From 97fefe1fcca363a1317e066e7f4b99b9c1e9987b Mon Sep 17 00:00:00 2001
From: Stephane Glondu <steph@glondu.net>
Date: Thu, 12 Jan 2012 16:02:20 +0100
Subject: Imported Upstream version 8.4~beta

---
 library/states.ml | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'library/states.ml')

diff --git a/library/states.ml b/library/states.ml
index 679f9028..c88858f7 100644
--- a/library/states.ml
+++ b/library/states.ml
@@ -1,13 +1,11 @@
 (************************************************************************)
 (*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
-(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011     *)
+(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010     *)
 (*   \VV/  **************************************************************)
 (*    //   *      This file is distributed under the terms of the       *)
 (*         *       GNU Lesser General Public License Version 2.1        *)
 (************************************************************************)
 
-(* $Id: states.ml 14641 2011-11-06 11:59:10Z herbelin $ *)
-
 open System
 
 type state = Lib.frozen * Summary.frozen
@@ -22,7 +20,10 @@ let unfreeze (fl,fs) =
 let (extern_state,intern_state) =
   let (raw_extern, raw_intern) =
     extern_intern Coq_config.state_magic_number ".coq" in
-  (fun s -> raw_extern s (freeze())),
+  (fun s ->
+    if !Flags.load_proofs <> Flags.Force then
+      Util.error "Write State only works with option -force-load-proofs";
+    raw_extern s (freeze())),
   (fun s ->
     unfreeze
       (with_magic_number_check (raw_intern (Library.get_load_paths ())) s);
-- 
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