From fb1b438ca1cdb206a1ad35d285e6fa8ea615d047 Mon Sep 17 00:00:00 2001
From: puech
Date: Fri, 29 Jul 2011 14:26:18 +0000
Subject: Unify: generic equality on constr replaced by eq_constr

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14334 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 plugins/firstorder/unify.ml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'plugins/firstorder')

diff --git a/plugins/firstorder/unify.ml b/plugins/firstorder/unify.ml
index 6c82a9685a..299a0054a2 100644
--- a/plugins/firstorder/unify.ml
+++ b/plugins/firstorder/unify.ml
@@ -89,9 +89,8 @@ let unif t1 t2=
 let value i t=
   let add x y=
     if x<0 then y else if y<0 then x else x+y in
-  let tref=mkMeta i in
   let rec vaux term=
-    if term=tref then 0 else
+    if isMeta term && destMeta term = i then 0 else
       let f v t=add v (vaux t) in
       let vr=fold_constr f (-1) term in
 	if vr<0 then -1 else vr+1 in
-- 
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