funcref := get_EpollPwaitAddr()
	if funcptrtest(GetZosLibVec()+SYS_EPOLL_PWAIT<<4, "") == 0 {
		*funcref = impl_EpollPwait
	} else {
		*funcref = error_EpollPwait
	}
	return (*funcref)(epfd, events, msec, sigmask)
}

func error_EpollPwait(epfd int, events []EpollEvent, msec int, sigmask *int) (n int, err error) {
	n = -1
	err = ENOSYS
	return
}