From cae62c87e2a361aeb31d3382280e5d7f18126e92 Mon Sep 17 00:00:00 2001
From: barras
Date: Thu, 12 Jul 2007 17:15:22 +0000
Subject: normalisation (by closure) was not performed under fixpoints

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9983 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 kernel/closure.ml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'kernel')

diff --git a/kernel/closure.ml b/kernel/closure.ml
index 364475019f..01d31441d6 100644
--- a/kernel/closure.ml
+++ b/kernel/closure.ml
@@ -980,7 +980,7 @@ and knht e t stk =
 
 (************************************************************************)
 
-(* Computes a normal form from the result of knh. *)
+(* Computes a weak head normal form from the result of knh. *)
 let rec knr info m stk =
   match m.term with
   | FLambda(n,tys,f,e) when red_set info.i_flags fBETA ->
@@ -1082,6 +1082,11 @@ and norm_head info m =
           let fbds =
             Array.map (mk_clos (subs_liftn (Array.length na) e)) bds in
           mkCoFix(n,(na, Array.map (kl info) ftys, Array.map (kl info) fbds))
+      | FFix((n,(na,tys,bds)),e) ->
+          let ftys = Array.map (mk_clos e) tys in
+          let fbds =
+            Array.map (mk_clos (subs_liftn (Array.length na) e)) bds in
+          mkFix(n,(na, Array.map (kl info) ftys, Array.map (kl info) fbds))
       | FEvar(i,args) -> mkEvar(i, Array.map (kl info) args)
       | t -> term_of_fconstr m
 
-- 
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