Index: shape.c
===================================================================
--- shape.c	(revision 33990)
+++ shape.c	(revision 33991)
@@ -477,7 +477,7 @@
 	double rot = 0.0, roundres = 1.0;
 	char *end;
 	pcb_shape_corner_t corner[4] = { PCB_CORN_ROUND, PCB_CORN_ROUND, PCB_CORN_ROUND, PCB_CORN_ROUND};
-	char *err;
+	const char *err;
 
 	if (argc < 2) {
 		rnd_message(RND_MSG_ERROR, "roundrect() needs at least one parameters\n");