bpo-29643: Fix check for --enable-optimizations (GH-129) by vstinner · Pull Request #870 · python/cpython

the-knights-who-say-ni

The presence of the ``--enable-optimizations`` flag is indicated by the
value of ``$enableval``, but the configure script was checking ``$withval``,
resulting in the ``--enable-optimizations`` flag being effectively ignored.
(cherry picked from commit 8cea592)