Adding aio.h and mqueue.h

[Jeff Johnston]

As long as the licensing is shared-newlib-compatible (non-GPL), it should
be ok.

-- Jeff J.

On Thu, Dec 1, 2022 at 11:37 AM Joel Sherrill <joel@rtems.org> wrote:

> Hi
>
> We have migrated almost all of our POSIX defined header files from RTEMS
> itself to newlib.  I think aio.h and mqueue.h are the last POSIX headers
> left on our side.
>
> What's the feeling on merging these? Would it be ok to put them in
> newlib/libc/include?
>
> Our version of the headers have Doxygen comments. Would these be OK in
> newlib or do I need to remove the Doxygen?
>
> Thanks.
>
> --joel
>
>