bug#62720: 29.0.60; Not easy at all to upgrade :core packages like Eglot

[João Távora]

On Wed, Apr 12, 2023 at 12:07 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > From: João Távora <joaotavora@gmail.com>
> > Cc: philipk@posteo.net,  monnier@iro.umontreal.ca,  62720@debbugs.gnu.org,
> >   larsi@gnus.org
> > Date: Wed, 12 Apr 2023 12:00:04 +0100
> >
> > Had another idea: what about this very tiny patch, then?  It makes `M-x
> > package-install` work for installing a :core package.  This also rhymes
> > exactly with Stefan's intution/feeling that :core packages need to be
> > "installed" to promote them to installable.  The current M-x
> > package-install recommendation could remain flawlessly and then you can
> > do whatever you think is best for M-x package-update & friends.
>
> This has the same problem: it modifies a function that is called in
> too many places.  package-installed-p has half a dozen callers in
> package.el alone.  The change is tiny, but what about its
> implications on every use case where it is involved?

What about them?  I volunteer to help test whichever cases you (or
anyone else) think may be problematic.

Can we put this tiny patch on master then?  Maybe there's half a
chance for a backport until the Emacs 29.1 release, or a quarter
of a chance that some future Emacs 29.2 will also get it.

João