anchor.diff:      && dpkg-divert --divert /usr/bin/g++.orig --rename /usr/bin/g++ \
       && dpkg-divert --divert /usr/bin/gfortran.orig --rename /usr/bin/gfortran \
       && update-alternatives --install /usr/bin/cc cc /usr/local/bin/gcc 999 \
  -    && cd ../.. \
  +    && cd \
  +    && rm -rf OpenCoarrays* opencoarrays* \
  +    && apt-get purge -y --auto-remove $transientBuildDeps \
  +    && rm -rf /var/lib/apt/lists/* /var/log/* /tmp/*
  +
  +RUN DEBIAN_FRONTEND=noninteractive transientBuildDeps="apt-utils dpkg-dev libfile-pushd-perl" \
  +    && set -v \
  +    && echo "$DEBIAN_FRONTEND" \
  +    && apt-get update && apt-get -t jessie-backports install -yq --no-install-recommends --no-install-suggests \
  +    $transientBuildDeps \
  +    && wget https://github.com/sourceryinstitute/opencoarrays/releases/download/${OPENCOARRAYS_VERSION}/OpenCoarrays-${OPENCOARRAYS_VERSION}.tar.gz \
  +    && wget https://github.com/sourceryinstitute/opencoarrays/releases/download/${OPENCOARRAYS_VERSION}/opencoarrays-${OPENCOARRAYS_VERSION}-SHA256.txt \
  +    && sha256sum -c opencoarrays-${OPENCOARRAYS_VERSION}-SHA256.txt \
  +    && tar xzvf OpenCoarrays-${OPENCOARRAYS_VERSION}.tar.gz \
  +    && cd OpenCoarrays-${OPENCOARRAYS_VERSION} \
       && ./install.sh --yes-to-all --package mpich -j "$(nproc)" -c /usr/local/bin/gcc -f /usr/local/bin/gfortran -C /usr/local/bin/g++ --install-prefix /usr/local \
  -    && rm -rf ./prerequisites/{builds,downloads}/* \
  +    && cd \
  +    && rm -rf OpenCoarrays* opencoarrays* \
  +    && apt-get purge -y --auto-remove $transientBuildDeps \
  +    && rm -rf /var/lib/apt/lists/* /var/log/* /tmp/*
  +
  +RUN DEBIAN_FRONTEND=noninteractive transientBuildDeps="apt-utils cmake dpkg-dev libfile-pushd-perl" \
  +    && set -v \
  +    && echo "$DEBIAN_FRONTEND" \
  +    && apt-get update && apt-get -t jessie-backports install -yq --no-install-recommends --no-install-suggests \
  +    $transientBuildDeps \
  +    && cmake --version \
  +    && wget https://github.com/sourceryinstitute/opencoarrays/releases/download/${OPENCOARRAYS_VERSION}/OpenCoarrays-${OPENCOARRAYS_VERSION}.tar.gz \
  +    && wget https://github.com/sourceryinstitute/opencoarrays/releases/download/${OPENCOARRAYS_VERSION}/opencoarrays-${OPENCOARRAYS_VERSION}-SHA256.txt \
  +    && sha256sum -c opencoarrays-${OPENCOARRAYS_VERSION}-SHA256.txt \
  +    && tar xzvf OpenCoarrays-${OPENCOARRAYS_VERSION}.tar.gz \
  +    && cd OpenCoarrays-${OPENCOARRAYS_VERSION} \
       && echo "Installing OpenCoarrays using CMake in $(pwd)" \
       && mkdir build \
       && cd build \
  
positive.code:     libmpc-dev \
      libtool \
      $transientBuildDeps \
      && cmake --version \
      && wget https://github.com/sourceryinstitute/opencoarrays/releases/download/${OPENCOARRAYS_VERSION}/OpenCoarrays-${OPENCOARRAYS_VERSION}.tar.gz \
      && wget https://github.com/sourceryinstitute/opencoarrays/releases/download/${OPENCOARRAYS_VERSION}/opencoarrays-${OPENCOARRAYS_VERSION}-SHA256.txt \
      && sha256sum -c opencoarrays-${OPENCOARRAYS_VERSION}-SHA256.txt \
  
negative.code: 
  ARG OPENCOARRAYS_VERSION=1.9.0
  
  RUN DEBIAN_FRONTEND=noninteractive transientBuildDeps="apt-utils bison dpkg-dev flex gcc gfortran g++ libfile-pushd-perl" \
      && set -v \
      && echo "$DEBIAN_FRONTEND" \
      && echo "deb http://httpredir.debian.org/debian jessie-backports main" >> /etc/apt/sources.list \
  