finalize windows build

Author: Tieqiong

.github/workflows/wheels.yml

@@ -66,26 +66,23 @@ jobs:
         with:
           output-dir: wheelhouse
 
-      - name: Set up conda for Windows
-        if: runner.os == 'Windows'
-        uses: conda-incubator/setup-miniconda@v3
-        with:
-          activate-environment: gsl
-          auto-update-conda: true
-          environment-file: environment.yml
-          auto-activate-base: false
-
-      - name: install gsl for Windows
+      - name: Install GSL and Set Environment for GSL on Windows
         if: runner.os == 'Windows'
+        shell: pwsh
         run: |
-          conda config --set always_yes yes --set changeps1 no
-          conda install gsl
+          git clone https://github.com/microsoft/vcpkg.git C:\vcpkg
+          cd C:\vcpkg
+          .\bootstrap-vcpkg.bat
+          .\vcpkg integrate install
+          .\vcpkg install gsl gsl:x64-windows
 
       - name: Build wheels for Windows
         if: runner.os == 'Windows'
         uses: pypa/[email protected]
         env:
           CIBW_BUILD: ${{ matrix.python[1] }}-${{ matrix.buildplat[1] }}
+          CIBW_ENVIRONMENT: |
+            GSL_PATH=C:/vcpkg/installed/x64-windows
           CONDA_PREFIX: ${{ env.CONDA_PREFIX }}
         with:
           output-dir: wheelhouse

setup.py

@@ -76,6 +76,25 @@ def get_gsl_config_win():
     return rv
 
 
+def get_gsl_config_win():
+    """Return dictionary with paths to GSL library on Windows."""
+    gsl_path = os.environ.get("GSL_PATH")
+    if gsl_path:
+        inc = os.path.join(gsl_path, "include")
+        lib = os.path.join(gsl_path, "lib")
+    else:
+        conda_prefix = os.environ.get("CONDA_PREFIX")
+        if conda_prefix:
+            inc = os.path.join(conda_prefix, "Library", "include")
+            lib = os.path.join(conda_prefix, "Library", "lib")
+        else:
+            raise EnvironmentError(
+                "Neither GSL_PATH nor CONDA_PREFIX environment variables are set. "
+                "Please ensure GSL is installed and GSL_PATH is correctly set."
+            )
+
+    return {"include_dirs": [inc], "library_dirs": [lib]}
+
 # ----------------------------------------------------------------------------
 
 # compile and link options