[U-Boot] [PATCH v3 2/4] build/mkconfig: Add EXTRA_OPTS argument to make to modify build

[Wolfgang Denk]

Dear McClintock Matthew-B29882,

In message <BANLkTiknz2xgLw=w-FynuZo=X6AY-pUdpA at mail.gmail.com> you wrote:
>
> How do I make a new build configuration without making changes to
> boards.cfg or the Makefile? I could add a new entry there for every
> bootstrap build but I was trying and hoping to avoid this. For example
> for every build I could need the following
> 
> BOARD_NAND
> BOARD_NAND_IN_BOOTSTRAP
> BOARD_SPIFLASH
> BOARD_SPIFLASH_IN_BOOTSTRAP
> BOARD_SDCARD
> BOARD_SDCARD_IN_BOOTSTRAP

Are these independent targets?  I think you don't run a
"./MAKEALL BOARD_SDCARD_IN_BOOTSTRAP" alone, right?

You can set all types of make variable sinternally during different
stages of the build, like we already do with the nand_spl code.

I have to admit that I don't even understand why you would need
separate top-level FOO and FOO_IN_BOOTSTRAP make targets.  Please
elucidate.

Best regards,

Wolfgang Denk

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