Index: obj_arc_draw.h
===================================================================
--- obj_arc_draw.h	(revision 4627)
+++ obj_arc_draw.h	(revision 4628)
@@ -29,3 +29,5 @@
 
 void _draw_arc(ArcType * arc);
 void draw_arc(LayerType * layer, ArcType * arc);
+void EraseArc(ArcTypePtr Arc);
+void DrawArc(LayerTypePtr Layer, ArcTypePtr Arc);