require 'formula' class Scheme48 < Formula homepage 'http://www.s48.org/' url 'http://s48.org/1.9/scheme48-1.9.tgz' sha1 '8fd78d328a8c39ecd848e849ade094c30c2bb4ba' def install ENV.deparallelize system "./configure", "--disable-debug", "--disable-dependency-tracking", "--prefix=#{prefix}", "--enable-gc=bibop" system "make" system "make install" end end