/usr/x86_64-w64-mingw32/lib/ocaml/caml/ is in ocaml-mingw-w64-x86-64 4.00.1~20130426-3ubuntu2.
This file is owned by root:root, with mode 0o755.
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/usr/x86_64-w64-mingw32/lib/ocaml/caml/alloc.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/bigarray.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/callback.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/compatibility.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/config.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/custom.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/fail.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/hash.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/intext.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/memory.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/misc.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/mlvalues.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/printexc.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/signals.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/socketaddr.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/threads.h
/usr/x86_64-w64-mingw32/lib/ocaml/caml/unixsupport.h
/usr/x86_64-w64-mingw32/lib/ocaml/camlp4/META