extern void bgp_timer_set(struct peer *);
extern int bgp_routeadv_timer(struct thread *);
extern void bgp_fsm_change_status(struct peer *peer, int status);
-extern const char *peer_down_str[];
+extern const char *const peer_down_str[];
extern void bgp_update_delay_end(struct bgp *);
extern void bgp_maxmed_update(struct bgp *);
extern int bgp_maxmed_onstartup_configured(struct bgp *);