-AC_DEFUN(AC_MBSTATE_T_OBJECT,
- [
- AC_CHECK_HEADERS(stdlib.h)
-
- AC_CACHE_CHECK([for mbstate_t object], ac_cv_type_mbstate_t_object,
- [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_object=yes,
- ac_cv_type_mbstate_t_object=no)])
- if test $ac_cv_type_mbstate_t_object = yes; then
- AC_DEFINE(HAVE_MBSTATE_T_OBJECT, 1,
- [Define if mbstate_t is an object type.])
+ 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.])