Index: obj_arc.h
===================================================================
--- obj_arc.h	(revision 38423)
+++ obj_arc.h	(revision 38424)
@@ -68,8 +68,8 @@
 void pcb_arc_flip_side(pcb_layer_t *layer, pcb_arc_t *arc);
 void pcb_arc_scale(pcb_arc_t *arc, double sx, double sy, double sth);
 rnd_box_t pcb_arc_mini_bbox(const pcb_arc_t *arc);
+rnd_box_t pcb_arc_bbox_cline(const pcb_arc_t *Arc); /* bounding box of the centerline */
 
-
 /*** hash and eq ***/
 int pcb_arc_eq(const pcb_host_trans_t *tr1, const pcb_arc_t *a1, const pcb_host_trans_t *tr2, const pcb_arc_t *a2);
 unsigned int pcb_arc_hash(const pcb_host_trans_t *tr, const pcb_arc_t *a);