(************************************************************************)
(*         *   The Coq Proof Assistant / The Coq Development Team       *)
(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
(* <O___,, *       (see CREDITS file for the list of authors)           *)
(*   \VV/  **************************************************************)
(*    //   *    This file is distributed under the terms of the         *)
(*         *     GNU Lesser General Public License Version 2.1          *)
(*         *     (see LICENSE file for the text of the license)         *)
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(** Compatibility file for making Coq act similar to Coq v8.5 *)

(** Any compatibility changes to make future versions of Coq behave like Coq 8.6
    are likely needed to make them behave like Coq 8.5. *)
Require Export Coq.Compat.Coq86.

(** We use some deprecated options in this file, so we disable the
    corresponding warning, to silence the build of this file. *)
Local Set Warnings "-deprecated-option".

(* In 8.5, "intros [|]", taken e.g. on a goal "A\/B->C", does not
   behave as "intros [H|H]" but leave instead hypotheses quantified in
   the goal, here producing subgoals A->C and B->C. *)

Global Unset Bracketing Last Introduction Pattern.
Global Unset Regular Subst Tactic.
Global Unset Structural Injection.
Global Unset Shrink Abstract.
Global Unset Shrink Obligations.
Global Set Refolding Reduction.

(** The resolution algorithm for type classes has changed. *)
Global Set Typeclasses Legacy Resolution.
Global Set Typeclasses Limit Intros.
Global Unset Typeclasses Filtered Unification.

(** Allow silently letting unification constraints float after a "." *)
Global Unset Solve Unification Constraints.