[PATCH] [round 3] Upstreaming Debian patches

Hello,

After having spent quite a bit of time in getting the Debian package
into better shape and fixing a lot of bugs (especially on weird
architectures), I've now prepared all the patches in the current
Debian package that should go upstream into dietlibc itself.

I've curated them under the following address (29 patches in total):

  https://iwakd.de/dietlibc-patches/

If you'd prefer a different form for convenience, just ask.

Rough summary of the changes:

 - all changes I submitted in "round 2" are contained, I replaced my
   own TLS register patch with Enrico's variant though

 - A lot of bug fixes, both generic and for multiple architectures
   Most of the bugs I fixed there I found after enabling more unit
   tests during the build process of the Debian package.

 - Ports of dietlibc to the following architectures:
      - powerpcspe (I ported the softfpu stuff from glibc)
      - ppc64le (LE variant of ppc64, code by myself)
      - mips64 (tested on LE only, code by myself)
      - aarch64, i.e. arm64 (code by myself)

All patches are based on the latest code in the CVS repository.

I would really appreciate it if you could apply these patches in
dietlibc upstream.

Thanks!

Regards,
Christian