Fix musllinux build (#7)

.github/workflows/tests.yml

@@ -138,11 +138,10 @@ jobs:
           CIBW_BUILD_FRONTEND: build
           CIBW_ARCHS: ${{ matrix.arch }}
           CIBW_ENVIRONMENT: AIOQUIC_SKIP_TESTS=ipv6,loss
-          CIBW_SKIP: "*-musllinux*"
           CIBW_BUILD: cp39-* pp39-* pp38-*
           CIBW_TEST_COMMAND: python -m unittest discover -t {project} -s {project}/tests
           # there are no wheels for cryptography on these platforms
-          CIBW_TEST_SKIP: "*-{manylinux_i686,win32} pp*"
+          CIBW_TEST_SKIP: "*-{manylinux_i686,win32} pp* *-musllinux*"
         run: |
           pip install cibuildwheel
           cibuildwheel --output-dir dist

README.rst

@@ -26,6 +26,7 @@ Important changes/improvements are:
 - Mitigated deprecated match_hostname.
 - Mimic load_default_certs SSL context from native Python.
 - Remove the need for OpenSSL development headers.
+- Many, many more pre-built wheel for your convenience! Including PyPy 3.8 and 3.9 and musl linux distributions.
 
 ``qh3`` is a library for the QUIC network protocol in Python. It features
 a minimal TLS 1.3 implementation, a QUIC stack and an HTTP/3 stack.

pyproject.toml

@@ -67,3 +67,11 @@ select = [
 
 [tool.setuptools.dynamic]
 version = {attr = "qh3.__version__"}
+
+# neat trick to add bsd compat headers only in musllinux images
+[tool.cibuildwheel.linux]
+before-all = "echo"
+
+[[tool.cibuildwheel.overrides]]
+select = "*-musllinux*"
+before-all = "apk add bsd-compat-headers"