Fix build: disable GUI in setup.py to avoid OpenGL dependency

Author: JDRomano2

.github/workflows/build-docs.yml

@@ -52,7 +52,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install sphinx furo numpydoc breathe myst-parser
-          CMAKE_ARGS="-DBUILD_GUI=OFF" pip install -e .
+          pip install -e .
 
       - name: Build documentation (Doxygen + Sphinx)
         working-directory: docs

setup.py

@@ -36,6 +36,7 @@ def build_extension(self, ext):
             f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={extdir}",
             f"-DPYTHON_EXECUTABLE={sys.executable}",
             "-DBUILD_PYTHON_BINDINGS=ON",
+            "-DBUILD_GUI=OFF",
         ]
 
         cfg = "Debug" if self.debug else "Release"