anchor.diff:  RUN cd /root && unzip opencv.zip && unzip contrib.zip
   RUN mkdir /root/opencv-$OPENCV_VERSION/build && cd /root/opencv-$OPENCV_VERSION/build && \
       cmake .. -G"Ninja" -DCMAKE_BUILD_TYPE=RELEASE \
  -    -DENABLE_CXX11=ON -DOPENCV_ENABLE_NONFREE=ON -DWITH_TBB=ON\
  +    -DENABLE_CXX11=ON -DOPENCV_ENABLE_NONFREE=ON -DCUDA_HOST_COMPILER=/usr/bin/g++ \
       -DOPENCV_EXTRA_MODULES_PATH=/root/opencv_contrib-$OPENCV_VERSION/modules \
       -DPYTHON_EXECUTABLE=$(which python3) && \
       ninja && ninja install
   RUN cp /root/opencv-$OPENCV_VERSION/build/lib/python3/cv2.cpython-35m-x86_64-linux-gnu.so /usr/local/lib/python3.5/dist-packages/
  -# cuda_host = /usr/bin/g++
   
   # Julia
   
  -ARG JULIA_URL="https://julialang-s3.julialang.org/bin/linux/x64/0.6/julia-0.6.1-linux-x86_64.tar.gz"
  -ARG JULIA_PATH="julia-0d7248e2ff"
  +ARG JULIA_URL="https://julialang-s3.julialang.org/bin/linux/x64/0.6/julia-0.6.2-linux-x86_64.tar.gz"
  +ARG JULIA_PATH="julia-d386e40c17"
   RUN cd /root && wget -O julia.tar.gz ${JULIA_URL} && tar xzf julia.tar.gz
  -# mv /root/julia... /opt/...
  -RUN ln -s /root/$JULIA_PATH/bin/julia /usr/local/bin/julia
  -RUN chmod +rx /root/$JULIA_PATH/*
  +RUN mv /root/$JULIA_PATH/ /opt/julia && chown -R root.root /opt/julia && chmod -R +rx /opt/julia
  +RUN ln -s /opt/julia/bin/julia /usr/local/bin/julia
   RUN julia -e 'Pkg.update()'
   RUN julia -e 'Pkg.add("IJulia")'
   
  
positive.code:                     libtiff-devel \
                      libv4l-devel
  
  # libx11-dev libgtk2.0-dev
  # libavcodec-dev libavutil-dev libavformat-dev libswscale-dev
  # libboost-python-dev
  
  # Ninja builder
  
  RUN cd /tmp/ && wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm && \
     rpm -ivh epel-release-latest-7.noarch.rpm \
  RUN yum -y --enablerepo=epel install ninja-build && \
     echo "alias ninja='ninja-build'" >> /etc/bashrc
  
  # Fish
  
  
negative.code: RUN echo "source scl_source enable rh-git29" >> /etc/bashrc
  
  RUN yum install -y qt5*devel
  RUN yum install -y gtk2-devel
  
  RUN yum install -y  blas-devel \
                      lapack-devel \
  