(svn r23072) -Feature: [NewGRF] House callback 0x148.

src/newgrf_spritegroup.h

@@ -341,6 +341,7 @@ struct ResolverObject {
 			HouseID house_id;
 			uint16 initial_random_bits;    ///< Random bits during construction checks
 			bool not_yet_constructed;      ///< True for construction check
+			uint32 watched_cargo_triggers; ///< Cargo types that triggered the watched cargo callback.
 		} house;
 		struct {
 			TileIndex tile;