diff -r 000000000000 -r 6474c204b198 toolkit/mozapps/installer/unpack.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/mozapps/installer/unpack.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+# 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/.
+
+import sys
+import os
+from mozpack.packager.unpack import unpack
+import buildconfig
+
+
+def main():
+    if len(sys.argv) != 2:
+        print >>sys.stderr, "Usage: %s directory" % \
+                            os.path.basename(sys.argv[0])
+        sys.exit(1)
+
+    buildconfig.substs['USE_ELF_HACK'] = False
+    buildconfig.substs['PKG_SKIP_STRIP'] = True
+    unpack(sys.argv[1])
+
+if __name__ == "__main__":
+    main()