GNU bug report logs - #41732
Implement a wrapper so users can build the Emacs packages using a version of their choosing

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From: Nicolas Goaziou <mail <at> nicolasgoaziou.fr>
To: Fredrik Salomonsson <plattfot <at> gmail.com>
Cc: 41732 <at> debbugs.gnu.org
Subject: bug#41732: issue with emacs-lua-mode and emacs-next
Date: Sat, 06 Jun 2020 10:10:05 +0200

Hello,

Fredrik Salomonsson <plattfot <at> gmail.com> writes:

> When I launch emacs (emacs-next) with the emacs-lua-mode package, I'm
> getting this error
> "Error (use-package): lua-mode/:catch: Unknown rx form ‘symbol’"
>
> It works when I let emacs download it from melpa. I tried updating
> emacs-lua-mode to 20200508, which is the same version as on melpa.
>
> Still the same issue.
>
> Could this be an issue that it's using emacs-minimal-26.3 to byte compile
> the files? Where I'm using emacs-next aka emasc-27.0. Judging by this issue
> [1] the rx package has gone through some changes in 27.0.

This seems to be reported upstream as 

             https://github.com/immerrr/lua-mode/issues/155

You may be right. Files byte-compiled with Emacs 26 may not be
compatible with Emacs 27.

I don't know what can be done on Guix's side, tho.

> I've attached the backtrace and the patch for the latest
> emacs-lua-mode.

Could you send another bug report for the package update?

Regards,

-- 
Nicolas Goaziou

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