Adding aio.h and mqueue.h

Joel Sherrill <[email protected]> Thu, 1 Dec 2022 10:37:18 -0600

Newsgroups	gmane.comp.lib.newlib
Message-ID	<CAF9ehCVCxWFy-=YXoOqvVEv7kcv1D1tvDW=4m3HOEEuy-MzY8w@mail.gmail.com>

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