ci: add musllinux wheels

Author: indygreg

.github/workflows/wheel.yml

@@ -11,8 +11,10 @@ jobs:
       matrix:
         image:
           - 'quay.io/pypa/manylinux2014_aarch64'
+          - 'quay.io/pypa/musllinux_1_1_aarch64'
           - 'quay.io/pypa/manylinux2014_i686'
           - 'quay.io/pypa/manylinux2014_x86_64'
+          - 'quay.io/pypa/musllinux_1_1_x86_64'
         py:
           - 'cp38-cp38'
           - 'cp39-cp39'
@@ -24,7 +26,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up QEMU
-        if: ${{ matrix.image == 'quay.io/pypa/manylinux2014_aarch64' }}
+        if: ${{ endsWith(matrix.image, 'aarch64') }}
         uses: docker/setup-qemu-action@v3
 
       - name: Build Wheel

ci/build-manylinux-wheel.sh

@@ -8,7 +8,9 @@
 set -ex
 
 # Missing libffi on aarch64
-yum install -y libffi-devel
+if [ -x /usr/bin/yum ]; then
+    yum install -y libffi-devel
+fi
 
 if [ -e /tmp/wheels ]; then
     echo "/tmp/wheels should not exist!"

docs/news.rst

@@ -87,6 +87,8 @@ Changes
 * CI now builds wheels with pip instead of ``setup.py`` directly.
 * Official support for CPython 3.12. Binary wheels for 3.12 are now published
   during releases. There were no meaningful code changes to support Python 3.12.
+* Binary wheels for musllinux_1_1 x86_64 and aarch64 are now being built and
+  published.
 
 0.21.0 (released 2023-04-16)
 ============================