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(AC_TYPE_MBSTATE_T): New macro.

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This commit is contained in:
Paul Eggert 2002-05-28 04:13:07 +00:00
parent 44b3643f83
commit 8d17870f3d
1 changed files with 20 additions and 0 deletions
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20
lib/autoconf/types.m4
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@ -289,6 +289,26 @@ AU_DEFUN([AM_TYPE_PTRDIFF_T],
[AC_CHECK_TYPES(ptrdiff_t)])
# 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])
# AC_TYPE_UID_T
# -------------
# FIXME: Rewrite using AC_CHECK_TYPE.