require 'formula' class Pstree < Formula homepage 'http://freshmeat.net/projects/pstree/' url 'ftp://ftp.thp.uni-duisburg.de/pub/source/pstree-2.36.tar.gz' sha1 '1ca2e08c62d33afd37d78a215095258e77654b3f' def install system "make pstree" bin.install "pstree" end end