On Sun, 2007-11-25 at 18:49 +0100, manu wrote:
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)
This means you need -XRank2Polymorphism or maybe -XExistentialQuantification.
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
Are you sure you specified the right extensions? (correct spelling, correct separators) Unfortunately readP doesn't give you nice error messages.
---------------
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...
----------------
That means that Takusen requires an older Cabal. I'd have to look at the code to see how hard it would be to fix this.
Is there any simple way to do it though ? Is there any problems with Cabal that I need to work around ?
Help !!
Manu
_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe