[bug#51747] [PATCH]: gnu: nix: Update to 2.4.

[Maxime Devos]

Zhu Zihao schreef op vr 14-01-2022 om 17:31 [+0800]:
> [...]
> +(define-public libcpuid
> +  (let ((commit "2e61160983f32ba840b2246d3c3850c44626ab0d")
> +        (revision "1"))
> +    (package
> +      (name "libcpuid")
> +      (version (git-version "0.5.1" revision commit))

There's a good reason for using an unreleases version here,
but this should ideally be documented with a comment,
maybe

  ;; See <https://github.com/anrieff/libcpuid/pull/159>

> +      (source
> +       (origin
> +         (method git-fetch)
> +         (uri (git-reference
> +               (url "https://github.com/anrieff/libcpuid";)
> +               (commit commit)))
> +         (sha256
> +          (base32
> "1mphvkiqq6z33sq6i490fq27sbyylacwrf8bg7ccvpcjms208sww"))
> +         (modules '((guix build utils)))
> +         (snippet
> +          ;; Remove blobs
> +          #~(begin
> +              (delete-file "libcpuid/msrdriver.c")
> +              (delete-file-recursively "contrib/MSR Driver")))
> +         (file-name (git-file-name name version))))
> +      (build-system cmake-build-system)
> +      (arguments
> +       (list #:tests? #f))              ;broken

In which manner are they broken?  Maybe they can be fised.

> +      (supported-systems '("x86_64-linux" "i686-linux"))

See my e-mail about target-x86-64? and the Hurd.

> +      (home-page "https://libcpuid.sourceforge.net/";)
> +      (synopsis "Small library for x86 CPU detection and feature
> extraction")
> +      (description "Libcpuid is a small C library to get vendor,
> model, branding
> +string, code name and other information from x86 CPU.")

It seems easy to confuse this with the package 'cpuid', maybe you
can mention 'cpuid' and 'libcpuid' are unrelated packages, albeit
for a similar purpose?

Greetings,
Maxime.

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