anchor.diff:                  -DENABLE_PYMOAB=ON ; \
                   -DENABLE_BLASLAPACK=OFF ; \
                   -DENABLE_FORTRAN=OFF ; \
  -                -DCMAKE_INSTALL_PREFIX=$HOME/MOAB ; \
  +                -DCMAKE_INSTALL_PREFIX=/MOAB ; \
       make -j4; \
  +    make install ; \
  +    fi
  +
  +
  +# Clone and install double-down
  +RUN if [ "$include_dagmc" = "true" ] ; \
  +    then echo installing double-down ; \
  +    # git clone https://github.com/pshriwise/double-down ; \
  +    cd double-down ; \
  +    mkdir build ; \
  +    cd build ; \
  +    cmake .. -DCMAKE_INSTALL_PREFIX=.. ; \
  +        -DMOAB_DIR=/MOAB ; \
  +        -DEMBREE_DIR=/embree ; \
  +        -DEMBREE_ROOT=/embree ; \
  +    make ; \
       make install ; \
       fi
   
  
positive.code:     mkdir -p build ; \
      cd build ; \
      cmake -Doptimize=on -DHDF5_PREFER_PARALLEL=on .. ; \
      make  ; \
      make install ; \
      cd ..  ; \
      pip install -e .[test] ; \
  
negative.code:     apt-get --yes install liblapack-dev ; \
      apt-get --yes install libnetcdf-dev ; \
      #apt-get --yes install libnetcdf13 ; \
      apt-get --yes install libtbb-dev ; \
      apt-get --yes install libglfw3-dev ; \
      fi
  
  # perhaps not needed#
  # ENV LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/hdf5/serial:$LD_LIBRARY_PATH
  
  RUN git clone https://github.com/embree/embree
  RUN git clone https://github.com/pshriwise/double-down
  RUN git clone -b develop https://github.com/svalinn/dagmc
  RUN git clone --recurse-submodules https://github.com/openmc-dev/openmc.git
  RUN cd $HOME && \
      mkdir MOAB && \
      cd MOAB && \
      git clone  --single-branch --branch develop https://bitbucket.org/fathomteam/moab/
  
  
  RUN apt-get --yes install  
  
  
  # Clone and install Embree
  RUN if [ "$include_dagmc" = "true" ] ; \
      then echo installing embree ; \
      # git clone https://github.com/embree/embree ; \
      cd embree ; \
      mkdir build ; \
      cd build ; \
      cmake .. -DCMAKE_INSTALL_PREFIX=.. \
          -DEMBREE_ISPC_SUPPORT=OFF ; \
      make ; \
      make install ; \
      fi
  
  
  # Clone and install MOAB
  RUN if [ "$include_dagmc" = "true" ] ; \
      then mkdir MOAB ; \
      mkdir build ; \
      cd MOAB ; \
      # git clone --depth 1 https://bitbucket.org/fathomteam/moab -b develop ; \
      cd build ; \
      cmake ../moab -DENABLE_HDF5=ON ; \
                  -DENABLE_NETCDF=ON ; \
                  -DBUILD_SHARED_LIBS=OFF ; \
                  -DENABLE_FORTRAN=OFF ; \
                  -DCMAKE_INSTALL_PREFIX=/MOAB ; \
      make -j4; \
      make install ; \
      rm -rf * ; \
  