[ceph-users] How to specify to only build ceph-radosgw package from source?

Hi, I usually install the SRPM and then build from ceph.spec like this: rpmbuild -bb /root/rpmbuild/SPECS/ceph.spec --without ceph_test_package But it take a long time and contain many packages that I don't need. So is there a way to optimize this build process for only needed package, for example ceph-radosgw? Thanks.