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Bug#898956: marked as done (libmateweather1 is marked Multi-Arch: same but is not coinstallable)

Your message dated Thu, 05 Jul 2018 12:37:41 +0000
with message-id <E1fb3W1-000HUj-Np@fasolo.debian.org>
and subject line Bug#898956: fixed in libmateweather 1.20.1-1
has caused the Debian Bug report #898956,
regarding libmateweather1 is marked Multi-Arch: same but is not coinstallable
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
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
898956: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=898956
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: libmateweather1
Version: 1.20.0-1
Severity: normal

Dear Maintainer,

Trying to install the amd64 and i386 versions of this package results in the 
following error:

# apt-get install libmateweather1:i386 libmateweather1:amd64
[...]
dpkg: dependency problems prevent configuration of libmateweather1:amd64:
 libmateweather1:i386 (1.20.0-1) breaks libmateweather and is installed.
  libmateweather1:amd64 (1.20.0-1) provides libmateweather.

dpkg: error processing package libmateweather1:amd64 (--configure):
 dependency problems - leaving unconfigured


So the source of the issue seems to be that libquazip5-1:
* Provides the libmateweather virtual package
* Breaks AND Conflicts with the libmateweather virtual package!
* Replaces the libmateweather virtual package

Apt seems to consider that this means libmateweather1:amd64 breaks 
libmateweather1:i386 through the libmateweather virtual package which prevents 
them from being coinstalled.

One strange thing is that, if I understand 7.6.1 of the Debian Policy Manual 
correctly, Breaks + Replaces is not supposed to be used on virtual packages:
http://www.chiark.greenend.org.uk/doc/debian-policy/policy.html/ch-relationships.html#s7.6.1

| For this usage of Replaces, virtual packages (see Virtual packages - Provides, 
| Section 7.5) are not considered when looking at a Replaces field. The packages 
| declared as being replaced must be mentioned by their real names.

Maybe that's why Apt is confused in this multi-arch configuration.


Note that, based on 7.6.2, the usual pattern for virtual packages would be 
Provides + Conflicts + Replaces:

|  In this situation, the package declared as being replaced can be a virtual 
|  package, so for example, all mail transport agents (MTAs) would have the 
|  following fields in their control files:
|
|     Provides: mail-transport-agent
|     Conflicts: mail-transport-agent
|     Replaces: mail-transport-agent
|
| ensuring that only one MTA can be unpacked at any one time


Finally libmateweather may well have been a real package at some point. However 
currently its only existence is through the Provides of libmateweather1. Still if 
the goal it to state that libmateweather1 breaks this old package (to ensure clean 
upgrades), then a Breaks + version number would probably be the right thing to do 
(see 7.5 of the policy):

http://www.chiark.greenend.org.uk/doc/debian-policy/policy.html/ch-relationships.html#s-virtual

| 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.



In any case it does not seem like libmateweather1 should combine Breaks and 
Conflicts.


Note that libmate-panel-applet-4-1 has a similar issue with libmatepanelapplet.


-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Foreign Architectures: amd64

Kernel: Linux 4.16.0-1-686-pae (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libmateweather1 depends on:
ii  libatk1.0-0            2.28.1-1
ii  libc6                  2.27-3
ii  libcairo-gobject2      1.15.10-3
ii  libcairo2              1.15.10-3
ii  libgdk-pixbuf2.0-0     2.36.11-2
ii  libglib2.0-0           2.56.1-2
ii  libgtk-3-0             3.22.29-3
ii  libmateweather-common  1.20.0-1
ii  libpango-1.0-0         1.42.0-1
ii  libpangocairo-1.0-0    1.42.0-1
ii  libsoup2.4-1           2.62.1-1
ii  libxml2                2.9.4+dfsg1-6.1

libmateweather1 recommends no packages.

libmateweather1 suggests no packages.

-- no debconf information

--- End Message ---
--- Begin Message --- 
Source: libmateweather
Source-Version: 1.20.1-1

We believe that the bug you reported is fixed in the latest version of
libmateweather, 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 898956@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Mike Gabriel <sunweaver@debian.org> (supplier of updated libmateweather 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: SHA256

Format: 1.8
Date: Thu, 05 Jul 2018 14:08:58 +0200
Source: libmateweather
Binary: libmateweather1 libmateweather-common libmateweather-dev
Architecture: source
Version: 1.20.1-1
Distribution: unstable
Urgency: medium
Maintainer: Debian+Ubuntu MATE Packaging Team <debian-mate@lists.debian.org>
Changed-By: Mike Gabriel <sunweaver@debian.org>
Description:
 libmateweather-common - MateWeather shared library (common files)
 libmateweather-dev - MateWeather shared library (development files)
 libmateweather1 - MateWeather shared library
Closes: 898956
Changes:
 libmateweather (1.20.1-1) unstable; urgency=medium
 .
   * New upstream release.
   * debian/control:
     + Update Vcs-*: fields. Package has been migrated to salsa.debian.org.
     + Bump Standards-Version: to 4.1.4. No changes needed.
     + Drop pkg-mate-team Alioth mailing list from Uploaders: field.
     + Drop P (from libmateweather1): libmateweather. (Closes: #898956).
       Drop C (from libmateweather1): libmateweather (having B:/R: is
       sufficient).
   * debian/copyright:
     + Use secure URI for copyright format.
     + Update Upstream-Contact: field.
     + Update Source: field. Use secure URLs.
     + Update copyright attributions.
   * debian/upstream/metadata:
     + Add file. Be compliant with DEP-12 proposal.
     + Use Martin's address as Contact: address.
Checksums-Sha1:
 74cd8afcab5fdfe8c350064f1d53fe434224fecb 2509 libmateweather_1.20.1-1.dsc
 c93ce2c82775cfec49d2fc37d3af6628a05a1b5f 3274272 libmateweather_1.20.1.orig.tar.xz
 bcd2b4a3deb365e235405de078807947b08b79a4 6496 libmateweather_1.20.1-1.debian.tar.xz
 cd4e7df1a82550708ba0ed469e334e4600cc53d2 15018 libmateweather_1.20.1-1_source.buildinfo
Checksums-Sha256:
 aa4e36d62accb284a214a092187396f31b95c33bb5da6f696a2f3834f3779d4d 2509 libmateweather_1.20.1-1.dsc
 2f64934c16ec1f6d61a5d024c213be1495f05b6b7446586f2714fa0ddac0c6d0 3274272 libmateweather_1.20.1.orig.tar.xz
 29aba055af7248315c71ffafaf4297607c581c036d9dd3df69fa47d487bb318b 6496 libmateweather_1.20.1-1.debian.tar.xz
 55b8f6c2dc5f99ccc2835e9f024fb4dd5b6642d869edae6e7280d4e9776cae94 15018 libmateweather_1.20.1-1_source.buildinfo
Files:
 e780b87058f6d80aadb88b10c13e8faa 2509 libs optional libmateweather_1.20.1-1.dsc
 574265201460a944593a40a02bbd11c8 3274272 libs optional libmateweather_1.20.1.orig.tar.xz
 05dce558dcb2530809026e774384ed2c 6496 libs optional libmateweather_1.20.1-1.debian.tar.xz
 4976162f64b8832e61fee27cfbc5d4f7 15018 libs optional libmateweather_1.20.1-1_source.buildinfo

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--- End Message ---
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