godot.nix

{ stdenv, scons, pkgconfig, xlibs, alsaLib, fetchzip, xorg, x11
, libpulseaudio, freetype, mesa, mesa_glu, openssl, fetchgit
, udev}:

let
  pname = "godot";
  version = "2.0.3-stable-with-gdnet";
in

stdenv.mkDerivation rec {
  name = "${pname}-${version}";
  src = fetchzip {
    url = "https://github.com/godotengine/godot/archive/2.0.3-stable.zip";
    sha256 = "0363sqbqmdfa1krfjbg3fwjfh5fxb46bk9g69s1p4cdzmpry4xma";
  };

  gdNet = fetchgit {
    url = "git://github.com/jrimclean/gdnet";
    rev = "3caf107935c5d2e5b15bf220f7c12f5952be7a6e";
    sha256 = "0j5vkv88w4i4fi5576i0n0y8xi5qvrmlp762dnspdikppnqwjv6r";
  };

  COMPILE_THREADS = 9;

  buildInputs = [
    scons pkgconfig xlibs.libX11 xlibs.libXcursor alsaLib.dev libpulseaudio x11
    freetype mesa mesa_glu openssl xlibs.xineramaproto udev
    xorg.libXinerama
  ];

  meta = {
    homepage = "http://godotengine.org";
    description = "Free and Open Source 2D and 3D game engine";
    license = stdenv.lib.licenses.mit;
  };

  configurePhase =
    "cp -r $gdNet $src/modules/gdnet";

  patches = [ ./scons_hack.patch ];

  buildPhase =
     "scons platform=x11 prefix=$out -j $COMPILE_THREADS";

  installPhase =
     "mkdir $out/bin
      cp $src/bin $out/bin";
}

scons_hack.patch

diff -ru godot-orig/platform/x11/detect.py godot/platform/x11/detect.py
--- godot-orig/platform/x11/detect.py	2016-06-28 11:45:49.549889379 +1000
+++ godot/platform/x11/detect.py	2016-06-28 11:46:07.800059405 +1000
@@ -153,6 +153,7 @@
 		print("Enabling ALSA")
 		env.Append(CPPFLAGS=["-DALSA_ENABLED"])
 		env.Append(LIBS=['asound'])
+		env.ParseConfig('pkg-config --cflags --libs alsa')
 	else:
 		print("ALSA libraries not found, disabling driver")
 
@@ -179,6 +180,9 @@
 
 	env.Append(CPPFLAGS=['-DX11_ENABLED','-DUNIX_ENABLED','-DGLES2_ENABLED','-DGLES_OVER_GL'])
 	env.Append(LIBS=['GL', 'GLU', 'pthread', 'z'])
+	env.ParseConfig('pkg-config --cflags --libs glu')
+	env.ParseConfig('pkg-config --cflags --libs zlib')
+
 	#env.Append(CPPFLAGS=['-DMPC_FIXED_POINT'])
 
 #host compiler is default..