Test experimental branch of delocate.

Update MacOS to use SDL 2.0.14, a version known to have issues with
delocate.

Author: HexDecimal

.github/workflows/python-package-macos.yml

@@ -41,25 +41,56 @@ jobs:
     - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install pytest pytest-cov pytest-benchmark delocate wheel twine
+        python -m pip install pytest pytest-cov pytest-benchmark wheel twine
+        python -m pip install git+https://github.com/HexDecimal/delocate.git@loader_path
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Build package.
       env:
         TCOD_TAG: ${{ github.event.release.tag_name }}
       run: |
         python setup.py sdist develop bdist_wheel --py-limited-api=cp35
-    - name: Package binary files
-      run: |
-        delocate-wheel -v dist/*.whl
-        delocate-listdeps --all dist/*.whl
     - name: Test with pytest
       run: |
         pytest --no-window --cov-report=xml
     - uses: codecov/codecov-action@v1
+    - name: Package binary files
+      run: |
+        delocate-wheel -v dist/*.whl
+        delocate-listdeps --all dist/*.whl
+    - name: Archive wheel
+      uses: actions/upload-artifact@v2
+      with:
+        name: wheel-macos
+        path: dist/*.whl
+        retention-days: 1
     - name: Upload to PyPI
       if: github.event_name == 'release'
       env:
         TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
         TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
       run: |
         twine upload --skip-existing dist/*
+
+  isolated_test:
+    name: Verify wheel dependencies
+    needs: build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: ['macos-11.0']
+        python-version: ['3.7.9']
+    steps:
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - uses: actions/download-artifact@v2
+      with:
+        name: wheel-macos
+        path: dist
+    - name: Install tcod from wheel
+      run: |
+        python -m pip install dist/*.whl
+    - name: Verify dependency correctness
+      run: |
+        python -c "import tcod"

build_libtcod.py

@@ -27,9 +27,7 @@
 # The SDL2 version to include in binary distributions.
 # MacOS delocate-wheel will fail without throwing an error when bundling
 # modern versions of SDL.
-SDL2_BUNDLE_VERSION = os.environ.get(
-    "SDL_VERSION", "2.0.10" if sys.platform == "darwin" else "2.0.14"
-)
+SDL2_BUNDLE_VERSION = os.environ.get("SDL_VERSION", "2.0.14")
 
 HEADER_PARSE_PATHS = ("tcod/", "libtcod/src/libtcod/")
 HEADER_PARSE_EXCLUDES = ("gl2_ext_.h", "renderer_gl_internal.h", "event.h")