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diff --git a/tactics/g_class.ml4 b/tactics/g_class.ml4
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-(************************************************************************)
-(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
-(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016     *)
-(*   \VV/  **************************************************************)
-(*    //   *      This file is distributed under the terms of the       *)
-(*         *       GNU Lesser General Public License Version 2.1        *)
-(************************************************************************)
-
-(*i camlp4deps: "grammar/grammar.cma" i*)
-
-open Misctypes
-open Class_tactics
-
-DECLARE PLUGIN "g_class"
-
-TACTIC EXTEND progress_evars
-  [ "progress_evars" tactic(t) ] -> [ progress_evars (Tacinterp.eval_tactic t) ]
-END
-
-(** Options: depth, debug and transparency settings. *)
-
-let set_transparency cl b =
-  List.iter (fun r ->
-    let gr = Smartlocate.global_with_alias r in
-    let ev = Tacred.evaluable_of_global_reference (Global.env ()) gr in
-      Classes.set_typeclass_transparency ev false b) cl
-
-VERNAC COMMAND EXTEND Typeclasses_Unfold_Settings CLASSIFIED AS SIDEFF
-| [ "Typeclasses" "Transparent" reference_list(cl) ] -> [
-    set_transparency cl true ]
-END
-
-VERNAC COMMAND EXTEND Typeclasses_Rigid_Settings CLASSIFIED AS SIDEFF
-| [ "Typeclasses" "Opaque" reference_list(cl) ] -> [
-    set_transparency cl false ]
-END
-
-open Genarg
-
-let pr_debug _prc _prlc _prt b =
-  if b then Pp.str "debug" else Pp.mt()
-
-ARGUMENT EXTEND debug TYPED AS bool PRINTED BY pr_debug
-| [ "debug" ] -> [ true ]
-| [ ] -> [ false ]
-END
-
-let pr_depth _prc _prlc _prt = function
-    Some i -> Pp.int i
-  | None -> Pp.mt()
-
-ARGUMENT EXTEND depth TYPED AS int option PRINTED BY pr_depth
-| [ int_or_var_opt(v) ] -> [ match v with Some (ArgArg i) -> Some i | _ -> None ]
-END
-
-(* true = All transparent, false = Opaque if possible *)
-
-VERNAC COMMAND EXTEND Typeclasses_Settings CLASSIFIED AS SIDEFF
- | [ "Typeclasses" "eauto" ":=" debug(d) depth(depth) ] -> [
-     set_typeclasses_debug d;
-     set_typeclasses_depth depth
-   ]
-END
-
-TACTIC EXTEND typeclasses_eauto
-| [ "typeclasses" "eauto" "with" ne_preident_list(l) ] -> [ Proofview.V82.tactic (typeclasses_eauto l) ]
-| [ "typeclasses" "eauto" ] -> [ Proofview.V82.tactic (typeclasses_eauto ~only_classes:true [Hints.typeclasses_db]) ]
-END
-
-TACTIC EXTEND head_of_constr
-  [ "head_of_constr" ident(h) constr(c) ] -> [ head_of_constr h c ]
-END
-
-TACTIC EXTEND not_evar
-  [ "not_evar" constr(ty) ] -> [ not_evar ty ]
-END
-
-TACTIC EXTEND is_ground
-  [ "is_ground" constr(ty) ] -> [ Proofview.V82.tactic (is_ground ty) ]
-END
-
-TACTIC EXTEND autoapply
-  [ "autoapply" constr(c) "using" preident(i) ] -> [ Proofview.V82.tactic (autoapply c i) ]
-END