Index: trunk/src/draw.h
===================================================================
--- trunk/src/draw.h	(revision 19377)
+++ trunk/src/draw.h	(revision 19378)
@@ -126,7 +126,7 @@
 int pcb_draw_layer_is_comp(pcb_layer_id_t lay_id);
 
 /* Returns whether a group is composite-drawn */
-int pcb_draw_layergrp_is_comp(pcb_layergrp_t *g);
+int pcb_draw_layergrp_is_comp(const pcb_layergrp_t *g);
 
 /* Draw (render) or invalidate a terminal label */
 void pcb_term_label_draw(pcb_coord_t x, pcb_coord_t y, double scale, pcb_bool vert, pcb_bool centered, const char *lab, int intconn);
Index: trunk/src/draw_composite.c
===================================================================
--- trunk/src/draw_composite.c	(revision 19377)
+++ trunk/src/draw_composite.c	(revision 19378)
@@ -31,7 +31,7 @@
 
 typedef struct comp_ctx_s {
 	pcb_draw_info_t *info;
-	pcb_layergrp_t *grp;
+	const pcb_layergrp_t *grp;
 	pcb_layergrp_id_t gid;
 	const char *color;
 
@@ -146,7 +146,7 @@
 		comp_start_add(ctx);
 }
 
-int pcb_draw_layergrp_is_comp(pcb_layergrp_t *g)
+int pcb_draw_layergrp_is_comp(const pcb_layergrp_t *g)
 {
 	int n;
 
Index: trunk/src/draw_ly_spec.c
===================================================================
--- trunk/src/draw_ly_spec.c	(revision 19377)
+++ trunk/src/draw_ly_spec.c	(revision 19378)
@@ -197,7 +197,7 @@
 {
 	int count = 0;
 	pcb_layergrp_id_t gid, goutid;
-	pcb_layergrp_t *g, *goutl = NULL;
+	const pcb_layergrp_t *g, *goutl = NULL;
 	pcb_layer_t *uslot = NULL, *pslot = NULL;
 	int uscore = 0, pscore = 0;
 	int plated, unplated;