#ifdef USE_GTK
extern int xg_set_icon (struct frame *, Lisp_Object);
-extern int xg_set_icon_from_xpm_data (struct frame *, const char**);
+extern int xg_set_icon_from_xpm_data (struct frame *, const char **);
#endif /* USE_GTK */
extern void x_implicitly_set_name (struct frame *, Lisp_Object, Lisp_Object);