FTBFS on armhf in the release pocket

[Simon Quigley]

It seems as if this is not supported on 32-bit architectures.

Long-term, we should either enable support for armhf, or disable the build on armhf entirely.

[Till Kamppeter (till-kamppeter)]

Gutenprint actually works on 32-bit. The Debian package is blocked for 32-bit via "architecture-is-64-bit" pseudo package (from architecture-properties) in "build-depends:". I have removed this entry for the Ubuntu package now, to that it gets built on 32-bit (currently only armhf).

Entry of the introduction of the 32-bit exclusion in debian/changelog:

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gutenprint (5.3.4.20220624T01008808d602-2) unstable; urgency=medium

  * do not build this package on 32bit architectures anymore
    Closes: #1064088
    Closes: #1064089
    There was no patch attached to #1064089, so I can not reproduce the
    problems mentioned in #1064088. I am fed up with this poorly done
    transition, so I won't spend more time with this. Sorry 32bit people.

 -- Thorsten Alteholz <email address hidden> Fri, 26 Apr 2024 23:10:00 +0200
-----

[Simon Quigley (tsimonq2)]

Thank you, Till! :)

[Jeremy Bícha (jbicha)]

I am skeptical about this bug. There is a very long list of packages that no longer build on 32-bit architectures, much longer than attached to this bug. And I don't think Launchpad copes well with bugs with extremely long lists of affected packages.

You wrote "Long-term, we should either enable support for armhf, or disable the build on armhf entirely." But a Build-Depends on architecture-is-64-bit like gutenprint had is disabling the build on armhf entirely.

gutenprint was a very special case where the plan was to re-enable support for armhf after Debian Trixie's release but before Ubuntu 26.04 LTS's release.

[Launchpad Janitor (janitor)]

This bug was fixed in the package gutenprint - 5.3.4.20220624T01008808d602-4ubuntu1

---------------
gutenprint (5.3.4.20220624T01008808d602-4ubuntu1) plucky; urgency=medium

  * Re-enable 32-bit support for Ubuntu, removing "architecture-is-64-bit"
    from "Build-Depends:" (LP: #2099865, LP: #2081090).

 -- Till Kamppeter <email address hidden> Mon, 24 Feb 2025 19:28:08 +0100

[Erich Eickmeyer (eeickmeyer)]

blender no longer supports 32-bit.

[Jeremy Bícha (jbicha)]

I'm guessing the actual problem you are trying to solve is that http://qa.ubuntuwire.org/ftbfs/ has hundreds of packages in depwait on armhf?

I don't think you can solve that with Launchpad bugs and I think it adds clutter to http://qa.ubuntuwire.org/ftbfs/

Debian Developers are using Build-Depends: architecture-is-64-bit because this isn't built natively into the .deb package format yet. The alternative there is to specify the specific 64-bit architectures to build on, but this requires manual fixing when Debian bootstraps new architectures and the Debian Developers would rather use a simpler solution that will keep working.