Merge branches/pep-0384.
diff --git a/Include/codecs.h b/Include/codecs.h
index 4ea934e..dff09e7 100644
--- a/Include/codecs.h
+++ b/Include/codecs.h
@@ -45,9 +45,11 @@
 
  */
 
+#ifndef Py_LIMITED_API
 PyAPI_FUNC(PyObject *) _PyCodec_Lookup(
        const char *encoding
        );
+#endif
 
 /* Codec registry encoding check API.