--- a/ai_old.c	Fri Jul 22 06:31:31 2005 +0000
+++ b/ai_old.c	Fri Jul 22 07:02:20 2005 +0000
@@ -1,5 +1,6 @@
 #include "stdafx.h"
 #include "openttd.h"
+#include "functions.h"
 #include "map.h"
 #include "tile.h"
 #include "player.h"