This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
The warning doesn't mean you need to recompile it. It's just a hint that if you recompile with these options, you see why this warning is being shown. Since you're using legacy code it's probably something with raw types.