[Haskell-cafe] Re: Why cabal forces reinstallation of happstack-utils?

[Maciej Piechotka]

On Wed, 2010-05-05 at 01:09 +0200, Daniel Fischer wrote:
> On Mittwoch 05 Mai 2010 00:55:38, Maciej Piechotka wrote:
> > I try to configure happstack with parsec 3.1. It seems to fail due to
> > cabal:
> >
> 
> happstack-util.cabal says parsec < 3, so --constraint="parsec > 3" and the 
> given dependencies are incompatible, hence it can't be configured.
> 
> Probably parsec < 3 was specified because parsec-3.0 was significantly 
> slower than parsec-2.*.

I updated local copy, as shown, but cabal wants to rebuild it anyway. My
question was rather why the repo is considered at all when the package
is installed.

Regards
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