new homebrew script for wesnoth, should work for os x and linux

wesnoth-new.rb

require 'formula'

class WesnothNew < Formula
  homepage 'http://www.wesnoth.org/'
  url 'https://downloads.sourceforge.net/project/wesnoth/wesnoth-1.10/wesnoth-1.10.7/wesnoth-1.10.7.tar.bz2'
  sha1 '86e329585244c377a1863f64dd534bc7bbcc7acf'
  head 'https://github.com/wesnoth/wesnoth.git'

  devel do
    url 'https://downloads.sourceforge.net/project/wesnoth/wesnoth/wesnoth-1.11.19/wesnoth-1.11.19.tar.bz2'
    sha1 '1f98b1043525d4721e39f51add9af0abf08d2904'
  end

  option "with-debug", "build with debugging symbols"
  option "build-os-x-bundle", "build an OS X bundle and place it in home directory"

  depends_on 'scons' => :build
  depends_on 'gettext' #This is only needed to generate translation catalogues at compile time (MSGFMT), and for wesnoth 1.10. In 1.12+ we use boost locale for actual runtime translations, as libintl does not support unicode in filepaths when used with mingw32 compiler
  depends_on 'fribidi'
  depends_on 'boost'
  depends_on 'libpng' #This gets linked to wesnoth binary, when saving screenshots as png
  depends_on 'fontconfig'
  depends_on 'cairo'
  depends_on 'pango'

  if OS.linux?
    # On linux, x11 driver is needed or the clipboard code doesn't work, images don't load
    depends_on 'sdl' => 'with-x11-driver'
  else
    depends_on 'sdl'
  end

  # The images are pngs. Must depend on libpng before this line, because sdl_image must have support for png. On linux, it must link with brew libpng and not system libpng
  depends_on 'sdl_image'

  # The music is in .ogg format
  # We must link libvorbis and sdl_mixer with wesnoth binary
  depends_on 'libvorbis'
  depends_on 'sdl_mixer' => 'with-libvorbis'

  depends_on 'sdl_net'
  depends_on 'sdl_ttf'

  depends_on 'ccache' => :optional
  option "with-ccache", "speeds recompilation, convenient for beta testers"

  def install

    gettext = Formula["gettext"].opt_prefix

    args = %W[prefix=#{prefix}  docdir=#{doc}  mandir=#{man}  fifodir=#{var}/run/wesnothd]
    args << "gettextdir=#{gettext}" unless OS.linux? #use system-installed gettext on linux, the gettext package seems broken on linux and doesn't provide libintl.h
    args << "install"
    args << "wesnoth"
    args << "wesnothd"
    args << "-j#{ENV.make_jobs}"
    args << "ccache=true" if build.with? "ccache"
    args << "build=debug" if build.with? "debug"

    scons *args

    if build.include? "build-os-x-bundle"
      scons "wesnoth-bundle"
      etc.install "Battle For Wesnoth.app"
    end
  end

end