Attempt to fix shared lib problem, mesonbuild/meson-python#700

.github/workflows/pytest.yml

@@ -46,19 +46,6 @@ jobs:
         path-type: minimal
         release: false
 
-    # - name: Set Windows env
-    #   if: matrix.os == 'windows-latest'
-    #   shell: bash
-    #   run: |
-    #     set -e
-    #     # Add MSYS2 paths
-    #     echo "C:/msys64/mingw64/bin" >> $GITHUB_PATH
-    #     # Set library and include paths for meson
-    #     echo "LIBRARY_PATH=C:/msys64/mingw64/lib" >> $GITHUB_ENV
-    #     echo "CPATH=C:/msys64/mingw64/include" >> $GITHUB_ENV
-    #     echo "PKG_CONFIG_PATH=C:/msys64/mingw64/lib/pkgconfig" >> $GITHUB_ENV
-    #     echo "OPENBLAS_NUM_THREADS=1" >> $GITHUB_ENV
-
     # NOTE: No MacOS specific install.
     # We'll use the Accelerate framework instead of installing BLAS/LAPACK
 

meson.build

@@ -144,6 +144,7 @@ libpfapack = shared_library('pfapack',
   fortran_sources,
   dependencies: [lapack_dep, blas_dep, thread_dep, m_dep],
   install: true,
+  install_dir: py.get_install_dir() / 'pfapack',  # Install in package directory
 )
 
 # Include directories
@@ -159,6 +160,7 @@ libcpfapack = shared_library('cpfapack',
   link_with: libpfapack,
   dependencies: [lapack_dep, blas_dep, thread_dep, m_dep],
   install: true,
+  install_dir: py.get_install_dir() / 'pfapack',  # Install in package directory
 )
 
 # Python module

pfapack/__init__.py

@@ -1,4 +1,21 @@
 # pfapack Python package
+import os
+import sys
+from pathlib import Path
+
 from pfapack._version import __version__
 
+
+def _enable_sharedlib_loading():
+    """Enable loading of shared libraries from the package directory."""
+    if sys.platform == "win32":
+        # Get the directory containing the shared libraries
+        pkg_dir = Path(__file__).parent
+        if hasattr(os, "add_dll_directory"):
+            os.add_dll_directory(str(pkg_dir))
+
+
+# Call this before loading the shared libraries
+_enable_sharedlib_loading()
+
 __all__ = ["__version__"]