require 'formula' class Ginac < Formula homepage 'http://www.ginac.de/' url 'http://www.ginac.de/ginac-1.6.2.tar.bz2' sha1 'c93913c4c543874b2ade4f0390030641be7e0c41' depends_on 'cln' depends_on 'readline' def install system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}" system "make install" end end