--- linkablemapobj.cpp.orig	Fri Jul  8 09:24:42 2005
+++ linkablemapobj.cpp	Sat Aug  6 17:22:48 2005
@@ -1,3 +1,5 @@
+#include <math.h>
+
 #include "linkablemapobj.h"
 #include "branchobj.h"
 #include "mapeditor.h"