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In 909696f13 (win32: Import regex source, 2010-04-14), Git's
compat/regex/ was imported wholesale, with one change (to avoid
redefining _GNU_SOURCE).
For the record, the git.git commit mentioned in that commit message
refers to a transient commit made to git.git's `next` branch which is
rewound with every major Git version, therefore it is long gone. Also
for the record, the correct reference would be: 3632cfc2487 (Use
compatibility regex library for OSX/Darwin, 2008-09-07), i.e. the
compat/regex/ source code as of Git v1.6.0.2.
This commit updates the regex source code to that of Git v2.13.2, or
bd8f0055836 (regex: fix a SIZE_MAX macro redefinition warning,
2016-06-07) in git.git.
Instead of the original fixup to avoid redefining _GNU_SOURCE, we now
require these changes relative to Git's source code:
> diff --git a/win32/regex.c b/win32/regex.c
> index 5cb23e5d5..95e5d757a 100644
> --- a/win32/regex.c
> +++ b/win32/regex.c
> @@ -18,9 +18,11 @@
> Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
> 02110-1301 USA. */
>
> -#ifdef HAVE_CONFIG_H
> -#include "config.h"
> -#endif
> +#define HAVE_LIBINTL_H 0
> +#define ENABLE_NLS 0
> +#define HAVE_ALLOCA 0
> +#define NO_MBSUPPORT 1
> +#define GAWK 1
>
> /* Make sure no one compiles this code with a C++ compiler. */
> #ifdef __cplusplus
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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