Add new flags for PyType_Ready(): READY to explicitly indicate the
type is ready, and READYING to indicate that it is busy with the type.
A recursive call is a fatal error.
diff --git a/Include/object.h b/Include/object.h
index f6c6ac6..18bc34f 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -414,6 +414,12 @@
/* Set if the type's __dict__ may change */
#define Py_TPFLAGS_DYNAMICTYPE (1L<<11)
+/* Set if the type is 'ready' -- fully initialized */
+#define Py_TPFLAGS_READY (1L<<12)
+
+/* Set while the type is being 'readied', to prevent recursive ready calls */
+#define Py_TPFLAGS_READYING (1L<<13)
+
#define Py_TPFLAGS_DEFAULT ( \
Py_TPFLAGS_HAVE_GETCHARBUFFER | \
Py_TPFLAGS_HAVE_SEQUENCE_IN | \