CI: build wheels on a real ARM runner

Drop PowerPC wheels (for now).

.github/workflows/wheels.yml

@@ -16,6 +16,8 @@ jobs:
         include:
         - name: linux
           os: ubuntu-24.04
+        - name: linux-arm
+          os: ubuntu-24.04-arm
         - name: macos
           os: macos-13
 
@@ -26,11 +28,6 @@ jobs:
         with:
           python-version: '3.11'
 
-      - uses: docker/setup-qemu-action@v3
-        if: runner.os == 'Linux'
-        with:
-          platforms: all
-
       - name: Install cibuildwheel
         run: python -m pip install cibuildwheel==2.22.0
 

pyproject.toml

@@ -5,7 +5,7 @@ requires = ["setuptools", "wheel"]
 enable = ["pypy"]
 skip = "*musllinux_aarch64 *musllinux_ppc64le"
 
-archs = ["auto"]
+archs = ["native"]
 build-frontend = "default"
 dependency-versions = "pinned"
 environment = {LIBGIT2_VERSION="1.9.0", LIBSSH2_VERSION="1.11.1", OPENSSL_VERSION="3.2.3", LIBGIT2="/project/ci"}
@@ -14,7 +14,6 @@ before-all = "sh build.sh"
 
 [tool.cibuildwheel.linux]
 repair-wheel-command = "LD_LIBRARY_PATH=/project/ci/lib64 auditwheel repair -w {dest_dir} {wheel}"
-archs = ["x86_64", "aarch64", "ppc64le"]
 
 [[tool.cibuildwheel.overrides]]
 select = "*-musllinux*"