https://github.com/pypa/distutils/pull/36 diff --git a/distutils/spawn.py b/distutils/spawn.py index a73b8b9..b012d00 100644 --- Lib/distutils/spawn.py +++ Lib/distutils/spawn.py @@ -60,13 +60,17 @@ def spawn(cmd, search_path=1, verbose=0, dry_run=0, env=None): if _cfg_target: _cfg_target_split = [int(x) for x in _cfg_target.split('.')] if _cfg_target: - # ensure that the deployment target of build process is not less - # than that used when the interpreter was built. This ensures - # extension modules are built with correct compatibility values + # Ensure that the deployment target of the build process is not + # less than 10.3 if the interpreter was built for 10.3 or later. + # This ensures extension modules are built with correct + # compatibility values, specifically LDSHARED which can use + # '-undefined dynamic_lookup' which only works on >= 10.3. cur_target = os.environ.get('MACOSX_DEPLOYMENT_TARGET', _cfg_target) - if _cfg_target_split > [int(x) for x in cur_target.split('.')]: + cur_target_split = [int(x) for x in cur_target.split('.')] + if _cfg_target_split[:2] >= [10, 3] and cur_target_split[:2] < [10, 3]: my_msg = ('$MACOSX_DEPLOYMENT_TARGET mismatch: ' - 'now "%s" but "%s" during configure' + 'now "%s" but "%s" during configure;' + 'must use 10.3 or later' % (cur_target, _cfg_target)) raise DistutilsPlatformError(my_msg) env = dict(os.environ,