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| author | Alain Magloire <alainm@rcsm.ee.mcgill.ca> | 2001-04-02 18:00:24 +0000 |
|---|---|---|
| committer | Alain Magloire <alainm@rcsm.ee.mcgill.ca> | 2001-04-02 18:00:24 +0000 |
| commit | e13d1d9188dc408fd1287fef57f81663e3cd08cc (patch) | |
| tree | 23a2485dd731b325317d3c067062413b649ed762 /m4 | |
| parent | 0863b3dc9bd31259a8a00a72ee43ec56935a4039 (diff) | |
| download | grep-e13d1d9188dc408fd1287fef57f81663e3cd08cc.tar.gz | |
support for wchar_t
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/Makefile.am | 1 | ||||
| -rw-r--r-- | m4/mbstate_t.m4 | 29 |
2 files changed, 30 insertions, 0 deletions
diff --git a/m4/Makefile.am b/m4/Makefile.am index ec93d4bd..28438a45 100644 --- a/m4/Makefile.am +++ b/m4/Makefile.am @@ -16,6 +16,7 @@ EXTRA_DIST = decl.m4 \ largefile.m4 \ lcmessage.m4 \ malloc.m4 \ + mbstate_t.m4 \ missing.m4 \ progtest.m4 \ realloc.m4 \ diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4 new file mode 100644 index 00000000..a185a7db --- /dev/null +++ b/m4/mbstate_t.m4 @@ -0,0 +1,29 @@ +# serial 8 + +# From Paul Eggert. + +# BeOS 5 has <wchar.h> but does not define mbstate_t, +# so you can't declare an object of that type. +# Check for this incompatibility with Standard C. + +# Include stdlib.h first, because otherwise this test would fail on Linux +# (at least glibc-2.1.3) because the "_XOPEN_SOURCE 500" definition elicits +# a syntax error in wchar.h due to the use of undefined __int32_t. + +AC_DEFUN(AC_MBSTATE_T, + [ + AC_CHECK_HEADERS(stdlib.h) + + AC_CACHE_CHECK([for mbstate_t], ac_cv_type_mbstate_t, + [AC_TRY_COMPILE([ +#if HAVE_STDLIB_H +# include <stdlib.h> +#endif +#include <wchar.h>], + [mbstate_t x; return sizeof x;], + ac_cv_type_mbstate_t=yes, + ac_cv_type_mbstate_t=no)]) + if test $ac_cv_type_mbstate_t = no; then + AC_DEFINE(mbstate_t, int, + [Define to a type if <wchar.h> does not define.]) + fi]) |