[bug#69581] [PATCH 07/11] gnu: rust: Add tuning information.

["Ludovic Courtès" <ludo@gnu.org>]

Efraim Flashner <efraim@flashner.co.il> skribis:

> On Wed, Mar 06, 2024 at 07:10:54PM +0100, Ludovic Courtès wrote:
>> Efraim Flashner <efraim@flashner.co.il> skribis:
>> 
>> > +      (properties `(`(append
>> > +                       ,(alist-delete 'hidden? (package-properties base-rust))
>> > +                       ,@(clang-properties "15"))))
>> 
>> Just realized that we cannot really call ‘clang-properties’ from here
>> because ‘properties’ is not a thunked field, so this would lead to a
>> top-level circular dependency…  You might need to duplicate the info.
>
> We also use the list for zig.
>
> Considering we're only supporting one version for rust duplicating the
> information wouldn't be the worst thing but it'd be better to only have
> it declared in one spot.

Then it should be declared in a module that’s not in a cycle with its
users (that’s annoying!).  Maybe a separate ‘llvm-meta.scm’?

Ludo’.