patch applied (ghc-6.12/ghc): Packages are only shadowed if the InstalledPackageId is *different*

[Ian Lynagh]

Tue Oct  6 08:49:40 PDT 2009  Simon Marlow <marlowsd at gmail.com>
  * Packages are only shadowed if the InstalledPackageId is *different*
  Ignore-this: dc1b9417bc4d75206a18e4ee979370ff
  If the two InstalledPackageIds are the same, then the packages are
  interchangeable and we don't need to explicitly remove one of them.

    M ./compiler/main/Packages.lhs -6 +7

View patch online:
http://darcs.haskell.org/ghc-6.12/ghc/_darcs/patches/20091006154940-12142-aef5afd3439013336c57703bc47afb2045d38ad0.gz