Index: obj_pstk_shape.h
===================================================================
--- obj_pstk_shape.h	(revision 32746)
+++ obj_pstk_shape.h	(revision 32747)
@@ -64,6 +64,7 @@
 		PCB_PSSH_HSHADOW             /* for clearance: pretend the shape is the same as the drill's or slot's; but do not add anything positive to the target layer */
 	} shape;
 	rnd_coord_t clearance;         /* per layer clearance: internal layer clearance is sometimes different for production or insulation reasons (IPC2221A) */
+	unsigned hconn:1;              /* shape is connected to hole/slot; this is abstract, it ignores plating and bbvia aspects */
 } pcb_pstk_shape_t;
 
 /* transformed prototype */
@@ -79,4 +80,8 @@
 void pcb_pstk_shape_rot(pcb_pstk_shape_t *sh, double sina, double cosa, double angle);
 void pcb_pstk_shape_smirror(pcb_pstk_shape_t *sh);
 
+/* Return whether shape1 in ps1 intersects with shape2 in ps2 (regardless
+   of layer positions) */
+rnd_bool_t pcb_pstk_shape_intersect(pcb_pstk_t *ps1, pcb_pstk_shape_t *shape1, pcb_pstk_t *ps2, pcb_pstk_shape_t *shape2);
+
 #endif