patch applied (ghc-6.12/packages/Cabal): Implement support for hugs and nhc98 package databases

[Ian Lynagh]

Wed Dec 23 15:35:57 PST 2009  Duncan Coutts <duncan at haskell.org>
  * Implement support for hugs and nhc98 package databases
  That is, work out which packages are installed for hugs and nhc98.
  In both cases there is special support for the core packages.
  In future both should use the standard method when they supply
  proper installed package info files for the bundled libraries.

    M ./Distribution/Simple/Configure.hs -10 +3
    M ./Distribution/Simple/Hugs.hs -10 +137
    M ./Distribution/Simple/NHC.hs -9 +140