- continuing on MacOS wheels;

.github/workflows/build-and-upload.yml

@@ -31,16 +31,16 @@ jobs:
     strategy:
       matrix:
         python_version: ['3.8', '3.9', '3.10']  # The 3.10 builds use abi3, so are good for Python 3.10+
-#        os: ['ubuntu-latest', 'macos-13', 'windows-latest']
-        os: ['macos-14']
-#        include:
-#          - os: ubuntu-latest
-#            container: quay.io/pypa/manylinux2014_x86_64  # https://github.com/pypa/manylinux
-#          # From 3.12 onwards we're a "pure Python" package;  also, only one needs to upload sources
-#          - python_version: 3.12
-#            os: ubuntu-latest
-#            container: ''
-#            upload_source: true
+        # retaining MacOS 13 build in case the MacOS 14 doesn't work on it (need to test it out)
+        os: ['ubuntu-latest', 'macos-13', 'macos-14', 'windows-latest']
+        include:
+          - os: ubuntu-latest
+            container: quay.io/pypa/manylinux2014_x86_64  # https://github.com/pypa/manylinux
+          # From 3.12 onwards we're a "pure Python" package;  also, only one needs to upload sources
+          - python_version: 3.12
+            os: ubuntu-latest
+            container: ''
+            upload_source: true
 
     steps:
       - uses: actions/checkout@v3
@@ -61,9 +61,11 @@ jobs:
           name: devN
 
       - name: select Xcode version
+        # MacOS > 14.2 requires Xcode >= 15.3; otherwise loading native extension modules fails with e.g.:
+        # dlopen(/opt/homebrew/lib/python3.11/site-packages/slipcover/probe.abi3.so, 0x0002): bad bind opcode 0x00 
         if: startsWith(matrix.os, 'macos-')
         run: |
-          sudo xcode-select -s /Applications/Xcode_15.3.app/Contents/Developer
+          if [ -d /Applications/Xcode_15.3.app/Contents/Developer ]; then sudo xcode-select --switch /Applications/Xcode_15.3.app/Contents/Developer; fi
           clang++ --version
           g++ --version