require 'formula' class Nasm < Formula homepage 'http://www.nasm.us/' url 'http://www.nasm.us/pub/nasm/releasebuilds/2.10.05/nasm-2.10.05.tar.bz2' sha256 'de5af263ce344d3a89711c61802e3ad8a4e14a61d539f521f7554cdbbe04ed0f' option :universal def install ENV.universal_binary if build.universal? system "./configure", "--prefix=#{prefix}" system "make everything" system "make install_everything" end end