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Bug#761219: marked as done (debian-policy: document versioned Provides)

Your message dated Sun, 07 Jul 2019 15:34:50 +0000
with message-id <E1hk9Bi-000H6X-2Z@fasolo.debian.org>
and subject line Bug#761219: fixed in debian-policy 4.4.0.0
has caused the Debian Bug report #761219,
regarding debian-policy: document versioned Provides
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
761219: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=761219
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: debian-policy
Version: 3.9.5.0
Severity: wishlist

dpkg 1.17.11 and apt 1.0.7 recently implemented support for versioned
provides. From the dpkg changelog:

  * Add versioned Provides support:
    - Add a new dpkg --assert-versioned-provides command.
    - Packages can provide a specific version, “virtual (= 1.0)” which will
      be honored, previously it would just be accepted when parsing.
    - Non-versioned virtual packages will not satisfy versioned dependencies.
    - Versioned virtual packages will satisfy non-versioned dependencies.

This seems useful for at least perl packages [0], where we'd like to
start using them after jessie is released, if possible.

Quoting section 7.5 (Virtual packages - `Provides') of the current policy:

     If a relationship field has a version number attached, only real
     packages will be considered to see whether the relationship is
     satisfied (or the prohibition violated, for a conflict or breakage).
     In other words, if a version number is specified, this is a request
     to ignore all `Provides' for that package name and consider only
     real packages.  The package manager will assume that a package
     providing that virtual package is not of the "right" version.
     A `Provides' field may not contain version numbers, and the version
     number of the concrete package which provides a particular virtual
     package will not be considered when considering a dependency on or
     conflict with the virtual package name.[1]

    [...]

     [1]  It is possible that a future release of `dpkg' may add the
     ability to specify a version number for each virtual package
     it provides.  This feature is not yet present, however, and is
     expected to be used only infrequently.

This clearly needs an update. No proposed wording yet, sorry.

[0] perl/perl-modules Provide a dozen or so virtual packages of bundled
    modules that also exist as separate packages in the archive with a
    newer version. Packages that need at least a specified version of
    such a module currently need to do things like
     Depends: perl (>=y) | libfoo-bar-perl (>=x) 
    and the expressions may even need changes with newer perl releases.

    See https://lintian.debian.org/tags/versioned-dependency-satisfied-by-perl.html

-- 
Niko Tyni   ntyni@debian.org

--- End Message ---
--- Begin Message --- 
Source: debian-policy
Source-Version: 4.4.0.0

We believe that the bug you reported is fixed in the latest version of
debian-policy, 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 761219@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Sean Whitton <spwhitton@spwhitton.name> (supplier of updated debian-policy 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)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Sun, 07 Jul 2019 15:40:41 +0100
Source: debian-policy
Architecture: source
Version: 4.4.0.0
Distribution: unstable
Urgency: medium
Maintainer: Debian Policy Editors <debian-policy@lists.debian.org>
Changed-By: Sean Whitton <spwhitton@spwhitton.name>
Closes: 761219 897217 917431 920355 928199 930666
Changes:
 debian-policy (4.4.0.0) unstable; urgency=medium
 .
   [ Sean Whitton ]
   * Policy: Recommend use of dh
     Wording: Russ Allbery <rra@debian.org>
     Wording: Sean Whitton <spwhitton@spwhitton.name>
     Seconded: Sam Hartman <hartmans@debian.org>
     Closes: #930666
   * Policy: Permit -b in Vcs-Hg as well as Vcs-Git
     Wording: Chris Lamb <lamby@debian.org>
     Seconded: Holger Levsen <holger@layer-acht.org>
     Seconded: Sean Whitton <spwhitton@spwhitton.name>
     Closes: #897217, #920355
   * Policy: Document versioned Provides:
     Wording: Dominic Hargreaves <dom@earth.li>
     Seconded: Sean Whitton <spwhitton@spwhitton.name>
     Seconded: gregor herrmann <gregoa@debian.org>
     Closes: #761219
   * virtual-package-names-list: Add logind, default-logind
     Wording: Adam Borowski <kilobyte@angband.pl>
     Seconded: Jonathan Nieder <jrnieder@gmail.com>
     Seconded: Holger Levsen <holger@layer-acht.org>
     Closes: #917431
   * Add text to header of the virtual packages list describing the
     "(versioned)" annotation.
   * Fix reference to FHS section in Policy 9.1.2.
     Thanks to Juuso "Linda" Lapinlampi for the patch.
   * Process: Rewrite description of 'obsolete' usertag.
   * Process: Add 'stalled' usertag.
   * Add footnote to 2.3 with a list of licenses thought not to require the
     copying of all copyright notices into the package's copyright file
     (Closes: #928199).
     This was based on discussion between myself and FTP team members.
 .
   [ Russ Allbery ]
   * Fix formatting of the debian_revision explanation in Policy 5.6.12.
     Thanks to Emmanuel Arias for the patch.
Checksums-Sha1:
 1d47b9dafb23f4884e6c85917f09392bd4525288 2023 debian-policy_4.4.0.0.dsc
 8ff498c1af2fdff05655e25b0ad27e1295a08112 534372 debian-policy_4.4.0.0.tar.xz
Checksums-Sha256:
 ee28303c6baa55ff26f59ec03e51a09ff45ac38e496562d3b63164feb4b6ea8c 2023 debian-policy_4.4.0.0.dsc
 64ff2272e32ea1077cdd996a052cbe865bb589a5dc08733559b9d0feb79950df 534372 debian-policy_4.4.0.0.tar.xz
Files:
 5f2ca57de66982a6871d86d3433c90e5 2023 doc optional debian-policy_4.4.0.0.dsc
 2e2323b31177e50efa1e8a981cf48ab6 534372 doc optional debian-policy_4.4.0.0.tar.xz

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--- End Message ---
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