anchor.diff:  RUN apt install -y g++
   RUN apt install -y git
   RUN apt install -y ssh
  +RUN apt install -y build-essential
  +RUN apt install -y libtool
  +RUN apt install -y libpcre3-dev
  +RUN apt install -y libpcre3
   # Windows toolchain
   RUN apt install -y g++-mingw-w64-x86-64
   # Linux Toolchain
  
positive.code: RUN apt install -y emacs-nox
  
  ENV LIBTORRENT_REVISION="RC_1_2_ad2a6d7"
  ENV BOOST_MAJOR="1"
  ENV BOOST_VERSION="73"
  ENV BOOST_MINOR="0"
  
negative.code: 
  # third party SRC folder
  RUN mkdir src
  
  # prepare swig 4.0.2
  RUN cd /src \
  		&& wget -nv https://dl.frostwire.com/other/swig/swig-${SWIG_VERSION}.tar.gz \
  		&& tar xzf swig-${SWIG_VERSION}.tar.gz \
  		&& cd /src/swig-${SWIG_VERSION} \
  		&& ./configure \
  		&& make -j 8 \
      && make install
  
  RUN swig -version
  
  # prepare_boost
  RUN cd /src \
  