--- src/lib/IV-X11/xwindow.c.orig	Tue Nov 24 05:26:43 1992
+++ src/lib/IV-X11/xwindow.c	Sun Jan 17 17:48:18 1999
@@ -64,7 +64,7 @@
 
 /* no standard place for this */
 extern "C" {
-    extern int ioctl(int, int, ...);
+    extern int ioctl(int, long unsigned int, ...);
 }
 
 implementPtrList(WindowVisualList,WindowVisual)