-# serial 4
+# serial 5
# From Paul Eggert.
AC_DEFUN(AC_MBSTATE_T_OBJECT,
[
- # Check for the mbstate_t type.
- ac_mbs_tmp=$ac_includes_default
- ac_includes_default="
-$ac_includes_default
-#if HAVE_WCHAR_H
-# include <wchar.h>
+ 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
-"
- AC_CHECK_TYPE(mbstate_t, int)
- # Restore the default value.
- ac_includes_default=$ac_mbs_tmp
+#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(mbstate_t, int,
+ [Define to int if <wchar.h> does not define.])
+ fi
AC_CACHE_CHECK([for mbstate_t object type], ac_cv_type_mbstate_t_object,
[AC_TRY_COMPILE([