diff -r 2a9a5d7f1a16 -r 6b2b718420eb kruskalbox.cc
--- a/kruskalbox.cc	Wed Feb 28 15:19:20 2007 +0000
+++ b/kruskalbox.cc	Wed Feb 28 18:20:28 2007 +0000
@@ -16,6 +16,11 @@
  *
  */
 
+#include <lemon/kruskal.h>
+
+#include <mapstorage.h>
+#include <mapselector.h>
+#include <algobox.h>
 #include <kruskalbox.h>
 
 enum {INPUT, OUTPUT, MAP_NUM};