From 97fefe1fcca363a1317e066e7f4b99b9c1e9987b Mon Sep 17 00:00:00 2001
From: Stephane Glondu <steph@glondu.net>
Date: Thu, 12 Jan 2012 16:02:20 +0100
Subject: Imported Upstream version 8.4~beta

---
 tactics/eqdecide.ml4 | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

(limited to 'tactics/eqdecide.ml4')

diff --git a/tactics/eqdecide.ml4 b/tactics/eqdecide.ml4
index a16e99bb..6d40b2da 100644
--- a/tactics/eqdecide.ml4
+++ b/tactics/eqdecide.ml4
@@ -1,6 +1,6 @@
 (************************************************************************)
 (*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
-(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011     *)
+(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010     *)
 (*   \VV/  **************************************************************)
 (*    //   *      This file is distributed under the terms of the       *)
 (*         *       GNU Lesser General Public License Version 2.1        *)
@@ -14,8 +14,6 @@
 
 (*i camlp4deps: "parsing/grammar.cma" i*)
 
-(* $Id: eqdecide.ml4 14641 2011-11-06 11:59:10Z herbelin $ *)
-
 open Util
 open Names
 open Namegen
@@ -29,7 +27,6 @@ open Auto
 open Pattern
 open Matching
 open Hipattern
-open Proof_trees
 open Proof_type
 open Tacmach
 open Coqlib
@@ -163,8 +160,7 @@ let decideGralEquality g =
 
 let decideEqualityGoal = tclTHEN intros decideGralEquality
 
-let decideEquality c1 c2 g =
-  let rectype = (pf_type_of g c1) in
+let decideEquality rectype g =
   let decide  = mkGenDecideEqGoal rectype g in
   (tclTHENS (cut decide) [default_auto;decideEqualityGoal]) g
 
@@ -178,13 +174,12 @@ let compare c1 c2 g =
             [(tclTHEN  intro
              (tclTHEN (onLastHyp simplest_case)
                        clear_last));
-             decideEquality c1 c2]) g
+             decideEquality (pf_type_of g c1)]) g
 
 
 (* User syntax *)
 
 TACTIC EXTEND decide_equality
-  [ "decide" "equality" constr(c1) constr(c2) ] -> [ decideEquality c1 c2 ]
 | [ "decide" "equality" ] -> [ decideEqualityGoal ]
 END
 
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