[3.13] gh-127906: Fix Py_BUILD_ASSERT_EXPR() on Windows (#127994)

gh-127906: Fix Py_BUILD_ASSERT_EXPR() on Windows

Change Py_BUILD_ASSERT_EXPR implementation on Windows to avoid a
compiler warning about an unnamed structure.

diff --git a/Include/pymacro.h b/Include/pymacro.h
index e3e9cd13594814e2fd38ea31885a9f371c19a616..e0378f9d27a048c26b87fe4b3ae3869aaae5cc9b 100644 (file)
--- a/Include/pymacro.h
+++ b/Include/pymacro.h
@@ -47,7 +47,7 @@
 #define Py_CHARMASK(c) ((unsigned char)((c) & 0xff))
 
 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \
-     && !defined(__cplusplus))
+     && !defined(__cplusplus) && !defined(_MSC_VER))
 #  define Py_BUILD_ASSERT_EXPR(cond) \
     ((void)sizeof(struct { int dummy; _Static_assert(cond, #cond); }), \
      0)