struct sigaction sa = {.sa_flags = SA_RESTART, .sa_handler = SIG_IGN};
	sigemptyset(&sa.sa_mask);

	signal(SIGPIPE, SIG_IGN);

	sigaction(SIGPIPE, &sa, NULL);

	struct sigaction sa_term = {.sa_flags = SA_RESTART, .sa_handler = quitsignal};
	struct sigaction sa_sigchld = {
#ifdef XWAYLAND
		.sa_flags = SA_RESTART,
		.sa_handler = sigchld,
#else
		.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART,
		.sa_handler = SIG_IGN,
#endif
	};
	sigemptyset(&sa_term.sa_mask);
	sigemptyset(&sa_sigchld.sa_mask);

#ifdef XWAYLAND
	sigchld(0);
#else
	signal(SIGCHLD, SIG_IGN);
#endif
	signal(SIGINT, quitsignal);
	signal(SIGTERM, quitsignal);

	sigaction(SIGCHLD, &sa_sigchld, NULL);
	sigaction(SIGINT, &sa_term, NULL);
	sigaction(SIGTERM, &sa_term, NULL);

	 *     signal(SIGCHLD, SIG_IGN);

	 *     struct sigaction sa = {.sa_handler = SIG_IGN};
	 *     sigaction(SIGCHLD, &sa, NULL);

	if (signal(SIGCHLD, sigchld) == SIG_ERR)
		die("can't install SIGCHLD handler:");