anchor.diff:           && update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-7 20 \
            && update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 8 \
            && update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 8 \
  -         # && update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 9 \
  -         # && update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 9 \
  +         #&& update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 9 \
  +         #&& update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 9 \
            && gcc --version \
            && g++ --version
   
  
positive.code: 
  # Build devevelopment image
  FROM        base as dev
  LABEL       stage=build
  RUN         apt-get install -y --no-install-recommends --allow-unauthenticated \
              build-essential \
              gcc-7 \
  
negative.code:          && curl -sL http://deb.nodesource.com/setup_8.x | bash - \
           && cat /etc/apt/sources.list.d/nodesource.list
  
  RUN         apt-get update && \
              # apt-get install --fix-broken && \
              apt-get -y dist-upgrade && \
              apt-get install -y --no-install-recommends --allow-unauthenticated \
              nodejs \
              yarn \
              #npm \
  