[Haskell-cafe] Re: problem with cabal for syb-with-class

[Andrew U. Frank]

in fairness, i have to add that i did inadvertetly install version 0.3.
of syb-with-class and got the error i still cannot understand.

installing version 0.4 did work flawlessly!

nevertheless, i would be interested to understand the problem i
encountered.

andrew

On Mon, 2008-08-25 at 18:08 +0200, Andrew U. Frank wrote:
> i tried to install wxGeneric and need syb-with-class.
> i got the package from hackage.
> configure runs fine, but when i build i get:
> 
> Data/Generics/SYB/WithClass/Instances.hs:11:7:
>     Could not find module `Data.Array':
>       it is a member of package array-0.1.0.0, which is hidden
> 
> but array-0.1.0.0 is installed, as shown later.
> what can be wrong? why is an installed package complained about as
> hidden?
> 
> thanks for help!
> 
> andrew
> 
> frank at bernH:~/haskellSources/packages/syb-with-class-0.3$ ghc-pkg
> describe array
> name: array
> version: 0.1.0.0
> license: BSD3
> copyright:
> maintainer: libraries at haskell.org
> stability:
> homepage:
> package-url:
> description: This package defines the classes @IArray@ of immutable
> arrays and
>              @MArray@ of arrays mutable within appropriate monads, as
> well as
>              some instances of these classes.
> category:
> author:
> exposed: True
> exposed-modules: Data.Array Data.Array.Base Data.Array.Diff
>                  Data.Array.IArray Data.Array.IO Data.Array.MArray
> Data.Array.ST
>                  Data.Array.Storable Data.Array.Unboxed
> hidden-modules: Data.Array.IO.Internals
> import-dirs: /usr/lib/ghc-6.8.2/lib/array-0.1.0.0
> library-dirs: /usr/lib/ghc-6.8.2/lib/array-0.1.0.0
> hs-libraries: HSarray-0.1.0.0
> extra-libraries:
> extra-ghci-libraries:
> include-dirs:
> includes:
> depends: base-3.0.1.0
> hugs-options:
> cc-options:
> ld-options:
> framework-dirs:
> frameworks:
> haddock-interfaces: /usr/share/doc/ghc6-doc/libraries/array/array.haddock
> haddock-html: /usr/share/doc/ghc6-doc/libraries/array
> f
>