--- errors.h.orig	2008-06-14 18:41:19.000000000 +0000
+++ errors.h	2008-06-14 18:41:36.000000000 +0000
@@ -35,6 +35,8 @@
 #ifndef EPIX_ERRORS
 #define EPIX_ERRORS
 
+
+#include <cstdlib>
 #include <iostream>
 #include <string>