> Perhaps I am just blind, but I was unable to figure out after poking
>  around for a while, how to tell ocamlbuild that it should pass the
>  -keep-code flag to ocamldoc. I suspect I need to put something in _tags,
>  but what? (I am an ocamlbuild newbie.)

I don't know if this is the best way, but I use the myocamlbuild
module to pass arguments to ocamlfind and ocamldoc, it just works.

An example:

=============== myocamlbuild.ml ===============
open Ocamlbuild_plugin;;
open Command;;

let (|>) x f = f x

let packages =
  [
    "cryptokit";
    "extlib";
    "netcgi2";
    "netcgi2-plex";
    "nethttpd";
    "netplex";
    "netstring";
    "oUnit";
    "pxp-engine";
    "pxp-lex-iso88591";
    "str";
    "unix"
  ] |> String.concat ",";;

let ocamlfind cmd = S[A"ocamlfind"; A cmd; A"-package"; A packages];;

flag ["ocaml"; "link"] (A"-linkpkg");;

let ocamldoc =
  S[A"ocamlfind";
    A"ocamldoc";
    A"-package";
    A packages;
    A"-stars";
    A"-colorize-code";
    A"-intro"; A"../documentation/doc_index.txt";
    A"-css-style"; A"../documentation/style.css";
    A"-t"; A"The Ex-nunc System";
  ];;

dispatch begin function
  | After_options ->
      Options.ocamldoc := ocamldoc;
      Options.ocamlc := ocamlfind "ocamlc";
      Options.ocamlopt := ocamlfind "ocamlopt";
  | _ -> ()
end
=========== END OF myocamlbuild.ml ============



-- 
Paolo Donadeo
Studio Associato 4Sigma
Website:  http://www.4sigma.it
Email:    p.donadeo@4sigma.it
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:wq