pub unsafe extern "C" fn posix_spawnattr_setsigmask(
attr: *mut posix_spawnattr_t,
default: *const sigset_t,
) -> c_int
pub unsafe extern "C" fn posix_spawnattr_setsigmask(
attr: *mut posix_spawnattr_t,
default: *const sigset_t,
) -> c_int