--- Xlib.h.orig	Thu Sep  2 18:16:43 1999
+++ Xlib.h	Thu Sep  2 18:17:07 1999
@@ -80,7 +80,8 @@
 #include <stddef.h>
 #else
 /* replace this with #include or typedef appropriate for your system */
-typedef unsigned long wchar_t;
+/* typedef unsigned long wchar_t; */
+#include <stddef.h>
 #endif
 #endif
 #endif