require 'formula' class Pstree < Formula url 'ftp://ftp.thp.uni-duisburg.de/pub/source/pstree-2.32.tar.gz' homepage 'http://freshmeat.net/projects/pstree/' md5 'ba6e274e06d63910cf9bb8664b932808' def install system "make pstree" bin.install "pstree" end end