anchor.diff:      && make install \
       && cd /app/deps \
       && rm -Rf jansson-${JANSSON_VERSION}
  -ARG LIBJWT_VERSION="1.9.0"
  +ARG LIBJWT_VERSION="1.11.0"
   RUN curl -o libjwt-v${LIBJWT_VERSION}.tar.gz -L \
           "https://github.com/benmcollins/libjwt/archive/v${LIBJWT_VERSION}.tar.gz" \
       && tar -xvzf libjwt-v${LIBJWT_VERSION}.tar.gz \
  
positive.code:     && make install
  
  
  FROM debian:stretch
  ENV LANG C.UTF-8
  ENV LANGUAGE C.UTF-8
  ENV LC_ALL C.UTF-8
  
negative.code: FROM debian:buster
  ENV LANG C.UTF-8
  ENV LANGUAGE C.UTF-8
  ENV LC_ALL C.UTF-8
  