anchor.diff:    xserver-xorg-input-void \
     libxt-dev \
     zlib1g-dev
  -
  -RUN pip3 install ipywidgets
   
   # Build and install CMake from source.
   WORKDIR /usr/src
  
positive.code: FROM thewtex/jupyter-notebook-debian:latest
  MAINTAINER Matt McCormick <matt.mccormick@kitware.com>
  
  USER root
  
negative.code:     -DITKGroup_IO:BOOL=ON \
      -DModule_ITKHDF5:BOOL=ON \
      -DITK_WRAP_PYTHON:BOOL=ON \
      -DITK_USE_FFTWD:BOOL=ON \
      -DITK_USE_FFTWF:BOOL=ON \
      -DITK_USE_SYSTEM_FFTW:BOOL=ON \
  