bpo-41100: Support macOS 11 and Apple Silicon (GH-22855)

Co-authored-by:  Lawrence D’Anna <lawrence_danna@apple.com>

* Add support for macOS 11 and Apple Silicon (aka arm64)
   
  As a side effect of this work use the system copy of libffi on macOS, and remove the vendored copy

* Support building on recent versions of macOS while deploying to older versions

  This allows building installers on macOS 11 while still supporting macOS 10.9.
This commit is contained in:
Ronald Oussoren 2020-11-08 10:05:27 +01:00 committed by GitHub
parent fd6f6fa403
commit 41761933c1
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27 changed files with 1654 additions and 412 deletions

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@ -246,7 +246,7 @@ class PlatformTest(unittest.TestCase):
self.assertEqual(res[1], ('', '', ''))
if sys.byteorder == 'little':
self.assertIn(res[2], ('i386', 'x86_64'))
self.assertIn(res[2], ('i386', 'x86_64', 'arm64'))
else:
self.assertEqual(res[2], 'PowerPC')