[darcs-users] ANN: gorsvet 0.1

Eric Kow kowey at darcs.net
Sat Feb 14 15:35:05 UTC 2009


Hi Petr,

On Fri, Feb 13, 2009 at 18:10:26 +0100, Petr Rockai wrote:
> you will also need latest hashed-storage:
> 
>     http://repos.mornfall.net/hashed-storage

Looks like you've run into the problem with GHC 6.10 extensible extensions:

Storage/Hashed/Utils.hs:33:6:
    Ambiguous type variable `e1' in the constraint:
      `GHC.Exception.Exception e1'
        arising from a use of `catch'
                     at Storage/Hashed/Utils.hs:(33,6)-(38,58)
    Probable fix: add a type signature that fixes these type variable(s)

Storage/Hashed/Utils.hs:50:19:
    Ambiguous type variable `e' in the constraint:
      `GHC.Exception.Exception e'
        arising from a use of `catch' at Storage/Hashed/Utils.hs:50:19-67
    Probable fix: add a type signature that fixes these type variable(s)

Maybe it would make sense to use the extensible-exceptions package
so you can use GHC 6.10 exceptions everywhere?

http://hackage.haskell.org/cgi-bin/hackage-scripts/package/extensible-exceptions

Regards,

-- 
Eric Kow <http://www.nltg.brighton.ac.uk/home/Eric.Kow>
PGP Key ID: 08AC04F9
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