anchor.diff:  
   ARG PARALLEL=2
   WORKDIR /app/deps
  -ARG CPPCMS_VERSION="1.2.0"
  +ARG CPPCMS_VERSION="1.2.1"
   RUN curl -o cppcms-${CPPCMS_VERSION}.tar.bz -L \
           "https://sourceforge.net/projects/cppcms/files/cppcms/${CPPCMS_VERSION}/cppcms-${CPPCMS_VERSION}.tar.bz2/download" \
       && tar -xjvf cppcms-${CPPCMS_VERSION}.tar.bz \
  
positive.code: FROM debian:stretch
  ENV LANG C.UTF-8
  ENV LANGUAGE C.UTF-8
  ENV LC_ALL C.UTF-8
  
negative.code: RUN apt-get update && apt-get install -y \
           libasan3 \
           libubsan0 \
           libboost-system1.67.0 \
           libboost-filesystem1.67.0 \
           libboost-thread1.67.0 \
           libssl1.1 \
           libicu63 \
           libyajl2 \
           pwgen \
      && rm -rf /var/lib/apt/lists/*
  