[Buildroot] [PATCH 2/2] support/kconfig: add support for olddefconfig

[Gustavo Zacarias]

On 04/04/2013 06:24 PM, Thomas Petazzoni wrote:

> olddefconfig is a new target available in kconfig that allows to take
> an old .config file, and update it to the latest version of the code,
> without being asked for questions: it automatically assumes the
> default value for options whose value was not defined.
> 
> It for example allows to take a minimal defconfig, copy it as .config,
> and do 'make olddefconfig' to get the full .config.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>

Acked-by: Gustavo Zacarias <gustavo at zacarias.com.ar>
Tested-by: Gustavo Zacarias <gustavo at zacarias.com.ar>