anchor.diff:      libxml2-dev \
       pkg-config \
       zlib1g-dev \
  -  && curl https://www.imagemagick.org/download/ImageMagick-6.9.8-0.tar.xz \
  +  && curl https://www.imagemagick.org/download/ImageMagick-6.9.8-9.tar.xz \
       | tar xJ \
     && cd $(ls -d ImageMagick-* | head -n 1) \
     && ./configure \
  
positive.code:     libjemalloc-dev \
      libncurses-dev \
      python-docutils \
    && curl https://repo.varnish-cache.org/source/varnish-5.0.0.tar.gz \
      | tar xz \
    && cd $(ls -d varnish-* | head -n 1) \
    && ./configure \
  
negative.code:   && apt-get install --assume-yes \
      libpam-dev \
      ucspi-tcp \
    && curl https://mmonit.com/monit/dist/monit-5.23.0.tar.gz \
      | tar xz \
    && cd $(ls -d monit-* | head -n 1) \
    && ./configure \
  