Update bundled zlib to version 1.3

zlib 1.3 has been available since August 18, 2023.

Version 1.3 now defines the following:

 #  define crc32_combine_gen     z_crc32_combine_gen
 #  define crc32_combine_gen64   z_crc32_combine_gen64
 #  define crc32_combine_op      z_crc32_combine_op

We patched those in manually with qtpatches.diff, so we update it to
reflect these changes.

Updated the diff with 'git diff --relative > qtpatches.diff' from within
the 3rdparty/zlib directory.

Since updating zlib always requires some manual intervention add a
minimal guide that will be printed on using import_from_zlib_tarball.sh.

As a drive-by fix an error in import_from_zlib_tarball.sh where passing
in a path already containing a backslash as:

 import_from_zlib_tarball.sh zlib-1.x/ ./

would append another backshlash to that path (zlib-1.x//). Furthermore
add the '-v' flag to the copy command to make it more verbose.

[ChangeLog][Third-Party Code] zlib was updated to version 1.3.

Task-number: QTBUG-116236
Pick-to: 6.6 6.5 6.2 5.15
Change-Id: Ib7c8698035e1e049b455308c5774fcaf88b7622a
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/3rdparty/zlib/src/inftrees.h b/src/3rdparty/zlib/src/inftrees.h
index f53665311c..a10712d8cb 100644
--- a/src/3rdparty/zlib/src/inftrees.h
+++ b/src/3rdparty/zlib/src/inftrees.h
@@ -57,6 +57,6 @@ typedef enum {
     DISTS
 } codetype;
 
-int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens,
-                             unsigned codes, code FAR * FAR *table,
-                             unsigned FAR *bits, unsigned short FAR *work));
+int ZLIB_INTERNAL inflate_table(codetype type, unsigned short FAR *lens,
+                                unsigned codes, code FAR * FAR *table,
+                                unsigned FAR *bits, unsigned short FAR *work);