4 files changed, 6 insertions, 6 deletions
diff --git a/gramlib/grammar.ml b/gramlib/grammar.ml
index f46ddffd6e..74350c4f15 100644
--- a/gramlib/grammar.ml
+++ b/gramlib/grammar.ml
@@ -15,7 +15,7 @@ module type S =
   sig
     type te
     type parsable
-    val parsable : char Stream.t -> parsable
+    val parsable : ?loc:Loc.t -> char Stream.t -> parsable
     val tokens : string -> (string * int) list
     module Entry :
       sig
@@ -1398,8 +1398,8 @@ let clear_entry e =
     Dlevels _ -> e.edesc <- Dlevels []
   | Dparser _ -> ()
 
-    let parsable cs =
-      let (ts, lf) = L.lexer.Plexing.tok_func cs in
+    let parsable ?loc cs =
+      let (ts, lf) = L.lexer.Plexing.tok_func ?loc cs in
       {pa_chr_strm = cs; pa_tok_strm = ts; pa_loc_func = lf}
     module Entry =
       struct
diff --git a/gramlib/grammar.mli b/gramlib/grammar.mli
index bde07ddc48..7cb7a92f85 100644
--- a/gramlib/grammar.mli
+++ b/gramlib/grammar.mli
@@ -23,7 +23,7 @@ module type S =
   sig
     type te
     type parsable
-    val parsable : char Stream.t -> parsable
+    val parsable : ?loc:Loc.t -> char Stream.t -> parsable
     val tokens : string -> (string * int) list
     module Entry :
       sig
diff --git a/gramlib/plexing.ml b/gramlib/plexing.ml
index fce5445ad8..c294923a85 100644
--- a/gramlib/plexing.ml
+++ b/gramlib/plexing.ml
@@ -5,7 +5,7 @@
 type pattern = string * string
 
 type location_function = int -> Loc.t
-type 'te lexer_func = char Stream.t -> 'te Stream.t * location_function
+type 'te lexer_func = ?loc:Loc.t -> char Stream.t -> 'te Stream.t * location_function
 
 type 'te lexer =
   { tok_func : 'te lexer_func;
diff --git a/gramlib/plexing.mli b/gramlib/plexing.mli
index 6139dc4020..f6e4d96b80 100644
--- a/gramlib/plexing.mli
+++ b/gramlib/plexing.mli
@@ -28,7 +28,7 @@ type 'te lexer =
     tok_match : pattern -> 'te -> string;
     tok_text : pattern -> string;
   }
-and 'te lexer_func = char Stream.t -> 'te Stream.t * location_function
+and 'te lexer_func = ?loc:Loc.t -> char Stream.t -> 'te Stream.t * location_function
 and location_function = int -> Loc.t
   (** The type of a function giving the location of a token in the
       source from the token number in the stream (starting from zero). *)