require 'formula' class Tarsnap < Formula url 'https://www.tarsnap.com/download/tarsnap-autoconf-1.0.29.tgz' homepage 'http://www.tarsnap.com/' sha256 '747510459e4af0ebbb6e267c159aa019f9337d1e07bd9a94f1aa1498081b7598' depends_on 'lzma' => :optional def install system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}" system "make install" end end