Something

mkdir foo
cd foo
wget -c http://libtorrent.rakshasa.no/downloads/libtorrent-0.11.0.tar.gz
wget -c http://libtorrent.rakshasa.no/downloads/rtorrent-0.7.0.tar.gz
tar xzvf libtorrent-0.11.0.tar.gz
cd libtorrent-0.11.0
sudo su -c './configure && make && make install'
cd ..
tar xzvf rtorrent-0.7.0.tar.gz
cd rtorrent-0.7.0
sudo su -c './configure && make && make install'
cd ..
cd ..
rm -rf foo