diff -r c1cddeb8511c -r 383a632de666 src/clear_cmd.cpp
--- a/src/clear_cmd.cpp	Mon Feb 18 14:59:30 2008 +0000
+++ b/src/clear_cmd.cpp	Mon Feb 18 16:11:31 2008 +0000
@@ -315,7 +315,7 @@
 	/* not used */
 }
 
-static uint32 GetTileTrackStatus_Clear(TileIndex tile, TransportType mode, uint sub_mode)
+static uint32 GetTileTrackStatus_Clear(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
 {
 	return 0;
 }