--- a/src/rail.h	Wed Mar 19 20:46:56 2008 +0000
+++ b/src/rail.h	Wed Mar 19 20:50:19 2008 +0000
@@ -181,6 +181,7 @@
 void DrawTrainDepotSprite(int x, int y, int image, RailType railtype);
 void DrawDefaultWaypointSprite(int x, int y, RailType railtype);
 void *EnsureNoTrainOnTrackProc(Vehicle *v, void *data);
+int TicksToLeaveDepot(const Vehicle *v);
 
 /**
  * Draws overhead wires and pylons for electric railways.