Index: trunk/src/find.h
===================================================================
--- trunk/src/find.h	(revision 30850)
+++ trunk/src/find.h	(revision 30851)
@@ -46,6 +46,7 @@
 	/* low level (will work with isc calls): */
 	pcb_coord_t bloat;              /* perform intersection tests with one object bloated up by this amount (can be negative for shrinking) */
 	unsigned ignore_clearance:1;    /* a flag dictated clearance is no excuse for intersection - useful for overlap calculation between objects on different layers */
+	unsigned allow_noncopper_pstk:1;/* when 1, even non-copper shapes of padstacks will "conduct" in a pstk-pstk check (useful for the drc) */
 
 	/* high level (ignored by isc calls): */
 	unsigned stay_layergrp:1;       /* do not leave the layer (no padstack hop) */
Index: trunk/src/find_geo.c
===================================================================
--- trunk/src/find_geo.c	(revision 30850)
+++ trunk/src/find_geo.c	(revision 30851)
@@ -1218,7 +1218,7 @@
 		pcb_pstk_shape_t *shape2, *slshape2 = NULL, sltmp2;
 		pcb_layer_type_t lyt = pcb_layer_flags_(ly);
 
-		if (!(lyt & PCB_LYT_COPPER)) /* consider only copper for connections */
+		if (!ctx->allow_noncopper_pstk && !(lyt & PCB_LYT_COPPER)) /* consider only copper for connections */
 			continue;
 
 		shape1 = pcb_pstk_shape_at(PCB, ps1, ly);