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From: Russell King - ARM Linux on 16 Jul 2010 14:10
On Fri, Jul 16, 2010 at 11:57:55AM -0600, Grant Likely wrote:
> Last missing piece is being able to do "select FOO = n", which Stephen
> is currently working on.

I thought Linus' idea was to use:

KBUILD_KCONFIG=file make allnoconfig

in which case any option which would be presented to the user which hasn't
been selected by 'file' ends up being set to n. That means there's no
need for a special "select FOO=n" construct.

See one of Linus' replies on June 3:
Message-ID: <alpine.LFD.2.00.1006031317410.8175(a)i5.linux-foundation.org>

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From: Russell King - ARM Linux on 16 Jul 2010 14:40
On Fri, Jul 16, 2010 at 02:19:31PM -0400, Nicolas Pitre wrote:
> For example, if I want CONFIG_MTD_CMDLINE_PARTS=y, the system may be
> smart enough to notice and automatically enable CONFIG_MTD and
> CONFIG_MTD_PARTITIONS without having to carry those in the defconfig.

How do you sort out something like this:

config FOO
bool "Foo"
depends on (A && B) || C

Do you enable A and B, A, B and C or just C?

Bear in mind that A could be 'X86', 'M68K' or any other arch specific
symbol.

I prefer the warning method because it prompts you to investigate what's
changed and sort out the problem by ensuring that the appropriate symbols
are also selected. The automatic selection of dependencies method carries
the risk that it'll do the wrong thing with the above scenario.
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