diff -r be70d64bbf88 Include/abstract.h
--- a/Include/abstract.h	Fri Dec 02 01:13:46 2016 +0100
+++ b/Include/abstract.h	Fri Dec 02 01:35:10 2016 +0100
@@ -334,14 +334,23 @@ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
         Py_ssize_t nargs,
         PyObject *kwnames);
 
-#define _PyObject_FastCall(func, args, nargs) \
-    _PyObject_FastCallDict((func), (args), (nargs), NULL)
+static inline PyObject*
+_PyObject_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs)
+{
+    return _PyObject_FastCallDict(func, args, nargs, NULL);
+}
 
-#define _PyObject_CallNoArg(func) \
-    _PyObject_FastCall((func), NULL, 0)
+static inline PyObject*
+_PyObject_CallNoArg(PyObject *func)
+{
+    return _PyObject_FastCallDict(func, NULL, 0, NULL);
+}
 
-#define _PyObject_CallArg1(func, arg) \
-    _PyObject_FastCall((func), &(arg), 1)
+static inline PyObject*
+_PyObject_CallArg1(PyObject *func, PyObject *arg)
+{
+    return _PyObject_FastCallDict(func, &arg, 1, NULL);
+}
 
     PyAPI_FUNC(PyObject *) _PyObject_Call_Prepend(PyObject *func,
                                                   PyObject *obj, PyObject *args,
diff -r be70d64bbf88 Modules/_asynciomodule.c
--- a/Modules/_asynciomodule.c	Fri Dec 02 01:13:46 2016 +0100
+++ b/Modules/_asynciomodule.c	Fri Dec 02 01:35:10 2016 +0100
@@ -721,7 +721,7 @@ static PyObject *
 _asyncio_Future__repr_info_impl(FutureObj *self)
 /*[clinic end generated code: output=fa69e901bd176cfb input=f21504d8e2ae1ca2]*/
 {
-    return _PyObject_CallArg1(asyncio_future_repr_info_func, self);
+    return _PyObject_CallArg1(asyncio_future_repr_info_func, (PyObject *)self);
 }
 
 /*[clinic input]
@@ -1536,7 +1536,7 @@ static PyObject *
 _asyncio_Task__repr_info_impl(TaskObj *self)
 /*[clinic end generated code: output=6a490eb66d5ba34b input=3c6d051ed3ddec8b]*/
 {
-    return _PyObject_CallArg1(asyncio_task_repr_info_func, self);
+    return _PyObject_CallArg1(asyncio_task_repr_info_func, (PyObject *)self);
 }
 
 /*[clinic input]
diff -r be70d64bbf88 Modules/gcmodule.c
--- a/Modules/gcmodule.c	Fri Dec 02 01:13:46 2016 +0100
+++ b/Modules/gcmodule.c	Fri Dec 02 01:35:10 2016 +0100
@@ -709,7 +709,7 @@ handle_weakrefs(PyGC_Head *unreachable, 
         assert(callback != NULL);
 
         /* copy-paste of weakrefobject.c's handle_callback() */
-        temp = _PyObject_CallArg1(callback, wr);
+        temp = _PyObject_CallArg1(callback, (PyObject *)wr);
         if (temp == NULL)
             PyErr_WriteUnraisable(callback);
         else
diff -r be70d64bbf88 Objects/genobject.c
--- a/Objects/genobject.c	Fri Dec 02 01:13:46 2016 +0100
+++ b/Objects/genobject.c	Fri Dec 02 01:35:10 2016 +0100
@@ -1341,7 +1341,7 @@ async_gen_init_hooks(PyAsyncGenObject *o
         PyObject *res;
 
         Py_INCREF(firstiter);
-        res = _PyObject_CallArg1(firstiter, o);
+        res = _PyObject_CallArg1(firstiter, (PyObject *)o);
         Py_DECREF(firstiter);
         if (res == NULL) {
             return 1;
diff -r be70d64bbf88 Objects/weakrefobject.c
--- a/Objects/weakrefobject.c	Fri Dec 02 01:13:46 2016 +0100
+++ b/Objects/weakrefobject.c	Fri Dec 02 01:35:10 2016 +0100
@@ -867,7 +867,7 @@ PyWeakref_GetObject(PyObject *ref)
 static void
 handle_callback(PyWeakReference *ref, PyObject *callback)
 {
-    PyObject *cbresult = _PyObject_CallArg1(callback, ref);
+    PyObject *cbresult = _PyObject_CallArg1(callback, (PyObject *)ref);
 
     if (cbresult == NULL)
         PyErr_WriteUnraisable(callback);