ci: enable Win ARM

.github/workflows/wheels.yml

@@ -10,6 +10,9 @@ on:
     types:
       - published
 
+env:
+  FORCE_COLOR: 3
+
 jobs:
   build_sdist:
     name: Build SDist
@@ -36,7 +39,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [windows-latest]
 
     steps:
     - uses: actions/checkout@v3
@@ -45,11 +48,20 @@ jobs:
 
     - uses: pypa/[email protected]
       env:
+        CIBW_BUILD: cp311-* cp312-*
+
         # Cross-compile on macOS
         CIBW_ARCHS_MACOS: x86_64 arm64
 
+        # Cross-compile on Win
+        CIBW_ARCHS_WINDOWS: ARM64
+
         # Temporary: use pre-release Python 3.12 for stable ABI builds
         CIBW_PRERELEASE_PYTHONS: True
+
+        # Debugging
+        SKBUILD_CMAKE_VERBOSE: 1
+        SKBUILD_LOGGING_LEVEL: DEBUG
 
     - name: Verify clean directory
       run: git diff --exit-code

CMakeLists.txt

@@ -25,14 +25,44 @@ if (NOT SKBUILD)
   after editing C++ files.")
 endif()
 
+include(CMakePrintHelpers)
+
+message(STATUS "PYTHONPATH: $ENV{PYTHONPATH}")
+message(STATUS "_PYTHON_SYSCONFIGDATA_NAME: $ENV{_PYTHON_SYSCONFIGDATA_NAME}")
+
+execute_process(
+  COMMAND "${Python_EXECUTABLE}" "-c"
+    "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))"
+  OUTPUT_VARIABLE EXT_SUFFIX
+  OUTPUT_STRIP_TRAILING_WHITESPACE)
+cmake_print_variables(EXT_SUFFIX)
+
 # Try to import all Python components potentially needed by nanobind
 find_package(Python 3.8
-  REQUIRED COMPONENTS Interpreter Development.Module
-  OPTIONAL_COMPONENTS Development.SABIModule)
+  REQUIRED COMPONENTS Interpreter Development.Module ${SKBUILD_SABI_COMPONENT})
 
 # Import nanobind through CMake's find_package mechanism
 find_package(nanobind CONFIG REQUIRED)
 
+execute_process(
+  COMMAND "${Python_EXECUTABLE}" "-c"
+    "import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))"
+  OUTPUT_VARIABLE EXT_SUFFIX
+  OUTPUT_STRIP_TRAILING_WHITESPACE)
+cmake_print_variables(EXT_SUFFIX)
+
+execute_process(
+  COMMAND "${Python_EXECUTABLE}" "-c"
+    "import sysconfig; print(sysconfig.get_config_var('SOABI'))"
+  OUTPUT_VARIABLE SOABI
+  OUTPUT_STRIP_TRAILING_WHITESPACE)
+cmake_print_variables(SOABI)
+
+message(STATUS "PYTHONPATH: $ENV{PYTHONPATH}")
+message(STATUS "_PYTHON_SYSCONFIGDATA_NAME: $ENV{_PYTHON_SYSCONFIGDATA_NAME}")
+
+cmake_print_variables(Python_SOABI SKBUILD_SOABI NB_SUFFIX)
+
 # We are now ready to compile the actual extension module
 nanobind_add_module(
   # Name of the extension

pyproject.toml

@@ -1,5 +1,7 @@
 [build-system]
-requires = ["scikit-build-core >=0.4.3", "nanobind >=1.3.2"]
+requires = [
+    "scikit-build-core @ git+https://github.com/scikit-build/scikit-build-core@henryiii/fix/backport327",
+    "nanobind @ git+https://github.com/wjakob/nanobind@master"]
 build-backend = "scikit_build_core.build"
 
 [project]