anchor.diff:      && curl -sL https://deb.nodesource.com/setup_6.x | bash \
       && locale-gen en_US.UTF-8 \
       && update-locale LANG=en_US.UTF-8
  -
  +    
   # Install dependencies and PostGIS 2.4 from sources
   RUN set -ex \
       && apt-get update \
  
positive.code: FROM ubuntu:xenial
  
  # Use UTF8 to avoid encoding problems with pgsql
  ENV LANG C.UTF-8
  
negative.code:     && make install \
      && cd .. \
      && rm -rf postgis-2.4.0 \
      && wget http://download.redis.io/redis-stable.tar.gz \
      && tar xvzf redis-stable.tar.gz \
      && cd redis-stable \
      && make \
      && make install \
      && cd .. \
      && rm redis-stable.tar.gz \
      && rm -R redis-stable \
      && cd /lib \
      && wget https://github.com/brandur/redis-cell/releases/download/v0.2.1/redis-cell-v0.2.1-x86_64-unknown-linux-gnu.tar.gz \
      && tar xvzf redis-cell-v0.2.1-x86_64-unknown-linux-gnu.tar.gz \
      && rm redis-cell-v0.2.1-x86_64-unknown-linux-gnu.tar.gz \
      && apt-get purge -y wget protobuf-c-compiler \
      && apt-get autoremove -y
  
  