/usr/lib/ocaml/xenctrl/META is in libxen-ocaml 4.4.2-0ubuntu0.14.04.14.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | version = "4.1"
description = "Xen Control Interface"
requires = "unix,xenmmap"
archive(byte) = "xenctrl.cma"
archive(native) = "xenctrl.cmxa"
|