[Buildroot] [PATCH 1/3] Makefile: export BR2_CONFIG_FILE, pointing to our .config

[Arnout Vandecappelle <arnout@mind.be>]

  Hi Yann,

On 07/01/13 22:52, Yann E. MORIN wrote:
> Support scripts (in support/) may need to parse the .config file,
> so give them an easy access to it, by exporting CONFIG_FILE with
> the fully-qualified path to .config.

  Good idea!

>
> Signed-off-by: "Yann E. MORIN"<yann.morin.1998@free.fr>
> ---
>   Makefile |    4 ++++
>   1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index 4b09437..7a2902d 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -91,6 +91,10 @@ EXTRAMAKEARGS = O=$(O)
>   NEED_WRAPPER=y
>   endif
>
> +# Scripts in support/ may need to parse out .config, so give
> +# them easy access
> +export BR2_CONFIG_FILE=$(CONFIG_DIR)/.config.

  Convention is that BR2_* is set by Kconfig. I kind of like that, it 
helps us developers to understand a variable's meaning.

  [Yes, BR2_DEFCONFIG which I introduced myself is an exception. However, 
I have a pending patch that moves it into the .config :-)]

> +
>   # Pull in the user's configuration file
>   ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
>   -include $(CONFIG_DIR)/.config

  I would replace the occurences of the plain config file with 
$(CONFIG_FILE). $(CONFIG_FILE).nopkg does indeed look stupid, so that one 
should be left alone.

  Regards,
  Arnout

-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
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