Kévin Le Gouguec writes: > Huh. Based on the discussion for bug#37774[1][2][3][4], I had assumed > this kind of kludge would be necessary, but both Emacs 25.3 and 26.3 > seem to evaluate and byte-compile the following snippet with no errors: > > #+begin_src elisp > (defface foobar '((t (:extend t))) > "Test extend in 26.3" > :group 'org-faces) > > (custom-set-faces > '(foobar ((t (:extend nil))) t)) > #+end_src > > Obviously I'm all for removing this shim if it's not needed. From some > light testing it looks like removing it breaks the customization widget, > though?
Ah, good point. I didn't think to check that in my testing, and indeed it looks broken. Okay, let's go with `((t :inherit shadow ,@(and (>= emacs-major-version 27) '(:extend t)))) as the org-block spec then. Thanks.
