Emacs says Symbol's function definition is void: setopt after updated to the latest version

[maptile]

After updated to the latest version of .emacs.d, an error shows when start up.

Debugger entered--Lisp error: (void-function setopt)
  (setopt use-short-answers t)
  (progn (setopt use-short-answers t))
  (if (boundp 'use-short-answers) (progn (setopt use-short-answers t)))
  load-with-code-conversion("/home/cat/.emacs.d/lisp/init-misc.el" "/home/cat/.emacs.d/lisp/init-misc.el" nil t)
  #<subr require>(init-misc)
  apply(#<subr require> init-misc nil)
  (prog1 (apply orig feature args) (if (and (not already-loaded) (memq feature features)) (progn (let ((time (sanityinc/time-subtract-millis (current-time) require-start-time))) (add-to-list 'sanityinc/require-times (list feature require-start-time time) t)))))
  (let* ((already-loaded (memq feature features)) (require-start-time (and (not already-loaded) (current-time)))) (prog1 (apply orig feature args) (if (and (not already-loaded) (memq feature features)) (progn (let ((time (sanityinc/time-subtract-millis ... require-start-time))) (add-to-list 'sanityinc/require-times (list feature require-start-time time) t))))))
  sanityinc/require-times-wrapper(#<subr require> init-misc)
  apply(sanityinc/require-times-wrapper #<subr require> init-misc)
  require(init-misc)
  load-with-code-conversion("/home/cat/.emacs.d/init.el" "/home/cat/.emacs.d/init.el" t t)
  load("/home/cat/.emacs.d/init" noerror nomessage)
  startup--load-user-init-file(#f(compiled-function () #<bytecode 0x1409951b17b9bac2>) #f(compiled-function () #<bytecode -0x1f3c686ddc0cdc35>) t)
  command-line()
  normal-top-level()

It seems this error introduced in use-short-answers commit.

Emacs version: 28.2 Platform: Ubuntu 23.04 Gnome Wayland

[maptile]

It seems the 'setopt' command was introduced in Emacs 29. That may be the reason of why it shows an error in Emacs 28

[purcell]

Good catch, thanks — I was a bit surprised this didn't show up in CI...

[maptile]

Thanks. After updated, the problem goes away. XD