anchor.diff:  # Build
   RUN mkdir /opt/openMVG_Build && cd /opt/openMVG_Build && cmake -DCMAKE_BUILD_TYPE=RELEASE \
     -DCMAKE_INSTALL_PREFIX="/opt/openMVG_Build/install" -DOpenMVG_BUILD_TESTS=ON \
  -  -DOpenMVG_BUILD_EXAMPLES=ON . ../openMVG/src/ && make
  +  -DOpenMVG_BUILD_EXAMPLES=ON . ../openMVG/src/ && make -j 4
   
   RUN cd /opt/openMVG_Build && make test
  
positive.code:   python-dev \  
    python-pip
  
  # Clone the openvMVG repo 
  ADD . /opt/openMVG
  RUN cd /opt/openMVG && git submodule update --init --recursive
  
negative.code: # Get dependencies
  RUN apt-get update && apt-get install -y \
    build-essential \
    graphviz \
    git \
    gcc-4.8 \ 
  