do not re-export stuff, unhide Format.formatter

dune-project

@@ -29,9 +29,5 @@
  (depends
   (ocaml
    (>= 4.13))
-  bos
-  cmdliner
-  fmt
-  fpath
   (ocamlformat :with-dev-setup)
   (odoc :with-dev-setup)))

prelude.opam

@@ -12,10 +12,6 @@ bug-reports: "https://git.zapashcanon.fr/zapashcanon/prelude/issues"
 depends: [
   "dune" {>= "3.0"}
   "ocaml" {>= "4.13"}
-  "bos"
-  "cmdliner"
-  "fmt"
-  "fpath"
   "ocamlformat" {with-dev-setup}
   "odoc" {with-dev-setup}
   "odoc" {with-doc}

src/dune

@@ -3,7 +3,4 @@
  (modules prelude)
  (wrapped false)
  (libraries
-  (re_export bos)
-  (re_export cmdliner)
-  (re_export fmt)
-  (re_export fpath)))
+  (re_export fmt)))

src/prelude.ml

@@ -275,17 +275,13 @@ end
 (* Use the fmt library instead. *)
 module Printf = Empty
 
-module Fmt = struct
-  type formatter = Format.formatter
-
-  include Fmt
+(* USe the fmt library instead. *)
+module Format = struct
+  type nonrec formatter = Format.formatter
 end
 
-module Format = Empty
-
 (* Use Cmdliner instead. *)
 module Arg = Empty
-module Cmdliner = Cmdliner
 
 (* Use unlabeled version instead. *)
 module ArrayLabels = Empty