Index: obj_arc_op.h
===================================================================
--- obj_arc_op.h	(revision 31320)
+++ obj_arc_op.h	(revision 31321)
@@ -52,6 +52,7 @@
 void *pcb_arcop_rotate(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_arc_t *Arc);
 void *pcb_arcop_change_flag(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_arc_t *Arc);
 void *pcb_arcop_invalidate_label(pcb_opctx_t *ctx, pcb_layer_t *layer, pcb_arc_t *arc);
+void *pcb_arcop_change_thermal(pcb_opctx_t *ctx, pcb_layer_t *ly, pcb_arc_t *arc);
 
 
 void *pcb_arc_insert_point(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_arc_t *arc);