--- a/vehicle.h	Wed Jan 04 16:53:00 2006 +0000
+++ b/vehicle.h	Wed Jan 04 20:18:39 2006 +0000
@@ -317,6 +317,7 @@
 int CheckTrainStoppedInDepot(const Vehicle *v);
 
 bool VehicleNeedsService(const Vehicle *v);
+void ConvertOldMultiheadToNew(void);
 
 typedef struct GetNewVehiclePosResult {
 	int x,y;