ghc: add ghc-packages returning list of package databases so that you

can define GHC_PACKAGE_PATH=`ghc-packgaes` easily. Required for scion

svn path=/nixpkgs/trunk/; revision=16481
This commit is contained in:
Marc Weber 2009-07-27 16:05:44 +00:00
parent ada954cfbc
commit 58239ae82a

View file

@ -20,6 +20,24 @@ stdenv.mkDerivation {
for prg in ghc-pkg ghc-pkg-${ghc.version}; do
makeWrapper $ghc/bin/$prg $out/bin/$prg --add-flags "\$($out/bin/ghc-get-packages.sh ${ghc.version} \"\$(dirname \$0)\" --package-conf=)"
done
cat >> $out/bin/ghc-packages << EOF
#! /bin/bash -e
declare -A GHC_PACKAGES_HASH # using bash4 hashs to get uniq paths
for arg in \$($out/bin/ghc-get-packages.sh 6.10.3 "$(dirname $0)"); do
case "\$arg" in
-package-conf) ;;
*)
CANONICALIZED="\$(readlink -f "\$arg")"
GHC_PACKAGES_HASH["\$CANONICALIZED"]= ;;
esac
done
for path in \''${!GHC_PACKAGES_HASH[@]}; do
echo -n "\$path:"
done
EOF
chmod +x $out/bin/ghc-packages
ensureDir $out/nix-support
ln -s $out/nix-support/propagated-build-inputs $out/nix-support/propagated-user-env-packages
'';