Method test_build_cpp11

Lib/test/test_cppext/__init__.py:116–117

(self)

    @unittest.skipIf(support.MS_WINDOWS, "MSVC doesn't support /std:c++11")
    def test_build_cpp11(self):
        self.check_build('_testcpp11ext', std='c++11')

    # Only test C++14 on MSVC.
    # On s390x RHEL7, GCC 4.8.5 doesn't support C++14.