+ else
+ 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 != yes; then
+ AC_DEFINE(mbstate_t, int,
+ [Define to int if <wchar.h> does not define.])
+ fi