--- a/src/newgrf_house.h	Wed Jun 13 11:17:30 2007 +0000
+++ b/src/newgrf_house.h	Wed Jun 13 11:45:14 2007 +0000
@@ -41,15 +41,7 @@
 	uint8  class_id;  ////< The class id within the grf file
 };
 
-extern HouseIDMapping _house_id_mapping[HOUSE_MAX]; ///< Declared in newgrf_house.cpp
-
-void AddHouseOverride(uint8 local_id, uint house_type);
-void ResetHouseOverrides();
-
-void SetHouseSpec(const HouseSpec *hs);
-
 void CheckHouseIDs();
-void ResetHouseIDMapping();
 
 HouseClassID AllocateHouseClassID(byte grf_class_id, uint32 grfid);
 
@@ -62,7 +54,7 @@
 void AnimateNewHouseTile(TileIndex tile);
 void ChangeHouseAnimationFrame(TileIndex tile, uint16 callback_result);
 
-uint16 GetHouseCallback(uint16 callback, uint32 param1, HouseID house_id, Town *town, TileIndex tile);
+uint16 GetHouseCallback(uint16 callback, uint32 param1, uint32 param2, HouseID house_id, Town *town, TileIndex tile);
 
 bool CanDeleteHouse(TileIndex tile);