anchor.diff:      --prefix=/usr && \
     make -j$(nproc) install && \
     rm -rf *
  +WORKDIR /usr/src
  +
  +# Build and install Ninja from source
  +RUN git clone https://github.com/martine/ninja.git && \
  +  cd ninja && \
  +  git checkout v1.5.3 && \
  +  python ./configure.py --bootstrap && \
  +  ./ninja && \
  +  cp ./ninja /usr/bin/
  
positive.code:   libssl-dev \
    make \
    ncurses-dev \
    ninja-build \
    pkg-config \
    rsync \
    sed \
    tar \
  
negative.code: WORKDIR /usr/src
  # nighty-master 2015-05-04
  RUN git clone git://cmake.org/cmake.git CMake && \
    cd CMake && \
    git checkout 6cd6d50871ce28d0c72336a6aca01814487df5e1
  RUN mkdir CMake-build
  WORKDIR /usr/src/CMake-build
  RUN /usr/src/CMake/bootstrap \
  