diff --git a/dune-project b/dune-project
index 92a88bc1..4e43eeb2 100644
--- a/dune-project
+++ b/dune-project
@@ -41,8 +41,12 @@
   cmdliner
   fpath
   bos
+  js_of_ocaml-compiler
+  js_of_ocaml-toplevel
   (opam-format
-   (>= 2.0.0))))
+   (>= 2.0.0))
+  (yojson
+   (>= 1.6.0))))
 
 (package
  (name voodoo-do)
diff --git a/src/voodoo-do/do.ml b/src/voodoo-do/do.ml
index d1e630f1..fa9baf28 100644
--- a/src/voodoo-do/do.ml
+++ b/src/voodoo-do/do.ml
@@ -188,6 +188,10 @@ let run pkg_name is_blessed failed =
 
   let package_mlds, otherdocs = Package_mlds.find package in
 
+  let toplevel_files = Js_toplevel.find package in
+  Format.eprintf "Found %d toplevel files\n%!" (List.length toplevel_files);
+  Js_toplevel.copy toplevel_files output_path;
+
   let error_log = Error_log.find package in
 
   let parent =
@@ -267,4 +271,6 @@ let run pkg_name is_blessed failed =
   in
   if failed then
     Bos.OS.File.write Fpath.(output_path / "failed") "failed" |> Result.get_ok;
+  Bos.OS.File.write Fpath.(output_path / "universe.txt") universe
+  |> Result.get_ok;
   ()
diff --git a/src/voodoo-gen/main.ml b/src/voodoo-gen/main.ml
index 97fc83ba..e5ab09a7 100644
--- a/src/voodoo-gen/main.ml
+++ b/src/voodoo-gen/main.ml
@@ -133,11 +133,18 @@ let generate_pkgver output_dir name_filter version_filter =
                   | _ -> { acc with others = path :: acc.others })
                 init otherdocs
             in
-            let status = { Voodoo_serialize.Status.failed; otherdocs } in
-            if Option.is_none universe then
-              Yojson.Safe.to_file
-                Fpath.(output_prefix / "status.json" |> to_string)
-                (Voodoo_serialize.Status.to_yojson status);
+
+            (if Option.is_none universe then
+               let universe =
+                 Bos.OS.File.read Fpath.(pkg_path / "universe.txt")
+                 |> Result.get_ok
+               in
+               let status =
+                 { Voodoo_serialize.Status.failed; universe; otherdocs }
+               in
+               Yojson.Safe.to_file
+                 Fpath.(output_prefix / "status.json" |> to_string)
+                 (Voodoo_serialize.Status.to_yojson status));
 
             match
               Search_index.generate_index
diff --git a/src/voodoo-prep/dune b/src/voodoo-prep/dune
index c55d26f5..192195f2 100644
--- a/src/voodoo-prep/dune
+++ b/src/voodoo-prep/dune
@@ -2,4 +2,4 @@
  (name main)
  (public_name voodoo-prep)
  (package voodoo-prep)
- (libraries cmdliner fpath bos opam-format))
+ (libraries cmdliner fpath bos.setup opam-format yojson))
diff --git a/src/voodoo-prep/jsoo.ml b/src/voodoo-prep/jsoo.ml
new file mode 100644
index 00000000..75ab5a7a
--- /dev/null
+++ b/src/voodoo-prep/jsoo.ml
@@ -0,0 +1,127 @@
+module Result = Bos_setup.R
+open Result.Infix
+module StringSet = Jsoo_cmi.StringSet
+
+let run path package =
+  Bos.OS.Dir.fold_contents
+    (fun fpath (acc, universes) ->
+      let rel_fpath =
+        match Fpath.relativize ~root:path fpath with
+        | Some x -> x
+        | None -> failwith "Bos error"
+      in
+      let segs = Fpath.segs rel_fpath in
+      let universes =
+        match segs with
+        | "universes" :: universe_id :: _ -> StringSet.add universe_id universes
+        | _ -> universes
+      in
+      let path_relevant =
+        match (package, segs) with
+        | Some s, "universes" :: _universe_id :: package' :: _ -> package' = s
+        | Some _, _ -> false
+        | None, _ -> true
+      in
+      if
+        path_relevant
+        && List.mem (Fpath.get_ext fpath)
+             [ Jsoo_cma.ext; Jsoo_toplevel.meta_ext ]
+      then (fpath :: acc, universes)
+      else (acc, universes))
+    ([], StringSet.empty) path
+  >>= fun (files, universes) ->
+  let toplevels =
+    List.fold_left
+      (fun acc x ->
+        acc >>= fun acc ->
+        if Fpath.has_ext Jsoo_cma.ext x then
+          Jsoo_cma.process x >>| fun () -> acc
+        else Jsoo_toplevel.process x >>| fun t -> t :: acc)
+      (Ok []) files
+  in
+  toplevels >>= fun toplevels ->
+  let cmis =
+    List.concat
+      (List.map (fun toplevel -> toplevel.Jsoo_toplevel.cmis) toplevels)
+    |> List.sort_uniq Jsoo_cmi.compare
+  in
+  Jsoo_cmi.copy universes cmis;
+  toplevels
+  |> List.map (fun t -> t.Jsoo_toplevel.package)
+  |> List.sort_uniq Package.compare
+  |> Util.R.iter_list ~f:(fun package ->
+         toplevels
+         |> List.filter (fun t -> t.Jsoo_toplevel.package = package)
+         |> List.map Jsoo_toplevel.to_yojson
+         |> Util.R.combine_list
+         >>| fun toplevels ->
+         Yojson.Safe.to_file
+           Fpath.(Package.jsoo_path package / "toplevels.json" |> to_string)
+           (`List toplevels))
+
+let copy_files root pkg_contents =
+  let findlib_cmas = Jsoo_cma.findlib () in
+  let pkgs = List.map (fun (x, _, _) -> x) pkg_contents in
+  Jsoo_cmi.stdlib pkgs >>= fun stdlib_cmis ->
+  Util.R.iter_list pkg_contents ~f:(fun (package, cmas, _) ->
+      let findlib_pkgs =
+        List.filter_map
+          (fun p ->
+            match List.assoc_opt Fpath.(root // p) findlib_cmas with
+            | Some pkg -> Some (p, pkg)
+            | None ->
+                Logs.info (fun m ->
+                    m "No findlib pkg for archive %a%!" Fpath.pp p);
+                None)
+          cmas
+      in
+      Util.R.iter_list findlib_pkgs ~f:(fun (cma_fpath, findlib_pkg) ->
+          let cma = Jsoo_cma.{ package; path = cma_fpath } in
+          Jsoo_cma.marshal cma;
+          let include_paths = Ocamlfind.include_paths findlib_pkg in
+          let cmis =
+            List.concat
+              (List.map
+                 (fun (package, _, contents) ->
+                   List.filter_map
+                     (fun path ->
+                       let dir, file = Fpath.split_base path in
+                       if
+                         Fpath.has_ext ".cmi" file
+                         && List.mem
+                              Fpath.(to_string (root // dir))
+                              include_paths
+                       then Some Jsoo_cmi.{ package; path }
+                       else None)
+                     contents)
+                 pkg_contents)
+          in
+          let cmis = cmis @ stdlib_cmis in
+          Ocamlfind.js_files findlib_pkg
+          |> Bos_setup.R.reword_error_msg (fun s ->
+                 Bos_setup.R.msgf "Bad js file for: %a (%s)\n%!" Package.pp
+                   package s)
+          >>| fun js_files ->
+          let dep_cmas =
+            List.filter_map
+              (fun path ->
+                match
+                  List.find_opt
+                    (fun (_, _, contents) ->
+                      List.exists (fun p -> Fpath.(root // p) = path) contents)
+                    pkg_contents
+                with
+                | Some (package, _, _) -> Some { Jsoo_cma.package; path }
+                | None ->
+                    Logs.info (fun m ->
+                        m "Failed to find package containing %a\n%!" Fpath.pp
+                          path);
+                    None)
+              (Ocamlfind.dep_cmas findlib_pkg)
+          in
+          let toplevel : Jsoo_toplevel.t =
+            { package; cma_fpath; js_files; dep_cmas; cmis; digest = None }
+          in
+          Jsoo_toplevel.build_toplevel toplevel;
+          Jsoo_toplevel.copy_js_files root toplevel;
+          Jsoo_toplevel.marshal toplevel))
diff --git a/src/voodoo-prep/jsoo.mli b/src/voodoo-prep/jsoo.mli
new file mode 100644
index 00000000..7b391149
--- /dev/null
+++ b/src/voodoo-prep/jsoo.mli
@@ -0,0 +1,8 @@
+val run : Fpath.t -> string option -> (unit, Bos_setup.R.msg) Bos_setup.result
+(** [run path file] copies [*.js] toplevel files, [*.cmi] and [*.cma] files.
+    Write the configurations in [toplevels.json]. *)
+
+val copy_files :
+  Fpath.t ->
+  (Package.t * Fpath.t list * Fpath.t list) list ->
+  (unit, Bos_setup.R.msg) Bos_setup.result
diff --git a/src/voodoo-prep/jsoo_cma.ml b/src/voodoo-prep/jsoo_cma.ml
new file mode 100644
index 00000000..31a24f09
--- /dev/null
+++ b/src/voodoo-prep/jsoo_cma.ml
@@ -0,0 +1,63 @@
+type t = { package : Package.t; path : Fpath.t }
+
+let name v = Fpath.basename v.path
+
+let func_name vv =
+  let n = name vv in
+  Astring.String.cuts ~sep:"." n
+  |> String.concat "_dot_"
+  |> Astring.String.cuts ~sep:"-"
+  |> String.concat "_dash_"
+
+let pp fmt v =
+  Format.fprintf fmt "{ path: %a; package: %a }" Fpath.pp v.path Package.pp
+    v.package
+
+let ext = ".jscma"
+let cma_path vv = Fpath.(Package.prep_path vv.package // vv.path)
+
+let meta_path vv =
+  Fpath.(Package.prep_path vv.package // add_ext ext (v (name vv)))
+
+let output_path vv =
+  Fpath.(Package.jsoo_path vv.package // add_ext ".js" (v (name vv)))
+
+let server_path vv = Fpath.(v "/toplevels" // output_path vv)
+
+let marshal v =
+  let path = meta_path v in
+  let oc = open_out_bin (Fpath.to_string path) in
+  Marshal.to_channel oc v [];
+  close_out oc
+
+let unmarshal path =
+  let ic = open_in_bin path in
+  let result = Marshal.from_channel ic in
+  close_in ic;
+  result
+
+let cmd vv =
+  Bos.Cmd.(
+    v "js_of_ocaml"
+    % p (cma_path vv)
+    % "--pretty" % "--wrap-with-fun" % func_name vv % "-o"
+    % p (output_path vv))
+
+let findlib () =
+  let findlib_pkgs = Ocamlfind.list () in
+  List.filter_map
+    (fun pkg ->
+      match Ocamlfind.cma_of_package pkg with
+      | Some cma -> Some (cma, pkg)
+      | None -> None)
+    findlib_pkgs
+
+let process cma_fpath =
+  Logs.info (fun m -> m "Processing %a%!" Fpath.pp cma_fpath);
+  let cma = unmarshal (Fpath.to_string cma_fpath) in
+  let cmd = cmd cma in
+  let dir = fst (Fpath.split_base (output_path cma)) in
+  Util.mkdir_p dir;
+  Logs.debug (fun m -> m "Cma: %a\n%!" Bos.Cmd.pp cmd);
+  Util.run_silent cmd;
+  Ok ()
diff --git a/src/voodoo-prep/jsoo_cma.mli b/src/voodoo-prep/jsoo_cma.mli
new file mode 100644
index 00000000..ffe56dc1
--- /dev/null
+++ b/src/voodoo-prep/jsoo_cma.mli
@@ -0,0 +1,22 @@
+type t = { package : Package.t; path : Fpath.t }
+
+val marshal : t -> unit
+(** Serialize. *)
+
+val pp : t Fmt.t
+val findlib : unit -> (Fpath.t * string) list
+
+val ext : string
+(** [.jscma] file extension. *)
+
+val server_path : t -> Fpath.t
+
+val func_name : t -> string
+(** [func_name t] changes the name of the name of the cma filename to a valid
+    function name.
+    - [.] are replaced with [_dot_]
+    - [-] are replaced with [_dash_]. *)
+
+val process : Fpath.t -> (unit, Bos_setup.R.msg) Bos_setup.result
+(** [process path] deserializes the cma file located at [path], then runs
+    [js_of_ocaml] on it. *)
diff --git a/src/voodoo-prep/jsoo_cmi.ml b/src/voodoo-prep/jsoo_cmi.ml
new file mode 100644
index 00000000..3e4c648a
--- /dev/null
+++ b/src/voodoo-prep/jsoo_cmi.ml
@@ -0,0 +1,62 @@
+module StringSet = Set.Make (String)
+
+type t = { package : Package.t; path : Fpath.t }
+
+let prep_path vv = Fpath.(Package.prep_path vv.package // vv.path)
+let output_path vv = Fpath.(Package.jsoo_path vv.package // vv.path)
+let server_path vv = Fpath.(v "/toplevels" // output_path vv)
+
+let pp fmt v =
+  Format.fprintf fmt "{ package: %a; path: %a }" Package.pp v.package Fpath.pp
+    v.path
+
+let compare v1 v2 =
+  let s1 = Format.asprintf "%a" pp v1 in
+  let s2 = Format.asprintf "%a" pp v2 in
+  String.compare s1 s2
+
+let copy universes cmis =
+  let cmis =
+    List.filter
+      (fun cmi -> StringSet.mem cmi.package.universe_id universes)
+      cmis
+  in
+  let l = List.map (fun cmi -> (prep_path cmi, output_path cmi)) cmis in
+  let dst_dirs =
+    List.map
+      (fun (_, f) ->
+        let dir, _ = Fpath.split_base f in
+        dir)
+      l
+    |> List.sort_uniq Fpath.compare
+  in
+  List.iter Util.mkdir_p dst_dirs;
+  List.iter
+    (fun (src, dst) -> if Fpath.has_ext ".cmi" src then Util.cp src dst)
+    l
+
+let stdlib pkgs =
+  let root = Fpath.v @@ Opam.prefix () in
+  let find_pkg s = List.find (fun { Package.name; _ } -> name = s) pkgs in
+  let stdlib_pkg = find_pkg "ocaml-base-compiler" in
+  let num_pkg = find_pkg "num" in
+  let num_cmis =
+    [ "arith_status.cmi"; "big_int.cmi"; "nat.cmi"; "num.cmi"; "ratio.cmi" ]
+  in
+  let num_path = Ocamlfind.num_path () in
+  Ocamlfind.stdlib_path ()
+  |> Bos.OS.Dir.fold_contents
+       (fun path acc ->
+         if Fpath.has_ext "cmi" path then
+           match Fpath.relativize ~root path with
+           | Some path ->
+               let package, path =
+                 let file = Fpath.filename path in
+                 if List.mem file num_cmis then
+                   (num_pkg, Fpath.(num_path / file))
+                 else (stdlib_pkg, path)
+               in
+               { package; path } :: acc
+           | None -> acc
+         else acc)
+       []
diff --git a/src/voodoo-prep/jsoo_cmi.mli b/src/voodoo-prep/jsoo_cmi.mli
new file mode 100644
index 00000000..017877c2
--- /dev/null
+++ b/src/voodoo-prep/jsoo_cmi.mli
@@ -0,0 +1,17 @@
+module StringSet : Set.S with type elt = string
+
+type t = { package : Package.t; path : Fpath.t }
+
+val pp : t Fmt.t
+val compare : t -> t -> int
+
+val stdlib : Package.t list -> (t list, Bos_setup.R.msg) Bos_setup.result
+(** [stdlib pkgs] returns the [*.cmi] files from the stdlib. The
+    cmi files are linked to the [ocaml-base-compiler] package
+    found among [pkgs]. *)
+
+val server_path : t -> Fpath.t
+
+val copy : StringSet.t -> t list -> unit
+(** [copy universes cmis] copies [cmis] files whose [universe_id]
+    is included in [universes] from [prep/] to [jsoo/]. *)
diff --git a/src/voodoo-prep/jsoo_toplevel.ml b/src/voodoo-prep/jsoo_toplevel.ml
new file mode 100644
index 00000000..a54e6086
--- /dev/null
+++ b/src/voodoo-prep/jsoo_toplevel.ml
@@ -0,0 +1,123 @@
+module Result = Bos_setup.R
+open Result.Infix
+
+type t = {
+  package : Package.t;
+  cma_fpath : Fpath.t;
+  dep_cmas : Jsoo_cma.t list;
+  cmis : Jsoo_cmi.t list;
+  js_files : Fpath.t list;
+  digest : Digest.t option;
+}
+
+let meta_ext = ".jstop"
+
+let bc_exe_name vv =
+  Printf.sprintf "top_worker_main_%s.bc" Fpath.(basename vv.cma_fpath)
+
+let js_name vv = Fpath.basename vv.cma_fpath ^ ".worker.js"
+let meta_name vv = js_name vv ^ meta_ext
+
+let pp fmt v =
+  Format.fprintf fmt "{ package: %a; bc_exe_fpath: %a; js_files: [%a] }"
+    Package.pp v.package Fpath.pp v.cma_fpath
+    (Format.pp_print_list
+       ~pp_sep:(fun fmt () -> Format.fprintf fmt ";")
+       Fpath.pp)
+    v.js_files
+
+let meta_path vv = Fpath.(Package.prep_path vv.package / meta_name vv)
+let output_path vv = Fpath.(Package.jsoo_path vv.package / js_name vv)
+let bc_exe_path vv = Fpath.(Package.prep_path vv.package / bc_exe_name vv)
+let js_dest_path vv = Fpath.(Package.prep_path vv.package / "voodoo_js_files")
+
+let digested_path vv =
+  Util.O.to_result vv.digest ~none:(Bos_setup.R.msg "No digest")
+  >>| fun digest ->
+  Fpath.(Paths.jsoo / "toplevel-by-digest" / digest / "toplevel.js")
+
+let marshal v =
+  let path = meta_path v in
+  let oc = open_out_bin (Fpath.to_string path) in
+  Marshal.to_channel oc v [];
+  close_out oc
+
+let unmarshal path : t =
+  let ic = open_in_bin path in
+  let result = Marshal.from_channel ic in
+  close_in ic;
+  result
+
+let build_toplevel vv =
+  let path = Fpath.(Package.prep_path vv.package / "top_worker_main.ml") in
+  Util.write_file path [ "let () = Js_top_worker.Worker.run ()" ];
+  let bc_exe_fpath = bc_exe_path vv in
+  let cmd =
+    Bos.Cmd.(
+      Ocamlfind.cmd % "ocamlc" % "-package" % "js_top_worker" % p path
+      % "-linkpkg" % "-linkall" % "-o" % p bc_exe_fpath)
+  in
+  Logs.debug (fun m -> m "toplevel bc: %a\n%!" Bos.Cmd.pp cmd);
+  Util.run_silent cmd
+
+let copy_js_files root vv =
+  let dest_path = js_dest_path vv in
+  Util.mkdir_p dest_path;
+  List.iter
+    (fun js ->
+      let src = Fpath.(root / "lib" // js) in
+      let dst = Fpath.(dest_path // js) in
+      let dir, _ = Fpath.split_base dst in
+      Util.mkdir_p dir;
+      Util.cp src dst)
+    vv.js_files
+
+let cmd vv =
+  let cmd =
+    Bos.Cmd.(v "js_of_ocaml" % "--toplevel" % "--pretty" % "--no-cmis")
+  in
+  let js f = Fpath.(js_dest_path vv // f |> to_string) in
+  let cmd =
+    List.fold_right
+      (fun a cmd -> Bos.Cmd.(cmd % a))
+      (List.map js vv.js_files @ [ "+toplevel.js"; "+dynlink.js" ])
+      cmd
+  in
+  Bos.Cmd.(cmd % p (bc_exe_path vv) % "-o" % p (output_path vv))
+
+let process toplevel_fpath =
+  Logs.info (fun m -> m "Processing %a%!" Fpath.pp toplevel_fpath);
+  let toplevel = unmarshal (Fpath.to_string toplevel_fpath) in
+  let cmd = cmd toplevel in
+  let dir = fst (Fpath.split_base (output_path toplevel)) in
+  Util.mkdir_p dir;
+  Logs.debug (fun m -> m "Toplevel: %a\n%!" Bos.Cmd.pp cmd);
+  Util.run_silent cmd;
+  let digest =
+    Some (Digest.file (Fpath.to_string @@ output_path toplevel) |> Digest.to_hex)
+  in
+  let toplevel = { toplevel with digest } in
+  digested_path toplevel >>| fun digested_path ->
+  let digested_dir, _ = Fpath.split_base digested_path in
+  Util.mkdir_p digested_dir;
+  Util.mv (output_path toplevel) digested_path;
+  { toplevel with digest }
+
+let dep_cma_to_yojson cma =
+  `Assoc
+    [
+      ("path", `String (Jsoo_cma.server_path cma |> Fpath.to_string));
+      ("function", `String (Jsoo_cma.func_name cma));
+    ]
+
+let cmi_to_yojson cmi = `String (Jsoo_cmi.server_path cmi |> Fpath.to_string)
+
+let to_yojson t =
+  let package = ("package", `String (Fpath.basename t.cma_fpath)) in
+  let cma = ("cma", `String (js_name t)) in
+  let dep_cmas = ("dep_cmas", `List (List.map dep_cma_to_yojson t.dep_cmas)) in
+  let cmis = ("cmis", `List (List.map cmi_to_yojson t.cmis)) in
+  Util.O.to_result t.digest ~none:(Bos_setup.R.msg "No digest")
+  >>| fun digest ->
+  let digest = ("digest", `String digest) in
+  `Assoc [ package; cma; dep_cmas; cmis; digest ]
diff --git a/src/voodoo-prep/jsoo_toplevel.mli b/src/voodoo-prep/jsoo_toplevel.mli
new file mode 100644
index 00000000..297b6793
--- /dev/null
+++ b/src/voodoo-prep/jsoo_toplevel.mli
@@ -0,0 +1,29 @@
+type t = {
+  package : Package.t;
+  cma_fpath : Fpath.t;
+  dep_cmas : Jsoo_cma.t list;
+  cmis : Jsoo_cmi.t list;
+  js_files : Fpath.t list;
+  digest : Digest.t option;
+}
+
+val pp : t Fmt.t
+
+val build_toplevel : t -> unit
+(** [build_toplevel t] builds the toplevel worker for package [t]. *)
+
+val copy_js_files : Fpath.t -> t -> unit
+(** [copy_js_files root t] copies the [*.js] files from the
+    [root/lib] directory into [prep/voodoo_js_files]. *)
+
+val marshal : t -> unit
+(** Serialize. *)
+
+val meta_ext : string
+(** [.jstop] file extension. *)
+
+val process : Fpath.t -> (t, Bos_setup.R.msg) Bos_setup.result
+(** [process path] deserializes the toplevel file located at [path],
+    then runs [js_of_ocaml] on it. *)
+
+val to_yojson : t -> (Yojson.Safe.t, Bos_setup.R.msg) Bos_setup.result
diff --git a/src/voodoo-prep/main.ml b/src/voodoo-prep/main.ml
index 830e2b7e..b902a434 100644
--- a/src/voodoo-prep/main.ml
+++ b/src/voodoo-prep/main.ml
@@ -15,23 +15,52 @@ module Prep = struct
       & opt (some string) None
       & info [ "s"; "switch" ] ~doc ~docv:"SWITCH")
 
-  let prep switch universes =
+  let prep switch universes ref_universes =
     Opam.switch := switch;
-    Prep.run universes
+    Prep.run universes ref_universes
 
   let universes =
-    let doc = "Provide universe spec as 'package=universe id' couples" in
+    let doc = "Provide universe spec as 'package:universe_id' couples" in
     Arg.(
       value
       & opt (list (pair ~sep:':' string string)) []
       & info [ "u"; "universes" ] ~doc)
 
-  let cmd = Term.(const prep $ switch $ universes)
+  let ref_universes =
+    let doc =
+      "Provide extra universes as 'package:universe_id' couples. These will \
+       not be prepped but can be referenced by jsoo toplevels."
+    in
+    Arg.(
+      value
+      & opt (list (pair ~sep:':' string string)) []
+      & info [ "r"; "ref-universes" ] ~doc)
+
+  let cmd = Term.(const prep $ switch $ universes $ ref_universes)
   let info = Term.info "prep" ~doc:"Prep a directory tree for compiling"
 end
 
+module Jsoo_cmd = struct
+  let jsoo package = Jsoo.run Paths.prep package
+
+  (* Not used? *)
+  let package =
+    let doc = "Restrict processing to a particular package" in
+    Arg.(
+      value & opt (some string) None & info [ "p"; "package" ] ~doc ~docv:"PKG")
+
+  let cmd = Term.(const jsoo $ package)
+  let info = Term.info "jsoo" ~doc:"Make jsoo toplevels"
+end
+
 let _ =
-  match Term.eval_choice ~err:Format.err_formatter Prep.(cmd, info) [] with
+  Logs.set_reporter (Logs_fmt.reporter ());
+  Logs.set_level (Some Logs.Info);
+  match
+    Term.eval_choice ~err:Format.err_formatter
+      Prep.(Term.term_result @@ cmd, info)
+      [ Jsoo_cmd.(Term.term_result @@ cmd, info) ]
+  with
   | `Error _ ->
       Format.pp_print_flush Format.err_formatter ();
       exit 2
diff --git a/src/voodoo-prep/ocamlfind.ml b/src/voodoo-prep/ocamlfind.ml
new file mode 100644
index 00000000..581cd622
--- /dev/null
+++ b/src/voodoo-prep/ocamlfind.ml
@@ -0,0 +1,72 @@
+module Result = Bos_setup.R
+open Result.Infix
+
+let cmd = Bos.Cmd.v "ocamlfind"
+
+let list () =
+  Util.lines_of_process Bos.Cmd.(Opam.exec () %% cmd % "list")
+  |> List.map (fun line -> Astring.String.fields line |> List.hd)
+
+let cma_of_package pkg =
+  try
+    let cmd =
+      Bos.Cmd.(
+        Opam.exec () %% cmd % "query" % "-predicates" % "byte,javascript"
+        % "-a-format" % pkg)
+    in
+    let exec_answer = Util.lines_of_process cmd |> List.hd in
+    Some (Fpath.v exec_answer)
+  with _ -> None
+
+let stdlib_path () =
+  let cmd = Bos.Cmd.(Opam.exec () %% cmd % "printconf" % "stdlib") in
+  Util.lines_of_process cmd |> List.hd |> Fpath.v
+
+let num_path () =
+  let cmd =
+    Bos.Cmd.(
+      Opam.exec () %% cmd % "query" % "-predicates" % "bytes" % "-r" % "num")
+  in
+  Util.lines_of_process cmd |> List.hd |> Fpath.v
+
+let include_paths pkg =
+  let cmd =
+    Bos.Cmd.(
+      Opam.exec () %% cmd % "query" % "-predicates" % "byte,javascript"
+      % "-i-format" % "-r" % pkg)
+  in
+  let lines = Util.lines_of_process cmd in
+  List.map
+    (fun f ->
+      match Astring.String.fields f with
+      | [ "-I"; path ] -> path ^ "/"
+      | _ -> assert false)
+    lines
+
+let js_files pkg =
+  let cmd =
+    Bos.Cmd.(
+      Opam.exec () %% cmd % "query" % "-predicates" % "byte,javascript"
+      % "-o-format" % "-r" % pkg)
+  in
+  Util.lines_of_process cmd
+  |> List.map (fun s ->
+         match s.[0] with
+         | '-' ->
+             Format.eprintf "Ignoring jsoo option passed: %s\n%!" s;
+             Ok None
+         | '+' -> Ok (Some (String.sub s 1 (String.length s - 1) |> Fpath.v))
+         | _ -> Bos_setup.R.error_msg s)
+  |> Util.R.combine_list
+  >>| fun js_files ->
+  List.fold_right
+    (fun f acc -> match f with Some x -> x :: acc | None -> acc)
+    js_files []
+
+let dep_cmas pkg =
+  let cmd =
+    Bos.Cmd.(
+      Opam.exec () %% cmd % "query" % "-predicates" % "byte,javascript"
+      % "-a-format" % "-r" % pkg)
+  in
+  Util.lines_of_process cmd |> List.map Fpath.v
diff --git a/src/voodoo-prep/ocamlfind.mli b/src/voodoo-prep/ocamlfind.mli
new file mode 100644
index 00000000..977d0545
--- /dev/null
+++ b/src/voodoo-prep/ocamlfind.mli
@@ -0,0 +1,13 @@
+val cmd : Bos.Cmd.t
+val list : unit -> string list
+val cma_of_package : string -> Fpath.t option
+
+val stdlib_path : unit -> Fpath.t
+(** [stdlib_path ()] returns the path to the stdlib [lib/ocaml/]. *)
+
+val num_path : unit -> Fpath.t
+(** [num_path ()] returns the path to the num library [lib/num/]. *)
+
+val include_paths : string -> string list
+val js_files : string -> (Fpath.t list, Bos_setup.R.msg) Bos_setup.result
+val dep_cmas : string -> Fpath.t list
diff --git a/src/voodoo-prep/opam.ml b/src/voodoo-prep/opam.ml
index 9949e2e6..86231e93 100644
--- a/src/voodoo-prep/opam.ml
+++ b/src/voodoo-prep/opam.ml
@@ -86,3 +86,5 @@ let opam_file name version =
     close_in ic;
     Some lines
   with _ -> None
+
+let exec () = Bos.Cmd.(opam % "exec" % "--switch" % get_switch () % "--")
diff --git a/src/voodoo-prep/opam.mli b/src/voodoo-prep/opam.mli
index 32b49230..b2ffa4c1 100644
--- a/src/voodoo-prep/opam.mli
+++ b/src/voodoo-prep/opam.mli
@@ -5,3 +5,4 @@ val prefix : unit -> string
 val all_opam_packages : unit -> package list
 val pkg_contents : string -> Fpath.t list
 val opam_file : string -> string -> string list option
+val exec : unit -> Bos.Cmd.t
diff --git a/src/voodoo-prep/package.ml b/src/voodoo-prep/package.ml
index 4410e889..a4071fce 100644
--- a/src/voodoo-prep/package.ml
+++ b/src/voodoo-prep/package.ml
@@ -1,4 +1,11 @@
 type t = { universe_id : string; name : string; version : string }
 
-let prep_path p =
-  Fpath.(Paths.prep / "universes" / p.universe_id / p.name / p.version)
+let path ty p = Fpath.(ty / "universes" / p.universe_id / p.name / p.version)
+let prep_path = path Paths.prep
+let jsoo_path = path Paths.jsoo
+let pp fmt t = Format.fprintf fmt "(%s,%s,%s)" t.universe_id t.name t.version
+
+let compare x y =
+  let xs = Format.asprintf "%a" pp x in
+  let ys = Format.asprintf "%a" pp y in
+  String.compare xs ys
diff --git a/src/voodoo-prep/package.mli b/src/voodoo-prep/package.mli
index f9124874..c36ecbbd 100644
--- a/src/voodoo-prep/package.mli
+++ b/src/voodoo-prep/package.mli
@@ -1,3 +1,6 @@
 type t = { universe_id : string; name : string; version : string }
 
+val pp : t Fmt.t
+val compare : t -> t -> int
 val prep_path : t -> Fpath.t
+val jsoo_path : t -> Fpath.t
diff --git a/src/voodoo-prep/paths.ml b/src/voodoo-prep/paths.ml
index 3e4f95c9..52879b6d 100644
--- a/src/voodoo-prep/paths.ml
+++ b/src/voodoo-prep/paths.ml
@@ -1,3 +1,4 @@
 type t = Fpath.t
 
 let prep = Fpath.v "prep" (* warning: to keep in sync with lib/paths.ml *)
+let jsoo = Fpath.v "jsoo"
diff --git a/src/voodoo-prep/paths.mli b/src/voodoo-prep/paths.mli
index 5ef0e105..59e3f4a2 100644
--- a/src/voodoo-prep/paths.mli
+++ b/src/voodoo-prep/paths.mli
@@ -1,3 +1,4 @@
 type t = Fpath.t
 
 val prep : t
+val jsoo : t
diff --git a/src/voodoo-prep/prep.ml b/src/voodoo-prep/prep.ml
index 0d1be66e..98156a63 100644
--- a/src/voodoo-prep/prep.ml
+++ b/src/voodoo-prep/prep.ml
@@ -37,9 +37,11 @@ let process_package : Fpath.t -> Package.t -> Fpath.t list -> unit =
       && List.mem ext [ ".cmt"; ".cmti"; ".cmi" ]
       && not has_hyphen
     in
+    let is_cma = ext = ".cma" in
+    let is_js = ext = ".js" in
     let do_copy =
       (not in_build_dir)
-      && (is_in_doc_dir || is_module
+      && (is_in_doc_dir || is_module || is_cma || is_js
          || List.mem no_ext (List.map Fpath.v [ "META"; "dune-package" ]))
     in
     let is_cma = process_ocaml_artefacts && List.mem ext [ ".cma"; ".cmxa" ] in
@@ -58,7 +60,7 @@ let process_package : Fpath.t -> Package.t -> Fpath.t list -> unit =
     (fun (src, dst) ->
       let dir, _ = Fpath.split_base dst in
       Util.mkdir_p dir;
-      Util.cp (Fpath.to_string src) (Fpath.to_string dst))
+      Util.cp src dst)
     actions.copy;
   List.iter
     (fun fpath ->
@@ -69,7 +71,15 @@ let process_package : Fpath.t -> Package.t -> Fpath.t list -> unit =
       Util.write_file Fpath.(dest // set_ext "ocamlobjinfo" fpath) lines)
     actions.objinfo
 
-let run (universes : (string * string) list) =
+let write_opam_file (package : Package.t) =
+  match Opam.opam_file package.name package.version with
+  | Some lines ->
+      let dest = Package.prep_path package in
+      Util.write_file Fpath.(dest / "opam") lines
+  | None -> ()
+
+let run (universes : (string * string) list)
+    (ref_universes : (string * string) list) =
   let get_universe =
     match universes with
     | [] ->
@@ -83,38 +93,36 @@ let run (universes : (string * string) list) =
           let name = pkg.Opam.name in
           let version = pkg.version in
           incr id;
-          Some { Package.universe_id; name; version }
+          Some ({ Package.universe_id; name; version }, `Prep)
     | _ -> (
         fun pkg ->
+          let name = pkg.name in
+          let version = pkg.version in
           try
             let universe_id = List.assoc pkg.Opam.name universes in
-            let name = pkg.name in
-            let version = pkg.version in
-            Some { universe_id; name; version }
-          with _ -> None)
+            Some ({ universe_id; name; version }, `Prep)
+          with Not_found -> (
+            try
+              let universe_id = List.assoc pkg.Opam.name ref_universes in
+              Some ({ universe_id; name; version }, `Reference)
+            with Not_found -> None))
   in
 
-  let packages =
-    Opam.all_opam_packages ()
-    |> List.fold_left
-         (fun acc pkg ->
-           match get_universe pkg with Some pkg -> pkg :: acc | None -> acc)
-         []
-  in
+  let packages = Opam.all_opam_packages () |> List.filter_map get_universe in
   let root = Opam.prefix () |> Fpath.v in
   let pkg_contents =
     List.map
-      (fun package -> (package, Opam.pkg_contents package.Package.name))
+      (fun (package, ty) ->
+        let files = Opam.pkg_contents package.Package.name in
+        let cmas =
+          match ty with
+          | `Prep ->
+              process_package root package files;
+              write_opam_file package;
+              List.filter (Fpath.has_ext ".cma") files
+          | `Reference -> []
+        in
+        (package, cmas, files))
       packages
   in
-  List.iter
-    (fun (package, files) -> process_package root package files)
-    pkg_contents;
-  List.iter
-    (fun package ->
-      match Opam.opam_file package.Package.name package.version with
-      | Some lines ->
-          let dest = Package.prep_path package in
-          Util.write_file Fpath.(dest / "opam") lines
-      | None -> ())
-    packages
+  Jsoo.copy_files root pkg_contents
diff --git a/src/voodoo-prep/prep.mli b/src/voodoo-prep/prep.mli
index ac3bc085..080efd73 100644
--- a/src/voodoo-prep/prep.mli
+++ b/src/voodoo-prep/prep.mli
@@ -1 +1,4 @@
-val run : (string * string) list -> unit
+val run :
+  (string * string) list ->
+  (string * string) list ->
+  (unit, Bos_setup.R.msg) Bos_setup.result
diff --git a/src/voodoo-prep/util.ml b/src/voodoo-prep/util.ml
index 8e5d363a..a4d2cb89 100644
--- a/src/voodoo-prep/util.ml
+++ b/src/voodoo-prep/util.ml
@@ -11,10 +11,15 @@ let lines_of_channel ic =
   inner []
 
 let lines_of_process cmd =
-  match OS.Cmd.(run_out ~err:err_null cmd |> to_lines) with
+  match OS.Cmd.(run_out ~err:err_stderr cmd |> to_lines) with
   | Ok x -> x
   | Error (`Msg e) -> failwith ("Error: " ^ e)
 
+let run_silent cmd =
+  match OS.Cmd.(run_out ~err:err_stderr cmd |> to_null) with
+  | Ok () -> ()
+  | Error _ -> Logs.err (fun m -> m "Command failed: %a%!" Bos.Cmd.pp cmd)
+
 let mkdir_p d =
   let segs =
     Fpath.segs (Fpath.normalize d) |> List.filter (fun s -> String.length s > 0)
@@ -40,4 +45,23 @@ let write_file filename lines =
   List.iter (fun line -> Printf.fprintf oc "%s\n" line) lines;
   close_out oc
 
-let cp src dst = assert (lines_of_process Cmd.(v "cp" % src % dst) = [])
+let cp src dst = run_silent Cmd.(v "cp" % p src % p dst)
+let mv src dst = run_silent Cmd.(v "mv" % p src % p dst)
+
+module O = struct
+  let to_result ~none = function Some x -> Ok x | None -> Error none
+end
+
+module R = struct
+  open Bos_setup.R.Infix
+
+  let combine_list lx =
+    List.fold_left
+      (fun acc x ->
+        acc >>= fun acc ->
+        x >>| fun x -> x :: acc)
+      (Ok []) lx
+
+  let iter_list ~f lx =
+    List.fold_left (fun acc x -> acc >>= fun () -> f x) (Ok ()) lx
+end
diff --git a/src/voodoo-prep/util.mli b/src/voodoo-prep/util.mli
index c29779d9..4e4ea313 100644
--- a/src/voodoo-prep/util.mli
+++ b/src/voodoo-prep/util.mli
@@ -1,5 +1,23 @@
 val lines_of_channel : in_channel -> string list
 val lines_of_process : Bos.Cmd.t -> string list
+val run_silent : Bos.Cmd.t -> unit
 val mkdir_p : Fpath.t -> unit
 val write_file : Fpath.t -> string list -> unit
-val cp : string -> string -> unit
+val cp : Fpath.t -> Fpath.t -> unit
+val mv : Fpath.t -> Fpath.t -> unit
+
+module O : sig
+  val to_result : none:'e -> 'a option -> ('a, 'e) Bos_setup.result
+end
+
+module R : sig
+  val combine_list :
+    ('a, 'e) Bos_setup.result list -> ('a list, 'e) Bos_setup.result
+  (** [combine_list lx] returns a single result from a list of results. *)
+
+  val iter_list :
+    f:('a -> (unit, 'e) Bos_setup.result) ->
+    'a list ->
+    (unit, 'e) Bos_setup.result
+  (** [iter_list ~f lx] applies [f] to every element of [lx] and returns the result. *)
+end
diff --git a/src/voodoo/js_toplevel.ml b/src/voodoo/js_toplevel.ml
new file mode 100644
index 00000000..3becb3ca
--- /dev/null
+++ b/src/voodoo/js_toplevel.ml
@@ -0,0 +1,22 @@
+let find package =
+  let path = Package.prep_path package in
+  let res =
+    Bos.OS.Dir.fold_contents ~elements:`Files ~dotfiles:false ~traverse:`None
+      (fun p js -> if Fpath.has_ext "js" p then p :: js else js)
+      [] path
+  in
+  match res with Ok js -> js | Error _ -> []
+
+let copy files dest_dir =
+  let () =
+    match Bos.OS.Dir.create dest_dir with
+    | Ok _ -> ()
+    | Error (`Msg m) ->
+        Format.eprintf "Failed to create destination dir: %s\n%!" m;
+        ()
+  in
+  let copy src =
+    let dest_file = Fpath.(dest_dir / basename src) in
+    ignore (Util.copy src dest_file)
+  in
+  List.iter copy files
diff --git a/src/voodoo/js_toplevel.mli b/src/voodoo/js_toplevel.mli
new file mode 100644
index 00000000..2ff0d53c
--- /dev/null
+++ b/src/voodoo/js_toplevel.mli
@@ -0,0 +1,5 @@
+val find : Package.t -> Fpath.t list
+(** [find pkg] returns the path to [*.js] toplevel files. *)
+
+val copy : Fpath.t list -> Fpath.t -> unit
+(** [copy files dest] copies the files [files] into directory [dest]. *)
diff --git a/src/voodoo/serialize/status.ml b/src/voodoo/serialize/status.ml
index 29cd828f..dde7de30 100644
--- a/src/voodoo/serialize/status.ml
+++ b/src/voodoo/serialize/status.ml
@@ -49,7 +49,7 @@ module Otherdocs = struct
     `Assoc [ readme; license; changes; others ]
 end
 
-type t = { failed : bool; otherdocs : Otherdocs.t }
+type t = { failed : bool; universe : string; otherdocs : Otherdocs.t }
 
 let equal x y = x.failed = y.failed && Otherdocs.equal x.otherdocs y.otherdocs
 
@@ -60,10 +60,12 @@ let pp fs x =
 let of_yojson json =
   let open Yojson.Safe.Util in
   let failed = json |> member "failed" |> to_bool in
+  let universe = json |> member "universe" |> to_string in
   let otherdocs = json |> member "otherdocs" |> Otherdocs.of_yojson in
-  { failed; otherdocs }
+  { failed; universe; otherdocs }
 
-let to_yojson { failed; otherdocs } =
+let to_yojson { failed; universe; otherdocs } =
   let failed = ("failed", `Bool failed) in
+  let universe = ("universe", `String universe) in
   let otherdocs = ("otherdocs", Otherdocs.to_yojson otherdocs) in
-  `Assoc [ failed; otherdocs ]
+  `Assoc [ failed; universe; otherdocs ]
diff --git a/src/voodoo/serialize/status.mli b/src/voodoo/serialize/status.mli
index 773229ba..96fef8f3 100644
--- a/src/voodoo/serialize/status.mli
+++ b/src/voodoo/serialize/status.mli
@@ -13,7 +13,7 @@ module Otherdocs : sig
   val to_yojson : t Conv.to_yojson
 end
 
-type t = { failed : bool; otherdocs : Otherdocs.t }
+type t = { failed : bool; universe : string; otherdocs : Otherdocs.t }
 
 val equal : t -> t -> bool
 val pp : Format.formatter -> t -> unit
diff --git a/test/can-render-org-files.t b/test/can-render-org-files.t
index 90a33c76..5a7f9303 100644
--- a/test/can-render-org-files.t
+++ b/test/can-render-org-files.t
@@ -7,6 +7,581 @@ Generate the can-render-org-files documentation
 
   $ voodoo-prep
   Warning: No universes have been specified: will generate dummy universes
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/base_quickcheck/ppx_quickcheck/ppx_quickcheck.cma
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/js_of_ocaml-ppx/ppx_js_rewriter.cma
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/lwt_ppx/ppx_lwt.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/num-top/num_top.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/threads/threads.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/stdlib.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/ocamldoc/odoc_info.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/compiler-libs/ocamlmiddleend.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -linkall
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/rpc-generator/rpc_generator.cma
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+  voodoo-prep: [INFO] No findlib pkg for archive lib/netsys/netsys.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/netstring/netaccel.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -custom
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -custom
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_assert/ppx_assert.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_base/ppx_base.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_bench/ppx_bench.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_bin_prot/ppx_bin_prot.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_cold/ppx_cold.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_compare/ppx_compare.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_custom_printf/ppx_custom_printf.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/std/ppx_deriving_std.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/show/ppx_deriving_show.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/ord/ppx_deriving_ord.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/map/ppx_deriving_map.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/make/ppx_deriving_make.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/iter/ppx_deriving_iter.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/fold/ppx_deriving_fold.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/eq/ppx_deriving_eq.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/enum/ppx_deriving_enum.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/create/ppx_deriving_create.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving_rpc/ppx_deriving_rpc.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving_yaml/ppx_deriving_yaml.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving_yojson/ppx_deriving_yojson.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_disable_unused_warnings/ppx_disable_unused_warnings.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_enumerate/ppx_enumerate.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_expect/ppx_expect.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_fields_conv/ppx_fields_conv.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_fixed_literal/ppx_fixed_literal.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_hash/ppx_hash.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_here/ppx_here.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_ignore_instrumentation/ppx_ignore_instrumentation.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_inline_test/ppx_inline_test.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_inline_test/drop/ppx_inline_test_drop.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_jane/ppx_jane.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_jane/kernel/ppx_jane_kernel.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_let/ppx_let.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_log/ppx_log.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_log/kernel/ppx_log_kernel.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_module_timer/ppx_module_timer.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_optcomp/ppx_optcomp.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_optional/ppx_optional.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_pipebang/ppx_pipebang.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_sexp_conv/ppx_sexp_conv.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_sexp_message/ppx_sexp_message.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_sexp_value/ppx_sexp_value.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_show/ppx_show.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_stable/ppx_stable.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_string/ppx_string.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_typerep_conv/ppx_typerep_conv.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_variants_conv/ppx_variants_conv.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppxlib/traverse/ppxlib_traverse.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppxlib/metaquot/ppxlib_metaquot.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/sedlex/ppx/sedlex_ppx.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
 
   $ voodoo-do -p $PKG -b 2> /dev/null
 
@@ -18,6 +593,7 @@ Generates a status.json file
   $ cat output/p/$PKG/1.0/status.json | jq .
   {
     "failed": false,
+    "universe": "25",
     "otherdocs": {
       "readme": [
         "linked/p/can-render-org-files/1.0/doc/README.org"
@@ -25,6 +601,7 @@ Generates a status.json file
       "license": [],
       "changes": [],
       "others": [
+        "linked/p/can-render-org-files/1.0/universe.txt",
         "linked/p/can-render-org-files/1.0/package.json"
       ]
     }
diff --git a/test/can-render-tables.t b/test/can-render-tables.t
index 6f025924..490798ff 100644
--- a/test/can-render-tables.t
+++ b/test/can-render-tables.t
@@ -7,6 +7,581 @@ Generate the can-render-tables documentation
 
   $ voodoo-prep
   Warning: No universes have been specified: will generate dummy universes
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/base_quickcheck/ppx_quickcheck/ppx_quickcheck.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/js_of_ocaml-ppx/ppx_js_rewriter.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/lwt_ppx/ppx_lwt.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/num-top/num_top.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/threads/threads.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/stdlib.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/ocamldoc/odoc_info.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/compiler-libs/ocamlmiddleend.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -linkall
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/rpc-generator/rpc_generator.cma
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+  voodoo-prep: [INFO] No findlib pkg for archive lib/netsys/netsys.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/netstring/netaccel.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -custom
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -custom
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_assert/ppx_assert.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_base/ppx_base.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_bench/ppx_bench.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_bin_prot/ppx_bin_prot.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_cold/ppx_cold.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_compare/ppx_compare.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_custom_printf/ppx_custom_printf.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/std/ppx_deriving_std.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/show/ppx_deriving_show.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/ord/ppx_deriving_ord.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/map/ppx_deriving_map.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/make/ppx_deriving_make.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/iter/ppx_deriving_iter.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/fold/ppx_deriving_fold.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/eq/ppx_deriving_eq.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/enum/ppx_deriving_enum.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_deriving/create/ppx_deriving_create.cma
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
 
   $ voodoo-do -p $PKG -b 2> /dev/null
 
@@ -18,6 +593,7 @@ Generates a status.json file
   $ cat output/p/$PKG/1.0/status.json | jq .
   {
     "failed": false,
+    "universe": "26",
     "otherdocs": {
       "readme": [
         "linked/p/can-render-tables/1.0/doc/README.md"
@@ -25,6 +601,7 @@ Generates a status.json file
       "license": [],
       "changes": [],
       "others": [
+        "linked/p/can-render-tables/1.0/universe.txt",
         "linked/p/can-render-tables/1.0/package.json"
       ]
     }
diff --git a/test/uninstalled_package.t b/test/uninstalled_package.t
index 1778a609..3ec173b9 100644
--- a/test/uninstalled_package.t
+++ b/test/uninstalled_package.t
@@ -2,6 +2,581 @@ Call voodoo-do on an uninstalled package
 
   $ voodoo-prep
   Warning: No universes have been specified: will generate dummy universes
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/base_quickcheck/ppx_quickcheck/ppx_quickcheck.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/js_of_ocaml-ppx/ppx_js_rewriter.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/lwt_ppx/ppx_lwt.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/num-top/num_top.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/threads/threads.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/stdlib.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/ocamldoc/odoc_info.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ocaml/compiler-libs/ocamlmiddleend.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -linkall
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/rpc-generator/rpc_generator.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/netsys/netsys_oothr_mt.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/netsys/netsys.cma
+  voodoo-prep: [INFO] No findlib pkg for archive lib/netstring/netaccel.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -custom
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  Ignoring jsoo option passed: -custom
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_assert/ppx_assert.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  voodoo-prep: [INFO] No findlib pkg for archive lib/ppx_bin_prot/ppx_bin_prot.cma
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
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+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
+  findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /Users/gp/ocaml.org/_opam/lib/ocaml, /Users/gp/ocaml.org/_opam/lib/ocaml/compiler-libs
 
   $ voodoo-do -p doesnt-exist -b
   Failed to find package doesnt-exist
diff --git a/test/unit/serialize/test_status.ml b/test/unit/serialize/test_status.ml
index 9169597a..f62d29dd 100644
--- a/test/unit/serialize/test_status.ml
+++ b/test/unit/serialize/test_status.ml
@@ -39,8 +39,8 @@ let test x =
 
 let inputs =
   [
-    { failed = true; otherdocs = Otherdocs.empty };
-    { failed = false; otherdocs = Otherdocs.dummy };
+    { failed = true; universe = "0"; otherdocs = Otherdocs.empty };
+    { failed = false; universe = "1"; otherdocs = Otherdocs.dummy };
   ]
 
 let suite = ("Status", List.map test inputs)
diff --git a/voodoo-prep.opam b/voodoo-prep.opam
index 0f546fe4..48cb367a 100644
--- a/voodoo-prep.opam
+++ b/voodoo-prep.opam
@@ -13,7 +13,10 @@ depends: [
   "cmdliner"
   "fpath"
   "bos"
+  "js_of_ocaml-compiler"
+  "js_of_ocaml-toplevel"
   "opam-format" {>= "2.0.0"}
+  "yojson" {>= "1.6.0"}
   "odoc" {with-doc}
 ]
 build: [