clock_settime
int clock_settime(clockid_t, const struct timespec *)
int clock_settime(clockid_t, const struct timespec50 *);
__warn_references(clock_settime,
__weak_alias(clock_settime, _clock_settime)
clock_settime(clockid_t clockid, const struct timespec50 * tim50)
__weak_alias(clock_settime,rump___sysimpl_clock_settime50);
ATF_REQUIRE(clock_settime(CLOCK_REALTIME, &now) == 0);
ATF_REQUIRE(clock_settime(CLOCK_REALTIME, &now) == 0);