[Bug 1761264] Re: changelog.Debian.gz is a dangling symlink when libavcodec-extra57 is installed

[James Cowgill]

Thanks that makes more sense.

The bug is in Ubuntu's pkgbinarymangler which is responsible for
symlinking these changelogs. It seems to think that libavcodec57 is a
dependency of ffmpeg, but in fact libavcodec57 is part of a set of
alternatives where libavcodec-extra57 could be installed instead. I
think pkgbinarymangler should ignore any dependencies part of an
alternative set (ie containing a "|" character) which should fix this.

** Also affects: pkgbinarymangler (Ubuntu)
   Importance: Undecided
       Status: New

** Summary changed:

- changelog.Debian.gz  is a dangling symlink when libavcodec-extra57 is installed
+ pkgbinarymanager: symlink_doc should ignore dependencies part of an alternative set

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https://bugs.launchpad.net/bugs/1761264

Title:
  pkgbinarymanager: symlink_doc should ignore dependencies part of an
  alternative set

Status in ffmpeg package in Ubuntu:
  New
Status in pkgbinarymangler package in Ubuntu:
  New

Bug description:
  Hi,

  here is the problem:

  $ symlinks /usr/share/doc/ffmpeg/
  dangling: /usr/share/doc/ffmpeg/changelog.Debian.gz -> ../libavcodec57/changelog.Debian.gz

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ffmpeg 7:3.4.2-1build1
  Uname: Linux 4.15.15-041515-generic x86_64
  ApportVersion: 2.20.9-0ubuntu2
  Architecture: amd64
  CurrentDesktop: MATE
  Date: Wed Apr  4 20:10:55 2018
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ffmpeg
  UpgradeStatus: No upgrade log present (probably fresh install)

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