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Bug#966498: libgd-perl: Dropped libgd-gd2-perl breaks a Recommends in lcov and prevents a clean upgrade

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  Bug#966498: libgd-perl: Dropped libgd-gd2-perl breaks a Recommends in lcov and prevents a clean upgrade Vincent Lefevre <vincent@vinc17.net> - 2020-07-29 14:10 +0200
    Bug#966498: libgd-perl: Dropped libgd-gd2-perl breaks a Recommends in lcov and prevents a clean upgrade Vincent Lefevre <vincent@vinc17.net> - 2020-07-29 14:30 +0200
    Bug#966498: libgd-perl: Dropped libgd-gd2-perl breaks a Recommends in lcov and prevents a clean upgrade gregor herrmann <gregoa@debian.org> - 2020-07-29 16:40 +0200

#1019690 — Bug#966498: libgd-perl: Dropped libgd-gd2-perl breaks a Recommends in lcov and prevents a clean upgrade

Package: libgd-perl
Version: 2.72-1
Severity: important

libgd-perl (2.72-1) unstable; urgency=medium
[...]
  * Drop ancient Breakes/Replaces/Provides on libgd-gd2-{,noxpm-}perl.
[...]
 -- gregor herrmann <gregoa@debian.org>  Wed, 22 Jul 2020 19:58:57 +0200

libgd-gd2-perl is not ancient. It is still used by lcov at least:

Package: lcov
Status: install ok installed
Priority: optional
Section: devel
Installed-Size: 456
Maintainer: Alastair McKinstry <mckinstry@debian.org>
Architecture: all
Version: 1.14-2
Depends: perl:any, gcc, libjson-perl, libperlio-gzip-perl
Recommends: libgd-gd2-perl

signing-party 2.11-1 also has:
Recommends: default-mta | mail-transport-agent, dialog | whiptail, libgd-gd2-noxpm-perl | libgd-gd2-perl, libpaper-utils

This prevents a clean upgrade with aptitude, which checks Recommends.

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.7.0-2-amd64 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=POSIX, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libgd-perl depends on:
ii  libc6                       2.31-2
ii  libgd3                      2.3.0-2
ii  perl                        5.30.3-4
ii  perl-base [perlapi-5.30.3]  5.30.3-4

libgd-perl recommends no packages.

libgd-perl suggests no packages.

-- no debconf information

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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#1019693

On 2020-07-29 14:05:43 +0200, Vincent Lefevre wrote:
> Package: libgd-perl
> Version: 2.72-1
> Severity: important
> 
> libgd-perl (2.72-1) unstable; urgency=medium
> [...]
>   * Drop ancient Breakes/Replaces/Provides on libgd-gd2-{,noxpm-}perl.
> [...]
>  -- gregor herrmann <gregoa@debian.org>  Wed, 22 Jul 2020 19:58:57 +0200
> 
> libgd-gd2-perl is not ancient. It is still used by lcov at least:
> 
> Package: lcov
> Status: install ok installed
> Priority: optional
> Section: devel
> Installed-Size: 456
> Maintainer: Alastair McKinstry <mckinstry@debian.org>
> Architecture: all
> Version: 1.14-2
> Depends: perl:any, gcc, libjson-perl, libperlio-gzip-perl
> Recommends: libgd-gd2-perl
> 
> signing-party 2.11-1 also has:
> Recommends: default-mta | mail-transport-agent, dialog | whiptail, libgd-gd2-noxpm-perl | libgd-gd2-perl, libpaper-utils
> 
> This prevents a clean upgrade with aptitude, which checks Recommends.

Worse than that, if libgd-gd2-perl features were silently dropped,
this may break lcov. And if they are still present in libgd-perl,
installing lcov on a machine will not install libgd-perl automatically
(in case it is not already installed), so that lcov will not behave as
normally expected.

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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#1019699

[Multipart message — attachments visible in raw view] — view raw

Control: forcemerge -1 966365
Control: severity -1 serious
Control: found -1 libgd-perl 2.72-1
Control: tag -1 + sid bullseye confirmed
Control: affects -1 + circos gbrowse ircmarkers libbio-graphics-perl libcatalyst-view-gd-perl libchado-perl libchart-strip-perl libgd-svg-perl libtemplate-plugin-gd-perl libtest-image-gd-perl lightsquid otrs2 shanty


On Wed, 29 Jul 2020 14:05:43 +0200, Vincent Lefevre wrote:

> libgd-perl (2.72-1) unstable; urgency=medium
> [...]
>   * Drop ancient Breakes/Replaces/Provides on libgd-gd2-{,noxpm-}perl.
> [...]
>  -- gregor herrmann <gregoa@debian.org>  Wed, 22 Jul 2020 19:58:57 +0200
> 
> libgd-gd2-perl is not ancient. It is still used by lcov at least:

Well, depends on the definition of "ancient".

The breaks/replaces/provides were added to libgd-perl in 2013
https://tracker.debian.org/media/packages/libg/libgd-perl/changelog-2.72-1 ;
libgd-gd2-perl and libgd-gd2-noxpm-perl were removed from testing at that time, and from the archive in 2014:
https://tracker.debian.org/pkg/libgd-gd2-perl
https://tracker.debian.org/pkg/libgd-gd2-noxpm-perl

But yes, there are at least 13 package still depending in the removed
real or virtual packages, according to
https://qa.debian.org/excuses.php?package=libgd-perl

And I'm sorry for missing these reverse dependencies. Obviously my
methodology was not good enough:

% reverse-depends libgd-gd2-noxpm-perl
b'<p>Package not published in specified release</p>'

% apt-cache rdepends libgd-gd2-noxpm-perl
<libgd-gd2-noxpm-perl>


Anyway, I'll add the Breaks/Replaces/Provides back and file bugs
against the reverse dependencies.
 

Cheers,
gregor

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