anchor.diff:  
   RUN cd $NDIR/iv; ./build.sh; ./configure --prefix=`pwd` --with-x --x-includes=/usr/include/ --x-libraries=/usr/lib/ && make && make install
   
  -#RUN cd $NDIR/nrn; sh src/nrnmpi/mkdynam.sh; ./build.sh; 
  -RUN cd $NDIR/nrn; ./build.sh; 
  +#RUN cd $NDIR/nrn; sh src/nrnmpi/mkdynam.sh; ./build.sh;
  +RUN cd $NDIR/nrn; ./build.sh;
   RUN cd $NDIR/nrn; 2to3 -w src/oc/mk_hocusr_h.py; sed -i '1i from __future__ import print_function' src/oc/mk_hocusr_h.py
   RUN cd $NDIR/nrn; sudo sed -i.bak -e "s/print sys.api_version,/from __future__ import print_function; print(sys.api_version)/" configure
   # --with-music=/usr/local
  
positive.code: 
  # libav-tools for matplotlib anim
  RUN apt-get update && \
  	apt-get install -y --no-install-recommends libav-tools && \
  	apt-get install -y git \
  					   gcc \
  					   g++ \
  					   gfortran \
  					   libatlas-dev \
  					   libatlas-base-dev \
  					   libfreetype6-dev && \
  	apt-get clean && \
  	rm -rf /var/lib/apt/lists/*
  # Official Debian and Ubuntu images automatically run apt-get clean
  
  ### Change locale to en_GB
  # https://github.com/jupyter/docker-stacks/blob/master/minimal-notebook/Dockerfile
  
  RUN echo "en_GB.UTF-8 UTF-8" > /etc/locale.gen && \ 
  	locale-gen 
  
  ENV LC_ALL en_GB.UTF-8
  ENV LANG en_GB.UTF-8
  
negative.code: #USER root
  # Dependencies
  RUN apt-get update && \
    apt-get -y install autotools-dev \
               autoconf \
               automake \
               libtool \
               bison \
               flex \
               xfonts-100dpi \
               libncurses5-dev \
               libxext-dev \
               libreadline-dev \
               libopenmpi-dev \
               openmpi-bin \
               openmpi-doc \
               openmpi-common \
               liblapack-dev \
               libblas-dev \
               libxft-dev \
               mercurial \
               mercurial-common
  
  ENV NDIR /opt/neuron
  ENV NRNPY python3
  