From c6506c9276a9c38557d523224148fe2b9d98dafa Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Sun, 13 Oct 2019 22:51:29 +0200
Subject: Fix #9851: anomaly when unsolved evar in Add Ring

AFAICT there is no reason to use interp_open_constr

I used Evd.from_ctx to keep passing evar maps around but maybe we
should be passing ustates instead?
---
 plugins/setoid_ring/newring.ml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'plugins')

diff --git a/plugins/setoid_ring/newring.ml b/plugins/setoid_ring/newring.ml
index 76c393450b..e3e787df2c 100644
--- a/plugins/setoid_ring/newring.ml
+++ b/plugins/setoid_ring/newring.ml
@@ -139,8 +139,8 @@ let _ = add_tacdef false ((Loc.ghost,Id.of_string"ring_closed_term"
 let ic c =
   let env = Global.env() in
   let sigma = Evd.from_env env in
-  let sigma, c = Constrintern.interp_open_constr env sigma c in
-  (sigma, c)
+  let c, uctx = Constrintern.interp_constr env sigma c in
+  (Evd.from_ctx uctx, c)
 
 let ic_unsafe c = (*FIXME remove *)
   let env = Global.env() in
-- 
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