--- a/ai/trolly/pathfinder.c	Fri Mar 31 15:34:22 2006 +0000
+++ b/ai/trolly/pathfinder.c	Fri Mar 31 16:01:59 2006 +0000
@@ -368,7 +368,7 @@
 }
 
 
-extern uint GetRailFoundation(uint tileh, uint bits);
+extern uint GetRailFoundation(uint tileh, TrackBits bits);
 extern uint GetRoadFoundation(uint tileh, uint bits);
 extern uint GetBridgeFoundation(uint tileh, Axis); // XXX function declaration in .c
 enum {