[BUG?] MSG_DONTWAIT/MSG_NOSIGNAL not defined

> My group is evaluating the effort to make our application compliant =
with LSB 1.3, using lsbappchk etc.
>=20
> The subject send() flags are not defined when lsbcc is used, and =
generate compile errors -- are these non-standard in the LSB?
>=20
> Thanks,
> Tim