require 'formula' class Ginac < Formula url 'http://www.ginac.de/ginac-1.6.0.tar.bz2' homepage 'http://www.ginac.de/' md5 '6d1385b440c00705a368ad51d60a292d' depends_on 'cln' depends_on 'readline' def install system "./configure", "--prefix=#{prefix}", "--disable-dependency-tracking" system "make install" end end