Bill Nottingham <notting <at> redhat.com> writes:
> Just to note, if you fix multiarch conflicts by moving libraries to
> a -libs package, your new -libs package should obsolete the older
> versions of the package where the libraries came from. This is so
> that yum upgrades work properly.
This hack is a bad idea, it breaks APT-RPM! (Even for non-multilib systems!)
I just tested this hack with a dummy package: I have installed a package called
multilib-obsoletes-test Version: 1, Release: 1, then put 1-2 into a test repo
(created just for this purpose), with a -libs subpackage which obsoletes
multilib-obsoletes-test < 1-2. This confuses apt-get dist-upgrade, which reacts
the following way:
The following packages have been kept back
multilib-obsoletes-test (1-1 => 1-2)
In other words, it gets confused by the hack, and it won't update the package
at all!
Doing apt-get install multilib-obsoletes-test or apt-get install
multilib-obsoletes-test-libs by hand will do the right thing, but breaking the
dist-upgrade is bad.
An if the packager used this idiom:
Obsoletes: %{name} < %{?epoch:%{epoch}:}%{version}-%{release}
i.e. is bumping the Obsoletes with each release, then EVERY SINGLE UPGRADE of
the affected package with apt-rpm will break!
Please test your hacks with apt and smart too.
Kevin Kofler
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