#if defined HAVE_WCHAR_H || defined _LIBC
# include <wchar.h>
#endif /* HAVE_WCHAR_H || _LIBC */
-#if defined HAVE_WCTYPE_H || defined _LIBC
-# include <wctype.h>
-#endif /* HAVE_WCTYPE_H || _LIBC */
+#include <wctype.h>
#include <stdint.h>
#if defined _LIBC
# include <bits/libc-lock.h>