Re: Breakage with ghc-6.10

Duncan Coutts wrote:

Ok, lets look at hslogger:

src/System/Log/Logger.hs:333:20: Couldn't match expected type `Maybe Logger' against inferred type `IO Logger' In a stmt of a 'do' expression: result <- Map.lookup lname newlt

Ah ok, so that's the change in Map.lookup to return Maybe rather than in any monad. So that's an easy source code fix:

result <- maybe (fail "Arrgh!") return (Map.lookup lname newlt)

There are actually more instances than this in the code, but I already have fixed it in my git tree. I guess it's time to make a release. -- John

Note of course this will also work with the previous implementation of lookup.

Duncan