wget -N ftp://ftp.gnu.org/gnu/readline/readline-5.2.tar.gz
tar xvzf readline-5.2.tar.gz
(cd readline-5.2 &&
wget -N -r -l2 --no-parent ftp://ftp.gnu.org/gnu/readline/readline-5.2-patches
for p in ftp.gnu.org/gnu/readline/readline-5.2-patches/*; do
case "$p" in
*.sig) continue;;
esac
patch -p0 < "$p"
done
)