diff -N -ru -x '*.pyc' src/Python-3.6.0b1/Modules/_ctypes/_ctypes.c python-3.6.0.177/Modules/_ctypes/_ctypes.c
--- src/Python-3.6.0b1/Modules/_ctypes/_ctypes.c	2016-09-12 16:22:33 +0000
+++ python-3.6.0.177/Modules/_ctypes/_ctypes.c	2016-10-04 19:50:16 +0000
@@ -5497,6 +5497,12 @@
 
     PyModule_AddObject(m, "RTLD_LOCAL", PyLong_FromLong(RTLD_LOCAL));
     PyModule_AddObject(m, "RTLD_GLOBAL", PyLong_FromLong(RTLD_GLOBAL));
+#ifdef RTLD_MEMBER
+/*
+ * to add support for AIX shared_members stored in .a archives
+ */
+    PyModule_AddObject(m, "RTLD_MEMBER", PyLong_FromLong(RTLD_MEMBER));
+#endif
 
     PyExc_ArgError = PyErr_NewException("ctypes.ArgumentError", NULL, NULL);
     if (PyExc_ArgError) {