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DOC: Document macOS 3.8 arm64 workaround (#1871)

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* BUG: Fix bug with macOS 3.8 arm64 URL

* TST: Ping

* DOC: Update

* FIX: Remove old

* DOC: Both

* Apply suggestions from code review

Co-authored-by: Matthieu Darbois <mayeut@users.noreply.github.com>

---------

Co-authored-by: Matthieu Darbois <mayeut@users.noreply.github.com>
This commit is contained in:
Eric Larson
2024-06-27 11:52:32 -04:00
committed by GitHub
co-authored by Matthieu Darbois
parent 9bb03835e5
commit 08165ffeed
1 changed files with 17 additions and 8 deletions
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docs/faq.md
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@@ -363,16 +363,25 @@ If you're building on an arm64 runner, you might notice something strange about
This is fine for simple C extensions, but for more complicated builds on arm64 it becomes an issue.
So, if the cross-compilation is an issue for you, there is an 'experimental' installer available that's built natively for arm64.
To use this installer and perform native CPython 3.8 building, before invoking cibuildwheel, install the universal2 version of Python on your arm64 runner, something like:
So, if you want to build macOS arm64 wheels on an arm64 runner (e.g., `macos-14`) on Python 3.8, before invoking cibuildwheel, you should install a native arm64 Python 3.8 interpreter on the runner:
```bash
curl -o /tmp/Python38.pkg https://www.python.org/ftp/python/3.8.10/python-3.8.10-macos11.pkg
sudo installer -pkg /tmp/Python38.pkg -target /
sh "/Applications/Python 3.8/Install Certificates.command"
```
!!! tab "GitHub Actions"
```yaml
- uses: actions/setup-python@v5
with:
python-version: 3.8
if: runner.os == 'macOS' && runner.arch == 'ARM64'
```
!!! tab "Generic"
```bash
curl -o /tmp/Python38.pkg https://www.python.org/ftp/python/3.8.10/python-3.8.10-macos11.pkg
sudo installer -pkg /tmp/Python38.pkg -target /
sh "/Applications/Python 3.8/Install Certificates.command"
```
Then cibuildwheel will detect that it's installed and use it instead. However, you probably don't want to build x86_64 wheels on this Python, unless you're happy with them only supporting macOS 11+.