Issue #16841: Set st_dev on Windows as unsigned long to match its DWORD type.
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index e53e76c..bd483fa 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -1951,7 +1951,9 @@
 #else
     PyStructSequence_SET_ITEM(v, 1, PyLong_FromLong((long)st->st_ino));
 #endif
-#if defined(HAVE_LONG_LONG) && !defined(MS_WINDOWS)
+#ifdef MS_WINDOWS
+    PyStructSequence_SET_ITEM(v, 2, PyLong_FromUnsignedLong(st->st_dev));
+#elif defined(HAVE_LONG_LONG)
     PyStructSequence_SET_ITEM(v, 2,
                               PyLong_FromLongLong((PY_LONG_LONG)st->st_dev));
 #else