Bug#995867: xtensor: mipsel FTBFS (relocation truncated to fit: R_MIPS_CALL16)

On Wed, Oct 27, 2021 at 11:41:39AM +0200, Drew Parsons wrote:
>...
> Since these are runtime tests (compiled fresh for the test), I like the idea
> of keeping -march=native, since it will emulate what users will experience
> when they use xtensor in their own local projects.
>...

The flakiness in build results we are seeing on mips* due to that
can be a problem in general. You just got first-hand experience on the 
impossibility of debugging a problem that happens only on some buildds.

ARM builds are currently a variety of hardware, and there are literally 
dozens of cpu feature extensions some whom are implemented on a given cpu.

On x86 it is out of your control whether all buildds are Intel or all 
buildds are AMD or whether buildds are mixed.

> Drew

cu
Adrian

BTW: xtensor-blas/mipsel did just FTBFS due to this problem:
https://buildd.debian.org/status/fetch.php?pkg=xtensor-blas&arch=mipsel&ver=0.19.1-6&stamp=1635332411&raw=0