anchor.diff:  RUN \
       mkdir vtk && \
       cd vtk && \
  -    git clone https://gitlab.kitware.com/vtk/vtk.git -b $VTK_VERSION VTK && \
  +    git clone $VTK_GIT -b $VTK_VERSION VTK && \
       mkdir build && \
       cd build && \
       cmake -DPYTHON_EXECUTABLE=/usr/bin/python2.7 \
  
positive.code: # RUN \
  #     mkdir itk && \
  #     cd itk && \
  #     git clone http://itk.org/ITK.git -b $ITK_VERSION && \
  #     mkdir build && \
  #     cd build && \
      # cmake -DPYTHON_EXECUTABLE=/usr/bin/python2.7 \
  
negative.code: RUN \
      mkdir ants && \
      cd ants && \
      git clone $ANTS_GIT -b $ANTS_VERSION && \
      mkdir build && \
      cd build && \
      cmake -DUSE_VTK=ON \
  