require 'formula' class Exiv2 < Formula homepage 'http://www.exiv2.org' url 'http://www.exiv2.org/exiv2-0.23.tar.gz' sha1 '5f342bf642477526f41add11d6ee7787cdcd639f' def install system "./configure", "--prefix=#{prefix}", "--disable-dependency-tracking" system "make install" end end