--- a/Include/object.h	2020-10-05 17:07:58.000000000 +0200
+++ b/Include/object.h	2020-10-06 12:08:17.444833331 +0200
@@ -150,7 +150,7 @@ static inline int Py_IS_TYPE(PyObject *ob, PyTypeObject *type) {
     return Py_TYPE(ob) == type;
 }
 #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
-#  define Py_IS_TYPE(ob, type) Py_IS_TYPE(_PyObject_CAST(ob), type)
+#  define Py_IS_TYPE(ob, type) (Py_IS_TYPE(_PyObject_CAST(ob), type))
 #endif
 
 
@@ -772,7 +772,7 @@ PyType_HasFeature(PyTypeObject *type, unsigned long feature)
     return ((flags & feature) != 0);
 }
 
-#define PyType_FastSubclass(type, flag) PyType_HasFeature(type, flag)
+#define PyType_FastSubclass(type, flag) (PyType_HasFeature(type, flag))
 
 static inline int PyType_Check(PyObject *op) {
     return PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TYPE_SUBCLASS);

.