Seastar cryptopp not found

Hello everyone, I m building ceph cmake command but it is giving error with following message "could not find crptopp_LIBRARY and crytopp_INCLUDE" crytopp is defined in "SeastarDependencies.cmake" with other dependencies like protobuf(this is also not building), yaml-cpp etc I built this branch on latest ceph repo, any kind of hint will be helpful. Thanks. Regards