anchor.diff:  
   
   
  +RUN  curl -LO http://www.harding.motd.ca/autossh/autossh-1.4e.tgz &&\
  +      tar xf autossh-1.4e.tgz &&\
  +      cd autossh-1.4e &&\
  +      ./configure --prefix=/opt/apps/green &&\
  +      make && make install
  +
  +
  +
   # ====================================== remove what we don't need  ==============================
   
   RUN mkdir -p /opt/apps/green/bin ;\
  
positive.code: ENV OPENVPN_VER=2.4.1
  RUN curl -L -o openvpn-${OPENVPN_VER}.tar.gz https://github.com/OpenVPN/openvpn/archive/v${OPENVPN_VER}.tar.gz  &&\
      tar -xf openvpn-${OPENVPN_VER}.tar.gz &&\
      cd openvpn-${OPENVPN_VER} && libtoolize --force && aclocal && autoheader && automake --force-missing --add-missing &&\
      autoconf &&\
      ls /opt/apps/green/include/lzo &&\
      ./configure --prefix=/opt/apps/green CFLAGS="-I/opt/apps/green/include" LDFLAGS="-L/opt/apps/green/lib" OPENSSL_LIBS="-L/opt/apps/green/lib -lssl -lcrypto" OPENSSL_CFLAGS="-I/opt/apps/green/include" --disable-debug --disable-dependency-tracking --disable-silent-rules --with-crypto-library=openssl &&\
  
negative.code: 
  RUN git clone https://github.com/fukuchi/libqrencode.git &&\
      cd libqrencode &&\
      libtoolize --force && aclocal && autoheader && automake --force-missing --add-missing &&\
      autoconf &&\
      ./configure CFLAGS="-I/opt/apps/green/include" LDFLAGS="-L/opt/apps/green/lib" --prefix=/opt/apps/green &&\
      make &&\
      make install
  
  
  RUN git clone https://github.com/google/google-authenticator-libpam.git &&\
  