[issue43335] _ctypes/callbacks.c cannot be compiled by gcc 4.4.7 (RHEL6)

[Dong-hee Na]

Change by Dong-hee Na <donghee.na at python.org>:


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versions: +Python 3.10

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43335>
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