diff -r 000000000000 -r 6474c204b198 b2g/app.mozbuild
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/b2g/app.mozbuild	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+if not CONFIG['LIBXUL_SDK']:
+    app_libxul_dirs = []
+    app_libxul_static_dirs = []
+
+    include('/toolkit/toolkit.mozbuild')
+elif CONFIG['ENABLE_TESTS']:
+    add_tier_dir('testharness', 'testing/mochitest')
+
+if CONFIG['MOZ_EXTENSIONS']:
+    add_tier_dir('app', 'extensions')
+
+add_tier_dir('app', CONFIG['MOZ_BRANDING_DIRECTORY'])
+add_tier_dir('app', 'b2g')