anchor.diff:        git \
         imagemagick \
         iputils-tracepath \
  -      language-pack-aa \
  -      language-pack-af \
  -      language-pack-am \
  -      language-pack-an \
  -      language-pack-ar \
  -      language-pack-as \
  -      language-pack-ast \
  -      language-pack-az \
  -      language-pack-be \
  -      language-pack-bem \
  -      language-pack-ber \
  -      language-pack-bg \
  -      language-pack-bho \
  -      language-pack-bn \
  -      language-pack-bo \
  -      language-pack-br \
  -      language-pack-bs \
  -      language-pack-ca \
  -      language-pack-crh \
  -      language-pack-cs \
  -      language-pack-csb \
  -      language-pack-cv \
  -      language-pack-cy \
  -      language-pack-da \
  -      language-pack-de \
  -      language-pack-dv \
  -      language-pack-dz \
  -      language-pack-el \
         language-pack-en \
  -      language-pack-eo \
  -      language-pack-es \
  -      language-pack-et \
  -      language-pack-eu \
  -      language-pack-fa \
  -      language-pack-ff \
  -      language-pack-fi \
  -      language-pack-fil \
  -      language-pack-fo \
  -      language-pack-fr \
  -      language-pack-fur \
  -      language-pack-fy \
  -      language-pack-ga \
  -      language-pack-gd \
  -      language-pack-gl \
  -      language-pack-gu \
  -      language-pack-gv \
  -      language-pack-ha \
  -      language-pack-he \
  -      language-pack-hi \
  -      language-pack-hne \
  -      language-pack-hr \
  -      language-pack-hsb \
  -      language-pack-ht \
  -      language-pack-hu \
  -      language-pack-hy \
  -      language-pack-ia \
  -      language-pack-id \
  -      language-pack-ig \
  -      language-pack-is \
  -      language-pack-it \
  -      language-pack-ja \
  -      language-pack-ka \
  -      language-pack-kk \
  -      language-pack-kl \
  -      language-pack-km \
  -      language-pack-kn \
  -      language-pack-ko \
  -      language-pack-ks \
  -      language-pack-ku \
  -      language-pack-kw \
  -      language-pack-ky \
  -      language-pack-lb \
  -      language-pack-lg \
  -      language-pack-li \
  -      language-pack-lo \
  -      language-pack-lt \
  -      language-pack-lv \
  -      language-pack-mai \
  -      language-pack-mg \
  -      language-pack-mhr \
  -      language-pack-mi \
  -      language-pack-mk \
  -      language-pack-ml \
  -      language-pack-mn \
  -      language-pack-mr \
  -      language-pack-ms \
  -      language-pack-mt \
  -      language-pack-my \
  -      language-pack-nan \
  -      language-pack-nb \
  -      language-pack-nds \
  -      language-pack-ne \
  -      language-pack-nl \
  -      language-pack-nn \
  -      language-pack-nso \
  -      language-pack-oc \
  -      language-pack-om \
  -      language-pack-or \
  -      language-pack-os \
  -      language-pack-pa \
  -      language-pack-pap \
  -      language-pack-pl \
  -      language-pack-ps \
  -      language-pack-pt \
  -      language-pack-ro \
  -      language-pack-ru \
  -      language-pack-rw \
  -      language-pack-sa \
  -      language-pack-sc \
  -      language-pack-sd \
  -      language-pack-se \
  -      language-pack-shs \
  -      language-pack-si \
  -      language-pack-sk \
  -      language-pack-sl \
  -      language-pack-so \
  -      language-pack-sq \
  -      language-pack-sr \
  -      language-pack-ss \
  -      language-pack-st \
  -      language-pack-sv \
  -      language-pack-sw \
  -      language-pack-ta \
  -      language-pack-te \
  -      language-pack-tg \
  -      language-pack-th \
  -      language-pack-ti \
  -      language-pack-tk \
  -      language-pack-tl \
  -      language-pack-tr \
  -      language-pack-ts \
  -      language-pack-tt \
  -      language-pack-ug \
  -      language-pack-uk \
  -      language-pack-ur \
  -      language-pack-uz \
  -      language-pack-ve \
  -      language-pack-vi \
  -      language-pack-wa \
  -      language-pack-wae \
  -      language-pack-wo \
  -      language-pack-xh \
  -      language-pack-yi \
  -      language-pack-yo \
  -      language-pack-zh-hans \
  -      language-pack-zh-hant \
  -      language-pack-zu \
         libbz2-dev \
         libcurl4-openssl-dev \
         libevent-dev \
  
positive.code:       zlib1g-dev \
        pigz &&\
  
      # Workaround for CVE-2016–3714 until new ImageMagick packages come out.
      echo '<policymap> <policy domain="coder" rights="none" pattern="EPHEMERAL" /> <policy domain="coder" rights="none" pattern="URL" /> <policy domain="coder" rights="none" pattern="HTTPS" /> <policy domain="coder" rights="none" pattern="MVG" /> <policy domain="coder" rights="none" pattern="MSL" /> <policy domain="coder" rights="none" pattern="TEXT" /> <policy domain="coder" rights="none" pattern="SHOW" /> <policy domain="coder" rights="none" pattern="WIN" /> <policy domain="coder" rights="none" pattern="PLT" /> </policymap>' > /etc/ImageMagick/policy.xml &&\
  
      rm /etc/ssh/ssh_host_*
  
negative.code: FROM ubuntu:trusty-20160217
  
  # Derived from https://github.com/heroku/stack-images/blob/master/bin/cedar-14.sh
  
  RUN echo 'deb http://archive.ubuntu.com/ubuntu trusty main' >/etc/apt/sources.list &&\
      echo 'deb http://archive.ubuntu.com/ubuntu trusty-security main' >>/etc/apt/sources.list &&\
  