error: 'PROTOBUF_FINAL' does not name a type

[gyz...@google.com]

I tried to build grpc and keep getting following error msgs.

****/grpc/gens/src/proto/grpc/reflection/v1alpha/reflection.pb.h:108:56: error: expected ';' at end of member declaration

   void CopyFrom(const ::google::protobuf::Message& from) PROTOBUF_FINAL;

                                                        ^

****/grpc/gens/src/proto/grpc/reflection/v1alpha/reflection.pb.h:108:58: error: 'PROTOBUF_FINAL' does not name a type

   void CopyFrom(const ::google::protobuf::Message& from) PROTOBUF_FINAL;

Anyone has idea of this issue?

Thanks

[Yuchen Zeng]

Looks like reflection.pb.h is generated by a newer version of protoc, but gRPC is complied with an older version of protobuf.