[project @ 2004-11-09 15:48:34 by simonmar]

[project @ 2004-11-09 15:48:34 by simonmar]
Adding Cabal to GHC, stage 1:

  - Add Data.Version library as previously discussed on
    libraries@haskell.org.

  - import the Cabal library as a package under fptools/libraries,
    build & install it by default.

  - Instead of importing Cabal's version of ReadP, I added the extra
    combinators to Text.ParserCombinators.ReadP.  If anyone objects,
    please speak up.

I made various changes to Cabal along the way, which I'll try to fold
back into the main Cabal sources in due course.  The changes are
roughly these:

  - Generic Version stuff removed from Distribution.Version (now in
    Data.Version).

  - Some modules were rearranged.  Distribution.Misc was replaced by
    Distribution.License & Distribution.Extension.  Distribution.Package
    split into D.PackageDescription and D.Package.

  - modules under Compat.* renamed to Distribution.Compat.*.  Hopefully
    I've retained enough compatibility stuff so that this will still build
    under nhc98 & Hugs.

  - Some elaboration of InstalledPackageInfo, which was previously unused
    in Cabal.  I've updated the type definition with respect to changes
    in PackageDescription, and added a parser/pretty-printer for it.
    This is going to be used in the new ghc-pkg.

  - Fixed a bug or two that I found along the way.

The next stage will be to integrate GHC's idea of packages with
Cabal's.  That means ghc-pkg must grok InstalledPackageInfo, and we
must use all the new information (versions, exposed/unexposed modules etc.).