Index: trunk/src/gui_act.c
===================================================================
--- trunk/src/gui_act.c	(revision 5321)
+++ trunk/src/gui_act.c	(revision 5322)
@@ -841,7 +841,7 @@
 				pcb_crosshair.AttachedObject.Type = PCB_TYPE_ARC_POINT;
 				pcb_crosshair.AttachedObject.Ptr1 = ptr1;
 				pcb_crosshair.AttachedObject.Ptr2 = ptr2;
-				pcb_crosshair.AttachedObject.Ptr3 = NULL;
+				pcb_crosshair.AttachedObject.Ptr3 = pcb_arc_start_ptr;
 				goto switched;
 			}
 			if (close_enough(Note.X, b->X2) && close_enough(Note.Y, b->Y2)) {
@@ -848,7 +848,7 @@
 				pcb_crosshair.AttachedObject.Type = PCB_TYPE_ARC_POINT;
 				pcb_crosshair.AttachedObject.Ptr1 = ptr1;
 				pcb_crosshair.AttachedObject.Ptr2 = ptr2;
-				pcb_crosshair.AttachedObject.Ptr3 = 0x1;
+				pcb_crosshair.AttachedObject.Ptr3 = pcb_arc_end_ptr;
 				goto switched;
 			}
 		}
Index: trunk/src/obj_arc.c
===================================================================
--- trunk/src/obj_arc.c	(revision 5321)
+++ trunk/src/obj_arc.c	(revision 5322)
@@ -45,6 +45,8 @@
 #include "draw.h"
 #include "obj_arc_draw.h"
 
+static int pcb_arc_end_addr = 1;
+extern int *pcb_arc_start_ptr = NULL, pcb_arc_end_ptr = &pcb_arc_end_addr;
 
 pcb_arc_t *pcb_arc_alloc(pcb_layer_t * layer)
 {
Index: trunk/src/obj_arc.h
===================================================================
--- trunk/src/obj_arc.h	(revision 5321)
+++ trunk/src/obj_arc.h	(revision 5322)
@@ -76,6 +76,8 @@
 pcb_coord_t pcb_arc_length(const pcb_arc_t *arc);
 pcb_coord_t pcb_arc_area(const pcb_arc_t *arc);
 
+/* ptr3 values for start and end point */
+extern int *pcb_arc_start_ptr, pcb_arc_end_ptr;
 
 
 #define	pcb_arc_move(a,dx,dy)                                     \
Index: trunk/src/obj_arc_ui.c
===================================================================
--- trunk/src/obj_arc_ui.c	(revision 5321)
+++ trunk/src/obj_arc_ui.c	(revision 5322)
@@ -47,7 +47,7 @@
 	pcb_arc_t *arc = (pcb_arc_t *) pcb_crosshair.AttachedObject.Ptr2;
 	pcb_angle_t start = arc->StartAngle, delta = arc->Delta;
 
-	if (end_pt == NULL) {
+	if (end_pt == pcb_arc_start_ptr) {
 		double end2, new_delta, new_start = atan2(-(ch->Y - arc->Y), (ch->X - arc->X)) * 180.0 / M_PI + 180.0;
 
 		end2 = start + delta;
Index: trunk/src/search.c
===================================================================
--- trunk/src/search.c	(revision 5321)
+++ trunk/src/search.c	(revision 5322)
@@ -401,7 +401,7 @@
 	if (d < i->least) {
 		i->least = d;
 		*i->Arc = arc;
-		*i->arc_pt = 0;
+		*i->arc_pt = pcb_arc_start_ptr;
 		ret_val = PCB_R_DIR_FOUND_CONTINUE;
 	}
 
@@ -409,7 +409,7 @@
 	if (d < i->least) {
 		i->least = d;
 		*i->Arc = arc;
-		*i->arc_pt = 1;
+		*i->arc_pt = pcb_arc_end_ptr;
 		ret_val = PCB_R_DIR_FOUND_CONTINUE;
 	}
 	return ret_val;