Copy packages to same PPA, different distro
On 2008-05-28 00:29:57 +0200, Pau Garcia i Quiles wrote:
> Quoting Michael Bienia <firstname.lastname@example.org>:
> > On 2008-05-26 21:59:02 +0200, Pau Garcia i Quiles wrote:
> >> Not necessarily. If I build for Gutsy but the library breaks ABI
> >> compatibility in Hardy, the Gutsy binary won't work in Hardy (and of
> >> course the Hardy binary won't work on Gutsy, either).
> > If the ABI of a library changes then it must get a new package name to
> > make sure that upgrades work. Without the renaming you would get the
> > problem you describe.
> > If you try to install in such case the deb from Gutsy on Hardy, it will
> > fail due to unmet/broken dependencies.
> You are only partially right. If the ABI changes you should increase
> the soversion, not rename the package. Changing the package name
> should only be done if upstream or the Debian package is so broken
> that increasing the soversion is impossible.
I was perhaps a little bit unprecise. As the soversion is usually included
in the package name, increasing the soversion leads also to a new
libfoo.so.1 gets packaged as libfoo1. After an ABI change the soversion
gets incremented to 2. The library is now called libfoo.so.2 which is
now packaged as libfoo2.
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