diff --git a/doc/manual.org b/doc/manual.org
index 4000b29c..f4053cf5 100644
--- a/doc/manual.org
+++ b/doc/manual.org
@@ -166,8 +166,12 @@ anyway.
 *** Odig conventions
 
 Jbuilder follows the [[http://erratique.ch/software/odig][odig]] conventions and automatically installs any
-README*, CHANGE* and LICENSE* files in the same directory as the
-=<package>.opam= file to a location where odig will find them.
+README*, CHANGE*, HISTORY* and LICENSE* files in the same directory as
+the =<package>.opam= file to a location where odig will find them.
+
+Note that this include files present in the source tree as well as
+generated files. So for instance a changelog generated by a rule will
+be automatically installed as well.
 
 ** jbuild
 
diff --git a/src/build_interpret.ml b/src/build_interpret.ml
new file mode 100644
index 00000000..cf7e10c8
--- /dev/null
+++ b/src/build_interpret.ml
@@ -0,0 +1,94 @@
+open Import
+open Build.Repr
+
+module Pset = Path.Set
+module Pmap = Path.Map
+module Vspec = Build.Vspec
+
+module Target = struct
+  type t =
+    | Normal of Path.t
+    | Vfile : _ Vspec.t -> t
+
+  let path = function
+    | Normal p -> p
+    | Vfile (Vspec.T (p, _)) -> p
+
+  let paths ts =
+    List.fold_left ts ~init:Pset.empty ~f:(fun acc t ->
+      Pset.add (path t) acc)
+end
+
+let deps t ~all_targets_by_dir =
+  let rec loop : type a b. (a, b) t -> Pset.t -> Pset.t = fun t acc ->
+    match t with
+    | Arr _ -> acc
+    | Prim _ -> acc
+    | Store_vfile _ -> acc
+    | Compose (a, b) -> loop a (loop b acc)
+    | First t -> loop t acc
+    | Second t -> loop t acc
+    | Split (a, b) -> loop a (loop b acc)
+    | Fanout (a, b) -> loop a (loop b acc)
+    | Paths fns -> Pset.union fns acc
+    | Vpath (Vspec.T (fn, _)) -> Pset.add fn acc
+    | Paths_glob (dir, re) -> begin
+        match Pmap.find dir (Lazy.force all_targets_by_dir) with
+        | None -> Pset.empty
+        | Some targets ->
+          Pset.filter targets ~f:(fun path ->
+            Re.execp re (Path.basename path))
+      end
+    | Dyn_paths t -> loop t acc
+    | Record_lib_deps _ -> acc
+    | Fail _ -> acc
+  in
+  loop (Build.repr t) Pset.empty
+
+let lib_deps =
+  let rec loop : type a b. (a, b) t -> Build.lib_deps Pmap.t -> Build.lib_deps Pmap.t
+    = fun t acc ->
+      match t with
+      | Arr _ -> acc
+      | Prim _ -> acc
+      | Store_vfile _ -> acc
+      | Compose (a, b) -> loop a (loop b acc)
+      | First t -> loop t acc
+      | Second t -> loop t acc
+      | Split (a, b) -> loop a (loop b acc)
+      | Fanout (a, b) -> loop a (loop b acc)
+      | Paths _ -> acc
+      | Vpath _ -> acc
+      | Paths_glob _ -> acc
+      | Dyn_paths t -> loop t acc
+      | Record_lib_deps (dir, deps) ->
+        let data =
+          match Pmap.find dir acc with
+          | None -> deps
+          | Some others -> Build.merge_lib_deps deps others
+        in
+        Pmap.add acc ~key:dir ~data
+      | Fail _ -> acc
+  in
+  fun t -> loop (Build.repr t) Pmap.empty
+
+let targets =
+  let rec loop : type a b. (a, b) t -> Target.t list -> Target.t list = fun t acc ->
+    match t with
+    | Arr _ -> acc
+    | Prim { targets; _ } ->
+      List.fold_left targets ~init:acc ~f:(fun acc fn -> Target.Normal fn :: acc)
+    | Store_vfile spec -> Vfile spec :: acc
+    | Compose (a, b) -> loop a (loop b acc)
+    | First t -> loop t acc
+    | Second t -> loop t acc
+    | Split (a, b) -> loop a (loop b acc)
+    | Fanout (a, b) -> loop a (loop b acc)
+    | Paths _ -> acc
+    | Vpath _ -> acc
+    | Paths_glob _ -> acc
+    | Dyn_paths t -> loop t acc
+    | Record_lib_deps _ -> acc
+    | Fail _ -> acc
+  in
+  fun t -> loop (Build.repr t) []
diff --git a/src/build_interpret.mli b/src/build_interpret.mli
new file mode 100644
index 00000000..c4805eee
--- /dev/null
+++ b/src/build_interpret.mli
@@ -0,0 +1,23 @@
+open Import
+
+module Target : sig
+  type t =
+    | Normal of Path.t
+    | Vfile : _ Build.Vspec.t -> t
+
+  val path : t -> Path.t
+  val paths : t list -> Path.Set.t
+end
+
+val deps
+  :  (_, _) Build.t
+  -> all_targets_by_dir:Path.Set.t Path.Map.t Lazy.t
+  -> Path.Set.t
+
+val lib_deps
+  :  (_, _) Build.t
+  -> Build.lib_deps Path.Map.t
+
+val targets
+  :  (_, _) Build.t
+  -> Target.t list
diff --git a/src/build_system.ml b/src/build_system.ml
index b005098e..b44871ed 100644
--- a/src/build_system.ml
+++ b/src/build_system.ml
@@ -130,19 +130,7 @@ let wait_for_file t fn ~targeting =
         (String.concat ~sep:"\n--> "
            (List.map loop ~f:Path.to_string))
 
-module Target = struct
-  type t =
-    | Normal of Path.t
-    | Vfile : _ Vspec.t -> t
-
-  let path = function
-    | Normal p -> p
-    | Vfile (Vspec.T (p, _)) -> p
-
-  let paths ts =
-    List.fold_left ts ~init:Pset.empty ~f:(fun acc t ->
-      Pset.add (path t) acc)
-end
+module Target = Build_interpret.Target
 
 let get_file : type a. t -> Path.t -> a File_kind.t -> a File_spec.t = fun t fn kind ->
   match Hashtbl.find t.files fn with
@@ -154,82 +142,8 @@ let get_file : type a. t -> Path.t -> a File_kind.t -> a File_spec.t = fun t fn
 let save_vfile (type a) (module K : Vfile_kind.S with type t = a) fn x =
   K.save x ~filename:(Path.to_string fn)
 
-module Build_interpret = struct
-  include Build.Repr
-
-  let deps t ~all_targets_by_dir =
-    let rec loop : type a b. (a, b) t -> Pset.t -> Pset.t = fun t acc ->
-      match t with
-      | Arr _ -> acc
-      | Prim _ -> acc
-      | Store_vfile _ -> acc
-      | Compose (a, b) -> loop a (loop b acc)
-      | First t -> loop t acc
-      | Second t -> loop t acc
-      | Split (a, b) -> loop a (loop b acc)
-      | Fanout (a, b) -> loop a (loop b acc)
-      | Paths fns -> Pset.union fns acc
-      | Vpath (Vspec.T (fn, _)) -> Pset.add fn acc
-      | Paths_glob (dir, re) -> begin
-          match Pmap.find dir (Lazy.force all_targets_by_dir) with
-          | None -> Pset.empty
-          | Some targets ->
-            Pset.filter targets ~f:(fun path ->
-                Re.execp re (Path.basename path))
-        end
-      | Dyn_paths t -> loop t acc
-      | Record_lib_deps _ -> acc
-      | Fail _ -> acc
-    in
-    loop t Pset.empty
-
-  let lib_deps =
-    let rec loop : type a b. (a, b) t -> Build.lib_deps Pmap.t -> Build.lib_deps Pmap.t
-      = fun t acc ->
-        match t with
-        | Arr _ -> acc
-        | Prim _ -> acc
-        | Store_vfile _ -> acc
-        | Compose (a, b) -> loop a (loop b acc)
-        | First t -> loop t acc
-        | Second t -> loop t acc
-        | Split (a, b) -> loop a (loop b acc)
-        | Fanout (a, b) -> loop a (loop b acc)
-        | Paths _ -> acc
-        | Vpath _ -> acc
-        | Paths_glob _ -> acc
-        | Dyn_paths t -> loop t acc
-        | Record_lib_deps (dir, deps) ->
-          let data =
-            match Pmap.find dir acc with
-            | None -> deps
-            | Some others -> Build.merge_lib_deps deps others
-          in
-          Pmap.add acc ~key:dir ~data
-        | Fail _ -> acc
-    in
-    fun t -> loop t Pmap.empty
-
-  let targets =
-    let rec loop : type a b. (a, b) t -> Target.t list -> Target.t list = fun t acc ->
-      match t with
-      | Arr _ -> acc
-      | Prim { targets; _ } ->
-        List.fold_left targets ~init:acc ~f:(fun acc fn -> Target.Normal fn :: acc)
-      | Store_vfile spec -> Vfile spec :: acc
-      | Compose (a, b) -> loop a (loop b acc)
-      | First t -> loop t acc
-      | Second t -> loop t acc
-      | Split (a, b) -> loop a (loop b acc)
-      | Fanout (a, b) -> loop a (loop b acc)
-      | Paths _ -> acc
-      | Vpath _ -> acc
-      | Paths_glob _ -> acc
-      | Dyn_paths t -> loop t acc
-      | Record_lib_deps _ -> acc
-      | Fail _ -> acc
-    in
-    fun t -> loop t []
+module Build_exec = struct
+  open Build.Repr
 
   let exec bs t x ~targeting =
     let rec exec
@@ -271,7 +185,7 @@ module Build_interpret = struct
       | Record_lib_deps _ -> return x
       | Fail { fail } -> fail ()
     in
-    exec t x
+    exec (Build.repr t) x
 end
 
 let add_spec t fn spec ~allow_override =
@@ -288,12 +202,11 @@ let create_file_specs t targets rule ~allow_override =
 
 module Pre_rule = struct
   type t =
-    { build   : (unit, unit) Build.Repr.t
+    { build   : (unit, unit) Build.t
     ; targets : Target.t list
     }
 
   let make build =
-    let build = Build.repr build in
     { build
     ; targets = Build_interpret.targets build
     }
@@ -335,7 +248,7 @@ let compile_rule t ~all_targets_by_dir ?(allow_override=false) pre_rule =
     all_unit
       (Pset.fold deps ~init:[] ~f:(fun fn acc -> wait_for_file t fn ~targeting :: acc))
     >>= fun () ->
-    Build_interpret.exec t build () ~targeting
+    Build_exec.exec t build () ~targeting
   ) in
   let rule =
     { Rule.
diff --git a/src/gen_rules.ml b/src/gen_rules.ml
index 8ec31393..d936c680 100644
--- a/src/gen_rules.ml
+++ b/src/gen_rules.ml
@@ -1466,6 +1466,19 @@ module Gen(P : Params) = struct
      | Installation                                                    |
      +-----------------------------------------------------------------+ *)
 
+  let known_targets_by_dir_so_far =
+    List.fold_left !all_rules ~init:Path.Map.empty ~f:(fun acc rule ->
+      List.fold_left (Build_interpret.targets rule) ~init:acc ~f:(fun acc target ->
+        let path = Build_interpret.Target.path target in
+        let dir = Path.parent path in
+        let fn = Path.basename path in
+        let files =
+          match Path.Map.find dir acc with
+          | None -> String_set.singleton fn
+          | Some set -> String_set.add fn set
+        in
+        Path.Map.add acc ~key:dir ~data:files))
+
   let lib_install_files ~dir (lib : Library.t) =
     let byte   = List.mem Mode.Byte   ~set:lib.modes in
     let native = List.mem Mode.Native ~set:lib.modes in
@@ -1526,8 +1539,9 @@ module Gen(P : Params) = struct
       ])
     |> List.map ~f:(Install.Entry.make Lib)
 
-  let odig_doc_file_re =
-    Re.(compile (alt [str "README"; str "LICENSE"; str "CHANGE"; str "HISTORY"]))
+  let is_odig_doc_file fn =
+    List.exists [ "README"; "LICENSE"; "CHANGE"; "HISTORY"]
+      ~f:(fun prefix -> String.is_prefix fn ~prefix)
 
   let install_file package =
     let entries =
@@ -1550,9 +1564,14 @@ module Gen(P : Params) = struct
     in
     let entries =
       let root_listing = File_tree.Dir.files (File_tree.root P.file_tree) in
-      String_set.fold root_listing ~init:entries ~f:(fun fn acc ->
-        if Re.execp odig_doc_file_re fn then
-          Install.Entry.make Doc (Path.relative Path.root fn) :: acc
+      let root_targets =
+        match Path.Map.find ctx.build_dir known_targets_by_dir_so_far with
+        | None -> root_listing
+        | Some set -> String_set.union root_listing set
+      in
+      String_set.fold root_targets ~init:entries ~f:(fun fn acc ->
+        if is_odig_doc_file fn then
+          Install.Entry.make Doc (Path.relative ctx.build_dir fn) :: acc
         else
           acc)
     in