ghc-pkg: can't unregister - not found - describe works?

[Duncan Coutts]

On Sat, 2007-07-21 at 16:25 +0200, Marc Weber wrote:
> marc at localhost /pr/source/wxh/wxhaskell-0.9.4 $  ghc-pkg-wrapper-6.6.1 unregister wx
> ghc-pkg: cannot find package wx
> marc at localhost /pr/source/wxh/wxhaskell-0.9.4 $  ghc-pkg-wrapper-6.6.1 describe wx
> name: wx
> version: 0.10.1
> license: AllRightsReserved
> [...]
> 
> What does happen here?
> ghc-pkg-wrapper is just a simple script defining GHC_PACKAGE_PATH
> 
> marc at localhost /pr/source/wxh/wxhaskell-0.9.4 $  ghc-pkg-wrapper-6.6.1 list
> /nix/store/q74q9piy9fsk4k7w1p3r3xc8wsm1z87m-ghc-6.6.1/lib/ghc-6.6.1/package.conf:
>     Cabal-1.1.6.2, HUnit-1.1.1, QuickCheck-1.0.1, base-2.1.1,
>     [...]
> /nix/store/fbj85ijnbc69bh19zi1a14p9idknb5g9-wxHaskell-0.10.1-pre20070124/nix-support/package.conf:
>     wx-0.10.1, wxcore-0.10.1

The wx package is in your 'user' package db rather than in the 'global'
one. All ghc-pkg operations operate on the global one by default, use
the --user flag to operate on the user db:

$ ghc-pkg --user unregister wx
$ ghc-pkg --user unregister wxcore


Duncan