diff --git a/Include/longobject.h b/Include/longobject.h
index c09565a..dc6a73f 100644
--- a/Include/longobject.h
+++ b/Include/longobject.h
@@ -80,6 +80,7 @@
 PyAPI_FUNC(PyObject *) PyLong_FromString(char *, char **, int);
 #ifndef Py_LIMITED_API
 PyAPI_FUNC(PyObject *) PyLong_FromUnicode(Py_UNICODE*, Py_ssize_t, int);
+PyAPI_FUNC(PyObject *) PyLong_FromUnicodeObject(PyObject *u, int base);
 #endif
 
 #ifndef Py_LIMITED_API
@@ -155,8 +156,9 @@
 /* Format the object based on the format_spec, as defined in PEP 3101
    (Advanced String Formatting). */
 PyAPI_FUNC(PyObject *) _PyLong_FormatAdvanced(PyObject *obj,
-					      Py_UNICODE *format_spec,
-					      Py_ssize_t format_spec_len);
+					      PyObject *format_spec,
+					      Py_ssize_t start,
+					      Py_ssize_t end);
 #endif /* Py_LIMITED_API */
 
 /* These aren't really part of the long object, but they're handy. The