From aecc008e57ca056552c8bbb156d2b45b70575c1d Mon Sep 17 00:00:00 2001
From: msozeau
Date: Wed, 18 Jun 2008 15:14:05 +0000
Subject: Fix bug in implementation of splitting of class constraints.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11141 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 tactics/class_tactics.ml4 | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'tactics')

diff --git a/tactics/class_tactics.ml4 b/tactics/class_tactics.ml4
index 9457403cc9..a353a4222f 100644
--- a/tactics/class_tactics.ml4
+++ b/tactics/class_tactics.ml4
@@ -450,7 +450,10 @@ let select_evars evs evm =
 let resolve_all_evars debug m env p oevd do_split fail =
   let oevm = Evd.evars_of oevd in
   let split = if do_split then split_evars (Evd.evars_of (Evd.undefined_evars oevd)) else [Intset.empty] in
-  let p = if do_split then fun comp ev evi -> Intset.mem ev comp && p ev evi else fun _ -> p in
+  let p = if do_split then 
+    fun comp ev evi -> (Intset.mem ev comp || not (Evd.mem oevm ev)) && p ev evi
+    else fun _ -> p 
+  in
   let rec aux n p evd =
     if has_undefined p oevm evd then
       if n > 0 then
-- 
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