ENOTSOCK        Errno = 57
	ENOTSUP         Errno = 58
	ENOTTY          Errno = 59
	ENXIO           Errno = 60
	EOVERFLOW       Errno = 61
	EOWNERDEAD      Errno = 62
	EPERM           Errno = 63
	EPIPE           Errno = 64
	EPROTO          Errno = 65
	EPROTONOSUPPORT Errno = 66
	EPROTOTYPE      Errno = 67
	ERANGE          Errno = 68
	EROFS           Errno = 69
	ESPIPE          Errno = 70
	ESRCH           Errno = 71

			}

			int fd[2];
			if (pipe(fd) != 0) {
				printf("pipe(2) failed\n");
				return 0;
			}
			// Close the reading end.
			close(fd[0]);
			// Expect that write(2) fails (EPIPE)
			if (write(fd[1], "some data", 9) != -1) {
				printf("write(2) unexpectedly succeeded\n");
				return 0;
			}
			printf("did not receive SIGPIPE\n");
			return 0;
		}
		case 4: {
			fprintf(stderr, "OK\n");

			// will wake up a goroutine waiting to write;
			// that goroutine will try the write again,
			// and the appropriate thing will happen based
			// on what that write returns (success, EPIPE, EAGAIN).
			if ev.flags&_EV_EOF != 0 {
				mode += 'w'
			}
		case _EVFILT_WRITE:
			mode += 'w'
		}
		if mode != 0 {
			var pd *pollDesc
			var tag uintptr
			if goarch.PtrSize == 4 {

		if err != EINTR {
			break
		}
	}
	Close(p[0])
	if err != nil || n != 0 {
		if n == int(unsafe.Sizeof(err1)) {
			err = Errno(err1)
		}
		if err == nil {
			err = EPIPE
		}

		// Child failed; wait for it to exit, to make sure
		// the zombies don't accumulate.
		_, err1 := Wait4(pid, &wstatus, 0, nil)
		for err1 == EINTR {
			_, err1 = Wait4(pid, &wstatus, 0, nil)
		}