--- rxvt-unicode/src/rxvt.h	2010/05/23 00:37:19	1.409
+++ rxvt-unicode/src/rxvt.h	2010/07/19 16:43:21	1.410
@@ -1310,6 +1310,7 @@
   void window_calc (unsigned int newwidth, unsigned int newheight);
   bool set_fonts ();
   void set_string_property (Atom prop, const char *str, int len = -1);
+  void set_mbstring_property (Atom prop, const char *str, int len = -1);
   void set_utf8_property (Atom prop, const char *str, int len = -1);
   void set_title (const char *str);
   void set_icon_name (const char *str);