--- a/bridge.h	Wed Dec 14 20:45:12 2005 +0000
+++ b/bridge.h	Thu Dec 15 17:55:59 2005 +0000
@@ -20,6 +20,6 @@
 } Bridge;
 
 extern const Bridge orig_bridge[MAX_BRIDGES];
-Bridge _bridge[MAX_BRIDGES];
+extern Bridge _bridge[MAX_BRIDGES];
 
 #endif /* BRIDGE_H */

--- a/engine.c	Wed Dec 14 20:45:12 2005 +0000
+++ b/engine.c	Thu Dec 15 17:55:59 2005 +0000
@@ -19,6 +19,12 @@
 #include "variables.h"
 #include "train.h"
 
+EngineInfo _engine_info[TOTAL_NUM_ENGINES];
+RailVehicleInfo _rail_vehicle_info[NUM_TRAIN_ENGINES];
+ShipVehicleInfo _ship_vehicle_info[NUM_SHIP_ENGINES];
+AircraftVehicleInfo _aircraft_vehicle_info[NUM_AIRCRAFT_ENGINES];
+RoadVehicleInfo _road_vehicle_info[NUM_ROAD_ENGINES];
+
 enum {
 	ENGINE_AVAILABLE = 1,
 	ENGINE_INTRODUCING = 2,

--- a/engine.h	Wed Dec 14 20:45:12 2005 +0000
+++ b/engine.h	Thu Dec 15 17:55:59 2005 +0000
@@ -251,11 +251,11 @@
 extern const AircraftVehicleInfo orig_aircraft_vehicle_info[NUM_AIRCRAFT_ENGINES];
 extern const RoadVehicleInfo orig_road_vehicle_info[NUM_ROAD_ENGINES];
 
-EngineInfo _engine_info[TOTAL_NUM_ENGINES];
-RailVehicleInfo _rail_vehicle_info[NUM_TRAIN_ENGINES];
-ShipVehicleInfo _ship_vehicle_info[NUM_SHIP_ENGINES];
-AircraftVehicleInfo _aircraft_vehicle_info[NUM_AIRCRAFT_ENGINES];
-RoadVehicleInfo _road_vehicle_info[NUM_ROAD_ENGINES];
+extern EngineInfo _engine_info[TOTAL_NUM_ENGINES];
+extern RailVehicleInfo _rail_vehicle_info[NUM_TRAIN_ENGINES];
+extern ShipVehicleInfo _ship_vehicle_info[NUM_SHIP_ENGINES];
+extern AircraftVehicleInfo _aircraft_vehicle_info[NUM_AIRCRAFT_ENGINES];
+extern RoadVehicleInfo _road_vehicle_info[NUM_ROAD_ENGINES];
 
 static inline const RailVehicleInfo* RailVehInfo(EngineID e)
 {

--- a/tunnelbridge_cmd.c	Wed Dec 14 20:45:12 2005 +0000
+++ b/tunnelbridge_cmd.c	Thu Dec 15 17:55:59 2005 +0000
@@ -55,6 +55,9 @@
 	{ 90, 2, 32, 510, 608, 0xA28 | PALETTE_TO_STRUCT_GREY    , STR_BRIDGE_TUBULAR_SILICON  , NULL, 0 }
 };
 
+Bridge _bridge[MAX_BRIDGES];
+
+
 // calculate the price factor for building a long bridge.
 // basically the cost delta is 1,1, 1, 2,2, 3,3,3, 4,4,4,4, 5,5,5,5,5, 6,6,6,6,6,6,  7,7,7,7,7,7,7,  8,8,8,8,8,8,8,8,
 int CalcBridgeLenCostFactor(int x)