[issue41875] __builtin_unreachable error in gcc 4.4.5

[STINNER Victor]

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

FYI __builtin_unreachable() is used since this change, of bpo-38249:

commit eebaa9bfc593d5a46b293c1abd929fbfbfd28199
Author: Serhiy Storchaka <storchaka at gmail.com>
Date:   Mon Mar 9 20:49:52 2020 +0200

    bpo-38249: Expand Py_UNREACHABLE() to __builtin_unreachable() in the release mode. (GH-16329)
    
    Co-authored-by: Victor Stinner <vstinner at python.org>

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