[Haskell-cafe] RFI: HDBC-1.1.3 build error

ubuntu gutsy ghc-6.8.1 HDBC-1.1.3$ runghc Setup.lhs build Preprocessing library HDBC-1.1.3... Building HDBC-1.1.3... [3 of 6] Compiling Database.HDBC.Types ( Database/HDBC/Types.hs, dist/build/Database/HDBC/Types.o ) Database/HDBC/Types.hs:208:0: Illegal polymorphic or qualified type: forall conn. (IConnection conn) => conn -> b In the type signature for `withWConn': withWConn :: forall b. ConnWrapper -> (forall conn. (IConnection conn) => conn -> b) -> b TIA