[U-Boot] [PATCH 1/2 v3] env: only build env_embedded and envcrc when needed

[Wolfgang Denk]

Dear Mike Frysinger,

In message <1252511443-1638-1-git-send-email-vapier at gentoo.org> you wrote:
> The env code is protected by the ENV_IS_EMBEDDED define, so attempting to
> compile the code when this isn't defined is pointless.  Now that the env
> headers have unified around CONFIG_ENV_IS_EMBEDDED, convert the build
> system to only build the env objects when this is enabled.  And now that
> the env code is conditionally compiled, we can drop the source code checks.
> 
> For people who want to extract the environment manually, add a new option
> that only enables the envcrc utility (CONFIG_ENV_IS_EMBEDDED_CUSTOM).

I see no users, and I hesitate to add dead code.

And CONFIG_ENV_IS_EMBEDDED_CUSTOM is an ugly and misleading name.

Best regards,

Wolfgang Denk

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