
  $ dune build
  Warning: Dune's Coq Build Language is deprecated, and will be removed in Dune
  3.24. Please upgrade to the new Rocq Build Language.
  Hint: To disable this warning, add the following to your dune-project file:
  (warnings (deprecated_coq_lang disabled))
  lib: [
    "_build/install/default/lib/cvendor/META"
    "_build/install/default/lib/cvendor/dune-package"
    "_build/install/default/lib/cvendor/opam"
  ]
  lib_root: [
    "_build/install/default/lib/coq/user-contrib/b/b.glob" {"coq/user-contrib/b/b.glob"}
    "_build/install/default/lib/coq/user-contrib/b/b.v" {"coq/user-contrib/b/b.v"}
    "_build/install/default/lib/coq/user-contrib/b/b.vo" {"coq/user-contrib/b/b.vo"}
  ]
