[Haskell-cafe] Cabal and DB packages

[manu]

Hello,

I'm trying to do something that should be fairly simple, installing  
some DB package so I can use MySQL or SQLite.

However I've had troubles building HSQL, HaskellDB and Takusen before  
giving up (I am using ghc 6.8.1 and Cabal-1.2.2.0).

------------------

with HSQL :

Database/HSQL.hsc:66:7:
     Could not find module `System.Time':
       it is a member of package old-time-1.0.0.0, which is hidden

so I added 'old-time' to the 'build-depends' line in the .cabal file

but then it fails building with

Building hsql-1.7...
[1 of 2] Compiling Database.HSQL.Types ( Database/HSQL/Types.hs, dist/ 
build/Database/HSQL/Types.o )

Database/HSQL/Types.hs:134:18: Not in scope: type variable `forall'

Database/HSQL/Types.hs:134:25: Not in scope: type variable `a'

Database/HSQL/Types.hs:134:27:
     Illegal operator `.' in type `forall a . (Int
                                               -> FieldDef
                                                  -> (FieldDef ->  
CString -> Int -> IO a) -> IO a)'
       (Use -XTypeOperators to allow operators in types)

etc...

At this point, it goes over my head...

---------------

What the hell, I'll use HaskellDB and FlatDB, but then I get this  
message while building HaskellDB :

src/Database/HaskellDB/HDBRec.hs:106:11:
     Illegal signature in pattern: l f a
         Use -XPatternSignatures to permit it

when I add 'PatternSignatures' to the 'Extensions:' line in .cabal,  
it fails configuring with :

Setup.hs: haskelldb.cabal:8: Parse of field 'extensions' failed:

Jeeeesus, nevermind, I'll try Takusen

---------------

with Takusen :

$ runhaskell Setup.hs configure

Setup.hs:26:7:
     Could not find module `Distribution.Program':
       Use -v to see a list of the files searched for.

I give up...

----------------

Is there any simple way to do it though ? Is there any problems with  
Cabal that I need to work around ?

Help !!

Manu