CI Enable native osx-arm64 wheels on Python 3.8 (#25427)

thomasjpfan · ogrisel · web-flow · commit 134c492bf0b2 · 2023-01-18T17:49:45.000Z
[cd build cirrus]

Co-authored-by: Olivier Grisel &lt;olivier.grisel@ensta.org&gt;
diff --git a/build_tools/cirrus/arm_wheel.yml b/build_tools/cirrus/arm_wheel.yml
@@ -16,10 +16,7 @@ macos_arm64_wheel_task:
     CONDA_HOME: $HOME/mambaforge
   matrix:
     - env:
-        # cibuildwheel can not test on Python 3.8 even on a Apple Silicon machine.
-        # For details see: https://github.com/pypa/cibuildwheel/pull/1169
         CIBW_BUILD: cp38-macosx_arm64
-        CIBW_TEST_SKIP: "*"
     - env:
         CIBW_BUILD: cp39-macosx_arm64
     - env:
diff --git a/build_tools/wheels/build_wheels.sh b/build_tools/wheels/build_wheels.sh
@@ -35,6 +35,14 @@ if [[ $(uname) == "Darwin" ]]; then
     export CFLAGS="$CFLAGS -I$PREFIX/include"
     export CXXFLAGS="$CXXFLAGS -I$PREFIX/include"
     export LDFLAGS="$LDFLAGS -Wl,-rpath,$PREFIX/lib -L$PREFIX/lib -lomp"
+
+    if [[ $(uname -m) == "arm64" && "$CIBW_BUILD" == "cp38-macosx_arm64" ]]; then
+        # Enables native building and testing for macosx arm on Python 3.8. For details see:
+        # https://cibuildwheel.readthedocs.io/en/stable/faq/#macos-building-cpython-38-wheels-on-arm64
+        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"
+    fi
 fi
 
 # The version of the built dependencies are specified
