Subject: bug#75328: 31.0.50; use-package cannot override a built in package

From: Eli Zaretskii <[email-masked]>
Date: Sat, 04 Jan 2025 20:21:50 +0200

> From: "Mark A. Hershberger" <[email-masked]>
> Cc: [email-masked]
> Date: Sat, 04 Jan 2025 10:50:21 -0500
> 
> Eli Zaretskii <[email-masked]> writes:
> 
> > Did you try customizing package-install-upgrade-built-in?
> 
> Yes.  I also reported this to Jonas[1] and in the following discussion
> he suggested that and I tried it[2].
> 
> The following does not check out the transient repository into
> ~/.emacs.d/elpa/:
> 
>     rm -rf ~/.emacs.d &&
>     echo '(setq package-install-upgrade-built-in t)
>     (use-package transient :vc (:url "https://github.com/magit/transient" :rev :newest) :ensure t)' > ~/.emacs &&
>     ~/bin/emacs

Philip, shouldn't package-install-upgrade-built-in allow upgrading a
built-in package via use--package's :vc keyword?