ENOTNAM         = syscall.Errno(0x76)
	ENOTRECOVERABLE = syscall.Errno(0x83)
	ENOTSOCK        = syscall.Errno(0x58)
	ENOTSUP         = syscall.Errno(0x5f)
	ENOTUNIQ        = syscall.Errno(0x4c)
	EOPNOTSUPP      = syscall.Errno(0x5f)
	EOVERFLOW       = syscall.Errno(0x4b)
	EOWNERDEAD      = syscall.Errno(0x82)
	EPFNOSUPPORT    = syscall.Errno(0x60)
	EPROTO          = syscall.Errno(0x47)

	ENOTNAM         = syscall.Errno(0x89)
	ENOTRECOVERABLE = syscall.Errno(0xa6)
	ENOTSOCK        = syscall.Errno(0x5f)
	ENOTSUP         = syscall.Errno(0x7a)
	ENOTUNIQ        = syscall.Errno(0x50)
	EOPNOTSUPP      = syscall.Errno(0x7a)
	EOVERFLOW       = syscall.Errno(0x4f)
	EOWNERDEAD      = syscall.Errno(0xa5)
	EPFNOSUPPORT    = syscall.Errno(0x7b)
	EPROTO          = syscall.Errno(0x47)

	ENOTNAM         = syscall.Errno(0x89)
	ENOTRECOVERABLE = syscall.Errno(0xa6)
	ENOTSOCK        = syscall.Errno(0x5f)
	ENOTSUP         = syscall.Errno(0x7a)
	ENOTUNIQ        = syscall.Errno(0x50)
	EOPNOTSUPP      = syscall.Errno(0x7a)
	EOVERFLOW       = syscall.Errno(0x4f)
	EOWNERDEAD      = syscall.Errno(0xa5)
	EPFNOSUPPORT    = syscall.Errno(0x7b)
	EPROTO          = syscall.Errno(0x47)

		if err == ENOSYS {
			// fchmodat2 isn't available. If the flags are known to be valid,
			// return EOPNOTSUPP to indicate that fchmodat doesn't support them.
			if flags&^(_AT_SYMLINK_NOFOLLOW|_AT_EMPTY_PATH) != 0 {
				return EINVAL
			} else if flags&(_AT_SYMLINK_NOFOLLOW|_AT_EMPTY_PATH) != 0 {
				return EOPNOTSUPP
			}
		}
		return err
	}
	return fchmodat(dirfd, path, mode)
}

	ENOTNAM         = syscall.Errno(0x76)
	ENOTRECOVERABLE = syscall.Errno(0x85)
	ENOTSOCK        = syscall.Errno(0x26)
	ENOTSUP         = syscall.Errno(0x2d)
	ENOTUNIQ        = syscall.Errno(0x73)
	EOPNOTSUPP      = syscall.Errno(0x2d)
	EOVERFLOW       = syscall.Errno(0x5c)
	EOWNERDEAD      = syscall.Errno(0x84)
	EPFNOSUPPORT    = syscall.Errno(0x2e)
	EPROCLIM        = syscall.Errno(0x43)

	ENOTNAM         = syscall.Errno(0x76)
	ENOTRECOVERABLE = syscall.Errno(0x83)
	ENOTSOCK        = syscall.Errno(0x58)
	ENOTSUP         = syscall.Errno(0x5f)
	ENOTUNIQ        = syscall.Errno(0x4c)
	EOPNOTSUPP      = syscall.Errno(0x5f)
	EOVERFLOW       = syscall.Errno(0x4b)
	EOWNERDEAD      = syscall.Errno(0x82)
	EPFNOSUPPORT    = syscall.Errno(0x60)
	EPROTO          = syscall.Errno(0x47)

	ENOTNAM         = syscall.Errno(0x76)
	ENOTRECOVERABLE = syscall.Errno(0x83)
	ENOTSOCK        = syscall.Errno(0x58)
	ENOTSUP         = syscall.Errno(0x5f)
	ENOTUNIQ        = syscall.Errno(0x4c)
	EOPNOTSUPP      = syscall.Errno(0x5f)
	EOVERFLOW       = syscall.Errno(0x4b)
	EOWNERDEAD      = syscall.Errno(0x82)
	EPFNOSUPPORT    = syscall.Errno(0x60)
	EPROTO          = syscall.Errno(0x47)

	ENOTNAM         = syscall.Errno(0x76)
	ENOTRECOVERABLE = syscall.Errno(0x83)
	ENOTSOCK        = syscall.Errno(0x58)
	ENOTSUP         = syscall.Errno(0x5f)
	ENOTUNIQ        = syscall.Errno(0x4c)
	EOPNOTSUPP      = syscall.Errno(0x5f)
	EOVERFLOW       = syscall.Errno(0x4b)
	EOWNERDEAD      = syscall.Errno(0x82)
	EPFNOSUPPORT    = syscall.Errno(0x60)
	EPROTO          = syscall.Errno(0x47)

	EDESTADDRREQ       = Errno(1106)
	EMSGSIZE           = Errno(1107)
	EPROTOTYPE         = Errno(1108)
	ENOPROTOOPT        = Errno(1109)
	EPROTONOSUPPORT    = Errno(1110)
	ESOCKTNOSUPPORT    = Errno(1111)
	EOPNOTSUPP         = Errno(1112)
	EPFNOSUPPORT       = Errno(1113)
	EAFNOSUPPORT       = Errno(1114)
	EADDRINUSE         = Errno(1115)
	EADDRNOTAVAIL      = Errno(1116)
	ENETDOWN           = Errno(1117)