debug: try "/p:PreferredToolArchitecture=x64"

zanieb · zanieb · commit 093564335ada · 2025-03-18T18:03:01.000-05:00
diff --git a/cpython-windows/build.py b/cpython-windows/build.py
@@ -656,7 +656,7 @@ def run_msbuild(
         # Use ClangCL for better build and runtime performance
         # https://github.com/python/cpython/issues/130090
         "/p:PlatformToolset=ClangCL",
-        "/p:AdditionalOptions=-m64",
+        "/p:PreferredToolArchitecture=%s" % platform,
     ]
 
     if freethreaded:

Original file line number	Diff line number	Diff line change
`@@ -656,7 +656,7 @@ def run_msbuild(`
`656`	`656`	`# Use ClangCL for better build and runtime performance`
`657`	`657`	`# https://github.com/python/cpython/issues/130090`
`658`	`658`	`"/p:PlatformToolset=ClangCL",`
`659`		`- "/p:AdditionalOptions=-m64",`
	`659`	`+ "/p:PreferredToolArchitecture=%s" % platform,`
`660`	`660`	`]`
`661`	`661`
`662`	`662`	`if freethreaded:`