require 'formula' class AutoconfArchive < Formula url 'http://ftpmirror.gnu.org/autoconf-archive/autoconf-archive-2011.01.02.tar.bz2' homepage 'http://savannah.gnu.org/projects/autoconf-archive/' md5 '2c6875364757ac301d0e8429791f0c4c' def install system './configure', "--prefix=#{prefix}" system 'make install' end end