Bug#720188: kfreebsd: please implemente/expose waitid function & wait6 syscall

[Petr Salinger <Petr.Salinger@seznam.cz>]

> Recently in FreeBSD waitid was implemented[1] this includes:
> * waitid function, implemented via wait6 syscall
> * option flags WEXITED WTRAPPED added
>
> More details & patch in the PR linked.
>
> This is now available in prerelease FreeBSD 9.2 (I'm using 9.2-rc2). I
> have verified and tested that it works correctly for my needs.
>
> [1] http://www.freebsd.org/cgi/query-pr.cgi?pr=170346&cat=
>
> Can it please be added to eglibc as used by Debian/kFreeBSD ports? the
> 9.2 kernel is already available in Debian. (If possible in sid, or
> e.g. at least in experimental)
>
> I can help writting a patch, but I have no prior knoweledge in hacking eglibc.

It is planned, but (e)glibc 2.18 upload have to go first, due to changes 
of idtype_t values. See also 218_waitid* in
http://anonscm.debian.org/viewvc/glibc-bsd/trunk/glibc-ports/

We also have to provide (reasonable) fallback implementation
under wheezy kernels.

Petr