--- blackbox-0.65.0/src/Window.cc.orig	2002-09-17 11:23:35.000000000 -0400
+++ blackbox-0.65.0/src/Window.cc	2003-09-04 17:38:56.000000000 -0400
@@ -55,6 +55,7 @@
 #include "Window.hh"
 #include "Windowmenu.hh"
 #include "Workspace.hh"
+#include <assert.h>
 
 
 /*