Change the type of the tp_free from 'destructor' to 'freefunc'.
diff --git a/Include/object.h b/Include/object.h
index a85905f..a742fd8 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -199,6 +199,7 @@
} PyBufferProcs;
+typedef void (*freefunc)(void *);
typedef void (*destructor)(PyObject *);
typedef int (*printfunc)(PyObject *, FILE *, int);
typedef PyObject *(*getattrfunc)(PyObject *, char *);
@@ -284,7 +285,7 @@
initproc tp_init;
allocfunc tp_alloc;
newfunc tp_new;
- destructor tp_free; /* Low-level free-memory routine */
+ freefunc tp_free; /* Low-level free-memory routine */
inquiry tp_is_gc; /* For PyObject_IS_GC */
PyObject *tp_bases;
PyObject *tp_mro; /* method resolution order */