On Fri, Jun 02, 2023 at 11:03:42PM +0100, Christopher Baines wrote: > > guix-commits@gnu.org writes: > > > efraim pushed a commit to branch master > > in repository guix. > > > > commit 076688fa1e41a09f034a80e1a593bac43f1f1482 > > Author: Efraim Flashner > > 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: ... It's not that it's triggered rebuilds, but that it's triggered builds. It's also triggered builds on powerpc64le and riscv64. Before any package which had openblas as a transitive dependency wasn't built by the CI because it wasn't substitutable¹. People still have the option of using package transformations to use openblas tuned for the cortex a7 or a15 on armhf, but in reality this just unlocks substitutes for those ~5600 packages which wasn't available before. ¹ We saw this in the past briefly in the past when openzfs made its way as a dependency to qemu and through that to Gnome. -- Efraim Flashner רנשלפ םירפא GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted