From 376da97be60957b25e59afb5791fae665127b17b Mon Sep 17 00:00:00 2001
From: Guillaume Melquiond <guillaume.melquiond@inria.fr>
Date: Tue, 22 Nov 2016 17:48:14 +0100
Subject: Remove options deprecated since 8.4.

---
 pretyping/unification.ml | 13 +------------
 vernac/indschemes.ml     |  7 -------
 vernac/vernacentries.ml  | 11 -----------
 3 files changed, 1 insertion(+), 30 deletions(-)

diff --git a/pretyping/unification.ml b/pretyping/unification.ml
index ef4f7f754..b4964c1f3 100644
--- a/pretyping/unification.ml
+++ b/pretyping/unification.ml
@@ -248,20 +248,9 @@ let sort_eqns = unify_r2l
 
 let global_pattern_unification_flag = ref true
 
-(* Compatibility option introduced and activated in Coq 8.3 whose
-   syntax is now deprecated. *)
-
 open Goptions
-let _ =
-  declare_bool_option
-    { optdepr  = true;
-      optname  = "pattern-unification for existential variables in tactics";
-      optkey   = ["Tactic";"Evars";"Pattern";"Unification"];
-      optread  = (fun () -> !global_pattern_unification_flag);
-      optwrite = (:=) global_pattern_unification_flag }
 
-(* Compatibility option superseding the previous one, introduced and
-   activated in Coq 8.4 *)
+(* Compatibility option introduced and activated in Coq 8.4 *)
 
 let _ =
   declare_bool_option
diff --git a/vernac/indschemes.ml b/vernac/indschemes.ml
index e90c25926..44d6f37cc 100644
--- a/vernac/indschemes.ml
+++ b/vernac/indschemes.ml
@@ -84,13 +84,6 @@ let _ =
       optkey   = ["Boolean";"Equality";"Schemes"];
       optread  = (fun () -> !eq_flag) ;
       optwrite = (fun b -> eq_flag := b) }
-let _ = (* compatibility *)
-  declare_bool_option
-    { optdepr  = true;
-      optname  = "automatic declaration of boolean equality";
-      optkey   = ["Equality";"Scheme"];
-      optread  = (fun () -> !eq_flag) ;
-      optwrite = (fun b -> eq_flag := b) }
 
 let is_eq_flag () = !eq_flag
 
diff --git a/vernac/vernacentries.ml b/vernac/vernacentries.ml
index ef16df5b7..9978848ff 100644
--- a/vernac/vernacentries.ml
+++ b/vernac/vernacentries.ml
@@ -1394,17 +1394,6 @@ let _ =
       optread  = (fun () -> !CClosure.share);
       optwrite = (fun b -> CClosure.share := b) }
 
-(* No more undo limit in the new proof engine.
-   The command still exists for compatibility (e.g. with ProofGeneral) *)
-
-let _ =
-  declare_int_option
-    { optdepr  = true;
-      optname  = "the undo limit (OBSOLETE)";
-      optkey   = ["Undo"];
-      optread  = (fun _ -> None);
-      optwrite = (fun _ -> ()) }
-
 let _ =
   declare_bool_option
     { optdepr  = false;
-- 
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