bug#68098: [PATCH] gnu: libid3tag: Fix cross-compiling.

[Mathieu Othacehe]

Hello,

> +        ,@(if (and (%current-target-system)
> +                   (or (target-riscv64?)
> +                       (target-aarch64?)))
> +              `((add-after 'unpack
> +                    'update-config
> +                  (lambda* (#:key native-inputs inputs
> +                            #:allow-other-keys)
> +                    (for-each
> +                     (lambda (file)
> +                       (install-file
> +                        (search-input-file
> +                         (or native-inputs inputs)
> +                         (string-append
> +                          "/bin/" file)) "."))
> +                     '("config.guess" "config.sub")))))
> +              '()))))

It is important to stay below the 78 columns limit but, going the other
direction decreases the readability. I joined a few lines before
applying.

Thanks,

Mathieu