Head-only GPAC formula for Homebrew

gpac.rb

require 'formula'

# Borrowed from https://github.com/Homebrew/homebrew/blob/master/Library/Formula/gpac.rb
# License : https://github.com/Homebrew/homebrew/blob/master/LICENSE.txt

# Installs a relatively minimalist version of the GPAC tools. The
# most commonly used tool in this package is the MP4Box metadata
# interleaver, which has relatively few dependencies.
#
# The challenge with building everything is that Gpac depends on
# a much older version of FFMpeg and WxWidgets than the version
# that Brew installs

class Gpac < Formula
  homepage 'http://gpac.wp.mines-telecom.fr/'

  head 'https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac'

  depends_on :x11 => :recommended

  depends_on 'pkg-config' => :build
  depends_on 'a52dec' => :optional
  depends_on 'jpeg' => :optional
  depends_on 'faad2' => :optional
  depends_on 'libogg' => :optional
  depends_on 'libvorbis' => :optional
  depends_on 'mad' => :optional
  depends_on 'sdl' => :optional
  depends_on 'theora' => :optional
  depends_on 'ffmpeg' => :optional
  depends_on 'openjpeg' => :optional

  def install
    ENV.deparallelize

    args = ["--disable-wx",
            "--prefix=#{prefix}",
            "--mandir=#{man}"]

    if build.with? 'x11'
      # gpac build system is barely functional
      args << "--extra-cflags=-I#{MacOS::X11.include}"
      # Force detection of X libs on 64-bit kernel
      args << "--extra-ldflags=-L#{MacOS::X11.lib}"
    end

    chmod 0700, "configure"
    system "./configure", *args
    system "make"
    system "make install"
  end
end