For compatibility with Oniguruma, the non-Perl syntax \eg followed by a name or
+a number enclosed either in angle brackets or single quotes, is an alternative
+syntax for referencing a subpattern as a "subroutine". Details are discussed
+.\" HTML <a href="#onigurumasubroutines">
+.\" </a>
+later.
+.\"
+Note that \eg{...} (Perl syntax) and \eg<...> (Oniguruma syntax) are \fInot\fP
+synonymous. The former is a back reference; the latter is a
+.\" HTML <a href="#subpatternsassubroutines">
+.\" </a>
+subroutine
+.\"
+call.
+.
+.
+.\" HTML <a name="genericchartypes"></a>
+.SS "Generic character types"
+.rs
+.sp
+Another use of backslash is for specifying generic character types:
+.sp
+  \ed     any decimal digit
+  \eD     any character that is not a decimal digit
+  \eh     any horizontal white space character
+  \eH     any character that is not a horizontal white space character
+  \es     any white space character
+  \eS     any character that is not a white space character
+  \ev     any vertical white space character
+  \eV     any character that is not a vertical white space character
+  \ew     any "word" character
+  \eW     any "non-word" character
+.sp
+There is also the single sequence \eN, which matches a non-newline character.
+This is the same as
+.\" HTML <a href="#fullstopdot">
+.\" </a>
+the "." metacharacter
+.\"
+when PCRE_DOTALL is not set. Perl also uses \eN to match characters by name;
+PCRE does not support this.
+.P
+Each pair of lower and upper case escape sequences partitions the complete set
+of characters into two disjoint sets. Any given character matches one, and only
+one, of each pair. The sequences can appear both inside and outside character
+classes. They each match one character of the appropriate type. If the current
+matching point is at the end of the subject string, all of them fail, because
+there is no character to match.
+.P
+For compatibility with Perl, \es does not match the VT character (code 11).
+This makes it different from the the POSIX "space" class. The \es characters
+are HT (9), LF (10), FF (12), CR (13), and space (32). If "use locale;" is
+included in a Perl script, \es may match the VT character. In PCRE, it never
+does.
+.P
+A "word" character is an underscore or any character that is a letter or digit.
+By default, the definition of letters and digits is controlled by PCRE's
+low-valued character tables, and may vary if locale-specific matching is taking
+place (see
+.\" HTML <a href="pcreapi.html#localesupport">
+.\" </a>
+"Locale support"
+.\"
+in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page). For example, in a French locale such as "fr_FR" in Unix-like systems,
+or "french" in Windows, some character codes greater than 128 are used for
+accented letters, and these are then matched by \ew. The use of locales with
+Unicode is discouraged.
+.P
+By default, in a UTF mode, characters with values greater than 128 never match
+\ed, \es, or \ew, and always match \eD, \eS, and \eW. These sequences retain
+their original meanings from before UTF support was available, mainly for
+efficiency reasons. However, if PCRE is compiled with Unicode property support,
+and the PCRE_UCP option is set, the behaviour is changed so that Unicode
+properties are used to determine character types, as follows:
+.sp
+  \ed  any character that \ep{Nd} matches (decimal digit)
+  \es  any character that \ep{Z} matches, plus HT, LF, FF, CR
+  \ew  any character that \ep{L} or \ep{N} matches, plus underscore
+.sp
+The upper case escapes match the inverse sets of characters. Note that \ed
+matches only decimal digits, whereas \ew matches any Unicode digit, as well as
+any Unicode letter, and underscore. Note also that PCRE_UCP affects \eb, and
+\eB because they are defined in terms of \ew and \eW. Matching these sequences
+is noticeably slower when PCRE_UCP is set.
+.P
+The sequences \eh, \eH, \ev, and \eV are features that were added to Perl at
+release 5.10. In contrast to the other sequences, which match only ASCII
+characters by default, these always match certain high-valued codepoints,
+whether or not PCRE_UCP is set. The horizontal space characters are:
+.sp
+  U+0009     Horizontal tab
+  U+0020     Space
+  U+00A0     Non-break space
+  U+1680     Ogham space mark
+  U+180E     Mongolian vowel separator
+  U+2000     En quad
+  U+2001     Em quad
+  U+2002     En space
+  U+2003     Em space
+  U+2004     Three-per-em space
+  U+2005     Four-per-em space
+  U+2006     Six-per-em space
+  U+2007     Figure space
+  U+2008     Punctuation space
+  U+2009     Thin space
+  U+200A     Hair space
+  U+202F     Narrow no-break space
+  U+205F     Medium mathematical space
+  U+3000     Ideographic space
+.sp
+The vertical space characters are:
+.sp
+  U+000A     Linefeed
+  U+000B     Vertical tab
+  U+000C     Form feed
+  U+000D     Carriage return
+  U+0085     Next line
+  U+2028     Line separator
+  U+2029     Paragraph separator
+.sp
+In 8-bit, non-UTF-8 mode, only the characters with codepoints less than 256 are
+relevant.
+.
+.
+.\" HTML <a name="newlineseq"></a>
+.SS "Newline sequences"
+.rs
+.sp
+Outside a character class, by default, the escape sequence \eR matches any
+Unicode newline sequence. In 8-bit non-UTF-8 mode \eR is equivalent to the
+following:
+.sp
+  (?>\er\en|\en|\ex0b|\ef|\er|\ex85)
+.sp
+This is an example of an "atomic group", details of which are given
+.\" HTML <a href="#atomicgroup">
+.\" </a>
+below.
+.\"
+This particular group matches either the two-character sequence CR followed by
+LF, or one of the single characters LF (linefeed, U+000A), VT (vertical tab,
+U+000B), FF (form feed, U+000C), CR (carriage return, U+000D), or NEL (next
+line, U+0085). The two-character sequence is treated as a single unit that
+cannot be split.
+.P
+In other modes, two additional characters whose codepoints are greater than 255
+are added: LS (line separator, U+2028) and PS (paragraph separator, U+2029).
+Unicode character property support is not needed for these characters to be
+recognized.
+.P
+It is possible to restrict \eR to match only CR, LF, or CRLF (instead of the
+complete set of Unicode line endings) by setting the option PCRE_BSR_ANYCRLF
+either at compile time or when the pattern is matched. (BSR is an abbrevation
+for "backslash R".) This can be made the default when PCRE is built; if this is
+the case, the other behaviour can be requested via the PCRE_BSR_UNICODE option.
+It is also possible to specify these settings by starting a pattern string with
+one of the following sequences:
+.sp
+  (*BSR_ANYCRLF)   CR, LF, or CRLF only
+  (*BSR_UNICODE)   any Unicode newline sequence
+.sp
+These override the default and the options given to the compiling function, but
+they can themselves be overridden by options given to a matching function. Note
+that these special settings, which are not Perl-compatible, are recognized only
+at the very start of a pattern, and that they must be in upper case. If more
+than one of them is present, the last one is used. They can be combined with a
+change of newline convention; for example, a pattern can start with:
+.sp
+  (*ANY)(*BSR_ANYCRLF)
+.sp
+They can also be combined with the (*UTF8), (*UTF16), or (*UCP) special
+sequences. Inside a character class, \eR is treated as an unrecognized escape
+sequence, and so matches the letter "R" by default, but causes an error if
+PCRE_EXTRA is set.
+.
+.
+.\" HTML <a name="uniextseq"></a>
+.SS Unicode character properties
+.rs
+.sp
+When PCRE is built with Unicode character property support, three additional
+escape sequences that match characters with specific properties are available.
+When in 8-bit non-UTF-8 mode, these sequences are of course limited to testing
+characters whose codepoints are less than 256, but they do work in this mode.
+The extra escape sequences are:
+.sp
+  \ep{\fIxx\fP}   a character with the \fIxx\fP property
+  \eP{\fIxx\fP}   a character without the \fIxx\fP property
+  \eX       an extended Unicode sequence
+.sp
+The property names represented by \fIxx\fP above are limited to the Unicode
+script names, the general category properties, "Any", which matches any
+character (including newline), and some special PCRE properties (described
+in the
+.\" HTML <a href="#extraprops">
+.\" </a>
+next section).
+.\"
+Other Perl properties such as "InMusicalSymbols" are not currently supported by
+PCRE. Note that \eP{Any} does not match any characters, so always causes a
+match failure.
+.P
+Sets of Unicode characters are defined as belonging to certain scripts. A
+character from one of these sets can be matched using a script name. For
+example:
+.sp
+  \ep{Greek}
+  \eP{Han}
+.sp
+Those that are not part of an identified script are lumped together as
+"Common". The current list of scripts is:
+.P
+Arabic,
+Armenian,
+Avestan,
+Balinese,
+Bamum,
+Batak,
+Bengali,
+Bopomofo,
+Brahmi,
+Braille,
+Buginese,
+Buhid,
+Canadian_Aboriginal,
+Carian,
+Chakma,
+Cham,
+Cherokee,
+Common,
+Coptic,
+Cuneiform,
+Cypriot,
+Cyrillic,
+Deseret,
+Devanagari,
+Egyptian_Hieroglyphs,
+Ethiopic,
+Georgian,
+Glagolitic,
+Gothic,
+Greek,
+Gujarati,
+Gurmukhi,
+Han,
+Hangul,
+Hanunoo,
+Hebrew,
+Hiragana,
+Imperial_Aramaic,
+Inherited,
+Inscriptional_Pahlavi,
+Inscriptional_Parthian,
+Javanese,
+Kaithi,
+Kannada,
+Katakana,
+Kayah_Li,
+Kharoshthi,
+Khmer,
+Lao,
+Latin,
+Lepcha,
+Limbu,
+Linear_B,
+Lisu,
+Lycian,
+Lydian,
+Malayalam,
+Mandaic,
+Meetei_Mayek,
+Meroitic_Cursive,
+Meroitic_Hieroglyphs,
+Miao,
+Mongolian,
+Myanmar,
+New_Tai_Lue,
+Nko,
+Ogham,
+Old_Italic,
+Old_Persian,
+Old_South_Arabian,
+Old_Turkic,
+Ol_Chiki,
+Oriya,
+Osmanya,
+Phags_Pa,
+Phoenician,
+Rejang,
+Runic,
+Samaritan,
+Saurashtra,
+Sharada,
+Shavian,
+Sinhala,
+Sora_Sompeng,
+Sundanese,
+Syloti_Nagri,
+Syriac,
+Tagalog,
+Tagbanwa,
+Tai_Le,
+Tai_Tham,
+Tai_Viet,
+Takri,
+Tamil,
+Telugu,
+Thaana,
+Thai,
+Tibetan,
+Tifinagh,
+Ugaritic,
+Vai,
+Yi.
+.P
+Each character has exactly one Unicode general category property, specified by
+a two-letter abbreviation. For compatibility with Perl, negation can be
+specified by including a circumflex between the opening brace and the property
+name. For example, \ep{^Lu} is the same as \eP{Lu}.
+.P
+If only one letter is specified with \ep or \eP, it includes all the general
+category properties that start with that letter. In this case, in the absence
+of negation, the curly brackets in the escape sequence are optional; these two
+examples have the same effect:
+.sp
+  \ep{L}
+  \epL
+.sp
+The following general category property codes are supported:
+.sp
+  C     Other
+  Cc    Control
+  Cf    Format
+  Cn    Unassigned
+  Co    Private use
+  Cs    Surrogate
+.sp
+  L     Letter
+  Ll    Lower case letter
+  Lm    Modifier letter
+  Lo    Other letter
+  Lt    Title case letter
+  Lu    Upper case letter
+.sp
+  M     Mark
+  Mc    Spacing mark
+  Me    Enclosing mark
+  Mn    Non-spacing mark
+.sp
+  N     Number
+  Nd    Decimal number
+  Nl    Letter number
+  No    Other number
+.sp
+  P     Punctuation
+  Pc    Connector punctuation
+  Pd    Dash punctuation
+  Pe    Close punctuation
+  Pf    Final punctuation
+  Pi    Initial punctuation
+  Po    Other punctuation
+  Ps    Open punctuation
+.sp
+  S     Symbol
+  Sc    Currency symbol
+  Sk    Modifier symbol
+  Sm    Mathematical symbol
+  So    Other symbol
+.sp
+  Z     Separator
+  Zl    Line separator
+  Zp    Paragraph separator
+  Zs    Space separator
+.sp
+The special property L& is also supported: it matches a character that has
+the Lu, Ll, or Lt property, in other words, a letter that is not classified as
+a modifier or "other".
+.P
+The Cs (Surrogate) property applies only to characters in the range U+D800 to
+U+DFFF. Such characters are not valid in Unicode strings and so
+cannot be tested by PCRE, unless UTF validity checking has been turned off
+(see the discussion of PCRE_NO_UTF8_CHECK and PCRE_NO_UTF16_CHECK in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+page). Perl does not support the Cs property.
+.P
+The long synonyms for property names that Perl supports (such as \ep{Letter})
+are not supported by PCRE, nor is it permitted to prefix any of these
+properties with "Is".
+.P
+No character that is in the Unicode table has the Cn (unassigned) property.
+Instead, this property is assumed for any code point that is not in the
+Unicode table.
+.P
+Specifying caseless matching does not affect these escape sequences. For
+example, \ep{Lu} always matches only upper case letters.
+.P
+The \eX escape matches any number of Unicode characters that form an extended
+Unicode sequence. \eX is equivalent to
+.sp
+  (?>\ePM\epM*)
+.sp
+That is, it matches a character without the "mark" property, followed by zero
+or more characters with the "mark" property, and treats the sequence as an
+atomic group
+.\" HTML <a href="#atomicgroup">
+.\" </a>
+(see below).
+.\"
+Characters with the "mark" property are typically accents that affect the
+preceding character. None of them have codepoints less than 256, so in
+8-bit non-UTF-8 mode \eX matches any one character.
+.P
+Note that recent versions of Perl have changed \eX to match what Unicode calls
+an "extended grapheme cluster", which has a more complicated definition.
+.P
+Matching characters by Unicode property is not fast, because PCRE has to search
+a structure that contains data for over fifteen thousand characters. That is
+why the traditional escape sequences such as \ed and \ew do not use Unicode
+properties in PCRE by default, though you can make them do so by setting the
+PCRE_UCP option or by starting the pattern with (*UCP).
+.
+.
+.\" HTML <a name="extraprops"></a>
+.SS PCRE's additional properties
+.rs
+.sp
+As well as the standard Unicode properties described in the previous
+section, PCRE supports four more that make it possible to convert traditional
+escape sequences such as \ew and \es and POSIX character classes to use Unicode
+properties. PCRE uses these non-standard, non-Perl properties internally when
+PCRE_UCP is set. They are:
+.sp
+  Xan   Any alphanumeric character
+  Xps   Any POSIX space character
+  Xsp   Any Perl space character
+  Xwd   Any Perl "word" character
+.sp
+Xan matches characters that have either the L (letter) or the N (number)
+property. Xps matches the characters tab, linefeed, vertical tab, form feed, or
+carriage return, and any other character that has the Z (separator) property.
+Xsp is the same as Xps, except that vertical tab is excluded. Xwd matches the
+same characters as Xan, plus underscore.
+.
+.
+.\" HTML <a name="resetmatchstart"></a>
+.SS "Resetting the match start"
+.rs
+.sp
+The escape sequence \eK causes any previously matched characters not to be
+included in the final matched sequence. For example, the pattern:
+.sp
+  foo\eKbar
+.sp
+matches "foobar", but reports that it has matched "bar". This feature is
+similar to a lookbehind assertion
+.\" HTML <a href="#lookbehind">
+.\" </a>
+(described below).
+.\"
+However, in this case, the part of the subject before the real match does not
+have to be of fixed length, as lookbehind assertions do. The use of \eK does
+not interfere with the setting of
+.\" HTML <a href="#subpattern">
+.\" </a>
+captured substrings.
+.\"
+For example, when the pattern
+.sp
+  (foo)\eKbar
+.sp
+matches "foobar", the first substring is still set to "foo".
+.P
+Perl documents that the use of \eK within assertions is "not well defined". In
+PCRE, \eK is acted upon when it occurs inside positive assertions, but is
+ignored in negative assertions.
+.
+.
+.\" HTML <a name="smallassertions"></a>
+.SS "Simple assertions"
+.rs
+.sp
+The final use of backslash is for certain simple assertions. An assertion
+specifies a condition that has to be met at a particular point in a match,
+without consuming any characters from the subject string. The use of
+subpatterns for more complicated assertions is described
+.\" HTML <a href="#bigassertions">
+.\" </a>
+below.
+.\"
+The backslashed assertions are:
+.sp
+  \eb     matches at a word boundary
+  \eB     matches when not at a word boundary
+  \eA     matches at the start of the subject
+  \eZ     matches at the end of the subject
+          also matches before a newline at the end of the subject
+  \ez     matches only at the end of the subject
+  \eG     matches at the first matching position in the subject
+.sp
+Inside a character class, \eb has a different meaning; it matches the backspace
+character. If any other of these assertions appears in a character class, by
+default it matches the corresponding literal character (for example, \eB
+matches the letter B). However, if the PCRE_EXTRA option is set, an "invalid
+escape sequence" error is generated instead.
+.P
+A word boundary is a position in the subject string where the current character
+and the previous character do not both match \ew or \eW (i.e. one matches
+\ew and the other matches \eW), or the start or end of the string if the
+first or last character matches \ew, respectively. In a UTF mode, the meanings
+of \ew and \eW can be changed by setting the PCRE_UCP option. When this is
+done, it also affects \eb and \eB. Neither PCRE nor Perl has a separate "start
+of word" or "end of word" metasequence. However, whatever follows \eb normally
+determines which it is. For example, the fragment \eba matches "a" at the start
+of a word.
+.P
+The \eA, \eZ, and \ez assertions differ from the traditional circumflex and
+dollar (described in the next section) in that they only ever match at the very
+start and end of the subject string, whatever options are set. Thus, they are
+independent of multiline mode. These three assertions are not affected by the
+PCRE_NOTBOL or PCRE_NOTEOL options, which affect only the behaviour of the
+circumflex and dollar metacharacters. However, if the \fIstartoffset\fP
+argument of \fBpcre_exec()\fP is non-zero, indicating that matching is to start
+at a point other than the beginning of the subject, \eA can never match. The
+difference between \eZ and \ez is that \eZ matches before a newline at the end
+of the string as well as at the very end, whereas \ez matches only at the end.
+.P
+The \eG assertion is true only when the current matching position is at the
+start point of the match, as specified by the \fIstartoffset\fP argument of
+\fBpcre_exec()\fP. It differs from \eA when the value of \fIstartoffset\fP is
+non-zero. By calling \fBpcre_exec()\fP multiple times with appropriate
+arguments, you can mimic Perl's /g option, and it is in this kind of
+implementation where \eG can be useful.
+.P
+Note, however, that PCRE's interpretation of \eG, as the start of the current
+match, is subtly different from Perl's, which defines it as the end of the
+previous match. In Perl, these can be different when the previously matched
+string was empty. Because PCRE does just one match at a time, it cannot
+reproduce this behaviour.
+.P
+If all the alternatives of a pattern begin with \eG, the expression is anchored
+to the starting match position, and the "anchored" flag is set in the compiled
+regular expression.
+.
+.
+.SH "CIRCUMFLEX AND DOLLAR"
+.rs
+.sp
+Outside a character class, in the default matching mode, the circumflex
+character is an assertion that is true only if the current matching point is
+at the start of the subject string. If the \fIstartoffset\fP argument of
+\fBpcre_exec()\fP is non-zero, circumflex can never match if the PCRE_MULTILINE
+option is unset. Inside a character class, circumflex has an entirely different
+meaning
+.\" HTML <a href="#characterclass">
+.\" </a>
+(see below).
+.\"
+.P
+Circumflex need not be the first character of the pattern if a number of
+alternatives are involved, but it should be the first thing in each alternative
+in which it appears if the pattern is ever to match that branch. If all
+possible alternatives start with a circumflex, that is, if the pattern is
+constrained to match only at the start of the subject, it is said to be an
+"anchored" pattern. (There are also other constructs that can cause a pattern
+to be anchored.)
+.P
+A dollar character is an assertion that is true only if the current matching
+point is at the end of the subject string, or immediately before a newline
+at the end of the string (by default). Dollar need not be the last character of
+the pattern if a number of alternatives are involved, but it should be the last
+item in any branch in which it appears. Dollar has no special meaning in a
+character class.
+.P
+The meaning of dollar can be changed so that it matches only at the very end of
+the string, by setting the PCRE_DOLLAR_ENDONLY option at compile time. This
+does not affect the \eZ assertion.
+.P
+The meanings of the circumflex and dollar characters are changed if the
+PCRE_MULTILINE option is set. When this is the case, a circumflex matches
+immediately after internal newlines as well as at the start of the subject
+string. It does not match after a newline that ends the string. A dollar
+matches before any newlines in the string, as well as at the very end, when
+PCRE_MULTILINE is set. When newline is specified as the two-character
+sequence CRLF, isolated CR and LF characters do not indicate newlines.
+.P
+For example, the pattern /^abc$/ matches the subject string "def\enabc" (where
+\en represents a newline) in multiline mode, but not otherwise. Consequently,
+patterns that are anchored in single line mode because all branches start with
+^ are not anchored in multiline mode, and a match for circumflex is possible
+when the \fIstartoffset\fP argument of \fBpcre_exec()\fP is non-zero. The
+PCRE_DOLLAR_ENDONLY option is ignored if PCRE_MULTILINE is set.
+.P
+Note that the sequences \eA, \eZ, and \ez can be used to match the start and
+end of the subject in both modes, and if all branches of a pattern start with
+\eA it is always anchored, whether or not PCRE_MULTILINE is set.
+.
+.
+.\" HTML <a name="fullstopdot"></a>
+.SH "FULL STOP (PERIOD, DOT) AND \eN"
+.rs
+.sp
+Outside a character class, a dot in the pattern matches any one character in
+the subject string except (by default) a character that signifies the end of a
+line.
+.P
+When a line ending is defined as a single character, dot never matches that
+character; when the two-character sequence CRLF is used, dot does not match CR
+if it is immediately followed by LF, but otherwise it matches all characters
+(including isolated CRs and LFs). When any Unicode line endings are being
+recognized, dot does not match CR or LF or any of the other line ending
+characters.
+.P
+The behaviour of dot with regard to newlines can be changed. If the PCRE_DOTALL
+option is set, a dot matches any one character, without exception. If the
+two-character sequence CRLF is present in the subject string, it takes two dots
+to match it.
+.P
+The handling of dot is entirely independent of the handling of circumflex and
+dollar, the only relationship being that they both involve newlines. Dot has no
+special meaning in a character class.
+.P
+The escape sequence \eN behaves like a dot, except that it is not affected by
+the PCRE_DOTALL option. In other words, it matches any character except one
+that signifies the end of a line. Perl also uses \eN to match characters by
+name; PCRE does not support this.
+.
+.
+.SH "MATCHING A SINGLE DATA UNIT"
+.rs
+.sp
+Outside a character class, the escape sequence \eC matches any one data unit,
+whether or not a UTF mode is set. In the 8-bit library, one data unit is one
+byte; in the 16-bit library it is a 16-bit unit. Unlike a dot, \eC always
+matches line-ending characters. The feature is provided in Perl in order to
+match individual bytes in UTF-8 mode, but it is unclear how it can usefully be
+used. Because \eC breaks up characters into individual data units, matching one
+unit with \eC in a UTF mode means that the rest of the string may start with a
+malformed UTF character. This has undefined results, because PCRE assumes that
+it is dealing with valid UTF strings (and by default it checks this at the
+start of processing unless the PCRE_NO_UTF8_CHECK or PCRE_NO_UTF16_CHECK option
+is used).
+.P
+PCRE does not allow \eC to appear in lookbehind assertions
+.\" HTML <a href="#lookbehind">
+.\" </a>
+(described below)
+.\"
+in a UTF mode, because this would make it impossible to calculate the length of
+the lookbehind.
+.P
+In general, the \eC escape sequence is best avoided. However, one
+way of using it that avoids the problem of malformed UTF characters is to use a
+lookahead to check the length of the next character, as in this pattern, which
+could be used with a UTF-8 string (ignore white space and line breaks):
+.sp
+  (?| (?=[\ex00-\ex7f])(\eC) |
+      (?=[\ex80-\ex{7ff}])(\eC)(\eC) |
+      (?=[\ex{800}-\ex{ffff}])(\eC)(\eC)(\eC) |
+      (?=[\ex{10000}-\ex{1fffff}])(\eC)(\eC)(\eC)(\eC))
+.sp
+A group that starts with (?| resets the capturing parentheses numbers in each
+alternative (see
+.\" HTML <a href="#dupsubpatternnumber">
+.\" </a>
+"Duplicate Subpattern Numbers"
+.\"
+below). The assertions at the start of each branch check the next UTF-8
+character for values whose encoding uses 1, 2, 3, or 4 bytes, respectively. The
+character's individual bytes are then captured by the appropriate number of
+groups.
+.
+.
+.\" HTML <a name="characterclass"></a>
+.SH "SQUARE BRACKETS AND CHARACTER CLASSES"
+.rs
+.sp
+An opening square bracket introduces a character class, terminated by a closing
+square bracket. A closing square bracket on its own is not special by default.
+However, if the PCRE_JAVASCRIPT_COMPAT option is set, a lone closing square
+bracket causes a compile-time error. If a closing square bracket is required as
+a member of the class, it should be the first data character in the class
+(after an initial circumflex, if present) or escaped with a backslash.
+.P
+A character class matches a single character in the subject. In a UTF mode, the
+character may be more than one data unit long. A matched character must be in
+the set of characters defined by the class, unless the first character in the
+class definition is a circumflex, in which case the subject character must not
+be in the set defined by the class. If a circumflex is actually required as a
+member of the class, ensure it is not the first character, or escape it with a
+backslash.
+.P
+For example, the character class [aeiou] matches any lower case vowel, while
+[^aeiou] matches any character that is not a lower case vowel. Note that a
+circumflex is just a convenient notation for specifying the characters that
+are in the class by enumerating those that are not. A class that starts with a
+circumflex is not an assertion; it still consumes a character from the subject
+string, and therefore it fails if the current pointer is at the end of the
+string.
+.P
+In UTF-8 (UTF-16) mode, characters with values greater than 255 (0xffff) can be
+included in a class as a literal string of data units, or by using the \ex{
+escaping mechanism.
+.P
+When caseless matching is set, any letters in a class represent both their
+upper case and lower case versions, so for example, a caseless [aeiou] matches
+"A" as well as "a", and a caseless [^aeiou] does not match "A", whereas a
+caseful version would. In a UTF mode, PCRE always understands the concept of
+case for characters whose values are less than 128, so caseless matching is
+always possible. For characters with higher values, the concept of case is
+supported if PCRE is compiled with Unicode property support, but not otherwise.
+If you want to use caseless matching in a UTF mode for characters 128 and
+above, you must ensure that PCRE is compiled with Unicode property support as
+well as with UTF support.
+.P
+Characters that might indicate line breaks are never treated in any special way
+when matching character classes, whatever line-ending sequence is in use, and
+whatever setting of the PCRE_DOTALL and PCRE_MULTILINE options is used. A class
+such as [^a] always matches one of these characters.
+.P
+The minus (hyphen) character can be used to specify a range of characters in a
+character class. For example, [d-m] matches any letter between d and m,
+inclusive. If a minus character is required in a class, it must be escaped with
+a backslash or appear in a position where it cannot be interpreted as
+indicating a range, typically as the first or last character in the class.
+.P
+It is not possible to have the literal character "]" as the end character of a
+range. A pattern such as [W-]46] is interpreted as a class of two characters
+("W" and "-") followed by a literal string "46]", so it would match "W46]" or
+"-46]". However, if the "]" is escaped with a backslash it is interpreted as
+the end of range, so [W-\e]46] is interpreted as a class containing a range
+followed by two other characters. The octal or hexadecimal representation of
+"]" can also be used to end a range.
+.P
+Ranges operate in the collating sequence of character values. They can also be
+used for characters specified numerically, for example [\e000-\e037]. Ranges
+can include any characters that are valid for the current mode.
+.P
+If a range that includes letters is used when caseless matching is set, it
+matches the letters in either case. For example, [W-c] is equivalent to
+[][\e\e^_`wxyzabc], matched caselessly, and in a non-UTF mode, if character
+tables for a French locale are in use, [\exc8-\excb] matches accented E
+characters in both cases. In UTF modes, PCRE supports the concept of case for
+characters with values greater than 128 only when it is compiled with Unicode
+property support.
+.P
+The character escape sequences \ed, \eD, \eh, \eH, \ep, \eP, \es, \eS, \ev,
+\eV, \ew, and \eW may appear in a character class, and add the characters that
+they match to the class. For example, [\edABCDEF] matches any hexadecimal
+digit. In UTF modes, the PCRE_UCP option affects the meanings of \ed, \es, \ew
+and their upper case partners, just as it does when they appear outside a
+character class, as described in the section entitled
+.\" HTML <a href="#genericchartypes">
+.\" </a>
+"Generic character types"
+.\"
+above. The escape sequence \eb has a different meaning inside a character
+class; it matches the backspace character. The sequences \eB, \eN, \eR, and \eX
+are not special inside a character class. Like any other unrecognized escape
+sequences, they are treated as the literal characters "B", "N", "R", and "X" by
+default, but cause an error if the PCRE_EXTRA option is set.
+.P
+A circumflex can conveniently be used with the upper case character types to
+specify a more restricted set of characters than the matching lower case type.
+For example, the class [^\eW_] matches any letter or digit, but not underscore,
+whereas [\ew] includes underscore. A positive character class should be read as
+"something OR something OR ..." and a negative class as "NOT something AND NOT
+something AND NOT ...".
+.P
+The only metacharacters that are recognized in character classes are backslash,
+hyphen (only where it can be interpreted as specifying a range), circumflex
+(only at the start), opening square bracket (only when it can be interpreted as
+introducing a POSIX class name - see the next section), and the terminating
+closing square bracket. However, escaping other non-alphanumeric characters
+does no harm.
+.
+.
+.SH "POSIX CHARACTER CLASSES"
+.rs
+.sp
+Perl supports the POSIX notation for character classes. This uses names
+enclosed by [: and :] within the enclosing square brackets. PCRE also supports
+this notation. For example,
+.sp
+  [01[:alpha:]%]
+.sp
+matches "0", "1", any alphabetic character, or "%". The supported class names
+are:
+.sp
+  alnum    letters and digits
+  alpha    letters
+  ascii    character codes 0 - 127
+  blank    space or tab only
+  cntrl    control characters
+  digit    decimal digits (same as \ed)
+  graph    printing characters, excluding space
+  lower    lower case letters
+  print    printing characters, including space
+  punct    printing characters, excluding letters and digits and space
+  space    white space (not quite the same as \es)
+  upper    upper case letters
+  word     "word" characters (same as \ew)
+  xdigit   hexadecimal digits
+.sp
+The "space" characters are HT (9), LF (10), VT (11), FF (12), CR (13), and
+space (32). Notice that this list includes the VT character (code 11). This
+makes "space" different to \es, which does not include VT (for Perl
+compatibility).
+.P
+The name "word" is a Perl extension, and "blank" is a GNU extension from Perl
+5.8. Another Perl extension is negation, which is indicated by a ^ character
+after the colon. For example,
+.sp
+  [12[:^digit:]]
+.sp
+matches "1", "2", or any non-digit. PCRE (and Perl) also recognize the POSIX
+syntax [.ch.] and [=ch=] where "ch" is a "collating element", but these are not
+supported, and an error is given if they are encountered.
+.P
+By default, in UTF modes, characters with values greater than 128 do not match
+any of the POSIX character classes. However, if the PCRE_UCP option is passed
+to \fBpcre_compile()\fP, some of the classes are changed so that Unicode
+character properties are used. This is achieved by replacing the POSIX classes
+by other sequences, as follows:
+.sp
+  [:alnum:]  becomes  \ep{Xan}
+  [:alpha:]  becomes  \ep{L}
+  [:blank:]  becomes  \eh
+  [:digit:]  becomes  \ep{Nd}
+  [:lower:]  becomes  \ep{Ll}
+  [:space:]  becomes  \ep{Xps}
+  [:upper:]  becomes  \ep{Lu}
+  [:word:]   becomes  \ep{Xwd}
+.sp
+Negated versions, such as [:^alpha:] use \eP instead of \ep. The other POSIX
+classes are unchanged, and match only characters with code points less than
+128.
+.
+.
+.SH "VERTICAL BAR"
+.rs
+.sp
+Vertical bar characters are used to separate alternative patterns. For example,
+the pattern
+.sp
+  gilbert|sullivan
+.sp
+matches either "gilbert" or "sullivan". Any number of alternatives may appear,
+and an empty alternative is permitted (matching the empty string). The matching
+process tries each alternative in turn, from left to right, and the first one
+that succeeds is used. If the alternatives are within a subpattern
+.\" HTML <a href="#subpattern">
+.\" </a>
+(defined below),
+.\"
+"succeeds" means matching the rest of the main pattern as well as the
+alternative in the subpattern.
+.
+.
+.SH "INTERNAL OPTION SETTING"
+.rs
+.sp
+The settings of the PCRE_CASELESS, PCRE_MULTILINE, PCRE_DOTALL, and
+PCRE_EXTENDED options (which are Perl-compatible) can be changed from within
+the pattern by a sequence of Perl option letters enclosed between "(?" and ")".
+The option letters are
+.sp
+  i  for PCRE_CASELESS
+  m  for PCRE_MULTILINE
+  s  for PCRE_DOTALL
+  x  for PCRE_EXTENDED
+.sp
+For example, (?im) sets caseless, multiline matching. It is also possible to
+unset these options by preceding the letter with a hyphen, and a combined
+setting and unsetting such as (?im-sx), which sets PCRE_CASELESS and
+PCRE_MULTILINE while unsetting PCRE_DOTALL and PCRE_EXTENDED, is also
+permitted. If a letter appears both before and after the hyphen, the option is
+unset.
+.P
+The PCRE-specific options PCRE_DUPNAMES, PCRE_UNGREEDY, and PCRE_EXTRA can be
+changed in the same way as the Perl-compatible options by using the characters
+J, U and X respectively.
+.P
+When one of these option changes occurs at top level (that is, not inside
+subpattern parentheses), the change applies to the remainder of the pattern
+that follows. If the change is placed right at the start of a pattern, PCRE
+extracts it into the global options (and it will therefore show up in data
+extracted by the \fBpcre_fullinfo()\fP function).
+.P
+An option change within a subpattern (see below for a description of
+subpatterns) affects only that part of the subpattern that follows it, so
+.sp
+  (a(?i)b)c
+.sp
+matches abc and aBc and no other strings (assuming PCRE_CASELESS is not used).
+By this means, options can be made to have different settings in different
+parts of the pattern. Any changes made in one alternative do carry on
+into subsequent branches within the same subpattern. For example,
+.sp
+  (a(?i)b|c)
+.sp
+matches "ab", "aB", "c", and "C", even though when matching "C" the first
+branch is abandoned before the option setting. This is because the effects of
+option settings happen at compile time. There would be some very weird
+behaviour otherwise.
+.P
+\fBNote:\fP There are other PCRE-specific options that can be set by the
+application when the compiling or matching functions are called. In some cases
+the pattern can contain special leading sequences such as (*CRLF) to override
+what the application has set or what has been defaulted. Details are given in
+the section entitled
+.\" HTML <a href="#newlineseq">
+.\" </a>
+"Newline sequences"
+.\"
+above. There are also the (*UTF8), (*UTF16), and (*UCP) leading sequences that
+can be used to set UTF and Unicode property modes; they are equivalent to
+setting the PCRE_UTF8, PCRE_UTF16, and the PCRE_UCP options, respectively.
+.
+.
+.\" HTML <a name="subpattern"></a>
+.SH SUBPATTERNS
+.rs
+.sp
+Subpatterns are delimited by parentheses (round brackets), which can be nested.
+Turning part of a pattern into a subpattern does two things:
+.sp
+1. It localizes a set of alternatives. For example, the pattern
+.sp
+  cat(aract|erpillar|)
+.sp
+matches "cataract", "caterpillar", or "cat". Without the parentheses, it would
+match "cataract", "erpillar" or an empty string.
+.sp
+2. It sets up the subpattern as a capturing subpattern. This means that, when
+the whole pattern matches, that portion of the subject string that matched the
+subpattern is passed back to the caller via the \fIovector\fP argument of the
+matching function. (This applies only to the traditional matching functions;
+the DFA matching functions do not support capturing.)
+.P
+Opening parentheses are counted from left to right (starting from 1) to obtain
+numbers for the capturing subpatterns. For example, if the string "the red
+king" is matched against the pattern
+.sp
+  the ((red|white) (king|queen))
+.sp
+the captured substrings are "red king", "red", and "king", and are numbered 1,
+2, and 3, respectively.
+.P
+The fact that plain parentheses fulfil two functions is not always helpful.
+There are often times when a grouping subpattern is required without a
+capturing requirement. If an opening parenthesis is followed by a question mark
+and a colon, the subpattern does not do any capturing, and is not counted when
+computing the number of any subsequent capturing subpatterns. For example, if
+the string "the white queen" is matched against the pattern
+.sp
+  the ((?:red|white) (king|queen))
+.sp
+the captured substrings are "white queen" and "queen", and are numbered 1 and
+2. The maximum number of capturing subpatterns is 65535.
+.P
+As a convenient shorthand, if any option settings are required at the start of
+a non-capturing subpattern, the option letters may appear between the "?" and
+the ":". Thus the two patterns
+.sp
+  (?i:saturday|sunday)
+  (?:(?i)saturday|sunday)
+.sp
+match exactly the same set of strings. Because alternative branches are tried
+from left to right, and options are not reset until the end of the subpattern
+is reached, an option setting in one branch does affect subsequent branches, so
+the above patterns match "SUNDAY" as well as "Saturday".
+.
+.
+.\" HTML <a name="dupsubpatternnumber"></a>
+.SH "DUPLICATE SUBPATTERN NUMBERS"
+.rs
+.sp
+Perl 5.10 introduced a feature whereby each alternative in a subpattern uses
+the same numbers for its capturing parentheses. Such a subpattern starts with
+(?| and is itself a non-capturing subpattern. For example, consider this
+pattern:
+.sp
+  (?|(Sat)ur|(Sun))day
+.sp
+Because the two alternatives are inside a (?| group, both sets of capturing
+parentheses are numbered one. Thus, when the pattern matches, you can look
+at captured substring number one, whichever alternative matched. This construct
+is useful when you want to capture part, but not all, of one of a number of
+alternatives. Inside a (?| group, parentheses are numbered as usual, but the
+number is reset at the start of each branch. The numbers of any capturing
+parentheses that follow the subpattern start after the highest number used in
+any branch. The following example is taken from the Perl documentation. The
+numbers underneath show in which buffer the captured content will be stored.
+.sp
+  # before  ---------------branch-reset----------- after
+  / ( a )  (?| x ( y ) z | (p (q) r) | (t) u (v) ) ( z ) /x
+  # 1            2         2  3        2     3     4
+.sp
+A back reference to a numbered subpattern uses the most recent value that is
+set for that number by any subpattern. The following pattern matches "abcabc"
+or "defdef":
+.sp
+  /(?|(abc)|(def))\e1/
+.sp
+In contrast, a subroutine call to a numbered subpattern always refers to the
+first one in the pattern with the given number. The following pattern matches
+"abcabc" or "defabc":
+.sp
+  /(?|(abc)|(def))(?1)/
+.sp
+If a
+.\" HTML <a href="#conditions">
+.\" </a>
+condition test
+.\"
+for a subpattern's having matched refers to a non-unique number, the test is
+true if any of the subpatterns of that number have matched.
+.P
+An alternative approach to using this "branch reset" feature is to use
+duplicate named subpatterns, as described in the next section.
+.
+.
+.SH "NAMED SUBPATTERNS"
+.rs
+.sp
+Identifying capturing parentheses by number is simple, but it can be very hard
+to keep track of the numbers in complicated regular expressions. Furthermore,
+if an expression is modified, the numbers may change. To help with this
+difficulty, PCRE supports the naming of subpatterns. This feature was not
+added to Perl until release 5.10. Python had the feature earlier, and PCRE
+introduced it at release 4.0, using the Python syntax. PCRE now supports both
+the Perl and the Python syntax. Perl allows identically numbered subpatterns to
+have different names, but PCRE does not.
+.P
+In PCRE, a subpattern can be named in one of three ways: (?<name>...) or
+(?'name'...) as in Perl, or (?P<name>...) as in Python. References to capturing
+parentheses from other parts of the pattern, such as
+.\" HTML <a href="#backreferences">
+.\" </a>
+back references,
+.\"
+.\" HTML <a href="#recursion">
+.\" </a>
+recursion,
+.\"
+and
+.\" HTML <a href="#conditions">
+.\" </a>
+conditions,
+.\"
+can be made by name as well as by number.
+.P
+Names consist of up to 32 alphanumeric characters and underscores. Named
+capturing parentheses are still allocated numbers as well as names, exactly as
+if the names were not present. The PCRE API provides function calls for
+extracting the name-to-number translation table from a compiled pattern. There
+is also a convenience function for extracting a captured substring by name.
+.P
+By default, a name must be unique within a pattern, but it is possible to relax
+this constraint by setting the PCRE_DUPNAMES option at compile time. (Duplicate
+names are also always permitted for subpatterns with the same number, set up as
+described in the previous section.) Duplicate names can be useful for patterns
+where only one instance of the named parentheses can match. Suppose you want to
+match the name of a weekday, either as a 3-letter abbreviation or as the full
+name, and in both cases you want to extract the abbreviation. This pattern
+(ignoring the line breaks) does the job:
+.sp
+  (?<DN>Mon|Fri|Sun)(?:day)?|
+  (?<DN>Tue)(?:sday)?|
+  (?<DN>Wed)(?:nesday)?|
+  (?<DN>Thu)(?:rsday)?|
+  (?<DN>Sat)(?:urday)?
+.sp
+There are five capturing substrings, but only one is ever set after a match.
+(An alternative way of solving this problem is to use a "branch reset"
+subpattern, as described in the previous section.)
+.P
+The convenience function for extracting the data by name returns the substring
+for the first (and in this example, the only) subpattern of that name that
+matched. This saves searching to find which numbered subpattern it was.
+.P
+If you make a back reference to a non-unique named subpattern from elsewhere in
+the pattern, the one that corresponds to the first occurrence of the name is
+used. In the absence of duplicate numbers (see the previous section) this is
+the one with the lowest number. If you use a named reference in a condition
+test (see the
+.\"
+.\" HTML <a href="#conditions">
+.\" </a>
+section about conditions
+.\"
+below), either to check whether a subpattern has matched, or to check for
+recursion, all subpatterns with the same name are tested. If the condition is
+true for any one of them, the overall condition is true. This is the same
+behaviour as testing by number. For further details of the interfaces for
+handling named subpatterns, see the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation.
+.P
+\fBWarning:\fP You cannot use different names to distinguish between two
+subpatterns with the same number because PCRE uses only the numbers when
+matching. For this reason, an error is given at compile time if different names
+are given to subpatterns with the same number. However, you can give the same
+name to subpatterns with the same number, even when PCRE_DUPNAMES is not set.
+.
+.
+.SH REPETITION
+.rs
+.sp
+Repetition is specified by quantifiers, which can follow any of the following
+items:
+.sp
+  a literal data character
+  the dot metacharacter
+  the \eC escape sequence
+  the \eX escape sequence
+  the \eR escape sequence
+  an escape such as \ed or \epL that matches a single character
+  a character class
+  a back reference (see next section)
+  a parenthesized subpattern (including assertions)
+  a subroutine call to a subpattern (recursive or otherwise)
+.sp
+The general repetition quantifier specifies a minimum and maximum number of
+permitted matches, by giving the two numbers in curly brackets (braces),
+separated by a comma. The numbers must be less than 65536, and the first must
+be less than or equal to the second. For example:
+.sp
+  z{2,4}
+.sp
+matches "zz", "zzz", or "zzzz". A closing brace on its own is not a special
+character. If the second number is omitted, but the comma is present, there is
+no upper limit; if the second number and the comma are both omitted, the
+quantifier specifies an exact number of required matches. Thus
+.sp
+  [aeiou]{3,}
+.sp
+matches at least 3 successive vowels, but may match many more, while
+.sp
+  \ed{8}
+.sp
+matches exactly 8 digits. An opening curly bracket that appears in a position
+where a quantifier is not allowed, or one that does not match the syntax of a
+quantifier, is taken as a literal character. For example, {,6} is not a
+quantifier, but a literal string of four characters.
+.P
+In UTF modes, quantifiers apply to characters rather than to individual data
+units. Thus, for example, \ex{100}{2} matches two characters, each of
+which is represented by a two-byte sequence in a UTF-8 string. Similarly,
+\eX{3} matches three Unicode extended sequences, each of which may be several
+data units long (and they may be of different lengths).
+.P
+The quantifier {0} is permitted, causing the expression to behave as if the
+previous item and the quantifier were not present. This may be useful for
+subpatterns that are referenced as
+.\" HTML <a href="#subpatternsassubroutines">
+.\" </a>
+subroutines
+.\"
+from elsewhere in the pattern (but see also the section entitled
+.\" HTML <a href="#subdefine">
+.\" </a>
+"Defining subpatterns for use by reference only"
+.\"
+below). Items other than subpatterns that have a {0} quantifier are omitted
+from the compiled pattern.
+.P
+For convenience, the three most common quantifiers have single-character
+abbreviations:
+.sp
+  *    is equivalent to {0,}
+  +    is equivalent to {1,}
+  ?    is equivalent to {0,1}
+.sp
+It is possible to construct infinite loops by following a subpattern that can
+match no characters with a quantifier that has no upper limit, for example:
+.sp
+  (a?)*
+.sp
+Earlier versions of Perl and PCRE used to give an error at compile time for
+such patterns. However, because there are cases where this can be useful, such
+patterns are now accepted, but if any repetition of the subpattern does in fact
+match no characters, the loop is forcibly broken.
+.P
+By default, the quantifiers are "greedy", that is, they match as much as
+possible (up to the maximum number of permitted times), without causing the
+rest of the pattern to fail. The classic example of where this gives problems
+is in trying to match comments in C programs. These appear between /* and */
+and within the comment, individual * and / characters may appear. An attempt to
+match C comments by applying the pattern
+.sp
+  /\e*.*\e*/
+.sp
+to the string
+.sp
+  /* first comment */  not comment  /* second comment */
+.sp
+fails, because it matches the entire string owing to the greediness of the .*
+item.
+.P
+However, if a quantifier is followed by a question mark, it ceases to be
+greedy, and instead matches the minimum number of times possible, so the
+pattern
+.sp
+  /\e*.*?\e*/
+.sp
+does the right thing with the C comments. The meaning of the various
+quantifiers is not otherwise changed, just the preferred number of matches.
+Do not confuse this use of question mark with its use as a quantifier in its
+own right. Because it has two uses, it can sometimes appear doubled, as in
+.sp
+  \ed??\ed
+.sp
+which matches one digit by preference, but can match two if that is the only
+way the rest of the pattern matches.
+.P
+If the PCRE_UNGREEDY option is set (an option that is not available in Perl),
+the quantifiers are not greedy by default, but individual ones can be made
+greedy by following them with a question mark. In other words, it inverts the
+default behaviour.
+.P
+When a parenthesized subpattern is quantified with a minimum repeat count that
+is greater than 1 or with a limited maximum, more memory is required for the
+compiled pattern, in proportion to the size of the minimum or maximum.
+.P
+If a pattern starts with .* or .{0,} and the PCRE_DOTALL option (equivalent
+to Perl's /s) is set, thus allowing the dot to match newlines, the pattern is
+implicitly anchored, because whatever follows will be tried against every
+character position in the subject string, so there is no point in retrying the
+overall match at any position after the first. PCRE normally treats such a
+pattern as though it were preceded by \eA.
+.P
+In cases where it is known that the subject string contains no newlines, it is
+worth setting PCRE_DOTALL in order to obtain this optimization, or
+alternatively using ^ to indicate anchoring explicitly.
+.P
+However, there is one situation where the optimization cannot be used. When .*
+is inside capturing parentheses that are the subject of a back reference
+elsewhere in the pattern, a match at the start may fail where a later one
+succeeds. Consider, for example:
+.sp
+  (.*)abc\e1
+.sp
+If the subject is "xyz123abc123" the match point is the fourth character. For
+this reason, such a pattern is not implicitly anchored.
+.P
+When a capturing subpattern is repeated, the value captured is the substring
+that matched the final iteration. For example, after
+.sp
+  (tweedle[dume]{3}\es*)+
+.sp
+has matched "tweedledum tweedledee" the value of the captured substring is
+"tweedledee". However, if there are nested capturing subpatterns, the
+corresponding captured values may have been set in previous iterations. For
+example, after
+.sp
+  /(a|(b))+/
+.sp
+matches "aba" the value of the second captured substring is "b".
+.
+.
+.\" HTML <a name="atomicgroup"></a>
+.SH "ATOMIC GROUPING AND POSSESSIVE QUANTIFIERS"
+.rs
+.sp
+With both maximizing ("greedy") and minimizing ("ungreedy" or "lazy")
+repetition, failure of what follows normally causes the repeated item to be
+re-evaluated to see if a different number of repeats allows the rest of the
+pattern to match. Sometimes it is useful to prevent this, either to change the
+nature of the match, or to cause it fail earlier than it otherwise might, when
+the author of the pattern knows there is no point in carrying on.
+.P
+Consider, for example, the pattern \ed+foo when applied to the subject line
+.sp
+  123456bar
+.sp
+After matching all 6 digits and then failing to match "foo", the normal
+action of the matcher is to try again with only 5 digits matching the \ed+
+item, and then with 4, and so on, before ultimately failing. "Atomic grouping"
+(a term taken from Jeffrey Friedl's book) provides the means for specifying
+that once a subpattern has matched, it is not to be re-evaluated in this way.
+.P
+If we use atomic grouping for the previous example, the matcher gives up
+immediately on failing to match "foo" the first time. The notation is a kind of
+special parenthesis, starting with (?> as in this example:
+.sp
+  (?>\ed+)foo
+.sp
+This kind of parenthesis "locks up" the  part of the pattern it contains once
+it has matched, and a failure further into the pattern is prevented from
+backtracking into it. Backtracking past it to previous items, however, works as
+normal.
+.P
+An alternative description is that a subpattern of this type matches the string
+of characters that an identical standalone pattern would match, if anchored at
+the current point in the subject string.
+.P
+Atomic grouping subpatterns are not capturing subpatterns. Simple cases such as
+the above example can be thought of as a maximizing repeat that must swallow
+everything it can. So, while both \ed+ and \ed+? are prepared to adjust the
+number of digits they match in order to make the rest of the pattern match,
+(?>\ed+) can only match an entire sequence of digits.
+.P
+Atomic groups in general can of course contain arbitrarily complicated
+subpatterns, and can be nested. However, when the subpattern for an atomic
+group is just a single repeated item, as in the example above, a simpler
+notation, called a "possessive quantifier" can be used. This consists of an
+additional + character following a quantifier. Using this notation, the
+previous example can be rewritten as
+.sp
+  \ed++foo
+.sp
+Note that a possessive quantifier can be used with an entire group, for
+example:
+.sp
+  (abc|xyz){2,3}+
+.sp
+Possessive quantifiers are always greedy; the setting of the PCRE_UNGREEDY
+option is ignored. They are a convenient notation for the simpler forms of
+atomic group. However, there is no difference in the meaning of a possessive
+quantifier and the equivalent atomic group, though there may be a performance
+difference; possessive quantifiers should be slightly faster.
+.P
+The possessive quantifier syntax is an extension to the Perl 5.8 syntax.
+Jeffrey Friedl originated the idea (and the name) in the first edition of his
+book. Mike McCloskey liked it, so implemented it when he built Sun's Java
+package, and PCRE copied it from there. It ultimately found its way into Perl
+at release 5.10.
+.P
+PCRE has an optimization that automatically "possessifies" certain simple
+pattern constructs. For example, the sequence A+B is treated as A++B because
+there is no point in backtracking into a sequence of A's when B must follow.
+.P
+When a pattern contains an unlimited repeat inside a subpattern that can itself
+be repeated an unlimited number of times, the use of an atomic group is the
+only way to avoid some failing matches taking a very long time indeed. The
+pattern
+.sp
+  (\eD+|<\ed+>)*[!?]
+.sp
+matches an unlimited number of substrings that either consist of non-digits, or
+digits enclosed in <>, followed by either ! or ?. When it matches, it runs
+quickly. However, if it is applied to
+.sp
+  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+.sp
+it takes a long time before reporting failure. This is because the string can
+be divided between the internal \eD+ repeat and the external * repeat in a
+large number of ways, and all have to be tried. (The example uses [!?] rather
+than a single character at the end, because both PCRE and Perl have an
+optimization that allows for fast failure when a single character is used. They
+remember the last single character that is required for a match, and fail early
+if it is not present in the string.) If the pattern is changed so that it uses
+an atomic group, like this:
+.sp
+  ((?>\eD+)|<\ed+>)*[!?]
+.sp
+sequences of non-digits cannot be broken, and failure happens quickly.
+.
+.
+.\" HTML <a name="backreferences"></a>
+.SH "BACK REFERENCES"
+.rs
+.sp
+Outside a character class, a backslash followed by a digit greater than 0 (and
+possibly further digits) is a back reference to a capturing subpattern earlier
+(that is, to its left) in the pattern, provided there have been that many
+previous capturing left parentheses.
+.P
+However, if the decimal number following the backslash is less than 10, it is
+always taken as a back reference, and causes an error only if there are not
+that many capturing left parentheses in the entire pattern. In other words, the
+parentheses that are referenced need not be to the left of the reference for
+numbers less than 10. A "forward back reference" of this type can make sense
+when a repetition is involved and the subpattern to the right has participated
+in an earlier iteration.
+.P
+It is not possible to have a numerical "forward back reference" to a subpattern
+whose number is 10 or more using this syntax because a sequence such as \e50 is
+interpreted as a character defined in octal. See the subsection entitled
+"Non-printing characters"
+.\" HTML <a href="#digitsafterbackslash">
+.\" </a>
+above
+.\"
+for further details of the handling of digits following a backslash. There is
+no such problem when named parentheses are used. A back reference to any
+subpattern is possible using named parentheses (see below).
+.P
+Another way of avoiding the ambiguity inherent in the use of digits following a
+backslash is to use the \eg escape sequence. This escape must be followed by an
+unsigned number or a negative number, optionally enclosed in braces. These
+examples are all identical:
+.sp
+  (ring), \e1
+  (ring), \eg1
+  (ring), \eg{1}
+.sp
+An unsigned number specifies an absolute reference without the ambiguity that
+is present in the older syntax. It is also useful when literal digits follow
+the reference. A negative number is a relative reference. Consider this
+example:
+.sp
+  (abc(def)ghi)\eg{-1}
+.sp
+The sequence \eg{-1} is a reference to the most recently started capturing
+subpattern before \eg, that is, is it equivalent to \e2 in this example.
+Similarly, \eg{-2} would be equivalent to \e1. The use of relative references
+can be helpful in long patterns, and also in patterns that are created by
+joining together fragments that contain references within themselves.
+.P
+A back reference matches whatever actually matched the capturing subpattern in
+the current subject string, rather than anything matching the subpattern
+itself (see
+.\" HTML <a href="#subpatternsassubroutines">
+.\" </a>
+"Subpatterns as subroutines"
+.\"
+below for a way of doing that). So the pattern
+.sp
+  (sens|respons)e and \e1ibility
+.sp
+matches "sense and sensibility" and "response and responsibility", but not
+"sense and responsibility". If caseful matching is in force at the time of the
+back reference, the case of letters is relevant. For example,
+.sp
+  ((?i)rah)\es+\e1
+.sp
+matches "rah rah" and "RAH RAH", but not "RAH rah", even though the original
+capturing subpattern is matched caselessly.
+.P
+There are several different ways of writing back references to named
+subpatterns. The .NET syntax \ek{name} and the Perl syntax \ek<name> or
+\ek'name' are supported, as is the Python syntax (?P=name). Perl 5.10's unified
+back reference syntax, in which \eg can be used for both numeric and named
+references, is also supported. We could rewrite the above example in any of
+the following ways:
+.sp
+  (?<p1>(?i)rah)\es+\ek<p1>
+  (?'p1'(?i)rah)\es+\ek{p1}
+  (?P<p1>(?i)rah)\es+(?P=p1)
+  (?<p1>(?i)rah)\es+\eg{p1}
+.sp
+A subpattern that is referenced by name may appear in the pattern before or
+after the reference.
+.P
+There may be more than one back reference to the same subpattern. If a
+subpattern has not actually been used in a particular match, any back
+references to it always fail by default. For example, the pattern
+.sp
+  (a|(bc))\e2
+.sp
+always fails if it starts to match "a" rather than "bc". However, if the
+PCRE_JAVASCRIPT_COMPAT option is set at compile time, a back reference to an
+unset value matches an empty string.
+.P
+Because there may be many capturing parentheses in a pattern, all digits
+following a backslash are taken as part of a potential back reference number.
+If the pattern continues with a digit character, some delimiter must be used to
+terminate the back reference. If the PCRE_EXTENDED option is set, this can be
+white space. Otherwise, the \eg{ syntax or an empty comment (see
+.\" HTML <a href="#comments">
+.\" </a>
+"Comments"
+.\"
+below) can be used.
+.
+.SS "Recursive back references"
+.rs
+.sp
+A back reference that occurs inside the parentheses to which it refers fails
+when the subpattern is first used, so, for example, (a\e1) never matches.
+However, such references can be useful inside repeated subpatterns. For
+example, the pattern
+.sp
+  (a|b\e1)+
+.sp
+matches any number of "a"s and also "aba", "ababbaa" etc. At each iteration of
+the subpattern, the back reference matches the character string corresponding
+to the previous iteration. In order for this to work, the pattern must be such
+that the first iteration does not need to match the back reference. This can be
+done using alternation, as in the example above, or by a quantifier with a
+minimum of zero.
+.P
+Back references of this type cause the group that they reference to be treated
+as an
+.\" HTML <a href="#atomicgroup">
+.\" </a>
+atomic group.
+.\"
+Once the whole group has been matched, a subsequent matching failure cannot
+cause backtracking into the middle of the group.
+.
+.
+.\" HTML <a name="bigassertions"></a>
+.SH ASSERTIONS
+.rs
+.sp
+An assertion is a test on the characters following or preceding the current
+matching point that does not actually consume any characters. The simple
+assertions coded as \eb, \eB, \eA, \eG, \eZ, \ez, ^ and $ are described
+.\" HTML <a href="#smallassertions">
+.\" </a>
+above.
+.\"
+.P
+More complicated assertions are coded as subpatterns. There are two kinds:
+those that look ahead of the current position in the subject string, and those
+that look behind it. An assertion subpattern is matched in the normal way,
+except that it does not cause the current matching position to be changed.
+.P
+Assertion subpatterns are not capturing subpatterns. If such an assertion
+contains capturing subpatterns within it, these are counted for the purposes of
+numbering the capturing subpatterns in the whole pattern. However, substring
+capturing is carried out only for positive assertions, because it does not make
+sense for negative assertions.
+.P
+For compatibility with Perl, assertion subpatterns may be repeated; though
+it makes no sense to assert the same thing several times, the side effect of
+capturing parentheses may occasionally be useful. In practice, there only three
+cases:
+.sp
+(1) If the quantifier is {0}, the assertion is never obeyed during matching.
+However, it may contain internal capturing parenthesized groups that are called
+from elsewhere via the
+.\" HTML <a href="#subpatternsassubroutines">
+.\" </a>
+subroutine mechanism.
+.\"
+.sp
+(2) If quantifier is {0,n} where n is greater than zero, it is treated as if it
+were {0,1}. At run time, the rest of the pattern match is tried with and
+without the assertion, the order depending on the greediness of the quantifier.
+.sp
+(3) If the minimum repetition is greater than zero, the quantifier is ignored.
+The assertion is obeyed just once when encountered during matching.
+.
+.
+.SS "Lookahead assertions"
+.rs
+.sp
+Lookahead assertions start with (?= for positive assertions and (?! for
+negative assertions. For example,
+.sp
+  \ew+(?=;)
+.sp
+matches a word followed by a semicolon, but does not include the semicolon in
+the match, and
+.sp
+  foo(?!bar)
+.sp
+matches any occurrence of "foo" that is not followed by "bar". Note that the
+apparently similar pattern
+.sp
+  (?!foo)bar
+.sp
+does not find an occurrence of "bar" that is preceded by something other than
+"foo"; it finds any occurrence of "bar" whatsoever, because the assertion
+(?!foo) is always true when the next three characters are "bar". A
+lookbehind assertion is needed to achieve the other effect.
+.P
+If you want to force a matching failure at some point in a pattern, the most
+convenient way to do it is with (?!) because an empty string always matches, so
+an assertion that requires there not to be an empty string must always fail.
+The backtracking control verb (*FAIL) or (*F) is a synonym for (?!).
+.
+.
+.\" HTML <a name="lookbehind"></a>
+.SS "Lookbehind assertions"
+.rs
+.sp
+Lookbehind assertions start with (?<= for positive assertions and (?<! for
+negative assertions. For example,
+.sp
+  (?<!foo)bar
+.sp
+does find an occurrence of "bar" that is not preceded by "foo". The contents of
+a lookbehind assertion are restricted such that all the strings it matches must
+have a fixed length. However, if there are several top-level alternatives, they
+do not all have to have the same fixed length. Thus
+.sp
+  (?<=bullock|donkey)
+.sp
+is permitted, but
+.sp
+  (?<!dogs?|cats?)
+.sp
+causes an error at compile time. Branches that match different length strings
+are permitted only at the top level of a lookbehind assertion. This is an
+extension compared with Perl, which requires all branches to match the same
+length of string. An assertion such as
+.sp
+  (?<=ab(c|de))
+.sp
+is not permitted, because its single top-level branch can match two different
+lengths, but it is acceptable to PCRE if rewritten to use two top-level
+branches:
+.sp
+  (?<=abc|abde)
+.sp
+In some cases, the escape sequence \eK
+.\" HTML <a href="#resetmatchstart">
+.\" </a>
+(see above)
+.\"
+can be used instead of a lookbehind assertion to get round the fixed-length
+restriction.
+.P
+The implementation of lookbehind assertions is, for each alternative, to
+temporarily move the current position back by the fixed length and then try to
+match. If there are insufficient characters before the current position, the
+assertion fails.
+.P
+In a UTF mode, PCRE does not allow the \eC escape (which matches a single data
+unit even in a UTF mode) to appear in lookbehind assertions, because it makes
+it impossible to calculate the length of the lookbehind. The \eX and \eR
+escapes, which can match different numbers of data units, are also not
+permitted.
+.P
+.\" HTML <a href="#subpatternsassubroutines">
+.\" </a>
+"Subroutine"
+.\"
+calls (see below) such as (?2) or (?&X) are permitted in lookbehinds, as long
+as the subpattern matches a fixed-length string.
+.\" HTML <a href="#recursion">
+.\" </a>
+Recursion,
+.\"
+however, is not supported.
+.P
+Possessive quantifiers can be used in conjunction with lookbehind assertions to
+specify efficient matching of fixed-length strings at the end of subject
+strings. Consider a simple pattern such as
+.sp
+  abcd$
+.sp
+when applied to a long string that does not match. Because matching proceeds
+from left to right, PCRE will look for each "a" in the subject and then see if
+what follows matches the rest of the pattern. If the pattern is specified as
+.sp
+  ^.*abcd$
+.sp
+the initial .* matches the entire string at first, but when this fails (because
+there is no following "a"), it backtracks to match all but the last character,
+then all but the last two characters, and so on. Once again the search for "a"
+covers the entire string, from right to left, so we are no better off. However,
+if the pattern is written as
+.sp
+  ^.*+(?<=abcd)
+.sp
+there can be no backtracking for the .*+ item; it can match only the entire
+string. The subsequent lookbehind assertion does a single test on the last four
+characters. If it fails, the match fails immediately. For long strings, this
+approach makes a significant difference to the processing time.
+.
+.
+.SS "Using multiple assertions"
+.rs
+.sp
+Several assertions (of any sort) may occur in succession. For example,
+.sp
+  (?<=\ed{3})(?<!999)foo
+.sp
+matches "foo" preceded by three digits that are not "999". Notice that each of
+the assertions is applied independently at the same point in the subject
+string. First there is a check that the previous three characters are all
+digits, and then there is a check that the same three characters are not "999".
+This pattern does \fInot\fP match "foo" preceded by six characters, the first
+of which are digits and the last three of which are not "999". For example, it
+doesn't match "123abcfoo". A pattern to do that is
+.sp
+  (?<=\ed{3}...)(?<!999)foo
+.sp
+This time the first assertion looks at the preceding six characters, checking
+that the first three are digits, and then the second assertion checks that the
+preceding three characters are not "999".
+.P
+Assertions can be nested in any combination. For example,
+.sp
+  (?<=(?<!foo)bar)baz
+.sp
+matches an occurrence of "baz" that is preceded by "bar" which in turn is not
+preceded by "foo", while
+.sp
+  (?<=\ed{3}(?!999)...)foo
+.sp
+is another pattern that matches "foo" preceded by three digits and any three
+characters that are not "999".
+.
+.
+.\" HTML <a name="conditions"></a>
+.SH "CONDITIONAL SUBPATTERNS"
+.rs
+.sp
+It is possible to cause the matching process to obey a subpattern
+conditionally or to choose between two alternative subpatterns, depending on
+the result of an assertion, or whether a specific capturing subpattern has
+already been matched. The two possible forms of conditional subpattern are:
+.sp
+  (?(condition)yes-pattern)
+  (?(condition)yes-pattern|no-pattern)
+.sp
+If the condition is satisfied, the yes-pattern is used; otherwise the
+no-pattern (if present) is used. If there are more than two alternatives in the
+subpattern, a compile-time error occurs. Each of the two alternatives may
+itself contain nested subpatterns of any form, including conditional
+subpatterns; the restriction to two alternatives applies only at the level of
+the condition. This pattern fragment is an example where the alternatives are
+complex:
+.sp
+  (?(1) (A|B|C) | (D | (?(2)E|F) | E) )
+.sp
+.P
+There are four kinds of condition: references to subpatterns, references to
+recursion, a pseudo-condition called DEFINE, and assertions.
+.
+.SS "Checking for a used subpattern by number"
+.rs
+.sp
+If the text between the parentheses consists of a sequence of digits, the
+condition is true if a capturing subpattern of that number has previously
+matched. If there is more than one capturing subpattern with the same number
+(see the earlier
+.\"
+.\" HTML <a href="#recursion">
+.\" </a>
+section about duplicate subpattern numbers),
+.\"
+the condition is true if any of them have matched. An alternative notation is
+to precede the digits with a plus or minus sign. In this case, the subpattern
+number is relative rather than absolute. The most recently opened parentheses
+can be referenced by (?(-1), the next most recent by (?(-2), and so on. Inside
+loops it can also make sense to refer to subsequent groups. The next
+parentheses to be opened can be referenced as (?(+1), and so on. (The value
+zero in any of these forms is not used; it provokes a compile-time error.)
+.P
+Consider the following pattern, which contains non-significant white space to
+make it more readable (assume the PCRE_EXTENDED option) and to divide it into
+three parts for ease of discussion:
+.sp
+  ( \e( )?    [^()]+    (?(1) \e) )
+.sp
+The first part matches an optional opening parenthesis, and if that
+character is present, sets it as the first captured substring. The second part
+matches one or more characters that are not parentheses. The third part is a
+conditional subpattern that tests whether or not the first set of parentheses
+matched. If they did, that is, if subject started with an opening parenthesis,
+the condition is true, and so the yes-pattern is executed and a closing
+parenthesis is required. Otherwise, since no-pattern is not present, the
+subpattern matches nothing. In other words, this pattern matches a sequence of
+non-parentheses, optionally enclosed in parentheses.
+.P
+If you were embedding this pattern in a larger one, you could use a relative
+reference:
+.sp
+  ...other stuff... ( \e( )?    [^()]+    (?(-1) \e) ) ...
+.sp
+This makes the fragment independent of the parentheses in the larger pattern.
+.
+.SS "Checking for a used subpattern by name"
+.rs
+.sp
+Perl uses the syntax (?(<name>)...) or (?('name')...) to test for a used
+subpattern by name. For compatibility with earlier versions of PCRE, which had
+this facility before Perl, the syntax (?(name)...) is also recognized. However,
+there is a possible ambiguity with this syntax, because subpattern names may
+consist entirely of digits. PCRE looks first for a named subpattern; if it
+cannot find one and the name consists entirely of digits, PCRE looks for a
+subpattern of that number, which must be greater than zero. Using subpattern
+names that consist entirely of digits is not recommended.
+.P
+Rewriting the above example to use a named subpattern gives this:
+.sp
+  (?<OPEN> \e( )?    [^()]+    (?(<OPEN>) \e) )
+.sp
+If the name used in a condition of this kind is a duplicate, the test is
+applied to all subpatterns of the same name, and is true if any one of them has
+matched.
+.
+.SS "Checking for pattern recursion"
+.rs
+.sp
+If the condition is the string (R), and there is no subpattern with the name R,
+the condition is true if a recursive call to the whole pattern or any
+subpattern has been made. If digits or a name preceded by ampersand follow the
+letter R, for example:
+.sp
+  (?(R3)...) or (?(R&name)...)
+.sp
+the condition is true if the most recent recursion is into a subpattern whose
+number or name is given. This condition does not check the entire recursion
+stack. If the name used in a condition of this kind is a duplicate, the test is
+applied to all subpatterns of the same name, and is true if any one of them is
+the most recent recursion.
+.P
+At "top level", all these recursion test conditions are false.
+.\" HTML <a href="#recursion">
+.\" </a>
+The syntax for recursive patterns
+.\"
+is described below.
+.
+.\" HTML <a name="subdefine"></a>
+.SS "Defining subpatterns for use by reference only"
+.rs
+.sp
+If the condition is the string (DEFINE), and there is no subpattern with the
+name DEFINE, the condition is always false. In this case, there may be only one
+alternative in the subpattern. It is always skipped if control reaches this
+point in the pattern; the idea of DEFINE is that it can be used to define
+subroutines that can be referenced from elsewhere. (The use of
+.\" HTML <a href="#subpatternsassubroutines">
+.\" </a>
+subroutines
+.\"
+is described below.) For example, a pattern to match an IPv4 address such as
+"192.168.23.245" could be written like this (ignore white space and line
+breaks):
+.sp
+  (?(DEFINE) (?<byte> 2[0-4]\ed | 25[0-5] | 1\ed\ed | [1-9]?\ed) )
+  \eb (?&byte) (\e.(?&byte)){3} \eb
+.sp
+The first part of the pattern is a DEFINE group inside which a another group
+named "byte" is defined. This matches an individual component of an IPv4
+address (a number less than 256). When matching takes place, this part of the
+pattern is skipped because DEFINE acts like a false condition. The rest of the
+pattern uses references to the named group to match the four dot-separated
+components of an IPv4 address, insisting on a word boundary at each end.
+.
+.SS "Assertion conditions"
+.rs
+.sp
+If the condition is not in any of the above formats, it must be an assertion.
+This may be a positive or negative lookahead or lookbehind assertion. Consider
+this pattern, again containing non-significant white space, and with the two
+alternatives on the second line:
+.sp
+  (?(?=[^a-z]*[a-z])
+  \ed{2}-[a-z]{3}-\ed{2}  |  \ed{2}-\ed{2}-\ed{2} )
+.sp
+The condition is a positive lookahead assertion that matches an optional
+sequence of non-letters followed by a letter. In other words, it tests for the
+presence of at least one letter in the subject. If a letter is found, the
+subject is matched against the first alternative; otherwise it is matched
+against the second. This pattern matches strings in one of the two forms
+dd-aaa-dd or dd-dd-dd, where aaa are letters and dd are digits.
+.
+.
+.\" HTML <a name="comments"></a>
+.SH COMMENTS
+.rs
+.sp
+There are two ways of including comments in patterns that are processed by
+PCRE. In both cases, the start of the comment must not be in a character class,
+nor in the middle of any other sequence of related characters such as (?: or a
+subpattern name or number. The characters that make up a comment play no part
+in the pattern matching.
+.P
+The sequence (?# marks the start of a comment that continues up to the next
+closing parenthesis. Nested parentheses are not permitted. If the PCRE_EXTENDED
+option is set, an unescaped # character also introduces a comment, which in
+this case continues to immediately after the next newline character or
+character sequence in the pattern. Which characters are interpreted as newlines
+is controlled by the options passed to a compiling function or by a special
+sequence at the start of the pattern, as described in the section entitled
+.\" HTML <a href="#newlines">
+.\" </a>
+"Newline conventions"
+.\"
+above. Note that the end of this type of comment is a literal newline sequence
+in the pattern; escape sequences that happen to represent a newline do not
+count. For example, consider this pattern when PCRE_EXTENDED is set, and the
+default newline convention is in force:
+.sp
+  abc #comment \en still comment
+.sp
+On encountering the # character, \fBpcre_compile()\fP skips along, looking for
+a newline in the pattern. The sequence \en is still literal at this stage, so
+it does not terminate the comment. Only an actual character with the code value
+0x0a (the default newline) does so.
+.
+.
+.\" HTML <a name="recursion"></a>
+.SH "RECURSIVE PATTERNS"
+.rs
+.sp
+Consider the problem of matching a string in parentheses, allowing for
+unlimited nested parentheses. Without the use of recursion, the best that can
+be done is to use a pattern that matches up to some fixed depth of nesting. It
+is not possible to handle an arbitrary nesting depth.
+.P
+For some time, Perl has provided a facility that allows regular expressions to
+recurse (amongst other things). It does this by interpolating Perl code in the
+expression at run time, and the code can refer to the expression itself. A Perl
+pattern using code interpolation to solve the parentheses problem can be
+created like this:
+.sp
+  $re = qr{\e( (?: (?>[^()]+) | (?p{$re}) )* \e)}x;
+.sp
+The (?p{...}) item interpolates Perl code at run time, and in this case refers
+recursively to the pattern in which it appears.
+.P
+Obviously, PCRE cannot support the interpolation of Perl code. Instead, it
+supports special syntax for recursion of the entire pattern, and also for
+individual subpattern recursion. After its introduction in PCRE and Python,
+this kind of recursion was subsequently introduced into Perl at release 5.10.
+.P
+A special item that consists of (? followed by a number greater than zero and a
+closing parenthesis is a recursive subroutine call of the subpattern of the
+given number, provided that it occurs inside that subpattern. (If not, it is a
+.\" HTML <a href="#subpatternsassubroutines">
+.\" </a>
+non-recursive subroutine
+.\"
+call, which is described in the next section.) The special item (?R) or (?0) is
+a recursive call of the entire regular expression.
+.P
+This PCRE pattern solves the nested parentheses problem (assume the
+PCRE_EXTENDED option is set so that white space is ignored):
+.sp
+  \e( ( [^()]++ | (?R) )* \e)
+.sp
+First it matches an opening parenthesis. Then it matches any number of
+substrings which can either be a sequence of non-parentheses, or a recursive
+match of the pattern itself (that is, a correctly parenthesized substring).
+Finally there is a closing parenthesis. Note the use of a possessive quantifier
+to avoid backtracking into sequences of non-parentheses.
+.P
+If this were part of a larger pattern, you would not want to recurse the entire
+pattern, so instead you could use this:
+.sp
+  ( \e( ( [^()]++ | (?1) )* \e) )
+.sp
+We have put the pattern into parentheses, and caused the recursion to refer to
+them instead of the whole pattern.
+.P
+In a larger pattern, keeping track of parenthesis numbers can be tricky. This
+is made easier by the use of relative references. Instead of (?1) in the
+pattern above you can write (?-2) to refer to the second most recently opened
+parentheses preceding the recursion. In other words, a negative number counts
+capturing parentheses leftwards from the point at which it is encountered.
+.P
+It is also possible to refer to subsequently opened parentheses, by writing
+references such as (?+2). However, these cannot be recursive because the
+reference is not inside the parentheses that are referenced. They are always
+.\" HTML <a href="#subpatternsassubroutines">
+.\" </a>
+non-recursive subroutine
+.\"
+calls, as described in the next section.
+.P
+An alternative approach is to use named parentheses instead. The Perl syntax
+for this is (?&name); PCRE's earlier syntax (?P>name) is also supported. We
+could rewrite the above example as follows:
+.sp
+  (?<pn> \e( ( [^()]++ | (?&pn) )* \e) )
+.sp
+If there is more than one subpattern with the same name, the earliest one is
+used.
+.P
+This particular example pattern that we have been looking at contains nested
+unlimited repeats, and so the use of a possessive quantifier for matching
+strings of non-parentheses is important when applying the pattern to strings
+that do not match. For example, when this pattern is applied to
+.sp
+  (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()
+.sp
+it yields "no match" quickly. However, if a possessive quantifier is not used,
+the match runs for a very long time indeed because there are so many different
+ways the + and * repeats can carve up the subject, and all have to be tested
+before failure can be reported.
+.P
+At the end of a match, the values of capturing parentheses are those from
+the outermost level. If you want to obtain intermediate values, a callout
+function can be used (see below and the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation). If the pattern above is matched against
+.sp
+  (ab(cd)ef)
+.sp
+the value for the inner capturing parentheses (numbered 2) is "ef", which is
+the last value taken on at the top level. If a capturing subpattern is not
+matched at the top level, its final captured value is unset, even if it was
+(temporarily) set at a deeper level during the matching process.
+.P
+If there are more than 15 capturing parentheses in a pattern, PCRE has to
+obtain extra memory to store data during a recursion, which it does by using
+\fBpcre_malloc\fP, freeing it via \fBpcre_free\fP afterwards. If no memory can
+be obtained, the match fails with the PCRE_ERROR_NOMEMORY error.
+.P
+Do not confuse the (?R) item with the condition (R), which tests for recursion.
+Consider this pattern, which matches text in angle brackets, allowing for
+arbitrary nesting. Only digits are allowed in nested brackets (that is, when
+recursing), whereas any characters are permitted at the outer level.
+.sp
+  < (?: (?(R) \ed++  | [^<>]*+) | (?R)) * >
+.sp
+In this pattern, (?(R) is the start of a conditional subpattern, with two
+different alternatives for the recursive and non-recursive cases. The (?R) item
+is the actual recursive call.
+.
+.
+.\" HTML <a name="recursiondifference"></a>
+.SS "Differences in recursion processing between PCRE and Perl"
+.rs
+.sp
+Recursion processing in PCRE differs from Perl in two important ways. In PCRE
+(like Python, but unlike Perl), a recursive subpattern call is always treated
+as an atomic group. That is, once it has matched some of the subject string, it
+is never re-entered, even if it contains untried alternatives and there is a
+subsequent matching failure. This can be illustrated by the following pattern,
+which purports to match a palindromic string that contains an odd number of
+characters (for example, "a", "aba", "abcba", "abcdcba"):
+.sp
+  ^(.|(.)(?1)\e2)$
+.sp
+The idea is that it either matches a single character, or two identical
+characters surrounding a sub-palindrome. In Perl, this pattern works; in PCRE
+it does not if the pattern is longer than three characters. Consider the
+subject string "abcba":
+.P
+At the top level, the first character is matched, but as it is not at the end
+of the string, the first alternative fails; the second alternative is taken
+and the recursion kicks in. The recursive call to subpattern 1 successfully
+matches the next character ("b"). (Note that the beginning and end of line
+tests are not part of the recursion).
+.P
+Back at the top level, the next character ("c") is compared with what
+subpattern 2 matched, which was "a". This fails. Because the recursion is
+treated as an atomic group, there are now no backtracking points, and so the
+entire match fails. (Perl is able, at this point, to re-enter the recursion and
+try the second alternative.) However, if the pattern is written with the
+alternatives in the other order, things are different:
+.sp
+  ^((.)(?1)\e2|.)$
+.sp
+This time, the recursing alternative is tried first, and continues to recurse
+until it runs out of characters, at which point the recursion fails. But this
+time we do have another alternative to try at the higher level. That is the big
+difference: in the previous case the remaining alternative is at a deeper
+recursion level, which PCRE cannot use.
+.P
+To change the pattern so that it matches all palindromic strings, not just
+those with an odd number of characters, it is tempting to change the pattern to
+this:
+.sp
+  ^((.)(?1)\e2|.?)$
+.sp
+Again, this works in Perl, but not in PCRE, and for the same reason. When a
+deeper recursion has matched a single character, it cannot be entered again in
+order to match an empty string. The solution is to separate the two cases, and
+write out the odd and even cases as alternatives at the higher level:
+.sp
+  ^(?:((.)(?1)\e2|)|((.)(?3)\e4|.))
+.sp
+If you want to match typical palindromic phrases, the pattern has to ignore all
+non-word characters, which can be done like this:
+.sp
+  ^\eW*+(?:((.)\eW*+(?1)\eW*+\e2|)|((.)\eW*+(?3)\eW*+\e4|\eW*+.\eW*+))\eW*+$
+.sp
+If run with the PCRE_CASELESS option, this pattern matches phrases such as "A
+man, a plan, a canal: Panama!" and it works well in both PCRE and Perl. Note
+the use of the possessive quantifier *+ to avoid backtracking into sequences of
+non-word characters. Without this, PCRE takes a great deal longer (ten times or
+more) to match typical phrases, and Perl takes so long that you think it has
+gone into a loop.
+.P
+\fBWARNING\fP: The palindrome-matching patterns above work only if the subject
+string does not start with a palindrome that is shorter than the entire string.
+For example, although "abcba" is correctly matched, if the subject is "ababa",
+PCRE finds the palindrome "aba" at the start, then fails at top level because
+the end of the string does not follow. Once again, it cannot jump back into the
+recursion to try other alternatives, so the entire match fails.
+.P
+The second way in which PCRE and Perl differ in their recursion processing is
+in the handling of captured values. In Perl, when a subpattern is called
+recursively or as a subpattern (see the next section), it has no access to any
+values that were captured outside the recursion, whereas in PCRE these values
+can be referenced. Consider this pattern:
+.sp
+  ^(.)(\e1|a(?2))
+.sp
+In PCRE, this pattern matches "bab". The first capturing parentheses match "b",
+then in the second group, when the back reference \e1 fails to match "b", the
+second alternative matches "a" and then recurses. In the recursion, \e1 does
+now match "b" and so the whole match succeeds. In Perl, the pattern fails to
+match because inside the recursive call \e1 cannot access the externally set
+value.
+.
+.
+.\" HTML <a name="subpatternsassubroutines"></a>
+.SH "SUBPATTERNS AS SUBROUTINES"
+.rs
+.sp
+If the syntax for a recursive subpattern call (either by number or by
+name) is used outside the parentheses to which it refers, it operates like a
+subroutine in a programming language. The called subpattern may be defined
+before or after the reference. A numbered reference can be absolute or
+relative, as in these examples:
+.sp
+  (...(absolute)...)...(?2)...
+  (...(relative)...)...(?-1)...
+  (...(?+1)...(relative)...
+.sp
+An earlier example pointed out that the pattern
+.sp
+  (sens|respons)e and \e1ibility
+.sp
+matches "sense and sensibility" and "response and responsibility", but not
+"sense and responsibility". If instead the pattern
+.sp
+  (sens|respons)e and (?1)ibility
+.sp
+is used, it does match "sense and responsibility" as well as the other two
+strings. Another example is given in the discussion of DEFINE above.
+.P
+All subroutine calls, whether recursive or not, are always treated as atomic
+groups. That is, once a subroutine has matched some of the subject string, it
+is never re-entered, even if it contains untried alternatives and there is a
+subsequent matching failure. Any capturing parentheses that are set during the
+subroutine call revert to their previous values afterwards.
+.P
+Processing options such as case-independence are fixed when a subpattern is
+defined, so if it is used as a subroutine, such options cannot be changed for
+different calls. For example, consider this pattern:
+.sp
+  (abc)(?i:(?-1))
+.sp
+It matches "abcabc". It does not match "abcABC" because the change of
+processing option does not affect the called subpattern.
+.
+.
+.\" HTML <a name="onigurumasubroutines"></a>
+.SH "ONIGURUMA SUBROUTINE SYNTAX"
+.rs
+.sp
+For compatibility with Oniguruma, the non-Perl syntax \eg followed by a name or
+a number enclosed either in angle brackets or single quotes, is an alternative
+syntax for referencing a subpattern as a subroutine, possibly recursively. Here
+are two of the examples used above, rewritten using this syntax:
+.sp
+  (?<pn> \e( ( (?>[^()]+) | \eg<pn> )* \e) )
+  (sens|respons)e and \eg'1'ibility
+.sp
+PCRE supports an extension to Oniguruma: if a number is preceded by a
+plus or a minus sign it is taken as a relative reference. For example:
+.sp
+  (abc)(?i:\eg<-1>)
+.sp
+Note that \eg{...} (Perl syntax) and \eg<...> (Oniguruma syntax) are \fInot\fP
+synonymous. The former is a back reference; the latter is a subroutine call.
+.
+.
+.SH CALLOUTS
+.rs
+.sp
+Perl has a feature whereby using the sequence (?{...}) causes arbitrary Perl
+code to be obeyed in the middle of matching a regular expression. This makes it
+possible, amongst other things, to extract different substrings that match the
+same pair of parentheses when there is a repetition.
+.P
+PCRE provides a similar feature, but of course it cannot obey arbitrary Perl
+code. The feature is called "callout". The caller of PCRE provides an external
+function by putting its entry point in the global variable \fIpcre_callout\fP
+(8-bit library) or \fIpcre16_callout\fP (16-bit library). By default, this
+variable contains NULL, which disables all calling out.
+.P
+Within a regular expression, (?C) indicates the points at which the external
+function is to be called. If you want to identify different callout points, you
+can put a number less than 256 after the letter C. The default value is zero.
+For example, this pattern has two callout points:
+.sp
+  (?C1)abc(?C2)def
+.sp
+If the PCRE_AUTO_CALLOUT flag is passed to a compiling function, callouts are
+automatically installed before each item in the pattern. They are all numbered
+255.
+.P
+During matching, when PCRE reaches a callout point, the external function is
+called. It is provided with the number of the callout, the position in the
+pattern, and, optionally, one item of data originally supplied by the caller of
+the matching function. The callout function may cause matching to proceed, to
+backtrack, or to fail altogether. A complete description of the interface to
+the callout function is given in the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation.
+.
+.
+.\" HTML <a name="backtrackcontrol"></a>
+.SH "BACKTRACKING CONTROL"
+.rs
+.sp
+Perl 5.10 introduced a number of "Special Backtracking Control Verbs", which
+are described in the Perl documentation as "experimental and subject to change
+or removal in a future version of Perl". It goes on to say: "Their usage in
+production code should be noted to avoid problems during upgrades." The same
+remarks apply to the PCRE features described in this section.
+.P
+Since these verbs are specifically related to backtracking, most of them can be
+used only when the pattern is to be matched using one of the traditional
+matching functions, which use a backtracking algorithm. With the exception of
+(*FAIL), which behaves like a failing negative assertion, they cause an error
+if encountered by a DFA matching function.
+.P
+If any of these verbs are used in an assertion or in a subpattern that is
+called as a subroutine (whether or not recursively), their effect is confined
+to that subpattern; it does not extend to the surrounding pattern, with one
+exception: the name from a *(MARK), (*PRUNE), or (*THEN) that is encountered in
+a successful positive assertion \fIis\fP passed back when a match succeeds
+(compare capturing parentheses in assertions). Note that such subpatterns are
+processed as anchored at the point where they are tested. Note also that Perl's
+treatment of subroutines and assertions is different in some cases.
+.P
+The new verbs make use of what was previously invalid syntax: an opening
+parenthesis followed by an asterisk. They are generally of the form
+(*VERB) or (*VERB:NAME). Some may take either form, with differing behaviour,
+depending on whether or not an argument is present. A name is any sequence of
+characters that does not include a closing parenthesis. The maximum length of
+name is 255 in the 8-bit library and 65535 in the 16-bit library. If the name
+is empty, that is, if the closing parenthesis immediately follows the colon,
+the effect is as if the colon were not there. Any number of these verbs may
+occur in a pattern.
+.
+.
+.\" HTML <a name="nooptimize"></a>
+.SS "Optimizations that affect backtracking verbs"
+.rs
+.sp
+PCRE contains some optimizations that are used to speed up matching by running
+some checks at the start of each match attempt. For example, it may know the
+minimum length of matching subject, or that a particular character must be
+present. When one of these optimizations suppresses the running of a match, any
+included backtracking verbs will not, of course, be processed. You can suppress
+the start-of-match optimizations by setting the PCRE_NO_START_OPTIMIZE option
+when calling \fBpcre_compile()\fP or \fBpcre_exec()\fP, or by starting the
+pattern with (*NO_START_OPT). There is more discussion of this option in the
+section entitled
+.\" HTML <a href="pcreapi.html#execoptions">
+.\" </a>
+"Option bits for \fBpcre_exec()\fP"
+.\"
+in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation.
+.P
+Experiments with Perl suggest that it too has similar optimizations, sometimes
+leading to anomalous results.
+.
+.
+.SS "Verbs that act immediately"
+.rs
+.sp
+The following verbs act as soon as they are encountered. They may not be
+followed by a name.
+.sp
+   (*ACCEPT)
+.sp
+This verb causes the match to end successfully, skipping the remainder of the
+pattern. However, when it is inside a subpattern that is called as a
+subroutine, only that subpattern is ended successfully. Matching then continues
+at the outer level. If (*ACCEPT) is inside capturing parentheses, the data so
+far is captured. For example:
+.sp
+  A((?:A|B(*ACCEPT)|C)D)
+.sp
+This matches "AB", "AAD", or "ACD"; when it matches "AB", "B" is captured by
+the outer parentheses.
+.sp
+  (*FAIL) or (*F)
+.sp
+This verb causes a matching failure, forcing backtracking to occur. It is
+equivalent to (?!) but easier to read. The Perl documentation notes that it is
+probably useful only when combined with (?{}) or (??{}). Those are, of course,
+Perl features that are not present in PCRE. The nearest equivalent is the
+callout feature, as for example in this pattern:
+.sp
+  a+(?C)(*FAIL)
+.sp
+A match with the string "aaaa" always fails, but the callout is taken before
+each backtrack happens (in this example, 10 times).
+.
+.
+.SS "Recording which path was taken"
+.rs
+.sp
+There is one verb whose main purpose is to track how a match was arrived at,
+though it also has a secondary use in conjunction with advancing the match
+starting point (see (*SKIP) below).
+.sp
+  (*MARK:NAME) or (*:NAME)
+.sp
+A name is always required with this verb. There may be as many instances of
+(*MARK) as you like in a pattern, and their names do not have to be unique.
+.P
+When a match succeeds, the name of the last-encountered (*MARK) on the matching
+path is passed back to the caller as described in the section entitled
+.\" HTML <a href="pcreapi.html#extradata">
+.\" </a>
+"Extra data for \fBpcre_exec()\fP"
+.\"
+in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation. Here is an example of \fBpcretest\fP output, where the /K
+modifier requests the retrieval and outputting of (*MARK) data:
+.sp
+    re> /X(*MARK:A)Y|X(*MARK:B)Z/K
+  data> XY
+   0: XY
+  MK: A
+  XZ
+   0: XZ
+  MK: B
+.sp
+The (*MARK) name is tagged with "MK:" in this output, and in this example it
+indicates which of the two alternatives matched. This is a more efficient way
+of obtaining this information than putting each alternative in its own
+capturing parentheses.
+.P
+If (*MARK) is encountered in a positive assertion, its name is recorded and
+passed back if it is the last-encountered. This does not happen for negative
+assertions.
+.P
+After a partial match or a failed match, the name of the last encountered
+(*MARK) in the entire match process is returned. For example:
+.sp
+    re> /X(*MARK:A)Y|X(*MARK:B)Z/K
+  data> XP
+  No match, mark = B
+.sp
+Note that in this unanchored example the mark is retained from the match
+attempt that started at the letter "X" in the subject. Subsequent match
+attempts starting at "P" and then with an empty string do not get as far as the
+(*MARK) item, but nevertheless do not reset it.
+.P
+If you are interested in (*MARK) values after failed matches, you should
+probably set the PCRE_NO_START_OPTIMIZE option
+.\" HTML <a href="#nooptimize">
+.\" </a>
+(see above)
+.\"
+to ensure that the match is always attempted.
+.
+.
+.SS "Verbs that act after backtracking"
+.rs
+.sp
+The following verbs do nothing when they are encountered. Matching continues
+with what follows, but if there is no subsequent match, causing a backtrack to
+the verb, a failure is forced. That is, backtracking cannot pass to the left of
+the verb. However, when one of these verbs appears inside an atomic group, its
+effect is confined to that group, because once the group has been matched,
+there is never any backtracking into it. In this situation, backtracking can
+"jump back" to the left of the entire atomic group. (Remember also, as stated
+above, that this localization also applies in subroutine calls and assertions.)
+.P
+These verbs differ in exactly what kind of failure occurs when backtracking
+reaches them.
+.sp
+  (*COMMIT)
+.sp
+This verb, which may not be followed by a name, causes the whole match to fail
+outright if the rest of the pattern does not match. Even if the pattern is
+unanchored, no further attempts to find a match by advancing the starting point
+take place. Once (*COMMIT) has been passed, \fBpcre_exec()\fP is committed to
+finding a match at the current starting point, or not at all. For example:
+.sp
+  a+(*COMMIT)b
+.sp
+This matches "xxaab" but not "aacaab". It can be thought of as a kind of
+dynamic anchor, or "I've started, so I must finish." The name of the most
+recently passed (*MARK) in the path is passed back when (*COMMIT) forces a
+match failure.
+.P
+Note that (*COMMIT) at the start of a pattern is not the same as an anchor,
+unless PCRE's start-of-match optimizations are turned off, as shown in this
+\fBpcretest\fP example:
+.sp
+    re> /(*COMMIT)abc/
+  data> xyzabc
+   0: abc
+  xyzabc\eY
+  No match
+.sp
+PCRE knows that any match must start with "a", so the optimization skips along
+the subject to "a" before running the first match attempt, which succeeds. When
+the optimization is disabled by the \eY escape in the second subject, the match
+starts at "x" and so the (*COMMIT) causes it to fail without trying any other
+starting points.
+.sp
+  (*PRUNE) or (*PRUNE:NAME)
+.sp
+This verb causes the match to fail at the current starting position in the
+subject if the rest of the pattern does not match. If the pattern is
+unanchored, the normal "bumpalong" advance to the next starting character then
+happens. Backtracking can occur as usual to the left of (*PRUNE), before it is
+reached, or when matching to the right of (*PRUNE), but if there is no match to
+the right, backtracking cannot cross (*PRUNE). In simple cases, the use of
+(*PRUNE) is just an alternative to an atomic group or possessive quantifier,
+but there are some uses of (*PRUNE) that cannot be expressed in any other way.
+The behaviour of (*PRUNE:NAME) is the same as (*MARK:NAME)(*PRUNE). In an
+anchored pattern (*PRUNE) has the same effect as (*COMMIT).
+.sp
+  (*SKIP)
+.sp
+This verb, when given without a name, is like (*PRUNE), except that if the
+pattern is unanchored, the "bumpalong" advance is not to the next character,
+but to the position in the subject where (*SKIP) was encountered. (*SKIP)
+signifies that whatever text was matched leading up to it cannot be part of a
+successful match. Consider:
+.sp
+  a+(*SKIP)b
+.sp
+If the subject is "aaaac...", after the first match attempt fails (starting at
+the first character in the string), the starting point skips on to start the
+next attempt at "c". Note that a possessive quantifer does not have the same
+effect as this example; although it would suppress backtracking during the
+first match attempt, the second attempt would start at the second character
+instead of skipping on to "c".
+.sp
+  (*SKIP:NAME)
+.sp
+When (*SKIP) has an associated name, its behaviour is modified. If the
+following pattern fails to match, the previous path through the pattern is
+searched for the most recent (*MARK) that has the same name. If one is found,
+the "bumpalong" advance is to the subject position that corresponds to that
+(*MARK) instead of to where (*SKIP) was encountered. If no (*MARK) with a
+matching name is found, the (*SKIP) is ignored.
+.sp
+  (*THEN) or (*THEN:NAME)
+.sp
+This verb causes a skip to the next innermost alternative if the rest of the
+pattern does not match. That is, it cancels pending backtracking, but only
+within the current alternative. Its name comes from the observation that it can
+be used for a pattern-based if-then-else block:
+.sp
+  ( COND1 (*THEN) FOO | COND2 (*THEN) BAR | COND3 (*THEN) BAZ ) ...
+.sp
+If the COND1 pattern matches, FOO is tried (and possibly further items after
+the end of the group if FOO succeeds); on failure, the matcher skips to the
+second alternative and tries COND2, without backtracking into COND1. The
+behaviour of (*THEN:NAME) is exactly the same as (*MARK:NAME)(*THEN).
+If (*THEN) is not inside an alternation, it acts like (*PRUNE).
+.P
+Note that a subpattern that does not contain a | character is just a part of
+the enclosing alternative; it is not a nested alternation with only one
+alternative. The effect of (*THEN) extends beyond such a subpattern to the
+enclosing alternative. Consider this pattern, where A, B, etc. are complex
+pattern fragments that do not contain any | characters at this level:
+.sp
+  A (B(*THEN)C) | D
+.sp
+If A and B are matched, but there is a failure in C, matching does not
+backtrack into A; instead it moves to the next alternative, that is, D.
+However, if the subpattern containing (*THEN) is given an alternative, it
+behaves differently:
+.sp
+  A (B(*THEN)C | (*FAIL)) | D
+.sp
+The effect of (*THEN) is now confined to the inner subpattern. After a failure
+in C, matching moves to (*FAIL), which causes the whole subpattern to fail
+because there are no more alternatives to try. In this case, matching does now
+backtrack into A.
+.P
+Note also that a conditional subpattern is not considered as having two
+alternatives, because only one is ever used. In other words, the | character in
+a conditional subpattern has a different meaning. Ignoring white space,
+consider:
+.sp
+  ^.*? (?(?=a) a | b(*THEN)c )
+.sp
+If the subject is "ba", this pattern does not match. Because .*? is ungreedy,
+it initially matches zero characters. The condition (?=a) then fails, the
+character "b" is matched, but "c" is not. At this point, matching does not
+backtrack to .*? as might perhaps be expected from the presence of the |
+character. The conditional subpattern is part of the single alternative that
+comprises the whole pattern, and so the match fails. (If there was a backtrack
+into .*?, allowing it to match "b", the match would succeed.)
+.P
+The verbs just described provide four different "strengths" of control when
+subsequent matching fails. (*THEN) is the weakest, carrying on the match at the
+next alternative. (*PRUNE) comes next, failing the match at the current
+starting position, but allowing an advance to the next character (for an
+unanchored pattern). (*SKIP) is similar, except that the advance may be more
+than one character. (*COMMIT) is the strongest, causing the entire match to
+fail.
+.P
+If more than one such verb is present in a pattern, the "strongest" one wins.
+For example, consider this pattern, where A, B, etc. are complex pattern
+fragments:
+.sp
+  (A(*COMMIT)B(*THEN)C|D)
+.sp
+Once A has matched, PCRE is committed to this match, at the current starting
+position. If subsequently B matches, but C does not, the normal (*THEN) action
+of trying the next alternative (that is, D) does not happen because (*COMMIT)
+overrides.
+.
+.
+.SH "SEE ALSO"
+.rs
+.sp
+\fBpcreapi\fP(3), \fBpcrecallout\fP(3), \fBpcrematching\fP(3),
+\fBpcresyntax\fP(3), \fBpcre\fP(3), \fBpcre16(3)\fP.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 17 June 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcreperform.3 b/8.31/doc/pcreperform.3
new file mode 100644
index 0000000..3cfad1d
--- /dev/null
+++ b/8.31/doc/pcreperform.3
@@ -0,0 +1,178 @@
+.TH PCREPERFORM 3 "09 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PCRE PERFORMANCE"
+.rs
+.sp
+Two aspects of performance are discussed below: memory usage and processing
+time. The way you express your pattern as a regular expression can affect both
+of them.
+.
+.SH "COMPILED PATTERN MEMORY USAGE"
+.rs
+.sp
+Patterns are compiled by PCRE into a reasonably efficient interpretive code, so
+that most simple patterns do not use much memory. However, there is one case
+where the memory usage of a compiled pattern can be unexpectedly large. If a
+parenthesized subpattern has a quantifier with a minimum greater than 1 and/or
+a limited maximum, the whole subpattern is repeated in the compiled code. For
+example, the pattern
+.sp
+  (abc|def){2,4}
+.sp
+is compiled as if it were
+.sp
+  (abc|def)(abc|def)((abc|def)(abc|def)?)?
+.sp
+(Technical aside: It is done this way so that backtrack points within each of
+the repetitions can be independently maintained.)
+.P
+For regular expressions whose quantifiers use only small numbers, this is not
+usually a problem. However, if the numbers are large, and particularly if such
+repetitions are nested, the memory usage can become an embarrassment. For
+example, the very simple pattern
+.sp
+  ((ab){1,1000}c){1,3}
+.sp
+uses 51K bytes when compiled using the 8-bit library. When PCRE is compiled
+with its default internal pointer size of two bytes, the size limit on a
+compiled pattern is 64K data units, and this is reached with the above pattern
+if the outer repetition is increased from 3 to 4. PCRE can be compiled to use
+larger internal pointers and thus handle larger compiled patterns, but it is
+better to try to rewrite your pattern to use less memory if you can.
+.P
+One way of reducing the memory usage for such patterns is to make use of PCRE's
+.\" HTML <a href="pcrepattern.html#subpatternsassubroutines">
+.\" </a>
+"subroutine"
+.\"
+facility. Re-writing the above pattern as
+.sp
+  ((ab)(?2){0,999}c)(?1){0,2}
+.sp
+reduces the memory requirements to 18K, and indeed it remains under 20K even
+with the outer repetition increased to 100. However, this pattern is not
+exactly equivalent, because the "subroutine" calls are treated as
+.\" HTML <a href="pcrepattern.html#atomicgroup">
+.\" </a>
+atomic groups
+.\"
+into which there can be no backtracking if there is a subsequent matching
+failure. Therefore, PCRE cannot do this kind of rewriting automatically.
+Furthermore, there is a noticeable loss of speed when executing the modified
+pattern. Nevertheless, if the atomic grouping is not a problem and the loss of
+speed is acceptable, this kind of rewriting will allow you to process patterns
+that PCRE cannot otherwise handle.
+.
+.
+.SH "STACK USAGE AT RUN TIME"
+.rs
+.sp
+When \fBpcre_exec()\fP or \fBpcre16_exec()\fP is used for matching, certain
+kinds of pattern can cause it to use large amounts of the process stack. In
+some environments the default process stack is quite small, and if it runs out
+the result is often SIGSEGV. This issue is probably the most frequently raised
+problem with PCRE. Rewriting your pattern can often help. The
+.\" HREF
+\fBpcrestack\fP
+.\"
+documentation discusses this issue in detail.
+.
+.
+.SH "PROCESSING TIME"
+.rs
+.sp
+Certain items in regular expression patterns are processed more efficiently
+than others. It is more efficient to use a character class like [aeiou] than a
+set of single-character alternatives such as (a|e|i|o|u). In general, the
+simplest construction that provides the required behaviour is usually the most
+efficient. Jeffrey Friedl's book contains a lot of useful general discussion
+about optimizing regular expressions for efficient performance. This document
+contains a few observations about PCRE.
+.P
+Using Unicode character properties (the \ep, \eP, and \eX escapes) is slow,
+because PCRE has to scan a structure that contains data for over fifteen
+thousand characters whenever it needs a character's property. If you can find
+an alternative pattern that does not use character properties, it will probably
+be faster.
+.P
+By default, the escape sequences \eb, \ed, \es, and \ew, and the POSIX
+character classes such as [:alpha:] do not use Unicode properties, partly for
+backwards compatibility, and partly for performance reasons. However, you can
+set PCRE_UCP if you want Unicode character properties to be used. This can
+double the matching time for items such as \ed, when matched with
+a traditional matching function; the performance loss is less with
+a DFA matching function, and in both cases there is not much difference for
+\eb.
+.P
+When a pattern begins with .* not in parentheses, or in parentheses that are
+not the subject of a backreference, and the PCRE_DOTALL option is set, the
+pattern is implicitly anchored by PCRE, since it can match only at the start of
+a subject string. However, if PCRE_DOTALL is not set, PCRE cannot make this
+optimization, because the . metacharacter does not then match a newline, and if
+the subject string contains newlines, the pattern may match from the character
+immediately following one of them instead of from the very start. For example,
+the pattern
+.sp
+  .*second
+.sp
+matches the subject "first\enand second" (where \en stands for a newline
+character), with the match starting at the seventh character. In order to do
+this, PCRE has to retry the match starting after every newline in the subject.
+.P
+If you are using such a pattern with subject strings that do not contain
+newlines, the best performance is obtained by setting PCRE_DOTALL, or starting
+the pattern with ^.* or ^.*? to indicate explicit anchoring. That saves PCRE
+from having to scan along the subject looking for a newline to restart at.
+.P
+Beware of patterns that contain nested indefinite repeats. These can take a
+long time to run when applied to a string that does not match. Consider the
+pattern fragment
+.sp
+  ^(a+)*
+.sp
+This can match "aaaa" in 16 different ways, and this number increases very
+rapidly as the string gets longer. (The * repeat can match 0, 1, 2, 3, or 4
+times, and for each of those cases other than 0 or 4, the + repeats can match
+different numbers of times.) When the remainder of the pattern is such that the
+entire match is going to fail, PCRE has in principle to try every possible
+variation, and this can take an extremely long time, even for relatively short
+strings.
+.P
+An optimization catches some of the more simple cases such as
+.sp
+  (a+)*b
+.sp
+where a literal character follows. Before embarking on the standard matching
+procedure, PCRE checks that there is a "b" later in the subject string, and if
+there is not, it fails the match immediately. However, when there is no
+following literal this optimization cannot be used. You can see the difference
+by comparing the behaviour of
+.sp
+  (a+)*\ed
+.sp
+with the pattern above. The former gives a failure almost instantly when
+applied to a whole line of "a" characters, whereas the latter takes an
+appreciable time with strings longer than about 20 characters.
+.P
+In many cases, the solution to this kind of performance issue is to use an
+atomic group or a possessive quantifier.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 09 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcreposix.3 b/8.31/doc/pcreposix.3
new file mode 100644
index 0000000..411e548
--- /dev/null
+++ b/8.31/doc/pcreposix.3
@@ -0,0 +1,270 @@
+.TH PCREPOSIX 3 "09 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions.
+.SH "SYNOPSIS OF POSIX API"
+.rs
+.sp
+.B #include <pcreposix.h>
+.PP
+.SM
+.B int regcomp(regex_t *\fIpreg\fP, const char *\fIpattern\fP,
+.ti +5n
+.B int \fIcflags\fP);
+.PP
+.B int regexec(regex_t *\fIpreg\fP, const char *\fIstring\fP,
+.ti +5n
+.B size_t \fInmatch\fP, regmatch_t \fIpmatch\fP[], int \fIeflags\fP);
+.PP
+.B size_t regerror(int \fIerrcode\fP, const regex_t *\fIpreg\fP,
+.ti +5n
+.B char *\fIerrbuf\fP, size_t \fIerrbuf_size\fP);
+.PP
+.B void regfree(regex_t *\fIpreg\fP);
+.
+.SH DESCRIPTION
+.rs
+.sp
+This set of functions provides a POSIX-style API for the PCRE regular
+expression 8-bit library. See the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation for a description of PCRE's native API, which contains much
+additional functionality. There is no POSIX-style wrapper for PCRE's 16-bit
+library.
+.P
+The functions described here are just wrapper functions that ultimately call
+the PCRE native API. Their prototypes are defined in the \fBpcreposix.h\fP
+header file, and on Unix systems the library itself is called
+\fBpcreposix.a\fP, so can be accessed by adding \fB-lpcreposix\fP to the
+command for linking an application that uses them. Because the POSIX functions
+call the native ones, it is also necessary to add \fB-lpcre\fP.
+.P
+I have implemented only those POSIX option bits that can be reasonably mapped
+to PCRE native options. In addition, the option REG_EXTENDED is defined with
+the value zero. This has no effect, but since programs that are written to the
+POSIX interface often use it, this makes it easier to slot in PCRE as a
+replacement library. Other POSIX options are not even defined.
+.P
+There are also some other options that are not defined by POSIX. These have
+been added at the request of users who want to make use of certain
+PCRE-specific features via the POSIX calling interface.
+.P
+When PCRE is called via these functions, it is only the API that is POSIX-like
+in style. The syntax and semantics of the regular expressions themselves are
+still those of Perl, subject to the setting of various PCRE options, as
+described below. "POSIX-like in style" means that the API approximates to the
+POSIX definition; it is not fully POSIX-compatible, and in multi-byte encoding
+domains it is probably even less compatible.
+.P
+The header for these functions is supplied as \fBpcreposix.h\fP to avoid any
+potential clash with other POSIX libraries. It can, of course, be renamed or
+aliased as \fBregex.h\fP, which is the "correct" name. It provides two
+structure types, \fIregex_t\fP for compiled internal forms, and
+\fIregmatch_t\fP for returning captured substrings. It also defines some
+constants whose names start with "REG_"; these are used for setting options and
+identifying error codes.
+.
+.
+.SH "COMPILING A PATTERN"
+.rs
+.sp
+The function \fBregcomp()\fP is called to compile a pattern into an
+internal form. The pattern is a C string terminated by a binary zero, and
+is passed in the argument \fIpattern\fP. The \fIpreg\fP argument is a pointer
+to a \fBregex_t\fP structure that is used as a base for storing information
+about the compiled regular expression.
+.P
+The argument \fIcflags\fP is either zero, or contains one or more of the bits
+defined by the following macros:
+.sp
+  REG_DOTALL
+.sp
+The PCRE_DOTALL option is set when the regular expression is passed for
+compilation to the native function. Note that REG_DOTALL is not part of the
+POSIX standard.
+.sp
+  REG_ICASE
+.sp
+The PCRE_CASELESS option is set when the regular expression is passed for
+compilation to the native function.
+.sp
+  REG_NEWLINE
+.sp
+The PCRE_MULTILINE option is set when the regular expression is passed for
+compilation to the native function. Note that this does \fInot\fP mimic the
+defined POSIX behaviour for REG_NEWLINE (see the following section).
+.sp
+  REG_NOSUB
+.sp
+The PCRE_NO_AUTO_CAPTURE option is set when the regular expression is passed
+for compilation to the native function. In addition, when a pattern that is
+compiled with this flag is passed to \fBregexec()\fP for matching, the
+\fInmatch\fP and \fIpmatch\fP arguments are ignored, and no captured strings
+are returned.
+.sp
+  REG_UCP
+.sp
+The PCRE_UCP option is set when the regular expression is passed for
+compilation to the native function. This causes PCRE to use Unicode properties
+when matchine \ed, \ew, etc., instead of just recognizing ASCII values. Note
+that REG_UTF8 is not part of the POSIX standard.
+.sp
+  REG_UNGREEDY
+.sp
+The PCRE_UNGREEDY option is set when the regular expression is passed for
+compilation to the native function. Note that REG_UNGREEDY is not part of the
+POSIX standard.
+.sp
+  REG_UTF8
+.sp
+The PCRE_UTF8 option is set when the regular expression is passed for
+compilation to the native function. This causes the pattern itself and all data
+strings used for matching it to be treated as UTF-8 strings. Note that REG_UTF8
+is not part of the POSIX standard.
+.P
+In the absence of these flags, no options are passed to the native function.
+This means the the regex is compiled with PCRE default semantics. In
+particular, the way it handles newline characters in the subject string is the
+Perl way, not the POSIX way. Note that setting PCRE_MULTILINE has only
+\fIsome\fP of the effects specified for REG_NEWLINE. It does not affect the way
+newlines are matched by . (they are not) or by a negative class such as [^a]
+(they are).
+.P
+The yield of \fBregcomp()\fP is zero on success, and non-zero otherwise. The
+\fIpreg\fP structure is filled in on success, and one member of the structure
+is public: \fIre_nsub\fP contains the number of capturing subpatterns in
+the regular expression. Various error codes are defined in the header file.
+.P
+NOTE: If the yield of \fBregcomp()\fP is non-zero, you must not attempt to
+use the contents of the \fIpreg\fP structure. If, for example, you pass it to
+\fBregexec()\fP, the result is undefined and your program is likely to crash.
+.
+.
+.SH "MATCHING NEWLINE CHARACTERS"
+.rs
+.sp
+This area is not simple, because POSIX and Perl take different views of things.
+It is not possible to get PCRE to obey POSIX semantics, but then PCRE was never
+intended to be a POSIX engine. The following table lists the different
+possibilities for matching newline characters in PCRE:
+.sp
+                          Default   Change with
+.sp
+  . matches newline          no     PCRE_DOTALL
+  newline matches [^a]       yes    not changeable
+  $ matches \en at end        yes    PCRE_DOLLARENDONLY
+  $ matches \en in middle     no     PCRE_MULTILINE
+  ^ matches \en in middle     no     PCRE_MULTILINE
+.sp
+This is the equivalent table for POSIX:
+.sp
+                          Default   Change with
+.sp
+  . matches newline          yes    REG_NEWLINE
+  newline matches [^a]       yes    REG_NEWLINE
+  $ matches \en at end        no     REG_NEWLINE
+  $ matches \en in middle     no     REG_NEWLINE
+  ^ matches \en in middle     no     REG_NEWLINE
+.sp
+PCRE's behaviour is the same as Perl's, except that there is no equivalent for
+PCRE_DOLLAR_ENDONLY in Perl. In both PCRE and Perl, there is no way to stop
+newline from matching [^a].
+.P
+The default POSIX newline handling can be obtained by setting PCRE_DOTALL and
+PCRE_DOLLAR_ENDONLY, but there is no way to make PCRE behave exactly as for the
+REG_NEWLINE action.
+.
+.
+.SH "MATCHING A PATTERN"
+.rs
+.sp
+The function \fBregexec()\fP is called to match a compiled pattern \fIpreg\fP
+against a given \fIstring\fP, which is by default terminated by a zero byte
+(but see REG_STARTEND below), subject to the options in \fIeflags\fP. These can
+be:
+.sp
+  REG_NOTBOL
+.sp
+The PCRE_NOTBOL option is set when calling the underlying PCRE matching
+function.
+.sp
+  REG_NOTEMPTY
+.sp
+The PCRE_NOTEMPTY option is set when calling the underlying PCRE matching
+function. Note that REG_NOTEMPTY is not part of the POSIX standard. However,
+setting this option can give more POSIX-like behaviour in some situations.
+.sp
+  REG_NOTEOL
+.sp
+The PCRE_NOTEOL option is set when calling the underlying PCRE matching
+function.
+.sp
+  REG_STARTEND
+.sp
+The string is considered to start at \fIstring\fP + \fIpmatch[0].rm_so\fP and
+to have a terminating NUL located at \fIstring\fP + \fIpmatch[0].rm_eo\fP
+(there need not actually be a NUL at that location), regardless of the value of
+\fInmatch\fP. This is a BSD extension, compatible with but not specified by
+IEEE Standard 1003.2 (POSIX.2), and should be used with caution in software
+intended to be portable to other systems. Note that a non-zero \fIrm_so\fP does
+not imply REG_NOTBOL; REG_STARTEND affects only the location of the string, not
+how it is matched.
+.P
+If the pattern was compiled with the REG_NOSUB flag, no data about any matched
+strings is returned. The \fInmatch\fP and \fIpmatch\fP arguments of
+\fBregexec()\fP are ignored.
+.P
+If the value of \fInmatch\fP is zero, or if the value \fIpmatch\fP is NULL,
+no data about any matched strings is returned.
+.P
+Otherwise,the portion of the string that was matched, and also any captured
+substrings, are returned via the \fIpmatch\fP argument, which points to an
+array of \fInmatch\fP structures of type \fIregmatch_t\fP, containing the
+members \fIrm_so\fP and \fIrm_eo\fP. These contain the offset to the first
+character of each substring and the offset to the first character after the end
+of each substring, respectively. The 0th element of the vector relates to the
+entire portion of \fIstring\fP that was matched; subsequent elements relate to
+the capturing subpatterns of the regular expression. Unused entries in the
+array have both structure members set to -1.
+.P
+A successful match yields a zero return; various error codes are defined in the
+header file, of which REG_NOMATCH is the "expected" failure code.
+.
+.
+.SH "ERROR MESSAGES"
+.rs
+.sp
+The \fBregerror()\fP function maps a non-zero errorcode from either
+\fBregcomp()\fP or \fBregexec()\fP to a printable message. If \fIpreg\fP is not
+NULL, the error should have arisen from the use of that structure. A message
+terminated by a binary zero is placed in \fIerrbuf\fP. The length of the
+message, including the zero, is limited to \fIerrbuf_size\fP. The yield of the
+function is the size of buffer needed to hold the whole message.
+.
+.
+.SH MEMORY USAGE
+.rs
+.sp
+Compiling a regular expression causes memory to be allocated and associated
+with the \fIpreg\fP structure. The function \fBregfree()\fP frees all such
+memory, after which \fIpreg\fP may no longer be used as a compiled expression.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 09 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcreprecompile.3 b/8.31/doc/pcreprecompile.3
new file mode 100644
index 0000000..13ee212
--- /dev/null
+++ b/8.31/doc/pcreprecompile.3
@@ -0,0 +1,151 @@
+.TH PCREPRECOMPILE 3 "10 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "SAVING AND RE-USING PRECOMPILED PCRE PATTERNS"
+.rs
+.sp
+If you are running an application that uses a large number of regular
+expression patterns, it may be useful to store them in a precompiled form
+instead of having to compile them every time the application is run.
+If you are not using any private character tables (see the
+.\" HREF
+\fBpcre_maketables()\fP
+.\"
+documentation), this is relatively straightforward. If you are using private
+tables, it is a little bit more complicated. However, if you are using the
+just-in-time optimization feature, it is not possible to save and reload the
+JIT data.
+.P
+If you save compiled patterns to a file, you can copy them to a different host
+and run them there. If the two hosts have different endianness (byte order),
+you should run the \fBpcre[16]_pattern_to_host_byte_order()\fP function on the
+new host before trying to match the pattern. The matching functions return
+PCRE_ERROR_BADENDIANNESS if they detect a pattern with the wrong endianness.
+.P
+Compiling regular expressions with one version of PCRE for use with a different
+version is not guaranteed to work and may cause crashes, and saving and
+restoring a compiled pattern loses any JIT optimization data.
+.
+.
+.SH "SAVING A COMPILED PATTERN"
+.rs
+.sp
+The value returned by \fBpcre[16]_compile()\fP points to a single block of
+memory that holds the compiled pattern and associated data. You can find the
+length of this block in bytes by calling \fBpcre[16]_fullinfo()\fP with an
+argument of PCRE_INFO_SIZE. You can then save the data in any appropriate
+manner. Here is sample code for the 8-bit library that compiles a pattern and
+writes it to a file. It assumes that the variable \fIfd\fP refers to a file
+that is open for output:
+.sp
+  int erroroffset, rc, size;
+  char *error;
+  pcre *re;
+.sp
+  re = pcre_compile("my pattern", 0, &error, &erroroffset, NULL);
+  if (re == NULL) { ... handle errors ... }
+  rc = pcre_fullinfo(re, NULL, PCRE_INFO_SIZE, &size);
+  if (rc < 0) { ... handle errors ... }
+  rc = fwrite(re, 1, size, fd);
+  if (rc != size) { ... handle errors ... }
+.sp
+In this example, the bytes that comprise the compiled pattern are copied
+exactly. Note that this is binary data that may contain any of the 256 possible
+byte values. On systems that make a distinction between binary and non-binary
+data, be sure that the file is opened for binary output.
+.P
+If you want to write more than one pattern to a file, you will have to devise a
+way of separating them. For binary data, preceding each pattern with its length
+is probably the most straightforward approach. Another possibility is to write
+out the data in hexadecimal instead of binary, one pattern to a line.
+.P
+Saving compiled patterns in a file is only one possible way of storing them for
+later use. They could equally well be saved in a database, or in the memory of
+some daemon process that passes them via sockets to the processes that want
+them.
+.P
+If the pattern has been studied, it is also possible to save the normal study
+data in a similar way to the compiled pattern itself. However, if the
+PCRE_STUDY_JIT_COMPILE was used, the just-in-time data that is created cannot
+be saved because it is too dependent on the current environment. When studying
+generates additional information, \fBpcre[16]_study()\fP returns a pointer to a
+\fBpcre[16]_extra\fP data block. Its format is defined in the
+.\" HTML <a href="pcreapi.html#extradata">
+.\" </a>
+section on matching a pattern
+.\"
+in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation. The \fIstudy_data\fP field points to the binary study data, and
+this is what you must save (not the \fBpcre[16]_extra\fP block itself). The
+length of the study data can be obtained by calling \fBpcre[16]_fullinfo()\fP
+with an argument of PCRE_INFO_STUDYSIZE. Remember to check that
+\fBpcre[16]_study()\fP did return a non-NULL value before trying to save the
+study data.
+.
+.
+.SH "RE-USING A PRECOMPILED PATTERN"
+.rs
+.sp
+Re-using a precompiled pattern is straightforward. Having reloaded it into main
+memory, called \fBpcre[16]_pattern_to_host_byte_order()\fP if necessary,
+you pass its pointer to \fBpcre[16]_exec()\fP or \fBpcre[16]_dfa_exec()\fP in
+the usual way.
+.P
+However, if you passed a pointer to custom character tables when the pattern
+was compiled (the \fItableptr\fP argument of \fBpcre[16]_compile()\fP), you
+must now pass a similar pointer to \fBpcre[16]_exec()\fP or
+\fBpcre[16]_dfa_exec()\fP, because the value saved with the compiled pattern
+will obviously be nonsense. A field in a \fBpcre[16]_extra()\fP block is used
+to pass this data, as described in the
+.\" HTML <a href="pcreapi.html#extradata">
+.\" </a>
+section on matching a pattern
+.\"
+in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation.
+.P
+If you did not provide custom character tables when the pattern was compiled,
+the pointer in the compiled pattern is NULL, which causes the matching
+functions to use PCRE's internal tables. Thus, you do not need to take any
+special action at run time in this case.
+.P
+If you saved study data with the compiled pattern, you need to create your own
+\fBpcre[16]_extra\fP data block and set the \fIstudy_data\fP field to point to the
+reloaded study data. You must also set the PCRE_EXTRA_STUDY_DATA bit in the
+\fIflags\fP field to indicate that study data is present. Then pass the
+\fBpcre[16]_extra\fP block to the matching function in the usual way. If the
+pattern was studied for just-in-time optimization, that data cannot be saved,
+and so is lost by a save/restore cycle.
+.
+.
+.SH "COMPATIBILITY WITH DIFFERENT PCRE RELEASES"
+.rs
+.sp
+In general, it is safest to recompile all saved patterns when you update to a
+new PCRE release, though not all updates actually require this.
+.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 10 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcresample.3 b/8.31/doc/pcresample.3
new file mode 100644
index 0000000..d7fe7ec
--- /dev/null
+++ b/8.31/doc/pcresample.3
@@ -0,0 +1,99 @@
+.TH PCRESAMPLE 3 "10 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PCRE SAMPLE PROGRAM"
+.rs
+.sp
+A simple, complete demonstration program, to get you started with using PCRE,
+is supplied in the file \fIpcredemo.c\fP in the PCRE distribution. A listing of
+this program is given in the
+.\" HREF
+\fBpcredemo\fP
+.\"
+documentation. If you do not have a copy of the PCRE distribution, you can save
+this listing to re-create \fIpcredemo.c\fP.
+.P
+The demonstration program, which uses the original PCRE 8-bit library, compiles
+the regular expression that is its first argument, and matches it against the
+subject string in its second argument. No PCRE options are set, and default
+character tables are used. If matching succeeds, the program outputs the
+portion of the subject that matched, together with the contents of any captured
+substrings.
+.P
+If the -g option is given on the command line, the program then goes on to
+check for further matches of the same regular expression in the same subject
+string. The logic is a little bit tricky because of the possibility of matching
+an empty string. Comments in the code explain what is going on.
+.P
+If PCRE is installed in the standard include and library directories for your
+operating system, you should be able to compile the demonstration program using
+this command:
+.sp
+  gcc -o pcredemo pcredemo.c -lpcre
+.sp
+If PCRE is installed elsewhere, you may need to add additional options to the
+command line. For example, on a Unix-like system that has PCRE installed in
+\fI/usr/local\fP, you can compile the demonstration program using a command
+like this:
+.sp
+.\" JOINSH
+  gcc -o pcredemo -I/usr/local/include pcredemo.c \e
+      -L/usr/local/lib -lpcre
+.sp
+In a Windows environment, if you want to statically link the program against a
+non-dll \fBpcre.a\fP file, you must uncomment the line that defines PCRE_STATIC
+before including \fBpcre.h\fP, because otherwise the \fBpcre_malloc()\fP and
+\fBpcre_free()\fP exported functions will be declared
+\fB__declspec(dllimport)\fP, with unwanted results.
+.P
+Once you have compiled and linked the demonstration program, you can run simple
+tests like this:
+.sp
+  ./pcredemo 'cat|dog' 'the cat sat on the mat'
+  ./pcredemo -g 'cat|dog' 'the dog sat on the cat'
+.sp
+Note that there is a much more comprehensive test program, called
+.\" HREF
+\fBpcretest\fP,
+.\"
+which supports many more facilities for testing regular expressions and both
+PCRE libraries. The
+.\" HREF
+\fBpcredemo\fP
+.\"
+program is provided as a simple coding example.
+.P
+If you try to run
+.\" HREF
+\fBpcredemo\fP
+.\"
+when PCRE is not installed in the standard library directory, you may get an
+error like this on some operating systems (e.g. Solaris):
+.sp
+  ld.so.1: a.out: fatal: libpcre.so.0: open failed: No such file or directory
+.sp
+This is caused by the way shared library support works on those systems. You
+need to add
+.sp
+  -R/usr/local/lib
+.sp
+(for example) to the compile command to get round this problem.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 10 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcrestack.3 b/8.31/doc/pcrestack.3
new file mode 100644
index 0000000..fdd7fd9
--- /dev/null
+++ b/8.31/doc/pcrestack.3
@@ -0,0 +1,215 @@
+.TH PCRESTACK 3 "21 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PCRE DISCUSSION OF STACK USAGE"
+.rs
+.sp
+When you call \fBpcre[16]_exec()\fP, it makes use of an internal function
+called \fBmatch()\fP. This calls itself recursively at branch points in the
+pattern, in order to remember the state of the match so that it can back up and
+try a different alternative if the first one fails. As matching proceeds deeper
+and deeper into the tree of possibilities, the recursion depth increases. The
+\fBmatch()\fP function is also called in other circumstances, for example,
+whenever a parenthesized sub-pattern is entered, and in certain cases of
+repetition.
+.P
+Not all calls of \fBmatch()\fP increase the recursion depth; for an item such
+as a* it may be called several times at the same level, after matching
+different numbers of a's. Furthermore, in a number of cases where the result of
+the recursive call would immediately be passed back as the result of the
+current call (a "tail recursion"), the function is just restarted instead.
+.P
+The above comments apply when \fBpcre[16]_exec()\fP is run in its normal
+interpretive manner. If the pattern was studied with the
+PCRE_STUDY_JIT_COMPILE option, and just-in-time compiling was successful, and
+the options passed to \fBpcre[16]_exec()\fP were not incompatible, the matching
+process uses the JIT-compiled code instead of the \fBmatch()\fP function. In
+this case, the memory requirements are handled entirely differently. See the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation for details.
+.P
+The \fBpcre[16]_dfa_exec()\fP function operates in an entirely different way,
+and uses recursion only when there is a regular expression recursion or
+subroutine call in the pattern. This includes the processing of assertion and
+"once-only" subpatterns, which are handled like subroutine calls. Normally,
+these are never very deep, and the limit on the complexity of
+\fBpcre[16]_dfa_exec()\fP is controlled by the amount of workspace it is given.
+However, it is possible to write patterns with runaway infinite recursions;
+such patterns will cause \fBpcre[16]_dfa_exec()\fP to run out of stack. At
+present, there is no protection against this.
+.P
+The comments that follow do NOT apply to \fBpcre[16]_dfa_exec()\fP; they are
+relevant only for \fBpcre[16]_exec()\fP without the JIT optimization.
+.
+.
+.SS "Reducing \fBpcre[16]_exec()\fP's stack usage"
+.rs
+.sp
+Each time that \fBmatch()\fP is actually called recursively, it uses memory
+from the process stack. For certain kinds of pattern and data, very large
+amounts of stack may be needed, despite the recognition of "tail recursion".
+You can often reduce the amount of recursion, and therefore the amount of stack
+used, by modifying the pattern that is being matched. Consider, for example,
+this pattern:
+.sp
+  ([^<]|<(?!inet))+
+.sp
+It matches from wherever it starts until it encounters "<inet" or the end of
+the data, and is the kind of pattern that might be used when processing an XML
+file. Each iteration of the outer parentheses matches either one character that
+is not "<" or a "<" that is not followed by "inet". However, each time a
+parenthesis is processed, a recursion occurs, so this formulation uses a stack
+frame for each matched character. For a long string, a lot of stack is
+required. Consider now this rewritten pattern, which matches exactly the same
+strings:
+.sp
+  ([^<]++|<(?!inet))+
+.sp
+This uses very much less stack, because runs of characters that do not contain
+"<" are "swallowed" in one item inside the parentheses. Recursion happens only
+when a "<" character that is not followed by "inet" is encountered (and we
+assume this is relatively rare). A possessive quantifier is used to stop any
+backtracking into the runs of non-"<" characters, but that is not related to
+stack usage.
+.P
+This example shows that one way of avoiding stack problems when matching long
+subject strings is to write repeated parenthesized subpatterns to match more
+than one character whenever possible.
+.
+.
+.SS "Compiling PCRE to use heap instead of stack for \fBpcre[16]_exec()\fP"
+.rs
+.sp
+In environments where stack memory is constrained, you might want to compile
+PCRE to use heap memory instead of stack for remembering back-up points when
+\fBpcre[16]_exec()\fP is running. This makes it run a lot more slowly, however.
+Details of how to do this are given in the
+.\" HREF
+\fBpcrebuild\fP
+.\"
+documentation. When built in this way, instead of using the stack, PCRE obtains
+and frees memory by calling the functions that are pointed to by the
+\fBpcre[16]_stack_malloc\fP and \fBpcre[16]_stack_free\fP variables. By
+default, these point to \fBmalloc()\fP and \fBfree()\fP, but you can replace
+the pointers to cause PCRE to use your own functions. Since the block sizes are
+always the same, and are always freed in reverse order, it may be possible to
+implement customized memory handlers that are more efficient than the standard
+functions.
+.
+.
+.SS "Limiting \fBpcre[16]_exec()\fP's stack usage"
+.rs
+.sp
+You can set limits on the number of times that \fBmatch()\fP is called, both in
+total and recursively. If a limit is exceeded, \fBpcre[16]_exec()\fP returns an
+error code. Setting suitable limits should prevent it from running out of
+stack. The default values of the limits are very large, and unlikely ever to
+operate. They can be changed when PCRE is built, and they can also be set when
+\fBpcre[16]_exec()\fP is called. For details of these interfaces, see the
+.\" HREF
+\fBpcrebuild\fP
+.\"
+documentation and the
+.\" HTML <a href="pcreapi.html#extradata">
+.\" </a>
+section on extra data for \fBpcre[16]_exec()\fP
+.\"
+in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation.
+.P
+As a very rough rule of thumb, you should reckon on about 500 bytes per
+recursion. Thus, if you want to limit your stack usage to 8Mb, you should set
+the limit at 16000 recursions. A 64Mb stack, on the other hand, can support
+around 128000 recursions.
+.P
+In Unix-like environments, the \fBpcretest\fP test program has a command line
+option (\fB-S\fP) that can be used to increase the size of its stack. As long
+as the stack is large enough, another option (\fB-M\fP) can be used to find the
+smallest limits that allow a particular pattern to match a given subject
+string. This is done by calling \fBpcre[16]_exec()\fP repeatedly with different
+limits.
+.
+.
+.SS "Obtaining an estimate of stack usage"
+.rs
+.sp
+The actual amount of stack used per recursion can vary quite a lot, depending
+on the compiler that was used to build PCRE and the optimization or debugging
+options that were set for it. The rule of thumb value of 500 bytes mentioned
+above may be larger or smaller than what is actually needed. A better
+approximation can be obtained by running this command:
+.sp
+  pcretest -m -C
+.sp
+The \fB-C\fP option causes \fBpcretest\fP to output information about the
+options with which PCRE was compiled. When \fB-m\fP is also given (before
+\fB-C\fP), information about stack use is given in a line like this:
+.sp
+  Match recursion uses stack: approximate frame size = 640 bytes
+.sp
+The value is approximate because some recursions need a bit more (up to perhaps
+16 more bytes).
+.P
+If the above command is given when PCRE is compiled to use the heap instead of
+the stack for recursion, the value that is output is the size of each block
+that is obtained from the heap.
+.
+.
+.SS "Changing stack size in Unix-like systems"
+.rs
+.sp
+In Unix-like environments, there is not often a problem with the stack unless
+very long strings are involved, though the default limit on stack size varies
+from system to system. Values from 8Mb to 64Mb are common. You can find your
+default limit by running the command:
+.sp
+  ulimit -s
+.sp
+Unfortunately, the effect of running out of stack is often SIGSEGV, though
+sometimes a more explicit error message is given. You can normally increase the
+limit on stack size by code such as this:
+.sp
+  struct rlimit rlim;
+  getrlimit(RLIMIT_STACK, &rlim);
+  rlim.rlim_cur = 100*1024*1024;
+  setrlimit(RLIMIT_STACK, &rlim);
+.sp
+This reads the current limits (soft and hard) using \fBgetrlimit()\fP, then
+attempts to increase the soft limit to 100Mb using \fBsetrlimit()\fP. You must
+do this before calling \fBpcre[16]_exec()\fP.
+.
+.
+.SS "Changing stack size in Mac OS X"
+.rs
+.sp
+Using \fBsetrlimit()\fP, as described above, should also work on Mac OS X. It
+is also possible to set a stack size when linking a program. There is a
+discussion about stack sizes in Mac OS X at this web site:
+.\" HTML <a href="http://developer.apple.com/qa/qa2005/qa1419.html">
+.\" </a>
+http://developer.apple.com/qa/qa2005/qa1419.html.
+.\"
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 21 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcresyntax.3 b/8.31/doc/pcresyntax.3
new file mode 100644
index 0000000..59eaa84
--- /dev/null
+++ b/8.31/doc/pcresyntax.3
@@ -0,0 +1,494 @@
+.TH PCRESYNTAX 3 "10 January 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "PCRE REGULAR EXPRESSION SYNTAX SUMMARY"
+.rs
+.sp
+The full syntax and semantics of the regular expressions that are supported by
+PCRE are described in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation. This document contains a quick-reference summary of the syntax.
+.
+.
+.SH "QUOTING"
+.rs
+.sp
+  \ex         where x is non-alphanumeric is a literal x
+  \eQ...\eE    treat enclosed characters as literal
+.
+.
+.SH "CHARACTERS"
+.rs
+.sp
+  \ea         alarm, that is, the BEL character (hex 07)
+  \ecx        "control-x", where x is any ASCII character
+  \ee         escape (hex 1B)
+  \ef         form feed (hex 0C)
+  \en         newline (hex 0A)
+  \er         carriage return (hex 0D)
+  \et         tab (hex 09)
+  \eddd       character with octal code ddd, or backreference
+  \exhh       character with hex code hh
+  \ex{hhh..}  character with hex code hhh..
+.
+.
+.SH "CHARACTER TYPES"
+.rs
+.sp
+  .          any character except newline;
+               in dotall mode, any character whatsoever
+  \eC         one data unit, even in UTF mode (best avoided)
+  \ed         a decimal digit
+  \eD         a character that is not a decimal digit
+  \eh         a horizontal white space character
+  \eH         a character that is not a horizontal white space character
+  \eN         a character that is not a newline
+  \ep{\fIxx\fP}     a character with the \fIxx\fP property
+  \eP{\fIxx\fP}     a character without the \fIxx\fP property
+  \eR         a newline sequence
+  \es         a white space character
+  \eS         a character that is not a white space character
+  \ev         a vertical white space character
+  \eV         a character that is not a vertical white space character
+  \ew         a "word" character
+  \eW         a "non-word" character
+  \eX         an extended Unicode sequence
+.sp
+In PCRE, by default, \ed, \eD, \es, \eS, \ew, and \eW recognize only ASCII
+characters, even in a UTF mode. However, this can be changed by setting the
+PCRE_UCP option.
+.
+.
+.SH "GENERAL CATEGORY PROPERTIES FOR \ep and \eP"
+.rs
+.sp
+  C          Other
+  Cc         Control
+  Cf         Format
+  Cn         Unassigned
+  Co         Private use
+  Cs         Surrogate
+.sp
+  L          Letter
+  Ll         Lower case letter
+  Lm         Modifier letter
+  Lo         Other letter
+  Lt         Title case letter
+  Lu         Upper case letter
+  L&         Ll, Lu, or Lt
+.sp
+  M          Mark
+  Mc         Spacing mark
+  Me         Enclosing mark
+  Mn         Non-spacing mark
+.sp
+  N          Number
+  Nd         Decimal number
+  Nl         Letter number
+  No         Other number
+.sp
+  P          Punctuation
+  Pc         Connector punctuation
+  Pd         Dash punctuation
+  Pe         Close punctuation
+  Pf         Final punctuation
+  Pi         Initial punctuation
+  Po         Other punctuation
+  Ps         Open punctuation
+.sp
+  S          Symbol
+  Sc         Currency symbol
+  Sk         Modifier symbol
+  Sm         Mathematical symbol
+  So         Other symbol
+.sp
+  Z          Separator
+  Zl         Line separator
+  Zp         Paragraph separator
+  Zs         Space separator
+.
+.
+.SH "PCRE SPECIAL CATEGORY PROPERTIES FOR \ep and \eP"
+.rs
+.sp
+  Xan        Alphanumeric: union of properties L and N
+  Xps        POSIX space: property Z or tab, NL, VT, FF, CR
+  Xsp        Perl space: property Z or tab, NL, FF, CR
+  Xwd        Perl word: property Xan or underscore
+.
+.
+.SH "SCRIPT NAMES FOR \ep AND \eP"
+.rs
+.sp
+Arabic,
+Armenian,
+Avestan,
+Balinese,
+Bamum,
+Batak,
+Bengali,
+Bopomofo,
+Brahmi,
+Braille,
+Buginese,
+Buhid,
+Canadian_Aboriginal,
+Carian,
+Chakma,
+Cham,
+Cherokee,
+Common,
+Coptic,
+Cuneiform,
+Cypriot,
+Cyrillic,
+Deseret,
+Devanagari,
+Egyptian_Hieroglyphs,
+Ethiopic,
+Georgian,
+Glagolitic,
+Gothic,
+Greek,
+Gujarati,
+Gurmukhi,
+Han,
+Hangul,
+Hanunoo,
+Hebrew,
+Hiragana,
+Imperial_Aramaic,
+Inherited,
+Inscriptional_Pahlavi,
+Inscriptional_Parthian,
+Javanese,
+Kaithi,
+Kannada,
+Katakana,
+Kayah_Li,
+Kharoshthi,
+Khmer,
+Lao,
+Latin,
+Lepcha,
+Limbu,
+Linear_B,
+Lisu,
+Lycian,
+Lydian,
+Malayalam,
+Mandaic,
+Meetei_Mayek,
+Meroitic_Cursive,
+Meroitic_Hieroglyphs,
+Miao,
+Mongolian,
+Myanmar,
+New_Tai_Lue,
+Nko,
+Ogham,
+Old_Italic,
+Old_Persian,
+Old_South_Arabian,
+Old_Turkic,
+Ol_Chiki,
+Oriya,
+Osmanya,
+Phags_Pa,
+Phoenician,
+Rejang,
+Runic,
+Samaritan,
+Saurashtra,
+Sharada,
+Shavian,
+Sinhala,
+Sora_Sompeng,
+Sundanese,
+Syloti_Nagri,
+Syriac,
+Tagalog,
+Tagbanwa,
+Tai_Le,
+Tai_Tham,
+Tai_Viet,
+Takri,
+Tamil,
+Telugu,
+Thaana,
+Thai,
+Tibetan,
+Tifinagh,
+Ugaritic,
+Vai,
+Yi.
+.
+.
+.SH "CHARACTER CLASSES"
+.rs
+.sp
+  [...]       positive character class
+  [^...]      negative character class
+  [x-y]       range (can be used for hex characters)
+  [[:xxx:]]   positive POSIX named set
+  [[:^xxx:]]  negative POSIX named set
+.sp
+  alnum       alphanumeric
+  alpha       alphabetic
+  ascii       0-127
+  blank       space or tab
+  cntrl       control character
+  digit       decimal digit
+  graph       printing, excluding space
+  lower       lower case letter
+  print       printing, including space
+  punct       printing, excluding alphanumeric
+  space       white space
+  upper       upper case letter
+  word        same as \ew
+  xdigit      hexadecimal digit
+.sp
+In PCRE, POSIX character set names recognize only ASCII characters by default,
+but some of them use Unicode properties if PCRE_UCP is set. You can use
+\eQ...\eE inside a character class.
+.
+.
+.SH "QUANTIFIERS"
+.rs
+.sp
+  ?           0 or 1, greedy
+  ?+          0 or 1, possessive
+  ??          0 or 1, lazy
+  *           0 or more, greedy
+  *+          0 or more, possessive
+  *?          0 or more, lazy
+  +           1 or more, greedy
+  ++          1 or more, possessive
+  +?          1 or more, lazy
+  {n}         exactly n
+  {n,m}       at least n, no more than m, greedy
+  {n,m}+      at least n, no more than m, possessive
+  {n,m}?      at least n, no more than m, lazy
+  {n,}        n or more, greedy
+  {n,}+       n or more, possessive
+  {n,}?       n or more, lazy
+.
+.
+.SH "ANCHORS AND SIMPLE ASSERTIONS"
+.rs
+.sp
+  \eb          word boundary
+  \eB          not a word boundary
+  ^           start of subject
+               also after internal newline in multiline mode
+  \eA          start of subject
+  $           end of subject
+               also before newline at end of subject
+               also before internal newline in multiline mode
+  \eZ          end of subject
+               also before newline at end of subject
+  \ez          end of subject
+  \eG          first matching position in subject
+.
+.
+.SH "MATCH POINT RESET"
+.rs
+.sp
+  \eK          reset start of match
+.
+.
+.SH "ALTERNATION"
+.rs
+.sp
+  expr|expr|expr...
+.
+.
+.SH "CAPTURING"
+.rs
+.sp
+  (...)           capturing group
+  (?<name>...)    named capturing group (Perl)
+  (?'name'...)    named capturing group (Perl)
+  (?P<name>...)   named capturing group (Python)
+  (?:...)         non-capturing group
+  (?|...)         non-capturing group; reset group numbers for
+                   capturing groups in each alternative
+.
+.
+.SH "ATOMIC GROUPS"
+.rs
+.sp
+  (?>...)         atomic, non-capturing group
+.
+.
+.
+.
+.SH "COMMENT"
+.rs
+.sp
+  (?#....)        comment (not nestable)
+.
+.
+.SH "OPTION SETTING"
+.rs
+.sp
+  (?i)            caseless
+  (?J)            allow duplicate names
+  (?m)            multiline
+  (?s)            single line (dotall)
+  (?U)            default ungreedy (lazy)
+  (?x)            extended (ignore white space)
+  (?-...)         unset option(s)
+.sp
+The following are recognized only at the start of a pattern or after one of the
+newline-setting options with similar syntax:
+.sp
+  (*NO_START_OPT) no start-match optimization (PCRE_NO_START_OPTIMIZE)
+  (*UTF8)         set UTF-8 mode: 8-bit library (PCRE_UTF8)
+  (*UTF16)        set UTF-16 mode: 16-bit library (PCRE_UTF16)
+  (*UCP)          set PCRE_UCP (use Unicode properties for \ed etc)
+.
+.
+.SH "LOOKAHEAD AND LOOKBEHIND ASSERTIONS"
+.rs
+.sp
+  (?=...)         positive look ahead
+  (?!...)         negative look ahead
+  (?<=...)        positive look behind
+  (?<!...)        negative look behind
+.sp
+Each top-level branch of a look behind must be of a fixed length.
+.
+.
+.SH "BACKREFERENCES"
+.rs
+.sp
+  \en              reference by number (can be ambiguous)
+  \egn             reference by number
+  \eg{n}           reference by number
+  \eg{-n}          relative reference by number
+  \ek<name>        reference by name (Perl)
+  \ek'name'        reference by name (Perl)
+  \eg{name}        reference by name (Perl)
+  \ek{name}        reference by name (.NET)
+  (?P=name)       reference by name (Python)
+.
+.
+.SH "SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)"
+.rs
+.sp
+  (?R)            recurse whole pattern
+  (?n)            call subpattern by absolute number
+  (?+n)           call subpattern by relative number
+  (?-n)           call subpattern by relative number
+  (?&name)        call subpattern by name (Perl)
+  (?P>name)       call subpattern by name (Python)
+  \eg<name>        call subpattern by name (Oniguruma)
+  \eg'name'        call subpattern by name (Oniguruma)
+  \eg<n>           call subpattern by absolute number (Oniguruma)
+  \eg'n'           call subpattern by absolute number (Oniguruma)
+  \eg<+n>          call subpattern by relative number (PCRE extension)
+  \eg'+n'          call subpattern by relative number (PCRE extension)
+  \eg<-n>          call subpattern by relative number (PCRE extension)
+  \eg'-n'          call subpattern by relative number (PCRE extension)
+.
+.
+.SH "CONDITIONAL PATTERNS"
+.rs
+.sp
+  (?(condition)yes-pattern)
+  (?(condition)yes-pattern|no-pattern)
+.sp
+  (?(n)...        absolute reference condition
+  (?(+n)...       relative reference condition
+  (?(-n)...       relative reference condition
+  (?(<name>)...   named reference condition (Perl)
+  (?('name')...   named reference condition (Perl)
+  (?(name)...     named reference condition (PCRE)
+  (?(R)...        overall recursion condition
+  (?(Rn)...       specific group recursion condition
+  (?(R&name)...   specific recursion condition
+  (?(DEFINE)...   define subpattern for reference
+  (?(assert)...   assertion condition
+.
+.
+.SH "BACKTRACKING CONTROL"
+.rs
+.sp
+The following act immediately they are reached:
+.sp
+  (*ACCEPT)       force successful match
+  (*FAIL)         force backtrack; synonym (*F)
+  (*MARK:NAME)    set name to be passed back; synonym (*:NAME)
+.sp
+The following act only when a subsequent match failure causes a backtrack to
+reach them. They all force a match failure, but they differ in what happens
+afterwards. Those that advance the start-of-match point do so only if the
+pattern is not anchored.
+.sp
+  (*COMMIT)       overall failure, no advance of starting point
+  (*PRUNE)        advance to next starting character
+  (*PRUNE:NAME)   equivalent to (*MARK:NAME)(*PRUNE)
+  (*SKIP)         advance to current matching position
+  (*SKIP:NAME)    advance to position corresponding to an earlier
+                  (*MARK:NAME); if not found, the (*SKIP) is ignored
+  (*THEN)         local failure, backtrack to next alternation
+  (*THEN:NAME)    equivalent to (*MARK:NAME)(*THEN)
+.
+.
+.SH "NEWLINE CONVENTIONS"
+.rs
+.sp
+These are recognized only at the very start of the pattern or after a
+(*BSR_...), (*UTF8), (*UTF16) or (*UCP) option.
+.sp
+  (*CR)           carriage return only
+  (*LF)           linefeed only
+  (*CRLF)         carriage return followed by linefeed
+  (*ANYCRLF)      all three of the above
+  (*ANY)          any Unicode newline sequence
+.
+.
+.SH "WHAT \eR MATCHES"
+.rs
+.sp
+These are recognized only at the very start of the pattern or after a
+(*...) option that sets the newline convention or a UTF or UCP mode.
+.sp
+  (*BSR_ANYCRLF)  CR, LF, or CRLF
+  (*BSR_UNICODE)  any Unicode newline sequence
+.
+.
+.SH "CALLOUTS"
+.rs
+.sp
+  (?C)      callout
+  (?Cn)     callout with data n
+.
+.
+.SH "SEE ALSO"
+.rs
+.sp
+\fBpcrepattern\fP(3), \fBpcreapi\fP(3), \fBpcrecallout\fP(3),
+\fBpcrematching\fP(3), \fBpcre\fP(3).
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 10 January 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcretest.1 b/8.31/doc/pcretest.1
new file mode 100644
index 0000000..28d0c26
--- /dev/null
+++ b/8.31/doc/pcretest.1
@@ -0,0 +1,971 @@
+.TH PCRETEST 1 "21 February 2012" "PCRE 8.31"
+.SH NAME
+pcretest - a program for testing Perl-compatible regular expressions.
+.SH SYNOPSIS
+.rs
+.sp
+.B pcretest "[options] [input file [output file]]"
+.sp
+\fBpcretest\fP was written as a test program for the PCRE regular expression
+library itself, but it can also be used for experimenting with regular
+expressions. This document describes the features of the test program; for
+details of the regular expressions themselves, see the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation. For details of the PCRE library function calls and their
+options, see the
+.\" HREF
+\fBpcreapi\fP
+.\"
+and
+.\" HREF
+\fBpcre16\fP
+.\"
+documentation. The input for \fBpcretest\fP is a sequence of regular expression
+patterns and strings to be matched, as described below. The output shows the
+result of each match. Options on the command line and the patterns control PCRE
+options and exactly what is output.
+.
+.
+.SH "PCRE's 8-BIT and 16-BIT LIBRARIES"
+.rs
+.sp
+From release 8.30, two separate PCRE libraries can be built. The original one
+supports 8-bit character strings, whereas the newer 16-bit library supports
+character strings encoded in 16-bit units. The \fBpcretest\fP program can be
+used to test both libraries. However, it is itself still an 8-bit program,
+reading 8-bit input and writing 8-bit output. When testing the 16-bit library,
+the patterns and data strings are converted to 16-bit format before being
+passed to the PCRE library functions. Results are converted to 8-bit for
+output.
+.P
+References to functions and structures of the form \fBpcre[16]_xx\fP below
+mean "\fBpcre_xx\fP when using the 8-bit library or \fBpcre16_xx\fP when using
+the 16-bit library".
+.
+.
+.SH "COMMAND LINE OPTIONS"
+.rs
+.TP 10
+\fB-16\fP
+If both the 8-bit and the 16-bit libraries have been built, this option causes
+the 16-bit library to be used. If only the 16-bit library has been built, this
+is the default (so has no effect). If only the 8-bit library has been built,
+this option causes an error.
+.TP 10
+\fB-b\fP
+Behave as if each pattern has the \fB/B\fP (show byte code) modifier; the
+internal form is output after compilation.
+.TP 10
+\fB-C\fP
+Output the version number of the PCRE library, and all available information
+about the optional features that are included, and then exit. All other options
+are ignored.
+.TP 10
+\fB-C\fP \fIoption\fP
+Output information about a specific build-time option, then exit. This
+functionality is intended for use in scripts such as \fBRunTest\fP. The
+following options output the value indicated:
+.sp
+  linksize   the internal link size (2, 3, or 4)
+  newline    the default newline setting:
+               CR, LF, CRLF, ANYCRLF, or ANY
+.sp
+The following options output 1 for true or zero for false:
+.sp
+  jit        just-in-time support is available
+  pcre16     the 16-bit library was built
+  pcre8      the 8-bit library was built
+  ucp        Unicode property support is available
+  utf        UTF-8 and/or UTF-16 support is available
+.TP 10
+\fB-d\fP
+Behave as if each pattern has the \fB/D\fP (debug) modifier; the internal
+form and information about the compiled pattern is output after compilation;
+\fB-d\fP is equivalent to \fB-b -i\fP.
+.TP 10
+\fB-dfa\fP
+Behave as if each data line contains the \eD escape sequence; this causes the
+alternative matching function, \fBpcre[16]_dfa_exec()\fP, to be used instead of
+the standard \fBpcre[16]_exec()\fP function (more detail is given below).
+.TP 10
+\fB-help\fP
+Output a brief summary these options and then exit.
+.TP 10
+\fB-i\fP
+Behave as if each pattern has the \fB/I\fP modifier; information about the
+compiled pattern is given after compilation.
+.TP 10
+\fB-M\fP
+Behave as if each data line contains the \eM escape sequence; this causes
+PCRE to discover the minimum MATCH_LIMIT and MATCH_LIMIT_RECURSION settings by
+calling \fBpcre[16]_exec()\fP repeatedly with different limits.
+.TP 10
+\fB-m\fP
+Output the size of each compiled pattern after it has been compiled. This is
+equivalent to adding \fB/M\fP to each regular expression. The size is given in
+bytes for both libraries.
+.TP 10
+\fB-o\fP \fIosize\fP
+Set the number of elements in the output vector that is used when calling
+\fBpcre[16]_exec()\fP or \fBpcre[16]_dfa_exec()\fP to be \fIosize\fP. The
+default value is 45, which is enough for 14 capturing subexpressions for
+\fBpcre[16]_exec()\fP or 22 different matches for \fBpcre[16]_dfa_exec()\fP.
+The vector size can be changed for individual matching calls by including \eO
+in the data line (see below).
+.TP 10
+\fB-p\fP
+Behave as if each pattern has the \fB/P\fP modifier; the POSIX wrapper API is
+used to call PCRE. None of the other options has any effect when \fB-p\fP is
+set. This option can be used only with the 8-bit library.
+.TP 10
+\fB-q\fP
+Do not output the version number of \fBpcretest\fP at the start of execution.
+.TP 10
+\fB-S\fP \fIsize\fP
+On Unix-like systems, set the size of the run-time stack to \fIsize\fP
+megabytes.
+.TP 10
+\fB-s\fP or \fB-s+\fP
+Behave as if each pattern has the \fB/S\fP modifier; in other words, force each
+pattern to be studied. If \fB-s+\fP is used, all the JIT compile options are
+passed to \fBpcre[16]_study()\fP, causing just-in-time optimization to be set
+up if it is available, for both full and partial matching. Specific JIT compile
+options can be selected by following \fB-s+\fP with a digit in the range 1 to
+7, which selects the JIT compile modes as follows:
+.sp
+  1  normal match only
+  2  soft partial match only
+  3  normal match and soft partial match
+  4  hard partial match only
+  6  soft and hard partial match
+  7  all three modes (default)
+.sp
+If \fB-s++\fP is used instead of \fB-s+\fP (with or without a following digit),
+the text "(JIT)" is added to the first output line after a match or no match
+when JIT-compiled code was actually used.
+.P
+If the \fB/I\fP or \fB/D\fP option is present on a pattern (requesting output
+about the compiled pattern), information about the result of studying is not
+included when studying is caused only by \fB-s\fP and neither \fB-i\fP nor
+\fB-d\fP is present on the command line. This behaviour means that the output
+from tests that are run with and without \fB-s\fP should be identical, except
+when options that output information about the actual running of a match are
+set.
+.sp
+The \fB-M\fP, \fB-t\fP, and \fB-tm\fP options, which give information about
+resources used, are likely to produce different output with and without
+\fB-s\fP. Output may also differ if the \fB/C\fP option is present on an
+individual pattern. This uses callouts to trace the the matching process, and
+this may be different between studied and non-studied patterns. If the pattern
+contains (*MARK) items there may also be differences, for the same reason. The
+\fB-s\fP command line option can be overridden for specific patterns that
+should never be studied (see the \fB/S\fP pattern modifier below).
+.TP 10
+\fB-t\fP
+Run each compile, study, and match many times with a timer, and output
+resulting time per compile or match (in milliseconds). Do not set \fB-m\fP with
+\fB-t\fP, because you will then get the size output a zillion times, and the
+timing will be distorted. You can control the number of iterations that are
+used for timing by following \fB-t\fP with a number (as a separate item on the
+command line). For example, "-t 1000" would iterate 1000 times. The default is
+to iterate 500000 times.
+.TP 10
+\fB-tm\fP
+This is like \fB-t\fP except that it times only the matching phase, not the
+compile or study phases.
+.
+.
+.SH DESCRIPTION
+.rs
+.sp
+If \fBpcretest\fP is given two filename arguments, it reads from the first and
+writes to the second. If it is given only one filename argument, it reads from
+that file and writes to stdout. Otherwise, it reads from stdin and writes to
+stdout, and prompts for each line of input, using "re>" to prompt for regular
+expressions, and "data>" to prompt for data lines.
+.P
+When \fBpcretest\fP is built, a configuration option can specify that it should
+be linked with the \fBlibreadline\fP library. When this is done, if the input
+is from a terminal, it is read using the \fBreadline()\fP function. This
+provides line-editing and history facilities. The output from the \fB-help\fP
+option states whether or not \fBreadline()\fP will be used.
+.P
+The program handles any number of sets of input on a single input file. Each
+set starts with a regular expression, and continues with any number of data
+lines to be matched against the pattern.
+.P
+Each data line is matched separately and independently. If you want to do
+multi-line matches, you have to use the \en escape sequence (or \er or \er\en,
+etc., depending on the newline setting) in a single line of input to encode the
+newline sequences. There is no limit on the length of data lines; the input
+buffer is automatically extended if it is too small.
+.P
+An empty line signals the end of the data lines, at which point a new regular
+expression is read. The regular expressions are given enclosed in any
+non-alphanumeric delimiters other than backslash, for example:
+.sp
+  /(a|bc)x+yz/
+.sp
+White space before the initial delimiter is ignored. A regular expression may
+be continued over several input lines, in which case the newline characters are
+included within it. It is possible to include the delimiter within the pattern
+by escaping it, for example
+.sp
+  /abc\e/def/
+.sp
+If you do so, the escape and the delimiter form part of the pattern, but since
+delimiters are always non-alphanumeric, this does not affect its interpretation.
+If the terminating delimiter is immediately followed by a backslash, for
+example,
+.sp
+  /abc/\e
+.sp
+then a backslash is added to the end of the pattern. This is done to provide a
+way of testing the error condition that arises if a pattern finishes with a
+backslash, because
+.sp
+  /abc\e/
+.sp
+is interpreted as the first line of a pattern that starts with "abc/", causing
+pcretest to read the next line as a continuation of the regular expression.
+.
+.
+.SH "PATTERN MODIFIERS"
+.rs
+.sp
+A pattern may be followed by any number of modifiers, which are mostly single
+characters. Following Perl usage, these are referred to below as, for example,
+"the \fB/i\fP modifier", even though the delimiter of the pattern need not
+always be a slash, and no slash is used when writing modifiers. White space may
+appear between the final pattern delimiter and the first modifier, and between
+the modifiers themselves.
+.P
+The \fB/i\fP, \fB/m\fP, \fB/s\fP, and \fB/x\fP modifiers set the PCRE_CASELESS,
+PCRE_MULTILINE, PCRE_DOTALL, or PCRE_EXTENDED options, respectively, when
+\fBpcre[16]_compile()\fP is called. These four modifier letters have the same
+effect as they do in Perl. For example:
+.sp
+  /caseless/i
+.sp
+The following table shows additional modifiers for setting PCRE compile-time
+options that do not correspond to anything in Perl:
+.sp
+  \fB/8\fP              PCRE_UTF8           ) when using the 8-bit
+  \fB/?\fP              PCRE_NO_UTF8_CHECK  )   library
+.sp
+  \fB/8\fP              PCRE_UTF16          ) when using the 16-bit
+  \fB/?\fP              PCRE_NO_UTF16_CHECK )   library
+.sp
+  \fB/A\fP              PCRE_ANCHORED
+  \fB/C\fP              PCRE_AUTO_CALLOUT
+  \fB/E\fP              PCRE_DOLLAR_ENDONLY
+  \fB/f\fP              PCRE_FIRSTLINE
+  \fB/J\fP              PCRE_DUPNAMES
+  \fB/N\fP              PCRE_NO_AUTO_CAPTURE
+  \fB/U\fP              PCRE_UNGREEDY
+  \fB/W\fP              PCRE_UCP
+  \fB/X\fP              PCRE_EXTRA
+  \fB/Y\fP              PCRE_NO_START_OPTIMIZE
+  \fB/<JS>\fP           PCRE_JAVASCRIPT_COMPAT
+  \fB/<cr>\fP           PCRE_NEWLINE_CR
+  \fB/<lf>\fP           PCRE_NEWLINE_LF
+  \fB/<crlf>\fP         PCRE_NEWLINE_CRLF
+  \fB/<anycrlf>\fP      PCRE_NEWLINE_ANYCRLF
+  \fB/<any>\fP          PCRE_NEWLINE_ANY
+  \fB/<bsr_anycrlf>\fP  PCRE_BSR_ANYCRLF
+  \fB/<bsr_unicode>\fP  PCRE_BSR_UNICODE
+.sp
+The modifiers that are enclosed in angle brackets are literal strings as shown,
+including the angle brackets, but the letters within can be in either case.
+This example sets multiline matching with CRLF as the line ending sequence:
+.sp
+  /^abc/m<CRLF>
+.sp
+As well as turning on the PCRE_UTF8/16 option, the \fB/8\fP modifier causes
+all non-printing characters in output strings to be printed using the
+\ex{hh...} notation. Otherwise, those less than 0x100 are output in hex without
+the curly brackets.
+.P
+Full details of the PCRE options are given in the
+.\" HREF
+\fBpcreapi\fP
+.\"
+documentation.
+.
+.
+.SS "Finding all matches in a string"
+.rs
+.sp
+Searching for all possible matches within each subject string can be requested
+by the \fB/g\fP or \fB/G\fP modifier. After finding a match, PCRE is called
+again to search the remainder of the subject string. The difference between
+\fB/g\fP and \fB/G\fP is that the former uses the \fIstartoffset\fP argument to
+\fBpcre[16]_exec()\fP to start searching at a new point within the entire
+string (which is in effect what Perl does), whereas the latter passes over a
+shortened substring. This makes a difference to the matching process if the
+pattern begins with a lookbehind assertion (including \eb or \eB).
+.P
+If any call to \fBpcre[16]_exec()\fP in a \fB/g\fP or \fB/G\fP sequence matches
+an empty string, the next call is done with the PCRE_NOTEMPTY_ATSTART and
+PCRE_ANCHORED flags set in order to search for another, non-empty, match at the
+same point. If this second match fails, the start offset is advanced, and the
+normal match is retried. This imitates the way Perl handles such cases when
+using the \fB/g\fP modifier or the \fBsplit()\fP function. Normally, the start
+offset is advanced by one character, but if the newline convention recognizes
+CRLF as a newline, and the current character is CR followed by LF, an advance
+of two is used.
+.
+.
+.SS "Other modifiers"
+.rs
+.sp
+There are yet more modifiers for controlling the way \fBpcretest\fP
+operates.
+.P
+The \fB/+\fP modifier requests that as well as outputting the substring that
+matched the entire pattern, \fBpcretest\fP should in addition output the
+remainder of the subject string. This is useful for tests where the subject
+contains multiple copies of the same substring. If the \fB+\fP modifier appears
+twice, the same action is taken for captured substrings. In each case the
+remainder is output on the following line with a plus character following the
+capture number. Note that this modifier must not immediately follow the /S
+modifier because /S+ and /S++ have other meanings.
+.P
+The \fB/=\fP modifier requests that the values of all potential captured
+parentheses be output after a match. By default, only those up to the highest
+one actually used in the match are output (corresponding to the return code
+from \fBpcre[16]_exec()\fP). Values in the offsets vector corresponding to
+higher numbers should be set to -1, and these are output as "<unset>". This
+modifier gives a way of checking that this is happening.
+.P
+The \fB/B\fP modifier is a debugging feature. It requests that \fBpcretest\fP
+output a representation of the compiled code after compilation. Normally this
+information contains length and offset values; however, if \fB/Z\fP is also
+present, this data is replaced by spaces. This is a special feature for use in
+the automatic test scripts; it ensures that the same output is generated for
+different internal link sizes.
+.P
+The \fB/D\fP modifier is a PCRE debugging feature, and is equivalent to
+\fB/BI\fP, that is, both the \fB/B\fP and the \fB/I\fP modifiers.
+.P
+The \fB/F\fP modifier causes \fBpcretest\fP to flip the byte order of the
+2-byte and 4-byte fields in the compiled pattern. This facility is for testing
+the feature in PCRE that allows it to execute patterns that were compiled on a
+host with a different endianness. This feature is not available when the POSIX
+interface to PCRE is being used, that is, when the \fB/P\fP pattern modifier is
+specified. See also the section about saving and reloading compiled patterns
+below.
+.P
+The \fB/I\fP modifier requests that \fBpcretest\fP output information about the
+compiled pattern (whether it is anchored, has a fixed first character, and
+so on). It does this by calling \fBpcre[16]_fullinfo()\fP after compiling a
+pattern. If the pattern is studied, the results of that are also output.
+.P
+The \fB/K\fP modifier requests \fBpcretest\fP to show names from backtracking
+control verbs that are returned from calls to \fBpcre[16]_exec()\fP. It causes
+\fBpcretest\fP to create a \fBpcre[16]_extra\fP block if one has not already
+been created by a call to \fBpcre[16]_study()\fP, and to set the
+PCRE_EXTRA_MARK flag and the \fBmark\fP field within it, every time that
+\fBpcre[16]_exec()\fP is called. If the variable that the \fBmark\fP field
+points to is non-NULL for a match, non-match, or partial match, \fBpcretest\fP
+prints the string to which it points. For a match, this is shown on a line by
+itself, tagged with "MK:". For a non-match it is added to the message.
+.P
+The \fB/L\fP modifier must be followed directly by the name of a locale, for
+example,
+.sp
+  /pattern/Lfr_FR
+.sp
+For this reason, it must be the last modifier. The given locale is set,
+\fBpcre[16]_maketables()\fP is called to build a set of character tables for
+the locale, and this is then passed to \fBpcre[16]_compile()\fP when compiling
+the regular expression. Without an \fB/L\fP (or \fB/T\fP) modifier, NULL is
+passed as the tables pointer; that is, \fB/L\fP applies only to the expression
+on which it appears.
+.P
+The \fB/M\fP modifier causes the size in bytes of the memory block used to hold
+the compiled pattern to be output. This does not include the size of the
+\fBpcre[16]\fP block; it is just the actual compiled data. If the pattern is
+successfully studied with the PCRE_STUDY_JIT_COMPILE option, the size of the
+JIT compiled code is also output.
+.P
+If the \fB/S\fP modifier appears once, it causes \fBpcre[16]_study()\fP to be
+called after the expression has been compiled, and the results used when the
+expression is matched. If \fB/S\fP appears twice, it suppresses studying, even
+if it was requested externally by the \fB-s\fP command line option. This makes
+it possible to specify that certain patterns are always studied, and others are
+never studied, independently of \fB-s\fP. This feature is used in the test
+files in a few cases where the output is different when the pattern is studied.
+.P
+If the \fB/S\fP modifier is immediately followed by a + character, the call to
+\fBpcre[16]_study()\fP is made with all the JIT study options, requesting
+just-in-time optimization support if it is available, for both normal and
+partial matching. If you want to restrict the JIT compiling modes, you can
+follow \fB/S+\fP with a digit in the range 1 to 7:
+.sp
+  1  normal match only
+  2  soft partial match only
+  3  normal match and soft partial match
+  4  hard partial match only
+  6  soft and hard partial match
+  7  all three modes (default)
+.sp
+If \fB/S++\fP is used instead of \fB/S+\fP (with or without a following digit),
+the text "(JIT)" is added to the first output line after a match or no match
+when JIT-compiled code was actually used.
+.P
+Note that there is also an independent \fB/+\fP modifier; it must not be given
+immediately after \fB/S\fP or \fB/S+\fP because this will be misinterpreted.
+.P
+If JIT studying is successful, the compiled JIT code will automatically be used
+when \fBpcre[16]_exec()\fP is run, except when incompatible run-time options
+are specified. For more details, see the
+.\" HREF
+\fBpcrejit\fP
+.\"
+documentation. See also the \fB\eJ\fP escape sequence below for a way of
+setting the size of the JIT stack.
+.P
+The \fB/T\fP modifier must be followed by a single digit. It causes a specific
+set of built-in character tables to be passed to \fBpcre[16]_compile()\fP. It
+is used in the standard PCRE tests to check behaviour with different character
+tables. The digit specifies the tables as follows:
+.sp
+  0   the default ASCII tables, as distributed in
+        pcre_chartables.c.dist
+  1   a set of tables defining ISO 8859 characters
+.sp
+In table 1, some characters whose codes are greater than 128 are identified as
+letters, digits, spaces, etc.
+.
+.
+.SS "Using the POSIX wrapper API"
+.rs
+.sp
+The \fB/P\fP modifier causes \fBpcretest\fP to call PCRE via the POSIX wrapper
+API rather than its native API. This supports only the 8-bit library. When
+\fB/P\fP is set, the following modifiers set options for the \fBregcomp()\fP
+function:
+.sp
+  /i    REG_ICASE
+  /m    REG_NEWLINE
+  /N    REG_NOSUB
+  /s    REG_DOTALL     )
+  /U    REG_UNGREEDY   ) These options are not part of
+  /W    REG_UCP        )   the POSIX standard
+  /8    REG_UTF8       )
+.sp
+The \fB/+\fP modifier works as described above. All other modifiers are
+ignored.
+.
+.
+.SH "DATA LINES"
+.rs
+.sp
+Before each data line is passed to \fBpcre[16]_exec()\fP, leading and trailing
+white space is removed, and it is then scanned for \e escapes. Some of these
+are pretty esoteric features, intended for checking out some of the more
+complicated features of PCRE. If you are just testing "ordinary" regular
+expressions, you probably don't need any of these. The following escapes are
+recognized:
+.sp
+  \ea         alarm (BEL, \ex07)
+  \eb         backspace (\ex08)
+  \ee         escape (\ex27)
+  \ef         form feed (\ex0c)
+  \en         newline (\ex0a)
+.\" JOIN
+  \eqdd       set the PCRE_MATCH_LIMIT limit to dd
+               (any number of digits)
+  \er         carriage return (\ex0d)
+  \et         tab (\ex09)
+  \ev         vertical tab (\ex0b)
+  \ennn       octal character (up to 3 octal digits); always
+               a byte unless > 255 in UTF-8 or 16-bit mode
+  \exhh       hexadecimal byte (up to 2 hex digits)
+  \ex{hh...}  hexadecimal character (any number of hex digits)
+.\" JOIN
+  \eA         pass the PCRE_ANCHORED option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \eB         pass the PCRE_NOTBOL option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \eCdd       call pcre[16]_copy_substring() for substring dd
+               after a successful match (number less than 32)
+.\" JOIN
+  \eCname     call pcre[16]_copy_named_substring() for substring
+               "name" after a successful match (name termin-
+               ated by next non alphanumeric character)
+.\" JOIN
+  \eC+        show the current captured substrings at callout
+               time
+  \eC-        do not supply a callout function
+.\" JOIN
+  \eC!n       return 1 instead of 0 when callout number n is
+               reached
+.\" JOIN
+  \eC!n!m     return 1 instead of 0 when callout number n is
+               reached for the nth time
+.\" JOIN
+  \eC*n       pass the number n (may be negative) as callout
+               data; this is used as the callout return value
+  \eD         use the \fBpcre[16]_dfa_exec()\fP match function
+  \eF         only shortest match for \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \eGdd       call pcre[16]_get_substring() for substring dd
+               after a successful match (number less than 32)
+.\" JOIN
+  \eGname     call pcre[16]_get_named_substring() for substring
+               "name" after a successful match (name termin-
+               ated by next non-alphanumeric character)
+.\" JOIN
+  \eJdd       set up a JIT stack of dd kilobytes maximum (any
+               number of digits)
+.\" JOIN
+  \eL         call pcre[16]_get_substringlist() after a
+               successful match
+.\" JOIN
+  \eM         discover the minimum MATCH_LIMIT and
+               MATCH_LIMIT_RECURSION settings
+.\" JOIN
+  \eN         pass the PCRE_NOTEMPTY option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP; if used twice, pass the
+               PCRE_NOTEMPTY_ATSTART option
+.\" JOIN
+  \eOdd       set the size of the output vector passed to
+               \fBpcre[16]_exec()\fP to dd (any number of digits)
+.\" JOIN
+  \eP         pass the PCRE_PARTIAL_SOFT option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP; if used twice, pass the
+               PCRE_PARTIAL_HARD option
+.\" JOIN
+  \eQdd       set the PCRE_MATCH_LIMIT_RECURSION limit to dd
+               (any number of digits)
+  \eR         pass the PCRE_DFA_RESTART option to \fBpcre[16]_dfa_exec()\fP
+  \eS         output details of memory get/free calls during matching
+.\" JOIN
+  \eY         pass the PCRE_NO_START_OPTIMIZE option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \eZ         pass the PCRE_NOTEOL option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \e?         pass the PCRE_NO_UTF[8|16]_CHECK option to
+               \fBpcre[16]_exec()\fP or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \e>dd       start the match at offset dd (optional "-"; then
+               any number of digits); this sets the \fIstartoffset\fP
+               argument for \fBpcre[16]_exec()\fP or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \e<cr>      pass the PCRE_NEWLINE_CR option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \e<lf>      pass the PCRE_NEWLINE_LF option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \e<crlf>    pass the PCRE_NEWLINE_CRLF option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \e<anycrlf> pass the PCRE_NEWLINE_ANYCRLF option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.\" JOIN
+  \e<any>     pass the PCRE_NEWLINE_ANY option to \fBpcre[16]_exec()\fP
+               or \fBpcre[16]_dfa_exec()\fP
+.sp
+The use of \ex{hh...} is not dependent on the use of the \fB/8\fP modifier on
+the pattern. It is recognized always. There may be any number of hexadecimal
+digits inside the braces; invalid values provoke error messages.
+.P
+Note that \exhh specifies one byte rather than one character in UTF-8 mode;
+this makes it possible to construct invalid UTF-8 sequences for testing
+purposes. On the other hand, \ex{hh} is interpreted as a UTF-8 character in
+UTF-8 mode, generating more than one byte if the value is greater than 127.
+When testing the 8-bit library not in UTF-8 mode, \ex{hh} generates one byte
+for values less than 256, and causes an error for greater values.
+.P
+In UTF-16 mode, all 4-digit \ex{hhhh} values are accepted. This makes it
+possible to construct invalid UTF-16 sequences for testing purposes.
+.P
+The escapes that specify line ending sequences are literal strings, exactly as
+shown. No more than one newline setting should be present in any data line.
+.P
+A backslash followed by anything else just escapes the anything else. If
+the very last character is a backslash, it is ignored. This gives a way of
+passing an empty line as data, since a real empty line terminates the data
+input.
+.P
+The \fB\eJ\fP escape provides a way of setting the maximum stack size that is
+used by the just-in-time optimization code. It is ignored if JIT optimization
+is not being used. Providing a stack that is larger than the default 32K is
+necessary only for very complicated patterns.
+.P
+If \eM is present, \fBpcretest\fP calls \fBpcre[16]_exec()\fP several times,
+with different values in the \fImatch_limit\fP and \fImatch_limit_recursion\fP
+fields of the \fBpcre[16]_extra\fP data structure, until it finds the minimum
+numbers for each parameter that allow \fBpcre[16]_exec()\fP to complete without
+error. Because this is testing a specific feature of the normal interpretive
+\fBpcre[16]_exec()\fP execution, the use of any JIT optimization that might
+have been set up by the \fB/S+\fP qualifier of \fB-s+\fP option is disabled.
+.P
+The \fImatch_limit\fP number is a measure of the amount of backtracking
+that takes place, and checking it out can be instructive. For most simple
+matches, the number is quite small, but for patterns with very large numbers of
+matching possibilities, it can become large very quickly with increasing length
+of subject string. The \fImatch_limit_recursion\fP number is a measure of how
+much stack (or, if PCRE is compiled with NO_RECURSE, how much heap) memory is
+needed to complete the match attempt.
+.P
+When \eO is used, the value specified may be higher or lower than the size set
+by the \fB-O\fP command line option (or defaulted to 45); \eO applies only to
+the call of \fBpcre[16]_exec()\fP for the line in which it appears.
+.P
+If the \fB/P\fP modifier was present on the pattern, causing the POSIX wrapper
+API to be used, the only option-setting sequences that have any effect are \eB,
+\eN, and \eZ, causing REG_NOTBOL, REG_NOTEMPTY, and REG_NOTEOL, respectively,
+to be passed to \fBregexec()\fP.
+.
+.
+.SH "THE ALTERNATIVE MATCHING FUNCTION"
+.rs
+.sp
+By default, \fBpcretest\fP uses the standard PCRE matching function,
+\fBpcre[16]_exec()\fP to match each data line. PCRE also supports an
+alternative matching function, \fBpcre[16]_dfa_test()\fP, which operates in a
+different way, and has some restrictions. The differences between the two
+functions are described in the
+.\" HREF
+\fBpcrematching\fP
+.\"
+documentation.
+.P
+If a data line contains the \eD escape sequence, or if the command line
+contains the \fB-dfa\fP option, the alternative matching function is used.
+This function finds all possible matches at a given point. If, however, the \eF
+escape sequence is present in the data line, it stops after the first match is
+found. This is always the shortest possible match.
+.
+.
+.SH "DEFAULT OUTPUT FROM PCRETEST"
+.rs
+.sp
+This section describes the output when the normal matching function,
+\fBpcre[16]_exec()\fP, is being used.
+.P
+When a match succeeds, \fBpcretest\fP outputs the list of captured substrings
+that \fBpcre[16]_exec()\fP returns, starting with number 0 for the string that
+matched the whole pattern. Otherwise, it outputs "No match" when the return is
+PCRE_ERROR_NOMATCH, and "Partial match:" followed by the partially matching
+substring when \fBpcre[16]_exec()\fP returns PCRE_ERROR_PARTIAL. (Note that
+this is the entire substring that was inspected during the partial match; it
+may include characters before the actual match start if a lookbehind assertion,
+\eK, \eb, or \eB was involved.) For any other return, \fBpcretest\fP outputs
+the PCRE negative error number and a short descriptive phrase. If the error is
+a failed UTF string check, the offset of the start of the failing character and
+the reason code are also output, provided that the size of the output vector is
+at least two. Here is an example of an interactive \fBpcretest\fP run.
+.sp
+  $ pcretest
+  PCRE version 8.13 2011-04-30
+.sp
+    re> /^abc(\ed+)/
+  data> abc123
+   0: abc123
+   1: 123
+  data> xyz
+  No match
+.sp
+Unset capturing substrings that are not followed by one that is set are not
+returned by \fBpcre[16]_exec()\fP, and are not shown by \fBpcretest\fP. In the
+following example, there are two capturing substrings, but when the first data
+line is matched, the second, unset substring is not shown. An "internal" unset
+substring is shown as "<unset>", as for the second data line.
+.sp
+    re> /(a)|(b)/
+  data> a
+   0: a
+   1: a
+  data> b
+   0: b
+   1: <unset>
+   2: b
+.sp
+If the strings contain any non-printing characters, they are output as \exhh
+escapes if the value is less than 256 and UTF mode is not set. Otherwise they
+are output as \ex{hh...} escapes. See below for the definition of non-printing
+characters. If the pattern has the \fB/+\fP modifier, the output for substring
+0 is followed by the the rest of the subject string, identified by "0+" like
+this:
+.sp
+    re> /cat/+
+  data> cataract
+   0: cat
+   0+ aract
+.sp
+If the pattern has the \fB/g\fP or \fB/G\fP modifier, the results of successive
+matching attempts are output in sequence, like this:
+.sp
+    re> /\eBi(\ew\ew)/g
+  data> Mississippi
+   0: iss
+   1: ss
+   0: iss
+   1: ss
+   0: ipp
+   1: pp
+.sp
+"No match" is output only if the first match attempt fails. Here is an example
+of a failure message (the offset 4 that is specified by \e>4 is past the end of
+the subject string):
+.sp
+    re> /xyz/
+  data> xyz\e>4
+  Error -24 (bad offset value)
+.P
+If any of the sequences \fB\eC\fP, \fB\eG\fP, or \fB\eL\fP are present in a
+data line that is successfully matched, the substrings extracted by the
+convenience functions are output with C, G, or L after the string number
+instead of a colon. This is in addition to the normal full list. The string
+length (that is, the return from the extraction function) is given in
+parentheses after each string for \fB\eC\fP and \fB\eG\fP.
+.P
+Note that whereas patterns can be continued over several lines (a plain ">"
+prompt is used for continuations), data lines may not. However newlines can be
+included in data by means of the \en escape (or \er, \er\en, etc., depending on
+the newline sequence setting).
+.
+.
+.
+.SH "OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION"
+.rs
+.sp
+When the alternative matching function, \fBpcre[16]_dfa_exec()\fP, is used (by
+means of the \eD escape sequence or the \fB-dfa\fP command line option), the
+output consists of a list of all the matches that start at the first point in
+the subject where there is at least one match. For example:
+.sp
+    re> /(tang|tangerine|tan)/
+  data> yellow tangerine\eD
+   0: tangerine
+   1: tang
+   2: tan
+.sp
+(Using the normal matching function on this data finds only "tang".) The
+longest matching string is always given first (and numbered zero). After a
+PCRE_ERROR_PARTIAL return, the output is "Partial match:", followed by the
+partially matching substring. (Note that this is the entire substring that was
+inspected during the partial match; it may include characters before the actual
+match start if a lookbehind assertion, \eK, \eb, or \eB was involved.)
+.P
+If \fB/g\fP is present on the pattern, the search for further matches resumes
+at the end of the longest match. For example:
+.sp
+    re> /(tang|tangerine|tan)/g
+  data> yellow tangerine and tangy sultana\eD
+   0: tangerine
+   1: tang
+   2: tan
+   0: tang
+   1: tan
+   0: tan
+.sp
+Since the matching function does not support substring capture, the escape
+sequences that are concerned with captured substrings are not relevant.
+.
+.
+.SH "RESTARTING AFTER A PARTIAL MATCH"
+.rs
+.sp
+When the alternative matching function has given the PCRE_ERROR_PARTIAL return,
+indicating that the subject partially matched the pattern, you can restart the
+match with additional subject data by means of the \eR escape sequence. For
+example:
+.sp
+    re> /^\ed?\ed(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\ed\ed$/
+  data> 23ja\eP\eD
+  Partial match: 23ja
+  data> n05\eR\eD
+   0: n05
+.sp
+For further information about partial matching, see the
+.\" HREF
+\fBpcrepartial\fP
+.\"
+documentation.
+.
+.
+.SH CALLOUTS
+.rs
+.sp
+If the pattern contains any callout requests, \fBpcretest\fP's callout function
+is called during matching. This works with both matching functions. By default,
+the called function displays the callout number, the start and current
+positions in the text at the callout time, and the next pattern item to be
+tested. For example:
+.sp
+  --->pqrabcdef
+    0    ^  ^     \ed
+.sp
+This output indicates that callout number 0 occurred for a match attempt
+starting at the fourth character of the subject string, when the pointer was at
+the seventh character of the data, and when the next pattern item was \ed. Just
+one circumflex is output if the start and current positions are the same.
+.P
+Callouts numbered 255 are assumed to be automatic callouts, inserted as a
+result of the \fB/C\fP pattern modifier. In this case, instead of showing the
+callout number, the offset in the pattern, preceded by a plus, is output. For
+example:
+.sp
+    re> /\ed?[A-E]\e*/C
+  data> E*
+  --->E*
+   +0 ^      \ed?
+   +3 ^      [A-E]
+   +8 ^^     \e*
+  +10 ^ ^
+   0: E*
+.sp
+If a pattern contains (*MARK) items, an additional line is output whenever
+a change of latest mark is passed to the callout function. For example:
+.sp
+    re> /a(*MARK:X)bc/C
+  data> abc
+  --->abc
+   +0 ^       a
+   +1 ^^      (*MARK:X)
+  +10 ^^      b
+  Latest Mark: X
+  +11 ^ ^     c
+  +12 ^  ^
+   0: abc
+.sp
+The mark changes between matching "a" and "b", but stays the same for the rest
+of the match, so nothing more is output. If, as a result of backtracking, the
+mark reverts to being unset, the text "<unset>" is output.
+.P
+The callout function in \fBpcretest\fP returns zero (carry on matching) by
+default, but you can use a \eC item in a data line (as described above) to
+change this and other parameters of the callout.
+.P
+Inserting callouts can be helpful when using \fBpcretest\fP to check
+complicated regular expressions. For further information about callouts, see
+the
+.\" HREF
+\fBpcrecallout\fP
+.\"
+documentation.
+.
+.
+.
+.SH "NON-PRINTING CHARACTERS"
+.rs
+.sp
+When \fBpcretest\fP is outputting text in the compiled version of a pattern,
+bytes other than 32-126 are always treated as non-printing characters are are
+therefore shown as hex escapes.
+.P
+When \fBpcretest\fP is outputting text that is a matched part of a subject
+string, it behaves in the same way, unless a different locale has been set for
+the pattern (using the \fB/L\fP modifier). In this case, the \fBisprint()\fP
+function to distinguish printing and non-printing characters.
+.
+.
+.
+.SH "SAVING AND RELOADING COMPILED PATTERNS"
+.rs
+.sp
+The facilities described in this section are not available when the POSIX
+interface to PCRE is being used, that is, when the \fB/P\fP pattern modifier is
+specified.
+.P
+When the POSIX interface is not in use, you can cause \fBpcretest\fP to write a
+compiled pattern to a file, by following the modifiers with > and a file name.
+For example:
+.sp
+  /pattern/im >/some/file
+.sp
+See the
+.\" HREF
+\fBpcreprecompile\fP
+.\"
+documentation for a discussion about saving and re-using compiled patterns.
+Note that if the pattern was successfully studied with JIT optimization, the
+JIT data cannot be saved.
+.P
+The data that is written is binary. The first eight bytes are the length of the
+compiled pattern data followed by the length of the optional study data, each
+written as four bytes in big-endian order (most significant byte first). If
+there is no study data (either the pattern was not studied, or studying did not
+return any data), the second length is zero. The lengths are followed by an
+exact copy of the compiled pattern. If there is additional study data, this
+(excluding any JIT data) follows immediately after the compiled pattern. After
+writing the file, \fBpcretest\fP expects to read a new pattern.
+.P
+A saved pattern can be reloaded into \fBpcretest\fP by specifying < and a file
+name instead of a pattern. The name of the file must not contain a < character,
+as otherwise \fBpcretest\fP will interpret the line as a pattern delimited by <
+characters.
+For example:
+.sp
+   re> </some/file
+  Compiled pattern loaded from /some/file
+  No study data
+.sp
+If the pattern was previously studied with the JIT optimization, the JIT
+information cannot be saved and restored, and so is lost. When the pattern has
+been loaded, \fBpcretest\fP proceeds to read data lines in the usual way.
+.P
+You can copy a file written by \fBpcretest\fP to a different host and reload it
+there, even if the new host has opposite endianness to the one on which the
+pattern was compiled. For example, you can compile on an i86 machine and run on
+a SPARC machine. When a pattern is reloaded on a host with different
+endianness, the confirmation message is changed to:
+.sp
+  Compiled pattern (byte-inverted) loaded from /some/file
+.sp
+The test suite contains some saved pre-compiled patterns with different
+endianness. These are reloaded using "<!" instead of just "<". This suppresses
+the "(byte-inverted)" text so that the output is the same on all hosts. It also
+forces debugging output once the pattern has been reloaded.
+.P
+File names for saving and reloading can be absolute or relative, but note that
+the shell facility of expanding a file name that starts with a tilde (~) is not
+available.
+.P
+The ability to save and reload files in \fBpcretest\fP is intended for testing
+and experimentation. It is not intended for production use because only a
+single pattern can be written to a file. Furthermore, there is no facility for
+supplying custom character tables for use with a reloaded pattern. If the
+original pattern was compiled with custom tables, an attempt to match a subject
+string using a reloaded pattern is likely to cause \fBpcretest\fP to crash.
+Finally, if you attempt to load a file that is not in the correct format, the
+result is undefined.
+.
+.
+.SH "SEE ALSO"
+.rs
+.sp
+\fBpcre\fP(3), \fBpcre16\fP(3), \fBpcreapi\fP(3), \fBpcrecallout\fP(3),
+\fBpcrejit\fP, \fBpcrematching\fP(3), \fBpcrepartial\fP(d),
+\fBpcrepattern\fP(3), \fBpcreprecompile\fP(3).
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 21 February 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/pcretest.txt b/8.31/doc/pcretest.txt
new file mode 100644
index 0000000..2d39fb1
--- /dev/null
+++ b/8.31/doc/pcretest.txt
@@ -0,0 +1,903 @@
+PCRETEST(1)                                                        PCRETEST(1)
+
+
+NAME
+       pcretest - a program for testing Perl-compatible regular expressions.
+
+
+SYNOPSIS
+
+       pcretest [options] [input file [output file]]
+
+       pcretest  was written as a test program for the PCRE regular expression
+       library itself, but it can also be used for experimenting with  regular
+       expressions.  This document describes the features of the test program;
+       for details of the regular expressions themselves, see the  pcrepattern
+       documentation. For details of the PCRE library function calls and their
+       options, see the  pcreapi  and  pcre16  documentation.  The  input  for
+       pcretest is a sequence of regular expression patterns and strings to be
+       matched, as described below. The output shows the result of each match.
+       Options  on  the command line and the patterns control PCRE options and
+       exactly what is output.
+
+
+PCRE's 8-BIT and 16-BIT LIBRARIES
+
+       From release 8.30, two separate PCRE libraries can be built. The origi-
+       nal  one  supports  8-bit  character  strings, whereas the newer 16-bit
+       library  supports  character  strings  encoded  in  16-bit  units.  The
+       pcretest  program  can  be  used to test both libraries. However, it is
+       itself still an 8-bit program, reading 8-bit input  and  writing  8-bit
+       output.  When testing the 16-bit library, the patterns and data strings
+       are converted to 16-bit format before being passed to the PCRE  library
+       functions. Results are converted to 8-bit for output.
+
+       References  to  functions  and structures of the form pcre[16]_xx below
+       mean "pcre_xx when using the 8-bit library or pcre16_xx when using  the
+       16-bit library".
+
+
+COMMAND LINE OPTIONS
+
+       -16       If  both  the 8-bit and the 16-bit libraries have been built,
+                 this option causes the 16-bit library to be used. If only the
+                 16-bit library has been built, this is the default (so has no
+                 effect). If only the  8-bit  library  has  been  built,  this
+                 option causes an error.
+
+       -b        Behave  as  if each pattern has the /B (show byte code) modi-
+                 fier; the internal form is output after compilation.
+
+       -C        Output the version number of the PCRE library, and all avail-
+                 able   information  about  the  optional  features  that  are
+                 included, and then exit. All other options are ignored.
+
+       -C option Output information about a specific build-time  option,  then
+                 exit.  This functionality is intended for use in scripts such
+                 as RunTest. The following options output the value indicated:
+
+                   linksize   the internal link size (2, 3, or 4)
+                   newline    the default newline setting:
+                                CR, LF, CRLF, ANYCRLF, or ANY
+
+                 The following options output 1 for true or zero for false:
+
+                   jit        just-in-time support is available
+                   pcre16     the 16-bit library was built
+                   pcre8      the 8-bit library was built
+                   ucp        Unicode property support is available
+                   utf        UTF-8 and/or UTF-16 support is available
+
+       -d        Behave as if each pattern has the /D  (debug)  modifier;  the
+                 internal  form  and information about the compiled pattern is
+                 output after compilation; -d is equivalent to -b -i.
+
+       -dfa      Behave as if each data line contains the \D escape  sequence;
+                 this    causes    the    alternative    matching    function,
+                 pcre[16]_dfa_exec(), to  be  used  instead  of  the  standard
+                 pcre[16]_exec() function (more detail is given below).
+
+       -help     Output a brief summary these options and then exit.
+
+       -i        Behave  as  if  each pattern has the /I modifier; information
+                 about the compiled pattern is given after compilation.
+
+       -M        Behave as if each data line contains the \M escape  sequence;
+                 this  causes  PCRE  to  discover  the minimum MATCH_LIMIT and
+                 MATCH_LIMIT_RECURSION  settings  by  calling  pcre[16]_exec()
+                 repeatedly with different limits.
+
+       -m        Output  the  size  of each compiled pattern after it has been
+                 compiled. This is equivalent to adding  /M  to  each  regular
+                 expression. The size is given in bytes for both libraries.
+
+       -o osize  Set  the number of elements in the output vector that is used
+                 when calling pcre[16]_exec()  or  pcre[16]_dfa_exec()  to  be
+                 osize.  The  default value is 45, which is enough for 14 cap-
+                 turing subexpressions for  pcre[16]_exec()  or  22  different
+                 matches  for  pcre[16]_dfa_exec().   The  vector  size can be
+                 changed for individual matching calls by including \O in  the
+                 data line (see below).
+
+       -p        Behave  as  if  each  pattern  has the /P modifier; the POSIX
+                 wrapper API is used to call PCRE. None of the  other  options
+                 has  any  effect when -p is set. This option can be used only
+                 with the 8-bit library.
+
+       -q        Do not output the version number of pcretest at the start  of
+                 execution.
+
+       -S size   On  Unix-like  systems, set the size of the run-time stack to
+                 size megabytes.
+
+       -s or -s+ Behave as if each pattern  has  the  /S  modifier;  in  other
+                 words,  force each pattern to be studied. If -s+ is used, all
+                 the JIT compile options are passed to pcre[16]_study(), caus-
+                 ing  just-in-time  optimization  to be set up if it is avail-
+                 able, for both full and partial matching. Specific  JIT  com-
+                 pile options can be selected by following -s+ with a digit in
+                 the range 1 to 7, which selects the JIT compile modes as fol-
+                 lows:
+
+                   1  normal match only
+                   2  soft partial match only
+                   3  normal match and soft partial match
+                   4  hard partial match only
+                   6  soft and hard partial match
+                   7  all three modes (default)
+
+                 If  -s++  is used instead of -s+ (with or without a following
+                 digit), the text "(JIT)" is added to the  first  output  line
+                 after a match or no match when JIT-compiled code was actually
+                 used.
+
+       If the /I or /D option is present on a pattern (requesting output about
+       the  compiled pattern), information about the result of studying is not
+       included when studying is caused only by -s and neither -i  nor  -d  is
+       present  on the command line. This behaviour means that the output from
+       tests that are run with and without -s should be identical, except when
+       options that output information about the actual running of a match are
+       set.
+
+       The -M, -t, and -tm options, which  give  information  about  resources
+       used,  are likely to produce different output with and without -s. Out-
+       put may also differ if the /C option is present on an  individual  pat-
+       tern.  This  uses  callouts to trace the the matching process, and this
+       may be different between studied and non-studied patterns. If the  pat-
+       tern contains (*MARK) items there may also be differences, for the same
+       reason. The -s command line option can be overridden for specific  pat-
+       terns that should never be studied (see the /S pattern modifier below).
+
+       -t        Run  each  compile, study, and match many times with a timer,
+                 and output resulting time per compile or match (in  millisec-
+                 onds).  Do  not set -m with -t, because you will then get the
+                 size output a zillion times, and  the  timing  will  be  dis-
+                 torted.  You  can  control  the number of iterations that are
+                 used for timing by following -t with a number (as a  separate
+                 item on the command line). For example, "-t 1000" would iter-
+                 ate 1000 times. The default is to iterate 500000 times.
+
+       -tm       This is like -t except that it times only the matching phase,
+                 not the compile or study phases.
+
+
+DESCRIPTION
+
+       If  pcretest  is  given two filename arguments, it reads from the first
+       and writes to the second. If it is given only one filename argument, it
+       reads  from  that  file  and writes to stdout. Otherwise, it reads from
+       stdin and writes to stdout, and prompts for each line of  input,  using
+       "re>" to prompt for regular expressions, and "data>" to prompt for data
+       lines.
+
+       When pcretest is built, a configuration  option  can  specify  that  it
+       should  be  linked  with the libreadline library. When this is done, if
+       the input is from a terminal, it is read using the readline() function.
+       This  provides line-editing and history facilities. The output from the
+       -help option states whether or not readline() will be used.
+
+       The program handles any number of sets of input on a single input file.
+       Each  set starts with a regular expression, and continues with any num-
+       ber of data lines to be matched against the pattern.
+
+       Each data line is matched separately and independently. If you want  to
+       do multi-line matches, you have to use the \n escape sequence (or \r or
+       \r\n, etc., depending on the newline setting) in a single line of input
+       to  encode  the  newline  sequences. There is no limit on the length of
+       data lines; the input buffer is automatically extended  if  it  is  too
+       small.
+
+       An  empty  line signals the end of the data lines, at which point a new
+       regular expression is read. The regular expressions are given  enclosed
+       in any non-alphanumeric delimiters other than backslash, for example:
+
+         /(a|bc)x+yz/
+
+       White  space before the initial delimiter is ignored. A regular expres-
+       sion may be continued over several input lines, in which case the  new-
+       line  characters  are included within it. It is possible to include the
+       delimiter within the pattern by escaping it, for example
+
+         /abc\/def/
+
+       If you do so, the escape and the delimiter form part  of  the  pattern,
+       but  since delimiters are always non-alphanumeric, this does not affect
+       its interpretation.  If the terminating delimiter is  immediately  fol-
+       lowed by a backslash, for example,
+
+         /abc/\
+
+       then  a  backslash  is added to the end of the pattern. This is done to
+       provide a way of testing the error condition that arises if  a  pattern
+       finishes with a backslash, because
+
+         /abc\/
+
+       is  interpreted as the first line of a pattern that starts with "abc/",
+       causing pcretest to read the next line as a continuation of the regular
+       expression.
+
+
+PATTERN MODIFIERS
+
+       A  pattern may be followed by any number of modifiers, which are mostly
+       single characters. Following Perl usage, these are  referred  to  below
+       as,  for  example,  "the /i modifier", even though the delimiter of the
+       pattern need not always be a slash, and no slash is used  when  writing
+       modifiers.  White  space may appear between the final pattern delimiter
+       and the first modifier, and between the modifiers themselves.
+
+       The /i, /m, /s, and /x modifiers set the PCRE_CASELESS, PCRE_MULTILINE,
+       PCRE_DOTALL, or PCRE_EXTENDED options, respectively, when pcre[16]_com-
+       pile() is called. These four modifier letters have the same  effect  as
+       they do in Perl. For example:
+
+         /caseless/i
+
+       The  following  table  shows additional modifiers for setting PCRE com-
+       pile-time options that do not correspond to anything in Perl:
+
+         /8              PCRE_UTF8           ) when using the 8-bit
+         /?              PCRE_NO_UTF8_CHECK  )   library
+
+         /8              PCRE_UTF16          ) when using the 16-bit
+         /?              PCRE_NO_UTF16_CHECK )   library
+
+         /A              PCRE_ANCHORED
+         /C              PCRE_AUTO_CALLOUT
+         /E              PCRE_DOLLAR_ENDONLY
+         /f              PCRE_FIRSTLINE
+         /J              PCRE_DUPNAMES
+         /N              PCRE_NO_AUTO_CAPTURE
+         /U              PCRE_UNGREEDY
+         /W              PCRE_UCP
+         /X              PCRE_EXTRA
+         /Y              PCRE_NO_START_OPTIMIZE
+         /<JS>           PCRE_JAVASCRIPT_COMPAT
+         /<cr>           PCRE_NEWLINE_CR
+         /<lf>           PCRE_NEWLINE_LF
+         /<crlf>         PCRE_NEWLINE_CRLF
+         /<anycrlf>      PCRE_NEWLINE_ANYCRLF
+         /<any>          PCRE_NEWLINE_ANY
+         /<bsr_anycrlf>  PCRE_BSR_ANYCRLF
+         /<bsr_unicode>  PCRE_BSR_UNICODE
+
+       The modifiers that are enclosed in angle brackets are  literal  strings
+       as  shown,  including the angle brackets, but the letters within can be
+       in either case.  This example sets multiline matching with CRLF as  the
+       line ending sequence:
+
+         /^abc/m<CRLF>
+
+       As  well  as turning on the PCRE_UTF8/16 option, the /8 modifier causes
+       all non-printing characters in output strings to be printed  using  the
+       \x{hh...}  notation. Otherwise, those less than 0x100 are output in hex
+       without the curly brackets.
+
+       Full details of the PCRE options are given in  the  pcreapi  documenta-
+       tion.
+
+   Finding all matches in a string
+
+       Searching  for  all  possible matches within each subject string can be
+       requested by the /g or /G modifier. After  finding  a  match,  PCRE  is
+       called again to search the remainder of the subject string. The differ-
+       ence between /g and /G is that the former uses the startoffset argument
+       to  pcre[16]_exec() to start searching at a new point within the entire
+       string (which is in effect what Perl does), whereas the  latter  passes
+       over  a  shortened  substring.  This makes a difference to the matching
+       process if the pattern begins with a lookbehind assertion (including \b
+       or \B).
+
+       If  any call to pcre[16]_exec() in a /g or /G sequence matches an empty
+       string, the next  call  is  done  with  the  PCRE_NOTEMPTY_ATSTART  and
+       PCRE_ANCHORED  flags  set  in  order  to search for another, non-empty,
+       match at the same point. If this second match fails, the  start  offset
+       is  advanced,  and  the  normal match is retried. This imitates the way
+       Perl handles such cases when using the /g modifier or the split() func-
+       tion.  Normally,  the start offset is advanced by one character, but if
+       the newline convention recognizes CRLF as a newline,  and  the  current
+       character is CR followed by LF, an advance of two is used.
+
+   Other modifiers
+
+       There are yet more modifiers for controlling the way pcretest operates.
+
+       The  /+ modifier requests that as well as outputting the substring that
+       matched the entire pattern, pcretest  should  in  addition  output  the
+       remainder  of  the  subject  string. This is useful for tests where the
+       subject contains multiple copies of the same substring. If the +  modi-
+       fier  appears  twice, the same action is taken for captured substrings.
+       In each case the remainder is output on the following line with a  plus
+       character  following  the  capture number. Note that this modifier must
+       not immediately follow the /S modifier because /S+ and /S++ have  other
+       meanings.
+
+       The  /=  modifier  requests  that  the values of all potential captured
+       parentheses be output after a match. By default, only those up  to  the
+       highest one actually used in the match are output (corresponding to the
+       return code from pcre[16]_exec()). Values in the offsets vector  corre-
+       sponding to higher numbers should be set to -1, and these are output as
+       "<unset>". This modifier gives a way of checking that this  is  happen-
+       ing.
+
+       The  /B modifier is a debugging feature. It requests that pcretest out-
+       put a representation of the compiled code after  compilation.  Normally
+       this  information  contains length and offset values; however, if /Z is
+       also present, this data is replaced by spaces. This is a  special  fea-
+       ture  for  use  in the automatic test scripts; it ensures that the same
+       output is generated for different internal link sizes.
+
+       The /D modifier is a PCRE debugging feature, and is equivalent to  /BI,
+       that is, both the /B and the /I modifiers.
+
+       The  /F  modifier  causes pcretest to flip the byte order of the 2-byte
+       and 4-byte fields in the compiled pattern. This facility is for testing
+       the  feature  in PCRE that allows it to execute patterns that were com-
+       piled on a host with a different endianness. This feature is not avail-
+       able  when the POSIX interface to PCRE is being used, that is, when the
+       /P pattern modifier is specified. See also the section about saving and
+       reloading compiled patterns below.
+
+       The  /I  modifier  requests  that pcretest output information about the
+       compiled pattern (whether it is anchored, has a fixed first  character,
+       and so on). It does this by calling pcre[16]_fullinfo() after compiling
+       a pattern. If the pattern is studied, the results of that are also out-
+       put.
+
+       The  /K modifier requests pcretest to show names from backtracking con-
+       trol verbs that are returned from calls to pcre[16]_exec().  It  causes
+       pcretest  to  create a pcre[16]_extra block if one has not already been
+       created by a call to pcre[16]_study(), and to set  the  PCRE_EXTRA_MARK
+       flag  and  the mark field within it, every time that pcre[16]_exec() is
+       called. If the variable that the mark field points to is non-NULL for a
+       match, non-match, or partial match, pcretest prints the string to which
+       it points. For a match, this is shown on a line by itself, tagged  with
+       "MK:". For a non-match it is added to the message.
+
+       The  /L modifier must be followed directly by the name of a locale, for
+       example,
+
+         /pattern/Lfr_FR
+
+       For this reason, it must be the last modifier. The given locale is set,
+       pcre[16]_maketables()  is called to build a set of character tables for
+       the locale, and this is then passed to pcre[16]_compile() when  compil-
+       ing  the  regular  expression.  Without an /L (or /T) modifier, NULL is
+       passed as the tables pointer; that is, /L applies only to  the  expres-
+       sion on which it appears.
+
+       The  /M  modifier  causes the size in bytes of the memory block used to
+       hold the compiled pattern to be output. This does not include the  size
+       of the pcre[16] block; it is just the actual compiled data. If the pat-
+       tern is successfully studied with  the  PCRE_STUDY_JIT_COMPILE  option,
+       the size of the JIT compiled code is also output.
+
+       If  the  /S  modifier  appears  once,  it causes pcre[16]_study() to be
+       called after the expression has been compiled,  and  the  results  used
+       when  the  expression  is  matched.  If /S appears twice, it suppresses
+       studying, even if it was requested externally by the  -s  command  line
+       option.  This  makes  it  possible to specify that certain patterns are
+       always studied, and others are never studied, independently of -s. This
+       feature  is  used  in the test files in a few cases where the output is
+       different when the pattern is studied.
+
+       If the /S modifier is immediately followed by a + character,  the  call
+       to  pcre[16]_study() is made with all the JIT study options, requesting
+       just-in-time optimization support if it is available, for  both  normal
+       and  partial matching. If you want to restrict the JIT compiling modes,
+       you can follow /S+ with a digit in the range 1 to 7:
+
+         1  normal match only
+         2  soft partial match only
+         3  normal match and soft partial match
+         4  hard partial match only
+         6  soft and hard partial match
+         7  all three modes (default)
+
+       If /S++ is used instead of /S+ (with or without a following digit), the
+       text  "(JIT)"  is  added  to  the first output line after a match or no
+       match when JIT-compiled code was actually used.
+
+       Note that there is also an independent /+  modifier;  it  must  not  be
+       given immediately after /S or /S+ because this will be misinterpreted.
+
+       If JIT studying is successful, the compiled JIT code will automatically
+       be used when pcre[16]_exec() is run, except when incompatible  run-time
+       options are specified. For more details, see the pcrejit documentation.
+       See also the \J escape sequence below for a way of setting the size  of
+       the JIT stack.
+
+       The  /T  modifier  must be followed by a single digit. It causes a spe-
+       cific set of built-in character tables to be  passed  to  pcre[16]_com-
+       pile().  It  is used in the standard PCRE tests to check behaviour with
+       different character tables. The digit specifies the tables as follows:
+
+         0   the default ASCII tables, as distributed in
+               pcre_chartables.c.dist
+         1   a set of tables defining ISO 8859 characters
+
+       In table 1, some characters whose codes are greater than 128 are  iden-
+       tified as letters, digits, spaces, etc.
+
+   Using the POSIX wrapper API
+
+       The  /P modifier causes pcretest to call PCRE via the POSIX wrapper API
+       rather than its native API. This supports only the 8-bit library.  When
+       /P  is set, the following modifiers set options for the regcomp() func-
+       tion:
+
+         /i    REG_ICASE
+         /m    REG_NEWLINE
+         /N    REG_NOSUB
+         /s    REG_DOTALL     )
+         /U    REG_UNGREEDY   ) These options are not part of
+         /W    REG_UCP        )   the POSIX standard
+         /8    REG_UTF8       )
+
+       The /+ modifier works as  described  above.  All  other  modifiers  are
+       ignored.
+
+
+DATA LINES
+
+       Before  each data line is passed to pcre[16]_exec(), leading and trail-
+       ing white space is removed, and it is then scanned for \ escapes.  Some
+       of  these  are pretty esoteric features, intended for checking out some
+       of the more complicated features of  PCRE.  If  you  are  just  testing
+       "ordinary"  regular  expressions, you probably don't need any of these.
+       The following escapes are recognized:
+
+         \a         alarm (BEL, \x07)
+         \b         backspace (\x08)
+         \e         escape (\x27)
+         \f         form feed (\x0c)
+         \n         newline (\x0a)
+         \qdd       set the PCRE_MATCH_LIMIT limit to dd
+                      (any number of digits)
+         \r         carriage return (\x0d)
+         \t         tab (\x09)
+         \v         vertical tab (\x0b)
+         \nnn       octal character (up to 3 octal digits); always
+                      a byte unless > 255 in UTF-8 or 16-bit mode
+         \xhh       hexadecimal byte (up to 2 hex digits)
+         \x{hh...}  hexadecimal character (any number of hex digits)
+         \A         pass the PCRE_ANCHORED option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+         \B         pass the PCRE_NOTBOL option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+         \Cdd       call pcre[16]_copy_substring() for substring dd
+                      after a successful match (number less than 32)
+         \Cname     call pcre[16]_copy_named_substring() for substring
+                      "name" after a successful match (name termin-
+                      ated by next non alphanumeric character)
+         \C+        show the current captured substrings at callout
+                      time
+         \C-        do not supply a callout function
+         \C!n       return 1 instead of 0 when callout number n is
+                      reached
+         \C!n!m     return 1 instead of 0 when callout number n is
+                      reached for the nth time
+         \C*n       pass the number n (may be negative) as callout
+                      data; this is used as the callout return value
+         \D         use the pcre[16]_dfa_exec() match function
+         \F         only shortest match for pcre[16]_dfa_exec()
+         \Gdd       call pcre[16]_get_substring() for substring dd
+                      after a successful match (number less than 32)
+         \Gname     call pcre[16]_get_named_substring() for substring
+                      "name" after a successful match (name termin-
+                      ated by next non-alphanumeric character)
+         \Jdd       set up a JIT stack of dd kilobytes maximum (any
+                      number of digits)
+         \L         call pcre[16]_get_substringlist() after a
+                      successful match
+         \M         discover the minimum MATCH_LIMIT and
+                      MATCH_LIMIT_RECURSION settings
+         \N         pass the PCRE_NOTEMPTY option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec(); if used twice, pass the
+                      PCRE_NOTEMPTY_ATSTART option
+         \Odd       set the size of the output vector passed to
+                      pcre[16]_exec() to dd (any number of digits)
+         \P         pass the PCRE_PARTIAL_SOFT option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec(); if used twice, pass the
+                      PCRE_PARTIAL_HARD option
+         \Qdd       set the PCRE_MATCH_LIMIT_RECURSION limit to dd
+                      (any number of digits)
+         \R         pass the PCRE_DFA_RESTART option to pcre[16]_dfa_exec()
+         \S         output details of memory get/free calls during matching
+         \Y         pass the PCRE_NO_START_OPTIMIZE option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+         \Z         pass the PCRE_NOTEOL option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+         \?         pass the PCRE_NO_UTF[8|16]_CHECK option to
+                      pcre[16]_exec() or pcre[16]_dfa_exec()
+         \>dd       start the match at offset dd (optional "-"; then
+                      any number of digits); this sets the startoffset
+                      argument for pcre[16]_exec() or pcre[16]_dfa_exec()
+         \<cr>      pass the PCRE_NEWLINE_CR option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+         \<lf>      pass the PCRE_NEWLINE_LF option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+         \<crlf>    pass the PCRE_NEWLINE_CRLF option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+         \<anycrlf> pass the PCRE_NEWLINE_ANYCRLF option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+         \<any>     pass the PCRE_NEWLINE_ANY option to pcre[16]_exec()
+                      or pcre[16]_dfa_exec()
+
+       The use of \x{hh...} is not dependent on the use of the /8 modifier  on
+       the  pattern. It is recognized always. There may be any number of hexa-
+       decimal digits inside the braces; invalid  values  provoke  error  mes-
+       sages.
+
+       Note  that  \xhh  specifies one byte rather than one character in UTF-8
+       mode; this makes it possible to construct invalid UTF-8  sequences  for
+       testing  purposes.  On the other hand, \x{hh} is interpreted as a UTF-8
+       character in UTF-8 mode, generating more than one byte if the value  is
+       greater  than  127.   When testing the 8-bit library not in UTF-8 mode,
+       \x{hh} generates one byte for values less than 256, and causes an error
+       for greater values.
+
+       In UTF-16 mode, all 4-digit \x{hhhh} values are accepted. This makes it
+       possible to construct invalid UTF-16 sequences for testing purposes.
+
+       The escapes that specify line ending  sequences  are  literal  strings,
+       exactly as shown. No more than one newline setting should be present in
+       any data line.
+
+       A backslash followed by anything else just escapes the  anything  else.
+       If  the very last character is a backslash, it is ignored. This gives a
+       way of passing an empty line as data, since a real  empty  line  termi-
+       nates the data input.
+
+       The  \J escape provides a way of setting the maximum stack size that is
+       used by the just-in-time optimization code. It is ignored if JIT  opti-
+       mization  is  not being used. Providing a stack that is larger than the
+       default 32K is necessary only for very complicated patterns.
+
+       If \M is present, pcretest calls pcre[16]_exec()  several  times,  with
+       different values in the match_limit and match_limit_recursion fields of
+       the pcre[16]_extra data structure, until it finds the  minimum  numbers
+       for  each  parameter  that  allow  pcre[16]_exec()  to complete without
+       error. Because this is testing a specific feature of the normal  inter-
+       pretive pcre[16]_exec() execution, the use of any JIT optimization that
+       might have been set up by the /S+ qualifier of -s+ option is disabled.
+
+       The match_limit number is a measure of the amount of backtracking  that
+       takes  place,  and  checking it out can be instructive. For most simple
+       matches, the number is quite small, but for patterns  with  very  large
+       numbers  of  matching  possibilities,  it can become large very quickly
+       with increasing length of  subject  string.  The  match_limit_recursion
+       number  is  a  measure  of how much stack (or, if PCRE is compiled with
+       NO_RECURSE, how much heap) memory  is  needed  to  complete  the  match
+       attempt.
+
+       When  \O  is  used, the value specified may be higher or lower than the
+       size set by the -O command line option (or defaulted to 45); \O applies
+       only to the call of pcre[16]_exec() for the line in which it appears.
+
+       If  the /P modifier was present on the pattern, causing the POSIX wrap-
+       per API to be used, the only option-setting  sequences  that  have  any
+       effect  are  \B,  \N,  and  \Z,  causing  REG_NOTBOL, REG_NOTEMPTY, and
+       REG_NOTEOL, respectively, to be passed to regexec().
+
+
+THE ALTERNATIVE MATCHING FUNCTION
+
+       By  default,  pcretest  uses  the  standard  PCRE  matching   function,
+       pcre[16]_exec() to match each data line. PCRE also supports an alterna-
+       tive matching function, pcre[16]_dfa_test(), which operates in  a  dif-
+       ferent  way, and has some restrictions. The differences between the two
+       functions are described in the pcrematching documentation.
+
+       If a data line contains the \D escape sequence, or if the command  line
+       contains  the  -dfa  option, the alternative matching function is used.
+       This function finds all possible matches at a given point. If, however,
+       the  \F escape sequence is present in the data line, it stops after the
+       first match is found. This is always the shortest possible match.
+
+
+DEFAULT OUTPUT FROM PCRETEST
+
+       This section describes the output when the  normal  matching  function,
+       pcre[16]_exec(), is being used.
+
+       When a match succeeds, pcretest outputs the list of captured substrings
+       that pcre[16]_exec() returns, starting with number  0  for  the  string
+       that  matched  the whole pattern. Otherwise, it outputs "No match" when
+       the return is PCRE_ERROR_NOMATCH, and "Partial match:" followed by  the
+       partially    matching    substring    when    pcre[16]_exec()   returns
+       PCRE_ERROR_PARTIAL. (Note that this is the entire  substring  that  was
+       inspected  during  the  partial match; it may include characters before
+       the actual match start if a lookbehind assertion, \K,  \b,  or  \B  was
+       involved.)  For  any  other  return, pcretest outputs the PCRE negative
+       error number and a short descriptive phrase. If the error is  a  failed
+       UTF  string check, the offset of the start of the failing character and
+       the reason code are also output, provided that the size of  the  output
+       vector  is  at least two. Here is an example of an interactive pcretest
+       run.
+
+         $ pcretest
+         PCRE version 8.13 2011-04-30
+
+           re> /^abc(\d+)/
+         data> abc123
+          0: abc123
+          1: 123
+         data> xyz
+         No match
+
+       Unset capturing substrings that are not followed by one that is set are
+       not  returned by pcre[16]_exec(), and are not shown by pcretest. In the
+       following example, there are two capturing  substrings,  but  when  the
+       first  data  line is matched, the second, unset substring is not shown.
+       An "internal" unset substring is shown as "<unset>", as for the  second
+       data line.
+
+           re> /(a)|(b)/
+         data> a
+          0: a
+          1: a
+         data> b
+          0: b
+          1: <unset>
+          2: b
+
+       If  the strings contain any non-printing characters, they are output as
+       \xhh escapes if the value is less than 256 and UTF  mode  is  not  set.
+       Otherwise they are output as \x{hh...} escapes. See below for the defi-
+       nition of non-printing characters. If the pattern has the /+  modifier,
+       the  output  for substring 0 is followed by the the rest of the subject
+       string, identified by "0+" like this:
+
+           re> /cat/+
+         data> cataract
+          0: cat
+          0+ aract
+
+       If the pattern has the /g or /G modifier,  the  results  of  successive
+       matching attempts are output in sequence, like this:
+
+           re> /\Bi(\w\w)/g
+         data> Mississippi
+          0: iss
+          1: ss
+          0: iss
+          1: ss
+          0: ipp
+          1: pp
+
+       "No  match" is output only if the first match attempt fails. Here is an
+       example of a failure message (the offset 4 that is specified by \>4  is
+       past the end of the subject string):
+
+           re> /xyz/
+         data> xyz\>4
+         Error -24 (bad offset value)
+
+       If  any  of the sequences \C, \G, or \L are present in a data line that
+       is successfully matched, the substrings extracted  by  the  convenience
+       functions are output with C, G, or L after the string number instead of
+       a colon. This is in addition to the normal full list. The string length
+       (that  is,  the return from the extraction function) is given in paren-
+       theses after each string for \C and \G.
+
+       Note that whereas patterns can be continued over several lines (a plain
+       ">" prompt is used for continuations), data lines may not. However new-
+       lines can be included in data by means of the \n escape (or  \r,  \r\n,
+       etc., depending on the newline sequence setting).
+
+
+OUTPUT FROM THE ALTERNATIVE MATCHING FUNCTION
+
+       When  the  alternative  matching function, pcre[16]_dfa_exec(), is used
+       (by means of the \D escape sequence or the -dfa command  line  option),
+       the  output  consists  of  a  list of all the matches that start at the
+       first point in the subject where there is at least one match. For exam-
+       ple:
+
+           re> /(tang|tangerine|tan)/
+         data> yellow tangerine\D
+          0: tangerine
+          1: tang
+          2: tan
+
+       (Using  the  normal  matching function on this data finds only "tang".)
+       The longest matching string is always given first (and numbered  zero).
+       After a PCRE_ERROR_PARTIAL return, the output is "Partial match:", fol-
+       lowed by the partially matching  substring.  (Note  that  this  is  the
+       entire  substring  that  was inspected during the partial match; it may
+       include characters before the actual match start if a lookbehind asser-
+       tion, \K, \b, or \B was involved.)
+
+       If /g is present on the pattern, the search for further matches resumes
+       at the end of the longest match. For example:
+
+           re> /(tang|tangerine|tan)/g
+         data> yellow tangerine and tangy sultana\D
+          0: tangerine
+          1: tang
+          2: tan
+          0: tang
+          1: tan
+          0: tan
+
+       Since the matching function does not  support  substring  capture,  the
+       escape  sequences  that  are concerned with captured substrings are not
+       relevant.
+
+
+RESTARTING AFTER A PARTIAL MATCH
+
+       When the alternative matching function has given the PCRE_ERROR_PARTIAL
+       return,  indicating that the subject partially matched the pattern, you
+       can restart the match with additional subject data by means of  the  \R
+       escape sequence. For example:
+
+           re> /^\d?\d(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)\d\d$/
+         data> 23ja\P\D
+         Partial match: 23ja
+         data> n05\R\D
+          0: n05
+
+       For  further  information  about  partial matching, see the pcrepartial
+       documentation.
+
+
+CALLOUTS
+
+       If the pattern contains any callout requests, pcretest's callout  func-
+       tion  is  called  during  matching. This works with both matching func-
+       tions. By default, the called function displays the callout number, the
+       start  and  current  positions in the text at the callout time, and the
+       next pattern item to be tested. For example:
+
+         --->pqrabcdef
+           0    ^  ^     \d
+
+       This output indicates that  callout  number  0  occurred  for  a  match
+       attempt  starting  at  the fourth character of the subject string, when
+       the pointer was at the seventh character of the data, and when the next
+       pattern  item  was  \d.  Just one circumflex is output if the start and
+       current positions are the same.
+
+       Callouts numbered 255 are assumed to be automatic callouts, inserted as
+       a  result  of the /C pattern modifier. In this case, instead of showing
+       the callout number, the offset in the pattern, preceded by a  plus,  is
+       output. For example:
+
+           re> /\d?[A-E]\*/C
+         data> E*
+         --->E*
+          +0 ^      \d?
+          +3 ^      [A-E]
+          +8 ^^     \*
+         +10 ^ ^
+          0: E*
+
+       If a pattern contains (*MARK) items, an additional line is output when-
+       ever a change of latest mark is passed to  the  callout  function.  For
+       example:
+
+           re> /a(*MARK:X)bc/C
+         data> abc
+         --->abc
+          +0 ^       a
+          +1 ^^      (*MARK:X)
+         +10 ^^      b
+         Latest Mark: X
+         +11 ^ ^     c
+         +12 ^  ^
+          0: abc
+
+       The  mark  changes between matching "a" and "b", but stays the same for
+       the rest of the match, so nothing more is output. If, as  a  result  of
+       backtracking,  the  mark  reverts to being unset, the text "<unset>" is
+       output.
+
+       The callout function in pcretest returns zero (carry  on  matching)  by
+       default,  but you can use a \C item in a data line (as described above)
+       to change this and other parameters of the callout.
+
+       Inserting callouts can be helpful when using pcretest to check  compli-
+       cated  regular expressions. For further information about callouts, see
+       the pcrecallout documentation.
+
+
+NON-PRINTING CHARACTERS
+
+       When pcretest is outputting text in the compiled version of a  pattern,
+       bytes  other  than 32-126 are always treated as non-printing characters
+       are are therefore shown as hex escapes.
+
+       When pcretest is outputting text that is a matched part  of  a  subject
+       string,  it behaves in the same way, unless a different locale has been
+       set for the  pattern  (using  the  /L  modifier).  In  this  case,  the
+       isprint() function to distinguish printing and non-printing characters.
+
+
+SAVING AND RELOADING COMPILED PATTERNS
+
+       The  facilities  described  in  this section are not available when the
+       POSIX interface to PCRE is being used, that is,  when  the  /P  pattern
+       modifier is specified.
+
+       When the POSIX interface is not in use, you can cause pcretest to write
+       a compiled pattern to a file, by following the modifiers with >  and  a
+       file name.  For example:
+
+         /pattern/im >/some/file
+
+       See  the pcreprecompile documentation for a discussion about saving and
+       re-using compiled patterns.  Note that if the pattern was  successfully
+       studied with JIT optimization, the JIT data cannot be saved.
+
+       The  data  that  is  written  is  binary. The first eight bytes are the
+       length of the compiled pattern data  followed  by  the  length  of  the
+       optional  study  data,  each  written as four bytes in big-endian order
+       (most significant byte first). If there is no study  data  (either  the
+       pattern was not studied, or studying did not return any data), the sec-
+       ond length is zero. The lengths are followed by an exact  copy  of  the
+       compiled  pattern.  If  there is additional study data, this (excluding
+       any JIT data) follows immediately after  the  compiled  pattern.  After
+       writing the file, pcretest expects to read a new pattern.
+
+       A  saved  pattern  can  be reloaded into pcretest by specifying < and a
+       file name instead of a pattern. The name of the file must not contain a
+       < character, as otherwise pcretest will interpret the line as a pattern
+       delimited by < characters.  For example:
+
+          re> </some/file
+         Compiled pattern loaded from /some/file
+         No study data
+
+       If the pattern was previously studied with the  JIT  optimization,  the
+       JIT  information cannot be saved and restored, and so is lost. When the
+       pattern has been loaded, pcretest proceeds to read data  lines  in  the
+       usual way.
+
+       You  can copy a file written by pcretest to a different host and reload
+       it there, even if the new host has opposite endianness to  the  one  on
+       which  the pattern was compiled. For example, you can compile on an i86
+       machine and run on a SPARC machine. When a pattern  is  reloaded  on  a
+       host with different endianness, the confirmation message is changed to:
+
+         Compiled pattern (byte-inverted) loaded from /some/file
+
+       The test suite contains some saved pre-compiled patterns with different
+       endianness. These are reloaded using "<!" instead  of  just  "<".  This
+       suppresses the "(byte-inverted)" text so that the output is the same on
+       all hosts. It also forces debugging output once the  pattern  has  been
+       reloaded.
+
+       File  names  for  saving and reloading can be absolute or relative, but
+       note that the shell facility of expanding a file name that starts  with
+       a tilde (~) is not available.
+
+       The  ability to save and reload files in pcretest is intended for test-
+       ing and experimentation. It is not intended for production use  because
+       only  a  single pattern can be written to a file. Furthermore, there is
+       no facility for supplying  custom  character  tables  for  use  with  a
+       reloaded  pattern.  If  the  original  pattern was compiled with custom
+       tables, an attempt to match a subject string using a  reloaded  pattern
+       is  likely to cause pcretest to crash.  Finally, if you attempt to load
+       a file that is not in the correct format, the result is undefined.
+
+
+SEE ALSO
+
+       pcre(3), pcre16(3),  pcreapi(3),  pcrecallout(3),  pcrejit,  pcrematch-
+       ing(3), pcrepartial(d), pcrepattern(3), pcreprecompile(3).
+
+
+AUTHOR
+
+       Philip Hazel
+       University Computing Service
+       Cambridge CB2 3QH, England.
+
+
+REVISION
+
+       Last updated: 21 February 2012
+       Copyright (c) 1997-2012 University of Cambridge.
diff --git a/8.31/doc/pcreunicode.3 b/8.31/doc/pcreunicode.3
new file mode 100644
index 0000000..e8dc80e
--- /dev/null
+++ b/8.31/doc/pcreunicode.3
@@ -0,0 +1,225 @@
+.TH PCREUNICODE 3 "14 April 2012" "PCRE 8.30"
+.SH NAME
+PCRE - Perl-compatible regular expressions
+.SH "UTF-8, UTF-16, AND UNICODE PROPERTY SUPPORT"
+.rs
+.sp
+From Release 8.30, in addition to its previous UTF-8 support, PCRE also
+supports UTF-16 by means of a separate 16-bit library. This can be built as
+well as, or instead of, the 8-bit library.
+.
+.
+.SH "UTF-8 SUPPORT"
+.rs
+.sp
+In order process UTF-8 strings, you must build PCRE's 8-bit library with UTF
+support, and, in addition, you must call
+.\" HREF
+\fBpcre_compile()\fP
+.\"
+with the PCRE_UTF8 option flag, or the pattern must start with the sequence
+(*UTF8). When either of these is the case, both the pattern and any subject
+strings that are matched against it are treated as UTF-8 strings instead of
+strings of 1-byte characters.
+.
+.
+.SH "UTF-16 SUPPORT"
+.rs
+.sp
+In order process UTF-16 strings, you must build PCRE's 16-bit library with UTF
+support, and, in addition, you must call
+.\" HTML <a href="pcre_compile.html">
+.\" </a>
+\fBpcre16_compile()\fP
+.\"
+with the PCRE_UTF16 option flag, or the pattern must start with the sequence
+(*UTF16). When either of these is the case, both the pattern and any subject
+strings that are matched against it are treated as UTF-16 strings instead of
+strings of 16-bit characters.
+.
+.
+.SH "UTF SUPPORT OVERHEAD"
+.rs
+.sp
+If you compile PCRE with UTF support, but do not use it at run time, the
+library will be a bit bigger, but the additional run time overhead is limited
+to testing the PCRE_UTF8/16 flag occasionally, so should not be very big.
+.
+.
+.SH "UNICODE PROPERTY SUPPORT"
+.rs
+.sp
+If PCRE is built with Unicode character property support (which implies UTF
+support), the escape sequences \ep{..}, \eP{..}, and \eX can be used.
+The available properties that can be tested are limited to the general
+category properties such as Lu for an upper case letter or Nd for a decimal
+number, the Unicode script names such as Arabic or Han, and the derived
+properties Any and L&. A full list is given in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation. Only the short names for properties are supported. For example,
+\ep{L} matches a letter. Its Perl synonym, \ep{Letter}, is not supported.
+Furthermore, in Perl, many properties may optionally be prefixed by "Is", for
+compatibility with Perl 5.6. PCRE does not support this.
+.
+.
+.\" HTML <a name="utf8strings"></a>
+.SS "Validity of UTF-8 strings"
+.rs
+.sp
+When you set the PCRE_UTF8 flag, the byte strings passed as patterns and
+subjects are (by default) checked for validity on entry to the relevant
+functions. The entire string is checked before any other processing takes
+place. From release 7.3 of PCRE, the check is according the rules of RFC 3629,
+which are themselves derived from the Unicode specification. Earlier releases
+of PCRE followed the rules of RFC 2279, which allows the full range of 31-bit
+values (0 to 0x7FFFFFFF). The current check allows only values in the range U+0
+to U+10FFFF, excluding U+D800 to U+DFFF.
+.P
+The excluded code points are the "Surrogate Area" of Unicode. They are reserved
+for use by UTF-16, where they are used in pairs to encode codepoints with
+values greater than 0xFFFF. The code points that are encoded by UTF-16 pairs
+are available independently in the UTF-8 encoding. (In other words, the whole
+surrogate thing is a fudge for UTF-16 which unfortunately messes up UTF-8.)
+.P
+If an invalid UTF-8 string is passed to PCRE, an error return is given. At
+compile time, the only additional information is the offset to the first byte
+of the failing character. The run-time functions \fBpcre_exec()\fP and
+\fBpcre_dfa_exec()\fP also pass back this information, as well as a more
+detailed reason code if the caller has provided memory in which to do this.
+.P
+In some situations, you may already know that your strings are valid, and
+therefore want to skip these checks in order to improve performance, for
+example in the case of a long subject string that is being scanned repeatedly
+with different patterns. If you set the PCRE_NO_UTF8_CHECK flag at compile time
+or at run time, PCRE assumes that the pattern or subject it is given
+(respectively) contains only valid UTF-8 codes. In this case, it does not
+diagnose an invalid UTF-8 string.
+.P
+If you pass an invalid UTF-8 string when PCRE_NO_UTF8_CHECK is set, what
+happens depends on why the string is invalid. If the string conforms to the
+"old" definition of UTF-8 (RFC 2279), it is processed as a string of characters
+in the range 0 to 0x7FFFFFFF by \fBpcre_dfa_exec()\fP and the interpreted
+version of \fBpcre_exec()\fP. In other words, apart from the initial validity
+test, these functions (when in UTF-8 mode) handle strings according to the more
+liberal rules of RFC 2279. However, the just-in-time (JIT) optimization for
+\fBpcre_exec()\fP supports only RFC 3629. If you are using JIT optimization, or
+if the string does not even conform to RFC 2279, the result is undefined. Your
+program may crash.
+.P
+If you want to process strings of values in the full range 0 to 0x7FFFFFFF,
+encoded in a UTF-8-like manner as per the old RFC, you can set
+PCRE_NO_UTF8_CHECK to bypass the more restrictive test. However, in this
+situation, you will have to apply your own validity check, and avoid the use of
+JIT optimization.
+.
+.
+.\" HTML <a name="utf16strings"></a>
+.SS "Validity of UTF-16 strings"
+.rs
+.sp
+When you set the PCRE_UTF16 flag, the strings of 16-bit data units that are
+passed as patterns and subjects are (by default) checked for validity on entry
+to the relevant functions. Values other than those in the surrogate range
+U+D800 to U+DFFF are independent code points. Values in the surrogate range
+must be used in pairs in the correct manner.
+.P
+If an invalid UTF-16 string is passed to PCRE, an error return is given. At
+compile time, the only additional information is the offset to the first data
+unit of the failing character. The run-time functions \fBpcre16_exec()\fP and
+\fBpcre16_dfa_exec()\fP also pass back this information, as well as a more
+detailed reason code if the caller has provided memory in which to do this.
+.P
+In some situations, you may already know that your strings are valid, and
+therefore want to skip these checks in order to improve performance. If you set
+the PCRE_NO_UTF16_CHECK flag at compile time or at run time, PCRE assumes that
+the pattern or subject it is given (respectively) contains only valid UTF-16
+sequences. In this case, it does not diagnose an invalid UTF-16 string.
+.
+.
+.SS "General comments about UTF modes"
+.rs
+.sp
+1. Codepoints less than 256 can be specified by either braced or unbraced
+hexadecimal escape sequences (for example, \ex{b3} or \exb3). Larger values
+have to use braced sequences.
+.P
+2. Octal numbers up to \e777 are recognized, and in UTF-8 mode, they match
+two-byte characters for values greater than \e177.
+.P
+3. Repeat quantifiers apply to complete UTF characters, not to individual
+data units, for example: \ex{100}{3}.
+.P
+4. The dot metacharacter matches one UTF character instead of a single data
+unit.
+.P
+5. The escape sequence \eC can be used to match a single byte in UTF-8 mode, or
+a single 16-bit data unit in UTF-16 mode, but its use can lead to some strange
+effects because it breaks up multi-unit characters (see the description of \eC
+in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation). The use of \eC is not supported in the alternative matching
+function \fBpcre[16]_dfa_exec()\fP, nor is it supported in UTF mode by the JIT
+optimization of \fBpcre[16]_exec()\fP. If JIT optimization is requested for a
+UTF pattern that contains \eC, it will not succeed, and so the matching will
+be carried out by the normal interpretive function.
+.P
+6. The character escapes \eb, \eB, \ed, \eD, \es, \eS, \ew, and \eW correctly
+test characters of any code value, but, by default, the characters that PCRE
+recognizes as digits, spaces, or word characters remain the same set as in
+non-UTF mode, all with values less than 256. This remains true even when PCRE
+is built to include Unicode property support, because to do otherwise would
+slow down PCRE in many common cases. Note in particular that this applies to
+\eb and \eB, because they are defined in terms of \ew and \eW. If you really
+want to test for a wider sense of, say, "digit", you can use explicit Unicode
+property tests such as \ep{Nd}. Alternatively, if you set the PCRE_UCP option,
+the way that the character escapes work is changed so that Unicode properties
+are used to determine which characters match. There are more details in the
+section on
+.\" HTML <a href="pcrepattern.html#genericchartypes">
+.\" </a>
+generic character types
+.\"
+in the
+.\" HREF
+\fBpcrepattern\fP
+.\"
+documentation.
+.P
+7. Similarly, characters that match the POSIX named character classes are all
+low-valued characters, unless the PCRE_UCP option is set.
+.P
+8. However, the horizontal and vertical white space matching escapes (\eh, \eH,
+\ev, and \eV) do match all the appropriate Unicode characters, whether or not
+PCRE_UCP is set.
+.P
+9. Case-insensitive matching applies only to characters whose values are less
+than 128, unless PCRE is built with Unicode property support. Even when Unicode
+property support is available, PCRE still uses its own character tables when
+checking the case of low-valued characters, so as not to degrade performance.
+The Unicode property information is used only for characters with higher
+values. Furthermore, PCRE supports case-insensitive matching only when there is
+a one-to-one mapping between a letter's cases. There are a small number of
+many-to-one mappings in Unicode; these are not supported by PCRE.
+.
+.
+.SH AUTHOR
+.rs
+.sp
+.nf
+Philip Hazel
+University Computing Service
+Cambridge CB2 3QH, England.
+.fi
+.
+.
+.SH REVISION
+.rs
+.sp
+.nf
+Last updated: 14 April 2012
+Copyright (c) 1997-2012 University of Cambridge.
+.fi
diff --git a/8.31/doc/perltest.txt b/8.31/doc/perltest.txt
new file mode 100644
index 0000000..bb1a52a
--- /dev/null
+++ b/8.31/doc/perltest.txt
@@ -0,0 +1,42 @@
+The perltest program
+--------------------
+
+The perltest.pl script tests Perl's regular expressions; it has the same
+specification as pcretest, and so can be given identical input, except that
+input patterns can be followed only by Perl's lower case modifiers and certain
+other pcretest modifiers that are either handled or ignored:
+
+  /+   recognized and handled by perltest
+  /++  the second + is ignored
+  /8   recognized and handled by perltest
+  /J   ignored
+  /K   ignored
+  /W   ignored
+  /S   ignored
+  /SS  ignored
+  /Y   ignored
+
+The pcretest \Y escape in data lines is removed before matching. The data lines
+are processed as Perl double-quoted strings, so if they contain " $ or @
+characters, these have to be escaped. For this reason, all such characters in
+the Perl-compatible testinput1 file are escaped so that they can be used for
+perltest as well as for pcretest. The special upper case pattern modifiers such
+as /A that pcretest recognizes, and its special data line escapes, are not used
+in the Perl-compatible test file. The output should be identical, apart from
+the initial identifying banner.
+
+The perltest.pl script can also test UTF-8 features. It recognizes the special
+modifier /8 that pcretest uses to invoke UTF-8 functionality. The testinput4
+and testinput6 files can be fed to perltest to run compatible UTF-8 tests.
+However, it is necessary to add "use utf8; require Encode" to the script to
+make this work correctly. I have not managed to find a way to handle this
+automatically.
+
+The other testinput files are not suitable for feeding to perltest.pl, since
+they make use of the special upper case modifiers and escapes that pcretest
+uses to test certain features of PCRE. Some of these files also contain
+malformed regular expressions, in order to check that PCRE diagnoses them
+correctly.
+
+Philip Hazel
+January 2012
diff --git a/8.31/install-sh b/8.31/install-sh
new file mode 100644
index 0000000..6781b98
--- /dev/null
+++ b/8.31/install-sh
@@ -0,0 +1,520 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2009-04-28.21; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+nl='
+'
+IFS=" ""	$nl"
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit=${DOITPROG-}
+if test -z "$doit"; then
+  doit_exec=exec
+else
+  doit_exec=$doit
+fi
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_glob='?'
+initialize_posix_glob='
+  test "$posix_glob" != "?" || {
+    if (set -f) 2>/dev/null; then
+      posix_glob=
+    else
+      posix_glob=:
+    fi
+  }
+'
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+no_target_directory=
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
+
+  -c            (ignored)
+  -C            install only if different (preserve the last data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -s            $stripprog installed files.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+	shift;;
+
+    --help) echo "$usage"; exit $?;;
+
+    -m) mode=$2
+	case $mode in
+	  *' '* | *'	'* | *'
+'*	  | *'*'* | *'?'* | *'['*)
+	    echo "$0: invalid mode: $mode" >&2
+	    exit 1;;
+	esac
+	shift;;
+
+    -o) chowncmd="$chownprog $2"
+	shift;;
+
+    -s) stripcmd=$stripprog;;
+
+    -t) dst_arg=$2
+	shift;;
+
+    -T) no_target_directory=true;;
+
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --)	shift
+	break;;
+
+    -*)	echo "$0: invalid option: $1" >&2
+	exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call `install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  trap '(exit $?); exit' 1 2 13 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names starting with `-'.
+  case $src in
+    -*) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+
+    dst=$dst_arg
+    # Protect names starting with `-'.
+    case $dst in
+      -*) dst=./$dst;;
+    esac
+
+    # If destination is a directory, append the input filename; won't work
+    # if double slashes aren't ignored.
+    if test -d "$dst"; then
+      if test -n "$no_target_directory"; then
+	echo "$0: $dst_arg: Is a directory" >&2
+	exit 1
+      fi
+      dstdir=$dst
+      dst=$dstdir/`basename "$src"`
+      dstdir_status=0
+    else
+      # Prefer dirname, but fall back on a substitute if dirname fails.
+      dstdir=`
+	(dirname "$dst") 2>/dev/null ||
+	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	     X"$dst" : 'X\(//\)[^/]' \| \
+	     X"$dst" : 'X\(//\)$' \| \
+	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
+	echo X"$dst" |
+	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)[^/].*/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\).*/{
+		   s//\1/
+		   q
+		 }
+		 s/.*/./; q'
+      `
+
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+	# Create intermediate dirs using mode 755 as modified by the umask.
+	# This is like FreeBSD 'install' as of 1997-10-28.
+	umask=`umask`
+	case $stripcmd.$umask in
+	  # Optimize common cases.
+	  *[2367][2367]) mkdir_umask=$umask;;
+	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+	  *[0-7])
+	    mkdir_umask=`expr $umask + 22 \
+	      - $umask % 100 % 40 + $umask % 20 \
+	      - $umask % 10 % 4 + $umask % 2
+	    `;;
+	  *) mkdir_umask=$umask,go-w;;
+	esac
+
+	# With -d, create the new directory with the user-specified mode.
+	# Otherwise, rely on $mkdir_umask.
+	if test -n "$dir_arg"; then
+	  mkdir_mode=-m$mode
+	else
+	  mkdir_mode=
+	fi
+
+	posix_mkdir=false
+	case $umask in
+	  *[123567][0-7][0-7])
+	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
+	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+	    ;;
+	  *)
+	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+	    if (umask $mkdir_umask &&
+		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+	    then
+	      if test -z "$dir_arg" || {
+		   # Check for POSIX incompatibilities with -m.
+		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+		   # other-writeable bit of parent directory when it shouldn't.
+		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
+		   case $ls_ld_tmpdir in
+		     d????-?r-*) different_mode=700;;
+		     d????-?--*) different_mode=755;;
+		     *) false;;
+		   esac &&
+		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+		   }
+		 }
+	      then posix_mkdir=:
+	      fi
+	      rmdir "$tmpdir/d" "$tmpdir"
+	    else
+	      # Remove any dirs left behind by ancient mkdir implementations.
+	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+	    fi
+	    trap '' 0;;
+	esac;;
+    esac
+
+    if
+      $posix_mkdir && (
+	umask $mkdir_umask &&
+	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # The umask is ridiculous, or mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+	/*) prefix='/';;
+	-*) prefix='./';;
+	*)  prefix='';;
+      esac
+
+      eval "$initialize_posix_glob"
+
+      oIFS=$IFS
+      IFS=/
+      $posix_glob set -f
+      set fnord $dstdir
+      shift
+      $posix_glob set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+	test -z "$d" && continue
+
+	prefix=$prefix$d
+	if test -d "$prefix"; then
+	  prefixes=
+	else
+	  if $posix_mkdir; then
+	    (umask=$mkdir_umask &&
+	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+	    # Don't fail if two instances are running concurrently.
+	    test -d "$prefix" || exit 1
+	  else
+	    case $prefix in
+	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+	      *) qprefix=$prefix;;
+	    esac
+	    prefixes="$prefixes '$qprefix'"
+	  fi
+	fi
+	prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+	# Don't fail if two instances are running concurrently.
+	(umask $mkdir_umask &&
+	 eval "\$doit_exec \$mkdirprog $prefixes") ||
+	  test -d "$dstdir" || exit 1
+	obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=$dstdir/_inst.$$_
+    rmtmp=$dstdir/_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&
+
+       eval "$initialize_posix_glob" &&
+       $posix_glob set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       $posix_glob set +f &&
+
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+	# Now remove or move aside any old file at destination location.
+	# We try this two ways since rm can't unlink itself on some
+	# systems and the destination file might be busy for other
+	# reasons.  In this case, the final cleanup might fail but the new
+	# file should still install successfully.
+	{
+	  test ! -f "$dst" ||
+	  $doit $rmcmd -f "$dst" 2>/dev/null ||
+	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+	  } ||
+	  { echo "$0: cannot unlink or rename $dst" >&2
+	    (exit 1); exit 1
+	  }
+	} &&
+
+	# Now rename the file to the real destination.
+	$doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/8.31/libpcre.pc.in b/8.31/libpcre.pc.in
new file mode 100644
index 0000000..1f26b32
--- /dev/null
+++ b/8.31/libpcre.pc.in
@@ -0,0 +1,12 @@
+# Package Information for pkg-config
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libpcre
+Description: PCRE - Perl compatible regular expressions C library with 8 bit character support
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lpcre
+Cflags: -I${includedir} @PCRE_STATIC_CFLAG@
diff --git a/8.31/libpcre16.pc.in b/8.31/libpcre16.pc.in
new file mode 100644
index 0000000..f589b75
--- /dev/null
+++ b/8.31/libpcre16.pc.in
@@ -0,0 +1,12 @@
+# Package Information for pkg-config
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libpcre16
+Description: PCRE - Perl compatible regular expressions C library with 16 bit character support
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lpcre16
+Cflags: -I${includedir} @PCRE_STATIC_CFLAG@
diff --git a/8.31/libpcrecpp.pc.in b/8.31/libpcrecpp.pc.in
new file mode 100644
index 0000000..ef006fe
--- /dev/null
+++ b/8.31/libpcrecpp.pc.in
@@ -0,0 +1,12 @@
+# Package Information for pkg-config
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libpcrecpp
+Description: PCRECPP - C++ wrapper for PCRE
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lpcre -lpcrecpp
+Cflags: -I${includedir} @PCRE_STATIC_CFLAG@
diff --git a/8.31/libpcreposix.pc.in b/8.31/libpcreposix.pc.in
new file mode 100644
index 0000000..c6c0b0c
--- /dev/null
+++ b/8.31/libpcreposix.pc.in
@@ -0,0 +1,13 @@
+# Package Information for pkg-config
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libpcreposix
+Description: PCREPosix - Posix compatible interface to libpcre
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lpcreposix
+Cflags: -I${includedir} @PCRE_STATIC_CFLAG@
+Requires.private: libpcre
diff --git a/8.31/linux/config.h b/8.31/linux/config.h
new file mode 100644
index 0000000..9a421b3
--- /dev/null
+++ b/8.31/linux/config.h
@@ -0,0 +1,49 @@
+/* config.h for CMake builds */
+
+/* #undef HAVE_DIRENT_H */
+#define HAVE_SYS_STAT_H 1
+#define HAVE_SYS_TYPES_H 1
+/* #undef HAVE_UNISTD_H */
+#define HAVE_WINDOWS_H 1
+
+/* #undef HAVE_TYPE_TRAITS_H */
+/* #undef HAVE_BITS_TYPE_TRAITS_H */
+
+/* #undef HAVE_BCOPY */
+#define HAVE_MEMMOVE 1
+#define HAVE_STRERROR 1
+#define HAVE_STRTOLL 1
+/* #undef HAVE_STRTOQ */
+/* #define HAVE__STRTOI64 */
+
+#define PCRE_STATIC 1
+
+#define SUPPORT_PCRE8 1
+/* #undef SUPPORT_PCRE16 */
+/* #undef SUPPORT_JIT */
+#define SUPPORT_PCREGREP_JIT 1
+/* #undef SUPPORT_UTF */
+/* #undef SUPPORT_UCP */
+/* #undef EBCDIC */
+/* #undef BSR_ANYCRLF */
+/* #undef NO_RECURSE */
+
+#define HAVE_LONG_LONG 1
+#define HAVE_UNSIGNED_LONG_LONG 1
+
+/* #undef SUPPORT_LIBBZ2 */
+/* #undef SUPPORT_LIBZ */
+/* #undef SUPPORT_LIBEDIT */
+/* #undef SUPPORT_LIBREADLINE */
+
+#define NEWLINE			10
+#define POSIX_MALLOC_THRESHOLD	10
+#define LINK_SIZE		2
+#define MATCH_LIMIT		10000000
+#define MATCH_LIMIT_RECURSION	MATCH_LIMIT
+#define PCREGREP_BUFSIZE        20480
+
+#define MAX_NAME_SIZE	32
+#define MAX_NAME_COUNT	10000
+
+/* end config.h for CMake builds */
diff --git a/8.31/ltmain.sh b/8.31/ltmain.sh
new file mode 100644
index 0000000..3061e3c
--- /dev/null
+++ b/8.31/ltmain.sh
@@ -0,0 +1,9636 @@
+
+# libtool (GNU libtool) 2.4
+# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html,
+# or obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+# Usage: $progname [OPTION]... [MODE-ARG]...
+#
+# Provide generalized library-building support services.
+#
+#       --config             show all configuration variables
+#       --debug              enable verbose shell tracing
+#   -n, --dry-run            display commands without modifying any files
+#       --features           display basic configuration information and exit
+#       --mode=MODE          use operation mode MODE
+#       --preserve-dup-deps  don't remove duplicate dependency libraries
+#       --quiet, --silent    don't print informational messages
+#       --no-quiet, --no-silent
+#                            print informational messages (default)
+#       --tag=TAG            use configuration variables from tag TAG
+#   -v, --verbose            print more informational messages than default
+#       --no-verbose         don't print the extra informational messages
+#       --version            print version information
+#   -h, --help, --help-all   print short, long, or detailed help message
+#
+# MODE must be one of the following:
+#
+#         clean              remove files from the build directory
+#         compile            compile a source file into a libtool object
+#         execute            automatically set library path, then run a program
+#         finish             complete the installation of libtool libraries
+#         install            install libraries or executables
+#         link               create a library or an executable
+#         uninstall          remove libraries from an installed directory
+#
+# MODE-ARGS vary depending on the MODE.  When passed as first option,
+# `--mode=MODE' may be abbreviated as `MODE' or a unique abbreviation of that.
+# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
+#
+# When reporting a bug, please describe a test case to reproduce it and
+# include the following information:
+#
+#         host-triplet:	$host
+#         shell:		$SHELL
+#         compiler:		$LTCC
+#         compiler flags:		$LTCFLAGS
+#         linker:		$LD (gnu? $with_gnu_ld)
+#         $progname:	(GNU libtool) 2.4
+#         automake:	$automake_version
+#         autoconf:	$autoconf_version
+#
+# Report bugs to <bug-libtool@gnu.org>.
+# GNU libtool home page: <http://www.gnu.org/software/libtool/>.
+# General help using GNU software: <http://www.gnu.org/gethelp/>.
+
+PROGRAM=libtool
+PACKAGE=libtool
+VERSION=2.4
+TIMESTAMP=""
+package_revision=1.3293
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+}
+
+# NLS nuisances: We save the old values to restore during execute mode.
+lt_user_locale=
+lt_safe_locale=
+for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+do
+  eval "if test \"\${$lt_var+set}\" = set; then
+          save_$lt_var=\$$lt_var
+          $lt_var=C
+	  export $lt_var
+	  lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
+	  lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
+	fi"
+done
+LC_ALL=C
+LANGUAGE=C
+export LANGUAGE LC_ALL
+
+$lt_unset CDPATH
+
+
+# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
+# is ksh but when the shell is invoked as "sh" and the current value of
+# the _XPG environment variable is not equal to 1 (one), the special
+# positional parameter $0, within a function call, is the name of the
+# function.
+progpath="$0"
+
+
+
+: ${CP="cp -f"}
+test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'}
+: ${EGREP="grep -E"}
+: ${FGREP="grep -F"}
+: ${GREP="grep"}
+: ${LN_S="ln -s"}
+: ${MAKE="make"}
+: ${MKDIR="mkdir"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+: ${SED="sed"}
+: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
+: ${Xsed="$SED -e 1s/^X//"}
+
+# Global variables:
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
+EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
+
+exit_status=$EXIT_SUCCESS
+
+# Make sure IFS has a sensible default
+lt_nl='
+'
+IFS=" 	$lt_nl"
+
+dirname="s,/[^/]*$,,"
+basename="s,^.*/,,"
+
+# func_dirname file append nondir_replacement
+# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+func_dirname ()
+{
+    func_dirname_result=`$ECHO "${1}" | $SED "$dirname"`
+    if test "X$func_dirname_result" = "X${1}"; then
+      func_dirname_result="${3}"
+    else
+      func_dirname_result="$func_dirname_result${2}"
+    fi
+} # func_dirname may be replaced by extended shell implementation
+
+
+# func_basename file
+func_basename ()
+{
+    func_basename_result=`$ECHO "${1}" | $SED "$basename"`
+} # func_basename may be replaced by extended shell implementation
+
+
+# func_dirname_and_basename file append nondir_replacement
+# perform func_basename and func_dirname in a single function
+# call:
+#   dirname:  Compute the dirname of FILE.  If nonempty,
+#             add APPEND to the result, otherwise set result
+#             to NONDIR_REPLACEMENT.
+#             value returned in "$func_dirname_result"
+#   basename: Compute filename of FILE.
+#             value retuned in "$func_basename_result"
+# Implementation must be kept synchronized with func_dirname
+# and func_basename. For efficiency, we do not delegate to
+# those functions but instead duplicate the functionality here.
+func_dirname_and_basename ()
+{
+    # Extract subdirectory from the argument.
+    func_dirname_result=`$ECHO "${1}" | $SED -e "$dirname"`
+    if test "X$func_dirname_result" = "X${1}"; then
+      func_dirname_result="${3}"
+    else
+      func_dirname_result="$func_dirname_result${2}"
+    fi
+    func_basename_result=`$ECHO "${1}" | $SED -e "$basename"`
+} # func_dirname_and_basename may be replaced by extended shell implementation
+
+
+# func_stripname prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+# func_strip_suffix prefix name
+func_stripname ()
+{
+    case ${2} in
+      .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
+      *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+    esac
+} # func_stripname may be replaced by extended shell implementation
+
+
+# These SED scripts presuppose an absolute path with a trailing slash.
+pathcar='s,^/\([^/]*\).*$,\1,'
+pathcdr='s,^/[^/]*,,'
+removedotparts=':dotsl
+		s@/\./@/@g
+		t dotsl
+		s,/\.$,/,'
+collapseslashes='s@/\{1,\}@/@g'
+finalslash='s,/*$,/,'
+
+# func_normal_abspath PATH
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+#             value returned in "$func_normal_abspath_result"
+func_normal_abspath ()
+{
+  # Start from root dir and reassemble the path.
+  func_normal_abspath_result=
+  func_normal_abspath_tpath=$1
+  func_normal_abspath_altnamespace=
+  case $func_normal_abspath_tpath in
+    "")
+      # Empty path, that just means $cwd.
+      func_stripname '' '/' "`pwd`"
+      func_normal_abspath_result=$func_stripname_result
+      return
+    ;;
+    # The next three entries are used to spot a run of precisely
+    # two leading slashes without using negated character classes;
+    # we take advantage of case's first-match behaviour.
+    ///*)
+      # Unusual form of absolute path, do nothing.
+    ;;
+    //*)
+      # Not necessarily an ordinary path; POSIX reserves leading '//'
+      # and for example Cygwin uses it to access remote file shares
+      # over CIFS/SMB, so we conserve a leading double slash if found.
+      func_normal_abspath_altnamespace=/
+    ;;
+    /*)
+      # Absolute path, do nothing.
+    ;;
+    *)
+      # Relative path, prepend $cwd.
+      func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+    ;;
+  esac
+  # Cancel out all the simple stuff to save iterations.  We also want
+  # the path to end with a slash for ease of parsing, so make sure
+  # there is one (and only one) here.
+  func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$removedotparts" -e "$collapseslashes" -e "$finalslash"`
+  while :; do
+    # Processed it all yet?
+    if test "$func_normal_abspath_tpath" = / ; then
+      # If we ascended to the root using ".." the result may be empty now.
+      if test -z "$func_normal_abspath_result" ; then
+        func_normal_abspath_result=/
+      fi
+      break
+    fi
+    func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$pathcar"`
+    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$pathcdr"`
+    # Figure out what to do with it
+    case $func_normal_abspath_tcomponent in
+      "")
+        # Trailing empty path component, ignore it.
+      ;;
+      ..)
+        # Parent dir; strip last assembled component from result.
+        func_dirname "$func_normal_abspath_result"
+        func_normal_abspath_result=$func_dirname_result
+      ;;
+      *)
+        # Actual path component, append it.
+        func_normal_abspath_result=$func_normal_abspath_result/$func_normal_abspath_tcomponent
+      ;;
+    esac
+  done
+  # Restore leading double-slash if one was found on entry.
+  func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+# func_relative_path SRCDIR DSTDIR
+# generates a relative path from SRCDIR to DSTDIR, with a trailing
+# slash if non-empty, suitable for immediately appending a filename
+# without needing to append a separator.
+#             value returned in "$func_relative_path_result"
+func_relative_path ()
+{
+  func_relative_path_result=
+  func_normal_abspath "$1"
+  func_relative_path_tlibdir=$func_normal_abspath_result
+  func_normal_abspath "$2"
+  func_relative_path_tbindir=$func_normal_abspath_result
+
+  # Ascend the tree starting from libdir
+  while :; do
+    # check if we have found a prefix of bindir
+    case $func_relative_path_tbindir in
+      $func_relative_path_tlibdir)
+        # found an exact match
+        func_relative_path_tcancelled=
+        break
+        ;;
+      $func_relative_path_tlibdir*)
+        # found a matching prefix
+        func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+        func_relative_path_tcancelled=$func_stripname_result
+        if test -z "$func_relative_path_result"; then
+          func_relative_path_result=.
+        fi
+        break
+        ;;
+      *)
+        func_dirname $func_relative_path_tlibdir
+        func_relative_path_tlibdir=${func_dirname_result}
+        if test "x$func_relative_path_tlibdir" = x ; then
+          # Have to descend all the way to the root!
+          func_relative_path_result=../$func_relative_path_result
+          func_relative_path_tcancelled=$func_relative_path_tbindir
+          break
+        fi
+        func_relative_path_result=../$func_relative_path_result
+        ;;
+    esac
+  done
+
+  # Now calculate path; take care to avoid doubling-up slashes.
+  func_stripname '' '/' "$func_relative_path_result"
+  func_relative_path_result=$func_stripname_result
+  func_stripname '/' '/' "$func_relative_path_tcancelled"
+  if test "x$func_stripname_result" != x ; then
+    func_relative_path_result=${func_relative_path_result}/${func_stripname_result}
+  fi
+
+  # Normalisation. If bindir is libdir, return empty string,
+  # else relative path ending with a slash; either way, target
+  # file name can be directly appended.
+  if test ! -z "$func_relative_path_result"; then
+    func_stripname './' '' "$func_relative_path_result/"
+    func_relative_path_result=$func_stripname_result
+  fi
+}
+
+# The name of this program:
+func_dirname_and_basename "$progpath"
+progname=$func_basename_result
+
+# Make sure we have an absolute path for reexecution:
+case $progpath in
+  [\\/]*|[A-Za-z]:\\*) ;;
+  *[\\/]*)
+     progdir=$func_dirname_result
+     progdir=`cd "$progdir" && pwd`
+     progpath="$progdir/$progname"
+     ;;
+  *)
+     save_IFS="$IFS"
+     IFS=:
+     for progdir in $PATH; do
+       IFS="$save_IFS"
+       test -x "$progdir/$progname" && break
+     done
+     IFS="$save_IFS"
+     test -n "$progdir" || progdir=`pwd`
+     progpath="$progdir/$progname"
+     ;;
+esac
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed="${SED}"' -e 1s/^X//'
+sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution that turns a string into a regex matching for the
+# string literally.
+sed_make_literal_regex='s,[].[^$\\*\/],\\&,g'
+
+# Sed substitution that converts a w32 file name or path
+# which contains forward slashes, into one that contains
+# (escaped) backslashes.  A very naive implementation.
+lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
+
+# Re-`\' parameter expansions in output of double_quote_subst that were
+# `\'-ed in input to the same.  If an odd number of `\' preceded a '$'
+# in input to double_quote_subst, that '$' was protected from expansion.
+# Since each input `\' is now two `\'s, look for any number of runs of
+# four `\'s followed by two `\'s and then a '$'.  `\' that '$'.
+bs='\\'
+bs2='\\\\'
+bs4='\\\\\\\\'
+dollar='\$'
+sed_double_backslash="\
+  s/$bs4/&\\
+/g
+  s/^$bs2$dollar/$bs&/
+  s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
+  s/\n//g"
+
+# Standard options:
+opt_dry_run=false
+opt_help=false
+opt_quiet=false
+opt_verbose=false
+opt_warning=:
+
+# func_echo arg...
+# Echo program name prefixed message, along with the current mode
+# name if it has been set yet.
+func_echo ()
+{
+    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
+}
+
+# func_verbose arg...
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+    $opt_verbose && func_echo ${1+"$@"}
+
+    # A bug in bash halts the script if the last line of a function
+    # fails when set -e is in force, so we need another command to
+    # work around that:
+    :
+}
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*"
+}
+
+# func_error arg...
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
+}
+
+# func_warning arg...
+# Echo program name prefixed warning message to standard error.
+func_warning ()
+{
+    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
+
+    # bash bug again:
+    :
+}
+
+# func_fatal_error arg...
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
+{
+    func_error ${1+"$@"}
+    exit $EXIT_FAILURE
+}
+
+# func_fatal_help arg...
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
+{
+    func_error ${1+"$@"}
+    func_fatal_error "$help"
+}
+help="Try \`$progname --help' for more information."  ## default
+
+
+# func_grep expression filename
+# Check whether EXPRESSION matches any line of FILENAME, without output.
+func_grep ()
+{
+    $GREP "$1" "$2" >/dev/null 2>&1
+}
+
+
+# func_mkdir_p directory-path
+# Make sure the entire path to DIRECTORY-PATH is available.
+func_mkdir_p ()
+{
+    my_directory_path="$1"
+    my_dir_list=
+
+    if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then
+
+      # Protect directory names starting with `-'
+      case $my_directory_path in
+        -*) my_directory_path="./$my_directory_path" ;;
+      esac
+
+      # While some portion of DIR does not yet exist...
+      while test ! -d "$my_directory_path"; do
+        # ...make a list in topmost first order.  Use a colon delimited
+	# list incase some portion of path contains whitespace.
+        my_dir_list="$my_directory_path:$my_dir_list"
+
+        # If the last portion added has no slash in it, the list is done
+        case $my_directory_path in */*) ;; *) break ;; esac
+
+        # ...otherwise throw away the child directory and loop
+        my_directory_path=`$ECHO "$my_directory_path" | $SED -e "$dirname"`
+      done
+      my_dir_list=`$ECHO "$my_dir_list" | $SED 's,:*$,,'`
+
+      save_mkdir_p_IFS="$IFS"; IFS=':'
+      for my_dir in $my_dir_list; do
+	IFS="$save_mkdir_p_IFS"
+        # mkdir can fail with a `File exist' error if two processes
+        # try to create one of the directories concurrently.  Don't
+        # stop in that case!
+        $MKDIR "$my_dir" 2>/dev/null || :
+      done
+      IFS="$save_mkdir_p_IFS"
+
+      # Bail out if we (or some other process) failed to create a directory.
+      test -d "$my_directory_path" || \
+        func_fatal_error "Failed to create \`$1'"
+    fi
+}
+
+
+# func_mktempdir [string]
+# Make a temporary directory that won't clash with other running
+# libtool processes, and avoids race conditions if possible.  If
+# given, STRING is the basename for that directory.
+func_mktempdir ()
+{
+    my_template="${TMPDIR-/tmp}/${1-$progname}"
+
+    if test "$opt_dry_run" = ":"; then
+      # Return a directory name, but don't create it in dry-run mode
+      my_tmpdir="${my_template}-$$"
+    else
+
+      # If mktemp works, use that first and foremost
+      my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`
+
+      if test ! -d "$my_tmpdir"; then
+        # Failing that, at least try and use $RANDOM to avoid a race
+        my_tmpdir="${my_template}-${RANDOM-0}$$"
+
+        save_mktempdir_umask=`umask`
+        umask 0077
+        $MKDIR "$my_tmpdir"
+        umask $save_mktempdir_umask
+      fi
+
+      # If we're not in dry-run mode, bomb out on failure
+      test -d "$my_tmpdir" || \
+        func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
+    fi
+
+    $ECHO "$my_tmpdir"
+}
+
+
+# func_quote_for_eval arg
+# Aesthetically quote ARG to be evaled later.
+# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
+# is double-quoted, suitable for a subsequent eval, whereas
+# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
+# which are still active within double quotes backslashified.
+func_quote_for_eval ()
+{
+    case $1 in
+      *[\\\`\"\$]*)
+	func_quote_for_eval_unquoted_result=`$ECHO "$1" | $SED "$sed_quote_subst"` ;;
+      *)
+        func_quote_for_eval_unquoted_result="$1" ;;
+    esac
+
+    case $func_quote_for_eval_unquoted_result in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting, command substitution and and variable
+      # expansion for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
+        ;;
+      *)
+        func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
+    esac
+}
+
+
+# func_quote_for_expand arg
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
+{
+    case $1 in
+      *[\\\`\"]*)
+	my_arg=`$ECHO "$1" | $SED \
+	    -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
+      *)
+        my_arg="$1" ;;
+    esac
+
+    case $my_arg in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting and command substitution for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        my_arg="\"$my_arg\""
+        ;;
+    esac
+
+    func_quote_for_expand_result="$my_arg"
+}
+
+
+# func_show_eval cmd [fail_exp]
+# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+    my_cmd="$1"
+    my_fail_exp="${2-:}"
+
+    ${opt_silent-false} || {
+      func_quote_for_expand "$my_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
+
+    if ${opt_dry_run-false}; then :; else
+      eval "$my_cmd"
+      my_status=$?
+      if test "$my_status" -eq 0; then :; else
+	eval "(exit $my_status); $my_fail_exp"
+      fi
+    fi
+}
+
+
+# func_show_eval_locale cmd [fail_exp]
+# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.  Use the saved locale for evaluation.
+func_show_eval_locale ()
+{
+    my_cmd="$1"
+    my_fail_exp="${2-:}"
+
+    ${opt_silent-false} || {
+      func_quote_for_expand "$my_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
+
+    if ${opt_dry_run-false}; then :; else
+      eval "$lt_user_locale
+	    $my_cmd"
+      my_status=$?
+      eval "$lt_safe_locale"
+      if test "$my_status" -eq 0; then :; else
+	eval "(exit $my_status); $my_fail_exp"
+      fi
+    fi
+}
+
+# func_tr_sh
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result.  All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+  case $1 in
+  [0-9]* | *[!a-zA-Z0-9_]*)
+    func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/; s/[^a-zA-Z0-9_]/_/g'`
+    ;;
+  * )
+    func_tr_sh_result=$1
+    ;;
+  esac
+}
+
+
+# func_version
+# Echo version message to standard output and exit.
+func_version ()
+{
+    $opt_debug
+
+    $SED -n '/(C)/!b go
+	:more
+	/\./!{
+	  N
+	  s/\n# / /
+	  b more
+	}
+	:go
+	/^# '$PROGRAM' (GNU /,/# warranty; / {
+        s/^# //
+	s/^# *$//
+        s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
+        p
+     }' < "$progpath"
+     exit $?
+}
+
+# func_usage
+# Echo short help message to standard output and exit.
+func_usage ()
+{
+    $opt_debug
+
+    $SED -n '/^# Usage:/,/^#  *.*--help/ {
+        s/^# //
+	s/^# *$//
+	s/\$progname/'$progname'/
+	p
+    }' < "$progpath"
+    echo
+    $ECHO "run \`$progname --help | more' for full usage"
+    exit $?
+}
+
+# func_help [NOEXIT]
+# Echo long help message to standard output and exit,
+# unless 'noexit' is passed as argument.
+func_help ()
+{
+    $opt_debug
+
+    $SED -n '/^# Usage:/,/# Report bugs to/ {
+	:print
+        s/^# //
+	s/^# *$//
+	s*\$progname*'$progname'*
+	s*\$host*'"$host"'*
+	s*\$SHELL*'"$SHELL"'*
+	s*\$LTCC*'"$LTCC"'*
+	s*\$LTCFLAGS*'"$LTCFLAGS"'*
+	s*\$LD*'"$LD"'*
+	s/\$with_gnu_ld/'"$with_gnu_ld"'/
+	s/\$automake_version/'"`(automake --version) 2>/dev/null |$SED 1q`"'/
+	s/\$autoconf_version/'"`(autoconf --version) 2>/dev/null |$SED 1q`"'/
+	p
+	d
+     }
+     /^# .* home page:/b print
+     /^# General help using/b print
+     ' < "$progpath"
+    ret=$?
+    if test -z "$1"; then
+      exit $ret
+    fi
+}
+
+# func_missing_arg argname
+# Echo program name prefixed message to standard error and set global
+# exit_cmd.
+func_missing_arg ()
+{
+    $opt_debug
+
+    func_error "missing argument for $1."
+    exit_cmd=exit
+}
+
+
+# func_split_short_opt shortopt
+# Set func_split_short_opt_name and func_split_short_opt_arg shell
+# variables after splitting SHORTOPT after the 2nd character.
+func_split_short_opt ()
+{
+    my_sed_short_opt='1s/^\(..\).*$/\1/;q'
+    my_sed_short_rest='1s/^..\(.*\)$/\1/;q'
+
+    func_split_short_opt_name=`$ECHO "$1" | $SED "$my_sed_short_opt"`
+    func_split_short_opt_arg=`$ECHO "$1" | $SED "$my_sed_short_rest"`
+} # func_split_short_opt may be replaced by extended shell implementation
+
+
+# func_split_long_opt longopt
+# Set func_split_long_opt_name and func_split_long_opt_arg shell
+# variables after splitting LONGOPT at the `=' sign.
+func_split_long_opt ()
+{
+    my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
+    my_sed_long_arg='1s/^--[^=]*=//'
+
+    func_split_long_opt_name=`$ECHO "$1" | $SED "$my_sed_long_opt"`
+    func_split_long_opt_arg=`$ECHO "$1" | $SED "$my_sed_long_arg"`
+} # func_split_long_opt may be replaced by extended shell implementation
+
+exit_cmd=:
+
+
+
+
+
+magic="%%%MAGIC variable%%%"
+magic_exe="%%%MAGIC EXE variable%%%"
+
+# Global variables.
+nonopt=
+preserve_args=
+lo2o="s/\\.lo\$/.${objext}/"
+o2lo="s/\\.${objext}\$/.lo/"
+extracted_archives=
+extracted_serial=0
+
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end.  This prevents here-documents from being
+# left over by shells.
+exec_cmd=
+
+# func_append var value
+# Append VALUE to the end of shell variable VAR.
+func_append ()
+{
+    eval "${1}=\$${1}\${2}"
+} # func_append may be replaced by extended shell implementation
+
+# func_append_quoted var value
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+func_append_quoted ()
+{
+    func_quote_for_eval "${2}"
+    eval "${1}=\$${1}\\ \$func_quote_for_eval_result"
+} # func_append_quoted may be replaced by extended shell implementation
+
+
+# func_arith arithmetic-term...
+func_arith ()
+{
+    func_arith_result=`expr "${@}"`
+} # func_arith may be replaced by extended shell implementation
+
+
+# func_len string
+# STRING may not start with a hyphen.
+func_len ()
+{
+    func_len_result=`expr "${1}" : ".*" 2>/dev/null || echo $max_cmd_len`
+} # func_len may be replaced by extended shell implementation
+
+
+# func_lo2o object
+func_lo2o ()
+{
+    func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"`
+} # func_lo2o may be replaced by extended shell implementation
+
+
+# func_xform libobj-or-source
+func_xform ()
+{
+    func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'`
+} # func_xform may be replaced by extended shell implementation
+
+
+# func_fatal_configuration arg...
+# Echo program name prefixed message to standard error, followed by
+# a configuration failure hint, and exit.
+func_fatal_configuration ()
+{
+    func_error ${1+"$@"}
+    func_error "See the $PACKAGE documentation for more information."
+    func_fatal_error "Fatal configuration error."
+}
+
+
+# func_config
+# Display the configuration for all the tags in this script.
+func_config ()
+{
+    re_begincf='^# ### BEGIN LIBTOOL'
+    re_endcf='^# ### END LIBTOOL'
+
+    # Default configuration.
+    $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
+
+    # Now print the configurations for the tags.
+    for tagname in $taglist; do
+      $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
+    done
+
+    exit $?
+}
+
+# func_features
+# Display the features supported by this script.
+func_features ()
+{
+    echo "host: $host"
+    if test "$build_libtool_libs" = yes; then
+      echo "enable shared libraries"
+    else
+      echo "disable shared libraries"
+    fi
+    if test "$build_old_libs" = yes; then
+      echo "enable static libraries"
+    else
+      echo "disable static libraries"
+    fi
+
+    exit $?
+}
+
+# func_enable_tag tagname
+# Verify that TAGNAME is valid, and either flag an error and exit, or
+# enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
+# variable here.
+func_enable_tag ()
+{
+  # Global variable:
+  tagname="$1"
+
+  re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
+  re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
+  sed_extractcf="/$re_begincf/,/$re_endcf/p"
+
+  # Validate tagname.
+  case $tagname in
+    *[!-_A-Za-z0-9,/]*)
+      func_fatal_error "invalid tag name: $tagname"
+      ;;
+  esac
+
+  # Don't test for the "default" C tag, as we know it's
+  # there but not specially marked.
+  case $tagname in
+    CC) ;;
+    *)
+      if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
+	taglist="$taglist $tagname"
+
+	# Evaluate the configuration.  Be careful to quote the path
+	# and the sed script, to avoid splitting on whitespace, but
+	# also don't use non-portable quotes within backquotes within
+	# quotes we have to do it in 2 steps:
+	extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
+	eval "$extractedcf"
+      else
+	func_error "ignoring unknown tag $tagname"
+      fi
+      ;;
+  esac
+}
+
+# func_check_version_match
+# Ensure that we are using m4 macros, and libtool script from the same
+# release of libtool.
+func_check_version_match ()
+{
+  if test "$package_revision" != "$macro_revision"; then
+    if test "$VERSION" != "$macro_version"; then
+      if test -z "$macro_version"; then
+        cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from an older release.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+      else
+        cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+      fi
+    else
+      cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
+$progname: but the definition of this LT_INIT comes from revision $macro_revision.
+$progname: You should recreate aclocal.m4 with macros from revision $package_revision
+$progname: of $PACKAGE $VERSION and run autoconf again.
+_LT_EOF
+    fi
+
+    exit $EXIT_MISMATCH
+  fi
+}
+
+
+# Shorthand for --mode=foo, only valid as the first argument
+case $1 in
+clean|clea|cle|cl)
+  shift; set dummy --mode clean ${1+"$@"}; shift
+  ;;
+compile|compil|compi|comp|com|co|c)
+  shift; set dummy --mode compile ${1+"$@"}; shift
+  ;;
+execute|execut|execu|exec|exe|ex|e)
+  shift; set dummy --mode execute ${1+"$@"}; shift
+  ;;
+finish|finis|fini|fin|fi|f)
+  shift; set dummy --mode finish ${1+"$@"}; shift
+  ;;
+install|instal|insta|inst|ins|in|i)
+  shift; set dummy --mode install ${1+"$@"}; shift
+  ;;
+link|lin|li|l)
+  shift; set dummy --mode link ${1+"$@"}; shift
+  ;;
+uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
+  shift; set dummy --mode uninstall ${1+"$@"}; shift
+  ;;
+esac
+
+
+
+# Option defaults:
+opt_debug=:
+opt_dry_run=false
+opt_config=false
+opt_preserve_dup_deps=false
+opt_features=false
+opt_finish=false
+opt_help=false
+opt_help_all=false
+opt_silent=:
+opt_verbose=:
+opt_silent=false
+opt_verbose=false
+
+
+# Parse options once, thoroughly.  This comes as soon as possible in the
+# script to make things like `--version' happen as quickly as we can.
+{
+  # this just eases exit handling
+  while test $# -gt 0; do
+    opt="$1"
+    shift
+    case $opt in
+      --debug|-x)	opt_debug='set -x'
+			func_echo "enabling shell trace mode"
+			$opt_debug
+			;;
+      --dry-run|--dryrun|-n)
+			opt_dry_run=:
+			;;
+      --config)
+			opt_config=:
+func_config
+			;;
+      --dlopen|-dlopen)
+			optarg="$1"
+			opt_dlopen="${opt_dlopen+$opt_dlopen
+}$optarg"
+			shift
+			;;
+      --preserve-dup-deps)
+			opt_preserve_dup_deps=:
+			;;
+      --features)
+			opt_features=:
+func_features
+			;;
+      --finish)
+			opt_finish=:
+set dummy --mode finish ${1+"$@"}; shift
+			;;
+      --help)
+			opt_help=:
+			;;
+      --help-all)
+			opt_help_all=:
+opt_help=': help-all'
+			;;
+      --mode)
+			test $# = 0 && func_missing_arg $opt && break
+			optarg="$1"
+			opt_mode="$optarg"
+case $optarg in
+  # Valid mode arguments:
+  clean|compile|execute|finish|install|link|relink|uninstall) ;;
+
+  # Catch anything else as an error
+  *) func_error "invalid argument for $opt"
+     exit_cmd=exit
+     break
+     ;;
+esac
+			shift
+			;;
+      --no-silent|--no-quiet)
+			opt_silent=false
+func_append preserve_args " $opt"
+			;;
+      --no-verbose)
+			opt_verbose=false
+func_append preserve_args " $opt"
+			;;
+      --silent|--quiet)
+			opt_silent=:
+func_append preserve_args " $opt"
+        opt_verbose=false
+			;;
+      --verbose|-v)
+			opt_verbose=:
+func_append preserve_args " $opt"
+opt_silent=false
+			;;
+      --tag)
+			test $# = 0 && func_missing_arg $opt && break
+			optarg="$1"
+			opt_tag="$optarg"
+func_append preserve_args " $opt $optarg"
+func_enable_tag "$optarg"
+			shift
+			;;
+
+      -\?|-h)		func_usage				;;
+      --help)		func_help				;;
+      --version)	func_version				;;
+
+      # Separate optargs to long options:
+      --*=*)
+			func_split_long_opt "$opt"
+			set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"}
+			shift
+			;;
+
+      # Separate non-argument short options:
+      -\?*|-h*|-n*|-v*)
+			func_split_short_opt "$opt"
+			set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"}
+			shift
+			;;
+
+      --)		break					;;
+      -*)		func_fatal_help "unrecognized option \`$opt'" ;;
+      *)		set dummy "$opt" ${1+"$@"};	shift; break  ;;
+    esac
+  done
+
+  # Validate options:
+
+  # save first non-option argument
+  if test "$#" -gt 0; then
+    nonopt="$opt"
+    shift
+  fi
+
+  # preserve --debug
+  test "$opt_debug" = : || func_append preserve_args " --debug"
+
+  case $host in
+    *cygwin* | *mingw* | *pw32* | *cegcc*)
+      # don't eliminate duplications in $postdeps and $predeps
+      opt_duplicate_compiler_generated_deps=:
+      ;;
+    *)
+      opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
+      ;;
+  esac
+
+  $opt_help || {
+    # Sanity checks first:
+    func_check_version_match
+
+    if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
+      func_fatal_configuration "not configured to build any kind of library"
+    fi
+
+    # Darwin sucks
+    eval std_shrext=\"$shrext_cmds\"
+
+    # Only execute mode is allowed to have -dlopen flags.
+    if test -n "$opt_dlopen" && test "$opt_mode" != execute; then
+      func_error "unrecognized option \`-dlopen'"
+      $ECHO "$help" 1>&2
+      exit $EXIT_FAILURE
+    fi
+
+    # Change the help message to a mode-specific one.
+    generic_help="$help"
+    help="Try \`$progname --help --mode=$opt_mode' for more information."
+  }
+
+
+  # Bail if the options were screwed
+  $exit_cmd $EXIT_FAILURE
+}
+
+
+
+
+## ----------- ##
+##    Main.    ##
+## ----------- ##
+
+# func_lalib_p file
+# True iff FILE is a libtool `.la' library or `.lo' object file.
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_lalib_p ()
+{
+    test -f "$1" &&
+      $SED -e 4q "$1" 2>/dev/null \
+        | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
+}
+
+# func_lalib_unsafe_p file
+# True iff FILE is a libtool `.la' library or `.lo' object file.
+# This function implements the same check as func_lalib_p without
+# resorting to external programs.  To this end, it redirects stdin and
+# closes it afterwards, without saving the original file descriptor.
+# As a safety measure, use it only where a negative result would be
+# fatal anyway.  Works if `file' does not exist.
+func_lalib_unsafe_p ()
+{
+    lalib_p=no
+    if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
+	for lalib_p_l in 1 2 3 4
+	do
+	    read lalib_p_line
+	    case "$lalib_p_line" in
+		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
+	    esac
+	done
+	exec 0<&5 5<&-
+    fi
+    test "$lalib_p" = yes
+}
+
+# func_ltwrapper_script_p file
+# True iff FILE is a libtool wrapper script
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_script_p ()
+{
+    func_lalib_p "$1"
+}
+
+# func_ltwrapper_executable_p file
+# True iff FILE is a libtool wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_executable_p ()
+{
+    func_ltwrapper_exec_suffix=
+    case $1 in
+    *.exe) ;;
+    *) func_ltwrapper_exec_suffix=.exe ;;
+    esac
+    $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
+}
+
+# func_ltwrapper_scriptname file
+# Assumes file is an ltwrapper_executable
+# uses $file to determine the appropriate filename for a
+# temporary ltwrapper_script.
+func_ltwrapper_scriptname ()
+{
+    func_dirname_and_basename "$1" "" "."
+    func_stripname '' '.exe' "$func_basename_result"
+    func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
+}
+
+# func_ltwrapper_p file
+# True iff FILE is a libtool wrapper script or wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_p ()
+{
+    func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
+}
+
+
+# func_execute_cmds commands fail_cmd
+# Execute tilde-delimited COMMANDS.
+# If FAIL_CMD is given, eval that upon failure.
+# FAIL_CMD may read-access the current command in variable CMD!
+func_execute_cmds ()
+{
+    $opt_debug
+    save_ifs=$IFS; IFS='~'
+    for cmd in $1; do
+      IFS=$save_ifs
+      eval cmd=\"$cmd\"
+      func_show_eval "$cmd" "${2-:}"
+    done
+    IFS=$save_ifs
+}
+
+
+# func_source file
+# Source FILE, adding directory component if necessary.
+# Note that it is not necessary on cygwin/mingw to append a dot to
+# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
+# behavior happens only for exec(3), not for open(2)!  Also, sourcing
+# `FILE.' does not work on cygwin managed mounts.
+func_source ()
+{
+    $opt_debug
+    case $1 in
+    */* | *\\*)	. "$1" ;;
+    *)		. "./$1" ;;
+    esac
+}
+
+
+# func_resolve_sysroot PATH
+# Replace a leading = in PATH with a sysroot.  Store the result into
+# func_resolve_sysroot_result
+func_resolve_sysroot ()
+{
+  func_resolve_sysroot_result=$1
+  case $func_resolve_sysroot_result in
+  =*)
+    func_stripname '=' '' "$func_resolve_sysroot_result"
+    func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
+    ;;
+  esac
+}
+
+# func_replace_sysroot PATH
+# If PATH begins with the sysroot, replace it with = and
+# store the result into func_replace_sysroot_result.
+func_replace_sysroot ()
+{
+  case "$lt_sysroot:$1" in
+  ?*:"$lt_sysroot"*)
+    func_stripname "$lt_sysroot" '' "$1"
+    func_replace_sysroot_result="=$func_stripname_result"
+    ;;
+  *)
+    # Including no sysroot.
+    func_replace_sysroot_result=$1
+    ;;
+  esac
+}
+
+# func_infer_tag arg
+# Infer tagged configuration to use if any are available and
+# if one wasn't chosen via the "--tag" command line option.
+# Only attempt this if the compiler in the base compile
+# command doesn't match the default compiler.
+# arg is usually of the form 'gcc ...'
+func_infer_tag ()
+{
+    $opt_debug
+    if test -n "$available_tags" && test -z "$tagname"; then
+      CC_quoted=
+      for arg in $CC; do
+	func_append_quoted CC_quoted "$arg"
+      done
+      CC_expanded=`func_echo_all $CC`
+      CC_quoted_expanded=`func_echo_all $CC_quoted`
+      case $@ in
+      # Blanks in the command may have been stripped by the calling shell,
+      # but not from the CC environment variable when configure was run.
+      " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+      " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
+      # Blanks at the start of $base_compile will cause this to fail
+      # if we don't check for them as well.
+      *)
+	for z in $available_tags; do
+	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
+	    # Evaluate the configuration.
+	    eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
+	    CC_quoted=
+	    for arg in $CC; do
+	      # Double-quote args containing other shell metacharacters.
+	      func_append_quoted CC_quoted "$arg"
+	    done
+	    CC_expanded=`func_echo_all $CC`
+	    CC_quoted_expanded=`func_echo_all $CC_quoted`
+	    case "$@ " in
+	    " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+	    " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
+	      # The compiler in the base compile command matches
+	      # the one in the tagged configuration.
+	      # Assume this is the tagged configuration we want.
+	      tagname=$z
+	      break
+	      ;;
+	    esac
+	  fi
+	done
+	# If $tagname still isn't set, then no tagged configuration
+	# was found and let the user know that the "--tag" command
+	# line option must be used.
+	if test -z "$tagname"; then
+	  func_echo "unable to infer tagged configuration"
+	  func_fatal_error "specify a tag with \`--tag'"
+#	else
+#	  func_verbose "using $tagname tagged configuration"
+	fi
+	;;
+      esac
+    fi
+}
+
+
+
+# func_write_libtool_object output_name pic_name nonpic_name
+# Create a libtool object file (analogous to a ".la" file),
+# but don't create it if we're doing a dry run.
+func_write_libtool_object ()
+{
+    write_libobj=${1}
+    if test "$build_libtool_libs" = yes; then
+      write_lobj=\'${2}\'
+    else
+      write_lobj=none
+    fi
+
+    if test "$build_old_libs" = yes; then
+      write_oldobj=\'${3}\'
+    else
+      write_oldobj=none
+    fi
+
+    $opt_dry_run || {
+      cat >${write_libobj}T <<EOF
+# $write_libobj - a libtool object file
+# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# Name of the PIC object.
+pic_object=$write_lobj
+
+# Name of the non-PIC object
+non_pic_object=$write_oldobj
+
+EOF
+      $MV "${write_libobj}T" "${write_libobj}"
+    }
+}
+
+
+##################################################
+# FILE NAME AND PATH CONVERSION HELPER FUNCTIONS #
+##################################################
+
+# func_convert_core_file_wine_to_w32 ARG
+# Helper function used by file name conversion functions when $build is *nix,
+# and $host is mingw, cygwin, or some other w32 environment. Relies on a
+# correctly configured wine environment available, with the winepath program
+# in $build's $PATH.
+#
+# ARG is the $build file name to be converted to w32 format.
+# Result is available in $func_convert_core_file_wine_to_w32_result, and will
+# be empty on error (or when ARG is empty)
+func_convert_core_file_wine_to_w32 ()
+{
+  $opt_debug
+  func_convert_core_file_wine_to_w32_result="$1"
+  if test -n "$1"; then
+    # Unfortunately, winepath does not exit with a non-zero error code, so we
+    # are forced to check the contents of stdout. On the other hand, if the
+    # command is not found, the shell will set an exit code of 127 and print
+    # *an error message* to stdout. So we must check for both error code of
+    # zero AND non-empty stdout, which explains the odd construction:
+    func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null`
+    if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then
+      func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
+        $SED -e "$lt_sed_naive_backslashify"`
+    else
+      func_convert_core_file_wine_to_w32_result=
+    fi
+  fi
+}
+# end: func_convert_core_file_wine_to_w32
+
+
+# func_convert_core_path_wine_to_w32 ARG
+# Helper function used by path conversion functions when $build is *nix, and
+# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
+# configured wine environment available, with the winepath program in $build's
+# $PATH. Assumes ARG has no leading or trailing path separator characters.
+#
+# ARG is path to be converted from $build format to win32.
+# Result is available in $func_convert_core_path_wine_to_w32_result.
+# Unconvertible file (directory) names in ARG are skipped; if no directory names
+# are convertible, then the result may be empty.
+func_convert_core_path_wine_to_w32 ()
+{
+  $opt_debug
+  # unfortunately, winepath doesn't convert paths, only file names
+  func_convert_core_path_wine_to_w32_result=""
+  if test -n "$1"; then
+    oldIFS=$IFS
+    IFS=:
+    for func_convert_core_path_wine_to_w32_f in $1; do
+      IFS=$oldIFS
+      func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
+      if test -n "$func_convert_core_file_wine_to_w32_result" ; then
+        if test -z "$func_convert_core_path_wine_to_w32_result"; then
+          func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result"
+        else
+          func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
+        fi
+      fi
+    done
+    IFS=$oldIFS
+  fi
+}
+# end: func_convert_core_path_wine_to_w32
+
+
+# func_cygpath ARGS...
+# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
+# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
+# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
+# (2), returns the Cygwin file name or path in func_cygpath_result (input
+# file name or path is assumed to be in w32 format, as previously converted
+# from $build's *nix or MSYS format). In case (3), returns the w32 file name
+# or path in func_cygpath_result (input file name or path is assumed to be in
+# Cygwin format). Returns an empty string on error.
+#
+# ARGS are passed to cygpath, with the last one being the file name or path to
+# be converted.
+#
+# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
+# environment variable; do not put it in $PATH.
+func_cygpath ()
+{
+  $opt_debug
+  if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
+    func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
+    if test "$?" -ne 0; then
+      # on failure, ensure result is empty
+      func_cygpath_result=
+    fi
+  else
+    func_cygpath_result=
+    func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'"
+  fi
+}
+#end: func_cygpath
+
+
+# func_convert_core_msys_to_w32 ARG
+# Convert file name or path ARG from MSYS format to w32 format.  Return
+# result in func_convert_core_msys_to_w32_result.
+func_convert_core_msys_to_w32 ()
+{
+  $opt_debug
+  # awkward: cmd appends spaces to result
+  func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
+    $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"`
+}
+#end: func_convert_core_msys_to_w32
+
+
+# func_convert_file_check ARG1 ARG2
+# Verify that ARG1 (a file name in $build format) was converted to $host
+# format in ARG2. Otherwise, emit an error message, but continue (resetting
+# func_to_host_file_result to ARG1).
+func_convert_file_check ()
+{
+  $opt_debug
+  if test -z "$2" && test -n "$1" ; then
+    func_error "Could not determine host file name corresponding to"
+    func_error "  \`$1'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback:
+    func_to_host_file_result="$1"
+  fi
+}
+# end func_convert_file_check
+
+
+# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
+# Verify that FROM_PATH (a path in $build format) was converted to $host
+# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
+# func_to_host_file_result to a simplistic fallback value (see below).
+func_convert_path_check ()
+{
+  $opt_debug
+  if test -z "$4" && test -n "$3"; then
+    func_error "Could not determine the host path corresponding to"
+    func_error "  \`$3'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback.  This is a deliberately simplistic "conversion" and
+    # should not be "improved".  See libtool.info.
+    if test "x$1" != "x$2"; then
+      lt_replace_pathsep_chars="s|$1|$2|g"
+      func_to_host_path_result=`echo "$3" |
+        $SED -e "$lt_replace_pathsep_chars"`
+    else
+      func_to_host_path_result="$3"
+    fi
+  fi
+}
+# end func_convert_path_check
+
+
+# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
+# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
+# and appending REPL if ORIG matches BACKPAT.
+func_convert_path_front_back_pathsep ()
+{
+  $opt_debug
+  case $4 in
+  $1 ) func_to_host_path_result="$3$func_to_host_path_result"
+    ;;
+  esac
+  case $4 in
+  $2 ) func_append func_to_host_path_result "$3"
+    ;;
+  esac
+}
+# end func_convert_path_front_back_pathsep
+
+
+##################################################
+# $build to $host FILE NAME CONVERSION FUNCTIONS #
+##################################################
+# invoked via `$to_host_file_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# Result will be available in $func_to_host_file_result.
+
+
+# func_to_host_file ARG
+# Converts the file name ARG from $build format to $host format. Return result
+# in func_to_host_file_result.
+func_to_host_file ()
+{
+  $opt_debug
+  $to_host_file_cmd "$1"
+}
+# end func_to_host_file
+
+
+# func_to_tool_file ARG LAZY
+# converts the file name ARG from $build format to toolchain format. Return
+# result in func_to_tool_file_result.  If the conversion in use is listed
+# in (the comma separated) LAZY, no conversion takes place.
+func_to_tool_file ()
+{
+  $opt_debug
+  case ,$2, in
+    *,"$to_tool_file_cmd",*)
+      func_to_tool_file_result=$1
+      ;;
+    *)
+      $to_tool_file_cmd "$1"
+      func_to_tool_file_result=$func_to_host_file_result
+      ;;
+  esac
+}
+# end func_to_tool_file
+
+
+# func_convert_file_noop ARG
+# Copy ARG to func_to_host_file_result.
+func_convert_file_noop ()
+{
+  func_to_host_file_result="$1"
+}
+# end func_convert_file_noop
+
+
+# func_convert_file_msys_to_w32 ARG
+# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_file_result.
+func_convert_file_msys_to_w32 ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_to_host_file_result="$func_convert_core_msys_to_w32_result"
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_w32
+
+
+# func_convert_file_cygwin_to_w32 ARG
+# Convert file name ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_file_cygwin_to_w32 ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
+    # LT_CYGPATH in this case.
+    func_to_host_file_result=`cygpath -m "$1"`
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_cygwin_to_w32
+
+
+# func_convert_file_nix_to_w32 ARG
+# Convert file name ARG from *nix to w32 format.  Requires a wine environment
+# and a working winepath. Returns result in func_to_host_file_result.
+func_convert_file_nix_to_w32 ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    func_convert_core_file_wine_to_w32 "$1"
+    func_to_host_file_result="$func_convert_core_file_wine_to_w32_result"
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_w32
+
+
+# func_convert_file_msys_to_cygwin ARG
+# Convert file name ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_file_msys_to_cygwin ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_msys_to_w32_result"
+    func_to_host_file_result="$func_cygpath_result"
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_cygwin
+
+
+# func_convert_file_nix_to_cygwin ARG
+# Convert file name ARG from *nix to Cygwin format.  Requires Cygwin installed
+# in a wine environment, working winepath, and LT_CYGPATH set.  Returns result
+# in func_to_host_file_result.
+func_convert_file_nix_to_cygwin ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
+    func_convert_core_file_wine_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
+    func_to_host_file_result="$func_cygpath_result"
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_cygwin
+
+
+#############################################
+# $build to $host PATH CONVERSION FUNCTIONS #
+#############################################
+# invoked via `$to_host_path_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# The result will be available in $func_to_host_path_result.
+#
+# Path separators are also converted from $build format to $host format.  If
+# ARG begins or ends with a path separator character, it is preserved (but
+# converted to $host format) on output.
+#
+# All path conversion functions are named using the following convention:
+#   file name conversion function    : func_convert_file_X_to_Y ()
+#   path conversion function         : func_convert_path_X_to_Y ()
+# where, for any given $build/$host combination the 'X_to_Y' value is the
+# same.  If conversion functions are added for new $build/$host combinations,
+# the two new functions must follow this pattern, or func_init_to_host_path_cmd
+# will break.
+
+
+# func_init_to_host_path_cmd
+# Ensures that function "pointer" variable $to_host_path_cmd is set to the
+# appropriate value, based on the value of $to_host_file_cmd.
+to_host_path_cmd=
+func_init_to_host_path_cmd ()
+{
+  $opt_debug
+  if test -z "$to_host_path_cmd"; then
+    func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
+    to_host_path_cmd="func_convert_path_${func_stripname_result}"
+  fi
+}
+
+
+# func_to_host_path ARG
+# Converts the path ARG from $build format to $host format. Return result
+# in func_to_host_path_result.
+func_to_host_path ()
+{
+  $opt_debug
+  func_init_to_host_path_cmd
+  $to_host_path_cmd "$1"
+}
+# end func_to_host_path
+
+
+# func_convert_path_noop ARG
+# Copy ARG to func_to_host_path_result.
+func_convert_path_noop ()
+{
+  func_to_host_path_result="$1"
+}
+# end func_convert_path_noop
+
+
+# func_convert_path_msys_to_w32 ARG
+# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_path_result.
+func_convert_path_msys_to_w32 ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from ARG.  MSYS
+    # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
+    # and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result="$func_convert_core_msys_to_w32_result"
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_msys_to_w32
+
+
+# func_convert_path_cygwin_to_w32 ARG
+# Convert path ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_path_cygwin_to_w32 ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_cygwin_to_w32
+
+
+# func_convert_path_nix_to_w32 ARG
+# Convert path ARG from *nix to w32 format.  Requires a wine environment and
+# a working winepath.  Returns result in func_to_host_file_result.
+func_convert_path_nix_to_w32 ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result="$func_convert_core_path_wine_to_w32_result"
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_nix_to_w32
+
+
+# func_convert_path_msys_to_cygwin ARG
+# Convert path ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_path_msys_to_cygwin ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
+    func_to_host_path_result="$func_cygpath_result"
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_msys_to_cygwin
+
+
+# func_convert_path_nix_to_cygwin ARG
+# Convert path ARG from *nix to Cygwin format.  Requires Cygwin installed in a
+# a wine environment, working winepath, and LT_CYGPATH set.  Returns result in
+# func_to_host_file_result.
+func_convert_path_nix_to_cygwin ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from
+    # ARG. msys behavior is inconsistent here, cygpath turns them
+    # into '.;' and ';.', and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
+    func_to_host_path_result="$func_cygpath_result"
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_nix_to_cygwin
+
+
+# func_mode_compile arg...
+func_mode_compile ()
+{
+    $opt_debug
+    # Get the compilation command and the source file.
+    base_compile=
+    srcfile="$nonopt"  #  always keep a non-empty value in "srcfile"
+    suppress_opt=yes
+    suppress_output=
+    arg_mode=normal
+    libobj=
+    later=
+    pie_flag=
+
+    for arg
+    do
+      case $arg_mode in
+      arg  )
+	# do not "continue".  Instead, add this to base_compile
+	lastarg="$arg"
+	arg_mode=normal
+	;;
+
+      target )
+	libobj="$arg"
+	arg_mode=normal
+	continue
+	;;
+
+      normal )
+	# Accept any command-line options.
+	case $arg in
+	-o)
+	  test -n "$libobj" && \
+	    func_fatal_error "you cannot specify \`-o' more than once"
+	  arg_mode=target
+	  continue
+	  ;;
+
+	-pie | -fpie | -fPIE)
+          func_append pie_flag " $arg"
+	  continue
+	  ;;
+
+	-shared | -static | -prefer-pic | -prefer-non-pic)
+	  func_append later " $arg"
+	  continue
+	  ;;
+
+	-no-suppress)
+	  suppress_opt=no
+	  continue
+	  ;;
+
+	-Xcompiler)
+	  arg_mode=arg  #  the next one goes into the "base_compile" arg list
+	  continue      #  The current "srcfile" will either be retained or
+	  ;;            #  replaced later.  I would guess that would be a bug.
+
+	-Wc,*)
+	  func_stripname '-Wc,' '' "$arg"
+	  args=$func_stripname_result
+	  lastarg=
+	  save_ifs="$IFS"; IFS=','
+	  for arg in $args; do
+	    IFS="$save_ifs"
+	    func_append_quoted lastarg "$arg"
+	  done
+	  IFS="$save_ifs"
+	  func_stripname ' ' '' "$lastarg"
+	  lastarg=$func_stripname_result
+
+	  # Add the arguments to base_compile.
+	  func_append base_compile " $lastarg"
+	  continue
+	  ;;
+
+	*)
+	  # Accept the current argument as the source file.
+	  # The previous "srcfile" becomes the current argument.
+	  #
+	  lastarg="$srcfile"
+	  srcfile="$arg"
+	  ;;
+	esac  #  case $arg
+	;;
+      esac    #  case $arg_mode
+
+      # Aesthetically quote the previous argument.
+      func_append_quoted base_compile "$lastarg"
+    done # for arg
+
+    case $arg_mode in
+    arg)
+      func_fatal_error "you must specify an argument for -Xcompile"
+      ;;
+    target)
+      func_fatal_error "you must specify a target with \`-o'"
+      ;;
+    *)
+      # Get the name of the library object.
+      test -z "$libobj" && {
+	func_basename "$srcfile"
+	libobj="$func_basename_result"
+      }
+      ;;
+    esac
+
+    # Recognize several different file suffixes.
+    # If the user specifies -o file.o, it is replaced with file.lo
+    case $libobj in
+    *.[cCFSifmso] | \
+    *.ada | *.adb | *.ads | *.asm | \
+    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
+    *.[fF][09]? | *.for | *.java | *.obj | *.sx | *.cu | *.cup)
+      func_xform "$libobj"
+      libobj=$func_xform_result
+      ;;
+    esac
+
+    case $libobj in
+    *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
+    *)
+      func_fatal_error "cannot determine name of library object from \`$libobj'"
+      ;;
+    esac
+
+    func_infer_tag $base_compile
+
+    for arg in $later; do
+      case $arg in
+      -shared)
+	test "$build_libtool_libs" != yes && \
+	  func_fatal_configuration "can not build a shared library"
+	build_old_libs=no
+	continue
+	;;
+
+      -static)
+	build_libtool_libs=no
+	build_old_libs=yes
+	continue
+	;;
+
+      -prefer-pic)
+	pic_mode=yes
+	continue
+	;;
+
+      -prefer-non-pic)
+	pic_mode=no
+	continue
+	;;
+      esac
+    done
+
+    func_quote_for_eval "$libobj"
+    test "X$libobj" != "X$func_quote_for_eval_result" \
+      && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
+      && func_warning "libobj name \`$libobj' may not contain shell special characters."
+    func_dirname_and_basename "$obj" "/" ""
+    objname="$func_basename_result"
+    xdir="$func_dirname_result"
+    lobj=${xdir}$objdir/$objname
+
+    test -z "$base_compile" && \
+      func_fatal_help "you must specify a compilation command"
+
+    # Delete any leftover library objects.
+    if test "$build_old_libs" = yes; then
+      removelist="$obj $lobj $libobj ${libobj}T"
+    else
+      removelist="$lobj $libobj ${libobj}T"
+    fi
+
+    # On Cygwin there's no "real" PIC flag so we must build both object types
+    case $host_os in
+    cygwin* | mingw* | pw32* | os2* | cegcc*)
+      pic_mode=default
+      ;;
+    esac
+    if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
+      # non-PIC code in shared libraries is not supported
+      pic_mode=default
+    fi
+
+    # Calculate the filename of the output object if compiler does
+    # not support -o with -c
+    if test "$compiler_c_o" = no; then
+      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext}
+      lockfile="$output_obj.lock"
+    else
+      output_obj=
+      need_locks=no
+      lockfile=
+    fi
+
+    # Lock this critical section if it is needed
+    # We use this script file to make the link, it avoids creating a new file
+    if test "$need_locks" = yes; then
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    elif test "$need_locks" = warn; then
+      if test -f "$lockfile"; then
+	$ECHO "\
+*** ERROR, $lockfile exists and contains:
+`cat $lockfile 2>/dev/null`
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+      func_append removelist " $output_obj"
+      $ECHO "$srcfile" > "$lockfile"
+    fi
+
+    $opt_dry_run || $RM $removelist
+    func_append removelist " $lockfile"
+    trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
+
+    func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
+    srcfile=$func_to_tool_file_result
+    func_quote_for_eval "$srcfile"
+    qsrcfile=$func_quote_for_eval_result
+
+    # Only build a PIC object if we are building libtool libraries.
+    if test "$build_libtool_libs" = yes; then
+      # Without this assignment, base_compile gets emptied.
+      fbsd_hideous_sh_bug=$base_compile
+
+      if test "$pic_mode" != no; then
+	command="$base_compile $qsrcfile $pic_flag"
+      else
+	# Don't build PIC code
+	command="$base_compile $qsrcfile"
+      fi
+
+      func_mkdir_p "$xdir$objdir"
+
+      if test -z "$output_obj"; then
+	# Place PIC objects in $objdir
+	func_append command " -o $lobj"
+      fi
+
+      func_show_eval_locale "$command"	\
+          'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
+
+      if test "$need_locks" = warn &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed, then go on to compile the next one
+      if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
+	func_show_eval '$MV "$output_obj" "$lobj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+
+      # Allow error messages only from the first compilation.
+      if test "$suppress_opt" = yes; then
+	suppress_output=' >/dev/null 2>&1'
+      fi
+    fi
+
+    # Only build a position-dependent object if we build old libraries.
+    if test "$build_old_libs" = yes; then
+      if test "$pic_mode" != yes; then
+	# Don't build PIC code
+	command="$base_compile $qsrcfile$pie_flag"
+      else
+	command="$base_compile $qsrcfile $pic_flag"
+      fi
+      if test "$compiler_c_o" = yes; then
+	func_append command " -o $obj"
+      fi
+
+      # Suppress compiler output if we already did a PIC compilation.
+      func_append command "$suppress_output"
+      func_show_eval_locale "$command" \
+        '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
+
+      if test "$need_locks" = warn &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed
+      if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
+	func_show_eval '$MV "$output_obj" "$obj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+    fi
+
+    $opt_dry_run || {
+      func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
+
+      # Unlock the critical section if it was locked
+      if test "$need_locks" != no; then
+	removelist=$lockfile
+        $RM "$lockfile"
+      fi
+    }
+
+    exit $EXIT_SUCCESS
+}
+
+$opt_help || {
+  test "$opt_mode" = compile && func_mode_compile ${1+"$@"}
+}
+
+func_mode_help ()
+{
+    # We need to display help for each of the modes.
+    case $opt_mode in
+      "")
+        # Generic help is extracted from the usage comments
+        # at the start of this file.
+        func_help
+        ;;
+
+      clean)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
+
+Remove files from the build directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
+to RM.
+
+If FILE is a libtool library, object or program, all the files associated
+with it are deleted. Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      compile)
+      $ECHO \
+"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
+
+Compile a source file into a libtool library object.
+
+This mode accepts the following additional options:
+
+  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
+  -no-suppress      do not suppress compiler output for multiple passes
+  -prefer-pic       try to build PIC objects only
+  -prefer-non-pic   try to build non-PIC objects only
+  -shared           do not build a \`.o' file suitable for static linking
+  -static           only build a \`.o' file suitable for static linking
+  -Wc,FLAG          pass FLAG directly to the compiler
+
+COMPILE-COMMAND is a command to be used in creating a \`standard' object file
+from the given SOURCEFILE.
+
+The output file name is determined by removing the directory component from
+SOURCEFILE, then substituting the C source code suffix \`.c' with the
+library object suffix, \`.lo'."
+        ;;
+
+      execute)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
+
+Automatically set library path, then run a program.
+
+This mode accepts the following additional options:
+
+  -dlopen FILE      add the directory containing FILE to the library path
+
+This mode sets the library path environment variable according to \`-dlopen'
+flags.
+
+If any of the ARGS are libtool executable wrappers, then they are translated
+into their corresponding uninstalled binary, and any of their required library
+directories are added to the library path.
+
+Then, COMMAND is executed, with ARGS as arguments."
+        ;;
+
+      finish)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
+
+Complete the installation of libtool libraries.
+
+Each LIBDIR is a directory that contains libtool libraries.
+
+The commands that this mode executes may require superuser privileges.  Use
+the \`--dry-run' option if you just want to see what would be executed."
+        ;;
+
+      install)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
+
+Install executables or libraries.
+
+INSTALL-COMMAND is the installation command.  The first component should be
+either the \`install' or \`cp' program.
+
+The following components of INSTALL-COMMAND are treated specially:
+
+  -inst-prefix-dir PREFIX-DIR  Use PREFIX-DIR as a staging area for installation
+
+The rest of the components are interpreted as arguments to that command (only
+BSD-compatible install options are recognized)."
+        ;;
+
+      link)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
+
+Link object files or libraries together to form another library, or to
+create an executable program.
+
+LINK-COMMAND is a command using the C compiler that you would use to create
+a program from several object files.
+
+The following components of LINK-COMMAND are treated specially:
+
+  -all-static       do not do any dynamic linking at all
+  -avoid-version    do not add a version suffix if possible
+  -bindir BINDIR    specify path to binaries directory (for systems where
+                    libraries must be found in the PATH setting at runtime)
+  -dlopen FILE      \`-dlpreopen' FILE if it cannot be dlopened at runtime
+  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
+  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
+  -export-symbols SYMFILE
+                    try to export only the symbols listed in SYMFILE
+  -export-symbols-regex REGEX
+                    try to export only the symbols matching REGEX
+  -LLIBDIR          search LIBDIR for required installed libraries
+  -lNAME            OUTPUT-FILE requires the installed library libNAME
+  -module           build a library that can dlopened
+  -no-fast-install  disable the fast-install mode
+  -no-install       link a not-installable executable
+  -no-undefined     declare that a library does not refer to external symbols
+  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
+  -objectlist FILE  Use a list of object files found in FILE to specify objects
+  -precious-files-regex REGEX
+                    don't remove output files matching REGEX
+  -release RELEASE  specify package release information
+  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
+  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
+  -shared           only do dynamic linking of libtool libraries
+  -shrext SUFFIX    override the standard shared library file extension
+  -static           do not do any dynamic linking of uninstalled libtool libraries
+  -static-libtool-libs
+                    do not do any dynamic linking of libtool libraries
+  -version-info CURRENT[:REVISION[:AGE]]
+                    specify library version info [each variable defaults to 0]
+  -weak LIBNAME     declare that the target provides the LIBNAME interface
+  -Wc,FLAG
+  -Xcompiler FLAG   pass linker-specific FLAG directly to the compiler
+  -Wl,FLAG
+  -Xlinker FLAG     pass linker-specific FLAG directly to the linker
+  -XCClinker FLAG   pass link-specific FLAG to the compiler driver (CC)
+
+All other options (arguments beginning with \`-') are ignored.
+
+Every other argument is treated as a filename.  Files ending in \`.la' are
+treated as uninstalled libtool libraries, other files are standard or library
+object files.
+
+If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
+only library objects (\`.lo' files) may be specified, and \`-rpath' is
+required, except when creating a convenience library.
+
+If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
+using \`ar' and \`ranlib', or on Windows using \`lib'.
+
+If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
+is created, otherwise an executable program is created."
+        ;;
+
+      uninstall)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
+
+Remove libraries from an installation directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
+to RM.
+
+If FILE is a libtool library, all the files associated with it are deleted.
+Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      *)
+        func_fatal_help "invalid operation mode \`$opt_mode'"
+        ;;
+    esac
+
+    echo
+    $ECHO "Try \`$progname --help' for more information about other modes."
+}
+
+# Now that we've collected a possible --mode arg, show help if necessary
+if $opt_help; then
+  if test "$opt_help" = :; then
+    func_mode_help
+  else
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	func_mode_help
+      done
+    } | sed -n '1p; 2,$s/^Usage:/  or: /p'
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	echo
+	func_mode_help
+      done
+    } |
+    sed '1d
+      /^When reporting/,/^Report/{
+	H
+	d
+      }
+      $x
+      /information about other modes/d
+      /more detailed .*MODE/d
+      s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
+  fi
+  exit $?
+fi
+
+
+# func_mode_execute arg...
+func_mode_execute ()
+{
+    $opt_debug
+    # The first argument is the command name.
+    cmd="$nonopt"
+    test -z "$cmd" && \
+      func_fatal_help "you must specify a COMMAND"
+
+    # Handle -dlopen flags immediately.
+    for file in $opt_dlopen; do
+      test -f "$file" \
+	|| func_fatal_help "\`$file' is not a file"
+
+      dir=
+      case $file in
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "\`$lib' is not a valid libtool archive"
+
+	# Read the libtool library.
+	dlname=
+	library_names=
+	func_source "$file"
+
+	# Skip this library if it cannot be dlopened.
+	if test -z "$dlname"; then
+	  # Warn if it was a shared library.
+	  test -n "$library_names" && \
+	    func_warning "\`$file' was not linked with \`-export-dynamic'"
+	  continue
+	fi
+
+	func_dirname "$file" "" "."
+	dir="$func_dirname_result"
+
+	if test -f "$dir/$objdir/$dlname"; then
+	  func_append dir "/$objdir"
+	else
+	  if test ! -f "$dir/$dlname"; then
+	    func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
+	  fi
+	fi
+	;;
+
+      *.lo)
+	# Just add the directory containing the .lo file.
+	func_dirname "$file" "" "."
+	dir="$func_dirname_result"
+	;;
+
+      *)
+	func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
+	continue
+	;;
+      esac
+
+      # Get the absolute pathname.
+      absdir=`cd "$dir" && pwd`
+      test -n "$absdir" && dir="$absdir"
+
+      # Now add the directory to shlibpath_var.
+      if eval "test -z \"\$$shlibpath_var\""; then
+	eval "$shlibpath_var=\"\$dir\""
+      else
+	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
+      fi
+    done
+
+    # This variable tells wrapper scripts just to set shlibpath_var
+    # rather than running their programs.
+    libtool_execute_magic="$magic"
+
+    # Check if any of the arguments is a wrapper script.
+    args=
+    for file
+    do
+      case $file in
+      -* | *.la | *.lo ) ;;
+      *)
+	# Do a test to see if this is really a libtool program.
+	if func_ltwrapper_script_p "$file"; then
+	  func_source "$file"
+	  # Transform arg to wrapped name.
+	  file="$progdir/$program"
+	elif func_ltwrapper_executable_p "$file"; then
+	  func_ltwrapper_scriptname "$file"
+	  func_source "$func_ltwrapper_scriptname_result"
+	  # Transform arg to wrapped name.
+	  file="$progdir/$program"
+	fi
+	;;
+      esac
+      # Quote arguments (to preserve shell metacharacters).
+      func_append_quoted args "$file"
+    done
+
+    if test "X$opt_dry_run" = Xfalse; then
+      if test -n "$shlibpath_var"; then
+	# Export the shlibpath_var.
+	eval "export $shlibpath_var"
+      fi
+
+      # Restore saved environment variables
+      for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+      do
+	eval "if test \"\${save_$lt_var+set}\" = set; then
+                $lt_var=\$save_$lt_var; export $lt_var
+	      else
+		$lt_unset $lt_var
+	      fi"
+      done
+
+      # Now prepare to actually exec the command.
+      exec_cmd="\$cmd$args"
+    else
+      # Display what would be done.
+      if test -n "$shlibpath_var"; then
+	eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
+	echo "export $shlibpath_var"
+      fi
+      $ECHO "$cmd$args"
+      exit $EXIT_SUCCESS
+    fi
+}
+
+test "$opt_mode" = execute && func_mode_execute ${1+"$@"}
+
+
+# func_mode_finish arg...
+func_mode_finish ()
+{
+    $opt_debug
+    libs=
+    libdirs=
+    admincmds=
+
+    for opt in "$nonopt" ${1+"$@"}
+    do
+      if test -d "$opt"; then
+	func_append libdirs " $opt"
+
+      elif test -f "$opt"; then
+	if func_lalib_unsafe_p "$opt"; then
+	  func_append libs " $opt"
+	else
+	  func_warning "\`$opt' is not a valid libtool archive"
+	fi
+
+      else
+	func_fatal_error "invalid argument \`$opt'"
+      fi
+    done
+
+    if test -n "$libs"; then
+      if test -n "$lt_sysroot"; then
+        sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
+        sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
+      else
+        sysroot_cmd=
+      fi
+
+      # Remove sysroot references
+      if $opt_dry_run; then
+        for lib in $libs; do
+          echo "removing references to $lt_sysroot and \`=' prefixes from $lib"
+        done
+      else
+        tmpdir=`func_mktempdir`
+        for lib in $libs; do
+	  sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
+	    > $tmpdir/tmp-la
+	  mv -f $tmpdir/tmp-la $lib
+	done
+        ${RM}r "$tmpdir"
+      fi
+    fi
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      for libdir in $libdirs; do
+	if test -n "$finish_cmds"; then
+	  # Do each command in the finish commands.
+	  func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
+'"$cmd"'"'
+	fi
+	if test -n "$finish_eval"; then
+	  # Do the single finish_eval.
+	  eval cmds=\"$finish_eval\"
+	  $opt_dry_run || eval "$cmds" || func_append admincmds "
+       $cmds"
+	fi
+      done
+    fi
+
+    # Exit here if they wanted silent mode.
+    $opt_silent && exit $EXIT_SUCCESS
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      echo "----------------------------------------------------------------------"
+      echo "Libraries have been installed in:"
+      for libdir in $libdirs; do
+	$ECHO "   $libdir"
+      done
+      echo
+      echo "If you ever happen to want to link against installed libraries"
+      echo "in a given directory, LIBDIR, you must either use libtool, and"
+      echo "specify the full pathname of the library, or use the \`-LLIBDIR'"
+      echo "flag during linking and do at least one of the following:"
+      if test -n "$shlibpath_var"; then
+	echo "   - add LIBDIR to the \`$shlibpath_var' environment variable"
+	echo "     during execution"
+      fi
+      if test -n "$runpath_var"; then
+	echo "   - add LIBDIR to the \`$runpath_var' environment variable"
+	echo "     during linking"
+      fi
+      if test -n "$hardcode_libdir_flag_spec"; then
+	libdir=LIBDIR
+	eval flag=\"$hardcode_libdir_flag_spec\"
+
+	$ECHO "   - use the \`$flag' linker flag"
+      fi
+      if test -n "$admincmds"; then
+	$ECHO "   - have your system administrator run these commands:$admincmds"
+      fi
+      if test -f /etc/ld.so.conf; then
+	echo "   - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
+      fi
+      echo
+
+      echo "See any operating system documentation about shared libraries for"
+      case $host in
+	solaris2.[6789]|solaris2.1[0-9])
+	  echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
+	  echo "pages."
+	  ;;
+	*)
+	  echo "more information, such as the ld(1) and ld.so(8) manual pages."
+	  ;;
+      esac
+      echo "----------------------------------------------------------------------"
+    fi
+    exit $EXIT_SUCCESS
+}
+
+test "$opt_mode" = finish && func_mode_finish ${1+"$@"}
+
+
+# func_mode_install arg...
+func_mode_install ()
+{
+    $opt_debug
+    # There may be an optional sh(1) argument at the beginning of
+    # install_prog (especially on Windows NT).
+    if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
+       # Allow the use of GNU shtool's install command.
+       case $nonopt in *shtool*) :;; *) false;; esac; then
+      # Aesthetically quote it.
+      func_quote_for_eval "$nonopt"
+      install_prog="$func_quote_for_eval_result "
+      arg=$1
+      shift
+    else
+      install_prog=
+      arg=$nonopt
+    fi
+
+    # The real first argument should be the name of the installation program.
+    # Aesthetically quote it.
+    func_quote_for_eval "$arg"
+    func_append install_prog "$func_quote_for_eval_result"
+    install_shared_prog=$install_prog
+    case " $install_prog " in
+      *[\\\ /]cp\ *) install_cp=: ;;
+      *) install_cp=false ;;
+    esac
+
+    # We need to accept at least all the BSD install flags.
+    dest=
+    files=
+    opts=
+    prev=
+    install_type=
+    isdir=no
+    stripme=
+    no_mode=:
+    for arg
+    do
+      arg2=
+      if test -n "$dest"; then
+	func_append files " $dest"
+	dest=$arg
+	continue
+      fi
+
+      case $arg in
+      -d) isdir=yes ;;
+      -f)
+	if $install_cp; then :; else
+	  prev=$arg
+	fi
+	;;
+      -g | -m | -o)
+	prev=$arg
+	;;
+      -s)
+	stripme=" -s"
+	continue
+	;;
+      -*)
+	;;
+      *)
+	# If the previous option needed an argument, then skip it.
+	if test -n "$prev"; then
+	  if test "x$prev" = x-m && test -n "$install_override_mode"; then
+	    arg2=$install_override_mode
+	    no_mode=false
+	  fi
+	  prev=
+	else
+	  dest=$arg
+	  continue
+	fi
+	;;
+      esac
+
+      # Aesthetically quote the argument.
+      func_quote_for_eval "$arg"
+      func_append install_prog " $func_quote_for_eval_result"
+      if test -n "$arg2"; then
+	func_quote_for_eval "$arg2"
+      fi
+      func_append install_shared_prog " $func_quote_for_eval_result"
+    done
+
+    test -z "$install_prog" && \
+      func_fatal_help "you must specify an install program"
+
+    test -n "$prev" && \
+      func_fatal_help "the \`$prev' option requires an argument"
+
+    if test -n "$install_override_mode" && $no_mode; then
+      if $install_cp; then :; else
+	func_quote_for_eval "$install_override_mode"
+	func_append install_shared_prog " -m $func_quote_for_eval_result"
+      fi
+    fi
+
+    if test -z "$files"; then
+      if test -z "$dest"; then
+	func_fatal_help "no file or destination specified"
+      else
+	func_fatal_help "you must specify a destination"
+      fi
+    fi
+
+    # Strip any trailing slash from the destination.
+    func_stripname '' '/' "$dest"
+    dest=$func_stripname_result
+
+    # Check to see that the destination is a directory.
+    test -d "$dest" && isdir=yes
+    if test "$isdir" = yes; then
+      destdir="$dest"
+      destname=
+    else
+      func_dirname_and_basename "$dest" "" "."
+      destdir="$func_dirname_result"
+      destname="$func_basename_result"
+
+      # Not a directory, so check to see that there is only one file specified.
+      set dummy $files; shift
+      test "$#" -gt 1 && \
+	func_fatal_help "\`$dest' is not a directory"
+    fi
+    case $destdir in
+    [\\/]* | [A-Za-z]:[\\/]*) ;;
+    *)
+      for file in $files; do
+	case $file in
+	*.lo) ;;
+	*)
+	  func_fatal_help "\`$destdir' must be an absolute directory name"
+	  ;;
+	esac
+      done
+      ;;
+    esac
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic="$magic"
+
+    staticlibs=
+    future_libdirs=
+    current_libdirs=
+    for file in $files; do
+
+      # Do each installation.
+      case $file in
+      *.$libext)
+	# Do the static libraries later.
+	func_append staticlibs " $file"
+	;;
+
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "\`$file' is not a valid libtool archive"
+
+	library_names=
+	old_library=
+	relink_command=
+	func_source "$file"
+
+	# Add the libdir to current_libdirs if it is the destination.
+	if test "X$destdir" = "X$libdir"; then
+	  case "$current_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append current_libdirs " $libdir" ;;
+	  esac
+	else
+	  # Note the libdir as a future libdir.
+	  case "$future_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append future_libdirs " $libdir" ;;
+	  esac
+	fi
+
+	func_dirname "$file" "/" ""
+	dir="$func_dirname_result"
+	func_append dir "$objdir"
+
+	if test -n "$relink_command"; then
+	  # Determine the prefix the user has applied to our future dir.
+	  inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
+
+	  # Don't allow the user to place us outside of our expected
+	  # location b/c this prevents finding dependent libraries that
+	  # are installed to the same prefix.
+	  # At present, this check doesn't affect windows .dll's that
+	  # are installed into $libdir/../bin (currently, that works fine)
+	  # but it's something to keep an eye on.
+	  test "$inst_prefix_dir" = "$destdir" && \
+	    func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"
+
+	  if test -n "$inst_prefix_dir"; then
+	    # Stick the inst_prefix_dir data into the link command.
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
+	  else
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
+	  fi
+
+	  func_warning "relinking \`$file'"
+	  func_show_eval "$relink_command" \
+	    'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
+	fi
+
+	# See the names of the shared library.
+	set dummy $library_names; shift
+	if test -n "$1"; then
+	  realname="$1"
+	  shift
+
+	  srcname="$realname"
+	  test -n "$relink_command" && srcname="$realname"T
+
+	  # Install the shared library and build the symlinks.
+	  func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
+	      'exit $?'
+	  tstripme="$stripme"
+	  case $host_os in
+	  cygwin* | mingw* | pw32* | cegcc*)
+	    case $realname in
+	    *.dll.a)
+	      tstripme=""
+	      ;;
+	    esac
+	    ;;
+	  esac
+	  if test -n "$tstripme" && test -n "$striplib"; then
+	    func_show_eval "$striplib $destdir/$realname" 'exit $?'
+	  fi
+
+	  if test "$#" -gt 0; then
+	    # Delete the old symlinks, and create new ones.
+	    # Try `ln -sf' first, because the `ln' binary might depend on
+	    # the symlink we replace!  Solaris /bin/ln does not understand -f,
+	    # so we also need to try rm && ln -s.
+	    for linkname
+	    do
+	      test "$linkname" != "$realname" \
+		&& func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
+	    done
+	  fi
+
+	  # Do each command in the postinstall commands.
+	  lib="$destdir/$realname"
+	  func_execute_cmds "$postinstall_cmds" 'exit $?'
+	fi
+
+	# Install the pseudo-library for information purposes.
+	func_basename "$file"
+	name="$func_basename_result"
+	instname="$dir/$name"i
+	func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
+
+	# Maybe install the static library, too.
+	test -n "$old_library" && func_append staticlibs " $dir/$old_library"
+	;;
+
+      *.lo)
+	# Install (i.e. copy) a libtool object.
+
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile="$destdir/$destname"
+	else
+	  func_basename "$file"
+	  destfile="$func_basename_result"
+	  destfile="$destdir/$destfile"
+	fi
+
+	# Deduce the name of the destination old-style object file.
+	case $destfile in
+	*.lo)
+	  func_lo2o "$destfile"
+	  staticdest=$func_lo2o_result
+	  ;;
+	*.$objext)
+	  staticdest="$destfile"
+	  destfile=
+	  ;;
+	*)
+	  func_fatal_help "cannot copy a libtool object to \`$destfile'"
+	  ;;
+	esac
+
+	# Install the libtool object if requested.
+	test -n "$destfile" && \
+	  func_show_eval "$install_prog $file $destfile" 'exit $?'
+
+	# Install the old object if enabled.
+	if test "$build_old_libs" = yes; then
+	  # Deduce the name of the old-style object file.
+	  func_lo2o "$file"
+	  staticobj=$func_lo2o_result
+	  func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
+	fi
+	exit $EXIT_SUCCESS
+	;;
+
+      *)
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile="$destdir/$destname"
+	else
+	  func_basename "$file"
+	  destfile="$func_basename_result"
+	  destfile="$destdir/$destfile"
+	fi
+
+	# If the file is missing, and there is a .exe on the end, strip it
+	# because it is most likely a libtool script we actually want to
+	# install
+	stripped_ext=""
+	case $file in
+	  *.exe)
+	    if test ! -f "$file"; then
+	      func_stripname '' '.exe' "$file"
+	      file=$func_stripname_result
+	      stripped_ext=".exe"
+	    fi
+	    ;;
+	esac
+
+	# Do a test to see if this is really a libtool program.
+	case $host in
+	*cygwin* | *mingw*)
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      wrapper=$func_ltwrapper_scriptname_result
+	    else
+	      func_stripname '' '.exe' "$file"
+	      wrapper=$func_stripname_result
+	    fi
+	    ;;
+	*)
+	    wrapper=$file
+	    ;;
+	esac
+	if func_ltwrapper_script_p "$wrapper"; then
+	  notinst_deplibs=
+	  relink_command=
+
+	  func_source "$wrapper"
+
+	  # Check the variables that should have been set.
+	  test -z "$generated_by_libtool_version" && \
+	    func_fatal_error "invalid libtool wrapper script \`$wrapper'"
+
+	  finalize=yes
+	  for lib in $notinst_deplibs; do
+	    # Check to see that each library is installed.
+	    libdir=
+	    if test -f "$lib"; then
+	      func_source "$lib"
+	    fi
+	    libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test
+	    if test -n "$libdir" && test ! -f "$libfile"; then
+	      func_warning "\`$lib' has not been installed in \`$libdir'"
+	      finalize=no
+	    fi
+	  done
+
+	  relink_command=
+	  func_source "$wrapper"
+
+	  outputname=
+	  if test "$fast_install" = no && test -n "$relink_command"; then
+	    $opt_dry_run || {
+	      if test "$finalize" = yes; then
+	        tmpdir=`func_mktempdir`
+		func_basename "$file$stripped_ext"
+		file="$func_basename_result"
+	        outputname="$tmpdir/$file"
+	        # Replace the output file specification.
+	        relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
+
+	        $opt_silent || {
+	          func_quote_for_expand "$relink_command"
+		  eval "func_echo $func_quote_for_expand_result"
+	        }
+	        if eval "$relink_command"; then :
+	          else
+		  func_error "error: relink \`$file' with the above command before installing it"
+		  $opt_dry_run || ${RM}r "$tmpdir"
+		  continue
+	        fi
+	        file="$outputname"
+	      else
+	        func_warning "cannot relink \`$file'"
+	      fi
+	    }
+	  else
+	    # Install the binary that we compiled earlier.
+	    file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
+	  fi
+	fi
+
+	# remove .exe since cygwin /usr/bin/install will append another
+	# one anyway
+	case $install_prog,$host in
+	*/usr/bin/install*,*cygwin*)
+	  case $file:$destfile in
+	  *.exe:*.exe)
+	    # this is ok
+	    ;;
+	  *.exe:*)
+	    destfile=$destfile.exe
+	    ;;
+	  *:*.exe)
+	    func_stripname '' '.exe' "$destfile"
+	    destfile=$func_stripname_result
+	    ;;
+	  esac
+	  ;;
+	esac
+	func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
+	$opt_dry_run || if test -n "$outputname"; then
+	  ${RM}r "$tmpdir"
+	fi
+	;;
+      esac
+    done
+
+    for file in $staticlibs; do
+      func_basename "$file"
+      name="$func_basename_result"
+
+      # Set up the ranlib parameters.
+      oldlib="$destdir/$name"
+
+      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
+
+      if test -n "$stripme" && test -n "$old_striplib"; then
+	func_show_eval "$old_striplib $oldlib" 'exit $?'
+      fi
+
+      # Do each command in the postinstall commands.
+      func_execute_cmds "$old_postinstall_cmds" 'exit $?'
+    done
+
+    test -n "$future_libdirs" && \
+      func_warning "remember to run \`$progname --finish$future_libdirs'"
+
+    if test -n "$current_libdirs"; then
+      # Maybe just do a dry run.
+      $opt_dry_run && current_libdirs=" -n$current_libdirs"
+      exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
+    else
+      exit $EXIT_SUCCESS
+    fi
+}
+
+test "$opt_mode" = install && func_mode_install ${1+"$@"}
+
+
+# func_generate_dlsyms outputname originator pic_p
+# Extract symbols from dlprefiles and create ${outputname}S.o with
+# a dlpreopen symbol table.
+func_generate_dlsyms ()
+{
+    $opt_debug
+    my_outputname="$1"
+    my_originator="$2"
+    my_pic_p="${3-no}"
+    my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
+    my_dlsyms=
+
+    if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+      if test -n "$NM" && test -n "$global_symbol_pipe"; then
+	my_dlsyms="${my_outputname}S.c"
+      else
+	func_error "not configured to extract global symbols from dlpreopened files"
+      fi
+    fi
+
+    if test -n "$my_dlsyms"; then
+      case $my_dlsyms in
+      "") ;;
+      *.c)
+	# Discover the nlist of each of the dlfiles.
+	nlist="$output_objdir/${my_outputname}.nm"
+
+	func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
+
+	# Parse the name list into a source file.
+	func_verbose "creating $output_objdir/$my_dlsyms"
+
+	$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
+/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
+/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */
+
+#ifdef __cplusplus
+extern \"C\" {
+#endif
+
+#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
+#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
+#endif
+
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
+/* DATA imports from DLLs on WIN32 con't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined(__osf__)
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+/* External symbol declarations for the compiler. */\
+"
+
+	if test "$dlself" = yes; then
+	  func_verbose "generating symbol list for \`$output'"
+
+	  $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
+
+	  # Add our own program objects to the symbol list.
+	  progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	  for progfile in $progfiles; do
+	    func_to_tool_file "$progfile" func_convert_file_msys_to_w32
+	    func_verbose "extracting global C symbols from \`$func_to_tool_file_result'"
+	    $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
+	  done
+
+	  if test -n "$exclude_expsyms"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  if test -n "$export_symbols_regex"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  # Prepare the list of exported symbols
+	  if test -z "$export_symbols"; then
+	    export_symbols="$output_objdir/$outputname.exp"
+	    $opt_dry_run || {
+	      $RM $export_symbols
+	      eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
+	      case $host in
+	      *cygwin* | *mingw* | *cegcc* )
+                eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+                eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
+	        ;;
+	      esac
+	    }
+	  else
+	    $opt_dry_run || {
+	      eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
+	      eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	      case $host in
+	        *cygwin* | *mingw* | *cegcc* )
+	          eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+	          eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
+	          ;;
+	      esac
+	    }
+	  fi
+	fi
+
+	for dlprefile in $dlprefiles; do
+	  func_verbose "extracting global C symbols from \`$dlprefile'"
+	  func_basename "$dlprefile"
+	  name="$func_basename_result"
+          case $host in
+	    *cygwin* | *mingw* | *cegcc* )
+	      # if an import library, we need to obtain dlname
+	      if func_win32_import_lib_p "$dlprefile"; then
+	        func_tr_sh "$dlprefile"
+	        eval "curr_lafile=\$libfile_$func_tr_sh_result"
+	        dlprefile_dlbasename=""
+	        if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
+	          # Use subshell, to avoid clobbering current variable values
+	          dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
+	          if test -n "$dlprefile_dlname" ; then
+	            func_basename "$dlprefile_dlname"
+	            dlprefile_dlbasename="$func_basename_result"
+	          else
+	            # no lafile. user explicitly requested -dlpreopen <import library>.
+	            $sharedlib_from_linklib_cmd "$dlprefile"
+	            dlprefile_dlbasename=$sharedlib_from_linklib_result
+	          fi
+	        fi
+	        $opt_dry_run || {
+	          if test -n "$dlprefile_dlbasename" ; then
+	            eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
+	          else
+	            func_warning "Could not compute DLL name from $name"
+	            eval '$ECHO ": $name " >> "$nlist"'
+	          fi
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
+	            $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
+	        }
+	      else # not an import lib
+	        $opt_dry_run || {
+	          eval '$ECHO ": $name " >> "$nlist"'
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	        }
+	      fi
+	    ;;
+	    *)
+	      $opt_dry_run || {
+	        eval '$ECHO ": $name " >> "$nlist"'
+	        func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	        eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	      }
+	    ;;
+          esac
+	done
+
+	$opt_dry_run || {
+	  # Make sure we have at least an empty file.
+	  test -f "$nlist" || : > "$nlist"
+
+	  if test -n "$exclude_expsyms"; then
+	    $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
+	    $MV "$nlist"T "$nlist"
+	  fi
+
+	  # Try sorting and uniquifying the output.
+	  if $GREP -v "^: " < "$nlist" |
+	      if sort -k 3 </dev/null >/dev/null 2>&1; then
+		sort -k 3
+	      else
+		sort +2
+	      fi |
+	      uniq > "$nlist"S; then
+	    :
+	  else
+	    $GREP -v "^: " < "$nlist" > "$nlist"S
+	  fi
+
+	  if test -f "$nlist"S; then
+	    eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
+	  else
+	    echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
+	  fi
+
+	  echo >> "$output_objdir/$my_dlsyms" "\
+
+/* The mapping between symbol names and symbols.  */
+typedef struct {
+  const char *name;
+  void *address;
+} lt_dlsymlist;
+extern LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[];
+LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[] =
+{\
+  { \"$my_originator\", (void *) 0 },"
+
+	  case $need_lib_prefix in
+	  no)
+	    eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  *)
+	    eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  esac
+	  echo >> "$output_objdir/$my_dlsyms" "\
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt_${my_prefix}_LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif\
+"
+	} # !$opt_dry_run
+
+	pic_flag_for_symtable=
+	case "$compile_command " in
+	*" -static "*) ;;
+	*)
+	  case $host in
+	  # compiling the symbol table file with pic_flag works around
+	  # a FreeBSD bug that causes programs to crash when -lm is
+	  # linked before any other PIC object.  But we must not use
+	  # pic_flag when linking with -static.  The problem exists in
+	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
+	  *-*-freebsd2*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
+	  *-*-hpux*)
+	    pic_flag_for_symtable=" $pic_flag"  ;;
+	  *)
+	    if test "X$my_pic_p" != Xno; then
+	      pic_flag_for_symtable=" $pic_flag"
+	    fi
+	    ;;
+	  esac
+	  ;;
+	esac
+	symtab_cflags=
+	for arg in $LTCFLAGS; do
+	  case $arg in
+	  -pie | -fpie | -fPIE) ;;
+	  *) func_append symtab_cflags " $arg" ;;
+	  esac
+	done
+
+	# Now compile the dynamic symbol file.
+	func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
+
+	# Clean up the generated files.
+	func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'
+
+	# Transform the symbol file into the correct name.
+	symfileobj="$output_objdir/${my_outputname}S.$objext"
+	case $host in
+	*cygwin* | *mingw* | *cegcc* )
+	  if test -f "$output_objdir/$my_outputname.def"; then
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	  else
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  fi
+	  ;;
+	*)
+	  compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  ;;
+	esac
+	;;
+      *)
+	func_fatal_error "unknown suffix for \`$my_dlsyms'"
+	;;
+      esac
+    else
+      # We keep going just in case the user didn't refer to
+      # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
+      # really was required.
+
+      # Nullify the symbol file.
+      compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
+      finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
+    fi
+}
+
+# func_win32_libid arg
+# return the library type of file 'arg'
+#
+# Need a lot of goo to handle *both* DLLs and import libs
+# Has to be a shell function in order to 'eat' the argument
+# that is supplied when $file_magic_command is called.
+# Despite the name, also deal with 64 bit binaries.
+func_win32_libid ()
+{
+  $opt_debug
+  win32_libid_type="unknown"
+  win32_fileres=`file -L $1 2>/dev/null`
+  case $win32_fileres in
+  *ar\ archive\ import\ library*) # definitely import
+    win32_libid_type="x86 archive import"
+    ;;
+  *ar\ archive*) # could be an import, or static
+    # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
+    if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
+       $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
+      func_to_tool_file "$1" func_convert_file_msys_to_w32
+      win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
+	$SED -n -e '
+	    1,100{
+		/ I /{
+		    s,.*,import,
+		    p
+		    q
+		}
+	    }'`
+      case $win32_nmres in
+      import*)  win32_libid_type="x86 archive import";;
+      *)        win32_libid_type="x86 archive static";;
+      esac
+    fi
+    ;;
+  *DLL*)
+    win32_libid_type="x86 DLL"
+    ;;
+  *executable*) # but shell scripts are "executable" too...
+    case $win32_fileres in
+    *MS\ Windows\ PE\ Intel*)
+      win32_libid_type="x86 DLL"
+      ;;
+    esac
+    ;;
+  esac
+  $ECHO "$win32_libid_type"
+}
+
+# func_cygming_dll_for_implib ARG
+#
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib ()
+{
+  $opt_debug
+  sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
+}
+
+# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
+#
+# The is the core of a fallback implementation of a
+# platform-specific function to extract the name of the
+# DLL associated with the specified import library LIBNAME.
+#
+# SECTION_NAME is either .idata$6 or .idata$7, depending
+# on the platform and compiler that created the implib.
+#
+# Echos the name of the DLL associated with the
+# specified import library.
+func_cygming_dll_for_implib_fallback_core ()
+{
+  $opt_debug
+  match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
+  $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
+    $SED '/^Contents of section '"$match_literal"':/{
+      # Place marker at beginning of archive member dllname section
+      s/.*/====MARK====/
+      p
+      d
+    }
+    # These lines can sometimes be longer than 43 characters, but
+    # are always uninteresting
+    /:[	 ]*file format pe[i]\{,1\}-/d
+    /^In archive [^:]*:/d
+    # Ensure marker is printed
+    /^====MARK====/p
+    # Remove all lines with less than 43 characters
+    /^.\{43\}/!d
+    # From remaining lines, remove first 43 characters
+    s/^.\{43\}//' |
+    $SED -n '
+      # Join marker and all lines until next marker into a single line
+      /^====MARK====/ b para
+      H
+      $ b para
+      b
+      :para
+      x
+      s/\n//g
+      # Remove the marker
+      s/^====MARK====//
+      # Remove trailing dots and whitespace
+      s/[\. \t]*$//
+      # Print
+      /./p' |
+    # we now have a list, one entry per line, of the stringified
+    # contents of the appropriate section of all members of the
+    # archive which possess that section. Heuristic: eliminate
+    # all those which have a first or second character that is
+    # a '.' (that is, objdump's representation of an unprintable
+    # character.) This should work for all archives with less than
+    # 0x302f exports -- but will fail for DLLs whose name actually
+    # begins with a literal '.' or a single character followed by
+    # a '.'.
+    #
+    # Of those that remain, print the first one.
+    $SED -e '/^\./d;/^.\./d;q'
+}
+
+# func_cygming_gnu_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is a GNU/binutils-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_gnu_implib_p ()
+{
+  $opt_debug
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
+  test -n "$func_cygming_gnu_implib_tmp"
+}
+
+# func_cygming_ms_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is an MS-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_ms_implib_p ()
+{
+  $opt_debug
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
+  test -n "$func_cygming_ms_implib_tmp"
+}
+
+# func_cygming_dll_for_implib_fallback ARG
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+#
+# This fallback implementation is for use when $DLLTOOL
+# does not support the --identify-strict option.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib_fallback ()
+{
+  $opt_debug
+  if func_cygming_gnu_implib_p "$1" ; then
+    # binutils import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
+  elif func_cygming_ms_implib_p "$1" ; then
+    # ms-generated import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
+  else
+    # unknown
+    sharedlib_from_linklib_result=""
+  fi
+}
+
+
+# func_extract_an_archive dir oldlib
+func_extract_an_archive ()
+{
+    $opt_debug
+    f_ex_an_ar_dir="$1"; shift
+    f_ex_an_ar_oldlib="$1"
+    if test "$lock_old_archive_extraction" = yes; then
+      lockfile=$f_ex_an_ar_oldlib.lock
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    fi
+    func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
+		   'stat=$?; rm -f "$lockfile"; exit $stat'
+    if test "$lock_old_archive_extraction" = yes; then
+      $opt_dry_run || rm -f "$lockfile"
+    fi
+    if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
+     :
+    else
+      func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
+    fi
+}
+
+
+# func_extract_archives gentop oldlib ...
+func_extract_archives ()
+{
+    $opt_debug
+    my_gentop="$1"; shift
+    my_oldlibs=${1+"$@"}
+    my_oldobjs=""
+    my_xlib=""
+    my_xabs=""
+    my_xdir=""
+
+    for my_xlib in $my_oldlibs; do
+      # Extract the objects.
+      case $my_xlib in
+	[\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
+	*) my_xabs=`pwd`"/$my_xlib" ;;
+      esac
+      func_basename "$my_xlib"
+      my_xlib="$func_basename_result"
+      my_xlib_u=$my_xlib
+      while :; do
+        case " $extracted_archives " in
+	*" $my_xlib_u "*)
+	  func_arith $extracted_serial + 1
+	  extracted_serial=$func_arith_result
+	  my_xlib_u=lt$extracted_serial-$my_xlib ;;
+	*) break ;;
+	esac
+      done
+      extracted_archives="$extracted_archives $my_xlib_u"
+      my_xdir="$my_gentop/$my_xlib_u"
+
+      func_mkdir_p "$my_xdir"
+
+      case $host in
+      *-darwin*)
+	func_verbose "Extracting $my_xabs"
+	# Do not bother doing anything if just a dry run
+	$opt_dry_run || {
+	  darwin_orig_dir=`pwd`
+	  cd $my_xdir || exit $?
+	  darwin_archive=$my_xabs
+	  darwin_curdir=`pwd`
+	  darwin_base_archive=`basename "$darwin_archive"`
+	  darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
+	  if test -n "$darwin_arches"; then
+	    darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
+	    darwin_arch=
+	    func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
+	    for darwin_arch in  $darwin_arches ; do
+	      func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
+	      $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
+	      cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
+	      func_extract_an_archive "`pwd`" "${darwin_base_archive}"
+	      cd "$darwin_curdir"
+	      $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
+	    done # $darwin_arches
+            ## Okay now we've a bunch of thin objects, gotta fatten them up :)
+	    darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
+	    darwin_file=
+	    darwin_files=
+	    for darwin_file in $darwin_filelist; do
+	      darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
+	      $LIPO -create -output "$darwin_file" $darwin_files
+	    done # $darwin_filelist
+	    $RM -rf unfat-$$
+	    cd "$darwin_orig_dir"
+	  else
+	    cd $darwin_orig_dir
+	    func_extract_an_archive "$my_xdir" "$my_xabs"
+	  fi # $darwin_arches
+	} # !$opt_dry_run
+	;;
+      *)
+        func_extract_an_archive "$my_xdir" "$my_xabs"
+	;;
+      esac
+      my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
+    done
+
+    func_extract_archives_result="$my_oldobjs"
+}
+
+
+# func_emit_wrapper [arg=no]
+#
+# Emit a libtool wrapper script on stdout.
+# Don't directly open a file because we may want to
+# incorporate the script contents within a cygwin/mingw
+# wrapper executable.  Must ONLY be called from within
+# func_mode_link because it depends on a number of variables
+# set therein.
+#
+# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
+# variable will take.  If 'yes', then the emitted script
+# will assume that the directory in which it is stored is
+# the $objdir directory.  This is a cygwin/mingw-specific
+# behavior.
+func_emit_wrapper ()
+{
+	func_emit_wrapper_arg1=${1-no}
+
+	$ECHO "\
+#! $SHELL
+
+# $output - temporary wrapper script for $objdir/$outputname
+# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+#
+# The $output program cannot be directly executed until all the libtool
+# libraries that it depends on are installed.
+#
+# This wrapper script should never be moved out of the build directory.
+# If it is, it will not operate correctly.
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='$sed_quote_subst'
+
+# Be Bourne compatible
+if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+relink_command=\"$relink_command\"
+
+# This environment variable determines our operation mode.
+if test \"\$libtool_install_magic\" = \"$magic\"; then
+  # install mode needs the following variables:
+  generated_by_libtool_version='$macro_version'
+  notinst_deplibs='$notinst_deplibs'
+else
+  # When we are sourced in execute mode, \$file and \$ECHO are already set.
+  if test \"\$libtool_execute_magic\" != \"$magic\"; then
+    file=\"\$0\""
+
+    qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
+    $ECHO "\
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+    ECHO=\"$qECHO\"
+  fi
+
+# Very basic option parsing. These options are (a) specific to
+# the libtool wrapper, (b) are identical between the wrapper
+# /script/ and the wrapper /executable/ which is used only on
+# windows platforms, and (c) all begin with the string "--lt-"
+# (application programs are unlikely to have options which match
+# this pattern).
+#
+# There are only two supported options: --lt-debug and
+# --lt-dump-script. There is, deliberately, no --lt-help.
+#
+# The first argument to this parsing function should be the
+# script's $0 value, followed by "$@".
+lt_option_debug=
+func_parse_lt_options ()
+{
+  lt_script_arg0=\$0
+  shift
+  for lt_opt
+  do
+    case \"\$lt_opt\" in
+    --lt-debug) lt_option_debug=1 ;;
+    --lt-dump-script)
+        lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
+        test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
+        lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
+        cat \"\$lt_dump_D/\$lt_dump_F\"
+        exit 0
+      ;;
+    --lt-*)
+        \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
+        exit 1
+      ;;
+    esac
+  done
+
+  # Print the debug banner immediately:
+  if test -n \"\$lt_option_debug\"; then
+    echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2
+  fi
+}
+
+# Used when --lt-debug. Prints its arguments to stdout
+# (redirection is the responsibility of the caller)
+func_lt_dump_args ()
+{
+  lt_dump_args_N=1;
+  for lt_arg
+  do
+    \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\"
+    lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
+  done
+}
+
+# Core function for launching the target application
+func_exec_program_core ()
+{
+"
+  case $host in
+  # Backslashes separate directories on plain windows
+  *-*-mingw | *-*-os2* | *-cegcc*)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
+"
+    ;;
+
+  *)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir/\$program\" \${1+\"\$@\"}
+"
+    ;;
+  esac
+  $ECHO "\
+      \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
+      exit 1
+}
+
+# A function to encapsulate launching the target application
+# Strips options in the --lt-* namespace from \$@ and
+# launches target application with the remaining arguments.
+func_exec_program ()
+{
+  for lt_wr_arg
+  do
+    case \$lt_wr_arg in
+    --lt-*) ;;
+    *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
+    esac
+    shift
+  done
+  func_exec_program_core \${1+\"\$@\"}
+}
+
+  # Parse options
+  func_parse_lt_options \"\$0\" \${1+\"\$@\"}
+
+  # Find the directory that this script lives in.
+  thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
+  test \"x\$thisdir\" = \"x\$file\" && thisdir=.
+
+  # Follow symbolic links until we get to the real thisdir.
+  file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
+  while test -n \"\$file\"; do
+    destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`
+
+    # If there was a directory component, then change thisdir.
+    if test \"x\$destdir\" != \"x\$file\"; then
+      case \"\$destdir\" in
+      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
+      *) thisdir=\"\$thisdir/\$destdir\" ;;
+      esac
+    fi
+
+    file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
+    file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
+  done
+
+  # Usually 'no', except on cygwin/mingw when embedded into
+  # the cwrapper.
+  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
+  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
+    # special case for '.'
+    if test \"\$thisdir\" = \".\"; then
+      thisdir=\`pwd\`
+    fi
+    # remove .libs from thisdir
+    case \"\$thisdir\" in
+    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
+    $objdir )   thisdir=. ;;
+    esac
+  fi
+
+  # Try to get the absolute directory name.
+  absdir=\`cd \"\$thisdir\" && pwd\`
+  test -n \"\$absdir\" && thisdir=\"\$absdir\"
+"
+
+	if test "$fast_install" = yes; then
+	  $ECHO "\
+  program=lt-'$outputname'$exeext
+  progdir=\"\$thisdir/$objdir\"
+
+  if test ! -f \"\$progdir/\$program\" ||
+     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
+       test \"X\$file\" != \"X\$progdir/\$program\"; }; then
+
+    file=\"\$\$-\$program\"
+
+    if test ! -d \"\$progdir\"; then
+      $MKDIR \"\$progdir\"
+    else
+      $RM \"\$progdir/\$file\"
+    fi"
+
+	  $ECHO "\
+
+    # relink executable if necessary
+    if test -n \"\$relink_command\"; then
+      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
+      else
+	$ECHO \"\$relink_command_output\" >&2
+	$RM \"\$progdir/\$file\"
+	exit 1
+      fi
+    fi
+
+    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
+    { $RM \"\$progdir/\$program\";
+      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
+    $RM \"\$progdir/\$file\"
+  fi"
+	else
+	  $ECHO "\
+  program='$outputname'
+  progdir=\"\$thisdir/$objdir\"
+"
+	fi
+
+	$ECHO "\
+
+  if test -f \"\$progdir/\$program\"; then"
+
+	# fixup the dll searchpath if we need to.
+	#
+	# Fix the DLL searchpath if we need to.  Do this before prepending
+	# to shlibpath, because on Windows, both are PATH and uninstalled
+	# libraries must come first.
+	if test -n "$dllsearchpath"; then
+	  $ECHO "\
+    # Add the dll search path components to the executable PATH
+    PATH=$dllsearchpath:\$PATH
+"
+	fi
+
+	# Export our shlibpath_var if we have one.
+	if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+	  $ECHO "\
+    # Add our own library path to $shlibpath_var
+    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
+
+    # Some systems cannot cope with colon-terminated $shlibpath_var
+    # The second colon is a workaround for a bug in BeOS R4 sed
+    $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`
+
+    export $shlibpath_var
+"
+	fi
+
+	$ECHO "\
+    if test \"\$libtool_execute_magic\" != \"$magic\"; then
+      # Run the actual program with our arguments.
+      func_exec_program \${1+\"\$@\"}
+    fi
+  else
+    # The program doesn't exist.
+    \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
+    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
+    \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
+    exit 1
+  fi
+fi\
+"
+}
+
+
+# func_emit_cwrapperexe_src
+# emit the source code for a wrapper executable on stdout
+# Must ONLY be called from within func_mode_link because
+# it depends on a number of variable set therein.
+func_emit_cwrapperexe_src ()
+{
+	cat <<EOF
+
+/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
+   Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+
+   The $output program cannot be directly executed until all the libtool
+   libraries that it depends on are installed.
+
+   This wrapper executable should never be moved out of the build directory.
+   If it is, it will not operate correctly.
+*/
+EOF
+	    cat <<"EOF"
+#ifdef _MSC_VER
+# define _CRT_SECURE_NO_DEPRECATE 1
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef _MSC_VER
+# include <direct.h>
+# include <process.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <stdint.h>
+# ifdef __CYGWIN__
+#  include <io.h>
+# endif
+#endif
+#include <malloc.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+/* declarations of non-ANSI functions */
+#if defined(__MINGW32__)
+# ifdef __STRICT_ANSI__
+int _putenv (const char *);
+# endif
+#elif defined(__CYGWIN__)
+# ifdef __STRICT_ANSI__
+char *realpath (const char *, char *);
+int putenv (char *);
+int setenv (const char *, const char *, int);
+# endif
+/* #elif defined (other platforms) ... */
+#endif
+
+/* portability defines, excluding path handling macros */
+#if defined(_MSC_VER)
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+# define S_IXUSR _S_IEXEC
+# ifndef _INTPTR_T_DEFINED
+#  define _INTPTR_T_DEFINED
+#  define intptr_t int
+# endif
+#elif defined(__MINGW32__)
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+#elif defined(__CYGWIN__)
+# define HAVE_SETENV
+# define FOPEN_WB "wb"
+/* #elif defined (other platforms) ... */
+#endif
+
+#if defined(PATH_MAX)
+# define LT_PATHMAX PATH_MAX
+#elif defined(MAXPATHLEN)
+# define LT_PATHMAX MAXPATHLEN
+#else
+# define LT_PATHMAX 1024
+#endif
+
+#ifndef S_IXOTH
+# define S_IXOTH 0
+#endif
+#ifndef S_IXGRP
+# define S_IXGRP 0
+#endif
+
+/* path handling portability macros */
+#ifndef DIR_SEPARATOR
+# define DIR_SEPARATOR '/'
+# define PATH_SEPARATOR ':'
+#endif
+
+#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
+  defined (__OS2__)
+# define HAVE_DOS_BASED_FILE_SYSTEM
+# define FOPEN_WB "wb"
+# ifndef DIR_SEPARATOR_2
+#  define DIR_SEPARATOR_2 '\\'
+# endif
+# ifndef PATH_SEPARATOR_2
+#  define PATH_SEPARATOR_2 ';'
+# endif
+#endif
+
+#ifndef DIR_SEPARATOR_2
+# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
+#else /* DIR_SEPARATOR_2 */
+# define IS_DIR_SEPARATOR(ch) \
+	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
+#endif /* DIR_SEPARATOR_2 */
+
+#ifndef PATH_SEPARATOR_2
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
+#else /* PATH_SEPARATOR_2 */
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
+#endif /* PATH_SEPARATOR_2 */
+
+#ifndef FOPEN_WB
+# define FOPEN_WB "w"
+#endif
+#ifndef _O_BINARY
+# define _O_BINARY 0
+#endif
+
+#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
+#define XFREE(stale) do { \
+  if (stale) { free ((void *) stale); stale = 0; } \
+} while (0)
+
+#if defined(LT_DEBUGWRAPPER)
+static int lt_debug = 1;
+#else
+static int lt_debug = 0;
+#endif
+
+const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */
+
+void *xmalloc (size_t num);
+char *xstrdup (const char *string);
+const char *base_name (const char *name);
+char *find_executable (const char *wrapper);
+char *chase_symlinks (const char *pathspec);
+int make_executable (const char *path);
+int check_executable (const char *path);
+char *strendzap (char *str, const char *pat);
+void lt_debugprintf (const char *file, int line, const char *fmt, ...);
+void lt_fatal (const char *file, int line, const char *message, ...);
+static const char *nonnull (const char *s);
+static const char *nonempty (const char *s);
+void lt_setenv (const char *name, const char *value);
+char *lt_extend_str (const char *orig_value, const char *add, int to_end);
+void lt_update_exe_path (const char *name, const char *value);
+void lt_update_lib_path (const char *name, const char *value);
+char **prepare_spawn (char **argv);
+void lt_dump_script (FILE *f);
+EOF
+
+	    cat <<EOF
+volatile const char * MAGIC_EXE = "$magic_exe";
+const char * LIB_PATH_VARNAME = "$shlibpath_var";
+EOF
+
+	    if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+              func_to_host_path "$temp_rpath"
+	      cat <<EOF
+const char * LIB_PATH_VALUE   = "$func_to_host_path_result";
+EOF
+	    else
+	      cat <<"EOF"
+const char * LIB_PATH_VALUE   = "";
+EOF
+	    fi
+
+	    if test -n "$dllsearchpath"; then
+              func_to_host_path "$dllsearchpath:"
+	      cat <<EOF
+const char * EXE_PATH_VARNAME = "PATH";
+const char * EXE_PATH_VALUE   = "$func_to_host_path_result";
+EOF
+	    else
+	      cat <<"EOF"
+const char * EXE_PATH_VARNAME = "";
+const char * EXE_PATH_VALUE   = "";
+EOF
+	    fi
+
+	    if test "$fast_install" = yes; then
+	      cat <<EOF
+const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
+EOF
+	    else
+	      cat <<EOF
+const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
+EOF
+	    fi
+
+
+	    cat <<"EOF"
+
+#define LTWRAPPER_OPTION_PREFIX         "--lt-"
+
+static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
+static const char *dumpscript_opt       = LTWRAPPER_OPTION_PREFIX "dump-script";
+static const char *debug_opt            = LTWRAPPER_OPTION_PREFIX "debug";
+
+int
+main (int argc, char *argv[])
+{
+  char **newargz;
+  int  newargc;
+  char *tmp_pathspec;
+  char *actual_cwrapper_path;
+  char *actual_cwrapper_name;
+  char *target_name;
+  char *lt_argv_zero;
+  intptr_t rval = 127;
+
+  int i;
+
+  program_name = (char *) xstrdup (base_name (argv[0]));
+  newargz = XMALLOC (char *, argc + 1);
+
+  /* very simple arg parsing; don't want to rely on getopt
+   * also, copy all non cwrapper options to newargz, except
+   * argz[0], which is handled differently
+   */
+  newargc=0;
+  for (i = 1; i < argc; i++)
+    {
+      if (strcmp (argv[i], dumpscript_opt) == 0)
+	{
+EOF
+	    case "$host" in
+	      *mingw* | *cygwin* )
+		# make stdout use "unix" line endings
+		echo "          setmode(1,_O_BINARY);"
+		;;
+	      esac
+
+	    cat <<"EOF"
+	  lt_dump_script (stdout);
+	  return 0;
+	}
+      if (strcmp (argv[i], debug_opt) == 0)
+	{
+          lt_debug = 1;
+          continue;
+	}
+      if (strcmp (argv[i], ltwrapper_option_prefix) == 0)
+        {
+          /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
+             namespace, but it is not one of the ones we know about and
+             have already dealt with, above (inluding dump-script), then
+             report an error. Otherwise, targets might begin to believe
+             they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
+             namespace. The first time any user complains about this, we'll
+             need to make LTWRAPPER_OPTION_PREFIX a configure-time option
+             or a configure.ac-settable value.
+           */
+          lt_fatal (__FILE__, __LINE__,
+		    "unrecognized %s option: '%s'",
+                    ltwrapper_option_prefix, argv[i]);
+        }
+      /* otherwise ... */
+      newargz[++newargc] = xstrdup (argv[i]);
+    }
+  newargz[++newargc] = NULL;
+
+EOF
+	    cat <<EOF
+  /* The GNU banner must be the first non-error debug message */
+  lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\n");
+EOF
+	    cat <<"EOF"
+  lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]);
+  lt_debugprintf (__FILE__, __LINE__, "(main) program_name: %s\n", program_name);
+
+  tmp_pathspec = find_executable (argv[0]);
+  if (tmp_pathspec == NULL)
+    lt_fatal (__FILE__, __LINE__, "couldn't find %s", argv[0]);
+  lt_debugprintf (__FILE__, __LINE__,
+                  "(main) found exe (before symlink chase) at: %s\n",
+		  tmp_pathspec);
+
+  actual_cwrapper_path = chase_symlinks (tmp_pathspec);
+  lt_debugprintf (__FILE__, __LINE__,
+                  "(main) found exe (after symlink chase) at: %s\n",
+		  actual_cwrapper_path);
+  XFREE (tmp_pathspec);
+
+  actual_cwrapper_name = xstrdup (base_name (actual_cwrapper_path));
+  strendzap (actual_cwrapper_path, actual_cwrapper_name);
+
+  /* wrapper name transforms */
+  strendzap (actual_cwrapper_name, ".exe");
+  tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
+  XFREE (actual_cwrapper_name);
+  actual_cwrapper_name = tmp_pathspec;
+  tmp_pathspec = 0;
+
+  /* target_name transforms -- use actual target program name; might have lt- prefix */
+  target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
+  strendzap (target_name, ".exe");
+  tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
+  XFREE (target_name);
+  target_name = tmp_pathspec;
+  tmp_pathspec = 0;
+
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(main) libtool target name: %s\n",
+		  target_name);
+EOF
+
+	    cat <<EOF
+  newargz[0] =
+    XMALLOC (char, (strlen (actual_cwrapper_path) +
+		    strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
+  strcpy (newargz[0], actual_cwrapper_path);
+  strcat (newargz[0], "$objdir");
+  strcat (newargz[0], "/");
+EOF
+
+	    cat <<"EOF"
+  /* stop here, and copy so we don't have to do this twice */
+  tmp_pathspec = xstrdup (newargz[0]);
+
+  /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
+  strcat (newargz[0], actual_cwrapper_name);
+
+  /* DO want the lt- prefix here if it exists, so use target_name */
+  lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
+  XFREE (tmp_pathspec);
+  tmp_pathspec = NULL;
+EOF
+
+	    case $host_os in
+	      mingw*)
+	    cat <<"EOF"
+  {
+    char* p;
+    while ((p = strchr (newargz[0], '\\')) != NULL)
+      {
+	*p = '/';
+      }
+    while ((p = strchr (lt_argv_zero, '\\')) != NULL)
+      {
+	*p = '/';
+      }
+  }
+EOF
+	    ;;
+	    esac
+
+	    cat <<"EOF"
+  XFREE (target_name);
+  XFREE (actual_cwrapper_path);
+  XFREE (actual_cwrapper_name);
+
+  lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
+  lt_setenv ("DUALCASE", "1");  /* for MSK sh */
+  /* Update the DLL searchpath.  EXE_PATH_VALUE ($dllsearchpath) must
+     be prepended before (that is, appear after) LIB_PATH_VALUE ($temp_rpath)
+     because on Windows, both *_VARNAMEs are PATH but uninstalled
+     libraries must come first. */
+  lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
+  lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
+
+  lt_debugprintf (__FILE__, __LINE__, "(main) lt_argv_zero: %s\n",
+		  nonnull (lt_argv_zero));
+  for (i = 0; i < newargc; i++)
+    {
+      lt_debugprintf (__FILE__, __LINE__, "(main) newargz[%d]: %s\n",
+		      i, nonnull (newargz[i]));
+    }
+
+EOF
+
+	    case $host_os in
+	      mingw*)
+		cat <<"EOF"
+  /* execv doesn't actually work on mingw as expected on unix */
+  newargz = prepare_spawn (newargz);
+  rval = _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
+  if (rval == -1)
+    {
+      /* failed to start process */
+      lt_debugprintf (__FILE__, __LINE__,
+		      "(main) failed to launch target \"%s\": %s\n",
+		      lt_argv_zero, nonnull (strerror (errno)));
+      return 127;
+    }
+  return rval;
+EOF
+		;;
+	      *)
+		cat <<"EOF"
+  execv (lt_argv_zero, newargz);
+  return rval; /* =127, but avoids unused variable warning */
+EOF
+		;;
+	    esac
+
+	    cat <<"EOF"
+}
+
+void *
+xmalloc (size_t num)
+{
+  void *p = (void *) malloc (num);
+  if (!p)
+    lt_fatal (__FILE__, __LINE__, "memory exhausted");
+
+  return p;
+}
+
+char *
+xstrdup (const char *string)
+{
+  return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
+			  string) : NULL;
+}
+
+const char *
+base_name (const char *name)
+{
+  const char *base;
+
+#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+  /* Skip over the disk name in MSDOS pathnames. */
+  if (isalpha ((unsigned char) name[0]) && name[1] == ':')
+    name += 2;
+#endif
+
+  for (base = name; *name; name++)
+    if (IS_DIR_SEPARATOR (*name))
+      base = name + 1;
+  return base;
+}
+
+int
+check_executable (const char *path)
+{
+  struct stat st;
+
+  lt_debugprintf (__FILE__, __LINE__, "(check_executable): %s\n",
+                  nonempty (path));
+  if ((!path) || (!*path))
+    return 0;
+
+  if ((stat (path, &st) >= 0)
+      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+    return 1;
+  else
+    return 0;
+}
+
+int
+make_executable (const char *path)
+{
+  int rval = 0;
+  struct stat st;
+
+  lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
+                  nonempty (path));
+  if ((!path) || (!*path))
+    return 0;
+
+  if (stat (path, &st) >= 0)
+    {
+      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
+    }
+  return rval;
+}
+
+/* Searches for the full path of the wrapper.  Returns
+   newly allocated full path name if found, NULL otherwise
+   Does not chase symlinks, even on platforms that support them.
+*/
+char *
+find_executable (const char *wrapper)
+{
+  int has_slash = 0;
+  const char *p;
+  const char *p_next;
+  /* static buffer for getcwd */
+  char tmp[LT_PATHMAX + 1];
+  int tmp_len;
+  char *concat_name;
+
+  lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
+                  nonempty (wrapper));
+
+  if ((wrapper == NULL) || (*wrapper == '\0'))
+    return NULL;
+
+  /* Absolute path? */
+#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
+    {
+      concat_name = xstrdup (wrapper);
+      if (check_executable (concat_name))
+	return concat_name;
+      XFREE (concat_name);
+    }
+  else
+    {
+#endif
+      if (IS_DIR_SEPARATOR (wrapper[0]))
+	{
+	  concat_name = xstrdup (wrapper);
+	  if (check_executable (concat_name))
+	    return concat_name;
+	  XFREE (concat_name);
+	}
+#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+    }
+#endif
+
+  for (p = wrapper; *p; p++)
+    if (*p == '/')
+      {
+	has_slash = 1;
+	break;
+      }
+  if (!has_slash)
+    {
+      /* no slashes; search PATH */
+      const char *path = getenv ("PATH");
+      if (path != NULL)
+	{
+	  for (p = path; *p; p = p_next)
+	    {
+	      const char *q;
+	      size_t p_len;
+	      for (q = p; *q; q++)
+		if (IS_PATH_SEPARATOR (*q))
+		  break;
+	      p_len = q - p;
+	      p_next = (*q == '\0' ? q : q + 1);
+	      if (p_len == 0)
+		{
+		  /* empty path: current directory */
+		  if (getcwd (tmp, LT_PATHMAX) == NULL)
+		    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+                              nonnull (strerror (errno)));
+		  tmp_len = strlen (tmp);
+		  concat_name =
+		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, tmp, tmp_len);
+		  concat_name[tmp_len] = '/';
+		  strcpy (concat_name + tmp_len + 1, wrapper);
+		}
+	      else
+		{
+		  concat_name =
+		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, p, p_len);
+		  concat_name[p_len] = '/';
+		  strcpy (concat_name + p_len + 1, wrapper);
+		}
+	      if (check_executable (concat_name))
+		return concat_name;
+	      XFREE (concat_name);
+	    }
+	}
+      /* not found in PATH; assume curdir */
+    }
+  /* Relative path | not found in path: prepend cwd */
+  if (getcwd (tmp, LT_PATHMAX) == NULL)
+    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+              nonnull (strerror (errno)));
+  tmp_len = strlen (tmp);
+  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+  memcpy (concat_name, tmp, tmp_len);
+  concat_name[tmp_len] = '/';
+  strcpy (concat_name + tmp_len + 1, wrapper);
+
+  if (check_executable (concat_name))
+    return concat_name;
+  XFREE (concat_name);
+  return NULL;
+}
+
+char *
+chase_symlinks (const char *pathspec)
+{
+#ifndef S_ISLNK
+  return xstrdup (pathspec);
+#else
+  char buf[LT_PATHMAX];
+  struct stat s;
+  char *tmp_pathspec = xstrdup (pathspec);
+  char *p;
+  int has_symlinks = 0;
+  while (strlen (tmp_pathspec) && !has_symlinks)
+    {
+      lt_debugprintf (__FILE__, __LINE__,
+		      "checking path component for symlinks: %s\n",
+		      tmp_pathspec);
+      if (lstat (tmp_pathspec, &s) == 0)
+	{
+	  if (S_ISLNK (s.st_mode) != 0)
+	    {
+	      has_symlinks = 1;
+	      break;
+	    }
+
+	  /* search backwards for last DIR_SEPARATOR */
+	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
+	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    p--;
+	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    {
+	      /* no more DIR_SEPARATORS left */
+	      break;
+	    }
+	  *p = '\0';
+	}
+      else
+	{
+	  lt_fatal (__FILE__, __LINE__,
+		    "error accessing file \"%s\": %s",
+		    tmp_pathspec, nonnull (strerror (errno)));
+	}
+    }
+  XFREE (tmp_pathspec);
+
+  if (!has_symlinks)
+    {
+      return xstrdup (pathspec);
+    }
+
+  tmp_pathspec = realpath (pathspec, buf);
+  if (tmp_pathspec == 0)
+    {
+      lt_fatal (__FILE__, __LINE__,
+		"could not follow symlinks for %s", pathspec);
+    }
+  return xstrdup (tmp_pathspec);
+#endif
+}
+
+char *
+strendzap (char *str, const char *pat)
+{
+  size_t len, patlen;
+
+  assert (str != NULL);
+  assert (pat != NULL);
+
+  len = strlen (str);
+  patlen = strlen (pat);
+
+  if (patlen <= len)
+    {
+      str += len - patlen;
+      if (strcmp (str, pat) == 0)
+	*str = '\0';
+    }
+  return str;
+}
+
+void
+lt_debugprintf (const char *file, int line, const char *fmt, ...)
+{
+  va_list args;
+  if (lt_debug)
+    {
+      (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
+      va_start (args, fmt);
+      (void) vfprintf (stderr, fmt, args);
+      va_end (args);
+    }
+}
+
+static void
+lt_error_core (int exit_status, const char *file,
+	       int line, const char *mode,
+	       const char *message, va_list ap)
+{
+  fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
+  vfprintf (stderr, message, ap);
+  fprintf (stderr, ".\n");
+
+  if (exit_status >= 0)
+    exit (exit_status);
+}
+
+void
+lt_fatal (const char *file, int line, const char *message, ...)
+{
+  va_list ap;
+  va_start (ap, message);
+  lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
+  va_end (ap);
+}
+
+static const char *
+nonnull (const char *s)
+{
+  return s ? s : "(null)";
+}
+
+static const char *
+nonempty (const char *s)
+{
+  return (s && !*s) ? "(empty)" : nonnull (s);
+}
+
+void
+lt_setenv (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_setenv) setting '%s' to '%s'\n",
+                  nonnull (name), nonnull (value));
+  {
+#ifdef HAVE_SETENV
+    /* always make a copy, for consistency with !HAVE_SETENV */
+    char *str = xstrdup (value);
+    setenv (name, str, 1);
+#else
+    int len = strlen (name) + 1 + strlen (value) + 1;
+    char *str = XMALLOC (char, len);
+    sprintf (str, "%s=%s", name, value);
+    if (putenv (str) != EXIT_SUCCESS)
+      {
+        XFREE (str);
+      }
+#endif
+  }
+}
+
+char *
+lt_extend_str (const char *orig_value, const char *add, int to_end)
+{
+  char *new_value;
+  if (orig_value && *orig_value)
+    {
+      int orig_value_len = strlen (orig_value);
+      int add_len = strlen (add);
+      new_value = XMALLOC (char, add_len + orig_value_len + 1);
+      if (to_end)
+        {
+          strcpy (new_value, orig_value);
+          strcpy (new_value + orig_value_len, add);
+        }
+      else
+        {
+          strcpy (new_value, add);
+          strcpy (new_value + add_len, orig_value);
+        }
+    }
+  else
+    {
+      new_value = xstrdup (add);
+    }
+  return new_value;
+}
+
+void
+lt_update_exe_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      /* some systems can't cope with a ':'-terminated path #' */
+      int len = strlen (new_value);
+      while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
+        {
+          new_value[len-1] = '\0';
+        }
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+void
+lt_update_lib_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+EOF
+	    case $host_os in
+	      mingw*)
+		cat <<"EOF"
+
+/* Prepares an argument vector before calling spawn().
+   Note that spawn() does not by itself call the command interpreter
+     (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
+      ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+         GetVersionEx(&v);
+         v.dwPlatformId == VER_PLATFORM_WIN32_NT;
+      }) ? "cmd.exe" : "command.com").
+   Instead it simply concatenates the arguments, separated by ' ', and calls
+   CreateProcess().  We must quote the arguments since Win32 CreateProcess()
+   interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
+   special way:
+   - Space and tab are interpreted as delimiters. They are not treated as
+     delimiters if they are surrounded by double quotes: "...".
+   - Unescaped double quotes are removed from the input. Their only effect is
+     that within double quotes, space and tab are treated like normal
+     characters.
+   - Backslashes not followed by double quotes are not special.
+   - But 2*n+1 backslashes followed by a double quote become
+     n backslashes followed by a double quote (n >= 0):
+       \" -> "
+       \\\" -> \"
+       \\\\\" -> \\"
+ */
+#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+char **
+prepare_spawn (char **argv)
+{
+  size_t argc;
+  char **new_argv;
+  size_t i;
+
+  /* Count number of arguments.  */
+  for (argc = 0; argv[argc] != NULL; argc++)
+    ;
+
+  /* Allocate new argument vector.  */
+  new_argv = XMALLOC (char *, argc + 1);
+
+  /* Put quoted arguments into the new argument vector.  */
+  for (i = 0; i < argc; i++)
+    {
+      const char *string = argv[i];
+
+      if (string[0] == '\0')
+	new_argv[i] = xstrdup ("\"\"");
+      else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
+	{
+	  int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
+	  size_t length;
+	  unsigned int backslashes;
+	  const char *s;
+	  char *quoted_string;
+	  char *p;
+
+	  length = 0;
+	  backslashes = 0;
+	  if (quote_around)
+	    length++;
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		length += backslashes + 1;
+	      length++;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    length += backslashes + 1;
+
+	  quoted_string = XMALLOC (char, length + 1);
+
+	  p = quoted_string;
+	  backslashes = 0;
+	  if (quote_around)
+	    *p++ = '"';
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		{
+		  unsigned int j;
+		  for (j = backslashes + 1; j > 0; j--)
+		    *p++ = '\\';
+		}
+	      *p++ = c;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    {
+	      unsigned int j;
+	      for (j = backslashes; j > 0; j--)
+		*p++ = '\\';
+	      *p++ = '"';
+	    }
+	  *p = '\0';
+
+	  new_argv[i] = quoted_string;
+	}
+      else
+	new_argv[i] = (char *) string;
+    }
+  new_argv[argc] = NULL;
+
+  return new_argv;
+}
+EOF
+		;;
+	    esac
+
+            cat <<"EOF"
+void lt_dump_script (FILE* f)
+{
+EOF
+	    func_emit_wrapper yes |
+              $SED -e 's/\([\\"]\)/\\\1/g' \
+	           -e 's/^/  fputs ("/' -e 's/$/\\n", f);/'
+
+            cat <<"EOF"
+}
+EOF
+}
+# end: func_emit_cwrapperexe_src
+
+# func_win32_import_lib_p ARG
+# True if ARG is an import lib, as indicated by $file_magic_cmd
+func_win32_import_lib_p ()
+{
+    $opt_debug
+    case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
+    *import*) : ;;
+    *) false ;;
+    esac
+}
+
+# func_mode_link arg...
+func_mode_link ()
+{
+    $opt_debug
+    case $host in
+    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+      # It is impossible to link a dll without this setting, and
+      # we shouldn't force the makefile maintainer to figure out
+      # which system we are compiling for in order to pass an extra
+      # flag for every libtool invocation.
+      # allow_undefined=no
+
+      # FIXME: Unfortunately, there are problems with the above when trying
+      # to make a dll which has undefined symbols, in which case not
+      # even a static library is built.  For now, we need to specify
+      # -no-undefined on the libtool link line when we can be certain
+      # that all symbols are satisfied, otherwise we get a static library.
+      allow_undefined=yes
+      ;;
+    *)
+      allow_undefined=yes
+      ;;
+    esac
+    libtool_args=$nonopt
+    base_compile="$nonopt $@"
+    compile_command=$nonopt
+    finalize_command=$nonopt
+
+    compile_rpath=
+    finalize_rpath=
+    compile_shlibpath=
+    finalize_shlibpath=
+    convenience=
+    old_convenience=
+    deplibs=
+    old_deplibs=
+    compiler_flags=
+    linker_flags=
+    dllsearchpath=
+    lib_search_path=`pwd`
+    inst_prefix_dir=
+    new_inherited_linker_flags=
+
+    avoid_version=no
+    bindir=
+    dlfiles=
+    dlprefiles=
+    dlself=no
+    export_dynamic=no
+    export_symbols=
+    export_symbols_regex=
+    generated=
+    libobjs=
+    ltlibs=
+    module=no
+    no_install=no
+    objs=
+    non_pic_objects=
+    precious_files_regex=
+    prefer_static_libs=no
+    preload=no
+    prev=
+    prevarg=
+    release=
+    rpath=
+    xrpath=
+    perm_rpath=
+    temp_rpath=
+    thread_safe=no
+    vinfo=
+    vinfo_number=no
+    weak_libs=
+    single_module="${wl}-single_module"
+    func_infer_tag $base_compile
+
+    # We need to know -static, to get the right output filenames.
+    for arg
+    do
+      case $arg in
+      -shared)
+	test "$build_libtool_libs" != yes && \
+	  func_fatal_configuration "can not build a shared library"
+	build_old_libs=no
+	break
+	;;
+      -all-static | -static | -static-libtool-libs)
+	case $arg in
+	-all-static)
+	  if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
+	    func_warning "complete static linking is impossible in this configuration"
+	  fi
+	  if test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	-static)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=built
+	  ;;
+	-static-libtool-libs)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	esac
+	build_libtool_libs=no
+	build_old_libs=yes
+	break
+	;;
+      esac
+    done
+
+    # See if our shared archives depend on static archives.
+    test -n "$old_archive_from_new_cmds" && build_old_libs=yes
+
+    # Go through the arguments, transforming them on the way.
+    while test "$#" -gt 0; do
+      arg="$1"
+      shift
+      func_quote_for_eval "$arg"
+      qarg=$func_quote_for_eval_unquoted_result
+      func_append libtool_args " $func_quote_for_eval_result"
+
+      # If the previous option needs an argument, assign it.
+      if test -n "$prev"; then
+	case $prev in
+	output)
+	  func_append compile_command " @OUTPUT@"
+	  func_append finalize_command " @OUTPUT@"
+	  ;;
+	esac
+
+	case $prev in
+	bindir)
+	  bindir="$arg"
+	  prev=
+	  continue
+	  ;;
+	dlfiles|dlprefiles)
+	  if test "$preload" = no; then
+	    # Add the symbol object into the linking commands.
+	    func_append compile_command " @SYMFILE@"
+	    func_append finalize_command " @SYMFILE@"
+	    preload=yes
+	  fi
+	  case $arg in
+	  *.la | *.lo) ;;  # We handle these cases below.
+	  force)
+	    if test "$dlself" = no; then
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  self)
+	    if test "$prev" = dlprefiles; then
+	      dlself=yes
+	    elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
+	      dlself=yes
+	    else
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  *)
+	    if test "$prev" = dlfiles; then
+	      func_append dlfiles " $arg"
+	    else
+	      func_append dlprefiles " $arg"
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  esac
+	  ;;
+	expsyms)
+	  export_symbols="$arg"
+	  test -f "$arg" \
+	    || func_fatal_error "symbol file \`$arg' does not exist"
+	  prev=
+	  continue
+	  ;;
+	expsyms_regex)
+	  export_symbols_regex="$arg"
+	  prev=
+	  continue
+	  ;;
+	framework)
+	  case $host in
+	    *-*-darwin*)
+	      case "$deplibs " in
+		*" $qarg.ltframework "*) ;;
+		*) func_append deplibs " $qarg.ltframework" # this is fixed later
+		   ;;
+	      esac
+	      ;;
+	  esac
+	  prev=
+	  continue
+	  ;;
+	inst_prefix)
+	  inst_prefix_dir="$arg"
+	  prev=
+	  continue
+	  ;;
+	objectlist)
+	  if test -f "$arg"; then
+	    save_arg=$arg
+	    moreargs=
+	    for fil in `cat "$save_arg"`
+	    do
+#	      func_append moreargs " $fil"
+	      arg=$fil
+	      # A libtool-controlled object.
+
+	      # Check to see that this really is a libtool object.
+	      if func_lalib_unsafe_p "$arg"; then
+		pic_object=
+		non_pic_object=
+
+		# Read the .lo file
+		func_source "$arg"
+
+		if test -z "$pic_object" ||
+		   test -z "$non_pic_object" ||
+		   test "$pic_object" = none &&
+		   test "$non_pic_object" = none; then
+		  func_fatal_error "cannot find name of object for \`$arg'"
+		fi
+
+		# Extract subdirectory from the argument.
+		func_dirname "$arg" "/" ""
+		xdir="$func_dirname_result"
+
+		if test "$pic_object" != none; then
+		  # Prepend the subdirectory the object is found in.
+		  pic_object="$xdir$pic_object"
+
+		  if test "$prev" = dlfiles; then
+		    if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
+		      func_append dlfiles " $pic_object"
+		      prev=
+		      continue
+		    else
+		      # If libtool objects are unsupported, then we need to preload.
+		      prev=dlprefiles
+		    fi
+		  fi
+
+		  # CHECK ME:  I think I busted this.  -Ossama
+		  if test "$prev" = dlprefiles; then
+		    # Preload the old-style object.
+		    func_append dlprefiles " $pic_object"
+		    prev=
+		  fi
+
+		  # A PIC object.
+		  func_append libobjs " $pic_object"
+		  arg="$pic_object"
+		fi
+
+		# Non-PIC object.
+		if test "$non_pic_object" != none; then
+		  # Prepend the subdirectory the object is found in.
+		  non_pic_object="$xdir$non_pic_object"
+
+		  # A standard non-PIC object
+		  func_append non_pic_objects " $non_pic_object"
+		  if test -z "$pic_object" || test "$pic_object" = none ; then
+		    arg="$non_pic_object"
+		  fi
+		else
+		  # If the PIC object exists, use it instead.
+		  # $xdir was prepended to $pic_object above.
+		  non_pic_object="$pic_object"
+		  func_append non_pic_objects " $non_pic_object"
+		fi
+	      else
+		# Only an error if not doing a dry-run.
+		if $opt_dry_run; then
+		  # Extract subdirectory from the argument.
+		  func_dirname "$arg" "/" ""
+		  xdir="$func_dirname_result"
+
+		  func_lo2o "$arg"
+		  pic_object=$xdir$objdir/$func_lo2o_result
+		  non_pic_object=$xdir$func_lo2o_result
+		  func_append libobjs " $pic_object"
+		  func_append non_pic_objects " $non_pic_object"
+	        else
+		  func_fatal_error "\`$arg' is not a valid libtool object"
+		fi
+	      fi
+	    done
+	  else
+	    func_fatal_error "link input file \`$arg' does not exist"
+	  fi
+	  arg=$save_arg
+	  prev=
+	  continue
+	  ;;
+	precious_regex)
+	  precious_files_regex="$arg"
+	  prev=
+	  continue
+	  ;;
+	release)
+	  release="-$arg"
+	  prev=
+	  continue
+	  ;;
+	rpath | xrpath)
+	  # We need an absolute path.
+	  case $arg in
+	  [\\/]* | [A-Za-z]:[\\/]*) ;;
+	  *)
+	    func_fatal_error "only absolute run-paths are allowed"
+	    ;;
+	  esac
+	  if test "$prev" = rpath; then
+	    case "$rpath " in
+	    *" $arg "*) ;;
+	    *) func_append rpath " $arg" ;;
+	    esac
+	  else
+	    case "$xrpath " in
+	    *" $arg "*) ;;
+	    *) func_append xrpath " $arg" ;;
+	    esac
+	  fi
+	  prev=
+	  continue
+	  ;;
+	shrext)
+	  shrext_cmds="$arg"
+	  prev=
+	  continue
+	  ;;
+	weak)
+	  func_append weak_libs " $arg"
+	  prev=
+	  continue
+	  ;;
+	xcclinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xcompiler)
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xlinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $wl$qarg"
+	  prev=
+	  func_append compile_command " $wl$qarg"
+	  func_append finalize_command " $wl$qarg"
+	  continue
+	  ;;
+	*)
+	  eval "$prev=\"\$arg\""
+	  prev=
+	  continue
+	  ;;
+	esac
+      fi # test -n "$prev"
+
+      prevarg="$arg"
+
+      case $arg in
+      -all-static)
+	if test -n "$link_static_flag"; then
+	  # See comment for -static flag below, for more details.
+	  func_append compile_command " $link_static_flag"
+	  func_append finalize_command " $link_static_flag"
+	fi
+	continue
+	;;
+
+      -allow-undefined)
+	# FIXME: remove this flag sometime in the future.
+	func_fatal_error "\`-allow-undefined' must not be used because it is the default"
+	;;
+
+      -avoid-version)
+	avoid_version=yes
+	continue
+	;;
+
+      -bindir)
+	prev=bindir
+	continue
+	;;
+
+      -dlopen)
+	prev=dlfiles
+	continue
+	;;
+
+      -dlpreopen)
+	prev=dlprefiles
+	continue
+	;;
+
+      -export-dynamic)
+	export_dynamic=yes
+	continue
+	;;
+
+      -export-symbols | -export-symbols-regex)
+	if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
+	  func_fatal_error "more than one -exported-symbols argument is not allowed"
+	fi
+	if test "X$arg" = "X-export-symbols"; then
+	  prev=expsyms
+	else
+	  prev=expsyms_regex
+	fi
+	continue
+	;;
+
+      -framework)
+	prev=framework
+	continue
+	;;
+
+      -inst-prefix-dir)
+	prev=inst_prefix
+	continue
+	;;
+
+      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
+      # so, if we see these flags be careful not to treat them like -L
+      -L[A-Z][A-Z]*:*)
+	case $with_gcc/$host in
+	no/*-*-irix* | /*-*-irix*)
+	  func_append compile_command " $arg"
+	  func_append finalize_command " $arg"
+	  ;;
+	esac
+	continue
+	;;
+
+      -L*)
+	func_stripname "-L" '' "$arg"
+	if test -z "$func_stripname_result"; then
+	  if test "$#" -gt 0; then
+	    func_fatal_error "require no space between \`-L' and \`$1'"
+	  else
+	    func_fatal_error "need path for \`-L' option"
+	  fi
+	fi
+	func_resolve_sysroot "$func_stripname_result"
+	dir=$func_resolve_sysroot_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	*)
+	  absdir=`cd "$dir" && pwd`
+	  test -z "$absdir" && \
+	    func_fatal_error "cannot determine absolute directory name of \`$dir'"
+	  dir="$absdir"
+	  ;;
+	esac
+	case "$deplibs " in
+	*" -L$dir "* | *" $arg "*)
+	  # Will only happen for absolute or sysroot arguments
+	  ;;
+	*)
+	  # Preserve sysroot, but never include relative directories
+	  case $dir in
+	    [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
+	    *) func_append deplibs " -L$dir" ;;
+	  esac
+	  func_append lib_search_path " $dir"
+	  ;;
+	esac
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$dir:"*) ;;
+	  ::) dllsearchpath=$dir;;
+	  *) func_append dllsearchpath ":$dir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+	continue
+	;;
+
+      -l*)
+	if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # These systems don't actually have a C or math library (as such)
+	    continue
+	    ;;
+	  *-*-os2*)
+	    # These systems don't actually have a C library (as such)
+	    test "X$arg" = "X-lc" && continue
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	    # Do not include libc due to us having libc/libc_r.
+	    test "X$arg" = "X-lc" && continue
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C and math libraries are in the System framework
+	    func_append deplibs " System.ltframework"
+	    continue
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    test "X$arg" = "X-lc" && continue
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    test "X$arg" = "X-lc" && continue
+	    ;;
+	  esac
+	elif test "X$arg" = "X-lc_r"; then
+	 case $host in
+	 *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	   # Do not include libc_r directly, use -pthread flag.
+	   continue
+	   ;;
+	 esac
+	fi
+	func_append deplibs " $arg"
+	continue
+	;;
+
+      -module)
+	module=yes
+	continue
+	;;
+
+      # Tru64 UNIX uses -model [arg] to determine the layout of C++
+      # classes, name mangling, and exception handling.
+      # Darwin uses the -arch flag to determine output architecture.
+      -model|-arch|-isysroot|--sysroot)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	prev=xcompiler
+	continue
+	;;
+
+      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	case "$new_inherited_linker_flags " in
+	    *" $arg "*) ;;
+	    * ) func_append new_inherited_linker_flags " $arg" ;;
+	esac
+	continue
+	;;
+
+      -multi_module)
+	single_module="${wl}-multi_module"
+	continue
+	;;
+
+      -no-fast-install)
+	fast_install=no
+	continue
+	;;
+
+      -no-install)
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
+	  # The PATH hackery in wrapper scripts is required on Windows
+	  # and Darwin in order for the loader to find any dlls it needs.
+	  func_warning "\`-no-install' is ignored for $host"
+	  func_warning "assuming \`-no-fast-install' instead"
+	  fast_install=no
+	  ;;
+	*) no_install=yes ;;
+	esac
+	continue
+	;;
+
+      -no-undefined)
+	allow_undefined=no
+	continue
+	;;
+
+      -objectlist)
+	prev=objectlist
+	continue
+	;;
+
+      -o) prev=output ;;
+
+      -precious-files-regex)
+	prev=precious_regex
+	continue
+	;;
+
+      -release)
+	prev=release
+	continue
+	;;
+
+      -rpath)
+	prev=rpath
+	continue
+	;;
+
+      -R)
+	prev=xrpath
+	continue
+	;;
+
+      -R*)
+	func_stripname '-R' '' "$arg"
+	dir=$func_stripname_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	=*)
+	  func_stripname '=' '' "$dir"
+	  dir=$lt_sysroot$func_stripname_result
+	  ;;
+	*)
+	  func_fatal_error "only absolute run-paths are allowed"
+	  ;;
+	esac
+	case "$xrpath " in
+	*" $dir "*) ;;
+	*) func_append xrpath " $dir" ;;
+	esac
+	continue
+	;;
+
+      -shared)
+	# The effects of -shared are defined in a previous loop.
+	continue
+	;;
+
+      -shrext)
+	prev=shrext
+	continue
+	;;
+
+      -static | -static-libtool-libs)
+	# The effects of -static are defined in a previous loop.
+	# We used to do the same as -all-static on platforms that
+	# didn't have a PIC flag, but the assumption that the effects
+	# would be equivalent was wrong.  It would break on at least
+	# Digital Unix and AIX.
+	continue
+	;;
+
+      -thread-safe)
+	thread_safe=yes
+	continue
+	;;
+
+      -version-info)
+	prev=vinfo
+	continue
+	;;
+
+      -version-number)
+	prev=vinfo
+	vinfo_number=yes
+	continue
+	;;
+
+      -weak)
+        prev=weak
+	continue
+	;;
+
+      -Wc,*)
+	func_stripname '-Wc,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs="$IFS"; IFS=','
+	for flag in $args; do
+	  IFS="$save_ifs"
+          func_quote_for_eval "$flag"
+	  func_append arg " $func_quote_for_eval_result"
+	  func_append compiler_flags " $func_quote_for_eval_result"
+	done
+	IFS="$save_ifs"
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Wl,*)
+	func_stripname '-Wl,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs="$IFS"; IFS=','
+	for flag in $args; do
+	  IFS="$save_ifs"
+          func_quote_for_eval "$flag"
+	  func_append arg " $wl$func_quote_for_eval_result"
+	  func_append compiler_flags " $wl$func_quote_for_eval_result"
+	  func_append linker_flags " $func_quote_for_eval_result"
+	done
+	IFS="$save_ifs"
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Xcompiler)
+	prev=xcompiler
+	continue
+	;;
+
+      -Xlinker)
+	prev=xlinker
+	continue
+	;;
+
+      -XCClinker)
+	prev=xcclinker
+	continue
+	;;
+
+      # -msg_* for osf cc
+      -msg_*)
+	func_quote_for_eval "$arg"
+	arg="$func_quote_for_eval_result"
+	;;
+
+      # Flags to be passed through unchanged, with rationale:
+      # -64, -mips[0-9]      enable 64-bit mode for the SGI compiler
+      # -r[0-9][0-9]*        specify processor for the SGI compiler
+      # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
+      # +DA*, +DD*           enable 64-bit mode for the HP compiler
+      # -q*                  compiler args for the IBM compiler
+      # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
+      # -F/path              path to uninstalled frameworks, gcc on darwin
+      # -p, -pg, --coverage, -fprofile-*  profiling flags for GCC
+      # @file                GCC response files
+      # -tp=*                Portland pgcc target processor selection
+      # --sysroot=*          for sysroot support
+      # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+      -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+      -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+      -O*|-flto*|-fwhopr*|-fuse-linker-plugin)
+        func_quote_for_eval "$arg"
+	arg="$func_quote_for_eval_result"
+        func_append compile_command " $arg"
+        func_append finalize_command " $arg"
+        func_append compiler_flags " $arg"
+        continue
+        ;;
+
+      # Some other compiler flag.
+      -* | +*)
+        func_quote_for_eval "$arg"
+	arg="$func_quote_for_eval_result"
+	;;
+
+      *.$objext)
+	# A standard object.
+	func_append objs " $arg"
+	;;
+
+      *.lo)
+	# A libtool-controlled object.
+
+	# Check to see that this really is a libtool object.
+	if func_lalib_unsafe_p "$arg"; then
+	  pic_object=
+	  non_pic_object=
+
+	  # Read the .lo file
+	  func_source "$arg"
+
+	  if test -z "$pic_object" ||
+	     test -z "$non_pic_object" ||
+	     test "$pic_object" = none &&
+	     test "$non_pic_object" = none; then
+	    func_fatal_error "cannot find name of object for \`$arg'"
+	  fi
+
+	  # Extract subdirectory from the argument.
+	  func_dirname "$arg" "/" ""
+	  xdir="$func_dirname_result"
+
+	  if test "$pic_object" != none; then
+	    # Prepend the subdirectory the object is found in.
+	    pic_object="$xdir$pic_object"
+
+	    if test "$prev" = dlfiles; then
+	      if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
+		func_append dlfiles " $pic_object"
+		prev=
+		continue
+	      else
+		# If libtool objects are unsupported, then we need to preload.
+		prev=dlprefiles
+	      fi
+	    fi
+
+	    # CHECK ME:  I think I busted this.  -Ossama
+	    if test "$prev" = dlprefiles; then
+	      # Preload the old-style object.
+	      func_append dlprefiles " $pic_object"
+	      prev=
+	    fi
+
+	    # A PIC object.
+	    func_append libobjs " $pic_object"
+	    arg="$pic_object"
+	  fi
+
+	  # Non-PIC object.
+	  if test "$non_pic_object" != none; then
+	    # Prepend the subdirectory the object is found in.
+	    non_pic_object="$xdir$non_pic_object"
+
+	    # A standard non-PIC object
+	    func_append non_pic_objects " $non_pic_object"
+	    if test -z "$pic_object" || test "$pic_object" = none ; then
+	      arg="$non_pic_object"
+	    fi
+	  else
+	    # If the PIC object exists, use it instead.
+	    # $xdir was prepended to $pic_object above.
+	    non_pic_object="$pic_object"
+	    func_append non_pic_objects " $non_pic_object"
+	  fi
+	else
+	  # Only an error if not doing a dry-run.
+	  if $opt_dry_run; then
+	    # Extract subdirectory from the argument.
+	    func_dirname "$arg" "/" ""
+	    xdir="$func_dirname_result"
+
+	    func_lo2o "$arg"
+	    pic_object=$xdir$objdir/$func_lo2o_result
+	    non_pic_object=$xdir$func_lo2o_result
+	    func_append libobjs " $pic_object"
+	    func_append non_pic_objects " $non_pic_object"
+	  else
+	    func_fatal_error "\`$arg' is not a valid libtool object"
+	  fi
+	fi
+	;;
+
+      *.$libext)
+	# An archive.
+	func_append deplibs " $arg"
+	func_append old_deplibs " $arg"
+	continue
+	;;
+
+      *.la)
+	# A libtool-controlled library.
+
+	func_resolve_sysroot "$arg"
+	if test "$prev" = dlfiles; then
+	  # This library was specified with -dlopen.
+	  func_append dlfiles " $func_resolve_sysroot_result"
+	  prev=
+	elif test "$prev" = dlprefiles; then
+	  # The library was specified with -dlpreopen.
+	  func_append dlprefiles " $func_resolve_sysroot_result"
+	  prev=
+	else
+	  func_append deplibs " $func_resolve_sysroot_result"
+	fi
+	continue
+	;;
+
+      # Some other compiler argument.
+      *)
+	# Unknown arguments in both finalize_command and compile_command need
+	# to be aesthetically quoted because they are evaled later.
+	func_quote_for_eval "$arg"
+	arg="$func_quote_for_eval_result"
+	;;
+      esac # arg
+
+      # Now actually substitute the argument into the commands.
+      if test -n "$arg"; then
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+      fi
+    done # argument parsing loop
+
+    test -n "$prev" && \
+      func_fatal_help "the \`$prevarg' option requires an argument"
+
+    if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
+      eval arg=\"$export_dynamic_flag_spec\"
+      func_append compile_command " $arg"
+      func_append finalize_command " $arg"
+    fi
+
+    oldlibs=
+    # calculate the name of the file, without its directory
+    func_basename "$output"
+    outputname="$func_basename_result"
+    libobjs_save="$libobjs"
+
+    if test -n "$shlibpath_var"; then
+      # get the directories listed in $shlibpath_var
+      eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\`
+    else
+      shlib_search_path=
+    fi
+    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
+    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
+
+    func_dirname "$output" "/" ""
+    output_objdir="$func_dirname_result$objdir"
+    func_to_tool_file "$output_objdir/"
+    tool_output_objdir=$func_to_tool_file_result
+    # Create the object directory.
+    func_mkdir_p "$output_objdir"
+
+    # Determine the type of output
+    case $output in
+    "")
+      func_fatal_help "you must specify an output file"
+      ;;
+    *.$libext) linkmode=oldlib ;;
+    *.lo | *.$objext) linkmode=obj ;;
+    *.la) linkmode=lib ;;
+    *) linkmode=prog ;; # Anything else should be a program.
+    esac
+
+    specialdeplibs=
+
+    libs=
+    # Find all interdependent deplibs by searching for libraries
+    # that are linked more than once (e.g. -la -lb -la)
+    for deplib in $deplibs; do
+      if $opt_preserve_dup_deps ; then
+	case "$libs " in
+	*" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	esac
+      fi
+      func_append libs " $deplib"
+    done
+
+    if test "$linkmode" = lib; then
+      libs="$predeps $libs $compiler_lib_search_path $postdeps"
+
+      # Compute libraries that are listed more than once in $predeps
+      # $postdeps and mark them as special (i.e., whose duplicates are
+      # not to be eliminated).
+      pre_post_deps=
+      if $opt_duplicate_compiler_generated_deps; then
+	for pre_post_dep in $predeps $postdeps; do
+	  case "$pre_post_deps " in
+	  *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
+	  esac
+	  func_append pre_post_deps " $pre_post_dep"
+	done
+      fi
+      pre_post_deps=
+    fi
+
+    deplibs=
+    newdependency_libs=
+    newlib_search_path=
+    need_relink=no # whether we're linking any uninstalled libtool libraries
+    notinst_deplibs= # not-installed libtool libraries
+    notinst_path= # paths that contain not-installed libtool libraries
+
+    case $linkmode in
+    lib)
+	passes="conv dlpreopen link"
+	for file in $dlfiles $dlprefiles; do
+	  case $file in
+	  *.la) ;;
+	  *)
+	    func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
+	    ;;
+	  esac
+	done
+	;;
+    prog)
+	compile_deplibs=
+	finalize_deplibs=
+	alldeplibs=no
+	newdlfiles=
+	newdlprefiles=
+	passes="conv scan dlopen dlpreopen link"
+	;;
+    *)  passes="conv"
+	;;
+    esac
+
+    for pass in $passes; do
+      # The preopen pass in lib mode reverses $deplibs; put it back here
+      # so that -L comes before libs that need it for instance...
+      if test "$linkmode,$pass" = "lib,link"; then
+	## FIXME: Find the place where the list is rebuilt in the wrong
+	##        order, and fix it there properly
+        tmp_deplibs=
+	for deplib in $deplibs; do
+	  tmp_deplibs="$deplib $tmp_deplibs"
+	done
+	deplibs="$tmp_deplibs"
+      fi
+
+      if test "$linkmode,$pass" = "lib,link" ||
+	 test "$linkmode,$pass" = "prog,scan"; then
+	libs="$deplibs"
+	deplibs=
+      fi
+      if test "$linkmode" = prog; then
+	case $pass in
+	dlopen) libs="$dlfiles" ;;
+	dlpreopen) libs="$dlprefiles" ;;
+	link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
+	esac
+      fi
+      if test "$linkmode,$pass" = "lib,dlpreopen"; then
+	# Collect and forward deplibs of preopened libtool libs
+	for lib in $dlprefiles; do
+	  # Ignore non-libtool-libs
+	  dependency_libs=
+	  func_resolve_sysroot "$lib"
+	  case $lib in
+	  *.la)	func_source "$func_resolve_sysroot_result" ;;
+	  esac
+
+	  # Collect preopened libtool deplibs, except any this library
+	  # has declared as weak libs
+	  for deplib in $dependency_libs; do
+	    func_basename "$deplib"
+            deplib_base=$func_basename_result
+	    case " $weak_libs " in
+	    *" $deplib_base "*) ;;
+	    *) func_append deplibs " $deplib" ;;
+	    esac
+	  done
+	done
+	libs="$dlprefiles"
+      fi
+      if test "$pass" = dlopen; then
+	# Collect dlpreopened libraries
+	save_deplibs="$deplibs"
+	deplibs=
+      fi
+
+      for deplib in $libs; do
+	lib=
+	found=no
+	case $deplib in
+	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe|-threads)
+	  if test "$linkmode,$pass" = "prog,link"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    func_append compiler_flags " $deplib"
+	    if test "$linkmode" = lib ; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-l*)
+	  if test "$linkmode" != lib && test "$linkmode" != prog; then
+	    func_warning "\`-l' is ignored for archives/objects"
+	    continue
+	  fi
+	  func_stripname '-l' '' "$deplib"
+	  name=$func_stripname_result
+	  if test "$linkmode" = lib; then
+	    searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
+	  else
+	    searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
+	  fi
+	  for searchdir in $searchdirs; do
+	    for search_ext in .la $std_shrext .so .a; do
+	      # Search the libtool library
+	      lib="$searchdir/lib${name}${search_ext}"
+	      if test -f "$lib"; then
+		if test "$search_ext" = ".la"; then
+		  found=yes
+		else
+		  found=no
+		fi
+		break 2
+	      fi
+	    done
+	  done
+	  if test "$found" != yes; then
+	    # deplib doesn't seem to be a libtool library
+	    if test "$linkmode,$pass" = "prog,link"; then
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      deplibs="$deplib $deplibs"
+	      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    continue
+	  else # deplib is a libtool library
+	    # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
+	    # We need to do some special things here, and not later.
+	    if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+	      case " $predeps $postdeps " in
+	      *" $deplib "*)
+		if func_lalib_p "$lib"; then
+		  library_names=
+		  old_library=
+		  func_source "$lib"
+		  for l in $old_library $library_names; do
+		    ll="$l"
+		  done
+		  if test "X$ll" = "X$old_library" ; then # only static version available
+		    found=no
+		    func_dirname "$lib" "" "."
+		    ladir="$func_dirname_result"
+		    lib=$ladir/$old_library
+		    if test "$linkmode,$pass" = "prog,link"; then
+		      compile_deplibs="$deplib $compile_deplibs"
+		      finalize_deplibs="$deplib $finalize_deplibs"
+		    else
+		      deplibs="$deplib $deplibs"
+		      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
+		    fi
+		    continue
+		  fi
+		fi
+		;;
+	      *) ;;
+	      esac
+	    fi
+	  fi
+	  ;; # -l
+	*.ltframework)
+	  if test "$linkmode,$pass" = "prog,link"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    deplibs="$deplib $deplibs"
+	    if test "$linkmode" = lib ; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-L*)
+	  case $linkmode in
+	  lib)
+	    deplibs="$deplib $deplibs"
+	    test "$pass" = conv && continue
+	    newdependency_libs="$deplib $newdependency_libs"
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  prog)
+	    if test "$pass" = conv; then
+	      deplibs="$deplib $deplibs"
+	      continue
+	    fi
+	    if test "$pass" = scan; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  *)
+	    func_warning "\`-L' is ignored for archives/objects"
+	    ;;
+	  esac # linkmode
+	  continue
+	  ;; # -L
+	-R*)
+	  if test "$pass" = link; then
+	    func_stripname '-R' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    dir=$func_resolve_sysroot_result
+	    # Make sure the xrpath contains only unique directories.
+	    case "$xrpath " in
+	    *" $dir "*) ;;
+	    *) func_append xrpath " $dir" ;;
+	    esac
+	  fi
+	  deplibs="$deplib $deplibs"
+	  continue
+	  ;;
+	*.la)
+	  func_resolve_sysroot "$deplib"
+	  lib=$func_resolve_sysroot_result
+	  ;;
+	*.$libext)
+	  if test "$pass" = conv; then
+	    deplibs="$deplib $deplibs"
+	    continue
+	  fi
+	  case $linkmode in
+	  lib)
+	    # Linking convenience modules into shared libraries is allowed,
+	    # but linking other static libraries is non-portable.
+	    case " $dlpreconveniencelibs " in
+	    *" $deplib "*) ;;
+	    *)
+	      valid_a_lib=no
+	      case $deplibs_check_method in
+		match_pattern*)
+		  set dummy $deplibs_check_method; shift
+		  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+		  if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
+		    | $EGREP "$match_pattern_regex" > /dev/null; then
+		    valid_a_lib=yes
+		  fi
+		;;
+		pass_all)
+		  valid_a_lib=yes
+		;;
+	      esac
+	      if test "$valid_a_lib" != yes; then
+		echo
+		$ECHO "*** Warning: Trying to link with static lib archive $deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because the file extensions .$libext of this argument makes me believe"
+		echo "*** that it is just a static archive that I should not use here."
+	      else
+		echo
+		$ECHO "*** Warning: Linking the shared library $output against the"
+		$ECHO "*** static library $deplib is not portable!"
+		deplibs="$deplib $deplibs"
+	      fi
+	      ;;
+	    esac
+	    continue
+	    ;;
+	  prog)
+	    if test "$pass" != link; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    continue
+	    ;;
+	  esac # linkmode
+	  ;; # *.$libext
+	*.lo | *.$objext)
+	  if test "$pass" = conv; then
+	    deplibs="$deplib $deplibs"
+	  elif test "$linkmode" = prog; then
+	    if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
+	      # If there is no dlopen support or we're linking statically,
+	      # we need to preload.
+	      func_append newdlprefiles " $deplib"
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      func_append newdlfiles " $deplib"
+	    fi
+	  fi
+	  continue
+	  ;;
+	%DEPLIBS%)
+	  alldeplibs=yes
+	  continue
+	  ;;
+	esac # case $deplib
+
+	if test "$found" = yes || test -f "$lib"; then :
+	else
+	  func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
+	fi
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$lib" \
+	  || func_fatal_error "\`$lib' is not a valid libtool archive"
+
+	func_dirname "$lib" "" "."
+	ladir="$func_dirname_result"
+
+	dlname=
+	dlopen=
+	dlpreopen=
+	libdir=
+	library_names=
+	old_library=
+	inherited_linker_flags=
+	# If the library was installed with an old release of libtool,
+	# it will not redefine variables installed, or shouldnotlink
+	installed=yes
+	shouldnotlink=no
+	avoidtemprpath=
+
+
+	# Read the .la file
+	func_source "$lib"
+
+	# Convert "-framework foo" to "foo.ltframework"
+	if test -n "$inherited_linker_flags"; then
+	  tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
+	  for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
+	    case " $new_inherited_linker_flags " in
+	      *" $tmp_inherited_linker_flag "*) ;;
+	      *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
+	    esac
+	  done
+	fi
+	dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	if test "$linkmode,$pass" = "lib,link" ||
+	   test "$linkmode,$pass" = "prog,scan" ||
+	   { test "$linkmode" != prog && test "$linkmode" != lib; }; then
+	  test -n "$dlopen" && func_append dlfiles " $dlopen"
+	  test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
+	fi
+
+	if test "$pass" = conv; then
+	  # Only check for convenience libraries
+	  deplibs="$lib $deplibs"
+	  if test -z "$libdir"; then
+	    if test -z "$old_library"; then
+	      func_fatal_error "cannot find name of link library for \`$lib'"
+	    fi
+	    # It is a libtool convenience library, so add in its objects.
+	    func_append convenience " $ladir/$objdir/$old_library"
+	    func_append old_convenience " $ladir/$objdir/$old_library"
+	  elif test "$linkmode" != prog && test "$linkmode" != lib; then
+	    func_fatal_error "\`$lib' is not a convenience library"
+	  fi
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    deplibs="$deplib $deplibs"
+	    if $opt_preserve_dup_deps ; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done
+	  continue
+	fi # $pass = conv
+
+
+	# Get the name of the library we link against.
+	linklib=
+	if test -n "$old_library" &&
+	   { test "$prefer_static_libs" = yes ||
+	     test "$prefer_static_libs,$installed" = "built,no"; }; then
+	  linklib=$old_library
+	else
+	  for l in $old_library $library_names; do
+	    linklib="$l"
+	  done
+	fi
+	if test -z "$linklib"; then
+	  func_fatal_error "cannot find name of link library for \`$lib'"
+	fi
+
+	# This library was specified with -dlopen.
+	if test "$pass" = dlopen; then
+	  if test -z "$libdir"; then
+	    func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
+	  fi
+	  if test -z "$dlname" ||
+	     test "$dlopen_support" != yes ||
+	     test "$build_libtool_libs" = no; then
+	    # If there is no dlname, no dlopen support or we're linking
+	    # statically, we need to preload.  We also need to preload any
+	    # dependent libraries so libltdl's deplib preloader doesn't
+	    # bomb out in the load deplibs phase.
+	    func_append dlprefiles " $lib $dependency_libs"
+	  else
+	    func_append newdlfiles " $lib"
+	  fi
+	  continue
+	fi # $pass = dlopen
+
+	# We need an absolute path.
+	case $ladir in
+	[\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
+	*)
+	  abs_ladir=`cd "$ladir" && pwd`
+	  if test -z "$abs_ladir"; then
+	    func_warning "cannot determine absolute directory name of \`$ladir'"
+	    func_warning "passing it literally to the linker, although it might fail"
+	    abs_ladir="$ladir"
+	  fi
+	  ;;
+	esac
+	func_basename "$lib"
+	laname="$func_basename_result"
+
+	# Find the relevant object directory and library name.
+	if test "X$installed" = Xyes; then
+	  if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    func_warning "library \`$lib' was moved."
+	    dir="$ladir"
+	    absdir="$abs_ladir"
+	    libdir="$abs_ladir"
+	  else
+	    dir="$lt_sysroot$libdir"
+	    absdir="$lt_sysroot$libdir"
+	  fi
+	  test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
+	else
+	  if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    dir="$ladir"
+	    absdir="$abs_ladir"
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  else
+	    dir="$ladir/$objdir"
+	    absdir="$abs_ladir/$objdir"
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  fi
+	fi # $installed = yes
+	func_stripname 'lib' '.la' "$laname"
+	name=$func_stripname_result
+
+	# This library was specified with -dlpreopen.
+	if test "$pass" = dlpreopen; then
+	  if test -z "$libdir" && test "$linkmode" = prog; then
+	    func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
+	  fi
+	  case "$host" in
+	    # special handling for platforms with PE-DLLs.
+	    *cygwin* | *mingw* | *cegcc* )
+	      # Linker will automatically link against shared library if both
+	      # static and shared are present.  Therefore, ensure we extract
+	      # symbols from the import library if a shared library is present
+	      # (otherwise, the dlopen module name will be incorrect).  We do
+	      # this by putting the import library name into $newdlprefiles.
+	      # We recover the dlopen module name by 'saving' the la file
+	      # name in a special purpose variable, and (later) extracting the
+	      # dlname from the la file.
+	      if test -n "$dlname"; then
+	        func_tr_sh "$dir/$linklib"
+	        eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
+	        func_append newdlprefiles " $dir/$linklib"
+	      else
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      fi
+	    ;;
+	    * )
+	      # Prefer using a static library (so that no silly _DYNAMIC symbols
+	      # are required to link).
+	      if test -n "$old_library"; then
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      # Otherwise, use the dlname, so that lt_dlopen finds it.
+	      elif test -n "$dlname"; then
+	        func_append newdlprefiles " $dir/$dlname"
+	      else
+	        func_append newdlprefiles " $dir/$linklib"
+	      fi
+	    ;;
+	  esac
+	fi # $pass = dlpreopen
+
+	if test -z "$libdir"; then
+	  # Link the convenience library
+	  if test "$linkmode" = lib; then
+	    deplibs="$dir/$old_library $deplibs"
+	  elif test "$linkmode,$pass" = "prog,link"; then
+	    compile_deplibs="$dir/$old_library $compile_deplibs"
+	    finalize_deplibs="$dir/$old_library $finalize_deplibs"
+	  else
+	    deplibs="$lib $deplibs" # used for prog,scan pass
+	  fi
+	  continue
+	fi
+
+
+	if test "$linkmode" = prog && test "$pass" != link; then
+	  func_append newlib_search_path " $ladir"
+	  deplibs="$lib $deplibs"
+
+	  linkalldeplibs=no
+	  if test "$link_all_deplibs" != no || test -z "$library_names" ||
+	     test "$build_libtool_libs" = no; then
+	    linkalldeplibs=yes
+	  fi
+
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    case $deplib in
+	    -L*) func_stripname '-L' '' "$deplib"
+	         func_resolve_sysroot "$func_stripname_result"
+	         func_append newlib_search_path " $func_resolve_sysroot_result"
+		 ;;
+	    esac
+	    # Need to link against all dependency_libs?
+	    if test "$linkalldeplibs" = yes; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      # Need to hardcode shared library paths
+	      # or/and link against static libraries
+	      newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    if $opt_preserve_dup_deps ; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done # for deplib
+	  continue
+	fi # $linkmode = prog...
+
+	if test "$linkmode,$pass" = "prog,link"; then
+	  if test -n "$library_names" &&
+	     { { test "$prefer_static_libs" = no ||
+	         test "$prefer_static_libs,$installed" = "built,yes"; } ||
+	       test -z "$old_library"; }; then
+	    # We need to hardcode the library path
+	    if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
+	      # Make sure the rpath contains only unique directories.
+	      case "$temp_rpath:" in
+	      *"$absdir:"*) ;;
+	      *) func_append temp_rpath "$absdir:" ;;
+	      esac
+	    fi
+
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi # $linkmode,$pass = prog,link...
+
+	  if test "$alldeplibs" = yes &&
+	     { test "$deplibs_check_method" = pass_all ||
+	       { test "$build_libtool_libs" = yes &&
+		 test -n "$library_names"; }; }; then
+	    # We only need to search for static libraries
+	    continue
+	  fi
+	fi
+
+	link_static=no # Whether the deplib will be linked statically
+	use_static_libs=$prefer_static_libs
+	if test "$use_static_libs" = built && test "$installed" = yes; then
+	  use_static_libs=no
+	fi
+	if test -n "$library_names" &&
+	   { test "$use_static_libs" = no || test -z "$old_library"; }; then
+	  case $host in
+	  *cygwin* | *mingw* | *cegcc*)
+	      # No point in relinking DLLs because paths are not encoded
+	      func_append notinst_deplibs " $lib"
+	      need_relink=no
+	    ;;
+	  *)
+	    if test "$installed" = no; then
+	      func_append notinst_deplibs " $lib"
+	      need_relink=yes
+	    fi
+	    ;;
+	  esac
+	  # This is a shared library
+
+	  # Warn about portability, can't link against -module's on some
+	  # systems (darwin).  Don't bleat about dlopened modules though!
+	  dlopenmodule=""
+	  for dlpremoduletest in $dlprefiles; do
+	    if test "X$dlpremoduletest" = "X$lib"; then
+	      dlopenmodule="$dlpremoduletest"
+	      break
+	    fi
+	  done
+	  if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
+	    echo
+	    if test "$linkmode" = prog; then
+	      $ECHO "*** Warning: Linking the executable $output against the loadable module"
+	    else
+	      $ECHO "*** Warning: Linking the shared library $output against the loadable module"
+	    fi
+	    $ECHO "*** $linklib is not portable!"
+	  fi
+	  if test "$linkmode" = lib &&
+	     test "$hardcode_into_libs" = yes; then
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi
+
+	  if test -n "$old_archive_from_expsyms_cmds"; then
+	    # figure out the soname
+	    set dummy $library_names
+	    shift
+	    realname="$1"
+	    shift
+	    libname=`eval "\\$ECHO \"$libname_spec\""`
+	    # use dlname if we got it. it's perfectly good, no?
+	    if test -n "$dlname"; then
+	      soname="$dlname"
+	    elif test -n "$soname_spec"; then
+	      # bleh windows
+	      case $host in
+	      *cygwin* | mingw* | *cegcc*)
+	        func_arith $current - $age
+		major=$func_arith_result
+		versuffix="-$major"
+		;;
+	      esac
+	      eval soname=\"$soname_spec\"
+	    else
+	      soname="$realname"
+	    fi
+
+	    # Make a new name for the extract_expsyms_cmds to use
+	    soroot="$soname"
+	    func_basename "$soroot"
+	    soname="$func_basename_result"
+	    func_stripname 'lib' '.dll' "$soname"
+	    newlib=libimp-$func_stripname_result.a
+
+	    # If the library has no export list, then create one now
+	    if test -f "$output_objdir/$soname-def"; then :
+	    else
+	      func_verbose "extracting exported symbol list from \`$soname'"
+	      func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
+	    fi
+
+	    # Create $newlib
+	    if test -f "$output_objdir/$newlib"; then :; else
+	      func_verbose "generating import library for \`$soname'"
+	      func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
+	    fi
+	    # make sure the library variables are pointing to the new library
+	    dir=$output_objdir
+	    linklib=$newlib
+	  fi # test -n "$old_archive_from_expsyms_cmds"
+
+	  if test "$linkmode" = prog || test "$opt_mode" != relink; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    lib_linked=yes
+	    case $hardcode_action in
+	    immediate | unsupported)
+	      if test "$hardcode_direct" = no; then
+		add="$dir/$linklib"
+		case $host in
+		  *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
+		  *-*-sysv4*uw2*) add_dir="-L$dir" ;;
+		  *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
+		    *-*-unixware7*) add_dir="-L$dir" ;;
+		  *-*-darwin* )
+		    # if the lib is a (non-dlopened) module then we can not
+		    # link against it, someone is ignoring the earlier warnings
+		    if /usr/bin/file -L $add 2> /dev/null |
+			 $GREP ": [^:]* bundle" >/dev/null ; then
+		      if test "X$dlopenmodule" != "X$lib"; then
+			$ECHO "*** Warning: lib $linklib is a module, not a shared library"
+			if test -z "$old_library" ; then
+			  echo
+			  echo "*** And there doesn't seem to be a static archive available"
+			  echo "*** The link will probably fail, sorry"
+			else
+			  add="$dir/$old_library"
+			fi
+		      elif test -n "$old_library"; then
+			add="$dir/$old_library"
+		      fi
+		    fi
+		esac
+	      elif test "$hardcode_minus_L" = no; then
+		case $host in
+		*-*-sunos*) add_shlibpath="$dir" ;;
+		esac
+		add_dir="-L$dir"
+		add="-l$name"
+	      elif test "$hardcode_shlibpath_var" = no; then
+		add_shlibpath="$dir"
+		add="-l$name"
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    relink)
+	      if test "$hardcode_direct" = yes &&
+	         test "$hardcode_direct_absolute" = no; then
+		add="$dir/$linklib"
+	      elif test "$hardcode_minus_L" = yes; then
+		add_dir="-L$dir"
+		# Try looking first in the location we're being installed to.
+		if test -n "$inst_prefix_dir"; then
+		  case $libdir in
+		    [\\/]*)
+		      func_append add_dir " -L$inst_prefix_dir$libdir"
+		      ;;
+		  esac
+		fi
+		add="-l$name"
+	      elif test "$hardcode_shlibpath_var" = yes; then
+		add_shlibpath="$dir"
+		add="-l$name"
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    *) lib_linked=no ;;
+	    esac
+
+	    if test "$lib_linked" != yes; then
+	      func_fatal_configuration "unsupported hardcode properties"
+	    fi
+
+	    if test -n "$add_shlibpath"; then
+	      case :$compile_shlibpath: in
+	      *":$add_shlibpath:"*) ;;
+	      *) func_append compile_shlibpath "$add_shlibpath:" ;;
+	      esac
+	    fi
+	    if test "$linkmode" = prog; then
+	      test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
+	      test -n "$add" && compile_deplibs="$add $compile_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	      if test "$hardcode_direct" != yes &&
+		 test "$hardcode_minus_L" != yes &&
+		 test "$hardcode_shlibpath_var" = yes; then
+		case :$finalize_shlibpath: in
+		*":$libdir:"*) ;;
+		*) func_append finalize_shlibpath "$libdir:" ;;
+		esac
+	      fi
+	    fi
+	  fi
+
+	  if test "$linkmode" = prog || test "$opt_mode" = relink; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    # Finalize command for both is simple: just hardcode it.
+	    if test "$hardcode_direct" = yes &&
+	       test "$hardcode_direct_absolute" = no; then
+	      add="$libdir/$linklib"
+	    elif test "$hardcode_minus_L" = yes; then
+	      add_dir="-L$libdir"
+	      add="-l$name"
+	    elif test "$hardcode_shlibpath_var" = yes; then
+	      case :$finalize_shlibpath: in
+	      *":$libdir:"*) ;;
+	      *) func_append finalize_shlibpath "$libdir:" ;;
+	      esac
+	      add="-l$name"
+	    elif test "$hardcode_automatic" = yes; then
+	      if test -n "$inst_prefix_dir" &&
+		 test -f "$inst_prefix_dir$libdir/$linklib" ; then
+		add="$inst_prefix_dir$libdir/$linklib"
+	      else
+		add="$libdir/$linklib"
+	      fi
+	    else
+	      # We cannot seem to hardcode it, guess we'll fake it.
+	      add_dir="-L$libdir"
+	      # Try looking first in the location we're being installed to.
+	      if test -n "$inst_prefix_dir"; then
+		case $libdir in
+		  [\\/]*)
+		    func_append add_dir " -L$inst_prefix_dir$libdir"
+		    ;;
+		esac
+	      fi
+	      add="-l$name"
+	    fi
+
+	    if test "$linkmode" = prog; then
+	      test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
+	      test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	    fi
+	  fi
+	elif test "$linkmode" = prog; then
+	  # Here we assume that one of hardcode_direct or hardcode_minus_L
+	  # is not unsupported.  This is valid on all known static and
+	  # shared platforms.
+	  if test "$hardcode_direct" != unsupported; then
+	    test -n "$old_library" && linklib="$old_library"
+	    compile_deplibs="$dir/$linklib $compile_deplibs"
+	    finalize_deplibs="$dir/$linklib $finalize_deplibs"
+	  else
+	    compile_deplibs="-l$name -L$dir $compile_deplibs"
+	    finalize_deplibs="-l$name -L$dir $finalize_deplibs"
+	  fi
+	elif test "$build_libtool_libs" = yes; then
+	  # Not a shared library
+	  if test "$deplibs_check_method" != pass_all; then
+	    # We're trying link a shared library against a static one
+	    # but the system doesn't support it.
+
+	    # Just print a warning and add the library to dependency_libs so
+	    # that the program can be linked against the static library.
+	    echo
+	    $ECHO "*** Warning: This system can not link to static lib archive $lib."
+	    echo "*** I have the capability to make that library automatically link in when"
+	    echo "*** you link to this library.  But I can only do this if you have a"
+	    echo "*** shared version of the library, which you do not appear to have."
+	    if test "$module" = yes; then
+	      echo "*** But as you try to build a module library, libtool will still create "
+	      echo "*** a static module, that should work as long as the dlopening application"
+	      echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
+	      if test -z "$global_symbol_pipe"; then
+		echo
+		echo "*** However, this would only work if libtool was able to extract symbol"
+		echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
+		echo "*** not find such a program.  So, this module is probably useless."
+		echo "*** \`nm' from GNU binutils and a full rebuild may help."
+	      fi
+	      if test "$build_old_libs" = no; then
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  else
+	    deplibs="$dir/$old_library $deplibs"
+	    link_static=yes
+	  fi
+	fi # link shared/static library?
+
+	if test "$linkmode" = lib; then
+	  if test -n "$dependency_libs" &&
+	     { test "$hardcode_into_libs" != yes ||
+	       test "$build_old_libs" = yes ||
+	       test "$link_static" = yes; }; then
+	    # Extract -R from dependency_libs
+	    temp_deplibs=
+	    for libdir in $dependency_libs; do
+	      case $libdir in
+	      -R*) func_stripname '-R' '' "$libdir"
+	           temp_xrpath=$func_stripname_result
+		   case " $xrpath " in
+		   *" $temp_xrpath "*) ;;
+		   *) func_append xrpath " $temp_xrpath";;
+		   esac;;
+	      *) func_append temp_deplibs " $libdir";;
+	      esac
+	    done
+	    dependency_libs="$temp_deplibs"
+	  fi
+
+	  func_append newlib_search_path " $absdir"
+	  # Link against this library
+	  test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
+	  # ... and its dependency_libs
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    newdependency_libs="$deplib $newdependency_libs"
+	    case $deplib in
+              -L*) func_stripname '-L' '' "$deplib"
+                   func_resolve_sysroot "$func_stripname_result";;
+              *) func_resolve_sysroot "$deplib" ;;
+            esac
+	    if $opt_preserve_dup_deps ; then
+	      case "$tmp_libs " in
+	      *" $func_resolve_sysroot_result "*)
+                func_append specialdeplibs " $func_resolve_sysroot_result" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $func_resolve_sysroot_result"
+	  done
+
+	  if test "$link_all_deplibs" != no; then
+	    # Add the search paths of all dependency libraries
+	    for deplib in $dependency_libs; do
+	      path=
+	      case $deplib in
+	      -L*) path="$deplib" ;;
+	      *.la)
+	        func_resolve_sysroot "$deplib"
+	        deplib=$func_resolve_sysroot_result
+	        func_dirname "$deplib" "" "."
+		dir=$func_dirname_result
+		# We need an absolute path.
+		case $dir in
+		[\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
+		*)
+		  absdir=`cd "$dir" && pwd`
+		  if test -z "$absdir"; then
+		    func_warning "cannot determine absolute directory name of \`$dir'"
+		    absdir="$dir"
+		  fi
+		  ;;
+		esac
+		if $GREP "^installed=no" $deplib > /dev/null; then
+		case $host in
+		*-*-darwin*)
+		  depdepl=
+		  eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
+		  if test -n "$deplibrary_names" ; then
+		    for tmp in $deplibrary_names ; do
+		      depdepl=$tmp
+		    done
+		    if test -f "$absdir/$objdir/$depdepl" ; then
+		      depdepl="$absdir/$objdir/$depdepl"
+		      darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+                      if test -z "$darwin_install_name"; then
+                          darwin_install_name=`${OTOOL64} -L $depdepl  | awk '{if (NR == 2) {print $1;exit}}'`
+                      fi
+		      func_append compiler_flags " ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
+		      func_append linker_flags " -dylib_file ${darwin_install_name}:${depdepl}"
+		      path=
+		    fi
+		  fi
+		  ;;
+		*)
+		  path="-L$absdir/$objdir"
+		  ;;
+		esac
+		else
+		  eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+		  test -z "$libdir" && \
+		    func_fatal_error "\`$deplib' is not a valid libtool archive"
+		  test "$absdir" != "$libdir" && \
+		    func_warning "\`$deplib' seems to be moved"
+
+		  path="-L$absdir"
+		fi
+		;;
+	      esac
+	      case " $deplibs " in
+	      *" $path "*) ;;
+	      *) deplibs="$path $deplibs" ;;
+	      esac
+	    done
+	  fi # link_all_deplibs != no
+	fi # linkmode = lib
+      done # for deplib in $libs
+      if test "$pass" = link; then
+	if test "$linkmode" = "prog"; then
+	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
+	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
+	else
+	  compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	fi
+      fi
+      dependency_libs="$newdependency_libs"
+      if test "$pass" = dlpreopen; then
+	# Link the dlpreopened libraries before other libraries
+	for deplib in $save_deplibs; do
+	  deplibs="$deplib $deplibs"
+	done
+      fi
+      if test "$pass" != dlopen; then
+	if test "$pass" != conv; then
+	  # Make sure lib_search_path contains only unique directories.
+	  lib_search_path=
+	  for dir in $newlib_search_path; do
+	    case "$lib_search_path " in
+	    *" $dir "*) ;;
+	    *) func_append lib_search_path " $dir" ;;
+	    esac
+	  done
+	  newlib_search_path=
+	fi
+
+	if test "$linkmode,$pass" != "prog,link"; then
+	  vars="deplibs"
+	else
+	  vars="compile_deplibs finalize_deplibs"
+	fi
+	for var in $vars dependency_libs; do
+	  # Add libraries to $var in reverse order
+	  eval tmp_libs=\"\$$var\"
+	  new_libs=
+	  for deplib in $tmp_libs; do
+	    # FIXME: Pedantically, this is the right thing to do, so
+	    #        that some nasty dependency loop isn't accidentally
+	    #        broken:
+	    #new_libs="$deplib $new_libs"
+	    # Pragmatically, this seems to cause very few problems in
+	    # practice:
+	    case $deplib in
+	    -L*) new_libs="$deplib $new_libs" ;;
+	    -R*) ;;
+	    *)
+	      # And here is the reason: when a library appears more
+	      # than once as an explicit dependence of a library, or
+	      # is implicitly linked in more than once by the
+	      # compiler, it is considered special, and multiple
+	      # occurrences thereof are not removed.  Compare this
+	      # with having the same library being listed as a
+	      # dependency of multiple other libraries: in this case,
+	      # we know (pedantically, we assume) the library does not
+	      # need to be listed more than once, so we keep only the
+	      # last copy.  This is not always right, but it is rare
+	      # enough that we require users that really mean to play
+	      # such unportable linking tricks to link the library
+	      # using -Wl,-lname, so that libtool does not consider it
+	      # for duplicate removal.
+	      case " $specialdeplibs " in
+	      *" $deplib "*) new_libs="$deplib $new_libs" ;;
+	      *)
+		case " $new_libs " in
+		*" $deplib "*) ;;
+		*) new_libs="$deplib $new_libs" ;;
+		esac
+		;;
+	      esac
+	      ;;
+	    esac
+	  done
+	  tmp_libs=
+	  for deplib in $new_libs; do
+	    case $deplib in
+	    -L*)
+	      case " $tmp_libs " in
+	      *" $deplib "*) ;;
+	      *) func_append tmp_libs " $deplib" ;;
+	      esac
+	      ;;
+	    *) func_append tmp_libs " $deplib" ;;
+	    esac
+	  done
+	  eval $var=\"$tmp_libs\"
+	done # for var
+      fi
+      # Last step: remove runtime libs from dependency_libs
+      # (they stay in deplibs)
+      tmp_libs=
+      for i in $dependency_libs ; do
+	case " $predeps $postdeps $compiler_lib_search_path " in
+	*" $i "*)
+	  i=""
+	  ;;
+	esac
+	if test -n "$i" ; then
+	  func_append tmp_libs " $i"
+	fi
+      done
+      dependency_libs=$tmp_libs
+    done # for pass
+    if test "$linkmode" = prog; then
+      dlfiles="$newdlfiles"
+    fi
+    if test "$linkmode" = prog || test "$linkmode" = lib; then
+      dlprefiles="$newdlprefiles"
+    fi
+
+    case $linkmode in
+    oldlib)
+      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+	func_warning "\`-dlopen' is ignored for archives"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "\`-l' and \`-L' are ignored for archives" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "\`-rpath' is ignored for archives"
+
+      test -n "$xrpath" && \
+	func_warning "\`-R' is ignored for archives"
+
+      test -n "$vinfo" && \
+	func_warning "\`-version-info/-version-number' is ignored for archives"
+
+      test -n "$release" && \
+	func_warning "\`-release' is ignored for archives"
+
+      test -n "$export_symbols$export_symbols_regex" && \
+	func_warning "\`-export-symbols' is ignored for archives"
+
+      # Now set the variables for building old libraries.
+      build_libtool_libs=no
+      oldlibs="$output"
+      func_append objs "$old_deplibs"
+      ;;
+
+    lib)
+      # Make sure we only generate libraries of the form `libNAME.la'.
+      case $outputname in
+      lib*)
+	func_stripname 'lib' '.la' "$outputname"
+	name=$func_stripname_result
+	eval shared_ext=\"$shrext_cmds\"
+	eval libname=\"$libname_spec\"
+	;;
+      *)
+	test "$module" = no && \
+	  func_fatal_help "libtool library \`$output' must begin with \`lib'"
+
+	if test "$need_lib_prefix" != no; then
+	  # Add the "lib" prefix for modules if required
+	  func_stripname '' '.la' "$outputname"
+	  name=$func_stripname_result
+	  eval shared_ext=\"$shrext_cmds\"
+	  eval libname=\"$libname_spec\"
+	else
+	  func_stripname '' '.la' "$outputname"
+	  libname=$func_stripname_result
+	fi
+	;;
+      esac
+
+      if test -n "$objs"; then
+	if test "$deplibs_check_method" != pass_all; then
+	  func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
+	else
+	  echo
+	  $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
+	  $ECHO "*** objects $objs is not portable!"
+	  func_append libobjs " $objs"
+	fi
+      fi
+
+      test "$dlself" != no && \
+	func_warning "\`-dlopen self' is ignored for libtool libraries"
+
+      set dummy $rpath
+      shift
+      test "$#" -gt 1 && \
+	func_warning "ignoring multiple \`-rpath's for a libtool library"
+
+      install_libdir="$1"
+
+      oldlibs=
+      if test -z "$rpath"; then
+	if test "$build_libtool_libs" = yes; then
+	  # Building a libtool convenience library.
+	  # Some compilers have problems with a `.al' extension so
+	  # convenience libraries should have the same extension an
+	  # archive normally would.
+	  oldlibs="$output_objdir/$libname.$libext $oldlibs"
+	  build_libtool_libs=convenience
+	  build_old_libs=yes
+	fi
+
+	test -n "$vinfo" && \
+	  func_warning "\`-version-info/-version-number' is ignored for convenience libraries"
+
+	test -n "$release" && \
+	  func_warning "\`-release' is ignored for convenience libraries"
+      else
+
+	# Parse the version information argument.
+	save_ifs="$IFS"; IFS=':'
+	set dummy $vinfo 0 0 0
+	shift
+	IFS="$save_ifs"
+
+	test -n "$7" && \
+	  func_fatal_help "too many parameters to \`-version-info'"
+
+	# convert absolute version numbers to libtool ages
+	# this retains compatibility with .la files and attempts
+	# to make the code below a bit more comprehensible
+
+	case $vinfo_number in
+	yes)
+	  number_major="$1"
+	  number_minor="$2"
+	  number_revision="$3"
+	  #
+	  # There are really only two kinds -- those that
+	  # use the current revision as the major version
+	  # and those that subtract age and use age as
+	  # a minor version.  But, then there is irix
+	  # which has an extra 1 added just for fun
+	  #
+	  case $version_type in
+	  darwin|linux|osf|windows|none)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age="$number_minor"
+	    revision="$number_revision"
+	    ;;
+	  freebsd-aout|freebsd-elf|qnx|sunos)
+	    current="$number_major"
+	    revision="$number_minor"
+	    age="0"
+	    ;;
+	  irix|nonstopux)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age="$number_minor"
+	    revision="$number_minor"
+	    lt_irix_increment=no
+	    ;;
+	  esac
+	  ;;
+	no)
+	  current="$1"
+	  revision="$2"
+	  age="$3"
+	  ;;
+	esac
+
+	# Check that each of the things are valid numbers.
+	case $current in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "CURRENT \`$current' must be a nonnegative integer"
+	  func_fatal_error "\`$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $revision in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "REVISION \`$revision' must be a nonnegative integer"
+	  func_fatal_error "\`$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $age in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "AGE \`$age' must be a nonnegative integer"
+	  func_fatal_error "\`$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	if test "$age" -gt "$current"; then
+	  func_error "AGE \`$age' is greater than the current interface number \`$current'"
+	  func_fatal_error "\`$vinfo' is not valid version information"
+	fi
+
+	# Calculate the version variables.
+	major=
+	versuffix=
+	verstring=
+	case $version_type in
+	none) ;;
+
+	darwin)
+	  # Like Linux, but with the current version available in
+	  # verstring for coding it into the library header
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix="$major.$age.$revision"
+	  # Darwin ld doesn't like 0 for these options...
+	  func_arith $current + 1
+	  minor_current=$func_arith_result
+	  xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
+	  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+	  ;;
+
+	freebsd-aout)
+	  major=".$current"
+	  versuffix=".$current.$revision";
+	  ;;
+
+	freebsd-elf)
+	  major=".$current"
+	  versuffix=".$current"
+	  ;;
+
+	irix | nonstopux)
+	  if test "X$lt_irix_increment" = "Xno"; then
+	    func_arith $current - $age
+	  else
+	    func_arith $current - $age + 1
+	  fi
+	  major=$func_arith_result
+
+	  case $version_type in
+	    nonstopux) verstring_prefix=nonstopux ;;
+	    *)         verstring_prefix=sgi ;;
+	  esac
+	  verstring="$verstring_prefix$major.$revision"
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$revision
+	  while test "$loop" -ne 0; do
+	    func_arith $revision - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring="$verstring_prefix$major.$iface:$verstring"
+	  done
+
+	  # Before this point, $major must not contain `.'.
+	  major=.$major
+	  versuffix="$major.$revision"
+	  ;;
+
+	linux)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix="$major.$age.$revision"
+	  ;;
+
+	osf)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=".$current.$age.$revision"
+	  verstring="$current.$age.$revision"
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$age
+	  while test "$loop" -ne 0; do
+	    func_arith $current - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring="$verstring:${iface}.0"
+	  done
+
+	  # Make executables depend on our current version.
+	  func_append verstring ":${current}.0"
+	  ;;
+
+	qnx)
+	  major=".$current"
+	  versuffix=".$current"
+	  ;;
+
+	sunos)
+	  major=".$current"
+	  versuffix=".$current.$revision"
+	  ;;
+
+	windows)
+	  # Use '-' rather than '.', since we only want one
+	  # extension on DOS 8.3 filesystems.
+	  func_arith $current - $age
+	  major=$func_arith_result
+	  versuffix="-$major"
+	  ;;
+
+	*)
+	  func_fatal_configuration "unknown library version type \`$version_type'"
+	  ;;
+	esac
+
+	# Clear the version info if we defaulted, and they specified a release.
+	if test -z "$vinfo" && test -n "$release"; then
+	  major=
+	  case $version_type in
+	  darwin)
+	    # we can't check for "0.0" in archive_cmds due to quoting
+	    # problems, so we reset it completely
+	    verstring=
+	    ;;
+	  *)
+	    verstring="0.0"
+	    ;;
+	  esac
+	  if test "$need_version" = no; then
+	    versuffix=
+	  else
+	    versuffix=".0.0"
+	  fi
+	fi
+
+	# Remove version info from name if versioning should be avoided
+	if test "$avoid_version" = yes && test "$need_version" = no; then
+	  major=
+	  versuffix=
+	  verstring=""
+	fi
+
+	# Check to see if the archive will have undefined symbols.
+	if test "$allow_undefined" = yes; then
+	  if test "$allow_undefined_flag" = unsupported; then
+	    func_warning "undefined symbols not allowed in $host shared libraries"
+	    build_libtool_libs=no
+	    build_old_libs=yes
+	  fi
+	else
+	  # Don't allow undefined symbols.
+	  allow_undefined_flag="$no_undefined_flag"
+	fi
+
+      fi
+
+      func_generate_dlsyms "$libname" "$libname" "yes"
+      func_append libobjs " $symfileobj"
+      test "X$libobjs" = "X " && libobjs=
+
+      if test "$opt_mode" != relink; then
+	# Remove our outputs, but don't remove object files since they
+	# may have been created when compiling PIC objects.
+	removelist=
+	tempremovelist=`$ECHO "$output_objdir/*"`
+	for p in $tempremovelist; do
+	  case $p in
+	    *.$objext | *.gcno)
+	       ;;
+	    $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
+	       if test "X$precious_files_regex" != "X"; then
+		 if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
+		 then
+		   continue
+		 fi
+	       fi
+	       func_append removelist " $p"
+	       ;;
+	    *) ;;
+	  esac
+	done
+	test -n "$removelist" && \
+	  func_show_eval "${RM}r \$removelist"
+      fi
+
+      # Now set the variables for building old libraries.
+      if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
+	func_append oldlibs " $output_objdir/$libname.$libext"
+
+	# Transform .lo files to .o files.
+	oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP`
+      fi
+
+      # Eliminate all temporary directories.
+      #for path in $notinst_path; do
+      #	lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
+      #	deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
+      #	dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
+      #done
+
+      if test -n "$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	temp_xrpath=
+	for libdir in $xrpath; do
+	  func_replace_sysroot "$libdir"
+	  func_append temp_xrpath " -R$func_replace_sysroot_result"
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+	if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
+	  dependency_libs="$temp_xrpath $dependency_libs"
+	fi
+      fi
+
+      # Make sure dlfiles contains only unique files that won't be dlpreopened
+      old_dlfiles="$dlfiles"
+      dlfiles=
+      for lib in $old_dlfiles; do
+	case " $dlprefiles $dlfiles " in
+	*" $lib "*) ;;
+	*) func_append dlfiles " $lib" ;;
+	esac
+      done
+
+      # Make sure dlprefiles contains only unique files
+      old_dlprefiles="$dlprefiles"
+      dlprefiles=
+      for lib in $old_dlprefiles; do
+	case "$dlprefiles " in
+	*" $lib "*) ;;
+	*) func_append dlprefiles " $lib" ;;
+	esac
+      done
+
+      if test "$build_libtool_libs" = yes; then
+	if test -n "$rpath"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # these systems don't actually have a c library (as such)!
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C library is in the System framework
+	    func_append deplibs " System.ltframework"
+	    ;;
+	  *-*-netbsd*)
+	    # Don't link with libc until the a.out ld.so is fixed.
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	    # Do not include libc due to us having libc/libc_r.
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    ;;
+	  *)
+	    # Add libc to deplibs on all other systems if necessary.
+	    if test "$build_libtool_need_lc" = "yes"; then
+	      func_append deplibs " -lc"
+	    fi
+	    ;;
+	  esac
+	fi
+
+	# Transform deplibs into only deplibs that can be linked in shared.
+	name_save=$name
+	libname_save=$libname
+	release_save=$release
+	versuffix_save=$versuffix
+	major_save=$major
+	# I'm not sure if I'm treating the release correctly.  I think
+	# release should show up in the -l (ie -lgmp5) so we don't want to
+	# add it in twice.  Is that correct?
+	release=""
+	versuffix=""
+	major=""
+	newdeplibs=
+	droppeddeps=no
+	case $deplibs_check_method in
+	pass_all)
+	  # Don't check for shared/static.  Everything works.
+	  # This might be a little naive.  We might want to check
+	  # whether the library exists or not.  But this is on
+	  # osf3 & osf4 and I'm not really sure... Just
+	  # implementing what was already the behavior.
+	  newdeplibs=$deplibs
+	  ;;
+	test_compile)
+	  # This code stresses the "libraries are programs" paradigm to its
+	  # limits. Maybe even breaks it.  We compile a program, linking it
+	  # against the deplibs as a proxy for the library.  Then we can check
+	  # whether they linked in statically or dynamically with ldd.
+	  $opt_dry_run || $RM conftest.c
+	  cat > conftest.c <<EOF
+	  int main() { return 0; }
+EOF
+	  $opt_dry_run || $RM conftest
+	  if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
+	    ldd_output=`ldd conftest`
+	    for i in $deplibs; do
+	      case $i in
+	      -l*)
+		func_stripname -l '' "$i"
+		name=$func_stripname_result
+		if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+		  case " $predeps $postdeps " in
+		  *" $i "*)
+		    func_append newdeplibs " $i"
+		    i=""
+		    ;;
+		  esac
+		fi
+		if test -n "$i" ; then
+		  libname=`eval "\\$ECHO \"$libname_spec\""`
+		  deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
+		  set dummy $deplib_matches; shift
+		  deplib_match=$1
+		  if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
+		    func_append newdeplibs " $i"
+		  else
+		    droppeddeps=yes
+		    echo
+		    $ECHO "*** Warning: dynamic linker does not accept needed library $i."
+		    echo "*** I have the capability to make that library automatically link in when"
+		    echo "*** you link to this library.  But I can only do this if you have a"
+		    echo "*** shared version of the library, which I believe you do not have"
+		    echo "*** because a test_compile did reveal that the linker did not use it for"
+		    echo "*** its dynamic dependency list that programs get resolved with at runtime."
+		  fi
+		fi
+		;;
+	      *)
+		func_append newdeplibs " $i"
+		;;
+	      esac
+	    done
+	  else
+	    # Error occurred in the first compile.  Let's try to salvage
+	    # the situation: Compile a separate program for each library.
+	    for i in $deplibs; do
+	      case $i in
+	      -l*)
+		func_stripname -l '' "$i"
+		name=$func_stripname_result
+		$opt_dry_run || $RM conftest
+		if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
+		  ldd_output=`ldd conftest`
+		  if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+		    case " $predeps $postdeps " in
+		    *" $i "*)
+		      func_append newdeplibs " $i"
+		      i=""
+		      ;;
+		    esac
+		  fi
+		  if test -n "$i" ; then
+		    libname=`eval "\\$ECHO \"$libname_spec\""`
+		    deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
+		    set dummy $deplib_matches; shift
+		    deplib_match=$1
+		    if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
+		      func_append newdeplibs " $i"
+		    else
+		      droppeddeps=yes
+		      echo
+		      $ECHO "*** Warning: dynamic linker does not accept needed library $i."
+		      echo "*** I have the capability to make that library automatically link in when"
+		      echo "*** you link to this library.  But I can only do this if you have a"
+		      echo "*** shared version of the library, which you do not appear to have"
+		      echo "*** because a test_compile did reveal that the linker did not use this one"
+		      echo "*** as a dynamic dependency that programs can get resolved with at runtime."
+		    fi
+		  fi
+		else
+		  droppeddeps=yes
+		  echo
+		  $ECHO "*** Warning!  Library $i is needed by this library but I was not able to"
+		  echo "*** make it link in!  You will probably need to install it or some"
+		  echo "*** library that it depends on before this library will be fully"
+		  echo "*** functional.  Installing it before continuing would be even better."
+		fi
+		;;
+	      *)
+		func_append newdeplibs " $i"
+		;;
+	      esac
+	    done
+	  fi
+	  ;;
+	file_magic*)
+	  set dummy $deplibs_check_method; shift
+	  file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+	  for a_deplib in $deplibs; do
+	    case $a_deplib in
+	    -l*)
+	      func_stripname -l '' "$a_deplib"
+	      name=$func_stripname_result
+	      if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+		case " $predeps $postdeps " in
+		*" $a_deplib "*)
+		  func_append newdeplibs " $a_deplib"
+		  a_deplib=""
+		  ;;
+		esac
+	      fi
+	      if test -n "$a_deplib" ; then
+		libname=`eval "\\$ECHO \"$libname_spec\""`
+		if test -n "$file_magic_glob"; then
+		  libnameglob=`func_echo_all "$libname" | $SED -e $file_magic_glob`
+		else
+		  libnameglob=$libname
+		fi
+		test "$want_nocaseglob" = yes && nocaseglob=`shopt -p nocaseglob`
+		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+		  if test "$want_nocaseglob" = yes; then
+		    shopt -s nocaseglob
+		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+		    $nocaseglob
+		  else
+		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+		  fi
+		  for potent_lib in $potential_libs; do
+		      # Follow soft links.
+		      if ls -lLd "$potent_lib" 2>/dev/null |
+			 $GREP " -> " >/dev/null; then
+			continue
+		      fi
+		      # The statement above tries to avoid entering an
+		      # endless loop below, in case of cyclic links.
+		      # We might still enter an endless loop, since a link
+		      # loop can be closed while we follow links,
+		      # but so what?
+		      potlib="$potent_lib"
+		      while test -h "$potlib" 2>/dev/null; do
+			potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
+			case $potliblink in
+			[\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
+			*) potlib=`$ECHO "$potlib" | $SED 's,[^/]*$,,'`"$potliblink";;
+			esac
+		      done
+		      if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
+			 $SED -e 10q |
+			 $EGREP "$file_magic_regex" > /dev/null; then
+			func_append newdeplibs " $a_deplib"
+			a_deplib=""
+			break 2
+		      fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib" ; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib" ; then
+		  $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a file magic. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	match_pattern*)
+	  set dummy $deplibs_check_method; shift
+	  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+	  for a_deplib in $deplibs; do
+	    case $a_deplib in
+	    -l*)
+	      func_stripname -l '' "$a_deplib"
+	      name=$func_stripname_result
+	      if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+		case " $predeps $postdeps " in
+		*" $a_deplib "*)
+		  func_append newdeplibs " $a_deplib"
+		  a_deplib=""
+		  ;;
+		esac
+	      fi
+	      if test -n "$a_deplib" ; then
+		libname=`eval "\\$ECHO \"$libname_spec\""`
+		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+		  for potent_lib in $potential_libs; do
+		    potlib="$potent_lib" # see symlink-check above in file_magic test
+		    if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
+		       $EGREP "$match_pattern_regex" > /dev/null; then
+		      func_append newdeplibs " $a_deplib"
+		      a_deplib=""
+		      break 2
+		    fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib" ; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib" ; then
+		  $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a regex pattern. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	none | unknown | *)
+	  newdeplibs=""
+	  tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
+	  if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+	    for i in $predeps $postdeps ; do
+	      # can't use Xsed below, because $i might contain '/'
+	      tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s,$i,,"`
+	    done
+	  fi
+	  case $tmp_deplibs in
+	  *[!\	\ ]*)
+	    echo
+	    if test "X$deplibs_check_method" = "Xnone"; then
+	      echo "*** Warning: inter-library dependencies are not supported in this platform."
+	    else
+	      echo "*** Warning: inter-library dependencies are not known to be supported."
+	    fi
+	    echo "*** All declared inter-library dependencies are being dropped."
+	    droppeddeps=yes
+	    ;;
+	  esac
+	  ;;
+	esac
+	versuffix=$versuffix_save
+	major=$major_save
+	release=$release_save
+	libname=$libname_save
+	name=$name_save
+
+	case $host in
+	*-*-rhapsody* | *-*-darwin1.[012])
+	  # On Rhapsody replace the C library with the System framework
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
+	  ;;
+	esac
+
+	if test "$droppeddeps" = yes; then
+	  if test "$module" = yes; then
+	    echo
+	    echo "*** Warning: libtool could not satisfy all declared inter-library"
+	    $ECHO "*** dependencies of module $libname.  Therefore, libtool will create"
+	    echo "*** a static module, that should work as long as the dlopening"
+	    echo "*** application is linked with the -dlopen flag."
+	    if test -z "$global_symbol_pipe"; then
+	      echo
+	      echo "*** However, this would only work if libtool was able to extract symbol"
+	      echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
+	      echo "*** not find such a program.  So, this module is probably useless."
+	      echo "*** \`nm' from GNU binutils and a full rebuild may help."
+	    fi
+	    if test "$build_old_libs" = no; then
+	      oldlibs="$output_objdir/$libname.$libext"
+	      build_libtool_libs=module
+	      build_old_libs=yes
+	    else
+	      build_libtool_libs=no
+	    fi
+	  else
+	    echo "*** The inter-library dependencies that have been dropped here will be"
+	    echo "*** automatically added whenever a program is linked with this library"
+	    echo "*** or is declared to -dlopen it."
+
+	    if test "$allow_undefined" = no; then
+	      echo
+	      echo "*** Since this library must not contain undefined symbols,"
+	      echo "*** because either the platform does not support them or"
+	      echo "*** it was explicitly requested with -no-undefined,"
+	      echo "*** libtool will only create a static version of it."
+	      if test "$build_old_libs" = no; then
+		oldlibs="$output_objdir/$libname.$libext"
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  fi
+	fi
+	# Done checking deplibs!
+	deplibs=$newdeplibs
+      fi
+      # Time to change all our "foo.ltframework" stuff back to "-framework foo"
+      case $host in
+	*-*-darwin*)
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  ;;
+      esac
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      deplibs="$new_libs"
+
+      # All the library-specific variables (install_libdir is set above).
+      library_names=
+      old_library=
+      dlname=
+
+      # Test again, we may have decided not to build it any more
+      if test "$build_libtool_libs" = yes; then
+	if test "$hardcode_into_libs" = yes; then
+	  # Hardcode the library paths
+	  hardcode_libdirs=
+	  dep_rpath=
+	  rpath="$finalize_rpath"
+	  test "$opt_mode" != relink && rpath="$compile_rpath$rpath"
+	  for libdir in $rpath; do
+	    if test -n "$hardcode_libdir_flag_spec"; then
+	      if test -n "$hardcode_libdir_separator"; then
+		func_replace_sysroot "$libdir"
+		libdir=$func_replace_sysroot_result
+		if test -z "$hardcode_libdirs"; then
+		  hardcode_libdirs="$libdir"
+		else
+		  # Just accumulate the unique libdirs.
+		  case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+		  *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		    ;;
+		  *)
+		    func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		    ;;
+		  esac
+		fi
+	      else
+		eval flag=\"$hardcode_libdir_flag_spec\"
+		func_append dep_rpath " $flag"
+	      fi
+	    elif test -n "$runpath_var"; then
+	      case "$perm_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_apped perm_rpath " $libdir" ;;
+	      esac
+	    fi
+	  done
+	  # Substitute the hardcoded libdirs into the rpath.
+	  if test -n "$hardcode_libdir_separator" &&
+	     test -n "$hardcode_libdirs"; then
+	    libdir="$hardcode_libdirs"
+	    if test -n "$hardcode_libdir_flag_spec_ld"; then
+	      eval dep_rpath=\"$hardcode_libdir_flag_spec_ld\"
+	    else
+	      eval dep_rpath=\"$hardcode_libdir_flag_spec\"
+	    fi
+	  fi
+	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
+	    # We should set the runpath_var.
+	    rpath=
+	    for dir in $perm_rpath; do
+	      func_append rpath "$dir:"
+	    done
+	    eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
+	  fi
+	  test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
+	fi
+
+	shlibpath="$finalize_shlibpath"
+	test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
+	if test -n "$shlibpath"; then
+	  eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
+	fi
+
+	# Get the real and link names of the library.
+	eval shared_ext=\"$shrext_cmds\"
+	eval library_names=\"$library_names_spec\"
+	set dummy $library_names
+	shift
+	realname="$1"
+	shift
+
+	if test -n "$soname_spec"; then
+	  eval soname=\"$soname_spec\"
+	else
+	  soname="$realname"
+	fi
+	if test -z "$dlname"; then
+	  dlname=$soname
+	fi
+
+	lib="$output_objdir/$realname"
+	linknames=
+	for link
+	do
+	  func_append linknames " $link"
+	done
+
+	# Use standard objects if they are pic
+	test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	test "X$libobjs" = "X " && libobjs=
+
+	delfiles=
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
+	  export_symbols="$output_objdir/$libname.uexp"
+	  func_append delfiles " $export_symbols"
+	fi
+
+	orig_export_symbols=
+	case $host_os in
+	cygwin* | mingw* | cegcc*)
+	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
+	    # exporting using user supplied symfile
+	    if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
+	      # and it's NOT already a .def file. Must figure out
+	      # which of the given symbols are data symbols and tag
+	      # them as such. So, trigger use of export_symbols_cmds.
+	      # export_symbols gets reassigned inside the "prepare
+	      # the list of exported symbols" if statement, so the
+	      # include_expsyms logic still works.
+	      orig_export_symbols="$export_symbols"
+	      export_symbols=
+	      always_export_symbols=yes
+	    fi
+	  fi
+	  ;;
+	esac
+
+	# Prepare the list of exported symbols
+	if test -z "$export_symbols"; then
+	  if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
+	    func_verbose "generating symbol list for \`$libname.la'"
+	    export_symbols="$output_objdir/$libname.exp"
+	    $opt_dry_run || $RM $export_symbols
+	    cmds=$export_symbols_cmds
+	    save_ifs="$IFS"; IFS='~'
+	    for cmd1 in $cmds; do
+	      IFS="$save_ifs"
+	      # Take the normal branch if the nm_file_list_spec branch
+	      # doesn't work or if tool conversion is not needed.
+	      case $nm_file_list_spec~$to_tool_file_cmd in
+		*~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
+		  try_normal_branch=yes
+		  eval cmd=\"$cmd1\"
+		  func_len " $cmd"
+		  len=$func_len_result
+		  ;;
+		*)
+		  try_normal_branch=no
+		  ;;
+	      esac
+	      if test "$try_normal_branch" = yes \
+		 && { test "$len" -lt "$max_cmd_len" \
+		      || test "$max_cmd_len" -le -1; }
+	      then
+		func_show_eval "$cmd" 'exit $?'
+		skipped_export=false
+	      elif test -n "$nm_file_list_spec"; then
+		func_basename "$output"
+		output_la=$func_basename_result
+		save_libobjs=$libobjs
+		save_output=$output
+		output=${output_objdir}/${output_la}.nm
+		func_to_tool_file "$output"
+		libobjs=$nm_file_list_spec$func_to_tool_file_result
+		func_append delfiles " $output"
+		func_verbose "creating $NM input file list: $output"
+		for obj in $save_libobjs; do
+		  func_to_tool_file "$obj"
+		  $ECHO "$func_to_tool_file_result"
+		done > "$output"
+		eval cmd=\"$cmd1\"
+		func_show_eval "$cmd" 'exit $?'
+		output=$save_output
+		libobjs=$save_libobjs
+		skipped_export=false
+	      else
+		# The command line is too long to execute in one step.
+		func_verbose "using reloadable object file for export list..."
+		skipped_export=:
+		# Break out early, otherwise skipped_export may be
+		# set to false by a later but shorter cmd.
+		break
+	      fi
+	    done
+	    IFS="$save_ifs"
+	    if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+	fi
+
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  tmp_export_symbols="$export_symbols"
+	  test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
+	  $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	fi
+
+	if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
+	  # The given exports_symbols file has to be filtered, so filter it.
+	  func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
+	  # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	  # 's' commands which not all seds can handle. GNU sed should be fine
+	  # though. Also, the filter scales superlinearly with the number of
+	  # global variables. join(1) would be nice here, but unfortunately
+	  # isn't a blessed tool.
+	  $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	  func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	  export_symbols=$output_objdir/$libname.def
+	  $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	fi
+
+	tmp_deplibs=
+	for test_deplib in $deplibs; do
+	  case " $convenience " in
+	  *" $test_deplib "*) ;;
+	  *)
+	    func_append tmp_deplibs " $test_deplib"
+	    ;;
+	  esac
+	done
+	deplibs="$tmp_deplibs"
+
+	if test -n "$convenience"; then
+	  if test -n "$whole_archive_flag_spec" &&
+	    test "$compiler_needs_object" = yes &&
+	    test -z "$libobjs"; then
+	    # extract the archives, so we have objects to list.
+	    # TODO: could optimize this to just extract one archive.
+	    whole_archive_flag_spec=
+	  fi
+	  if test -n "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  else
+	    gentop="$output_objdir/${outputname}x"
+	    func_append generated " $gentop"
+
+	    func_extract_archives $gentop $convenience
+	    func_append libobjs " $func_extract_archives_result"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	fi
+
+	if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
+	  eval flag=\"$thread_safe_flag_spec\"
+	  func_append linker_flags " $flag"
+	fi
+
+	# Make a backup of the uninstalled library when relinking
+	if test "$opt_mode" = relink; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
+	fi
+
+	# Do each of the archive commands.
+	if test "$module" = yes && test -n "$module_cmds" ; then
+	  if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	    eval test_cmds=\"$module_expsym_cmds\"
+	    cmds=$module_expsym_cmds
+	  else
+	    eval test_cmds=\"$module_cmds\"
+	    cmds=$module_cmds
+	  fi
+	else
+	  if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	    eval test_cmds=\"$archive_expsym_cmds\"
+	    cmds=$archive_expsym_cmds
+	  else
+	    eval test_cmds=\"$archive_cmds\"
+	    cmds=$archive_cmds
+	  fi
+	fi
+
+	if test "X$skipped_export" != "X:" &&
+	   func_len " $test_cmds" &&
+	   len=$func_len_result &&
+	   test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  :
+	else
+	  # The command line is too long to link in one step, link piecewise
+	  # or, if using GNU ld and skipped_export is not :, use a linker
+	  # script.
+
+	  # Save the value of $output and $libobjs because we want to
+	  # use them later.  If we have whole_archive_flag_spec, we
+	  # want to use save_libobjs as it was before
+	  # whole_archive_flag_spec was expanded, because we can't
+	  # assume the linker understands whole_archive_flag_spec.
+	  # This may have to be revisited, in case too many
+	  # convenience libraries get linked in and end up exceeding
+	  # the spec.
+	  if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	  fi
+	  save_output=$output
+	  func_basename "$output"
+	  output_la=$func_basename_result
+
+	  # Clear the reloadable object creation command queue and
+	  # initialize k to one.
+	  test_cmds=
+	  concat_cmds=
+	  objlist=
+	  last_robj=
+	  k=1
+
+	  if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
+	    output=${output_objdir}/${output_la}.lnkscript
+	    func_verbose "creating GNU ld script: $output"
+	    echo 'INPUT (' > $output
+	    for obj in $save_libobjs
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    echo ')' >> $output
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$func_to_tool_file_result
+	  elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
+	    output=${output_objdir}/${output_la}.lnk
+	    func_verbose "creating linker input file list: $output"
+	    : > $output
+	    set x $save_libobjs
+	    shift
+	    firstobj=
+	    if test "$compiler_needs_object" = yes; then
+	      firstobj="$1 "
+	      shift
+	    fi
+	    for obj
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
+	  else
+	    if test -n "$save_libobjs"; then
+	      func_verbose "creating reloadable object files..."
+	      output=$output_objdir/$output_la-${k}.$objext
+	      eval test_cmds=\"$reload_cmds\"
+	      func_len " $test_cmds"
+	      len0=$func_len_result
+	      len=$len0
+
+	      # Loop over the list of objects to be linked.
+	      for obj in $save_libobjs
+	      do
+		func_len " $obj"
+		func_arith $len + $func_len_result
+		len=$func_arith_result
+		if test "X$objlist" = X ||
+		   test "$len" -lt "$max_cmd_len"; then
+		  func_append objlist " $obj"
+		else
+		  # The command $test_cmds is almost too long, add a
+		  # command to the queue.
+		  if test "$k" -eq 1 ; then
+		    # The first file doesn't have a previous command to add.
+		    reload_objs=$objlist
+		    eval concat_cmds=\"$reload_cmds\"
+		  else
+		    # All subsequent reloadable object files will link in
+		    # the last one created.
+		    reload_objs="$objlist $last_robj"
+		    eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
+		  fi
+		  last_robj=$output_objdir/$output_la-${k}.$objext
+		  func_arith $k + 1
+		  k=$func_arith_result
+		  output=$output_objdir/$output_la-${k}.$objext
+		  objlist=" $obj"
+		  func_len " $last_robj"
+		  func_arith $len0 + $func_len_result
+		  len=$func_arith_result
+		fi
+	      done
+	      # Handle the remaining objects by creating one last
+	      # reloadable object file.  All subsequent reloadable object
+	      # files will link in the last one created.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      reload_objs="$objlist $last_robj"
+	      eval concat_cmds=\"\${concat_cmds}$reload_cmds\"
+	      if test -n "$last_robj"; then
+	        eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
+	      fi
+	      func_append delfiles " $output"
+
+	    else
+	      output=
+	    fi
+
+	    if ${skipped_export-false}; then
+	      func_verbose "generating symbol list for \`$libname.la'"
+	      export_symbols="$output_objdir/$libname.exp"
+	      $opt_dry_run || $RM $export_symbols
+	      libobjs=$output
+	      # Append the command to create the export file.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
+	      if test -n "$last_robj"; then
+		eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+	      fi
+	    fi
+
+	    test -n "$save_libobjs" &&
+	      func_verbose "creating a temporary reloadable object file: $output"
+
+	    # Loop through the commands generated above and execute them.
+	    save_ifs="$IFS"; IFS='~'
+	    for cmd in $concat_cmds; do
+	      IFS="$save_ifs"
+	      $opt_silent || {
+		  func_quote_for_expand "$cmd"
+		  eval "func_echo $func_quote_for_expand_result"
+	      }
+	      $opt_dry_run || eval "$cmd" || {
+		lt_exit=$?
+
+		# Restore the uninstalled library and exit
+		if test "$opt_mode" = relink; then
+		  ( cd "$output_objdir" && \
+		    $RM "${realname}T" && \
+		    $MV "${realname}U" "$realname" )
+		fi
+
+		exit $lt_exit
+	      }
+	    done
+	    IFS="$save_ifs"
+
+	    if test -n "$export_symbols_regex" && ${skipped_export-false}; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+
+          if ${skipped_export-false}; then
+	    if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	      tmp_export_symbols="$export_symbols"
+	      test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
+	      $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	    fi
+
+	    if test -n "$orig_export_symbols"; then
+	      # The given exports_symbols file has to be filtered, so filter it.
+	      func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
+	      # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	      # 's' commands which not all seds can handle. GNU sed should be fine
+	      # though. Also, the filter scales superlinearly with the number of
+	      # global variables. join(1) would be nice here, but unfortunately
+	      # isn't a blessed tool.
+	      $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	      func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	      export_symbols=$output_objdir/$libname.def
+	      $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	    fi
+	  fi
+
+	  libobjs=$output
+	  # Restore the value of output.
+	  output=$save_output
+
+	  if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	  # Expand the library linking commands again to reset the
+	  # value of $libobjs for piecewise linking.
+
+	  # Do each of the archive commands.
+	  if test "$module" = yes && test -n "$module_cmds" ; then
+	    if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	      cmds=$module_expsym_cmds
+	    else
+	      cmds=$module_cmds
+	    fi
+	  else
+	    if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	      cmds=$archive_expsym_cmds
+	    else
+	      cmds=$archive_cmds
+	    fi
+	  fi
+	fi
+
+	if test -n "$delfiles"; then
+	  # Append the command to remove temporary files to $cmds.
+	  eval cmds=\"\$cmds~\$RM $delfiles\"
+	fi
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop="$output_objdir/${outputname}x"
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append libobjs " $func_extract_archives_result"
+	  test "X$libobjs" = "X " && libobjs=
+	fi
+
+	save_ifs="$IFS"; IFS='~'
+	for cmd in $cmds; do
+	  IFS="$save_ifs"
+	  eval cmd=\"$cmd\"
+	  $opt_silent || {
+	    func_quote_for_expand "$cmd"
+	    eval "func_echo $func_quote_for_expand_result"
+	  }
+	  $opt_dry_run || eval "$cmd" || {
+	    lt_exit=$?
+
+	    # Restore the uninstalled library and exit
+	    if test "$opt_mode" = relink; then
+	      ( cd "$output_objdir" && \
+	        $RM "${realname}T" && \
+		$MV "${realname}U" "$realname" )
+	    fi
+
+	    exit $lt_exit
+	  }
+	done
+	IFS="$save_ifs"
+
+	# Restore the uninstalled library and exit
+	if test "$opt_mode" = relink; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
+
+	  if test -n "$convenience"; then
+	    if test -z "$whole_archive_flag_spec"; then
+	      func_show_eval '${RM}r "$gentop"'
+	    fi
+	  fi
+
+	  exit $EXIT_SUCCESS
+	fi
+
+	# Create links to the real library.
+	for linkname in $linknames; do
+	  if test "$realname" != "$linkname"; then
+	    func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
+	  fi
+	done
+
+	# If -module or -export-dynamic was specified, set the dlname.
+	if test "$module" = yes || test "$export_dynamic" = yes; then
+	  # On all known operating systems, these are identical.
+	  dlname="$soname"
+	fi
+      fi
+      ;;
+
+    obj)
+      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+	func_warning "\`-dlopen' is ignored for objects"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "\`-l' and \`-L' are ignored for objects" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "\`-rpath' is ignored for objects"
+
+      test -n "$xrpath" && \
+	func_warning "\`-R' is ignored for objects"
+
+      test -n "$vinfo" && \
+	func_warning "\`-version-info' is ignored for objects"
+
+      test -n "$release" && \
+	func_warning "\`-release' is ignored for objects"
+
+      case $output in
+      *.lo)
+	test -n "$objs$old_deplibs" && \
+	  func_fatal_error "cannot build library object \`$output' from non-libtool objects"
+
+	libobj=$output
+	func_lo2o "$libobj"
+	obj=$func_lo2o_result
+	;;
+      *)
+	libobj=
+	obj="$output"
+	;;
+      esac
+
+      # Delete the old objects.
+      $opt_dry_run || $RM $obj $libobj
+
+      # Objects from convenience libraries.  This assumes
+      # single-version convenience libraries.  Whenever we create
+      # different ones for PIC/non-PIC, this we'll have to duplicate
+      # the extraction.
+      reload_conv_objs=
+      gentop=
+      # reload_cmds runs $LD directly, so let us get rid of
+      # -Wl from whole_archive_flag_spec and hope we can get by with
+      # turning comma into space..
+      wl=
+
+      if test -n "$convenience"; then
+	if test -n "$whole_archive_flag_spec"; then
+	  eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
+	  reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
+	else
+	  gentop="$output_objdir/${obj}x"
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $convenience
+	  reload_conv_objs="$reload_objs $func_extract_archives_result"
+	fi
+      fi
+
+      # If we're not building shared, we need to use non_pic_objs
+      test "$build_libtool_libs" != yes && libobjs="$non_pic_objects"
+
+      # Create the old-style object.
+      reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test
+
+      output="$obj"
+      func_execute_cmds "$reload_cmds" 'exit $?'
+
+      # Exit if we aren't doing a library object file.
+      if test -z "$libobj"; then
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      if test "$build_libtool_libs" != yes; then
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	# Create an invalid libtool object if no PIC, so that we don't
+	# accidentally link it into a program.
+	# $show "echo timestamp > $libobj"
+	# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
+	exit $EXIT_SUCCESS
+      fi
+
+      if test -n "$pic_flag" || test "$pic_mode" != default; then
+	# Only do commands if we really have different PIC objects.
+	reload_objs="$libobjs $reload_conv_objs"
+	output="$libobj"
+	func_execute_cmds "$reload_cmds" 'exit $?'
+      fi
+
+      if test -n "$gentop"; then
+	func_show_eval '${RM}r "$gentop"'
+      fi
+
+      exit $EXIT_SUCCESS
+      ;;
+
+    prog)
+      case $host in
+	*cygwin*) func_stripname '' '.exe' "$output"
+	          output=$func_stripname_result.exe;;
+      esac
+      test -n "$vinfo" && \
+	func_warning "\`-version-info' is ignored for programs"
+
+      test -n "$release" && \
+	func_warning "\`-release' is ignored for programs"
+
+      test "$preload" = yes \
+        && test "$dlopen_support" = unknown \
+	&& test "$dlopen_self" = unknown \
+	&& test "$dlopen_self_static" = unknown && \
+	  func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."
+
+      case $host in
+      *-*-rhapsody* | *-*-darwin1.[012])
+	# On Rhapsody replace the C library is the System framework
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	;;
+      esac
+
+      case $host in
+      *-*-darwin*)
+	# Don't allow lazy linking, it breaks C++ global constructors
+	# But is supposedly fixed on 10.4 or later (yay!).
+	if test "$tagname" = CXX ; then
+	  case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
+	    10.[0123])
+	      func_append compile_command " ${wl}-bind_at_load"
+	      func_append finalize_command " ${wl}-bind_at_load"
+	    ;;
+	  esac
+	fi
+	# Time to change all our "foo.ltframework" stuff back to "-framework foo"
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	;;
+      esac
+
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $compile_deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $compile_deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      compile_deplibs="$new_libs"
+
+
+      func_append compile_command " $compile_deplibs"
+      func_append finalize_command " $finalize_deplibs"
+
+      if test -n "$rpath$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	for libdir in $rpath $xrpath; do
+	  # This is the magic to use -rpath.
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+      fi
+
+      # Now hardcode the library paths
+      rpath=
+      hardcode_libdirs=
+      for libdir in $compile_rpath $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs="$libdir"
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append perm_rpath " $libdir" ;;
+	  esac
+	fi
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$libdir:"*) ;;
+	  ::) dllsearchpath=$libdir;;
+	  *) func_append dllsearchpath ":$libdir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir="$hardcode_libdirs"
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      compile_rpath="$rpath"
+
+      rpath=
+      hardcode_libdirs=
+      for libdir in $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs="$libdir"
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$finalize_perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_perm_rpath " $libdir" ;;
+	  esac
+	fi
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir="$hardcode_libdirs"
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      finalize_rpath="$rpath"
+
+      if test -n "$libobjs" && test "$build_old_libs" = yes; then
+	# Transform all the library objects into standard objects.
+	compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+      fi
+
+      func_generate_dlsyms "$outputname" "@PROGRAM@" "no"
+
+      # template prelinking step
+      if test -n "$prelink_cmds"; then
+	func_execute_cmds "$prelink_cmds" 'exit $?'
+      fi
+
+      wrappers_required=yes
+      case $host in
+      *cegcc* | *mingw32ce*)
+        # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
+        wrappers_required=no
+        ;;
+      *cygwin* | *mingw* )
+        if test "$build_libtool_libs" != yes; then
+          wrappers_required=no
+        fi
+        ;;
+      *)
+        if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
+          wrappers_required=no
+        fi
+        ;;
+      esac
+      if test "$wrappers_required" = no; then
+	# Replace the output file specification.
+	compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	link_command="$compile_command$compile_rpath"
+
+	# We have no uninstalled library dependencies, so finalize right now.
+	exit_status=0
+	func_show_eval "$link_command" 'exit_status=$?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	# Delete the generated files.
+	if test -f "$output_objdir/${outputname}S.${objext}"; then
+	  func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
+	fi
+
+	exit $exit_status
+      fi
+
+      if test -n "$compile_shlibpath$finalize_shlibpath"; then
+	compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
+      fi
+      if test -n "$finalize_shlibpath"; then
+	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
+      fi
+
+      compile_var=
+      finalize_var=
+      if test -n "$runpath_var"; then
+	if test -n "$perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+	if test -n "$finalize_perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $finalize_perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+      fi
+
+      if test "$no_install" = yes; then
+	# We don't need to create a wrapper script.
+	link_command="$compile_var$compile_command$compile_rpath"
+	# Replace the output file specification.
+	link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	# Delete the old output file.
+	$opt_dry_run || $RM $output
+	# Link the executable and exit
+	func_show_eval "$link_command" 'exit $?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      if test "$hardcode_action" = relink; then
+	# Fast installation is not supported
+	link_command="$compile_var$compile_command$compile_rpath"
+	relink_command="$finalize_var$finalize_command$finalize_rpath"
+
+	func_warning "this platform does not like uninstalled shared libraries"
+	func_warning "\`$output' will be relinked during installation"
+      else
+	if test "$fast_install" != no; then
+	  link_command="$finalize_var$compile_command$finalize_rpath"
+	  if test "$fast_install" = yes; then
+	    relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
+	  else
+	    # fast_install is set to needless
+	    relink_command=
+	  fi
+	else
+	  link_command="$compile_var$compile_command$compile_rpath"
+	  relink_command="$finalize_var$finalize_command$finalize_rpath"
+	fi
+      fi
+
+      # Replace the output file specification.
+      link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
+
+      # Delete the old output files.
+      $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
+
+      func_show_eval "$link_command" 'exit $?'
+
+      if test -n "$postlink_cmds"; then
+	func_to_tool_file "$output_objdir/$outputname"
+	postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	func_execute_cmds "$postlink_cmds" 'exit $?'
+      fi
+
+      # Now create the wrapper script.
+      func_verbose "creating $output"
+
+      # Quote the relink command for shipping.
+      if test -n "$relink_command"; then
+	# Preserve any variables that may affect compiler behavior
+	for var in $variables_saved_for_relink; do
+	  if eval test -z \"\${$var+set}\"; then
+	    relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	  elif eval var_value=\$$var; test -z "$var_value"; then
+	    relink_command="$var=; export $var; $relink_command"
+	  else
+	    func_quote_for_eval "$var_value"
+	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	  fi
+	done
+	relink_command="(cd `pwd`; $relink_command)"
+	relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      fi
+
+      # Only actually do things if not in dry run mode.
+      $opt_dry_run || {
+	# win32 will think the script is a binary if it has
+	# a .exe suffix, so we strip it off here.
+	case $output in
+	  *.exe) func_stripname '' '.exe' "$output"
+	         output=$func_stripname_result ;;
+	esac
+	# test for cygwin because mv fails w/o .exe extensions
+	case $host in
+	  *cygwin*)
+	    exeext=.exe
+	    func_stripname '' '.exe' "$outputname"
+	    outputname=$func_stripname_result ;;
+	  *) exeext= ;;
+	esac
+	case $host in
+	  *cygwin* | *mingw* )
+	    func_dirname_and_basename "$output" "" "."
+	    output_name=$func_basename_result
+	    output_path=$func_dirname_result
+	    cwrappersource="$output_path/$objdir/lt-$output_name.c"
+	    cwrapper="$output_path/$output_name.exe"
+	    $RM $cwrappersource $cwrapper
+	    trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_cwrapperexe_src > $cwrappersource
+
+	    # The wrapper executable is built using the $host compiler,
+	    # because it contains $host paths and files. If cross-
+	    # compiling, it, like the target executable, must be
+	    # executed on the $host or under an emulation environment.
+	    $opt_dry_run || {
+	      $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
+	      $STRIP $cwrapper
+	    }
+
+	    # Now, create the wrapper script for func_source use:
+	    func_ltwrapper_scriptname $cwrapper
+	    $RM $func_ltwrapper_scriptname_result
+	    trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
+	    $opt_dry_run || {
+	      # note: this script will not be executed, so do not chmod.
+	      if test "x$build" = "x$host" ; then
+		$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
+	      else
+		func_emit_wrapper no > $func_ltwrapper_scriptname_result
+	      fi
+	    }
+	  ;;
+	  * )
+	    $RM $output
+	    trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_wrapper no > $output
+	    chmod +x $output
+	  ;;
+	esac
+      }
+      exit $EXIT_SUCCESS
+      ;;
+    esac
+
+    # See if we need to build an old-fashioned archive.
+    for oldlib in $oldlibs; do
+
+      if test "$build_libtool_libs" = convenience; then
+	oldobjs="$libobjs_save $symfileobj"
+	addlibs="$convenience"
+	build_libtool_libs=no
+      else
+	if test "$build_libtool_libs" = module; then
+	  oldobjs="$libobjs_save"
+	  build_libtool_libs=no
+	else
+	  oldobjs="$old_deplibs $non_pic_objects"
+	  if test "$preload" = yes && test -f "$symfileobj"; then
+	    func_append oldobjs " $symfileobj"
+	  fi
+	fi
+	addlibs="$old_convenience"
+      fi
+
+      if test -n "$addlibs"; then
+	gentop="$output_objdir/${outputname}x"
+	func_append generated " $gentop"
+
+	func_extract_archives $gentop $addlibs
+	func_append oldobjs " $func_extract_archives_result"
+      fi
+
+      # Do each command in the archive commands.
+      if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
+	cmds=$old_archive_from_new_cmds
+      else
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop="$output_objdir/${outputname}x"
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append oldobjs " $func_extract_archives_result"
+	fi
+
+	# POSIX demands no paths to be encoded in archives.  We have
+	# to avoid creating archives with duplicate basenames if we
+	# might have to extract them afterwards, e.g., when creating a
+	# static archive out of a convenience library, or when linking
+	# the entirety of a libtool archive into another (currently
+	# not supported by libtool).
+	if (for obj in $oldobjs
+	    do
+	      func_basename "$obj"
+	      $ECHO "$func_basename_result"
+	    done | sort | sort -uc >/dev/null 2>&1); then
+	  :
+	else
+	  echo "copying selected object files to avoid basename conflicts..."
+	  gentop="$output_objdir/${outputname}x"
+	  func_append generated " $gentop"
+	  func_mkdir_p "$gentop"
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  counter=1
+	  for obj in $save_oldobjs
+	  do
+	    func_basename "$obj"
+	    objbase="$func_basename_result"
+	    case " $oldobjs " in
+	    " ") oldobjs=$obj ;;
+	    *[\ /]"$objbase "*)
+	      while :; do
+		# Make sure we don't pick an alternate name that also
+		# overlaps.
+		newobj=lt$counter-$objbase
+		func_arith $counter + 1
+		counter=$func_arith_result
+		case " $oldobjs " in
+		*[\ /]"$newobj "*) ;;
+		*) if test ! -f "$gentop/$newobj"; then break; fi ;;
+		esac
+	      done
+	      func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
+	      func_append oldobjs " $gentop/$newobj"
+	      ;;
+	    *) func_append oldobjs " $obj" ;;
+	    esac
+	  done
+	fi
+	eval cmds=\"$old_archive_cmds\"
+
+	func_len " $cmds"
+	len=$func_len_result
+	if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  cmds=$old_archive_cmds
+	elif test -n "$archiver_list_spec"; then
+	  func_verbose "using command file archive linking..."
+	  for obj in $oldobjs
+	  do
+	    func_to_tool_file "$obj"
+	    $ECHO "$func_to_tool_file_result"
+	  done > $output_objdir/$libname.libcmd
+	  func_to_tool_file "$output_objdir/$libname.libcmd"
+	  oldobjs=" $archiver_list_spec$func_to_tool_file_result"
+	  cmds=$old_archive_cmds
+	else
+	  # the command line is too long to link in one step, link in parts
+	  func_verbose "using piecewise archive linking..."
+	  save_RANLIB=$RANLIB
+	  RANLIB=:
+	  objlist=
+	  concat_cmds=
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  # Is there a better way of finding the last object in the list?
+	  for obj in $save_oldobjs
+	  do
+	    last_oldobj=$obj
+	  done
+	  eval test_cmds=\"$old_archive_cmds\"
+	  func_len " $test_cmds"
+	  len0=$func_len_result
+	  len=$len0
+	  for obj in $save_oldobjs
+	  do
+	    func_len " $obj"
+	    func_arith $len + $func_len_result
+	    len=$func_arith_result
+	    func_append objlist " $obj"
+	    if test "$len" -lt "$max_cmd_len"; then
+	      :
+	    else
+	      # the above command should be used before it gets too long
+	      oldobjs=$objlist
+	      if test "$obj" = "$last_oldobj" ; then
+		RANLIB=$save_RANLIB
+	      fi
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
+	      objlist=
+	      len=$len0
+	    fi
+	  done
+	  RANLIB=$save_RANLIB
+	  oldobjs=$objlist
+	  if test "X$oldobjs" = "X" ; then
+	    eval cmds=\"\$concat_cmds\"
+	  else
+	    eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
+	  fi
+	fi
+      fi
+      func_execute_cmds "$cmds" 'exit $?'
+    done
+
+    test -n "$generated" && \
+      func_show_eval "${RM}r$generated"
+
+    # Now create the libtool archive.
+    case $output in
+    *.la)
+      old_library=
+      test "$build_old_libs" = yes && old_library="$libname.$libext"
+      func_verbose "creating $output"
+
+      # Preserve any variables that may affect compiler behavior
+      for var in $variables_saved_for_relink; do
+	if eval test -z \"\${$var+set}\"; then
+	  relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	elif eval var_value=\$$var; test -z "$var_value"; then
+	  relink_command="$var=; export $var; $relink_command"
+	else
+	  func_quote_for_eval "$var_value"
+	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	fi
+      done
+      # Quote the link command for shipping.
+      relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
+      relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      if test "$hardcode_automatic" = yes ; then
+	relink_command=
+      fi
+
+      # Only create the output if not a dry run.
+      $opt_dry_run || {
+	for installed in no yes; do
+	  if test "$installed" = yes; then
+	    if test -z "$install_libdir"; then
+	      break
+	    fi
+	    output="$output_objdir/$outputname"i
+	    # Replace all uninstalled libtool libraries with the installed ones
+	    newdependency_libs=
+	    for deplib in $dependency_libs; do
+	      case $deplib in
+	      *.la)
+		func_basename "$deplib"
+		name="$func_basename_result"
+		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+		test -z "$libdir" && \
+		  func_fatal_error "\`$deplib' is not a valid libtool archive"
+		func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      -L*)
+		func_stripname -L '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -L$func_replace_sysroot_result"
+		;;
+	      -R*)
+		func_stripname -R '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -R$func_replace_sysroot_result"
+		;;
+	      *) func_append newdependency_libs " $deplib" ;;
+	      esac
+	    done
+	    dependency_libs="$newdependency_libs"
+	    newdlfiles=
+
+	    for lib in $dlfiles; do
+	      case $lib in
+	      *.la)
+	        func_basename "$lib"
+		name="$func_basename_result"
+		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "\`$lib' is not a valid libtool archive"
+		func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      *) func_append newdlfiles " $lib" ;;
+	      esac
+	    done
+	    dlfiles="$newdlfiles"
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+	      *.la)
+		# Only pass preopened files to the pseudo-archive (for
+		# eventual linking with the app. that links it) if we
+		# didn't already link the preopened objects directly into
+		# the library:
+		func_basename "$lib"
+		name="$func_basename_result"
+		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "\`$lib' is not a valid libtool archive"
+		func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      esac
+	    done
+	    dlprefiles="$newdlprefiles"
+	  else
+	    newdlfiles=
+	    for lib in $dlfiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlfiles " $abs"
+	    done
+	    dlfiles="$newdlfiles"
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlprefiles " $abs"
+	    done
+	    dlprefiles="$newdlprefiles"
+	  fi
+	  $RM $output
+	  # place dlname in correct position for cygwin
+	  # In fact, it would be nice if we could use this code for all target
+	  # systems that can't hard-code library paths into their executables
+	  # and that have no shared library path variable independent of PATH,
+	  # but it turns out we can't easily determine that from inspecting
+	  # libtool variables, so we have to hard-code the OSs to which it
+	  # applies here; at the moment, that means platforms that use the PE
+	  # object format with DLL files.  See the long comment at the top of
+	  # tests/bindir.at for full details.
+	  tdlname=$dlname
+	  case $host,$output,$installed,$module,$dlname in
+	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
+	      # If a -bindir argument was supplied, place the dll there.
+	      if test "x$bindir" != x ;
+	      then
+		func_relative_path "$install_libdir" "$bindir"
+		tdlname=$func_relative_path_result$dlname
+	      else
+		# Otherwise fall back on heuristic.
+		tdlname=../bin/$dlname
+	      fi
+	      ;;
+	  esac
+	  $ECHO > $output "\
+# $outputname - a libtool library file
+# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# The name that we can dlopen(3).
+dlname='$tdlname'
+
+# Names of this library.
+library_names='$library_names'
+
+# The name of the static archive.
+old_library='$old_library'
+
+# Linker flags that can not go in dependency_libs.
+inherited_linker_flags='$new_inherited_linker_flags'
+
+# Libraries that this one depends upon.
+dependency_libs='$dependency_libs'
+
+# Names of additional weak libraries provided by this library
+weak_library_names='$weak_libs'
+
+# Version information for $libname.
+current=$current
+age=$age
+revision=$revision
+
+# Is this an already installed library?
+installed=$installed
+
+# Should we warn about portability when linking against -modules?
+shouldnotlink=$module
+
+# Files to dlopen/dlpreopen
+dlopen='$dlfiles'
+dlpreopen='$dlprefiles'
+
+# Directory that this library needs to be installed in:
+libdir='$install_libdir'"
+	  if test "$installed" = no && test "$need_relink" = yes; then
+	    $ECHO >> $output "\
+relink_command=\"$relink_command\""
+	  fi
+	done
+      }
+
+      # Do a symbolic link so that the libtool archive can be found in
+      # LD_LIBRARY_PATH before the program is installed.
+      func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
+      ;;
+    esac
+    exit $EXIT_SUCCESS
+}
+
+{ test "$opt_mode" = link || test "$opt_mode" = relink; } &&
+    func_mode_link ${1+"$@"}
+
+
+# func_mode_uninstall arg...
+func_mode_uninstall ()
+{
+    $opt_debug
+    RM="$nonopt"
+    files=
+    rmforce=
+    exit_status=0
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic="$magic"
+
+    for arg
+    do
+      case $arg in
+      -f) func_append RM " $arg"; rmforce=yes ;;
+      -*) func_append RM " $arg" ;;
+      *) func_append files " $arg" ;;
+      esac
+    done
+
+    test -z "$RM" && \
+      func_fatal_help "you must specify an RM program"
+
+    rmdirs=
+
+    for file in $files; do
+      func_dirname "$file" "" "."
+      dir="$func_dirname_result"
+      if test "X$dir" = X.; then
+	odir="$objdir"
+      else
+	odir="$dir/$objdir"
+      fi
+      func_basename "$file"
+      name="$func_basename_result"
+      test "$opt_mode" = uninstall && odir="$dir"
+
+      # Remember odir for removal later, being careful to avoid duplicates
+      if test "$opt_mode" = clean; then
+	case " $rmdirs " in
+	  *" $odir "*) ;;
+	  *) func_append rmdirs " $odir" ;;
+	esac
+      fi
+
+      # Don't error if the file doesn't exist and rm -f was used.
+      if { test -L "$file"; } >/dev/null 2>&1 ||
+	 { test -h "$file"; } >/dev/null 2>&1 ||
+	 test -f "$file"; then
+	:
+      elif test -d "$file"; then
+	exit_status=1
+	continue
+      elif test "$rmforce" = yes; then
+	continue
+      fi
+
+      rmfiles="$file"
+
+      case $name in
+      *.la)
+	# Possibly a libtool archive, so verify it.
+	if func_lalib_p "$file"; then
+	  func_source $dir/$name
+
+	  # Delete the libtool libraries and symlinks.
+	  for n in $library_names; do
+	    func_append rmfiles " $odir/$n"
+	  done
+	  test -n "$old_library" && func_append rmfiles " $odir/$old_library"
+
+	  case "$opt_mode" in
+	  clean)
+	    case " $library_names " in
+	    *" $dlname "*) ;;
+	    *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
+	    esac
+	    test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
+	    ;;
+	  uninstall)
+	    if test -n "$library_names"; then
+	      # Do each command in the postuninstall commands.
+	      func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
+	    fi
+
+	    if test -n "$old_library"; then
+	      # Do each command in the old_postuninstall commands.
+	      func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
+	    fi
+	    # FIXME: should reinstall the best remaining shared library.
+	    ;;
+	  esac
+	fi
+	;;
+
+      *.lo)
+	# Possibly a libtool object, so verify it.
+	if func_lalib_p "$file"; then
+
+	  # Read the .lo file
+	  func_source $dir/$name
+
+	  # Add PIC object to the list of files to remove.
+	  if test -n "$pic_object" &&
+	     test "$pic_object" != none; then
+	    func_append rmfiles " $dir/$pic_object"
+	  fi
+
+	  # Add non-PIC object to the list of files to remove.
+	  if test -n "$non_pic_object" &&
+	     test "$non_pic_object" != none; then
+	    func_append rmfiles " $dir/$non_pic_object"
+	  fi
+	fi
+	;;
+
+      *)
+	if test "$opt_mode" = clean ; then
+	  noexename=$name
+	  case $file in
+	  *.exe)
+	    func_stripname '' '.exe' "$file"
+	    file=$func_stripname_result
+	    func_stripname '' '.exe' "$name"
+	    noexename=$func_stripname_result
+	    # $file with .exe has already been added to rmfiles,
+	    # add $file without .exe
+	    func_append rmfiles " $file"
+	    ;;
+	  esac
+	  # Do a test to see if this is a libtool program.
+	  if func_ltwrapper_p "$file"; then
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      relink_command=
+	      func_source $func_ltwrapper_scriptname_result
+	      func_append rmfiles " $func_ltwrapper_scriptname_result"
+	    else
+	      relink_command=
+	      func_source $dir/$noexename
+	    fi
+
+	    # note $name still contains .exe if it was in $file originally
+	    # as does the version of $file that was added into $rmfiles
+	    func_append rmfiles " $odir/$name $odir/${name}S.${objext}"
+	    if test "$fast_install" = yes && test -n "$relink_command"; then
+	      func_append rmfiles " $odir/lt-$name"
+	    fi
+	    if test "X$noexename" != "X$name" ; then
+	      func_append rmfiles " $odir/lt-${noexename}.c"
+	    fi
+	  fi
+	fi
+	;;
+      esac
+      func_show_eval "$RM $rmfiles" 'exit_status=1'
+    done
+
+    # Try to remove the ${objdir}s in the directories where we deleted files
+    for dir in $rmdirs; do
+      if test -d "$dir"; then
+	func_show_eval "rmdir $dir >/dev/null 2>&1"
+      fi
+    done
+
+    exit $exit_status
+}
+
+{ test "$opt_mode" = uninstall || test "$opt_mode" = clean; } &&
+    func_mode_uninstall ${1+"$@"}
+
+test -z "$opt_mode" && {
+  help="$generic_help"
+  func_fatal_help "you must specify a MODE"
+}
+
+test -z "$exec_cmd" && \
+  func_fatal_help "invalid operation mode \`$opt_mode'"
+
+if test -n "$exec_cmd"; then
+  eval exec "$exec_cmd"
+  exit $EXIT_FAILURE
+fi
+
+exit $exit_status
+
+
+# The TAGs below are defined such that we never get into a situation
+# in which we disable both kinds of libraries.  Given conflicting
+# choices, we go for a static library, that is the most portable,
+# since we can't tell whether shared libraries were disabled because
+# the user asked for that or because the platform doesn't support
+# them.  This is particularly important on AIX, because we don't
+# support having both static and shared libraries enabled at the same
+# time on that platform, so we default to a shared-only configuration.
+# If a disable-shared tag is given, we'll fallback to a static-only
+# configuration.  But we'll never go from static-only to shared-only.
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
+build_libtool_libs=no
+build_old_libs=yes
+# ### END LIBTOOL TAG CONFIG: disable-shared
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-static
+build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
+# ### END LIBTOOL TAG CONFIG: disable-static
+
+# Local Variables:
+# mode:shell-script
+# sh-indentation:2
+# End:
+# vi:sw=2
+
diff --git a/8.31/macosx/config.h b/8.31/macosx/config.h
new file mode 100644
index 0000000..9a421b3
--- /dev/null
+++ b/8.31/macosx/config.h
@@ -0,0 +1,49 @@
+/* config.h for CMake builds */
+
+/* #undef HAVE_DIRENT_H */
+#define HAVE_SYS_STAT_H 1
+#define HAVE_SYS_TYPES_H 1
+/* #undef HAVE_UNISTD_H */
+#define HAVE_WINDOWS_H 1
+
+/* #undef HAVE_TYPE_TRAITS_H */
+/* #undef HAVE_BITS_TYPE_TRAITS_H */
+
+/* #undef HAVE_BCOPY */
+#define HAVE_MEMMOVE 1
+#define HAVE_STRERROR 1
+#define HAVE_STRTOLL 1
+/* #undef HAVE_STRTOQ */
+/* #define HAVE__STRTOI64 */
+
+#define PCRE_STATIC 1
+
+#define SUPPORT_PCRE8 1
+/* #undef SUPPORT_PCRE16 */
+/* #undef SUPPORT_JIT */
+#define SUPPORT_PCREGREP_JIT 1
+/* #undef SUPPORT_UTF */
+/* #undef SUPPORT_UCP */
+/* #undef EBCDIC */
+/* #undef BSR_ANYCRLF */
+/* #undef NO_RECURSE */
+
+#define HAVE_LONG_LONG 1
+#define HAVE_UNSIGNED_LONG_LONG 1
+
+/* #undef SUPPORT_LIBBZ2 */
+/* #undef SUPPORT_LIBZ */
+/* #undef SUPPORT_LIBEDIT */
+/* #undef SUPPORT_LIBREADLINE */
+
+#define NEWLINE			10
+#define POSIX_MALLOC_THRESHOLD	10
+#define LINK_SIZE		2
+#define MATCH_LIMIT		10000000
+#define MATCH_LIMIT_RECURSION	MATCH_LIMIT
+#define PCREGREP_BUFSIZE        20480
+
+#define MAX_NAME_SIZE	32
+#define MAX_NAME_COUNT	10000
+
+/* end config.h for CMake builds */
diff --git a/8.31/makevp.bat b/8.31/makevp.bat
new file mode 100644
index 0000000..5f79548
--- /dev/null
+++ b/8.31/makevp.bat
@@ -0,0 +1,66 @@
+:: AH 20-12-06 modified for new PCRE-7.0 and VP/BCC
+:: PH 19-03-07 renamed !compile.txt and !linklib.txt as makevp-compile.txt and
+::             makevp-linklib.txt
+:: PH 26-03-07 re-renamed !compile.txt and !linklib.txt as makevp-c.txt and
+::             makevp-l.txt
+:: PH 29-03-07 hopefully the final rename to makevp_c and makevp_l
+:: AH 27.08.08 updated for new PCRE-7.7
+::             required PCRE.H and CONFIG.H will be generated if not existing
+
+@echo off
+echo.
+echo Compiling PCRE with BORLAND C++ for VIRTUAL PASCAL
+echo.
+
+REM This file was contributed by Alexander Tokarev for building PCRE for use
+REM with Virtual Pascal. It has not been tested with the latest PCRE release.
+
+REM This file has been modified and extended to compile with newer PCRE releases
+REM by Stefan Weber (Angels Holocaust).
+
+REM CHANGE THIS FOR YOUR BORLAND C++ COMPILER PATH
+SET BORLAND=f:\bcc
+REM location of the TASM binaries, if compiling with the -B BCC switch
+SET TASM=f:\tasm
+
+SET PATH=%PATH%;%BORLAND%\bin;%TASM%\bin
+SET PCRE_VER=77
+SET COMPILE_DEFAULTS=-DHAVE_CONFIG_H -DPCRE_STATIC -I%BORLAND%\include
+
+del pcre%PCRE_VER%.lib >nul 2>nul
+
+:: sh configure
+
+:: check for needed header files
+if not exist pcre.h copy pcre.h.generic pcre.h
+if not exist config.h copy config.h.generic config.h
+
+bcc32 -DDFTABLES %COMPILE_DEFAULTS% -L%BORLAND%\lib dftables.c
+IF ERRORLEVEL 1 GOTO ERROR
+
+:: dftables > chartables.c
+dftables pcre_chartables.c
+
+REM compile and link the PCRE library into lib: option -B for ASM compile works too
+bcc32 -a4 -c -RT- -y- -v- -u- -R- -Q- -X -d -fp -ff -P- -O2 -Oc -Ov -3 -w-8004 -w-8064 -w-8065 -w-8012 -UDFTABLES -DVPCOMPAT %COMPILE_DEFAULTS% @makevp_c.txt
+IF ERRORLEVEL 1 GOTO ERROR
+
+tlib %BORLAND%\lib\cw32.lib *calloc *del *strncmp *memcpy *memmove *memset *memcmp *strlen
+IF ERRORLEVEL 1 GOTO ERROR
+tlib pcre%PCRE_VER%.lib @makevp_l.txt +calloc.obj +del.obj +strncmp.obj +memcpy.obj +memmove.obj +memset.obj +memcmp.obj +strlen.obj
+IF ERRORLEVEL 1 GOTO ERROR
+
+del *.obj *.tds *.bak >nul 2>nul
+
+echo ---
+echo Now the library should be complete. Please check all messages above.
+echo Don't care for warnings, it's OK.
+goto END
+
+:ERROR
+echo ---
+echo Error while compiling PCRE. Aborting...
+pause
+goto END
+
+:END
diff --git a/8.31/makevp_c.txt b/8.31/makevp_c.txt
new file mode 100644
index 0000000..f721511
--- /dev/null
+++ b/8.31/makevp_c.txt
@@ -0,0 +1,20 @@
+pcre_byte_order.c
+pcre_chartables.c
+pcre_compile.c
+pcre_config.c
+pcre_dfa_exec.c
+pcre_exec.c
+pcre_fullinfo.c
+pcre_get.c
+pcre_globals.c
+pcre_info.c
+pcre_maketables.c
+pcre_newline.c
+pcre_ord2utf8.c
+pcre_refcount.c
+pcre_study.c
+pcre_tables.c
+pcre_ucd.c
+pcre_valid_utf8.c
+pcre_version.c
+pcre_xclass.c
diff --git a/8.31/makevp_l.txt b/8.31/makevp_l.txt
new file mode 100644
index 0000000..4acb003
--- /dev/null
+++ b/8.31/makevp_l.txt
@@ -0,0 +1,20 @@
++pcre_byte_order.obj        &
++pcre_chartables.obj        &
++pcre_compile.obj           &
++pcre_config.obj	    &
++pcre_dfa_exec.obj          &
++pcre_exec.obj		    &
++pcre_fullinfo.obj          &
++pcre_get.obj		    &
++pcre_globals.obj           &
++pcre_info.obj		    &
++pcre_maketables.obj        &
++pcre_newline.obj           &
++pcre_ord2utf8.obj          &
++pcre_refcount.obj          &
++pcre_study.obj		    &
++pcre_tables.obj	    &
++pcre_ucd.obj               &
++pcre_valid_utf8.obj        &
++pcre_version.obj           &
++pcre_xclass.obj
diff --git a/8.31/missing b/8.31/missing
new file mode 100644
index 0000000..28055d2
--- /dev/null
+++ b/8.31/missing
@@ -0,0 +1,376 @@
+#! /bin/sh
+# Common stub for a few missing GNU programs while installing.
+
+scriptversion=2009-04-28.21; # UTC
+
+# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
+# 2008, 2009 Free Software Foundation, Inc.
+# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try \`$0 --help' for more information"
+  exit 1
+fi
+
+run=:
+sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
+sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
+
+# In the cases where this matters, `missing' is being run in the
+# srcdir already.
+if test -f configure.ac; then
+  configure_ac=configure.ac
+else
+  configure_ac=configure.in
+fi
+
+msg="missing on your system"
+
+case $1 in
+--run)
+  # Try to run requested program, and just exit if it succeeds.
+  run=
+  shift
+  "$@" && exit 0
+  # Exit code 63 means version mismatch.  This often happens
+  # when the user try to use an ancient version of a tool on
+  # a file that requires a minimum version.  In this case we
+  # we should proceed has if the program had been absent, or
+  # if --run hadn't been passed.
+  if test $? = 63; then
+    run=:
+    msg="probably too old"
+  fi
+  ;;
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+error status if there is no known handling for PROGRAM.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+  --run           try to run the given command, and emulate it if it fails
+
+Supported PROGRAM values:
+  aclocal      touch file \`aclocal.m4'
+  autoconf     touch file \`configure'
+  autoheader   touch file \`config.h.in'
+  autom4te     touch the output file, or create a stub one
+  automake     touch all \`Makefile.in' files
+  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
+  flex         create \`lex.yy.c', if possible, from existing .c
+  help2man     touch the output file
+  lex          create \`lex.yy.c', if possible, from existing .c
+  makeinfo     touch the output file
+  tar          try tar, gnutar, gtar, then tar without non-portable flags
+  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
+
+Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and
+\`g' are ignored when checking the name.
+
+Send bug reports to <bug-automake@gnu.org>."
+    exit $?
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing $scriptversion (GNU Automake)"
+    exit $?
+    ;;
+
+  -*)
+    echo 1>&2 "$0: Unknown \`$1' option"
+    echo 1>&2 "Try \`$0 --help' for more information"
+    exit 1
+    ;;
+
+esac
+
+# normalize program name to check for.
+program=`echo "$1" | sed '
+  s/^gnu-//; t
+  s/^gnu//; t
+  s/^g//; t'`
+
+# Now exit if we have it, but it failed.  Also exit now if we
+# don't have it and --version was passed (most likely to detect
+# the program).  This is about non-GNU programs, so use $1 not
+# $program.
+case $1 in
+  lex*|yacc*)
+    # Not GNU programs, they don't have --version.
+    ;;
+
+  tar*)
+    if test -n "$run"; then
+       echo 1>&2 "ERROR: \`tar' requires --run"
+       exit 1
+    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
+       exit 1
+    fi
+    ;;
+
+  *)
+    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+       # We have it, but it failed.
+       exit 1
+    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
+       # Could not run --version or --help.  This is probably someone
+       # running `$TOOL --version' or `$TOOL --help' to check whether
+       # $TOOL exists and not knowing $TOOL uses missing.
+       exit 1
+    fi
+    ;;
+esac
+
+# If it does not exist, or fails to run (possibly an outdated version),
+# try to emulate it.
+case $program in
+  aclocal*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
+         to install the \`Automake' and \`Perl' packages.  Grab them from
+         any GNU archive site."
+    touch aclocal.m4
+    ;;
+
+  autoconf*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified \`${configure_ac}'.  You might want to install the
+         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
+         archive site."
+    touch configure
+    ;;
+
+  autoheader*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
+         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
+         from any GNU archive site."
+    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
+    test -z "$files" && files="config.h"
+    touch_files=
+    for f in $files; do
+      case $f in
+      *:*) touch_files="$touch_files "`echo "$f" |
+				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
+      *) touch_files="$touch_files $f.in";;
+      esac
+    done
+    touch $touch_files
+    ;;
+
+  automake*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
+         You might want to install the \`Automake' and \`Perl' packages.
+         Grab them from any GNU archive site."
+    find . -type f -name Makefile.am -print |
+	   sed 's/\.am$/.in/' |
+	   while read f; do touch "$f"; done
+    ;;
+
+  autom4te*)
+    echo 1>&2 "\
+WARNING: \`$1' is needed, but is $msg.
+         You might have modified some files without having the
+         proper tools for further handling them.
+         You can get \`$1' as part of \`Autoconf' from any GNU
+         archive site."
+
+    file=`echo "$*" | sed -n "$sed_output"`
+    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+    if test -f "$file"; then
+	touch $file
+    else
+	test -z "$file" || exec >$file
+	echo "#! /bin/sh"
+	echo "# Created by GNU Automake missing as a replacement of"
+	echo "#  $ $@"
+	echo "exit 0"
+	chmod +x $file
+	exit 1
+    fi
+    ;;
+
+  bison*|yacc*)
+    echo 1>&2 "\
+WARNING: \`$1' $msg.  You should only need it if
+         you modified a \`.y' file.  You may need the \`Bison' package
+         in order for those modifications to take effect.  You can get
+         \`Bison' from any GNU archive site."
+    rm -f y.tab.c y.tab.h
+    if test $# -ne 1; then
+        eval LASTARG="\${$#}"
+	case $LASTARG in
+	*.y)
+	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
+	    if test -f "$SRCFILE"; then
+	         cp "$SRCFILE" y.tab.c
+	    fi
+	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
+	    if test -f "$SRCFILE"; then
+	         cp "$SRCFILE" y.tab.h
+	    fi
+	  ;;
+	esac
+    fi
+    if test ! -f y.tab.h; then
+	echo >y.tab.h
+    fi
+    if test ! -f y.tab.c; then
+	echo 'main() { return 0; }' >y.tab.c
+    fi
+    ;;
+
+  lex*|flex*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified a \`.l' file.  You may need the \`Flex' package
+         in order for those modifications to take effect.  You can get
+         \`Flex' from any GNU archive site."
+    rm -f lex.yy.c
+    if test $# -ne 1; then
+        eval LASTARG="\${$#}"
+	case $LASTARG in
+	*.l)
+	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
+	    if test -f "$SRCFILE"; then
+	         cp "$SRCFILE" lex.yy.c
+	    fi
+	  ;;
+	esac
+    fi
+    if test ! -f lex.yy.c; then
+	echo 'main() { return 0; }' >lex.yy.c
+    fi
+    ;;
+
+  help2man*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+	 you modified a dependency of a manual page.  You may need the
+	 \`Help2man' package in order for those modifications to take
+	 effect.  You can get \`Help2man' from any GNU archive site."
+
+    file=`echo "$*" | sed -n "$sed_output"`
+    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+    if test -f "$file"; then
+	touch $file
+    else
+	test -z "$file" || exec >$file
+	echo ".ab help2man is required to generate this page"
+	exit $?
+    fi
+    ;;
+
+  makeinfo*)
+    echo 1>&2 "\
+WARNING: \`$1' is $msg.  You should only need it if
+         you modified a \`.texi' or \`.texinfo' file, or any other file
+         indirectly affecting the aspect of the manual.  The spurious
+         call might also be the consequence of using a buggy \`make' (AIX,
+         DU, IRIX).  You might want to install the \`Texinfo' package or
+         the \`GNU make' package.  Grab either from any GNU archive site."
+    # The file to touch is that specified with -o ...
+    file=`echo "$*" | sed -n "$sed_output"`
+    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+    if test -z "$file"; then
+      # ... or it is the one specified with @setfilename ...
+      infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
+      file=`sed -n '
+	/^@setfilename/{
+	  s/.* \([^ ]*\) *$/\1/
+	  p
+	  q
+	}' $infile`
+      # ... or it is derived from the source name (dir/f.texi becomes f.info)
+      test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
+    fi
+    # If the file does not exist, the user really needs makeinfo;
+    # let's fail without touching anything.
+    test -f $file || exit 1
+    touch $file
+    ;;
+
+  tar*)
+    shift
+
+    # We have already tried tar in the generic part.
+    # Look for gnutar/gtar before invocation to avoid ugly error
+    # messages.
+    if (gnutar --version > /dev/null 2>&1); then
+       gnutar "$@" && exit 0
+    fi
+    if (gtar --version > /dev/null 2>&1); then
+       gtar "$@" && exit 0
+    fi
+    firstarg="$1"
+    if shift; then
+	case $firstarg in
+	*o*)
+	    firstarg=`echo "$firstarg" | sed s/o//`
+	    tar "$firstarg" "$@" && exit 0
+	    ;;
+	esac
+	case $firstarg in
+	*h*)
+	    firstarg=`echo "$firstarg" | sed s/h//`
+	    tar "$firstarg" "$@" && exit 0
+	    ;;
+	esac
+    fi
+
+    echo 1>&2 "\
+WARNING: I can't seem to be able to run \`tar' with the given arguments.
+         You may want to install GNU tar or Free paxutils, or check the
+         command line arguments."
+    exit 1
+    ;;
+
+  *)
+    echo 1>&2 "\
+WARNING: \`$1' is needed, and is $msg.
+         You might have modified some files without having the
+         proper tools for further handling them.  Check the \`README' file,
+         it often tells you about the needed prerequisites for installing
+         this package.  You may also peek at any GNU archive site, in case
+         some other package would contain this missing \`$1' program."
+    exit 1
+    ;;
+esac
+
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/8.31/pcre-config.in b/8.31/pcre-config.in
new file mode 100644
index 0000000..595e5d1
--- /dev/null
+++ b/8.31/pcre-config.in
@@ -0,0 +1,122 @@
+#!/bin/sh
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+exec_prefix_set=no
+
+cflags="[--cflags]"
+
+if test @enable_cpp@ = yes ; then
+  libs="[--libs-cpp]"
+else
+  libs=
+fi
+
+if test @enable_pcre16@ = yes ; then
+  libs="[--libs16] $libs"
+fi
+
+if test @enable_pcre8@ = yes ; then
+  libs="[--libs] [--libs-posix] $libs"
+  cflags="$cflags [--cflags-posix]"
+fi
+
+usage="Usage: pcre-config [--prefix] [--exec-prefix] [--version] $libs $cflags"
+
+if test $# -eq 0; then
+      echo "${usage}" 1>&2
+      exit 1
+fi
+
+libR=
+case `uname -s` in
+  *SunOS*)
+  libR=" -R@libdir@"
+  ;;
+  *BSD*)
+  libR=" -Wl,-R@libdir@"
+  ;;
+esac
+
+libS=
+if test @libdir@ != /usr/lib ; then
+  libS=-L@libdir@
+fi
+
+while test $# -gt 0; do
+  case "$1" in
+  -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+  *) optarg= ;;
+  esac
+
+  case $1 in
+    --prefix=*)
+      prefix=$optarg
+      if test $exec_prefix_set = no ; then
+        exec_prefix=$optarg
+      fi
+      ;;
+    --prefix)
+      echo $prefix
+      ;;
+    --exec-prefix=*)
+      exec_prefix=$optarg
+      exec_prefix_set=yes
+      ;;
+    --exec-prefix)
+      echo $exec_prefix
+      ;;
+    --version)
+      echo @PACKAGE_VERSION@
+      ;;
+    --cflags)
+      if test @includedir@ != /usr/include ; then
+        includes=-I@includedir@
+      fi
+      echo $includes @PCRE_STATIC_CFLAG@
+      ;;
+    --cflags-posix)
+      if test @enable_pcre8@ = yes ; then
+        if test @includedir@ != /usr/include ; then
+          includes=-I@includedir@
+        fi
+        echo $includes @PCRE_STATIC_CFLAG@
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs-posix)
+      if test @enable_pcre8@ = yes ; then
+        echo $libS$libR -lpcreposix -lpcre
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs)
+      if test @enable_pcre8@ = yes ; then
+        echo $libS$libR -lpcre
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs16)
+      if test @enable_pcre16@ = yes ; then
+        echo $libS$libR -lpcre16
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    --libs-cpp)
+      if test @enable_cpp@ = yes ; then
+        echo $libS$libR -lpcrecpp -lpcre
+      else
+        echo "${usage}" 1>&2
+      fi
+      ;;
+    *)
+      echo "${usage}" 1>&2
+      exit 1
+      ;;
+  esac
+  shift
+done
diff --git a/8.31/pcre.h b/8.31/pcre.h
new file mode 100644
index 0000000..b71ead3
--- /dev/null
+++ b/8.31/pcre.h
@@ -0,0 +1,507 @@
+/*************************************************
+*       Perl-Compatible Regular Expressions      *
+*************************************************/
+
+/* This is the public header file for the PCRE library, to be #included by
+applications that call the PCRE functions.
+
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+#ifndef _PCRE_H
+#define _PCRE_H
+
+/* The current PCRE version information. */
+
+#define PCRE_MAJOR          8
+#define PCRE_MINOR          31
+#define PCRE_PRERELEASE     
+#define PCRE_DATE           2012-07-06
+
+/* When an application links to a PCRE DLL in Windows, the symbols that are
+imported have to be identified as such. When building PCRE, the appropriate
+export setting is defined in pcre_internal.h, which includes this file. So we
+don't change existing definitions of PCRE_EXP_DECL and PCRECPP_EXP_DECL. */
+
+#if defined(_WIN32) && !defined(PCRE_STATIC)
+#  ifndef PCRE_EXP_DECL
+#    define PCRE_EXP_DECL  extern __declspec(dllimport)
+#  endif
+#  ifdef __cplusplus
+#    ifndef PCRECPP_EXP_DECL
+#      define PCRECPP_EXP_DECL  extern __declspec(dllimport)
+#    endif
+#    ifndef PCRECPP_EXP_DEFN
+#      define PCRECPP_EXP_DEFN  __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+/* By default, we use the standard "extern" declarations. */
+
+#ifndef PCRE_EXP_DECL
+#  ifdef __cplusplus
+#    define PCRE_EXP_DECL  extern "C"
+#  else
+#    define PCRE_EXP_DECL  extern
+#  endif
+#endif
+
+#ifdef __cplusplus
+#  ifndef PCRECPP_EXP_DECL
+#    define PCRECPP_EXP_DECL  extern
+#  endif
+#  ifndef PCRECPP_EXP_DEFN
+#    define PCRECPP_EXP_DEFN
+#  endif
+#endif
+
+/* Have to include stdlib.h in order to ensure that size_t is defined;
+it is needed here for malloc. */
+
+#include <stdlib.h>
+
+/* Allow for C++ users */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Options. Some are compile-time only, some are run-time only, and some are
+both, so we keep them all distinct. However, almost all the bits in the options
+word are now used. In the long run, we may have to re-use some of the
+compile-time only bits for runtime options, or vice versa. In the comments
+below, "compile", "exec", and "DFA exec" mean that the option is permitted to
+be set for those functions; "used in" means that an option may be set only for
+compile, but is subsequently referenced in exec and/or DFA exec. Any of the
+compile-time options may be inspected during studying (and therefore JIT
+compiling). */
+
+#define PCRE_CASELESS           0x00000001  /* Compile */
+#define PCRE_MULTILINE          0x00000002  /* Compile */
+#define PCRE_DOTALL             0x00000004  /* Compile */
+#define PCRE_EXTENDED           0x00000008  /* Compile */
+#define PCRE_ANCHORED           0x00000010  /* Compile, exec, DFA exec */
+#define PCRE_DOLLAR_ENDONLY     0x00000020  /* Compile, used in exec, DFA exec */
+#define PCRE_EXTRA              0x00000040  /* Compile */
+#define PCRE_NOTBOL             0x00000080  /* Exec, DFA exec */
+#define PCRE_NOTEOL             0x00000100  /* Exec, DFA exec */
+#define PCRE_UNGREEDY           0x00000200  /* Compile */
+#define PCRE_NOTEMPTY           0x00000400  /* Exec, DFA exec */
+/* The next two are also used in exec and DFA exec */
+#define PCRE_UTF8               0x00000800  /* Compile (same as PCRE_UTF16) */
+#define PCRE_UTF16              0x00000800  /* Compile (same as PCRE_UTF8) */
+#define PCRE_NO_AUTO_CAPTURE    0x00001000  /* Compile */
+/* The next two are also used in exec and DFA exec */
+#define PCRE_NO_UTF8_CHECK      0x00002000  /* Compile (same as PCRE_NO_UTF16_CHECK) */
+#define PCRE_NO_UTF16_CHECK     0x00002000  /* Compile (same as PCRE_NO_UTF8_CHECK) */
+#define PCRE_AUTO_CALLOUT       0x00004000  /* Compile */
+#define PCRE_PARTIAL_SOFT       0x00008000  /* Exec, DFA exec */
+#define PCRE_PARTIAL            0x00008000  /* Backwards compatible synonym */
+#define PCRE_DFA_SHORTEST       0x00010000  /* DFA exec */
+#define PCRE_DFA_RESTART        0x00020000  /* DFA exec */
+#define PCRE_FIRSTLINE          0x00040000  /* Compile, used in exec, DFA exec */
+#define PCRE_DUPNAMES           0x00080000  /* Compile */
+#define PCRE_NEWLINE_CR         0x00100000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_LF         0x00200000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_CRLF       0x00300000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_ANY        0x00400000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_ANYCRLF    0x00500000  /* Compile, exec, DFA exec */
+#define PCRE_BSR_ANYCRLF        0x00800000  /* Compile, exec, DFA exec */
+#define PCRE_BSR_UNICODE        0x01000000  /* Compile, exec, DFA exec */
+#define PCRE_JAVASCRIPT_COMPAT  0x02000000  /* Compile, used in exec */
+#define PCRE_NO_START_OPTIMIZE  0x04000000  /* Compile, exec, DFA exec */
+#define PCRE_NO_START_OPTIMISE  0x04000000  /* Synonym */
+#define PCRE_PARTIAL_HARD       0x08000000  /* Exec, DFA exec */
+#define PCRE_NOTEMPTY_ATSTART   0x10000000  /* Exec, DFA exec */
+#define PCRE_UCP                0x20000000  /* Compile, used in exec, DFA exec */
+
+/* Exec-time and get/set-time error codes */
+
+#define PCRE_ERROR_NOMATCH          (-1)
+#define PCRE_ERROR_NULL             (-2)
+#define PCRE_ERROR_BADOPTION        (-3)
+#define PCRE_ERROR_BADMAGIC         (-4)
+#define PCRE_ERROR_UNKNOWN_OPCODE   (-5)
+#define PCRE_ERROR_UNKNOWN_NODE     (-5)  /* For backward compatibility */
+#define PCRE_ERROR_NOMEMORY         (-6)
+#define PCRE_ERROR_NOSUBSTRING      (-7)
+#define PCRE_ERROR_MATCHLIMIT       (-8)
+#define PCRE_ERROR_CALLOUT          (-9)  /* Never used by PCRE itself */
+#define PCRE_ERROR_BADUTF8         (-10)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF16        (-10)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF8_OFFSET  (-11)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF16_OFFSET (-11)  /* Same for 8/16 */
+#define PCRE_ERROR_PARTIAL         (-12)
+#define PCRE_ERROR_BADPARTIAL      (-13)
+#define PCRE_ERROR_INTERNAL        (-14)
+#define PCRE_ERROR_BADCOUNT        (-15)
+#define PCRE_ERROR_DFA_UITEM       (-16)
+#define PCRE_ERROR_DFA_UCOND       (-17)
+#define PCRE_ERROR_DFA_UMLIMIT     (-18)
+#define PCRE_ERROR_DFA_WSSIZE      (-19)
+#define PCRE_ERROR_DFA_RECURSE     (-20)
+#define PCRE_ERROR_RECURSIONLIMIT  (-21)
+#define PCRE_ERROR_NULLWSLIMIT     (-22)  /* No longer actually used */
+#define PCRE_ERROR_BADNEWLINE      (-23)
+#define PCRE_ERROR_BADOFFSET       (-24)
+#define PCRE_ERROR_SHORTUTF8       (-25)
+#define PCRE_ERROR_SHORTUTF16      (-25)  /* Same for 8/16 */
+#define PCRE_ERROR_RECURSELOOP     (-26)
+#define PCRE_ERROR_JIT_STACKLIMIT  (-27)
+#define PCRE_ERROR_BADMODE         (-28)
+#define PCRE_ERROR_BADENDIANNESS   (-29)
+#define PCRE_ERROR_DFA_BADRESTART  (-30)
+
+/* Specific error codes for UTF-8 validity checks */
+
+#define PCRE_UTF8_ERR0               0
+#define PCRE_UTF8_ERR1               1
+#define PCRE_UTF8_ERR2               2
+#define PCRE_UTF8_ERR3               3
+#define PCRE_UTF8_ERR4               4
+#define PCRE_UTF8_ERR5               5
+#define PCRE_UTF8_ERR6               6
+#define PCRE_UTF8_ERR7               7
+#define PCRE_UTF8_ERR8               8
+#define PCRE_UTF8_ERR9               9
+#define PCRE_UTF8_ERR10             10
+#define PCRE_UTF8_ERR11             11
+#define PCRE_UTF8_ERR12             12
+#define PCRE_UTF8_ERR13             13
+#define PCRE_UTF8_ERR14             14
+#define PCRE_UTF8_ERR15             15
+#define PCRE_UTF8_ERR16             16
+#define PCRE_UTF8_ERR17             17
+#define PCRE_UTF8_ERR18             18
+#define PCRE_UTF8_ERR19             19
+#define PCRE_UTF8_ERR20             20
+#define PCRE_UTF8_ERR21             21
+
+/* Specific error codes for UTF-16 validity checks */
+
+#define PCRE_UTF16_ERR0              0
+#define PCRE_UTF16_ERR1              1
+#define PCRE_UTF16_ERR2              2
+#define PCRE_UTF16_ERR3              3
+#define PCRE_UTF16_ERR4              4
+
+/* Request types for pcre_fullinfo() */
+
+#define PCRE_INFO_OPTIONS            0
+#define PCRE_INFO_SIZE               1
+#define PCRE_INFO_CAPTURECOUNT       2
+#define PCRE_INFO_BACKREFMAX         3
+#define PCRE_INFO_FIRSTBYTE          4
+#define PCRE_INFO_FIRSTCHAR          4  /* For backwards compatibility */
+#define PCRE_INFO_FIRSTTABLE         5
+#define PCRE_INFO_LASTLITERAL        6
+#define PCRE_INFO_NAMEENTRYSIZE      7
+#define PCRE_INFO_NAMECOUNT          8
+#define PCRE_INFO_NAMETABLE          9
+#define PCRE_INFO_STUDYSIZE         10
+#define PCRE_INFO_DEFAULT_TABLES    11
+#define PCRE_INFO_OKPARTIAL         12
+#define PCRE_INFO_JCHANGED          13
+#define PCRE_INFO_HASCRORLF         14
+#define PCRE_INFO_MINLENGTH         15
+#define PCRE_INFO_JIT               16
+#define PCRE_INFO_JITSIZE           17
+#define PCRE_INFO_MAXLOOKBEHIND     18
+
+/* Request types for pcre_config(). Do not re-arrange, in order to remain
+compatible. */
+
+#define PCRE_CONFIG_UTF8                    0
+#define PCRE_CONFIG_NEWLINE                 1
+#define PCRE_CONFIG_LINK_SIZE               2
+#define PCRE_CONFIG_POSIX_MALLOC_THRESHOLD  3
+#define PCRE_CONFIG_MATCH_LIMIT             4
+#define PCRE_CONFIG_STACKRECURSE            5
+#define PCRE_CONFIG_UNICODE_PROPERTIES      6
+#define PCRE_CONFIG_MATCH_LIMIT_RECURSION   7
+#define PCRE_CONFIG_BSR                     8
+#define PCRE_CONFIG_JIT                     9
+#define PCRE_CONFIG_UTF16                  10
+#define PCRE_CONFIG_JITTARGET              11
+
+/* Request types for pcre_study(). Do not re-arrange, in order to remain
+compatible. */
+
+#define PCRE_STUDY_JIT_COMPILE                0x0001
+#define PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE   0x0002
+#define PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE   0x0004
+
+/* Bit flags for the pcre[16]_extra structure. Do not re-arrange or redefine
+these bits, just add new ones on the end, in order to remain compatible. */
+
+#define PCRE_EXTRA_STUDY_DATA             0x0001
+#define PCRE_EXTRA_MATCH_LIMIT            0x0002
+#define PCRE_EXTRA_CALLOUT_DATA           0x0004
+#define PCRE_EXTRA_TABLES                 0x0008
+#define PCRE_EXTRA_MATCH_LIMIT_RECURSION  0x0010
+#define PCRE_EXTRA_MARK                   0x0020
+#define PCRE_EXTRA_EXECUTABLE_JIT         0x0040
+
+/* Types */
+
+struct real_pcre;                 /* declaration; the definition is private  */
+typedef struct real_pcre pcre;
+
+struct real_pcre16;               /* declaration; the definition is private  */
+typedef struct real_pcre16 pcre16;
+
+struct real_pcre_jit_stack;       /* declaration; the definition is private  */
+typedef struct real_pcre_jit_stack pcre_jit_stack;
+
+struct real_pcre16_jit_stack;     /* declaration; the definition is private  */
+typedef struct real_pcre16_jit_stack pcre16_jit_stack;
+
+/* If PCRE is compiled with 16 bit character support, PCRE_UCHAR16 must contain
+a 16 bit wide signed data type. Otherwise it can be a dummy data type since
+pcre16 functions are not implemented. There is a check for this in pcre_internal.h. */
+#ifndef PCRE_UCHAR16
+#define PCRE_UCHAR16 unsigned short
+#endif
+
+#ifndef PCRE_SPTR16
+#define PCRE_SPTR16 const PCRE_UCHAR16 *
+#endif
+
+/* When PCRE is compiled as a C++ library, the subject pointer type can be
+replaced with a custom type. For conventional use, the public interface is a
+const char *. */
+
+#ifndef PCRE_SPTR
+#define PCRE_SPTR const char *
+#endif
+
+/* The structure for passing additional data to pcre_exec(). This is defined in
+such as way as to be extensible. Always add new fields at the end, in order to
+remain compatible. */
+
+typedef struct pcre_extra {
+  unsigned long int flags;        /* Bits for which fields are set */
+  void *study_data;               /* Opaque data from pcre_study() */
+  unsigned long int match_limit;  /* Maximum number of calls to match() */
+  void *callout_data;             /* Data passed back in callouts */
+  const unsigned char *tables;    /* Pointer to character tables */
+  unsigned long int match_limit_recursion; /* Max recursive calls to match() */
+  unsigned char **mark;           /* For passing back a mark pointer */
+  void *executable_jit;           /* Contains a pointer to a compiled jit code */
+} pcre_extra;
+
+/* Same structure as above, but with 16 bit char pointers. */
+
+typedef struct pcre16_extra {
+  unsigned long int flags;        /* Bits for which fields are set */
+  void *study_data;               /* Opaque data from pcre_study() */
+  unsigned long int match_limit;  /* Maximum number of calls to match() */
+  void *callout_data;             /* Data passed back in callouts */
+  const unsigned char *tables;    /* Pointer to character tables */
+  unsigned long int match_limit_recursion; /* Max recursive calls to match() */
+  PCRE_UCHAR16 **mark;            /* For passing back a mark pointer */
+  void *executable_jit;           /* Contains a pointer to a compiled jit code */
+} pcre16_extra;
+
+/* The structure for passing out data via the pcre_callout_function. We use a
+structure so that new fields can be added on the end in future versions,
+without changing the API of the function, thereby allowing old clients to work
+without modification. */
+
+typedef struct pcre_callout_block {
+  int          version;           /* Identifies version of block */
+  /* ------------------------ Version 0 ------------------------------- */
+  int          callout_number;    /* Number compiled into pattern */
+  int         *offset_vector;     /* The offset vector */
+  PCRE_SPTR    subject;           /* The subject being matched */
+  int          subject_length;    /* The length of the subject */
+  int          start_match;       /* Offset to start of this match attempt */
+  int          current_position;  /* Where we currently are in the subject */
+  int          capture_top;       /* Max current capture */
+  int          capture_last;      /* Most recently closed capture */
+  void        *callout_data;      /* Data passed in with the call */
+  /* ------------------- Added for Version 1 -------------------------- */
+  int          pattern_position;  /* Offset to next item in the pattern */
+  int          next_item_length;  /* Length of next item in the pattern */
+  /* ------------------- Added for Version 2 -------------------------- */
+  const unsigned char *mark;      /* Pointer to current mark or NULL    */
+  /* ------------------------------------------------------------------ */
+} pcre_callout_block;
+
+/* Same structure as above, but with 16 bit char pointers. */
+
+typedef struct pcre16_callout_block {
+  int          version;           /* Identifies version of block */
+  /* ------------------------ Version 0 ------------------------------- */
+  int          callout_number;    /* Number compiled into pattern */
+  int         *offset_vector;     /* The offset vector */
+  PCRE_SPTR16  subject;           /* The subject being matched */
+  int          subject_length;    /* The length of the subject */
+  int          start_match;       /* Offset to start of this match attempt */
+  int          current_position;  /* Where we currently are in the subject */
+  int          capture_top;       /* Max current capture */
+  int          capture_last;      /* Most recently closed capture */
+  void        *callout_data;      /* Data passed in with the call */
+  /* ------------------- Added for Version 1 -------------------------- */
+  int          pattern_position;  /* Offset to next item in the pattern */
+  int          next_item_length;  /* Length of next item in the pattern */
+  /* ------------------- Added for Version 2 -------------------------- */
+  const PCRE_UCHAR16 *mark;       /* Pointer to current mark or NULL    */
+  /* ------------------------------------------------------------------ */
+} pcre16_callout_block;
+
+/* Indirection for store get and free functions. These can be set to
+alternative malloc/free functions if required. Special ones are used in the
+non-recursive case for "frames". There is also an optional callout function
+that is triggered by the (?) regex item. For Virtual Pascal, these definitions
+have to take another form. */
+
+#ifndef VPCOMPAT
+PCRE_EXP_DECL void *(*pcre_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre_free)(void *);
+PCRE_EXP_DECL void *(*pcre_stack_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre_stack_free)(void *);
+PCRE_EXP_DECL int   (*pcre_callout)(pcre_callout_block *);
+
+PCRE_EXP_DECL void *(*pcre16_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre16_free)(void *);
+PCRE_EXP_DECL void *(*pcre16_stack_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre16_stack_free)(void *);
+PCRE_EXP_DECL int   (*pcre16_callout)(pcre16_callout_block *);
+#else   /* VPCOMPAT */
+PCRE_EXP_DECL void *pcre_malloc(size_t);
+PCRE_EXP_DECL void  pcre_free(void *);
+PCRE_EXP_DECL void *pcre_stack_malloc(size_t);
+PCRE_EXP_DECL void  pcre_stack_free(void *);
+PCRE_EXP_DECL int   pcre_callout(pcre_callout_block *);
+
+PCRE_EXP_DECL void *pcre16_malloc(size_t);
+PCRE_EXP_DECL void  pcre16_free(void *);
+PCRE_EXP_DECL void *pcre16_stack_malloc(size_t);
+PCRE_EXP_DECL void  pcre16_stack_free(void *);
+PCRE_EXP_DECL int   pcre16_callout(pcre16_callout_block *);
+#endif  /* VPCOMPAT */
+
+/* User defined callback which provides a stack just before the match starts. */
+
+typedef pcre_jit_stack *(*pcre_jit_callback)(void *);
+typedef pcre16_jit_stack *(*pcre16_jit_callback)(void *);
+
+/* Exported PCRE functions */
+
+PCRE_EXP_DECL pcre *pcre_compile(const char *, int, const char **, int *,
+                  const unsigned char *);
+PCRE_EXP_DECL pcre16 *pcre16_compile(PCRE_SPTR16, int, const char **, int *,
+                  const unsigned char *);
+PCRE_EXP_DECL pcre *pcre_compile2(const char *, int, int *, const char **,
+                  int *, const unsigned char *);
+PCRE_EXP_DECL pcre16 *pcre16_compile2(PCRE_SPTR16, int, int *, const char **,
+                  int *, const unsigned char *);
+PCRE_EXP_DECL int  pcre_config(int, void *);
+PCRE_EXP_DECL int  pcre16_config(int, void *);
+PCRE_EXP_DECL int  pcre_copy_named_substring(const pcre *, const char *,
+                  int *, int, const char *, char *, int);
+PCRE_EXP_DECL int  pcre16_copy_named_substring(const pcre16 *, PCRE_SPTR16,
+                  int *, int, PCRE_SPTR16, PCRE_UCHAR16 *, int);
+PCRE_EXP_DECL int  pcre_copy_substring(const char *, int *, int, int,
+                  char *, int);
+PCRE_EXP_DECL int  pcre16_copy_substring(PCRE_SPTR16, int *, int, int,
+                  PCRE_UCHAR16 *, int);
+PCRE_EXP_DECL int  pcre_dfa_exec(const pcre *, const pcre_extra *,
+                  const char *, int, int, int, int *, int , int *, int);
+PCRE_EXP_DECL int  pcre16_dfa_exec(const pcre16 *, const pcre16_extra *,
+                  PCRE_SPTR16, int, int, int, int *, int , int *, int);
+PCRE_EXP_DECL int  pcre_exec(const pcre *, const pcre_extra *, PCRE_SPTR,
+                   int, int, int, int *, int);
+PCRE_EXP_DECL int  pcre16_exec(const pcre16 *, const pcre16_extra *,
+                   PCRE_SPTR16, int, int, int, int *, int);
+PCRE_EXP_DECL void pcre_free_substring(const char *);
+PCRE_EXP_DECL void pcre16_free_substring(PCRE_SPTR16);
+PCRE_EXP_DECL void pcre_free_substring_list(const char **);
+PCRE_EXP_DECL void pcre16_free_substring_list(PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_fullinfo(const pcre *, const pcre_extra *, int,
+                  void *);
+PCRE_EXP_DECL int  pcre16_fullinfo(const pcre16 *, const pcre16_extra *, int,
+                  void *);
+PCRE_EXP_DECL int  pcre_get_named_substring(const pcre *, const char *,
+                  int *, int, const char *, const char **);
+PCRE_EXP_DECL int  pcre16_get_named_substring(const pcre16 *, PCRE_SPTR16,
+                  int *, int, PCRE_SPTR16, PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_get_stringnumber(const pcre *, const char *);
+PCRE_EXP_DECL int  pcre16_get_stringnumber(const pcre16 *, PCRE_SPTR16);
+PCRE_EXP_DECL int  pcre_get_stringtable_entries(const pcre *, const char *,
+                  char **, char **);
+PCRE_EXP_DECL int  pcre16_get_stringtable_entries(const pcre16 *, PCRE_SPTR16,
+                  PCRE_UCHAR16 **, PCRE_UCHAR16 **);
+PCRE_EXP_DECL int  pcre_get_substring(const char *, int *, int, int,
+                  const char **);
+PCRE_EXP_DECL int  pcre16_get_substring(PCRE_SPTR16, int *, int, int,
+                  PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_get_substring_list(const char *, int *, int,
+                  const char ***);
+PCRE_EXP_DECL int  pcre16_get_substring_list(PCRE_SPTR16, int *, int,
+                  PCRE_SPTR16 **);
+PCRE_EXP_DECL const unsigned char *pcre_maketables(void);
+PCRE_EXP_DECL const unsigned char *pcre16_maketables(void);
+PCRE_EXP_DECL int  pcre_refcount(pcre *, int);
+PCRE_EXP_DECL int  pcre16_refcount(pcre16 *, int);
+PCRE_EXP_DECL pcre_extra *pcre_study(const pcre *, int, const char **);
+PCRE_EXP_DECL pcre16_extra *pcre16_study(const pcre16 *, int, const char **);
+PCRE_EXP_DECL void pcre_free_study(pcre_extra *);
+PCRE_EXP_DECL void pcre16_free_study(pcre16_extra *);
+PCRE_EXP_DECL const char *pcre_version(void);
+PCRE_EXP_DECL const char *pcre16_version(void);
+
+/* Utility functions for byte order swaps. */
+PCRE_EXP_DECL int  pcre_pattern_to_host_byte_order(pcre *, pcre_extra *,
+                  const unsigned char *);
+PCRE_EXP_DECL int  pcre16_pattern_to_host_byte_order(pcre16 *, pcre16_extra *,
+                  const unsigned char *);
+PCRE_EXP_DECL int  pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *,
+                  PCRE_SPTR16, int, int *, int);
+
+/* JIT compiler related functions. */
+
+PCRE_EXP_DECL pcre_jit_stack *pcre_jit_stack_alloc(int, int);
+PCRE_EXP_DECL pcre16_jit_stack *pcre16_jit_stack_alloc(int, int);
+PCRE_EXP_DECL void pcre_jit_stack_free(pcre_jit_stack *);
+PCRE_EXP_DECL void pcre16_jit_stack_free(pcre16_jit_stack *);
+PCRE_EXP_DECL void pcre_assign_jit_stack(pcre_extra *,
+                  pcre_jit_callback, void *);
+PCRE_EXP_DECL void pcre16_assign_jit_stack(pcre16_extra *,
+                  pcre16_jit_callback, void *);
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* End of pcre.h */
diff --git a/8.31/pcre.h.generic b/8.31/pcre.h.generic
new file mode 100644
index 0000000..b71ead3
--- /dev/null
+++ b/8.31/pcre.h.generic
@@ -0,0 +1,507 @@
+/*************************************************
+*       Perl-Compatible Regular Expressions      *
+*************************************************/
+
+/* This is the public header file for the PCRE library, to be #included by
+applications that call the PCRE functions.
+
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+#ifndef _PCRE_H
+#define _PCRE_H
+
+/* The current PCRE version information. */
+
+#define PCRE_MAJOR          8
+#define PCRE_MINOR          31
+#define PCRE_PRERELEASE     
+#define PCRE_DATE           2012-07-06
+
+/* When an application links to a PCRE DLL in Windows, the symbols that are
+imported have to be identified as such. When building PCRE, the appropriate
+export setting is defined in pcre_internal.h, which includes this file. So we
+don't change existing definitions of PCRE_EXP_DECL and PCRECPP_EXP_DECL. */
+
+#if defined(_WIN32) && !defined(PCRE_STATIC)
+#  ifndef PCRE_EXP_DECL
+#    define PCRE_EXP_DECL  extern __declspec(dllimport)
+#  endif
+#  ifdef __cplusplus
+#    ifndef PCRECPP_EXP_DECL
+#      define PCRECPP_EXP_DECL  extern __declspec(dllimport)
+#    endif
+#    ifndef PCRECPP_EXP_DEFN
+#      define PCRECPP_EXP_DEFN  __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+/* By default, we use the standard "extern" declarations. */
+
+#ifndef PCRE_EXP_DECL
+#  ifdef __cplusplus
+#    define PCRE_EXP_DECL  extern "C"
+#  else
+#    define PCRE_EXP_DECL  extern
+#  endif
+#endif
+
+#ifdef __cplusplus
+#  ifndef PCRECPP_EXP_DECL
+#    define PCRECPP_EXP_DECL  extern
+#  endif
+#  ifndef PCRECPP_EXP_DEFN
+#    define PCRECPP_EXP_DEFN
+#  endif
+#endif
+
+/* Have to include stdlib.h in order to ensure that size_t is defined;
+it is needed here for malloc. */
+
+#include <stdlib.h>
+
+/* Allow for C++ users */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Options. Some are compile-time only, some are run-time only, and some are
+both, so we keep them all distinct. However, almost all the bits in the options
+word are now used. In the long run, we may have to re-use some of the
+compile-time only bits for runtime options, or vice versa. In the comments
+below, "compile", "exec", and "DFA exec" mean that the option is permitted to
+be set for those functions; "used in" means that an option may be set only for
+compile, but is subsequently referenced in exec and/or DFA exec. Any of the
+compile-time options may be inspected during studying (and therefore JIT
+compiling). */
+
+#define PCRE_CASELESS           0x00000001  /* Compile */
+#define PCRE_MULTILINE          0x00000002  /* Compile */
+#define PCRE_DOTALL             0x00000004  /* Compile */
+#define PCRE_EXTENDED           0x00000008  /* Compile */
+#define PCRE_ANCHORED           0x00000010  /* Compile, exec, DFA exec */
+#define PCRE_DOLLAR_ENDONLY     0x00000020  /* Compile, used in exec, DFA exec */
+#define PCRE_EXTRA              0x00000040  /* Compile */
+#define PCRE_NOTBOL             0x00000080  /* Exec, DFA exec */
+#define PCRE_NOTEOL             0x00000100  /* Exec, DFA exec */
+#define PCRE_UNGREEDY           0x00000200  /* Compile */
+#define PCRE_NOTEMPTY           0x00000400  /* Exec, DFA exec */
+/* The next two are also used in exec and DFA exec */
+#define PCRE_UTF8               0x00000800  /* Compile (same as PCRE_UTF16) */
+#define PCRE_UTF16              0x00000800  /* Compile (same as PCRE_UTF8) */
+#define PCRE_NO_AUTO_CAPTURE    0x00001000  /* Compile */
+/* The next two are also used in exec and DFA exec */
+#define PCRE_NO_UTF8_CHECK      0x00002000  /* Compile (same as PCRE_NO_UTF16_CHECK) */
+#define PCRE_NO_UTF16_CHECK     0x00002000  /* Compile (same as PCRE_NO_UTF8_CHECK) */
+#define PCRE_AUTO_CALLOUT       0x00004000  /* Compile */
+#define PCRE_PARTIAL_SOFT       0x00008000  /* Exec, DFA exec */
+#define PCRE_PARTIAL            0x00008000  /* Backwards compatible synonym */
+#define PCRE_DFA_SHORTEST       0x00010000  /* DFA exec */
+#define PCRE_DFA_RESTART        0x00020000  /* DFA exec */
+#define PCRE_FIRSTLINE          0x00040000  /* Compile, used in exec, DFA exec */
+#define PCRE_DUPNAMES           0x00080000  /* Compile */
+#define PCRE_NEWLINE_CR         0x00100000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_LF         0x00200000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_CRLF       0x00300000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_ANY        0x00400000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_ANYCRLF    0x00500000  /* Compile, exec, DFA exec */
+#define PCRE_BSR_ANYCRLF        0x00800000  /* Compile, exec, DFA exec */
+#define PCRE_BSR_UNICODE        0x01000000  /* Compile, exec, DFA exec */
+#define PCRE_JAVASCRIPT_COMPAT  0x02000000  /* Compile, used in exec */
+#define PCRE_NO_START_OPTIMIZE  0x04000000  /* Compile, exec, DFA exec */
+#define PCRE_NO_START_OPTIMISE  0x04000000  /* Synonym */
+#define PCRE_PARTIAL_HARD       0x08000000  /* Exec, DFA exec */
+#define PCRE_NOTEMPTY_ATSTART   0x10000000  /* Exec, DFA exec */
+#define PCRE_UCP                0x20000000  /* Compile, used in exec, DFA exec */
+
+/* Exec-time and get/set-time error codes */
+
+#define PCRE_ERROR_NOMATCH          (-1)
+#define PCRE_ERROR_NULL             (-2)
+#define PCRE_ERROR_BADOPTION        (-3)
+#define PCRE_ERROR_BADMAGIC         (-4)
+#define PCRE_ERROR_UNKNOWN_OPCODE   (-5)
+#define PCRE_ERROR_UNKNOWN_NODE     (-5)  /* For backward compatibility */
+#define PCRE_ERROR_NOMEMORY         (-6)
+#define PCRE_ERROR_NOSUBSTRING      (-7)
+#define PCRE_ERROR_MATCHLIMIT       (-8)
+#define PCRE_ERROR_CALLOUT          (-9)  /* Never used by PCRE itself */
+#define PCRE_ERROR_BADUTF8         (-10)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF16        (-10)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF8_OFFSET  (-11)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF16_OFFSET (-11)  /* Same for 8/16 */
+#define PCRE_ERROR_PARTIAL         (-12)
+#define PCRE_ERROR_BADPARTIAL      (-13)
+#define PCRE_ERROR_INTERNAL        (-14)
+#define PCRE_ERROR_BADCOUNT        (-15)
+#define PCRE_ERROR_DFA_UITEM       (-16)
+#define PCRE_ERROR_DFA_UCOND       (-17)
+#define PCRE_ERROR_DFA_UMLIMIT     (-18)
+#define PCRE_ERROR_DFA_WSSIZE      (-19)
+#define PCRE_ERROR_DFA_RECURSE     (-20)
+#define PCRE_ERROR_RECURSIONLIMIT  (-21)
+#define PCRE_ERROR_NULLWSLIMIT     (-22)  /* No longer actually used */
+#define PCRE_ERROR_BADNEWLINE      (-23)
+#define PCRE_ERROR_BADOFFSET       (-24)
+#define PCRE_ERROR_SHORTUTF8       (-25)
+#define PCRE_ERROR_SHORTUTF16      (-25)  /* Same for 8/16 */
+#define PCRE_ERROR_RECURSELOOP     (-26)
+#define PCRE_ERROR_JIT_STACKLIMIT  (-27)
+#define PCRE_ERROR_BADMODE         (-28)
+#define PCRE_ERROR_BADENDIANNESS   (-29)
+#define PCRE_ERROR_DFA_BADRESTART  (-30)
+
+/* Specific error codes for UTF-8 validity checks */
+
+#define PCRE_UTF8_ERR0               0
+#define PCRE_UTF8_ERR1               1
+#define PCRE_UTF8_ERR2               2
+#define PCRE_UTF8_ERR3               3
+#define PCRE_UTF8_ERR4               4
+#define PCRE_UTF8_ERR5               5
+#define PCRE_UTF8_ERR6               6
+#define PCRE_UTF8_ERR7               7
+#define PCRE_UTF8_ERR8               8
+#define PCRE_UTF8_ERR9               9
+#define PCRE_UTF8_ERR10             10
+#define PCRE_UTF8_ERR11             11
+#define PCRE_UTF8_ERR12             12
+#define PCRE_UTF8_ERR13             13
+#define PCRE_UTF8_ERR14             14
+#define PCRE_UTF8_ERR15             15
+#define PCRE_UTF8_ERR16             16
+#define PCRE_UTF8_ERR17             17
+#define PCRE_UTF8_ERR18             18
+#define PCRE_UTF8_ERR19             19
+#define PCRE_UTF8_ERR20             20
+#define PCRE_UTF8_ERR21             21
+
+/* Specific error codes for UTF-16 validity checks */
+
+#define PCRE_UTF16_ERR0              0
+#define PCRE_UTF16_ERR1              1
+#define PCRE_UTF16_ERR2              2
+#define PCRE_UTF16_ERR3              3
+#define PCRE_UTF16_ERR4              4
+
+/* Request types for pcre_fullinfo() */
+
+#define PCRE_INFO_OPTIONS            0
+#define PCRE_INFO_SIZE               1
+#define PCRE_INFO_CAPTURECOUNT       2
+#define PCRE_INFO_BACKREFMAX         3
+#define PCRE_INFO_FIRSTBYTE          4
+#define PCRE_INFO_FIRSTCHAR          4  /* For backwards compatibility */
+#define PCRE_INFO_FIRSTTABLE         5
+#define PCRE_INFO_LASTLITERAL        6
+#define PCRE_INFO_NAMEENTRYSIZE      7
+#define PCRE_INFO_NAMECOUNT          8
+#define PCRE_INFO_NAMETABLE          9
+#define PCRE_INFO_STUDYSIZE         10
+#define PCRE_INFO_DEFAULT_TABLES    11
+#define PCRE_INFO_OKPARTIAL         12
+#define PCRE_INFO_JCHANGED          13
+#define PCRE_INFO_HASCRORLF         14
+#define PCRE_INFO_MINLENGTH         15
+#define PCRE_INFO_JIT               16
+#define PCRE_INFO_JITSIZE           17
+#define PCRE_INFO_MAXLOOKBEHIND     18
+
+/* Request types for pcre_config(). Do not re-arrange, in order to remain
+compatible. */
+
+#define PCRE_CONFIG_UTF8                    0
+#define PCRE_CONFIG_NEWLINE                 1
+#define PCRE_CONFIG_LINK_SIZE               2
+#define PCRE_CONFIG_POSIX_MALLOC_THRESHOLD  3
+#define PCRE_CONFIG_MATCH_LIMIT             4
+#define PCRE_CONFIG_STACKRECURSE            5
+#define PCRE_CONFIG_UNICODE_PROPERTIES      6
+#define PCRE_CONFIG_MATCH_LIMIT_RECURSION   7
+#define PCRE_CONFIG_BSR                     8
+#define PCRE_CONFIG_JIT                     9
+#define PCRE_CONFIG_UTF16                  10
+#define PCRE_CONFIG_JITTARGET              11
+
+/* Request types for pcre_study(). Do not re-arrange, in order to remain
+compatible. */
+
+#define PCRE_STUDY_JIT_COMPILE                0x0001
+#define PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE   0x0002
+#define PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE   0x0004
+
+/* Bit flags for the pcre[16]_extra structure. Do not re-arrange or redefine
+these bits, just add new ones on the end, in order to remain compatible. */
+
+#define PCRE_EXTRA_STUDY_DATA             0x0001
+#define PCRE_EXTRA_MATCH_LIMIT            0x0002
+#define PCRE_EXTRA_CALLOUT_DATA           0x0004
+#define PCRE_EXTRA_TABLES                 0x0008
+#define PCRE_EXTRA_MATCH_LIMIT_RECURSION  0x0010
+#define PCRE_EXTRA_MARK                   0x0020
+#define PCRE_EXTRA_EXECUTABLE_JIT         0x0040
+
+/* Types */
+
+struct real_pcre;                 /* declaration; the definition is private  */
+typedef struct real_pcre pcre;
+
+struct real_pcre16;               /* declaration; the definition is private  */
+typedef struct real_pcre16 pcre16;
+
+struct real_pcre_jit_stack;       /* declaration; the definition is private  */
+typedef struct real_pcre_jit_stack pcre_jit_stack;
+
+struct real_pcre16_jit_stack;     /* declaration; the definition is private  */
+typedef struct real_pcre16_jit_stack pcre16_jit_stack;
+
+/* If PCRE is compiled with 16 bit character support, PCRE_UCHAR16 must contain
+a 16 bit wide signed data type. Otherwise it can be a dummy data type since
+pcre16 functions are not implemented. There is a check for this in pcre_internal.h. */
+#ifndef PCRE_UCHAR16
+#define PCRE_UCHAR16 unsigned short
+#endif
+
+#ifndef PCRE_SPTR16
+#define PCRE_SPTR16 const PCRE_UCHAR16 *
+#endif
+
+/* When PCRE is compiled as a C++ library, the subject pointer type can be
+replaced with a custom type. For conventional use, the public interface is a
+const char *. */
+
+#ifndef PCRE_SPTR
+#define PCRE_SPTR const char *
+#endif
+
+/* The structure for passing additional data to pcre_exec(). This is defined in
+such as way as to be extensible. Always add new fields at the end, in order to
+remain compatible. */
+
+typedef struct pcre_extra {
+  unsigned long int flags;        /* Bits for which fields are set */
+  void *study_data;               /* Opaque data from pcre_study() */
+  unsigned long int match_limit;  /* Maximum number of calls to match() */
+  void *callout_data;             /* Data passed back in callouts */
+  const unsigned char *tables;    /* Pointer to character tables */
+  unsigned long int match_limit_recursion; /* Max recursive calls to match() */
+  unsigned char **mark;           /* For passing back a mark pointer */
+  void *executable_jit;           /* Contains a pointer to a compiled jit code */
+} pcre_extra;
+
+/* Same structure as above, but with 16 bit char pointers. */
+
+typedef struct pcre16_extra {
+  unsigned long int flags;        /* Bits for which fields are set */
+  void *study_data;               /* Opaque data from pcre_study() */
+  unsigned long int match_limit;  /* Maximum number of calls to match() */
+  void *callout_data;             /* Data passed back in callouts */
+  const unsigned char *tables;    /* Pointer to character tables */
+  unsigned long int match_limit_recursion; /* Max recursive calls to match() */
+  PCRE_UCHAR16 **mark;            /* For passing back a mark pointer */
+  void *executable_jit;           /* Contains a pointer to a compiled jit code */
+} pcre16_extra;
+
+/* The structure for passing out data via the pcre_callout_function. We use a
+structure so that new fields can be added on the end in future versions,
+without changing the API of the function, thereby allowing old clients to work
+without modification. */
+
+typedef struct pcre_callout_block {
+  int          version;           /* Identifies version of block */
+  /* ------------------------ Version 0 ------------------------------- */
+  int          callout_number;    /* Number compiled into pattern */
+  int         *offset_vector;     /* The offset vector */
+  PCRE_SPTR    subject;           /* The subject being matched */
+  int          subject_length;    /* The length of the subject */
+  int          start_match;       /* Offset to start of this match attempt */
+  int          current_position;  /* Where we currently are in the subject */
+  int          capture_top;       /* Max current capture */
+  int          capture_last;      /* Most recently closed capture */
+  void        *callout_data;      /* Data passed in with the call */
+  /* ------------------- Added for Version 1 -------------------------- */
+  int          pattern_position;  /* Offset to next item in the pattern */
+  int          next_item_length;  /* Length of next item in the pattern */
+  /* ------------------- Added for Version 2 -------------------------- */
+  const unsigned char *mark;      /* Pointer to current mark or NULL    */
+  /* ------------------------------------------------------------------ */
+} pcre_callout_block;
+
+/* Same structure as above, but with 16 bit char pointers. */
+
+typedef struct pcre16_callout_block {
+  int          version;           /* Identifies version of block */
+  /* ------------------------ Version 0 ------------------------------- */
+  int          callout_number;    /* Number compiled into pattern */
+  int         *offset_vector;     /* The offset vector */
+  PCRE_SPTR16  subject;           /* The subject being matched */
+  int          subject_length;    /* The length of the subject */
+  int          start_match;       /* Offset to start of this match attempt */
+  int          current_position;  /* Where we currently are in the subject */
+  int          capture_top;       /* Max current capture */
+  int          capture_last;      /* Most recently closed capture */
+  void        *callout_data;      /* Data passed in with the call */
+  /* ------------------- Added for Version 1 -------------------------- */
+  int          pattern_position;  /* Offset to next item in the pattern */
+  int          next_item_length;  /* Length of next item in the pattern */
+  /* ------------------- Added for Version 2 -------------------------- */
+  const PCRE_UCHAR16 *mark;       /* Pointer to current mark or NULL    */
+  /* ------------------------------------------------------------------ */
+} pcre16_callout_block;
+
+/* Indirection for store get and free functions. These can be set to
+alternative malloc/free functions if required. Special ones are used in the
+non-recursive case for "frames". There is also an optional callout function
+that is triggered by the (?) regex item. For Virtual Pascal, these definitions
+have to take another form. */
+
+#ifndef VPCOMPAT
+PCRE_EXP_DECL void *(*pcre_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre_free)(void *);
+PCRE_EXP_DECL void *(*pcre_stack_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre_stack_free)(void *);
+PCRE_EXP_DECL int   (*pcre_callout)(pcre_callout_block *);
+
+PCRE_EXP_DECL void *(*pcre16_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre16_free)(void *);
+PCRE_EXP_DECL void *(*pcre16_stack_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre16_stack_free)(void *);
+PCRE_EXP_DECL int   (*pcre16_callout)(pcre16_callout_block *);
+#else   /* VPCOMPAT */
+PCRE_EXP_DECL void *pcre_malloc(size_t);
+PCRE_EXP_DECL void  pcre_free(void *);
+PCRE_EXP_DECL void *pcre_stack_malloc(size_t);
+PCRE_EXP_DECL void  pcre_stack_free(void *);
+PCRE_EXP_DECL int   pcre_callout(pcre_callout_block *);
+
+PCRE_EXP_DECL void *pcre16_malloc(size_t);
+PCRE_EXP_DECL void  pcre16_free(void *);
+PCRE_EXP_DECL void *pcre16_stack_malloc(size_t);
+PCRE_EXP_DECL void  pcre16_stack_free(void *);
+PCRE_EXP_DECL int   pcre16_callout(pcre16_callout_block *);
+#endif  /* VPCOMPAT */
+
+/* User defined callback which provides a stack just before the match starts. */
+
+typedef pcre_jit_stack *(*pcre_jit_callback)(void *);
+typedef pcre16_jit_stack *(*pcre16_jit_callback)(void *);
+
+/* Exported PCRE functions */
+
+PCRE_EXP_DECL pcre *pcre_compile(const char *, int, const char **, int *,
+                  const unsigned char *);
+PCRE_EXP_DECL pcre16 *pcre16_compile(PCRE_SPTR16, int, const char **, int *,
+                  const unsigned char *);
+PCRE_EXP_DECL pcre *pcre_compile2(const char *, int, int *, const char **,
+                  int *, const unsigned char *);
+PCRE_EXP_DECL pcre16 *pcre16_compile2(PCRE_SPTR16, int, int *, const char **,
+                  int *, const unsigned char *);
+PCRE_EXP_DECL int  pcre_config(int, void *);
+PCRE_EXP_DECL int  pcre16_config(int, void *);
+PCRE_EXP_DECL int  pcre_copy_named_substring(const pcre *, const char *,
+                  int *, int, const char *, char *, int);
+PCRE_EXP_DECL int  pcre16_copy_named_substring(const pcre16 *, PCRE_SPTR16,
+                  int *, int, PCRE_SPTR16, PCRE_UCHAR16 *, int);
+PCRE_EXP_DECL int  pcre_copy_substring(const char *, int *, int, int,
+                  char *, int);
+PCRE_EXP_DECL int  pcre16_copy_substring(PCRE_SPTR16, int *, int, int,
+                  PCRE_UCHAR16 *, int);
+PCRE_EXP_DECL int  pcre_dfa_exec(const pcre *, const pcre_extra *,
+                  const char *, int, int, int, int *, int , int *, int);
+PCRE_EXP_DECL int  pcre16_dfa_exec(const pcre16 *, const pcre16_extra *,
+                  PCRE_SPTR16, int, int, int, int *, int , int *, int);
+PCRE_EXP_DECL int  pcre_exec(const pcre *, const pcre_extra *, PCRE_SPTR,
+                   int, int, int, int *, int);
+PCRE_EXP_DECL int  pcre16_exec(const pcre16 *, const pcre16_extra *,
+                   PCRE_SPTR16, int, int, int, int *, int);
+PCRE_EXP_DECL void pcre_free_substring(const char *);
+PCRE_EXP_DECL void pcre16_free_substring(PCRE_SPTR16);
+PCRE_EXP_DECL void pcre_free_substring_list(const char **);
+PCRE_EXP_DECL void pcre16_free_substring_list(PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_fullinfo(const pcre *, const pcre_extra *, int,
+                  void *);
+PCRE_EXP_DECL int  pcre16_fullinfo(const pcre16 *, const pcre16_extra *, int,
+                  void *);
+PCRE_EXP_DECL int  pcre_get_named_substring(const pcre *, const char *,
+                  int *, int, const char *, const char **);
+PCRE_EXP_DECL int  pcre16_get_named_substring(const pcre16 *, PCRE_SPTR16,
+                  int *, int, PCRE_SPTR16, PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_get_stringnumber(const pcre *, const char *);
+PCRE_EXP_DECL int  pcre16_get_stringnumber(const pcre16 *, PCRE_SPTR16);
+PCRE_EXP_DECL int  pcre_get_stringtable_entries(const pcre *, const char *,
+                  char **, char **);
+PCRE_EXP_DECL int  pcre16_get_stringtable_entries(const pcre16 *, PCRE_SPTR16,
+                  PCRE_UCHAR16 **, PCRE_UCHAR16 **);
+PCRE_EXP_DECL int  pcre_get_substring(const char *, int *, int, int,
+                  const char **);
+PCRE_EXP_DECL int  pcre16_get_substring(PCRE_SPTR16, int *, int, int,
+                  PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_get_substring_list(const char *, int *, int,
+                  const char ***);
+PCRE_EXP_DECL int  pcre16_get_substring_list(PCRE_SPTR16, int *, int,
+                  PCRE_SPTR16 **);
+PCRE_EXP_DECL const unsigned char *pcre_maketables(void);
+PCRE_EXP_DECL const unsigned char *pcre16_maketables(void);
+PCRE_EXP_DECL int  pcre_refcount(pcre *, int);
+PCRE_EXP_DECL int  pcre16_refcount(pcre16 *, int);
+PCRE_EXP_DECL pcre_extra *pcre_study(const pcre *, int, const char **);
+PCRE_EXP_DECL pcre16_extra *pcre16_study(const pcre16 *, int, const char **);
+PCRE_EXP_DECL void pcre_free_study(pcre_extra *);
+PCRE_EXP_DECL void pcre16_free_study(pcre16_extra *);
+PCRE_EXP_DECL const char *pcre_version(void);
+PCRE_EXP_DECL const char *pcre16_version(void);
+
+/* Utility functions for byte order swaps. */
+PCRE_EXP_DECL int  pcre_pattern_to_host_byte_order(pcre *, pcre_extra *,
+                  const unsigned char *);
+PCRE_EXP_DECL int  pcre16_pattern_to_host_byte_order(pcre16 *, pcre16_extra *,
+                  const unsigned char *);
+PCRE_EXP_DECL int  pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *,
+                  PCRE_SPTR16, int, int *, int);
+
+/* JIT compiler related functions. */
+
+PCRE_EXP_DECL pcre_jit_stack *pcre_jit_stack_alloc(int, int);
+PCRE_EXP_DECL pcre16_jit_stack *pcre16_jit_stack_alloc(int, int);
+PCRE_EXP_DECL void pcre_jit_stack_free(pcre_jit_stack *);
+PCRE_EXP_DECL void pcre16_jit_stack_free(pcre16_jit_stack *);
+PCRE_EXP_DECL void pcre_assign_jit_stack(pcre_extra *,
+                  pcre_jit_callback, void *);
+PCRE_EXP_DECL void pcre16_assign_jit_stack(pcre16_extra *,
+                  pcre16_jit_callback, void *);
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* End of pcre.h */
diff --git a/8.31/pcre.h.in b/8.31/pcre.h.in
new file mode 100644
index 0000000..3588cd3
--- /dev/null
+++ b/8.31/pcre.h.in
@@ -0,0 +1,507 @@
+/*************************************************
+*       Perl-Compatible Regular Expressions      *
+*************************************************/
+
+/* This is the public header file for the PCRE library, to be #included by
+applications that call the PCRE functions.
+
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+#ifndef _PCRE_H
+#define _PCRE_H
+
+/* The current PCRE version information. */
+
+#define PCRE_MAJOR          @PCRE_MAJOR@
+#define PCRE_MINOR          @PCRE_MINOR@
+#define PCRE_PRERELEASE     @PCRE_PRERELEASE@
+#define PCRE_DATE           @PCRE_DATE@
+
+/* When an application links to a PCRE DLL in Windows, the symbols that are
+imported have to be identified as such. When building PCRE, the appropriate
+export setting is defined in pcre_internal.h, which includes this file. So we
+don't change existing definitions of PCRE_EXP_DECL and PCRECPP_EXP_DECL. */
+
+#if defined(_WIN32) && !defined(PCRE_STATIC)
+#  ifndef PCRE_EXP_DECL
+#    define PCRE_EXP_DECL  extern __declspec(dllimport)
+#  endif
+#  ifdef __cplusplus
+#    ifndef PCRECPP_EXP_DECL
+#      define PCRECPP_EXP_DECL  extern __declspec(dllimport)
+#    endif
+#    ifndef PCRECPP_EXP_DEFN
+#      define PCRECPP_EXP_DEFN  __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+/* By default, we use the standard "extern" declarations. */
+
+#ifndef PCRE_EXP_DECL
+#  ifdef __cplusplus
+#    define PCRE_EXP_DECL  extern "C"
+#  else
+#    define PCRE_EXP_DECL  extern
+#  endif
+#endif
+
+#ifdef __cplusplus
+#  ifndef PCRECPP_EXP_DECL
+#    define PCRECPP_EXP_DECL  extern
+#  endif
+#  ifndef PCRECPP_EXP_DEFN
+#    define PCRECPP_EXP_DEFN
+#  endif
+#endif
+
+/* Have to include stdlib.h in order to ensure that size_t is defined;
+it is needed here for malloc. */
+
+#include <stdlib.h>
+
+/* Allow for C++ users */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Options. Some are compile-time only, some are run-time only, and some are
+both, so we keep them all distinct. However, almost all the bits in the options
+word are now used. In the long run, we may have to re-use some of the
+compile-time only bits for runtime options, or vice versa. In the comments
+below, "compile", "exec", and "DFA exec" mean that the option is permitted to
+be set for those functions; "used in" means that an option may be set only for
+compile, but is subsequently referenced in exec and/or DFA exec. Any of the
+compile-time options may be inspected during studying (and therefore JIT
+compiling). */
+
+#define PCRE_CASELESS           0x00000001  /* Compile */
+#define PCRE_MULTILINE          0x00000002  /* Compile */
+#define PCRE_DOTALL             0x00000004  /* Compile */
+#define PCRE_EXTENDED           0x00000008  /* Compile */
+#define PCRE_ANCHORED           0x00000010  /* Compile, exec, DFA exec */
+#define PCRE_DOLLAR_ENDONLY     0x00000020  /* Compile, used in exec, DFA exec */
+#define PCRE_EXTRA              0x00000040  /* Compile */
+#define PCRE_NOTBOL             0x00000080  /* Exec, DFA exec */
+#define PCRE_NOTEOL             0x00000100  /* Exec, DFA exec */
+#define PCRE_UNGREEDY           0x00000200  /* Compile */
+#define PCRE_NOTEMPTY           0x00000400  /* Exec, DFA exec */
+/* The next two are also used in exec and DFA exec */
+#define PCRE_UTF8               0x00000800  /* Compile (same as PCRE_UTF16) */
+#define PCRE_UTF16              0x00000800  /* Compile (same as PCRE_UTF8) */
+#define PCRE_NO_AUTO_CAPTURE    0x00001000  /* Compile */
+/* The next two are also used in exec and DFA exec */
+#define PCRE_NO_UTF8_CHECK      0x00002000  /* Compile (same as PCRE_NO_UTF16_CHECK) */
+#define PCRE_NO_UTF16_CHECK     0x00002000  /* Compile (same as PCRE_NO_UTF8_CHECK) */
+#define PCRE_AUTO_CALLOUT       0x00004000  /* Compile */
+#define PCRE_PARTIAL_SOFT       0x00008000  /* Exec, DFA exec */
+#define PCRE_PARTIAL            0x00008000  /* Backwards compatible synonym */
+#define PCRE_DFA_SHORTEST       0x00010000  /* DFA exec */
+#define PCRE_DFA_RESTART        0x00020000  /* DFA exec */
+#define PCRE_FIRSTLINE          0x00040000  /* Compile, used in exec, DFA exec */
+#define PCRE_DUPNAMES           0x00080000  /* Compile */
+#define PCRE_NEWLINE_CR         0x00100000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_LF         0x00200000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_CRLF       0x00300000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_ANY        0x00400000  /* Compile, exec, DFA exec */
+#define PCRE_NEWLINE_ANYCRLF    0x00500000  /* Compile, exec, DFA exec */
+#define PCRE_BSR_ANYCRLF        0x00800000  /* Compile, exec, DFA exec */
+#define PCRE_BSR_UNICODE        0x01000000  /* Compile, exec, DFA exec */
+#define PCRE_JAVASCRIPT_COMPAT  0x02000000  /* Compile, used in exec */
+#define PCRE_NO_START_OPTIMIZE  0x04000000  /* Compile, exec, DFA exec */
+#define PCRE_NO_START_OPTIMISE  0x04000000  /* Synonym */
+#define PCRE_PARTIAL_HARD       0x08000000  /* Exec, DFA exec */
+#define PCRE_NOTEMPTY_ATSTART   0x10000000  /* Exec, DFA exec */
+#define PCRE_UCP                0x20000000  /* Compile, used in exec, DFA exec */
+
+/* Exec-time and get/set-time error codes */
+
+#define PCRE_ERROR_NOMATCH          (-1)
+#define PCRE_ERROR_NULL             (-2)
+#define PCRE_ERROR_BADOPTION        (-3)
+#define PCRE_ERROR_BADMAGIC         (-4)
+#define PCRE_ERROR_UNKNOWN_OPCODE   (-5)
+#define PCRE_ERROR_UNKNOWN_NODE     (-5)  /* For backward compatibility */
+#define PCRE_ERROR_NOMEMORY         (-6)
+#define PCRE_ERROR_NOSUBSTRING      (-7)
+#define PCRE_ERROR_MATCHLIMIT       (-8)
+#define PCRE_ERROR_CALLOUT          (-9)  /* Never used by PCRE itself */
+#define PCRE_ERROR_BADUTF8         (-10)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF16        (-10)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF8_OFFSET  (-11)  /* Same for 8/16 */
+#define PCRE_ERROR_BADUTF16_OFFSET (-11)  /* Same for 8/16 */
+#define PCRE_ERROR_PARTIAL         (-12)
+#define PCRE_ERROR_BADPARTIAL      (-13)
+#define PCRE_ERROR_INTERNAL        (-14)
+#define PCRE_ERROR_BADCOUNT        (-15)
+#define PCRE_ERROR_DFA_UITEM       (-16)
+#define PCRE_ERROR_DFA_UCOND       (-17)
+#define PCRE_ERROR_DFA_UMLIMIT     (-18)
+#define PCRE_ERROR_DFA_WSSIZE      (-19)
+#define PCRE_ERROR_DFA_RECURSE     (-20)
+#define PCRE_ERROR_RECURSIONLIMIT  (-21)
+#define PCRE_ERROR_NULLWSLIMIT     (-22)  /* No longer actually used */
+#define PCRE_ERROR_BADNEWLINE      (-23)
+#define PCRE_ERROR_BADOFFSET       (-24)
+#define PCRE_ERROR_SHORTUTF8       (-25)
+#define PCRE_ERROR_SHORTUTF16      (-25)  /* Same for 8/16 */
+#define PCRE_ERROR_RECURSELOOP     (-26)
+#define PCRE_ERROR_JIT_STACKLIMIT  (-27)
+#define PCRE_ERROR_BADMODE         (-28)
+#define PCRE_ERROR_BADENDIANNESS   (-29)
+#define PCRE_ERROR_DFA_BADRESTART  (-30)
+
+/* Specific error codes for UTF-8 validity checks */
+
+#define PCRE_UTF8_ERR0               0
+#define PCRE_UTF8_ERR1               1
+#define PCRE_UTF8_ERR2               2
+#define PCRE_UTF8_ERR3               3
+#define PCRE_UTF8_ERR4               4
+#define PCRE_UTF8_ERR5               5
+#define PCRE_UTF8_ERR6               6
+#define PCRE_UTF8_ERR7               7
+#define PCRE_UTF8_ERR8               8
+#define PCRE_UTF8_ERR9               9
+#define PCRE_UTF8_ERR10             10
+#define PCRE_UTF8_ERR11             11
+#define PCRE_UTF8_ERR12             12
+#define PCRE_UTF8_ERR13             13
+#define PCRE_UTF8_ERR14             14
+#define PCRE_UTF8_ERR15             15
+#define PCRE_UTF8_ERR16             16
+#define PCRE_UTF8_ERR17             17
+#define PCRE_UTF8_ERR18             18
+#define PCRE_UTF8_ERR19             19
+#define PCRE_UTF8_ERR20             20
+#define PCRE_UTF8_ERR21             21
+
+/* Specific error codes for UTF-16 validity checks */
+
+#define PCRE_UTF16_ERR0              0
+#define PCRE_UTF16_ERR1              1
+#define PCRE_UTF16_ERR2              2
+#define PCRE_UTF16_ERR3              3
+#define PCRE_UTF16_ERR4              4
+
+/* Request types for pcre_fullinfo() */
+
+#define PCRE_INFO_OPTIONS            0
+#define PCRE_INFO_SIZE               1
+#define PCRE_INFO_CAPTURECOUNT       2
+#define PCRE_INFO_BACKREFMAX         3
+#define PCRE_INFO_FIRSTBYTE          4
+#define PCRE_INFO_FIRSTCHAR          4  /* For backwards compatibility */
+#define PCRE_INFO_FIRSTTABLE         5
+#define PCRE_INFO_LASTLITERAL        6
+#define PCRE_INFO_NAMEENTRYSIZE      7
+#define PCRE_INFO_NAMECOUNT          8
+#define PCRE_INFO_NAMETABLE          9
+#define PCRE_INFO_STUDYSIZE         10
+#define PCRE_INFO_DEFAULT_TABLES    11
+#define PCRE_INFO_OKPARTIAL         12
+#define PCRE_INFO_JCHANGED          13
+#define PCRE_INFO_HASCRORLF         14
+#define PCRE_INFO_MINLENGTH         15
+#define PCRE_INFO_JIT               16
+#define PCRE_INFO_JITSIZE           17
+#define PCRE_INFO_MAXLOOKBEHIND     18
+
+/* Request types for pcre_config(). Do not re-arrange, in order to remain
+compatible. */
+
+#define PCRE_CONFIG_UTF8                    0
+#define PCRE_CONFIG_NEWLINE                 1
+#define PCRE_CONFIG_LINK_SIZE               2
+#define PCRE_CONFIG_POSIX_MALLOC_THRESHOLD  3
+#define PCRE_CONFIG_MATCH_LIMIT             4
+#define PCRE_CONFIG_STACKRECURSE            5
+#define PCRE_CONFIG_UNICODE_PROPERTIES      6
+#define PCRE_CONFIG_MATCH_LIMIT_RECURSION   7
+#define PCRE_CONFIG_BSR                     8
+#define PCRE_CONFIG_JIT                     9
+#define PCRE_CONFIG_UTF16                  10
+#define PCRE_CONFIG_JITTARGET              11
+
+/* Request types for pcre_study(). Do not re-arrange, in order to remain
+compatible. */
+
+#define PCRE_STUDY_JIT_COMPILE                0x0001
+#define PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE   0x0002
+#define PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE   0x0004
+
+/* Bit flags for the pcre[16]_extra structure. Do not re-arrange or redefine
+these bits, just add new ones on the end, in order to remain compatible. */
+
+#define PCRE_EXTRA_STUDY_DATA             0x0001
+#define PCRE_EXTRA_MATCH_LIMIT            0x0002
+#define PCRE_EXTRA_CALLOUT_DATA           0x0004
+#define PCRE_EXTRA_TABLES                 0x0008
+#define PCRE_EXTRA_MATCH_LIMIT_RECURSION  0x0010
+#define PCRE_EXTRA_MARK                   0x0020
+#define PCRE_EXTRA_EXECUTABLE_JIT         0x0040
+
+/* Types */
+
+struct real_pcre;                 /* declaration; the definition is private  */
+typedef struct real_pcre pcre;
+
+struct real_pcre16;               /* declaration; the definition is private  */
+typedef struct real_pcre16 pcre16;
+
+struct real_pcre_jit_stack;       /* declaration; the definition is private  */
+typedef struct real_pcre_jit_stack pcre_jit_stack;
+
+struct real_pcre16_jit_stack;     /* declaration; the definition is private  */
+typedef struct real_pcre16_jit_stack pcre16_jit_stack;
+
+/* If PCRE is compiled with 16 bit character support, PCRE_UCHAR16 must contain
+a 16 bit wide signed data type. Otherwise it can be a dummy data type since
+pcre16 functions are not implemented. There is a check for this in pcre_internal.h. */
+#ifndef PCRE_UCHAR16
+#define PCRE_UCHAR16 unsigned short
+#endif
+
+#ifndef PCRE_SPTR16
+#define PCRE_SPTR16 const PCRE_UCHAR16 *
+#endif
+
+/* When PCRE is compiled as a C++ library, the subject pointer type can be
+replaced with a custom type. For conventional use, the public interface is a
+const char *. */
+
+#ifndef PCRE_SPTR
+#define PCRE_SPTR const char *
+#endif
+
+/* The structure for passing additional data to pcre_exec(). This is defined in
+such as way as to be extensible. Always add new fields at the end, in order to
+remain compatible. */
+
+typedef struct pcre_extra {
+  unsigned long int flags;        /* Bits for which fields are set */
+  void *study_data;               /* Opaque data from pcre_study() */
+  unsigned long int match_limit;  /* Maximum number of calls to match() */
+  void *callout_data;             /* Data passed back in callouts */
+  const unsigned char *tables;    /* Pointer to character tables */
+  unsigned long int match_limit_recursion; /* Max recursive calls to match() */
+  unsigned char **mark;           /* For passing back a mark pointer */
+  void *executable_jit;           /* Contains a pointer to a compiled jit code */
+} pcre_extra;
+
+/* Same structure as above, but with 16 bit char pointers. */
+
+typedef struct pcre16_extra {
+  unsigned long int flags;        /* Bits for which fields are set */
+  void *study_data;               /* Opaque data from pcre_study() */
+  unsigned long int match_limit;  /* Maximum number of calls to match() */
+  void *callout_data;             /* Data passed back in callouts */
+  const unsigned char *tables;    /* Pointer to character tables */
+  unsigned long int match_limit_recursion; /* Max recursive calls to match() */
+  PCRE_UCHAR16 **mark;            /* For passing back a mark pointer */
+  void *executable_jit;           /* Contains a pointer to a compiled jit code */
+} pcre16_extra;
+
+/* The structure for passing out data via the pcre_callout_function. We use a
+structure so that new fields can be added on the end in future versions,
+without changing the API of the function, thereby allowing old clients to work
+without modification. */
+
+typedef struct pcre_callout_block {
+  int          version;           /* Identifies version of block */
+  /* ------------------------ Version 0 ------------------------------- */
+  int          callout_number;    /* Number compiled into pattern */
+  int         *offset_vector;     /* The offset vector */
+  PCRE_SPTR    subject;           /* The subject being matched */
+  int          subject_length;    /* The length of the subject */
+  int          start_match;       /* Offset to start of this match attempt */
+  int          current_position;  /* Where we currently are in the subject */
+  int          capture_top;       /* Max current capture */
+  int          capture_last;      /* Most recently closed capture */
+  void        *callout_data;      /* Data passed in with the call */
+  /* ------------------- Added for Version 1 -------------------------- */
+  int          pattern_position;  /* Offset to next item in the pattern */
+  int          next_item_length;  /* Length of next item in the pattern */
+  /* ------------------- Added for Version 2 -------------------------- */
+  const unsigned char *mark;      /* Pointer to current mark or NULL    */
+  /* ------------------------------------------------------------------ */
+} pcre_callout_block;
+
+/* Same structure as above, but with 16 bit char pointers. */
+
+typedef struct pcre16_callout_block {
+  int          version;           /* Identifies version of block */
+  /* ------------------------ Version 0 ------------------------------- */
+  int          callout_number;    /* Number compiled into pattern */
+  int         *offset_vector;     /* The offset vector */
+  PCRE_SPTR16  subject;           /* The subject being matched */
+  int          subject_length;    /* The length of the subject */
+  int          start_match;       /* Offset to start of this match attempt */
+  int          current_position;  /* Where we currently are in the subject */
+  int          capture_top;       /* Max current capture */
+  int          capture_last;      /* Most recently closed capture */
+  void        *callout_data;      /* Data passed in with the call */
+  /* ------------------- Added for Version 1 -------------------------- */
+  int          pattern_position;  /* Offset to next item in the pattern */
+  int          next_item_length;  /* Length of next item in the pattern */
+  /* ------------------- Added for Version 2 -------------------------- */
+  const PCRE_UCHAR16 *mark;       /* Pointer to current mark or NULL    */
+  /* ------------------------------------------------------------------ */
+} pcre16_callout_block;
+
+/* Indirection for store get and free functions. These can be set to
+alternative malloc/free functions if required. Special ones are used in the
+non-recursive case for "frames". There is also an optional callout function
+that is triggered by the (?) regex item. For Virtual Pascal, these definitions
+have to take another form. */
+
+#ifndef VPCOMPAT
+PCRE_EXP_DECL void *(*pcre_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre_free)(void *);
+PCRE_EXP_DECL void *(*pcre_stack_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre_stack_free)(void *);
+PCRE_EXP_DECL int   (*pcre_callout)(pcre_callout_block *);
+
+PCRE_EXP_DECL void *(*pcre16_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre16_free)(void *);
+PCRE_EXP_DECL void *(*pcre16_stack_malloc)(size_t);
+PCRE_EXP_DECL void  (*pcre16_stack_free)(void *);
+PCRE_EXP_DECL int   (*pcre16_callout)(pcre16_callout_block *);
+#else   /* VPCOMPAT */
+PCRE_EXP_DECL void *pcre_malloc(size_t);
+PCRE_EXP_DECL void  pcre_free(void *);
+PCRE_EXP_DECL void *pcre_stack_malloc(size_t);
+PCRE_EXP_DECL void  pcre_stack_free(void *);
+PCRE_EXP_DECL int   pcre_callout(pcre_callout_block *);
+
+PCRE_EXP_DECL void *pcre16_malloc(size_t);
+PCRE_EXP_DECL void  pcre16_free(void *);
+PCRE_EXP_DECL void *pcre16_stack_malloc(size_t);
+PCRE_EXP_DECL void  pcre16_stack_free(void *);
+PCRE_EXP_DECL int   pcre16_callout(pcre16_callout_block *);
+#endif  /* VPCOMPAT */
+
+/* User defined callback which provides a stack just before the match starts. */
+
+typedef pcre_jit_stack *(*pcre_jit_callback)(void *);
+typedef pcre16_jit_stack *(*pcre16_jit_callback)(void *);
+
+/* Exported PCRE functions */
+
+PCRE_EXP_DECL pcre *pcre_compile(const char *, int, const char **, int *,
+                  const unsigned char *);
+PCRE_EXP_DECL pcre16 *pcre16_compile(PCRE_SPTR16, int, const char **, int *,
+                  const unsigned char *);
+PCRE_EXP_DECL pcre *pcre_compile2(const char *, int, int *, const char **,
+                  int *, const unsigned char *);
+PCRE_EXP_DECL pcre16 *pcre16_compile2(PCRE_SPTR16, int, int *, const char **,
+                  int *, const unsigned char *);
+PCRE_EXP_DECL int  pcre_config(int, void *);
+PCRE_EXP_DECL int  pcre16_config(int, void *);
+PCRE_EXP_DECL int  pcre_copy_named_substring(const pcre *, const char *,
+                  int *, int, const char *, char *, int);
+PCRE_EXP_DECL int  pcre16_copy_named_substring(const pcre16 *, PCRE_SPTR16,
+                  int *, int, PCRE_SPTR16, PCRE_UCHAR16 *, int);
+PCRE_EXP_DECL int  pcre_copy_substring(const char *, int *, int, int,
+                  char *, int);
+PCRE_EXP_DECL int  pcre16_copy_substring(PCRE_SPTR16, int *, int, int,
+                  PCRE_UCHAR16 *, int);
+PCRE_EXP_DECL int  pcre_dfa_exec(const pcre *, const pcre_extra *,
+                  const char *, int, int, int, int *, int , int *, int);
+PCRE_EXP_DECL int  pcre16_dfa_exec(const pcre16 *, const pcre16_extra *,
+                  PCRE_SPTR16, int, int, int, int *, int , int *, int);
+PCRE_EXP_DECL int  pcre_exec(const pcre *, const pcre_extra *, PCRE_SPTR,
+                   int, int, int, int *, int);
+PCRE_EXP_DECL int  pcre16_exec(const pcre16 *, const pcre16_extra *,
+                   PCRE_SPTR16, int, int, int, int *, int);
+PCRE_EXP_DECL void pcre_free_substring(const char *);
+PCRE_EXP_DECL void pcre16_free_substring(PCRE_SPTR16);
+PCRE_EXP_DECL void pcre_free_substring_list(const char **);
+PCRE_EXP_DECL void pcre16_free_substring_list(PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_fullinfo(const pcre *, const pcre_extra *, int,
+                  void *);
+PCRE_EXP_DECL int  pcre16_fullinfo(const pcre16 *, const pcre16_extra *, int,
+                  void *);
+PCRE_EXP_DECL int  pcre_get_named_substring(const pcre *, const char *,
+                  int *, int, const char *, const char **);
+PCRE_EXP_DECL int  pcre16_get_named_substring(const pcre16 *, PCRE_SPTR16,
+                  int *, int, PCRE_SPTR16, PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_get_stringnumber(const pcre *, const char *);
+PCRE_EXP_DECL int  pcre16_get_stringnumber(const pcre16 *, PCRE_SPTR16);
+PCRE_EXP_DECL int  pcre_get_stringtable_entries(const pcre *, const char *,
+                  char **, char **);
+PCRE_EXP_DECL int  pcre16_get_stringtable_entries(const pcre16 *, PCRE_SPTR16,
+                  PCRE_UCHAR16 **, PCRE_UCHAR16 **);
+PCRE_EXP_DECL int  pcre_get_substring(const char *, int *, int, int,
+                  const char **);
+PCRE_EXP_DECL int  pcre16_get_substring(PCRE_SPTR16, int *, int, int,
+                  PCRE_SPTR16 *);
+PCRE_EXP_DECL int  pcre_get_substring_list(const char *, int *, int,
+                  const char ***);
+PCRE_EXP_DECL int  pcre16_get_substring_list(PCRE_SPTR16, int *, int,
+                  PCRE_SPTR16 **);
+PCRE_EXP_DECL const unsigned char *pcre_maketables(void);
+PCRE_EXP_DECL const unsigned char *pcre16_maketables(void);
+PCRE_EXP_DECL int  pcre_refcount(pcre *, int);
+PCRE_EXP_DECL int  pcre16_refcount(pcre16 *, int);
+PCRE_EXP_DECL pcre_extra *pcre_study(const pcre *, int, const char **);
+PCRE_EXP_DECL pcre16_extra *pcre16_study(const pcre16 *, int, const char **);
+PCRE_EXP_DECL void pcre_free_study(pcre_extra *);
+PCRE_EXP_DECL void pcre16_free_study(pcre16_extra *);
+PCRE_EXP_DECL const char *pcre_version(void);
+PCRE_EXP_DECL const char *pcre16_version(void);
+
+/* Utility functions for byte order swaps. */
+PCRE_EXP_DECL int  pcre_pattern_to_host_byte_order(pcre *, pcre_extra *,
+                  const unsigned char *);
+PCRE_EXP_DECL int  pcre16_pattern_to_host_byte_order(pcre16 *, pcre16_extra *,
+                  const unsigned char *);
+PCRE_EXP_DECL int  pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *,
+                  PCRE_SPTR16, int, int *, int);
+
+/* JIT compiler related functions. */
+
+PCRE_EXP_DECL pcre_jit_stack *pcre_jit_stack_alloc(int, int);
+PCRE_EXP_DECL pcre16_jit_stack *pcre16_jit_stack_alloc(int, int);
+PCRE_EXP_DECL void pcre_jit_stack_free(pcre_jit_stack *);
+PCRE_EXP_DECL void pcre16_jit_stack_free(pcre16_jit_stack *);
+PCRE_EXP_DECL void pcre_assign_jit_stack(pcre_extra *,
+                  pcre_jit_callback, void *);
+PCRE_EXP_DECL void pcre16_assign_jit_stack(pcre16_extra *,
+                  pcre16_jit_callback, void *);
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* End of pcre.h */
diff --git a/8.31/pcre_byte_order.c b/8.31/pcre_byte_order.c
new file mode 100644
index 0000000..6ac8325
--- /dev/null
+++ b/8.31/pcre_byte_order.c
@@ -0,0 +1,288 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains an internal function that tests a compiled pattern to
+see if it was compiled with the opposite endianness. If so, it uses an
+auxiliary local function to flip the appropriate bytes. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+*             Swap byte functions                *
+*************************************************/
+
+/* The following functions swap the bytes of a pcre_uint16
+and pcre_uint32 value.
+
+Arguments:
+  value        any number
+
+Returns:       the byte swapped value
+*/
+
+static pcre_uint32
+swap_uint32(pcre_uint32 value)
+{
+return ((value & 0x000000ff) << 24) |
+       ((value & 0x0000ff00) <<  8) |
+       ((value & 0x00ff0000) >>  8) |
+       (value >> 24);
+}
+
+static pcre_uint16
+swap_uint16(pcre_uint16 value)
+{
+return (value >> 8) | (value << 8);
+}
+
+
+/*************************************************
+*       Test for a byte-flipped compiled regex   *
+*************************************************/
+
+/* This function swaps the bytes of a compiled pattern usually
+loaded form the disk. It also sets the tables pointer, which
+is likely an invalid pointer after reload.
+
+Arguments:
+  argument_re     points to the compiled expression
+  extra_data      points to extra data or is NULL
+  tables          points to the character tables or NULL
+
+Returns:          0 if the swap is successful, negative on error
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DECL int pcre_pattern_to_host_byte_order(pcre *argument_re,
+  pcre_extra *extra_data, const unsigned char *tables)
+#else
+PCRE_EXP_DECL int pcre16_pattern_to_host_byte_order(pcre16 *argument_re,
+  pcre16_extra *extra_data, const unsigned char *tables)
+#endif
+{
+REAL_PCRE *re = (REAL_PCRE *)argument_re;
+pcre_study_data *study;
+#ifndef COMPILE_PCRE8
+pcre_uchar *ptr;
+int length;
+#ifdef SUPPORT_UTF
+BOOL utf;
+BOOL utf16_char;
+#endif /* SUPPORT_UTF */
+#endif /* !COMPILE_PCRE8 */
+
+if (re == NULL) return PCRE_ERROR_NULL;
+if (re->magic_number == MAGIC_NUMBER)
+  {
+  if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
+  re->tables = tables;
+  return 0;
+  }
+
+if (re->magic_number != REVERSED_MAGIC_NUMBER) return PCRE_ERROR_BADMAGIC;
+if ((swap_uint16(re->flags) & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
+
+re->magic_number = MAGIC_NUMBER;
+re->size = swap_uint32(re->size);
+re->options = swap_uint32(re->options);
+re->flags = swap_uint16(re->flags);
+re->top_bracket = swap_uint16(re->top_bracket);
+re->top_backref = swap_uint16(re->top_backref);
+re->first_char = swap_uint16(re->first_char);
+re->req_char = swap_uint16(re->req_char);
+re->name_table_offset = swap_uint16(re->name_table_offset);
+re->name_entry_size = swap_uint16(re->name_entry_size);
+re->name_count = swap_uint16(re->name_count);
+re->ref_count = swap_uint16(re->ref_count);
+re->tables = tables;
+
+if (extra_data != NULL && (extra_data->flags & PCRE_EXTRA_STUDY_DATA) != 0)
+  {
+  study = (pcre_study_data *)extra_data->study_data;
+  study->size = swap_uint32(study->size);
+  study->flags = swap_uint32(study->flags);
+  study->minlength = swap_uint32(study->minlength);
+  }
+
+#ifndef COMPILE_PCRE8
+ptr = (pcre_uchar *)re + re->name_table_offset;
+length = re->name_count * re->name_entry_size;
+#ifdef SUPPORT_UTF
+utf = (re->options & PCRE_UTF16) != 0;
+utf16_char = FALSE;
+#endif
+
+while(TRUE)
+  {
+  /* Swap previous characters. */
+  while (length-- > 0)
+    {
+    *ptr = swap_uint16(*ptr);
+    ptr++;
+    }
+#ifdef SUPPORT_UTF
+  if (utf16_char)
+    {
+    if (HAS_EXTRALEN(ptr[-1]))
+      {
+      /* We know that there is only one extra character in UTF-16. */
+      *ptr = swap_uint16(*ptr);
+      ptr++;
+      }
+    }
+  utf16_char = FALSE;
+#endif /* SUPPORT_UTF */
+
+  /* Get next opcode. */
+  length = 0;
+  *ptr = swap_uint16(*ptr);
+  switch (*ptr)
+    {
+    case OP_END:
+    return 0;
+
+#ifdef SUPPORT_UTF
+    case OP_CHAR:
+    case OP_CHARI:
+    case OP_NOT:
+    case OP_NOTI:
+    case OP_STAR:
+    case OP_MINSTAR:
+    case OP_PLUS:
+    case OP_MINPLUS:
+    case OP_QUERY:
+    case OP_MINQUERY:
+    case OP_UPTO:
+    case OP_MINUPTO:
+    case OP_EXACT:
+    case OP_POSSTAR:
+    case OP_POSPLUS:
+    case OP_POSQUERY:
+    case OP_POSUPTO:
+    case OP_STARI:
+    case OP_MINSTARI:
+    case OP_PLUSI:
+    case OP_MINPLUSI:
+    case OP_QUERYI:
+    case OP_MINQUERYI:
+    case OP_UPTOI:
+    case OP_MINUPTOI:
+    case OP_EXACTI:
+    case OP_POSSTARI:
+    case OP_POSPLUSI:
+    case OP_POSQUERYI:
+    case OP_POSUPTOI:
+    case OP_NOTSTAR:
+    case OP_NOTMINSTAR:
+    case OP_NOTPLUS:
+    case OP_NOTMINPLUS:
+    case OP_NOTQUERY:
+    case OP_NOTMINQUERY:
+    case OP_NOTUPTO:
+    case OP_NOTMINUPTO:
+    case OP_NOTEXACT:
+    case OP_NOTPOSSTAR:
+    case OP_NOTPOSPLUS:
+    case OP_NOTPOSQUERY:
+    case OP_NOTPOSUPTO:
+    case OP_NOTSTARI:
+    case OP_NOTMINSTARI:
+    case OP_NOTPLUSI:
+    case OP_NOTMINPLUSI:
+    case OP_NOTQUERYI:
+    case OP_NOTMINQUERYI:
+    case OP_NOTUPTOI:
+    case OP_NOTMINUPTOI:
+    case OP_NOTEXACTI:
+    case OP_NOTPOSSTARI:
+    case OP_NOTPOSPLUSI:
+    case OP_NOTPOSQUERYI:
+    case OP_NOTPOSUPTOI:
+    if (utf) utf16_char = TRUE;
+#endif
+    /* Fall through. */
+
+    default:
+    length = PRIV(OP_lengths)[*ptr] - 1;
+    break;
+
+    case OP_CLASS:
+    case OP_NCLASS:
+    /* Skip the character bit map. */
+    ptr += 32/sizeof(pcre_uchar);
+    length = 0;
+    break;
+
+    case OP_XCLASS:
+    /* Reverse the size of the XCLASS instance. */
+    ptr++;
+    *ptr = swap_uint16(*ptr);
+    if (LINK_SIZE > 1)
+      {
+      /* LINK_SIZE can be 1 or 2 in 16 bit mode. */
+      ptr++;
+      *ptr = swap_uint16(*ptr);
+      }
+    ptr++;
+    length = (GET(ptr, -LINK_SIZE)) - (1 + LINK_SIZE + 1);
+    *ptr = swap_uint16(*ptr);
+    if ((*ptr & XCL_MAP) != 0)
+      {
+      /* Skip the character bit map. */
+      ptr += 32/sizeof(pcre_uchar);
+      length -= 32/sizeof(pcre_uchar);
+      }
+    break;
+    }
+  ptr++;
+  }
+/* Control should never reach here in 16 bit mode. */
+#endif /* !COMPILE_PCRE8 */
+
+return 0;
+}
+
+/* End of pcre_byte_order.c */
diff --git a/8.31/pcre_chartables.c b/8.31/pcre_chartables.c
new file mode 100644
index 0000000..2a39e9f
--- /dev/null
+++ b/8.31/pcre_chartables.c
@@ -0,0 +1,198 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* This file contains character tables that are used when no external tables
+are passed to PCRE by the application that calls it. The tables are used only
+for characters whose code values are less than 256.
+
+This is a default version of the tables that assumes ASCII encoding. A program
+called dftables (which is distributed with PCRE) can be used to build
+alternative versions of this file. This is necessary if you are running in an
+EBCDIC environment, or if you want to default to a different encoding, for
+example ISO-8859-1. When dftables is run, it creates these tables in the
+current locale. If PCRE is configured with --enable-rebuild-chartables, this
+happens automatically.
+
+The following #includes are present because without them gcc 4.x may remove the
+array definition from the final binary if PCRE is built into a static library
+and dead code stripping is activated. This leads to link errors. Pulling in the
+header ensures that the array gets flagged as "someone outside this compilation
+unit might reference this" and so it will always be supplied to the linker. */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+const pcre_uint8 PRIV(default_tables)[] = {
+
+/* This table is a lower casing table. */
+
+    0,  1,  2,  3,  4,  5,  6,  7,
+    8,  9, 10, 11, 12, 13, 14, 15,
+   16, 17, 18, 19, 20, 21, 22, 23,
+   24, 25, 26, 27, 28, 29, 30, 31,
+   32, 33, 34, 35, 36, 37, 38, 39,
+   40, 41, 42, 43, 44, 45, 46, 47,
+   48, 49, 50, 51, 52, 53, 54, 55,
+   56, 57, 58, 59, 60, 61, 62, 63,
+   64, 97, 98, 99,100,101,102,103,
+  104,105,106,107,108,109,110,111,
+  112,113,114,115,116,117,118,119,
+  120,121,122, 91, 92, 93, 94, 95,
+   96, 97, 98, 99,100,101,102,103,
+  104,105,106,107,108,109,110,111,
+  112,113,114,115,116,117,118,119,
+  120,121,122,123,124,125,126,127,
+  128,129,130,131,132,133,134,135,
+  136,137,138,139,140,141,142,143,
+  144,145,146,147,148,149,150,151,
+  152,153,154,155,156,157,158,159,
+  160,161,162,163,164,165,166,167,
+  168,169,170,171,172,173,174,175,
+  176,177,178,179,180,181,182,183,
+  184,185,186,187,188,189,190,191,
+  192,193,194,195,196,197,198,199,
+  200,201,202,203,204,205,206,207,
+  208,209,210,211,212,213,214,215,
+  216,217,218,219,220,221,222,223,
+  224,225,226,227,228,229,230,231,
+  232,233,234,235,236,237,238,239,
+  240,241,242,243,244,245,246,247,
+  248,249,250,251,252,253,254,255,
+
+/* This table is a case flipping table. */
+
+    0,  1,  2,  3,  4,  5,  6,  7,
+    8,  9, 10, 11, 12, 13, 14, 15,
+   16, 17, 18, 19, 20, 21, 22, 23,
+   24, 25, 26, 27, 28, 29, 30, 31,
+   32, 33, 34, 35, 36, 37, 38, 39,
+   40, 41, 42, 43, 44, 45, 46, 47,
+   48, 49, 50, 51, 52, 53, 54, 55,
+   56, 57, 58, 59, 60, 61, 62, 63,
+   64, 97, 98, 99,100,101,102,103,
+  104,105,106,107,108,109,110,111,
+  112,113,114,115,116,117,118,119,
+  120,121,122, 91, 92, 93, 94, 95,
+   96, 65, 66, 67, 68, 69, 70, 71,
+   72, 73, 74, 75, 76, 77, 78, 79,
+   80, 81, 82, 83, 84, 85, 86, 87,
+   88, 89, 90,123,124,125,126,127,
+  128,129,130,131,132,133,134,135,
+  136,137,138,139,140,141,142,143,
+  144,145,146,147,148,149,150,151,
+  152,153,154,155,156,157,158,159,
+  160,161,162,163,164,165,166,167,
+  168,169,170,171,172,173,174,175,
+  176,177,178,179,180,181,182,183,
+  184,185,186,187,188,189,190,191,
+  192,193,194,195,196,197,198,199,
+  200,201,202,203,204,205,206,207,
+  208,209,210,211,212,213,214,215,
+  216,217,218,219,220,221,222,223,
+  224,225,226,227,228,229,230,231,
+  232,233,234,235,236,237,238,239,
+  240,241,242,243,244,245,246,247,
+  248,249,250,251,252,253,254,255,
+
+/* This table contains bit maps for various character classes. Each map is 32
+bytes long and the bits run from the least significant end of each byte. The
+classes that have their own maps are: space, xdigit, digit, upper, lower, word,
+graph, print, punct, and cntrl. Other classes are built from combinations. */
+
+  0x00,0x3e,0x00,0x00,0x01,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
+  0x7e,0x00,0x00,0x00,0x7e,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0xfe,0xff,0xff,0x07,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0xfe,0xff,0xff,0x07,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
+  0xfe,0xff,0xff,0x87,0xfe,0xff,0xff,0x07,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0xfe,0xff,0xff,0xff,
+  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,
+  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0xfe,0xff,0x00,0xfc,
+  0x01,0x00,0x00,0xf8,0x01,0x00,0x00,0x78,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+/* This table identifies various classes of character by individual bits:
+  0x01   white space character
+  0x02   letter
+  0x04   decimal digit
+  0x08   hexadecimal digit
+  0x10   alphanumeric or '_'
+  0x80   regular expression metacharacter or binary zero
+*/
+
+  0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*   0-  7 */
+  0x00,0x01,0x01,0x00,0x01,0x01,0x00,0x00, /*   8- 15 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  16- 23 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  24- 31 */
+  0x01,0x00,0x00,0x00,0x80,0x00,0x00,0x00, /*    - '  */
+  0x80,0x80,0x80,0x80,0x00,0x00,0x80,0x00, /*  ( - /  */
+  0x1c,0x1c,0x1c,0x1c,0x1c,0x1c,0x1c,0x1c, /*  0 - 7  */
+  0x1c,0x1c,0x00,0x00,0x00,0x00,0x00,0x80, /*  8 - ?  */
+  0x00,0x1a,0x1a,0x1a,0x1a,0x1a,0x1a,0x12, /*  @ - G  */
+  0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  H - O  */
+  0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  P - W  */
+  0x12,0x12,0x12,0x80,0x80,0x00,0x80,0x10, /*  X - _  */
+  0x00,0x1a,0x1a,0x1a,0x1a,0x1a,0x1a,0x12, /*  ` - g  */
+  0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  h - o  */
+  0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  p - w  */
+  0x12,0x12,0x12,0x80,0x80,0x00,0x00,0x00, /*  x -127 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 128-135 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 136-143 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 144-151 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 152-159 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 160-167 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 168-175 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 176-183 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 184-191 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 192-199 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 200-207 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 208-215 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 216-223 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 224-231 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 232-239 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 240-247 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};/* 248-255 */
+
+/* End of pcre_chartables.c */
diff --git a/8.31/pcre_chartables.c.dist b/8.31/pcre_chartables.c.dist
new file mode 100644
index 0000000..2a39e9f
--- /dev/null
+++ b/8.31/pcre_chartables.c.dist
@@ -0,0 +1,198 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* This file contains character tables that are used when no external tables
+are passed to PCRE by the application that calls it. The tables are used only
+for characters whose code values are less than 256.
+
+This is a default version of the tables that assumes ASCII encoding. A program
+called dftables (which is distributed with PCRE) can be used to build
+alternative versions of this file. This is necessary if you are running in an
+EBCDIC environment, or if you want to default to a different encoding, for
+example ISO-8859-1. When dftables is run, it creates these tables in the
+current locale. If PCRE is configured with --enable-rebuild-chartables, this
+happens automatically.
+
+The following #includes are present because without them gcc 4.x may remove the
+array definition from the final binary if PCRE is built into a static library
+and dead code stripping is activated. This leads to link errors. Pulling in the
+header ensures that the array gets flagged as "someone outside this compilation
+unit might reference this" and so it will always be supplied to the linker. */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+const pcre_uint8 PRIV(default_tables)[] = {
+
+/* This table is a lower casing table. */
+
+    0,  1,  2,  3,  4,  5,  6,  7,
+    8,  9, 10, 11, 12, 13, 14, 15,
+   16, 17, 18, 19, 20, 21, 22, 23,
+   24, 25, 26, 27, 28, 29, 30, 31,
+   32, 33, 34, 35, 36, 37, 38, 39,
+   40, 41, 42, 43, 44, 45, 46, 47,
+   48, 49, 50, 51, 52, 53, 54, 55,
+   56, 57, 58, 59, 60, 61, 62, 63,
+   64, 97, 98, 99,100,101,102,103,
+  104,105,106,107,108,109,110,111,
+  112,113,114,115,116,117,118,119,
+  120,121,122, 91, 92, 93, 94, 95,
+   96, 97, 98, 99,100,101,102,103,
+  104,105,106,107,108,109,110,111,
+  112,113,114,115,116,117,118,119,
+  120,121,122,123,124,125,126,127,
+  128,129,130,131,132,133,134,135,
+  136,137,138,139,140,141,142,143,
+  144,145,146,147,148,149,150,151,
+  152,153,154,155,156,157,158,159,
+  160,161,162,163,164,165,166,167,
+  168,169,170,171,172,173,174,175,
+  176,177,178,179,180,181,182,183,
+  184,185,186,187,188,189,190,191,
+  192,193,194,195,196,197,198,199,
+  200,201,202,203,204,205,206,207,
+  208,209,210,211,212,213,214,215,
+  216,217,218,219,220,221,222,223,
+  224,225,226,227,228,229,230,231,
+  232,233,234,235,236,237,238,239,
+  240,241,242,243,244,245,246,247,
+  248,249,250,251,252,253,254,255,
+
+/* This table is a case flipping table. */
+
+    0,  1,  2,  3,  4,  5,  6,  7,
+    8,  9, 10, 11, 12, 13, 14, 15,
+   16, 17, 18, 19, 20, 21, 22, 23,
+   24, 25, 26, 27, 28, 29, 30, 31,
+   32, 33, 34, 35, 36, 37, 38, 39,
+   40, 41, 42, 43, 44, 45, 46, 47,
+   48, 49, 50, 51, 52, 53, 54, 55,
+   56, 57, 58, 59, 60, 61, 62, 63,
+   64, 97, 98, 99,100,101,102,103,
+  104,105,106,107,108,109,110,111,
+  112,113,114,115,116,117,118,119,
+  120,121,122, 91, 92, 93, 94, 95,
+   96, 65, 66, 67, 68, 69, 70, 71,
+   72, 73, 74, 75, 76, 77, 78, 79,
+   80, 81, 82, 83, 84, 85, 86, 87,
+   88, 89, 90,123,124,125,126,127,
+  128,129,130,131,132,133,134,135,
+  136,137,138,139,140,141,142,143,
+  144,145,146,147,148,149,150,151,
+  152,153,154,155,156,157,158,159,
+  160,161,162,163,164,165,166,167,
+  168,169,170,171,172,173,174,175,
+  176,177,178,179,180,181,182,183,
+  184,185,186,187,188,189,190,191,
+  192,193,194,195,196,197,198,199,
+  200,201,202,203,204,205,206,207,
+  208,209,210,211,212,213,214,215,
+  216,217,218,219,220,221,222,223,
+  224,225,226,227,228,229,230,231,
+  232,233,234,235,236,237,238,239,
+  240,241,242,243,244,245,246,247,
+  248,249,250,251,252,253,254,255,
+
+/* This table contains bit maps for various character classes. Each map is 32
+bytes long and the bits run from the least significant end of each byte. The
+classes that have their own maps are: space, xdigit, digit, upper, lower, word,
+graph, print, punct, and cntrl. Other classes are built from combinations. */
+
+  0x00,0x3e,0x00,0x00,0x01,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
+  0x7e,0x00,0x00,0x00,0x7e,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0xfe,0xff,0xff,0x07,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0xfe,0xff,0xff,0x07,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x03,
+  0xfe,0xff,0xff,0x87,0xfe,0xff,0xff,0x07,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0xfe,0xff,0xff,0xff,
+  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,
+  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0x00,0x00,0x00,0x00,0xfe,0xff,0x00,0xfc,
+  0x01,0x00,0x00,0xf8,0x01,0x00,0x00,0x78,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+  0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+
+/* This table identifies various classes of character by individual bits:
+  0x01   white space character
+  0x02   letter
+  0x04   decimal digit
+  0x08   hexadecimal digit
+  0x10   alphanumeric or '_'
+  0x80   regular expression metacharacter or binary zero
+*/
+
+  0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*   0-  7 */
+  0x00,0x01,0x01,0x00,0x01,0x01,0x00,0x00, /*   8- 15 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  16- 23 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  24- 31 */
+  0x01,0x00,0x00,0x00,0x80,0x00,0x00,0x00, /*    - '  */
+  0x80,0x80,0x80,0x80,0x00,0x00,0x80,0x00, /*  ( - /  */
+  0x1c,0x1c,0x1c,0x1c,0x1c,0x1c,0x1c,0x1c, /*  0 - 7  */
+  0x1c,0x1c,0x00,0x00,0x00,0x00,0x00,0x80, /*  8 - ?  */
+  0x00,0x1a,0x1a,0x1a,0x1a,0x1a,0x1a,0x12, /*  @ - G  */
+  0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  H - O  */
+  0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  P - W  */
+  0x12,0x12,0x12,0x80,0x80,0x00,0x80,0x10, /*  X - _  */
+  0x00,0x1a,0x1a,0x1a,0x1a,0x1a,0x1a,0x12, /*  ` - g  */
+  0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  h - o  */
+  0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  p - w  */
+  0x12,0x12,0x12,0x80,0x80,0x00,0x00,0x00, /*  x -127 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 128-135 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 136-143 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 144-151 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 152-159 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 160-167 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 168-175 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 176-183 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 184-191 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 192-199 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 200-207 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 208-215 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 216-223 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 224-231 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 232-239 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 240-247 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};/* 248-255 */
+
+/* End of pcre_chartables.c */
diff --git a/8.31/pcre_compile.c b/8.31/pcre_compile.c
new file mode 100644
index 0000000..1ffa2c5
--- /dev/null
+++ b/8.31/pcre_compile.c
@@ -0,0 +1,8209 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains the external function pcre_compile(), along with
+supporting internal functions that are not used by other modules. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#define NLBLOCK cd             /* Block containing newline information */
+#define PSSTART start_pattern  /* Field containing processed string start */
+#define PSEND   end_pattern    /* Field containing processed string end */
+
+#include "pcre_internal.h"
+
+
+/* When PCRE_DEBUG is defined, we need the pcre(16)_printint() function, which
+is also used by pcretest. PCRE_DEBUG is not defined when building a production
+library. We do not need to select pcre16_printint.c specially, because the
+COMPILE_PCREx macro will already be appropriately set. */
+
+#ifdef PCRE_DEBUG
+/* pcre_printint.c should not include any headers */
+#define PCRE_INCLUDED
+#include "pcre_printint.c"
+#undef PCRE_INCLUDED
+#endif
+
+
+/* Macro for setting individual bits in class bitmaps. */
+
+#define SETBIT(a,b) a[b/8] |= (1 << (b%8))
+
+/* Maximum length value to check against when making sure that the integer that
+holds the compiled pattern length does not overflow. We make it a bit less than
+INT_MAX to allow for adding in group terminating bytes, so that we don't have
+to check them every time. */
+
+#define OFLOW_MAX (INT_MAX - 20)
+
+
+/*************************************************
+*      Code parameters and static tables         *
+*************************************************/
+
+/* This value specifies the size of stack workspace that is used during the
+first pre-compile phase that determines how much memory is required. The regex
+is partly compiled into this space, but the compiled parts are discarded as
+soon as they can be, so that hopefully there will never be an overrun. The code
+does, however, check for an overrun. The largest amount I've seen used is 218,
+so this number is very generous.
+
+The same workspace is used during the second, actual compile phase for
+remembering forward references to groups so that they can be filled in at the
+end. Each entry in this list occupies LINK_SIZE bytes, so even when LINK_SIZE
+is 4 there is plenty of room for most patterns. However, the memory can get
+filled up by repetitions of forward references, for example patterns like
+/(?1){0,1999}(b)/, and one user did hit the limit. The code has been changed so
+that the workspace is expanded using malloc() in this situation. The value
+below is therefore a minimum, and we put a maximum on it for safety. The
+minimum is now also defined in terms of LINK_SIZE so that the use of malloc()
+kicks in at the same number of forward references in all cases. */
+
+#define COMPILE_WORK_SIZE (2048*LINK_SIZE)
+#define COMPILE_WORK_SIZE_MAX (100*COMPILE_WORK_SIZE)
+
+/* The overrun tests check for a slightly smaller size so that they detect the
+overrun before it actually does run off the end of the data block. */
+
+#define WORK_SIZE_SAFETY_MARGIN (100)
+
+/* Private flags added to firstchar and reqchar. */
+
+#define REQ_CASELESS   0x10000000l      /* Indicates caselessness */
+#define REQ_VARY       0x20000000l      /* Reqchar followed non-literal item */
+
+/* Repeated character flags. */
+
+#define UTF_LENGTH     0x10000000l      /* The char contains its length. */
+
+/* Table for handling escaped characters in the range '0'-'z'. Positive returns
+are simple data values; negative values are for special things like \d and so
+on. Zero means further processing is needed (for things like \x), or the escape
+is invalid. */
+
+#ifndef EBCDIC
+
+/* This is the "normal" table for ASCII systems or for EBCDIC systems running
+in UTF-8 mode. */
+
+static const short int escapes[] = {
+     0,                       0,
+     0,                       0,
+     0,                       0,
+     0,                       0,
+     0,                       0,
+     CHAR_COLON,              CHAR_SEMICOLON,
+     CHAR_LESS_THAN_SIGN,     CHAR_EQUALS_SIGN,
+     CHAR_GREATER_THAN_SIGN,  CHAR_QUESTION_MARK,
+     CHAR_COMMERCIAL_AT,      -ESC_A,
+     -ESC_B,                  -ESC_C,
+     -ESC_D,                  -ESC_E,
+     0,                       -ESC_G,
+     -ESC_H,                  0,
+     0,                       -ESC_K,
+     0,                       0,
+     -ESC_N,                  0,
+     -ESC_P,                  -ESC_Q,
+     -ESC_R,                  -ESC_S,
+     0,                       0,
+     -ESC_V,                  -ESC_W,
+     -ESC_X,                  0,
+     -ESC_Z,                  CHAR_LEFT_SQUARE_BRACKET,
+     CHAR_BACKSLASH,          CHAR_RIGHT_SQUARE_BRACKET,
+     CHAR_CIRCUMFLEX_ACCENT,  CHAR_UNDERSCORE,
+     CHAR_GRAVE_ACCENT,       7,
+     -ESC_b,                  0,
+     -ESC_d,                  ESC_e,
+     ESC_f,                   0,
+     -ESC_h,                  0,
+     0,                       -ESC_k,
+     0,                       0,
+     ESC_n,                   0,
+     -ESC_p,                  0,
+     ESC_r,                   -ESC_s,
+     ESC_tee,                 0,
+     -ESC_v,                  -ESC_w,
+     0,                       0,
+     -ESC_z
+};
+
+#else
+
+/* This is the "abnormal" table for EBCDIC systems without UTF-8 support. */
+
+static const short int escapes[] = {
+/*  48 */     0,     0,      0,     '.',    '<',   '(',    '+',    '|',
+/*  50 */   '&',     0,      0,       0,      0,     0,      0,      0,
+/*  58 */     0,     0,    '!',     '$',    '*',   ')',    ';',    '~',
+/*  60 */   '-',   '/',      0,       0,      0,     0,      0,      0,
+/*  68 */     0,     0,    '|',     ',',    '%',   '_',    '>',    '?',
+/*  70 */     0,     0,      0,       0,      0,     0,      0,      0,
+/*  78 */     0,   '`',    ':',     '#',    '@',  '\'',    '=',    '"',
+/*  80 */     0,     7, -ESC_b,       0, -ESC_d, ESC_e,  ESC_f,      0,
+/*  88 */-ESC_h,     0,      0,     '{',      0,     0,      0,      0,
+/*  90 */     0,     0, -ESC_k,     'l',      0, ESC_n,      0, -ESC_p,
+/*  98 */     0, ESC_r,      0,     '}',      0,     0,      0,      0,
+/*  A0 */     0,   '~', -ESC_s, ESC_tee,      0,-ESC_v, -ESC_w,      0,
+/*  A8 */     0,-ESC_z,      0,       0,      0,   '[',      0,      0,
+/*  B0 */     0,     0,      0,       0,      0,     0,      0,      0,
+/*  B8 */     0,     0,      0,       0,      0,   ']',    '=',    '-',
+/*  C0 */   '{',-ESC_A, -ESC_B,  -ESC_C, -ESC_D,-ESC_E,      0, -ESC_G,
+/*  C8 */-ESC_H,     0,      0,       0,      0,     0,      0,      0,
+/*  D0 */   '}',     0, -ESC_K,       0,      0,-ESC_N,      0, -ESC_P,
+/*  D8 */-ESC_Q,-ESC_R,      0,       0,      0,     0,      0,      0,
+/*  E0 */  '\\',     0, -ESC_S,       0,      0,-ESC_V, -ESC_W, -ESC_X,
+/*  E8 */     0,-ESC_Z,      0,       0,      0,     0,      0,      0,
+/*  F0 */     0,     0,      0,       0,      0,     0,      0,      0,
+/*  F8 */     0,     0,      0,       0,      0,     0,      0,      0
+};
+#endif
+
+
+/* Table of special "verbs" like (*PRUNE). This is a short table, so it is
+searched linearly. Put all the names into a single string, in order to reduce
+the number of relocations when a shared library is dynamically linked. The
+string is built from string macros so that it works in UTF-8 mode on EBCDIC
+platforms. */
+
+typedef struct verbitem {
+  int   len;                 /* Length of verb name */
+  int   op;                  /* Op when no arg, or -1 if arg mandatory */
+  int   op_arg;              /* Op when arg present, or -1 if not allowed */
+} verbitem;
+
+static const char verbnames[] =
+  "\0"                       /* Empty name is a shorthand for MARK */
+  STRING_MARK0
+  STRING_ACCEPT0
+  STRING_COMMIT0
+  STRING_F0
+  STRING_FAIL0
+  STRING_PRUNE0
+  STRING_SKIP0
+  STRING_THEN;
+
+static const verbitem verbs[] = {
+  { 0, -1,        OP_MARK },
+  { 4, -1,        OP_MARK },
+  { 6, OP_ACCEPT, -1 },
+  { 6, OP_COMMIT, -1 },
+  { 1, OP_FAIL,   -1 },
+  { 4, OP_FAIL,   -1 },
+  { 5, OP_PRUNE,  OP_PRUNE_ARG },
+  { 4, OP_SKIP,   OP_SKIP_ARG  },
+  { 4, OP_THEN,   OP_THEN_ARG  }
+};
+
+static const int verbcount = sizeof(verbs)/sizeof(verbitem);
+
+
+/* Tables of names of POSIX character classes and their lengths. The names are
+now all in a single string, to reduce the number of relocations when a shared
+library is dynamically loaded. The list of lengths is terminated by a zero
+length entry. The first three must be alpha, lower, upper, as this is assumed
+for handling case independence. */
+
+static const char posix_names[] =
+  STRING_alpha0 STRING_lower0 STRING_upper0 STRING_alnum0
+  STRING_ascii0 STRING_blank0 STRING_cntrl0 STRING_digit0
+  STRING_graph0 STRING_print0 STRING_punct0 STRING_space0
+  STRING_word0  STRING_xdigit;
+
+static const pcre_uint8 posix_name_lengths[] = {
+  5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 6, 0 };
+
+/* Table of class bit maps for each POSIX class. Each class is formed from a
+base map, with an optional addition or removal of another map. Then, for some
+classes, there is some additional tweaking: for [:blank:] the vertical space
+characters are removed, and for [:alpha:] and [:alnum:] the underscore
+character is removed. The triples in the table consist of the base map offset,
+second map offset or -1 if no second map, and a non-negative value for map
+addition or a negative value for map subtraction (if there are two maps). The
+absolute value of the third field has these meanings: 0 => no tweaking, 1 =>
+remove vertical space characters, 2 => remove underscore. */
+
+static const int posix_class_maps[] = {
+  cbit_word,  cbit_digit, -2,             /* alpha */
+  cbit_lower, -1,          0,             /* lower */
+  cbit_upper, -1,          0,             /* upper */
+  cbit_word,  -1,          2,             /* alnum - word without underscore */
+  cbit_print, cbit_cntrl,  0,             /* ascii */
+  cbit_space, -1,          1,             /* blank - a GNU extension */
+  cbit_cntrl, -1,          0,             /* cntrl */
+  cbit_digit, -1,          0,             /* digit */
+  cbit_graph, -1,          0,             /* graph */
+  cbit_print, -1,          0,             /* print */
+  cbit_punct, -1,          0,             /* punct */
+  cbit_space, -1,          0,             /* space */
+  cbit_word,  -1,          0,             /* word - a Perl extension */
+  cbit_xdigit,-1,          0              /* xdigit */
+};
+
+/* Table of substitutes for \d etc when PCRE_UCP is set. The POSIX class
+substitutes must be in the order of the names, defined above, and there are
+both positive and negative cases. NULL means no substitute. */
+
+#ifdef SUPPORT_UCP
+static const pcre_uchar string_PNd[]  = {
+  CHAR_BACKSLASH, CHAR_P, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_N, CHAR_d, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_pNd[]  = {
+  CHAR_BACKSLASH, CHAR_p, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_N, CHAR_d, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_PXsp[] = {
+  CHAR_BACKSLASH, CHAR_P, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_X, CHAR_s, CHAR_p, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_pXsp[] = {
+  CHAR_BACKSLASH, CHAR_p, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_X, CHAR_s, CHAR_p, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_PXwd[] = {
+  CHAR_BACKSLASH, CHAR_P, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_X, CHAR_w, CHAR_d, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_pXwd[] = {
+  CHAR_BACKSLASH, CHAR_p, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_X, CHAR_w, CHAR_d, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+
+static const pcre_uchar *substitutes[] = {
+  string_PNd,           /* \D */
+  string_pNd,           /* \d */
+  string_PXsp,          /* \S */       /* NOTE: Xsp is Perl space */
+  string_pXsp,          /* \s */
+  string_PXwd,          /* \W */
+  string_pXwd           /* \w */
+};
+
+static const pcre_uchar string_pL[] =   {
+  CHAR_BACKSLASH, CHAR_p, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_L, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_pLl[] =  {
+  CHAR_BACKSLASH, CHAR_p, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_L, CHAR_l, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_pLu[] =  {
+  CHAR_BACKSLASH, CHAR_p, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_L, CHAR_u, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_pXan[] = {
+  CHAR_BACKSLASH, CHAR_p, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_X, CHAR_a, CHAR_n, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_h[] =    {
+  CHAR_BACKSLASH, CHAR_h, '\0' };
+static const pcre_uchar string_pXps[] = {
+  CHAR_BACKSLASH, CHAR_p, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_X, CHAR_p, CHAR_s, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_PL[] =   {
+  CHAR_BACKSLASH, CHAR_P, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_L, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_PLl[] =  {
+  CHAR_BACKSLASH, CHAR_P, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_L, CHAR_l, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_PLu[] =  {
+  CHAR_BACKSLASH, CHAR_P, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_L, CHAR_u, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_PXan[] = {
+  CHAR_BACKSLASH, CHAR_P, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_X, CHAR_a, CHAR_n, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+static const pcre_uchar string_H[] =    {
+  CHAR_BACKSLASH, CHAR_H, '\0' };
+static const pcre_uchar string_PXps[] = {
+  CHAR_BACKSLASH, CHAR_P, CHAR_LEFT_CURLY_BRACKET,
+  CHAR_X, CHAR_p, CHAR_s, CHAR_RIGHT_CURLY_BRACKET, '\0' };
+
+static const pcre_uchar *posix_substitutes[] = {
+  string_pL,            /* alpha */
+  string_pLl,           /* lower */
+  string_pLu,           /* upper */
+  string_pXan,          /* alnum */
+  NULL,                 /* ascii */
+  string_h,             /* blank */
+  NULL,                 /* cntrl */
+  string_pNd,           /* digit */
+  NULL,                 /* graph */
+  NULL,                 /* print */
+  NULL,                 /* punct */
+  string_pXps,          /* space */    /* NOTE: Xps is POSIX space */
+  string_pXwd,          /* word */
+  NULL,                 /* xdigit */
+  /* Negated cases */
+  string_PL,            /* ^alpha */
+  string_PLl,           /* ^lower */
+  string_PLu,           /* ^upper */
+  string_PXan,          /* ^alnum */
+  NULL,                 /* ^ascii */
+  string_H,             /* ^blank */
+  NULL,                 /* ^cntrl */
+  string_PNd,           /* ^digit */
+  NULL,                 /* ^graph */
+  NULL,                 /* ^print */
+  NULL,                 /* ^punct */
+  string_PXps,          /* ^space */   /* NOTE: Xps is POSIX space */
+  string_PXwd,          /* ^word */
+  NULL                  /* ^xdigit */
+};
+#define POSIX_SUBSIZE (sizeof(posix_substitutes) / sizeof(pcre_uchar *))
+#endif
+
+#define STRING(a)  # a
+#define XSTRING(s) STRING(s)
+
+/* The texts of compile-time error messages. These are "char *" because they
+are passed to the outside world. Do not ever re-use any error number, because
+they are documented. Always add a new error instead. Messages marked DEAD below
+are no longer used. This used to be a table of strings, but in order to reduce
+the number of relocations needed when a shared library is loaded dynamically,
+it is now one long string. We cannot use a table of offsets, because the
+lengths of inserts such as XSTRING(MAX_NAME_SIZE) are not known. Instead, we
+simply count through to the one we want - this isn't a performance issue
+because these strings are used only when there is a compilation error.
+
+Each substring ends with \0 to insert a null character. This includes the final
+substring, so that the whole string ends with \0\0, which can be detected when
+counting through. */
+
+static const char error_texts[] =
+  "no error\0"
+  "\\ at end of pattern\0"
+  "\\c at end of pattern\0"
+  "unrecognized character follows \\\0"
+  "numbers out of order in {} quantifier\0"
+  /* 5 */
+  "number too big in {} quantifier\0"
+  "missing terminating ] for character class\0"
+  "invalid escape sequence in character class\0"
+  "range out of order in character class\0"
+  "nothing to repeat\0"
+  /* 10 */
+  "operand of unlimited repeat could match the empty string\0"  /** DEAD **/
+  "internal error: unexpected repeat\0"
+  "unrecognized character after (? or (?-\0"
+  "POSIX named classes are supported only within a class\0"
+  "missing )\0"
+  /* 15 */
+  "reference to non-existent subpattern\0"
+  "erroffset passed as NULL\0"
+  "unknown option bit(s) set\0"
+  "missing ) after comment\0"
+  "parentheses nested too deeply\0"  /** DEAD **/
+  /* 20 */
+  "regular expression is too large\0"
+  "failed to get memory\0"
+  "unmatched parentheses\0"
+  "internal error: code overflow\0"
+  "unrecognized character after (?<\0"
+  /* 25 */
+  "lookbehind assertion is not fixed length\0"
+  "malformed number or name after (?(\0"
+  "conditional group contains more than two branches\0"
+  "assertion expected after (?(\0"
+  "(?R or (?[+-]digits must be followed by )\0"
+  /* 30 */
+  "unknown POSIX class name\0"
+  "POSIX collating elements are not supported\0"
+  "this version of PCRE is compiled without UTF support\0"
+  "spare error\0"  /** DEAD **/
+  "character value in \\x{...} sequence is too large\0"
+  /* 35 */
+  "invalid condition (?(0)\0"
+  "\\C not allowed in lookbehind assertion\0"
+  "PCRE does not support \\L, \\l, \\N{name}, \\U, or \\u\0"
+  "number after (?C is > 255\0"
+  "closing ) for (?C expected\0"
+  /* 40 */
+  "recursive call could loop indefinitely\0"
+  "unrecognized character after (?P\0"
+  "syntax error in subpattern name (missing terminator)\0"
+  "two named subpatterns have the same name\0"
+  "invalid UTF-8 string\0"
+  /* 45 */
+  "support for \\P, \\p, and \\X has not been compiled\0"
+  "malformed \\P or \\p sequence\0"
+  "unknown property name after \\P or \\p\0"
+  "subpattern name is too long (maximum " XSTRING(MAX_NAME_SIZE) " characters)\0"
+  "too many named subpatterns (maximum " XSTRING(MAX_NAME_COUNT) ")\0"
+  /* 50 */
+  "repeated subpattern is too long\0"    /** DEAD **/
+  "octal value is greater than \\377 in 8-bit non-UTF-8 mode\0"
+  "internal error: overran compiling workspace\0"
+  "internal error: previously-checked referenced subpattern not found\0"
+  "DEFINE group contains more than one branch\0"
+  /* 55 */
+  "repeating a DEFINE group is not allowed\0"  /** DEAD **/
+  "inconsistent NEWLINE options\0"
+  "\\g is not followed by a braced, angle-bracketed, or quoted name/number or by a plain number\0"
+  "a numbered reference must not be zero\0"
+  "an argument is not allowed for (*ACCEPT), (*FAIL), or (*COMMIT)\0"
+  /* 60 */
+  "(*VERB) not recognized\0"
+  "number is too big\0"
+  "subpattern name expected\0"
+  "digit expected after (?+\0"
+  "] is an invalid data character in JavaScript compatibility mode\0"
+  /* 65 */
+  "different names for subpatterns of the same number are not allowed\0"
+  "(*MARK) must have an argument\0"
+  "this version of PCRE is not compiled with Unicode property support\0"
+  "\\c must be followed by an ASCII character\0"
+  "\\k is not followed by a braced, angle-bracketed, or quoted name\0"
+  /* 70 */
+  "internal error: unknown opcode in find_fixedlength()\0"
+  "\\N is not supported in a class\0"
+  "too many forward references\0"
+  "disallowed Unicode code point (>= 0xd800 && <= 0xdfff)\0"
+  "invalid UTF-16 string\0"
+  /* 75 */
+  "name is too long in (*MARK), (*PRUNE), (*SKIP), or (*THEN)\0"
+  "character value in \\u.... sequence is too large\0"
+  ;
+
+/* Table to identify digits and hex digits. This is used when compiling
+patterns. Note that the tables in chartables are dependent on the locale, and
+may mark arbitrary characters as digits - but the PCRE compiling code expects
+to handle only 0-9, a-z, and A-Z as digits when compiling. That is why we have
+a private table here. It costs 256 bytes, but it is a lot faster than doing
+character value tests (at least in some simple cases I timed), and in some
+applications one wants PCRE to compile efficiently as well as match
+efficiently.
+
+For convenience, we use the same bit definitions as in chartables:
+
+  0x04   decimal digit
+  0x08   hexadecimal digit
+
+Then we can use ctype_digit and ctype_xdigit in the code. */
+
+/* Using a simple comparison for decimal numbers rather than a memory read
+is much faster, and the resulting code is simpler (the compiler turns it
+into a subtraction and unsigned comparison). */
+
+#define IS_DIGIT(x) ((x) >= CHAR_0 && (x) <= CHAR_9)
+
+#ifndef EBCDIC
+
+/* This is the "normal" case, for ASCII systems, and EBCDIC systems running in
+UTF-8 mode. */
+
+static const pcre_uint8 digitab[] =
+  {
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*   0-  7 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*   8- 15 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  16- 23 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  24- 31 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*    - '  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  ( - /  */
+  0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c, /*  0 - 7  */
+  0x0c,0x0c,0x00,0x00,0x00,0x00,0x00,0x00, /*  8 - ?  */
+  0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x00, /*  @ - G  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  H - O  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  P - W  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  X - _  */
+  0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x00, /*  ` - g  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  h - o  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  p - w  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  x -127 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 128-135 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 136-143 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 144-151 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 152-159 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 160-167 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 168-175 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 176-183 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 184-191 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 192-199 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 200-207 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 208-215 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 216-223 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 224-231 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 232-239 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 240-247 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};/* 248-255 */
+
+#else
+
+/* This is the "abnormal" case, for EBCDIC systems not running in UTF-8 mode. */
+
+static const pcre_uint8 digitab[] =
+  {
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*   0-  7  0 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*   8- 15    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  16- 23 10 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  24- 31    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  32- 39 20 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  40- 47    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  48- 55 30 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  56- 63    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*    - 71 40 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  72- |     */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  & - 87 50 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  88- 95    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  - -103 60 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 104- ?     */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 112-119 70 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 120- "     */
+  0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x00, /* 128- g  80 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  h -143    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 144- p  90 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  q -159    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 160- x  A0 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  y -175    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  ^ -183 B0 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 184-191    */
+  0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x00, /*  { - G  C0 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  H -207    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  } - P  D0 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  Q -223    */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  \ - X  E0 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  Y -239    */
+  0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c, /*  0 - 7  F0 */
+  0x0c,0x0c,0x00,0x00,0x00,0x00,0x00,0x00};/*  8 -255    */
+
+static const pcre_uint8 ebcdic_chartab[] = { /* chartable partial dup */
+  0x80,0x00,0x00,0x00,0x00,0x01,0x00,0x00, /*   0-  7 */
+  0x00,0x00,0x00,0x00,0x01,0x01,0x00,0x00, /*   8- 15 */
+  0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00, /*  16- 23 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  24- 31 */
+  0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00, /*  32- 39 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  40- 47 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  48- 55 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  56- 63 */
+  0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*    - 71 */
+  0x00,0x00,0x00,0x80,0x00,0x80,0x80,0x80, /*  72- |  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  & - 87 */
+  0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00, /*  88- 95 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  - -103 */
+  0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x80, /* 104- ?  */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 112-119 */
+  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 120- "  */
+  0x00,0x1a,0x1a,0x1a,0x1a,0x1a,0x1a,0x12, /* 128- g  */
+  0x12,0x12,0x00,0x00,0x00,0x00,0x00,0x00, /*  h -143 */
+  0x00,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /* 144- p  */
+  0x12,0x12,0x00,0x00,0x00,0x00,0x00,0x00, /*  q -159 */
+  0x00,0x00,0x12,0x12,0x12,0x12,0x12,0x12, /* 160- x  */
+  0x12,0x12,0x00,0x00,0x00,0x00,0x00,0x00, /*  y -175 */
+  0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /*  ^ -183 */
+  0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00, /* 184-191 */
+  0x80,0x1a,0x1a,0x1a,0x1a,0x1a,0x1a,0x12, /*  { - G  */
+  0x12,0x12,0x00,0x00,0x00,0x00,0x00,0x00, /*  H -207 */
+  0x00,0x12,0x12,0x12,0x12,0x12,0x12,0x12, /*  } - P  */
+  0x12,0x12,0x00,0x00,0x00,0x00,0x00,0x00, /*  Q -223 */
+  0x00,0x00,0x12,0x12,0x12,0x12,0x12,0x12, /*  \ - X  */
+  0x12,0x12,0x00,0x00,0x00,0x00,0x00,0x00, /*  Y -239 */
+  0x1c,0x1c,0x1c,0x1c,0x1c,0x1c,0x1c,0x1c, /*  0 - 7  */
+  0x1c,0x1c,0x00,0x00,0x00,0x00,0x00,0x00};/*  8 -255 */
+#endif
+
+
+/* Definition to allow mutual recursion */
+
+static BOOL
+  compile_regex(int, pcre_uchar **, const pcre_uchar **, int *, BOOL, BOOL, int, int,
+    int *, int *, branch_chain *, compile_data *, int *);
+
+
+
+/*************************************************
+*            Find an error text                  *
+*************************************************/
+
+/* The error texts are now all in one long string, to save on relocations. As
+some of the text is of unknown length, we can't use a table of offsets.
+Instead, just count through the strings. This is not a performance issue
+because it happens only when there has been a compilation error.
+
+Argument:   the error number
+Returns:    pointer to the error string
+*/
+
+static const char *
+find_error_text(int n)
+{
+const char *s = error_texts;
+for (; n > 0; n--)
+  {
+  while (*s++ != 0) {};
+  if (*s == 0) return "Error text not found (please report)";
+  }
+return s;
+}
+
+
+/*************************************************
+*           Expand the workspace                 *
+*************************************************/
+
+/* This function is called during the second compiling phase, if the number of
+forward references fills the existing workspace, which is originally a block on
+the stack. A larger block is obtained from malloc() unless the ultimate limit
+has been reached or the increase will be rather small.
+
+Argument: pointer to the compile data block
+Returns:  0 if all went well, else an error number
+*/
+
+static int
+expand_workspace(compile_data *cd)
+{
+pcre_uchar *newspace;
+int newsize = cd->workspace_size * 2;
+
+if (newsize > COMPILE_WORK_SIZE_MAX) newsize = COMPILE_WORK_SIZE_MAX;
+if (cd->workspace_size >= COMPILE_WORK_SIZE_MAX ||
+    newsize - cd->workspace_size < WORK_SIZE_SAFETY_MARGIN)
+ return ERR72;
+
+newspace = (PUBL(malloc))(IN_UCHARS(newsize));
+if (newspace == NULL) return ERR21;
+memcpy(newspace, cd->start_workspace, cd->workspace_size * sizeof(pcre_uchar));
+cd->hwm = (pcre_uchar *)newspace + (cd->hwm - cd->start_workspace);
+if (cd->workspace_size > COMPILE_WORK_SIZE)
+  (PUBL(free))((void *)cd->start_workspace);
+cd->start_workspace = newspace;
+cd->workspace_size = newsize;
+return 0;
+}
+
+
+
+/*************************************************
+*            Check for counted repeat            *
+*************************************************/
+
+/* This function is called when a '{' is encountered in a place where it might
+start a quantifier. It looks ahead to see if it really is a quantifier or not.
+It is only a quantifier if it is one of the forms {ddd} {ddd,} or {ddd,ddd}
+where the ddds are digits.
+
+Arguments:
+  p         pointer to the first char after '{'
+
+Returns:    TRUE or FALSE
+*/
+
+static BOOL
+is_counted_repeat(const pcre_uchar *p)
+{
+if (!IS_DIGIT(*p)) return FALSE;
+p++;
+while (IS_DIGIT(*p)) p++;
+if (*p == CHAR_RIGHT_CURLY_BRACKET) return TRUE;
+
+if (*p++ != CHAR_COMMA) return FALSE;
+if (*p == CHAR_RIGHT_CURLY_BRACKET) return TRUE;
+
+if (!IS_DIGIT(*p)) return FALSE;
+p++;
+while (IS_DIGIT(*p)) p++;
+
+return (*p == CHAR_RIGHT_CURLY_BRACKET);
+}
+
+
+
+/*************************************************
+*            Handle escapes                      *
+*************************************************/
+
+/* This function is called when a \ has been encountered. It either returns a
+positive value for a simple escape such as \n, or a negative value which
+encodes one of the more complicated things such as \d. A backreference to group
+n is returned as -(ESC_REF + n); ESC_REF is the highest ESC_xxx macro. When
+UTF-8 is enabled, a positive value greater than 255 may be returned. On entry,
+ptr is pointing at the \. On exit, it is on the final character of the escape
+sequence.
+
+Arguments:
+  ptrptr         points to the pattern position pointer
+  errorcodeptr   points to the errorcode variable
+  bracount       number of previous extracting brackets
+  options        the options bits
+  isclass        TRUE if inside a character class
+
+Returns:         zero or positive => a data character
+                 negative => a special escape sequence
+                 on error, errorcodeptr is set
+*/
+
+static int
+check_escape(const pcre_uchar **ptrptr, int *errorcodeptr, int bracount,
+  int options, BOOL isclass)
+{
+/* PCRE_UTF16 has the same value as PCRE_UTF8. */
+BOOL utf = (options & PCRE_UTF8) != 0;
+const pcre_uchar *ptr = *ptrptr + 1;
+pcre_int32 c;
+int i;
+
+GETCHARINCTEST(c, ptr);           /* Get character value, increment pointer */
+ptr--;                            /* Set pointer back to the last byte */
+
+/* If backslash is at the end of the pattern, it's an error. */
+
+if (c == 0) *errorcodeptr = ERR1;
+
+/* Non-alphanumerics are literals. For digits or letters, do an initial lookup
+in a table. A non-zero result is something that can be returned immediately.
+Otherwise further processing may be required. */
+
+#ifndef EBCDIC  /* ASCII/UTF-8 coding */
+/* Not alphanumeric */
+else if (c < CHAR_0 || c > CHAR_z) {}
+else if ((i = escapes[c - CHAR_0]) != 0) c = i;
+
+#else           /* EBCDIC coding */
+/* Not alphanumeric */
+else if (c < 'a' || (!MAX_255(c) || (ebcdic_chartab[c] & 0x0E) == 0)) {}
+else if ((i = escapes[c - 0x48]) != 0)  c = i;
+#endif
+
+/* Escapes that need further processing, or are illegal. */
+
+else
+  {
+  const pcre_uchar *oldptr;
+  BOOL braced, negated;
+
+  switch (c)
+    {
+    /* A number of Perl escapes are not handled by PCRE. We give an explicit
+    error. */
+
+    case CHAR_l:
+    case CHAR_L:
+    *errorcodeptr = ERR37;
+    break;
+
+    case CHAR_u:
+    if ((options & PCRE_JAVASCRIPT_COMPAT) != 0)
+      {
+      /* In JavaScript, \u must be followed by four hexadecimal numbers.
+      Otherwise it is a lowercase u letter. */
+      if (MAX_255(ptr[1]) && (digitab[ptr[1]] & ctype_xdigit) != 0
+        && MAX_255(ptr[2]) && (digitab[ptr[2]] & ctype_xdigit) != 0
+        && MAX_255(ptr[3]) && (digitab[ptr[3]] & ctype_xdigit) != 0
+        && MAX_255(ptr[4]) && (digitab[ptr[4]] & ctype_xdigit) != 0)
+        {
+        c = 0;
+        for (i = 0; i < 4; ++i)
+          {
+          register int cc = *(++ptr);
+#ifndef EBCDIC  /* ASCII/UTF-8 coding */
+          if (cc >= CHAR_a) cc -= 32;               /* Convert to upper case */
+          c = (c << 4) + cc - ((cc < CHAR_A)? CHAR_0 : (CHAR_A - 10));
+#else           /* EBCDIC coding */
+          if (cc >= CHAR_a && cc <= CHAR_z) cc += 64;  /* Convert to upper case */
+          c = (c << 4) + cc - ((cc >= CHAR_0)? CHAR_0 : (CHAR_A - 10));
+#endif
+          }
+
+#ifdef COMPILE_PCRE8
+        if (c > (utf ? 0x10ffff : 0xff))
+#else
+#ifdef COMPILE_PCRE16
+        if (c > (utf ? 0x10ffff : 0xffff))
+#endif
+#endif
+          {
+          *errorcodeptr = ERR76;
+          }
+        else if (utf && c >= 0xd800 && c <= 0xdfff) *errorcodeptr = ERR73;
+        }
+      }
+    else
+      *errorcodeptr = ERR37;
+    break;
+
+    case CHAR_U:
+    /* In JavaScript, \U is an uppercase U letter. */
+    if ((options & PCRE_JAVASCRIPT_COMPAT) == 0) *errorcodeptr = ERR37;
+    break;
+
+    /* In a character class, \g is just a literal "g". Outside a character
+    class, \g must be followed by one of a number of specific things:
+
+    (1) A number, either plain or braced. If positive, it is an absolute
+    backreference. If negative, it is a relative backreference. This is a Perl
+    5.10 feature.
+
+    (2) Perl 5.10 also supports \g{name} as a reference to a named group. This
+    is part of Perl's movement towards a unified syntax for back references. As
+    this is synonymous with \k{name}, we fudge it up by pretending it really
+    was \k.
+
+    (3) For Oniguruma compatibility we also support \g followed by a name or a
+    number either in angle brackets or in single quotes. However, these are
+    (possibly recursive) subroutine calls, _not_ backreferences. Just return
+    the -ESC_g code (cf \k). */
+
+    case CHAR_g:
+    if (isclass) break;
+    if (ptr[1] == CHAR_LESS_THAN_SIGN || ptr[1] == CHAR_APOSTROPHE)
+      {
+      c = -ESC_g;
+      break;
+      }
+
+    /* Handle the Perl-compatible cases */
+
+    if (ptr[1] == CHAR_LEFT_CURLY_BRACKET)
+      {
+      const pcre_uchar *p;
+      for (p = ptr+2; *p != 0 && *p != CHAR_RIGHT_CURLY_BRACKET; p++)
+        if (*p != CHAR_MINUS && !IS_DIGIT(*p)) break;
+      if (*p != 0 && *p != CHAR_RIGHT_CURLY_BRACKET)
+        {
+        c = -ESC_k;
+        break;
+        }
+      braced = TRUE;
+      ptr++;
+      }
+    else braced = FALSE;
+
+    if (ptr[1] == CHAR_MINUS)
+      {
+      negated = TRUE;
+      ptr++;
+      }
+    else negated = FALSE;
+
+    /* The integer range is limited by the machine's int representation. */
+    c = 0;
+    while (IS_DIGIT(ptr[1]))
+      {
+      if (((unsigned int)c) > INT_MAX / 10) /* Integer overflow */
+        {
+        c = -1;
+        break;
+        }
+      c = c * 10 + *(++ptr) - CHAR_0;
+      }
+    if (((unsigned int)c) > INT_MAX) /* Integer overflow */
+      {
+      while (IS_DIGIT(ptr[1]))
+        ptr++;
+      *errorcodeptr = ERR61;
+      break;
+      }
+
+    if (braced && *(++ptr) != CHAR_RIGHT_CURLY_BRACKET)
+      {
+      *errorcodeptr = ERR57;
+      break;
+      }
+
+    if (c == 0)
+      {
+      *errorcodeptr = ERR58;
+      break;
+      }
+
+    if (negated)
+      {
+      if (c > bracount)
+        {
+        *errorcodeptr = ERR15;
+        break;
+        }
+      c = bracount - (c - 1);
+      }
+
+    c = -(ESC_REF + c);
+    break;
+
+    /* The handling of escape sequences consisting of a string of digits
+    starting with one that is not zero is not straightforward. By experiment,
+    the way Perl works seems to be as follows:
+
+    Outside a character class, the digits are read as a decimal number. If the
+    number is less than 10, or if there are that many previous extracting
+    left brackets, then it is a back reference. Otherwise, up to three octal
+    digits are read to form an escaped byte. Thus \123 is likely to be octal
+    123 (cf \0123, which is octal 012 followed by the literal 3). If the octal
+    value is greater than 377, the least significant 8 bits are taken. Inside a
+    character class, \ followed by a digit is always an octal number. */
+
+    case CHAR_1: case CHAR_2: case CHAR_3: case CHAR_4: case CHAR_5:
+    case CHAR_6: case CHAR_7: case CHAR_8: case CHAR_9:
+
+    if (!isclass)
+      {
+      oldptr = ptr;
+      /* The integer range is limited by the machine's int representation. */
+      c -= CHAR_0;
+      while (IS_DIGIT(ptr[1]))
+        {
+        if (((unsigned int)c) > INT_MAX / 10) /* Integer overflow */
+          {
+          c = -1;
+          break;
+          }
+        c = c * 10 + *(++ptr) - CHAR_0;
+        }
+      if (((unsigned int)c) > INT_MAX) /* Integer overflow */
+        {
+        while (IS_DIGIT(ptr[1]))
+          ptr++;
+        *errorcodeptr = ERR61;
+        break;
+        }
+      if (c < 10 || c <= bracount)
+        {
+        c = -(ESC_REF + c);
+        break;
+        }
+      ptr = oldptr;      /* Put the pointer back and fall through */
+      }
+
+    /* Handle an octal number following \. If the first digit is 8 or 9, Perl
+    generates a binary zero byte and treats the digit as a following literal.
+    Thus we have to pull back the pointer by one. */
+
+    if ((c = *ptr) >= CHAR_8)
+      {
+      ptr--;
+      c = 0;
+      break;
+      }
+
+    /* \0 always starts an octal number, but we may drop through to here with a
+    larger first octal digit. The original code used just to take the least
+    significant 8 bits of octal numbers (I think this is what early Perls used
+    to do). Nowadays we allow for larger numbers in UTF-8 mode and 16-bit mode,
+    but no more than 3 octal digits. */
+
+    case CHAR_0:
+    c -= CHAR_0;
+    while(i++ < 2 && ptr[1] >= CHAR_0 && ptr[1] <= CHAR_7)
+        c = c * 8 + *(++ptr) - CHAR_0;
+#ifdef COMPILE_PCRE8
+    if (!utf && c > 0xff) *errorcodeptr = ERR51;
+#endif
+    break;
+
+    /* \x is complicated. \x{ddd} is a character number which can be greater
+    than 0xff in utf or non-8bit mode, but only if the ddd are hex digits.
+    If not, { is treated as a data character. */
+
+    case CHAR_x:
+    if ((options & PCRE_JAVASCRIPT_COMPAT) != 0)
+      {
+      /* In JavaScript, \x must be followed by two hexadecimal numbers.
+      Otherwise it is a lowercase x letter. */
+      if (MAX_255(ptr[1]) && (digitab[ptr[1]] & ctype_xdigit) != 0
+        && MAX_255(ptr[2]) && (digitab[ptr[2]] & ctype_xdigit) != 0)
+        {
+        c = 0;
+        for (i = 0; i < 2; ++i)
+          {
+          register int cc = *(++ptr);
+#ifndef EBCDIC  /* ASCII/UTF-8 coding */
+          if (cc >= CHAR_a) cc -= 32;               /* Convert to upper case */
+          c = (c << 4) + cc - ((cc < CHAR_A)? CHAR_0 : (CHAR_A - 10));
+#else           /* EBCDIC coding */
+          if (cc >= CHAR_a && cc <= CHAR_z) cc += 64;  /* Convert to upper case */
+          c = (c << 4) + cc - ((cc >= CHAR_0)? CHAR_0 : (CHAR_A - 10));
+#endif
+          }
+        }
+      break;
+      }
+
+    if (ptr[1] == CHAR_LEFT_CURLY_BRACKET)
+      {
+      const pcre_uchar *pt = ptr + 2;
+
+      c = 0;
+      while (MAX_255(*pt) && (digitab[*pt] & ctype_xdigit) != 0)
+        {
+        register int cc = *pt++;
+        if (c == 0 && cc == CHAR_0) continue;     /* Leading zeroes */
+
+#ifndef EBCDIC  /* ASCII/UTF-8 coding */
+        if (cc >= CHAR_a) cc -= 32;               /* Convert to upper case */
+        c = (c << 4) + cc - ((cc < CHAR_A)? CHAR_0 : (CHAR_A - 10));
+#else           /* EBCDIC coding */
+        if (cc >= CHAR_a && cc <= CHAR_z) cc += 64;  /* Convert to upper case */
+        c = (c << 4) + cc - ((cc >= CHAR_0)? CHAR_0 : (CHAR_A - 10));
+#endif
+
+#ifdef COMPILE_PCRE8
+        if (c > (utf ? 0x10ffff : 0xff)) { c = -1; break; }
+#else
+#ifdef COMPILE_PCRE16
+        if (c > (utf ? 0x10ffff : 0xffff)) { c = -1; break; }
+#endif
+#endif
+        }
+
+      if (c < 0)
+        {
+        while (MAX_255(*pt) && (digitab[*pt] & ctype_xdigit) != 0) pt++;
+        *errorcodeptr = ERR34;
+        }
+
+      if (*pt == CHAR_RIGHT_CURLY_BRACKET)
+        {
+        if (utf && c >= 0xd800 && c <= 0xdfff) *errorcodeptr = ERR73;
+        ptr = pt;
+        break;
+        }
+
+      /* If the sequence of hex digits does not end with '}', then we don't
+      recognize this construct; fall through to the normal \x handling. */
+      }
+
+    /* Read just a single-byte hex-defined char */
+
+    c = 0;
+    while (i++ < 2 && MAX_255(ptr[1]) && (digitab[ptr[1]] & ctype_xdigit) != 0)
+      {
+      int cc;                                  /* Some compilers don't like */
+      cc = *(++ptr);                           /* ++ in initializers */
+#ifndef EBCDIC  /* ASCII/UTF-8 coding */
+      if (cc >= CHAR_a) cc -= 32;              /* Convert to upper case */
+      c = c * 16 + cc - ((cc < CHAR_A)? CHAR_0 : (CHAR_A - 10));
+#else           /* EBCDIC coding */
+      if (cc <= CHAR_z) cc += 64;              /* Convert to upper case */
+      c = c * 16 + cc - ((cc >= CHAR_0)? CHAR_0 : (CHAR_A - 10));
+#endif
+      }
+    break;
+
+    /* For \c, a following letter is upper-cased; then the 0x40 bit is flipped.
+    An error is given if the byte following \c is not an ASCII character. This
+    coding is ASCII-specific, but then the whole concept of \cx is
+    ASCII-specific. (However, an EBCDIC equivalent has now been added.) */
+
+    case CHAR_c:
+    c = *(++ptr);
+    if (c == 0)
+      {
+      *errorcodeptr = ERR2;
+      break;
+      }
+#ifndef EBCDIC    /* ASCII/UTF-8 coding */
+    if (c > 127)  /* Excludes all non-ASCII in either mode */
+      {
+      *errorcodeptr = ERR68;
+      break;
+      }
+    if (c >= CHAR_a && c <= CHAR_z) c -= 32;
+    c ^= 0x40;
+#else             /* EBCDIC coding */
+    if (c >= CHAR_a && c <= CHAR_z) c += 64;
+    c ^= 0xC0;
+#endif
+    break;
+
+    /* PCRE_EXTRA enables extensions to Perl in the matter of escapes. Any
+    other alphanumeric following \ is an error if PCRE_EXTRA was set;
+    otherwise, for Perl compatibility, it is a literal. This code looks a bit
+    odd, but there used to be some cases other than the default, and there may
+    be again in future, so I haven't "optimized" it. */
+
+    default:
+    if ((options & PCRE_EXTRA) != 0) switch(c)
+      {
+      default:
+      *errorcodeptr = ERR3;
+      break;
+      }
+    break;
+    }
+  }
+
+/* Perl supports \N{name} for character names, as well as plain \N for "not
+newline". PCRE does not support \N{name}. However, it does support
+quantification such as \N{2,3}. */
+
+if (c == -ESC_N && ptr[1] == CHAR_LEFT_CURLY_BRACKET &&
+     !is_counted_repeat(ptr+2))
+  *errorcodeptr = ERR37;
+
+/* If PCRE_UCP is set, we change the values for \d etc. */
+
+if ((options & PCRE_UCP) != 0 && c <= -ESC_D && c >= -ESC_w)
+  c -= (ESC_DU - ESC_D);
+
+/* Set the pointer to the final character before returning. */
+
+*ptrptr = ptr;
+return c;
+}
+
+
+
+#ifdef SUPPORT_UCP
+/*************************************************
+*               Handle \P and \p                 *
+*************************************************/
+
+/* This function is called after \P or \p has been encountered, provided that
+PCRE is compiled with support for Unicode properties. On entry, ptrptr is
+pointing at the P or p. On exit, it is pointing at the final character of the
+escape sequence.
+
+Argument:
+  ptrptr         points to the pattern position pointer
+  negptr         points to a boolean that is set TRUE for negation else FALSE
+  dptr           points to an int that is set to the detailed property value
+  errorcodeptr   points to the error code variable
+
+Returns:         type value from ucp_type_table, or -1 for an invalid type
+*/
+
+static int
+get_ucp(const pcre_uchar **ptrptr, BOOL *negptr, int *dptr, int *errorcodeptr)
+{
+int c, i, bot, top;
+const pcre_uchar *ptr = *ptrptr;
+pcre_uchar name[32];
+
+c = *(++ptr);
+if (c == 0) goto ERROR_RETURN;
+
+*negptr = FALSE;
+
+/* \P or \p can be followed by a name in {}, optionally preceded by ^ for
+negation. */
+
+if (c == CHAR_LEFT_CURLY_BRACKET)
+  {
+  if (ptr[1] == CHAR_CIRCUMFLEX_ACCENT)
+    {
+    *negptr = TRUE;
+    ptr++;
+    }
+  for (i = 0; i < (int)(sizeof(name) / sizeof(pcre_uchar)) - 1; i++)
+    {
+    c = *(++ptr);
+    if (c == 0) goto ERROR_RETURN;
+    if (c == CHAR_RIGHT_CURLY_BRACKET) break;
+    name[i] = c;
+    }
+  if (c != CHAR_RIGHT_CURLY_BRACKET) goto ERROR_RETURN;
+  name[i] = 0;
+  }
+
+/* Otherwise there is just one following character */
+
+else
+  {
+  name[0] = c;
+  name[1] = 0;
+  }
+
+*ptrptr = ptr;
+
+/* Search for a recognized property name using binary chop */
+
+bot = 0;
+top = PRIV(utt_size);
+
+while (bot < top)
+  {
+  i = (bot + top) >> 1;
+  c = STRCMP_UC_C8(name, PRIV(utt_names) + PRIV(utt)[i].name_offset);
+  if (c == 0)
+    {
+    *dptr = PRIV(utt)[i].value;
+    return PRIV(utt)[i].type;
+    }
+  if (c > 0) bot = i + 1; else top = i;
+  }
+
+*errorcodeptr = ERR47;
+*ptrptr = ptr;
+return -1;
+
+ERROR_RETURN:
+*errorcodeptr = ERR46;
+*ptrptr = ptr;
+return -1;
+}
+#endif
+
+
+
+
+/*************************************************
+*         Read repeat counts                     *
+*************************************************/
+
+/* Read an item of the form {n,m} and return the values. This is called only
+after is_counted_repeat() has confirmed that a repeat-count quantifier exists,
+so the syntax is guaranteed to be correct, but we need to check the values.
+
+Arguments:
+  p              pointer to first char after '{'
+  minp           pointer to int for min
+  maxp           pointer to int for max
+                 returned as -1 if no max
+  errorcodeptr   points to error code variable
+
+Returns:         pointer to '}' on success;
+                 current ptr on error, with errorcodeptr set non-zero
+*/
+
+static const pcre_uchar *
+read_repeat_counts(const pcre_uchar *p, int *minp, int *maxp, int *errorcodeptr)
+{
+int min = 0;
+int max = -1;
+
+/* Read the minimum value and do a paranoid check: a negative value indicates
+an integer overflow. */
+
+while (IS_DIGIT(*p)) min = min * 10 + *p++ - CHAR_0;
+if (min < 0 || min > 65535)
+  {
+  *errorcodeptr = ERR5;
+  return p;
+  }
+
+/* Read the maximum value if there is one, and again do a paranoid on its size.
+Also, max must not be less than min. */
+
+if (*p == CHAR_RIGHT_CURLY_BRACKET) max = min; else
+  {
+  if (*(++p) != CHAR_RIGHT_CURLY_BRACKET)
+    {
+    max = 0;
+    while(IS_DIGIT(*p)) max = max * 10 + *p++ - CHAR_0;
+    if (max < 0 || max > 65535)
+      {
+      *errorcodeptr = ERR5;
+      return p;
+      }
+    if (max < min)
+      {
+      *errorcodeptr = ERR4;
+      return p;
+      }
+    }
+  }
+
+/* Fill in the required variables, and pass back the pointer to the terminating
+'}'. */
+
+*minp = min;
+*maxp = max;
+return p;
+}
+
+
+
+/*************************************************
+*  Subroutine for finding forward reference      *
+*************************************************/
+
+/* This recursive function is called only from find_parens() below. The
+top-level call starts at the beginning of the pattern. All other calls must
+start at a parenthesis. It scans along a pattern's text looking for capturing
+subpatterns, and counting them. If it finds a named pattern that matches the
+name it is given, it returns its number. Alternatively, if the name is NULL, it
+returns when it reaches a given numbered subpattern. Recursion is used to keep
+track of subpatterns that reset the capturing group numbers - the (?| feature.
+
+This function was originally called only from the second pass, in which we know
+that if (?< or (?' or (?P< is encountered, the name will be correctly
+terminated because that is checked in the first pass. There is now one call to
+this function in the first pass, to check for a recursive back reference by
+name (so that we can make the whole group atomic). In this case, we need check
+only up to the current position in the pattern, and that is still OK because
+and previous occurrences will have been checked. To make this work, the test
+for "end of pattern" is a check against cd->end_pattern in the main loop,
+instead of looking for a binary zero. This means that the special first-pass
+call can adjust cd->end_pattern temporarily. (Checks for binary zero while
+processing items within the loop are OK, because afterwards the main loop will
+terminate.)
+
+Arguments:
+  ptrptr       address of the current character pointer (updated)
+  cd           compile background data
+  name         name to seek, or NULL if seeking a numbered subpattern
+  lorn         name length, or subpattern number if name is NULL
+  xmode        TRUE if we are in /x mode
+  utf          TRUE if we are in UTF-8 / UTF-16 mode
+  count        pointer to the current capturing subpattern number (updated)
+
+Returns:       the number of the named subpattern, or -1 if not found
+*/
+
+static int
+find_parens_sub(pcre_uchar **ptrptr, compile_data *cd, const pcre_uchar *name, int lorn,
+  BOOL xmode, BOOL utf, int *count)
+{
+pcre_uchar *ptr = *ptrptr;
+int start_count = *count;
+int hwm_count = start_count;
+BOOL dup_parens = FALSE;
+
+/* If the first character is a parenthesis, check on the type of group we are
+dealing with. The very first call may not start with a parenthesis. */
+
+if (ptr[0] == CHAR_LEFT_PARENTHESIS)
+  {
+  /* Handle specials such as (*SKIP) or (*UTF8) etc. */
+
+  if (ptr[1] == CHAR_ASTERISK) ptr += 2;
+
+  /* Handle a normal, unnamed capturing parenthesis. */
+
+  else if (ptr[1] != CHAR_QUESTION_MARK)
+    {
+    *count += 1;
+    if (name == NULL && *count == lorn) return *count;
+    ptr++;
+    }
+
+  /* All cases now have (? at the start. Remember when we are in a group
+  where the parenthesis numbers are duplicated. */
+
+  else if (ptr[2] == CHAR_VERTICAL_LINE)
+    {
+    ptr += 3;
+    dup_parens = TRUE;
+    }
+
+  /* Handle comments; all characters are allowed until a ket is reached. */
+
+  else if (ptr[2] == CHAR_NUMBER_SIGN)
+    {
+    for (ptr += 3; *ptr != 0; ptr++) if (*ptr == CHAR_RIGHT_PARENTHESIS) break;
+    goto FAIL_EXIT;
+    }
+
+  /* Handle a condition. If it is an assertion, just carry on so that it
+  is processed as normal. If not, skip to the closing parenthesis of the
+  condition (there can't be any nested parens). */
+
+  else if (ptr[2] == CHAR_LEFT_PARENTHESIS)
+    {
+    ptr += 2;
+    if (ptr[1] != CHAR_QUESTION_MARK)
+      {
+      while (*ptr != 0 && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;
+      if (*ptr != 0) ptr++;
+      }
+    }
+
+  /* Start with (? but not a condition. */
+
+  else
+    {
+    ptr += 2;
+    if (*ptr == CHAR_P) ptr++;                      /* Allow optional P */
+
+    /* We have to disambiguate (?<! and (?<= from (?<name> for named groups */
+
+    if ((*ptr == CHAR_LESS_THAN_SIGN && ptr[1] != CHAR_EXCLAMATION_MARK &&
+        ptr[1] != CHAR_EQUALS_SIGN) || *ptr == CHAR_APOSTROPHE)
+      {
+      int term;
+      const pcre_uchar *thisname;
+      *count += 1;
+      if (name == NULL && *count == lorn) return *count;
+      term = *ptr++;
+      if (term == CHAR_LESS_THAN_SIGN) term = CHAR_GREATER_THAN_SIGN;
+      thisname = ptr;
+      while (*ptr != term) ptr++;
+      if (name != NULL && lorn == ptr - thisname &&
+          STRNCMP_UC_UC(name, thisname, lorn) == 0)
+        return *count;
+      term++;
+      }
+    }
+  }
+
+/* Past any initial parenthesis handling, scan for parentheses or vertical
+bars. Stop if we get to cd->end_pattern. Note that this is important for the
+first-pass call when this value is temporarily adjusted to stop at the current
+position. So DO NOT change this to a test for binary zero. */
+
+for (; ptr < cd->end_pattern; ptr++)
+  {
+  /* Skip over backslashed characters and also entire \Q...\E */
+
+  if (*ptr == CHAR_BACKSLASH)
+    {
+    if (*(++ptr) == 0) goto FAIL_EXIT;
+    if (*ptr == CHAR_Q) for (;;)
+      {
+      while (*(++ptr) != 0 && *ptr != CHAR_BACKSLASH) {};
+      if (*ptr == 0) goto FAIL_EXIT;
+      if (*(++ptr) == CHAR_E) break;
+      }
+    continue;
+    }
+
+  /* Skip over character classes; this logic must be similar to the way they
+  are handled for real. If the first character is '^', skip it. Also, if the
+  first few characters (either before or after ^) are \Q\E or \E we skip them
+  too. This makes for compatibility with Perl. Note the use of STR macros to
+  encode "Q\\E" so that it works in UTF-8 on EBCDIC platforms. */
+
+  if (*ptr == CHAR_LEFT_SQUARE_BRACKET)
+    {
+    BOOL negate_class = FALSE;
+    for (;;)
+      {
+      if (ptr[1] == CHAR_BACKSLASH)
+        {
+        if (ptr[2] == CHAR_E)
+          ptr+= 2;
+        else if (STRNCMP_UC_C8(ptr + 2,
+                 STR_Q STR_BACKSLASH STR_E, 3) == 0)
+          ptr += 4;
+        else
+          break;
+        }
+      else if (!negate_class && ptr[1] == CHAR_CIRCUMFLEX_ACCENT)
+        {
+        negate_class = TRUE;
+        ptr++;
+        }
+      else break;
+      }
+
+    /* If the next character is ']', it is a data character that must be
+    skipped, except in JavaScript compatibility mode. */
+
+    if (ptr[1] == CHAR_RIGHT_SQUARE_BRACKET &&
+        (cd->external_options & PCRE_JAVASCRIPT_COMPAT) == 0)
+      ptr++;
+
+    while (*(++ptr) != CHAR_RIGHT_SQUARE_BRACKET)
+      {
+      if (*ptr == 0) return -1;
+      if (*ptr == CHAR_BACKSLASH)
+        {
+        if (*(++ptr) == 0) goto FAIL_EXIT;
+        if (*ptr == CHAR_Q) for (;;)
+          {
+          while (*(++ptr) != 0 && *ptr != CHAR_BACKSLASH) {};
+          if (*ptr == 0) goto FAIL_EXIT;
+          if (*(++ptr) == CHAR_E) break;
+          }
+        continue;
+        }
+      }
+    continue;
+    }
+
+  /* Skip comments in /x mode */
+
+  if (xmode && *ptr == CHAR_NUMBER_SIGN)
+    {
+    ptr++;
+    while (*ptr != 0)
+      {
+      if (IS_NEWLINE(ptr)) { ptr += cd->nllen - 1; break; }
+      ptr++;
+#ifdef SUPPORT_UTF
+      if (utf) FORWARDCHAR(ptr);
+#endif
+      }
+    if (*ptr == 0) goto FAIL_EXIT;
+    continue;
+    }
+
+  /* Check for the special metacharacters */
+
+  if (*ptr == CHAR_LEFT_PARENTHESIS)
+    {
+    int rc = find_parens_sub(&ptr, cd, name, lorn, xmode, utf, count);
+    if (rc > 0) return rc;
+    if (*ptr == 0) goto FAIL_EXIT;
+    }
+
+  else if (*ptr == CHAR_RIGHT_PARENTHESIS)
+    {
+    if (dup_parens && *count < hwm_count) *count = hwm_count;
+    goto FAIL_EXIT;
+    }
+
+  else if (*ptr == CHAR_VERTICAL_LINE && dup_parens)
+    {
+    if (*count > hwm_count) hwm_count = *count;
+    *count = start_count;
+    }
+  }
+
+FAIL_EXIT:
+*ptrptr = ptr;
+return -1;
+}
+
+
+
+
+/*************************************************
+*       Find forward referenced subpattern       *
+*************************************************/
+
+/* This function scans along a pattern's text looking for capturing
+subpatterns, and counting them. If it finds a named pattern that matches the
+name it is given, it returns its number. Alternatively, if the name is NULL, it
+returns when it reaches a given numbered subpattern. This is used for forward
+references to subpatterns. We used to be able to start this scan from the
+current compiling point, using the current count value from cd->bracount, and
+do it all in a single loop, but the addition of the possibility of duplicate
+subpattern numbers means that we have to scan from the very start, in order to
+take account of such duplicates, and to use a recursive function to keep track
+of the different types of group.
+
+Arguments:
+  cd           compile background data
+  name         name to seek, or NULL if seeking a numbered subpattern
+  lorn         name length, or subpattern number if name is NULL
+  xmode        TRUE if we are in /x mode
+  utf          TRUE if we are in UTF-8 / UTF-16 mode
+
+Returns:       the number of the found subpattern, or -1 if not found
+*/
+
+static int
+find_parens(compile_data *cd, const pcre_uchar *name, int lorn, BOOL xmode,
+  BOOL utf)
+{
+pcre_uchar *ptr = (pcre_uchar *)cd->start_pattern;
+int count = 0;
+int rc;
+
+/* If the pattern does not start with an opening parenthesis, the first call
+to find_parens_sub() will scan right to the end (if necessary). However, if it
+does start with a parenthesis, find_parens_sub() will return when it hits the
+matching closing parens. That is why we have to have a loop. */
+
+for (;;)
+  {
+  rc = find_parens_sub(&ptr, cd, name, lorn, xmode, utf, &count);
+  if (rc > 0 || *ptr++ == 0) break;
+  }
+
+return rc;
+}
+
+
+
+
+/*************************************************
+*      Find first significant op code            *
+*************************************************/
+
+/* This is called by several functions that scan a compiled expression looking
+for a fixed first character, or an anchoring op code etc. It skips over things
+that do not influence this. For some calls, it makes sense to skip negative
+forward and all backward assertions, and also the \b assertion; for others it
+does not.
+
+Arguments:
+  code         pointer to the start of the group
+  skipassert   TRUE if certain assertions are to be skipped
+
+Returns:       pointer to the first significant opcode
+*/
+
+static const pcre_uchar*
+first_significant_code(const pcre_uchar *code, BOOL skipassert)
+{
+for (;;)
+  {
+  switch ((int)*code)
+    {
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    if (!skipassert) return code;
+    do code += GET(code, 1); while (*code == OP_ALT);
+    code += PRIV(OP_lengths)[*code];
+    break;
+
+    case OP_WORD_BOUNDARY:
+    case OP_NOT_WORD_BOUNDARY:
+    if (!skipassert) return code;
+    /* Fall through */
+
+    case OP_CALLOUT:
+    case OP_CREF:
+    case OP_NCREF:
+    case OP_RREF:
+    case OP_NRREF:
+    case OP_DEF:
+    code += PRIV(OP_lengths)[*code];
+    break;
+
+    default:
+    return code;
+    }
+  }
+/* Control never reaches here */
+}
+
+
+
+
+/*************************************************
+*        Find the fixed length of a branch       *
+*************************************************/
+
+/* Scan a branch and compute the fixed length of subject that will match it,
+if the length is fixed. This is needed for dealing with backward assertions.
+In UTF8 mode, the result is in characters rather than bytes. The branch is
+temporarily terminated with OP_END when this function is called.
+
+This function is called when a backward assertion is encountered, so that if it
+fails, the error message can point to the correct place in the pattern.
+However, we cannot do this when the assertion contains subroutine calls,
+because they can be forward references. We solve this by remembering this case
+and doing the check at the end; a flag specifies which mode we are running in.
+
+Arguments:
+  code     points to the start of the pattern (the bracket)
+  utf      TRUE in UTF-8 / UTF-16 mode
+  atend    TRUE if called when the pattern is complete
+  cd       the "compile data" structure
+
+Returns:   the fixed length,
+             or -1 if there is no fixed length,
+             or -2 if \C was encountered (in UTF-8 mode only)
+             or -3 if an OP_RECURSE item was encountered and atend is FALSE
+             or -4 if an unknown opcode was encountered (internal error)
+*/
+
+static int
+find_fixedlength(pcre_uchar *code, BOOL utf, BOOL atend, compile_data *cd)
+{
+int length = -1;
+
+register int branchlength = 0;
+register pcre_uchar *cc = code + 1 + LINK_SIZE;
+
+/* Scan along the opcodes for this branch. If we get to the end of the
+branch, check the length against that of the other branches. */
+
+for (;;)
+  {
+  int d;
+  pcre_uchar *ce, *cs;
+  register int op = *cc;
+
+  switch (op)
+    {
+    /* We only need to continue for OP_CBRA (normal capturing bracket) and
+    OP_BRA (normal non-capturing bracket) because the other variants of these
+    opcodes are all concerned with unlimited repeated groups, which of course
+    are not of fixed length. */
+
+    case OP_CBRA:
+    case OP_BRA:
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    case OP_COND:
+    d = find_fixedlength(cc + ((op == OP_CBRA)? IMM2_SIZE : 0), utf, atend, cd);
+    if (d < 0) return d;
+    branchlength += d;
+    do cc += GET(cc, 1); while (*cc == OP_ALT);
+    cc += 1 + LINK_SIZE;
+    break;
+
+    /* Reached end of a branch; if it's a ket it is the end of a nested call.
+    If it's ALT it is an alternation in a nested call. An ACCEPT is effectively
+    an ALT. If it is END it's the end of the outer call. All can be handled by
+    the same code. Note that we must not include the OP_KETRxxx opcodes here,
+    because they all imply an unlimited repeat. */
+
+    case OP_ALT:
+    case OP_KET:
+    case OP_END:
+    case OP_ACCEPT:
+    case OP_ASSERT_ACCEPT:
+    if (length < 0) length = branchlength;
+      else if (length != branchlength) return -1;
+    if (*cc != OP_ALT) return length;
+    cc += 1 + LINK_SIZE;
+    branchlength = 0;
+    break;
+
+    /* A true recursion implies not fixed length, but a subroutine call may
+    be OK. If the subroutine is a forward reference, we can't deal with
+    it until the end of the pattern, so return -3. */
+
+    case OP_RECURSE:
+    if (!atend) return -3;
+    cs = ce = (pcre_uchar *)cd->start_code + GET(cc, 1);  /* Start subpattern */
+    do ce += GET(ce, 1); while (*ce == OP_ALT);           /* End subpattern */
+    if (cc > cs && cc < ce) return -1;                    /* Recursion */
+    d = find_fixedlength(cs + IMM2_SIZE, utf, atend, cd);
+    if (d < 0) return d;
+    branchlength += d;
+    cc += 1 + LINK_SIZE;
+    break;
+
+    /* Skip over assertive subpatterns */
+
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    do cc += GET(cc, 1); while (*cc == OP_ALT);
+    cc += PRIV(OP_lengths)[*cc];
+    break;
+
+    /* Skip over things that don't match chars */
+
+    case OP_MARK:
+    case OP_PRUNE_ARG:
+    case OP_SKIP_ARG:
+    case OP_THEN_ARG:
+    cc += cc[1] + PRIV(OP_lengths)[*cc];
+    break;
+
+    case OP_CALLOUT:
+    case OP_CIRC:
+    case OP_CIRCM:
+    case OP_CLOSE:
+    case OP_COMMIT:
+    case OP_CREF:
+    case OP_DEF:
+    case OP_DOLL:
+    case OP_DOLLM:
+    case OP_EOD:
+    case OP_EODN:
+    case OP_FAIL:
+    case OP_NCREF:
+    case OP_NRREF:
+    case OP_NOT_WORD_BOUNDARY:
+    case OP_PRUNE:
+    case OP_REVERSE:
+    case OP_RREF:
+    case OP_SET_SOM:
+    case OP_SKIP:
+    case OP_SOD:
+    case OP_SOM:
+    case OP_THEN:
+    case OP_WORD_BOUNDARY:
+    cc += PRIV(OP_lengths)[*cc];
+    break;
+
+    /* Handle literal characters */
+
+    case OP_CHAR:
+    case OP_CHARI:
+    case OP_NOT:
+    case OP_NOTI:
+    branchlength++;
+    cc += 2;
+#ifdef SUPPORT_UTF
+    if (utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+    break;
+
+    /* Handle exact repetitions. The count is already in characters, but we
+    need to skip over a multibyte character in UTF8 mode.  */
+
+    case OP_EXACT:
+    case OP_EXACTI:
+    case OP_NOTEXACT:
+    case OP_NOTEXACTI:
+    branchlength += GET2(cc,1);
+    cc += 2 + IMM2_SIZE;
+#ifdef SUPPORT_UTF
+    if (utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+    break;
+
+    case OP_TYPEEXACT:
+    branchlength += GET2(cc,1);
+    if (cc[1 + IMM2_SIZE] == OP_PROP || cc[1 + IMM2_SIZE] == OP_NOTPROP) cc += 2;
+    cc += 1 + IMM2_SIZE + 1;
+    break;
+
+    /* Handle single-char matchers */
+
+    case OP_PROP:
+    case OP_NOTPROP:
+    cc += 2;
+    /* Fall through */
+
+    case OP_HSPACE:
+    case OP_VSPACE:
+    case OP_NOT_HSPACE:
+    case OP_NOT_VSPACE:
+    case OP_NOT_DIGIT:
+    case OP_DIGIT:
+    case OP_NOT_WHITESPACE:
+    case OP_WHITESPACE:
+    case OP_NOT_WORDCHAR:
+    case OP_WORDCHAR:
+    case OP_ANY:
+    case OP_ALLANY:
+    branchlength++;
+    cc++;
+    break;
+
+    /* The single-byte matcher isn't allowed. This only happens in UTF-8 mode;
+    otherwise \C is coded as OP_ALLANY. */
+
+    case OP_ANYBYTE:
+    return -2;
+
+    /* Check a class for variable quantification */
+
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16
+    case OP_XCLASS:
+    cc += GET(cc, 1) - PRIV(OP_lengths)[OP_CLASS];
+    /* Fall through */
+#endif
+
+    case OP_CLASS:
+    case OP_NCLASS:
+    cc += PRIV(OP_lengths)[OP_CLASS];
+
+    switch (*cc)
+      {
+      case OP_CRPLUS:
+      case OP_CRMINPLUS:
+      case OP_CRSTAR:
+      case OP_CRMINSTAR:
+      case OP_CRQUERY:
+      case OP_CRMINQUERY:
+      return -1;
+
+      case OP_CRRANGE:
+      case OP_CRMINRANGE:
+      if (GET2(cc,1) != GET2(cc,1+IMM2_SIZE)) return -1;
+      branchlength += GET2(cc,1);
+      cc += 1 + 2 * IMM2_SIZE;
+      break;
+
+      default:
+      branchlength++;
+      }
+    break;
+
+    /* Anything else is variable length */
+
+    case OP_ANYNL:
+    case OP_BRAMINZERO:
+    case OP_BRAPOS:
+    case OP_BRAPOSZERO:
+    case OP_BRAZERO:
+    case OP_CBRAPOS:
+    case OP_EXTUNI:
+    case OP_KETRMAX:
+    case OP_KETRMIN:
+    case OP_KETRPOS:
+    case OP_MINPLUS:
+    case OP_MINPLUSI:
+    case OP_MINQUERY:
+    case OP_MINQUERYI:
+    case OP_MINSTAR:
+    case OP_MINSTARI:
+    case OP_MINUPTO:
+    case OP_MINUPTOI:
+    case OP_NOTMINPLUS:
+    case OP_NOTMINPLUSI:
+    case OP_NOTMINQUERY:
+    case OP_NOTMINQUERYI:
+    case OP_NOTMINSTAR:
+    case OP_NOTMINSTARI:
+    case OP_NOTMINUPTO:
+    case OP_NOTMINUPTOI:
+    case OP_NOTPLUS:
+    case OP_NOTPLUSI:
+    case OP_NOTPOSPLUS:
+    case OP_NOTPOSPLUSI:
+    case OP_NOTPOSQUERY:
+    case OP_NOTPOSQUERYI:
+    case OP_NOTPOSSTAR:
+    case OP_NOTPOSSTARI:
+    case OP_NOTPOSUPTO:
+    case OP_NOTPOSUPTOI:
+    case OP_NOTQUERY:
+    case OP_NOTQUERYI:
+    case OP_NOTSTAR:
+    case OP_NOTSTARI:
+    case OP_NOTUPTO:
+    case OP_NOTUPTOI:
+    case OP_PLUS:
+    case OP_PLUSI:
+    case OP_POSPLUS:
+    case OP_POSPLUSI:
+    case OP_POSQUERY:
+    case OP_POSQUERYI:
+    case OP_POSSTAR:
+    case OP_POSSTARI:
+    case OP_POSUPTO:
+    case OP_POSUPTOI:
+    case OP_QUERY:
+    case OP_QUERYI:
+    case OP_REF:
+    case OP_REFI:
+    case OP_SBRA:
+    case OP_SBRAPOS:
+    case OP_SCBRA:
+    case OP_SCBRAPOS:
+    case OP_SCOND:
+    case OP_SKIPZERO:
+    case OP_STAR:
+    case OP_STARI:
+    case OP_TYPEMINPLUS:
+    case OP_TYPEMINQUERY:
+    case OP_TYPEMINSTAR:
+    case OP_TYPEMINUPTO:
+    case OP_TYPEPLUS:
+    case OP_TYPEPOSPLUS:
+    case OP_TYPEPOSQUERY:
+    case OP_TYPEPOSSTAR:
+    case OP_TYPEPOSUPTO:
+    case OP_TYPEQUERY:
+    case OP_TYPESTAR:
+    case OP_TYPEUPTO:
+    case OP_UPTO:
+    case OP_UPTOI:
+    return -1;
+
+    /* Catch unrecognized opcodes so that when new ones are added they
+    are not forgotten, as has happened in the past. */
+
+    default:
+    return -4;
+    }
+  }
+/* Control never gets here */
+}
+
+
+
+
+/*************************************************
+*    Scan compiled regex for specific bracket    *
+*************************************************/
+
+/* This little function scans through a compiled pattern until it finds a
+capturing bracket with the given number, or, if the number is negative, an
+instance of OP_REVERSE for a lookbehind. The function is global in the C sense
+so that it can be called from pcre_study() when finding the minimum matching
+length.
+
+Arguments:
+  code        points to start of expression
+  utf         TRUE in UTF-8 / UTF-16 mode
+  number      the required bracket number or negative to find a lookbehind
+
+Returns:      pointer to the opcode for the bracket, or NULL if not found
+*/
+
+const pcre_uchar *
+PRIV(find_bracket)(const pcre_uchar *code, BOOL utf, int number)
+{
+for (;;)
+  {
+  register int c = *code;
+
+  if (c == OP_END) return NULL;
+
+  /* XCLASS is used for classes that cannot be represented just by a bit
+  map. This includes negated single high-valued characters. The length in
+  the table is zero; the actual length is stored in the compiled code. */
+
+  if (c == OP_XCLASS) code += GET(code, 1);
+
+  /* Handle recursion */
+
+  else if (c == OP_REVERSE)
+    {
+    if (number < 0) return (pcre_uchar *)code;
+    code += PRIV(OP_lengths)[c];
+    }
+
+  /* Handle capturing bracket */
+
+  else if (c == OP_CBRA || c == OP_SCBRA ||
+           c == OP_CBRAPOS || c == OP_SCBRAPOS)
+    {
+    int n = GET2(code, 1+LINK_SIZE);
+    if (n == number) return (pcre_uchar *)code;
+    code += PRIV(OP_lengths)[c];
+    }
+
+  /* Otherwise, we can get the item's length from the table, except that for
+  repeated character types, we have to test for \p and \P, which have an extra
+  two bytes of parameters, and for MARK/PRUNE/SKIP/THEN with an argument, we
+  must add in its length. */
+
+  else
+    {
+    switch(c)
+      {
+      case OP_TYPESTAR:
+      case OP_TYPEMINSTAR:
+      case OP_TYPEPLUS:
+      case OP_TYPEMINPLUS:
+      case OP_TYPEQUERY:
+      case OP_TYPEMINQUERY:
+      case OP_TYPEPOSSTAR:
+      case OP_TYPEPOSPLUS:
+      case OP_TYPEPOSQUERY:
+      if (code[1] == OP_PROP || code[1] == OP_NOTPROP) code += 2;
+      break;
+
+      case OP_TYPEUPTO:
+      case OP_TYPEMINUPTO:
+      case OP_TYPEEXACT:
+      case OP_TYPEPOSUPTO:
+      if (code[1 + IMM2_SIZE] == OP_PROP
+        || code[1 + IMM2_SIZE] == OP_NOTPROP) code += 2;
+      break;
+
+      case OP_MARK:
+      case OP_PRUNE_ARG:
+      case OP_SKIP_ARG:
+      code += code[1];
+      break;
+
+      case OP_THEN_ARG:
+      code += code[1];
+      break;
+      }
+
+    /* Add in the fixed length from the table */
+
+    code += PRIV(OP_lengths)[c];
+
+  /* In UTF-8 mode, opcodes that are followed by a character may be followed by
+  a multi-byte character. The length in the table is a minimum, so we have to
+  arrange to skip the extra bytes. */
+
+#ifdef SUPPORT_UTF
+    if (utf) switch(c)
+      {
+      case OP_CHAR:
+      case OP_CHARI:
+      case OP_EXACT:
+      case OP_EXACTI:
+      case OP_UPTO:
+      case OP_UPTOI:
+      case OP_MINUPTO:
+      case OP_MINUPTOI:
+      case OP_POSUPTO:
+      case OP_POSUPTOI:
+      case OP_STAR:
+      case OP_STARI:
+      case OP_MINSTAR:
+      case OP_MINSTARI:
+      case OP_POSSTAR:
+      case OP_POSSTARI:
+      case OP_PLUS:
+      case OP_PLUSI:
+      case OP_MINPLUS:
+      case OP_MINPLUSI:
+      case OP_POSPLUS:
+      case OP_POSPLUSI:
+      case OP_QUERY:
+      case OP_QUERYI:
+      case OP_MINQUERY:
+      case OP_MINQUERYI:
+      case OP_POSQUERY:
+      case OP_POSQUERYI:
+      if (HAS_EXTRALEN(code[-1])) code += GET_EXTRALEN(code[-1]);
+      break;
+      }
+#else
+    (void)(utf);  /* Keep compiler happy by referencing function argument */
+#endif
+    }
+  }
+}
+
+
+
+/*************************************************
+*   Scan compiled regex for recursion reference  *
+*************************************************/
+
+/* This little function scans through a compiled pattern until it finds an
+instance of OP_RECURSE.
+
+Arguments:
+  code        points to start of expression
+  utf         TRUE in UTF-8 / UTF-16 mode
+
+Returns:      pointer to the opcode for OP_RECURSE, or NULL if not found
+*/
+
+static const pcre_uchar *
+find_recurse(const pcre_uchar *code, BOOL utf)
+{
+for (;;)
+  {
+  register int c = *code;
+  if (c == OP_END) return NULL;
+  if (c == OP_RECURSE) return code;
+
+  /* XCLASS is used for classes that cannot be represented just by a bit
+  map. This includes negated single high-valued characters. The length in
+  the table is zero; the actual length is stored in the compiled code. */
+
+  if (c == OP_XCLASS) code += GET(code, 1);
+
+  /* Otherwise, we can get the item's length from the table, except that for
+  repeated character types, we have to test for \p and \P, which have an extra
+  two bytes of parameters, and for MARK/PRUNE/SKIP/THEN with an argument, we
+  must add in its length. */
+
+  else
+    {
+    switch(c)
+      {
+      case OP_TYPESTAR:
+      case OP_TYPEMINSTAR:
+      case OP_TYPEPLUS:
+      case OP_TYPEMINPLUS:
+      case OP_TYPEQUERY:
+      case OP_TYPEMINQUERY:
+      case OP_TYPEPOSSTAR:
+      case OP_TYPEPOSPLUS:
+      case OP_TYPEPOSQUERY:
+      if (code[1] == OP_PROP || code[1] == OP_NOTPROP) code += 2;
+      break;
+
+      case OP_TYPEPOSUPTO:
+      case OP_TYPEUPTO:
+      case OP_TYPEMINUPTO:
+      case OP_TYPEEXACT:
+      if (code[1 + IMM2_SIZE] == OP_PROP
+        || code[1 + IMM2_SIZE] == OP_NOTPROP) code += 2;
+      break;
+
+      case OP_MARK:
+      case OP_PRUNE_ARG:
+      case OP_SKIP_ARG:
+      code += code[1];
+      break;
+
+      case OP_THEN_ARG:
+      code += code[1];
+      break;
+      }
+
+    /* Add in the fixed length from the table */
+
+    code += PRIV(OP_lengths)[c];
+
+    /* In UTF-8 mode, opcodes that are followed by a character may be followed
+    by a multi-byte character. The length in the table is a minimum, so we have
+    to arrange to skip the extra bytes. */
+
+#ifdef SUPPORT_UTF
+    if (utf) switch(c)
+      {
+      case OP_CHAR:
+      case OP_CHARI:
+      case OP_NOT:
+      case OP_NOTI:
+      case OP_EXACT:
+      case OP_EXACTI:
+      case OP_NOTEXACT:
+      case OP_NOTEXACTI:
+      case OP_UPTO:
+      case OP_UPTOI:
+      case OP_NOTUPTO:
+      case OP_NOTUPTOI:
+      case OP_MINUPTO:
+      case OP_MINUPTOI:
+      case OP_NOTMINUPTO:
+      case OP_NOTMINUPTOI:
+      case OP_POSUPTO:
+      case OP_POSUPTOI:
+      case OP_NOTPOSUPTO:
+      case OP_NOTPOSUPTOI:
+      case OP_STAR:
+      case OP_STARI:
+      case OP_NOTSTAR:
+      case OP_NOTSTARI:
+      case OP_MINSTAR:
+      case OP_MINSTARI:
+      case OP_NOTMINSTAR:
+      case OP_NOTMINSTARI:
+      case OP_POSSTAR:
+      case OP_POSSTARI:
+      case OP_NOTPOSSTAR:
+      case OP_NOTPOSSTARI:
+      case OP_PLUS:
+      case OP_PLUSI:
+      case OP_NOTPLUS:
+      case OP_NOTPLUSI:
+      case OP_MINPLUS:
+      case OP_MINPLUSI:
+      case OP_NOTMINPLUS:
+      case OP_NOTMINPLUSI:
+      case OP_POSPLUS:
+      case OP_POSPLUSI:
+      case OP_NOTPOSPLUS:
+      case OP_NOTPOSPLUSI:
+      case OP_QUERY:
+      case OP_QUERYI:
+      case OP_NOTQUERY:
+      case OP_NOTQUERYI:
+      case OP_MINQUERY:
+      case OP_MINQUERYI:
+      case OP_NOTMINQUERY:
+      case OP_NOTMINQUERYI:
+      case OP_POSQUERY:
+      case OP_POSQUERYI:
+      case OP_NOTPOSQUERY:
+      case OP_NOTPOSQUERYI:
+      if (HAS_EXTRALEN(code[-1])) code += GET_EXTRALEN(code[-1]);
+      break;
+      }
+#else
+    (void)(utf);  /* Keep compiler happy by referencing function argument */
+#endif
+    }
+  }
+}
+
+
+
+/*************************************************
+*    Scan compiled branch for non-emptiness      *
+*************************************************/
+
+/* This function scans through a branch of a compiled pattern to see whether it
+can match the empty string or not. It is called from could_be_empty()
+below and from compile_branch() when checking for an unlimited repeat of a
+group that can match nothing. Note that first_significant_code() skips over
+backward and negative forward assertions when its final argument is TRUE. If we
+hit an unclosed bracket, we return "empty" - this means we've struck an inner
+bracket whose current branch will already have been scanned.
+
+Arguments:
+  code        points to start of search
+  endcode     points to where to stop
+  utf         TRUE if in UTF-8 / UTF-16 mode
+  cd          contains pointers to tables etc.
+
+Returns:      TRUE if what is matched could be empty
+*/
+
+static BOOL
+could_be_empty_branch(const pcre_uchar *code, const pcre_uchar *endcode,
+  BOOL utf, compile_data *cd)
+{
+register int c;
+for (code = first_significant_code(code + PRIV(OP_lengths)[*code], TRUE);
+     code < endcode;
+     code = first_significant_code(code + PRIV(OP_lengths)[c], TRUE))
+  {
+  const pcre_uchar *ccode;
+
+  c = *code;
+
+  /* Skip over forward assertions; the other assertions are skipped by
+  first_significant_code() with a TRUE final argument. */
+
+  if (c == OP_ASSERT)
+    {
+    do code += GET(code, 1); while (*code == OP_ALT);
+    c = *code;
+    continue;
+    }
+
+  /* For a recursion/subroutine call, if its end has been reached, which
+  implies a backward reference subroutine call, we can scan it. If it's a
+  forward reference subroutine call, we can't. To detect forward reference
+  we have to scan up the list that is kept in the workspace. This function is
+  called only when doing the real compile, not during the pre-compile that
+  measures the size of the compiled pattern. */
+
+  if (c == OP_RECURSE)
+    {
+    const pcre_uchar *scode;
+    BOOL empty_branch;
+
+    /* Test for forward reference */
+
+    for (scode = cd->start_workspace; scode < cd->hwm; scode += LINK_SIZE)
+      if (GET(scode, 0) == code + 1 - cd->start_code) return TRUE;
+
+    /* Not a forward reference, test for completed backward reference */
+
+    empty_branch = FALSE;
+    scode = cd->start_code + GET(code, 1);
+    if (GET(scode, 1) == 0) return TRUE;    /* Unclosed */
+
+    /* Completed backwards reference */
+
+    do
+      {
+      if (could_be_empty_branch(scode, endcode, utf, cd))
+        {
+        empty_branch = TRUE;
+        break;
+        }
+      scode += GET(scode, 1);
+      }
+    while (*scode == OP_ALT);
+
+    if (!empty_branch) return FALSE;  /* All branches are non-empty */
+    continue;
+    }
+
+  /* Groups with zero repeats can of course be empty; skip them. */
+
+  if (c == OP_BRAZERO || c == OP_BRAMINZERO || c == OP_SKIPZERO ||
+      c == OP_BRAPOSZERO)
+    {
+    code += PRIV(OP_lengths)[c];
+    do code += GET(code, 1); while (*code == OP_ALT);
+    c = *code;
+    continue;
+    }
+
+  /* A nested group that is already marked as "could be empty" can just be
+  skipped. */
+
+  if (c == OP_SBRA  || c == OP_SBRAPOS ||
+      c == OP_SCBRA || c == OP_SCBRAPOS)
+    {
+    do code += GET(code, 1); while (*code == OP_ALT);
+    c = *code;
+    continue;
+    }
+
+  /* For other groups, scan the branches. */
+
+  if (c == OP_BRA  || c == OP_BRAPOS ||
+      c == OP_CBRA || c == OP_CBRAPOS ||
+      c == OP_ONCE || c == OP_ONCE_NC ||
+      c == OP_COND)
+    {
+    BOOL empty_branch;
+    if (GET(code, 1) == 0) return TRUE;    /* Hit unclosed bracket */
+
+    /* If a conditional group has only one branch, there is a second, implied,
+    empty branch, so just skip over the conditional, because it could be empty.
+    Otherwise, scan the individual branches of the group. */
+
+    if (c == OP_COND && code[GET(code, 1)] != OP_ALT)
+      code += GET(code, 1);
+    else
+      {
+      empty_branch = FALSE;
+      do
+        {
+        if (!empty_branch && could_be_empty_branch(code, endcode, utf, cd))
+          empty_branch = TRUE;
+        code += GET(code, 1);
+        }
+      while (*code == OP_ALT);
+      if (!empty_branch) return FALSE;   /* All branches are non-empty */
+      }
+
+    c = *code;
+    continue;
+    }
+
+  /* Handle the other opcodes */
+
+  switch (c)
+    {
+    /* Check for quantifiers after a class. XCLASS is used for classes that
+    cannot be represented just by a bit map. This includes negated single
+    high-valued characters. The length in PRIV(OP_lengths)[] is zero; the
+    actual length is stored in the compiled code, so we must update "code"
+    here. */
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+    case OP_XCLASS:
+    ccode = code += GET(code, 1);
+    goto CHECK_CLASS_REPEAT;
+#endif
+
+    case OP_CLASS:
+    case OP_NCLASS:
+    ccode = code + PRIV(OP_lengths)[OP_CLASS];
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+    CHECK_CLASS_REPEAT:
+#endif
+
+    switch (*ccode)
+      {
+      case OP_CRSTAR:            /* These could be empty; continue */
+      case OP_CRMINSTAR:
+      case OP_CRQUERY:
+      case OP_CRMINQUERY:
+      break;
+
+      default:                   /* Non-repeat => class must match */
+      case OP_CRPLUS:            /* These repeats aren't empty */
+      case OP_CRMINPLUS:
+      return FALSE;
+
+      case OP_CRRANGE:
+      case OP_CRMINRANGE:
+      if (GET2(ccode, 1) > 0) return FALSE;  /* Minimum > 0 */
+      break;
+      }
+    break;
+
+    /* Opcodes that must match a character */
+
+    case OP_PROP:
+    case OP_NOTPROP:
+    case OP_EXTUNI:
+    case OP_NOT_DIGIT:
+    case OP_DIGIT:
+    case OP_NOT_WHITESPACE:
+    case OP_WHITESPACE:
+    case OP_NOT_WORDCHAR:
+    case OP_WORDCHAR:
+    case OP_ANY:
+    case OP_ALLANY:
+    case OP_ANYBYTE:
+    case OP_CHAR:
+    case OP_CHARI:
+    case OP_NOT:
+    case OP_NOTI:
+    case OP_PLUS:
+    case OP_MINPLUS:
+    case OP_POSPLUS:
+    case OP_EXACT:
+    case OP_NOTPLUS:
+    case OP_NOTMINPLUS:
+    case OP_NOTPOSPLUS:
+    case OP_NOTEXACT:
+    case OP_TYPEPLUS:
+    case OP_TYPEMINPLUS:
+    case OP_TYPEPOSPLUS:
+    case OP_TYPEEXACT:
+    return FALSE;
+
+    /* These are going to continue, as they may be empty, but we have to
+    fudge the length for the \p and \P cases. */
+
+    case OP_TYPESTAR:
+    case OP_TYPEMINSTAR:
+    case OP_TYPEPOSSTAR:
+    case OP_TYPEQUERY:
+    case OP_TYPEMINQUERY:
+    case OP_TYPEPOSQUERY:
+    if (code[1] == OP_PROP || code[1] == OP_NOTPROP) code += 2;
+    break;
+
+    /* Same for these */
+
+    case OP_TYPEUPTO:
+    case OP_TYPEMINUPTO:
+    case OP_TYPEPOSUPTO:
+    if (code[1 + IMM2_SIZE] == OP_PROP
+      || code[1 + IMM2_SIZE] == OP_NOTPROP) code += 2;
+    break;
+
+    /* End of branch */
+
+    case OP_KET:
+    case OP_KETRMAX:
+    case OP_KETRMIN:
+    case OP_KETRPOS:
+    case OP_ALT:
+    return TRUE;
+
+    /* In UTF-8 mode, STAR, MINSTAR, POSSTAR, QUERY, MINQUERY, POSQUERY, UPTO,
+    MINUPTO, and POSUPTO may be followed by a multibyte character */
+
+#ifdef SUPPORT_UTF
+    case OP_STAR:
+    case OP_STARI:
+    case OP_MINSTAR:
+    case OP_MINSTARI:
+    case OP_POSSTAR:
+    case OP_POSSTARI:
+    case OP_QUERY:
+    case OP_QUERYI:
+    case OP_MINQUERY:
+    case OP_MINQUERYI:
+    case OP_POSQUERY:
+    case OP_POSQUERYI:
+    if (utf && HAS_EXTRALEN(code[1])) code += GET_EXTRALEN(code[1]);
+    break;
+
+    case OP_UPTO:
+    case OP_UPTOI:
+    case OP_MINUPTO:
+    case OP_MINUPTOI:
+    case OP_POSUPTO:
+    case OP_POSUPTOI:
+    if (utf && HAS_EXTRALEN(code[1 + IMM2_SIZE])) code += GET_EXTRALEN(code[1 + IMM2_SIZE]);
+    break;
+#endif
+
+    /* MARK, and PRUNE/SKIP/THEN with an argument must skip over the argument
+    string. */
+
+    case OP_MARK:
+    case OP_PRUNE_ARG:
+    case OP_SKIP_ARG:
+    code += code[1];
+    break;
+
+    case OP_THEN_ARG:
+    code += code[1];
+    break;
+
+    /* None of the remaining opcodes are required to match a character. */
+
+    default:
+    break;
+    }
+  }
+
+return TRUE;
+}
+
+
+
+/*************************************************
+*    Scan compiled regex for non-emptiness       *
+*************************************************/
+
+/* This function is called to check for left recursive calls. We want to check
+the current branch of the current pattern to see if it could match the empty
+string. If it could, we must look outwards for branches at other levels,
+stopping when we pass beyond the bracket which is the subject of the recursion.
+This function is called only during the real compile, not during the
+pre-compile.
+
+Arguments:
+  code        points to start of the recursion
+  endcode     points to where to stop (current RECURSE item)
+  bcptr       points to the chain of current (unclosed) branch starts
+  utf         TRUE if in UTF-8 / UTF-16 mode
+  cd          pointers to tables etc
+
+Returns:      TRUE if what is matched could be empty
+*/
+
+static BOOL
+could_be_empty(const pcre_uchar *code, const pcre_uchar *endcode,
+  branch_chain *bcptr, BOOL utf, compile_data *cd)
+{
+while (bcptr != NULL && bcptr->current_branch >= code)
+  {
+  if (!could_be_empty_branch(bcptr->current_branch, endcode, utf, cd))
+    return FALSE;
+  bcptr = bcptr->outer;
+  }
+return TRUE;
+}
+
+
+
+/*************************************************
+*           Check for POSIX class syntax         *
+*************************************************/
+
+/* This function is called when the sequence "[:" or "[." or "[=" is
+encountered in a character class. It checks whether this is followed by a
+sequence of characters terminated by a matching ":]" or ".]" or "=]". If we
+reach an unescaped ']' without the special preceding character, return FALSE.
+
+Originally, this function only recognized a sequence of letters between the
+terminators, but it seems that Perl recognizes any sequence of characters,
+though of course unknown POSIX names are subsequently rejected. Perl gives an
+"Unknown POSIX class" error for [:f\oo:] for example, where previously PCRE
+didn't consider this to be a POSIX class. Likewise for [:1234:].
+
+The problem in trying to be exactly like Perl is in the handling of escapes. We
+have to be sure that [abc[:x\]pqr] is *not* treated as containing a POSIX
+class, but [abc[:x\]pqr:]] is (so that an error can be generated). The code
+below handles the special case of \], but does not try to do any other escape
+processing. This makes it different from Perl for cases such as [:l\ower:]
+where Perl recognizes it as the POSIX class "lower" but PCRE does not recognize
+"l\ower". This is a lesser evil that not diagnosing bad classes when Perl does,
+I think.
+
+A user pointed out that PCRE was rejecting [:a[:digit:]] whereas Perl was not.
+It seems that the appearance of a nested POSIX class supersedes an apparent
+external class. For example, [:a[:digit:]b:] matches "a", "b", ":", or
+a digit.
+
+In Perl, unescaped square brackets may also appear as part of class names. For
+example, [:a[:abc]b:] gives unknown POSIX class "[:abc]b:]". However, for
+[:a[:abc]b][b:] it gives unknown POSIX class "[:abc]b][b:]", which does not
+seem right at all. PCRE does not allow closing square brackets in POSIX class
+names.
+
+Arguments:
+  ptr      pointer to the initial [
+  endptr   where to return the end pointer
+
+Returns:   TRUE or FALSE
+*/
+
+static BOOL
+check_posix_syntax(const pcre_uchar *ptr, const pcre_uchar **endptr)
+{
+int terminator;          /* Don't combine these lines; the Solaris cc */
+terminator = *(++ptr);   /* compiler warns about "non-constant" initializer. */
+for (++ptr; *ptr != 0; ptr++)
+  {
+  if (*ptr == CHAR_BACKSLASH && ptr[1] == CHAR_RIGHT_SQUARE_BRACKET)
+    ptr++;
+  else if (*ptr == CHAR_RIGHT_SQUARE_BRACKET) return FALSE;
+  else
+    {
+    if (*ptr == terminator && ptr[1] == CHAR_RIGHT_SQUARE_BRACKET)
+      {
+      *endptr = ptr;
+      return TRUE;
+      }
+    if (*ptr == CHAR_LEFT_SQUARE_BRACKET &&
+         (ptr[1] == CHAR_COLON || ptr[1] == CHAR_DOT ||
+          ptr[1] == CHAR_EQUALS_SIGN) &&
+        check_posix_syntax(ptr, endptr))
+      return FALSE;
+    }
+  }
+return FALSE;
+}
+
+
+
+
+/*************************************************
+*          Check POSIX class name                *
+*************************************************/
+
+/* This function is called to check the name given in a POSIX-style class entry
+such as [:alnum:].
+
+Arguments:
+  ptr        points to the first letter
+  len        the length of the name
+
+Returns:     a value representing the name, or -1 if unknown
+*/
+
+static int
+check_posix_name(const pcre_uchar *ptr, int len)
+{
+const char *pn = posix_names;
+register int yield = 0;
+while (posix_name_lengths[yield] != 0)
+  {
+  if (len == posix_name_lengths[yield] &&
+    STRNCMP_UC_C8(ptr, pn, len) == 0) return yield;
+  pn += posix_name_lengths[yield] + 1;
+  yield++;
+  }
+return -1;
+}
+
+
+/*************************************************
+*    Adjust OP_RECURSE items in repeated group   *
+*************************************************/
+
+/* OP_RECURSE items contain an offset from the start of the regex to the group
+that is referenced. This means that groups can be replicated for fixed
+repetition simply by copying (because the recursion is allowed to refer to
+earlier groups that are outside the current group). However, when a group is
+optional (i.e. the minimum quantifier is zero), OP_BRAZERO or OP_SKIPZERO is
+inserted before it, after it has been compiled. This means that any OP_RECURSE
+items within it that refer to the group itself or any contained groups have to
+have their offsets adjusted. That one of the jobs of this function. Before it
+is called, the partially compiled regex must be temporarily terminated with
+OP_END.
+
+This function has been extended with the possibility of forward references for
+recursions and subroutine calls. It must also check the list of such references
+for the group we are dealing with. If it finds that one of the recursions in
+the current group is on this list, it adjusts the offset in the list, not the
+value in the reference (which is a group number).
+
+Arguments:
+  group      points to the start of the group
+  adjust     the amount by which the group is to be moved
+  utf        TRUE in UTF-8 / UTF-16 mode
+  cd         contains pointers to tables etc.
+  save_hwm   the hwm forward reference pointer at the start of the group
+
+Returns:     nothing
+*/
+
+static void
+adjust_recurse(pcre_uchar *group, int adjust, BOOL utf, compile_data *cd,
+  pcre_uchar *save_hwm)
+{
+pcre_uchar *ptr = group;
+
+while ((ptr = (pcre_uchar *)find_recurse(ptr, utf)) != NULL)
+  {
+  int offset;
+  pcre_uchar *hc;
+
+  /* See if this recursion is on the forward reference list. If so, adjust the
+  reference. */
+
+  for (hc = save_hwm; hc < cd->hwm; hc += LINK_SIZE)
+    {
+    offset = GET(hc, 0);
+    if (cd->start_code + offset == ptr + 1)
+      {
+      PUT(hc, 0, offset + adjust);
+      break;
+      }
+    }
+
+  /* Otherwise, adjust the recursion offset if it's after the start of this
+  group. */
+
+  if (hc >= cd->hwm)
+    {
+    offset = GET(ptr, 1);
+    if (cd->start_code + offset >= group) PUT(ptr, 1, offset + adjust);
+    }
+
+  ptr += 1 + LINK_SIZE;
+  }
+}
+
+
+
+/*************************************************
+*        Insert an automatic callout point       *
+*************************************************/
+
+/* This function is called when the PCRE_AUTO_CALLOUT option is set, to insert
+callout points before each pattern item.
+
+Arguments:
+  code           current code pointer
+  ptr            current pattern pointer
+  cd             pointers to tables etc
+
+Returns:         new code pointer
+*/
+
+static pcre_uchar *
+auto_callout(pcre_uchar *code, const pcre_uchar *ptr, compile_data *cd)
+{
+*code++ = OP_CALLOUT;
+*code++ = 255;
+PUT(code, 0, (int)(ptr - cd->start_pattern));  /* Pattern offset */
+PUT(code, LINK_SIZE, 0);                       /* Default length */
+return code + 2 * LINK_SIZE;
+}
+
+
+
+/*************************************************
+*         Complete a callout item                *
+*************************************************/
+
+/* A callout item contains the length of the next item in the pattern, which
+we can't fill in till after we have reached the relevant point. This is used
+for both automatic and manual callouts.
+
+Arguments:
+  previous_callout   points to previous callout item
+  ptr                current pattern pointer
+  cd                 pointers to tables etc
+
+Returns:             nothing
+*/
+
+static void
+complete_callout(pcre_uchar *previous_callout, const pcre_uchar *ptr, compile_data *cd)
+{
+int length = (int)(ptr - cd->start_pattern - GET(previous_callout, 2));
+PUT(previous_callout, 2 + LINK_SIZE, length);
+}
+
+
+
+#ifdef SUPPORT_UCP
+/*************************************************
+*           Get othercase range                  *
+*************************************************/
+
+/* This function is passed the start and end of a class range, in UTF-8 mode
+with UCP support. It searches up the characters, looking for internal ranges of
+characters in the "other" case. Each call returns the next one, updating the
+start address.
+
+Arguments:
+  cptr        points to starting character value; updated
+  d           end value
+  ocptr       where to put start of othercase range
+  odptr       where to put end of othercase range
+
+Yield:        TRUE when range returned; FALSE when no more
+*/
+
+static BOOL
+get_othercase_range(unsigned int *cptr, unsigned int d, unsigned int *ocptr,
+  unsigned int *odptr)
+{
+unsigned int c, othercase, next;
+
+for (c = *cptr; c <= d; c++)
+  { if ((othercase = UCD_OTHERCASE(c)) != c) break; }
+
+if (c > d) return FALSE;
+
+*ocptr = othercase;
+next = othercase + 1;
+
+for (++c; c <= d; c++)
+  {
+  if (UCD_OTHERCASE(c) != next) break;
+  next++;
+  }
+
+*odptr = next - 1;
+*cptr = c;
+
+return TRUE;
+}
+
+
+
+/*************************************************
+*        Check a character and a property        *
+*************************************************/
+
+/* This function is called by check_auto_possessive() when a property item
+is adjacent to a fixed character.
+
+Arguments:
+  c            the character
+  ptype        the property type
+  pdata        the data for the type
+  negated      TRUE if it's a negated property (\P or \p{^)
+
+Returns:       TRUE if auto-possessifying is OK
+*/
+
+static BOOL
+check_char_prop(int c, int ptype, int pdata, BOOL negated)
+{
+const ucd_record *prop = GET_UCD(c);
+switch(ptype)
+  {
+  case PT_LAMP:
+  return (prop->chartype == ucp_Lu ||
+          prop->chartype == ucp_Ll ||
+          prop->chartype == ucp_Lt) == negated;
+
+  case PT_GC:
+  return (pdata == PRIV(ucp_gentype)[prop->chartype]) == negated;
+
+  case PT_PC:
+  return (pdata == prop->chartype) == negated;
+
+  case PT_SC:
+  return (pdata == prop->script) == negated;
+
+  /* These are specials */
+
+  case PT_ALNUM:
+  return (PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+          PRIV(ucp_gentype)[prop->chartype] == ucp_N) == negated;
+
+  case PT_SPACE:    /* Perl space */
+  return (PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+          c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR)
+          == negated;
+
+  case PT_PXSPACE:  /* POSIX space */
+  return (PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+          c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
+          c == CHAR_FF || c == CHAR_CR)
+          == negated;
+
+  case PT_WORD:
+  return (PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+          PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
+          c == CHAR_UNDERSCORE) == negated;
+  }
+return FALSE;
+}
+#endif  /* SUPPORT_UCP */
+
+
+
+/*************************************************
+*     Check if auto-possessifying is possible    *
+*************************************************/
+
+/* This function is called for unlimited repeats of certain items, to see
+whether the next thing could possibly match the repeated item. If not, it makes
+sense to automatically possessify the repeated item.
+
+Arguments:
+  previous      pointer to the repeated opcode
+  utf           TRUE in UTF-8 / UTF-16 mode
+  ptr           next character in pattern
+  options       options bits
+  cd            contains pointers to tables etc.
+
+Returns:        TRUE if possessifying is wanted
+*/
+
+static BOOL
+check_auto_possessive(const pcre_uchar *previous, BOOL utf,
+  const pcre_uchar *ptr, int options, compile_data *cd)
+{
+pcre_int32 c, next;
+int op_code = *previous++;
+
+/* Skip whitespace and comments in extended mode */
+
+if ((options & PCRE_EXTENDED) != 0)
+  {
+  for (;;)
+    {
+    while (MAX_255(*ptr) && (cd->ctypes[*ptr] & ctype_space) != 0) ptr++;
+    if (*ptr == CHAR_NUMBER_SIGN)
+      {
+      ptr++;
+      while (*ptr != 0)
+        {
+        if (IS_NEWLINE(ptr)) { ptr += cd->nllen; break; }
+        ptr++;
+#ifdef SUPPORT_UTF
+        if (utf) FORWARDCHAR(ptr);
+#endif
+        }
+      }
+    else break;
+    }
+  }
+
+/* If the next item is one that we can handle, get its value. A non-negative
+value is a character, a negative value is an escape value. */
+
+if (*ptr == CHAR_BACKSLASH)
+  {
+  int temperrorcode = 0;
+  next = check_escape(&ptr, &temperrorcode, cd->bracount, options, FALSE);
+  if (temperrorcode != 0) return FALSE;
+  ptr++;    /* Point after the escape sequence */
+  }
+else if (!MAX_255(*ptr) || (cd->ctypes[*ptr] & ctype_meta) == 0)
+  {
+#ifdef SUPPORT_UTF
+  if (utf) { GETCHARINC(next, ptr); } else
+#endif
+  next = *ptr++;
+  }
+else return FALSE;
+
+/* Skip whitespace and comments in extended mode */
+
+if ((options & PCRE_EXTENDED) != 0)
+  {
+  for (;;)
+    {
+    while (MAX_255(*ptr) && (cd->ctypes[*ptr] & ctype_space) != 0) ptr++;
+    if (*ptr == CHAR_NUMBER_SIGN)
+      {
+      ptr++;
+      while (*ptr != 0)
+        {
+        if (IS_NEWLINE(ptr)) { ptr += cd->nllen; break; }
+        ptr++;
+#ifdef SUPPORT_UTF
+        if (utf) FORWARDCHAR(ptr);
+#endif
+        }
+      }
+    else break;
+    }
+  }
+
+/* If the next thing is itself optional, we have to give up. */
+
+if (*ptr == CHAR_ASTERISK || *ptr == CHAR_QUESTION_MARK ||
+  STRNCMP_UC_C8(ptr, STR_LEFT_CURLY_BRACKET STR_0 STR_COMMA, 3) == 0)
+    return FALSE;
+
+/* Now compare the next item with the previous opcode. First, handle cases when
+the next item is a character. */
+
+if (next >= 0) switch(op_code)
+  {
+  case OP_CHAR:
+#ifdef SUPPORT_UTF
+  GETCHARTEST(c, previous);
+#else
+  c = *previous;
+#endif
+  return c != next;
+
+  /* For CHARI (caseless character) we must check the other case. If we have
+  Unicode property support, we can use it to test the other case of
+  high-valued characters. */
+
+  case OP_CHARI:
+#ifdef SUPPORT_UTF
+  GETCHARTEST(c, previous);
+#else
+  c = *previous;
+#endif
+  if (c == next) return FALSE;
+#ifdef SUPPORT_UTF
+  if (utf)
+    {
+    unsigned int othercase;
+    if (next < 128) othercase = cd->fcc[next]; else
+#ifdef SUPPORT_UCP
+    othercase = UCD_OTHERCASE((unsigned int)next);
+#else
+    othercase = NOTACHAR;
+#endif
+    return (unsigned int)c != othercase;
+    }
+  else
+#endif  /* SUPPORT_UTF */
+  return (c != TABLE_GET((unsigned int)next, cd->fcc, next));  /* Non-UTF-8 mode */
+
+  case OP_NOT:
+#ifdef SUPPORT_UTF
+  GETCHARTEST(c, previous);
+#else
+  c = *previous;
+#endif
+  return c == next;
+
+  case OP_NOTI:
+#ifdef SUPPORT_UTF
+  GETCHARTEST(c, previous);
+#else
+  c = *previous;
+#endif
+  if (c == next) return TRUE;
+#ifdef SUPPORT_UTF
+  if (utf)
+    {
+    unsigned int othercase;
+    if (next < 128) othercase = cd->fcc[next]; else
+#ifdef SUPPORT_UCP
+    othercase = UCD_OTHERCASE((unsigned int)next);
+#else
+    othercase = NOTACHAR;
+#endif
+    return (unsigned int)c == othercase;
+    }
+  else
+#endif  /* SUPPORT_UTF */
+  return (c == TABLE_GET((unsigned int)next, cd->fcc, next));  /* Non-UTF-8 mode */
+
+  /* Note that OP_DIGIT etc. are generated only when PCRE_UCP is *not* set.
+  When it is set, \d etc. are converted into OP_(NOT_)PROP codes. */
+
+  case OP_DIGIT:
+  return next > 255 || (cd->ctypes[next] & ctype_digit) == 0;
+
+  case OP_NOT_DIGIT:
+  return next <= 255 && (cd->ctypes[next] & ctype_digit) != 0;
+
+  case OP_WHITESPACE:
+  return next > 255 || (cd->ctypes[next] & ctype_space) == 0;
+
+  case OP_NOT_WHITESPACE:
+  return next <= 255 && (cd->ctypes[next] & ctype_space) != 0;
+
+  case OP_WORDCHAR:
+  return next > 255 || (cd->ctypes[next] & ctype_word) == 0;
+
+  case OP_NOT_WORDCHAR:
+  return next <= 255 && (cd->ctypes[next] & ctype_word) != 0;
+
+  case OP_HSPACE:
+  case OP_NOT_HSPACE:
+  switch(next)
+    {
+    case 0x09:
+    case 0x20:
+    case 0xa0:
+    case 0x1680:
+    case 0x180e:
+    case 0x2000:
+    case 0x2001:
+    case 0x2002:
+    case 0x2003:
+    case 0x2004:
+    case 0x2005:
+    case 0x2006:
+    case 0x2007:
+    case 0x2008:
+    case 0x2009:
+    case 0x200A:
+    case 0x202f:
+    case 0x205f:
+    case 0x3000:
+    return op_code == OP_NOT_HSPACE;
+    default:
+    return op_code != OP_NOT_HSPACE;
+    }
+
+  case OP_ANYNL:
+  case OP_VSPACE:
+  case OP_NOT_VSPACE:
+  switch(next)
+    {
+    case 0x0a:
+    case 0x0b:
+    case 0x0c:
+    case 0x0d:
+    case 0x85:
+    case 0x2028:
+    case 0x2029:
+    return op_code == OP_NOT_VSPACE;
+    default:
+    return op_code != OP_NOT_VSPACE;
+    }
+
+#ifdef SUPPORT_UCP
+  case OP_PROP:
+  return check_char_prop(next, previous[0], previous[1], FALSE);
+
+  case OP_NOTPROP:
+  return check_char_prop(next, previous[0], previous[1], TRUE);
+#endif
+
+  default:
+  return FALSE;
+  }
+
+
+/* Handle the case when the next item is \d, \s, etc. Note that when PCRE_UCP
+is set, \d turns into ESC_du rather than ESC_d, etc., so ESC_d etc. are
+generated only when PCRE_UCP is *not* set, that is, when only ASCII
+characteristics are recognized. Similarly, the opcodes OP_DIGIT etc. are
+replaced by OP_PROP codes when PCRE_UCP is set. */
+
+switch(op_code)
+  {
+  case OP_CHAR:
+  case OP_CHARI:
+#ifdef SUPPORT_UTF
+  GETCHARTEST(c, previous);
+#else
+  c = *previous;
+#endif
+  switch(-next)
+    {
+    case ESC_d:
+    return c > 255 || (cd->ctypes[c] & ctype_digit) == 0;
+
+    case ESC_D:
+    return c <= 255 && (cd->ctypes[c] & ctype_digit) != 0;
+
+    case ESC_s:
+    return c > 255 || (cd->ctypes[c] & ctype_space) == 0;
+
+    case ESC_S:
+    return c <= 255 && (cd->ctypes[c] & ctype_space) != 0;
+
+    case ESC_w:
+    return c > 255 || (cd->ctypes[c] & ctype_word) == 0;
+
+    case ESC_W:
+    return c <= 255 && (cd->ctypes[c] & ctype_word) != 0;
+
+    case ESC_h:
+    case ESC_H:
+    switch(c)
+      {
+      case 0x09:
+      case 0x20:
+      case 0xa0:
+      case 0x1680:
+      case 0x180e:
+      case 0x2000:
+      case 0x2001:
+      case 0x2002:
+      case 0x2003:
+      case 0x2004:
+      case 0x2005:
+      case 0x2006:
+      case 0x2007:
+      case 0x2008:
+      case 0x2009:
+      case 0x200A:
+      case 0x202f:
+      case 0x205f:
+      case 0x3000:
+      return -next != ESC_h;
+      default:
+      return -next == ESC_h;
+      }
+
+    case ESC_v:
+    case ESC_V:
+    switch(c)
+      {
+      case 0x0a:
+      case 0x0b:
+      case 0x0c:
+      case 0x0d:
+      case 0x85:
+      case 0x2028:
+      case 0x2029:
+      return -next != ESC_v;
+      default:
+      return -next == ESC_v;
+      }
+
+    /* When PCRE_UCP is set, these values get generated for \d etc. Find
+    their substitutions and process them. The result will always be either
+    -ESC_p or -ESC_P. Then fall through to process those values. */
+
+#ifdef SUPPORT_UCP
+    case ESC_du:
+    case ESC_DU:
+    case ESC_wu:
+    case ESC_WU:
+    case ESC_su:
+    case ESC_SU:
+      {
+      int temperrorcode = 0;
+      ptr = substitutes[-next - ESC_DU];
+      next = check_escape(&ptr, &temperrorcode, 0, options, FALSE);
+      if (temperrorcode != 0) return FALSE;
+      ptr++;    /* For compatibility */
+      }
+    /* Fall through */
+
+    case ESC_p:
+    case ESC_P:
+      {
+      int ptype, pdata, errorcodeptr;
+      BOOL negated;
+
+      ptr--;      /* Make ptr point at the p or P */
+      ptype = get_ucp(&ptr, &negated, &pdata, &errorcodeptr);
+      if (ptype < 0) return FALSE;
+      ptr++;      /* Point past the final curly ket */
+
+      /* If the property item is optional, we have to give up. (When generated
+      from \d etc by PCRE_UCP, this test will have been applied much earlier,
+      to the original \d etc. At this point, ptr will point to a zero byte. */
+
+      if (*ptr == CHAR_ASTERISK || *ptr == CHAR_QUESTION_MARK ||
+        STRNCMP_UC_C8(ptr, STR_LEFT_CURLY_BRACKET STR_0 STR_COMMA, 3) == 0)
+          return FALSE;
+
+      /* Do the property check. */
+
+      return check_char_prop(c, ptype, pdata, (next == -ESC_P) != negated);
+      }
+#endif
+
+    default:
+    return FALSE;
+    }
+
+  /* In principle, support for Unicode properties should be integrated here as
+  well. It means re-organizing the above code so as to get hold of the property
+  values before switching on the op-code. However, I wonder how many patterns
+  combine ASCII \d etc with Unicode properties? (Note that if PCRE_UCP is set,
+  these op-codes are never generated.) */
+
+  case OP_DIGIT:
+  return next == -ESC_D || next == -ESC_s || next == -ESC_W ||
+         next == -ESC_h || next == -ESC_v || next == -ESC_R;
+
+  case OP_NOT_DIGIT:
+  return next == -ESC_d;
+
+  case OP_WHITESPACE:
+  return next == -ESC_S || next == -ESC_d || next == -ESC_w;
+
+  case OP_NOT_WHITESPACE:
+  return next == -ESC_s || next == -ESC_h || next == -ESC_v || next == -ESC_R;
+
+  case OP_HSPACE:
+  return next == -ESC_S || next == -ESC_H || next == -ESC_d ||
+         next == -ESC_w || next == -ESC_v || next == -ESC_R;
+
+  case OP_NOT_HSPACE:
+  return next == -ESC_h;
+
+  /* Can't have \S in here because VT matches \S (Perl anomaly) */
+  case OP_ANYNL:
+  case OP_VSPACE:
+  return next == -ESC_V || next == -ESC_d || next == -ESC_w;
+
+  case OP_NOT_VSPACE:
+  return next == -ESC_v || next == -ESC_R;
+
+  case OP_WORDCHAR:
+  return next == -ESC_W || next == -ESC_s || next == -ESC_h ||
+         next == -ESC_v || next == -ESC_R;
+
+  case OP_NOT_WORDCHAR:
+  return next == -ESC_w || next == -ESC_d;
+
+  default:
+  return FALSE;
+  }
+
+/* Control does not reach here */
+}
+
+
+
+/*************************************************
+*           Compile one branch                   *
+*************************************************/
+
+/* Scan the pattern, compiling it into the a vector. If the options are
+changed during the branch, the pointer is used to change the external options
+bits. This function is used during the pre-compile phase when we are trying
+to find out the amount of memory needed, as well as during the real compile
+phase. The value of lengthptr distinguishes the two phases.
+
+Arguments:
+  optionsptr     pointer to the option bits
+  codeptr        points to the pointer to the current code point
+  ptrptr         points to the current pattern pointer
+  errorcodeptr   points to error code variable
+  firstcharptr   set to initial literal character, or < 0 (REQ_UNSET, REQ_NONE)
+  reqcharptr     set to the last literal character required, else < 0
+  bcptr          points to current branch chain
+  cond_depth     conditional nesting depth
+  cd             contains pointers to tables etc.
+  lengthptr      NULL during the real compile phase
+                 points to length accumulator during pre-compile phase
+
+Returns:         TRUE on success
+                 FALSE, with *errorcodeptr set non-zero on error
+*/
+
+static BOOL
+compile_branch(int *optionsptr, pcre_uchar **codeptr,
+  const pcre_uchar **ptrptr, int *errorcodeptr, pcre_int32 *firstcharptr,
+  pcre_int32 *reqcharptr, branch_chain *bcptr, int cond_depth,
+  compile_data *cd, int *lengthptr)
+{
+int repeat_type, op_type;
+int repeat_min = 0, repeat_max = 0;      /* To please picky compilers */
+int bravalue = 0;
+int greedy_default, greedy_non_default;
+pcre_int32 firstchar, reqchar;
+pcre_int32 zeroreqchar, zerofirstchar;
+pcre_int32 req_caseopt, reqvary, tempreqvary;
+int options = *optionsptr;               /* May change dynamically */
+int after_manual_callout = 0;
+int length_prevgroup = 0;
+register int c;
+register pcre_uchar *code = *codeptr;
+pcre_uchar *last_code = code;
+pcre_uchar *orig_code = code;
+pcre_uchar *tempcode;
+BOOL inescq = FALSE;
+BOOL groupsetfirstchar = FALSE;
+const pcre_uchar *ptr = *ptrptr;
+const pcre_uchar *tempptr;
+const pcre_uchar *nestptr = NULL;
+pcre_uchar *previous = NULL;
+pcre_uchar *previous_callout = NULL;
+pcre_uchar *save_hwm = NULL;
+pcre_uint8 classbits[32];
+
+/* We can fish out the UTF-8 setting once and for all into a BOOL, but we
+must not do this for other options (e.g. PCRE_EXTENDED) because they may change
+dynamically as we process the pattern. */
+
+#ifdef SUPPORT_UTF
+/* PCRE_UTF16 has the same value as PCRE_UTF8. */
+BOOL utf = (options & PCRE_UTF8) != 0;
+pcre_uchar utf_chars[6];
+#else
+BOOL utf = FALSE;
+#endif
+
+/* Helper variables for OP_XCLASS opcode (for characters > 255). */
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+BOOL xclass;
+pcre_uchar *class_uchardata;
+pcre_uchar *class_uchardata_base;
+#endif
+
+#ifdef PCRE_DEBUG
+if (lengthptr != NULL) DPRINTF((">> start branch\n"));
+#endif
+
+/* Set up the default and non-default settings for greediness */
+
+greedy_default = ((options & PCRE_UNGREEDY) != 0);
+greedy_non_default = greedy_default ^ 1;
+
+/* Initialize no first byte, no required byte. REQ_UNSET means "no char
+matching encountered yet". It gets changed to REQ_NONE if we hit something that
+matches a non-fixed char first char; reqchar just remains unset if we never
+find one.
+
+When we hit a repeat whose minimum is zero, we may have to adjust these values
+to take the zero repeat into account. This is implemented by setting them to
+zerofirstbyte and zeroreqchar when such a repeat is encountered. The individual
+item types that can be repeated set these backoff variables appropriately. */
+
+firstchar = reqchar = zerofirstchar = zeroreqchar = REQ_UNSET;
+
+/* The variable req_caseopt contains either the REQ_CASELESS value
+or zero, according to the current setting of the caseless flag. The
+REQ_CASELESS leaves the lower 28 bit empty. It is added into the
+firstchar or reqchar variables to record the case status of the
+value. This is used only for ASCII characters. */
+
+req_caseopt = ((options & PCRE_CASELESS) != 0)? REQ_CASELESS:0;
+
+/* Switch on next character until the end of the branch */
+
+for (;; ptr++)
+  {
+  BOOL negate_class;
+  BOOL should_flip_negation;
+  BOOL possessive_quantifier;
+  BOOL is_quantifier;
+  BOOL is_recurse;
+  BOOL reset_bracount;
+  int class_has_8bitchar;
+  int class_single_char;
+  int newoptions;
+  int recno;
+  int refsign;
+  int skipbytes;
+  int subreqchar;
+  int subfirstchar;
+  int terminator;
+  int mclength;
+  int tempbracount;
+  pcre_uchar mcbuffer[8];
+
+  /* Get next character in the pattern */
+
+  c = *ptr;
+
+  /* If we are at the end of a nested substitution, revert to the outer level
+  string. Nesting only happens one level deep. */
+
+  if (c == 0 && nestptr != NULL)
+    {
+    ptr = nestptr;
+    nestptr = NULL;
+    c = *ptr;
+    }
+
+  /* If we are in the pre-compile phase, accumulate the length used for the
+  previous cycle of this loop. */
+
+  if (lengthptr != NULL)
+    {
+#ifdef PCRE_DEBUG
+    if (code > cd->hwm) cd->hwm = code;                 /* High water info */
+#endif
+    if (code > cd->start_workspace + cd->workspace_size -
+        WORK_SIZE_SAFETY_MARGIN)                       /* Check for overrun */
+      {
+      *errorcodeptr = ERR52;
+      goto FAILED;
+      }
+
+    /* There is at least one situation where code goes backwards: this is the
+    case of a zero quantifier after a class (e.g. [ab]{0}). At compile time,
+    the class is simply eliminated. However, it is created first, so we have to
+    allow memory for it. Therefore, don't ever reduce the length at this point.
+    */
+
+    if (code < last_code) code = last_code;
+
+    /* Paranoid check for integer overflow */
+
+    if (OFLOW_MAX - *lengthptr < code - last_code)
+      {
+      *errorcodeptr = ERR20;
+      goto FAILED;
+      }
+
+    *lengthptr += (int)(code - last_code);
+    DPRINTF(("length=%d added %d c=%c (0x%x)\n", *lengthptr,
+      (int)(code - last_code), c, c));
+
+    /* If "previous" is set and it is not at the start of the work space, move
+    it back to there, in order to avoid filling up the work space. Otherwise,
+    if "previous" is NULL, reset the current code pointer to the start. */
+
+    if (previous != NULL)
+      {
+      if (previous > orig_code)
+        {
+        memmove(orig_code, previous, IN_UCHARS(code - previous));
+        code -= previous - orig_code;
+        previous = orig_code;
+        }
+      }
+    else code = orig_code;
+
+    /* Remember where this code item starts so we can pick up the length
+    next time round. */
+
+    last_code = code;
+    }
+
+  /* In the real compile phase, just check the workspace used by the forward
+  reference list. */
+
+  else if (cd->hwm > cd->start_workspace + cd->workspace_size -
+           WORK_SIZE_SAFETY_MARGIN)
+    {
+    *errorcodeptr = ERR52;
+    goto FAILED;
+    }
+
+  /* If in \Q...\E, check for the end; if not, we have a literal */
+
+  if (inescq && c != 0)
+    {
+    if (c == CHAR_BACKSLASH && ptr[1] == CHAR_E)
+      {
+      inescq = FALSE;
+      ptr++;
+      continue;
+      }
+    else
+      {
+      if (previous_callout != NULL)
+        {
+        if (lengthptr == NULL)  /* Don't attempt in pre-compile phase */
+          complete_callout(previous_callout, ptr, cd);
+        previous_callout = NULL;
+        }
+      if ((options & PCRE_AUTO_CALLOUT) != 0)
+        {
+        previous_callout = code;
+        code = auto_callout(code, ptr, cd);
+        }
+      goto NORMAL_CHAR;
+      }
+    }
+
+  /* Fill in length of a previous callout, except when the next thing is
+  a quantifier. */
+
+  is_quantifier =
+    c == CHAR_ASTERISK || c == CHAR_PLUS || c == CHAR_QUESTION_MARK ||
+    (c == CHAR_LEFT_CURLY_BRACKET && is_counted_repeat(ptr+1));
+
+  if (!is_quantifier && previous_callout != NULL &&
+       after_manual_callout-- <= 0)
+    {
+    if (lengthptr == NULL)      /* Don't attempt in pre-compile phase */
+      complete_callout(previous_callout, ptr, cd);
+    previous_callout = NULL;
+    }
+
+  /* In extended mode, skip white space and comments. */
+
+  if ((options & PCRE_EXTENDED) != 0)
+    {
+    if (MAX_255(*ptr) && (cd->ctypes[c] & ctype_space) != 0) continue;
+    if (c == CHAR_NUMBER_SIGN)
+      {
+      ptr++;
+      while (*ptr != 0)
+        {
+        if (IS_NEWLINE(ptr)) { ptr += cd->nllen - 1; break; }
+        ptr++;
+#ifdef SUPPORT_UTF
+        if (utf) FORWARDCHAR(ptr);
+#endif
+        }
+      if (*ptr != 0) continue;
+
+      /* Else fall through to handle end of string */
+      c = 0;
+      }
+    }
+
+  /* No auto callout for quantifiers. */
+
+  if ((options & PCRE_AUTO_CALLOUT) != 0 && !is_quantifier)
+    {
+    previous_callout = code;
+    code = auto_callout(code, ptr, cd);
+    }
+
+  switch(c)
+    {
+    /* ===================================================================*/
+    case 0:                        /* The branch terminates at string end */
+    case CHAR_VERTICAL_LINE:       /* or | or ) */
+    case CHAR_RIGHT_PARENTHESIS:
+    *firstcharptr = firstchar;
+    *reqcharptr = reqchar;
+    *codeptr = code;
+    *ptrptr = ptr;
+    if (lengthptr != NULL)
+      {
+      if (OFLOW_MAX - *lengthptr < code - last_code)
+        {
+        *errorcodeptr = ERR20;
+        goto FAILED;
+        }
+      *lengthptr += (int)(code - last_code);   /* To include callout length */
+      DPRINTF((">> end branch\n"));
+      }
+    return TRUE;
+
+
+    /* ===================================================================*/
+    /* Handle single-character metacharacters. In multiline mode, ^ disables
+    the setting of any following char as a first character. */
+
+    case CHAR_CIRCUMFLEX_ACCENT:
+    previous = NULL;
+    if ((options & PCRE_MULTILINE) != 0)
+      {
+      if (firstchar == REQ_UNSET) firstchar = REQ_NONE;
+      *code++ = OP_CIRCM;
+      }
+    else *code++ = OP_CIRC;
+    break;
+
+    case CHAR_DOLLAR_SIGN:
+    previous = NULL;
+    *code++ = ((options & PCRE_MULTILINE) != 0)? OP_DOLLM : OP_DOLL;
+    break;
+
+    /* There can never be a first char if '.' is first, whatever happens about
+    repeats. The value of reqchar doesn't change either. */
+
+    case CHAR_DOT:
+    if (firstchar == REQ_UNSET) firstchar = REQ_NONE;
+    zerofirstchar = firstchar;
+    zeroreqchar = reqchar;
+    previous = code;
+    *code++ = ((options & PCRE_DOTALL) != 0)? OP_ALLANY: OP_ANY;
+    break;
+
+
+    /* ===================================================================*/
+    /* Character classes. If the included characters are all < 256, we build a
+    32-byte bitmap of the permitted characters, except in the special case
+    where there is only one such character. For negated classes, we build the
+    map as usual, then invert it at the end. However, we use a different opcode
+    so that data characters > 255 can be handled correctly.
+
+    If the class contains characters outside the 0-255 range, a different
+    opcode is compiled. It may optionally have a bit map for characters < 256,
+    but those above are are explicitly listed afterwards. A flag byte tells
+    whether the bitmap is present, and whether this is a negated class or not.
+
+    In JavaScript compatibility mode, an isolated ']' causes an error. In
+    default (Perl) mode, it is treated as a data character. */
+
+    case CHAR_RIGHT_SQUARE_BRACKET:
+    if ((cd->external_options & PCRE_JAVASCRIPT_COMPAT) != 0)
+      {
+      *errorcodeptr = ERR64;
+      goto FAILED;
+      }
+    goto NORMAL_CHAR;
+
+    case CHAR_LEFT_SQUARE_BRACKET:
+    previous = code;
+
+    /* PCRE supports POSIX class stuff inside a class. Perl gives an error if
+    they are encountered at the top level, so we'll do that too. */
+
+    if ((ptr[1] == CHAR_COLON || ptr[1] == CHAR_DOT ||
+         ptr[1] == CHAR_EQUALS_SIGN) &&
+        check_posix_syntax(ptr, &tempptr))
+      {
+      *errorcodeptr = (ptr[1] == CHAR_COLON)? ERR13 : ERR31;
+      goto FAILED;
+      }
+
+    /* If the first character is '^', set the negation flag and skip it. Also,
+    if the first few characters (either before or after ^) are \Q\E or \E we
+    skip them too. This makes for compatibility with Perl. */
+
+    negate_class = FALSE;
+    for (;;)
+      {
+      c = *(++ptr);
+      if (c == CHAR_BACKSLASH)
+        {
+        if (ptr[1] == CHAR_E)
+          ptr++;
+        else if (STRNCMP_UC_C8(ptr + 1, STR_Q STR_BACKSLASH STR_E, 3) == 0)
+          ptr += 3;
+        else
+          break;
+        }
+      else if (!negate_class && c == CHAR_CIRCUMFLEX_ACCENT)
+        negate_class = TRUE;
+      else break;
+      }
+
+    /* Empty classes are allowed in JavaScript compatibility mode. Otherwise,
+    an initial ']' is taken as a data character -- the code below handles
+    that. In JS mode, [] must always fail, so generate OP_FAIL, whereas
+    [^] must match any character, so generate OP_ALLANY. */
+
+    if (c == CHAR_RIGHT_SQUARE_BRACKET &&
+        (cd->external_options & PCRE_JAVASCRIPT_COMPAT) != 0)
+      {
+      *code++ = negate_class? OP_ALLANY : OP_FAIL;
+      if (firstchar == REQ_UNSET) firstchar = REQ_NONE;
+      zerofirstchar = firstchar;
+      break;
+      }
+
+    /* If a class contains a negative special such as \S, we need to flip the
+    negation flag at the end, so that support for characters > 255 works
+    correctly (they are all included in the class). */
+
+    should_flip_negation = FALSE;
+
+    /* For optimization purposes, we track some properties of the class.
+    class_has_8bitchar will be non-zero, if the class contains at least one
+    < 256 character. class_single_char will be 1 if the class contains only
+    a single character. */
+
+    class_has_8bitchar = 0;
+    class_single_char = 0;
+
+    /* Initialize the 32-char bit map to all zeros. We build the map in a
+    temporary bit of memory, in case the class contains only 1 character (less
+    than 256), because in that case the compiled code doesn't use the bit map.
+    */
+
+    memset(classbits, 0, 32 * sizeof(pcre_uint8));
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+    xclass = FALSE;                           /* No chars >= 256 */
+    class_uchardata = code + LINK_SIZE + 2;   /* For UTF-8 items */
+    class_uchardata_base = class_uchardata;   /* For resetting in pass 1 */
+#endif
+
+    /* Process characters until ] is reached. By writing this as a "do" it
+    means that an initial ] is taken as a data character. At the start of the
+    loop, c contains the first byte of the character. */
+
+    if (c != 0) do
+      {
+      const pcre_uchar *oldptr;
+
+#ifdef SUPPORT_UTF
+      if (utf && HAS_EXTRALEN(c))
+        {                           /* Braces are required because the */
+        GETCHARLEN(c, ptr, ptr);    /* macro generates multiple statements */
+        }
+#endif
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+      /* In the pre-compile phase, accumulate the length of any extra
+      data and reset the pointer. This is so that very large classes that
+      contain a zillion > 255 characters no longer overwrite the work space
+      (which is on the stack). */
+
+      if (lengthptr != NULL)
+        {
+        *lengthptr += class_uchardata - class_uchardata_base;
+        class_uchardata = class_uchardata_base;
+        }
+#endif
+
+      /* Inside \Q...\E everything is literal except \E */
+
+      if (inescq)
+        {
+        if (c == CHAR_BACKSLASH && ptr[1] == CHAR_E)  /* If we are at \E */
+          {
+          inescq = FALSE;                   /* Reset literal state */
+          ptr++;                            /* Skip the 'E' */
+          continue;                         /* Carry on with next */
+          }
+        goto CHECK_RANGE;                   /* Could be range if \E follows */
+        }
+
+      /* Handle POSIX class names. Perl allows a negation extension of the
+      form [:^name:]. A square bracket that doesn't match the syntax is
+      treated as a literal. We also recognize the POSIX constructions
+      [.ch.] and [=ch=] ("collating elements") and fault them, as Perl
+      5.6 and 5.8 do. */
+
+      if (c == CHAR_LEFT_SQUARE_BRACKET &&
+          (ptr[1] == CHAR_COLON || ptr[1] == CHAR_DOT ||
+           ptr[1] == CHAR_EQUALS_SIGN) && check_posix_syntax(ptr, &tempptr))
+        {
+        BOOL local_negate = FALSE;
+        int posix_class, taboffset, tabopt;
+        register const pcre_uint8 *cbits = cd->cbits;
+        pcre_uint8 pbits[32];
+
+        if (ptr[1] != CHAR_COLON)
+          {
+          *errorcodeptr = ERR31;
+          goto FAILED;
+          }
+
+        ptr += 2;
+        if (*ptr == CHAR_CIRCUMFLEX_ACCENT)
+          {
+          local_negate = TRUE;
+          should_flip_negation = TRUE;  /* Note negative special */
+          ptr++;
+          }
+
+        posix_class = check_posix_name(ptr, (int)(tempptr - ptr));
+        if (posix_class < 0)
+          {
+          *errorcodeptr = ERR30;
+          goto FAILED;
+          }
+
+        /* If matching is caseless, upper and lower are converted to
+        alpha. This relies on the fact that the class table starts with
+        alpha, lower, upper as the first 3 entries. */
+
+        if ((options & PCRE_CASELESS) != 0 && posix_class <= 2)
+          posix_class = 0;
+
+        /* When PCRE_UCP is set, some of the POSIX classes are converted to
+        different escape sequences that use Unicode properties. */
+
+#ifdef SUPPORT_UCP
+        if ((options & PCRE_UCP) != 0)
+          {
+          int pc = posix_class + ((local_negate)? POSIX_SUBSIZE/2 : 0);
+          if (posix_substitutes[pc] != NULL)
+            {
+            nestptr = tempptr + 1;
+            ptr = posix_substitutes[pc] - 1;
+            continue;
+            }
+          }
+#endif
+        /* In the non-UCP case, we build the bit map for the POSIX class in a
+        chunk of local store because we may be adding and subtracting from it,
+        and we don't want to subtract bits that may be in the main map already.
+        At the end we or the result into the bit map that is being built. */
+
+        posix_class *= 3;
+
+        /* Copy in the first table (always present) */
+
+        memcpy(pbits, cbits + posix_class_maps[posix_class],
+          32 * sizeof(pcre_uint8));
+
+        /* If there is a second table, add or remove it as required. */
+
+        taboffset = posix_class_maps[posix_class + 1];
+        tabopt = posix_class_maps[posix_class + 2];
+
+        if (taboffset >= 0)
+          {
+          if (tabopt >= 0)
+            for (c = 0; c < 32; c++) pbits[c] |= cbits[c + taboffset];
+          else
+            for (c = 0; c < 32; c++) pbits[c] &= ~cbits[c + taboffset];
+          }
+
+        /* Not see if we need to remove any special characters. An option
+        value of 1 removes vertical space and 2 removes underscore. */
+
+        if (tabopt < 0) tabopt = -tabopt;
+        if (tabopt == 1) pbits[1] &= ~0x3c;
+          else if (tabopt == 2) pbits[11] &= 0x7f;
+
+        /* Add the POSIX table or its complement into the main table that is
+        being built and we are done. */
+
+        if (local_negate)
+          for (c = 0; c < 32; c++) classbits[c] |= ~pbits[c];
+        else
+          for (c = 0; c < 32; c++) classbits[c] |= pbits[c];
+
+        ptr = tempptr + 1;
+        /* Every class contains at least one < 256 characters. */
+        class_has_8bitchar = 1;
+        /* Every class contains at least two characters. */
+        class_single_char = 2;
+        continue;    /* End of POSIX syntax handling */
+        }
+
+      /* Backslash may introduce a single character, or it may introduce one
+      of the specials, which just set a flag. The sequence \b is a special
+      case. Inside a class (and only there) it is treated as backspace. We
+      assume that other escapes have more than one character in them, so
+      speculatively set both class_has_8bitchar and class_single_char bigger
+      than one. Unrecognized escapes fall through and are either treated
+      as literal characters (by default), or are faulted if
+      PCRE_EXTRA is set. */
+
+      if (c == CHAR_BACKSLASH)
+        {
+        c = check_escape(&ptr, errorcodeptr, cd->bracount, options, TRUE);
+        if (*errorcodeptr != 0) goto FAILED;
+
+        if (-c == ESC_b) c = CHAR_BS;    /* \b is backspace in a class */
+        else if (-c == ESC_N)            /* \N is not supported in a class */
+          {
+          *errorcodeptr = ERR71;
+          goto FAILED;
+          }
+        else if (-c == ESC_Q)            /* Handle start of quoted string */
+          {
+          if (ptr[1] == CHAR_BACKSLASH && ptr[2] == CHAR_E)
+            {
+            ptr += 2; /* avoid empty string */
+            }
+          else inescq = TRUE;
+          continue;
+          }
+        else if (-c == ESC_E) continue;  /* Ignore orphan \E */
+
+        if (c < 0)
+          {
+          register const pcre_uint8 *cbits = cd->cbits;
+          /* Every class contains at least two < 256 characters. */
+          class_has_8bitchar++;
+          /* Every class contains at least two characters. */
+          class_single_char += 2;
+
+          switch (-c)
+            {
+#ifdef SUPPORT_UCP
+            case ESC_du:     /* These are the values given for \d etc */
+            case ESC_DU:     /* when PCRE_UCP is set. We replace the */
+            case ESC_wu:     /* escape sequence with an appropriate \p */
+            case ESC_WU:     /* or \P to test Unicode properties instead */
+            case ESC_su:     /* of the default ASCII testing. */
+            case ESC_SU:
+            nestptr = ptr;
+            ptr = substitutes[-c - ESC_DU] - 1;  /* Just before substitute */
+            class_has_8bitchar--;                /* Undo! */
+            continue;
+#endif
+            case ESC_d:
+            for (c = 0; c < 32; c++) classbits[c] |= cbits[c+cbit_digit];
+            continue;
+
+            case ESC_D:
+            should_flip_negation = TRUE;
+            for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_digit];
+            continue;
+
+            case ESC_w:
+            for (c = 0; c < 32; c++) classbits[c] |= cbits[c+cbit_word];
+            continue;
+
+            case ESC_W:
+            should_flip_negation = TRUE;
+            for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_word];
+            continue;
+
+            /* Perl 5.004 onwards omits VT from \s, but we must preserve it
+            if it was previously set by something earlier in the character
+            class. */
+
+            case ESC_s:
+            classbits[0] |= cbits[cbit_space];
+            classbits[1] |= cbits[cbit_space+1] & ~0x08;
+            for (c = 2; c < 32; c++) classbits[c] |= cbits[c+cbit_space];
+            continue;
+
+            case ESC_S:
+            should_flip_negation = TRUE;
+            for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_space];
+            classbits[1] |= 0x08;    /* Perl 5.004 onwards omits VT from \s */
+            continue;
+
+            case ESC_h:
+            SETBIT(classbits, 0x09); /* VT */
+            SETBIT(classbits, 0x20); /* SPACE */
+            SETBIT(classbits, 0xa0); /* NSBP */
+#ifndef COMPILE_PCRE8
+            xclass = TRUE;
+            *class_uchardata++ = XCL_SINGLE;
+            *class_uchardata++ = 0x1680;
+            *class_uchardata++ = XCL_SINGLE;
+            *class_uchardata++ = 0x180e;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x2000;
+            *class_uchardata++ = 0x200a;
+            *class_uchardata++ = XCL_SINGLE;
+            *class_uchardata++ = 0x202f;
+            *class_uchardata++ = XCL_SINGLE;
+            *class_uchardata++ = 0x205f;
+            *class_uchardata++ = XCL_SINGLE;
+            *class_uchardata++ = 0x3000;
+#elif defined SUPPORT_UTF
+            if (utf)
+              {
+              xclass = TRUE;
+              *class_uchardata++ = XCL_SINGLE;
+              class_uchardata += PRIV(ord2utf)(0x1680, class_uchardata);
+              *class_uchardata++ = XCL_SINGLE;
+              class_uchardata += PRIV(ord2utf)(0x180e, class_uchardata);
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x2000, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x200a, class_uchardata);
+              *class_uchardata++ = XCL_SINGLE;
+              class_uchardata += PRIV(ord2utf)(0x202f, class_uchardata);
+              *class_uchardata++ = XCL_SINGLE;
+              class_uchardata += PRIV(ord2utf)(0x205f, class_uchardata);
+              *class_uchardata++ = XCL_SINGLE;
+              class_uchardata += PRIV(ord2utf)(0x3000, class_uchardata);
+              }
+#endif
+            continue;
+
+            case ESC_H:
+            for (c = 0; c < 32; c++)
+              {
+              int x = 0xff;
+              switch (c)
+                {
+                case 0x09/8: x ^= 1 << (0x09%8); break;
+                case 0x20/8: x ^= 1 << (0x20%8); break;
+                case 0xa0/8: x ^= 1 << (0xa0%8); break;
+                default: break;
+                }
+              classbits[c] |= x;
+              }
+#ifndef COMPILE_PCRE8
+            xclass = TRUE;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x0100;
+            *class_uchardata++ = 0x167f;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x1681;
+            *class_uchardata++ = 0x180d;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x180f;
+            *class_uchardata++ = 0x1fff;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x200b;
+            *class_uchardata++ = 0x202e;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x2030;
+            *class_uchardata++ = 0x205e;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x2060;
+            *class_uchardata++ = 0x2fff;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x3001;
+#ifdef SUPPORT_UTF
+            if (utf)
+              class_uchardata += PRIV(ord2utf)(0x10ffff, class_uchardata);
+            else
+#endif
+              *class_uchardata++ = 0xffff;
+#elif defined SUPPORT_UTF
+            if (utf)
+              {
+              xclass = TRUE;
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x0100, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x167f, class_uchardata);
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x1681, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x180d, class_uchardata);
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x180f, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x1fff, class_uchardata);
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x200b, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x202e, class_uchardata);
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x2030, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x205e, class_uchardata);
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x2060, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x2fff, class_uchardata);
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x3001, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x10ffff, class_uchardata);
+              }
+#endif
+            continue;
+
+            case ESC_v:
+            SETBIT(classbits, 0x0a); /* LF */
+            SETBIT(classbits, 0x0b); /* VT */
+            SETBIT(classbits, 0x0c); /* FF */
+            SETBIT(classbits, 0x0d); /* CR */
+            SETBIT(classbits, 0x85); /* NEL */
+#ifndef COMPILE_PCRE8
+            xclass = TRUE;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x2028;
+            *class_uchardata++ = 0x2029;
+#elif defined SUPPORT_UTF
+            if (utf)
+              {
+              xclass = TRUE;
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x2028, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x2029, class_uchardata);
+              }
+#endif
+            continue;
+
+            case ESC_V:
+            for (c = 0; c < 32; c++)
+              {
+              int x = 0xff;
+              switch (c)
+                {
+                case 0x0a/8: x ^= 1 << (0x0a%8);
+                             x ^= 1 << (0x0b%8);
+                             x ^= 1 << (0x0c%8);
+                             x ^= 1 << (0x0d%8);
+                             break;
+                case 0x85/8: x ^= 1 << (0x85%8); break;
+                default: break;
+                }
+              classbits[c] |= x;
+              }
+
+#ifndef COMPILE_PCRE8
+            xclass = TRUE;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x0100;
+            *class_uchardata++ = 0x2027;
+            *class_uchardata++ = XCL_RANGE;
+            *class_uchardata++ = 0x202a;
+#ifdef SUPPORT_UTF
+            if (utf)
+              class_uchardata += PRIV(ord2utf)(0x10ffff, class_uchardata);
+            else
+#endif
+              *class_uchardata++ = 0xffff;
+#elif defined SUPPORT_UTF
+            if (utf)
+              {
+              xclass = TRUE;
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x0100, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x2027, class_uchardata);
+              *class_uchardata++ = XCL_RANGE;
+              class_uchardata += PRIV(ord2utf)(0x202a, class_uchardata);
+              class_uchardata += PRIV(ord2utf)(0x10ffff, class_uchardata);
+              }
+#endif
+            continue;
+
+#ifdef SUPPORT_UCP
+            case ESC_p:
+            case ESC_P:
+              {
+              BOOL negated;
+              int pdata;
+              int ptype = get_ucp(&ptr, &negated, &pdata, errorcodeptr);
+              if (ptype < 0) goto FAILED;
+              xclass = TRUE;
+              *class_uchardata++ = ((-c == ESC_p) != negated)?
+                XCL_PROP : XCL_NOTPROP;
+              *class_uchardata++ = ptype;
+              *class_uchardata++ = pdata;
+              class_has_8bitchar--;                /* Undo! */
+              continue;
+              }
+#endif
+            /* Unrecognized escapes are faulted if PCRE is running in its
+            strict mode. By default, for compatibility with Perl, they are
+            treated as literals. */
+
+            default:
+            if ((options & PCRE_EXTRA) != 0)
+              {
+              *errorcodeptr = ERR7;
+              goto FAILED;
+              }
+            class_has_8bitchar--;    /* Undo the speculative increase. */
+            class_single_char -= 2;  /* Undo the speculative increase. */
+            c = *ptr;                /* Get the final character and fall through */
+            break;
+            }
+          }
+
+        /* Fall through if we have a single character (c >= 0). This may be
+        greater than 256. */
+
+        }   /* End of backslash handling */
+
+      /* A single character may be followed by '-' to form a range. However,
+      Perl does not permit ']' to be the end of the range. A '-' character
+      at the end is treated as a literal. Perl ignores orphaned \E sequences
+      entirely. The code for handling \Q and \E is messy. */
+
+      CHECK_RANGE:
+      while (ptr[1] == CHAR_BACKSLASH && ptr[2] == CHAR_E)
+        {
+        inescq = FALSE;
+        ptr += 2;
+        }
+
+      oldptr = ptr;
+
+      /* Remember \r or \n */
+
+      if (c == CHAR_CR || c == CHAR_NL) cd->external_flags |= PCRE_HASCRORLF;
+
+      /* Check for range */
+
+      if (!inescq && ptr[1] == CHAR_MINUS)
+        {
+        int d;
+        ptr += 2;
+        while (*ptr == CHAR_BACKSLASH && ptr[1] == CHAR_E) ptr += 2;
+
+        /* If we hit \Q (not followed by \E) at this point, go into escaped
+        mode. */
+
+        while (*ptr == CHAR_BACKSLASH && ptr[1] == CHAR_Q)
+          {
+          ptr += 2;
+          if (*ptr == CHAR_BACKSLASH && ptr[1] == CHAR_E)
+            { ptr += 2; continue; }
+          inescq = TRUE;
+          break;
+          }
+
+        if (*ptr == 0 || (!inescq && *ptr == CHAR_RIGHT_SQUARE_BRACKET))
+          {
+          ptr = oldptr;
+          goto LONE_SINGLE_CHARACTER;
+          }
+
+#ifdef SUPPORT_UTF
+        if (utf)
+          {                           /* Braces are required because the */
+          GETCHARLEN(d, ptr, ptr);    /* macro generates multiple statements */
+          }
+        else
+#endif
+        d = *ptr;  /* Not UTF-8 mode */
+
+        /* The second part of a range can be a single-character escape, but
+        not any of the other escapes. Perl 5.6 treats a hyphen as a literal
+        in such circumstances. */
+
+        if (!inescq && d == CHAR_BACKSLASH)
+          {
+          d = check_escape(&ptr, errorcodeptr, cd->bracount, options, TRUE);
+          if (*errorcodeptr != 0) goto FAILED;
+
+          /* \b is backspace; any other special means the '-' was literal */
+
+          if (d < 0)
+            {
+            if (d == -ESC_b) d = CHAR_BS; else
+              {
+              ptr = oldptr;
+              goto LONE_SINGLE_CHARACTER;  /* A few lines below */
+              }
+            }
+          }
+
+        /* Check that the two values are in the correct order. Optimize
+        one-character ranges */
+
+        if (d < c)
+          {
+          *errorcodeptr = ERR8;
+          goto FAILED;
+          }
+
+        if (d == c) goto LONE_SINGLE_CHARACTER;  /* A few lines below */
+
+        /* Remember \r or \n */
+
+        if (d == CHAR_CR || d == CHAR_NL) cd->external_flags |= PCRE_HASCRORLF;
+
+        /* Since we found a character range, single character optimizations
+        cannot be done anymore. */
+        class_single_char = 2;
+
+        /* In UTF-8 mode, if the upper limit is > 255, or > 127 for caseless
+        matching, we have to use an XCLASS with extra data items. Caseless
+        matching for characters > 127 is available only if UCP support is
+        available. */
+
+#if defined SUPPORT_UTF && !(defined COMPILE_PCRE8)
+        if ((d > 255) || (utf && ((options & PCRE_CASELESS) != 0 && d > 127)))
+#elif defined  SUPPORT_UTF
+        if (utf && (d > 255 || ((options & PCRE_CASELESS) != 0 && d > 127)))
+#elif !(defined COMPILE_PCRE8)
+        if (d > 255)
+#endif
+#if defined SUPPORT_UTF || !(defined COMPILE_PCRE8)
+          {
+          xclass = TRUE;
+
+          /* With UCP support, we can find the other case equivalents of
+          the relevant characters. There may be several ranges. Optimize how
+          they fit with the basic range. */
+
+#ifdef SUPPORT_UCP
+#ifndef COMPILE_PCRE8
+          if (utf && (options & PCRE_CASELESS) != 0)
+#else
+          if ((options & PCRE_CASELESS) != 0)
+#endif
+            {
+            unsigned int occ, ocd;
+            unsigned int cc = c;
+            unsigned int origd = d;
+            while (get_othercase_range(&cc, origd, &occ, &ocd))
+              {
+              if (occ >= (unsigned int)c &&
+                  ocd <= (unsigned int)d)
+                continue;                          /* Skip embedded ranges */
+
+              if (occ < (unsigned int)c  &&
+                  ocd >= (unsigned int)c - 1)      /* Extend the basic range */
+                {                                  /* if there is overlap,   */
+                c = occ;                           /* noting that if occ < c */
+                continue;                          /* we can't have ocd > d  */
+                }                                  /* because a subrange is  */
+              if (ocd > (unsigned int)d &&
+                  occ <= (unsigned int)d + 1)      /* always shorter than    */
+                {                                  /* the basic range.       */
+                d = ocd;
+                continue;
+                }
+
+              if (occ == ocd)
+                {
+                *class_uchardata++ = XCL_SINGLE;
+                }
+              else
+                {
+                *class_uchardata++ = XCL_RANGE;
+                class_uchardata += PRIV(ord2utf)(occ, class_uchardata);
+                }
+              class_uchardata += PRIV(ord2utf)(ocd, class_uchardata);
+              }
+            }
+#endif  /* SUPPORT_UCP */
+
+          /* Now record the original range, possibly modified for UCP caseless
+          overlapping ranges. */
+
+          *class_uchardata++ = XCL_RANGE;
+#ifdef SUPPORT_UTF
+#ifndef COMPILE_PCRE8
+          if (utf)
+            {
+            class_uchardata += PRIV(ord2utf)(c, class_uchardata);
+            class_uchardata += PRIV(ord2utf)(d, class_uchardata);
+            }
+          else
+            {
+            *class_uchardata++ = c;
+            *class_uchardata++ = d;
+            }
+#else
+          class_uchardata += PRIV(ord2utf)(c, class_uchardata);
+          class_uchardata += PRIV(ord2utf)(d, class_uchardata);
+#endif
+#else /* SUPPORT_UTF */
+          *class_uchardata++ = c;
+          *class_uchardata++ = d;
+#endif /* SUPPORT_UTF */
+
+          /* With UCP support, we are done. Without UCP support, there is no
+          caseless matching for UTF characters > 127; we can use the bit map
+          for the smaller ones. As for 16 bit characters without UTF, we
+          can still use  */
+
+#ifdef SUPPORT_UCP
+#ifndef COMPILE_PCRE8
+          if (utf)
+#endif
+            continue;    /* With next character in the class */
+#endif  /* SUPPORT_UCP */
+
+#if defined SUPPORT_UTF && !defined(SUPPORT_UCP) && !(defined COMPILE_PCRE8)
+          if (utf)
+            {
+            if ((options & PCRE_CASELESS) == 0 || c > 127) continue;
+            /* Adjust upper limit and fall through to set up the map */
+            d = 127;
+            }
+          else
+            {
+            if (c > 255) continue;
+            /* Adjust upper limit and fall through to set up the map */
+            d = 255;
+            }
+#elif defined SUPPORT_UTF && !defined(SUPPORT_UCP)
+          if ((options & PCRE_CASELESS) == 0 || c > 127) continue;
+          /* Adjust upper limit and fall through to set up the map */
+          d = 127;
+#else
+          if (c > 255) continue;
+          /* Adjust upper limit and fall through to set up the map */
+          d = 255;
+#endif  /* SUPPORT_UTF && !SUPPORT_UCP && !COMPILE_PCRE8 */
+          }
+#endif  /* SUPPORT_UTF || !COMPILE_PCRE8 */
+
+        /* We use the bit map for 8 bit mode, or when the characters fall
+        partially or entirely to [0-255] ([0-127] for UCP) ranges. */
+
+        class_has_8bitchar = 1;
+
+        /* We can save a bit of time by skipping this in the pre-compile. */
+
+        if (lengthptr == NULL) for (; c <= d; c++)
+          {
+          classbits[c/8] |= (1 << (c&7));
+          if ((options & PCRE_CASELESS) != 0)
+            {
+            int uc = cd->fcc[c]; /* flip case */
+            classbits[uc/8] |= (1 << (uc&7));
+            }
+          }
+
+        continue;   /* Go get the next char in the class */
+        }
+
+      /* Handle a lone single character - we can get here for a normal
+      non-escape char, or after \ that introduces a single character or for an
+      apparent range that isn't. */
+
+      LONE_SINGLE_CHARACTER:
+
+      /* Only the value of 1 matters for class_single_char. */
+
+      if (class_single_char < 2) class_single_char++;
+
+      /* If class_charcount is 1, we saw precisely one character. As long as
+      there was no use of \p or \P, in other words, no use of any XCLASS
+      features, we can optimize.
+
+      The optimization throws away the bit map. We turn the item into a
+      1-character OP_CHAR[I] if it's positive, or OP_NOT[I] if it's negative.
+      In the positive case, it can cause firstchar to be set. Otherwise, there
+      can be no first char if this item is first, whatever repeat count may
+      follow. In the case of reqchar, save the previous value for reinstating. */
+
+      if (class_single_char == 1 && ptr[1] == CHAR_RIGHT_SQUARE_BRACKET)
+        {
+        ptr++;
+        zeroreqchar = reqchar;
+
+        if (negate_class)
+          {
+          if (firstchar == REQ_UNSET) firstchar = REQ_NONE;
+          zerofirstchar = firstchar;
+          *code++ = ((options & PCRE_CASELESS) != 0)? OP_NOTI: OP_NOT;
+#ifdef SUPPORT_UTF
+          if (utf && c > MAX_VALUE_FOR_SINGLE_CHAR)
+            code += PRIV(ord2utf)(c, code);
+          else
+#endif
+            *code++ = c;
+          goto NOT_CHAR;
+          }
+
+        /* For a single, positive character, get the value into mcbuffer, and
+        then we can handle this with the normal one-character code. */
+
+#ifdef SUPPORT_UTF
+        if (utf && c > MAX_VALUE_FOR_SINGLE_CHAR)
+          mclength = PRIV(ord2utf)(c, mcbuffer);
+        else
+#endif
+          {
+          mcbuffer[0] = c;
+          mclength = 1;
+          }
+        goto ONE_CHAR;
+        }       /* End of 1-char optimization */
+
+      /* Handle a character that cannot go in the bit map. */
+
+#if defined SUPPORT_UTF && !(defined COMPILE_PCRE8)
+      if ((c > 255) || (utf && ((options & PCRE_CASELESS) != 0 && c > 127)))
+#elif defined SUPPORT_UTF
+      if (utf && (c > 255 || ((options & PCRE_CASELESS) != 0 && c > 127)))
+#elif !(defined COMPILE_PCRE8)
+      if (c > 255)
+#endif
+
+#if defined SUPPORT_UTF || !(defined COMPILE_PCRE8)
+        {
+        xclass = TRUE;
+        *class_uchardata++ = XCL_SINGLE;
+#ifdef SUPPORT_UTF
+#ifndef COMPILE_PCRE8
+        /* In non 8 bit mode, we can get here even if we are not in UTF mode. */
+        if (!utf)
+          *class_uchardata++ = c;
+        else
+#endif
+          class_uchardata += PRIV(ord2utf)(c, class_uchardata);
+#else /* SUPPORT_UTF */
+        *class_uchardata++ = c;
+#endif /* SUPPORT_UTF */
+
+#ifdef SUPPORT_UCP
+#ifdef COMPILE_PCRE8
+        if ((options & PCRE_CASELESS) != 0)
+#else
+        /* In non 8 bit mode, we can get here even if we are not in UTF mode. */
+        if (utf && (options & PCRE_CASELESS) != 0)
+#endif
+          {
+          unsigned int othercase;
+          if ((int)(othercase = UCD_OTHERCASE(c)) != c)
+            {
+            *class_uchardata++ = XCL_SINGLE;
+            class_uchardata += PRIV(ord2utf)(othercase, class_uchardata);
+            }
+          }
+#endif  /* SUPPORT_UCP */
+
+        }
+      else
+#endif  /* SUPPORT_UTF || COMPILE_PCRE16 */
+
+      /* Handle a single-byte character */
+        {
+        class_has_8bitchar = 1;
+        classbits[c/8] |= (1 << (c&7));
+        if ((options & PCRE_CASELESS) != 0)
+          {
+          c = cd->fcc[c]; /* flip case */
+          classbits[c/8] |= (1 << (c&7));
+          }
+        }
+      }
+
+    /* Loop until ']' reached. This "while" is the end of the "do" far above.
+    If we are at the end of an internal nested string, revert to the outer
+    string. */
+
+    while (((c = *(++ptr)) != 0 ||
+           (nestptr != NULL &&
+             (ptr = nestptr, nestptr = NULL, c = *(++ptr)) != 0)) &&
+           (c != CHAR_RIGHT_SQUARE_BRACKET || inescq));
+
+    /* Check for missing terminating ']' */
+
+    if (c == 0)
+      {
+      *errorcodeptr = ERR6;
+      goto FAILED;
+      }
+
+    /* If this is the first thing in the branch, there can be no first char
+    setting, whatever the repeat count. Any reqchar setting must remain
+    unchanged after any kind of repeat. */
+
+    if (firstchar == REQ_UNSET) firstchar = REQ_NONE;
+    zerofirstchar = firstchar;
+    zeroreqchar = reqchar;
+
+    /* If there are characters with values > 255, we have to compile an
+    extended class, with its own opcode, unless there was a negated special
+    such as \S in the class, and PCRE_UCP is not set, because in that case all
+    characters > 255 are in the class, so any that were explicitly given as
+    well can be ignored. If (when there are explicit characters > 255 that must
+    be listed) there are no characters < 256, we can omit the bitmap in the
+    actual compiled code. */
+
+#ifdef SUPPORT_UTF
+    if (xclass && (!should_flip_negation || (options & PCRE_UCP) != 0))
+#elif !defined COMPILE_PCRE8
+    if (xclass && !should_flip_negation)
+#endif
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+      {
+      *class_uchardata++ = XCL_END;    /* Marks the end of extra data */
+      *code++ = OP_XCLASS;
+      code += LINK_SIZE;
+      *code = negate_class? XCL_NOT:0;
+
+      /* If the map is required, move up the extra data to make room for it;
+      otherwise just move the code pointer to the end of the extra data. */
+
+      if (class_has_8bitchar > 0)
+        {
+        *code++ |= XCL_MAP;
+        memmove(code + (32 / sizeof(pcre_uchar)), code,
+          IN_UCHARS(class_uchardata - code));
+        memcpy(code, classbits, 32);
+        code = class_uchardata + (32 / sizeof(pcre_uchar));
+        }
+      else code = class_uchardata;
+
+      /* Now fill in the complete length of the item */
+
+      PUT(previous, 1, (int)(code - previous));
+      break;   /* End of class handling */
+      }
+#endif
+
+    /* If there are no characters > 255, or they are all to be included or
+    excluded, set the opcode to OP_CLASS or OP_NCLASS, depending on whether the
+    whole class was negated and whether there were negative specials such as \S
+    (non-UCP) in the class. Then copy the 32-byte map into the code vector,
+    negating it if necessary. */
+
+    *code++ = (negate_class == should_flip_negation) ? OP_CLASS : OP_NCLASS;
+    if (lengthptr == NULL)    /* Save time in the pre-compile phase */
+      {
+      if (negate_class)
+        for (c = 0; c < 32; c++) classbits[c] = ~classbits[c];
+      memcpy(code, classbits, 32);
+      }
+    code += 32 / sizeof(pcre_uchar);
+    NOT_CHAR:
+    break;
+
+
+    /* ===================================================================*/
+    /* Various kinds of repeat; '{' is not necessarily a quantifier, but this
+    has been tested above. */
+
+    case CHAR_LEFT_CURLY_BRACKET:
+    if (!is_quantifier) goto NORMAL_CHAR;
+    ptr = read_repeat_counts(ptr+1, &repeat_min, &repeat_max, errorcodeptr);
+    if (*errorcodeptr != 0) goto FAILED;
+    goto REPEAT;
+
+    case CHAR_ASTERISK:
+    repeat_min = 0;
+    repeat_max = -1;
+    goto REPEAT;
+
+    case CHAR_PLUS:
+    repeat_min = 1;
+    repeat_max = -1;
+    goto REPEAT;
+
+    case CHAR_QUESTION_MARK:
+    repeat_min = 0;
+    repeat_max = 1;
+
+    REPEAT:
+    if (previous == NULL)
+      {
+      *errorcodeptr = ERR9;
+      goto FAILED;
+      }
+
+    if (repeat_min == 0)
+      {
+      firstchar = zerofirstchar;    /* Adjust for zero repeat */
+      reqchar = zeroreqchar;        /* Ditto */
+      }
+
+    /* Remember whether this is a variable length repeat */
+
+    reqvary = (repeat_min == repeat_max)? 0 : REQ_VARY;
+
+    op_type = 0;                    /* Default single-char op codes */
+    possessive_quantifier = FALSE;  /* Default not possessive quantifier */
+
+    /* Save start of previous item, in case we have to move it up in order to
+    insert something before it. */
+
+    tempcode = previous;
+
+    /* If the next character is '+', we have a possessive quantifier. This
+    implies greediness, whatever the setting of the PCRE_UNGREEDY option.
+    If the next character is '?' this is a minimizing repeat, by default,
+    but if PCRE_UNGREEDY is set, it works the other way round. We change the
+    repeat type to the non-default. */
+
+    if (ptr[1] == CHAR_PLUS)
+      {
+      repeat_type = 0;                  /* Force greedy */
+      possessive_quantifier = TRUE;
+      ptr++;
+      }
+    else if (ptr[1] == CHAR_QUESTION_MARK)
+      {
+      repeat_type = greedy_non_default;
+      ptr++;
+      }
+    else repeat_type = greedy_default;
+
+    /* If previous was a recursion call, wrap it in atomic brackets so that
+    previous becomes the atomic group. All recursions were so wrapped in the
+    past, but it no longer happens for non-repeated recursions. In fact, the
+    repeated ones could be re-implemented independently so as not to need this,
+    but for the moment we rely on the code for repeating groups. */
+
+    if (*previous == OP_RECURSE)
+      {
+      memmove(previous + 1 + LINK_SIZE, previous, IN_UCHARS(1 + LINK_SIZE));
+      *previous = OP_ONCE;
+      PUT(previous, 1, 2 + 2*LINK_SIZE);
+      previous[2 + 2*LINK_SIZE] = OP_KET;
+      PUT(previous, 3 + 2*LINK_SIZE, 2 + 2*LINK_SIZE);
+      code += 2 + 2 * LINK_SIZE;
+      length_prevgroup = 3 + 3*LINK_SIZE;
+
+      /* When actually compiling, we need to check whether this was a forward
+      reference, and if so, adjust the offset. */
+
+      if (lengthptr == NULL && cd->hwm >= cd->start_workspace + LINK_SIZE)
+        {
+        int offset = GET(cd->hwm, -LINK_SIZE);
+        if (offset == previous + 1 - cd->start_code)
+          PUT(cd->hwm, -LINK_SIZE, offset + 1 + LINK_SIZE);
+        }
+      }
+
+    /* Now handle repetition for the different types of item. */
+
+    /* If previous was a character or negated character match, abolish the item
+    and generate a repeat item instead. If a char item has a minimum of more
+    than one, ensure that it is set in reqchar - it might not be if a sequence
+    such as x{3} is the first thing in a branch because the x will have gone
+    into firstchar instead.  */
+
+    if (*previous == OP_CHAR || *previous == OP_CHARI
+        || *previous == OP_NOT || *previous == OP_NOTI)
+      {
+      switch (*previous)
+        {
+        default: /* Make compiler happy. */
+        case OP_CHAR:  op_type = OP_STAR - OP_STAR; break;
+        case OP_CHARI: op_type = OP_STARI - OP_STAR; break;
+        case OP_NOT:   op_type = OP_NOTSTAR - OP_STAR; break;
+        case OP_NOTI:  op_type = OP_NOTSTARI - OP_STAR; break;
+        }
+
+      /* Deal with UTF characters that take up more than one character. It's
+      easier to write this out separately than try to macrify it. Use c to
+      hold the length of the character in bytes, plus UTF_LENGTH to flag that
+      it's a length rather than a small character. */
+
+#ifdef SUPPORT_UTF
+      if (utf && NOT_FIRSTCHAR(code[-1]))
+        {
+        pcre_uchar *lastchar = code - 1;
+        BACKCHAR(lastchar);
+        c = (int)(code - lastchar);     /* Length of UTF-8 character */
+        memcpy(utf_chars, lastchar, IN_UCHARS(c)); /* Save the char */
+        c |= UTF_LENGTH;                /* Flag c as a length */
+        }
+      else
+#endif /* SUPPORT_UTF */
+
+      /* Handle the case of a single charater - either with no UTF support, or
+      with UTF disabled, or for a single character UTF character. */
+        {
+        c = code[-1];
+        if (*previous <= OP_CHARI && repeat_min > 1)
+          reqchar = c | req_caseopt | cd->req_varyopt;
+        }
+
+      /* If the repetition is unlimited, it pays to see if the next thing on
+      the line is something that cannot possibly match this character. If so,
+      automatically possessifying this item gains some performance in the case
+      where the match fails. */
+
+      if (!possessive_quantifier &&
+          repeat_max < 0 &&
+          check_auto_possessive(previous, utf, ptr + 1, options, cd))
+        {
+        repeat_type = 0;    /* Force greedy */
+        possessive_quantifier = TRUE;
+        }
+
+      goto OUTPUT_SINGLE_REPEAT;   /* Code shared with single character types */
+      }
+
+    /* If previous was a character type match (\d or similar), abolish it and
+    create a suitable repeat item. The code is shared with single-character
+    repeats by setting op_type to add a suitable offset into repeat_type. Note
+    the the Unicode property types will be present only when SUPPORT_UCP is
+    defined, but we don't wrap the little bits of code here because it just
+    makes it horribly messy. */
+
+    else if (*previous < OP_EODN)
+      {
+      pcre_uchar *oldcode;
+      int prop_type, prop_value;
+      op_type = OP_TYPESTAR - OP_STAR;  /* Use type opcodes */
+      c = *previous;
+
+      if (!possessive_quantifier &&
+          repeat_max < 0 &&
+          check_auto_possessive(previous, utf, ptr + 1, options, cd))
+        {
+        repeat_type = 0;    /* Force greedy */
+        possessive_quantifier = TRUE;
+        }
+
+      OUTPUT_SINGLE_REPEAT:
+      if (*previous == OP_PROP || *previous == OP_NOTPROP)
+        {
+        prop_type = previous[1];
+        prop_value = previous[2];
+        }
+      else prop_type = prop_value = -1;
+
+      oldcode = code;
+      code = previous;                  /* Usually overwrite previous item */
+
+      /* If the maximum is zero then the minimum must also be zero; Perl allows
+      this case, so we do too - by simply omitting the item altogether. */
+
+      if (repeat_max == 0) goto END_REPEAT;
+
+      /*--------------------------------------------------------------------*/
+      /* This code is obsolete from release 8.00; the restriction was finally
+      removed: */
+
+      /* All real repeats make it impossible to handle partial matching (maybe
+      one day we will be able to remove this restriction). */
+
+      /* if (repeat_max != 1) cd->external_flags |= PCRE_NOPARTIAL; */
+      /*--------------------------------------------------------------------*/
+
+      /* Combine the op_type with the repeat_type */
+
+      repeat_type += op_type;
+
+      /* A minimum of zero is handled either as the special case * or ?, or as
+      an UPTO, with the maximum given. */
+
+      if (repeat_min == 0)
+        {
+        if (repeat_max == -1) *code++ = OP_STAR + repeat_type;
+          else if (repeat_max == 1) *code++ = OP_QUERY + repeat_type;
+        else
+          {
+          *code++ = OP_UPTO + repeat_type;
+          PUT2INC(code, 0, repeat_max);
+          }
+        }
+
+      /* A repeat minimum of 1 is optimized into some special cases. If the
+      maximum is unlimited, we use OP_PLUS. Otherwise, the original item is
+      left in place and, if the maximum is greater than 1, we use OP_UPTO with
+      one less than the maximum. */
+
+      else if (repeat_min == 1)
+        {
+        if (repeat_max == -1)
+          *code++ = OP_PLUS + repeat_type;
+        else
+          {
+          code = oldcode;                 /* leave previous item in place */
+          if (repeat_max == 1) goto END_REPEAT;
+          *code++ = OP_UPTO + repeat_type;
+          PUT2INC(code, 0, repeat_max - 1);
+          }
+        }
+
+      /* The case {n,n} is just an EXACT, while the general case {n,m} is
+      handled as an EXACT followed by an UPTO. */
+
+      else
+        {
+        *code++ = OP_EXACT + op_type;  /* NB EXACT doesn't have repeat_type */
+        PUT2INC(code, 0, repeat_min);
+
+        /* If the maximum is unlimited, insert an OP_STAR. Before doing so,
+        we have to insert the character for the previous code. For a repeated
+        Unicode property match, there are two extra bytes that define the
+        required property. In UTF-8 mode, long characters have their length in
+        c, with the UTF_LENGTH bit as a flag. */
+
+        if (repeat_max < 0)
+          {
+#ifdef SUPPORT_UTF
+          if (utf && (c & UTF_LENGTH) != 0)
+            {
+            memcpy(code, utf_chars, IN_UCHARS(c & 7));
+            code += c & 7;
+            }
+          else
+#endif
+            {
+            *code++ = c;
+            if (prop_type >= 0)
+              {
+              *code++ = prop_type;
+              *code++ = prop_value;
+              }
+            }
+          *code++ = OP_STAR + repeat_type;
+          }
+
+        /* Else insert an UPTO if the max is greater than the min, again
+        preceded by the character, for the previously inserted code. If the
+        UPTO is just for 1 instance, we can use QUERY instead. */
+
+        else if (repeat_max != repeat_min)
+          {
+#ifdef SUPPORT_UTF
+          if (utf && (c & UTF_LENGTH) != 0)
+            {
+            memcpy(code, utf_chars, IN_UCHARS(c & 7));
+            code += c & 7;
+            }
+          else
+#endif
+          *code++ = c;
+          if (prop_type >= 0)
+            {
+            *code++ = prop_type;
+            *code++ = prop_value;
+            }
+          repeat_max -= repeat_min;
+
+          if (repeat_max == 1)
+            {
+            *code++ = OP_QUERY + repeat_type;
+            }
+          else
+            {
+            *code++ = OP_UPTO + repeat_type;
+            PUT2INC(code, 0, repeat_max);
+            }
+          }
+        }
+
+      /* The character or character type itself comes last in all cases. */
+
+#ifdef SUPPORT_UTF
+      if (utf && (c & UTF_LENGTH) != 0)
+        {
+        memcpy(code, utf_chars, IN_UCHARS(c & 7));
+        code += c & 7;
+        }
+      else
+#endif
+      *code++ = c;
+
+      /* For a repeated Unicode property match, there are two extra bytes that
+      define the required property. */
+
+#ifdef SUPPORT_UCP
+      if (prop_type >= 0)
+        {
+        *code++ = prop_type;
+        *code++ = prop_value;
+        }
+#endif
+      }
+
+    /* If previous was a character class or a back reference, we put the repeat
+    stuff after it, but just skip the item if the repeat was {0,0}. */
+
+    else if (*previous == OP_CLASS ||
+             *previous == OP_NCLASS ||
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+             *previous == OP_XCLASS ||
+#endif
+             *previous == OP_REF ||
+             *previous == OP_REFI)
+      {
+      if (repeat_max == 0)
+        {
+        code = previous;
+        goto END_REPEAT;
+        }
+
+      /*--------------------------------------------------------------------*/
+      /* This code is obsolete from release 8.00; the restriction was finally
+      removed: */
+
+      /* All real repeats make it impossible to handle partial matching (maybe
+      one day we will be able to remove this restriction). */
+
+      /* if (repeat_max != 1) cd->external_flags |= PCRE_NOPARTIAL; */
+      /*--------------------------------------------------------------------*/
+
+      if (repeat_min == 0 && repeat_max == -1)
+        *code++ = OP_CRSTAR + repeat_type;
+      else if (repeat_min == 1 && repeat_max == -1)
+        *code++ = OP_CRPLUS + repeat_type;
+      else if (repeat_min == 0 && repeat_max == 1)
+        *code++ = OP_CRQUERY + repeat_type;
+      else
+        {
+        *code++ = OP_CRRANGE + repeat_type;
+        PUT2INC(code, 0, repeat_min);
+        if (repeat_max == -1) repeat_max = 0;  /* 2-byte encoding for max */
+        PUT2INC(code, 0, repeat_max);
+        }
+      }
+
+    /* If previous was a bracket group, we may have to replicate it in certain
+    cases. Note that at this point we can encounter only the "basic" bracket
+    opcodes such as BRA and CBRA, as this is the place where they get converted
+    into the more special varieties such as BRAPOS and SBRA. A test for >=
+    OP_ASSERT and <= OP_COND includes ASSERT, ASSERT_NOT, ASSERTBACK,
+    ASSERTBACK_NOT, ONCE, BRA, CBRA, and COND. Originally, PCRE did not allow
+    repetition of assertions, but now it does, for Perl compatibility. */
+
+    else if (*previous >= OP_ASSERT && *previous <= OP_COND)
+      {
+      register int i;
+      int len = (int)(code - previous);
+      pcre_uchar *bralink = NULL;
+      pcre_uchar *brazeroptr = NULL;
+
+      /* Repeating a DEFINE group is pointless, but Perl allows the syntax, so
+      we just ignore the repeat. */
+
+      if (*previous == OP_COND && previous[LINK_SIZE+1] == OP_DEF)
+        goto END_REPEAT;
+
+      /* There is no sense in actually repeating assertions. The only potential
+      use of repetition is in cases when the assertion is optional. Therefore,
+      if the minimum is greater than zero, just ignore the repeat. If the
+      maximum is not not zero or one, set it to 1. */
+
+      if (*previous < OP_ONCE)    /* Assertion */
+        {
+        if (repeat_min > 0) goto END_REPEAT;
+        if (repeat_max < 0 || repeat_max > 1) repeat_max = 1;
+        }
+
+      /* The case of a zero minimum is special because of the need to stick
+      OP_BRAZERO in front of it, and because the group appears once in the
+      data, whereas in other cases it appears the minimum number of times. For
+      this reason, it is simplest to treat this case separately, as otherwise
+      the code gets far too messy. There are several special subcases when the
+      minimum is zero. */
+
+      if (repeat_min == 0)
+        {
+        /* If the maximum is also zero, we used to just omit the group from the
+        output altogether, like this:
+
+        ** if (repeat_max == 0)
+        **   {
+        **   code = previous;
+        **   goto END_REPEAT;
+        **   }
+
+        However, that fails when a group or a subgroup within it is referenced
+        as a subroutine from elsewhere in the pattern, so now we stick in
+        OP_SKIPZERO in front of it so that it is skipped on execution. As we
+        don't have a list of which groups are referenced, we cannot do this
+        selectively.
+
+        If the maximum is 1 or unlimited, we just have to stick in the BRAZERO
+        and do no more at this point. However, we do need to adjust any
+        OP_RECURSE calls inside the group that refer to the group itself or any
+        internal or forward referenced group, because the offset is from the
+        start of the whole regex. Temporarily terminate the pattern while doing
+        this. */
+
+        if (repeat_max <= 1)    /* Covers 0, 1, and unlimited */
+          {
+          *code = OP_END;
+          adjust_recurse(previous, 1, utf, cd, save_hwm);
+          memmove(previous + 1, previous, IN_UCHARS(len));
+          code++;
+          if (repeat_max == 0)
+            {
+            *previous++ = OP_SKIPZERO;
+            goto END_REPEAT;
+            }
+          brazeroptr = previous;    /* Save for possessive optimizing */
+          *previous++ = OP_BRAZERO + repeat_type;
+          }
+
+        /* If the maximum is greater than 1 and limited, we have to replicate
+        in a nested fashion, sticking OP_BRAZERO before each set of brackets.
+        The first one has to be handled carefully because it's the original
+        copy, which has to be moved up. The remainder can be handled by code
+        that is common with the non-zero minimum case below. We have to
+        adjust the value or repeat_max, since one less copy is required. Once
+        again, we may have to adjust any OP_RECURSE calls inside the group. */
+
+        else
+          {
+          int offset;
+          *code = OP_END;
+          adjust_recurse(previous, 2 + LINK_SIZE, utf, cd, save_hwm);
+          memmove(previous + 2 + LINK_SIZE, previous, IN_UCHARS(len));
+          code += 2 + LINK_SIZE;
+          *previous++ = OP_BRAZERO + repeat_type;
+          *previous++ = OP_BRA;
+
+          /* We chain together the bracket offset fields that have to be
+          filled in later when the ends of the brackets are reached. */
+
+          offset = (bralink == NULL)? 0 : (int)(previous - bralink);
+          bralink = previous;
+          PUTINC(previous, 0, offset);
+          }
+
+        repeat_max--;
+        }
+
+      /* If the minimum is greater than zero, replicate the group as many
+      times as necessary, and adjust the maximum to the number of subsequent
+      copies that we need. If we set a first char from the group, and didn't
+      set a required char, copy the latter from the former. If there are any
+      forward reference subroutine calls in the group, there will be entries on
+      the workspace list; replicate these with an appropriate increment. */
+
+      else
+        {
+        if (repeat_min > 1)
+          {
+          /* In the pre-compile phase, we don't actually do the replication. We
+          just adjust the length as if we had. Do some paranoid checks for
+          potential integer overflow. The INT64_OR_DOUBLE type is a 64-bit
+          integer type when available, otherwise double. */
+
+          if (lengthptr != NULL)
+            {
+            int delta = (repeat_min - 1)*length_prevgroup;
+            if ((INT64_OR_DOUBLE)(repeat_min - 1)*
+                  (INT64_OR_DOUBLE)length_prevgroup >
+                    (INT64_OR_DOUBLE)INT_MAX ||
+                OFLOW_MAX - *lengthptr < delta)
+              {
+              *errorcodeptr = ERR20;
+              goto FAILED;
+              }
+            *lengthptr += delta;
+            }
+
+          /* This is compiling for real. If there is a set first byte for
+          the group, and we have not yet set a "required byte", set it. Make
+          sure there is enough workspace for copying forward references before
+          doing the copy. */
+
+          else
+            {
+            if (groupsetfirstchar && reqchar < 0) reqchar = firstchar;
+
+            for (i = 1; i < repeat_min; i++)
+              {
+              pcre_uchar *hc;
+              pcre_uchar *this_hwm = cd->hwm;
+              memcpy(code, previous, IN_UCHARS(len));
+
+              while (cd->hwm > cd->start_workspace + cd->workspace_size -
+                     WORK_SIZE_SAFETY_MARGIN - (this_hwm - save_hwm))
+                {
+                int save_offset = save_hwm - cd->start_workspace;
+                int this_offset = this_hwm - cd->start_workspace;
+                *errorcodeptr = expand_workspace(cd);
+                if (*errorcodeptr != 0) goto FAILED;
+                save_hwm = (pcre_uchar *)cd->start_workspace + save_offset;
+                this_hwm = (pcre_uchar *)cd->start_workspace + this_offset;
+                }
+
+              for (hc = save_hwm; hc < this_hwm; hc += LINK_SIZE)
+                {
+                PUT(cd->hwm, 0, GET(hc, 0) + len);
+                cd->hwm += LINK_SIZE;
+                }
+              save_hwm = this_hwm;
+              code += len;
+              }
+            }
+          }
+
+        if (repeat_max > 0) repeat_max -= repeat_min;
+        }
+
+      /* This code is common to both the zero and non-zero minimum cases. If
+      the maximum is limited, it replicates the group in a nested fashion,
+      remembering the bracket starts on a stack. In the case of a zero minimum,
+      the first one was set up above. In all cases the repeat_max now specifies
+      the number of additional copies needed. Again, we must remember to
+      replicate entries on the forward reference list. */
+
+      if (repeat_max >= 0)
+        {
+        /* In the pre-compile phase, we don't actually do the replication. We
+        just adjust the length as if we had. For each repetition we must add 1
+        to the length for BRAZERO and for all but the last repetition we must
+        add 2 + 2*LINKSIZE to allow for the nesting that occurs. Do some
+        paranoid checks to avoid integer overflow. The INT64_OR_DOUBLE type is
+        a 64-bit integer type when available, otherwise double. */
+
+        if (lengthptr != NULL && repeat_max > 0)
+          {
+          int delta = repeat_max * (length_prevgroup + 1 + 2 + 2*LINK_SIZE) -
+                      2 - 2*LINK_SIZE;   /* Last one doesn't nest */
+          if ((INT64_OR_DOUBLE)repeat_max *
+                (INT64_OR_DOUBLE)(length_prevgroup + 1 + 2 + 2*LINK_SIZE)
+                  > (INT64_OR_DOUBLE)INT_MAX ||
+              OFLOW_MAX - *lengthptr < delta)
+            {
+            *errorcodeptr = ERR20;
+            goto FAILED;
+            }
+          *lengthptr += delta;
+          }
+
+        /* This is compiling for real */
+
+        else for (i = repeat_max - 1; i >= 0; i--)
+          {
+          pcre_uchar *hc;
+          pcre_uchar *this_hwm = cd->hwm;
+
+          *code++ = OP_BRAZERO + repeat_type;
+
+          /* All but the final copy start a new nesting, maintaining the
+          chain of brackets outstanding. */
+
+          if (i != 0)
+            {
+            int offset;
+            *code++ = OP_BRA;
+            offset = (bralink == NULL)? 0 : (int)(code - bralink);
+            bralink = code;
+            PUTINC(code, 0, offset);
+            }
+
+          memcpy(code, previous, IN_UCHARS(len));
+
+          /* Ensure there is enough workspace for forward references before
+          copying them. */
+
+          while (cd->hwm > cd->start_workspace + cd->workspace_size -
+                 WORK_SIZE_SAFETY_MARGIN - (this_hwm - save_hwm))
+            {
+            int save_offset = save_hwm - cd->start_workspace;
+            int this_offset = this_hwm - cd->start_workspace;
+            *errorcodeptr = expand_workspace(cd);
+            if (*errorcodeptr != 0) goto FAILED;
+            save_hwm = (pcre_uchar *)cd->start_workspace + save_offset;
+            this_hwm = (pcre_uchar *)cd->start_workspace + this_offset;
+            }
+
+          for (hc = save_hwm; hc < this_hwm; hc += LINK_SIZE)
+            {
+            PUT(cd->hwm, 0, GET(hc, 0) + len + ((i != 0)? 2+LINK_SIZE : 1));
+            cd->hwm += LINK_SIZE;
+            }
+          save_hwm = this_hwm;
+          code += len;
+          }
+
+        /* Now chain through the pending brackets, and fill in their length
+        fields (which are holding the chain links pro tem). */
+
+        while (bralink != NULL)
+          {
+          int oldlinkoffset;
+          int offset = (int)(code - bralink + 1);
+          pcre_uchar *bra = code - offset;
+          oldlinkoffset = GET(bra, 1);
+          bralink = (oldlinkoffset == 0)? NULL : bralink - oldlinkoffset;
+          *code++ = OP_KET;
+          PUTINC(code, 0, offset);
+          PUT(bra, 1, offset);
+          }
+        }
+
+      /* If the maximum is unlimited, set a repeater in the final copy. For
+      ONCE brackets, that's all we need to do. However, possessively repeated
+      ONCE brackets can be converted into non-capturing brackets, as the
+      behaviour of (?:xx)++ is the same as (?>xx)++ and this saves having to
+      deal with possessive ONCEs specially.
+
+      Otherwise, when we are doing the actual compile phase, check to see
+      whether this group is one that could match an empty string. If so,
+      convert the initial operator to the S form (e.g. OP_BRA -> OP_SBRA) so
+      that runtime checking can be done. [This check is also applied to ONCE
+      groups at runtime, but in a different way.]
+
+      Then, if the quantifier was possessive and the bracket is not a
+      conditional, we convert the BRA code to the POS form, and the KET code to
+      KETRPOS. (It turns out to be convenient at runtime to detect this kind of
+      subpattern at both the start and at the end.) The use of special opcodes
+      makes it possible to reduce greatly the stack usage in pcre_exec(). If
+      the group is preceded by OP_BRAZERO, convert this to OP_BRAPOSZERO.
+
+      Then, if the minimum number of matches is 1 or 0, cancel the possessive
+      flag so that the default action below, of wrapping everything inside
+      atomic brackets, does not happen. When the minimum is greater than 1,
+      there will be earlier copies of the group, and so we still have to wrap
+      the whole thing. */
+
+      else
+        {
+        pcre_uchar *ketcode = code - 1 - LINK_SIZE;
+        pcre_uchar *bracode = ketcode - GET(ketcode, 1);
+
+        /* Convert possessive ONCE brackets to non-capturing */
+
+        if ((*bracode == OP_ONCE || *bracode == OP_ONCE_NC) &&
+            possessive_quantifier) *bracode = OP_BRA;
+
+        /* For non-possessive ONCE brackets, all we need to do is to
+        set the KET. */
+
+        if (*bracode == OP_ONCE || *bracode == OP_ONCE_NC)
+          *ketcode = OP_KETRMAX + repeat_type;
+
+        /* Handle non-ONCE brackets and possessive ONCEs (which have been
+        converted to non-capturing above). */
+
+        else
+          {
+          /* In the compile phase, check for empty string matching. */
+
+          if (lengthptr == NULL)
+            {
+            pcre_uchar *scode = bracode;
+            do
+              {
+              if (could_be_empty_branch(scode, ketcode, utf, cd))
+                {
+                *bracode += OP_SBRA - OP_BRA;
+                break;
+                }
+              scode += GET(scode, 1);
+              }
+            while (*scode == OP_ALT);
+            }
+
+          /* Handle possessive quantifiers. */
+
+          if (possessive_quantifier)
+            {
+            /* For COND brackets, we wrap the whole thing in a possessively
+            repeated non-capturing bracket, because we have not invented POS
+            versions of the COND opcodes. Because we are moving code along, we
+            must ensure that any pending recursive references are updated. */
+
+            if (*bracode == OP_COND || *bracode == OP_SCOND)
+              {
+              int nlen = (int)(code - bracode);
+              *code = OP_END;
+              adjust_recurse(bracode, 1 + LINK_SIZE, utf, cd, save_hwm);
+              memmove(bracode + 1 + LINK_SIZE, bracode, IN_UCHARS(nlen));
+              code += 1 + LINK_SIZE;
+              nlen += 1 + LINK_SIZE;
+              *bracode = OP_BRAPOS;
+              *code++ = OP_KETRPOS;
+              PUTINC(code, 0, nlen);
+              PUT(bracode, 1, nlen);
+              }
+
+            /* For non-COND brackets, we modify the BRA code and use KETRPOS. */
+
+            else
+              {
+              *bracode += 1;              /* Switch to xxxPOS opcodes */
+              *ketcode = OP_KETRPOS;
+              }
+
+            /* If the minimum is zero, mark it as possessive, then unset the
+            possessive flag when the minimum is 0 or 1. */
+
+            if (brazeroptr != NULL) *brazeroptr = OP_BRAPOSZERO;
+            if (repeat_min < 2) possessive_quantifier = FALSE;
+            }
+
+          /* Non-possessive quantifier */
+
+          else *ketcode = OP_KETRMAX + repeat_type;
+          }
+        }
+      }
+
+    /* If previous is OP_FAIL, it was generated by an empty class [] in
+    JavaScript mode. The other ways in which OP_FAIL can be generated, that is
+    by (*FAIL) or (?!) set previous to NULL, which gives a "nothing to repeat"
+    error above. We can just ignore the repeat in JS case. */
+
+    else if (*previous == OP_FAIL) goto END_REPEAT;
+
+    /* Else there's some kind of shambles */
+
+    else
+      {
+      *errorcodeptr = ERR11;
+      goto FAILED;
+      }
+
+    /* If the character following a repeat is '+', or if certain optimization
+    tests above succeeded, possessive_quantifier is TRUE. For some opcodes,
+    there are special alternative opcodes for this case. For anything else, we
+    wrap the entire repeated item inside OP_ONCE brackets. Logically, the '+'
+    notation is just syntactic sugar, taken from Sun's Java package, but the
+    special opcodes can optimize it.
+
+    Some (but not all) possessively repeated subpatterns have already been
+    completely handled in the code just above. For them, possessive_quantifier
+    is always FALSE at this stage.
+
+    Note that the repeated item starts at tempcode, not at previous, which
+    might be the first part of a string whose (former) last char we repeated.
+
+    Possessifying an 'exact' quantifier has no effect, so we can ignore it. But
+    an 'upto' may follow. We skip over an 'exact' item, and then test the
+    length of what remains before proceeding. */
+
+    if (possessive_quantifier)
+      {
+      int len;
+
+      if (*tempcode == OP_TYPEEXACT)
+        tempcode += PRIV(OP_lengths)[*tempcode] +
+          ((tempcode[1 + IMM2_SIZE] == OP_PROP
+          || tempcode[1 + IMM2_SIZE] == OP_NOTPROP)? 2 : 0);
+
+      else if (*tempcode == OP_EXACT || *tempcode == OP_NOTEXACT)
+        {
+        tempcode += PRIV(OP_lengths)[*tempcode];
+#ifdef SUPPORT_UTF
+        if (utf && HAS_EXTRALEN(tempcode[-1]))
+          tempcode += GET_EXTRALEN(tempcode[-1]);
+#endif
+        }
+
+      len = (int)(code - tempcode);
+      if (len > 0) switch (*tempcode)
+        {
+        case OP_STAR:  *tempcode = OP_POSSTAR; break;
+        case OP_PLUS:  *tempcode = OP_POSPLUS; break;
+        case OP_QUERY: *tempcode = OP_POSQUERY; break;
+        case OP_UPTO:  *tempcode = OP_POSUPTO; break;
+
+        case OP_STARI:  *tempcode = OP_POSSTARI; break;
+        case OP_PLUSI:  *tempcode = OP_POSPLUSI; break;
+        case OP_QUERYI: *tempcode = OP_POSQUERYI; break;
+        case OP_UPTOI:  *tempcode = OP_POSUPTOI; break;
+
+        case OP_NOTSTAR:  *tempcode = OP_NOTPOSSTAR; break;
+        case OP_NOTPLUS:  *tempcode = OP_NOTPOSPLUS; break;
+        case OP_NOTQUERY: *tempcode = OP_NOTPOSQUERY; break;
+        case OP_NOTUPTO:  *tempcode = OP_NOTPOSUPTO; break;
+
+        case OP_NOTSTARI:  *tempcode = OP_NOTPOSSTARI; break;
+        case OP_NOTPLUSI:  *tempcode = OP_NOTPOSPLUSI; break;
+        case OP_NOTQUERYI: *tempcode = OP_NOTPOSQUERYI; break;
+        case OP_NOTUPTOI:  *tempcode = OP_NOTPOSUPTOI; break;
+
+        case OP_TYPESTAR:  *tempcode = OP_TYPEPOSSTAR; break;
+        case OP_TYPEPLUS:  *tempcode = OP_TYPEPOSPLUS; break;
+        case OP_TYPEQUERY: *tempcode = OP_TYPEPOSQUERY; break;
+        case OP_TYPEUPTO:  *tempcode = OP_TYPEPOSUPTO; break;
+
+        /* Because we are moving code along, we must ensure that any
+        pending recursive references are updated. */
+
+        default:
+        *code = OP_END;
+        adjust_recurse(tempcode, 1 + LINK_SIZE, utf, cd, save_hwm);
+        memmove(tempcode + 1 + LINK_SIZE, tempcode, IN_UCHARS(len));
+        code += 1 + LINK_SIZE;
+        len += 1 + LINK_SIZE;
+        tempcode[0] = OP_ONCE;
+        *code++ = OP_KET;
+        PUTINC(code, 0, len);
+        PUT(tempcode, 1, len);
+        break;
+        }
+      }
+
+    /* In all case we no longer have a previous item. We also set the
+    "follows varying string" flag for subsequently encountered reqchars if
+    it isn't already set and we have just passed a varying length item. */
+
+    END_REPEAT:
+    previous = NULL;
+    cd->req_varyopt |= reqvary;
+    break;
+
+
+    /* ===================================================================*/
+    /* Start of nested parenthesized sub-expression, or comment or lookahead or
+    lookbehind or option setting or condition or all the other extended
+    parenthesis forms.  */
+
+    case CHAR_LEFT_PARENTHESIS:
+    newoptions = options;
+    skipbytes = 0;
+    bravalue = OP_CBRA;
+    save_hwm = cd->hwm;
+    reset_bracount = FALSE;
+
+    /* First deal with various "verbs" that can be introduced by '*'. */
+
+    ptr++;
+    if (ptr[0] == CHAR_ASTERISK && (ptr[1] == ':'
+         || (MAX_255(ptr[1]) && ((cd->ctypes[ptr[1]] & ctype_letter) != 0))))
+      {
+      int i, namelen;
+      int arglen = 0;
+      const char *vn = verbnames;
+      const pcre_uchar *name = ptr + 1;
+      const pcre_uchar *arg = NULL;
+      previous = NULL;
+      ptr++;
+      while (MAX_255(*ptr) && (cd->ctypes[*ptr] & ctype_letter) != 0) ptr++;
+      namelen = (int)(ptr - name);
+
+      /* It appears that Perl allows any characters whatsoever, other than
+      a closing parenthesis, to appear in arguments, so we no longer insist on
+      letters, digits, and underscores. */
+
+      if (*ptr == CHAR_COLON)
+        {
+        arg = ++ptr;
+        while (*ptr != 0 && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;
+        arglen = (int)(ptr - arg);
+        if (arglen > (int)MAX_MARK)
+          {
+          *errorcodeptr = ERR75;
+          goto FAILED;
+          }
+        }
+
+      if (*ptr != CHAR_RIGHT_PARENTHESIS)
+        {
+        *errorcodeptr = ERR60;
+        goto FAILED;
+        }
+
+      /* Scan the table of verb names */
+
+      for (i = 0; i < verbcount; i++)
+        {
+        if (namelen == verbs[i].len &&
+            STRNCMP_UC_C8(name, vn, namelen) == 0)
+          {
+          /* Check for open captures before ACCEPT and convert it to
+          ASSERT_ACCEPT if in an assertion. */
+
+          if (verbs[i].op == OP_ACCEPT)
+            {
+            open_capitem *oc;
+            if (arglen != 0)
+              {
+              *errorcodeptr = ERR59;
+              goto FAILED;
+              }
+            cd->had_accept = TRUE;
+            for (oc = cd->open_caps; oc != NULL; oc = oc->next)
+              {
+              *code++ = OP_CLOSE;
+              PUT2INC(code, 0, oc->number);
+              }
+            *code++ = (cd->assert_depth > 0)? OP_ASSERT_ACCEPT : OP_ACCEPT;
+
+            /* Do not set firstchar after *ACCEPT */
+            if (firstchar == REQ_UNSET) firstchar = REQ_NONE;
+            }
+
+          /* Handle other cases with/without an argument */
+
+          else if (arglen == 0)
+            {
+            if (verbs[i].op < 0)   /* Argument is mandatory */
+              {
+              *errorcodeptr = ERR66;
+              goto FAILED;
+              }
+            *code = verbs[i].op;
+            if (*code++ == OP_THEN) cd->external_flags |= PCRE_HASTHEN;
+            }
+
+          else
+            {
+            if (verbs[i].op_arg < 0)   /* Argument is forbidden */
+              {
+              *errorcodeptr = ERR59;
+              goto FAILED;
+              }
+            *code = verbs[i].op_arg;
+            if (*code++ == OP_THEN_ARG) cd->external_flags |= PCRE_HASTHEN;
+            *code++ = arglen;
+            memcpy(code, arg, IN_UCHARS(arglen));
+            code += arglen;
+            *code++ = 0;
+            }
+
+          break;  /* Found verb, exit loop */
+          }
+
+        vn += verbs[i].len + 1;
+        }
+
+      if (i < verbcount) continue;    /* Successfully handled a verb */
+      *errorcodeptr = ERR60;          /* Verb not recognized */
+      goto FAILED;
+      }
+
+    /* Deal with the extended parentheses; all are introduced by '?', and the
+    appearance of any of them means that this is not a capturing group. */
+
+    else if (*ptr == CHAR_QUESTION_MARK)
+      {
+      int i, set, unset, namelen;
+      int *optset;
+      const pcre_uchar *name;
+      pcre_uchar *slot;
+
+      switch (*(++ptr))
+        {
+        case CHAR_NUMBER_SIGN:                 /* Comment; skip to ket */
+        ptr++;
+        while (*ptr != 0 && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;
+        if (*ptr == 0)
+          {
+          *errorcodeptr = ERR18;
+          goto FAILED;
+          }
+        continue;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_VERTICAL_LINE:  /* Reset capture count for each branch */
+        reset_bracount = TRUE;
+        /* Fall through */
+
+        /* ------------------------------------------------------------ */
+        case CHAR_COLON:          /* Non-capturing bracket */
+        bravalue = OP_BRA;
+        ptr++;
+        break;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_LEFT_PARENTHESIS:
+        bravalue = OP_COND;       /* Conditional group */
+
+        /* A condition can be an assertion, a number (referring to a numbered
+        group), a name (referring to a named group), or 'R', referring to
+        recursion. R<digits> and R&name are also permitted for recursion tests.
+
+        There are several syntaxes for testing a named group: (?(name)) is used
+        by Python; Perl 5.10 onwards uses (?(<name>) or (?('name')).
+
+        There are two unfortunate ambiguities, caused by history. (a) 'R' can
+        be the recursive thing or the name 'R' (and similarly for 'R' followed
+        by digits), and (b) a number could be a name that consists of digits.
+        In both cases, we look for a name first; if not found, we try the other
+        cases. */
+
+        /* For conditions that are assertions, check the syntax, and then exit
+        the switch. This will take control down to where bracketed groups,
+        including assertions, are processed. */
+
+        if (ptr[1] == CHAR_QUESTION_MARK && (ptr[2] == CHAR_EQUALS_SIGN ||
+            ptr[2] == CHAR_EXCLAMATION_MARK || ptr[2] == CHAR_LESS_THAN_SIGN))
+          break;
+
+        /* Most other conditions use OP_CREF (a couple change to OP_RREF
+        below), and all need to skip 1+IMM2_SIZE bytes at the start of the group. */
+
+        code[1+LINK_SIZE] = OP_CREF;
+        skipbytes = 1+IMM2_SIZE;
+        refsign = -1;
+
+        /* Check for a test for recursion in a named group. */
+
+        if (ptr[1] == CHAR_R && ptr[2] == CHAR_AMPERSAND)
+          {
+          terminator = -1;
+          ptr += 2;
+          code[1+LINK_SIZE] = OP_RREF;    /* Change the type of test */
+          }
+
+        /* Check for a test for a named group's having been set, using the Perl
+        syntax (?(<name>) or (?('name') */
+
+        else if (ptr[1] == CHAR_LESS_THAN_SIGN)
+          {
+          terminator = CHAR_GREATER_THAN_SIGN;
+          ptr++;
+          }
+        else if (ptr[1] == CHAR_APOSTROPHE)
+          {
+          terminator = CHAR_APOSTROPHE;
+          ptr++;
+          }
+        else
+          {
+          terminator = 0;
+          if (ptr[1] == CHAR_MINUS || ptr[1] == CHAR_PLUS) refsign = *(++ptr);
+          }
+
+        /* We now expect to read a name; any thing else is an error */
+
+        if (!MAX_255(ptr[1]) || (cd->ctypes[ptr[1]] & ctype_word) == 0)
+          {
+          ptr += 1;  /* To get the right offset */
+          *errorcodeptr = ERR28;
+          goto FAILED;
+          }
+
+        /* Read the name, but also get it as a number if it's all digits */
+
+        recno = 0;
+        name = ++ptr;
+        while (MAX_255(*ptr) && (cd->ctypes[*ptr] & ctype_word) != 0)
+          {
+          if (recno >= 0)
+            recno = (IS_DIGIT(*ptr))? recno * 10 + *ptr - CHAR_0 : -1;
+          ptr++;
+          }
+        namelen = (int)(ptr - name);
+
+        if ((terminator > 0 && *ptr++ != terminator) ||
+            *ptr++ != CHAR_RIGHT_PARENTHESIS)
+          {
+          ptr--;      /* Error offset */
+          *errorcodeptr = ERR26;
+          goto FAILED;
+          }
+
+        /* Do no further checking in the pre-compile phase. */
+
+        if (lengthptr != NULL) break;
+
+        /* In the real compile we do the work of looking for the actual
+        reference. If the string started with "+" or "-" we require the rest to
+        be digits, in which case recno will be set. */
+
+        if (refsign > 0)
+          {
+          if (recno <= 0)
+            {
+            *errorcodeptr = ERR58;
+            goto FAILED;
+            }
+          recno = (refsign == CHAR_MINUS)?
+            cd->bracount - recno + 1 : recno +cd->bracount;
+          if (recno <= 0 || recno > cd->final_bracount)
+            {
+            *errorcodeptr = ERR15;
+            goto FAILED;
+            }
+          PUT2(code, 2+LINK_SIZE, recno);
+          break;
+          }
+
+        /* Otherwise (did not start with "+" or "-"), start by looking for the
+        name. If we find a name, add one to the opcode to change OP_CREF or
+        OP_RREF into OP_NCREF or OP_NRREF. These behave exactly the same,
+        except they record that the reference was originally to a name. The
+        information is used to check duplicate names. */
+
+        slot = cd->name_table;
+        for (i = 0; i < cd->names_found; i++)
+          {
+          if (STRNCMP_UC_UC(name, slot+IMM2_SIZE, namelen) == 0) break;
+          slot += cd->name_entry_size;
+          }
+
+        /* Found a previous named subpattern */
+
+        if (i < cd->names_found)
+          {
+          recno = GET2(slot, 0);
+          PUT2(code, 2+LINK_SIZE, recno);
+          code[1+LINK_SIZE]++;
+          }
+
+        /* Search the pattern for a forward reference */
+
+        else if ((i = find_parens(cd, name, namelen,
+                        (options & PCRE_EXTENDED) != 0, utf)) > 0)
+          {
+          PUT2(code, 2+LINK_SIZE, i);
+          code[1+LINK_SIZE]++;
+          }
+
+        /* If terminator == 0 it means that the name followed directly after
+        the opening parenthesis [e.g. (?(abc)...] and in this case there are
+        some further alternatives to try. For the cases where terminator != 0
+        [things like (?(<name>... or (?('name')... or (?(R&name)... ] we have
+        now checked all the possibilities, so give an error. */
+
+        else if (terminator != 0)
+          {
+          *errorcodeptr = ERR15;
+          goto FAILED;
+          }
+
+        /* Check for (?(R) for recursion. Allow digits after R to specify a
+        specific group number. */
+
+        else if (*name == CHAR_R)
+          {
+          recno = 0;
+          for (i = 1; i < namelen; i++)
+            {
+            if (!IS_DIGIT(name[i]))
+              {
+              *errorcodeptr = ERR15;
+              goto FAILED;
+              }
+            recno = recno * 10 + name[i] - CHAR_0;
+            }
+          if (recno == 0) recno = RREF_ANY;
+          code[1+LINK_SIZE] = OP_RREF;      /* Change test type */
+          PUT2(code, 2+LINK_SIZE, recno);
+          }
+
+        /* Similarly, check for the (?(DEFINE) "condition", which is always
+        false. */
+
+        else if (namelen == 6 && STRNCMP_UC_C8(name, STRING_DEFINE, 6) == 0)
+          {
+          code[1+LINK_SIZE] = OP_DEF;
+          skipbytes = 1;
+          }
+
+        /* Check for the "name" actually being a subpattern number. We are
+        in the second pass here, so final_bracount is set. */
+
+        else if (recno > 0 && recno <= cd->final_bracount)
+          {
+          PUT2(code, 2+LINK_SIZE, recno);
+          }
+
+        /* Either an unidentified subpattern, or a reference to (?(0) */
+
+        else
+          {
+          *errorcodeptr = (recno == 0)? ERR35: ERR15;
+          goto FAILED;
+          }
+        break;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_EQUALS_SIGN:                 /* Positive lookahead */
+        bravalue = OP_ASSERT;
+        cd->assert_depth += 1;
+        ptr++;
+        break;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_EXCLAMATION_MARK:            /* Negative lookahead */
+        ptr++;
+        if (*ptr == CHAR_RIGHT_PARENTHESIS)    /* Optimize (?!) */
+          {
+          *code++ = OP_FAIL;
+          previous = NULL;
+          continue;
+          }
+        bravalue = OP_ASSERT_NOT;
+        cd->assert_depth += 1;
+        break;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_LESS_THAN_SIGN:              /* Lookbehind or named define */
+        switch (ptr[1])
+          {
+          case CHAR_EQUALS_SIGN:               /* Positive lookbehind */
+          bravalue = OP_ASSERTBACK;
+          cd->assert_depth += 1;
+          ptr += 2;
+          break;
+
+          case CHAR_EXCLAMATION_MARK:          /* Negative lookbehind */
+          bravalue = OP_ASSERTBACK_NOT;
+          cd->assert_depth += 1;
+          ptr += 2;
+          break;
+
+          default:                /* Could be name define, else bad */
+          if (MAX_255(ptr[1]) && (cd->ctypes[ptr[1]] & ctype_word) != 0)
+            goto DEFINE_NAME;
+          ptr++;                  /* Correct offset for error */
+          *errorcodeptr = ERR24;
+          goto FAILED;
+          }
+        break;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_GREATER_THAN_SIGN:           /* One-time brackets */
+        bravalue = OP_ONCE;
+        ptr++;
+        break;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_C:                 /* Callout - may be followed by digits; */
+        previous_callout = code;     /* Save for later completion */
+        after_manual_callout = 1;    /* Skip one item before completing */
+        *code++ = OP_CALLOUT;
+          {
+          int n = 0;
+          ptr++;
+          while(IS_DIGIT(*ptr))
+            n = n * 10 + *ptr++ - CHAR_0;
+          if (*ptr != CHAR_RIGHT_PARENTHESIS)
+            {
+            *errorcodeptr = ERR39;
+            goto FAILED;
+            }
+          if (n > 255)
+            {
+            *errorcodeptr = ERR38;
+            goto FAILED;
+            }
+          *code++ = n;
+          PUT(code, 0, (int)(ptr - cd->start_pattern + 1)); /* Pattern offset */
+          PUT(code, LINK_SIZE, 0);                          /* Default length */
+          code += 2 * LINK_SIZE;
+          }
+        previous = NULL;
+        continue;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_P:              /* Python-style named subpattern handling */
+        if (*(++ptr) == CHAR_EQUALS_SIGN ||
+            *ptr == CHAR_GREATER_THAN_SIGN)  /* Reference or recursion */
+          {
+          is_recurse = *ptr == CHAR_GREATER_THAN_SIGN;
+          terminator = CHAR_RIGHT_PARENTHESIS;
+          goto NAMED_REF_OR_RECURSE;
+          }
+        else if (*ptr != CHAR_LESS_THAN_SIGN)  /* Test for Python-style defn */
+          {
+          *errorcodeptr = ERR41;
+          goto FAILED;
+          }
+        /* Fall through to handle (?P< as (?< is handled */
+
+
+        /* ------------------------------------------------------------ */
+        DEFINE_NAME:    /* Come here from (?< handling */
+        case CHAR_APOSTROPHE:
+          {
+          terminator = (*ptr == CHAR_LESS_THAN_SIGN)?
+            CHAR_GREATER_THAN_SIGN : CHAR_APOSTROPHE;
+          name = ++ptr;
+
+          while (MAX_255(*ptr) && (cd->ctypes[*ptr] & ctype_word) != 0) ptr++;
+          namelen = (int)(ptr - name);
+
+          /* In the pre-compile phase, just do a syntax check. */
+
+          if (lengthptr != NULL)
+            {
+            if (*ptr != terminator)
+              {
+              *errorcodeptr = ERR42;
+              goto FAILED;
+              }
+            if (cd->names_found >= MAX_NAME_COUNT)
+              {
+              *errorcodeptr = ERR49;
+              goto FAILED;
+              }
+            if (namelen + IMM2_SIZE + 1 > cd->name_entry_size)
+              {
+              cd->name_entry_size = namelen + IMM2_SIZE + 1;
+              if (namelen > MAX_NAME_SIZE)
+                {
+                *errorcodeptr = ERR48;
+                goto FAILED;
+                }
+              }
+            }
+
+          /* In the real compile, create the entry in the table, maintaining
+          alphabetical order. Duplicate names for different numbers are
+          permitted only if PCRE_DUPNAMES is set. Duplicate names for the same
+          number are always OK. (An existing number can be re-used if (?|
+          appears in the pattern.) In either event, a duplicate name results in
+          a duplicate entry in the table, even if the number is the same. This
+          is because the number of names, and hence the table size, is computed
+          in the pre-compile, and it affects various numbers and pointers which
+          would all have to be modified, and the compiled code moved down, if
+          duplicates with the same number were omitted from the table. This
+          doesn't seem worth the hassle. However, *different* names for the
+          same number are not permitted. */
+
+          else
+            {
+            BOOL dupname = FALSE;
+            slot = cd->name_table;
+
+            for (i = 0; i < cd->names_found; i++)
+              {
+              int crc = memcmp(name, slot+IMM2_SIZE, IN_UCHARS(namelen));
+              if (crc == 0)
+                {
+                if (slot[IMM2_SIZE+namelen] == 0)
+                  {
+                  if (GET2(slot, 0) != cd->bracount + 1 &&
+                      (options & PCRE_DUPNAMES) == 0)
+                    {
+                    *errorcodeptr = ERR43;
+                    goto FAILED;
+                    }
+                  else dupname = TRUE;
+                  }
+                else crc = -1;      /* Current name is a substring */
+                }
+
+              /* Make space in the table and break the loop for an earlier
+              name. For a duplicate or later name, carry on. We do this for
+              duplicates so that in the simple case (when ?(| is not used) they
+              are in order of their numbers. */
+
+              if (crc < 0)
+                {
+                memmove(slot + cd->name_entry_size, slot,
+                  IN_UCHARS((cd->names_found - i) * cd->name_entry_size));
+                break;
+                }
+
+              /* Continue the loop for a later or duplicate name */
+
+              slot += cd->name_entry_size;
+              }
+
+            /* For non-duplicate names, check for a duplicate number before
+            adding the new name. */
+
+            if (!dupname)
+              {
+              pcre_uchar *cslot = cd->name_table;
+              for (i = 0; i < cd->names_found; i++)
+                {
+                if (cslot != slot)
+                  {
+                  if (GET2(cslot, 0) == cd->bracount + 1)
+                    {
+                    *errorcodeptr = ERR65;
+                    goto FAILED;
+                    }
+                  }
+                else i--;
+                cslot += cd->name_entry_size;
+                }
+              }
+
+            PUT2(slot, 0, cd->bracount + 1);
+            memcpy(slot + IMM2_SIZE, name, IN_UCHARS(namelen));
+            slot[IMM2_SIZE + namelen] = 0;
+            }
+          }
+
+        /* In both pre-compile and compile, count the number of names we've
+        encountered. */
+
+        cd->names_found++;
+        ptr++;                    /* Move past > or ' */
+        goto NUMBERED_GROUP;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_AMPERSAND:            /* Perl recursion/subroutine syntax */
+        terminator = CHAR_RIGHT_PARENTHESIS;
+        is_recurse = TRUE;
+        /* Fall through */
+
+        /* We come here from the Python syntax above that handles both
+        references (?P=name) and recursion (?P>name), as well as falling
+        through from the Perl recursion syntax (?&name). We also come here from
+        the Perl \k<name> or \k'name' back reference syntax and the \k{name}
+        .NET syntax, and the Oniguruma \g<...> and \g'...' subroutine syntax. */
+
+        NAMED_REF_OR_RECURSE:
+        name = ++ptr;
+        while (MAX_255(*ptr) && (cd->ctypes[*ptr] & ctype_word) != 0) ptr++;
+        namelen = (int)(ptr - name);
+
+        /* In the pre-compile phase, do a syntax check. We used to just set
+        a dummy reference number, because it was not used in the first pass.
+        However, with the change of recursive back references to be atomic,
+        we have to look for the number so that this state can be identified, as
+        otherwise the incorrect length is computed. If it's not a backwards
+        reference, the dummy number will do. */
+
+        if (lengthptr != NULL)
+          {
+          const pcre_uchar *temp;
+
+          if (namelen == 0)
+            {
+            *errorcodeptr = ERR62;
+            goto FAILED;
+            }
+          if (*ptr != terminator)
+            {
+            *errorcodeptr = ERR42;
+            goto FAILED;
+            }
+          if (namelen > MAX_NAME_SIZE)
+            {
+            *errorcodeptr = ERR48;
+            goto FAILED;
+            }
+
+          /* The name table does not exist in the first pass, so we cannot
+          do a simple search as in the code below. Instead, we have to scan the
+          pattern to find the number. It is important that we scan it only as
+          far as we have got because the syntax of named subpatterns has not
+          been checked for the rest of the pattern, and find_parens() assumes
+          correct syntax. In any case, it's a waste of resources to scan
+          further. We stop the scan at the current point by temporarily
+          adjusting the value of cd->endpattern. */
+
+          temp = cd->end_pattern;
+          cd->end_pattern = ptr;
+          recno = find_parens(cd, name, namelen,
+            (options & PCRE_EXTENDED) != 0, utf);
+          cd->end_pattern = temp;
+          if (recno < 0) recno = 0;    /* Forward ref; set dummy number */
+          }
+
+        /* In the real compile, seek the name in the table. We check the name
+        first, and then check that we have reached the end of the name in the
+        table. That way, if the name that is longer than any in the table,
+        the comparison will fail without reading beyond the table entry. */
+
+        else
+          {
+          slot = cd->name_table;
+          for (i = 0; i < cd->names_found; i++)
+            {
+            if (STRNCMP_UC_UC(name, slot+IMM2_SIZE, namelen) == 0 &&
+                slot[IMM2_SIZE+namelen] == 0)
+              break;
+            slot += cd->name_entry_size;
+            }
+
+          if (i < cd->names_found)         /* Back reference */
+            {
+            recno = GET2(slot, 0);
+            }
+          else if ((recno =                /* Forward back reference */
+                    find_parens(cd, name, namelen,
+                      (options & PCRE_EXTENDED) != 0, utf)) <= 0)
+            {
+            *errorcodeptr = ERR15;
+            goto FAILED;
+            }
+          }
+
+        /* In both phases, we can now go to the code than handles numerical
+        recursion or backreferences. */
+
+        if (is_recurse) goto HANDLE_RECURSION;
+          else goto HANDLE_REFERENCE;
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_R:              /* Recursion */
+        ptr++;                    /* Same as (?0)      */
+        /* Fall through */
+
+
+        /* ------------------------------------------------------------ */
+        case CHAR_MINUS: case CHAR_PLUS:  /* Recursion or subroutine */
+        case CHAR_0: case CHAR_1: case CHAR_2: case CHAR_3: case CHAR_4:
+        case CHAR_5: case CHAR_6: case CHAR_7: case CHAR_8: case CHAR_9:
+          {
+          const pcre_uchar *called;
+          terminator = CHAR_RIGHT_PARENTHESIS;
+
+          /* Come here from the \g<...> and \g'...' code (Oniguruma
+          compatibility). However, the syntax has been checked to ensure that
+          the ... are a (signed) number, so that neither ERR63 nor ERR29 will
+          be called on this path, nor with the jump to OTHER_CHAR_AFTER_QUERY
+          ever be taken. */
+
+          HANDLE_NUMERICAL_RECURSION:
+
+          if ((refsign = *ptr) == CHAR_PLUS)
+            {
+            ptr++;
+            if (!IS_DIGIT(*ptr))
+              {
+              *errorcodeptr = ERR63;
+              goto FAILED;
+              }
+            }
+          else if (refsign == CHAR_MINUS)
+            {
+            if (!IS_DIGIT(ptr[1]))
+              goto OTHER_CHAR_AFTER_QUERY;
+            ptr++;
+            }
+
+          recno = 0;
+          while(IS_DIGIT(*ptr))
+            recno = recno * 10 + *ptr++ - CHAR_0;
+
+          if (*ptr != terminator)
+            {
+            *errorcodeptr = ERR29;
+            goto FAILED;
+            }
+
+          if (refsign == CHAR_MINUS)
+            {
+            if (recno == 0)
+              {
+              *errorcodeptr = ERR58;
+              goto FAILED;
+              }
+            recno = cd->bracount - recno + 1;
+            if (recno <= 0)
+              {
+              *errorcodeptr = ERR15;
+              goto FAILED;
+              }
+            }
+          else if (refsign == CHAR_PLUS)
+            {
+            if (recno == 0)
+              {
+              *errorcodeptr = ERR58;
+              goto FAILED;
+              }
+            recno += cd->bracount;
+            }
+
+          /* Come here from code above that handles a named recursion */
+
+          HANDLE_RECURSION:
+
+          previous = code;
+          called = cd->start_code;
+
+          /* When we are actually compiling, find the bracket that is being
+          referenced. Temporarily end the regex in case it doesn't exist before
+          this point. If we end up with a forward reference, first check that
+          the bracket does occur later so we can give the error (and position)
+          now. Then remember this forward reference in the workspace so it can
+          be filled in at the end. */
+
+          if (lengthptr == NULL)
+            {
+            *code = OP_END;
+            if (recno != 0)
+              called = PRIV(find_bracket)(cd->start_code, utf, recno);
+
+            /* Forward reference */
+
+            if (called == NULL)
+              {
+              if (find_parens(cd, NULL, recno,
+                    (options & PCRE_EXTENDED) != 0, utf) < 0)
+                {
+                *errorcodeptr = ERR15;
+                goto FAILED;
+                }
+
+              /* Fudge the value of "called" so that when it is inserted as an
+              offset below, what it actually inserted is the reference number
+              of the group. Then remember the forward reference. */
+
+              called = cd->start_code + recno;
+              if (cd->hwm >= cd->start_workspace + cd->workspace_size -
+                  WORK_SIZE_SAFETY_MARGIN)
+                {
+                *errorcodeptr = expand_workspace(cd);
+                if (*errorcodeptr != 0) goto FAILED;
+                }
+              PUTINC(cd->hwm, 0, (int)(code + 1 - cd->start_code));
+              }
+
+            /* If not a forward reference, and the subpattern is still open,
+            this is a recursive call. We check to see if this is a left
+            recursion that could loop for ever, and diagnose that case. We
+            must not, however, do this check if we are in a conditional
+            subpattern because the condition might be testing for recursion in
+            a pattern such as /(?(R)a+|(?R)b)/, which is perfectly valid.
+            Forever loops are also detected at runtime, so those that occur in
+            conditional subpatterns will be picked up then. */
+
+            else if (GET(called, 1) == 0 && cond_depth <= 0 &&
+                     could_be_empty(called, code, bcptr, utf, cd))
+              {
+              *errorcodeptr = ERR40;
+              goto FAILED;
+              }
+            }
+
+          /* Insert the recursion/subroutine item. It does not have a set first
+          character (relevant if it is repeated, because it will then be
+          wrapped with ONCE brackets). */
+
+          *code = OP_RECURSE;
+          PUT(code, 1, (int)(called - cd->start_code));
+          code += 1 + LINK_SIZE;
+          groupsetfirstchar = FALSE;
+          }
+
+        /* Can't determine a first byte now */
+
+        if (firstchar == REQ_UNSET) firstchar = REQ_NONE;
+        continue;
+
+
+        /* ------------------------------------------------------------ */
+        default:              /* Other characters: check option setting */
+        OTHER_CHAR_AFTER_QUERY:
+        set = unset = 0;
+        optset = &set;
+
+        while (*ptr != CHAR_RIGHT_PARENTHESIS && *ptr != CHAR_COLON)
+          {
+          switch (*ptr++)
+            {
+            case CHAR_MINUS: optset = &unset; break;
+
+            case CHAR_J:    /* Record that it changed in the external options */
+            *optset |= PCRE_DUPNAMES;
+            cd->external_flags |= PCRE_JCHANGED;
+            break;
+
+            case CHAR_i: *optset |= PCRE_CASELESS; break;
+            case CHAR_m: *optset |= PCRE_MULTILINE; break;
+            case CHAR_s: *optset |= PCRE_DOTALL; break;
+            case CHAR_x: *optset |= PCRE_EXTENDED; break;
+            case CHAR_U: *optset |= PCRE_UNGREEDY; break;
+            case CHAR_X: *optset |= PCRE_EXTRA; break;
+
+            default:  *errorcodeptr = ERR12;
+                      ptr--;    /* Correct the offset */
+                      goto FAILED;
+            }
+          }
+
+        /* Set up the changed option bits, but don't change anything yet. */
+
+        newoptions = (options | set) & (~unset);
+
+        /* If the options ended with ')' this is not the start of a nested
+        group with option changes, so the options change at this level. If this
+        item is right at the start of the pattern, the options can be
+        abstracted and made external in the pre-compile phase, and ignored in
+        the compile phase. This can be helpful when matching -- for instance in
+        caseless checking of required bytes.
+
+        If the code pointer is not (cd->start_code + 1 + LINK_SIZE), we are
+        definitely *not* at the start of the pattern because something has been
+        compiled. In the pre-compile phase, however, the code pointer can have
+        that value after the start, because it gets reset as code is discarded
+        during the pre-compile. However, this can happen only at top level - if
+        we are within parentheses, the starting BRA will still be present. At
+        any parenthesis level, the length value can be used to test if anything
+        has been compiled at that level. Thus, a test for both these conditions
+        is necessary to ensure we correctly detect the start of the pattern in
+        both phases.
+
+        If we are not at the pattern start, reset the greedy defaults and the
+        case value for firstchar and reqchar. */
+
+        if (*ptr == CHAR_RIGHT_PARENTHESIS)
+          {
+          if (code == cd->start_code + 1 + LINK_SIZE &&
+               (lengthptr == NULL || *lengthptr == 2 + 2*LINK_SIZE))
+            {
+            cd->external_options = newoptions;
+            }
+          else
+            {
+            greedy_default = ((newoptions & PCRE_UNGREEDY) != 0);
+            greedy_non_default = greedy_default ^ 1;
+            req_caseopt = ((newoptions & PCRE_CASELESS) != 0)? REQ_CASELESS:0;
+            }
+
+          /* Change options at this level, and pass them back for use
+          in subsequent branches. */
+
+          *optionsptr = options = newoptions;
+          previous = NULL;       /* This item can't be repeated */
+          continue;              /* It is complete */
+          }
+
+        /* If the options ended with ':' we are heading into a nested group
+        with possible change of options. Such groups are non-capturing and are
+        not assertions of any kind. All we need to do is skip over the ':';
+        the newoptions value is handled below. */
+
+        bravalue = OP_BRA;
+        ptr++;
+        }     /* End of switch for character following (? */
+      }       /* End of (? handling */
+
+    /* Opening parenthesis not followed by '*' or '?'. If PCRE_NO_AUTO_CAPTURE
+    is set, all unadorned brackets become non-capturing and behave like (?:...)
+    brackets. */
+
+    else if ((options & PCRE_NO_AUTO_CAPTURE) != 0)
+      {
+      bravalue = OP_BRA;
+      }
+
+    /* Else we have a capturing group. */
+
+    else
+      {
+      NUMBERED_GROUP:
+      cd->bracount += 1;
+      PUT2(code, 1+LINK_SIZE, cd->bracount);
+      skipbytes = IMM2_SIZE;
+      }
+
+    /* Process nested bracketed regex. Assertions used not to be repeatable,
+    but this was changed for Perl compatibility, so all kinds can now be
+    repeated. We copy code into a non-register variable (tempcode) in order to
+    be able to pass its address because some compilers complain otherwise. */
+
+    previous = code;                      /* For handling repetition */
+    *code = bravalue;
+    tempcode = code;
+    tempreqvary = cd->req_varyopt;        /* Save value before bracket */
+    tempbracount = cd->bracount;          /* Save value before bracket */
+    length_prevgroup = 0;                 /* Initialize for pre-compile phase */
+
+    if (!compile_regex(
+         newoptions,                      /* The complete new option state */
+         &tempcode,                       /* Where to put code (updated) */
+         &ptr,                            /* Input pointer (updated) */
+         errorcodeptr,                    /* Where to put an error message */
+         (bravalue == OP_ASSERTBACK ||
+          bravalue == OP_ASSERTBACK_NOT), /* TRUE if back assert */
+         reset_bracount,                  /* True if (?| group */
+         skipbytes,                       /* Skip over bracket number */
+         cond_depth +
+           ((bravalue == OP_COND)?1:0),   /* Depth of condition subpatterns */
+         &subfirstchar,                   /* For possible first char */
+         &subreqchar,                     /* For possible last char */
+         bcptr,                           /* Current branch chain */
+         cd,                              /* Tables block */
+         (lengthptr == NULL)? NULL :      /* Actual compile phase */
+           &length_prevgroup              /* Pre-compile phase */
+         ))
+      goto FAILED;
+
+    /* If this was an atomic group and there are no capturing groups within it,
+    generate OP_ONCE_NC instead of OP_ONCE. */
+
+    if (bravalue == OP_ONCE && cd->bracount <= tempbracount)
+      *code = OP_ONCE_NC;
+
+    if (bravalue >= OP_ASSERT && bravalue <= OP_ASSERTBACK_NOT)
+      cd->assert_depth -= 1;
+
+    /* At the end of compiling, code is still pointing to the start of the
+    group, while tempcode has been updated to point past the end of the group.
+    The pattern pointer (ptr) is on the bracket.
+
+    If this is a conditional bracket, check that there are no more than
+    two branches in the group, or just one if it's a DEFINE group. We do this
+    in the real compile phase, not in the pre-pass, where the whole group may
+    not be available. */
+
+    if (bravalue == OP_COND && lengthptr == NULL)
+      {
+      pcre_uchar *tc = code;
+      int condcount = 0;
+
+      do {
+         condcount++;
+         tc += GET(tc,1);
+         }
+      while (*tc != OP_KET);
+
+      /* A DEFINE group is never obeyed inline (the "condition" is always
+      false). It must have only one branch. */
+
+      if (code[LINK_SIZE+1] == OP_DEF)
+        {
+        if (condcount > 1)
+          {
+          *errorcodeptr = ERR54;
+          goto FAILED;
+          }
+        bravalue = OP_DEF;   /* Just a flag to suppress char handling below */
+        }
+
+      /* A "normal" conditional group. If there is just one branch, we must not
+      make use of its firstchar or reqchar, because this is equivalent to an
+      empty second branch. */
+
+      else
+        {
+        if (condcount > 2)
+          {
+          *errorcodeptr = ERR27;
+          goto FAILED;
+          }
+        if (condcount == 1) subfirstchar = subreqchar = REQ_NONE;
+        }
+      }
+
+    /* Error if hit end of pattern */
+
+    if (*ptr != CHAR_RIGHT_PARENTHESIS)
+      {
+      *errorcodeptr = ERR14;
+      goto FAILED;
+      }
+
+    /* In the pre-compile phase, update the length by the length of the group,
+    less the brackets at either end. Then reduce the compiled code to just a
+    set of non-capturing brackets so that it doesn't use much memory if it is
+    duplicated by a quantifier.*/
+
+    if (lengthptr != NULL)
+      {
+      if (OFLOW_MAX - *lengthptr < length_prevgroup - 2 - 2*LINK_SIZE)
+        {
+        *errorcodeptr = ERR20;
+        goto FAILED;
+        }
+      *lengthptr += length_prevgroup - 2 - 2*LINK_SIZE;
+      code++;   /* This already contains bravalue */
+      PUTINC(code, 0, 1 + LINK_SIZE);
+      *code++ = OP_KET;
+      PUTINC(code, 0, 1 + LINK_SIZE);
+      break;    /* No need to waste time with special character handling */
+      }
+
+    /* Otherwise update the main code pointer to the end of the group. */
+
+    code = tempcode;
+
+    /* For a DEFINE group, required and first character settings are not
+    relevant. */
+
+    if (bravalue == OP_DEF) break;
+
+    /* Handle updating of the required and first characters for other types of
+    group. Update for normal brackets of all kinds, and conditions with two
+    branches (see code above). If the bracket is followed by a quantifier with
+    zero repeat, we have to back off. Hence the definition of zeroreqchar and
+    zerofirstchar outside the main loop so that they can be accessed for the
+    back off. */
+
+    zeroreqchar = reqchar;
+    zerofirstchar = firstchar;
+    groupsetfirstchar = FALSE;
+
+    if (bravalue >= OP_ONCE)
+      {
+      /* If we have not yet set a firstchar in this branch, take it from the
+      subpattern, remembering that it was set here so that a repeat of more
+      than one can replicate it as reqchar if necessary. If the subpattern has
+      no firstchar, set "none" for the whole branch. In both cases, a zero
+      repeat forces firstchar to "none". */
+
+      if (firstchar == REQ_UNSET)
+        {
+        if (subfirstchar >= 0)
+          {
+          firstchar = subfirstchar;
+          groupsetfirstchar = TRUE;
+          }
+        else firstchar = REQ_NONE;
+        zerofirstchar = REQ_NONE;
+        }
+
+      /* If firstchar was previously set, convert the subpattern's firstchar
+      into reqchar if there wasn't one, using the vary flag that was in
+      existence beforehand. */
+
+      else if (subfirstchar >= 0 && subreqchar < 0)
+        subreqchar = subfirstchar | tempreqvary;
+
+      /* If the subpattern set a required byte (or set a first byte that isn't
+      really the first byte - see above), set it. */
+
+      if (subreqchar >= 0) reqchar = subreqchar;
+      }
+
+    /* For a forward assertion, we take the reqchar, if set. This can be
+    helpful if the pattern that follows the assertion doesn't set a different
+    char. For example, it's useful for /(?=abcde).+/. We can't set firstchar
+    for an assertion, however because it leads to incorrect effect for patterns
+    such as /(?=a)a.+/ when the "real" "a" would then become a reqchar instead
+    of a firstchar. This is overcome by a scan at the end if there's no
+    firstchar, looking for an asserted first char. */
+
+    else if (bravalue == OP_ASSERT && subreqchar >= 0) reqchar = subreqchar;
+    break;     /* End of processing '(' */
+
+
+    /* ===================================================================*/
+    /* Handle metasequences introduced by \. For ones like \d, the ESC_ values
+    are arranged to be the negation of the corresponding OP_values in the
+    default case when PCRE_UCP is not set. For the back references, the values
+    are ESC_REF plus the reference number. Only back references and those types
+    that consume a character may be repeated. We can test for values between
+    ESC_b and ESC_Z for the latter; this may have to change if any new ones are
+    ever created. */
+
+    case CHAR_BACKSLASH:
+    tempptr = ptr;
+    c = check_escape(&ptr, errorcodeptr, cd->bracount, options, FALSE);
+    if (*errorcodeptr != 0) goto FAILED;
+
+    if (c < 0)
+      {
+      if (-c == ESC_Q)            /* Handle start of quoted string */
+        {
+        if (ptr[1] == CHAR_BACKSLASH && ptr[2] == CHAR_E)
+          ptr += 2;               /* avoid empty string */
+            else inescq = TRUE;
+        continue;
+        }
+
+      if (-c == ESC_E) continue;  /* Perl ignores an orphan \E */
+
+      /* For metasequences that actually match a character, we disable the
+      setting of a first character if it hasn't already been set. */
+
+      if (firstchar == REQ_UNSET && -c > ESC_b && -c < ESC_Z)
+        firstchar = REQ_NONE;
+
+      /* Set values to reset to if this is followed by a zero repeat. */
+
+      zerofirstchar = firstchar;
+      zeroreqchar = reqchar;
+
+      /* \g<name> or \g'name' is a subroutine call by name and \g<n> or \g'n'
+      is a subroutine call by number (Oniguruma syntax). In fact, the value
+      -ESC_g is returned only for these cases. So we don't need to check for <
+      or ' if the value is -ESC_g. For the Perl syntax \g{n} the value is
+      -ESC_REF+n, and for the Perl syntax \g{name} the result is -ESC_k (as
+      that is a synonym for a named back reference). */
+
+      if (-c == ESC_g)
+        {
+        const pcre_uchar *p;
+        save_hwm = cd->hwm;   /* Normally this is set when '(' is read */
+        terminator = (*(++ptr) == CHAR_LESS_THAN_SIGN)?
+          CHAR_GREATER_THAN_SIGN : CHAR_APOSTROPHE;
+
+        /* These two statements stop the compiler for warning about possibly
+        unset variables caused by the jump to HANDLE_NUMERICAL_RECURSION. In
+        fact, because we actually check for a number below, the paths that
+        would actually be in error are never taken. */
+
+        skipbytes = 0;
+        reset_bracount = FALSE;
+
+        /* Test for a name */
+
+        if (ptr[1] != CHAR_PLUS && ptr[1] != CHAR_MINUS)
+          {
+          BOOL is_a_number = TRUE;
+          for (p = ptr + 1; *p != 0 && *p != terminator; p++)
+            {
+            if (!MAX_255(*p)) { is_a_number = FALSE; break; }
+            if ((cd->ctypes[*p] & ctype_digit) == 0) is_a_number = FALSE;
+            if ((cd->ctypes[*p] & ctype_word) == 0) break;
+            }
+          if (*p != terminator)
+            {
+            *errorcodeptr = ERR57;
+            break;
+            }
+          if (is_a_number)
+            {
+            ptr++;
+            goto HANDLE_NUMERICAL_RECURSION;
+            }
+          is_recurse = TRUE;
+          goto NAMED_REF_OR_RECURSE;
+          }
+
+        /* Test a signed number in angle brackets or quotes. */
+
+        p = ptr + 2;
+        while (IS_DIGIT(*p)) p++;
+        if (*p != terminator)
+          {
+          *errorcodeptr = ERR57;
+          break;
+          }
+        ptr++;
+        goto HANDLE_NUMERICAL_RECURSION;
+        }
+
+      /* \k<name> or \k'name' is a back reference by name (Perl syntax).
+      We also support \k{name} (.NET syntax).  */
+
+      if (-c == ESC_k)
+        {
+        if ((ptr[1] != CHAR_LESS_THAN_SIGN &&
+          ptr[1] != CHAR_APOSTROPHE && ptr[1] != CHAR_LEFT_CURLY_BRACKET))
+          {
+          *errorcodeptr = ERR69;
+          break;
+          }
+        is_recurse = FALSE;
+        terminator = (*(++ptr) == CHAR_LESS_THAN_SIGN)?
+          CHAR_GREATER_THAN_SIGN : (*ptr == CHAR_APOSTROPHE)?
+          CHAR_APOSTROPHE : CHAR_RIGHT_CURLY_BRACKET;
+        goto NAMED_REF_OR_RECURSE;
+        }
+
+      /* Back references are handled specially; must disable firstchar if
+      not set to cope with cases like (?=(\w+))\1: which would otherwise set
+      ':' later. */
+
+      if (-c >= ESC_REF)
+        {
+        open_capitem *oc;
+        recno = -c - ESC_REF;
+
+        HANDLE_REFERENCE:    /* Come here from named backref handling */
+        if (firstchar == REQ_UNSET) firstchar = REQ_NONE;
+        previous = code;
+        *code++ = ((options & PCRE_CASELESS) != 0)? OP_REFI : OP_REF;
+        PUT2INC(code, 0, recno);
+        cd->backref_map |= (recno < 32)? (1 << recno) : 1;
+        if (recno > cd->top_backref) cd->top_backref = recno;
+
+        /* Check to see if this back reference is recursive, that it, it
+        is inside the group that it references. A flag is set so that the
+        group can be made atomic. */
+
+        for (oc = cd->open_caps; oc != NULL; oc = oc->next)
+          {
+          if (oc->number == recno)
+            {
+            oc->flag = TRUE;
+            break;
+            }
+          }
+        }
+
+      /* So are Unicode property matches, if supported. */
+
+#ifdef SUPPORT_UCP
+      else if (-c == ESC_P || -c == ESC_p)
+        {
+        BOOL negated;
+        int pdata;
+        int ptype = get_ucp(&ptr, &negated, &pdata, errorcodeptr);
+        if (ptype < 0) goto FAILED;
+        previous = code;
+        *code++ = ((-c == ESC_p) != negated)? OP_PROP : OP_NOTPROP;
+        *code++ = ptype;
+        *code++ = pdata;
+        }
+#else
+
+      /* If Unicode properties are not supported, \X, \P, and \p are not
+      allowed. */
+
+      else if (-c == ESC_X || -c == ESC_P || -c == ESC_p)
+        {
+        *errorcodeptr = ERR45;
+        goto FAILED;
+        }
+#endif
+
+      /* For the rest (including \X when Unicode properties are supported), we
+      can obtain the OP value by negating the escape value in the default
+      situation when PCRE_UCP is not set. When it *is* set, we substitute
+      Unicode property tests. Note that \b and \B do a one-character
+      lookbehind. */
+
+      else
+        {
+        if ((-c == ESC_b || -c == ESC_B) && cd->max_lookbehind == 0)
+          cd->max_lookbehind = 1;
+#ifdef SUPPORT_UCP
+        if (-c >= ESC_DU && -c <= ESC_wu)
+          {
+          nestptr = ptr + 1;                   /* Where to resume */
+          ptr = substitutes[-c - ESC_DU] - 1;  /* Just before substitute */
+          }
+        else
+#endif
+        /* In non-UTF-8 mode, we turn \C into OP_ALLANY instead of OP_ANYBYTE
+        so that it works in DFA mode and in lookbehinds. */
+
+          {
+          previous = (-c > ESC_b && -c < ESC_Z)? code : NULL;
+          *code++ = (!utf && c == -ESC_C)? OP_ALLANY : -c;
+          }
+        }
+      continue;
+      }
+
+    /* We have a data character whose value is in c. In UTF-8 mode it may have
+    a value > 127. We set its representation in the length/buffer, and then
+    handle it as a data character. */
+
+#ifdef SUPPORT_UTF
+    if (utf && c > MAX_VALUE_FOR_SINGLE_CHAR)
+      mclength = PRIV(ord2utf)(c, mcbuffer);
+    else
+#endif
+
+     {
+     mcbuffer[0] = c;
+     mclength = 1;
+     }
+    goto ONE_CHAR;
+
+
+    /* ===================================================================*/
+    /* Handle a literal character. It is guaranteed not to be whitespace or #
+    when the extended flag is set. If we are in UTF-8 mode, it may be a
+    multi-byte literal character. */
+
+    default:
+    NORMAL_CHAR:
+    mclength = 1;
+    mcbuffer[0] = c;
+
+#ifdef SUPPORT_UTF
+    if (utf && HAS_EXTRALEN(c))
+      ACROSSCHAR(TRUE, ptr[1], mcbuffer[mclength++] = *(++ptr));
+#endif
+
+    /* At this point we have the character's bytes in mcbuffer, and the length
+    in mclength. When not in UTF-8 mode, the length is always 1. */
+
+    ONE_CHAR:
+    previous = code;
+    *code++ = ((options & PCRE_CASELESS) != 0)? OP_CHARI : OP_CHAR;
+    for (c = 0; c < mclength; c++) *code++ = mcbuffer[c];
+
+    /* Remember if \r or \n were seen */
+
+    if (mcbuffer[0] == CHAR_CR || mcbuffer[0] == CHAR_NL)
+      cd->external_flags |= PCRE_HASCRORLF;
+
+    /* Set the first and required bytes appropriately. If no previous first
+    byte, set it from this character, but revert to none on a zero repeat.
+    Otherwise, leave the firstchar value alone, and don't change it on a zero
+    repeat. */
+
+    if (firstchar == REQ_UNSET)
+      {
+      zerofirstchar = REQ_NONE;
+      zeroreqchar = reqchar;
+
+      /* If the character is more than one byte long, we can set firstchar
+      only if it is not to be matched caselessly. */
+
+      if (mclength == 1 || req_caseopt == 0)
+        {
+        firstchar = mcbuffer[0] | req_caseopt;
+        if (mclength != 1) reqchar = code[-1] | cd->req_varyopt;
+        }
+      else firstchar = reqchar = REQ_NONE;
+      }
+
+    /* firstchar was previously set; we can set reqchar only if the length is
+    1 or the matching is caseful. */
+
+    else
+      {
+      zerofirstchar = firstchar;
+      zeroreqchar = reqchar;
+      if (mclength == 1 || req_caseopt == 0)
+        reqchar = code[-1] | req_caseopt | cd->req_varyopt;
+      }
+
+    break;            /* End of literal character handling */
+    }
+  }                   /* end of big loop */
+
+
+/* Control never reaches here by falling through, only by a goto for all the
+error states. Pass back the position in the pattern so that it can be displayed
+to the user for diagnosing the error. */
+
+FAILED:
+*ptrptr = ptr;
+return FALSE;
+}
+
+
+
+
+/*************************************************
+*     Compile sequence of alternatives           *
+*************************************************/
+
+/* On entry, ptr is pointing past the bracket character, but on return it
+points to the closing bracket, or vertical bar, or end of string. The code
+variable is pointing at the byte into which the BRA operator has been stored.
+This function is used during the pre-compile phase when we are trying to find
+out the amount of memory needed, as well as during the real compile phase. The
+value of lengthptr distinguishes the two phases.
+
+Arguments:
+  options        option bits, including any changes for this subpattern
+  codeptr        -> the address of the current code pointer
+  ptrptr         -> the address of the current pattern pointer
+  errorcodeptr   -> pointer to error code variable
+  lookbehind     TRUE if this is a lookbehind assertion
+  reset_bracount TRUE to reset the count for each branch
+  skipbytes      skip this many bytes at start (for brackets and OP_COND)
+  cond_depth     depth of nesting for conditional subpatterns
+  firstcharptr   place to put the first required character, or a negative number
+  reqcharptr     place to put the last required character, or a negative number
+  bcptr          pointer to the chain of currently open branches
+  cd             points to the data block with tables pointers etc.
+  lengthptr      NULL during the real compile phase
+                 points to length accumulator during pre-compile phase
+
+Returns:         TRUE on success
+*/
+
+static BOOL
+compile_regex(int options, pcre_uchar **codeptr, const pcre_uchar **ptrptr,
+  int *errorcodeptr, BOOL lookbehind, BOOL reset_bracount, int skipbytes,
+  int cond_depth, pcre_int32 *firstcharptr, pcre_int32 *reqcharptr,
+  branch_chain *bcptr, compile_data *cd, int *lengthptr)
+{
+const pcre_uchar *ptr = *ptrptr;
+pcre_uchar *code = *codeptr;
+pcre_uchar *last_branch = code;
+pcre_uchar *start_bracket = code;
+pcre_uchar *reverse_count = NULL;
+open_capitem capitem;
+int capnumber = 0;
+pcre_int32 firstchar, reqchar;
+pcre_int32 branchfirstchar, branchreqchar;
+int length;
+int orig_bracount;
+int max_bracount;
+branch_chain bc;
+
+bc.outer = bcptr;
+bc.current_branch = code;
+
+firstchar = reqchar = REQ_UNSET;
+
+/* Accumulate the length for use in the pre-compile phase. Start with the
+length of the BRA and KET and any extra bytes that are required at the
+beginning. We accumulate in a local variable to save frequent testing of
+lenthptr for NULL. We cannot do this by looking at the value of code at the
+start and end of each alternative, because compiled items are discarded during
+the pre-compile phase so that the work space is not exceeded. */
+
+length = 2 + 2*LINK_SIZE + skipbytes;
+
+/* WARNING: If the above line is changed for any reason, you must also change
+the code that abstracts option settings at the start of the pattern and makes
+them global. It tests the value of length for (2 + 2*LINK_SIZE) in the
+pre-compile phase to find out whether anything has yet been compiled or not. */
+
+/* If this is a capturing subpattern, add to the chain of open capturing items
+so that we can detect them if (*ACCEPT) is encountered. This is also used to
+detect groups that contain recursive back references to themselves. Note that
+only OP_CBRA need be tested here; changing this opcode to one of its variants,
+e.g. OP_SCBRAPOS, happens later, after the group has been compiled. */
+
+if (*code == OP_CBRA)
+  {
+  capnumber = GET2(code, 1 + LINK_SIZE);
+  capitem.number = capnumber;
+  capitem.next = cd->open_caps;
+  capitem.flag = FALSE;
+  cd->open_caps = &capitem;
+  }
+
+/* Offset is set zero to mark that this bracket is still open */
+
+PUT(code, 1, 0);
+code += 1 + LINK_SIZE + skipbytes;
+
+/* Loop for each alternative branch */
+
+orig_bracount = max_bracount = cd->bracount;
+for (;;)
+  {
+  /* For a (?| group, reset the capturing bracket count so that each branch
+  uses the same numbers. */
+
+  if (reset_bracount) cd->bracount = orig_bracount;
+
+  /* Set up dummy OP_REVERSE if lookbehind assertion */
+
+  if (lookbehind)
+    {
+    *code++ = OP_REVERSE;
+    reverse_count = code;
+    PUTINC(code, 0, 0);
+    length += 1 + LINK_SIZE;
+    }
+
+  /* Now compile the branch; in the pre-compile phase its length gets added
+  into the length. */
+
+  if (!compile_branch(&options, &code, &ptr, errorcodeptr, &branchfirstchar,
+        &branchreqchar, &bc, cond_depth, cd,
+        (lengthptr == NULL)? NULL : &length))
+    {
+    *ptrptr = ptr;
+    return FALSE;
+    }
+
+  /* Keep the highest bracket count in case (?| was used and some branch
+  has fewer than the rest. */
+
+  if (cd->bracount > max_bracount) max_bracount = cd->bracount;
+
+  /* In the real compile phase, there is some post-processing to be done. */
+
+  if (lengthptr == NULL)
+    {
+    /* If this is the first branch, the firstchar and reqchar values for the
+    branch become the values for the regex. */
+
+    if (*last_branch != OP_ALT)
+      {
+      firstchar = branchfirstchar;
+      reqchar = branchreqchar;
+      }
+
+    /* If this is not the first branch, the first char and reqchar have to
+    match the values from all the previous branches, except that if the
+    previous value for reqchar didn't have REQ_VARY set, it can still match,
+    and we set REQ_VARY for the regex. */
+
+    else
+      {
+      /* If we previously had a firstchar, but it doesn't match the new branch,
+      we have to abandon the firstchar for the regex, but if there was
+      previously no reqchar, it takes on the value of the old firstchar. */
+
+      if (firstchar >= 0 && firstchar != branchfirstchar)
+        {
+        if (reqchar < 0) reqchar = firstchar;
+        firstchar = REQ_NONE;
+        }
+
+      /* If we (now or from before) have no firstchar, a firstchar from the
+      branch becomes a reqchar if there isn't a branch reqchar. */
+
+      if (firstchar < 0 && branchfirstchar >= 0 && branchreqchar < 0)
+          branchreqchar = branchfirstchar;
+
+      /* Now ensure that the reqchars match */
+
+      if ((reqchar & ~REQ_VARY) != (branchreqchar & ~REQ_VARY))
+        reqchar = REQ_NONE;
+      else reqchar |= branchreqchar;   /* To "or" REQ_VARY */
+      }
+
+    /* If lookbehind, check that this branch matches a fixed-length string, and
+    put the length into the OP_REVERSE item. Temporarily mark the end of the
+    branch with OP_END. If the branch contains OP_RECURSE, the result is -3
+    because there may be forward references that we can't check here. Set a
+    flag to cause another lookbehind check at the end. Why not do it all at the
+    end? Because common, erroneous checks are picked up here and the offset of
+    the problem can be shown. */
+
+    if (lookbehind)
+      {
+      int fixed_length;
+      *code = OP_END;
+      fixed_length = find_fixedlength(last_branch,  (options & PCRE_UTF8) != 0,
+        FALSE, cd);
+      DPRINTF(("fixed length = %d\n", fixed_length));
+      if (fixed_length == -3)
+        {
+        cd->check_lookbehind = TRUE;
+        }
+      else if (fixed_length < 0)
+        {
+        *errorcodeptr = (fixed_length == -2)? ERR36 :
+                        (fixed_length == -4)? ERR70: ERR25;
+        *ptrptr = ptr;
+        return FALSE;
+        }
+      else
+        {
+        if (fixed_length > cd->max_lookbehind)
+          cd->max_lookbehind = fixed_length;
+        PUT(reverse_count, 0, fixed_length);
+        }
+      }
+    }
+
+  /* Reached end of expression, either ')' or end of pattern. In the real
+  compile phase, go back through the alternative branches and reverse the chain
+  of offsets, with the field in the BRA item now becoming an offset to the
+  first alternative. If there are no alternatives, it points to the end of the
+  group. The length in the terminating ket is always the length of the whole
+  bracketed item. Return leaving the pointer at the terminating char. */
+
+  if (*ptr != CHAR_VERTICAL_LINE)
+    {
+    if (lengthptr == NULL)
+      {
+      int branch_length = (int)(code - last_branch);
+      do
+        {
+        int prev_length = GET(last_branch, 1);
+        PUT(last_branch, 1, branch_length);
+        branch_length = prev_length;
+        last_branch -= branch_length;
+        }
+      while (branch_length > 0);
+      }
+
+    /* Fill in the ket */
+
+    *code = OP_KET;
+    PUT(code, 1, (int)(code - start_bracket));
+    code += 1 + LINK_SIZE;
+
+    /* If it was a capturing subpattern, check to see if it contained any
+    recursive back references. If so, we must wrap it in atomic brackets.
+    In any event, remove the block from the chain. */
+
+    if (capnumber > 0)
+      {
+      if (cd->open_caps->flag)
+        {
+        memmove(start_bracket + 1 + LINK_SIZE, start_bracket,
+          IN_UCHARS(code - start_bracket));
+        *start_bracket = OP_ONCE;
+        code += 1 + LINK_SIZE;
+        PUT(start_bracket, 1, (int)(code - start_bracket));
+        *code = OP_KET;
+        PUT(code, 1, (int)(code - start_bracket));
+        code += 1 + LINK_SIZE;
+        length += 2 + 2*LINK_SIZE;
+        }
+      cd->open_caps = cd->open_caps->next;
+      }
+
+    /* Retain the highest bracket number, in case resetting was used. */
+
+    cd->bracount = max_bracount;
+
+    /* Set values to pass back */
+
+    *codeptr = code;
+    *ptrptr = ptr;
+    *firstcharptr = firstchar;
+    *reqcharptr = reqchar;
+    if (lengthptr != NULL)
+      {
+      if (OFLOW_MAX - *lengthptr < length)
+        {
+        *errorcodeptr = ERR20;
+        return FALSE;
+        }
+      *lengthptr += length;
+      }
+    return TRUE;
+    }
+
+  /* Another branch follows. In the pre-compile phase, we can move the code
+  pointer back to where it was for the start of the first branch. (That is,
+  pretend that each branch is the only one.)
+
+  In the real compile phase, insert an ALT node. Its length field points back
+  to the previous branch while the bracket remains open. At the end the chain
+  is reversed. It's done like this so that the start of the bracket has a
+  zero offset until it is closed, making it possible to detect recursion. */
+
+  if (lengthptr != NULL)
+    {
+    code = *codeptr + 1 + LINK_SIZE + skipbytes;
+    length += 1 + LINK_SIZE;
+    }
+  else
+    {
+    *code = OP_ALT;
+    PUT(code, 1, (int)(code - last_branch));
+    bc.current_branch = last_branch = code;
+    code += 1 + LINK_SIZE;
+    }
+
+  ptr++;
+  }
+/* Control never reaches here */
+}
+
+
+
+
+/*************************************************
+*          Check for anchored expression         *
+*************************************************/
+
+/* Try to find out if this is an anchored regular expression. Consider each
+alternative branch. If they all start with OP_SOD or OP_CIRC, or with a bracket
+all of whose alternatives start with OP_SOD or OP_CIRC (recurse ad lib), then
+it's anchored. However, if this is a multiline pattern, then only OP_SOD will
+be found, because ^ generates OP_CIRCM in that mode.
+
+We can also consider a regex to be anchored if OP_SOM starts all its branches.
+This is the code for \G, which means "match at start of match position, taking
+into account the match offset".
+
+A branch is also implicitly anchored if it starts with .* and DOTALL is set,
+because that will try the rest of the pattern at all possible matching points,
+so there is no point trying again.... er ....
+
+.... except when the .* appears inside capturing parentheses, and there is a
+subsequent back reference to those parentheses. We haven't enough information
+to catch that case precisely.
+
+At first, the best we could do was to detect when .* was in capturing brackets
+and the highest back reference was greater than or equal to that level.
+However, by keeping a bitmap of the first 31 back references, we can catch some
+of the more common cases more precisely.
+
+Arguments:
+  code           points to start of expression (the bracket)
+  bracket_map    a bitmap of which brackets we are inside while testing; this
+                  handles up to substring 31; after that we just have to take
+                  the less precise approach
+  backref_map    the back reference bitmap
+
+Returns:     TRUE or FALSE
+*/
+
+static BOOL
+is_anchored(register const pcre_uchar *code, unsigned int bracket_map,
+  unsigned int backref_map)
+{
+do {
+   const pcre_uchar *scode = first_significant_code(
+     code + PRIV(OP_lengths)[*code], FALSE);
+   register int op = *scode;
+
+   /* Non-capturing brackets */
+
+   if (op == OP_BRA  || op == OP_BRAPOS ||
+       op == OP_SBRA || op == OP_SBRAPOS)
+     {
+     if (!is_anchored(scode, bracket_map, backref_map)) return FALSE;
+     }
+
+   /* Capturing brackets */
+
+   else if (op == OP_CBRA  || op == OP_CBRAPOS ||
+            op == OP_SCBRA || op == OP_SCBRAPOS)
+     {
+     int n = GET2(scode, 1+LINK_SIZE);
+     int new_map = bracket_map | ((n < 32)? (1 << n) : 1);
+     if (!is_anchored(scode, new_map, backref_map)) return FALSE;
+     }
+
+   /* Other brackets */
+
+   else if (op == OP_ASSERT || op == OP_ONCE || op == OP_ONCE_NC ||
+            op == OP_COND)
+     {
+     if (!is_anchored(scode, bracket_map, backref_map)) return FALSE;
+     }
+
+   /* .* is not anchored unless DOTALL is set (which generates OP_ALLANY) and
+   it isn't in brackets that are or may be referenced. */
+
+   else if ((op == OP_TYPESTAR || op == OP_TYPEMINSTAR ||
+             op == OP_TYPEPOSSTAR))
+     {
+     if (scode[1] != OP_ALLANY || (bracket_map & backref_map) != 0)
+       return FALSE;
+     }
+
+   /* Check for explicit anchoring */
+
+   else if (op != OP_SOD && op != OP_SOM && op != OP_CIRC) return FALSE;
+   code += GET(code, 1);
+   }
+while (*code == OP_ALT);   /* Loop for each alternative */
+return TRUE;
+}
+
+
+
+/*************************************************
+*         Check for starting with ^ or .*        *
+*************************************************/
+
+/* This is called to find out if every branch starts with ^ or .* so that
+"first char" processing can be done to speed things up in multiline
+matching and for non-DOTALL patterns that start with .* (which must start at
+the beginning or after \n). As in the case of is_anchored() (see above), we
+have to take account of back references to capturing brackets that contain .*
+because in that case we can't make the assumption.
+
+Arguments:
+  code           points to start of expression (the bracket)
+  bracket_map    a bitmap of which brackets we are inside while testing; this
+                  handles up to substring 31; after that we just have to take
+                  the less precise approach
+  backref_map    the back reference bitmap
+
+Returns:         TRUE or FALSE
+*/
+
+static BOOL
+is_startline(const pcre_uchar *code, unsigned int bracket_map,
+  unsigned int backref_map)
+{
+do {
+   const pcre_uchar *scode = first_significant_code(
+     code + PRIV(OP_lengths)[*code], FALSE);
+   register int op = *scode;
+
+   /* If we are at the start of a conditional assertion group, *both* the
+   conditional assertion *and* what follows the condition must satisfy the test
+   for start of line. Other kinds of condition fail. Note that there may be an
+   auto-callout at the start of a condition. */
+
+   if (op == OP_COND)
+     {
+     scode += 1 + LINK_SIZE;
+     if (*scode == OP_CALLOUT) scode += PRIV(OP_lengths)[OP_CALLOUT];
+     switch (*scode)
+       {
+       case OP_CREF:
+       case OP_NCREF:
+       case OP_RREF:
+       case OP_NRREF:
+       case OP_DEF:
+       return FALSE;
+
+       default:     /* Assertion */
+       if (!is_startline(scode, bracket_map, backref_map)) return FALSE;
+       do scode += GET(scode, 1); while (*scode == OP_ALT);
+       scode += 1 + LINK_SIZE;
+       break;
+       }
+     scode = first_significant_code(scode, FALSE);
+     op = *scode;
+     }
+
+   /* Non-capturing brackets */
+
+   if (op == OP_BRA  || op == OP_BRAPOS ||
+       op == OP_SBRA || op == OP_SBRAPOS)
+     {
+     if (!is_startline(scode, bracket_map, backref_map)) return FALSE;
+     }
+
+   /* Capturing brackets */
+
+   else if (op == OP_CBRA  || op == OP_CBRAPOS ||
+            op == OP_SCBRA || op == OP_SCBRAPOS)
+     {
+     int n = GET2(scode, 1+LINK_SIZE);
+     int new_map = bracket_map | ((n < 32)? (1 << n) : 1);
+     if (!is_startline(scode, new_map, backref_map)) return FALSE;
+     }
+
+   /* Other brackets */
+
+   else if (op == OP_ASSERT || op == OP_ONCE || op == OP_ONCE_NC)
+     {
+     if (!is_startline(scode, bracket_map, backref_map)) return FALSE;
+     }
+
+   /* .* means "start at start or after \n" if it isn't in brackets that
+   may be referenced. */
+
+   else if (op == OP_TYPESTAR || op == OP_TYPEMINSTAR || op == OP_TYPEPOSSTAR)
+     {
+     if (scode[1] != OP_ANY || (bracket_map & backref_map) != 0) return FALSE;
+     }
+
+   /* Check for explicit circumflex */
+
+   else if (op != OP_CIRC && op != OP_CIRCM) return FALSE;
+
+   /* Move on to the next alternative */
+
+   code += GET(code, 1);
+   }
+while (*code == OP_ALT);  /* Loop for each alternative */
+return TRUE;
+}
+
+
+
+/*************************************************
+*       Check for asserted fixed first char      *
+*************************************************/
+
+/* During compilation, the "first char" settings from forward assertions are
+discarded, because they can cause conflicts with actual literals that follow.
+However, if we end up without a first char setting for an unanchored pattern,
+it is worth scanning the regex to see if there is an initial asserted first
+char. If all branches start with the same asserted char, or with a bracket all
+of whose alternatives start with the same asserted char (recurse ad lib), then
+we return that char, otherwise -1.
+
+Arguments:
+  code       points to start of expression (the bracket)
+  inassert   TRUE if in an assertion
+
+Returns:     -1 or the fixed first char
+*/
+
+static int
+find_firstassertedchar(const pcre_uchar *code, BOOL inassert)
+{
+register int c = -1;
+do {
+   int d;
+   int xl = (*code == OP_CBRA || *code == OP_SCBRA ||
+             *code == OP_CBRAPOS || *code == OP_SCBRAPOS)? IMM2_SIZE:0;
+   const pcre_uchar *scode = first_significant_code(code + 1+LINK_SIZE + xl,
+     TRUE);
+   register int op = *scode;
+
+   switch(op)
+     {
+     default:
+     return -1;
+
+     case OP_BRA:
+     case OP_BRAPOS:
+     case OP_CBRA:
+     case OP_SCBRA:
+     case OP_CBRAPOS:
+     case OP_SCBRAPOS:
+     case OP_ASSERT:
+     case OP_ONCE:
+     case OP_ONCE_NC:
+     case OP_COND:
+     if ((d = find_firstassertedchar(scode, op == OP_ASSERT)) < 0)
+       return -1;
+     if (c < 0) c = d; else if (c != d) return -1;
+     break;
+
+     case OP_EXACT:
+     scode += IMM2_SIZE;
+     /* Fall through */
+
+     case OP_CHAR:
+     case OP_PLUS:
+     case OP_MINPLUS:
+     case OP_POSPLUS:
+     if (!inassert) return -1;
+     if (c < 0) c = scode[1];
+       else if (c != scode[1]) return -1;
+     break;
+
+     case OP_EXACTI:
+     scode += IMM2_SIZE;
+     /* Fall through */
+
+     case OP_CHARI:
+     case OP_PLUSI:
+     case OP_MINPLUSI:
+     case OP_POSPLUSI:
+     if (!inassert) return -1;
+     if (c < 0) c = scode[1] | REQ_CASELESS;
+       else if (c != scode[1]) return -1;
+     break;
+     }
+
+   code += GET(code, 1);
+   }
+while (*code == OP_ALT);
+return c;
+}
+
+
+
+/*************************************************
+*        Compile a Regular Expression            *
+*************************************************/
+
+/* This function takes a string and returns a pointer to a block of store
+holding a compiled version of the expression. The original API for this
+function had no error code return variable; it is retained for backwards
+compatibility. The new function is given a new name.
+
+Arguments:
+  pattern       the regular expression
+  options       various option bits
+  errorcodeptr  pointer to error code variable (pcre_compile2() only)
+                  can be NULL if you don't want a code value
+  errorptr      pointer to pointer to error text
+  erroroffset   ptr offset in pattern where error was detected
+  tables        pointer to character tables or NULL
+
+Returns:        pointer to compiled data block, or NULL on error,
+                with errorptr and erroroffset set
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN pcre * PCRE_CALL_CONVENTION
+pcre_compile(const char *pattern, int options, const char **errorptr,
+  int *erroroffset, const unsigned char *tables)
+#else
+PCRE_EXP_DEFN pcre16 * PCRE_CALL_CONVENTION
+pcre16_compile(PCRE_SPTR16 pattern, int options, const char **errorptr,
+  int *erroroffset, const unsigned char *tables)
+#endif
+{
+#ifdef COMPILE_PCRE8
+return pcre_compile2(pattern, options, NULL, errorptr, erroroffset, tables);
+#else
+return pcre16_compile2(pattern, options, NULL, errorptr, erroroffset, tables);
+#endif
+}
+
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN pcre * PCRE_CALL_CONVENTION
+pcre_compile2(const char *pattern, int options, int *errorcodeptr,
+  const char **errorptr, int *erroroffset, const unsigned char *tables)
+#else
+PCRE_EXP_DEFN pcre16 * PCRE_CALL_CONVENTION
+pcre16_compile2(PCRE_SPTR16 pattern, int options, int *errorcodeptr,
+  const char **errorptr, int *erroroffset, const unsigned char *tables)
+#endif
+{
+REAL_PCRE *re;
+int length = 1;  /* For final END opcode */
+pcre_int32 firstchar, reqchar;
+int newline;
+int errorcode = 0;
+int skipatstart = 0;
+BOOL utf;
+size_t size;
+pcre_uchar *code;
+const pcre_uchar *codestart;
+const pcre_uchar *ptr;
+compile_data compile_block;
+compile_data *cd = &compile_block;
+
+/* This space is used for "compiling" into during the first phase, when we are
+computing the amount of memory that is needed. Compiled items are thrown away
+as soon as possible, so that a fairly large buffer should be sufficient for
+this purpose. The same space is used in the second phase for remembering where
+to fill in forward references to subpatterns. That may overflow, in which case
+new memory is obtained from malloc(). */
+
+pcre_uchar cworkspace[COMPILE_WORK_SIZE];
+
+/* Set this early so that early errors get offset 0. */
+
+ptr = (const pcre_uchar *)pattern;
+
+/* We can't pass back an error message if errorptr is NULL; I guess the best we
+can do is just return NULL, but we can set a code value if there is a code
+pointer. */
+
+if (errorptr == NULL)
+  {
+  if (errorcodeptr != NULL) *errorcodeptr = 99;
+  return NULL;
+  }
+
+*errorptr = NULL;
+if (errorcodeptr != NULL) *errorcodeptr = ERR0;
+
+/* However, we can give a message for this error */
+
+if (erroroffset == NULL)
+  {
+  errorcode = ERR16;
+  goto PCRE_EARLY_ERROR_RETURN2;
+  }
+
+*erroroffset = 0;
+
+/* Set up pointers to the individual character tables */
+
+if (tables == NULL) tables = PRIV(default_tables);
+cd->lcc = tables + lcc_offset;
+cd->fcc = tables + fcc_offset;
+cd->cbits = tables + cbits_offset;
+cd->ctypes = tables + ctypes_offset;
+
+/* Check that all undefined public option bits are zero */
+
+if ((options & ~PUBLIC_COMPILE_OPTIONS) != 0)
+  {
+  errorcode = ERR17;
+  goto PCRE_EARLY_ERROR_RETURN;
+  }
+
+/* Check for global one-time settings at the start of the pattern, and remember
+the offset for later. */
+
+while (ptr[skipatstart] == CHAR_LEFT_PARENTHESIS &&
+       ptr[skipatstart+1] == CHAR_ASTERISK)
+  {
+  int newnl = 0;
+  int newbsr = 0;
+
+#ifdef COMPILE_PCRE8
+  if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_UTF_RIGHTPAR, 5) == 0)
+    { skipatstart += 7; options |= PCRE_UTF8; continue; }
+#endif
+#ifdef COMPILE_PCRE16
+  if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_UTF_RIGHTPAR, 6) == 0)
+    { skipatstart += 8; options |= PCRE_UTF16; continue; }
+#endif
+  else if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_UCP_RIGHTPAR, 4) == 0)
+    { skipatstart += 6; options |= PCRE_UCP; continue; }
+  else if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_NO_START_OPT_RIGHTPAR, 13) == 0)
+    { skipatstart += 15; options |= PCRE_NO_START_OPTIMIZE; continue; }
+
+  if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_CR_RIGHTPAR, 3) == 0)
+    { skipatstart += 5; newnl = PCRE_NEWLINE_CR; }
+  else if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_LF_RIGHTPAR, 3)  == 0)
+    { skipatstart += 5; newnl = PCRE_NEWLINE_LF; }
+  else if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_CRLF_RIGHTPAR, 5)  == 0)
+    { skipatstart += 7; newnl = PCRE_NEWLINE_CR + PCRE_NEWLINE_LF; }
+  else if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_ANY_RIGHTPAR, 4) == 0)
+    { skipatstart += 6; newnl = PCRE_NEWLINE_ANY; }
+  else if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_ANYCRLF_RIGHTPAR, 8) == 0)
+    { skipatstart += 10; newnl = PCRE_NEWLINE_ANYCRLF; }
+
+  else if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_BSR_ANYCRLF_RIGHTPAR, 12) == 0)
+    { skipatstart += 14; newbsr = PCRE_BSR_ANYCRLF; }
+  else if (STRNCMP_UC_C8(ptr+skipatstart+2, STRING_BSR_UNICODE_RIGHTPAR, 12) == 0)
+    { skipatstart += 14; newbsr = PCRE_BSR_UNICODE; }
+
+  if (newnl != 0)
+    options = (options & ~PCRE_NEWLINE_BITS) | newnl;
+  else if (newbsr != 0)
+    options = (options & ~(PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)) | newbsr;
+  else break;
+  }
+
+/* PCRE_UTF16 has the same value as PCRE_UTF8. */
+utf = (options & PCRE_UTF8) != 0;
+
+/* Can't support UTF unless PCRE has been compiled to include the code. The
+return of an error code from PRIV(valid_utf)() is a new feature, introduced in
+release 8.13. It is passed back from pcre_[dfa_]exec(), but at the moment is
+not used here. */
+
+#ifdef SUPPORT_UTF
+if (utf && (options & PCRE_NO_UTF8_CHECK) == 0 &&
+     (errorcode = PRIV(valid_utf)((PCRE_PUCHAR)pattern, -1, erroroffset)) != 0)
+  {
+#ifdef COMPILE_PCRE8
+  errorcode = ERR44;
+#else
+  errorcode = ERR74;
+#endif
+  goto PCRE_EARLY_ERROR_RETURN2;
+  }
+#else
+if (utf)
+  {
+  errorcode = ERR32;
+  goto PCRE_EARLY_ERROR_RETURN;
+  }
+#endif
+
+/* Can't support UCP unless PCRE has been compiled to include the code. */
+
+#ifndef SUPPORT_UCP
+if ((options & PCRE_UCP) != 0)
+  {
+  errorcode = ERR67;
+  goto PCRE_EARLY_ERROR_RETURN;
+  }
+#endif
+
+/* Check validity of \R options. */
+
+if ((options & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)) ==
+     (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE))
+  {
+  errorcode = ERR56;
+  goto PCRE_EARLY_ERROR_RETURN;
+  }
+
+/* Handle different types of newline. The three bits give seven cases. The
+current code allows for fixed one- or two-byte sequences, plus "any" and
+"anycrlf". */
+
+switch (options & PCRE_NEWLINE_BITS)
+  {
+  case 0: newline = NEWLINE; break;   /* Build-time default */
+  case PCRE_NEWLINE_CR: newline = CHAR_CR; break;
+  case PCRE_NEWLINE_LF: newline = CHAR_NL; break;
+  case PCRE_NEWLINE_CR+
+       PCRE_NEWLINE_LF: newline = (CHAR_CR << 8) | CHAR_NL; break;
+  case PCRE_NEWLINE_ANY: newline = -1; break;
+  case PCRE_NEWLINE_ANYCRLF: newline = -2; break;
+  default: errorcode = ERR56; goto PCRE_EARLY_ERROR_RETURN;
+  }
+
+if (newline == -2)
+  {
+  cd->nltype = NLTYPE_ANYCRLF;
+  }
+else if (newline < 0)
+  {
+  cd->nltype = NLTYPE_ANY;
+  }
+else
+  {
+  cd->nltype = NLTYPE_FIXED;
+  if (newline > 255)
+    {
+    cd->nllen = 2;
+    cd->nl[0] = (newline >> 8) & 255;
+    cd->nl[1] = newline & 255;
+    }
+  else
+    {
+    cd->nllen = 1;
+    cd->nl[0] = newline;
+    }
+  }
+
+/* Maximum back reference and backref bitmap. The bitmap records up to 31 back
+references to help in deciding whether (.*) can be treated as anchored or not.
+*/
+
+cd->top_backref = 0;
+cd->backref_map = 0;
+
+/* Reflect pattern for debugging output */
+
+DPRINTF(("------------------------------------------------------------------\n"));
+#ifdef PCRE_DEBUG
+print_puchar(stdout, (PCRE_PUCHAR)pattern);
+#endif
+DPRINTF(("\n"));
+
+/* Pretend to compile the pattern while actually just accumulating the length
+of memory required. This behaviour is triggered by passing a non-NULL final
+argument to compile_regex(). We pass a block of workspace (cworkspace) for it
+to compile parts of the pattern into; the compiled code is discarded when it is
+no longer needed, so hopefully this workspace will never overflow, though there
+is a test for its doing so. */
+
+cd->bracount = cd->final_bracount = 0;
+cd->names_found = 0;
+cd->name_entry_size = 0;
+cd->name_table = NULL;
+cd->start_code = cworkspace;
+cd->hwm = cworkspace;
+cd->start_workspace = cworkspace;
+cd->workspace_size = COMPILE_WORK_SIZE;
+cd->start_pattern = (const pcre_uchar *)pattern;
+cd->end_pattern = (const pcre_uchar *)(pattern + STRLEN_UC((const pcre_uchar *)pattern));
+cd->req_varyopt = 0;
+cd->assert_depth = 0;
+cd->max_lookbehind = 0;
+cd->external_options = options;
+cd->external_flags = 0;
+cd->open_caps = NULL;
+
+/* Now do the pre-compile. On error, errorcode will be set non-zero, so we
+don't need to look at the result of the function here. The initial options have
+been put into the cd block so that they can be changed if an option setting is
+found within the regex right at the beginning. Bringing initial option settings
+outside can help speed up starting point checks. */
+
+ptr += skipatstart;
+code = cworkspace;
+*code = OP_BRA;
+(void)compile_regex(cd->external_options, &code, &ptr, &errorcode, FALSE,
+  FALSE, 0, 0, &firstchar, &reqchar, NULL, cd, &length);
+if (errorcode != 0) goto PCRE_EARLY_ERROR_RETURN;
+
+DPRINTF(("end pre-compile: length=%d workspace=%d\n", length,
+  (int)(cd->hwm - cworkspace)));
+
+if (length > MAX_PATTERN_SIZE)
+  {
+  errorcode = ERR20;
+  goto PCRE_EARLY_ERROR_RETURN;
+  }
+
+/* Compute the size of data block needed and get it, either from malloc or
+externally provided function. Integer overflow should no longer be possible
+because nowadays we limit the maximum value of cd->names_found and
+cd->name_entry_size. */
+
+size = sizeof(REAL_PCRE) + (length + cd->names_found * cd->name_entry_size) * sizeof(pcre_uchar);
+re = (REAL_PCRE *)(PUBL(malloc))(size);
+
+if (re == NULL)
+  {
+  errorcode = ERR21;
+  goto PCRE_EARLY_ERROR_RETURN;
+  }
+
+/* Put in the magic number, and save the sizes, initial options, internal
+flags, and character table pointer. NULL is used for the default character
+tables. The nullpad field is at the end; it's there to help in the case when a
+regex compiled on a system with 4-byte pointers is run on another with 8-byte
+pointers. */
+
+re->magic_number = MAGIC_NUMBER;
+re->size = (int)size;
+re->options = cd->external_options;
+re->flags = cd->external_flags;
+re->first_char = 0;
+re->req_char = 0;
+re->name_table_offset = sizeof(REAL_PCRE) / sizeof(pcre_uchar);
+re->name_entry_size = cd->name_entry_size;
+re->name_count = cd->names_found;
+re->ref_count = 0;
+re->tables = (tables == PRIV(default_tables))? NULL : tables;
+re->nullpad = NULL;
+
+/* The starting points of the name/number translation table and of the code are
+passed around in the compile data block. The start/end pattern and initial
+options are already set from the pre-compile phase, as is the name_entry_size
+field. Reset the bracket count and the names_found field. Also reset the hwm
+field; this time it's used for remembering forward references to subpatterns.
+*/
+
+cd->final_bracount = cd->bracount;  /* Save for checking forward references */
+cd->assert_depth = 0;
+cd->bracount = 0;
+cd->max_lookbehind = 0;
+cd->names_found = 0;
+cd->name_table = (pcre_uchar *)re + re->name_table_offset;
+codestart = cd->name_table + re->name_entry_size * re->name_count;
+cd->start_code = codestart;
+cd->hwm = (pcre_uchar *)(cd->start_workspace);
+cd->req_varyopt = 0;
+cd->had_accept = FALSE;
+cd->check_lookbehind = FALSE;
+cd->open_caps = NULL;
+
+/* Set up a starting, non-extracting bracket, then compile the expression. On
+error, errorcode will be set non-zero, so we don't need to look at the result
+of the function here. */
+
+ptr = (const pcre_uchar *)pattern + skipatstart;
+code = (pcre_uchar *)codestart;
+*code = OP_BRA;
+(void)compile_regex(re->options, &code, &ptr, &errorcode, FALSE, FALSE, 0, 0,
+  &firstchar, &reqchar, NULL, cd, NULL);
+re->top_bracket = cd->bracount;
+re->top_backref = cd->top_backref;
+re->max_lookbehind = cd->max_lookbehind;
+re->flags = cd->external_flags | PCRE_MODE;
+
+if (cd->had_accept) reqchar = REQ_NONE;   /* Must disable after (*ACCEPT) */
+
+/* If not reached end of pattern on success, there's an excess bracket. */
+
+if (errorcode == 0 && *ptr != 0) errorcode = ERR22;
+
+/* Fill in the terminating state and check for disastrous overflow, but
+if debugging, leave the test till after things are printed out. */
+
+*code++ = OP_END;
+
+#ifndef PCRE_DEBUG
+if (code - codestart > length) errorcode = ERR23;
+#endif
+
+/* Fill in any forward references that are required. There may be repeated
+references; optimize for them, as searching a large regex takes time. */
+
+if (cd->hwm > cd->start_workspace)
+  {
+  int prev_recno = -1;
+  const pcre_uchar *groupptr = NULL;
+  while (errorcode == 0 && cd->hwm > cd->start_workspace)
+    {
+    int offset, recno;
+    cd->hwm -= LINK_SIZE;
+    offset = GET(cd->hwm, 0);
+    recno = GET(codestart, offset);
+    if (recno != prev_recno)
+      {
+      groupptr = PRIV(find_bracket)(codestart, utf, recno);
+      prev_recno = recno;
+      }
+    if (groupptr == NULL) errorcode = ERR53;
+      else PUT(((pcre_uchar *)codestart), offset, (int)(groupptr - codestart));
+    }
+  }
+
+/* If the workspace had to be expanded, free the new memory. */
+
+if (cd->workspace_size > COMPILE_WORK_SIZE)
+  (PUBL(free))((void *)cd->start_workspace);
+
+/* Give an error if there's back reference to a non-existent capturing
+subpattern. */
+
+if (errorcode == 0 && re->top_backref > re->top_bracket) errorcode = ERR15;
+
+/* If there were any lookbehind assertions that contained OP_RECURSE
+(recursions or subroutine calls), a flag is set for them to be checked here,
+because they may contain forward references. Actual recursions can't be fixed
+length, but subroutine calls can. It is done like this so that those without
+OP_RECURSE that are not fixed length get a diagnosic with a useful offset. The
+exceptional ones forgo this. We scan the pattern to check that they are fixed
+length, and set their lengths. */
+
+if (cd->check_lookbehind)
+  {
+  pcre_uchar *cc = (pcre_uchar *)codestart;
+
+  /* Loop, searching for OP_REVERSE items, and process those that do not have
+  their length set. (Actually, it will also re-process any that have a length
+  of zero, but that is a pathological case, and it does no harm.) When we find
+  one, we temporarily terminate the branch it is in while we scan it. */
+
+  for (cc = (pcre_uchar *)PRIV(find_bracket)(codestart, utf, -1);
+       cc != NULL;
+       cc = (pcre_uchar *)PRIV(find_bracket)(cc, utf, -1))
+    {
+    if (GET(cc, 1) == 0)
+      {
+      int fixed_length;
+      pcre_uchar *be = cc - 1 - LINK_SIZE + GET(cc, -LINK_SIZE);
+      int end_op = *be;
+      *be = OP_END;
+      fixed_length = find_fixedlength(cc, (re->options & PCRE_UTF8) != 0, TRUE,
+        cd);
+      *be = end_op;
+      DPRINTF(("fixed length = %d\n", fixed_length));
+      if (fixed_length < 0)
+        {
+        errorcode = (fixed_length == -2)? ERR36 :
+                    (fixed_length == -4)? ERR70 : ERR25;
+        break;
+        }
+      if (fixed_length > cd->max_lookbehind) cd->max_lookbehind = fixed_length;
+      PUT(cc, 1, fixed_length);
+      }
+    cc += 1 + LINK_SIZE;
+    }
+  }
+
+/* Failed to compile, or error while post-processing */
+
+if (errorcode != 0)
+  {
+  (PUBL(free))(re);
+  PCRE_EARLY_ERROR_RETURN:
+  *erroroffset = (int)(ptr - (const pcre_uchar *)pattern);
+  PCRE_EARLY_ERROR_RETURN2:
+  *errorptr = find_error_text(errorcode);
+  if (errorcodeptr != NULL) *errorcodeptr = errorcode;
+  return NULL;
+  }
+
+/* If the anchored option was not passed, set the flag if we can determine that
+the pattern is anchored by virtue of ^ characters or \A or anything else (such
+as starting with .* when DOTALL is set).
+
+Otherwise, if we know what the first byte has to be, save it, because that
+speeds up unanchored matches no end. If not, see if we can set the
+PCRE_STARTLINE flag. This is helpful for multiline matches when all branches
+start with ^. and also when all branches start with .* for non-DOTALL matches.
+*/
+
+if ((re->options & PCRE_ANCHORED) == 0)
+  {
+  if (is_anchored(codestart, 0, cd->backref_map))
+    re->options |= PCRE_ANCHORED;
+  else
+    {
+    if (firstchar < 0)
+      firstchar = find_firstassertedchar(codestart, FALSE);
+    if (firstchar >= 0)   /* Remove caseless flag for non-caseable chars */
+      {
+#ifdef COMPILE_PCRE8
+      re->first_char = firstchar & 0xff;
+#else
+#ifdef COMPILE_PCRE16
+      re->first_char = firstchar & 0xffff;
+#endif
+#endif
+      if ((firstchar & REQ_CASELESS) != 0)
+        {
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+        /* We ignore non-ASCII first chars in 8 bit mode. */
+        if (utf)
+          {
+          if (re->first_char < 128)
+            {
+            if (cd->fcc[re->first_char] != re->first_char)
+              re->flags |= PCRE_FCH_CASELESS;
+            }
+          else if (UCD_OTHERCASE(re->first_char) != re->first_char)
+            re->flags |= PCRE_FCH_CASELESS;
+          }
+        else
+#endif
+        if (MAX_255(re->first_char)
+            && cd->fcc[re->first_char] != re->first_char)
+          re->flags |= PCRE_FCH_CASELESS;
+        }
+
+      re->flags |= PCRE_FIRSTSET;
+      }
+    else if (is_startline(codestart, 0, cd->backref_map))
+      re->flags |= PCRE_STARTLINE;
+    }
+  }
+
+/* For an anchored pattern, we use the "required byte" only if it follows a
+variable length item in the regex. Remove the caseless flag for non-caseable
+bytes. */
+
+if (reqchar >= 0 &&
+     ((re->options & PCRE_ANCHORED) == 0 || (reqchar & REQ_VARY) != 0))
+  {
+#ifdef COMPILE_PCRE8
+  re->req_char = reqchar & 0xff;
+#else
+#ifdef COMPILE_PCRE16
+  re->req_char = reqchar & 0xffff;
+#endif
+#endif
+  if ((reqchar & REQ_CASELESS) != 0)
+    {
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+    /* We ignore non-ASCII first chars in 8 bit mode. */
+    if (utf)
+      {
+      if (re->req_char < 128)
+        {
+        if (cd->fcc[re->req_char] != re->req_char)
+          re->flags |= PCRE_RCH_CASELESS;
+        }
+      else if (UCD_OTHERCASE(re->req_char) != re->req_char)
+        re->flags |= PCRE_RCH_CASELESS;
+      }
+    else
+#endif
+    if (MAX_255(re->req_char) && cd->fcc[re->req_char] != re->req_char)
+      re->flags |= PCRE_RCH_CASELESS;
+    }
+
+  re->flags |= PCRE_REQCHSET;
+  }
+
+/* Print out the compiled data if debugging is enabled. This is never the
+case when building a production library. */
+
+#ifdef PCRE_DEBUG
+printf("Length = %d top_bracket = %d top_backref = %d\n",
+  length, re->top_bracket, re->top_backref);
+
+printf("Options=%08x\n", re->options);
+
+if ((re->flags & PCRE_FIRSTSET) != 0)
+  {
+  pcre_uchar ch = re->first_char;
+  const char *caseless =
+    ((re->flags & PCRE_FCH_CASELESS) == 0)? "" : " (caseless)";
+  if (PRINTABLE(ch)) printf("First char = %c%s\n", ch, caseless);
+    else printf("First char = \\x%02x%s\n", ch, caseless);
+  }
+
+if ((re->flags & PCRE_REQCHSET) != 0)
+  {
+  pcre_uchar ch = re->req_char;
+  const char *caseless =
+    ((re->flags & PCRE_RCH_CASELESS) == 0)? "" : " (caseless)";
+  if (PRINTABLE(ch)) printf("Req char = %c%s\n", ch, caseless);
+    else printf("Req char = \\x%02x%s\n", ch, caseless);
+  }
+
+#ifdef COMPILE_PCRE8
+pcre_printint((pcre *)re, stdout, TRUE);
+#else
+pcre16_printint((pcre *)re, stdout, TRUE);
+#endif
+
+/* This check is done here in the debugging case so that the code that
+was compiled can be seen. */
+
+if (code - codestart > length)
+  {
+  (PUBL(free))(re);
+  *errorptr = find_error_text(ERR23);
+  *erroroffset = ptr - (pcre_uchar *)pattern;
+  if (errorcodeptr != NULL) *errorcodeptr = ERR23;
+  return NULL;
+  }
+#endif   /* PCRE_DEBUG */
+
+#ifdef COMPILE_PCRE8
+return (pcre *)re;
+#else
+return (pcre16 *)re;
+#endif
+}
+
+/* End of pcre_compile.c */
diff --git a/8.31/pcre_config.c b/8.31/pcre_config.c
new file mode 100644
index 0000000..aa0ef86
--- /dev/null
+++ b/8.31/pcre_config.c
@@ -0,0 +1,170 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains the external function pcre_config(). */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/* Keep the original link size. */
+static int real_link_size = LINK_SIZE;
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+* Return info about what features are configured *
+*************************************************/
+
+/* This function has an extensible interface so that additional items can be
+added compatibly.
+
+Arguments:
+  what             what information is required
+  where            where to put the information
+
+Returns:           0 if data returned, negative on error
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_config(int what, void *where)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_config(int what, void *where)
+#endif
+{
+switch (what)
+  {
+  case PCRE_CONFIG_UTF8:
+#if defined COMPILE_PCRE16
+  *((int *)where) = 0;
+  return PCRE_ERROR_BADOPTION;
+#else
+#if defined SUPPORT_UTF
+  *((int *)where) = 1;
+#else
+  *((int *)where) = 0;
+#endif
+  break;
+#endif
+
+  case PCRE_CONFIG_UTF16:
+#if defined COMPILE_PCRE8
+  *((int *)where) = 0;
+  return PCRE_ERROR_BADOPTION;
+#else
+#if defined SUPPORT_UTF
+  *((int *)where) = 1;
+#else
+  *((int *)where) = 0;
+#endif
+  break;
+#endif
+
+  case PCRE_CONFIG_UNICODE_PROPERTIES:
+#ifdef SUPPORT_UCP
+  *((int *)where) = 1;
+#else
+  *((int *)where) = 0;
+#endif
+  break;
+
+  case PCRE_CONFIG_JIT:
+#ifdef SUPPORT_JIT
+  *((int *)where) = 1;
+#else
+  *((int *)where) = 0;
+#endif
+  break;
+
+  case PCRE_CONFIG_JITTARGET:
+#ifdef SUPPORT_JIT
+  *((const char **)where) = PRIV(jit_get_target)();
+#else
+  *((const char **)where) = NULL;
+#endif
+  break;
+
+  case PCRE_CONFIG_NEWLINE:
+  *((int *)where) = NEWLINE;
+  break;
+
+  case PCRE_CONFIG_BSR:
+#ifdef BSR_ANYCRLF
+  *((int *)where) = 1;
+#else
+  *((int *)where) = 0;
+#endif
+  break;
+
+  case PCRE_CONFIG_LINK_SIZE:
+  *((int *)where) = real_link_size;
+  break;
+
+  case PCRE_CONFIG_POSIX_MALLOC_THRESHOLD:
+  *((int *)where) = POSIX_MALLOC_THRESHOLD;
+  break;
+
+  case PCRE_CONFIG_MATCH_LIMIT:
+  *((unsigned long int *)where) = MATCH_LIMIT;
+  break;
+
+  case PCRE_CONFIG_MATCH_LIMIT_RECURSION:
+  *((unsigned long int *)where) = MATCH_LIMIT_RECURSION;
+  break;
+
+  case PCRE_CONFIG_STACKRECURSE:
+#ifdef NO_RECURSE
+  *((int *)where) = 0;
+#else
+  *((int *)where) = 1;
+#endif
+  break;
+
+  default: return PCRE_ERROR_BADOPTION;
+  }
+
+return 0;
+}
+
+/* End of pcre_config.c */
diff --git a/8.31/pcre_dfa_exec.c b/8.31/pcre_dfa_exec.c
new file mode 100644
index 0000000..df38d10
--- /dev/null
+++ b/8.31/pcre_dfa_exec.c
@@ -0,0 +1,3613 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language (but see
+below for why this module is different).
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+/* This module contains the external function pcre_dfa_exec(), which is an
+alternative matching function that uses a sort of DFA algorithm (not a true
+FSM). This is NOT Perl-compatible, but it has advantages in certain
+applications. */
+
+
+/* NOTE ABOUT PERFORMANCE: A user of this function sent some code that improved
+the performance of his patterns greatly. I could not use it as it stood, as it
+was not thread safe, and made assumptions about pattern sizes. Also, it caused
+test 7 to loop, and test 9 to crash with a segfault.
+
+The issue is the check for duplicate states, which is done by a simple linear
+search up the state list. (Grep for "duplicate" below to find the code.) For
+many patterns, there will never be many states active at one time, so a simple
+linear search is fine. In patterns that have many active states, it might be a
+bottleneck. The suggested code used an indexing scheme to remember which states
+had previously been used for each character, and avoided the linear search when
+it knew there was no chance of a duplicate. This was implemented when adding
+states to the state lists.
+
+I wrote some thread-safe, not-limited code to try something similar at the time
+of checking for duplicates (instead of when adding states), using index vectors
+on the stack. It did give a 13% improvement with one specially constructed
+pattern for certain subject strings, but on other strings and on many of the
+simpler patterns in the test suite it did worse. The major problem, I think,
+was the extra time to initialize the index. This had to be done for each call
+of internal_dfa_exec(). (The supplied patch used a static vector, initialized
+only once - I suspect this was the cause of the problems with the tests.)
+
+Overall, I concluded that the gains in some cases did not outweigh the losses
+in others, so I abandoned this code. */
+
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#define NLBLOCK md             /* Block containing newline information */
+#define PSSTART start_subject  /* Field containing processed string start */
+#define PSEND   end_subject    /* Field containing processed string end */
+
+#include "pcre_internal.h"
+
+
+/* For use to indent debugging output */
+
+#define SP "                   "
+
+
+/*************************************************
+*      Code parameters and static tables         *
+*************************************************/
+
+/* These are offsets that are used to turn the OP_TYPESTAR and friends opcodes
+into others, under special conditions. A gap of 20 between the blocks should be
+enough. The resulting opcodes don't have to be less than 256 because they are
+never stored, so we push them well clear of the normal opcodes. */
+
+#define OP_PROP_EXTRA       300
+#define OP_EXTUNI_EXTRA     320
+#define OP_ANYNL_EXTRA      340
+#define OP_HSPACE_EXTRA     360
+#define OP_VSPACE_EXTRA     380
+
+
+/* This table identifies those opcodes that are followed immediately by a
+character that is to be tested in some way. This makes it possible to
+centralize the loading of these characters. In the case of Type * etc, the
+"character" is the opcode for \D, \d, \S, \s, \W, or \w, which will always be a
+small value. Non-zero values in the table are the offsets from the opcode where
+the character is to be found. ***NOTE*** If the start of this table is
+modified, the three tables that follow must also be modified. */
+
+static const pcre_uint8 coptable[] = {
+  0,                             /* End                                    */
+  0, 0, 0, 0, 0,                 /* \A, \G, \K, \B, \b                     */
+  0, 0, 0, 0, 0, 0,              /* \D, \d, \S, \s, \W, \w                 */
+  0, 0, 0,                       /* Any, AllAny, Anybyte                   */
+  0, 0,                          /* \P, \p                                 */
+  0, 0, 0, 0, 0,                 /* \R, \H, \h, \V, \v                     */
+  0,                             /* \X                                     */
+  0, 0, 0, 0, 0, 0,              /* \Z, \z, ^, ^M, $, $M                   */
+  1,                             /* Char                                   */
+  1,                             /* Chari                                  */
+  1,                             /* not                                    */
+  1,                             /* noti                                   */
+  /* Positive single-char repeats                                          */
+  1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */
+  1+IMM2_SIZE, 1+IMM2_SIZE,      /* upto, minupto                          */
+  1+IMM2_SIZE,                   /* exact                                  */
+  1, 1, 1, 1+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */
+  1, 1, 1, 1, 1, 1,              /* *I, *?I, +I, +?I, ?I, ??I              */
+  1+IMM2_SIZE, 1+IMM2_SIZE,      /* upto I, minupto I                      */
+  1+IMM2_SIZE,                   /* exact I                                */
+  1, 1, 1, 1+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */
+  /* Negative single-char repeats - only for chars < 256                   */
+  1, 1, 1, 1, 1, 1,              /* NOT *, *?, +, +?, ?, ??                */
+  1+IMM2_SIZE, 1+IMM2_SIZE,      /* NOT upto, minupto                      */
+  1+IMM2_SIZE,                   /* NOT exact                              */
+  1, 1, 1, 1+IMM2_SIZE,          /* NOT *+, ++, ?+, upto+                  */
+  1, 1, 1, 1, 1, 1,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */
+  1+IMM2_SIZE, 1+IMM2_SIZE,      /* NOT upto I, minupto I                  */
+  1+IMM2_SIZE,                   /* NOT exact I                            */
+  1, 1, 1, 1+IMM2_SIZE,          /* NOT *+I, ++I, ?+I, upto+I              */
+  /* Positive type repeats                                                 */
+  1, 1, 1, 1, 1, 1,              /* Type *, *?, +, +?, ?, ??               */
+  1+IMM2_SIZE, 1+IMM2_SIZE,      /* Type upto, minupto                     */
+  1+IMM2_SIZE,                   /* Type exact                             */
+  1, 1, 1, 1+IMM2_SIZE,          /* Type *+, ++, ?+, upto+                 */
+  /* Character class & ref repeats                                         */
+  0, 0, 0, 0, 0, 0,              /* *, *?, +, +?, ?, ??                    */
+  0, 0,                          /* CRRANGE, CRMINRANGE                    */
+  0,                             /* CLASS                                  */
+  0,                             /* NCLASS                                 */
+  0,                             /* XCLASS - variable length               */
+  0,                             /* REF                                    */
+  0,                             /* REFI                                   */
+  0,                             /* RECURSE                                */
+  0,                             /* CALLOUT                                */
+  0,                             /* Alt                                    */
+  0,                             /* Ket                                    */
+  0,                             /* KetRmax                                */
+  0,                             /* KetRmin                                */
+  0,                             /* KetRpos                                */
+  0,                             /* Reverse                                */
+  0,                             /* Assert                                 */
+  0,                             /* Assert not                             */
+  0,                             /* Assert behind                          */
+  0,                             /* Assert behind not                      */
+  0, 0,                          /* ONCE, ONCE_NC                          */
+  0, 0, 0, 0, 0,                 /* BRA, BRAPOS, CBRA, CBRAPOS, COND       */
+  0, 0, 0, 0, 0,                 /* SBRA, SBRAPOS, SCBRA, SCBRAPOS, SCOND  */
+  0, 0,                          /* CREF, NCREF                            */
+  0, 0,                          /* RREF, NRREF                            */
+  0,                             /* DEF                                    */
+  0, 0, 0,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */
+  0, 0, 0,                       /* MARK, PRUNE, PRUNE_ARG                 */
+  0, 0, 0, 0,                    /* SKIP, SKIP_ARG, THEN, THEN_ARG         */
+  0, 0, 0, 0,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */
+  0, 0                           /* CLOSE, SKIPZERO  */
+};
+
+/* This table identifies those opcodes that inspect a character. It is used to
+remember the fact that a character could have been inspected when the end of
+the subject is reached. ***NOTE*** If the start of this table is modified, the
+two tables that follow must also be modified. */
+
+static const pcre_uint8 poptable[] = {
+  0,                             /* End                                    */
+  0, 0, 0, 1, 1,                 /* \A, \G, \K, \B, \b                     */
+  1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */
+  1, 1, 1,                       /* Any, AllAny, Anybyte                   */
+  1, 1,                          /* \P, \p                                 */
+  1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */
+  1,                             /* \X                                     */
+  0, 0, 0, 0, 0, 0,              /* \Z, \z, ^, ^M, $, $M                   */
+  1,                             /* Char                                   */
+  1,                             /* Chari                                  */
+  1,                             /* not                                    */
+  1,                             /* noti                                   */
+  /* Positive single-char repeats                                          */
+  1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */
+  1, 1, 1,                       /* upto, minupto, exact                   */
+  1, 1, 1, 1,                    /* *+, ++, ?+, upto+                      */
+  1, 1, 1, 1, 1, 1,              /* *I, *?I, +I, +?I, ?I, ??I              */
+  1, 1, 1,                       /* upto I, minupto I, exact I             */
+  1, 1, 1, 1,                    /* *+I, ++I, ?+I, upto+I                  */
+  /* Negative single-char repeats - only for chars < 256                   */
+  1, 1, 1, 1, 1, 1,              /* NOT *, *?, +, +?, ?, ??                */
+  1, 1, 1,                       /* NOT upto, minupto, exact               */
+  1, 1, 1, 1,                    /* NOT *+, ++, ?+, upto+                  */
+  1, 1, 1, 1, 1, 1,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */
+  1, 1, 1,                       /* NOT upto I, minupto I, exact I         */
+  1, 1, 1, 1,                    /* NOT *+I, ++I, ?+I, upto+I              */
+  /* Positive type repeats                                                 */
+  1, 1, 1, 1, 1, 1,              /* Type *, *?, +, +?, ?, ??               */
+  1, 1, 1,                       /* Type upto, minupto, exact              */
+  1, 1, 1, 1,                    /* Type *+, ++, ?+, upto+                 */
+  /* Character class & ref repeats                                         */
+  1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */
+  1, 1,                          /* CRRANGE, CRMINRANGE                    */
+  1,                             /* CLASS                                  */
+  1,                             /* NCLASS                                 */
+  1,                             /* XCLASS - variable length               */
+  0,                             /* REF                                    */
+  0,                             /* REFI                                   */
+  0,                             /* RECURSE                                */
+  0,                             /* CALLOUT                                */
+  0,                             /* Alt                                    */
+  0,                             /* Ket                                    */
+  0,                             /* KetRmax                                */
+  0,                             /* KetRmin                                */
+  0,                             /* KetRpos                                */
+  0,                             /* Reverse                                */
+  0,                             /* Assert                                 */
+  0,                             /* Assert not                             */
+  0,                             /* Assert behind                          */
+  0,                             /* Assert behind not                      */
+  0, 0,                          /* ONCE, ONCE_NC                          */
+  0, 0, 0, 0, 0,                 /* BRA, BRAPOS, CBRA, CBRAPOS, COND       */
+  0, 0, 0, 0, 0,                 /* SBRA, SBRAPOS, SCBRA, SCBRAPOS, SCOND  */
+  0, 0,                          /* CREF, NCREF                            */
+  0, 0,                          /* RREF, NRREF                            */
+  0,                             /* DEF                                    */
+  0, 0, 0,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */
+  0, 0, 0,                       /* MARK, PRUNE, PRUNE_ARG                 */
+  0, 0, 0, 0,                    /* SKIP, SKIP_ARG, THEN, THEN_ARG         */
+  0, 0, 0, 0,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */
+  0, 0                           /* CLOSE, SKIPZERO                        */
+};
+
+/* These 2 tables allow for compact code for testing for \D, \d, \S, \s, \W,
+and \w */
+
+static const pcre_uint8 toptable1[] = {
+  0, 0, 0, 0, 0, 0,
+  ctype_digit, ctype_digit,
+  ctype_space, ctype_space,
+  ctype_word,  ctype_word,
+  0, 0                            /* OP_ANY, OP_ALLANY */
+};
+
+static const pcre_uint8 toptable2[] = {
+  0, 0, 0, 0, 0, 0,
+  ctype_digit, 0,
+  ctype_space, 0,
+  ctype_word,  0,
+  1, 1                            /* OP_ANY, OP_ALLANY */
+};
+
+
+/* Structure for holding data about a particular state, which is in effect the
+current data for an active path through the match tree. It must consist
+entirely of ints because the working vector we are passed, and which we put
+these structures in, is a vector of ints. */
+
+typedef struct stateblock {
+  int offset;                     /* Offset to opcode */
+  int count;                      /* Count for repeats */
+  int data;                       /* Some use extra data */
+} stateblock;
+
+#define INTS_PER_STATEBLOCK  (int)(sizeof(stateblock)/sizeof(int))
+
+
+#ifdef PCRE_DEBUG
+/*************************************************
+*             Print character string             *
+*************************************************/
+
+/* Character string printing function for debugging.
+
+Arguments:
+  p            points to string
+  length       number of bytes
+  f            where to print
+
+Returns:       nothing
+*/
+
+static void
+pchars(const pcre_uchar *p, int length, FILE *f)
+{
+int c;
+while (length-- > 0)
+  {
+  if (isprint(c = *(p++)))
+    fprintf(f, "%c", c);
+  else
+    fprintf(f, "\\x%02x", c);
+  }
+}
+#endif
+
+
+
+/*************************************************
+*    Execute a Regular Expression - DFA engine   *
+*************************************************/
+
+/* This internal function applies a compiled pattern to a subject string,
+starting at a given point, using a DFA engine. This function is called from the
+external one, possibly multiple times if the pattern is not anchored. The
+function calls itself recursively for some kinds of subpattern.
+
+Arguments:
+  md                the match_data block with fixed information
+  this_start_code   the opening bracket of this subexpression's code
+  current_subject   where we currently are in the subject string
+  start_offset      start offset in the subject string
+  offsets           vector to contain the matching string offsets
+  offsetcount       size of same
+  workspace         vector of workspace
+  wscount           size of same
+  rlevel            function call recursion level
+
+Returns:            > 0 => number of match offset pairs placed in offsets
+                    = 0 => offsets overflowed; longest matches are present
+                     -1 => failed to match
+                   < -1 => some kind of unexpected problem
+
+The following macros are used for adding states to the two state vectors (one
+for the current character, one for the following character). */
+
+#define ADD_ACTIVE(x,y) \
+  if (active_count++ < wscount) \
+    { \
+    next_active_state->offset = (x); \
+    next_active_state->count  = (y); \
+    next_active_state++; \
+    DPRINTF(("%.*sADD_ACTIVE(%d,%d)\n", rlevel*2-2, SP, (x), (y))); \
+    } \
+  else return PCRE_ERROR_DFA_WSSIZE
+
+#define ADD_ACTIVE_DATA(x,y,z) \
+  if (active_count++ < wscount) \
+    { \
+    next_active_state->offset = (x); \
+    next_active_state->count  = (y); \
+    next_active_state->data   = (z); \
+    next_active_state++; \
+    DPRINTF(("%.*sADD_ACTIVE_DATA(%d,%d,%d)\n", rlevel*2-2, SP, (x), (y), (z))); \
+    } \
+  else return PCRE_ERROR_DFA_WSSIZE
+
+#define ADD_NEW(x,y) \
+  if (new_count++ < wscount) \
+    { \
+    next_new_state->offset = (x); \
+    next_new_state->count  = (y); \
+    next_new_state++; \
+    DPRINTF(("%.*sADD_NEW(%d,%d)\n", rlevel*2-2, SP, (x), (y))); \
+    } \
+  else return PCRE_ERROR_DFA_WSSIZE
+
+#define ADD_NEW_DATA(x,y,z) \
+  if (new_count++ < wscount) \
+    { \
+    next_new_state->offset = (x); \
+    next_new_state->count  = (y); \
+    next_new_state->data   = (z); \
+    next_new_state++; \
+    DPRINTF(("%.*sADD_NEW_DATA(%d,%d,%d) line %d\n", rlevel*2-2, SP, \
+      (x), (y), (z), __LINE__)); \
+    } \
+  else return PCRE_ERROR_DFA_WSSIZE
+
+/* And now, here is the code */
+
+static int
+internal_dfa_exec(
+  dfa_match_data *md,
+  const pcre_uchar *this_start_code,
+  const pcre_uchar *current_subject,
+  int start_offset,
+  int *offsets,
+  int offsetcount,
+  int *workspace,
+  int wscount,
+  int  rlevel)
+{
+stateblock *active_states, *new_states, *temp_states;
+stateblock *next_active_state, *next_new_state;
+
+const pcre_uint8 *ctypes, *lcc, *fcc;
+const pcre_uchar *ptr;
+const pcre_uchar *end_code, *first_op;
+
+dfa_recursion_info new_recursive;
+
+int active_count, new_count, match_count;
+
+/* Some fields in the md block are frequently referenced, so we load them into
+independent variables in the hope that this will perform better. */
+
+const pcre_uchar *start_subject = md->start_subject;
+const pcre_uchar *end_subject = md->end_subject;
+const pcre_uchar *start_code = md->start_code;
+
+#ifdef SUPPORT_UTF
+BOOL utf = (md->poptions & PCRE_UTF8) != 0;
+#else
+BOOL utf = FALSE;
+#endif
+
+BOOL reset_could_continue = FALSE;
+
+rlevel++;
+offsetcount &= (-2);
+
+wscount -= 2;
+wscount = (wscount - (wscount % (INTS_PER_STATEBLOCK * 2))) /
+          (2 * INTS_PER_STATEBLOCK);
+
+DPRINTF(("\n%.*s---------------------\n"
+  "%.*sCall to internal_dfa_exec f=%d\n",
+  rlevel*2-2, SP, rlevel*2-2, SP, rlevel));
+
+ctypes = md->tables + ctypes_offset;
+lcc = md->tables + lcc_offset;
+fcc = md->tables + fcc_offset;
+
+match_count = PCRE_ERROR_NOMATCH;   /* A negative number */
+
+active_states = (stateblock *)(workspace + 2);
+next_new_state = new_states = active_states + wscount;
+new_count = 0;
+
+first_op = this_start_code + 1 + LINK_SIZE +
+  ((*this_start_code == OP_CBRA || *this_start_code == OP_SCBRA ||
+    *this_start_code == OP_CBRAPOS || *this_start_code == OP_SCBRAPOS)
+    ? IMM2_SIZE:0);
+
+/* The first thing in any (sub) pattern is a bracket of some sort. Push all
+the alternative states onto the list, and find out where the end is. This
+makes is possible to use this function recursively, when we want to stop at a
+matching internal ket rather than at the end.
+
+If the first opcode in the first alternative is OP_REVERSE, we are dealing with
+a backward assertion. In that case, we have to find out the maximum amount to
+move back, and set up each alternative appropriately. */
+
+if (*first_op == OP_REVERSE)
+  {
+  int max_back = 0;
+  int gone_back;
+
+  end_code = this_start_code;
+  do
+    {
+    int back = GET(end_code, 2+LINK_SIZE);
+    if (back > max_back) max_back = back;
+    end_code += GET(end_code, 1);
+    }
+  while (*end_code == OP_ALT);
+
+  /* If we can't go back the amount required for the longest lookbehind
+  pattern, go back as far as we can; some alternatives may still be viable. */
+
+#ifdef SUPPORT_UTF
+  /* In character mode we have to step back character by character */
+
+  if (utf)
+    {
+    for (gone_back = 0; gone_back < max_back; gone_back++)
+      {
+      if (current_subject <= start_subject) break;
+      current_subject--;
+      ACROSSCHAR(current_subject > start_subject, *current_subject, current_subject--);
+      }
+    }
+  else
+#endif
+
+  /* In byte-mode we can do this quickly. */
+
+    {
+    gone_back = (current_subject - max_back < start_subject)?
+      (int)(current_subject - start_subject) : max_back;
+    current_subject -= gone_back;
+    }
+
+  /* Save the earliest consulted character */
+
+  if (current_subject < md->start_used_ptr)
+    md->start_used_ptr = current_subject;
+
+  /* Now we can process the individual branches. */
+
+  end_code = this_start_code;
+  do
+    {
+    int back = GET(end_code, 2+LINK_SIZE);
+    if (back <= gone_back)
+      {
+      int bstate = (int)(end_code - start_code + 2 + 2*LINK_SIZE);
+      ADD_NEW_DATA(-bstate, 0, gone_back - back);
+      }
+    end_code += GET(end_code, 1);
+    }
+  while (*end_code == OP_ALT);
+ }
+
+/* This is the code for a "normal" subpattern (not a backward assertion). The
+start of a whole pattern is always one of these. If we are at the top level,
+we may be asked to restart matching from the same point that we reached for a
+previous partial match. We still have to scan through the top-level branches to
+find the end state. */
+
+else
+  {
+  end_code = this_start_code;
+
+  /* Restarting */
+
+  if (rlevel == 1 && (md->moptions & PCRE_DFA_RESTART) != 0)
+    {
+    do { end_code += GET(end_code, 1); } while (*end_code == OP_ALT);
+    new_count = workspace[1];
+    if (!workspace[0])
+      memcpy(new_states, active_states, new_count * sizeof(stateblock));
+    }
+
+  /* Not restarting */
+
+  else
+    {
+    int length = 1 + LINK_SIZE +
+      ((*this_start_code == OP_CBRA || *this_start_code == OP_SCBRA ||
+        *this_start_code == OP_CBRAPOS || *this_start_code == OP_SCBRAPOS)
+        ? IMM2_SIZE:0);
+    do
+      {
+      ADD_NEW((int)(end_code - start_code + length), 0);
+      end_code += GET(end_code, 1);
+      length = 1 + LINK_SIZE;
+      }
+    while (*end_code == OP_ALT);
+    }
+  }
+
+workspace[0] = 0;    /* Bit indicating which vector is current */
+
+DPRINTF(("%.*sEnd state = %d\n", rlevel*2-2, SP, (int)(end_code - start_code)));
+
+/* Loop for scanning the subject */
+
+ptr = current_subject;
+for (;;)
+  {
+  int i, j;
+  int clen, dlen;
+  unsigned int c, d;
+  int forced_fail = 0;
+  BOOL partial_newline = FALSE;
+  BOOL could_continue = reset_could_continue;
+  reset_could_continue = FALSE;
+
+  /* Make the new state list into the active state list and empty the
+  new state list. */
+
+  temp_states = active_states;
+  active_states = new_states;
+  new_states = temp_states;
+  active_count = new_count;
+  new_count = 0;
+
+  workspace[0] ^= 1;              /* Remember for the restarting feature */
+  workspace[1] = active_count;
+
+#ifdef PCRE_DEBUG
+  printf("%.*sNext character: rest of subject = \"", rlevel*2-2, SP);
+  pchars(ptr, STRLEN_UC(ptr), stdout);
+  printf("\"\n");
+
+  printf("%.*sActive states: ", rlevel*2-2, SP);
+  for (i = 0; i < active_count; i++)
+    printf("%d/%d ", active_states[i].offset, active_states[i].count);
+  printf("\n");
+#endif
+
+  /* Set the pointers for adding new states */
+
+  next_active_state = active_states + active_count;
+  next_new_state = new_states;
+
+  /* Load the current character from the subject outside the loop, as many
+  different states may want to look at it, and we assume that at least one
+  will. */
+
+  if (ptr < end_subject)
+    {
+    clen = 1;        /* Number of data items in the character */
+#ifdef SUPPORT_UTF
+    if (utf) { GETCHARLEN(c, ptr, clen); } else
+#endif  /* SUPPORT_UTF */
+    c = *ptr;
+    }
+  else
+    {
+    clen = 0;        /* This indicates the end of the subject */
+    c = NOTACHAR;    /* This value should never actually be used */
+    }
+
+  /* Scan up the active states and act on each one. The result of an action
+  may be to add more states to the currently active list (e.g. on hitting a
+  parenthesis) or it may be to put states on the new list, for considering
+  when we move the character pointer on. */
+
+  for (i = 0; i < active_count; i++)
+    {
+    stateblock *current_state = active_states + i;
+    BOOL caseless = FALSE;
+    const pcre_uchar *code;
+    int state_offset = current_state->offset;
+    int count, codevalue, rrc;
+
+#ifdef PCRE_DEBUG
+    printf ("%.*sProcessing state %d c=", rlevel*2-2, SP, state_offset);
+    if (clen == 0) printf("EOL\n");
+      else if (c > 32 && c < 127) printf("'%c'\n", c);
+        else printf("0x%02x\n", c);
+#endif
+
+    /* A negative offset is a special case meaning "hold off going to this
+    (negated) state until the number of characters in the data field have
+    been skipped". If the could_continue flag was passed over from a previous
+    state, arrange for it to passed on. */
+
+    if (state_offset < 0)
+      {
+      if (current_state->data > 0)
+        {
+        DPRINTF(("%.*sSkipping this character\n", rlevel*2-2, SP));
+        ADD_NEW_DATA(state_offset, current_state->count,
+          current_state->data - 1);
+        if (could_continue) reset_could_continue = TRUE;
+        continue;
+        }
+      else
+        {
+        current_state->offset = state_offset = -state_offset;
+        }
+      }
+
+    /* Check for a duplicate state with the same count, and skip if found.
+    See the note at the head of this module about the possibility of improving
+    performance here. */
+
+    for (j = 0; j < i; j++)
+      {
+      if (active_states[j].offset == state_offset &&
+          active_states[j].count == current_state->count)
+        {
+        DPRINTF(("%.*sDuplicate state: skipped\n", rlevel*2-2, SP));
+        goto NEXT_ACTIVE_STATE;
+        }
+      }
+
+    /* The state offset is the offset to the opcode */
+
+    code = start_code + state_offset;
+    codevalue = *code;
+
+    /* If this opcode inspects a character, but we are at the end of the
+    subject, remember the fact for use when testing for a partial match. */
+
+    if (clen == 0 && poptable[codevalue] != 0)
+      could_continue = TRUE;
+
+    /* If this opcode is followed by an inline character, load it. It is
+    tempting to test for the presence of a subject character here, but that
+    is wrong, because sometimes zero repetitions of the subject are
+    permitted.
+
+    We also use this mechanism for opcodes such as OP_TYPEPLUS that take an
+    argument that is not a data character - but is always one byte long because
+    the values are small. We have to take special action to deal with  \P, \p,
+    \H, \h, \V, \v and \X in this case. To keep the other cases fast, convert
+    these ones to new opcodes. */
+
+    if (coptable[codevalue] > 0)
+      {
+      dlen = 1;
+#ifdef SUPPORT_UTF
+      if (utf) { GETCHARLEN(d, (code + coptable[codevalue]), dlen); } else
+#endif  /* SUPPORT_UTF */
+      d = code[coptable[codevalue]];
+      if (codevalue >= OP_TYPESTAR)
+        {
+        switch(d)
+          {
+          case OP_ANYBYTE: return PCRE_ERROR_DFA_UITEM;
+          case OP_NOTPROP:
+          case OP_PROP: codevalue += OP_PROP_EXTRA; break;
+          case OP_ANYNL: codevalue += OP_ANYNL_EXTRA; break;
+          case OP_EXTUNI: codevalue += OP_EXTUNI_EXTRA; break;
+          case OP_NOT_HSPACE:
+          case OP_HSPACE: codevalue += OP_HSPACE_EXTRA; break;
+          case OP_NOT_VSPACE:
+          case OP_VSPACE: codevalue += OP_VSPACE_EXTRA; break;
+          default: break;
+          }
+        }
+      }
+    else
+      {
+      dlen = 0;         /* Not strictly necessary, but compilers moan */
+      d = NOTACHAR;     /* if these variables are not set. */
+      }
+
+
+    /* Now process the individual opcodes */
+
+    switch (codevalue)
+      {
+/* ========================================================================== */
+      /* These cases are never obeyed. This is a fudge that causes a compile-
+      time error if the vectors coptable or poptable, which are indexed by
+      opcode, are not the correct length. It seems to be the only way to do
+      such a check at compile time, as the sizeof() operator does not work
+      in the C preprocessor. */
+
+      case OP_TABLE_LENGTH:
+      case OP_TABLE_LENGTH +
+        ((sizeof(coptable) == OP_TABLE_LENGTH) &&
+         (sizeof(poptable) == OP_TABLE_LENGTH)):
+      break;
+
+/* ========================================================================== */
+      /* Reached a closing bracket. If not at the end of the pattern, carry
+      on with the next opcode. For repeating opcodes, also add the repeat
+      state. Note that KETRPOS will always be encountered at the end of the
+      subpattern, because the possessive subpattern repeats are always handled
+      using recursive calls. Thus, it never adds any new states.
+
+      At the end of the (sub)pattern, unless we have an empty string and
+      PCRE_NOTEMPTY is set, or PCRE_NOTEMPTY_ATSTART is set and we are at the
+      start of the subject, save the match data, shifting up all previous
+      matches so we always have the longest first. */
+
+      case OP_KET:
+      case OP_KETRMIN:
+      case OP_KETRMAX:
+      case OP_KETRPOS:
+      if (code != end_code)
+        {
+        ADD_ACTIVE(state_offset + 1 + LINK_SIZE, 0);
+        if (codevalue != OP_KET)
+          {
+          ADD_ACTIVE(state_offset - GET(code, 1), 0);
+          }
+        }
+      else
+        {
+        if (ptr > current_subject ||
+            ((md->moptions & PCRE_NOTEMPTY) == 0 &&
+              ((md->moptions & PCRE_NOTEMPTY_ATSTART) == 0 ||
+                current_subject > start_subject + md->start_offset)))
+          {
+          if (match_count < 0) match_count = (offsetcount >= 2)? 1 : 0;
+            else if (match_count > 0 && ++match_count * 2 > offsetcount)
+              match_count = 0;
+          count = ((match_count == 0)? offsetcount : match_count * 2) - 2;
+          if (count > 0) memmove(offsets + 2, offsets, count * sizeof(int));
+          if (offsetcount >= 2)
+            {
+            offsets[0] = (int)(current_subject - start_subject);
+            offsets[1] = (int)(ptr - start_subject);
+            DPRINTF(("%.*sSet matched string = \"%.*s\"\n", rlevel*2-2, SP,
+              offsets[1] - offsets[0], (char *)current_subject));
+            }
+          if ((md->moptions & PCRE_DFA_SHORTEST) != 0)
+            {
+            DPRINTF(("%.*sEnd of internal_dfa_exec %d: returning %d\n"
+              "%.*s---------------------\n\n", rlevel*2-2, SP, rlevel,
+              match_count, rlevel*2-2, SP));
+            return match_count;
+            }
+          }
+        }
+      break;
+
+/* ========================================================================== */
+      /* These opcodes add to the current list of states without looking
+      at the current character. */
+
+      /*-----------------------------------------------------------------*/
+      case OP_ALT:
+      do { code += GET(code, 1); } while (*code == OP_ALT);
+      ADD_ACTIVE((int)(code - start_code), 0);
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_BRA:
+      case OP_SBRA:
+      do
+        {
+        ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE), 0);
+        code += GET(code, 1);
+        }
+      while (*code == OP_ALT);
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_CBRA:
+      case OP_SCBRA:
+      ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE + IMM2_SIZE),  0);
+      code += GET(code, 1);
+      while (*code == OP_ALT)
+        {
+        ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE),  0);
+        code += GET(code, 1);
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_BRAZERO:
+      case OP_BRAMINZERO:
+      ADD_ACTIVE(state_offset + 1, 0);
+      code += 1 + GET(code, 2);
+      while (*code == OP_ALT) code += GET(code, 1);
+      ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE), 0);
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_SKIPZERO:
+      code += 1 + GET(code, 2);
+      while (*code == OP_ALT) code += GET(code, 1);
+      ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE), 0);
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_CIRC:
+      if (ptr == start_subject && (md->moptions & PCRE_NOTBOL) == 0)
+        { ADD_ACTIVE(state_offset + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_CIRCM:
+      if ((ptr == start_subject && (md->moptions & PCRE_NOTBOL) == 0) ||
+          (ptr != end_subject && WAS_NEWLINE(ptr)))
+        { ADD_ACTIVE(state_offset + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_EOD:
+      if (ptr >= end_subject)
+        {
+        if ((md->moptions & PCRE_PARTIAL_HARD) != 0)
+          could_continue = TRUE;
+        else { ADD_ACTIVE(state_offset + 1, 0); }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_SOD:
+      if (ptr == start_subject) { ADD_ACTIVE(state_offset + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_SOM:
+      if (ptr == start_subject + start_offset) { ADD_ACTIVE(state_offset + 1, 0); }
+      break;
+
+
+/* ========================================================================== */
+      /* These opcodes inspect the next subject character, and sometimes
+      the previous one as well, but do not have an argument. The variable
+      clen contains the length of the current character and is zero if we are
+      at the end of the subject. */
+
+      /*-----------------------------------------------------------------*/
+      case OP_ANY:
+      if (clen > 0 && !IS_NEWLINE(ptr))
+        {
+        if (ptr + 1 >= md->end_subject &&
+            (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
+            NLBLOCK->nltype == NLTYPE_FIXED &&
+            NLBLOCK->nllen == 2 &&
+            c == NLBLOCK->nl[0])
+          {
+          could_continue = partial_newline = TRUE;
+          }
+        else
+          {
+          ADD_NEW(state_offset + 1, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_ALLANY:
+      if (clen > 0)
+        { ADD_NEW(state_offset + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_EODN:
+      if (clen == 0 && (md->moptions & PCRE_PARTIAL_HARD) != 0)
+        could_continue = TRUE;
+      else if (clen == 0 || (IS_NEWLINE(ptr) && ptr == end_subject - md->nllen))
+        { ADD_ACTIVE(state_offset + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_DOLL:
+      if ((md->moptions & PCRE_NOTEOL) == 0)
+        {
+        if (clen == 0 && (md->moptions & PCRE_PARTIAL_HARD) != 0)
+          could_continue = TRUE;
+        else if (clen == 0 ||
+            ((md->poptions & PCRE_DOLLAR_ENDONLY) == 0 && IS_NEWLINE(ptr) &&
+               (ptr == end_subject - md->nllen)
+            ))
+          { ADD_ACTIVE(state_offset + 1, 0); }
+        else if (ptr + 1 >= md->end_subject &&
+                 (md->moptions & (PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT)) != 0 &&
+                 NLBLOCK->nltype == NLTYPE_FIXED &&
+                 NLBLOCK->nllen == 2 &&
+                 c == NLBLOCK->nl[0])
+          {
+          if ((md->moptions & PCRE_PARTIAL_HARD) != 0)
+            {
+            reset_could_continue = TRUE;
+            ADD_NEW_DATA(-(state_offset + 1), 0, 1);
+            }
+          else could_continue = partial_newline = TRUE;
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_DOLLM:
+      if ((md->moptions & PCRE_NOTEOL) == 0)
+        {
+        if (clen == 0 && (md->moptions & PCRE_PARTIAL_HARD) != 0)
+          could_continue = TRUE;
+        else if (clen == 0 ||
+            ((md->poptions & PCRE_DOLLAR_ENDONLY) == 0 && IS_NEWLINE(ptr)))
+          { ADD_ACTIVE(state_offset + 1, 0); }
+        else if (ptr + 1 >= md->end_subject &&
+                 (md->moptions & (PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT)) != 0 &&
+                 NLBLOCK->nltype == NLTYPE_FIXED &&
+                 NLBLOCK->nllen == 2 &&
+                 c == NLBLOCK->nl[0])
+          {
+          if ((md->moptions & PCRE_PARTIAL_HARD) != 0)
+            {
+            reset_could_continue = TRUE;
+            ADD_NEW_DATA(-(state_offset + 1), 0, 1);
+            }
+          else could_continue = partial_newline = TRUE;
+          }
+        }
+      else if (IS_NEWLINE(ptr))
+        { ADD_ACTIVE(state_offset + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+
+      case OP_DIGIT:
+      case OP_WHITESPACE:
+      case OP_WORDCHAR:
+      if (clen > 0 && c < 256 &&
+            ((ctypes[c] & toptable1[codevalue]) ^ toptable2[codevalue]) != 0)
+        { ADD_NEW(state_offset + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_NOT_DIGIT:
+      case OP_NOT_WHITESPACE:
+      case OP_NOT_WORDCHAR:
+      if (clen > 0 && (c >= 256 ||
+            ((ctypes[c] & toptable1[codevalue]) ^ toptable2[codevalue]) != 0))
+        { ADD_NEW(state_offset + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_WORD_BOUNDARY:
+      case OP_NOT_WORD_BOUNDARY:
+        {
+        int left_word, right_word;
+
+        if (ptr > start_subject)
+          {
+          const pcre_uchar *temp = ptr - 1;
+          if (temp < md->start_used_ptr) md->start_used_ptr = temp;
+#ifdef SUPPORT_UTF
+          if (utf) { BACKCHAR(temp); }
+#endif
+          GETCHARTEST(d, temp);
+#ifdef SUPPORT_UCP
+          if ((md->poptions & PCRE_UCP) != 0)
+            {
+            if (d == '_') left_word = TRUE; else
+              {
+              int cat = UCD_CATEGORY(d);
+              left_word = (cat == ucp_L || cat == ucp_N);
+              }
+            }
+          else
+#endif
+          left_word = d < 256 && (ctypes[d] & ctype_word) != 0;
+          }
+        else left_word = FALSE;
+
+        if (clen > 0)
+          {
+#ifdef SUPPORT_UCP
+          if ((md->poptions & PCRE_UCP) != 0)
+            {
+            if (c == '_') right_word = TRUE; else
+              {
+              int cat = UCD_CATEGORY(c);
+              right_word = (cat == ucp_L || cat == ucp_N);
+              }
+            }
+          else
+#endif
+          right_word = c < 256 && (ctypes[c] & ctype_word) != 0;
+          }
+        else right_word = FALSE;
+
+        if ((left_word == right_word) == (codevalue == OP_NOT_WORD_BOUNDARY))
+          { ADD_ACTIVE(state_offset + 1, 0); }
+        }
+      break;
+
+
+      /*-----------------------------------------------------------------*/
+      /* Check the next character by Unicode property. We will get here only
+      if the support is in the binary; otherwise a compile-time error occurs.
+      */
+
+#ifdef SUPPORT_UCP
+      case OP_PROP:
+      case OP_NOTPROP:
+      if (clen > 0)
+        {
+        BOOL OK;
+        const ucd_record * prop = GET_UCD(c);
+        switch(code[1])
+          {
+          case PT_ANY:
+          OK = TRUE;
+          break;
+
+          case PT_LAMP:
+          OK = prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
+               prop->chartype == ucp_Lt;
+          break;
+
+          case PT_GC:
+          OK = PRIV(ucp_gentype)[prop->chartype] == code[2];
+          break;
+
+          case PT_PC:
+          OK = prop->chartype == code[2];
+          break;
+
+          case PT_SC:
+          OK = prop->script == code[2];
+          break;
+
+          /* These are specials for combination cases. */
+
+          case PT_ALNUM:
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+               PRIV(ucp_gentype)[prop->chartype] == ucp_N;
+          break;
+
+          case PT_SPACE:    /* Perl space */
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+               c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR;
+          break;
+
+          case PT_PXSPACE:  /* POSIX space */
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+               c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
+               c == CHAR_FF || c == CHAR_CR;
+          break;
+
+          case PT_WORD:
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+               PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
+               c == CHAR_UNDERSCORE;
+          break;
+
+          /* Should never occur, but keep compilers from grumbling. */
+
+          default:
+          OK = codevalue != OP_PROP;
+          break;
+          }
+
+        if (OK == (codevalue == OP_PROP)) { ADD_NEW(state_offset + 3, 0); }
+        }
+      break;
+#endif
+
+
+
+/* ========================================================================== */
+      /* These opcodes likewise inspect the subject character, but have an
+      argument that is not a data character. It is one of these opcodes:
+      OP_ANY, OP_ALLANY, OP_DIGIT, OP_NOT_DIGIT, OP_WHITESPACE, OP_NOT_SPACE,
+      OP_WORDCHAR, OP_NOT_WORDCHAR. The value is loaded into d. */
+
+      case OP_TYPEPLUS:
+      case OP_TYPEMINPLUS:
+      case OP_TYPEPOSPLUS:
+      count = current_state->count;  /* Already matched */
+      if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
+      if (clen > 0)
+        {
+        if (d == OP_ANY && ptr + 1 >= md->end_subject &&
+            (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
+            NLBLOCK->nltype == NLTYPE_FIXED &&
+            NLBLOCK->nllen == 2 &&
+            c == NLBLOCK->nl[0])
+          {
+          could_continue = partial_newline = TRUE;
+          }
+        else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
+            (c < 256 &&
+              (d != OP_ANY || !IS_NEWLINE(ptr)) &&
+              ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
+          {
+          if (count > 0 && codevalue == OP_TYPEPOSPLUS)
+            {
+            active_count--;            /* Remove non-match possibility */
+            next_active_state--;
+            }
+          count++;
+          ADD_NEW(state_offset, count);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_TYPEQUERY:
+      case OP_TYPEMINQUERY:
+      case OP_TYPEPOSQUERY:
+      ADD_ACTIVE(state_offset + 2, 0);
+      if (clen > 0)
+        {
+        if (d == OP_ANY && ptr + 1 >= md->end_subject &&
+            (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
+            NLBLOCK->nltype == NLTYPE_FIXED &&
+            NLBLOCK->nllen == 2 &&
+            c == NLBLOCK->nl[0])
+          {
+          could_continue = partial_newline = TRUE;
+          }
+        else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
+            (c < 256 &&
+              (d != OP_ANY || !IS_NEWLINE(ptr)) &&
+              ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
+          {
+          if (codevalue == OP_TYPEPOSQUERY)
+            {
+            active_count--;            /* Remove non-match possibility */
+            next_active_state--;
+            }
+          ADD_NEW(state_offset + 2, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_TYPESTAR:
+      case OP_TYPEMINSTAR:
+      case OP_TYPEPOSSTAR:
+      ADD_ACTIVE(state_offset + 2, 0);
+      if (clen > 0)
+        {
+        if (d == OP_ANY && ptr + 1 >= md->end_subject &&
+            (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
+            NLBLOCK->nltype == NLTYPE_FIXED &&
+            NLBLOCK->nllen == 2 &&
+            c == NLBLOCK->nl[0])
+          {
+          could_continue = partial_newline = TRUE;
+          }
+        else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
+            (c < 256 &&
+              (d != OP_ANY || !IS_NEWLINE(ptr)) &&
+              ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
+          {
+          if (codevalue == OP_TYPEPOSSTAR)
+            {
+            active_count--;            /* Remove non-match possibility */
+            next_active_state--;
+            }
+          ADD_NEW(state_offset, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_TYPEEXACT:
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0)
+        {
+        if (d == OP_ANY && ptr + 1 >= md->end_subject &&
+            (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
+            NLBLOCK->nltype == NLTYPE_FIXED &&
+            NLBLOCK->nllen == 2 &&
+            c == NLBLOCK->nl[0])
+          {
+          could_continue = partial_newline = TRUE;
+          }
+        else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
+            (c < 256 &&
+              (d != OP_ANY || !IS_NEWLINE(ptr)) &&
+              ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
+          {
+          if (++count >= GET2(code, 1))
+            { ADD_NEW(state_offset + 1 + IMM2_SIZE + 1, 0); }
+          else
+            { ADD_NEW(state_offset, count); }
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_TYPEUPTO:
+      case OP_TYPEMINUPTO:
+      case OP_TYPEPOSUPTO:
+      ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0);
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0)
+        {
+        if (d == OP_ANY && ptr + 1 >= md->end_subject &&
+            (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
+            NLBLOCK->nltype == NLTYPE_FIXED &&
+            NLBLOCK->nllen == 2 &&
+            c == NLBLOCK->nl[0])
+          {
+          could_continue = partial_newline = TRUE;
+          }
+        else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
+            (c < 256 &&
+              (d != OP_ANY || !IS_NEWLINE(ptr)) &&
+              ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
+          {
+          if (codevalue == OP_TYPEPOSUPTO)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          if (++count >= GET2(code, 1))
+            { ADD_NEW(state_offset + 2 + IMM2_SIZE, 0); }
+          else
+            { ADD_NEW(state_offset, count); }
+          }
+        }
+      break;
+
+/* ========================================================================== */
+      /* These are virtual opcodes that are used when something like
+      OP_TYPEPLUS has OP_PROP, OP_NOTPROP, OP_ANYNL, or OP_EXTUNI as its
+      argument. It keeps the code above fast for the other cases. The argument
+      is in the d variable. */
+
+#ifdef SUPPORT_UCP
+      case OP_PROP_EXTRA + OP_TYPEPLUS:
+      case OP_PROP_EXTRA + OP_TYPEMINPLUS:
+      case OP_PROP_EXTRA + OP_TYPEPOSPLUS:
+      count = current_state->count;           /* Already matched */
+      if (count > 0) { ADD_ACTIVE(state_offset + 4, 0); }
+      if (clen > 0)
+        {
+        BOOL OK;
+        const ucd_record * prop = GET_UCD(c);
+        switch(code[2])
+          {
+          case PT_ANY:
+          OK = TRUE;
+          break;
+
+          case PT_LAMP:
+          OK = prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
+            prop->chartype == ucp_Lt;
+          break;
+
+          case PT_GC:
+          OK = PRIV(ucp_gentype)[prop->chartype] == code[3];
+          break;
+
+          case PT_PC:
+          OK = prop->chartype == code[3];
+          break;
+
+          case PT_SC:
+          OK = prop->script == code[3];
+          break;
+
+          /* These are specials for combination cases. */
+
+          case PT_ALNUM:
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+               PRIV(ucp_gentype)[prop->chartype] == ucp_N;
+          break;
+
+          case PT_SPACE:    /* Perl space */
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+               c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR;
+          break;
+
+          case PT_PXSPACE:  /* POSIX space */
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+               c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
+               c == CHAR_FF || c == CHAR_CR;
+          break;
+
+          case PT_WORD:
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+               PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
+               c == CHAR_UNDERSCORE;
+          break;
+
+          /* Should never occur, but keep compilers from grumbling. */
+
+          default:
+          OK = codevalue != OP_PROP;
+          break;
+          }
+
+        if (OK == (d == OP_PROP))
+          {
+          if (count > 0 && codevalue == OP_PROP_EXTRA + OP_TYPEPOSPLUS)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          count++;
+          ADD_NEW(state_offset, count);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_EXTUNI_EXTRA + OP_TYPEPLUS:
+      case OP_EXTUNI_EXTRA + OP_TYPEMINPLUS:
+      case OP_EXTUNI_EXTRA + OP_TYPEPOSPLUS:
+      count = current_state->count;  /* Already matched */
+      if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
+      if (clen > 0 && UCD_CATEGORY(c) != ucp_M)
+        {
+        const pcre_uchar *nptr = ptr + clen;
+        int ncount = 0;
+        if (count > 0 && codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSPLUS)
+          {
+          active_count--;           /* Remove non-match possibility */
+          next_active_state--;
+          }
+        while (nptr < end_subject)
+          {
+          int nd;
+          int ndlen = 1;
+          GETCHARLEN(nd, nptr, ndlen);
+          if (UCD_CATEGORY(nd) != ucp_M) break;
+          ncount++;
+          nptr += ndlen;
+          }
+        count++;
+        ADD_NEW_DATA(-state_offset, count, ncount);
+        }
+      break;
+#endif
+
+      /*-----------------------------------------------------------------*/
+      case OP_ANYNL_EXTRA + OP_TYPEPLUS:
+      case OP_ANYNL_EXTRA + OP_TYPEMINPLUS:
+      case OP_ANYNL_EXTRA + OP_TYPEPOSPLUS:
+      count = current_state->count;  /* Already matched */
+      if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
+      if (clen > 0)
+        {
+        int ncount = 0;
+        switch (c)
+          {
+          case 0x000b:
+          case 0x000c:
+          case 0x0085:
+          case 0x2028:
+          case 0x2029:
+          if ((md->moptions & PCRE_BSR_ANYCRLF) != 0) break;
+          goto ANYNL01;
+
+          case 0x000d:
+          if (ptr + 1 < end_subject && ptr[1] == 0x0a) ncount = 1;
+          /* Fall through */
+
+          ANYNL01:
+          case 0x000a:
+          if (count > 0 && codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSPLUS)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          count++;
+          ADD_NEW_DATA(-state_offset, count, ncount);
+          break;
+
+          default:
+          break;
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_VSPACE_EXTRA + OP_TYPEPLUS:
+      case OP_VSPACE_EXTRA + OP_TYPEMINPLUS:
+      case OP_VSPACE_EXTRA + OP_TYPEPOSPLUS:
+      count = current_state->count;  /* Already matched */
+      if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
+      if (clen > 0)
+        {
+        BOOL OK;
+        switch (c)
+          {
+          case 0x000a:
+          case 0x000b:
+          case 0x000c:
+          case 0x000d:
+          case 0x0085:
+          case 0x2028:
+          case 0x2029:
+          OK = TRUE;
+          break;
+
+          default:
+          OK = FALSE;
+          break;
+          }
+
+        if (OK == (d == OP_VSPACE))
+          {
+          if (count > 0 && codevalue == OP_VSPACE_EXTRA + OP_TYPEPOSPLUS)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          count++;
+          ADD_NEW_DATA(-state_offset, count, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_HSPACE_EXTRA + OP_TYPEPLUS:
+      case OP_HSPACE_EXTRA + OP_TYPEMINPLUS:
+      case OP_HSPACE_EXTRA + OP_TYPEPOSPLUS:
+      count = current_state->count;  /* Already matched */
+      if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
+      if (clen > 0)
+        {
+        BOOL OK;
+        switch (c)
+          {
+          case 0x09:      /* HT */
+          case 0x20:      /* SPACE */
+          case 0xa0:      /* NBSP */
+          case 0x1680:    /* OGHAM SPACE MARK */
+          case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+          case 0x2000:    /* EN QUAD */
+          case 0x2001:    /* EM QUAD */
+          case 0x2002:    /* EN SPACE */
+          case 0x2003:    /* EM SPACE */
+          case 0x2004:    /* THREE-PER-EM SPACE */
+          case 0x2005:    /* FOUR-PER-EM SPACE */
+          case 0x2006:    /* SIX-PER-EM SPACE */
+          case 0x2007:    /* FIGURE SPACE */
+          case 0x2008:    /* PUNCTUATION SPACE */
+          case 0x2009:    /* THIN SPACE */
+          case 0x200A:    /* HAIR SPACE */
+          case 0x202f:    /* NARROW NO-BREAK SPACE */
+          case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+          case 0x3000:    /* IDEOGRAPHIC SPACE */
+          OK = TRUE;
+          break;
+
+          default:
+          OK = FALSE;
+          break;
+          }
+
+        if (OK == (d == OP_HSPACE))
+          {
+          if (count > 0 && codevalue == OP_HSPACE_EXTRA + OP_TYPEPOSPLUS)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          count++;
+          ADD_NEW_DATA(-state_offset, count, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+#ifdef SUPPORT_UCP
+      case OP_PROP_EXTRA + OP_TYPEQUERY:
+      case OP_PROP_EXTRA + OP_TYPEMINQUERY:
+      case OP_PROP_EXTRA + OP_TYPEPOSQUERY:
+      count = 4;
+      goto QS1;
+
+      case OP_PROP_EXTRA + OP_TYPESTAR:
+      case OP_PROP_EXTRA + OP_TYPEMINSTAR:
+      case OP_PROP_EXTRA + OP_TYPEPOSSTAR:
+      count = 0;
+
+      QS1:
+
+      ADD_ACTIVE(state_offset + 4, 0);
+      if (clen > 0)
+        {
+        BOOL OK;
+        const ucd_record * prop = GET_UCD(c);
+        switch(code[2])
+          {
+          case PT_ANY:
+          OK = TRUE;
+          break;
+
+          case PT_LAMP:
+          OK = prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
+            prop->chartype == ucp_Lt;
+          break;
+
+          case PT_GC:
+          OK = PRIV(ucp_gentype)[prop->chartype] == code[3];
+          break;
+
+          case PT_PC:
+          OK = prop->chartype == code[3];
+          break;
+
+          case PT_SC:
+          OK = prop->script == code[3];
+          break;
+
+          /* These are specials for combination cases. */
+
+          case PT_ALNUM:
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+               PRIV(ucp_gentype)[prop->chartype] == ucp_N;
+          break;
+
+          case PT_SPACE:    /* Perl space */
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+               c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR;
+          break;
+
+          case PT_PXSPACE:  /* POSIX space */
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+               c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
+               c == CHAR_FF || c == CHAR_CR;
+          break;
+
+          case PT_WORD:
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+               PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
+               c == CHAR_UNDERSCORE;
+          break;
+
+          /* Should never occur, but keep compilers from grumbling. */
+
+          default:
+          OK = codevalue != OP_PROP;
+          break;
+          }
+
+        if (OK == (d == OP_PROP))
+          {
+          if (codevalue == OP_PROP_EXTRA + OP_TYPEPOSSTAR ||
+              codevalue == OP_PROP_EXTRA + OP_TYPEPOSQUERY)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          ADD_NEW(state_offset + count, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_EXTUNI_EXTRA + OP_TYPEQUERY:
+      case OP_EXTUNI_EXTRA + OP_TYPEMINQUERY:
+      case OP_EXTUNI_EXTRA + OP_TYPEPOSQUERY:
+      count = 2;
+      goto QS2;
+
+      case OP_EXTUNI_EXTRA + OP_TYPESTAR:
+      case OP_EXTUNI_EXTRA + OP_TYPEMINSTAR:
+      case OP_EXTUNI_EXTRA + OP_TYPEPOSSTAR:
+      count = 0;
+
+      QS2:
+
+      ADD_ACTIVE(state_offset + 2, 0);
+      if (clen > 0 && UCD_CATEGORY(c) != ucp_M)
+        {
+        const pcre_uchar *nptr = ptr + clen;
+        int ncount = 0;
+        if (codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSSTAR ||
+            codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSQUERY)
+          {
+          active_count--;           /* Remove non-match possibility */
+          next_active_state--;
+          }
+        while (nptr < end_subject)
+          {
+          int nd;
+          int ndlen = 1;
+          GETCHARLEN(nd, nptr, ndlen);
+          if (UCD_CATEGORY(nd) != ucp_M) break;
+          ncount++;
+          nptr += ndlen;
+          }
+        ADD_NEW_DATA(-(state_offset + count), 0, ncount);
+        }
+      break;
+#endif
+
+      /*-----------------------------------------------------------------*/
+      case OP_ANYNL_EXTRA + OP_TYPEQUERY:
+      case OP_ANYNL_EXTRA + OP_TYPEMINQUERY:
+      case OP_ANYNL_EXTRA + OP_TYPEPOSQUERY:
+      count = 2;
+      goto QS3;
+
+      case OP_ANYNL_EXTRA + OP_TYPESTAR:
+      case OP_ANYNL_EXTRA + OP_TYPEMINSTAR:
+      case OP_ANYNL_EXTRA + OP_TYPEPOSSTAR:
+      count = 0;
+
+      QS3:
+      ADD_ACTIVE(state_offset + 2, 0);
+      if (clen > 0)
+        {
+        int ncount = 0;
+        switch (c)
+          {
+          case 0x000b:
+          case 0x000c:
+          case 0x0085:
+          case 0x2028:
+          case 0x2029:
+          if ((md->moptions & PCRE_BSR_ANYCRLF) != 0) break;
+          goto ANYNL02;
+
+          case 0x000d:
+          if (ptr + 1 < end_subject && ptr[1] == 0x0a) ncount = 1;
+          /* Fall through */
+
+          ANYNL02:
+          case 0x000a:
+          if (codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSSTAR ||
+              codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSQUERY)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          ADD_NEW_DATA(-(state_offset + count), 0, ncount);
+          break;
+
+          default:
+          break;
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_VSPACE_EXTRA + OP_TYPEQUERY:
+      case OP_VSPACE_EXTRA + OP_TYPEMINQUERY:
+      case OP_VSPACE_EXTRA + OP_TYPEPOSQUERY:
+      count = 2;
+      goto QS4;
+
+      case OP_VSPACE_EXTRA + OP_TYPESTAR:
+      case OP_VSPACE_EXTRA + OP_TYPEMINSTAR:
+      case OP_VSPACE_EXTRA + OP_TYPEPOSSTAR:
+      count = 0;
+
+      QS4:
+      ADD_ACTIVE(state_offset + 2, 0);
+      if (clen > 0)
+        {
+        BOOL OK;
+        switch (c)
+          {
+          case 0x000a:
+          case 0x000b:
+          case 0x000c:
+          case 0x000d:
+          case 0x0085:
+          case 0x2028:
+          case 0x2029:
+          OK = TRUE;
+          break;
+
+          default:
+          OK = FALSE;
+          break;
+          }
+        if (OK == (d == OP_VSPACE))
+          {
+          if (codevalue == OP_VSPACE_EXTRA + OP_TYPEPOSSTAR ||
+              codevalue == OP_VSPACE_EXTRA + OP_TYPEPOSQUERY)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          ADD_NEW_DATA(-(state_offset + count), 0, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_HSPACE_EXTRA + OP_TYPEQUERY:
+      case OP_HSPACE_EXTRA + OP_TYPEMINQUERY:
+      case OP_HSPACE_EXTRA + OP_TYPEPOSQUERY:
+      count = 2;
+      goto QS5;
+
+      case OP_HSPACE_EXTRA + OP_TYPESTAR:
+      case OP_HSPACE_EXTRA + OP_TYPEMINSTAR:
+      case OP_HSPACE_EXTRA + OP_TYPEPOSSTAR:
+      count = 0;
+
+      QS5:
+      ADD_ACTIVE(state_offset + 2, 0);
+      if (clen > 0)
+        {
+        BOOL OK;
+        switch (c)
+          {
+          case 0x09:      /* HT */
+          case 0x20:      /* SPACE */
+          case 0xa0:      /* NBSP */
+          case 0x1680:    /* OGHAM SPACE MARK */
+          case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+          case 0x2000:    /* EN QUAD */
+          case 0x2001:    /* EM QUAD */
+          case 0x2002:    /* EN SPACE */
+          case 0x2003:    /* EM SPACE */
+          case 0x2004:    /* THREE-PER-EM SPACE */
+          case 0x2005:    /* FOUR-PER-EM SPACE */
+          case 0x2006:    /* SIX-PER-EM SPACE */
+          case 0x2007:    /* FIGURE SPACE */
+          case 0x2008:    /* PUNCTUATION SPACE */
+          case 0x2009:    /* THIN SPACE */
+          case 0x200A:    /* HAIR SPACE */
+          case 0x202f:    /* NARROW NO-BREAK SPACE */
+          case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+          case 0x3000:    /* IDEOGRAPHIC SPACE */
+          OK = TRUE;
+          break;
+
+          default:
+          OK = FALSE;
+          break;
+          }
+
+        if (OK == (d == OP_HSPACE))
+          {
+          if (codevalue == OP_HSPACE_EXTRA + OP_TYPEPOSSTAR ||
+              codevalue == OP_HSPACE_EXTRA + OP_TYPEPOSQUERY)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          ADD_NEW_DATA(-(state_offset + count), 0, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+#ifdef SUPPORT_UCP
+      case OP_PROP_EXTRA + OP_TYPEEXACT:
+      case OP_PROP_EXTRA + OP_TYPEUPTO:
+      case OP_PROP_EXTRA + OP_TYPEMINUPTO:
+      case OP_PROP_EXTRA + OP_TYPEPOSUPTO:
+      if (codevalue != OP_PROP_EXTRA + OP_TYPEEXACT)
+        { ADD_ACTIVE(state_offset + 1 + IMM2_SIZE + 3, 0); }
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0)
+        {
+        BOOL OK;
+        const ucd_record * prop = GET_UCD(c);
+        switch(code[1 + IMM2_SIZE + 1])
+          {
+          case PT_ANY:
+          OK = TRUE;
+          break;
+
+          case PT_LAMP:
+          OK = prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
+            prop->chartype == ucp_Lt;
+          break;
+
+          case PT_GC:
+          OK = PRIV(ucp_gentype)[prop->chartype] == code[1 + IMM2_SIZE + 2];
+          break;
+
+          case PT_PC:
+          OK = prop->chartype == code[1 + IMM2_SIZE + 2];
+          break;
+
+          case PT_SC:
+          OK = prop->script == code[1 + IMM2_SIZE + 2];
+          break;
+
+          /* These are specials for combination cases. */
+
+          case PT_ALNUM:
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+               PRIV(ucp_gentype)[prop->chartype] == ucp_N;
+          break;
+
+          case PT_SPACE:    /* Perl space */
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+               c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR;
+          break;
+
+          case PT_PXSPACE:  /* POSIX space */
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+               c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
+               c == CHAR_FF || c == CHAR_CR;
+          break;
+
+          case PT_WORD:
+          OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+               PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
+               c == CHAR_UNDERSCORE;
+          break;
+
+          /* Should never occur, but keep compilers from grumbling. */
+
+          default:
+          OK = codevalue != OP_PROP;
+          break;
+          }
+
+        if (OK == (d == OP_PROP))
+          {
+          if (codevalue == OP_PROP_EXTRA + OP_TYPEPOSUPTO)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          if (++count >= GET2(code, 1))
+            { ADD_NEW(state_offset + 1 + IMM2_SIZE + 3, 0); }
+          else
+            { ADD_NEW(state_offset, count); }
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_EXTUNI_EXTRA + OP_TYPEEXACT:
+      case OP_EXTUNI_EXTRA + OP_TYPEUPTO:
+      case OP_EXTUNI_EXTRA + OP_TYPEMINUPTO:
+      case OP_EXTUNI_EXTRA + OP_TYPEPOSUPTO:
+      if (codevalue != OP_EXTUNI_EXTRA + OP_TYPEEXACT)
+        { ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0); }
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0 && UCD_CATEGORY(c) != ucp_M)
+        {
+        const pcre_uchar *nptr = ptr + clen;
+        int ncount = 0;
+        if (codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSUPTO)
+          {
+          active_count--;           /* Remove non-match possibility */
+          next_active_state--;
+          }
+        while (nptr < end_subject)
+          {
+          int nd;
+          int ndlen = 1;
+          GETCHARLEN(nd, nptr, ndlen);
+          if (UCD_CATEGORY(nd) != ucp_M) break;
+          ncount++;
+          nptr += ndlen;
+          }
+        if (nptr >= end_subject && (md->moptions & PCRE_PARTIAL_HARD) != 0)
+            reset_could_continue = TRUE;
+        if (++count >= GET2(code, 1))
+          { ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, ncount); }
+        else
+          { ADD_NEW_DATA(-state_offset, count, ncount); }
+        }
+      break;
+#endif
+
+      /*-----------------------------------------------------------------*/
+      case OP_ANYNL_EXTRA + OP_TYPEEXACT:
+      case OP_ANYNL_EXTRA + OP_TYPEUPTO:
+      case OP_ANYNL_EXTRA + OP_TYPEMINUPTO:
+      case OP_ANYNL_EXTRA + OP_TYPEPOSUPTO:
+      if (codevalue != OP_ANYNL_EXTRA + OP_TYPEEXACT)
+        { ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0); }
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0)
+        {
+        int ncount = 0;
+        switch (c)
+          {
+          case 0x000b:
+          case 0x000c:
+          case 0x0085:
+          case 0x2028:
+          case 0x2029:
+          if ((md->moptions & PCRE_BSR_ANYCRLF) != 0) break;
+          goto ANYNL03;
+
+          case 0x000d:
+          if (ptr + 1 < end_subject && ptr[1] == 0x0a) ncount = 1;
+          /* Fall through */
+
+          ANYNL03:
+          case 0x000a:
+          if (codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSUPTO)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          if (++count >= GET2(code, 1))
+            { ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, ncount); }
+          else
+            { ADD_NEW_DATA(-state_offset, count, ncount); }
+          break;
+
+          default:
+          break;
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_VSPACE_EXTRA + OP_TYPEEXACT:
+      case OP_VSPACE_EXTRA + OP_TYPEUPTO:
+      case OP_VSPACE_EXTRA + OP_TYPEMINUPTO:
+      case OP_VSPACE_EXTRA + OP_TYPEPOSUPTO:
+      if (codevalue != OP_VSPACE_EXTRA + OP_TYPEEXACT)
+        { ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0); }
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0)
+        {
+        BOOL OK;
+        switch (c)
+          {
+          case 0x000a:
+          case 0x000b:
+          case 0x000c:
+          case 0x000d:
+          case 0x0085:
+          case 0x2028:
+          case 0x2029:
+          OK = TRUE;
+          break;
+
+          default:
+          OK = FALSE;
+          }
+
+        if (OK == (d == OP_VSPACE))
+          {
+          if (codevalue == OP_VSPACE_EXTRA + OP_TYPEPOSUPTO)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          if (++count >= GET2(code, 1))
+            { ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, 0); }
+          else
+            { ADD_NEW_DATA(-state_offset, count, 0); }
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_HSPACE_EXTRA + OP_TYPEEXACT:
+      case OP_HSPACE_EXTRA + OP_TYPEUPTO:
+      case OP_HSPACE_EXTRA + OP_TYPEMINUPTO:
+      case OP_HSPACE_EXTRA + OP_TYPEPOSUPTO:
+      if (codevalue != OP_HSPACE_EXTRA + OP_TYPEEXACT)
+        { ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0); }
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0)
+        {
+        BOOL OK;
+        switch (c)
+          {
+          case 0x09:      /* HT */
+          case 0x20:      /* SPACE */
+          case 0xa0:      /* NBSP */
+          case 0x1680:    /* OGHAM SPACE MARK */
+          case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+          case 0x2000:    /* EN QUAD */
+          case 0x2001:    /* EM QUAD */
+          case 0x2002:    /* EN SPACE */
+          case 0x2003:    /* EM SPACE */
+          case 0x2004:    /* THREE-PER-EM SPACE */
+          case 0x2005:    /* FOUR-PER-EM SPACE */
+          case 0x2006:    /* SIX-PER-EM SPACE */
+          case 0x2007:    /* FIGURE SPACE */
+          case 0x2008:    /* PUNCTUATION SPACE */
+          case 0x2009:    /* THIN SPACE */
+          case 0x200A:    /* HAIR SPACE */
+          case 0x202f:    /* NARROW NO-BREAK SPACE */
+          case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+          case 0x3000:    /* IDEOGRAPHIC SPACE */
+          OK = TRUE;
+          break;
+
+          default:
+          OK = FALSE;
+          break;
+          }
+
+        if (OK == (d == OP_HSPACE))
+          {
+          if (codevalue == OP_HSPACE_EXTRA + OP_TYPEPOSUPTO)
+            {
+            active_count--;           /* Remove non-match possibility */
+            next_active_state--;
+            }
+          if (++count >= GET2(code, 1))
+            { ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, 0); }
+          else
+            { ADD_NEW_DATA(-state_offset, count, 0); }
+          }
+        }
+      break;
+
+/* ========================================================================== */
+      /* These opcodes are followed by a character that is usually compared
+      to the current subject character; it is loaded into d. We still get
+      here even if there is no subject character, because in some cases zero
+      repetitions are permitted. */
+
+      /*-----------------------------------------------------------------*/
+      case OP_CHAR:
+      if (clen > 0 && c == d) { ADD_NEW(state_offset + dlen + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_CHARI:
+      if (clen == 0) break;
+
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+        if (c == d) { ADD_NEW(state_offset + dlen + 1, 0); } else
+          {
+          unsigned int othercase;
+          if (c < 128)
+            othercase = fcc[c];
+          else
+            /* If we have Unicode property support, we can use it to test the
+            other case of the character. */
+#ifdef SUPPORT_UCP
+            othercase = UCD_OTHERCASE(c);
+#else
+            othercase = NOTACHAR;
+#endif
+
+          if (d == othercase) { ADD_NEW(state_offset + dlen + 1, 0); }
+          }
+        }
+      else
+#endif  /* SUPPORT_UTF */
+      /* Not UTF mode */
+        {
+        if (TABLE_GET(c, lcc, c) == TABLE_GET(d, lcc, d))
+          { ADD_NEW(state_offset + 2, 0); }
+        }
+      break;
+
+
+#ifdef SUPPORT_UCP
+      /*-----------------------------------------------------------------*/
+      /* This is a tricky one because it can match more than one character.
+      Find out how many characters to skip, and then set up a negative state
+      to wait for them to pass before continuing. */
+
+      case OP_EXTUNI:
+      if (clen > 0 && UCD_CATEGORY(c) != ucp_M)
+        {
+        const pcre_uchar *nptr = ptr + clen;
+        int ncount = 0;
+        while (nptr < end_subject)
+          {
+          int nclen = 1;
+          GETCHARLEN(c, nptr, nclen);
+          if (UCD_CATEGORY(c) != ucp_M) break;
+          ncount++;
+          nptr += nclen;
+          }
+        if (nptr >= end_subject && (md->moptions & PCRE_PARTIAL_HARD) != 0)
+            reset_could_continue = TRUE;
+        ADD_NEW_DATA(-(state_offset + 1), 0, ncount);
+        }
+      break;
+#endif
+
+      /*-----------------------------------------------------------------*/
+      /* This is a tricky like EXTUNI because it too can match more than one
+      character (when CR is followed by LF). In this case, set up a negative
+      state to wait for one character to pass before continuing. */
+
+      case OP_ANYNL:
+      if (clen > 0) switch(c)
+        {
+        case 0x000b:
+        case 0x000c:
+        case 0x0085:
+        case 0x2028:
+        case 0x2029:
+        if ((md->moptions & PCRE_BSR_ANYCRLF) != 0) break;
+
+        case 0x000a:
+        ADD_NEW(state_offset + 1, 0);
+        break;
+
+        case 0x000d:
+        if (ptr + 1 >= end_subject)
+          {
+          ADD_NEW(state_offset + 1, 0);
+          if ((md->moptions & PCRE_PARTIAL_HARD) != 0)
+            reset_could_continue = TRUE;
+          }
+        else if (ptr[1] == 0x0a)
+          {
+          ADD_NEW_DATA(-(state_offset + 1), 0, 1);
+          }
+        else
+          {
+          ADD_NEW(state_offset + 1, 0);
+          }
+        break;
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_NOT_VSPACE:
+      if (clen > 0) switch(c)
+        {
+        case 0x000a:
+        case 0x000b:
+        case 0x000c:
+        case 0x000d:
+        case 0x0085:
+        case 0x2028:
+        case 0x2029:
+        break;
+
+        default:
+        ADD_NEW(state_offset + 1, 0);
+        break;
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_VSPACE:
+      if (clen > 0) switch(c)
+        {
+        case 0x000a:
+        case 0x000b:
+        case 0x000c:
+        case 0x000d:
+        case 0x0085:
+        case 0x2028:
+        case 0x2029:
+        ADD_NEW(state_offset + 1, 0);
+        break;
+
+        default: break;
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_NOT_HSPACE:
+      if (clen > 0) switch(c)
+        {
+        case 0x09:      /* HT */
+        case 0x20:      /* SPACE */
+        case 0xa0:      /* NBSP */
+        case 0x1680:    /* OGHAM SPACE MARK */
+        case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+        case 0x2000:    /* EN QUAD */
+        case 0x2001:    /* EM QUAD */
+        case 0x2002:    /* EN SPACE */
+        case 0x2003:    /* EM SPACE */
+        case 0x2004:    /* THREE-PER-EM SPACE */
+        case 0x2005:    /* FOUR-PER-EM SPACE */
+        case 0x2006:    /* SIX-PER-EM SPACE */
+        case 0x2007:    /* FIGURE SPACE */
+        case 0x2008:    /* PUNCTUATION SPACE */
+        case 0x2009:    /* THIN SPACE */
+        case 0x200A:    /* HAIR SPACE */
+        case 0x202f:    /* NARROW NO-BREAK SPACE */
+        case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+        case 0x3000:    /* IDEOGRAPHIC SPACE */
+        break;
+
+        default:
+        ADD_NEW(state_offset + 1, 0);
+        break;
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_HSPACE:
+      if (clen > 0) switch(c)
+        {
+        case 0x09:      /* HT */
+        case 0x20:      /* SPACE */
+        case 0xa0:      /* NBSP */
+        case 0x1680:    /* OGHAM SPACE MARK */
+        case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+        case 0x2000:    /* EN QUAD */
+        case 0x2001:    /* EM QUAD */
+        case 0x2002:    /* EN SPACE */
+        case 0x2003:    /* EM SPACE */
+        case 0x2004:    /* THREE-PER-EM SPACE */
+        case 0x2005:    /* FOUR-PER-EM SPACE */
+        case 0x2006:    /* SIX-PER-EM SPACE */
+        case 0x2007:    /* FIGURE SPACE */
+        case 0x2008:    /* PUNCTUATION SPACE */
+        case 0x2009:    /* THIN SPACE */
+        case 0x200A:    /* HAIR SPACE */
+        case 0x202f:    /* NARROW NO-BREAK SPACE */
+        case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+        case 0x3000:    /* IDEOGRAPHIC SPACE */
+        ADD_NEW(state_offset + 1, 0);
+        break;
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      /* Match a negated single character casefully. */
+
+      case OP_NOT:
+      if (clen > 0 && c != d) { ADD_NEW(state_offset + dlen + 1, 0); }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      /* Match a negated single character caselessly. */
+
+      case OP_NOTI:
+      if (clen > 0)
+        {
+        unsigned int otherd;
+#ifdef SUPPORT_UTF
+        if (utf && d >= 128)
+          {
+#ifdef SUPPORT_UCP
+          otherd = UCD_OTHERCASE(d);
+#endif  /* SUPPORT_UCP */
+          }
+        else
+#endif  /* SUPPORT_UTF */
+        otherd = TABLE_GET(d, fcc, d);
+        if (c != d && c != otherd)
+          { ADD_NEW(state_offset + dlen + 1, 0); }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_PLUSI:
+      case OP_MINPLUSI:
+      case OP_POSPLUSI:
+      case OP_NOTPLUSI:
+      case OP_NOTMINPLUSI:
+      case OP_NOTPOSPLUSI:
+      caseless = TRUE;
+      codevalue -= OP_STARI - OP_STAR;
+
+      /* Fall through */
+      case OP_PLUS:
+      case OP_MINPLUS:
+      case OP_POSPLUS:
+      case OP_NOTPLUS:
+      case OP_NOTMINPLUS:
+      case OP_NOTPOSPLUS:
+      count = current_state->count;  /* Already matched */
+      if (count > 0) { ADD_ACTIVE(state_offset + dlen + 1, 0); }
+      if (clen > 0)
+        {
+        unsigned int otherd = NOTACHAR;
+        if (caseless)
+          {
+#ifdef SUPPORT_UTF
+          if (utf && d >= 128)
+            {
+#ifdef SUPPORT_UCP
+            otherd = UCD_OTHERCASE(d);
+#endif  /* SUPPORT_UCP */
+            }
+          else
+#endif  /* SUPPORT_UTF */
+          otherd = TABLE_GET(d, fcc, d);
+          }
+        if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
+          {
+          if (count > 0 &&
+              (codevalue == OP_POSPLUS || codevalue == OP_NOTPOSPLUS))
+            {
+            active_count--;             /* Remove non-match possibility */
+            next_active_state--;
+            }
+          count++;
+          ADD_NEW(state_offset, count);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_QUERYI:
+      case OP_MINQUERYI:
+      case OP_POSQUERYI:
+      case OP_NOTQUERYI:
+      case OP_NOTMINQUERYI:
+      case OP_NOTPOSQUERYI:
+      caseless = TRUE;
+      codevalue -= OP_STARI - OP_STAR;
+      /* Fall through */
+      case OP_QUERY:
+      case OP_MINQUERY:
+      case OP_POSQUERY:
+      case OP_NOTQUERY:
+      case OP_NOTMINQUERY:
+      case OP_NOTPOSQUERY:
+      ADD_ACTIVE(state_offset + dlen + 1, 0);
+      if (clen > 0)
+        {
+        unsigned int otherd = NOTACHAR;
+        if (caseless)
+          {
+#ifdef SUPPORT_UTF
+          if (utf && d >= 128)
+            {
+#ifdef SUPPORT_UCP
+            otherd = UCD_OTHERCASE(d);
+#endif  /* SUPPORT_UCP */
+            }
+          else
+#endif  /* SUPPORT_UTF */
+          otherd = TABLE_GET(d, fcc, d);
+          }
+        if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
+          {
+          if (codevalue == OP_POSQUERY || codevalue == OP_NOTPOSQUERY)
+            {
+            active_count--;            /* Remove non-match possibility */
+            next_active_state--;
+            }
+          ADD_NEW(state_offset + dlen + 1, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_STARI:
+      case OP_MINSTARI:
+      case OP_POSSTARI:
+      case OP_NOTSTARI:
+      case OP_NOTMINSTARI:
+      case OP_NOTPOSSTARI:
+      caseless = TRUE;
+      codevalue -= OP_STARI - OP_STAR;
+      /* Fall through */
+      case OP_STAR:
+      case OP_MINSTAR:
+      case OP_POSSTAR:
+      case OP_NOTSTAR:
+      case OP_NOTMINSTAR:
+      case OP_NOTPOSSTAR:
+      ADD_ACTIVE(state_offset + dlen + 1, 0);
+      if (clen > 0)
+        {
+        unsigned int otherd = NOTACHAR;
+        if (caseless)
+          {
+#ifdef SUPPORT_UTF
+          if (utf && d >= 128)
+            {
+#ifdef SUPPORT_UCP
+            otherd = UCD_OTHERCASE(d);
+#endif  /* SUPPORT_UCP */
+            }
+          else
+#endif  /* SUPPORT_UTF */
+          otherd = TABLE_GET(d, fcc, d);
+          }
+        if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
+          {
+          if (codevalue == OP_POSSTAR || codevalue == OP_NOTPOSSTAR)
+            {
+            active_count--;            /* Remove non-match possibility */
+            next_active_state--;
+            }
+          ADD_NEW(state_offset, 0);
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_EXACTI:
+      case OP_NOTEXACTI:
+      caseless = TRUE;
+      codevalue -= OP_STARI - OP_STAR;
+      /* Fall through */
+      case OP_EXACT:
+      case OP_NOTEXACT:
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0)
+        {
+        unsigned int otherd = NOTACHAR;
+        if (caseless)
+          {
+#ifdef SUPPORT_UTF
+          if (utf && d >= 128)
+            {
+#ifdef SUPPORT_UCP
+            otherd = UCD_OTHERCASE(d);
+#endif  /* SUPPORT_UCP */
+            }
+          else
+#endif  /* SUPPORT_UTF */
+          otherd = TABLE_GET(d, fcc, d);
+          }
+        if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
+          {
+          if (++count >= GET2(code, 1))
+            { ADD_NEW(state_offset + dlen + 1 + IMM2_SIZE, 0); }
+          else
+            { ADD_NEW(state_offset, count); }
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_UPTOI:
+      case OP_MINUPTOI:
+      case OP_POSUPTOI:
+      case OP_NOTUPTOI:
+      case OP_NOTMINUPTOI:
+      case OP_NOTPOSUPTOI:
+      caseless = TRUE;
+      codevalue -= OP_STARI - OP_STAR;
+      /* Fall through */
+      case OP_UPTO:
+      case OP_MINUPTO:
+      case OP_POSUPTO:
+      case OP_NOTUPTO:
+      case OP_NOTMINUPTO:
+      case OP_NOTPOSUPTO:
+      ADD_ACTIVE(state_offset + dlen + 1 + IMM2_SIZE, 0);
+      count = current_state->count;  /* Number already matched */
+      if (clen > 0)
+        {
+        unsigned int otherd = NOTACHAR;
+        if (caseless)
+          {
+#ifdef SUPPORT_UTF
+          if (utf && d >= 128)
+            {
+#ifdef SUPPORT_UCP
+            otherd = UCD_OTHERCASE(d);
+#endif  /* SUPPORT_UCP */
+            }
+          else
+#endif  /* SUPPORT_UTF */
+          otherd = TABLE_GET(d, fcc, d);
+          }
+        if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
+          {
+          if (codevalue == OP_POSUPTO || codevalue == OP_NOTPOSUPTO)
+            {
+            active_count--;             /* Remove non-match possibility */
+            next_active_state--;
+            }
+          if (++count >= GET2(code, 1))
+            { ADD_NEW(state_offset + dlen + 1 + IMM2_SIZE, 0); }
+          else
+            { ADD_NEW(state_offset, count); }
+          }
+        }
+      break;
+
+
+/* ========================================================================== */
+      /* These are the class-handling opcodes */
+
+      case OP_CLASS:
+      case OP_NCLASS:
+      case OP_XCLASS:
+        {
+        BOOL isinclass = FALSE;
+        int next_state_offset;
+        const pcre_uchar *ecode;
+
+        /* For a simple class, there is always just a 32-byte table, and we
+        can set isinclass from it. */
+
+        if (codevalue != OP_XCLASS)
+          {
+          ecode = code + 1 + (32 / sizeof(pcre_uchar));
+          if (clen > 0)
+            {
+            isinclass = (c > 255)? (codevalue == OP_NCLASS) :
+              ((((pcre_uint8 *)(code + 1))[c/8] & (1 << (c&7))) != 0);
+            }
+          }
+
+        /* An extended class may have a table or a list of single characters,
+        ranges, or both, and it may be positive or negative. There's a
+        function that sorts all this out. */
+
+        else
+         {
+         ecode = code + GET(code, 1);
+         if (clen > 0) isinclass = PRIV(xclass)(c, code + 1 + LINK_SIZE, utf);
+         }
+
+        /* At this point, isinclass is set for all kinds of class, and ecode
+        points to the byte after the end of the class. If there is a
+        quantifier, this is where it will be. */
+
+        next_state_offset = (int)(ecode - start_code);
+
+        switch (*ecode)
+          {
+          case OP_CRSTAR:
+          case OP_CRMINSTAR:
+          ADD_ACTIVE(next_state_offset + 1, 0);
+          if (isinclass) { ADD_NEW(state_offset, 0); }
+          break;
+
+          case OP_CRPLUS:
+          case OP_CRMINPLUS:
+          count = current_state->count;  /* Already matched */
+          if (count > 0) { ADD_ACTIVE(next_state_offset + 1, 0); }
+          if (isinclass) { count++; ADD_NEW(state_offset, count); }
+          break;
+
+          case OP_CRQUERY:
+          case OP_CRMINQUERY:
+          ADD_ACTIVE(next_state_offset + 1, 0);
+          if (isinclass) { ADD_NEW(next_state_offset + 1, 0); }
+          break;
+
+          case OP_CRRANGE:
+          case OP_CRMINRANGE:
+          count = current_state->count;  /* Already matched */
+          if (count >= GET2(ecode, 1))
+            { ADD_ACTIVE(next_state_offset + 1 + 2 * IMM2_SIZE, 0); }
+          if (isinclass)
+            {
+            int max = GET2(ecode, 1 + IMM2_SIZE);
+            if (++count >= max && max != 0)   /* Max 0 => no limit */
+              { ADD_NEW(next_state_offset + 1 + 2 * IMM2_SIZE, 0); }
+            else
+              { ADD_NEW(state_offset, count); }
+            }
+          break;
+
+          default:
+          if (isinclass) { ADD_NEW(next_state_offset, 0); }
+          break;
+          }
+        }
+      break;
+
+/* ========================================================================== */
+      /* These are the opcodes for fancy brackets of various kinds. We have
+      to use recursion in order to handle them. The "always failing" assertion
+      (?!) is optimised to OP_FAIL when compiling, so we have to support that,
+      though the other "backtracking verbs" are not supported. */
+
+      case OP_FAIL:
+      forced_fail++;    /* Count FAILs for multiple states */
+      break;
+
+      case OP_ASSERT:
+      case OP_ASSERT_NOT:
+      case OP_ASSERTBACK:
+      case OP_ASSERTBACK_NOT:
+        {
+        int rc;
+        int local_offsets[2];
+        int local_workspace[1000];
+        const pcre_uchar *endasscode = code + GET(code, 1);
+
+        while (*endasscode == OP_ALT) endasscode += GET(endasscode, 1);
+
+        rc = internal_dfa_exec(
+          md,                                   /* static match data */
+          code,                                 /* this subexpression's code */
+          ptr,                                  /* where we currently are */
+          (int)(ptr - start_subject),           /* start offset */
+          local_offsets,                        /* offset vector */
+          sizeof(local_offsets)/sizeof(int),    /* size of same */
+          local_workspace,                      /* workspace vector */
+          sizeof(local_workspace)/sizeof(int),  /* size of same */
+          rlevel);                              /* function recursion level */
+
+        if (rc == PCRE_ERROR_DFA_UITEM) return rc;
+        if ((rc >= 0) == (codevalue == OP_ASSERT || codevalue == OP_ASSERTBACK))
+            { ADD_ACTIVE((int)(endasscode + LINK_SIZE + 1 - start_code), 0); }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_COND:
+      case OP_SCOND:
+        {
+        int local_offsets[1000];
+        int local_workspace[1000];
+        int codelink = GET(code, 1);
+        int condcode;
+
+        /* Because of the way auto-callout works during compile, a callout item
+        is inserted between OP_COND and an assertion condition. This does not
+        happen for the other conditions. */
+
+        if (code[LINK_SIZE+1] == OP_CALLOUT)
+          {
+          rrc = 0;
+          if (PUBL(callout) != NULL)
+            {
+            PUBL(callout_block) cb;
+            cb.version          = 1;   /* Version 1 of the callout block */
+            cb.callout_number   = code[LINK_SIZE+2];
+            cb.offset_vector    = offsets;
+#ifdef COMPILE_PCRE8
+            cb.subject          = (PCRE_SPTR)start_subject;
+#else
+            cb.subject          = (PCRE_SPTR16)start_subject;
+#endif
+            cb.subject_length   = (int)(end_subject - start_subject);
+            cb.start_match      = (int)(current_subject - start_subject);
+            cb.current_position = (int)(ptr - start_subject);
+            cb.pattern_position = GET(code, LINK_SIZE + 3);
+            cb.next_item_length = GET(code, 3 + 2*LINK_SIZE);
+            cb.capture_top      = 1;
+            cb.capture_last     = -1;
+            cb.callout_data     = md->callout_data;
+            cb.mark             = NULL;   /* No (*MARK) support */
+            if ((rrc = (*PUBL(callout))(&cb)) < 0) return rrc;   /* Abandon */
+            }
+          if (rrc > 0) break;                      /* Fail this thread */
+          code += PRIV(OP_lengths)[OP_CALLOUT];    /* Skip callout data */
+          }
+
+        condcode = code[LINK_SIZE+1];
+
+        /* Back reference conditions are not supported */
+
+        if (condcode == OP_CREF || condcode == OP_NCREF)
+          return PCRE_ERROR_DFA_UCOND;
+
+        /* The DEFINE condition is always false */
+
+        if (condcode == OP_DEF)
+          { ADD_ACTIVE(state_offset + codelink + LINK_SIZE + 1, 0); }
+
+        /* The only supported version of OP_RREF is for the value RREF_ANY,
+        which means "test if in any recursion". We can't test for specifically
+        recursed groups. */
+
+        else if (condcode == OP_RREF || condcode == OP_NRREF)
+          {
+          int value = GET2(code, LINK_SIZE + 2);
+          if (value != RREF_ANY) return PCRE_ERROR_DFA_UCOND;
+          if (md->recursive != NULL)
+            { ADD_ACTIVE(state_offset + LINK_SIZE + 2 + IMM2_SIZE, 0); }
+          else { ADD_ACTIVE(state_offset + codelink + LINK_SIZE + 1, 0); }
+          }
+
+        /* Otherwise, the condition is an assertion */
+
+        else
+          {
+          int rc;
+          const pcre_uchar *asscode = code + LINK_SIZE + 1;
+          const pcre_uchar *endasscode = asscode + GET(asscode, 1);
+
+          while (*endasscode == OP_ALT) endasscode += GET(endasscode, 1);
+
+          rc = internal_dfa_exec(
+            md,                                   /* fixed match data */
+            asscode,                              /* this subexpression's code */
+            ptr,                                  /* where we currently are */
+            (int)(ptr - start_subject),           /* start offset */
+            local_offsets,                        /* offset vector */
+            sizeof(local_offsets)/sizeof(int),    /* size of same */
+            local_workspace,                      /* workspace vector */
+            sizeof(local_workspace)/sizeof(int),  /* size of same */
+            rlevel);                              /* function recursion level */
+
+          if (rc == PCRE_ERROR_DFA_UITEM) return rc;
+          if ((rc >= 0) ==
+                (condcode == OP_ASSERT || condcode == OP_ASSERTBACK))
+            { ADD_ACTIVE((int)(endasscode + LINK_SIZE + 1 - start_code), 0); }
+          else
+            { ADD_ACTIVE(state_offset + codelink + LINK_SIZE + 1, 0); }
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_RECURSE:
+        {
+        dfa_recursion_info *ri;
+        int local_offsets[1000];
+        int local_workspace[1000];
+        const pcre_uchar *callpat = start_code + GET(code, 1);
+        int recno = (callpat == md->start_code)? 0 :
+          GET2(callpat, 1 + LINK_SIZE);
+        int rc;
+
+        DPRINTF(("%.*sStarting regex recursion\n", rlevel*2-2, SP));
+
+        /* Check for repeating a recursion without advancing the subject
+        pointer. This should catch convoluted mutual recursions. (Some simple
+        cases are caught at compile time.) */
+
+        for (ri = md->recursive; ri != NULL; ri = ri->prevrec)
+          if (recno == ri->group_num && ptr == ri->subject_position)
+            return PCRE_ERROR_RECURSELOOP;
+
+        /* Remember this recursion and where we started it so as to
+        catch infinite loops. */
+
+        new_recursive.group_num = recno;
+        new_recursive.subject_position = ptr;
+        new_recursive.prevrec = md->recursive;
+        md->recursive = &new_recursive;
+
+        rc = internal_dfa_exec(
+          md,                                   /* fixed match data */
+          callpat,                              /* this subexpression's code */
+          ptr,                                  /* where we currently are */
+          (int)(ptr - start_subject),           /* start offset */
+          local_offsets,                        /* offset vector */
+          sizeof(local_offsets)/sizeof(int),    /* size of same */
+          local_workspace,                      /* workspace vector */
+          sizeof(local_workspace)/sizeof(int),  /* size of same */
+          rlevel);                              /* function recursion level */
+
+        md->recursive = new_recursive.prevrec;  /* Done this recursion */
+
+        DPRINTF(("%.*sReturn from regex recursion: rc=%d\n", rlevel*2-2, SP,
+          rc));
+
+        /* Ran out of internal offsets */
+
+        if (rc == 0) return PCRE_ERROR_DFA_RECURSE;
+
+        /* For each successful matched substring, set up the next state with a
+        count of characters to skip before trying it. Note that the count is in
+        characters, not bytes. */
+
+        if (rc > 0)
+          {
+          for (rc = rc*2 - 2; rc >= 0; rc -= 2)
+            {
+            int charcount = local_offsets[rc+1] - local_offsets[rc];
+#ifdef SUPPORT_UTF
+            if (utf)
+              {
+              const pcre_uchar *p = start_subject + local_offsets[rc];
+              const pcre_uchar *pp = start_subject + local_offsets[rc+1];
+              while (p < pp) if (NOT_FIRSTCHAR(*p++)) charcount--;
+              }
+#endif
+            if (charcount > 0)
+              {
+              ADD_NEW_DATA(-(state_offset + LINK_SIZE + 1), 0, (charcount - 1));
+              }
+            else
+              {
+              ADD_ACTIVE(state_offset + LINK_SIZE + 1, 0);
+              }
+            }
+          }
+        else if (rc != PCRE_ERROR_NOMATCH) return rc;
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_BRAPOS:
+      case OP_SBRAPOS:
+      case OP_CBRAPOS:
+      case OP_SCBRAPOS:
+      case OP_BRAPOSZERO:
+        {
+        int charcount, matched_count;
+        const pcre_uchar *local_ptr = ptr;
+        BOOL allow_zero;
+
+        if (codevalue == OP_BRAPOSZERO)
+          {
+          allow_zero = TRUE;
+          codevalue = *(++code);  /* Codevalue will be one of above BRAs */
+          }
+        else allow_zero = FALSE;
+
+        /* Loop to match the subpattern as many times as possible as if it were
+        a complete pattern. */
+
+        for (matched_count = 0;; matched_count++)
+          {
+          int local_offsets[2];
+          int local_workspace[1000];
+
+          int rc = internal_dfa_exec(
+            md,                                   /* fixed match data */
+            code,                                 /* this subexpression's code */
+            local_ptr,                            /* where we currently are */
+            (int)(ptr - start_subject),           /* start offset */
+            local_offsets,                        /* offset vector */
+            sizeof(local_offsets)/sizeof(int),    /* size of same */
+            local_workspace,                      /* workspace vector */
+            sizeof(local_workspace)/sizeof(int),  /* size of same */
+            rlevel);                              /* function recursion level */
+
+          /* Failed to match */
+
+          if (rc < 0)
+            {
+            if (rc != PCRE_ERROR_NOMATCH) return rc;
+            break;
+            }
+
+          /* Matched: break the loop if zero characters matched. */
+
+          charcount = local_offsets[1] - local_offsets[0];
+          if (charcount == 0) break;
+          local_ptr += charcount;    /* Advance temporary position ptr */
+          }
+
+        /* At this point we have matched the subpattern matched_count
+        times, and local_ptr is pointing to the character after the end of the
+        last match. */
+
+        if (matched_count > 0 || allow_zero)
+          {
+          const pcre_uchar *end_subpattern = code;
+          int next_state_offset;
+
+          do { end_subpattern += GET(end_subpattern, 1); }
+            while (*end_subpattern == OP_ALT);
+          next_state_offset =
+            (int)(end_subpattern - start_code + LINK_SIZE + 1);
+
+          /* Optimization: if there are no more active states, and there
+          are no new states yet set up, then skip over the subject string
+          right here, to save looping. Otherwise, set up the new state to swing
+          into action when the end of the matched substring is reached. */
+
+          if (i + 1 >= active_count && new_count == 0)
+            {
+            ptr = local_ptr;
+            clen = 0;
+            ADD_NEW(next_state_offset, 0);
+            }
+          else
+            {
+            const pcre_uchar *p = ptr;
+            const pcre_uchar *pp = local_ptr;
+            charcount = (int)(pp - p);
+#ifdef SUPPORT_UTF
+            if (utf) while (p < pp) if (NOT_FIRSTCHAR(*p++)) charcount--;
+#endif
+            ADD_NEW_DATA(-next_state_offset, 0, (charcount - 1));
+            }
+          }
+        }
+      break;
+
+      /*-----------------------------------------------------------------*/
+      case OP_ONCE:
+      case OP_ONCE_NC:
+        {
+        int local_offsets[2];
+        int local_workspace[1000];
+
+        int rc = internal_dfa_exec(
+          md,                                   /* fixed match data */
+          code,                                 /* this subexpression's code */
+          ptr,                                  /* where we currently are */
+          (int)(ptr - start_subject),           /* start offset */
+          local_offsets,                        /* offset vector */
+          sizeof(local_offsets)/sizeof(int),    /* size of same */
+          local_workspace,                      /* workspace vector */
+          sizeof(local_workspace)/sizeof(int),  /* size of same */
+          rlevel);                              /* function recursion level */
+
+        if (rc >= 0)
+          {
+          const pcre_uchar *end_subpattern = code;
+          int charcount = local_offsets[1] - local_offsets[0];
+          int next_state_offset, repeat_state_offset;
+
+          do { end_subpattern += GET(end_subpattern, 1); }
+            while (*end_subpattern == OP_ALT);
+          next_state_offset =
+            (int)(end_subpattern - start_code + LINK_SIZE + 1);
+
+          /* If the end of this subpattern is KETRMAX or KETRMIN, we must
+          arrange for the repeat state also to be added to the relevant list.
+          Calculate the offset, or set -1 for no repeat. */
+
+          repeat_state_offset = (*end_subpattern == OP_KETRMAX ||
+                                 *end_subpattern == OP_KETRMIN)?
+            (int)(end_subpattern - start_code - GET(end_subpattern, 1)) : -1;
+
+          /* If we have matched an empty string, add the next state at the
+          current character pointer. This is important so that the duplicate
+          checking kicks in, which is what breaks infinite loops that match an
+          empty string. */
+
+          if (charcount == 0)
+            {
+            ADD_ACTIVE(next_state_offset, 0);
+            }
+
+          /* Optimization: if there are no more active states, and there
+          are no new states yet set up, then skip over the subject string
+          right here, to save looping. Otherwise, set up the new state to swing
+          into action when the end of the matched substring is reached. */
+
+          else if (i + 1 >= active_count && new_count == 0)
+            {
+            ptr += charcount;
+            clen = 0;
+            ADD_NEW(next_state_offset, 0);
+
+            /* If we are adding a repeat state at the new character position,
+            we must fudge things so that it is the only current state.
+            Otherwise, it might be a duplicate of one we processed before, and
+            that would cause it to be skipped. */
+
+            if (repeat_state_offset >= 0)
+              {
+              next_active_state = active_states;
+              active_count = 0;
+              i = -1;
+              ADD_ACTIVE(repeat_state_offset, 0);
+              }
+            }
+          else
+            {
+#ifdef SUPPORT_UTF
+            if (utf)
+              {
+              const pcre_uchar *p = start_subject + local_offsets[0];
+              const pcre_uchar *pp = start_subject + local_offsets[1];
+              while (p < pp) if (NOT_FIRSTCHAR(*p++)) charcount--;
+              }
+#endif
+            ADD_NEW_DATA(-next_state_offset, 0, (charcount - 1));
+            if (repeat_state_offset >= 0)
+              { ADD_NEW_DATA(-repeat_state_offset, 0, (charcount - 1)); }
+            }
+          }
+        else if (rc != PCRE_ERROR_NOMATCH) return rc;
+        }
+      break;
+
+
+/* ========================================================================== */
+      /* Handle callouts */
+
+      case OP_CALLOUT:
+      rrc = 0;
+      if (PUBL(callout) != NULL)
+        {
+        PUBL(callout_block) cb;
+        cb.version          = 1;   /* Version 1 of the callout block */
+        cb.callout_number   = code[1];
+        cb.offset_vector    = offsets;
+#ifdef COMPILE_PCRE8
+        cb.subject          = (PCRE_SPTR)start_subject;
+#else
+        cb.subject          = (PCRE_SPTR16)start_subject;
+#endif
+        cb.subject_length   = (int)(end_subject - start_subject);
+        cb.start_match      = (int)(current_subject - start_subject);
+        cb.current_position = (int)(ptr - start_subject);
+        cb.pattern_position = GET(code, 2);
+        cb.next_item_length = GET(code, 2 + LINK_SIZE);
+        cb.capture_top      = 1;
+        cb.capture_last     = -1;
+        cb.callout_data     = md->callout_data;
+        cb.mark             = NULL;   /* No (*MARK) support */
+        if ((rrc = (*PUBL(callout))(&cb)) < 0) return rrc;   /* Abandon */
+        }
+      if (rrc == 0)
+        { ADD_ACTIVE(state_offset + PRIV(OP_lengths)[OP_CALLOUT], 0); }
+      break;
+
+
+/* ========================================================================== */
+      default:        /* Unsupported opcode */
+      return PCRE_ERROR_DFA_UITEM;
+      }
+
+    NEXT_ACTIVE_STATE: continue;
+
+    }      /* End of loop scanning active states */
+
+  /* We have finished the processing at the current subject character. If no
+  new states have been set for the next character, we have found all the
+  matches that we are going to find. If we are at the top level and partial
+  matching has been requested, check for appropriate conditions.
+
+  The "forced_ fail" variable counts the number of (*F) encountered for the
+  character. If it is equal to the original active_count (saved in
+  workspace[1]) it means that (*F) was found on every active state. In this
+  case we don't want to give a partial match.
+
+  The "could_continue" variable is true if a state could have continued but
+  for the fact that the end of the subject was reached. */
+
+  if (new_count <= 0)
+    {
+    if (rlevel == 1 &&                               /* Top level, and */
+        could_continue &&                            /* Some could go on, and */
+        forced_fail != workspace[1] &&               /* Not all forced fail & */
+        (                                            /* either... */
+        (md->moptions & PCRE_PARTIAL_HARD) != 0      /* Hard partial */
+        ||                                           /* or... */
+        ((md->moptions & PCRE_PARTIAL_SOFT) != 0 &&  /* Soft partial and */
+         match_count < 0)                            /* no matches */
+        ) &&                                         /* And... */
+        (
+        partial_newline ||                           /* Either partial NL */
+          (                                          /* or ... */
+          ptr >= end_subject &&                /* End of subject and */
+          ptr > md->start_used_ptr)            /* Inspected non-empty string */
+          )
+        )
+      {
+      if (offsetcount >= 2)
+        {
+        offsets[0] = (int)(md->start_used_ptr - start_subject);
+        offsets[1] = (int)(end_subject - start_subject);
+        }
+      match_count = PCRE_ERROR_PARTIAL;
+      }
+
+    DPRINTF(("%.*sEnd of internal_dfa_exec %d: returning %d\n"
+      "%.*s---------------------\n\n", rlevel*2-2, SP, rlevel, match_count,
+      rlevel*2-2, SP));
+    break;        /* In effect, "return", but see the comment below */
+    }
+
+  /* One or more states are active for the next character. */
+
+  ptr += clen;    /* Advance to next subject character */
+  }               /* Loop to move along the subject string */
+
+/* Control gets here from "break" a few lines above. We do it this way because
+if we use "return" above, we have compiler trouble. Some compilers warn if
+there's nothing here because they think the function doesn't return a value. On
+the other hand, if we put a dummy statement here, some more clever compilers
+complain that it can't be reached. Sigh. */
+
+return match_count;
+}
+
+
+
+
+/*************************************************
+*    Execute a Regular Expression - DFA engine   *
+*************************************************/
+
+/* This external function applies a compiled re to a subject string using a DFA
+engine. This function calls the internal function multiple times if the pattern
+is not anchored.
+
+Arguments:
+  argument_re     points to the compiled expression
+  extra_data      points to extra data or is NULL
+  subject         points to the subject string
+  length          length of subject string (may contain binary zeros)
+  start_offset    where to start in the subject string
+  options         option bits
+  offsets         vector of match offsets
+  offsetcount     size of same
+  workspace       workspace vector
+  wscount         size of same
+
+Returns:          > 0 => number of match offset pairs placed in offsets
+                  = 0 => offsets overflowed; longest matches are present
+                   -1 => failed to match
+                 < -1 => some kind of unexpected problem
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_dfa_exec(const pcre *argument_re, const pcre_extra *extra_data,
+  const char *subject, int length, int start_offset, int options, int *offsets,
+  int offsetcount, int *workspace, int wscount)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_dfa_exec(const pcre16 *argument_re, const pcre16_extra *extra_data,
+  PCRE_SPTR16 subject, int length, int start_offset, int options, int *offsets,
+  int offsetcount, int *workspace, int wscount)
+#endif
+{
+REAL_PCRE *re = (REAL_PCRE *)argument_re;
+dfa_match_data match_block;
+dfa_match_data *md = &match_block;
+BOOL utf, anchored, startline, firstline;
+const pcre_uchar *current_subject, *end_subject;
+const pcre_study_data *study = NULL;
+
+const pcre_uchar *req_char_ptr;
+const pcre_uint8 *start_bits = NULL;
+BOOL has_first_char = FALSE;
+BOOL has_req_char = FALSE;
+pcre_uchar first_char = 0;
+pcre_uchar first_char2 = 0;
+pcre_uchar req_char = 0;
+pcre_uchar req_char2 = 0;
+int newline;
+
+/* Plausibility checks */
+
+if ((options & ~PUBLIC_DFA_EXEC_OPTIONS) != 0) return PCRE_ERROR_BADOPTION;
+if (re == NULL || subject == NULL || workspace == NULL ||
+   (offsets == NULL && offsetcount > 0)) return PCRE_ERROR_NULL;
+if (offsetcount < 0) return PCRE_ERROR_BADCOUNT;
+if (wscount < 20) return PCRE_ERROR_DFA_WSSIZE;
+if (start_offset < 0 || start_offset > length) return PCRE_ERROR_BADOFFSET;
+
+/* Check that the first field in the block is the magic number. If it is not,
+return with PCRE_ERROR_BADMAGIC. However, if the magic number is equal to
+REVERSED_MAGIC_NUMBER we return with PCRE_ERROR_BADENDIANNESS, which
+means that the pattern is likely compiled with different endianness. */
+
+if (re->magic_number != MAGIC_NUMBER)
+  return re->magic_number == REVERSED_MAGIC_NUMBER?
+    PCRE_ERROR_BADENDIANNESS:PCRE_ERROR_BADMAGIC;
+if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
+
+/* If restarting after a partial match, do some sanity checks on the contents
+of the workspace. */
+
+if ((options & PCRE_DFA_RESTART) != 0)
+  {
+  if ((workspace[0] & (-2)) != 0 || workspace[1] < 1 ||
+    workspace[1] > (wscount - 2)/INTS_PER_STATEBLOCK)
+      return PCRE_ERROR_DFA_BADRESTART;
+  }
+
+/* Set up study, callout, and table data */
+
+md->tables = re->tables;
+md->callout_data = NULL;
+
+if (extra_data != NULL)
+  {
+  unsigned int flags = extra_data->flags;
+  if ((flags & PCRE_EXTRA_STUDY_DATA) != 0)
+    study = (const pcre_study_data *)extra_data->study_data;
+  if ((flags & PCRE_EXTRA_MATCH_LIMIT) != 0) return PCRE_ERROR_DFA_UMLIMIT;
+  if ((flags & PCRE_EXTRA_MATCH_LIMIT_RECURSION) != 0)
+    return PCRE_ERROR_DFA_UMLIMIT;
+  if ((flags & PCRE_EXTRA_CALLOUT_DATA) != 0)
+    md->callout_data = extra_data->callout_data;
+  if ((flags & PCRE_EXTRA_TABLES) != 0)
+    md->tables = extra_data->tables;
+  }
+
+/* Set some local values */
+
+current_subject = (const pcre_uchar *)subject + start_offset;
+end_subject = (const pcre_uchar *)subject + length;
+req_char_ptr = current_subject - 1;
+
+#ifdef SUPPORT_UTF
+/* PCRE_UTF16 has the same value as PCRE_UTF8. */
+utf = (re->options & PCRE_UTF8) != 0;
+#else
+utf = FALSE;
+#endif
+
+anchored = (options & (PCRE_ANCHORED|PCRE_DFA_RESTART)) != 0 ||
+  (re->options & PCRE_ANCHORED) != 0;
+
+/* The remaining fixed data for passing around. */
+
+md->start_code = (const pcre_uchar *)argument_re +
+    re->name_table_offset + re->name_count * re->name_entry_size;
+md->start_subject = (const pcre_uchar *)subject;
+md->end_subject = end_subject;
+md->start_offset = start_offset;
+md->moptions = options;
+md->poptions = re->options;
+
+/* If the BSR option is not set at match time, copy what was set
+at compile time. */
+
+if ((md->moptions & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)) == 0)
+  {
+  if ((re->options & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)) != 0)
+    md->moptions |= re->options & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE);
+#ifdef BSR_ANYCRLF
+  else md->moptions |= PCRE_BSR_ANYCRLF;
+#endif
+  }
+
+/* Handle different types of newline. The three bits give eight cases. If
+nothing is set at run time, whatever was used at compile time applies. */
+
+switch ((((options & PCRE_NEWLINE_BITS) == 0)? re->options : (pcre_uint32)options) &
+         PCRE_NEWLINE_BITS)
+  {
+  case 0: newline = NEWLINE; break;   /* Compile-time default */
+  case PCRE_NEWLINE_CR: newline = CHAR_CR; break;
+  case PCRE_NEWLINE_LF: newline = CHAR_NL; break;
+  case PCRE_NEWLINE_CR+
+       PCRE_NEWLINE_LF: newline = (CHAR_CR << 8) | CHAR_NL; break;
+  case PCRE_NEWLINE_ANY: newline = -1; break;
+  case PCRE_NEWLINE_ANYCRLF: newline = -2; break;
+  default: return PCRE_ERROR_BADNEWLINE;
+  }
+
+if (newline == -2)
+  {
+  md->nltype = NLTYPE_ANYCRLF;
+  }
+else if (newline < 0)
+  {
+  md->nltype = NLTYPE_ANY;
+  }
+else
+  {
+  md->nltype = NLTYPE_FIXED;
+  if (newline > 255)
+    {
+    md->nllen = 2;
+    md->nl[0] = (newline >> 8) & 255;
+    md->nl[1] = newline & 255;
+    }
+  else
+    {
+    md->nllen = 1;
+    md->nl[0] = newline;
+    }
+  }
+
+/* Check a UTF-8 string if required. Unfortunately there's no way of passing
+back the character offset. */
+
+#ifdef SUPPORT_UTF
+if (utf && (options & PCRE_NO_UTF8_CHECK) == 0)
+  {
+  int erroroffset;
+  int errorcode = PRIV(valid_utf)((pcre_uchar *)subject, length, &erroroffset);
+  if (errorcode != 0)
+    {
+    if (offsetcount >= 2)
+      {
+      offsets[0] = erroroffset;
+      offsets[1] = errorcode;
+      }
+    return (errorcode <= PCRE_UTF8_ERR5 && (options & PCRE_PARTIAL_HARD) != 0)?
+      PCRE_ERROR_SHORTUTF8 : PCRE_ERROR_BADUTF8;
+    }
+  if (start_offset > 0 && start_offset < length &&
+        NOT_FIRSTCHAR(((PCRE_PUCHAR)subject)[start_offset]))
+    return PCRE_ERROR_BADUTF8_OFFSET;
+  }
+#endif
+
+/* If the exec call supplied NULL for tables, use the inbuilt ones. This
+is a feature that makes it possible to save compiled regex and re-use them
+in other programs later. */
+
+if (md->tables == NULL) md->tables = PRIV(default_tables);
+
+/* The "must be at the start of a line" flags are used in a loop when finding
+where to start. */
+
+startline = (re->flags & PCRE_STARTLINE) != 0;
+firstline = (re->options & PCRE_FIRSTLINE) != 0;
+
+/* Set up the first character to match, if available. The first_byte value is
+never set for an anchored regular expression, but the anchoring may be forced
+at run time, so we have to test for anchoring. The first char may be unset for
+an unanchored pattern, of course. If there's no first char and the pattern was
+studied, there may be a bitmap of possible first characters. */
+
+if (!anchored)
+  {
+  if ((re->flags & PCRE_FIRSTSET) != 0)
+    {
+    has_first_char = TRUE;
+    first_char = first_char2 = (pcre_uchar)(re->first_char);
+    if ((re->flags & PCRE_FCH_CASELESS) != 0)
+      {
+      first_char2 = TABLE_GET(first_char, md->tables + fcc_offset, first_char);
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+      if (utf && first_char > 127)
+        first_char2 = UCD_OTHERCASE(first_char);
+#endif
+      }
+    }
+  else
+    {
+    if (!startline && study != NULL &&
+         (study->flags & PCRE_STUDY_MAPPED) != 0)
+      start_bits = study->start_bits;
+    }
+  }
+
+/* For anchored or unanchored matches, there may be a "last known required
+character" set. */
+
+if ((re->flags & PCRE_REQCHSET) != 0)
+  {
+  has_req_char = TRUE;
+  req_char = req_char2 = (pcre_uchar)(re->req_char);
+  if ((re->flags & PCRE_RCH_CASELESS) != 0)
+    {
+    req_char2 = TABLE_GET(req_char, md->tables + fcc_offset, req_char);
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+    if (utf && req_char > 127)
+      req_char2 = UCD_OTHERCASE(req_char);
+#endif
+    }
+  }
+
+/* Call the main matching function, looping for a non-anchored regex after a
+failed match. If not restarting, perform certain optimizations at the start of
+a match. */
+
+for (;;)
+  {
+  int rc;
+
+  if ((options & PCRE_DFA_RESTART) == 0)
+    {
+    const pcre_uchar *save_end_subject = end_subject;
+
+    /* If firstline is TRUE, the start of the match is constrained to the first
+    line of a multiline string. Implement this by temporarily adjusting
+    end_subject so that we stop scanning at a newline. If the match fails at
+    the newline, later code breaks this loop. */
+
+    if (firstline)
+      {
+      PCRE_PUCHAR t = current_subject;
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+        while (t < md->end_subject && !IS_NEWLINE(t))
+          {
+          t++;
+          ACROSSCHAR(t < end_subject, *t, t++);
+          }
+        }
+      else
+#endif
+      while (t < md->end_subject && !IS_NEWLINE(t)) t++;
+      end_subject = t;
+      }
+
+    /* There are some optimizations that avoid running the match if a known
+    starting point is not found. However, there is an option that disables
+    these, for testing and for ensuring that all callouts do actually occur.
+    The option can be set in the regex by (*NO_START_OPT) or passed in
+    match-time options. */
+
+    if (((options | re->options) & PCRE_NO_START_OPTIMIZE) == 0)
+      {
+      /* Advance to a known first char. */
+
+      if (has_first_char)
+        {
+        if (first_char != first_char2)
+          while (current_subject < end_subject &&
+              *current_subject != first_char && *current_subject != first_char2)
+            current_subject++;
+        else
+          while (current_subject < end_subject &&
+                 *current_subject != first_char)
+            current_subject++;
+        }
+
+      /* Or to just after a linebreak for a multiline match if possible */
+
+      else if (startline)
+        {
+        if (current_subject > md->start_subject + start_offset)
+          {
+#ifdef SUPPORT_UTF
+          if (utf)
+            {
+            while (current_subject < end_subject &&
+                   !WAS_NEWLINE(current_subject))
+              {
+              current_subject++;
+              ACROSSCHAR(current_subject < end_subject, *current_subject,
+                current_subject++);
+              }
+            }
+          else
+#endif
+          while (current_subject < end_subject && !WAS_NEWLINE(current_subject))
+            current_subject++;
+
+          /* If we have just passed a CR and the newline option is ANY or
+          ANYCRLF, and we are now at a LF, advance the match position by one
+          more character. */
+
+          if (current_subject[-1] == CHAR_CR &&
+               (md->nltype == NLTYPE_ANY || md->nltype == NLTYPE_ANYCRLF) &&
+               current_subject < end_subject &&
+               *current_subject == CHAR_NL)
+            current_subject++;
+          }
+        }
+
+      /* Or to a non-unique first char after study */
+
+      else if (start_bits != NULL)
+        {
+        while (current_subject < end_subject)
+          {
+          register unsigned int c = *current_subject;
+#ifndef COMPILE_PCRE8
+          if (c > 255) c = 255;
+#endif
+          if ((start_bits[c/8] & (1 << (c&7))) == 0)
+            {
+            current_subject++;
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+            /* In non 8-bit mode, the iteration will stop for
+            characters > 255 at the beginning or not stop at all. */
+            if (utf)
+              ACROSSCHAR(current_subject < end_subject, *current_subject,
+                current_subject++);
+#endif
+            }
+          else break;
+          }
+        }
+      }
+
+    /* Restore fudged end_subject */
+
+    end_subject = save_end_subject;
+
+    /* The following two optimizations are disabled for partial matching or if
+    disabling is explicitly requested (and of course, by the test above, this
+    code is not obeyed when restarting after a partial match). */
+
+    if (((options | re->options) & PCRE_NO_START_OPTIMIZE) == 0 &&
+        (options & (PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT)) == 0)
+      {
+      /* If the pattern was studied, a minimum subject length may be set. This
+      is a lower bound; no actual string of that length may actually match the
+      pattern. Although the value is, strictly, in characters, we treat it as
+      bytes to avoid spending too much time in this optimization. */
+
+      if (study != NULL && (study->flags & PCRE_STUDY_MINLEN) != 0 &&
+          (pcre_uint32)(end_subject - current_subject) < study->minlength)
+        return PCRE_ERROR_NOMATCH;
+
+      /* If req_char is set, we know that that character must appear in the
+      subject for the match to succeed. If the first character is set, req_char
+      must be later in the subject; otherwise the test starts at the match
+      point. This optimization can save a huge amount of work in patterns with
+      nested unlimited repeats that aren't going to match. Writing separate
+      code for cased/caseless versions makes it go faster, as does using an
+      autoincrement and backing off on a match.
+
+      HOWEVER: when the subject string is very, very long, searching to its end
+      can take a long time, and give bad performance on quite ordinary
+      patterns. This showed up when somebody was matching /^C/ on a 32-megabyte
+      string... so we don't do this when the string is sufficiently long. */
+
+      if (has_req_char && end_subject - current_subject < REQ_BYTE_MAX)
+        {
+        register PCRE_PUCHAR p = current_subject + (has_first_char? 1:0);
+
+        /* We don't need to repeat the search if we haven't yet reached the
+        place we found it at last time. */
+
+        if (p > req_char_ptr)
+          {
+          if (req_char != req_char2)
+            {
+            while (p < end_subject)
+              {
+              register int pp = *p++;
+              if (pp == req_char || pp == req_char2) { p--; break; }
+              }
+            }
+          else
+            {
+            while (p < end_subject)
+              {
+              if (*p++ == req_char) { p--; break; }
+              }
+            }
+
+          /* If we can't find the required character, break the matching loop,
+          which will cause a return or PCRE_ERROR_NOMATCH. */
+
+          if (p >= end_subject) break;
+
+          /* If we have found the required character, save the point where we
+          found it, so that we don't search again next time round the loop if
+          the start hasn't passed this character yet. */
+
+          req_char_ptr = p;
+          }
+        }
+      }
+    }   /* End of optimizations that are done when not restarting */
+
+  /* OK, now we can do the business */
+
+  md->start_used_ptr = current_subject;
+  md->recursive = NULL;
+
+  rc = internal_dfa_exec(
+    md,                                /* fixed match data */
+    md->start_code,                    /* this subexpression's code */
+    current_subject,                   /* where we currently are */
+    start_offset,                      /* start offset in subject */
+    offsets,                           /* offset vector */
+    offsetcount,                       /* size of same */
+    workspace,                         /* workspace vector */
+    wscount,                           /* size of same */
+    0);                                /* function recurse level */
+
+  /* Anything other than "no match" means we are done, always; otherwise, carry
+  on only if not anchored. */
+
+  if (rc != PCRE_ERROR_NOMATCH || anchored) return rc;
+
+  /* Advance to the next subject character unless we are at the end of a line
+  and firstline is set. */
+
+  if (firstline && IS_NEWLINE(current_subject)) break;
+  current_subject++;
+#ifdef SUPPORT_UTF
+  if (utf)
+    {
+    ACROSSCHAR(current_subject < end_subject, *current_subject,
+      current_subject++);
+    }
+#endif
+  if (current_subject > end_subject) break;
+
+  /* If we have just passed a CR and we are now at a LF, and the pattern does
+  not contain any explicit matches for \r or \n, and the newline option is CRLF
+  or ANY or ANYCRLF, advance the match position by one more character. */
+
+  if (current_subject[-1] == CHAR_CR &&
+      current_subject < end_subject &&
+      *current_subject == CHAR_NL &&
+      (re->flags & PCRE_HASCRORLF) == 0 &&
+        (md->nltype == NLTYPE_ANY ||
+         md->nltype == NLTYPE_ANYCRLF ||
+         md->nllen == 2))
+    current_subject++;
+
+  }   /* "Bumpalong" loop */
+
+return PCRE_ERROR_NOMATCH;
+}
+
+/* End of pcre_dfa_exec.c */
diff --git a/8.31/pcre_exec.c b/8.31/pcre_exec.c
new file mode 100644
index 0000000..f73b942
--- /dev/null
+++ b/8.31/pcre_exec.c
@@ -0,0 +1,7149 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+/* This module contains pcre_exec(), the externally visible function that does
+pattern matching using an NFA algorithm, trying to mimic Perl as closely as
+possible. There are also some static supporting functions. */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#define NLBLOCK md             /* Block containing newline information */
+#define PSSTART start_subject  /* Field containing processed string start */
+#define PSEND   end_subject    /* Field containing processed string end */
+
+#include "pcre_internal.h"
+
+/* Undefine some potentially clashing cpp symbols */
+
+#undef min
+#undef max
+
+/* Values for setting in md->match_function_type to indicate two special types
+of call to match(). We do it this way to save on using another stack variable,
+as stack usage is to be discouraged. */
+
+#define MATCH_CONDASSERT     1  /* Called to check a condition assertion */
+#define MATCH_CBEGROUP       2  /* Could-be-empty unlimited repeat group */
+
+/* Non-error returns from the match() function. Error returns are externally
+defined PCRE_ERROR_xxx codes, which are all negative. */
+
+#define MATCH_MATCH        1
+#define MATCH_NOMATCH      0
+
+/* Special internal returns from the match() function. Make them sufficiently
+negative to avoid the external error codes. */
+
+#define MATCH_ACCEPT       (-999)
+#define MATCH_COMMIT       (-998)
+#define MATCH_KETRPOS      (-997)
+#define MATCH_ONCE         (-996)
+#define MATCH_PRUNE        (-995)
+#define MATCH_SKIP         (-994)
+#define MATCH_SKIP_ARG     (-993)
+#define MATCH_THEN         (-992)
+
+/* Maximum number of ints of offset to save on the stack for recursive calls.
+If the offset vector is bigger, malloc is used. This should be a multiple of 3,
+because the offset vector is always a multiple of 3 long. */
+
+#define REC_STACK_SAVE_MAX 30
+
+/* Min and max values for the common repeats; for the maxima, 0 => infinity */
+
+static const char rep_min[] = { 0, 0, 1, 1, 0, 0 };
+static const char rep_max[] = { 0, 0, 0, 0, 1, 1 };
+
+
+
+#ifdef PCRE_DEBUG
+/*************************************************
+*        Debugging function to print chars       *
+*************************************************/
+
+/* Print a sequence of chars in printable format, stopping at the end of the
+subject if the requested.
+
+Arguments:
+  p           points to characters
+  length      number to print
+  is_subject  TRUE if printing from within md->start_subject
+  md          pointer to matching data block, if is_subject is TRUE
+
+Returns:     nothing
+*/
+
+static void
+pchars(const pcre_uchar *p, int length, BOOL is_subject, match_data *md)
+{
+unsigned int c;
+if (is_subject && length > md->end_subject - p) length = md->end_subject - p;
+while (length-- > 0)
+  if (isprint(c = *(p++))) printf("%c", c); else printf("\\x%02x", c);
+}
+#endif
+
+
+
+/*************************************************
+*          Match a back-reference                *
+*************************************************/
+
+/* Normally, if a back reference hasn't been set, the length that is passed is
+negative, so the match always fails. However, in JavaScript compatibility mode,
+the length passed is zero. Note that in caseless UTF-8 mode, the number of
+subject bytes matched may be different to the number of reference bytes.
+
+Arguments:
+  offset      index into the offset vector
+  eptr        pointer into the subject
+  length      length of reference to be matched (number of bytes)
+  md          points to match data block
+  caseless    TRUE if caseless
+
+Returns:      >= 0 the number of subject bytes matched
+              -1 no match
+              -2 partial match; always given if at end subject
+*/
+
+static int
+match_ref(int offset, register PCRE_PUCHAR eptr, int length, match_data *md,
+  BOOL caseless)
+{
+PCRE_PUCHAR eptr_start = eptr;
+register PCRE_PUCHAR p = md->start_subject + md->offset_vector[offset];
+
+#ifdef PCRE_DEBUG
+if (eptr >= md->end_subject)
+  printf("matching subject <null>");
+else
+  {
+  printf("matching subject ");
+  pchars(eptr, length, TRUE, md);
+  }
+printf(" against backref ");
+pchars(p, length, FALSE, md);
+printf("\n");
+#endif
+
+/* Always fail if reference not set (and not JavaScript compatible - in that
+case the length is passed as zero). */
+
+if (length < 0) return -1;
+
+/* Separate the caseless case for speed. In UTF-8 mode we can only do this
+properly if Unicode properties are supported. Otherwise, we can check only
+ASCII characters. */
+
+if (caseless)
+  {
+#ifdef SUPPORT_UTF
+#ifdef SUPPORT_UCP
+  if (md->utf)
+    {
+    /* Match characters up to the end of the reference. NOTE: the number of
+    bytes matched may differ, because there are some characters whose upper and
+    lower case versions code as different numbers of bytes. For example, U+023A
+    (2 bytes in UTF-8) is the upper case version of U+2C65 (3 bytes in UTF-8);
+    a sequence of 3 of the former uses 6 bytes, as does a sequence of two of
+    the latter. It is important, therefore, to check the length along the
+    reference, not along the subject (earlier code did this wrong). */
+
+    PCRE_PUCHAR endptr = p + length;
+    while (p < endptr)
+      {
+      int c, d;
+      if (eptr >= md->end_subject) return -2;   /* Partial match */
+      GETCHARINC(c, eptr);
+      GETCHARINC(d, p);
+      if (c != d && c != UCD_OTHERCASE(d)) return -1;
+      }
+    }
+  else
+#endif
+#endif
+
+  /* The same code works when not in UTF-8 mode and in UTF-8 mode when there
+  is no UCP support. */
+    {
+    while (length-- > 0)
+      {
+      if (eptr >= md->end_subject) return -2;   /* Partial match */
+      if (TABLE_GET(*p, md->lcc, *p) != TABLE_GET(*eptr, md->lcc, *eptr)) return -1;
+      p++;
+      eptr++;
+      }
+    }
+  }
+
+/* In the caseful case, we can just compare the bytes, whether or not we
+are in UTF-8 mode. */
+
+else
+  {
+  while (length-- > 0)
+    {
+    if (eptr >= md->end_subject) return -2;   /* Partial match */
+    if (*p++ != *eptr++) return -1;
+    }
+  }
+
+return (int)(eptr - eptr_start);
+}
+
+
+
+/***************************************************************************
+****************************************************************************
+                   RECURSION IN THE match() FUNCTION
+
+The match() function is highly recursive, though not every recursive call
+increases the recursive depth. Nevertheless, some regular expressions can cause
+it to recurse to a great depth. I was writing for Unix, so I just let it call
+itself recursively. This uses the stack for saving everything that has to be
+saved for a recursive call. On Unix, the stack can be large, and this works
+fine.
+
+It turns out that on some non-Unix-like systems there are problems with
+programs that use a lot of stack. (This despite the fact that every last chip
+has oodles of memory these days, and techniques for extending the stack have
+been known for decades.) So....
+
+There is a fudge, triggered by defining NO_RECURSE, which avoids recursive
+calls by keeping local variables that need to be preserved in blocks of memory
+obtained from malloc() instead instead of on the stack. Macros are used to
+achieve this so that the actual code doesn't look very different to what it
+always used to.
+
+The original heap-recursive code used longjmp(). However, it seems that this
+can be very slow on some operating systems. Following a suggestion from Stan
+Switzer, the use of longjmp() has been abolished, at the cost of having to
+provide a unique number for each call to RMATCH. There is no way of generating
+a sequence of numbers at compile time in C. I have given them names, to make
+them stand out more clearly.
+
+Crude tests on x86 Linux show a small speedup of around 5-8%. However, on
+FreeBSD, avoiding longjmp() more than halves the time taken to run the standard
+tests. Furthermore, not using longjmp() means that local dynamic variables
+don't have indeterminate values; this has meant that the frame size can be
+reduced because the result can be "passed back" by straight setting of the
+variable instead of being passed in the frame.
+****************************************************************************
+***************************************************************************/
+
+/* Numbers for RMATCH calls. When this list is changed, the code at HEAP_RETURN
+below must be updated in sync.  */
+
+enum { RM1=1, RM2,  RM3,  RM4,  RM5,  RM6,  RM7,  RM8,  RM9,  RM10,
+       RM11,  RM12, RM13, RM14, RM15, RM16, RM17, RM18, RM19, RM20,
+       RM21,  RM22, RM23, RM24, RM25, RM26, RM27, RM28, RM29, RM30,
+       RM31,  RM32, RM33, RM34, RM35, RM36, RM37, RM38, RM39, RM40,
+       RM41,  RM42, RM43, RM44, RM45, RM46, RM47, RM48, RM49, RM50,
+       RM51,  RM52, RM53, RM54, RM55, RM56, RM57, RM58, RM59, RM60,
+       RM61,  RM62, RM63, RM64, RM65, RM66 };
+
+/* These versions of the macros use the stack, as normal. There are debugging
+versions and production versions. Note that the "rw" argument of RMATCH isn't
+actually used in this definition. */
+
+#ifndef NO_RECURSE
+#define REGISTER register
+
+#ifdef PCRE_DEBUG
+#define RMATCH(ra,rb,rc,rd,re,rw) \
+  { \
+  printf("match() called in line %d\n", __LINE__); \
+  rrc = match(ra,rb,mstart,rc,rd,re,rdepth+1); \
+  printf("to line %d\n", __LINE__); \
+  }
+#define RRETURN(ra) \
+  { \
+  printf("match() returned %d from line %d ", ra, __LINE__); \
+  return ra; \
+  }
+#else
+#define RMATCH(ra,rb,rc,rd,re,rw) \
+  rrc = match(ra,rb,mstart,rc,rd,re,rdepth+1)
+#define RRETURN(ra) return ra
+#endif
+
+#else
+
+
+/* These versions of the macros manage a private stack on the heap. Note that
+the "rd" argument of RMATCH isn't actually used in this definition. It's the md
+argument of match(), which never changes. */
+
+#define REGISTER
+
+#define RMATCH(ra,rb,rc,rd,re,rw)\
+  {\
+  heapframe *newframe = frame->Xnextframe;\
+  if (newframe == NULL)\
+    {\
+    newframe = (heapframe *)(PUBL(stack_malloc))(sizeof(heapframe));\
+    if (newframe == NULL) RRETURN(PCRE_ERROR_NOMEMORY);\
+    newframe->Xnextframe = NULL;\
+    frame->Xnextframe = newframe;\
+    }\
+  frame->Xwhere = rw;\
+  newframe->Xeptr = ra;\
+  newframe->Xecode = rb;\
+  newframe->Xmstart = mstart;\
+  newframe->Xoffset_top = rc;\
+  newframe->Xeptrb = re;\
+  newframe->Xrdepth = frame->Xrdepth + 1;\
+  newframe->Xprevframe = frame;\
+  frame = newframe;\
+  DPRINTF(("restarting from line %d\n", __LINE__));\
+  goto HEAP_RECURSE;\
+  L_##rw:\
+  DPRINTF(("jumped back to line %d\n", __LINE__));\
+  }
+
+#define RRETURN(ra)\
+  {\
+  heapframe *oldframe = frame;\
+  frame = oldframe->Xprevframe;\
+  if (frame != NULL)\
+    {\
+    rrc = ra;\
+    goto HEAP_RETURN;\
+    }\
+  return ra;\
+  }
+
+
+/* Structure for remembering the local variables in a private frame */
+
+typedef struct heapframe {
+  struct heapframe *Xprevframe;
+  struct heapframe *Xnextframe;
+
+  /* Function arguments that may change */
+
+  PCRE_PUCHAR Xeptr;
+  const pcre_uchar *Xecode;
+  PCRE_PUCHAR Xmstart;
+  int Xoffset_top;
+  eptrblock *Xeptrb;
+  unsigned int Xrdepth;
+
+  /* Function local variables */
+
+  PCRE_PUCHAR Xcallpat;
+#ifdef SUPPORT_UTF
+  PCRE_PUCHAR Xcharptr;
+#endif
+  PCRE_PUCHAR Xdata;
+  PCRE_PUCHAR Xnext;
+  PCRE_PUCHAR Xpp;
+  PCRE_PUCHAR Xprev;
+  PCRE_PUCHAR Xsaved_eptr;
+
+  recursion_info Xnew_recursive;
+
+  BOOL Xcur_is_word;
+  BOOL Xcondition;
+  BOOL Xprev_is_word;
+
+#ifdef SUPPORT_UCP
+  int Xprop_type;
+  int Xprop_value;
+  int Xprop_fail_result;
+  int Xoclength;
+  pcre_uchar Xocchars[6];
+#endif
+
+  int Xcodelink;
+  int Xctype;
+  unsigned int Xfc;
+  int Xfi;
+  int Xlength;
+  int Xmax;
+  int Xmin;
+  int Xnumber;
+  int Xoffset;
+  int Xop;
+  int Xsave_capture_last;
+  int Xsave_offset1, Xsave_offset2, Xsave_offset3;
+  int Xstacksave[REC_STACK_SAVE_MAX];
+
+  eptrblock Xnewptrb;
+
+  /* Where to jump back to */
+
+  int Xwhere;
+
+} heapframe;
+
+#endif
+
+
+/***************************************************************************
+***************************************************************************/
+
+
+
+/*************************************************
+*         Match from current position            *
+*************************************************/
+
+/* This function is called recursively in many circumstances. Whenever it
+returns a negative (error) response, the outer incarnation must also return the
+same response. */
+
+/* These macros pack up tests that are used for partial matching, and which
+appear several times in the code. We set the "hit end" flag if the pointer is
+at the end of the subject and also past the start of the subject (i.e.
+something has been matched). For hard partial matching, we then return
+immediately. The second one is used when we already know we are past the end of
+the subject. */
+
+#define CHECK_PARTIAL()\
+  if (md->partial != 0 && eptr >= md->end_subject && \
+      eptr > md->start_used_ptr) \
+    { \
+    md->hitend = TRUE; \
+    if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL); \
+    }
+
+#define SCHECK_PARTIAL()\
+  if (md->partial != 0 && eptr > md->start_used_ptr) \
+    { \
+    md->hitend = TRUE; \
+    if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL); \
+    }
+
+
+/* Performance note: It might be tempting to extract commonly used fields from
+the md structure (e.g. utf, end_subject) into individual variables to improve
+performance. Tests using gcc on a SPARC disproved this; in the first case, it
+made performance worse.
+
+Arguments:
+   eptr        pointer to current character in subject
+   ecode       pointer to current position in compiled code
+   mstart      pointer to the current match start position (can be modified
+                 by encountering \K)
+   offset_top  current top pointer
+   md          pointer to "static" info for the match
+   eptrb       pointer to chain of blocks containing eptr at start of
+                 brackets - for testing for empty matches
+   rdepth      the recursion depth
+
+Returns:       MATCH_MATCH if matched            )  these values are >= 0
+               MATCH_NOMATCH if failed to match  )
+               a negative MATCH_xxx value for PRUNE, SKIP, etc
+               a negative PCRE_ERROR_xxx value if aborted by an error condition
+                 (e.g. stopped by repeated call or recursion limit)
+*/
+
+static int
+match(REGISTER PCRE_PUCHAR eptr, REGISTER const pcre_uchar *ecode,
+  PCRE_PUCHAR mstart, int offset_top, match_data *md, eptrblock *eptrb,
+  unsigned int rdepth)
+{
+/* These variables do not need to be preserved over recursion in this function,
+so they can be ordinary variables in all cases. Mark some of them with
+"register" because they are used a lot in loops. */
+
+register int  rrc;         /* Returns from recursive calls */
+register int  i;           /* Used for loops not involving calls to RMATCH() */
+register unsigned int c;   /* Character values not kept over RMATCH() calls */
+register BOOL utf;         /* Local copy of UTF flag for speed */
+
+BOOL minimize, possessive; /* Quantifier options */
+BOOL caseless;
+int condcode;
+
+/* When recursion is not being used, all "local" variables that have to be
+preserved over calls to RMATCH() are part of a "frame". We set up the top-level
+frame on the stack here; subsequent instantiations are obtained from the heap
+whenever RMATCH() does a "recursion". See the macro definitions above. Putting
+the top-level on the stack rather than malloc-ing them all gives a performance
+boost in many cases where there is not much "recursion". */
+
+#ifdef NO_RECURSE
+heapframe *frame = (heapframe *)md->match_frames_base;
+
+/* Copy in the original argument variables */
+
+frame->Xeptr = eptr;
+frame->Xecode = ecode;
+frame->Xmstart = mstart;
+frame->Xoffset_top = offset_top;
+frame->Xeptrb = eptrb;
+frame->Xrdepth = rdepth;
+
+/* This is where control jumps back to to effect "recursion" */
+
+HEAP_RECURSE:
+
+/* Macros make the argument variables come from the current frame */
+
+#define eptr               frame->Xeptr
+#define ecode              frame->Xecode
+#define mstart             frame->Xmstart
+#define offset_top         frame->Xoffset_top
+#define eptrb              frame->Xeptrb
+#define rdepth             frame->Xrdepth
+
+/* Ditto for the local variables */
+
+#ifdef SUPPORT_UTF
+#define charptr            frame->Xcharptr
+#endif
+#define callpat            frame->Xcallpat
+#define codelink           frame->Xcodelink
+#define data               frame->Xdata
+#define next               frame->Xnext
+#define pp                 frame->Xpp
+#define prev               frame->Xprev
+#define saved_eptr         frame->Xsaved_eptr
+
+#define new_recursive      frame->Xnew_recursive
+
+#define cur_is_word        frame->Xcur_is_word
+#define condition          frame->Xcondition
+#define prev_is_word       frame->Xprev_is_word
+
+#ifdef SUPPORT_UCP
+#define prop_type          frame->Xprop_type
+#define prop_value         frame->Xprop_value
+#define prop_fail_result   frame->Xprop_fail_result
+#define oclength           frame->Xoclength
+#define occhars            frame->Xocchars
+#endif
+
+#define ctype              frame->Xctype
+#define fc                 frame->Xfc
+#define fi                 frame->Xfi
+#define length             frame->Xlength
+#define max                frame->Xmax
+#define min                frame->Xmin
+#define number             frame->Xnumber
+#define offset             frame->Xoffset
+#define op                 frame->Xop
+#define save_capture_last  frame->Xsave_capture_last
+#define save_offset1       frame->Xsave_offset1
+#define save_offset2       frame->Xsave_offset2
+#define save_offset3       frame->Xsave_offset3
+#define stacksave          frame->Xstacksave
+
+#define newptrb            frame->Xnewptrb
+
+/* When recursion is being used, local variables are allocated on the stack and
+get preserved during recursion in the normal way. In this environment, fi and
+i, and fc and c, can be the same variables. */
+
+#else         /* NO_RECURSE not defined */
+#define fi i
+#define fc c
+
+/* Many of the following variables are used only in small blocks of the code.
+My normal style of coding would have declared them within each of those blocks.
+However, in order to accommodate the version of this code that uses an external
+"stack" implemented on the heap, it is easier to declare them all here, so the
+declarations can be cut out in a block. The only declarations within blocks
+below are for variables that do not have to be preserved over a recursive call
+to RMATCH(). */
+
+#ifdef SUPPORT_UTF
+const pcre_uchar *charptr;
+#endif
+const pcre_uchar *callpat;
+const pcre_uchar *data;
+const pcre_uchar *next;
+PCRE_PUCHAR       pp;
+const pcre_uchar *prev;
+PCRE_PUCHAR       saved_eptr;
+
+recursion_info new_recursive;
+
+BOOL cur_is_word;
+BOOL condition;
+BOOL prev_is_word;
+
+#ifdef SUPPORT_UCP
+int prop_type;
+int prop_value;
+int prop_fail_result;
+int oclength;
+pcre_uchar occhars[6];
+#endif
+
+int codelink;
+int ctype;
+int length;
+int max;
+int min;
+int number;
+int offset;
+int op;
+int save_capture_last;
+int save_offset1, save_offset2, save_offset3;
+int stacksave[REC_STACK_SAVE_MAX];
+
+eptrblock newptrb;
+
+/* There is a special fudge for calling match() in a way that causes it to
+measure the size of its basic stack frame when the stack is being used for
+recursion. The second argument (ecode) being NULL triggers this behaviour. It
+cannot normally ever be NULL. The return is the negated value of the frame
+size. */
+
+if (ecode == NULL)
+  {
+  if (rdepth == 0)
+    return match((PCRE_PUCHAR)&rdepth, NULL, NULL, 0, NULL, NULL, 1);
+  else
+    {
+    int len = (char *)&rdepth - (char *)eptr;
+    return (len > 0)? -len : len;
+    }
+  }
+#endif     /* NO_RECURSE */
+
+/* To save space on the stack and in the heap frame, I have doubled up on some
+of the local variables that are used only in localised parts of the code, but
+still need to be preserved over recursive calls of match(). These macros define
+the alternative names that are used. */
+
+#define allow_zero    cur_is_word
+#define cbegroup      condition
+#define code_offset   codelink
+#define condassert    condition
+#define matched_once  prev_is_word
+#define foc           number
+#define save_mark     data
+
+/* These statements are here to stop the compiler complaining about unitialized
+variables. */
+
+#ifdef SUPPORT_UCP
+prop_value = 0;
+prop_fail_result = 0;
+#endif
+
+
+/* This label is used for tail recursion, which is used in a few cases even
+when NO_RECURSE is not defined, in order to reduce the amount of stack that is
+used. Thanks to Ian Taylor for noticing this possibility and sending the
+original patch. */
+
+TAIL_RECURSE:
+
+/* OK, now we can get on with the real code of the function. Recursive calls
+are specified by the macro RMATCH and RRETURN is used to return. When
+NO_RECURSE is *not* defined, these just turn into a recursive call to match()
+and a "return", respectively (possibly with some debugging if PCRE_DEBUG is
+defined). However, RMATCH isn't like a function call because it's quite a
+complicated macro. It has to be used in one particular way. This shouldn't,
+however, impact performance when true recursion is being used. */
+
+#ifdef SUPPORT_UTF
+utf = md->utf;       /* Local copy of the flag */
+#else
+utf = FALSE;
+#endif
+
+/* First check that we haven't called match() too many times, or that we
+haven't exceeded the recursive call limit. */
+
+if (md->match_call_count++ >= md->match_limit) RRETURN(PCRE_ERROR_MATCHLIMIT);
+if (rdepth >= md->match_limit_recursion) RRETURN(PCRE_ERROR_RECURSIONLIMIT);
+
+/* At the start of a group with an unlimited repeat that may match an empty
+string, the variable md->match_function_type is set to MATCH_CBEGROUP. It is
+done this way to save having to use another function argument, which would take
+up space on the stack. See also MATCH_CONDASSERT below.
+
+When MATCH_CBEGROUP is set, add the current subject pointer to the chain of
+such remembered pointers, to be checked when we hit the closing ket, in order
+to break infinite loops that match no characters. When match() is called in
+other circumstances, don't add to the chain. The MATCH_CBEGROUP feature must
+NOT be used with tail recursion, because the memory block that is used is on
+the stack, so a new one may be required for each match(). */
+
+if (md->match_function_type == MATCH_CBEGROUP)
+  {
+  newptrb.epb_saved_eptr = eptr;
+  newptrb.epb_prev = eptrb;
+  eptrb = &newptrb;
+  md->match_function_type = 0;
+  }
+
+/* Now start processing the opcodes. */
+
+for (;;)
+  {
+  minimize = possessive = FALSE;
+  op = *ecode;
+
+  switch(op)
+    {
+    case OP_MARK:
+    md->nomatch_mark = ecode + 2;
+    md->mark = NULL;    /* In case previously set by assertion */
+    RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode] + ecode[1], offset_top, md,
+      eptrb, RM55);
+    if ((rrc == MATCH_MATCH || rrc == MATCH_ACCEPT) &&
+         md->mark == NULL) md->mark = ecode + 2;
+
+    /* A return of MATCH_SKIP_ARG means that matching failed at SKIP with an
+    argument, and we must check whether that argument matches this MARK's
+    argument. It is passed back in md->start_match_ptr (an overloading of that
+    variable). If it does match, we reset that variable to the current subject
+    position and return MATCH_SKIP. Otherwise, pass back the return code
+    unaltered. */
+
+    else if (rrc == MATCH_SKIP_ARG &&
+        STRCMP_UC_UC(ecode + 2, md->start_match_ptr) == 0)
+      {
+      md->start_match_ptr = eptr;
+      RRETURN(MATCH_SKIP);
+      }
+    RRETURN(rrc);
+
+    case OP_FAIL:
+    RRETURN(MATCH_NOMATCH);
+
+    /* COMMIT overrides PRUNE, SKIP, and THEN */
+
+    case OP_COMMIT:
+    RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode], offset_top, md,
+      eptrb, RM52);
+    if (rrc != MATCH_NOMATCH && rrc != MATCH_PRUNE &&
+        rrc != MATCH_SKIP && rrc != MATCH_SKIP_ARG &&
+        rrc != MATCH_THEN)
+      RRETURN(rrc);
+    RRETURN(MATCH_COMMIT);
+
+    /* PRUNE overrides THEN */
+
+    case OP_PRUNE:
+    RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode], offset_top, md,
+      eptrb, RM51);
+    if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
+    RRETURN(MATCH_PRUNE);
+
+    case OP_PRUNE_ARG:
+    md->nomatch_mark = ecode + 2;
+    md->mark = NULL;    /* In case previously set by assertion */
+    RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode] + ecode[1], offset_top, md,
+      eptrb, RM56);
+    if ((rrc == MATCH_MATCH || rrc == MATCH_ACCEPT) &&
+         md->mark == NULL) md->mark = ecode + 2;
+    if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
+    RRETURN(MATCH_PRUNE);
+
+    /* SKIP overrides PRUNE and THEN */
+
+    case OP_SKIP:
+    RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode], offset_top, md,
+      eptrb, RM53);
+    if (rrc != MATCH_NOMATCH && rrc != MATCH_PRUNE && rrc != MATCH_THEN)
+      RRETURN(rrc);
+    md->start_match_ptr = eptr;   /* Pass back current position */
+    RRETURN(MATCH_SKIP);
+
+    /* Note that, for Perl compatibility, SKIP with an argument does NOT set
+    nomatch_mark. There is a flag that disables this opcode when re-matching a
+    pattern that ended with a SKIP for which there was not a matching MARK. */
+
+    case OP_SKIP_ARG:
+    if (md->ignore_skip_arg)
+      {
+      ecode += PRIV(OP_lengths)[*ecode] + ecode[1];
+      break;
+      }
+    RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode] + ecode[1], offset_top, md,
+      eptrb, RM57);
+    if (rrc != MATCH_NOMATCH && rrc != MATCH_PRUNE && rrc != MATCH_THEN)
+      RRETURN(rrc);
+
+    /* Pass back the current skip name by overloading md->start_match_ptr and
+    returning the special MATCH_SKIP_ARG return code. This will either be
+    caught by a matching MARK, or get to the top, where it causes a rematch
+    with the md->ignore_skip_arg flag set. */
+
+    md->start_match_ptr = ecode + 2;
+    RRETURN(MATCH_SKIP_ARG);
+
+    /* For THEN (and THEN_ARG) we pass back the address of the opcode, so that
+    the branch in which it occurs can be determined. Overload the start of
+    match pointer to do this. */
+
+    case OP_THEN:
+    RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode], offset_top, md,
+      eptrb, RM54);
+    if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+    md->start_match_ptr = ecode;
+    RRETURN(MATCH_THEN);
+
+    case OP_THEN_ARG:
+    md->nomatch_mark = ecode + 2;
+    md->mark = NULL;    /* In case previously set by assertion */
+    RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode] + ecode[1], offset_top,
+      md, eptrb, RM58);
+    if ((rrc == MATCH_MATCH || rrc == MATCH_ACCEPT) &&
+         md->mark == NULL) md->mark = ecode + 2;
+    if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+    md->start_match_ptr = ecode;
+    RRETURN(MATCH_THEN);
+
+    /* Handle an atomic group that does not contain any capturing parentheses.
+    This can be handled like an assertion. Prior to 8.13, all atomic groups
+    were handled this way. In 8.13, the code was changed as below for ONCE, so
+    that backups pass through the group and thereby reset captured values.
+    However, this uses a lot more stack, so in 8.20, atomic groups that do not
+    contain any captures generate OP_ONCE_NC, which can be handled in the old,
+    less stack intensive way.
+
+    Check the alternative branches in turn - the matching won't pass the KET
+    for this kind of subpattern. If any one branch matches, we carry on as at
+    the end of a normal bracket, leaving the subject pointer, but resetting
+    the start-of-match value in case it was changed by \K. */
+
+    case OP_ONCE_NC:
+    prev = ecode;
+    saved_eptr = eptr;
+    save_mark = md->mark;
+    do
+      {
+      RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, eptrb, RM64);
+      if (rrc == MATCH_MATCH)  /* Note: _not_ MATCH_ACCEPT */
+        {
+        mstart = md->start_match_ptr;
+        break;
+        }
+      if (rrc == MATCH_THEN)
+        {
+        next = ecode + GET(ecode,1);
+        if (md->start_match_ptr < next &&
+            (*ecode == OP_ALT || *next == OP_ALT))
+          rrc = MATCH_NOMATCH;
+        }
+
+      if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+      ecode += GET(ecode,1);
+      md->mark = save_mark;
+      }
+    while (*ecode == OP_ALT);
+
+    /* If hit the end of the group (which could be repeated), fail */
+
+    if (*ecode != OP_ONCE_NC && *ecode != OP_ALT) RRETURN(MATCH_NOMATCH);
+
+    /* Continue as from after the group, updating the offsets high water
+    mark, since extracts may have been taken. */
+
+    do ecode += GET(ecode, 1); while (*ecode == OP_ALT);
+
+    offset_top = md->end_offset_top;
+    eptr = md->end_match_ptr;
+
+    /* For a non-repeating ket, just continue at this level. This also
+    happens for a repeating ket if no characters were matched in the group.
+    This is the forcible breaking of infinite loops as implemented in Perl
+    5.005. */
+
+    if (*ecode == OP_KET || eptr == saved_eptr)
+      {
+      ecode += 1+LINK_SIZE;
+      break;
+      }
+
+    /* The repeating kets try the rest of the pattern or restart from the
+    preceding bracket, in the appropriate order. The second "call" of match()
+    uses tail recursion, to avoid using another stack frame. */
+
+    if (*ecode == OP_KETRMIN)
+      {
+      RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, eptrb, RM65);
+      if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+      ecode = prev;
+      goto TAIL_RECURSE;
+      }
+    else  /* OP_KETRMAX */
+      {
+      RMATCH(eptr, prev, offset_top, md, eptrb, RM66);
+      if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+      ecode += 1 + LINK_SIZE;
+      goto TAIL_RECURSE;
+      }
+    /* Control never gets here */
+
+    /* Handle a capturing bracket, other than those that are possessive with an
+    unlimited repeat. If there is space in the offset vector, save the current
+    subject position in the working slot at the top of the vector. We mustn't
+    change the current values of the data slot, because they may be set from a
+    previous iteration of this group, and be referred to by a reference inside
+    the group. A failure to match might occur after the group has succeeded,
+    if something later on doesn't match. For this reason, we need to restore
+    the working value and also the values of the final offsets, in case they
+    were set by a previous iteration of the same bracket.
+
+    If there isn't enough space in the offset vector, treat this as if it were
+    a non-capturing bracket. Don't worry about setting the flag for the error
+    case here; that is handled in the code for KET. */
+
+    case OP_CBRA:
+    case OP_SCBRA:
+    number = GET2(ecode, 1+LINK_SIZE);
+    offset = number << 1;
+
+#ifdef PCRE_DEBUG
+    printf("start bracket %d\n", number);
+    printf("subject=");
+    pchars(eptr, 16, TRUE, md);
+    printf("\n");
+#endif
+
+    if (offset < md->offset_max)
+      {
+      save_offset1 = md->offset_vector[offset];
+      save_offset2 = md->offset_vector[offset+1];
+      save_offset3 = md->offset_vector[md->offset_end - number];
+      save_capture_last = md->capture_last;
+      save_mark = md->mark;
+
+      DPRINTF(("saving %d %d %d\n", save_offset1, save_offset2, save_offset3));
+      md->offset_vector[md->offset_end - number] =
+        (int)(eptr - md->start_subject);
+
+      for (;;)
+        {
+        if (op >= OP_SBRA) md->match_function_type = MATCH_CBEGROUP;
+        RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode], offset_top, md,
+          eptrb, RM1);
+        if (rrc == MATCH_ONCE) break;  /* Backing up through an atomic group */
+
+        /* If we backed up to a THEN, check whether it is within the current
+        branch by comparing the address of the THEN that is passed back with
+        the end of the branch. If it is within the current branch, and the
+        branch is one of two or more alternatives (it either starts or ends
+        with OP_ALT), we have reached the limit of THEN's action, so convert
+        the return code to NOMATCH, which will cause normal backtracking to
+        happen from now on. Otherwise, THEN is passed back to an outer
+        alternative. This implements Perl's treatment of parenthesized groups,
+        where a group not containing | does not affect the current alternative,
+        that is, (X) is NOT the same as (X|(*F)). */
+
+        if (rrc == MATCH_THEN)
+          {
+          next = ecode + GET(ecode,1);
+          if (md->start_match_ptr < next &&
+              (*ecode == OP_ALT || *next == OP_ALT))
+            rrc = MATCH_NOMATCH;
+          }
+
+        /* Anything other than NOMATCH is passed back. */
+
+        if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+        md->capture_last = save_capture_last;
+        ecode += GET(ecode, 1);
+        md->mark = save_mark;
+        if (*ecode != OP_ALT) break;
+        }
+
+      DPRINTF(("bracket %d failed\n", number));
+      md->offset_vector[offset] = save_offset1;
+      md->offset_vector[offset+1] = save_offset2;
+      md->offset_vector[md->offset_end - number] = save_offset3;
+
+      /* At this point, rrc will be one of MATCH_ONCE or MATCH_NOMATCH. */
+
+      RRETURN(rrc);
+      }
+
+    /* FALL THROUGH ... Insufficient room for saving captured contents. Treat
+    as a non-capturing bracket. */
+
+    /* VVVVVVVVVVVVVVVVVVVVVVVVV */
+    /* VVVVVVVVVVVVVVVVVVVVVVVVV */
+
+    DPRINTF(("insufficient capture room: treat as non-capturing\n"));
+
+    /* VVVVVVVVVVVVVVVVVVVVVVVVV */
+    /* VVVVVVVVVVVVVVVVVVVVVVVVV */
+
+    /* Non-capturing or atomic group, except for possessive with unlimited
+    repeat and ONCE group with no captures. Loop for all the alternatives.
+
+    When we get to the final alternative within the brackets, we used to return
+    the result of a recursive call to match() whatever happened so it was
+    possible to reduce stack usage by turning this into a tail recursion,
+    except in the case of a possibly empty group. However, now that there is
+    the possiblity of (*THEN) occurring in the final alternative, this
+    optimization is no longer always possible.
+
+    We can optimize if we know there are no (*THEN)s in the pattern; at present
+    this is the best that can be done.
+
+    MATCH_ONCE is returned when the end of an atomic group is successfully
+    reached, but subsequent matching fails. It passes back up the tree (causing
+    captured values to be reset) until the original atomic group level is
+    reached. This is tested by comparing md->once_target with the start of the
+    group. At this point, the return is converted into MATCH_NOMATCH so that
+    previous backup points can be taken. */
+
+    case OP_ONCE:
+    case OP_BRA:
+    case OP_SBRA:
+    DPRINTF(("start non-capturing bracket\n"));
+
+    for (;;)
+      {
+      if (op >= OP_SBRA || op == OP_ONCE)
+        md->match_function_type = MATCH_CBEGROUP;
+
+      /* If this is not a possibly empty group, and there are no (*THEN)s in
+      the pattern, and this is the final alternative, optimize as described
+      above. */
+
+      else if (!md->hasthen && ecode[GET(ecode, 1)] != OP_ALT)
+        {
+        ecode += PRIV(OP_lengths)[*ecode];
+        goto TAIL_RECURSE;
+        }
+
+      /* In all other cases, we have to make another call to match(). */
+
+      save_mark = md->mark;
+      RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode], offset_top, md, eptrb,
+        RM2);
+
+      /* See comment in the code for capturing groups above about handling
+      THEN. */
+
+      if (rrc == MATCH_THEN)
+        {
+        next = ecode + GET(ecode,1);
+        if (md->start_match_ptr < next &&
+            (*ecode == OP_ALT || *next == OP_ALT))
+          rrc = MATCH_NOMATCH;
+        }
+
+      if (rrc != MATCH_NOMATCH)
+        {
+        if (rrc == MATCH_ONCE)
+          {
+          const pcre_uchar *scode = ecode;
+          if (*scode != OP_ONCE)           /* If not at start, find it */
+            {
+            while (*scode == OP_ALT) scode += GET(scode, 1);
+            scode -= GET(scode, 1);
+            }
+          if (md->once_target == scode) rrc = MATCH_NOMATCH;
+          }
+        RRETURN(rrc);
+        }
+      ecode += GET(ecode, 1);
+      md->mark = save_mark;
+      if (*ecode != OP_ALT) break;
+      }
+
+    RRETURN(MATCH_NOMATCH);
+
+    /* Handle possessive capturing brackets with an unlimited repeat. We come
+    here from BRAZERO with allow_zero set TRUE. The offset_vector values are
+    handled similarly to the normal case above. However, the matching is
+    different. The end of these brackets will always be OP_KETRPOS, which
+    returns MATCH_KETRPOS without going further in the pattern. By this means
+    we can handle the group by iteration rather than recursion, thereby
+    reducing the amount of stack needed. */
+
+    case OP_CBRAPOS:
+    case OP_SCBRAPOS:
+    allow_zero = FALSE;
+
+    POSSESSIVE_CAPTURE:
+    number = GET2(ecode, 1+LINK_SIZE);
+    offset = number << 1;
+
+#ifdef PCRE_DEBUG
+    printf("start possessive bracket %d\n", number);
+    printf("subject=");
+    pchars(eptr, 16, TRUE, md);
+    printf("\n");
+#endif
+
+    if (offset < md->offset_max)
+      {
+      matched_once = FALSE;
+      code_offset = (int)(ecode - md->start_code);
+
+      save_offset1 = md->offset_vector[offset];
+      save_offset2 = md->offset_vector[offset+1];
+      save_offset3 = md->offset_vector[md->offset_end - number];
+      save_capture_last = md->capture_last;
+
+      DPRINTF(("saving %d %d %d\n", save_offset1, save_offset2, save_offset3));
+
+      /* Each time round the loop, save the current subject position for use
+      when the group matches. For MATCH_MATCH, the group has matched, so we
+      restart it with a new subject starting position, remembering that we had
+      at least one match. For MATCH_NOMATCH, carry on with the alternatives, as
+      usual. If we haven't matched any alternatives in any iteration, check to
+      see if a previous iteration matched. If so, the group has matched;
+      continue from afterwards. Otherwise it has failed; restore the previous
+      capture values before returning NOMATCH. */
+
+      for (;;)
+        {
+        md->offset_vector[md->offset_end - number] =
+          (int)(eptr - md->start_subject);
+        if (op >= OP_SBRA) md->match_function_type = MATCH_CBEGROUP;
+        RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode], offset_top, md,
+          eptrb, RM63);
+        if (rrc == MATCH_KETRPOS)
+          {
+          offset_top = md->end_offset_top;
+          eptr = md->end_match_ptr;
+          ecode = md->start_code + code_offset;
+          save_capture_last = md->capture_last;
+          matched_once = TRUE;
+          continue;
+          }
+
+        /* See comment in the code for capturing groups above about handling
+        THEN. */
+
+        if (rrc == MATCH_THEN)
+          {
+          next = ecode + GET(ecode,1);
+          if (md->start_match_ptr < next &&
+              (*ecode == OP_ALT || *next == OP_ALT))
+            rrc = MATCH_NOMATCH;
+          }
+
+        if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+        md->capture_last = save_capture_last;
+        ecode += GET(ecode, 1);
+        if (*ecode != OP_ALT) break;
+        }
+
+      if (!matched_once)
+        {
+        md->offset_vector[offset] = save_offset1;
+        md->offset_vector[offset+1] = save_offset2;
+        md->offset_vector[md->offset_end - number] = save_offset3;
+        }
+
+      if (allow_zero || matched_once)
+        {
+        ecode += 1 + LINK_SIZE;
+        break;
+        }
+
+      RRETURN(MATCH_NOMATCH);
+      }
+
+    /* FALL THROUGH ... Insufficient room for saving captured contents. Treat
+    as a non-capturing bracket. */
+
+    /* VVVVVVVVVVVVVVVVVVVVVVVVV */
+    /* VVVVVVVVVVVVVVVVVVVVVVVVV */
+
+    DPRINTF(("insufficient capture room: treat as non-capturing\n"));
+
+    /* VVVVVVVVVVVVVVVVVVVVVVVVV */
+    /* VVVVVVVVVVVVVVVVVVVVVVVVV */
+
+    /* Non-capturing possessive bracket with unlimited repeat. We come here
+    from BRAZERO with allow_zero = TRUE. The code is similar to the above,
+    without the capturing complication. It is written out separately for speed
+    and cleanliness. */
+
+    case OP_BRAPOS:
+    case OP_SBRAPOS:
+    allow_zero = FALSE;
+
+    POSSESSIVE_NON_CAPTURE:
+    matched_once = FALSE;
+    code_offset = (int)(ecode - md->start_code);
+
+    for (;;)
+      {
+      if (op >= OP_SBRA) md->match_function_type = MATCH_CBEGROUP;
+      RMATCH(eptr, ecode + PRIV(OP_lengths)[*ecode], offset_top, md,
+        eptrb, RM48);
+      if (rrc == MATCH_KETRPOS)
+        {
+        offset_top = md->end_offset_top;
+        eptr = md->end_match_ptr;
+        ecode = md->start_code + code_offset;
+        matched_once = TRUE;
+        continue;
+        }
+
+      /* See comment in the code for capturing groups above about handling
+      THEN. */
+
+      if (rrc == MATCH_THEN)
+        {
+        next = ecode + GET(ecode,1);
+        if (md->start_match_ptr < next &&
+            (*ecode == OP_ALT || *next == OP_ALT))
+          rrc = MATCH_NOMATCH;
+        }
+
+      if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+      ecode += GET(ecode, 1);
+      if (*ecode != OP_ALT) break;
+      }
+
+    if (matched_once || allow_zero)
+      {
+      ecode += 1 + LINK_SIZE;
+      break;
+      }
+    RRETURN(MATCH_NOMATCH);
+
+    /* Control never reaches here. */
+
+    /* Conditional group: compilation checked that there are no more than
+    two branches. If the condition is false, skipping the first branch takes us
+    past the end if there is only one branch, but that's OK because that is
+    exactly what going to the ket would do. */
+
+    case OP_COND:
+    case OP_SCOND:
+    codelink = GET(ecode, 1);
+
+    /* Because of the way auto-callout works during compile, a callout item is
+    inserted between OP_COND and an assertion condition. */
+
+    if (ecode[LINK_SIZE+1] == OP_CALLOUT)
+      {
+      if (PUBL(callout) != NULL)
+        {
+        PUBL(callout_block) cb;
+        cb.version          = 2;   /* Version 1 of the callout block */
+        cb.callout_number   = ecode[LINK_SIZE+2];
+        cb.offset_vector    = md->offset_vector;
+#ifdef COMPILE_PCRE8
+        cb.subject          = (PCRE_SPTR)md->start_subject;
+#else
+        cb.subject          = (PCRE_SPTR16)md->start_subject;
+#endif
+        cb.subject_length   = (int)(md->end_subject - md->start_subject);
+        cb.start_match      = (int)(mstart - md->start_subject);
+        cb.current_position = (int)(eptr - md->start_subject);
+        cb.pattern_position = GET(ecode, LINK_SIZE + 3);
+        cb.next_item_length = GET(ecode, 3 + 2*LINK_SIZE);
+        cb.capture_top      = offset_top/2;
+        cb.capture_last     = md->capture_last;
+        cb.callout_data     = md->callout_data;
+        cb.mark             = md->nomatch_mark;
+        if ((rrc = (*PUBL(callout))(&cb)) > 0) RRETURN(MATCH_NOMATCH);
+        if (rrc < 0) RRETURN(rrc);
+        }
+      ecode += PRIV(OP_lengths)[OP_CALLOUT];
+      }
+
+    condcode = ecode[LINK_SIZE+1];
+
+    /* Now see what the actual condition is */
+
+    if (condcode == OP_RREF || condcode == OP_NRREF)    /* Recursion test */
+      {
+      if (md->recursive == NULL)                /* Not recursing => FALSE */
+        {
+        condition = FALSE;
+        ecode += GET(ecode, 1);
+        }
+      else
+        {
+        int recno = GET2(ecode, LINK_SIZE + 2);   /* Recursion group number*/
+        condition = (recno == RREF_ANY || recno == md->recursive->group_num);
+
+        /* If the test is for recursion into a specific subpattern, and it is
+        false, but the test was set up by name, scan the table to see if the
+        name refers to any other numbers, and test them. The condition is true
+        if any one is set. */
+
+        if (!condition && condcode == OP_NRREF)
+          {
+          pcre_uchar *slotA = md->name_table;
+          for (i = 0; i < md->name_count; i++)
+            {
+            if (GET2(slotA, 0) == recno) break;
+            slotA += md->name_entry_size;
+            }
+
+          /* Found a name for the number - there can be only one; duplicate
+          names for different numbers are allowed, but not vice versa. First
+          scan down for duplicates. */
+
+          if (i < md->name_count)
+            {
+            pcre_uchar *slotB = slotA;
+            while (slotB > md->name_table)
+              {
+              slotB -= md->name_entry_size;
+              if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+                {
+                condition = GET2(slotB, 0) == md->recursive->group_num;
+                if (condition) break;
+                }
+              else break;
+              }
+
+            /* Scan up for duplicates */
+
+            if (!condition)
+              {
+              slotB = slotA;
+              for (i++; i < md->name_count; i++)
+                {
+                slotB += md->name_entry_size;
+                if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+                  {
+                  condition = GET2(slotB, 0) == md->recursive->group_num;
+                  if (condition) break;
+                  }
+                else break;
+                }
+              }
+            }
+          }
+
+        /* Chose branch according to the condition */
+
+        ecode += condition? 1 + IMM2_SIZE : GET(ecode, 1);
+        }
+      }
+
+    else if (condcode == OP_CREF || condcode == OP_NCREF)  /* Group used test */
+      {
+      offset = GET2(ecode, LINK_SIZE+2) << 1;  /* Doubled ref number */
+      condition = offset < offset_top && md->offset_vector[offset] >= 0;
+
+      /* If the numbered capture is unset, but the reference was by name,
+      scan the table to see if the name refers to any other numbers, and test
+      them. The condition is true if any one is set. This is tediously similar
+      to the code above, but not close enough to try to amalgamate. */
+
+      if (!condition && condcode == OP_NCREF)
+        {
+        int refno = offset >> 1;
+        pcre_uchar *slotA = md->name_table;
+
+        for (i = 0; i < md->name_count; i++)
+          {
+          if (GET2(slotA, 0) == refno) break;
+          slotA += md->name_entry_size;
+          }
+
+        /* Found a name for the number - there can be only one; duplicate names
+        for different numbers are allowed, but not vice versa. First scan down
+        for duplicates. */
+
+        if (i < md->name_count)
+          {
+          pcre_uchar *slotB = slotA;
+          while (slotB > md->name_table)
+            {
+            slotB -= md->name_entry_size;
+            if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+              {
+              offset = GET2(slotB, 0) << 1;
+              condition = offset < offset_top &&
+                md->offset_vector[offset] >= 0;
+              if (condition) break;
+              }
+            else break;
+            }
+
+          /* Scan up for duplicates */
+
+          if (!condition)
+            {
+            slotB = slotA;
+            for (i++; i < md->name_count; i++)
+              {
+              slotB += md->name_entry_size;
+              if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+                {
+                offset = GET2(slotB, 0) << 1;
+                condition = offset < offset_top &&
+                  md->offset_vector[offset] >= 0;
+                if (condition) break;
+                }
+              else break;
+              }
+            }
+          }
+        }
+
+      /* Chose branch according to the condition */
+
+      ecode += condition? 1 + IMM2_SIZE : GET(ecode, 1);
+      }
+
+    else if (condcode == OP_DEF)     /* DEFINE - always false */
+      {
+      condition = FALSE;
+      ecode += GET(ecode, 1);
+      }
+
+    /* The condition is an assertion. Call match() to evaluate it - setting
+    md->match_function_type to MATCH_CONDASSERT causes it to stop at the end of
+    an assertion. */
+
+    else
+      {
+      md->match_function_type = MATCH_CONDASSERT;
+      RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, NULL, RM3);
+      if (rrc == MATCH_MATCH)
+        {
+        if (md->end_offset_top > offset_top)
+          offset_top = md->end_offset_top;  /* Captures may have happened */
+        condition = TRUE;
+        ecode += 1 + LINK_SIZE + GET(ecode, LINK_SIZE + 2);
+        while (*ecode == OP_ALT) ecode += GET(ecode, 1);
+        }
+
+      /* PCRE doesn't allow the effect of (*THEN) to escape beyond an
+      assertion; it is therefore treated as NOMATCH. */
+
+      else if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN)
+        {
+        RRETURN(rrc);         /* Need braces because of following else */
+        }
+      else
+        {
+        condition = FALSE;
+        ecode += codelink;
+        }
+      }
+
+    /* We are now at the branch that is to be obeyed. As there is only one, can
+    use tail recursion to avoid using another stack frame, except when there is
+    unlimited repeat of a possibly empty group. In the latter case, a recursive
+    call to match() is always required, unless the second alternative doesn't
+    exist, in which case we can just plough on. Note that, for compatibility
+    with Perl, the | in a conditional group is NOT treated as creating two
+    alternatives. If a THEN is encountered in the branch, it propagates out to
+    the enclosing alternative (unless nested in a deeper set of alternatives,
+    of course). */
+
+    if (condition || *ecode == OP_ALT)
+      {
+      if (op != OP_SCOND)
+        {
+        ecode += 1 + LINK_SIZE;
+        goto TAIL_RECURSE;
+        }
+
+      md->match_function_type = MATCH_CBEGROUP;
+      RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, eptrb, RM49);
+      RRETURN(rrc);
+      }
+
+     /* Condition false & no alternative; continue after the group. */
+
+    else
+      {
+      ecode += 1 + LINK_SIZE;
+      }
+    break;
+
+
+    /* Before OP_ACCEPT there may be any number of OP_CLOSE opcodes,
+    to close any currently open capturing brackets. */
+
+    case OP_CLOSE:
+    number = GET2(ecode, 1);
+    offset = number << 1;
+
+#ifdef PCRE_DEBUG
+      printf("end bracket %d at *ACCEPT", number);
+      printf("\n");
+#endif
+
+    md->capture_last = number;
+    if (offset >= md->offset_max) md->offset_overflow = TRUE; else
+      {
+      md->offset_vector[offset] =
+        md->offset_vector[md->offset_end - number];
+      md->offset_vector[offset+1] = (int)(eptr - md->start_subject);
+      if (offset_top <= offset) offset_top = offset + 2;
+      }
+    ecode += 1 + IMM2_SIZE;
+    break;
+
+
+    /* End of the pattern, either real or forced. */
+
+    case OP_END:
+    case OP_ACCEPT:
+    case OP_ASSERT_ACCEPT:
+
+    /* If we have matched an empty string, fail if not in an assertion and not
+    in a recursion if either PCRE_NOTEMPTY is set, or if PCRE_NOTEMPTY_ATSTART
+    is set and we have matched at the start of the subject. In both cases,
+    backtracking will then try other alternatives, if any. */
+
+    if (eptr == mstart && op != OP_ASSERT_ACCEPT &&
+         md->recursive == NULL &&
+         (md->notempty ||
+           (md->notempty_atstart &&
+             mstart == md->start_subject + md->start_offset)))
+      RRETURN(MATCH_NOMATCH);
+
+    /* Otherwise, we have a match. */
+
+    md->end_match_ptr = eptr;           /* Record where we ended */
+    md->end_offset_top = offset_top;    /* and how many extracts were taken */
+    md->start_match_ptr = mstart;       /* and the start (\K can modify) */
+
+    /* For some reason, the macros don't work properly if an expression is
+    given as the argument to RRETURN when the heap is in use. */
+
+    rrc = (op == OP_END)? MATCH_MATCH : MATCH_ACCEPT;
+    RRETURN(rrc);
+
+    /* Assertion brackets. Check the alternative branches in turn - the
+    matching won't pass the KET for an assertion. If any one branch matches,
+    the assertion is true. Lookbehind assertions have an OP_REVERSE item at the
+    start of each branch to move the current point backwards, so the code at
+    this level is identical to the lookahead case. When the assertion is part
+    of a condition, we want to return immediately afterwards. The caller of
+    this incarnation of the match() function will have set MATCH_CONDASSERT in
+    md->match_function type, and one of these opcodes will be the first opcode
+    that is processed. We use a local variable that is preserved over calls to
+    match() to remember this case. */
+
+    case OP_ASSERT:
+    case OP_ASSERTBACK:
+    save_mark = md->mark;
+    if (md->match_function_type == MATCH_CONDASSERT)
+      {
+      condassert = TRUE;
+      md->match_function_type = 0;
+      }
+    else condassert = FALSE;
+
+    do
+      {
+      RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, NULL, RM4);
+      if (rrc == MATCH_MATCH || rrc == MATCH_ACCEPT)
+        {
+        mstart = md->start_match_ptr;   /* In case \K reset it */
+        break;
+        }
+      md->mark = save_mark;
+
+      /* A COMMIT failure must fail the entire assertion, without trying any
+      subsequent branches. */
+
+      if (rrc == MATCH_COMMIT) RRETURN(MATCH_NOMATCH);
+
+      /* PCRE does not allow THEN to escape beyond an assertion; it
+      is treated as NOMATCH. */
+
+      if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
+      ecode += GET(ecode, 1);
+      }
+    while (*ecode == OP_ALT);
+
+    if (*ecode == OP_KET) RRETURN(MATCH_NOMATCH);
+
+    /* If checking an assertion for a condition, return MATCH_MATCH. */
+
+    if (condassert) RRETURN(MATCH_MATCH);
+
+    /* Continue from after the assertion, updating the offsets high water
+    mark, since extracts may have been taken during the assertion. */
+
+    do ecode += GET(ecode,1); while (*ecode == OP_ALT);
+    ecode += 1 + LINK_SIZE;
+    offset_top = md->end_offset_top;
+    continue;
+
+    /* Negative assertion: all branches must fail to match. Encountering SKIP,
+    PRUNE, or COMMIT means we must assume failure without checking subsequent
+    branches. */
+
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK_NOT:
+    save_mark = md->mark;
+    if (md->match_function_type == MATCH_CONDASSERT)
+      {
+      condassert = TRUE;
+      md->match_function_type = 0;
+      }
+    else condassert = FALSE;
+
+    do
+      {
+      RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, NULL, RM5);
+      md->mark = save_mark;
+      if (rrc == MATCH_MATCH || rrc == MATCH_ACCEPT) RRETURN(MATCH_NOMATCH);
+      if (rrc == MATCH_SKIP || rrc == MATCH_PRUNE || rrc == MATCH_COMMIT)
+        {
+        do ecode += GET(ecode,1); while (*ecode == OP_ALT);
+        break;
+        }
+
+      /* PCRE does not allow THEN to escape beyond an assertion; it is treated
+      as NOMATCH. */
+
+      if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
+      ecode += GET(ecode,1);
+      }
+    while (*ecode == OP_ALT);
+
+    if (condassert) RRETURN(MATCH_MATCH);  /* Condition assertion */
+
+    ecode += 1 + LINK_SIZE;
+    continue;
+
+    /* Move the subject pointer back. This occurs only at the start of
+    each branch of a lookbehind assertion. If we are too close to the start to
+    move back, this match function fails. When working with UTF-8 we move
+    back a number of characters, not bytes. */
+
+    case OP_REVERSE:
+#ifdef SUPPORT_UTF
+    if (utf)
+      {
+      i = GET(ecode, 1);
+      while (i-- > 0)
+        {
+        eptr--;
+        if (eptr < md->start_subject) RRETURN(MATCH_NOMATCH);
+        BACKCHAR(eptr);
+        }
+      }
+    else
+#endif
+
+    /* No UTF-8 support, or not in UTF-8 mode: count is byte count */
+
+      {
+      eptr -= GET(ecode, 1);
+      if (eptr < md->start_subject) RRETURN(MATCH_NOMATCH);
+      }
+
+    /* Save the earliest consulted character, then skip to next op code */
+
+    if (eptr < md->start_used_ptr) md->start_used_ptr = eptr;
+    ecode += 1 + LINK_SIZE;
+    break;
+
+    /* The callout item calls an external function, if one is provided, passing
+    details of the match so far. This is mainly for debugging, though the
+    function is able to force a failure. */
+
+    case OP_CALLOUT:
+    if (PUBL(callout) != NULL)
+      {
+      PUBL(callout_block) cb;
+      cb.version          = 2;   /* Version 1 of the callout block */
+      cb.callout_number   = ecode[1];
+      cb.offset_vector    = md->offset_vector;
+#ifdef COMPILE_PCRE8
+      cb.subject          = (PCRE_SPTR)md->start_subject;
+#else
+      cb.subject          = (PCRE_SPTR16)md->start_subject;
+#endif
+      cb.subject_length   = (int)(md->end_subject - md->start_subject);
+      cb.start_match      = (int)(mstart - md->start_subject);
+      cb.current_position = (int)(eptr - md->start_subject);
+      cb.pattern_position = GET(ecode, 2);
+      cb.next_item_length = GET(ecode, 2 + LINK_SIZE);
+      cb.capture_top      = offset_top/2;
+      cb.capture_last     = md->capture_last;
+      cb.callout_data     = md->callout_data;
+      cb.mark             = md->nomatch_mark;
+      if ((rrc = (*PUBL(callout))(&cb)) > 0) RRETURN(MATCH_NOMATCH);
+      if (rrc < 0) RRETURN(rrc);
+      }
+    ecode += 2 + 2*LINK_SIZE;
+    break;
+
+    /* Recursion either matches the current regex, or some subexpression. The
+    offset data is the offset to the starting bracket from the start of the
+    whole pattern. (This is so that it works from duplicated subpatterns.)
+
+    The state of the capturing groups is preserved over recursion, and
+    re-instated afterwards. We don't know how many are started and not yet
+    finished (offset_top records the completed total) so we just have to save
+    all the potential data. There may be up to 65535 such values, which is too
+    large to put on the stack, but using malloc for small numbers seems
+    expensive. As a compromise, the stack is used when there are no more than
+    REC_STACK_SAVE_MAX values to store; otherwise malloc is used.
+
+    There are also other values that have to be saved. We use a chained
+    sequence of blocks that actually live on the stack. Thanks to Robin Houston
+    for the original version of this logic. It has, however, been hacked around
+    a lot, so he is not to blame for the current way it works. */
+
+    case OP_RECURSE:
+      {
+      recursion_info *ri;
+      int recno;
+
+      callpat = md->start_code + GET(ecode, 1);
+      recno = (callpat == md->start_code)? 0 :
+        GET2(callpat, 1 + LINK_SIZE);
+
+      /* Check for repeating a recursion without advancing the subject pointer.
+      This should catch convoluted mutual recursions. (Some simple cases are
+      caught at compile time.) */
+
+      for (ri = md->recursive; ri != NULL; ri = ri->prevrec)
+        if (recno == ri->group_num && eptr == ri->subject_position)
+          RRETURN(PCRE_ERROR_RECURSELOOP);
+
+      /* Add to "recursing stack" */
+
+      new_recursive.group_num = recno;
+      new_recursive.subject_position = eptr;
+      new_recursive.prevrec = md->recursive;
+      md->recursive = &new_recursive;
+
+      /* Where to continue from afterwards */
+
+      ecode += 1 + LINK_SIZE;
+
+      /* Now save the offset data */
+
+      new_recursive.saved_max = md->offset_end;
+      if (new_recursive.saved_max <= REC_STACK_SAVE_MAX)
+        new_recursive.offset_save = stacksave;
+      else
+        {
+        new_recursive.offset_save =
+          (int *)(PUBL(malloc))(new_recursive.saved_max * sizeof(int));
+        if (new_recursive.offset_save == NULL) RRETURN(PCRE_ERROR_NOMEMORY);
+        }
+      memcpy(new_recursive.offset_save, md->offset_vector,
+            new_recursive.saved_max * sizeof(int));
+
+      /* OK, now we can do the recursion. After processing each alternative,
+      restore the offset data. If there were nested recursions, md->recursive
+      might be changed, so reset it before looping. */
+
+      DPRINTF(("Recursing into group %d\n", new_recursive.group_num));
+      cbegroup = (*callpat >= OP_SBRA);
+      do
+        {
+        if (cbegroup) md->match_function_type = MATCH_CBEGROUP;
+        RMATCH(eptr, callpat + PRIV(OP_lengths)[*callpat], offset_top,
+          md, eptrb, RM6);
+        memcpy(md->offset_vector, new_recursive.offset_save,
+            new_recursive.saved_max * sizeof(int));
+        md->recursive = new_recursive.prevrec;
+        if (rrc == MATCH_MATCH || rrc == MATCH_ACCEPT)
+          {
+          DPRINTF(("Recursion matched\n"));
+          if (new_recursive.offset_save != stacksave)
+            (PUBL(free))(new_recursive.offset_save);
+
+          /* Set where we got to in the subject, and reset the start in case
+          it was changed by \K. This *is* propagated back out of a recursion,
+          for Perl compatibility. */
+
+          eptr = md->end_match_ptr;
+          mstart = md->start_match_ptr;
+          goto RECURSION_MATCHED;        /* Exit loop; end processing */
+          }
+
+        /* PCRE does not allow THEN or COMMIT to escape beyond a recursion; it
+        is treated as NOMATCH. */
+
+        else if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN &&
+                 rrc != MATCH_COMMIT)
+          {
+          DPRINTF(("Recursion gave error %d\n", rrc));
+          if (new_recursive.offset_save != stacksave)
+            (PUBL(free))(new_recursive.offset_save);
+          RRETURN(rrc);
+          }
+
+        md->recursive = &new_recursive;
+        callpat += GET(callpat, 1);
+        }
+      while (*callpat == OP_ALT);
+
+      DPRINTF(("Recursion didn't match\n"));
+      md->recursive = new_recursive.prevrec;
+      if (new_recursive.offset_save != stacksave)
+        (PUBL(free))(new_recursive.offset_save);
+      RRETURN(MATCH_NOMATCH);
+      }
+
+    RECURSION_MATCHED:
+    break;
+
+    /* An alternation is the end of a branch; scan along to find the end of the
+    bracketed group and go to there. */
+
+    case OP_ALT:
+    do ecode += GET(ecode,1); while (*ecode == OP_ALT);
+    break;
+
+    /* BRAZERO, BRAMINZERO and SKIPZERO occur just before a bracket group,
+    indicating that it may occur zero times. It may repeat infinitely, or not
+    at all - i.e. it could be ()* or ()? or even (){0} in the pattern. Brackets
+    with fixed upper repeat limits are compiled as a number of copies, with the
+    optional ones preceded by BRAZERO or BRAMINZERO. */
+
+    case OP_BRAZERO:
+    next = ecode + 1;
+    RMATCH(eptr, next, offset_top, md, eptrb, RM10);
+    if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+    do next += GET(next, 1); while (*next == OP_ALT);
+    ecode = next + 1 + LINK_SIZE;
+    break;
+
+    case OP_BRAMINZERO:
+    next = ecode + 1;
+    do next += GET(next, 1); while (*next == OP_ALT);
+    RMATCH(eptr, next + 1+LINK_SIZE, offset_top, md, eptrb, RM11);
+    if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+    ecode++;
+    break;
+
+    case OP_SKIPZERO:
+    next = ecode+1;
+    do next += GET(next,1); while (*next == OP_ALT);
+    ecode = next + 1 + LINK_SIZE;
+    break;
+
+    /* BRAPOSZERO occurs before a possessive bracket group. Don't do anything
+    here; just jump to the group, with allow_zero set TRUE. */
+
+    case OP_BRAPOSZERO:
+    op = *(++ecode);
+    allow_zero = TRUE;
+    if (op == OP_CBRAPOS || op == OP_SCBRAPOS) goto POSSESSIVE_CAPTURE;
+      goto POSSESSIVE_NON_CAPTURE;
+
+    /* End of a group, repeated or non-repeating. */
+
+    case OP_KET:
+    case OP_KETRMIN:
+    case OP_KETRMAX:
+    case OP_KETRPOS:
+    prev = ecode - GET(ecode, 1);
+
+    /* If this was a group that remembered the subject start, in order to break
+    infinite repeats of empty string matches, retrieve the subject start from
+    the chain. Otherwise, set it NULL. */
+
+    if (*prev >= OP_SBRA || *prev == OP_ONCE)
+      {
+      saved_eptr = eptrb->epb_saved_eptr;   /* Value at start of group */
+      eptrb = eptrb->epb_prev;              /* Backup to previous group */
+      }
+    else saved_eptr = NULL;
+
+    /* If we are at the end of an assertion group or a non-capturing atomic
+    group, stop matching and return MATCH_MATCH, but record the current high
+    water mark for use by positive assertions. We also need to record the match
+    start in case it was changed by \K. */
+
+    if ((*prev >= OP_ASSERT && *prev <= OP_ASSERTBACK_NOT) ||
+         *prev == OP_ONCE_NC)
+      {
+      md->end_match_ptr = eptr;      /* For ONCE_NC */
+      md->end_offset_top = offset_top;
+      md->start_match_ptr = mstart;
+      RRETURN(MATCH_MATCH);         /* Sets md->mark */
+      }
+
+    /* For capturing groups we have to check the group number back at the start
+    and if necessary complete handling an extraction by setting the offsets and
+    bumping the high water mark. Whole-pattern recursion is coded as a recurse
+    into group 0, so it won't be picked up here. Instead, we catch it when the
+    OP_END is reached. Other recursion is handled here. We just have to record
+    the current subject position and start match pointer and give a MATCH
+    return. */
+
+    if (*prev == OP_CBRA || *prev == OP_SCBRA ||
+        *prev == OP_CBRAPOS || *prev == OP_SCBRAPOS)
+      {
+      number = GET2(prev, 1+LINK_SIZE);
+      offset = number << 1;
+
+#ifdef PCRE_DEBUG
+      printf("end bracket %d", number);
+      printf("\n");
+#endif
+
+      /* Handle a recursively called group. */
+
+      if (md->recursive != NULL && md->recursive->group_num == number)
+        {
+        md->end_match_ptr = eptr;
+        md->start_match_ptr = mstart;
+        RRETURN(MATCH_MATCH);
+        }
+
+      /* Deal with capturing */
+
+      md->capture_last = number;
+      if (offset >= md->offset_max) md->offset_overflow = TRUE; else
+        {
+        /* If offset is greater than offset_top, it means that we are
+        "skipping" a capturing group, and that group's offsets must be marked
+        unset. In earlier versions of PCRE, all the offsets were unset at the
+        start of matching, but this doesn't work because atomic groups and
+        assertions can cause a value to be set that should later be unset.
+        Example: matching /(?>(a))b|(a)c/ against "ac". This sets group 1 as
+        part of the atomic group, but this is not on the final matching path,
+        so must be unset when 2 is set. (If there is no group 2, there is no
+        problem, because offset_top will then be 2, indicating no capture.) */
+
+        if (offset > offset_top)
+          {
+          register int *iptr = md->offset_vector + offset_top;
+          register int *iend = md->offset_vector + offset;
+          while (iptr < iend) *iptr++ = -1;
+          }
+
+        /* Now make the extraction */
+
+        md->offset_vector[offset] =
+          md->offset_vector[md->offset_end - number];
+        md->offset_vector[offset+1] = (int)(eptr - md->start_subject);
+        if (offset_top <= offset) offset_top = offset + 2;
+        }
+      }
+
+    /* For an ordinary non-repeating ket, just continue at this level. This
+    also happens for a repeating ket if no characters were matched in the
+    group. This is the forcible breaking of infinite loops as implemented in
+    Perl 5.005. For a non-repeating atomic group that includes captures,
+    establish a backup point by processing the rest of the pattern at a lower
+    level. If this results in a NOMATCH return, pass MATCH_ONCE back to the
+    original OP_ONCE level, thereby bypassing intermediate backup points, but
+    resetting any captures that happened along the way. */
+
+    if (*ecode == OP_KET || eptr == saved_eptr)
+      {
+      if (*prev == OP_ONCE)
+        {
+        RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, eptrb, RM12);
+        if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+        md->once_target = prev;  /* Level at which to change to MATCH_NOMATCH */
+        RRETURN(MATCH_ONCE);
+        }
+      ecode += 1 + LINK_SIZE;    /* Carry on at this level */
+      break;
+      }
+
+    /* OP_KETRPOS is a possessive repeating ket. Remember the current position,
+    and return the MATCH_KETRPOS. This makes it possible to do the repeats one
+    at a time from the outer level, thus saving stack. */
+
+    if (*ecode == OP_KETRPOS)
+      {
+      md->end_match_ptr = eptr;
+      md->end_offset_top = offset_top;
+      RRETURN(MATCH_KETRPOS);
+      }
+
+    /* The normal repeating kets try the rest of the pattern or restart from
+    the preceding bracket, in the appropriate order. In the second case, we can
+    use tail recursion to avoid using another stack frame, unless we have an
+    an atomic group or an unlimited repeat of a group that can match an empty
+    string. */
+
+    if (*ecode == OP_KETRMIN)
+      {
+      RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, eptrb, RM7);
+      if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+      if (*prev == OP_ONCE)
+        {
+        RMATCH(eptr, prev, offset_top, md, eptrb, RM8);
+        if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+        md->once_target = prev;  /* Level at which to change to MATCH_NOMATCH */
+        RRETURN(MATCH_ONCE);
+        }
+      if (*prev >= OP_SBRA)    /* Could match an empty string */
+        {
+        RMATCH(eptr, prev, offset_top, md, eptrb, RM50);
+        RRETURN(rrc);
+        }
+      ecode = prev;
+      goto TAIL_RECURSE;
+      }
+    else  /* OP_KETRMAX */
+      {
+      RMATCH(eptr, prev, offset_top, md, eptrb, RM13);
+      if (rrc == MATCH_ONCE && md->once_target == prev) rrc = MATCH_NOMATCH;
+      if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+      if (*prev == OP_ONCE)
+        {
+        RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, eptrb, RM9);
+        if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+        md->once_target = prev;
+        RRETURN(MATCH_ONCE);
+        }
+      ecode += 1 + LINK_SIZE;
+      goto TAIL_RECURSE;
+      }
+    /* Control never gets here */
+
+    /* Not multiline mode: start of subject assertion, unless notbol. */
+
+    case OP_CIRC:
+    if (md->notbol && eptr == md->start_subject) RRETURN(MATCH_NOMATCH);
+
+    /* Start of subject assertion */
+
+    case OP_SOD:
+    if (eptr != md->start_subject) RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    /* Multiline mode: start of subject unless notbol, or after any newline. */
+
+    case OP_CIRCM:
+    if (md->notbol && eptr == md->start_subject) RRETURN(MATCH_NOMATCH);
+    if (eptr != md->start_subject &&
+        (eptr == md->end_subject || !WAS_NEWLINE(eptr)))
+      RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    /* Start of match assertion */
+
+    case OP_SOM:
+    if (eptr != md->start_subject + md->start_offset) RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    /* Reset the start of match point */
+
+    case OP_SET_SOM:
+    mstart = eptr;
+    ecode++;
+    break;
+
+    /* Multiline mode: assert before any newline, or before end of subject
+    unless noteol is set. */
+
+    case OP_DOLLM:
+    if (eptr < md->end_subject)
+      {
+      if (!IS_NEWLINE(eptr))
+        {
+        if (md->partial != 0 &&
+            eptr + 1 >= md->end_subject &&
+            NLBLOCK->nltype == NLTYPE_FIXED &&
+            NLBLOCK->nllen == 2 &&
+            *eptr == NLBLOCK->nl[0])
+          {
+          md->hitend = TRUE;
+          if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+          }
+        RRETURN(MATCH_NOMATCH);
+        }
+      }
+    else
+      {
+      if (md->noteol) RRETURN(MATCH_NOMATCH);
+      SCHECK_PARTIAL();
+      }
+    ecode++;
+    break;
+
+    /* Not multiline mode: assert before a terminating newline or before end of
+    subject unless noteol is set. */
+
+    case OP_DOLL:
+    if (md->noteol) RRETURN(MATCH_NOMATCH);
+    if (!md->endonly) goto ASSERT_NL_OR_EOS;
+
+    /* ... else fall through for endonly */
+
+    /* End of subject assertion (\z) */
+
+    case OP_EOD:
+    if (eptr < md->end_subject) RRETURN(MATCH_NOMATCH);
+    SCHECK_PARTIAL();
+    ecode++;
+    break;
+
+    /* End of subject or ending \n assertion (\Z) */
+
+    case OP_EODN:
+    ASSERT_NL_OR_EOS:
+    if (eptr < md->end_subject &&
+        (!IS_NEWLINE(eptr) || eptr != md->end_subject - md->nllen))
+      {
+      if (md->partial != 0 &&
+          eptr + 1 >= md->end_subject &&
+          NLBLOCK->nltype == NLTYPE_FIXED &&
+          NLBLOCK->nllen == 2 &&
+          *eptr == NLBLOCK->nl[0])
+        {
+        md->hitend = TRUE;
+        if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+        }
+      RRETURN(MATCH_NOMATCH);
+      }
+
+    /* Either at end of string or \n before end. */
+
+    SCHECK_PARTIAL();
+    ecode++;
+    break;
+
+    /* Word boundary assertions */
+
+    case OP_NOT_WORD_BOUNDARY:
+    case OP_WORD_BOUNDARY:
+      {
+
+      /* Find out if the previous and current characters are "word" characters.
+      It takes a bit more work in UTF-8 mode. Characters > 255 are assumed to
+      be "non-word" characters. Remember the earliest consulted character for
+      partial matching. */
+
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+        /* Get status of previous character */
+
+        if (eptr == md->start_subject) prev_is_word = FALSE; else
+          {
+          PCRE_PUCHAR lastptr = eptr - 1;
+          BACKCHAR(lastptr);
+          if (lastptr < md->start_used_ptr) md->start_used_ptr = lastptr;
+          GETCHAR(c, lastptr);
+#ifdef SUPPORT_UCP
+          if (md->use_ucp)
+            {
+            if (c == '_') prev_is_word = TRUE; else
+              {
+              int cat = UCD_CATEGORY(c);
+              prev_is_word = (cat == ucp_L || cat == ucp_N);
+              }
+            }
+          else
+#endif
+          prev_is_word = c < 256 && (md->ctypes[c] & ctype_word) != 0;
+          }
+
+        /* Get status of next character */
+
+        if (eptr >= md->end_subject)
+          {
+          SCHECK_PARTIAL();
+          cur_is_word = FALSE;
+          }
+        else
+          {
+          GETCHAR(c, eptr);
+#ifdef SUPPORT_UCP
+          if (md->use_ucp)
+            {
+            if (c == '_') cur_is_word = TRUE; else
+              {
+              int cat = UCD_CATEGORY(c);
+              cur_is_word = (cat == ucp_L || cat == ucp_N);
+              }
+            }
+          else
+#endif
+          cur_is_word = c < 256 && (md->ctypes[c] & ctype_word) != 0;
+          }
+        }
+      else
+#endif
+
+      /* Not in UTF-8 mode, but we may still have PCRE_UCP set, and for
+      consistency with the behaviour of \w we do use it in this case. */
+
+        {
+        /* Get status of previous character */
+
+        if (eptr == md->start_subject) prev_is_word = FALSE; else
+          {
+          if (eptr <= md->start_used_ptr) md->start_used_ptr = eptr - 1;
+#ifdef SUPPORT_UCP
+          if (md->use_ucp)
+            {
+            c = eptr[-1];
+            if (c == '_') prev_is_word = TRUE; else
+              {
+              int cat = UCD_CATEGORY(c);
+              prev_is_word = (cat == ucp_L || cat == ucp_N);
+              }
+            }
+          else
+#endif
+          prev_is_word = MAX_255(eptr[-1])
+            && ((md->ctypes[eptr[-1]] & ctype_word) != 0);
+          }
+
+        /* Get status of next character */
+
+        if (eptr >= md->end_subject)
+          {
+          SCHECK_PARTIAL();
+          cur_is_word = FALSE;
+          }
+        else
+#ifdef SUPPORT_UCP
+        if (md->use_ucp)
+          {
+          c = *eptr;
+          if (c == '_') cur_is_word = TRUE; else
+            {
+            int cat = UCD_CATEGORY(c);
+            cur_is_word = (cat == ucp_L || cat == ucp_N);
+            }
+          }
+        else
+#endif
+        cur_is_word = MAX_255(*eptr)
+          && ((md->ctypes[*eptr] & ctype_word) != 0);
+        }
+
+      /* Now see if the situation is what we want */
+
+      if ((*ecode++ == OP_WORD_BOUNDARY)?
+           cur_is_word == prev_is_word : cur_is_word != prev_is_word)
+        RRETURN(MATCH_NOMATCH);
+      }
+    break;
+
+    /* Match any single character type except newline; have to take care with
+    CRLF newlines and partial matching. */
+
+    case OP_ANY:
+    if (IS_NEWLINE(eptr)) RRETURN(MATCH_NOMATCH);
+    if (md->partial != 0 &&
+        eptr + 1 >= md->end_subject &&
+        NLBLOCK->nltype == NLTYPE_FIXED &&
+        NLBLOCK->nllen == 2 &&
+        *eptr == NLBLOCK->nl[0])
+      {
+      md->hitend = TRUE;
+      if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+      }
+
+    /* Fall through */
+
+    /* Match any single character whatsoever. */
+
+    case OP_ALLANY:
+    if (eptr >= md->end_subject)   /* DO NOT merge the eptr++ here; it must */
+      {                            /* not be updated before SCHECK_PARTIAL. */
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    eptr++;
+#ifdef SUPPORT_UTF
+    if (utf) ACROSSCHAR(eptr < md->end_subject, *eptr, eptr++);
+#endif
+    ecode++;
+    break;
+
+    /* Match a single byte, even in UTF-8 mode. This opcode really does match
+    any byte, even newline, independent of the setting of PCRE_DOTALL. */
+
+    case OP_ANYBYTE:
+    if (eptr >= md->end_subject)   /* DO NOT merge the eptr++ here; it must */
+      {                            /* not be updated before SCHECK_PARTIAL. */
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    eptr++;
+    ecode++;
+    break;
+
+    case OP_NOT_DIGIT:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    if (
+#if defined SUPPORT_UTF || !(defined COMPILE_PCRE8)
+       c < 256 &&
+#endif
+       (md->ctypes[c] & ctype_digit) != 0
+       )
+      RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    case OP_DIGIT:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    if (
+#if defined SUPPORT_UTF || !(defined COMPILE_PCRE8)
+       c > 255 ||
+#endif
+       (md->ctypes[c] & ctype_digit) == 0
+       )
+      RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    case OP_NOT_WHITESPACE:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    if (
+#if defined SUPPORT_UTF || !(defined COMPILE_PCRE8)
+       c < 256 &&
+#endif
+       (md->ctypes[c] & ctype_space) != 0
+       )
+      RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    case OP_WHITESPACE:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    if (
+#if defined SUPPORT_UTF || !(defined COMPILE_PCRE8)
+       c > 255 ||
+#endif
+       (md->ctypes[c] & ctype_space) == 0
+       )
+      RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    case OP_NOT_WORDCHAR:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    if (
+#if defined SUPPORT_UTF || !(defined COMPILE_PCRE8)
+       c < 256 &&
+#endif
+       (md->ctypes[c] & ctype_word) != 0
+       )
+      RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    case OP_WORDCHAR:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    if (
+#if defined SUPPORT_UTF || !(defined COMPILE_PCRE8)
+       c > 255 ||
+#endif
+       (md->ctypes[c] & ctype_word) == 0
+       )
+      RRETURN(MATCH_NOMATCH);
+    ecode++;
+    break;
+
+    case OP_ANYNL:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    switch(c)
+      {
+      default: RRETURN(MATCH_NOMATCH);
+
+      case 0x000d:
+      if (eptr >= md->end_subject)
+        {
+        SCHECK_PARTIAL();
+        }
+      else if (*eptr == 0x0a) eptr++;
+      break;
+
+      case 0x000a:
+      break;
+
+      case 0x000b:
+      case 0x000c:
+      case 0x0085:
+      case 0x2028:
+      case 0x2029:
+      if (md->bsr_anycrlf) RRETURN(MATCH_NOMATCH);
+      break;
+      }
+    ecode++;
+    break;
+
+    case OP_NOT_HSPACE:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    switch(c)
+      {
+      default: break;
+      case 0x09:      /* HT */
+      case 0x20:      /* SPACE */
+      case 0xa0:      /* NBSP */
+      case 0x1680:    /* OGHAM SPACE MARK */
+      case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+      case 0x2000:    /* EN QUAD */
+      case 0x2001:    /* EM QUAD */
+      case 0x2002:    /* EN SPACE */
+      case 0x2003:    /* EM SPACE */
+      case 0x2004:    /* THREE-PER-EM SPACE */
+      case 0x2005:    /* FOUR-PER-EM SPACE */
+      case 0x2006:    /* SIX-PER-EM SPACE */
+      case 0x2007:    /* FIGURE SPACE */
+      case 0x2008:    /* PUNCTUATION SPACE */
+      case 0x2009:    /* THIN SPACE */
+      case 0x200A:    /* HAIR SPACE */
+      case 0x202f:    /* NARROW NO-BREAK SPACE */
+      case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+      case 0x3000:    /* IDEOGRAPHIC SPACE */
+      RRETURN(MATCH_NOMATCH);
+      }
+    ecode++;
+    break;
+
+    case OP_HSPACE:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    switch(c)
+      {
+      default: RRETURN(MATCH_NOMATCH);
+      case 0x09:      /* HT */
+      case 0x20:      /* SPACE */
+      case 0xa0:      /* NBSP */
+      case 0x1680:    /* OGHAM SPACE MARK */
+      case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+      case 0x2000:    /* EN QUAD */
+      case 0x2001:    /* EM QUAD */
+      case 0x2002:    /* EN SPACE */
+      case 0x2003:    /* EM SPACE */
+      case 0x2004:    /* THREE-PER-EM SPACE */
+      case 0x2005:    /* FOUR-PER-EM SPACE */
+      case 0x2006:    /* SIX-PER-EM SPACE */
+      case 0x2007:    /* FIGURE SPACE */
+      case 0x2008:    /* PUNCTUATION SPACE */
+      case 0x2009:    /* THIN SPACE */
+      case 0x200A:    /* HAIR SPACE */
+      case 0x202f:    /* NARROW NO-BREAK SPACE */
+      case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+      case 0x3000:    /* IDEOGRAPHIC SPACE */
+      break;
+      }
+    ecode++;
+    break;
+
+    case OP_NOT_VSPACE:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    switch(c)
+      {
+      default: break;
+      case 0x0a:      /* LF */
+      case 0x0b:      /* VT */
+      case 0x0c:      /* FF */
+      case 0x0d:      /* CR */
+      case 0x85:      /* NEL */
+      case 0x2028:    /* LINE SEPARATOR */
+      case 0x2029:    /* PARAGRAPH SEPARATOR */
+      RRETURN(MATCH_NOMATCH);
+      }
+    ecode++;
+    break;
+
+    case OP_VSPACE:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    switch(c)
+      {
+      default: RRETURN(MATCH_NOMATCH);
+      case 0x0a:      /* LF */
+      case 0x0b:      /* VT */
+      case 0x0c:      /* FF */
+      case 0x0d:      /* CR */
+      case 0x85:      /* NEL */
+      case 0x2028:    /* LINE SEPARATOR */
+      case 0x2029:    /* PARAGRAPH SEPARATOR */
+      break;
+      }
+    ecode++;
+    break;
+
+#ifdef SUPPORT_UCP
+    /* Check the next character by Unicode property. We will get here only
+    if the support is in the binary; otherwise a compile-time error occurs. */
+
+    case OP_PROP:
+    case OP_NOTPROP:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+      {
+      const ucd_record *prop = GET_UCD(c);
+
+      switch(ecode[1])
+        {
+        case PT_ANY:
+        if (op == OP_NOTPROP) RRETURN(MATCH_NOMATCH);
+        break;
+
+        case PT_LAMP:
+        if ((prop->chartype == ucp_Lu ||
+             prop->chartype == ucp_Ll ||
+             prop->chartype == ucp_Lt) == (op == OP_NOTPROP))
+          RRETURN(MATCH_NOMATCH);
+        break;
+
+        case PT_GC:
+        if ((ecode[2] != PRIV(ucp_gentype)[prop->chartype]) == (op == OP_PROP))
+          RRETURN(MATCH_NOMATCH);
+        break;
+
+        case PT_PC:
+        if ((ecode[2] != prop->chartype) == (op == OP_PROP))
+          RRETURN(MATCH_NOMATCH);
+        break;
+
+        case PT_SC:
+        if ((ecode[2] != prop->script) == (op == OP_PROP))
+          RRETURN(MATCH_NOMATCH);
+        break;
+
+        /* These are specials */
+
+        case PT_ALNUM:
+        if ((PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+             PRIV(ucp_gentype)[prop->chartype] == ucp_N) == (op == OP_NOTPROP))
+          RRETURN(MATCH_NOMATCH);
+        break;
+
+        case PT_SPACE:    /* Perl space */
+        if ((PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+             c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR)
+               == (op == OP_NOTPROP))
+          RRETURN(MATCH_NOMATCH);
+        break;
+
+        case PT_PXSPACE:  /* POSIX space */
+        if ((PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+             c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
+             c == CHAR_FF || c == CHAR_CR)
+               == (op == OP_NOTPROP))
+          RRETURN(MATCH_NOMATCH);
+        break;
+
+        case PT_WORD:
+        if ((PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+             PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
+             c == CHAR_UNDERSCORE) == (op == OP_NOTPROP))
+          RRETURN(MATCH_NOMATCH);
+        break;
+
+        /* This should never occur */
+
+        default:
+        RRETURN(PCRE_ERROR_INTERNAL);
+        }
+
+      ecode += 3;
+      }
+    break;
+
+    /* Match an extended Unicode sequence. We will get here only if the support
+    is in the binary; otherwise a compile-time error occurs. */
+
+    case OP_EXTUNI:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+    GETCHARINCTEST(c, eptr);
+    if (UCD_CATEGORY(c) == ucp_M) RRETURN(MATCH_NOMATCH);
+    while (eptr < md->end_subject)
+      {
+      int len = 1;
+      if (!utf) c = *eptr; else { GETCHARLEN(c, eptr, len); }
+      if (UCD_CATEGORY(c) != ucp_M) break;
+      eptr += len;
+      }
+    CHECK_PARTIAL();
+    ecode++;
+    break;
+#endif
+
+
+    /* Match a back reference, possibly repeatedly. Look past the end of the
+    item to see if there is repeat information following. The code is similar
+    to that for character classes, but repeated for efficiency. Then obey
+    similar code to character type repeats - written out again for speed.
+    However, if the referenced string is the empty string, always treat
+    it as matched, any number of times (otherwise there could be infinite
+    loops). */
+
+    case OP_REF:
+    case OP_REFI:
+    caseless = op == OP_REFI;
+    offset = GET2(ecode, 1) << 1;               /* Doubled ref number */
+    ecode += 1 + IMM2_SIZE;
+
+    /* If the reference is unset, there are two possibilities:
+
+    (a) In the default, Perl-compatible state, set the length negative;
+    this ensures that every attempt at a match fails. We can't just fail
+    here, because of the possibility of quantifiers with zero minima.
+
+    (b) If the JavaScript compatibility flag is set, set the length to zero
+    so that the back reference matches an empty string.
+
+    Otherwise, set the length to the length of what was matched by the
+    referenced subpattern. */
+
+    if (offset >= offset_top || md->offset_vector[offset] < 0)
+      length = (md->jscript_compat)? 0 : -1;
+    else
+      length = md->offset_vector[offset+1] - md->offset_vector[offset];
+
+    /* Set up for repetition, or handle the non-repeated case */
+
+    switch (*ecode)
+      {
+      case OP_CRSTAR:
+      case OP_CRMINSTAR:
+      case OP_CRPLUS:
+      case OP_CRMINPLUS:
+      case OP_CRQUERY:
+      case OP_CRMINQUERY:
+      c = *ecode++ - OP_CRSTAR;
+      minimize = (c & 1) != 0;
+      min = rep_min[c];                 /* Pick up values from tables; */
+      max = rep_max[c];                 /* zero for max => infinity */
+      if (max == 0) max = INT_MAX;
+      break;
+
+      case OP_CRRANGE:
+      case OP_CRMINRANGE:
+      minimize = (*ecode == OP_CRMINRANGE);
+      min = GET2(ecode, 1);
+      max = GET2(ecode, 1 + IMM2_SIZE);
+      if (max == 0) max = INT_MAX;
+      ecode += 1 + 2 * IMM2_SIZE;
+      break;
+
+      default:               /* No repeat follows */
+      if ((length = match_ref(offset, eptr, length, md, caseless)) < 0)
+        {
+        if (length == -2) eptr = md->end_subject;   /* Partial match */
+        CHECK_PARTIAL();
+        RRETURN(MATCH_NOMATCH);
+        }
+      eptr += length;
+      continue;              /* With the main loop */
+      }
+
+    /* Handle repeated back references. If the length of the reference is
+    zero, just continue with the main loop. If the length is negative, it
+    means the reference is unset in non-Java-compatible mode. If the minimum is
+    zero, we can continue at the same level without recursion. For any other
+    minimum, carrying on will result in NOMATCH. */
+
+    if (length == 0) continue;
+    if (length < 0 && min == 0) continue;
+
+    /* First, ensure the minimum number of matches are present. We get back
+    the length of the reference string explicitly rather than passing the
+    address of eptr, so that eptr can be a register variable. */
+
+    for (i = 1; i <= min; i++)
+      {
+      int slength;
+      if ((slength = match_ref(offset, eptr, length, md, caseless)) < 0)
+        {
+        if (slength == -2) eptr = md->end_subject;   /* Partial match */
+        CHECK_PARTIAL();
+        RRETURN(MATCH_NOMATCH);
+        }
+      eptr += slength;
+      }
+
+    /* If min = max, continue at the same level without recursion.
+    They are not both allowed to be zero. */
+
+    if (min == max) continue;
+
+    /* If minimizing, keep trying and advancing the pointer */
+
+    if (minimize)
+      {
+      for (fi = min;; fi++)
+        {
+        int slength;
+        RMATCH(eptr, ecode, offset_top, md, eptrb, RM14);
+        if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+        if (fi >= max) RRETURN(MATCH_NOMATCH);
+        if ((slength = match_ref(offset, eptr, length, md, caseless)) < 0)
+          {
+          if (slength == -2) eptr = md->end_subject;   /* Partial match */
+          CHECK_PARTIAL();
+          RRETURN(MATCH_NOMATCH);
+          }
+        eptr += slength;
+        }
+      /* Control never gets here */
+      }
+
+    /* If maximizing, find the longest string and work backwards */
+
+    else
+      {
+      pp = eptr;
+      for (i = min; i < max; i++)
+        {
+        int slength;
+        if ((slength = match_ref(offset, eptr, length, md, caseless)) < 0)
+          {
+          /* Can't use CHECK_PARTIAL because we don't want to update eptr in
+          the soft partial matching case. */
+
+          if (slength == -2 && md->partial != 0 &&
+              md->end_subject > md->start_used_ptr)
+            {
+            md->hitend = TRUE;
+            if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+            }
+          break;
+          }
+        eptr += slength;
+        }
+
+      while (eptr >= pp)
+        {
+        RMATCH(eptr, ecode, offset_top, md, eptrb, RM15);
+        if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+        eptr -= length;
+        }
+      RRETURN(MATCH_NOMATCH);
+      }
+    /* Control never gets here */
+
+    /* Match a bit-mapped character class, possibly repeatedly. This op code is
+    used when all the characters in the class have values in the range 0-255,
+    and either the matching is caseful, or the characters are in the range
+    0-127 when UTF-8 processing is enabled. The only difference between
+    OP_CLASS and OP_NCLASS occurs when a data character outside the range is
+    encountered.
+
+    First, look past the end of the item to see if there is repeat information
+    following. Then obey similar code to character type repeats - written out
+    again for speed. */
+
+    case OP_NCLASS:
+    case OP_CLASS:
+      {
+      /* The data variable is saved across frames, so the byte map needs to
+      be stored there. */
+#define BYTE_MAP ((pcre_uint8 *)data)
+      data = ecode + 1;                /* Save for matching */
+      ecode += 1 + (32 / sizeof(pcre_uchar)); /* Advance past the item */
+
+      switch (*ecode)
+        {
+        case OP_CRSTAR:
+        case OP_CRMINSTAR:
+        case OP_CRPLUS:
+        case OP_CRMINPLUS:
+        case OP_CRQUERY:
+        case OP_CRMINQUERY:
+        c = *ecode++ - OP_CRSTAR;
+        minimize = (c & 1) != 0;
+        min = rep_min[c];                 /* Pick up values from tables; */
+        max = rep_max[c];                 /* zero for max => infinity */
+        if (max == 0) max = INT_MAX;
+        break;
+
+        case OP_CRRANGE:
+        case OP_CRMINRANGE:
+        minimize = (*ecode == OP_CRMINRANGE);
+        min = GET2(ecode, 1);
+        max = GET2(ecode, 1 + IMM2_SIZE);
+        if (max == 0) max = INT_MAX;
+        ecode += 1 + 2 * IMM2_SIZE;
+        break;
+
+        default:               /* No repeat follows */
+        min = max = 1;
+        break;
+        }
+
+      /* First, ensure the minimum number of matches are present. */
+
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(c, eptr);
+          if (c > 255)
+            {
+            if (op == OP_CLASS) RRETURN(MATCH_NOMATCH);
+            }
+          else
+            if ((BYTE_MAP[c/8] & (1 << (c&7))) == 0) RRETURN(MATCH_NOMATCH);
+          }
+        }
+      else
+#endif
+      /* Not UTF mode */
+        {
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          c = *eptr++;
+#ifndef COMPILE_PCRE8
+          if (c > 255)
+            {
+            if (op == OP_CLASS) RRETURN(MATCH_NOMATCH);
+            }
+          else
+#endif
+            if ((BYTE_MAP[c/8] & (1 << (c&7))) == 0) RRETURN(MATCH_NOMATCH);
+          }
+        }
+
+      /* If max == min we can continue with the main loop without the
+      need to recurse. */
+
+      if (min == max) continue;
+
+      /* If minimizing, keep testing the rest of the expression and advancing
+      the pointer while it matches the class. */
+
+      if (minimize)
+        {
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM16);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINC(c, eptr);
+            if (c > 255)
+              {
+              if (op == OP_CLASS) RRETURN(MATCH_NOMATCH);
+              }
+            else
+              if ((BYTE_MAP[c/8] & (1 << (c&7))) == 0) RRETURN(MATCH_NOMATCH);
+            }
+          }
+        else
+#endif
+        /* Not UTF mode */
+          {
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM17);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            c = *eptr++;
+#ifndef COMPILE_PCRE8
+            if (c > 255)
+              {
+              if (op == OP_CLASS) RRETURN(MATCH_NOMATCH);
+              }
+            else
+#endif
+              if ((BYTE_MAP[c/8] & (1 << (c&7))) == 0) RRETURN(MATCH_NOMATCH);
+            }
+          }
+        /* Control never gets here */
+        }
+
+      /* If maximizing, find the longest possible run, then work backwards. */
+
+      else
+        {
+        pp = eptr;
+
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            if (c > 255)
+              {
+              if (op == OP_CLASS) break;
+              }
+            else
+              if ((BYTE_MAP[c/8] & (1 << (c&7))) == 0) break;
+            eptr += len;
+            }
+          for (;;)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM18);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (eptr-- == pp) break;        /* Stop if tried at original pos */
+            BACKCHAR(eptr);
+            }
+          }
+        else
+#endif
+          /* Not UTF mode */
+          {
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            c = *eptr;
+#ifndef COMPILE_PCRE8
+            if (c > 255)
+              {
+              if (op == OP_CLASS) break;
+              }
+            else
+#endif
+              if ((BYTE_MAP[c/8] & (1 << (c&7))) == 0) break;
+            eptr++;
+            }
+          while (eptr >= pp)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM19);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            eptr--;
+            }
+          }
+
+        RRETURN(MATCH_NOMATCH);
+        }
+#undef BYTE_MAP
+      }
+    /* Control never gets here */
+
+
+    /* Match an extended character class. This opcode is encountered only
+    when UTF-8 mode mode is supported. Nevertheless, we may not be in UTF-8
+    mode, because Unicode properties are supported in non-UTF-8 mode. */
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+    case OP_XCLASS:
+      {
+      data = ecode + 1 + LINK_SIZE;                /* Save for matching */
+      ecode += GET(ecode, 1);                      /* Advance past the item */
+
+      switch (*ecode)
+        {
+        case OP_CRSTAR:
+        case OP_CRMINSTAR:
+        case OP_CRPLUS:
+        case OP_CRMINPLUS:
+        case OP_CRQUERY:
+        case OP_CRMINQUERY:
+        c = *ecode++ - OP_CRSTAR;
+        minimize = (c & 1) != 0;
+        min = rep_min[c];                 /* Pick up values from tables; */
+        max = rep_max[c];                 /* zero for max => infinity */
+        if (max == 0) max = INT_MAX;
+        break;
+
+        case OP_CRRANGE:
+        case OP_CRMINRANGE:
+        minimize = (*ecode == OP_CRMINRANGE);
+        min = GET2(ecode, 1);
+        max = GET2(ecode, 1 + IMM2_SIZE);
+        if (max == 0) max = INT_MAX;
+        ecode += 1 + 2 * IMM2_SIZE;
+        break;
+
+        default:               /* No repeat follows */
+        min = max = 1;
+        break;
+        }
+
+      /* First, ensure the minimum number of matches are present. */
+
+      for (i = 1; i <= min; i++)
+        {
+        if (eptr >= md->end_subject)
+          {
+          SCHECK_PARTIAL();
+          RRETURN(MATCH_NOMATCH);
+          }
+        GETCHARINCTEST(c, eptr);
+        if (!PRIV(xclass)(c, data, utf)) RRETURN(MATCH_NOMATCH);
+        }
+
+      /* If max == min we can continue with the main loop without the
+      need to recurse. */
+
+      if (min == max) continue;
+
+      /* If minimizing, keep testing the rest of the expression and advancing
+      the pointer while it matches the class. */
+
+      if (minimize)
+        {
+        for (fi = min;; fi++)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM20);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (fi >= max) RRETURN(MATCH_NOMATCH);
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINCTEST(c, eptr);
+          if (!PRIV(xclass)(c, data, utf)) RRETURN(MATCH_NOMATCH);
+          }
+        /* Control never gets here */
+        }
+
+      /* If maximizing, find the longest possible run, then work backwards. */
+
+      else
+        {
+        pp = eptr;
+        for (i = min; i < max; i++)
+          {
+          int len = 1;
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            break;
+            }
+#ifdef SUPPORT_UTF
+          GETCHARLENTEST(c, eptr, len);
+#else
+          c = *eptr;
+#endif
+          if (!PRIV(xclass)(c, data, utf)) break;
+          eptr += len;
+          }
+        for(;;)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM21);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (eptr-- == pp) break;        /* Stop if tried at original pos */
+#ifdef SUPPORT_UTF
+          if (utf) BACKCHAR(eptr);
+#endif
+          }
+        RRETURN(MATCH_NOMATCH);
+        }
+
+      /* Control never gets here */
+      }
+#endif    /* End of XCLASS */
+
+    /* Match a single character, casefully */
+
+    case OP_CHAR:
+#ifdef SUPPORT_UTF
+    if (utf)
+      {
+      length = 1;
+      ecode++;
+      GETCHARLEN(fc, ecode, length);
+      if (length > md->end_subject - eptr)
+        {
+        CHECK_PARTIAL();             /* Not SCHECK_PARTIAL() */
+        RRETURN(MATCH_NOMATCH);
+        }
+      while (length-- > 0) if (*ecode++ != *eptr++) RRETURN(MATCH_NOMATCH);
+      }
+    else
+#endif
+    /* Not UTF mode */
+      {
+      if (md->end_subject - eptr < 1)
+        {
+        SCHECK_PARTIAL();            /* This one can use SCHECK_PARTIAL() */
+        RRETURN(MATCH_NOMATCH);
+        }
+      if (ecode[1] != *eptr++) RRETURN(MATCH_NOMATCH);
+      ecode += 2;
+      }
+    break;
+
+    /* Match a single character, caselessly. If we are at the end of the
+    subject, give up immediately. */
+
+    case OP_CHARI:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+
+#ifdef SUPPORT_UTF
+    if (utf)
+      {
+      length = 1;
+      ecode++;
+      GETCHARLEN(fc, ecode, length);
+
+      /* If the pattern character's value is < 128, we have only one byte, and
+      we know that its other case must also be one byte long, so we can use the
+      fast lookup table. We know that there is at least one byte left in the
+      subject. */
+
+      if (fc < 128)
+        {
+        if (md->lcc[fc]
+            != TABLE_GET(*eptr, md->lcc, *eptr)) RRETURN(MATCH_NOMATCH);
+        ecode++;
+        eptr++;
+        }
+
+      /* Otherwise we must pick up the subject character. Note that we cannot
+      use the value of "length" to check for sufficient bytes left, because the
+      other case of the character may have more or fewer bytes.  */
+
+      else
+        {
+        unsigned int dc;
+        GETCHARINC(dc, eptr);
+        ecode += length;
+
+        /* If we have Unicode property support, we can use it to test the other
+        case of the character, if there is one. */
+
+        if (fc != dc)
+          {
+#ifdef SUPPORT_UCP
+          if (dc != UCD_OTHERCASE(fc))
+#endif
+            RRETURN(MATCH_NOMATCH);
+          }
+        }
+      }
+    else
+#endif   /* SUPPORT_UTF */
+
+    /* Not UTF mode */
+      {
+      if (TABLE_GET(ecode[1], md->lcc, ecode[1])
+          != TABLE_GET(*eptr, md->lcc, *eptr)) RRETURN(MATCH_NOMATCH);
+      eptr++;
+      ecode += 2;
+      }
+    break;
+
+    /* Match a single character repeatedly. */
+
+    case OP_EXACT:
+    case OP_EXACTI:
+    min = max = GET2(ecode, 1);
+    ecode += 1 + IMM2_SIZE;
+    goto REPEATCHAR;
+
+    case OP_POSUPTO:
+    case OP_POSUPTOI:
+    possessive = TRUE;
+    /* Fall through */
+
+    case OP_UPTO:
+    case OP_UPTOI:
+    case OP_MINUPTO:
+    case OP_MINUPTOI:
+    min = 0;
+    max = GET2(ecode, 1);
+    minimize = *ecode == OP_MINUPTO || *ecode == OP_MINUPTOI;
+    ecode += 1 + IMM2_SIZE;
+    goto REPEATCHAR;
+
+    case OP_POSSTAR:
+    case OP_POSSTARI:
+    possessive = TRUE;
+    min = 0;
+    max = INT_MAX;
+    ecode++;
+    goto REPEATCHAR;
+
+    case OP_POSPLUS:
+    case OP_POSPLUSI:
+    possessive = TRUE;
+    min = 1;
+    max = INT_MAX;
+    ecode++;
+    goto REPEATCHAR;
+
+    case OP_POSQUERY:
+    case OP_POSQUERYI:
+    possessive = TRUE;
+    min = 0;
+    max = 1;
+    ecode++;
+    goto REPEATCHAR;
+
+    case OP_STAR:
+    case OP_STARI:
+    case OP_MINSTAR:
+    case OP_MINSTARI:
+    case OP_PLUS:
+    case OP_PLUSI:
+    case OP_MINPLUS:
+    case OP_MINPLUSI:
+    case OP_QUERY:
+    case OP_QUERYI:
+    case OP_MINQUERY:
+    case OP_MINQUERYI:
+    c = *ecode++ - ((op < OP_STARI)? OP_STAR : OP_STARI);
+    minimize = (c & 1) != 0;
+    min = rep_min[c];                 /* Pick up values from tables; */
+    max = rep_max[c];                 /* zero for max => infinity */
+    if (max == 0) max = INT_MAX;
+
+    /* Common code for all repeated single-character matches. */
+
+    REPEATCHAR:
+#ifdef SUPPORT_UTF
+    if (utf)
+      {
+      length = 1;
+      charptr = ecode;
+      GETCHARLEN(fc, ecode, length);
+      ecode += length;
+
+      /* Handle multibyte character matching specially here. There is
+      support for caseless matching if UCP support is present. */
+
+      if (length > 1)
+        {
+#ifdef SUPPORT_UCP
+        unsigned int othercase;
+        if (op >= OP_STARI &&     /* Caseless */
+            (othercase = UCD_OTHERCASE(fc)) != fc)
+          oclength = PRIV(ord2utf)(othercase, occhars);
+        else oclength = 0;
+#endif  /* SUPPORT_UCP */
+
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr <= md->end_subject - length &&
+            memcmp(eptr, charptr, IN_UCHARS(length)) == 0) eptr += length;
+#ifdef SUPPORT_UCP
+          else if (oclength > 0 &&
+                   eptr <= md->end_subject - oclength &&
+                   memcmp(eptr, occhars, IN_UCHARS(oclength)) == 0) eptr += oclength;
+#endif  /* SUPPORT_UCP */
+          else
+            {
+            CHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          }
+
+        if (min == max) continue;
+
+        if (minimize)
+          {
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM22);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr <= md->end_subject - length &&
+              memcmp(eptr, charptr, IN_UCHARS(length)) == 0) eptr += length;
+#ifdef SUPPORT_UCP
+            else if (oclength > 0 &&
+                     eptr <= md->end_subject - oclength &&
+                     memcmp(eptr, occhars, IN_UCHARS(oclength)) == 0) eptr += oclength;
+#endif  /* SUPPORT_UCP */
+            else
+              {
+              CHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            }
+          /* Control never gets here */
+          }
+
+        else  /* Maximize */
+          {
+          pp = eptr;
+          for (i = min; i < max; i++)
+            {
+            if (eptr <= md->end_subject - length &&
+                memcmp(eptr, charptr, IN_UCHARS(length)) == 0) eptr += length;
+#ifdef SUPPORT_UCP
+            else if (oclength > 0 &&
+                     eptr <= md->end_subject - oclength &&
+                     memcmp(eptr, occhars, IN_UCHARS(oclength)) == 0) eptr += oclength;
+#endif  /* SUPPORT_UCP */
+            else
+              {
+              CHECK_PARTIAL();
+              break;
+              }
+            }
+
+          if (possessive) continue;
+
+          for(;;)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM23);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (eptr == pp) { RRETURN(MATCH_NOMATCH); }
+#ifdef SUPPORT_UCP
+            eptr--;
+            BACKCHAR(eptr);
+#else   /* without SUPPORT_UCP */
+            eptr -= length;
+#endif  /* SUPPORT_UCP */
+            }
+          }
+        /* Control never gets here */
+        }
+
+      /* If the length of a UTF-8 character is 1, we fall through here, and
+      obey the code as for non-UTF-8 characters below, though in this case the
+      value of fc will always be < 128. */
+      }
+    else
+#endif  /* SUPPORT_UTF */
+      /* When not in UTF-8 mode, load a single-byte character. */
+      fc = *ecode++;
+
+    /* The value of fc at this point is always one character, though we may
+    or may not be in UTF mode. The code is duplicated for the caseless and
+    caseful cases, for speed, since matching characters is likely to be quite
+    common. First, ensure the minimum number of matches are present. If min =
+    max, continue at the same level without recursing. Otherwise, if
+    minimizing, keep trying the rest of the expression and advancing one
+    matching character if failing, up to the maximum. Alternatively, if
+    maximizing, find the maximum number of characters and work backwards. */
+
+    DPRINTF(("matching %c{%d,%d} against subject %.*s\n", fc, min, max,
+      max, (char *)eptr));
+
+    if (op >= OP_STARI)  /* Caseless */
+      {
+#ifdef COMPILE_PCRE8
+      /* fc must be < 128 if UTF is enabled. */
+      foc = md->fcc[fc];
+#else
+#ifdef SUPPORT_UTF
+#ifdef SUPPORT_UCP
+      if (utf && fc > 127)
+        foc = UCD_OTHERCASE(fc);
+#else
+      if (utf && fc > 127)
+        foc = fc;
+#endif /* SUPPORT_UCP */
+      else
+#endif /* SUPPORT_UTF */
+        foc = TABLE_GET(fc, md->fcc, fc);
+#endif /* COMPILE_PCRE8 */
+
+      for (i = 1; i <= min; i++)
+        {
+        if (eptr >= md->end_subject)
+          {
+          SCHECK_PARTIAL();
+          RRETURN(MATCH_NOMATCH);
+          }
+        if (fc != *eptr && foc != *eptr) RRETURN(MATCH_NOMATCH);
+        eptr++;
+        }
+      if (min == max) continue;
+      if (minimize)
+        {
+        for (fi = min;; fi++)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM24);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (fi >= max) RRETURN(MATCH_NOMATCH);
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (fc != *eptr && foc != *eptr) RRETURN(MATCH_NOMATCH);
+          eptr++;
+          }
+        /* Control never gets here */
+        }
+      else  /* Maximize */
+        {
+        pp = eptr;
+        for (i = min; i < max; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            break;
+            }
+          if (fc != *eptr && foc != *eptr) break;
+          eptr++;
+          }
+
+        if (possessive) continue;
+
+        while (eptr >= pp)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM25);
+          eptr--;
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          }
+        RRETURN(MATCH_NOMATCH);
+        }
+      /* Control never gets here */
+      }
+
+    /* Caseful comparisons (includes all multi-byte characters) */
+
+    else
+      {
+      for (i = 1; i <= min; i++)
+        {
+        if (eptr >= md->end_subject)
+          {
+          SCHECK_PARTIAL();
+          RRETURN(MATCH_NOMATCH);
+          }
+        if (fc != *eptr++) RRETURN(MATCH_NOMATCH);
+        }
+
+      if (min == max) continue;
+
+      if (minimize)
+        {
+        for (fi = min;; fi++)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM26);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (fi >= max) RRETURN(MATCH_NOMATCH);
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (fc != *eptr++) RRETURN(MATCH_NOMATCH);
+          }
+        /* Control never gets here */
+        }
+      else  /* Maximize */
+        {
+        pp = eptr;
+        for (i = min; i < max; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            break;
+            }
+          if (fc != *eptr) break;
+          eptr++;
+          }
+        if (possessive) continue;
+
+        while (eptr >= pp)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM27);
+          eptr--;
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          }
+        RRETURN(MATCH_NOMATCH);
+        }
+      }
+    /* Control never gets here */
+
+    /* Match a negated single one-byte character. The character we are
+    checking can be multibyte. */
+
+    case OP_NOT:
+    case OP_NOTI:
+    if (eptr >= md->end_subject)
+      {
+      SCHECK_PARTIAL();
+      RRETURN(MATCH_NOMATCH);
+      }
+#ifdef SUPPORT_UTF
+    if (utf)
+      {
+      register unsigned int ch, och;
+
+      ecode++;
+      GETCHARINC(ch, ecode);
+      GETCHARINC(c, eptr);
+
+      if (op == OP_NOT)
+        {
+        if (ch == c) RRETURN(MATCH_NOMATCH);
+        }
+      else
+        {
+#ifdef SUPPORT_UCP
+        if (ch > 127)
+          och = UCD_OTHERCASE(ch);
+#else
+        if (ch > 127)
+          och = ch;
+#endif /* SUPPORT_UCP */
+        else
+          och = TABLE_GET(ch, md->fcc, ch);
+        if (ch == c || och == c) RRETURN(MATCH_NOMATCH);
+        }
+      }
+    else
+#endif
+      {
+      register unsigned int ch = ecode[1];
+      c = *eptr++;
+      if (ch == c || (op == OP_NOTI && TABLE_GET(ch, md->fcc, ch) == c))
+        RRETURN(MATCH_NOMATCH);
+      ecode += 2;
+      }
+    break;
+
+    /* Match a negated single one-byte character repeatedly. This is almost a
+    repeat of the code for a repeated single character, but I haven't found a
+    nice way of commoning these up that doesn't require a test of the
+    positive/negative option for each character match. Maybe that wouldn't add
+    very much to the time taken, but character matching *is* what this is all
+    about... */
+
+    case OP_NOTEXACT:
+    case OP_NOTEXACTI:
+    min = max = GET2(ecode, 1);
+    ecode += 1 + IMM2_SIZE;
+    goto REPEATNOTCHAR;
+
+    case OP_NOTUPTO:
+    case OP_NOTUPTOI:
+    case OP_NOTMINUPTO:
+    case OP_NOTMINUPTOI:
+    min = 0;
+    max = GET2(ecode, 1);
+    minimize = *ecode == OP_NOTMINUPTO || *ecode == OP_NOTMINUPTOI;
+    ecode += 1 + IMM2_SIZE;
+    goto REPEATNOTCHAR;
+
+    case OP_NOTPOSSTAR:
+    case OP_NOTPOSSTARI:
+    possessive = TRUE;
+    min = 0;
+    max = INT_MAX;
+    ecode++;
+    goto REPEATNOTCHAR;
+
+    case OP_NOTPOSPLUS:
+    case OP_NOTPOSPLUSI:
+    possessive = TRUE;
+    min = 1;
+    max = INT_MAX;
+    ecode++;
+    goto REPEATNOTCHAR;
+
+    case OP_NOTPOSQUERY:
+    case OP_NOTPOSQUERYI:
+    possessive = TRUE;
+    min = 0;
+    max = 1;
+    ecode++;
+    goto REPEATNOTCHAR;
+
+    case OP_NOTPOSUPTO:
+    case OP_NOTPOSUPTOI:
+    possessive = TRUE;
+    min = 0;
+    max = GET2(ecode, 1);
+    ecode += 1 + IMM2_SIZE;
+    goto REPEATNOTCHAR;
+
+    case OP_NOTSTAR:
+    case OP_NOTSTARI:
+    case OP_NOTMINSTAR:
+    case OP_NOTMINSTARI:
+    case OP_NOTPLUS:
+    case OP_NOTPLUSI:
+    case OP_NOTMINPLUS:
+    case OP_NOTMINPLUSI:
+    case OP_NOTQUERY:
+    case OP_NOTQUERYI:
+    case OP_NOTMINQUERY:
+    case OP_NOTMINQUERYI:
+    c = *ecode++ - ((op >= OP_NOTSTARI)? OP_NOTSTARI: OP_NOTSTAR);
+    minimize = (c & 1) != 0;
+    min = rep_min[c];                 /* Pick up values from tables; */
+    max = rep_max[c];                 /* zero for max => infinity */
+    if (max == 0) max = INT_MAX;
+
+    /* Common code for all repeated single-byte matches. */
+
+    REPEATNOTCHAR:
+    GETCHARINCTEST(fc, ecode);
+
+    /* The code is duplicated for the caseless and caseful cases, for speed,
+    since matching characters is likely to be quite common. First, ensure the
+    minimum number of matches are present. If min = max, continue at the same
+    level without recursing. Otherwise, if minimizing, keep trying the rest of
+    the expression and advancing one matching character if failing, up to the
+    maximum. Alternatively, if maximizing, find the maximum number of
+    characters and work backwards. */
+
+    DPRINTF(("negative matching %c{%d,%d} against subject %.*s\n", fc, min, max,
+      max, (char *)eptr));
+
+    if (op >= OP_NOTSTARI)     /* Caseless */
+      {
+#ifdef SUPPORT_UTF
+#ifdef SUPPORT_UCP
+      if (utf && fc > 127)
+        foc = UCD_OTHERCASE(fc);
+#else
+      if (utf && fc > 127)
+        foc = fc;
+#endif /* SUPPORT_UCP */
+      else
+#endif /* SUPPORT_UTF */
+        foc = TABLE_GET(fc, md->fcc, fc);
+
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+        register unsigned int d;
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(d, eptr);
+          if (fc == d || (unsigned int)foc == d) RRETURN(MATCH_NOMATCH);
+          }
+        }
+      else
+#endif
+      /* Not UTF mode */
+        {
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (fc == *eptr || foc == *eptr) RRETURN(MATCH_NOMATCH);
+          eptr++;
+          }
+        }
+
+      if (min == max) continue;
+
+      if (minimize)
+        {
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+          register unsigned int d;
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM28);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINC(d, eptr);
+            if (fc == d || (unsigned int)foc == d) RRETURN(MATCH_NOMATCH);
+            }
+          }
+        else
+#endif
+        /* Not UTF mode */
+          {
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM29);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            if (fc == *eptr || foc == *eptr) RRETURN(MATCH_NOMATCH);
+            eptr++;
+            }
+          }
+        /* Control never gets here */
+        }
+
+      /* Maximize case */
+
+      else
+        {
+        pp = eptr;
+
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+          register unsigned int d;
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(d, eptr, len);
+            if (fc == d || (unsigned int)foc == d) break;
+            eptr += len;
+            }
+          if (possessive) continue;
+          for(;;)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM30);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (eptr-- == pp) break;        /* Stop if tried at original pos */
+            BACKCHAR(eptr);
+            }
+          }
+        else
+#endif
+        /* Not UTF mode */
+          {
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (fc == *eptr || foc == *eptr) break;
+            eptr++;
+            }
+          if (possessive) continue;
+          while (eptr >= pp)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM31);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            eptr--;
+            }
+          }
+
+        RRETURN(MATCH_NOMATCH);
+        }
+      /* Control never gets here */
+      }
+
+    /* Caseful comparisons */
+
+    else
+      {
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+        register unsigned int d;
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(d, eptr);
+          if (fc == d) RRETURN(MATCH_NOMATCH);
+          }
+        }
+      else
+#endif
+      /* Not UTF mode */
+        {
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (fc == *eptr++) RRETURN(MATCH_NOMATCH);
+          }
+        }
+
+      if (min == max) continue;
+
+      if (minimize)
+        {
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+          register unsigned int d;
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM32);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINC(d, eptr);
+            if (fc == d) RRETURN(MATCH_NOMATCH);
+            }
+          }
+        else
+#endif
+        /* Not UTF mode */
+          {
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM33);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            if (fc == *eptr++) RRETURN(MATCH_NOMATCH);
+            }
+          }
+        /* Control never gets here */
+        }
+
+      /* Maximize case */
+
+      else
+        {
+        pp = eptr;
+
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+          register unsigned int d;
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(d, eptr, len);
+            if (fc == d) break;
+            eptr += len;
+            }
+          if (possessive) continue;
+          for(;;)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM34);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (eptr-- == pp) break;        /* Stop if tried at original pos */
+            BACKCHAR(eptr);
+            }
+          }
+        else
+#endif
+        /* Not UTF mode */
+          {
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (fc == *eptr) break;
+            eptr++;
+            }
+          if (possessive) continue;
+          while (eptr >= pp)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM35);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            eptr--;
+            }
+          }
+
+        RRETURN(MATCH_NOMATCH);
+        }
+      }
+    /* Control never gets here */
+
+    /* Match a single character type repeatedly; several different opcodes
+    share code. This is very similar to the code for single characters, but we
+    repeat it in the interests of efficiency. */
+
+    case OP_TYPEEXACT:
+    min = max = GET2(ecode, 1);
+    minimize = TRUE;
+    ecode += 1 + IMM2_SIZE;
+    goto REPEATTYPE;
+
+    case OP_TYPEUPTO:
+    case OP_TYPEMINUPTO:
+    min = 0;
+    max = GET2(ecode, 1);
+    minimize = *ecode == OP_TYPEMINUPTO;
+    ecode += 1 + IMM2_SIZE;
+    goto REPEATTYPE;
+
+    case OP_TYPEPOSSTAR:
+    possessive = TRUE;
+    min = 0;
+    max = INT_MAX;
+    ecode++;
+    goto REPEATTYPE;
+
+    case OP_TYPEPOSPLUS:
+    possessive = TRUE;
+    min = 1;
+    max = INT_MAX;
+    ecode++;
+    goto REPEATTYPE;
+
+    case OP_TYPEPOSQUERY:
+    possessive = TRUE;
+    min = 0;
+    max = 1;
+    ecode++;
+    goto REPEATTYPE;
+
+    case OP_TYPEPOSUPTO:
+    possessive = TRUE;
+    min = 0;
+    max = GET2(ecode, 1);
+    ecode += 1 + IMM2_SIZE;
+    goto REPEATTYPE;
+
+    case OP_TYPESTAR:
+    case OP_TYPEMINSTAR:
+    case OP_TYPEPLUS:
+    case OP_TYPEMINPLUS:
+    case OP_TYPEQUERY:
+    case OP_TYPEMINQUERY:
+    c = *ecode++ - OP_TYPESTAR;
+    minimize = (c & 1) != 0;
+    min = rep_min[c];                 /* Pick up values from tables; */
+    max = rep_max[c];                 /* zero for max => infinity */
+    if (max == 0) max = INT_MAX;
+
+    /* Common code for all repeated single character type matches. Note that
+    in UTF-8 mode, '.' matches a character of any length, but for the other
+    character types, the valid characters are all one-byte long. */
+
+    REPEATTYPE:
+    ctype = *ecode++;      /* Code for the character type */
+
+#ifdef SUPPORT_UCP
+    if (ctype == OP_PROP || ctype == OP_NOTPROP)
+      {
+      prop_fail_result = ctype == OP_NOTPROP;
+      prop_type = *ecode++;
+      prop_value = *ecode++;
+      }
+    else prop_type = -1;
+#endif
+
+    /* First, ensure the minimum number of matches are present. Use inline
+    code for maximizing the speed, and do the type test once at the start
+    (i.e. keep it out of the loop). Separate the UTF-8 code completely as that
+    is tidier. Also separate the UCP code, which can be the same for both UTF-8
+    and single-bytes. */
+
+    if (min > 0)
+      {
+#ifdef SUPPORT_UCP
+      if (prop_type >= 0)
+        {
+        switch(prop_type)
+          {
+          case PT_ANY:
+          if (prop_fail_result) RRETURN(MATCH_NOMATCH);
+          for (i = 1; i <= min; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            }
+          break;
+
+          case PT_LAMP:
+          for (i = 1; i <= min; i++)
+            {
+            int chartype;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            chartype = UCD_CHARTYPE(c);
+            if ((chartype == ucp_Lu ||
+                 chartype == ucp_Ll ||
+                 chartype == ucp_Lt) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          break;
+
+          case PT_GC:
+          for (i = 1; i <= min; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_CATEGORY(c) == prop_value) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          break;
+
+          case PT_PC:
+          for (i = 1; i <= min; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_CHARTYPE(c) == prop_value) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          break;
+
+          case PT_SC:
+          for (i = 1; i <= min; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_SCRIPT(c) == prop_value) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          break;
+
+          case PT_ALNUM:
+          for (i = 1; i <= min; i++)
+            {
+            int category;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            category = UCD_CATEGORY(c);
+            if ((category == ucp_L || category == ucp_N) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          break;
+
+          case PT_SPACE:    /* Perl space */
+          for (i = 1; i <= min; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_CATEGORY(c) == ucp_Z || c == CHAR_HT || c == CHAR_NL ||
+                 c == CHAR_FF || c == CHAR_CR)
+                   == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          break;
+
+          case PT_PXSPACE:  /* POSIX space */
+          for (i = 1; i <= min; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_CATEGORY(c) == ucp_Z || c == CHAR_HT || c == CHAR_NL ||
+                 c == CHAR_VT || c == CHAR_FF || c == CHAR_CR)
+                   == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          break;
+
+          case PT_WORD:
+          for (i = 1; i <= min; i++)
+            {
+            int category;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            category = UCD_CATEGORY(c);
+            if ((category == ucp_L || category == ucp_N || c == CHAR_UNDERSCORE)
+                   == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          break;
+
+          /* This should not occur */
+
+          default:
+          RRETURN(PCRE_ERROR_INTERNAL);
+          }
+        }
+
+      /* Match extended Unicode sequences. We will get here only if the
+      support is in the binary; otherwise a compile-time error occurs. */
+
+      else if (ctype == OP_EXTUNI)
+        {
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINCTEST(c, eptr);
+          if (UCD_CATEGORY(c) == ucp_M) RRETURN(MATCH_NOMATCH);
+          while (eptr < md->end_subject)
+            {
+            int len = 1;
+            if (!utf) c = *eptr; else { GETCHARLEN(c, eptr, len); }
+            if (UCD_CATEGORY(c) != ucp_M) break;
+            eptr += len;
+            }
+          CHECK_PARTIAL();
+          }
+        }
+
+      else
+#endif     /* SUPPORT_UCP */
+
+/* Handle all other cases when the coding is UTF-8 */
+
+#ifdef SUPPORT_UTF
+      if (utf) switch(ctype)
+        {
+        case OP_ANY:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (IS_NEWLINE(eptr)) RRETURN(MATCH_NOMATCH);
+          if (md->partial != 0 &&
+              eptr + 1 >= md->end_subject &&
+              NLBLOCK->nltype == NLTYPE_FIXED &&
+              NLBLOCK->nllen == 2 &&
+              *eptr == NLBLOCK->nl[0])
+            {
+            md->hitend = TRUE;
+            if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+            }
+          eptr++;
+          ACROSSCHAR(eptr < md->end_subject, *eptr, eptr++);
+          }
+        break;
+
+        case OP_ALLANY:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          eptr++;
+          ACROSSCHAR(eptr < md->end_subject, *eptr, eptr++);
+          }
+        break;
+
+        case OP_ANYBYTE:
+        if (eptr > md->end_subject - min) RRETURN(MATCH_NOMATCH);
+        eptr += min;
+        break;
+
+        case OP_ANYNL:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(c, eptr);
+          switch(c)
+            {
+            default: RRETURN(MATCH_NOMATCH);
+
+            case 0x000d:
+            if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
+            break;
+
+            case 0x000a:
+            break;
+
+            case 0x000b:
+            case 0x000c:
+            case 0x0085:
+            case 0x2028:
+            case 0x2029:
+            if (md->bsr_anycrlf) RRETURN(MATCH_NOMATCH);
+            break;
+            }
+          }
+        break;
+
+        case OP_NOT_HSPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(c, eptr);
+          switch(c)
+            {
+            default: break;
+            case 0x09:      /* HT */
+            case 0x20:      /* SPACE */
+            case 0xa0:      /* NBSP */
+            case 0x1680:    /* OGHAM SPACE MARK */
+            case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+            case 0x2000:    /* EN QUAD */
+            case 0x2001:    /* EM QUAD */
+            case 0x2002:    /* EN SPACE */
+            case 0x2003:    /* EM SPACE */
+            case 0x2004:    /* THREE-PER-EM SPACE */
+            case 0x2005:    /* FOUR-PER-EM SPACE */
+            case 0x2006:    /* SIX-PER-EM SPACE */
+            case 0x2007:    /* FIGURE SPACE */
+            case 0x2008:    /* PUNCTUATION SPACE */
+            case 0x2009:    /* THIN SPACE */
+            case 0x200A:    /* HAIR SPACE */
+            case 0x202f:    /* NARROW NO-BREAK SPACE */
+            case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+            case 0x3000:    /* IDEOGRAPHIC SPACE */
+            RRETURN(MATCH_NOMATCH);
+            }
+          }
+        break;
+
+        case OP_HSPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(c, eptr);
+          switch(c)
+            {
+            default: RRETURN(MATCH_NOMATCH);
+            case 0x09:      /* HT */
+            case 0x20:      /* SPACE */
+            case 0xa0:      /* NBSP */
+            case 0x1680:    /* OGHAM SPACE MARK */
+            case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+            case 0x2000:    /* EN QUAD */
+            case 0x2001:    /* EM QUAD */
+            case 0x2002:    /* EN SPACE */
+            case 0x2003:    /* EM SPACE */
+            case 0x2004:    /* THREE-PER-EM SPACE */
+            case 0x2005:    /* FOUR-PER-EM SPACE */
+            case 0x2006:    /* SIX-PER-EM SPACE */
+            case 0x2007:    /* FIGURE SPACE */
+            case 0x2008:    /* PUNCTUATION SPACE */
+            case 0x2009:    /* THIN SPACE */
+            case 0x200A:    /* HAIR SPACE */
+            case 0x202f:    /* NARROW NO-BREAK SPACE */
+            case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+            case 0x3000:    /* IDEOGRAPHIC SPACE */
+            break;
+            }
+          }
+        break;
+
+        case OP_NOT_VSPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(c, eptr);
+          switch(c)
+            {
+            default: break;
+            case 0x0a:      /* LF */
+            case 0x0b:      /* VT */
+            case 0x0c:      /* FF */
+            case 0x0d:      /* CR */
+            case 0x85:      /* NEL */
+            case 0x2028:    /* LINE SEPARATOR */
+            case 0x2029:    /* PARAGRAPH SEPARATOR */
+            RRETURN(MATCH_NOMATCH);
+            }
+          }
+        break;
+
+        case OP_VSPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(c, eptr);
+          switch(c)
+            {
+            default: RRETURN(MATCH_NOMATCH);
+            case 0x0a:      /* LF */
+            case 0x0b:      /* VT */
+            case 0x0c:      /* FF */
+            case 0x0d:      /* CR */
+            case 0x85:      /* NEL */
+            case 0x2028:    /* LINE SEPARATOR */
+            case 0x2029:    /* PARAGRAPH SEPARATOR */
+            break;
+            }
+          }
+        break;
+
+        case OP_NOT_DIGIT:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINC(c, eptr);
+          if (c < 128 && (md->ctypes[c] & ctype_digit) != 0)
+            RRETURN(MATCH_NOMATCH);
+          }
+        break;
+
+        case OP_DIGIT:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (*eptr >= 128 || (md->ctypes[*eptr] & ctype_digit) == 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          /* No need to skip more bytes - we know it's a 1-byte character */
+          }
+        break;
+
+        case OP_NOT_WHITESPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (*eptr < 128 && (md->ctypes[*eptr] & ctype_space) != 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          ACROSSCHAR(eptr < md->end_subject, *eptr, eptr++);
+          }
+        break;
+
+        case OP_WHITESPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (*eptr >= 128 || (md->ctypes[*eptr] & ctype_space) == 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          /* No need to skip more bytes - we know it's a 1-byte character */
+          }
+        break;
+
+        case OP_NOT_WORDCHAR:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (*eptr < 128 && (md->ctypes[*eptr] & ctype_word) != 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          ACROSSCHAR(eptr < md->end_subject, *eptr, eptr++);
+          }
+        break;
+
+        case OP_WORDCHAR:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (*eptr >= 128 || (md->ctypes[*eptr] & ctype_word) == 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          /* No need to skip more bytes - we know it's a 1-byte character */
+          }
+        break;
+
+        default:
+        RRETURN(PCRE_ERROR_INTERNAL);
+        }  /* End switch(ctype) */
+
+      else
+#endif     /* SUPPORT_UTF */
+
+      /* Code for the non-UTF-8 case for minimum matching of operators other
+      than OP_PROP and OP_NOTPROP. */
+
+      switch(ctype)
+        {
+        case OP_ANY:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (IS_NEWLINE(eptr)) RRETURN(MATCH_NOMATCH);
+          if (md->partial != 0 &&
+              eptr + 1 >= md->end_subject &&
+              NLBLOCK->nltype == NLTYPE_FIXED &&
+              NLBLOCK->nllen == 2 &&
+              *eptr == NLBLOCK->nl[0])
+            {
+            md->hitend = TRUE;
+            if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+            }
+          eptr++;
+          }
+        break;
+
+        case OP_ALLANY:
+        if (eptr > md->end_subject - min)
+          {
+          SCHECK_PARTIAL();
+          RRETURN(MATCH_NOMATCH);
+          }
+        eptr += min;
+        break;
+
+        case OP_ANYBYTE:
+        if (eptr > md->end_subject - min)
+          {
+          SCHECK_PARTIAL();
+          RRETURN(MATCH_NOMATCH);
+          }
+        eptr += min;
+        break;
+
+        case OP_ANYNL:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          switch(*eptr++)
+            {
+            default: RRETURN(MATCH_NOMATCH);
+
+            case 0x000d:
+            if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
+            break;
+
+            case 0x000a:
+            break;
+
+            case 0x000b:
+            case 0x000c:
+            case 0x0085:
+#ifdef COMPILE_PCRE16
+            case 0x2028:
+            case 0x2029:
+#endif
+            if (md->bsr_anycrlf) RRETURN(MATCH_NOMATCH);
+            break;
+            }
+          }
+        break;
+
+        case OP_NOT_HSPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          switch(*eptr++)
+            {
+            default: break;
+            case 0x09:      /* HT */
+            case 0x20:      /* SPACE */
+            case 0xa0:      /* NBSP */
+#ifdef COMPILE_PCRE16
+            case 0x1680:    /* OGHAM SPACE MARK */
+            case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+            case 0x2000:    /* EN QUAD */
+            case 0x2001:    /* EM QUAD */
+            case 0x2002:    /* EN SPACE */
+            case 0x2003:    /* EM SPACE */
+            case 0x2004:    /* THREE-PER-EM SPACE */
+            case 0x2005:    /* FOUR-PER-EM SPACE */
+            case 0x2006:    /* SIX-PER-EM SPACE */
+            case 0x2007:    /* FIGURE SPACE */
+            case 0x2008:    /* PUNCTUATION SPACE */
+            case 0x2009:    /* THIN SPACE */
+            case 0x200A:    /* HAIR SPACE */
+            case 0x202f:    /* NARROW NO-BREAK SPACE */
+            case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+            case 0x3000:    /* IDEOGRAPHIC SPACE */
+#endif
+            RRETURN(MATCH_NOMATCH);
+            }
+          }
+        break;
+
+        case OP_HSPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          switch(*eptr++)
+            {
+            default: RRETURN(MATCH_NOMATCH);
+            case 0x09:      /* HT */
+            case 0x20:      /* SPACE */
+            case 0xa0:      /* NBSP */
+#ifdef COMPILE_PCRE16
+            case 0x1680:    /* OGHAM SPACE MARK */
+            case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+            case 0x2000:    /* EN QUAD */
+            case 0x2001:    /* EM QUAD */
+            case 0x2002:    /* EN SPACE */
+            case 0x2003:    /* EM SPACE */
+            case 0x2004:    /* THREE-PER-EM SPACE */
+            case 0x2005:    /* FOUR-PER-EM SPACE */
+            case 0x2006:    /* SIX-PER-EM SPACE */
+            case 0x2007:    /* FIGURE SPACE */
+            case 0x2008:    /* PUNCTUATION SPACE */
+            case 0x2009:    /* THIN SPACE */
+            case 0x200A:    /* HAIR SPACE */
+            case 0x202f:    /* NARROW NO-BREAK SPACE */
+            case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+            case 0x3000:    /* IDEOGRAPHIC SPACE */
+#endif
+            break;
+            }
+          }
+        break;
+
+        case OP_NOT_VSPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          switch(*eptr++)
+            {
+            default: break;
+            case 0x0a:      /* LF */
+            case 0x0b:      /* VT */
+            case 0x0c:      /* FF */
+            case 0x0d:      /* CR */
+            case 0x85:      /* NEL */
+#ifdef COMPILE_PCRE16
+            case 0x2028:    /* LINE SEPARATOR */
+            case 0x2029:    /* PARAGRAPH SEPARATOR */
+#endif
+            RRETURN(MATCH_NOMATCH);
+            }
+          }
+        break;
+
+        case OP_VSPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          switch(*eptr++)
+            {
+            default: RRETURN(MATCH_NOMATCH);
+            case 0x0a:      /* LF */
+            case 0x0b:      /* VT */
+            case 0x0c:      /* FF */
+            case 0x0d:      /* CR */
+            case 0x85:      /* NEL */
+#ifdef COMPILE_PCRE16
+            case 0x2028:    /* LINE SEPARATOR */
+            case 0x2029:    /* PARAGRAPH SEPARATOR */
+#endif
+            break;
+            }
+          }
+        break;
+
+        case OP_NOT_DIGIT:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (MAX_255(*eptr) && (md->ctypes[*eptr] & ctype_digit) != 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          }
+        break;
+
+        case OP_DIGIT:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (!MAX_255(*eptr) || (md->ctypes[*eptr] & ctype_digit) == 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          }
+        break;
+
+        case OP_NOT_WHITESPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (MAX_255(*eptr) && (md->ctypes[*eptr] & ctype_space) != 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          }
+        break;
+
+        case OP_WHITESPACE:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (!MAX_255(*eptr) || (md->ctypes[*eptr] & ctype_space) == 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          }
+        break;
+
+        case OP_NOT_WORDCHAR:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (MAX_255(*eptr) && (md->ctypes[*eptr] & ctype_word) != 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          }
+        break;
+
+        case OP_WORDCHAR:
+        for (i = 1; i <= min; i++)
+          {
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (!MAX_255(*eptr) || (md->ctypes[*eptr] & ctype_word) == 0)
+            RRETURN(MATCH_NOMATCH);
+          eptr++;
+          }
+        break;
+
+        default:
+        RRETURN(PCRE_ERROR_INTERNAL);
+        }
+      }
+
+    /* If min = max, continue at the same level without recursing */
+
+    if (min == max) continue;
+
+    /* If minimizing, we have to test the rest of the pattern before each
+    subsequent match. Again, separate the UTF-8 case for speed, and also
+    separate the UCP cases. */
+
+    if (minimize)
+      {
+#ifdef SUPPORT_UCP
+      if (prop_type >= 0)
+        {
+        switch(prop_type)
+          {
+          case PT_ANY:
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM36);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if (prop_fail_result) RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          case PT_LAMP:
+          for (fi = min;; fi++)
+            {
+            int chartype;
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM37);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            chartype = UCD_CHARTYPE(c);
+            if ((chartype == ucp_Lu ||
+                 chartype == ucp_Ll ||
+                 chartype == ucp_Lt) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          case PT_GC:
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM38);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_CATEGORY(c) == prop_value) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          case PT_PC:
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM39);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_CHARTYPE(c) == prop_value) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          case PT_SC:
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM40);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_SCRIPT(c) == prop_value) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          case PT_ALNUM:
+          for (fi = min;; fi++)
+            {
+            int category;
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM59);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            category = UCD_CATEGORY(c);
+            if ((category == ucp_L || category == ucp_N) == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          case PT_SPACE:    /* Perl space */
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM60);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_CATEGORY(c) == ucp_Z || c == CHAR_HT || c == CHAR_NL ||
+                 c == CHAR_FF || c == CHAR_CR)
+                   == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          case PT_PXSPACE:  /* POSIX space */
+          for (fi = min;; fi++)
+            {
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM61);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            if ((UCD_CATEGORY(c) == ucp_Z || c == CHAR_HT || c == CHAR_NL ||
+                 c == CHAR_VT || c == CHAR_FF || c == CHAR_CR)
+                   == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          case PT_WORD:
+          for (fi = min;; fi++)
+            {
+            int category;
+            RMATCH(eptr, ecode, offset_top, md, eptrb, RM62);
+            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+            if (fi >= max) RRETURN(MATCH_NOMATCH);
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              RRETURN(MATCH_NOMATCH);
+              }
+            GETCHARINCTEST(c, eptr);
+            category = UCD_CATEGORY(c);
+            if ((category == ucp_L ||
+                 category == ucp_N ||
+                 c == CHAR_UNDERSCORE)
+                   == prop_fail_result)
+              RRETURN(MATCH_NOMATCH);
+            }
+          /* Control never gets here */
+
+          /* This should never occur */
+
+          default:
+          RRETURN(PCRE_ERROR_INTERNAL);
+          }
+        }
+
+      /* Match extended Unicode sequences. We will get here only if the
+      support is in the binary; otherwise a compile-time error occurs. */
+
+      else if (ctype == OP_EXTUNI)
+        {
+        for (fi = min;; fi++)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM41);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (fi >= max) RRETURN(MATCH_NOMATCH);
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          GETCHARINCTEST(c, eptr);
+          if (UCD_CATEGORY(c) == ucp_M) RRETURN(MATCH_NOMATCH);
+          while (eptr < md->end_subject)
+            {
+            int len = 1;
+            if (!utf) c = *eptr; else { GETCHARLEN(c, eptr, len); }
+            if (UCD_CATEGORY(c) != ucp_M) break;
+            eptr += len;
+            }
+          CHECK_PARTIAL();
+          }
+        }
+      else
+#endif     /* SUPPORT_UCP */
+
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+        for (fi = min;; fi++)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM42);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (fi >= max) RRETURN(MATCH_NOMATCH);
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (ctype == OP_ANY && IS_NEWLINE(eptr))
+            RRETURN(MATCH_NOMATCH);
+          GETCHARINC(c, eptr);
+          switch(ctype)
+            {
+            case OP_ANY:               /* This is the non-NL case */
+            if (md->partial != 0 &&    /* Take care with CRLF partial */
+                eptr >= md->end_subject &&
+                NLBLOCK->nltype == NLTYPE_FIXED &&
+                NLBLOCK->nllen == 2 &&
+                c == NLBLOCK->nl[0])
+              {
+              md->hitend = TRUE;
+              if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+              }
+            break;
+
+            case OP_ALLANY:
+            case OP_ANYBYTE:
+            break;
+
+            case OP_ANYNL:
+            switch(c)
+              {
+              default: RRETURN(MATCH_NOMATCH);
+              case 0x000d:
+              if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
+              break;
+              case 0x000a:
+              break;
+
+              case 0x000b:
+              case 0x000c:
+              case 0x0085:
+              case 0x2028:
+              case 0x2029:
+              if (md->bsr_anycrlf) RRETURN(MATCH_NOMATCH);
+              break;
+              }
+            break;
+
+            case OP_NOT_HSPACE:
+            switch(c)
+              {
+              default: break;
+              case 0x09:      /* HT */
+              case 0x20:      /* SPACE */
+              case 0xa0:      /* NBSP */
+              case 0x1680:    /* OGHAM SPACE MARK */
+              case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+              case 0x2000:    /* EN QUAD */
+              case 0x2001:    /* EM QUAD */
+              case 0x2002:    /* EN SPACE */
+              case 0x2003:    /* EM SPACE */
+              case 0x2004:    /* THREE-PER-EM SPACE */
+              case 0x2005:    /* FOUR-PER-EM SPACE */
+              case 0x2006:    /* SIX-PER-EM SPACE */
+              case 0x2007:    /* FIGURE SPACE */
+              case 0x2008:    /* PUNCTUATION SPACE */
+              case 0x2009:    /* THIN SPACE */
+              case 0x200A:    /* HAIR SPACE */
+              case 0x202f:    /* NARROW NO-BREAK SPACE */
+              case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+              case 0x3000:    /* IDEOGRAPHIC SPACE */
+              RRETURN(MATCH_NOMATCH);
+              }
+            break;
+
+            case OP_HSPACE:
+            switch(c)
+              {
+              default: RRETURN(MATCH_NOMATCH);
+              case 0x09:      /* HT */
+              case 0x20:      /* SPACE */
+              case 0xa0:      /* NBSP */
+              case 0x1680:    /* OGHAM SPACE MARK */
+              case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+              case 0x2000:    /* EN QUAD */
+              case 0x2001:    /* EM QUAD */
+              case 0x2002:    /* EN SPACE */
+              case 0x2003:    /* EM SPACE */
+              case 0x2004:    /* THREE-PER-EM SPACE */
+              case 0x2005:    /* FOUR-PER-EM SPACE */
+              case 0x2006:    /* SIX-PER-EM SPACE */
+              case 0x2007:    /* FIGURE SPACE */
+              case 0x2008:    /* PUNCTUATION SPACE */
+              case 0x2009:    /* THIN SPACE */
+              case 0x200A:    /* HAIR SPACE */
+              case 0x202f:    /* NARROW NO-BREAK SPACE */
+              case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+              case 0x3000:    /* IDEOGRAPHIC SPACE */
+              break;
+              }
+            break;
+
+            case OP_NOT_VSPACE:
+            switch(c)
+              {
+              default: break;
+              case 0x0a:      /* LF */
+              case 0x0b:      /* VT */
+              case 0x0c:      /* FF */
+              case 0x0d:      /* CR */
+              case 0x85:      /* NEL */
+              case 0x2028:    /* LINE SEPARATOR */
+              case 0x2029:    /* PARAGRAPH SEPARATOR */
+              RRETURN(MATCH_NOMATCH);
+              }
+            break;
+
+            case OP_VSPACE:
+            switch(c)
+              {
+              default: RRETURN(MATCH_NOMATCH);
+              case 0x0a:      /* LF */
+              case 0x0b:      /* VT */
+              case 0x0c:      /* FF */
+              case 0x0d:      /* CR */
+              case 0x85:      /* NEL */
+              case 0x2028:    /* LINE SEPARATOR */
+              case 0x2029:    /* PARAGRAPH SEPARATOR */
+              break;
+              }
+            break;
+
+            case OP_NOT_DIGIT:
+            if (c < 256 && (md->ctypes[c] & ctype_digit) != 0)
+              RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_DIGIT:
+            if (c >= 256 || (md->ctypes[c] & ctype_digit) == 0)
+              RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_NOT_WHITESPACE:
+            if (c < 256 && (md->ctypes[c] & ctype_space) != 0)
+              RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_WHITESPACE:
+            if (c >= 256 || (md->ctypes[c] & ctype_space) == 0)
+              RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_NOT_WORDCHAR:
+            if (c < 256 && (md->ctypes[c] & ctype_word) != 0)
+              RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_WORDCHAR:
+            if (c >= 256 || (md->ctypes[c] & ctype_word) == 0)
+              RRETURN(MATCH_NOMATCH);
+            break;
+
+            default:
+            RRETURN(PCRE_ERROR_INTERNAL);
+            }
+          }
+        }
+      else
+#endif
+      /* Not UTF mode */
+        {
+        for (fi = min;; fi++)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM43);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (fi >= max) RRETURN(MATCH_NOMATCH);
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            RRETURN(MATCH_NOMATCH);
+            }
+          if (ctype == OP_ANY && IS_NEWLINE(eptr))
+            RRETURN(MATCH_NOMATCH);
+          c = *eptr++;
+          switch(ctype)
+            {
+            case OP_ANY:               /* This is the non-NL case */
+            if (md->partial != 0 &&    /* Take care with CRLF partial */
+                eptr >= md->end_subject &&
+                NLBLOCK->nltype == NLTYPE_FIXED &&
+                NLBLOCK->nllen == 2 &&
+                c == NLBLOCK->nl[0])
+              {
+              md->hitend = TRUE;
+              if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+              }
+            break;
+
+            case OP_ALLANY:
+            case OP_ANYBYTE:
+            break;
+
+            case OP_ANYNL:
+            switch(c)
+              {
+              default: RRETURN(MATCH_NOMATCH);
+              case 0x000d:
+              if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
+              break;
+
+              case 0x000a:
+              break;
+
+              case 0x000b:
+              case 0x000c:
+              case 0x0085:
+#ifdef COMPILE_PCRE16
+              case 0x2028:
+              case 0x2029:
+#endif
+              if (md->bsr_anycrlf) RRETURN(MATCH_NOMATCH);
+              break;
+              }
+            break;
+
+            case OP_NOT_HSPACE:
+            switch(c)
+              {
+              default: break;
+              case 0x09:      /* HT */
+              case 0x20:      /* SPACE */
+              case 0xa0:      /* NBSP */
+#ifdef COMPILE_PCRE16
+              case 0x1680:    /* OGHAM SPACE MARK */
+              case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+              case 0x2000:    /* EN QUAD */
+              case 0x2001:    /* EM QUAD */
+              case 0x2002:    /* EN SPACE */
+              case 0x2003:    /* EM SPACE */
+              case 0x2004:    /* THREE-PER-EM SPACE */
+              case 0x2005:    /* FOUR-PER-EM SPACE */
+              case 0x2006:    /* SIX-PER-EM SPACE */
+              case 0x2007:    /* FIGURE SPACE */
+              case 0x2008:    /* PUNCTUATION SPACE */
+              case 0x2009:    /* THIN SPACE */
+              case 0x200A:    /* HAIR SPACE */
+              case 0x202f:    /* NARROW NO-BREAK SPACE */
+              case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+              case 0x3000:    /* IDEOGRAPHIC SPACE */
+#endif
+              RRETURN(MATCH_NOMATCH);
+              }
+            break;
+
+            case OP_HSPACE:
+            switch(c)
+              {
+              default: RRETURN(MATCH_NOMATCH);
+              case 0x09:      /* HT */
+              case 0x20:      /* SPACE */
+              case 0xa0:      /* NBSP */
+#ifdef COMPILE_PCRE16
+              case 0x1680:    /* OGHAM SPACE MARK */
+              case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+              case 0x2000:    /* EN QUAD */
+              case 0x2001:    /* EM QUAD */
+              case 0x2002:    /* EN SPACE */
+              case 0x2003:    /* EM SPACE */
+              case 0x2004:    /* THREE-PER-EM SPACE */
+              case 0x2005:    /* FOUR-PER-EM SPACE */
+              case 0x2006:    /* SIX-PER-EM SPACE */
+              case 0x2007:    /* FIGURE SPACE */
+              case 0x2008:    /* PUNCTUATION SPACE */
+              case 0x2009:    /* THIN SPACE */
+              case 0x200A:    /* HAIR SPACE */
+              case 0x202f:    /* NARROW NO-BREAK SPACE */
+              case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+              case 0x3000:    /* IDEOGRAPHIC SPACE */
+#endif
+              break;
+              }
+            break;
+
+            case OP_NOT_VSPACE:
+            switch(c)
+              {
+              default: break;
+              case 0x0a:      /* LF */
+              case 0x0b:      /* VT */
+              case 0x0c:      /* FF */
+              case 0x0d:      /* CR */
+              case 0x85:      /* NEL */
+#ifdef COMPILE_PCRE16
+              case 0x2028:    /* LINE SEPARATOR */
+              case 0x2029:    /* PARAGRAPH SEPARATOR */
+#endif
+              RRETURN(MATCH_NOMATCH);
+              }
+            break;
+
+            case OP_VSPACE:
+            switch(c)
+              {
+              default: RRETURN(MATCH_NOMATCH);
+              case 0x0a:      /* LF */
+              case 0x0b:      /* VT */
+              case 0x0c:      /* FF */
+              case 0x0d:      /* CR */
+              case 0x85:      /* NEL */
+#ifdef COMPILE_PCRE16
+              case 0x2028:    /* LINE SEPARATOR */
+              case 0x2029:    /* PARAGRAPH SEPARATOR */
+#endif
+              break;
+              }
+            break;
+
+            case OP_NOT_DIGIT:
+            if (MAX_255(c) && (md->ctypes[c] & ctype_digit) != 0) RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_DIGIT:
+            if (!MAX_255(c) || (md->ctypes[c] & ctype_digit) == 0) RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_NOT_WHITESPACE:
+            if (MAX_255(c) && (md->ctypes[c] & ctype_space) != 0) RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_WHITESPACE:
+            if (!MAX_255(c) || (md->ctypes[c] & ctype_space) == 0) RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_NOT_WORDCHAR:
+            if (MAX_255(c) && (md->ctypes[c] & ctype_word) != 0) RRETURN(MATCH_NOMATCH);
+            break;
+
+            case OP_WORDCHAR:
+            if (!MAX_255(c) || (md->ctypes[c] & ctype_word) == 0) RRETURN(MATCH_NOMATCH);
+            break;
+
+            default:
+            RRETURN(PCRE_ERROR_INTERNAL);
+            }
+          }
+        }
+      /* Control never gets here */
+      }
+
+    /* If maximizing, it is worth using inline code for speed, doing the type
+    test once at the start (i.e. keep it out of the loop). Again, keep the
+    UTF-8 and UCP stuff separate. */
+
+    else
+      {
+      pp = eptr;  /* Remember where we started */
+
+#ifdef SUPPORT_UCP
+      if (prop_type >= 0)
+        {
+        switch(prop_type)
+          {
+          case PT_ANY:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            if (prop_fail_result) break;
+            eptr+= len;
+            }
+          break;
+
+          case PT_LAMP:
+          for (i = min; i < max; i++)
+            {
+            int chartype;
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            chartype = UCD_CHARTYPE(c);
+            if ((chartype == ucp_Lu ||
+                 chartype == ucp_Ll ||
+                 chartype == ucp_Lt) == prop_fail_result)
+              break;
+            eptr+= len;
+            }
+          break;
+
+          case PT_GC:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            if ((UCD_CATEGORY(c) == prop_value) == prop_fail_result) break;
+            eptr+= len;
+            }
+          break;
+
+          case PT_PC:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            if ((UCD_CHARTYPE(c) == prop_value) == prop_fail_result) break;
+            eptr+= len;
+            }
+          break;
+
+          case PT_SC:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            if ((UCD_SCRIPT(c) == prop_value) == prop_fail_result) break;
+            eptr+= len;
+            }
+          break;
+
+          case PT_ALNUM:
+          for (i = min; i < max; i++)
+            {
+            int category;
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            category = UCD_CATEGORY(c);
+            if ((category == ucp_L || category == ucp_N) == prop_fail_result)
+              break;
+            eptr+= len;
+            }
+          break;
+
+          case PT_SPACE:    /* Perl space */
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            if ((UCD_CATEGORY(c) == ucp_Z || c == CHAR_HT || c == CHAR_NL ||
+                 c == CHAR_FF || c == CHAR_CR)
+                 == prop_fail_result)
+              break;
+            eptr+= len;
+            }
+          break;
+
+          case PT_PXSPACE:  /* POSIX space */
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            if ((UCD_CATEGORY(c) == ucp_Z || c == CHAR_HT || c == CHAR_NL ||
+                 c == CHAR_VT || c == CHAR_FF || c == CHAR_CR)
+                 == prop_fail_result)
+              break;
+            eptr+= len;
+            }
+          break;
+
+          case PT_WORD:
+          for (i = min; i < max; i++)
+            {
+            int category;
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLENTEST(c, eptr, len);
+            category = UCD_CATEGORY(c);
+            if ((category == ucp_L || category == ucp_N ||
+                 c == CHAR_UNDERSCORE) == prop_fail_result)
+              break;
+            eptr+= len;
+            }
+          break;
+
+          default:
+          RRETURN(PCRE_ERROR_INTERNAL);
+          }
+
+        /* eptr is now past the end of the maximum run */
+
+        if (possessive) continue;
+        for(;;)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM44);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (eptr-- == pp) break;        /* Stop if tried at original pos */
+          if (utf) BACKCHAR(eptr);
+          }
+        }
+
+      /* Match extended Unicode sequences. We will get here only if the
+      support is in the binary; otherwise a compile-time error occurs. */
+
+      else if (ctype == OP_EXTUNI)
+        {
+        for (i = min; i < max; i++)
+          {
+          int len = 1;
+          if (eptr >= md->end_subject)
+            {
+            SCHECK_PARTIAL();
+            break;
+            }
+          if (!utf) c = *eptr; else { GETCHARLEN(c, eptr, len); }
+          if (UCD_CATEGORY(c) == ucp_M) break;
+          eptr += len;
+          while (eptr < md->end_subject)
+            {
+            len = 1;
+            if (!utf) c = *eptr; else { GETCHARLEN(c, eptr, len); }
+            if (UCD_CATEGORY(c) != ucp_M) break;
+            eptr += len;
+            }
+          CHECK_PARTIAL();
+          }
+
+        /* eptr is now past the end of the maximum run */
+
+        if (possessive) continue;
+
+        for(;;)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM45);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (eptr-- == pp) break;        /* Stop if tried at original pos */
+          for (;;)                        /* Move back over one extended */
+            {
+            if (!utf) c = *eptr; else
+              {
+              BACKCHAR(eptr);
+              GETCHAR(c, eptr);
+              }
+            if (UCD_CATEGORY(c) != ucp_M) break;
+            eptr--;
+            }
+          }
+        }
+
+      else
+#endif   /* SUPPORT_UCP */
+
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+        switch(ctype)
+          {
+          case OP_ANY:
+          if (max < INT_MAX)
+            {
+            for (i = min; i < max; i++)
+              {
+              if (eptr >= md->end_subject)
+                {
+                SCHECK_PARTIAL();
+                break;
+                }
+              if (IS_NEWLINE(eptr)) break;
+              if (md->partial != 0 &&    /* Take care with CRLF partial */
+                  eptr + 1 >= md->end_subject &&
+                  NLBLOCK->nltype == NLTYPE_FIXED &&
+                  NLBLOCK->nllen == 2 &&
+                  *eptr == NLBLOCK->nl[0])
+                {
+                md->hitend = TRUE;
+                if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+                }
+              eptr++;
+              ACROSSCHAR(eptr < md->end_subject, *eptr, eptr++);
+              }
+            }
+
+          /* Handle unlimited UTF-8 repeat */
+
+          else
+            {
+            for (i = min; i < max; i++)
+              {
+              if (eptr >= md->end_subject)
+                {
+                SCHECK_PARTIAL();
+                break;
+                }
+              if (IS_NEWLINE(eptr)) break;
+              if (md->partial != 0 &&    /* Take care with CRLF partial */
+                  eptr + 1 >= md->end_subject &&
+                  NLBLOCK->nltype == NLTYPE_FIXED &&
+                  NLBLOCK->nllen == 2 &&
+                  *eptr == NLBLOCK->nl[0])
+                {
+                md->hitend = TRUE;
+                if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+                }
+              eptr++;
+              ACROSSCHAR(eptr < md->end_subject, *eptr, eptr++);
+              }
+            }
+          break;
+
+          case OP_ALLANY:
+          if (max < INT_MAX)
+            {
+            for (i = min; i < max; i++)
+              {
+              if (eptr >= md->end_subject)
+                {
+                SCHECK_PARTIAL();
+                break;
+                }
+              eptr++;
+              ACROSSCHAR(eptr < md->end_subject, *eptr, eptr++);
+              }
+            }
+          else
+            {
+            eptr = md->end_subject;   /* Unlimited UTF-8 repeat */
+            SCHECK_PARTIAL();
+            }
+          break;
+
+          /* The byte case is the same as non-UTF8 */
+
+          case OP_ANYBYTE:
+          c = max - min;
+          if (c > (unsigned int)(md->end_subject - eptr))
+            {
+            eptr = md->end_subject;
+            SCHECK_PARTIAL();
+            }
+          else eptr += c;
+          break;
+
+          case OP_ANYNL:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            if (c == 0x000d)
+              {
+              if (++eptr >= md->end_subject) break;
+              if (*eptr == 0x000a) eptr++;
+              }
+            else
+              {
+              if (c != 0x000a &&
+                  (md->bsr_anycrlf ||
+                   (c != 0x000b && c != 0x000c &&
+                    c != 0x0085 && c != 0x2028 && c != 0x2029)))
+                break;
+              eptr += len;
+              }
+            }
+          break;
+
+          case OP_NOT_HSPACE:
+          case OP_HSPACE:
+          for (i = min; i < max; i++)
+            {
+            BOOL gotspace;
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            switch(c)
+              {
+              default: gotspace = FALSE; break;
+              case 0x09:      /* HT */
+              case 0x20:      /* SPACE */
+              case 0xa0:      /* NBSP */
+              case 0x1680:    /* OGHAM SPACE MARK */
+              case 0x180e:    /* MONGOLIAN VOWEL SEPARATOR */
+              case 0x2000:    /* EN QUAD */
+              case 0x2001:    /* EM QUAD */
+              case 0x2002:    /* EN SPACE */
+              case 0x2003:    /* EM SPACE */
+              case 0x2004:    /* THREE-PER-EM SPACE */
+              case 0x2005:    /* FOUR-PER-EM SPACE */
+              case 0x2006:    /* SIX-PER-EM SPACE */
+              case 0x2007:    /* FIGURE SPACE */
+              case 0x2008:    /* PUNCTUATION SPACE */
+              case 0x2009:    /* THIN SPACE */
+              case 0x200A:    /* HAIR SPACE */
+              case 0x202f:    /* NARROW NO-BREAK SPACE */
+              case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
+              case 0x3000:    /* IDEOGRAPHIC SPACE */
+              gotspace = TRUE;
+              break;
+              }
+            if (gotspace == (ctype == OP_NOT_HSPACE)) break;
+            eptr += len;
+            }
+          break;
+
+          case OP_NOT_VSPACE:
+          case OP_VSPACE:
+          for (i = min; i < max; i++)
+            {
+            BOOL gotspace;
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            switch(c)
+              {
+              default: gotspace = FALSE; break;
+              case 0x0a:      /* LF */
+              case 0x0b:      /* VT */
+              case 0x0c:      /* FF */
+              case 0x0d:      /* CR */
+              case 0x85:      /* NEL */
+              case 0x2028:    /* LINE SEPARATOR */
+              case 0x2029:    /* PARAGRAPH SEPARATOR */
+              gotspace = TRUE;
+              break;
+              }
+            if (gotspace == (ctype == OP_NOT_VSPACE)) break;
+            eptr += len;
+            }
+          break;
+
+          case OP_NOT_DIGIT:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            if (c < 256 && (md->ctypes[c] & ctype_digit) != 0) break;
+            eptr+= len;
+            }
+          break;
+
+          case OP_DIGIT:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            if (c >= 256 ||(md->ctypes[c] & ctype_digit) == 0) break;
+            eptr+= len;
+            }
+          break;
+
+          case OP_NOT_WHITESPACE:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            if (c < 256 && (md->ctypes[c] & ctype_space) != 0) break;
+            eptr+= len;
+            }
+          break;
+
+          case OP_WHITESPACE:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            if (c >= 256 ||(md->ctypes[c] & ctype_space) == 0) break;
+            eptr+= len;
+            }
+          break;
+
+          case OP_NOT_WORDCHAR:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            if (c < 256 && (md->ctypes[c] & ctype_word) != 0) break;
+            eptr+= len;
+            }
+          break;
+
+          case OP_WORDCHAR:
+          for (i = min; i < max; i++)
+            {
+            int len = 1;
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            GETCHARLEN(c, eptr, len);
+            if (c >= 256 || (md->ctypes[c] & ctype_word) == 0) break;
+            eptr+= len;
+            }
+          break;
+
+          default:
+          RRETURN(PCRE_ERROR_INTERNAL);
+          }
+
+        /* eptr is now past the end of the maximum run. If possessive, we are
+        done (no backing up). Otherwise, match at this position; anything other
+        than no match is immediately returned. For nomatch, back up one
+        character, unless we are matching \R and the last thing matched was
+        \r\n, in which case, back up two bytes. */
+
+        if (possessive) continue;
+        for(;;)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM46);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          if (eptr-- == pp) break;        /* Stop if tried at original pos */
+          BACKCHAR(eptr);
+          if (ctype == OP_ANYNL && eptr > pp  && *eptr == '\n' &&
+              eptr[-1] == '\r') eptr--;
+          }
+        }
+      else
+#endif  /* SUPPORT_UTF */
+      /* Not UTF mode */
+        {
+        switch(ctype)
+          {
+          case OP_ANY:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (IS_NEWLINE(eptr)) break;
+            if (md->partial != 0 &&    /* Take care with CRLF partial */
+                eptr + 1 >= md->end_subject &&
+                NLBLOCK->nltype == NLTYPE_FIXED &&
+                NLBLOCK->nllen == 2 &&
+                *eptr == NLBLOCK->nl[0])
+              {
+              md->hitend = TRUE;
+              if (md->partial > 1) RRETURN(PCRE_ERROR_PARTIAL);
+              }
+            eptr++;
+            }
+          break;
+
+          case OP_ALLANY:
+          case OP_ANYBYTE:
+          c = max - min;
+          if (c > (unsigned int)(md->end_subject - eptr))
+            {
+            eptr = md->end_subject;
+            SCHECK_PARTIAL();
+            }
+          else eptr += c;
+          break;
+
+          case OP_ANYNL:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            c = *eptr;
+            if (c == 0x000d)
+              {
+              if (++eptr >= md->end_subject) break;
+              if (*eptr == 0x000a) eptr++;
+              }
+            else
+              {
+              if (c != 0x000a && (md->bsr_anycrlf ||
+                (c != 0x000b && c != 0x000c && c != 0x0085
+#ifdef COMPILE_PCRE16
+                && c != 0x2028 && c != 0x2029
+#endif
+                ))) break;
+              eptr++;
+              }
+            }
+          break;
+
+          case OP_NOT_HSPACE:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            c = *eptr;
+            if (c == 0x09 || c == 0x20 || c == 0xa0
+#ifdef COMPILE_PCRE16
+              || c == 0x1680 || c == 0x180e || (c >= 0x2000 && c <= 0x200A)
+              || c == 0x202f || c == 0x205f || c == 0x3000
+#endif
+              ) break;
+            eptr++;
+            }
+          break;
+
+          case OP_HSPACE:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            c = *eptr;
+            if (c != 0x09 && c != 0x20 && c != 0xa0
+#ifdef COMPILE_PCRE16
+              && c != 0x1680 && c != 0x180e && (c < 0x2000 || c > 0x200A)
+              && c != 0x202f && c != 0x205f && c != 0x3000
+#endif
+              ) break;
+            eptr++;
+            }
+          break;
+
+          case OP_NOT_VSPACE:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            c = *eptr;
+            if (c == 0x0a || c == 0x0b || c == 0x0c || c == 0x0d || c == 0x85
+#ifdef COMPILE_PCRE16
+              || c == 0x2028 || c == 0x2029
+#endif
+              ) break;
+            eptr++;
+            }
+          break;
+
+          case OP_VSPACE:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            c = *eptr;
+            if (c != 0x0a && c != 0x0b && c != 0x0c && c != 0x0d && c != 0x85
+#ifdef COMPILE_PCRE16
+              && c != 0x2028 && c != 0x2029
+#endif
+              ) break;
+            eptr++;
+            }
+          break;
+
+          case OP_NOT_DIGIT:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (MAX_255(*eptr) && (md->ctypes[*eptr] & ctype_digit) != 0) break;
+            eptr++;
+            }
+          break;
+
+          case OP_DIGIT:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (!MAX_255(*eptr) || (md->ctypes[*eptr] & ctype_digit) == 0) break;
+            eptr++;
+            }
+          break;
+
+          case OP_NOT_WHITESPACE:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (MAX_255(*eptr) && (md->ctypes[*eptr] & ctype_space) != 0) break;
+            eptr++;
+            }
+          break;
+
+          case OP_WHITESPACE:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (!MAX_255(*eptr) || (md->ctypes[*eptr] & ctype_space) == 0) break;
+            eptr++;
+            }
+          break;
+
+          case OP_NOT_WORDCHAR:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (MAX_255(*eptr) && (md->ctypes[*eptr] & ctype_word) != 0) break;
+            eptr++;
+            }
+          break;
+
+          case OP_WORDCHAR:
+          for (i = min; i < max; i++)
+            {
+            if (eptr >= md->end_subject)
+              {
+              SCHECK_PARTIAL();
+              break;
+              }
+            if (!MAX_255(*eptr) || (md->ctypes[*eptr] & ctype_word) == 0) break;
+            eptr++;
+            }
+          break;
+
+          default:
+          RRETURN(PCRE_ERROR_INTERNAL);
+          }
+
+        /* eptr is now past the end of the maximum run. If possessive, we are
+        done (no backing up). Otherwise, match at this position; anything other
+        than no match is immediately returned. For nomatch, back up one
+        character (byte), unless we are matching \R and the last thing matched
+        was \r\n, in which case, back up two bytes. */
+
+        if (possessive) continue;
+        while (eptr >= pp)
+          {
+          RMATCH(eptr, ecode, offset_top, md, eptrb, RM47);
+          if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+          eptr--;
+          if (ctype == OP_ANYNL && eptr > pp  && *eptr == '\n' &&
+              eptr[-1] == '\r') eptr--;
+          }
+        }
+
+      /* Get here if we can't make it match with any permitted repetitions */
+
+      RRETURN(MATCH_NOMATCH);
+      }
+    /* Control never gets here */
+
+    /* There's been some horrible disaster. Arrival here can only mean there is
+    something seriously wrong in the code above or the OP_xxx definitions. */
+
+    default:
+    DPRINTF(("Unknown opcode %d\n", *ecode));
+    RRETURN(PCRE_ERROR_UNKNOWN_OPCODE);
+    }
+
+  /* Do not stick any code in here without much thought; it is assumed
+  that "continue" in the code above comes out to here to repeat the main
+  loop. */
+
+  }             /* End of main loop */
+/* Control never reaches here */
+
+
+/* When compiling to use the heap rather than the stack for recursive calls to
+match(), the RRETURN() macro jumps here. The number that is saved in
+frame->Xwhere indicates which label we actually want to return to. */
+
+#ifdef NO_RECURSE
+#define LBL(val) case val: goto L_RM##val;
+HEAP_RETURN:
+switch (frame->Xwhere)
+  {
+  LBL( 1) LBL( 2) LBL( 3) LBL( 4) LBL( 5) LBL( 6) LBL( 7) LBL( 8)
+  LBL( 9) LBL(10) LBL(11) LBL(12) LBL(13) LBL(14) LBL(15) LBL(17)
+  LBL(19) LBL(24) LBL(25) LBL(26) LBL(27) LBL(29) LBL(31) LBL(33)
+  LBL(35) LBL(43) LBL(47) LBL(48) LBL(49) LBL(50) LBL(51) LBL(52)
+  LBL(53) LBL(54) LBL(55) LBL(56) LBL(57) LBL(58) LBL(63) LBL(64)
+  LBL(65) LBL(66)
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+  LBL(21)
+#endif
+#ifdef SUPPORT_UTF
+  LBL(16) LBL(18) LBL(20)
+  LBL(22) LBL(23) LBL(28) LBL(30)
+  LBL(32) LBL(34) LBL(42) LBL(46)
+#ifdef SUPPORT_UCP
+  LBL(36) LBL(37) LBL(38) LBL(39) LBL(40) LBL(41) LBL(44) LBL(45)
+  LBL(59) LBL(60) LBL(61) LBL(62)
+#endif  /* SUPPORT_UCP */
+#endif  /* SUPPORT_UTF */
+  default:
+  DPRINTF(("jump error in pcre match: label %d non-existent\n", frame->Xwhere));
+
+printf("+++jump error in pcre match: label %d non-existent\n", frame->Xwhere);
+
+  return PCRE_ERROR_INTERNAL;
+  }
+#undef LBL
+#endif  /* NO_RECURSE */
+}
+
+
+/***************************************************************************
+****************************************************************************
+                   RECURSION IN THE match() FUNCTION
+
+Undefine all the macros that were defined above to handle this. */
+
+#ifdef NO_RECURSE
+#undef eptr
+#undef ecode
+#undef mstart
+#undef offset_top
+#undef eptrb
+#undef flags
+
+#undef callpat
+#undef charptr
+#undef data
+#undef next
+#undef pp
+#undef prev
+#undef saved_eptr
+
+#undef new_recursive
+
+#undef cur_is_word
+#undef condition
+#undef prev_is_word
+
+#undef ctype
+#undef length
+#undef max
+#undef min
+#undef number
+#undef offset
+#undef op
+#undef save_capture_last
+#undef save_offset1
+#undef save_offset2
+#undef save_offset3
+#undef stacksave
+
+#undef newptrb
+
+#endif
+
+/* These two are defined as macros in both cases */
+
+#undef fc
+#undef fi
+
+/***************************************************************************
+***************************************************************************/
+
+
+#ifdef NO_RECURSE
+/*************************************************
+*          Release allocated heap frames         *
+*************************************************/
+
+/* This function releases all the allocated frames. The base frame is on the
+machine stack, and so must not be freed.
+
+Argument: the address of the base frame
+Returns:  nothing
+*/
+
+static void
+release_match_heapframes (heapframe *frame_base)
+{
+heapframe *nextframe = frame_base->Xnextframe;
+while (nextframe != NULL)
+  {
+  heapframe *oldframe = nextframe;
+  nextframe = nextframe->Xnextframe;
+  (PUBL(stack_free))(oldframe);
+  }
+}
+#endif
+
+
+/*************************************************
+*         Execute a Regular Expression           *
+*************************************************/
+
+/* This function applies a compiled re to a subject string and picks out
+portions of the string if it matches. Two elements in the vector are set for
+each substring: the offsets to the start and end of the substring.
+
+Arguments:
+  argument_re     points to the compiled expression
+  extra_data      points to extra data or is NULL
+  subject         points to the subject string
+  length          length of subject string (may contain binary zeros)
+  start_offset    where to start in the subject string
+  options         option bits
+  offsets         points to a vector of ints to be filled in with offsets
+  offsetcount     the number of elements in the vector
+
+Returns:          > 0 => success; value is the number of elements filled in
+                  = 0 => success, but offsets is not big enough
+                   -1 => failed to match
+                 < -1 => some kind of unexpected problem
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_exec(const pcre *argument_re, const pcre_extra *extra_data,
+  PCRE_SPTR subject, int length, int start_offset, int options, int *offsets,
+  int offsetcount)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_exec(const pcre16 *argument_re, const pcre16_extra *extra_data,
+  PCRE_SPTR16 subject, int length, int start_offset, int options, int *offsets,
+  int offsetcount)
+#endif
+{
+int rc, ocount, arg_offset_max;
+int newline;
+BOOL using_temporary_offsets = FALSE;
+BOOL anchored;
+BOOL startline;
+BOOL firstline;
+BOOL utf;
+BOOL has_first_char = FALSE;
+BOOL has_req_char = FALSE;
+pcre_uchar first_char = 0;
+pcre_uchar first_char2 = 0;
+pcre_uchar req_char = 0;
+pcre_uchar req_char2 = 0;
+match_data match_block;
+match_data *md = &match_block;
+const pcre_uint8 *tables;
+const pcre_uint8 *start_bits = NULL;
+PCRE_PUCHAR start_match = (PCRE_PUCHAR)subject + start_offset;
+PCRE_PUCHAR end_subject;
+PCRE_PUCHAR start_partial = NULL;
+PCRE_PUCHAR req_char_ptr = start_match - 1;
+
+const pcre_study_data *study;
+const REAL_PCRE *re = (const REAL_PCRE *)argument_re;
+
+#ifdef NO_RECURSE
+heapframe frame_zero;
+frame_zero.Xprevframe = NULL;            /* Marks the top level */
+frame_zero.Xnextframe = NULL;            /* None are allocated yet */
+md->match_frames_base = &frame_zero;
+#endif
+
+/* Check for the special magic call that measures the size of the stack used
+per recursive call of match(). Without the funny casting for sizeof, a Windows
+compiler gave this error: "unary minus operator applied to unsigned type,
+result still unsigned". Hopefully the cast fixes that. */
+
+if (re == NULL && extra_data == NULL && subject == NULL && length == -999 &&
+    start_offset == -999)
+#ifdef NO_RECURSE
+  return -((int)sizeof(heapframe));
+#else
+  return match(NULL, NULL, NULL, 0, NULL, NULL, 0);
+#endif
+
+/* Plausibility checks */
+
+if ((options & ~PUBLIC_EXEC_OPTIONS) != 0) return PCRE_ERROR_BADOPTION;
+if (re == NULL || subject == NULL || (offsets == NULL && offsetcount > 0))
+  return PCRE_ERROR_NULL;
+if (offsetcount < 0) return PCRE_ERROR_BADCOUNT;
+if (start_offset < 0 || start_offset > length) return PCRE_ERROR_BADOFFSET;
+
+/* Check that the first field in the block is the magic number. If it is not,
+return with PCRE_ERROR_BADMAGIC. However, if the magic number is equal to
+REVERSED_MAGIC_NUMBER we return with PCRE_ERROR_BADENDIANNESS, which
+means that the pattern is likely compiled with different endianness. */
+
+if (re->magic_number != MAGIC_NUMBER)
+  return re->magic_number == REVERSED_MAGIC_NUMBER?
+    PCRE_ERROR_BADENDIANNESS:PCRE_ERROR_BADMAGIC;
+if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
+
+/* These two settings are used in the code for checking a UTF-8 string that
+follows immediately afterwards. Other values in the md block are used only
+during "normal" pcre_exec() processing, not when the JIT support is in use,
+so they are set up later. */
+
+/* PCRE_UTF16 has the same value as PCRE_UTF8. */
+utf = md->utf = (re->options & PCRE_UTF8) != 0;
+md->partial = ((options & PCRE_PARTIAL_HARD) != 0)? 2 :
+              ((options & PCRE_PARTIAL_SOFT) != 0)? 1 : 0;
+
+/* Check a UTF-8 string if required. Pass back the character offset and error
+code for an invalid string if a results vector is available. */
+
+#ifdef SUPPORT_UTF
+if (utf && (options & PCRE_NO_UTF8_CHECK) == 0)
+  {
+  int erroroffset;
+  int errorcode = PRIV(valid_utf)((PCRE_PUCHAR)subject, length, &erroroffset);
+  if (errorcode != 0)
+    {
+    if (offsetcount >= 2)
+      {
+      offsets[0] = erroroffset;
+      offsets[1] = errorcode;
+      }
+#ifdef COMPILE_PCRE16
+    return (errorcode <= PCRE_UTF16_ERR1 && md->partial > 1)?
+      PCRE_ERROR_SHORTUTF16 : PCRE_ERROR_BADUTF16;
+#else
+    return (errorcode <= PCRE_UTF8_ERR5 && md->partial > 1)?
+      PCRE_ERROR_SHORTUTF8 : PCRE_ERROR_BADUTF8;
+#endif
+    }
+
+  /* Check that a start_offset points to the start of a UTF character. */
+  if (start_offset > 0 && start_offset < length &&
+      NOT_FIRSTCHAR(((PCRE_PUCHAR)subject)[start_offset]))
+    return PCRE_ERROR_BADUTF8_OFFSET;
+  }
+#endif
+
+/* If the pattern was successfully studied with JIT support, run the JIT
+executable instead of the rest of this function. Most options must be set at
+compile time for the JIT code to be usable. Fallback to the normal code path if
+an unsupported flag is set. */
+
+#ifdef SUPPORT_JIT
+if (extra_data != NULL
+    && (extra_data->flags & (PCRE_EXTRA_EXECUTABLE_JIT |
+                             PCRE_EXTRA_TABLES)) == PCRE_EXTRA_EXECUTABLE_JIT
+    && extra_data->executable_jit != NULL
+    && (options & ~(PCRE_NO_UTF8_CHECK | PCRE_NOTBOL | PCRE_NOTEOL |
+                    PCRE_NOTEMPTY | PCRE_NOTEMPTY_ATSTART |
+                    PCRE_PARTIAL_SOFT | PCRE_PARTIAL_HARD)) == 0)
+  {
+  rc = PRIV(jit_exec)(re, extra_data, (const pcre_uchar *)subject, length,
+       start_offset, options, offsets, offsetcount);
+
+  /* PCRE_ERROR_NULL means that the selected normal or partial matching
+  mode is not compiled. In this case we simply fallback to interpreter. */
+
+  if (rc != PCRE_ERROR_NULL) return rc;
+  }
+#endif
+
+/* Carry on with non-JIT matching. This information is for finding all the
+numbers associated with a given name, for condition testing. */
+
+md->name_table = (pcre_uchar *)re + re->name_table_offset;
+md->name_count = re->name_count;
+md->name_entry_size = re->name_entry_size;
+
+/* Fish out the optional data from the extra_data structure, first setting
+the default values. */
+
+study = NULL;
+md->match_limit = MATCH_LIMIT;
+md->match_limit_recursion = MATCH_LIMIT_RECURSION;
+md->callout_data = NULL;
+
+/* The table pointer is always in native byte order. */
+
+tables = re->tables;
+
+if (extra_data != NULL)
+  {
+  register unsigned int flags = extra_data->flags;
+  if ((flags & PCRE_EXTRA_STUDY_DATA) != 0)
+    study = (const pcre_study_data *)extra_data->study_data;
+  if ((flags & PCRE_EXTRA_MATCH_LIMIT) != 0)
+    md->match_limit = extra_data->match_limit;
+  if ((flags & PCRE_EXTRA_MATCH_LIMIT_RECURSION) != 0)
+    md->match_limit_recursion = extra_data->match_limit_recursion;
+  if ((flags & PCRE_EXTRA_CALLOUT_DATA) != 0)
+    md->callout_data = extra_data->callout_data;
+  if ((flags & PCRE_EXTRA_TABLES) != 0) tables = extra_data->tables;
+  }
+
+/* If the exec call supplied NULL for tables, use the inbuilt ones. This
+is a feature that makes it possible to save compiled regex and re-use them
+in other programs later. */
+
+if (tables == NULL) tables = PRIV(default_tables);
+
+/* Set up other data */
+
+anchored = ((re->options | options) & PCRE_ANCHORED) != 0;
+startline = (re->flags & PCRE_STARTLINE) != 0;
+firstline = (re->options & PCRE_FIRSTLINE) != 0;
+
+/* The code starts after the real_pcre block and the capture name table. */
+
+md->start_code = (const pcre_uchar *)re + re->name_table_offset +
+  re->name_count * re->name_entry_size;
+
+md->start_subject = (PCRE_PUCHAR)subject;
+md->start_offset = start_offset;
+md->end_subject = md->start_subject + length;
+end_subject = md->end_subject;
+
+md->endonly = (re->options & PCRE_DOLLAR_ENDONLY) != 0;
+md->use_ucp = (re->options & PCRE_UCP) != 0;
+md->jscript_compat = (re->options & PCRE_JAVASCRIPT_COMPAT) != 0;
+md->ignore_skip_arg = FALSE;
+
+/* Some options are unpacked into BOOL variables in the hope that testing
+them will be faster than individual option bits. */
+
+md->notbol = (options & PCRE_NOTBOL) != 0;
+md->noteol = (options & PCRE_NOTEOL) != 0;
+md->notempty = (options & PCRE_NOTEMPTY) != 0;
+md->notempty_atstart = (options & PCRE_NOTEMPTY_ATSTART) != 0;
+
+md->hitend = FALSE;
+md->mark = md->nomatch_mark = NULL;     /* In case never set */
+
+md->recursive = NULL;                   /* No recursion at top level */
+md->hasthen = (re->flags & PCRE_HASTHEN) != 0;
+
+md->lcc = tables + lcc_offset;
+md->fcc = tables + fcc_offset;
+md->ctypes = tables + ctypes_offset;
+
+/* Handle different \R options. */
+
+switch (options & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE))
+  {
+  case 0:
+  if ((re->options & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)) != 0)
+    md->bsr_anycrlf = (re->options & PCRE_BSR_ANYCRLF) != 0;
+  else
+#ifdef BSR_ANYCRLF
+  md->bsr_anycrlf = TRUE;
+#else
+  md->bsr_anycrlf = FALSE;
+#endif
+  break;
+
+  case PCRE_BSR_ANYCRLF:
+  md->bsr_anycrlf = TRUE;
+  break;
+
+  case PCRE_BSR_UNICODE:
+  md->bsr_anycrlf = FALSE;
+  break;
+
+  default: return PCRE_ERROR_BADNEWLINE;
+  }
+
+/* Handle different types of newline. The three bits give eight cases. If
+nothing is set at run time, whatever was used at compile time applies. */
+
+switch ((((options & PCRE_NEWLINE_BITS) == 0)? re->options :
+        (pcre_uint32)options) & PCRE_NEWLINE_BITS)
+  {
+  case 0: newline = NEWLINE; break;   /* Compile-time default */
+  case PCRE_NEWLINE_CR: newline = CHAR_CR; break;
+  case PCRE_NEWLINE_LF: newline = CHAR_NL; break;
+  case PCRE_NEWLINE_CR+
+       PCRE_NEWLINE_LF: newline = (CHAR_CR << 8) | CHAR_NL; break;
+  case PCRE_NEWLINE_ANY: newline = -1; break;
+  case PCRE_NEWLINE_ANYCRLF: newline = -2; break;
+  default: return PCRE_ERROR_BADNEWLINE;
+  }
+
+if (newline == -2)
+  {
+  md->nltype = NLTYPE_ANYCRLF;
+  }
+else if (newline < 0)
+  {
+  md->nltype = NLTYPE_ANY;
+  }
+else
+  {
+  md->nltype = NLTYPE_FIXED;
+  if (newline > 255)
+    {
+    md->nllen = 2;
+    md->nl[0] = (newline >> 8) & 255;
+    md->nl[1] = newline & 255;
+    }
+  else
+    {
+    md->nllen = 1;
+    md->nl[0] = newline;
+    }
+  }
+
+/* Partial matching was originally supported only for a restricted set of
+regexes; from release 8.00 there are no restrictions, but the bits are still
+defined (though never set). So there's no harm in leaving this code. */
+
+if (md->partial && (re->flags & PCRE_NOPARTIAL) != 0)
+  return PCRE_ERROR_BADPARTIAL;
+
+/* If the expression has got more back references than the offsets supplied can
+hold, we get a temporary chunk of working store to use during the matching.
+Otherwise, we can use the vector supplied, rounding down its size to a multiple
+of 3. */
+
+ocount = offsetcount - (offsetcount % 3);
+arg_offset_max = (2*ocount)/3;
+
+if (re->top_backref > 0 && re->top_backref >= ocount/3)
+  {
+  ocount = re->top_backref * 3 + 3;
+  md->offset_vector = (int *)(PUBL(malloc))(ocount * sizeof(int));
+  if (md->offset_vector == NULL) return PCRE_ERROR_NOMEMORY;
+  using_temporary_offsets = TRUE;
+  DPRINTF(("Got memory to hold back references\n"));
+  }
+else md->offset_vector = offsets;
+
+md->offset_end = ocount;
+md->offset_max = (2*ocount)/3;
+md->offset_overflow = FALSE;
+md->capture_last = -1;
+
+/* Reset the working variable associated with each extraction. These should
+never be used unless previously set, but they get saved and restored, and so we
+initialize them to avoid reading uninitialized locations. Also, unset the
+offsets for the matched string. This is really just for tidiness with callouts,
+in case they inspect these fields. */
+
+if (md->offset_vector != NULL)
+  {
+  register int *iptr = md->offset_vector + ocount;
+  register int *iend = iptr - re->top_bracket;
+  if (iend < md->offset_vector + 2) iend = md->offset_vector + 2;
+  while (--iptr >= iend) *iptr = -1;
+  md->offset_vector[0] = md->offset_vector[1] = -1;
+  }
+
+/* Set up the first character to match, if available. The first_char value is
+never set for an anchored regular expression, but the anchoring may be forced
+at run time, so we have to test for anchoring. The first char may be unset for
+an unanchored pattern, of course. If there's no first char and the pattern was
+studied, there may be a bitmap of possible first characters. */
+
+if (!anchored)
+  {
+  if ((re->flags & PCRE_FIRSTSET) != 0)
+    {
+    has_first_char = TRUE;
+    first_char = first_char2 = (pcre_uchar)(re->first_char);
+    if ((re->flags & PCRE_FCH_CASELESS) != 0)
+      {
+      first_char2 = TABLE_GET(first_char, md->fcc, first_char);
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+      if (utf && first_char > 127)
+        first_char2 = UCD_OTHERCASE(first_char);
+#endif
+      }
+    }
+  else
+    if (!startline && study != NULL &&
+      (study->flags & PCRE_STUDY_MAPPED) != 0)
+        start_bits = study->start_bits;
+  }
+
+/* For anchored or unanchored matches, there may be a "last known required
+character" set. */
+
+if ((re->flags & PCRE_REQCHSET) != 0)
+  {
+  has_req_char = TRUE;
+  req_char = req_char2 = (pcre_uchar)(re->req_char);
+  if ((re->flags & PCRE_RCH_CASELESS) != 0)
+    {
+    req_char2 = TABLE_GET(req_char, md->fcc, req_char);
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+    if (utf && req_char > 127)
+      req_char2 = UCD_OTHERCASE(req_char);
+#endif
+    }
+  }
+
+
+/* ==========================================================================*/
+
+/* Loop for handling unanchored repeated matching attempts; for anchored regexs
+the loop runs just once. */
+
+for(;;)
+  {
+  PCRE_PUCHAR save_end_subject = end_subject;
+  PCRE_PUCHAR new_start_match;
+
+  /* If firstline is TRUE, the start of the match is constrained to the first
+  line of a multiline string. That is, the match must be before or at the first
+  newline. Implement this by temporarily adjusting end_subject so that we stop
+  scanning at a newline. If the match fails at the newline, later code breaks
+  this loop. */
+
+  if (firstline)
+    {
+    PCRE_PUCHAR t = start_match;
+#ifdef SUPPORT_UTF
+    if (utf)
+      {
+      while (t < md->end_subject && !IS_NEWLINE(t))
+        {
+        t++;
+        ACROSSCHAR(t < end_subject, *t, t++);
+        }
+      }
+    else
+#endif
+    while (t < md->end_subject && !IS_NEWLINE(t)) t++;
+    end_subject = t;
+    }
+
+  /* There are some optimizations that avoid running the match if a known
+  starting point is not found, or if a known later character is not present.
+  However, there is an option that disables these, for testing and for ensuring
+  that all callouts do actually occur. The option can be set in the regex by
+  (*NO_START_OPT) or passed in match-time options. */
+
+  if (((options | re->options) & PCRE_NO_START_OPTIMIZE) == 0)
+    {
+    /* Advance to a unique first char if there is one. */
+
+    if (has_first_char)
+      {
+      if (first_char != first_char2)
+        while (start_match < end_subject &&
+            *start_match != first_char && *start_match != first_char2)
+          start_match++;
+      else
+        while (start_match < end_subject && *start_match != first_char)
+          start_match++;
+      }
+
+    /* Or to just after a linebreak for a multiline match */
+
+    else if (startline)
+      {
+      if (start_match > md->start_subject + start_offset)
+        {
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+          while (start_match < end_subject && !WAS_NEWLINE(start_match))
+            {
+            start_match++;
+            ACROSSCHAR(start_match < end_subject, *start_match,
+              start_match++);
+            }
+          }
+        else
+#endif
+        while (start_match < end_subject && !WAS_NEWLINE(start_match))
+          start_match++;
+
+        /* If we have just passed a CR and the newline option is ANY or ANYCRLF,
+        and we are now at a LF, advance the match position by one more character.
+        */
+
+        if (start_match[-1] == CHAR_CR &&
+             (md->nltype == NLTYPE_ANY || md->nltype == NLTYPE_ANYCRLF) &&
+             start_match < end_subject &&
+             *start_match == CHAR_NL)
+          start_match++;
+        }
+      }
+
+    /* Or to a non-unique first byte after study */
+
+    else if (start_bits != NULL)
+      {
+      while (start_match < end_subject)
+        {
+        register unsigned int c = *start_match;
+#ifndef COMPILE_PCRE8
+        if (c > 255) c = 255;
+#endif
+        if ((start_bits[c/8] & (1 << (c&7))) == 0)
+          {
+          start_match++;
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+          /* In non 8-bit mode, the iteration will stop for
+          characters > 255 at the beginning or not stop at all. */
+          if (utf)
+            ACROSSCHAR(start_match < end_subject, *start_match,
+              start_match++);
+#endif
+          }
+        else break;
+        }
+      }
+    }   /* Starting optimizations */
+
+  /* Restore fudged end_subject */
+
+  end_subject = save_end_subject;
+
+  /* The following two optimizations are disabled for partial matching or if
+  disabling is explicitly requested. */
+
+  if (((options | re->options) & PCRE_NO_START_OPTIMIZE) == 0 && !md->partial)
+    {
+    /* If the pattern was studied, a minimum subject length may be set. This is
+    a lower bound; no actual string of that length may actually match the
+    pattern. Although the value is, strictly, in characters, we treat it as
+    bytes to avoid spending too much time in this optimization. */
+
+    if (study != NULL && (study->flags & PCRE_STUDY_MINLEN) != 0 &&
+        (pcre_uint32)(end_subject - start_match) < study->minlength)
+      {
+      rc = MATCH_NOMATCH;
+      break;
+      }
+
+    /* If req_char is set, we know that that character must appear in the
+    subject for the match to succeed. If the first character is set, req_char
+    must be later in the subject; otherwise the test starts at the match point.
+    This optimization can save a huge amount of backtracking in patterns with
+    nested unlimited repeats that aren't going to match. Writing separate code
+    for cased/caseless versions makes it go faster, as does using an
+    autoincrement and backing off on a match.
+
+    HOWEVER: when the subject string is very, very long, searching to its end
+    can take a long time, and give bad performance on quite ordinary patterns.
+    This showed up when somebody was matching something like /^\d+C/ on a
+    32-megabyte string... so we don't do this when the string is sufficiently
+    long. */
+
+    if (has_req_char && end_subject - start_match < REQ_BYTE_MAX)
+      {
+      register PCRE_PUCHAR p = start_match + (has_first_char? 1:0);
+
+      /* We don't need to repeat the search if we haven't yet reached the
+      place we found it at last time. */
+
+      if (p > req_char_ptr)
+        {
+        if (req_char != req_char2)
+          {
+          while (p < end_subject)
+            {
+            register int pp = *p++;
+            if (pp == req_char || pp == req_char2) { p--; break; }
+            }
+          }
+        else
+          {
+          while (p < end_subject)
+            {
+            if (*p++ == req_char) { p--; break; }
+            }
+          }
+
+        /* If we can't find the required character, break the matching loop,
+        forcing a match failure. */
+
+        if (p >= end_subject)
+          {
+          rc = MATCH_NOMATCH;
+          break;
+          }
+
+        /* If we have found the required character, save the point where we
+        found it, so that we don't search again next time round the loop if
+        the start hasn't passed this character yet. */
+
+        req_char_ptr = p;
+        }
+      }
+    }
+
+#ifdef PCRE_DEBUG  /* Sigh. Some compilers never learn. */
+  printf(">>>> Match against: ");
+  pchars(start_match, end_subject - start_match, TRUE, md);
+  printf("\n");
+#endif
+
+  /* OK, we can now run the match. If "hitend" is set afterwards, remember the
+  first starting point for which a partial match was found. */
+
+  md->start_match_ptr = start_match;
+  md->start_used_ptr = start_match;
+  md->match_call_count = 0;
+  md->match_function_type = 0;
+  md->end_offset_top = 0;
+  rc = match(start_match, md->start_code, start_match, 2, md, NULL, 0);
+  if (md->hitend && start_partial == NULL) start_partial = md->start_used_ptr;
+
+  switch(rc)
+    {
+    /* If MATCH_SKIP_ARG reaches this level it means that a MARK that matched
+    the SKIP's arg was not found. In this circumstance, Perl ignores the SKIP
+    entirely. The only way we can do that is to re-do the match at the same
+    point, with a flag to force SKIP with an argument to be ignored. Just
+    treating this case as NOMATCH does not work because it does not check other
+    alternatives in patterns such as A(*SKIP:A)B|AC when the subject is AC. */
+
+    case MATCH_SKIP_ARG:
+    new_start_match = start_match;
+    md->ignore_skip_arg = TRUE;
+    break;
+
+    /* SKIP passes back the next starting point explicitly, but if it is the
+    same as the match we have just done, treat it as NOMATCH. */
+
+    case MATCH_SKIP:
+    if (md->start_match_ptr != start_match)
+      {
+      new_start_match = md->start_match_ptr;
+      break;
+      }
+    /* Fall through */
+
+    /* NOMATCH and PRUNE advance by one character. THEN at this level acts
+    exactly like PRUNE. Unset the ignore SKIP-with-argument flag. */
+
+    case MATCH_NOMATCH:
+    case MATCH_PRUNE:
+    case MATCH_THEN:
+    md->ignore_skip_arg = FALSE;
+    new_start_match = start_match + 1;
+#ifdef SUPPORT_UTF
+    if (utf)
+      ACROSSCHAR(new_start_match < end_subject, *new_start_match,
+        new_start_match++);
+#endif
+    break;
+
+    /* COMMIT disables the bumpalong, but otherwise behaves as NOMATCH. */
+
+    case MATCH_COMMIT:
+    rc = MATCH_NOMATCH;
+    goto ENDLOOP;
+
+    /* Any other return is either a match, or some kind of error. */
+
+    default:
+    goto ENDLOOP;
+    }
+
+  /* Control reaches here for the various types of "no match at this point"
+  result. Reset the code to MATCH_NOMATCH for subsequent checking. */
+
+  rc = MATCH_NOMATCH;
+
+  /* If PCRE_FIRSTLINE is set, the match must happen before or at the first
+  newline in the subject (though it may continue over the newline). Therefore,
+  if we have just failed to match, starting at a newline, do not continue. */
+
+  if (firstline && IS_NEWLINE(start_match)) break;
+
+  /* Advance to new matching position */
+
+  start_match = new_start_match;
+
+  /* Break the loop if the pattern is anchored or if we have passed the end of
+  the subject. */
+
+  if (anchored || start_match > end_subject) break;
+
+  /* If we have just passed a CR and we are now at a LF, and the pattern does
+  not contain any explicit matches for \r or \n, and the newline option is CRLF
+  or ANY or ANYCRLF, advance the match position by one more character. In
+  normal matching start_match will aways be greater than the first position at
+  this stage, but a failed *SKIP can cause a return at the same point, which is
+  why the first test exists. */
+
+  if (start_match > (PCRE_PUCHAR)subject + start_offset &&
+      start_match[-1] == CHAR_CR &&
+      start_match < end_subject &&
+      *start_match == CHAR_NL &&
+      (re->flags & PCRE_HASCRORLF) == 0 &&
+        (md->nltype == NLTYPE_ANY ||
+         md->nltype == NLTYPE_ANYCRLF ||
+         md->nllen == 2))
+    start_match++;
+
+  md->mark = NULL;   /* Reset for start of next match attempt */
+  }                  /* End of for(;;) "bumpalong" loop */
+
+/* ==========================================================================*/
+
+/* We reach here when rc is not MATCH_NOMATCH, or if one of the stopping
+conditions is true:
+
+(1) The pattern is anchored or the match was failed by (*COMMIT);
+
+(2) We are past the end of the subject;
+
+(3) PCRE_FIRSTLINE is set and we have failed to match at a newline, because
+    this option requests that a match occur at or before the first newline in
+    the subject.
+
+When we have a match and the offset vector is big enough to deal with any
+backreferences, captured substring offsets will already be set up. In the case
+where we had to get some local store to hold offsets for backreference
+processing, copy those that we can. In this case there need not be overflow if
+certain parts of the pattern were not used, even though there are more
+capturing parentheses than vector slots. */
+
+ENDLOOP:
+
+if (rc == MATCH_MATCH || rc == MATCH_ACCEPT)
+  {
+  if (using_temporary_offsets)
+    {
+    if (arg_offset_max >= 4)
+      {
+      memcpy(offsets + 2, md->offset_vector + 2,
+        (arg_offset_max - 2) * sizeof(int));
+      DPRINTF(("Copied offsets from temporary memory\n"));
+      }
+    if (md->end_offset_top > arg_offset_max) md->offset_overflow = TRUE;
+    DPRINTF(("Freeing temporary memory\n"));
+    (PUBL(free))(md->offset_vector);
+    }
+
+  /* Set the return code to the number of captured strings, or 0 if there were
+  too many to fit into the vector. */
+
+  rc = (md->offset_overflow && md->end_offset_top >= arg_offset_max)?
+    0 : md->end_offset_top/2;
+
+  /* If there is space in the offset vector, set any unused pairs at the end of
+  the pattern to -1 for backwards compatibility. It is documented that this
+  happens. In earlier versions, the whole set of potential capturing offsets
+  was set to -1 each time round the loop, but this is handled differently now.
+  "Gaps" are set to -1 dynamically instead (this fixes a bug). Thus, it is only
+  those at the end that need unsetting here. We can't just unset them all at
+  the start of the whole thing because they may get set in one branch that is
+  not the final matching branch. */
+
+  if (md->end_offset_top/2 <= re->top_bracket && offsets != NULL)
+    {
+    register int *iptr, *iend;
+    int resetcount = 2 + re->top_bracket * 2;
+    if (resetcount > offsetcount) resetcount = offsetcount;
+    iptr = offsets + md->end_offset_top;
+    iend = offsets + resetcount;
+    while (iptr < iend) *iptr++ = -1;
+    }
+
+  /* If there is space, set up the whole thing as substring 0. The value of
+  md->start_match_ptr might be modified if \K was encountered on the success
+  matching path. */
+
+  if (offsetcount < 2) rc = 0; else
+    {
+    offsets[0] = (int)(md->start_match_ptr - md->start_subject);
+    offsets[1] = (int)(md->end_match_ptr - md->start_subject);
+    }
+
+  /* Return MARK data if requested */
+
+  if (extra_data != NULL && (extra_data->flags & PCRE_EXTRA_MARK) != 0)
+    *(extra_data->mark) = (pcre_uchar *)md->mark;
+  DPRINTF((">>>> returning %d\n", rc));
+#ifdef NO_RECURSE
+  release_match_heapframes(&frame_zero);
+#endif
+  return rc;
+  }
+
+/* Control gets here if there has been an error, or if the overall match
+attempt has failed at all permitted starting positions. */
+
+if (using_temporary_offsets)
+  {
+  DPRINTF(("Freeing temporary memory\n"));
+  (PUBL(free))(md->offset_vector);
+  }
+
+/* For anything other than nomatch or partial match, just return the code. */
+
+if (rc != MATCH_NOMATCH && rc != PCRE_ERROR_PARTIAL)
+  {
+  DPRINTF((">>>> error: returning %d\n", rc));
+#ifdef NO_RECURSE
+  release_match_heapframes(&frame_zero);
+#endif
+  return rc;
+  }
+
+/* Handle partial matches - disable any mark data */
+
+if (start_partial != NULL)
+  {
+  DPRINTF((">>>> returning PCRE_ERROR_PARTIAL\n"));
+  md->mark = NULL;
+  if (offsetcount > 1)
+    {
+    offsets[0] = (int)(start_partial - (PCRE_PUCHAR)subject);
+    offsets[1] = (int)(end_subject - (PCRE_PUCHAR)subject);
+    }
+  rc = PCRE_ERROR_PARTIAL;
+  }
+
+/* This is the classic nomatch case */
+
+else
+  {
+  DPRINTF((">>>> returning PCRE_ERROR_NOMATCH\n"));
+  rc = PCRE_ERROR_NOMATCH;
+  }
+
+/* Return the MARK data if it has been requested. */
+
+if (extra_data != NULL && (extra_data->flags & PCRE_EXTRA_MARK) != 0)
+  *(extra_data->mark) = (pcre_uchar *)md->nomatch_mark;
+#ifdef NO_RECURSE
+  release_match_heapframes(&frame_zero);
+#endif
+return rc;
+}
+
+/* End of pcre_exec.c */
diff --git a/8.31/pcre_fullinfo.c b/8.31/pcre_fullinfo.c
new file mode 100644
index 0000000..7a7db11
--- /dev/null
+++ b/8.31/pcre_fullinfo.c
@@ -0,0 +1,206 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains the external function pcre_fullinfo(), which returns
+information about a compiled pattern. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+*        Return info about compiled pattern      *
+*************************************************/
+
+/* This is a newer "info" function which has an extensible interface so
+that additional items can be added compatibly.
+
+Arguments:
+  argument_re      points to compiled code
+  extra_data       points extra data, or NULL
+  what             what information is required
+  where            where to put the information
+
+Returns:           0 if data returned, negative on error
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_fullinfo(const pcre *argument_re, const pcre_extra *extra_data,
+  int what, void *where)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_fullinfo(const pcre16 *argument_re, const pcre16_extra *extra_data,
+  int what, void *where)
+#endif
+{
+const REAL_PCRE *re = (const REAL_PCRE *)argument_re;
+const pcre_study_data *study = NULL;
+
+if (re == NULL || where == NULL) return PCRE_ERROR_NULL;
+
+if (extra_data != NULL && (extra_data->flags & PCRE_EXTRA_STUDY_DATA) != 0)
+  study = (const pcre_study_data *)extra_data->study_data;
+
+/* Check that the first field in the block is the magic number. If it is not,
+return with PCRE_ERROR_BADMAGIC. However, if the magic number is equal to
+REVERSED_MAGIC_NUMBER we return with PCRE_ERROR_BADENDIANNESS, which
+means that the pattern is likely compiled with different endianness. */
+
+if (re->magic_number != MAGIC_NUMBER)
+  return re->magic_number == REVERSED_MAGIC_NUMBER?
+    PCRE_ERROR_BADENDIANNESS:PCRE_ERROR_BADMAGIC;
+
+/* Check that this pattern was compiled in the correct bit mode */
+
+if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
+
+switch (what)
+  {
+  case PCRE_INFO_OPTIONS:
+  *((unsigned long int *)where) = re->options & PUBLIC_COMPILE_OPTIONS;
+  break;
+
+  case PCRE_INFO_SIZE:
+  *((size_t *)where) = re->size;
+  break;
+
+  case PCRE_INFO_STUDYSIZE:
+  *((size_t *)where) = (study == NULL)? 0 : study->size;
+  break;
+
+  case PCRE_INFO_JITSIZE:
+#ifdef SUPPORT_JIT
+  *((size_t *)where) =
+      (extra_data != NULL &&
+      (extra_data->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 &&
+      extra_data->executable_jit != NULL)?
+    PRIV(jit_get_size)(extra_data->executable_jit) : 0;
+#else
+  *((size_t *)where) = 0;
+#endif
+  break;
+
+  case PCRE_INFO_CAPTURECOUNT:
+  *((int *)where) = re->top_bracket;
+  break;
+
+  case PCRE_INFO_BACKREFMAX:
+  *((int *)where) = re->top_backref;
+  break;
+
+  case PCRE_INFO_FIRSTBYTE:
+  *((int *)where) =
+    ((re->flags & PCRE_FIRSTSET) != 0)? re->first_char :
+    ((re->flags & PCRE_STARTLINE) != 0)? -1 : -2;
+  break;
+
+  /* Make sure we pass back the pointer to the bit vector in the external
+  block, not the internal copy (with flipped integer fields). */
+
+  case PCRE_INFO_FIRSTTABLE:
+  *((const pcre_uint8 **)where) =
+    (study != NULL && (study->flags & PCRE_STUDY_MAPPED) != 0)?
+      ((const pcre_study_data *)extra_data->study_data)->start_bits : NULL;
+  break;
+
+  case PCRE_INFO_MINLENGTH:
+  *((int *)where) =
+    (study != NULL && (study->flags & PCRE_STUDY_MINLEN) != 0)?
+      (int)(study->minlength) : -1;
+  break;
+
+  case PCRE_INFO_JIT:
+  *((int *)where) = extra_data != NULL &&
+                    (extra_data->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 &&
+                    extra_data->executable_jit != NULL;
+  break;
+
+  case PCRE_INFO_LASTLITERAL:
+  *((int *)where) =
+    ((re->flags & PCRE_REQCHSET) != 0)? re->req_char : -1;
+  break;
+
+  case PCRE_INFO_NAMEENTRYSIZE:
+  *((int *)where) = re->name_entry_size;
+  break;
+
+  case PCRE_INFO_NAMECOUNT:
+  *((int *)where) = re->name_count;
+  break;
+
+  case PCRE_INFO_NAMETABLE:
+  *((const pcre_uchar **)where) = (const pcre_uchar *)re + re->name_table_offset;
+  break;
+
+  case PCRE_INFO_DEFAULT_TABLES:
+  *((const pcre_uint8 **)where) = (const pcre_uint8 *)(PRIV(default_tables));
+  break;
+
+  /* From release 8.00 this will always return TRUE because NOPARTIAL is
+  no longer ever set (the restrictions have been removed). */
+
+  case PCRE_INFO_OKPARTIAL:
+  *((int *)where) = (re->flags & PCRE_NOPARTIAL) == 0;
+  break;
+
+  case PCRE_INFO_JCHANGED:
+  *((int *)where) = (re->flags & PCRE_JCHANGED) != 0;
+  break;
+
+  case PCRE_INFO_HASCRORLF:
+  *((int *)where) = (re->flags & PCRE_HASCRORLF) != 0;
+  break;
+
+  case PCRE_INFO_MAXLOOKBEHIND:
+  *((int *)where) = re->max_lookbehind;
+  break;
+
+  default: return PCRE_ERROR_BADOPTION;
+  }
+
+return 0;
+}
+
+/* End of pcre_fullinfo.c */
diff --git a/8.31/pcre_get.c b/8.31/pcre_get.c
new file mode 100644
index 0000000..3d9904e
--- /dev/null
+++ b/8.31/pcre_get.c
@@ -0,0 +1,587 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains some convenience functions for extracting substrings
+from the subject string after a regex match has succeeded. The original idea
+for these functions came from Scott Wimer. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+*           Find number for named string         *
+*************************************************/
+
+/* This function is used by the get_first_set() function below, as well
+as being generally available. It assumes that names are unique.
+
+Arguments:
+  code        the compiled regex
+  stringname  the name whose number is required
+
+Returns:      the number of the named parentheses, or a negative number
+                (PCRE_ERROR_NOSUBSTRING) if not found
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_get_stringnumber(const pcre *code, const char *stringname)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_get_stringnumber(const pcre16 *code, PCRE_SPTR16 stringname)
+#endif
+{
+int rc;
+int entrysize;
+int top, bot;
+pcre_uchar *nametable;
+
+#ifdef COMPILE_PCRE8
+if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
+  return rc;
+if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
+
+if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
+  return rc;
+if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
+  return rc;
+#endif
+#ifdef COMPILE_PCRE16
+if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
+  return rc;
+if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
+
+if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
+  return rc;
+if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
+  return rc;
+#endif
+
+bot = 0;
+while (top > bot)
+  {
+  int mid = (top + bot) / 2;
+  pcre_uchar *entry = nametable + entrysize*mid;
+  int c = STRCMP_UC_UC((pcre_uchar *)stringname,
+    (pcre_uchar *)(entry + IMM2_SIZE));
+  if (c == 0) return GET2(entry, 0);
+  if (c > 0) bot = mid + 1; else top = mid;
+  }
+
+return PCRE_ERROR_NOSUBSTRING;
+}
+
+
+
+/*************************************************
+*     Find (multiple) entries for named string   *
+*************************************************/
+
+/* This is used by the get_first_set() function below, as well as being
+generally available. It is used when duplicated names are permitted.
+
+Arguments:
+  code        the compiled regex
+  stringname  the name whose entries required
+  firstptr    where to put the pointer to the first entry
+  lastptr     where to put the pointer to the last entry
+
+Returns:      the length of each entry, or a negative number
+                (PCRE_ERROR_NOSUBSTRING) if not found
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_get_stringtable_entries(const pcre *code, const char *stringname,
+  char **firstptr, char **lastptr)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_get_stringtable_entries(const pcre16 *code, PCRE_SPTR16 stringname,
+  PCRE_UCHAR16 **firstptr, PCRE_UCHAR16 **lastptr)
+#endif
+{
+int rc;
+int entrysize;
+int top, bot;
+pcre_uchar *nametable, *lastentry;
+
+#ifdef COMPILE_PCRE8
+if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
+  return rc;
+if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
+
+if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
+  return rc;
+if ((rc = pcre_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
+  return rc;
+#endif
+#ifdef COMPILE_PCRE16
+if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMECOUNT, &top)) != 0)
+  return rc;
+if (top <= 0) return PCRE_ERROR_NOSUBSTRING;
+
+if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMEENTRYSIZE, &entrysize)) != 0)
+  return rc;
+if ((rc = pcre16_fullinfo(code, NULL, PCRE_INFO_NAMETABLE, &nametable)) != 0)
+  return rc;
+#endif
+
+lastentry = nametable + entrysize * (top - 1);
+bot = 0;
+while (top > bot)
+  {
+  int mid = (top + bot) / 2;
+  pcre_uchar *entry = nametable + entrysize*mid;
+  int c = STRCMP_UC_UC((pcre_uchar *)stringname,
+    (pcre_uchar *)(entry + IMM2_SIZE));
+  if (c == 0)
+    {
+    pcre_uchar *first = entry;
+    pcre_uchar *last = entry;
+    while (first > nametable)
+      {
+      if (STRCMP_UC_UC((pcre_uchar *)stringname,
+        (pcre_uchar *)(first - entrysize + IMM2_SIZE)) != 0) break;
+      first -= entrysize;
+      }
+    while (last < lastentry)
+      {
+      if (STRCMP_UC_UC((pcre_uchar *)stringname,
+        (pcre_uchar *)(last + entrysize + IMM2_SIZE)) != 0) break;
+      last += entrysize;
+      }
+#ifdef COMPILE_PCRE8
+    *firstptr = (char *)first;
+    *lastptr = (char *)last;
+#else
+    *firstptr = (PCRE_UCHAR16 *)first;
+    *lastptr = (PCRE_UCHAR16 *)last;
+#endif
+    return entrysize;
+    }
+  if (c > 0) bot = mid + 1; else top = mid;
+  }
+
+return PCRE_ERROR_NOSUBSTRING;
+}
+
+
+
+/*************************************************
+*    Find first set of multiple named strings    *
+*************************************************/
+
+/* This function allows for duplicate names in the table of named substrings.
+It returns the number of the first one that was set in a pattern match.
+
+Arguments:
+  code         the compiled regex
+  stringname   the name of the capturing substring
+  ovector      the vector of matched substrings
+
+Returns:       the number of the first that is set,
+               or the number of the last one if none are set,
+               or a negative number on error
+*/
+
+#ifdef COMPILE_PCRE8
+static int
+get_first_set(const pcre *code, const char *stringname, int *ovector)
+#else
+static int
+get_first_set(const pcre16 *code, PCRE_SPTR16 stringname, int *ovector)
+#endif
+{
+const REAL_PCRE *re = (const REAL_PCRE *)code;
+int entrysize;
+pcre_uchar *entry;
+#ifdef COMPILE_PCRE8
+char *first, *last;
+#else
+PCRE_UCHAR16 *first, *last;
+#endif
+
+#ifdef COMPILE_PCRE8
+if ((re->options & PCRE_DUPNAMES) == 0 && (re->flags & PCRE_JCHANGED) == 0)
+  return pcre_get_stringnumber(code, stringname);
+entrysize = pcre_get_stringtable_entries(code, stringname, &first, &last);
+#else
+if ((re->options & PCRE_DUPNAMES) == 0 && (re->flags & PCRE_JCHANGED) == 0)
+  return pcre16_get_stringnumber(code, stringname);
+entrysize = pcre16_get_stringtable_entries(code, stringname, &first, &last);
+#endif
+if (entrysize <= 0) return entrysize;
+for (entry = (pcre_uchar *)first; entry <= (pcre_uchar *)last; entry += entrysize)
+  {
+  int n = GET2(entry, 0);
+  if (ovector[n*2] >= 0) return n;
+  }
+return GET2(entry, 0);
+}
+
+
+
+
+/*************************************************
+*      Copy captured string to given buffer      *
+*************************************************/
+
+/* This function copies a single captured substring into a given buffer.
+Note that we use memcpy() rather than strncpy() in case there are binary zeros
+in the string.
+
+Arguments:
+  subject        the subject string that was matched
+  ovector        pointer to the offsets table
+  stringcount    the number of substrings that were captured
+                   (i.e. the yield of the pcre_exec call, unless
+                   that was zero, in which case it should be 1/3
+                   of the offset table size)
+  stringnumber   the number of the required substring
+  buffer         where to put the substring
+  size           the size of the buffer
+
+Returns:         if successful:
+                   the length of the copied string, not including the zero
+                   that is put on the end; can be zero
+                 if not successful:
+                   PCRE_ERROR_NOMEMORY (-6) buffer too small
+                   PCRE_ERROR_NOSUBSTRING (-7) no such captured substring
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_copy_substring(const char *subject, int *ovector, int stringcount,
+  int stringnumber, char *buffer, int size)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_copy_substring(PCRE_SPTR16 subject, int *ovector, int stringcount,
+  int stringnumber, PCRE_UCHAR16 *buffer, int size)
+#endif
+{
+int yield;
+if (stringnumber < 0 || stringnumber >= stringcount)
+  return PCRE_ERROR_NOSUBSTRING;
+stringnumber *= 2;
+yield = ovector[stringnumber+1] - ovector[stringnumber];
+if (size < yield + 1) return PCRE_ERROR_NOMEMORY;
+memcpy(buffer, subject + ovector[stringnumber], IN_UCHARS(yield));
+buffer[yield] = 0;
+return yield;
+}
+
+
+
+/*************************************************
+*   Copy named captured string to given buffer   *
+*************************************************/
+
+/* This function copies a single captured substring into a given buffer,
+identifying it by name. If the regex permits duplicate names, the first
+substring that is set is chosen.
+
+Arguments:
+  code           the compiled regex
+  subject        the subject string that was matched
+  ovector        pointer to the offsets table
+  stringcount    the number of substrings that were captured
+                   (i.e. the yield of the pcre_exec call, unless
+                   that was zero, in which case it should be 1/3
+                   of the offset table size)
+  stringname     the name of the required substring
+  buffer         where to put the substring
+  size           the size of the buffer
+
+Returns:         if successful:
+                   the length of the copied string, not including the zero
+                   that is put on the end; can be zero
+                 if not successful:
+                   PCRE_ERROR_NOMEMORY (-6) buffer too small
+                   PCRE_ERROR_NOSUBSTRING (-7) no such captured substring
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_copy_named_substring(const pcre *code, const char *subject,
+  int *ovector, int stringcount, const char *stringname,
+  char *buffer, int size)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_copy_named_substring(const pcre16 *code, PCRE_SPTR16 subject,
+  int *ovector, int stringcount, PCRE_SPTR16 stringname,
+  PCRE_UCHAR16 *buffer, int size)
+#endif
+{
+int n = get_first_set(code, stringname, ovector);
+if (n <= 0) return n;
+#ifdef COMPILE_PCRE8
+return pcre_copy_substring(subject, ovector, stringcount, n, buffer, size);
+#else
+return pcre16_copy_substring(subject, ovector, stringcount, n, buffer, size);
+#endif
+}
+
+
+
+/*************************************************
+*      Copy all captured strings to new store    *
+*************************************************/
+
+/* This function gets one chunk of store and builds a list of pointers and all
+of the captured substrings in it. A NULL pointer is put on the end of the list.
+
+Arguments:
+  subject        the subject string that was matched
+  ovector        pointer to the offsets table
+  stringcount    the number of substrings that were captured
+                   (i.e. the yield of the pcre_exec call, unless
+                   that was zero, in which case it should be 1/3
+                   of the offset table size)
+  listptr        set to point to the list of pointers
+
+Returns:         if successful: 0
+                 if not successful:
+                   PCRE_ERROR_NOMEMORY (-6) failed to get store
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_get_substring_list(const char *subject, int *ovector, int stringcount,
+  const char ***listptr)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_get_substring_list(PCRE_SPTR16 subject, int *ovector, int stringcount,
+  PCRE_SPTR16 **listptr)
+#endif
+{
+int i;
+int size = sizeof(pcre_uchar *);
+int double_count = stringcount * 2;
+pcre_uchar **stringlist;
+pcre_uchar *p;
+
+for (i = 0; i < double_count; i += 2)
+  size += sizeof(pcre_uchar *) + IN_UCHARS(ovector[i+1] - ovector[i] + 1);
+
+stringlist = (pcre_uchar **)(PUBL(malloc))(size);
+if (stringlist == NULL) return PCRE_ERROR_NOMEMORY;
+
+#ifdef COMPILE_PCRE8
+*listptr = (const char **)stringlist;
+#else
+*listptr = (PCRE_SPTR16 *)stringlist;
+#endif
+p = (pcre_uchar *)(stringlist + stringcount + 1);
+
+for (i = 0; i < double_count; i += 2)
+  {
+  int len = ovector[i+1] - ovector[i];
+  memcpy(p, subject + ovector[i], IN_UCHARS(len));
+  *stringlist++ = p;
+  p += len;
+  *p++ = 0;
+  }
+
+*stringlist = NULL;
+return 0;
+}
+
+
+
+/*************************************************
+*   Free store obtained by get_substring_list    *
+*************************************************/
+
+/* This function exists for the benefit of people calling PCRE from non-C
+programs that can call its functions, but not free() or (PUBL(free))()
+directly.
+
+Argument:   the result of a previous pcre_get_substring_list()
+Returns:    nothing
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
+pcre_free_substring_list(const char **pointer)
+#else
+PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
+pcre16_free_substring_list(PCRE_SPTR16 *pointer)
+#endif
+{
+(PUBL(free))((void *)pointer);
+}
+
+
+
+/*************************************************
+*      Copy captured string to new store         *
+*************************************************/
+
+/* This function copies a single captured substring into a piece of new
+store
+
+Arguments:
+  subject        the subject string that was matched
+  ovector        pointer to the offsets table
+  stringcount    the number of substrings that were captured
+                   (i.e. the yield of the pcre_exec call, unless
+                   that was zero, in which case it should be 1/3
+                   of the offset table size)
+  stringnumber   the number of the required substring
+  stringptr      where to put a pointer to the substring
+
+Returns:         if successful:
+                   the length of the string, not including the zero that
+                   is put on the end; can be zero
+                 if not successful:
+                   PCRE_ERROR_NOMEMORY (-6) failed to get store
+                   PCRE_ERROR_NOSUBSTRING (-7) substring not present
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_get_substring(const char *subject, int *ovector, int stringcount,
+  int stringnumber, const char **stringptr)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_get_substring(PCRE_SPTR16 subject, int *ovector, int stringcount,
+  int stringnumber, PCRE_SPTR16 *stringptr)
+#endif
+{
+int yield;
+pcre_uchar *substring;
+if (stringnumber < 0 || stringnumber >= stringcount)
+  return PCRE_ERROR_NOSUBSTRING;
+stringnumber *= 2;
+yield = ovector[stringnumber+1] - ovector[stringnumber];
+substring = (pcre_uchar *)(PUBL(malloc))(IN_UCHARS(yield + 1));
+if (substring == NULL) return PCRE_ERROR_NOMEMORY;
+memcpy(substring, subject + ovector[stringnumber], IN_UCHARS(yield));
+substring[yield] = 0;
+#ifdef COMPILE_PCRE8
+*stringptr = (const char *)substring;
+#else
+*stringptr = (PCRE_SPTR16)substring;
+#endif
+return yield;
+}
+
+
+
+/*************************************************
+*   Copy named captured string to new store      *
+*************************************************/
+
+/* This function copies a single captured substring, identified by name, into
+new store. If the regex permits duplicate names, the first substring that is
+set is chosen.
+
+Arguments:
+  code           the compiled regex
+  subject        the subject string that was matched
+  ovector        pointer to the offsets table
+  stringcount    the number of substrings that were captured
+                   (i.e. the yield of the pcre_exec call, unless
+                   that was zero, in which case it should be 1/3
+                   of the offset table size)
+  stringname     the name of the required substring
+  stringptr      where to put the pointer
+
+Returns:         if successful:
+                   the length of the copied string, not including the zero
+                   that is put on the end; can be zero
+                 if not successful:
+                   PCRE_ERROR_NOMEMORY (-6) couldn't get memory
+                   PCRE_ERROR_NOSUBSTRING (-7) no such captured substring
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_get_named_substring(const pcre *code, const char *subject,
+  int *ovector, int stringcount, const char *stringname,
+  const char **stringptr)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_get_named_substring(const pcre16 *code, PCRE_SPTR16 subject,
+  int *ovector, int stringcount, PCRE_SPTR16 stringname,
+  PCRE_SPTR16 *stringptr)
+#endif
+{
+int n = get_first_set(code, stringname, ovector);
+if (n <= 0) return n;
+#ifdef COMPILE_PCRE8
+return pcre_get_substring(subject, ovector, stringcount, n, stringptr);
+#else
+return pcre16_get_substring(subject, ovector, stringcount, n, stringptr);
+#endif
+}
+
+
+
+
+/*************************************************
+*       Free store obtained by get_substring     *
+*************************************************/
+
+/* This function exists for the benefit of people calling PCRE from non-C
+programs that can call its functions, but not free() or (PUBL(free))()
+directly.
+
+Argument:   the result of a previous pcre_get_substring()
+Returns:    nothing
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
+pcre_free_substring(const char *pointer)
+#else
+PCRE_EXP_DEFN void PCRE_CALL_CONVENTION
+pcre16_free_substring(PCRE_SPTR16 pointer)
+#endif
+{
+(PUBL(free))((void *)pointer);
+}
+
+/* End of pcre_get.c */
diff --git a/8.31/pcre_globals.c b/8.31/pcre_globals.c
new file mode 100644
index 0000000..36e6ddb
--- /dev/null
+++ b/8.31/pcre_globals.c
@@ -0,0 +1,84 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains global variables that are exported by the PCRE library.
+PCRE is thread-clean and doesn't use any global variables in the normal sense.
+However, it calls memory allocation and freeing functions via the four
+indirections below, and it can optionally do callouts, using the fifth
+indirection. These values can be changed by the caller, but are shared between
+all threads.
+
+For MS Visual Studio and Symbian OS, there are problems in initializing these
+variables to non-local functions. In these cases, therefore, an indirection via
+a local function is used.
+
+Also, when compiling for Virtual Pascal, things are done differently, and
+global variables are not used. */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+#if defined _MSC_VER || defined  __SYMBIAN32__
+static void* LocalPcreMalloc(size_t aSize)
+  {
+  return malloc(aSize);
+  }
+static void LocalPcreFree(void* aPtr)
+  {
+  free(aPtr);
+  }
+PCRE_EXP_DATA_DEFN void *(*PUBL(malloc))(size_t) = LocalPcreMalloc;
+PCRE_EXP_DATA_DEFN void  (*PUBL(free))(void *) = LocalPcreFree;
+PCRE_EXP_DATA_DEFN void *(*PUBL(stack_malloc))(size_t) = LocalPcreMalloc;
+PCRE_EXP_DATA_DEFN void  (*PUBL(stack_free))(void *) = LocalPcreFree;
+PCRE_EXP_DATA_DEFN int   (*PUBL(callout))(PUBL(callout_block) *) = NULL;
+
+#elif !defined VPCOMPAT
+PCRE_EXP_DATA_DEFN void *(*PUBL(malloc))(size_t) = malloc;
+PCRE_EXP_DATA_DEFN void  (*PUBL(free))(void *) = free;
+PCRE_EXP_DATA_DEFN void *(*PUBL(stack_malloc))(size_t) = malloc;
+PCRE_EXP_DATA_DEFN void  (*PUBL(stack_free))(void *) = free;
+PCRE_EXP_DATA_DEFN int   (*PUBL(callout))(PUBL(callout_block) *) = NULL;
+#endif
+
+/* End of pcre_globals.c */
diff --git a/8.31/pcre_grep_test.sh b/8.31/pcre_grep_test.sh
new file mode 100644
index 0000000..b299a8f
--- /dev/null
+++ b/8.31/pcre_grep_test.sh
@@ -0,0 +1,8 @@
+#! /bin/sh
+# This is a generated file.
+srcdir=D:/dev/chrisndt2main/sw/devtools/metools/public/UIComposer/Tools/pcre/8.31
+pcregrep=D:/dev/chrisndt2main/sw/devtools/metools/public/UIComposer/Tools/pcre/8.31/DEBUG/pcregrep.exe
+pcretest=D:/dev/chrisndt2main/sw/devtools/metools/public/UIComposer/Tools/pcre/8.31/DEBUG/pcretest.exe
+source D:/dev/chrisndt2main/sw/devtools/metools/public/UIComposer/Tools/pcre/8.31/RunGrepTest
+if test "$?" != "0"; then exit 1; fi
+# End
diff --git a/8.31/pcre_internal.h b/8.31/pcre_internal.h
new file mode 100644
index 0000000..b8f40ec
--- /dev/null
+++ b/8.31/pcre_internal.h
@@ -0,0 +1,2346 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+/* This header contains definitions that are shared between the different
+modules, but which are not relevant to the exported API. This includes some
+functions whose names all begin with "_pcre_" or "_pcre16_" depending on
+the PRIV macro. */
+
+#ifndef PCRE_INTERNAL_H
+#define PCRE_INTERNAL_H
+
+/* Define PCRE_DEBUG to get debugging output on stdout. */
+
+#if 0
+#define PCRE_DEBUG
+#endif
+
+/* PCRE is compiled as an 8 bit library if it is not requested otherwise. */
+#ifndef COMPILE_PCRE16
+#define COMPILE_PCRE8
+#endif
+
+/* If SUPPORT_UCP is defined, SUPPORT_UTF must also be defined. The
+"configure" script ensures this, but not everybody uses "configure". */
+
+#if defined SUPPORT_UCP && !(defined SUPPORT_UTF)
+#define SUPPORT_UTF 1
+#endif
+
+/* We define SUPPORT_UTF if SUPPORT_UTF8 is enabled for compatibility
+reasons with existing code. */
+
+#if defined SUPPORT_UTF8 && !(defined SUPPORT_UTF)
+#define SUPPORT_UTF 1
+#endif
+
+/* Fixme: SUPPORT_UTF8 should be eventually disappear from the code.
+Until then we define it if SUPPORT_UTF is defined. */
+
+#if defined SUPPORT_UTF && !(defined SUPPORT_UTF8)
+#define SUPPORT_UTF8 1
+#endif
+
+/* We do not support both EBCDIC and UTF-8/16 at the same time. The "configure"
+script prevents both being selected, but not everybody uses "configure". */
+
+#if defined EBCDIC && defined SUPPORT_UTF
+#error The use of both EBCDIC and SUPPORT_UTF8/16 is not supported.
+#endif
+
+/* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
+inline, and there are *still* stupid compilers about that don't like indented
+pre-processor statements, or at least there were when I first wrote this. After
+all, it had only been about 10 years then...
+
+It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
+be absolutely sure we get our version. */
+
+#undef DPRINTF
+#ifdef PCRE_DEBUG
+#define DPRINTF(p) printf p
+#else
+#define DPRINTF(p) /* Nothing */
+#endif
+
+
+/* Standard C headers plus the external interface definition. The only time
+setjmp and stdarg are used is when NO_RECURSE is set. */
+
+#include <ctype.h>
+#include <limits.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* When compiling a DLL for Windows, the exported symbols have to be declared
+using some MS magic. I found some useful information on this web page:
+http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
+information there, using __declspec(dllexport) without "extern" we have a
+definition; with "extern" we have a declaration. The settings here override the
+setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
+which is all that is needed for applications (they just import the symbols). We
+use:
+
+  PCRE_EXP_DECL       for declarations
+  PCRE_EXP_DEFN       for definitions of exported functions
+  PCRE_EXP_DATA_DEFN  for definitions of exported variables
+
+The reason for the two DEFN macros is that in non-Windows environments, one
+does not want to have "extern" before variable definitions because it leads to
+compiler warnings. So we distinguish between functions and variables. In
+Windows, the two should always be the same.
+
+The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
+which is an application, but needs to import this file in order to "peek" at
+internals, can #include pcre.h first to get an application's-eye view.
+
+In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
+special-purpose environments) might want to stick other stuff in front of
+exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
+PCRE_EXP_DATA_DEFN only if they are not already set. */
+
+#ifndef PCRE_EXP_DECL
+#  ifdef _WIN32
+#    ifndef PCRE_STATIC
+#      define PCRE_EXP_DECL       extern __declspec(dllexport)
+#      define PCRE_EXP_DEFN       __declspec(dllexport)
+#      define PCRE_EXP_DATA_DEFN  __declspec(dllexport)
+#    else
+#      define PCRE_EXP_DECL       extern
+#      define PCRE_EXP_DEFN
+#      define PCRE_EXP_DATA_DEFN
+#    endif
+#  else
+#    ifdef __cplusplus
+#      define PCRE_EXP_DECL       extern "C"
+#    else
+#      define PCRE_EXP_DECL       extern
+#    endif
+#    ifndef PCRE_EXP_DEFN
+#      define PCRE_EXP_DEFN       PCRE_EXP_DECL
+#    endif
+#    ifndef PCRE_EXP_DATA_DEFN
+#      define PCRE_EXP_DATA_DEFN
+#    endif
+#  endif
+#endif
+
+/* When compiling with the MSVC compiler, it is sometimes necessary to include
+a "calling convention" before exported function names. (This is secondhand
+information; I know nothing about MSVC myself). For example, something like
+
+  void __cdecl function(....)
+
+might be needed. In order so make this easy, all the exported functions have
+PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
+set, we ensure here that it has no effect. */
+
+#ifndef PCRE_CALL_CONVENTION
+#define PCRE_CALL_CONVENTION
+#endif
+
+/* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
+cannot determine these outside the compilation (e.g. by running a program as
+part of "configure") because PCRE is often cross-compiled for use on other
+systems. Instead we make use of the maximum sizes that are available at
+preprocessor time in standard C environments. */
+
+typedef unsigned char pcre_uint8;
+
+#if USHRT_MAX == 65535
+  typedef unsigned short pcre_uint16;
+  typedef short pcre_int16;
+#elif UINT_MAX == 65535
+  typedef unsigned int pcre_uint16;
+  typedef int pcre_int16;
+#else
+  #error Cannot determine a type for 16-bit unsigned integers
+#endif
+
+#if UINT_MAX == 4294967295
+  typedef unsigned int pcre_uint32;
+  typedef int pcre_int32;
+#elif ULONG_MAX == 4294967295
+  typedef unsigned long int pcre_uint32;
+  typedef long int pcre_int32;
+#else
+  #error Cannot determine a type for 32-bit unsigned integers
+#endif
+
+/* When checking for integer overflow in pcre_compile(), we need to handle
+large integers. If a 64-bit integer type is available, we can use that.
+Otherwise we have to cast to double, which of course requires floating point
+arithmetic. Handle this by defining a macro for the appropriate type. If
+stdint.h is available, include it; it may define INT64_MAX. Systems that do not
+have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
+by "configure". */
+
+#if HAVE_STDINT_H
+#include <stdint.h>
+#elif HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+
+#if defined INT64_MAX || defined int64_t
+#define INT64_OR_DOUBLE int64_t
+#else
+#define INT64_OR_DOUBLE double
+#endif
+
+/* All character handling must be done as unsigned characters. Otherwise there
+are problems with top-bit-set characters and functions such as isspace().
+However, we leave the interface to the outside world as char * or short *,
+because that should make things easier for callers. This character type is
+called pcre_uchar.
+
+The IN_UCHARS macro multiply its argument with the byte size of the current
+pcre_uchar type. Useful for memcpy and such operations, whose require the
+byte size of their input/output buffers.
+
+The MAX_255 macro checks whether its pcre_uchar input is less than 256.
+
+The TABLE_GET macro is designed for accessing elements of tables whose contain
+exactly 256 items. When the character is able to contain more than 256
+items, some check is needed before accessing these tables.
+*/
+
+#ifdef COMPILE_PCRE8
+
+typedef unsigned char pcre_uchar;
+#define IN_UCHARS(x) (x)
+#define MAX_255(c) 1
+#define TABLE_GET(c, table, default) ((table)[c])
+
+#else
+
+#ifdef COMPILE_PCRE16
+#if USHRT_MAX != 65535
+/* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
+pcre.h(.in) and disable (comment out) this message. */
+#error Warning: PCRE_UCHAR16 is not a 16 bit data type.
+#endif
+
+typedef pcre_uint16 pcre_uchar;
+#define IN_UCHARS(x) ((x) << 1)
+#define MAX_255(c) ((c) <= 255u)
+#define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
+
+#else
+#error Unsupported compiling mode
+#endif /* COMPILE_PCRE16 */
+
+#endif /* COMPILE_PCRE8 */
+
+/* This is an unsigned int value that no character can ever have. UTF-8
+characters only go up to 0x7fffffff (though Unicode doesn't go beyond
+0x0010ffff). */
+
+#define NOTACHAR 0xffffffff
+
+/* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
+"any" and "anycrlf" at present). The following macros are used to package up
+testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
+modules to indicate in which datablock the parameters exist, and what the
+start/end of string field names are. */
+
+#define NLTYPE_FIXED    0     /* Newline is a fixed length string */
+#define NLTYPE_ANY      1     /* Newline is any Unicode line ending */
+#define NLTYPE_ANYCRLF  2     /* Newline is CR, LF, or CRLF */
+
+/* This macro checks for a newline at the given position */
+
+#define IS_NEWLINE(p) \
+  ((NLBLOCK->nltype != NLTYPE_FIXED)? \
+    ((p) < NLBLOCK->PSEND && \
+     PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
+       &(NLBLOCK->nllen), utf)) \
+    : \
+    ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
+     (p)[0] == NLBLOCK->nl[0] && \
+     (NLBLOCK->nllen == 1 || (p)[1] == NLBLOCK->nl[1]) \
+    ) \
+  )
+
+/* This macro checks for a newline immediately preceding the given position */
+
+#define WAS_NEWLINE(p) \
+  ((NLBLOCK->nltype != NLTYPE_FIXED)? \
+    ((p) > NLBLOCK->PSSTART && \
+     PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
+       &(NLBLOCK->nllen), utf)) \
+    : \
+    ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
+     (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
+     (NLBLOCK->nllen == 1 || (p)[-NLBLOCK->nllen+1] == NLBLOCK->nl[1]) \
+    ) \
+  )
+
+/* When PCRE is compiled as a C++ library, the subject pointer can be replaced
+with a custom type. This makes it possible, for example, to allow pcre_exec()
+to process subject strings that are discontinuous by using a smart pointer
+class. It must always be possible to inspect all of the subject string in
+pcre_exec() because of the way it backtracks. Two macros are required in the
+normal case, for sign-unspecified and unsigned char pointers. The former is
+used for the external interface and appears in pcre.h, which is why its name
+must begin with PCRE_. */
+
+#ifdef CUSTOM_SUBJECT_PTR
+#define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
+#else
+#define PCRE_PUCHAR const pcre_uchar *
+#endif
+
+/* Include the public PCRE header and the definitions of UCP character property
+values. */
+
+#include "pcre.h"
+#include "ucp.h"
+
+/* When compiling for use with the Virtual Pascal compiler, these functions
+need to have their names changed. PCRE must be compiled with the -DVPCOMPAT
+option on the command line. */
+
+#ifdef VPCOMPAT
+#define strlen(s)        _strlen(s)
+#define strncmp(s1,s2,m) _strncmp(s1,s2,m)
+#define memcmp(s,c,n)    _memcmp(s,c,n)
+#define memcpy(d,s,n)    _memcpy(d,s,n)
+#define memmove(d,s,n)   _memmove(d,s,n)
+#define memset(s,c,n)    _memset(s,c,n)
+#else  /* VPCOMPAT */
+
+/* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
+define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
+is set. Otherwise, include an emulating function for those systems that have
+neither (there some non-Unix environments where this is the case). */
+
+#ifndef HAVE_MEMMOVE
+#undef  memmove        /* some systems may have a macro */
+#ifdef HAVE_BCOPY
+#define memmove(a, b, c) bcopy(b, a, c)
+#else  /* HAVE_BCOPY */
+static void *
+pcre_memmove(void *d, const void *s, size_t n)
+{
+size_t i;
+unsigned char *dest = (unsigned char *)d;
+const unsigned char *src = (const unsigned char *)s;
+if (dest > src)
+  {
+  dest += n;
+  src += n;
+  for (i = 0; i < n; ++i) *(--dest) = *(--src);
+  return (void *)dest;
+  }
+else
+  {
+  for (i = 0; i < n; ++i) *dest++ = *src++;
+  return (void *)(dest - n);
+  }
+}
+#define memmove(a, b, c) pcre_memmove(a, b, c)
+#endif   /* not HAVE_BCOPY */
+#endif   /* not HAVE_MEMMOVE */
+#endif   /* not VPCOMPAT */
+
+
+/* PCRE keeps offsets in its compiled code as 2-byte quantities (always stored
+in big-endian order) by default. These are used, for example, to link from the
+start of a subpattern to its alternatives and its end. The use of 2 bytes per
+offset limits the size of the compiled regex to around 64K, which is big enough
+for almost everybody. However, I received a request for an even bigger limit.
+For this reason, and also to make the code easier to maintain, the storing and
+loading of offsets from the byte string is now handled by the macros that are
+defined here.
+
+The macros are controlled by the value of LINK_SIZE. This defaults to 2 in
+the config.h file, but can be overridden by using -D on the command line. This
+is automated on Unix systems via the "configure" command. */
+
+#ifdef COMPILE_PCRE8
+
+#if LINK_SIZE == 2
+
+#define PUT(a,n,d)   \
+  (a[n] = (d) >> 8), \
+  (a[(n)+1] = (d) & 255)
+
+#define GET(a,n) \
+  (((a)[n] << 8) | (a)[(n)+1])
+
+#define MAX_PATTERN_SIZE (1 << 16)
+
+
+#elif LINK_SIZE == 3
+
+#define PUT(a,n,d)       \
+  (a[n] = (d) >> 16),    \
+  (a[(n)+1] = (d) >> 8), \
+  (a[(n)+2] = (d) & 255)
+
+#define GET(a,n) \
+  (((a)[n] << 16) | ((a)[(n)+1] << 8) | (a)[(n)+2])
+
+#define MAX_PATTERN_SIZE (1 << 24)
+
+
+#elif LINK_SIZE == 4
+
+#define PUT(a,n,d)        \
+  (a[n] = (d) >> 24),     \
+  (a[(n)+1] = (d) >> 16), \
+  (a[(n)+2] = (d) >> 8),  \
+  (a[(n)+3] = (d) & 255)
+
+#define GET(a,n) \
+  (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
+
+/* Keep it positive */
+#define MAX_PATTERN_SIZE (1 << 30)
+
+#else
+#error LINK_SIZE must be either 2, 3, or 4
+#endif
+
+#else /* COMPILE_PCRE8 */
+
+#ifdef COMPILE_PCRE16
+
+#if LINK_SIZE == 2
+
+#undef LINK_SIZE
+#define LINK_SIZE 1
+
+#define PUT(a,n,d)   \
+  (a[n] = (d))
+
+#define GET(a,n) \
+  (a[n])
+
+#define MAX_PATTERN_SIZE (1 << 16)
+
+#elif LINK_SIZE == 3 || LINK_SIZE == 4
+
+#undef LINK_SIZE
+#define LINK_SIZE 2
+
+#define PUT(a,n,d)   \
+  (a[n] = (d) >> 16), \
+  (a[(n)+1] = (d) & 65535)
+
+#define GET(a,n) \
+  (((a)[n] << 16) | (a)[(n)+1])
+
+/* Keep it positive */
+#define MAX_PATTERN_SIZE (1 << 30)
+
+#else
+#error LINK_SIZE must be either 2, 3, or 4
+#endif
+
+#else
+#error Unsupported compiling mode
+#endif /* COMPILE_PCRE16 */
+
+#endif /* COMPILE_PCRE8 */
+
+/* Convenience macro defined in terms of the others */
+
+#define PUTINC(a,n,d)   PUT(a,n,d), a += LINK_SIZE
+
+
+/* PCRE uses some other 2-byte quantities that do not change when the size of
+offsets changes. There are used for repeat counts and for other things such as
+capturing parenthesis numbers in back references. */
+
+#ifdef COMPILE_PCRE8
+
+#define IMM2_SIZE 2
+
+#define PUT2(a,n,d)   \
+  a[n] = (d) >> 8; \
+  a[(n)+1] = (d) & 255
+
+#define GET2(a,n) \
+  (((a)[n] << 8) | (a)[(n)+1])
+
+#else /* COMPILE_PCRE8 */
+
+#ifdef COMPILE_PCRE16
+
+#define IMM2_SIZE 1
+
+#define PUT2(a,n,d)   \
+   a[n] = d
+
+#define GET2(a,n) \
+   a[n]
+
+#else
+#error Unsupported compiling mode
+#endif /* COMPILE_PCRE16 */
+
+#endif /* COMPILE_PCRE8 */
+
+#define PUT2INC(a,n,d)  PUT2(a,n,d), a += IMM2_SIZE
+
+/* The maximum length of a MARK name is currently one data unit; it may be
+changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
+
+#define MAX_MARK ((1 << (sizeof(pcre_uchar)*8)) - 1)
+
+/* When UTF encoding is being used, a character is no longer just a single
+character. The macros for character handling generate simple sequences when
+used in character-mode, and more complicated ones for UTF characters.
+GETCHARLENTEST and other macros are not used when UTF is not supported,
+so they are not defined. To make sure they can never even appear when
+UTF support is omitted, we don't even define them. */
+
+#ifndef SUPPORT_UTF
+
+/* #define MAX_VALUE_FOR_SINGLE_CHAR */
+/* #define HAS_EXTRALEN(c) */
+/* #define GET_EXTRALEN(c) */
+/* #define NOT_FIRSTCHAR(c) */
+#define GETCHAR(c, eptr) c = *eptr;
+#define GETCHARTEST(c, eptr) c = *eptr;
+#define GETCHARINC(c, eptr) c = *eptr++;
+#define GETCHARINCTEST(c, eptr) c = *eptr++;
+#define GETCHARLEN(c, eptr, len) c = *eptr;
+/* #define GETCHARLENTEST(c, eptr, len) */
+/* #define BACKCHAR(eptr) */
+/* #define FORWARDCHAR(eptr) */
+/* #define ACROSSCHAR(condition, eptr, action) */
+
+#else   /* SUPPORT_UTF */
+
+#ifdef COMPILE_PCRE8
+
+/* These macros were originally written in the form of loops that used data
+from the tables whose names start with PRIV(utf8_table). They were rewritten by
+a user so as not to use loops, because in some environments this gives a
+significant performance advantage, and it seems never to do any harm. */
+
+/* Tells the biggest code point which can be encoded as a single character. */
+
+#define MAX_VALUE_FOR_SINGLE_CHAR 127
+
+/* Tests whether the code point needs extra characters to decode. */
+
+#define HAS_EXTRALEN(c) ((c) >= 0xc0)
+
+/* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
+Otherwise it has an undefined behaviour. */
+
+#define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
+
+/* Returns TRUE, if the given character is not the first character
+of a UTF sequence. */
+
+#define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
+
+/* Base macro to pick up the remaining bytes of a UTF-8 character, not
+advancing the pointer. */
+
+#define GETUTF8(c, eptr) \
+    { \
+    if ((c & 0x20) == 0) \
+      c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
+    else if ((c & 0x10) == 0) \
+      c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
+    else if ((c & 0x08) == 0) \
+      c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
+      ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
+    else if ((c & 0x04) == 0) \
+      c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
+          ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
+          (eptr[4] & 0x3f); \
+    else \
+      c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
+          ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
+          ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
+    }
+
+/* Get the next UTF-8 character, not advancing the pointer. This is called when
+we know we are in UTF-8 mode. */
+
+#define GETCHAR(c, eptr) \
+  c = *eptr; \
+  if (c >= 0xc0) GETUTF8(c, eptr);
+
+/* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
+pointer. */
+
+#define GETCHARTEST(c, eptr) \
+  c = *eptr; \
+  if (utf && c >= 0xc0) GETUTF8(c, eptr);
+
+/* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
+the pointer. */
+
+#define GETUTF8INC(c, eptr) \
+    { \
+    if ((c & 0x20) == 0) \
+      c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
+    else if ((c & 0x10) == 0) \
+      { \
+      c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
+      eptr += 2; \
+      } \
+    else if ((c & 0x08) == 0) \
+      { \
+      c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
+          ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
+      eptr += 3; \
+      } \
+    else if ((c & 0x04) == 0) \
+      { \
+      c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
+          ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
+          (eptr[3] & 0x3f); \
+      eptr += 4; \
+      } \
+    else \
+      { \
+      c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
+          ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
+          ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
+      eptr += 5; \
+      } \
+    }
+
+/* Get the next UTF-8 character, advancing the pointer. This is called when we
+know we are in UTF-8 mode. */
+
+#define GETCHARINC(c, eptr) \
+  c = *eptr++; \
+  if (c >= 0xc0) GETUTF8INC(c, eptr);
+
+/* Get the next character, testing for UTF-8 mode, and advancing the pointer.
+This is called when we don't know if we are in UTF-8 mode. */
+
+#define GETCHARINCTEST(c, eptr) \
+  c = *eptr++; \
+  if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
+
+/* Base macro to pick up the remaining bytes of a UTF-8 character, not
+advancing the pointer, incrementing the length. */
+
+#define GETUTF8LEN(c, eptr, len) \
+    { \
+    if ((c & 0x20) == 0) \
+      { \
+      c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
+      len++; \
+      } \
+    else if ((c & 0x10)  == 0) \
+      { \
+      c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
+      len += 2; \
+      } \
+    else if ((c & 0x08)  == 0) \
+      {\
+      c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
+          ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
+      len += 3; \
+      } \
+    else if ((c & 0x04)  == 0) \
+      { \
+      c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
+          ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
+          (eptr[4] & 0x3f); \
+      len += 4; \
+      } \
+    else \
+      {\
+      c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
+          ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
+          ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
+      len += 5; \
+      } \
+    }
+
+/* Get the next UTF-8 character, not advancing the pointer, incrementing length
+if there are extra bytes. This is called when we know we are in UTF-8 mode. */
+
+#define GETCHARLEN(c, eptr, len) \
+  c = *eptr; \
+  if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
+
+/* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
+pointer, incrementing length if there are extra bytes. This is called when we
+do not know if we are in UTF-8 mode. */
+
+#define GETCHARLENTEST(c, eptr, len) \
+  c = *eptr; \
+  if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
+
+/* If the pointer is not at the start of a character, move it back until
+it is. This is called only in UTF-8 mode - we don't put a test within the macro
+because almost all calls are already within a block of UTF-8 only code. */
+
+#define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
+
+/* Same as above, just in the other direction. */
+#define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
+
+/* Same as above, but it allows a fully customizable form. */
+#define ACROSSCHAR(condition, eptr, action) \
+  while((condition) && ((eptr) & 0xc0) == 0x80) action
+
+#else /* COMPILE_PCRE8 */
+
+#ifdef COMPILE_PCRE16
+
+/* Tells the biggest code point which can be encoded as a single character. */
+
+#define MAX_VALUE_FOR_SINGLE_CHAR 65535
+
+/* Tests whether the code point needs extra characters to decode. */
+
+#define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
+
+/* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
+Otherwise it has an undefined behaviour. */
+
+#define GET_EXTRALEN(c) 1
+
+/* Returns TRUE, if the given character is not the first character
+of a UTF sequence. */
+
+#define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
+
+/* Base macro to pick up the low surrogate of a UTF-16 character, not
+advancing the pointer. */
+
+#define GETUTF16(c, eptr) \
+   { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
+
+/* Get the next UTF-16 character, not advancing the pointer. This is called when
+we know we are in UTF-16 mode. */
+
+#define GETCHAR(c, eptr) \
+  c = *eptr; \
+  if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
+
+/* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
+pointer. */
+
+#define GETCHARTEST(c, eptr) \
+  c = *eptr; \
+  if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
+
+/* Base macro to pick up the low surrogate of a UTF-16 character, advancing
+the pointer. */
+
+#define GETUTF16INC(c, eptr) \
+   { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
+
+/* Get the next UTF-16 character, advancing the pointer. This is called when we
+know we are in UTF-16 mode. */
+
+#define GETCHARINC(c, eptr) \
+  c = *eptr++; \
+  if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
+
+/* Get the next character, testing for UTF-16 mode, and advancing the pointer.
+This is called when we don't know if we are in UTF-16 mode. */
+
+#define GETCHARINCTEST(c, eptr) \
+  c = *eptr++; \
+  if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
+
+/* Base macro to pick up the low surrogate of a UTF-16 character, not
+advancing the pointer, incrementing the length. */
+
+#define GETUTF16LEN(c, eptr, len) \
+   { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
+
+/* Get the next UTF-16 character, not advancing the pointer, incrementing
+length if there is a low surrogate. This is called when we know we are in
+UTF-16 mode. */
+
+#define GETCHARLEN(c, eptr, len) \
+  c = *eptr; \
+  if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
+
+/* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
+pointer, incrementing length if there is a low surrogate. This is called when
+we do not know if we are in UTF-16 mode. */
+
+#define GETCHARLENTEST(c, eptr, len) \
+  c = *eptr; \
+  if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
+
+/* If the pointer is not at the start of a character, move it back until
+it is. This is called only in UTF-16 mode - we don't put a test within the
+macro because almost all calls are already within a block of UTF-16 only
+code. */
+
+#define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
+
+/* Same as above, just in the other direction. */
+#define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
+
+/* Same as above, but it allows a fully customizable form. */
+#define ACROSSCHAR(condition, eptr, action) \
+  if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
+
+#endif
+
+#endif /* COMPILE_PCRE8 */
+
+#endif  /* SUPPORT_UTF */
+
+
+/* In case there is no definition of offsetof() provided - though any proper
+Standard C system should have one. */
+
+#ifndef offsetof
+#define offsetof(p_type,field) ((size_t)&(((p_type *)0)->field))
+#endif
+
+
+/* Private flags containing information about the compiled regex. They used to
+live at the top end of the options word, but that got almost full, so now they
+are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
+the restrictions on partial matching have been lifted. It remains for backwards
+compatibility. */
+
+#ifdef COMPILE_PCRE8
+#define PCRE_MODE          0x0001  /* compiled in 8 bit mode */
+#endif
+#ifdef COMPILE_PCRE16
+#define PCRE_MODE          0x0002  /* compiled in 16 bit mode */
+#endif
+#define PCRE_FIRSTSET      0x0010  /* first_char is set */
+#define PCRE_FCH_CASELESS  0x0020  /* caseless first char */
+#define PCRE_REQCHSET      0x0040  /* req_byte is set */
+#define PCRE_RCH_CASELESS  0x0080  /* caseless requested char */
+#define PCRE_STARTLINE     0x0100  /* start after \n for multiline */
+#define PCRE_NOPARTIAL     0x0200  /* can't use partial with this regex */
+#define PCRE_JCHANGED      0x0400  /* j option used in regex */
+#define PCRE_HASCRORLF     0x0800  /* explicit \r or \n in pattern */
+#define PCRE_HASTHEN       0x1000  /* pattern contains (*THEN) */
+
+/* Flags for the "extra" block produced by pcre_study(). */
+
+#define PCRE_STUDY_MAPPED  0x0001  /* a map of starting chars exists */
+#define PCRE_STUDY_MINLEN  0x0002  /* a minimum length field exists */
+
+/* Masks for identifying the public options that are permitted at compile
+time, run time, or study time, respectively. */
+
+#define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
+                           PCRE_NEWLINE_ANYCRLF)
+
+#define PUBLIC_COMPILE_OPTIONS \
+  (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
+   PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
+   PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
+   PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
+   PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
+
+#define PUBLIC_EXEC_OPTIONS \
+  (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
+   PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
+   PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
+
+#define PUBLIC_DFA_EXEC_OPTIONS \
+  (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
+   PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
+   PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
+   PCRE_NO_START_OPTIMIZE)
+
+#define PUBLIC_STUDY_OPTIONS \
+   (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
+    PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE)
+
+/* Magic number to provide a small check against being handed junk. */
+
+#define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */
+
+/* This variable is used to detect a loaded regular expression
+in different endianness. */
+
+#define REVERSED_MAGIC_NUMBER  0x45524350UL   /* 'ERCP' */
+
+/* Negative values for the firstchar and reqchar variables */
+
+#define REQ_UNSET (-2)
+#define REQ_NONE  (-1)
+
+/* The maximum remaining length of subject we are prepared to search for a
+req_byte match. */
+
+#define REQ_BYTE_MAX 1000
+
+/* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
+environments where these macros are defined elsewhere. Unfortunately, there
+is no way to do the same for the typedef. */
+
+typedef int BOOL;
+
+#ifndef FALSE
+#define FALSE   0
+#define TRUE    1
+#endif
+
+/* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
+character constants like '*' because the compiler would emit their EBCDIC code,
+which is different from their ASCII/UTF-8 code. Instead we define macros for
+the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
+is enabled. When UTF-8 support is not enabled, the definitions use character
+literals. Both character and string versions of each character are needed, and
+there are some longer strings as well.
+
+This means that, on EBCDIC platforms, the PCRE library can handle either
+EBCDIC, or UTF-8, but not both. To support both in the same compiled library
+would need different lookups depending on whether PCRE_UTF8 was set or not.
+This would make it impossible to use characters in switch/case statements,
+which would reduce performance. For a theoretical use (which nobody has asked
+for) in a minority area (EBCDIC platforms), this is not sensible. Any
+application that did need both could compile two versions of the library, using
+macros to give the functions distinct names. */
+
+#ifndef SUPPORT_UTF
+
+/* UTF-8 support is not enabled; use the platform-dependent character literals
+so that PCRE works on both ASCII and EBCDIC platforms, in non-UTF-mode only. */
+
+#define CHAR_HT                     '\t'
+#define CHAR_VT                     '\v'
+#define CHAR_FF                     '\f'
+#define CHAR_CR                     '\r'
+#define CHAR_NL                     '\n'
+#define CHAR_BS                     '\b'
+#define CHAR_BEL                    '\a'
+#ifdef EBCDIC
+#define CHAR_ESC                    '\047'
+#define CHAR_DEL                    '\007'
+#else
+#define CHAR_ESC                    '\033'
+#define CHAR_DEL                    '\177'
+#endif
+
+#define CHAR_SPACE                  ' '
+#define CHAR_EXCLAMATION_MARK       '!'
+#define CHAR_QUOTATION_MARK         '"'
+#define CHAR_NUMBER_SIGN            '#'
+#define CHAR_DOLLAR_SIGN            '$'
+#define CHAR_PERCENT_SIGN           '%'
+#define CHAR_AMPERSAND              '&'
+#define CHAR_APOSTROPHE             '\''
+#define CHAR_LEFT_PARENTHESIS       '('
+#define CHAR_RIGHT_PARENTHESIS      ')'
+#define CHAR_ASTERISK               '*'
+#define CHAR_PLUS                   '+'
+#define CHAR_COMMA                  ','
+#define CHAR_MINUS                  '-'
+#define CHAR_DOT                    '.'
+#define CHAR_SLASH                  '/'
+#define CHAR_0                      '0'
+#define CHAR_1                      '1'
+#define CHAR_2                      '2'
+#define CHAR_3                      '3'
+#define CHAR_4                      '4'
+#define CHAR_5                      '5'
+#define CHAR_6                      '6'
+#define CHAR_7                      '7'
+#define CHAR_8                      '8'
+#define CHAR_9                      '9'
+#define CHAR_COLON                  ':'
+#define CHAR_SEMICOLON              ';'
+#define CHAR_LESS_THAN_SIGN         '<'
+#define CHAR_EQUALS_SIGN            '='
+#define CHAR_GREATER_THAN_SIGN      '>'
+#define CHAR_QUESTION_MARK          '?'
+#define CHAR_COMMERCIAL_AT          '@'
+#define CHAR_A                      'A'
+#define CHAR_B                      'B'
+#define CHAR_C                      'C'
+#define CHAR_D                      'D'
+#define CHAR_E                      'E'
+#define CHAR_F                      'F'
+#define CHAR_G                      'G'
+#define CHAR_H                      'H'
+#define CHAR_I                      'I'
+#define CHAR_J                      'J'
+#define CHAR_K                      'K'
+#define CHAR_L                      'L'
+#define CHAR_M                      'M'
+#define CHAR_N                      'N'
+#define CHAR_O                      'O'
+#define CHAR_P                      'P'
+#define CHAR_Q                      'Q'
+#define CHAR_R                      'R'
+#define CHAR_S                      'S'
+#define CHAR_T                      'T'
+#define CHAR_U                      'U'
+#define CHAR_V                      'V'
+#define CHAR_W                      'W'
+#define CHAR_X                      'X'
+#define CHAR_Y                      'Y'
+#define CHAR_Z                      'Z'
+#define CHAR_LEFT_SQUARE_BRACKET    '['
+#define CHAR_BACKSLASH              '\\'
+#define CHAR_RIGHT_SQUARE_BRACKET   ']'
+#define CHAR_CIRCUMFLEX_ACCENT      '^'
+#define CHAR_UNDERSCORE             '_'
+#define CHAR_GRAVE_ACCENT           '`'
+#define CHAR_a                      'a'
+#define CHAR_b                      'b'
+#define CHAR_c                      'c'
+#define CHAR_d                      'd'
+#define CHAR_e                      'e'
+#define CHAR_f                      'f'
+#define CHAR_g                      'g'
+#define CHAR_h                      'h'
+#define CHAR_i                      'i'
+#define CHAR_j                      'j'
+#define CHAR_k                      'k'
+#define CHAR_l                      'l'
+#define CHAR_m                      'm'
+#define CHAR_n                      'n'
+#define CHAR_o                      'o'
+#define CHAR_p                      'p'
+#define CHAR_q                      'q'
+#define CHAR_r                      'r'
+#define CHAR_s                      's'
+#define CHAR_t                      't'
+#define CHAR_u                      'u'
+#define CHAR_v                      'v'
+#define CHAR_w                      'w'
+#define CHAR_x                      'x'
+#define CHAR_y                      'y'
+#define CHAR_z                      'z'
+#define CHAR_LEFT_CURLY_BRACKET     '{'
+#define CHAR_VERTICAL_LINE          '|'
+#define CHAR_RIGHT_CURLY_BRACKET    '}'
+#define CHAR_TILDE                  '~'
+
+#define STR_HT                      "\t"
+#define STR_VT                      "\v"
+#define STR_FF                      "\f"
+#define STR_CR                      "\r"
+#define STR_NL                      "\n"
+#define STR_BS                      "\b"
+#define STR_BEL                     "\a"
+#ifdef EBCDIC
+#define STR_ESC                     "\047"
+#define STR_DEL                     "\007"
+#else
+#define STR_ESC                     "\033"
+#define STR_DEL                     "\177"
+#endif
+
+#define STR_SPACE                   " "
+#define STR_EXCLAMATION_MARK        "!"
+#define STR_QUOTATION_MARK          "\""
+#define STR_NUMBER_SIGN             "#"
+#define STR_DOLLAR_SIGN             "$"
+#define STR_PERCENT_SIGN            "%"
+#define STR_AMPERSAND               "&"
+#define STR_APOSTROPHE              "'"
+#define STR_LEFT_PARENTHESIS        "("
+#define STR_RIGHT_PARENTHESIS       ")"
+#define STR_ASTERISK                "*"
+#define STR_PLUS                    "+"
+#define STR_COMMA                   ","
+#define STR_MINUS                   "-"
+#define STR_DOT                     "."
+#define STR_SLASH                   "/"
+#define STR_0                       "0"
+#define STR_1                       "1"
+#define STR_2                       "2"
+#define STR_3                       "3"
+#define STR_4                       "4"
+#define STR_5                       "5"
+#define STR_6                       "6"
+#define STR_7                       "7"
+#define STR_8                       "8"
+#define STR_9                       "9"
+#define STR_COLON                   ":"
+#define STR_SEMICOLON               ";"
+#define STR_LESS_THAN_SIGN          "<"
+#define STR_EQUALS_SIGN             "="
+#define STR_GREATER_THAN_SIGN       ">"
+#define STR_QUESTION_MARK           "?"
+#define STR_COMMERCIAL_AT           "@"
+#define STR_A                       "A"
+#define STR_B                       "B"
+#define STR_C                       "C"
+#define STR_D                       "D"
+#define STR_E                       "E"
+#define STR_F                       "F"
+#define STR_G                       "G"
+#define STR_H                       "H"
+#define STR_I                       "I"
+#define STR_J                       "J"
+#define STR_K                       "K"
+#define STR_L                       "L"
+#define STR_M                       "M"
+#define STR_N                       "N"
+#define STR_O                       "O"
+#define STR_P                       "P"
+#define STR_Q                       "Q"
+#define STR_R                       "R"
+#define STR_S                       "S"
+#define STR_T                       "T"
+#define STR_U                       "U"
+#define STR_V                       "V"
+#define STR_W                       "W"
+#define STR_X                       "X"
+#define STR_Y                       "Y"
+#define STR_Z                       "Z"
+#define STR_LEFT_SQUARE_BRACKET     "["
+#define STR_BACKSLASH               "\\"
+#define STR_RIGHT_SQUARE_BRACKET    "]"
+#define STR_CIRCUMFLEX_ACCENT       "^"
+#define STR_UNDERSCORE              "_"
+#define STR_GRAVE_ACCENT            "`"
+#define STR_a                       "a"
+#define STR_b                       "b"
+#define STR_c                       "c"
+#define STR_d                       "d"
+#define STR_e                       "e"
+#define STR_f                       "f"
+#define STR_g                       "g"
+#define STR_h                       "h"
+#define STR_i                       "i"
+#define STR_j                       "j"
+#define STR_k                       "k"
+#define STR_l                       "l"
+#define STR_m                       "m"
+#define STR_n                       "n"
+#define STR_o                       "o"
+#define STR_p                       "p"
+#define STR_q                       "q"
+#define STR_r                       "r"
+#define STR_s                       "s"
+#define STR_t                       "t"
+#define STR_u                       "u"
+#define STR_v                       "v"
+#define STR_w                       "w"
+#define STR_x                       "x"
+#define STR_y                       "y"
+#define STR_z                       "z"
+#define STR_LEFT_CURLY_BRACKET      "{"
+#define STR_VERTICAL_LINE           "|"
+#define STR_RIGHT_CURLY_BRACKET     "}"
+#define STR_TILDE                   "~"
+
+#define STRING_ACCEPT0              "ACCEPT\0"
+#define STRING_COMMIT0              "COMMIT\0"
+#define STRING_F0                   "F\0"
+#define STRING_FAIL0                "FAIL\0"
+#define STRING_MARK0                "MARK\0"
+#define STRING_PRUNE0               "PRUNE\0"
+#define STRING_SKIP0                "SKIP\0"
+#define STRING_THEN                 "THEN"
+
+#define STRING_alpha0               "alpha\0"
+#define STRING_lower0               "lower\0"
+#define STRING_upper0               "upper\0"
+#define STRING_alnum0               "alnum\0"
+#define STRING_ascii0               "ascii\0"
+#define STRING_blank0               "blank\0"
+#define STRING_cntrl0               "cntrl\0"
+#define STRING_digit0               "digit\0"
+#define STRING_graph0               "graph\0"
+#define STRING_print0               "print\0"
+#define STRING_punct0               "punct\0"
+#define STRING_space0               "space\0"
+#define STRING_word0                "word\0"
+#define STRING_xdigit               "xdigit"
+
+#define STRING_DEFINE               "DEFINE"
+
+#define STRING_CR_RIGHTPAR             "CR)"
+#define STRING_LF_RIGHTPAR             "LF)"
+#define STRING_CRLF_RIGHTPAR           "CRLF)"
+#define STRING_ANY_RIGHTPAR            "ANY)"
+#define STRING_ANYCRLF_RIGHTPAR        "ANYCRLF)"
+#define STRING_BSR_ANYCRLF_RIGHTPAR    "BSR_ANYCRLF)"
+#define STRING_BSR_UNICODE_RIGHTPAR    "BSR_UNICODE)"
+#ifdef COMPILE_PCRE8
+#define STRING_UTF_RIGHTPAR            "UTF8)"
+#endif
+#ifdef COMPILE_PCRE16
+#define STRING_UTF_RIGHTPAR            "UTF16)"
+#endif
+#define STRING_UCP_RIGHTPAR            "UCP)"
+#define STRING_NO_START_OPT_RIGHTPAR   "NO_START_OPT)"
+
+#else  /* SUPPORT_UTF */
+
+/* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
+works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
+only. */
+
+#define CHAR_HT                     '\011'
+#define CHAR_VT                     '\013'
+#define CHAR_FF                     '\014'
+#define CHAR_CR                     '\015'
+#define CHAR_NL                     '\012'
+#define CHAR_BS                     '\010'
+#define CHAR_BEL                    '\007'
+#define CHAR_ESC                    '\033'
+#define CHAR_DEL                    '\177'
+
+#define CHAR_SPACE                  '\040'
+#define CHAR_EXCLAMATION_MARK       '\041'
+#define CHAR_QUOTATION_MARK         '\042'
+#define CHAR_NUMBER_SIGN            '\043'
+#define CHAR_DOLLAR_SIGN            '\044'
+#define CHAR_PERCENT_SIGN           '\045'
+#define CHAR_AMPERSAND              '\046'
+#define CHAR_APOSTROPHE             '\047'
+#define CHAR_LEFT_PARENTHESIS       '\050'
+#define CHAR_RIGHT_PARENTHESIS      '\051'
+#define CHAR_ASTERISK               '\052'
+#define CHAR_PLUS                   '\053'
+#define CHAR_COMMA                  '\054'
+#define CHAR_MINUS                  '\055'
+#define CHAR_DOT                    '\056'
+#define CHAR_SLASH                  '\057'
+#define CHAR_0                      '\060'
+#define CHAR_1                      '\061'
+#define CHAR_2                      '\062'
+#define CHAR_3                      '\063'
+#define CHAR_4                      '\064'
+#define CHAR_5                      '\065'
+#define CHAR_6                      '\066'
+#define CHAR_7                      '\067'
+#define CHAR_8                      '\070'
+#define CHAR_9                      '\071'
+#define CHAR_COLON                  '\072'
+#define CHAR_SEMICOLON              '\073'
+#define CHAR_LESS_THAN_SIGN         '\074'
+#define CHAR_EQUALS_SIGN            '\075'
+#define CHAR_GREATER_THAN_SIGN      '\076'
+#define CHAR_QUESTION_MARK          '\077'
+#define CHAR_COMMERCIAL_AT          '\100'
+#define CHAR_A                      '\101'
+#define CHAR_B                      '\102'
+#define CHAR_C                      '\103'
+#define CHAR_D                      '\104'
+#define CHAR_E                      '\105'
+#define CHAR_F                      '\106'
+#define CHAR_G                      '\107'
+#define CHAR_H                      '\110'
+#define CHAR_I                      '\111'
+#define CHAR_J                      '\112'
+#define CHAR_K                      '\113'
+#define CHAR_L                      '\114'
+#define CHAR_M                      '\115'
+#define CHAR_N                      '\116'
+#define CHAR_O                      '\117'
+#define CHAR_P                      '\120'
+#define CHAR_Q                      '\121'
+#define CHAR_R                      '\122'
+#define CHAR_S                      '\123'
+#define CHAR_T                      '\124'
+#define CHAR_U                      '\125'
+#define CHAR_V                      '\126'
+#define CHAR_W                      '\127'
+#define CHAR_X                      '\130'
+#define CHAR_Y                      '\131'
+#define CHAR_Z                      '\132'
+#define CHAR_LEFT_SQUARE_BRACKET    '\133'
+#define CHAR_BACKSLASH              '\134'
+#define CHAR_RIGHT_SQUARE_BRACKET   '\135'
+#define CHAR_CIRCUMFLEX_ACCENT      '\136'
+#define CHAR_UNDERSCORE             '\137'
+#define CHAR_GRAVE_ACCENT           '\140'
+#define CHAR_a                      '\141'
+#define CHAR_b                      '\142'
+#define CHAR_c                      '\143'
+#define CHAR_d                      '\144'
+#define CHAR_e                      '\145'
+#define CHAR_f                      '\146'
+#define CHAR_g                      '\147'
+#define CHAR_h                      '\150'
+#define CHAR_i                      '\151'
+#define CHAR_j                      '\152'
+#define CHAR_k                      '\153'
+#define CHAR_l                      '\154'
+#define CHAR_m                      '\155'
+#define CHAR_n                      '\156'
+#define CHAR_o                      '\157'
+#define CHAR_p                      '\160'
+#define CHAR_q                      '\161'
+#define CHAR_r                      '\162'
+#define CHAR_s                      '\163'
+#define CHAR_t                      '\164'
+#define CHAR_u                      '\165'
+#define CHAR_v                      '\166'
+#define CHAR_w                      '\167'
+#define CHAR_x                      '\170'
+#define CHAR_y                      '\171'
+#define CHAR_z                      '\172'
+#define CHAR_LEFT_CURLY_BRACKET     '\173'
+#define CHAR_VERTICAL_LINE          '\174'
+#define CHAR_RIGHT_CURLY_BRACKET    '\175'
+#define CHAR_TILDE                  '\176'
+
+#define STR_HT                      "\011"
+#define STR_VT                      "\013"
+#define STR_FF                      "\014"
+#define STR_CR                      "\015"
+#define STR_NL                      "\012"
+#define STR_BS                      "\010"
+#define STR_BEL                     "\007"
+#define STR_ESC                     "\033"
+#define STR_DEL                     "\177"
+
+#define STR_SPACE                   "\040"
+#define STR_EXCLAMATION_MARK        "\041"
+#define STR_QUOTATION_MARK          "\042"
+#define STR_NUMBER_SIGN             "\043"
+#define STR_DOLLAR_SIGN             "\044"
+#define STR_PERCENT_SIGN            "\045"
+#define STR_AMPERSAND               "\046"
+#define STR_APOSTROPHE              "\047"
+#define STR_LEFT_PARENTHESIS        "\050"
+#define STR_RIGHT_PARENTHESIS       "\051"
+#define STR_ASTERISK                "\052"
+#define STR_PLUS                    "\053"
+#define STR_COMMA                   "\054"
+#define STR_MINUS                   "\055"
+#define STR_DOT                     "\056"
+#define STR_SLASH                   "\057"
+#define STR_0                       "\060"
+#define STR_1                       "\061"
+#define STR_2                       "\062"
+#define STR_3                       "\063"
+#define STR_4                       "\064"
+#define STR_5                       "\065"
+#define STR_6                       "\066"
+#define STR_7                       "\067"
+#define STR_8                       "\070"
+#define STR_9                       "\071"
+#define STR_COLON                   "\072"
+#define STR_SEMICOLON               "\073"
+#define STR_LESS_THAN_SIGN          "\074"
+#define STR_EQUALS_SIGN             "\075"
+#define STR_GREATER_THAN_SIGN       "\076"
+#define STR_QUESTION_MARK           "\077"
+#define STR_COMMERCIAL_AT           "\100"
+#define STR_A                       "\101"
+#define STR_B                       "\102"
+#define STR_C                       "\103"
+#define STR_D                       "\104"
+#define STR_E                       "\105"
+#define STR_F                       "\106"
+#define STR_G                       "\107"
+#define STR_H                       "\110"
+#define STR_I                       "\111"
+#define STR_J                       "\112"
+#define STR_K                       "\113"
+#define STR_L                       "\114"
+#define STR_M                       "\115"
+#define STR_N                       "\116"
+#define STR_O                       "\117"
+#define STR_P                       "\120"
+#define STR_Q                       "\121"
+#define STR_R                       "\122"
+#define STR_S                       "\123"
+#define STR_T                       "\124"
+#define STR_U                       "\125"
+#define STR_V                       "\126"
+#define STR_W                       "\127"
+#define STR_X                       "\130"
+#define STR_Y                       "\131"
+#define STR_Z                       "\132"
+#define STR_LEFT_SQUARE_BRACKET     "\133"
+#define STR_BACKSLASH               "\134"
+#define STR_RIGHT_SQUARE_BRACKET    "\135"
+#define STR_CIRCUMFLEX_ACCENT       "\136"
+#define STR_UNDERSCORE              "\137"
+#define STR_GRAVE_ACCENT            "\140"
+#define STR_a                       "\141"
+#define STR_b                       "\142"
+#define STR_c                       "\143"
+#define STR_d                       "\144"
+#define STR_e                       "\145"
+#define STR_f                       "\146"
+#define STR_g                       "\147"
+#define STR_h                       "\150"
+#define STR_i                       "\151"
+#define STR_j                       "\152"
+#define STR_k                       "\153"
+#define STR_l                       "\154"
+#define STR_m                       "\155"
+#define STR_n                       "\156"
+#define STR_o                       "\157"
+#define STR_p                       "\160"
+#define STR_q                       "\161"
+#define STR_r                       "\162"
+#define STR_s                       "\163"
+#define STR_t                       "\164"
+#define STR_u                       "\165"
+#define STR_v                       "\166"
+#define STR_w                       "\167"
+#define STR_x                       "\170"
+#define STR_y                       "\171"
+#define STR_z                       "\172"
+#define STR_LEFT_CURLY_BRACKET      "\173"
+#define STR_VERTICAL_LINE           "\174"
+#define STR_RIGHT_CURLY_BRACKET     "\175"
+#define STR_TILDE                   "\176"
+
+#define STRING_ACCEPT0              STR_A STR_C STR_C STR_E STR_P STR_T "\0"
+#define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"
+#define STRING_F0                   STR_F "\0"
+#define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"
+#define STRING_MARK0                STR_M STR_A STR_R STR_K "\0"
+#define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"
+#define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"
+#define STRING_THEN                 STR_T STR_H STR_E STR_N
+
+#define STRING_alpha0               STR_a STR_l STR_p STR_h STR_a "\0"
+#define STRING_lower0               STR_l STR_o STR_w STR_e STR_r "\0"
+#define STRING_upper0               STR_u STR_p STR_p STR_e STR_r "\0"
+#define STRING_alnum0               STR_a STR_l STR_n STR_u STR_m "\0"
+#define STRING_ascii0               STR_a STR_s STR_c STR_i STR_i "\0"
+#define STRING_blank0               STR_b STR_l STR_a STR_n STR_k "\0"
+#define STRING_cntrl0               STR_c STR_n STR_t STR_r STR_l "\0"
+#define STRING_digit0               STR_d STR_i STR_g STR_i STR_t "\0"
+#define STRING_graph0               STR_g STR_r STR_a STR_p STR_h "\0"
+#define STRING_print0               STR_p STR_r STR_i STR_n STR_t "\0"
+#define STRING_punct0               STR_p STR_u STR_n STR_c STR_t "\0"
+#define STRING_space0               STR_s STR_p STR_a STR_c STR_e "\0"
+#define STRING_word0                STR_w STR_o STR_r STR_d       "\0"
+#define STRING_xdigit               STR_x STR_d STR_i STR_g STR_i STR_t
+
+#define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E
+
+#define STRING_CR_RIGHTPAR             STR_C STR_R STR_RIGHT_PARENTHESIS
+#define STRING_LF_RIGHTPAR             STR_L STR_F STR_RIGHT_PARENTHESIS
+#define STRING_CRLF_RIGHTPAR           STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
+#define STRING_ANY_RIGHTPAR            STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
+#define STRING_ANYCRLF_RIGHTPAR        STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
+#define STRING_BSR_ANYCRLF_RIGHTPAR    STR_B STR_S STR_R STR_UNDERSCORE STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
+#define STRING_BSR_UNICODE_RIGHTPAR    STR_B STR_S STR_R STR_UNDERSCORE STR_U STR_N STR_I STR_C STR_O STR_D STR_E STR_RIGHT_PARENTHESIS
+#ifdef COMPILE_PCRE8
+#define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
+#endif
+#ifdef COMPILE_PCRE16
+#define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
+#endif
+#define STRING_UCP_RIGHTPAR            STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
+#define STRING_NO_START_OPT_RIGHTPAR   STR_N STR_O STR_UNDERSCORE STR_S STR_T STR_A STR_R STR_T STR_UNDERSCORE STR_O STR_P STR_T STR_RIGHT_PARENTHESIS
+
+#endif  /* SUPPORT_UTF */
+
+/* Escape items that are just an encoding of a particular data value. */
+
+#ifndef ESC_e
+#define ESC_e CHAR_ESC
+#endif
+
+#ifndef ESC_f
+#define ESC_f CHAR_FF
+#endif
+
+#ifndef ESC_n
+#define ESC_n CHAR_NL
+#endif
+
+#ifndef ESC_r
+#define ESC_r CHAR_CR
+#endif
+
+/* We can't officially use ESC_t because it is a POSIX reserved identifier
+(presumably because of all the others like size_t). */
+
+#ifndef ESC_tee
+#define ESC_tee CHAR_HT
+#endif
+
+/* Codes for different types of Unicode property */
+
+#define PT_ANY        0    /* Any property - matches all chars */
+#define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */
+#define PT_GC         2    /* Specified general characteristic (e.g. L) */
+#define PT_PC         3    /* Specified particular characteristic (e.g. Lu) */
+#define PT_SC         4    /* Script (e.g. Han) */
+#define PT_ALNUM      5    /* Alphanumeric - the union of L and N */
+#define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */
+#define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
+#define PT_WORD       8    /* Word - L plus N plus underscore */
+
+/* Flag bits and data types for the extended class (OP_XCLASS) for classes that
+contain characters with values greater than 255. */
+
+#define XCL_NOT    0x01    /* Flag: this is a negative class */
+#define XCL_MAP    0x02    /* Flag: a 32-byte map is present */
+
+#define XCL_END       0    /* Marks end of individual items */
+#define XCL_SINGLE    1    /* Single item (one multibyte char) follows */
+#define XCL_RANGE     2    /* A range (two multibyte chars) follows */
+#define XCL_PROP      3    /* Unicode property (2-byte property code follows) */
+#define XCL_NOTPROP   4    /* Unicode inverted property (ditto) */
+
+/* These are escaped items that aren't just an encoding of a particular data
+value such as \n. They must have non-zero values, as check_escape() returns
+their negation. Also, they must appear in the same order as in the opcode
+definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
+corresponds to "." in DOTALL mode rather than an escape sequence. It is also
+used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
+non-DOTALL mode, "." behaves like \N.
+
+The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
+when PCRE_UCP is set, when replacement of \d etc by \p sequences is required.
+They must be contiguous, and remain in order so that the replacements can be
+looked up from a table.
+
+The final escape must be ESC_REF as subsequent values are used for
+backreferences (\1, \2, \3, etc). There are two tests in the code for an escape
+greater than ESC_b and less than ESC_Z to detect the types that may be
+repeated. These are the types that consume characters. If any new escapes are
+put in between that don't consume a character, that code will have to change.
+*/
+
+enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
+       ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
+       ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
+       ESC_E, ESC_Q, ESC_g, ESC_k,
+       ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu,
+       ESC_REF };
+
+/* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
+OP_EOD must correspond in order to the list of escapes immediately above.
+
+*** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
+that follow must also be updated to match. There are also tables called
+"coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
+
+enum {
+  OP_END,            /* 0 End of pattern */
+
+  /* Values corresponding to backslashed metacharacters */
+
+  OP_SOD,            /* 1 Start of data: \A */
+  OP_SOM,            /* 2 Start of match (subject + offset): \G */
+  OP_SET_SOM,        /* 3 Set start of match (\K) */
+  OP_NOT_WORD_BOUNDARY,  /*  4 \B */
+  OP_WORD_BOUNDARY,      /*  5 \b */
+  OP_NOT_DIGIT,          /*  6 \D */
+  OP_DIGIT,              /*  7 \d */
+  OP_NOT_WHITESPACE,     /*  8 \S */
+  OP_WHITESPACE,         /*  9 \s */
+  OP_NOT_WORDCHAR,       /* 10 \W */
+  OP_WORDCHAR,           /* 11 \w */
+
+  OP_ANY,            /* 12 Match any character except newline */
+  OP_ALLANY,         /* 13 Match any character */
+  OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
+  OP_NOTPROP,        /* 15 \P (not Unicode property) */
+  OP_PROP,           /* 16 \p (Unicode property) */
+  OP_ANYNL,          /* 17 \R (any newline sequence) */
+  OP_NOT_HSPACE,     /* 18 \H (not horizontal whitespace) */
+  OP_HSPACE,         /* 19 \h (horizontal whitespace) */
+  OP_NOT_VSPACE,     /* 20 \V (not vertical whitespace) */
+  OP_VSPACE,         /* 21 \v (vertical whitespace) */
+  OP_EXTUNI,         /* 22 \X (extended Unicode sequence */
+  OP_EODN,           /* 23 End of data or \n at end of data: \Z. */
+  OP_EOD,            /* 24 End of data: \z */
+
+  OP_CIRC,           /* 25 Start of line - not multiline */
+  OP_CIRCM,          /* 26 Start of line - multiline */
+  OP_DOLL,           /* 27 End of line - not multiline */
+  OP_DOLLM,          /* 28 End of line - multiline */
+  OP_CHAR,           /* 29 Match one character, casefully */
+  OP_CHARI,          /* 30 Match one character, caselessly */
+  OP_NOT,            /* 31 Match one character, not the given one, casefully */
+  OP_NOTI,           /* 32 Match one character, not the given one, caselessly */
+
+  /* The following sets of 13 opcodes must always be kept in step because
+  the offset from the first one is used to generate the others. */
+
+  /**** Single characters, caseful, must precede the caseless ones ****/
+
+  OP_STAR,           /* 33 The maximizing and minimizing versions of */
+  OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
+  OP_PLUS,           /* 35 the minimizing one second. */
+  OP_MINPLUS,        /* 36 */
+  OP_QUERY,          /* 37 */
+  OP_MINQUERY,       /* 38 */
+
+  OP_UPTO,           /* 39 From 0 to n matches of one character, caseful*/
+  OP_MINUPTO,        /* 40 */
+  OP_EXACT,          /* 41 Exactly n matches */
+
+  OP_POSSTAR,        /* 42 Possessified star, caseful */
+  OP_POSPLUS,        /* 43 Possessified plus, caseful */
+  OP_POSQUERY,       /* 44 Posesssified query, caseful */
+  OP_POSUPTO,        /* 45 Possessified upto, caseful */
+
+  /**** Single characters, caseless, must follow the caseful ones */
+
+  OP_STARI,          /* 46 */
+  OP_MINSTARI,       /* 47 */
+  OP_PLUSI,          /* 48 */
+  OP_MINPLUSI,       /* 49 */
+  OP_QUERYI,         /* 50 */
+  OP_MINQUERYI,      /* 51 */
+
+  OP_UPTOI,          /* 52 From 0 to n matches of one character, caseless */
+  OP_MINUPTOI,       /* 53 */
+  OP_EXACTI,         /* 54 */
+
+  OP_POSSTARI,       /* 55 Possessified star, caseless */
+  OP_POSPLUSI,       /* 56 Possessified plus, caseless */
+  OP_POSQUERYI,      /* 57 Posesssified query, caseless */
+  OP_POSUPTOI,       /* 58 Possessified upto, caseless */
+
+  /**** The negated ones must follow the non-negated ones, and match them ****/
+  /**** Negated single character, caseful; must precede the caseless ones ****/
+
+  OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
+  OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
+  OP_NOTPLUS,        /* 61 the minimizing one second. They must be in */
+  OP_NOTMINPLUS,     /* 62 exactly the same order as those above. */
+  OP_NOTQUERY,       /* 63 */
+  OP_NOTMINQUERY,    /* 64 */
+
+  OP_NOTUPTO,        /* 65 From 0 to n matches, caseful */
+  OP_NOTMINUPTO,     /* 66 */
+  OP_NOTEXACT,       /* 67 Exactly n matches */
+
+  OP_NOTPOSSTAR,     /* 68 Possessified versions, caseful */
+  OP_NOTPOSPLUS,     /* 69 */
+  OP_NOTPOSQUERY,    /* 70 */
+  OP_NOTPOSUPTO,     /* 71 */
+
+  /**** Negated single character, caseless; must follow the caseful ones ****/
+
+  OP_NOTSTARI,       /* 72 */
+  OP_NOTMINSTARI,    /* 73 */
+  OP_NOTPLUSI,       /* 74 */
+  OP_NOTMINPLUSI,    /* 75 */
+  OP_NOTQUERYI,      /* 76 */
+  OP_NOTMINQUERYI,   /* 77 */
+
+  OP_NOTUPTOI,       /* 78 From 0 to n matches, caseless */
+  OP_NOTMINUPTOI,    /* 79 */
+  OP_NOTEXACTI,      /* 80 Exactly n matches */
+
+  OP_NOTPOSSTARI,    /* 81 Possessified versions, caseless */
+  OP_NOTPOSPLUSI,    /* 82 */
+  OP_NOTPOSQUERYI,   /* 83 */
+  OP_NOTPOSUPTOI,    /* 84 */
+
+  /**** Character types ****/
+
+  OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
+  OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
+  OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
+  OP_TYPEMINPLUS,    /* 88 be in exactly the same order as those above. */
+  OP_TYPEQUERY,      /* 89 */
+  OP_TYPEMINQUERY,   /* 90 */
+
+  OP_TYPEUPTO,       /* 91 From 0 to n matches */
+  OP_TYPEMINUPTO,    /* 92 */
+  OP_TYPEEXACT,      /* 93 Exactly n matches */
+
+  OP_TYPEPOSSTAR,    /* 94 Possessified versions */
+  OP_TYPEPOSPLUS,    /* 95 */
+  OP_TYPEPOSQUERY,   /* 96 */
+  OP_TYPEPOSUPTO,    /* 97 */
+
+  /* These are used for character classes and back references; only the
+  first six are the same as the sets above. */
+
+  OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
+  OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
+  OP_CRPLUS,         /* 100 the minimizing one second. These codes must */
+  OP_CRMINPLUS,      /* 101 be in exactly the same order as those above. */
+  OP_CRQUERY,        /* 102 */
+  OP_CRMINQUERY,     /* 103 */
+
+  OP_CRRANGE,        /* 104 These are different to the three sets above. */
+  OP_CRMINRANGE,     /* 105 */
+
+  /* End of quantifier opcodes */
+
+  OP_CLASS,          /* 106 Match a character class, chars < 256 only */
+  OP_NCLASS,         /* 107 Same, but the bitmap was created from a negative
+                              class - the difference is relevant only when a
+                              character > 255 is encountered. */
+  OP_XCLASS,         /* 108 Extended class for handling > 255 chars within the
+                              class. This does both positive and negative. */
+  OP_REF,            /* 109 Match a back reference, casefully */
+  OP_REFI,           /* 110 Match a back reference, caselessly */
+  OP_RECURSE,        /* 111 Match a numbered subpattern (possibly recursive) */
+  OP_CALLOUT,        /* 112 Call out to external function if provided */
+
+  OP_ALT,            /* 113 Start of alternation */
+  OP_KET,            /* 114 End of group that doesn't have an unbounded repeat */
+  OP_KETRMAX,        /* 115 These two must remain together and in this */
+  OP_KETRMIN,        /* 116 order. They are for groups the repeat for ever. */
+  OP_KETRPOS,        /* 117 Possessive unlimited repeat. */
+
+  /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
+  asserts must remain in order. */
+
+  OP_REVERSE,        /* 118 Move pointer back - used in lookbehind assertions */
+  OP_ASSERT,         /* 119 Positive lookahead */
+  OP_ASSERT_NOT,     /* 120 Negative lookahead */
+  OP_ASSERTBACK,     /* 121 Positive lookbehind */
+  OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
+
+  /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
+  after the assertions, with ONCE first, as there's a test for >= ONCE for a
+  subpattern that isn't an assertion. The POS versions must immediately follow
+  the non-POS versions in each case. */
+
+  OP_ONCE,           /* 123 Atomic group, contains captures */
+  OP_ONCE_NC,        /* 124 Atomic group containing no captures */
+  OP_BRA,            /* 125 Start of non-capturing bracket */
+  OP_BRAPOS,         /* 126 Ditto, with unlimited, possessive repeat */
+  OP_CBRA,           /* 127 Start of capturing bracket */
+  OP_CBRAPOS,        /* 128 Ditto, with unlimited, possessive repeat */
+  OP_COND,           /* 129 Conditional group */
+
+  /* These five must follow the previous five, in the same order. There's a
+  check for >= SBRA to distinguish the two sets. */
+
+  OP_SBRA,           /* 130 Start of non-capturing bracket, check empty  */
+  OP_SBRAPOS,        /* 131 Ditto, with unlimited, possessive repeat */
+  OP_SCBRA,          /* 132 Start of capturing bracket, check empty */
+  OP_SCBRAPOS,       /* 133 Ditto, with unlimited, possessive repeat */
+  OP_SCOND,          /* 134 Conditional group, check empty */
+
+  /* The next two pairs must (respectively) be kept together. */
+
+  OP_CREF,           /* 135 Used to hold a capture number as condition */
+  OP_NCREF,          /* 136 Same, but generated by a name reference*/
+  OP_RREF,           /* 137 Used to hold a recursion number as condition */
+  OP_NRREF,          /* 138 Same, but generated by a name reference*/
+  OP_DEF,            /* 139 The DEFINE condition */
+
+  OP_BRAZERO,        /* 140 These two must remain together and in this */
+  OP_BRAMINZERO,     /* 141 order. */
+  OP_BRAPOSZERO,     /* 142 */
+
+  /* These are backtracking control verbs */
+
+  OP_MARK,           /* 143 always has an argument */
+  OP_PRUNE,          /* 144 */
+  OP_PRUNE_ARG,      /* 145 same, but with argument */
+  OP_SKIP,           /* 146 */
+  OP_SKIP_ARG,       /* 147 same, but with argument */
+  OP_THEN,           /* 148 */
+  OP_THEN_ARG,       /* 149 same, but with argument */
+  OP_COMMIT,         /* 150 */
+
+  /* These are forced failure and success verbs */
+
+  OP_FAIL,           /* 151 */
+  OP_ACCEPT,         /* 152 */
+  OP_ASSERT_ACCEPT,  /* 153 Used inside assertions */
+  OP_CLOSE,          /* 154 Used before OP_ACCEPT to close open captures */
+
+  /* This is used to skip a subpattern with a {0} quantifier */
+
+  OP_SKIPZERO,       /* 155 */
+
+  /* This is not an opcode, but is used to check that tables indexed by opcode
+  are the correct length, in order to catch updating errors - there have been
+  some in the past. */
+
+  OP_TABLE_LENGTH
+};
+
+/* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
+definitions that follow must also be updated to match. There are also tables
+called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
+
+
+/* This macro defines textual names for all the opcodes. These are used only
+for debugging, and some of them are only partial names. The macro is referenced
+only in pcre_printint.c, which fills out the full names in many cases (and in
+some cases doesn't actually use these names at all). */
+
+#define OP_NAME_LIST \
+  "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
+  "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
+  "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
+  "extuni",  "\\Z", "\\z",                                        \
+  "^", "^", "$", "$", "char", "chari", "not", "noti",             \
+  "*", "*?", "+", "+?", "?", "??",                                \
+  "{", "{", "{",                                                  \
+  "*+","++", "?+", "{",                                           \
+  "*", "*?", "+", "+?", "?", "??",                                \
+  "{", "{", "{",                                                  \
+  "*+","++", "?+", "{",                                           \
+  "*", "*?", "+", "+?", "?", "??",                                \
+  "{", "{", "{",                                                  \
+  "*+","++", "?+", "{",                                           \
+  "*", "*?", "+", "+?", "?", "??",                                \
+  "{", "{", "{",                                                  \
+  "*+","++", "?+", "{",                                           \
+  "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
+  "*+","++", "?+", "{",                                           \
+  "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
+  "class", "nclass", "xclass", "Ref", "Refi",                     \
+  "Recurse", "Callout",                                           \
+  "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
+  "Reverse", "Assert", "Assert not", "AssertB", "AssertB not",    \
+  "Once", "Once_NC",                                              \
+  "Bra", "BraPos", "CBra", "CBraPos",                             \
+  "Cond",                                                         \
+  "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
+  "SCond",                                                        \
+  "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \
+  "Brazero", "Braminzero", "Braposzero",                          \
+  "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
+  "*THEN", "*THEN", "*COMMIT", "*FAIL",                           \
+  "*ACCEPT", "*ASSERT_ACCEPT",                                    \
+  "Close", "Skip zero"
+
+
+/* This macro defines the length of fixed length operations in the compiled
+regex. The lengths are used when searching for specific things, and also in the
+debugging printing of a compiled regex. We use a macro so that it can be
+defined close to the definitions of the opcodes themselves.
+
+As things have been extended, some of these are no longer fixed lenths, but are
+minima instead. For example, the length of a single-character repeat may vary
+in UTF-8 mode. The code that uses this table must know about such things. */
+
+#define OP_LENGTHS \
+  1,                             /* End                                    */ \
+  1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \
+  1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
+  1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \
+  3, 3,                          /* \P, \p                                 */ \
+  1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
+  1,                             /* \X                                     */ \
+  1, 1, 1, 1, 1, 1,              /* \Z, \z, ^, ^M, $, $M                   */ \
+  2,                             /* Char  - the minimum length             */ \
+  2,                             /* Chari  - the minimum length            */ \
+  2,                             /* not                                    */ \
+  2,                             /* noti                                   */ \
+  /* Positive single-char repeats                             ** These are */ \
+  2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??       ** minima in */ \
+  2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto, minupto             ** mode      */ \
+  2+IMM2_SIZE,                   /* exact                                  */ \
+  2, 2, 2, 2+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */ \
+  2, 2, 2, 2, 2, 2,              /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8     */ \
+  2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto I, minupto I                      */ \
+  2+IMM2_SIZE,                   /* exact I                                */ \
+  2, 2, 2, 2+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */ \
+  /* Negative single-char repeats - only for chars < 256                   */ \
+  2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
+  2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto, minupto                      */ \
+  2+IMM2_SIZE,                   /* NOT exact                              */ \
+  2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *, +, ?, upto           */ \
+  2, 2, 2, 2, 2, 2,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */ \
+  2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto I, minupto I                  */ \
+  2+IMM2_SIZE,                   /* NOT exact I                            */ \
+  2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *I, +I, ?I, upto I      */ \
+  /* Positive type repeats                                                 */ \
+  2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
+  2+IMM2_SIZE, 2+IMM2_SIZE,      /* Type upto, minupto                     */ \
+  2+IMM2_SIZE,                   /* Type exact                             */ \
+  2, 2, 2, 2+IMM2_SIZE,          /* Possessive *+, ++, ?+, upto+           */ \
+  /* Character class & ref repeats                                         */ \
+  1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
+  1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \
+  1+(32/sizeof(pcre_uchar)),     /* CLASS                                  */ \
+  1+(32/sizeof(pcre_uchar)),     /* NCLASS                                 */ \
+  0,                             /* XCLASS - variable length               */ \
+  1+IMM2_SIZE,                   /* REF                                    */ \
+  1+IMM2_SIZE,                   /* REFI                                   */ \
+  1+LINK_SIZE,                   /* RECURSE                                */ \
+  2+2*LINK_SIZE,                 /* CALLOUT                                */ \
+  1+LINK_SIZE,                   /* Alt                                    */ \
+  1+LINK_SIZE,                   /* Ket                                    */ \
+  1+LINK_SIZE,                   /* KetRmax                                */ \
+  1+LINK_SIZE,                   /* KetRmin                                */ \
+  1+LINK_SIZE,                   /* KetRpos                                */ \
+  1+LINK_SIZE,                   /* Reverse                                */ \
+  1+LINK_SIZE,                   /* Assert                                 */ \
+  1+LINK_SIZE,                   /* Assert not                             */ \
+  1+LINK_SIZE,                   /* Assert behind                          */ \
+  1+LINK_SIZE,                   /* Assert behind not                      */ \
+  1+LINK_SIZE,                   /* ONCE                                   */ \
+  1+LINK_SIZE,                   /* ONCE_NC                                */ \
+  1+LINK_SIZE,                   /* BRA                                    */ \
+  1+LINK_SIZE,                   /* BRAPOS                                 */ \
+  1+LINK_SIZE+IMM2_SIZE,         /* CBRA                                   */ \
+  1+LINK_SIZE+IMM2_SIZE,         /* CBRAPOS                                */ \
+  1+LINK_SIZE,                   /* COND                                   */ \
+  1+LINK_SIZE,                   /* SBRA                                   */ \
+  1+LINK_SIZE,                   /* SBRAPOS                                */ \
+  1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \
+  1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \
+  1+LINK_SIZE,                   /* SCOND                                  */ \
+  1+IMM2_SIZE, 1+IMM2_SIZE,      /* CREF, NCREF                            */ \
+  1+IMM2_SIZE, 1+IMM2_SIZE,      /* RREF, NRREF                            */ \
+  1,                             /* DEF                                    */ \
+  1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
+  3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
+  1, 3,                          /* SKIP, SKIP_ARG                         */ \
+  1, 3,                          /* THEN, THEN_ARG                         */ \
+  1, 1, 1, 1,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */ \
+  1+IMM2_SIZE, 1                 /* CLOSE, SKIPZERO                        */
+
+/* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
+condition. */
+
+#define RREF_ANY  0xffff
+
+/* Compile time error code numbers. They are given names so that they can more
+easily be tracked. When a new number is added, the table called eint in
+pcreposix.c must be updated. */
+
+enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,
+       ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
+       ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
+       ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
+       ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
+       ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
+       ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
+       ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERRCOUNT };
+
+/* JIT compiling modes. The function list is indexed by them. */
+enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
+       JIT_NUMBER_OF_COMPILE_MODES };
+
+/* The real format of the start of the pcre block; the index of names and the
+code vector run on as long as necessary after the end. We store an explicit
+offset to the name table so that if a regex is compiled on one host, saved, and
+then run on another where the size of pointers is different, all might still
+be well. For the case of compiled-on-4 and run-on-8, we include an extra
+pointer that is always NULL. For future-proofing, a few dummy fields were
+originally included - even though you can never get this planning right - but
+there is only one left now.
+
+NOTE NOTE NOTE:
+Because people can now save and re-use compiled patterns, any additions to this
+structure should be made at the end, and something earlier (e.g. a new
+flag in the options or one of the dummy fields) should indicate that the new
+fields are present. Currently PCRE always sets the dummy fields to zero.
+NOTE NOTE NOTE
+*/
+
+#ifdef COMPILE_PCRE8
+#define REAL_PCRE real_pcre
+#else
+#define REAL_PCRE real_pcre16
+#endif
+
+typedef struct REAL_PCRE {
+  pcre_uint32 magic_number;
+  pcre_uint32 size;               /* Total that was malloced */
+  pcre_uint32 options;            /* Public options */
+  pcre_uint16 flags;              /* Private flags */
+  pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
+  pcre_uint16 top_bracket;        /* Highest numbered group */
+  pcre_uint16 top_backref;        /* Highest numbered back reference */
+  pcre_uint16 first_char;         /* Starting character */
+  pcre_uint16 req_char;           /* This character must be seen */
+  pcre_uint16 name_table_offset;  /* Offset to name table that follows */
+  pcre_uint16 name_entry_size;    /* Size of any name items */
+  pcre_uint16 name_count;         /* Number of name items */
+  pcre_uint16 ref_count;          /* Reference count */
+  const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
+  const pcre_uint8 *nullpad;      /* NULL padding */
+} REAL_PCRE;
+
+/* The format of the block used to store data from pcre_study(). The same
+remark (see NOTE above) about extending this structure applies. */
+
+typedef struct pcre_study_data {
+  pcre_uint32 size;               /* Total that was malloced */
+  pcre_uint32 flags;              /* Private flags */
+  pcre_uint8 start_bits[32];      /* Starting char bits */
+  pcre_uint32 minlength;          /* Minimum subject length */
+} pcre_study_data;
+
+/* Structure for building a chain of open capturing subpatterns during
+compiling, so that instructions to close them can be compiled when (*ACCEPT) is
+encountered. This is also used to identify subpatterns that contain recursive
+back references to themselves, so that they can be made atomic. */
+
+typedef struct open_capitem {
+  struct open_capitem *next;    /* Chain link */
+  pcre_uint16 number;           /* Capture number */
+  pcre_uint16 flag;             /* Set TRUE if recursive back ref */
+} open_capitem;
+
+/* Structure for passing "static" information around between the functions
+doing the compiling, so that they are thread-safe. */
+
+typedef struct compile_data {
+  const pcre_uint8 *lcc;            /* Points to lower casing table */
+  const pcre_uint8 *fcc;            /* Points to case-flipping table */
+  const pcre_uint8 *cbits;          /* Points to character type table */
+  const pcre_uint8 *ctypes;         /* Points to table of type maps */
+  const pcre_uchar *start_workspace;/* The start of working space */
+  const pcre_uchar *start_code;     /* The start of the compiled code */
+  const pcre_uchar *start_pattern;  /* The start of the pattern */
+  const pcre_uchar *end_pattern;    /* The end of the pattern */
+  open_capitem *open_caps;          /* Chain of open capture items */
+  pcre_uchar *hwm;                  /* High watermark of workspace */
+  pcre_uchar *name_table;           /* The name/number table */
+  int  names_found;                 /* Number of entries so far */
+  int  name_entry_size;             /* Size of each entry */
+  int  workspace_size;              /* Size of workspace */
+  int  bracount;                    /* Count of capturing parens as we compile */
+  int  final_bracount;              /* Saved value after first pass */
+  int  max_lookbehind;              /* Maximum lookbehind (characters) */
+  int  top_backref;                 /* Maximum back reference */
+  unsigned int backref_map;         /* Bitmap of low back refs */
+  int  assert_depth;                /* Depth of nested assertions */
+  int  external_options;            /* External (initial) options */
+  int  external_flags;              /* External flag bits to be set */
+  int  req_varyopt;                 /* "After variable item" flag for reqbyte */
+  BOOL had_accept;                  /* (*ACCEPT) encountered */
+  BOOL check_lookbehind;            /* Lookbehinds need later checking */
+  int  nltype;                      /* Newline type */
+  int  nllen;                       /* Newline string length */
+  pcre_uchar nl[4];                 /* Newline string when fixed length */
+} compile_data;
+
+/* Structure for maintaining a chain of pointers to the currently incomplete
+branches, for testing for left recursion while compiling. */
+
+typedef struct branch_chain {
+  struct branch_chain *outer;
+  pcre_uchar *current_branch;
+} branch_chain;
+
+/* Structure for items in a linked list that represents an explicit recursive
+call within the pattern; used by pcre_exec(). */
+
+typedef struct recursion_info {
+  struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
+  int group_num;                  /* Number of group that was called */
+  int *offset_save;               /* Pointer to start of saved offsets */
+  int saved_max;                  /* Number of saved offsets */
+  PCRE_PUCHAR subject_position;   /* Position at start of recursion */
+} recursion_info;
+
+/* A similar structure for pcre_dfa_exec(). */
+
+typedef struct dfa_recursion_info {
+  struct dfa_recursion_info *prevrec;
+  int group_num;
+  PCRE_PUCHAR subject_position;
+} dfa_recursion_info;
+
+/* Structure for building a chain of data for holding the values of the subject
+pointer at the start of each subpattern, so as to detect when an empty string
+has been matched by a subpattern - to break infinite loops; used by
+pcre_exec(). */
+
+typedef struct eptrblock {
+  struct eptrblock *epb_prev;
+  PCRE_PUCHAR epb_saved_eptr;
+} eptrblock;
+
+
+/* Structure for passing "static" information around between the functions
+doing traditional NFA matching, so that they are thread-safe. */
+
+typedef struct match_data {
+  unsigned long int match_call_count;      /* As it says */
+  unsigned long int match_limit;           /* As it says */
+  unsigned long int match_limit_recursion; /* As it says */
+  int   *offset_vector;           /* Offset vector */
+  int    offset_end;              /* One past the end */
+  int    offset_max;              /* The maximum usable for return data */
+  int    nltype;                  /* Newline type */
+  int    nllen;                   /* Newline string length */
+  int    name_count;              /* Number of names in name table */
+  int    name_entry_size;         /* Size of entry in names table */
+  pcre_uchar *name_table;         /* Table of names */
+  pcre_uchar nl[4];               /* Newline string when fixed */
+  const  pcre_uint8 *lcc;         /* Points to lower casing table */
+  const  pcre_uint8 *fcc;         /* Points to case-flipping table */
+  const  pcre_uint8 *ctypes;      /* Points to table of type maps */
+  BOOL   offset_overflow;         /* Set if too many extractions */
+  BOOL   notbol;                  /* NOTBOL flag */
+  BOOL   noteol;                  /* NOTEOL flag */
+  BOOL   utf;                     /* UTF-8 / UTF-16 flag */
+  BOOL   jscript_compat;          /* JAVASCRIPT_COMPAT flag */
+  BOOL   use_ucp;                 /* PCRE_UCP flag */
+  BOOL   endonly;                 /* Dollar not before final \n */
+  BOOL   notempty;                /* Empty string match not wanted */
+  BOOL   notempty_atstart;        /* Empty string match at start not wanted */
+  BOOL   hitend;                  /* Hit the end of the subject at some point */
+  BOOL   bsr_anycrlf;             /* \R is just any CRLF, not full Unicode */
+  BOOL   hasthen;                 /* Pattern contains (*THEN) */
+  BOOL   ignore_skip_arg;         /* For re-run when SKIP name not found */
+  const  pcre_uchar *start_code;  /* For use when recursing */
+  PCRE_PUCHAR start_subject;      /* Start of the subject string */
+  PCRE_PUCHAR end_subject;        /* End of the subject string */
+  PCRE_PUCHAR start_match_ptr;    /* Start of matched string */
+  PCRE_PUCHAR end_match_ptr;      /* Subject position at end match */
+  PCRE_PUCHAR start_used_ptr;     /* Earliest consulted character */
+  int    partial;                 /* PARTIAL options */
+  int    end_offset_top;          /* Highwater mark at end of match */
+  int    capture_last;            /* Most recent capture number */
+  int    start_offset;            /* The start offset value */
+  int    match_function_type;     /* Set for certain special calls of MATCH() */
+  eptrblock *eptrchain;           /* Chain of eptrblocks for tail recursions */
+  int    eptrn;                   /* Next free eptrblock */
+  recursion_info *recursive;      /* Linked list of recursion data */
+  void  *callout_data;            /* To pass back to callouts */
+  const  pcre_uchar *mark;        /* Mark pointer to pass back on success */
+  const  pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
+  const  pcre_uchar *once_target; /* Where to back up to for atomic groups */
+#ifdef NO_RECURSE
+  void  *match_frames_base;       /* For remembering malloc'd frames */
+#endif
+} match_data;
+
+/* A similar structure is used for the same purpose by the DFA matching
+functions. */
+
+typedef struct dfa_match_data {
+  const pcre_uchar *start_code;     /* Start of the compiled pattern */
+  const pcre_uchar *start_subject ; /* Start of the subject string */
+  const pcre_uchar *end_subject;    /* End of subject string */
+  const pcre_uchar *start_used_ptr; /* Earliest consulted character */
+  const pcre_uint8 *tables;         /* Character tables */
+  int   start_offset;               /* The start offset value */
+  int   moptions;                   /* Match options */
+  int   poptions;                   /* Pattern options */
+  int   nltype;                     /* Newline type */
+  int   nllen;                      /* Newline string length */
+  pcre_uchar nl[4];                 /* Newline string when fixed */
+  void *callout_data;               /* To pass back to callouts */
+  dfa_recursion_info *recursive;    /* Linked list of recursion data */
+} dfa_match_data;
+
+/* Bit definitions for entries in the pcre_ctypes table. */
+
+#define ctype_space   0x01
+#define ctype_letter  0x02
+#define ctype_digit   0x04
+#define ctype_xdigit  0x08
+#define ctype_word    0x10   /* alphanumeric or '_' */
+#define ctype_meta    0x80   /* regexp meta char or zero (end pattern) */
+
+/* Offsets for the bitmap tables in pcre_cbits. Each table contains a set
+of bits for a class map. Some classes are built by combining these tables. */
+
+#define cbit_space     0      /* [:space:] or \s */
+#define cbit_xdigit   32      /* [:xdigit:] */
+#define cbit_digit    64      /* [:digit:] or \d */
+#define cbit_upper    96      /* [:upper:] */
+#define cbit_lower   128      /* [:lower:] */
+#define cbit_word    160      /* [:word:] or \w */
+#define cbit_graph   192      /* [:graph:] */
+#define cbit_print   224      /* [:print:] */
+#define cbit_punct   256      /* [:punct:] */
+#define cbit_cntrl   288      /* [:cntrl:] */
+#define cbit_length  320      /* Length of the cbits table */
+
+/* Offsets of the various tables from the base tables pointer, and
+total length. */
+
+#define lcc_offset      0
+#define fcc_offset    256
+#define cbits_offset  512
+#define ctypes_offset (cbits_offset + cbit_length)
+#define tables_length (ctypes_offset + 256)
+
+/* Internal function and data prefixes. */
+
+#ifdef COMPILE_PCRE8
+#ifndef PUBL
+#define PUBL(name) pcre_##name
+#endif
+#ifndef PRIV
+#define PRIV(name) _pcre_##name
+#endif
+#else /* COMPILE_PCRE8 */
+#ifdef COMPILE_PCRE16
+#ifndef PUBL
+#define PUBL(name) pcre16_##name
+#endif
+#ifndef PRIV
+#define PRIV(name) _pcre16_##name
+#endif
+#else
+#error Unsupported compiling mode
+#endif /* COMPILE_PCRE16 */
+#endif /* COMPILE_PCRE8 */
+
+/* Layout of the UCP type table that translates property names into types and
+codes. Each entry used to point directly to a name, but to reduce the number of
+relocations in shared libraries, it now has an offset into a single string
+instead. */
+
+typedef struct {
+  pcre_uint16 name_offset;
+  pcre_uint16 type;
+  pcre_uint16 value;
+} ucp_type_table;
+
+
+/* Internal shared data tables. These are tables that are used by more than one
+of the exported public functions. They have to be "external" in the C sense,
+but are not part of the PCRE public API. The data for these tables is in the
+pcre_tables.c module. */
+
+#ifdef COMPILE_PCRE8
+
+extern const int            PRIV(utf8_table1)[];
+extern const int            PRIV(utf8_table1_size);
+extern const int            PRIV(utf8_table2)[];
+extern const int            PRIV(utf8_table3)[];
+extern const pcre_uint8     PRIV(utf8_table4)[];
+
+#endif /* COMPILE_PCRE8 */
+
+extern const char           PRIV(utt_names)[];
+extern const ucp_type_table PRIV(utt)[];
+extern const int            PRIV(utt_size);
+
+extern const pcre_uint8     PRIV(default_tables)[];
+
+extern const pcre_uint8     PRIV(OP_lengths)[];
+
+
+/* Internal shared functions. These are functions that are used by more than
+one of the exported public functions. They have to be "external" in the C
+sense, but are not part of the PCRE public API. */
+
+/* String comparison functions. */
+#ifdef COMPILE_PCRE8
+
+#define STRCMP_UC_UC(str1, str2) \
+  strcmp((char *)(str1), (char *)(str2))
+#define STRCMP_UC_C8(str1, str2) \
+  strcmp((char *)(str1), (str2))
+#define STRNCMP_UC_UC(str1, str2, num) \
+  strncmp((char *)(str1), (char *)(str2), (num))
+#define STRNCMP_UC_C8(str1, str2, num) \
+  strncmp((char *)(str1), (str2), (num))
+#define STRLEN_UC(str) strlen((const char *)str)
+
+#else
+
+extern int               PRIV(strcmp_uc_uc)(const pcre_uchar *,
+                           const pcre_uchar *);
+extern int               PRIV(strcmp_uc_c8)(const pcre_uchar *,
+                           const char *);
+extern int               PRIV(strncmp_uc_uc)(const pcre_uchar *,
+                           const pcre_uchar *, unsigned int num);
+extern int               PRIV(strncmp_uc_c8)(const pcre_uchar *,
+                           const char *, unsigned int num);
+extern unsigned int      PRIV(strlen_uc)(const pcre_uchar *str);
+
+#define STRCMP_UC_UC(str1, str2) \
+  PRIV(strcmp_uc_uc)((str1), (str2))
+#define STRCMP_UC_C8(str1, str2) \
+  PRIV(strcmp_uc_c8)((str1), (str2))
+#define STRNCMP_UC_UC(str1, str2, num) \
+  PRIV(strncmp_uc_uc)((str1), (str2), (num))
+#define STRNCMP_UC_C8(str1, str2, num) \
+  PRIV(strncmp_uc_c8)((str1), (str2), (num))
+#define STRLEN_UC(str) PRIV(strlen_uc)(str)
+
+#endif /* COMPILE_PCRE8 */
+
+extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
+extern BOOL              PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
+                           int *, BOOL);
+extern int               PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
+extern int               PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
+extern BOOL              PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
+                           int *, BOOL);
+extern BOOL              PRIV(xclass)(int, const pcre_uchar *, BOOL);
+
+#ifdef SUPPORT_JIT
+extern void              PRIV(jit_compile)(const REAL_PCRE *,
+                           PUBL(extra) *, int);
+extern int               PRIV(jit_exec)(const REAL_PCRE *, const PUBL(extra) *,
+                           const pcre_uchar *, int, int, int, int *, int);
+extern void              PRIV(jit_free)(void *);
+extern int               PRIV(jit_get_size)(void *);
+extern const char*       PRIV(jit_get_target)(void);
+#endif
+
+/* Unicode character database (UCD) */
+
+typedef struct {
+  pcre_uint8 script;
+  pcre_uint8 chartype;
+  pcre_int32 other_case;
+} ucd_record;
+
+extern const ucd_record  PRIV(ucd_records)[];
+extern const pcre_uint8  PRIV(ucd_stage1)[];
+extern const pcre_uint16 PRIV(ucd_stage2)[];
+extern const int         PRIV(ucp_gentype)[];
+#ifdef SUPPORT_JIT
+extern const int         PRIV(ucp_typerange)[];
+#endif
+
+#ifdef SUPPORT_UCP
+/* UCD access macros */
+
+#define UCD_BLOCK_SIZE 128
+#define GET_UCD(ch) (PRIV(ucd_records) + \
+        PRIV(ucd_stage2)[PRIV(ucd_stage1)[(ch) / UCD_BLOCK_SIZE] * \
+        UCD_BLOCK_SIZE + (ch) % UCD_BLOCK_SIZE])
+
+#define UCD_CHARTYPE(ch)  GET_UCD(ch)->chartype
+#define UCD_SCRIPT(ch)    GET_UCD(ch)->script
+#define UCD_CATEGORY(ch)  PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
+#define UCD_OTHERCASE(ch) (ch + GET_UCD(ch)->other_case)
+
+#endif /* SUPPORT_UCP */
+
+#endif
+
+/* End of pcre_internal.h */
diff --git a/8.31/pcre_jit_compile.c b/8.31/pcre_jit_compile.c
new file mode 100644
index 0000000..c910b92
--- /dev/null
+++ b/8.31/pcre_jit_compile.c
@@ -0,0 +1,7454 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+  The machine code generator part (this module) was written by Zoltan Herczeg
+                      Copyright (c) 2010-2012
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+#ifdef SUPPORT_JIT
+
+/* All-in-one: Since we use the JIT compiler only from here,
+we just include it. This way we don't need to touch the build
+system files. */
+
+#define SLJIT_MALLOC(size) (PUBL(malloc))(size)
+#define SLJIT_FREE(ptr) (PUBL(free))(ptr)
+#define SLJIT_CONFIG_AUTO 1
+#define SLJIT_CONFIG_STATIC 1
+#define SLJIT_VERBOSE 0
+#define SLJIT_DEBUG 0
+
+#include "sljit/sljitLir.c"
+
+#if defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED
+#error Unsupported architecture
+#endif
+
+/* Allocate memory on the stack. Fast, but limited size. */
+#define LOCAL_SPACE_SIZE 32768
+
+#define STACK_GROWTH_RATE 8192
+
+/* Enable to check that the allocation could destroy temporaries. */
+#if defined SLJIT_DEBUG && SLJIT_DEBUG
+#define DESTROY_REGISTERS 1
+#endif
+
+/*
+Short summary about the backtracking mechanism empolyed by the jit code generator:
+
+The code generator follows the recursive nature of the PERL compatible regular
+expressions. The basic blocks of regular expressions are condition checkers
+whose execute different commands depending on the result of the condition check.
+The relationship between the operators can be horizontal (concatenation) and
+vertical (sub-expression) (See struct backtrack_common for more details).
+
+  'ab' - 'a' and 'b' regexps are concatenated
+  'a+' - 'a' is the sub-expression of the '+' operator
+
+The condition checkers are boolean (true/false) checkers. Machine code is generated
+for the checker itself and for the actions depending on the result of the checker.
+The 'true' case is called as the try path (expected path), and the other is called as
+the 'backtrack' path. Branch instructions are expesive for all CPUs, so we avoid taken
+branches on the try path.
+
+ Greedy star operator (*) :
+   Try path: match happens.
+   Backtrack path: match failed.
+ Non-greedy star operator (*?) :
+   Try path: no need to perform a match.
+   Backtrack path: match is required.
+
+The following example shows how the code generated for a capturing bracket
+with two alternatives. Let A, B, C, D are arbirary regular expressions, and
+we have the following regular expression:
+
+   A(B|C)D
+
+The generated code will be the following:
+
+ A try path
+ '(' try path (pushing arguments to the stack)
+ B try path
+ ')' try path (pushing arguments to the stack)
+ D try path
+ return with successful match
+
+ D backtrack path
+ ')' backtrack path (If we arrived from "C" jump to the backtrack of "C")
+ B backtrack path
+ C expected path
+ jump to D try path
+ C backtrack path
+ A backtrack path
+
+ Notice, that the order of backtrack code paths are the opposite of the fast
+ code paths. In this way the topmost value on the stack is always belong
+ to the current backtrack code path. The backtrack path must check
+ whether there is a next alternative. If so, it needs to jump back to
+ the try path eventually. Otherwise it needs to clear out its own stack
+ frame and continue the execution on the backtrack code paths.
+*/
+
+/*
+Saved stack frames:
+
+Atomic blocks and asserts require reloading the values of local variables
+when the backtrack mechanism performed. Because of OP_RECURSE, the locals
+are not necessarly known in compile time, thus we need a dynamic restore
+mechanism.
+
+The stack frames are stored in a chain list, and have the following format:
+([ capturing bracket offset ][ start value ][ end value ])+ ... [ 0 ] [ previous head ]
+
+Thus we can restore the locals to a particular point in the stack.
+*/
+
+typedef struct jit_arguments {
+  /* Pointers first. */
+  struct sljit_stack *stack;
+  const pcre_uchar *str;
+  const pcre_uchar *begin;
+  const pcre_uchar *end;
+  int *offsets;
+  pcre_uchar *uchar_ptr;
+  pcre_uchar *mark_ptr;
+  /* Everything else after. */
+  int offsetcount;
+  int calllimit;
+  pcre_uint8 notbol;
+  pcre_uint8 noteol;
+  pcre_uint8 notempty;
+  pcre_uint8 notempty_atstart;
+} jit_arguments;
+
+typedef struct executable_functions {
+  void *executable_funcs[JIT_NUMBER_OF_COMPILE_MODES];
+  PUBL(jit_callback) callback;
+  void *userdata;
+  sljit_uw executable_sizes[JIT_NUMBER_OF_COMPILE_MODES];
+} executable_functions;
+
+typedef struct jump_list {
+  struct sljit_jump *jump;
+  struct jump_list *next;
+} jump_list;
+
+enum stub_types { stack_alloc };
+
+typedef struct stub_list {
+  enum stub_types type;
+  int data;
+  struct sljit_jump *start;
+  struct sljit_label *leave;
+  struct stub_list *next;
+} stub_list;
+
+typedef int (SLJIT_CALL *jit_function)(jit_arguments *args);
+
+/* The following structure is the key data type for the recursive
+code generator. It is allocated by compile_trypath, and contains
+the aguments for compile_backtrackpath. Must be the first member
+of its descendants. */
+typedef struct backtrack_common {
+  /* Concatenation stack. */
+  struct backtrack_common *prev;
+  jump_list *nextbacktracks;
+  /* Internal stack (for component operators). */
+  struct backtrack_common *top;
+  jump_list *topbacktracks;
+  /* Opcode pointer. */
+  pcre_uchar *cc;
+} backtrack_common;
+
+typedef struct assert_backtrack {
+  backtrack_common common;
+  jump_list *condfailed;
+  /* Less than 0 (-1) if a frame is not needed. */
+  int framesize;
+  /* Points to our private memory word on the stack. */
+  int localptr;
+  /* For iterators. */
+  struct sljit_label *trypath;
+} assert_backtrack;
+
+typedef struct bracket_backtrack {
+  backtrack_common common;
+  /* Where to coninue if an alternative is successfully matched. */
+  struct sljit_label *alttrypath;
+  /* For rmin and rmax iterators. */
+  struct sljit_label *recursivetrypath;
+  /* For greedy ? operator. */
+  struct sljit_label *zerotrypath;
+  /* Contains the branches of a failed condition. */
+  union {
+    /* Both for OP_COND, OP_SCOND. */
+    jump_list *condfailed;
+    assert_backtrack *assert;
+    /* For OP_ONCE. -1 if not needed. */
+    int framesize;
+  } u;
+  /* Points to our private memory word on the stack. */
+  int localptr;
+} bracket_backtrack;
+
+typedef struct bracketpos_backtrack {
+  backtrack_common common;
+  /* Points to our private memory word on the stack. */
+  int localptr;
+  /* Reverting stack is needed. */
+  int framesize;
+  /* Allocated stack size. */
+  int stacksize;
+} bracketpos_backtrack;
+
+typedef struct braminzero_backtrack {
+  backtrack_common common;
+  struct sljit_label *trypath;
+} braminzero_backtrack;
+
+typedef struct iterator_backtrack {
+  backtrack_common common;
+  /* Next iteration. */
+  struct sljit_label *trypath;
+} iterator_backtrack;
+
+typedef struct recurse_entry {
+  struct recurse_entry *next;
+  /* Contains the function entry. */
+  struct sljit_label *entry;
+  /* Collects the calls until the function is not created. */
+  jump_list *calls;
+  /* Points to the starting opcode. */
+  int start;
+} recurse_entry;
+
+typedef struct recurse_backtrack {
+  backtrack_common common;
+} recurse_backtrack;
+
+typedef struct compiler_common {
+  struct sljit_compiler *compiler;
+  pcre_uchar *start;
+
+  /* Opcode local area direct map. */
+  int *localptrs;
+  int cbraptr;
+  /* OVector starting point. Must be divisible by 2. */
+  int ovector_start;
+  /* Last known position of the requested byte. */
+  int req_char_ptr;
+  /* Head of the last recursion. */
+  int recursive_head;
+  /* First inspected character for partial matching. */
+  int start_used_ptr;
+  /* Starting pointer for partial soft matches. */
+  int hit_start;
+  /* End pointer of the first line. */
+  int first_line_end;
+  /* Points to the marked string. */
+  int mark_ptr;
+
+  /* Other  */
+  const pcre_uint8 *fcc;
+  sljit_w lcc;
+  int mode;
+  int nltype;
+  int newline;
+  int bsr_nltype;
+  int endonly;
+  BOOL has_set_som;
+  sljit_w ctypes;
+  sljit_uw name_table;
+  sljit_w name_count;
+  sljit_w name_entry_size;
+
+  /* Labels and jump lists. */
+  struct sljit_label *partialmatchlabel;
+  struct sljit_label *leavelabel;
+  struct sljit_label *acceptlabel;
+  stub_list *stubs;
+  recurse_entry *entries;
+  recurse_entry *currententry;
+  jump_list *partialmatch;
+  jump_list *leave;
+  jump_list *accept;
+  jump_list *calllimit;
+  jump_list *stackalloc;
+  jump_list *revertframes;
+  jump_list *wordboundary;
+  jump_list *anynewline;
+  jump_list *hspace;
+  jump_list *vspace;
+  jump_list *casefulcmp;
+  jump_list *caselesscmp;
+  BOOL jscript_compat;
+#ifdef SUPPORT_UTF
+  BOOL utf;
+#ifdef SUPPORT_UCP
+  BOOL use_ucp;
+#endif
+  jump_list *utfreadchar;
+#ifdef COMPILE_PCRE8
+  jump_list *utfreadtype8;
+#endif
+#endif /* SUPPORT_UTF */
+#ifdef SUPPORT_UCP
+  jump_list *getucd;
+#endif
+} compiler_common;
+
+/* For byte_sequence_compare. */
+
+typedef struct compare_context {
+  int length;
+  int sourcereg;
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+  int ucharptr;
+  union {
+    sljit_i asint;
+    sljit_uh asushort;
+#ifdef COMPILE_PCRE8
+    sljit_ub asbyte;
+    sljit_ub asuchars[4];
+#else
+#ifdef COMPILE_PCRE16
+    sljit_uh asuchars[2];
+#endif
+#endif
+  } c;
+  union {
+    sljit_i asint;
+    sljit_uh asushort;
+#ifdef COMPILE_PCRE8
+    sljit_ub asbyte;
+    sljit_ub asuchars[4];
+#else
+#ifdef COMPILE_PCRE16
+    sljit_uh asuchars[2];
+#endif
+#endif
+  } oc;
+#endif
+} compare_context;
+
+enum {
+  frame_end = 0,
+  frame_setstrbegin = -1,
+  frame_setmark = -2
+};
+
+/* Undefine sljit macros. */
+#undef CMP
+
+/* Used for accessing the elements of the stack. */
+#define STACK(i)      ((-(i) - 1) * (int)sizeof(sljit_w))
+
+#define TMP1          SLJIT_TEMPORARY_REG1
+#define TMP2          SLJIT_TEMPORARY_REG3
+#define TMP3          SLJIT_TEMPORARY_EREG2
+#define STR_PTR       SLJIT_SAVED_REG1
+#define STR_END       SLJIT_SAVED_REG2
+#define STACK_TOP     SLJIT_TEMPORARY_REG2
+#define STACK_LIMIT   SLJIT_SAVED_REG3
+#define ARGUMENTS     SLJIT_SAVED_EREG1
+#define CALL_COUNT    SLJIT_SAVED_EREG2
+#define RETURN_ADDR   SLJIT_TEMPORARY_EREG1
+
+/* Locals layout. */
+/* These two locals can be used by the current opcode. */
+#define LOCALS0          (0 * sizeof(sljit_w))
+#define LOCALS1          (1 * sizeof(sljit_w))
+/* Two local variables for possessive quantifiers (char1 cannot use them). */
+#define POSSESSIVE0      (2 * sizeof(sljit_w))
+#define POSSESSIVE1      (3 * sizeof(sljit_w))
+/* Max limit of recursions. */
+#define CALL_LIMIT       (4 * sizeof(sljit_w))
+/* The output vector is stored on the stack, and contains pointers
+to characters. The vector data is divided into two groups: the first
+group contains the start / end character pointers, and the second is
+the start pointers when the end of the capturing group has not yet reached. */
+#define OVECTOR_START    (common->ovector_start)
+#define OVECTOR(i)       (OVECTOR_START + (i) * sizeof(sljit_w))
+#define OVECTOR_PRIV(i)  (common->cbraptr + (i) * sizeof(sljit_w))
+#define PRIV_DATA(cc)    (common->localptrs[(cc) - common->start])
+
+#ifdef COMPILE_PCRE8
+#define MOV_UCHAR  SLJIT_MOV_UB
+#define MOVU_UCHAR SLJIT_MOVU_UB
+#else
+#ifdef COMPILE_PCRE16
+#define MOV_UCHAR  SLJIT_MOV_UH
+#define MOVU_UCHAR SLJIT_MOVU_UH
+#else
+#error Unsupported compiling mode
+#endif
+#endif
+
+/* Shortcuts. */
+#define DEFINE_COMPILER \
+  struct sljit_compiler *compiler = common->compiler
+#define OP1(op, dst, dstw, src, srcw) \
+  sljit_emit_op1(compiler, (op), (dst), (dstw), (src), (srcw))
+#define OP2(op, dst, dstw, src1, src1w, src2, src2w) \
+  sljit_emit_op2(compiler, (op), (dst), (dstw), (src1), (src1w), (src2), (src2w))
+#define LABEL() \
+  sljit_emit_label(compiler)
+#define JUMP(type) \
+  sljit_emit_jump(compiler, (type))
+#define JUMPTO(type, label) \
+  sljit_set_label(sljit_emit_jump(compiler, (type)), (label))
+#define JUMPHERE(jump) \
+  sljit_set_label((jump), sljit_emit_label(compiler))
+#define CMP(type, src1, src1w, src2, src2w) \
+  sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w))
+#define CMPTO(type, src1, src1w, src2, src2w, label) \
+  sljit_set_label(sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w)), (label))
+#define COND_VALUE(op, dst, dstw, type) \
+  sljit_emit_cond_value(compiler, (op), (dst), (dstw), (type))
+#define GET_LOCAL_BASE(dst, dstw, offset) \
+  sljit_get_local_base(compiler, (dst), (dstw), (offset))
+
+static pcre_uchar* bracketend(pcre_uchar* cc)
+{
+SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND));
+do cc += GET(cc, 1); while (*cc == OP_ALT);
+SLJIT_ASSERT(*cc >= OP_KET && *cc <= OP_KETRPOS);
+cc += 1 + LINK_SIZE;
+return cc;
+}
+
+/* Functions whose might need modification for all new supported opcodes:
+ next_opcode
+ get_localspace
+ set_localptrs
+ get_framesize
+ init_frame
+ get_localsize
+ copy_locals
+ compile_trypath
+ compile_backtrackpath
+*/
+
+static pcre_uchar *next_opcode(compiler_common *common, pcre_uchar *cc)
+{
+SLJIT_UNUSED_ARG(common);
+switch(*cc)
+  {
+  case OP_SOD:
+  case OP_SOM:
+  case OP_SET_SOM:
+  case OP_NOT_WORD_BOUNDARY:
+  case OP_WORD_BOUNDARY:
+  case OP_NOT_DIGIT:
+  case OP_DIGIT:
+  case OP_NOT_WHITESPACE:
+  case OP_WHITESPACE:
+  case OP_NOT_WORDCHAR:
+  case OP_WORDCHAR:
+  case OP_ANY:
+  case OP_ALLANY:
+  case OP_ANYNL:
+  case OP_NOT_HSPACE:
+  case OP_HSPACE:
+  case OP_NOT_VSPACE:
+  case OP_VSPACE:
+  case OP_EXTUNI:
+  case OP_EODN:
+  case OP_EOD:
+  case OP_CIRC:
+  case OP_CIRCM:
+  case OP_DOLL:
+  case OP_DOLLM:
+  case OP_TYPESTAR:
+  case OP_TYPEMINSTAR:
+  case OP_TYPEPLUS:
+  case OP_TYPEMINPLUS:
+  case OP_TYPEQUERY:
+  case OP_TYPEMINQUERY:
+  case OP_TYPEPOSSTAR:
+  case OP_TYPEPOSPLUS:
+  case OP_TYPEPOSQUERY:
+  case OP_CRSTAR:
+  case OP_CRMINSTAR:
+  case OP_CRPLUS:
+  case OP_CRMINPLUS:
+  case OP_CRQUERY:
+  case OP_CRMINQUERY:
+  case OP_DEF:
+  case OP_BRAZERO:
+  case OP_BRAMINZERO:
+  case OP_BRAPOSZERO:
+  case OP_COMMIT:
+  case OP_FAIL:
+  case OP_ACCEPT:
+  case OP_ASSERT_ACCEPT:
+  case OP_SKIPZERO:
+  return cc + 1;
+
+  case OP_ANYBYTE:
+#ifdef SUPPORT_UTF
+  if (common->utf) return NULL;
+#endif
+  return cc + 1;
+
+  case OP_CHAR:
+  case OP_CHARI:
+  case OP_NOT:
+  case OP_NOTI:
+  case OP_STAR:
+  case OP_MINSTAR:
+  case OP_PLUS:
+  case OP_MINPLUS:
+  case OP_QUERY:
+  case OP_MINQUERY:
+  case OP_POSSTAR:
+  case OP_POSPLUS:
+  case OP_POSQUERY:
+  case OP_STARI:
+  case OP_MINSTARI:
+  case OP_PLUSI:
+  case OP_MINPLUSI:
+  case OP_QUERYI:
+  case OP_MINQUERYI:
+  case OP_POSSTARI:
+  case OP_POSPLUSI:
+  case OP_POSQUERYI:
+  case OP_NOTSTAR:
+  case OP_NOTMINSTAR:
+  case OP_NOTPLUS:
+  case OP_NOTMINPLUS:
+  case OP_NOTQUERY:
+  case OP_NOTMINQUERY:
+  case OP_NOTPOSSTAR:
+  case OP_NOTPOSPLUS:
+  case OP_NOTPOSQUERY:
+  case OP_NOTSTARI:
+  case OP_NOTMINSTARI:
+  case OP_NOTPLUSI:
+  case OP_NOTMINPLUSI:
+  case OP_NOTQUERYI:
+  case OP_NOTMINQUERYI:
+  case OP_NOTPOSSTARI:
+  case OP_NOTPOSPLUSI:
+  case OP_NOTPOSQUERYI:
+  cc += 2;
+#ifdef SUPPORT_UTF
+  if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+  return cc;
+
+  case OP_UPTO:
+  case OP_MINUPTO:
+  case OP_EXACT:
+  case OP_POSUPTO:
+  case OP_UPTOI:
+  case OP_MINUPTOI:
+  case OP_EXACTI:
+  case OP_POSUPTOI:
+  case OP_NOTUPTO:
+  case OP_NOTMINUPTO:
+  case OP_NOTEXACT:
+  case OP_NOTPOSUPTO:
+  case OP_NOTUPTOI:
+  case OP_NOTMINUPTOI:
+  case OP_NOTEXACTI:
+  case OP_NOTPOSUPTOI:
+  cc += 2 + IMM2_SIZE;
+#ifdef SUPPORT_UTF
+  if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+  return cc;
+
+  case OP_NOTPROP:
+  case OP_PROP:
+  return cc + 1 + 2;
+
+  case OP_TYPEUPTO:
+  case OP_TYPEMINUPTO:
+  case OP_TYPEEXACT:
+  case OP_TYPEPOSUPTO:
+  case OP_REF:
+  case OP_REFI:
+  case OP_CREF:
+  case OP_NCREF:
+  case OP_RREF:
+  case OP_NRREF:
+  case OP_CLOSE:
+  cc += 1 + IMM2_SIZE;
+  return cc;
+
+  case OP_CRRANGE:
+  case OP_CRMINRANGE:
+  return cc + 1 + 2 * IMM2_SIZE;
+
+  case OP_CLASS:
+  case OP_NCLASS:
+  return cc + 1 + 32 / sizeof(pcre_uchar);
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+  case OP_XCLASS:
+  return cc + GET(cc, 1);
+#endif
+
+  case OP_RECURSE:
+  case OP_ASSERT:
+  case OP_ASSERT_NOT:
+  case OP_ASSERTBACK:
+  case OP_ASSERTBACK_NOT:
+  case OP_REVERSE:
+  case OP_ONCE:
+  case OP_ONCE_NC:
+  case OP_BRA:
+  case OP_BRAPOS:
+  case OP_COND:
+  case OP_SBRA:
+  case OP_SBRAPOS:
+  case OP_SCOND:
+  case OP_ALT:
+  case OP_KET:
+  case OP_KETRMAX:
+  case OP_KETRMIN:
+  case OP_KETRPOS:
+  return cc + 1 + LINK_SIZE;
+
+  case OP_CBRA:
+  case OP_CBRAPOS:
+  case OP_SCBRA:
+  case OP_SCBRAPOS:
+  return cc + 1 + LINK_SIZE + IMM2_SIZE;
+
+  case OP_MARK:
+  return cc + 1 + 2 + cc[1];
+
+  default:
+  return NULL;
+  }
+}
+
+static int get_localspace(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend)
+{
+int localspace = 0;
+pcre_uchar *alternative;
+/* Calculate important variables (like stack size) and checks whether all opcodes are supported. */
+while (cc < ccend)
+  {
+  switch(*cc)
+    {
+    case OP_SET_SOM:
+    common->has_set_som = TRUE;
+    cc += 1;
+    break;
+
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    case OP_BRAPOS:
+    case OP_SBRA:
+    case OP_SBRAPOS:
+    case OP_SCOND:
+    localspace += sizeof(sljit_w);
+    cc += 1 + LINK_SIZE;
+    break;
+
+    case OP_CBRAPOS:
+    case OP_SCBRAPOS:
+    localspace += sizeof(sljit_w);
+    cc += 1 + LINK_SIZE + IMM2_SIZE;
+    break;
+
+    case OP_COND:
+    /* Might be a hidden SCOND. */
+    alternative = cc + GET(cc, 1);
+    if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
+      localspace += sizeof(sljit_w);
+    cc += 1 + LINK_SIZE;
+    break;
+
+    case OP_RECURSE:
+    /* Set its value only once. */
+    if (common->recursive_head == 0)
+      {
+      common->recursive_head = common->ovector_start;
+      common->ovector_start += sizeof(sljit_w);
+      }
+    cc += 1 + LINK_SIZE;
+    break;
+
+    case OP_MARK:
+    if (common->mark_ptr == 0)
+      {
+      common->mark_ptr = common->ovector_start;
+      common->ovector_start += sizeof(sljit_w);
+      }
+    cc += 1 + 2 + cc[1];
+    break;
+
+    default:
+    cc = next_opcode(common, cc);
+    if (cc == NULL)
+      return -1;
+    break;
+    }
+  }
+return localspace;
+}
+
+static void set_localptrs(compiler_common *common, int localptr, pcre_uchar *ccend)
+{
+pcre_uchar *cc = common->start;
+pcre_uchar *alternative;
+while (cc < ccend)
+  {
+  switch(*cc)
+    {
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    case OP_BRAPOS:
+    case OP_SBRA:
+    case OP_SBRAPOS:
+    case OP_SCOND:
+    common->localptrs[cc - common->start] = localptr;
+    localptr += sizeof(sljit_w);
+    cc += 1 + LINK_SIZE;
+    break;
+
+    case OP_CBRAPOS:
+    case OP_SCBRAPOS:
+    common->localptrs[cc - common->start] = localptr;
+    localptr += sizeof(sljit_w);
+    cc += 1 + LINK_SIZE + IMM2_SIZE;
+    break;
+
+    case OP_COND:
+    /* Might be a hidden SCOND. */
+    alternative = cc + GET(cc, 1);
+    if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
+      {
+      common->localptrs[cc - common->start] = localptr;
+      localptr += sizeof(sljit_w);
+      }
+    cc += 1 + LINK_SIZE;
+    break;
+
+    default:
+    cc = next_opcode(common, cc);
+    SLJIT_ASSERT(cc != NULL);
+    break;
+    }
+  }
+}
+
+/* Returns with -1 if no need for frame. */
+static int get_framesize(compiler_common *common, pcre_uchar *cc, BOOL recursive)
+{
+pcre_uchar *ccend = bracketend(cc);
+int length = 0;
+BOOL possessive = FALSE;
+BOOL setsom_found = recursive;
+BOOL setmark_found = recursive;
+
+if (!recursive && (*cc == OP_CBRAPOS || *cc == OP_SCBRAPOS))
+  {
+  length = 3;
+  possessive = TRUE;
+  }
+
+cc = next_opcode(common, cc);
+SLJIT_ASSERT(cc != NULL);
+while (cc < ccend)
+  switch(*cc)
+    {
+    case OP_SET_SOM:
+    SLJIT_ASSERT(common->has_set_som);
+    if (!setsom_found)
+      {
+      length += 2;
+      setsom_found = TRUE;
+      }
+    cc += 1;
+    break;
+
+    case OP_MARK:
+    SLJIT_ASSERT(common->mark_ptr != 0);
+    if (!setmark_found)
+      {
+      length += 2;
+      setmark_found = TRUE;
+      }
+    cc += 1 + 2 + cc[1];
+    break;
+
+    case OP_RECURSE:
+    if (common->has_set_som && !setsom_found)
+      {
+      length += 2;
+      setsom_found = TRUE;
+      }
+    if (common->mark_ptr != 0 && !setmark_found)
+      {
+      length += 2;
+      setmark_found = TRUE;
+      }
+    cc += 1 + LINK_SIZE;
+    break;
+
+    case OP_CBRA:
+    case OP_CBRAPOS:
+    case OP_SCBRA:
+    case OP_SCBRAPOS:
+    length += 3;
+    cc += 1 + LINK_SIZE + IMM2_SIZE;
+    break;
+
+    default:
+    cc = next_opcode(common, cc);
+    SLJIT_ASSERT(cc != NULL);
+    break;
+    }
+
+/* Possessive quantifiers can use a special case. */
+if (SLJIT_UNLIKELY(possessive) && length == 3)
+  return -1;
+
+if (length > 0)
+  return length + 1;
+return -1;
+}
+
+static void init_frame(compiler_common *common, pcre_uchar *cc, int stackpos, int stacktop, BOOL recursive)
+{
+DEFINE_COMPILER;
+pcre_uchar *ccend = bracketend(cc);
+BOOL setsom_found = recursive;
+BOOL setmark_found = recursive;
+int offset;
+
+/* >= 1 + shortest item size (2) */
+SLJIT_UNUSED_ARG(stacktop);
+SLJIT_ASSERT(stackpos >= stacktop + 2);
+
+stackpos = STACK(stackpos);
+if (recursive || (*cc != OP_CBRAPOS && *cc != OP_SCBRAPOS))
+  cc = next_opcode(common, cc);
+SLJIT_ASSERT(cc != NULL);
+while (cc < ccend)
+  switch(*cc)
+    {
+    case OP_SET_SOM:
+    SLJIT_ASSERT(common->has_set_som);
+    if (!setsom_found)
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_setstrbegin);
+      stackpos += (int)sizeof(sljit_w);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+      stackpos += (int)sizeof(sljit_w);
+      setsom_found = TRUE;
+      }
+    cc += 1;
+    break;
+
+    case OP_MARK:
+    SLJIT_ASSERT(common->mark_ptr != 0);
+    if (!setmark_found)
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_setmark);
+      stackpos += (int)sizeof(sljit_w);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+      stackpos += (int)sizeof(sljit_w);
+      setmark_found = TRUE;
+      }
+    cc += 1 + 2 + cc[1];
+    break;
+
+    case OP_RECURSE:
+    if (common->has_set_som && !setsom_found)
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_setstrbegin);
+      stackpos += (int)sizeof(sljit_w);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+      stackpos += (int)sizeof(sljit_w);
+      setsom_found = TRUE;
+      }
+    if (common->mark_ptr != 0 && !setmark_found)
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_setmark);
+      stackpos += (int)sizeof(sljit_w);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+      stackpos += (int)sizeof(sljit_w);
+      setmark_found = TRUE;
+      }
+    cc += 1 + LINK_SIZE;
+    break;
+
+    case OP_CBRA:
+    case OP_CBRAPOS:
+    case OP_SCBRA:
+    case OP_SCBRAPOS:
+    offset = (GET2(cc, 1 + LINK_SIZE)) << 1;
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, OVECTOR(offset));
+    stackpos += (int)sizeof(sljit_w);
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
+    stackpos += (int)sizeof(sljit_w);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP2, 0);
+    stackpos += (int)sizeof(sljit_w);
+
+    cc += 1 + LINK_SIZE + IMM2_SIZE;
+    break;
+
+    default:
+    cc = next_opcode(common, cc);
+    SLJIT_ASSERT(cc != NULL);
+    break;
+    }
+
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, frame_end);
+SLJIT_ASSERT(stackpos == STACK(stacktop));
+}
+
+static SLJIT_INLINE int get_localsize(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend)
+{
+int localsize = 2;
+pcre_uchar *alternative;
+/* Calculate the sum of the local variables. */
+while (cc < ccend)
+  {
+  switch(*cc)
+    {
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    case OP_BRAPOS:
+    case OP_SBRA:
+    case OP_SBRAPOS:
+    case OP_SCOND:
+    localsize++;
+    cc += 1 + LINK_SIZE;
+    break;
+
+    case OP_CBRA:
+    case OP_SCBRA:
+    localsize++;
+    cc += 1 + LINK_SIZE + IMM2_SIZE;
+    break;
+
+    case OP_CBRAPOS:
+    case OP_SCBRAPOS:
+    localsize += 2;
+    cc += 1 + LINK_SIZE + IMM2_SIZE;
+    break;
+
+    case OP_COND:
+    /* Might be a hidden SCOND. */
+    alternative = cc + GET(cc, 1);
+    if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
+      localsize++;
+    cc += 1 + LINK_SIZE;
+    break;
+
+    default:
+    cc = next_opcode(common, cc);
+    SLJIT_ASSERT(cc != NULL);
+    break;
+    }
+  }
+SLJIT_ASSERT(cc == ccend);
+return localsize;
+}
+
+static void copy_locals(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend,
+  BOOL save, int stackptr, int stacktop)
+{
+DEFINE_COMPILER;
+int srcw[2];
+int count;
+BOOL tmp1next = TRUE;
+BOOL tmp1empty = TRUE;
+BOOL tmp2empty = TRUE;
+pcre_uchar *alternative;
+enum {
+  start,
+  loop,
+  end
+} status;
+
+status = save ? start : loop;
+stackptr = STACK(stackptr - 2);
+stacktop = STACK(stacktop - 1);
+
+if (!save)
+  {
+  stackptr += sizeof(sljit_w);
+  if (stackptr < stacktop)
+    {
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
+    stackptr += sizeof(sljit_w);
+    tmp1empty = FALSE;
+    }
+  if (stackptr < stacktop)
+    {
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);
+    stackptr += sizeof(sljit_w);
+    tmp2empty = FALSE;
+    }
+  /* The tmp1next must be TRUE in either way. */
+  }
+
+while (status != end)
+  {
+  count = 0;
+  switch(status)
+    {
+    case start:
+    SLJIT_ASSERT(save && common->recursive_head != 0);
+    count = 1;
+    srcw[0] = common->recursive_head;
+    status = loop;
+    break;
+
+    case loop:
+    if (cc >= ccend)
+      {
+      status = end;
+      break;
+      }
+
+    switch(*cc)
+      {
+      case OP_ASSERT:
+      case OP_ASSERT_NOT:
+      case OP_ASSERTBACK:
+      case OP_ASSERTBACK_NOT:
+      case OP_ONCE:
+      case OP_ONCE_NC:
+      case OP_BRAPOS:
+      case OP_SBRA:
+      case OP_SBRAPOS:
+      case OP_SCOND:
+      count = 1;
+      srcw[0] = PRIV_DATA(cc);
+      SLJIT_ASSERT(srcw[0] != 0);
+      cc += 1 + LINK_SIZE;
+      break;
+
+      case OP_CBRA:
+      case OP_SCBRA:
+      count = 1;
+      srcw[0] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
+      cc += 1 + LINK_SIZE + IMM2_SIZE;
+      break;
+
+      case OP_CBRAPOS:
+      case OP_SCBRAPOS:
+      count = 2;
+      srcw[1] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
+      srcw[0] = PRIV_DATA(cc);
+      SLJIT_ASSERT(srcw[0] != 0);
+      cc += 1 + LINK_SIZE + IMM2_SIZE;
+      break;
+
+      case OP_COND:
+      /* Might be a hidden SCOND. */
+      alternative = cc + GET(cc, 1);
+      if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
+        {
+        count = 1;
+        srcw[0] = PRIV_DATA(cc);
+        SLJIT_ASSERT(srcw[0] != 0);
+        }
+      cc += 1 + LINK_SIZE;
+      break;
+
+      default:
+      cc = next_opcode(common, cc);
+      SLJIT_ASSERT(cc != NULL);
+      break;
+      }
+    break;
+
+    case end:
+    SLJIT_ASSERT_STOP();
+    break;
+    }
+
+  while (count > 0)
+    {
+    count--;
+    if (save)
+      {
+      if (tmp1next)
+        {
+        if (!tmp1empty)
+          {
+          OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
+          stackptr += sizeof(sljit_w);
+          }
+        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count]);
+        tmp1empty = FALSE;
+        tmp1next = FALSE;
+        }
+      else
+        {
+        if (!tmp2empty)
+          {
+          OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
+          stackptr += sizeof(sljit_w);
+          }
+        OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count]);
+        tmp2empty = FALSE;
+        tmp1next = TRUE;
+        }
+      }
+    else
+      {
+      if (tmp1next)
+        {
+        SLJIT_ASSERT(!tmp1empty);
+        OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count], TMP1, 0);
+        tmp1empty = stackptr >= stacktop;
+        if (!tmp1empty)
+          {
+          OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
+          stackptr += sizeof(sljit_w);
+          }
+        tmp1next = FALSE;
+        }
+      else
+        {
+        SLJIT_ASSERT(!tmp2empty);
+        OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), srcw[count], TMP2, 0);
+        tmp2empty = stackptr >= stacktop;
+        if (!tmp2empty)
+          {
+          OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);
+          stackptr += sizeof(sljit_w);
+          }
+        tmp1next = TRUE;
+        }
+      }
+    }
+  }
+
+if (save)
+  {
+  if (tmp1next)
+    {
+    if (!tmp1empty)
+      {
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
+      stackptr += sizeof(sljit_w);
+      }
+    if (!tmp2empty)
+      {
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
+      stackptr += sizeof(sljit_w);
+      }
+    }
+  else
+    {
+    if (!tmp2empty)
+      {
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
+      stackptr += sizeof(sljit_w);
+      }
+    if (!tmp1empty)
+      {
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
+      stackptr += sizeof(sljit_w);
+      }
+    }
+  }
+SLJIT_ASSERT(cc == ccend && stackptr == stacktop && (save || (tmp1empty && tmp2empty)));
+}
+
+static SLJIT_INLINE BOOL ispowerof2(unsigned int value)
+{
+return (value & (value - 1)) == 0;
+}
+
+static SLJIT_INLINE void set_jumps(jump_list *list, struct sljit_label *label)
+{
+while (list)
+  {
+  /* sljit_set_label is clever enough to do nothing
+  if either the jump or the label is NULL */
+  sljit_set_label(list->jump, label);
+  list = list->next;
+  }
+}
+
+static SLJIT_INLINE void add_jump(struct sljit_compiler *compiler, jump_list **list, struct sljit_jump* jump)
+{
+jump_list *list_item = sljit_alloc_memory(compiler, sizeof(jump_list));
+if (list_item)
+  {
+  list_item->next = *list;
+  list_item->jump = jump;
+  *list = list_item;
+  }
+}
+
+static void add_stub(compiler_common *common, enum stub_types type, int data, struct sljit_jump *start)
+{
+DEFINE_COMPILER;
+stub_list* list_item = sljit_alloc_memory(compiler, sizeof(stub_list));
+
+if (list_item)
+  {
+  list_item->type = type;
+  list_item->data = data;
+  list_item->start = start;
+  list_item->leave = LABEL();
+  list_item->next = common->stubs;
+  common->stubs = list_item;
+  }
+}
+
+static void flush_stubs(compiler_common *common)
+{
+DEFINE_COMPILER;
+stub_list* list_item = common->stubs;
+
+while (list_item)
+  {
+  JUMPHERE(list_item->start);
+  switch(list_item->type)
+    {
+    case stack_alloc:
+    add_jump(compiler, &common->stackalloc, JUMP(SLJIT_FAST_CALL));
+    break;
+    }
+  JUMPTO(SLJIT_JUMP, list_item->leave);
+  list_item = list_item->next;
+  }
+common->stubs = NULL;
+}
+
+static SLJIT_INLINE void decrease_call_count(compiler_common *common)
+{
+DEFINE_COMPILER;
+
+OP2(SLJIT_SUB | SLJIT_SET_E, CALL_COUNT, 0, CALL_COUNT, 0, SLJIT_IMM, 1);
+add_jump(compiler, &common->calllimit, JUMP(SLJIT_C_ZERO));
+}
+
+static SLJIT_INLINE void allocate_stack(compiler_common *common, int size)
+{
+/* May destroy all locals and registers except TMP2. */
+DEFINE_COMPILER;
+
+OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_w));
+#ifdef DESTROY_REGISTERS
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 12345);
+OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
+OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, TMP1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP1, 0);
+#endif
+add_stub(common, stack_alloc, 0, CMP(SLJIT_C_GREATER, STACK_TOP, 0, STACK_LIMIT, 0));
+}
+
+static SLJIT_INLINE void free_stack(compiler_common *common, int size)
+{
+DEFINE_COMPILER;
+OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_w));
+}
+
+static SLJIT_INLINE void reset_ovector(compiler_common *common, int length)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+int i;
+/* At this point we can freely use all temporary registers. */
+/* TMP1 returns with begin - 1. */
+OP2(SLJIT_SUB, SLJIT_TEMPORARY_REG1, 0, SLJIT_MEM1(SLJIT_SAVED_REG1), SLJIT_OFFSETOF(jit_arguments, begin), SLJIT_IMM, IN_UCHARS(1));
+if (length < 8)
+  {
+  for (i = 0; i < length; i++)
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(i), SLJIT_TEMPORARY_REG1, 0);
+  }
+else
+  {
+  GET_LOCAL_BASE(SLJIT_TEMPORARY_REG2, 0, OVECTOR_START - sizeof(sljit_w));
+  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, length);
+  loop = LABEL();
+  OP1(SLJIT_MOVU, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), sizeof(sljit_w), SLJIT_TEMPORARY_REG1, 0);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_TEMPORARY_REG3, 0, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, 1);
+  JUMPTO(SLJIT_C_NOT_ZERO, loop);
+  }
+}
+
+static SLJIT_INLINE void copy_ovector(compiler_common *common, int topbracket)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+struct sljit_jump *earlyexit;
+
+/* At this point we can freely use all registers. */
+OP1(SLJIT_MOV, SLJIT_SAVED_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1));
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1), STR_PTR, 0);
+
+OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG1, 0, ARGUMENTS, 0);
+if (common->mark_ptr != 0)
+  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+OP1(SLJIT_MOV_SI, SLJIT_TEMPORARY_REG2, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), SLJIT_OFFSETOF(jit_arguments, offsetcount));
+if (common->mark_ptr != 0)
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), SLJIT_OFFSETOF(jit_arguments, mark_ptr), SLJIT_TEMPORARY_REG3, 0);
+OP2(SLJIT_SUB, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), SLJIT_OFFSETOF(jit_arguments, offsets), SLJIT_IMM, sizeof(int));
+OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG1, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), SLJIT_OFFSETOF(jit_arguments, begin));
+GET_LOCAL_BASE(SLJIT_SAVED_REG1, 0, OVECTOR_START);
+/* Unlikely, but possible */
+earlyexit = CMP(SLJIT_C_EQUAL, SLJIT_TEMPORARY_REG2, 0, SLJIT_IMM, 0);
+loop = LABEL();
+OP2(SLJIT_SUB, SLJIT_SAVED_REG2, 0, SLJIT_MEM1(SLJIT_SAVED_REG1), 0, SLJIT_TEMPORARY_REG1, 0);
+OP2(SLJIT_ADD, SLJIT_SAVED_REG1, 0, SLJIT_SAVED_REG1, 0, SLJIT_IMM, sizeof(sljit_w));
+/* Copy the integer value to the output buffer */
+#ifdef COMPILE_PCRE16
+OP2(SLJIT_ASHR, SLJIT_SAVED_REG2, 0, SLJIT_SAVED_REG2, 0, SLJIT_IMM, 1);
+#endif
+OP1(SLJIT_MOVU_SI, SLJIT_MEM1(SLJIT_TEMPORARY_REG3), sizeof(int), SLJIT_SAVED_REG2, 0);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_TEMPORARY_REG2, 0, SLJIT_TEMPORARY_REG2, 0, SLJIT_IMM, 1);
+JUMPTO(SLJIT_C_NOT_ZERO, loop);
+JUMPHERE(earlyexit);
+
+/* Calculate the return value, which is the maximum ovector value. */
+if (topbracket > 1)
+  {
+  GET_LOCAL_BASE(SLJIT_TEMPORARY_REG1, 0, OVECTOR_START + topbracket * 2 * sizeof(sljit_w));
+  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG2, 0, SLJIT_IMM, topbracket + 1);
+
+  /* OVECTOR(0) is never equal to SLJIT_SAVED_REG3. */
+  loop = LABEL();
+  OP1(SLJIT_MOVU, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG1), -(2 * (sljit_w)sizeof(sljit_w)));
+  OP2(SLJIT_SUB, SLJIT_TEMPORARY_REG2, 0, SLJIT_TEMPORARY_REG2, 0, SLJIT_IMM, 1);
+  CMPTO(SLJIT_C_EQUAL, SLJIT_TEMPORARY_REG3, 0, SLJIT_SAVED_REG3, 0, loop);
+  OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_TEMPORARY_REG2, 0);
+  }
+else
+  OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1);
+}
+
+static SLJIT_INLINE void return_with_partial_match(compiler_common *common, struct sljit_label *leave)
+{
+DEFINE_COMPILER;
+
+SLJIT_COMPILE_ASSERT(STR_END == SLJIT_SAVED_REG2, str_end_must_be_saved_reg2);
+SLJIT_ASSERT(common->start_used_ptr != 0 && (common->mode == JIT_PARTIAL_SOFT_COMPILE ? common->hit_start != 0 : common->hit_start == 0));
+
+OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG2, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_PARTIAL);
+OP1(SLJIT_MOV_SI, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), SLJIT_OFFSETOF(jit_arguments, offsetcount));
+CMPTO(SLJIT_C_LESS, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, 2, leave);
+
+/* Store match begin and end. */
+OP1(SLJIT_MOV, SLJIT_SAVED_REG1, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), SLJIT_OFFSETOF(jit_arguments, begin));
+OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG2, 0, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), SLJIT_OFFSETOF(jit_arguments, offsets));
+OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG3, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mode == JIT_PARTIAL_HARD_COMPILE ? common->start_used_ptr : common->hit_start);
+OP2(SLJIT_SUB, SLJIT_SAVED_REG2, 0, STR_END, 0, SLJIT_SAVED_REG1, 0);
+#ifdef COMPILE_PCRE16
+OP2(SLJIT_ASHR, SLJIT_SAVED_REG2, 0, SLJIT_SAVED_REG2, 0, SLJIT_IMM, 1);
+#endif
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), sizeof(int), SLJIT_SAVED_REG2, 0);
+
+OP2(SLJIT_SUB, SLJIT_TEMPORARY_REG3, 0, SLJIT_TEMPORARY_REG3, 0, SLJIT_SAVED_REG1, 0);
+#ifdef COMPILE_PCRE16
+OP2(SLJIT_ASHR, SLJIT_TEMPORARY_REG3, 0, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, 1);
+#endif
+OP1(SLJIT_MOV_SI, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), 0, SLJIT_TEMPORARY_REG3, 0);
+
+JUMPTO(SLJIT_JUMP, leave);
+}
+
+static SLJIT_INLINE void check_start_used_ptr(compiler_common *common)
+{
+/* May destroy TMP1. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+  {
+  /* The value of -1 must be kept for start_used_ptr! */
+  OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, SLJIT_IMM, 1);
+  /* Jumps if start_used_ptr < STR_PTR, or start_used_ptr == -1. Although overwriting
+  is not necessary if start_used_ptr == STR_PTR, it does not hurt as well. */
+  jump = CMP(SLJIT_C_LESS_EQUAL, TMP1, 0, STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+  JUMPHERE(jump);
+  }
+else if (common->mode == JIT_PARTIAL_HARD_COMPILE)
+  {
+  jump = CMP(SLJIT_C_LESS_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+  JUMPHERE(jump);
+  }
+}
+
+static SLJIT_INLINE BOOL char_has_othercase(compiler_common *common, pcre_uchar* cc)
+{
+/* Detects if the character has an othercase. */
+unsigned int c;
+
+#ifdef SUPPORT_UTF
+if (common->utf)
+  {
+  GETCHAR(c, cc);
+  if (c > 127)
+    {
+#ifdef SUPPORT_UCP
+    return c != UCD_OTHERCASE(c);
+#else
+    return FALSE;
+#endif
+    }
+#ifndef COMPILE_PCRE8
+  return common->fcc[c] != c;
+#endif
+  }
+else
+#endif
+  c = *cc;
+return MAX_255(c) ? common->fcc[c] != c : FALSE;
+}
+
+static SLJIT_INLINE unsigned int char_othercase(compiler_common *common, unsigned int c)
+{
+/* Returns with the othercase. */
+#ifdef SUPPORT_UTF
+if (common->utf && c > 127)
+  {
+#ifdef SUPPORT_UCP
+  return UCD_OTHERCASE(c);
+#else
+  return c;
+#endif
+  }
+#endif
+return TABLE_GET(c, common->fcc, c);
+}
+
+static unsigned int char_get_othercase_bit(compiler_common *common, pcre_uchar* cc)
+{
+/* Detects if the character and its othercase has only 1 bit difference. */
+unsigned int c, oc, bit;
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+int n;
+#endif
+
+#ifdef SUPPORT_UTF
+if (common->utf)
+  {
+  GETCHAR(c, cc);
+  if (c <= 127)
+    oc = common->fcc[c];
+  else
+    {
+#ifdef SUPPORT_UCP
+    oc = UCD_OTHERCASE(c);
+#else
+    oc = c;
+#endif
+    }
+  }
+else
+  {
+  c = *cc;
+  oc = TABLE_GET(c, common->fcc, c);
+  }
+#else
+c = *cc;
+oc = TABLE_GET(c, common->fcc, c);
+#endif
+
+SLJIT_ASSERT(c != oc);
+
+bit = c ^ oc;
+/* Optimized for English alphabet. */
+if (c <= 127 && bit == 0x20)
+  return (0 << 8) | 0x20;
+
+/* Since c != oc, they must have at least 1 bit difference. */
+if (!ispowerof2(bit))
+  return 0;
+
+#ifdef COMPILE_PCRE8
+
+#ifdef SUPPORT_UTF
+if (common->utf && c > 127)
+  {
+  n = GET_EXTRALEN(*cc);
+  while ((bit & 0x3f) == 0)
+    {
+    n--;
+    bit >>= 6;
+    }
+  return (n << 8) | bit;
+  }
+#endif /* SUPPORT_UTF */
+return (0 << 8) | bit;
+
+#else /* COMPILE_PCRE8 */
+
+#ifdef COMPILE_PCRE16
+#ifdef SUPPORT_UTF
+if (common->utf && c > 65535)
+  {
+  if (bit >= (1 << 10))
+    bit >>= 10;
+  else
+    return (bit < 256) ? ((2 << 8) | bit) : ((3 << 8) | (bit >> 8));
+  }
+#endif /* SUPPORT_UTF */
+return (bit < 256) ? ((0 << 8) | bit) : ((1 << 8) | (bit >> 8));
+#endif /* COMPILE_PCRE16 */
+
+#endif /* COMPILE_PCRE8 */
+}
+
+static void check_partial(compiler_common *common, BOOL force)
+{
+/* Checks whether a partial matching is occured. Does not modify registers. */
+DEFINE_COMPILER;
+struct sljit_jump *jump = NULL;
+
+SLJIT_ASSERT(!force || common->mode != JIT_COMPILE);
+
+if (common->mode == JIT_COMPILE)
+  return;
+
+if (!force)
+  jump = CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+else if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+  jump = CMP(SLJIT_C_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, SLJIT_IMM, -1);
+
+if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);
+else
+  {
+  if (common->partialmatchlabel != NULL)
+    JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
+  else
+    add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
+  }
+
+if (jump != NULL)
+  JUMPHERE(jump);
+}
+
+static struct sljit_jump *check_str_end(compiler_common *common)
+{
+/* Does not affect registers. Usually used in a tight spot. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_jump *nohit;
+struct sljit_jump *return_value;
+
+if (common->mode == JIT_COMPILE)
+  return CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+
+jump = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);
+if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+  {
+  nohit = CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);
+  JUMPHERE(nohit);
+  return_value = JUMP(SLJIT_JUMP);
+  }
+else
+  {
+  return_value = CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+  if (common->partialmatchlabel != NULL)
+    JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
+  else
+    add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
+  }
+JUMPHERE(jump);
+return return_value;
+}
+
+static void detect_partial_match(compiler_common *common, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+if (common->mode == JIT_COMPILE)
+  {
+  add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
+  return;
+  }
+
+/* Partial matching mode. */
+jump = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);
+add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0));
+if (common->mode == JIT_PARTIAL_SOFT_COMPILE)
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);
+  add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+  }
+else
+  {
+  if (common->partialmatchlabel != NULL)
+    JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
+  else
+    add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
+  }
+JUMPHERE(jump);
+}
+
+static void read_char(compiler_common *common)
+{
+/* Reads the character into TMP1, updates STR_PTR.
+Does not check STR_END. TMP2 Destroyed. */
+DEFINE_COMPILER;
+#ifdef SUPPORT_UTF
+struct sljit_jump *jump;
+#endif
+
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+#ifdef SUPPORT_UTF
+if (common->utf)
+  {
+#ifdef COMPILE_PCRE8
+  jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+#else
+#ifdef COMPILE_PCRE16
+  jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
+#endif
+#endif /* COMPILE_PCRE8 */
+  add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL));
+  JUMPHERE(jump);
+  }
+#endif
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+}
+
+static void peek_char(compiler_common *common)
+{
+/* Reads the character into TMP1, keeps STR_PTR.
+Does not check STR_END. TMP2 Destroyed. */
+DEFINE_COMPILER;
+#ifdef SUPPORT_UTF
+struct sljit_jump *jump;
+#endif
+
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+#ifdef SUPPORT_UTF
+if (common->utf)
+  {
+#ifdef COMPILE_PCRE8
+  jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+#else
+#ifdef COMPILE_PCRE16
+  jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
+#endif
+#endif /* COMPILE_PCRE8 */
+  add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL));
+  OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+  JUMPHERE(jump);
+  }
+#endif
+}
+
+static void read_char8_type(compiler_common *common)
+{
+/* Reads the character type into TMP1, updates STR_PTR. Does not check STR_END. */
+DEFINE_COMPILER;
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16
+struct sljit_jump *jump;
+#endif
+
+#ifdef SUPPORT_UTF
+if (common->utf)
+  {
+  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#ifdef COMPILE_PCRE8
+  /* This can be an extra read in some situations, but hopefully
+  it is needed in most cases. */
+  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+  jump = CMP(SLJIT_C_LESS, TMP2, 0, SLJIT_IMM, 0xc0);
+  add_jump(compiler, &common->utfreadtype8, JUMP(SLJIT_FAST_CALL));
+  JUMPHERE(jump);
+#else
+#ifdef COMPILE_PCRE16
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+  jump = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);
+  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+  JUMPHERE(jump);
+  /* Skip low surrogate if necessary. */
+  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xfc00);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0xd800);
+  COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+#endif
+#endif /* COMPILE_PCRE8 */
+  return;
+  }
+#endif
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#ifdef COMPILE_PCRE16
+/* The ctypes array contains only 256 values. */
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+jump = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);
+#endif
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+#ifdef COMPILE_PCRE16
+JUMPHERE(jump);
+#endif
+}
+
+static void skip_char_back(compiler_common *common)
+{
+/* Goes one character back. Affects STR_PTR and TMP1. Does not check begin. */
+DEFINE_COMPILER;
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+struct sljit_label *label;
+
+if (common->utf)
+  {
+  label = LABEL();
+  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));
+  OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0);
+  CMPTO(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, label);
+  return;
+  }
+#endif
+#if defined SUPPORT_UTF && defined COMPILE_PCRE16
+if (common->utf)
+  {
+  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));
+  OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+  /* Skip low surrogate if necessary. */
+  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xdc00);
+  COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  return;
+  }
+#endif
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+}
+
+static void check_newlinechar(compiler_common *common, int nltype, jump_list **backtracks, BOOL jumpiftrue)
+{
+/* Character comes in TMP1. Checks if it is a newline. TMP2 may be destroyed. */
+DEFINE_COMPILER;
+
+if (nltype == NLTYPE_ANY)
+  {
+  add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
+  add_jump(compiler, backtracks, JUMP(jumpiftrue ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+  }
+else if (nltype == NLTYPE_ANYCRLF)
+  {
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_CR);
+  COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_NL);
+  COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+  add_jump(compiler, backtracks, JUMP(jumpiftrue ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+  }
+else
+  {
+  SLJIT_ASSERT(nltype == NLTYPE_FIXED && common->newline < 256);
+  add_jump(compiler, backtracks, CMP(jumpiftrue ? SLJIT_C_EQUAL : SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline));
+  }
+}
+
+#ifdef SUPPORT_UTF
+
+#ifdef COMPILE_PCRE8
+static void do_utfreadchar(compiler_common *common)
+{
+/* Fast decoding a UTF-8 character. TMP1 contains the first byte
+of the character (>= 0xc0). Return char value in TMP1, length - 1 in TMP2. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+/* Searching for the first zero. */
+OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20);
+jump = JUMP(SLJIT_C_NOT_ZERO);
+/* Two byte sequence. */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1f);
+OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+JUMPHERE(jump);
+
+OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x10);
+jump = JUMP(SLJIT_C_NOT_ZERO);
+/* Three byte sequence. */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0f);
+OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 12);
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(2));
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+JUMPHERE(jump);
+
+/* Four byte sequence. */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x07);
+OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 18);
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 12);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(3));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3));
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(3));
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+static void do_utfreadtype8(compiler_common *common)
+{
+/* Fast decoding a UTF-8 character type. TMP2 contains the first byte
+of the character (>= 0xc0). Return value in TMP1. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_jump *compare;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0x20);
+jump = JUMP(SLJIT_C_NOT_ZERO);
+/* Two byte sequence. */
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x1f);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
+OP2(SLJIT_OR, TMP2, 0, TMP2, 0, TMP1, 0);
+compare = CMP(SLJIT_C_GREATER, TMP2, 0, SLJIT_IMM, 255);
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+
+JUMPHERE(compare);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+JUMPHERE(jump);
+
+/* We only have types for characters less than 256. */
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP2), (sljit_w)PRIV(utf8_table4) - 0xc0);
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#else /* COMPILE_PCRE8 */
+
+#ifdef COMPILE_PCRE16
+static void do_utfreadchar(compiler_common *common)
+{
+/* Fast decoding a UTF-16 character. TMP1 contains the first 16 bit char
+of the character (>= 0xd800). Return char value in TMP1, length - 1 in TMP2. */
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xdc00);
+/* Do nothing, only return. */
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+
+JUMPHERE(jump);
+/* Combine two 16 bit characters. */
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3ff);
+OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 10);
+OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3ff);
+OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+#endif /* COMPILE_PCRE16 */
+
+#endif /* COMPILE_PCRE8 */
+
+#endif /* SUPPORT_UTF */
+
+#ifdef SUPPORT_UCP
+
+/* UCD_BLOCK_SIZE must be 128 (see the assert below). */
+#define UCD_BLOCK_MASK 127
+#define UCD_BLOCK_SHIFT 7
+
+static void do_getucd(compiler_common *common)
+{
+/* Search the UCD record for the character comes in TMP1.
+Returns chartype in TMP1 and UCD offset in TMP2. */
+DEFINE_COMPILER;
+
+SLJIT_ASSERT(UCD_BLOCK_SIZE == 128 && sizeof(ucd_record) == 8);
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_w)PRIV(ucd_stage1));
+OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK);
+OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_w)PRIV(ucd_stage2));
+OP1(SLJIT_MOV_UH, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_w)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM2(TMP1, TMP2), 3);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+#endif
+
+static SLJIT_INLINE struct sljit_label *mainloop_entry(compiler_common *common, BOOL hascrorlf, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *mainloop;
+struct sljit_label *newlinelabel = NULL;
+struct sljit_jump *start;
+struct sljit_jump *end = NULL;
+struct sljit_jump *nl = NULL;
+#ifdef SUPPORT_UTF
+struct sljit_jump *singlechar;
+#endif
+jump_list *newline = NULL;
+BOOL newlinecheck = FALSE;
+BOOL readuchar = FALSE;
+
+if (!(hascrorlf || firstline) && (common->nltype == NLTYPE_ANY ||
+    common->nltype == NLTYPE_ANYCRLF || common->newline > 255))
+  newlinecheck = TRUE;
+
+if (firstline)
+  {
+  /* Search for the end of the first line. */
+  SLJIT_ASSERT(common->first_line_end != 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_END, 0);
+
+  if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+    {
+    mainloop = LABEL();
+    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+    end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
+    OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+    CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, mainloop);
+    CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, mainloop);
+    OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+    }
+  else
+    {
+    end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+    mainloop = LABEL();
+    /* Continual stores does not cause data dependency. */
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0);
+    read_char(common);
+    check_newlinechar(common, common->nltype, &newline, TRUE);
+    CMPTO(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0, mainloop);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, STR_PTR, 0);
+    set_jumps(newline, LABEL());
+    }
+
+  JUMPHERE(end);
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+  }
+
+start = JUMP(SLJIT_JUMP);
+
+if (newlinecheck)
+  {
+  newlinelabel = LABEL();
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+  end = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, common->newline & 0xff);
+  COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);
+#ifdef COMPILE_PCRE16
+  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+#endif
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  nl = JUMP(SLJIT_JUMP);
+  }
+
+mainloop = LABEL();
+
+/* Increasing the STR_PTR here requires one less jump in the most common case. */
+#ifdef SUPPORT_UTF
+if (common->utf) readuchar = TRUE;
+#endif
+if (newlinecheck) readuchar = TRUE;
+
+if (readuchar)
+  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+
+if (newlinecheck)
+  CMPTO(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, newlinelabel);
+
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+if (common->utf)
+  {
+  singlechar = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_w)PRIV(utf8_table4) - 0xc0);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  JUMPHERE(singlechar);
+  }
+#endif
+#if defined SUPPORT_UTF && defined COMPILE_PCRE16
+if (common->utf)
+  {
+  singlechar = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
+  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+  COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  JUMPHERE(singlechar);
+  }
+#endif
+JUMPHERE(start);
+
+if (newlinecheck)
+  {
+  JUMPHERE(end);
+  JUMPHERE(nl);
+  }
+
+return mainloop;
+}
+
+static SLJIT_INLINE void fast_forward_first_char(compiler_common *common, pcre_uchar first_char, BOOL caseless, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *start;
+struct sljit_jump *leave;
+struct sljit_jump *found;
+pcre_uchar oc, bit;
+
+if (firstline)
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, STR_END, 0);
+  OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end);
+  }
+
+start = LABEL();
+leave = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+
+oc = first_char;
+if (caseless)
+  {
+  oc = TABLE_GET(first_char, common->fcc, first_char);
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+  if (first_char > 127 && common->utf)
+    oc = UCD_OTHERCASE(first_char);
+#endif
+  }
+if (first_char == oc)
+  found = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, first_char);
+else
+  {
+  bit = first_char ^ oc;
+  if (ispowerof2(bit))
+    {
+    OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, bit);
+    found = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, first_char | bit);
+    }
+  else
+    {
+    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, first_char);
+    COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);
+    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, oc);
+    COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+    found = JUMP(SLJIT_C_NOT_ZERO);
+    }
+  }
+
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+if (common->utf)
+  {
+  CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0, start);
+  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_w)PRIV(utf8_table4) - 0xc0);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  }
+#endif
+#if defined SUPPORT_UTF && defined COMPILE_PCRE16
+if (common->utf)
+  {
+  CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800, start);
+  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+  COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  }
+#endif
+JUMPTO(SLJIT_JUMP, start);
+JUMPHERE(found);
+JUMPHERE(leave);
+
+if (firstline)
+  OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+}
+
+static SLJIT_INLINE void fast_forward_newline(compiler_common *common, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+struct sljit_jump *lastchar;
+struct sljit_jump *firstchar;
+struct sljit_jump *leave;
+struct sljit_jump *foundcr = NULL;
+struct sljit_jump *notfoundnl;
+jump_list *newline = NULL;
+
+if (firstline)
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, STR_END, 0);
+  OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end);
+  }
+
+if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+  {
+  lastchar = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+  OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+  firstchar = CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, TMP2, 0);
+
+  OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(2));
+  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_PTR, 0, TMP1, 0);
+  COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_GREATER_EQUAL);
+#ifdef COMPILE_PCRE16
+  OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
+#endif
+  OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+
+  loop = LABEL();
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+  leave = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2));
+  OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
+  CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, loop);
+  CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, loop);
+
+  JUMPHERE(leave);
+  JUMPHERE(firstchar);
+  JUMPHERE(lastchar);
+
+  if (firstline)
+    OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+  return;
+  }
+
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+firstchar = CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, TMP2, 0);
+skip_char_back(common);
+
+loop = LABEL();
+read_char(common);
+lastchar = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF)
+  foundcr = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
+check_newlinechar(common, common->nltype, &newline, FALSE);
+set_jumps(newline, loop);
+
+if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF)
+  {
+  leave = JUMP(SLJIT_JUMP);
+  JUMPHERE(foundcr);
+  notfoundnl = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_NL);
+  COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);
+#ifdef COMPILE_PCRE16
+  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+#endif
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  JUMPHERE(notfoundnl);
+  JUMPHERE(leave);
+  }
+JUMPHERE(lastchar);
+JUMPHERE(firstchar);
+
+if (firstline)
+  OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+}
+
+static SLJIT_INLINE void fast_forward_start_bits(compiler_common *common, sljit_uw start_bits, BOOL firstline)
+{
+DEFINE_COMPILER;
+struct sljit_label *start;
+struct sljit_jump *leave;
+struct sljit_jump *found;
+#ifndef COMPILE_PCRE8
+struct sljit_jump *jump;
+#endif
+
+if (firstline)
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, STR_END, 0);
+  OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end);
+  }
+
+start = LABEL();
+leave = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+#ifdef SUPPORT_UTF
+if (common->utf)
+  OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
+#endif
+#ifndef COMPILE_PCRE8
+jump = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 255);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 255);
+JUMPHERE(jump);
+#endif
+OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
+OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
+OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), start_bits);
+OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
+OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+found = JUMP(SLJIT_C_NOT_ZERO);
+
+#ifdef SUPPORT_UTF
+if (common->utf)
+  OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+#endif
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+if (common->utf)
+  {
+  CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0, start);
+  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_w)PRIV(utf8_table4) - 0xc0);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  }
+#endif
+#if defined SUPPORT_UTF && defined COMPILE_PCRE16
+if (common->utf)
+  {
+  CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800, start);
+  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+  COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+  }
+#endif
+JUMPTO(SLJIT_JUMP, start);
+JUMPHERE(found);
+JUMPHERE(leave);
+
+if (firstline)
+  OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+}
+
+static SLJIT_INLINE struct sljit_jump *search_requested_char(compiler_common *common, pcre_uchar req_char, BOOL caseless, BOOL has_firstchar)
+{
+DEFINE_COMPILER;
+struct sljit_label *loop;
+struct sljit_jump *toolong;
+struct sljit_jump *alreadyfound;
+struct sljit_jump *found;
+struct sljit_jump *foundoc = NULL;
+struct sljit_jump *notfound;
+pcre_uchar oc, bit;
+
+SLJIT_ASSERT(common->req_char_ptr != 0);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->req_char_ptr);
+OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, REQ_BYTE_MAX);
+toolong = CMP(SLJIT_C_LESS, TMP1, 0, STR_END, 0);
+alreadyfound = CMP(SLJIT_C_LESS, STR_PTR, 0, TMP2, 0);
+
+if (has_firstchar)
+  OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+else
+  OP1(SLJIT_MOV, TMP1, 0, STR_PTR, 0);
+
+loop = LABEL();
+notfound = CMP(SLJIT_C_GREATER_EQUAL, TMP1, 0, STR_END, 0);
+
+OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(TMP1), 0);
+oc = req_char;
+if (caseless)
+  {
+  oc = TABLE_GET(req_char, common->fcc, req_char);
+#if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
+  if (req_char > 127 && common->utf)
+    oc = UCD_OTHERCASE(req_char);
+#endif
+  }
+if (req_char == oc)
+  found = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, req_char);
+else
+  {
+  bit = req_char ^ oc;
+  if (ispowerof2(bit))
+    {
+    OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, bit);
+    found = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, req_char | bit);
+    }
+  else
+    {
+    found = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, req_char);
+    foundoc = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, oc);
+    }
+  }
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
+JUMPTO(SLJIT_JUMP, loop);
+
+JUMPHERE(found);
+if (foundoc)
+  JUMPHERE(foundoc);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->req_char_ptr, TMP1, 0);
+JUMPHERE(alreadyfound);
+JUMPHERE(toolong);
+return notfound;
+}
+
+static void do_revertframes(compiler_common *common)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_label *mainloop;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+OP1(SLJIT_MOV, TMP1, 0, STACK_TOP, 0);
+GET_LOCAL_BASE(TMP3, 0, 0);
+
+/* Drop frames until we reach STACK_TOP. */
+mainloop = LABEL();
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), 0);
+jump = CMP(SLJIT_C_SIG_LESS_EQUAL, TMP2, 0, SLJIT_IMM, frame_end);
+OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP3, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(TMP1), sizeof(sljit_w));
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), sizeof(sljit_w), SLJIT_MEM1(TMP1), 2 * sizeof(sljit_w));
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_w));
+JUMPTO(SLJIT_JUMP, mainloop);
+
+JUMPHERE(jump);
+jump = CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, frame_end);
+/* End of dropping frames. */
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+
+JUMPHERE(jump);
+jump = CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, frame_setstrbegin);
+/* Set string begin. */
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), sizeof(sljit_w));
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_w));
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), TMP2, 0);
+JUMPTO(SLJIT_JUMP, mainloop);
+
+JUMPHERE(jump);
+if (common->mark_ptr != 0)
+  {
+  jump = CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, frame_setmark);
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), sizeof(sljit_w));
+  OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_w));
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, TMP2, 0);
+  JUMPTO(SLJIT_JUMP, mainloop);
+
+  JUMPHERE(jump);
+  }
+
+/* Unknown command. */
+OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_w));
+JUMPTO(SLJIT_JUMP, mainloop);
+}
+
+static void check_wordboundary(compiler_common *common)
+{
+DEFINE_COMPILER;
+struct sljit_jump *skipread;
+#if !(defined COMPILE_PCRE8) || defined SUPPORT_UTF
+struct sljit_jump *jump;
+#endif
+
+SLJIT_COMPILE_ASSERT(ctype_word == 0x10, ctype_word_must_be_16);
+
+sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+/* Get type of the previous char, and put it to LOCALS1. */
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, SLJIT_IMM, 0);
+skipread = CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, TMP1, 0);
+skip_char_back(common);
+check_start_used_ptr(common);
+read_char(common);
+
+/* Testing char type. */
+#ifdef SUPPORT_UCP
+if (common->use_ucp)
+  {
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 1);
+  jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
+  add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+  OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll);
+  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+  COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_LESS_EQUAL);
+  OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll);
+  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_LESS_EQUAL);
+  JUMPHERE(jump);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP2, 0);
+  }
+else
+#endif
+  {
+#ifndef COMPILE_PCRE8
+  jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#elif defined SUPPORT_UTF
+  /* Here LOCALS1 has already been zeroed. */
+  jump = NULL;
+  if (common->utf)
+    jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#endif /* COMPILE_PCRE8 */
+  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), common->ctypes);
+  OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 4 /* ctype_word */);
+  OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP1, 0);
+#ifndef COMPILE_PCRE8
+  JUMPHERE(jump);
+#elif defined SUPPORT_UTF
+  if (jump != NULL)
+    JUMPHERE(jump);
+#endif /* COMPILE_PCRE8 */
+  }
+JUMPHERE(skipread);
+
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
+skipread = check_str_end(common);
+peek_char(common);
+
+/* Testing char type. This is a code duplication. */
+#ifdef SUPPORT_UCP
+if (common->use_ucp)
+  {
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 1);
+  jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
+  add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+  OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll);
+  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+  COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_LESS_EQUAL);
+  OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll);
+  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_LESS_EQUAL);
+  JUMPHERE(jump);
+  }
+else
+#endif
+  {
+#ifndef COMPILE_PCRE8
+  /* TMP2 may be destroyed by peek_char. */
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
+  jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#elif defined SUPPORT_UTF
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
+  jump = NULL;
+  if (common->utf)
+    jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#endif
+  OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), common->ctypes);
+  OP2(SLJIT_LSHR, TMP2, 0, TMP2, 0, SLJIT_IMM, 4 /* ctype_word */);
+  OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
+#ifndef COMPILE_PCRE8
+  JUMPHERE(jump);
+#elif defined SUPPORT_UTF
+  if (jump != NULL)
+    JUMPHERE(jump);
+#endif /* COMPILE_PCRE8 */
+  }
+JUMPHERE(skipread);
+
+OP2(SLJIT_XOR | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1);
+sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+}
+
+static void check_anynewline(compiler_common *common)
+{
+/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
+DEFINE_COMPILER;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a);
+OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
+COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_LESS_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16
+#ifdef COMPILE_PCRE8
+if (common->utf)
+  {
+#endif
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
+#ifdef COMPILE_PCRE8
+  }
+#endif
+#endif /* SUPPORT_UTF || COMPILE_PCRE16 */
+COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+static void check_hspace(compiler_common *common)
+{
+/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
+DEFINE_COMPILER;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x09);
+COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20);
+COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xa0);
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16
+#ifdef COMPILE_PCRE8
+if (common->utf)
+  {
+#endif
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x1680);
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e);
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x2000);
+  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x200A - 0x2000);
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_LESS_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x202f - 0x2000);
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x205f - 0x2000);
+  COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x3000 - 0x2000);
+#ifdef COMPILE_PCRE8
+  }
+#endif
+#endif /* SUPPORT_UTF || COMPILE_PCRE16 */
+COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+static void check_vspace(compiler_common *common)
+{
+/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
+DEFINE_COMPILER;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a);
+OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
+COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_LESS_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16
+#ifdef COMPILE_PCRE8
+if (common->utf)
+  {
+#endif
+  COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
+#ifdef COMPILE_PCRE8
+  }
+#endif
+#endif /* SUPPORT_UTF || COMPILE_PCRE16 */
+COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#define CHAR1 STR_END
+#define CHAR2 STACK_TOP
+
+static void do_casefulcmp(compiler_common *common)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_label *label;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+OP1(SLJIT_MOV, TMP3, 0, CHAR1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, CHAR2, 0);
+OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+
+label = LABEL();
+OP1(MOVU_UCHAR, CHAR1, 0, SLJIT_MEM1(TMP1), IN_UCHARS(1));
+OP1(MOVU_UCHAR, CHAR2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+jump = CMP(SLJIT_C_NOT_EQUAL, CHAR1, 0, CHAR2, 0);
+OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+JUMPTO(SLJIT_C_NOT_ZERO, label);
+
+JUMPHERE(jump);
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP1(SLJIT_MOV, CHAR1, 0, TMP3, 0);
+OP1(SLJIT_MOV, CHAR2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#define LCC_TABLE STACK_LIMIT
+
+static void do_caselesscmp(compiler_common *common)
+{
+DEFINE_COMPILER;
+struct sljit_jump *jump;
+struct sljit_label *label;
+
+sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+
+OP1(SLJIT_MOV, TMP3, 0, LCC_TABLE, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, CHAR1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, CHAR2, 0);
+OP1(SLJIT_MOV, LCC_TABLE, 0, SLJIT_IMM, common->lcc);
+OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+
+label = LABEL();
+OP1(MOVU_UCHAR, CHAR1, 0, SLJIT_MEM1(TMP1), IN_UCHARS(1));
+OP1(MOVU_UCHAR, CHAR2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+#ifndef COMPILE_PCRE8
+jump = CMP(SLJIT_C_GREATER, CHAR1, 0, SLJIT_IMM, 255);
+#endif
+OP1(SLJIT_MOV_UB, CHAR1, 0, SLJIT_MEM2(LCC_TABLE, CHAR1), 0);
+#ifndef COMPILE_PCRE8
+JUMPHERE(jump);
+jump = CMP(SLJIT_C_GREATER, CHAR2, 0, SLJIT_IMM, 255);
+#endif
+OP1(SLJIT_MOV_UB, CHAR2, 0, SLJIT_MEM2(LCC_TABLE, CHAR2), 0);
+#ifndef COMPILE_PCRE8
+JUMPHERE(jump);
+#endif
+jump = CMP(SLJIT_C_NOT_EQUAL, CHAR1, 0, CHAR2, 0);
+OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+JUMPTO(SLJIT_C_NOT_ZERO, label);
+
+JUMPHERE(jump);
+OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+OP1(SLJIT_MOV, LCC_TABLE, 0, TMP3, 0);
+OP1(SLJIT_MOV, CHAR1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+OP1(SLJIT_MOV, CHAR2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1);
+sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
+}
+
+#undef LCC_TABLE
+#undef CHAR1
+#undef CHAR2
+
+#if defined SUPPORT_UTF && defined SUPPORT_UCP
+
+static const pcre_uchar *SLJIT_CALL do_utf_caselesscmp(pcre_uchar *src1, jit_arguments *args, pcre_uchar *end1)
+{
+/* This function would be ineffective to do in JIT level. */
+int c1, c2;
+const pcre_uchar *src2 = args->uchar_ptr;
+const pcre_uchar *end2 = args->end;
+
+while (src1 < end1)
+  {
+  if (src2 >= end2)
+    return (pcre_uchar*)1;
+  GETCHARINC(c1, src1);
+  GETCHARINC(c2, src2);
+  if (c1 != c2 && c1 != UCD_OTHERCASE(c2)) return NULL;
+  }
+return src2;
+}
+
+#endif /* SUPPORT_UTF && SUPPORT_UCP */
+
+static pcre_uchar *byte_sequence_compare(compiler_common *common, BOOL caseless, pcre_uchar *cc,
+    compare_context* context, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+unsigned int othercasebit = 0;
+pcre_uchar *othercasechar = NULL;
+#ifdef SUPPORT_UTF
+int utflength;
+#endif
+
+if (caseless && char_has_othercase(common, cc))
+  {
+  othercasebit = char_get_othercase_bit(common, cc);
+  SLJIT_ASSERT(othercasebit);
+  /* Extracting bit difference info. */
+#ifdef COMPILE_PCRE8
+  othercasechar = cc + (othercasebit >> 8);
+  othercasebit &= 0xff;
+#else
+#ifdef COMPILE_PCRE16
+  othercasechar = cc + (othercasebit >> 9);
+  if ((othercasebit & 0x100) != 0)
+    othercasebit = (othercasebit & 0xff) << 8;
+  else
+    othercasebit &= 0xff;
+#endif
+#endif
+  }
+
+if (context->sourcereg == -1)
+  {
+#ifdef COMPILE_PCRE8
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+  if (context->length >= 4)
+    OP1(SLJIT_MOV_SI, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+  else if (context->length >= 2)
+    OP1(SLJIT_MOV_UH, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+  else
+#endif
+    OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#else
+#ifdef COMPILE_PCRE16
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+  if (context->length >= 4)
+    OP1(SLJIT_MOV_SI, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+  else
+#endif
+    OP1(SLJIT_MOV_UH, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#endif
+#endif /* COMPILE_PCRE8 */
+  context->sourcereg = TMP2;
+  }
+
+#ifdef SUPPORT_UTF
+utflength = 1;
+if (common->utf && HAS_EXTRALEN(*cc))
+  utflength += GET_EXTRALEN(*cc);
+
+do
+  {
+#endif
+
+  context->length -= IN_UCHARS(1);
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+
+  /* Unaligned read is supported. */
+  if (othercasebit != 0 && othercasechar == cc)
+    {
+    context->c.asuchars[context->ucharptr] = *cc | othercasebit;
+    context->oc.asuchars[context->ucharptr] = othercasebit;
+    }
+  else
+    {
+    context->c.asuchars[context->ucharptr] = *cc;
+    context->oc.asuchars[context->ucharptr] = 0;
+    }
+  context->ucharptr++;
+
+#ifdef COMPILE_PCRE8
+  if (context->ucharptr >= 4 || context->length == 0 || (context->ucharptr == 2 && context->length == 1))
+#else
+  if (context->ucharptr >= 2 || context->length == 0)
+#endif
+    {
+    if (context->length >= 4)
+      OP1(SLJIT_MOV_SI, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#ifdef COMPILE_PCRE8
+    else if (context->length >= 2)
+      OP1(SLJIT_MOV_UH, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+    else if (context->length >= 1)
+      OP1(SLJIT_MOV_UB, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#else
+    else if (context->length >= 2)
+      OP1(SLJIT_MOV_UH, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#endif
+    context->sourcereg = context->sourcereg == TMP1 ? TMP2 : TMP1;
+
+    switch(context->ucharptr)
+      {
+      case 4 / sizeof(pcre_uchar):
+      if (context->oc.asint != 0)
+        OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asint);
+      add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asint | context->oc.asint));
+      break;
+
+      case 2 / sizeof(pcre_uchar):
+      if (context->oc.asushort != 0)
+        OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asushort);
+      add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asushort | context->oc.asushort));
+      break;
+
+#ifdef COMPILE_PCRE8
+      case 1:
+      if (context->oc.asbyte != 0)
+        OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asbyte);
+      add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asbyte | context->oc.asbyte));
+      break;
+#endif
+
+      default:
+      SLJIT_ASSERT_STOP();
+      break;
+      }
+    context->ucharptr = 0;
+    }
+
+#else
+
+  /* Unaligned read is unsupported. */
+#ifdef COMPILE_PCRE8
+  if (context->length > 0)
+    OP1(SLJIT_MOV_UB, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#else
+  if (context->length > 0)
+    OP1(SLJIT_MOV_UH, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
+#endif
+  context->sourcereg = context->sourcereg == TMP1 ? TMP2 : TMP1;
+
+  if (othercasebit != 0 && othercasechar == cc)
+    {
+    OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, othercasebit);
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc | othercasebit));
+    }
+  else
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc));
+
+#endif
+
+  cc++;
+#ifdef SUPPORT_UTF
+  utflength--;
+  }
+while (utflength > 0);
+#endif
+
+return cc;
+}
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+
+#define SET_TYPE_OFFSET(value) \
+  if ((value) != typeoffset) \
+    { \
+    if ((value) > typeoffset) \
+      OP2(SLJIT_SUB, typereg, 0, typereg, 0, SLJIT_IMM, (value) - typeoffset); \
+    else \
+      OP2(SLJIT_ADD, typereg, 0, typereg, 0, SLJIT_IMM, typeoffset - (value)); \
+    } \
+  typeoffset = (value);
+
+#define SET_CHAR_OFFSET(value) \
+  if ((value) != charoffset) \
+    { \
+    if ((value) > charoffset) \
+      OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, (value) - charoffset); \
+    else \
+      OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, charoffset - (value)); \
+    } \
+  charoffset = (value);
+
+static void compile_xclass_trypath(compiler_common *common, pcre_uchar *cc, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+jump_list *found = NULL;
+jump_list **list = (*cc & XCL_NOT) == 0 ? &found : backtracks;
+unsigned int c;
+int compares;
+struct sljit_jump *jump = NULL;
+pcre_uchar *ccbegin;
+#ifdef SUPPORT_UCP
+BOOL needstype = FALSE, needsscript = FALSE, needschar = FALSE;
+BOOL charsaved = FALSE;
+int typereg = TMP1, scriptreg = TMP1;
+unsigned int typeoffset;
+#endif
+int invertcmp, numberofcmps;
+unsigned int charoffset;
+
+/* Although SUPPORT_UTF must be defined, we are not necessary in utf mode. */
+detect_partial_match(common, backtracks);
+read_char(common);
+
+if ((*cc++ & XCL_MAP) != 0)
+  {
+  OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
+#ifndef COMPILE_PCRE8
+  jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#elif defined SUPPORT_UTF
+  if (common->utf)
+    jump = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+#endif
+
+  OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
+  OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
+  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_w)cc);
+  OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
+  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+  add_jump(compiler, list, JUMP(SLJIT_C_NOT_ZERO));
+
+#ifndef COMPILE_PCRE8
+  JUMPHERE(jump);
+#elif defined SUPPORT_UTF
+  if (common->utf)
+    JUMPHERE(jump);
+#endif
+  OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+#ifdef SUPPORT_UCP
+  charsaved = TRUE;
+#endif
+  cc += 32 / sizeof(pcre_uchar);
+  }
+
+/* Scanning the necessary info. */
+ccbegin = cc;
+compares = 0;
+while (*cc != XCL_END)
+  {
+  compares++;
+  if (*cc == XCL_SINGLE)
+    {
+    cc += 2;
+#ifdef SUPPORT_UTF
+    if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+#ifdef SUPPORT_UCP
+    needschar = TRUE;
+#endif
+    }
+  else if (*cc == XCL_RANGE)
+    {
+    cc += 2;
+#ifdef SUPPORT_UTF
+    if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+    cc++;
+#ifdef SUPPORT_UTF
+    if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+#ifdef SUPPORT_UCP
+    needschar = TRUE;
+#endif
+    }
+#ifdef SUPPORT_UCP
+  else
+    {
+    SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP);
+    cc++;
+    switch(*cc)
+      {
+      case PT_ANY:
+      break;
+
+      case PT_LAMP:
+      case PT_GC:
+      case PT_PC:
+      case PT_ALNUM:
+      needstype = TRUE;
+      break;
+
+      case PT_SC:
+      needsscript = TRUE;
+      break;
+
+      case PT_SPACE:
+      case PT_PXSPACE:
+      case PT_WORD:
+      needstype = TRUE;
+      needschar = TRUE;
+      break;
+
+      default:
+      SLJIT_ASSERT_STOP();
+      break;
+      }
+    cc += 2;
+    }
+#endif
+  }
+
+#ifdef SUPPORT_UCP
+/* Simple register allocation. TMP1 is preferred if possible. */
+if (needstype || needsscript)
+  {
+  if (needschar && !charsaved)
+    OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
+  add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+  if (needschar)
+    {
+    if (needstype)
+      {
+      OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
+      typereg = RETURN_ADDR;
+      }
+
+    if (needsscript)
+      scriptreg = TMP3;
+    OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+    }
+  else if (needstype && needsscript)
+    scriptreg = TMP3;
+  /* In all other cases only one of them was specified, and that can goes to TMP1. */
+
+  if (needsscript)
+    {
+    if (scriptreg == TMP1)
+      {
+      OP1(SLJIT_MOV, scriptreg, 0, SLJIT_IMM, (sljit_w)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, script));
+      OP1(SLJIT_MOV_UB, scriptreg, 0, SLJIT_MEM2(scriptreg, TMP2), 3);
+      }
+    else
+      {
+      OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 3);
+      OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, (sljit_w)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, script));
+      OP1(SLJIT_MOV_UB, scriptreg, 0, SLJIT_MEM1(TMP2), 0);
+      }
+    }
+  }
+#endif
+
+/* Generating code. */
+cc = ccbegin;
+charoffset = 0;
+numberofcmps = 0;
+#ifdef SUPPORT_UCP
+typeoffset = 0;
+#endif
+
+while (*cc != XCL_END)
+  {
+  compares--;
+  invertcmp = (compares == 0 && list != backtracks);
+  jump = NULL;
+
+  if (*cc == XCL_SINGLE)
+    {
+    cc ++;
+#ifdef SUPPORT_UTF
+    if (common->utf)
+      {
+      GETCHARINC(c, cc);
+      }
+    else
+#endif
+      c = *cc++;
+
+    if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE))
+      {
+      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c - charoffset);
+      COND_VALUE(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+      numberofcmps++;
+      }
+    else if (numberofcmps > 0)
+      {
+      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c - charoffset);
+      COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+      jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+      numberofcmps = 0;
+      }
+    else
+      {
+      jump = CMP(SLJIT_C_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, c - charoffset);
+      numberofcmps = 0;
+      }
+    }
+  else if (*cc == XCL_RANGE)
+    {
+    cc ++;
+#ifdef SUPPORT_UTF
+    if (common->utf)
+      {
+      GETCHARINC(c, cc);
+      }
+    else
+#endif
+      c = *cc++;
+    SET_CHAR_OFFSET(c);
+#ifdef SUPPORT_UTF
+    if (common->utf)
+      {
+      GETCHARINC(c, cc);
+      }
+    else
+#endif
+      c = *cc++;
+    if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE))
+      {
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c - charoffset);
+      COND_VALUE(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_C_LESS_EQUAL);
+      numberofcmps++;
+      }
+    else if (numberofcmps > 0)
+      {
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c - charoffset);
+      COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_LESS_EQUAL);
+      jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+      numberofcmps = 0;
+      }
+    else
+      {
+      jump = CMP(SLJIT_C_LESS_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, c - charoffset);
+      numberofcmps = 0;
+      }
+    }
+#ifdef SUPPORT_UCP
+  else
+    {
+    if (*cc == XCL_NOTPROP)
+      invertcmp ^= 0x1;
+    cc++;
+    switch(*cc)
+      {
+      case PT_ANY:
+      if (list != backtracks)
+        {
+        if ((cc[-1] == XCL_NOTPROP && compares > 0) || (cc[-1] == XCL_PROP && compares == 0))
+          continue;
+        }
+      else if (cc[-1] == XCL_NOTPROP)
+        continue;
+      jump = JUMP(SLJIT_JUMP);
+      break;
+
+      case PT_LAMP:
+      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - typeoffset);
+      COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ll - typeoffset);
+      COND_VALUE(SLJIT_OR, TMP2, 0, SLJIT_C_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lt - typeoffset);
+      COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+      jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+      break;
+
+      case PT_GC:
+      c = PRIV(ucp_typerange)[(int)cc[1] * 2];
+      SET_TYPE_OFFSET(c);
+      jump = CMP(SLJIT_C_LESS_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, PRIV(ucp_typerange)[(int)cc[1] * 2 + 1] - c);
+      break;
+
+      case PT_PC:
+      jump = CMP(SLJIT_C_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, (int)cc[1] - typeoffset);
+      break;
+
+      case PT_SC:
+      jump = CMP(SLJIT_C_EQUAL ^ invertcmp, scriptreg, 0, SLJIT_IMM, (int)cc[1]);
+      break;
+
+      case PT_SPACE:
+      case PT_PXSPACE:
+      if (*cc == PT_SPACE)
+        {
+        OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
+        jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 11 - charoffset);
+        }
+      SET_CHAR_OFFSET(9);
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 13 - 9);
+      COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_LESS_EQUAL);
+      if (*cc == PT_SPACE)
+        JUMPHERE(jump);
+
+      SET_TYPE_OFFSET(ucp_Zl);
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Zl);
+      COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_LESS_EQUAL);
+      jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+      break;
+
+      case PT_WORD:
+      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE - charoffset);
+      COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);
+      /* ... fall through */
+
+      case PT_ALNUM:
+      SET_TYPE_OFFSET(ucp_Ll);
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+      COND_VALUE((*cc == PT_ALNUM) ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_C_LESS_EQUAL);
+      SET_TYPE_OFFSET(ucp_Nd);
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+      COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_LESS_EQUAL);
+      jump = JUMP(SLJIT_C_NOT_ZERO ^ invertcmp);
+      break;
+      }
+    cc += 2;
+    }
+#endif
+
+  if (jump != NULL)
+    add_jump(compiler, compares > 0 ? list : backtracks, jump);
+  }
+
+if (found != NULL)
+  set_jumps(found, LABEL());
+}
+
+#undef SET_TYPE_OFFSET
+#undef SET_CHAR_OFFSET
+
+#endif
+
+static pcre_uchar *compile_char1_trypath(compiler_common *common, pcre_uchar type, pcre_uchar *cc, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+int length;
+unsigned int c, oc, bit;
+compare_context context;
+struct sljit_jump *jump[4];
+#ifdef SUPPORT_UTF
+struct sljit_label *label;
+#ifdef SUPPORT_UCP
+pcre_uchar propdata[5];
+#endif
+#endif
+
+switch(type)
+  {
+  case OP_SOD:
+  OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+  add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, TMP1, 0));
+  return cc;
+
+  case OP_SOM:
+  OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+  add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, TMP1, 0));
+  return cc;
+
+  case OP_NOT_WORD_BOUNDARY:
+  case OP_WORD_BOUNDARY:
+  add_jump(compiler, &common->wordboundary, JUMP(SLJIT_FAST_CALL));
+  add_jump(compiler, backtracks, JUMP(type == OP_NOT_WORD_BOUNDARY ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+  return cc;
+
+  case OP_NOT_DIGIT:
+  case OP_DIGIT:
+  detect_partial_match(common, backtracks);
+  read_char8_type(common);
+  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_digit);
+  add_jump(compiler, backtracks, JUMP(type == OP_DIGIT ? SLJIT_C_ZERO : SLJIT_C_NOT_ZERO));
+  return cc;
+
+  case OP_NOT_WHITESPACE:
+  case OP_WHITESPACE:
+  detect_partial_match(common, backtracks);
+  read_char8_type(common);
+  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_space);
+  add_jump(compiler, backtracks, JUMP(type == OP_WHITESPACE ? SLJIT_C_ZERO : SLJIT_C_NOT_ZERO));
+  return cc;
+
+  case OP_NOT_WORDCHAR:
+  case OP_WORDCHAR:
+  detect_partial_match(common, backtracks);
+  read_char8_type(common);
+  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_word);
+  add_jump(compiler, backtracks, JUMP(type == OP_WORDCHAR ? SLJIT_C_ZERO : SLJIT_C_NOT_ZERO));
+  return cc;
+
+  case OP_ANY:
+  detect_partial_match(common, backtracks);
+  read_char(common);
+  if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+    {
+    jump[0] = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff);
+    if (common->mode != JIT_PARTIAL_HARD_COMPILE)
+      jump[1] = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+    else
+      jump[1] = check_str_end(common);
+
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+    add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, common->newline & 0xff));
+    if (jump[1] != NULL)
+      JUMPHERE(jump[1]);
+    JUMPHERE(jump[0]);
+    }
+  else
+    check_newlinechar(common, common->nltype, backtracks, TRUE);
+  return cc;
+
+  case OP_ALLANY:
+  detect_partial_match(common, backtracks);
+#ifdef SUPPORT_UTF
+  if (common->utf)
+    {
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+#ifdef COMPILE_PCRE8
+    jump[0] = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+    OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_w)PRIV(utf8_table4) - 0xc0);
+    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+#else /* COMPILE_PCRE8 */
+#ifdef COMPILE_PCRE16
+    jump[0] = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
+    OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
+    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+    COND_VALUE(SLJIT_MOV, TMP1, 0, SLJIT_C_EQUAL);
+    OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+#endif /* COMPILE_PCRE16 */
+#endif /* COMPILE_PCRE8 */
+    JUMPHERE(jump[0]);
+    return cc;
+    }
+#endif
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+  return cc;
+
+  case OP_ANYBYTE:
+  detect_partial_match(common, backtracks);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+  return cc;
+
+#ifdef SUPPORT_UTF
+#ifdef SUPPORT_UCP
+  case OP_NOTPROP:
+  case OP_PROP:
+  propdata[0] = 0;
+  propdata[1] = type == OP_NOTPROP ? XCL_NOTPROP : XCL_PROP;
+  propdata[2] = cc[0];
+  propdata[3] = cc[1];
+  propdata[4] = XCL_END;
+  compile_xclass_trypath(common, propdata, backtracks);
+  return cc + 2;
+#endif
+#endif
+
+  case OP_ANYNL:
+  detect_partial_match(common, backtracks);
+  read_char(common);
+  jump[0] = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
+  /* We don't need to handle soft partial matching case. */
+  if (common->mode != JIT_PARTIAL_HARD_COMPILE)
+    jump[1] = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+  else
+    jump[1] = check_str_end(common);
+  OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+  jump[2] = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL);
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+  jump[3] = JUMP(SLJIT_JUMP);
+  JUMPHERE(jump[0]);
+  check_newlinechar(common, common->bsr_nltype, backtracks, FALSE);
+  JUMPHERE(jump[1]);
+  JUMPHERE(jump[2]);
+  JUMPHERE(jump[3]);
+  return cc;
+
+  case OP_NOT_HSPACE:
+  case OP_HSPACE:
+  detect_partial_match(common, backtracks);
+  read_char(common);
+  add_jump(compiler, &common->hspace, JUMP(SLJIT_FAST_CALL));
+  add_jump(compiler, backtracks, JUMP(type == OP_NOT_HSPACE ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+  return cc;
+
+  case OP_NOT_VSPACE:
+  case OP_VSPACE:
+  detect_partial_match(common, backtracks);
+  read_char(common);
+  add_jump(compiler, &common->vspace, JUMP(SLJIT_FAST_CALL));
+  add_jump(compiler, backtracks, JUMP(type == OP_NOT_VSPACE ? SLJIT_C_NOT_ZERO : SLJIT_C_ZERO));
+  return cc;
+
+#ifdef SUPPORT_UCP
+  case OP_EXTUNI:
+  detect_partial_match(common, backtracks);
+  read_char(common);
+  add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+  OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Mc);
+  add_jump(compiler, backtracks, CMP(SLJIT_C_LESS_EQUAL, TMP1, 0, SLJIT_IMM, ucp_Mn - ucp_Mc));
+
+  label = LABEL();
+  jump[0] = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+  OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0);
+  read_char(common);
+  add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
+  OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Mc);
+  CMPTO(SLJIT_C_LESS_EQUAL, TMP1, 0, SLJIT_IMM, ucp_Mn - ucp_Mc, label);
+
+  OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0);
+  JUMPHERE(jump[0]);
+  if (common->mode == JIT_PARTIAL_HARD_COMPILE)
+    {
+    jump[0] = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);
+    /* Since we successfully read a char above, partial matching must occure. */
+    check_partial(common, TRUE);
+    JUMPHERE(jump[0]);
+    }
+  return cc;
+#endif
+
+  case OP_EODN:
+  /* Requires rather complex checks. */
+  jump[0] = CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
+  if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+    {
+    OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+    if (common->mode == JIT_COMPILE)
+      add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_END, 0));
+    else
+      {
+      jump[1] = CMP(SLJIT_C_EQUAL, TMP2, 0, STR_END, 0);
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
+      COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_LESS);
+      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff);
+      COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_NOT_EQUAL);
+      add_jump(compiler, backtracks, JUMP(SLJIT_C_NOT_EQUAL));
+      check_partial(common, TRUE);
+      add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+      JUMPHERE(jump[1]);
+      }
+    OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
+    }
+  else if (common->nltype == NLTYPE_FIXED)
+    {
+    OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_END, 0));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline));
+    }
+  else
+    {
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+    jump[1] = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
+    OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+    OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
+    jump[2] = JUMP(SLJIT_C_GREATER);
+    add_jump(compiler, backtracks, JUMP(SLJIT_C_LESS));
+    /* Equal. */
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+    jump[3] = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL);
+    add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+
+    JUMPHERE(jump[1]);
+    if (common->nltype == NLTYPE_ANYCRLF)
+      {
+      OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+      add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, TMP2, 0, STR_END, 0));
+      add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL));
+      }
+    else
+      {
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, STR_PTR, 0);
+      read_char(common);
+      add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, STR_END, 0));
+      add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
+      add_jump(compiler, backtracks, JUMP(SLJIT_C_ZERO));
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1);
+      }
+    JUMPHERE(jump[2]);
+    JUMPHERE(jump[3]);
+    }
+  JUMPHERE(jump[0]);
+  check_partial(common, FALSE);
+  return cc;
+
+  case OP_EOD:
+  add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0));
+  check_partial(common, FALSE);
+  return cc;
+
+  case OP_CIRC:
+  OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin));
+  add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER, STR_PTR, 0, TMP1, 0));
+  OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, notbol));
+  add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+  return cc;
+
+  case OP_CIRCM:
+  OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin));
+  jump[1] = CMP(SLJIT_C_GREATER, STR_PTR, 0, TMP1, 0);
+  OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, notbol));
+  add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+  jump[0] = JUMP(SLJIT_JUMP);
+  JUMPHERE(jump[1]);
+
+  add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
+  if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+    {
+    OP2(SLJIT_SUB, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, TMP2, 0, TMP1, 0));
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2));
+    OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
+    }
+  else
+    {
+    skip_char_back(common);
+    read_char(common);
+    check_newlinechar(common, common->nltype, backtracks, FALSE);
+    }
+  JUMPHERE(jump[0]);
+  return cc;
+
+  case OP_DOLL:
+  OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
+  OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, noteol));
+  add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+
+  if (!common->endonly)
+    compile_char1_trypath(common, OP_EODN, cc, backtracks);
+  else
+    {
+    add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0));
+    check_partial(common, FALSE);
+    }
+  return cc;
+
+  case OP_DOLLM:
+  jump[1] = CMP(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0);
+  OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
+  OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, noteol));
+  add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+  check_partial(common, FALSE);
+  jump[0] = JUMP(SLJIT_JUMP);
+  JUMPHERE(jump[1]);
+
+  if (common->nltype == NLTYPE_FIXED && common->newline > 255)
+    {
+    OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
+    OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
+    if (common->mode == JIT_COMPILE)
+      add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER, TMP2, 0, STR_END, 0));
+    else
+      {
+      jump[1] = CMP(SLJIT_C_LESS_EQUAL, TMP2, 0, STR_END, 0);
+      /* STR_PTR = STR_END - IN_UCHARS(1) */
+      add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
+      check_partial(common, TRUE);
+      add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+      JUMPHERE(jump[1]);
+      }
+
+    OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
+    }
+  else
+    {
+    peek_char(common);
+    check_newlinechar(common, common->nltype, backtracks, FALSE);
+    }
+  JUMPHERE(jump[0]);
+  return cc;
+
+  case OP_CHAR:
+  case OP_CHARI:
+  length = 1;
+#ifdef SUPPORT_UTF
+  if (common->utf && HAS_EXTRALEN(*cc)) length += GET_EXTRALEN(*cc);
+#endif
+  if (common->mode == JIT_COMPILE && (type == OP_CHAR || !char_has_othercase(common, cc) || char_get_othercase_bit(common, cc) != 0))
+    {
+    OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(length));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER, STR_PTR, 0, STR_END, 0));
+
+    context.length = IN_UCHARS(length);
+    context.sourcereg = -1;
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+    context.ucharptr = 0;
+#endif
+    return byte_sequence_compare(common, type == OP_CHARI, cc, &context, backtracks);
+    }
+  detect_partial_match(common, backtracks);
+  read_char(common);
+#ifdef SUPPORT_UTF
+  if (common->utf)
+    {
+    GETCHAR(c, cc);
+    }
+  else
+#endif
+    c = *cc;
+  if (type == OP_CHAR || !char_has_othercase(common, cc))
+    {
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c));
+    return cc + length;
+    }
+  oc = char_othercase(common, c);
+  bit = c ^ oc;
+  if (ispowerof2(bit))
+    {
+    OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit);
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c | bit));
+    return cc + length;
+    }
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, c);
+  COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, char_othercase(common, c));
+  COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+  add_jump(compiler, backtracks, JUMP(SLJIT_C_ZERO));
+  return cc + length;
+
+  case OP_NOT:
+  case OP_NOTI:
+  detect_partial_match(common, backtracks);
+  length = 1;
+#ifdef SUPPORT_UTF
+  if (common->utf)
+    {
+#ifdef COMPILE_PCRE8
+    c = *cc;
+    if (c < 128)
+      {
+      OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
+      if (type == OP_NOT || !char_has_othercase(common, cc))
+        add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, c));
+      else
+        {
+        /* Since UTF8 code page is fixed, we know that c is in [a-z] or [A-Z] range. */
+        OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x20);
+        add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, c | 0x20));
+        }
+      /* Skip the variable-length character. */
+      OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+      jump[0] = CMP(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
+      OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_w)PRIV(utf8_table4) - 0xc0);
+      OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
+      JUMPHERE(jump[0]);
+      return cc + 1;
+      }
+    else
+#endif /* COMPILE_PCRE8 */
+      {
+      GETCHARLEN(c, cc, length);
+      read_char(common);
+      }
+    }
+  else
+#endif /* SUPPORT_UTF */
+    {
+    read_char(common);
+    c = *cc;
+    }
+
+  if (type == OP_NOT || !char_has_othercase(common, cc))
+    add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, c));
+  else
+    {
+    oc = char_othercase(common, c);
+    bit = c ^ oc;
+    if (ispowerof2(bit))
+      {
+      OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit);
+      add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, c | bit));
+      }
+    else
+      {
+      add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, c));
+      add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, oc));
+      }
+    }
+  return cc + length;
+
+  case OP_CLASS:
+  case OP_NCLASS:
+  detect_partial_match(common, backtracks);
+  read_char(common);
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+  jump[0] = NULL;
+#ifdef COMPILE_PCRE8
+  /* This check only affects 8 bit mode. In other modes, we
+  always need to compare the value with 255. */
+  if (common->utf)
+#endif /* COMPILE_PCRE8 */
+    {
+    jump[0] = CMP(SLJIT_C_GREATER, TMP1, 0, SLJIT_IMM, 255);
+    if (type == OP_CLASS)
+      {
+      add_jump(compiler, backtracks, jump[0]);
+      jump[0] = NULL;
+      }
+    }
+#endif /* SUPPORT_UTF || !COMPILE_PCRE8 */
+  OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
+  OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
+  OP1(SLJIT_MOV_UB, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_w)cc);
+  OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
+  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+  add_jump(compiler, backtracks, JUMP(SLJIT_C_ZERO));
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+  if (jump[0] != NULL)
+    JUMPHERE(jump[0]);
+#endif /* SUPPORT_UTF || !COMPILE_PCRE8 */
+  return cc + 32 / sizeof(pcre_uchar);
+
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16
+  case OP_XCLASS:
+  compile_xclass_trypath(common, cc + LINK_SIZE, backtracks);
+  return cc + GET(cc, 0) - 1;
+#endif
+
+  case OP_REVERSE:
+  length = GET(cc, 0);
+  if (length == 0)
+    return cc + LINK_SIZE;
+  OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+#ifdef SUPPORT_UTF
+  if (common->utf)
+    {
+    OP1(SLJIT_MOV, TMP3, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, length);
+    label = LABEL();
+    add_jump(compiler, backtracks, CMP(SLJIT_C_LESS_EQUAL, STR_PTR, 0, TMP3, 0));
+    skip_char_back(common);
+    OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
+    JUMPTO(SLJIT_C_NOT_ZERO, label);
+    }
+  else
+#endif
+    {
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
+    OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(length));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_LESS, STR_PTR, 0, TMP1, 0));
+    }
+  check_start_used_ptr(common);
+  return cc + LINK_SIZE;
+  }
+SLJIT_ASSERT_STOP();
+return cc;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_charn_trypath(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, jump_list **backtracks)
+{
+/* This function consumes at least one input character. */
+/* To decrease the number of length checks, we try to concatenate the fixed length character sequences. */
+DEFINE_COMPILER;
+pcre_uchar *ccbegin = cc;
+compare_context context;
+int size;
+
+context.length = 0;
+do
+  {
+  if (cc >= ccend)
+    break;
+
+  if (*cc == OP_CHAR)
+    {
+    size = 1;
+#ifdef SUPPORT_UTF
+    if (common->utf && HAS_EXTRALEN(cc[1]))
+      size += GET_EXTRALEN(cc[1]);
+#endif
+    }
+  else if (*cc == OP_CHARI)
+    {
+    size = 1;
+#ifdef SUPPORT_UTF
+    if (common->utf)
+      {
+      if (char_has_othercase(common, cc + 1) && char_get_othercase_bit(common, cc + 1) == 0)
+        size = 0;
+      else if (HAS_EXTRALEN(cc[1]))
+        size += GET_EXTRALEN(cc[1]);
+      }
+    else
+#endif
+    if (char_has_othercase(common, cc + 1) && char_get_othercase_bit(common, cc + 1) == 0)
+      size = 0;
+    }
+  else
+    size = 0;
+
+  cc += 1 + size;
+  context.length += IN_UCHARS(size);
+  }
+while (size > 0 && context.length <= 128);
+
+cc = ccbegin;
+if (context.length > 0)
+  {
+  /* We have a fixed-length byte sequence. */
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, context.length);
+  add_jump(compiler, backtracks, CMP(SLJIT_C_GREATER, STR_PTR, 0, STR_END, 0));
+
+  context.sourcereg = -1;
+#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
+  context.ucharptr = 0;
+#endif
+  do cc = byte_sequence_compare(common, *cc == OP_CHARI, cc + 1, &context, backtracks); while (context.length > 0);
+  return cc;
+  }
+
+/* A non-fixed length character will be checked if length == 0. */
+return compile_char1_trypath(common, *cc, cc + 1, backtracks);
+}
+
+static struct sljit_jump *compile_ref_checks(compiler_common *common, pcre_uchar *cc, jump_list **backtracks)
+{
+DEFINE_COMPILER;
+int offset = GET2(cc, 1) << 1;
+
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+if (!common->jscript_compat)
+  {
+  if (backtracks == NULL)
+    {
+    /* OVECTOR(1) contains the "string begin - 1" constant. */
+    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1));
+    COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_EQUAL);
+    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+    COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_EQUAL);
+    return JUMP(SLJIT_C_NOT_ZERO);
+    }
+  add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1)));
+  }
+return CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+}
+
+/* Forward definitions. */
+static void compile_trypath(compiler_common *, pcre_uchar *, pcre_uchar *, backtrack_common *);
+static void compile_backtrackpath(compiler_common *, struct backtrack_common *);
+
+#define PUSH_BACKTRACK(size, ccstart, error) \
+  do \
+    { \
+    backtrack = sljit_alloc_memory(compiler, (size)); \
+    if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
+      return error; \
+    memset(backtrack, 0, size); \
+    backtrack->prev = parent->top; \
+    backtrack->cc = (ccstart); \
+    parent->top = backtrack; \
+    } \
+  while (0)
+
+#define PUSH_BACKTRACK_NOVALUE(size, ccstart) \
+  do \
+    { \
+    backtrack = sljit_alloc_memory(compiler, (size)); \
+    if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
+      return; \
+    memset(backtrack, 0, size); \
+    backtrack->prev = parent->top; \
+    backtrack->cc = (ccstart); \
+    parent->top = backtrack; \
+    } \
+  while (0)
+
+#define BACKTRACK_AS(type) ((type *)backtrack)
+
+static pcre_uchar *compile_ref_trypath(compiler_common *common, pcre_uchar *cc, jump_list **backtracks, BOOL withchecks, BOOL emptyfail)
+{
+DEFINE_COMPILER;
+int offset = GET2(cc, 1) << 1;
+struct sljit_jump *jump = NULL;
+struct sljit_jump *partial;
+struct sljit_jump *nopartial;
+
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+/* OVECTOR(1) contains the "string begin - 1" constant. */
+if (withchecks && !common->jscript_compat)
+  add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1)));
+
+#if defined SUPPORT_UTF && defined SUPPORT_UCP
+if (common->utf && *cc == OP_REFI)
+  {
+  SLJIT_ASSERT(TMP1 == SLJIT_TEMPORARY_REG1 && STACK_TOP == SLJIT_TEMPORARY_REG2 && TMP2 == SLJIT_TEMPORARY_REG3);
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+  if (withchecks)
+    jump = CMP(SLJIT_C_EQUAL, TMP1, 0, TMP2, 0);
+
+  /* Needed to save important temporary registers. */
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, STACK_TOP, 0);
+  OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG2, 0, ARGUMENTS, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_TEMPORARY_REG2), SLJIT_OFFSETOF(jit_arguments, uchar_ptr), STR_PTR, 0);
+  sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_utf_caselesscmp));
+  OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+  if (common->mode == JIT_COMPILE)
+    add_jump(compiler, backtracks, CMP(SLJIT_C_LESS_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1));
+  else
+    {
+    add_jump(compiler, backtracks, CMP(SLJIT_C_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0));
+    nopartial = CMP(SLJIT_C_NOT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1);
+    check_partial(common, FALSE);
+    add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+    JUMPHERE(nopartial);
+    }
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_RETURN_REG, 0);
+  }
+else
+#endif /* SUPPORT_UTF && SUPPORT_UCP */
+  {
+  OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), TMP1, 0);
+  if (withchecks)
+    jump = JUMP(SLJIT_C_ZERO);
+
+  OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
+  partial = CMP(SLJIT_C_GREATER, STR_PTR, 0, STR_END, 0);
+  if (common->mode == JIT_COMPILE)
+    add_jump(compiler, backtracks, partial);
+
+  add_jump(compiler, *cc == OP_REF ? &common->casefulcmp : &common->caselesscmp, JUMP(SLJIT_FAST_CALL));
+  add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+
+  if (common->mode != JIT_COMPILE)
+    {
+    nopartial = JUMP(SLJIT_JUMP);
+    JUMPHERE(partial);
+    /* TMP2 -= STR_END - STR_PTR */
+    OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, STR_PTR, 0);
+    OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, STR_END, 0);
+    partial = CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, 0);
+    OP1(SLJIT_MOV, STR_PTR, 0, STR_END, 0);
+    add_jump(compiler, *cc == OP_REF ? &common->casefulcmp : &common->caselesscmp, JUMP(SLJIT_FAST_CALL));
+    add_jump(compiler, backtracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+    JUMPHERE(partial);
+    check_partial(common, FALSE);
+    add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
+    JUMPHERE(nopartial);
+    }
+  }
+
+if (jump != NULL)
+  {
+  if (emptyfail)
+    add_jump(compiler, backtracks, jump);
+  else
+    JUMPHERE(jump);
+  }
+return cc + 1 + IMM2_SIZE;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_ref_iterator_trypath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar type;
+struct sljit_label *label;
+struct sljit_jump *zerolength;
+struct sljit_jump *jump = NULL;
+pcre_uchar *ccbegin = cc;
+int min = 0, max = 0;
+BOOL minimize;
+
+PUSH_BACKTRACK(sizeof(iterator_backtrack), cc, NULL);
+
+type = cc[1 + IMM2_SIZE];
+minimize = (type & 0x1) != 0;
+switch(type)
+  {
+  case OP_CRSTAR:
+  case OP_CRMINSTAR:
+  min = 0;
+  max = 0;
+  cc += 1 + IMM2_SIZE + 1;
+  break;
+  case OP_CRPLUS:
+  case OP_CRMINPLUS:
+  min = 1;
+  max = 0;
+  cc += 1 + IMM2_SIZE + 1;
+  break;
+  case OP_CRQUERY:
+  case OP_CRMINQUERY:
+  min = 0;
+  max = 1;
+  cc += 1 + IMM2_SIZE + 1;
+  break;
+  case OP_CRRANGE:
+  case OP_CRMINRANGE:
+  min = GET2(cc, 1 + IMM2_SIZE + 1);
+  max = GET2(cc, 1 + IMM2_SIZE + 1 + IMM2_SIZE);
+  cc += 1 + IMM2_SIZE + 1 + 2 * IMM2_SIZE;
+  break;
+  default:
+  SLJIT_ASSERT_STOP();
+  break;
+  }
+
+if (!minimize)
+  {
+  if (min == 0)
+    {
+    allocate_stack(common, 2);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
+    /* Temporary release of STR_PTR. */
+    OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_w));
+    zerolength = compile_ref_checks(common, ccbegin, NULL);
+    /* Restore if not zero length. */
+    OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_w));
+    }
+  else
+    {
+    allocate_stack(common, 1);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+    zerolength = compile_ref_checks(common, ccbegin, &backtrack->topbacktracks);
+    }
+
+  if (min > 1 || max > 1)
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, 0);
+
+  label = LABEL();
+  compile_ref_trypath(common, ccbegin, &backtrack->topbacktracks, FALSE, FALSE);
+
+  if (min > 1 || max > 1)
+    {
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+    OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, TMP1, 0);
+    if (min > 1)
+      CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, min, label);
+    if (max > 1)
+      {
+      jump = CMP(SLJIT_C_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, max);
+      allocate_stack(common, 1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+      JUMPTO(SLJIT_JUMP, label);
+      JUMPHERE(jump);
+      }
+    }
+
+  if (max == 0)
+    {
+    /* Includes min > 1 case as well. */
+    allocate_stack(common, 1);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+    JUMPTO(SLJIT_JUMP, label);
+    }
+
+  JUMPHERE(zerolength);
+  BACKTRACK_AS(iterator_backtrack)->trypath = LABEL();
+
+  decrease_call_count(common);
+  return cc;
+  }
+
+allocate_stack(common, 2);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+if (type != OP_CRMINSTAR)
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
+
+if (min == 0)
+  {
+  zerolength = compile_ref_checks(common, ccbegin, NULL);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  jump = JUMP(SLJIT_JUMP);
+  }
+else
+  zerolength = compile_ref_checks(common, ccbegin, &backtrack->topbacktracks);
+
+BACKTRACK_AS(iterator_backtrack)->trypath = LABEL();
+if (max > 0)
+  add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_GREATER_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, max));
+
+compile_ref_trypath(common, ccbegin, &backtrack->topbacktracks, TRUE, TRUE);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+
+if (min > 1)
+  {
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+  OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+  CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, min, BACKTRACK_AS(iterator_backtrack)->trypath);
+  }
+else if (max > 0)
+  OP2(SLJIT_ADD, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 1);
+
+if (jump != NULL)
+  JUMPHERE(jump);
+JUMPHERE(zerolength);
+
+decrease_call_count(common);
+return cc;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_recurse_trypath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+recurse_entry *entry = common->entries;
+recurse_entry *prev = NULL;
+int start = GET(cc, 1);
+
+PUSH_BACKTRACK(sizeof(recurse_backtrack), cc, NULL);
+while (entry != NULL)
+  {
+  if (entry->start == start)
+    break;
+  prev = entry;
+  entry = entry->next;
+  }
+
+if (entry == NULL)
+  {
+  entry = sljit_alloc_memory(compiler, sizeof(recurse_entry));
+  if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+    return NULL;
+  entry->next = NULL;
+  entry->entry = NULL;
+  entry->calls = NULL;
+  entry->start = start;
+
+  if (prev != NULL)
+    prev->next = entry;
+  else
+    common->entries = entry;
+  }
+
+if (common->has_set_som && common->mark_ptr != 0)
+  {
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+  allocate_stack(common, 2);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+  }
+else if (common->has_set_som || common->mark_ptr != 0)
+  {
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->has_set_som ? (int)(OVECTOR(0)) : common->mark_ptr);
+  allocate_stack(common, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+  }
+
+if (entry->entry == NULL)
+  add_jump(compiler, &entry->calls, JUMP(SLJIT_FAST_CALL));
+else
+  JUMPTO(SLJIT_FAST_CALL, entry->entry);
+/* Leave if the match is failed. */
+add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 0));
+return cc + 1 + LINK_SIZE;
+}
+
+static pcre_uchar *compile_assert_trypath(compiler_common *common, pcre_uchar *cc, assert_backtrack *backtrack, BOOL conditional)
+{
+DEFINE_COMPILER;
+int framesize;
+int localptr;
+backtrack_common altbacktrack;
+pcre_uchar *ccbegin;
+pcre_uchar opcode;
+pcre_uchar bra = OP_BRA;
+jump_list *tmp = NULL;
+jump_list **target = (conditional) ? &backtrack->condfailed : &backtrack->common.topbacktracks;
+jump_list **found;
+/* Saving previous accept variables. */
+struct sljit_label *save_leavelabel = common->leavelabel;
+struct sljit_label *save_acceptlabel = common->acceptlabel;
+jump_list *save_leave = common->leave;
+jump_list *save_accept = common->accept;
+struct sljit_jump *jump;
+struct sljit_jump *brajump = NULL;
+
+if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
+  {
+  SLJIT_ASSERT(!conditional);
+  bra = *cc;
+  cc++;
+  }
+localptr = PRIV_DATA(cc);
+SLJIT_ASSERT(localptr != 0);
+framesize = get_framesize(common, cc, FALSE);
+backtrack->framesize = framesize;
+backtrack->localptr = localptr;
+opcode = *cc;
+SLJIT_ASSERT(opcode >= OP_ASSERT && opcode <= OP_ASSERTBACK_NOT);
+found = (opcode == OP_ASSERT || opcode == OP_ASSERTBACK) ? &tmp : target;
+ccbegin = cc;
+cc += GET(cc, 1);
+
+if (bra == OP_BRAMINZERO)
+  {
+  /* This is a braminzero backtrack path. */
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  free_stack(common, 1);
+  brajump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+  }
+
+if (framesize < 0)
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, STACK_TOP, 0);
+  allocate_stack(common, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  }
+else
+  {
+  allocate_stack(common, framesize + 2);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+  OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, -STACK(framesize + 1));
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, TMP2, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+  init_frame(common, ccbegin, framesize + 1, 2, FALSE);
+  }
+
+memset(&altbacktrack, 0, sizeof(backtrack_common));
+common->leavelabel = NULL;
+common->leave = NULL;
+while (1)
+  {
+  common->acceptlabel = NULL;
+  common->accept = NULL;
+  altbacktrack.top = NULL;
+  altbacktrack.topbacktracks = NULL;
+
+  if (*ccbegin == OP_ALT)
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+
+  altbacktrack.cc = ccbegin;
+  compile_trypath(common, ccbegin + 1 + LINK_SIZE, cc, &altbacktrack);
+  if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+    {
+    common->leavelabel = save_leavelabel;
+    common->acceptlabel = save_acceptlabel;
+    common->leave = save_leave;
+    common->accept = save_accept;
+    return NULL;
+    }
+  common->acceptlabel = LABEL();
+  if (common->accept != NULL)
+    set_jumps(common->accept, common->acceptlabel);
+
+  /* Reset stack. */
+  if (framesize < 0)
+    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+  else {
+    if ((opcode != OP_ASSERT_NOT && opcode != OP_ASSERTBACK_NOT) || conditional)
+      {
+      /* We don't need to keep the STR_PTR, only the previous localptr. */
+      OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_w));
+      }
+    else
+      {
+      OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+      }
+  }
+
+  if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
+    {
+    /* We know that STR_PTR was stored on the top of the stack. */
+    if (conditional)
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), 0);
+    else if (bra == OP_BRAZERO)
+      {
+      if (framesize < 0)
+        OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), 0);
+      else
+        {
+        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_w));
+        OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (framesize + 1) * sizeof(sljit_w));
+        OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, TMP1, 0);
+        }
+      OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_w));
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+      }
+    else if (framesize >= 0)
+      {
+      /* For OP_BRA and OP_BRAMINZERO. */
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_w));
+      }
+    }
+  add_jump(compiler, found, JUMP(SLJIT_JUMP));
+
+  compile_backtrackpath(common, altbacktrack.top);
+  if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+    {
+    common->leavelabel = save_leavelabel;
+    common->acceptlabel = save_acceptlabel;
+    common->leave = save_leave;
+    common->accept = save_accept;
+    return NULL;
+    }
+  set_jumps(altbacktrack.topbacktracks, LABEL());
+
+  if (*cc != OP_ALT)
+    break;
+
+  ccbegin = cc;
+  cc += GET(cc, 1);
+  }
+/* None of them matched. */
+if (common->leave != NULL)
+  set_jumps(common->leave, LABEL());
+
+if (opcode == OP_ASSERT || opcode == OP_ASSERTBACK)
+  {
+  /* Assert is failed. */
+  if (conditional || bra == OP_BRAZERO)
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+
+  if (framesize < 0)
+    {
+    /* The topmost item should be 0. */
+    if (bra == OP_BRAZERO)
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+    else
+      free_stack(common, 1);
+    }
+  else
+    {
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+    /* The topmost item should be 0. */
+    if (bra == OP_BRAZERO)
+      {
+      free_stack(common, framesize + 1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+      }
+    else
+      free_stack(common, framesize + 2);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, TMP1, 0);
+    }
+  jump = JUMP(SLJIT_JUMP);
+  if (bra != OP_BRAZERO)
+    add_jump(compiler, target, jump);
+
+  /* Assert is successful. */
+  set_jumps(tmp, LABEL());
+  if (framesize < 0)
+    {
+    /* We know that STR_PTR was stored on the top of the stack. */
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), 0);
+    /* Keep the STR_PTR on the top of the stack. */
+    if (bra == OP_BRAZERO)
+      OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_w));
+    else if (bra == OP_BRAMINZERO)
+      {
+      OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_w));
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+      }
+    }
+  else
+    {
+    if (bra == OP_BRA)
+      {
+      /* We don't need to keep the STR_PTR, only the previous localptr. */
+      OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_w));
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), 0);
+      }
+    else
+      {
+      /* We don't need to keep the STR_PTR, only the previous localptr. */
+      OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_IMM, (framesize + 2) * sizeof(sljit_w));
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), bra == OP_BRAZERO ? STR_PTR : SLJIT_IMM, 0);
+      }
+    }
+
+  if (bra == OP_BRAZERO)
+    {
+    backtrack->trypath = LABEL();
+    sljit_set_label(jump, backtrack->trypath);
+    }
+  else if (bra == OP_BRAMINZERO)
+    {
+    JUMPTO(SLJIT_JUMP, backtrack->trypath);
+    JUMPHERE(brajump);
+    if (framesize >= 0)
+      {
+      OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_w));
+      }
+    set_jumps(backtrack->common.topbacktracks, LABEL());
+    }
+  }
+else
+  {
+  /* AssertNot is successful. */
+  if (framesize < 0)
+    {
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    if (bra != OP_BRA)
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+    else
+      free_stack(common, 1);
+    }
+  else
+    {
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+    /* The topmost item should be 0. */
+    if (bra != OP_BRA)
+      {
+      free_stack(common, framesize + 1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+      }
+    else
+      free_stack(common, framesize + 2);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, TMP1, 0);
+    }
+
+  if (bra == OP_BRAZERO)
+    backtrack->trypath = LABEL();
+  else if (bra == OP_BRAMINZERO)
+    {
+    JUMPTO(SLJIT_JUMP, backtrack->trypath);
+    JUMPHERE(brajump);
+    }
+
+  if (bra != OP_BRA)
+    {
+    SLJIT_ASSERT(found == &backtrack->common.topbacktracks);
+    set_jumps(backtrack->common.topbacktracks, LABEL());
+    backtrack->common.topbacktracks = NULL;
+    }
+  }
+
+common->leavelabel = save_leavelabel;
+common->acceptlabel = save_acceptlabel;
+common->leave = save_leave;
+common->accept = save_accept;
+return cc + 1 + LINK_SIZE;
+}
+
+static sljit_w SLJIT_CALL do_searchovector(sljit_w refno, sljit_w* locals, pcre_uchar *name_table)
+{
+int condition = FALSE;
+pcre_uchar *slotA = name_table;
+pcre_uchar *slotB;
+sljit_w name_count = locals[LOCALS0 / sizeof(sljit_w)];
+sljit_w name_entry_size = locals[LOCALS1 / sizeof(sljit_w)];
+sljit_w no_capture;
+int i;
+
+locals += refno & 0xff;
+refno >>= 8;
+no_capture = locals[1];
+
+for (i = 0; i < name_count; i++)
+  {
+  if (GET2(slotA, 0) == refno) break;
+  slotA += name_entry_size;
+  }
+
+if (i < name_count)
+  {
+  /* Found a name for the number - there can be only one; duplicate names
+  for different numbers are allowed, but not vice versa. First scan down
+  for duplicates. */
+
+  slotB = slotA;
+  while (slotB > name_table)
+    {
+    slotB -= name_entry_size;
+    if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+      {
+      condition = locals[GET2(slotB, 0) << 1] != no_capture;
+      if (condition) break;
+      }
+    else break;
+    }
+
+  /* Scan up for duplicates */
+  if (!condition)
+    {
+    slotB = slotA;
+    for (i++; i < name_count; i++)
+      {
+      slotB += name_entry_size;
+      if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+        {
+        condition = locals[GET2(slotB, 0) << 1] != no_capture;
+        if (condition) break;
+        }
+      else break;
+      }
+    }
+  }
+return condition;
+}
+
+static sljit_w SLJIT_CALL do_searchgroups(sljit_w recno, sljit_w* locals, pcre_uchar *name_table)
+{
+int condition = FALSE;
+pcre_uchar *slotA = name_table;
+pcre_uchar *slotB;
+sljit_w name_count = locals[LOCALS0 / sizeof(sljit_w)];
+sljit_w name_entry_size = locals[LOCALS1 / sizeof(sljit_w)];
+sljit_w group_num = locals[POSSESSIVE0 / sizeof(sljit_w)];
+int i;
+
+for (i = 0; i < name_count; i++)
+  {
+  if (GET2(slotA, 0) == recno) break;
+  slotA += name_entry_size;
+  }
+
+if (i < name_count)
+  {
+  /* Found a name for the number - there can be only one; duplicate
+  names for different numbers are allowed, but not vice versa. First
+  scan down for duplicates. */
+
+  slotB = slotA;
+  while (slotB > name_table)
+    {
+    slotB -= name_entry_size;
+    if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+      {
+      condition = GET2(slotB, 0) == group_num;
+      if (condition) break;
+      }
+    else break;
+    }
+
+  /* Scan up for duplicates */
+  if (!condition)
+    {
+    slotB = slotA;
+    for (i++; i < name_count; i++)
+      {
+      slotB += name_entry_size;
+      if (STRCMP_UC_UC(slotA + IMM2_SIZE, slotB + IMM2_SIZE) == 0)
+        {
+        condition = GET2(slotB, 0) == group_num;
+        if (condition) break;
+        }
+      else break;
+      }
+    }
+  }
+return condition;
+}
+
+/*
+  Handling bracketed expressions is probably the most complex part.
+
+  Stack layout naming characters:
+    S - Push the current STR_PTR
+    0 - Push a 0 (NULL)
+    A - Push the current STR_PTR. Needed for restoring the STR_PTR
+        before the next alternative. Not pushed if there are no alternatives.
+    M - Any values pushed by the current alternative. Can be empty, or anything.
+    C - Push the previous OVECTOR(i), OVECTOR(i+1) and OVECTOR_PRIV(i) to the stack.
+    L - Push the previous local (pointed by localptr) to the stack
+   () - opional values stored on the stack
+  ()* - optonal, can be stored multiple times
+
+  The following list shows the regular expression templates, their PCRE byte codes
+  and stack layout supported by pcre-sljit.
+
+  (?:)                     OP_BRA     | OP_KET                A M
+  ()                       OP_CBRA    | OP_KET                C M
+  (?:)+                    OP_BRA     | OP_KETRMAX        0   A M S   ( A M S )*
+                           OP_SBRA    | OP_KETRMAX        0   L M S   ( L M S )*
+  (?:)+?                   OP_BRA     | OP_KETRMIN        0   A M S   ( A M S )*
+                           OP_SBRA    | OP_KETRMIN        0   L M S   ( L M S )*
+  ()+                      OP_CBRA    | OP_KETRMAX        0   C M S   ( C M S )*
+                           OP_SCBRA   | OP_KETRMAX        0   C M S   ( C M S )*
+  ()+?                     OP_CBRA    | OP_KETRMIN        0   C M S   ( C M S )*
+                           OP_SCBRA   | OP_KETRMIN        0   C M S   ( C M S )*
+  (?:)?    OP_BRAZERO    | OP_BRA     | OP_KET            S ( A M 0 )
+  (?:)??   OP_BRAMINZERO | OP_BRA     | OP_KET            S ( A M 0 )
+  ()?      OP_BRAZERO    | OP_CBRA    | OP_KET            S ( C M 0 )
+  ()??     OP_BRAMINZERO | OP_CBRA    | OP_KET            S ( C M 0 )
+  (?:)*    OP_BRAZERO    | OP_BRA     | OP_KETRMAX      S 0 ( A M S )*
+           OP_BRAZERO    | OP_SBRA    | OP_KETRMAX      S 0 ( L M S )*
+  (?:)*?   OP_BRAMINZERO | OP_BRA     | OP_KETRMIN      S 0 ( A M S )*
+           OP_BRAMINZERO | OP_SBRA    | OP_KETRMIN      S 0 ( L M S )*
+  ()*      OP_BRAZERO    | OP_CBRA    | OP_KETRMAX      S 0 ( C M S )*
+           OP_BRAZERO    | OP_SCBRA   | OP_KETRMAX      S 0 ( C M S )*
+  ()*?     OP_BRAMINZERO | OP_CBRA    | OP_KETRMIN      S 0 ( C M S )*
+           OP_BRAMINZERO | OP_SCBRA   | OP_KETRMIN      S 0 ( C M S )*
+
+
+  Stack layout naming characters:
+    A - Push the alternative index (starting from 0) on the stack.
+        Not pushed if there is no alternatives.
+    M - Any values pushed by the current alternative. Can be empty, or anything.
+
+  The next list shows the possible content of a bracket:
+  (|)     OP_*BRA    | OP_ALT ...         M A
+  (?()|)  OP_*COND   | OP_ALT             M A
+  (?>|)   OP_ONCE    | OP_ALT ...         [stack trace] M A
+  (?>|)   OP_ONCE_NC | OP_ALT ...         [stack trace] M A
+                                          Or nothing, if trace is unnecessary
+*/
+
+static pcre_uchar *compile_bracket_trypath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar opcode;
+int localptr = 0;
+int offset = 0;
+int stacksize;
+pcre_uchar *ccbegin;
+pcre_uchar *trypath;
+pcre_uchar bra = OP_BRA;
+pcre_uchar ket;
+assert_backtrack *assert;
+BOOL has_alternatives;
+struct sljit_jump *jump;
+struct sljit_jump *skip;
+struct sljit_label *rmaxlabel = NULL;
+struct sljit_jump *braminzerojump = NULL;
+
+PUSH_BACKTRACK(sizeof(bracket_backtrack), cc, NULL);
+
+if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
+  {
+  bra = *cc;
+  cc++;
+  opcode = *cc;
+  }
+
+opcode = *cc;
+ccbegin = cc;
+trypath = ccbegin + 1 + LINK_SIZE;
+
+if ((opcode == OP_COND || opcode == OP_SCOND) && cc[1 + LINK_SIZE] == OP_DEF)
+  {
+  /* Drop this bracket_backtrack. */
+  parent->top = backtrack->prev;
+  return bracketend(cc);
+  }
+
+ket = *(bracketend(cc) - 1 - LINK_SIZE);
+SLJIT_ASSERT(ket == OP_KET || ket == OP_KETRMAX || ket == OP_KETRMIN);
+SLJIT_ASSERT(!((bra == OP_BRAZERO && ket == OP_KETRMIN) || (bra == OP_BRAMINZERO && ket == OP_KETRMAX)));
+cc += GET(cc, 1);
+
+has_alternatives = *cc == OP_ALT;
+if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
+  {
+  has_alternatives = (*trypath == OP_RREF) ? FALSE : TRUE;
+  if (*trypath == OP_NRREF)
+    {
+    stacksize = GET2(trypath, 1);
+    if (common->currententry == NULL || stacksize == RREF_ANY)
+      has_alternatives = FALSE;
+    else if (common->currententry->start == 0)
+      has_alternatives = stacksize != 0;
+    else
+      has_alternatives = stacksize != GET2(common->start, common->currententry->start + 1 + LINK_SIZE);
+    }
+  }
+
+if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN))
+  opcode = OP_SCOND;
+if (SLJIT_UNLIKELY(opcode == OP_ONCE_NC))
+  opcode = OP_ONCE;
+
+if (opcode == OP_CBRA || opcode == OP_SCBRA)
+  {
+  /* Capturing brackets has a pre-allocated space. */
+  offset = GET2(ccbegin, 1 + LINK_SIZE);
+  localptr = OVECTOR_PRIV(offset);
+  offset <<= 1;
+  BACKTRACK_AS(bracket_backtrack)->localptr = localptr;
+  trypath += IMM2_SIZE;
+  }
+else if (opcode == OP_ONCE || opcode == OP_SBRA || opcode == OP_SCOND)
+  {
+  /* Other brackets simply allocate the next entry. */
+  localptr = PRIV_DATA(ccbegin);
+  SLJIT_ASSERT(localptr != 0);
+  BACKTRACK_AS(bracket_backtrack)->localptr = localptr;
+  if (opcode == OP_ONCE)
+    BACKTRACK_AS(bracket_backtrack)->u.framesize = get_framesize(common, ccbegin, FALSE);
+  }
+
+/* Instructions before the first alternative. */
+stacksize = 0;
+if ((ket == OP_KETRMAX) || (ket == OP_KETRMIN && bra != OP_BRAMINZERO))
+  stacksize++;
+if (bra == OP_BRAZERO)
+  stacksize++;
+
+if (stacksize > 0)
+  allocate_stack(common, stacksize);
+
+stacksize = 0;
+if ((ket == OP_KETRMAX) || (ket == OP_KETRMIN && bra != OP_BRAMINZERO))
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
+  stacksize++;
+  }
+
+if (bra == OP_BRAZERO)
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+
+if (bra == OP_BRAMINZERO)
+  {
+  /* This is a backtrack path! (Since the try-path of OP_BRAMINZERO matches to the empty string) */
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  if (ket != OP_KETRMIN)
+    {
+    free_stack(common, 1);
+    braminzerojump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+    }
+  else
+    {
+    if (opcode == OP_ONCE || opcode >= OP_SBRA)
+      {
+      jump = CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+      /* Nothing stored during the first run. */
+      skip = JUMP(SLJIT_JUMP);
+      JUMPHERE(jump);
+      /* Checking zero-length iteration. */
+      if (opcode != OP_ONCE || BACKTRACK_AS(bracket_backtrack)->u.framesize < 0)
+        {
+        /* When we come from outside, localptr contains the previous STR_PTR. */
+        braminzerojump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+        }
+      else
+        {
+        /* Except when the whole stack frame must be saved. */
+        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+        braminzerojump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (BACKTRACK_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_w));
+        }
+      JUMPHERE(skip);
+      }
+    else
+      {
+      jump = CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+      JUMPHERE(jump);
+      }
+    }
+  }
+
+if (ket == OP_KETRMIN)
+  BACKTRACK_AS(bracket_backtrack)->recursivetrypath = LABEL();
+
+if (ket == OP_KETRMAX)
+  {
+  rmaxlabel = LABEL();
+  if (has_alternatives && opcode != OP_ONCE && opcode < OP_SBRA)
+    BACKTRACK_AS(bracket_backtrack)->alttrypath = rmaxlabel;
+  }
+
+/* Handling capturing brackets and alternatives. */
+if (opcode == OP_ONCE)
+  {
+  if (BACKTRACK_AS(bracket_backtrack)->u.framesize < 0)
+    {
+    /* Neither capturing brackets nor recursions are not found in the block. */
+    if (ket == OP_KETRMIN)
+      {
+      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      allocate_stack(common, 2);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
+      OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_w));
+      }
+    else if (ket == OP_KETRMAX || has_alternatives)
+      {
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, STACK_TOP, 0);
+      allocate_stack(common, 1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+      }
+    else
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, STACK_TOP, 0);
+    }
+  else
+    {
+    if (ket == OP_KETRMIN || ket == OP_KETRMAX || has_alternatives)
+      {
+      allocate_stack(common, BACKTRACK_AS(bracket_backtrack)->u.framesize + 2);
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, -STACK(BACKTRACK_AS(bracket_backtrack)->u.framesize + 1));
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, TMP2, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+      init_frame(common, ccbegin, BACKTRACK_AS(bracket_backtrack)->u.framesize + 1, 2, FALSE);
+      }
+    else
+      {
+      allocate_stack(common, BACKTRACK_AS(bracket_backtrack)->u.framesize + 1);
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, -STACK(BACKTRACK_AS(bracket_backtrack)->u.framesize));
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, TMP2, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
+      init_frame(common, ccbegin, BACKTRACK_AS(bracket_backtrack)->u.framesize, 1, FALSE);
+      }
+    }
+  }
+else if (opcode == OP_CBRA || opcode == OP_SCBRA)
+  {
+  /* Saving the previous values. */
+  allocate_stack(common, 3);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP1, 0);
+  }
+else if (opcode == OP_SBRA || opcode == OP_SCOND)
+  {
+  /* Saving the previous value. */
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+  allocate_stack(common, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+  }
+else if (has_alternatives)
+  {
+  /* Pushing the starting string pointer. */
+  allocate_stack(common, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  }
+
+/* Generating code for the first alternative. */
+if (opcode == OP_COND || opcode == OP_SCOND)
+  {
+  if (*trypath == OP_CREF)
+    {
+    SLJIT_ASSERT(has_alternatives);
+    add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed),
+      CMP(SLJIT_C_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(GET2(trypath, 1) << 1), SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1)));
+    trypath += 1 + IMM2_SIZE;
+    }
+  else if (*trypath == OP_NCREF)
+    {
+    SLJIT_ASSERT(has_alternatives);
+    stacksize = GET2(trypath, 1);
+    jump = CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(stacksize << 1), SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(1));
+
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, STACK_TOP, 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, SLJIT_IMM, common->name_count);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, SLJIT_IMM, common->name_entry_size);
+    OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG1, 0, SLJIT_IMM, (stacksize << 8) | (common->ovector_start / sizeof(sljit_w)));
+    GET_LOCAL_BASE(SLJIT_TEMPORARY_REG2, 0, 0);
+    OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, common->name_table);
+    sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_searchovector));
+    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1);
+    add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), CMP(SLJIT_C_EQUAL, SLJIT_TEMPORARY_REG1, 0, SLJIT_IMM, 0));
+
+    JUMPHERE(jump);
+    trypath += 1 + IMM2_SIZE;
+    }
+  else if (*trypath == OP_RREF || *trypath == OP_NRREF)
+    {
+    /* Never has other case. */
+    BACKTRACK_AS(bracket_backtrack)->u.condfailed = NULL;
+
+    stacksize = GET2(trypath, 1);
+    if (common->currententry == NULL)
+      stacksize = 0;
+    else if (stacksize == RREF_ANY)
+      stacksize = 1;
+    else if (common->currententry->start == 0)
+      stacksize = stacksize == 0;
+    else
+      stacksize = stacksize == GET2(common->start, common->currententry->start + 1 + LINK_SIZE);
+
+    if (*trypath == OP_RREF || stacksize || common->currententry == NULL)
+      {
+      SLJIT_ASSERT(!has_alternatives);
+      if (stacksize != 0)
+        trypath += 1 + IMM2_SIZE;
+      else
+        {
+        if (*cc == OP_ALT)
+          {
+          trypath = cc + 1 + LINK_SIZE;
+          cc += GET(cc, 1);
+          }
+        else
+          trypath = cc;
+        }
+      }
+    else
+      {
+      SLJIT_ASSERT(has_alternatives);
+
+      stacksize = GET2(trypath, 1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, STACK_TOP, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0, SLJIT_IMM, common->name_count);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, SLJIT_IMM, common->name_entry_size);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, GET2(common->start, common->currententry->start + 1 + LINK_SIZE));
+      OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG1, 0, SLJIT_IMM, stacksize);
+      GET_LOCAL_BASE(SLJIT_TEMPORARY_REG2, 0, 0);
+      OP1(SLJIT_MOV, SLJIT_TEMPORARY_REG3, 0, SLJIT_IMM, common->name_table);
+      sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_searchgroups));
+      OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1);
+      add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), CMP(SLJIT_C_EQUAL, SLJIT_TEMPORARY_REG1, 0, SLJIT_IMM, 0));
+      trypath += 1 + IMM2_SIZE;
+      }
+    }
+  else
+    {
+    SLJIT_ASSERT(has_alternatives && *trypath >= OP_ASSERT && *trypath <= OP_ASSERTBACK_NOT);
+    /* Similar code as PUSH_BACKTRACK macro. */
+    assert = sljit_alloc_memory(compiler, sizeof(assert_backtrack));
+    if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+      return NULL;
+    memset(assert, 0, sizeof(assert_backtrack));
+    assert->common.cc = trypath;
+    BACKTRACK_AS(bracket_backtrack)->u.assert = assert;
+    trypath = compile_assert_trypath(common, trypath, assert, TRUE);
+    }
+  }
+
+compile_trypath(common, trypath, cc, backtrack);
+if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+  return NULL;
+
+if (opcode == OP_ONCE)
+  {
+  if (BACKTRACK_AS(bracket_backtrack)->u.framesize < 0)
+    {
+    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+    /* TMP2 which is set here used by OP_KETRMAX below. */
+    if (ket == OP_KETRMAX)
+      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), 0);
+    else if (ket == OP_KETRMIN)
+      {
+      /* Move the STR_PTR to the localptr. */
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_MEM1(STACK_TOP), 0);
+      }
+    }
+  else
+    {
+    stacksize = (ket == OP_KETRMIN || ket == OP_KETRMAX || has_alternatives) ? 2 : 1;
+    OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_IMM, (BACKTRACK_AS(bracket_backtrack)->u.framesize + stacksize) * sizeof(sljit_w));
+    if (ket == OP_KETRMAX)
+      {
+      /* TMP2 which is set here used by OP_KETRMAX below. */
+      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+      }
+    }
+  }
+
+stacksize = 0;
+if (ket != OP_KET || bra != OP_BRA)
+  stacksize++;
+if (has_alternatives && opcode != OP_ONCE)
+  stacksize++;
+
+if (stacksize > 0)
+  allocate_stack(common, stacksize);
+
+stacksize = 0;
+if (ket != OP_KET)
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+  stacksize++;
+  }
+else if (bra != OP_BRA)
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
+  stacksize++;
+  }
+
+if (has_alternatives)
+  {
+  if (opcode != OP_ONCE)
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
+  if (ket != OP_KETRMAX)
+    BACKTRACK_AS(bracket_backtrack)->alttrypath = LABEL();
+  }
+
+/* Must be after the trypath label. */
+if (offset != 0)
+  {
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 0), TMP1, 0);
+  }
+
+if (ket == OP_KETRMAX)
+  {
+  if (opcode == OP_ONCE || opcode >= OP_SBRA)
+    {
+    if (has_alternatives)
+      BACKTRACK_AS(bracket_backtrack)->alttrypath = LABEL();
+    /* Checking zero-length iteration. */
+    if (opcode != OP_ONCE)
+      {
+      CMPTO(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, STR_PTR, 0, rmaxlabel);
+      /* Drop STR_PTR for greedy plus quantifier. */
+      if (bra != OP_BRAZERO)
+        free_stack(common, 1);
+      }
+    else
+      /* TMP2 must contain the starting STR_PTR. */
+      CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_PTR, 0, rmaxlabel);
+    }
+  else
+    JUMPTO(SLJIT_JUMP, rmaxlabel);
+  BACKTRACK_AS(bracket_backtrack)->recursivetrypath = LABEL();
+  }
+
+if (bra == OP_BRAZERO)
+  BACKTRACK_AS(bracket_backtrack)->zerotrypath = LABEL();
+
+if (bra == OP_BRAMINZERO)
+  {
+  /* This is a backtrack path! (From the viewpoint of OP_BRAMINZERO) */
+  JUMPTO(SLJIT_JUMP, ((braminzero_backtrack *)parent)->trypath);
+  if (braminzerojump != NULL)
+    {
+    JUMPHERE(braminzerojump);
+    /* We need to release the end pointer to perform the
+    backtrack for the zero-length iteration. When
+    framesize is < 0, OP_ONCE will do the release itself. */
+    if (opcode == OP_ONCE && BACKTRACK_AS(bracket_backtrack)->u.framesize >= 0)
+      {
+      OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+      }
+    else if (ket == OP_KETRMIN && opcode != OP_ONCE)
+      free_stack(common, 1);
+    }
+  /* Continue to the normal backtrack. */
+  }
+
+if ((ket != OP_KET && bra != OP_BRAMINZERO) || bra == OP_BRAZERO)
+  decrease_call_count(common);
+
+/* Skip the other alternatives. */
+while (*cc == OP_ALT)
+  cc += GET(cc, 1);
+cc += 1 + LINK_SIZE;
+return cc;
+}
+
+static pcre_uchar *compile_bracketpos_trypath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar opcode;
+int localptr;
+int cbraprivptr = 0;
+int framesize;
+int stacksize;
+int offset = 0;
+BOOL zero = FALSE;
+pcre_uchar *ccbegin = NULL;
+int stack;
+struct sljit_label *loop = NULL;
+struct jump_list *emptymatch = NULL;
+
+PUSH_BACKTRACK(sizeof(bracketpos_backtrack), cc, NULL);
+if (*cc == OP_BRAPOSZERO)
+  {
+  zero = TRUE;
+  cc++;
+  }
+
+opcode = *cc;
+localptr = PRIV_DATA(cc);
+SLJIT_ASSERT(localptr != 0);
+BACKTRACK_AS(bracketpos_backtrack)->localptr = localptr;
+switch(opcode)
+  {
+  case OP_BRAPOS:
+  case OP_SBRAPOS:
+  ccbegin = cc + 1 + LINK_SIZE;
+  break;
+
+  case OP_CBRAPOS:
+  case OP_SCBRAPOS:
+  offset = GET2(cc, 1 + LINK_SIZE);
+  cbraprivptr = OVECTOR_PRIV(offset);
+  offset <<= 1;
+  ccbegin = cc + 1 + LINK_SIZE + IMM2_SIZE;
+  break;
+
+  default:
+  SLJIT_ASSERT_STOP();
+  break;
+  }
+
+framesize = get_framesize(common, cc, FALSE);
+BACKTRACK_AS(bracketpos_backtrack)->framesize = framesize;
+if (framesize < 0)
+  {
+  stacksize = (opcode == OP_CBRAPOS || opcode == OP_SCBRAPOS) ? 2 : 1;
+  if (!zero)
+    stacksize++;
+  BACKTRACK_AS(bracketpos_backtrack)->stacksize = stacksize;
+  allocate_stack(common, stacksize);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, STACK_TOP, 0);
+
+  if (opcode == OP_CBRAPOS || opcode == OP_SCBRAPOS)
+    {
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset));
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1));
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
+    }
+  else
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+
+  if (!zero)
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 1);
+  }
+else
+  {
+  stacksize = framesize + 1;
+  if (!zero)
+    stacksize++;
+  if (opcode == OP_BRAPOS || opcode == OP_SBRAPOS)
+    stacksize++;
+  BACKTRACK_AS(bracketpos_backtrack)->stacksize = stacksize;
+  allocate_stack(common, stacksize);
+
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+  OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, -STACK(stacksize - 1));
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, TMP2, 0);
+  stack = 0;
+  if (!zero)
+    {
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 1);
+    stack++;
+    }
+  if (opcode == OP_BRAPOS || opcode == OP_SBRAPOS)
+    {
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), STR_PTR, 0);
+    stack++;
+    }
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP1, 0);
+  init_frame(common, cc, stacksize - 1, stacksize - framesize, FALSE);
+  }
+
+if (opcode == OP_CBRAPOS || opcode == OP_SCBRAPOS)
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr, STR_PTR, 0);
+
+loop = LABEL();
+while (*cc != OP_KETRPOS)
+  {
+  backtrack->top = NULL;
+  backtrack->topbacktracks = NULL;
+  cc += GET(cc, 1);
+
+  compile_trypath(common, ccbegin, cc, backtrack);
+  if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+    return NULL;
+
+  if (framesize < 0)
+    {
+    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+
+    if (opcode == OP_CBRAPOS || opcode == OP_SCBRAPOS)
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr, STR_PTR, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+      }
+    else
+      {
+      if (opcode == OP_SBRAPOS)
+        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+      }
+
+    if (opcode == OP_SBRAPOS || opcode == OP_SCBRAPOS)
+      add_jump(compiler, &emptymatch, CMP(SLJIT_C_EQUAL, TMP1, 0, STR_PTR, 0));
+
+    if (!zero)
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0);
+    }
+  else
+    {
+    if (opcode == OP_CBRAPOS || opcode == OP_SCBRAPOS)
+      {
+      OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_IMM, stacksize * sizeof(sljit_w));
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr, STR_PTR, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+      }
+    else
+      {
+      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      OP2(SLJIT_ADD, STACK_TOP, 0, TMP2, 0, SLJIT_IMM, stacksize * sizeof(sljit_w));
+      if (opcode == OP_SBRAPOS)
+        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_w));
+      OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_w), STR_PTR, 0);
+      }
+
+    if (opcode == OP_SBRAPOS || opcode == OP_SCBRAPOS)
+      add_jump(compiler, &emptymatch, CMP(SLJIT_C_EQUAL, TMP1, 0, STR_PTR, 0));
+
+    if (!zero)
+      {
+      if (framesize < 0)
+        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0);
+      else
+        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+      }
+    }
+  JUMPTO(SLJIT_JUMP, loop);
+  flush_stubs(common);
+
+  compile_backtrackpath(common, backtrack->top);
+  if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+    return NULL;
+  set_jumps(backtrack->topbacktracks, LABEL());
+
+  if (framesize < 0)
+    {
+    if (opcode == OP_CBRAPOS || opcode == OP_SCBRAPOS)
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr);
+    else
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    }
+  else
+    {
+    if (opcode == OP_CBRAPOS || opcode == OP_SCBRAPOS)
+      {
+      /* Last alternative. */
+      if (*cc == OP_KETRPOS)
+        OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), cbraprivptr);
+      }
+    else
+      {
+      OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_w));
+      }
+    }
+
+  if (*cc == OP_KETRPOS)
+    break;
+  ccbegin = cc + 1 + LINK_SIZE;
+  }
+
+backtrack->topbacktracks = NULL;
+if (!zero)
+  {
+  if (framesize < 0)
+    add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0));
+  else /* TMP2 is set to [localptr] above. */
+    add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(TMP2), (stacksize - 1) * sizeof(sljit_w), SLJIT_IMM, 0));
+  }
+
+/* None of them matched. */
+set_jumps(emptymatch, LABEL());
+decrease_call_count(common);
+return cc + 1 + LINK_SIZE;
+}
+
+static SLJIT_INLINE pcre_uchar *get_iterator_parameters(compiler_common *common, pcre_uchar *cc, pcre_uchar *opcode, pcre_uchar *type, int *arg1, int *arg2, pcre_uchar **end)
+{
+int class_len;
+
+*opcode = *cc;
+if (*opcode >= OP_STAR && *opcode <= OP_POSUPTO)
+  {
+  cc++;
+  *type = OP_CHAR;
+  }
+else if (*opcode >= OP_STARI && *opcode <= OP_POSUPTOI)
+  {
+  cc++;
+  *type = OP_CHARI;
+  *opcode -= OP_STARI - OP_STAR;
+  }
+else if (*opcode >= OP_NOTSTAR && *opcode <= OP_NOTPOSUPTO)
+  {
+  cc++;
+  *type = OP_NOT;
+  *opcode -= OP_NOTSTAR - OP_STAR;
+  }
+else if (*opcode >= OP_NOTSTARI && *opcode <= OP_NOTPOSUPTOI)
+  {
+  cc++;
+  *type = OP_NOTI;
+  *opcode -= OP_NOTSTARI - OP_STAR;
+  }
+else if (*opcode >= OP_TYPESTAR && *opcode <= OP_TYPEPOSUPTO)
+  {
+  cc++;
+  *opcode -= OP_TYPESTAR - OP_STAR;
+  *type = 0;
+  }
+else
+  {
+  SLJIT_ASSERT(*opcode >= OP_CLASS || *opcode <= OP_XCLASS);
+  *type = *opcode;
+  cc++;
+  class_len = (*type < OP_XCLASS) ? (int)(1 + (32 / sizeof(pcre_uchar))) : GET(cc, 0);
+  *opcode = cc[class_len - 1];
+  if (*opcode >= OP_CRSTAR && *opcode <= OP_CRMINQUERY)
+    {
+    *opcode -= OP_CRSTAR - OP_STAR;
+    if (end != NULL)
+      *end = cc + class_len;
+    }
+  else
+    {
+    SLJIT_ASSERT(*opcode == OP_CRRANGE || *opcode == OP_CRMINRANGE);
+    *arg1 = GET2(cc, (class_len + IMM2_SIZE));
+    *arg2 = GET2(cc, class_len);
+
+    if (*arg2 == 0)
+      {
+      SLJIT_ASSERT(*arg1 != 0);
+      *opcode = (*opcode == OP_CRRANGE) ? OP_UPTO : OP_MINUPTO;
+      }
+    if (*arg1 == *arg2)
+      *opcode = OP_EXACT;
+
+    if (end != NULL)
+      *end = cc + class_len + 2 * IMM2_SIZE;
+    }
+  return cc;
+  }
+
+if (*opcode == OP_UPTO || *opcode == OP_MINUPTO || *opcode == OP_EXACT || *opcode == OP_POSUPTO)
+  {
+  *arg1 = GET2(cc, 0);
+  cc += IMM2_SIZE;
+  }
+
+if (*type == 0)
+  {
+  *type = *cc;
+  if (end != NULL)
+    *end = next_opcode(common, cc);
+  cc++;
+  return cc;
+  }
+
+if (end != NULL)
+  {
+  *end = cc + 1;
+#ifdef SUPPORT_UTF
+  if (common->utf && HAS_EXTRALEN(*cc)) *end += GET_EXTRALEN(*cc);
+#endif
+  }
+return cc;
+}
+
+static pcre_uchar *compile_iterator_trypath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+pcre_uchar opcode;
+pcre_uchar type;
+int arg1 = -1, arg2 = -1;
+pcre_uchar* end;
+jump_list *nomatch = NULL;
+struct sljit_jump *jump = NULL;
+struct sljit_label *label;
+
+PUSH_BACKTRACK(sizeof(iterator_backtrack), cc, NULL);
+
+cc = get_iterator_parameters(common, cc, &opcode, &type, &arg1, &arg2, &end);
+
+switch(opcode)
+  {
+  case OP_STAR:
+  case OP_PLUS:
+  case OP_UPTO:
+  case OP_CRRANGE:
+  if (type == OP_ANYNL || type == OP_EXTUNI)
+    {
+    if (opcode == OP_STAR || opcode == OP_UPTO)
+      {
+      allocate_stack(common, 2);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
+      }
+    else
+      {
+      allocate_stack(common, 1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+      }
+    if (opcode == OP_UPTO || opcode == OP_CRRANGE)
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, 0);
+
+    label = LABEL();
+    compile_char1_trypath(common, type, cc, &backtrack->topbacktracks);
+    if (opcode == OP_UPTO || opcode == OP_CRRANGE)
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+      OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+      if (opcode == OP_CRRANGE && arg2 > 0)
+        CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg2, label);
+      if (opcode == OP_UPTO || (opcode == OP_CRRANGE && arg1 > 0))
+        jump = CMP(SLJIT_C_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, arg1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, TMP1, 0);
+      }
+
+    allocate_stack(common, 1);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+    JUMPTO(SLJIT_JUMP, label);
+    if (jump != NULL)
+      JUMPHERE(jump);
+    }
+  else
+    {
+    if (opcode == OP_PLUS)
+      compile_char1_trypath(common, type, cc, &backtrack->topbacktracks);
+    allocate_stack(common, 2);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 1);
+    label = LABEL();
+    compile_char1_trypath(common, type, cc, &nomatch);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+    if (opcode <= OP_PLUS || (opcode == OP_CRRANGE && arg1 == 0))
+      {
+      OP2(SLJIT_ADD, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 1);
+      JUMPTO(SLJIT_JUMP, label);
+      }
+    else
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+      OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+      CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg1 + 1, label);
+      }
+    set_jumps(nomatch, LABEL());
+    if (opcode == OP_CRRANGE)
+      add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_LESS, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, arg2 + 1));
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    }
+  BACKTRACK_AS(iterator_backtrack)->trypath = LABEL();
+  break;
+
+  case OP_MINSTAR:
+  case OP_MINPLUS:
+  if (opcode == OP_MINPLUS)
+    compile_char1_trypath(common, type, cc, &backtrack->topbacktracks);
+  allocate_stack(common, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  BACKTRACK_AS(iterator_backtrack)->trypath = LABEL();
+  break;
+
+  case OP_MINUPTO:
+  case OP_CRMINRANGE:
+  allocate_stack(common, 2);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 1);
+  if (opcode == OP_CRMINRANGE)
+    add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP));
+  BACKTRACK_AS(iterator_backtrack)->trypath = LABEL();
+  break;
+
+  case OP_QUERY:
+  case OP_MINQUERY:
+  allocate_stack(common, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  if (opcode == OP_QUERY)
+    compile_char1_trypath(common, type, cc, &backtrack->topbacktracks);
+  BACKTRACK_AS(iterator_backtrack)->trypath = LABEL();
+  break;
+
+  case OP_EXACT:
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, 1);
+  label = LABEL();
+  compile_char1_trypath(common, type, cc, &backtrack->topbacktracks);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+  OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, TMP1, 0);
+  CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg1 + 1, label);
+  break;
+
+  case OP_POSSTAR:
+  case OP_POSPLUS:
+  case OP_POSUPTO:
+  if (opcode != OP_POSSTAR)
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, STR_PTR, 0);
+  label = LABEL();
+  compile_char1_trypath(common, type, cc, &nomatch);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, STR_PTR, 0);
+  if (opcode != OP_POSUPTO)
+    {
+    if (opcode == OP_POSPLUS)
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, 2);
+    JUMPTO(SLJIT_JUMP, label);
+    }
+  else
+    {
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0);
+    OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, TMP1, 0);
+    CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg1 + 1, label);
+    }
+  set_jumps(nomatch, LABEL());
+  if (opcode == OP_POSPLUS)
+    add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_LESS, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE0, SLJIT_IMM, 2));
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1);
+  break;
+
+  case OP_POSQUERY:
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, STR_PTR, 0);
+  compile_char1_trypath(common, type, cc, &nomatch);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1, STR_PTR, 0);
+  set_jumps(nomatch, LABEL());
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), POSSESSIVE1);
+  break;
+
+  default:
+  SLJIT_ASSERT_STOP();
+  break;
+  }
+
+decrease_call_count(common);
+return end;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_fail_accept_trypath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+
+PUSH_BACKTRACK(sizeof(bracket_backtrack), cc, NULL);
+
+if (*cc == OP_FAIL)
+  {
+  add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP));
+  return cc + 1;
+  }
+
+if (*cc == OP_ASSERT_ACCEPT || common->currententry != NULL)
+  {
+  /* No need to check notempty conditions. */
+  if (common->acceptlabel == NULL)
+    add_jump(compiler, &common->accept, JUMP(SLJIT_JUMP));
+  else
+    JUMPTO(SLJIT_JUMP, common->acceptlabel);
+  return cc + 1;
+  }
+
+if (common->acceptlabel == NULL)
+  add_jump(compiler, &common->accept, CMP(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0)));
+else
+  CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), common->acceptlabel);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, notempty));
+add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, notempty_atstart));
+if (common->acceptlabel == NULL)
+  add_jump(compiler, &common->accept, CMP(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, 0));
+else
+  CMPTO(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, 0, common->acceptlabel);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+if (common->acceptlabel == NULL)
+  add_jump(compiler, &common->accept, CMP(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_PTR, 0));
+else
+  CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_PTR, 0, common->acceptlabel);
+add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP));
+return cc + 1;
+}
+
+static SLJIT_INLINE pcre_uchar *compile_close_trypath(compiler_common *common, pcre_uchar *cc)
+{
+DEFINE_COMPILER;
+int offset = GET2(cc, 1);
+
+/* Data will be discarded anyway... */
+if (common->currententry != NULL)
+  return cc + 1 + IMM2_SIZE;
+
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR_PRIV(offset));
+offset <<= 1;
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+return cc + 1 + IMM2_SIZE;
+}
+
+static void compile_trypath(compiler_common *common, pcre_uchar *cc, pcre_uchar *ccend, backtrack_common *parent)
+{
+DEFINE_COMPILER;
+backtrack_common *backtrack;
+
+while (cc < ccend)
+  {
+  switch(*cc)
+    {
+    case OP_SOD:
+    case OP_SOM:
+    case OP_NOT_WORD_BOUNDARY:
+    case OP_WORD_BOUNDARY:
+    case OP_NOT_DIGIT:
+    case OP_DIGIT:
+    case OP_NOT_WHITESPACE:
+    case OP_WHITESPACE:
+    case OP_NOT_WORDCHAR:
+    case OP_WORDCHAR:
+    case OP_ANY:
+    case OP_ALLANY:
+    case OP_ANYBYTE:
+    case OP_NOTPROP:
+    case OP_PROP:
+    case OP_ANYNL:
+    case OP_NOT_HSPACE:
+    case OP_HSPACE:
+    case OP_NOT_VSPACE:
+    case OP_VSPACE:
+    case OP_EXTUNI:
+    case OP_EODN:
+    case OP_EOD:
+    case OP_CIRC:
+    case OP_CIRCM:
+    case OP_DOLL:
+    case OP_DOLLM:
+    case OP_NOT:
+    case OP_NOTI:
+    case OP_REVERSE:
+    cc = compile_char1_trypath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+    break;
+
+    case OP_SET_SOM:
+    PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc);
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+    allocate_stack(common, 1);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), STR_PTR, 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+    cc++;
+    break;
+
+    case OP_CHAR:
+    case OP_CHARI:
+    if (common->mode == JIT_COMPILE)
+      cc = compile_charn_trypath(common, cc, ccend, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+    else
+      cc = compile_char1_trypath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+    break;
+
+    case OP_STAR:
+    case OP_MINSTAR:
+    case OP_PLUS:
+    case OP_MINPLUS:
+    case OP_QUERY:
+    case OP_MINQUERY:
+    case OP_UPTO:
+    case OP_MINUPTO:
+    case OP_EXACT:
+    case OP_POSSTAR:
+    case OP_POSPLUS:
+    case OP_POSQUERY:
+    case OP_POSUPTO:
+    case OP_STARI:
+    case OP_MINSTARI:
+    case OP_PLUSI:
+    case OP_MINPLUSI:
+    case OP_QUERYI:
+    case OP_MINQUERYI:
+    case OP_UPTOI:
+    case OP_MINUPTOI:
+    case OP_EXACTI:
+    case OP_POSSTARI:
+    case OP_POSPLUSI:
+    case OP_POSQUERYI:
+    case OP_POSUPTOI:
+    case OP_NOTSTAR:
+    case OP_NOTMINSTAR:
+    case OP_NOTPLUS:
+    case OP_NOTMINPLUS:
+    case OP_NOTQUERY:
+    case OP_NOTMINQUERY:
+    case OP_NOTUPTO:
+    case OP_NOTMINUPTO:
+    case OP_NOTEXACT:
+    case OP_NOTPOSSTAR:
+    case OP_NOTPOSPLUS:
+    case OP_NOTPOSQUERY:
+    case OP_NOTPOSUPTO:
+    case OP_NOTSTARI:
+    case OP_NOTMINSTARI:
+    case OP_NOTPLUSI:
+    case OP_NOTMINPLUSI:
+    case OP_NOTQUERYI:
+    case OP_NOTMINQUERYI:
+    case OP_NOTUPTOI:
+    case OP_NOTMINUPTOI:
+    case OP_NOTEXACTI:
+    case OP_NOTPOSSTARI:
+    case OP_NOTPOSPLUSI:
+    case OP_NOTPOSQUERYI:
+    case OP_NOTPOSUPTOI:
+    case OP_TYPESTAR:
+    case OP_TYPEMINSTAR:
+    case OP_TYPEPLUS:
+    case OP_TYPEMINPLUS:
+    case OP_TYPEQUERY:
+    case OP_TYPEMINQUERY:
+    case OP_TYPEUPTO:
+    case OP_TYPEMINUPTO:
+    case OP_TYPEEXACT:
+    case OP_TYPEPOSSTAR:
+    case OP_TYPEPOSPLUS:
+    case OP_TYPEPOSQUERY:
+    case OP_TYPEPOSUPTO:
+    cc = compile_iterator_trypath(common, cc, parent);
+    break;
+
+    case OP_CLASS:
+    case OP_NCLASS:
+    if (cc[1 + (32 / sizeof(pcre_uchar))] >= OP_CRSTAR && cc[1 + (32 / sizeof(pcre_uchar))] <= OP_CRMINRANGE)
+      cc = compile_iterator_trypath(common, cc, parent);
+    else
+      cc = compile_char1_trypath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+    break;
+
+#if defined SUPPORT_UTF || defined COMPILE_PCRE16
+    case OP_XCLASS:
+    if (*(cc + GET(cc, 1)) >= OP_CRSTAR && *(cc + GET(cc, 1)) <= OP_CRMINRANGE)
+      cc = compile_iterator_trypath(common, cc, parent);
+    else
+      cc = compile_char1_trypath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
+    break;
+#endif
+
+    case OP_REF:
+    case OP_REFI:
+    if (cc[1 + IMM2_SIZE] >= OP_CRSTAR && cc[1 + IMM2_SIZE] <= OP_CRMINRANGE)
+      cc = compile_ref_iterator_trypath(common, cc, parent);
+    else
+      cc = compile_ref_trypath(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE, FALSE);
+    break;
+
+    case OP_RECURSE:
+    cc = compile_recurse_trypath(common, cc, parent);
+    break;
+
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    PUSH_BACKTRACK_NOVALUE(sizeof(assert_backtrack), cc);
+    cc = compile_assert_trypath(common, cc, BACKTRACK_AS(assert_backtrack), FALSE);
+    break;
+
+    case OP_BRAMINZERO:
+    PUSH_BACKTRACK_NOVALUE(sizeof(braminzero_backtrack), cc);
+    cc = bracketend(cc + 1);
+    if (*(cc - 1 - LINK_SIZE) != OP_KETRMIN)
+      {
+      allocate_stack(common, 1);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+      }
+    else
+      {
+      allocate_stack(common, 2);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), STR_PTR, 0);
+      }
+    BACKTRACK_AS(braminzero_backtrack)->trypath = LABEL();
+    if (cc[1] > OP_ASSERTBACK_NOT)
+      decrease_call_count(common);
+    break;
+
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    case OP_BRA:
+    case OP_CBRA:
+    case OP_COND:
+    case OP_SBRA:
+    case OP_SCBRA:
+    case OP_SCOND:
+    cc = compile_bracket_trypath(common, cc, parent);
+    break;
+
+    case OP_BRAZERO:
+    if (cc[1] > OP_ASSERTBACK_NOT)
+      cc = compile_bracket_trypath(common, cc, parent);
+    else
+      {
+      PUSH_BACKTRACK_NOVALUE(sizeof(assert_backtrack), cc);
+      cc = compile_assert_trypath(common, cc, BACKTRACK_AS(assert_backtrack), FALSE);
+      }
+    break;
+
+    case OP_BRAPOS:
+    case OP_CBRAPOS:
+    case OP_SBRAPOS:
+    case OP_SCBRAPOS:
+    case OP_BRAPOSZERO:
+    cc = compile_bracketpos_trypath(common, cc, parent);
+    break;
+
+    case OP_MARK:
+    PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc);
+    SLJIT_ASSERT(common->mark_ptr != 0);
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr);
+    allocate_stack(common, 1);
+    OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_w)(cc + 2));
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, TMP2, 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr), TMP2, 0);
+    cc += 1 + 2 + cc[1];
+    break;
+
+    case OP_COMMIT:
+    PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc);
+    cc += 1;
+    break;
+
+    case OP_FAIL:
+    case OP_ACCEPT:
+    case OP_ASSERT_ACCEPT:
+    cc = compile_fail_accept_trypath(common, cc, parent);
+    break;
+
+    case OP_CLOSE:
+    cc = compile_close_trypath(common, cc);
+    break;
+
+    case OP_SKIPZERO:
+    cc = bracketend(cc + 1);
+    break;
+
+    default:
+    SLJIT_ASSERT_STOP();
+    return;
+    }
+  if (cc == NULL)
+    return;
+  }
+SLJIT_ASSERT(cc == ccend);
+}
+
+#undef PUSH_BACKTRACK
+#undef PUSH_BACKTRACK_NOVALUE
+#undef BACKTRACK_AS
+
+#define COMPILE_BACKTRACKPATH(current) \
+  do \
+    { \
+    compile_backtrackpath(common, (current)); \
+    if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
+      return; \
+    } \
+  while (0)
+
+#define CURRENT_AS(type) ((type *)current)
+
+static void compile_iterator_backtrackpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+pcre_uchar *cc = current->cc;
+pcre_uchar opcode;
+pcre_uchar type;
+int arg1 = -1, arg2 = -1;
+struct sljit_label *label = NULL;
+struct sljit_jump *jump = NULL;
+jump_list *jumplist = NULL;
+
+cc = get_iterator_parameters(common, cc, &opcode, &type, &arg1, &arg2, NULL);
+
+switch(opcode)
+  {
+  case OP_STAR:
+  case OP_PLUS:
+  case OP_UPTO:
+  case OP_CRRANGE:
+  if (type == OP_ANYNL || type == OP_EXTUNI)
+    {
+    set_jumps(current->topbacktracks, LABEL());
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    free_stack(common, 1);
+    CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->trypath);
+    }
+  else
+    {
+    if (opcode <= OP_PLUS || opcode == OP_UPTO)
+      arg2 = 0;
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+    jump = CMP(SLJIT_C_LESS_EQUAL, TMP1, 0, SLJIT_IMM, arg2 + 1);
+    OP2(SLJIT_SUB, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0, SLJIT_IMM, 1);
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    skip_char_back(common);
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+    JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->trypath);
+    if (opcode == OP_CRRANGE)
+      set_jumps(current->topbacktracks, LABEL());
+    JUMPHERE(jump);
+    free_stack(common, 2);
+    if (opcode == OP_PLUS)
+      set_jumps(current->topbacktracks, LABEL());
+    }
+  break;
+
+  case OP_MINSTAR:
+  case OP_MINPLUS:
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  compile_char1_trypath(common, type, cc, &jumplist);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->trypath);
+  set_jumps(jumplist, LABEL());
+  free_stack(common, 1);
+  if (opcode == OP_MINPLUS)
+    set_jumps(current->topbacktracks, LABEL());
+  break;
+
+  case OP_MINUPTO:
+  case OP_CRMINRANGE:
+  if (opcode == OP_CRMINRANGE)
+    {
+    label = LABEL();
+    set_jumps(current->topbacktracks, label);
+    }
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  compile_char1_trypath(common, type, cc, &jumplist);
+
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+  OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
+
+  if (opcode == OP_CRMINRANGE)
+    CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg2 + 1, label);
+
+  if (opcode == OP_CRMINRANGE && arg1 == 0)
+    JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->trypath);
+  else
+    CMPTO(SLJIT_C_LESS, TMP1, 0, SLJIT_IMM, arg1 + 2, CURRENT_AS(iterator_backtrack)->trypath);
+
+  set_jumps(jumplist, LABEL());
+  free_stack(common, 2);
+  break;
+
+  case OP_QUERY:
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+  CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->trypath);
+  jump = JUMP(SLJIT_JUMP);
+  set_jumps(current->topbacktracks, LABEL());
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+  JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->trypath);
+  JUMPHERE(jump);
+  free_stack(common, 1);
+  break;
+
+  case OP_MINQUERY:
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+  jump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+  compile_char1_trypath(common, type, cc, &jumplist);
+  JUMPTO(SLJIT_JUMP, CURRENT_AS(iterator_backtrack)->trypath);
+  set_jumps(jumplist, LABEL());
+  JUMPHERE(jump);
+  free_stack(common, 1);
+  break;
+
+  case OP_EXACT:
+  case OP_POSPLUS:
+  set_jumps(current->topbacktracks, LABEL());
+  break;
+
+  case OP_POSSTAR:
+  case OP_POSQUERY:
+  case OP_POSUPTO:
+  break;
+
+  default:
+  SLJIT_ASSERT_STOP();
+  break;
+  }
+}
+
+static void compile_ref_iterator_backtrackpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+pcre_uchar *cc = current->cc;
+pcre_uchar type;
+
+type = cc[1 + IMM2_SIZE];
+if ((type & 0x1) == 0)
+  {
+  set_jumps(current->topbacktracks, LABEL());
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  free_stack(common, 1);
+  CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->trypath);
+  return;
+  }
+
+OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(iterator_backtrack)->trypath);
+set_jumps(current->topbacktracks, LABEL());
+free_stack(common, 2);
+}
+
+static void compile_recurse_backtrackpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+
+set_jumps(current->topbacktracks, LABEL());
+
+if (common->has_set_som && common->mark_ptr != 0)
+  {
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+  free_stack(common, 2);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), TMP2, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, TMP1, 0);
+  }
+else if (common->has_set_som || common->mark_ptr != 0)
+  {
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  free_stack(common, 1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->has_set_som ? (int)(OVECTOR(0)) : common->mark_ptr, TMP2, 0);
+  }
+}
+
+static void compile_assert_backtrackpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+pcre_uchar *cc = current->cc;
+pcre_uchar bra = OP_BRA;
+struct sljit_jump *brajump = NULL;
+
+SLJIT_ASSERT(*cc != OP_BRAMINZERO);
+if (*cc == OP_BRAZERO)
+  {
+  bra = *cc;
+  cc++;
+  }
+
+if (bra == OP_BRAZERO)
+  {
+  SLJIT_ASSERT(current->topbacktracks == NULL);
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  }
+
+if (CURRENT_AS(assert_backtrack)->framesize < 0)
+  {
+  set_jumps(current->topbacktracks, LABEL());
+
+  if (bra == OP_BRAZERO)
+    {
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+    CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(assert_backtrack)->trypath);
+    free_stack(common, 1);
+    }
+  return;
+  }
+
+if (bra == OP_BRAZERO)
+  {
+  if (*cc == OP_ASSERT_NOT || *cc == OP_ASSERTBACK_NOT)
+    {
+    OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+    CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(assert_backtrack)->trypath);
+    free_stack(common, 1);
+    return;
+    }
+  free_stack(common, 1);
+  brajump = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
+  }
+
+if (*cc == OP_ASSERT || *cc == OP_ASSERTBACK)
+  {
+  OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), CURRENT_AS(assert_backtrack)->localptr);
+  add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), CURRENT_AS(assert_backtrack)->localptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(assert_backtrack)->framesize * sizeof(sljit_w));
+
+  set_jumps(current->topbacktracks, LABEL());
+  }
+else
+  set_jumps(current->topbacktracks, LABEL());
+
+if (bra == OP_BRAZERO)
+  {
+  /* We know there is enough place on the stack. */
+  OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_w));
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
+  JUMPTO(SLJIT_JUMP, CURRENT_AS(assert_backtrack)->trypath);
+  JUMPHERE(brajump);
+  }
+}
+
+static void compile_bracket_backtrackpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+int opcode;
+int offset = 0;
+int localptr = CURRENT_AS(bracket_backtrack)->localptr;
+int stacksize;
+int count;
+pcre_uchar *cc = current->cc;
+pcre_uchar *ccbegin;
+pcre_uchar *ccprev;
+jump_list *jumplist = NULL;
+jump_list *jumplistitem = NULL;
+pcre_uchar bra = OP_BRA;
+pcre_uchar ket;
+assert_backtrack *assert;
+BOOL has_alternatives;
+struct sljit_jump *brazero = NULL;
+struct sljit_jump *once = NULL;
+struct sljit_jump *cond = NULL;
+struct sljit_label *rminlabel = NULL;
+
+if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
+  {
+  bra = *cc;
+  cc++;
+  }
+
+opcode = *cc;
+ccbegin = cc;
+ket = *(bracketend(ccbegin) - 1 - LINK_SIZE);
+cc += GET(cc, 1);
+has_alternatives = *cc == OP_ALT;
+if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
+  has_alternatives = (ccbegin[1 + LINK_SIZE] >= OP_ASSERT && ccbegin[1 + LINK_SIZE] <= OP_ASSERTBACK_NOT) || CURRENT_AS(bracket_backtrack)->u.condfailed != NULL;
+if (opcode == OP_CBRA || opcode == OP_SCBRA)
+  offset = (GET2(ccbegin, 1 + LINK_SIZE)) << 1;
+if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN))
+  opcode = OP_SCOND;
+if (SLJIT_UNLIKELY(opcode == OP_ONCE_NC))
+  opcode = OP_ONCE;
+
+if (ket == OP_KETRMAX)
+  {
+  if (bra == OP_BRAZERO)
+    {
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    free_stack(common, 1);
+    brazero = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 0);
+    }
+  }
+else if (ket == OP_KETRMIN)
+  {
+  if (bra != OP_BRAMINZERO)
+    {
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    if (opcode >= OP_SBRA || opcode == OP_ONCE)
+      {
+      /* Checking zero-length iteration. */
+      if (opcode != OP_ONCE || CURRENT_AS(bracket_backtrack)->u.framesize < 0)
+        CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, CURRENT_AS(bracket_backtrack)->recursivetrypath);
+      else
+        {
+        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+        CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (CURRENT_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_w), CURRENT_AS(bracket_backtrack)->recursivetrypath);
+        }
+      if (opcode != OP_ONCE)
+        free_stack(common, 1);
+      }
+    else
+      JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->recursivetrypath);
+    }
+  rminlabel = LABEL();
+  }
+else if (bra == OP_BRAZERO)
+  {
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  free_stack(common, 1);
+  brazero = CMP(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0);
+  }
+
+if (SLJIT_UNLIKELY(opcode == OP_ONCE))
+  {
+  if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
+    {
+    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+    add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+    }
+  once = JUMP(SLJIT_JUMP);
+  }
+else if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
+  {
+  if (has_alternatives)
+    {
+    /* Always exactly one alternative. */
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    free_stack(common, 1);
+
+    jumplistitem = sljit_alloc_memory(compiler, sizeof(jump_list));
+    if (SLJIT_UNLIKELY(!jumplistitem))
+      return;
+    jumplist = jumplistitem;
+    jumplistitem->next = NULL;
+    jumplistitem->jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, 1);
+    }
+  }
+else if (*cc == OP_ALT)
+  {
+  /* Build a jump list. Get the last successfully matched branch index. */
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  free_stack(common, 1);
+  count = 1;
+  do
+    {
+    /* Append as the last item. */
+    if (jumplist != NULL)
+      {
+      jumplistitem->next = sljit_alloc_memory(compiler, sizeof(jump_list));
+      jumplistitem = jumplistitem->next;
+      }
+    else
+      {
+      jumplistitem = sljit_alloc_memory(compiler, sizeof(jump_list));
+      jumplist = jumplistitem;
+      }
+
+    if (SLJIT_UNLIKELY(!jumplistitem))
+      return;
+
+    jumplistitem->next = NULL;
+    jumplistitem->jump = CMP(SLJIT_C_EQUAL, TMP1, 0, SLJIT_IMM, count++);
+    cc += GET(cc, 1);
+    }
+  while (*cc == OP_ALT);
+
+  cc = ccbegin + GET(ccbegin, 1);
+  }
+
+COMPILE_BACKTRACKPATH(current->top);
+if (current->topbacktracks)
+  set_jumps(current->topbacktracks, LABEL());
+
+if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
+  {
+  /* Conditional block always has at most one alternative. */
+  if (ccbegin[1 + LINK_SIZE] >= OP_ASSERT && ccbegin[1 + LINK_SIZE] <= OP_ASSERTBACK_NOT)
+    {
+    SLJIT_ASSERT(has_alternatives);
+    assert = CURRENT_AS(bracket_backtrack)->u.assert;
+    if (assert->framesize >= 0 && (ccbegin[1 + LINK_SIZE] == OP_ASSERT || ccbegin[1 + LINK_SIZE] == OP_ASSERTBACK))
+      {
+      OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), assert->localptr);
+      add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), assert->localptr, SLJIT_MEM1(STACK_TOP), assert->framesize * sizeof(sljit_w));
+      }
+    cond = JUMP(SLJIT_JUMP);
+    set_jumps(CURRENT_AS(bracket_backtrack)->u.assert->condfailed, LABEL());
+    }
+  else if (CURRENT_AS(bracket_backtrack)->u.condfailed != NULL)
+    {
+    SLJIT_ASSERT(has_alternatives);
+    cond = JUMP(SLJIT_JUMP);
+    set_jumps(CURRENT_AS(bracket_backtrack)->u.condfailed, LABEL());
+    }
+  else
+    SLJIT_ASSERT(!has_alternatives);
+  }
+
+if (has_alternatives)
+  {
+  count = 1;
+  do
+    {
+    current->top = NULL;
+    current->topbacktracks = NULL;
+    current->nextbacktracks = NULL;
+    if (*cc == OP_ALT)
+      {
+      ccprev = cc + 1 + LINK_SIZE;
+      cc += GET(cc, 1);
+      if (opcode != OP_COND && opcode != OP_SCOND)
+        {
+        if (localptr != 0 && opcode != OP_ONCE)
+          OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+        else
+          OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+        }
+      compile_trypath(common, ccprev, cc, current);
+      if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+        return;
+      }
+
+    /* Instructions after the current alternative is succesfully matched. */
+    /* There is a similar code in compile_bracket_trypath. */
+    if (opcode == OP_ONCE)
+      {
+      if (CURRENT_AS(bracket_backtrack)->u.framesize < 0)
+        {
+        OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+        /* TMP2 which is set here used by OP_KETRMAX below. */
+        if (ket == OP_KETRMAX)
+          OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), 0);
+        else if (ket == OP_KETRMIN)
+          {
+          /* Move the STR_PTR to the localptr. */
+          OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_MEM1(STACK_TOP), 0);
+          }
+        }
+      else
+        {
+        OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_IMM, (CURRENT_AS(bracket_backtrack)->u.framesize + 2) * sizeof(sljit_w));
+        if (ket == OP_KETRMAX)
+          {
+          /* TMP2 which is set here used by OP_KETRMAX below. */
+          OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+          }
+        }
+      }
+
+    stacksize = 0;
+    if (opcode != OP_ONCE)
+      stacksize++;
+    if (ket != OP_KET || bra != OP_BRA)
+      stacksize++;
+
+    if (stacksize > 0) {
+      if (opcode != OP_ONCE || CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
+        allocate_stack(common, stacksize);
+      else
+        {
+        /* We know we have place at least for one item on the top of the stack. */
+        SLJIT_ASSERT(stacksize == 1);
+        OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_w));
+        }
+    }
+
+    stacksize = 0;
+    if (ket != OP_KET || bra != OP_BRA)
+      {
+      if (ket != OP_KET)
+        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
+      else
+        OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
+      stacksize++;
+      }
+
+    if (opcode != OP_ONCE)
+      OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, count++);
+
+    if (offset != 0)
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), STR_PTR, 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 0), TMP1, 0);
+      }
+
+    JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->alttrypath);
+
+    if (opcode != OP_ONCE)
+      {
+      SLJIT_ASSERT(jumplist);
+      JUMPHERE(jumplist->jump);
+      jumplist = jumplist->next;
+      }
+
+    COMPILE_BACKTRACKPATH(current->top);
+    if (current->topbacktracks)
+      set_jumps(current->topbacktracks, LABEL());
+    SLJIT_ASSERT(!current->nextbacktracks);
+    }
+  while (*cc == OP_ALT);
+  SLJIT_ASSERT(!jumplist);
+
+  if (cond != NULL)
+    {
+    SLJIT_ASSERT(opcode == OP_COND || opcode == OP_SCOND);
+    assert = CURRENT_AS(bracket_backtrack)->u.assert;
+    if ((ccbegin[1 + LINK_SIZE] == OP_ASSERT_NOT || ccbegin[1 + LINK_SIZE] == OP_ASSERTBACK_NOT) && assert->framesize >= 0)
+
+      {
+      OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), assert->localptr);
+      add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), assert->localptr, SLJIT_MEM1(STACK_TOP), assert->framesize * sizeof(sljit_w));
+      }
+    JUMPHERE(cond);
+    }
+
+  /* Free the STR_PTR. */
+  if (localptr == 0)
+    free_stack(common, 1);
+  }
+
+if (offset != 0)
+  {
+  /* Using both tmp register is better for instruction scheduling. */
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), TMP2, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_MEM1(STACK_TOP), STACK(2));
+  free_stack(common, 3);
+  }
+else if (opcode == OP_SBRA || opcode == OP_SCOND)
+  {
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_MEM1(STACK_TOP), STACK(0));
+  free_stack(common, 1);
+  }
+else if (opcode == OP_ONCE)
+  {
+  cc = ccbegin + GET(ccbegin, 1);
+  if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
+    {
+    /* Reset head and drop saved frame. */
+    stacksize = (ket == OP_KETRMAX || ket == OP_KETRMIN || *cc == OP_ALT) ? 2 : 1;
+    free_stack(common, CURRENT_AS(bracket_backtrack)->u.framesize + stacksize);
+    }
+  else if (ket == OP_KETRMAX || (*cc == OP_ALT && ket != OP_KETRMIN))
+    {
+    /* The STR_PTR must be released. */
+    free_stack(common, 1);
+    }
+
+  JUMPHERE(once);
+  /* Restore previous localptr */
+  if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(bracket_backtrack)->u.framesize * sizeof(sljit_w));
+  else if (ket == OP_KETRMIN)
+    {
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+    /* See the comment below. */
+    free_stack(common, 2);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), localptr, TMP1, 0);
+    }
+  }
+
+if (ket == OP_KETRMAX)
+  {
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  if (bra != OP_BRAZERO)
+    free_stack(common, 1);
+  CMPTO(SLJIT_C_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(bracket_backtrack)->recursivetrypath);
+  if (bra == OP_BRAZERO)
+    {
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+    JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->zerotrypath);
+    JUMPHERE(brazero);
+    free_stack(common, 1);
+    }
+  }
+else if (ket == OP_KETRMIN)
+  {
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+
+  /* OP_ONCE removes everything in case of a backtrack, so we don't
+  need to explicitly release the STR_PTR. The extra release would
+  affect badly the free_stack(2) above. */
+  if (opcode != OP_ONCE)
+    free_stack(common, 1);
+  CMPTO(SLJIT_C_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, rminlabel);
+  if (opcode == OP_ONCE)
+    free_stack(common, bra == OP_BRAMINZERO ? 2 : 1);
+  else if (bra == OP_BRAMINZERO)
+    free_stack(common, 1);
+  }
+else if (bra == OP_BRAZERO)
+  {
+  OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+  JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->zerotrypath);
+  JUMPHERE(brazero);
+  }
+}
+
+static void compile_bracketpos_backtrackpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+int offset;
+struct sljit_jump *jump;
+
+if (CURRENT_AS(bracketpos_backtrack)->framesize < 0)
+  {
+  if (*current->cc == OP_CBRAPOS || *current->cc == OP_SCBRAPOS)
+    {
+    offset = (GET2(current->cc, 1 + LINK_SIZE)) << 1;
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset), TMP1, 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(offset + 1), TMP2, 0);
+    }
+  set_jumps(current->topbacktracks, LABEL());
+  free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize);
+  return;
+  }
+
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), CURRENT_AS(bracketpos_backtrack)->localptr);
+add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+
+if (current->topbacktracks)
+  {
+  jump = JUMP(SLJIT_JUMP);
+  set_jumps(current->topbacktracks, LABEL());
+  /* Drop the stack frame. */
+  free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize);
+  JUMPHERE(jump);
+  }
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), CURRENT_AS(bracketpos_backtrack)->localptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(bracketpos_backtrack)->framesize * sizeof(sljit_w));
+}
+
+static void compile_braminzero_backtrackpath(compiler_common *common, struct backtrack_common *current)
+{
+assert_backtrack backtrack;
+
+current->top = NULL;
+current->topbacktracks = NULL;
+current->nextbacktracks = NULL;
+if (current->cc[1] > OP_ASSERTBACK_NOT)
+  {
+  /* Manual call of compile_bracket_trypath and compile_bracket_backtrackpath. */
+  compile_bracket_trypath(common, current->cc, current);
+  compile_bracket_backtrackpath(common, current->top);
+  }
+else
+  {
+  memset(&backtrack, 0, sizeof(backtrack));
+  backtrack.common.cc = current->cc;
+  backtrack.trypath = CURRENT_AS(braminzero_backtrack)->trypath;
+  /* Manual call of compile_assert_trypath. */
+  compile_assert_trypath(common, current->cc, &backtrack, FALSE);
+  }
+SLJIT_ASSERT(!current->nextbacktracks && !current->topbacktracks);
+}
+
+static void compile_backtrackpath(compiler_common *common, struct backtrack_common *current)
+{
+DEFINE_COMPILER;
+
+while (current)
+  {
+  if (current->nextbacktracks != NULL)
+    set_jumps(current->nextbacktracks, LABEL());
+  switch(*current->cc)
+    {
+    case OP_SET_SOM:
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    free_stack(common, 1);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), TMP1, 0);
+    break;
+
+    case OP_STAR:
+    case OP_MINSTAR:
+    case OP_PLUS:
+    case OP_MINPLUS:
+    case OP_QUERY:
+    case OP_MINQUERY:
+    case OP_UPTO:
+    case OP_MINUPTO:
+    case OP_EXACT:
+    case OP_POSSTAR:
+    case OP_POSPLUS:
+    case OP_POSQUERY:
+    case OP_POSUPTO:
+    case OP_STARI:
+    case OP_MINSTARI:
+    case OP_PLUSI:
+    case OP_MINPLUSI:
+    case OP_QUERYI:
+    case OP_MINQUERYI:
+    case OP_UPTOI:
+    case OP_MINUPTOI:
+    case OP_EXACTI:
+    case OP_POSSTARI:
+    case OP_POSPLUSI:
+    case OP_POSQUERYI:
+    case OP_POSUPTOI:
+    case OP_NOTSTAR:
+    case OP_NOTMINSTAR:
+    case OP_NOTPLUS:
+    case OP_NOTMINPLUS:
+    case OP_NOTQUERY:
+    case OP_NOTMINQUERY:
+    case OP_NOTUPTO:
+    case OP_NOTMINUPTO:
+    case OP_NOTEXACT:
+    case OP_NOTPOSSTAR:
+    case OP_NOTPOSPLUS:
+    case OP_NOTPOSQUERY:
+    case OP_NOTPOSUPTO:
+    case OP_NOTSTARI:
+    case OP_NOTMINSTARI:
+    case OP_NOTPLUSI:
+    case OP_NOTMINPLUSI:
+    case OP_NOTQUERYI:
+    case OP_NOTMINQUERYI:
+    case OP_NOTUPTOI:
+    case OP_NOTMINUPTOI:
+    case OP_NOTEXACTI:
+    case OP_NOTPOSSTARI:
+    case OP_NOTPOSPLUSI:
+    case OP_NOTPOSQUERYI:
+    case OP_NOTPOSUPTOI:
+    case OP_TYPESTAR:
+    case OP_TYPEMINSTAR:
+    case OP_TYPEPLUS:
+    case OP_TYPEMINPLUS:
+    case OP_TYPEQUERY:
+    case OP_TYPEMINQUERY:
+    case OP_TYPEUPTO:
+    case OP_TYPEMINUPTO:
+    case OP_TYPEEXACT:
+    case OP_TYPEPOSSTAR:
+    case OP_TYPEPOSPLUS:
+    case OP_TYPEPOSQUERY:
+    case OP_TYPEPOSUPTO:
+    case OP_CLASS:
+    case OP_NCLASS:
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+    case OP_XCLASS:
+#endif
+    compile_iterator_backtrackpath(common, current);
+    break;
+
+    case OP_REF:
+    case OP_REFI:
+    compile_ref_iterator_backtrackpath(common, current);
+    break;
+
+    case OP_RECURSE:
+    compile_recurse_backtrackpath(common, current);
+    break;
+
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    compile_assert_backtrackpath(common, current);
+    break;
+
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    case OP_BRA:
+    case OP_CBRA:
+    case OP_COND:
+    case OP_SBRA:
+    case OP_SCBRA:
+    case OP_SCOND:
+    compile_bracket_backtrackpath(common, current);
+    break;
+
+    case OP_BRAZERO:
+    if (current->cc[1] > OP_ASSERTBACK_NOT)
+      compile_bracket_backtrackpath(common, current);
+    else
+      compile_assert_backtrackpath(common, current);
+    break;
+
+    case OP_BRAPOS:
+    case OP_CBRAPOS:
+    case OP_SBRAPOS:
+    case OP_SCBRAPOS:
+    case OP_BRAPOSZERO:
+    compile_bracketpos_backtrackpath(common, current);
+    break;
+
+    case OP_BRAMINZERO:
+    compile_braminzero_backtrackpath(common, current);
+    break;
+
+    case OP_MARK:
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+    free_stack(common, 1);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, TMP1, 0);
+    break;
+
+    case OP_COMMIT:
+    OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_NOMATCH);
+    if (common->leavelabel == NULL)
+      add_jump(compiler, &common->leave, JUMP(SLJIT_JUMP));
+    else
+      JUMPTO(SLJIT_JUMP, common->leavelabel);
+    break;
+
+    case OP_FAIL:
+    case OP_ACCEPT:
+    case OP_ASSERT_ACCEPT:
+    set_jumps(current->topbacktracks, LABEL());
+    break;
+
+    default:
+    SLJIT_ASSERT_STOP();
+    break;
+    }
+  current = current->prev;
+  }
+}
+
+static SLJIT_INLINE void compile_recurse(compiler_common *common)
+{
+DEFINE_COMPILER;
+pcre_uchar *cc = common->start + common->currententry->start;
+pcre_uchar *ccbegin = cc + 1 + LINK_SIZE + (*cc == OP_BRA ? 0 : IMM2_SIZE);
+pcre_uchar *ccend = bracketend(cc);
+int localsize = get_localsize(common, ccbegin, ccend);
+int framesize = get_framesize(common, cc, TRUE);
+int alternativesize;
+BOOL needsframe;
+backtrack_common altbacktrack;
+struct sljit_label *save_leavelabel = common->leavelabel;
+jump_list *save_leave = common->leave;
+struct sljit_jump *jump;
+
+SLJIT_ASSERT(*cc == OP_BRA || *cc == OP_CBRA || *cc == OP_CBRAPOS || *cc == OP_SCBRA || *cc == OP_SCBRAPOS);
+needsframe = framesize >= 0;
+if (!needsframe)
+  framesize = 0;
+alternativesize = *(cc + GET(cc, 1)) == OP_ALT ? 1 : 0;
+
+SLJIT_ASSERT(common->currententry->entry == NULL && common->recursive_head != 0);
+common->currententry->entry = LABEL();
+set_jumps(common->currententry->calls, common->currententry->entry);
+
+sljit_emit_fast_enter(compiler, TMP2, 0);
+allocate_stack(common, localsize + framesize + alternativesize);
+OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(localsize + framesize + alternativesize - 1), TMP2, 0);
+copy_locals(common, ccbegin, ccend, TRUE, localsize + framesize + alternativesize, framesize + alternativesize);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->recursive_head, STACK_TOP, 0);
+if (needsframe)
+  init_frame(common, cc, framesize + alternativesize - 1, alternativesize, TRUE);
+
+if (alternativesize > 0)
+  OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
+
+memset(&altbacktrack, 0, sizeof(backtrack_common));
+common->leavelabel = NULL;
+common->acceptlabel = NULL;
+common->leave = NULL;
+common->accept = NULL;
+altbacktrack.cc = ccbegin;
+cc += GET(cc, 1);
+while (1)
+  {
+  altbacktrack.top = NULL;
+  altbacktrack.topbacktracks = NULL;
+
+  if (altbacktrack.cc != ccbegin)
+    OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
+
+  compile_trypath(common, altbacktrack.cc, cc, &altbacktrack);
+  if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+    {
+    common->leavelabel = save_leavelabel;
+    common->leave = save_leave;
+    return;
+    }
+
+  add_jump(compiler, &common->accept, JUMP(SLJIT_JUMP));
+
+  compile_backtrackpath(common, altbacktrack.top);
+  if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+    {
+    common->leavelabel = save_leavelabel;
+    common->leave = save_leave;
+    return;
+    }
+  set_jumps(altbacktrack.topbacktracks, LABEL());
+
+  if (*cc != OP_ALT)
+    break;
+
+  altbacktrack.cc = cc + 1 + LINK_SIZE;
+  cc += GET(cc, 1);
+  }
+/* None of them matched. */
+if (common->leave != NULL)
+  set_jumps(common->leave, LABEL());
+
+OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 0);
+jump = JUMP(SLJIT_JUMP);
+
+set_jumps(common->accept, LABEL());
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->recursive_head);
+if (needsframe)
+  {
+  OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_w));
+  add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+  OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_w));
+  }
+OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 1);
+
+JUMPHERE(jump);
+copy_locals(common, ccbegin, ccend, FALSE, localsize + framesize + alternativesize, framesize + alternativesize);
+free_stack(common, localsize + framesize + alternativesize);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), sizeof(sljit_w));
+OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->recursive_head, TMP2, 0);
+sljit_emit_fast_return(compiler, SLJIT_MEM1(STACK_TOP), 0);
+
+common->leavelabel = save_leavelabel;
+common->leave = save_leave;
+}
+
+#undef COMPILE_BACKTRACKPATH
+#undef CURRENT_AS
+
+void
+PRIV(jit_compile)(const REAL_PCRE *re, PUBL(extra) *extra, int mode)
+{
+struct sljit_compiler *compiler;
+backtrack_common rootbacktrack;
+compiler_common common_data;
+compiler_common *common = &common_data;
+const pcre_uint8 *tables = re->tables;
+pcre_study_data *study;
+int localsize;
+pcre_uchar *ccend;
+executable_functions *functions;
+void *executable_func;
+sljit_uw executable_size;
+struct sljit_label *mainloop = NULL;
+struct sljit_label *empty_match_found;
+struct sljit_label *empty_match_backtrack;
+struct sljit_jump *jump;
+struct sljit_jump *reqbyte_notfound = NULL;
+struct sljit_jump *empty_match;
+
+SLJIT_ASSERT((extra->flags & PCRE_EXTRA_STUDY_DATA) != 0);
+study = extra->study_data;
+
+if (!tables)
+  tables = PRIV(default_tables);
+
+memset(&rootbacktrack, 0, sizeof(backtrack_common));
+memset(common, 0, sizeof(compiler_common));
+rootbacktrack.cc = (pcre_uchar *)re + re->name_table_offset + re->name_count * re->name_entry_size;
+
+common->start = rootbacktrack.cc;
+common->fcc = tables + fcc_offset;
+common->lcc = (sljit_w)(tables + lcc_offset);
+common->mode = mode;
+common->nltype = NLTYPE_FIXED;
+switch(re->options & PCRE_NEWLINE_BITS)
+  {
+  case 0:
+  /* Compile-time default */
+  switch (NEWLINE)
+    {
+    case -1: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANY; break;
+    case -2: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANYCRLF; break;
+    default: common->newline = NEWLINE; break;
+    }
+  break;
+  case PCRE_NEWLINE_CR: common->newline = CHAR_CR; break;
+  case PCRE_NEWLINE_LF: common->newline = CHAR_NL; break;
+  case PCRE_NEWLINE_CR+
+       PCRE_NEWLINE_LF: common->newline = (CHAR_CR << 8) | CHAR_NL; break;
+  case PCRE_NEWLINE_ANY: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANY; break;
+  case PCRE_NEWLINE_ANYCRLF: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANYCRLF; break;
+  default: return;
+  }
+if ((re->options & PCRE_BSR_ANYCRLF) != 0)
+  common->bsr_nltype = NLTYPE_ANYCRLF;
+else if ((re->options & PCRE_BSR_UNICODE) != 0)
+  common->bsr_nltype = NLTYPE_ANY;
+else
+  {
+#ifdef BSR_ANYCRLF
+  common->bsr_nltype = NLTYPE_ANYCRLF;
+#else
+  common->bsr_nltype = NLTYPE_ANY;
+#endif
+  }
+common->endonly = (re->options & PCRE_DOLLAR_ENDONLY) != 0;
+common->ctypes = (sljit_w)(tables + ctypes_offset);
+common->name_table = (sljit_w)((pcre_uchar *)re + re->name_table_offset);
+common->name_count = re->name_count;
+common->name_entry_size = re->name_entry_size;
+common->jscript_compat = (re->options & PCRE_JAVASCRIPT_COMPAT) != 0;
+#ifdef SUPPORT_UTF
+/* PCRE_UTF16 has the same value as PCRE_UTF8. */
+common->utf = (re->options & PCRE_UTF8) != 0;
+#ifdef SUPPORT_UCP
+common->use_ucp = (re->options & PCRE_UCP) != 0;
+#endif
+#endif /* SUPPORT_UTF */
+ccend = bracketend(rootbacktrack.cc);
+
+/* Calculate the local space size on the stack. */
+common->ovector_start = CALL_LIMIT + sizeof(sljit_w);
+
+SLJIT_ASSERT(*rootbacktrack.cc == OP_BRA && ccend[-(1 + LINK_SIZE)] == OP_KET);
+localsize = get_localspace(common, rootbacktrack.cc, ccend);
+if (localsize < 0)
+  return;
+
+/* Checking flags and updating ovector_start. */
+if (mode == JIT_COMPILE && (re->flags & PCRE_REQCHSET) != 0 && (re->options & PCRE_NO_START_OPTIMIZE) == 0)
+  {
+  common->req_char_ptr = common->ovector_start;
+  common->ovector_start += sizeof(sljit_w);
+  }
+if (mode != JIT_COMPILE)
+  {
+  common->start_used_ptr = common->ovector_start;
+  common->ovector_start += sizeof(sljit_w);
+  if (mode == JIT_PARTIAL_SOFT_COMPILE)
+    {
+    common->hit_start = common->ovector_start;
+    common->ovector_start += sizeof(sljit_w);
+    }
+  }
+if ((re->options & PCRE_FIRSTLINE) != 0)
+  {
+  common->first_line_end = common->ovector_start;
+  common->ovector_start += sizeof(sljit_w);
+  }
+
+/* Aligning ovector to even number of sljit words. */
+if ((common->ovector_start & sizeof(sljit_w)) != 0)
+  common->ovector_start += sizeof(sljit_w);
+
+SLJIT_ASSERT(!(common->req_char_ptr != 0 && common->start_used_ptr != 0));
+common->cbraptr = OVECTOR_START + (re->top_bracket + 1) * 2 * sizeof(sljit_w);
+localsize += common->cbraptr + (re->top_bracket + 1) * sizeof(sljit_w);
+if (localsize > SLJIT_MAX_LOCAL_SIZE)
+  return;
+common->localptrs = (int *)SLJIT_MALLOC((ccend - rootbacktrack.cc) * sizeof(int));
+if (!common->localptrs)
+  return;
+memset(common->localptrs, 0, (ccend - rootbacktrack.cc) * sizeof(int));
+set_localptrs(common, common->cbraptr + (re->top_bracket + 1) * sizeof(sljit_w), ccend);
+
+compiler = sljit_create_compiler();
+if (!compiler)
+  {
+  SLJIT_FREE(common->localptrs);
+  return;
+  }
+common->compiler = compiler;
+
+/* Main pcre_jit_exec entry. */
+sljit_emit_enter(compiler, 1, 5, 5, localsize);
+
+/* Register init. */
+reset_ovector(common, (re->top_bracket + 1) * 2);
+if (common->req_char_ptr != 0)
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->req_char_ptr, SLJIT_TEMPORARY_REG1, 0);
+
+OP1(SLJIT_MOV, ARGUMENTS, 0, SLJIT_SAVED_REG1, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_SAVED_REG1, 0);
+OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, end));
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
+OP1(SLJIT_MOV_SI, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, calllimit));
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(struct sljit_stack, base));
+OP1(SLJIT_MOV, STACK_LIMIT, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(struct sljit_stack, limit));
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), CALL_LIMIT, TMP1, 0);
+
+if (mode == JIT_PARTIAL_SOFT_COMPILE)
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, 0);
+
+/* Main part of the matching */
+if ((re->options & PCRE_ANCHORED) == 0)
+  {
+  mainloop = mainloop_entry(common, (re->flags & PCRE_HASCRORLF) != 0, (re->options & PCRE_FIRSTLINE) != 0);
+  /* Forward search if possible. */
+  if ((re->options & PCRE_NO_START_OPTIMIZE) == 0)
+    {
+    if ((re->flags & PCRE_FIRSTSET) != 0)
+      fast_forward_first_char(common, (pcre_uchar)re->first_char, (re->flags & PCRE_FCH_CASELESS) != 0, (re->options & PCRE_FIRSTLINE) != 0);
+    else if ((re->flags & PCRE_STARTLINE) != 0)
+      fast_forward_newline(common, (re->options & PCRE_FIRSTLINE) != 0);
+    else if ((re->flags & PCRE_STARTLINE) == 0 && study != NULL && (study->flags & PCRE_STUDY_MAPPED) != 0)
+      fast_forward_start_bits(common, (sljit_uw)study->start_bits, (re->options & PCRE_FIRSTLINE) != 0);
+    }
+  }
+if (common->req_char_ptr != 0)
+  reqbyte_notfound = search_requested_char(common, (pcre_uchar)re->req_char, (re->flags & PCRE_RCH_CASELESS) != 0, (re->flags & PCRE_FIRSTSET) != 0);
+
+/* Store the current STR_PTR in OVECTOR(0). */
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0), STR_PTR, 0);
+/* Copy the limit of allowed recursions. */
+OP1(SLJIT_MOV, CALL_COUNT, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), CALL_LIMIT);
+if (common->mark_ptr != 0)
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->mark_ptr, SLJIT_IMM, 0);
+/* Copy the beginning of the string. */
+if (mode == JIT_PARTIAL_SOFT_COMPILE)
+  {
+  jump = CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, 0);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+  JUMPHERE(jump);
+  }
+else if (mode == JIT_PARTIAL_HARD_COMPILE)
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, STR_PTR, 0);
+
+compile_trypath(common, rootbacktrack.cc, ccend, &rootbacktrack);
+if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+  {
+  sljit_free_compiler(compiler);
+  SLJIT_FREE(common->localptrs);
+  return;
+  }
+
+empty_match = CMP(SLJIT_C_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+empty_match_found = LABEL();
+
+common->acceptlabel = LABEL();
+if (common->accept != NULL)
+  set_jumps(common->accept, common->acceptlabel);
+
+/* This means we have a match. Update the ovector. */
+copy_ovector(common, re->top_bracket + 1);
+common->leavelabel = LABEL();
+if (common->leave != NULL)
+  set_jumps(common->leave, common->leavelabel);
+sljit_emit_return(compiler, SLJIT_MOV, SLJIT_RETURN_REG, 0);
+
+if (mode != JIT_COMPILE)
+  {
+  common->partialmatchlabel = LABEL();
+  set_jumps(common->partialmatch, common->partialmatchlabel);
+  return_with_partial_match(common, common->leavelabel);
+  }
+
+empty_match_backtrack = LABEL();
+compile_backtrackpath(common, rootbacktrack.top);
+if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+  {
+  sljit_free_compiler(compiler);
+  SLJIT_FREE(common->localptrs);
+  return;
+  }
+
+SLJIT_ASSERT(rootbacktrack.prev == NULL);
+
+if (mode == JIT_PARTIAL_SOFT_COMPILE)
+  {
+  /* Update hit_start only in the first time. */
+  jump = CMP(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, -1);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->start_used_ptr, SLJIT_IMM, -1);
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, TMP1, 0);
+  JUMPHERE(jump);
+  }
+
+/* Check we have remaining characters. */
+OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), OVECTOR(0));
+
+if ((re->options & PCRE_ANCHORED) == 0)
+  {
+  if ((re->options & PCRE_FIRSTLINE) == 0)
+    {
+    if (mode == JIT_COMPILE && study != NULL && study->minlength > 1 && (re->options & PCRE_NO_START_OPTIMIZE) == 0)
+      {
+      OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(study->minlength + 1));
+      CMPTO(SLJIT_C_LESS_EQUAL, TMP1, 0, STR_END, 0, mainloop);
+      }
+    else
+      CMPTO(SLJIT_C_LESS, STR_PTR, 0, STR_END, 0, mainloop);
+    }
+  else
+    {
+    SLJIT_ASSERT(common->first_line_end != 0);
+    if (mode == JIT_COMPILE && study != NULL && study->minlength > 1 && (re->options & PCRE_NO_START_OPTIMIZE) == 0)
+      {
+      OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(study->minlength + 1));
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, STR_END, 0);
+      COND_VALUE(SLJIT_MOV, TMP2, 0, SLJIT_C_GREATER);
+      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end);
+      COND_VALUE(SLJIT_OR | SLJIT_SET_E, TMP2, 0, SLJIT_C_GREATER_EQUAL);
+      JUMPTO(SLJIT_C_ZERO, mainloop);
+      }
+    else
+      CMPTO(SLJIT_C_LESS, STR_PTR, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), common->first_line_end, mainloop);
+    }
+  }
+
+/* No more remaining characters. */
+if (reqbyte_notfound != NULL)
+  JUMPHERE(reqbyte_notfound);
+
+if (mode == JIT_PARTIAL_SOFT_COMPILE)
+  CMPTO(SLJIT_C_NOT_EQUAL, SLJIT_MEM1(SLJIT_LOCALS_REG), common->hit_start, SLJIT_IMM, 0, common->partialmatchlabel);
+
+OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_NOMATCH);
+JUMPTO(SLJIT_JUMP, common->leavelabel);
+
+flush_stubs(common);
+
+JUMPHERE(empty_match);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, notempty));
+CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0, empty_match_backtrack);
+OP1(SLJIT_MOV_UB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, notempty_atstart));
+CMPTO(SLJIT_C_EQUAL, TMP2, 0, SLJIT_IMM, 0, empty_match_found);
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
+CMPTO(SLJIT_C_NOT_EQUAL, TMP2, 0, STR_PTR, 0, empty_match_found);
+JUMPTO(SLJIT_JUMP, empty_match_backtrack);
+
+common->currententry = common->entries;
+while (common->currententry != NULL)
+  {
+  /* Might add new entries. */
+  compile_recurse(common);
+  if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
+    {
+    sljit_free_compiler(compiler);
+    SLJIT_FREE(common->localptrs);
+    return;
+    }
+  flush_stubs(common);
+  common->currententry = common->currententry->next;
+  }
+
+/* Allocating stack, returns with PCRE_ERROR_JIT_STACKLIMIT if fails. */
+/* This is a (really) rare case. */
+set_jumps(common->stackalloc, LABEL());
+/* RETURN_ADDR is not a saved register. */
+sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1, TMP2, 0);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, top), STACK_TOP, 0);
+OP2(SLJIT_ADD, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, limit), SLJIT_IMM, STACK_GROWTH_RATE);
+
+sljit_emit_ijump(compiler, SLJIT_CALL2, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_stack_resize));
+jump = CMP(SLJIT_C_NOT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0);
+OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
+OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
+OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, top));
+OP1(SLJIT_MOV, STACK_LIMIT, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, limit));
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS1);
+sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), LOCALS0);
+
+/* Allocation failed. */
+JUMPHERE(jump);
+/* We break the return address cache here, but this is a really rare case. */
+OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_JIT_STACKLIMIT);
+JUMPTO(SLJIT_JUMP, common->leavelabel);
+
+/* Call limit reached. */
+set_jumps(common->calllimit, LABEL());
+OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE_ERROR_MATCHLIMIT);
+JUMPTO(SLJIT_JUMP, common->leavelabel);
+
+if (common->revertframes != NULL)
+  {
+  set_jumps(common->revertframes, LABEL());
+  do_revertframes(common);
+  }
+if (common->wordboundary != NULL)
+  {
+  set_jumps(common->wordboundary, LABEL());
+  check_wordboundary(common);
+  }
+if (common->anynewline != NULL)
+  {
+  set_jumps(common->anynewline, LABEL());
+  check_anynewline(common);
+  }
+if (common->hspace != NULL)
+  {
+  set_jumps(common->hspace, LABEL());
+  check_hspace(common);
+  }
+if (common->vspace != NULL)
+  {
+  set_jumps(common->vspace, LABEL());
+  check_vspace(common);
+  }
+if (common->casefulcmp != NULL)
+  {
+  set_jumps(common->casefulcmp, LABEL());
+  do_casefulcmp(common);
+  }
+if (common->caselesscmp != NULL)
+  {
+  set_jumps(common->caselesscmp, LABEL());
+  do_caselesscmp(common);
+  }
+#ifdef SUPPORT_UTF
+if (common->utfreadchar != NULL)
+  {
+  set_jumps(common->utfreadchar, LABEL());
+  do_utfreadchar(common);
+  }
+#ifdef COMPILE_PCRE8
+if (common->utfreadtype8 != NULL)
+  {
+  set_jumps(common->utfreadtype8, LABEL());
+  do_utfreadtype8(common);
+  }
+#endif
+#endif /* COMPILE_PCRE8 */
+#ifdef SUPPORT_UCP
+if (common->getucd != NULL)
+  {
+  set_jumps(common->getucd, LABEL());
+  do_getucd(common);
+  }
+#endif
+
+SLJIT_FREE(common->localptrs);
+executable_func = sljit_generate_code(compiler);
+executable_size = sljit_get_generated_code_size(compiler);
+sljit_free_compiler(compiler);
+if (executable_func == NULL)
+  return;
+
+/* Reuse the function descriptor if possible. */
+if ((extra->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 && extra->executable_jit != NULL)
+  functions = (executable_functions *)extra->executable_jit;
+else
+  {
+  functions = SLJIT_MALLOC(sizeof(executable_functions));
+  if (functions == NULL)
+    {
+    /* This case is highly unlikely since we just recently
+    freed a lot of memory. Although not impossible. */
+    sljit_free_code(executable_func);
+    return;
+    }
+  memset(functions, 0, sizeof(executable_functions));
+  extra->executable_jit = functions;
+  extra->flags |= PCRE_EXTRA_EXECUTABLE_JIT;
+  }
+
+functions->executable_funcs[mode] = executable_func;
+functions->executable_sizes[mode] = executable_size;
+}
+
+static int jit_machine_stack_exec(jit_arguments *arguments, void* executable_func)
+{
+union {
+   void* executable_func;
+   jit_function call_executable_func;
+} convert_executable_func;
+pcre_uint8 local_area[LOCAL_SPACE_SIZE];
+struct sljit_stack local_stack;
+
+local_stack.top = (sljit_w)&local_area;
+local_stack.base = local_stack.top;
+local_stack.limit = local_stack.base + LOCAL_SPACE_SIZE;
+local_stack.max_limit = local_stack.limit;
+arguments->stack = &local_stack;
+convert_executable_func.executable_func = executable_func;
+return convert_executable_func.call_executable_func(arguments);
+}
+
+int
+PRIV(jit_exec)(const REAL_PCRE *re, const PUBL(extra) *extra_data, const pcre_uchar *subject,
+  int length, int start_offset, int options, int *offsets, int offsetcount)
+{
+executable_functions *functions = (executable_functions *)extra_data->executable_jit;
+union {
+   void* executable_func;
+   jit_function call_executable_func;
+} convert_executable_func;
+jit_arguments arguments;
+int maxoffsetcount;
+int retval;
+int mode = JIT_COMPILE;
+
+if ((options & PCRE_PARTIAL_HARD) != 0)
+  mode = JIT_PARTIAL_HARD_COMPILE;
+else if ((options & PCRE_PARTIAL_SOFT) != 0)
+  mode = JIT_PARTIAL_SOFT_COMPILE;
+
+if (functions->executable_funcs[mode] == NULL)
+  return PCRE_ERROR_NULL;
+
+/* Sanity checks should be handled by pcre_exec. */
+arguments.stack = NULL;
+arguments.str = subject + start_offset;
+arguments.begin = subject;
+arguments.end = subject + length;
+arguments.mark_ptr = NULL;
+/* JIT decreases this value less frequently than the interpreter. */
+arguments.calllimit = ((extra_data->flags & PCRE_EXTRA_MATCH_LIMIT) == 0) ? MATCH_LIMIT : extra_data->match_limit;
+arguments.notbol = (options & PCRE_NOTBOL) != 0;
+arguments.noteol = (options & PCRE_NOTEOL) != 0;
+arguments.notempty = (options & PCRE_NOTEMPTY) != 0;
+arguments.notempty_atstart = (options & PCRE_NOTEMPTY_ATSTART) != 0;
+arguments.offsets = offsets;
+
+/* pcre_exec() rounds offsetcount to a multiple of 3, and then uses only 2/3 of
+the output vector for storing captured strings, with the remainder used as
+workspace. We don't need the workspace here. For compatibility, we limit the
+number of captured strings in the same way as pcre_exec(), so that the user
+gets the same result with and without JIT. */
+
+if (offsetcount != 2)
+  offsetcount = ((offsetcount - (offsetcount % 3)) * 2) / 3;
+maxoffsetcount = (re->top_bracket + 1) * 2;
+if (offsetcount > maxoffsetcount)
+  offsetcount = maxoffsetcount;
+arguments.offsetcount = offsetcount;
+
+if (functions->callback)
+  arguments.stack = (struct sljit_stack *)functions->callback(functions->userdata);
+else
+  arguments.stack = (struct sljit_stack *)functions->userdata;
+
+if (arguments.stack == NULL)
+  retval = jit_machine_stack_exec(&arguments, functions->executable_funcs[mode]);
+else
+  {
+  convert_executable_func.executable_func = functions->executable_funcs[mode];
+  retval = convert_executable_func.call_executable_func(&arguments);
+  }
+
+if (retval * 2 > offsetcount)
+  retval = 0;
+if ((extra_data->flags & PCRE_EXTRA_MARK) != 0)
+  *(extra_data->mark) = arguments.mark_ptr;
+
+return retval;
+}
+
+void
+PRIV(jit_free)(void *executable_funcs)
+{
+int i;
+executable_functions *functions = (executable_functions *)executable_funcs;
+for (i = 0; i < JIT_NUMBER_OF_COMPILE_MODES; i++)
+  {
+  if (functions->executable_funcs[i] != NULL)
+    sljit_free_code(functions->executable_funcs[i]);
+  }
+SLJIT_FREE(functions);
+}
+
+int
+PRIV(jit_get_size)(void *executable_funcs)
+{
+int i;
+sljit_uw size = 0;
+sljit_uw *executable_sizes = ((executable_functions *)executable_funcs)->executable_sizes;
+for (i = 0; i < JIT_NUMBER_OF_COMPILE_MODES; i++)
+  size += executable_sizes[i];
+return (int)size;
+}
+
+const char*
+PRIV(jit_get_target)(void)
+{
+return sljit_get_platform_name();
+}
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DECL pcre_jit_stack *
+pcre_jit_stack_alloc(int startsize, int maxsize)
+#else
+PCRE_EXP_DECL pcre16_jit_stack *
+pcre16_jit_stack_alloc(int startsize, int maxsize)
+#endif
+{
+if (startsize < 1 || maxsize < 1)
+  return NULL;
+if (startsize > maxsize)
+  startsize = maxsize;
+startsize = (startsize + STACK_GROWTH_RATE - 1) & ~(STACK_GROWTH_RATE - 1);
+maxsize = (maxsize + STACK_GROWTH_RATE - 1) & ~(STACK_GROWTH_RATE - 1);
+return (PUBL(jit_stack)*)sljit_allocate_stack(startsize, maxsize);
+}
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DECL void
+pcre_jit_stack_free(pcre_jit_stack *stack)
+#else
+PCRE_EXP_DECL void
+pcre16_jit_stack_free(pcre16_jit_stack *stack)
+#endif
+{
+sljit_free_stack((struct sljit_stack *)stack);
+}
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DECL void
+pcre_assign_jit_stack(pcre_extra *extra, pcre_jit_callback callback, void *userdata)
+#else
+PCRE_EXP_DECL void
+pcre16_assign_jit_stack(pcre16_extra *extra, pcre16_jit_callback callback, void *userdata)
+#endif
+{
+executable_functions *functions;
+if (extra != NULL &&
+    (extra->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 &&
+    extra->executable_jit != NULL)
+  {
+  functions = (executable_functions *)extra->executable_jit;
+  functions->callback = callback;
+  functions->userdata = userdata;
+  }
+}
+
+#else  /* SUPPORT_JIT */
+
+/* These are dummy functions to avoid linking errors when JIT support is not
+being compiled. */
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DECL pcre_jit_stack *
+pcre_jit_stack_alloc(int startsize, int maxsize)
+#else
+PCRE_EXP_DECL pcre16_jit_stack *
+pcre16_jit_stack_alloc(int startsize, int maxsize)
+#endif
+{
+(void)startsize;
+(void)maxsize;
+return NULL;
+}
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DECL void
+pcre_jit_stack_free(pcre_jit_stack *stack)
+#else
+PCRE_EXP_DECL void
+pcre16_jit_stack_free(pcre16_jit_stack *stack)
+#endif
+{
+(void)stack;
+}
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DECL void
+pcre_assign_jit_stack(pcre_extra *extra, pcre_jit_callback callback, void *userdata)
+#else
+PCRE_EXP_DECL void
+pcre16_assign_jit_stack(pcre16_extra *extra, pcre16_jit_callback callback, void *userdata)
+#endif
+{
+(void)extra;
+(void)callback;
+(void)userdata;
+}
+
+#endif
+
+/* End of pcre_jit_compile.c */
diff --git a/8.31/pcre_maketables.c b/8.31/pcre_maketables.c
new file mode 100644
index 0000000..1275cb2
--- /dev/null
+++ b/8.31/pcre_maketables.c
@@ -0,0 +1,148 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains the external function pcre_maketables(), which builds
+character tables for PCRE in the current locale. The file is compiled on its
+own as part of the PCRE library. However, it is also included in the
+compilation of dftables.c, in which case the macro DFTABLES is defined. */
+
+
+#ifndef DFTABLES
+#  ifdef HAVE_CONFIG_H
+#  include "config.h"
+#  endif
+#  include "pcre_internal.h"
+#endif
+
+
+/*************************************************
+*           Create PCRE character tables         *
+*************************************************/
+
+/* This function builds a set of character tables for use by PCRE and returns
+a pointer to them. They are build using the ctype functions, and consequently
+their contents will depend upon the current locale setting. When compiled as
+part of the library, the store is obtained via PUBL(malloc)(), but when
+compiled inside dftables, use malloc().
+
+Arguments:   none
+Returns:     pointer to the contiguous block of data
+*/
+
+#ifdef COMPILE_PCRE8
+const unsigned char *
+pcre_maketables(void)
+#else
+const unsigned char *
+pcre16_maketables(void)
+#endif
+{
+unsigned char *yield, *p;
+int i;
+
+#ifndef DFTABLES
+yield = (unsigned char*)(PUBL(malloc))(tables_length);
+#else
+yield = (unsigned char*)malloc(tables_length);
+#endif
+
+if (yield == NULL) return NULL;
+p = yield;
+
+/* First comes the lower casing table */
+
+for (i = 0; i < 256; i++) *p++ = tolower(i);
+
+/* Next the case-flipping table */
+
+for (i = 0; i < 256; i++) *p++ = islower(i)? toupper(i) : tolower(i);
+
+/* Then the character class tables. Don't try to be clever and save effort on
+exclusive ones - in some locales things may be different. Note that the table
+for "space" includes everything "isspace" gives, including VT in the default
+locale. This makes it work for the POSIX class [:space:]. Note also that it is
+possible for a character to be alnum or alpha without being lower or upper,
+such as "male and female ordinals" (\xAA and \xBA) in the fr_FR locale (at
+least under Debian Linux's locales as of 12/2005). So we must test for alnum
+specially. */
+
+memset(p, 0, cbit_length);
+for (i = 0; i < 256; i++)
+  {
+  if (isdigit(i)) p[cbit_digit  + i/8] |= 1 << (i&7);
+  if (isupper(i)) p[cbit_upper  + i/8] |= 1 << (i&7);
+  if (islower(i)) p[cbit_lower  + i/8] |= 1 << (i&7);
+  if (isalnum(i)) p[cbit_word   + i/8] |= 1 << (i&7);
+  if (i == '_')   p[cbit_word   + i/8] |= 1 << (i&7);
+  if (isspace(i)) p[cbit_space  + i/8] |= 1 << (i&7);
+  if (isxdigit(i))p[cbit_xdigit + i/8] |= 1 << (i&7);
+  if (isgraph(i)) p[cbit_graph  + i/8] |= 1 << (i&7);
+  if (isprint(i)) p[cbit_print  + i/8] |= 1 << (i&7);
+  if (ispunct(i)) p[cbit_punct  + i/8] |= 1 << (i&7);
+  if (iscntrl(i)) p[cbit_cntrl  + i/8] |= 1 << (i&7);
+  }
+p += cbit_length;
+
+/* Finally, the character type table. In this, we exclude VT from the white
+space chars, because Perl doesn't recognize it as such for \s and for comments
+within regexes. */
+
+for (i = 0; i < 256; i++)
+  {
+  int x = 0;
+  if (i != 0x0b && isspace(i)) x += ctype_space;
+  if (isalpha(i)) x += ctype_letter;
+  if (isdigit(i)) x += ctype_digit;
+  if (isxdigit(i)) x += ctype_xdigit;
+  if (isalnum(i) || i == '_') x += ctype_word;
+
+  /* Note: strchr includes the terminating zero in the characters it considers.
+  In this instance, that is ok because we want binary zero to be flagged as a
+  meta-character, which in this sense is any character that terminates a run
+  of data characters. */
+
+  if (strchr("\\*+?{^.$|()[", i) != 0) x += ctype_meta;
+  *p++ = x;
+  }
+
+return yield;
+}
+
+/* End of pcre_maketables.c */
diff --git a/8.31/pcre_newline.c b/8.31/pcre_newline.c
new file mode 100644
index 0000000..a0a13c8
--- /dev/null
+++ b/8.31/pcre_newline.c
@@ -0,0 +1,184 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains internal functions for testing newlines when more than
+one kind of newline is to be recognized. When a newline is found, its length is
+returned. In principle, we could implement several newline "types", each
+referring to a different set of newline characters. At present, PCRE supports
+only NLTYPE_FIXED, which gets handled without these functions, NLTYPE_ANYCRLF,
+and NLTYPE_ANY. The full list of Unicode newline characters is taken from
+http://unicode.org/unicode/reports/tr18/. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+
+/*************************************************
+*      Check for newline at given position       *
+*************************************************/
+
+/* It is guaranteed that the initial value of ptr is less than the end of the
+string that is being processed.
+
+Arguments:
+  ptr          pointer to possible newline
+  type         the newline type
+  endptr       pointer to the end of the string
+  lenptr       where to return the length
+  utf          TRUE if in utf mode
+
+Returns:       TRUE or FALSE
+*/
+
+BOOL
+PRIV(is_newline)(PCRE_PUCHAR ptr, int type, PCRE_PUCHAR endptr, int *lenptr,
+  BOOL utf)
+{
+int c;
+(void)utf;
+#ifdef SUPPORT_UTF
+if (utf)
+  {
+  GETCHAR(c, ptr);
+  }
+else
+#endif  /* SUPPORT_UTF */
+  c = *ptr;
+
+if (type == NLTYPE_ANYCRLF) switch(c)
+  {
+  case 0x000a: *lenptr = 1; return TRUE;             /* LF */
+  case 0x000d: *lenptr = (ptr < endptr - 1 && ptr[1] == 0x0a)? 2 : 1;
+               return TRUE;                          /* CR */
+  default: return FALSE;
+  }
+
+/* NLTYPE_ANY */
+
+else switch(c)
+  {
+  case 0x000a:                                       /* LF */
+  case 0x000b:                                       /* VT */
+  case 0x000c: *lenptr = 1; return TRUE;             /* FF */
+  case 0x000d: *lenptr = (ptr < endptr - 1 && ptr[1] == 0x0a)? 2 : 1;
+               return TRUE;                          /* CR */
+#ifdef COMPILE_PCRE8
+  case 0x0085: *lenptr = utf? 2 : 1; return TRUE;    /* NEL */
+  case 0x2028:                                       /* LS */
+  case 0x2029: *lenptr = 3; return TRUE;             /* PS */
+#else
+  case 0x0085:                                       /* NEL */
+  case 0x2028:                                       /* LS */
+  case 0x2029: *lenptr = 1; return TRUE;             /* PS */
+#endif /* COMPILE_PCRE8 */
+  default: return FALSE;
+  }
+}
+
+
+
+/*************************************************
+*     Check for newline at previous position     *
+*************************************************/
+
+/* It is guaranteed that the initial value of ptr is greater than the start of
+the string that is being processed.
+
+Arguments:
+  ptr          pointer to possible newline
+  type         the newline type
+  startptr     pointer to the start of the string
+  lenptr       where to return the length
+  utf          TRUE if in utf mode
+
+Returns:       TRUE or FALSE
+*/
+
+BOOL
+PRIV(was_newline)(PCRE_PUCHAR ptr, int type, PCRE_PUCHAR startptr, int *lenptr,
+  BOOL utf)
+{
+int c;
+(void)utf;
+ptr--;
+#ifdef SUPPORT_UTF
+if (utf)
+  {
+  BACKCHAR(ptr);
+  GETCHAR(c, ptr);
+  }
+else
+#endif  /* SUPPORT_UTF */
+  c = *ptr;
+
+if (type == NLTYPE_ANYCRLF) switch(c)
+  {
+  case 0x000a: *lenptr = (ptr > startptr && ptr[-1] == 0x0d)? 2 : 1;
+               return TRUE;                         /* LF */
+  case 0x000d: *lenptr = 1; return TRUE;            /* CR */
+  default: return FALSE;
+  }
+
+else switch(c)
+  {
+  case 0x000a: *lenptr = (ptr > startptr && ptr[-1] == 0x0d)? 2 : 1;
+               return TRUE;                         /* LF */
+  case 0x000b:                                      /* VT */
+  case 0x000c:                                      /* FF */
+  case 0x000d: *lenptr = 1; return TRUE;            /* CR */
+#ifdef COMPILE_PCRE8
+  case 0x0085: *lenptr = utf? 2 : 1; return TRUE;   /* NEL */
+  case 0x2028:                                      /* LS */
+  case 0x2029: *lenptr = 3; return TRUE;            /* PS */
+#else
+  case 0x0085:                                       /* NEL */
+  case 0x2028:                                       /* LS */
+  case 0x2029: *lenptr = 1; return TRUE;             /* PS */
+#endif /* COMPILE_PCRE8 */
+  default: return FALSE;
+  }
+}
+
+/* End of pcre_newline.c */
diff --git a/8.31/pcre_ord2utf8.c b/8.31/pcre_ord2utf8.c
new file mode 100644
index 0000000..50fca95
--- /dev/null
+++ b/8.31/pcre_ord2utf8.c
@@ -0,0 +1,97 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This file contains a private PCRE function that converts an ordinal
+character value into a UTF8 string. */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+*       Convert character value to UTF-8         *
+*************************************************/
+
+/* This function takes an integer value in the range 0 - 0x10ffff
+and encodes it as a UTF-8 character in 1 to 6 pcre_uchars.
+
+Arguments:
+  cvalue     the character value
+  buffer     pointer to buffer for result - at least 6 pcre_uchars long
+
+Returns:     number of characters placed in the buffer
+*/
+
+int
+PRIV(ord2utf)(pcre_uint32 cvalue, pcre_uchar *buffer)
+{
+#ifdef SUPPORT_UTF
+
+register int i, j;
+
+/* Checking invalid cvalue character, encoded as invalid UTF-16 character.
+Should never happen in practice. */
+if ((cvalue & 0xf800) == 0xd800 || cvalue >= 0x110000)
+  cvalue = 0xfffe;
+
+for (i = 0; i < PRIV(utf8_table1_size); i++)
+  if ((int)cvalue <= PRIV(utf8_table1)[i]) break;
+buffer += i;
+for (j = i; j > 0; j--)
+ {
+ *buffer-- = 0x80 | (cvalue & 0x3f);
+ cvalue >>= 6;
+ }
+*buffer = PRIV(utf8_table2)[i] | cvalue;
+return i + 1;
+
+#else
+
+(void)(cvalue);  /* Keep compiler happy; this function won't ever be */
+(void)(buffer);  /* called when SUPPORT_UTF is not defined. */
+return 0;
+
+#endif
+}
+
+/* End of pcre_ord2utf8.c */
diff --git a/8.31/pcre_printint.c b/8.31/pcre_printint.c
new file mode 100644
index 0000000..b6f720d
--- /dev/null
+++ b/8.31/pcre_printint.c
@@ -0,0 +1,710 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains a PCRE private debugging function for printing out the
+internal form of a compiled regular expression, along with some supporting
+local functions. This source file is used in two places:
+
+(1) It is #included by pcre_compile.c when it is compiled in debugging mode
+(PCRE_DEBUG defined in pcre_internal.h). It is not included in production
+compiles. In this case PCRE_INCLUDED is defined.
+
+(2) It is also compiled separately and linked with pcretest.c, which can be
+asked to print out a compiled regex for debugging purposes. */
+
+#ifndef PCRE_INCLUDED
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/* For pcretest program. */
+#define PRIV(name) name
+
+/* We have to include pcre_internal.h because we need the internal info for
+displaying the results of pcre_study() and we also need to know about the
+internal macros, structures, and other internal data values; pcretest has
+"inside information" compared to a program that strictly follows the PCRE API.
+
+Although pcre_internal.h does itself include pcre.h, we explicitly include it
+here before pcre_internal.h so that the PCRE_EXP_xxx macros get set
+appropriately for an application, not for building PCRE. */
+
+#include "pcre.h"
+#include "pcre_internal.h"
+
+/* These are the funtions that are contained within. It doesn't seem worth
+having a separate .h file just for this. */
+
+#endif /* PCRE_INCLUDED */
+
+#ifdef PCRE_INCLUDED
+static /* Keep the following function as private. */
+#endif
+#ifdef COMPILE_PCRE8
+void pcre_printint(pcre *external_re, FILE *f, BOOL print_lengths);
+#else
+void pcre16_printint(pcre *external_re, FILE *f, BOOL print_lengths);
+#endif
+
+/* Macro that decides whether a character should be output as a literal or in
+hexadecimal. We don't use isprint() because that can vary from system to system
+(even without the use of locales) and we want the output always to be the same,
+for testing purposes. */
+
+#ifdef EBCDIC
+#define PRINTABLE(c) ((c) >= 64 && (c) < 255)
+#else
+#define PRINTABLE(c) ((c) >= 32 && (c) < 127)
+#endif
+
+/* The table of operator names. */
+
+static const char *priv_OP_names[] = { OP_NAME_LIST };
+
+/* This table of operator lengths is not actually used by the working code,
+but its size is needed for a check that ensures it is the correct size for the
+number of opcodes (thus catching update omissions). */
+
+static const pcre_uint8 priv_OP_lengths[] = { OP_LENGTHS };
+
+
+
+/*************************************************
+*       Print single- or multi-byte character    *
+*************************************************/
+
+static int
+print_char(FILE *f, pcre_uchar *ptr, BOOL utf)
+{
+int c = *ptr;
+
+#ifndef SUPPORT_UTF
+
+(void)utf;  /* Avoid compiler warning */
+if (PRINTABLE(c)) fprintf(f, "%c", c);
+else if (c <= 0xff) fprintf(f, "\\x%02x", c);
+else fprintf(f, "\\x{%x}", c);
+return 0;
+
+#else
+
+#ifdef COMPILE_PCRE8
+
+if (!utf || (c & 0xc0) != 0xc0)
+  {
+  if (PRINTABLE(c)) fprintf(f, "%c", c); else fprintf(f, "\\x%02x", c);
+  return 0;
+  }
+else
+  {
+  int i;
+  int a = PRIV(utf8_table4)[c & 0x3f];  /* Number of additional bytes */
+  int s = 6*a;
+  c = (c & PRIV(utf8_table3)[a]) << s;
+  for (i = 1; i <= a; i++)
+    {
+    /* This is a check for malformed UTF-8; it should only occur if the sanity
+    check has been turned off. Rather than swallow random bytes, just stop if
+    we hit a bad one. Print it with \X instead of \x as an indication. */
+
+    if ((ptr[i] & 0xc0) != 0x80)
+      {
+      fprintf(f, "\\X{%x}", c);
+      return i - 1;
+      }
+
+    /* The byte is OK */
+
+    s -= 6;
+    c |= (ptr[i] & 0x3f) << s;
+    }
+  fprintf(f, "\\x{%x}", c);
+  return a;
+  }
+
+#else
+
+#ifdef COMPILE_PCRE16
+
+if (!utf || (c & 0xfc00) != 0xd800)
+  {
+  if (PRINTABLE(c)) fprintf(f, "%c", c);
+  else if (c <= 0xff) fprintf(f, "\\x%02x", c);
+  else fprintf(f, "\\x{%x}", c);
+  return 0;
+  }
+else
+  {
+  /* This is a check for malformed UTF-16; it should only occur if the sanity
+  check has been turned off. Rather than swallow a low surrogate, just stop if
+  we hit a bad one. Print it with \X instead of \x as an indication. */
+
+  if ((ptr[1] & 0xfc00) != 0xdc00)
+    {
+    fprintf(f, "\\X{%x}", c);
+    return 0;
+    }
+
+  c = (((c & 0x3ff) << 10) | (ptr[1] & 0x3ff)) + 0x10000;
+  fprintf(f, "\\x{%x}", c);
+  return 1;
+  }
+
+#endif /* COMPILE_PCRE16 */
+
+#endif /* COMPILE_PCRE8 */
+
+#endif /* SUPPORT_UTF */
+}
+
+/*************************************************
+*  Print uchar string (regardless of utf)        *
+*************************************************/
+
+static void
+print_puchar(FILE *f, PCRE_PUCHAR ptr)
+{
+while (*ptr != '\0')
+  {
+  register int c = *ptr++;
+  if (PRINTABLE(c)) fprintf(f, "%c", c); else fprintf(f, "\\x{%x}", c);
+  }
+}
+
+/*************************************************
+*          Find Unicode property name            *
+*************************************************/
+
+static const char *
+get_ucpname(int ptype, int pvalue)
+{
+#ifdef SUPPORT_UCP
+int i;
+for (i = PRIV(utt_size) - 1; i >= 0; i--)
+  {
+  if (ptype == PRIV(utt)[i].type && pvalue == PRIV(utt)[i].value) break;
+  }
+return (i >= 0)? PRIV(utt_names) + PRIV(utt)[i].name_offset : "??";
+#else
+/* It gets harder and harder to shut off unwanted compiler warnings. */
+ptype = ptype * pvalue;
+return (ptype == pvalue)? "??" : "??";
+#endif
+}
+
+
+
+/*************************************************
+*         Print compiled regex                   *
+*************************************************/
+
+/* Make this function work for a regex with integers either byte order.
+However, we assume that what we are passed is a compiled regex. The
+print_lengths flag controls whether offsets and lengths of items are printed.
+They can be turned off from pcretest so that automatic tests on bytecode can be
+written that do not depend on the value of LINK_SIZE. */
+
+#ifdef PCRE_INCLUDED
+static /* Keep the following function as private. */
+#endif
+#ifdef COMPILE_PCRE8
+void
+pcre_printint(pcre *external_re, FILE *f, BOOL print_lengths)
+#else
+void
+pcre16_printint(pcre *external_re, FILE *f, BOOL print_lengths)
+#endif
+{
+REAL_PCRE *re = (REAL_PCRE *)external_re;
+pcre_uchar *codestart, *code;
+BOOL utf;
+
+unsigned int options = re->options;
+int offset = re->name_table_offset;
+int count = re->name_count;
+int size = re->name_entry_size;
+
+if (re->magic_number != MAGIC_NUMBER)
+  {
+  offset = ((offset << 8) & 0xff00) | ((offset >> 8) & 0xff);
+  count = ((count << 8) & 0xff00) | ((count >> 8) & 0xff);
+  size = ((size << 8) & 0xff00) | ((size >> 8) & 0xff);
+  options = ((options << 24) & 0xff000000) |
+            ((options <<  8) & 0x00ff0000) |
+            ((options >>  8) & 0x0000ff00) |
+            ((options >> 24) & 0x000000ff);
+  }
+
+code = codestart = (pcre_uchar *)re + offset + count * size;
+/* PCRE_UTF16 has the same value as PCRE_UTF8. */
+utf = (options & PCRE_UTF8) != 0;
+
+for(;;)
+  {
+  pcre_uchar *ccode;
+  const char *flag = "  ";
+  int c;
+  int extra = 0;
+
+  if (print_lengths)
+    fprintf(f, "%3d ", (int)(code - codestart));
+  else
+    fprintf(f, "    ");
+
+  switch(*code)
+    {
+/* ========================================================================== */
+      /* These cases are never obeyed. This is a fudge that causes a compile-
+      time error if the vectors OP_names or OP_lengths, which are indexed
+      by opcode, are not the correct length. It seems to be the only way to do
+      such a check at compile time, as the sizeof() operator does not work in
+      the C preprocessor. */
+
+      case OP_TABLE_LENGTH:
+      case OP_TABLE_LENGTH +
+        ((sizeof(priv_OP_names)/sizeof(const char *) == OP_TABLE_LENGTH) &&
+        (sizeof(priv_OP_lengths) == OP_TABLE_LENGTH)):
+      break;
+/* ========================================================================== */
+
+    case OP_END:
+    fprintf(f, "    %s\n", priv_OP_names[*code]);
+    fprintf(f, "------------------------------------------------------------------\n");
+    return;
+
+    case OP_CHAR:
+    fprintf(f, "    ");
+    do
+      {
+      code++;
+      code += 1 + print_char(f, code, utf);
+      }
+    while (*code == OP_CHAR);
+    fprintf(f, "\n");
+    continue;
+
+    case OP_CHARI:
+    fprintf(f, " /i ");
+    do
+      {
+      code++;
+      code += 1 + print_char(f, code, utf);
+      }
+    while (*code == OP_CHARI);
+    fprintf(f, "\n");
+    continue;
+
+    case OP_CBRA:
+    case OP_CBRAPOS:
+    case OP_SCBRA:
+    case OP_SCBRAPOS:
+    if (print_lengths) fprintf(f, "%3d ", GET(code, 1));
+      else fprintf(f, "    ");
+    fprintf(f, "%s %d", priv_OP_names[*code], GET2(code, 1+LINK_SIZE));
+    break;
+
+    case OP_BRA:
+    case OP_BRAPOS:
+    case OP_SBRA:
+    case OP_SBRAPOS:
+    case OP_KETRMAX:
+    case OP_KETRMIN:
+    case OP_KETRPOS:
+    case OP_ALT:
+    case OP_KET:
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    case OP_COND:
+    case OP_SCOND:
+    case OP_REVERSE:
+    if (print_lengths) fprintf(f, "%3d ", GET(code, 1));
+      else fprintf(f, "    ");
+    fprintf(f, "%s", priv_OP_names[*code]);
+    break;
+
+    case OP_CLOSE:
+    fprintf(f, "    %s %d", priv_OP_names[*code], GET2(code, 1));
+    break;
+
+    case OP_CREF:
+    case OP_NCREF:
+    fprintf(f, "%3d %s", GET2(code,1), priv_OP_names[*code]);
+    break;
+
+    case OP_RREF:
+    c = GET2(code, 1);
+    if (c == RREF_ANY)
+      fprintf(f, "    Cond recurse any");
+    else
+      fprintf(f, "    Cond recurse %d", c);
+    break;
+
+    case OP_NRREF:
+    c = GET2(code, 1);
+    if (c == RREF_ANY)
+      fprintf(f, "    Cond nrecurse any");
+    else
+      fprintf(f, "    Cond nrecurse %d", c);
+    break;
+
+    case OP_DEF:
+    fprintf(f, "    Cond def");
+    break;
+
+    case OP_STARI:
+    case OP_MINSTARI:
+    case OP_POSSTARI:
+    case OP_PLUSI:
+    case OP_MINPLUSI:
+    case OP_POSPLUSI:
+    case OP_QUERYI:
+    case OP_MINQUERYI:
+    case OP_POSQUERYI:
+    flag = "/i";
+    /* Fall through */
+    case OP_STAR:
+    case OP_MINSTAR:
+    case OP_POSSTAR:
+    case OP_PLUS:
+    case OP_MINPLUS:
+    case OP_POSPLUS:
+    case OP_QUERY:
+    case OP_MINQUERY:
+    case OP_POSQUERY:
+    case OP_TYPESTAR:
+    case OP_TYPEMINSTAR:
+    case OP_TYPEPOSSTAR:
+    case OP_TYPEPLUS:
+    case OP_TYPEMINPLUS:
+    case OP_TYPEPOSPLUS:
+    case OP_TYPEQUERY:
+    case OP_TYPEMINQUERY:
+    case OP_TYPEPOSQUERY:
+    fprintf(f, " %s ", flag);
+    if (*code >= OP_TYPESTAR)
+      {
+      fprintf(f, "%s", priv_OP_names[code[1]]);
+      if (code[1] == OP_PROP || code[1] == OP_NOTPROP)
+        {
+        fprintf(f, " %s ", get_ucpname(code[2], code[3]));
+        extra = 2;
+        }
+      }
+    else extra = print_char(f, code+1, utf);
+    fprintf(f, "%s", priv_OP_names[*code]);
+    break;
+
+    case OP_EXACTI:
+    case OP_UPTOI:
+    case OP_MINUPTOI:
+    case OP_POSUPTOI:
+    flag = "/i";
+    /* Fall through */
+    case OP_EXACT:
+    case OP_UPTO:
+    case OP_MINUPTO:
+    case OP_POSUPTO:
+    fprintf(f, " %s ", flag);
+    extra = print_char(f, code + 1 + IMM2_SIZE, utf);
+    fprintf(f, "{");
+    if (*code != OP_EXACT && *code != OP_EXACTI) fprintf(f, "0,");
+    fprintf(f, "%d}", GET2(code,1));
+    if (*code == OP_MINUPTO || *code == OP_MINUPTOI) fprintf(f, "?");
+      else if (*code == OP_POSUPTO || *code == OP_POSUPTOI) fprintf(f, "+");
+    break;
+
+    case OP_TYPEEXACT:
+    case OP_TYPEUPTO:
+    case OP_TYPEMINUPTO:
+    case OP_TYPEPOSUPTO:
+    fprintf(f, "    %s", priv_OP_names[code[1 + IMM2_SIZE]]);
+    if (code[1 + IMM2_SIZE] == OP_PROP || code[1 + IMM2_SIZE] == OP_NOTPROP)
+      {
+      fprintf(f, " %s ", get_ucpname(code[1 + IMM2_SIZE + 1],
+        code[1 + IMM2_SIZE + 2]));
+      extra = 2;
+      }
+    fprintf(f, "{");
+    if (*code != OP_TYPEEXACT) fprintf(f, "0,");
+    fprintf(f, "%d}", GET2(code,1));
+    if (*code == OP_TYPEMINUPTO) fprintf(f, "?");
+      else if (*code == OP_TYPEPOSUPTO) fprintf(f, "+");
+    break;
+
+    case OP_NOTI:
+    flag = "/i";
+    /* Fall through */
+    case OP_NOT:
+    fprintf(f, " %s [^", flag);
+    extra = print_char(f, code + 1, utf);
+    fprintf(f, "]");
+    break;
+
+    case OP_NOTSTARI:
+    case OP_NOTMINSTARI:
+    case OP_NOTPOSSTARI:
+    case OP_NOTPLUSI:
+    case OP_NOTMINPLUSI:
+    case OP_NOTPOSPLUSI:
+    case OP_NOTQUERYI:
+    case OP_NOTMINQUERYI:
+    case OP_NOTPOSQUERYI:
+    flag = "/i";
+    /* Fall through */
+
+    case OP_NOTSTAR:
+    case OP_NOTMINSTAR:
+    case OP_NOTPOSSTAR:
+    case OP_NOTPLUS:
+    case OP_NOTMINPLUS:
+    case OP_NOTPOSPLUS:
+    case OP_NOTQUERY:
+    case OP_NOTMINQUERY:
+    case OP_NOTPOSQUERY:
+    fprintf(f, " %s [^", flag);
+    extra = print_char(f, code + 1, utf);
+    fprintf(f, "]%s", priv_OP_names[*code]);
+    break;
+
+    case OP_NOTEXACTI:
+    case OP_NOTUPTOI:
+    case OP_NOTMINUPTOI:
+    case OP_NOTPOSUPTOI:
+    flag = "/i";
+    /* Fall through */
+
+    case OP_NOTEXACT:
+    case OP_NOTUPTO:
+    case OP_NOTMINUPTO:
+    case OP_NOTPOSUPTO:
+    fprintf(f, " %s [^", flag);
+    extra = print_char(f, code + 1 + IMM2_SIZE, utf);
+    fprintf(f, "]{");
+    if (*code != OP_NOTEXACT && *code != OP_NOTEXACTI) fprintf(f, "0,");
+    fprintf(f, "%d}", GET2(code,1));
+    if (*code == OP_NOTMINUPTO || *code == OP_NOTMINUPTOI) fprintf(f, "?");
+      else
+    if (*code == OP_NOTPOSUPTO || *code == OP_NOTPOSUPTOI) fprintf(f, "+");
+    break;
+
+    case OP_RECURSE:
+    if (print_lengths) fprintf(f, "%3d ", GET(code, 1));
+      else fprintf(f, "    ");
+    fprintf(f, "%s", priv_OP_names[*code]);
+    break;
+
+    case OP_REFI:
+    flag = "/i";
+    /* Fall through */
+    case OP_REF:
+    fprintf(f, " %s \\%d", flag, GET2(code,1));
+    ccode = code + priv_OP_lengths[*code];
+    goto CLASS_REF_REPEAT;
+
+    case OP_CALLOUT:
+    fprintf(f, "    %s %d %d %d", priv_OP_names[*code], code[1], GET(code,2),
+      GET(code, 2 + LINK_SIZE));
+    break;
+
+    case OP_PROP:
+    case OP_NOTPROP:
+    fprintf(f, "    %s %s", priv_OP_names[*code], get_ucpname(code[1], code[2]));
+    break;
+
+    /* OP_XCLASS can only occur in UTF or PCRE16 modes. However, there's no
+    harm in having this code always here, and it makes it less messy without
+    all those #ifdefs. */
+
+    case OP_CLASS:
+    case OP_NCLASS:
+    case OP_XCLASS:
+      {
+      int i, min, max;
+      BOOL printmap;
+      pcre_uint8 *map;
+
+      fprintf(f, "    [");
+
+      if (*code == OP_XCLASS)
+        {
+        extra = GET(code, 1);
+        ccode = code + LINK_SIZE + 1;
+        printmap = (*ccode & XCL_MAP) != 0;
+        if ((*ccode++ & XCL_NOT) != 0) fprintf(f, "^");
+        }
+      else
+        {
+        printmap = TRUE;
+        ccode = code + 1;
+        }
+
+      /* Print a bit map */
+
+      if (printmap)
+        {
+        map = (pcre_uint8 *)ccode;
+        for (i = 0; i < 256; i++)
+          {
+          if ((map[i/8] & (1 << (i&7))) != 0)
+            {
+            int j;
+            for (j = i+1; j < 256; j++)
+              if ((map[j/8] & (1 << (j&7))) == 0) break;
+            if (i == '-' || i == ']') fprintf(f, "\\");
+            if (PRINTABLE(i)) fprintf(f, "%c", i);
+              else fprintf(f, "\\x%02x", i);
+            if (--j > i)
+              {
+              if (j != i + 1) fprintf(f, "-");
+              if (j == '-' || j == ']') fprintf(f, "\\");
+              if (PRINTABLE(j)) fprintf(f, "%c", j);
+                else fprintf(f, "\\x%02x", j);
+              }
+            i = j;
+            }
+          }
+        ccode += 32 / sizeof(pcre_uchar);
+        }
+
+      /* For an XCLASS there is always some additional data */
+
+      if (*code == OP_XCLASS)
+        {
+        int ch;
+        while ((ch = *ccode++) != XCL_END)
+          {
+          if (ch == XCL_PROP)
+            {
+            int ptype = *ccode++;
+            int pvalue = *ccode++;
+            fprintf(f, "\\p{%s}", get_ucpname(ptype, pvalue));
+            }
+          else if (ch == XCL_NOTPROP)
+            {
+            int ptype = *ccode++;
+            int pvalue = *ccode++;
+            fprintf(f, "\\P{%s}", get_ucpname(ptype, pvalue));
+            }
+          else
+            {
+            ccode += 1 + print_char(f, ccode, utf);
+            if (ch == XCL_RANGE)
+              {
+              fprintf(f, "-");
+              ccode += 1 + print_char(f, ccode, utf);
+              }
+            }
+          }
+        }
+
+      /* Indicate a non-UTF class which was created by negation */
+
+      fprintf(f, "]%s", (*code == OP_NCLASS)? " (neg)" : "");
+
+      /* Handle repeats after a class or a back reference */
+
+      CLASS_REF_REPEAT:
+      switch(*ccode)
+        {
+        case OP_CRSTAR:
+        case OP_CRMINSTAR:
+        case OP_CRPLUS:
+        case OP_CRMINPLUS:
+        case OP_CRQUERY:
+        case OP_CRMINQUERY:
+        fprintf(f, "%s", priv_OP_names[*ccode]);
+        extra += priv_OP_lengths[*ccode];
+        break;
+
+        case OP_CRRANGE:
+        case OP_CRMINRANGE:
+        min = GET2(ccode,1);
+        max = GET2(ccode,1 + IMM2_SIZE);
+        if (max == 0) fprintf(f, "{%d,}", min);
+        else fprintf(f, "{%d,%d}", min, max);
+        if (*ccode == OP_CRMINRANGE) fprintf(f, "?");
+        extra += priv_OP_lengths[*ccode];
+        break;
+
+        /* Do nothing if it's not a repeat; this code stops picky compilers
+        warning about the lack of a default code path. */
+
+        default:
+        break;
+        }
+      }
+    break;
+
+    case OP_MARK:
+    case OP_PRUNE_ARG:
+    case OP_SKIP_ARG:
+    case OP_THEN_ARG:
+    fprintf(f, "    %s ", priv_OP_names[*code]);
+    print_puchar(f, code + 2);
+    extra += code[1];
+    break;
+
+    case OP_THEN:
+    fprintf(f, "    %s", priv_OP_names[*code]);
+    break;
+
+    case OP_CIRCM:
+    case OP_DOLLM:
+    flag = "/m";
+    /* Fall through */
+
+    /* Anything else is just an item with no data, but possibly a flag. */
+
+    default:
+    fprintf(f, " %s %s", flag, priv_OP_names[*code]);
+    break;
+    }
+
+  code += priv_OP_lengths[*code] + extra;
+  fprintf(f, "\n");
+  }
+}
+
+/* End of pcre_printint.src */
diff --git a/8.31/pcre_refcount.c b/8.31/pcre_refcount.c
new file mode 100644
index 0000000..441e4dc
--- /dev/null
+++ b/8.31/pcre_refcount.c
@@ -0,0 +1,89 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains the external function pcre_refcount(), which is an
+auxiliary function that can be used to maintain a reference count in a compiled
+pattern data block. This might be helpful in applications where the block is
+shared by different users. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+*           Maintain reference count             *
+*************************************************/
+
+/* The reference count is a 16-bit field, initialized to zero. It is not
+possible to transfer a non-zero count from one host to a different host that
+has a different byte order - though I can't see why anyone in their right mind
+would ever want to do that!
+
+Arguments:
+  argument_re   points to compiled code
+  adjust        value to add to the count
+
+Returns:        the (possibly updated) count value (a non-negative number), or
+                a negative error number
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre_refcount(pcre *argument_re, int adjust)
+#else
+PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
+pcre16_refcount(pcre16 *argument_re, int adjust)
+#endif
+{
+REAL_PCRE *re = (REAL_PCRE *)argument_re;
+if (re == NULL) return PCRE_ERROR_NULL;
+if (re->magic_number != MAGIC_NUMBER) return PCRE_ERROR_BADMAGIC;
+if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
+re->ref_count = (-adjust > re->ref_count)? 0 :
+                (adjust + re->ref_count > 65535)? 65535 :
+                re->ref_count + adjust;
+return re->ref_count;
+}
+
+/* End of pcre_refcount.c */
diff --git a/8.31/pcre_scanner.h b/8.31/pcre_scanner.h
new file mode 100644
index 0000000..5617e45
--- /dev/null
+++ b/8.31/pcre_scanner.h
@@ -0,0 +1,172 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sanjay Ghemawat
+//
+// Regular-expression based scanner for parsing an input stream.
+//
+// Example 1: parse a sequence of "var = number" entries from input:
+//
+//      Scanner scanner(input);
+//      string var;
+//      int number;
+//      scanner.SetSkipExpression("\\s+"); // Skip any white space we encounter
+//      while (scanner.Consume("(\\w+) = (\\d+)", &var, &number)) {
+//        ...;
+//      }
+
+#ifndef _PCRE_SCANNER_H
+#define _PCRE_SCANNER_H
+
+#include <assert.h>
+#include <string>
+#include <vector>
+
+#include <pcrecpp.h>
+#include <pcre_stringpiece.h>
+
+namespace pcrecpp {
+
+class PCRECPP_EXP_DEFN Scanner {
+ public:
+  Scanner();
+  explicit Scanner(const std::string& input);
+  ~Scanner();
+
+  // Return current line number.  The returned line-number is
+  // one-based.  I.e. it returns 1 + the number of consumed newlines.
+  //
+  // Note: this method may be slow.  It may take time proportional to
+  // the size of the input.
+  int LineNumber() const;
+
+  // Return the byte-offset that the scanner is looking in the
+  // input data;
+  int Offset() const;
+
+  // Return true iff the start of the remaining input matches "re"
+  bool LookingAt(const RE& re) const;
+
+  // Return true iff all of the following are true
+  //    a. the start of the remaining input matches "re",
+  //    b. if any arguments are supplied, matched sub-patterns can be
+  //       parsed and stored into the arguments.
+  // If it returns true, it skips over the matched input and any
+  // following input that matches the "skip" regular expression.
+  bool Consume(const RE& re,
+               const Arg& arg0 = RE::no_arg,
+               const Arg& arg1 = RE::no_arg,
+               const Arg& arg2 = RE::no_arg
+               // TODO: Allow more arguments?
+               );
+
+  // Set the "skip" regular expression.  If after consuming some data,
+  // a prefix of the input matches this RE, it is automatically
+  // skipped.  For example, a programming language scanner would use
+  // a skip RE that matches white space and comments.
+  //
+  //    scanner.SetSkipExpression("\\s+|//.*|/[*](.|\n)*?[*]/");
+  //
+  // Skipping repeats as long as it succeeds.  We used to let people do
+  // this by writing "(...)*" in the regular expression, but that added
+  // up to lots of recursive calls within the pcre library, so now we
+  // control repetition explicitly via the function call API.
+  //
+  // You can pass NULL for "re" if you do not want any data to be skipped.
+  void Skip(const char* re);   // DEPRECATED; does *not* repeat
+  void SetSkipExpression(const char* re);
+
+  // Temporarily pause "skip"ing. This
+  //   Skip("Foo"); code ; DisableSkip(); code; EnableSkip()
+  // is similar to
+  //   Skip("Foo"); code ; Skip(NULL); code ; Skip("Foo");
+  // but avoids creating/deleting new RE objects.
+  void DisableSkip();
+
+  // Reenable previously paused skipping.  Any prefix of the input
+  // that matches the skip pattern is immediately dropped.
+  void EnableSkip();
+
+  /***** Special wrappers around SetSkip() for some common idioms *****/
+
+  // Arranges to skip whitespace, C comments, C++ comments.
+  // The overall RE is a disjunction of the following REs:
+  //    \\s                     whitespace
+  //    //.*\n                  C++ comment
+  //    /[*](.|\n)*?[*]/        C comment (x*? means minimal repetitions of x)
+  // We get repetition via the semantics of SetSkipExpression, not by using *
+  void SkipCXXComments() {
+    SetSkipExpression("\\s|//.*\n|/[*](?:\n|.)*?[*]/");
+  }
+
+  void set_save_comments(bool comments) {
+    save_comments_ = comments;
+  }
+
+  bool save_comments() {
+    return save_comments_;
+  }
+
+  // Append to vector ranges the comments found in the
+  // byte range [start,end] (inclusive) of the input data.
+  // Only comments that were extracted entirely within that
+  // range are returned: no range splitting of atomically-extracted
+  // comments is performed.
+  void GetComments(int start, int end, std::vector<StringPiece> *ranges);
+
+  // Append to vector ranges the comments added
+  // since the last time this was called. This
+  // functionality is provided for efficiency when
+  // interleaving scanning with parsing.
+  void GetNextComments(std::vector<StringPiece> *ranges);
+
+ private:
+  std::string   data_;          // All the input data
+  StringPiece   input_;         // Unprocessed input
+  RE*           skip_;          // If non-NULL, RE for skipping input
+  bool          should_skip_;   // If true, use skip_
+  bool          skip_repeat_;   // If true, repeat skip_ as long as it works
+  bool          save_comments_; // If true, aggregate the skip expression
+
+  // the skipped comments
+  // TODO: later consider requiring that the StringPieces be added
+  // in order by their start position
+  std::vector<StringPiece> *comments_;
+
+  // the offset into comments_ that has been returned by GetNextComments
+  int           comments_offset_;
+
+  // helper function to consume *skip_ and honour
+  // save_comments_
+  void ConsumeSkip();
+};
+
+}   // namespace pcrecpp
+
+#endif /* _PCRE_SCANNER_H */
diff --git a/8.31/pcre_string_utils.c b/8.31/pcre_string_utils.c
new file mode 100644
index 0000000..54a75f6
--- /dev/null
+++ b/8.31/pcre_string_utils.c
@@ -0,0 +1,168 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains an internal function that is used to match an extended
+class. It is used by both pcre_exec() and pcre_def_exec(). */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+#ifndef COMPILE_PCRE8
+
+/*************************************************
+*           Compare string utilities             *
+*************************************************/
+
+/* The following two functions compares two strings. Basically an strcmp
+for non 8 bit characters.
+
+Arguments:
+  str1        first string
+  str2        second string
+
+Returns:      0 if both string are equal (like strcmp), 1 otherwise
+*/
+
+int
+PRIV(strcmp_uc_uc)(const pcre_uchar *str1, const pcre_uchar *str2)
+{
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *str2 != '\0')
+  {
+  c1 = *str1++;
+  c2 = *str2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+int
+PRIV(strcmp_uc_c8)(const pcre_uchar *str1, const char *str2)
+{
+const pcre_uint8 *ustr2 = (pcre_uint8 *)str2;
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *ustr2 != '\0')
+  {
+  c1 = *str1++;
+  c2 = (pcre_uchar)*ustr2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+/* The following two functions compares two, fixed length
+strings. Basically an strncmp for non 8 bit characters.
+
+Arguments:
+  str1        first string
+  str2        second string
+  num         size of the string
+
+Returns:      0 if both string are equal (like strcmp), 1 otherwise
+*/
+
+int
+PRIV(strncmp_uc_uc)(const pcre_uchar *str1, const pcre_uchar *str2, unsigned int num)
+{
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (num-- > 0)
+  {
+  c1 = *str1++;
+  c2 = *str2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+int
+PRIV(strncmp_uc_c8)(const pcre_uchar *str1, const char *str2, unsigned int num)
+{
+const pcre_uint8 *ustr2 = (pcre_uint8 *)str2;
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (num-- > 0)
+  {
+  c1 = *str1++;
+  c2 = (pcre_uchar)*ustr2++;
+  if (c1 != c2)
+    return ((c1 > c2) << 1) - 1;
+  }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+/* The following function returns with the length of
+a zero terminated string. Basically an strlen for non 8 bit characters.
+
+Arguments:
+  str         string
+
+Returns:      length of the string
+*/
+
+unsigned int
+PRIV(strlen_uc)(const pcre_uchar *str)
+{
+unsigned int len = 0;
+while (*str++ != 0)
+  len++;
+return len;
+}
+
+#endif /* COMPILE_PCRE8 */
+
+/* End of pcre_string_utils.c */
diff --git a/8.31/pcre_stringpiece.h b/8.31/pcre_stringpiece.h
new file mode 100644
index 0000000..4ea32f6
--- /dev/null
+++ b/8.31/pcre_stringpiece.h
@@ -0,0 +1,179 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sanjay Ghemawat
+//
+// A string like object that points into another piece of memory.
+// Useful for providing an interface that allows clients to easily
+// pass in either a "const char*" or a "string".
+//
+// Arghh!  I wish C++ literals were automatically of type "string".
+
+#ifndef _PCRE_STRINGPIECE_H
+#define _PCRE_STRINGPIECE_H
+
+#include <cstring>
+#include <string>
+#include <iosfwd>    // for ostream forward-declaration
+
+#if 0
+#define HAVE_TYPE_TRAITS
+#include <type_traits.h>
+#elif 0
+#define HAVE_TYPE_TRAITS
+#include <bits/type_traits.h>
+#endif
+
+#include <pcre.h>
+
+using std::memcmp;
+using std::strlen;
+using std::string;
+
+namespace pcrecpp {
+
+class PCRECPP_EXP_DEFN StringPiece {
+ private:
+  const char*   ptr_;
+  int           length_;
+
+ public:
+  // We provide non-explicit singleton constructors so users can pass
+  // in a "const char*" or a "string" wherever a "StringPiece" is
+  // expected.
+  StringPiece()
+    : ptr_(NULL), length_(0) { }
+  StringPiece(const char* str)
+    : ptr_(str), length_(static_cast<int>(strlen(ptr_))) { }
+  StringPiece(const unsigned char* str)
+    : ptr_(reinterpret_cast<const char*>(str)),
+      length_(static_cast<int>(strlen(ptr_))) { }
+  StringPiece(const string& str)
+    : ptr_(str.data()), length_(static_cast<int>(str.size())) { }
+  StringPiece(const char* offset, int len)
+    : ptr_(offset), length_(len) { }
+
+  // data() may return a pointer to a buffer with embedded NULs, and the
+  // returned buffer may or may not be null terminated.  Therefore it is
+  // typically a mistake to pass data() to a routine that expects a NUL
+  // terminated string.  Use "as_string().c_str()" if you really need to do
+  // this.  Or better yet, change your routine so it does not rely on NUL
+  // termination.
+  const char* data() const { return ptr_; }
+  int size() const { return length_; }
+  bool empty() const { return length_ == 0; }
+
+  void clear() { ptr_ = NULL; length_ = 0; }
+  void set(const char* buffer, int len) { ptr_ = buffer; length_ = len; }
+  void set(const char* str) {
+    ptr_ = str;
+    length_ = static_cast<int>(strlen(str));
+  }
+  void set(const void* buffer, int len) {
+    ptr_ = reinterpret_cast<const char*>(buffer);
+    length_ = len;
+  }
+
+  char operator[](int i) const { return ptr_[i]; }
+
+  void remove_prefix(int n) {
+    ptr_ += n;
+    length_ -= n;
+  }
+
+  void remove_suffix(int n) {
+    length_ -= n;
+  }
+
+  bool operator==(const StringPiece& x) const {
+    return ((length_ == x.length_) &&
+            (memcmp(ptr_, x.ptr_, length_) == 0));
+  }
+  bool operator!=(const StringPiece& x) const {
+    return !(*this == x);
+  }
+
+#define STRINGPIECE_BINARY_PREDICATE(cmp,auxcmp)                             \
+  bool operator cmp (const StringPiece& x) const {                           \
+    int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_); \
+    return ((r auxcmp 0) || ((r == 0) && (length_ cmp x.length_)));          \
+  }
+  STRINGPIECE_BINARY_PREDICATE(<,  <);
+  STRINGPIECE_BINARY_PREDICATE(<=, <);
+  STRINGPIECE_BINARY_PREDICATE(>=, >);
+  STRINGPIECE_BINARY_PREDICATE(>,  >);
+#undef STRINGPIECE_BINARY_PREDICATE
+
+  int compare(const StringPiece& x) const {
+    int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_);
+    if (r == 0) {
+      if (length_ < x.length_) r = -1;
+      else if (length_ > x.length_) r = +1;
+    }
+    return r;
+  }
+
+  string as_string() const {
+    return string(data(), size());
+  }
+
+  void CopyToString(string* target) const {
+    target->assign(ptr_, length_);
+  }
+
+  // Does "this" start with "x"
+  bool starts_with(const StringPiece& x) const {
+    return ((length_ >= x.length_) && (memcmp(ptr_, x.ptr_, x.length_) == 0));
+  }
+};
+
+}   // namespace pcrecpp
+
+// ------------------------------------------------------------------
+// Functions used to create STL containers that use StringPiece
+//  Remember that a StringPiece's lifetime had better be less than
+//  that of the underlying string or char*.  If it is not, then you
+//  cannot safely store a StringPiece into an STL container
+// ------------------------------------------------------------------
+
+#ifdef HAVE_TYPE_TRAITS
+// This makes vector<StringPiece> really fast for some STL implementations
+template<> struct __type_traits<pcrecpp::StringPiece> {
+  typedef __true_type    has_trivial_default_constructor;
+  typedef __true_type    has_trivial_copy_constructor;
+  typedef __true_type    has_trivial_assignment_operator;
+  typedef __true_type    has_trivial_destructor;
+  typedef __true_type    is_POD_type;
+};
+#endif
+
+// allow StringPiece to be logged
+std::ostream& operator<<(std::ostream& o, const pcrecpp::StringPiece& piece);
+
+#endif /* _PCRE_STRINGPIECE_H */
diff --git a/8.31/pcre_stringpiece.h.in b/8.31/pcre_stringpiece.h.in
new file mode 100644
index 0000000..369c10f
--- /dev/null
+++ b/8.31/pcre_stringpiece.h.in
@@ -0,0 +1,179 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sanjay Ghemawat
+//
+// A string like object that points into another piece of memory.
+// Useful for providing an interface that allows clients to easily
+// pass in either a "const char*" or a "string".
+//
+// Arghh!  I wish C++ literals were automatically of type "string".
+
+#ifndef _PCRE_STRINGPIECE_H
+#define _PCRE_STRINGPIECE_H
+
+#include <cstring>
+#include <string>
+#include <iosfwd>    // for ostream forward-declaration
+
+#if @pcre_have_type_traits@
+#define HAVE_TYPE_TRAITS
+#include <type_traits.h>
+#elif @pcre_have_bits_type_traits@
+#define HAVE_TYPE_TRAITS
+#include <bits/type_traits.h>
+#endif
+
+#include <pcre.h>
+
+using std::memcmp;
+using std::strlen;
+using std::string;
+
+namespace pcrecpp {
+
+class PCRECPP_EXP_DEFN StringPiece {
+ private:
+  const char*   ptr_;
+  int           length_;
+
+ public:
+  // We provide non-explicit singleton constructors so users can pass
+  // in a "const char*" or a "string" wherever a "StringPiece" is
+  // expected.
+  StringPiece()
+    : ptr_(NULL), length_(0) { }
+  StringPiece(const char* str)
+    : ptr_(str), length_(static_cast<int>(strlen(ptr_))) { }
+  StringPiece(const unsigned char* str)
+    : ptr_(reinterpret_cast<const char*>(str)),
+      length_(static_cast<int>(strlen(ptr_))) { }
+  StringPiece(const string& str)
+    : ptr_(str.data()), length_(static_cast<int>(str.size())) { }
+  StringPiece(const char* offset, int len)
+    : ptr_(offset), length_(len) { }
+
+  // data() may return a pointer to a buffer with embedded NULs, and the
+  // returned buffer may or may not be null terminated.  Therefore it is
+  // typically a mistake to pass data() to a routine that expects a NUL
+  // terminated string.  Use "as_string().c_str()" if you really need to do
+  // this.  Or better yet, change your routine so it does not rely on NUL
+  // termination.
+  const char* data() const { return ptr_; }
+  int size() const { return length_; }
+  bool empty() const { return length_ == 0; }
+
+  void clear() { ptr_ = NULL; length_ = 0; }
+  void set(const char* buffer, int len) { ptr_ = buffer; length_ = len; }
+  void set(const char* str) {
+    ptr_ = str;
+    length_ = static_cast<int>(strlen(str));
+  }
+  void set(const void* buffer, int len) {
+    ptr_ = reinterpret_cast<const char*>(buffer);
+    length_ = len;
+  }
+
+  char operator[](int i) const { return ptr_[i]; }
+
+  void remove_prefix(int n) {
+    ptr_ += n;
+    length_ -= n;
+  }
+
+  void remove_suffix(int n) {
+    length_ -= n;
+  }
+
+  bool operator==(const StringPiece& x) const {
+    return ((length_ == x.length_) &&
+            (memcmp(ptr_, x.ptr_, length_) == 0));
+  }
+  bool operator!=(const StringPiece& x) const {
+    return !(*this == x);
+  }
+
+#define STRINGPIECE_BINARY_PREDICATE(cmp,auxcmp)                             \
+  bool operator cmp (const StringPiece& x) const {                           \
+    int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_); \
+    return ((r auxcmp 0) || ((r == 0) && (length_ cmp x.length_)));          \
+  }
+  STRINGPIECE_BINARY_PREDICATE(<,  <);
+  STRINGPIECE_BINARY_PREDICATE(<=, <);
+  STRINGPIECE_BINARY_PREDICATE(>=, >);
+  STRINGPIECE_BINARY_PREDICATE(>,  >);
+#undef STRINGPIECE_BINARY_PREDICATE
+
+  int compare(const StringPiece& x) const {
+    int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_);
+    if (r == 0) {
+      if (length_ < x.length_) r = -1;
+      else if (length_ > x.length_) r = +1;
+    }
+    return r;
+  }
+
+  string as_string() const {
+    return string(data(), size());
+  }
+
+  void CopyToString(string* target) const {
+    target->assign(ptr_, length_);
+  }
+
+  // Does "this" start with "x"
+  bool starts_with(const StringPiece& x) const {
+    return ((length_ >= x.length_) && (memcmp(ptr_, x.ptr_, x.length_) == 0));
+  }
+};
+
+}   // namespace pcrecpp
+
+// ------------------------------------------------------------------
+// Functions used to create STL containers that use StringPiece
+//  Remember that a StringPiece's lifetime had better be less than
+//  that of the underlying string or char*.  If it is not, then you
+//  cannot safely store a StringPiece into an STL container
+// ------------------------------------------------------------------
+
+#ifdef HAVE_TYPE_TRAITS
+// This makes vector<StringPiece> really fast for some STL implementations
+template<> struct __type_traits<pcrecpp::StringPiece> {
+  typedef __true_type    has_trivial_default_constructor;
+  typedef __true_type    has_trivial_copy_constructor;
+  typedef __true_type    has_trivial_assignment_operator;
+  typedef __true_type    has_trivial_destructor;
+  typedef __true_type    is_POD_type;
+};
+#endif
+
+// allow StringPiece to be logged
+std::ostream& operator<<(std::ostream& o, const pcrecpp::StringPiece& piece);
+
+#endif /* _PCRE_STRINGPIECE_H */
diff --git a/8.31/pcre_study.c b/8.31/pcre_study.c
new file mode 100644
index 0000000..85cb514
--- /dev/null
+++ b/8.31/pcre_study.c
@@ -0,0 +1,1534 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains the external function pcre_study(), along with local
+supporting functions. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+#define SET_BIT(c) start_bits[c/8] |= (1 << (c&7))
+
+/* Returns from set_start_bits() */
+
+enum { SSB_FAIL, SSB_DONE, SSB_CONTINUE, SSB_UNKNOWN };
+
+
+
+/*************************************************
+*   Find the minimum subject length for a group  *
+*************************************************/
+
+/* Scan a parenthesized group and compute the minimum length of subject that
+is needed to match it. This is a lower bound; it does not mean there is a
+string of that length that matches. In UTF8 mode, the result is in characters
+rather than bytes.
+
+Arguments:
+  code            pointer to start of group (the bracket)
+  startcode       pointer to start of the whole pattern
+  options         the compiling options
+  int             RECURSE depth
+
+Returns:   the minimum length
+           -1 if \C in UTF-8 mode or (*ACCEPT) was encountered
+           -2 internal error (missing capturing bracket)
+           -3 internal error (opcode not listed)
+*/
+
+static int
+find_minlength(const pcre_uchar *code, const pcre_uchar *startcode, int options,
+  int recurse_depth)
+{
+int length = -1;
+/* PCRE_UTF16 has the same value as PCRE_UTF8. */
+BOOL utf = (options & PCRE_UTF8) != 0;
+BOOL had_recurse = FALSE;
+register int branchlength = 0;
+register pcre_uchar *cc = (pcre_uchar *)code + 1 + LINK_SIZE;
+
+if (*code == OP_CBRA || *code == OP_SCBRA ||
+    *code == OP_CBRAPOS || *code == OP_SCBRAPOS) cc += IMM2_SIZE;
+
+/* Scan along the opcodes for this branch. If we get to the end of the
+branch, check the length against that of the other branches. */
+
+for (;;)
+  {
+  int d, min;
+  pcre_uchar *cs, *ce;
+  register int op = *cc;
+
+  switch (op)
+    {
+    case OP_COND:
+    case OP_SCOND:
+
+    /* If there is only one branch in a condition, the implied branch has zero
+    length, so we don't add anything. This covers the DEFINE "condition"
+    automatically. */
+
+    cs = cc + GET(cc, 1);
+    if (*cs != OP_ALT)
+      {
+      cc = cs + 1 + LINK_SIZE;
+      break;
+      }
+
+    /* Otherwise we can fall through and treat it the same as any other
+    subpattern. */
+
+    case OP_CBRA:
+    case OP_SCBRA:
+    case OP_BRA:
+    case OP_SBRA:
+    case OP_CBRAPOS:
+    case OP_SCBRAPOS:
+    case OP_BRAPOS:
+    case OP_SBRAPOS:
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    d = find_minlength(cc, startcode, options, recurse_depth);
+    if (d < 0) return d;
+    branchlength += d;
+    do cc += GET(cc, 1); while (*cc == OP_ALT);
+    cc += 1 + LINK_SIZE;
+    break;
+
+    /* ACCEPT makes things far too complicated; we have to give up. */
+
+    case OP_ACCEPT:
+    case OP_ASSERT_ACCEPT:
+    return -1;
+
+    /* Reached end of a branch; if it's a ket it is the end of a nested
+    call. If it's ALT it is an alternation in a nested call. If it is END it's
+    the end of the outer call. All can be handled by the same code. If an
+    ACCEPT was previously encountered, use the length that was in force at that
+    time, and pass back the shortest ACCEPT length. */
+
+    case OP_ALT:
+    case OP_KET:
+    case OP_KETRMAX:
+    case OP_KETRMIN:
+    case OP_KETRPOS:
+    case OP_END:
+    if (length < 0 || (!had_recurse && branchlength < length))
+      length = branchlength;
+    if (op != OP_ALT) return length;
+    cc += 1 + LINK_SIZE;
+    branchlength = 0;
+    had_recurse = FALSE;
+    break;
+
+    /* Skip over assertive subpatterns */
+
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    do cc += GET(cc, 1); while (*cc == OP_ALT);
+    /* Fall through */
+
+    /* Skip over things that don't match chars */
+
+    case OP_REVERSE:
+    case OP_CREF:
+    case OP_NCREF:
+    case OP_RREF:
+    case OP_NRREF:
+    case OP_DEF:
+    case OP_CALLOUT:
+    case OP_SOD:
+    case OP_SOM:
+    case OP_EOD:
+    case OP_EODN:
+    case OP_CIRC:
+    case OP_CIRCM:
+    case OP_DOLL:
+    case OP_DOLLM:
+    case OP_NOT_WORD_BOUNDARY:
+    case OP_WORD_BOUNDARY:
+    cc += PRIV(OP_lengths)[*cc];
+    break;
+
+    /* Skip over a subpattern that has a {0} or {0,x} quantifier */
+
+    case OP_BRAZERO:
+    case OP_BRAMINZERO:
+    case OP_BRAPOSZERO:
+    case OP_SKIPZERO:
+    cc += PRIV(OP_lengths)[*cc];
+    do cc += GET(cc, 1); while (*cc == OP_ALT);
+    cc += 1 + LINK_SIZE;
+    break;
+
+    /* Handle literal characters and + repetitions */
+
+    case OP_CHAR:
+    case OP_CHARI:
+    case OP_NOT:
+    case OP_NOTI:
+    case OP_PLUS:
+    case OP_PLUSI:
+    case OP_MINPLUS:
+    case OP_MINPLUSI:
+    case OP_POSPLUS:
+    case OP_POSPLUSI:
+    case OP_NOTPLUS:
+    case OP_NOTPLUSI:
+    case OP_NOTMINPLUS:
+    case OP_NOTMINPLUSI:
+    case OP_NOTPOSPLUS:
+    case OP_NOTPOSPLUSI:
+    branchlength++;
+    cc += 2;
+#ifdef SUPPORT_UTF
+    if (utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+    break;
+
+    case OP_TYPEPLUS:
+    case OP_TYPEMINPLUS:
+    case OP_TYPEPOSPLUS:
+    branchlength++;
+    cc += (cc[1] == OP_PROP || cc[1] == OP_NOTPROP)? 4 : 2;
+    break;
+
+    /* Handle exact repetitions. The count is already in characters, but we
+    need to skip over a multibyte character in UTF8 mode.  */
+
+    case OP_EXACT:
+    case OP_EXACTI:
+    case OP_NOTEXACT:
+    case OP_NOTEXACTI:
+    branchlength += GET2(cc,1);
+    cc += 2 + IMM2_SIZE;
+#ifdef SUPPORT_UTF
+    if (utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+    break;
+
+    case OP_TYPEEXACT:
+    branchlength += GET2(cc,1);
+    cc += 2 + IMM2_SIZE + ((cc[1 + IMM2_SIZE] == OP_PROP
+      || cc[1 + IMM2_SIZE] == OP_NOTPROP)? 2 : 0);
+    break;
+
+    /* Handle single-char non-literal matchers */
+
+    case OP_PROP:
+    case OP_NOTPROP:
+    cc += 2;
+    /* Fall through */
+
+    case OP_NOT_DIGIT:
+    case OP_DIGIT:
+    case OP_NOT_WHITESPACE:
+    case OP_WHITESPACE:
+    case OP_NOT_WORDCHAR:
+    case OP_WORDCHAR:
+    case OP_ANY:
+    case OP_ALLANY:
+    case OP_EXTUNI:
+    case OP_HSPACE:
+    case OP_NOT_HSPACE:
+    case OP_VSPACE:
+    case OP_NOT_VSPACE:
+    branchlength++;
+    cc++;
+    break;
+
+    /* "Any newline" might match two characters, but it also might match just
+    one. */
+
+    case OP_ANYNL:
+    branchlength += 1;
+    cc++;
+    break;
+
+    /* The single-byte matcher means we can't proceed in UTF-8 mode. (In
+    non-UTF-8 mode \C will actually be turned into OP_ALLANY, so won't ever
+    appear, but leave the code, just in case.) */
+
+    case OP_ANYBYTE:
+#ifdef SUPPORT_UTF
+    if (utf) return -1;
+#endif
+    branchlength++;
+    cc++;
+    break;
+
+    /* For repeated character types, we have to test for \p and \P, which have
+    an extra two bytes of parameters. */
+
+    case OP_TYPESTAR:
+    case OP_TYPEMINSTAR:
+    case OP_TYPEQUERY:
+    case OP_TYPEMINQUERY:
+    case OP_TYPEPOSSTAR:
+    case OP_TYPEPOSQUERY:
+    if (cc[1] == OP_PROP || cc[1] == OP_NOTPROP) cc += 2;
+    cc += PRIV(OP_lengths)[op];
+    break;
+
+    case OP_TYPEUPTO:
+    case OP_TYPEMINUPTO:
+    case OP_TYPEPOSUPTO:
+    if (cc[1 + IMM2_SIZE] == OP_PROP
+      || cc[1 + IMM2_SIZE] == OP_NOTPROP) cc += 2;
+    cc += PRIV(OP_lengths)[op];
+    break;
+
+    /* Check a class for variable quantification */
+
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+    case OP_XCLASS:
+    cc += GET(cc, 1) - PRIV(OP_lengths)[OP_CLASS];
+    /* Fall through */
+#endif
+
+    case OP_CLASS:
+    case OP_NCLASS:
+    cc += PRIV(OP_lengths)[OP_CLASS];
+
+    switch (*cc)
+      {
+      case OP_CRPLUS:
+      case OP_CRMINPLUS:
+      branchlength++;
+      /* Fall through */
+
+      case OP_CRSTAR:
+      case OP_CRMINSTAR:
+      case OP_CRQUERY:
+      case OP_CRMINQUERY:
+      cc++;
+      break;
+
+      case OP_CRRANGE:
+      case OP_CRMINRANGE:
+      branchlength += GET2(cc,1);
+      cc += 1 + 2 * IMM2_SIZE;
+      break;
+
+      default:
+      branchlength++;
+      break;
+      }
+    break;
+
+    /* Backreferences and subroutine calls are treated in the same way: we find
+    the minimum length for the subpattern. A recursion, however, causes an
+    a flag to be set that causes the length of this branch to be ignored. The
+    logic is that a recursion can only make sense if there is another
+    alternation that stops the recursing. That will provide the minimum length
+    (when no recursion happens). A backreference within the group that it is
+    referencing behaves in the same way.
+
+    If PCRE_JAVASCRIPT_COMPAT is set, a backreference to an unset bracket
+    matches an empty string (by default it causes a matching failure), so in
+    that case we must set the minimum length to zero. */
+
+    case OP_REF:
+    case OP_REFI:
+    if ((options & PCRE_JAVASCRIPT_COMPAT) == 0)
+      {
+      ce = cs = (pcre_uchar *)PRIV(find_bracket)(startcode, utf, GET2(cc, 1));
+      if (cs == NULL) return -2;
+      do ce += GET(ce, 1); while (*ce == OP_ALT);
+      if (cc > cs && cc < ce)
+        {
+        d = 0;
+        had_recurse = TRUE;
+        }
+      else
+        {
+        d = find_minlength(cs, startcode, options, recurse_depth);
+        }
+      }
+    else d = 0;
+    cc += 1 + IMM2_SIZE;
+
+    /* Handle repeated back references */
+
+    switch (*cc)
+      {
+      case OP_CRSTAR:
+      case OP_CRMINSTAR:
+      case OP_CRQUERY:
+      case OP_CRMINQUERY:
+      min = 0;
+      cc++;
+      break;
+
+      case OP_CRPLUS:
+      case OP_CRMINPLUS:
+      min = 1;
+      cc++;
+      break;
+
+      case OP_CRRANGE:
+      case OP_CRMINRANGE:
+      min = GET2(cc, 1);
+      cc += 1 + 2 * IMM2_SIZE;
+      break;
+
+      default:
+      min = 1;
+      break;
+      }
+
+    branchlength += min * d;
+    break;
+
+    /* We can easily detect direct recursion, but not mutual recursion. This is
+    caught by a recursion depth count. */
+
+    case OP_RECURSE:
+    cs = ce = (pcre_uchar *)startcode + GET(cc, 1);
+    do ce += GET(ce, 1); while (*ce == OP_ALT);
+    if ((cc > cs && cc < ce) || recurse_depth > 10)
+      had_recurse = TRUE;
+    else
+      {
+      branchlength += find_minlength(cs, startcode, options, recurse_depth + 1);
+      }
+    cc += 1 + LINK_SIZE;
+    break;
+
+    /* Anything else does not or need not match a character. We can get the
+    item's length from the table, but for those that can match zero occurrences
+    of a character, we must take special action for UTF-8 characters. As it
+    happens, the "NOT" versions of these opcodes are used at present only for
+    ASCII characters, so they could be omitted from this list. However, in
+    future that may change, so we include them here so as not to leave a
+    gotcha for a future maintainer. */
+
+    case OP_UPTO:
+    case OP_UPTOI:
+    case OP_NOTUPTO:
+    case OP_NOTUPTOI:
+    case OP_MINUPTO:
+    case OP_MINUPTOI:
+    case OP_NOTMINUPTO:
+    case OP_NOTMINUPTOI:
+    case OP_POSUPTO:
+    case OP_POSUPTOI:
+    case OP_NOTPOSUPTO:
+    case OP_NOTPOSUPTOI:
+
+    case OP_STAR:
+    case OP_STARI:
+    case OP_NOTSTAR:
+    case OP_NOTSTARI:
+    case OP_MINSTAR:
+    case OP_MINSTARI:
+    case OP_NOTMINSTAR:
+    case OP_NOTMINSTARI:
+    case OP_POSSTAR:
+    case OP_POSSTARI:
+    case OP_NOTPOSSTAR:
+    case OP_NOTPOSSTARI:
+
+    case OP_QUERY:
+    case OP_QUERYI:
+    case OP_NOTQUERY:
+    case OP_NOTQUERYI:
+    case OP_MINQUERY:
+    case OP_MINQUERYI:
+    case OP_NOTMINQUERY:
+    case OP_NOTMINQUERYI:
+    case OP_POSQUERY:
+    case OP_POSQUERYI:
+    case OP_NOTPOSQUERY:
+    case OP_NOTPOSQUERYI:
+
+    cc += PRIV(OP_lengths)[op];
+#ifdef SUPPORT_UTF
+    if (utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+#endif
+    break;
+
+    /* Skip these, but we need to add in the name length. */
+
+    case OP_MARK:
+    case OP_PRUNE_ARG:
+    case OP_SKIP_ARG:
+    case OP_THEN_ARG:
+    cc += PRIV(OP_lengths)[op] + cc[1];
+    break;
+
+    /* The remaining opcodes are just skipped over. */
+
+    case OP_CLOSE:
+    case OP_COMMIT:
+    case OP_FAIL:
+    case OP_PRUNE:
+    case OP_SET_SOM:
+    case OP_SKIP:
+    case OP_THEN:
+    cc += PRIV(OP_lengths)[op];
+    break;
+
+    /* This should not occur: we list all opcodes explicitly so that when
+    new ones get added they are properly considered. */
+
+    default:
+    return -3;
+    }
+  }
+/* Control never gets here */
+}
+
+
+
+/*************************************************
+*      Set a bit and maybe its alternate case    *
+*************************************************/
+
+/* Given a character, set its first byte's bit in the table, and also the
+corresponding bit for the other version of a letter if we are caseless. In
+UTF-8 mode, for characters greater than 127, we can only do the caseless thing
+when Unicode property support is available.
+
+Arguments:
+  start_bits    points to the bit map
+  p             points to the character
+  caseless      the caseless flag
+  cd            the block with char table pointers
+  utf           TRUE for UTF-8 / UTF-16 mode
+
+Returns:        pointer after the character
+*/
+
+static const pcre_uchar *
+set_table_bit(pcre_uint8 *start_bits, const pcre_uchar *p, BOOL caseless,
+  compile_data *cd, BOOL utf)
+{
+unsigned int c = *p;
+
+#ifdef COMPILE_PCRE8
+SET_BIT(c);
+
+#ifdef SUPPORT_UTF
+if (utf && c > 127)
+  {
+  GETCHARINC(c, p);
+#ifdef SUPPORT_UCP
+  if (caseless)
+    {
+    pcre_uchar buff[6];
+    c = UCD_OTHERCASE(c);
+    (void)PRIV(ord2utf)(c, buff);
+    SET_BIT(buff[0]);
+    }
+#endif
+  return p;
+  }
+#endif
+
+/* Not UTF-8 mode, or character is less than 127. */
+
+if (caseless && (cd->ctypes[c] & ctype_letter) != 0) SET_BIT(cd->fcc[c]);
+return p + 1;
+#endif
+
+#ifdef COMPILE_PCRE16
+if (c > 0xff)
+  {
+  c = 0xff;
+  caseless = FALSE;
+  }
+SET_BIT(c);
+
+#ifdef SUPPORT_UTF
+if (utf && c > 127)
+  {
+  GETCHARINC(c, p);
+#ifdef SUPPORT_UCP
+  if (caseless)
+    {
+    c = UCD_OTHERCASE(c);
+    if (c > 0xff)
+      c = 0xff;
+    SET_BIT(c);
+    }
+#endif
+  return p;
+  }
+#endif
+
+if (caseless && (cd->ctypes[c] & ctype_letter) != 0) SET_BIT(cd->fcc[c]);
+return p + 1;
+#endif
+}
+
+
+
+/*************************************************
+*     Set bits for a positive character type     *
+*************************************************/
+
+/* This function sets starting bits for a character type. In UTF-8 mode, we can
+only do a direct setting for bytes less than 128, as otherwise there can be
+confusion with bytes in the middle of UTF-8 characters. In a "traditional"
+environment, the tables will only recognize ASCII characters anyway, but in at
+least one Windows environment, some higher bytes bits were set in the tables.
+So we deal with that case by considering the UTF-8 encoding.
+
+Arguments:
+  start_bits     the starting bitmap
+  cbit type      the type of character wanted
+  table_limit    32 for non-UTF-8; 16 for UTF-8
+  cd             the block with char table pointers
+
+Returns:         nothing
+*/
+
+static void
+set_type_bits(pcre_uint8 *start_bits, int cbit_type, int table_limit,
+  compile_data *cd)
+{
+register int c;
+for (c = 0; c < table_limit; c++) start_bits[c] |= cd->cbits[c+cbit_type];
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+if (table_limit == 32) return;
+for (c = 128; c < 256; c++)
+  {
+  if ((cd->cbits[c/8] & (1 << (c&7))) != 0)
+    {
+    pcre_uchar buff[6];
+    (void)PRIV(ord2utf)(c, buff);
+    SET_BIT(buff[0]);
+    }
+  }
+#endif
+}
+
+
+/*************************************************
+*     Set bits for a negative character type     *
+*************************************************/
+
+/* This function sets starting bits for a negative character type such as \D.
+In UTF-8 mode, we can only do a direct setting for bytes less than 128, as
+otherwise there can be confusion with bytes in the middle of UTF-8 characters.
+Unlike in the positive case, where we can set appropriate starting bits for
+specific high-valued UTF-8 characters, in this case we have to set the bits for
+all high-valued characters. The lowest is 0xc2, but we overkill by starting at
+0xc0 (192) for simplicity.
+
+Arguments:
+  start_bits     the starting bitmap
+  cbit type      the type of character wanted
+  table_limit    32 for non-UTF-8; 16 for UTF-8
+  cd             the block with char table pointers
+
+Returns:         nothing
+*/
+
+static void
+set_nottype_bits(pcre_uint8 *start_bits, int cbit_type, int table_limit,
+  compile_data *cd)
+{
+register int c;
+for (c = 0; c < table_limit; c++) start_bits[c] |= ~cd->cbits[c+cbit_type];
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+if (table_limit != 32) for (c = 24; c < 32; c++) start_bits[c] = 0xff;
+#endif
+}
+
+
+
+/*************************************************
+*          Create bitmap of starting bytes       *
+*************************************************/
+
+/* This function scans a compiled unanchored expression recursively and
+attempts to build a bitmap of the set of possible starting bytes. As time goes
+by, we may be able to get more clever at doing this. The SSB_CONTINUE return is
+useful for parenthesized groups in patterns such as (a*)b where the group
+provides some optional starting bytes but scanning must continue at the outer
+level to find at least one mandatory byte. At the outermost level, this
+function fails unless the result is SSB_DONE.
+
+Arguments:
+  code         points to an expression
+  start_bits   points to a 32-byte table, initialized to 0
+  utf          TRUE if in UTF-8 / UTF-16 mode
+  cd           the block with char table pointers
+
+Returns:       SSB_FAIL     => Failed to find any starting bytes
+               SSB_DONE     => Found mandatory starting bytes
+               SSB_CONTINUE => Found optional starting bytes
+               SSB_UNKNOWN  => Hit an unrecognized opcode
+*/
+
+static int
+set_start_bits(const pcre_uchar *code, pcre_uint8 *start_bits, BOOL utf,
+  compile_data *cd)
+{
+register int c;
+int yield = SSB_DONE;
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+int table_limit = utf? 16:32;
+#else
+int table_limit = 32;
+#endif
+
+#if 0
+/* ========================================================================= */
+/* The following comment and code was inserted in January 1999. In May 2006,
+when it was observed to cause compiler warnings about unused values, I took it
+out again. If anybody is still using OS/2, they will have to put it back
+manually. */
+
+/* This next statement and the later reference to dummy are here in order to
+trick the optimizer of the IBM C compiler for OS/2 into generating correct
+code. Apparently IBM isn't going to fix the problem, and we would rather not
+disable optimization (in this module it actually makes a big difference, and
+the pcre module can use all the optimization it can get). */
+
+volatile int dummy;
+/* ========================================================================= */
+#endif
+
+do
+  {
+  BOOL try_next = TRUE;
+  const pcre_uchar *tcode = code + 1 + LINK_SIZE;
+
+  if (*code == OP_CBRA || *code == OP_SCBRA ||
+      *code == OP_CBRAPOS || *code == OP_SCBRAPOS) tcode += IMM2_SIZE;
+
+  while (try_next)    /* Loop for items in this branch */
+    {
+    int rc;
+
+    switch(*tcode)
+      {
+      /* If we reach something we don't understand, it means a new opcode has
+      been created that hasn't been added to this code. Hopefully this problem
+      will be discovered during testing. */
+
+      default:
+      return SSB_UNKNOWN;
+
+      /* Fail for a valid opcode that implies no starting bits. */
+
+      case OP_ACCEPT:
+      case OP_ASSERT_ACCEPT:
+      case OP_ALLANY:
+      case OP_ANY:
+      case OP_ANYBYTE:
+      case OP_CIRC:
+      case OP_CIRCM:
+      case OP_CLOSE:
+      case OP_COMMIT:
+      case OP_COND:
+      case OP_CREF:
+      case OP_DEF:
+      case OP_DOLL:
+      case OP_DOLLM:
+      case OP_END:
+      case OP_EOD:
+      case OP_EODN:
+      case OP_EXTUNI:
+      case OP_FAIL:
+      case OP_MARK:
+      case OP_NCREF:
+      case OP_NOT:
+      case OP_NOTEXACT:
+      case OP_NOTEXACTI:
+      case OP_NOTI:
+      case OP_NOTMINPLUS:
+      case OP_NOTMINPLUSI:
+      case OP_NOTMINQUERY:
+      case OP_NOTMINQUERYI:
+      case OP_NOTMINSTAR:
+      case OP_NOTMINSTARI:
+      case OP_NOTMINUPTO:
+      case OP_NOTMINUPTOI:
+      case OP_NOTPLUS:
+      case OP_NOTPLUSI:
+      case OP_NOTPOSPLUS:
+      case OP_NOTPOSPLUSI:
+      case OP_NOTPOSQUERY:
+      case OP_NOTPOSQUERYI:
+      case OP_NOTPOSSTAR:
+      case OP_NOTPOSSTARI:
+      case OP_NOTPOSUPTO:
+      case OP_NOTPOSUPTOI:
+      case OP_NOTPROP:
+      case OP_NOTQUERY:
+      case OP_NOTQUERYI:
+      case OP_NOTSTAR:
+      case OP_NOTSTARI:
+      case OP_NOTUPTO:
+      case OP_NOTUPTOI:
+      case OP_NOT_HSPACE:
+      case OP_NOT_VSPACE:
+      case OP_NRREF:
+      case OP_PROP:
+      case OP_PRUNE:
+      case OP_PRUNE_ARG:
+      case OP_RECURSE:
+      case OP_REF:
+      case OP_REFI:
+      case OP_REVERSE:
+      case OP_RREF:
+      case OP_SCOND:
+      case OP_SET_SOM:
+      case OP_SKIP:
+      case OP_SKIP_ARG:
+      case OP_SOD:
+      case OP_SOM:
+      case OP_THEN:
+      case OP_THEN_ARG:
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+      case OP_XCLASS:
+#endif
+      return SSB_FAIL;
+
+      /* We can ignore word boundary tests. */
+
+      case OP_WORD_BOUNDARY:
+      case OP_NOT_WORD_BOUNDARY:
+      tcode++;
+      break;
+
+      /* If we hit a bracket or a positive lookahead assertion, recurse to set
+      bits from within the subpattern. If it can't find anything, we have to
+      give up. If it finds some mandatory character(s), we are done for this
+      branch. Otherwise, carry on scanning after the subpattern. */
+
+      case OP_BRA:
+      case OP_SBRA:
+      case OP_CBRA:
+      case OP_SCBRA:
+      case OP_BRAPOS:
+      case OP_SBRAPOS:
+      case OP_CBRAPOS:
+      case OP_SCBRAPOS:
+      case OP_ONCE:
+      case OP_ONCE_NC:
+      case OP_ASSERT:
+      rc = set_start_bits(tcode, start_bits, utf, cd);
+      if (rc == SSB_FAIL || rc == SSB_UNKNOWN) return rc;
+      if (rc == SSB_DONE) try_next = FALSE; else
+        {
+        do tcode += GET(tcode, 1); while (*tcode == OP_ALT);
+        tcode += 1 + LINK_SIZE;
+        }
+      break;
+
+      /* If we hit ALT or KET, it means we haven't found anything mandatory in
+      this branch, though we might have found something optional. For ALT, we
+      continue with the next alternative, but we have to arrange that the final
+      result from subpattern is SSB_CONTINUE rather than SSB_DONE. For KET,
+      return SSB_CONTINUE: if this is the top level, that indicates failure,
+      but after a nested subpattern, it causes scanning to continue. */
+
+      case OP_ALT:
+      yield = SSB_CONTINUE;
+      try_next = FALSE;
+      break;
+
+      case OP_KET:
+      case OP_KETRMAX:
+      case OP_KETRMIN:
+      case OP_KETRPOS:
+      return SSB_CONTINUE;
+
+      /* Skip over callout */
+
+      case OP_CALLOUT:
+      tcode += 2 + 2*LINK_SIZE;
+      break;
+
+      /* Skip over lookbehind and negative lookahead assertions */
+
+      case OP_ASSERT_NOT:
+      case OP_ASSERTBACK:
+      case OP_ASSERTBACK_NOT:
+      do tcode += GET(tcode, 1); while (*tcode == OP_ALT);
+      tcode += 1 + LINK_SIZE;
+      break;
+
+      /* BRAZERO does the bracket, but carries on. */
+
+      case OP_BRAZERO:
+      case OP_BRAMINZERO:
+      case OP_BRAPOSZERO:
+      rc = set_start_bits(++tcode, start_bits, utf, cd);
+      if (rc == SSB_FAIL || rc == SSB_UNKNOWN) return rc;
+/* =========================================================================
+      See the comment at the head of this function concerning the next line,
+      which was an old fudge for the benefit of OS/2.
+      dummy = 1;
+  ========================================================================= */
+      do tcode += GET(tcode,1); while (*tcode == OP_ALT);
+      tcode += 1 + LINK_SIZE;
+      break;
+
+      /* SKIPZERO skips the bracket. */
+
+      case OP_SKIPZERO:
+      tcode++;
+      do tcode += GET(tcode,1); while (*tcode == OP_ALT);
+      tcode += 1 + LINK_SIZE;
+      break;
+
+      /* Single-char * or ? sets the bit and tries the next item */
+
+      case OP_STAR:
+      case OP_MINSTAR:
+      case OP_POSSTAR:
+      case OP_QUERY:
+      case OP_MINQUERY:
+      case OP_POSQUERY:
+      tcode = set_table_bit(start_bits, tcode + 1, FALSE, cd, utf);
+      break;
+
+      case OP_STARI:
+      case OP_MINSTARI:
+      case OP_POSSTARI:
+      case OP_QUERYI:
+      case OP_MINQUERYI:
+      case OP_POSQUERYI:
+      tcode = set_table_bit(start_bits, tcode + 1, TRUE, cd, utf);
+      break;
+
+      /* Single-char upto sets the bit and tries the next */
+
+      case OP_UPTO:
+      case OP_MINUPTO:
+      case OP_POSUPTO:
+      tcode = set_table_bit(start_bits, tcode + 1 + IMM2_SIZE, FALSE, cd, utf);
+      break;
+
+      case OP_UPTOI:
+      case OP_MINUPTOI:
+      case OP_POSUPTOI:
+      tcode = set_table_bit(start_bits, tcode + 1 + IMM2_SIZE, TRUE, cd, utf);
+      break;
+
+      /* At least one single char sets the bit and stops */
+
+      case OP_EXACT:
+      tcode += IMM2_SIZE;
+      /* Fall through */
+      case OP_CHAR:
+      case OP_PLUS:
+      case OP_MINPLUS:
+      case OP_POSPLUS:
+      (void)set_table_bit(start_bits, tcode + 1, FALSE, cd, utf);
+      try_next = FALSE;
+      break;
+
+      case OP_EXACTI:
+      tcode += IMM2_SIZE;
+      /* Fall through */
+      case OP_CHARI:
+      case OP_PLUSI:
+      case OP_MINPLUSI:
+      case OP_POSPLUSI:
+      (void)set_table_bit(start_bits, tcode + 1, TRUE, cd, utf);
+      try_next = FALSE;
+      break;
+
+      /* Special spacing and line-terminating items. These recognize specific
+      lists of characters. The difference between VSPACE and ANYNL is that the
+      latter can match the two-character CRLF sequence, but that is not
+      relevant for finding the first character, so their code here is
+      identical. */
+
+      case OP_HSPACE:
+      SET_BIT(0x09);
+      SET_BIT(0x20);
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+#ifdef COMPILE_PCRE8
+        SET_BIT(0xC2);  /* For U+00A0 */
+        SET_BIT(0xE1);  /* For U+1680, U+180E */
+        SET_BIT(0xE2);  /* For U+2000 - U+200A, U+202F, U+205F */
+        SET_BIT(0xE3);  /* For U+3000 */
+#endif
+#ifdef COMPILE_PCRE16
+        SET_BIT(0xA0);
+        SET_BIT(0xFF);  /* For characters > 255 */
+#endif
+        }
+      else
+#endif /* SUPPORT_UTF */
+        {
+        SET_BIT(0xA0);
+#ifdef COMPILE_PCRE16
+        SET_BIT(0xFF);  /* For characters > 255 */
+#endif
+        }
+      try_next = FALSE;
+      break;
+
+      case OP_ANYNL:
+      case OP_VSPACE:
+      SET_BIT(0x0A);
+      SET_BIT(0x0B);
+      SET_BIT(0x0C);
+      SET_BIT(0x0D);
+#ifdef SUPPORT_UTF
+      if (utf)
+        {
+#ifdef COMPILE_PCRE8
+        SET_BIT(0xC2);  /* For U+0085 */
+        SET_BIT(0xE2);  /* For U+2028, U+2029 */
+#endif
+#ifdef COMPILE_PCRE16
+        SET_BIT(0x85);
+        SET_BIT(0xFF);  /* For characters > 255 */
+#endif
+        }
+      else
+#endif /* SUPPORT_UTF */
+        {
+        SET_BIT(0x85);
+#ifdef COMPILE_PCRE16
+        SET_BIT(0xFF);  /* For characters > 255 */
+#endif
+        }
+      try_next = FALSE;
+      break;
+
+      /* Single character types set the bits and stop. Note that if PCRE_UCP
+      is set, we do not see these op codes because \d etc are converted to
+      properties. Therefore, these apply in the case when only characters less
+      than 256 are recognized to match the types. */
+
+      case OP_NOT_DIGIT:
+      set_nottype_bits(start_bits, cbit_digit, table_limit, cd);
+      try_next = FALSE;
+      break;
+
+      case OP_DIGIT:
+      set_type_bits(start_bits, cbit_digit, table_limit, cd);
+      try_next = FALSE;
+      break;
+
+      /* The cbit_space table has vertical tab as whitespace; we have to
+      ensure it is set as not whitespace. */
+
+      case OP_NOT_WHITESPACE:
+      set_nottype_bits(start_bits, cbit_space, table_limit, cd);
+      start_bits[1] |= 0x08;
+      try_next = FALSE;
+      break;
+
+      /* The cbit_space table has vertical tab as whitespace; we have to
+      not set it from the table. */
+
+      case OP_WHITESPACE:
+      c = start_bits[1];    /* Save in case it was already set */
+      set_type_bits(start_bits, cbit_space, table_limit, cd);
+      start_bits[1] = (start_bits[1] & ~0x08) | c;
+      try_next = FALSE;
+      break;
+
+      case OP_NOT_WORDCHAR:
+      set_nottype_bits(start_bits, cbit_word, table_limit, cd);
+      try_next = FALSE;
+      break;
+
+      case OP_WORDCHAR:
+      set_type_bits(start_bits, cbit_word, table_limit, cd);
+      try_next = FALSE;
+      break;
+
+      /* One or more character type fudges the pointer and restarts, knowing
+      it will hit a single character type and stop there. */
+
+      case OP_TYPEPLUS:
+      case OP_TYPEMINPLUS:
+      case OP_TYPEPOSPLUS:
+      tcode++;
+      break;
+
+      case OP_TYPEEXACT:
+      tcode += 1 + IMM2_SIZE;
+      break;
+
+      /* Zero or more repeats of character types set the bits and then
+      try again. */
+
+      case OP_TYPEUPTO:
+      case OP_TYPEMINUPTO:
+      case OP_TYPEPOSUPTO:
+      tcode += IMM2_SIZE;  /* Fall through */
+
+      case OP_TYPESTAR:
+      case OP_TYPEMINSTAR:
+      case OP_TYPEPOSSTAR:
+      case OP_TYPEQUERY:
+      case OP_TYPEMINQUERY:
+      case OP_TYPEPOSQUERY:
+      switch(tcode[1])
+        {
+        default:
+        case OP_ANY:
+        case OP_ALLANY:
+        return SSB_FAIL;
+
+        case OP_HSPACE:
+        SET_BIT(0x09);
+        SET_BIT(0x20);
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+#ifdef COMPILE_PCRE8
+          SET_BIT(0xC2);  /* For U+00A0 */
+          SET_BIT(0xE1);  /* For U+1680, U+180E */
+          SET_BIT(0xE2);  /* For U+2000 - U+200A, U+202F, U+205F */
+          SET_BIT(0xE3);  /* For U+3000 */
+#endif
+#ifdef COMPILE_PCRE16
+          SET_BIT(0xA0);
+          SET_BIT(0xFF);  /* For characters > 255 */
+#endif
+          }
+        else
+#endif /* SUPPORT_UTF */
+          SET_BIT(0xA0);
+        break;
+
+        case OP_ANYNL:
+        case OP_VSPACE:
+        SET_BIT(0x0A);
+        SET_BIT(0x0B);
+        SET_BIT(0x0C);
+        SET_BIT(0x0D);
+#ifdef SUPPORT_UTF
+        if (utf)
+          {
+#ifdef COMPILE_PCRE8
+          SET_BIT(0xC2);  /* For U+0085 */
+          SET_BIT(0xE2);  /* For U+2028, U+2029 */
+#endif
+#ifdef COMPILE_PCRE16
+          SET_BIT(0x85);
+          SET_BIT(0xFF);  /* For characters > 255 */
+#endif
+          }
+        else
+#endif /* SUPPORT_UTF */
+          SET_BIT(0x85);
+        break;
+
+        case OP_NOT_DIGIT:
+        set_nottype_bits(start_bits, cbit_digit, table_limit, cd);
+        break;
+
+        case OP_DIGIT:
+        set_type_bits(start_bits, cbit_digit, table_limit, cd);
+        break;
+
+        /* The cbit_space table has vertical tab as whitespace; we have to
+        ensure it gets set as not whitespace. */
+
+        case OP_NOT_WHITESPACE:
+        set_nottype_bits(start_bits, cbit_space, table_limit, cd);
+        start_bits[1] |= 0x08;
+        break;
+
+        /* The cbit_space table has vertical tab as whitespace; we have to
+        avoid setting it. */
+
+        case OP_WHITESPACE:
+        c = start_bits[1];    /* Save in case it was already set */
+        set_type_bits(start_bits, cbit_space, table_limit, cd);
+        start_bits[1] = (start_bits[1] & ~0x08) | c;
+        break;
+
+        case OP_NOT_WORDCHAR:
+        set_nottype_bits(start_bits, cbit_word, table_limit, cd);
+        break;
+
+        case OP_WORDCHAR:
+        set_type_bits(start_bits, cbit_word, table_limit, cd);
+        break;
+        }
+
+      tcode += 2;
+      break;
+
+      /* Character class where all the information is in a bit map: set the
+      bits and either carry on or not, according to the repeat count. If it was
+      a negative class, and we are operating with UTF-8 characters, any byte
+      with a value >= 0xc4 is a potentially valid starter because it starts a
+      character with a value > 255. */
+
+      case OP_NCLASS:
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+      if (utf)
+        {
+        start_bits[24] |= 0xf0;              /* Bits for 0xc4 - 0xc8 */
+        memset(start_bits+25, 0xff, 7);      /* Bits for 0xc9 - 0xff */
+        }
+#endif
+#ifdef COMPILE_PCRE16
+      SET_BIT(0xFF);                         /* For characters > 255 */
+#endif
+      /* Fall through */
+
+      case OP_CLASS:
+        {
+        pcre_uint8 *map;
+        tcode++;
+        map = (pcre_uint8 *)tcode;
+
+        /* In UTF-8 mode, the bits in a bit map correspond to character
+        values, not to byte values. However, the bit map we are constructing is
+        for byte values. So we have to do a conversion for characters whose
+        value is > 127. In fact, there are only two possible starting bytes for
+        characters in the range 128 - 255. */
+
+#if defined SUPPORT_UTF && defined COMPILE_PCRE8
+        if (utf)
+          {
+          for (c = 0; c < 16; c++) start_bits[c] |= map[c];
+          for (c = 128; c < 256; c++)
+            {
+            if ((map[c/8] && (1 << (c&7))) != 0)
+              {
+              int d = (c >> 6) | 0xc0;            /* Set bit for this starter */
+              start_bits[d/8] |= (1 << (d&7));    /* and then skip on to the */
+              c = (c & 0xc0) + 0x40 - 1;          /* next relevant character. */
+              }
+            }
+          }
+        else
+#endif
+          {
+          /* In non-UTF-8 mode, the two bit maps are completely compatible. */
+          for (c = 0; c < 32; c++) start_bits[c] |= map[c];
+          }
+
+        /* Advance past the bit map, and act on what follows. For a zero
+        minimum repeat, continue; otherwise stop processing. */
+
+        tcode += 32 / sizeof(pcre_uchar);
+        switch (*tcode)
+          {
+          case OP_CRSTAR:
+          case OP_CRMINSTAR:
+          case OP_CRQUERY:
+          case OP_CRMINQUERY:
+          tcode++;
+          break;
+
+          case OP_CRRANGE:
+          case OP_CRMINRANGE:
+          if (GET2(tcode, 1) == 0) tcode += 1 + 2 * IMM2_SIZE;
+            else try_next = FALSE;
+          break;
+
+          default:
+          try_next = FALSE;
+          break;
+          }
+        }
+      break; /* End of bitmap class handling */
+
+      }      /* End of switch */
+    }        /* End of try_next loop */
+
+  code += GET(code, 1);   /* Advance to next branch */
+  }
+while (*code == OP_ALT);
+return yield;
+}
+
+
+
+
+
+/*************************************************
+*          Study a compiled expression           *
+*************************************************/
+
+/* This function is handed a compiled expression that it must study to produce
+information that will speed up the matching. It returns a pcre[16]_extra block
+which then gets handed back to pcre_exec().
+
+Arguments:
+  re        points to the compiled expression
+  options   contains option bits
+  errorptr  points to where to place error messages;
+            set NULL unless error
+
+Returns:    pointer to a pcre[16]_extra block, with study_data filled in and
+              the appropriate flags set;
+            NULL on error or if no optimization possible
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN pcre_extra * PCRE_CALL_CONVENTION
+pcre_study(const pcre *external_re, int options, const char **errorptr)
+#else
+PCRE_EXP_DEFN pcre16_extra * PCRE_CALL_CONVENTION
+pcre16_study(const pcre16 *external_re, int options, const char **errorptr)
+#endif
+{
+int min;
+BOOL bits_set = FALSE;
+pcre_uint8 start_bits[32];
+PUBL(extra) *extra = NULL;
+pcre_study_data *study;
+const pcre_uint8 *tables;
+pcre_uchar *code;
+compile_data compile_block;
+const REAL_PCRE *re = (const REAL_PCRE *)external_re;
+
+*errorptr = NULL;
+
+if (re == NULL || re->magic_number != MAGIC_NUMBER)
+  {
+  *errorptr = "argument is not a compiled regular expression";
+  return NULL;
+  }
+
+if ((re->flags & PCRE_MODE) == 0)
+  {
+#ifdef COMPILE_PCRE8
+  *errorptr = "argument is compiled in 16 bit mode";
+#else
+  *errorptr = "argument is compiled in 8 bit mode";
+#endif
+  return NULL;
+  }
+
+if ((options & ~PUBLIC_STUDY_OPTIONS) != 0)
+  {
+  *errorptr = "unknown or incorrect option bit(s) set";
+  return NULL;
+  }
+
+code = (pcre_uchar *)re + re->name_table_offset +
+  (re->name_count * re->name_entry_size);
+
+/* For an anchored pattern, or an unanchored pattern that has a first char, or
+a multiline pattern that matches only at "line starts", there is no point in
+seeking a list of starting bytes. */
+
+if ((re->options & PCRE_ANCHORED) == 0 &&
+    (re->flags & (PCRE_FIRSTSET|PCRE_STARTLINE)) == 0)
+  {
+  int rc;
+
+  /* Set the character tables in the block that is passed around */
+
+  tables = re->tables;
+
+#ifdef COMPILE_PCRE8
+  if (tables == NULL)
+    (void)pcre_fullinfo(external_re, NULL, PCRE_INFO_DEFAULT_TABLES,
+    (void *)(&tables));
+#else
+  if (tables == NULL)
+    (void)pcre16_fullinfo(external_re, NULL, PCRE_INFO_DEFAULT_TABLES,
+    (void *)(&tables));
+#endif
+
+  compile_block.lcc = tables + lcc_offset;
+  compile_block.fcc = tables + fcc_offset;
+  compile_block.cbits = tables + cbits_offset;
+  compile_block.ctypes = tables + ctypes_offset;
+
+  /* See if we can find a fixed set of initial characters for the pattern. */
+
+  memset(start_bits, 0, 32 * sizeof(pcre_uint8));
+  rc = set_start_bits(code, start_bits, (re->options & PCRE_UTF8) != 0,
+    &compile_block);
+  bits_set = rc == SSB_DONE;
+  if (rc == SSB_UNKNOWN)
+    {
+    *errorptr = "internal error: opcode not recognized";
+    return NULL;
+    }
+  }
+
+/* Find the minimum length of subject string. */
+
+switch(min = find_minlength(code, code, re->options, 0))
+  {
+  case -2: *errorptr = "internal error: missing capturing bracket"; return NULL;
+  case -3: *errorptr = "internal error: opcode not recognized"; return NULL;
+  default: break;
+  }
+
+/* If a set of starting bytes has been identified, or if the minimum length is
+greater than zero, or if JIT optimization has been requested, get a
+pcre[16]_extra block and a pcre_study_data block. The study data is put in the
+latter, which is pointed to by the former, which may also get additional data
+set later by the calling program. At the moment, the size of pcre_study_data
+is fixed. We nevertheless save it in a field for returning via the
+pcre_fullinfo() function so that if it becomes variable in the future,
+we don't have to change that code. */
+
+if (bits_set || min > 0
+#ifdef SUPPORT_JIT
+    || (options & (PCRE_STUDY_JIT_COMPILE | PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE
+                 | PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE)) != 0
+#endif
+  )
+  {
+  extra = (PUBL(extra) *)(PUBL(malloc))
+    (sizeof(PUBL(extra)) + sizeof(pcre_study_data));
+  if (extra == NULL)
+    {
+    *errorptr = "failed to get memory";
+    return NULL;
+    }
+
+  study = (pcre_study_data *)((char *)extra + sizeof(PUBL(extra)));
+  extra->flags = PCRE_EXTRA_STUDY_DATA;
+  extra->study_data = study;
+
+  study->size = sizeof(pcre_study_data);
+  study->flags = 0;
+
+  /* Set the start bits always, to avoid unset memory errors if the
+  study data is written to a file, but set the flag only if any of the bits
+  are set, to save time looking when none are. */
+
+  if (bits_set)
+    {
+    study->flags |= PCRE_STUDY_MAPPED;
+    memcpy(study->start_bits, start_bits, sizeof(start_bits));
+    }
+  else memset(study->start_bits, 0, 32 * sizeof(pcre_uint8));
+
+#ifdef PCRE_DEBUG
+  if (bits_set)
+    {
+    pcre_uint8 *ptr = start_bits;
+    int i;
+
+    printf("Start bits:\n");
+    for (i = 0; i < 32; i++)
+      printf("%3d: %02x%s", i * 8, *ptr++, ((i + 1) & 0x7) != 0? " " : "\n");
+    }
+#endif
+
+  /* Always set the minlength value in the block, because the JIT compiler
+  makes use of it. However, don't set the bit unless the length is greater than
+  zero - the interpretive pcre_exec() and pcre_dfa_exec() needn't waste time
+  checking the zero case. */
+
+  if (min > 0)
+    {
+    study->flags |= PCRE_STUDY_MINLEN;
+    study->minlength = min;
+    }
+  else study->minlength = 0;
+
+  /* If JIT support was compiled and requested, attempt the JIT compilation.
+  If no starting bytes were found, and the minimum length is zero, and JIT
+  compilation fails, abandon the extra block and return NULL. */
+
+#ifdef SUPPORT_JIT
+  extra->executable_jit = NULL;
+  if ((options & PCRE_STUDY_JIT_COMPILE) != 0)
+    PRIV(jit_compile)(re, extra, JIT_COMPILE);
+  if ((options & PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE) != 0)
+    PRIV(jit_compile)(re, extra, JIT_PARTIAL_SOFT_COMPILE);
+  if ((options & PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE) != 0)
+    PRIV(jit_compile)(re, extra, JIT_PARTIAL_HARD_COMPILE);
+
+  if (study->flags == 0 && (extra->flags & PCRE_EXTRA_EXECUTABLE_JIT) == 0)
+    {
+#ifdef COMPILE_PCRE8
+    pcre_free_study(extra);
+#endif
+#ifdef COMPILE_PCRE16
+    pcre16_free_study(extra);
+#endif
+    extra = NULL;
+    }
+#endif
+  }
+
+return extra;
+}
+
+
+/*************************************************
+*          Free the study data                   *
+*************************************************/
+
+/* This function frees the memory that was obtained by pcre_study().
+
+Argument:   a pointer to the pcre[16]_extra block
+Returns:    nothing
+*/
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN void
+pcre_free_study(pcre_extra *extra)
+#else
+PCRE_EXP_DEFN void
+pcre16_free_study(pcre16_extra *extra)
+#endif
+{
+if (extra == NULL)
+  return;
+#ifdef SUPPORT_JIT
+if ((extra->flags & PCRE_EXTRA_EXECUTABLE_JIT) != 0 &&
+     extra->executable_jit != NULL)
+  PRIV(jit_free)(extra->executable_jit);
+#endif
+PUBL(free)(extra);
+}
+
+/* End of pcre_study.c */
diff --git a/8.31/pcre_tables.c b/8.31/pcre_tables.c
new file mode 100644
index 0000000..7ac2d89
--- /dev/null
+++ b/8.31/pcre_tables.c
@@ -0,0 +1,589 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+#ifndef PCRE_INCLUDED
+
+/* This module contains some fixed tables that are used by more than one of the
+PCRE code modules. The tables are also #included by the pcretest program, which
+uses macros to change their names from _pcre_xxx to xxxx, thereby avoiding name
+clashes with the library. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+#endif /* PCRE_INCLUDED */
+
+/* Table of sizes for the fixed-length opcodes. It's defined in a macro so that
+the definition is next to the definition of the opcodes in pcre_internal.h. */
+
+const pcre_uint8 PRIV(OP_lengths)[] = { OP_LENGTHS };
+
+
+
+/*************************************************
+*           Tables for UTF-8 support             *
+*************************************************/
+
+/* These are the breakpoints for different numbers of bytes in a UTF-8
+character. */
+
+#if (defined SUPPORT_UTF && defined COMPILE_PCRE8) \
+  || (defined PCRE_INCLUDED && defined SUPPORT_PCRE16)
+
+/* These tables are also required by pcretest in 16 bit mode. */
+
+const int PRIV(utf8_table1)[] =
+  { 0x7f, 0x7ff, 0xffff, 0x1fffff, 0x3ffffff, 0x7fffffff};
+
+const int PRIV(utf8_table1_size) = sizeof(PRIV(utf8_table1)) / sizeof(int);
+
+/* These are the indicator bits and the mask for the data bits to set in the
+first byte of a character, indexed by the number of additional bytes. */
+
+const int PRIV(utf8_table2)[] = { 0,    0xc0, 0xe0, 0xf0, 0xf8, 0xfc};
+const int PRIV(utf8_table3)[] = { 0xff, 0x1f, 0x0f, 0x07, 0x03, 0x01};
+
+/* Table of the number of extra bytes, indexed by the first byte masked with
+0x3f. The highest number for a valid UTF-8 first byte is in fact 0x3d. */
+
+const pcre_uint8 PRIV(utf8_table4)[] = {
+  1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+  1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
+  2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
+  3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 };
+
+#endif /* (SUPPORT_UTF && COMPILE_PCRE8) || (PCRE_INCLUDED && SUPPORT_PCRE16)*/
+
+#ifdef SUPPORT_UTF
+
+/* Table to translate from particular type value to the general value. */
+
+const int PRIV(ucp_gentype)[] = {
+  ucp_C, ucp_C, ucp_C, ucp_C, ucp_C,  /* Cc, Cf, Cn, Co, Cs */
+  ucp_L, ucp_L, ucp_L, ucp_L, ucp_L,  /* Ll, Lu, Lm, Lo, Lt */
+  ucp_M, ucp_M, ucp_M,                /* Mc, Me, Mn */
+  ucp_N, ucp_N, ucp_N,                /* Nd, Nl, No */
+  ucp_P, ucp_P, ucp_P, ucp_P, ucp_P,  /* Pc, Pd, Pe, Pf, Pi */
+  ucp_P, ucp_P,                       /* Ps, Po */
+  ucp_S, ucp_S, ucp_S, ucp_S,         /* Sc, Sk, Sm, So */
+  ucp_Z, ucp_Z, ucp_Z                 /* Zl, Zp, Zs */
+};
+
+#ifdef SUPPORT_JIT
+/* This table reverses PRIV(ucp_gentype). We can save the cost
+of a memory load. */
+
+const int PRIV(ucp_typerange)[] = {
+  ucp_Cc, ucp_Cs,
+  ucp_Ll, ucp_Lu,
+  ucp_Mc, ucp_Mn,
+  ucp_Nd, ucp_No,
+  ucp_Pc, ucp_Ps,
+  ucp_Sc, ucp_So,
+  ucp_Zl, ucp_Zs,
+};
+#endif /* SUPPORT_JIT */
+
+/* The pcre_utt[] table below translates Unicode property names into type and
+code values. It is searched by binary chop, so must be in collating sequence of
+name. Originally, the table contained pointers to the name strings in the first
+field of each entry. However, that leads to a large number of relocations when
+a shared library is dynamically loaded. A significant reduction is made by
+putting all the names into a single, large string and then using offsets in the
+table itself. Maintenance is more error-prone, but frequent changes to this
+data are unlikely.
+
+July 2008: There is now a script called maint/GenerateUtt.py that can be used
+to generate this data automatically instead of maintaining it by hand.
+
+The script was updated in March 2009 to generate a new EBCDIC-compliant
+version. Like all other character and string literals that are compared against
+the regular expression pattern, we must use STR_ macros instead of literal
+strings to make sure that UTF-8 support works on EBCDIC platforms. */
+
+#define STRING_Any0 STR_A STR_n STR_y "\0"
+#define STRING_Arabic0 STR_A STR_r STR_a STR_b STR_i STR_c "\0"
+#define STRING_Armenian0 STR_A STR_r STR_m STR_e STR_n STR_i STR_a STR_n "\0"
+#define STRING_Avestan0 STR_A STR_v STR_e STR_s STR_t STR_a STR_n "\0"
+#define STRING_Balinese0 STR_B STR_a STR_l STR_i STR_n STR_e STR_s STR_e "\0"
+#define STRING_Bamum0 STR_B STR_a STR_m STR_u STR_m "\0"
+#define STRING_Batak0 STR_B STR_a STR_t STR_a STR_k "\0"
+#define STRING_Bengali0 STR_B STR_e STR_n STR_g STR_a STR_l STR_i "\0"
+#define STRING_Bopomofo0 STR_B STR_o STR_p STR_o STR_m STR_o STR_f STR_o "\0"
+#define STRING_Brahmi0 STR_B STR_r STR_a STR_h STR_m STR_i "\0"
+#define STRING_Braille0 STR_B STR_r STR_a STR_i STR_l STR_l STR_e "\0"
+#define STRING_Buginese0 STR_B STR_u STR_g STR_i STR_n STR_e STR_s STR_e "\0"
+#define STRING_Buhid0 STR_B STR_u STR_h STR_i STR_d "\0"
+#define STRING_C0 STR_C "\0"
+#define STRING_Canadian_Aboriginal0 STR_C STR_a STR_n STR_a STR_d STR_i STR_a STR_n STR_UNDERSCORE STR_A STR_b STR_o STR_r STR_i STR_g STR_i STR_n STR_a STR_l "\0"
+#define STRING_Carian0 STR_C STR_a STR_r STR_i STR_a STR_n "\0"
+#define STRING_Cc0 STR_C STR_c "\0"
+#define STRING_Cf0 STR_C STR_f "\0"
+#define STRING_Chakma0 STR_C STR_h STR_a STR_k STR_m STR_a "\0"
+#define STRING_Cham0 STR_C STR_h STR_a STR_m "\0"
+#define STRING_Cherokee0 STR_C STR_h STR_e STR_r STR_o STR_k STR_e STR_e "\0"
+#define STRING_Cn0 STR_C STR_n "\0"
+#define STRING_Co0 STR_C STR_o "\0"
+#define STRING_Common0 STR_C STR_o STR_m STR_m STR_o STR_n "\0"
+#define STRING_Coptic0 STR_C STR_o STR_p STR_t STR_i STR_c "\0"
+#define STRING_Cs0 STR_C STR_s "\0"
+#define STRING_Cuneiform0 STR_C STR_u STR_n STR_e STR_i STR_f STR_o STR_r STR_m "\0"
+#define STRING_Cypriot0 STR_C STR_y STR_p STR_r STR_i STR_o STR_t "\0"
+#define STRING_Cyrillic0 STR_C STR_y STR_r STR_i STR_l STR_l STR_i STR_c "\0"
+#define STRING_Deseret0 STR_D STR_e STR_s STR_e STR_r STR_e STR_t "\0"
+#define STRING_Devanagari0 STR_D STR_e STR_v STR_a STR_n STR_a STR_g STR_a STR_r STR_i "\0"
+#define STRING_Egyptian_Hieroglyphs0 STR_E STR_g STR_y STR_p STR_t STR_i STR_a STR_n STR_UNDERSCORE STR_H STR_i STR_e STR_r STR_o STR_g STR_l STR_y STR_p STR_h STR_s "\0"
+#define STRING_Ethiopic0 STR_E STR_t STR_h STR_i STR_o STR_p STR_i STR_c "\0"
+#define STRING_Georgian0 STR_G STR_e STR_o STR_r STR_g STR_i STR_a STR_n "\0"
+#define STRING_Glagolitic0 STR_G STR_l STR_a STR_g STR_o STR_l STR_i STR_t STR_i STR_c "\0"
+#define STRING_Gothic0 STR_G STR_o STR_t STR_h STR_i STR_c "\0"
+#define STRING_Greek0 STR_G STR_r STR_e STR_e STR_k "\0"
+#define STRING_Gujarati0 STR_G STR_u STR_j STR_a STR_r STR_a STR_t STR_i "\0"
+#define STRING_Gurmukhi0 STR_G STR_u STR_r STR_m STR_u STR_k STR_h STR_i "\0"
+#define STRING_Han0 STR_H STR_a STR_n "\0"
+#define STRING_Hangul0 STR_H STR_a STR_n STR_g STR_u STR_l "\0"
+#define STRING_Hanunoo0 STR_H STR_a STR_n STR_u STR_n STR_o STR_o "\0"
+#define STRING_Hebrew0 STR_H STR_e STR_b STR_r STR_e STR_w "\0"
+#define STRING_Hiragana0 STR_H STR_i STR_r STR_a STR_g STR_a STR_n STR_a "\0"
+#define STRING_Imperial_Aramaic0 STR_I STR_m STR_p STR_e STR_r STR_i STR_a STR_l STR_UNDERSCORE STR_A STR_r STR_a STR_m STR_a STR_i STR_c "\0"
+#define STRING_Inherited0 STR_I STR_n STR_h STR_e STR_r STR_i STR_t STR_e STR_d "\0"
+#define STRING_Inscriptional_Pahlavi0 STR_I STR_n STR_s STR_c STR_r STR_i STR_p STR_t STR_i STR_o STR_n STR_a STR_l STR_UNDERSCORE STR_P STR_a STR_h STR_l STR_a STR_v STR_i "\0"
+#define STRING_Inscriptional_Parthian0 STR_I STR_n STR_s STR_c STR_r STR_i STR_p STR_t STR_i STR_o STR_n STR_a STR_l STR_UNDERSCORE STR_P STR_a STR_r STR_t STR_h STR_i STR_a STR_n "\0"
+#define STRING_Javanese0 STR_J STR_a STR_v STR_a STR_n STR_e STR_s STR_e "\0"
+#define STRING_Kaithi0 STR_K STR_a STR_i STR_t STR_h STR_i "\0"
+#define STRING_Kannada0 STR_K STR_a STR_n STR_n STR_a STR_d STR_a "\0"
+#define STRING_Katakana0 STR_K STR_a STR_t STR_a STR_k STR_a STR_n STR_a "\0"
+#define STRING_Kayah_Li0 STR_K STR_a STR_y STR_a STR_h STR_UNDERSCORE STR_L STR_i "\0"
+#define STRING_Kharoshthi0 STR_K STR_h STR_a STR_r STR_o STR_s STR_h STR_t STR_h STR_i "\0"
+#define STRING_Khmer0 STR_K STR_h STR_m STR_e STR_r "\0"
+#define STRING_L0 STR_L "\0"
+#define STRING_L_AMPERSAND0 STR_L STR_AMPERSAND "\0"
+#define STRING_Lao0 STR_L STR_a STR_o "\0"
+#define STRING_Latin0 STR_L STR_a STR_t STR_i STR_n "\0"
+#define STRING_Lepcha0 STR_L STR_e STR_p STR_c STR_h STR_a "\0"
+#define STRING_Limbu0 STR_L STR_i STR_m STR_b STR_u "\0"
+#define STRING_Linear_B0 STR_L STR_i STR_n STR_e STR_a STR_r STR_UNDERSCORE STR_B "\0"
+#define STRING_Lisu0 STR_L STR_i STR_s STR_u "\0"
+#define STRING_Ll0 STR_L STR_l "\0"
+#define STRING_Lm0 STR_L STR_m "\0"
+#define STRING_Lo0 STR_L STR_o "\0"
+#define STRING_Lt0 STR_L STR_t "\0"
+#define STRING_Lu0 STR_L STR_u "\0"
+#define STRING_Lycian0 STR_L STR_y STR_c STR_i STR_a STR_n "\0"
+#define STRING_Lydian0 STR_L STR_y STR_d STR_i STR_a STR_n "\0"
+#define STRING_M0 STR_M "\0"
+#define STRING_Malayalam0 STR_M STR_a STR_l STR_a STR_y STR_a STR_l STR_a STR_m "\0"
+#define STRING_Mandaic0 STR_M STR_a STR_n STR_d STR_a STR_i STR_c "\0"
+#define STRING_Mc0 STR_M STR_c "\0"
+#define STRING_Me0 STR_M STR_e "\0"
+#define STRING_Meetei_Mayek0 STR_M STR_e STR_e STR_t STR_e STR_i STR_UNDERSCORE STR_M STR_a STR_y STR_e STR_k "\0"
+#define STRING_Meroitic_Cursive0 STR_M STR_e STR_r STR_o STR_i STR_t STR_i STR_c STR_UNDERSCORE STR_C STR_u STR_r STR_s STR_i STR_v STR_e "\0"
+#define STRING_Meroitic_Hieroglyphs0 STR_M STR_e STR_r STR_o STR_i STR_t STR_i STR_c STR_UNDERSCORE STR_H STR_i STR_e STR_r STR_o STR_g STR_l STR_y STR_p STR_h STR_s "\0"
+#define STRING_Miao0 STR_M STR_i STR_a STR_o "\0"
+#define STRING_Mn0 STR_M STR_n "\0"
+#define STRING_Mongolian0 STR_M STR_o STR_n STR_g STR_o STR_l STR_i STR_a STR_n "\0"
+#define STRING_Myanmar0 STR_M STR_y STR_a STR_n STR_m STR_a STR_r "\0"
+#define STRING_N0 STR_N "\0"
+#define STRING_Nd0 STR_N STR_d "\0"
+#define STRING_New_Tai_Lue0 STR_N STR_e STR_w STR_UNDERSCORE STR_T STR_a STR_i STR_UNDERSCORE STR_L STR_u STR_e "\0"
+#define STRING_Nko0 STR_N STR_k STR_o "\0"
+#define STRING_Nl0 STR_N STR_l "\0"
+#define STRING_No0 STR_N STR_o "\0"
+#define STRING_Ogham0 STR_O STR_g STR_h STR_a STR_m "\0"
+#define STRING_Ol_Chiki0 STR_O STR_l STR_UNDERSCORE STR_C STR_h STR_i STR_k STR_i "\0"
+#define STRING_Old_Italic0 STR_O STR_l STR_d STR_UNDERSCORE STR_I STR_t STR_a STR_l STR_i STR_c "\0"
+#define STRING_Old_Persian0 STR_O STR_l STR_d STR_UNDERSCORE STR_P STR_e STR_r STR_s STR_i STR_a STR_n "\0"
+#define STRING_Old_South_Arabian0 STR_O STR_l STR_d STR_UNDERSCORE STR_S STR_o STR_u STR_t STR_h STR_UNDERSCORE STR_A STR_r STR_a STR_b STR_i STR_a STR_n "\0"
+#define STRING_Old_Turkic0 STR_O STR_l STR_d STR_UNDERSCORE STR_T STR_u STR_r STR_k STR_i STR_c "\0"
+#define STRING_Oriya0 STR_O STR_r STR_i STR_y STR_a "\0"
+#define STRING_Osmanya0 STR_O STR_s STR_m STR_a STR_n STR_y STR_a "\0"
+#define STRING_P0 STR_P "\0"
+#define STRING_Pc0 STR_P STR_c "\0"
+#define STRING_Pd0 STR_P STR_d "\0"
+#define STRING_Pe0 STR_P STR_e "\0"
+#define STRING_Pf0 STR_P STR_f "\0"
+#define STRING_Phags_Pa0 STR_P STR_h STR_a STR_g STR_s STR_UNDERSCORE STR_P STR_a "\0"
+#define STRING_Phoenician0 STR_P STR_h STR_o STR_e STR_n STR_i STR_c STR_i STR_a STR_n "\0"
+#define STRING_Pi0 STR_P STR_i "\0"
+#define STRING_Po0 STR_P STR_o "\0"
+#define STRING_Ps0 STR_P STR_s "\0"
+#define STRING_Rejang0 STR_R STR_e STR_j STR_a STR_n STR_g "\0"
+#define STRING_Runic0 STR_R STR_u STR_n STR_i STR_c "\0"
+#define STRING_S0 STR_S "\0"
+#define STRING_Samaritan0 STR_S STR_a STR_m STR_a STR_r STR_i STR_t STR_a STR_n "\0"
+#define STRING_Saurashtra0 STR_S STR_a STR_u STR_r STR_a STR_s STR_h STR_t STR_r STR_a "\0"
+#define STRING_Sc0 STR_S STR_c "\0"
+#define STRING_Sharada0 STR_S STR_h STR_a STR_r STR_a STR_d STR_a "\0"
+#define STRING_Shavian0 STR_S STR_h STR_a STR_v STR_i STR_a STR_n "\0"
+#define STRING_Sinhala0 STR_S STR_i STR_n STR_h STR_a STR_l STR_a "\0"
+#define STRING_Sk0 STR_S STR_k "\0"
+#define STRING_Sm0 STR_S STR_m "\0"
+#define STRING_So0 STR_S STR_o "\0"
+#define STRING_Sora_Sompeng0 STR_S STR_o STR_r STR_a STR_UNDERSCORE STR_S STR_o STR_m STR_p STR_e STR_n STR_g "\0"
+#define STRING_Sundanese0 STR_S STR_u STR_n STR_d STR_a STR_n STR_e STR_s STR_e "\0"
+#define STRING_Syloti_Nagri0 STR_S STR_y STR_l STR_o STR_t STR_i STR_UNDERSCORE STR_N STR_a STR_g STR_r STR_i "\0"
+#define STRING_Syriac0 STR_S STR_y STR_r STR_i STR_a STR_c "\0"
+#define STRING_Tagalog0 STR_T STR_a STR_g STR_a STR_l STR_o STR_g "\0"
+#define STRING_Tagbanwa0 STR_T STR_a STR_g STR_b STR_a STR_n STR_w STR_a "\0"
+#define STRING_Tai_Le0 STR_T STR_a STR_i STR_UNDERSCORE STR_L STR_e "\0"
+#define STRING_Tai_Tham0 STR_T STR_a STR_i STR_UNDERSCORE STR_T STR_h STR_a STR_m "\0"
+#define STRING_Tai_Viet0 STR_T STR_a STR_i STR_UNDERSCORE STR_V STR_i STR_e STR_t "\0"
+#define STRING_Takri0 STR_T STR_a STR_k STR_r STR_i "\0"
+#define STRING_Tamil0 STR_T STR_a STR_m STR_i STR_l "\0"
+#define STRING_Telugu0 STR_T STR_e STR_l STR_u STR_g STR_u "\0"
+#define STRING_Thaana0 STR_T STR_h STR_a STR_a STR_n STR_a "\0"
+#define STRING_Thai0 STR_T STR_h STR_a STR_i "\0"
+#define STRING_Tibetan0 STR_T STR_i STR_b STR_e STR_t STR_a STR_n "\0"
+#define STRING_Tifinagh0 STR_T STR_i STR_f STR_i STR_n STR_a STR_g STR_h "\0"
+#define STRING_Ugaritic0 STR_U STR_g STR_a STR_r STR_i STR_t STR_i STR_c "\0"
+#define STRING_Vai0 STR_V STR_a STR_i "\0"
+#define STRING_Xan0 STR_X STR_a STR_n "\0"
+#define STRING_Xps0 STR_X STR_p STR_s "\0"
+#define STRING_Xsp0 STR_X STR_s STR_p "\0"
+#define STRING_Xwd0 STR_X STR_w STR_d "\0"
+#define STRING_Yi0 STR_Y STR_i "\0"
+#define STRING_Z0 STR_Z "\0"
+#define STRING_Zl0 STR_Z STR_l "\0"
+#define STRING_Zp0 STR_Z STR_p "\0"
+#define STRING_Zs0 STR_Z STR_s "\0"
+
+const char PRIV(utt_names)[] =
+  STRING_Any0
+  STRING_Arabic0
+  STRING_Armenian0
+  STRING_Avestan0
+  STRING_Balinese0
+  STRING_Bamum0
+  STRING_Batak0
+  STRING_Bengali0
+  STRING_Bopomofo0
+  STRING_Brahmi0
+  STRING_Braille0
+  STRING_Buginese0
+  STRING_Buhid0
+  STRING_C0
+  STRING_Canadian_Aboriginal0
+  STRING_Carian0
+  STRING_Cc0
+  STRING_Cf0
+  STRING_Chakma0
+  STRING_Cham0
+  STRING_Cherokee0
+  STRING_Cn0
+  STRING_Co0
+  STRING_Common0
+  STRING_Coptic0
+  STRING_Cs0
+  STRING_Cuneiform0
+  STRING_Cypriot0
+  STRING_Cyrillic0
+  STRING_Deseret0
+  STRING_Devanagari0
+  STRING_Egyptian_Hieroglyphs0
+  STRING_Ethiopic0
+  STRING_Georgian0
+  STRING_Glagolitic0
+  STRING_Gothic0
+  STRING_Greek0
+  STRING_Gujarati0
+  STRING_Gurmukhi0
+  STRING_Han0
+  STRING_Hangul0
+  STRING_Hanunoo0
+  STRING_Hebrew0
+  STRING_Hiragana0
+  STRING_Imperial_Aramaic0
+  STRING_Inherited0
+  STRING_Inscriptional_Pahlavi0
+  STRING_Inscriptional_Parthian0
+  STRING_Javanese0
+  STRING_Kaithi0
+  STRING_Kannada0
+  STRING_Katakana0
+  STRING_Kayah_Li0
+  STRING_Kharoshthi0
+  STRING_Khmer0
+  STRING_L0
+  STRING_L_AMPERSAND0
+  STRING_Lao0
+  STRING_Latin0
+  STRING_Lepcha0
+  STRING_Limbu0
+  STRING_Linear_B0
+  STRING_Lisu0
+  STRING_Ll0
+  STRING_Lm0
+  STRING_Lo0
+  STRING_Lt0
+  STRING_Lu0
+  STRING_Lycian0
+  STRING_Lydian0
+  STRING_M0
+  STRING_Malayalam0
+  STRING_Mandaic0
+  STRING_Mc0
+  STRING_Me0
+  STRING_Meetei_Mayek0
+  STRING_Meroitic_Cursive0
+  STRING_Meroitic_Hieroglyphs0
+  STRING_Miao0
+  STRING_Mn0
+  STRING_Mongolian0
+  STRING_Myanmar0
+  STRING_N0
+  STRING_Nd0
+  STRING_New_Tai_Lue0
+  STRING_Nko0
+  STRING_Nl0
+  STRING_No0
+  STRING_Ogham0
+  STRING_Ol_Chiki0
+  STRING_Old_Italic0
+  STRING_Old_Persian0
+  STRING_Old_South_Arabian0
+  STRING_Old_Turkic0
+  STRING_Oriya0
+  STRING_Osmanya0
+  STRING_P0
+  STRING_Pc0
+  STRING_Pd0
+  STRING_Pe0
+  STRING_Pf0
+  STRING_Phags_Pa0
+  STRING_Phoenician0
+  STRING_Pi0
+  STRING_Po0
+  STRING_Ps0
+  STRING_Rejang0
+  STRING_Runic0
+  STRING_S0
+  STRING_Samaritan0
+  STRING_Saurashtra0
+  STRING_Sc0
+  STRING_Sharada0
+  STRING_Shavian0
+  STRING_Sinhala0
+  STRING_Sk0
+  STRING_Sm0
+  STRING_So0
+  STRING_Sora_Sompeng0
+  STRING_Sundanese0
+  STRING_Syloti_Nagri0
+  STRING_Syriac0
+  STRING_Tagalog0
+  STRING_Tagbanwa0
+  STRING_Tai_Le0
+  STRING_Tai_Tham0
+  STRING_Tai_Viet0
+  STRING_Takri0
+  STRING_Tamil0
+  STRING_Telugu0
+  STRING_Thaana0
+  STRING_Thai0
+  STRING_Tibetan0
+  STRING_Tifinagh0
+  STRING_Ugaritic0
+  STRING_Vai0
+  STRING_Xan0
+  STRING_Xps0
+  STRING_Xsp0
+  STRING_Xwd0
+  STRING_Yi0
+  STRING_Z0
+  STRING_Zl0
+  STRING_Zp0
+  STRING_Zs0;
+
+const ucp_type_table PRIV(utt)[] = {
+  {   0, PT_ANY, 0 },
+  {   4, PT_SC, ucp_Arabic },
+  {  11, PT_SC, ucp_Armenian },
+  {  20, PT_SC, ucp_Avestan },
+  {  28, PT_SC, ucp_Balinese },
+  {  37, PT_SC, ucp_Bamum },
+  {  43, PT_SC, ucp_Batak },
+  {  49, PT_SC, ucp_Bengali },
+  {  57, PT_SC, ucp_Bopomofo },
+  {  66, PT_SC, ucp_Brahmi },
+  {  73, PT_SC, ucp_Braille },
+  {  81, PT_SC, ucp_Buginese },
+  {  90, PT_SC, ucp_Buhid },
+  {  96, PT_GC, ucp_C },
+  {  98, PT_SC, ucp_Canadian_Aboriginal },
+  { 118, PT_SC, ucp_Carian },
+  { 125, PT_PC, ucp_Cc },
+  { 128, PT_PC, ucp_Cf },
+  { 131, PT_SC, ucp_Chakma },
+  { 138, PT_SC, ucp_Cham },
+  { 143, PT_SC, ucp_Cherokee },
+  { 152, PT_PC, ucp_Cn },
+  { 155, PT_PC, ucp_Co },
+  { 158, PT_SC, ucp_Common },
+  { 165, PT_SC, ucp_Coptic },
+  { 172, PT_PC, ucp_Cs },
+  { 175, PT_SC, ucp_Cuneiform },
+  { 185, PT_SC, ucp_Cypriot },
+  { 193, PT_SC, ucp_Cyrillic },
+  { 202, PT_SC, ucp_Deseret },
+  { 210, PT_SC, ucp_Devanagari },
+  { 221, PT_SC, ucp_Egyptian_Hieroglyphs },
+  { 242, PT_SC, ucp_Ethiopic },
+  { 251, PT_SC, ucp_Georgian },
+  { 260, PT_SC, ucp_Glagolitic },
+  { 271, PT_SC, ucp_Gothic },
+  { 278, PT_SC, ucp_Greek },
+  { 284, PT_SC, ucp_Gujarati },
+  { 293, PT_SC, ucp_Gurmukhi },
+  { 302, PT_SC, ucp_Han },
+  { 306, PT_SC, ucp_Hangul },
+  { 313, PT_SC, ucp_Hanunoo },
+  { 321, PT_SC, ucp_Hebrew },
+  { 328, PT_SC, ucp_Hiragana },
+  { 337, PT_SC, ucp_Imperial_Aramaic },
+  { 354, PT_SC, ucp_Inherited },
+  { 364, PT_SC, ucp_Inscriptional_Pahlavi },
+  { 386, PT_SC, ucp_Inscriptional_Parthian },
+  { 409, PT_SC, ucp_Javanese },
+  { 418, PT_SC, ucp_Kaithi },
+  { 425, PT_SC, ucp_Kannada },
+  { 433, PT_SC, ucp_Katakana },
+  { 442, PT_SC, ucp_Kayah_Li },
+  { 451, PT_SC, ucp_Kharoshthi },
+  { 462, PT_SC, ucp_Khmer },
+  { 468, PT_GC, ucp_L },
+  { 470, PT_LAMP, 0 },
+  { 473, PT_SC, ucp_Lao },
+  { 477, PT_SC, ucp_Latin },
+  { 483, PT_SC, ucp_Lepcha },
+  { 490, PT_SC, ucp_Limbu },
+  { 496, PT_SC, ucp_Linear_B },
+  { 505, PT_SC, ucp_Lisu },
+  { 510, PT_PC, ucp_Ll },
+  { 513, PT_PC, ucp_Lm },
+  { 516, PT_PC, ucp_Lo },
+  { 519, PT_PC, ucp_Lt },
+  { 522, PT_PC, ucp_Lu },
+  { 525, PT_SC, ucp_Lycian },
+  { 532, PT_SC, ucp_Lydian },
+  { 539, PT_GC, ucp_M },
+  { 541, PT_SC, ucp_Malayalam },
+  { 551, PT_SC, ucp_Mandaic },
+  { 559, PT_PC, ucp_Mc },
+  { 562, PT_PC, ucp_Me },
+  { 565, PT_SC, ucp_Meetei_Mayek },
+  { 578, PT_SC, ucp_Meroitic_Cursive },
+  { 595, PT_SC, ucp_Meroitic_Hieroglyphs },
+  { 616, PT_SC, ucp_Miao },
+  { 621, PT_PC, ucp_Mn },
+  { 624, PT_SC, ucp_Mongolian },
+  { 634, PT_SC, ucp_Myanmar },
+  { 642, PT_GC, ucp_N },
+  { 644, PT_PC, ucp_Nd },
+  { 647, PT_SC, ucp_New_Tai_Lue },
+  { 659, PT_SC, ucp_Nko },
+  { 663, PT_PC, ucp_Nl },
+  { 666, PT_PC, ucp_No },
+  { 669, PT_SC, ucp_Ogham },
+  { 675, PT_SC, ucp_Ol_Chiki },
+  { 684, PT_SC, ucp_Old_Italic },
+  { 695, PT_SC, ucp_Old_Persian },
+  { 707, PT_SC, ucp_Old_South_Arabian },
+  { 725, PT_SC, ucp_Old_Turkic },
+  { 736, PT_SC, ucp_Oriya },
+  { 742, PT_SC, ucp_Osmanya },
+  { 750, PT_GC, ucp_P },
+  { 752, PT_PC, ucp_Pc },
+  { 755, PT_PC, ucp_Pd },
+  { 758, PT_PC, ucp_Pe },
+  { 761, PT_PC, ucp_Pf },
+  { 764, PT_SC, ucp_Phags_Pa },
+  { 773, PT_SC, ucp_Phoenician },
+  { 784, PT_PC, ucp_Pi },
+  { 787, PT_PC, ucp_Po },
+  { 790, PT_PC, ucp_Ps },
+  { 793, PT_SC, ucp_Rejang },
+  { 800, PT_SC, ucp_Runic },
+  { 806, PT_GC, ucp_S },
+  { 808, PT_SC, ucp_Samaritan },
+  { 818, PT_SC, ucp_Saurashtra },
+  { 829, PT_PC, ucp_Sc },
+  { 832, PT_SC, ucp_Sharada },
+  { 840, PT_SC, ucp_Shavian },
+  { 848, PT_SC, ucp_Sinhala },
+  { 856, PT_PC, ucp_Sk },
+  { 859, PT_PC, ucp_Sm },
+  { 862, PT_PC, ucp_So },
+  { 865, PT_SC, ucp_Sora_Sompeng },
+  { 878, PT_SC, ucp_Sundanese },
+  { 888, PT_SC, ucp_Syloti_Nagri },
+  { 901, PT_SC, ucp_Syriac },
+  { 908, PT_SC, ucp_Tagalog },
+  { 916, PT_SC, ucp_Tagbanwa },
+  { 925, PT_SC, ucp_Tai_Le },
+  { 932, PT_SC, ucp_Tai_Tham },
+  { 941, PT_SC, ucp_Tai_Viet },
+  { 950, PT_SC, ucp_Takri },
+  { 956, PT_SC, ucp_Tamil },
+  { 962, PT_SC, ucp_Telugu },
+  { 969, PT_SC, ucp_Thaana },
+  { 976, PT_SC, ucp_Thai },
+  { 981, PT_SC, ucp_Tibetan },
+  { 989, PT_SC, ucp_Tifinagh },
+  { 998, PT_SC, ucp_Ugaritic },
+  { 1007, PT_SC, ucp_Vai },
+  { 1011, PT_ALNUM, 0 },
+  { 1015, PT_PXSPACE, 0 },
+  { 1019, PT_SPACE, 0 },
+  { 1023, PT_WORD, 0 },
+  { 1027, PT_SC, ucp_Yi },
+  { 1030, PT_GC, ucp_Z },
+  { 1032, PT_PC, ucp_Zl },
+  { 1035, PT_PC, ucp_Zp },
+  { 1038, PT_PC, ucp_Zs }
+};
+
+const int PRIV(utt_size) = sizeof(PRIV(utt)) / sizeof(ucp_type_table);
+
+#endif /* SUPPORT_UTF */
+
+/* End of pcre_tables.c */
diff --git a/8.31/pcre_test.sh b/8.31/pcre_test.sh
new file mode 100644
index 0000000..eeb290f
--- /dev/null
+++ b/8.31/pcre_test.sh
@@ -0,0 +1,7 @@
+#! /bin/sh
+# This is a generated file.
+srcdir=D:/dev/chrisndt2main/sw/devtools/metools/public/UIComposer/Tools/pcre/8.31
+pcretest=D:/dev/chrisndt2main/sw/devtools/metools/public/UIComposer/Tools/pcre/8.31/DEBUG/pcretest.exe
+source D:/dev/chrisndt2main/sw/devtools/metools/public/UIComposer/Tools/pcre/8.31/RunTest
+if test "$?" != "0"; then exit 1; fi
+# End
diff --git a/8.31/pcre_test.txt b/8.31/pcre_test.txt
new file mode 100644
index 0000000..4891269
--- /dev/null
+++ b/8.31/pcre_test.txt
@@ -0,0 +1,8 @@
+@REM This is a generated file.
+@Echo off
+setlocal
+SET srcdir=${srcdir}
+SET pcretest=${pcretest}
+call "${srcdir}\RunTest.Bat"
+if errorlevel 1 exit /b 1
+echo RunTest.bat tests successfully completed
diff --git a/8.31/pcre_ucd.c b/8.31/pcre_ucd.c
new file mode 100644
index 0000000..cbd392f
--- /dev/null
+++ b/8.31/pcre_ucd.c
@@ -0,0 +1,3098 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+/* Unicode character database. */
+/* This file was autogenerated by the MultiStage2.py script. */
+/* Total size: 62904 bytes, block size: 128. */
+
+/* The tables herein are needed only when UCP support is built */
+/* into PCRE. This module should not be referenced otherwise, so */
+/* it should not matter whether it is compiled or not. However */
+/* a comment was received about space saving - maybe the guy linked */
+/* all the modules rather than using a library - so we include a */
+/* condition to cut out the tables when not needed. But don't leave */
+/* a totally empty module because some compilers barf at that. */
+/* Instead, just supply small dummy tables. */
+
+#ifndef SUPPORT_UCP
+const ucd_record PRIV(ucd_records)[] = {{0,0,0 }};
+const pcre_uint8 PRIV(ucd_stage1)[] = {0};
+const pcre_uint16 PRIV(ucd_stage2)[] = {0};
+#else
+
+/* When recompiling tables with a new Unicode version,
+please check types in the structure definition from pcre_internal.h:
+typedef struct {
+pcre_uint8 property_0;
+pcre_uint8 property_1;
+pcre_int32 property_2;
+} ucd_record; */
+
+
+const ucd_record PRIV(ucd_records)[] = { /* 4536 bytes, record size 8 */
+  {     9,      0,      0, }, /*   0 */
+  {     9,     29,      0, }, /*   1 */
+  {     9,     21,      0, }, /*   2 */
+  {     9,     23,      0, }, /*   3 */
+  {     9,     22,      0, }, /*   4 */
+  {     9,     18,      0, }, /*   5 */
+  {     9,     25,      0, }, /*   6 */
+  {     9,     17,      0, }, /*   7 */
+  {     9,     13,      0, }, /*   8 */
+  {    33,      9,     32, }, /*   9 */
+  {     9,     24,      0, }, /*  10 */
+  {     9,     16,      0, }, /*  11 */
+  {    33,      5,    -32, }, /*  12 */
+  {     9,     26,      0, }, /*  13 */
+  {    33,      7,      0, }, /*  14 */
+  {     9,     20,      0, }, /*  15 */
+  {     9,      1,      0, }, /*  16 */
+  {     9,     15,      0, }, /*  17 */
+  {     9,      5,    743, }, /*  18 */
+  {     9,     19,      0, }, /*  19 */
+  {    33,      5,      0, }, /*  20 */
+  {    33,      5,    121, }, /*  21 */
+  {    33,      9,      1, }, /*  22 */
+  {    33,      5,     -1, }, /*  23 */
+  {    33,      9,   -199, }, /*  24 */
+  {    33,      5,   -232, }, /*  25 */
+  {    33,      9,   -121, }, /*  26 */
+  {    33,      5,   -300, }, /*  27 */
+  {    33,      5,    195, }, /*  28 */
+  {    33,      9,    210, }, /*  29 */
+  {    33,      9,    206, }, /*  30 */
+  {    33,      9,    205, }, /*  31 */
+  {    33,      9,     79, }, /*  32 */
+  {    33,      9,    202, }, /*  33 */
+  {    33,      9,    203, }, /*  34 */
+  {    33,      9,    207, }, /*  35 */
+  {    33,      5,     97, }, /*  36 */
+  {    33,      9,    211, }, /*  37 */
+  {    33,      9,    209, }, /*  38 */
+  {    33,      5,    163, }, /*  39 */
+  {    33,      9,    213, }, /*  40 */
+  {    33,      5,    130, }, /*  41 */
+  {    33,      9,    214, }, /*  42 */
+  {    33,      9,    218, }, /*  43 */
+  {    33,      9,    217, }, /*  44 */
+  {    33,      9,    219, }, /*  45 */
+  {    33,      5,     56, }, /*  46 */
+  {    33,      9,      2, }, /*  47 */
+  {    33,      8,     -1, }, /*  48 */
+  {    33,      5,     -2, }, /*  49 */
+  {    33,      5,    -79, }, /*  50 */
+  {    33,      9,    -97, }, /*  51 */
+  {    33,      9,    -56, }, /*  52 */
+  {    33,      9,   -130, }, /*  53 */
+  {    33,      9,  10795, }, /*  54 */
+  {    33,      9,   -163, }, /*  55 */
+  {    33,      9,  10792, }, /*  56 */
+  {    33,      5,  10815, }, /*  57 */
+  {    33,      9,   -195, }, /*  58 */
+  {    33,      9,     69, }, /*  59 */
+  {    33,      9,     71, }, /*  60 */
+  {    33,      5,  10783, }, /*  61 */
+  {    33,      5,  10780, }, /*  62 */
+  {    33,      5,  10782, }, /*  63 */
+  {    33,      5,   -210, }, /*  64 */
+  {    33,      5,   -206, }, /*  65 */
+  {    33,      5,   -205, }, /*  66 */
+  {    33,      5,   -202, }, /*  67 */
+  {    33,      5,   -203, }, /*  68 */
+  {    33,      5,   -207, }, /*  69 */
+  {    33,      5,  42280, }, /*  70 */
+  {    33,      5,  42308, }, /*  71 */
+  {    33,      5,   -209, }, /*  72 */
+  {    33,      5,   -211, }, /*  73 */
+  {    33,      5,  10743, }, /*  74 */
+  {    33,      5,  10749, }, /*  75 */
+  {    33,      5,   -213, }, /*  76 */
+  {    33,      5,   -214, }, /*  77 */
+  {    33,      5,  10727, }, /*  78 */
+  {    33,      5,   -218, }, /*  79 */
+  {    33,      5,    -69, }, /*  80 */
+  {    33,      5,   -217, }, /*  81 */
+  {    33,      5,    -71, }, /*  82 */
+  {    33,      5,   -219, }, /*  83 */
+  {    33,      6,      0, }, /*  84 */
+  {     9,      6,      0, }, /*  85 */
+  {     3,     24,      0, }, /*  86 */
+  {    27,     12,      0, }, /*  87 */
+  {    27,     12,     84, }, /*  88 */
+  {    19,      9,      1, }, /*  89 */
+  {    19,      5,     -1, }, /*  90 */
+  {    19,     24,      0, }, /*  91 */
+  {     9,      2,      0, }, /*  92 */
+  {    19,      6,      0, }, /*  93 */
+  {    19,      5,    130, }, /*  94 */
+  {    19,      9,     38, }, /*  95 */
+  {    19,      9,     37, }, /*  96 */
+  {    19,      9,     64, }, /*  97 */
+  {    19,      9,     63, }, /*  98 */
+  {    19,      5,      0, }, /*  99 */
+  {    19,      9,     32, }, /* 100 */
+  {    19,      5,    -38, }, /* 101 */
+  {    19,      5,    -37, }, /* 102 */
+  {    19,      5,    -32, }, /* 103 */
+  {    19,      5,    -31, }, /* 104 */
+  {    19,      5,    -64, }, /* 105 */
+  {    19,      5,    -63, }, /* 106 */
+  {    19,      9,      8, }, /* 107 */
+  {    19,      5,    -62, }, /* 108 */
+  {    19,      5,    -57, }, /* 109 */
+  {    19,      9,      0, }, /* 110 */
+  {    19,      5,    -47, }, /* 111 */
+  {    19,      5,    -54, }, /* 112 */
+  {    19,      5,     -8, }, /* 113 */
+  {    10,      9,      1, }, /* 114 */
+  {    10,      5,     -1, }, /* 115 */
+  {    19,      5,    -86, }, /* 116 */
+  {    19,      5,    -80, }, /* 117 */
+  {    19,      5,      7, }, /* 118 */
+  {    19,      9,    -60, }, /* 119 */
+  {    19,      5,    -96, }, /* 120 */
+  {    19,     25,      0, }, /* 121 */
+  {    19,      9,     -7, }, /* 122 */
+  {    19,      9,   -130, }, /* 123 */
+  {    12,      9,     80, }, /* 124 */
+  {    12,      9,     32, }, /* 125 */
+  {    12,      5,    -32, }, /* 126 */
+  {    12,      5,    -80, }, /* 127 */
+  {    12,      9,      1, }, /* 128 */
+  {    12,      5,     -1, }, /* 129 */
+  {    12,     26,      0, }, /* 130 */
+  {    12,     12,      0, }, /* 131 */
+  {    12,     11,      0, }, /* 132 */
+  {    12,      9,     15, }, /* 133 */
+  {    12,      5,    -15, }, /* 134 */
+  {     1,      9,     48, }, /* 135 */
+  {     1,      6,      0, }, /* 136 */
+  {     1,     21,      0, }, /* 137 */
+  {     1,      5,    -48, }, /* 138 */
+  {     1,      5,      0, }, /* 139 */
+  {     1,     17,      0, }, /* 140 */
+  {     1,     23,      0, }, /* 141 */
+  {    25,     12,      0, }, /* 142 */
+  {    25,     17,      0, }, /* 143 */
+  {    25,     21,      0, }, /* 144 */
+  {    25,      7,      0, }, /* 145 */
+  {     0,      1,      0, }, /* 146 */
+  {     0,     25,      0, }, /* 147 */
+  {     0,     21,      0, }, /* 148 */
+  {     0,     23,      0, }, /* 149 */
+  {     0,     26,      0, }, /* 150 */
+  {     0,     12,      0, }, /* 151 */
+  {     0,      7,      0, }, /* 152 */
+  {     0,      6,      0, }, /* 153 */
+  {     0,     13,      0, }, /* 154 */
+  {    49,     21,      0, }, /* 155 */
+  {    49,      1,      0, }, /* 156 */
+  {    49,      7,      0, }, /* 157 */
+  {    49,     12,      0, }, /* 158 */
+  {    55,      7,      0, }, /* 159 */
+  {    55,     12,      0, }, /* 160 */
+  {    63,     13,      0, }, /* 161 */
+  {    63,      7,      0, }, /* 162 */
+  {    63,     12,      0, }, /* 163 */
+  {    63,      6,      0, }, /* 164 */
+  {    63,     26,      0, }, /* 165 */
+  {    63,     21,      0, }, /* 166 */
+  {    89,      7,      0, }, /* 167 */
+  {    89,     12,      0, }, /* 168 */
+  {    89,      6,      0, }, /* 169 */
+  {    89,     21,      0, }, /* 170 */
+  {    94,      7,      0, }, /* 171 */
+  {    94,     12,      0, }, /* 172 */
+  {    94,     21,      0, }, /* 173 */
+  {    14,     12,      0, }, /* 174 */
+  {    14,     10,      0, }, /* 175 */
+  {    14,      7,      0, }, /* 176 */
+  {    14,     13,      0, }, /* 177 */
+  {    14,     21,      0, }, /* 178 */
+  {    14,      6,      0, }, /* 179 */
+  {     2,     12,      0, }, /* 180 */
+  {     2,     10,      0, }, /* 181 */
+  {     2,      7,      0, }, /* 182 */
+  {     2,     13,      0, }, /* 183 */
+  {     2,     23,      0, }, /* 184 */
+  {     2,     15,      0, }, /* 185 */
+  {     2,     26,      0, }, /* 186 */
+  {    21,     12,      0, }, /* 187 */
+  {    21,     10,      0, }, /* 188 */
+  {    21,      7,      0, }, /* 189 */
+  {    21,     13,      0, }, /* 190 */
+  {    20,     12,      0, }, /* 191 */
+  {    20,     10,      0, }, /* 192 */
+  {    20,      7,      0, }, /* 193 */
+  {    20,     13,      0, }, /* 194 */
+  {    20,     21,      0, }, /* 195 */
+  {    20,     23,      0, }, /* 196 */
+  {    43,     12,      0, }, /* 197 */
+  {    43,     10,      0, }, /* 198 */
+  {    43,      7,      0, }, /* 199 */
+  {    43,     13,      0, }, /* 200 */
+  {    43,     26,      0, }, /* 201 */
+  {    43,     15,      0, }, /* 202 */
+  {    53,     12,      0, }, /* 203 */
+  {    53,      7,      0, }, /* 204 */
+  {    53,     10,      0, }, /* 205 */
+  {    53,     13,      0, }, /* 206 */
+  {    53,     15,      0, }, /* 207 */
+  {    53,     26,      0, }, /* 208 */
+  {    53,     23,      0, }, /* 209 */
+  {    54,     10,      0, }, /* 210 */
+  {    54,      7,      0, }, /* 211 */
+  {    54,     12,      0, }, /* 212 */
+  {    54,     13,      0, }, /* 213 */
+  {    54,     15,      0, }, /* 214 */
+  {    54,     26,      0, }, /* 215 */
+  {    28,     10,      0, }, /* 216 */
+  {    28,      7,      0, }, /* 217 */
+  {    28,     12,      0, }, /* 218 */
+  {    28,     13,      0, }, /* 219 */
+  {    36,     10,      0, }, /* 220 */
+  {    36,      7,      0, }, /* 221 */
+  {    36,     12,      0, }, /* 222 */
+  {    36,     13,      0, }, /* 223 */
+  {    36,     15,      0, }, /* 224 */
+  {    36,     26,      0, }, /* 225 */
+  {    47,     10,      0, }, /* 226 */
+  {    47,      7,      0, }, /* 227 */
+  {    47,     12,      0, }, /* 228 */
+  {    47,     21,      0, }, /* 229 */
+  {    56,      7,      0, }, /* 230 */
+  {    56,     12,      0, }, /* 231 */
+  {    56,      6,      0, }, /* 232 */
+  {    56,     21,      0, }, /* 233 */
+  {    56,     13,      0, }, /* 234 */
+  {    32,      7,      0, }, /* 235 */
+  {    32,     12,      0, }, /* 236 */
+  {    32,      6,      0, }, /* 237 */
+  {    32,     13,      0, }, /* 238 */
+  {    57,      7,      0, }, /* 239 */
+  {    57,     26,      0, }, /* 240 */
+  {    57,     21,      0, }, /* 241 */
+  {    57,     12,      0, }, /* 242 */
+  {    57,     13,      0, }, /* 243 */
+  {    57,     15,      0, }, /* 244 */
+  {    57,     22,      0, }, /* 245 */
+  {    57,     18,      0, }, /* 246 */
+  {    57,     10,      0, }, /* 247 */
+  {    38,      7,      0, }, /* 248 */
+  {    38,     10,      0, }, /* 249 */
+  {    38,     12,      0, }, /* 250 */
+  {    38,     13,      0, }, /* 251 */
+  {    38,     21,      0, }, /* 252 */
+  {    38,     26,      0, }, /* 253 */
+  {    16,      9,   7264, }, /* 254 */
+  {    16,      7,      0, }, /* 255 */
+  {    16,      6,      0, }, /* 256 */
+  {    23,      7,      0, }, /* 257 */
+  {    15,      7,      0, }, /* 258 */
+  {    15,     12,      0, }, /* 259 */
+  {    15,     21,      0, }, /* 260 */
+  {    15,     15,      0, }, /* 261 */
+  {    15,     26,      0, }, /* 262 */
+  {     8,      7,      0, }, /* 263 */
+  {     7,     17,      0, }, /* 264 */
+  {     7,      7,      0, }, /* 265 */
+  {     7,     21,      0, }, /* 266 */
+  {    40,     29,      0, }, /* 267 */
+  {    40,      7,      0, }, /* 268 */
+  {    40,     22,      0, }, /* 269 */
+  {    40,     18,      0, }, /* 270 */
+  {    45,      7,      0, }, /* 271 */
+  {    45,     14,      0, }, /* 272 */
+  {    50,      7,      0, }, /* 273 */
+  {    50,     12,      0, }, /* 274 */
+  {    24,      7,      0, }, /* 275 */
+  {    24,     12,      0, }, /* 276 */
+  {     6,      7,      0, }, /* 277 */
+  {     6,     12,      0, }, /* 278 */
+  {    51,      7,      0, }, /* 279 */
+  {    51,     12,      0, }, /* 280 */
+  {    31,      7,      0, }, /* 281 */
+  {    31,     12,      0, }, /* 282 */
+  {    31,     10,      0, }, /* 283 */
+  {    31,     21,      0, }, /* 284 */
+  {    31,      6,      0, }, /* 285 */
+  {    31,     23,      0, }, /* 286 */
+  {    31,     13,      0, }, /* 287 */
+  {    31,     15,      0, }, /* 288 */
+  {    37,     21,      0, }, /* 289 */
+  {    37,     17,      0, }, /* 290 */
+  {    37,     12,      0, }, /* 291 */
+  {    37,     29,      0, }, /* 292 */
+  {    37,     13,      0, }, /* 293 */
+  {    37,      7,      0, }, /* 294 */
+  {    37,      6,      0, }, /* 295 */
+  {    34,      7,      0, }, /* 296 */
+  {    34,     12,      0, }, /* 297 */
+  {    34,     10,      0, }, /* 298 */
+  {    34,     26,      0, }, /* 299 */
+  {    34,     21,      0, }, /* 300 */
+  {    34,     13,      0, }, /* 301 */
+  {    52,      7,      0, }, /* 302 */
+  {    39,      7,      0, }, /* 303 */
+  {    39,     10,      0, }, /* 304 */
+  {    39,     13,      0, }, /* 305 */
+  {    39,     15,      0, }, /* 306 */
+  {    39,     26,      0, }, /* 307 */
+  {    31,     26,      0, }, /* 308 */
+  {     5,      7,      0, }, /* 309 */
+  {     5,     12,      0, }, /* 310 */
+  {     5,     10,      0, }, /* 311 */
+  {     5,     21,      0, }, /* 312 */
+  {    90,      7,      0, }, /* 313 */
+  {    90,     10,      0, }, /* 314 */
+  {    90,     12,      0, }, /* 315 */
+  {    90,     13,      0, }, /* 316 */
+  {    90,     21,      0, }, /* 317 */
+  {    90,      6,      0, }, /* 318 */
+  {    61,     12,      0, }, /* 319 */
+  {    61,     10,      0, }, /* 320 */
+  {    61,      7,      0, }, /* 321 */
+  {    61,     13,      0, }, /* 322 */
+  {    61,     21,      0, }, /* 323 */
+  {    61,     26,      0, }, /* 324 */
+  {    75,     12,      0, }, /* 325 */
+  {    75,     10,      0, }, /* 326 */
+  {    75,      7,      0, }, /* 327 */
+  {    75,     13,      0, }, /* 328 */
+  {    92,      7,      0, }, /* 329 */
+  {    92,     12,      0, }, /* 330 */
+  {    92,     10,      0, }, /* 331 */
+  {    92,     21,      0, }, /* 332 */
+  {    69,      7,      0, }, /* 333 */
+  {    69,     10,      0, }, /* 334 */
+  {    69,     12,      0, }, /* 335 */
+  {    69,     21,      0, }, /* 336 */
+  {    69,     13,      0, }, /* 337 */
+  {    72,     13,      0, }, /* 338 */
+  {    72,      7,      0, }, /* 339 */
+  {    72,      6,      0, }, /* 340 */
+  {    72,     21,      0, }, /* 341 */
+  {    75,     21,      0, }, /* 342 */
+  {     9,     10,      0, }, /* 343 */
+  {     9,      7,      0, }, /* 344 */
+  {    12,      5,      0, }, /* 345 */
+  {    12,      6,      0, }, /* 346 */
+  {    33,      5,  35332, }, /* 347 */
+  {    33,      5,   3814, }, /* 348 */
+  {    33,      5,    -59, }, /* 349 */
+  {    33,      9,  -7615, }, /* 350 */
+  {    19,      5,      8, }, /* 351 */
+  {    19,      9,     -8, }, /* 352 */
+  {    19,      5,     74, }, /* 353 */
+  {    19,      5,     86, }, /* 354 */
+  {    19,      5,    100, }, /* 355 */
+  {    19,      5,    128, }, /* 356 */
+  {    19,      5,    112, }, /* 357 */
+  {    19,      5,    126, }, /* 358 */
+  {    19,      8,     -8, }, /* 359 */
+  {    19,      5,      9, }, /* 360 */
+  {    19,      9,    -74, }, /* 361 */
+  {    19,      8,     -9, }, /* 362 */
+  {    19,      5,  -7205, }, /* 363 */
+  {    19,      9,    -86, }, /* 364 */
+  {    19,      9,   -100, }, /* 365 */
+  {    19,      9,   -112, }, /* 366 */
+  {    19,      9,   -128, }, /* 367 */
+  {    19,      9,   -126, }, /* 368 */
+  {    27,      1,      0, }, /* 369 */
+  {     9,     27,      0, }, /* 370 */
+  {     9,     28,      0, }, /* 371 */
+  {    27,     11,      0, }, /* 372 */
+  {     9,      9,      0, }, /* 373 */
+  {     9,      5,      0, }, /* 374 */
+  {    19,      9,  -7517, }, /* 375 */
+  {    33,      9,  -8383, }, /* 376 */
+  {    33,      9,  -8262, }, /* 377 */
+  {    33,      9,     28, }, /* 378 */
+  {    33,      5,    -28, }, /* 379 */
+  {    33,     14,     16, }, /* 380 */
+  {    33,     14,    -16, }, /* 381 */
+  {    33,     14,      0, }, /* 382 */
+  {     9,     26,     26, }, /* 383 */
+  {     9,     26,    -26, }, /* 384 */
+  {     4,     26,      0, }, /* 385 */
+  {    17,      9,     48, }, /* 386 */
+  {    17,      5,    -48, }, /* 387 */
+  {    33,      9, -10743, }, /* 388 */
+  {    33,      9,  -3814, }, /* 389 */
+  {    33,      9, -10727, }, /* 390 */
+  {    33,      5, -10795, }, /* 391 */
+  {    33,      5, -10792, }, /* 392 */
+  {    33,      9, -10780, }, /* 393 */
+  {    33,      9, -10749, }, /* 394 */
+  {    33,      9, -10783, }, /* 395 */
+  {    33,      9, -10782, }, /* 396 */
+  {    33,      9, -10815, }, /* 397 */
+  {    10,      5,      0, }, /* 398 */
+  {    10,     26,      0, }, /* 399 */
+  {    10,     12,      0, }, /* 400 */
+  {    10,     21,      0, }, /* 401 */
+  {    10,     15,      0, }, /* 402 */
+  {    16,      5,  -7264, }, /* 403 */
+  {    58,      7,      0, }, /* 404 */
+  {    58,      6,      0, }, /* 405 */
+  {    58,     21,      0, }, /* 406 */
+  {    58,     12,      0, }, /* 407 */
+  {    22,     26,      0, }, /* 408 */
+  {    22,      6,      0, }, /* 409 */
+  {    22,     14,      0, }, /* 410 */
+  {    23,     10,      0, }, /* 411 */
+  {    26,      7,      0, }, /* 412 */
+  {    26,      6,      0, }, /* 413 */
+  {    29,      7,      0, }, /* 414 */
+  {    29,      6,      0, }, /* 415 */
+  {     3,      7,      0, }, /* 416 */
+  {    23,     26,      0, }, /* 417 */
+  {    29,     26,      0, }, /* 418 */
+  {    22,      7,      0, }, /* 419 */
+  {    60,      7,      0, }, /* 420 */
+  {    60,      6,      0, }, /* 421 */
+  {    60,     26,      0, }, /* 422 */
+  {    85,      7,      0, }, /* 423 */
+  {    85,      6,      0, }, /* 424 */
+  {    85,     21,      0, }, /* 425 */
+  {    76,      7,      0, }, /* 426 */
+  {    76,      6,      0, }, /* 427 */
+  {    76,     21,      0, }, /* 428 */
+  {    76,     13,      0, }, /* 429 */
+  {    12,      7,      0, }, /* 430 */
+  {    12,     21,      0, }, /* 431 */
+  {    78,      7,      0, }, /* 432 */
+  {    78,     14,      0, }, /* 433 */
+  {    78,     12,      0, }, /* 434 */
+  {    78,     21,      0, }, /* 435 */
+  {    33,      9, -35332, }, /* 436 */
+  {    33,      9, -42280, }, /* 437 */
+  {    33,      9, -42308, }, /* 438 */
+  {    48,      7,      0, }, /* 439 */
+  {    48,     12,      0, }, /* 440 */
+  {    48,     10,      0, }, /* 441 */
+  {    48,     26,      0, }, /* 442 */
+  {    64,      7,      0, }, /* 443 */
+  {    64,     21,      0, }, /* 444 */
+  {    74,     10,      0, }, /* 445 */
+  {    74,      7,      0, }, /* 446 */
+  {    74,     12,      0, }, /* 447 */
+  {    74,     21,      0, }, /* 448 */
+  {    74,     13,      0, }, /* 449 */
+  {    68,     13,      0, }, /* 450 */
+  {    68,      7,      0, }, /* 451 */
+  {    68,     12,      0, }, /* 452 */
+  {    68,     21,      0, }, /* 453 */
+  {    73,      7,      0, }, /* 454 */
+  {    73,     12,      0, }, /* 455 */
+  {    73,     10,      0, }, /* 456 */
+  {    73,     21,      0, }, /* 457 */
+  {    83,     12,      0, }, /* 458 */
+  {    83,     10,      0, }, /* 459 */
+  {    83,      7,      0, }, /* 460 */
+  {    83,     21,      0, }, /* 461 */
+  {    83,      6,      0, }, /* 462 */
+  {    83,     13,      0, }, /* 463 */
+  {    67,      7,      0, }, /* 464 */
+  {    67,     12,      0, }, /* 465 */
+  {    67,     10,      0, }, /* 466 */
+  {    67,     13,      0, }, /* 467 */
+  {    67,     21,      0, }, /* 468 */
+  {    38,      6,      0, }, /* 469 */
+  {    91,      7,      0, }, /* 470 */
+  {    91,     12,      0, }, /* 471 */
+  {    91,      6,      0, }, /* 472 */
+  {    91,     21,      0, }, /* 473 */
+  {    86,      7,      0, }, /* 474 */
+  {    86,     10,      0, }, /* 475 */
+  {    86,     12,      0, }, /* 476 */
+  {    86,     21,      0, }, /* 477 */
+  {    86,      6,      0, }, /* 478 */
+  {    86,     13,      0, }, /* 479 */
+  {     9,      4,      0, }, /* 480 */
+  {     9,      3,      0, }, /* 481 */
+  {    25,     25,      0, }, /* 482 */
+  {     0,     24,      0, }, /* 483 */
+  {    35,      7,      0, }, /* 484 */
+  {    19,     14,      0, }, /* 485 */
+  {    19,     15,      0, }, /* 486 */
+  {    19,     26,      0, }, /* 487 */
+  {    70,      7,      0, }, /* 488 */
+  {    66,      7,      0, }, /* 489 */
+  {    41,      7,      0, }, /* 490 */
+  {    41,     15,      0, }, /* 491 */
+  {    18,      7,      0, }, /* 492 */
+  {    18,     14,      0, }, /* 493 */
+  {    59,      7,      0, }, /* 494 */
+  {    59,     21,      0, }, /* 495 */
+  {    42,      7,      0, }, /* 496 */
+  {    42,     21,      0, }, /* 497 */
+  {    42,     14,      0, }, /* 498 */
+  {    13,      9,     40, }, /* 499 */
+  {    13,      5,    -40, }, /* 500 */
+  {    46,      7,      0, }, /* 501 */
+  {    44,      7,      0, }, /* 502 */
+  {    44,     13,      0, }, /* 503 */
+  {    11,      7,      0, }, /* 504 */
+  {    80,      7,      0, }, /* 505 */
+  {    80,     21,      0, }, /* 506 */
+  {    80,     15,      0, }, /* 507 */
+  {    65,      7,      0, }, /* 508 */
+  {    65,     15,      0, }, /* 509 */
+  {    65,     21,      0, }, /* 510 */
+  {    71,      7,      0, }, /* 511 */
+  {    71,     21,      0, }, /* 512 */
+  {    97,      7,      0, }, /* 513 */
+  {    96,      7,      0, }, /* 514 */
+  {    30,      7,      0, }, /* 515 */
+  {    30,     12,      0, }, /* 516 */
+  {    30,     15,      0, }, /* 517 */
+  {    30,     21,      0, }, /* 518 */
+  {    87,      7,      0, }, /* 519 */
+  {    87,     15,      0, }, /* 520 */
+  {    87,     21,      0, }, /* 521 */
+  {    77,      7,      0, }, /* 522 */
+  {    77,     21,      0, }, /* 523 */
+  {    82,      7,      0, }, /* 524 */
+  {    82,     15,      0, }, /* 525 */
+  {    81,      7,      0, }, /* 526 */
+  {    81,     15,      0, }, /* 527 */
+  {    88,      7,      0, }, /* 528 */
+  {     0,     15,      0, }, /* 529 */
+  {    93,     10,      0, }, /* 530 */
+  {    93,     12,      0, }, /* 531 */
+  {    93,      7,      0, }, /* 532 */
+  {    93,     21,      0, }, /* 533 */
+  {    93,     15,      0, }, /* 534 */
+  {    93,     13,      0, }, /* 535 */
+  {    84,     12,      0, }, /* 536 */
+  {    84,     10,      0, }, /* 537 */
+  {    84,      7,      0, }, /* 538 */
+  {    84,     21,      0, }, /* 539 */
+  {    84,      1,      0, }, /* 540 */
+  {   100,      7,      0, }, /* 541 */
+  {   100,     13,      0, }, /* 542 */
+  {    95,     12,      0, }, /* 543 */
+  {    95,      7,      0, }, /* 544 */
+  {    95,     10,      0, }, /* 545 */
+  {    95,     13,      0, }, /* 546 */
+  {    95,     21,      0, }, /* 547 */
+  {    99,     12,      0, }, /* 548 */
+  {    99,     10,      0, }, /* 549 */
+  {    99,      7,      0, }, /* 550 */
+  {    99,     21,      0, }, /* 551 */
+  {    99,     13,      0, }, /* 552 */
+  {   101,      7,      0, }, /* 553 */
+  {   101,     12,      0, }, /* 554 */
+  {   101,     10,      0, }, /* 555 */
+  {   101,     13,      0, }, /* 556 */
+  {    62,      7,      0, }, /* 557 */
+  {    62,     14,      0, }, /* 558 */
+  {    62,     21,      0, }, /* 559 */
+  {    79,      7,      0, }, /* 560 */
+  {    98,      7,      0, }, /* 561 */
+  {    98,     10,      0, }, /* 562 */
+  {    98,     12,      0, }, /* 563 */
+  {    98,      6,      0, }, /* 564 */
+  {    19,     12,      0, }, /* 565 */
+  {    26,     26,      0, }, /* 566 */
+};
+
+const pcre_uint8 PRIV(ucd_stage1)[] = { /* 8704 bytes */
+  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, /* U+0000 */
+ 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* U+0800 */
+ 32, 33, 34, 34, 35, 36, 37, 38, 39, 40, 40, 40, 41, 42, 43, 44, /* U+1000 */
+ 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, /* U+1800 */
+ 61, 62, 63, 64, 65, 65, 66, 67, 68, 69, 70, 71, 72, 70, 73, 74, /* U+2000 */
+ 75, 75, 65, 76, 65, 65, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, /* U+2800 */
+ 87, 88, 89, 90, 91, 92, 93, 70, 94, 94, 94, 94, 94, 94, 94, 94, /* U+3000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+3800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+4000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 95, 94, 94, 94, 94, /* U+4800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+5000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+5800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+6000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+6800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+7000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+7800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+8000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+8800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+9000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 96, /* U+9800 */
+ 97, 98, 98, 98, 98, 98, 98, 98, 98, 99,100,100,101,102,103,104, /* U+A000 */
+105,106,107,108,109,110,111,112, 34, 34, 34, 34, 34, 34, 34, 34, /* U+A800 */
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, /* U+B000 */
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, /* U+B800 */
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, /* U+C000 */
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, /* U+C800 */
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,113, /* U+D000 */
+114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114, /* U+D800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+E000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+E800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F000 */
+115,115, 94, 94,116,117,118,119,120,120,121,122,123,124,125,126, /* U+F800 */
+127,128,129,130, 78,131,132,133,134,135, 78, 78, 78, 78, 78, 78, /* U+10000 */
+136, 78,137,138,139, 78,140, 78,141, 78, 78, 78,142, 78, 78, 78, /* U+10800 */
+143,144,145,146, 78, 78, 78, 78, 78, 78, 78, 78, 78,147, 78, 78, /* U+11000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+11800 */
+148,148,148,148,148,148,149, 78,150, 78, 78, 78, 78, 78, 78, 78, /* U+12000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+12800 */
+151,151,151,151,151,151,151,151,152, 78, 78, 78, 78, 78, 78, 78, /* U+13000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+13800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+14000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+14800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+15000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+15800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+16000 */
+153,153,153,153,154, 78, 78, 78, 78, 78, 78, 78, 78, 78,155,156, /* U+16800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+17000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+17800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+18000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+18800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+19000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+19800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1A000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1A800 */
+157, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1B000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1C800 */
+ 70,158,159,160,161, 78,162, 78,163,164,165,166,167,168,169,170, /* U+1D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78,171,172, 78, 78, /* U+1E800 */
+173,174,175,176,177, 78,178,179,180,181,182,183,184,185,186, 78, /* U+1F000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+1F800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+20000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+20800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+21000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+21800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+22000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+22800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+23000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+23800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+24000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+24800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+25000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+25800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+26000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+26800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+27000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+27800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+28000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+28800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+29000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+29800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,187, 94, 94, /* U+2A000 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, /* U+2A800 */
+ 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94,188, 94, /* U+2B000 */
+189, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2C800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2E800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2F000 */
+ 94, 94, 94, 94,189, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+2F800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+30000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+30800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+31000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+31800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+32000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+32800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+33000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+33800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+34000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+34800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+35000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+35800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+36000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+36800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+37000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+37800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+38000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+38800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+39000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+39800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3A000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3A800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3B000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3C800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3E800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3F000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+3F800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+40000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+40800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+41000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+41800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+42000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+42800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+43000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+43800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+44000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+44800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+45000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+45800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+46000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+46800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+47000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+47800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+48000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+48800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+49000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+49800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4A000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4A800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4B000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4C800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4E800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4F000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+4F800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+50000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+50800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+51000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+51800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+52000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+52800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+53000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+53800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+54000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+54800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+55000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+55800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+56000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+56800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+57000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+57800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+58000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+58800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+59000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+59800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5A000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5A800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5B000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5C800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5E800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5F000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+5F800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+60000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+60800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+61000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+61800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+62000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+62800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+63000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+63800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+64000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+64800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+65000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+65800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+66000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+66800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+67000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+67800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+68000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+68800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+69000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+69800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6A000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6A800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6B000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6C800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6E800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6F000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+6F800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+70000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+70800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+71000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+71800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+72000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+72800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+73000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+73800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+74000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+74800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+75000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+75800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+76000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+76800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+77000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+77800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+78000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+78800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+79000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+79800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7A000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7A800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7B000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7C800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7E800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7F000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+7F800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+80000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+80800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+81000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+81800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+82000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+82800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+83000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+83800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+84000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+84800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+85000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+85800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+86000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+86800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+87000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+87800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+88000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+88800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+89000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+89800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8A000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8A800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8B000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8C800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8E800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8F000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+8F800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+90000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+90800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+91000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+91800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+92000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+92800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+93000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+93800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+94000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+94800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+95000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+95800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+96000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+96800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+97000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+97800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+98000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+98800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+99000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+99800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9A000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9A800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9B000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9B800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9C000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9C800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9D000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9D800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9E000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9E800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9F000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+9F800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A0000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A0800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A1000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A1800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A2000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A2800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A3000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A3800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A4000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A4800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A5000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A5800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A6000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A6800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A7000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A7800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A8000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A8800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A9000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+A9800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AA000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AA800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AB000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AB800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AC000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AC800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AD000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AD800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AE000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AE800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AF000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+AF800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B0000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B0800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B1000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B1800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B2000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B2800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B3000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B3800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B4000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B4800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B5000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B5800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B6000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B6800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B7000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B7800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B8000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B8800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B9000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+B9800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BA000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BA800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BB000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BB800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BC000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BC800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BD000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BD800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BE000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BE800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BF000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+BF800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C0000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C0800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C1000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C1800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C2000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C2800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C3000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C3800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C4000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C4800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C5000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C5800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C6000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C6800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C7000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C7800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C8000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C8800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C9000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+C9800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CA000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CA800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CB000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CB800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CC000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CC800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CD000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CD800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CE000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CE800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CF000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+CF800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D0000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D0800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D1000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D1800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D2000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D2800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D3000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D3800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D4000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D4800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D5000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D5800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D6000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D6800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D7000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D7800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D8000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D8800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D9000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+D9800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DA000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DA800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DB000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DB800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DC000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DC800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DD000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DD800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DE000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DE800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DF000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+DF800 */
+190, 78,191,192, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E0000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E0800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E1000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E1800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E2000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E2800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E3000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E3800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E4000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E4800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E5000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E5800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E6000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E6800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E7000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E7800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E8000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E8800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E9000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+E9800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EA000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EA800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EB000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EB800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EC000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EC800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+ED000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+ED800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EE000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EE800 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EF000 */
+ 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, /* U+EF800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F0000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F0800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F1000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F1800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F2000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F2800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F3000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F3800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F4000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F4800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F5000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F5800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F6000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F6800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F7000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F7800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F8000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F8800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F9000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+F9800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FA000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FA800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FB000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FB800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FC000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FC800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FD000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FD800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FE000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FE800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+FF000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,193, /* U+FF800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+100000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+100800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+101000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+101800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+102000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+102800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+103000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+103800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+104000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+104800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+105000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+105800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+106000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+106800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+107000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+107800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+108000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+108800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+109000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+109800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10A000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10A800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10B000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10B800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10C000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10C800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10D000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10D800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10E000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10E800 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,115, /* U+10F000 */
+115,115,115,115,115,115,115,115,115,115,115,115,115,115,115,193, /* U+10F800 */
+};
+
+const pcre_uint16 PRIV(ucd_stage2)[] = { /* 49664 bytes, block = 128 */
+/* block 0 */
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  1,  2,  2,  2,  3,  2,  2,  2,  4,  5,  2,  6,  2,  7,  2,  2,
+  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  2,  2,  6,  6,  6,  2,
+  2,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
+  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  4,  2,  5, 10, 11,
+ 10, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,  4,  6,  5,  6,  0,
+
+/* block 1 */
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+  1,  2,  3,  3,  3,  3, 13,  2, 10, 13, 14, 15,  6, 16, 13, 10,
+ 13,  6, 17, 17, 10, 18,  2,  2, 10, 17, 14, 19, 17, 17, 17,  2,
+  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
+  9,  9,  9,  9,  9,  9,  9,  6,  9,  9,  9,  9,  9,  9,  9, 20,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+ 12, 12, 12, 12, 12, 12, 12,  6, 12, 12, 12, 12, 12, 12, 12, 21,
+
+/* block 2 */
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 24, 25, 22, 23, 22, 23, 22, 23, 20, 22, 23, 22, 23, 22, 23, 22,
+ 23, 22, 23, 22, 23, 22, 23, 22, 23, 20, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 26, 22, 23, 22, 23, 22, 23, 27,
+
+/* block 3 */
+ 28, 29, 22, 23, 22, 23, 30, 22, 23, 31, 31, 22, 23, 20, 32, 33,
+ 34, 22, 23, 31, 35, 36, 37, 38, 22, 23, 39, 20, 37, 40, 41, 42,
+ 22, 23, 22, 23, 22, 23, 43, 22, 23, 43, 20, 20, 22, 23, 43, 22,
+ 23, 44, 44, 22, 23, 22, 23, 45, 22, 23, 20, 14, 22, 23, 20, 46,
+ 14, 14, 14, 14, 47, 48, 49, 47, 48, 49, 47, 48, 49, 22, 23, 22,
+ 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 50, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 20, 47, 48, 49, 22, 23, 51, 52, 22, 23, 22, 23, 22, 23, 22, 23,
+
+/* block 4 */
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 53, 20, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 20, 20, 20, 20, 20, 20, 54, 22, 23, 55, 56, 57,
+ 57, 22, 23, 58, 59, 60, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 61, 62, 63, 64, 65, 20, 66, 66, 20, 67, 20, 68, 20, 20, 20, 20,
+ 66, 20, 20, 69, 20, 70, 71, 20, 72, 73, 20, 74, 20, 20, 20, 73,
+ 20, 75, 76, 20, 20, 77, 20, 20, 20, 20, 20, 20, 20, 78, 20, 20,
+
+/* block 5 */
+ 79, 20, 20, 79, 20, 20, 20, 20, 79, 80, 81, 81, 82, 20, 20, 20,
+ 20, 20, 83, 20, 14, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 84, 84, 84, 84, 84, 84, 84, 84, 84, 85, 85, 85, 85, 85, 85, 85,
+ 85, 85, 10, 10, 10, 10, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
+ 85, 85, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+ 84, 84, 84, 84, 84, 10, 10, 10, 10, 10, 86, 86, 85, 10, 85, 10,
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+
+/* block 6 */
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 88, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 89, 90, 89, 90, 85, 91, 89, 90, 92, 92, 93, 94, 94, 94,  2, 92,
+
+/* block 7 */
+ 92, 92, 92, 92, 91, 10, 95,  2, 96, 96, 96, 92, 97, 92, 98, 98,
+ 99,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,
+100,100, 92,100,100,100,100,100,100,100,100,100,101,102,102,102,
+ 99,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,
+103,103,104,103,103,103,103,103,103,103,103,103,105,106,106,107,
+108,109,110,110,110,111,112,113, 89, 90, 89, 90, 89, 90, 89, 90,
+ 89, 90,114,115,114,115,114,115,114,115,114,115,114,115,114,115,
+116,117,118, 99,119,120,121, 89, 90,122, 89, 90, 99,123,123,123,
+
+/* block 8 */
+124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,
+125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,
+125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,
+126,126,126,126,126,126,126,126,126,126,126,126,126,126,126,126,
+126,126,126,126,126,126,126,126,126,126,126,126,126,126,126,126,
+127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+
+/* block 9 */
+128,129,130,131,131, 87, 87,131,132,132,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+133,128,129,128,129,128,129,128,129,128,129,128,129,128,129,134,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+
+/* block 10 */
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,
+135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,
+135,135,135,135,135,135,135, 92, 92,136,137,137,137,137,137,137,
+ 92,138,138,138,138,138,138,138,138,138,138,138,138,138,138,138,
+138,138,138,138,138,138,138,138,138,138,138,138,138,138,138,138,
+
+/* block 11 */
+138,138,138,138,138,138,138,139, 92,  2,140, 92, 92, 92, 92,141,
+ 92,142,142,142,142,142,142,142,142,142,142,142,142,142,142,142,
+142,142,142,142,142,142,142,142,142,142,142,142,142,142,142,142,
+142,142,142,142,142,142,142,142,142,142,142,142,142,142,143,142,
+144,142,142,144,142,142,144,142, 92, 92, 92, 92, 92, 92, 92, 92,
+145,145,145,145,145,145,145,145,145,145,145,145,145,145,145,145,
+145,145,145,145,145,145,145,145,145,145,145, 92, 92, 92, 92, 92,
+145,145,145,144,144, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 12 */
+146,146,146,146,146, 92,147,147,147,148,148,149,  2,148,150,150,
+151,151,151,151,151,151,151,151,151,151,151,  2, 92, 92,148,  2,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+ 85,152,152,152,152,152,152,152,152,152,152, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87,151,151,151,151,151,151,151,151,151, 87,
+  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,148,148,148,148,152,152,
+ 87,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+
+/* block 13 */
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,148,152,151,151,151,151,151,151,151, 16,150,151,
+151,151,151,151,151,153,153,151,151,150,151,151,151,151,152,152,
+154,154,154,154,154,154,154,154,154,154,152,152,152,150,150,152,
+
+/* block 14 */
+155,155,155,155,155,155,155,155,155,155,155,155,155,155, 92,156,
+157,158,157,157,157,157,157,157,157,157,157,157,157,157,157,157,
+157,157,157,157,157,157,157,157,157,157,157,157,157,157,157,157,
+158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,
+158,158,158,158,158,158,158,158,158,158,158, 92, 92,157,157,157,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+
+/* block 15 */
+159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,
+159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,
+159,159,159,159,159,159,160,160,160,160,160,160,160,160,160,160,
+160,159, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+161,161,161,161,161,161,161,161,161,161,162,162,162,162,162,162,
+162,162,162,162,162,162,162,162,162,162,162,162,162,162,162,162,
+162,162,162,162,162,162,162,162,162,162,162,163,163,163,163,163,
+163,163,163,163,164,164,165,166,166,166,164, 92, 92, 92, 92, 92,
+
+/* block 16 */
+167,167,167,167,167,167,167,167,167,167,167,167,167,167,167,167,
+167,167,167,167,167,167,168,168,168,168,169,168,168,168,168,168,
+168,168,168,168,169,168,168,168,169,168,168,168,168,168, 92, 92,
+170,170,170,170,170,170,170,170,170,170,170,170,170,170,170, 92,
+171,171,171,171,171,171,171,171,171,171,171,171,171,171,171,171,
+171,171,171,171,171,171,171,171,171,172,172,172, 92, 92,173, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 17 */
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+152, 92,152,152,152,152,152,152,152,152,152,152,152, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92,151,151,151,151,151,151,151,151,151,151,151,151,
+151,151,151,151,151,151,151,151,151,151,151,151,151,151,151, 92,
+
+/* block 18 */
+174,174,174,175,176,176,176,176,176,176,176,176,176,176,176,176,
+176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,
+176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,
+176,176,176,176,176,176,176,176,176,176,174,175,174,176,175,175,
+175,174,174,174,174,174,174,174,174,175,175,175,175,174,175,175,
+176, 87, 87,174,174,174,174,174,176,176,176,176,176,176,176,176,
+176,176,174,174,  2,  2,177,177,177,177,177,177,177,177,177,177,
+178,179,176,176,176,176,176,176, 92,176,176,176,176,176,176,176,
+
+/* block 19 */
+ 92,180,181,181, 92,182,182,182,182,182,182,182,182, 92, 92,182,
+182, 92, 92,182,182,182,182,182,182,182,182,182,182,182,182,182,
+182,182,182,182,182,182,182,182,182, 92,182,182,182,182,182,182,
+182, 92,182, 92, 92, 92,182,182,182,182, 92, 92,180,182,181,181,
+181,180,180,180,180, 92, 92,181,181, 92, 92,181,181,180,182, 92,
+ 92, 92, 92, 92, 92, 92, 92,181, 92, 92, 92, 92,182,182, 92,182,
+182,182,180,180, 92, 92,183,183,183,183,183,183,183,183,183,183,
+182,182,184,184,185,185,185,185,185,185,186,184, 92, 92, 92, 92,
+
+/* block 20 */
+ 92,187,187,188, 92,189,189,189,189,189,189, 92, 92, 92, 92,189,
+189, 92, 92,189,189,189,189,189,189,189,189,189,189,189,189,189,
+189,189,189,189,189,189,189,189,189, 92,189,189,189,189,189,189,
+189, 92,189,189, 92,189,189, 92,189,189, 92, 92,187, 92,188,188,
+188,187,187, 92, 92, 92, 92,187,187, 92, 92,187,187,187, 92, 92,
+ 92,187, 92, 92, 92, 92, 92, 92, 92,189,189,189,189, 92,189, 92,
+ 92, 92, 92, 92, 92, 92,190,190,190,190,190,190,190,190,190,190,
+187,187,189,189,189,187, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 21 */
+ 92,191,191,192, 92,193,193,193,193,193,193,193,193,193, 92,193,
+193,193, 92,193,193,193,193,193,193,193,193,193,193,193,193,193,
+193,193,193,193,193,193,193,193,193, 92,193,193,193,193,193,193,
+193, 92,193,193, 92,193,193,193,193,193, 92, 92,191,193,192,192,
+192,191,191,191,191,191, 92,191,191,192, 92,192,192,191, 92, 92,
+193, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+193,193,191,191, 92, 92,194,194,194,194,194,194,194,194,194,194,
+195,196, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 22 */
+ 92,197,198,198, 92,199,199,199,199,199,199,199,199, 92, 92,199,
+199, 92, 92,199,199,199,199,199,199,199,199,199,199,199,199,199,
+199,199,199,199,199,199,199,199,199, 92,199,199,199,199,199,199,
+199, 92,199,199, 92,199,199,199,199,199, 92, 92,197,199,198,197,
+198,197,197,197,197, 92, 92,198,198, 92, 92,198,198,197, 92, 92,
+ 92, 92, 92, 92, 92, 92,197,198, 92, 92, 92, 92,199,199, 92,199,
+199,199,197,197, 92, 92,200,200,200,200,200,200,200,200,200,200,
+201,199,202,202,202,202,202,202, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 23 */
+ 92, 92,203,204, 92,204,204,204,204,204,204, 92, 92, 92,204,204,
+204, 92,204,204,204,204, 92, 92, 92,204,204, 92,204, 92,204,204,
+ 92, 92, 92,204,204, 92, 92, 92,204,204,204, 92, 92, 92,204,204,
+204,204,204,204,204,204,204,204,204,204, 92, 92, 92, 92,205,205,
+203,205,205, 92, 92, 92,205,205,205, 92,205,205,205,203, 92, 92,
+204, 92, 92, 92, 92, 92, 92,205, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92,206,206,206,206,206,206,206,206,206,206,
+207,207,207,208,208,208,208,208,208,209,208, 92, 92, 92, 92, 92,
+
+/* block 24 */
+ 92,210,210,210, 92,211,211,211,211,211,211,211,211, 92,211,211,
+211, 92,211,211,211,211,211,211,211,211,211,211,211,211,211,211,
+211,211,211,211,211,211,211,211,211, 92,211,211,211,211,211,211,
+211,211,211,211, 92,211,211,211,211,211, 92, 92, 92,211,212,212,
+212,210,210,210,210, 92,212,212,212, 92,212,212,212,212, 92, 92,
+ 92, 92, 92, 92, 92,212,212, 92,211,211, 92, 92, 92, 92, 92, 92,
+211,211,212,212, 92, 92,213,213,213,213,213,213,213,213,213,213,
+ 92, 92, 92, 92, 92, 92, 92, 92,214,214,214,214,214,214,214,215,
+
+/* block 25 */
+ 92, 92,216,216, 92,217,217,217,217,217,217,217,217, 92,217,217,
+217, 92,217,217,217,217,217,217,217,217,217,217,217,217,217,217,
+217,217,217,217,217,217,217,217,217, 92,217,217,217,217,217,217,
+217,217,217,217, 92,217,217,217,217,217, 92, 92,218,217,216,218,
+216,216,216,216,216, 92,218,216,216, 92,216,216,218,218, 92, 92,
+ 92, 92, 92, 92, 92,216,216, 92, 92, 92, 92, 92, 92, 92,217, 92,
+217,217,218,218, 92, 92,219,219,219,219,219,219,219,219,219,219,
+ 92,217,217, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 26 */
+ 92, 92,220,220, 92,221,221,221,221,221,221,221,221, 92,221,221,
+221, 92,221,221,221,221,221,221,221,221,221,221,221,221,221,221,
+221,221,221,221,221,221,221,221,221,221,221,221,221,221,221,221,
+221,221,221,221,221,221,221,221,221,221,221, 92, 92,221,220,220,
+220,222,222,222,222, 92,220,220,220, 92,220,220,220,222,221, 92,
+ 92, 92, 92, 92, 92, 92, 92,220, 92, 92, 92, 92, 92, 92, 92, 92,
+221,221,222,222, 92, 92,223,223,223,223,223,223,223,223,223,223,
+224,224,224,224,224,224, 92, 92, 92,225,221,221,221,221,221,221,
+
+/* block 27 */
+ 92, 92,226,226, 92,227,227,227,227,227,227,227,227,227,227,227,
+227,227,227,227,227,227,227, 92, 92, 92,227,227,227,227,227,227,
+227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,227,
+227,227, 92,227,227,227,227,227,227,227,227,227, 92,227, 92, 92,
+227,227,227,227,227,227,227, 92, 92, 92,228, 92, 92, 92, 92,226,
+226,226,228,228,228, 92,228, 92,226,226,226,226,226,226,226,226,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92,226,226,229, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 28 */
+ 92,230,230,230,230,230,230,230,230,230,230,230,230,230,230,230,
+230,230,230,230,230,230,230,230,230,230,230,230,230,230,230,230,
+230,230,230,230,230,230,230,230,230,230,230,230,230,230,230,230,
+230,231,230,230,231,231,231,231,231,231,231, 92, 92, 92, 92,  3,
+230,230,230,230,230,230,232,231,231,231,231,231,231,231,231,233,
+234,234,234,234,234,234,234,234,234,234,233,233, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 29 */
+ 92,235,235, 92,235, 92, 92,235,235, 92,235, 92, 92,235, 92, 92,
+ 92, 92, 92, 92,235,235,235,235, 92,235,235,235,235,235,235,235,
+ 92,235,235,235, 92,235, 92,235, 92, 92,235,235, 92,235,235,235,
+235,236,235,235,236,236,236,236,236,236, 92,236,236,235, 92, 92,
+235,235,235,235,235, 92,237, 92,236,236,236,236,236,236, 92, 92,
+238,238,238,238,238,238,238,238,238,238, 92, 92,235,235,235,235,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 30 */
+239,240,240,240,241,241,241,241,241,241,241,241,241,241,241,241,
+241,241,241,240,241,240,240,240,242,242,240,240,240,240,240,240,
+243,243,243,243,243,243,243,243,243,243,244,244,244,244,244,244,
+244,244,244,244,240,242,240,242,240,242,245,246,245,246,247,247,
+239,239,239,239,239,239,239,239, 92,239,239,239,239,239,239,239,
+239,239,239,239,239,239,239,239,239,239,239,239,239,239,239,239,
+239,239,239,239,239,239,239,239,239,239,239,239,239, 92, 92, 92,
+ 92,242,242,242,242,242,242,242,242,242,242,242,242,242,242,247,
+
+/* block 31 */
+242,242,242,242,242,241,242,242,239,239,239,239,239,242,242,242,
+242,242,242,242,242,242,242,242, 92,242,242,242,242,242,242,242,
+242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,242,
+242,242,242,242,242,242,242,242,242,242,242,242,242, 92,240,240,
+240,240,240,240,240,240,242,240,240,240,240,240,240, 92,240,240,
+241,241,241,241,241, 13, 13, 13, 13,241,241, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 32 */
+248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,
+248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,
+248,248,248,248,248,248,248,248,248,248,248,249,249,250,250,250,
+250,249,250,250,250,250,250,250,249,250,250,249,249,250,250,248,
+251,251,251,251,251,251,251,251,251,251,252,252,252,252,252,252,
+248,248,248,248,248,248,249,249,250,250,248,248,248,248,250,250,
+250,248,249,249,249,248,248,249,249,249,249,249,249,249,248,248,
+248,250,250,250,250,248,248,248,248,248,248,248,248,248,248,248,
+
+/* block 33 */
+248,248,250,249,249,250,250,249,249,249,249,249,249,250,248,249,
+251,251,251,251,251,251,251,251,251,251,249,249,249,250,253,253,
+254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,
+254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,254,
+254,254,254,254,254,254, 92,254, 92, 92, 92, 92, 92,254, 92, 92,
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+255,255,255,255,255,255,255,255,255,255,255,  2,256,255,255,255,
+
+/* block 34 */
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+
+/* block 35 */
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258, 92,258,258,258,258, 92, 92,
+258,258,258,258,258,258,258, 92,258, 92,258,258,258,258, 92, 92,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+
+/* block 36 */
+258,258,258,258,258,258,258,258,258, 92,258,258,258,258, 92, 92,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258, 92,258,258,258,258, 92, 92,258,258,258,258,258,258,258, 92,
+258, 92,258,258,258,258, 92, 92,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258, 92,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+
+/* block 37 */
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258, 92,258,258,258,258, 92, 92,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258,258,258,258,258, 92, 92,259,259,259,
+260,260,260,260,260,260,260,260,260,261,261,261,261,261,261,261,
+261,261,261,261,261,261,261,261,261,261,261,261,261, 92, 92, 92,
+
+/* block 38 */
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+262,262,262,262,262,262,262,262,262,262, 92, 92, 92, 92, 92, 92,
+263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,
+263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,
+263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,
+263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,
+263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,263,
+263,263,263,263,263, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 39 */
+264,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+
+/* block 40 */
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+
+/* block 41 */
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,266,266,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+
+/* block 42 */
+267,268,268,268,268,268,268,268,268,268,268,268,268,268,268,268,
+268,268,268,268,268,268,268,268,268,268,268,269,270, 92, 92, 92,
+271,271,271,271,271,271,271,271,271,271,271,271,271,271,271,271,
+271,271,271,271,271,271,271,271,271,271,271,271,271,271,271,271,
+271,271,271,271,271,271,271,271,271,271,271,271,271,271,271,271,
+271,271,271,271,271,271,271,271,271,271,271,271,271,271,271,271,
+271,271,271,271,271,271,271,271,271,271,271,  2,  2,  2,272,272,
+272, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 43 */
+273,273,273,273,273,273,273,273,273,273,273,273,273, 92,273,273,
+273,273,274,274,274, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+275,275,275,275,275,275,275,275,275,275,275,275,275,275,275,275,
+275,275,276,276,276,  2,  2, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+277,277,277,277,277,277,277,277,277,277,277,277,277,277,277,277,
+277,277,278,278, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+279,279,279,279,279,279,279,279,279,279,279,279,279, 92,279,279,
+279, 92,280,280, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 44 */
+281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,
+281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,
+281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,
+281,281,281,281,282,282,283,282,282,282,282,282,282,282,283,283,
+283,283,283,283,283,283,282,283,283,282,282,282,282,282,282,282,
+282,282,282,282,284,284,284,285,284,284,284,286,281,282, 92, 92,
+287,287,287,287,287,287,287,287,287,287, 92, 92, 92, 92, 92, 92,
+288,288,288,288,288,288,288,288,288,288, 92, 92, 92, 92, 92, 92,
+
+/* block 45 */
+289,289,  2,  2,289,  2,290,289,289,289,289,291,291,291,292, 92,
+293,293,293,293,293,293,293,293,293,293, 92, 92, 92, 92, 92, 92,
+294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,
+294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,
+294,294,294,295,294,294,294,294,294,294,294,294,294,294,294,294,
+294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,
+294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,
+294,294,294,294,294,294,294,294, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 46 */
+294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,
+294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,294,
+294,294,294,294,294,294,294,294,294,291,294, 92, 92, 92, 92, 92,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,265,
+265,265,265,265,265,265, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 47 */
+296,296,296,296,296,296,296,296,296,296,296,296,296,296,296,296,
+296,296,296,296,296,296,296,296,296,296,296,296,296, 92, 92, 92,
+297,297,297,298,298,298,298,297,297,298,298,298, 92, 92, 92, 92,
+298,298,297,298,298,298,298,298,298,297,297,297, 92, 92, 92, 92,
+299, 92, 92, 92,300,300,301,301,301,301,301,301,301,301,301,301,
+302,302,302,302,302,302,302,302,302,302,302,302,302,302,302,302,
+302,302,302,302,302,302,302,302,302,302,302,302,302,302, 92, 92,
+302,302,302,302,302, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 48 */
+303,303,303,303,303,303,303,303,303,303,303,303,303,303,303,303,
+303,303,303,303,303,303,303,303,303,303,303,303,303,303,303,303,
+303,303,303,303,303,303,303,303,303,303,303,303, 92, 92, 92, 92,
+304,304,304,304,304,304,304,304,304,304,304,304,304,304,304,304,
+304,303,303,303,303,303,303,303,304,304, 92, 92, 92, 92, 92, 92,
+305,305,305,305,305,305,305,305,305,305,306, 92, 92, 92,307,307,
+308,308,308,308,308,308,308,308,308,308,308,308,308,308,308,308,
+308,308,308,308,308,308,308,308,308,308,308,308,308,308,308,308,
+
+/* block 49 */
+309,309,309,309,309,309,309,309,309,309,309,309,309,309,309,309,
+309,309,309,309,309,309,309,310,310,311,311,311, 92, 92,312,312,
+313,313,313,313,313,313,313,313,313,313,313,313,313,313,313,313,
+313,313,313,313,313,313,313,313,313,313,313,313,313,313,313,313,
+313,313,313,313,313,313,313,313,313,313,313,313,313,313,313,313,
+313,313,313,313,313,314,315,314,315,315,315,315,315,315,315, 92,
+315,314,315,314,314,315,315,315,315,315,315,315,315,314,314,314,
+314,314,314,315,315,315,315,315,315,315,315,315,315, 92, 92,315,
+
+/* block 50 */
+316,316,316,316,316,316,316,316,316,316, 92, 92, 92, 92, 92, 92,
+316,316,316,316,316,316,316,316,316,316, 92, 92, 92, 92, 92, 92,
+317,317,317,317,317,317,317,318,317,317,317,317,317,317, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 51 */
+319,319,319,319,320,321,321,321,321,321,321,321,321,321,321,321,
+321,321,321,321,321,321,321,321,321,321,321,321,321,321,321,321,
+321,321,321,321,321,321,321,321,321,321,321,321,321,321,321,321,
+321,321,321,321,319,320,319,319,319,319,319,320,319,320,320,320,
+320,320,319,320,320,321,321,321,321,321,321,321, 92, 92, 92, 92,
+322,322,322,322,322,322,322,322,322,322,323,323,323,323,323,323,
+323,324,324,324,324,324,324,324,324,324,324,319,319,319,319,319,
+319,319,319,319,324,324,324,324,324,324,324,324,324, 92, 92, 92,
+
+/* block 52 */
+325,325,326,327,327,327,327,327,327,327,327,327,327,327,327,327,
+327,327,327,327,327,327,327,327,327,327,327,327,327,327,327,327,
+327,326,325,325,325,325,326,326,325,325,326,325,326,326,327,327,
+328,328,328,328,328,328,328,328,328,328,327,327,327,327,327,327,
+329,329,329,329,329,329,329,329,329,329,329,329,329,329,329,329,
+329,329,329,329,329,329,329,329,329,329,329,329,329,329,329,329,
+329,329,329,329,329,329,330,331,330,330,331,331,331,330,331,330,
+330,330,331,331, 92, 92, 92, 92, 92, 92, 92, 92,332,332,332,332,
+
+/* block 53 */
+333,333,333,333,333,333,333,333,333,333,333,333,333,333,333,333,
+333,333,333,333,333,333,333,333,333,333,333,333,333,333,333,333,
+333,333,333,333,334,334,334,334,334,334,334,334,335,335,335,335,
+335,335,335,335,334,334,335,335, 92, 92, 92,336,336,336,336,336,
+337,337,337,337,337,337,337,337,337,337, 92, 92, 92,333,333,333,
+338,338,338,338,338,338,338,338,338,338,339,339,339,339,339,339,
+339,339,339,339,339,339,339,339,339,339,339,339,339,339,339,339,
+339,339,339,339,339,339,339,339,340,340,340,340,340,340,341,341,
+
+/* block 54 */
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+342,342,342,342,342,342,342,342, 92, 92, 92, 92, 92, 92, 92, 92,
+ 87, 87, 87,  2, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87,343, 87, 87, 87, 87, 87, 87, 87,344,344,344,344, 87,344,344,
+344,344,343,343, 87,344,344, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 55 */
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 99, 99, 99, 99, 99,345, 84, 84, 84, 84,
+ 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84,
+ 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84,
+ 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 93, 93, 93,
+ 93, 93, 84, 84, 84, 84, 93, 93, 93, 93, 93, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20,346,347, 20, 20, 20,348, 20, 20,
+
+/* block 56 */
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+ 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 84, 84, 84, 84, 84,
+ 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84,
+ 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 93,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 87, 87, 87, 87,
+
+/* block 57 */
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+
+/* block 58 */
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 20, 20, 20, 20, 20,349, 20, 20,350, 20,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+
+/* block 59 */
+351,351,351,351,351,351,351,351,352,352,352,352,352,352,352,352,
+351,351,351,351,351,351, 92, 92,352,352,352,352,352,352, 92, 92,
+351,351,351,351,351,351,351,351,352,352,352,352,352,352,352,352,
+351,351,351,351,351,351,351,351,352,352,352,352,352,352,352,352,
+351,351,351,351,351,351, 92, 92,352,352,352,352,352,352, 92, 92,
+ 99,351, 99,351, 99,351, 99,351, 92,352, 92,352, 92,352, 92,352,
+351,351,351,351,351,351,351,351,352,352,352,352,352,352,352,352,
+353,353,354,354,354,354,355,355,356,356,357,357,358,358, 92, 92,
+
+/* block 60 */
+351,351,351,351,351,351,351,351,359,359,359,359,359,359,359,359,
+351,351,351,351,351,351,351,351,359,359,359,359,359,359,359,359,
+351,351,351,351,351,351,351,351,359,359,359,359,359,359,359,359,
+351,351, 99,360, 99, 92, 99, 99,352,352,361,361,362, 91,363, 91,
+ 91, 91, 99,360, 99, 92, 99, 99,364,364,364,364,362, 91, 91, 91,
+351,351, 99, 99, 92, 92, 99, 99,352,352,365,365, 92, 91, 91, 91,
+351,351, 99, 99, 99,118, 99, 99,352,352,366,366,122, 91, 91, 91,
+ 92, 92, 99,360, 99, 92, 99, 99,367,367,368,368,362, 91, 91, 92,
+
+/* block 61 */
+  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1, 16,369,369, 16, 16,
+  7,  7,  7,  7,  7,  7,  2,  2, 15, 19,  4, 15, 15, 19,  4, 15,
+  2,  2,  2,  2,  2,  2,  2,  2,370,371, 16, 16, 16, 16, 16,  1,
+  2,  2,  2,  2,  2,  2,  2,  2,  2, 15, 19,  2,  2,  2,  2, 11,
+ 11,  2,  2,  2,  6,  4,  5,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+  2,  2,  6,  2, 11,  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  1,
+ 16, 16, 16, 16, 16, 92, 92, 92, 92, 92, 16, 16, 16, 16, 16, 16,
+ 17, 84, 92, 92, 17, 17, 17, 17, 17, 17,  6,  6,  6,  4,  5, 84,
+
+/* block 62 */
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,  6,  6,  6,  4,  5, 92,
+ 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 92, 92, 92,
+  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,  3,
+  3,  3,  3,  3,  3,  3,  3,  3,  3,  3, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,372,372,372,
+372, 87,372,372,372, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 63 */
+ 13, 13,373, 13, 13, 13, 13,373, 13, 13,374,373,373,373,374,374,
+373,373,373,374, 13,373, 13, 13,  6,373,373,373,373,373, 13, 13,
+ 13, 13, 13, 13,373, 13,375, 13,373, 13,376,377,373,373, 13,374,
+373,373,378,373,374,344,344,344,344,374, 13, 13,374,374,373,373,
+  6,  6,  6,  6,  6,373,374,374,374,374, 13,  6, 13, 13,379, 13,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+380,380,380,380,380,380,380,380,380,380,380,380,380,380,380,380,
+381,381,381,381,381,381,381,381,381,381,381,381,381,381,381,381,
+
+/* block 64 */
+382,382,382, 22, 23,382,382,382,382, 17, 92, 92, 92, 92, 92, 92,
+  6,  6,  6,  6,  6, 13, 13, 13, 13, 13,  6,  6, 13, 13, 13, 13,
+  6, 13, 13,  6, 13, 13,  6, 13, 13, 13, 13, 13, 13, 13,  6, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,  6,  6,
+ 13, 13,  6, 13,  6, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+
+/* block 65 */
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+
+/* block 66 */
+ 13, 13, 13, 13, 13, 13, 13, 13,  6,  6,  6,  6, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+  6,  6, 13, 13, 13, 13, 13, 13, 13,  4,  5, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,  6, 13, 13, 13,
+
+/* block 67 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,  6,  6,  6,  6,
+  6,  6, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 68 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+
+/* block 69 */
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13,383,383,383,383,383,383,383,383,383,383,
+383,383,383,383,383,383,383,383,383,383,383,383,383,383,383,383,
+384,384,384,384,384,384,384,384,384,384,384,384,384,384,384,384,
+384,384,384,384,384,384,384,384,384,384, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+
+/* block 70 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+
+/* block 71 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13,  6, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13,  6, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13,  6,  6,  6,  6,  6,  6,  6,  6,
+
+/* block 72 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,  6,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+
+/* block 73 */
+ 92, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13,  4,  5,  4,  5,  4,  5,  4,  5,
+  4,  5,  4,  5,  4,  5, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+
+/* block 74 */
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+  6,  6,  6,  6,  6,  4,  5,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  4,  5,  4,  5,  4,  5,  4,  5,  4,  5,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+
+/* block 75 */
+385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,
+385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,
+385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,
+385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,
+385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,
+385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,
+385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,
+385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,385,
+
+/* block 76 */
+  6,  6,  6,  4,  5,  4,  5,  4,  5,  4,  5,  4,  5,  4,  5,  4,
+  5,  4,  5,  4,  5,  4,  5,  4,  5,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  4,  5,  4,  5,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  4,  5,  6,  6,
+
+/* block 77 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,  6,
+  6,  6,  6,  6,  6, 13, 13,  6,  6,  6,  6,  6,  6, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 78 */
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 79 */
+386,386,386,386,386,386,386,386,386,386,386,386,386,386,386,386,
+386,386,386,386,386,386,386,386,386,386,386,386,386,386,386,386,
+386,386,386,386,386,386,386,386,386,386,386,386,386,386,386, 92,
+387,387,387,387,387,387,387,387,387,387,387,387,387,387,387,387,
+387,387,387,387,387,387,387,387,387,387,387,387,387,387,387,387,
+387,387,387,387,387,387,387,387,387,387,387,387,387,387,387, 92,
+ 22, 23,388,389,390,391,392, 22, 23, 22, 23, 22, 23,393,394,395,
+396, 20, 22, 23, 20, 22, 23, 20, 20, 20, 20, 20, 84, 84,397,397,
+
+/* block 80 */
+114,115,114,115,114,115,114,115,114,115,114,115,114,115,114,115,
+114,115,114,115,114,115,114,115,114,115,114,115,114,115,114,115,
+114,115,114,115,114,115,114,115,114,115,114,115,114,115,114,115,
+114,115,114,115,114,115,114,115,114,115,114,115,114,115,114,115,
+114,115,114,115,114,115,114,115,114,115,114,115,114,115,114,115,
+114,115,114,115,114,115,114,115,114,115,114,115,114,115,114,115,
+114,115,114,115,398,399,399,399,399,399,399,114,115,114,115,400,
+400,400,114,115, 92, 92, 92, 92, 92,401,401,401,401,402,401,401,
+
+/* block 81 */
+403,403,403,403,403,403,403,403,403,403,403,403,403,403,403,403,
+403,403,403,403,403,403,403,403,403,403,403,403,403,403,403,403,
+403,403,403,403,403,403, 92,403, 92, 92, 92, 92, 92,403, 92, 92,
+404,404,404,404,404,404,404,404,404,404,404,404,404,404,404,404,
+404,404,404,404,404,404,404,404,404,404,404,404,404,404,404,404,
+404,404,404,404,404,404,404,404,404,404,404,404,404,404,404,404,
+404,404,404,404,404,404,404,404, 92, 92, 92, 92, 92, 92, 92,405,
+406, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,407,
+
+/* block 82 */
+258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,258,
+258,258,258,258,258,258,258, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+258,258,258,258,258,258,258, 92,258,258,258,258,258,258,258, 92,
+258,258,258,258,258,258,258, 92,258,258,258,258,258,258,258, 92,
+258,258,258,258,258,258,258, 92,258,258,258,258,258,258,258, 92,
+258,258,258,258,258,258,258, 92,258,258,258,258,258,258,258, 92,
+131,131,131,131,131,131,131,131,131,131,131,131,131,131,131,131,
+131,131,131,131,131,131,131,131,131,131,131,131,131,131,131,131,
+
+/* block 83 */
+  2,  2, 15, 19, 15, 19,  2,  2,  2, 15, 19,  2, 15, 19,  2,  2,
+  2,  2,  2,  2,  2,  2,  2,  7,  2,  2,  7,  2, 15, 19,  2,  2,
+ 15, 19,  4,  5,  4,  5,  4,  5,  4,  5,  2,  2,  2,  2,  2, 85,
+  2,  2,  2,  2,  2,  2,  2,  2,  2,  2,  7,  7, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 84 */
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408, 92,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 85 */
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+
+/* block 86 */
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,408,
+408,408,408,408,408,408, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92,
+
+/* block 87 */
+  1,  2,  2,  2, 13,409,344,410,  4,  5,  4,  5,  4,  5,  4,  5,
+  4,  5, 13, 13,  4,  5,  4,  5,  4,  5,  4,  5,  7,  4,  5,  5,
+ 13,410,410,410,410,410,410,410,410,410, 87, 87, 87, 87,411,411,
+  7, 85, 85, 85, 85, 85, 13, 13,410,410,410,409,344,  2, 13, 13,
+ 92,412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,
+412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,
+412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,
+412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,
+
+/* block 88 */
+412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,412,
+412,412,412,412,412,412,412, 92, 92, 87, 87, 10, 10,413,413,412,
+  7,414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,
+414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,
+414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,
+414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,
+414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,
+414,414,414,414,414,414,414,414,414,414,414,  2, 85,415,415,414,
+
+/* block 89 */
+ 92, 92, 92, 92, 92,416,416,416,416,416,416,416,416,416,416,416,
+416,416,416,416,416,416,416,416,416,416,416,416,416,416,416,416,
+416,416,416,416,416,416,416,416,416,416,416,416,416,416, 92, 92,
+ 92,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+
+/* block 90 */
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257, 92,
+ 13, 13, 17, 17, 17, 17, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+416,416,416,416,416,416,416,416,416,416,416,416,416,416,416,416,
+416,416,416,416,416,416,416,416,416,416,416, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,
+
+/* block 91 */
+417,417,417,417,417,417,417,417,417,417,417,417,417,417,417,417,
+417,417,417,417,417,417,417,417,417,417,417,417,417,417,417, 92,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 17, 17, 17, 17, 17, 17, 17, 17,
+ 13, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+417,417,417,417,417,417,417,417,417,417,417,417,417,417,417,417,
+417,417,417,417,417,417,417,417,417,417,417,417,417,417,417, 13,
+
+/* block 92 */
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,
+418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,
+418,418,418,418,418,418,418,418,418,418,418,418,418,418,418, 92,
+
+/* block 93 */
+418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,
+418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,
+418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,
+418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,
+418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,418,
+418,418,418,418,418,418,418,418, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+
+/* block 94 */
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+
+/* block 95 */
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+
+/* block 96 */
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 97 */
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,421,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+
+/* block 98 */
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,420,
+
+/* block 99 */
+420,420,420,420,420,420,420,420,420,420,420,420,420, 92, 92, 92,
+422,422,422,422,422,422,422,422,422,422,422,422,422,422,422,422,
+422,422,422,422,422,422,422,422,422,422,422,422,422,422,422,422,
+422,422,422,422,422,422,422,422,422,422,422,422,422,422,422,422,
+422,422,422,422,422,422,422, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+423,423,423,423,423,423,423,423,423,423,423,423,423,423,423,423,
+423,423,423,423,423,423,423,423,423,423,423,423,423,423,423,423,
+423,423,423,423,423,423,423,423,424,424,424,424,424,424,425,425,
+
+/* block 100 */
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+
+/* block 101 */
+426,426,426,426,426,426,426,426,426,426,426,426,427,428,428,428,
+426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,426,
+429,429,429,429,429,429,429,429,429,429,426,426, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,430,131,
+132,132,132,431,131,131,131,131,131,131,131,131,131,131,431,346,
+
+/* block 102 */
+128,129,128,129,128,129,128,129,128,129,128,129,128,129,128,129,
+128,129,128,129,128,129,128,129, 92, 92, 92, 92, 92, 92, 92,131,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,433,433,433,433,433,433,433,433,433,433,
+434,434,435,435,435,435,435,435, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 103 */
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+ 10, 10, 10, 10, 10, 10, 10, 85, 85, 85, 85, 85, 85, 85, 85, 85,
+ 10, 10, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 20, 20, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,
+ 84, 20, 20, 20, 20, 20, 20, 20, 20, 22, 23, 22, 23,436, 22, 23,
+
+/* block 104 */
+ 22, 23, 22, 23, 22, 23, 22, 23, 85, 10, 10, 22, 23,437, 20, 92,
+ 22, 23, 22, 23, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 22, 23, 22, 23, 22, 23, 22, 23, 22, 23,438, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 84, 84, 20, 14, 14, 14, 14, 14,
+
+/* block 105 */
+439,439,440,439,439,439,440,439,439,439,439,440,439,439,439,439,
+439,439,439,439,439,439,439,439,439,439,439,439,439,439,439,439,
+439,439,439,441,441,440,440,441,442,442,442,442, 92, 92, 92, 92,
+ 17, 17, 17, 17, 17, 17, 13, 13,  3, 13, 92, 92, 92, 92, 92, 92,
+443,443,443,443,443,443,443,443,443,443,443,443,443,443,443,443,
+443,443,443,443,443,443,443,443,443,443,443,443,443,443,443,443,
+443,443,443,443,443,443,443,443,443,443,443,443,443,443,443,443,
+443,443,443,443,444,444,444,444, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 106 */
+445,445,446,446,446,446,446,446,446,446,446,446,446,446,446,446,
+446,446,446,446,446,446,446,446,446,446,446,446,446,446,446,446,
+446,446,446,446,446,446,446,446,446,446,446,446,446,446,446,446,
+446,446,446,446,445,445,445,445,445,445,445,445,445,445,445,445,
+445,445,445,445,447, 92, 92, 92, 92, 92, 92, 92, 92, 92,448,448,
+449,449,449,449,449,449,449,449,449,449, 92, 92, 92, 92, 92, 92,
+174,174,174,174,174,174,174,174,174,174,174,174,174,174,174,174,
+174,174,176,176,176,176,176,176,178,178,178,176, 92, 92, 92, 92,
+
+/* block 107 */
+450,450,450,450,450,450,450,450,450,450,451,451,451,451,451,451,
+451,451,451,451,451,451,451,451,451,451,451,451,451,451,451,451,
+451,451,451,451,451,451,452,452,452,452,452,452,452,452,453,453,
+454,454,454,454,454,454,454,454,454,454,454,454,454,454,454,454,
+454,454,454,454,454,454,454,455,455,455,455,455,455,455,455,455,
+455,455,456,456, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,457,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257, 92, 92, 92,
+
+/* block 108 */
+458,458,458,459,460,460,460,460,460,460,460,460,460,460,460,460,
+460,460,460,460,460,460,460,460,460,460,460,460,460,460,460,460,
+460,460,460,460,460,460,460,460,460,460,460,460,460,460,460,460,
+460,460,460,458,459,459,458,458,458,458,459,459,458,459,459,459,
+459,461,461,461,461,461,461,461,461,461,461,461,461,461, 92,462,
+463,463,463,463,463,463,463,463,463,463, 92, 92, 92, 92,461,461,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 109 */
+464,464,464,464,464,464,464,464,464,464,464,464,464,464,464,464,
+464,464,464,464,464,464,464,464,464,464,464,464,464,464,464,464,
+464,464,464,464,464,464,464,464,464,465,465,465,465,465,465,466,
+466,465,465,466,466,465,465, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+464,464,464,465,464,464,464,464,464,464,464,464,465,466, 92, 92,
+467,467,467,467,467,467,467,467,467,467, 92, 92,468,468,468,468,
+248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,248,
+469,248,248,248,248,248,248,253,253,253,248,249, 92, 92, 92, 92,
+
+/* block 110 */
+470,470,470,470,470,470,470,470,470,470,470,470,470,470,470,470,
+470,470,470,470,470,470,470,470,470,470,470,470,470,470,470,470,
+470,470,470,470,470,470,470,470,470,470,470,470,470,470,470,470,
+471,470,471,471,471,470,470,471,471,470,470,470,470,470,471,471,
+470,471,470, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,470,470,472,473,473,
+474,474,474,474,474,474,474,474,474,474,474,475,476,476,475,475,
+477,477,474,478,478,475,476, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 111 */
+ 92,258,258,258,258,258,258, 92, 92,258,258,258,258,258,258, 92,
+ 92,258,258,258,258,258,258, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+258,258,258,258,258,258,258, 92,258,258,258,258,258,258,258, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 112 */
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+474,474,474,474,474,474,474,474,474,474,474,474,474,474,474,474,
+474,474,474,474,474,474,474,474,474,474,474,474,474,474,474,474,
+474,474,474,475,475,476,475,475,476,475,475,477,475,476, 92, 92,
+479,479,479,479,479,479,479,479,479,479, 92, 92, 92, 92, 92, 92,
+
+/* block 113 */
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257, 92, 92, 92, 92,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257, 92, 92, 92, 92,
+
+/* block 114 */
+480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,
+480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,
+480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,
+480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,
+480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,
+480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,
+480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,
+480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,480,
+
+/* block 115 */
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+
+/* block 116 */
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419, 92, 92,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+
+/* block 117 */
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 118 */
+ 20, 20, 20, 20, 20, 20, 20, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92,139,139,139,139,139, 92, 92, 92, 92, 92,145,142,145,
+145,145,145,145,145,145,145,145,145,482,145,145,145,145,145,145,
+145,145,145,145,145,145,145, 92,145,145,145,145,145, 92,145, 92,
+145,145, 92,145,145, 92,145,145,145,145,145,145,145,145,145,145,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+
+/* block 119 */
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,483,483,483,483,483,483,483,483,483,483,483,483,483,483,
+483,483, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+
+/* block 120 */
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+
+/* block 121 */
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,  4,  5,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+
+/* block 122 */
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+ 92, 92,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+152,152,152,152,152,152,152,152,152,152,152,152,149, 13, 92, 92,
+
+/* block 123 */
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+  2,  2,  2,  2,  2,  2,  2,  4,  5,  2, 92, 92, 92, 92, 92, 92,
+ 87, 87, 87, 87, 87, 87, 87, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+  2,  7,  7, 11, 11,  4,  5,  4,  5,  4,  5,  4,  5,  4,  5,  4,
+  5,  4,  5,  4,  5,  2,  2,  4,  5,  2,  2,  2,  2, 11, 11, 11,
+  2,  2,  2, 92,  2,  2,  2,  2,  7,  4,  5,  4,  5,  4,  5,  2,
+  2,  2,  6,  7,  6,  6,  6, 92,  2,  3,  2,  2, 92, 92, 92, 92,
+152,152,152,152,152, 92,152,152,152,152,152,152,152,152,152,152,
+
+/* block 124 */
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152, 92, 92, 16,
+
+/* block 125 */
+ 92,  2,  2,  2,  3,  2,  2,  2,  4,  5,  2,  6,  2,  7,  2,  2,
+  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  2,  2,  6,  6,  6,  2,
+  2,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,
+  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  9,  4,  2,  5, 10, 11,
+ 10, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,  4,  6,  5,  6,  4,
+  5,  2,  4,  5,  2,  2,414,414,414,414,414,414,414,414,414,414,
+ 85,414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,
+
+/* block 126 */
+414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,414,
+414,414,414,414,414,414,414,414,414,414,414,414,414,414, 85, 85,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,257,
+257,257,257,257,257,257,257,257,257,257,257,257,257,257,257, 92,
+ 92, 92,257,257,257,257,257,257, 92, 92,257,257,257,257,257,257,
+ 92, 92,257,257,257,257,257,257, 92, 92,257,257,257, 92, 92, 92,
+  3,  3,  6, 10, 13,  3,  3, 92, 13,  6,  6,  6,  6, 13, 13, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 16, 16, 16, 13, 13, 92, 92,
+
+/* block 127 */
+484,484,484,484,484,484,484,484,484,484,484,484, 92,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484, 92,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484, 92,484,484, 92,484,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484, 92, 92,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 128 */
+484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,484,
+484,484,484,484,484,484,484,484,484,484,484, 92, 92, 92, 92, 92,
+
+/* block 129 */
+  2,  2,  2, 92, 92, 92, 92, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 92, 92, 92, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+485,485,485,485,485,485,485,485,485,485,485,485,485,485,485,485,
+485,485,485,485,485,485,485,485,485,485,485,485,485,485,485,485,
+485,485,485,485,485,485,485,485,485,485,485,485,485,485,485,485,
+485,485,485,485,485,486,486,486,486,487,487,487,487,487,487,487,
+
+/* block 130 */
+487,487,487,487,487,487,487,487,487,487,486, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 87, 92, 92,
+
+/* block 131 */
+488,488,488,488,488,488,488,488,488,488,488,488,488,488,488,488,
+488,488,488,488,488,488,488,488,488,488,488,488,488, 92, 92, 92,
+489,489,489,489,489,489,489,489,489,489,489,489,489,489,489,489,
+489,489,489,489,489,489,489,489,489,489,489,489,489,489,489,489,
+489,489,489,489,489,489,489,489,489,489,489,489,489,489,489,489,
+489, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 132 */
+490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,490,
+490,490,490,490,490,490,490,490,490,490,490,490,490,490,490, 92,
+491,491,491,491, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+492,492,492,492,492,492,492,492,492,492,492,492,492,492,492,492,
+492,493,492,492,492,492,492,492,492,492,493, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 133 */
+494,494,494,494,494,494,494,494,494,494,494,494,494,494,494,494,
+494,494,494,494,494,494,494,494,494,494,494,494,494,494, 92,495,
+496,496,496,496,496,496,496,496,496,496,496,496,496,496,496,496,
+496,496,496,496,496,496,496,496,496,496,496,496,496,496,496,496,
+496,496,496,496, 92, 92, 92, 92,496,496,496,496,496,496,496,496,
+497,498,498,498,498,498, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 134 */
+499,499,499,499,499,499,499,499,499,499,499,499,499,499,499,499,
+499,499,499,499,499,499,499,499,499,499,499,499,499,499,499,499,
+499,499,499,499,499,499,499,499,500,500,500,500,500,500,500,500,
+500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,
+500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,
+501,501,501,501,501,501,501,501,501,501,501,501,501,501,501,501,
+501,501,501,501,501,501,501,501,501,501,501,501,501,501,501,501,
+501,501,501,501,501,501,501,501,501,501,501,501,501,501,501,501,
+
+/* block 135 */
+502,502,502,502,502,502,502,502,502,502,502,502,502,502,502,502,
+502,502,502,502,502,502,502,502,502,502,502,502,502,502, 92, 92,
+503,503,503,503,503,503,503,503,503,503, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 136 */
+504,504,504,504,504,504, 92, 92,504, 92,504,504,504,504,504,504,
+504,504,504,504,504,504,504,504,504,504,504,504,504,504,504,504,
+504,504,504,504,504,504,504,504,504,504,504,504,504,504,504,504,
+504,504,504,504,504,504, 92,504,504, 92, 92, 92,504, 92, 92,504,
+505,505,505,505,505,505,505,505,505,505,505,505,505,505,505,505,
+505,505,505,505,505,505, 92,506,507,507,507,507,507,507,507,507,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 137 */
+508,508,508,508,508,508,508,508,508,508,508,508,508,508,508,508,
+508,508,508,508,508,508,509,509,509,509,509,509, 92, 92, 92,510,
+511,511,511,511,511,511,511,511,511,511,511,511,511,511,511,511,
+511,511,511,511,511,511,511,511,511,511, 92, 92, 92, 92, 92,512,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 138 */
+513,513,513,513,513,513,513,513,513,513,513,513,513,513,513,513,
+513,513,513,513,513,513,513,513,513,513,513,513,513,513,513,513,
+514,514,514,514,514,514,514,514,514,514,514,514,514,514,514,514,
+514,514,514,514,514,514,514,514, 92, 92, 92, 92, 92, 92,514,514,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 139 */
+515,516,516,516, 92,516,516, 92, 92, 92, 92, 92,516,516,516,516,
+515,515,515,515, 92,515,515,515, 92,515,515,515,515,515,515,515,
+515,515,515,515,515,515,515,515,515,515,515,515,515,515,515,515,
+515,515,515,515, 92, 92, 92, 92,516,516,516, 92, 92, 92, 92,516,
+517,517,517,517,517,517,517,517, 92, 92, 92, 92, 92, 92, 92, 92,
+518,518,518,518,518,518,518,518,518, 92, 92, 92, 92, 92, 92, 92,
+519,519,519,519,519,519,519,519,519,519,519,519,519,519,519,519,
+519,519,519,519,519,519,519,519,519,519,519,519,519,520,520,521,
+
+/* block 140 */
+522,522,522,522,522,522,522,522,522,522,522,522,522,522,522,522,
+522,522,522,522,522,522,522,522,522,522,522,522,522,522,522,522,
+522,522,522,522,522,522,522,522,522,522,522,522,522,522,522,522,
+522,522,522,522,522,522, 92, 92, 92,523,523,523,523,523,523,523,
+524,524,524,524,524,524,524,524,524,524,524,524,524,524,524,524,
+524,524,524,524,524,524, 92, 92,525,525,525,525,525,525,525,525,
+526,526,526,526,526,526,526,526,526,526,526,526,526,526,526,526,
+526,526,526, 92, 92, 92, 92, 92,527,527,527,527,527,527,527,527,
+
+/* block 141 */
+528,528,528,528,528,528,528,528,528,528,528,528,528,528,528,528,
+528,528,528,528,528,528,528,528,528,528,528,528,528,528,528,528,
+528,528,528,528,528,528,528,528,528,528,528,528,528,528,528,528,
+528,528,528,528,528,528,528,528,528,528,528,528,528,528,528,528,
+528,528,528,528,528,528,528,528,528, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 142 */
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+529,529,529,529,529,529,529,529,529,529,529,529,529,529,529,529,
+529,529,529,529,529,529,529,529,529,529,529,529,529,529,529, 92,
+
+/* block 143 */
+530,531,530,532,532,532,532,532,532,532,532,532,532,532,532,532,
+532,532,532,532,532,532,532,532,532,532,532,532,532,532,532,532,
+532,532,532,532,532,532,532,532,532,532,532,532,532,532,532,532,
+532,532,532,532,532,532,532,532,531,531,531,531,531,531,531,531,
+531,531,531,531,531,531,531,533,533,533,533,533,533,533, 92, 92,
+ 92, 92,534,534,534,534,534,534,534,534,534,534,534,534,534,534,
+534,534,534,534,534,534,535,535,535,535,535,535,535,535,535,535,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 144 */
+536,536,537,538,538,538,538,538,538,538,538,538,538,538,538,538,
+538,538,538,538,538,538,538,538,538,538,538,538,538,538,538,538,
+538,538,538,538,538,538,538,538,538,538,538,538,538,538,538,538,
+537,537,537,536,536,536,536,537,537,536,536,539,539,540,539,539,
+539,539, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+541,541,541,541,541,541,541,541,541,541,541,541,541,541,541,541,
+541,541,541,541,541,541,541,541,541, 92, 92, 92, 92, 92, 92, 92,
+542,542,542,542,542,542,542,542,542,542, 92, 92, 92, 92, 92, 92,
+
+/* block 145 */
+543,543,543,544,544,544,544,544,544,544,544,544,544,544,544,544,
+544,544,544,544,544,544,544,544,544,544,544,544,544,544,544,544,
+544,544,544,544,544,544,544,543,543,543,543,543,545,543,543,543,
+543,543,543,543,543, 92,546,546,546,546,546,546,546,546,546,546,
+547,547,547,547, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 146 */
+548,548,549,550,550,550,550,550,550,550,550,550,550,550,550,550,
+550,550,550,550,550,550,550,550,550,550,550,550,550,550,550,550,
+550,550,550,550,550,550,550,550,550,550,550,550,550,550,550,550,
+550,550,550,549,549,549,548,548,548,548,548,548,548,548,548,549,
+549,550,550,550,550,551,551,551,551, 92, 92, 92, 92, 92, 92, 92,
+552,552,552,552,552,552,552,552,552,552, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 147 */
+553,553,553,553,553,553,553,553,553,553,553,553,553,553,553,553,
+553,553,553,553,553,553,553,553,553,553,553,553,553,553,553,553,
+553,553,553,553,553,553,553,553,553,553,553,554,555,554,555,555,
+554,554,554,554,554,554,555,554, 92, 92, 92, 92, 92, 92, 92, 92,
+556,556,556,556,556,556,556,556,556,556, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 148 */
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+
+/* block 149 */
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,557,
+557,557,557,557,557,557,557,557,557,557,557,557,557,557,557, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 150 */
+558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,
+558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,
+558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,
+558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,
+558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,
+558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,558,
+558,558,558, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+559,559,559,559, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 151 */
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+
+/* block 152 */
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,560,
+560,560,560,560,560,560,560,560,560,560,560,560,560,560,560, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 153 */
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+
+/* block 154 */
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,432,
+432,432,432,432,432,432,432,432,432, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 155 */
+561,561,561,561,561,561,561,561,561,561,561,561,561,561,561,561,
+561,561,561,561,561,561,561,561,561,561,561,561,561,561,561,561,
+561,561,561,561,561,561,561,561,561,561,561,561,561,561,561,561,
+561,561,561,561,561,561,561,561,561,561,561,561,561,561,561,561,
+561,561,561,561,561, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+561,562,562,562,562,562,562,562,562,562,562,562,562,562,562,562,
+562,562,562,562,562,562,562,562,562,562,562,562,562,562,562,562,
+562,562,562,562,562,562,562,562,562,562,562,562,562,562,562, 92,
+
+/* block 156 */
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,563,
+563,563,563,564,564,564,564,564,564,564,564,564,564,564,564,564,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 157 */
+414,412, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 158 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 159 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 92, 92, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13,343,343, 87, 87, 87, 13, 13, 13,343,343,343,
+343,343,343, 16, 16, 16, 16, 16, 16, 16, 16, 87, 87, 87, 87, 87,
+
+/* block 160 */
+ 87, 87, 87, 13, 13, 87, 87, 87, 87, 87, 87, 87, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 87, 87, 87, 87, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 161 */
+487,487,487,487,487,487,487,487,487,487,487,487,487,487,487,487,
+487,487,487,487,487,487,487,487,487,487,487,487,487,487,487,487,
+487,487,487,487,487,487,487,487,487,487,487,487,487,487,487,487,
+487,487,487,487,487,487,487,487,487,487,487,487,487,487,487,487,
+487,487,565,565,565,487, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 162 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 163 */
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,374,374,
+374,374,374,374,374, 92,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+
+/* block 164 */
+373,373,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,373, 92,373,373,
+ 92, 92,373, 92, 92,373,373, 92, 92,373,373,373,373, 92,373,373,
+373,373,373,373,373,373,374,374,374,374, 92,374, 92,374,374,374,
+374,374,374,374, 92,374,374,374,374,374,374,374,374,374,374,374,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+
+/* block 165 */
+374,374,374,374,373,373, 92,373,373,373,373, 92, 92,373,373,373,
+373,373,373,373,373, 92,373,373,373,373,373,373,373, 92,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,373,373, 92,373,373,373,373, 92,
+373,373,373,373,373, 92,373, 92, 92, 92,373,373,373,373,373,373,
+373, 92,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+
+/* block 166 */
+373,373,373,373,373,373,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+
+/* block 167 */
+374,374,374,374,374,374,374,374,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+
+/* block 168 */
+373,373,373,373,373,373,373,373,373,373,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374, 92, 92,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,  6,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,  6,374,374,374,374,
+374,374,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,  6,374,374,374,374,
+
+/* block 169 */
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,  6,374,374,374,374,374,374,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,  6,374,374,374,374,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,  6,
+374,374,374,374,374,374,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,  6,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+
+/* block 170 */
+374,374,374,374,374,374,374,374,374,  6,374,374,374,374,374,374,
+373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,373,
+373,373,373,373,373,373,373,373,373,  6,374,374,374,374,374,374,
+374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,374,
+374,374,374,  6,374,374,374,374,374,374,373,374, 92, 92,  8,  8,
+  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,
+  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,
+  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,  8,
+
+/* block 171 */
+152,152,152,152, 92,152,152,152,152,152,152,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,152,
+ 92,152,152, 92,152, 92, 92,152, 92,152,152,152,152,152,152,152,
+152,152,152, 92,152,152,152,152, 92,152, 92,152, 92, 92, 92, 92,
+ 92, 92,152, 92, 92, 92, 92,152, 92,152, 92,152, 92,152,152,152,
+ 92,152,152, 92,152, 92, 92,152, 92,152, 92,152, 92,152, 92,152,
+ 92,152,152, 92,152, 92, 92,152,152,152,152, 92,152,152,152,152,
+152,152,152, 92,152,152,152,152, 92,152,152,152,152, 92,152, 92,
+
+/* block 172 */
+152,152,152,152,152,152,152,152,152,152, 92,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152, 92, 92, 92, 92,
+ 92,152,152,152, 92,152,152,152,152,152, 92,152,152,152,152,152,
+152,152,152,152,152,152,152,152,152,152,152,152, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+147,147, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 173 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+
+/* block 174 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92,
+ 92, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92,
+ 92, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 92, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 175 */
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+
+/* block 176 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+
+/* block 177 */
+566, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 178 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 92, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92,
+
+/* block 179 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 92, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 180 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92,
+ 13, 92, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+
+/* block 181 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 92, 13, 13, 13, 13, 92, 92, 92,
+
+/* block 182 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 92, 92,
+ 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 183 */
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 13, 13, 13, 13, 13,
+
+/* block 184 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 92, 92, 92, 92, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 185 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 186 */
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 187 */
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 188 */
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+
+/* block 189 */
+419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,419,
+419,419,419,419,419,419,419,419,419,419,419,419,419,419, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 190 */
+ 92, 16, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+
+/* block 191 */
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+
+/* block 192 */
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87,
+ 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92,
+
+/* block 193 */
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,481,
+481,481,481,481,481,481,481,481,481,481,481,481,481,481, 92, 92,
+
+};
+
+#if UCD_BLOCK_SIZE != 128
+#error Please correct UCD_BLOCK_SIZE in pcre_internal.h
+#endif
+#endif  /* SUPPORT_UCP */
diff --git a/8.31/pcre_valid_utf8.c b/8.31/pcre_valid_utf8.c
new file mode 100644
index 0000000..7b9d3df
--- /dev/null
+++ b/8.31/pcre_valid_utf8.c
@@ -0,0 +1,299 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains an internal function for validating UTF-8 character
+strings. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+*         Validate a UTF-8 string                *
+*************************************************/
+
+/* This function is called (optionally) at the start of compile or match, to
+check that a supposed UTF-8 string is actually valid. The early check means
+that subsequent code can assume it is dealing with a valid string. The check
+can be turned off for maximum performance, but the consequences of supplying an
+invalid string are then undefined.
+
+Originally, this function checked according to RFC 2279, allowing for values in
+the range 0 to 0x7fffffff, up to 6 bytes long, but ensuring that they were in
+the canonical format. Once somebody had pointed out RFC 3629 to me (it
+obsoletes 2279), additional restrictions were applied. The values are now
+limited to be between 0 and 0x0010ffff, no more than 4 bytes long, and the
+subrange 0xd000 to 0xdfff is excluded. However, the format of 5-byte and 6-byte
+characters is still checked.
+
+From release 8.13 more information about the details of the error are passed
+back in the returned value:
+
+PCRE_UTF8_ERR0   No error
+PCRE_UTF8_ERR1   Missing 1 byte at the end of the string
+PCRE_UTF8_ERR2   Missing 2 bytes at the end of the string
+PCRE_UTF8_ERR3   Missing 3 bytes at the end of the string
+PCRE_UTF8_ERR4   Missing 4 bytes at the end of the string
+PCRE_UTF8_ERR5   Missing 5 bytes at the end of the string
+PCRE_UTF8_ERR6   2nd-byte's two top bits are not 0x80
+PCRE_UTF8_ERR7   3rd-byte's two top bits are not 0x80
+PCRE_UTF8_ERR8   4th-byte's two top bits are not 0x80
+PCRE_UTF8_ERR9   5th-byte's two top bits are not 0x80
+PCRE_UTF8_ERR10  6th-byte's two top bits are not 0x80
+PCRE_UTF8_ERR11  5-byte character is not permitted by RFC 3629
+PCRE_UTF8_ERR12  6-byte character is not permitted by RFC 3629
+PCRE_UTF8_ERR13  4-byte character with value > 0x10ffff is not permitted
+PCRE_UTF8_ERR14  3-byte character with value 0xd000-0xdfff is not permitted
+PCRE_UTF8_ERR15  Overlong 2-byte sequence
+PCRE_UTF8_ERR16  Overlong 3-byte sequence
+PCRE_UTF8_ERR17  Overlong 4-byte sequence
+PCRE_UTF8_ERR18  Overlong 5-byte sequence (won't ever occur)
+PCRE_UTF8_ERR19  Overlong 6-byte sequence (won't ever occur)
+PCRE_UTF8_ERR20  Isolated 0x80 byte (not within UTF-8 character)
+PCRE_UTF8_ERR21  Byte with the illegal value 0xfe or 0xff
+
+Arguments:
+  string       points to the string
+  length       length of string, or -1 if the string is zero-terminated
+  errp         pointer to an error position offset variable
+
+Returns:       = 0    if the string is a valid UTF-8 string
+               > 0    otherwise, setting the offset of the bad character
+*/
+
+int
+PRIV(valid_utf)(PCRE_PUCHAR string, int length, int *erroroffset)
+{
+#ifdef SUPPORT_UTF
+register PCRE_PUCHAR p;
+
+if (length < 0)
+  {
+  for (p = string; *p != 0; p++);
+  length = (int)(p - string);
+  }
+
+for (p = string; length-- > 0; p++)
+  {
+  register int ab, c, d;
+
+  c = *p;
+  if (c < 128) continue;                /* ASCII character */
+
+  if (c < 0xc0)                         /* Isolated 10xx xxxx byte */
+    {
+    *erroroffset = (int)(p - string);
+    return PCRE_UTF8_ERR20;
+    }
+
+  if (c >= 0xfe)                        /* Invalid 0xfe or 0xff bytes */
+    {
+    *erroroffset = (int)(p - string);
+    return PCRE_UTF8_ERR21;
+    }
+
+  ab = PRIV(utf8_table4)[c & 0x3f];     /* Number of additional bytes */
+  if (length < ab)
+    {
+    *erroroffset = (int)(p - string);          /* Missing bytes */
+    return ab - length;                 /* Codes ERR1 to ERR5 */
+    }
+  length -= ab;                         /* Length remaining */
+
+  /* Check top bits in the second byte */
+
+  if (((d = *(++p)) & 0xc0) != 0x80)
+    {
+    *erroroffset = (int)(p - string) - 1;
+    return PCRE_UTF8_ERR6;
+    }
+
+  /* For each length, check that the remaining bytes start with the 0x80 bit
+  set and not the 0x40 bit. Then check for an overlong sequence, and for the
+  excluded range 0xd800 to 0xdfff. */
+
+  switch (ab)
+    {
+    /* 2-byte character. No further bytes to check for 0x80. Check first byte
+    for for xx00 000x (overlong sequence). */
+
+    case 1: if ((c & 0x3e) == 0)
+      {
+      *erroroffset = (int)(p - string) - 1;
+      return PCRE_UTF8_ERR15;
+      }
+    break;
+
+    /* 3-byte character. Check third byte for 0x80. Then check first 2 bytes
+      for 1110 0000, xx0x xxxx (overlong sequence) or
+          1110 1101, 1010 xxxx (0xd800 - 0xdfff) */
+
+    case 2:
+    if ((*(++p) & 0xc0) != 0x80)     /* Third byte */
+      {
+      *erroroffset = (int)(p - string) - 2;
+      return PCRE_UTF8_ERR7;
+      }
+    if (c == 0xe0 && (d & 0x20) == 0)
+      {
+      *erroroffset = (int)(p - string) - 2;
+      return PCRE_UTF8_ERR16;
+      }
+    if (c == 0xed && d >= 0xa0)
+      {
+      *erroroffset = (int)(p - string) - 2;
+      return PCRE_UTF8_ERR14;
+      }
+    break;
+
+    /* 4-byte character. Check 3rd and 4th bytes for 0x80. Then check first 2
+       bytes for for 1111 0000, xx00 xxxx (overlong sequence), then check for a
+       character greater than 0x0010ffff (f4 8f bf bf) */
+
+    case 3:
+    if ((*(++p) & 0xc0) != 0x80)     /* Third byte */
+      {
+      *erroroffset = (int)(p - string) - 2;
+      return PCRE_UTF8_ERR7;
+      }
+    if ((*(++p) & 0xc0) != 0x80)     /* Fourth byte */
+      {
+      *erroroffset = (int)(p - string) - 3;
+      return PCRE_UTF8_ERR8;
+      }
+    if (c == 0xf0 && (d & 0x30) == 0)
+      {
+      *erroroffset = (int)(p - string) - 3;
+      return PCRE_UTF8_ERR17;
+      }
+    if (c > 0xf4 || (c == 0xf4 && d > 0x8f))
+      {
+      *erroroffset = (int)(p - string) - 3;
+      return PCRE_UTF8_ERR13;
+      }
+    break;
+
+    /* 5-byte and 6-byte characters are not allowed by RFC 3629, and will be
+    rejected by the length test below. However, we do the appropriate tests
+    here so that overlong sequences get diagnosed, and also in case there is
+    ever an option for handling these larger code points. */
+
+    /* 5-byte character. Check 3rd, 4th, and 5th bytes for 0x80. Then check for
+    1111 1000, xx00 0xxx */
+
+    case 4:
+    if ((*(++p) & 0xc0) != 0x80)     /* Third byte */
+      {
+      *erroroffset = (int)(p - string) - 2;
+      return PCRE_UTF8_ERR7;
+      }
+    if ((*(++p) & 0xc0) != 0x80)     /* Fourth byte */
+      {
+      *erroroffset = (int)(p - string) - 3;
+      return PCRE_UTF8_ERR8;
+      }
+    if ((*(++p) & 0xc0) != 0x80)     /* Fifth byte */
+      {
+      *erroroffset = (int)(p - string) - 4;
+      return PCRE_UTF8_ERR9;
+      }
+    if (c == 0xf8 && (d & 0x38) == 0)
+      {
+      *erroroffset = (int)(p - string) - 4;
+      return PCRE_UTF8_ERR18;
+      }
+    break;
+
+    /* 6-byte character. Check 3rd-6th bytes for 0x80. Then check for
+    1111 1100, xx00 00xx. */
+
+    case 5:
+    if ((*(++p) & 0xc0) != 0x80)     /* Third byte */
+      {
+      *erroroffset = (int)(p - string) - 2;
+      return PCRE_UTF8_ERR7;
+      }
+    if ((*(++p) & 0xc0) != 0x80)     /* Fourth byte */
+      {
+      *erroroffset = (int)(p - string) - 3;
+      return PCRE_UTF8_ERR8;
+      }
+    if ((*(++p) & 0xc0) != 0x80)     /* Fifth byte */
+      {
+      *erroroffset = (int)(p - string) - 4;
+      return PCRE_UTF8_ERR9;
+      }
+    if ((*(++p) & 0xc0) != 0x80)     /* Sixth byte */
+      {
+      *erroroffset = (int)(p - string) - 5;
+      return PCRE_UTF8_ERR10;
+      }
+    if (c == 0xfc && (d & 0x3c) == 0)
+      {
+      *erroroffset = (int)(p - string) - 5;
+      return PCRE_UTF8_ERR19;
+      }
+    break;
+    }
+
+  /* Character is valid under RFC 2279, but 4-byte and 5-byte characters are
+  excluded by RFC 3629. The pointer p is currently at the last byte of the
+  character. */
+
+  if (ab > 3)
+    {
+    *erroroffset = (int)(p - string) - ab;
+    return (ab == 4)? PCRE_UTF8_ERR11 : PCRE_UTF8_ERR12;
+    }
+  }
+
+#else  /* SUPPORT_UTF */
+(void)(string);  /* Keep picky compilers happy */
+(void)(length);
+#endif
+
+return PCRE_UTF8_ERR0;   /* This indicates success */
+}
+
+/* End of pcre_valid_utf8.c */
diff --git a/8.31/pcre_version.c b/8.31/pcre_version.c
new file mode 100644
index 0000000..58a0eaa
--- /dev/null
+++ b/8.31/pcre_version.c
@@ -0,0 +1,95 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains the external function pcre_version(), which returns a
+string that identifies the PCRE version that is in use. */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+*          Return version string                 *
+*************************************************/
+
+/* These macros are the standard way of turning unquoted text into C strings.
+They allow macros like PCRE_MAJOR to be defined without quotes, which is
+convenient for user programs that want to test its value. */
+
+#define STRING(a)  # a
+#define XSTRING(s) STRING(s)
+
+/* A problem turned up with PCRE_PRERELEASE, which is defined empty for
+production releases. Originally, it was used naively in this code:
+
+  return XSTRING(PCRE_MAJOR)
+         "." XSTRING(PCRE_MINOR)
+             XSTRING(PCRE_PRERELEASE)
+         " " XSTRING(PCRE_DATE);
+
+However, when PCRE_PRERELEASE is empty, this leads to an attempted expansion of
+STRING(). The C standard states: "If (before argument substitution) any
+argument consists of no preprocessing tokens, the behavior is undefined." It
+turns out the gcc treats this case as a single empty string - which is what we
+really want - but Visual C grumbles about the lack of an argument for the
+macro. Unfortunately, both are within their rights. To cope with both ways of
+handling this, I had resort to some messy hackery that does a test at run time.
+I could find no way of detecting that a macro is defined as an empty string at
+pre-processor time. This hack uses a standard trick for avoiding calling
+the STRING macro with an empty argument when doing the test. */
+
+#ifdef COMPILE_PCRE8
+PCRE_EXP_DEFN const char * PCRE_CALL_CONVENTION
+pcre_version(void)
+#else
+PCRE_EXP_DEFN const char * PCRE_CALL_CONVENTION
+pcre16_version(void)
+#endif
+{
+return (XSTRING(Z PCRE_PRERELEASE)[1] == 0)?
+  XSTRING(PCRE_MAJOR.PCRE_MINOR PCRE_DATE) :
+  XSTRING(PCRE_MAJOR.PCRE_MINOR) XSTRING(PCRE_PRERELEASE PCRE_DATE);
+}
+
+/* End of pcre_version.c */
diff --git a/8.31/pcre_xclass.c b/8.31/pcre_xclass.c
new file mode 100644
index 0000000..dca7a39
--- /dev/null
+++ b/8.31/pcre_xclass.c
@@ -0,0 +1,198 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+           Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains an internal function that is used to match an extended
+class. It is used by both pcre_exec() and pcre_def_exec(). */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+
+/*************************************************
+*       Match character against an XCLASS        *
+*************************************************/
+
+/* This function is called to match a character against an extended class that
+might contain values > 255 and/or Unicode properties.
+
+Arguments:
+  c           the character
+  data        points to the flag byte of the XCLASS data
+
+Returns:      TRUE if character matches, else FALSE
+*/
+
+BOOL
+PRIV(xclass)(int c, const pcre_uchar *data, BOOL utf)
+{
+int t;
+BOOL negated = (*data & XCL_NOT) != 0;
+
+(void)utf;
+#ifdef COMPILE_PCRE8
+/* In 8 bit mode, this must always be TRUE. Help the compiler to know that. */
+utf = TRUE;
+#endif
+
+/* Character values < 256 are matched against a bitmap, if one is present. If
+not, we still carry on, because there may be ranges that start below 256 in the
+additional data. */
+
+if (c < 256)
+  {
+  if ((*data & XCL_MAP) != 0 &&
+    (((pcre_uint8 *)(data + 1))[c/8] & (1 << (c&7))) != 0)
+    return !negated; /* char found */
+  }
+
+/* First skip the bit map if present. Then match against the list of Unicode
+properties or large chars or ranges that end with a large char. We won't ever
+encounter XCL_PROP or XCL_NOTPROP when UCP support is not compiled. */
+
+if ((*data++ & XCL_MAP) != 0) data += 32 / sizeof(pcre_uchar);
+
+while ((t = *data++) != XCL_END)
+  {
+  int x, y;
+  if (t == XCL_SINGLE)
+    {
+#ifdef SUPPORT_UTF
+    if (utf)
+      {
+      GETCHARINC(x, data); /* macro generates multiple statements */
+      }
+    else
+#endif
+      x = *data++;
+    if (c == x) return !negated;
+    }
+  else if (t == XCL_RANGE)
+    {
+#ifdef SUPPORT_UTF
+    if (utf)
+      {
+      GETCHARINC(x, data); /* macro generates multiple statements */
+      GETCHARINC(y, data); /* macro generates multiple statements */
+      }
+    else
+#endif
+      {
+      x = *data++;
+      y = *data++;
+      }
+    if (c >= x && c <= y) return !negated;
+    }
+
+#ifdef SUPPORT_UCP
+  else  /* XCL_PROP & XCL_NOTPROP */
+    {
+    const ucd_record *prop = GET_UCD(c);
+
+    switch(*data)
+      {
+      case PT_ANY:
+      if (t == XCL_PROP) return !negated;
+      break;
+
+      case PT_LAMP:
+      if ((prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
+           prop->chartype == ucp_Lt) == (t == XCL_PROP)) return !negated;
+      break;
+
+      case PT_GC:
+      if ((data[1] == PRIV(ucp_gentype)[prop->chartype]) == (t == XCL_PROP))
+        return !negated;
+      break;
+
+      case PT_PC:
+      if ((data[1] == prop->chartype) == (t == XCL_PROP)) return !negated;
+      break;
+
+      case PT_SC:
+      if ((data[1] == prop->script) == (t == XCL_PROP)) return !negated;
+      break;
+
+      case PT_ALNUM:
+      if ((PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+           PRIV(ucp_gentype)[prop->chartype] == ucp_N) == (t == XCL_PROP))
+        return !negated;
+      break;
+
+      case PT_SPACE:    /* Perl space */
+      if ((PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+           c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR)
+             == (t == XCL_PROP))
+        return !negated;
+      break;
+
+      case PT_PXSPACE:  /* POSIX space */
+      if ((PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
+           c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
+           c == CHAR_FF || c == CHAR_CR) == (t == XCL_PROP))
+        return !negated;
+      break;
+
+      case PT_WORD:
+      if ((PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
+           PRIV(ucp_gentype)[prop->chartype] == ucp_N || c == CHAR_UNDERSCORE)
+             == (t == XCL_PROP))
+        return !negated;
+      break;
+
+      /* This should never occur, but compilers may mutter if there is no
+      default. */
+
+      default:
+      return FALSE;
+      }
+
+    data += 2;
+    }
+#endif  /* SUPPORT_UCP */
+  }
+
+return negated;   /* char did not match */
+}
+
+/* End of pcre_xclass.c */
diff --git a/8.31/pcrecpp.cpp b/8.31/pcrecpp.cpp
new file mode 100644
index 0000000..1e91098
--- /dev/null
+++ b/8.31/pcrecpp.cpp
@@ -0,0 +1,919 @@
+// Copyright (c) 2010, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sanjay Ghemawat
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <limits.h>      /* for SHRT_MIN, USHRT_MAX, etc */
+#include <string.h>      /* for memcpy */
+#include <assert.h>
+#include <errno.h>
+#include <string>
+#include <algorithm>
+
+#include "pcrecpp_internal.h"
+#include "pcre.h"
+#include "pcrecpp.h"
+#include "pcre_stringpiece.h"
+
+
+namespace pcrecpp {
+
+// Maximum number of args we can set
+static const int kMaxArgs = 16;
+static const int kVecSize = (1 + kMaxArgs) * 3;  // results + PCRE workspace
+
+// Special object that stands-in for no argument
+Arg RE::no_arg((void*)NULL);
+
+// This is for ABI compatibility with old versions of pcre (pre-7.6),
+// which defined a global no_arg variable instead of putting it in the
+// RE class.  This works on GCC >= 3, at least.  It definitely works
+// for ELF, but may not for other object formats (Mach-O, for
+// instance, does not support aliases.)  We could probably have a more
+// inclusive test if we ever needed it.  (Note that not only the
+// __attribute__ syntax, but also __USER_LABEL_PREFIX__, are
+// gnu-specific.)
+#if defined(__GNUC__) && __GNUC__ >= 3 && defined(__ELF__)
+# define ULP_AS_STRING(x)            ULP_AS_STRING_INTERNAL(x)
+# define ULP_AS_STRING_INTERNAL(x)   #x
+# define USER_LABEL_PREFIX_STR       ULP_AS_STRING(__USER_LABEL_PREFIX__)
+extern Arg no_arg
+  __attribute__((alias(USER_LABEL_PREFIX_STR "_ZN7pcrecpp2RE6no_argE")));
+#endif
+
+// If a regular expression has no error, its error_ field points here
+static const string empty_string;
+
+// If the user doesn't ask for any options, we just use this one
+static RE_Options default_options;
+
+void RE::Init(const string& pat, const RE_Options* options) {
+  pattern_ = pat;
+  if (options == NULL) {
+    options_ = default_options;
+  } else {
+    options_ = *options;
+  }
+  error_ = &empty_string;
+  re_full_ = NULL;
+  re_partial_ = NULL;
+
+  re_partial_ = Compile(UNANCHORED);
+  if (re_partial_ != NULL) {
+    re_full_ = Compile(ANCHOR_BOTH);
+  }
+}
+
+void RE::Cleanup() {
+  if (re_full_ != NULL)         (*pcre_free)(re_full_);
+  if (re_partial_ != NULL)      (*pcre_free)(re_partial_);
+  if (error_ != &empty_string)  delete error_;
+}
+
+
+RE::~RE() {
+  Cleanup();
+}
+
+
+pcre* RE::Compile(Anchor anchor) {
+  // First, convert RE_Options into pcre options
+  int pcre_options = 0;
+  pcre_options = options_.all_options();
+
+  // Special treatment for anchoring.  This is needed because at
+  // runtime pcre only provides an option for anchoring at the
+  // beginning of a string (unless you use offset).
+  //
+  // There are three types of anchoring we want:
+  //    UNANCHORED      Compile the original pattern, and use
+  //                    a pcre unanchored match.
+  //    ANCHOR_START    Compile the original pattern, and use
+  //                    a pcre anchored match.
+  //    ANCHOR_BOTH     Tack a "\z" to the end of the original pattern
+  //                    and use a pcre anchored match.
+
+  const char* compile_error;
+  int eoffset;
+  pcre* re;
+  if (anchor != ANCHOR_BOTH) {
+    re = pcre_compile(pattern_.c_str(), pcre_options,
+                      &compile_error, &eoffset, NULL);
+  } else {
+    // Tack a '\z' at the end of RE.  Parenthesize it first so that
+    // the '\z' applies to all top-level alternatives in the regexp.
+    string wrapped = "(?:";  // A non-counting grouping operator
+    wrapped += pattern_;
+    wrapped += ")\\z";
+    re = pcre_compile(wrapped.c_str(), pcre_options,
+                      &compile_error, &eoffset, NULL);
+  }
+  if (re == NULL) {
+    if (error_ == &empty_string) error_ = new string(compile_error);
+  }
+  return re;
+}
+
+/***** Matching interfaces *****/
+
+bool RE::FullMatch(const StringPiece& text,
+                   const Arg& ptr1,
+                   const Arg& ptr2,
+                   const Arg& ptr3,
+                   const Arg& ptr4,
+                   const Arg& ptr5,
+                   const Arg& ptr6,
+                   const Arg& ptr7,
+                   const Arg& ptr8,
+                   const Arg& ptr9,
+                   const Arg& ptr10,
+                   const Arg& ptr11,
+                   const Arg& ptr12,
+                   const Arg& ptr13,
+                   const Arg& ptr14,
+                   const Arg& ptr15,
+                   const Arg& ptr16) const {
+  const Arg* args[kMaxArgs];
+  int n = 0;
+  if (&ptr1  == &no_arg) goto done; args[n++] = &ptr1;
+  if (&ptr2  == &no_arg) goto done; args[n++] = &ptr2;
+  if (&ptr3  == &no_arg) goto done; args[n++] = &ptr3;
+  if (&ptr4  == &no_arg) goto done; args[n++] = &ptr4;
+  if (&ptr5  == &no_arg) goto done; args[n++] = &ptr5;
+  if (&ptr6  == &no_arg) goto done; args[n++] = &ptr6;
+  if (&ptr7  == &no_arg) goto done; args[n++] = &ptr7;
+  if (&ptr8  == &no_arg) goto done; args[n++] = &ptr8;
+  if (&ptr9  == &no_arg) goto done; args[n++] = &ptr9;
+  if (&ptr10 == &no_arg) goto done; args[n++] = &ptr10;
+  if (&ptr11 == &no_arg) goto done; args[n++] = &ptr11;
+  if (&ptr12 == &no_arg) goto done; args[n++] = &ptr12;
+  if (&ptr13 == &no_arg) goto done; args[n++] = &ptr13;
+  if (&ptr14 == &no_arg) goto done; args[n++] = &ptr14;
+  if (&ptr15 == &no_arg) goto done; args[n++] = &ptr15;
+  if (&ptr16 == &no_arg) goto done; args[n++] = &ptr16;
+ done:
+
+  int consumed;
+  int vec[kVecSize];
+  return DoMatchImpl(text, ANCHOR_BOTH, &consumed, args, n, vec, kVecSize);
+}
+
+bool RE::PartialMatch(const StringPiece& text,
+                      const Arg& ptr1,
+                      const Arg& ptr2,
+                      const Arg& ptr3,
+                      const Arg& ptr4,
+                      const Arg& ptr5,
+                      const Arg& ptr6,
+                      const Arg& ptr7,
+                      const Arg& ptr8,
+                      const Arg& ptr9,
+                      const Arg& ptr10,
+                      const Arg& ptr11,
+                      const Arg& ptr12,
+                      const Arg& ptr13,
+                      const Arg& ptr14,
+                      const Arg& ptr15,
+                      const Arg& ptr16) const {
+  const Arg* args[kMaxArgs];
+  int n = 0;
+  if (&ptr1  == &no_arg) goto done; args[n++] = &ptr1;
+  if (&ptr2  == &no_arg) goto done; args[n++] = &ptr2;
+  if (&ptr3  == &no_arg) goto done; args[n++] = &ptr3;
+  if (&ptr4  == &no_arg) goto done; args[n++] = &ptr4;
+  if (&ptr5  == &no_arg) goto done; args[n++] = &ptr5;
+  if (&ptr6  == &no_arg) goto done; args[n++] = &ptr6;
+  if (&ptr7  == &no_arg) goto done; args[n++] = &ptr7;
+  if (&ptr8  == &no_arg) goto done; args[n++] = &ptr8;
+  if (&ptr9  == &no_arg) goto done; args[n++] = &ptr9;
+  if (&ptr10 == &no_arg) goto done; args[n++] = &ptr10;
+  if (&ptr11 == &no_arg) goto done; args[n++] = &ptr11;
+  if (&ptr12 == &no_arg) goto done; args[n++] = &ptr12;
+  if (&ptr13 == &no_arg) goto done; args[n++] = &ptr13;
+  if (&ptr14 == &no_arg) goto done; args[n++] = &ptr14;
+  if (&ptr15 == &no_arg) goto done; args[n++] = &ptr15;
+  if (&ptr16 == &no_arg) goto done; args[n++] = &ptr16;
+ done:
+
+  int consumed;
+  int vec[kVecSize];
+  return DoMatchImpl(text, UNANCHORED, &consumed, args, n, vec, kVecSize);
+}
+
+bool RE::Consume(StringPiece* input,
+                 const Arg& ptr1,
+                 const Arg& ptr2,
+                 const Arg& ptr3,
+                 const Arg& ptr4,
+                 const Arg& ptr5,
+                 const Arg& ptr6,
+                 const Arg& ptr7,
+                 const Arg& ptr8,
+                 const Arg& ptr9,
+                 const Arg& ptr10,
+                 const Arg& ptr11,
+                 const Arg& ptr12,
+                 const Arg& ptr13,
+                 const Arg& ptr14,
+                 const Arg& ptr15,
+                 const Arg& ptr16) const {
+  const Arg* args[kMaxArgs];
+  int n = 0;
+  if (&ptr1  == &no_arg) goto done; args[n++] = &ptr1;
+  if (&ptr2  == &no_arg) goto done; args[n++] = &ptr2;
+  if (&ptr3  == &no_arg) goto done; args[n++] = &ptr3;
+  if (&ptr4  == &no_arg) goto done; args[n++] = &ptr4;
+  if (&ptr5  == &no_arg) goto done; args[n++] = &ptr5;
+  if (&ptr6  == &no_arg) goto done; args[n++] = &ptr6;
+  if (&ptr7  == &no_arg) goto done; args[n++] = &ptr7;
+  if (&ptr8  == &no_arg) goto done; args[n++] = &ptr8;
+  if (&ptr9  == &no_arg) goto done; args[n++] = &ptr9;
+  if (&ptr10 == &no_arg) goto done; args[n++] = &ptr10;
+  if (&ptr11 == &no_arg) goto done; args[n++] = &ptr11;
+  if (&ptr12 == &no_arg) goto done; args[n++] = &ptr12;
+  if (&ptr13 == &no_arg) goto done; args[n++] = &ptr13;
+  if (&ptr14 == &no_arg) goto done; args[n++] = &ptr14;
+  if (&ptr15 == &no_arg) goto done; args[n++] = &ptr15;
+  if (&ptr16 == &no_arg) goto done; args[n++] = &ptr16;
+ done:
+
+  int consumed;
+  int vec[kVecSize];
+  if (DoMatchImpl(*input, ANCHOR_START, &consumed,
+                  args, n, vec, kVecSize)) {
+    input->remove_prefix(consumed);
+    return true;
+  } else {
+    return false;
+  }
+}
+
+bool RE::FindAndConsume(StringPiece* input,
+                        const Arg& ptr1,
+                        const Arg& ptr2,
+                        const Arg& ptr3,
+                        const Arg& ptr4,
+                        const Arg& ptr5,
+                        const Arg& ptr6,
+                        const Arg& ptr7,
+                        const Arg& ptr8,
+                        const Arg& ptr9,
+                        const Arg& ptr10,
+                        const Arg& ptr11,
+                        const Arg& ptr12,
+                        const Arg& ptr13,
+                        const Arg& ptr14,
+                        const Arg& ptr15,
+                        const Arg& ptr16) const {
+  const Arg* args[kMaxArgs];
+  int n = 0;
+  if (&ptr1  == &no_arg) goto done; args[n++] = &ptr1;
+  if (&ptr2  == &no_arg) goto done; args[n++] = &ptr2;
+  if (&ptr3  == &no_arg) goto done; args[n++] = &ptr3;
+  if (&ptr4  == &no_arg) goto done; args[n++] = &ptr4;
+  if (&ptr5  == &no_arg) goto done; args[n++] = &ptr5;
+  if (&ptr6  == &no_arg) goto done; args[n++] = &ptr6;
+  if (&ptr7  == &no_arg) goto done; args[n++] = &ptr7;
+  if (&ptr8  == &no_arg) goto done; args[n++] = &ptr8;
+  if (&ptr9  == &no_arg) goto done; args[n++] = &ptr9;
+  if (&ptr10 == &no_arg) goto done; args[n++] = &ptr10;
+  if (&ptr11 == &no_arg) goto done; args[n++] = &ptr11;
+  if (&ptr12 == &no_arg) goto done; args[n++] = &ptr12;
+  if (&ptr13 == &no_arg) goto done; args[n++] = &ptr13;
+  if (&ptr14 == &no_arg) goto done; args[n++] = &ptr14;
+  if (&ptr15 == &no_arg) goto done; args[n++] = &ptr15;
+  if (&ptr16 == &no_arg) goto done; args[n++] = &ptr16;
+ done:
+
+  int consumed;
+  int vec[kVecSize];
+  if (DoMatchImpl(*input, UNANCHORED, &consumed,
+                  args, n, vec, kVecSize)) {
+    input->remove_prefix(consumed);
+    return true;
+  } else {
+    return false;
+  }
+}
+
+bool RE::Replace(const StringPiece& rewrite,
+                 string *str) const {
+  int vec[kVecSize];
+  int matches = TryMatch(*str, 0, UNANCHORED, true, vec, kVecSize);
+  if (matches == 0)
+    return false;
+
+  string s;
+  if (!Rewrite(&s, rewrite, *str, vec, matches))
+    return false;
+
+  assert(vec[0] >= 0);
+  assert(vec[1] >= 0);
+  str->replace(vec[0], vec[1] - vec[0], s);
+  return true;
+}
+
+// Returns PCRE_NEWLINE_CRLF, PCRE_NEWLINE_CR, or PCRE_NEWLINE_LF.
+// Note that PCRE_NEWLINE_CRLF is defined to be P_N_CR | P_N_LF.
+// Modified by PH to add PCRE_NEWLINE_ANY and PCRE_NEWLINE_ANYCRLF.
+
+static int NewlineMode(int pcre_options) {
+  // TODO: if we can make it threadsafe, cache this var
+  int newline_mode = 0;
+  /* if (newline_mode) return newline_mode; */  // do this once it's cached
+  if (pcre_options & (PCRE_NEWLINE_CRLF|PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|
+                      PCRE_NEWLINE_ANY|PCRE_NEWLINE_ANYCRLF)) {
+    newline_mode = (pcre_options &
+                    (PCRE_NEWLINE_CRLF|PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|
+                     PCRE_NEWLINE_ANY|PCRE_NEWLINE_ANYCRLF));
+  } else {
+    int newline;
+    pcre_config(PCRE_CONFIG_NEWLINE, &newline);
+    if (newline == 10)
+      newline_mode = PCRE_NEWLINE_LF;
+    else if (newline == 13)
+      newline_mode = PCRE_NEWLINE_CR;
+    else if (newline == 3338)
+      newline_mode = PCRE_NEWLINE_CRLF;
+    else if (newline == -1)
+      newline_mode = PCRE_NEWLINE_ANY;
+    else if (newline == -2)
+      newline_mode = PCRE_NEWLINE_ANYCRLF;
+    else
+      assert(NULL == "Unexpected return value from pcre_config(NEWLINE)");
+  }
+  return newline_mode;
+}
+
+int RE::GlobalReplace(const StringPiece& rewrite,
+                      string *str) const {
+  int count = 0;
+  int vec[kVecSize];
+  string out;
+  int start = 0;
+  bool last_match_was_empty_string = false;
+
+  while (start <= static_cast<int>(str->length())) {
+    // If the previous match was for the empty string, we shouldn't
+    // just match again: we'll match in the same way and get an
+    // infinite loop.  Instead, we do the match in a special way:
+    // anchored -- to force another try at the same position --
+    // and with a flag saying that this time, ignore empty matches.
+    // If this special match returns, that means there's a non-empty
+    // match at this position as well, and we can continue.  If not,
+    // we do what perl does, and just advance by one.
+    // Notice that perl prints '@@@' for this;
+    //    perl -le '$_ = "aa"; s/b*|aa/@/g; print'
+    int matches;
+    if (last_match_was_empty_string) {
+      matches = TryMatch(*str, start, ANCHOR_START, false, vec, kVecSize);
+      if (matches <= 0) {
+        int matchend = start + 1;     // advance one character.
+        // If the current char is CR and we're in CRLF mode, skip LF too.
+        // Note it's better to call pcre_fullinfo() than to examine
+        // all_options(), since options_ could have changed bewteen
+        // compile-time and now, but this is simpler and safe enough.
+        // Modified by PH to add ANY and ANYCRLF.
+        if (matchend < static_cast<int>(str->length()) &&
+            (*str)[start] == '\r' && (*str)[matchend] == '\n' &&
+            (NewlineMode(options_.all_options()) == PCRE_NEWLINE_CRLF ||
+             NewlineMode(options_.all_options()) == PCRE_NEWLINE_ANY ||
+             NewlineMode(options_.all_options()) == PCRE_NEWLINE_ANYCRLF)) {
+          matchend++;
+        }
+        // We also need to advance more than one char if we're in utf8 mode.
+#ifdef SUPPORT_UTF8
+        if (options_.utf8()) {
+          while (matchend < static_cast<int>(str->length()) &&
+                 ((*str)[matchend] & 0xc0) == 0x80)
+            matchend++;
+        }
+#endif
+        if (start < static_cast<int>(str->length()))
+          out.append(*str, start, matchend - start);
+        start = matchend;
+        last_match_was_empty_string = false;
+        continue;
+      }
+    } else {
+      matches = TryMatch(*str, start, UNANCHORED, true, vec, kVecSize);
+      if (matches <= 0)
+        break;
+    }
+    int matchstart = vec[0], matchend = vec[1];
+    assert(matchstart >= start);
+    assert(matchend >= matchstart);
+    out.append(*str, start, matchstart - start);
+    Rewrite(&out, rewrite, *str, vec, matches);
+    start = matchend;
+    count++;
+    last_match_was_empty_string = (matchstart == matchend);
+  }
+
+  if (count == 0)
+    return 0;
+
+  if (start < static_cast<int>(str->length()))
+    out.append(*str, start, str->length() - start);
+  swap(out, *str);
+  return count;
+}
+
+bool RE::Extract(const StringPiece& rewrite,
+                 const StringPiece& text,
+                 string *out) const {
+  int vec[kVecSize];
+  int matches = TryMatch(text, 0, UNANCHORED, true, vec, kVecSize);
+  if (matches == 0)
+    return false;
+  out->erase();
+  return Rewrite(out, rewrite, text, vec, matches);
+}
+
+/*static*/ string RE::QuoteMeta(const StringPiece& unquoted) {
+  string result;
+
+  // Escape any ascii character not in [A-Za-z_0-9].
+  //
+  // Note that it's legal to escape a character even if it has no
+  // special meaning in a regular expression -- so this function does
+  // that.  (This also makes it identical to the perl function of the
+  // same name; see `perldoc -f quotemeta`.)  The one exception is
+  // escaping NUL: rather than doing backslash + NUL, like perl does,
+  // we do '\0', because pcre itself doesn't take embedded NUL chars.
+  for (int ii = 0; ii < unquoted.size(); ++ii) {
+    // Note that using 'isalnum' here raises the benchmark time from
+    // 32ns to 58ns:
+    if (unquoted[ii] == '\0') {
+      result += "\\0";
+    } else if ((unquoted[ii] < 'a' || unquoted[ii] > 'z') &&
+               (unquoted[ii] < 'A' || unquoted[ii] > 'Z') &&
+               (unquoted[ii] < '0' || unquoted[ii] > '9') &&
+               unquoted[ii] != '_' &&
+               // If this is the part of a UTF8 or Latin1 character, we need
+               // to copy this byte without escaping.  Experimentally this is
+               // what works correctly with the regexp library.
+               !(unquoted[ii] & 128)) {
+      result += '\\';
+      result += unquoted[ii];
+    } else {
+      result += unquoted[ii];
+    }
+  }
+
+  return result;
+}
+
+/***** Actual matching and rewriting code *****/
+
+int RE::TryMatch(const StringPiece& text,
+                 int startpos,
+                 Anchor anchor,
+                 bool empty_ok,
+                 int *vec,
+                 int vecsize) const {
+  pcre* re = (anchor == ANCHOR_BOTH) ? re_full_ : re_partial_;
+  if (re == NULL) {
+    //fprintf(stderr, "Matching against invalid re: %s\n", error_->c_str());
+    return 0;
+  }
+
+  pcre_extra extra = { 0, 0, 0, 0, 0, 0 };
+  if (options_.match_limit() > 0) {
+    extra.flags |= PCRE_EXTRA_MATCH_LIMIT;
+    extra.match_limit = options_.match_limit();
+  }
+  if (options_.match_limit_recursion() > 0) {
+    extra.flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION;
+    extra.match_limit_recursion = options_.match_limit_recursion();
+  }
+
+  int options = 0;
+  if (anchor != UNANCHORED)
+    options |= PCRE_ANCHORED;
+  if (!empty_ok)
+    options |= PCRE_NOTEMPTY;
+
+  int rc = pcre_exec(re,              // The regular expression object
+                     &extra,
+                     (text.data() == NULL) ? "" : text.data(),
+                     text.size(),
+                     startpos,
+                     options,
+                     vec,
+                     vecsize);
+
+  // Handle errors
+  if (rc == PCRE_ERROR_NOMATCH) {
+    return 0;
+  } else if (rc < 0) {
+    //fprintf(stderr, "Unexpected return code: %d when matching '%s'\n",
+    //        re, pattern_.c_str());
+    return 0;
+  } else if (rc == 0) {
+    // pcre_exec() returns 0 as a special case when the number of
+    // capturing subpatterns exceeds the size of the vector.
+    // When this happens, there is a match and the output vector
+    // is filled, but we miss out on the positions of the extra subpatterns.
+    rc = vecsize / 2;
+  }
+
+  return rc;
+}
+
+bool RE::DoMatchImpl(const StringPiece& text,
+                     Anchor anchor,
+                     int* consumed,
+                     const Arg* const* args,
+                     int n,
+                     int* vec,
+                     int vecsize) const {
+  assert((1 + n) * 3 <= vecsize);  // results + PCRE workspace
+  int matches = TryMatch(text, 0, anchor, true, vec, vecsize);
+  assert(matches >= 0);  // TryMatch never returns negatives
+  if (matches == 0)
+    return false;
+
+  *consumed = vec[1];
+
+  if (n == 0 || args == NULL) {
+    // We are not interested in results
+    return true;
+  }
+
+  if (NumberOfCapturingGroups() < n) {
+    // RE has fewer capturing groups than number of arg pointers passed in
+    return false;
+  }
+
+  // If we got here, we must have matched the whole pattern.
+  // We do not need (can not do) any more checks on the value of 'matches' here
+  // -- see the comment for TryMatch.
+  for (int i = 0; i < n; i++) {
+    const int start = vec[2*(i+1)];
+    const int limit = vec[2*(i+1)+1];
+    if (!args[i]->Parse(text.data() + start, limit-start)) {
+      // TODO: Should we indicate what the error was?
+      return false;
+    }
+  }
+
+  return true;
+}
+
+bool RE::DoMatch(const StringPiece& text,
+                 Anchor anchor,
+                 int* consumed,
+                 const Arg* const args[],
+                 int n) const {
+  assert(n >= 0);
+  size_t const vecsize = (1 + n) * 3;  // results + PCRE workspace
+                                       // (as for kVecSize)
+  int space[21];   // use stack allocation for small vecsize (common case)
+  int* vec = vecsize <= 21 ? space : new int[vecsize];
+  bool retval = DoMatchImpl(text, anchor, consumed, args, n, vec, (int)vecsize);
+  if (vec != space) delete [] vec;
+  return retval;
+}
+
+bool RE::Rewrite(string *out, const StringPiece &rewrite,
+                 const StringPiece &text, int *vec, int veclen) const {
+  for (const char *s = rewrite.data(), *end = s + rewrite.size();
+       s < end; s++) {
+    int c = *s;
+    if (c == '\\') {
+      c = *++s;
+      if (isdigit(c)) {
+        int n = (c - '0');
+        if (n >= veclen) {
+          //fprintf(stderr, requested group %d in regexp %.*s\n",
+          //        n, rewrite.size(), rewrite.data());
+          return false;
+        }
+        int start = vec[2 * n];
+        if (start >= 0)
+          out->append(text.data() + start, vec[2 * n + 1] - start);
+      } else if (c == '\\') {
+        *out += '\\';
+      } else {
+        //fprintf(stderr, "invalid rewrite pattern: %.*s\n",
+        //        rewrite.size(), rewrite.data());
+        return false;
+      }
+    } else {
+      *out += c;
+    }
+  }
+  return true;
+}
+
+// Return the number of capturing subpatterns, or -1 if the
+// regexp wasn't valid on construction.
+int RE::NumberOfCapturingGroups() const {
+  if (re_partial_ == NULL) return -1;
+
+  int result;
+  int pcre_retval = pcre_fullinfo(re_partial_,  // The regular expression object
+                                  NULL,         // We did not study the pattern
+                                  PCRE_INFO_CAPTURECOUNT,
+                                  &result);
+  assert(pcre_retval == 0);
+  return result;
+}
+
+/***** Parsers for various types *****/
+
+bool Arg::parse_null(const char* str, int n, void* dest) {
+  // We fail if somebody asked us to store into a non-NULL void* pointer
+  return (dest == NULL);
+}
+
+bool Arg::parse_string(const char* str, int n, void* dest) {
+  if (dest == NULL) return true;
+  reinterpret_cast<string*>(dest)->assign(str, n);
+  return true;
+}
+
+bool Arg::parse_stringpiece(const char* str, int n, void* dest) {
+  if (dest == NULL) return true;
+  reinterpret_cast<StringPiece*>(dest)->set(str, n);
+  return true;
+}
+
+bool Arg::parse_char(const char* str, int n, void* dest) {
+  if (n != 1) return false;
+  if (dest == NULL) return true;
+  *(reinterpret_cast<char*>(dest)) = str[0];
+  return true;
+}
+
+bool Arg::parse_uchar(const char* str, int n, void* dest) {
+  if (n != 1) return false;
+  if (dest == NULL) return true;
+  *(reinterpret_cast<unsigned char*>(dest)) = str[0];
+  return true;
+}
+
+// Largest number spec that we are willing to parse
+static const int kMaxNumberLength = 32;
+
+// REQUIRES "buf" must have length at least kMaxNumberLength+1
+// REQUIRES "n > 0"
+// Copies "str" into "buf" and null-terminates if necessary.
+// Returns one of:
+//      a. "str" if no termination is needed
+//      b. "buf" if the string was copied and null-terminated
+//      c. "" if the input was invalid and has no hope of being parsed
+static const char* TerminateNumber(char* buf, const char* str, int n) {
+  if ((n > 0) && isspace(*str)) {
+    // We are less forgiving than the strtoxxx() routines and do not
+    // allow leading spaces.
+    return "";
+  }
+
+  // See if the character right after the input text may potentially
+  // look like a digit.
+  if (isdigit(str[n]) ||
+      ((str[n] >= 'a') && (str[n] <= 'f')) ||
+      ((str[n] >= 'A') && (str[n] <= 'F'))) {
+    if (n > kMaxNumberLength) return ""; // Input too big to be a valid number
+    memcpy(buf, str, n);
+    buf[n] = '\0';
+    return buf;
+  } else {
+    // We can parse right out of the supplied string, so return it.
+    return str;
+  }
+}
+
+bool Arg::parse_long_radix(const char* str,
+                           int n,
+                           void* dest,
+                           int radix) {
+  if (n == 0) return false;
+  char buf[kMaxNumberLength+1];
+  str = TerminateNumber(buf, str, n);
+  char* end;
+  errno = 0;
+  long r = strtol(str, &end, radix);
+  if (end != str + n) return false;   // Leftover junk
+  if (errno) return false;
+  if (dest == NULL) return true;
+  *(reinterpret_cast<long*>(dest)) = r;
+  return true;
+}
+
+bool Arg::parse_ulong_radix(const char* str,
+                            int n,
+                            void* dest,
+                            int radix) {
+  if (n == 0) return false;
+  char buf[kMaxNumberLength+1];
+  str = TerminateNumber(buf, str, n);
+  if (str[0] == '-') return false;    // strtoul() on a negative number?!
+  char* end;
+  errno = 0;
+  unsigned long r = strtoul(str, &end, radix);
+  if (end != str + n) return false;   // Leftover junk
+  if (errno) return false;
+  if (dest == NULL) return true;
+  *(reinterpret_cast<unsigned long*>(dest)) = r;
+  return true;
+}
+
+bool Arg::parse_short_radix(const char* str,
+                            int n,
+                            void* dest,
+                            int radix) {
+  long r;
+  if (!parse_long_radix(str, n, &r, radix)) return false; // Could not parse
+  if (r < SHRT_MIN || r > SHRT_MAX) return false;       // Out of range
+  if (dest == NULL) return true;
+  *(reinterpret_cast<short*>(dest)) = static_cast<short>(r);
+  return true;
+}
+
+bool Arg::parse_ushort_radix(const char* str,
+                             int n,
+                             void* dest,
+                             int radix) {
+  unsigned long r;
+  if (!parse_ulong_radix(str, n, &r, radix)) return false; // Could not parse
+  if (r > USHRT_MAX) return false;                      // Out of range
+  if (dest == NULL) return true;
+  *(reinterpret_cast<unsigned short*>(dest)) = static_cast<unsigned short>(r);
+  return true;
+}
+
+bool Arg::parse_int_radix(const char* str,
+                          int n,
+                          void* dest,
+                          int radix) {
+  long r;
+  if (!parse_long_radix(str, n, &r, radix)) return false; // Could not parse
+  if (r < INT_MIN || r > INT_MAX) return false;         // Out of range
+  if (dest == NULL) return true;
+  *(reinterpret_cast<int*>(dest)) = r;
+  return true;
+}
+
+bool Arg::parse_uint_radix(const char* str,
+                           int n,
+                           void* dest,
+                           int radix) {
+  unsigned long r;
+  if (!parse_ulong_radix(str, n, &r, radix)) return false; // Could not parse
+  if (r > UINT_MAX) return false;                       // Out of range
+  if (dest == NULL) return true;
+  *(reinterpret_cast<unsigned int*>(dest)) = r;
+  return true;
+}
+
+bool Arg::parse_longlong_radix(const char* str,
+                               int n,
+                               void* dest,
+                               int radix) {
+#ifndef HAVE_LONG_LONG
+  return false;
+#else
+  if (n == 0) return false;
+  char buf[kMaxNumberLength+1];
+  str = TerminateNumber(buf, str, n);
+  char* end;
+  errno = 0;
+#if defined HAVE_STRTOQ
+  long long r = strtoq(str, &end, radix);
+#elif defined HAVE_STRTOLL
+  long long r = strtoll(str, &end, radix);
+#elif defined HAVE__STRTOI64
+  long long r = _strtoi64(str, &end, radix);
+#elif defined HAVE_STRTOIMAX
+  long long r = strtoimax(str, &end, radix);
+#else
+#error parse_longlong_radix: cannot convert input to a long-long
+#endif
+  if (end != str + n) return false;   // Leftover junk
+  if (errno) return false;
+  if (dest == NULL) return true;
+  *(reinterpret_cast<long long*>(dest)) = r;
+  return true;
+#endif   /* HAVE_LONG_LONG */
+}
+
+bool Arg::parse_ulonglong_radix(const char* str,
+                                int n,
+                                void* dest,
+                                int radix) {
+#ifndef HAVE_UNSIGNED_LONG_LONG
+  return false;
+#else
+  if (n == 0) return false;
+  char buf[kMaxNumberLength+1];
+  str = TerminateNumber(buf, str, n);
+  if (str[0] == '-') return false;    // strtoull() on a negative number?!
+  char* end;
+  errno = 0;
+#if defined HAVE_STRTOQ
+  unsigned long long r = strtouq(str, &end, radix);
+#elif defined HAVE_STRTOLL
+  unsigned long long r = strtoull(str, &end, radix);
+#elif defined HAVE__STRTOI64
+  unsigned long long r = _strtoui64(str, &end, radix);
+#elif defined HAVE_STRTOIMAX
+  unsigned long long r = strtoumax(str, &end, radix);
+#else
+#error parse_ulonglong_radix: cannot convert input to a long-long
+#endif
+  if (end != str + n) return false;   // Leftover junk
+  if (errno) return false;
+  if (dest == NULL) return true;
+  *(reinterpret_cast<unsigned long long*>(dest)) = r;
+  return true;
+#endif   /* HAVE_UNSIGNED_LONG_LONG */
+}
+
+bool Arg::parse_double(const char* str, int n, void* dest) {
+  if (n == 0) return false;
+  static const int kMaxLength = 200;
+  char buf[kMaxLength];
+  if (n >= kMaxLength) return false;
+  memcpy(buf, str, n);
+  buf[n] = '\0';
+  errno = 0;
+  char* end;
+  double r = strtod(buf, &end);
+  if (end != buf + n) return false;   // Leftover junk
+  if (errno) return false;
+  if (dest == NULL) return true;
+  *(reinterpret_cast<double*>(dest)) = r;
+  return true;
+}
+
+bool Arg::parse_float(const char* str, int n, void* dest) {
+  double r;
+  if (!parse_double(str, n, &r)) return false;
+  if (dest == NULL) return true;
+  *(reinterpret_cast<float*>(dest)) = static_cast<float>(r);
+  return true;
+}
+
+
+#define DEFINE_INTEGER_PARSERS(name)                                    \
+  bool Arg::parse_##name(const char* str, int n, void* dest) {          \
+    return parse_##name##_radix(str, n, dest, 10);                      \
+  }                                                                     \
+  bool Arg::parse_##name##_hex(const char* str, int n, void* dest) {    \
+    return parse_##name##_radix(str, n, dest, 16);                      \
+  }                                                                     \
+  bool Arg::parse_##name##_octal(const char* str, int n, void* dest) {  \
+    return parse_##name##_radix(str, n, dest, 8);                       \
+  }                                                                     \
+  bool Arg::parse_##name##_cradix(const char* str, int n, void* dest) { \
+    return parse_##name##_radix(str, n, dest, 0);                       \
+  }
+
+DEFINE_INTEGER_PARSERS(short)      /*                                   */
+DEFINE_INTEGER_PARSERS(ushort)     /*                                   */
+DEFINE_INTEGER_PARSERS(int)        /* Don't use semicolons after these  */
+DEFINE_INTEGER_PARSERS(uint)       /* statements because they can cause */
+DEFINE_INTEGER_PARSERS(long)       /* compiler warnings if the checking */
+DEFINE_INTEGER_PARSERS(ulong)      /* level is turned up high enough.   */
+DEFINE_INTEGER_PARSERS(longlong)   /*                                   */
+DEFINE_INTEGER_PARSERS(ulonglong)  /*                                   */
+
+#undef DEFINE_INTEGER_PARSERS
+
+}   // namespace pcrecpp
diff --git a/8.31/pcrecpp.h b/8.31/pcrecpp.h
new file mode 100644
index 0000000..3e594b0
--- /dev/null
+++ b/8.31/pcrecpp.h
@@ -0,0 +1,710 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sanjay Ghemawat
+// Support for PCRE_XXX modifiers added by Giuseppe Maxia, July 2005
+
+#ifndef _PCRECPP_H
+#define _PCRECPP_H
+
+// C++ interface to the pcre regular-expression library.  RE supports
+// Perl-style regular expressions (with extensions like \d, \w, \s,
+// ...).
+//
+// -----------------------------------------------------------------------
+// REGEXP SYNTAX:
+//
+// This module is part of the pcre library and hence supports its syntax
+// for regular expressions.
+//
+// The syntax is pretty similar to Perl's.  For those not familiar
+// with Perl's regular expressions, here are some examples of the most
+// commonly used extensions:
+//
+//   "hello (\\w+) world"  -- \w matches a "word" character
+//   "version (\\d+)"      -- \d matches a digit
+//   "hello\\s+world"      -- \s matches any whitespace character
+//   "\\b(\\w+)\\b"        -- \b matches empty string at a word boundary
+//   "(?i)hello"           -- (?i) turns on case-insensitive matching
+//   "/\\*(.*?)\\*/"       -- .*? matches . minimum no. of times possible
+//
+// -----------------------------------------------------------------------
+// MATCHING INTERFACE:
+//
+// The "FullMatch" operation checks that supplied text matches a
+// supplied pattern exactly.
+//
+// Example: successful match
+//    pcrecpp::RE re("h.*o");
+//    re.FullMatch("hello");
+//
+// Example: unsuccessful match (requires full match):
+//    pcrecpp::RE re("e");
+//    !re.FullMatch("hello");
+//
+// Example: creating a temporary RE object:
+//    pcrecpp::RE("h.*o").FullMatch("hello");
+//
+// You can pass in a "const char*" or a "string" for "text".  The
+// examples below tend to use a const char*.
+//
+// You can, as in the different examples above, store the RE object
+// explicitly in a variable or use a temporary RE object.  The
+// examples below use one mode or the other arbitrarily.  Either
+// could correctly be used for any of these examples.
+//
+// -----------------------------------------------------------------------
+// MATCHING WITH SUB-STRING EXTRACTION:
+//
+// You can supply extra pointer arguments to extract matched subpieces.
+//
+// Example: extracts "ruby" into "s" and 1234 into "i"
+//    int i;
+//    string s;
+//    pcrecpp::RE re("(\\w+):(\\d+)");
+//    re.FullMatch("ruby:1234", &s, &i);
+//
+// Example: does not try to extract any extra sub-patterns
+//    re.FullMatch("ruby:1234", &s);
+//
+// Example: does not try to extract into NULL
+//    re.FullMatch("ruby:1234", NULL, &i);
+//
+// Example: integer overflow causes failure
+//    !re.FullMatch("ruby:1234567891234", NULL, &i);
+//
+// Example: fails because there aren't enough sub-patterns:
+//    !pcrecpp::RE("\\w+:\\d+").FullMatch("ruby:1234", &s);
+//
+// Example: fails because string cannot be stored in integer
+//    !pcrecpp::RE("(.*)").FullMatch("ruby", &i);
+//
+// The provided pointer arguments can be pointers to any scalar numeric
+// type, or one of
+//    string        (matched piece is copied to string)
+//    StringPiece   (StringPiece is mutated to point to matched piece)
+//    T             (where "bool T::ParseFrom(const char*, int)" exists)
+//    NULL          (the corresponding matched sub-pattern is not copied)
+//
+// CAVEAT: An optional sub-pattern that does not exist in the matched
+// string is assigned the empty string.  Therefore, the following will
+// return false (because the empty string is not a valid number):
+//    int number;
+//    pcrecpp::RE::FullMatch("abc", "[a-z]+(\\d+)?", &number);
+//
+// -----------------------------------------------------------------------
+// DO_MATCH
+//
+// The matching interface supports at most 16 arguments per call.
+// If you need more, consider using the more general interface
+// pcrecpp::RE::DoMatch().  See pcrecpp.h for the signature for DoMatch.
+//
+// -----------------------------------------------------------------------
+// PARTIAL MATCHES
+//
+// You can use the "PartialMatch" operation when you want the pattern
+// to match any substring of the text.
+//
+// Example: simple search for a string:
+//    pcrecpp::RE("ell").PartialMatch("hello");
+//
+// Example: find first number in a string:
+//    int number;
+//    pcrecpp::RE re("(\\d+)");
+//    re.PartialMatch("x*100 + 20", &number);
+//    assert(number == 100);
+//
+// -----------------------------------------------------------------------
+// UTF-8 AND THE MATCHING INTERFACE:
+//
+// By default, pattern and text are plain text, one byte per character.
+// The UTF8 flag, passed to the constructor, causes both pattern
+// and string to be treated as UTF-8 text, still a byte stream but
+// potentially multiple bytes per character. In practice, the text
+// is likelier to be UTF-8 than the pattern, but the match returned
+// may depend on the UTF8 flag, so always use it when matching
+// UTF8 text.  E.g., "." will match one byte normally but with UTF8
+// set may match up to three bytes of a multi-byte character.
+//
+// Example:
+//    pcrecpp::RE_Options options;
+//    options.set_utf8();
+//    pcrecpp::RE re(utf8_pattern, options);
+//    re.FullMatch(utf8_string);
+//
+// Example: using the convenience function UTF8():
+//    pcrecpp::RE re(utf8_pattern, pcrecpp::UTF8());
+//    re.FullMatch(utf8_string);
+//
+// NOTE: The UTF8 option is ignored if pcre was not configured with the
+//       --enable-utf8 flag.
+//
+// -----------------------------------------------------------------------
+// PASSING MODIFIERS TO THE REGULAR EXPRESSION ENGINE
+//
+// PCRE defines some modifiers to change the behavior of the regular
+// expression engine.
+// The C++ wrapper defines an auxiliary class, RE_Options, as a vehicle
+// to pass such modifiers to a RE class.
+//
+// Currently, the following modifiers are supported
+//
+//    modifier              description               Perl corresponding
+//
+//    PCRE_CASELESS         case insensitive match    /i
+//    PCRE_MULTILINE        multiple lines match      /m
+//    PCRE_DOTALL           dot matches newlines      /s
+//    PCRE_DOLLAR_ENDONLY   $ matches only at end     N/A
+//    PCRE_EXTRA            strict escape parsing     N/A
+//    PCRE_EXTENDED         ignore whitespaces        /x
+//    PCRE_UTF8             handles UTF8 chars        built-in
+//    PCRE_UNGREEDY         reverses * and *?         N/A
+//    PCRE_NO_AUTO_CAPTURE  disables matching parens  N/A (*)
+//
+// (For a full account on how each modifier works, please check the
+// PCRE API reference manual).
+//
+// (*) Both Perl and PCRE allow non matching parentheses by means of the
+// "?:" modifier within the pattern itself. e.g. (?:ab|cd) does not
+// capture, while (ab|cd) does.
+//
+// For each modifier, there are two member functions whose name is made
+// out of the modifier in lowercase, without the "PCRE_" prefix. For
+// instance, PCRE_CASELESS is handled by
+//    bool caseless(),
+// which returns true if the modifier is set, and
+//    RE_Options & set_caseless(bool),
+// which sets or unsets the modifier.
+//
+// Moreover, PCRE_EXTRA_MATCH_LIMIT can be accessed through the
+// set_match_limit() and match_limit() member functions.
+// Setting match_limit to a non-zero value will limit the executation of
+// pcre to keep it from doing bad things like blowing the stack or taking
+// an eternity to return a result.  A value of 5000 is good enough to stop
+// stack blowup in a 2MB thread stack.  Setting match_limit to zero will
+// disable match limiting.  Alternately, you can set match_limit_recursion()
+// which uses PCRE_EXTRA_MATCH_LIMIT_RECURSION to limit how much pcre
+// recurses.  match_limit() caps the number of matches pcre does;
+// match_limit_recrusion() caps the depth of recursion.
+//
+// Normally, to pass one or more modifiers to a RE class, you declare
+// a RE_Options object, set the appropriate options, and pass this
+// object to a RE constructor. Example:
+//
+//    RE_options opt;
+//    opt.set_caseless(true);
+//
+//    if (RE("HELLO", opt).PartialMatch("hello world")) ...
+//
+// RE_options has two constructors. The default constructor takes no
+// arguments and creates a set of flags that are off by default.
+//
+// The optional parameter 'option_flags' is to facilitate transfer
+// of legacy code from C programs.  This lets you do
+//    RE(pattern, RE_Options(PCRE_CASELESS|PCRE_MULTILINE)).PartialMatch(str);
+//
+// But new code is better off doing
+//    RE(pattern,
+//      RE_Options().set_caseless(true).set_multiline(true)).PartialMatch(str);
+// (See below)
+//
+// If you are going to pass one of the most used modifiers, there are some
+// convenience functions that return a RE_Options class with the
+// appropriate modifier already set:
+// CASELESS(), UTF8(), MULTILINE(), DOTALL(), EXTENDED()
+//
+// If you need to set several options at once, and you don't want to go
+// through the pains of declaring a RE_Options object and setting several
+// options, there is a parallel method that give you such ability on the
+// fly. You can concatenate several set_xxxxx member functions, since each
+// of them returns a reference to its class object.  e.g.: to pass
+// PCRE_CASELESS, PCRE_EXTENDED, and PCRE_MULTILINE to a RE with one
+// statement, you may write
+//
+//    RE(" ^ xyz \\s+ .* blah$", RE_Options()
+//                            .set_caseless(true)
+//                            .set_extended(true)
+//                            .set_multiline(true)).PartialMatch(sometext);
+//
+// -----------------------------------------------------------------------
+// SCANNING TEXT INCREMENTALLY
+//
+// The "Consume" operation may be useful if you want to repeatedly
+// match regular expressions at the front of a string and skip over
+// them as they match.  This requires use of the "StringPiece" type,
+// which represents a sub-range of a real string.  Like RE, StringPiece
+// is defined in the pcrecpp namespace.
+//
+// Example: read lines of the form "var = value" from a string.
+//    string contents = ...;                 // Fill string somehow
+//    pcrecpp::StringPiece input(contents);  // Wrap in a StringPiece
+//
+//    string var;
+//    int value;
+//    pcrecpp::RE re("(\\w+) = (\\d+)\n");
+//    while (re.Consume(&input, &var, &value)) {
+//      ...;
+//    }
+//
+// Each successful call to "Consume" will set "var/value", and also
+// advance "input" so it points past the matched text.
+//
+// The "FindAndConsume" operation is similar to "Consume" but does not
+// anchor your match at the beginning of the string.  For example, you
+// could extract all words from a string by repeatedly calling
+//     pcrecpp::RE("(\\w+)").FindAndConsume(&input, &word)
+//
+// -----------------------------------------------------------------------
+// PARSING HEX/OCTAL/C-RADIX NUMBERS
+//
+// By default, if you pass a pointer to a numeric value, the
+// corresponding text is interpreted as a base-10 number.  You can
+// instead wrap the pointer with a call to one of the operators Hex(),
+// Octal(), or CRadix() to interpret the text in another base.  The
+// CRadix operator interprets C-style "0" (base-8) and "0x" (base-16)
+// prefixes, but defaults to base-10.
+//
+// Example:
+//   int a, b, c, d;
+//   pcrecpp::RE re("(.*) (.*) (.*) (.*)");
+//   re.FullMatch("100 40 0100 0x40",
+//                pcrecpp::Octal(&a), pcrecpp::Hex(&b),
+//                pcrecpp::CRadix(&c), pcrecpp::CRadix(&d));
+// will leave 64 in a, b, c, and d.
+//
+// -----------------------------------------------------------------------
+// REPLACING PARTS OF STRINGS
+//
+// You can replace the first match of "pattern" in "str" with
+// "rewrite".  Within "rewrite", backslash-escaped digits (\1 to \9)
+// can be used to insert text matching corresponding parenthesized
+// group from the pattern.  \0 in "rewrite" refers to the entire
+// matching text.  E.g.,
+//
+//   string s = "yabba dabba doo";
+//   pcrecpp::RE("b+").Replace("d", &s);
+//
+// will leave "s" containing "yada dabba doo".  The result is true if
+// the pattern matches and a replacement occurs, or false otherwise.
+//
+// GlobalReplace() is like Replace(), except that it replaces all
+// occurrences of the pattern in the string with the rewrite.
+// Replacements are not subject to re-matching.  E.g.,
+//
+//   string s = "yabba dabba doo";
+//   pcrecpp::RE("b+").GlobalReplace("d", &s);
+//
+// will leave "s" containing "yada dada doo".  It returns the number
+// of replacements made.
+//
+// Extract() is like Replace(), except that if the pattern matches,
+// "rewrite" is copied into "out" (an additional argument) with
+// substitutions.  The non-matching portions of "text" are ignored.
+// Returns true iff a match occurred and the extraction happened
+// successfully.  If no match occurs, the string is left unaffected.
+
+
+#include <string>
+#include <pcre.h>
+#include <pcrecpparg.h>   // defines the Arg class
+// This isn't technically needed here, but we include it
+// anyway so folks who include pcrecpp.h don't have to.
+#include <pcre_stringpiece.h>
+
+namespace pcrecpp {
+
+#define PCRE_SET_OR_CLEAR(b, o) \
+    if (b) all_options_ |= (o); else all_options_ &= ~(o); \
+    return *this
+
+#define PCRE_IS_SET(o)  \
+        (all_options_ & o) == o
+
+/***** Compiling regular expressions: the RE class *****/
+
+// RE_Options allow you to set options to be passed along to pcre,
+// along with other options we put on top of pcre.
+// Only 9 modifiers, plus match_limit and match_limit_recursion,
+// are supported now.
+class PCRECPP_EXP_DEFN RE_Options {
+ public:
+  // constructor
+  RE_Options() : match_limit_(0), match_limit_recursion_(0), all_options_(0) {}
+
+  // alternative constructor.
+  // To facilitate transfer of legacy code from C programs
+  //
+  // This lets you do
+  //    RE(pattern, RE_Options(PCRE_CASELESS|PCRE_MULTILINE)).PartialMatch(str);
+  // But new code is better off doing
+  //    RE(pattern,
+  //      RE_Options().set_caseless(true).set_multiline(true)).PartialMatch(str);
+  RE_Options(int option_flags) : match_limit_(0), match_limit_recursion_(0),
+                                 all_options_(option_flags) {}
+  // we're fine with the default destructor, copy constructor, etc.
+
+  // accessors and mutators
+  int match_limit() const { return match_limit_; };
+  RE_Options &set_match_limit(int limit) {
+    match_limit_ = limit;
+    return *this;
+  }
+
+  int match_limit_recursion() const { return match_limit_recursion_; };
+  RE_Options &set_match_limit_recursion(int limit) {
+    match_limit_recursion_ = limit;
+    return *this;
+  }
+
+  bool caseless() const {
+    return PCRE_IS_SET(PCRE_CASELESS);
+  }
+  RE_Options &set_caseless(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_CASELESS);
+  }
+
+  bool multiline() const {
+    return PCRE_IS_SET(PCRE_MULTILINE);
+  }
+  RE_Options &set_multiline(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_MULTILINE);
+  }
+
+  bool dotall() const {
+    return PCRE_IS_SET(PCRE_DOTALL);
+  }
+  RE_Options &set_dotall(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_DOTALL);
+  }
+
+  bool extended() const {
+    return PCRE_IS_SET(PCRE_EXTENDED);
+  }
+  RE_Options &set_extended(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_EXTENDED);
+  }
+
+  bool dollar_endonly() const {
+    return PCRE_IS_SET(PCRE_DOLLAR_ENDONLY);
+  }
+  RE_Options &set_dollar_endonly(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_DOLLAR_ENDONLY);
+  }
+
+  bool extra() const {
+    return PCRE_IS_SET(PCRE_EXTRA);
+  }
+  RE_Options &set_extra(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_EXTRA);
+  }
+
+  bool ungreedy() const {
+    return PCRE_IS_SET(PCRE_UNGREEDY);
+  }
+  RE_Options &set_ungreedy(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_UNGREEDY);
+  }
+
+  bool utf8() const {
+    return PCRE_IS_SET(PCRE_UTF8);
+  }
+  RE_Options &set_utf8(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_UTF8);
+  }
+
+  bool no_auto_capture() const {
+    return PCRE_IS_SET(PCRE_NO_AUTO_CAPTURE);
+  }
+  RE_Options &set_no_auto_capture(bool x) {
+    PCRE_SET_OR_CLEAR(x, PCRE_NO_AUTO_CAPTURE);
+  }
+
+  RE_Options &set_all_options(int opt) {
+    all_options_ = opt;
+    return *this;
+  }
+  int all_options() const {
+    return all_options_ ;
+  }
+
+  // TODO: add other pcre flags
+
+ private:
+  int match_limit_;
+  int match_limit_recursion_;
+  int all_options_;
+};
+
+// These functions return some common RE_Options
+static inline RE_Options UTF8() {
+  return RE_Options().set_utf8(true);
+}
+
+static inline RE_Options CASELESS() {
+  return RE_Options().set_caseless(true);
+}
+static inline RE_Options MULTILINE() {
+  return RE_Options().set_multiline(true);
+}
+
+static inline RE_Options DOTALL() {
+  return RE_Options().set_dotall(true);
+}
+
+static inline RE_Options EXTENDED() {
+  return RE_Options().set_extended(true);
+}
+
+// Interface for regular expression matching.  Also corresponds to a
+// pre-compiled regular expression.  An "RE" object is safe for
+// concurrent use by multiple threads.
+class PCRECPP_EXP_DEFN RE {
+ public:
+  // We provide implicit conversions from strings so that users can
+  // pass in a string or a "const char*" wherever an "RE" is expected.
+  RE(const string& pat) { Init(pat, NULL); }
+  RE(const string& pat, const RE_Options& option) { Init(pat, &option); }
+  RE(const char* pat) { Init(pat, NULL); }
+  RE(const char* pat, const RE_Options& option) { Init(pat, &option); }
+  RE(const unsigned char* pat) {
+    Init(reinterpret_cast<const char*>(pat), NULL);
+  }
+  RE(const unsigned char* pat, const RE_Options& option) {
+    Init(reinterpret_cast<const char*>(pat), &option);
+  }
+
+  // Copy constructor & assignment - note that these are expensive
+  // because they recompile the expression.
+  RE(const RE& re) { Init(re.pattern_, &re.options_); }
+  const RE& operator=(const RE& re) {
+    if (this != &re) {
+      Cleanup();
+
+      // This is the code that originally came from Google
+      // Init(re.pattern_.c_str(), &re.options_);
+
+      // This is the replacement from Ari Pollak
+      Init(re.pattern_, &re.options_);
+    }
+    return *this;
+  }
+
+
+  ~RE();
+
+  // The string specification for this RE.  E.g.
+  //   RE re("ab*c?d+");
+  //   re.pattern();    // "ab*c?d+"
+  const string& pattern() const { return pattern_; }
+
+  // If RE could not be created properly, returns an error string.
+  // Else returns the empty string.
+  const string& error() const { return *error_; }
+
+  /***** The useful part: the matching interface *****/
+
+  // This is provided so one can do pattern.ReplaceAll() just as
+  // easily as ReplaceAll(pattern-text, ....)
+
+  bool FullMatch(const StringPiece& text,
+                 const Arg& ptr1 = no_arg,
+                 const Arg& ptr2 = no_arg,
+                 const Arg& ptr3 = no_arg,
+                 const Arg& ptr4 = no_arg,
+                 const Arg& ptr5 = no_arg,
+                 const Arg& ptr6 = no_arg,
+                 const Arg& ptr7 = no_arg,
+                 const Arg& ptr8 = no_arg,
+                 const Arg& ptr9 = no_arg,
+                 const Arg& ptr10 = no_arg,
+                 const Arg& ptr11 = no_arg,
+                 const Arg& ptr12 = no_arg,
+                 const Arg& ptr13 = no_arg,
+                 const Arg& ptr14 = no_arg,
+                 const Arg& ptr15 = no_arg,
+                 const Arg& ptr16 = no_arg) const;
+
+  bool PartialMatch(const StringPiece& text,
+                    const Arg& ptr1 = no_arg,
+                    const Arg& ptr2 = no_arg,
+                    const Arg& ptr3 = no_arg,
+                    const Arg& ptr4 = no_arg,
+                    const Arg& ptr5 = no_arg,
+                    const Arg& ptr6 = no_arg,
+                    const Arg& ptr7 = no_arg,
+                    const Arg& ptr8 = no_arg,
+                    const Arg& ptr9 = no_arg,
+                    const Arg& ptr10 = no_arg,
+                    const Arg& ptr11 = no_arg,
+                    const Arg& ptr12 = no_arg,
+                    const Arg& ptr13 = no_arg,
+                    const Arg& ptr14 = no_arg,
+                    const Arg& ptr15 = no_arg,
+                    const Arg& ptr16 = no_arg) const;
+
+  bool Consume(StringPiece* input,
+               const Arg& ptr1 = no_arg,
+               const Arg& ptr2 = no_arg,
+               const Arg& ptr3 = no_arg,
+               const Arg& ptr4 = no_arg,
+               const Arg& ptr5 = no_arg,
+               const Arg& ptr6 = no_arg,
+               const Arg& ptr7 = no_arg,
+               const Arg& ptr8 = no_arg,
+               const Arg& ptr9 = no_arg,
+               const Arg& ptr10 = no_arg,
+               const Arg& ptr11 = no_arg,
+               const Arg& ptr12 = no_arg,
+               const Arg& ptr13 = no_arg,
+               const Arg& ptr14 = no_arg,
+               const Arg& ptr15 = no_arg,
+               const Arg& ptr16 = no_arg) const;
+
+  bool FindAndConsume(StringPiece* input,
+                      const Arg& ptr1 = no_arg,
+                      const Arg& ptr2 = no_arg,
+                      const Arg& ptr3 = no_arg,
+                      const Arg& ptr4 = no_arg,
+                      const Arg& ptr5 = no_arg,
+                      const Arg& ptr6 = no_arg,
+                      const Arg& ptr7 = no_arg,
+                      const Arg& ptr8 = no_arg,
+                      const Arg& ptr9 = no_arg,
+                      const Arg& ptr10 = no_arg,
+                      const Arg& ptr11 = no_arg,
+                      const Arg& ptr12 = no_arg,
+                      const Arg& ptr13 = no_arg,
+                      const Arg& ptr14 = no_arg,
+                      const Arg& ptr15 = no_arg,
+                      const Arg& ptr16 = no_arg) const;
+
+  bool Replace(const StringPiece& rewrite,
+               string *str) const;
+
+  int GlobalReplace(const StringPiece& rewrite,
+                    string *str) const;
+
+  bool Extract(const StringPiece &rewrite,
+               const StringPiece &text,
+               string *out) const;
+
+  // Escapes all potentially meaningful regexp characters in
+  // 'unquoted'.  The returned string, used as a regular expression,
+  // will exactly match the original string.  For example,
+  //           1.5-2.0?
+  // may become:
+  //           1\.5\-2\.0\?
+  // Note QuoteMeta behaves the same as perl's QuoteMeta function,
+  // *except* that it escapes the NUL character (\0) as backslash + 0,
+  // rather than backslash + NUL.
+  static string QuoteMeta(const StringPiece& unquoted);
+
+
+  /***** Generic matching interface *****/
+
+  // Type of match (TODO: Should be restructured as part of RE_Options)
+  enum Anchor {
+    UNANCHORED,         // No anchoring
+    ANCHOR_START,       // Anchor at start only
+    ANCHOR_BOTH         // Anchor at start and end
+  };
+
+  // General matching routine.  Stores the length of the match in
+  // "*consumed" if successful.
+  bool DoMatch(const StringPiece& text,
+               Anchor anchor,
+               int* consumed,
+               const Arg* const* args, int n) const;
+
+  // Return the number of capturing subpatterns, or -1 if the
+  // regexp wasn't valid on construction.
+  int NumberOfCapturingGroups() const;
+
+  // The default value for an argument, to indicate the end of the argument
+  // list. This must be used only in optional argument defaults. It should NOT
+  // be passed explicitly. Some people have tried to use it like this:
+  //
+  //   FullMatch(x, y, &z, no_arg, &w);
+  //
+  // This is a mistake, and will not work.
+  static Arg no_arg;
+
+ private:
+
+  void Init(const string& pattern, const RE_Options* options);
+  void Cleanup();
+
+  // Match against "text", filling in "vec" (up to "vecsize" * 2/3) with
+  // pairs of integers for the beginning and end positions of matched
+  // text.  The first pair corresponds to the entire matched text;
+  // subsequent pairs correspond, in order, to parentheses-captured
+  // matches.  Returns the number of pairs (one more than the number of
+  // the last subpattern with a match) if matching was successful
+  // and zero if the match failed.
+  // I.e. for RE("(foo)|(bar)|(baz)") it will return 2, 3, and 4 when matching
+  // against "foo", "bar", and "baz" respectively.
+  // When matching RE("(foo)|hello") against "hello", it will return 1.
+  // But the values for all subpattern are filled in into "vec".
+  int TryMatch(const StringPiece& text,
+               int startpos,
+               Anchor anchor,
+               bool empty_ok,
+               int *vec,
+               int vecsize) const;
+
+  // Append the "rewrite" string, with backslash subsitutions from "text"
+  // and "vec", to string "out".
+  bool Rewrite(string *out,
+               const StringPiece& rewrite,
+               const StringPiece& text,
+               int *vec,
+               int veclen) const;
+
+  // internal implementation for DoMatch
+  bool DoMatchImpl(const StringPiece& text,
+                   Anchor anchor,
+                   int* consumed,
+                   const Arg* const args[],
+                   int n,
+                   int* vec,
+                   int vecsize) const;
+
+  // Compile the regexp for the specified anchoring mode
+  pcre* Compile(Anchor anchor);
+
+  string        pattern_;
+  RE_Options    options_;
+  pcre*         re_full_;       // For full matches
+  pcre*         re_partial_;    // For partial matches
+  const string* error_;         // Error indicator (or points to empty string)
+};
+
+}   // namespace pcrecpp
+
+#endif /* _PCRECPP_H */
diff --git a/8.31/pcrecpp_internal.h b/8.31/pcrecpp_internal.h
new file mode 100644
index 0000000..827f9e0
--- /dev/null
+++ b/8.31/pcrecpp_internal.h
@@ -0,0 +1,71 @@
+/*************************************************
+*       Perl-Compatible Regular Expressions      *
+*************************************************/
+
+/*
+Copyright (c) 2005, Google Inc.
+All rights reserved.
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+#ifndef PCRECPP_INTERNAL_H
+#define PCRECPP_INTERNAL_H
+
+/* When compiling a DLL for Windows, the exported symbols have to be declared
+using some MS magic. I found some useful information on this web page:
+http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
+information there, using __declspec(dllexport) without "extern" we have a
+definition; with "extern" we have a declaration. The settings here override the
+setting in pcre.h. We use:
+
+  PCRECPP_EXP_DECL       for declarations
+  PCRECPP_EXP_DEFN       for definitions of exported functions
+
+*/
+
+#ifndef PCRECPP_EXP_DECL
+#  ifdef _WIN32
+#    ifndef PCRE_STATIC
+#      define PCRECPP_EXP_DECL       extern __declspec(dllexport)
+#      define PCRECPP_EXP_DEFN       __declspec(dllexport)
+#    else
+#      define PCRECPP_EXP_DECL       extern
+#      define PCRECPP_EXP_DEFN
+#    endif
+#  else
+#    define PCRECPP_EXP_DECL         extern
+#    define PCRECPP_EXP_DEFN
+#  endif
+#endif
+
+#endif  /* PCRECPP_INTERNAL_H */
+
+/* End of pcrecpp_internal.h */
diff --git a/8.31/pcrecpparg.h b/8.31/pcrecpparg.h
new file mode 100644
index 0000000..b4f9c3f
--- /dev/null
+++ b/8.31/pcrecpparg.h
@@ -0,0 +1,174 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sanjay Ghemawat
+
+#ifndef _PCRECPPARG_H
+#define _PCRECPPARG_H
+
+#include <stdlib.h>    // for NULL
+#include <string>
+
+#include <pcre.h>
+
+namespace pcrecpp {
+
+class StringPiece;
+
+// Hex/Octal/Binary?
+
+// Special class for parsing into objects that define a ParseFrom() method
+template <class T>
+class _RE_MatchObject {
+ public:
+  static inline bool Parse(const char* str, int n, void* dest) {
+    if (dest == NULL) return true;
+    T* object = reinterpret_cast<T*>(dest);
+    return object->ParseFrom(str, n);
+  }
+};
+
+class PCRECPP_EXP_DEFN Arg {
+ public:
+  // Empty constructor so we can declare arrays of Arg
+  Arg();
+
+  // Constructor specially designed for NULL arguments
+  Arg(void*);
+
+  typedef bool (*Parser)(const char* str, int n, void* dest);
+
+// Type-specific parsers
+#define PCRE_MAKE_PARSER(type,name)                             \
+  Arg(type* p) : arg_(p), parser_(name) { }                     \
+  Arg(type* p, Parser parser) : arg_(p), parser_(parser) { }
+
+
+  PCRE_MAKE_PARSER(char,               parse_char);
+  PCRE_MAKE_PARSER(unsigned char,      parse_uchar);
+  PCRE_MAKE_PARSER(short,              parse_short);
+  PCRE_MAKE_PARSER(unsigned short,     parse_ushort);
+  PCRE_MAKE_PARSER(int,                parse_int);
+  PCRE_MAKE_PARSER(unsigned int,       parse_uint);
+  PCRE_MAKE_PARSER(long,               parse_long);
+  PCRE_MAKE_PARSER(unsigned long,      parse_ulong);
+#if 1
+  PCRE_MAKE_PARSER(long long,          parse_longlong);
+#endif
+#if 1
+  PCRE_MAKE_PARSER(unsigned long long, parse_ulonglong);
+#endif
+  PCRE_MAKE_PARSER(float,              parse_float);
+  PCRE_MAKE_PARSER(double,             parse_double);
+  PCRE_MAKE_PARSER(std::string,        parse_string);
+  PCRE_MAKE_PARSER(StringPiece,        parse_stringpiece);
+
+#undef PCRE_MAKE_PARSER
+
+  // Generic constructor
+  template <class T> Arg(T*, Parser parser);
+  // Generic constructor template
+  template <class T> Arg(T* p)
+    : arg_(p), parser_(_RE_MatchObject<T>::Parse) {
+  }
+
+  // Parse the data
+  bool Parse(const char* str, int n) const;
+
+ private:
+  void*         arg_;
+  Parser        parser_;
+
+  static bool parse_null          (const char* str, int n, void* dest);
+  static bool parse_char          (const char* str, int n, void* dest);
+  static bool parse_uchar         (const char* str, int n, void* dest);
+  static bool parse_float         (const char* str, int n, void* dest);
+  static bool parse_double        (const char* str, int n, void* dest);
+  static bool parse_string        (const char* str, int n, void* dest);
+  static bool parse_stringpiece   (const char* str, int n, void* dest);
+
+#define PCRE_DECLARE_INTEGER_PARSER(name)                                   \
+ private:                                                                   \
+  static bool parse_ ## name(const char* str, int n, void* dest);           \
+  static bool parse_ ## name ## _radix(                                     \
+    const char* str, int n, void* dest, int radix);                         \
+ public:                                                                    \
+  static bool parse_ ## name ## _hex(const char* str, int n, void* dest);   \
+  static bool parse_ ## name ## _octal(const char* str, int n, void* dest); \
+  static bool parse_ ## name ## _cradix(const char* str, int n, void* dest)
+
+  PCRE_DECLARE_INTEGER_PARSER(short);
+  PCRE_DECLARE_INTEGER_PARSER(ushort);
+  PCRE_DECLARE_INTEGER_PARSER(int);
+  PCRE_DECLARE_INTEGER_PARSER(uint);
+  PCRE_DECLARE_INTEGER_PARSER(long);
+  PCRE_DECLARE_INTEGER_PARSER(ulong);
+  PCRE_DECLARE_INTEGER_PARSER(longlong);
+  PCRE_DECLARE_INTEGER_PARSER(ulonglong);
+
+#undef PCRE_DECLARE_INTEGER_PARSER
+};
+
+inline Arg::Arg() : arg_(NULL), parser_(parse_null) { }
+inline Arg::Arg(void* p) : arg_(p), parser_(parse_null) { }
+
+inline bool Arg::Parse(const char* str, int n) const {
+  return (*parser_)(str, n, arg_);
+}
+
+// This part of the parser, appropriate only for ints, deals with bases
+#define MAKE_INTEGER_PARSER(type, name) \
+  inline Arg Hex(type* ptr) { \
+    return Arg(ptr, Arg::parse_ ## name ## _hex); } \
+  inline Arg Octal(type* ptr) { \
+    return Arg(ptr, Arg::parse_ ## name ## _octal); } \
+  inline Arg CRadix(type* ptr) { \
+    return Arg(ptr, Arg::parse_ ## name ## _cradix); }
+
+MAKE_INTEGER_PARSER(short,              short)     /*                        */
+MAKE_INTEGER_PARSER(unsigned short,     ushort)    /*                        */
+MAKE_INTEGER_PARSER(int,                int)       /* Don't use semicolons   */
+MAKE_INTEGER_PARSER(unsigned int,       uint)      /* after these statement  */
+MAKE_INTEGER_PARSER(long,               long)      /* because they can cause */
+MAKE_INTEGER_PARSER(unsigned long,      ulong)     /* compiler warnings if   */
+#if 1                          /* the checking level is  */
+MAKE_INTEGER_PARSER(long long,          longlong)  /* turned up high enough. */
+#endif                                             /*                        */
+#if 1                         /*                        */
+MAKE_INTEGER_PARSER(unsigned long long, ulonglong) /*                        */
+#endif
+
+#undef PCRE_IS_SET
+#undef PCRE_SET_OR_CLEAR
+#undef MAKE_INTEGER_PARSER
+
+}   // namespace pcrecpp
+
+
+#endif /* _PCRECPPARG_H */
diff --git a/8.31/pcrecpparg.h.in b/8.31/pcrecpparg.h.in
new file mode 100644
index 0000000..61bcab5
--- /dev/null
+++ b/8.31/pcrecpparg.h.in
@@ -0,0 +1,174 @@
+// Copyright (c) 2005, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sanjay Ghemawat
+
+#ifndef _PCRECPPARG_H
+#define _PCRECPPARG_H
+
+#include <stdlib.h>    // for NULL
+#include <string>
+
+#include <pcre.h>
+
+namespace pcrecpp {
+
+class StringPiece;
+
+// Hex/Octal/Binary?
+
+// Special class for parsing into objects that define a ParseFrom() method
+template <class T>
+class _RE_MatchObject {
+ public:
+  static inline bool Parse(const char* str, int n, void* dest) {
+    if (dest == NULL) return true;
+    T* object = reinterpret_cast<T*>(dest);
+    return object->ParseFrom(str, n);
+  }
+};
+
+class PCRECPP_EXP_DEFN Arg {
+ public:
+  // Empty constructor so we can declare arrays of Arg
+  Arg();
+
+  // Constructor specially designed for NULL arguments
+  Arg(void*);
+
+  typedef bool (*Parser)(const char* str, int n, void* dest);
+
+// Type-specific parsers
+#define PCRE_MAKE_PARSER(type,name)                             \
+  Arg(type* p) : arg_(p), parser_(name) { }                     \
+  Arg(type* p, Parser parser) : arg_(p), parser_(parser) { }
+
+
+  PCRE_MAKE_PARSER(char,               parse_char);
+  PCRE_MAKE_PARSER(unsigned char,      parse_uchar);
+  PCRE_MAKE_PARSER(short,              parse_short);
+  PCRE_MAKE_PARSER(unsigned short,     parse_ushort);
+  PCRE_MAKE_PARSER(int,                parse_int);
+  PCRE_MAKE_PARSER(unsigned int,       parse_uint);
+  PCRE_MAKE_PARSER(long,               parse_long);
+  PCRE_MAKE_PARSER(unsigned long,      parse_ulong);
+#if @pcre_have_long_long@
+  PCRE_MAKE_PARSER(long long,          parse_longlong);
+#endif
+#if @pcre_have_ulong_long@
+  PCRE_MAKE_PARSER(unsigned long long, parse_ulonglong);
+#endif
+  PCRE_MAKE_PARSER(float,              parse_float);
+  PCRE_MAKE_PARSER(double,             parse_double);
+  PCRE_MAKE_PARSER(std::string,        parse_string);
+  PCRE_MAKE_PARSER(StringPiece,        parse_stringpiece);
+
+#undef PCRE_MAKE_PARSER
+
+  // Generic constructor
+  template <class T> Arg(T*, Parser parser);
+  // Generic constructor template
+  template <class T> Arg(T* p)
+    : arg_(p), parser_(_RE_MatchObject<T>::Parse) {
+  }
+
+  // Parse the data
+  bool Parse(const char* str, int n) const;
+
+ private:
+  void*         arg_;
+  Parser        parser_;
+
+  static bool parse_null          (const char* str, int n, void* dest);
+  static bool parse_char          (const char* str, int n, void* dest);
+  static bool parse_uchar         (const char* str, int n, void* dest);
+  static bool parse_float         (const char* str, int n, void* dest);
+  static bool parse_double        (const char* str, int n, void* dest);
+  static bool parse_string        (const char* str, int n, void* dest);
+  static bool parse_stringpiece   (const char* str, int n, void* dest);
+
+#define PCRE_DECLARE_INTEGER_PARSER(name)                                   \
+ private:                                                                   \
+  static bool parse_ ## name(const char* str, int n, void* dest);           \
+  static bool parse_ ## name ## _radix(                                     \
+    const char* str, int n, void* dest, int radix);                         \
+ public:                                                                    \
+  static bool parse_ ## name ## _hex(const char* str, int n, void* dest);   \
+  static bool parse_ ## name ## _octal(const char* str, int n, void* dest); \
+  static bool parse_ ## name ## _cradix(const char* str, int n, void* dest)
+
+  PCRE_DECLARE_INTEGER_PARSER(short);
+  PCRE_DECLARE_INTEGER_PARSER(ushort);
+  PCRE_DECLARE_INTEGER_PARSER(int);
+  PCRE_DECLARE_INTEGER_PARSER(uint);
+  PCRE_DECLARE_INTEGER_PARSER(long);
+  PCRE_DECLARE_INTEGER_PARSER(ulong);
+  PCRE_DECLARE_INTEGER_PARSER(longlong);
+  PCRE_DECLARE_INTEGER_PARSER(ulonglong);
+
+#undef PCRE_DECLARE_INTEGER_PARSER
+};
+
+inline Arg::Arg() : arg_(NULL), parser_(parse_null) { }
+inline Arg::Arg(void* p) : arg_(p), parser_(parse_null) { }
+
+inline bool Arg::Parse(const char* str, int n) const {
+  return (*parser_)(str, n, arg_);
+}
+
+// This part of the parser, appropriate only for ints, deals with bases
+#define MAKE_INTEGER_PARSER(type, name) \
+  inline Arg Hex(type* ptr) { \
+    return Arg(ptr, Arg::parse_ ## name ## _hex); } \
+  inline Arg Octal(type* ptr) { \
+    return Arg(ptr, Arg::parse_ ## name ## _octal); } \
+  inline Arg CRadix(type* ptr) { \
+    return Arg(ptr, Arg::parse_ ## name ## _cradix); }
+
+MAKE_INTEGER_PARSER(short,              short)     /*                        */
+MAKE_INTEGER_PARSER(unsigned short,     ushort)    /*                        */
+MAKE_INTEGER_PARSER(int,                int)       /* Don't use semicolons   */
+MAKE_INTEGER_PARSER(unsigned int,       uint)      /* after these statement  */
+MAKE_INTEGER_PARSER(long,               long)      /* because they can cause */
+MAKE_INTEGER_PARSER(unsigned long,      ulong)     /* compiler warnings if   */
+#if @pcre_have_long_long@                          /* the checking level is  */
+MAKE_INTEGER_PARSER(long long,          longlong)  /* turned up high enough. */
+#endif                                             /*                        */
+#if @pcre_have_ulong_long@                         /*                        */
+MAKE_INTEGER_PARSER(unsigned long long, ulonglong) /*                        */
+#endif
+
+#undef PCRE_IS_SET
+#undef PCRE_SET_OR_CLEAR
+#undef MAKE_INTEGER_PARSER
+
+}   // namespace pcrecpp
+
+
+#endif /* _PCRECPPARG_H */
diff --git a/8.31/pcregexp.pas b/8.31/pcregexp.pas
new file mode 100644
index 0000000..77afd56
--- /dev/null
+++ b/8.31/pcregexp.pas
@@ -0,0 +1,845 @@
+{
+  pcRegExp - Perl compatible regular expressions for Virtual Pascal
+  (c) 2001 Peter S. Voronov aka Chem O'Dun <petervrn@yahoo.com>
+
+  Based on PCRE library interface unit for Virtual Pascal.
+  (c) 2001 Alexander Tokarev <dwalin@dwalin.ru>
+
+  The current PCRE version is: 3.7
+
+  This software may be distributed under the terms of the modified BSD license
+  Copyright (c) 2001, Alexander Tokarev
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name of the <ORGANIZATION> nor the names of its contributors
+      may be used to endorse or promote products derived from this software without
+      specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+  The PCRE library is written by: Philip Hazel <ph10@cam.ac.uk>
+  Copyright (c) 1997-2004 University of Cambridge
+
+  AngelsHolocaust 4-11-04 updated to use version v5.0
+  (INFO: this is regex-directed, NFA)
+  AH:  9-11-04 - pcre_free: removed var, pcre already gives the ptr, now
+			    everything works as it should (no more crashes)
+		 -> removed CheckRegExp because pcre handles errors perfectly
+      10-11-04 - added pcError (errorhandling), pcInit
+      13-11-04 - removed the ErrorPos = 0 check -> always print erroroffset
+      17-10-05 - support for \1-\9 backreferences in TpcRegExp.GetReplStr
+      17-02-06 - added RunTimeOptions: caller can set options while searching
+      19-02-06 - added SearchOfs(): let PCRE use the complete string and offset
+		 into the string itself
+      20-12-06 - support for version 7.0
+      27.08.08 - support for v7.7
+}
+
+{$H+} {$DEFINE PCRE_3_7} {$DEFINE PCRE_5_0} {$DEFINE PCRE_7_0} {$DEFINE PCRE_7_7}
+
+Unit pcregexp;
+
+Interface
+
+uses objects;
+
+Type
+ PpcRegExp = ^TpcRegExp;
+// TpcRegExp = object
+ TpcRegExp = object(TObject)
+  MatchesCount: integer;
+  RegExpC, RegExpExt : Pointer;
+  Matches:Pointer;
+  RegExp: shortstring;
+  SourceLen: integer;
+  PartialMatch : boolean;
+  Error : boolean;
+  ErrorMsg : Pchar;
+  ErrorPos : integer;
+  RunTimeOptions: Integer; // options which can be set by the caller
+  constructor Init(const ARegExp : shortstring; AOptions : integer; ALocale : Pointer);
+  function Search(AStr: Pchar; ALen : longint) : boolean; virtual;
+  function SearchNext( AStr: Pchar; ALen : longint) : boolean; virtual;
+  function SearchOfs ( AStr: Pchar; ALen, AOfs : longint) : boolean; virtual;
+  function MatchSub(ANom: integer; var Pos, Len : longint) : boolean; virtual;
+  function MatchFull(var Pos, Len : longint) : boolean; virtual;
+  function GetSubStr(ANom: integer; AStr: Pchar) : string; virtual;
+  function GetFullStr(AStr: Pchar) : string; virtual;
+  function GetReplStr(AStr: Pchar; const ARepl: string) : string; virtual;
+  function GetPreSubStr(AStr: Pchar) : string; virtual;
+  function GetPostSubStr(AStr: Pchar) : string; virtual;
+  function ErrorStr : string; virtual;
+  destructor Done; virtual;
+ end;
+
+ function pcGrepMatch(WildCard, aStr: string; AOptions:integer; ALocale : Pointer): Boolean;
+ function pcGrepSub(WildCard, aStr, aRepl: string; AOptions:integer; ALocale : Pointer): string;
+
+ function pcFastGrepMatch(WildCard, aStr: string): Boolean;
+ function pcFastGrepSub(WildCard, aStr, aRepl: string): string;
+
+{$IFDEF PCRE_5_0}
+ function pcGetVersion : pchar;
+{$ENDIF}
+
+ function pcError (var pRegExp : Pointer) : Boolean;
+ function pcInit  (const Pattern: Shortstring; CaseSens: Boolean) : Pointer;
+
+Const { Options }
+ PCRE_CASELESS         = $0001;
+ PCRE_MULTILINE        = $0002;
+ PCRE_DOTALL           = $0004;
+ PCRE_EXTENDED         = $0008;
+ PCRE_ANCHORED         = $0010;
+ PCRE_DOLLAR_ENDONLY   = $0020;
+ PCRE_EXTRA            = $0040;
+ PCRE_NOTBOL           = $0080;
+ PCRE_NOTEOL           = $0100;
+ PCRE_UNGREEDY         = $0200;
+ PCRE_NOTEMPTY         = $0400;
+{$IFDEF PCRE_5_0}
+ PCRE_UTF8             = $0800;
+ PCRE_NO_AUTO_CAPTURE  = $1000;
+ PCRE_NO_UTF8_CHECK    = $2000;
+ PCRE_AUTO_CALLOUT     = $4000;
+ PCRE_PARTIAL          = $8000;
+{$ENDIF}
+{$IFDEF PCRE_7_0}
+ PCRE_DFA_SHORTEST     = $00010000;
+ PCRE_DFA_RESTART      = $00020000;
+ PCRE_FIRSTLINE        = $00040000;
+ PCRE_DUPNAMES         = $00080000;
+ PCRE_NEWLINE_CR       = $00100000;
+ PCRE_NEWLINE_LF       = $00200000;
+ PCRE_NEWLINE_CRLF     = $00300000;
+ PCRE_NEWLINE_ANY      = $00400000;
+ PCRE_NEWLINE_ANYCRLF  = $00500000;
+
+ PCRE_NEWLINE_BITS     = PCRE_NEWLINE_CR or PCRE_NEWLINE_LF or PCRE_NEWLINE_ANY;
+
+{$ENDIF}
+{$IFDEF PCRE_7_7}
+ PCRE_BSR_ANYCRLF      = $00800000;
+ PCRE_BSR_UNICODE      = $01000000;
+ PCRE_JAVASCRIPT_COMPAT= $02000000;
+{$ENDIF}
+
+ PCRE_COMPILE_ALLOWED_OPTIONS = PCRE_ANCHORED + PCRE_AUTO_CALLOUT + PCRE_CASELESS  +
+				PCRE_DOLLAR_ENDONLY + PCRE_DOTALL + PCRE_EXTENDED  +
+				PCRE_EXTRA + PCRE_MULTILINE + PCRE_NO_AUTO_CAPTURE +
+				PCRE_UNGREEDY + PCRE_UTF8 + PCRE_NO_UTF8_CHECK
+				{$IFDEF PCRE_7_0}
+				+ PCRE_DUPNAMES + PCRE_FIRSTLINE + PCRE_NEWLINE_BITS
+				{$ENDIF}
+				{$IFDEF PCRE_7_7}
+				+ PCRE_BSR_ANYCRLF + PCRE_BSR_UNICODE + PCRE_JAVASCRIPT_COMPAT
+				{$ENDIF}
+				;
+
+ PCRE_EXEC_ALLOWED_OPTIONS = PCRE_ANCHORED + PCRE_NOTBOL + PCRE_NOTEOL +
+			     PCRE_NOTEMPTY + PCRE_NO_UTF8_CHECK + PCRE_PARTIAL
+			     {$IFDEF PCRE_7_0}
+			     + PCRE_NEWLINE_BITS
+			     {$ENDIF}
+			     {$IFDEF PCRE_7_7}
+			     + PCRE_BSR_ANYCRLF + PCRE_BSR_UNICODE
+			     {$ENDIF}
+			     ;
+
+{$IFDEF PCRE_7_0}
+ PCRE_DFA_EXEC_ALLOWED_OPTIONS = PCRE_ANCHORED + PCRE_NOTBOL + PCRE_NOTEOL +
+				 PCRE_NOTEMPTY + PCRE_NO_UTF8_CHECK + PCRE_PARTIAL +
+				 PCRE_DFA_SHORTEST + PCRE_DFA_RESTART +
+				 PCRE_NEWLINE_BITS
+				 {$IFDEF PCRE_7_7}
+				 + PCRE_BSR_ANYCRLF + PCRE_BSR_UNICODE
+				 {$ENDIF}
+				 ;
+{$ENDIF}
+
+{ Exec-time and get/set-time error codes }
+ PCRE_ERROR_NOMATCH        =  -1;
+ PCRE_ERROR_NULL	   =  -2;
+ PCRE_ERROR_BADOPTION      =  -3;
+ PCRE_ERROR_BADMAGIC       =  -4;
+ PCRE_ERROR_UNKNOWN_MODE   =  -5;
+ PCRE_ERROR_NOMEMORY       =  -6;
+ PCRE_ERROR_NOSUBSTRING    =  -7;
+{$IFDEF PCRE_5_0}
+ PCRE_ERROR_MATCHLIMIT     =  -8;
+ PCRE_ERROR_CALLOUT        =  -9;  { Never used by PCRE itself }
+ PCRE_ERROR_BADUTF8        = -10;
+ PCRE_ERROR_BADUTF8_OFFSET = -11;
+ PCRE_ERROR_PARTIAL        = -12;
+ PCRE_ERROR_BADPARTIAL     = -13;
+ PCRE_ERROR_INTERNAL       = -14;
+ PCRE_ERROR_BADCOUNT       = -15;
+{$ENDIF}
+{$IFDEF PCRE_7_0}
+ PCRE_ERROR_DFA_UITEM      = -16;
+ PCRE_ERROR_DFA_UCOND      = -17;
+ PCRE_ERROR_DFA_UMLIMIT    = -18;
+ PCRE_ERROR_DFA_WSSIZE     = -19;
+ PCRE_ERROR_DFA_RECURSE    = -20;
+ PCRE_ERROR_RECURSIONLIMIT = -21;
+ PCRE_ERROR_NULLWSLIMIT    = -22;
+ PCRE_ERROR_BADNEWLINE     = -23;
+{$ENDIF}
+
+{ Request types for pcre_fullinfo() }
+
+ PCRE_INFO_OPTIONS         =  0;
+ PCRE_INFO_SIZE 	   =  1;
+ PCRE_INFO_CAPTURECOUNT    =  2;
+ PCRE_INFO_BACKREFMAX      =  3;
+ PCRE_INFO_FIRSTBYTE       =  4;
+ PCRE_INFO_FIRSTCHAR       =  4; { For backwards compatibility }
+ PCRE_INFO_FIRSTTABLE      =  5;
+{$IFDEF PCRE_5_0}
+ PCRE_INFO_LASTLITERAL     =  6;
+ PCRE_INFO_NAMEENTRYSIZE   =  7;
+ PCRE_INFO_NAMECOUNT       =  8;
+ PCRE_INFO_NAMETABLE       =  9;
+ PCRE_INFO_STUDYSIZE       = 10;
+ PCRE_INFO_DEFAULT_TABLES  = 11;
+{$ENDIF PCRE_5_0}
+{$IFDEF PCRE_7_7}
+ PCRE_INFO_OKPARTIAL       = 12;
+ PCRE_INFO_JCHANGED        = 13;
+ PCRE_INFO_HASCRORLF       = 14;
+{$ENDIF}
+
+{ Request types for pcre_config() }
+{$IFDEF PCRE_5_0}
+ PCRE_CONFIG_UTF8       	    = 0;
+ PCRE_CONFIG_NEWLINE    	    = 1;
+ PCRE_CONFIG_LINK_SIZE  	    = 2;
+ PCRE_CONFIG_POSIX_MALLOC_THRESHOLD = 3;
+ PCRE_CONFIG_MATCH_LIMIT	    = 4;
+ PCRE_CONFIG_STACKRECURSE           = 5;
+ PCRE_CONFIG_UNICODE_PROPERTIES     = 6;
+{$ENDIF PCRE_5_0}
+{$IFDEF PCRE_7_0}
+ PCRE_CONFIG_MATCH_LIMIT_RECURSION  = 7;
+{$ENDIF}
+{$IFDEF PCRE_7_7}
+ PCRE_CONFIG_BSR		    = 8;
+{$ENDIF}
+
+{ Bit flags for the pcre_extra structure }
+{$IFDEF PCRE_5_0}
+ PCRE_EXTRA_STUDY_DATA  	  = $0001;
+ PCRE_EXTRA_MATCH_LIMIT 	  = $0002;
+ PCRE_EXTRA_CALLOUT_DATA	  = $0004;
+ PCRE_EXTRA_TABLES      	  = $0008;
+{$ENDIF PCRE_5_0}
+{$IFDEF PCRE_7_0}
+ PCRE_EXTRA_MATCH_LIMIT_RECURSION = $0010;
+{$ENDIF}
+
+Const
+// DefaultOptions : integer = 0;
+ DefaultLocaleTable : pointer = nil;
+
+{$IFDEF PCRE_5_0}
+{ The structure for passing additional data to pcre_exec(). This is defined in
+such as way as to be extensible. Always add new fields at the end, in order to
+remain compatible. }
+
+type ppcre_extra = ^tpcre_extra;
+     tpcre_extra = record
+       flags : longint; 	       { Bits for which fields are set }
+       study_data : pointer;           { Opaque data from pcre_study() }
+       match_limit : longint;          { Maximum number of calls to match() }
+       callout_data : pointer;         { Data passed back in callouts }
+       tables : pointer;	       { Pointer to character tables }
+       match_limit_recursion: longint; { Max recursive calls to match() }
+     end;
+
+type ppcre_callout_block = ^pcre_callout_block;
+     pcre_callout_block = record
+       version,
+  (* ------------------------ Version 0 ------------------------------- *)
+       callout_number : integer;
+       offset_vector : pointer;
+       subject : pchar;
+       subject_length, start_match, current_position, capture_top,
+       capture_last : integer;
+       callout_data : pointer;
+  (* ------------------- Added for Version 1 -------------------------- *)
+       pattern_position, next_item_length : integer;
+     end;
+{$ENDIF PCRE_5_0}
+
+{$OrgName+}
+{$IFDEF VIRTUALPASCAL} {&Cdecl+} {$ENDIF VIRTUALPASCAL}
+
+ { local replacement of external pcre memory management functions }
+ function pcre_malloc( size : integer ) : pointer;
+ procedure pcre_free( {var} p : pointer );
+{$IFDEF PCRE_5_0}
+ const pcre_stack_malloc: function ( size : integer ): pointer = pcre_malloc;
+       pcre_stack_free: procedure ( {var} p : pointer ) = pcre_free;
+ function pcre_callout(var p : ppcre_callout_block) : integer;
+{$ENDIF PCRE_5_0}
+{$IFDEF VIRTUALPASCAL} {&Cdecl-} {$ENDIF VIRTUALPASCAL}
+
+Implementation
+
+Uses strings, collect, messages, dnapp, commands, advance0, stringsx
+    {$IFDEF VIRTUALPASCAL} ,vpsyslow {$ENDIF VIRTUALPASCAL};
+
+Const
+ MAGIC_NUMBER = $50435245; { 'PCRE' }
+ MAX_MATCHES = 90; { changed in 3.5 version; should be divisible by 3, was 64}
+
+Type
+ PMatchArray = ^TMatchArray;
+ TMatchArray = array[0..( MAX_MATCHES * 3 )] of integer;
+
+ PRegExpCollection = ^TRegExpCollection;
+ TRegExpCollection =  object(TSortedCollection)
+   MaxRegExp : integer;
+   SearchRegExp : shortstring;
+   CompareModeInsert : boolean;
+   constructor Init(AMaxRegExp:integer);
+   procedure FreeItem(P: Pointer); virtual;
+   function  Compare(P1, P2: Pointer): Integer; virtual;
+   function  Find(ARegExp:shortstring;var P: PpcRegExp):boolean; virtual;
+   function CheckNew(ARegExp:shortstring):PpcRegExp;virtual;
+ end;
+
+Var
+ PRegExpCache : PRegExpCollection;
+
+
+{$IFDEF VIRTUALPASCAL} {&Cdecl+} {$ENDIF VIRTUALPASCAL}
+
+ { imported original pcre functions }
+
+ function pcre_compile( const pattern : PChar; options : integer;
+			var errorptr : PChar; var erroroffset : integer;
+			const tables : PChar ) : pointer {pcre}; external;
+{$IFDEF PCRE_7_0}
+ function pcre_compile2( const pattern : PChar; options : integer;
+			 var errorcodeptr : Integer;
+			 var errorptr : PChar; var erroroffset : integer;
+			 const tables : PChar ) : pointer {pcre}; external;
+{$ENDIF}
+{$IFDEF PCRE_5_0}
+ function pcre_config( what : integer; where : pointer) : integer; external;
+ function pcre_copy_named_substring( const code : pointer {pcre};
+				     const subject : pchar;
+				     var ovector : integer;
+				     stringcount : integer;
+				     const stringname : pchar;
+				     var buffer : pchar;
+				     size : integer) : integer; external;
+ function pcre_copy_substring( const subject : pchar; var ovector : integer;
+			       stringcount, stringnumber : integer;
+			       var buffer : pchar; size : integer )
+			       : integer; external;
+ function pcre_exec( const argument_re : pointer {pcre};
+		     const extra_data : pointer {pcre_extra};
+{$ELSE}
+ function pcre_exec( const external_re : pointer;
+		     const external_extra : pointer;
+{$ENDIF}
+		     const subject : PChar;
+		     length, start_offset, options : integer;
+		     offsets : pointer;
+		     offsetcount : integer ) : integer; external;
+{$IFDEF PCRE_7_0}
+ function pcre_dfa_exec( const argument_re : pointer {pcre};
+			 const extra_data : pointer {pcre_extra};
+			 const subject : pchar;
+			 length, start_offset, options : integer;
+			 offsets : pointer;
+			 offsetcount : integer;
+			 workspace : pointer;
+			 wscount : integer ) : integer; external;
+{$ENDIF}
+{$IFDEF PCRE_5_0}
+ procedure pcre_free_substring( const p : pchar ); external;
+ procedure pcre_free_substring_list( var p : pchar ); external;
+ function pcre_fullinfo( const argument_re : pointer {pcre};
+			 const extra_data : pointer {pcre_extra};
+			 what : integer;
+			 where : pointer ) : integer; external;
+ function pcre_get_named_substring( const code : pointer {pcre};
+				    const subject : pchar;
+				    var ovector : integer;
+				    stringcount : integer;
+				    const stringname : pchar;
+				    var stringptr : pchar ) : integer; external;
+ function pcre_get_stringnumber( const code : pointer {pcre};
+				 const stringname : pchar ) : integer; external;
+ function pcre_get_stringtable_entries( const code : pointer {pcre};
+					const stringname : pchar;
+					var firstptr,
+					    lastptr : pchar ) : integer; external;
+ function pcre_get_substring( const subject : pchar; var ovector : integer;
+			      stringcount, stringnumber : integer;
+			      var stringptr : pchar ) : integer; external;
+ function pcre_get_substring_list( const subject : pchar; var ovector : integer;
+				   stringcount : integer;
+				   listptr : pointer {const char ***listptr}) : integer; external;
+ function pcre_info( const argument_re : pointer {pcre};
+		     var optptr : integer;
+		     var first_byte : integer ) : integer; external;
+ function pcre_maketables : pchar; external;
+{$ENDIF}
+{$IFDEF PCRE_7_0}
+ function pcre_refcount( const argument_re : pointer {pcre};
+			 adjust : integer ) : pchar; external;
+{$ENDIF}
+ function pcre_study( const external_re : pointer {pcre};
+		      options : integer;
+		      var errorptr : PChar ) : pointer {pcre_extra}; external;
+{$IFDEF PCRE_5_0}
+ function pcre_version : pchar; external;
+{$ENDIF}
+
+ function pcre_malloc( size : integer ) : pointer;
+ begin
+  GetMem( result, size );
+ end;
+
+ procedure pcre_free( {var} p : pointer );
+ begin
+  if (p <> nil) then
+    FreeMem( p, 0 );
+  {@p := nil;}
+ end;
+
+{$IFDEF PCRE_5_0}
+(* Called from PCRE as a result of the (?C) item. We print out where we are in
+the match. Yield zero unless more callouts than the fail count, or the callout
+data is not zero. *)
+
+ function pcre_callout;
+ begin
+ end;
+{$ENDIF}
+
+{$IFDEF VIRTUALPASCAL} {&Cdecl-} {$ENDIF VIRTUALPASCAL}
+
+// Always include the newest version of the library
+{$IFDEF PCRE_7_7}
+  {$L pcre77.lib}
+{$ELSE}
+  {$IFDEF PCRE_7_0}
+    {$L pcre70.lib}
+  {$ELSE}
+    {$IFDEF PCRE_5_0}
+      {$L pcre50.lib}
+    {$ELSE}
+      {$IFDEF PCRE_3_7}
+	{$L pcre37.lib}
+      {$ENDIF PCRE_3_7}
+    {$ENDIF PCRE_5_0}
+  {$ENDIF PCRE_7_0}
+{$ENDIF PCRE_7_7}
+
+{TpcRegExp}
+
+ constructor TpcRegExp.Init(const ARegExp:shortstring; AOptions:integer; ALocale : Pointer);
+ var
+  pRegExp : PChar;
+ begin
+  RegExp:=ARegExp;
+  RegExpC:=nil;
+  RegExpExt:=nil;
+  Matches:=nil;
+  MatchesCount:=0;
+  Error:=true;
+  ErrorMsg:=nil;
+  ErrorPos:=0;
+  RunTimeOptions := 0;
+  if length(RegExp) < 255 then
+   begin
+    RegExp[length(RegExp)+1]:=#0;
+    pRegExp:=@RegExp[1];
+   end
+  else
+   begin
+    GetMem(pRegExp,length(RegExp)+1);
+    pRegExp:=strpcopy(pRegExp,RegExp);
+   end;
+  RegExpC := pcre_compile( pRegExp,
+			   AOptions and PCRE_COMPILE_ALLOWED_OPTIONS,
+			   ErrorMsg, ErrorPos, ALocale);
+  if length(RegExp) = 255 then
+   StrDispose(pRegExp);
+  if RegExpC = nil then
+   exit;
+  ErrorMsg:=nil;
+  RegExpExt := pcre_study( RegExpC, 0, ErrorMsg );
+  if (RegExpExt = nil) and (ErrorMsg <> nil) then
+   begin
+    pcre_free(RegExpC);
+    exit;
+   end;
+  GetMem(Matches,SizeOf(TMatchArray));
+  Error:=false;
+ end;
+
+ destructor TpcRegExp.Done;
+ begin
+  if RegExpC <> nil then
+    pcre_free(RegExpC);
+  if RegExpExt <> nil then
+    pcre_free(RegExpExt);
+  if Matches <> nil then
+    FreeMem(Matches,SizeOf(TMatchArray));
+ end;
+
+ function TpcRegExp.SearchNext( AStr: Pchar; ALen : longint ) : boolean;
+ var Options: Integer;
+ begin // must handle PCRE_ERROR_PARTIAL here
+  Options := (RunTimeOptions or startup.MiscMultiData.cfgRegEx.DefaultOptions) and
+	     PCRE_EXEC_ALLOWED_OPTIONS;
+  if MatchesCount > 0 then
+    MatchesCount:=pcre_exec( RegExpC, RegExpExt, AStr, ALen, PMatchArray(Matches)^[1],
+			     Options, Matches, MAX_MATCHES ) else
+    MatchesCount:=pcre_exec( RegExpC, RegExpExt, AStr, ALen, 0,
+			     Options, Matches, MAX_MATCHES );
+{  if MatchesCount = 0 then
+    MatchesCount := MatchesCount div 3;}
+  PartialMatch := MatchesCount = PCRE_ERROR_PARTIAL;
+  SearchNext := MatchesCount > 0;
+ end;
+
+ function TpcRegExp.Search( AStr: Pchar; ALen : longint):boolean;
+ begin
+  MatchesCount:=0;
+  Search:=SearchNext(AStr,ALen);
+  SourceLen:=ALen;
+ end;
+
+ function TpcRegExp.SearchOfs( AStr: Pchar; ALen, AOfs: longint ) : boolean;
+ var Options: Integer;
+ begin
+  MatchesCount:=0;
+  Options := (RunTimeOptions or startup.MiscMultiData.cfgRegEx.DefaultOptions) and
+	     PCRE_EXEC_ALLOWED_OPTIONS;
+  MatchesCount:=pcre_exec( RegExpC, RegExpExt, AStr, ALen, AOfs,
+			   Options, Matches, MAX_MATCHES );
+  PartialMatch := MatchesCount = PCRE_ERROR_PARTIAL;
+  SearchOfs := MatchesCount > 0;
+  SourceLen := ALen-AOfs;
+ end;
+
+ function TpcRegExp.MatchSub(ANom:integer; var Pos,Len:longint):boolean;
+ begin
+  if (MatchesCount > 0) and (ANom <= (MatchesCount-1)) then
+   begin
+    ANom:=ANom*2;
+    Pos:=PMatchArray(Matches)^[ANom];
+    Len:=PMatchArray(Matches)^[ANom+1]-Pos;
+    MatchSub:=true;
+   end
+  else
+   MatchSub:=false;
+ end;
+
+ function TpcRegExp.MatchFull(var Pos,Len:longint):boolean;
+ begin
+  MatchFull:=MatchSub(0,Pos,Len);
+ end;
+
+ function TpcRegExp.GetSubStr(ANom: integer; AStr: Pchar):string;
+ var
+  s: ansistring;
+  pos,len: longint;
+ begin
+  s:='';
+  if MatchSub(ANom, pos, len) then
+   begin
+    setlength(s, len);
+    Move(AStr[pos], s[1], len);
+   end;
+  GetSubStr:=s;
+ end;
+
+ function TpcRegExp.GetPreSubStr(AStr: Pchar):string;
+ var
+  s: ansistring;
+  l: longint;
+ begin
+  s:='';
+  if (MatchesCount > 0) then
+   begin
+    l:=PMatchArray(Matches)^[0]-1;
+    if l > 0 then
+     begin
+      setlength(s,l);
+      Move(AStr[1],s[1],l);
+     end;
+   end;
+  GetPreSubStr:=s;
+ end;
+
+ function TpcRegExp.GetPostSubStr(AStr: Pchar):string;
+ var
+  s: ansistring;
+  l: longint;
+  ANom: integer;
+ begin
+  s:='';
+  if (MatchesCount > 0) then
+   begin
+    ANom:=(MatchesCount-1){*2} shl 1;
+    l:=SourceLen-PMatchArray(Matches)^[ANom+1]+1;
+    if l > 0 then
+     begin
+      setlength(s,l);
+      Move(AStr[PMatchArray(Matches)^[ANom+1]],s[1],l);
+     end;
+   end;
+  GetPostSubStr:=s;
+ end;
+
+
+ function TpcRegExp.GetFullStr(AStr: Pchar):string;
+ var
+  s: ansistring;
+  l: longint;
+ begin
+  GetFullStr:=GetSubStr(0,AStr);
+ end;
+
+ function TpcRegExp.GetReplStr(AStr: Pchar; const ARepl: string):string;
+ var
+  s: ansistring;
+  l,i,lasti: longint;
+ begin
+  l:=length(ARepl);
+  i:=1;
+  lasti:=1;
+  s:='';
+  while i <= l do
+   begin
+    case ARepl[i] of
+     '\' :
+      begin
+       if i < l then
+	begin
+	 s:=s+copy(ARepl,lasti,i-lasti){+ARepl[i+1]};
+	 {AH 17-10-05 support for POSIX \1-\9 backreferences}
+	 case ARepl[i+1] of
+	  '0' : s:=s+GetFullStr(AStr);
+	  '1'..'9' : s:=s+GetSubStr(ord(ARepl[i+1])-ord('0'),AStr);
+	  else s:=s+ARepl[i+1]; // copy the escaped character
+	 end;
+	end;
+       inc(i);
+       lasti:=i+1;
+      end;
+     '$' :
+      begin
+       if i < l then
+	begin
+	 s:=s+copy(ARepl,lasti,i-lasti);
+	 case ARepl[i+1] of
+	  '&' : s:=s+GetFullStr(AStr);
+	  '1'..'9' : s:=s+GetSubStr(ord(ARepl[i+1])-ord('0'),AStr);
+	  '`' : s:=s+GetPreSubStr(AStr);
+	  #39 : s:=s+GetPostSubStr(AStr);
+	 end;
+	end;
+       inc(i);
+       lasti:=i+1;
+      end;
+    end;
+    inc(i);
+   end;
+  if lasti <= {AH 25-10-2004 added =, else l==1 won't work} l then
+    s:=s+copy(ARepl,lasti,l-lasti+1);
+  GetReplStr:=s;
+ end;
+
+ function TpcRegExp.ErrorStr:string;
+  begin
+   ErrorStr:=StrPas(ErrorMsg);
+  end;
+
+{TRegExpCollection}
+
+constructor TRegExpCollection.Init(AMaxRegExp: integer);
+begin
+ Inherited Init(1,1);
+ MaxRegExp:=AMaxRegExp;
+ CompareModeInsert:=true;
+end;
+
+procedure TRegExpCollection.FreeItem(P: Pointer);
+begin
+ if P <> nil then
+  begin
+   Dispose(PpcRegExp(P),Done);
+  end;
+end;
+
+function  TRegExpCollection.Compare(P1, P2: Pointer): Integer;
+//var
+// l,l1,l2,i : byte;
+//// wPos: pchar;
+begin
+ if CompareModeInsert then
+  begin
+//   l1:=length(PpcRegExp(P1)^.RegExp);
+//   l2:=length(PpcRegExp(P2)^.RegExp);
+//   if l1 > l2 then l:=l2 else
+//      	     l:=l1;
+//   for i:=1 to l do
+//     if PpcRegExp(P1).RegExp[i] <> PpcRegExp(P2).RegExp[i] then break;
+//   if i <=l then
+//     Compare:=ord(PpcRegExp(P1).RegExp[i])-ord(PpcRegExp(P2).RegExp[i]) else
+//     Compare:=l1-l2;
+    Compare := stringsx.PasStrCmp(PpcRegExp(P1).RegExp, PpcRegExp(P2).RegExp, False);
+  end
+ else
+  begin
+//   l1:=length(PpcRegExp(P1)^.RegExp);
+//   l2:=length(SearchRegExp);
+//   if l1 > l2 then l:=l2 else
+//      	     l:=l1;
+//   for i:=1 to l do
+//     if PpcRegExp(P1).RegExp[i] <> SearchRegExp[i] then
+//     begin
+//       Compare:=ord(PpcRegExp(P1).RegExp[i])-ord(SearchRegExp[i]);
+//       break;
+//     end;
+//   if i > l then Compare:=l1-l2;
+    Compare := stringsx.PasStrCmp(PpcRegExp(P1).RegExp, SearchRegExp, False);
+  end;
+end;
+
+function  TRegExpCollection.Find(ARegExp:shortstring;var P: PpcRegExp):boolean;
+var I : integer;
+begin
+ CompareModeInsert:=false;
+ SearchRegExp:=ARegExp;
+ if Search(nil,I) then
+  begin
+   P:=PpcRegExp(At(I));
+   Find:=true;
+  end
+ else
+  begin
+   P:=nil;
+   Find:=false;
+  end;
+ CompareModeInsert:=true;
+end;
+
+function TRegExpCollection.CheckNew(ARegExp:shortstring):PpcRegExp;
+var
+ P : PpcRegExp;
+begin
+ if not Find(ARegExp,P) then
+  begin
+   if Count = MaxRegExp then
+    AtFree(0);
+   P:=New(ppcRegExp,Init(ARegExp,PCRE_CASELESS,nil));
+   Insert(P);
+  end;
+ CheckNew:=P;
+end;
+
+function pcGrepMatch(WildCard, aStr: string; AOptions:integer; ALocale : Pointer): Boolean;
+var
+ PpcRE:PpcRegExp;
+begin
+ PpcRE:=New(ppcRegExp,Init(WildCard,AOptions,Alocale));
+ pcGrepMatch:=PpcRE^.Search(pchar(AStr),Length(AStr));
+ Dispose(PpcRE,Done);
+end;
+
+function pcGrepSub(WildCard, aStr, aRepl: string; AOptions:integer; ALocale : Pointer): string;
+var
+ PpcRE:PpcRegExp;
+begin
+ PpcRE:=New(ppcRegExp,Init(WildCard,AOptions,Alocale));
+ if PpcRE^.Search(pchar(AStr),Length(AStr)) then
+  pcGrepSub:=PpcRE^.GetReplStr(pchar(AStr),ARepl)
+ else
+  pcGrepSub:='';
+ Dispose(PpcRE,Done);
+end;
+
+function pcFastGrepMatch(WildCard, aStr: string): Boolean;
+var
+ PpcRE:PpcRegExp;
+begin
+ PpcRE:=PRegExpCache^.CheckNew(WildCard);
+ pcFastGrepMatch:=PpcRE^.Search(pchar(AStr),Length(AStr));
+end;
+
+function pcFastGrepSub(WildCard, aStr, aRepl: string): string;
+var
+ PpcRE:PpcRegExp;
+begin
+ PpcRE:=PRegExpCache^.CheckNew(WildCard);
+ if PpcRE^.Search(pchar(AStr),Length(AStr)) then
+  pcFastGrepSub:=PpcRE^.GetReplStr(pchar(AStr),ARepl)
+ else
+  pcFastGrepSub:='';
+end;
+
+{$IFDEF PCRE_5_0}
+function pcGetVersion : pchar; assembler; {$FRAME-}{$USES none}
+asm
+  call pcre_version
+end;
+{$ENDIF PCRE_5_0}
+
+function pcError;
+var P: ppcRegExp absolute pRegExp;
+begin
+  Result := (P = nil) or P^.Error;
+  If Result and (P <> nil) then
+  begin
+{     if P^.ErrorPos = 0 then
+      MessageBox(GetString(erRegExpCompile)+'"'+P^.ErrorStr+'"', nil,mfConfirmation+mfOkButton)
+    else}
+      MessageBox(GetString(erRegExpCompile)+'"'+P^.ErrorStr+'"'+GetString(erRegExpCompPos),
+		 @P^.ErrorPos,mfConfirmation+mfOkButton);
+    Dispose(P, Done);
+    P:=nil;
+  end;
+end;
+
+function pcInit;
+var Options : Integer;
+begin
+  If CaseSens then Options := 0 else Options := PCRE_CASELESS;
+  Result := New( PpcRegExp, Init( Pattern,
+				  {DefaultOptions}
+				  startup.MiscMultiData.cfgRegEx.DefaultOptions or Options,
+				  DefaultLocaleTable) );
+end;
+
+Initialization
+ PRegExpCache:=New(PRegExpCollection,Init(64));
+Finalization
+ Dispose(PRegExpCache,Done);
+End.
diff --git a/8.31/pcreposix.h b/8.31/pcreposix.h
new file mode 100644
index 0000000..c77c0b0
--- /dev/null
+++ b/8.31/pcreposix.h
@@ -0,0 +1,146 @@
+/*************************************************
+*       Perl-Compatible Regular Expressions      *
+*************************************************/
+
+#ifndef _PCREPOSIX_H
+#define _PCREPOSIX_H
+
+/* This is the header for the POSIX wrapper interface to the PCRE Perl-
+Compatible Regular Expression library. It defines the things POSIX says should
+be there. I hope.
+
+            Copyright (c) 1997-2012 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+/* Have to include stdlib.h in order to ensure that size_t is defined. */
+
+#include <stdlib.h>
+
+/* Allow for C++ users */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Options, mostly defined by POSIX, but with some extras. */
+
+#define REG_ICASE     0x0001   /* Maps to PCRE_CASELESS */
+#define REG_NEWLINE   0x0002   /* Maps to PCRE_MULTILINE */
+#define REG_NOTBOL    0x0004   /* Maps to PCRE_NOTBOL */
+#define REG_NOTEOL    0x0008   /* Maps to PCRE_NOTEOL */
+#define REG_DOTALL    0x0010   /* NOT defined by POSIX; maps to PCRE_DOTALL */
+#define REG_NOSUB     0x0020   /* Maps to PCRE_NO_AUTO_CAPTURE */
+#define REG_UTF8      0x0040   /* NOT defined by POSIX; maps to PCRE_UTF8 */
+#define REG_STARTEND  0x0080   /* BSD feature: pass subject string by so,eo */
+#define REG_NOTEMPTY  0x0100   /* NOT defined by POSIX; maps to PCRE_NOTEMPTY */
+#define REG_UNGREEDY  0x0200   /* NOT defined by POSIX; maps to PCRE_UNGREEDY */
+#define REG_UCP       0x0400   /* NOT defined by POSIX; maps to PCRE_UCP */
+
+/* This is not used by PCRE, but by defining it we make it easier
+to slot PCRE into existing programs that make POSIX calls. */
+
+#define REG_EXTENDED  0
+
+/* Error values. Not all these are relevant or used by the wrapper. */
+
+enum {
+  REG_ASSERT = 1,  /* internal error ? */
+  REG_BADBR,       /* invalid repeat counts in {} */
+  REG_BADPAT,      /* pattern error */
+  REG_BADRPT,      /* ? * + invalid */
+  REG_EBRACE,      /* unbalanced {} */
+  REG_EBRACK,      /* unbalanced [] */
+  REG_ECOLLATE,    /* collation error - not relevant */
+  REG_ECTYPE,      /* bad class */
+  REG_EESCAPE,     /* bad escape sequence */
+  REG_EMPTY,       /* empty expression */
+  REG_EPAREN,      /* unbalanced () */
+  REG_ERANGE,      /* bad range inside [] */
+  REG_ESIZE,       /* expression too big */
+  REG_ESPACE,      /* failed to get memory */
+  REG_ESUBREG,     /* bad back reference */
+  REG_INVARG,      /* bad argument */
+  REG_NOMATCH      /* match failed */
+};
+
+
+/* The structure representing a compiled regular expression. */
+
+typedef struct {
+  void *re_pcre;
+  size_t re_nsub;
+  size_t re_erroffset;
+} regex_t;
+
+/* The structure in which a captured offset is returned. */
+
+typedef int regoff_t;
+
+typedef struct {
+  regoff_t rm_so;
+  regoff_t rm_eo;
+} regmatch_t;
+
+/* When an application links to a PCRE DLL in Windows, the symbols that are
+imported have to be identified as such. When building PCRE, the appropriate
+export settings are needed, and are set in pcreposix.c before including this
+file. */
+
+#if defined(_WIN32) && !defined(PCRE_STATIC) && !defined(PCREPOSIX_EXP_DECL)
+#  define PCREPOSIX_EXP_DECL  extern __declspec(dllimport)
+#  define PCREPOSIX_EXP_DEFN  __declspec(dllimport)
+#endif
+
+/* By default, we use the standard "extern" declarations. */
+
+#ifndef PCREPOSIX_EXP_DECL
+#  ifdef __cplusplus
+#    define PCREPOSIX_EXP_DECL  extern "C"
+#    define PCREPOSIX_EXP_DEFN  extern "C"
+#  else
+#    define PCREPOSIX_EXP_DECL  extern
+#    define PCREPOSIX_EXP_DEFN  extern
+#  endif
+#endif
+
+/* The functions */
+
+PCREPOSIX_EXP_DECL int regcomp(regex_t *, const char *, int);
+PCREPOSIX_EXP_DECL int regexec(const regex_t *, const char *, size_t,
+                     regmatch_t *, int);
+PCREPOSIX_EXP_DECL size_t regerror(int, const regex_t *, char *, size_t);
+PCREPOSIX_EXP_DECL void regfree(regex_t *);
+
+#ifdef __cplusplus
+}   /* extern "C" */
+#endif
+
+#endif /* End of pcreposix.h */
diff --git a/8.31/perltest.pl b/8.31/perltest.pl
new file mode 100644
index 0000000..ca32cd7
--- /dev/null
+++ b/8.31/perltest.pl
@@ -0,0 +1,236 @@
+#! /usr/bin/env perl
+
+# Program for testing regular expressions with perl to check that PCRE handles
+# them the same. This version supports /8 for UTF-8 testing. However, it needs
+# to have "use utf8" at the start for running the UTF-8 tests, but *not* for
+# the other tests. The only way I've found for doing this is to cat this line
+# in explicitly in the RunPerlTest script. I've also used this method to supply
+# "require Encode" for the UTF-8 tests, so that the main test will still run
+# where Encode is not installed.
+
+# use locale;  # With this included, \x0b matches \s!
+
+# Function for turning a string into a string of printing chars.
+
+#require Encode;
+
+sub pchars {
+my($t) = "";
+
+if ($utf8)
+  {
+  @p = unpack('U*', $_[0]);
+  foreach $c (@p)
+    {
+    if ($c >= 32 && $c < 127) { $t .= chr $c; }
+      else { $t .= sprintf("\\x{%02x}", $c);
+      }
+    }
+  }
+else
+  {
+  foreach $c (split(//, $_[0]))
+    {
+    if (ord $c >= 32 && ord $c < 127) { $t .= $c; }
+      else { $t .= sprintf("\\x%02x", ord $c); }
+    }
+  }
+
+$t;
+}
+
+
+# Read lines from named file or stdin and write to named file or stdout; lines
+# consist of a regular expression, in delimiters and optionally followed by
+# options, followed by a set of test data, terminated by an empty line.
+
+# Sort out the input and output files
+
+if (@ARGV > 0)
+  {
+  open(INFILE, "<$ARGV[0]") || die "Failed to open $ARGV[0]\n";
+  $infile = "INFILE";
+  }
+else { $infile = "STDIN"; }
+
+if (@ARGV > 1)
+  {
+  open(OUTFILE, ">$ARGV[1]") || die "Failed to open $ARGV[1]\n";
+  $outfile = "OUTFILE";
+  }
+else { $outfile = "STDOUT"; }
+
+printf($outfile "Perl $] Regular Expressions\n\n");
+
+# Main loop
+
+NEXT_RE:
+for (;;)
+  {
+  printf "  re> " if $infile eq "STDIN";
+  last if ! ($_ = <$infile>);
+  printf $outfile "$_" if $infile ne "STDIN";
+  next if ($_ eq "");
+
+  $pattern = $_;
+
+  while ($pattern !~ /^\s*(.).*\1/s)
+    {
+    printf "    > " if $infile eq "STDIN";
+    last if ! ($_ = <$infile>);
+    printf $outfile "$_" if $infile ne "STDIN";
+    $pattern .= $_;
+    }
+
+   chomp($pattern);
+   $pattern =~ s/\s+$//;
+
+  # The private /+ modifier means "print $' afterwards".
+
+  $showrest = ($pattern =~ s/\+(?=[a-zA-Z]*$)//);
+
+  # A doubled version is used by pcretest to print remainders after captures
+
+  $pattern =~ s/\+(?=[a-zA-Z]*$)//;
+
+  # Remove /8 from a UTF-8 pattern.
+
+  $utf8 = $pattern =~ s/8(?=[a-zA-Z]*$)//;
+
+  # Remove /J from a pattern with duplicate names.
+
+  $pattern =~ s/J(?=[a-zA-Z]*$)//;
+
+  # Remove /K from a pattern (asks pcretest to check MARK data) */
+
+  $pattern =~ s/K(?=[a-zA-Z]*$)//;
+
+  # Remove /W from a pattern (asks pcretest to set PCRE_UCP)
+
+  $pattern =~ s/W(?=[a-zA-Z]*$)//;
+
+  # Remove /S or /SS from a pattern (asks pcretest to study or not to study)
+
+  $pattern =~ s/S(?=[a-zA-Z]*$)//g;
+
+  # Remove /Y from a pattern (asks pcretest to disable PCRE optimization)
+
+  $pattern =~ s/Y(?=[a-zA-Z]*$)//;
+
+  # Check that the pattern is valid
+
+  eval "\$_ =~ ${pattern}";
+  if ($@)
+    {
+    printf $outfile "Error: $@";
+    next NEXT_RE;
+    }
+
+  # If the /g modifier is present, we want to put a loop round the matching;
+  # otherwise just a single "if".
+
+  $cmd = ($pattern =~ /g[a-z]*$/)? "while" : "if";
+
+  # If the pattern is actually the null string, Perl uses the most recently
+  # executed (and successfully compiled) regex is used instead. This is a
+  # nasty trap for the unwary! The PCRE test suite does contain null strings
+  # in places - if they are allowed through here all sorts of weird and
+  # unexpected effects happen. To avoid this, we replace such patterns with
+  # a non-null pattern that has the same effect.
+
+  $pattern = "/(?#)/$2" if ($pattern =~ /^(.)\1(.*)$/);
+
+  # Read data lines and test them
+
+  for (;;)
+    {
+    printf "data> " if $infile eq "STDIN";
+    last NEXT_RE if ! ($_ = <$infile>);
+    chomp;
+    printf $outfile "$_\n" if $infile ne "STDIN";
+
+    s/\s+$//;  # Remove trailing space
+    s/^\s+//;  # Remove leading space
+    s/\\Y//g;  # Remove \Y (pcretest flag to set PCRE_NO_START_OPTIMIZE)
+
+    last if ($_ eq "");
+    $x = eval "\"$_\"";   # To get escapes processed
+
+    # Empty array for holding results, ensure $REGERROR and $REGMARK are
+    # unset, then do the matching.
+
+    @subs = ();
+
+    $pushes = "push \@subs,\$&;" .
+         "push \@subs,\$1;" .
+         "push \@subs,\$2;" .
+         "push \@subs,\$3;" .
+         "push \@subs,\$4;" .
+         "push \@subs,\$5;" .
+         "push \@subs,\$6;" .
+         "push \@subs,\$7;" .
+         "push \@subs,\$8;" .
+         "push \@subs,\$9;" .
+         "push \@subs,\$10;" .
+         "push \@subs,\$11;" .
+         "push \@subs,\$12;" .
+         "push \@subs,\$13;" .
+         "push \@subs,\$14;" .
+         "push \@subs,\$15;" .
+         "push \@subs,\$16;" .
+         "push \@subs,\$'; }";
+
+    undef $REGERROR;
+    undef $REGMARK;
+
+    eval "${cmd} (\$x =~ ${pattern}) {" . $pushes;
+
+    if ($@)
+      {
+      printf $outfile "Error: $@\n";
+      next NEXT_RE;
+      }
+    elsif (scalar(@subs) == 0)
+      {
+      printf $outfile "No match";
+      if (defined $REGERROR && $REGERROR != 1)
+        { printf $outfile (", mark = %s", &pchars($REGERROR)); }
+      printf $outfile "\n";
+      }
+    else
+      {
+      while (scalar(@subs) != 0)
+        {
+        printf $outfile (" 0: %s\n", &pchars($subs[0]));
+        printf $outfile (" 0+ %s\n", &pchars($subs[17])) if $showrest;
+        $last_printed = 0;
+        for ($i = 1; $i <= 16; $i++)
+          {
+          if (defined $subs[$i])
+            {
+            while ($last_printed++ < $i-1)
+              { printf $outfile ("%2d: <unset>\n", $last_printed); }
+            printf $outfile ("%2d: %s\n", $i, &pchars($subs[$i]));
+            $last_printed = $i;
+            }
+          }
+        splice(@subs, 0, 18);
+        }
+
+      # It seems that $REGMARK is not marked as UTF-8 even when use utf8 is
+      # set and the input pattern was a UTF-8 string. We can, however, force
+      # it to be so marked.
+
+      if (defined $REGMARK && $REGMARK != 1)
+        {
+        $xx = $REGMARK;
+        $xx = Encode::decode_utf8($xx) if $utf8;
+        printf $outfile ("MK: %s\n", &pchars($xx));
+        }
+      }
+    }
+  }
+
+# printf $outfile "\n";
+
+# End
diff --git a/8.31/qt_attribution.json b/8.31/qt_attribution.json
new file mode 100644
index 0000000..dc005e0
--- /dev/null
+++ b/8.31/qt_attribution.json
@@ -0,0 +1,15 @@
+{
+    "Id": "pcre",
+    "Name": "PCRE",
+    "QDocModule": "qt3dstudio",
+    "QtUsage": "Used by Qt3DStudio Studio and Runtime components.",
+
+    "Description": "The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5.",
+    "Homepage": "http://www.pcre.org/",
+    "License": "BSD 3-clause \"New\" or \"Revised\" License",
+    "LicenseId": "BSD-3-Clause",
+    "LicenseFile": "LICENCE",
+    "Copyright": "Copyright (c) 1997-2012 University of Cambridge.
+Copyright (c) 2010-2012 Zoltan Herczeg.
+Copyright (c) 2007-2012, Google Inc."
+}
diff --git a/8.31/sljit/sljitConfig.h b/8.31/sljit/sljitConfig.h
new file mode 100644
index 0000000..32c3b10
--- /dev/null
+++ b/8.31/sljit/sljitConfig.h
@@ -0,0 +1,109 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SLJIT_CONFIG_H_
+#define _SLJIT_CONFIG_H_
+
+/* --------------------------------------------------------------------- */
+/*  Custom defines                                                       */
+/* --------------------------------------------------------------------- */
+
+/* Put your custom defines here. This empty section will never change
+   which helps maintaining patches (with diff / patch utilities). */
+
+/* --------------------------------------------------------------------- */
+/*  Architecture                                                         */
+/* --------------------------------------------------------------------- */
+
+/* Architecture selection. */
+/* #define SLJIT_CONFIG_X86_32 1 */
+/* #define SLJIT_CONFIG_X86_64 1 */
+/* #define SLJIT_CONFIG_ARM_V5 1 */
+/* #define SLJIT_CONFIG_ARM_V7 1 */
+/* #define SLJIT_CONFIG_ARM_THUMB2 1 */
+/* #define SLJIT_CONFIG_PPC_32 1 */
+/* #define SLJIT_CONFIG_PPC_64 1 */
+/* #define SLJIT_CONFIG_MIPS_32 1 */
+
+/* #define SLJIT_CONFIG_AUTO 1 */
+/* #define SLJIT_CONFIG_UNSUPPORTED 1 */
+
+/* --------------------------------------------------------------------- */
+/*  Utilities                                                            */
+/* --------------------------------------------------------------------- */
+
+/* Useful for thread-safe compiling of global functions. */
+#ifndef SLJIT_UTIL_GLOBAL_LOCK
+/* Enabled by default */
+#define SLJIT_UTIL_GLOBAL_LOCK 1
+#endif
+
+/* Implements a stack like data structure (by using mmap / VirtualAlloc). */
+#ifndef SLJIT_UTIL_STACK
+/* Enabled by default */
+#define SLJIT_UTIL_STACK 1
+#endif
+
+/* Single threaded application. Does not require any locks. */
+#ifndef SLJIT_SINGLE_THREADED
+/* Disabled by default. */
+#define SLJIT_SINGLE_THREADED 0
+#endif
+
+/* --------------------------------------------------------------------- */
+/*  Configuration                                                        */
+/* --------------------------------------------------------------------- */
+
+/* If SLJIT_STD_MACROS_DEFINED is not defined, the application should
+   define SLJIT_MALLOC, SLJIT_FREE, SLJIT_MEMMOVE, and NULL. */
+#ifndef SLJIT_STD_MACROS_DEFINED
+/* Disabled by default. */
+#define SLJIT_STD_MACROS_DEFINED 0
+#endif
+
+/* Executable code allocation:
+   If SLJIT_EXECUTABLE_ALLOCATOR is not defined, the application should
+   define both SLJIT_MALLOC_EXEC and SLJIT_FREE_EXEC. */
+#ifndef SLJIT_EXECUTABLE_ALLOCATOR
+/* Enabled by default. */
+#define SLJIT_EXECUTABLE_ALLOCATOR 1
+#endif
+
+/* Debug checks (assertions, etc.). */
+#ifndef SLJIT_DEBUG
+/* Enabled by default */
+#define SLJIT_DEBUG 1
+#endif
+
+/* Verbose operations */
+#ifndef SLJIT_VERBOSE
+/* Enabled by default */
+#define SLJIT_VERBOSE 1
+#endif
+
+/* See the beginning of sljitConfigInternal.h */
+
+#endif
diff --git a/8.31/sljit/sljitConfigInternal.h b/8.31/sljit/sljitConfigInternal.h
new file mode 100644
index 0000000..ad12bfd
--- /dev/null
+++ b/8.31/sljit/sljitConfigInternal.h
@@ -0,0 +1,432 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SLJIT_CONFIG_INTERNAL_H_
+#define _SLJIT_CONFIG_INTERNAL_H_
+
+/*
+   SLJIT defines the following macros depending on the target architecture:
+
+   Feature detection (boolean) macros:
+   SLJIT_32BIT_ARCHITECTURE : 32 bit architecture
+   SLJIT_64BIT_ARCHITECTURE : 64 bit architecture
+   SLJIT_WORD_SHIFT : the shift required to apply when accessing a sljit_w/sljit_uw array by index
+   SLJIT_FLOAT_SHIFT : the shift required to apply when accessing a double array by index
+   SLJIT_LITTLE_ENDIAN : little endian architecture
+   SLJIT_BIG_ENDIAN : big endian architecture
+   SLJIT_UNALIGNED : allows unaligned memory accesses for non-fpu operations (only!)
+   SLJIT_INDIRECT_CALL : see SLJIT_FUNC_OFFSET() for more information
+
+   Types and useful macros:
+   sljit_b, sljit_ub : signed and unsigned 8 bit byte
+   sljit_h, sljit_uh : signed and unsigned 16 bit half-word (short) type
+   sljit_i, sljit_ui : signed and unsigned 32 bit integer type
+   sljit_w, sljit_uw : signed and unsigned machine word, enough to store a pointer (same as intptr_t)
+   SLJIT_CALL : C calling convention define for both calling JIT form C and C callbacks for JIT
+   SLJIT_W(number) : defining 64 bit constants on 64 bit architectures (compiler independent helper)
+*/
+
+#if !((defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
+	|| (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
+	|| (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
+	|| (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
+	|| (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
+	|| (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
+	|| (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
+	|| (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
+	|| (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
+	|| (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED))
+#error "An architecture must be selected"
+#endif
+
+/* Sanity check. */
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
+	+ (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
+	+ (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
+	+ (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
+	+ (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
+	+ (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
+	+ (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
+	+ (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
+	+ (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
+	+ (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) >= 2
+#error "Multiple architectures are selected"
+#endif
+
+/* Auto select option (requires compiler support) */
+#if (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO)
+
+#ifndef _WIN32
+
+#if defined(__i386__) || defined(__i386)
+#define SLJIT_CONFIG_X86_32 1
+#elif defined(__x86_64__)
+#define SLJIT_CONFIG_X86_64 1
+#elif defined(__arm__) || defined(__ARM__)
+#ifdef __thumb2__
+#define SLJIT_CONFIG_ARM_THUMB2 1
+#elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__)
+#define SLJIT_CONFIG_ARM_V7 1
+#else
+#define SLJIT_CONFIG_ARM_V5 1
+#endif
+#elif defined(__ppc64__) || defined(__powerpc64__)
+#define SLJIT_CONFIG_PPC_64 1
+#elif defined(__ppc__) || defined(__powerpc__)
+#define SLJIT_CONFIG_PPC_32 1
+#elif defined(__mips__)
+#define SLJIT_CONFIG_MIPS_32 1
+#else
+/* Unsupported architecture */
+#define SLJIT_CONFIG_UNSUPPORTED 1
+#endif
+
+#else /* !_WIN32 */
+
+#if defined(_M_X64) || defined(__x86_64__)
+#define SLJIT_CONFIG_X86_64 1
+#elif defined(_ARM_)
+#define SLJIT_CONFIG_ARM_V5 1
+#else
+#define SLJIT_CONFIG_X86_32 1
+#endif
+
+#endif /* !WIN32 */
+#endif /* SLJIT_CONFIG_AUTO */
+
+#if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
+#undef SLJIT_EXECUTABLE_ALLOCATOR
+#endif
+
+#if !(defined SLJIT_STD_MACROS_DEFINED && SLJIT_STD_MACROS_DEFINED)
+
+/* These libraries are needed for the macros below. */
+#include <stdlib.h>
+#include <string.h>
+
+#endif /* STD_MACROS_DEFINED */
+
+/* General macros:
+   Note: SLJIT is designed to be independent from them as possible.
+
+   In release mode (SLJIT_DEBUG is not defined) only the following macros are needed:
+*/
+
+#ifndef SLJIT_MALLOC
+#define SLJIT_MALLOC(size) malloc(size)
+#endif
+
+#ifndef SLJIT_FREE
+#define SLJIT_FREE(ptr) free(ptr)
+#endif
+
+#ifndef SLJIT_MEMMOVE
+#define SLJIT_MEMMOVE(dest, src, len) memmove(dest, src, len)
+#endif
+
+#ifndef SLJIT_ZEROMEM
+#define SLJIT_ZEROMEM(dest, len) memset(dest, 0, len)
+#endif
+
+#if !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY)
+
+#if defined(__GNUC__) && (__GNUC__ >= 3)
+#define SLJIT_LIKELY(x)		__builtin_expect((x), 1)
+#define SLJIT_UNLIKELY(x)	__builtin_expect((x), 0)
+#else
+#define SLJIT_LIKELY(x)		(x)
+#define SLJIT_UNLIKELY(x)	(x)
+#endif
+
+#endif /* !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) */
+
+#ifndef SLJIT_INLINE
+/* Inline functions. */
+#define SLJIT_INLINE __inline
+#endif
+
+#ifndef SLJIT_CONST
+/* Const variables. */
+#define SLJIT_CONST const
+#endif
+
+#ifndef SLJIT_UNUSED_ARG
+/* Unused arguments. */
+#define SLJIT_UNUSED_ARG(arg) (void)arg
+#endif
+
+#if (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC)
+/* Static ABI functions. For all-in-one programs. */
+
+#if defined(__GNUC__)
+/* Disable unused warnings in gcc. */
+#define SLJIT_API_FUNC_ATTRIBUTE static __attribute__((unused))
+#else
+#define SLJIT_API_FUNC_ATTRIBUTE static
+#endif
+
+#else
+#define SLJIT_API_FUNC_ATTRIBUTE
+#endif /* (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) */
+
+#ifndef SLJIT_CACHE_FLUSH
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+
+/* Not required to implement on archs with unified caches. */
+#define SLJIT_CACHE_FLUSH(from, to)
+
+#elif defined __APPLE__
+
+/* Supported by all macs since Mac OS 10.5.
+   However, it does not work on non-jailbroken iOS devices,
+   although the compilation is successful. */
+
+#define SLJIT_CACHE_FLUSH(from, to) \
+	sys_icache_invalidate((char*)(from), (char*)(to) - (char*)(from))
+
+#elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+
+/* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
+#define SLJIT_CACHE_FLUSH(from, to) \
+	ppc_cache_flush((from), (to))
+
+#else
+
+/* Calls __ARM_NR_cacheflush on ARM-Linux. */
+#define SLJIT_CACHE_FLUSH(from, to) \
+	__clear_cache((char*)(from), (char*)(to))
+
+#endif
+
+#endif /* !SLJIT_CACHE_FLUSH */
+
+/* 8 bit byte type. */
+typedef unsigned char sljit_ub;
+typedef signed char sljit_b;
+
+/* 16 bit half-word type. */
+typedef unsigned short int sljit_uh;
+typedef signed short int sljit_h;
+
+/* 32 bit integer type. */
+typedef unsigned int sljit_ui;
+typedef signed int sljit_i;
+
+/* Machine word type. Can encapsulate a pointer.
+     32 bit for 32 bit machines.
+     64 bit for 64 bit machines. */
+#if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
+/* Just to have something. */
+#define SLJIT_WORD_SHIFT 0
+typedef unsigned long int sljit_uw;
+typedef long int sljit_w;
+#elif !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && !(defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#define SLJIT_32BIT_ARCHITECTURE 1
+#define SLJIT_WORD_SHIFT 2
+typedef unsigned int sljit_uw;
+typedef int sljit_w;
+#else
+#define SLJIT_64BIT_ARCHITECTURE 1
+#define SLJIT_WORD_SHIFT 3
+#ifdef _WIN32
+typedef unsigned __int64 sljit_uw;
+typedef __int64 sljit_w;
+#else
+typedef unsigned long int sljit_uw;
+typedef long int sljit_w;
+#endif
+#endif
+
+/* Double precision. */
+#define SLJIT_FLOAT_SHIFT 3
+
+#ifndef SLJIT_W
+
+/* Defining long constants. */
+#if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
+#define SLJIT_W(w)	(w##ll)
+#else
+#define SLJIT_W(w)	(w)
+#endif
+
+#endif /* !SLJIT_W */
+
+#ifndef SLJIT_CALL
+
+/* ABI (Application Binary Interface) types. */
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+
+#if defined(__GNUC__)
+
+#define SLJIT_CALL __attribute__ ((fastcall))
+#define SLJIT_X86_32_FASTCALL 1
+
+#elif defined(_WIN32)
+
+#ifdef __BORLANDC__
+#define SLJIT_CALL __msfastcall
+#else /* __BORLANDC__ */
+#define SLJIT_CALL __fastcall
+#endif /* __BORLANDC__ */
+#define SLJIT_X86_32_FASTCALL 1
+
+#else /* defined(_WIN32) */
+#define SLJIT_CALL __stdcall
+#endif
+
+#else /* Other architectures. */
+
+#define SLJIT_CALL
+
+#endif /* SLJIT_CONFIG_X86_32 */
+
+#endif /* !SLJIT_CALL */
+
+#if !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN)
+
+/* These macros are useful for the application. */
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#define SLJIT_BIG_ENDIAN 1
+
+#elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+
+#ifdef __MIPSEL__
+#define SLJIT_LITTLE_ENDIAN 1
+#else
+#define SLJIT_BIG_ENDIAN 1
+#endif
+
+#else
+#define SLJIT_LITTLE_ENDIAN 1
+#endif
+
+#endif /* !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) */
+
+/* Sanity check. */
+#if (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
+#error "Exactly one endianness must be selected"
+#endif
+
+#if !(defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && !(defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
+#error "Exactly one endianness must be selected"
+#endif
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+/* It seems ppc64 compilers use an indirect addressing for functions.
+   It makes things really complicated. */
+#define SLJIT_INDIRECT_CALL 1
+#endif
+
+#ifndef SLJIT_SSE2
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+/* Turn on SSE2 support on x86. */
+#define SLJIT_SSE2 1
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+/* Auto detect SSE2 support using CPUID.
+   On 64 bit x86 cpus, sse2 must be present. */
+#define SLJIT_DETECT_SSE2 1
+#endif
+
+#endif /* (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) */
+
+#endif /* !SLJIT_SSE2 */
+
+#ifndef SLJIT_UNALIGNED
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
+	|| (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
+	|| (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
+	|| (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
+	|| (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
+	|| (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#define SLJIT_UNALIGNED 1
+#endif
+
+#endif /* !SLJIT_UNALIGNED */
+
+#if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size);
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr);
+#define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size)
+#define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr)
+#endif
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG) || (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+#include <stdio.h>
+#endif
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+
+/* Feel free to redefine these two macros. */
+#ifndef SLJIT_ASSERT
+
+#define SLJIT_HALT_PROCESS() \
+	*((int*)0) = 0
+
+#define SLJIT_ASSERT(x) \
+	do { \
+		if (SLJIT_UNLIKELY(!(x))) { \
+			printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \
+			SLJIT_HALT_PROCESS(); \
+		} \
+	} while (0)
+
+#endif /* !SLJIT_ASSERT */
+
+#ifndef SLJIT_ASSERT_STOP
+
+#define SLJIT_ASSERT_STOP() \
+	do { \
+		printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \
+		SLJIT_HALT_PROCESS(); \
+	} while (0)
+
+#endif /* !SLJIT_ASSERT_STOP */
+
+#else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
+
+#undef SLJIT_ASSERT
+#undef SLJIT_ASSERT_STOP
+
+#define SLJIT_ASSERT(x) \
+	do { } while (0)
+#define SLJIT_ASSERT_STOP() \
+	do { } while (0)
+
+#endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
+
+#ifndef SLJIT_COMPILE_ASSERT
+
+/* Should be improved eventually. */
+#define SLJIT_COMPILE_ASSERT(x, description) \
+	SLJIT_ASSERT(x)
+
+#endif /* !SLJIT_COMPILE_ASSERT */
+
+#endif
diff --git a/8.31/sljit/sljitExecAllocator.c b/8.31/sljit/sljitExecAllocator.c
new file mode 100644
index 0000000..f66744d
--- /dev/null
+++ b/8.31/sljit/sljitExecAllocator.c
@@ -0,0 +1,277 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+   This file contains a simple executable memory allocator
+
+   It is assumed, that executable code blocks are usually medium (or sometimes
+   large) memory blocks, and the allocator is not too frequently called (less
+   optimized than other allocators). Thus, using it as a generic allocator is
+   not suggested.
+
+   How does it work:
+     Memory is allocated in continuous memory areas called chunks by alloc_chunk()
+     Chunk format:
+     [ block ][ block ] ... [ block ][ block terminator ]
+
+   All blocks and the block terminator is started with block_header. The block
+   header contains the size of the previous and the next block. These sizes
+   can also contain special values.
+     Block size:
+       0 - The block is a free_block, with a different size member.
+       1 - The block is a block terminator.
+       n - The block is used at the moment, and the value contains its size.
+     Previous block size:
+       0 - This is the first block of the memory chunk.
+       n - The size of the previous block.
+
+   Using these size values we can go forward or backward on the block chain.
+   The unused blocks are stored in a chain list pointed by free_blocks. This
+   list is useful if we need to find a suitable memory area when the allocator
+   is called.
+ 
+   When a block is freed, the new free block is connected to its adjacent free
+   blocks if possible.
+
+     [ free block ][ used block ][ free block ]
+   and "used block" is freed, the three blocks are connected together:
+     [           one big free block           ]
+*/
+
+/* --------------------------------------------------------------------- */
+/*  System (OS) functions                                                */
+/* --------------------------------------------------------------------- */
+
+/* 64 KByte. */
+#define CHUNK_SIZE	0x10000
+
+/*
+   alloc_chunk / free_chunk :
+     * allocate executable system memory chunks
+     * the size is always divisible by CHUNK_SIZE
+   allocator_grab_lock / allocator_release_lock :
+     * make the allocator thread safe
+     * can be empty if the OS (or the application) does not support threading
+     * only the allocator requires this lock, sljit is fully thread safe
+       as it only uses local variables
+*/
+
+#ifdef _WIN32
+
+static SLJIT_INLINE void* alloc_chunk(sljit_uw size)
+{
+	return VirtualAlloc(0, size, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
+}
+
+static SLJIT_INLINE void free_chunk(void* chunk, sljit_uw size)
+{
+	SLJIT_UNUSED_ARG(size);
+	VirtualFree(chunk, 0, MEM_RELEASE);
+}
+
+#else
+
+#include <sys/mman.h>
+
+static SLJIT_INLINE void* alloc_chunk(sljit_uw size)
+{
+	void* retval = mmap(0, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANON, -1, 0);
+	return (retval != MAP_FAILED) ? retval : NULL;
+}
+
+static SLJIT_INLINE void free_chunk(void* chunk, sljit_uw size)
+{
+	munmap(chunk, size);
+}
+
+#endif
+
+/* --------------------------------------------------------------------- */
+/*  Common functions                                                     */
+/* --------------------------------------------------------------------- */
+
+#define CHUNK_MASK	(~(CHUNK_SIZE - 1))
+
+struct block_header {
+	sljit_uw size;
+	sljit_uw prev_size;
+};
+
+struct free_block {
+	struct block_header header;
+	struct free_block *next;
+	struct free_block *prev;
+	sljit_uw size;
+};
+
+#define AS_BLOCK_HEADER(base, offset) \
+	((struct block_header*)(((sljit_ub*)base) + offset))
+#define AS_FREE_BLOCK(base, offset) \
+	((struct free_block*)(((sljit_ub*)base) + offset))
+#define MEM_START(base)		((void*)(((sljit_ub*)base) + sizeof(struct block_header)))
+#define ALIGN_SIZE(size)	(((size) + sizeof(struct block_header) + 7) & ~7)
+
+static struct free_block* free_blocks;
+static sljit_uw allocated_size;
+static sljit_uw total_size;
+
+static SLJIT_INLINE void sljit_insert_free_block(struct free_block *free_block, sljit_uw size)
+{
+	free_block->header.size = 0;
+	free_block->size = size;
+
+	free_block->next = free_blocks;
+	free_block->prev = 0;
+	if (free_blocks)
+		free_blocks->prev = free_block;
+	free_blocks = free_block;
+}
+
+static SLJIT_INLINE void sljit_remove_free_block(struct free_block *free_block)
+{
+	if (free_block->next)
+		free_block->next->prev = free_block->prev;
+
+	if (free_block->prev)
+		free_block->prev->next = free_block->next;
+	else {
+		SLJIT_ASSERT(free_blocks == free_block);
+		free_blocks = free_block->next;
+	}
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size)
+{
+	struct block_header *header;
+	struct block_header *next_header;
+	struct free_block *free_block;
+	sljit_uw chunk_size;
+
+	allocator_grab_lock();
+	if (size < sizeof(struct free_block))
+		size = sizeof(struct free_block);
+	size = ALIGN_SIZE(size);
+
+	free_block = free_blocks;
+	while (free_block) {
+		if (free_block->size >= size) {
+			chunk_size = free_block->size;
+			if (chunk_size > size + 64) {
+				/* We just cut a block from the end of the free block. */
+				chunk_size -= size;
+				free_block->size = chunk_size;
+				header = AS_BLOCK_HEADER(free_block, chunk_size);
+				header->prev_size = chunk_size;
+				AS_BLOCK_HEADER(header, size)->prev_size = size;
+			}
+			else {
+				sljit_remove_free_block(free_block);
+				header = (struct block_header*)free_block;
+				size = chunk_size;
+			}
+			allocated_size += size;
+			header->size = size;
+			allocator_release_lock();
+			return MEM_START(header);
+		}
+		free_block = free_block->next;
+	}
+
+	chunk_size = (size + sizeof(struct block_header) + CHUNK_SIZE - 1) & CHUNK_MASK;
+	header = (struct block_header*)alloc_chunk(chunk_size);
+	PTR_FAIL_IF(!header);
+
+	chunk_size -= sizeof(struct block_header);
+	total_size += chunk_size;
+
+	header->prev_size = 0;
+	if (chunk_size > size + 64) {
+		/* Cut the allocated space into a free and a used block. */
+		allocated_size += size;
+		header->size = size;
+		chunk_size -= size;
+
+		free_block = AS_FREE_BLOCK(header, size);
+		free_block->header.prev_size = size;
+		sljit_insert_free_block(free_block, chunk_size);
+		next_header = AS_BLOCK_HEADER(free_block, chunk_size);
+	}
+	else {
+		/* All space belongs to this allocation. */
+		allocated_size += chunk_size;
+		header->size = chunk_size;
+		next_header = AS_BLOCK_HEADER(header, chunk_size);
+	}
+	next_header->size = 1;
+	next_header->prev_size = chunk_size;
+	allocator_release_lock();
+	return MEM_START(header);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr)
+{
+	struct block_header *header;
+	struct free_block* free_block;
+
+	allocator_grab_lock();
+	header = AS_BLOCK_HEADER(ptr, -(sljit_w)sizeof(struct block_header));
+	allocated_size -= header->size;
+
+	/* Connecting free blocks together if possible. */
+
+	/* If header->prev_size == 0, free_block will equal to header.
+	   In this case, free_block->header.size will be > 0. */
+	free_block = AS_FREE_BLOCK(header, -(sljit_w)header->prev_size);
+	if (SLJIT_UNLIKELY(!free_block->header.size)) {
+		free_block->size += header->size;
+		header = AS_BLOCK_HEADER(free_block, free_block->size);
+		header->prev_size = free_block->size;
+	}
+	else {
+		free_block = (struct free_block*)header;
+		sljit_insert_free_block(free_block, header->size);
+	}
+
+	header = AS_BLOCK_HEADER(free_block, free_block->size);
+	if (SLJIT_UNLIKELY(!header->size)) {
+		free_block->size += ((struct free_block*)header)->size;
+		sljit_remove_free_block((struct free_block*)header);
+		header = AS_BLOCK_HEADER(free_block, free_block->size);
+		header->prev_size = free_block->size;
+	}
+
+	/* The whole chunk is free. */
+	if (SLJIT_UNLIKELY(!free_block->header.prev_size && header->size == 1)) {
+		/* If this block is freed, we still have (allocated_size / 2) free space. */
+		if (total_size - free_block->size > (allocated_size * 3 / 2)) {
+			total_size -= free_block->size;
+			sljit_remove_free_block(free_block);
+			free_chunk(free_block, free_block->size + sizeof(struct block_header));
+		}
+	}
+
+	allocator_release_lock();
+}
diff --git a/8.31/sljit/sljitLir.c b/8.31/sljit/sljitLir.c
new file mode 100644
index 0000000..8f364c3
--- /dev/null
+++ b/8.31/sljit/sljitLir.c
@@ -0,0 +1,1678 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "sljitLir.h"
+
+#define CHECK_ERROR() \
+	do { \
+		if (SLJIT_UNLIKELY(compiler->error)) \
+			return compiler->error; \
+	} while (0)
+
+#define CHECK_ERROR_PTR() \
+	do { \
+		if (SLJIT_UNLIKELY(compiler->error)) \
+			return NULL; \
+	} while (0)
+
+#define CHECK_ERROR_VOID() \
+	do { \
+		if (SLJIT_UNLIKELY(compiler->error)) \
+			return; \
+	} while (0)
+
+#define FAIL_IF(expr) \
+	do { \
+		if (SLJIT_UNLIKELY(expr)) \
+			return compiler->error; \
+	} while (0)
+
+#define PTR_FAIL_IF(expr) \
+	do { \
+		if (SLJIT_UNLIKELY(expr)) \
+			return NULL; \
+	} while (0)
+
+#define FAIL_IF_NULL(ptr) \
+	do { \
+		if (SLJIT_UNLIKELY(!(ptr))) { \
+			compiler->error = SLJIT_ERR_ALLOC_FAILED; \
+			return SLJIT_ERR_ALLOC_FAILED; \
+		} \
+	} while (0)
+
+#define PTR_FAIL_IF_NULL(ptr) \
+	do { \
+		if (SLJIT_UNLIKELY(!(ptr))) { \
+			compiler->error = SLJIT_ERR_ALLOC_FAILED; \
+			return NULL; \
+		} \
+	} while (0)
+
+#define PTR_FAIL_WITH_EXEC_IF(ptr) \
+	do { \
+		if (SLJIT_UNLIKELY(!(ptr))) { \
+			compiler->error = SLJIT_ERR_EX_ALLOC_FAILED; \
+			return NULL; \
+		} \
+	} while (0)
+
+#if !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
+
+#define GET_OPCODE(op) \
+	((op) & ~(SLJIT_INT_OP | SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))
+
+#define GET_FLAGS(op) \
+	((op) & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O | SLJIT_SET_C))
+
+#define GET_ALL_FLAGS(op) \
+	((op) & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))
+
+#define BUF_SIZE	4096
+
+#if (defined SLJIT_32BIT_ARCHITECTURE && SLJIT_32BIT_ARCHITECTURE)
+#define ABUF_SIZE	2048
+#else
+#define ABUF_SIZE	4096
+#endif
+
+/* Jump flags. */
+#define JUMP_LABEL	0x1
+#define JUMP_ADDR	0x2
+/* SLJIT_REWRITABLE_JUMP is 0x1000. */
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	#define PATCH_MB	0x4
+	#define PATCH_MW	0x8
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	#define PATCH_MD	0x10
+#endif
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+	#define IS_BL		0x4
+	#define PATCH_B		0x8
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	#define CPOOL_SIZE	512
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
+	#define IS_CONDITIONAL	0x04
+	#define IS_BL		0x08
+	/* cannot be encoded as branch */
+	#define B_TYPE0		0x00
+	/* conditional + imm8 */
+	#define B_TYPE1		0x10
+	/* conditional + imm20 */
+	#define B_TYPE2		0x20
+	/* IT + imm24 */
+	#define B_TYPE3		0x30
+	/* imm11 */
+	#define B_TYPE4		0x40
+	/* imm24 */
+	#define B_TYPE5		0x50
+	/* BL + imm24 */
+	#define BL_TYPE6	0x60
+	/* 0xf00 cc code for branches */
+#endif
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	#define UNCOND_B	0x04
+	#define PATCH_B		0x08
+	#define ABSOLUTE_B	0x10
+#endif
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+	#define IS_MOVABLE	0x04
+	#define IS_JAL		0x08
+	#define IS_BIT26_COND	0x10
+	#define IS_BIT16_COND	0x20
+
+	#define IS_COND		(IS_BIT26_COND | IS_BIT16_COND)
+
+	#define PATCH_B		0x40
+	#define PATCH_J		0x80
+
+	/* instruction types */
+	#define UNMOVABLE_INS	0
+	/* 1 - 31 last destination register */
+	#define FCSR_FCC	32
+	/* no destination (i.e: store) */
+	#define MOVABLE_INS	33
+#endif
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+#define SLJIT_HAS_VARIABLE_LOCALS_OFFSET 1
+#endif
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+#define SLJIT_HAS_FIXED_LOCALS_OFFSET 1
+#ifdef _WIN64
+#define FIXED_LOCALS_OFFSET (4 * sizeof(sljit_w))
+#else
+#define FIXED_LOCALS_OFFSET (sizeof(sljit_w))
+#endif
+#endif
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+#define SLJIT_HAS_FIXED_LOCALS_OFFSET 1
+#define FIXED_LOCALS_OFFSET (4 * sizeof(sljit_w))
+#endif
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+#define SLJIT_HAS_FIXED_LOCALS_OFFSET 1
+#define FIXED_LOCALS_OFFSET (2 * sizeof(sljit_w))
+#endif
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#define SLJIT_HAS_FIXED_LOCALS_OFFSET 1
+#define FIXED_LOCALS_OFFSET ((7 + 8) * sizeof(sljit_w))
+#endif
+
+#if (defined SLJIT_HAS_VARIABLE_LOCALS_OFFSET && SLJIT_HAS_VARIABLE_LOCALS_OFFSET)
+
+#define ADJUST_LOCAL_OFFSET(p, i) \
+	if ((p) == (SLJIT_MEM1(SLJIT_LOCALS_REG))) \
+		(i) += compiler->locals_offset;
+
+#elif (defined SLJIT_HAS_FIXED_LOCALS_OFFSET && SLJIT_HAS_FIXED_LOCALS_OFFSET)
+
+#define ADJUST_LOCAL_OFFSET(p, i) \
+	if ((p) == (SLJIT_MEM1(SLJIT_LOCALS_REG))) \
+		(i) += FIXED_LOCALS_OFFSET;
+
+#else
+
+#define ADJUST_LOCAL_OFFSET(p, i)
+
+#endif
+
+#endif /* !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) */
+
+/* Utils can still be used even if SLJIT_CONFIG_UNSUPPORTED is set. */
+#include "sljitUtils.c"
+
+#if !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
+
+#if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
+#include "sljitExecAllocator.c"
+#endif
+
+#if (defined SLJIT_SSE2_AUTO && SLJIT_SSE2_AUTO) && !(defined SLJIT_SSE2 && SLJIT_SSE2)
+#error SLJIT_SSE2_AUTO cannot be enabled without SLJIT_SSE2
+#endif
+
+/* --------------------------------------------------------------------- */
+/*  Public functions                                                     */
+/* --------------------------------------------------------------------- */
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || ((defined SLJIT_SSE2 && SLJIT_SSE2) && ((defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)))
+#define SLJIT_NEEDS_COMPILER_INIT 1
+static int compiler_initialized = 0;
+/* A thread safe initialization. */
+static void init_compiler(void);
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_compiler* sljit_create_compiler(void)
+{
+	struct sljit_compiler *compiler = (struct sljit_compiler*)SLJIT_MALLOC(sizeof(struct sljit_compiler));
+	if (!compiler)
+		return NULL;
+	SLJIT_ZEROMEM(compiler, sizeof(struct sljit_compiler));
+
+	SLJIT_COMPILE_ASSERT(
+		sizeof(sljit_b) == 1 && sizeof(sljit_ub) == 1
+		&& sizeof(sljit_h) == 2 && sizeof(sljit_uh) == 2
+		&& sizeof(sljit_i) == 4 && sizeof(sljit_ui) == 4
+		&& ((sizeof(sljit_w) == 4 && sizeof(sljit_uw) == 4) || (sizeof(sljit_w) == 8 && sizeof(sljit_uw) == 8)),
+		invalid_integer_types);
+
+	/* Only the non-zero members must be set. */
+	compiler->error = SLJIT_SUCCESS;
+
+	compiler->buf = (struct sljit_memory_fragment*)SLJIT_MALLOC(BUF_SIZE);
+	compiler->abuf = (struct sljit_memory_fragment*)SLJIT_MALLOC(ABUF_SIZE);
+
+	if (!compiler->buf || !compiler->abuf) {
+		if (compiler->buf)
+			SLJIT_FREE(compiler->buf);
+		if (compiler->abuf)
+			SLJIT_FREE(compiler->abuf);
+		SLJIT_FREE(compiler);
+		return NULL;
+	}
+
+	compiler->buf->next = NULL;
+	compiler->buf->used_size = 0;
+	compiler->abuf->next = NULL;
+	compiler->abuf->used_size = 0;
+
+	compiler->temporaries = -1;
+	compiler->saveds = -1;
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	compiler->args = -1;
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	compiler->cpool = (sljit_uw*)SLJIT_MALLOC(CPOOL_SIZE * sizeof(sljit_uw) + CPOOL_SIZE * sizeof(sljit_ub));
+	if (!compiler->cpool) {
+		SLJIT_FREE(compiler->buf);
+		SLJIT_FREE(compiler->abuf);
+		SLJIT_FREE(compiler);
+		return NULL;
+	}
+	compiler->cpool_unique = (sljit_ub*)(compiler->cpool + CPOOL_SIZE);
+	compiler->cpool_diff = 0xffffffff;
+#endif
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+	compiler->delay_slot = UNMOVABLE_INS;
+#endif
+
+#if (defined SLJIT_NEEDS_COMPILER_INIT && SLJIT_NEEDS_COMPILER_INIT)
+	if (!compiler_initialized) {
+		init_compiler();
+		compiler_initialized = 1;
+	}
+#endif
+
+	return compiler;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_compiler(struct sljit_compiler *compiler)
+{
+	struct sljit_memory_fragment *buf;
+	struct sljit_memory_fragment *curr;
+
+	buf = compiler->buf;
+	while (buf) {
+		curr = buf;
+		buf = buf->next;
+		SLJIT_FREE(curr);
+	}
+
+	buf = compiler->abuf;
+	while (buf) {
+		curr = buf;
+		buf = buf->next;
+		SLJIT_FREE(curr);
+	}
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	SLJIT_FREE(compiler->cpool);
+#endif
+	SLJIT_FREE(compiler);
+}
+
+#if (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code)
+{
+	/* Remove thumb mode flag. */
+	SLJIT_FREE_EXEC((void*)((sljit_uw)code & ~0x1));
+}
+#elif (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code)
+{
+	/* Resolve indirection. */
+	code = (void*)(*(sljit_uw*)code);
+	SLJIT_FREE_EXEC(code);
+}
+#else
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code)
+{
+	SLJIT_FREE_EXEC(code);
+}
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_label(struct sljit_jump *jump, struct sljit_label* label)
+{
+	if (SLJIT_LIKELY(!!jump) && SLJIT_LIKELY(!!label)) {
+		jump->flags &= ~JUMP_ADDR;
+		jump->flags |= JUMP_LABEL;
+		jump->u.label = label;
+	}
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_target(struct sljit_jump *jump, sljit_uw target)
+{
+	if (SLJIT_LIKELY(!!jump)) {
+		SLJIT_ASSERT(jump->flags & SLJIT_REWRITABLE_JUMP);
+
+		jump->flags &= ~JUMP_LABEL;
+		jump->flags |= JUMP_ADDR;
+		jump->u.target = target;
+	}
+}
+
+/* --------------------------------------------------------------------- */
+/*  Private functions                                                    */
+/* --------------------------------------------------------------------- */
+
+static void* ensure_buf(struct sljit_compiler *compiler, int size)
+{
+	sljit_ub *ret;
+	struct sljit_memory_fragment *new_frag;
+
+	if (compiler->buf->used_size + size <= (int)(BUF_SIZE - sizeof(sljit_uw) - sizeof(void*))) {
+		ret = compiler->buf->memory + compiler->buf->used_size;
+		compiler->buf->used_size += size;
+		return ret;
+	}
+	new_frag = (struct sljit_memory_fragment*)SLJIT_MALLOC(BUF_SIZE);
+	PTR_FAIL_IF_NULL(new_frag);
+	new_frag->next = compiler->buf;
+	compiler->buf = new_frag;
+	new_frag->used_size = size;
+	return new_frag->memory;
+}
+
+static void* ensure_abuf(struct sljit_compiler *compiler, int size)
+{
+	sljit_ub *ret;
+	struct sljit_memory_fragment *new_frag;
+
+	if (compiler->abuf->used_size + size <= (int)(ABUF_SIZE - sizeof(sljit_uw) - sizeof(void*))) {
+		ret = compiler->abuf->memory + compiler->abuf->used_size;
+		compiler->abuf->used_size += size;
+		return ret;
+	}
+	new_frag = (struct sljit_memory_fragment*)SLJIT_MALLOC(ABUF_SIZE);
+	PTR_FAIL_IF_NULL(new_frag);
+	new_frag->next = compiler->abuf;
+	compiler->abuf = new_frag;
+	new_frag->used_size = size;
+	return new_frag->memory;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_alloc_memory(struct sljit_compiler *compiler, int size)
+{
+	CHECK_ERROR_PTR();
+
+#if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
+	if (size <= 0 || size > 128)
+		return NULL;
+	size = (size + 7) & ~7;
+#else
+	if (size <= 0 || size > 64)
+		return NULL;
+	size = (size + 3) & ~3;
+#endif
+	return ensure_abuf(compiler, size);
+}
+
+static SLJIT_INLINE void reverse_buf(struct sljit_compiler *compiler)
+{
+	struct sljit_memory_fragment *buf = compiler->buf;
+	struct sljit_memory_fragment *prev = NULL;
+	struct sljit_memory_fragment *tmp;
+
+	do {
+		tmp = buf->next;
+		buf->next = prev;
+		prev = buf;
+		buf = tmp;
+	} while (buf != NULL);
+
+	compiler->buf = prev;
+}
+
+static SLJIT_INLINE void set_label(struct sljit_label *label, struct sljit_compiler *compiler)
+{
+	label->next = NULL;
+	label->size = compiler->size;
+	if (compiler->last_label)
+		compiler->last_label->next = label;
+	else
+		compiler->labels = label;
+	compiler->last_label = label;
+}
+
+static SLJIT_INLINE void set_jump(struct sljit_jump *jump, struct sljit_compiler *compiler, int flags)
+{
+	jump->next = NULL;
+	jump->flags = flags;
+	if (compiler->last_jump)
+		compiler->last_jump->next = jump;
+	else
+		compiler->jumps = jump;
+	compiler->last_jump = jump;
+}
+
+static SLJIT_INLINE void set_const(struct sljit_const *const_, struct sljit_compiler *compiler)
+{
+	const_->next = NULL;
+	const_->addr = compiler->size;
+	if (compiler->last_const)
+		compiler->last_const->next = const_;
+	else
+		compiler->consts = const_;
+	compiler->last_const = const_;
+}
+
+#define ADDRESSING_DEPENDS_ON(exp, reg) \
+	(((exp) & SLJIT_MEM) && (((exp) & 0xf) == reg || (((exp) >> 4) & 0xf) == reg))
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+#define FUNCTION_CHECK_OP() \
+	SLJIT_ASSERT(!GET_FLAGS(op) || !(op & SLJIT_KEEP_FLAGS)); \
+	switch (GET_OPCODE(op)) { \
+	case SLJIT_NOT: \
+	case SLJIT_CLZ: \
+	case SLJIT_AND: \
+	case SLJIT_OR: \
+	case SLJIT_XOR: \
+	case SLJIT_SHL: \
+	case SLJIT_LSHR: \
+	case SLJIT_ASHR: \
+		SLJIT_ASSERT(!(op & (SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O | SLJIT_SET_C))); \
+		break; \
+	case SLJIT_NEG: \
+		SLJIT_ASSERT(!(op & (SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_C))); \
+		break; \
+	case SLJIT_MUL: \
+		SLJIT_ASSERT(!(op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_C))); \
+		break; \
+	case SLJIT_FCMP: \
+		SLJIT_ASSERT(!(op & (SLJIT_INT_OP | SLJIT_SET_U | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))); \
+		SLJIT_ASSERT((op & (SLJIT_SET_E | SLJIT_SET_S))); \
+		break; \
+	case SLJIT_ADD: \
+		SLJIT_ASSERT(!(op & (SLJIT_SET_S | SLJIT_SET_U))); \
+		break; \
+	case SLJIT_SUB: \
+		break; \
+	case SLJIT_ADDC: \
+	case SLJIT_SUBC: \
+		SLJIT_ASSERT(!(op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O))); \
+		break; \
+	default: \
+		/* Nothing allowed */ \
+		SLJIT_ASSERT(!(op & (SLJIT_INT_OP | SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O | SLJIT_SET_C | SLJIT_KEEP_FLAGS))); \
+		break; \
+	}
+
+#define FUNCTION_CHECK_IS_REG(r) \
+	((r) == SLJIT_UNUSED || \
+	((r) >= SLJIT_TEMPORARY_REG1 && (r) <= SLJIT_TEMPORARY_REG1 - 1 + compiler->temporaries) || \
+	((r) >= SLJIT_SAVED_REG1 && (r) <= SLJIT_SAVED_REG1 - 1 + compiler->saveds))
+
+#define FUNCTION_CHECK_SRC(p, i) \
+	SLJIT_ASSERT(compiler->temporaries != -1 && compiler->saveds != -1); \
+	if (FUNCTION_CHECK_IS_REG(p)) \
+		SLJIT_ASSERT((i) == 0 && (p) != SLJIT_UNUSED); \
+	else if ((p) == SLJIT_IMM) \
+		; \
+	else if ((p) == (SLJIT_MEM1(SLJIT_LOCALS_REG))) \
+		SLJIT_ASSERT((i) >= 0 && (i) < compiler->logical_local_size); \
+	else if ((p) & SLJIT_MEM) { \
+		SLJIT_ASSERT(FUNCTION_CHECK_IS_REG((p) & 0xf)); \
+		if ((p) & 0xf0) { \
+			SLJIT_ASSERT(FUNCTION_CHECK_IS_REG(((p) >> 4) & 0xf)); \
+			SLJIT_ASSERT(!((i) & ~0x3)); \
+		} \
+		SLJIT_ASSERT(((p) >> 9) == 0); \
+	} \
+	else \
+		SLJIT_ASSERT_STOP();
+
+#define FUNCTION_CHECK_DST(p, i) \
+	SLJIT_ASSERT(compiler->temporaries != -1 && compiler->saveds != -1); \
+	if (FUNCTION_CHECK_IS_REG(p)) \
+		SLJIT_ASSERT((i) == 0); \
+	else if ((p) == (SLJIT_MEM1(SLJIT_LOCALS_REG))) \
+		SLJIT_ASSERT((i) >= 0 && (i) < compiler->logical_local_size); \
+	else if ((p) & SLJIT_MEM) { \
+		SLJIT_ASSERT(FUNCTION_CHECK_IS_REG((p) & 0xf)); \
+		if ((p) & 0xf0) { \
+			SLJIT_ASSERT(FUNCTION_CHECK_IS_REG(((p) >> 4) & 0xf)); \
+			SLJIT_ASSERT(!((i) & ~0x3)); \
+		} \
+		SLJIT_ASSERT(((p) >> 9) == 0); \
+	} \
+	else \
+		SLJIT_ASSERT_STOP();
+
+#define FUNCTION_FCHECK(p, i) \
+	if ((p) >= SLJIT_FLOAT_REG1 && (p) <= SLJIT_FLOAT_REG4) \
+		SLJIT_ASSERT(i == 0); \
+	else if ((p) & SLJIT_MEM) { \
+		SLJIT_ASSERT(FUNCTION_CHECK_IS_REG((p) & 0xf)); \
+		if ((p) & 0xf0) { \
+			SLJIT_ASSERT(FUNCTION_CHECK_IS_REG(((p) >> 4) & 0xf)); \
+			SLJIT_ASSERT(((p) & 0xf0) != (SLJIT_LOCALS_REG << 4) && !(i & ~0x3)); \
+		} else \
+			SLJIT_ASSERT((((p) >> 4) & 0xf) == 0); \
+		SLJIT_ASSERT(((p) >> 9) == 0); \
+	} \
+	else \
+		SLJIT_ASSERT_STOP();
+
+#define FUNCTION_CHECK_OP1() \
+	if (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI) { \
+		SLJIT_ASSERT(!GET_ALL_FLAGS(op)); \
+	} \
+        if (GET_OPCODE(op) >= SLJIT_MOVU && GET_OPCODE(op) <= SLJIT_MOVU_SI) { \
+		SLJIT_ASSERT(!(src & SLJIT_MEM) || (src & 0xf) != SLJIT_LOCALS_REG); \
+		SLJIT_ASSERT(!(dst & SLJIT_MEM) || (dst & 0xf) != SLJIT_LOCALS_REG); \
+		if ((src & SLJIT_MEM) && (src & 0xf)) \
+			SLJIT_ASSERT((dst & 0xf) != (src & 0xf) && ((dst >> 4) & 0xf) != (src & 0xf)); \
+	}
+
+#endif
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_compiler_verbose(struct sljit_compiler *compiler, FILE* verbose)
+{
+	compiler->verbose = verbose;
+}
+
+static char* reg_names[] = {
+	(char*)"<noreg>", (char*)"t1", (char*)"t2", (char*)"t3",
+	(char*)"te1", (char*)"te2", (char*)"s1", (char*)"s2",
+	(char*)"s3", (char*)"se1", (char*)"se2", (char*)"lcr"
+};
+
+static char* freg_names[] = {
+	(char*)"<noreg>", (char*)"float_r1", (char*)"float_r2", (char*)"float_r3", (char*)"float_r4"
+};
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#ifdef _WIN64
+	#define SLJIT_PRINT_D	"I64"
+#else
+	#define SLJIT_PRINT_D	"l"
+#endif
+#else
+	#define SLJIT_PRINT_D	""
+#endif
+
+#define sljit_verbose_param(p, i) \
+	if ((p) & SLJIT_IMM) \
+		fprintf(compiler->verbose, "#%" SLJIT_PRINT_D "d", (i)); \
+	else if ((p) & SLJIT_MEM) { \
+		if ((p) & 0xf) { \
+			if (i) { \
+				if (((p) >> 4) & 0xf) \
+					fprintf(compiler->verbose, "[%s + %s * %d]", reg_names[(p) & 0xF], reg_names[((p) >> 4)& 0xF], 1 << (i)); \
+				else \
+					fprintf(compiler->verbose, "[%s + #%" SLJIT_PRINT_D "d]", reg_names[(p) & 0xF], (i)); \
+			} \
+			else { \
+				if (((p) >> 4) & 0xf) \
+					fprintf(compiler->verbose, "[%s + %s]", reg_names[(p) & 0xF], reg_names[((p) >> 4)& 0xF]); \
+				else \
+					fprintf(compiler->verbose, "[%s]", reg_names[(p) & 0xF]); \
+			} \
+		} \
+		else \
+			fprintf(compiler->verbose, "[#%" SLJIT_PRINT_D "d]", (i)); \
+	} else \
+		fprintf(compiler->verbose, "%s", reg_names[p]);
+#define sljit_verbose_fparam(p, i) \
+	if ((p) & SLJIT_MEM) { \
+		if ((p) & 0xf) { \
+			if (i) { \
+				if (((p) >> 4) & 0xf) \
+					fprintf(compiler->verbose, "[%s + %s * %d]", reg_names[(p) & 0xF], reg_names[((p) >> 4)& 0xF], 1 << (i)); \
+				else \
+					fprintf(compiler->verbose, "[%s + #%" SLJIT_PRINT_D "d]", reg_names[(p) & 0xF], (i)); \
+			} \
+			else { \
+				if (((p) >> 4) & 0xF) \
+					fprintf(compiler->verbose, "[%s + %s]", reg_names[(p) & 0xF], reg_names[((p) >> 4)& 0xF]); \
+				else \
+					fprintf(compiler->verbose, "[%s]", reg_names[(p) & 0xF]); \
+			} \
+		} \
+		else \
+			fprintf(compiler->verbose, "[#%" SLJIT_PRINT_D "d]", (i)); \
+	} else \
+		fprintf(compiler->verbose, "%s", freg_names[p]);
+
+static SLJIT_CONST char* op_names[] = {
+	/* op0 */
+	(char*)"breakpoint", (char*)"nop",
+	(char*)"umul", (char*)"smul", (char*)"udiv", (char*)"sdiv",
+	/* op1 */
+	(char*)"mov", (char*)"mov.ub", (char*)"mov.sb", (char*)"mov.uh",
+	(char*)"mov.sh", (char*)"mov.ui", (char*)"mov.si", (char*)"movu",
+	(char*)"movu.ub", (char*)"movu.sb", (char*)"movu.uh", (char*)"movu.sh",
+	(char*)"movu.ui", (char*)"movu.si", (char*)"not", (char*)"neg",
+	(char*)"clz",
+	/* op2 */
+	(char*)"add", (char*)"addc", (char*)"sub", (char*)"subc",
+	(char*)"mul", (char*)"and", (char*)"or", (char*)"xor",
+	(char*)"shl", (char*)"lshr", (char*)"ashr",
+	/* fop1 */
+	(char*)"fcmp", (char*)"fmov", (char*)"fneg", (char*)"fabs",
+	/* fop2 */
+	(char*)"fadd", (char*)"fsub", (char*)"fmul", (char*)"fdiv"
+};
+
+static char* jump_names[] = {
+	(char*)"c_equal", (char*)"c_not_equal",
+	(char*)"c_less", (char*)"c_greater_equal",
+	(char*)"c_greater", (char*)"c_less_equal",
+	(char*)"c_sig_less", (char*)"c_sig_greater_equal",
+	(char*)"c_sig_greater", (char*)"c_sig_less_equal",
+	(char*)"c_overflow", (char*)"c_not_overflow",
+	(char*)"c_mul_overflow", (char*)"c_mul_not_overflow",
+	(char*)"c_float_equal", (char*)"c_float_not_equal",
+	(char*)"c_float_less", (char*)"c_float_greater_equal",
+	(char*)"c_float_greater", (char*)"c_float_less_equal",
+	(char*)"c_float_nan", (char*)"c_float_not_nan",
+	(char*)"jump", (char*)"fast_call",
+	(char*)"call0", (char*)"call1", (char*)"call2", (char*)"call3"
+};
+
+#endif
+
+/* --------------------------------------------------------------------- */
+/*  Arch dependent                                                       */
+/* --------------------------------------------------------------------- */
+
+static SLJIT_INLINE void check_sljit_generate_code(struct sljit_compiler *compiler)
+{
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	struct sljit_jump *jump;
+#endif
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+
+	SLJIT_ASSERT(compiler->size > 0);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	jump = compiler->jumps;
+	while (jump) {
+		/* All jumps have target. */
+		SLJIT_ASSERT(jump->flags & (JUMP_LABEL | JUMP_ADDR));
+		jump = jump->next;
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(args);
+	SLJIT_UNUSED_ARG(temporaries);
+	SLJIT_UNUSED_ARG(saveds);
+	SLJIT_UNUSED_ARG(local_size);
+
+	SLJIT_ASSERT(args >= 0 && args <= 3);
+	SLJIT_ASSERT(temporaries >= 0 && temporaries <= SLJIT_NO_TMP_REGISTERS);
+	SLJIT_ASSERT(saveds >= 0 && saveds <= SLJIT_NO_GEN_REGISTERS);
+	SLJIT_ASSERT(args <= saveds);
+	SLJIT_ASSERT(local_size >= 0 && local_size <= SLJIT_MAX_LOCAL_SIZE);
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose))
+		fprintf(compiler->verbose, "  enter args=%d temporaries=%d saveds=%d local_size=%d\n", args, temporaries, saveds, local_size);
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(args);
+	SLJIT_UNUSED_ARG(temporaries);
+	SLJIT_UNUSED_ARG(saveds);
+	SLJIT_UNUSED_ARG(local_size);
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
+		compiler->skip_checks = 0;
+		return;
+	}
+#endif
+
+	SLJIT_ASSERT(args >= 0 && args <= 3);
+	SLJIT_ASSERT(temporaries >= 0 && temporaries <= SLJIT_NO_TMP_REGISTERS);
+	SLJIT_ASSERT(saveds >= 0 && saveds <= SLJIT_NO_GEN_REGISTERS);
+	SLJIT_ASSERT(args <= saveds);
+	SLJIT_ASSERT(local_size >= 0 && local_size <= SLJIT_MAX_LOCAL_SIZE);
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose))
+		fprintf(compiler->verbose, "  set_context args=%d temporaries=%d saveds=%d local_size=%d\n", args, temporaries, saveds, local_size);
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	if (op != SLJIT_UNUSED) {
+		SLJIT_ASSERT(op >= SLJIT_MOV && op <= SLJIT_MOV_SI);
+		FUNCTION_CHECK_SRC(src, srcw);
+	}
+	else
+		SLJIT_ASSERT(src == 0 && srcw == 0);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		if (op == SLJIT_UNUSED)
+			fprintf(compiler->verbose, "  return\n");
+		else {
+			fprintf(compiler->verbose, "  return %s ", op_names[op]);
+			sljit_verbose_param(src, srcw);
+			fprintf(compiler->verbose, "\n");
+		}
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_DST(dst, dstw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  fast_enter ");
+		sljit_verbose_param(dst, dstw);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_SRC(src, srcw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  fast_return ");
+		sljit_verbose_param(src, srcw);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_op0(struct sljit_compiler *compiler, int op)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+
+	SLJIT_ASSERT((op >= SLJIT_BREAKPOINT && op <= SLJIT_SMUL)
+		|| ((op & ~SLJIT_INT_OP) >= SLJIT_UDIV && (op & ~SLJIT_INT_OP) <= SLJIT_SDIV));
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose))
+		fprintf(compiler->verbose, "  %s%s\n", !(op & SLJIT_INT_OP) ? "" : "i", op_names[GET_OPCODE(op)]);
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_op1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
+		compiler->skip_checks = 0;
+		return;
+	}
+#endif
+
+	SLJIT_ASSERT(GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_CLZ);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_OP();
+	FUNCTION_CHECK_SRC(src, srcw);
+	FUNCTION_CHECK_DST(dst, dstw);
+	FUNCTION_CHECK_OP1();
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  %s%s%s%s%s%s%s%s ", !(op & SLJIT_INT_OP) ? "" : "i", op_names[GET_OPCODE(op)],
+			!(op & SLJIT_SET_E) ? "" : "E", !(op & SLJIT_SET_S) ? "" : "S", !(op & SLJIT_SET_U) ? "" : "U", !(op & SLJIT_SET_O) ? "" : "O", !(op & SLJIT_SET_C) ? "" : "C", !(op & SLJIT_KEEP_FLAGS) ? "" : "K");
+		sljit_verbose_param(dst, dstw);
+		fprintf(compiler->verbose, ", ");
+		sljit_verbose_param(src, srcw);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_op2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(src1);
+	SLJIT_UNUSED_ARG(src1w);
+	SLJIT_UNUSED_ARG(src2);
+	SLJIT_UNUSED_ARG(src2w);
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
+		compiler->skip_checks = 0;
+		return;
+	}
+#endif
+
+	SLJIT_ASSERT(GET_OPCODE(op) >= SLJIT_ADD && GET_OPCODE(op) <= SLJIT_ASHR);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_OP();
+	FUNCTION_CHECK_SRC(src1, src1w);
+	FUNCTION_CHECK_SRC(src2, src2w);
+	FUNCTION_CHECK_DST(dst, dstw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  %s%s%s%s%s%s%s%s ", !(op & SLJIT_INT_OP) ? "" : "i", op_names[GET_OPCODE(op)],
+			!(op & SLJIT_SET_E) ? "" : "E", !(op & SLJIT_SET_S) ? "" : "S", !(op & SLJIT_SET_U) ? "" : "U", !(op & SLJIT_SET_O) ? "" : "O", !(op & SLJIT_SET_C) ? "" : "C", !(op & SLJIT_KEEP_FLAGS) ? "" : "K");
+		sljit_verbose_param(dst, dstw);
+		fprintf(compiler->verbose, ", ");
+		sljit_verbose_param(src1, src1w);
+		fprintf(compiler->verbose, ", ");
+		sljit_verbose_param(src2, src2w);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_get_register_index(int reg)
+{
+	SLJIT_UNUSED_ARG(reg);
+	SLJIT_ASSERT(reg > 0 && reg <= SLJIT_NO_REGISTERS);
+}
+
+static SLJIT_INLINE void check_sljit_emit_op_custom(struct sljit_compiler *compiler,
+	void *instruction, int size)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(instruction);
+	SLJIT_UNUSED_ARG(size);
+	SLJIT_ASSERT(instruction);
+}
+
+static SLJIT_INLINE void check_sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
+		compiler->skip_checks = 0;
+		return;
+	}
+#endif
+
+	SLJIT_ASSERT(sljit_is_fpu_available());
+	SLJIT_ASSERT(GET_OPCODE(op) >= SLJIT_FCMP && GET_OPCODE(op) <= SLJIT_FABS);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_OP();
+	FUNCTION_FCHECK(src, srcw);
+	FUNCTION_FCHECK(dst, dstw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  %s%s%s ", op_names[GET_OPCODE(op)],
+			!(op & SLJIT_SET_E) ? "" : "E", !(op & SLJIT_SET_S) ? "" : "S");
+		sljit_verbose_fparam(dst, dstw);
+		fprintf(compiler->verbose, ", ");
+		sljit_verbose_fparam(src, srcw);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(src1);
+	SLJIT_UNUSED_ARG(src1w);
+	SLJIT_UNUSED_ARG(src2);
+	SLJIT_UNUSED_ARG(src2w);
+
+	SLJIT_ASSERT(sljit_is_fpu_available());
+	SLJIT_ASSERT(GET_OPCODE(op) >= SLJIT_FADD && GET_OPCODE(op) <= SLJIT_FDIV);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_OP();
+	FUNCTION_FCHECK(src1, src1w);
+	FUNCTION_FCHECK(src2, src2w);
+	FUNCTION_FCHECK(dst, dstw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  %s ", op_names[GET_OPCODE(op)]);
+		sljit_verbose_fparam(dst, dstw);
+		fprintf(compiler->verbose, ", ");
+		sljit_verbose_fparam(src1, src1w);
+		fprintf(compiler->verbose, ", ");
+		sljit_verbose_fparam(src2, src2w);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_label(struct sljit_compiler *compiler)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose))
+		fprintf(compiler->verbose, "label:\n");
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_jump(struct sljit_compiler *compiler, int type)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(type);
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
+		compiler->skip_checks = 0;
+		return;
+	}
+#endif
+
+	SLJIT_ASSERT(!(type & ~(0xff | SLJIT_REWRITABLE_JUMP)));
+	SLJIT_ASSERT((type & 0xff) >= SLJIT_C_EQUAL && (type & 0xff) <= SLJIT_CALL3);
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose))
+		fprintf(compiler->verbose, "  jump%s <%s>\n", !(type & SLJIT_REWRITABLE_JUMP) ? "" : "R", jump_names[type & 0xff]);
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_cmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(type);
+	SLJIT_UNUSED_ARG(src1);
+	SLJIT_UNUSED_ARG(src1w);
+	SLJIT_UNUSED_ARG(src2);
+	SLJIT_UNUSED_ARG(src2w);
+
+	SLJIT_ASSERT(!(type & ~(0xff | SLJIT_INT_OP | SLJIT_REWRITABLE_JUMP)));
+	SLJIT_ASSERT((type & 0xff) >= SLJIT_C_EQUAL && (type & 0xff) <= SLJIT_C_SIG_LESS_EQUAL);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_SRC(src1, src1w);
+	FUNCTION_CHECK_SRC(src2, src2w);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  %scmp%s <%s> ", !(type & SLJIT_INT_OP) ? "" : "i", !(type & SLJIT_REWRITABLE_JUMP) ? "" : "R", jump_names[type & 0xff]);
+		sljit_verbose_param(src1, src1w);
+		fprintf(compiler->verbose, ", ");
+		sljit_verbose_param(src2, src2w);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_fcmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(type);
+	SLJIT_UNUSED_ARG(src1);
+	SLJIT_UNUSED_ARG(src1w);
+	SLJIT_UNUSED_ARG(src2);
+	SLJIT_UNUSED_ARG(src2w);
+
+	SLJIT_ASSERT(sljit_is_fpu_available());
+	SLJIT_ASSERT(!(type & ~(0xff | SLJIT_REWRITABLE_JUMP)));
+	SLJIT_ASSERT((type & 0xff) >= SLJIT_C_FLOAT_EQUAL && (type & 0xff) <= SLJIT_C_FLOAT_NOT_NAN);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_FCHECK(src1, src1w);
+	FUNCTION_FCHECK(src2, src2w);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  fcmp%s <%s> ", !(type & SLJIT_REWRITABLE_JUMP) ? "" : "R", jump_names[type & 0xff]);
+		sljit_verbose_fparam(src1, src1w);
+		fprintf(compiler->verbose, ", ");
+		sljit_verbose_fparam(src2, src2w);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(type);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+
+	SLJIT_ASSERT(type >= SLJIT_JUMP && type <= SLJIT_CALL3);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_SRC(src, srcw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  ijump <%s> ", jump_names[type]);
+		sljit_verbose_param(src, srcw);
+		fprintf(compiler->verbose, "\n");
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(type);
+
+	SLJIT_ASSERT(type >= SLJIT_C_EQUAL && type < SLJIT_JUMP);
+	SLJIT_ASSERT(op == SLJIT_MOV || GET_OPCODE(op) == SLJIT_OR);
+	SLJIT_ASSERT(GET_ALL_FLAGS(op) == 0 || GET_ALL_FLAGS(op) == SLJIT_SET_E || GET_ALL_FLAGS(op) == SLJIT_KEEP_FLAGS);
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_DST(dst, dstw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  cond_set%s%s <%s> ", !(op & SLJIT_SET_E) ? "" : "E",
+			!(op & SLJIT_KEEP_FLAGS) ? "" : "K", op_names[GET_OPCODE(op)]);
+		sljit_verbose_param(dst, dstw);
+		fprintf(compiler->verbose, ", <%s>\n", jump_names[type]);
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_get_local_base(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w offset)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(offset);
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_DST(dst, dstw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  local_base ");
+		sljit_verbose_param(dst, dstw);
+		fprintf(compiler->verbose, ", #%" SLJIT_PRINT_D "d\n", offset);
+	}
+#endif
+}
+
+static SLJIT_INLINE void check_sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
+{
+	/* If debug and verbose are disabled, all arguments are unused. */
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(init_value);
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	FUNCTION_CHECK_DST(dst, dstw);
+#endif
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
+		fprintf(compiler->verbose, "  const ");
+		sljit_verbose_param(dst, dstw);
+		fprintf(compiler->verbose, ", #%" SLJIT_PRINT_D "d\n", init_value);
+	}
+#endif
+}
+
+static SLJIT_INLINE int emit_mov_before_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	/* Return if don't need to do anything. */
+	if (op == SLJIT_UNUSED)
+		return SLJIT_SUCCESS;
+
+#if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
+	if (src == SLJIT_RETURN_REG && op == SLJIT_MOV)
+		return SLJIT_SUCCESS;
+#else
+	if (src == SLJIT_RETURN_REG && (op == SLJIT_MOV || op == SLJIT_MOV_UI || op == SLJIT_MOV_SI))
+		return SLJIT_SUCCESS;
+#endif
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->skip_checks = 1;
+#endif
+	return sljit_emit_op1(compiler, op, SLJIT_RETURN_REG, 0, src, srcw);
+}
+
+/* CPU description section */
+
+#if (defined SLJIT_32BIT_ARCHITECTURE && SLJIT_32BIT_ARCHITECTURE)
+#define SLJIT_CPUINFO_PART1 " 32bit ("
+#elif (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
+#define SLJIT_CPUINFO_PART1 " 64bit ("
+#else
+#error "Internal error: CPU type info missing"
+#endif
+
+#if (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
+#define SLJIT_CPUINFO_PART2 "little endian + "
+#elif (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN)
+#define SLJIT_CPUINFO_PART2 "big endian + "
+#else
+#error "Internal error: CPU type info missing"
+#endif
+
+#if (defined SLJIT_UNALIGNED && SLJIT_UNALIGNED)
+#define SLJIT_CPUINFO_PART3 "unaligned)"
+#else
+#define SLJIT_CPUINFO_PART3 "aligned)"
+#endif
+
+#define SLJIT_CPUINFO SLJIT_CPUINFO_PART1 SLJIT_CPUINFO_PART2 SLJIT_CPUINFO_PART3
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	#include "sljitNativeX86_common.c"
+#elif (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	#include "sljitNativeX86_common.c"
+#elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	#include "sljitNativeARM_v5.c"
+#elif (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+	#include "sljitNativeARM_v5.c"
+#elif (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
+	#include "sljitNativeARM_Thumb2.c"
+#elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+	#include "sljitNativePPC_common.c"
+#elif (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	#include "sljitNativePPC_common.c"
+#elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+	#include "sljitNativeMIPS_common.c"
+#endif
+
+#if !(defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	/* Default compare for most architectures. */
+	int flags, tmp_src, condition;
+	sljit_w tmp_srcw;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w);
+
+	condition = type & 0xff;
+	if (SLJIT_UNLIKELY((src1 & SLJIT_IMM) && !(src2 & SLJIT_IMM))) {
+		/* Immediate is prefered as second argument by most architectures. */
+		switch (condition) {
+		case SLJIT_C_LESS:
+			condition = SLJIT_C_GREATER;
+			break;
+		case SLJIT_C_GREATER_EQUAL:
+			condition = SLJIT_C_LESS_EQUAL;
+			break;
+		case SLJIT_C_GREATER:
+			condition = SLJIT_C_LESS;
+			break;
+		case SLJIT_C_LESS_EQUAL:
+			condition = SLJIT_C_GREATER_EQUAL;
+			break;
+		case SLJIT_C_SIG_LESS:
+			condition = SLJIT_C_SIG_GREATER;
+			break;
+		case SLJIT_C_SIG_GREATER_EQUAL:
+			condition = SLJIT_C_SIG_LESS_EQUAL;
+			break;
+		case SLJIT_C_SIG_GREATER:
+			condition = SLJIT_C_SIG_LESS;
+			break;
+		case SLJIT_C_SIG_LESS_EQUAL:
+			condition = SLJIT_C_SIG_GREATER_EQUAL;
+			break;
+		}
+		type = condition | (type & (SLJIT_INT_OP | SLJIT_REWRITABLE_JUMP));
+		tmp_src = src1;
+		src1 = src2;
+		src2 = tmp_src;
+		tmp_srcw = src1w;
+		src1w = src2w;
+		src2w = tmp_srcw;
+	}
+
+	if (condition <= SLJIT_C_NOT_ZERO)
+		flags = SLJIT_SET_E;
+	else if (condition <= SLJIT_C_LESS_EQUAL)
+		flags = SLJIT_SET_U;
+	else
+		flags = SLJIT_SET_S;
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->skip_checks = 1;
+#endif
+	PTR_FAIL_IF(sljit_emit_op2(compiler, SLJIT_SUB | flags | (type & SLJIT_INT_OP),
+		SLJIT_UNUSED, 0, src1, src1w, src2, src2w));
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->skip_checks = 1;
+#endif
+	return sljit_emit_jump(compiler, condition | (type & SLJIT_REWRITABLE_JUMP));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	int flags, condition;
+
+	check_sljit_emit_fcmp(compiler, type, src1, src1w, src2, src2w);
+
+	condition = type & 0xff;
+	if (condition <= SLJIT_C_FLOAT_NOT_EQUAL)
+		flags = SLJIT_SET_E;
+	else
+		flags = SLJIT_SET_S;
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->skip_checks = 1;
+#endif
+	sljit_emit_fop1(compiler, SLJIT_FCMP | flags, src1, src1w, src2, src2w);
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->skip_checks = 1;
+#endif
+	return sljit_emit_jump(compiler, condition | (type & SLJIT_REWRITABLE_JUMP));
+}
+
+#endif
+
+#if !(defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) && !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_local_base(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w offset)
+{
+	CHECK_ERROR();
+	check_sljit_get_local_base(compiler, dst, dstw, offset);
+
+	ADJUST_LOCAL_OFFSET(SLJIT_MEM1(SLJIT_LOCALS_REG), offset);
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->skip_checks = 1;
+#endif
+	if (offset != 0)
+		return sljit_emit_op2(compiler, SLJIT_ADD | SLJIT_KEEP_FLAGS, dst, dstw, SLJIT_LOCALS_REG, 0, SLJIT_IMM, offset);
+	return sljit_emit_op1(compiler, SLJIT_MOV, dst, dstw, SLJIT_LOCALS_REG, 0);
+}
+
+#endif
+
+#else /* SLJIT_CONFIG_UNSUPPORTED */
+
+/* Empty function bodies for those machines, which are not (yet) supported. */
+
+SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
+{
+	return "unsupported";
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_compiler* sljit_create_compiler(void)
+{
+	SLJIT_ASSERT_STOP();
+	return NULL;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_compiler(struct sljit_compiler *compiler)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_ASSERT_STOP();
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_alloc_memory(struct sljit_compiler *compiler, int size)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(size);
+	SLJIT_ASSERT_STOP();
+	return NULL;
+}
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+SLJIT_API_FUNC_ATTRIBUTE void sljit_compiler_verbose(struct sljit_compiler *compiler, FILE* verbose)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(verbose);
+	SLJIT_ASSERT_STOP();
+}
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_ASSERT_STOP();
+	return NULL;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code)
+{
+	SLJIT_UNUSED_ARG(code);
+	SLJIT_ASSERT_STOP();
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(args);
+	SLJIT_UNUSED_ARG(temporaries);
+	SLJIT_UNUSED_ARG(saveds);
+	SLJIT_UNUSED_ARG(local_size);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(args);
+	SLJIT_UNUSED_ARG(temporaries);
+	SLJIT_UNUSED_ARG(saveds);
+	SLJIT_UNUSED_ARG(local_size);
+	SLJIT_ASSERT_STOP();
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int saveds, int local_size)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(args);
+	SLJIT_UNUSED_ARG(temporaries);
+	SLJIT_UNUSED_ARG(saveds);
+	SLJIT_UNUSED_ARG(local_size);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(src1);
+	SLJIT_UNUSED_ARG(src1w);
+	SLJIT_UNUSED_ARG(src2);
+	SLJIT_UNUSED_ARG(src2w);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
+{
+	SLJIT_ASSERT_STOP();
+	return reg;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
+	void *instruction, int size)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(instruction);
+	SLJIT_UNUSED_ARG(size);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
+{
+	SLJIT_ASSERT_STOP();
+	return 0;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(src1);
+	SLJIT_UNUSED_ARG(src1w);
+	SLJIT_UNUSED_ARG(src2);
+	SLJIT_UNUSED_ARG(src2w);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_ASSERT_STOP();
+	return NULL;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(type);
+	SLJIT_ASSERT_STOP();
+	return NULL;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(type);
+	SLJIT_UNUSED_ARG(src1);
+	SLJIT_UNUSED_ARG(src1w);
+	SLJIT_UNUSED_ARG(src2);
+	SLJIT_UNUSED_ARG(src2w);
+	SLJIT_ASSERT_STOP();
+	return NULL;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(type);
+	SLJIT_UNUSED_ARG(src1);
+	SLJIT_UNUSED_ARG(src1w);
+	SLJIT_UNUSED_ARG(src2);
+	SLJIT_UNUSED_ARG(src2w);
+	SLJIT_ASSERT_STOP();
+	return NULL;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_label(struct sljit_jump *jump, struct sljit_label* label)
+{
+	SLJIT_UNUSED_ARG(jump);
+	SLJIT_UNUSED_ARG(label);
+	SLJIT_ASSERT_STOP();
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_target(struct sljit_jump *jump, sljit_uw target)
+{
+	SLJIT_UNUSED_ARG(jump);
+	SLJIT_UNUSED_ARG(target);
+	SLJIT_ASSERT_STOP();
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(type);
+	SLJIT_UNUSED_ARG(src);
+	SLJIT_UNUSED_ARG(srcw);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(op);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(type);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_local_base(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w offset)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(offset);
+	SLJIT_ASSERT_STOP();
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w initval)
+{
+	SLJIT_UNUSED_ARG(compiler);
+	SLJIT_UNUSED_ARG(dst);
+	SLJIT_UNUSED_ARG(dstw);
+	SLJIT_UNUSED_ARG(initval);
+	SLJIT_ASSERT_STOP();
+	return NULL;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+	SLJIT_UNUSED_ARG(addr);
+	SLJIT_UNUSED_ARG(new_addr);
+	SLJIT_ASSERT_STOP();
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
+{
+	SLJIT_UNUSED_ARG(addr);
+	SLJIT_UNUSED_ARG(new_constant);
+	SLJIT_ASSERT_STOP();
+}
+
+#endif
diff --git a/8.31/sljit/sljitLir.h b/8.31/sljit/sljitLir.h
new file mode 100644
index 0000000..23fea0f
--- /dev/null
+++ b/8.31/sljit/sljitLir.h
@@ -0,0 +1,863 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SLJIT_LIR_H_
+#define _SLJIT_LIR_H_
+
+/*
+   ------------------------------------------------------------------------
+    Stack-Less JIT compiler for multiple architectures (x86, ARM, PowerPC)
+   ------------------------------------------------------------------------
+
+   Short description
+    Advantages:
+      - The execution can be continued from any LIR instruction
+        In other words, jump into and out of the code is safe
+      - Both target of (conditional) jump and call instructions
+        and constants can be dynamically modified during runtime
+        - although it is not suggested to do it frequently
+        - very effective to cache an important value once
+      - A fixed stack space can be allocated for local variables
+      - The compiler is thread-safe
+      - The compiler is highly configurable through preprocessor macros.
+        You can disable unneeded features (multithreading in single
+        threaded applications), and you can use your own system functions
+        (including memory allocators). See sljitConfig.h
+    Disadvantages:
+      - Limited number of registers (only 6+4 integer registers, max 3+2
+        temporary, max 3+2 saved and 4 floating point registers)
+    In practice:
+      - This approach is very effective for interpreters
+        - One of the saved registers typically points to a stack interface
+        - It can jump to any exception handler anytime (even for another
+          function. It is safe for SLJIT.)
+        - Fast paths can be modified during runtime reflecting the changes
+          of the fastest execution path of the dynamic language
+        - SLJIT supports complex memory addressing modes
+        - mainly position independent code
+      - Optimizations (perhaps later)
+        - Only for basic blocks (when no labels inserted between LIR instructions)
+
+    For valgrind users:
+      - pass --smc-check=all argument to valgrind, since JIT is a "self-modifying code"
+*/
+
+#if !(defined SLJIT_NO_DEFAULT_CONFIG && SLJIT_NO_DEFAULT_CONFIG)
+#include "sljitConfig.h"
+#endif
+
+/* The following header file defines useful macros for fine tuning
+sljit based code generators. They are listed in the begining
+of sljitConfigInternal.h */
+
+#include "sljitConfigInternal.h"
+
+/* --------------------------------------------------------------------- */
+/*  Error codes                                                          */
+/* --------------------------------------------------------------------- */
+
+/* Indicates no error. */
+#define SLJIT_SUCCESS			0
+/* After the call of sljit_generate_code(), the error code of the compiler
+   is set to this value to avoid future sljit calls (in debug mode at least).
+   The complier should be freed after sljit_generate_code(). */
+#define SLJIT_ERR_COMPILED		1
+/* Cannot allocate non executable memory. */
+#define SLJIT_ERR_ALLOC_FAILED		2
+/* Cannot allocate executable memory.
+   Only for sljit_generate_code() */
+#define SLJIT_ERR_EX_ALLOC_FAILED	3
+/* return value for SLJIT_CONFIG_UNSUPPORTED empty architecture. */
+#define SLJIT_ERR_UNSUPPORTED		4
+
+/* --------------------------------------------------------------------- */
+/*  Registers                                                            */
+/* --------------------------------------------------------------------- */
+
+#define SLJIT_UNUSED		0
+
+/* Temporary (scratch) registers may not preserve their values across function calls. */
+#define SLJIT_TEMPORARY_REG1	1
+#define SLJIT_TEMPORARY_REG2	2
+#define SLJIT_TEMPORARY_REG3	3
+/* Note: Extra Registers cannot be used for memory addressing. */
+/* Note: on x86-32, these registers are emulated (using stack loads & stores). */
+#define SLJIT_TEMPORARY_EREG1	4
+#define SLJIT_TEMPORARY_EREG2	5
+
+/* Saved registers whose preserve their values across function calls. */
+#define SLJIT_SAVED_REG1	6
+#define SLJIT_SAVED_REG2	7
+#define SLJIT_SAVED_REG3	8
+/* Note: Extra Registers cannot be used for memory addressing. */
+/* Note: on x86-32, these registers are emulated (using stack loads & stores). */
+#define SLJIT_SAVED_EREG1	9
+#define SLJIT_SAVED_EREG2	10
+
+/* Read-only register (cannot be the destination of an operation).
+   Only SLJIT_MEM1(SLJIT_LOCALS_REG) addressing mode is allowed since
+   several ABIs has certain limitations about the stack layout. However
+   sljit_get_local_base() can be used to obtain the offset of a value. */
+#define SLJIT_LOCALS_REG	11
+
+/* Number of registers. */
+#define SLJIT_NO_TMP_REGISTERS	5
+#define SLJIT_NO_GEN_REGISTERS	5
+#define SLJIT_NO_REGISTERS	11
+
+/* Return with machine word. */
+
+#define SLJIT_RETURN_REG	SLJIT_TEMPORARY_REG1
+
+/* x86 prefers specific registers for special purposes. In case of shift
+   by register it supports only SLJIT_TEMPORARY_REG3 for shift argument
+   (which is the src2 argument of sljit_emit_op2). If another register is
+   used, sljit must exchange data between registers which cause a minor
+   slowdown. Other architectures has no such limitation. */
+
+#define SLJIT_PREF_SHIFT_REG	SLJIT_TEMPORARY_REG3
+
+/* --------------------------------------------------------------------- */
+/*  Floating point registers                                             */
+/* --------------------------------------------------------------------- */
+
+/* Note: SLJIT_UNUSED as destination is not valid for floating point
+     operations, since they cannot be used for setting flags. */
+
+/* Floating point operations are performed on double precision values. */
+
+#define SLJIT_FLOAT_REG1	1
+#define SLJIT_FLOAT_REG2	2
+#define SLJIT_FLOAT_REG3	3
+#define SLJIT_FLOAT_REG4	4
+
+/* --------------------------------------------------------------------- */
+/*  Main structures and functions                                        */
+/* --------------------------------------------------------------------- */
+
+struct sljit_memory_fragment {
+	struct sljit_memory_fragment *next;
+	sljit_uw used_size;
+	sljit_ub memory[1];
+};
+
+struct sljit_label {
+	struct sljit_label *next;
+	sljit_uw addr;
+	/* The maximum size difference. */
+	sljit_uw size;
+};
+
+struct sljit_jump {
+	struct sljit_jump *next;
+	sljit_uw addr;
+	sljit_w flags;
+	union {
+		sljit_uw target;
+		struct sljit_label* label;
+	} u;
+};
+
+struct sljit_const {
+	struct sljit_const *next;
+	sljit_uw addr;
+};
+
+struct sljit_compiler {
+	int error;
+
+	struct sljit_label *labels;
+	struct sljit_jump *jumps;
+	struct sljit_const *consts;
+	struct sljit_label *last_label;
+	struct sljit_jump *last_jump;
+	struct sljit_const *last_const;
+
+	struct sljit_memory_fragment *buf;
+	struct sljit_memory_fragment *abuf;
+
+	/* Used local registers. */
+	int temporaries;
+	/* Used saved registers. */
+	int saveds;
+	/* Local stack size. */
+	int local_size;
+	/* Code size. */
+	sljit_uw size;
+	/* For statistical purposes. */
+	sljit_uw executable_size;
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	int args;
+	int locals_offset;
+	int temporaries_start;
+	int saveds_start;
+#endif
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	int mode32;
+#endif
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	int flags_saved;
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	/* Constant pool handling. */
+	sljit_uw *cpool;
+	sljit_ub *cpool_unique;
+	sljit_uw cpool_diff;
+	sljit_uw cpool_fill;
+	/* Other members. */
+	/* Contains pointer, "ldr pc, [...]" pairs. */
+	sljit_uw patches;
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+	/* Temporary fields. */
+	sljit_uw shift_imm;
+	int cache_arg;
+	sljit_w cache_argw;
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
+	int cache_arg;
+	sljit_w cache_argw;
+#endif
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	sljit_w imm;
+	int cache_arg;
+	sljit_w cache_argw;
+#endif
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+	int delay_slot;
+	int cache_arg;
+	sljit_w cache_argw;
+#endif
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+	FILE* verbose;
+#endif
+
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	/* Local size passed to the functions. */
+	int logical_local_size;
+#endif
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	int skip_checks;
+#endif
+};
+
+/* --------------------------------------------------------------------- */
+/*  Main functions                                                       */
+/* --------------------------------------------------------------------- */
+
+/* Creates an sljit compiler.
+   Returns NULL if failed. */
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_compiler* sljit_create_compiler(void);
+/* Free everything except the codes. */
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_compiler(struct sljit_compiler *compiler);
+
+static SLJIT_INLINE int sljit_get_compiler_error(struct sljit_compiler *compiler) { return compiler->error; }
+
+/*
+   Allocate a small amount of memory. The size must be <= 64 bytes on 32 bit,
+   and <= 128 bytes on 64 bit architectures. The memory area is owned by the compiler,
+   and freed by sljit_free_compiler. The returned pointer is sizeof(sljit_w) aligned.
+   Excellent for allocating small blocks during the compiling, and no need to worry
+   about freeing them. The size is enough to contain at most 16 pointers.
+   If the size is outside of the range, the function will return with NULL,
+   but this return value does not indicate that there is no more memory (does
+   not set the compiler to out-of-memory status).
+*/
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_alloc_memory(struct sljit_compiler *compiler, int size);
+
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
+/* Passing NULL disables verbose. */
+SLJIT_API_FUNC_ATTRIBUTE void sljit_compiler_verbose(struct sljit_compiler *compiler, FILE* verbose);
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler);
+SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code);
+
+/*
+   After the code generation we can retrieve the allocated executable memory size,
+   although this area may not be fully filled with instructions depending on some
+   optimizations. This function is useful only for statistical purposes.
+
+   Before a successful code generation, this function returns with 0.
+*/
+static SLJIT_INLINE sljit_uw sljit_get_generated_code_size(struct sljit_compiler *compiler) { return compiler->executable_size; }
+
+/* Instruction generation. Returns with error code. */
+
+/*
+   The executable code is basically a function call from the viewpoint of
+   the C language. The function calls must obey to the ABI (Application
+   Binary Interface) of the platform, which specify the purpose of machine
+   registers and stack handling among other things. The sljit_emit_enter
+   function emits the necessary instructions for setting up a new context
+   for the executable code and moves function arguments to the saved
+   registers. The number of arguments are specified in the "args"
+   parameter and the first argument goes to SLJIT_SAVED_REG1, the second
+   goes to SLJIT_SAVED_REG2 and so on. The number of temporary and
+   saved registers are passed in "temporaries" and "saveds" arguments
+   respectively. Since the saved registers contains the arguments,
+   "args" must be less or equal than "saveds". The sljit_emit_enter
+   is also capable of allocating a stack space for local variables. The
+   "local_size" argument contains the size in bytes of this local area
+   and its staring address is stored in SLJIT_LOCALS_REG. However
+   the SLJIT_LOCALS_REG is not necessary the machine stack pointer.
+   The memory bytes between SLJIT_LOCALS_REG (inclusive) and
+   SLJIT_LOCALS_REG + local_size (exclusive) can be modified freely
+   until the function returns. The stack space is uninitialized.
+
+   Note: every call of sljit_emit_enter and sljit_set_context overwrites
+         the previous context. */
+
+#define SLJIT_MAX_LOCAL_SIZE	65536
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler,
+	int args, int temporaries, int saveds, int local_size);
+
+/* The machine code has a context (which contains the local stack space size,
+   number of used registers, etc.) which initialized by sljit_emit_enter. Several
+   functions (like sljit_emit_return) requres this context to be able to generate
+   the appropriate code. However, some code fragments (like inline cache) may have
+   no normal entry point so their context is unknown for the compiler. Using the
+   function below we can specify thir context.
+
+   Note: every call of sljit_emit_enter and sljit_set_context overwrites
+         the previous context. */
+
+/* Note: multiple calls of this function overwrites the previous call. */
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler,
+	int args, int temporaries, int saveds, int local_size);
+
+/* Return from machine code.  The op argument can be SLJIT_UNUSED which means the
+   function does not return with anything or any opcode between SLJIT_MOV and
+   SLJIT_MOV_SI (see sljit_emit_op1). As for src and srcw they must be 0 if op
+   is SLJIT_UNUSED, otherwise see below the description about source and
+   destination arguments. */
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op,
+	int src, sljit_w srcw);
+
+/* Really fast calling method for utility functions inside sljit (see SLJIT_FAST_CALL).
+   All registers and even the stack frame is passed to the callee. The return address is
+   preserved in dst/dstw by sljit_emit_fast_enter, and sljit_emit_fast_return can
+   use this as a return value later. */
+
+/* Note: only for sljit specific, non ABI compilant calls. Fast, since only a few machine instructions
+   are needed. Excellent for small uility functions, where saving registers and setting up
+   a new stack frame would cost too much performance. However, it is still possible to return
+   to the address of the caller (or anywhere else). */
+
+/* Note: flags are not changed (unlike sljit_emit_enter / sljit_emit_return). */
+
+/* Note: although sljit_emit_fast_return could be replaced by an ijump, it is not suggested,
+   since many architectures do clever branch prediction on call / return instruction pairs. */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw);
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw);
+
+/*
+   Source and destination values for arithmetical instructions
+    imm              - a simple immediate value (cannot be used as a destination)
+    reg              - any of the registers (immediate argument must be 0)
+    [imm]            - absolute immediate memory address
+    [reg+imm]        - indirect memory address
+    [reg+(reg<<imm)] - indirect indexed memory address (shift must be between 0 and 3)
+                       useful for (byte, half, int, sljit_w) array access
+                       (fully supported by both x86 and ARM architectures, and cheap operation on others)
+*/
+
+/*
+   IMPORATNT NOTE: memory access MUST be naturally aligned except
+                   SLJIT_UNALIGNED macro is defined and its value is 1.
+
+     length | alignment
+   ---------+-----------
+     byte   | 1 byte (not aligned)
+     half   | 2 byte (real_address & 0x1 == 0)
+     int    | 4 byte (real_address & 0x3 == 0)
+    sljit_w | 4 byte if SLJIT_32BIT_ARCHITECTURE is defined and its value is 1
+            | 8 byte if SLJIT_64BIT_ARCHITECTURE is defined and its value is 1
+
+   Note: different architectures have different addressing limitations
+         Thus sljit may generate several instructions for other addressing modes
+   x86:  all addressing modes supported, but write-back is not supported
+         (requires an extra instruction). On x86-64 only 32 bit signed
+         integers are supported by the architecture.
+   arm:  [reg+imm] supported for small immediates (-4095 <= imm <= 4095
+         or -255 <= imm <= 255 for loading signed bytes, any halfs or doubles)
+         [reg+(reg<<imm)] are supported or requires only two instructions
+         Write back is limited to small immediates on thumb2
+   ppc:  [reg+imm], -65535 <= imm <= 65535. 64 bit moves requires immediates
+         divisible by 4. [reg+reg] supported, write-back supported
+         [reg+(reg<<imm)] (imm != 0) is cheap (requires two instructions)
+*/
+
+/* Register output: simply the name of the register.
+   For destination, you can use SLJIT_UNUSED as well. */
+#define SLJIT_MEM		0x100
+#define SLJIT_MEM0()		(SLJIT_MEM)
+#define SLJIT_MEM1(r1)		(SLJIT_MEM | (r1))
+#define SLJIT_MEM2(r1, r2)	(SLJIT_MEM | (r1) | ((r2) << 4))
+#define SLJIT_IMM		0x200
+
+/* Set 32 bit operation mode (I) on 64 bit CPUs. The flag is totally ignored on
+   32 bit CPUs. The arithmetic instruction uses only the lower 32 bit of the
+   input register(s), and set the flags according to the 32 bit result. If the
+   destination is a register, the higher 32 bit of the result is undefined.
+   The addressing modes (SLJIT_MEM1/SLJIT_MEM2 macros) are unaffected by this flag. */
+#define SLJIT_INT_OP		0x100
+
+/* Common CPU status flags for all architectures (x86, ARM, PPC)
+    - carry flag
+    - overflow flag
+    - zero flag
+    - negative/positive flag (depends on arc)
+   On mips, these flags are emulated by software. */
+
+/* By default, the instructions may, or may not set the CPU status flags.
+   Forcing to set or keep status flags can be done with the following flags: */
+
+/* Note: sljit tries to emit the minimum number of instructions. Using these
+   flags can increase them, so use them wisely to avoid unnecessary code generation. */
+
+/* Set Equal (Zero) status flag (E). */
+#define SLJIT_SET_E			0x0200
+/* Set signed status flag (S). */
+#define SLJIT_SET_S			0x0400
+/* Set unsgined status flag (U). */
+#define SLJIT_SET_U			0x0800
+/* Set signed overflow flag (O). */
+#define SLJIT_SET_O			0x1000
+/* Set carry flag (C).
+   Note: Kinda unsigned overflow, but behaves differently on various cpus. */
+#define SLJIT_SET_C			0x2000
+/* Do not modify the flags (K).
+   Note: This flag cannot be combined with any other SLJIT_SET_* flag. */
+#define SLJIT_KEEP_FLAGS		0x4000
+
+/* Notes:
+     - you cannot postpone conditional jump instructions except if noted that
+       the instruction does not set flags (See: SLJIT_KEEP_FLAGS).
+     - flag combinations: '|' means 'logical or'. */
+
+/* Flags: - (never set any flags)
+   Note: breakpoint instruction is not supported by all architectures (namely ppc)
+         It falls back to SLJIT_NOP in those cases. */
+#define SLJIT_BREAKPOINT		0
+/* Flags: - (never set any flags)
+   Note: may or may not cause an extra cycle wait
+         it can even decrease the runtime in a few cases. */
+#define SLJIT_NOP			1
+/* Flags: may destroy flags
+   Unsigned multiplication of SLJIT_TEMPORARY_REG1 and SLJIT_TEMPORARY_REG2.
+   Result goes to SLJIT_TEMPORARY_REG2:SLJIT_TEMPORARY_REG1 (high:low) word */
+#define SLJIT_UMUL			2
+/* Flags: may destroy flags
+   Signed multiplication of SLJIT_TEMPORARY_REG1 and SLJIT_TEMPORARY_REG2.
+   Result goes to SLJIT_TEMPORARY_REG2:SLJIT_TEMPORARY_REG1 (high:low) word */
+#define SLJIT_SMUL			3
+/* Flags: I | may destroy flags
+   Unsigned divide of the value in SLJIT_TEMPORARY_REG1 by the value in SLJIT_TEMPORARY_REG2.
+   The result is placed in SLJIT_TEMPORARY_REG1 and the remainder goes to SLJIT_TEMPORARY_REG2.
+   Note: if SLJIT_TEMPORARY_REG2 contains 0, the behaviour is undefined. */
+#define SLJIT_UDIV			4
+/* Flags: I | may destroy flags
+   Signed divide of the value in SLJIT_TEMPORARY_REG1 by the value in SLJIT_TEMPORARY_REG2.
+   The result is placed in SLJIT_TEMPORARY_REG1 and the remainder goes to SLJIT_TEMPORARY_REG2.
+   Note: if SLJIT_TEMPORARY_REG2 contains 0, the behaviour is undefined. */
+#define SLJIT_SDIV			5
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op);
+
+/* Notes for MOV instructions:
+   U = Mov with update (post form). If source or destination defined as SLJIT_MEM1(r1)
+       or SLJIT_MEM2(r1, r2), r1 is increased by the sum of r2 and the constant argument
+   UB = unsigned byte (8 bit)
+   SB = signed byte (8 bit)
+   UH = unsgined half (16 bit)
+   SH = unsgined half (16 bit) */
+
+/* Flags: - (never set any flags) */
+#define SLJIT_MOV			6
+/* Flags: - (never set any flags) */
+#define SLJIT_MOV_UB			7
+/* Flags: - (never set any flags) */
+#define SLJIT_MOV_SB			8
+/* Flags: - (never set any flags) */
+#define SLJIT_MOV_UH			9
+/* Flags: - (never set any flags) */
+#define SLJIT_MOV_SH			10
+/* Flags: - (never set any flags) */
+#define SLJIT_MOV_UI			11
+/* Flags: - (never set any flags) */
+#define SLJIT_MOV_SI			12
+/* Flags: - (never set any flags) */
+#define SLJIT_MOVU			13
+/* Flags: - (never set any flags) */
+#define SLJIT_MOVU_UB			14
+/* Flags: - (never set any flags) */
+#define SLJIT_MOVU_SB			15
+/* Flags: - (never set any flags) */
+#define SLJIT_MOVU_UH			16
+/* Flags: - (never set any flags) */
+#define SLJIT_MOVU_SH			17
+/* Flags: - (never set any flags) */
+#define SLJIT_MOVU_UI			18
+/* Flags: - (never set any flags) */
+#define SLJIT_MOVU_SI			19
+/* Flags: I | E | K */
+#define SLJIT_NOT			20
+/* Flags: I | E | O | K */
+#define SLJIT_NEG			21
+/* Count leading zeroes
+   Flags: I | E | K */
+#define SLJIT_CLZ			22
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw);
+
+/* Flags: I | E | O | C | K */
+#define SLJIT_ADD			23
+/* Flags: I | C | K */
+#define SLJIT_ADDC			24
+/* Flags: I | E | S | U | O | C | K */
+#define SLJIT_SUB			25
+/* Flags: I | C | K */
+#define SLJIT_SUBC			26
+/* Note: integer mul
+   Flags: I | O (see SLJIT_C_MUL_*) | K */
+#define SLJIT_MUL			27
+/* Flags: I | E | K */
+#define SLJIT_AND			28
+/* Flags: I | E | K */
+#define SLJIT_OR			29
+/* Flags: I | E | K */
+#define SLJIT_XOR			30
+/* Flags: I | E | K
+   Let bit_length be the length of the shift operation: 32 or 64.
+   If src2 is immediate, src2w is masked by (bit_length - 1).
+   Otherwise, if the content of src2 is outside the range from 0
+   to bit_length - 1, the operation is undefined. */
+#define SLJIT_SHL			31
+/* Flags: I | E | K
+   Let bit_length be the length of the shift operation: 32 or 64.
+   If src2 is immediate, src2w is masked by (bit_length - 1).
+   Otherwise, if the content of src2 is outside the range from 0
+   to bit_length - 1, the operation is undefined. */
+#define SLJIT_LSHR			32
+/* Flags: I | E | K
+   Let bit_length be the length of the shift operation: 32 or 64.
+   If src2 is immediate, src2w is masked by (bit_length - 1).
+   Otherwise, if the content of src2 is outside the range from 0
+   to bit_length - 1, the operation is undefined. */
+#define SLJIT_ASHR			33
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+/* The following function is a helper function for sljit_emit_op_custom.
+   It returns with the real machine register index of any SLJIT_TEMPORARY
+   SLJIT_SAVED or SLJIT_LOCALS register.
+   Note: it returns with -1 for virtual registers (all EREGs on x86-32).
+   Note: register returned by SLJIT_LOCALS_REG is not necessary the real
+         stack pointer register of the target architecture. */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg);
+
+/* Any instruction can be inserted into the instruction stream by
+   sljit_emit_op_custom. It has a similar purpose as inline assembly.
+   The size parameter must match to the instruction size of the target
+   architecture:
+
+         x86: 0 < size <= 15. The instruction argument can be byte aligned.
+      Thumb2: if size == 2, the instruction argument must be 2 byte aligned.
+              if size == 4, the instruction argument must be 4 byte aligned.
+   Otherwise: size must be 4 and instruction argument must be 4 byte aligned. */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
+	void *instruction, int size);
+
+/* Returns with non-zero if fpu is available. */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void);
+
+/* Note: dst is the left and src is the right operand for SLJIT_FCMP.
+   Note: NaN check is always performed. If SLJIT_C_FLOAT_NAN is set,
+         the comparison result is unpredictable.
+   Flags: E | S (see SLJIT_C_FLOAT_*) */
+#define SLJIT_FCMP			34
+/* Flags: - (never set any flags) */
+#define SLJIT_FMOV			35
+/* Flags: - (never set any flags) */
+#define SLJIT_FNEG			36
+/* Flags: - (never set any flags) */
+#define SLJIT_FABS			37
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw);
+
+/* Flags: - (never set any flags) */
+#define SLJIT_FADD			38
+/* Flags: - (never set any flags) */
+#define SLJIT_FSUB			39
+/* Flags: - (never set any flags) */
+#define SLJIT_FMUL			40
+/* Flags: - (never set any flags) */
+#define SLJIT_FDIV			41
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+/* Label and jump instructions. */
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler);
+
+/* Invert conditional instruction: xor (^) with 0x1 */
+#define SLJIT_C_EQUAL			0
+#define SLJIT_C_ZERO			0
+#define SLJIT_C_NOT_EQUAL		1
+#define SLJIT_C_NOT_ZERO		1
+
+#define SLJIT_C_LESS			2
+#define SLJIT_C_GREATER_EQUAL		3
+#define SLJIT_C_GREATER			4
+#define SLJIT_C_LESS_EQUAL		5
+#define SLJIT_C_SIG_LESS		6
+#define SLJIT_C_SIG_GREATER_EQUAL	7
+#define SLJIT_C_SIG_GREATER		8
+#define SLJIT_C_SIG_LESS_EQUAL		9
+
+#define SLJIT_C_OVERFLOW		10
+#define SLJIT_C_NOT_OVERFLOW		11
+
+#define SLJIT_C_MUL_OVERFLOW		12
+#define SLJIT_C_MUL_NOT_OVERFLOW	13
+
+#define SLJIT_C_FLOAT_EQUAL		14
+#define SLJIT_C_FLOAT_NOT_EQUAL		15
+#define SLJIT_C_FLOAT_LESS		16
+#define SLJIT_C_FLOAT_GREATER_EQUAL	17
+#define SLJIT_C_FLOAT_GREATER		18
+#define SLJIT_C_FLOAT_LESS_EQUAL	19
+#define SLJIT_C_FLOAT_NAN		20
+#define SLJIT_C_FLOAT_NOT_NAN		21
+
+#define SLJIT_JUMP			22
+#define SLJIT_FAST_CALL			23
+#define SLJIT_CALL0			24
+#define SLJIT_CALL1			25
+#define SLJIT_CALL2			26
+#define SLJIT_CALL3			27
+
+/* Fast calling method. See sljit_emit_fast_enter / sljit_emit_fast_return. */
+
+/* The target can be changed during runtime (see: sljit_set_jump_addr). */
+#define SLJIT_REWRITABLE_JUMP		0x1000
+
+/* Emit a jump instruction. The destination is not set, only the type of the jump.
+    type must be between SLJIT_C_EQUAL and SLJIT_CALL3
+    type can be combined (or'ed) with SLJIT_REWRITABLE_JUMP
+   Flags: - (never set any flags) for both conditional and unconditional jumps.
+   Flags: destroy all flags for calls. */
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type);
+
+/* Basic arithmetic comparison. In most architectures it is implemented as
+   an SLJIT_SUB operation (with SLJIT_UNUSED destination and setting
+   appropriate flags) followed by a sljit_emit_jump. However some
+   architectures (i.e: MIPS) may employ special optimizations here. It is
+   suggested to use this comparison form when appropriate.
+    type must be between SLJIT_C_EQUAL and SLJIT_C_SIG_LESS_EQUAL
+    type can be combined (or'ed) with SLJIT_REWRITABLE_JUMP or SLJIT_INT_OP
+   Flags: destroy flags. */
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+/* Basic floating point comparison. In most architectures it is implemented as
+   an SLJIT_FCMP operation (setting appropriate flags) followed by a
+   sljit_emit_jump. However some architectures (i.e: MIPS) may employ
+   special optimizations here. It is suggested to use this comparison form
+   when appropriate.
+    type must be between SLJIT_C_FLOAT_EQUAL and SLJIT_C_FLOAT_NOT_NAN
+    type can be combined (or'ed) with SLJIT_REWRITABLE_JUMP
+   Flags: destroy flags.
+   Note: if either operand is NaN, the behaviour is undefined for
+         type <= SLJIT_C_FLOAT_LESS_EQUAL. */
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+/* Set the destination of the jump to this label. */
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_label(struct sljit_jump *jump, struct sljit_label* label);
+/* Only for jumps defined with SLJIT_REWRITABLE_JUMP flag.
+   Note: use sljit_emit_ijump for fixed jumps. */
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_target(struct sljit_jump *jump, sljit_uw target);
+
+/* Call function or jump anywhere. Both direct and indirect form
+    type must be between SLJIT_JUMP and SLJIT_CALL3
+    Direct form: set src to SLJIT_IMM() and srcw to the address
+    Indirect form: any other valid addressing mode
+   Flags: - (never set any flags) for unconditional jumps.
+   Flags: destroy all flags for calls. */
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw);
+
+/* If op == SLJIT_MOV:
+     Set dst to 1 if condition is fulfilled, 0 otherwise
+       type must be between SLJIT_C_EQUAL and SLJIT_C_FLOAT_NOT_NAN
+     Flags: - (never set any flags)
+   If op == SLJIT_OR
+     Dst is used as src as well, and set its lowest bit to 1 if
+     the condition is fulfilled. Otherwise it does nothing.
+     Flags: E | K
+   Note: sljit_emit_cond_value does nothing, if dst is SLJIT_UNUSED (regardless of op). */
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type);
+
+/* Copies the base address of SLJIT_MEM1(SLJIT_LOCALS_REG)+offset to dst.
+   Flags: - (never set any flags) */
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_local_base(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w offset);
+
+/* The constant can be changed runtime (see: sljit_set_const)
+   Flags: - (never set any flags) */
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value);
+
+/* After the code generation the address for label, jump and const instructions
+   are computed. Since these structures are freed sljit_free_compiler, the
+   addresses must be preserved by the user program elsewere. */
+static SLJIT_INLINE sljit_uw sljit_get_label_addr(struct sljit_label *label) { return label->addr; }
+static SLJIT_INLINE sljit_uw sljit_get_jump_addr(struct sljit_jump *jump) { return jump->addr; }
+static SLJIT_INLINE sljit_uw sljit_get_const_addr(struct sljit_const *const_) { return const_->addr; }
+
+/* Only the address is required to rewrite the code. */
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr);
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant);
+
+/* --------------------------------------------------------------------- */
+/*  Miscellaneous utility functions                                      */
+/* --------------------------------------------------------------------- */
+
+#define SLJIT_MAJOR_VERSION	0
+#define SLJIT_MINOR_VERSION	88
+
+/* Get the human readable name of the platfrom.
+   Can be useful for debugging on platforms like ARM, where ARM and
+   Thumb2 functions can be mixed. */
+SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name(void);
+
+/* Portble helper function to get an offset of a member. */
+#define SLJIT_OFFSETOF(base, member) ((sljit_w)(&((base*)0x10)->member) - 0x10)
+
+#if (defined SLJIT_UTIL_GLOBAL_LOCK && SLJIT_UTIL_GLOBAL_LOCK)
+/* This global lock is useful to compile common functions. */
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_grab_lock(void);
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_release_lock(void);
+#endif
+
+#if (defined SLJIT_UTIL_STACK && SLJIT_UTIL_STACK)
+
+/* The sljit_stack is a utiliy feature of sljit, which allocates a
+   writable memory region between base (inclusive) and limit (exclusive).
+   Both base and limit is a pointer, and base is always <= than limit.
+   This feature uses the "address space reserve" feature
+   of modern operating systems. Basically we don't need to allocate a
+   huge memory block in one step for the worst case, we can start with
+   a smaller chunk and extend it later. Since the address space is
+   reserved, the data never copied to other regions, thus it is safe
+   to store pointers here. */
+
+/* Note: The base field is aligned to PAGE_SIZE bytes (usually 4k or more).
+   Note: stack growing should not happen in small steps: 4k, 16k or even
+     bigger growth is better.
+   Note: this structure may not be supported by all operating systems.
+     Some kind of fallback mechanism is suggested when SLJIT_UTIL_STACK
+     is not defined. */
+
+struct sljit_stack {
+	/* User data, anything can be stored here.
+	   Starting with the same value as base. */
+	sljit_uw top;
+	/* These members are read only. */
+	sljit_uw base;
+	sljit_uw limit;
+	sljit_uw max_limit;
+};
+
+/* Returns NULL if unsuccessful.
+   Note: limit and max_limit contains the size for stack allocation
+   Note: the top field is initialized to base. */
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_stack* SLJIT_CALL sljit_allocate_stack(sljit_uw limit, sljit_uw max_limit);
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_free_stack(struct sljit_stack* stack);
+
+/* Can be used to increase (allocate) or decrease (free) the memory area.
+   Returns with a non-zero value if unsuccessful. If new_limit is greater than
+   max_limit, it will fail. It is very easy to implement a stack data structure,
+   since the growth ratio can be added to the current limit, and sljit_stack_resize
+   will do all the necessary checks. The fields of the stack are not changed if
+   sljit_stack_resize fails. */
+SLJIT_API_FUNC_ATTRIBUTE sljit_w SLJIT_CALL sljit_stack_resize(struct sljit_stack* stack, sljit_uw new_limit);
+
+#endif /* (defined SLJIT_UTIL_STACK && SLJIT_UTIL_STACK) */
+
+#if !(defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
+
+/* Get the entry address of a given function. */
+#define SLJIT_FUNC_OFFSET(func_name)	((sljit_w)func_name)
+
+#else /* !(defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL) */
+
+/* All JIT related code should be placed in the same context (library, binary, etc.). */
+
+#define SLJIT_FUNC_OFFSET(func_name)	((sljit_w)*(void**)func_name)
+
+/* For powerpc64, the function pointers point to a context descriptor. */
+struct sljit_function_context {
+	sljit_w addr;
+	sljit_w r2;
+	sljit_w r11;
+};
+
+/* Fill the context arguments using the addr and the function.
+   If func_ptr is NULL, it will not be set to the address of context
+   If addr is NULL, the function address also comes from the func pointer. */
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_function_context(void** func_ptr, struct sljit_function_context* context, sljit_w addr, void* func);
+
+#endif /* !(defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL) */
+
+#endif /* _SLJIT_LIR_H_ */
diff --git a/8.31/sljit/sljitNativeARM_Thumb2.c b/8.31/sljit/sljitNativeARM_Thumb2.c
new file mode 100644
index 0000000..465c30d
--- /dev/null
+++ b/8.31/sljit/sljitNativeARM_Thumb2.c
@@ -0,0 +1,1939 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
+{
+	return "ARM-Thumb2" SLJIT_CPUINFO;
+}
+
+/* Last register + 1. */
+#define TMP_REG1	(SLJIT_NO_REGISTERS + 1)
+#define TMP_REG2	(SLJIT_NO_REGISTERS + 2)
+#define TMP_REG3	(SLJIT_NO_REGISTERS + 3)
+#define TMP_PC		(SLJIT_NO_REGISTERS + 4)
+
+#define TMP_FREG1	(SLJIT_FLOAT_REG4 + 1)
+#define TMP_FREG2	(SLJIT_FLOAT_REG4 + 2)
+
+/* See sljit_emit_enter and sljit_emit_op0 if you want to change them. */
+static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 5] = {
+  0, 0, 1, 2, 12, 5, 6, 7, 8, 10, 11, 13, 3, 4, 14, 15
+};
+
+#define COPY_BITS(src, from, to, bits) \
+	((from >= to ? (src >> (from - to)) : (src << (to - from))) & (((1 << bits) - 1) << to))
+
+/* Thumb16 encodings. */
+#define RD3(rd) (reg_map[rd])
+#define RN3(rn) (reg_map[rn] << 3)
+#define RM3(rm) (reg_map[rm] << 6)
+#define RDN3(rdn) (reg_map[rdn] << 8)
+#define IMM3(imm) (imm << 6)
+#define IMM8(imm) (imm)
+
+/* Thumb16 helpers. */
+#define SET_REGS44(rd, rn) \
+	((reg_map[rn] << 3) | (reg_map[rd] & 0x7) | ((reg_map[rd] & 0x8) << 4))
+#define IS_2_LO_REGS(reg1, reg2) \
+	(reg_map[reg1] <= 7 && reg_map[reg2] <= 7)
+#define IS_3_LO_REGS(reg1, reg2, reg3) \
+	(reg_map[reg1] <= 7 && reg_map[reg2] <= 7 && reg_map[reg3] <= 7)
+
+/* Thumb32 encodings. */
+#define RD4(rd) (reg_map[rd] << 8)
+#define RN4(rn) (reg_map[rn] << 16)
+#define RM4(rm) (reg_map[rm])
+#define RT4(rt) (reg_map[rt] << 12)
+#define DD4(dd) ((dd) << 12)
+#define DN4(dn) ((dn) << 16)
+#define DM4(dm) (dm)
+#define IMM5(imm) \
+	(COPY_BITS(imm, 2, 12, 3) | ((imm & 0x3) << 6))
+#define IMM12(imm) \
+	(COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff))
+
+typedef sljit_ui sljit_ins;
+
+/* --------------------------------------------------------------------- */
+/*  Instrucion forms                                                     */
+/* --------------------------------------------------------------------- */
+
+/* dot '.' changed to _
+   I immediate form (possibly followed by number of immediate bits). */
+#define ADCI		0xf1400000
+#define ADCS		0x4140
+#define ADC_W		0xeb400000
+#define ADD		0x4400
+#define ADDS		0x1800
+#define ADDSI3		0x1c00
+#define ADDSI8		0x3000
+#define ADD_W		0xeb000000
+#define ADDWI		0xf2000000
+#define ADD_SP		0xb000
+#define ADD_W		0xeb000000
+#define ADD_WI		0xf1000000
+#define ANDI		0xf0000000
+#define ANDS		0x4000
+#define AND_W		0xea000000
+#define ASRS		0x4100
+#define ASRSI		0x1000
+#define ASR_W		0xfa40f000
+#define ASR_WI		0xea4f0020
+#define BICI		0xf0200000
+#define BKPT		0xbe00
+#define BLX		0x4780
+#define BX		0x4700
+#define CLZ		0xfab0f080
+#define CMPI		0x2800
+#define CMP_W		0xebb00f00
+#define EORI		0xf0800000
+#define EORS		0x4040
+#define EOR_W		0xea800000
+#define IT		0xbf00
+#define LSLS		0x4080
+#define LSLSI		0x0000
+#define LSL_W		0xfa00f000
+#define LSL_WI		0xea4f0000
+#define LSRS		0x40c0
+#define LSRSI		0x0800
+#define LSR_W		0xfa20f000
+#define LSR_WI		0xea4f0010
+#define MOV		0x4600
+#define MOVS		0x0000
+#define MOVSI		0x2000
+#define MOVT		0xf2c00000
+#define MOVW		0xf2400000
+#define MOV_W		0xea4f0000
+#define MOV_WI		0xf04f0000
+#define MUL		0xfb00f000
+#define MVNS		0x43c0
+#define MVN_W		0xea6f0000
+#define MVN_WI		0xf06f0000
+#define NOP		0xbf00
+#define ORNI		0xf0600000
+#define ORRI		0xf0400000
+#define ORRS		0x4300
+#define ORR_W		0xea400000
+#define POP		0xbd00
+#define POP_W		0xe8bd0000
+#define PUSH		0xb500
+#define PUSH_W		0xe92d0000
+#define RSB_WI		0xf1c00000
+#define RSBSI		0x4240
+#define SBCI		0xf1600000
+#define SBCS		0x4180
+#define SBC_W		0xeb600000
+#define SMULL		0xfb800000
+#define STR_SP		0x9000
+#define SUBS		0x1a00
+#define SUBSI3		0x1e00
+#define SUBSI8		0x3800
+#define SUB_W		0xeba00000
+#define SUBWI		0xf2a00000
+#define SUB_SP		0xb080
+#define SUB_WI		0xf1a00000
+#define SXTB		0xb240
+#define SXTB_W		0xfa4ff080
+#define SXTH		0xb200
+#define SXTH_W		0xfa0ff080
+#define TST		0x4200
+#define UMULL		0xfba00000
+#define UXTB		0xb2c0
+#define UXTB_W		0xfa5ff080
+#define UXTH		0xb280
+#define UXTH_W		0xfa1ff080
+#define VABS_F64	0xeeb00bc0
+#define VADD_F64	0xee300b00
+#define VCMP_F64	0xeeb40b40
+#define VDIV_F64	0xee800b00
+#define VMOV_F64	0xeeb00b40
+#define VMRS		0xeef1fa10
+#define VMUL_F64	0xee200b00
+#define VNEG_F64	0xeeb10b40
+#define VSTR		0xed000b00
+#define VSUB_F64	0xee300b40
+
+static int push_inst16(struct sljit_compiler *compiler, sljit_ins inst)
+{
+	sljit_uh *ptr;
+	SLJIT_ASSERT(!(inst & 0xffff0000));
+
+	ptr = (sljit_uh*)ensure_buf(compiler, sizeof(sljit_uh));
+	FAIL_IF(!ptr);
+	*ptr = inst;
+	compiler->size++;
+	return SLJIT_SUCCESS;
+}
+
+static int push_inst32(struct sljit_compiler *compiler, sljit_ins inst)
+{
+	sljit_uh *ptr = (sljit_uh*)ensure_buf(compiler, sizeof(sljit_ins));
+	FAIL_IF(!ptr);
+	*ptr++ = inst >> 16;
+	*ptr = inst;
+	compiler->size += 2;
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int emit_imm32_const(struct sljit_compiler *compiler, int dst, sljit_uw imm)
+{
+	FAIL_IF(push_inst32(compiler, MOVW | RD4(dst) |
+		COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
+	return push_inst32(compiler, MOVT | RD4(dst) |
+		COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
+}
+
+static SLJIT_INLINE void modify_imm32_const(sljit_uh* inst, sljit_uw new_imm)
+{
+	int dst = inst[1] & 0x0f00;
+	SLJIT_ASSERT(((inst[0] & 0xfbf0) == (MOVW >> 16)) && ((inst[2] & 0xfbf0) == (MOVT >> 16)) && dst == (inst[3] & 0x0f00));
+	inst[0] = (MOVW >> 16) | COPY_BITS(new_imm, 12, 0, 4) | COPY_BITS(new_imm, 11, 10, 1);
+	inst[1] = dst | COPY_BITS(new_imm, 8, 12, 3) | (new_imm & 0xff);
+	inst[2] = (MOVT >> 16) | COPY_BITS(new_imm, 12 + 16, 0, 4) | COPY_BITS(new_imm, 11 + 16, 10, 1);
+	inst[3] = dst | COPY_BITS(new_imm, 8 + 16, 12, 3) | ((new_imm & 0xff0000) >> 16);
+}
+
+static SLJIT_INLINE int detect_jump_type(struct sljit_jump *jump, sljit_uh *code_ptr, sljit_uh *code)
+{
+	sljit_w diff;
+
+	if (jump->flags & SLJIT_REWRITABLE_JUMP)
+		return 0;
+
+	if (jump->flags & JUMP_ADDR) {
+		/* Branch to ARM code is not optimized yet. */
+		if (!(jump->u.target & 0x1))
+			return 0;
+		diff = ((sljit_w)jump->u.target - (sljit_w)(code_ptr + 2)) >> 1;
+	}
+	else {
+		SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+		diff = ((sljit_w)(code + jump->u.label->size) - (sljit_w)(code_ptr + 2)) >> 1;
+	}
+
+	if (jump->flags & IS_CONDITIONAL) {
+		SLJIT_ASSERT(!(jump->flags & IS_BL));
+		if (diff <= 127 && diff >= -128) {
+			jump->flags |= B_TYPE1;
+			return 5;
+		}
+		if (diff <= 524287 && diff >= -524288) {
+			jump->flags |= B_TYPE2;
+			return 4;
+		}
+		/* +1 comes from the prefix IT instruction. */
+		diff--;
+		if (diff <= 8388607 && diff >= -8388608) {
+			jump->flags |= B_TYPE3;
+			return 3;
+		}
+	}
+	else if (jump->flags & IS_BL) {
+		if (diff <= 8388607 && diff >= -8388608) {
+			jump->flags |= BL_TYPE6;
+			return 3;
+		}
+	}
+	else {
+		if (diff <= 1023 && diff >= -1024) {
+			jump->flags |= B_TYPE4;
+			return 4;
+		}
+		if (diff <= 8388607 && diff >= -8388608) {
+			jump->flags |= B_TYPE5;
+			return 3;
+		}
+	}
+
+	return 0;
+}
+
+static SLJIT_INLINE void inline_set_jump_addr(sljit_uw addr, sljit_uw new_addr, int flush)
+{
+	sljit_uh* inst = (sljit_uh*)addr;
+	modify_imm32_const(inst, new_addr);
+	if (flush) {
+		SLJIT_CACHE_FLUSH(inst, inst + 3);
+	}
+}
+
+static SLJIT_INLINE void set_jump_instruction(struct sljit_jump *jump)
+{
+	int type = (jump->flags >> 4) & 0xf;
+	sljit_w diff;
+	sljit_uh *jump_inst;
+	int s, j1, j2;
+
+	if (SLJIT_UNLIKELY(type == 0)) {
+		inline_set_jump_addr(jump->addr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
+		return;
+	}
+
+	if (jump->flags & JUMP_ADDR) {
+		SLJIT_ASSERT(jump->u.target & 0x1);
+		diff = ((sljit_w)jump->u.target - (sljit_w)(jump->addr + 4)) >> 1;
+	}
+	else
+		diff = ((sljit_w)(jump->u.label->addr) - (sljit_w)(jump->addr + 4)) >> 1;
+	jump_inst = (sljit_uh*)jump->addr;
+
+	switch (type) {
+	case 1:
+		/* Encoding T1 of 'B' instruction */
+		SLJIT_ASSERT(diff <= 127 && diff >= -128 && (jump->flags & IS_CONDITIONAL));
+		jump_inst[0] = 0xd000 | (jump->flags & 0xf00) | (diff & 0xff);
+		return;
+	case 2:
+		/* Encoding T3 of 'B' instruction */
+		SLJIT_ASSERT(diff <= 524287 && diff >= -524288 && (jump->flags & IS_CONDITIONAL));
+		jump_inst[0] = 0xf000 | COPY_BITS(jump->flags, 8, 6, 4) | COPY_BITS(diff, 11, 0, 6) | COPY_BITS(diff, 19, 10, 1);
+		jump_inst[1] = 0x8000 | COPY_BITS(diff, 17, 13, 1) | COPY_BITS(diff, 18, 11, 1) | (diff & 0x7ff);
+		return;
+	case 3:
+		SLJIT_ASSERT(jump->flags & IS_CONDITIONAL);
+		*jump_inst++ = IT | ((jump->flags >> 4) & 0xf0) | 0x8;
+		diff--;
+		type = 5;
+		break;
+	case 4:
+		/* Encoding T2 of 'B' instruction */
+		SLJIT_ASSERT(diff <= 1023 && diff >= -1024 && !(jump->flags & IS_CONDITIONAL));
+		jump_inst[0] = 0xe000 | (diff & 0x7ff);
+		return;
+	}
+
+	SLJIT_ASSERT(diff <= 8388607 && diff >= -8388608);
+
+	/* Really complex instruction form for branches. */
+	s = (diff >> 23) & 0x1;
+	j1 = (~(diff >> 21) ^ s) & 0x1;
+	j2 = (~(diff >> 22) ^ s) & 0x1;
+	jump_inst[0] = 0xf000 | (s << 10) | COPY_BITS(diff, 11, 0, 10);
+	jump_inst[1] = (j1 << 13) | (j2 << 11) | (diff & 0x7ff);
+
+	/* The others have a common form. */
+	if (type == 5) /* Encoding T4 of 'B' instruction */
+		jump_inst[1] |= 0x9000;
+	else if (type == 6) /* Encoding T1 of 'BL' instruction */
+		jump_inst[1] |= 0xd000;
+	else
+		SLJIT_ASSERT_STOP();
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+	struct sljit_memory_fragment *buf;
+	sljit_uh *code;
+	sljit_uh *code_ptr;
+	sljit_uh *buf_ptr;
+	sljit_uh *buf_end;
+	sljit_uw half_count;
+
+	struct sljit_label *label;
+	struct sljit_jump *jump;
+	struct sljit_const *const_;
+
+	CHECK_ERROR_PTR();
+	check_sljit_generate_code(compiler);
+	reverse_buf(compiler);
+
+	code = (sljit_uh*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_uh));
+	PTR_FAIL_WITH_EXEC_IF(code);
+	buf = compiler->buf;
+
+	code_ptr = code;
+	half_count = 0;
+	label = compiler->labels;
+	jump = compiler->jumps;
+	const_ = compiler->consts;
+
+	do {
+		buf_ptr = (sljit_uh*)buf->memory;
+		buf_end = buf_ptr + (buf->used_size >> 1);
+		do {
+			*code_ptr = *buf_ptr++;
+			/* These structures are ordered by their address. */
+			SLJIT_ASSERT(!label || label->size >= half_count);
+			SLJIT_ASSERT(!jump || jump->addr >= half_count);
+			SLJIT_ASSERT(!const_ || const_->addr >= half_count);
+			if (label && label->size == half_count) {
+				label->addr = ((sljit_uw)code_ptr) | 0x1;
+				label->size = code_ptr - code;
+				label = label->next;
+			}
+			if (jump && jump->addr == half_count) {
+					jump->addr = (sljit_uw)code_ptr - ((jump->flags & IS_CONDITIONAL) ? 10 : 8);
+					code_ptr -= detect_jump_type(jump, code_ptr, code);
+					jump = jump->next;
+			}
+			if (const_ && const_->addr == half_count) {
+				const_->addr = (sljit_uw)code_ptr;
+				const_ = const_->next;
+			}
+			code_ptr ++;
+			half_count ++;
+		} while (buf_ptr < buf_end);
+
+		buf = buf->next;
+	} while (buf);
+
+	if (label && label->size == half_count) {
+		label->addr = ((sljit_uw)code_ptr) | 0x1;
+		label->size = code_ptr - code;
+		label = label->next;
+	}
+
+	SLJIT_ASSERT(!label);
+	SLJIT_ASSERT(!jump);
+	SLJIT_ASSERT(!const_);
+	SLJIT_ASSERT(code_ptr - code <= (int)compiler->size);
+
+	jump = compiler->jumps;
+	while (jump) {
+		set_jump_instruction(jump);
+		jump = jump->next;
+	}
+
+	SLJIT_CACHE_FLUSH(code, code_ptr);
+	compiler->error = SLJIT_ERR_COMPILED;
+	compiler->executable_size = compiler->size * sizeof(sljit_uh);
+	/* Set thumb mode flag. */
+	return (void*)((sljit_uw)code | 0x1);
+}
+
+#define INVALID_IMM	0x80000000
+static sljit_uw get_imm(sljit_uw imm)
+{
+	/* Thumb immediate form. */
+	int counter;
+
+	if (imm <= 0xff)
+		return imm;
+
+	if ((imm & 0xffff) == (imm >> 16)) {
+		/* Some special cases. */
+		if (!(imm & 0xff00))
+			return (1 << 12) | (imm & 0xff);
+		if (!(imm & 0xff))
+			return (2 << 12) | ((imm >> 8) & 0xff);
+		if ((imm & 0xff00) == ((imm & 0xff) << 8))
+			return (3 << 12) | (imm & 0xff);
+	}
+
+	/* Assembly optimization: count leading zeroes? */
+	counter = 8;
+	if (!(imm & 0xffff0000)) {
+		counter += 16;
+		imm <<= 16;
+	}
+	if (!(imm & 0xff000000)) {
+		counter += 8;
+		imm <<= 8;
+	}
+	if (!(imm & 0xf0000000)) {
+		counter += 4;
+		imm <<= 4;
+	}
+	if (!(imm & 0xc0000000)) {
+		counter += 2;
+		imm <<= 2;
+	}
+	if (!(imm & 0x80000000)) {
+		counter += 1;
+		imm <<= 1;
+	}
+	/* Since imm >= 128, this must be true. */
+	SLJIT_ASSERT(counter <= 31);
+
+	if (imm & 0x00ffffff)
+		return INVALID_IMM; /* Cannot be encoded. */
+
+	return ((imm >> 24) & 0x7f) | COPY_BITS(counter, 4, 26, 1) | COPY_BITS(counter, 1, 12, 3) | COPY_BITS(counter, 0, 7, 1);
+}
+
+static int load_immediate(struct sljit_compiler *compiler, int dst, sljit_uw imm)
+{
+	sljit_uw tmp;
+
+	if (imm >= 0x10000) {
+		tmp = get_imm(imm);
+		if (tmp != INVALID_IMM)
+			return push_inst32(compiler, MOV_WI | RD4(dst) | tmp);
+		tmp = get_imm(~imm);
+		if (tmp != INVALID_IMM)
+			return push_inst32(compiler, MVN_WI | RD4(dst) | tmp);
+	}
+
+	/* set low 16 bits, set hi 16 bits to 0. */
+	FAIL_IF(push_inst32(compiler, MOVW | RD4(dst) |
+		COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
+
+	/* set hi 16 bit if needed. */
+	if (imm >= 0x10000)
+		return push_inst32(compiler, MOVT | RD4(dst) |
+			COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
+	return SLJIT_SUCCESS;
+}
+
+#define ARG1_IMM	0x0010000
+#define ARG2_IMM	0x0020000
+#define KEEP_FLAGS	0x0040000
+#define SET_MULOV	0x0080000
+/* SET_FLAGS must be 0x100000 as it is also the value of S bit (can be used for optimization). */
+#define SET_FLAGS	0x0100000
+#define UNUSED_RETURN	0x0200000
+#define SLOW_DEST	0x0400000
+#define SLOW_SRC1	0x0800000
+#define SLOW_SRC2	0x1000000
+
+static int emit_op_imm(struct sljit_compiler *compiler, int flags, int dst, sljit_uw arg1, sljit_uw arg2)
+{
+	/* dst must be register, TMP_REG1
+	   arg1 must be register, TMP_REG1, imm
+	   arg2 must be register, TMP_REG2, imm */
+	int reg;
+	sljit_uw imm, negated_imm;
+
+	if (SLJIT_UNLIKELY((flags & (ARG1_IMM | ARG2_IMM)) == (ARG1_IMM | ARG2_IMM))) {
+		/* Both are immediates. */
+		flags &= ~ARG1_IMM;
+		FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
+		arg1 = TMP_REG1;
+	}
+
+	if (flags & (ARG1_IMM | ARG2_IMM)) {
+		reg = (flags & ARG2_IMM) ? arg1 : arg2;
+		imm = (flags & ARG2_IMM) ? arg2 : arg1;
+
+		switch (flags & 0xffff) {
+		case SLJIT_MOV:
+			SLJIT_ASSERT(!(flags & SET_FLAGS) && (flags & ARG2_IMM) && arg1 == TMP_REG1);
+			return load_immediate(compiler, dst, imm);
+		case SLJIT_NOT:
+			if (!(flags & SET_FLAGS))
+				return load_immediate(compiler, dst, ~imm);
+			/* Since the flags should be set, we just fallback to the register mode.
+			   Although I could do some clever things here, "NOT IMM" does not worth the efforts. */
+			break;
+		case SLJIT_CLZ:
+			/* No form with immediate operand. */
+			break;
+		case SLJIT_ADD:
+			negated_imm = (sljit_uw)-(sljit_w)imm;
+			if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(reg, dst)) {
+				if (imm <= 0x7)
+					return push_inst16(compiler, ADDSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
+				if (negated_imm <= 0x7)
+					return push_inst16(compiler, SUBSI3 | IMM3(negated_imm) | RD3(dst) | RN3(reg));
+				if (reg == dst) {
+					if (imm <= 0xff)
+						return push_inst16(compiler, ADDSI8 | IMM8(imm) | RDN3(dst));
+					if (negated_imm <= 0xff)
+						return push_inst16(compiler, SUBSI8 | IMM8(negated_imm) | RDN3(dst));
+				}
+			}
+			if (!(flags & SET_FLAGS)) {
+				if (imm <= 0xfff)
+					return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(imm));
+				if (negated_imm <= 0xfff)
+					return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(negated_imm));
+			}
+			imm = get_imm(imm);
+			if (imm != INVALID_IMM)
+				return push_inst32(compiler, ADD_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			break;
+		case SLJIT_ADDC:
+			imm = get_imm(imm);
+			if (imm != INVALID_IMM)
+				return push_inst32(compiler, ADCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			break;
+		case SLJIT_SUB:
+			if (flags & ARG2_IMM) {
+				negated_imm = (sljit_uw)-(sljit_w)imm;
+				if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(reg, dst)) {
+					if (imm <= 0x7)
+						return push_inst16(compiler, SUBSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
+					if (negated_imm <= 0x7)
+						return push_inst16(compiler, ADDSI3 | IMM3(negated_imm) | RD3(dst) | RN3(reg));
+					if (reg == dst) {
+						if (imm <= 0xff)
+							return push_inst16(compiler, SUBSI8 | IMM8(imm) | RDN3(dst));
+						if (negated_imm <= 0xff)
+							return push_inst16(compiler, ADDSI8 | IMM8(negated_imm) | RDN3(dst));
+					}
+					if (imm <= 0xff && (flags & UNUSED_RETURN))
+						return push_inst16(compiler, CMPI | IMM8(imm) | RDN3(reg));
+				}
+				if (!(flags & SET_FLAGS)) {
+					if (imm <= 0xfff)
+						return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(imm));
+					if (negated_imm <= 0xfff)
+						return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(negated_imm));
+				}
+				imm = get_imm(imm);
+				if (imm != INVALID_IMM)
+					return push_inst32(compiler, SUB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			}
+			else {
+				if (!(flags & KEEP_FLAGS) && imm == 0 && IS_2_LO_REGS(reg, dst))
+					return push_inst16(compiler, RSBSI | RD3(dst) | RN3(reg));
+				imm = get_imm(imm);
+				if (imm != INVALID_IMM)
+					return push_inst32(compiler, RSB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			}
+			break;
+		case SLJIT_SUBC:
+			if (flags & ARG2_IMM) {
+				imm = get_imm(imm);
+				if (imm != INVALID_IMM)
+					return push_inst32(compiler, SBCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			}
+			break;
+		case SLJIT_MUL:
+			/* No form with immediate operand. */
+			break;
+		case SLJIT_AND:
+			imm = get_imm(imm);
+			if (imm != INVALID_IMM)
+				return push_inst32(compiler, ANDI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			imm = get_imm(~((flags & ARG2_IMM) ? arg2 : arg1));
+			if (imm != INVALID_IMM)
+				return push_inst32(compiler, BICI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			break;
+		case SLJIT_OR:
+			imm = get_imm(imm);
+			if (imm != INVALID_IMM)
+				return push_inst32(compiler, ORRI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			imm = get_imm(~((flags & ARG2_IMM) ? arg2 : arg1));
+			if (imm != INVALID_IMM)
+				return push_inst32(compiler, ORNI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			break;
+		case SLJIT_XOR:
+			imm = get_imm(imm);
+			if (imm != INVALID_IMM)
+				return push_inst32(compiler, EORI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
+			break;
+		case SLJIT_SHL:
+			if (flags & ARG2_IMM) {
+				imm &= 0x1f;
+				if (imm == 0) {
+					if (!(flags & SET_FLAGS))
+						return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
+					if (IS_2_LO_REGS(dst, reg))
+						return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
+					return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
+				}
+				if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, reg))
+					return push_inst16(compiler, LSLSI | RD3(dst) | RN3(reg) | (imm << 6));
+				return push_inst32(compiler, LSL_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
+			}
+			break;
+		case SLJIT_LSHR:
+			if (flags & ARG2_IMM) {
+				imm &= 0x1f;
+				if (imm == 0) {
+					if (!(flags & SET_FLAGS))
+						return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
+					if (IS_2_LO_REGS(dst, reg))
+						return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
+					return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
+				}
+				if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, reg))
+					return push_inst16(compiler, LSRSI | RD3(dst) | RN3(reg) | (imm << 6));
+				return push_inst32(compiler, LSR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
+			}
+			break;
+		case SLJIT_ASHR:
+			if (flags & ARG2_IMM) {
+				imm &= 0x1f;
+				if (imm == 0) {
+					if (!(flags & SET_FLAGS))
+						return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
+					if (IS_2_LO_REGS(dst, reg))
+						return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
+					return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
+				}
+				if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, reg))
+					return push_inst16(compiler, ASRSI | RD3(dst) | RN3(reg) | (imm << 6));
+				return push_inst32(compiler, ASR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
+			}
+			break;
+		default:
+			SLJIT_ASSERT_STOP();
+			break;
+		}
+
+		if (flags & ARG2_IMM) {
+			FAIL_IF(load_immediate(compiler, TMP_REG2, arg2));
+			arg2 = TMP_REG2;
+		}
+		else {
+			FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
+			arg1 = TMP_REG1;
+		}
+	}
+
+	/* Both arguments are registers. */
+	switch (flags & 0xffff) {
+	case SLJIT_MOV:
+	case SLJIT_MOV_UI:
+	case SLJIT_MOV_SI:
+	case SLJIT_MOVU:
+	case SLJIT_MOVU_UI:
+	case SLJIT_MOVU_SI:
+		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+		return push_inst16(compiler, MOV | SET_REGS44(dst, arg2));
+	case SLJIT_MOV_UB:
+	case SLJIT_MOVU_UB:
+		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+		if (IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, UXTB | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, UXTB_W | RD4(dst) | RM4(arg2));
+	case SLJIT_MOV_SB:
+	case SLJIT_MOVU_SB:
+		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+		if (IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, SXTB | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, SXTB_W | RD4(dst) | RM4(arg2));
+	case SLJIT_MOV_UH:
+	case SLJIT_MOVU_UH:
+		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+		if (IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, UXTH | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, UXTH_W | RD4(dst) | RM4(arg2));
+	case SLJIT_MOV_SH:
+	case SLJIT_MOVU_SH:
+		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
+		if (IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, SXTH | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, SXTH_W | RD4(dst) | RM4(arg2));
+	case SLJIT_NOT:
+		SLJIT_ASSERT(arg1 == TMP_REG1);
+		if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, MVNS | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, MVN_W | (flags & SET_FLAGS) | RD4(dst) | RM4(arg2));
+	case SLJIT_CLZ:
+		SLJIT_ASSERT(arg1 == TMP_REG1);
+		FAIL_IF(push_inst32(compiler, CLZ | RN4(arg2) | RD4(dst) | RM4(arg2)));
+		if (flags & SET_FLAGS) {
+			if (reg_map[dst] <= 7)
+				return push_inst16(compiler, CMPI | RDN3(dst));
+			return push_inst32(compiler, ADD_WI | SET_FLAGS | RN4(dst) | RD4(dst));
+		}
+		return SLJIT_SUCCESS;
+	case SLJIT_ADD:
+		if (!(flags & KEEP_FLAGS) && IS_3_LO_REGS(dst, arg1, arg2))
+			return push_inst16(compiler, ADDS | RD3(dst) | RN3(arg1) | RM3(arg2));
+		if (dst == arg1 && !(flags & SET_FLAGS))
+			return push_inst16(compiler, ADD | SET_REGS44(dst, arg2));
+		return push_inst32(compiler, ADD_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_ADDC:
+		if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, ADCS | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, ADC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_SUB:
+		if (!(flags & KEEP_FLAGS) && IS_3_LO_REGS(dst, arg1, arg2))
+			return push_inst16(compiler, SUBS | RD3(dst) | RN3(arg1) | RM3(arg2));
+		return push_inst32(compiler, SUB_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_SUBC:
+		if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, SBCS | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, SBC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_MUL:
+		if (!(flags & SET_FLAGS))
+			return push_inst32(compiler, MUL | RD4(dst) | RN4(arg1) | RM4(arg2));
+		SLJIT_ASSERT(reg_map[TMP_REG2] <= 7 && dst != TMP_REG2);
+		FAIL_IF(push_inst32(compiler, SMULL | RT4(dst) | RD4(TMP_REG2) | RN4(arg1) | RM4(arg2)));
+		/* cmp TMP_REG2, dst asr #31. */
+		return push_inst32(compiler, CMP_W | RN4(TMP_REG2) | 0x70e0 | RM4(dst));
+	case SLJIT_AND:
+		if (!(flags & KEEP_FLAGS)) {
+			if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
+				return push_inst16(compiler, ANDS | RD3(dst) | RN3(arg2));
+			if ((flags & UNUSED_RETURN) && IS_2_LO_REGS(arg1, arg2))
+				return push_inst16(compiler, TST | RD3(arg1) | RN3(arg2));
+		}
+		return push_inst32(compiler, AND_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_OR:
+		if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, ORRS | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, ORR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_XOR:
+		if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, EORS | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, EOR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_SHL:
+		if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, LSLS | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, LSL_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_LSHR:
+		if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, LSRS | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, LSR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	case SLJIT_ASHR:
+		if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
+			return push_inst16(compiler, ASRS | RD3(dst) | RN3(arg2));
+		return push_inst32(compiler, ASR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
+	}
+
+	SLJIT_ASSERT_STOP();
+	return SLJIT_SUCCESS;
+}
+
+#define STORE		0x01
+#define SIGNED		0x02
+
+#define WORD_SIZE	0x00
+#define BYTE_SIZE	0x04
+#define HALF_SIZE	0x08
+
+#define UPDATE		0x10
+#define ARG_TEST	0x20
+
+#define IS_WORD_SIZE(flags)		(!(flags & (BYTE_SIZE | HALF_SIZE)))
+#define OFFSET_CHECK(imm, shift)	(!(argw & ~(imm << shift)))
+
+/*
+  1st letter:
+  w = word
+  b = byte
+  h = half
+
+  2nd letter:
+  s = signed
+  u = unsigned
+
+  3rd letter:
+  l = load
+  s = store
+*/
+
+static SLJIT_CONST sljit_uw sljit_mem16[12] = {
+/* w u l */ 0x5800 /* ldr */,
+/* w u s */ 0x5000 /* str */,
+/* w s l */ 0x5800 /* ldr */,
+/* w s s */ 0x5000 /* str */,
+
+/* b u l */ 0x5c00 /* ldrb */,
+/* b u s */ 0x5400 /* strb */,
+/* b s l */ 0x5600 /* ldrsb */,
+/* b s s */ 0x5400 /* strb */,
+
+/* h u l */ 0x5a00 /* ldrh */,
+/* h u s */ 0x5200 /* strh */,
+/* h s l */ 0x5e00 /* ldrsh */,
+/* h s s */ 0x5200 /* strh */,
+};
+
+static SLJIT_CONST sljit_uw sljit_mem16_imm5[12] = {
+/* w u l */ 0x6800 /* ldr imm5 */,
+/* w u s */ 0x6000 /* str imm5 */,
+/* w s l */ 0x6800 /* ldr imm5 */,
+/* w s s */ 0x6000 /* str imm5 */,
+
+/* b u l */ 0x7800 /* ldrb imm5 */,
+/* b u s */ 0x7000 /* strb imm5 */,
+/* b s l */ 0x0000 /* not allowed */,
+/* b s s */ 0x7000 /* strb imm5 */,
+
+/* h u l */ 0x8800 /* ldrh imm5 */,
+/* h u s */ 0x8000 /* strh imm5 */,
+/* h s l */ 0x0000 /* not allowed */,
+/* h s s */ 0x8000 /* strh imm5 */,
+};
+
+#define MEM_IMM8	0xc00
+#define MEM_IMM12	0x800000
+static SLJIT_CONST sljit_uw sljit_mem32[12] = {
+/* w u l */ 0xf8500000 /* ldr.w */,
+/* w u s */ 0xf8400000 /* str.w */,
+/* w s l */ 0xf8500000 /* ldr.w */,
+/* w s s */ 0xf8400000 /* str.w */,
+
+/* b u l */ 0xf8100000 /* ldrb.w */,
+/* b u s */ 0xf8000000 /* strb.w */,
+/* b s l */ 0xf9100000 /* ldrsb.w */,
+/* b s s */ 0xf8000000 /* strb.w */,
+
+/* h u l */ 0xf8300000 /* ldrh.w */,
+/* h u s */ 0xf8200000 /* strsh.w */,
+/* h s l */ 0xf9300000 /* ldrsh.w */,
+/* h s s */ 0xf8200000 /* strsh.w */,
+};
+
+/* Helper function. Dst should be reg + value, using at most 1 instruction, flags does not set. */
+static int emit_set_delta(struct sljit_compiler *compiler, int dst, int reg, sljit_w value)
+{
+	if (value >= 0) {
+		if (value <= 0xfff)
+			return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(value));
+		value = get_imm(value);
+		if (value != INVALID_IMM)
+			return push_inst32(compiler, ADD_WI | RD4(dst) | RN4(reg) | value);
+	}
+	else {
+		value = -value;
+		if (value <= 0xfff)
+			return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(value));
+		value = get_imm(value);
+		if (value != INVALID_IMM)
+			return push_inst32(compiler, SUB_WI | RD4(dst) | RN4(reg) | value);
+	}
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+/* Can perform an operation using at most 1 instruction. */
+static int getput_arg_fast(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw)
+{
+	int tmp;
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	if (SLJIT_UNLIKELY(flags & UPDATE)) {
+		if ((arg & 0xf) && !(arg & 0xf0) && argw <= 0xff && argw >= -0xff) {
+			flags &= ~UPDATE;
+			arg &= 0xf;
+			if (SLJIT_UNLIKELY(flags & ARG_TEST))
+				return 1;
+
+			if (argw >= 0)
+				argw |= 0x200;
+			else {
+				argw = -argw;
+			}
+			SLJIT_ASSERT(argw >= 0 && (argw & 0xff) <= 0xff);
+			FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(arg) | 0x100 | argw));
+			return -1;
+		}
+		return (flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
+	}
+
+	if (SLJIT_UNLIKELY(arg & 0xf0)) {
+		argw &= 0x3;
+		tmp = (arg >> 4) & 0xf;
+		arg &= 0xf;
+		if (SLJIT_UNLIKELY(flags & ARG_TEST))
+			return 1;
+
+		if (!argw && IS_3_LO_REGS(reg, arg, tmp))
+			FAIL_IF(push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(tmp)));
+		else
+			FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(tmp) | (argw << 4)));
+		return -1;
+	}
+
+	if (!(arg & 0xf) || argw > 0xfff || argw < -0xff)
+		return (flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
+
+	if (SLJIT_UNLIKELY(flags & ARG_TEST))
+		return 1;
+
+	arg &= 0xf;
+	if (IS_2_LO_REGS(reg, arg) && sljit_mem16_imm5[flags]) {
+		tmp = 3;
+		if (IS_WORD_SIZE(flags)) {
+			if (OFFSET_CHECK(0x1f, 2))
+				tmp = 2;
+		}
+		else if (flags & BYTE_SIZE)
+		{
+			if (OFFSET_CHECK(0x1f, 0))
+				tmp = 0;
+		}
+		else {
+			SLJIT_ASSERT(flags & HALF_SIZE);
+			if (OFFSET_CHECK(0x1f, 1))
+				tmp = 1;
+		}
+
+		if (tmp != 3) {
+			FAIL_IF(push_inst16(compiler, sljit_mem16_imm5[flags] | RD3(reg) | RN3(arg) | (argw << (6 - tmp))));
+			return -1;
+		}
+	}
+
+	/* SP based immediate. */
+	if (SLJIT_UNLIKELY(arg == SLJIT_LOCALS_REG) && OFFSET_CHECK(0xff, 2) && IS_WORD_SIZE(flags) && reg_map[reg] <= 7) {
+		FAIL_IF(push_inst16(compiler, STR_SP | ((flags & STORE) ? 0 : 0x800) | RDN3(reg) | (argw >> 2)));
+		return -1;
+	}
+
+	if (argw >= 0)
+		FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(arg) | argw));
+	else
+		FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(arg) | -argw));
+	return -1;
+}
+
+/* see getput_arg below.
+   Note: can_cache is called only for binary operators. Those
+   operators always uses word arguments without write back. */
+static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
+{
+	/* Simple operation except for updates. */
+	if ((arg & 0xf0) || !(next_arg & SLJIT_MEM))
+		return 0;
+
+	if (!(arg & 0xf)) {
+		if ((sljit_uw)(argw - next_argw) <= 0xfff || (sljit_uw)(next_argw - argw) <= 0xfff)
+			return 1;
+		return 0;
+	}
+
+	if (argw == next_argw)
+		return 1;
+
+	if (arg == next_arg && ((sljit_uw)(argw - next_argw) <= 0xfff || (sljit_uw)(next_argw - argw) <= 0xfff))
+		return 1;
+
+	return 0;
+}
+
+/* Emit the necessary instructions. See can_cache above. */
+static int getput_arg(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
+{
+	int tmp_r;
+	sljit_w tmp;
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+	if (!(next_arg & SLJIT_MEM)) {
+		next_arg = 0;
+		next_argw = 0;
+	}
+
+	tmp_r = (flags & STORE) ? TMP_REG3 : reg;
+
+	if (SLJIT_UNLIKELY(flags & UPDATE)) {
+		flags &= ~UPDATE;
+		/* Update only applies if a base register exists. */
+		if (arg & 0xf) {
+			/* There is no caching here. */
+			tmp = (arg & 0xf0) >> 4;
+			arg &= 0xf;
+
+			if (!tmp) {
+				if (!(argw & ~0xfff)) {
+					FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(arg) | argw));
+					return push_inst32(compiler, ADDWI | RD4(arg) | RN4(arg) | IMM12(argw));
+				}
+
+				if (compiler->cache_arg == SLJIT_MEM) {
+					if (argw == compiler->cache_argw) {
+						tmp = TMP_REG3;
+						argw = 0;
+					}
+					else if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, argw - compiler->cache_argw) != SLJIT_ERR_UNSUPPORTED) {
+						FAIL_IF(compiler->error);
+						compiler->cache_argw = argw;
+						tmp = TMP_REG3;
+						argw = 0;
+					}
+				}
+
+				if (argw) {
+					FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+					compiler->cache_arg = SLJIT_MEM;
+					compiler->cache_argw = argw;
+					tmp = TMP_REG3;
+					argw = 0;
+				}
+			}
+
+			argw &= 0x3;
+			if (!argw && IS_3_LO_REGS(reg, arg, tmp)) {
+				FAIL_IF(push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(tmp)));
+				return push_inst16(compiler, ADD | SET_REGS44(arg, tmp));
+			}
+			FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(tmp) | (argw << 4)));
+			return push_inst32(compiler, ADD_W | RD4(arg) | RN4(arg) | RM4(tmp) | (argw << 6));
+		}
+	}
+
+	SLJIT_ASSERT(!(arg & 0xf0));
+
+	if (compiler->cache_arg == arg) {
+		if (!((argw - compiler->cache_argw) & ~0xfff))
+			return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(TMP_REG3) | (argw - compiler->cache_argw));
+		if (!((compiler->cache_argw - argw) & ~0xff))
+			return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(TMP_REG3) | (compiler->cache_argw - argw));
+		if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, argw - compiler->cache_argw) != SLJIT_ERR_UNSUPPORTED) {
+			FAIL_IF(compiler->error);
+			return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(TMP_REG3) | 0);
+		}
+	}
+
+	next_arg = (arg & 0xf) && (arg == next_arg);
+	arg &= 0xf;
+	if (arg && compiler->cache_arg == SLJIT_MEM && compiler->cache_argw == argw)
+		return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(TMP_REG3));
+
+	compiler->cache_argw = argw;
+	if (next_arg && emit_set_delta(compiler, TMP_REG3, arg, argw) != SLJIT_ERR_UNSUPPORTED) {
+		FAIL_IF(compiler->error);
+		compiler->cache_arg = SLJIT_MEM | arg;
+		arg = 0;
+	}
+	else {
+		FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+		compiler->cache_arg = SLJIT_MEM;
+
+		if (next_arg) {
+			FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG3, arg)));
+			compiler->cache_arg = SLJIT_MEM | arg;
+			arg = 0;
+		}
+	}
+
+	if (arg)
+		return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(TMP_REG3));
+	return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(TMP_REG3) | 0);
+}
+
+static SLJIT_INLINE int emit_op_mem(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw)
+{
+	if (getput_arg_fast(compiler, flags, reg, arg, argw))
+		return compiler->error;
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+	return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	int size;
+	sljit_ins push;
+
+	CHECK_ERROR();
+	check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	push = (1 << 4);
+	if (saveds >= 5)
+		push |= 1 << 11;
+	if (saveds >= 4)
+		push |= 1 << 10;
+	if (saveds >= 3)
+		push |= 1 << 8;
+	if (saveds >= 2)
+		push |= 1 << 7;
+	if (saveds >= 1)
+		push |= 1 << 6;
+        if (temporaries >= 5)
+		push |= 1 << 5;
+	FAIL_IF(saveds >= 3
+		? push_inst32(compiler, PUSH_W | (1 << 14) | push)
+		: push_inst16(compiler, PUSH | push));
+
+	/* Stack must be aligned to 8 bytes: */
+	size = (3 + saveds) * sizeof(sljit_uw);
+	local_size += size;
+	local_size = (local_size + 7) & ~7;
+	local_size -= size;
+	compiler->local_size = local_size;
+	if (local_size > 0) {
+		if (local_size <= (127 << 2))
+			FAIL_IF(push_inst16(compiler, SUB_SP | (local_size >> 2)));
+		else
+			FAIL_IF(emit_op_imm(compiler, SLJIT_SUB | ARG2_IMM, SLJIT_LOCALS_REG, SLJIT_LOCALS_REG, local_size));
+	}
+
+	if (args >= 1)
+		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_SAVED_REG1, SLJIT_TEMPORARY_REG1)));
+	if (args >= 2)
+		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_SAVED_REG2, SLJIT_TEMPORARY_REG2)));
+	if (args >= 3)
+		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_SAVED_REG3, SLJIT_TEMPORARY_REG3)));
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	int size;
+
+	CHECK_ERROR_VOID();
+	check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	size = (3 + saveds) * sizeof(sljit_uw);
+	local_size += size;
+	local_size = (local_size + 7) & ~7;
+	local_size -= size;
+	compiler->local_size = local_size;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	sljit_ins pop;
+
+	CHECK_ERROR();
+	check_sljit_emit_return(compiler, op, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+	if (compiler->local_size > 0) {
+		if (compiler->local_size <= (127 << 2))
+			FAIL_IF(push_inst16(compiler, ADD_SP | (compiler->local_size >> 2)));
+		else
+			FAIL_IF(emit_op_imm(compiler, SLJIT_ADD | ARG2_IMM, SLJIT_LOCALS_REG, SLJIT_LOCALS_REG, compiler->local_size));
+	}
+
+	pop = (1 << 4);
+	if (compiler->saveds >= 5)
+		pop |= 1 << 11;
+	if (compiler->saveds >= 4)
+		pop |= 1 << 10;
+	if (compiler->saveds >= 3)
+		pop |= 1 << 8;
+	if (compiler->saveds >= 2)
+		pop |= 1 << 7;
+	if (compiler->saveds >= 1)
+		pop |= 1 << 6;
+        if (compiler->temporaries >= 5)
+		pop |= 1 << 5;
+	return compiler->saveds >= 3
+		? push_inst32(compiler, POP_W | (1 << 15) | pop)
+		: push_inst16(compiler, POP | pop);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Operators                                                            */
+/* --------------------------------------------------------------------- */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__GNUC__)
+extern unsigned int __aeabi_uidivmod(unsigned numerator, unsigned denominator);
+extern unsigned int __aeabi_idivmod(unsigned numerator, unsigned denominator);
+#else
+#error "Software divmod functions are needed"
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op0(compiler, op);
+
+	op = GET_OPCODE(op);
+	switch (op) {
+	case SLJIT_BREAKPOINT:
+		push_inst16(compiler, BKPT);
+		break;
+	case SLJIT_NOP:
+		push_inst16(compiler, NOP);
+		break;
+	case SLJIT_UMUL:
+	case SLJIT_SMUL:
+		return push_inst32(compiler, (op == SLJIT_UMUL ? UMULL : SMULL)
+			| (reg_map[SLJIT_TEMPORARY_REG2] << 8)
+			| (reg_map[SLJIT_TEMPORARY_REG1] << 12)
+			| (reg_map[SLJIT_TEMPORARY_REG1] << 16)
+			| reg_map[SLJIT_TEMPORARY_REG2]);
+	case SLJIT_UDIV:
+	case SLJIT_SDIV:
+		if (compiler->temporaries >= 4) {
+			FAIL_IF(push_inst32(compiler, 0xf84d2d04 /* str r2, [sp, #-4]! */));
+			FAIL_IF(push_inst32(compiler, 0xf84dcd04 /* str ip, [sp, #-4]! */));
+		} else if (compiler->temporaries >= 3)
+			FAIL_IF(push_inst32(compiler, 0xf84d2d08 /* str r2, [sp, #-8]! */));
+#if defined(__GNUC__)
+		FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
+			(op == SLJIT_UDIV ? SLJIT_FUNC_OFFSET(__aeabi_uidivmod) : SLJIT_FUNC_OFFSET(__aeabi_idivmod))));
+#else
+#error "Software divmod functions are needed"
+#endif
+		if (compiler->temporaries >= 4) {
+			FAIL_IF(push_inst32(compiler, 0xf85dcb04 /* ldr ip, [sp], #4 */));
+			return push_inst32(compiler, 0xf85d2b04 /* ldr r2, [sp], #4 */);
+		} else if (compiler->temporaries >= 3)
+			return push_inst32(compiler, 0xf85d2b08 /* ldr r2, [sp], #8 */);
+		return SLJIT_SUCCESS;
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	int op_type, dst_r, flags;
+
+	CHECK_ERROR();
+	check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	op_type = GET_OPCODE(op);
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG1;
+
+	if (op_type >= SLJIT_MOV && op_type <= SLJIT_MOVU_SI) {
+		switch (op_type) {
+		case SLJIT_MOV:
+		case SLJIT_MOV_UI:
+		case SLJIT_MOV_SI:
+			flags = WORD_SIZE;
+			break;
+		case SLJIT_MOV_UB:
+			flags = BYTE_SIZE;
+			if (src & SLJIT_IMM)
+				srcw = (unsigned char)srcw;
+			break;
+		case SLJIT_MOV_SB:
+			flags = BYTE_SIZE | SIGNED;
+			if (src & SLJIT_IMM)
+				srcw = (signed char)srcw;
+			break;
+		case SLJIT_MOV_UH:
+			flags = HALF_SIZE;
+			if (src & SLJIT_IMM)
+				srcw = (unsigned short)srcw;
+			break;
+		case SLJIT_MOV_SH:
+			flags = HALF_SIZE | SIGNED;
+			if (src & SLJIT_IMM)
+				srcw = (signed short)srcw;
+			break;
+		case SLJIT_MOVU:
+		case SLJIT_MOVU_UI:
+		case SLJIT_MOVU_SI:
+			flags = WORD_SIZE | UPDATE;
+			break;
+		case SLJIT_MOVU_UB:
+			flags = BYTE_SIZE | UPDATE;
+			if (src & SLJIT_IMM)
+				srcw = (unsigned char)srcw;
+			break;
+		case SLJIT_MOVU_SB:
+			flags = BYTE_SIZE | SIGNED | UPDATE;
+			if (src & SLJIT_IMM)
+				srcw = (signed char)srcw;
+			break;
+		case SLJIT_MOVU_UH:
+			flags = HALF_SIZE | UPDATE;
+			if (src & SLJIT_IMM)
+				srcw = (unsigned short)srcw;
+			break;
+		case SLJIT_MOVU_SH:
+			flags = HALF_SIZE | SIGNED | UPDATE;
+			if (src & SLJIT_IMM)
+				srcw = (signed short)srcw;
+			break;
+		default:
+			SLJIT_ASSERT_STOP();
+			flags = 0;
+			break;
+		}
+
+		if (src & SLJIT_IMM)
+			FAIL_IF(emit_op_imm(compiler, SLJIT_MOV | ARG2_IMM, dst_r, TMP_REG1, srcw));
+		else if (src & SLJIT_MEM) {
+			if (getput_arg_fast(compiler, flags, dst_r, src, srcw))
+				FAIL_IF(compiler->error);
+			else
+				FAIL_IF(getput_arg(compiler, flags, dst_r, src, srcw, dst, dstw));
+		} else {
+			if (dst_r != TMP_REG1)
+				return emit_op_imm(compiler, op_type, dst_r, TMP_REG1, src);
+			dst_r = src;
+		}
+
+		if (dst & SLJIT_MEM) {
+			if (getput_arg_fast(compiler, flags | STORE, dst_r, dst, dstw))
+				return compiler->error;
+			else
+				return getput_arg(compiler, flags | STORE, dst_r, dst, dstw, 0, 0);
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	if (op_type == SLJIT_NEG) {
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+		compiler->skip_checks = 1;
+#endif
+		return sljit_emit_op2(compiler, GET_FLAGS(op) | SLJIT_SUB, dst, dstw, SLJIT_IMM, 0, src, srcw);
+	}
+
+	flags = (GET_FLAGS(op) ? SET_FLAGS : 0) | ((op & SLJIT_KEEP_FLAGS) ? KEEP_FLAGS : 0);
+	if (src & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, WORD_SIZE, TMP_REG2, src, srcw))
+			FAIL_IF(compiler->error);
+		else
+			FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src, srcw, dst, dstw));
+		src = TMP_REG2;
+	}
+
+	if (src & SLJIT_IMM)
+		flags |= ARG2_IMM;
+	else
+		srcw = src;
+
+	emit_op_imm(compiler, flags | op_type, dst_r, TMP_REG1, srcw);
+
+	if (dst & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, flags | STORE, dst_r, dst, dstw))
+			return compiler->error;
+		else
+			return getput_arg(compiler, flags | STORE, dst_r, dst, dstw, 0, 0);
+	}
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	int dst_r, flags;
+
+	CHECK_ERROR();
+	check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src1, src1w);
+	ADJUST_LOCAL_OFFSET(src2, src2w);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG1;
+	flags = (GET_FLAGS(op) ? SET_FLAGS : 0) | ((op & SLJIT_KEEP_FLAGS) ? KEEP_FLAGS : 0);
+
+	if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, WORD_SIZE | STORE | ARG_TEST, TMP_REG1, dst, dstw))
+		flags |= SLOW_DEST;
+
+	if (src1 & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, WORD_SIZE, TMP_REG1, src1, src1w))
+			FAIL_IF(compiler->error);
+		else
+			flags |= SLOW_SRC1;
+	}
+	if (src2 & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, WORD_SIZE, TMP_REG2, src2, src2w))
+			FAIL_IF(compiler->error);
+		else
+			flags |= SLOW_SRC2;
+	}
+
+	if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
+		if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
+			FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src2, src2w, src1, src1w));
+			FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG1, src1, src1w, dst, dstw));
+		}
+		else {
+			FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG1, src1, src1w, src2, src2w));
+			FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src2, src2w, dst, dstw));
+		}
+	}
+	else if (flags & SLOW_SRC1)
+		FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG1, src1, src1w, dst, dstw));
+	else if (flags & SLOW_SRC2)
+		FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src2, src2w, dst, dstw));
+
+	if (src1 & SLJIT_MEM)
+		src1 = TMP_REG1;
+	if (src2 & SLJIT_MEM)
+		src2 = TMP_REG2;
+
+	if (src1 & SLJIT_IMM)
+		flags |= ARG1_IMM;
+	else
+		src1w = src1;
+	if (src2 & SLJIT_IMM)
+		flags |= ARG2_IMM;
+	else
+		src2w = src2;
+
+	if (dst == SLJIT_UNUSED)
+		flags |= UNUSED_RETURN;
+
+	if (GET_OPCODE(op) == SLJIT_MUL && (op & SLJIT_SET_O))
+		flags |= SET_MULOV;
+
+	emit_op_imm(compiler, flags | GET_OPCODE(op), dst_r, src1w, src2w);
+
+	if (dst & SLJIT_MEM) {
+		if (!(flags & SLOW_DEST)) {
+			getput_arg_fast(compiler, WORD_SIZE | STORE, dst_r, dst, dstw);
+			return compiler->error;
+		}
+		return getput_arg(compiler, WORD_SIZE | STORE, TMP_REG1, dst, dstw, 0, 0);
+	}
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
+{
+	check_sljit_get_register_index(reg);
+	return reg_map[reg];
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
+	void *instruction, int size)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op_custom(compiler, instruction, size);
+	SLJIT_ASSERT(size == 2 || size == 4);
+
+	if (size == 2)
+		return push_inst16(compiler, *(sljit_uh*)instruction);
+	return push_inst32(compiler, *(sljit_ins*)instruction);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Floating point operators                                             */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
+{
+	return 1;
+}
+
+static int emit_fop_mem(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw)
+{
+	sljit_w tmp;
+	sljit_w inst = VSTR | ((flags & STORE) ? 0 : 0x00100000);
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	/* Fast loads and stores. */
+	if (SLJIT_UNLIKELY(arg & 0xf0)) {
+		FAIL_IF(push_inst32(compiler, ADD_W | RD4(TMP_REG2) | RN4(arg & 0xf) | RM4((arg & 0xf0) >> 4) | ((argw & 0x3) << 6)));
+		arg = SLJIT_MEM | TMP_REG2;
+		argw = 0;
+	}
+
+	if (arg & 0xf) {
+		if (!(argw & ~0x3fc))
+			return push_inst32(compiler, inst | 0x800000 | RN4(arg & 0xf) | DD4(reg) | (argw >> 2));
+		if (!(-argw & ~0x3fc))
+			return push_inst32(compiler, inst | RN4(arg & 0xf) | DD4(reg) | (-argw >> 2));
+	}
+
+	SLJIT_ASSERT(!(arg & 0xf0));
+	if (compiler->cache_arg == arg) {
+		tmp = argw - compiler->cache_argw;
+		if (!(tmp & ~0x3fc))
+			return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG3) | DD4(reg) | (tmp >> 2));
+		if (!(-tmp & ~0x3fc))
+			return push_inst32(compiler, inst | RN4(TMP_REG3) | DD4(reg) | (-tmp >> 2));
+		if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, tmp) != SLJIT_ERR_UNSUPPORTED) {
+			FAIL_IF(compiler->error);
+			compiler->cache_argw = argw;
+			return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG3) | DD4(reg));
+		}
+	}
+
+	compiler->cache_arg = arg;
+	compiler->cache_argw = argw;
+
+	if (SLJIT_UNLIKELY(!(arg & 0xf)))
+		FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+	else if (emit_set_delta(compiler, TMP_REG3, arg & 0xf, argw) != SLJIT_ERR_UNSUPPORTED)
+		FAIL_IF(compiler->error);
+	else {
+		FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+		if (arg & 0xf)
+			FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG3, (arg & 0xf))));
+	}
+	return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG3) | DD4(reg));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	int dst_r;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	if (GET_OPCODE(op) == SLJIT_FCMP) {
+		if (dst & SLJIT_MEM) {
+			emit_fop_mem(compiler, 0, TMP_FREG1, dst, dstw);
+			dst = TMP_FREG1;
+		}
+		if (src & SLJIT_MEM) {
+			emit_fop_mem(compiler, 0, TMP_FREG2, src, srcw);
+			src = TMP_FREG2;
+		}
+		FAIL_IF(push_inst32(compiler, VCMP_F64 | DD4(dst) | DM4(src)));
+		return push_inst32(compiler, VMRS);
+	}
+
+	dst_r = (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) ? dst : TMP_FREG1;
+	if (src & SLJIT_MEM) {
+		emit_fop_mem(compiler, 0, dst_r, src, srcw);
+		src = dst_r;
+	}
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_FMOV:
+		if (src != dst_r)
+			FAIL_IF(push_inst32(compiler, VMOV_F64 | DD4(dst_r) | DM4(src)));
+		break;
+	case SLJIT_FNEG:
+		FAIL_IF(push_inst32(compiler, VNEG_F64 | DD4(dst_r) | DM4(src)));
+		break;
+	case SLJIT_FABS:
+		FAIL_IF(push_inst32(compiler, VABS_F64 | DD4(dst_r) | DM4(src)));
+		break;
+	}
+
+	if (dst & SLJIT_MEM)
+		return emit_fop_mem(compiler, STORE, TMP_FREG1, dst, dstw);
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	int dst_r;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	dst_r = (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) ? dst : TMP_FREG1;
+	if (src1 & SLJIT_MEM) {
+		emit_fop_mem(compiler, 0, TMP_FREG1, src1, src1w);
+		src1 = TMP_FREG1;
+	}
+	if (src2 & SLJIT_MEM) {
+		emit_fop_mem(compiler, 0, TMP_FREG2, src2, src2w);
+		src2 = TMP_FREG2;
+	}
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_FADD:
+		FAIL_IF(push_inst32(compiler, VADD_F64 | DD4(dst_r) | DN4(src1) | DM4(src2)));
+		break;
+	case SLJIT_FSUB:
+		FAIL_IF(push_inst32(compiler, VSUB_F64 | DD4(dst_r) | DN4(src1) | DM4(src2)));
+		break;
+	case SLJIT_FMUL:
+		FAIL_IF(push_inst32(compiler, VMUL_F64 | DD4(dst_r) | DN4(src1) | DM4(src2)));
+		break;
+	case SLJIT_FDIV:
+		FAIL_IF(push_inst32(compiler, VDIV_F64 | DD4(dst_r) | DN4(src1) | DM4(src2)));
+		break;
+	}
+
+	if (dst & SLJIT_MEM)
+		return emit_fop_mem(compiler, STORE, TMP_FREG1, dst, dstw);
+	return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Other instructions                                                   */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_fast_enter(compiler, dst, dstw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
+		return push_inst16(compiler, MOV | SET_REGS44(dst, TMP_REG3));
+	else if (dst & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, WORD_SIZE | STORE, TMP_REG3, dst, dstw))
+			return compiler->error;
+		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG2, TMP_REG3)));
+		compiler->cache_arg = 0;
+		compiler->cache_argw = 0;
+		return getput_arg(compiler, WORD_SIZE | STORE, TMP_REG2, dst, dstw, 0, 0);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_fast_return(compiler, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
+		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG3, src)));
+	else if (src & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, WORD_SIZE, TMP_REG3, src, srcw))
+			FAIL_IF(compiler->error);
+		else {
+			compiler->cache_arg = 0;
+			compiler->cache_argw = 0;
+			FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src, srcw, 0, 0));
+			FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG3, TMP_REG2)));
+		}
+	}
+	else if (src & SLJIT_IMM)
+		FAIL_IF(load_immediate(compiler, TMP_REG3, srcw));
+	return push_inst16(compiler, BLX | RN3(TMP_REG3));
+}
+
+/* --------------------------------------------------------------------- */
+/*  Conditional instructions                                             */
+/* --------------------------------------------------------------------- */
+
+static sljit_uw get_cc(int type)
+{
+	switch (type) {
+	case SLJIT_C_EQUAL:
+	case SLJIT_C_MUL_NOT_OVERFLOW:
+	case SLJIT_C_FLOAT_EQUAL:
+		return 0x0;
+
+	case SLJIT_C_NOT_EQUAL:
+	case SLJIT_C_MUL_OVERFLOW:
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		return 0x1;
+
+	case SLJIT_C_LESS:
+	case SLJIT_C_FLOAT_LESS:
+		return 0x3;
+
+	case SLJIT_C_GREATER_EQUAL:
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		return 0x2;
+
+	case SLJIT_C_GREATER:
+	case SLJIT_C_FLOAT_GREATER:
+		return 0x8;
+
+	case SLJIT_C_LESS_EQUAL:
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		return 0x9;
+
+	case SLJIT_C_SIG_LESS:
+		return 0xb;
+
+	case SLJIT_C_SIG_GREATER_EQUAL:
+		return 0xa;
+
+	case SLJIT_C_SIG_GREATER:
+		return 0xc;
+
+	case SLJIT_C_SIG_LESS_EQUAL:
+		return 0xd;
+
+	case SLJIT_C_OVERFLOW:
+	case SLJIT_C_FLOAT_NAN:
+		return 0x6;
+
+	case SLJIT_C_NOT_OVERFLOW:
+	case SLJIT_C_FLOAT_NOT_NAN:
+		return 0x7;
+
+	default: /* SLJIT_JUMP */
+		return 0xe;
+	}
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
+{
+	struct sljit_label *label;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_label(compiler);
+
+	if (compiler->last_label && compiler->last_label->size == compiler->size)
+		return compiler->last_label;
+
+	label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
+	PTR_FAIL_IF(!label);
+	set_label(label, compiler);
+	return label;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
+{
+	struct sljit_jump *jump;
+	int cc;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_jump(compiler, type);
+
+	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+	PTR_FAIL_IF(!jump);
+	set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
+	type &= 0xff;
+
+	/* In ARM, we don't need to touch the arguments. */
+	PTR_FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0));
+	if (type < SLJIT_JUMP) {
+		jump->flags |= IS_CONDITIONAL;
+		cc = get_cc(type);
+		jump->flags |= cc << 8;
+		PTR_FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
+	}
+
+	jump->addr = compiler->size;
+	if (type <= SLJIT_JUMP)
+		PTR_FAIL_IF(push_inst16(compiler, BX | RN3(TMP_REG1)));
+	else {
+		jump->flags |= IS_BL;
+		PTR_FAIL_IF(push_inst16(compiler, BLX | RN3(TMP_REG1)));
+	}
+
+	return jump;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
+{
+	struct sljit_jump *jump;
+
+	CHECK_ERROR();
+	check_sljit_emit_ijump(compiler, type, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	/* In ARM, we don't need to touch the arguments. */
+	if (src & SLJIT_IMM) {
+		jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+		FAIL_IF(!jump);
+		set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_BL : 0));
+		jump->u.target = srcw;
+
+		FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0));
+		jump->addr = compiler->size;
+		FAIL_IF(push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(TMP_REG1)));
+	}
+	else {
+		if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
+			return push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(src));
+
+		FAIL_IF(emit_op_mem(compiler, WORD_SIZE, type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, src, srcw));
+		if (type >= SLJIT_FAST_CALL)
+			return push_inst16(compiler, BLX | RN3(TMP_REG1));
+	}
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
+{
+	int dst_r;
+	sljit_uw cc;
+
+	CHECK_ERROR();
+	check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	if (dst == SLJIT_UNUSED)
+		return SLJIT_SUCCESS;
+
+	cc = get_cc(type);
+	if (GET_OPCODE(op) == SLJIT_OR && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+		FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
+		FAIL_IF(push_inst32(compiler, ORRI | RN4(dst) | RD4(dst) | 0x1));
+		if (op & SLJIT_SET_E) {
+			if (reg_map[dst] <= 7)
+				return push_inst16(compiler, ORRS | RD3(dst) | RN3(dst));
+			return push_inst32(compiler, ORR_W | SET_FLAGS | RD4(TMP_REG1) | RN4(dst) | RM4(dst));
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	dst_r = TMP_REG2;
+	if (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS && reg_map[dst] <= 7)
+		dst_r = dst;
+
+	FAIL_IF(push_inst16(compiler, IT | (cc << 4) | (((cc & 0x1) ^ 0x1) << 3) | 0x4));
+	FAIL_IF(push_inst16(compiler, MOVSI | 0x1 | RDN3(dst_r)));
+	FAIL_IF(push_inst16(compiler, MOVSI | 0x0 | RDN3(dst_r)));
+
+	if (dst_r == TMP_REG2) {
+		if (GET_OPCODE(op) == SLJIT_OR) {
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+			compiler->skip_checks = 1;
+#endif
+			return sljit_emit_op2(compiler, op, dst, dstw, dst, dstw, TMP_REG2, 0);
+		}
+		if (dst & SLJIT_MEM)
+			return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG2, dst, dstw);
+		else
+			return push_inst16(compiler, MOV | SET_REGS44(dst, TMP_REG2));
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
+{
+	struct sljit_const *const_;
+	int dst_r;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_const(compiler, dst, dstw, init_value);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
+	PTR_FAIL_IF(!const_);
+	set_const(const_, compiler);
+
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG1;
+	PTR_FAIL_IF(emit_imm32_const(compiler, dst_r, init_value));
+
+	if (dst & SLJIT_MEM)
+		PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw));
+	return const_;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+	inline_set_jump_addr(addr, new_addr, 1);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
+{
+	sljit_uh* inst = (sljit_uh*)addr;
+	modify_imm32_const(inst, new_constant);
+	SLJIT_CACHE_FLUSH(inst, inst + 3);
+}
diff --git a/8.31/sljit/sljitNativeARM_v5.c b/8.31/sljit/sljitNativeARM_v5.c
new file mode 100644
index 0000000..5dc555c
--- /dev/null
+++ b/8.31/sljit/sljitNativeARM_v5.c
@@ -0,0 +1,2456 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
+{
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+	return "ARMv7" SLJIT_CPUINFO;
+#elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	return "ARMv5" SLJIT_CPUINFO;
+#else
+#error "Internal error: Unknown ARM architecture"
+#endif
+}
+
+/* Last register + 1. */
+#define TMP_REG1	(SLJIT_NO_REGISTERS + 1)
+#define TMP_REG2	(SLJIT_NO_REGISTERS + 2)
+#define TMP_REG3	(SLJIT_NO_REGISTERS + 3)
+#define TMP_PC		(SLJIT_NO_REGISTERS + 4)
+
+#define TMP_FREG1	(SLJIT_FLOAT_REG4 + 1)
+#define TMP_FREG2	(SLJIT_FLOAT_REG4 + 2)
+
+/* In ARM instruction words.
+   Cache lines are usually 32 byte aligned. */
+#define CONST_POOL_ALIGNMENT	8
+#define CONST_POOL_EMPTY	0xffffffff
+
+#define ALIGN_INSTRUCTION(ptr) \
+	(sljit_uw*)(((sljit_uw)(ptr) + (CONST_POOL_ALIGNMENT * sizeof(sljit_uw)) - 1) & ~((CONST_POOL_ALIGNMENT * sizeof(sljit_uw)) - 1))
+#define MAX_DIFFERENCE(max_diff) \
+	(((max_diff) / (int)sizeof(sljit_uw)) - (CONST_POOL_ALIGNMENT - 1))
+
+/* See sljit_emit_enter and sljit_emit_op0 if you want to change them. */
+static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 5] = {
+  0, 0, 1, 2, 10, 11, 4, 5, 6, 7, 8, 13, 3, 12, 14, 15
+};
+
+#define RM(rm) (reg_map[rm])
+#define RD(rd) (reg_map[rd] << 12)
+#define RN(rn) (reg_map[rn] << 16)
+
+/* --------------------------------------------------------------------- */
+/*  Instrucion forms                                                     */
+/* --------------------------------------------------------------------- */
+
+/* The instruction includes the AL condition.
+   INST_NAME - CONDITIONAL remove this flag. */
+#define COND_MASK	0xf0000000
+#define CONDITIONAL	0xe0000000
+#define PUSH_POOL	0xff000000
+
+/* DP - Data Processing instruction (use with EMIT_DATA_PROCESS_INS). */
+#define ADC_DP		0x5
+#define ADD_DP		0x4
+#define AND_DP		0x0
+#define B		0xea000000
+#define BIC_DP		0xe
+#define BL		0xeb000000
+#define BLX		0xe12fff30
+#define BX		0xe12fff10
+#define CLZ		0xe16f0f10
+#define CMP_DP		0xa
+#define BKPT		0xe1200070
+#define EOR_DP		0x1
+#define MOV_DP		0xd
+#define MUL		0xe0000090
+#define MVN_DP		0xf
+#define NOP		0xe1a00000
+#define ORR_DP		0xc
+#define PUSH		0xe92d0000
+#define POP		0xe8bd0000
+#define RSB_DP		0x3
+#define RSC_DP		0x7
+#define SBC_DP		0x6
+#define SMULL		0xe0c00090
+#define SUB_DP		0x2
+#define UMULL		0xe0800090
+#define VABS_F64	0xeeb00bc0
+#define VADD_F64	0xee300b00
+#define VCMP_F64	0xeeb40b40
+#define VDIV_F64	0xee800b00
+#define VMOV_F64	0xeeb00b40
+#define VMRS		0xeef1fa10
+#define VMUL_F64	0xee200b00
+#define VNEG_F64	0xeeb10b40
+#define VSTR		0xed000b00
+#define VSUB_F64	0xee300b40
+
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+/* Arm v7 specific instructions. */
+#define MOVW		0xe3000000
+#define MOVT		0xe3400000
+#define SXTB		0xe6af0070
+#define SXTH		0xe6bf0070
+#define UXTB		0xe6ef0070
+#define UXTH		0xe6ff0070
+#endif
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+
+static int push_cpool(struct sljit_compiler *compiler)
+{
+	/* Pushing the constant pool into the instruction stream. */
+	sljit_uw* inst;
+	sljit_uw* cpool_ptr;
+	sljit_uw* cpool_end;
+	int i;
+
+	/* The label could point the address after the constant pool. */
+	if (compiler->last_label && compiler->last_label->size == compiler->size)
+		compiler->last_label->size += compiler->cpool_fill + (CONST_POOL_ALIGNMENT - 1) + 1;
+
+	SLJIT_ASSERT(compiler->cpool_fill > 0 && compiler->cpool_fill <= CPOOL_SIZE);
+	inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+	FAIL_IF(!inst);
+	compiler->size++;
+	*inst = 0xff000000 | compiler->cpool_fill;
+
+	for (i = 0; i < CONST_POOL_ALIGNMENT - 1; i++) {
+		inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+		FAIL_IF(!inst);
+		compiler->size++;
+		*inst = 0;
+	}
+
+	cpool_ptr = compiler->cpool;
+	cpool_end = cpool_ptr + compiler->cpool_fill;
+	while (cpool_ptr < cpool_end) {
+		inst = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+		FAIL_IF(!inst);
+		compiler->size++;
+		*inst = *cpool_ptr++;
+	}
+	compiler->cpool_diff = CONST_POOL_EMPTY;
+	compiler->cpool_fill = 0;
+	return SLJIT_SUCCESS;
+}
+
+static int push_inst(struct sljit_compiler *compiler, sljit_uw inst)
+{
+	sljit_uw* ptr;
+
+	if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)))
+		FAIL_IF(push_cpool(compiler));
+
+	ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+	FAIL_IF(!ptr);
+	compiler->size++;
+	*ptr = inst;
+	return SLJIT_SUCCESS;
+}
+
+static int push_inst_with_literal(struct sljit_compiler *compiler, sljit_uw inst, sljit_uw literal)
+{
+	sljit_uw* ptr;
+	sljit_uw cpool_index = CPOOL_SIZE;
+	sljit_uw* cpool_ptr;
+	sljit_uw* cpool_end;
+	sljit_ub* cpool_unique_ptr;
+
+	if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)))
+		FAIL_IF(push_cpool(compiler));
+	else if (compiler->cpool_fill > 0) {
+		cpool_ptr = compiler->cpool;
+		cpool_end = cpool_ptr + compiler->cpool_fill;
+		cpool_unique_ptr = compiler->cpool_unique;
+		do {
+			if ((*cpool_ptr == literal) && !(*cpool_unique_ptr)) {
+				cpool_index = cpool_ptr - compiler->cpool;
+				break;
+			}
+			cpool_ptr++;
+			cpool_unique_ptr++;
+		} while (cpool_ptr < cpool_end);
+	}
+
+	if (cpool_index == CPOOL_SIZE) {
+		/* Must allocate a new entry in the literal pool. */
+		if (compiler->cpool_fill < CPOOL_SIZE) {
+			cpool_index = compiler->cpool_fill;
+			compiler->cpool_fill++;
+		}
+		else {
+			FAIL_IF(push_cpool(compiler));
+			cpool_index = 0;
+			compiler->cpool_fill = 1;
+		}
+	}
+
+	SLJIT_ASSERT((inst & 0xfff) == 0);
+	ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+	FAIL_IF(!ptr);
+	compiler->size++;
+	*ptr = inst | cpool_index;
+
+	compiler->cpool[cpool_index] = literal;
+	compiler->cpool_unique[cpool_index] = 0;
+	if (compiler->cpool_diff == CONST_POOL_EMPTY)
+		compiler->cpool_diff = compiler->size;
+	return SLJIT_SUCCESS;
+}
+
+static int push_inst_with_unique_literal(struct sljit_compiler *compiler, sljit_uw inst, sljit_uw literal)
+{
+	sljit_uw* ptr;
+	if (SLJIT_UNLIKELY((compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4092)) || compiler->cpool_fill >= CPOOL_SIZE))
+		FAIL_IF(push_cpool(compiler));
+
+	SLJIT_ASSERT(compiler->cpool_fill < CPOOL_SIZE && (inst & 0xfff) == 0);
+	ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+	FAIL_IF(!ptr);
+	compiler->size++;
+	*ptr = inst | compiler->cpool_fill;
+
+	compiler->cpool[compiler->cpool_fill] = literal;
+	compiler->cpool_unique[compiler->cpool_fill] = 1;
+	compiler->cpool_fill++;
+	if (compiler->cpool_diff == CONST_POOL_EMPTY)
+		compiler->cpool_diff = compiler->size;
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int prepare_blx(struct sljit_compiler *compiler)
+{
+	/* Place for at least two instruction (doesn't matter whether the first has a literal). */
+	if (SLJIT_UNLIKELY(compiler->cpool_diff != CONST_POOL_EMPTY && compiler->size - compiler->cpool_diff >= MAX_DIFFERENCE(4088)))
+		return push_cpool(compiler);
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int emit_blx(struct sljit_compiler *compiler)
+{
+	/* Must follow tightly the previous instruction (to be able to convert it to bl instruction). */
+	SLJIT_ASSERT(compiler->cpool_diff == CONST_POOL_EMPTY || compiler->size - compiler->cpool_diff < MAX_DIFFERENCE(4092));
+	return push_inst(compiler, BLX | RM(TMP_REG1));
+}
+
+static sljit_uw patch_pc_relative_loads(sljit_uw *last_pc_patch, sljit_uw *code_ptr, sljit_uw* const_pool, sljit_uw cpool_size)
+{
+	sljit_uw diff;
+	sljit_uw ind;
+	sljit_uw counter = 0;
+	sljit_uw* clear_const_pool = const_pool;
+	sljit_uw* clear_const_pool_end = const_pool + cpool_size;
+
+	SLJIT_ASSERT(const_pool - code_ptr <= CONST_POOL_ALIGNMENT);
+	/* Set unused flag for all literals in the constant pool.
+	   I.e.: unused literals can belong to branches, which can be encoded as B or BL.
+	   We can "compress" the constant pool by discarding these literals. */
+	while (clear_const_pool < clear_const_pool_end)
+		*clear_const_pool++ = (sljit_uw)(-1);
+
+	while (last_pc_patch < code_ptr) {
+		/* Data transfer instruction with Rn == r15. */
+		if ((*last_pc_patch & 0x0c0f0000) == 0x040f0000) {
+			diff = const_pool - last_pc_patch;
+			ind = (*last_pc_patch) & 0xfff;
+
+			/* Must be a load instruction with immediate offset. */
+			SLJIT_ASSERT(ind < cpool_size && !(*last_pc_patch & (1 << 25)) && (*last_pc_patch & (1 << 20)));
+			if ((int)const_pool[ind] < 0) {
+				const_pool[ind] = counter;
+				ind = counter;
+				counter++;
+			}
+			else
+				ind = const_pool[ind];
+
+			SLJIT_ASSERT(diff >= 1);
+			if (diff >= 2 || ind > 0) {
+				diff = (diff + ind - 2) << 2;
+				SLJIT_ASSERT(diff <= 0xfff);
+				*last_pc_patch = (*last_pc_patch & ~0xfff) | diff;
+			}
+			else
+				*last_pc_patch = (*last_pc_patch & ~(0xfff | (1 << 23))) | 0x004;
+		}
+		last_pc_patch++;
+	}
+	return counter;
+}
+
+/* In some rare ocasions we may need future patches. The probability is close to 0 in practice. */
+struct future_patch {
+	struct future_patch* next;
+	int index;
+	int value;
+};
+
+static SLJIT_INLINE int resolve_const_pool_index(struct future_patch **first_patch, sljit_uw cpool_current_index, sljit_uw *cpool_start_address, sljit_uw *buf_ptr)
+{
+	int value;
+	struct future_patch *curr_patch, *prev_patch;
+
+	/* Using the values generated by patch_pc_relative_loads. */
+	if (!*first_patch)
+		value = (int)cpool_start_address[cpool_current_index];
+	else {
+		curr_patch = *first_patch;
+		prev_patch = 0;
+		while (1) {
+			if (!curr_patch) {
+				value = (int)cpool_start_address[cpool_current_index];
+				break;
+			}
+			if ((sljit_uw)curr_patch->index == cpool_current_index) {
+				value = curr_patch->value;
+				if (prev_patch)
+					prev_patch->next = curr_patch->next;
+				else
+					*first_patch = curr_patch->next;
+				SLJIT_FREE(curr_patch);
+				break;
+			}
+			prev_patch = curr_patch;
+			curr_patch = curr_patch->next;
+		}
+	}
+
+	if (value >= 0) {
+		if ((sljit_uw)value > cpool_current_index) {
+			curr_patch = (struct future_patch*)SLJIT_MALLOC(sizeof(struct future_patch));
+			if (!curr_patch) {
+				while (*first_patch) {
+					curr_patch = *first_patch;
+					*first_patch = (*first_patch)->next;
+					SLJIT_FREE(curr_patch);
+				}
+				return SLJIT_ERR_ALLOC_FAILED;
+			}
+			curr_patch->next = *first_patch;
+			curr_patch->index = value;
+			curr_patch->value = cpool_start_address[value];
+			*first_patch = curr_patch;
+		}
+		cpool_start_address[value] = *buf_ptr;
+	}
+	return SLJIT_SUCCESS;
+}
+
+#else
+
+static int push_inst(struct sljit_compiler *compiler, sljit_uw inst)
+{
+	sljit_uw* ptr;
+
+	ptr = (sljit_uw*)ensure_buf(compiler, sizeof(sljit_uw));
+	FAIL_IF(!ptr);
+	compiler->size++;
+	*ptr = inst;
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int emit_imm(struct sljit_compiler *compiler, int reg, sljit_w imm)
+{
+	FAIL_IF(push_inst(compiler, MOVW | RD(reg) | ((imm << 4) & 0xf0000) | (imm & 0xfff)));
+	return push_inst(compiler, MOVT | RD(reg) | ((imm >> 12) & 0xf0000) | ((imm >> 16) & 0xfff));
+}
+
+#endif
+
+static SLJIT_INLINE int detect_jump_type(struct sljit_jump *jump, sljit_uw *code_ptr, sljit_uw *code)
+{
+	sljit_w diff;
+
+	if (jump->flags & SLJIT_REWRITABLE_JUMP)
+		return 0;
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	if (jump->flags & IS_BL)
+		code_ptr--;
+
+	if (jump->flags & JUMP_ADDR)
+		diff = ((sljit_w)jump->u.target - (sljit_w)(code_ptr + 2));
+	else {
+		SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+		diff = ((sljit_w)(code + jump->u.label->size) - (sljit_w)(code_ptr + 2));
+	}
+
+	/* Branch to Thumb code has not been optimized yet. */
+	if (diff & 0x3)
+		return 0;
+
+	diff >>= 2;
+	if (jump->flags & IS_BL) {
+		if (diff <= 0x01ffffff && diff >= -0x02000000) {
+			*code_ptr = (BL - CONDITIONAL) | (*(code_ptr + 1) & COND_MASK);
+			jump->flags |= PATCH_B;
+			return 1;
+		}
+	}
+	else {
+		if (diff <= 0x01ffffff && diff >= -0x02000000) {
+			*code_ptr = (B - CONDITIONAL) | (*code_ptr & COND_MASK);
+			jump->flags |= PATCH_B;
+		}
+	}
+#else
+	if (jump->flags & JUMP_ADDR)
+		diff = ((sljit_w)jump->u.target - (sljit_w)code_ptr);
+	else {
+		SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+		diff = ((sljit_w)(code + jump->u.label->size) - (sljit_w)code_ptr);
+	}
+
+	/* Branch to Thumb code has not been optimized yet. */
+	if (diff & 0x3)
+		return 0;
+
+	diff >>= 2;
+	if (diff <= 0x01ffffff && diff >= -0x02000000) {
+		code_ptr -= 2;
+		*code_ptr = ((jump->flags & IS_BL) ? (BL - CONDITIONAL) : (B - CONDITIONAL)) | (code_ptr[2] & COND_MASK);
+		jump->flags |= PATCH_B;
+		return 1;
+	}
+#endif
+	return 0;
+}
+
+static SLJIT_INLINE void inline_set_jump_addr(sljit_uw addr, sljit_uw new_addr, int flush)
+{
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	sljit_uw *ptr = (sljit_uw*)addr;
+	sljit_uw *inst = (sljit_uw*)ptr[0];
+	sljit_uw mov_pc = ptr[1];
+	int bl = (mov_pc & 0x0000f000) != RD(TMP_PC);
+	sljit_w diff = (sljit_w)(((sljit_w)new_addr - (sljit_w)(inst + 2)) >> 2);
+
+	if (diff <= 0x7fffff && diff >= -0x800000) {
+		/* Turn to branch. */
+		if (!bl) {
+			inst[0] = (mov_pc & COND_MASK) | (B - CONDITIONAL) | (diff & 0xffffff);
+			if (flush) {
+				SLJIT_CACHE_FLUSH(inst, inst + 1);
+			}
+		} else {
+			inst[0] = (mov_pc & COND_MASK) | (BL - CONDITIONAL) | (diff & 0xffffff);
+			inst[1] = NOP;
+			if (flush) {
+				SLJIT_CACHE_FLUSH(inst, inst + 2);
+			}
+		}
+	} else {
+		/* Get the position of the constant. */
+		if (mov_pc & (1 << 23))
+			ptr = inst + ((mov_pc & 0xfff) >> 2) + 2;
+		else
+			ptr = inst + 1;
+
+		if (*inst != mov_pc) {
+			inst[0] = mov_pc;
+			if (!bl) {
+				if (flush) {
+					SLJIT_CACHE_FLUSH(inst, inst + 1);
+				}
+			} else {
+				inst[1] = BLX | RM(TMP_REG1);
+				if (flush) {
+					SLJIT_CACHE_FLUSH(inst, inst + 2);
+				}
+			}
+		}
+		*ptr = new_addr;
+	}
+#else
+	sljit_uw *inst = (sljit_uw*)addr;
+	SLJIT_ASSERT((inst[0] & 0xfff00000) == MOVW && (inst[1] & 0xfff00000) == MOVT);
+	inst[0] = MOVW | (inst[0] & 0xf000) | ((new_addr << 4) & 0xf0000) | (new_addr & 0xfff);
+	inst[1] = MOVT | (inst[1] & 0xf000) | ((new_addr >> 12) & 0xf0000) | ((new_addr >> 16) & 0xfff);
+	if (flush) {
+		SLJIT_CACHE_FLUSH(inst, inst + 2);
+	}
+#endif
+}
+
+static sljit_uw get_immediate(sljit_uw imm);
+
+static SLJIT_INLINE void inline_set_const(sljit_uw addr, sljit_w new_constant, int flush)
+{
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	sljit_uw *ptr = (sljit_uw*)addr;
+	sljit_uw *inst = (sljit_uw*)ptr[0];
+	sljit_uw ldr_literal = ptr[1];
+	sljit_uw src2;
+
+	src2 = get_immediate(new_constant);
+	if (src2) {
+		*inst = 0xe3a00000 | (ldr_literal & 0xf000) | src2;
+		if (flush) {
+			SLJIT_CACHE_FLUSH(inst, inst + 1);
+		}
+		return;
+	}
+
+	src2 = get_immediate(~new_constant);
+	if (src2) {
+		*inst = 0xe3e00000 | (ldr_literal & 0xf000) | src2;
+		if (flush) {
+			SLJIT_CACHE_FLUSH(inst, inst + 1);
+		}
+		return;
+	}
+
+	if (ldr_literal & (1 << 23))
+		ptr = inst + ((ldr_literal & 0xfff) >> 2) + 2;
+	else
+		ptr = inst + 1;
+
+	if (*inst != ldr_literal) {
+		*inst = ldr_literal;
+		if (flush) {
+			SLJIT_CACHE_FLUSH(inst, inst + 1);
+		}
+	}
+	*ptr = new_constant;
+#else
+	sljit_uw *inst = (sljit_uw*)addr;
+	SLJIT_ASSERT((inst[0] & 0xfff00000) == MOVW && (inst[1] & 0xfff00000) == MOVT);
+	inst[0] = MOVW | (inst[0] & 0xf000) | ((new_constant << 4) & 0xf0000) | (new_constant & 0xfff);
+	inst[1] = MOVT | (inst[1] & 0xf000) | ((new_constant >> 12) & 0xf0000) | ((new_constant >> 16) & 0xfff);
+	if (flush) {
+		SLJIT_CACHE_FLUSH(inst, inst + 2);
+	}
+#endif
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+	struct sljit_memory_fragment *buf;
+	sljit_uw *code;
+	sljit_uw *code_ptr;
+	sljit_uw *buf_ptr;
+	sljit_uw *buf_end;
+	sljit_uw size;
+	sljit_uw word_count;
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	sljit_uw cpool_size;
+	sljit_uw cpool_skip_alignment;
+	sljit_uw cpool_current_index;
+	sljit_uw *cpool_start_address;
+	sljit_uw *last_pc_patch;
+	struct future_patch *first_patch;
+#endif
+
+	struct sljit_label *label;
+	struct sljit_jump *jump;
+	struct sljit_const *const_;
+
+	CHECK_ERROR_PTR();
+	check_sljit_generate_code(compiler);
+	reverse_buf(compiler);
+
+	/* Second code generation pass. */
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	size = compiler->size + (compiler->patches << 1);
+	if (compiler->cpool_fill > 0)
+		size += compiler->cpool_fill + CONST_POOL_ALIGNMENT - 1;
+#else
+	size = compiler->size;
+#endif
+	code = (sljit_uw*)SLJIT_MALLOC_EXEC(size * sizeof(sljit_uw));
+	PTR_FAIL_WITH_EXEC_IF(code);
+	buf = compiler->buf;
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	cpool_size = 0;
+	cpool_skip_alignment = 0;
+	cpool_current_index = 0;
+	cpool_start_address = NULL;
+	first_patch = NULL;
+	last_pc_patch = code;
+#endif
+
+	code_ptr = code;
+	word_count = 0;
+
+	label = compiler->labels;
+	jump = compiler->jumps;
+	const_ = compiler->consts;
+
+	if (label && label->size == 0) {
+		label->addr = (sljit_uw)code;
+		label->size = 0;
+		label = label->next;
+	}
+
+	do {
+		buf_ptr = (sljit_uw*)buf->memory;
+		buf_end = buf_ptr + (buf->used_size >> 2);
+		do {
+			word_count++;
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+			if (cpool_size > 0) {
+				if (cpool_skip_alignment > 0) {
+					buf_ptr++;
+					cpool_skip_alignment--;
+				}
+				else {
+					if (SLJIT_UNLIKELY(resolve_const_pool_index(&first_patch, cpool_current_index, cpool_start_address, buf_ptr))) {
+						SLJIT_FREE_EXEC(code);
+						compiler->error = SLJIT_ERR_ALLOC_FAILED;
+						return NULL;
+					}
+					buf_ptr++;
+					if (++cpool_current_index >= cpool_size) {
+						SLJIT_ASSERT(!first_patch);
+						cpool_size = 0;
+						if (label && label->size == word_count) {
+							/* Points after the current instruction. */
+							label->addr = (sljit_uw)code_ptr;
+							label->size = code_ptr - code;
+							label = label->next;
+						}
+					}
+				}
+			}
+			else if ((*buf_ptr & 0xff000000) != PUSH_POOL) {
+#endif
+				*code_ptr = *buf_ptr++;
+				/* These structures are ordered by their address. */
+				SLJIT_ASSERT(!label || label->size >= word_count);
+				SLJIT_ASSERT(!jump || jump->addr >= word_count);
+				SLJIT_ASSERT(!const_ || const_->addr >= word_count);
+				if (jump && jump->addr == word_count) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+					if (detect_jump_type(jump, code_ptr, code))
+						code_ptr--;
+					jump->addr = (sljit_uw)code_ptr;
+#else
+					jump->addr = (sljit_uw)(code_ptr - 2);
+					if (detect_jump_type(jump, code_ptr, code))
+						code_ptr -= 2;
+#endif
+					jump = jump->next;
+				}
+				if (label && label->size == word_count) {
+					/* code_ptr can be affected above. */
+					label->addr = (sljit_uw)(code_ptr + 1);
+					label->size = (code_ptr + 1) - code;
+					label = label->next;
+				}
+				if (const_ && const_->addr == word_count) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+					const_->addr = (sljit_uw)code_ptr;
+#else
+					const_->addr = (sljit_uw)(code_ptr - 1);
+#endif
+					const_ = const_->next;
+				}
+				code_ptr++;
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+			}
+			else {
+				/* Fortunately, no need to shift. */
+				cpool_size = *buf_ptr++ & ~PUSH_POOL;
+				SLJIT_ASSERT(cpool_size > 0);
+				cpool_start_address = ALIGN_INSTRUCTION(code_ptr + 1);
+				cpool_current_index = patch_pc_relative_loads(last_pc_patch, code_ptr, cpool_start_address, cpool_size);
+				if (cpool_current_index > 0) {
+					/* Unconditional branch. */
+					*code_ptr = B | (((cpool_start_address - code_ptr) + cpool_current_index - 2) & ~PUSH_POOL);
+					code_ptr = cpool_start_address + cpool_current_index;
+				}
+				cpool_skip_alignment = CONST_POOL_ALIGNMENT - 1;
+				cpool_current_index = 0;
+				last_pc_patch = code_ptr;
+			}
+#endif
+		} while (buf_ptr < buf_end);
+		buf = buf->next;
+	} while (buf);
+
+	SLJIT_ASSERT(!label);
+	SLJIT_ASSERT(!jump);
+	SLJIT_ASSERT(!const_);
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	SLJIT_ASSERT(cpool_size == 0);
+	if (compiler->cpool_fill > 0) {
+		cpool_start_address = ALIGN_INSTRUCTION(code_ptr);
+		cpool_current_index = patch_pc_relative_loads(last_pc_patch, code_ptr, cpool_start_address, compiler->cpool_fill);
+		if (cpool_current_index > 0)
+			code_ptr = cpool_start_address + cpool_current_index;
+
+		buf_ptr = compiler->cpool;
+		buf_end = buf_ptr + compiler->cpool_fill;
+		cpool_current_index = 0;
+		while (buf_ptr < buf_end) {
+			if (SLJIT_UNLIKELY(resolve_const_pool_index(&first_patch, cpool_current_index, cpool_start_address, buf_ptr))) {
+				SLJIT_FREE_EXEC(code);
+				compiler->error = SLJIT_ERR_ALLOC_FAILED;
+				return NULL;
+			}
+			buf_ptr++;
+			cpool_current_index++;
+		}
+		SLJIT_ASSERT(!first_patch);
+	}
+#endif
+
+	jump = compiler->jumps;
+	while (jump) {
+		buf_ptr = (sljit_uw*)jump->addr;
+
+		if (jump->flags & PATCH_B) {
+			if (!(jump->flags & JUMP_ADDR)) {
+				SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+				SLJIT_ASSERT(((sljit_w)jump->u.label->addr - (sljit_w)(buf_ptr + 2)) <= 0x01ffffff && ((sljit_w)jump->u.label->addr - (sljit_w)(buf_ptr + 2)) >= -0x02000000);
+				*buf_ptr |= (((sljit_w)jump->u.label->addr - (sljit_w)(buf_ptr + 2)) >> 2) & 0x00ffffff;
+			}
+			else {
+				SLJIT_ASSERT(((sljit_w)jump->u.target - (sljit_w)(buf_ptr + 2)) <= 0x01ffffff && ((sljit_w)jump->u.target - (sljit_w)(buf_ptr + 2)) >= -0x02000000);
+				*buf_ptr |= (((sljit_w)jump->u.target - (sljit_w)(buf_ptr + 2)) >> 2) & 0x00ffffff;
+			}
+		}
+		else if (jump->flags & SLJIT_REWRITABLE_JUMP) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+			jump->addr = (sljit_uw)code_ptr;
+			code_ptr[0] = (sljit_uw)buf_ptr;
+			code_ptr[1] = *buf_ptr;
+			inline_set_jump_addr((sljit_uw)code_ptr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
+			code_ptr += 2;
+#else
+			inline_set_jump_addr((sljit_uw)buf_ptr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
+#endif
+		}
+		else {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+			if (jump->flags & IS_BL)
+				buf_ptr--;
+			if (*buf_ptr & (1 << 23))
+				buf_ptr += ((*buf_ptr & 0xfff) >> 2) + 2;
+			else
+				buf_ptr += 1;
+			*buf_ptr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
+#else
+			inline_set_jump_addr((sljit_uw)buf_ptr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
+#endif
+		}
+		jump = jump->next;
+	}
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	const_ = compiler->consts;
+	while (const_) {
+		buf_ptr = (sljit_uw*)const_->addr;
+		const_->addr = (sljit_uw)code_ptr;
+
+		code_ptr[0] = (sljit_uw)buf_ptr;
+		code_ptr[1] = *buf_ptr;
+		if (*buf_ptr & (1 << 23))
+			buf_ptr += ((*buf_ptr & 0xfff) >> 2) + 2;
+		else
+			buf_ptr += 1;
+		/* Set the value again (can be a simple constant). */
+		inline_set_const((sljit_uw)code_ptr, *buf_ptr, 0);
+		code_ptr += 2;
+
+		const_ = const_->next;
+	}
+#endif
+
+	SLJIT_ASSERT(code_ptr - code <= (int)size);
+
+	SLJIT_CACHE_FLUSH(code, code_ptr);
+	compiler->error = SLJIT_ERR_COMPILED;
+	compiler->executable_size = size * sizeof(sljit_uw);
+	return code;
+}
+
+/* emit_op inp_flags.
+   WRITE_BACK must be the first, since it is a flag. */
+#define WRITE_BACK	0x01
+#define ALLOW_IMM	0x02
+#define ALLOW_INV_IMM	0x04
+#define ALLOW_ANY_IMM	(ALLOW_IMM | ALLOW_INV_IMM)
+#define ARG_TEST	0x08
+
+/* Creates an index in data_transfer_insts array. */
+#define WORD_DATA	0x00
+#define BYTE_DATA	0x10
+#define HALF_DATA	0x20
+#define SIGNED_DATA	0x40
+#define LOAD_DATA	0x80
+
+#define EMIT_INSTRUCTION(inst) \
+	FAIL_IF(push_inst(compiler, (inst)))
+
+/* Condition: AL. */
+#define EMIT_DATA_PROCESS_INS(opcode, set_flags, dst, src1, src2) \
+	(0xe0000000 | ((opcode) << 21) | (set_flags) | RD(dst) | RN(src1) | (src2))
+
+static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	int size;
+	sljit_uw push;
+
+	CHECK_ERROR();
+	check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	/* Push saved registers, temporary registers
+	   stmdb sp!, {..., lr} */
+	push = PUSH | (1 << 14);
+	if (temporaries >= 5)
+		push |= 1 << 11;
+	if (temporaries >= 4)
+		push |= 1 << 10;
+	if (saveds >= 5)
+		push |= 1 << 8;
+	if (saveds >= 4)
+		push |= 1 << 7;
+	if (saveds >= 3)
+		push |= 1 << 6;
+	if (saveds >= 2)
+		push |= 1 << 5;
+	if (saveds >= 1)
+		push |= 1 << 4;
+	EMIT_INSTRUCTION(push);
+
+	/* Stack must be aligned to 8 bytes: */
+	size = (1 + saveds) * sizeof(sljit_uw);
+	if (temporaries >= 4)
+		size += (temporaries - 3) * sizeof(sljit_uw);
+	local_size += size;
+	local_size = (local_size + 7) & ~7;
+	local_size -= size;
+	compiler->local_size = local_size;
+	if (local_size > 0)
+		FAIL_IF(emit_op(compiler, SLJIT_SUB, ALLOW_IMM, SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, local_size));
+
+	if (args >= 1)
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_SAVED_REG1, SLJIT_UNUSED, RM(SLJIT_TEMPORARY_REG1)));
+	if (args >= 2)
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_SAVED_REG2, SLJIT_UNUSED, RM(SLJIT_TEMPORARY_REG2)));
+	if (args >= 3)
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, SLJIT_SAVED_REG3, SLJIT_UNUSED, RM(SLJIT_TEMPORARY_REG3)));
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	int size;
+
+	CHECK_ERROR_VOID();
+	check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	size = (1 + saveds) * sizeof(sljit_uw);
+	if (temporaries >= 4)
+		size += (temporaries - 3) * sizeof(sljit_uw);
+	local_size += size;
+	local_size = (local_size + 7) & ~7;
+	local_size -= size;
+	compiler->local_size = local_size;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	sljit_uw pop;
+
+	CHECK_ERROR();
+	check_sljit_emit_return(compiler, op, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+	if (compiler->local_size > 0)
+		FAIL_IF(emit_op(compiler, SLJIT_ADD, ALLOW_IMM, SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, compiler->local_size));
+
+	pop = POP | (1 << 15);
+	/* Push saved registers, temporary registers
+	   ldmia sp!, {..., pc} */
+	if (compiler->temporaries >= 5)
+		pop |= 1 << 11;
+	if (compiler->temporaries >= 4)
+		pop |= 1 << 10;
+	if (compiler->saveds >= 5)
+		pop |= 1 << 8;
+	if (compiler->saveds >= 4)
+		pop |= 1 << 7;
+	if (compiler->saveds >= 3)
+		pop |= 1 << 6;
+	if (compiler->saveds >= 2)
+		pop |= 1 << 5;
+	if (compiler->saveds >= 1)
+		pop |= 1 << 4;
+
+	return push_inst(compiler, pop);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Operators                                                            */
+/* --------------------------------------------------------------------- */
+
+/* s/l - store/load (1 bit)
+   u/s - signed/unsigned (1 bit)
+   w/b/h/N - word/byte/half/NOT allowed (2 bit)
+   It contans 16 items, but not all are different. */
+
+static sljit_w data_transfer_insts[16] = {
+/* s u w */ 0xe5000000 /* str */,
+/* s u b */ 0xe5400000 /* strb */,
+/* s u h */ 0xe10000b0 /* strh */,
+/* s u N */ 0x00000000 /* not allowed */,
+/* s s w */ 0xe5000000 /* str */,
+/* s s b */ 0xe5400000 /* strb */,
+/* s s h */ 0xe10000b0 /* strh */,
+/* s s N */ 0x00000000 /* not allowed */,
+
+/* l u w */ 0xe5100000 /* ldr */,
+/* l u b */ 0xe5500000 /* ldrb */,
+/* l u h */ 0xe11000b0 /* ldrh */,
+/* l u N */ 0x00000000 /* not allowed */,
+/* l s w */ 0xe5100000 /* ldr */,
+/* l s b */ 0xe11000d0 /* ldrsb */,
+/* l s h */ 0xe11000f0 /* ldrsh */,
+/* l s N */ 0x00000000 /* not allowed */,
+};
+
+#define EMIT_DATA_TRANSFER(type, add, wb, target, base1, base2) \
+	(data_transfer_insts[(type) >> 4] | ((add) << 23) | ((wb) << 21) | (reg_map[target] << 12) | (reg_map[base1] << 16) | (base2))
+/* Normal ldr/str instruction.
+   Type2: ldrsb, ldrh, ldrsh */
+#define IS_TYPE1_TRANSFER(type) \
+	(data_transfer_insts[(type) >> 4] & 0x04000000)
+#define TYPE2_TRANSFER_IMM(imm) \
+	(((imm) & 0xf) | (((imm) & 0xf0) << 4) | (1 << 22))
+
+/* flags: */
+  /* Arguments are swapped. */
+#define ARGS_SWAPPED	0x01
+  /* Inverted immediate. */
+#define INV_IMM		0x02
+  /* Source and destination is register. */
+#define REG_DEST	0x04
+#define REG_SOURCE	0x08
+  /* One instruction is enough. */
+#define FAST_DEST	0x10
+  /* Multiple instructions are required. */
+#define SLOW_DEST	0x20
+/* SET_FLAGS must be (1 << 20) as it is also the value of S bit (can be used for optimization). */
+#define SET_FLAGS	(1 << 20)
+/* dst: reg
+   src1: reg
+   src2: reg or imm (if allowed)
+   SRC2_IMM must be (1 << 25) as it is also the value of I bit (can be used for optimization). */
+#define SRC2_IMM	(1 << 25)
+
+#define EMIT_DATA_PROCESS_INS_AND_RETURN(opcode) \
+	return push_inst(compiler, EMIT_DATA_PROCESS_INS(opcode, flags & SET_FLAGS, dst, src1, (src2 & SRC2_IMM) ? src2 : RM(src2)))
+
+#define EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(opcode, dst, src1, src2) \
+	return push_inst(compiler, EMIT_DATA_PROCESS_INS(opcode, flags & SET_FLAGS, dst, src1, src2))
+
+#define EMIT_SHIFT_INS_AND_RETURN(opcode) \
+	SLJIT_ASSERT(!(flags & INV_IMM) && !(src2 & SRC2_IMM)); \
+	if (compiler->shift_imm != 0x20) { \
+		SLJIT_ASSERT(src1 == TMP_REG1); \
+		SLJIT_ASSERT(!(flags & ARGS_SWAPPED)); \
+		if (compiler->shift_imm != 0) \
+			return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, flags & SET_FLAGS, dst, SLJIT_UNUSED, (compiler->shift_imm << 7) | (opcode << 5) | reg_map[src2])); \
+		return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, flags & SET_FLAGS, dst, SLJIT_UNUSED, reg_map[src2])); \
+	} \
+	return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, flags & SET_FLAGS, dst, SLJIT_UNUSED, (reg_map[(flags & ARGS_SWAPPED) ? src1 : src2] << 8) | (opcode << 5) | 0x10 | ((flags & ARGS_SWAPPED) ? reg_map[src2] : reg_map[src1])));
+
+static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags,
+	int dst, int src1, int src2)
+{
+	sljit_w mul_inst;
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_ADD:
+		SLJIT_ASSERT(!(flags & INV_IMM));
+		EMIT_DATA_PROCESS_INS_AND_RETURN(ADD_DP);
+
+	case SLJIT_ADDC:
+		SLJIT_ASSERT(!(flags & INV_IMM));
+		EMIT_DATA_PROCESS_INS_AND_RETURN(ADC_DP);
+
+	case SLJIT_SUB:
+		SLJIT_ASSERT(!(flags & INV_IMM));
+		if (!(flags & ARGS_SWAPPED))
+			EMIT_DATA_PROCESS_INS_AND_RETURN(SUB_DP);
+		EMIT_DATA_PROCESS_INS_AND_RETURN(RSB_DP);
+
+	case SLJIT_SUBC:
+		SLJIT_ASSERT(!(flags & INV_IMM));
+		if (!(flags & ARGS_SWAPPED))
+			EMIT_DATA_PROCESS_INS_AND_RETURN(SBC_DP);
+		EMIT_DATA_PROCESS_INS_AND_RETURN(RSC_DP);
+
+	case SLJIT_MUL:
+		SLJIT_ASSERT(!(flags & INV_IMM));
+		SLJIT_ASSERT(!(src2 & SRC2_IMM));
+		if (SLJIT_UNLIKELY(op & SLJIT_SET_O))
+			mul_inst = SMULL | (reg_map[TMP_REG3] << 16) | (reg_map[dst] << 12);
+		else
+			mul_inst = MUL | (reg_map[dst] << 16);
+
+		if (dst != src2)
+			FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src1] << 8) | reg_map[src2]));
+		else if (dst != src1)
+			FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src2] << 8) | reg_map[src1]));
+		else {
+			/* Rm and Rd must not be the same register. */
+			SLJIT_ASSERT(dst != TMP_REG1);
+			FAIL_IF(push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, reg_map[src2])));
+			FAIL_IF(push_inst(compiler, mul_inst | (reg_map[src2] << 8) | reg_map[TMP_REG1]));
+		}
+
+		if (!(op & SLJIT_SET_O))
+			return SLJIT_SUCCESS;
+
+		/* We need to use TMP_REG3. */
+		compiler->cache_arg = 0;
+		compiler->cache_argw = 0;
+		/* cmp TMP_REG2, dst asr #31. */
+		return push_inst(compiler, EMIT_DATA_PROCESS_INS(CMP_DP, SET_FLAGS, SLJIT_UNUSED, TMP_REG3, RM(dst) | 0xfc0));
+
+	case SLJIT_AND:
+		if (!(flags & INV_IMM))
+			EMIT_DATA_PROCESS_INS_AND_RETURN(AND_DP);
+		EMIT_DATA_PROCESS_INS_AND_RETURN(BIC_DP);
+
+	case SLJIT_OR:
+		SLJIT_ASSERT(!(flags & INV_IMM));
+		EMIT_DATA_PROCESS_INS_AND_RETURN(ORR_DP);
+
+	case SLJIT_XOR:
+		SLJIT_ASSERT(!(flags & INV_IMM));
+		EMIT_DATA_PROCESS_INS_AND_RETURN(EOR_DP);
+
+	case SLJIT_SHL:
+		EMIT_SHIFT_INS_AND_RETURN(0);
+
+	case SLJIT_LSHR:
+		EMIT_SHIFT_INS_AND_RETURN(1);
+
+	case SLJIT_ASHR:
+		EMIT_SHIFT_INS_AND_RETURN(2);
+
+	case SLJIT_MOV:
+		SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+		if (dst != src2) {
+			if (src2 & SRC2_IMM) {
+				if (flags & INV_IMM)
+					EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
+				EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
+			}
+			EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, reg_map[src2]);
+		}
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UB:
+	case SLJIT_MOV_SB:
+		SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+		if ((flags & (REG_DEST | REG_SOURCE)) == (REG_DEST | REG_SOURCE)) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+			if (op == SLJIT_MOV_UB)
+				return push_inst(compiler, EMIT_DATA_PROCESS_INS(AND_DP, 0, dst, src2, SRC2_IMM | 0xff));
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (24 << 7) | reg_map[src2]));
+			return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (24 << 7) | (op == SLJIT_MOV_UB ? 0x20 : 0x40) | reg_map[dst]));
+#else
+			return push_inst(compiler, (op == SLJIT_MOV_UB ? UXTB : SXTB) | RD(dst) | RM(src2));
+#endif
+		}
+		else if (dst != src2) {
+			SLJIT_ASSERT(src2 & SRC2_IMM);
+			if (flags & INV_IMM)
+				EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
+			EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
+		}
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UH:
+	case SLJIT_MOV_SH:
+		SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & ARGS_SWAPPED));
+		if ((flags & (REG_DEST | REG_SOURCE)) == (REG_DEST | REG_SOURCE)) {
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (16 << 7) | reg_map[src2]));
+			return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, (16 << 7) | (op == SLJIT_MOV_UH ? 0x20 : 0x40) | reg_map[dst]));
+#else
+			return push_inst(compiler, (op == SLJIT_MOV_UH ? UXTH : SXTH) | RD(dst) | RM(src2));
+#endif
+		}
+		else if (dst != src2) {
+			SLJIT_ASSERT(src2 & SRC2_IMM);
+			if (flags & INV_IMM)
+				EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
+			EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
+		}
+		return SLJIT_SUCCESS;
+
+	case SLJIT_NOT:
+		if (src2 & SRC2_IMM) {
+			if (flags & INV_IMM)
+				EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MOV_DP, dst, SLJIT_UNUSED, src2);
+			EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, src2);
+		}
+		EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(MVN_DP, dst, SLJIT_UNUSED, RM(src2));
+
+	case SLJIT_CLZ:
+		SLJIT_ASSERT(!(flags & INV_IMM));
+		SLJIT_ASSERT(!(src2 & SRC2_IMM));
+		FAIL_IF(push_inst(compiler, CLZ | RD(dst) | RM(src2)));
+		if (flags & SET_FLAGS)
+			EMIT_FULL_DATA_PROCESS_INS_AND_RETURN(CMP_DP, SLJIT_UNUSED, dst, SRC2_IMM);
+		return SLJIT_SUCCESS;
+	}
+	SLJIT_ASSERT_STOP();
+	return SLJIT_SUCCESS;
+}
+
+#undef EMIT_DATA_PROCESS_INS_AND_RETURN
+#undef EMIT_FULL_DATA_PROCESS_INS_AND_RETURN
+#undef EMIT_SHIFT_INS_AND_RETURN
+
+/* Tests whether the immediate can be stored in the 12 bit imm field.
+   Returns with 0 if not possible. */
+static sljit_uw get_immediate(sljit_uw imm)
+{
+	int rol;
+
+	if (imm <= 0xff)
+		return SRC2_IMM | imm;
+
+	if (!(imm & 0xff000000)) {
+		imm <<= 8;
+		rol = 8;
+	}
+	else {
+		imm = (imm << 24) | (imm >> 8);
+		rol = 0;
+	}
+
+	if (!(imm & 0xff000000)) {
+		imm <<= 8;
+		rol += 4;
+	}
+
+	if (!(imm & 0xf0000000)) {
+		imm <<= 4;
+		rol += 2;
+	}
+
+	if (!(imm & 0xc0000000)) {
+		imm <<= 2;
+		rol += 1;
+	}
+
+	if (!(imm & 0x00ffffff))
+		return SRC2_IMM | (imm >> 24) | (rol << 8);
+	else
+		return 0;
+}
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+static int generate_int(struct sljit_compiler *compiler, int reg, sljit_uw imm, int positive)
+{
+	sljit_uw mask;
+	sljit_uw imm1;
+	sljit_uw imm2;
+	int rol;
+
+	/* Step1: Search a zero byte (8 continous zero bit). */
+	mask = 0xff000000;
+	rol = 8;
+	while(1) {
+		if (!(imm & mask)) {
+			/* Rol imm by rol. */
+			imm = (imm << rol) | (imm >> (32 - rol));
+			/* Calculate arm rol. */
+			rol = 4 + (rol >> 1);
+			break;
+		}
+		rol += 2;
+		mask >>= 2;
+		if (mask & 0x3) {
+			/* rol by 8. */
+			imm = (imm << 8) | (imm >> 24);
+			mask = 0xff00;
+			rol = 24;
+			while (1) {
+				if (!(imm & mask)) {
+					/* Rol imm by rol. */
+					imm = (imm << rol) | (imm >> (32 - rol));
+					/* Calculate arm rol. */
+					rol = (rol >> 1) - 8;
+					break;
+				}
+				rol += 2;
+				mask >>= 2;
+				if (mask & 0x3)
+					return 0;
+			}
+			break;
+		}
+	}
+
+	/* The low 8 bit must be zero. */
+	SLJIT_ASSERT(!(imm & 0xff));
+
+	if (!(imm & 0xff000000)) {
+		imm1 = SRC2_IMM | ((imm >> 16) & 0xff) | (((rol + 4) & 0xf) << 8);
+		imm2 = SRC2_IMM | ((imm >> 8) & 0xff) | (((rol + 8) & 0xf) << 8);
+	}
+	else if (imm & 0xc0000000) {
+		imm1 = SRC2_IMM | ((imm >> 24) & 0xff) | ((rol & 0xf) << 8);
+		imm <<= 8;
+		rol += 4;
+
+		if (!(imm & 0xff000000)) {
+			imm <<= 8;
+			rol += 4;
+		}
+
+		if (!(imm & 0xf0000000)) {
+			imm <<= 4;
+			rol += 2;
+		}
+
+		if (!(imm & 0xc0000000)) {
+			imm <<= 2;
+			rol += 1;
+		}
+
+		if (!(imm & 0x00ffffff))
+			imm2 = SRC2_IMM | (imm >> 24) | ((rol & 0xf) << 8);
+		else
+			return 0;
+	}
+	else {
+		if (!(imm & 0xf0000000)) {
+			imm <<= 4;
+			rol += 2;
+		}
+
+		if (!(imm & 0xc0000000)) {
+			imm <<= 2;
+			rol += 1;
+		}
+
+		imm1 = SRC2_IMM | ((imm >> 24) & 0xff) | ((rol & 0xf) << 8);
+		imm <<= 8;
+		rol += 4;
+
+		if (!(imm & 0xf0000000)) {
+			imm <<= 4;
+			rol += 2;
+		}
+
+		if (!(imm & 0xc0000000)) {
+			imm <<= 2;
+			rol += 1;
+		}
+
+		if (!(imm & 0x00ffffff))
+			imm2 = SRC2_IMM | (imm >> 24) | ((rol & 0xf) << 8);
+		else
+			return 0;
+	}
+
+	EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(positive ? MOV_DP : MVN_DP, 0, reg, SLJIT_UNUSED, imm1));
+	EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(positive ? ORR_DP : BIC_DP, 0, reg, reg, imm2));
+	return 1;
+}
+#endif
+
+static int load_immediate(struct sljit_compiler *compiler, int reg, sljit_uw imm)
+{
+	sljit_uw tmp;
+
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+	if (!(imm & ~0xffff))
+		return push_inst(compiler, MOVW | RD(reg) | ((imm << 4) & 0xf0000) | (imm & 0xfff));
+#endif
+
+	/* Create imm by 1 inst. */
+	tmp = get_immediate(imm);
+	if (tmp) {
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, tmp));
+		return SLJIT_SUCCESS;
+	}
+
+	tmp = get_immediate(~imm);
+	if (tmp) {
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MVN_DP, 0, reg, SLJIT_UNUSED, tmp));
+		return SLJIT_SUCCESS;
+	}
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	/* Create imm by 2 inst. */
+	FAIL_IF(generate_int(compiler, reg, imm, 1));
+	FAIL_IF(generate_int(compiler, reg, ~imm, 0));
+
+	/* Load integer. */
+	return push_inst_with_literal(compiler, EMIT_DATA_TRANSFER(WORD_DATA | LOAD_DATA, 1, 0, reg, TMP_PC, 0), imm);
+#else
+	return emit_imm(compiler, reg, imm);
+#endif
+}
+
+/* Can perform an operation using at most 1 instruction. */
+static int getput_arg_fast(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw)
+{
+	sljit_uw imm;
+
+	if (arg & SLJIT_IMM) {
+		imm = get_immediate(argw);
+		if (imm) {
+			if (inp_flags & ARG_TEST)
+				return 1;
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, imm));
+			return -1;
+		}
+		imm = get_immediate(~argw);
+		if (imm) {
+			if (inp_flags & ARG_TEST)
+				return 1;
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MVN_DP, 0, reg, SLJIT_UNUSED, imm));
+			return -1;
+		}
+		return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
+	}
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	/* Fast loads/stores. */
+	if (arg & 0xf) {
+		if (!(arg & 0xf0)) {
+			if (IS_TYPE1_TRANSFER(inp_flags)) {
+				if (argw >= 0 && argw <= 0xfff) {
+					if (inp_flags & ARG_TEST)
+						return 1;
+					EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, argw));
+					return -1;
+				}
+				if (argw < 0 && argw >= -0xfff) {
+					if (inp_flags & ARG_TEST)
+						return 1;
+					EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 0, inp_flags & WRITE_BACK, reg, arg & 0xf, -argw));
+					return -1;
+				}
+			}
+			else {
+				if (argw >= 0 && argw <= 0xff) {
+					if (inp_flags & ARG_TEST)
+						return 1;
+					EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, TYPE2_TRANSFER_IMM(argw)));
+					return -1;
+				}
+				if (argw < 0 && argw >= -0xff) {
+					if (inp_flags & ARG_TEST)
+						return 1;
+					argw = -argw;
+					EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 0, inp_flags & WRITE_BACK, reg, arg & 0xf, TYPE2_TRANSFER_IMM(argw)));
+					return -1;
+				}
+			}
+		}
+		else if ((argw & 0x3) == 0 || IS_TYPE1_TRANSFER(inp_flags)) {
+			if (inp_flags & ARG_TEST)
+				return 1;
+			EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf,
+				RM((arg >> 4) & 0xf) | (IS_TYPE1_TRANSFER(inp_flags) ? SRC2_IMM : 0) | ((argw & 0x3) << 7)));
+			return -1;
+		}
+	}
+
+	return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
+}
+
+/* See getput_arg below.
+   Note: can_cache is called only for binary operators. Those
+   operators always uses word arguments without write back. */
+static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
+{
+	/* Immediate caching is not supported as it would be an operation on constant arguments. */
+	if (arg & SLJIT_IMM)
+		return 0;
+
+	/* Always a simple operation. */
+	if (arg & 0xf0)
+		return 0;
+
+	if (!(arg & 0xf)) {
+		/* Immediate access. */
+		if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= 0xfff || (sljit_uw)next_argw - (sljit_uw)argw <= 0xfff))
+			return 1;
+		return 0;
+	}
+
+	if (argw <= 0xfffff && argw >= -0xfffff)
+		return 0;
+
+	if (argw == next_argw && (next_arg & SLJIT_MEM))
+		return 1;
+
+	if (arg == next_arg && ((sljit_uw)argw - (sljit_uw)next_argw <= 0xfff || (sljit_uw)next_argw - (sljit_uw)argw <= 0xfff))
+		return 1;
+
+	return 0;
+}
+
+#define GETPUT_ARG_DATA_TRANSFER(add, wb, target, base, imm) \
+	if (max_delta & 0xf00) \
+		FAIL_IF(push_inst(compiler, EMIT_DATA_TRANSFER(inp_flags, add, wb, target, base, imm))); \
+	else \
+		FAIL_IF(push_inst(compiler, EMIT_DATA_TRANSFER(inp_flags, add, wb, target, base, TYPE2_TRANSFER_IMM(imm))));
+
+#define TEST_WRITE_BACK() \
+	if (inp_flags & WRITE_BACK) { \
+		tmp_r = arg & 0xf; \
+		if (reg == tmp_r) { \
+			/* This can only happen for stores */ \
+			/* since ldr reg, [reg, ...]! has no meaning */ \
+			SLJIT_ASSERT(!(inp_flags & LOAD_DATA)); \
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(reg))); \
+			reg = TMP_REG3; \
+		} \
+	}
+
+/* Emit the necessary instructions. See can_cache above. */
+static int getput_arg(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
+{
+	int tmp_r;
+	sljit_w max_delta;
+	sljit_w sign;
+
+	if (arg & SLJIT_IMM) {
+		SLJIT_ASSERT(inp_flags & LOAD_DATA);
+		return load_immediate(compiler, reg, argw);
+	}
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	tmp_r = (inp_flags & LOAD_DATA) ? reg : TMP_REG3;
+	max_delta = IS_TYPE1_TRANSFER(inp_flags) ? 0xfff : 0xff;
+
+	if ((arg & 0xf) == SLJIT_UNUSED) {
+		/* Write back is not used. */
+		if ((compiler->cache_arg & SLJIT_IMM) && (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= (sljit_uw)max_delta || ((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= (sljit_uw)max_delta)) {
+			if (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= (sljit_uw)max_delta) {
+				sign = 1;
+				argw = argw - compiler->cache_argw;
+			}
+			else {
+				sign = 0;
+				argw = compiler->cache_argw - argw;
+			}
+
+			if (max_delta & 0xf00) {
+				EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, sign, 0, reg, TMP_REG3, argw));
+			}
+			else {
+				EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, sign, 0, reg, TMP_REG3, TYPE2_TRANSFER_IMM(argw)));
+			}
+			return SLJIT_SUCCESS;
+		}
+
+		/* With write back, we can create some sophisticated loads, but
+		   it is hard to decide whether we should convert downward (0s) or upward (1s). */
+		if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= (sljit_uw)max_delta || (sljit_uw)next_argw - (sljit_uw)argw <= (sljit_uw)max_delta)) {
+			SLJIT_ASSERT(inp_flags & LOAD_DATA);
+
+			compiler->cache_arg = SLJIT_IMM;
+			compiler->cache_argw = argw;
+			tmp_r = TMP_REG3;
+		}
+
+		FAIL_IF(load_immediate(compiler, tmp_r, argw));
+		GETPUT_ARG_DATA_TRANSFER(1, 0, reg, tmp_r, 0);
+		return SLJIT_SUCCESS;
+	}
+
+	/* Extended imm addressing for [reg+imm] format. */
+	sign = (max_delta << 8) | 0xff;
+	if (!(arg & 0xf0) && argw <= sign && argw >= -sign) {
+		TEST_WRITE_BACK();
+		if (argw >= 0) {
+			sign = 1;
+		}
+		else {
+			sign = 0;
+			argw = -argw;
+		}
+
+		/* Optimization: add is 0x4, sub is 0x2. Sign is 1 for add and 0 for sub. */
+		if (max_delta & 0xf00)
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(SUB_DP << sign, 0, tmp_r, arg & 0xf, SRC2_IMM | (argw >> 12) | 0xa00));
+		else
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(SUB_DP << sign, 0, tmp_r, arg & 0xf, SRC2_IMM | (argw >> 8) | 0xc00));
+
+		argw &= max_delta;
+		GETPUT_ARG_DATA_TRANSFER(sign, inp_flags & WRITE_BACK, reg, tmp_r, argw);
+		return SLJIT_SUCCESS;
+	}
+
+	if (arg & 0xf0) {
+		SLJIT_ASSERT((argw & 0x3) && !(max_delta & 0xf00));
+		if (inp_flags & WRITE_BACK)
+			tmp_r = arg & 0xf;
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, tmp_r, arg & 0xf, RM((arg >> 4) & 0xf) | ((argw & 0x3) << 7)));
+		EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, 0, reg, tmp_r, TYPE2_TRANSFER_IMM(0)));
+		return SLJIT_SUCCESS;
+	}
+
+	if (compiler->cache_arg == arg && ((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= (sljit_uw)max_delta) {
+		SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
+		argw = argw - compiler->cache_argw;
+		GETPUT_ARG_DATA_TRANSFER(1, 0, reg, TMP_REG3, argw);
+		return SLJIT_SUCCESS;
+	}
+
+	if (compiler->cache_arg == arg && ((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= (sljit_uw)max_delta) {
+		SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
+		argw = compiler->cache_argw - argw;
+		GETPUT_ARG_DATA_TRANSFER(0, 0, reg, TMP_REG3, argw);
+		return SLJIT_SUCCESS;
+	}
+
+	if ((compiler->cache_arg & SLJIT_IMM) && compiler->cache_argw == argw) {
+		TEST_WRITE_BACK();
+		EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, RM(TMP_REG3) | (max_delta & 0xf00 ? SRC2_IMM : 0)));
+		return SLJIT_SUCCESS;
+	}
+
+	if (argw == next_argw && (next_arg & SLJIT_MEM)) {
+		SLJIT_ASSERT(inp_flags & LOAD_DATA);
+		FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+
+		compiler->cache_arg = SLJIT_IMM;
+		compiler->cache_argw = argw;
+
+		TEST_WRITE_BACK();
+		EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, RM(TMP_REG3) | (max_delta & 0xf00 ? SRC2_IMM : 0)));
+		return SLJIT_SUCCESS;
+	}
+
+	if (arg == next_arg && !(inp_flags & WRITE_BACK) && ((sljit_uw)argw - (sljit_uw)next_argw <= (sljit_uw)max_delta || (sljit_uw)next_argw - (sljit_uw)argw <= (sljit_uw)max_delta)) {
+		SLJIT_ASSERT(inp_flags & LOAD_DATA);
+		FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG3, TMP_REG3, reg_map[arg & 0xf]));
+
+		compiler->cache_arg = arg;
+		compiler->cache_argw = argw;
+
+		GETPUT_ARG_DATA_TRANSFER(1, 0, reg, TMP_REG3, 0);
+		return SLJIT_SUCCESS;
+	}
+
+	if ((arg & 0xf) == tmp_r) {
+		compiler->cache_arg = SLJIT_IMM;
+		compiler->cache_argw = argw;
+		tmp_r = TMP_REG3;
+	}
+
+	FAIL_IF(load_immediate(compiler, tmp_r, argw));
+	EMIT_INSTRUCTION(EMIT_DATA_TRANSFER(inp_flags, 1, inp_flags & WRITE_BACK, reg, arg & 0xf, reg_map[tmp_r] | (max_delta & 0xf00 ? SRC2_IMM : 0)));
+	return SLJIT_SUCCESS;
+}
+
+static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	/* arg1 goes to TMP_REG1 or src reg
+	   arg2 goes to TMP_REG2, imm or src reg
+	   TMP_REG3 can be used for caching
+	   result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
+
+	/* We prefers register and simple consts. */
+	int dst_r;
+	int src1_r;
+	int src2_r = 0;
+	int sugg_src2_r = TMP_REG2;
+	int flags = GET_FLAGS(op) ? SET_FLAGS : 0;
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	/* Destination check. */
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REG3) {
+		dst_r = dst;
+		flags |= REG_DEST;
+		if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
+			sugg_src2_r = dst_r;
+	}
+	else if (dst == SLJIT_UNUSED) {
+		if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
+			return SLJIT_SUCCESS;
+		dst_r = TMP_REG2;
+	}
+	else {
+		SLJIT_ASSERT(dst & SLJIT_MEM);
+		if (getput_arg_fast(compiler, inp_flags | ARG_TEST, TMP_REG2, dst, dstw)) {
+			flags |= FAST_DEST;
+			dst_r = TMP_REG2;
+		}
+		else {
+			flags |= SLOW_DEST;
+			dst_r = 0;
+		}
+	}
+
+	/* Source 1. */
+	if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= TMP_REG3)
+		src1_r = src1;
+	else if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) {
+		flags |= ARGS_SWAPPED;
+		src1_r = src2;
+		src2 = src1;
+		src2w = src1w;
+	}
+	else do { /* do { } while(0) is used because of breaks. */
+		src1_r = 0;
+		if ((inp_flags & ALLOW_ANY_IMM) && (src1 & SLJIT_IMM)) {
+			/* The second check will generate a hit. */
+			src2_r = get_immediate(src1w);
+			if (src2_r) {
+				flags |= ARGS_SWAPPED;
+				src1 = src2;
+				src1w = src2w;
+				break;
+			}
+			if (inp_flags & ALLOW_INV_IMM) {
+				src2_r = get_immediate(~src1w);
+				if (src2_r) {
+					flags |= ARGS_SWAPPED | INV_IMM;
+					src1 = src2;
+					src1w = src2w;
+					break;
+				}
+			}
+			if (GET_OPCODE(op) == SLJIT_ADD) {
+				src2_r = get_immediate(-src1w);
+				if (src2_r) {
+					/* Note: ARGS_SWAPPED is intentionally not applied! */
+					src1 = src2;
+					src1w = src2w;
+					op = SLJIT_SUB | GET_ALL_FLAGS(op);
+					break;
+				}
+			}
+		}
+
+		if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w)) {
+			FAIL_IF(compiler->error);
+			src1_r = TMP_REG1;
+		}
+	} while (0);
+
+	/* Source 2. */
+	if (src2_r == 0) {
+		if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) {
+			src2_r = src2;
+			flags |= REG_SOURCE;
+			if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
+				dst_r = src2_r;
+		}
+		else do { /* do { } while(0) is used because of breaks. */
+			if ((inp_flags & ALLOW_ANY_IMM) && (src2 & SLJIT_IMM)) {
+				src2_r = get_immediate(src2w);
+				if (src2_r)
+					break;
+				if (inp_flags & ALLOW_INV_IMM) {
+					src2_r = get_immediate(~src2w);
+					if (src2_r) {
+						flags |= INV_IMM;
+						break;
+					}
+				}
+				if (GET_OPCODE(op) == SLJIT_ADD) {
+					src2_r = get_immediate(-src2w);
+					if (src2_r) {
+						op = SLJIT_SUB | GET_ALL_FLAGS(op);
+						flags &= ~ARGS_SWAPPED;
+						break;
+					}
+				}
+				if (GET_OPCODE(op) == SLJIT_SUB && !(flags & ARGS_SWAPPED)) {
+					src2_r = get_immediate(-src2w);
+					if (src2_r) {
+						op = SLJIT_ADD | GET_ALL_FLAGS(op);
+						flags &= ~ARGS_SWAPPED;
+						break;
+					}
+				}
+			}
+
+			/* src2_r is 0. */
+			if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w)) {
+				FAIL_IF(compiler->error);
+				src2_r = sugg_src2_r;
+			}
+		} while (0);
+	}
+
+	/* src1_r, src2_r and dst_r can be zero (=unprocessed) or non-zero.
+	   If they are zero, they must not be registers. */
+	if (src1_r == 0 && src2_r == 0 && dst_r == 0) {
+		if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
+			SLJIT_ASSERT(!(flags & ARGS_SWAPPED));
+			flags |= ARGS_SWAPPED;
+			FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src2, src2w, src1, src1w));
+			FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src1, src1w, dst, dstw));
+		}
+		else {
+			FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
+			FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
+		}
+		src1_r = TMP_REG1;
+		src2_r = TMP_REG2;
+	}
+	else if (src1_r == 0 && src2_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
+		src1_r = TMP_REG1;
+	}
+	else if (src1_r == 0 && dst_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
+		src1_r = TMP_REG1;
+	}
+	else if (src2_r == 0 && dst_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
+		src2_r = sugg_src2_r;
+	}
+
+	if (dst_r == 0)
+		dst_r = TMP_REG2;
+
+	if (src1_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, 0, 0));
+		src1_r = TMP_REG1;
+	}
+
+	if (src2_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, 0, 0));
+		src2_r = sugg_src2_r;
+	}
+
+	FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
+
+	if (flags & (FAST_DEST | SLOW_DEST)) {
+		if (flags & FAST_DEST)
+			FAIL_IF(getput_arg_fast(compiler, inp_flags, dst_r, dst, dstw));
+		else
+			FAIL_IF(getput_arg(compiler, inp_flags, dst_r, dst, dstw, 0, 0));
+	}
+	return SLJIT_SUCCESS;
+}
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__GNUC__)
+extern unsigned int __aeabi_uidivmod(unsigned numerator, unsigned denominator);
+extern unsigned int __aeabi_idivmod(unsigned numerator, unsigned denominator);
+#else
+#error "Software divmod functions are needed"
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op0(compiler, op);
+
+	op = GET_OPCODE(op);
+	switch (op) {
+	case SLJIT_BREAKPOINT:
+		EMIT_INSTRUCTION(BKPT);
+		break;
+	case SLJIT_NOP:
+		EMIT_INSTRUCTION(NOP);
+		break;
+	case SLJIT_UMUL:
+	case SLJIT_SMUL:
+#if (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
+		return push_inst(compiler, (op == SLJIT_UMUL ? UMULL : SMULL)
+			| (reg_map[SLJIT_TEMPORARY_REG2] << 16)
+			| (reg_map[SLJIT_TEMPORARY_REG1] << 12)
+			| (reg_map[SLJIT_TEMPORARY_REG1] << 8)
+			| reg_map[SLJIT_TEMPORARY_REG2]);
+#else
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, RM(SLJIT_TEMPORARY_REG2)));
+		return push_inst(compiler, (op == SLJIT_UMUL ? UMULL : SMULL)
+			| (reg_map[SLJIT_TEMPORARY_REG2] << 16)
+			| (reg_map[SLJIT_TEMPORARY_REG1] << 12)
+			| (reg_map[SLJIT_TEMPORARY_REG1] << 8)
+			| reg_map[TMP_REG1]);
+#endif
+	case SLJIT_UDIV:
+	case SLJIT_SDIV:
+		if (compiler->temporaries >= 3)
+			EMIT_INSTRUCTION(0xe52d2008 /* str r2, [sp, #-8]! */);
+#if defined(__GNUC__)
+		FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
+			(op == SLJIT_UDIV ? SLJIT_FUNC_OFFSET(__aeabi_uidivmod) : SLJIT_FUNC_OFFSET(__aeabi_idivmod))));
+#else
+#error "Software divmod functions are needed"
+#endif
+		if (compiler->temporaries >= 3)
+			return push_inst(compiler, 0xe49d2008 /* ldr r2, [sp], #8 */);
+		return SLJIT_SUCCESS;
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_MOV:
+	case SLJIT_MOV_UI:
+	case SLJIT_MOV_SI:
+		return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOV_UB:
+		return emit_op(compiler, SLJIT_MOV_UB, ALLOW_ANY_IMM | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
+
+	case SLJIT_MOV_SB:
+		return emit_op(compiler, SLJIT_MOV_SB, ALLOW_ANY_IMM | SIGNED_DATA | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
+
+	case SLJIT_MOV_UH:
+		return emit_op(compiler, SLJIT_MOV_UH, ALLOW_ANY_IMM | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
+
+	case SLJIT_MOV_SH:
+		return emit_op(compiler, SLJIT_MOV_SH, ALLOW_ANY_IMM | SIGNED_DATA | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
+
+	case SLJIT_MOVU:
+	case SLJIT_MOVU_UI:
+	case SLJIT_MOVU_SI:
+		return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOVU_UB:
+		return emit_op(compiler, SLJIT_MOV_UB, ALLOW_ANY_IMM | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
+
+	case SLJIT_MOVU_SB:
+		return emit_op(compiler, SLJIT_MOV_SB, ALLOW_ANY_IMM | SIGNED_DATA | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
+
+	case SLJIT_MOVU_UH:
+		return emit_op(compiler, SLJIT_MOV_UH, ALLOW_ANY_IMM | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
+
+	case SLJIT_MOVU_SH:
+		return emit_op(compiler, SLJIT_MOV_SH, ALLOW_ANY_IMM | SIGNED_DATA | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
+
+	case SLJIT_NOT:
+		return emit_op(compiler, op, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_NEG:
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+		compiler->skip_checks = 1;
+#endif
+		return sljit_emit_op2(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), dst, dstw, SLJIT_IMM, 0, src, srcw);
+
+	case SLJIT_CLZ:
+		return emit_op(compiler, op, 0, dst, dstw, TMP_REG1, 0, src, srcw);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src1, src1w);
+	ADJUST_LOCAL_OFFSET(src2, src2w);
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_ADD:
+	case SLJIT_ADDC:
+	case SLJIT_SUB:
+	case SLJIT_SUBC:
+	case SLJIT_OR:
+	case SLJIT_XOR:
+		return emit_op(compiler, op, ALLOW_IMM, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_MUL:
+		return emit_op(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_AND:
+		return emit_op(compiler, op, ALLOW_ANY_IMM, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_SHL:
+	case SLJIT_LSHR:
+	case SLJIT_ASHR:
+		if (src2 & SLJIT_IMM) {
+			compiler->shift_imm = src2w & 0x1f;
+			return emit_op(compiler, op, 0, dst, dstw, TMP_REG1, 0, src1, src1w);
+		}
+		else {
+			compiler->shift_imm = 0x20;
+			return emit_op(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w);
+		}
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
+{
+	check_sljit_get_register_index(reg);
+	return reg_map[reg];
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
+	void *instruction, int size)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op_custom(compiler, instruction, size);
+	SLJIT_ASSERT(size == 4);
+
+	return push_inst(compiler, *(sljit_uw*)instruction);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Floating point operators                                             */
+/* --------------------------------------------------------------------- */
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+
+/* 0 - no fpu
+   1 - vfp */
+static int arm_fpu_type = -1;
+
+static void init_compiler()
+{
+	if (arm_fpu_type != -1)
+		return;
+
+	/* TODO: Only the OS can help to determine the correct fpu type. */
+	arm_fpu_type = 1;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
+{
+	if (arm_fpu_type == -1)
+		init_compiler();
+	return arm_fpu_type;
+}
+
+#else
+
+#define arm_fpu_type 1
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
+{
+	/* Always available. */
+	return 1;
+}
+
+#endif
+
+#define EMIT_FPU_DATA_TRANSFER(add, load, base, freg, offs) \
+	(VSTR | ((add) << 23) | ((load) << 20) | (reg_map[base] << 16) | (freg << 12) | (offs))
+#define EMIT_FPU_OPERATION(opcode, dst, src1, src2) \
+	((opcode) | ((dst) << 12) | (src1) | ((src2) << 16))
+
+static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw)
+{
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	/* Fast loads and stores. */
+	if ((arg & 0xf) && !(arg & 0xf0) && (argw & 0x3) == 0) {
+		if (argw >= 0 && argw <= 0x3ff) {
+			EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, arg & 0xf, fpu_reg, argw >> 2));
+			return SLJIT_SUCCESS;
+		}
+		if (argw < 0 && argw >= -0x3ff) {
+			EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(0, load, arg & 0xf, fpu_reg, (-argw) >> 2));
+			return SLJIT_SUCCESS;
+		}
+		if (argw >= 0 && argw <= 0x3ffff) {
+			SLJIT_ASSERT(get_immediate(argw & 0x3fc00));
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG1, arg & 0xf, get_immediate(argw & 0x3fc00)));
+			argw &= 0x3ff;
+			EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, TMP_REG1, fpu_reg, argw >> 2));
+			return SLJIT_SUCCESS;
+		}
+		if (argw < 0 && argw >= -0x3ffff) {
+			argw = -argw;
+			SLJIT_ASSERT(get_immediate(argw & 0x3fc00));
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(SUB_DP, 0, TMP_REG1, arg & 0xf, get_immediate(argw & 0x3fc00)));
+			argw &= 0x3ff;
+			EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(0, load, TMP_REG1, fpu_reg, argw >> 2));
+			return SLJIT_SUCCESS;
+		}
+	}
+
+	if (arg & 0xf0) {
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG1, arg & 0xf, RM((arg >> 4) & 0xf) | ((argw & 0x3) << 7)));
+		EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, TMP_REG1, fpu_reg, 0));
+		return SLJIT_SUCCESS;
+	}
+
+	if (compiler->cache_arg == arg && ((argw - compiler->cache_argw) & 0x3) == 0) {
+		if (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= 0x3ff) {
+			EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, TMP_REG3, fpu_reg, (argw - compiler->cache_argw) >> 2));
+			return SLJIT_SUCCESS;
+		}
+		if (((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= 0x3ff) {
+			EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(0, load, TMP_REG3, fpu_reg, (compiler->cache_argw - argw) >> 2));
+			return SLJIT_SUCCESS;
+		}
+	}
+
+	compiler->cache_arg = arg;
+	compiler->cache_argw = argw;
+	if (arg & 0xf) {
+		FAIL_IF(load_immediate(compiler, TMP_REG1, argw));
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(ADD_DP, 0, TMP_REG3, arg & 0xf, reg_map[TMP_REG1]));
+	}
+	else
+		FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+
+	EMIT_INSTRUCTION(EMIT_FPU_DATA_TRANSFER(1, load, TMP_REG3, fpu_reg, 0));
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	int dst_freg;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	if (GET_OPCODE(op) == SLJIT_FCMP) {
+		if (dst > SLJIT_FLOAT_REG4) {
+			FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw));
+			dst = TMP_FREG1;
+		}
+		if (src > SLJIT_FLOAT_REG4) {
+			FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw));
+			src = TMP_FREG2;
+		}
+		EMIT_INSTRUCTION(VCMP_F64 | (dst << 12) | src);
+		EMIT_INSTRUCTION(VMRS);
+		return SLJIT_SUCCESS;
+	}
+
+	dst_freg = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
+
+	if (src > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, dst_freg, 1, src, srcw));
+		src = dst_freg;
+	}
+
+	switch (op) {
+		case SLJIT_FMOV:
+			if (src != dst_freg && dst_freg != TMP_FREG1)
+				EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VMOV_F64, dst_freg, src, 0));
+			break;
+		case SLJIT_FNEG:
+			EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VNEG_F64, dst_freg, src, 0));
+			break;
+		case SLJIT_FABS:
+			EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VABS_F64, dst_freg, src, 0));
+			break;
+	}
+
+	if (dst_freg == TMP_FREG1)
+		FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw));
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	int dst_freg;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	dst_freg = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
+
+	if (src2 > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w));
+		src2 = TMP_FREG2;
+	}
+
+	if (src1 > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w));
+		src1 = TMP_FREG1;
+	}
+
+	switch (op) {
+	case SLJIT_FADD:
+		EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VADD_F64, dst_freg, src2, src1));
+		break;
+
+	case SLJIT_FSUB:
+		EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VSUB_F64, dst_freg, src2, src1));
+		break;
+
+	case SLJIT_FMUL:
+		EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VMUL_F64, dst_freg, src2, src1));
+		break;
+
+	case SLJIT_FDIV:
+		EMIT_INSTRUCTION(EMIT_FPU_OPERATION(VDIV_F64, dst_freg, src2, src1));
+		break;
+	}
+
+	if (dst_freg == TMP_FREG1)
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw));
+
+	return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Other instructions                                                   */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_fast_enter(compiler, dst, dstw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
+		return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, 0, dst, SLJIT_UNUSED, RM(TMP_REG3)));
+	else if (dst & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, WORD_DATA, TMP_REG3, dst, dstw))
+			return compiler->error;
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG2, SLJIT_UNUSED, RM(TMP_REG3)));
+		compiler->cache_arg = 0;
+		compiler->cache_argw = 0;
+		return getput_arg(compiler, WORD_DATA, TMP_REG2, dst, dstw, 0, 0);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_fast_return(compiler, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(src)));
+	else if (src & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, WORD_DATA | LOAD_DATA, TMP_REG3, src, srcw))
+			FAIL_IF(compiler->error);
+		else {
+			compiler->cache_arg = 0;
+			compiler->cache_argw = 0;
+			FAIL_IF(getput_arg(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw, 0, 0));
+			EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG3, SLJIT_UNUSED, RM(TMP_REG2)));
+		}
+	}
+	else if (src & SLJIT_IMM)
+		FAIL_IF(load_immediate(compiler, TMP_REG3, srcw));
+	return push_inst(compiler, BLX | RM(TMP_REG3));
+}
+
+/* --------------------------------------------------------------------- */
+/*  Conditional instructions                                             */
+/* --------------------------------------------------------------------- */
+
+static sljit_uw get_cc(int type)
+{
+	switch (type) {
+	case SLJIT_C_EQUAL:
+	case SLJIT_C_MUL_NOT_OVERFLOW:
+	case SLJIT_C_FLOAT_EQUAL:
+		return 0x00000000;
+
+	case SLJIT_C_NOT_EQUAL:
+	case SLJIT_C_MUL_OVERFLOW:
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		return 0x10000000;
+
+	case SLJIT_C_LESS:
+	case SLJIT_C_FLOAT_LESS:
+		return 0x30000000;
+
+	case SLJIT_C_GREATER_EQUAL:
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		return 0x20000000;
+
+	case SLJIT_C_GREATER:
+	case SLJIT_C_FLOAT_GREATER:
+		return 0x80000000;
+
+	case SLJIT_C_LESS_EQUAL:
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		return 0x90000000;
+
+	case SLJIT_C_SIG_LESS:
+		return 0xb0000000;
+
+	case SLJIT_C_SIG_GREATER_EQUAL:
+		return 0xa0000000;
+
+	case SLJIT_C_SIG_GREATER:
+		return 0xc0000000;
+
+	case SLJIT_C_SIG_LESS_EQUAL:
+		return 0xd0000000;
+
+	case SLJIT_C_OVERFLOW:
+	case SLJIT_C_FLOAT_NAN:
+		return 0x60000000;
+
+	case SLJIT_C_NOT_OVERFLOW:
+	case SLJIT_C_FLOAT_NOT_NAN:
+		return 0x70000000;
+
+	default: /* SLJIT_JUMP */
+		return 0xe0000000;
+	}
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
+{
+	struct sljit_label *label;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_label(compiler);
+
+	if (compiler->last_label && compiler->last_label->size == compiler->size)
+		return compiler->last_label;
+
+	label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
+	PTR_FAIL_IF(!label);
+	set_label(label, compiler);
+	return label;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
+{
+	struct sljit_jump *jump;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_jump(compiler, type);
+
+	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+	PTR_FAIL_IF(!jump);
+	set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
+	type &= 0xff;
+
+	/* In ARM, we don't need to touch the arguments. */
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	if (type >= SLJIT_FAST_CALL)
+		PTR_FAIL_IF(prepare_blx(compiler));
+	PTR_FAIL_IF(push_inst_with_unique_literal(compiler, ((EMIT_DATA_TRANSFER(WORD_DATA | LOAD_DATA, 1, 0,
+		type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, TMP_PC, 0)) & ~COND_MASK) | get_cc(type), 0));
+
+	if (jump->flags & SLJIT_REWRITABLE_JUMP) {
+		jump->addr = compiler->size;
+		compiler->patches++;
+	}
+
+	if (type >= SLJIT_FAST_CALL) {
+		jump->flags |= IS_BL;
+		PTR_FAIL_IF(emit_blx(compiler));
+	}
+
+	if (!(jump->flags & SLJIT_REWRITABLE_JUMP))
+		jump->addr = compiler->size;
+#else
+	if (type >= SLJIT_FAST_CALL)
+		jump->flags |= IS_BL;
+	PTR_FAIL_IF(emit_imm(compiler, TMP_REG1, 0));
+	PTR_FAIL_IF(push_inst(compiler, (((type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG1)) & ~COND_MASK) | get_cc(type)));
+	jump->addr = compiler->size;
+#endif
+	return jump;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
+{
+	struct sljit_jump *jump;
+
+	CHECK_ERROR();
+	check_sljit_emit_ijump(compiler, type, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	/* In ARM, we don't need to touch the arguments. */
+	if (src & SLJIT_IMM) {
+		jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+		FAIL_IF(!jump);
+		set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_BL : 0));
+		jump->u.target = srcw;
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+		if (type >= SLJIT_FAST_CALL)
+			FAIL_IF(prepare_blx(compiler));
+		FAIL_IF(push_inst_with_unique_literal(compiler, EMIT_DATA_TRANSFER(WORD_DATA | LOAD_DATA, 1, 0, type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, TMP_PC, 0), 0));
+		if (type >= SLJIT_FAST_CALL)
+			FAIL_IF(emit_blx(compiler));
+#else
+		FAIL_IF(emit_imm(compiler, TMP_REG1, 0));
+		FAIL_IF(push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG1)));
+#endif
+		jump->addr = compiler->size;
+	}
+	else {
+		if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
+			return push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(src));
+
+		SLJIT_ASSERT(src & SLJIT_MEM);
+		FAIL_IF(emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
+		return push_inst(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RM(TMP_REG2));
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
+{
+	int reg;
+	sljit_uw cc;
+
+	CHECK_ERROR();
+	check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	if (dst == SLJIT_UNUSED)
+		return SLJIT_SUCCESS;
+
+	cc = get_cc(type);
+	if (GET_OPCODE(op) == SLJIT_OR) {
+		if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+			EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(ORR_DP, 0, dst, dst, SRC2_IMM | 1) & ~COND_MASK) | cc);
+			if (op & SLJIT_SET_E)
+				return push_inst(compiler, EMIT_DATA_PROCESS_INS(MOV_DP, SET_FLAGS, TMP_REG1, SLJIT_UNUSED, RM(dst)));
+			return SLJIT_SUCCESS;
+		}
+
+		EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, SRC2_IMM | 0));
+		EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(MOV_DP, 0, TMP_REG1, SLJIT_UNUSED, SRC2_IMM | 1) & ~COND_MASK) | cc);
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+		compiler->skip_checks = 1;
+#endif
+		return emit_op(compiler, op, ALLOW_IMM, dst, dstw, TMP_REG1, 0, dst, dstw);
+	}
+
+	reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
+
+	EMIT_INSTRUCTION(EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, SRC2_IMM | 0));
+	EMIT_INSTRUCTION((EMIT_DATA_PROCESS_INS(MOV_DP, 0, reg, SLJIT_UNUSED, SRC2_IMM | 1) & ~COND_MASK) | cc);
+
+	if (reg == TMP_REG2)
+		return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
+{
+	struct sljit_const *const_;
+	int reg;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_const(compiler, dst, dstw, init_value);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
+	PTR_FAIL_IF(!const_);
+
+	reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
+
+#if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
+	PTR_FAIL_IF(push_inst_with_unique_literal(compiler, EMIT_DATA_TRANSFER(WORD_DATA | LOAD_DATA, 1, 0, reg, TMP_PC, 0), init_value));
+	compiler->patches++;
+#else
+	PTR_FAIL_IF(emit_imm(compiler, reg, init_value));
+#endif
+	set_const(const_, compiler);
+
+	if (reg == TMP_REG2 && dst != SLJIT_UNUSED)
+		if (emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, TMP_REG2, 0))
+			return NULL;
+	return const_;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+	inline_set_jump_addr(addr, new_addr, 1);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
+{
+	inline_set_const(addr, new_constant, 1);
+}
diff --git a/8.31/sljit/sljitNativeMIPS_32.c b/8.31/sljit/sljitNativeMIPS_32.c
new file mode 100644
index 0000000..c0cc8b5
--- /dev/null
+++ b/8.31/sljit/sljitNativeMIPS_32.c
@@ -0,0 +1,405 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* mips 32-bit arch dependent functions. */
+
+static int load_immediate(struct sljit_compiler *compiler, int dst_ar, sljit_w imm)
+{
+	if (!(imm & ~0xffff))
+		return push_inst(compiler, ORI | SA(0) | TA(dst_ar) | IMM(imm), dst_ar);
+
+	if (imm < 0 && imm >= SIMM_MIN)
+		return push_inst(compiler, ADDIU | SA(0) | TA(dst_ar) | IMM(imm), dst_ar);
+
+	FAIL_IF(push_inst(compiler, LUI | TA(dst_ar) | IMM(imm >> 16), dst_ar));
+	return (imm & 0xffff) ? push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(imm), dst_ar) : SLJIT_SUCCESS;
+}
+
+#define EMIT_LOGICAL(op_imm, op_norm) \
+	if (flags & SRC2_IMM) { \
+		if (op & SLJIT_SET_E) \
+			FAIL_IF(push_inst(compiler, op_imm | S(src1) | TA(EQUAL_FLAG) | IMM(src2), EQUAL_FLAG)); \
+		if (CHECK_FLAGS(SLJIT_SET_E)) \
+			FAIL_IF(push_inst(compiler, op_imm | S(src1) | T(dst) | IMM(src2), DR(dst))); \
+	} \
+	else { \
+		if (op & SLJIT_SET_E) \
+			FAIL_IF(push_inst(compiler, op_norm | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); \
+		if (CHECK_FLAGS(SLJIT_SET_E)) \
+			FAIL_IF(push_inst(compiler, op_norm | S(src1) | T(src2) | D(dst), DR(dst))); \
+	}
+
+#define EMIT_SHIFT(op_imm, op_norm) \
+	if (flags & SRC2_IMM) { \
+		if (op & SLJIT_SET_E) \
+			FAIL_IF(push_inst(compiler, op_imm | T(src1) | DA(EQUAL_FLAG) | SH_IMM(src2), EQUAL_FLAG)); \
+		if (CHECK_FLAGS(SLJIT_SET_E)) \
+			FAIL_IF(push_inst(compiler, op_imm | T(src1) | D(dst) | SH_IMM(src2), DR(dst))); \
+	} \
+	else { \
+		if (op & SLJIT_SET_E) \
+			FAIL_IF(push_inst(compiler, op_norm | S(src2) | T(src1) | DA(EQUAL_FLAG), EQUAL_FLAG)); \
+		if (CHECK_FLAGS(SLJIT_SET_E)) \
+			FAIL_IF(push_inst(compiler, op_norm | S(src2) | T(src1) | D(dst), DR(dst))); \
+	}
+
+static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags,
+	int dst, int src1, sljit_w src2)
+{
+	int overflow_ra = 0;
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_ADD:
+		if (flags & SRC2_IMM) {
+			if (op & SLJIT_SET_O) {
+				FAIL_IF(push_inst(compiler, SRL | T(src1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1));
+				if (src2 < 0)
+					FAIL_IF(push_inst(compiler, XORI | SA(TMP_EREG1) | TA(TMP_EREG1) | IMM(1), TMP_EREG1));
+			}
+			if (op & SLJIT_SET_E)
+				FAIL_IF(push_inst(compiler, ADDIU | S(src1) | TA(EQUAL_FLAG) | IMM(src2), EQUAL_FLAG));
+			if (op & SLJIT_SET_C) {
+				if (src2 >= 0)
+					FAIL_IF(push_inst(compiler, ORI | S(src1) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG));
+				else {
+					FAIL_IF(push_inst(compiler, ADDIU | SA(0) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG));
+					FAIL_IF(push_inst(compiler, OR | S(src1) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG));
+				}
+			}
+			/* dst may be the same as src1 or src2. */
+			if (CHECK_FLAGS(SLJIT_SET_E))
+				FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(src2), DR(dst)));
+			if (op & SLJIT_SET_O) {
+				FAIL_IF(push_inst(compiler, SRL | T(dst) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG));
+				if (src2 < 0)
+					FAIL_IF(push_inst(compiler, XORI | SA(OVERFLOW_FLAG) | TA(OVERFLOW_FLAG) | IMM(1), OVERFLOW_FLAG));
+			}
+		}
+		else {
+			if (op & SLJIT_SET_O) {
+				FAIL_IF(push_inst(compiler, XOR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1));
+				FAIL_IF(push_inst(compiler, SRL | TA(TMP_EREG1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1));
+				if (src1 != dst)
+					overflow_ra = DR(src1);
+				else if (src2 != dst)
+					overflow_ra = DR(src2);
+				else {
+					/* Rare ocasion. */
+					FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2));
+					overflow_ra = TMP_EREG2;
+				}
+			}
+			if (op & SLJIT_SET_E)
+				FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG));
+			if (op & SLJIT_SET_C)
+				FAIL_IF(push_inst(compiler, OR | S(src1) | T(src2) | DA(ULESS_FLAG), ULESS_FLAG));
+			/* dst may be the same as src1 or src2. */
+			if (CHECK_FLAGS(SLJIT_SET_E))
+				FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | D(dst), DR(dst)));
+			if (op & SLJIT_SET_O) {
+				FAIL_IF(push_inst(compiler, XOR | S(dst) | TA(overflow_ra) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
+				FAIL_IF(push_inst(compiler, SRL | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG));
+			}
+		}
+
+		/* a + b >= a | b (otherwise, the carry should be set to 1). */
+		if (op & SLJIT_SET_C)
+			FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG));
+		if (op & SLJIT_SET_O)
+			return push_inst(compiler, MOVN | SA(0) | TA(TMP_EREG1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG);
+		return SLJIT_SUCCESS;
+
+	case SLJIT_ADDC:
+		if (flags & SRC2_IMM) {
+			if (op & SLJIT_SET_C) {
+				if (src2 >= 0)
+					FAIL_IF(push_inst(compiler, ORI | S(src1) | TA(TMP_EREG1) | IMM(src2), TMP_EREG1));
+				else {
+					FAIL_IF(push_inst(compiler, ADDIU | SA(0) | TA(TMP_EREG1) | IMM(src2), TMP_EREG1));
+					FAIL_IF(push_inst(compiler, OR | S(src1) | TA(TMP_EREG1) | DA(TMP_EREG1), TMP_EREG1));
+				}
+			}
+			FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(src2), DR(dst)));
+		} else {
+			if (op & SLJIT_SET_C)
+				FAIL_IF(push_inst(compiler, OR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1));
+			/* dst may be the same as src1 or src2. */
+			FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | D(dst), DR(dst)));
+		}
+		if (op & SLJIT_SET_C)
+			FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(TMP_EREG1) | DA(TMP_EREG1), TMP_EREG1));
+
+		FAIL_IF(push_inst(compiler, ADDU | S(dst) | TA(ULESS_FLAG) | D(dst), DR(dst)));
+		if (!(op & SLJIT_SET_C))
+			return SLJIT_SUCCESS;
+
+		/* Set TMP_EREG2 (dst == 0) && (ULESS_FLAG == 1). */
+		FAIL_IF(push_inst(compiler, SLTIU | S(dst) | TA(TMP_EREG2) | IMM(1), TMP_EREG2));
+		FAIL_IF(push_inst(compiler, AND | SA(TMP_EREG2) | TA(ULESS_FLAG) | DA(TMP_EREG2), TMP_EREG2));
+		/* Set carry flag. */
+		return push_inst(compiler, OR | SA(TMP_EREG2) | TA(TMP_EREG1) | DA(ULESS_FLAG), ULESS_FLAG);
+
+	case SLJIT_SUB:
+		if ((flags & SRC2_IMM) && ((op & (SLJIT_SET_S | SLJIT_SET_U)) || src2 == SIMM_MIN)) {
+			FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(TMP_REG2) | IMM(src2), DR(TMP_REG2)));
+			src2 = TMP_REG2;
+			flags &= ~SRC2_IMM;
+		}
+
+		if (flags & SRC2_IMM) {
+			if (op & SLJIT_SET_O) {
+				FAIL_IF(push_inst(compiler, SRL | T(src1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1));
+				if (src2 < 0)
+					FAIL_IF(push_inst(compiler, XORI | SA(TMP_EREG1) | TA(TMP_EREG1) | IMM(1), TMP_EREG1));
+				if (src1 != dst)
+					overflow_ra = DR(src1);
+				else {
+					/* Rare ocasion. */
+					FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2));
+					overflow_ra = TMP_EREG2;
+				}
+			}
+			if (op & SLJIT_SET_E)
+				FAIL_IF(push_inst(compiler, ADDIU | S(src1) | TA(EQUAL_FLAG) | IMM(-src2), EQUAL_FLAG));
+			if (op & SLJIT_SET_C)
+				FAIL_IF(push_inst(compiler, SLTIU | S(src1) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG));
+			/* dst may be the same as src1 or src2. */
+			if (CHECK_FLAGS(SLJIT_SET_E))
+				FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(-src2), DR(dst)));
+		}
+		else {
+			if (op & SLJIT_SET_O) {
+				FAIL_IF(push_inst(compiler, XOR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1));
+				FAIL_IF(push_inst(compiler, SRL | TA(TMP_EREG1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1));
+				if (src1 != dst)
+					overflow_ra = DR(src1);
+				else {
+					/* Rare ocasion. */
+					FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2));
+					overflow_ra = TMP_EREG2;
+				}
+			}
+			if (op & SLJIT_SET_E)
+				FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG));
+			if (op & (SLJIT_SET_U | SLJIT_SET_C))
+				FAIL_IF(push_inst(compiler, SLTU | S(src1) | T(src2) | DA(ULESS_FLAG), ULESS_FLAG));
+			if (op & SLJIT_SET_U)
+				FAIL_IF(push_inst(compiler, SLTU | S(src2) | T(src1) | DA(UGREATER_FLAG), UGREATER_FLAG));
+			if (op & SLJIT_SET_S) {
+				FAIL_IF(push_inst(compiler, SLT | S(src1) | T(src2) | DA(LESS_FLAG), LESS_FLAG));
+				FAIL_IF(push_inst(compiler, SLT | S(src2) | T(src1) | DA(GREATER_FLAG), GREATER_FLAG));
+			}
+			/* dst may be the same as src1 or src2. */
+			if (CHECK_FLAGS(SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_C))
+				FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | D(dst), DR(dst)));
+		}
+
+		if (op & SLJIT_SET_O) {
+			FAIL_IF(push_inst(compiler, XOR | S(dst) | TA(overflow_ra) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG));
+			FAIL_IF(push_inst(compiler, SRL | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG));
+			return push_inst(compiler, MOVZ | SA(0) | TA(TMP_EREG1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG);
+		}
+		return SLJIT_SUCCESS;
+
+	case SLJIT_SUBC:
+		if ((flags & SRC2_IMM) && src2 == SIMM_MIN) {
+			FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(TMP_REG2) | IMM(src2), DR(TMP_REG2)));
+			src2 = TMP_REG2;
+			flags &= ~SRC2_IMM;
+		}
+
+		if (flags & SRC2_IMM) {
+			if (op & SLJIT_SET_C)
+				FAIL_IF(push_inst(compiler, SLTIU | S(src1) | TA(TMP_EREG1) | IMM(-src2), TMP_EREG1));
+			/* dst may be the same as src1 or src2. */
+			FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(-src2), DR(dst)));
+		}
+		else {
+			if (op & SLJIT_SET_C)
+				FAIL_IF(push_inst(compiler, SLTU | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1));
+			/* dst may be the same as src1 or src2. */
+			FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | D(dst), DR(dst)));
+		}
+
+		if (op & SLJIT_SET_C)
+			FAIL_IF(push_inst(compiler, MOVZ | SA(ULESS_FLAG) | T(dst) | DA(TMP_EREG1), TMP_EREG1));
+
+		FAIL_IF(push_inst(compiler, SUBU | S(dst) | TA(ULESS_FLAG) | D(dst), DR(dst)));
+
+		if (op & SLJIT_SET_C)
+			FAIL_IF(push_inst(compiler, ADDU | SA(TMP_EREG1) | TA(0) | DA(ULESS_FLAG), ULESS_FLAG));
+
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MUL:
+		SLJIT_ASSERT(!(flags & SRC2_IMM));
+		if (!(op & SLJIT_SET_O)) {
+#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64)
+			return push_inst(compiler, MUL | S(src1) | T(src2) | D(dst), DR(dst));
+#else
+			FAIL_IF(push_inst(compiler, MULT | S(src1) | T(src2), MOVABLE_INS));
+			return push_inst(compiler, MFLO | D(dst), DR(dst));
+#endif
+		}
+		FAIL_IF(push_inst(compiler, MULT | S(src1) | T(src2), MOVABLE_INS));
+		FAIL_IF(push_inst(compiler, MFHI | DA(TMP_EREG1), TMP_EREG1));
+		FAIL_IF(push_inst(compiler, MFLO | D(dst), DR(dst)));
+		FAIL_IF(push_inst(compiler, SRA | T(dst) | DA(TMP_EREG2) | SH_IMM(31), TMP_EREG2));
+		return push_inst(compiler, SUBU | SA(TMP_EREG1) | TA(TMP_EREG2) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG);
+
+	case SLJIT_AND:
+		EMIT_LOGICAL(ANDI, AND);
+		return SLJIT_SUCCESS;
+
+	case SLJIT_OR:
+		EMIT_LOGICAL(ORI, OR);
+		return SLJIT_SUCCESS;
+
+	case SLJIT_XOR:
+		EMIT_LOGICAL(XORI, XOR);
+		return SLJIT_SUCCESS;
+
+	case SLJIT_SHL:
+		EMIT_SHIFT(SLL, SLLV);
+		return SLJIT_SUCCESS;
+
+	case SLJIT_LSHR:
+		EMIT_SHIFT(SRL, SRLV);
+		return SLJIT_SUCCESS;
+
+	case SLJIT_ASHR:
+		EMIT_SHIFT(SRA, SRAV);
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV:
+	case SLJIT_MOV_UI:
+	case SLJIT_MOV_SI:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if (dst != src2)
+			return push_inst(compiler, ADDU | S(src2) | TA(0) | D(dst), DR(dst));
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UB:
+	case SLJIT_MOV_SB:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+			if (op == SLJIT_MOV_SB) {
+#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64)
+				return push_inst(compiler, SEB | T(src2) | D(dst), DR(dst));
+#else
+				FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(24), DR(dst)));
+				return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(24), DR(dst));
+#endif
+			}
+			return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xff), DR(dst));
+		}
+		else if (dst != src2)
+			SLJIT_ASSERT_STOP();
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UH:
+	case SLJIT_MOV_SH:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+			if (op == SLJIT_MOV_SH) {
+#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64)
+				return push_inst(compiler, SEH | T(src2) | D(dst), DR(dst));
+#else
+				FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(16), DR(dst)));
+				return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(16), DR(dst));
+#endif
+			}
+			return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xffff), DR(dst));
+		}
+		else if (dst != src2)
+			SLJIT_ASSERT_STOP();
+		return SLJIT_SUCCESS;
+
+	case SLJIT_NOT:
+		SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
+		if (op & SLJIT_SET_E)
+			FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG));
+		if (CHECK_FLAGS(SLJIT_SET_E))
+			FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | D(dst), DR(dst)));
+		return SLJIT_SUCCESS;
+
+	case SLJIT_CLZ:
+		SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM));
+#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64)
+		if (op & SLJIT_SET_E)
+			FAIL_IF(push_inst(compiler, CLZ | S(src2) | TA(EQUAL_FLAG) | DA(EQUAL_FLAG), EQUAL_FLAG));
+		if (CHECK_FLAGS(SLJIT_SET_E))
+			FAIL_IF(push_inst(compiler, CLZ | S(src2) | T(dst) | D(dst), DR(dst)));
+#else
+		if (SLJIT_UNLIKELY(flags & UNUSED_DEST)) {
+			FAIL_IF(push_inst(compiler, SRL | T(src2) | DA(EQUAL_FLAG) | SH_IMM(31), EQUAL_FLAG));
+			return push_inst(compiler, XORI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG);
+		}
+		/* Nearly all instructions are unmovable in the following sequence. */
+		FAIL_IF(push_inst(compiler, ADDU_W | S(src2) | TA(0) | D(TMP_REG1), DR(TMP_REG1)));
+		/* Check zero. */
+		FAIL_IF(push_inst(compiler, BEQ | S(TMP_REG1) | TA(0) | IMM(6), UNMOVABLE_INS));
+		FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(32), UNMOVABLE_INS));
+		/* Check sign bit. */
+		FAIL_IF(push_inst(compiler, BLTZ | S(TMP_REG1) | IMM(4), UNMOVABLE_INS));
+		FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(0), UNMOVABLE_INS));
+		/* Loop for searching the highest bit. */
+		FAIL_IF(push_inst(compiler, SLL | T(TMP_REG1) | D(TMP_REG1) | SH_IMM(1), DR(TMP_REG1)));
+		FAIL_IF(push_inst(compiler, BGEZ | S(TMP_REG1) | IMM(-2), UNMOVABLE_INS));
+		FAIL_IF(push_inst(compiler, ADDIU_W | S(dst) | T(dst) | IMM(1), UNMOVABLE_INS));
+		if (op & SLJIT_SET_E)
+			return push_inst(compiler, ADDU_W | S(dst) | TA(0) | DA(EQUAL_FLAG), EQUAL_FLAG);
+#endif
+		return SLJIT_SUCCESS;
+	}
+
+	SLJIT_ASSERT_STOP();
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int emit_const(struct sljit_compiler *compiler, int reg, sljit_w init_value)
+{
+	FAIL_IF(push_inst(compiler, LUI | T(reg) | IMM(init_value >> 16), DR(reg)));
+	return push_inst(compiler, ORI | S(reg) | T(reg) | IMM(init_value), DR(reg));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+	sljit_ins *inst = (sljit_ins*)addr;
+
+	inst[0] = (inst[0] & 0xffff0000) | ((new_addr >> 16) & 0xffff);
+	inst[1] = (inst[1] & 0xffff0000) | (new_addr & 0xffff);
+	SLJIT_CACHE_FLUSH(inst, inst + 2);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
+{
+	sljit_ins *inst = (sljit_ins*)addr;
+
+	inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 16) & 0xffff);
+	inst[1] = (inst[1] & 0xffff0000) | (new_constant & 0xffff);
+	SLJIT_CACHE_FLUSH(inst, inst + 2);
+}
diff --git a/8.31/sljit/sljitNativeMIPS_common.c b/8.31/sljit/sljitNativeMIPS_common.c
new file mode 100644
index 0000000..cf748c2
--- /dev/null
+++ b/8.31/sljit/sljitNativeMIPS_common.c
@@ -0,0 +1,1831 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
+{
+	return "MIPS" SLJIT_CPUINFO;
+}
+
+/* Latest MIPS architecture. */
+/* Detect SLJIT_MIPS_32_64 */
+
+/* Length of an instruction word
+   Both for mips-32 and mips-64 */
+typedef sljit_ui sljit_ins;
+
+#define TMP_REG1	(SLJIT_NO_REGISTERS + 1)
+#define TMP_REG2	(SLJIT_NO_REGISTERS + 2)
+#define TMP_REG3	(SLJIT_NO_REGISTERS + 3)
+
+/* For position independent code, t9 must contain the function address. */
+#define PIC_ADDR_REG		TMP_REG2
+
+/* TMP_EREG1 is used mainly for literal encoding on 64 bit. */
+#define TMP_EREG1		15
+#define TMP_EREG2		24
+/* Floating point status register. */
+#define FCSR_REG		31
+/* Return address register. */
+#define RETURN_ADDR_REG		31
+
+/* Flags are keept in volatile registers. */
+#define EQUAL_FLAG	7
+/* And carry flag as well. */
+#define ULESS_FLAG	10
+#define UGREATER_FLAG	11
+#define LESS_FLAG	12
+#define GREATER_FLAG	13
+#define OVERFLOW_FLAG	14
+
+#define TMP_FREG1	(SLJIT_FLOAT_REG4 + 1)
+#define TMP_FREG2	(SLJIT_FLOAT_REG4 + 2)
+
+/* --------------------------------------------------------------------- */
+/*  Instrucion forms                                                     */
+/* --------------------------------------------------------------------- */
+
+#define S(s)		(reg_map[s] << 21)
+#define T(t)		(reg_map[t] << 16)
+#define D(d)		(reg_map[d] << 11)
+/* Absolute registers. */
+#define SA(s)		((s) << 21)
+#define TA(t)		((t) << 16)
+#define DA(d)		((d) << 11)
+#define FT(t)		((t) << (16 + 1))
+#define FS(s)		((s) << (11 + 1))
+#define FD(d)		((d) << (6 + 1))
+#define IMM(imm)	((imm) & 0xffff)
+#define SH_IMM(imm)	((imm & 0x1f) << 6)
+
+#define DR(dr)		(reg_map[dr])
+#define HI(opcode)	((opcode) << 26)
+#define LO(opcode)	(opcode)
+#define FMT_D		(17 << 21)
+
+#define ABS_D		(HI(17) | FMT_D | LO(5))
+#define ADD_D		(HI(17) | FMT_D | LO(0))
+#define ADDU		(HI(0) | LO(33))
+#define ADDIU		(HI(9))
+#define AND		(HI(0) | LO(36))
+#define ANDI		(HI(12))
+#define B		(HI(4))
+#define BAL		(HI(1) | (17 << 16))
+#define BC1F		(HI(17) | (8 << 21))
+#define BC1T		(HI(17) | (8 << 21) | (1 << 16))
+#define BEQ		(HI(4))
+#define BGEZ		(HI(1) | (1 << 16))
+#define BGTZ		(HI(7))
+#define BLEZ		(HI(6))
+#define BLTZ		(HI(1) | (0 << 16))
+#define BNE		(HI(5))
+#define BREAK		(HI(0) | LO(13))
+#define C_UN_D		(HI(17) | FMT_D | LO(49))
+#define C_UEQ_D		(HI(17) | FMT_D | LO(51))
+#define C_ULE_D		(HI(17) | FMT_D | LO(55))
+#define C_ULT_D		(HI(17) | FMT_D | LO(53))
+#define DIV		(HI(0) | LO(26))
+#define DIVU		(HI(0) | LO(27))
+#define DIV_D		(HI(17) | FMT_D | LO(3))
+#define J		(HI(2))
+#define JAL		(HI(3))
+#define JALR		(HI(0) | LO(9))
+#define JR		(HI(0) | LO(8))
+#define LD		(HI(55))
+#define LDC1		(HI(53))
+#define LUI		(HI(15))
+#define LW		(HI(35))
+#define NEG_D		(HI(17) | FMT_D | LO(7))
+#define MFHI		(HI(0) | LO(16))
+#define MFLO		(HI(0) | LO(18))
+#define MOV_D		(HI(17) | FMT_D | LO(6))
+#define CFC1		(HI(17) | (2 << 21))
+#define MOVN		(HI(0) | LO(11))
+#define MOVZ		(HI(0) | LO(10))
+#define MUL_D		(HI(17) | FMT_D | LO(2))
+#define MULT		(HI(0) | LO(24))
+#define MULTU		(HI(0) | LO(25))
+#define NOP		(HI(0) | LO(0))
+#define NOR		(HI(0) | LO(39))
+#define OR		(HI(0) | LO(37))
+#define ORI		(HI(13))
+#define SD		(HI(63))
+#define SDC1		(HI(61))
+#define SLT		(HI(0) | LO(42))
+#define SLTI		(HI(10))
+#define SLTIU		(HI(11))
+#define SLTU		(HI(0) | LO(43))
+#define SLL		(HI(0) | LO(0))
+#define SLLV		(HI(0) | LO(4))
+#define SRL		(HI(0) | LO(2))
+#define SRLV		(HI(0) | LO(6))
+#define SRA		(HI(0) | LO(3))
+#define SRAV		(HI(0) | LO(7))
+#define SUB_D		(HI(17) | FMT_D | LO(1))
+#define SUBU		(HI(0) | LO(35))
+#define SW		(HI(43))
+#define XOR		(HI(0) | LO(38))
+#define XORI		(HI(14))
+
+#if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64)
+#define CLZ		(HI(28) | LO(32))
+#define MUL		(HI(28) | LO(2))
+#define SEB		(HI(31) | (16 << 6) | LO(32))
+#define SEH		(HI(31) | (24 << 6) | LO(32))
+#endif
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+#define ADDU_W		ADDU
+#define ADDIU_W		ADDIU
+#define SLL_W		SLL
+#define SUBU_W		SUBU
+#else
+#define ADDU_W		DADDU
+#define ADDIU_W		DADDIU
+#define SLL_W		DSLL
+#define SUBU_W		DSUBU
+#endif
+
+#define SIMM_MAX	(0x7fff)
+#define SIMM_MIN	(-0x8000)
+#define UIMM_MAX	(0xffff)
+
+static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 6] = {
+  0, 2, 5, 6, 3, 8, 16, 17, 18, 19, 20, 29, 4, 25, 9
+};
+
+/* dest_reg is the absolute name of the register
+   Useful for reordering instructions in the delay slot. */
+static int push_inst(struct sljit_compiler *compiler, sljit_ins ins, int delay_slot)
+{
+	sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
+	FAIL_IF(!ptr);
+	*ptr = ins;
+	compiler->size++;
+	compiler->delay_slot = delay_slot;
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE sljit_ins invert_branch(int flags)
+{
+	return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16);
+}
+
+static SLJIT_INLINE sljit_ins* optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code)
+{
+	sljit_w diff;
+	sljit_uw target_addr;
+	sljit_ins *inst;
+	sljit_ins saved_inst;
+
+	if (jump->flags & SLJIT_REWRITABLE_JUMP)
+		return code_ptr;
+
+	if (jump->flags & JUMP_ADDR)
+		target_addr = jump->u.target;
+	else {
+		SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+		target_addr = (sljit_uw)(code + jump->u.label->size);
+	}
+	inst = (sljit_ins*)jump->addr;
+	if (jump->flags & IS_COND)
+		inst--;
+
+	/* B instructions. */
+	if (jump->flags & IS_MOVABLE) {
+		diff = ((sljit_w)target_addr - (sljit_w)(inst)) >> 2;
+		if (diff <= SIMM_MAX && diff >= SIMM_MIN) {
+			jump->flags |= PATCH_B;
+
+			if (!(jump->flags & IS_COND)) {
+				inst[0] = inst[-1];
+				inst[-1] = (jump->flags & IS_JAL) ? BAL : B;
+				jump->addr -= sizeof(sljit_ins);
+				return inst;
+			}
+			saved_inst = inst[0];
+			inst[0] = inst[-1];
+			inst[-1] = saved_inst ^ invert_branch(jump->flags);
+			jump->addr -= 2 * sizeof(sljit_ins);
+			return inst;
+		}
+	}
+
+	diff = ((sljit_w)target_addr - (sljit_w)(inst + 1)) >> 2;
+	if (diff <= SIMM_MAX && diff >= SIMM_MIN) {
+		jump->flags |= PATCH_B;
+
+		if (!(jump->flags & IS_COND)) {
+			inst[0] = (jump->flags & IS_JAL) ? BAL : B;
+			inst[1] = NOP;
+			return inst + 1;
+		}
+		inst[0] = inst[0] ^ invert_branch(jump->flags);
+		inst[1] = NOP;
+		jump->addr -= sizeof(sljit_ins);
+		return inst + 1;
+	}
+
+	if (jump->flags & IS_COND) {
+		if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) {
+			jump->flags |= PATCH_J;
+			inst[0] = (inst[0] & 0xffff0000) | 3;
+			inst[1] = NOP;
+			inst[2] = J;
+			inst[3] = NOP;
+			jump->addr += sizeof(sljit_ins);
+			return inst + 3;
+		}
+		return code_ptr;
+	}
+
+	/* J instuctions. */
+	if (jump->flags & IS_MOVABLE) {
+		if ((target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) {
+			jump->flags |= PATCH_J;
+			inst[0] = inst[-1];
+			inst[-1] = (jump->flags & IS_JAL) ? JAL : J;
+			jump->addr -= sizeof(sljit_ins);
+			return inst;
+		}
+	}
+
+	if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) {
+		jump->flags |= PATCH_J;
+		inst[0] = (jump->flags & IS_JAL) ? JAL : J;
+		inst[1] = NOP;
+		return inst + 1;
+	}
+
+	return code_ptr;
+}
+
+#ifdef __GNUC__
+static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr)
+{
+	SLJIT_CACHE_FLUSH(code, code_ptr);
+}
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+	struct sljit_memory_fragment *buf;
+	sljit_ins *code;
+	sljit_ins *code_ptr;
+	sljit_ins *buf_ptr;
+	sljit_ins *buf_end;
+	sljit_uw word_count;
+	sljit_uw addr;
+
+	struct sljit_label *label;
+	struct sljit_jump *jump;
+	struct sljit_const *const_;
+
+	CHECK_ERROR_PTR();
+	check_sljit_generate_code(compiler);
+	reverse_buf(compiler);
+
+	code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
+	PTR_FAIL_WITH_EXEC_IF(code);
+	buf = compiler->buf;
+
+	code_ptr = code;
+	word_count = 0;
+	label = compiler->labels;
+	jump = compiler->jumps;
+	const_ = compiler->consts;
+	do {
+		buf_ptr = (sljit_ins*)buf->memory;
+		buf_end = buf_ptr + (buf->used_size >> 2);
+		do {
+			*code_ptr = *buf_ptr++;
+			SLJIT_ASSERT(!label || label->size >= word_count);
+			SLJIT_ASSERT(!jump || jump->addr >= word_count);
+			SLJIT_ASSERT(!const_ || const_->addr >= word_count);
+			/* These structures are ordered by their address. */
+			if (label && label->size == word_count) {
+				/* Just recording the address. */
+				label->addr = (sljit_uw)code_ptr;
+				label->size = code_ptr - code;
+				label = label->next;
+			}
+			if (jump && jump->addr == word_count) {
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+				jump->addr = (sljit_uw)(code_ptr - 3);
+#else
+				jump->addr = (sljit_uw)(code_ptr - 6);
+#endif
+				code_ptr = optimize_jump(jump, code_ptr, code);
+				jump = jump->next;
+			}
+			if (const_ && const_->addr == word_count) {
+				/* Just recording the address. */
+				const_->addr = (sljit_uw)code_ptr;
+				const_ = const_->next;
+			}
+			code_ptr ++;
+			word_count ++;
+		} while (buf_ptr < buf_end);
+
+		buf = buf->next;
+	} while (buf);
+
+	if (label && label->size == word_count) {
+		label->addr = (sljit_uw)code_ptr;
+		label->size = code_ptr - code;
+		label = label->next;
+	}
+
+	SLJIT_ASSERT(!label);
+	SLJIT_ASSERT(!jump);
+	SLJIT_ASSERT(!const_);
+	SLJIT_ASSERT(code_ptr - code <= (int)compiler->size);
+
+	jump = compiler->jumps;
+	while (jump) {
+		do {
+			addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
+			buf_ptr = (sljit_ins*)jump->addr;
+
+			if (jump->flags & PATCH_B) {
+				addr = (sljit_w)(addr - (jump->addr + sizeof(sljit_ins))) >> 2;
+				SLJIT_ASSERT((sljit_w)addr <= SIMM_MAX && (sljit_w)addr >= SIMM_MIN);
+				buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff);
+				break;
+			}
+			if (jump->flags & PATCH_J) {
+				SLJIT_ASSERT((addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff));
+				buf_ptr[0] |= (addr >> 2) & 0x03ffffff;
+				break;
+			}
+
+			/* Set the fields of immediate loads. */
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+			buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
+			buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
+#else
+			buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff);
+			buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff);
+			buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff);
+			buf_ptr[4] = (buf_ptr[4] & 0xffff0000) | (addr & 0xffff);
+#endif
+		} while (0);
+		jump = jump->next;
+	}
+
+	compiler->error = SLJIT_ERR_COMPILED;
+	compiler->executable_size = compiler->size * sizeof(sljit_ins);
+#ifndef __GNUC__
+	SLJIT_CACHE_FLUSH(code, code_ptr);
+#else
+	/* GCC workaround for invalid code generation with -O2. */
+	sljit_cache_flush(code, code_ptr);
+#endif
+	return code;
+}
+
+/* Creates an index in data_transfer_insts array. */
+#define WORD_DATA	0x00
+#define BYTE_DATA	0x01
+#define HALF_DATA	0x02
+#define INT_DATA	0x03
+#define SIGNED_DATA	0x04
+#define LOAD_DATA	0x08
+
+#define MEM_MASK	0x0f
+
+#define WRITE_BACK	0x00010
+#define ARG_TEST	0x00020
+#define CUMULATIVE_OP	0x00040
+#define LOGICAL_OP	0x00080
+#define IMM_OP		0x00100
+#define SRC2_IMM	0x00200
+
+#define UNUSED_DEST	0x00400
+#define REG_DEST	0x00800
+#define REG1_SOURCE	0x01000
+#define REG2_SOURCE	0x02000
+#define SLOW_SRC1	0x04000
+#define SLOW_SRC2	0x08000
+#define SLOW_DEST	0x10000
+
+/* Only these flags are set. UNUSED_DEST is not set when no flags should be set. */
+#define CHECK_FLAGS(list) \
+	(!(flags & UNUSED_DEST) || (op & GET_FLAGS(~(list))))
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+#include "sljitNativeMIPS_32.c"
+#else
+#include "sljitNativeMIPS_64.c"
+#endif
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+#define STACK_STORE	SW
+#define STACK_LOAD	LW
+#else
+#define STACK_STORE	SD
+#define STACK_LOAD	LD
+#endif
+
+static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	sljit_ins base;
+
+	CHECK_ERROR();
+	check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	local_size += (saveds + 1 + 4) * sizeof(sljit_w);
+	local_size = (local_size + 15) & ~0xf;
+	compiler->local_size = local_size;
+
+	if (local_size <= SIMM_MAX) {
+		/* Frequent case. */
+		FAIL_IF(push_inst(compiler, ADDIU_W | S(SLJIT_LOCALS_REG) | T(SLJIT_LOCALS_REG) | IMM(-local_size), DR(SLJIT_LOCALS_REG)));
+		base = S(SLJIT_LOCALS_REG);
+	}
+	else {
+		FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size));
+		FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_LOCALS_REG) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
+		FAIL_IF(push_inst(compiler, SUBU_W | S(SLJIT_LOCALS_REG) | T(TMP_REG1) | D(SLJIT_LOCALS_REG), DR(SLJIT_LOCALS_REG)));
+		base = S(TMP_REG2);
+		local_size = 0;
+	}
+
+	FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(local_size - 1 * (int)sizeof(sljit_w)), MOVABLE_INS));
+	if (saveds >= 1)
+		FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG1) | IMM(local_size - 2 * (int)sizeof(sljit_w)), MOVABLE_INS));
+	if (saveds >= 2)
+		FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG2) | IMM(local_size - 3 * (int)sizeof(sljit_w)), MOVABLE_INS));
+	if (saveds >= 3)
+		FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_REG3) | IMM(local_size - 4 * (int)sizeof(sljit_w)), MOVABLE_INS));
+	if (saveds >= 4)
+		FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_EREG1) | IMM(local_size - 5 * (int)sizeof(sljit_w)), MOVABLE_INS));
+	if (saveds >= 5)
+		FAIL_IF(push_inst(compiler, STACK_STORE | base | T(SLJIT_SAVED_EREG2) | IMM(local_size - 6 * (int)sizeof(sljit_w)), MOVABLE_INS));
+
+	if (args >= 1)
+		FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_SAVED_REG1), DR(SLJIT_SAVED_REG1)));
+	if (args >= 2)
+		FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_SAVED_REG2), DR(SLJIT_SAVED_REG2)));
+	if (args >= 3)
+		FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_SAVED_REG3), DR(SLJIT_SAVED_REG3)));
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	CHECK_ERROR_VOID();
+	check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	local_size += (saveds + 1 + 4) * sizeof(sljit_w);
+	compiler->local_size = (local_size + 15) & ~0xf;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	int local_size;
+	sljit_ins base;
+
+	CHECK_ERROR();
+	check_sljit_emit_return(compiler, op, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+	local_size = compiler->local_size;
+	if (local_size <= SIMM_MAX)
+		base = S(SLJIT_LOCALS_REG);
+	else {
+		FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size));
+		FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_LOCALS_REG) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1)));
+		base = S(TMP_REG1);
+		local_size = 0;
+	}
+
+	FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - 1 * (int)sizeof(sljit_w)), RETURN_ADDR_REG));
+	if (compiler->saveds >= 5)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_EREG2) | IMM(local_size - 6 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_EREG2)));
+	if (compiler->saveds >= 4)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_EREG1) | IMM(local_size - 5 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_EREG1)));
+	if (compiler->saveds >= 3)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG3) | IMM(local_size - 4 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_REG3)));
+	if (compiler->saveds >= 2)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG2) | IMM(local_size - 3 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_REG2)));
+	if (compiler->saveds >= 1)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(SLJIT_SAVED_REG1) | IMM(local_size - 2 * (int)sizeof(sljit_w)), DR(SLJIT_SAVED_REG1)));
+
+	FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
+	if (compiler->local_size <= SIMM_MAX)
+		return push_inst(compiler, ADDIU_W | S(SLJIT_LOCALS_REG) | T(SLJIT_LOCALS_REG) | IMM(compiler->local_size), UNMOVABLE_INS);
+	else
+		return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_LOCALS_REG), UNMOVABLE_INS);
+}
+
+#undef STACK_STORE
+#undef STACK_LOAD
+
+/* --------------------------------------------------------------------- */
+/*  Operators                                                            */
+/* --------------------------------------------------------------------- */
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+#define ARCH_DEPEND(a, b)	a
+#else
+#define ARCH_DEPEND(a, b)	b
+#endif
+
+static SLJIT_CONST sljit_ins data_transfer_insts[16] = {
+/* s u w */ ARCH_DEPEND(HI(43) /* sw */, HI(63) /* sd */),
+/* s u b */ HI(40) /* sb */,
+/* s u h */ HI(41) /* sh*/,
+/* s u i */ HI(43) /* sw */,
+
+/* s s w */ ARCH_DEPEND(HI(43) /* sw */, HI(63) /* sd */),
+/* s s b */ HI(40) /* sb */,
+/* s s h */ HI(41) /* sh*/,
+/* s s i */ HI(43) /* sw */,
+
+/* l u w */ ARCH_DEPEND(HI(35) /* lw */, HI(55) /* ld */),
+/* l u b */ HI(36) /* lbu */,
+/* l u h */ HI(37) /* lhu */,
+/* l u i */ ARCH_DEPEND(HI(35) /* lw */, HI(39) /* lwu */),
+
+/* l s w */ ARCH_DEPEND(HI(35) /* lw */, HI(55) /* ld */),
+/* l s b */ HI(32) /* lb */,
+/* l s h */ HI(33) /* lh */,
+/* l s i */ HI(35) /* lw */,
+};
+
+/* reg_ar is an absoulute register! */
+
+/* Can perform an operation using at most 1 instruction. */
+static int getput_arg_fast(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw)
+{
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	if (!(flags & WRITE_BACK) && !(arg & 0xf0) && argw <= SIMM_MAX && argw >= SIMM_MIN) {
+		/* Works for both absoulte and relative addresses. */
+		if (SLJIT_UNLIKELY(flags & ARG_TEST))
+			return 1;
+		FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & 0xf) | TA(reg_ar) | IMM(argw), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS));
+		return -1;
+	}
+	return (flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
+}
+
+/* See getput_arg below.
+   Note: can_cache is called only for binary operators. Those
+   operators always uses word arguments without write back. */
+static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
+{
+	if (!(next_arg & SLJIT_MEM))
+		return 0;
+
+	/* Simple operation except for updates. */
+	if (arg & 0xf0) {
+		argw &= 0x3;
+		next_argw &= 0x3;
+		if (argw && argw == next_argw && (arg == next_arg || (arg & 0xf0) == (next_arg & 0xf0)))
+			return 1;
+		return 0;
+	}
+
+	if (arg == next_arg) {
+		if (((sljit_uw)(next_argw - argw) <= SIMM_MAX && (sljit_uw)(next_argw - argw) >= SIMM_MIN))
+			return 1;
+		return 0;
+	}
+
+	return 0;
+}
+
+/* Emit the necessary instructions. See can_cache above. */
+static int getput_arg(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
+{
+	int tmp_ar;
+	int base;
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+	if (!(next_arg & SLJIT_MEM)) {
+		next_arg = 0;
+		next_argw = 0;
+	}
+
+	tmp_ar = (flags & LOAD_DATA) ? reg_ar : DR(TMP_REG3);
+	base = arg & 0xf;
+
+	if (SLJIT_UNLIKELY(arg & 0xf0)) {
+		argw &= 0x3;
+		if ((flags & WRITE_BACK) && reg_ar == DR(base)) {
+			SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar);
+			FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1)));
+			reg_ar = DR(TMP_REG1);
+		}
+
+		/* Using the cache. */
+		if (argw == compiler->cache_argw) {
+			if (!(flags & WRITE_BACK)) {
+				if (arg == compiler->cache_arg)
+					return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+				if ((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) {
+					if (arg == next_arg && argw == (next_argw & 0x3)) {
+						compiler->cache_arg = arg;
+						compiler->cache_argw = argw;
+						FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
+						return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+					}
+					FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar));
+					return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+				}
+			}
+			else {
+				if ((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) {
+					FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base)));
+					return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+				}
+			}
+		}
+
+		if (SLJIT_UNLIKELY(argw)) {
+			compiler->cache_arg = SLJIT_MEM | (arg & 0xf0);
+			compiler->cache_argw = argw;
+			FAIL_IF(push_inst(compiler, SLL_W | T((arg >> 4) & 0xf) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3)));
+		}
+
+		if (!(flags & WRITE_BACK)) {
+			if (arg == next_arg && argw == (next_argw & 0x3)) {
+				compiler->cache_arg = arg;
+				compiler->cache_argw = argw;
+				FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
+				tmp_ar = DR(TMP_REG3);
+			}
+			else
+				FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | DA(tmp_ar), tmp_ar));
+			return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+		}
+		FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? ((arg >> 4) & 0xf) : TMP_REG3) | D(base), DR(base)));
+		return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+	}
+
+	if (SLJIT_UNLIKELY(flags & WRITE_BACK) && base) {
+		/* Update only applies if a base register exists. */
+		if (reg_ar == DR(base)) {
+			SLJIT_ASSERT(!(flags & LOAD_DATA) && DR(TMP_REG1) != reg_ar);
+			if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
+				FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar) | IMM(argw), MOVABLE_INS));
+				if (argw)
+					return push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base));
+				return SLJIT_SUCCESS;
+			}
+			FAIL_IF(push_inst(compiler, ADDU_W | SA(reg_ar) | TA(0) | D(TMP_REG1), DR(TMP_REG1)));
+			reg_ar = DR(TMP_REG1);
+		}
+
+		if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
+			if (argw)
+				FAIL_IF(push_inst(compiler, ADDIU_W | S(base) | T(base) | IMM(argw), DR(base)));
+		}
+		else {
+			if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
+				if (argw != compiler->cache_argw) {
+					FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
+					compiler->cache_argw = argw;
+				}
+				FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base)));
+			}
+			else {
+				compiler->cache_arg = SLJIT_MEM;
+				compiler->cache_argw = argw;
+				FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
+				FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(base), DR(base)));
+			}
+		}
+		return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(base) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+	}
+
+	if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
+		if (argw != compiler->cache_argw) {
+			FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
+			compiler->cache_argw = argw;
+		}
+		return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+	}
+
+	if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
+		if (argw != compiler->cache_argw)
+			FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
+	}
+	else {
+		compiler->cache_arg = SLJIT_MEM;
+		FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
+	}
+	compiler->cache_argw = argw;
+
+	if (!base)
+		return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+
+	if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) {
+		compiler->cache_arg = arg;
+		FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3)));
+		return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+	}
+
+	FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar));
+	return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), (flags & LOAD_DATA) ? reg_ar : MOVABLE_INS);
+}
+
+static SLJIT_INLINE int emit_op_mem(struct sljit_compiler *compiler, int flags, int reg_ar, int arg, sljit_w argw)
+{
+	if (getput_arg_fast(compiler, flags, reg_ar, arg, argw))
+		return compiler->error;
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+	return getput_arg(compiler, flags, reg_ar, arg, argw, 0, 0);
+}
+
+static int emit_op(struct sljit_compiler *compiler, int op, int flags,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	/* arg1 goes to TMP_REG1 or src reg
+	   arg2 goes to TMP_REG2, imm or src reg
+	   TMP_REG3 can be used for caching
+	   result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
+	int dst_r = TMP_REG2;
+	int src1_r;
+	sljit_w src2_r = 0;
+	int sugg_src2_r = TMP_REG2;
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REG3) {
+		dst_r = dst;
+		flags |= REG_DEST;
+		if (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)
+			sugg_src2_r = dst_r;
+	}
+	else if (dst == SLJIT_UNUSED) {
+		if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
+			return SLJIT_SUCCESS;
+		if (GET_FLAGS(op))
+			flags |= UNUSED_DEST;
+	}
+	else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw))
+		flags |= SLOW_DEST;
+
+	if (flags & IMM_OP) {
+		if ((src2 & SLJIT_IMM) && src2w) {
+			if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN))
+				|| ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) {
+				flags |= SRC2_IMM;
+				src2_r = src2w;
+			}
+		}
+		if ((src1 & SLJIT_IMM) && src1w && (flags & CUMULATIVE_OP) && !(flags & SRC2_IMM)) {
+			if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN))
+				|| ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) {
+				flags |= SRC2_IMM;
+				src2_r = src1w;
+
+				/* And swap arguments. */
+				src1 = src2;
+				src1w = src2w;
+				src2 = SLJIT_IMM;
+				/* src2w = src2_r unneeded. */
+			}
+		}
+	}
+
+	/* Source 1. */
+	if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= TMP_REG3) {
+		src1_r = src1;
+		flags |= REG1_SOURCE;
+	}
+	else if (src1 & SLJIT_IMM) {
+		if (src1w) {
+			FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w));
+			src1_r = TMP_REG1;
+		}
+		else
+			src1_r = 0;
+	}
+	else {
+		if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w))
+			FAIL_IF(compiler->error);
+		else
+			flags |= SLOW_SRC1;
+		src1_r = TMP_REG1;
+	}
+
+	/* Source 2. */
+	if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) {
+		src2_r = src2;
+		flags |= REG2_SOURCE;
+		if (!(flags & REG_DEST) && GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)
+			dst_r = src2_r;
+	}
+	else if (src2 & SLJIT_IMM) {
+		if (!(flags & SRC2_IMM)) {
+			if (src2w || (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)) {
+				FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w));
+				src2_r = sugg_src2_r;
+			}
+			else
+				src2_r = 0;
+		}
+	}
+	else {
+		if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w))
+			FAIL_IF(compiler->error);
+		else
+			flags |= SLOW_SRC2;
+		src2_r = sugg_src2_r;
+	}
+
+	if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
+		SLJIT_ASSERT(src2_r == TMP_REG2);
+		if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
+			FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w));
+			FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
+		}
+		else {
+			FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w));
+			FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw));
+		}
+	}
+	else if (flags & SLOW_SRC1)
+		FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
+	else if (flags & SLOW_SRC2)
+		FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw));
+
+	FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
+
+	if (dst & SLJIT_MEM) {
+		if (!(flags & SLOW_DEST)) {
+			getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw);
+			return compiler->error;
+		}
+		return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op0(compiler, op);
+
+	op = GET_OPCODE(op);
+	switch (op) {
+	case SLJIT_BREAKPOINT:
+		return push_inst(compiler, BREAK, UNMOVABLE_INS);
+	case SLJIT_NOP:
+		return push_inst(compiler, NOP, UNMOVABLE_INS);
+	case SLJIT_UMUL:
+	case SLJIT_SMUL:
+		FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? MULTU : MULT) | S(SLJIT_TEMPORARY_REG1) | T(SLJIT_TEMPORARY_REG2), MOVABLE_INS));
+		FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_TEMPORARY_REG1), DR(SLJIT_TEMPORARY_REG1)));
+		return push_inst(compiler, MFHI | D(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG2));
+	case SLJIT_UDIV:
+	case SLJIT_SDIV:
+#if !(defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64)
+		FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
+		FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
+#endif
+		FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? DIVU : DIV) | S(SLJIT_TEMPORARY_REG1) | T(SLJIT_TEMPORARY_REG2), MOVABLE_INS));
+		FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_TEMPORARY_REG1), DR(SLJIT_TEMPORARY_REG1)));
+		return push_inst(compiler, MFHI | D(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG2));
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+	#define inp_flags 0
+#endif
+
+	CHECK_ERROR();
+	check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	SLJIT_COMPILE_ASSERT(SLJIT_MOV + 7 == SLJIT_MOVU, movu_offset);
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_MOV:
+		return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOV_UI:
+		return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOV_SI:
+		return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOV_UB:
+		return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
+
+	case SLJIT_MOV_SB:
+		return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
+
+	case SLJIT_MOV_UH:
+		return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
+
+	case SLJIT_MOV_SH:
+		return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
+
+	case SLJIT_MOVU:
+		return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOVU_UI:
+		return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOVU_SI:
+		return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOVU_UB:
+		return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
+
+	case SLJIT_MOVU_SB:
+		return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
+
+	case SLJIT_MOVU_UH:
+		return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
+
+	case SLJIT_MOVU_SH:
+		return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
+
+	case SLJIT_NOT:
+		return emit_op(compiler, op, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_NEG:
+		return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), inp_flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
+
+	case SLJIT_CLZ:
+		return emit_op(compiler, op, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
+	}
+
+	return SLJIT_SUCCESS;
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+	#undef inp_flags
+#endif
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+	#define inp_flags 0
+#endif
+
+	CHECK_ERROR();
+	check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src1, src1w);
+	ADJUST_LOCAL_OFFSET(src2, src2w);
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_ADD:
+	case SLJIT_ADDC:
+		return emit_op(compiler, op, inp_flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_SUB:
+	case SLJIT_SUBC:
+		return emit_op(compiler, op, inp_flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_MUL:
+		return emit_op(compiler, op, inp_flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_AND:
+	case SLJIT_OR:
+	case SLJIT_XOR:
+		return emit_op(compiler, op, inp_flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_SHL:
+	case SLJIT_LSHR:
+	case SLJIT_ASHR:
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+		if (src2 & SLJIT_IMM)
+			src2w &= 0x1f;
+#else
+		if (src2 & SLJIT_IMM)
+			src2w &= 0x3f;
+#endif
+		return emit_op(compiler, op, inp_flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
+	}
+
+	return SLJIT_SUCCESS;
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+	#undef inp_flags
+#endif
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
+{
+	check_sljit_get_register_index(reg);
+	return reg_map[reg];
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
+	void *instruction, int size)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op_custom(compiler, instruction, size);
+	SLJIT_ASSERT(size == 4);
+
+	return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Floating point operators                                             */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
+{
+#if (defined SLJIT_QEMU && SLJIT_QEMU)
+	/* Qemu says fir is 0 by default. */
+	return 1;
+#elif defined(__GNUC__)
+	sljit_w fir;
+	asm ("cfc1 %0, $0" : "=r"(fir));
+	return (fir >> 22) & 0x1;
+#else
+#error "FIR check is not implemented for this architecture"
+#endif
+}
+
+static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw)
+{
+	int hi_reg;
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	/* Fast loads and stores. */
+	if (!(arg & 0xf0)) {
+		/* Both for (arg & 0xf) == SLJIT_UNUSED and (arg & 0xf) != SLJIT_UNUSED. */
+		if (argw <= SIMM_MAX && argw >= SIMM_MIN)
+			return push_inst(compiler, (load ? LDC1 : SDC1) | S(arg & 0xf) | FT(fpu_reg) | IMM(argw), MOVABLE_INS);
+	}
+
+	if (arg & 0xf0) {
+		argw &= 0x3;
+		hi_reg = (arg >> 4) & 0xf;
+		if (argw) {
+			FAIL_IF(push_inst(compiler, SLL_W | T(hi_reg) | D(TMP_REG1) | SH_IMM(argw), DR(TMP_REG1)));
+			hi_reg = TMP_REG1;
+		}
+		FAIL_IF(push_inst(compiler, ADDU_W | S(hi_reg) | T(arg & 0xf) | D(TMP_REG1), DR(TMP_REG1)));
+		return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG1) | FT(fpu_reg) | IMM(0), MOVABLE_INS);
+	}
+
+	/* Use cache. */
+	if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN)
+		return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG3) | FT(fpu_reg) | IMM(argw - compiler->cache_argw), MOVABLE_INS);
+
+	/* Put value to cache. */
+	compiler->cache_arg = arg;
+	compiler->cache_argw = argw;
+
+	FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
+	if (arg & 0xf)
+		FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(arg & 0xf) | D(TMP_REG3), DR(TMP_REG3)));
+	return push_inst(compiler, (load ? LDC1 : SDC1) | S(TMP_REG3) | FT(fpu_reg) | IMM(0), MOVABLE_INS);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	int dst_fr;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	if (GET_OPCODE(op) == SLJIT_FCMP) {
+		if (dst > SLJIT_FLOAT_REG4) {
+			FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw));
+			dst = TMP_FREG1;
+		}
+		if (src > SLJIT_FLOAT_REG4) {
+			FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw));
+			src = TMP_FREG2;
+		}
+
+		/* src and dst are swapped. */
+		if (op & SLJIT_SET_E) {
+			FAIL_IF(push_inst(compiler, C_UEQ_D | FT(src) | FS(dst), UNMOVABLE_INS));
+			FAIL_IF(push_inst(compiler, CFC1 | TA(EQUAL_FLAG) | DA(FCSR_REG), EQUAL_FLAG));
+			FAIL_IF(push_inst(compiler, SRL | TA(EQUAL_FLAG) | DA(EQUAL_FLAG) | SH_IMM(23), EQUAL_FLAG));
+			FAIL_IF(push_inst(compiler, ANDI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG));
+		}
+		if (op & SLJIT_SET_S) {
+			/* Mixing the instructions for the two checks. */
+			FAIL_IF(push_inst(compiler, C_ULT_D | FT(src) | FS(dst), UNMOVABLE_INS));
+			FAIL_IF(push_inst(compiler, CFC1 | TA(ULESS_FLAG) | DA(FCSR_REG), ULESS_FLAG));
+			FAIL_IF(push_inst(compiler, C_ULT_D | FT(dst) | FS(src), UNMOVABLE_INS));
+			FAIL_IF(push_inst(compiler, SRL | TA(ULESS_FLAG) | DA(ULESS_FLAG) | SH_IMM(23), ULESS_FLAG));
+			FAIL_IF(push_inst(compiler, ANDI | SA(ULESS_FLAG) | TA(ULESS_FLAG) | IMM(1), ULESS_FLAG));
+			FAIL_IF(push_inst(compiler, CFC1 | TA(UGREATER_FLAG) | DA(FCSR_REG), UGREATER_FLAG));
+			FAIL_IF(push_inst(compiler, SRL | TA(UGREATER_FLAG) | DA(UGREATER_FLAG) | SH_IMM(23), UGREATER_FLAG));
+			FAIL_IF(push_inst(compiler, ANDI | SA(UGREATER_FLAG) | TA(UGREATER_FLAG) | IMM(1), UGREATER_FLAG));
+		}
+		return push_inst(compiler, C_UN_D | FT(src) | FS(dst), FCSR_FCC);
+	}
+
+	dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
+
+	if (src > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, dst_fr, 1, src, srcw));
+		src = dst_fr;
+	}
+
+	switch (op) {
+		case SLJIT_FMOV:
+			if (src != dst_fr && dst_fr != TMP_FREG1)
+				FAIL_IF(push_inst(compiler, MOV_D | FS(src) | FD(dst_fr), MOVABLE_INS));
+			break;
+		case SLJIT_FNEG:
+			FAIL_IF(push_inst(compiler, NEG_D | FS(src) | FD(dst_fr), MOVABLE_INS));
+			break;
+		case SLJIT_FABS:
+			FAIL_IF(push_inst(compiler, ABS_D | FS(src) | FD(dst_fr), MOVABLE_INS));
+			break;
+	}
+
+	if (dst_fr == TMP_FREG1)
+		FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw));
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	int dst_fr;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
+
+	if (src2 > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w));
+		src2 = TMP_FREG2;
+	}
+
+	if (src1 > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w));
+		src1 = TMP_FREG1;
+	}
+
+	switch (op) {
+	case SLJIT_FADD:
+		FAIL_IF(push_inst(compiler, ADD_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS));
+		break;
+
+	case SLJIT_FSUB:
+		FAIL_IF(push_inst(compiler, SUB_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS));
+		break;
+
+	case SLJIT_FMUL:
+		FAIL_IF(push_inst(compiler, MUL_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS));
+		break;
+
+	case SLJIT_FDIV:
+		FAIL_IF(push_inst(compiler, DIV_D | FT(src2) | FS(src1) | FD(dst_fr), MOVABLE_INS));
+		break;
+	}
+
+	if (dst_fr == TMP_FREG1)
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw));
+
+	return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Other instructions                                                   */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_fast_enter(compiler, dst, dstw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
+		return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), DR(dst));
+	else if (dst & SLJIT_MEM)
+		return emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw);
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_fast_return(compiler, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
+		FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG));
+	else if (src & SLJIT_MEM)
+		FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw));
+	else if (src & SLJIT_IMM)
+		FAIL_IF(load_immediate(compiler, RETURN_ADDR_REG, srcw));
+
+	FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
+	return push_inst(compiler, NOP, UNMOVABLE_INS);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Conditional instructions                                             */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
+{
+	struct sljit_label *label;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_label(compiler);
+
+	if (compiler->last_label && compiler->last_label->size == compiler->size)
+		return compiler->last_label;
+
+	label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
+	PTR_FAIL_IF(!label);
+	set_label(label, compiler);
+	compiler->delay_slot = UNMOVABLE_INS;
+	return label;
+}
+
+#if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
+#define JUMP_LENGTH	4
+#else
+#define JUMP_LENGTH	7
+#endif
+
+#define BR_Z(src) \
+	inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \
+	flags = IS_BIT26_COND; \
+	delay_check = src;
+
+#define BR_NZ(src) \
+	inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \
+	flags = IS_BIT26_COND; \
+	delay_check = src;
+
+#define BR_T() \
+	inst = BC1T | JUMP_LENGTH; \
+	flags = IS_BIT16_COND; \
+	delay_check = FCSR_FCC;
+
+#define BR_F() \
+	inst = BC1F | JUMP_LENGTH; \
+	flags = IS_BIT16_COND; \
+	delay_check = FCSR_FCC;
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
+{
+	struct sljit_jump *jump;
+	sljit_ins inst;
+	int flags = 0;
+	int delay_check = UNMOVABLE_INS;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_jump(compiler, type);
+
+	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+	PTR_FAIL_IF(!jump);
+	set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
+	type &= 0xff;
+
+	switch (type) {
+	case SLJIT_C_EQUAL:
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		BR_NZ(EQUAL_FLAG);
+		break;
+	case SLJIT_C_NOT_EQUAL:
+	case SLJIT_C_FLOAT_EQUAL:
+		BR_Z(EQUAL_FLAG);
+		break;
+	case SLJIT_C_LESS:
+	case SLJIT_C_FLOAT_LESS:
+		BR_Z(ULESS_FLAG);
+		break;
+	case SLJIT_C_GREATER_EQUAL:
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		BR_NZ(ULESS_FLAG);
+		break;
+	case SLJIT_C_GREATER:
+	case SLJIT_C_FLOAT_GREATER:
+		BR_Z(UGREATER_FLAG);
+		break;
+	case SLJIT_C_LESS_EQUAL:
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		BR_NZ(UGREATER_FLAG);
+		break;
+	case SLJIT_C_SIG_LESS:
+		BR_Z(LESS_FLAG);
+		break;
+	case SLJIT_C_SIG_GREATER_EQUAL:
+		BR_NZ(LESS_FLAG);
+		break;
+	case SLJIT_C_SIG_GREATER:
+		BR_Z(GREATER_FLAG);
+		break;
+	case SLJIT_C_SIG_LESS_EQUAL:
+		BR_NZ(GREATER_FLAG);
+		break;
+	case SLJIT_C_OVERFLOW:
+	case SLJIT_C_MUL_OVERFLOW:
+		BR_Z(OVERFLOW_FLAG);
+		break;
+	case SLJIT_C_NOT_OVERFLOW:
+	case SLJIT_C_MUL_NOT_OVERFLOW:
+		BR_NZ(OVERFLOW_FLAG);
+		break;
+	case SLJIT_C_FLOAT_NAN:
+		BR_F();
+		break;
+	case SLJIT_C_FLOAT_NOT_NAN:
+		BR_T();
+		break;
+	default:
+		/* Not conditional branch. */
+		inst = 0;
+		break;
+	}
+
+	jump->flags |= flags;
+	if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check))
+		jump->flags |= IS_MOVABLE;
+
+	if (inst)
+		PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS));
+
+	PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
+	if (type <= SLJIT_JUMP) {
+		PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
+		jump->addr = compiler->size;
+		PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
+	} else {
+		SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2);
+		/* Cannot be optimized out if type is >= CALL0. */
+		jump->flags |= IS_JAL | (type >= SLJIT_CALL0 ? SLJIT_REWRITABLE_JUMP : 0);
+		PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
+		jump->addr = compiler->size;
+		/* A NOP if type < CALL1. */
+		PTR_FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), UNMOVABLE_INS));
+	}
+	return jump;
+}
+
+#define RESOLVE_IMM1() \
+	if (src1 & SLJIT_IMM) { \
+		if (src1w) { \
+			PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \
+			src1 = TMP_REG1; \
+		} \
+		else \
+			src1 = 0; \
+	}
+
+#define RESOLVE_IMM2() \
+	if (src2 & SLJIT_IMM) { \
+		if (src2w) { \
+			PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \
+			src2 = TMP_REG2; \
+		} \
+		else \
+			src2 = 0; \
+	}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	struct sljit_jump *jump;
+	int flags;
+	sljit_ins inst;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w);
+	ADJUST_LOCAL_OFFSET(src1, src1w);
+	ADJUST_LOCAL_OFFSET(src2, src2w);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+	flags = ((type & SLJIT_INT_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA;
+	if (src1 & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, flags, DR(TMP_REG1), src1, src1w))
+			PTR_FAIL_IF(compiler->error);
+		else
+			PTR_FAIL_IF(getput_arg(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w));
+		src1 = TMP_REG1;
+	}
+	if (src2 & SLJIT_MEM) {
+		if (getput_arg_fast(compiler, flags, DR(TMP_REG2), src2, src2w))
+			PTR_FAIL_IF(compiler->error);
+		else
+			PTR_FAIL_IF(getput_arg(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0));
+		src2 = TMP_REG2;
+	}
+
+	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+	PTR_FAIL_IF(!jump);
+	set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
+	type &= 0xff;
+
+	if (type <= SLJIT_C_NOT_EQUAL) {
+		RESOLVE_IMM1();
+		RESOLVE_IMM2();
+		jump->flags |= IS_BIT26_COND;
+		if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2)))
+			jump->flags |= IS_MOVABLE;
+		PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS));
+	}
+	else if (type >= SLJIT_C_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) {
+		inst = NOP;
+		if ((src1 & SLJIT_IMM) && (src1w == 0)) {
+			RESOLVE_IMM2();
+			switch (type) {
+			case SLJIT_C_SIG_LESS:
+				inst = BLEZ;
+				jump->flags |= IS_BIT26_COND;
+				break;
+			case SLJIT_C_SIG_GREATER_EQUAL:
+				inst = BGTZ;
+				jump->flags |= IS_BIT26_COND;
+				break;
+			case SLJIT_C_SIG_GREATER:
+				inst = BGEZ;
+				jump->flags |= IS_BIT16_COND;
+				break;
+			case SLJIT_C_SIG_LESS_EQUAL:
+				inst = BLTZ;
+				jump->flags |= IS_BIT16_COND;
+				break;
+			}
+			src1 = src2;
+		}
+		else {
+			RESOLVE_IMM1();
+			switch (type) {
+			case SLJIT_C_SIG_LESS:
+				inst = BGEZ;
+				jump->flags |= IS_BIT16_COND;
+				break;
+			case SLJIT_C_SIG_GREATER_EQUAL:
+				inst = BLTZ;
+				jump->flags |= IS_BIT16_COND;
+				break;
+			case SLJIT_C_SIG_GREATER:
+				inst = BLEZ;
+				jump->flags |= IS_BIT26_COND;
+				break;
+			case SLJIT_C_SIG_LESS_EQUAL:
+				inst = BGTZ;
+				jump->flags |= IS_BIT26_COND;
+				break;
+			}
+		}
+		PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS));
+	}
+	else {
+		if (type == SLJIT_C_LESS || type == SLJIT_C_GREATER_EQUAL || type == SLJIT_C_SIG_LESS || type == SLJIT_C_SIG_GREATER_EQUAL) {
+			RESOLVE_IMM1();
+			if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN)
+				PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1)));
+			else {
+				RESOLVE_IMM2();
+				PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1)));
+			}
+			type = (type == SLJIT_C_LESS || type == SLJIT_C_SIG_LESS) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL;
+		}
+		else {
+			RESOLVE_IMM2();
+			if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN)
+				PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1)));
+			else {
+				RESOLVE_IMM1();
+				PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_C_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1)));
+			}
+			type = (type == SLJIT_C_GREATER || type == SLJIT_C_SIG_GREATER) ? SLJIT_C_NOT_EQUAL : SLJIT_C_EQUAL;
+		}
+
+		jump->flags |= IS_BIT26_COND;
+		PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_C_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS));
+	}
+
+	PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
+	PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
+	jump->addr = compiler->size;
+	PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
+	return jump;
+}
+
+#undef RESOLVE_IMM1
+#undef RESOLVE_IMM2
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, int type,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	struct sljit_jump *jump;
+	sljit_ins inst;
+	int if_true;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_fcmp(compiler, type, src1, src1w, src2, src2w);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	if (src1 > SLJIT_FLOAT_REG4) {
+		PTR_FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w));
+		src1 = TMP_FREG1;
+	}
+	if (src2 > SLJIT_FLOAT_REG4) {
+		PTR_FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w));
+		src2 = TMP_FREG2;
+	}
+
+	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+	PTR_FAIL_IF(!jump);
+	set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
+	jump->flags |= IS_BIT16_COND;
+	type &= 0xff;
+
+	switch (type) {
+	case SLJIT_C_FLOAT_EQUAL:
+		inst = C_UEQ_D;
+		if_true = 1;
+		break;
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		inst = C_UEQ_D;
+		if_true = 0;
+		break;
+	case SLJIT_C_FLOAT_LESS:
+		inst = C_ULT_D;
+		if_true = 1;
+		break;
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		inst = C_ULT_D;
+		if_true = 0;
+		break;
+	case SLJIT_C_FLOAT_GREATER:
+		inst = C_ULE_D;
+		if_true = 0;
+		break;
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		inst = C_ULE_D;
+		if_true = 1;
+		break;
+	case SLJIT_C_FLOAT_NAN:
+		inst = C_UN_D;
+		if_true = 1;
+		break;
+	case SLJIT_C_FLOAT_NOT_NAN:
+	default: /* Make compilers happy. */
+		inst = C_UN_D;
+		if_true = 0;
+		break;
+	}
+
+	PTR_FAIL_IF(push_inst(compiler, inst | FT(src2) | FS(src1), UNMOVABLE_INS));
+	/* Intentionally the other opcode. */
+	PTR_FAIL_IF(push_inst(compiler, (if_true ? BC1F : BC1T) | JUMP_LENGTH, UNMOVABLE_INS));
+	PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
+	PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
+	jump->addr = compiler->size;
+	PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
+	return jump;
+}
+
+#undef JUMP_LENGTH
+#undef BR_Z
+#undef BR_NZ
+#undef BR_T
+#undef BR_F
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
+{
+	int src_r = TMP_REG2;
+	struct sljit_jump *jump = NULL;
+
+	CHECK_ERROR();
+	check_sljit_emit_ijump(compiler, type, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) {
+		if (DR(src) != 4)
+			src_r = src;
+		else
+			FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
+	}
+
+	if (type >= SLJIT_CALL0) {
+		SLJIT_ASSERT(DR(PIC_ADDR_REG) == 25 && PIC_ADDR_REG == TMP_REG2);
+		if (src & (SLJIT_IMM | SLJIT_MEM)) {
+			if (src & SLJIT_IMM)
+				FAIL_IF(load_immediate(compiler, DR(PIC_ADDR_REG), srcw));
+			else {
+				SLJIT_ASSERT(src_r == TMP_REG2 && (src & SLJIT_MEM));
+				FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
+			}
+			FAIL_IF(push_inst(compiler, JALR | S(PIC_ADDR_REG) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
+			/* We need an extra instruction in any case. */
+			return push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), UNMOVABLE_INS);
+		}
+
+		/* Register input. */
+		if (type >= SLJIT_CALL1)
+			FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_TEMPORARY_REG1) | TA(0) | DA(4), 4));
+		FAIL_IF(push_inst(compiler, JALR | S(src_r) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
+		return push_inst(compiler, ADDU_W | S(src_r) | TA(0) | D(PIC_ADDR_REG), UNMOVABLE_INS);
+	}
+
+	if (src & SLJIT_IMM) {
+		jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+		FAIL_IF(!jump);
+		set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0));
+		jump->u.target = srcw;
+
+		if (compiler->delay_slot != UNMOVABLE_INS)
+			jump->flags |= IS_MOVABLE;
+
+		FAIL_IF(emit_const(compiler, TMP_REG2, 0));
+	}
+	else if (src & SLJIT_MEM)
+		FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
+
+	FAIL_IF(push_inst(compiler, JR | S(src_r), UNMOVABLE_INS));
+	if (jump)
+		jump->addr = compiler->size;
+	FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
+{
+	int sugg_dst_ar, dst_ar;
+
+	CHECK_ERROR();
+	check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	if (dst == SLJIT_UNUSED)
+		return SLJIT_SUCCESS;
+
+	sugg_dst_ar = DR((op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2);
+
+	switch (type) {
+	case SLJIT_C_EQUAL:
+	case SLJIT_C_NOT_EQUAL:
+		FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar));
+		dst_ar = sugg_dst_ar;
+		break;
+	case SLJIT_C_LESS:
+	case SLJIT_C_GREATER_EQUAL:
+	case SLJIT_C_FLOAT_LESS:
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		dst_ar = ULESS_FLAG;
+		break;
+	case SLJIT_C_GREATER:
+	case SLJIT_C_LESS_EQUAL:
+	case SLJIT_C_FLOAT_GREATER:
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		dst_ar = UGREATER_FLAG;
+		break;
+	case SLJIT_C_SIG_LESS:
+	case SLJIT_C_SIG_GREATER_EQUAL:
+		dst_ar = LESS_FLAG;
+		break;
+	case SLJIT_C_SIG_GREATER:
+	case SLJIT_C_SIG_LESS_EQUAL:
+		dst_ar = GREATER_FLAG;
+		break;
+	case SLJIT_C_OVERFLOW:
+	case SLJIT_C_NOT_OVERFLOW:
+		dst_ar = OVERFLOW_FLAG;
+		break;
+	case SLJIT_C_MUL_OVERFLOW:
+	case SLJIT_C_MUL_NOT_OVERFLOW:
+		FAIL_IF(push_inst(compiler, SLTIU | SA(OVERFLOW_FLAG) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar));
+		dst_ar = sugg_dst_ar;
+		type ^= 0x1; /* Flip type bit for the XORI below. */
+		break;
+	case SLJIT_C_FLOAT_EQUAL:
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		dst_ar = EQUAL_FLAG;
+		break;
+
+	case SLJIT_C_FLOAT_NAN:
+	case SLJIT_C_FLOAT_NOT_NAN:
+		FAIL_IF(push_inst(compiler, CFC1 | TA(sugg_dst_ar) | DA(FCSR_REG), sugg_dst_ar));
+		FAIL_IF(push_inst(compiler, SRL | TA(sugg_dst_ar) | DA(sugg_dst_ar) | SH_IMM(23), sugg_dst_ar));
+		FAIL_IF(push_inst(compiler, ANDI | SA(sugg_dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar));
+		dst_ar = sugg_dst_ar;
+		break;
+
+	default:
+		SLJIT_ASSERT_STOP();
+		dst_ar = sugg_dst_ar;
+		break;
+	}
+
+	if (type & 0x1) {
+		FAIL_IF(push_inst(compiler, XORI | SA(dst_ar) | TA(sugg_dst_ar) | IMM(1), sugg_dst_ar));
+		dst_ar = sugg_dst_ar;
+	}
+
+	if (GET_OPCODE(op) == SLJIT_OR) {
+		if (DR(TMP_REG2) != dst_ar)
+			FAIL_IF(push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
+		return emit_op(compiler, op, CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, dst, dstw, TMP_REG2, 0);
+	}
+
+	if (dst & SLJIT_MEM)
+		return emit_op_mem(compiler, WORD_DATA, dst_ar, dst, dstw);
+
+	if (sugg_dst_ar != dst_ar)
+		return push_inst(compiler, ADDU_W | SA(dst_ar) | TA(0) | DA(sugg_dst_ar), sugg_dst_ar);
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
+{
+	struct sljit_const *const_;
+	int reg;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_const(compiler, dst, dstw, init_value);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
+	PTR_FAIL_IF(!const_);
+	set_const(const_, compiler);
+
+	reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
+
+	PTR_FAIL_IF(emit_const(compiler, reg, init_value));
+
+	if (dst & SLJIT_MEM)
+		PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
+	return const_;
+}
diff --git a/8.31/sljit/sljitNativePPC_32.c b/8.31/sljit/sljitNativePPC_32.c
new file mode 100644
index 0000000..82d0508
--- /dev/null
+++ b/8.31/sljit/sljitNativePPC_32.c
@@ -0,0 +1,262 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* ppc 32-bit arch dependent functions. */
+
+static int load_immediate(struct sljit_compiler *compiler, int reg, sljit_w imm)
+{
+	if (imm <= SIMM_MAX && imm >= SIMM_MIN)
+		return push_inst(compiler, ADDI | D(reg) | A(0) | IMM(imm));
+
+	if (!(imm & ~0xffff))
+		return push_inst(compiler, ORI | S(ZERO_REG) | A(reg) | IMM(imm));
+
+	FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(imm >> 16)));
+	return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm)) : SLJIT_SUCCESS;
+}
+
+#define INS_CLEAR_LEFT(dst, src, from) \
+	(RLWINM | S(src) | A(dst) | ((from) << 6) | (31 << 1))
+
+static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags,
+	int dst, int src1, int src2)
+{
+	switch (op) {
+	case SLJIT_ADD:
+		if (flags & ALT_FORM1) {
+			/* Flags does not set: BIN_IMM_EXTS unnecessary. */
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ADDI | D(dst) | A(src1) | compiler->imm);
+		}
+		if (flags & ALT_FORM2) {
+			/* Flags does not set: BIN_IMM_EXTS unnecessary. */
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ADDIS | D(dst) | A(src1) | compiler->imm);
+		}
+		if (flags & ALT_FORM3) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ADDIC | D(dst) | A(src1) | compiler->imm);
+		}
+		if (flags & ALT_FORM4) {
+			/* Flags does not set: BIN_IMM_EXTS unnecessary. */
+			FAIL_IF(push_inst(compiler, ADDI | D(dst) | A(src1) | (compiler->imm & 0xffff)));
+			return push_inst(compiler, ADDIS | D(dst) | A(dst) | (((compiler->imm >> 16) & 0xffff) + ((compiler->imm >> 15) & 0x1)));
+		}
+		if (!(flags & ALT_SET_FLAGS))
+			return push_inst(compiler, ADD | D(dst) | A(src1) | B(src2));
+		return push_inst(compiler, ADDC | OERC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2));
+
+	case SLJIT_ADDC:
+		if (flags & ALT_FORM1) {
+			FAIL_IF(push_inst(compiler, MFXER | S(0)));
+			FAIL_IF(push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2)));
+			return push_inst(compiler, MTXER | S(0));
+		}
+		return push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2));
+
+	case SLJIT_SUB:
+		if (flags & ALT_FORM1) {
+			/* Flags does not set: BIN_IMM_EXTS unnecessary. */
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, SUBFIC | D(dst) | A(src1) | compiler->imm);
+		}
+		if (flags & (ALT_FORM2 | ALT_FORM3)) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			if (flags & ALT_FORM2)
+				FAIL_IF(push_inst(compiler, CMPI | CRD(0) | A(src1) | compiler->imm));
+			if (flags & ALT_FORM3)
+				return push_inst(compiler, CMPLI | CRD(4) | A(src1) | compiler->imm);
+			return SLJIT_SUCCESS;
+		}
+		if (flags & (ALT_FORM4 | ALT_FORM5)) {
+			if (flags & ALT_FORM4)
+				FAIL_IF(push_inst(compiler, CMPL | CRD(4) | A(src1) | B(src2)));
+			if (flags & ALT_FORM5)
+				FAIL_IF(push_inst(compiler, CMP | CRD(0) | A(src1) | B(src2)));
+			return SLJIT_SUCCESS;
+		}
+		if (!(flags & ALT_SET_FLAGS))
+			return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
+		if (flags & ALT_FORM6)
+			FAIL_IF(push_inst(compiler, CMPL | CRD(4) | A(src1) | B(src2)));
+		return push_inst(compiler, SUBFC | OERC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
+
+	case SLJIT_SUBC:
+		if (flags & ALT_FORM1) {
+			FAIL_IF(push_inst(compiler, MFXER | S(0)));
+			FAIL_IF(push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1)));
+			return push_inst(compiler, MTXER | S(0));
+		}
+		return push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1));
+
+	case SLJIT_MUL:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, MULLI | D(dst) | A(src1) | compiler->imm);
+		}
+		return push_inst(compiler, MULLW | OERC(flags) | D(dst) | A(src2) | B(src1));
+
+	case SLJIT_AND:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ANDI | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM2) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ANDIS | S(src1) | A(dst) | compiler->imm);
+		}
+		return push_inst(compiler, AND | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_OR:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ORI | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM2) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ORIS | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM3) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			FAIL_IF(push_inst(compiler, ORI | S(src1) | A(dst) | IMM(compiler->imm)));
+			return push_inst(compiler, ORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
+		}
+		return push_inst(compiler, OR | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_XOR:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, XORI | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM2) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, XORIS | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM3) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			FAIL_IF(push_inst(compiler, XORI | S(src1) | A(dst) | IMM(compiler->imm)));
+			return push_inst(compiler, XORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
+		}
+		return push_inst(compiler, XOR | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_SHL:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			compiler->imm &= 0x1f;
+			return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11) | ((31 - compiler->imm) << 1));
+		}
+		return push_inst(compiler, SLW | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_LSHR:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			compiler->imm &= 0x1f;
+			return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (((32 - compiler->imm) & 0x1f) << 11) | (compiler->imm << 6) | (31 << 1));
+		}
+		return push_inst(compiler, SRW | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_ASHR:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			compiler->imm &= 0x1f;
+			return push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11));
+		}
+		return push_inst(compiler, SRAW | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_MOV:
+	case SLJIT_MOV_UI:
+	case SLJIT_MOV_SI:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if (dst != src2)
+			return push_inst(compiler, OR | S(src2) | A(dst) | B(src2));
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UB:
+	case SLJIT_MOV_SB:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+			if (op == SLJIT_MOV_SB)
+				return push_inst(compiler, EXTSB | S(src2) | A(dst));
+			return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 24));
+		}
+		else if ((flags & REG_DEST) && op == SLJIT_MOV_SB)
+			return push_inst(compiler, EXTSB | S(src2) | A(dst));
+		else if (dst != src2)
+			SLJIT_ASSERT_STOP();
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UH:
+	case SLJIT_MOV_SH:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+			if (op == SLJIT_MOV_SH)
+				return push_inst(compiler, EXTSH | S(src2) | A(dst));
+			return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 16));
+		}
+		else if (dst != src2)
+			SLJIT_ASSERT_STOP();
+		return SLJIT_SUCCESS;
+
+	case SLJIT_NOT:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		return push_inst(compiler, NOR | RC(flags) | S(src2) | A(dst) | B(src2));
+
+	case SLJIT_NEG:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		return push_inst(compiler, NEG | OERC(flags) | D(dst) | A(src2));
+
+	case SLJIT_CLZ:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		return push_inst(compiler, CNTLZW | RC(flags) | S(src2) | A(dst));
+	}
+
+	SLJIT_ASSERT_STOP();
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int emit_const(struct sljit_compiler *compiler, int reg, sljit_w init_value)
+{
+	FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(init_value >> 16)));
+	return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+	sljit_ins *inst = (sljit_ins*)addr;
+
+	inst[0] = (inst[0] & 0xffff0000) | ((new_addr >> 16) & 0xffff);
+	inst[1] = (inst[1] & 0xffff0000) | (new_addr & 0xffff);
+	SLJIT_CACHE_FLUSH(inst, inst + 2);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
+{
+	sljit_ins *inst = (sljit_ins*)addr;
+
+	inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 16) & 0xffff);
+	inst[1] = (inst[1] & 0xffff0000) | (new_constant & 0xffff);
+	SLJIT_CACHE_FLUSH(inst, inst + 2);
+}
diff --git a/8.31/sljit/sljitNativePPC_64.c b/8.31/sljit/sljitNativePPC_64.c
new file mode 100644
index 0000000..cc2ae37
--- /dev/null
+++ b/8.31/sljit/sljitNativePPC_64.c
@@ -0,0 +1,428 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* ppc 64-bit arch dependent functions. */
+
+#ifdef __GNUC__
+#define ASM_SLJIT_CLZ(src, dst) \
+	asm volatile ( "cntlzd %0, %1" : "=r"(dst) : "r"(src) )
+#else
+#error "Must implement count leading zeroes"
+#endif
+
+#define RLDI(dst, src, sh, mb, type) \
+	(HI(30) | S(src) | A(dst) | ((type) << 2) | (((sh) & 0x1f) << 11) | (((sh) & 0x20) >> 4) | (((mb) & 0x1f) << 6) | ((mb) & 0x20))
+
+#define PUSH_RLDICR(reg, shift) \
+	push_inst(compiler, RLDI(reg, reg, 63 - shift, shift, 1))
+
+static int load_immediate(struct sljit_compiler *compiler, int reg, sljit_w imm)
+{
+	sljit_uw tmp;
+	sljit_uw shift;
+	sljit_uw tmp2;
+	sljit_uw shift2;
+
+	if (imm <= SIMM_MAX && imm >= SIMM_MIN)
+		return push_inst(compiler, ADDI | D(reg) | A(0) | IMM(imm));
+
+	if (!(imm & ~0xffff))
+		return push_inst(compiler, ORI | S(ZERO_REG) | A(reg) | IMM(imm));
+
+	if (imm <= SLJIT_W(0x7fffffff) && imm >= SLJIT_W(-0x80000000)) {
+		FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(imm >> 16)));
+		return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm)) : SLJIT_SUCCESS;
+	}
+
+	/* Count leading zeroes. */
+	tmp = (imm >= 0) ? imm : ~imm;
+	ASM_SLJIT_CLZ(tmp, shift);
+	SLJIT_ASSERT(shift > 0);
+	shift--;
+	tmp = (imm << shift);
+
+	if ((tmp & ~0xffff000000000000ul) == 0) {
+		FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
+		shift += 15;
+		return PUSH_RLDICR(reg, shift);
+	}
+
+	if ((tmp & ~0xffffffff00000000ul) == 0) {
+		FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(tmp >> 48)));
+		FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp >> 32)));
+		shift += 31;
+		return PUSH_RLDICR(reg, shift);
+	}
+
+	/* Cut out the 16 bit from immediate. */
+	shift += 15;
+	tmp2 = imm & ((1ul << (63 - shift)) - 1);
+
+	if (tmp2 <= 0xffff) {
+		FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
+		FAIL_IF(PUSH_RLDICR(reg, shift));
+		return push_inst(compiler, ORI | S(reg) | A(reg) | tmp2);
+	}
+
+	if (tmp2 <= 0xffffffff) {
+		FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
+		FAIL_IF(PUSH_RLDICR(reg, shift));
+		FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | (tmp2 >> 16)));
+		return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp2)) : SLJIT_SUCCESS;
+	}
+
+	ASM_SLJIT_CLZ(tmp2, shift2);
+	tmp2 <<= shift2;
+
+	if ((tmp2 & ~0xffff000000000000ul) == 0) {
+		FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
+		shift2 += 15;
+		shift += (63 - shift2);
+		FAIL_IF(PUSH_RLDICR(reg, shift));
+		FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | (tmp2 >> 48)));
+		return PUSH_RLDICR(reg, shift2);
+	}
+
+	/* The general version. */
+	FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(imm >> 48)));
+	FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm >> 32)));
+	FAIL_IF(PUSH_RLDICR(reg, 31));
+	FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(imm >> 16)));
+	return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm));
+}
+
+/* Simplified mnemonics: clrldi. */
+#define INS_CLEAR_LEFT(dst, src, from) \
+	(RLDICL | S(src) | A(dst) | ((from) << 6) | (1 << 5))
+
+/* Sign extension for integer operations. */
+#define UN_EXTS() \
+	if ((flags & (ALT_SIGN_EXT | REG2_SOURCE)) == (ALT_SIGN_EXT | REG2_SOURCE)) { \
+		FAIL_IF(push_inst(compiler, EXTSW | S(src2) | A(TMP_REG2))); \
+		src2 = TMP_REG2; \
+	}
+
+#define BIN_EXTS() \
+	if (flags & ALT_SIGN_EXT) { \
+		if (flags & REG1_SOURCE) { \
+			FAIL_IF(push_inst(compiler, EXTSW | S(src1) | A(TMP_REG1))); \
+			src1 = TMP_REG1; \
+		} \
+		if (flags & REG2_SOURCE) { \
+			FAIL_IF(push_inst(compiler, EXTSW | S(src2) | A(TMP_REG2))); \
+			src2 = TMP_REG2; \
+		} \
+	}
+
+#define BIN_IMM_EXTS() \
+	if ((flags & (ALT_SIGN_EXT | REG1_SOURCE)) == (ALT_SIGN_EXT | REG1_SOURCE)) { \
+		FAIL_IF(push_inst(compiler, EXTSW | S(src1) | A(TMP_REG1))); \
+		src1 = TMP_REG1; \
+	}
+
+static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags,
+	int dst, int src1, int src2)
+{
+	switch (op) {
+	case SLJIT_ADD:
+		if (flags & ALT_FORM1) {
+			/* Flags does not set: BIN_IMM_EXTS unnecessary. */
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ADDI | D(dst) | A(src1) | compiler->imm);
+		}
+		if (flags & ALT_FORM2) {
+			/* Flags does not set: BIN_IMM_EXTS unnecessary. */
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ADDIS | D(dst) | A(src1) | compiler->imm);
+		}
+		if (flags & ALT_FORM3) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			BIN_IMM_EXTS();
+			return push_inst(compiler, ADDIC | D(dst) | A(src1) | compiler->imm);
+		}
+		if (flags & ALT_FORM4) {
+			/* Flags does not set: BIN_IMM_EXTS unnecessary. */
+			FAIL_IF(push_inst(compiler, ADDI | D(dst) | A(src1) | (compiler->imm & 0xffff)));
+			return push_inst(compiler, ADDIS | D(dst) | A(dst) | (((compiler->imm >> 16) & 0xffff) + ((compiler->imm >> 15) & 0x1)));
+		}
+		if (!(flags & ALT_SET_FLAGS))
+			return push_inst(compiler, ADD | D(dst) | A(src1) | B(src2));
+		BIN_EXTS();
+		return push_inst(compiler, ADDC | OERC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2));
+
+	case SLJIT_ADDC:
+		if (flags & ALT_FORM1) {
+			FAIL_IF(push_inst(compiler, MFXER | S(0)));
+			FAIL_IF(push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2)));
+			return push_inst(compiler, MTXER | S(0));
+		}
+		BIN_EXTS();
+		return push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2));
+
+	case SLJIT_SUB:
+		if (flags & ALT_FORM1) {
+			/* Flags does not set: BIN_IMM_EXTS unnecessary. */
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, SUBFIC | D(dst) | A(src1) | compiler->imm);
+		}
+		if (flags & (ALT_FORM2 | ALT_FORM3)) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			if (flags & ALT_FORM2)
+				FAIL_IF(push_inst(compiler, CMPI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm));
+			if (flags & ALT_FORM3)
+				return push_inst(compiler, CMPLI | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm);
+			return SLJIT_SUCCESS;
+		}
+		if (flags & (ALT_FORM4 | ALT_FORM5)) {
+			if (flags & ALT_FORM4)
+				FAIL_IF(push_inst(compiler, CMPL | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
+			if (flags & ALT_FORM5)
+				return push_inst(compiler, CMP | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2));
+			return SLJIT_SUCCESS;
+		}
+		if (!(flags & ALT_SET_FLAGS))
+			return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
+		BIN_EXTS();
+		if (flags & ALT_FORM6)
+			FAIL_IF(push_inst(compiler, CMPL | CRD(4 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
+		return push_inst(compiler, SUBFC | OERC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
+
+	case SLJIT_SUBC:
+		if (flags & ALT_FORM1) {
+			FAIL_IF(push_inst(compiler, MFXER | S(0)));
+			FAIL_IF(push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1)));
+			return push_inst(compiler, MTXER | S(0));
+		}
+		BIN_EXTS();
+		return push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1));
+
+	case SLJIT_MUL:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, MULLI | D(dst) | A(src1) | compiler->imm);
+		}
+		BIN_EXTS();
+		if (flags & ALT_FORM2)
+			return push_inst(compiler, MULLW | OERC(flags) | D(dst) | A(src2) | B(src1));
+		return push_inst(compiler, MULLD | OERC(flags) | D(dst) | A(src2) | B(src1));
+
+	case SLJIT_AND:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ANDI | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM2) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ANDIS | S(src1) | A(dst) | compiler->imm);
+		}
+		return push_inst(compiler, AND | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_OR:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ORI | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM2) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, ORIS | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM3) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			FAIL_IF(push_inst(compiler, ORI | S(src1) | A(dst) | IMM(compiler->imm)));
+			return push_inst(compiler, ORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
+		}
+		return push_inst(compiler, OR | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_XOR:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, XORI | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM2) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			return push_inst(compiler, XORIS | S(src1) | A(dst) | compiler->imm);
+		}
+		if (flags & ALT_FORM3) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			FAIL_IF(push_inst(compiler, XORI | S(src1) | A(dst) | IMM(compiler->imm)));
+			return push_inst(compiler, XORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
+		}
+		return push_inst(compiler, XOR | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_SHL:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			if (flags & ALT_FORM2) {
+				compiler->imm &= 0x1f;
+				return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11) | ((31 - compiler->imm) << 1));
+			}
+			else {
+				compiler->imm &= 0x3f;
+				return push_inst(compiler, RLDI(dst, src1, compiler->imm, 63 - compiler->imm, 1) | RC(flags));
+			}
+		}
+		if (flags & ALT_FORM2)
+			return push_inst(compiler, SLW | RC(flags) | S(src1) | A(dst) | B(src2));
+		return push_inst(compiler, SLD | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_LSHR:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			if (flags & ALT_FORM2) {
+				compiler->imm &= 0x1f;
+				return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (((32 - compiler->imm) & 0x1f) << 11) | (compiler->imm << 6) | (31 << 1));
+			}
+			else {
+				compiler->imm &= 0x3f;
+				return push_inst(compiler, RLDI(dst, src1, 64 - compiler->imm, compiler->imm, 0) | RC(flags));
+			}
+		}
+		if (flags & ALT_FORM2)
+			return push_inst(compiler, SRW | RC(flags) | S(src1) | A(dst) | B(src2));
+		return push_inst(compiler, SRD | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_ASHR:
+		if (flags & ALT_FORM1) {
+			SLJIT_ASSERT(src2 == TMP_REG2);
+			if (flags & ALT_FORM2) {
+				compiler->imm &= 0x1f;
+				return push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11));
+			}
+			else {
+				compiler->imm &= 0x3f;
+				return push_inst(compiler, SRADI | RC(flags) | S(src1) | A(dst) | ((compiler->imm & 0x1f) << 11) | ((compiler->imm & 0x20) >> 4));
+			}
+		}
+		if (flags & ALT_FORM2)
+			return push_inst(compiler, SRAW | RC(flags) | S(src1) | A(dst) | B(src2));
+		return push_inst(compiler, SRAD | RC(flags) | S(src1) | A(dst) | B(src2));
+
+	case SLJIT_MOV:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if (dst != src2)
+			return push_inst(compiler, OR | S(src2) | A(dst) | B(src2));
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UI:
+	case SLJIT_MOV_SI:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+			if (op == SLJIT_MOV_SI)
+				return push_inst(compiler, EXTSW | S(src2) | A(dst));
+			return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 0));
+		}
+		else if (dst != src2)
+			SLJIT_ASSERT_STOP();
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UB:
+	case SLJIT_MOV_SB:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+			if (op == SLJIT_MOV_SB)
+				return push_inst(compiler, EXTSB | S(src2) | A(dst));
+			return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 24));
+		}
+		else if ((flags & REG_DEST) && op == SLJIT_MOV_SB)
+			return push_inst(compiler, EXTSB | S(src2) | A(dst));
+		else if (dst != src2)
+			SLJIT_ASSERT_STOP();
+		return SLJIT_SUCCESS;
+
+	case SLJIT_MOV_UH:
+	case SLJIT_MOV_SH:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
+			if (op == SLJIT_MOV_SH)
+				return push_inst(compiler, EXTSH | S(src2) | A(dst));
+			return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 16));
+		}
+		else if (dst != src2)
+			SLJIT_ASSERT_STOP();
+		return SLJIT_SUCCESS;
+
+	case SLJIT_NOT:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		UN_EXTS();
+		return push_inst(compiler, NOR | RC(flags) | S(src2) | A(dst) | B(src2));
+
+	case SLJIT_NEG:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		UN_EXTS();
+		return push_inst(compiler, NEG | OERC(flags) | D(dst) | A(src2));
+
+	case SLJIT_CLZ:
+		SLJIT_ASSERT(src1 == TMP_REG1);
+		if (flags & ALT_FORM1)
+			return push_inst(compiler, CNTLZW | RC(flags) | S(src2) | A(dst));
+		return push_inst(compiler, CNTLZD | RC(flags) | S(src2) | A(dst));
+	}
+
+	SLJIT_ASSERT_STOP();
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int emit_const(struct sljit_compiler *compiler, int reg, sljit_w init_value)
+{
+	FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(init_value >> 48)));
+	FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value >> 32)));
+	FAIL_IF(PUSH_RLDICR(reg, 31));
+	FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(init_value >> 16)));
+	return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+	sljit_ins *inst = (sljit_ins*)addr;
+
+	inst[0] = (inst[0] & 0xffff0000) | ((new_addr >> 48) & 0xffff);
+	inst[1] = (inst[1] & 0xffff0000) | ((new_addr >> 32) & 0xffff);
+	inst[3] = (inst[3] & 0xffff0000) | ((new_addr >> 16) & 0xffff);
+	inst[4] = (inst[4] & 0xffff0000) | (new_addr & 0xffff);
+	SLJIT_CACHE_FLUSH(inst, inst + 5);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
+{
+	sljit_ins *inst = (sljit_ins*)addr;
+
+	inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 48) & 0xffff);
+	inst[1] = (inst[1] & 0xffff0000) | ((new_constant >> 32) & 0xffff);
+	inst[3] = (inst[3] & 0xffff0000) | ((new_constant >> 16) & 0xffff);
+	inst[4] = (inst[4] & 0xffff0000) | (new_constant & 0xffff);
+	SLJIT_CACHE_FLUSH(inst, inst + 5);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_function_context(void** func_ptr, struct sljit_function_context* context, sljit_w addr, void* func)
+{
+	sljit_w* ptrs;
+	if (func_ptr)
+		*func_ptr = (void*)context;
+	ptrs = (sljit_w*)func;
+	context->addr = addr ? addr : ptrs[0];
+	context->r2 = ptrs[1];
+	context->r11 = ptrs[2];
+}
diff --git a/8.31/sljit/sljitNativePPC_common.c b/8.31/sljit/sljitNativePPC_common.c
new file mode 100644
index 0000000..3f13ea8
--- /dev/null
+++ b/8.31/sljit/sljitNativePPC_common.c
@@ -0,0 +1,1865 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
+{
+	return "PowerPC" SLJIT_CPUINFO;
+}
+
+/* Length of an instruction word.
+   Both for ppc-32 and ppc-64. */
+typedef sljit_ui sljit_ins;
+
+static void ppc_cache_flush(sljit_ins *from, sljit_ins *to)
+{
+	while (from < to) {
+#ifdef __GNUC__
+		asm volatile ( "icbi 0, %0" : : "r"(from) );
+#else
+#error "Must implement icbi"
+#endif
+		from++;
+	}
+}
+
+#define TMP_REG1	(SLJIT_NO_REGISTERS + 1)
+#define TMP_REG2	(SLJIT_NO_REGISTERS + 2)
+#define TMP_REG3	(SLJIT_NO_REGISTERS + 3)
+#define ZERO_REG	(SLJIT_NO_REGISTERS + 4)
+
+#define TMP_FREG1	(SLJIT_FLOAT_REG4 + 1)
+#define TMP_FREG2	(SLJIT_FLOAT_REG4 + 2)
+
+/* --------------------------------------------------------------------- */
+/*  Instrucion forms                                                     */
+/* --------------------------------------------------------------------- */
+#define D(d)		(reg_map[d] << 21)
+#define S(s)		(reg_map[s] << 21)
+#define A(a)		(reg_map[a] << 16)
+#define B(b)		(reg_map[b] << 11)
+#define C(c)		(reg_map[c] << 6)
+#define FD(fd)		((fd) << 21)
+#define FA(fa)		((fa) << 16)
+#define FB(fb)		((fb) << 11)
+#define FC(fc)		((fc) << 6)
+#define IMM(imm)	((imm) & 0xffff)
+#define CRD(d)		((d) << 21)
+
+/* Instruction bit sections.
+   OE and Rc flag (see ALT_SET_FLAGS). */
+#define OERC(flags)	(((flags & ALT_SET_FLAGS) >> 10) | (flags & ALT_SET_FLAGS))
+/* Rc flag (see ALT_SET_FLAGS). */
+#define RC(flags)	((flags & ALT_SET_FLAGS) >> 10)
+#define HI(opcode)	((opcode) << 26)
+#define LO(opcode)	((opcode) << 1)
+
+#define ADD		(HI(31) | LO(266))
+#define ADDC		(HI(31) | LO(10))
+#define ADDE		(HI(31) | LO(138))
+#define ADDI		(HI(14))
+#define ADDIC		(HI(13))
+#define ADDIS		(HI(15))
+#define ADDME		(HI(31) | LO(234))
+#define AND		(HI(31) | LO(28))
+#define ANDI		(HI(28))
+#define ANDIS		(HI(29))
+#define Bx		(HI(18))
+#define BCx		(HI(16))
+#define BCCTR		(HI(19) | LO(528) | (3 << 11))
+#define BLR		(HI(19) | LO(16) | (0x14 << 21))
+#define CNTLZD		(HI(31) | LO(58))
+#define CNTLZW		(HI(31) | LO(26))
+#define CMP		(HI(31) | LO(0))
+#define CMPI		(HI(11))
+#define CMPL		(HI(31) | LO(32))
+#define CMPLI		(HI(10))
+#define CROR		(HI(19) | LO(449))
+#define DIVD		(HI(31) | LO(489))
+#define DIVDU		(HI(31) | LO(457))
+#define DIVW		(HI(31) | LO(491))
+#define DIVWU		(HI(31) | LO(459))
+#define EXTSB		(HI(31) | LO(954))
+#define EXTSH		(HI(31) | LO(922))
+#define EXTSW		(HI(31) | LO(986))
+#define FABS		(HI(63) | LO(264))
+#define FADD		(HI(63) | LO(21))
+#define FCMPU		(HI(63) | LO(0))
+#define FDIV		(HI(63) | LO(18))
+#define FMR		(HI(63) | LO(72))
+#define FMUL		(HI(63) | LO(25))
+#define FNEG		(HI(63) | LO(40))
+#define FSUB		(HI(63) | LO(20))
+#define LD		(HI(58) | 0)
+#define LFD		(HI(50))
+#define LFDUX		(HI(31) | LO(631))
+#define LFDX		(HI(31) | LO(599))
+#define LWZ		(HI(32))
+#define MFCR		(HI(31) | LO(19))
+#define MFLR		(HI(31) | LO(339) | 0x80000)
+#define MFXER		(HI(31) | LO(339) | 0x10000)
+#define MTCTR		(HI(31) | LO(467) | 0x90000)
+#define MTLR		(HI(31) | LO(467) | 0x80000)
+#define MTXER		(HI(31) | LO(467) | 0x10000)
+#define MULHD		(HI(31) | LO(73))
+#define MULHDU		(HI(31) | LO(9))
+#define MULHW		(HI(31) | LO(75))
+#define MULHWU		(HI(31) | LO(11))
+#define MULLD		(HI(31) | LO(233))
+#define MULLI		(HI(7))
+#define MULLW		(HI(31) | LO(235))
+#define NEG		(HI(31) | LO(104))
+#define NOP		(HI(24))
+#define NOR		(HI(31) | LO(124))
+#define OR		(HI(31) | LO(444))
+#define ORI		(HI(24))
+#define ORIS		(HI(25))
+#define RLDICL		(HI(30))
+#define RLWINM		(HI(21))
+#define SLD		(HI(31) | LO(27))
+#define SLW		(HI(31) | LO(24))
+#define SRAD		(HI(31) | LO(794))
+#define SRADI		(HI(31) | LO(413 << 1))
+#define SRAW		(HI(31) | LO(792))
+#define SRAWI		(HI(31) | LO(824))
+#define SRD		(HI(31) | LO(539))
+#define SRW		(HI(31) | LO(536))
+#define STD		(HI(62) | 0)
+#define STDU		(HI(62) | 1)
+#define STDUX		(HI(31) | LO(181))
+#define STFD		(HI(54))
+#define STFDUX		(HI(31) | LO(759))
+#define STFDX		(HI(31) | LO(727))
+#define STW		(HI(36))
+#define STWU		(HI(37))
+#define STWUX		(HI(31) | LO(183))
+#define SUBF		(HI(31) | LO(40))
+#define SUBFC		(HI(31) | LO(8))
+#define SUBFE		(HI(31) | LO(136))
+#define SUBFIC		(HI(8))
+#define XOR		(HI(31) | LO(316))
+#define XORI		(HI(26))
+#define XORIS		(HI(27))
+
+#define SIMM_MAX	(0x7fff)
+#define SIMM_MIN	(-0x8000)
+#define UIMM_MAX	(0xffff)
+
+static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 6] = {
+  0, 3, 4, 5, 6, 7, 30, 29, 28, 27, 26, 1, 8, 9, 10, 31
+};
+
+static int push_inst(struct sljit_compiler *compiler, sljit_ins ins)
+{
+	sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
+	FAIL_IF(!ptr);
+	*ptr = ins;
+	compiler->size++;
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code)
+{
+	sljit_w diff;
+	sljit_uw target_addr;
+
+	if (jump->flags & SLJIT_REWRITABLE_JUMP)
+		return 0;
+
+	if (jump->flags & JUMP_ADDR)
+		target_addr = jump->u.target;
+	else {
+		SLJIT_ASSERT(jump->flags & JUMP_LABEL);
+		target_addr = (sljit_uw)(code + jump->u.label->size);
+	}
+	diff = ((sljit_w)target_addr - (sljit_w)(code_ptr)) & ~0x3l;
+
+	if (jump->flags & UNCOND_B) {
+		if (diff <= 0x01ffffff && diff >= -0x02000000) {
+			jump->flags |= PATCH_B;
+			return 1;
+		}
+		if (target_addr <= 0x03ffffff) {
+			jump->flags |= PATCH_B | ABSOLUTE_B;
+			return 1;
+		}
+	}
+	else {
+		if (diff <= 0x7fff && diff >= -0x8000) {
+			jump->flags |= PATCH_B;
+			return 1;
+		}
+		if (target_addr <= 0xffff) {
+			jump->flags |= PATCH_B | ABSOLUTE_B;
+			return 1;
+		}
+	}
+	return 0;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+	struct sljit_memory_fragment *buf;
+	sljit_ins *code;
+	sljit_ins *code_ptr;
+	sljit_ins *buf_ptr;
+	sljit_ins *buf_end;
+	sljit_uw word_count;
+	sljit_uw addr;
+
+	struct sljit_label *label;
+	struct sljit_jump *jump;
+	struct sljit_const *const_;
+
+	CHECK_ERROR_PTR();
+	check_sljit_generate_code(compiler);
+	reverse_buf(compiler);
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	compiler->size += (compiler->size & 0x1) + (sizeof(struct sljit_function_context) / sizeof(sljit_ins));
+#endif
+	code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
+	PTR_FAIL_WITH_EXEC_IF(code);
+	buf = compiler->buf;
+
+	code_ptr = code;
+	word_count = 0;
+	label = compiler->labels;
+	jump = compiler->jumps;
+	const_ = compiler->consts;
+	do {
+		buf_ptr = (sljit_ins*)buf->memory;
+		buf_end = buf_ptr + (buf->used_size >> 2);
+		do {
+			*code_ptr = *buf_ptr++;
+			SLJIT_ASSERT(!label || label->size >= word_count);
+			SLJIT_ASSERT(!jump || jump->addr >= word_count);
+			SLJIT_ASSERT(!const_ || const_->addr >= word_count);
+			/* These structures are ordered by their address. */
+			if (label && label->size == word_count) {
+				/* Just recording the address. */
+				label->addr = (sljit_uw)code_ptr;
+				label->size = code_ptr - code;
+				label = label->next;
+			}
+			if (jump && jump->addr == word_count) {
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+				jump->addr = (sljit_uw)(code_ptr - 3);
+#else
+				jump->addr = (sljit_uw)(code_ptr - 6);
+#endif
+				if (optimize_jump(jump, code_ptr, code)) {
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+					code_ptr[-3] = code_ptr[0];
+					code_ptr -= 3;
+#else
+					code_ptr[-6] = code_ptr[0];
+					code_ptr -= 6;
+#endif
+				}
+				jump = jump->next;
+			}
+			if (const_ && const_->addr == word_count) {
+				/* Just recording the address. */
+				const_->addr = (sljit_uw)code_ptr;
+				const_ = const_->next;
+			}
+			code_ptr ++;
+			word_count ++;
+		} while (buf_ptr < buf_end);
+
+		buf = buf->next;
+	} while (buf);
+
+	if (label && label->size == word_count) {
+		label->addr = (sljit_uw)code_ptr;
+		label->size = code_ptr - code;
+		label = label->next;
+	}
+
+	SLJIT_ASSERT(!label);
+	SLJIT_ASSERT(!jump);
+	SLJIT_ASSERT(!const_);
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	SLJIT_ASSERT(code_ptr - code <= (int)compiler->size - ((compiler->size & 0x1) ? 3 : 2));
+#else
+	SLJIT_ASSERT(code_ptr - code <= (int)compiler->size);
+#endif
+
+	jump = compiler->jumps;
+	while (jump) {
+		do {
+			addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
+			buf_ptr = (sljit_ins*)jump->addr;
+			if (jump->flags & PATCH_B) {
+				if (jump->flags & UNCOND_B) {
+					if (!(jump->flags & ABSOLUTE_B)) {
+						addr = addr - jump->addr;
+						SLJIT_ASSERT((sljit_w)addr <= 0x01ffffff && (sljit_w)addr >= -0x02000000);
+						*buf_ptr = Bx | (addr & 0x03fffffc) | ((*buf_ptr) & 0x1);
+					}
+					else {
+						SLJIT_ASSERT(addr <= 0x03ffffff);
+						*buf_ptr = Bx | (addr & 0x03fffffc) | 0x2 | ((*buf_ptr) & 0x1);
+					}
+				}
+				else {
+					if (!(jump->flags & ABSOLUTE_B)) {
+						addr = addr - jump->addr;
+						SLJIT_ASSERT((sljit_w)addr <= 0x7fff && (sljit_w)addr >= -0x8000);
+						*buf_ptr = BCx | (addr & 0xfffc) | ((*buf_ptr) & 0x03ff0001);
+					}
+					else {
+						addr = addr & ~0x3l;
+						SLJIT_ASSERT(addr <= 0xffff);
+						*buf_ptr = BCx | (addr & 0xfffc) | 0x2 | ((*buf_ptr) & 0x03ff0001);
+					}
+
+				}
+				break;
+			}
+			/* Set the fields of immediate loads. */
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+			buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
+			buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
+#else
+			buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff);
+			buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff);
+			buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff);
+			buf_ptr[4] = (buf_ptr[4] & 0xffff0000) | (addr & 0xffff);
+#endif
+		} while (0);
+		jump = jump->next;
+	}
+
+	SLJIT_CACHE_FLUSH(code, code_ptr);
+	compiler->error = SLJIT_ERR_COMPILED;
+	compiler->executable_size = compiler->size * sizeof(sljit_ins);
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	if (((sljit_w)code_ptr) & 0x4)
+		code_ptr++;
+	sljit_set_function_context(NULL, (struct sljit_function_context*)code_ptr, (sljit_w)code, sljit_generate_code);
+	return code_ptr;
+#else
+	return code;
+#endif
+}
+
+/* inp_flags: */
+
+/* Creates an index in data_transfer_insts array. */
+#define WORD_DATA	0x00
+#define BYTE_DATA	0x01
+#define HALF_DATA	0x02
+#define INT_DATA	0x03
+#define SIGNED_DATA	0x04
+#define LOAD_DATA	0x08
+#define WRITE_BACK	0x10
+#define INDEXED		0x20
+
+#define MEM_MASK	0x3f
+
+/* Other inp_flags. */
+
+#define ARG_TEST	0x000100
+/* Integer opertion and set flags -> requires exts on 64 bit systems. */
+#define ALT_SIGN_EXT	0x000200
+/* This flag affects the RC() and OERC() macros. */
+#define ALT_SET_FLAGS	0x000400
+#define ALT_FORM1	0x010000
+#define ALT_FORM2	0x020000
+#define ALT_FORM3	0x040000
+#define ALT_FORM4	0x080000
+#define ALT_FORM5	0x100000
+#define ALT_FORM6	0x200000
+
+/* Source and destination is register. */
+#define REG_DEST	0x000001
+#define REG1_SOURCE	0x000002
+#define REG2_SOURCE	0x000004
+/* getput_arg_fast returned true. */
+#define FAST_DEST	0x000008
+/* Multiple instructions are required. */
+#define SLOW_DEST	0x000010
+/*
+ALT_SIGN_EXT		0x000200
+ALT_SET_FLAGS		0x000400
+ALT_FORM1		0x010000
+...
+ALT_FORM6		0x200000 */
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+#include "sljitNativePPC_32.c"
+#else
+#include "sljitNativePPC_64.c"
+#endif
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+#define STACK_STORE	STW
+#define STACK_LOAD	LWZ
+#else
+#define STACK_STORE	STD
+#define STACK_LOAD	LD
+#endif
+
+static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	CHECK_ERROR();
+	check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	FAIL_IF(push_inst(compiler, MFLR | D(0)));
+	FAIL_IF(push_inst(compiler, STACK_STORE | S(ZERO_REG) | A(SLJIT_LOCALS_REG) | IMM(-(int)(sizeof(sljit_w))) ));
+	if (saveds >= 1)
+		FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG1) | A(SLJIT_LOCALS_REG) | IMM(-2 * (int)(sizeof(sljit_w))) ));
+	if (saveds >= 2)
+		FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG2) | A(SLJIT_LOCALS_REG) | IMM(-3 * (int)(sizeof(sljit_w))) ));
+	if (saveds >= 3)
+		FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG3) | A(SLJIT_LOCALS_REG) | IMM(-4 * (int)(sizeof(sljit_w))) ));
+	if (saveds >= 4)
+		FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_EREG1) | A(SLJIT_LOCALS_REG) | IMM(-5 * (int)(sizeof(sljit_w))) ));
+	if (saveds >= 5)
+		FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_EREG2) | A(SLJIT_LOCALS_REG) | IMM(-6 * (int)(sizeof(sljit_w))) ));
+	FAIL_IF(push_inst(compiler, STACK_STORE | S(0) | A(SLJIT_LOCALS_REG) | IMM(sizeof(sljit_w)) ));
+
+	FAIL_IF(push_inst(compiler, ADDI | D(ZERO_REG) | A(0) | 0));
+	if (args >= 1)
+		FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(SLJIT_SAVED_REG1) | B(SLJIT_TEMPORARY_REG1)));
+	if (args >= 2)
+		FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG2) | A(SLJIT_SAVED_REG2) | B(SLJIT_TEMPORARY_REG2)));
+	if (args >= 3)
+		FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG3) | A(SLJIT_SAVED_REG3) | B(SLJIT_TEMPORARY_REG3)));
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+	compiler->local_size = (1 + saveds + 2) * sizeof(sljit_w) + local_size;
+#else
+	compiler->local_size = (1 + saveds + 7 + 8) * sizeof(sljit_w) + local_size;
+#endif
+	compiler->local_size = (compiler->local_size + 15) & ~0xf;
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+	if (compiler->local_size <= SIMM_MAX)
+		FAIL_IF(push_inst(compiler, STWU | S(SLJIT_LOCALS_REG) | A(SLJIT_LOCALS_REG) | IMM(-compiler->local_size)));
+	else {
+		FAIL_IF(load_immediate(compiler, 0, -compiler->local_size));
+		FAIL_IF(push_inst(compiler, STWUX | S(SLJIT_LOCALS_REG) | A(SLJIT_LOCALS_REG) | B(0)));
+	}
+#else
+	if (compiler->local_size <= SIMM_MAX)
+		FAIL_IF(push_inst(compiler, STDU | S(SLJIT_LOCALS_REG) | A(SLJIT_LOCALS_REG) | IMM(-compiler->local_size)));
+	else {
+		FAIL_IF(load_immediate(compiler, 0, -compiler->local_size));
+		FAIL_IF(push_inst(compiler, STDUX | S(SLJIT_LOCALS_REG) | A(SLJIT_LOCALS_REG) | B(0)));
+	}
+#endif
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	CHECK_ERROR_VOID();
+	check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+	compiler->local_size = (1 + saveds + 2) * sizeof(sljit_w) + local_size;
+#else
+	compiler->local_size = (1 + saveds + 7 + 8) * sizeof(sljit_w) + local_size;
+#endif
+	compiler->local_size = (compiler->local_size + 15) & ~0xf;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_return(compiler, op, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+	if (compiler->local_size <= SIMM_MAX)
+		FAIL_IF(push_inst(compiler, ADDI | D(SLJIT_LOCALS_REG) | A(SLJIT_LOCALS_REG) | IMM(compiler->local_size)));
+	else {
+		FAIL_IF(load_immediate(compiler, 0, compiler->local_size));
+		FAIL_IF(push_inst(compiler, ADD | D(SLJIT_LOCALS_REG) | A(SLJIT_LOCALS_REG) | B(0)));
+	}
+
+	FAIL_IF(push_inst(compiler, STACK_LOAD | D(0) | A(SLJIT_LOCALS_REG) | IMM(sizeof(sljit_w))));
+	if (compiler->saveds >= 5)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_EREG2) | A(SLJIT_LOCALS_REG) | IMM(-6 * (int)(sizeof(sljit_w))) ));
+	if (compiler->saveds >= 4)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_EREG1) | A(SLJIT_LOCALS_REG) | IMM(-5 * (int)(sizeof(sljit_w))) ));
+	if (compiler->saveds >= 3)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG3) | A(SLJIT_LOCALS_REG) | IMM(-4 * (int)(sizeof(sljit_w))) ));
+	if (compiler->saveds >= 2)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG2) | A(SLJIT_LOCALS_REG) | IMM(-3 * (int)(sizeof(sljit_w))) ));
+	if (compiler->saveds >= 1)
+		FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG1) | A(SLJIT_LOCALS_REG) | IMM(-2 * (int)(sizeof(sljit_w))) ));
+	FAIL_IF(push_inst(compiler, STACK_LOAD | D(ZERO_REG) | A(SLJIT_LOCALS_REG) | IMM(-(int)(sizeof(sljit_w))) ));
+
+	FAIL_IF(push_inst(compiler, MTLR | S(0)));
+	FAIL_IF(push_inst(compiler, BLR));
+
+	return SLJIT_SUCCESS;
+}
+
+#undef STACK_STORE
+#undef STACK_LOAD
+
+/* --------------------------------------------------------------------- */
+/*  Operators                                                            */
+/* --------------------------------------------------------------------- */
+
+/* i/x - immediate/indexed form
+   n/w - no write-back / write-back (1 bit)
+   s/l - store/load (1 bit)
+   u/s - signed/unsigned (1 bit)
+   w/b/h/i - word/byte/half/int allowed (2 bit)
+   It contans 32 items, but not all are different. */
+
+/* 64 bit only: [reg+imm] must be aligned to 4 bytes. */
+#define ADDR_MODE2	0x10000
+/* 64-bit only: there is no lwau instruction. */
+#define UPDATE_REQ	0x20000
+
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+#define ARCH_DEPEND(a, b)	a
+#define GET_INST_CODE(inst)	(inst)
+#else
+#define ARCH_DEPEND(a, b)	b
+#define GET_INST_CODE(index)	((inst) & ~(ADDR_MODE2 | UPDATE_REQ))
+#endif
+
+static SLJIT_CONST sljit_ins data_transfer_insts[64] = {
+
+/* No write-back. */
+
+/* i n s u w */ ARCH_DEPEND(HI(36) /* stw */, HI(62) | ADDR_MODE2 | 0x0 /* std */),
+/* i n s u b */ HI(38) /* stb */,
+/* i n s u h */ HI(44) /* sth*/,
+/* i n s u i */ HI(36) /* stw */,
+
+/* i n s s w */ ARCH_DEPEND(HI(36) /* stw */, HI(62) | ADDR_MODE2 | 0x0 /* std */),
+/* i n s s b */ HI(38) /* stb */,
+/* i n s s h */ HI(44) /* sth*/,
+/* i n s s i */ HI(36) /* stw */,
+
+/* i n l u w */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x0 /* ld */),
+/* i n l u b */ HI(34) /* lbz */,
+/* i n l u h */ HI(40) /* lhz */,
+/* i n l u i */ HI(32) /* lwz */,
+
+/* i n l s w */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x0 /* ld */),
+/* i n l s b */ HI(34) /* lbz */ /* EXTS_REQ */,
+/* i n l s h */ HI(42) /* lha */,
+/* i n l s i */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x2 /* lwa */),
+
+/* Write-back. */
+
+/* i w s u w */ ARCH_DEPEND(HI(37) /* stwu */, HI(62) | ADDR_MODE2 | 0x1 /* stdu */),
+/* i w s u b */ HI(39) /* stbu */,
+/* i w s u h */ HI(45) /* sthu */,
+/* i w s u i */ HI(37) /* stwu */,
+
+/* i w s s w */ ARCH_DEPEND(HI(37) /* stwu */, HI(62) | ADDR_MODE2 | 0x1 /* stdu */),
+/* i w s s b */ HI(39) /* stbu */,
+/* i w s s h */ HI(45) /* sthu */,
+/* i w s s i */ HI(37) /* stwu */,
+
+/* i w l u w */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | 0x1 /* ldu */),
+/* i w l u b */ HI(35) /* lbzu */,
+/* i w l u h */ HI(41) /* lhzu */,
+/* i w l u i */ HI(33) /* lwzu */,
+
+/* i w l s w */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | 0x1 /* ldu */),
+/* i w l s b */ HI(35) /* lbzu */ /* EXTS_REQ */,
+/* i w l s h */ HI(43) /* lhau */,
+/* i w l s i */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | UPDATE_REQ | 0x2 /* lwa */),
+
+/* ---------- */
+/*  Indexed   */
+/* ---------- */
+
+/* No write-back. */
+
+/* x n s u w */ ARCH_DEPEND(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */),
+/* x n s u b */ HI(31) | LO(215) /* stbx */,
+/* x n s u h */ HI(31) | LO(407) /* sthx */,
+/* x n s u i */ HI(31) | LO(151) /* stwx */,
+
+/* x n s s w */ ARCH_DEPEND(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */),
+/* x n s s b */ HI(31) | LO(215) /* stbx */,
+/* x n s s h */ HI(31) | LO(407) /* sthx */,
+/* x n s s i */ HI(31) | LO(151) /* stwx */,
+
+/* x n l u w */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */),
+/* x n l u b */ HI(31) | LO(87) /* lbzx */,
+/* x n l u h */ HI(31) | LO(279) /* lhzx */,
+/* x n l u i */ HI(31) | LO(23) /* lwzx */,
+
+/* x n l s w */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */),
+/* x n l s b */ HI(31) | LO(87) /* lbzx */ /* EXTS_REQ */,
+/* x n l s h */ HI(31) | LO(343) /* lhax */,
+/* x n l s i */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(341) /* lwax */),
+
+/* Write-back. */
+
+/* x w s u w */ ARCH_DEPEND(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */),
+/* x w s u b */ HI(31) | LO(247) /* stbux */,
+/* x w s u h */ HI(31) | LO(439) /* sthux */,
+/* x w s u i */ HI(31) | LO(183) /* stwux */,
+
+/* x w s s w */ ARCH_DEPEND(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */),
+/* x w s s b */ HI(31) | LO(247) /* stbux */,
+/* x w s s h */ HI(31) | LO(439) /* sthux */,
+/* x w s s i */ HI(31) | LO(183) /* stwux */,
+
+/* x w l u w */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */),
+/* x w l u b */ HI(31) | LO(119) /* lbzux */,
+/* x w l u h */ HI(31) | LO(311) /* lhzux */,
+/* x w l u i */ HI(31) | LO(55) /* lwzux */,
+
+/* x w l s w */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */),
+/* x w l s b */ HI(31) | LO(119) /* lbzux */ /* EXTS_REQ */,
+/* x w l s h */ HI(31) | LO(375) /* lhaux */,
+/* x w l s i */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(373) /* lwaux */)
+
+};
+
+#undef ARCH_DEPEND
+
+/* Simple cases, (no caching is required). */
+static int getput_arg_fast(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw)
+{
+	sljit_ins inst;
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	int tmp_reg;
+#endif
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+	if (!(arg & 0xf)) {
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+		if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
+			if (inp_flags & ARG_TEST)
+				return 1;
+
+			inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
+			SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
+			push_inst(compiler, GET_INST_CODE(inst) | D(reg) | IMM(argw));
+			return -1;
+		}
+#else
+		inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
+		if (argw <= SIMM_MAX && argw >= SIMM_MIN &&
+				(!(inst & ADDR_MODE2) || (argw & 0x3) == 0)) {
+			if (inp_flags & ARG_TEST)
+				return 1;
+
+			push_inst(compiler, GET_INST_CODE(inst) | D(reg) | IMM(argw));
+			return -1;
+		}
+#endif
+		return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
+	}
+
+	if (!(arg & 0xf0)) {
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+		if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
+			if (inp_flags & ARG_TEST)
+				return 1;
+
+			inst = data_transfer_insts[inp_flags & MEM_MASK];
+			SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
+			push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | IMM(argw));
+			return -1;
+		}
+#else
+		inst = data_transfer_insts[inp_flags & MEM_MASK];
+		if (argw <= SIMM_MAX && argw >= SIMM_MIN && (!(inst & ADDR_MODE2) || (argw & 0x3) == 0)) {
+			if (inp_flags & ARG_TEST)
+				return 1;
+
+			if ((inp_flags & WRITE_BACK) && (inst & UPDATE_REQ)) {
+				tmp_reg = (inp_flags & LOAD_DATA) ? (arg & 0xf) : TMP_REG3;
+				if (push_inst(compiler, ADDI | D(tmp_reg) | A(arg & 0xf) | IMM(argw)))
+					return -1;
+				arg = tmp_reg | SLJIT_MEM;
+				argw = 0;
+			}
+			push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | IMM(argw));
+			return -1;
+		}
+#endif
+	}
+	else if (!(argw & 0x3)) {
+		if (inp_flags & ARG_TEST)
+			return 1;
+		inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
+		SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
+		push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B((arg >> 4) & 0xf));
+		return -1;
+	}
+	return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
+}
+
+/* See getput_arg below.
+   Note: can_cache is called only for binary operators. Those operator always
+   uses word arguments without write back. */
+static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
+{
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+	SLJIT_ASSERT(next_arg & SLJIT_MEM);
+
+	if (!(arg & 0xf)) {
+		if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX))
+			return 1;
+		return 0;
+	}
+
+	if (arg & 0xf0)
+		return 0;
+
+	if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
+		if (arg == next_arg && (next_argw >= SIMM_MAX && next_argw <= SIMM_MIN))
+			return 1;
+	}
+
+	if (arg == next_arg && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX))
+		return 1;
+
+	return 0;
+}
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#define ADJUST_CACHED_IMM(imm) \
+	if ((inst & ADDR_MODE2) && (imm & 0x3)) { \
+		/* Adjust cached value. Fortunately this is really a rare case */ \
+		compiler->cache_argw += imm & 0x3; \
+		FAIL_IF(push_inst(compiler, ADDI | D(TMP_REG3) | A(TMP_REG3) | (imm & 0x3))); \
+		imm &= ~0x3; \
+	}
+#else
+#define ADJUST_CACHED_IMM(imm)
+#endif
+
+/* Emit the necessary instructions. See can_cache above. */
+static int getput_arg(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
+{
+	int tmp_r;
+	sljit_ins inst;
+
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	tmp_r = (inp_flags & LOAD_DATA) ? reg : TMP_REG3;
+	if ((arg & 0xf) == tmp_r) {
+		/* Special case for "mov reg, [reg, ... ]".
+		   Caching would not happen anyway. */
+		tmp_r = TMP_REG3;
+		compiler->cache_arg = 0;
+		compiler->cache_argw = 0;
+	}
+
+	if (!(arg & 0xf)) {
+		inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
+		if ((compiler->cache_arg & SLJIT_IMM) && (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= SIMM_MAX || ((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= SIMM_MAX)) {
+			argw = argw - compiler->cache_argw;
+			ADJUST_CACHED_IMM(argw);
+			SLJIT_ASSERT(!(inst & UPDATE_REQ));
+			return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3) | IMM(argw));
+		}
+
+		if ((next_arg & SLJIT_MEM) && (argw - next_argw <= SIMM_MAX || next_argw - argw <= SIMM_MAX)) {
+			SLJIT_ASSERT(inp_flags & LOAD_DATA);
+
+			compiler->cache_arg = SLJIT_IMM;
+			compiler->cache_argw = argw;
+			tmp_r = TMP_REG3;
+		}
+
+		FAIL_IF(load_immediate(compiler, tmp_r, argw));
+		return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(tmp_r));
+	}
+
+	if (SLJIT_UNLIKELY(arg & 0xf0)) {
+		argw &= 0x3;
+		/* Otherwise getput_arg_fast would capture it. */
+		SLJIT_ASSERT(argw);
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+		FAIL_IF(push_inst(compiler, RLWINM | S((arg >> 4) & 0xf) | A(tmp_r) | (argw << 11) | ((31 - argw) << 1)));
+#else
+		FAIL_IF(push_inst(compiler, RLDI(tmp_r, (arg >> 4) & 0xf, argw, 63 - argw, 1)));
+#endif
+		inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
+		SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
+		return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(tmp_r));
+	}
+
+	inst = data_transfer_insts[inp_flags & MEM_MASK];
+
+	if (compiler->cache_arg == arg && ((sljit_uw)argw - (sljit_uw)compiler->cache_argw <= SIMM_MAX || (sljit_uw)compiler->cache_argw - (sljit_uw)argw <= SIMM_MAX)) {
+		SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
+		argw = argw - compiler->cache_argw;
+		ADJUST_CACHED_IMM(argw);
+		return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3) | IMM(argw));
+	}
+
+	if ((compiler->cache_arg & SLJIT_IMM) && compiler->cache_argw == argw) {
+		inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
+		SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
+		return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(TMP_REG3));
+	}
+
+	if (argw == next_argw && (next_arg & SLJIT_MEM)) {
+		SLJIT_ASSERT(inp_flags & LOAD_DATA);
+		FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+
+		compiler->cache_arg = SLJIT_IMM;
+		compiler->cache_argw = argw;
+
+		inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
+		SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
+		return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(TMP_REG3));
+	}
+
+	if (arg == next_arg && !(inp_flags & WRITE_BACK) && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX)) {
+		SLJIT_ASSERT(inp_flags & LOAD_DATA);
+		FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+		FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | A(TMP_REG3) | B(arg & 0xf)));
+
+		compiler->cache_arg = arg;
+		compiler->cache_argw = argw;
+
+		return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3));
+	}
+
+	/* Get the indexed version instead of the normal one. */
+	inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
+	SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
+	FAIL_IF(load_immediate(compiler, tmp_r, argw));
+	return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(tmp_r));
+}
+
+static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	/* arg1 goes to TMP_REG1 or src reg
+	   arg2 goes to TMP_REG2, imm or src reg
+	   TMP_REG3 can be used for caching
+	   result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
+	int dst_r;
+	int src1_r;
+	int src2_r;
+	int sugg_src2_r = TMP_REG2;
+	int flags = inp_flags & (ALT_FORM1 | ALT_FORM2 | ALT_FORM3 | ALT_FORM4 | ALT_FORM5 | ALT_FORM6 | ALT_SIGN_EXT | ALT_SET_FLAGS);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	/* Destination check. */
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= ZERO_REG) {
+		dst_r = dst;
+		flags |= REG_DEST;
+		if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
+			sugg_src2_r = dst_r;
+	}
+	else if (dst == SLJIT_UNUSED) {
+		if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
+			return SLJIT_SUCCESS;
+		dst_r = TMP_REG2;
+	}
+	else {
+		SLJIT_ASSERT(dst & SLJIT_MEM);
+		if (getput_arg_fast(compiler, inp_flags | ARG_TEST, TMP_REG2, dst, dstw)) {
+			flags |= FAST_DEST;
+			dst_r = TMP_REG2;
+		}
+		else {
+			flags |= SLOW_DEST;
+			dst_r = 0;
+		}
+	}
+
+	/* Source 1. */
+	if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= ZERO_REG) {
+		src1_r = src1;
+		flags |= REG1_SOURCE;
+	}
+	else if (src1 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+		if ((inp_flags & 0x3) == INT_DATA) {
+			if (inp_flags & SIGNED_DATA)
+				src1w = (signed int)src1w;
+			else
+				src1w = (unsigned int)src1w;
+		}
+#endif
+		FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
+		src1_r = TMP_REG1;
+	}
+	else if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w)) {
+		FAIL_IF(compiler->error);
+		src1_r = TMP_REG1;
+	}
+	else
+		src1_r = 0;
+
+	/* Source 2. */
+	if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= ZERO_REG) {
+		src2_r = src2;
+		flags |= REG2_SOURCE;
+		if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
+			dst_r = src2_r;
+	}
+	else if (src2 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+		if ((inp_flags & 0x3) == INT_DATA) {
+			if (inp_flags & SIGNED_DATA)
+				src2w = (signed int)src2w;
+			else
+				src2w = (unsigned int)src2w;
+		}
+#endif
+		FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
+		src2_r = sugg_src2_r;
+	}
+	else if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w)) {
+		FAIL_IF(compiler->error);
+		src2_r = sugg_src2_r;
+	}
+	else
+		src2_r = 0;
+
+	/* src1_r, src2_r and dst_r can be zero (=unprocessed).
+	   All arguments are complex addressing modes, and it is a binary operator. */
+	if (src1_r == 0 && src2_r == 0 && dst_r == 0) {
+		if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
+			FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
+			FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
+		}
+		else {
+			FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
+			FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
+		}
+		src1_r = TMP_REG1;
+		src2_r = TMP_REG2;
+	}
+	else if (src1_r == 0 && src2_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
+		src1_r = TMP_REG1;
+	}
+	else if (src1_r == 0 && dst_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
+		src1_r = TMP_REG1;
+	}
+	else if (src2_r == 0 && dst_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
+		src2_r = sugg_src2_r;
+	}
+
+	if (dst_r == 0)
+		dst_r = TMP_REG2;
+
+	if (src1_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, 0, 0));
+		src1_r = TMP_REG1;
+	}
+
+	if (src2_r == 0) {
+		FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, 0, 0));
+		src2_r = sugg_src2_r;
+	}
+
+	FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
+
+	if (flags & (FAST_DEST | SLOW_DEST)) {
+		if (flags & FAST_DEST)
+			FAIL_IF(getput_arg_fast(compiler, inp_flags, dst_r, dst, dstw));
+		else
+			FAIL_IF(getput_arg(compiler, inp_flags, dst_r, dst, dstw, 0, 0));
+	}
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op0(compiler, op);
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_BREAKPOINT:
+	case SLJIT_NOP:
+		return push_inst(compiler, NOP);
+		break;
+	case SLJIT_UMUL:
+	case SLJIT_SMUL:
+		FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG1)));
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+		FAIL_IF(push_inst(compiler, MULLD | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
+		return push_inst(compiler, (GET_OPCODE(op) == SLJIT_UMUL ? MULHDU : MULHD) | D(SLJIT_TEMPORARY_REG2) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2));
+#else
+		FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
+		return push_inst(compiler, (GET_OPCODE(op) == SLJIT_UMUL ? MULHWU : MULHW) | D(SLJIT_TEMPORARY_REG2) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2));
+#endif
+	case SLJIT_UDIV:
+	case SLJIT_SDIV:
+		FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG1)));
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+		if (op & SLJIT_INT_OP) {
+			FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVWU : DIVW) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
+			FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
+			return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
+		}
+		FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVDU : DIVD) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
+		FAIL_IF(push_inst(compiler, MULLD | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
+		return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
+#else
+		FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVWU : DIVW) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
+		FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
+		return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
+#endif
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	int inp_flags = GET_FLAGS(op) ? ALT_SET_FLAGS : 0;
+
+	CHECK_ERROR();
+	check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	if ((src & SLJIT_IMM) && srcw == 0)
+		src = ZERO_REG;
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	if (op & SLJIT_INT_OP) {
+		inp_flags |= INT_DATA | SIGNED_DATA;
+		if (src & SLJIT_IMM)
+			srcw = (int)srcw;
+	}
+#endif
+	if (op & SLJIT_SET_O)
+		FAIL_IF(push_inst(compiler, MTXER | S(ZERO_REG)));
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_MOV:
+		return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOV_UI:
+		return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOV_SI:
+		return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOV_UB:
+		return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
+
+	case SLJIT_MOV_SB:
+		return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
+
+	case SLJIT_MOV_UH:
+		return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
+
+	case SLJIT_MOV_SH:
+		return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
+
+	case SLJIT_MOVU:
+		return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOVU_UI:
+		return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOVU_SI:
+		return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_MOVU_UB:
+		return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
+
+	case SLJIT_MOVU_SB:
+		return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
+
+	case SLJIT_MOVU_UH:
+		return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
+
+	case SLJIT_MOVU_SH:
+		return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
+
+	case SLJIT_NOT:
+		return emit_op(compiler, SLJIT_NOT, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_NEG:
+		return emit_op(compiler, SLJIT_NEG, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
+
+	case SLJIT_CLZ:
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+		return emit_op(compiler, SLJIT_CLZ, inp_flags | (!(op & SLJIT_INT_OP) ? 0 : ALT_FORM1), dst, dstw, TMP_REG1, 0, src, srcw);
+#else
+		return emit_op(compiler, SLJIT_CLZ, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
+#endif
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+#define TEST_SL_IMM(src, srcw) \
+	(((src) & SLJIT_IMM) && (srcw) <= SIMM_MAX && (srcw) >= SIMM_MIN)
+
+#define TEST_UL_IMM(src, srcw) \
+	(((src) & SLJIT_IMM) && !((srcw) & ~0xffff))
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#define TEST_SH_IMM(src, srcw) \
+	(((src) & SLJIT_IMM) && !((srcw) & 0xffff) && (srcw) <= SLJIT_W(0x7fffffff) && (srcw) >= SLJIT_W(-0x80000000))
+#else
+#define TEST_SH_IMM(src, srcw) \
+	(((src) & SLJIT_IMM) && !((srcw) & 0xffff))
+#endif
+
+#define TEST_UH_IMM(src, srcw) \
+	(((src) & SLJIT_IMM) && !((srcw) & ~0xffff0000))
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#define TEST_ADD_IMM(src, srcw) \
+	(((src) & SLJIT_IMM) && (srcw) <= SLJIT_W(0x7fff7fff) && (srcw) >= SLJIT_W(-0x80000000))
+#else
+#define TEST_ADD_IMM(src, srcw) \
+	((src) & SLJIT_IMM)
+#endif
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+#define TEST_UI_IMM(src, srcw) \
+	(((src) & SLJIT_IMM) && !((srcw) & ~0xffffffff))
+#else
+#define TEST_UI_IMM(src, srcw) \
+	((src) & SLJIT_IMM)
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	int inp_flags = GET_FLAGS(op) ? ALT_SET_FLAGS : 0;
+
+	CHECK_ERROR();
+	check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src1, src1w);
+	ADJUST_LOCAL_OFFSET(src2, src2w);
+
+	if ((src1 & SLJIT_IMM) && src1w == 0)
+		src1 = ZERO_REG;
+	if ((src2 & SLJIT_IMM) && src2w == 0)
+		src2 = ZERO_REG;
+
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+	if (op & SLJIT_INT_OP) {
+		inp_flags |= INT_DATA | SIGNED_DATA;
+		if (src1 & SLJIT_IMM)
+			src1w = (src1w << 32) >> 32;
+		if (src2 & SLJIT_IMM)
+			src2w = (src2w << 32) >> 32;
+		if (GET_FLAGS(op))
+			inp_flags |= ALT_SIGN_EXT;
+	}
+#endif
+	if (op & SLJIT_SET_O)
+		FAIL_IF(push_inst(compiler, MTXER | S(ZERO_REG)));
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_ADD:
+		if (!GET_FLAGS(op) && ((src1 | src2) & SLJIT_IMM)) {
+			if (TEST_SL_IMM(src2, src2w)) {
+				compiler->imm = src2w & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_SL_IMM(src1, src1w)) {
+				compiler->imm = src1w & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+			if (TEST_SH_IMM(src2, src2w)) {
+				compiler->imm = (src2w >> 16) & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_SH_IMM(src1, src1w)) {
+				compiler->imm = (src1w >> 16) & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+			/* Range between -1 and -32768 is covered above. */
+			if (TEST_ADD_IMM(src2, src2w)) {
+				compiler->imm = src2w & 0xffffffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_ADD_IMM(src1, src1w)) {
+				compiler->imm = src1w & 0xffffffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+		}
+		if (!(GET_FLAGS(op) & (SLJIT_SET_E | SLJIT_SET_O))) {
+			if (TEST_SL_IMM(src2, src2w)) {
+				compiler->imm = src2w & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_SL_IMM(src1, src1w)) {
+				compiler->imm = src1w & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+		}
+		return emit_op(compiler, SLJIT_ADD, inp_flags, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_ADDC:
+		return emit_op(compiler, SLJIT_ADDC, inp_flags | (!(op & SLJIT_KEEP_FLAGS) ? 0 : ALT_FORM1), dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_SUB:
+		if (!GET_FLAGS(op) && ((src1 | src2) & SLJIT_IMM)) {
+			if (TEST_SL_IMM(src2, -src2w)) {
+				compiler->imm = (-src2w) & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_SL_IMM(src1, src1w)) {
+				compiler->imm = src1w & 0xffff;
+				return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+			if (TEST_SH_IMM(src2, -src2w)) {
+				compiler->imm = ((-src2w) >> 16) & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			/* Range between -1 and -32768 is covered above. */
+			if (TEST_ADD_IMM(src2, -src2w)) {
+				compiler->imm = -src2w & 0xffffffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+		}
+		if (dst == SLJIT_UNUSED && (op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U)) && !(op & (SLJIT_SET_O | SLJIT_SET_C))) {
+			if (!(op & SLJIT_SET_U)) {
+				/* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
+				if (TEST_SL_IMM(src2, src2w)) {
+					compiler->imm = src2w & 0xffff;
+					return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
+				}
+				if (GET_FLAGS(op) == SLJIT_SET_E && TEST_SL_IMM(src1, src1w)) {
+					compiler->imm = src1w & 0xffff;
+					return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
+				}
+			}
+			if (!(op & (SLJIT_SET_E | SLJIT_SET_S))) {
+				/* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
+				if (TEST_UL_IMM(src2, src2w)) {
+					compiler->imm = src2w & 0xffff;
+					return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
+				}
+				return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, src2, src2w);
+			}
+			if ((src2 & SLJIT_IMM) && src2w >= 0 && src2w <= 0x7fff) {
+				compiler->imm = src2w;
+				return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2 | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			return emit_op(compiler, SLJIT_SUB, inp_flags | ((op & SLJIT_SET_U) ? ALT_FORM4 : 0) | ((op & (SLJIT_SET_E | SLJIT_SET_S)) ? ALT_FORM5 : 0), dst, dstw, src1, src1w, src2, src2w);
+		}
+		if (!(op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O))) {
+			if (TEST_SL_IMM(src2, -src2w)) {
+				compiler->imm = (-src2w) & 0xffff;
+				return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+		}
+		/* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
+		return emit_op(compiler, SLJIT_SUB, inp_flags | (!(op & SLJIT_SET_U) ? 0 : ALT_FORM6), dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_SUBC:
+		return emit_op(compiler, SLJIT_SUBC, inp_flags | (!(op & SLJIT_KEEP_FLAGS) ? 0 : ALT_FORM1), dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_MUL:
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+		if (op & SLJIT_INT_OP)
+			inp_flags |= ALT_FORM2;
+#endif
+		if (!GET_FLAGS(op)) {
+			if (TEST_SL_IMM(src2, src2w)) {
+				compiler->imm = src2w & 0xffff;
+				return emit_op(compiler, SLJIT_MUL, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_SL_IMM(src1, src1w)) {
+				compiler->imm = src1w & 0xffff;
+				return emit_op(compiler, SLJIT_MUL, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+		}
+		return emit_op(compiler, SLJIT_MUL, inp_flags, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_AND:
+	case SLJIT_OR:
+	case SLJIT_XOR:
+		/* Commutative unsigned operations. */
+		if (!GET_FLAGS(op) || GET_OPCODE(op) == SLJIT_AND) {
+			if (TEST_UL_IMM(src2, src2w)) {
+				compiler->imm = src2w;
+				return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_UL_IMM(src1, src1w)) {
+				compiler->imm = src1w;
+				return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+			if (TEST_UH_IMM(src2, src2w)) {
+				compiler->imm = (src2w >> 16) & 0xffff;
+				return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_UH_IMM(src1, src1w)) {
+				compiler->imm = (src1w >> 16) & 0xffff;
+				return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+		}
+		if (!GET_FLAGS(op) && GET_OPCODE(op) != SLJIT_AND) {
+			if (TEST_UI_IMM(src2, src2w)) {
+				compiler->imm = src2w;
+				return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
+			}
+			if (TEST_UI_IMM(src1, src1w)) {
+				compiler->imm = src1w;
+				return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
+			}
+		}
+		return emit_op(compiler, GET_OPCODE(op), inp_flags, dst, dstw, src1, src1w, src2, src2w);
+
+	case SLJIT_SHL:
+	case SLJIT_LSHR:
+	case SLJIT_ASHR:
+#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
+		if (op & SLJIT_INT_OP)
+			inp_flags |= ALT_FORM2;
+#endif
+		if (src2 & SLJIT_IMM) {
+			compiler->imm = src2w;
+			return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
+		}
+		return emit_op(compiler, GET_OPCODE(op), inp_flags, dst, dstw, src1, src1w, src2, src2w);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
+{
+	check_sljit_get_register_index(reg);
+	return reg_map[reg];
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
+	void *instruction, int size)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op_custom(compiler, instruction, size);
+	SLJIT_ASSERT(size == 4);
+
+	return push_inst(compiler, *(sljit_ins*)instruction);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Floating point operators                                             */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
+{
+	/* Always available. */
+	return 1;
+}
+
+static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw)
+{
+	SLJIT_ASSERT(arg & SLJIT_MEM);
+
+	/* Fast loads and stores. */
+	if (!(arg & 0xf0)) {
+		/* Both for (arg & 0xf) == SLJIT_UNUSED and (arg & 0xf) != SLJIT_UNUSED. */
+		if (argw <= SIMM_MAX && argw >= SIMM_MIN)
+			return push_inst(compiler, (load ? LFD : STFD) | FD(fpu_reg) | A(arg & 0xf) | IMM(argw));
+	}
+
+	if (arg & 0xf0) {
+		argw &= 0x3;
+		if (argw) {
+#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
+			FAIL_IF(push_inst(compiler, RLWINM | S((arg >> 4) & 0xf) | A(TMP_REG2) | (argw << 11) | ((31 - argw) << 1)));
+#else
+			FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, (arg >> 4) & 0xf, argw, 63 - argw, 1)));
+#endif
+			return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(arg & 0xf) | B(TMP_REG2));
+		}
+		return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(arg & 0xf) | B((arg >> 4) & 0xf));
+	}
+
+	/* Use cache. */
+	if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN)
+		return push_inst(compiler, (load ? LFD : STFD) | FD(fpu_reg) | A(TMP_REG3) | IMM(argw - compiler->cache_argw));
+
+	/* Put value to cache. */
+	compiler->cache_arg = arg;
+	compiler->cache_argw = argw;
+
+	FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
+	if (!(arg & 0xf))
+		return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(0) | B(TMP_REG3));
+	return push_inst(compiler, (load ? LFDUX : STFDUX) | FD(fpu_reg) | A(TMP_REG3) | B(arg & 0xf));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	int dst_fr;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	if (GET_OPCODE(op) == SLJIT_FCMP) {
+		if (dst > SLJIT_FLOAT_REG4) {
+			FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw));
+			dst = TMP_FREG1;
+		}
+		if (src > SLJIT_FLOAT_REG4) {
+			FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw));
+			src = TMP_FREG2;
+		}
+		return push_inst(compiler, FCMPU | CRD(4) | FA(dst) | FB(src));
+	}
+
+	dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
+
+	if (src > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, dst_fr, 1, src, srcw));
+		src = dst_fr;
+	}
+
+	switch (op) {
+		case SLJIT_FMOV:
+			if (src != dst_fr && dst_fr != TMP_FREG1)
+				FAIL_IF(push_inst(compiler, FMR | FD(dst_fr) | FB(src)));
+			break;
+		case SLJIT_FNEG:
+			FAIL_IF(push_inst(compiler, FNEG | FD(dst_fr) | FB(src)));
+			break;
+		case SLJIT_FABS:
+			FAIL_IF(push_inst(compiler, FABS | FD(dst_fr) | FB(src)));
+			break;
+	}
+
+	if (dst_fr == TMP_FREG1)
+		FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw));
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	int dst_fr;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+
+	compiler->cache_arg = 0;
+	compiler->cache_argw = 0;
+
+	dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
+
+	if (src2 > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w));
+		src2 = TMP_FREG2;
+	}
+
+	if (src1 > SLJIT_FLOAT_REG4) {
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w));
+		src1 = TMP_FREG1;
+	}
+
+	switch (op) {
+	case SLJIT_FADD:
+		FAIL_IF(push_inst(compiler, FADD | FD(dst_fr) | FA(src1) | FB(src2)));
+		break;
+
+	case SLJIT_FSUB:
+		FAIL_IF(push_inst(compiler, FSUB | FD(dst_fr) | FA(src1) | FB(src2)));
+		break;
+
+	case SLJIT_FMUL:
+		FAIL_IF(push_inst(compiler, FMUL | FD(dst_fr) | FA(src1) | FC(src2) /* FMUL use FC as src2 */));
+		break;
+
+	case SLJIT_FDIV:
+		FAIL_IF(push_inst(compiler, FDIV | FD(dst_fr) | FA(src1) | FB(src2)));
+		break;
+	}
+
+	if (dst_fr == TMP_FREG1)
+		FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw));
+
+	return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Other instructions                                                   */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_fast_enter(compiler, dst, dstw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
+		return push_inst(compiler, MFLR | D(dst));
+	else if (dst & SLJIT_MEM) {
+		FAIL_IF(push_inst(compiler, MFLR | D(TMP_REG2)));
+		return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+	CHECK_ERROR();
+	check_sljit_emit_fast_return(compiler, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
+		FAIL_IF(push_inst(compiler, MTLR | S(src)));
+	else {
+		if (src & SLJIT_MEM)
+			FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
+		else if (src & SLJIT_IMM)
+			FAIL_IF(load_immediate(compiler, TMP_REG2, srcw));
+		FAIL_IF(push_inst(compiler, MTLR | S(TMP_REG2)));
+	}
+	return push_inst(compiler, BLR);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Conditional instructions                                             */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
+{
+	struct sljit_label *label;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_label(compiler);
+
+	if (compiler->last_label && compiler->last_label->size == compiler->size)
+		return compiler->last_label;
+
+	label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
+	PTR_FAIL_IF(!label);
+	set_label(label, compiler);
+	return label;
+}
+
+static sljit_ins get_bo_bi_flags(struct sljit_compiler *compiler, int type)
+{
+	switch (type) {
+	case SLJIT_C_EQUAL:
+		return (12 << 21) | (2 << 16);
+
+	case SLJIT_C_NOT_EQUAL:
+		return (4 << 21) | (2 << 16);
+
+	case SLJIT_C_LESS:
+	case SLJIT_C_FLOAT_LESS:
+		return (12 << 21) | ((4 + 0) << 16);
+
+	case SLJIT_C_GREATER_EQUAL:
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		return (4 << 21) | ((4 + 0) << 16);
+
+	case SLJIT_C_GREATER:
+	case SLJIT_C_FLOAT_GREATER:
+		return (12 << 21) | ((4 + 1) << 16);
+
+	case SLJIT_C_LESS_EQUAL:
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		return (4 << 21) | ((4 + 1) << 16);
+
+	case SLJIT_C_SIG_LESS:
+		return (12 << 21) | (0 << 16);
+
+	case SLJIT_C_SIG_GREATER_EQUAL:
+		return (4 << 21) | (0 << 16);
+
+	case SLJIT_C_SIG_GREATER:
+		return (12 << 21) | (1 << 16);
+
+	case SLJIT_C_SIG_LESS_EQUAL:
+		return (4 << 21) | (1 << 16);
+
+	case SLJIT_C_OVERFLOW:
+	case SLJIT_C_MUL_OVERFLOW:
+		return (12 << 21) | (3 << 16);
+
+	case SLJIT_C_NOT_OVERFLOW:
+	case SLJIT_C_MUL_NOT_OVERFLOW:
+		return (4 << 21) | (3 << 16);
+
+	case SLJIT_C_FLOAT_EQUAL:
+		return (12 << 21) | ((4 + 2) << 16);
+
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		return (4 << 21) | ((4 + 2) << 16);
+
+	case SLJIT_C_FLOAT_NAN:
+		return (12 << 21) | ((4 + 3) << 16);
+
+	case SLJIT_C_FLOAT_NOT_NAN:
+		return (4 << 21) | ((4 + 3) << 16);
+
+	default:
+		SLJIT_ASSERT(type >= SLJIT_JUMP && type <= SLJIT_CALL3);
+		return (20 << 21);
+	}
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
+{
+	struct sljit_jump *jump;
+	sljit_ins bo_bi_flags;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_jump(compiler, type);
+
+	bo_bi_flags = get_bo_bi_flags(compiler, type & 0xff);
+	if (!bo_bi_flags)
+		return NULL;
+
+	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+	PTR_FAIL_IF(!jump);
+	set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
+	type &= 0xff;
+
+	/* In PPC, we don't need to touch the arguments. */
+	if (type >= SLJIT_JUMP)
+		jump->flags |= UNCOND_B;
+
+	PTR_FAIL_IF(emit_const(compiler, TMP_REG1, 0));
+	PTR_FAIL_IF(push_inst(compiler, MTCTR | S(TMP_REG1)));
+	jump->addr = compiler->size;
+	PTR_FAIL_IF(push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0)));
+	return jump;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
+{
+	sljit_ins bo_bi_flags;
+	struct sljit_jump *jump = NULL;
+	int src_r;
+
+	CHECK_ERROR();
+	check_sljit_emit_ijump(compiler, type, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	bo_bi_flags = get_bo_bi_flags(compiler, type);
+	FAIL_IF(!bo_bi_flags);
+
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
+		src_r = src;
+	else if (src & SLJIT_IMM) {
+		jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+		FAIL_IF(!jump);
+		set_jump(jump, compiler, JUMP_ADDR | UNCOND_B);
+		jump->u.target = srcw;
+
+		FAIL_IF(emit_const(compiler, TMP_REG2, 0));
+		src_r = TMP_REG2;
+	}
+	else {
+		FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
+		src_r = TMP_REG2;
+	}
+
+	FAIL_IF(push_inst(compiler, MTCTR | S(src_r)));
+	if (jump)
+		jump->addr = compiler->size;
+	return push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0));
+}
+
+/* Get a bit from CR, all other bits are zeroed. */
+#define GET_CR_BIT(bit, dst) \
+	FAIL_IF(push_inst(compiler, MFCR | D(dst))); \
+	FAIL_IF(push_inst(compiler, RLWINM | S(dst) | A(dst) | ((1 + (bit)) << 11) | (31 << 6) | (31 << 1)));
+
+#define INVERT_BIT(dst) \
+	FAIL_IF(push_inst(compiler, XORI | S(dst) | A(dst) | 0x1));
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
+{
+	int reg;
+
+	CHECK_ERROR();
+	check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	if (dst == SLJIT_UNUSED)
+		return SLJIT_SUCCESS;
+
+	reg = (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
+
+	switch (type) {
+	case SLJIT_C_EQUAL:
+		GET_CR_BIT(2, reg);
+		break;
+
+	case SLJIT_C_NOT_EQUAL:
+		GET_CR_BIT(2, reg);
+		INVERT_BIT(reg);
+		break;
+
+	case SLJIT_C_LESS:
+	case SLJIT_C_FLOAT_LESS:
+		GET_CR_BIT(4 + 0, reg);
+		break;
+
+	case SLJIT_C_GREATER_EQUAL:
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		GET_CR_BIT(4 + 0, reg);
+		INVERT_BIT(reg);
+		break;
+
+	case SLJIT_C_GREATER:
+	case SLJIT_C_FLOAT_GREATER:
+		GET_CR_BIT(4 + 1, reg);
+		break;
+
+	case SLJIT_C_LESS_EQUAL:
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		GET_CR_BIT(4 + 1, reg);
+		INVERT_BIT(reg);
+		break;
+
+	case SLJIT_C_SIG_LESS:
+		GET_CR_BIT(0, reg);
+		break;
+
+	case SLJIT_C_SIG_GREATER_EQUAL:
+		GET_CR_BIT(0, reg);
+		INVERT_BIT(reg);
+		break;
+
+	case SLJIT_C_SIG_GREATER:
+		GET_CR_BIT(1, reg);
+		break;
+
+	case SLJIT_C_SIG_LESS_EQUAL:
+		GET_CR_BIT(1, reg);
+		INVERT_BIT(reg);
+		break;
+
+	case SLJIT_C_OVERFLOW:
+	case SLJIT_C_MUL_OVERFLOW:
+		GET_CR_BIT(3, reg);
+		break;
+
+	case SLJIT_C_NOT_OVERFLOW:
+	case SLJIT_C_MUL_NOT_OVERFLOW:
+		GET_CR_BIT(3, reg);
+		INVERT_BIT(reg);
+		break;
+
+	case SLJIT_C_FLOAT_EQUAL:
+		GET_CR_BIT(4 + 2, reg);
+		break;
+
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		GET_CR_BIT(4 + 2, reg);
+		INVERT_BIT(reg);
+		break;
+
+	case SLJIT_C_FLOAT_NAN:
+		GET_CR_BIT(4 + 3, reg);
+		break;
+
+	case SLJIT_C_FLOAT_NOT_NAN:
+		GET_CR_BIT(4 + 3, reg);
+		INVERT_BIT(reg);
+		break;
+
+	default:
+		SLJIT_ASSERT_STOP();
+		break;
+	}
+
+	if (GET_OPCODE(op) == SLJIT_OR)
+		return emit_op(compiler, GET_OPCODE(op), GET_FLAGS(op) ? ALT_SET_FLAGS : 0, dst, dstw, dst, dstw, TMP_REG2, 0);
+
+	if (reg == TMP_REG2)
+		return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
+{
+	struct sljit_const *const_;
+	int reg;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_const(compiler, dst, dstw, init_value);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
+	PTR_FAIL_IF(!const_);
+	set_const(const_, compiler);
+
+	reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
+
+	PTR_FAIL_IF(emit_const(compiler, reg, init_value));
+
+	if (dst & SLJIT_MEM)
+		PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
+	return const_;
+}
diff --git a/8.31/sljit/sljitNativeX86_32.c b/8.31/sljit/sljitNativeX86_32.c
new file mode 100644
index 0000000..e955825
--- /dev/null
+++ b/8.31/sljit/sljitNativeX86_32.c
@@ -0,0 +1,523 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* x86 32-bit arch dependent functions. */
+
+static int emit_do_imm(struct sljit_compiler *compiler, sljit_ub opcode, sljit_w imm)
+{
+	sljit_ub *buf;
+
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + 1 + sizeof(sljit_w));
+	FAIL_IF(!buf);
+	INC_SIZE(1 + sizeof(sljit_w));
+	*buf++ = opcode;
+	*(sljit_w*)buf = imm;
+	return SLJIT_SUCCESS;
+}
+
+static sljit_ub* generate_far_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, int type)
+{
+	if (type == SLJIT_JUMP) {
+		*code_ptr++ = 0xe9;
+		jump->addr++;
+	}
+	else if (type >= SLJIT_FAST_CALL) {
+		*code_ptr++ = 0xe8;
+		jump->addr++;
+	}
+	else {
+		*code_ptr++ = 0x0f;
+		*code_ptr++ = get_jump_code(type);
+		jump->addr += 2;
+	}
+
+	if (jump->flags & JUMP_LABEL)
+		jump->flags |= PATCH_MW;
+	else
+		*(sljit_w*)code_ptr = jump->u.target - (jump->addr + 4);
+	code_ptr += 4;
+
+	return code_ptr;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	int size;
+	int locals_offset;
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+	compiler->args = args;
+	compiler->flags_saved = 0;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+	size = 1 + (saveds <= 3 ? saveds : 3) + (args > 0 ? (args * 2) : 0) + (args > 2 ? 2 : 0);
+#else
+	size = 1 + (saveds <= 3 ? saveds : 3) + (args > 0 ? (2 + args * 3) : 0);
+#endif
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
+	FAIL_IF(!buf);
+
+	INC_SIZE(size);
+	PUSH_REG(reg_map[TMP_REGISTER]);
+#if !(defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+	if (args > 0) {
+		*buf++ = 0x8b;
+		*buf++ = 0xc4 | (reg_map[TMP_REGISTER] << 3);
+	}
+#endif
+	if (saveds > 2)
+		PUSH_REG(reg_map[SLJIT_SAVED_REG3]);
+	if (saveds > 1)
+		PUSH_REG(reg_map[SLJIT_SAVED_REG2]);
+	if (saveds > 0)
+		PUSH_REG(reg_map[SLJIT_SAVED_REG1]);
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+	if (args > 0) {
+		*buf++ = 0x8b;
+		*buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG1] << 3) | reg_map[SLJIT_TEMPORARY_REG3];
+	}
+	if (args > 1) {
+		*buf++ = 0x8b;
+		*buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG2] << 3) | reg_map[SLJIT_TEMPORARY_REG2];
+	}
+	if (args > 2) {
+		*buf++ = 0x8b;
+		*buf++ = 0x44 | (reg_map[SLJIT_SAVED_REG3] << 3);
+		*buf++ = 0x24;
+		*buf++ = sizeof(sljit_w) * (3 + 2); /* saveds >= 3 as well. */
+	}
+#else
+	if (args > 0) {
+		*buf++ = 0x8b;
+		*buf++ = 0x40 | (reg_map[SLJIT_SAVED_REG1] << 3) | reg_map[TMP_REGISTER];
+		*buf++ = sizeof(sljit_w) * 2;
+	}
+	if (args > 1) {
+		*buf++ = 0x8b;
+		*buf++ = 0x40 | (reg_map[SLJIT_SAVED_REG2] << 3) | reg_map[TMP_REGISTER];
+		*buf++ = sizeof(sljit_w) * 3;
+	}
+	if (args > 2) {
+		*buf++ = 0x8b;
+		*buf++ = 0x40 | (reg_map[SLJIT_SAVED_REG3] << 3) | reg_map[TMP_REGISTER];
+		*buf++ = sizeof(sljit_w) * 4;
+	}
+#endif
+
+	locals_offset = 2 * sizeof(sljit_uw);
+	compiler->temporaries_start = locals_offset;
+	if (temporaries > 3)
+		locals_offset += (temporaries - 3) * sizeof(sljit_uw);
+	compiler->saveds_start = locals_offset;
+	if (saveds > 3)
+		locals_offset += (saveds - 3) * sizeof(sljit_uw);
+	compiler->locals_offset = locals_offset;
+	local_size = locals_offset + ((local_size + sizeof(sljit_uw) - 1) & ~(sizeof(sljit_uw) - 1));
+
+#ifdef _WIN32
+	if (local_size > 1024) {
+		FAIL_IF(emit_do_imm(compiler, 0xb8 + reg_map[SLJIT_TEMPORARY_REG1], local_size));
+		FAIL_IF(sljit_emit_ijump(compiler, SLJIT_CALL1, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_grow_stack)));
+	}
+#endif
+
+	compiler->local_size = local_size;
+	SLJIT_ASSERT(local_size > 0);
+	return emit_non_cum_binary(compiler, 0x2b, 0x29, 0x5 << 3, 0x2d,
+		SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, local_size);
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	int locals_offset;
+
+	CHECK_ERROR_VOID();
+	check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+	compiler->args = args;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	locals_offset = 2 * sizeof(sljit_uw);
+	compiler->temporaries_start = locals_offset;
+	if (temporaries > 3)
+		locals_offset += (temporaries - 3) * sizeof(sljit_uw);
+	compiler->saveds_start = locals_offset;
+	if (saveds > 3)
+		locals_offset += (saveds - 3) * sizeof(sljit_uw);
+	compiler->locals_offset = locals_offset;
+	compiler->local_size = locals_offset + ((local_size + sizeof(sljit_uw) - 1) & ~(sizeof(sljit_uw) - 1));
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	int size;
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_return(compiler, op, src, srcw);
+	SLJIT_ASSERT(compiler->args >= 0);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	compiler->flags_saved = 0;
+	FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+	SLJIT_ASSERT(compiler->local_size > 0);
+	FAIL_IF(emit_cum_binary(compiler, 0x03, 0x01, 0x0 << 3, 0x05,
+		SLJIT_LOCALS_REG, 0, SLJIT_LOCALS_REG, 0, SLJIT_IMM, compiler->local_size));
+
+	size = 2 + (compiler->saveds <= 3 ? compiler->saveds : 3);
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+	if (compiler->args > 2)
+		size += 2;
+#else
+	if (compiler->args > 0)
+		size += 2;
+#endif
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
+	FAIL_IF(!buf);
+
+	INC_SIZE(size);
+
+	if (compiler->saveds > 0)
+		POP_REG(reg_map[SLJIT_SAVED_REG1]);
+	if (compiler->saveds > 1)
+		POP_REG(reg_map[SLJIT_SAVED_REG2]);
+	if (compiler->saveds > 2)
+		POP_REG(reg_map[SLJIT_SAVED_REG3]);
+	POP_REG(reg_map[TMP_REGISTER]);
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+	if (compiler->args > 2)
+		RETN(sizeof(sljit_w));
+	else
+		RET();
+#else
+	if (compiler->args > 0)
+		RETN(compiler->args * sizeof(sljit_w));
+	else
+		RET();
+#endif
+
+	return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Operators                                                            */
+/* --------------------------------------------------------------------- */
+
+/* Size contains the flags as well. */
+static sljit_ub* emit_x86_instruction(struct sljit_compiler *compiler, int size,
+	/* The register or immediate operand. */
+	int a, sljit_w imma,
+	/* The general operand (not immediate). */
+	int b, sljit_w immb)
+{
+	sljit_ub *buf;
+	sljit_ub *buf_ptr;
+	int flags = size & ~0xf;
+	int inst_size;
+
+	/* Both cannot be switched on. */
+	SLJIT_ASSERT((flags & (EX86_BIN_INS | EX86_SHIFT_INS)) != (EX86_BIN_INS | EX86_SHIFT_INS));
+	/* Size flags not allowed for typed instructions. */
+	SLJIT_ASSERT(!(flags & (EX86_BIN_INS | EX86_SHIFT_INS)) || (flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) == 0);
+	/* Both size flags cannot be switched on. */
+	SLJIT_ASSERT((flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) != (EX86_BYTE_ARG | EX86_HALF_ARG));
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	/* SSE2 and immediate is not possible. */
+	SLJIT_ASSERT(!(a & SLJIT_IMM) || !(flags & EX86_SSE2));
+#endif
+
+	size &= 0xf;
+	inst_size = size;
+
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	if (flags & EX86_PREF_F2)
+		inst_size++;
+#endif
+	if (flags & EX86_PREF_66)
+		inst_size++;
+
+	/* Calculate size of b. */
+	inst_size += 1; /* mod r/m byte. */
+	if (b & SLJIT_MEM) {
+		if ((b & 0x0f) == SLJIT_UNUSED)
+			inst_size += sizeof(sljit_w);
+		else if (immb != 0 && !(b & 0xf0)) {
+			/* Immediate operand. */
+			if (immb <= 127 && immb >= -128)
+				inst_size += sizeof(sljit_b);
+			else
+				inst_size += sizeof(sljit_w);
+		}
+
+		if ((b & 0xf) == SLJIT_LOCALS_REG && !(b & 0xf0))
+			b |= SLJIT_LOCALS_REG << 4;
+
+		if ((b & 0xf0) != SLJIT_UNUSED)
+			inst_size += 1; /* SIB byte. */
+	}
+
+	/* Calculate size of a. */
+	if (a & SLJIT_IMM) {
+		if (flags & EX86_BIN_INS) {
+			if (imma <= 127 && imma >= -128) {
+				inst_size += 1;
+				flags |= EX86_BYTE_ARG;
+			} else
+				inst_size += 4;
+		}
+		else if (flags & EX86_SHIFT_INS) {
+			imma &= 0x1f;
+			if (imma != 1) {
+				inst_size ++;
+				flags |= EX86_BYTE_ARG;
+			}
+		} else if (flags & EX86_BYTE_ARG)
+			inst_size++;
+		else if (flags & EX86_HALF_ARG)
+			inst_size += sizeof(short);
+		else
+			inst_size += sizeof(sljit_w);
+	}
+	else
+		SLJIT_ASSERT(!(flags & EX86_SHIFT_INS) || a == SLJIT_PREF_SHIFT_REG);
+
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + inst_size);
+	PTR_FAIL_IF(!buf);
+
+	/* Encoding the byte. */
+	INC_SIZE(inst_size);
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	if (flags & EX86_PREF_F2)
+		*buf++ = 0xf2;
+#endif
+	if (flags & EX86_PREF_66)
+		*buf++ = 0x66;
+
+	buf_ptr = buf + size;
+
+	/* Encode mod/rm byte. */
+	if (!(flags & EX86_SHIFT_INS)) {
+		if ((flags & EX86_BIN_INS) && (a & SLJIT_IMM))
+			*buf = (flags & EX86_BYTE_ARG) ? 0x83 : 0x81;
+
+		if ((a & SLJIT_IMM) || (a == 0))
+			*buf_ptr = 0;
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+		else if (!(flags & EX86_SSE2))
+			*buf_ptr = reg_map[a] << 3;
+		else
+			*buf_ptr = a << 3;
+#else
+		else
+			*buf_ptr = reg_map[a] << 3;
+#endif
+	}
+	else {
+		if (a & SLJIT_IMM) {
+			if (imma == 1)
+				*buf = 0xd1;
+			else
+				*buf = 0xc1;
+		} else
+			*buf = 0xd3;
+		*buf_ptr = 0;
+	}
+
+	if (!(b & SLJIT_MEM))
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+		*buf_ptr++ |= 0xc0 + ((!(flags & EX86_SSE2)) ? reg_map[b] : b);
+#else
+		*buf_ptr++ |= 0xc0 + reg_map[b];
+#endif
+	else if ((b & 0x0f) != SLJIT_UNUSED) {
+		if ((b & 0xf0) == SLJIT_UNUSED || (b & 0xf0) == (SLJIT_LOCALS_REG << 4)) {
+			if (immb != 0) {
+				if (immb <= 127 && immb >= -128)
+					*buf_ptr |= 0x40;
+				else
+					*buf_ptr |= 0x80;
+			}
+
+			if ((b & 0xf0) == SLJIT_UNUSED)
+				*buf_ptr++ |= reg_map[b & 0x0f];
+			else {
+				*buf_ptr++ |= 0x04;
+				*buf_ptr++ = reg_map[b & 0x0f] | (reg_map[(b >> 4) & 0x0f] << 3);
+			}
+
+			if (immb != 0) {
+				if (immb <= 127 && immb >= -128)
+					*buf_ptr++ = immb; /* 8 bit displacement. */
+				else {
+					*(sljit_w*)buf_ptr = immb; /* 32 bit displacement. */
+					buf_ptr += sizeof(sljit_w);
+				}
+			}
+		}
+		else {
+			*buf_ptr++ |= 0x04;
+			*buf_ptr++ = reg_map[b & 0x0f] | (reg_map[(b >> 4) & 0x0f] << 3) | (immb << 6);
+		}
+	}
+	else {
+		*buf_ptr++ |= 0x05;
+		*(sljit_w*)buf_ptr = immb; /* 32 bit displacement. */
+		buf_ptr += sizeof(sljit_w);
+	}
+
+	if (a & SLJIT_IMM) {
+		if (flags & EX86_BYTE_ARG)
+			*buf_ptr = imma;
+		else if (flags & EX86_HALF_ARG)
+			*(short*)buf_ptr = imma;
+		else if (!(flags & EX86_SHIFT_INS))
+			*(sljit_w*)buf_ptr = imma;
+	}
+
+	return !(flags & EX86_SHIFT_INS) ? buf : (buf + 1);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Call / return instructions                                           */
+/* --------------------------------------------------------------------- */
+
+static SLJIT_INLINE int call_with_args(struct sljit_compiler *compiler, int type)
+{
+	sljit_ub *buf;
+
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+	buf = (sljit_ub*)ensure_buf(compiler, type >= SLJIT_CALL3 ? 1 + 2 + 1 : 1 + 2);
+	FAIL_IF(!buf);
+	INC_SIZE(type >= SLJIT_CALL3 ? 2 + 1 : 2);
+
+	if (type >= SLJIT_CALL3)
+		PUSH_REG(reg_map[SLJIT_TEMPORARY_REG3]);
+	*buf++ = 0x8b;
+	*buf++ = 0xc0 | (reg_map[SLJIT_TEMPORARY_REG3] << 3) | reg_map[SLJIT_TEMPORARY_REG1];
+#else
+	buf = (sljit_ub*)ensure_buf(compiler, type - SLJIT_CALL0 + 1);
+	FAIL_IF(!buf);
+	INC_SIZE(type - SLJIT_CALL0);
+	if (type >= SLJIT_CALL3)
+		PUSH_REG(reg_map[SLJIT_TEMPORARY_REG3]);
+	if (type >= SLJIT_CALL2)
+		PUSH_REG(reg_map[SLJIT_TEMPORARY_REG2]);
+	PUSH_REG(reg_map[SLJIT_TEMPORARY_REG1]);
+#endif
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw)
+{
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_fast_enter(compiler, dst, dstw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	CHECK_EXTRA_REGS(dst, dstw, (void)0);
+
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+		FAIL_IF(!buf);
+
+		INC_SIZE(1);
+		POP_REG(reg_map[dst]);
+		return SLJIT_SUCCESS;
+	}
+	else if (dst & SLJIT_MEM) {
+		buf = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw);
+		FAIL_IF(!buf);
+		*buf++ = 0x8f;
+		return SLJIT_SUCCESS;
+	}
+
+	/* For UNUSED dst. Uncommon, but possible. */
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+	FAIL_IF(!buf);
+
+	INC_SIZE(1);
+	POP_REG(reg_map[TMP_REGISTER]);
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_fast_return(compiler, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	CHECK_EXTRA_REGS(src, srcw, (void)0);
+
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 1 + 1);
+		FAIL_IF(!buf);
+
+		INC_SIZE(1 + 1);
+		PUSH_REG(reg_map[src]);
+	}
+	else if (src & SLJIT_MEM) {
+		buf = emit_x86_instruction(compiler, 1, 0, 0, src, srcw);
+		FAIL_IF(!buf);
+		*buf++ = 0xff;
+		*buf |= 6 << 3;
+
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+		FAIL_IF(!buf);
+		INC_SIZE(1);
+	}
+	else {
+		/* SLJIT_IMM. */
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 5 + 1);
+		FAIL_IF(!buf);
+
+		INC_SIZE(5 + 1);
+		*buf++ = 0x68;
+		*(sljit_w*)buf = srcw;
+		buf += sizeof(sljit_w);
+	}
+
+	RET();
+	return SLJIT_SUCCESS;
+}
diff --git a/8.31/sljit/sljitNativeX86_64.c b/8.31/sljit/sljitNativeX86_64.c
new file mode 100644
index 0000000..480cebc
--- /dev/null
+++ b/8.31/sljit/sljitNativeX86_64.c
@@ -0,0 +1,790 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* x86 64-bit arch dependent functions. */
+
+static int emit_load_imm64(struct sljit_compiler *compiler, int reg, sljit_w imm)
+{
+	sljit_ub *buf;
+
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + 2 + sizeof(sljit_w));
+	FAIL_IF(!buf);
+	INC_SIZE(2 + sizeof(sljit_w));
+	*buf++ = REX_W | ((reg_map[reg] <= 7) ? 0 : REX_B);
+	*buf++ = 0xb8 + (reg_map[reg] & 0x7);
+	*(sljit_w*)buf = imm;
+	return SLJIT_SUCCESS;
+}
+
+static sljit_ub* generate_far_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, int type)
+{
+	if (type < SLJIT_JUMP) {
+		*code_ptr++ = get_jump_code(type ^ 0x1) - 0x10;
+		*code_ptr++ = 10 + 3;
+	}
+
+	SLJIT_COMPILE_ASSERT(reg_map[TMP_REG3] == 9, tmp3_is_9_first);
+	*code_ptr++ = REX_W | REX_B;
+	*code_ptr++ = 0xb8 + 1;
+	jump->addr = (sljit_uw)code_ptr;
+
+	if (jump->flags & JUMP_LABEL)
+		jump->flags |= PATCH_MD;
+	else
+		*(sljit_w*)code_ptr = jump->u.target;
+
+	code_ptr += sizeof(sljit_w);
+	*code_ptr++ = REX_B;
+	*code_ptr++ = 0xff;
+	*code_ptr++ = (type >= SLJIT_FAST_CALL) ? 0xd1 /* call */ : 0xe1 /* jmp */;
+
+	return code_ptr;
+}
+
+static sljit_ub* generate_fixed_jump(sljit_ub *code_ptr, sljit_w addr, int type)
+{
+	sljit_w delta = addr - ((sljit_w)code_ptr + 1 + sizeof(sljit_hw));
+
+	if (delta <= SLJIT_W(0x7fffffff) && delta >= SLJIT_W(-0x80000000)) {
+		*code_ptr++ = (type == 2) ? 0xe8 /* call */ : 0xe9 /* jmp */;
+		*(sljit_w*)code_ptr = delta;
+	}
+	else {
+		SLJIT_COMPILE_ASSERT(reg_map[TMP_REG3] == 9, tmp3_is_9_second);
+		*code_ptr++ = REX_W | REX_B;
+		*code_ptr++ = 0xb8 + 1;
+		*(sljit_w*)code_ptr = addr;
+		code_ptr += sizeof(sljit_w);
+		*code_ptr++ = REX_B;
+		*code_ptr++ = 0xff;
+		*code_ptr++ = (type == 2) ? 0xd1 /* call */ : 0xe1 /* jmp */;
+	}
+
+	return code_ptr;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	int size, pushed_size;
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+	compiler->flags_saved = 0;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	size = saveds;
+	/* Including the return address saved by the call instruction. */
+	pushed_size = (saveds + 1) * sizeof(sljit_w);
+#ifndef _WIN64
+	if (saveds >= 2)
+		size += saveds - 1;
+#else
+	if (saveds >= 4)
+		size += saveds - 3;
+	if (temporaries >= 5) {
+		size += (5 - 4) * 2;
+		pushed_size += sizeof(sljit_w);
+	}
+#endif
+	size += args * 3;
+	if (size > 0) {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
+		FAIL_IF(!buf);
+
+		INC_SIZE(size);
+		if (saveds >= 5) {
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_EREG2] >= 8, saved_ereg2_is_hireg);
+			*buf++ = REX_B;
+			PUSH_REG(reg_lmap[SLJIT_SAVED_EREG2]);
+		}
+		if (saveds >= 4) {
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_EREG1] >= 8, saved_ereg1_is_hireg);
+			*buf++ = REX_B;
+			PUSH_REG(reg_lmap[SLJIT_SAVED_EREG1]);
+		}
+		if (saveds >= 3) {
+#ifndef _WIN64
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG3] >= 8, saved_reg3_is_hireg);
+			*buf++ = REX_B;
+#else
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG3] < 8, saved_reg3_is_loreg);
+#endif
+			PUSH_REG(reg_lmap[SLJIT_SAVED_REG3]);
+		}
+		if (saveds >= 2) {
+#ifndef _WIN64
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG2] >= 8, saved_reg2_is_hireg);
+			*buf++ = REX_B;
+#else
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG2] < 8, saved_reg2_is_loreg);
+#endif
+			PUSH_REG(reg_lmap[SLJIT_SAVED_REG2]);
+		}
+		if (saveds >= 1) {
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_SAVED_REG1] < 8, saved_reg1_is_loreg);
+			PUSH_REG(reg_lmap[SLJIT_SAVED_REG1]);
+		}
+#ifdef _WIN64
+		if (temporaries >= 5) {
+			SLJIT_COMPILE_ASSERT(reg_map[SLJIT_TEMPORARY_EREG2] >= 8, temporary_ereg2_is_hireg);
+			*buf++ = REX_B;
+			PUSH_REG(reg_lmap[SLJIT_TEMPORARY_EREG2]);
+		}
+#endif
+
+#ifndef _WIN64
+		if (args > 0) {
+			*buf++ = REX_W;
+			*buf++ = 0x8b;
+			*buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG1] << 3) | 0x7;
+		}
+		if (args > 1) {
+			*buf++ = REX_W | REX_R;
+			*buf++ = 0x8b;
+			*buf++ = 0xc0 | (reg_lmap[SLJIT_SAVED_REG2] << 3) | 0x6;
+		}
+		if (args > 2) {
+			*buf++ = REX_W | REX_R;
+			*buf++ = 0x8b;
+			*buf++ = 0xc0 | (reg_lmap[SLJIT_SAVED_REG3] << 3) | 0x2;
+		}
+#else
+		if (args > 0) {
+			*buf++ = REX_W;
+			*buf++ = 0x8b;
+			*buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG1] << 3) | 0x1;
+		}
+		if (args > 1) {
+			*buf++ = REX_W;
+			*buf++ = 0x8b;
+			*buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG2] << 3) | 0x2;
+		}
+		if (args > 2) {
+			*buf++ = REX_W | REX_B;
+			*buf++ = 0x8b;
+			*buf++ = 0xc0 | (reg_map[SLJIT_SAVED_REG3] << 3) | 0x0;
+		}
+#endif
+	}
+
+	local_size = ((local_size + FIXED_LOCALS_OFFSET + pushed_size + 16 - 1) & ~(16 - 1)) - pushed_size;
+	compiler->local_size = local_size;
+#ifdef _WIN64
+	if (local_size > 1024) {
+		/* Allocate stack for the callback, which grows the stack. */
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+		FAIL_IF(!buf);
+		INC_SIZE(4);
+		*buf++ = REX_W;
+		*buf++ = 0x83;
+		*buf++ = 0xc0 | (5 << 3) | 4;
+		/* Pushed size must be divisible by 8. */
+		SLJIT_ASSERT(!(pushed_size & 0x7));
+		if (pushed_size & 0x8) {
+			*buf++ = 5 * sizeof(sljit_w);
+			local_size -= 5 * sizeof(sljit_w);
+		} else {
+			*buf++ = 4 * sizeof(sljit_w);
+			local_size -= 4 * sizeof(sljit_w);
+		}
+		FAIL_IF(emit_load_imm64(compiler, SLJIT_TEMPORARY_REG1, local_size));
+		FAIL_IF(sljit_emit_ijump(compiler, SLJIT_CALL1, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_grow_stack)));
+	}
+#endif
+	SLJIT_ASSERT(local_size > 0);
+	if (local_size <= 127) {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+		FAIL_IF(!buf);
+		INC_SIZE(4);
+		*buf++ = REX_W;
+		*buf++ = 0x83;
+		*buf++ = 0xc0 | (5 << 3) | 4;
+		*buf++ = local_size;
+	}
+	else {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 7);
+		FAIL_IF(!buf);
+		INC_SIZE(7);
+		*buf++ = REX_W;
+		*buf++ = 0x81;
+		*buf++ = 0xc0 | (5 << 3) | 4;
+		*(sljit_hw*)buf = local_size;
+		buf += sizeof(sljit_hw);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
+{
+	int pushed_size;
+
+	CHECK_ERROR_VOID();
+	check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
+
+	compiler->temporaries = temporaries;
+	compiler->saveds = saveds;
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+	compiler->logical_local_size = local_size;
+#endif
+
+	/* Including the return address saved by the call instruction. */
+	pushed_size = (saveds + 1) * sizeof(sljit_w);
+#ifdef _WIN64
+	if (temporaries >= 5)
+		pushed_size += sizeof(sljit_w);
+#endif
+	compiler->local_size = ((local_size + FIXED_LOCALS_OFFSET + pushed_size + 16 - 1) & ~(16 - 1)) - pushed_size;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
+{
+	int size;
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_return(compiler, op, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	compiler->flags_saved = 0;
+	FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
+
+	SLJIT_ASSERT(compiler->local_size > 0);
+	if (compiler->local_size <= 127) {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+		FAIL_IF(!buf);
+		INC_SIZE(4);
+		*buf++ = REX_W;
+		*buf++ = 0x83;
+		*buf++ = 0xc0 | (0 << 3) | 4;
+		*buf = compiler->local_size;
+	}
+	else {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 7);
+		FAIL_IF(!buf);
+		INC_SIZE(7);
+		*buf++ = REX_W;
+		*buf++ = 0x81;
+		*buf++ = 0xc0 | (0 << 3) | 4;
+		*(sljit_hw*)buf = compiler->local_size;
+	}
+
+	size = 1 + compiler->saveds;
+#ifndef _WIN64
+	if (compiler->saveds >= 2)
+		size += compiler->saveds - 1;
+#else
+	if (compiler->saveds >= 4)
+		size += compiler->saveds - 3;
+	if (compiler->temporaries >= 5)
+		size += (5 - 4) * 2;
+#endif
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
+	FAIL_IF(!buf);
+
+	INC_SIZE(size);
+
+#ifdef _WIN64
+	if (compiler->temporaries >= 5) {
+		*buf++ = REX_B;
+		POP_REG(reg_lmap[SLJIT_TEMPORARY_EREG2]);
+	}
+#endif
+	if (compiler->saveds >= 1)
+		POP_REG(reg_map[SLJIT_SAVED_REG1]);
+	if (compiler->saveds >= 2) {
+#ifndef _WIN64
+		*buf++ = REX_B;
+#endif
+		POP_REG(reg_lmap[SLJIT_SAVED_REG2]);
+	}
+	if (compiler->saveds >= 3) {
+#ifndef _WIN64
+		*buf++ = REX_B;
+#endif
+		POP_REG(reg_lmap[SLJIT_SAVED_REG3]);
+	}
+	if (compiler->saveds >= 4) {
+		*buf++ = REX_B;
+		POP_REG(reg_lmap[SLJIT_SAVED_EREG1]);
+	}
+	if (compiler->saveds >= 5) {
+		*buf++ = REX_B;
+		POP_REG(reg_lmap[SLJIT_SAVED_EREG2]);
+	}
+
+	RET();
+	return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Operators                                                            */
+/* --------------------------------------------------------------------- */
+
+static int emit_do_imm32(struct sljit_compiler *compiler, sljit_ub rex, sljit_ub opcode, sljit_w imm)
+{
+	sljit_ub *buf;
+
+	if (rex != 0) {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 2 + sizeof(sljit_hw));
+		FAIL_IF(!buf);
+		INC_SIZE(2 + sizeof(sljit_hw));
+		*buf++ = rex;
+		*buf++ = opcode;
+		*(sljit_hw*)buf = imm;
+	}
+	else {
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 1 + sizeof(sljit_hw));
+		FAIL_IF(!buf);
+		INC_SIZE(1 + sizeof(sljit_hw));
+		*buf++ = opcode;
+		*(sljit_hw*)buf = imm;
+	}
+	return SLJIT_SUCCESS;
+}
+
+static sljit_ub* emit_x86_instruction(struct sljit_compiler *compiler, int size,
+	/* The register or immediate operand. */
+	int a, sljit_w imma,
+	/* The general operand (not immediate). */
+	int b, sljit_w immb)
+{
+	sljit_ub *buf;
+	sljit_ub *buf_ptr;
+	sljit_ub rex = 0;
+	int flags = size & ~0xf;
+	int inst_size;
+
+	/* The immediate operand must be 32 bit. */
+	SLJIT_ASSERT(!(a & SLJIT_IMM) || compiler->mode32 || IS_HALFWORD(imma));
+	/* Both cannot be switched on. */
+	SLJIT_ASSERT((flags & (EX86_BIN_INS | EX86_SHIFT_INS)) != (EX86_BIN_INS | EX86_SHIFT_INS));
+	/* Size flags not allowed for typed instructions. */
+	SLJIT_ASSERT(!(flags & (EX86_BIN_INS | EX86_SHIFT_INS)) || (flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) == 0);
+	/* Both size flags cannot be switched on. */
+	SLJIT_ASSERT((flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) != (EX86_BYTE_ARG | EX86_HALF_ARG));
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	/* SSE2 and immediate is not possible. */
+	SLJIT_ASSERT(!(a & SLJIT_IMM) || !(flags & EX86_SSE2));
+#endif
+
+	size &= 0xf;
+	inst_size = size;
+
+	if ((b & SLJIT_MEM) && !(b & 0xf0) && NOT_HALFWORD(immb)) {
+		if (emit_load_imm64(compiler, TMP_REG3, immb))
+			return NULL;
+		immb = 0;
+		if (b & 0xf)
+			b |= TMP_REG3 << 4;
+		else
+			b |= TMP_REG3;
+	}
+
+	if (!compiler->mode32 && !(flags & EX86_NO_REXW))
+		rex |= REX_W;
+	else if (flags & EX86_REX)
+		rex |= REX;
+
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	if (flags & EX86_PREF_F2)
+		inst_size++;
+#endif
+	if (flags & EX86_PREF_66)
+		inst_size++;
+
+	/* Calculate size of b. */
+	inst_size += 1; /* mod r/m byte. */
+	if (b & SLJIT_MEM) {
+		if ((b & 0x0f) == SLJIT_UNUSED)
+			inst_size += 1 + sizeof(sljit_hw); /* SIB byte required to avoid RIP based addressing. */
+		else {
+			if (reg_map[b & 0x0f] >= 8)
+				rex |= REX_B;
+			if (immb != 0 && !(b & 0xf0)) {
+				/* Immediate operand. */
+				if (immb <= 127 && immb >= -128)
+					inst_size += sizeof(sljit_b);
+				else
+					inst_size += sizeof(sljit_hw);
+			}
+		}
+
+		if ((b & 0xf) == SLJIT_LOCALS_REG && !(b & 0xf0))
+			b |= SLJIT_LOCALS_REG << 4;
+
+		if ((b & 0xf0) != SLJIT_UNUSED) {
+			inst_size += 1; /* SIB byte. */
+			if (reg_map[(b >> 4) & 0x0f] >= 8)
+				rex |= REX_X;
+		}
+	}
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	else if (!(flags & EX86_SSE2) && reg_map[b] >= 8)
+		rex |= REX_B;
+#else
+	else if (reg_map[b] >= 8)
+		rex |= REX_B;
+#endif
+
+	if (a & SLJIT_IMM) {
+		if (flags & EX86_BIN_INS) {
+			if (imma <= 127 && imma >= -128) {
+				inst_size += 1;
+				flags |= EX86_BYTE_ARG;
+			} else
+				inst_size += 4;
+		}
+		else if (flags & EX86_SHIFT_INS) {
+			imma &= compiler->mode32 ? 0x1f : 0x3f;
+			if (imma != 1) {
+				inst_size ++;
+				flags |= EX86_BYTE_ARG;
+			}
+		} else if (flags & EX86_BYTE_ARG)
+			inst_size++;
+		else if (flags & EX86_HALF_ARG)
+			inst_size += sizeof(short);
+		else
+			inst_size += sizeof(sljit_hw);
+	}
+	else {
+		SLJIT_ASSERT(!(flags & EX86_SHIFT_INS) || a == SLJIT_PREF_SHIFT_REG);
+		/* reg_map[SLJIT_PREF_SHIFT_REG] is less than 8. */
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+		if (!(flags & EX86_SSE2) && reg_map[a] >= 8)
+			rex |= REX_R;
+#else
+		if (reg_map[a] >= 8)
+			rex |= REX_R;
+#endif
+	}
+
+	if (rex)
+		inst_size++;
+
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + inst_size);
+	PTR_FAIL_IF(!buf);
+
+	/* Encoding the byte. */
+	INC_SIZE(inst_size);
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+	if (flags & EX86_PREF_F2)
+		*buf++ = 0xf2;
+#endif
+	if (flags & EX86_PREF_66)
+		*buf++ = 0x66;
+	if (rex)
+		*buf++ = rex;
+	buf_ptr = buf + size;
+
+	/* Encode mod/rm byte. */
+	if (!(flags & EX86_SHIFT_INS)) {
+		if ((flags & EX86_BIN_INS) && (a & SLJIT_IMM))
+			*buf = (flags & EX86_BYTE_ARG) ? 0x83 : 0x81;
+
+		if ((a & SLJIT_IMM) || (a == 0))
+			*buf_ptr = 0;
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+		else if (!(flags & EX86_SSE2))
+			*buf_ptr = reg_lmap[a] << 3;
+		else
+			*buf_ptr = a << 3;
+#else
+		else
+			*buf_ptr = reg_lmap[a] << 3;
+#endif
+	}
+	else {
+		if (a & SLJIT_IMM) {
+			if (imma == 1)
+				*buf = 0xd1;
+			else
+				*buf = 0xc1;
+		} else
+			*buf = 0xd3;
+		*buf_ptr = 0;
+	}
+
+	if (!(b & SLJIT_MEM))
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+		*buf_ptr++ |= 0xc0 + ((!(flags & EX86_SSE2)) ? reg_lmap[b] : b);
+#else
+		*buf_ptr++ |= 0xc0 + reg_lmap[b];
+#endif
+	else if ((b & 0x0f) != SLJIT_UNUSED) {
+		if ((b & 0xf0) == SLJIT_UNUSED || (b & 0xf0) == (SLJIT_LOCALS_REG << 4)) {
+			if (immb != 0) {
+				if (immb <= 127 && immb >= -128)
+					*buf_ptr |= 0x40;
+				else
+					*buf_ptr |= 0x80;
+			}
+
+			if ((b & 0xf0) == SLJIT_UNUSED)
+				*buf_ptr++ |= reg_lmap[b & 0x0f];
+			else {
+				*buf_ptr++ |= 0x04;
+				*buf_ptr++ = reg_lmap[b & 0x0f] | (reg_lmap[(b >> 4) & 0x0f] << 3);
+			}
+
+			if (immb != 0) {
+				if (immb <= 127 && immb >= -128)
+					*buf_ptr++ = immb; /* 8 bit displacement. */
+				else {
+					*(sljit_hw*)buf_ptr = immb; /* 32 bit displacement. */
+					buf_ptr += sizeof(sljit_hw);
+				}
+			}
+		}
+		else {
+			*buf_ptr++ |= 0x04;
+			*buf_ptr++ = reg_lmap[b & 0x0f] | (reg_lmap[(b >> 4) & 0x0f] << 3) | (immb << 6);
+		}
+	}
+	else {
+		*buf_ptr++ |= 0x04;
+		*buf_ptr++ = 0x25;
+		*(sljit_hw*)buf_ptr = immb; /* 32 bit displacement. */
+		buf_ptr += sizeof(sljit_hw);
+	}
+
+	if (a & SLJIT_IMM) {
+		if (flags & EX86_BYTE_ARG)
+			*buf_ptr = imma;
+		else if (flags & EX86_HALF_ARG)
+			*(short*)buf_ptr = imma;
+		else if (!(flags & EX86_SHIFT_INS))
+			*(sljit_hw*)buf_ptr = imma;
+	}
+
+	return !(flags & EX86_SHIFT_INS) ? buf : (buf + 1);
+}
+
+/* --------------------------------------------------------------------- */
+/*  Call / return instructions                                           */
+/* --------------------------------------------------------------------- */
+
+static SLJIT_INLINE int call_with_args(struct sljit_compiler *compiler, int type)
+{
+	sljit_ub *buf;
+
+#ifndef _WIN64
+	SLJIT_COMPILE_ASSERT(reg_map[SLJIT_TEMPORARY_REG2] == 6 && reg_map[SLJIT_TEMPORARY_REG1] < 8 && reg_map[SLJIT_TEMPORARY_REG3] < 8, args_registers);
+
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + ((type < SLJIT_CALL3) ? 3 : 6));
+	FAIL_IF(!buf);
+	INC_SIZE((type < SLJIT_CALL3) ? 3 : 6);
+	if (type >= SLJIT_CALL3) {
+		*buf++ = REX_W;
+		*buf++ = 0x8b;
+		*buf++ = 0xc0 | (0x2 << 3) | reg_lmap[SLJIT_TEMPORARY_REG3];
+	}
+	*buf++ = REX_W;
+	*buf++ = 0x8b;
+	*buf++ = 0xc0 | (0x7 << 3) | reg_lmap[SLJIT_TEMPORARY_REG1];
+#else
+	SLJIT_COMPILE_ASSERT(reg_map[SLJIT_TEMPORARY_REG2] == 2 && reg_map[SLJIT_TEMPORARY_REG1] < 8 && reg_map[SLJIT_TEMPORARY_REG3] < 8, args_registers);
+
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + ((type < SLJIT_CALL3) ? 3 : 6));
+	FAIL_IF(!buf);
+	INC_SIZE((type < SLJIT_CALL3) ? 3 : 6);
+	if (type >= SLJIT_CALL3) {
+		*buf++ = REX_W | REX_R;
+		*buf++ = 0x8b;
+		*buf++ = 0xc0 | (0x0 << 3) | reg_lmap[SLJIT_TEMPORARY_REG3];
+	}
+	*buf++ = REX_W;
+	*buf++ = 0x8b;
+	*buf++ = 0xc0 | (0x1 << 3) | reg_lmap[SLJIT_TEMPORARY_REG1];
+#endif
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw)
+{
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_fast_enter(compiler, dst, dstw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	/* For UNUSED dst. Uncommon, but possible. */
+	if (dst == SLJIT_UNUSED)
+		dst = TMP_REGISTER;
+
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) {
+		if (reg_map[dst] < 8) {
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+			FAIL_IF(!buf);
+
+			INC_SIZE(1);
+			POP_REG(reg_lmap[dst]);
+		}
+		else {
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 2);
+			FAIL_IF(!buf);
+
+			INC_SIZE(2);
+			*buf++ = REX_B;
+			POP_REG(reg_lmap[dst]);
+		}
+	}
+	else if (dst & SLJIT_MEM) {
+		/* REX_W is not necessary (src is not immediate). */
+		compiler->mode32 = 1;
+		buf = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw);
+		FAIL_IF(!buf);
+		*buf++ = 0x8f;
+	}
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
+{
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_fast_return(compiler, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	if ((src & SLJIT_IMM) && NOT_HALFWORD(srcw)) {
+		FAIL_IF(emit_load_imm64(compiler, TMP_REGISTER, srcw));
+		src = TMP_REGISTER;
+	}
+
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= TMP_REGISTER) {
+		if (reg_map[src] < 8) {
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 1 + 1);
+			FAIL_IF(!buf);
+
+			INC_SIZE(1 + 1);
+			PUSH_REG(reg_lmap[src]);
+		}
+		else {
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 2 + 1);
+			FAIL_IF(!buf);
+
+			INC_SIZE(2 + 1);
+			*buf++ = REX_B;
+			PUSH_REG(reg_lmap[src]);
+		}
+	}
+	else if (src & SLJIT_MEM) {
+		/* REX_W is not necessary (src is not immediate). */
+		compiler->mode32 = 1;
+		buf = emit_x86_instruction(compiler, 1, 0, 0, src, srcw);
+		FAIL_IF(!buf);
+		*buf++ = 0xff;
+		*buf |= 6 << 3;
+
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+		FAIL_IF(!buf);
+		INC_SIZE(1);
+	}
+	else {
+		SLJIT_ASSERT(IS_HALFWORD(srcw));
+		/* SLJIT_IMM. */
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 5 + 1);
+		FAIL_IF(!buf);
+
+		INC_SIZE(5 + 1);
+		*buf++ = 0x68;
+		*(sljit_hw*)buf = srcw;
+		buf += sizeof(sljit_hw);
+	}
+
+	RET();
+	return SLJIT_SUCCESS;
+}
+
+
+/* --------------------------------------------------------------------- */
+/*  Extend input                                                         */
+/* --------------------------------------------------------------------- */
+
+static int emit_mov_int(struct sljit_compiler *compiler, int sign,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	sljit_ub* code;
+	int dst_r;
+
+	compiler->mode32 = 0;
+
+	if (dst == SLJIT_UNUSED && !(src & SLJIT_MEM))
+		return SLJIT_SUCCESS; /* Empty instruction. */
+
+	if (src & SLJIT_IMM) {
+		if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+			if (sign || ((sljit_uw)srcw <= 0x7fffffff)) {
+				code = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_w)(sljit_i)srcw, dst, dstw);
+				FAIL_IF(!code);
+				*code = 0xc7;
+				return SLJIT_SUCCESS;
+			}
+			return emit_load_imm64(compiler, dst, srcw);
+		}
+		compiler->mode32 = 1;
+		code = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_w)(sljit_i)srcw, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0xc7;
+		compiler->mode32 = 0;
+		return SLJIT_SUCCESS;
+	}
+
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_SAVED_REG3) ? dst : TMP_REGISTER;
+
+	if ((dst & SLJIT_MEM) && (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_SAVED_REG3))
+		dst_r = src;
+	else {
+		if (sign) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, src, srcw);
+			FAIL_IF(!code);
+			*code++ = 0x63;
+		} else {
+			compiler->mode32 = 1;
+			FAIL_IF(emit_mov(compiler, dst_r, 0, src, srcw));
+			compiler->mode32 = 0;
+		}
+	}
+
+	if (dst & SLJIT_MEM) {
+		compiler->mode32 = 1;
+		code = emit_x86_instruction(compiler, 1, dst_r, 0, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0x89;
+		compiler->mode32 = 0;
+	}
+
+	return SLJIT_SUCCESS;
+}
diff --git a/8.31/sljit/sljitNativeX86_common.c b/8.31/sljit/sljitNativeX86_common.c
new file mode 100644
index 0000000..019e587
--- /dev/null
+++ b/8.31/sljit/sljitNativeX86_common.c
@@ -0,0 +1,2683 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
+{
+	return "x86" SLJIT_CPUINFO;
+}
+
+/*
+   32b register indexes:
+     0 - EAX
+     1 - ECX
+     2 - EDX
+     3 - EBX
+     4 - none
+     5 - EBP
+     6 - ESI
+     7 - EDI
+*/
+
+/*
+   64b register indexes:
+     0 - RAX
+     1 - RCX
+     2 - RDX
+     3 - RBX
+     4 - none
+     5 - RBP
+     6 - RSI
+     7 - RDI
+     8 - R8   - From now on REX prefix is required
+     9 - R9
+    10 - R10
+    11 - R11
+    12 - R12
+    13 - R13
+    14 - R14
+    15 - R15
+*/
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+
+/* Last register + 1. */
+#define TMP_REGISTER	(SLJIT_NO_REGISTERS + 1)
+
+static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 2] = {
+  0, 0, 2, 1, 0, 0, 3, 6, 7, 0, 0, 4, 5
+};
+
+#define CHECK_EXTRA_REGS(p, w, do) \
+	if (p >= SLJIT_TEMPORARY_EREG1 && p <= SLJIT_TEMPORARY_EREG2) { \
+		w = compiler->temporaries_start + (p - SLJIT_TEMPORARY_EREG1) * sizeof(sljit_w); \
+		p = SLJIT_MEM1(SLJIT_LOCALS_REG); \
+		do; \
+	} \
+	else if (p >= SLJIT_SAVED_EREG1 && p <= SLJIT_SAVED_EREG2) { \
+		w = compiler->saveds_start + (p - SLJIT_SAVED_EREG1) * sizeof(sljit_w); \
+		p = SLJIT_MEM1(SLJIT_LOCALS_REG); \
+		do; \
+	}
+
+#else /* SLJIT_CONFIG_X86_32 */
+
+/* Last register + 1. */
+#define TMP_REGISTER	(SLJIT_NO_REGISTERS + 1)
+#define TMP_REG2	(SLJIT_NO_REGISTERS + 2)
+#define TMP_REG3	(SLJIT_NO_REGISTERS + 3)
+
+/* Note: r12 & 0x7 == 0b100, which decoded as SIB byte present
+   Note: avoid to use r12 and r13 for memory addessing
+   therefore r12 is better for SAVED_EREG than SAVED_REG. */
+#ifndef _WIN64
+/* 1st passed in rdi, 2nd argument passed in rsi, 3rd in rdx. */
+static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 4] = {
+  0, 0, 6, 1, 8, 11, 3, 15, 14, 13, 12, 4, 2, 7, 9
+};
+/* low-map. reg_map & 0x7. */
+static SLJIT_CONST sljit_ub reg_lmap[SLJIT_NO_REGISTERS + 4] = {
+  0, 0, 6, 1, 0, 3,  3, 7,  6,  5,  4,  4, 2, 7, 1
+};
+#else
+/* 1st passed in rcx, 2nd argument passed in rdx, 3rd in r8. */
+static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 4] = {
+  0, 0, 2, 1, 11, 13, 3, 6, 7, 14, 15, 4, 10, 8, 9
+};
+/* low-map. reg_map & 0x7. */
+static SLJIT_CONST sljit_ub reg_lmap[SLJIT_NO_REGISTERS + 4] = {
+  0, 0, 2, 1, 3,  5,  3, 6, 7,  6,  7, 4, 2,  0, 1
+};
+#endif
+
+#define REX_W		0x48
+#define REX_R		0x44
+#define REX_X		0x42
+#define REX_B		0x41
+#define REX		0x40
+
+typedef unsigned int sljit_uhw;
+typedef int sljit_hw;
+
+#define IS_HALFWORD(x)		((x) <= 0x7fffffffll && (x) >= -0x80000000ll)
+#define NOT_HALFWORD(x)		((x) > 0x7fffffffll || (x) < -0x80000000ll)
+
+#define CHECK_EXTRA_REGS(p, w, do)
+
+#endif /* SLJIT_CONFIG_X86_32 */
+
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+#define TMP_FREG	(SLJIT_FLOAT_REG4 + 1)
+#endif
+
+/* Size flags for emit_x86_instruction: */
+#define EX86_BIN_INS		0x0010
+#define EX86_SHIFT_INS		0x0020
+#define EX86_REX		0x0040
+#define EX86_NO_REXW		0x0080
+#define EX86_BYTE_ARG		0x0100
+#define EX86_HALF_ARG		0x0200
+#define EX86_PREF_66		0x0400
+
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+#define EX86_PREF_F2		0x0800
+#define EX86_SSE2		0x1000
+#endif
+
+#define INC_SIZE(s)			(*buf++ = (s), compiler->size += (s))
+#define INC_CSIZE(s)			(*code++ = (s), compiler->size += (s))
+
+#define PUSH_REG(r)			(*buf++ = (0x50 + (r)))
+#define POP_REG(r)			(*buf++ = (0x58 + (r)))
+#define RET()				(*buf++ = (0xc3))
+#define RETN(n)				(*buf++ = (0xc2), *buf++ = n, *buf++ = 0)
+/* r32, r/m32 */
+#define MOV_RM(mod, reg, rm)		(*buf++ = (0x8b), *buf++ = (mod) << 6 | (reg) << 3 | (rm))
+
+static sljit_ub get_jump_code(int type)
+{
+	switch (type) {
+	case SLJIT_C_EQUAL:
+	case SLJIT_C_FLOAT_EQUAL:
+		return 0x84;
+
+	case SLJIT_C_NOT_EQUAL:
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		return 0x85;
+
+	case SLJIT_C_LESS:
+	case SLJIT_C_FLOAT_LESS:
+		return 0x82;
+
+	case SLJIT_C_GREATER_EQUAL:
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		return 0x83;
+
+	case SLJIT_C_GREATER:
+	case SLJIT_C_FLOAT_GREATER:
+		return 0x87;
+
+	case SLJIT_C_LESS_EQUAL:
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		return 0x86;
+
+	case SLJIT_C_SIG_LESS:
+		return 0x8c;
+
+	case SLJIT_C_SIG_GREATER_EQUAL:
+		return 0x8d;
+
+	case SLJIT_C_SIG_GREATER:
+		return 0x8f;
+
+	case SLJIT_C_SIG_LESS_EQUAL:
+		return 0x8e;
+
+	case SLJIT_C_OVERFLOW:
+	case SLJIT_C_MUL_OVERFLOW:
+		return 0x80;
+
+	case SLJIT_C_NOT_OVERFLOW:
+	case SLJIT_C_MUL_NOT_OVERFLOW:
+		return 0x81;
+
+	case SLJIT_C_FLOAT_NAN:
+		return 0x8a;
+
+	case SLJIT_C_FLOAT_NOT_NAN:
+		return 0x8b;
+	}
+	return 0;
+}
+
+static sljit_ub* generate_far_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, int type);
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+static sljit_ub* generate_fixed_jump(sljit_ub *code_ptr, sljit_w addr, int type);
+#endif
+
+static sljit_ub* generate_near_jump_code(struct sljit_jump *jump, sljit_ub *code_ptr, sljit_ub *code, int type)
+{
+	int short_jump;
+	sljit_uw label_addr;
+
+	if (jump->flags & JUMP_LABEL)
+		label_addr = (sljit_uw)(code + jump->u.label->size);
+	else
+		label_addr = jump->u.target;
+	short_jump = (sljit_w)(label_addr - (jump->addr + 2)) >= -128 && (sljit_w)(label_addr - (jump->addr + 2)) <= 127;
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	if ((sljit_w)(label_addr - (jump->addr + 1)) > 0x7fffffffll || (sljit_w)(label_addr - (jump->addr + 1)) < -0x80000000ll)
+		return generate_far_jump_code(jump, code_ptr, type);
+#endif
+
+	if (type == SLJIT_JUMP) {
+		if (short_jump)
+			*code_ptr++ = 0xeb;
+		else
+			*code_ptr++ = 0xe9;
+		jump->addr++;
+	}
+	else if (type >= SLJIT_FAST_CALL) {
+		short_jump = 0;
+		*code_ptr++ = 0xe8;
+		jump->addr++;
+	}
+	else if (short_jump) {
+		*code_ptr++ = get_jump_code(type) - 0x10;
+		jump->addr++;
+	}
+	else {
+		*code_ptr++ = 0x0f;
+		*code_ptr++ = get_jump_code(type);
+		jump->addr += 2;
+	}
+
+	if (short_jump) {
+		jump->flags |= PATCH_MB;
+		code_ptr += sizeof(sljit_b);
+	} else {
+		jump->flags |= PATCH_MW;
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		code_ptr += sizeof(sljit_w);
+#else
+		code_ptr += sizeof(sljit_hw);
+#endif
+	}
+
+	return code_ptr;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
+{
+	struct sljit_memory_fragment *buf;
+	sljit_ub *code;
+	sljit_ub *code_ptr;
+	sljit_ub *buf_ptr;
+	sljit_ub *buf_end;
+	sljit_ub len;
+
+	struct sljit_label *label;
+	struct sljit_jump *jump;
+	struct sljit_const *const_;
+
+	CHECK_ERROR_PTR();
+	check_sljit_generate_code(compiler);
+	reverse_buf(compiler);
+
+	/* Second code generation pass. */
+	code = (sljit_ub*)SLJIT_MALLOC_EXEC(compiler->size);
+	PTR_FAIL_WITH_EXEC_IF(code);
+	buf = compiler->buf;
+
+	code_ptr = code;
+	label = compiler->labels;
+	jump = compiler->jumps;
+	const_ = compiler->consts;
+	do {
+		buf_ptr = buf->memory;
+		buf_end = buf_ptr + buf->used_size;
+		do {
+			len = *buf_ptr++;
+			if (len > 0) {
+				/* The code is already generated. */
+				SLJIT_MEMMOVE(code_ptr, buf_ptr, len);
+				code_ptr += len;
+				buf_ptr += len;
+			}
+			else {
+				if (*buf_ptr >= 4) {
+					jump->addr = (sljit_uw)code_ptr;
+					if (!(jump->flags & SLJIT_REWRITABLE_JUMP))
+						code_ptr = generate_near_jump_code(jump, code_ptr, code, *buf_ptr - 4);
+					else
+						code_ptr = generate_far_jump_code(jump, code_ptr, *buf_ptr - 4);
+					jump = jump->next;
+				}
+				else if (*buf_ptr == 0) {
+					label->addr = (sljit_uw)code_ptr;
+					label->size = code_ptr - code;
+					label = label->next;
+				}
+				else if (*buf_ptr == 1) {
+					const_->addr = ((sljit_uw)code_ptr) - sizeof(sljit_w);
+					const_ = const_->next;
+				}
+				else {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+					*code_ptr++ = (*buf_ptr == 2) ? 0xe8 /* call */ : 0xe9 /* jmp */;
+					buf_ptr++;
+					*(sljit_w*)code_ptr = *(sljit_w*)buf_ptr - ((sljit_w)code_ptr + sizeof(sljit_w));
+					code_ptr += sizeof(sljit_w);
+					buf_ptr += sizeof(sljit_w) - 1;
+#else
+					code_ptr = generate_fixed_jump(code_ptr, *(sljit_w*)(buf_ptr + 1), *buf_ptr);
+					buf_ptr += sizeof(sljit_w);
+#endif
+				}
+				buf_ptr++;
+			}
+		} while (buf_ptr < buf_end);
+		SLJIT_ASSERT(buf_ptr == buf_end);
+		buf = buf->next;
+	} while (buf);
+
+	SLJIT_ASSERT(!label);
+	SLJIT_ASSERT(!jump);
+	SLJIT_ASSERT(!const_);
+
+	jump = compiler->jumps;
+	while (jump) {
+		if (jump->flags & PATCH_MB) {
+			SLJIT_ASSERT((sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_b))) >= -128 && (sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_b))) <= 127);
+			*(sljit_ub*)jump->addr = (sljit_ub)(jump->u.label->addr - (jump->addr + sizeof(sljit_b)));
+		} else if (jump->flags & PATCH_MW) {
+			if (jump->flags & JUMP_LABEL) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+				*(sljit_w*)jump->addr = (sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_w)));
+#else
+				SLJIT_ASSERT((sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_hw))) >= -0x80000000ll && (sljit_w)(jump->u.label->addr - (jump->addr + sizeof(sljit_hw))) <= 0x7fffffffll);
+				*(sljit_hw*)jump->addr = (sljit_hw)(jump->u.label->addr - (jump->addr + sizeof(sljit_hw)));
+#endif
+			}
+			else {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+				*(sljit_w*)jump->addr = (sljit_w)(jump->u.target - (jump->addr + sizeof(sljit_w)));
+#else
+				SLJIT_ASSERT((sljit_w)(jump->u.target - (jump->addr + sizeof(sljit_hw))) >= -0x80000000ll && (sljit_w)(jump->u.target - (jump->addr + sizeof(sljit_hw))) <= 0x7fffffffll);
+				*(sljit_hw*)jump->addr = (sljit_hw)(jump->u.target - (jump->addr + sizeof(sljit_hw)));
+#endif
+			}
+		}
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		else if (jump->flags & PATCH_MD)
+			*(sljit_w*)jump->addr = jump->u.label->addr;
+#endif
+
+		jump = jump->next;
+	}
+
+	/* Maybe we waste some space because of short jumps. */
+	SLJIT_ASSERT(code_ptr <= code + compiler->size);
+	compiler->error = SLJIT_ERR_COMPILED;
+	compiler->executable_size = compiler->size;
+	return (void*)code;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Operators                                                            */
+/* --------------------------------------------------------------------- */
+
+static int emit_cum_binary(struct sljit_compiler *compiler,
+	sljit_ub op_rm, sljit_ub op_mr, sljit_ub op_imm, sljit_ub op_eax_imm,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+static int emit_non_cum_binary(struct sljit_compiler *compiler,
+	sljit_ub op_rm, sljit_ub op_mr, sljit_ub op_imm, sljit_ub op_eax_imm,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w);
+
+static int emit_mov(struct sljit_compiler *compiler,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw);
+
+static SLJIT_INLINE int emit_save_flags(struct sljit_compiler *compiler)
+{
+	sljit_ub *buf;
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + 5);
+	FAIL_IF(!buf);
+	INC_SIZE(5);
+#else
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + 6);
+	FAIL_IF(!buf);
+	INC_SIZE(6);
+	*buf++ = REX_W;
+#endif
+	*buf++ = 0x8d; /* lea esp/rsp, [esp/rsp + sizeof(sljit_w)] */
+	*buf++ = 0x64;
+	*buf++ = 0x24;
+	*buf++ = (sljit_ub)sizeof(sljit_w);
+	*buf++ = 0x9c; /* pushfd / pushfq */
+	compiler->flags_saved = 1;
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int emit_restore_flags(struct sljit_compiler *compiler, int keep_flags)
+{
+	sljit_ub *buf;
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + 5);
+	FAIL_IF(!buf);
+	INC_SIZE(5);
+	*buf++ = 0x9d; /* popfd */
+#else
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + 6);
+	FAIL_IF(!buf);
+	INC_SIZE(6);
+	*buf++ = 0x9d; /* popfq */
+	*buf++ = REX_W;
+#endif
+	*buf++ = 0x8d; /* lea esp/rsp, [esp/rsp - sizeof(sljit_w)] */
+	*buf++ = 0x64;
+	*buf++ = 0x24;
+	*buf++ = (sljit_ub)-(int)sizeof(sljit_w);
+	compiler->flags_saved = keep_flags;
+	return SLJIT_SUCCESS;
+}
+
+#ifdef _WIN32
+#include <malloc.h>
+
+static void SLJIT_CALL sljit_grow_stack(sljit_w local_size)
+{
+	/* Workaround for calling the internal _chkstk() function on Windows.
+	This function touches all 4k pages belongs to the requested stack space,
+	which size is passed in local_size. This is necessary on Windows where
+	the stack can only grow in 4k steps. However, this function just burn
+	CPU cycles if the stack is large enough, but you don't know it in advance.
+	I think this is a bad design even if it has some reasons. */
+	alloca(local_size);
+}
+
+#endif
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+#include "sljitNativeX86_32.c"
+#else
+#include "sljitNativeX86_64.c"
+#endif
+
+static int emit_mov(struct sljit_compiler *compiler,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	sljit_ub* code;
+
+	if (dst == SLJIT_UNUSED) {
+		/* No destination, doesn't need to setup flags. */
+		if (src & SLJIT_MEM) {
+			code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src, srcw);
+			FAIL_IF(!code);
+			*code = 0x8b;
+		}
+		return SLJIT_SUCCESS;
+	}
+	if (src >= SLJIT_TEMPORARY_REG1 && src <= TMP_REGISTER) {
+		code = emit_x86_instruction(compiler, 1, src, 0, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0x89;
+		return SLJIT_SUCCESS;
+	}
+	if (src & SLJIT_IMM) {
+		if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+			return emit_do_imm(compiler, 0xb8 + reg_map[dst], srcw);
+#else
+			if (!compiler->mode32) {
+				if (NOT_HALFWORD(srcw))
+					return emit_load_imm64(compiler, dst, srcw);
+			}
+			else
+				return emit_do_imm32(compiler, (reg_map[dst] >= 8) ? REX_B : 0, 0xb8 + reg_lmap[dst], srcw);
+#endif
+		}
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		if (!compiler->mode32 && NOT_HALFWORD(srcw)) {
+			FAIL_IF(emit_load_imm64(compiler, TMP_REG2, srcw));
+			code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, dst, dstw);
+			FAIL_IF(!code);
+			*code = 0x89;
+			return SLJIT_SUCCESS;
+		}
+#endif
+		code = emit_x86_instruction(compiler, 1, SLJIT_IMM, srcw, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0xc7;
+		return SLJIT_SUCCESS;
+	}
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) {
+		code = emit_x86_instruction(compiler, 1, dst, 0, src, srcw);
+		FAIL_IF(!code);
+		*code = 0x8b;
+		return SLJIT_SUCCESS;
+	}
+
+	/* Memory to memory move. Requires two instruction. */
+	code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src, srcw);
+	FAIL_IF(!code);
+	*code = 0x8b;
+	code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, dst, dstw);
+	FAIL_IF(!code);
+	*code = 0x89;
+	return SLJIT_SUCCESS;
+}
+
+#define EMIT_MOV(compiler, dst, dstw, src, srcw) \
+	FAIL_IF(emit_mov(compiler, dst, dstw, src, srcw));
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
+{
+	sljit_ub *buf;
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	int size;
+#endif
+
+	CHECK_ERROR();
+	check_sljit_emit_op0(compiler, op);
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_BREAKPOINT:
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+		FAIL_IF(!buf);
+		INC_SIZE(1);
+		*buf = 0xcc;
+		break;
+	case SLJIT_NOP:
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+		FAIL_IF(!buf);
+		INC_SIZE(1);
+		*buf = 0x90;
+		break;
+	case SLJIT_UMUL:
+	case SLJIT_SMUL:
+	case SLJIT_UDIV:
+	case SLJIT_SDIV:
+		compiler->flags_saved = 0;
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+#ifdef _WIN64
+		SLJIT_COMPILE_ASSERT(
+			reg_map[SLJIT_TEMPORARY_REG1] == 0
+			&& reg_map[SLJIT_TEMPORARY_REG2] == 2
+			&& reg_map[TMP_REGISTER] > 7,
+			invalid_register_assignment_for_div_mul);
+#else
+		SLJIT_COMPILE_ASSERT(
+			reg_map[SLJIT_TEMPORARY_REG1] == 0
+			&& reg_map[SLJIT_TEMPORARY_REG2] < 7
+			&& reg_map[TMP_REGISTER] == 2,
+			invalid_register_assignment_for_div_mul);
+#endif
+		compiler->mode32 = op & SLJIT_INT_OP;
+#endif
+
+		op = GET_OPCODE(op);
+		if (op == SLJIT_UDIV) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || defined(_WIN64)
+			EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_TEMPORARY_REG2, 0);
+			buf = emit_x86_instruction(compiler, 1, SLJIT_TEMPORARY_REG2, 0, SLJIT_TEMPORARY_REG2, 0);
+#else
+			buf = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, TMP_REGISTER, 0);
+#endif
+			FAIL_IF(!buf);
+			*buf = 0x33;
+		}
+
+		if (op == SLJIT_SDIV) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || defined(_WIN64)
+			EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_TEMPORARY_REG2, 0);
+#endif
+
+			/* CDQ instruction */
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+			FAIL_IF(!buf);
+			INC_SIZE(1);
+			*buf = 0x99;
+#else
+			if (compiler->mode32) {
+				buf = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+				FAIL_IF(!buf);
+				INC_SIZE(1);
+				*buf = 0x99;
+			} else {
+				buf = (sljit_ub*)ensure_buf(compiler, 1 + 2);
+				FAIL_IF(!buf);
+				INC_SIZE(2);
+				*buf++ = REX_W;
+				*buf = 0x99;
+			}
+#endif
+		}
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + 2);
+		FAIL_IF(!buf);
+		INC_SIZE(2);
+		*buf++ = 0xf7;
+		*buf = 0xc0 | ((op >= SLJIT_UDIV) ? reg_map[TMP_REGISTER] : reg_map[SLJIT_TEMPORARY_REG2]);
+#else
+#ifdef _WIN64
+		size = (!compiler->mode32 || op >= SLJIT_UDIV) ? 3 : 2;
+#else
+		size = (!compiler->mode32) ? 3 : 2;
+#endif
+		buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
+		FAIL_IF(!buf);
+		INC_SIZE(size);
+#ifdef _WIN64
+		if (!compiler->mode32)
+			*buf++ = REX_W | ((op >= SLJIT_UDIV) ? REX_B : 0);
+		else if (op >= SLJIT_UDIV)
+			*buf++ = REX_B;
+		*buf++ = 0xf7;
+		*buf = 0xc0 | ((op >= SLJIT_UDIV) ? reg_lmap[TMP_REGISTER] : reg_lmap[SLJIT_TEMPORARY_REG2]);
+#else
+		if (!compiler->mode32)
+			*buf++ = REX_W;
+		*buf++ = 0xf7;
+		*buf = 0xc0 | reg_map[SLJIT_TEMPORARY_REG2];
+#endif
+#endif
+		switch (op) {
+		case SLJIT_UMUL:
+			*buf |= 4 << 3;
+			break;
+		case SLJIT_SMUL:
+			*buf |= 5 << 3;
+			break;
+		case SLJIT_UDIV:
+			*buf |= 6 << 3;
+			break;
+		case SLJIT_SDIV:
+			*buf |= 7 << 3;
+			break;
+		}
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && !defined(_WIN64)
+		EMIT_MOV(compiler, SLJIT_TEMPORARY_REG2, 0, TMP_REGISTER, 0);
+#endif
+		break;
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+#define ENCODE_PREFIX(prefix) \
+	do { \
+		code = (sljit_ub*)ensure_buf(compiler, 1 + 1); \
+		FAIL_IF(!code); \
+		INC_CSIZE(1); \
+		*code = (prefix); \
+	} while (0)
+
+static int emit_mov_byte(struct sljit_compiler *compiler, int sign,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	sljit_ub* code;
+	int dst_r;
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	int work_r;
+#endif
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	compiler->mode32 = 0;
+#endif
+
+	if (dst == SLJIT_UNUSED && !(src & SLJIT_MEM))
+		return SLJIT_SUCCESS; /* Empty instruction. */
+
+	if (src & SLJIT_IMM) {
+		if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+			return emit_do_imm(compiler, 0xb8 + reg_map[dst], srcw);
+#else
+			return emit_load_imm64(compiler, dst, srcw);
+#endif
+		}
+		code = emit_x86_instruction(compiler, 1 | EX86_BYTE_ARG | EX86_NO_REXW, SLJIT_IMM, srcw, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0xc6;
+		return SLJIT_SUCCESS;
+	}
+
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) ? dst : TMP_REGISTER;
+
+	if ((dst & SLJIT_MEM) && src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		if (reg_map[src] >= 4) {
+			SLJIT_ASSERT(dst_r == TMP_REGISTER);
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src, 0);
+		} else
+			dst_r = src;
+#else
+		dst_r = src;
+#endif
+	}
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	else if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS && reg_map[src] >= 4) {
+		/* src, dst are registers. */
+		SLJIT_ASSERT(dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER);
+		if (reg_map[dst] < 4) {
+			if (dst != src)
+				EMIT_MOV(compiler, dst, 0, src, 0);
+			code = emit_x86_instruction(compiler, 2, dst, 0, dst, 0);
+			FAIL_IF(!code);
+			*code++ = 0x0f;
+			*code = sign ? 0xbe : 0xb6;
+		}
+		else {
+			if (dst != src)
+				EMIT_MOV(compiler, dst, 0, src, 0);
+			if (sign) {
+				/* shl reg, 24 */
+				code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, 24, dst, 0);
+				FAIL_IF(!code);
+				*code |= 0x4 << 3;
+				code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, 24, dst, 0);
+				FAIL_IF(!code);
+				/* shr/sar reg, 24 */
+				*code |= 0x7 << 3;
+			}
+			else {
+				/* and dst, 0xff */
+				code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, 255, dst, 0);
+				FAIL_IF(!code);
+				*(code + 1) |= 0x4 << 3;
+			}
+		}
+		return SLJIT_SUCCESS;
+	}
+#endif
+	else {
+		/* src can be memory addr or reg_map[src] < 4 on x86_32 architectures. */
+		code = emit_x86_instruction(compiler, 2, dst_r, 0, src, srcw);
+		FAIL_IF(!code);
+		*code++ = 0x0f;
+		*code = sign ? 0xbe : 0xb6;
+	}
+
+	if (dst & SLJIT_MEM) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		if (dst_r == TMP_REGISTER) {
+			/* Find a non-used register, whose reg_map[src] < 4. */
+			if ((dst & 0xf) == SLJIT_TEMPORARY_REG1) {
+				if ((dst & 0xf0) == (SLJIT_TEMPORARY_REG2 << 4))
+					work_r = SLJIT_TEMPORARY_REG3;
+				else
+					work_r = SLJIT_TEMPORARY_REG2;
+			}
+			else {
+				if ((dst & 0xf0) != (SLJIT_TEMPORARY_REG1 << 4))
+					work_r = SLJIT_TEMPORARY_REG1;
+				else if ((dst & 0xf) == SLJIT_TEMPORARY_REG2)
+					work_r = SLJIT_TEMPORARY_REG3;
+				else
+					work_r = SLJIT_TEMPORARY_REG2;
+			}
+
+			if (work_r == SLJIT_TEMPORARY_REG1) {
+				ENCODE_PREFIX(0x90 + reg_map[TMP_REGISTER]);
+			}
+			else {
+				code = emit_x86_instruction(compiler, 1, work_r, 0, dst_r, 0);
+				FAIL_IF(!code);
+				*code = 0x87;
+			}
+
+			code = emit_x86_instruction(compiler, 1, work_r, 0, dst, dstw);
+			FAIL_IF(!code);
+			*code = 0x88;
+
+			if (work_r == SLJIT_TEMPORARY_REG1) {
+				ENCODE_PREFIX(0x90 + reg_map[TMP_REGISTER]);
+			}
+			else {
+				code = emit_x86_instruction(compiler, 1, work_r, 0, dst_r, 0);
+				FAIL_IF(!code);
+				*code = 0x87;
+			}
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, dst, dstw);
+			FAIL_IF(!code);
+			*code = 0x88;
+		}
+#else
+		code = emit_x86_instruction(compiler, 1 | EX86_REX | EX86_NO_REXW, dst_r, 0, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0x88;
+#endif
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+static int emit_mov_half(struct sljit_compiler *compiler, int sign,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	sljit_ub* code;
+	int dst_r;
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	compiler->mode32 = 0;
+#endif
+
+	if (dst == SLJIT_UNUSED && !(src & SLJIT_MEM))
+		return SLJIT_SUCCESS; /* Empty instruction. */
+
+	if (src & SLJIT_IMM) {
+		if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+			return emit_do_imm(compiler, 0xb8 + reg_map[dst], srcw);
+#else
+			return emit_load_imm64(compiler, dst, srcw);
+#endif
+		}
+		code = emit_x86_instruction(compiler, 1 | EX86_HALF_ARG | EX86_NO_REXW | EX86_PREF_66, SLJIT_IMM, srcw, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0xc7;
+		return SLJIT_SUCCESS;
+	}
+
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) ? dst : TMP_REGISTER;
+
+	if ((dst & SLJIT_MEM) && (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS))
+		dst_r = src;
+	else {
+		code = emit_x86_instruction(compiler, 2, dst_r, 0, src, srcw);
+		FAIL_IF(!code);
+		*code++ = 0x0f;
+		*code = sign ? 0xbf : 0xb7;
+	}
+
+	if (dst & SLJIT_MEM) {
+		code = emit_x86_instruction(compiler, 1 | EX86_NO_REXW | EX86_PREF_66, dst_r, 0, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0x89;
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+static int emit_unary(struct sljit_compiler *compiler, int un_index,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	sljit_ub* code;
+
+	if (dst == SLJIT_UNUSED) {
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw);
+		code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0);
+		FAIL_IF(!code);
+		*code++ = 0xf7;
+		*code |= (un_index) << 3;
+		return SLJIT_SUCCESS;
+	}
+	if (dst == src && dstw == srcw) {
+		/* Same input and output */
+		code = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw);
+		FAIL_IF(!code);
+		*code++ = 0xf7;
+		*code |= (un_index) << 3;
+		return SLJIT_SUCCESS;
+	}
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+		EMIT_MOV(compiler, dst, 0, src, srcw);
+		code = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw);
+		FAIL_IF(!code);
+		*code++ = 0xf7;
+		*code |= (un_index) << 3;
+		return SLJIT_SUCCESS;
+	}
+	EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw);
+	code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0);
+	FAIL_IF(!code);
+	*code++ = 0xf7;
+	*code |= (un_index) << 3;
+	EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0);
+	return SLJIT_SUCCESS;
+}
+
+static int emit_not_with_flags(struct sljit_compiler *compiler,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	sljit_ub* code;
+
+	if (dst == SLJIT_UNUSED) {
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw);
+		code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0);
+		FAIL_IF(!code);
+		*code++ = 0xf7;
+		*code |= 0x2 << 3;
+		code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, TMP_REGISTER, 0);
+		FAIL_IF(!code);
+		*code = 0x0b;
+		return SLJIT_SUCCESS;
+	}
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+		EMIT_MOV(compiler, dst, 0, src, srcw);
+		code = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw);
+		FAIL_IF(!code);
+		*code++ = 0xf7;
+		*code |= 0x2 << 3;
+		code = emit_x86_instruction(compiler, 1, dst, 0, dst, 0);
+		FAIL_IF(!code);
+		*code = 0x0b;
+		return SLJIT_SUCCESS;
+	}
+	EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw);
+	code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0);
+	FAIL_IF(!code);
+	*code++ = 0xf7;
+	*code |= 0x2 << 3;
+	code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, TMP_REGISTER, 0);
+	FAIL_IF(!code);
+	*code = 0x0b;
+	EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0);
+	return SLJIT_SUCCESS;
+}
+
+static int emit_clz(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	sljit_ub* code;
+	int dst_r;
+
+	SLJIT_UNUSED_ARG(op);
+	if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
+		/* Just set the zero flag. */
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw);
+		code = emit_x86_instruction(compiler, 1, 0, 0, TMP_REGISTER, 0);
+		FAIL_IF(!code);
+		*code++ = 0xf7;
+		*code |= 0x2 << 3;
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, 31, TMP_REGISTER, 0);
+#else
+		code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, !(op & SLJIT_INT_OP) ? 63 : 31, TMP_REGISTER, 0);
+#endif
+		FAIL_IF(!code);
+		*code |= 0x5 << 3;
+		return SLJIT_SUCCESS;
+	}
+
+	if (SLJIT_UNLIKELY(src & SLJIT_IMM)) {
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src, srcw);
+		src = TMP_REGISTER;
+		srcw = 0;
+	}
+
+	code = emit_x86_instruction(compiler, 2, TMP_REGISTER, 0, src, srcw);
+	FAIL_IF(!code);
+	*code++ = 0x0f;
+	*code = 0xbd;
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER)
+		dst_r = dst;
+	else {
+		/* Find an unused temporary register. */
+		if ((dst & 0xf) != SLJIT_TEMPORARY_REG1 && (dst & 0xf0) != (SLJIT_TEMPORARY_REG1 << 4))
+			dst_r = SLJIT_TEMPORARY_REG1;
+		else if ((dst & 0xf) != SLJIT_TEMPORARY_REG2 && (dst & 0xf0) != (SLJIT_TEMPORARY_REG2 << 4))
+			dst_r = SLJIT_TEMPORARY_REG2;
+		else
+			dst_r = SLJIT_TEMPORARY_REG3;
+		EMIT_MOV(compiler, dst, dstw, dst_r, 0);
+	}
+	EMIT_MOV(compiler, dst_r, 0, SLJIT_IMM, 32 + 31);
+#else
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REGISTER) ? dst : TMP_REG2;
+	compiler->mode32 = 0;
+	EMIT_MOV(compiler, dst_r, 0, SLJIT_IMM, !(op & SLJIT_INT_OP) ? 64 + 63 : 32 + 31);
+	compiler->mode32 = op & SLJIT_INT_OP;
+#endif
+
+	code = emit_x86_instruction(compiler, 2, dst_r, 0, TMP_REGISTER, 0);
+	FAIL_IF(!code);
+	*code++ = 0x0f;
+	*code = 0x45;
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, 31, dst_r, 0);
+#else
+	code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, !(op & SLJIT_INT_OP) ? 63 : 31, dst_r, 0);
+#endif
+	FAIL_IF(!code);
+	*(code + 1) |= 0x6 << 3;
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	if (dst & SLJIT_MEM) {
+		code = emit_x86_instruction(compiler, 1, dst_r, 0, dst, dstw);
+		FAIL_IF(!code);
+		*code = 0x87;
+	}
+#else
+	if (dst & SLJIT_MEM)
+		EMIT_MOV(compiler, dst, dstw, TMP_REG2, 0);
+#endif
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	sljit_ub* code;
+	int update = 0;
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	int dst_is_ereg = 0;
+	int src_is_ereg = 0;
+#else
+	#define src_is_ereg 0
+#endif
+
+	CHECK_ERROR();
+	check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	CHECK_EXTRA_REGS(dst, dstw, dst_is_ereg = 1);
+	CHECK_EXTRA_REGS(src, srcw, src_is_ereg = 1);
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	compiler->mode32 = op & SLJIT_INT_OP;
+#endif
+
+	if (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI) {
+		op = GET_OPCODE(op);
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		compiler->mode32 = 0;
+#endif
+
+		SLJIT_COMPILE_ASSERT(SLJIT_MOV + 7 == SLJIT_MOVU, movu_offset);
+		if (op >= SLJIT_MOVU) {
+			update = 1;
+			op -= 7;
+		}
+
+		if (src & SLJIT_IMM) {
+			switch (op) {
+			case SLJIT_MOV_UB:
+				srcw = (unsigned char)srcw;
+				break;
+			case SLJIT_MOV_SB:
+				srcw = (signed char)srcw;
+				break;
+			case SLJIT_MOV_UH:
+				srcw = (unsigned short)srcw;
+				break;
+			case SLJIT_MOV_SH:
+				srcw = (signed short)srcw;
+				break;
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+			case SLJIT_MOV_UI:
+				srcw = (unsigned int)srcw;
+				break;
+			case SLJIT_MOV_SI:
+				srcw = (signed int)srcw;
+				break;
+#endif
+			}
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+			if (SLJIT_UNLIKELY(dst_is_ereg))
+				return emit_mov(compiler, dst, dstw, src, srcw);
+#endif
+		}
+
+		if (SLJIT_UNLIKELY(update) && (src & SLJIT_MEM) && !src_is_ereg && (src & 0xf) && (srcw != 0 || (src & 0xf0) != 0)) {
+			code = emit_x86_instruction(compiler, 1, src & 0xf, 0, src, srcw);
+			FAIL_IF(!code);
+			*code = 0x8d;
+			src &= SLJIT_MEM | 0xf;
+			srcw = 0;
+		}
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		if (SLJIT_UNLIKELY(dst_is_ereg) && (!(op == SLJIT_MOV || op == SLJIT_MOV_UI || op == SLJIT_MOV_SI) || (src & SLJIT_MEM))) {
+			SLJIT_ASSERT(dst == SLJIT_MEM1(SLJIT_LOCALS_REG));
+			dst = TMP_REGISTER;
+		}
+#endif
+
+		switch (op) {
+		case SLJIT_MOV:
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		case SLJIT_MOV_UI:
+		case SLJIT_MOV_SI:
+#endif
+			FAIL_IF(emit_mov(compiler, dst, dstw, src, srcw));
+			break;
+		case SLJIT_MOV_UB:
+			FAIL_IF(emit_mov_byte(compiler, 0, dst, dstw, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw));
+			break;
+		case SLJIT_MOV_SB:
+			FAIL_IF(emit_mov_byte(compiler, 1, dst, dstw, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw));
+			break;
+		case SLJIT_MOV_UH:
+			FAIL_IF(emit_mov_half(compiler, 0, dst, dstw, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw));
+			break;
+		case SLJIT_MOV_SH:
+			FAIL_IF(emit_mov_half(compiler, 1, dst, dstw, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw));
+			break;
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		case SLJIT_MOV_UI:
+			FAIL_IF(emit_mov_int(compiler, 0, dst, dstw, src, (src & SLJIT_IMM) ? (unsigned int)srcw : srcw));
+			break;
+		case SLJIT_MOV_SI:
+			FAIL_IF(emit_mov_int(compiler, 1, dst, dstw, src, (src & SLJIT_IMM) ? (signed int)srcw : srcw));
+			break;
+#endif
+		}
+
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		if (SLJIT_UNLIKELY(dst_is_ereg) && dst == TMP_REGISTER)
+			return emit_mov(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), dstw, TMP_REGISTER, 0);
+#endif
+
+		if (SLJIT_UNLIKELY(update) && (dst & SLJIT_MEM) && (dst & 0xf) && (dstw != 0 || (dst & 0xf0) != 0)) {
+			code = emit_x86_instruction(compiler, 1, dst & 0xf, 0, dst, dstw);
+			FAIL_IF(!code);
+			*code = 0x8d;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	if (SLJIT_UNLIKELY(GET_FLAGS(op)))
+		compiler->flags_saved = 0;
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_NOT:
+		if (SLJIT_UNLIKELY(op & SLJIT_SET_E))
+			return emit_not_with_flags(compiler, dst, dstw, src, srcw);
+		return emit_unary(compiler, 0x2, dst, dstw, src, srcw);
+
+	case SLJIT_NEG:
+		if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved)
+			FAIL_IF(emit_save_flags(compiler));
+		return emit_unary(compiler, 0x3, dst, dstw, src, srcw);
+
+	case SLJIT_CLZ:
+		if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved)
+			FAIL_IF(emit_save_flags(compiler));
+		return emit_clz(compiler, op, dst, dstw, src, srcw);
+	}
+
+	return SLJIT_SUCCESS;
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	#undef src_is_ereg
+#endif
+}
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+
+#define BINARY_IMM(_op_imm_, _op_mr_, immw, arg, argw) \
+	if (IS_HALFWORD(immw) || compiler->mode32) { \
+		code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, immw, arg, argw); \
+		FAIL_IF(!code); \
+		*(code + 1) |= (_op_imm_); \
+	} \
+	else { \
+		FAIL_IF(emit_load_imm64(compiler, TMP_REG2, immw)); \
+		code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, arg, argw); \
+		FAIL_IF(!code); \
+		*code = (_op_mr_); \
+	}
+
+#define BINARY_EAX_IMM(_op_eax_imm_, immw) \
+	FAIL_IF(emit_do_imm32(compiler, (!compiler->mode32) ? REX_W : 0, (_op_eax_imm_), immw))
+
+#else
+
+#define BINARY_IMM(_op_imm_, _op_mr_, immw, arg, argw) \
+	code = emit_x86_instruction(compiler, 1 | EX86_BIN_INS, SLJIT_IMM, immw, arg, argw); \
+	FAIL_IF(!code); \
+	*(code + 1) |= (_op_imm_);
+
+#define BINARY_EAX_IMM(_op_eax_imm_, immw) \
+	FAIL_IF(emit_do_imm(compiler, (_op_eax_imm_), immw))
+
+#endif
+
+static int emit_cum_binary(struct sljit_compiler *compiler,
+	sljit_ub op_rm, sljit_ub op_mr, sljit_ub op_imm, sljit_ub op_eax_imm,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	sljit_ub* code;
+
+	if (dst == SLJIT_UNUSED) {
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+		if (src2 & SLJIT_IMM) {
+			BINARY_IMM(op_imm, op_mr, src2w, TMP_REGISTER, 0);
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	if (dst == src1 && dstw == src1w) {
+		if (src2 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+			if ((dst == SLJIT_TEMPORARY_REG1) && (src2w > 127 || src2w < -128) && (compiler->mode32 || IS_HALFWORD(src2w))) {
+#else
+			if ((dst == SLJIT_TEMPORARY_REG1) && (src2w > 127 || src2w < -128)) {
+#endif
+				BINARY_EAX_IMM(op_eax_imm, src2w);
+			}
+			else {
+				BINARY_IMM(op_imm, op_mr, src2w, dst, dstw);
+			}
+		}
+		else if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+			code = emit_x86_instruction(compiler, 1, dst, dstw, src2, src2w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+		else if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REGISTER) {
+			/* Special exception for sljit_emit_cond_value. */
+			code = emit_x86_instruction(compiler, 1, src2, src2w, dst, dstw);
+			FAIL_IF(!code);
+			*code = op_mr;
+		}
+		else {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src2, src2w);
+			code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, dst, dstw);
+			FAIL_IF(!code);
+			*code = op_mr;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	/* Only for cumulative operations. */
+	if (dst == src2 && dstw == src2w) {
+		if (src1 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+			if ((dst == SLJIT_TEMPORARY_REG1) && (src1w > 127 || src1w < -128) && (compiler->mode32 || IS_HALFWORD(src1w))) {
+#else
+			if ((dst == SLJIT_TEMPORARY_REG1) && (src1w > 127 || src1w < -128)) {
+#endif
+				BINARY_EAX_IMM(op_eax_imm, src1w);
+			}
+			else {
+				BINARY_IMM(op_imm, op_mr, src1w, dst, dstw);
+			}
+		}
+		else if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+			code = emit_x86_instruction(compiler, 1, dst, dstw, src1, src1w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+		else if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= SLJIT_NO_REGISTERS) {
+			code = emit_x86_instruction(compiler, 1, src1, src1w, dst, dstw);
+			FAIL_IF(!code);
+			*code = op_mr;
+		}
+		else {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+			code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, dst, dstw);
+			FAIL_IF(!code);
+			*code = op_mr;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	/* General version. */
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+		EMIT_MOV(compiler, dst, 0, src1, src1w);
+		if (src2 & SLJIT_IMM) {
+			BINARY_IMM(op_imm, op_mr, src2w, dst, 0);
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, dst, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+	}
+	else {
+		/* This version requires less memory writing. */
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+		if (src2 & SLJIT_IMM) {
+			BINARY_IMM(op_imm, op_mr, src2w, TMP_REGISTER, 0);
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+		EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+static int emit_non_cum_binary(struct sljit_compiler *compiler,
+	sljit_ub op_rm, sljit_ub op_mr, sljit_ub op_imm, sljit_ub op_eax_imm,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	sljit_ub* code;
+
+	if (dst == SLJIT_UNUSED) {
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+		if (src2 & SLJIT_IMM) {
+			BINARY_IMM(op_imm, op_mr, src2w, TMP_REGISTER, 0);
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	if (dst == src1 && dstw == src1w) {
+		if (src2 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+			if ((dst == SLJIT_TEMPORARY_REG1) && (src2w > 127 || src2w < -128) && (compiler->mode32 || IS_HALFWORD(src2w))) {
+#else
+			if ((dst == SLJIT_TEMPORARY_REG1) && (src2w > 127 || src2w < -128)) {
+#endif
+				BINARY_EAX_IMM(op_eax_imm, src2w);
+			}
+			else {
+				BINARY_IMM(op_imm, op_mr, src2w, dst, dstw);
+			}
+		}
+		else if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+			code = emit_x86_instruction(compiler, 1, dst, dstw, src2, src2w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+		else if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS) {
+			code = emit_x86_instruction(compiler, 1, src2, src2w, dst, dstw);
+			FAIL_IF(!code);
+			*code = op_mr;
+		}
+		else {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src2, src2w);
+			code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, dst, dstw);
+			FAIL_IF(!code);
+			*code = op_mr;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	/* General version. */
+	if ((dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) && dst != src2) {
+		EMIT_MOV(compiler, dst, 0, src1, src1w);
+		if (src2 & SLJIT_IMM) {
+			BINARY_IMM(op_imm, op_mr, src2w, dst, 0);
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, dst, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+	}
+	else {
+		/* This version requires less memory writing. */
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+		if (src2 & SLJIT_IMM) {
+			BINARY_IMM(op_imm, op_mr, src2w, TMP_REGISTER, 0);
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = op_rm;
+		}
+		EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+static int emit_mul(struct sljit_compiler *compiler,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	sljit_ub* code;
+	int dst_r;
+
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REGISTER;
+
+	/* Register destination. */
+	if (dst_r == src1 && !(src2 & SLJIT_IMM)) {
+		code = emit_x86_instruction(compiler, 2, dst_r, 0, src2, src2w);
+		FAIL_IF(!code);
+		*code++ = 0x0f;
+		*code = 0xaf;
+	}
+	else if (dst_r == src2 && !(src1 & SLJIT_IMM)) {
+		code = emit_x86_instruction(compiler, 2, dst_r, 0, src1, src1w);
+		FAIL_IF(!code);
+		*code++ = 0x0f;
+		*code = 0xaf;
+	}
+	else if (src1 & SLJIT_IMM) {
+		if (src2 & SLJIT_IMM) {
+			EMIT_MOV(compiler, dst_r, 0, SLJIT_IMM, src2w);
+			src2 = dst_r;
+			src2w = 0;
+		}
+
+		if (src1w <= 127 && src1w >= -128) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = 0x6b;
+			code = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+			FAIL_IF(!code);
+			INC_CSIZE(1);
+			*code = (sljit_b)src1w;
+		}
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		else {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = 0x69;
+			code = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+			FAIL_IF(!code);
+			INC_CSIZE(4);
+			*(sljit_w*)code = src1w;
+		}
+#else
+		else if (IS_HALFWORD(src1w)) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = 0x69;
+			code = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+			FAIL_IF(!code);
+			INC_CSIZE(4);
+			*(sljit_hw*)code = (sljit_hw)src1w;
+		}
+		else {
+			EMIT_MOV(compiler, TMP_REG2, 0, SLJIT_IMM, src1w);
+			if (dst_r != src2)
+				EMIT_MOV(compiler, dst_r, 0, src2, src2w);
+			code = emit_x86_instruction(compiler, 2, dst_r, 0, TMP_REG2, 0);
+			FAIL_IF(!code);
+			*code++ = 0x0f;
+			*code = 0xaf;
+		}
+#endif
+	}
+	else if (src2 & SLJIT_IMM) {
+		/* Note: src1 is NOT immediate. */
+
+		if (src2w <= 127 && src2w >= -128) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, src1, src1w);
+			FAIL_IF(!code);
+			*code = 0x6b;
+			code = (sljit_ub*)ensure_buf(compiler, 1 + 1);
+			FAIL_IF(!code);
+			INC_CSIZE(1);
+			*code = (sljit_b)src2w;
+		}
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		else {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, src1, src1w);
+			FAIL_IF(!code);
+			*code = 0x69;
+			code = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+			FAIL_IF(!code);
+			INC_CSIZE(4);
+			*(sljit_w*)code = src2w;
+		}
+#else
+		else if (IS_HALFWORD(src2w)) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, src1, src1w);
+			FAIL_IF(!code);
+			*code = 0x69;
+			code = (sljit_ub*)ensure_buf(compiler, 1 + 4);
+			FAIL_IF(!code);
+			INC_CSIZE(4);
+			*(sljit_hw*)code = (sljit_hw)src2w;
+		}
+		else {
+			EMIT_MOV(compiler, TMP_REG2, 0, SLJIT_IMM, src1w);
+			if (dst_r != src1)
+				EMIT_MOV(compiler, dst_r, 0, src1, src1w);
+			code = emit_x86_instruction(compiler, 2, dst_r, 0, TMP_REG2, 0);
+			FAIL_IF(!code);
+			*code++ = 0x0f;
+			*code = 0xaf;
+		}
+#endif
+	}
+	else {
+		/* Neither argument is immediate. */
+		if (ADDRESSING_DEPENDS_ON(src2, dst_r))
+			dst_r = TMP_REGISTER;
+		EMIT_MOV(compiler, dst_r, 0, src1, src1w);
+		code = emit_x86_instruction(compiler, 2, dst_r, 0, src2, src2w);
+		FAIL_IF(!code);
+		*code++ = 0x0f;
+		*code = 0xaf;
+	}
+
+	if (dst_r == TMP_REGISTER)
+		EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0);
+
+	return SLJIT_SUCCESS;
+}
+
+static int emit_lea_binary(struct sljit_compiler *compiler,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	sljit_ub* code;
+	int dst_r, done = 0;
+
+	/* These cases better be left to handled by normal way. */
+	if (dst == src1 && dstw == src1w)
+		return SLJIT_ERR_UNSUPPORTED;
+	if (dst == src2 && dstw == src2w)
+		return SLJIT_ERR_UNSUPPORTED;
+
+	dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REGISTER;
+
+	if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= SLJIT_NO_REGISTERS) {
+		if ((src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS) || src2 == TMP_REGISTER) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM2(src1, src2), 0);
+			FAIL_IF(!code);
+			*code = 0x8d;
+			done = 1;
+		}
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		if ((src2 & SLJIT_IMM) && (compiler->mode32 || IS_HALFWORD(src2w))) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM1(src1), (int)src2w);
+#else
+		if (src2 & SLJIT_IMM) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM1(src1), src2w);
+#endif
+			FAIL_IF(!code);
+			*code = 0x8d;
+			done = 1;
+		}
+	}
+	else if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		if ((src1 & SLJIT_IMM) && (compiler->mode32 || IS_HALFWORD(src1w))) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM1(src2), (int)src1w);
+#else
+		if (src1 & SLJIT_IMM) {
+			code = emit_x86_instruction(compiler, 1, dst_r, 0, SLJIT_MEM1(src2), src1w);
+#endif
+			FAIL_IF(!code);
+			*code = 0x8d;
+			done = 1;
+		}
+	}
+
+	if (done) {
+		if (dst_r == TMP_REGISTER)
+			return emit_mov(compiler, dst, dstw, TMP_REGISTER, 0);
+		return SLJIT_SUCCESS;
+	}
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+static int emit_cmp_binary(struct sljit_compiler *compiler,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	sljit_ub* code;
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	if (src1 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src2w > 127 || src2w < -128) && (compiler->mode32 || IS_HALFWORD(src2w))) {
+#else
+	if (src1 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src2w > 127 || src2w < -128)) {
+#endif
+		BINARY_EAX_IMM(0x3d, src2w);
+		return SLJIT_SUCCESS;
+	}
+
+	if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= SLJIT_NO_REGISTERS) {
+		if (src2 & SLJIT_IMM) {
+			BINARY_IMM(0x7 << 3, 0x39, src2w, src1, 0);
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, src1, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = 0x3b;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS && !(src1 & SLJIT_IMM)) {
+		code = emit_x86_instruction(compiler, 1, src2, 0, src1, src1w);
+		FAIL_IF(!code);
+		*code = 0x39;
+		return SLJIT_SUCCESS;
+	}
+
+	if (src2 & SLJIT_IMM) {
+		if (src1 & SLJIT_IMM) {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+			src1 = TMP_REGISTER;
+			src1w = 0;
+		}
+		BINARY_IMM(0x7 << 3, 0x39, src2w, src1, src1w);
+	}
+	else {
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+		code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w);
+		FAIL_IF(!code);
+		*code = 0x3b;
+	}
+	return SLJIT_SUCCESS;
+}
+
+static int emit_test_binary(struct sljit_compiler *compiler,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	sljit_ub* code;
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	if (src1 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src2w > 127 || src2w < -128) && (compiler->mode32 || IS_HALFWORD(src2w))) {
+#else
+	if (src1 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src2w > 127 || src2w < -128)) {
+#endif
+		BINARY_EAX_IMM(0xa9, src2w);
+		return SLJIT_SUCCESS;
+	}
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	if (src2 == SLJIT_TEMPORARY_REG1 && (src2 & SLJIT_IMM) && (src1w > 127 || src1w < -128) && (compiler->mode32 || IS_HALFWORD(src1w))) {
+#else
+	if (src2 == SLJIT_TEMPORARY_REG1 && (src1 & SLJIT_IMM) && (src1w > 127 || src1w < -128)) {
+#endif
+		BINARY_EAX_IMM(0xa9, src1w);
+		return SLJIT_SUCCESS;
+	}
+
+	if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= SLJIT_NO_REGISTERS) {
+		if (src2 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+			if (IS_HALFWORD(src2w) || compiler->mode32) {
+				code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src2w, src1, 0);
+				FAIL_IF(!code);
+				*code = 0xf7;
+			}
+			else {
+				FAIL_IF(emit_load_imm64(compiler, TMP_REG2, src2w));
+				code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, src1, 0);
+				FAIL_IF(!code);
+				*code = 0x85;
+			}
+#else
+			code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src2w, src1, 0);
+			FAIL_IF(!code);
+			*code = 0xf7;
+#endif
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, src1, 0, src2, src2w);
+			FAIL_IF(!code);
+			*code = 0x85;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= SLJIT_NO_REGISTERS) {
+		if (src1 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+			if (IS_HALFWORD(src1w) || compiler->mode32) {
+				code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src1w, src2, 0);
+				FAIL_IF(!code);
+				*code = 0xf7;
+			}
+			else {
+				FAIL_IF(emit_load_imm64(compiler, TMP_REG2, src1w));
+				code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, src2, 0);
+				FAIL_IF(!code);
+				*code = 0x85;
+			}
+#else
+			code = emit_x86_instruction(compiler, 1, src1, src1w, src2, 0);
+			FAIL_IF(!code);
+			*code = 0xf7;
+#endif
+		}
+		else {
+			code = emit_x86_instruction(compiler, 1, src2, 0, src1, src1w);
+			FAIL_IF(!code);
+			*code = 0x85;
+		}
+		return SLJIT_SUCCESS;
+	}
+
+	EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+	if (src2 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		if (IS_HALFWORD(src2w) || compiler->mode32) {
+			code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src2w, TMP_REGISTER, 0);
+			FAIL_IF(!code);
+			*code = 0xf7;
+		}
+		else {
+			FAIL_IF(emit_load_imm64(compiler, TMP_REG2, src2w));
+			code = emit_x86_instruction(compiler, 1, TMP_REG2, 0, TMP_REGISTER, 0);
+			FAIL_IF(!code);
+			*code = 0x85;
+		}
+#else
+		code = emit_x86_instruction(compiler, 1, SLJIT_IMM, src2w, TMP_REGISTER, 0);
+		FAIL_IF(!code);
+		*code = 0xf7;
+#endif
+	}
+	else {
+		code = emit_x86_instruction(compiler, 1, TMP_REGISTER, 0, src2, src2w);
+		FAIL_IF(!code);
+		*code = 0x85;
+	}
+	return SLJIT_SUCCESS;
+}
+
+static int emit_shift(struct sljit_compiler *compiler,
+	sljit_ub mode,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	sljit_ub* code;
+
+	if ((src2 & SLJIT_IMM) || (src2 == SLJIT_PREF_SHIFT_REG)) {
+		if (dst == src1 && dstw == src1w) {
+			code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, src2, src2w, dst, dstw);
+			FAIL_IF(!code);
+			*code |= mode;
+			return SLJIT_SUCCESS;
+		}
+		if (dst == SLJIT_UNUSED) {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+			code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, src2, src2w, TMP_REGISTER, 0);
+			FAIL_IF(!code);
+			*code |= mode;
+			return SLJIT_SUCCESS;
+		}
+		if (dst == SLJIT_PREF_SHIFT_REG && src2 == SLJIT_PREF_SHIFT_REG) {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+			code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0);
+			FAIL_IF(!code);
+			*code |= mode;
+			EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0);
+			return SLJIT_SUCCESS;
+		}
+		if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
+			EMIT_MOV(compiler, dst, 0, src1, src1w);
+			code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, src2, src2w, dst, 0);
+			FAIL_IF(!code);
+			*code |= mode;
+			return SLJIT_SUCCESS;
+		}
+
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+		code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, src2, src2w, TMP_REGISTER, 0);
+		FAIL_IF(!code);
+		*code |= mode;
+		EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0);
+		return SLJIT_SUCCESS;
+	}
+
+	if (dst == SLJIT_PREF_SHIFT_REG) {
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+		EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, src2, src2w);
+		code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0);
+		FAIL_IF(!code);
+		*code |= mode;
+		EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0);
+	}
+	else if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS && dst != src2 && !ADDRESSING_DEPENDS_ON(src2, dst)) {
+		if (src1 != dst)
+			EMIT_MOV(compiler, dst, 0, src1, src1w);
+		EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_PREF_SHIFT_REG, 0);
+		EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, src2, src2w);
+		code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_PREF_SHIFT_REG, 0, dst, 0);
+		FAIL_IF(!code);
+		*code |= mode;
+		EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0);
+	}
+	else {
+		/* This case is really difficult, since ecx itself may used for
+		   addressing, and we must ensure to work even in that case. */
+		EMIT_MOV(compiler, TMP_REGISTER, 0, src1, src1w);
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		EMIT_MOV(compiler, TMP_REG2, 0, SLJIT_PREF_SHIFT_REG, 0);
+#else
+		/* [esp+0] contains the flags. */
+		EMIT_MOV(compiler, SLJIT_MEM1(SLJIT_LOCALS_REG), sizeof(sljit_w), SLJIT_PREF_SHIFT_REG, 0);
+#endif
+		EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, src2, src2w);
+		code = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_PREF_SHIFT_REG, 0, TMP_REGISTER, 0);
+		FAIL_IF(!code);
+		*code |= mode;
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, TMP_REG2, 0);
+#else
+		EMIT_MOV(compiler, SLJIT_PREF_SHIFT_REG, 0, SLJIT_MEM1(SLJIT_LOCALS_REG), sizeof(sljit_w));
+#endif
+		EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+static int emit_shift_with_flags(struct sljit_compiler *compiler,
+	sljit_ub mode, int set_flags,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	/* The CPU does not set flags if the shift count is 0. */
+	if (src2 & SLJIT_IMM) {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		if ((src2w & 0x3f) != 0 || (compiler->mode32 && (src2w & 0x1f) != 0))
+			return emit_shift(compiler, mode, dst, dstw, src1, src1w, src2, src2w);
+#else
+		if ((src2w & 0x1f) != 0)
+			return emit_shift(compiler, mode, dst, dstw, src1, src1w, src2, src2w);
+#endif
+		if (!set_flags)
+			return emit_mov(compiler, dst, dstw, src1, src1w);
+		/* OR dst, src, 0 */
+		return emit_cum_binary(compiler, 0x0b, 0x09, 0x1 << 3, 0x0d,
+			dst, dstw, src1, src1w, SLJIT_IMM, 0);
+	}
+
+	if (!set_flags)
+		return emit_shift(compiler, mode, dst, dstw, src1, src1w, src2, src2w);
+
+	if (!(dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS))
+		FAIL_IF(emit_cmp_binary(compiler, src1, src1w, SLJIT_IMM, 0));
+
+	FAIL_IF(emit_shift(compiler,mode, dst, dstw, src1, src1w, src2, src2w));
+
+	if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
+		return emit_cmp_binary(compiler, dst, dstw, SLJIT_IMM, 0);
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	CHECK_ERROR();
+	check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	ADJUST_LOCAL_OFFSET(src1, src1w);
+	ADJUST_LOCAL_OFFSET(src2, src2w);
+
+	CHECK_EXTRA_REGS(dst, dstw, (void)0);
+	CHECK_EXTRA_REGS(src1, src1w, (void)0);
+	CHECK_EXTRA_REGS(src2, src2w, (void)0);
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	compiler->mode32 = op & SLJIT_INT_OP;
+#endif
+
+	if (GET_OPCODE(op) >= SLJIT_MUL) {
+		if (SLJIT_UNLIKELY(GET_FLAGS(op)))
+			compiler->flags_saved = 0;
+		else if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved)
+			FAIL_IF(emit_save_flags(compiler));
+	}
+
+	switch (GET_OPCODE(op)) {
+	case SLJIT_ADD:
+		if (!GET_FLAGS(op)) {
+			if (emit_lea_binary(compiler, dst, dstw, src1, src1w, src2, src2w) != SLJIT_ERR_UNSUPPORTED)
+				return compiler->error;
+		}
+		else
+			compiler->flags_saved = 0;
+		if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved)
+			FAIL_IF(emit_save_flags(compiler));
+		return emit_cum_binary(compiler, 0x03, 0x01, 0x0 << 3, 0x05,
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_ADDC:
+		if (SLJIT_UNLIKELY(compiler->flags_saved)) /* C flag must be restored. */
+			FAIL_IF(emit_restore_flags(compiler, 1));
+		else if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS))
+			FAIL_IF(emit_save_flags(compiler));
+		if (SLJIT_UNLIKELY(GET_FLAGS(op)))
+			compiler->flags_saved = 0;
+		return emit_cum_binary(compiler, 0x13, 0x11, 0x2 << 3, 0x15,
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_SUB:
+		if (!GET_FLAGS(op)) {
+			if ((src2 & SLJIT_IMM) && emit_lea_binary(compiler, dst, dstw, src1, src1w, SLJIT_IMM, -src2w) != SLJIT_ERR_UNSUPPORTED)
+				return compiler->error;
+		}
+		else
+			compiler->flags_saved = 0;
+		if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS) && !compiler->flags_saved)
+			FAIL_IF(emit_save_flags(compiler));
+		if (dst == SLJIT_UNUSED)
+			return emit_cmp_binary(compiler, src1, src1w, src2, src2w);
+		return emit_non_cum_binary(compiler, 0x2b, 0x29, 0x5 << 3, 0x2d,
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_SUBC:
+		if (SLJIT_UNLIKELY(compiler->flags_saved)) /* C flag must be restored. */
+			FAIL_IF(emit_restore_flags(compiler, 1));
+		else if (SLJIT_UNLIKELY(op & SLJIT_KEEP_FLAGS))
+			FAIL_IF(emit_save_flags(compiler));
+		if (SLJIT_UNLIKELY(GET_FLAGS(op)))
+			compiler->flags_saved = 0;
+		return emit_non_cum_binary(compiler, 0x1b, 0x19, 0x3 << 3, 0x1d,
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_MUL:
+		return emit_mul(compiler, dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_AND:
+		if (dst == SLJIT_UNUSED)
+			return emit_test_binary(compiler, src1, src1w, src2, src2w);
+		return emit_cum_binary(compiler, 0x23, 0x21, 0x4 << 3, 0x25,
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_OR:
+		return emit_cum_binary(compiler, 0x0b, 0x09, 0x1 << 3, 0x0d,
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_XOR:
+		return emit_cum_binary(compiler, 0x33, 0x31, 0x6 << 3, 0x35,
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_SHL:
+		return emit_shift_with_flags(compiler, 0x4 << 3, GET_FLAGS(op),
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_LSHR:
+		return emit_shift_with_flags(compiler, 0x5 << 3, GET_FLAGS(op),
+			dst, dstw, src1, src1w, src2, src2w);
+	case SLJIT_ASHR:
+		return emit_shift_with_flags(compiler, 0x7 << 3, GET_FLAGS(op),
+			dst, dstw, src1, src1w, src2, src2w);
+	}
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
+{
+	check_sljit_get_register_index(reg);
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	if (reg == SLJIT_TEMPORARY_EREG1 || reg == SLJIT_TEMPORARY_EREG2
+			|| reg == SLJIT_SAVED_EREG1 || reg == SLJIT_SAVED_EREG2)
+		return -1;
+#endif
+	return reg_map[reg];
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
+	void *instruction, int size)
+{
+	sljit_ub *buf;
+
+	CHECK_ERROR();
+	check_sljit_emit_op_custom(compiler, instruction, size);
+	SLJIT_ASSERT(size > 0 && size < 16);
+
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + size);
+	FAIL_IF(!buf);
+	INC_SIZE(size);
+	SLJIT_MEMMOVE(buf, instruction, size);
+	return SLJIT_SUCCESS;
+}
+
+/* --------------------------------------------------------------------- */
+/*  Floating point operators                                             */
+/* --------------------------------------------------------------------- */
+
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+
+/* Alignment + 2 * 16 bytes. */
+static sljit_i sse2_data[3 + 4 + 4];
+static sljit_i *sse2_buffer;
+
+static void init_compiler()
+{
+	sse2_buffer = (sljit_i*)(((sljit_uw)sse2_data + 15) & ~0xf);
+	sse2_buffer[0] = 0;
+	sse2_buffer[1] = 0x80000000;
+	sse2_buffer[4] = 0xffffffff;
+	sse2_buffer[5] = 0x7fffffff;
+}
+
+#endif
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
+{
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+#if (defined SLJIT_DETECT_SSE2 && SLJIT_DETECT_SSE2)
+	static int sse2_available = -1;
+	int features;
+
+	if (sse2_available != -1)
+		return sse2_available;
+
+#ifdef __GNUC__
+	/* AT&T syntax. */
+	asm (
+		"pushl %%ebx\n"
+		"movl $0x1, %%eax\n"
+		"cpuid\n"
+		"popl %%ebx\n"
+		"movl %%edx, %0\n"
+		: "=g" (features)
+		:
+		: "%eax", "%ecx", "%edx"
+	);
+#elif defined(_MSC_VER) || defined(__BORLANDC__)
+	/* Intel syntax. */
+	__asm {
+		mov eax, 1
+		push ebx
+		cpuid
+		pop ebx
+		mov features, edx
+	}
+#else
+	#error "SLJIT_DETECT_SSE2 is not implemented for this C compiler"
+#endif
+	sse2_available = (features >> 26) & 0x1;
+	return sse2_available;
+#else
+	return 1;
+#endif
+#else
+	return 0;
+#endif
+}
+
+#if (defined SLJIT_SSE2 && SLJIT_SSE2)
+
+static int emit_sse2(struct sljit_compiler *compiler, sljit_ub opcode,
+	int xmm1, int xmm2, sljit_w xmm2w)
+{
+	sljit_ub *buf;
+
+	buf = emit_x86_instruction(compiler, 2 | EX86_PREF_F2 | EX86_SSE2, xmm1, 0, xmm2, xmm2w);
+	FAIL_IF(!buf);
+	*buf++ = 0x0f;
+	*buf = opcode;
+	return SLJIT_SUCCESS;
+}
+
+static int emit_sse2_logic(struct sljit_compiler *compiler, sljit_ub opcode,
+	int xmm1, int xmm2, sljit_w xmm2w)
+{
+	sljit_ub *buf;
+
+	buf = emit_x86_instruction(compiler, 2 | EX86_PREF_66 | EX86_SSE2, xmm1, 0, xmm2, xmm2w);
+	FAIL_IF(!buf);
+	*buf++ = 0x0f;
+	*buf = opcode;
+	return SLJIT_SUCCESS;
+}
+
+static SLJIT_INLINE int emit_sse2_load(struct sljit_compiler *compiler,
+	int dst, int src, sljit_w srcw)
+{
+	return emit_sse2(compiler, 0x10, dst, src, srcw);
+}
+
+static SLJIT_INLINE int emit_sse2_store(struct sljit_compiler *compiler,
+	int dst, sljit_w dstw, int src)
+{
+	return emit_sse2(compiler, 0x11, src, dst, dstw);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	int dst_r;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	compiler->mode32 = 1;
+#endif
+
+	if (GET_OPCODE(op) == SLJIT_FCMP) {
+		compiler->flags_saved = 0;
+		if (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4)
+			dst_r = dst;
+		else {
+			dst_r = TMP_FREG;
+			FAIL_IF(emit_sse2_load(compiler, dst_r, dst, dstw));
+		}
+		return emit_sse2_logic(compiler, 0x2e, dst_r, src, srcw);
+	}
+
+	if (op == SLJIT_FMOV) {
+		if (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4)
+			return emit_sse2_load(compiler, dst, src, srcw);
+		if (src >= SLJIT_FLOAT_REG1 && src <= SLJIT_FLOAT_REG4)
+			return emit_sse2_store(compiler, dst, dstw, src);
+		FAIL_IF(emit_sse2_load(compiler, TMP_FREG, src, srcw));
+		return emit_sse2_store(compiler, dst, dstw, TMP_FREG);
+	}
+
+	if (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) {
+		dst_r = dst;
+		if (dst != src)
+			FAIL_IF(emit_sse2_load(compiler, dst_r, src, srcw));
+	}
+	else {
+		dst_r = TMP_FREG;
+		FAIL_IF(emit_sse2_load(compiler, dst_r, src, srcw));
+	}
+
+	switch (op) {
+	case SLJIT_FNEG:
+		FAIL_IF(emit_sse2_logic(compiler, 0x57, dst_r, SLJIT_MEM0(), (sljit_w)sse2_buffer));
+		break;
+
+	case SLJIT_FABS:
+		FAIL_IF(emit_sse2_logic(compiler, 0x54, dst_r, SLJIT_MEM0(), (sljit_w)(sse2_buffer + 4)));
+		break;
+	}
+
+	if (dst_r == TMP_FREG)
+		return emit_sse2_store(compiler, dst, dstw, TMP_FREG);
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	int dst_r;
+
+	CHECK_ERROR();
+	check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	compiler->mode32 = 1;
+#endif
+
+	if (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) {
+		dst_r = dst;
+		if (dst == src1)
+			; /* Do nothing here. */
+		else if (dst == src2 && (op == SLJIT_FADD || op == SLJIT_FMUL)) {
+			/* Swap arguments. */
+			src2 = src1;
+			src2w = src1w;
+		}
+		else if (dst != src2)
+			FAIL_IF(emit_sse2_load(compiler, dst_r, src1, src1w));
+		else {
+			dst_r = TMP_FREG;
+			FAIL_IF(emit_sse2_load(compiler, TMP_FREG, src1, src1w));
+		}
+	}
+	else {
+		dst_r = TMP_FREG;
+		FAIL_IF(emit_sse2_load(compiler, TMP_FREG, src1, src1w));
+	}
+
+	switch (op) {
+	case SLJIT_FADD:
+		FAIL_IF(emit_sse2(compiler, 0x58, dst_r, src2, src2w));
+		break;
+
+	case SLJIT_FSUB:
+		FAIL_IF(emit_sse2(compiler, 0x5c, dst_r, src2, src2w));
+		break;
+
+	case SLJIT_FMUL:
+		FAIL_IF(emit_sse2(compiler, 0x59, dst_r, src2, src2w));
+		break;
+
+	case SLJIT_FDIV:
+		FAIL_IF(emit_sse2(compiler, 0x5e, dst_r, src2, src2w));
+		break;
+	}
+
+	if (dst_r == TMP_FREG)
+		return emit_sse2_store(compiler, dst, dstw, TMP_FREG);
+	return SLJIT_SUCCESS;
+}
+
+#else
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src, sljit_w srcw)
+{
+	CHECK_ERROR();
+	/* Should cause an assertion fail. */
+	check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
+	compiler->error = SLJIT_ERR_UNSUPPORTED;
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
+	int dst, sljit_w dstw,
+	int src1, sljit_w src1w,
+	int src2, sljit_w src2w)
+{
+	CHECK_ERROR();
+	/* Should cause an assertion fail. */
+	check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
+	compiler->error = SLJIT_ERR_UNSUPPORTED;
+	return SLJIT_ERR_UNSUPPORTED;
+}
+
+#endif
+
+/* --------------------------------------------------------------------- */
+/*  Conditional instructions                                             */
+/* --------------------------------------------------------------------- */
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
+{
+	sljit_ub *buf;
+	struct sljit_label *label;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_label(compiler);
+
+	/* We should restore the flags before the label,
+	   since other taken jumps has their own flags as well. */
+	if (SLJIT_UNLIKELY(compiler->flags_saved))
+		PTR_FAIL_IF(emit_restore_flags(compiler, 0));
+
+	if (compiler->last_label && compiler->last_label->size == compiler->size)
+		return compiler->last_label;
+
+	label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
+	PTR_FAIL_IF(!label);
+	set_label(label, compiler);
+
+	buf = (sljit_ub*)ensure_buf(compiler, 2);
+	PTR_FAIL_IF(!buf);
+
+	*buf++ = 0;
+	*buf++ = 0;
+
+	return label;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
+{
+	sljit_ub *buf;
+	struct sljit_jump *jump;
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_jump(compiler, type);
+
+	if (SLJIT_UNLIKELY(compiler->flags_saved)) {
+		if ((type & 0xff) <= SLJIT_JUMP)
+			PTR_FAIL_IF(emit_restore_flags(compiler, 0));
+		compiler->flags_saved = 0;
+	}
+
+	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+	PTR_FAIL_IF_NULL(jump);
+	set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
+	type &= 0xff;
+
+	if (type >= SLJIT_CALL1)
+		PTR_FAIL_IF(call_with_args(compiler, type));
+
+	/* Worst case size. */
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	compiler->size += (type >= SLJIT_JUMP) ? 5 : 6;
+#else
+	compiler->size += (type >= SLJIT_JUMP) ? (10 + 3) : (2 + 10 + 3);
+#endif
+
+	buf = (sljit_ub*)ensure_buf(compiler, 2);
+	PTR_FAIL_IF_NULL(buf);
+
+	*buf++ = 0;
+	*buf++ = type + 4;
+	return jump;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
+{
+	sljit_ub *code;
+	struct sljit_jump *jump;
+
+	CHECK_ERROR();
+	check_sljit_emit_ijump(compiler, type, src, srcw);
+	ADJUST_LOCAL_OFFSET(src, srcw);
+
+	CHECK_EXTRA_REGS(src, srcw, (void)0);
+
+	if (SLJIT_UNLIKELY(compiler->flags_saved)) {
+		if (type <= SLJIT_JUMP)
+			FAIL_IF(emit_restore_flags(compiler, 0));
+		compiler->flags_saved = 0;
+	}
+
+	if (type >= SLJIT_CALL1) {
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+#if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
+		if (src == SLJIT_TEMPORARY_REG3) {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src, 0);
+			src = TMP_REGISTER;
+		}
+		if (src == SLJIT_MEM1(SLJIT_LOCALS_REG) && type >= SLJIT_CALL3)
+			srcw += sizeof(sljit_w);
+#else
+		if (src == SLJIT_MEM1(SLJIT_LOCALS_REG))
+			srcw += sizeof(sljit_w) * (type - SLJIT_CALL0);
+#endif
+#endif
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && defined(_WIN64)
+		if (src == SLJIT_TEMPORARY_REG3) {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, src, 0);
+			src = TMP_REGISTER;
+		}
+#endif
+		FAIL_IF(call_with_args(compiler, type));
+	}
+
+	if (src == SLJIT_IMM) {
+		jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
+		FAIL_IF_NULL(jump);
+		set_jump(jump, compiler, JUMP_ADDR);
+		jump->u.target = srcw;
+
+		/* Worst case size. */
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+		compiler->size += 5;
+#else
+		compiler->size += 10 + 3;
+#endif
+
+		code = (sljit_ub*)ensure_buf(compiler, 2);
+		FAIL_IF_NULL(code);
+
+		*code++ = 0;
+		*code++ = type + 4;
+	}
+	else {
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+		/* REX_W is not necessary (src is not immediate). */
+		compiler->mode32 = 1;
+#endif
+		code = emit_x86_instruction(compiler, 1, 0, 0, src, srcw);
+		FAIL_IF(!code);
+		*code++ = 0xff;
+		*code |= (type >= SLJIT_FAST_CALL) ? (2 << 3) : (4 << 3);
+	}
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
+{
+	sljit_ub *buf;
+	sljit_ub cond_set = 0;
+	int dst_save = dst;
+	sljit_w dstw_save = dstw;
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	int reg;
+#endif
+
+	CHECK_ERROR();
+	check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
+
+	if (dst == SLJIT_UNUSED)
+		return SLJIT_SUCCESS;
+
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+	CHECK_EXTRA_REGS(dst, dstw, (void)0);
+	if (SLJIT_UNLIKELY(compiler->flags_saved))
+		FAIL_IF(emit_restore_flags(compiler, op & SLJIT_KEEP_FLAGS));
+
+	switch (type) {
+	case SLJIT_C_EQUAL:
+	case SLJIT_C_FLOAT_EQUAL:
+		cond_set = 0x94;
+		break;
+
+	case SLJIT_C_NOT_EQUAL:
+	case SLJIT_C_FLOAT_NOT_EQUAL:
+		cond_set = 0x95;
+		break;
+
+	case SLJIT_C_LESS:
+	case SLJIT_C_FLOAT_LESS:
+		cond_set = 0x92;
+		break;
+
+	case SLJIT_C_GREATER_EQUAL:
+	case SLJIT_C_FLOAT_GREATER_EQUAL:
+		cond_set = 0x93;
+		break;
+
+	case SLJIT_C_GREATER:
+	case SLJIT_C_FLOAT_GREATER:
+		cond_set = 0x97;
+		break;
+
+	case SLJIT_C_LESS_EQUAL:
+	case SLJIT_C_FLOAT_LESS_EQUAL:
+		cond_set = 0x96;
+		break;
+
+	case SLJIT_C_SIG_LESS:
+		cond_set = 0x9c;
+		break;
+
+	case SLJIT_C_SIG_GREATER_EQUAL:
+		cond_set = 0x9d;
+		break;
+
+	case SLJIT_C_SIG_GREATER:
+		cond_set = 0x9f;
+		break;
+
+	case SLJIT_C_SIG_LESS_EQUAL:
+		cond_set = 0x9e;
+		break;
+
+	case SLJIT_C_OVERFLOW:
+	case SLJIT_C_MUL_OVERFLOW:
+		cond_set = 0x90;
+		break;
+
+	case SLJIT_C_NOT_OVERFLOW:
+	case SLJIT_C_MUL_NOT_OVERFLOW:
+		cond_set = 0x91;
+		break;
+
+	case SLJIT_C_FLOAT_NAN:
+		cond_set = 0x9a;
+		break;
+
+	case SLJIT_C_FLOAT_NOT_NAN:
+		cond_set = 0x9b;
+		break;
+	}
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	reg = (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REGISTER;
+
+	buf = (sljit_ub*)ensure_buf(compiler, 1 + 4 + 4);
+	FAIL_IF(!buf);
+	INC_SIZE(4 + 4);
+	/* Set low register to conditional flag. */
+	*buf++ = (reg_map[reg] <= 7) ? 0x40 : REX_B;
+	*buf++ = 0x0f;
+	*buf++ = cond_set;
+	*buf++ = 0xC0 | reg_lmap[reg];
+	*buf++ = REX_W | (reg_map[reg] <= 7 ? 0 : (REX_B | REX_R));
+	*buf++ = 0x0f;
+	*buf++ = 0xb6;
+	*buf = 0xC0 | (reg_lmap[reg] << 3) | reg_lmap[reg];
+
+	if (reg == TMP_REGISTER) {
+		if (op == SLJIT_MOV) {
+			compiler->mode32 = 0;
+			EMIT_MOV(compiler, dst, dstw, TMP_REGISTER, 0);
+		}
+		else {
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+			compiler->skip_checks = 1;
+#endif
+			return sljit_emit_op2(compiler, op, dst_save, dstw_save, dst_save, dstw_save, TMP_REGISTER, 0);
+		}
+	}
+#else
+	if (op == SLJIT_MOV) {
+		if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_TEMPORARY_REG3) {
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 3 + 3);
+			FAIL_IF(!buf);
+			INC_SIZE(3 + 3);
+			/* Set low byte to conditional flag. */
+			*buf++ = 0x0f;
+			*buf++ = cond_set;
+			*buf++ = 0xC0 | reg_map[dst];
+
+			*buf++ = 0x0f;
+			*buf++ = 0xb6;
+			*buf = 0xC0 | (reg_map[dst] << 3) | reg_map[dst];
+		}
+		else {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_TEMPORARY_REG1, 0);
+
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 3 + 3);
+			FAIL_IF(!buf);
+			INC_SIZE(3 + 3);
+			/* Set al to conditional flag. */
+			*buf++ = 0x0f;
+			*buf++ = cond_set;
+			*buf++ = 0xC0;
+
+			*buf++ = 0x0f;
+			*buf++ = 0xb6;
+			if (dst >= SLJIT_SAVED_REG1 && dst <= SLJIT_NO_REGISTERS)
+				*buf = 0xC0 | (reg_map[dst] << 3);
+			else {
+				*buf = 0xC0;
+				EMIT_MOV(compiler, dst, dstw, SLJIT_TEMPORARY_REG1, 0);
+			}
+
+			EMIT_MOV(compiler, SLJIT_TEMPORARY_REG1, 0, TMP_REGISTER, 0);
+		}
+	}
+	else {
+		if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_TEMPORARY_REG3) {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, dst, 0);
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 3);
+			FAIL_IF(!buf);
+			INC_SIZE(3);
+
+			*buf++ = 0x0f;
+			*buf++ = cond_set;
+			*buf++ = 0xC0 | reg_map[dst];
+		}
+		else {
+			EMIT_MOV(compiler, TMP_REGISTER, 0, SLJIT_TEMPORARY_REG1, 0);
+
+			buf = (sljit_ub*)ensure_buf(compiler, 1 + 3 + 3 + 1);
+			FAIL_IF(!buf);
+			INC_SIZE(3 + 3 + 1);
+			/* Set al to conditional flag. */
+			*buf++ = 0x0f;
+			*buf++ = cond_set;
+			*buf++ = 0xC0;
+
+			*buf++ = 0x0f;
+			*buf++ = 0xb6;
+			*buf++ = 0xC0;
+
+			*buf++ = 0x90 + reg_map[TMP_REGISTER];
+		}
+#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
+		compiler->skip_checks = 1;
+#endif
+		return sljit_emit_op2(compiler, op, dst_save, dstw_save, dst_save, dstw_save, TMP_REGISTER, 0);
+	}
+#endif
+
+	return SLJIT_SUCCESS;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE int sljit_get_local_base(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w offset)
+{
+	CHECK_ERROR();
+	check_sljit_get_local_base(compiler, dst, dstw, offset);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	CHECK_EXTRA_REGS(dst, dstw, (void)0);
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	compiler->mode32 = 0;
+#endif
+
+	ADJUST_LOCAL_OFFSET(SLJIT_MEM1(SLJIT_LOCALS_REG), offset);
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	if (NOT_HALFWORD(offset)) {
+		FAIL_IF(emit_load_imm64(compiler, TMP_REGISTER, offset));
+#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
+		SLJIT_ASSERT(emit_lea_binary(compiler, dst, dstw, SLJIT_LOCALS_REG, 0, TMP_REGISTER, 0) != SLJIT_ERR_UNSUPPORTED);
+		return compiler->error;
+#else
+		return emit_lea_binary(compiler, dst, dstw, SLJIT_LOCALS_REG, 0, TMP_REGISTER, 0);
+#endif
+	}
+#endif
+
+	if (offset != 0)
+		return emit_lea_binary(compiler, dst, dstw, SLJIT_LOCALS_REG, 0, SLJIT_IMM, offset);
+	return emit_mov(compiler, dst, dstw, SLJIT_LOCALS_REG, 0);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
+{
+	sljit_ub *buf;
+	struct sljit_const *const_;
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	int reg;
+#endif
+
+	CHECK_ERROR_PTR();
+	check_sljit_emit_const(compiler, dst, dstw, init_value);
+	ADJUST_LOCAL_OFFSET(dst, dstw);
+
+	CHECK_EXTRA_REGS(dst, dstw, (void)0);
+
+	const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
+	PTR_FAIL_IF(!const_);
+	set_const(const_, compiler);
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	compiler->mode32 = 0;
+	reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REGISTER;
+
+	if (emit_load_imm64(compiler, reg, init_value))
+		return NULL;
+#else
+	if (dst == SLJIT_UNUSED)
+		dst = TMP_REGISTER;
+
+	if (emit_mov(compiler, dst, dstw, SLJIT_IMM, init_value))
+		return NULL;
+#endif
+
+	buf = (sljit_ub*)ensure_buf(compiler, 2);
+	PTR_FAIL_IF(!buf);
+
+	*buf++ = 0;
+	*buf++ = 1;
+
+#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
+	if (reg == TMP_REGISTER && dst != SLJIT_UNUSED)
+		if (emit_mov(compiler, dst, dstw, TMP_REGISTER, 0))
+			return NULL;
+#endif
+
+	return const_;
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
+{
+#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
+	*(sljit_w*)addr = new_addr - (addr + 4);
+#else
+	*(sljit_uw*)addr = new_addr;
+#endif
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
+{
+	*(sljit_w*)addr = new_constant;
+}
diff --git a/8.31/sljit/sljitUtils.c b/8.31/sljit/sljitUtils.c
new file mode 100644
index 0000000..21f5e94
--- /dev/null
+++ b/8.31/sljit/sljitUtils.c
@@ -0,0 +1,274 @@
+/*
+ *    Stack-less Just-In-Time compiler
+ *
+ *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright notice, this list of
+ *      conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *      of conditions and the following disclaimer in the documentation and/or other materials
+ *      provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* ------------------------------------------------------------------------ */
+/*  Locks                                                                   */
+/* ------------------------------------------------------------------------ */
+
+#if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR) || (defined SLJIT_UTIL_GLOBAL_LOCK && SLJIT_UTIL_GLOBAL_LOCK)
+
+#if (defined SLJIT_SINGLE_THREADED && SLJIT_SINGLE_THREADED)
+
+#if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
+
+static SLJIT_INLINE void allocator_grab_lock(void)
+{
+	/* Always successful. */
+}
+
+static SLJIT_INLINE void allocator_release_lock(void)
+{
+	/* Always successful. */
+}
+
+#endif /* SLJIT_EXECUTABLE_ALLOCATOR */
+
+#if (defined SLJIT_UTIL_GLOBAL_LOCK && SLJIT_UTIL_GLOBAL_LOCK)
+
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_grab_lock(void)
+{
+	/* Always successful. */
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_release_lock(void)
+{
+	/* Always successful. */
+}
+
+#endif /* SLJIT_UTIL_GLOBAL_LOCK */
+
+#elif defined(_WIN32) /* SLJIT_SINGLE_THREADED */
+
+#include "windows.h"
+
+#if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
+
+static HANDLE allocator_mutex = 0;
+
+static SLJIT_INLINE void allocator_grab_lock(void)
+{
+	/* No idea what to do if an error occures. Static mutexes should never fail... */
+	if (!allocator_mutex)
+		allocator_mutex = CreateMutex(NULL, TRUE, NULL);
+	else
+		WaitForSingleObject(allocator_mutex, INFINITE);
+}
+
+static SLJIT_INLINE void allocator_release_lock(void)
+{
+	ReleaseMutex(allocator_mutex);
+}
+
+#endif /* SLJIT_EXECUTABLE_ALLOCATOR */
+
+#if (defined SLJIT_UTIL_GLOBAL_LOCK && SLJIT_UTIL_GLOBAL_LOCK)
+
+static HANDLE global_mutex = 0;
+
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_grab_lock(void)
+{
+	/* No idea what to do if an error occures. Static mutexes should never fail... */
+	if (!global_mutex)
+		global_mutex = CreateMutex(NULL, TRUE, NULL);
+	else
+		WaitForSingleObject(global_mutex, INFINITE);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_release_lock(void)
+{
+	ReleaseMutex(global_mutex);
+}
+
+#endif /* SLJIT_UTIL_GLOBAL_LOCK */
+
+#else /* _WIN32 */
+
+#include "pthread.h"
+
+#if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
+
+static pthread_mutex_t allocator_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static SLJIT_INLINE void allocator_grab_lock(void)
+{
+	pthread_mutex_lock(&allocator_mutex);
+}
+
+static SLJIT_INLINE void allocator_release_lock(void)
+{
+	pthread_mutex_unlock(&allocator_mutex);
+}
+
+#endif /* SLJIT_EXECUTABLE_ALLOCATOR */
+
+#if (defined SLJIT_UTIL_GLOBAL_LOCK && SLJIT_UTIL_GLOBAL_LOCK)
+
+static pthread_mutex_t global_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_grab_lock(void)
+{
+	pthread_mutex_lock(&global_mutex);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_release_lock(void)
+{
+	pthread_mutex_unlock(&global_mutex);
+}
+
+#endif /* SLJIT_UTIL_GLOBAL_LOCK */
+
+#endif /* _WIN32 */
+
+/* ------------------------------------------------------------------------ */
+/*  Stack                                                                   */
+/* ------------------------------------------------------------------------ */
+
+#if (defined SLJIT_UTIL_STACK && SLJIT_UTIL_STACK)
+
+#ifdef _WIN32
+#include "windows.h"
+#else
+#include <sys/mman.h>
+#include <unistd.h>
+#endif
+
+/* Planning to make it even more clever in the future. */
+static sljit_w sljit_page_align = 0;
+
+SLJIT_API_FUNC_ATTRIBUTE struct sljit_stack* SLJIT_CALL sljit_allocate_stack(sljit_uw limit, sljit_uw max_limit)
+{
+	struct sljit_stack *stack;
+	union {
+		void *ptr;
+		sljit_uw uw;
+	} base;
+#ifdef _WIN32
+	SYSTEM_INFO si;
+#endif
+
+	if (limit > max_limit || limit < 1)
+		return NULL;
+
+#ifdef _WIN32
+	if (!sljit_page_align) {
+		GetSystemInfo(&si);
+		sljit_page_align = si.dwPageSize - 1;
+	}
+#else
+	if (!sljit_page_align) {
+		sljit_page_align = sysconf(_SC_PAGESIZE);
+		/* Should never happen. */
+		if (sljit_page_align < 0)
+			sljit_page_align = 4096;
+		sljit_page_align--;
+	}
+#endif
+
+	/* Align limit and max_limit. */
+	max_limit = (max_limit + sljit_page_align) & ~sljit_page_align;
+
+	stack = (struct sljit_stack*)SLJIT_MALLOC(sizeof(struct sljit_stack));
+	if (!stack)
+		return NULL;
+
+#ifdef _WIN32
+	base.ptr = VirtualAlloc(0, max_limit, MEM_RESERVE, PAGE_READWRITE);
+	if (!base.ptr) {
+		SLJIT_FREE(stack);
+		return NULL;
+	}
+	stack->base = base.uw;
+	stack->limit = stack->base;
+	stack->max_limit = stack->base + max_limit;
+	if (sljit_stack_resize(stack, stack->base + limit)) {
+		sljit_free_stack(stack);
+		return NULL;
+	}
+#else
+	base.ptr = mmap(0, max_limit, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (base.ptr == MAP_FAILED) {
+		SLJIT_FREE(stack);
+		return NULL;
+	}
+	stack->base = base.uw;
+	stack->limit = stack->base + limit;
+	stack->max_limit = stack->base + max_limit;
+#endif
+	stack->top = stack->base;
+	return stack;
+}
+
+#undef PAGE_ALIGN
+
+SLJIT_API_FUNC_ATTRIBUTE void SLJIT_CALL sljit_free_stack(struct sljit_stack* stack)
+{
+#ifdef _WIN32
+	VirtualFree((void*)stack->base, 0, MEM_RELEASE);
+#else
+	munmap((void*)stack->base, stack->max_limit - stack->base);
+#endif
+	SLJIT_FREE(stack);
+}
+
+SLJIT_API_FUNC_ATTRIBUTE sljit_w SLJIT_CALL sljit_stack_resize(struct sljit_stack* stack, sljit_uw new_limit)
+{
+	sljit_uw aligned_old_limit;
+	sljit_uw aligned_new_limit;
+
+	if ((new_limit > stack->max_limit) || (new_limit < stack->base))
+		return -1;
+#ifdef _WIN32
+	aligned_new_limit = (new_limit + sljit_page_align) & ~sljit_page_align;
+	aligned_old_limit = (stack->limit + sljit_page_align) & ~sljit_page_align;
+	if (aligned_new_limit != aligned_old_limit) {
+		if (aligned_new_limit > aligned_old_limit) {
+			if (!VirtualAlloc((void*)aligned_old_limit, aligned_new_limit - aligned_old_limit, MEM_COMMIT, PAGE_READWRITE))
+				return -1;
+		}
+		else {
+			if (!VirtualFree((void*)aligned_new_limit, aligned_old_limit - aligned_new_limit, MEM_DECOMMIT))
+				return -1;
+		}
+	}
+	stack->limit = new_limit;
+	return 0;
+#else
+	if (new_limit >= stack->limit) {
+		stack->limit = new_limit;
+		return 0;
+	}
+	aligned_new_limit = (new_limit + sljit_page_align) & ~sljit_page_align;
+	aligned_old_limit = (stack->limit + sljit_page_align) & ~sljit_page_align;
+	if (aligned_new_limit < aligned_old_limit)
+		posix_madvise((void*)aligned_new_limit, aligned_old_limit - aligned_new_limit, POSIX_MADV_DONTNEED);
+	stack->limit = new_limit;
+	return 0;
+#endif
+}
+
+#endif /* SLJIT_UTIL_STACK */
+
+#endif
diff --git a/8.31/ucp.h b/8.31/ucp.h
new file mode 100644
index 0000000..59c3bec
--- /dev/null
+++ b/8.31/ucp.h
@@ -0,0 +1,173 @@
+/*************************************************
+*          Unicode Property Table handler        *
+*************************************************/
+
+#ifndef _UCP_H
+#define _UCP_H
+
+/* This file contains definitions of the property values that are returned by
+the UCD access macros. New values that are added for new releases of Unicode
+should always be at the end of each enum, for backwards compatibility. */
+
+/* These are the general character categories. */
+
+enum {
+  ucp_C,     /* Other */
+  ucp_L,     /* Letter */
+  ucp_M,     /* Mark */
+  ucp_N,     /* Number */
+  ucp_P,     /* Punctuation */
+  ucp_S,     /* Symbol */
+  ucp_Z      /* Separator */
+};
+
+/* These are the particular character types. */
+
+enum {
+  ucp_Cc,    /* Control */
+  ucp_Cf,    /* Format */
+  ucp_Cn,    /* Unassigned */
+  ucp_Co,    /* Private use */
+  ucp_Cs,    /* Surrogate */
+  ucp_Ll,    /* Lower case letter */
+  ucp_Lm,    /* Modifier letter */
+  ucp_Lo,    /* Other letter */
+  ucp_Lt,    /* Title case letter */
+  ucp_Lu,    /* Upper case letter */
+  ucp_Mc,    /* Spacing mark */
+  ucp_Me,    /* Enclosing mark */
+  ucp_Mn,    /* Non-spacing mark */
+  ucp_Nd,    /* Decimal number */
+  ucp_Nl,    /* Letter number */
+  ucp_No,    /* Other number */
+  ucp_Pc,    /* Connector punctuation */
+  ucp_Pd,    /* Dash punctuation */
+  ucp_Pe,    /* Close punctuation */
+  ucp_Pf,    /* Final punctuation */
+  ucp_Pi,    /* Initial punctuation */
+  ucp_Po,    /* Other punctuation */
+  ucp_Ps,    /* Open punctuation */
+  ucp_Sc,    /* Currency symbol */
+  ucp_Sk,    /* Modifier symbol */
+  ucp_Sm,    /* Mathematical symbol */
+  ucp_So,    /* Other symbol */
+  ucp_Zl,    /* Line separator */
+  ucp_Zp,    /* Paragraph separator */
+  ucp_Zs     /* Space separator */
+};
+
+/* These are the script identifications. */
+
+enum {
+  ucp_Arabic,
+  ucp_Armenian,
+  ucp_Bengali,
+  ucp_Bopomofo,
+  ucp_Braille,
+  ucp_Buginese,
+  ucp_Buhid,
+  ucp_Canadian_Aboriginal,
+  ucp_Cherokee,
+  ucp_Common,
+  ucp_Coptic,
+  ucp_Cypriot,
+  ucp_Cyrillic,
+  ucp_Deseret,
+  ucp_Devanagari,
+  ucp_Ethiopic,
+  ucp_Georgian,
+  ucp_Glagolitic,
+  ucp_Gothic,
+  ucp_Greek,
+  ucp_Gujarati,
+  ucp_Gurmukhi,
+  ucp_Han,
+  ucp_Hangul,
+  ucp_Hanunoo,
+  ucp_Hebrew,
+  ucp_Hiragana,
+  ucp_Inherited,
+  ucp_Kannada,
+  ucp_Katakana,
+  ucp_Kharoshthi,
+  ucp_Khmer,
+  ucp_Lao,
+  ucp_Latin,
+  ucp_Limbu,
+  ucp_Linear_B,
+  ucp_Malayalam,
+  ucp_Mongolian,
+  ucp_Myanmar,
+  ucp_New_Tai_Lue,
+  ucp_Ogham,
+  ucp_Old_Italic,
+  ucp_Old_Persian,
+  ucp_Oriya,
+  ucp_Osmanya,
+  ucp_Runic,
+  ucp_Shavian,
+  ucp_Sinhala,
+  ucp_Syloti_Nagri,
+  ucp_Syriac,
+  ucp_Tagalog,
+  ucp_Tagbanwa,
+  ucp_Tai_Le,
+  ucp_Tamil,
+  ucp_Telugu,
+  ucp_Thaana,
+  ucp_Thai,
+  ucp_Tibetan,
+  ucp_Tifinagh,
+  ucp_Ugaritic,
+  ucp_Yi,
+  /* New for Unicode 5.0: */
+  ucp_Balinese,
+  ucp_Cuneiform,
+  ucp_Nko,
+  ucp_Phags_Pa,
+  ucp_Phoenician,
+  /* New for Unicode 5.1: */
+  ucp_Carian,
+  ucp_Cham,
+  ucp_Kayah_Li,
+  ucp_Lepcha,
+  ucp_Lycian,
+  ucp_Lydian,
+  ucp_Ol_Chiki,
+  ucp_Rejang,
+  ucp_Saurashtra,
+  ucp_Sundanese,
+  ucp_Vai,
+  /* New for Unicode 5.2: */
+  ucp_Avestan,
+  ucp_Bamum,
+  ucp_Egyptian_Hieroglyphs,
+  ucp_Imperial_Aramaic,
+  ucp_Inscriptional_Pahlavi,
+  ucp_Inscriptional_Parthian,
+  ucp_Javanese,
+  ucp_Kaithi,
+  ucp_Lisu,
+  ucp_Meetei_Mayek,
+  ucp_Old_South_Arabian,
+  ucp_Old_Turkic,
+  ucp_Samaritan,
+  ucp_Tai_Tham,
+  ucp_Tai_Viet,
+  /* New for Unicode 6.0.0: */
+  ucp_Batak,
+  ucp_Brahmi,
+  ucp_Mandaic,
+  /* New for Unicode 6.1.0: */
+  ucp_Chakma,
+  ucp_Meroitic_Cursive,
+  ucp_Meroitic_Hieroglyphs,
+  ucp_Miao,
+  ucp_Sharada,
+  ucp_Sora_Sompeng,
+  ucp_Takri
+};
+
+#endif
+
+/* End of ucp.h */
diff --git a/8.31/windows/config.h b/8.31/windows/config.h
new file mode 100644
index 0000000..df2d1ff
--- /dev/null
+++ b/8.31/windows/config.h
@@ -0,0 +1,49 @@
+/* config.h for CMake builds */
+
+/* #undef HAVE_DIRENT_H */
+#define HAVE_SYS_STAT_H 1
+#define HAVE_SYS_TYPES_H 1
+/* #undef HAVE_UNISTD_H */
+#define HAVE_WINDOWS_H 1
+
+/* #undef HAVE_TYPE_TRAITS_H */
+/* #undef HAVE_BITS_TYPE_TRAITS_H */
+
+/* #undef HAVE_BCOPY */
+#define HAVE_MEMMOVE 1
+#define HAVE_STRERROR 1
+/* #undef HAVE_STRTOLL */
+/* #undef HAVE_STRTOQ */
+#define HAVE__STRTOI64 1
+
+#define PCRE_STATIC 1
+
+#define SUPPORT_PCRE8 1
+/* #undef SUPPORT_PCRE16 */
+/* #undef SUPPORT_JIT */
+#define SUPPORT_PCREGREP_JIT 1
+/* #undef SUPPORT_UTF */
+/* #undef SUPPORT_UCP */
+/* #undef EBCDIC */
+/* #undef BSR_ANYCRLF */
+/* #undef NO_RECURSE */
+
+#define HAVE_LONG_LONG 1
+#define HAVE_UNSIGNED_LONG_LONG 1
+
+/* #undef SUPPORT_LIBBZ2 */
+/* #undef SUPPORT_LIBZ */
+/* #undef SUPPORT_LIBEDIT */
+/* #undef SUPPORT_LIBREADLINE */
+
+#define NEWLINE			10
+#define POSIX_MALLOC_THRESHOLD	10
+#define LINK_SIZE		2
+#define MATCH_LIMIT		10000000
+#define MATCH_LIMIT_RECURSION	MATCH_LIMIT
+#define PCREGREP_BUFSIZE        20480
+
+#define MAX_NAME_SIZE	32
+#define MAX_NAME_COUNT	10000
+
+/* end config.h for CMake builds */
diff --git a/pcre.pri b/pcre.pri
new file mode 100644
index 0000000..0a0ffec
--- /dev/null
+++ b/pcre.pri
@@ -0,0 +1,24 @@
+SOURCES += \
+    8.31/pcre_byte_order.c \
+    8.31/pcre_chartables.c \
+    8.31/pcre_compile.c \
+    8.31/pcre_config.c \
+    8.31/pcre_dfa_exec.c \
+    8.31/pcre_exec.c \
+    8.31/pcre_fullinfo.c \
+    8.31/pcre_get.c \
+    8.31/pcre_globals.c \
+    8.31/pcre_jit_compile.c \
+    8.31/pcre_maketables.c \
+    8.31/pcre_newline.c \
+    8.31/pcre_ord2utf8.c \
+    8.31/pcre_printint.c \
+    8.31/pcre_refcount.c \
+    8.31/pcre_string_utils.c \
+    8.31/pcre_study.c \
+    8.31/pcre_tables.c \
+    8.31/pcre_ucd.c \
+    8.31/pcre_valid_utf8.c \
+    8.31/pcre_version.c \
+    8.31/pcre_xclass.c \
+    8.31/pcrecpp.cpp
diff --git a/pcre.pro b/pcre.pro
new file mode 100644
index 0000000..9ae1bff
--- /dev/null
+++ b/pcre.pro
@@ -0,0 +1,23 @@
+TARGET = pcre
+include($$PWD/../../commonplatform.pri)
+CONFIG += staticlib
+
+DEFINES += HAVE_CONFIG_H
+
+win32 {
+INCLUDEPATH += 8.31/windows
+}
+
+linux|integrity {
+INCLUDEPATH += 8.31/linux
+}
+
+mac {
+INCLUDEPATH += 8.31/macosx
+}
+
+INCLUDEPATH += 8.31
+
+include(pcre.pri)
+
+load(qt_helper_lib)
author	Oswald Buddenhagen <oswald.buddenhagen@qt.io>	2017-10-06 11:52:00 +0000
committer	Oswald Buddenhagen <oswald.buddenhagen@qt.io>	2017-10-06 16:48:38 +0200
commit	50b7967a78f8f7b1b45444577662ba20ed2643c8 (patch)
tree	1486c059593a413b66218e23b6025faa2d8e5011