diff -r 000000000000 -r 6474c204b198 build/macosx/permissions/chown_root.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/macosx/permissions/chown_root.c	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+/* 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/. */
+
+#include <unistd.h>
+
+int main(int argc, char **argv)
+{
+  if (argc != 2)
+    return 1;
+
+  return execl("/usr/sbin/chown",
+               "/usr/sbin/chown", "-R", "-h", "root:admin", argv[1], (char*) 0);
+}