[issue42587] memoryview rely on _Bool undefined behavior (test_buffer fails on Python built with GCC 11)

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

> I reported the bug to GCC upstream: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98190

GCC got a fix:
https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=3e60ddeb8220ed388819bb3f14e8caa9309fd3c2

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