clutter: fix build on darwin

pkgs/development/libraries/clutter/default.nix

@@ -1,6 +1,26 @@
-{ lib, stdenv, fetchurl, pkg-config, libGLU, libGL, libX11, libXext, libXfixes
-, libXdamage, libXcomposite, libXi, libxcb, cogl, pango, atk, json-glib
-, gobject-introspection, gtk3, gnome, libinput, libgudev, libxkbcommon
+{ lib
+, stdenv
+, fetchurl
+, pkg-config
+, libGLU
+, libGL
+, libX11
+, libXext
+, libXfixes
+, libXdamage
+, libXcomposite
+, libXi
+, libxcb
+, cogl
+, pango
+, atk
+, json-glib
+, gobject-introspection
+, gtk3
+, gnome
+, libinput
+, libgudev
+, libxkbcommon
 }:
 
 let
@@ -19,12 +39,34 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ gtk3 ];
   nativeBuildInputs = [ pkg-config gobject-introspection ];
-  propagatedBuildInputs =
-    [ libX11 libGL libGLU libXext libXfixes libXdamage libXcomposite libXi cogl pango
-      atk json-glib gobject-introspection libxcb libinput libgudev libxkbcommon
-    ];
+  propagatedBuildInputs = [
+    cogl
+    pango
+    atk
+    json-glib
+    gobject-introspection
+  ] ++ lib.optionals (!stdenv.isDarwin) [
+    libX11
+    libGL
+    libGLU
+    libXext
+    libXfixes
+    libXdamage
+    libXcomposite
+    libXi
+    libxcb
+    libinput
+    libgudev
+    libxkbcommon
+  ];
 
-  configureFlags = [ "--enable-introspection" ]; # needed by muffin AFAIK
+  configureFlags = [
+    "--enable-introspection" # needed by muffin AFAIK
+  ] ++ lib.optionals stdenv.isDarwin [
+    "--without-x"
+    "--enable-x11-backend=no"
+    "--enable-quartz-backend=yes"
+  ];
 
   #doCheck = true; # no tests possible without a display
 
@@ -57,6 +99,6 @@ stdenv.mkDerivation rec {
     homepage = "http://www.clutter-project.org/";
 
     maintainers = with lib.maintainers; [ ];
-    platforms = lib.platforms.mesaPlatforms;
+    platforms = lib.platforms.unix;
   };
 }