diff options
Diffstat (limited to 'm4/gnulib-common.m4')
| -rw-r--r-- | m4/gnulib-common.m4 | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4 index 36f2acc5..5f07855a 100644 --- a/m4/gnulib-common.m4 +++ b/m4/gnulib-common.m4 @@ -1,5 +1,5 @@ -# gnulib-common.m4 serial 38 -dnl Copyright (C) 2007-2017 Free Software Foundation, Inc. +# gnulib-common.m4 serial 39 +dnl Copyright (C) 2007-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -72,6 +72,13 @@ AC_DEFUN([gl_COMMON_BODY], [ #else # define _GL_ATTRIBUTE_CONST /* empty */ #endif + +/* The __malloc__ attribute was added in gcc 3. */ +#if 3 <= __GNUC__ +# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__)) +#else +# define _GL_ATTRIBUTE_MALLOC /* empty */ +#endif ]) dnl Preparation for running test programs: dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not @@ -228,13 +235,13 @@ m4_ifndef([AS_VAR_IF], # This is like AC_PROG_CC_C99, except that # - AC_PROG_CC_C99 did not exist in Autoconf versions < 2.60, # - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC -# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00367.html>, +# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00367.html>, # but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99 -# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00441.html>. +# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00441.html>. # Remaining problems: # - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options # to CC twice -# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00431.html>. +# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00431.html>. # - AC_PROG_CC_STDC is likely to change now that C11 is an ISO standard. AC_DEFUN([gl_PROG_CC_C99], [ @@ -347,16 +354,16 @@ AC_DEFUN([AC_C_RESTRICT], for ac_kw in __restrict __restrict__ _Restrict restrict; do AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( - [[typedef int *int_ptr; - int foo (int_ptr $ac_kw ip) { return ip[0]; } - int bar (int [$ac_kw]); /* Catch GCC bug 14050. */ - int bar (int ip[$ac_kw]) { return ip[0]; } - ]], - [[int s[1]; - int *$ac_kw t = s; - t[0] = 0; - return foo (t) + bar (t); - ]])], + [[typedef int *int_ptr; + int foo (int_ptr $ac_kw ip) { return ip[0]; } + int bar (int [$ac_kw]); /* Catch GCC bug 14050. */ + int bar (int ip[$ac_kw]) { return ip[0]; } + ]], + [[int s[1]; + int *$ac_kw t = s; + t[0] = 0; + return foo (t) + bar (t); + ]])], [ac_cv_c_restrict=$ac_kw]) test "$ac_cv_c_restrict" != no && break done |