040000 tree b37fa641ab9a4bbf37f51ec1d416129b08636634	cpplint
040000 tree 0b1028bb1b03f1a1e5d7e08581aa729c6a449feb	farmhash
040000 tree 7be093c437d1b98faf93307362a7eeabcdc0327c	iwyu
160000 commit bba83652e1be610bdb7ee1566ad18346d98b843c	protobuf
040000 tree ec3d93bb7458febaae54ed86ad232f16e4570964	protobuf_cmake
040000 tree e10d456fb335195f0f6f0b07a494cc018c5931c1	tmb