Bug#1003176: transition: perl 5.34

[Sebastian Ramacher <sramacher@debian.org>]

On 2022-02-10 15:19:57, Alex wrote:
> On donderdag 10 februari 2022 14:59:59 CET Paul Gevers wrote:
> > > The "collectd" package recommends libperl5.34 as it has a loadable
> > > module built against libperl5.34. The transition criteria however
> > > will not consider rebuilding the package even though in the
> > > current state in unstable it is broken for any practical usage. The
> > > module still loads, as libperl5.32 is still present, but the
> > > executed perl code fails on lots of missing packages as their 5.32
> > > version is already replaced with the 5.34 version.
> >
> >
> > Hmm, I *think* libperl* is co-installable on purpose,
> 
> Probably, but that's only useful if the perl script doesn't use any
> modules with compiled code.
> 
> 
> 
> > so if stuff
> > breaks, is it because you expect more than you ask for or because you
> > also link against other packages that link against the latest
> > version and you get symbols double
> 
> I'm not compiling anything, just trying to run a script which uses
> "HTML::Parser" via an embedded perl interpreter in collectd.
> 
> 
> 
> > (I am not sure if I use the right
> > terminology, but I hope you understand what I mean)? Do you know?
> 
> I don't think I do, unfortunately.
> 
> 
> Because the collectd perl plugin is linked against libperl5.32, my
> script fails as libhtml-parser-perl is already upgraded to 5.34.
> 
> I agree that package dependencies probably won't be able to solve this,
> but that's not the message I'm trying to convey.
> 
> The issue is that in order for my script to work again, I must wait
> until collectd is recompiled against libperl5.34. Because of the
> criteria/conditions in the transition, this won't happen automatically
> as collectd only has a recommends against libperl5.32, not a depends.
> 
> I think in case of a recommends on a _library_, it is warranted to
> trigger a rebuild too, as recommends on libraries mostly implies that it
> will be dl-opened instead of linked. And dl-opended libraries have the
> same versioning constraints as directly linked ones.
> 
> Hence my request to add "recommends ~ libperl5.43" to the transition
> criteria.

The tracker is mostly a copy of trackers that we used for other perl
transitions. I don't remember Packages that only recommend libperlX
being a problem for perl transitions.

The tracker now also checks for recommends and I have binNMUed collectd.

Cheers

> --
> mvg,
> 
> Alex Hermann
> 

-- 
Sebastian Ramacher