[issue45405] configure fails on macOS with non-Apple clang version 13 which implements --print-multiarch

[Gregory Szorc]

Gregory Szorc <gregory.szorc at gmail.com> added the comment:

> Can you be more specific? This particular issue isn't about cross-compiling.

The point I was trying to make is that clang 13 generically implemented --print-multiarch and the triple logic in configure related to MULTIARCH applies to all platforms, not just macOS.

I was able to perturb this same error on Linux with an x86_64 Clang 13 with configure options --build=x86_64-unknown-linux-gnu --host=i686-unknown-linux-gnu. https://github.com/indygreg/python-build-standalone/runs/3853832124?check_suite_focus=true should work if you are logged into GitHub. Not the exact same failure, but related since it involves --print-multiarch suddenly working.

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<https://bugs.python.org/issue45405>
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