ci: update build system for numpy 2.0

Author: william-silversmith

.github/workflows/build_wheel.yml

@@ -28,10 +28,10 @@ jobs:
         uses: ssrobins/install-cmake@v1
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.16.5
+        uses: pypa/cibuildwheel@v2.19.1
         # to supply options, put them in 'env', like:
         env:
-          CIBW_BEFORE_BUILD: git submodule init && git submodule update && pip install cython oldest-supported-numpy scikit-build 
+          CIBW_BEFORE_BUILD: git submodule init && git submodule update && pip install cython numpy scikit-build 
           CPPFLAGS: -I/usr/local/opt/zlib/include
           LDFLAGS: -L/usr/local/opt/zlib/lib
           CIBW_ARCHS_MACOS: "x86_64 arm64"

pyproject.toml

@@ -3,5 +3,5 @@ requires = [
 	"setuptools",
 	"scikit-build >= 0.9.0",
 	"wheel",
-	"oldest-supported-numpy"
+	"numpy"
 ]

setup.py

@@ -8,9 +8,17 @@
 from skbuild.exceptions import SKBuildError
 from skbuild.cmaker import get_cmake_version
 
-import numpy as np
 import multiprocessing as mp
 
+class NumpyImport:
+  def __repr__(self):
+    import numpy as np
+
+    return np.get_include()
+
+  __fspath__ = __repr__
+
+
 if not "CMAKE_BUILD_PARALLEL_LEVEL" in os.environ:
     os.environ["CMAKE_BUILD_PARALLEL_LEVEL"] = str(mp.cpu_count())
 
@@ -90,7 +98,7 @@ def read(fname):
             depends=[ os.path.join(src_dir, 'DracoPy.h') ],
             language='c++',
             include_dirs = [
-                np.get_include(),
+                str(NumpyImport()),
                 os.path.join(CMAKE_INSTALL_DIR(), 'include/'),
             ],
             extra_compile_args=extra_compile_args,