Your message dated Thu, 3 Dec 2015 00:24:27 +0000
with message-id <[email protected]>
and subject line Re: aptitude: wrong dependency resolution, cannot update one 
package
has caused the Debian Bug report #330503,
regarding aptitude: wrong dependency resolution, cannot update one package
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.

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-- 
330503: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=330503
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: aptitude
Version: 0.2.15.9-6
Severity: normal


Updating one package with complex dependencies fails:
I tried to update from slang1a-utf8 (1.4.9dbs-8) to
libslang1-utf8 (1.4.9dbs-10).

The following dependencies exist:

slang1a-utf8 (1.4.9dbs-8)
  Conflicts: slang1-utf8

libslang1-utf8 (1.4.9dbs-10)
  Conflicts: slang1-utf8, slang1a-utf8
  Replaces:  slang1a-utf8
  Provides:  slang1a-utf8

util-linux (2.12-7+kbsd.1)
  PreDepends: slang1a-utf8 (>1.4.4-7.1)

Installing libslang1-utf8 is not possible, even though it should be possible
to replace slang1a-utf8 with libslang1-utf8 without any problems.
I know that kfreebsd-i386 is not an official architecture,
but I think the dependency resolution algorithm has not changed there.

I also tested with
# apt-get -s install libslang1-utf8
but this wanted to remove util-linux as well.

I report this issue here nevertheless to make you aware of it,
in case aptitude has its own dependency resolution.
If that's wrong then please reassign it.


Martin


-- System Information:
Debian Release: unstable
Architecture: kfreebsd/i386 (i686)

Versions of packages aptitude depends on:
apt 0.6.41+kbsd

-- no debconf information


--- End Message ---
--- Begin Message ---
2015-11-13 15:34 To Martin Koeppe:

Sorry that this report has not been handled for a decade now.

I think that the problem was that util-linux depended on a version with
"greater", while virtual packages (Provides) did not support this kind
of relationship (I think that there is now support for this in the
works, but not finished yet).  In any case it looks to me a specific and
transitient problem with the dependencies of the packages themselves or
this problem with virtual packages, not a bug in aptitude per se.

I was trying to look at the changelogs and bugtracker of the related
packages, but the slang ones are not even present now.  I couldn't find
anything conclusive.

Not sure if we can do much about this report by now, sorry.

Did you find this problem in more instances, especially with kfreebsd?

I am going to close the bug report now, because it's not clear that it's
still present and we cannot do much about it by now.

Please reopen if you can still see it and/or reproduce it in other ways.


Cheers.
--
Manuel A. Fernandez Montecelo <[email protected]>

--- End Message ---
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