[Haskell-cafe] help with cabal; trying to escape from configuration hell

[S. Doaitse Swierstra]

I am trying to run happstack on my Mac, but unfortunately I am getting  
error messages as described in:

http://code.google.com/p/happstack/issues/detail?id=88

The cure seems to be to downgrade to network-2.2.0.1, but  
unfortunately my installed cabal depends on network-2.2.1.4.

I tried to re-install happstack using:

cabal install happstack --reinstall --constraint="network==2.2.0.2"

but unfortunately the ghc happily reports to link against  
network-2.2.1.4:

...
Loading package parsec-2.1.0.1 ... linking ... done.
Loading package hsemail-1.3 ... linking ... done.
Loading package network-2.2.1.4 ... linking ... done.
Loading package SMTPClient-1.0.1 ... linking ... done.
Loading package time-1.1.4 ... linking ... done.
...

Can someone rescue me?

  Doaitse