vertico--setup: Symbol’s function definition is void: set-local

[mooseyboots]

hi dm,

after updating, vertico is broken with this error.

i saw #668 and prev discussion. i use use-package/straight.el, have nuked all vertico-related packages then restarted emacs. (locate-libary "compat") gives /path/to/straight/build/compat/compat.elc. i'm on emacs 31.0.50.

is there a specific way i can check if compat is installed/loaded right?

edit: perhaps it is that if the straight.el version isn't found at the right time, the fallback to the built-in means set-local isn't being found?

i tried adding compat to my init like so, to no avail:

(use-package compat
  :ensure t
 :straight (compat :host github :repo "emacs-compat/compat"))

(use-package vertico
  :ensure t
  :init (vertico-mode)
  :bind (:map minibuffer-local-map
              ("<next>" . vertico-next-group)
              ("<prior>" . vertico-previous-group)))

[minad]

Most likely your Emacs is outdated, 31.0.50 without set-local. Pull and recompile Emacs and it will be fine.

[mooseyboots]

isn't that why i need compat?

[minad]

No, Compat is there for Emacs 30, 29, and older. Compat relies on a well-defined Emacs release, but you are running Emacs 31.something. It could be anything, and Compat cannot cater for such intermediate development versions. If you recompile a new Emacs 31 version, every definition from Emacs 31 will be there, which has been backported to Compat.

[mooseyboots]

TIL, thanks for elaborating. despite my question earlier i went ahead and recompiled ye olde emacs, which is always a joy because it never breaks, as the venerable beast has been built by so many before me. can confirm i'm happily having no more compat issues, thanks.