guix-commits@gnu.org writes:

> efraim pushed a commit to branch master
> in repository guix.
>
> commit 076688fa1e41a09f034a80e1a593bac43f1f1482
> Author: Efraim Flashner <efraim@flashner.co.il>
> AuthorDate: Thu Jun 1 11:06:00 2023 +0300
>
>     gnu: openblas: Update architectures we provide substitutes for.
>
>     * gnu/packages/maths.scm (openblas)[arguments]: Adjust the substitutable?
>     flag to only not provide substitutes when building for powerpc-linux.
>     Adjust the comment accordingly.
> ---
>  gnu/packages/maths.scm | 11 ++---------
>  1 file changed, 2 insertions(+), 9 deletions(-)

I've been looking at why armhf-linux substitute availability has been
dropping recently, and I think this change triggered a lot of
rebuilds. Could this have gone to core-updates?

→ guix refresh -l openblas
Building the following 2282 packages would ensure 5596 dependent packages are rebuilt: ...