--- a/src/newgrf_engine.h	Wed Apr 30 07:39:46 2008 +0000
+++ b/src/newgrf_engine.h	Wed Apr 30 17:42:08 2008 +0000
@@ -59,4 +59,6 @@
 void AlterRailVehListOrder(EngineID engine, EngineID target);
 void CommitRailVehListOrderChanges();
 
+EngineID GetNewEngineID(const GRFFile *file, VehicleType type, uint16 internal_id);
+
 #endif /* NEWGRF_ENGINE_H */