[Haskell-cafe] Build problems on Hackage server

[Ross Paterson]

On Wed, Jul 07, 2010 at 10:22:25AM +0200, Emil Axelsson wrote:
> Last week I uploaded new versions of feldspar-language and
> feldspar-compiler. Both packages build just fine on our local
> machines with GHC 6.10 and 6.12.
> 
> But Hackage reports the following build failure:
> 
> >cabal: dependencies conflict: ghc-6.12.2 requires array ==0.3.0.1 however
> >array-0.3.0.1 was excluded because ghc-6.12.2 requires array ==0.3.0.0
> 
> Any idea of what might be causing this?

I think the problem was that containers-0.3.0.0 had been rebuilt
(using array-0.3.0.1, which released at the same time as GHC 6.12.3).
Upgrading to GHC 6.12.3 has fixed this (until the next GHC release).