diff -up ipe-6.0pre30/src/include/ipebase.h~ ipe-6.0pre30/src/include/ipebase.h
--- ipe-6.0pre30/src/include/ipebase.h~	2007-11-26 18:18:54.000000000 +0100
+++ ipe-6.0pre30/src/include/ipebase.h	2008-02-14 15:40:54.000000000 +0100
@@ -38,6 +38,7 @@
 #include <map>
 #include <list>
 #include <algorithm>
+#include <string.h>
 
 // --------------------------------------------------------------------