diff -Naur pingus-0.6.0.orig/src/worldmap/graph.hxx pingus-0.6.0/src/worldmap/graph.hxx
--- pingus-0.6.0.orig/src/worldmap/graph.hxx	2005-02-20 20:41:19 +0300
+++ pingus-0.6.0/src/worldmap/graph.hxx	2005-02-20 21:10:48 +0300
@@ -21,6 +21,7 @@
 #define HEADER_GRAPH_HXX
 
 #include <cassert>
+#include <iostream>
 #include <algorithm>
 #include <vector>