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vasiliykvasiliyk
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gh-75929: Fix configure function checks under -Wall -Werror (#161343)
Use `(void)$1` in `PY_CHECK_FUNC` instead of declaring an unused variable. The unused-variable warning caused configure to report declared functions such as `fchdir` as missing.
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‎Misc/NEWS.d/next/Build/2026-11-04-14-37-13.gh-issue-75929.nELdwE.rst‎

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Fix a ``configure`` probe that could omit functions such
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as :func:`os.fchdir` from builds using ``-Wall -Werror``.

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