--- a/tunnelbridge_cmd.c	Sat Jan 22 22:46:10 2005 +0000
+++ b/tunnelbridge_cmd.c	Sat Jan 22 22:47:58 2005 +0000
@@ -902,7 +902,7 @@
 
 
 // fast routine for getting the height of a middle bridge tile. 'tile' MUST be a middle bridge tile.
-uint GetBridgeHeight(const TileInfo *ti)
+static uint GetBridgeHeight(const TileInfo *ti)
 {
 	uint delta;
 	TileInfo ti_end;