anchor.diff:  ENV BASICUSER_UID 1000
   
   RUN useradd -m -d $HOME -s /bin/bash -N -u $BASICUSER_UID $BASICUSER && \
  -    mkdir $SOFT && \
  -    chown -R $BASICUSER $HOME && \
  -    echo "export SOFT=\$HOME/soft" >> $BASHRC
  +    mkdir $SOFT
   USER $BASICUSER
   WORKDIR $HOME
   
  
positive.code: # neurodebian and Install.
  USER root
  RUN \
      apt-get update && \
      apt-get install -y wget bzip2 unzip htop curl git && \
      wget -O- $NEURODEBIAN_URL | tee /etc/apt/sources.list.d/neurodebian.sources.list && \
  
negative.code:           -DPYTHON_LIBRARY=/usr/lib/x86_64-linux-gnu/libpython2.7m.so.1 \
            ../VTK && \
      make -j $N_CPUS && \
      make install
  
  #-------------------------------------------------------------------------------
  # AFNI
  # https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/background_install/install_instructs/steps_linux_ubuntu.html#install-steps-linux-ubuntu
  #-------------------------------------------------------------------------------
  WORKDIR $SOFT
  RUN \
      wget -c $LIBXP_URL && \
      dpkg -i `basename $LIBXP_URL` && \
      apt-get install -f  && \
      curl -O $AFNI_URL && \
      chsh -s /usr/bin/tcsh && \
      tcsh @update.afni.binaries -package linux_openmp_64 -do_extras && \
      chsh -s /bin/bash && \
      cp $HOME/abin/AFNI.afnirc $HOME/.afnirc && \
      echo "addpath \$HOME/abin" >> $BASHRC && \
      chown -R $BASICUSER $HOME/abin
  
  
  #-------------------------------------------------------------------------------
  ## Here start the libraries that won't be installed in /usr/local
  USER $BASICUSER
  
  #-------------------------------------------------------------------------------
  # ITK
  