--- a/src/dummy_land.cpp	Wed Jun 13 11:45:14 2007 +0000
+++ b/src/dummy_land.cpp	Wed Jun 13 12:05:56 2007 +0000
@@ -63,7 +63,7 @@
 	/* not used */
 }
 
-static uint32 GetTileTrackStatus_Dummy(TileIndex tile, TransportType mode)
+static uint32 GetTileTrackStatus_Dummy(TileIndex tile, TransportType mode, uint sub_mode)
 {
 	return 0;
 }