wget -c http://downloads.sourceforge.net/project/smartmontools/smartmontools/6.6/smartmontools-6.6.tar.gz
tar -xzf smartmontools-6.6.tar.gz
cd smartmontools-6.6
mkdir -p build
cd build
../configure --prefix="/usr" --sysconfdir="/etc"
make # Doesn't mind -j#
make install