Re: [PATCH] kconfig: fix make oldconfig

From: Linus Torvalds
Date: Fri Aug 06 2010 - 14:10:50 EST

On Fri, Aug 6, 2010 at 10:52 AM, Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
> Hmm, I wonder why you call oldconfig explicitly?
> A plain "make -j16" executes "silentoldconfig" if there
> is any changes in a Kconfig* file or in .config.
> Just double checked and it works as I expected.
> So you are asked if there is any new options anyway even
> if you skip your "oldconfig" step.

Try this:

git clean -dqfx
make -j16 > ../makes

It doesn't work, because "make silentconfig" will say

*** You have not yet configured your kernel!
*** (missing kernel config file ".config")
*** Please run some configurator (e.g. "make oldconfig" or
*** "make menuconfig" or "make xconfig").

which is why I always run "make oldconfig".

Sure, I could do it only when I need to, but quite frankly, it's much
easier to just always do the thing that works, rather than try
something that doesn't work, do something else, and then re-try the
thing that can fail.

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