* emacs-lisp/byte-run.el (advertised-signature-table): New var.

(set-advertised-calling-convention): New function.
(make-obsolete, define-obsolete-function-alias)
(make-obsolete-variable, define-obsolete-variable-alias):
Make the optional-ness of `when' obsolete.
(define-obsolete-face-alias): Make `when' non-optional.
* help-fns.el (help-function-arglist):
* emacs-lisp/bytecomp.el (byte-compile-fdefinition):
Use advertised-signature-table.

1 files changed, 2 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 9003f42ee96..1f39f8171e0 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -246,6 +246,8 @@ Command*'.
 
 * Lisp changes in Emacs 23.2
 
+** New function set-advertised-calling-convention makes it possible
+to obsolete arguments as well as make some arguments mandatory.
 ** eval-next-after-load is obsolete.
 ** New hook `after-load-functions' run after loading an Elisp file.