case "$TARGET" in
centos6)
packages="$packages python27-python-arvados-fuse
- python27-python-arvados-python-client"
+ python27-python-arvados-python-client python27-python-arvados-cwl-runner"
;;
*)
packages="$packages python-arvados-fuse
- python-arvados-python-client"
+ python-arvados-python-client python-arvados-cwl-runner"
;;
esac
fi