require 'formula' class Cln < Formula url 'http://www.ginac.de/CLN/cln-1.3.2.tar.bz2' homepage 'http://www.ginac.de/CLN/' sha1 'c30dca80e75f45e2107f233075e6d0339ea884b0' depends_on "gmp" def install system "./configure", "--prefix=#{prefix}", "--disable-dependency-tracking", "--with-gmp=#{HOMEBREW_PREFIX}" system "make install" end end