$NetBSD: patch-aj,v 1.2 2012/01/22 19:00:34 abs Exp $

X11R7 uses a different include guard.

--- pTk/Xlib.h.orig	2011-06-13 12:16:52.000000000 +0000
+++ pTk/Xlib.h
@@ -1,5 +1,8 @@
 #ifndef _XLIB
 #define _XLIB
+#if defined(_X11_XLIB_H_) && !defined(_XLIB_H_)
+#define _XLIB_H_
+#endif
 #ifndef _XLIB_H_
 #ifndef _X11_XLIB_H_
 extern XFontStruct *XLoadQueryFont  _ANSI_ARGS_((Display *, const char *));