preventing md5 mismatch errors from compression changes

[Andre Robatino]

Toshio Kuratomi <a.badger <at> gmail.com> writes:

> This could require different naames for the library too which will get a bit
> harder than just the binary name.

Sorry for the late reply. I just noticed the presence in Rawhide of the
xz-compat-libs package which provides the old compression with liblzma.so.0 in
addition to xz-libs providing the new compression with liblzma.so.5. (This was
also discussed in
http://lists.fedoraproject.org/pipermail/devel/2010-October/144651.html .) This
is great - however, applydeltarpm in Rawhide still fails with "md5 mismatch of
result" when the new RPM uses the old compression. Excuse my ignorance, but is
there some way to make it recognize the correct compression needed? I was hoping
to be able to generate functional deltaisos from F14 Final to various F15
milestones, but at this point it looks like it won't work (even when running
applydeltaiso on a system with the latest xz/deltarpm/deltaiso). If it could be
made to work, I could just document the procedure for temporarily updating the
necessary packages.