anchor.diff:  # Set CPATH for packages relying on compiled libs (e.g. indexed_gzip)
   ENV PATH="${CONDA_PATH}/bin:$PATH" \
       CPATH="${CONDA_PATH}/include:$CPATH" \
  -    LANG="C.UTF-8" \
  -    LC_ALL="C.UTF-8" \
       PYTHONNOUSERSITE=1
   
   # Installing conda/python environment
  
positive.code: # Pre-cache neurodebian key
  COPY docker/files/neurodebian.gpg /usr/local/etc/neurodebian.gpg
  ENV DEBIAN_FRONTEND="noninteractive" \
      LANG="en_US.UTF-8" \
      LC_ALL="en_US.UTF-8"
  
  # Prepare environment
  RUN apt-get update && \
  
negative.code: RUN echo "Downloading FSL ..." \
      && mkdir -p /opt/fsl-5.0.11 \
      && curl -fsSL --retry 5 https://fsl.fmrib.ox.ac.uk/fsldownloads/fsl-5.0.11-centos6_64.tar.gz \
      | tar -xz -C /opt/fsl-5.0.11 --strip-components 1 \
      && echo "Installing FSL conda environment ..." \
      && bash /opt/fsl-5.0.11/etc/fslconf/fslpython_install.sh -f /opt/fsl-5.0.11
  ENV FSLDIR="/opt/fsl-5.0.11" \
      PATH="/opt/fsl-5.0.11/bin:$PATH" \
  