040000 tree b37fa641ab9a4bbf37f51ec1d416129b08636634	cpplint
040000 tree 0b1028bb1b03f1a1e5d7e08581aa729c6a449feb	farmhash
040000 tree 6c64274ced7e0db412c66aa69b718e0b578bdf6d	iwyu
160000 commit bba83652e1be610bdb7ee1566ad18346d98b843c	protobuf
040000 tree ec3d93bb7458febaae54ed86ad232f16e4570964	protobuf_cmake
040000 tree f7f0315cfde5ad1746557fdb4660b28a8bf8371a	tmb