add USE_CUDA env in python_build

build_python.py

@@ -26,12 +26,19 @@ def build(setup_kwargs):
     print(f"Project root: {project_root}")
     print(f"Target binary dir: {package_dir}")
 
+    # Determine if CUDA should be enabled
+    use_cuda = os.environ.get("USE_CUDA", "OFF").upper()
+    if use_cuda in ["ON", "1", "TRUE", "YES"]:
+        use_cuda = "ON"
+    else:
+        use_cuda = "OFF"
+    
     # CMake configuration
     cmake_args = [
         f"-DCMAKE_LIBRARY_OUTPUT_DIRECTORY={package_dir}",
         f"-DPYTHON_EXECUTABLE={sys.executable}",
         "-DCMAKE_BUILD_TYPE=Release",
-        "-DUSE_CUDA=OFF", 
+        f"-DUSE_CUDA={use_cuda}", 
         "-G", "Unix Makefiles",
     ]