require 'formula' class Tarsnap < Formula url 'https://www.tarsnap.com/download/tarsnap-autoconf-1.0.30.tgz' homepage 'http://www.tarsnap.com/' sha256 'ad663922064a98bce9c085a53ecd83eb839457b49d7cd22cff7c069e9b7e522e' depends_on 'xz' => :optional fails_with_llvm "Compilation hangs." def install system "./configure", "--disable-dependency-tracking", "--enable-sse2", "--prefix=#{prefix}", "--sysconfdir=#{etc}" system "make install" end end