require 'formula' class Aterm < Formula homepage 'http://strategoxt.org/Tools/ATermFormat' url 'ftp://ftp.stratego-language.org/pub/stratego/StrategoXT/strategoxt-0.17/aterm-2.5.tar.gz' md5 '33ddcb1a229baf406ad1f603eb1d5995' def install system "./configure", "--prefix=#{prefix}" ENV.j1 # Parallel builds don't work system "make install" end end