2026-04-09 nightly release (6214cb2)

Author: pytorchbot

packaging/windows/internal/vc_env_helper.bat

@@ -23,7 +23,6 @@ if "%VSDEVCMD_ARGS%" == "" (
 if "%CU_VERSION%" == "xpu" call "C:\Program Files (x86)\Intel\oneAPI\setvars.bat"
 
 set DISTUTILS_USE_SDK=1
-set CL=%CL% /Zc:preprocessor
 
 set args=%1
 shift

setup.py

@@ -128,6 +128,11 @@ def get_macros_and_flags():
     if sys.platform == "win32":
         define_macros += [("torchvision_EXPORTS", None)]
         extra_compile_args["cxx"].append("/MP")
+        extra_compile_args["cxx"].append("/Zc:preprocessor")
+        if "nvcc" in extra_compile_args:
+            extra_compile_args["nvcc"].append("-Xcompiler")
+            extra_compile_args["nvcc"].append("/Zc:preprocessor")
+            extra_compile_args["nvcc"].append("-DCCCL_IGNORE_MSVC_TRADITIONAL_PREPROCESSOR_WARNING")
         if sysconfig.get_config_var("Py_GIL_DISABLED"):
             extra_compile_args["cxx"].append("-DPy_GIL_DISABLED")