Hi Arjun, On Tuesday, 28 July 2026 18:59:55 Central European Summer Time Arjun Shankar via devel wrote: > 2. pypi wheels and other Python extensions: > > I think the way to tackle this is to discuss an upstream change in > cpython CFLAGS (which are, e.g. inherited by manylinux which is used > to build wheels). I have a patch ready, and have started this > discussion: > https://discuss.python.org/t/add-x86-64-shadow-stack-support-for-linux/1083 > 09 and filed a (for now closed, but I'd say there is no definitive > verdict until the discussion proceeds) issue: > https://github.com/python/cpython/issues/154820
in my understanding, the correct place for this is the PyPA's manylinux project. I have opened a draft pull request with them: https://github.com/pypa/manylinux/pull/1970 ... and was asked to launch a discussion thread in the Python Packaging forum: https://discuss.python.org/t/building-extensions-with-hardening-flags-via-manylinux/108354 Best regards, Christoph
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