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/NArith/Ndiv_def.v b/theories/NArith/Ndiv_def.v
index 559f01f16..21f15f976 100644
--- a/theories/NArith/Ndiv_def.v
+++ b/theories/NArith/Ndiv_def.v
@@ -22,10 +22,10 @@ Lemma Pdiv_eucl_remainder a b :
   snd (Pdiv_eucl a b) < Npos b.
 Proof. now apply (N.pos_div_eucl_remainder a (Npos b)). Qed.
 
-Notation Ndiv_eucl := N.div_eucl (only parsing).
-Notation Ndiv := N.div (only parsing).
-Notation Nmod := N.modulo (only parsing).
+Notation Ndiv_eucl := N.div_eucl (compat "8.3").
+Notation Ndiv := N.div (compat "8.3").
+Notation Nmod := N.modulo (compat "8.3").
 
-Notation Ndiv_eucl_correct := N.div_eucl_spec (only parsing).
-Notation Ndiv_mod_eq := N.div_mod' (only parsing).
-Notation Nmod_lt := N.mod_lt (only parsing).
+Notation Ndiv_eucl_correct := N.div_eucl_spec (compat "8.3").
+Notation Ndiv_mod_eq := N.div_mod' (compat "8.3").
+Notation Nmod_lt := N.mod_lt (compat "8.3").