Deprecate #'remassoc, #'remassq, #'remrassoc, #'remrassq. src/ChangeLog addition: 2011-10-09 Aidan Kehoe <kehoea@parhasard.net> * fns.c (remassoc_no_quit): * fns.c (remrassq_no_quit): * fns.c (syms_of_fns): * fontcolor-tty.c (Fregister_tty_color): * fontcolor-tty.c (Funregister_tty_color): * fontcolor-tty.c (Ffind_tty_color): * lisp.h: Remove Fremassq, Fremrassq, Fremassoc, Fremrassoc, they're XEmacs-specific functions and Lisp callers should use (delete* ... :key #'car) anyway. Keep the non-Lisp-visible _no_quit versions, calling FdeleteX from C with the appropriate arguments is ungainly. lisp/ChangeLog addition: 2011-10-09 Aidan Kehoe <kehoea@parhasard.net> * obsolete.el: * obsolete.el (assq-delete-all): * packages.el (package-provide): * packages.el (package-suppress): * mule/cyrillic.el ("Cyrillic-KOI8"): * mule/cyrillic.el (koi8-u): * mule/general-late.el (posix-charset-to-coding-system-hash): * mule/latin.el: * mule/latin.el (for): * cl-extra.el: * cl-extra.el (cl-extra): * loadup.el (load-history): Change any uses of #'remassq, #'remassoc and friends to calling #'delete* with an appropriate key argument. Provide compatibility implementations, mark them obsolete. man/ChangeLog addition: 2011-10-09 Aidan Kehoe <kehoea@parhasard.net> * lispref/lists.texi (Association Lists): Don't document #'remassoc, #'remassq and friends in detail; they're XEmacs-specific and (delete* ... :key #'car) is preferable.

--- a/lisp/obsolete.el	Sun Oct 09 10:39:09 2011 +0100
+++ b/lisp/obsolete.el	Sun Oct 09 12:55:51 2011 +0100
@@ -263,8 +263,8 @@
 
 (define-compatible-function-alias 'interactive-form 
   'function-interactive) ;GNU 21.1
-(define-compatible-function-alias 'assq-delete-all
-  'remassq) ;GNU 21.1
+(define-function 'assq-delete-all 'remassq) ;GNU 21.1
+(make-compatible 'assq-delete-all "use (delete* ITEM SEQUENCE :key #'car)")
 
 (defun makehash (&optional test)
   "Create a new hash table.
@@ -452,5 +452,15 @@
 (define-obsolete-variable-alias 'cl-macro-environment
   'byte-compile-macro-environment)
 
+;; Actual implementations of these functions are in cl-extra.el, after
+;; cl-macs is loaded, since those implementations use #'labels and
+;; #'symbol-macrolet. These APIs were always XEmacs-specific, were never
+;; widely used, and it was always more readable and more compatible to use
+;; the CL functions.
+(make-obsolete 'remassoc "use delete* with :test #'equal, :key #'car")
+(make-obsolete 'remassq "use delete* with :test #'eq, :key #'car")
+(make-obsolete 'remrassoc "use delete* with :test #'equal, :key #'cdr")
+(make-obsolete 'remrassq "use delete* with :test #'eq, :key #'cdr")
+
 (provide 'obsolete)
 ;;; obsolete.el ends here