Index: obj_poly_op.h
===================================================================
--- obj_poly_op.h	(revision 10753)
+++ obj_poly_op.h	(revision 10754)
@@ -45,5 +45,6 @@
 void *pcb_polyop_copy(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_polygon_t *Polygon);
 void *pcb_polyop_rotate90(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_polygon_t *Polygon);
 void *pcb_polyop_change_flag(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_polygon_t *Polygon);
+void *pcb_polyop_invalidate_label(pcb_opctx_t *ctx, pcb_polygon_t *poly);