Notation: a new annotation "compat 8.x" extending "only parsing"

 Suppose we declare : Notation foo := bar (compat "8.3").
 Then each time foo is used in a script :

 - By default nothing particular happens (for the moment)

 - But we could get a warning explaining that
   "foo is bar since coq > 8.3".
   For that, either use the command-line option -verb-compat-notations
   or the interactive command "Set Verbose Compat Notations".

 - There is also a strict mode, where foo is forbidden : the previous
   warning is now an error.
   For that, either use the command-line option -no-compat-notations
   or the interactive command "Unset Compat Notations".

 When Coq is launched in compatibility mode (via -compat 8.x),
 using a notation tagged "8.x" will never trigger a warning or error.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15514 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 6 insertions, 6 deletions

diff --git a/theories/ZArith/Zpow_def.v b/theories/ZArith/Zpow_def.v
index 6f1ebc061..4fe411584 100644
--- a/theories/ZArith/Zpow_def.v
+++ b/theories/ZArith/Zpow_def.v
@@ -14,12 +14,12 @@ Local Open Scope Z_scope.
 (** Nota : this file is mostly deprecated. The definition of [Z.pow]
     and its usual properties are now provided by module [BinInt.Z]. *)
 
-Notation Zpower_pos := Z.pow_pos (only parsing).
-Notation Zpower := Z.pow (only parsing).
-Notation Zpower_0_r := Z.pow_0_r (only parsing).
-Notation Zpower_succ_r := Z.pow_succ_r (only parsing).
-Notation Zpower_neg_r := Z.pow_neg_r (only parsing).
-Notation Zpower_Ppow := Z.pow_Zpos (only parsing).
+Notation Zpower_pos := Z.pow_pos (compat "8.3").
+Notation Zpower := Z.pow (compat "8.3").
+Notation Zpower_0_r := Z.pow_0_r (compat "8.3").
+Notation Zpower_succ_r := Z.pow_succ_r (compat "8.3").
+Notation Zpower_neg_r := Z.pow_neg_r (compat "8.3").
+Notation Zpower_Ppow := Z.pow_Zpos (compat "8.3").
 
 Lemma Zpower_theory : power_theory 1 Z.mul (@eq Z) Z.of_N Z.pow.
 Proof.