[U-Boot] [PATCH 1/2 v4] env: only build env_embedded and envcrc when needed

[Wolfgang Denk <wd@denx.de>]

Dear Mike Frysinger,

In message <200910182055.01744.vapier@gentoo.org> you wrote:
>
> > This patch seems to break a *lot* of boards:
>
> i'm attaching two patches here.  since we're past the merge window but before
> rc1, i dont know how invasive you want to get.
>
> the first one restores env_embedded.o building for certain config options
> (even though it'll only produce a 0 byte file).  if you want to be cautious
> for this release, then i guess we can merge just this patch.
>
> the second one attempts to clean up env_embedded.o in all linker scripts where
> the board would only end up with a 0 byte file.  obviously i cant test any of
> these since i dont have the hardware, but the logic seems straight forward.
> if you want to stay cautious, this would go into the next branch for start of
> next merge window.
>
> or just merge the 2nd patch only and assume that people who dont test the rc1+
> are dead boards anyways.  i got some build errors even after these fixes, but
> they seem unrelated to my env_embedded changes as they have to do with
> sections filling up & overflowing with my gcc-4.1.1 compiler.
> -mike

Applied patch #2, after testing on lwmon.

Thanks.

Best regards,

Wolfgang Denk

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