diff -r 8668e1b5dafb -r c786cd201266 lemon/bits/edge_set_extender.h
--- a/lemon/bits/edge_set_extender.h	Sun Feb 22 09:52:44 2009 +0000
+++ b/lemon/bits/edge_set_extender.h	Mon Feb 23 11:58:39 2009 +0100
@@ -19,8 +19,10 @@
 #ifndef LEMON_BITS_EDGE_SET_EXTENDER_H
 #define LEMON_BITS_EDGE_SET_EXTENDER_H
 
+#include <lemon/core.h>
 #include <lemon/error.h>
 #include <lemon/bits/default_map.h>
+#include <lemon/bits/map_extender.h>
 
 ///\ingroup digraphbits
 ///\file