require 'formula'

class Zeromq < Formula
  homepage 'http://www.zeromq.org/'
  url 'http://download.zeromq.org/zeromq-3.2.2.tar.gz'
  sha1 '0e8734c773b6a757b474c16fc3c517993ba47283'

  head 'https://github.com/zeromq/libzmq.git'

  depends_on 'pkg-config' => :build
  depends_on 'libpgm' if build.include? 'with-pgm'

  if build.head?
    depends_on :automake
    depends_on :libtool
  end

  fails_with :llvm do
    build 2326
    cause "Segfault while linking"
  end

  option :universal
  option 'with-pgm', 'Build with PGM extension'

  def install
    ENV.universal_binary if build.universal?

    args = ["--disable-dependency-tracking", "--prefix=#{prefix}"]
    if build.include? 'with-pgm'
      # Use HB libpgm-5.2 because their internal 5.1 is b0rked.
      ENV['OpenPGM_CFLAGS'] = %x[pkg-config --cflags openpgm-5.2].chomp
      ENV['OpenPGM_LIBS'] = %x[pkg-config --libs openpgm-5.2].chomp
      args << "--with-system-pgm"
    end

    system "./autogen.sh" if build.head?
    system "./configure", *args
    system "make"
    system "make install"
  end

  def caveats; <<-EOS.undent
    To install the zmq gem on 10.6 with the system Ruby on a 64-bit machine,
    you may need to do:

        ARCHFLAGS="-arch x86_64" gem install zmq -- --with-zmq-dir=#{HOMEBREW_PREFIX}

    If you want to build the Java bindings from https://github.com/zeromq/jzmq
    you will need the Java Developer Package from http://connect.apple.com/
    EOS
  end
end