diff -r 8668e1b5dafb -r c786cd201266 lemon/adaptors.h
--- a/lemon/adaptors.h	Sun Feb 22 09:52:44 2009 +0000
+++ b/lemon/adaptors.h	Mon Feb 23 11:58:39 2009 +0100
@@ -30,6 +30,7 @@
 #include <lemon/bits/variant.h>
 
 #include <lemon/bits/graph_adaptor_extender.h>
+#include <lemon/bits/map_extender.h>
 #include <lemon/tolerance.h>
 
 #include <algorithm>