add github workflow for test-pypi cross-OS wheel builds

Author: AlePalu

.github/workflows/testpypi.yml .github/workflows/testpypi-linux.yml.github/workflows/testpypi.yml renamed to .github/workflows/testpypi-linux.yml

@@ -7,11 +7,8 @@ on:
 
 jobs:
   build_wheels:
-    name: Build wheels on ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest]
+    name: Build linux wheels
+    runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v6

.github/workflows/testpypi-macos.yml

@@ -0,0 +1,44 @@
+name: Build and upload wheels to TestPyPI
+
+on:
+  push:
+    tags:
+      - "v*-test*"   # only run on tags for experimental versions
+
+jobs:
+  build_wheels:
+    name: Build macos wheels
+    runs-on: macos-15
+
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+
+      # Used to host cibuildwheel
+      - uses: actions/setup-python@v6
+
+      # install build depdencies
+      - name: Install build tools
+        run: python -m pip install setuptools wheel cibuildwheel build twine nanobind
+
+      - name: Download Eigen headers
+        run: |
+          mkdir -p deps
+          mkdir -p deps/eigen3
+          curl -L https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.tar.gz \
+            | tar xz -C deps/eigen3 --strip-components=1
+
+      - name: Build wheels
+        run: python -m cibuildwheel --output-dir wheelhouse
+        env:
+          CIBW_BUILD: "cp311-*"
+
+      - name: Upload to TestPyPI
+        run: |
+          twine upload \
+            --repository-url https://test.pypi.org/legacy/ \
+            wheelhouse/* dist/*
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.TEST_PYPI_TOKEN }}

CMakeLists.txt

@@ -11,7 +11,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
 set(WARNING_FLAGS "")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2 -g -march=x86-64 ${WARNING_FLAGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2 -g -march=native ${WARNING_FLAGS}")
 
 find_package(Eigen3 QUIET NO_MODULE)