The freaky implementation was done that way in order to avoid unnecessary
re-builds of all Haskell packages by changing the wrapper script used
internally in those builds.
See <https://github.com/NixOS/nixpkgs/pull/466> for further details.
$out/lib/ghc-pkgs/ghc-<version>/<package>.conf instead of under
$out/nix-support/ghc-package.conf. This makes them visible in the
user's profile when installed with nix-env.
svn path=/nixpkgs/trunk/; revision=15135
into haskell-packages.nix, which depends on an instance of GHC.
This allows a consistent set of packages to be built with the same
GHC. For instance,
$ nix-build -A haskellPackages_ghc683.xmonad
builds xmonad and all its dependencies with GHC 6.8.3, while
$ nix-build -A haskellPackages_ghc6102.xmonad
does the same with GHC 6.10.2. This is the same technique used with
kernelPackages. It also means that we don't need things like
"cabal682" and "cabal683" anymore.
* The setup hook is now in a separate wrapper package so that we don't
have to recompile all of GHC every time we want to make a small
change.
* cinelerra: this package appears to have an accidental dependency on
the "X11" Haskell package.
svn path=/nixpkgs/trunk/; revision=15125
