bug#43722: Add emacs-gcmh package

[Ludovic Courtès]

Hi Niklas,

Niklas Eklund <niklas.eklund@posteo.net> skribis:

>>From 0feb4bd289c7bab7b82e4d2f37fc7247acda6f6e Mon Sep 17 00:00:00 2001
> From: Niklas Eklund <niklas.eklund@posteo.net>
> Date: Wed, 30 Sep 2020 15:34:36 +0200
> Subject: [PATCH v2] gnu: Add emacs-gcmh.
>
> * gnu/packages/emacs-xyz.scm (emacs-gcmh): New variable.

Looks like this addresses the comments Nicolas made, except for the
comment about the lack of a tagged release, so I went ahead and applied
it with the following change.

Thanks!

Ludo’.

diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index df22fbcc9a..0ac4c73ac7 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -1771,11 +1771,12 @@ than @code{electric-indent-mode}.")
     (license license:gpl2+)))
 
 (define-public emacs-gcmh
+  ;; No tagged release upstream.
   (let ((commit "84c43a4c0b41a595ac6e299fa317d2831813e580")
         (revision "0"))
     (package
       (name "emacs-gcmh")
-      (version (git-version "0.0.0" revision commit))
+      (version (git-version "0.1" revision commit))
       (source
        (origin
          (method git-fetch)