"undefined references" when using package

[Jan Christiansen]

Hi!
I try to generate a package out of some haskell sources. Everything looks to 
work fine but when I try to compile a program using this package I get a 
linking error. It reports "undefined reference" to seemingly everything that 
is accessible form outside the package. I'm using ghc-6.2.1 and I would be 
very grateful for a hint.

Gruss Jan