[Haskell-cafe] cabal probems with binary/containers packages

[Duncan Coutts]

On Wed, 2009-10-28 at 07:07 -0700, brian wrote:
> Just found the following file:
> 
> .ghc/powerpc-darwin-6.10.1/pkg-config
> 
> and it is referring to 0.5.0.1.
> 
> Is there anyway to regenerate the file, or is it broken because of a  
> problem with the package ?

> >> It all started with this:
> >>
> >> Loading package binary-0.5.0.1 ... can't load .so/.DLL for:
> >> HSbinary-0.5.0.1 (dlopen(libHSbinary-0.5.0.1.dylib, 9): image not  
> >> found)


What's (probably) going on is that you deleted the files for the
binary-0.5.0.1 package but did not unregister it. You probably also have
other registered packages that depend on binary-0.5.0.1 (because that's
the version they were built against).

You can use ghc-pkg to forcibly unregister binary-0.5.0.1 and rebuild
the other packages that depended on it.

Generally I recommend just leaving old packages and rebuilding things
when necessary (which cabal-install will do automatically) rather than
going about deleting or unregistering older versions of packages.

Duncan