anchor.diff:          cd build && \
           cmake -DITK_DIR=$HOME/ants/build/ITKv4-build && \
           make -j $N_CPUS && \
  -        cd ../.. \
  +        cd ../..; \
       fi
   
   RUN echo "addapath $HOME/petpvc/build/src" >> $BASHRC
  
positive.code:               ../VTK && \
          make -j $N_CPUS && \
          make install && \
          cd ../.. \
      fi
  
  RUN echo "addlibpath $pwd/vtk/build/lib" >> $BASHRC
  
negative.code:         cmake -DUSE_VTK=ON -DUSE_SYSTEM_VTK=ON -DVTK_DIR=$HOME/vtk/build && \
          make -j $N_CPUS && \
          make install && \
          cd ../..; \
      fi
  
  RUN \
  