--- gpsim-0.22.0/src/value.h.old	2008-04-22 20:53:17.310780635 +0800
+++ gpsim-0.22.0/src/value.h.old	2008-04-22 20:53:34.245777692 +0800
@@ -23,6 +23,7 @@ 
 
 #include "gpsim_object.h"
 #include <glib.h>
+#include <cstring>
 
 class Processor;
 class Module;