[Haskell-cafe] ANN: HDBC v2.0 now available

[Valentyn Kamyshenko]

Thanks, Krzysztof - it worked for me.

Something is definitely wrong with cabal dependencies: even when  
HDBC-2.0.0 was installed, it tried to install it again (and failed)  
when I tried to install HDBC-postgresql and HDBC-sqlite3.
Manual installation (./Setup configure; ./Setup build; ./Setup  
install) worked.

Thank you for your help,

-- Valentyn.

On Jan 30, 2009, at 3:52 PM, Krzysztof Skrzętnicki wrote:

> On Sat, Jan 31, 2009 at 00:45, Krzysztof Skrzętnicki  
> <gtener at gmail.com> wrote:
> On Sat, Jan 31, 2009 at 00:07, Valentyn Kamyshenko  
> <kamysh at kamysh.org> wrote:
> Hello John,
>
> I'm trying to install the new version of HDBC on my Mac (ghc version  
> is 6.10.1), and get the following error:
>
> # cabal upgrade --global
> Resolving dependencies...
> 'HDBC-2.0.0' is cached.
> Configuring HDBC-2.0.0...
> Preprocessing library HDBC-2.0.0...
> Preprocessing executables for HDBC-2.0.0...
> Building HDBC-2.0.0...
> [1 of 7] Compiling Database.HDBC.SqlValue ( Database/HDBC/ 
> SqlValue.hs, dist/build/Database/HDBC/SqlValue.o )
> [2 of 7] Compiling Database.HDBC.ColTypes ( Database/HDBC/ 
> ColTypes.hs, dist/build/Database/HDBC/ColTypes.o )
> [3 of 7] Compiling Database.HDBC.Statement ( Database/HDBC/ 
> Statement.hs, dist/build/Database/HDBC/Statement.o )
>
> Database/HDBC/Statement.hs:113:9:
>    Type constructor `Exception' used as a class
>    In the instance declaration for `Exception SqlError'
> cabal: Error: some packages failed to install:
> HDBC-2.0.0 failed during the building phase. The exception was:
> exit: ExitFailure 1
>
> I got the same error: Windows XP, GHC 6.10.1.
> For some reason imported Control.Exception module appears to be  
> 6.8.* version.
>
> I found a (temporary) fix: change dependancy in .cabal file to state  
> "base >= 4". Otherwise cabal-install selects base-3 which is the  
> cause of the problems.
>
> All best
>
> Christopher Skrzętnicki
>
>

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