Ceph

I am working on a buildroot package (using 10.0.3 atm), and have found
some problems with configure flag dependencies. I am not entirely
sure about dependencies, but afaik ceph-osd does not depend on rados
or radosstriper, but this is the output of build with different flags:

1. --with-osd --with-nss --without-"everything"
   

     CXXLD    ceph-dencoder
   test/encoding/ceph_dencoder-ceph_dencoder.o: In function `DencoderBase<journal::Entry>::decode(ceph::buffer::list, unsigned long)':
   /usr/src/ceph/src/test/encoding/ceph_dencoder.cc:112: undefined reference to `journal::Entry::decode(ceph::buffer::list::iterator&)'
   test/encoding/ceph_dencoder-ceph_dencoder.o: In function `DencoderBase<journal::Entry>::dump(ceph::Formatter*)':
   /usr/src/ceph/src/test/encoding/ceph_dencoder.cc:128: undefined reference to `journal::Entry::dump(ceph::Formatter*) const'
   test/encoding/ceph_dencoder-ceph_dencoder.o: In function `DencoderBase<journal::Entry>::generate()':
   /usr/src/ceph/src/test/encoding/ceph_dencoder.cc:131: undefined reference to `journal::Entry::generate_test_instances(std::list<journal::Entry*, std::allocator<journal::Entry*> >&)'
   test/encoding/ceph_dencoder-ceph_dencoder.o: In function `DencoderImplNoFeatureNoCopy<journal::Entry>::encode(ceph::buffer::list&, unsigned long)':
   /usr/src/ceph/src/test/encoding/ceph_dencoder.cc:160: undefined reference to `journal::Entry::encode(ceph::buffer::list&) const'
   

2. --with-osd --with-rados --with-nss --without-"everything"
   

   make[3]: Entering directory `/usr/src/ceph/src'
   ./make_version -g ./.git_version
   if [ -n "$NO_VERSION" ] ; then \
                   ./make_version -g ./.git_version -c ./ceph_ver.h -n ; \
           else \
                   ./make_version -g ./.git_version -c ./ceph_ver.h ; \
           fi
     CXXLD    rados
   g++: error: ./.libs/libradosstriper.so: No such file or directory
   

3. --with-osd --with-rados --with-radosstriper --with-nss --without-"everything"
   

   /usr/src/ceph/src/os/bluestore/BlueStore.cc:1263: undefined reference to `rocksdb::Env::Default()'
   

4. --with-osd --with-rados --with-radosstriper --with-librocksdb-static --with-nss --without-"everything"
   

   => build ok