CI: get back PowerPC wheels

Author: jdavid

.github/workflows/wheels.yml

@@ -10,12 +10,12 @@ on:
 
 jobs:
   build_wheels:
-    name: Build wheels on ${{ matrix.os }}
+    name: Build wheels for ${{ matrix.name }}
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         include:
-        - name: linux
+        - name: linux-amd
           os: ubuntu-24.04
         - name: linux-arm
           os: ubuntu-24.04-arm
@@ -40,9 +40,37 @@ jobs:
           name: wheels-${{ matrix.name }}
           path: ./wheelhouse/*.whl
 
+  build_wheels_ppc:
+    name: Build Linux wheels for PowerPC
+    runs-on: ubuntu-24.04
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - uses: docker/setup-qemu-action@v3
+        with:
+          platforms: linux/ppc64le
+
+      - name: Install cibuildwheel
+        run: python -m pip install cibuildwheel==2.22.0
+
+      - name: Build wheels
+        run: python -m cibuildwheel --output-dir wheelhouse
+        env:
+          CIBW_ARCHS: ppc64le
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: wheels-linux-ppc
+          path: ./wheelhouse/*.whl
+
   pypi:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
-    needs: [build_wheels]
+    needs: [build_wheels, build_wheels_ppc]
     runs-on: ubuntu-24.04
 
     steps: