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

[Daniel Fischer]

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.*.