diff -up ilmbase-1.0.2/Imath/ImathMatrix.h.cstring ilmbase-1.0.2/Imath/ImathMatrix.h
--- ilmbase-1.0.2/Imath/ImathMatrix.h.cstring	2010-07-16 17:48:40.000000000 -0500
+++ ilmbase-1.0.2/Imath/ImathMatrix.h	2010-07-28 09:49:44.528455468 -0500
@@ -49,6 +49,7 @@
 #include "ImathVec.h"
 #include "ImathShear.h"
 
+#include <cstring>
 #include <iostream>
 #include <iomanip>