wip

.github/workflows/main.yml

@@ -163,6 +163,28 @@ jobs:
           source /tmp/venv/bin/activate
           pytest
 
+  test_msvc_python_mingw:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.12
+      - name: Install tox
+        run: python -m pip install tox
+      - name: Install GCC
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: ucrt64
+          install: mingw-w64-ucrt-x86_64-cc
+      - name: Run
+        run: |
+          $env:MSYS2_ROOT = msys2 -c 'cygpath -m /'
+          $env:PATH = "$env:MSYS2_ROOT/ucrt64/bin;$env:PATH"
+          $env:DISTUTILS_TEST_DEFAULT_COMPILER = "mingw32"
+          tox
+
   ci_setuptools:
     # Integration testing with setuptools
     strategy:

conftest.py

@@ -162,3 +162,26 @@ def disable_macos_customization(monkeypatch):
     from distutils import sysconfig
 
     monkeypatch.setattr(sysconfig, '_customize_macos', lambda: None)
+
+
+@pytest.fixture(autouse=True, scope="session")
+def monkey_patch_get_default_compiler():
+    """
+    Monkey patch distutils get_default_compiler to allow overriding the
+    default compiler. Mainly to test mingw32 with a MSVC Python.
+    """
+    from distutils import ccompiler
+
+    default_compiler = os.environ.get("DISTUTILS_TEST_DEFAULT_COMPILER")
+
+    if default_compiler is not None:
+
+        def patched_get_default_compiler(*args, **kwargs):
+            return default_compiler
+
+        original = ccompiler.get_default_compiler
+        ccompiler.get_default_compiler = patched_get_default_compiler
+        yield
+        ccompiler.get_default_compiler = original
+    else:
+        yield

tox.ini

@@ -5,6 +5,8 @@ setenv =
 	PYTHONWARNDEFAULTENCODING = 1
 	# pypa/distutils#99
 	VIRTUALENV_NO_SETUPTOOLS = 1
+pass_env =
+	DISTUTILS_TEST_DEFAULT_COMPILER
 commands =
 	pytest {posargs}
 usedevelop = True