dpkg >= 1.18.11 dropped the --print-installation-architecture option as
obsolete, causing dpkg-checkdeps to throw an error on start. The
attached patch replaces that call with 'dpkg --print-architecture' instead.

The exact error looks like this:

dpkg: error: unknown option --print-installation-architecture

Type dpkg --help for help about installing and deinstalling packages [*];
Use 'apt' or 'aptitude' for user-friendly package management;
Type dpkg -Dhelp for a list of dpkg debug flag values;
Type dpkg --force-help for a list of forcing options;
Type dpkg-deb --help for help about manipulating *.deb files;

Options marked [*] produce a lot of output - pipe it through 'less' or
'more' !

Best,
James

Hello,

Bug #854522 in ruby-debian reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/ruby-team/ruby-debian/commit/283b68ad2fe6d7a5031226f8ff9319f71ebbf680
------------------------------------------------------------------------
Call 'dpkg --print-architecture' instead of 'dpkg --print-installation-architecture'

We believe that the bug you reported is fixed in the latest version of
ruby-debian, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 854522@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Antonio Terceiro <terceiro@debian.org> (supplier of updated ruby-debian package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 01 Sep 2025 16:24:16 -0300
Source: ruby-debian
Architecture: source
Version: 0.3.12
Distribution: unstable
Urgency: medium
Maintainer: Debian Ruby Team <pkg-ruby-extras-maintainers@lists.alioth.debian.org>
Changed-By: Antonio Terceiro <terceiro@debian.org>
Closes: 854522 856365
Changes:
 ruby-debian (0.3.12) unstable; urgency=medium
 .
   * Team upload
 .
   [ James Lu ]
   * Call 'dpkg --print-architecture' instead of 'dpkg --print-installation-architecture'
     (Closes: #854522)
 .
   [ Antonio Terceiro ]
   * debian/rules: force UTF-8 locale for the build
   * Bump Standards-Version to 4.7.0; no changed needed
   * debian/control: drop obsolete *-Ruby-Versions fields
   * debian/control: replace explicit dependency on ruby with ${ruby:Depends}
   * Remove debian/.gitattributes
 .
   [ Debian Janitor ]
   * Trim trailing whitespace.
   * Use versioned copyright format URI.
   * Update standards version to 4.5.0, no changes needed.
   * Remove MIA uploader Ryan Niebur <ryan@debian.org>. Closes: #856365
   * Bump debhelper from old 12 to 13.
   * Update standards version to 4.6.1, no changes needed.
 .
   [ Cédric Boutillier ]
   * Update team name
   * Add .gitattributes to keep unwanted files out of the source package
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 03a24a704c2866271875deffa4dc96f185b62732 179200 ruby-debian_0.3.12.tar.xz
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