bpo-36235: Fix distutils test_customize_compiler() on macOS (GH-12764)


Set CUSTOMIZED_OSX_COMPILER to True to disable
_osx_support.customize_compiler().
(cherry picked from commit a9bd8925c7fa50dd3cfab125b824ec192133ef49)

Co-authored-by: Victor Stinner <vstinner@redhat.com>
1 file changed