/tmp/buildd/mir-0.15.0bzr2839pkg0wily692/obj-x86_64-linux-gnu/src/protobuf/mir_protobuf.pb.cc:13323: undefined reference to `google::protobuf::internal::WireFormatLite::ReadString(google::protobuf::io::CodedInputStream*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*)'
CMakeFiles/mirprotobuf.dir/mir_protobuf.pb.cc.o:(.data.rel.ro._ZTVN3mir8protobuf17ConnectParametersE[_ZTVN3mir8protobuf17ConnectParametersE]+0x40): undefined reference to `google::protobuf::MessageLite::InitializationErrorString[abi:cxx11]() const'
CMakeFiles/mirprotobuf.dir/mir_protobuf.pb.cc.o:(.data.rel.ro._ZTVN3mir8protobuf17SurfaceParametersE[_ZTVN3mir8protobuf17SurfaceParametersE]+0x40): undefined reference to `google::protobuf::MessageLite::InitializationErrorString[abi:cxx11]() const'
CMakeFiles/mirprotobuf.dir/mir_protobuf.pb.cc.o:(.data.rel.ro._ZTVN3mir8protobuf18SurfaceAspectRatioE[_ZTVN3mir8protobuf18SurfaceAspectRatioE]+0x40): undefined reference to `google::protobuf::MessageLite::InitializationErrorString[abi:cxx11]() const'
CMakeFiles/mirprotobuf.dir/mir_protobuf.pb.cc.o:(.data.rel.ro._ZTVN3mir8protobuf20SurfaceSpecificationE[_ZTVN3mir8protobuf20SurfaceSpecificationE]+0x40): undefined reference to `google::protobuf::MessageLite::InitializationErrorString[abi:cxx11]() const'
CMakeFiles/mirprotobuf.dir/mir_protobuf.pb.cc.o:(.data.rel.ro._ZTVN3mir8protobuf19StreamConfigurationE[_ZTVN3mir8protobuf19StreamConfigurationE]+0x40): undefined reference to `google::protobuf::MessageLite::InitializationErrorString[abi:cxx11]() const'
CMakeFiles/mirprotobuf.dir/mir_protobuf.pb.cc.o:(.data.rel.ro._ZTVN3mir8protobuf20SurfaceModificationsE[_ZTVN3mir8protobuf20SurfaceModificationsE]+0x40): more undefined references to `google::protobuf::MessageLite::InitializationErrorString[abi:cxx11]() const' follow
collect2: error: ld returned 1 exit status