[issue19922] mbstate_t requires _INCLUDE__STDC_A1_SOURCE

[Roundup Robot]

Roundup Robot added the comment:

New changeset 4221d5d9ac84 by Christian Heimes in branch 'default':
Attempt to fix OpenIndiana build issue introduced by #19922
http://hg.python.org/cpython/rev/4221d5d9ac84

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19922>
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