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

[Yann E. MORIN]

Hello All,

On Monday 07 January 2013 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.
> 
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at 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
> +
>  # Pull in the user's configuration file
>  ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
>  -include $(CONFIG_DIR)/.config

There are a few other places in this file where we use:
    $(CONFIG_DIR)/.config

I was not sure how to handle these, especially since they are associated
with:
    $(CONFIG_DIR)/.config.nopkg

Using $(BR2_CONFIG_FILE).nopkg looks a bit ugly to me. Instead, I went to
reason that we're in the top-level Makefile, and that we know what we're
doing. BR2_CONFIG_FILE is our /API/ and although it would be nice to use
it internally too, it does not fit properly, so I did not change it.

Comments welcome. ;-)

Regards,
Yann E. MORIN.

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