Bug#923607: openblas: FTBFS if CPU is not detected

[Santiago Vila]

> Still there seems to be an issue with your specific build environment,
> and of course this is a bug (but maybe not an RC one, since you are the
> first to report such a build failure after many years). Could you give
> more details about the hardware you are using?

I'm currently using Scaleway 1-XS and 1-S instances. On both types of
instances the package always fail to build. I didn't find a way to
move the "unbuildability property" to a non-failing machine (for
example, by taking /proc/cpuinfo in the failing machine and using
bind-mount on the non-failing machine), so I decided to report it anyway
without a "recipe to reproduce it" but with an offer to ssh into a failing
machine instead.

Thanks.