/usr/lib/ocaml/getopt/META is in libgetopt-ocaml-dev 0.0.20040811-10+b4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | requires = ""
version = "20040420"
archive(byte) = "getopt.cma"
archive(native) = "getopt.cmxa"
|