extern void x11_close(Socket);
extern int x11_send(Socket, char *, int);
extern void *x11_invent_auth(char *, int, char *, int, int);
+extern void x11_free_auth(void *);
extern void x11_unthrottle(Socket s);
extern void x11_override_throttle(Socket s, int enable);
extern int x11_get_screen_number(char *display);