[mutter/wayland] wayland: Don't use WESTON_LAUNCHER_SOCK

[Jasper St. Pierre <jstpierre src gnome org>]

commit ef24fb6296132eee156e69df8e244dd08e008e8c
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Feb 17 21:23:27 2014 -0500

    wayland: Don't use WESTON_LAUNCHER_SOCK
    
    We can simply check the windowing backend.

 src/wayland/meta-wayland.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/wayland/meta-wayland.c b/src/wayland/meta-wayland.c
index 6b6c1fe..3a32dee 100644
--- a/src/wayland/meta-wayland.c
+++ b/src/wayland/meta-wayland.c
@@ -643,8 +643,10 @@ meta_wayland_init (void)
 
   clutter_wayland_set_compositor_display (compositor->wayland_display);
 
-  if (getenv ("WESTON_LAUNCHER_SOCK"))
+#if defined(CLUTTER_WINDOWING_EGL)
+  if (clutter_check_windowing_backend (CLUTTER_WINDOWING_EGL))
     compositor->launcher = meta_launcher_new ();
+#endif
 
   if (clutter_init (NULL, NULL) != CLUTTER_INIT_SUCCESS)
     g_error ("Failed to initialize Clutter");