[bug#43722] Add emacs-gcmh package

[Nicolas Goaziou <mail@nicolasgoaziou.fr>]

Hello,

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

> * gnu/packages/emacs-xyz.scm (emacs-gcmh): New variable.

Thank you.

Some comments follow.

> +(define-public emacs-gcmh
> +  (let ((commit "84c43a4c0b41a595ac6e299fa317d2831813e580")
> +        (revision "0"))

Could you add a comment explaining why we're providing a specific commit
instead of a tagged release?

> +    (package
> +      (name "emacs-gcmh")
> +      (version (git-version "0.1" revision commit))
> +      (source
> +       (origin
> +         (method git-fetch)
> +         (uri (git-reference
> +               (url "https://gitlab.com/koral/gcmh")
> +               (commit commit)))
> +         (sha256
> +          (base32 "1r3wiqhrzh7wvqy484nl031fd4bn4cpvkv9646s4cjgvnnnv7jz3"))
> +         (file-name (git-file-name name version))))
> +      (build-system emacs-build-system)
> +      (home-page "https://gitlab.com/koral/gcmh")
> +      (synopsis
> +       "The GNU Emacs Garbage Collector Magic Hack")

The string should be moved on the same line as `synopsis'. Also:

  Emacs Garbage Collector Magic Hack

is enough.

> +      (description
> +       "This package enforces a sneaky Garbage Collection strategy to minimize

I suggest 

  ... a sneaky @dfn{garbage collector} (GC) strategy to minimize...

Could you send an updated patch?

Regards,
-- 
Nicolas Goaziou