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List:       fedora-devel-list
Subject:    Re: Testing libsatsolver on Fedora
From:       Miroslav Lichvar <mlichvar () redhat ! com>
Date:       2009-07-31 15:41:18
Message-ID: 20090731154117.GF12281 () localhost
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On Fri, Jul 31, 2009 at 11:14:56AM -0400, Seth Vidal wrote:
> On Fri, 31 Jul 2009, Miroslav Lichvar wrote:
>> If I'm not mistaken yum is developed to work only with Fedora
>> repositories which are conflict free, while the other depsolvers try
>> to handle more general repositories with conflicts. This gives yum a
>> big advantage as it doesn't need to use as complex algorithms as the
>> other depsolvers use. IIRC this reduces the complexity of the problem
>> from exponential to polynomial.
>
> Yum was not developed with that in mind at all. Yum repos have conflicts  
> all the time. The issue is not with repos having conflicts, it is with  
> installed pkgs (or to be installed) packages having conflicts.

Right, I meant conflicts between latest versions of packages in
all repositories.

Is there a plan to handle such conflicts in yum? A fair comparison
would be possible then.

-- 
Miroslav Lichvar

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