require 'formula' class Pari < Formula url 'http://pari.math.u-bordeaux.fr/pub/pari/unix/pari-2.3.5.tar.gz' homepage 'http://pari.math.u-bordeaux.fr/' md5 '6077c6db56fdd32e39a06a9bf320e1f7' def install system "./Configure", "--prefix=#{prefix}" system "make install" end end