(7) <0> [14:51:47] palo@silver [~] $ ghc-pkg list xmonad
/var/lib/ghc-6.12.1/package.conf.d
   xmonad-0.9.1
/home/palo/.ghc/x86_64-linux-6.12.1/package.conf.d
   xmonad-0.10
(8) <0> [14:51:49] palo@silver [~] $ ghc-pkg list xmonad-contrib
/var/lib/ghc-6.12.1/package.conf.d
   xmonad-contrib-0.9.1
/home/palo/.ghc/x86_64-linux-6.12.1/package.conf.d
   xmonad-contrib-0.10
(10) <0> [14:52:06] palo@silver [~] $ ghc-pkg unregister --user xmonad-contrib-0.9.1
ghc-pkg: /var/lib/ghc-6.12.1/package.conf.d/xmonad-contrib-0.9.1-4570c2899a5e9e70faf5054ed78d5702.conf: removeLink: does not exist (No such file or directory)
(11) <0> [14:52:18] palo@silver [~] $ ghc-pkg unregister --user xmonad-0.9.1
ghc-pkg: unregistering xmonad-0.9.1 would break the following packages: xmonad-contrib-0.9.1 (use --force to override)