Make some variable aliases obsolete

* lisp/progmodes/make-mode.el (makefile-query-one-target-method):
* lisp/skeleton.el (skeleton-transformation, skeleton-filter):
* lisp/textmodes/artist.el (artist-text-renderer):
* lisp/textmodes/bibtex.el (bibtex-autokey-name-case-convert):
(bibtex-autokey-titleword-case-convert):
* lisp/textmodes/ispell.el (ispell-format-word):
* lisp/textmodes/sgml-mode.el (sgml-transformation):
* lisp/vc/add-log.el (change-log-time-zone-rule): Make variable
aliases obsolete.

lisp/progmodes/make-mode.el

@@ -542,8 +542,8 @@ not be enclosed in { } or ( )."
 This should identify a `make' command that can handle the `-q' option."
   :type 'string)
 
-(defvaralias 'makefile-query-one-target-method
-  'makefile-query-one-target-method-function)
+(define-obsolete-variable-alias 'makefile-query-one-target-method
+  'makefile-query-one-target-method-function "29.1")
 
 (defcustom makefile-query-one-target-method-function
   'makefile-query-by-make-minus-q

lisp/skeleton.el

@@ -37,7 +37,8 @@
 ;; page 2:	paired insertion
 ;; page 3:	mirror-mode, an example for setting up paired insertion
 
-(defvaralias 'skeleton-transformation 'skeleton-transformation-function)
+(define-obsolete-variable-alias 'skeleton-transformation
+  'skeleton-transformation-function "29.1")
 
 (defvar skeleton-transformation-function 'identity
   "If non-nil, function applied to literal strings before they are inserted.
@@ -65,7 +66,8 @@ region.")
   "Hook called at end of skeleton but before going to point of interest.
 The variables `v1' and `v2' are still set when calling this.")
 
-(defvaralias 'skeleton-filter 'skeleton-filter-function)
+(define-obsolete-variable-alias 'skeleton-filter
+  'skeleton-filter-function "29.1")
 
 ;;;###autoload
 (defvar skeleton-filter-function 'identity

lisp/textmodes/artist.el

@@ -338,7 +338,8 @@ Example:
 (defvar artist-pointer-shape (if (eq window-system 'x) x-pointer-crosshair nil)
   "If in X Windows, use this pointer shape while drawing with the mouse.")
 
-(defvaralias 'artist-text-renderer 'artist-text-renderer-function)
+(define-obsolete-variable-alias 'artist-text-renderer
+  'artist-text-renderer-function "29.1")
 
 (defcustom artist-text-renderer-function 'artist-figlet
   "Function for doing text rendering."

lisp/textmodes/bibtex.el

@@ -1211,8 +1211,8 @@ See `bibtex-generate-autokey' for details."
   :type '(repeat (cons (regexp :tag "Old")
                        (string :tag "New"))))
 
-(defvaralias 'bibtex-autokey-name-case-convert
-  'bibtex-autokey-name-case-convert-function)
+(define-obsolete-variable-alias 'bibtex-autokey-name-case-convert
+  'bibtex-autokey-name-case-convert-function "29.1")
 
 (defcustom bibtex-autokey-name-case-convert-function #'downcase
   "Function called for each name to perform case conversion.
@@ -1286,8 +1286,8 @@ Case is significant.  See `bibtex-generate-autokey' for details."
   :group 'bibtex-autokey
   :type '(repeat regexp))
 
-(defvaralias 'bibtex-autokey-titleword-case-convert
-  'bibtex-autokey-titleword-case-convert-function)
+(define-obsolete-variable-alias 'bibtex-autokey-titleword-case-convert
+  'bibtex-autokey-titleword-case-convert-function "29.1")
 
 (defcustom bibtex-autokey-titleword-case-convert-function #'downcase
   "Function called for each titleword to perform case conversion.

lisp/textmodes/ispell.el

@@ -296,7 +296,8 @@ The following values are supported:
   "Non-nil means suppress messages in `ispell-word'."
   :type 'boolean)
 
-(defvaralias 'ispell-format-word 'ispell-format-word-function)
+(define-obsolete-variable-alias 'ispell-format-word
+  'ispell-format-word-function "29.1")
 
 (defcustom ispell-format-word-function (function upcase)
   "Formatting function for displaying word being spell checked.

lisp/textmodes/sgml-mode.el

@@ -75,7 +75,8 @@ a DOCTYPE or an XML declaration."
   :type 'boolean
   :version "22.1")
 
-(defvaralias 'sgml-transformation 'sgml-transformation-function)
+(define-obsolete-variable-alias 'sgml-transformation
+  'sgml-transformation-function "29.1")
 
 (defcustom sgml-transformation-function 'identity
   "Default value for `skeleton-transformation-function' in SGML mode."

lisp/vc/add-log.el

@@ -590,9 +590,8 @@ Compatibility function for \\[next-error] invocations."
     ["Go To Source" change-log-goto-source
      :help "Go to source location of ChangeLog tag near point"]))
 
-;; It used to be called change-log-time-zone-rule but really should be
-;; called add-log-time-zone-rule since it's only used from add-log-* code.
-(defvaralias 'change-log-time-zone-rule 'add-log-time-zone-rule)
+(define-obsolete-variable-alias 'change-log-time-zone-rule
+  'add-log-time-zone-rule "29.1")
 (defvar add-log-time-zone-rule nil
   "Time zone rule used for calculating change log time stamps.
 If nil, use local time.  If t, use Universal Time.