From cd3971e53b76cb62e14822eb3e275d3968a4f215 Mon Sep 17 00:00:00 2001
From: Hugo Herbelin
Date: Mon, 15 May 2017 22:30:09 +0200
Subject: Adding support for using grammar entries returning no value in
 EXTEND.

---
 plugins/ltac/pptactic.mli | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'plugins/ltac/pptactic.mli')

diff --git a/plugins/ltac/pptactic.mli b/plugins/ltac/pptactic.mli
index 729338fb9a..433f342c4f 100644
--- a/plugins/ltac/pptactic.mli
+++ b/plugins/ltac/pptactic.mli
@@ -21,7 +21,7 @@ open Ppextend
 
 type 'a grammar_tactic_prod_item_expr =
 | TacTerm of string
-| TacNonTerm of Loc.t * 'a * Names.Id.t
+| TacNonTerm of Loc.t * 'a * Names.Id.t option
 
 type 'a raw_extra_genarg_printer =
     (constr_expr -> std_ppcmds) ->
-- 
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