--- bindings/Tcl/pitcl.c.orig	2007-01-15 15:23:16.000000000 +0100
+++ bindings/Tcl/pitcl.c	2007-01-15 15:23:35.000000000 +0100
@@ -15,6 +15,7 @@
 
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 #include <errno.h>
 #include <tcl.h>
 #include <pi-source.h>