--- image.h.orig	Thu May 19 21:39:53 2011
+++ image.h	Thu May 19 21:38:04 2011
@@ -63,7 +63,7 @@ typedef struct {
     unsigned long sourceMask;
 } Image;
 
-#ifdef _XLIB_H_
+#if defined(_XLIB_H_) || defined(_X11_XLIB_H_)
 /* Used to transfer information to routines in iprocess.c */
 struct imageprocessinfo {
     int oilArea;