-static gboolean read_int(XrmDatabase db, gchar *rname, gint *value);
-static gboolean read_string(XrmDatabase db, gchar *rname, gchar **value);
-static gboolean read_color(XrmDatabase db, gchar *rname,
+static gboolean read_int(XrmDatabase db, const gchar *rname, gint *value);
+static gboolean read_string(XrmDatabase db, const gchar *rname,
+ const gchar **value);
+static gboolean read_color(XrmDatabase db, const gchar *rname,