[Buildroot] [PATCH 2/2] infra/pkg-kconfig: do not rebuild kconfig packages again and again

[Yann E. MORIN <yann.morin.1998@free.fr>]

Thomas, All,

On 2014-08-04 19:32 +0200, Thomas De Schampheleire spake thusly:
> "Yann E. MORIN" <yann.morin.1998@free.fr> schreef:
> >When a kconfig-based package executes its confiigure step, it may
> configure
> 
> >overwrite it .config file. Thus, the .config file is more recent than
> its
> 
> >our stamp file .stamp_kconfig_fixup_done. On a subsequent build, out
> our
> 
> >dependency rules would kick in, and run the config fixup again, thus
> >kikcing in the package's configure, build and isntall steps yet once
> kicking
> install

OK, fixed.

> >more, that, ad libitum.
> You mean 'ad infinitum' ?

Yep, that fits better, indeed. Ad nauseam fits, too... :-]
Will change, thanks.

> >Fix that by introducing a post-configure hook that re-touches our stamp
> >file, so it is always more recent than the .config.
> 
> Could you share an example of which package does what type of change to the .config?

Yep. Busybox. It calls 'make oldconfig' in its configure commands, thus
overwritting its .config.

Regards,
Yann E. MORIN.

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