anchor.diff:      && ln -sf $EJABBERD_HOME/conf /etc/ejabberd \
       && chown -R $EJABBERD_USER: $EJABBERD_HOME \
       && rm -rf /var/lib/apt/lists/* \
  -	&& apt-get purge -y --auto-remove $buildDeps
  +    && apt-get purge -y --auto-remove $buildDeps
   
   # Wrapper for setting config on disk from environment
   # allows setting things like XMPP domain at runtime
  
positive.code: 
  # Install packages and perform cleanup
  RUN set -x \
  	&& buildDeps=' \
          git-core \
          build-essential \
          automake \
  
negative.code:         erlang-parsetools erlang-percept erlang-typer \
          python-mysqldb \
          imagemagick \
      ' \
      && apt-key adv \
          --keyserver keys.gnupg.net \
          --recv-keys 434975BD900CCBE4F7EE1B1ED208507CA14F4FCA \
      && apt-get update \
      && apt-get install -y $buildDeps $requiredAptPackages --no-install-recommends \
      && dpkg-reconfigure locales && \
          locale-gen C.UTF-8 \
      && /usr/sbin/update-locale LANG=C.UTF-8 \
      && echo 'en_US.UTF-8 UTF-8' >> /etc/locale.gen \
  