anchor.diff:  
   # Setup environment variables for Docker image
   ENV FC=/usr/bin/mpif90 CC=/usr/bin/mpicc CXX=/usr/bin/mpicxx \
  -    PATH=/opt/openmc/bin:/opt/conda/bin:/opt/NJOY2016/build:$PATH \
  +    PATH=/opt/openmc/bin:/opt/NJOY2016/build:$PATH \
       LD_LIBRARY_PATH=/opt/openmc/lib:$LD_LIBRARY_PATH \
       OPENMC_CROSS_SECTIONS=/root/nndc_hdf5/cross_sections.xml \
       OPENMC_MULTIPOLE_LIBRARY=/root/WMP_Library \
  
positive.code:     cmake -Dstatic=on .. && make 2>/dev/null && make install
  
  # Clone and install OpenMC
  RUN git clone https://github.com/wbinventor/openmc.git /opt/openmc && \
      cd /opt/openmc && git checkout docker && mkdir -p build && cd build && \
      cmake  -Doptimize=on -DHDF5_PREFER_PARALLEL=on .. && \
      make && make install && \
      cd .. && pip3 install -e .[test]
  
  # Download cross sections (NNDC and WMP) and ENDF data needed by test suite
  #RUN ./opt/openmc/docker/docker-download-xs.sh
  RUN ./opt/openmc/tools/ci/download-xs.sh
negative.code:     apt-get install -y imagemagick && \
      apt-get autoremove
  
  # Update system-provided pip
  RUN pip3 install --upgrade pip
  
  # Clone and install NJOY2016
  RUN git clone https://github.com/njoy/NJOY2016 /opt/NJOY2016 && \
  