[Buildroot] using a variable within a buildroot menuconfig

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Tue Jun 25 19:41:05 UTC 2013

Dear Jan Pohanka,

On Tue, 25 Jun 2013 09:58:00 +0200, Jan Pohanka wrote:

> I have another /weird/ question.
> I would like to know if it is possible to create an item in 
> configuration which will for example contain some (absolute) path on my 
> filesystem. Then I would like to use this variable for example in 
> --extra-cflags configure option for applications like ffmpeg etc.
> I know that it is not very nice way, but I need to integrate buildroot 
> with Texas Instruments SDK, which is not very GNU build tools friendy.

I'm not sure to really understand what you want to do here. You can
always create string options:

config BR2_SOME_PATH
	default "/path/to/somewhere/"

and then in some .mk file, you can use:


to refer to still variable, or:

	$(call qstrip,$(BR2_SOME_PATH))

if you want to get rid of the quotes around the variable value.

Does this answer your questions?

Best regards,

Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.

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