--- marker.xpm.orig	1998-11-20 09:16:30.000000000 -0800
+++ marker.xpm	2011-01-19 09:32:52.000000000 -0800
@@ -1,5 +1,5 @@
 /* XPM */
-static char * marker_xpm[] = {
+static const char * marker_xpm[] = {
 "7 7 3 1",
 " 	c None",
 ".	c #000000",