patch applied (cabal-install): Fix improvePlan so the index is updated incrementally

Mon Jun 2 09:39:44 PDT 2008 Duncan Coutts * Fix improvePlan so the index is updated incrementally It's important since later packages can depend on earlier ones having been changed from configured to pre-existing. That is afterall the whole point of considering them in reverse toplogical order. Also, remove duplicates in the dependencies list of installed packages since ghc-pkg does not currently prevent duplicates in (eg multiple depends on the same version of base). See ghc bug #2230. M ./Hackage/Dependency/TopDown.hs -8 +9 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20080602163944-adfee-a...