Re: [OE-core] [PATCH v2] python3-cython: upgrade 3.2.9 -> 3.3.0

["Mathieu Dubois-Briand" <mathieu.dubois-briand@bootlin.com>]

On Thu Oct 8, 2026 at 11:41 AM CEST, Ross Burton via lists.openembedded.org wrote:
> Lots of upstream changes, see the full release notes at
> https://github.com/cython/cython/blob/master/CHANGES.rst
>
> Backport a commit to fix non-reproducible code generation. The type
> inference is still non-deterministic if there's ambiguity[1], but this
> fix ensures there's no ambiguity in cython itself.
>
> Disable parallel builds because there's a race which causes occasional
> build failures[2]. This has a non-trivial implication to build time
> (89.1s to 243.1s on my machine), but it builds.
>
> [1] https://github.com/cython/cython/issues/8002
> [2] https://github.com/cython/cython/issues/7997
>
> Signed-off-by: Ross Burton <ross.burton@arm.com>
> ---

Hi Ross,

It looks like we have intermittent reproducibility issues :/

https://autobuilder.yoctoproject.org/valkyrie/#/builders/37/builds/5147
https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20261009-v2gtsbmt/packages/diff-html/

It looks likes some generated _shared.c file with differences between
the two builds:

https://valkyrie.yocto.io/pub/repro-fail/oe-reproducible-20261009-v2gtsbmt/packages/diff-html/#reproducibleA-tmp---reproducibleA-tmp-deploy---reproducibleA-tmp-deploy-deb---reproducibleA-tmp-deploy-deb-x------v----reproducibleA-tmp-deploy-deb-x------v--python--cython-src_-.-.--r-_amd--.deb---data.tar.xz---data.tar---.-usr-src-debug-python--cython--.-.--Cython-_shared.c

Thanks,
Mathieu

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com