bug#65023: 29.1.50; Tramp 2.6.1.1 cannot be installed as ELPA package

[Jim Porter <jporterbugs@gmail.com>]

On 8/5/2023 2:19 AM, Michael Albinus wrote:
> What could we do? Is it possible to release a small temporary ELPA
> package which fixes the problem for Emacs 29.1, and Tramp pckages could
> depend on?
> 
> Or is it possible to publish a use-package recipe for Tramp ELPA
> packages?

I'm not sure if it's a good idea or not, but the following advice seems 
to fix things in Emacs 29.1 for me:

   (advice-add #'loaddefs-generate--parse-file :around
               (lambda (fn file main-outfile package-data)
                 (funcall fn file main-outfile (or package-data t)))

This makes the 'package-data' argument never be nil, which avoids 
running the broken code. I'd be a little worried about publishing this 
without further testing, but hopefully it (or something like it) could 
be a solution until 29.2 is released...