New release.

NEWS

+Version 2.5.2:
+ - ensured compatibility from Coq 8.4 to 8.6
+
 Version 2.5.1:
  - ensured compatibility with both Coq 8.4 and 8.5
 

Remakefile.in

@@ -109,6 +109,7 @@ dist: $(EXTRA_DIST)
 	for f in $(REMOVE_FROM_DIST) ; do rm -rf $PACK/$f; done
 	git log --pretty="format:%ad %s" --date=short > $PACK/ChangeLog
 	cat /dev/null > $PACK/ChangeLog
+	rm $PACK/.mailmap
 	rm `find $PACK -name .gitignore`
 	tar czf $PACK.tar.gz $PACK
 	rm -rf $PACK

configure.in

-AC_INIT([Flocq], [2.5.1],
+AC_INIT([Flocq], [2.5.2],
         [Sylvie Boldo <sylvie.boldo@inria.fr>, Guillaume Melquiond <guillaume.melquiond@inria.fr>],
         [flocq])
 

src/Core/Fcore_ulp.v

@@ -35,6 +35,7 @@ Variable fexp : Z -> Z.
 (** Definition and basic properties about the minimal exponent, when it exists *)
 
 Lemma Z_le_dec_aux: forall x y : Z, (x <= y)%Z \/ ~ (x <= y)%Z.
+Proof.
 intros.
 destruct (Z_le_dec x y).
 now left.