Hi all,

The HappS version on Hackage does not yet support ghc 6.10, since GADT pattern matching and the Exception API have changed.
One sample error is:
 src/HAppS/Data/Xml/Base.hs:281:23:
    GADT pattern match with non-rigid result type `t1'
      Solution: add a type signature
...

Adding a type signature via an auxiliary function instead of a case expression, the problem goes away.

readElementRigidity :: (Monad m,Xml t) => Rigidity m -> m ([Element],t) -> Maybe  t
readElementRigidity Rigid m = ...
readElementRigidity Flexible m = ...

Is there a plan to update the version on Hackage to support ghc 6.10.1?
I don't know either if it may break backwards compatibility.

Cheers,
hugo

--
www.di.uminho.pt/~hpacheco