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diff --git a/ocamlbuild/resource.mli b/ocamlbuild/resource.mli
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+(***********************************************************************)
+(*                             ocamlbuild                              *)
+(*                                                                     *)
+(*  Nicolas Pouillard, Berke Durak, projet Gallium, INRIA Rocquencourt *)
+(*                                                                     *)
+(*  Copyright 2007 Institut National de Recherche en Informatique et   *)
+(*  en Automatique.  All rights reserved.  This file is distributed    *)
+(*  under the terms of the Q Public License version 1.0.               *)
+(*                                                                     *)
+(***********************************************************************)
+
+(* $Id$ *)
+(* Original author: Nicolas Pouillard *)
+open My_std
+
+open Pathname
+type env
+
+module Resources : Set.S with type elt = t
+
+module Cache :
+  sig
+    type suspension
+
+    type build_status =
+      | Bbuilt
+      | Bcannot_be_built
+      | Bnot_built_yet
+      | Bsuspension of suspension
+
+    val clean : unit -> unit
+    val init : unit -> unit
+    val resource_state : t -> build_status
+    val resource_changed : t -> unit
+    val resource_has_changed : t -> bool
+    val resource_is_built : t -> bool
+    val resource_built : t -> unit
+    val resource_is_failed : t -> bool
+    val resource_failed : t -> unit
+    val suspend_resource : t -> Command.t -> (unit -> unit) -> t list -> unit
+    val resume_resource : t -> unit
+    val resume_suspension : suspension -> unit
+    val get_optional_resource_suspension : t -> (Command.t * (unit -> unit)) option
+    val clear_resource_failed : t -> unit
+    val dependencies : t -> Resources.t
+    val add_dependency : t -> t -> unit
+    val get_digest_for : string -> string option
+    val store_digest : string -> string -> unit
+    val digest_resource : t -> string
+    val print_cache : Format.formatter -> unit -> unit
+    val print_dependencies : Format.formatter -> unit -> unit
+    val fold_dependencies : (string -> string -> 'a -> 'a) -> 'a -> 'a
+  end
+
+val compare : t -> t -> int
+val print : Format.formatter -> t -> unit
+val clean : t -> unit
+val import : string -> t
+
+val matchit : t -> t -> env option
+val subst : env -> t -> t
+val is_up_to_date : t -> bool
+val print_env : Format.formatter -> env -> unit