On Mon, Mar 7, 2022 at 2:15 PM Miro Hrončok <mhroncok@xxxxxxxxxx> wrote:
>
> On 07. 03. 22 19:30, Fabio Valentini wrote:
> > On Mon, Mar 7, 2022 at 7:22 PM Chris Adams <linux@xxxxxxxxxxx> wrote:
> >>
> >> Once upon a time, Ben Cotton <bcotton@xxxxxxxxxx> said:
> >>> == Summary ==
> >>>
> >>> Package maintainers are encouraged to actively stop building their
> >>> packages for i686, especially if supporting this architecture requires
> >>> significant investment of time or resources, for no benefit. This will
> >>> not apply to packages which are still depended on by other i686
> >>> packages, or which get used in a "multilib" context (i.e. for running
> >>> 32-bit applications on x86_64).
> >>
> >> It's unclear what this actually means for packagers. Should
> >> ExcludeArch: lines be added to spec files?
> >
> > Ah, yes, thanks for catching that. This was indeed my intention:
> > Packagers add "ExcludeArch: %{ix86}" to the package in question, if it
> > is safe to do so (unused / leaf packages only).
> > I forgot to add that detail to the proposal, will add it now.
> >
> > As far as I can tell, any approach more sophisticated than that (like
> > automatically determining the i686 packages we *need*) would require
> > significantly more work, and probably be more error-prone, introduce
> > more friction, and make it harder to revert errors.
>
> This begs several questions that would probably need to be clarified e.g. in
> the packaging guidelines. For example:
>
> ------
>
> I am adding a brand new package to multiple Fedora releases. The package is not
> noarch. It successfully builds on i686. What am I supposed to do?
>
> a) build it on i686, until it fails there
> b) excludearch %ix86 right away not to create a dead dep tree
> c) excludearch %ix86 on F37+ only, as this is a F37 change
>
> -------
>
> I am updating a package that no longer builds on i686. How do I know if I can
> exclude it safely? What checks do I run? Am I allowed to push this update to
> stable Fedora releases?
>
> -------
>
> My package is noarch but has multiple arched dependencies. How do I properly
> make Koji not attempt to build it on i686?
>
A simpler solution would be to just default-off i686 and check-in some
marker file that indicates the package needs to be built for multilib.
This is how openSUSE does it today with the baselibs.conf file:
https://code.opensuse.org/package/fdk-aac-free/blob/master/f/baselibs.conf
--
真実はいつも一つ！/ Always, there's only one truth!
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