this creates a dependency that creates this failure:
<pre>
./.libs/librados.so: undefined reference to `g_conf'
collect2: error: ld returned 1 exit status
make[3]: *** [ceph_test_cls_refcount] Error 1
make[3]: *** Waiting for unfinished jobs....
./.libs/librados.so: undefined reference to `g_conf'
collect2: error: ld returned 1 exit status
make[3]: *** [ceph_test_cls_rbd] Error 1
make[3]: Leaving directory `/home/loic/software/ceph/ceph-foo/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/loic/software/ceph/ceph-foo/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/loic/software/ceph/ceph-foo/src'
make: *** [all-recursive] Error 1
</pre>