anchor.diff:          libsasl2-dev \
           libsnappy-dev \
           libssl-dev \
  -        libsnappy-dev \
           libtool \
           libzstd1-dev \
           locales \
  
positive.code: RUN apt-get -q update \
      && apt-get -q install -y --no-install-recommends \
          apt-utils \
          bats \
          build-essential \
          bzip2 \
          clang \
          cmake \
          curl \
          doxygen \
          fuse \
  
negative.code:     && apt-get clean \
      && rm -rf /var/lib/apt/lists/*
  
  
  ######
  # Install cmake 3.1.0 (3.5.1 ships with Xenial)
  ######
  RUN mkdir -p /opt/cmake \
      && curl -L -s -S \
        https://cmake.org/files/v3.1/cmake-3.1.0-Linux-x86_64.tar.gz \
        -o /opt/cmake.tar.gz \
      && tar xzf /opt/cmake.tar.gz --strip-components 1 -C /opt/cmake
  ENV CMAKE_HOME /opt/cmake
  ENV PATH "${PATH}:/opt/cmake/bin"
  
  ######
  # Install Google Protobuf 3.7.1 (2.6.0 ships with Xenial)
  ######
  # hadolint ignore=DL3003
  RUN mkdir -p /opt/protobuf-src \
  