--- a/src/gui.h	Mon May 21 17:19:01 2007 +0000
+++ b/src/gui.h	Mon May 21 21:58:31 2007 +0000
@@ -46,7 +46,7 @@
 void ShowOrdersWindow(const Vehicle *v);
 
 /* road_gui.cpp */
-void ShowBuildRoadToolbar();
+void ShowBuildRoadToolbar(RoadType roadtype);
 void ShowBuildRoadScenToolbar();
 void ShowRoadVehViewWindow(const Vehicle *v);