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Diffstat (limited to 'm4/mbstate_t.m4')
| -rw-r--r-- | m4/mbstate_t.m4 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4 new file mode 100644 index 000000000000..a07f51bc154b --- /dev/null +++ b/m4/mbstate_t.m4 @@ -0,0 +1,32 @@ +# mbstate_t.m4 serial 9 +dnl Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +# 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. + +# AC_TYPE_MBSTATE_T +# ----------------- +AC_DEFUN([AC_TYPE_MBSTATE_T], + [AC_CACHE_CHECK([for mbstate_t], ac_cv_type_mbstate_t, + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [AC_INCLUDES_DEFAULT +# 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 = yes; then + AC_DEFINE([HAVE_MBSTATE_T], 1, + [Define to 1 if <wchar.h> declares mbstate_t.]) + else + AC_DEFINE([mbstate_t], int, + [Define to a type if <wchar.h> does not define.]) + fi]) |