From 2a79abc613bdf19b53685a40c993f964455904fe Mon Sep 17 00:00:00 2001
From: Pierre-Marie Pédrot
Date: Thu, 14 Mar 2019 19:00:34 +0100
Subject: No more local reduction functions in Reductionops.

This is extracted from #9710, where we need the environment anyway to compute
iota rules on inductive types with let-bindings. The commit is self-contained,
so I think it could go directly in to save me a few rebases.

Furthermore, this is also related to #11707. Assuming we split cbn from the
other reduction machine, this allows to merge the "local" machine with
the general one, since after this PR they will have the same type. One less
reduction machine should make people happy.
---
 pretyping/typeclasses.ml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'pretyping/typeclasses.ml')

diff --git a/pretyping/typeclasses.ml b/pretyping/typeclasses.ml
index afd6c33821..d1b65775bd 100644
--- a/pretyping/typeclasses.ml
+++ b/pretyping/typeclasses.ml
@@ -179,7 +179,7 @@ let build_subclasses ~check env sigma glob { hint_priority = pri } =
       | None -> []
       | Some (rels, ((tc,u), args)) ->
         let instapp =
-          Reductionops.whd_beta sigma (EConstr.of_constr (appvectc c (Context.Rel.to_extended_vect mkRel 0 rels)))
+          Reductionops.whd_beta env sigma (EConstr.of_constr (appvectc c (Context.Rel.to_extended_vect mkRel 0 rels)))
         in
         let instapp = EConstr.Unsafe.to_constr instapp in
         let projargs = Array.of_list (args @ [instapp]) in
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