// not possible here because we must return a c_int because that's what Unix (including
// SuS and POSIX) say a wait status is, but Fuchsia apparently uses a u64, so it won't
// necessarily fit.
//
// It seems to me that the right answer would be to provide std::os::fuchsia with its
// own ExitStatusExt, rather that trying to provide a not very convincing imitation of
// not possible here because we must return a c_int because that's what Unix (including
// SuS and POSIX) say a wait status is, but Fuchsia apparently uses a u64, so it won't
// necessarily fit.
//
// It seems to me that the right answer would be to provide std::os::fuchsia with its
// own ExitStatusExt, rather that trying to provide a not very convincing imitation of