File my_gdk_rgba_parse_void.patch of Package screen-message

--- screen-message-0.25/sm.c.back	2019-09-28 14:16:10.431541670 +0200
+++ screen-message-0.25/sm.c	2019-09-28 14:16:46.543670556 +0200
@@ -281,7 +281,7 @@
 	printf("%s\n", PACKAGE_STRING);
 }
 
-gboolean my_gdk_rgba_parse (GdkRGBA *rgba, const gchar *spec) {
+static void my_gdk_rgba_parse (GdkRGBA *rgba, const gchar *spec) {
 	gboolean ret = gdk_rgba_parse(rgba, spec);
 	if (!ret)  {
 	    fprintf (stderr, "Failed to parse color specification %s\n", spec);