make cabal expression add etxra library paths only if they exist.
Adding myself as maintainer so that the buildfarm builds ghc.
svn path=/nixpkgs/trunk/; revision=19198
$out/lib/ghc-pkgs/ghc-<version>/<package>.conf instead of under
$out/nix-support/ghc-package.conf. This makes them visible in the
user's profile when installed with nix-env.
svn path=/nixpkgs/trunk/; revision=15135
set GHC_PACKAGE_PATH.
* Let Cabal generate a package configuration file
($out/nix-support/ghc-package.conf) instead of a registration
script.
svn path=/nixpkgs/trunk/; revision=15127
* transformed zlib, vty, binary, X11 to use generic Cabal builder
* note that Cabal library packages are now by default prefixed with "haskell-"
svn path=/nixpkgs/trunk/; revision=10247