[issue20665] 3.4 cherry-pick: 400a8e4599d9 rename posix_close to avoid namespace clash

[Larry Hastings]

New submission from Larry Hastings:

Creating new issue from #20594 to track cherry-picking this into 3.4.0.

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assignee: larry
components: Build
messages: 211439
nosy: larry
priority: release blocker
severity: normal
stage: commit review
status: open
title: 3.4 cherry-pick: 400a8e4599d9 rename posix_close to avoid namespace clash
type: compile error
versions: Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20665>
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