dotnetCorePackages.combinePackages: set DOTNET_HOST_PATH in wrappers

    postBuild = ''

      mkdir -p "$out"/bin "$out"/share/dotnet

      cp -R "${cli}"/nix-support "$out"/

      cp "${cli}"/share/dotnet/dotnet $out/share/dotnet

      ln -s "$out"/share/dotnet/dotnet "$out"/bin/dotnet

      cp "${cli}"/share/dotnet/dotnet "$out"/share/dotnet

      # dotnet won't run if it's renamed, so we can't wrap it in-place

      makeWrapper "$out"/share/dotnet/dotnet "$out"/share/dotnet/.dotnet-wrapper \

        --set-default DOTNET_HOST_PATH "$out"/share/dotnet/dotnet

      # the wrapper itself can't be in $out/bin, because things follow symlinks

      # to find DOTNET_ROOT

      ln -s "$out"/share/dotnet/.dotnet-wrapper "$out"/bin/dotnet

      if [[ -e "${cli}"/share/dotnet/dnx ]]; then

        cp "${cli}"/share/dotnet/dnx $out/share/dotnet

        ln -s "$out"/share/dotnet/dnx "$out"/bin/dnx

        cp "${cli}"/share/dotnet/dnx "$out"/share/dotnet

        makeWrapper "$out"/share/dotnet/dnx "$out"/share/dotnet/.dnx-wrapper \

          --set-default DOTNET_HOST_PATH "$out"/share/dotnet/dotnet

        ln -s "$out"/share/dotnet/.dnx-wrapper "$out"/bin/dnx

      fi

    ''

    + lib.optionalString (cli ? man) ''