anchor.diff:  RUN        
   
   # install xmlrpc
  -WORKDIR    rtorrent
  +WORKDIR    /rtorrent
   RUN        svn checkout http://svn.code.sf.net/p/xmlrpc-c/code/stable xmlrpc-c
  -WORKDIR    rtorrent/xmlrpc-c
  +WORKDIR    xmlrpc-c
   RUN        ./configure --disable-cplusplus
   RUN        make
   RUN        make install
  
positive.code: RUN        mkdir rtorrent
  
  # install libtorrent
  WORKDIR    rtorrent
  RUN        wget http://libtorrent.rakshasa.no/downloads/libtorrent-0.13.4.tar.gz
  RUN        tar -xzf libtorrent-0.13.4.tar.gz
  RUN        rm libtorrent-0.13.4.tar.gz
  WORKDIR    rtorrent/libtorrent-0.13.4
  RUN        ./configure
  RUN        make
  RUN        make install
  
negative.code: RUN        
  
  # install rtorrent
  WORKDIR    /rtorrent
  RUN        wget http://libtorrent.rakshasa.no/downloads/rtorrent-0.9.4.tar.gz
  RUN        tar -xzf rtorrent-0.9.4.tar.gz
  RUN        rm rtorrent-0.9.4.tar.gz
  WORKDIR    rtorrent-0.9.4
  RUN        ./configure --with-xmlrpc-c
  RUN        make
  RUN        make install
  