[Bug 927637] [NEW] upgrade failure: qdbus and libqt4-dbus cyclic dependency

[Martin Pitt]

Public bug reported:

dist-upgrade from lucid to precise fails with qdbus. This is reproduced by the automatic upgrade tester, which has all logs:
https://jenkins.qa.ubuntu.com/view/Precise/job/precise-upgrade-lucid-universe/

Preparing to replace libqt4-dbus 4:4.6.2-0ubuntu5.3 (using .../libqt4-dbus_4%3a4.8.0-1ubuntu4_amd64.deb) ...
Unpacking replacement libqt4-dbus ...
Selecting previously unselected package qdbus.
Unpacking qdbus (from .../qdbus_4%3a4.8.0-1ubuntu4_amd64.deb) ...
[...]
dpkg: dependency problems prevent configuration of qdbus:
 qdbus depends on libqt4-dbus (= 4:4.8.0-1ubuntu4); however:
  Package libqt4-dbus is not configured yet.
dpkg: error processing qdbus (--configure):
 dependency problems - leaving unconfigured


This is because qdbus Depends: libqt4-dbus which in turn Depends: qdbus. It seems strange for a library to strictly depend on a command line tool.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: qdbus 4:4.8.0-1ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-14.23-generic 3.2.3
Uname: Linux 3.2.0-14-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Mon Feb  6 15:04:29 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110831)
ProcEnviron:
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: qt4-x11
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: qt4-x11 (Ubuntu)
     Importance: High
         Status: Triaged

** Affects: qt4-x11 (Ubuntu Precise)
     Importance: High
         Status: Triaged


** Tags: amd64 apport-bug lucid2precise precise rls-p-tracking running-unity

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https://bugs.launchpad.net/bugs/927637

Title:
  upgrade failure: qdbus and libqt4-dbus cyclic dependency

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