[issue9862] PIPE_BUF is invalid on AIX

[Sébastien Sablé]

Changes by Sébastien Sablé <sable at users.sourceforge.net>:


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title: test_subprocess hangs on AIX -> PIPE_BUF is invalid on AIX

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9862>
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