require 'formula' class Mathomatic < Formula homepage 'http://www.mathomatic.org/math/' url 'http://mathomatic.org/mathomatic-16.0.2.tar.bz2' sha1 'd480c0a9893186151bf22cef166e20a94fcf1335' def install ENV['prefix'] = prefix system "make READLINE=1" system "make m4install" cd 'primes' do system 'make' system 'make install' end end end