diff -r b9c6a47c977b -r 64613d8fae28 lemon/bits/graph_extender.h
--- a/lemon/bits/graph_extender.h	Tue Jul 15 18:43:41 2008 +0100
+++ b/lemon/bits/graph_extender.h	Tue Jul 15 18:49:30 2008 +0100
@@ -19,8 +19,7 @@
 #ifndef LEMON_BITS_GRAPH_EXTENDER_H
 #define LEMON_BITS_GRAPH_EXTENDER_H
 
-#include <lemon/bits/invalid.h>
-#include <lemon/bits/utility.h>
+#include <lemon/core.h>
 
 #include <lemon/bits/map_extender.h>
 #include <lemon/bits/default_map.h>