Index: trunk/src/board.c
===================================================================
--- trunk/src/board.c	(revision 32258)
+++ trunk/src/board.c	(revision 32259)
@@ -411,17 +411,6 @@
 	return chg;
 }
 
-TODO("Move this to layer_grp.[ch]")
-const char *pcb_layergrp_thickness_attr(pcb_layergrp_t *grp, const char *namespace)
-{
-	const char *s = NULL;
-	if (namespace != NULL)
-		s = pcb_attribute_get_namespace(&grp->Attributes, namespace, "thickness");
-	if (s == NULL)
-		s = pcb_attribute_get(&grp->Attributes, "thickness");
-	return s;
-}
-
 rnd_coord_t pcb_stack_thickness(pcb_board_t *pcb, const char *namespace, pcb_board_thickness_flags_t flags, rnd_layergrp_id_t from, rnd_bool include_from, rnd_layergrp_id_t to, rnd_bool include_to, pcb_layer_type_t accept)
 {
 	rnd_layergrp_id_t gid;
Index: trunk/src/layer_grp.c
===================================================================
--- trunk/src/layer_grp.c	(revision 32258)
+++ trunk/src/layer_grp.c	(revision 32259)
@@ -1584,3 +1584,13 @@
 			return 1;
 	return 0;
 }
+
+const char *pcb_layergrp_thickness_attr(pcb_layergrp_t *grp, const char *namespace)
+{
+	const char *s = NULL;
+	if (namespace != NULL)
+		s = pcb_attribute_get_namespace(&grp->Attributes, namespace, "thickness");
+	if (s == NULL)
+		s = pcb_attribute_get(&grp->Attributes, "thickness");
+	return s;
+}
Index: trunk/src/layer_grp.h
===================================================================
--- trunk/src/layer_grp.h	(revision 32258)
+++ trunk/src/layer_grp.h	(revision 32259)
@@ -300,4 +300,9 @@
 /* Return true if the board has an outline layer with at least one object on it */
 rnd_bool pcb_has_explicit_outline(pcb_board_t *pcb);
 
+/* Return the thickness attribute of a layer group, optionally considering
+   the namespace based override attribute, when present; returns NULL if
+   attribute is not found. */
+const char *pcb_layergrp_thickness_attr(pcb_layergrp_t *grp, const char *namespace);
+
 #endif