Index: gtkhid-cairo.c
===================================================================
--- gtkhid-cairo.c	(revision 19117)
+++ gtkhid-cairo.c	(revision 19118)
@@ -208,7 +208,7 @@
 	priv->cr = priv->cr_target;
 }
 
-static int ghid_cairo_set_layer_group(pcb_layergrp_id_t group, pcb_layer_id_t layer, unsigned int flags, int is_empty)
+static int ghid_cairo_set_layer_group(pcb_layergrp_id_t group, const char *purpose, int purpi, pcb_layer_id_t layer, unsigned int flags, int is_empty)
 {
 	int idx = group;
 	if (idx >= 0 && idx < pcb_max_group(PCB)) {