dpkg should not "simplify" version numbers in dependencies

[hcmeyer]

libqwt-dev 6.0.0-1ubuntu1 shows as upgradeable, upgrading does not satisfy upgrade. Synaptic and apt-get upgrade show same.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: libqwt-dev 6.0.0-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Thu Oct 13 11:48:43 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110919)
SourcePackage: qwt
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[theghost (theghost)]

This error also occcurs on Ubuntu 11.10 x64.

[theghost (theghost)]

Added package 'apt' as affected, merged another duplicate, changed title and added tag. Hopefully, this bug gets more attention now.

[David Kalnischkies (donkult)]

This is caused by dpkg stripping the ending dash from the version number in the Replaces dependency.
Online is:
Replaces: libqwt5-qt4-dev (<< 6.0.0-)
After installation you have in dpkg/status:
Replaces: libqwt5-qt4-dev (<< 6.0.0)

APT therefore detects these two versions as different as they have different dependencies. Having the dash around doesn't make a lot of sense for libqwt-dev, but removing it in the status file isn't the nicest think which could be done by dpkg, too.
Either way, not really a bug in APT…

(qwt has a bugreport in debian for this, too: See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631816)

[Hans Meine (hans-meine)]

What does "Fix Committed" mean? (I still have this problem, and it's one week later now.)
I have no other pending updates; if this was fixed in dpkg, can we get an update for oneiric?

[Raphaël Hertzog (hertzog)]

It means someone changed the status without justification. This is a dpkg bug but a rather minor one.

dpkg simplifies some versions like "0:1.0" into "1.0" or "1.0-" into "1.0" but it should not do that to avoid the kind of problem described here.

[Raphaël Hertzog (hertzog)]

Please use #900566 to track the problem on the qwt side. This bug is now for the dpkg side of the problem.

[Ken Sharp (kennybobs)]

Is there any update on this? The qwt bug was fixed over a year ago.

[dino99 (9d9)]

That version is no more supported