On Sat, Jan 28, 2023 at 02:14:58AM -0600, Bruno Wolff III wrote:
> On Fri, Jan 27, 2023 at 18:43:56 -0800,
>  Gordon Messmer <gordon.mess...@gmail.com> wrote:
> >
> >Second, I'd like to suggest that in the future, at least in
> >Fedora, for any "install" or "update" operation that dnf performs,
> >dnf's default behavior should be checking all of the direct and
> >indirect dependencies of the packages being installed (or updated)
> >and updating any dependencies which have updates available.
> >
> >Does anyone else have any opinions on the subject?  Should I
> >simply file a bug against dnf proposing this behavior?
> 
> If there is a problem with not uodating dependencies when you do an
> install or an update on selected packages, the packages dependencies
> are not properly defined.

You're correct, but ...

It's quite often the case that updates fail because of a missing
symbol in some library that wasn't updated.  I think this even happens
if you're using symbol versioning, but in any case many libraries
don't use symbol versioning[1].

Gordon's suggestion is a pretty good one for fixing this common
problem without making developers add full ">= version" dependencies
to every BuildRequires line in every package they maintain.

> I think the case where you don't want to keep the full system up to
> date, but a selective update or install causes problems as well is
> pretty rare. I think it might be reasonable to have an option that
> requests doing a recursive update. I would consider this to be a low
> priority feature request that has to compete with all of the other
> work being done on dnf, rather than a bug. I don't work on dnf and
> the people that do might feel differently.

Not really that rare.  I do this all the time.  Especially useful when
keeping a system "mainly" on a Fedora release, but selectively testing
Rawhide packages.

Rich.

[1] https://www.berrange.com/posts/2011/01/13/versioning-in-the-libvirt-library/

-- 
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