Undefine the Yield macro after including Python_ast.h where it may cause conflicts with winbase.h on Windows.
diff --git a/Python/import.c b/Python/import.c
index 291e63d..b35dea1 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -4,6 +4,8 @@
#include "Python.h"
#include "Python-ast.h"
+#undef Yield /* to avoid conflict with winbase.h */
+
#include "pyarena.h"
#include "pythonrun.h"
#include "errcode.h"
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 75241fe..d434d50 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -4,6 +4,8 @@
#include "Python.h"
#include "Python-ast.h"
+#undef Yield /* to avoid conflict with winbase.h */
+
#include "grammar.h"
#include "node.h"
#include "token.h"