[3.9] bpo-41100: Support macOS 11 and Apple Silicon (GH-22855) (GH-23295)

* [3.9] 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..
(cherry picked from commit 41761933c1)

Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>

* Back port of changes to _decimal to support arm64

* temp_dir is in test.support in 3.9
This commit is contained in:
Ronald Oussoren 2020-11-22 11:18:40 +01:00 committed by GitHub
parent 0aab3522b2
commit e8b1c038b1
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28 changed files with 1659 additions and 413 deletions

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@ -245,7 +245,7 @@ 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')