heptagon/compiler/myocamlbuild_config.ml

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open Ocamlbuild_plugin
(* these functions are not really officially exported *)
let run_and_read = Ocamlbuild_pack.My_unix.run_and_read
let blank_sep_strings = Ocamlbuild_pack.Lexers.blank_sep_strings
let split s ch =
let x = ref [] in
let rec go s =
let pos = String.index s ch in
x := (String.before s pos)::!x;
go (String.after s (pos + 1))
in
try
go s
with Not_found -> !x
let split_nl s = split s '\n'
let before_space s =
try
String.before s (String.index s ' ')
with Not_found -> s
(* this lists all supported packages *)
let find_packages () =
List.map before_space (split_nl & run_and_read "ocamlfind list")
(* this is supposed to list available syntaxes, but I don't know how to do it. *)
let find_syntaxes () = ["camlp4o"; "camlp4r"]
(* ocamlfind command *)
let ocamlfind x = S[A"ocamlfind"; x]
let ocamlfind_before_options () =
(* by using Before_options one let command line options have an higher priority *)
(* on the contrary using After_options will guarantee to have the higher priority *)
(* override default commands by ocamlfind ones *)
Options.ocamlc := ocamlfind & A"ocamlc";
Options.ocamlopt := ocamlfind & A"ocamlopt";
Options.ocamldep := ocamlfind & A"ocamldep";
Options.ocamldoc := ocamlfind & A"ocamldoc";
Options.ocamlmktop := ocamlfind & A"ocamlmktop"
let ocamlfind_after_rules () =
(* When one link an OCaml library/binary/package, one should use -linkpkg *)
flag ["ocaml"; "link"; "program"] & A"-linkpkg";
(* For each ocamlfind package one inject the -package option when
* compiling, computing dependencies, generating documentation and
* linking. *)
List.iter begin fun pkg ->
flag ["ocaml"; "compile"; "pkg_"^pkg] & S[A"-package"; A pkg];
flag ["ocaml"; "ocamldep"; "pkg_"^pkg] & S[A"-package"; A pkg];
flag ["ocaml"; "doc"; "pkg_"^pkg] & S[A"-package"; A pkg];
flag ["ocaml"; "link"; "pkg_"^pkg] & S[A"-package"; A pkg];
flag ["ocaml"; "infer_interface"; "pkg_"^pkg] & S[A"-package"; A pkg];
end (find_packages ());
(* Like -package but for extensions syntax. Morover -syntax is useless
* when linking. *)
List.iter begin fun syntax ->
flag ["ocaml"; "compile"; "syntax_"^syntax] & S[A"-syntax"; A syntax];
flag ["ocaml"; "ocamldep"; "syntax_"^syntax] & S[A"-syntax"; A syntax];
flag ["ocaml"; "doc"; "syntax_"^syntax] & S[A"-syntax"; A syntax];
flag ["ocaml"; "infer_interface"; "syntax_"^syntax] & S[A"-syntax"; A syntax];
end (find_syntaxes ());
(* The default "thread" tag is not compatible with ocamlfind.
Indeed, the default rules add the "threads.cma" or "threads.cmxa"
options when using this tag. When using the "-linkpkg" option with
ocamlfind, this module will then be added twice on the command line.
To solve this, one approach is to add the "-thread" option when using
the "threads" package using the previous plugin.
*)
flag ["ocaml"; "pkg_threads"; "compile"] (S[A "-thread"]);
flag ["ocaml"; "pkg_threads"; "link"] (S[A "-thread"]);
flag ["ocaml"; "pkg_threads"; "infer_interface"] (S[A "-thread"])