Index: hid_cam.c
===================================================================
--- hid_cam.c	(revision 21406)
+++ hid_cam.c	(revision 21407)
@@ -356,7 +356,7 @@
 			if (parse_layer_type(curr, &lyt, &offs, &has_offs) != 0)
 				goto err;
 
-#warning TODO: extend the syntax for purpose
+TODO("extend the syntax for purpose")
 			parse_layer_supplements(spk, spv, spc, &purpose, &xf, &xf_);
 
 			vl = pcb_vlayer_get_first(lyt, purpose, -1);