I've had really bad luck with buildroot lately. It seems to have passed some sort of event horizon of mass, and it is really easy to drive yourself into corner to the point that you have a broken build, a broken bulid system, nothing compiles, and nothing works -- and your every attempt at reconfiguration only makes it worse. I am not sure what the future of buildroot will be.
So, I am happy that buildrom can do what it does.
ron