changing environment at build time

[Alessandro Rubini]

I wrote:
> Since uncompressed environent areas are not supported any more, what is
> the preferred method to change the default environment variables?

Actually, by removing compressing code the environment is uncompressed
itself, but it looks like I have other problems that are not yet
completely clear to me.

I'm still curious about how to change mac address at flash time, but
the question is not urgent any more. Sorry for disturbing

/alessandro