Hi,

The attached patch was backported from trunk.

commit 13d478244d380d1564eefc204201b7f681218ce3
Author: jnorris <jnorris@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Fri Oct 9 12:35:58 2015 +0000

         * config/rs6000/rs6000.c (rs6000_offload_options): New.
         (TARGET_OFFLOAD_OPTIONS): New.


Jim