[Haskell-cafe] Build problems on Hackage server

Ross Paterson ross at soi.city.ac.uk
Thu Jul 8 03:01:23 EDT 2010

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 == however
> >array- was excluded because ghc-6.12.2 requires array ==
> Any idea of what might be causing this?

I think the problem was that containers- had been rebuilt
(using array-, 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).

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