require 'formula' class ClustalW < Formula url 'http://www.clustal.org/download/2.0.12/clustalw-2.0.12.tar.gz' homepage 'http://www.clustal.org/' md5 '8d0c50ffbe5898b03509aa0a7709f642' def install system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}" system "make install" end end