--- libfract4d/iterFunc.cpp.orig	Mon Oct 27 12:34:10 2003
+++ libfract4d/iterFunc.cpp	Sun Nov  2 23:06:05 2003
@@ -3,6 +3,7 @@
 #include "iterFunc.h"
 #include "io.h"
 
+#include <cassert>
 #include <cstddef>
 #include <iostream>
 #include <iomanip> // setprecision