require 'formula' class GnuProlog < Formula url 'http://gprolog.univ-paris1.fr/unstable/gprolog-20100713.tgz' homepage 'http://www.gprolog.org/' md5 '0f882e352b886a5ddb59bcab457fa78e' skip_clean :all def install ENV.j1 # make won't run in parallel Dir.chdir 'src' do system "./configure", "--prefix=#{prefix}", "--disable-debug", "--disable-dependency-tracking" system "make" system "make install-strip" end end end