wget -c http://ftp.gnu.org/gnu/screen/screen-4.3.0.tar.gz
tar -xzf screen-4.3.0.tar.gz
cd screen-4.3.0
mkdir -p build
cd build
../configure --prefix="/usr" --sysconfdir="/etc"
echo 'ETCSCREENRC=/etc/screenrc' >> Makefile
make # Doesn't mind -j#
make install