Re: [bug#42738] [PATCH v4] gnu: emacs: Update to 27.1.

[Mark H Weaver]

Hi Amin,

Amin Bandali <bandali@gnu.org> wrote:

> Brett Gilio writes:
> 
> [...]
>>
>> Also, are we planning to keep emacs-next and have it track 28.x or
>> remove it?
>>
>> Brett Gilio
>
> I would like it if it's kept.  Though, if it is truly meant to track the
> "next" release of Emacs, it should be pointed at the `emacs-27' branch,
> as there will likely be one or more point releases in the 27 series.

Feel free to re-add it.  I was torn about whether to remove it.  Anyway,
most of its code is now integrated into the main 'emacs' package, so it
should be a lot simpler now.  Here's a first draft (untested), but of
course it should be updated to a later commit:

--8<---------------cut here---------------start------------->8---
(define-public emacs-next
  (let ((commit "c36c5a3dedbb2e0349be1b6c3b7567ea7b594f1c")
        (revision "0")
        (emacs-version "27.0.91"))
    (package
      (inherit emacs)
      (name "emacs-next")
      (version (git-version emacs-version revision commit))
      (source
       (origin
         (inherit (package-source emacs))
         (method git-fetch)
         (uri (git-reference
               (url "https://git.savannah.gnu.org/git/emacs.git";)
               (commit commit)))
         (sha256
          (base32 "0mlrg2npy1r79laahkgzhxd1qassfcdz8qk1cpw7mqgf6y5x505h"))
         (file-name (git-file-name name version))))
      (native-inputs
       `(("autoconf" ,autoconf)      ; needed when building from trunk
         ,@(package-native-inputs emacs)))

      ;; TODO: consider changing `emacs' to use a more robust way of
      ;; specifying version for "EMACSLOADPATH", so as to avoid having to
      ;; duplicate native-search-paths here.
      (native-search-paths
       (list (search-path-specification
              (variable "EMACSLOADPATH")
              ;; The versioned entry is for the Emacs' builtin libraries.
              (files
               (list "share/emacs/site-lisp"
                     (string-append "share/emacs/" emacs-version "/lisp"))))
             (search-path-specification
              (variable "INFOPATH")
              (files '("share/info"))))))))
--8<---------------cut here---------------end--------------->8---

     Regards,
       Mark