anchor.diff:          liblua5.2-0 \
           mercurial \
           postgresql \
  -        postgresql-server-dev-9.4 \
  +        postgresql-server-dev-11 \
           python-pip \
           pmake \
           libbsd-dev \
  
positive.code:         liblua5.2-dev \
          libpq-dev \
          mercurial \
          postgresql-server-dev-9.4 \
          python-pip \
      && apt-get -y autoremove \
      && apt-get clean
  
negative.code: #
  # Build moonbridge
  #
  
  RUN cd /opt/lf/sources/moonbridge-v${LF_MOONBRIDGE_VERSION} \
      && pmake MOONBR_LUA_PATH=/opt/lf/moonbridge/?.lua \
      && mkdir /opt/lf/moonbridge \
  