timevaladd
void timevaladd(struct timeval *t1, const struct timeval *t2);
extern void timevaladd(struct timeval *, struct timeval *);
timevaladd(&nextmcast, &now);
extern void timevaladd(struct timeval *, struct timeval *);
timevaladd(&no_flash, &now);
timevaladd(&ifp->int_rdisc_timer, &now);
timevaladd(&ifp->int_rdisc_timer, &now);
timevaladd(&aitv.it_value, &now);
timevaladd(valp, &interval2nth);
timevaladd(&interval2nth, &interval2nth);
extern void timevaladd(struct timeval *, struct timeval *);