Change Details

``` cd native/cpp/CommonCpp/grpc/ mkdir build cd build make -j # do initial build # somehow modify the files touch ../protos/blob.proto make -j # assert that only blob is being rebuilt # assert that no files have changes git status # assert that build is idempotent make -j ```

``` cd native/cpp/CommonCpp/grpc/ mkdir build cd build make -j # do initial build # somehow modify the files touch ../protos/blob.proto make -j # assert that only blob is being rebuilt # assert that no files have changed git status # assert that build is idempotent make -j ```

``` cd native/cpp/CommonCpp/grpc/ mkdir build cd build make -j # do initial build # somehow modify the files touch ../protos/blob.proto make -j # assert that only blob is being rebuilt # assert that no files have changesd git status # assert that build is idempotent make -j ```