[U-Boot] [PATCH] config.mk: use memoization in cc-option macro to speed up compilation

[Wolfgang Denk]

Dear Daniel Schwierzeck,

In message <4EB1B7DD.40704 at googlemail.com> you wrote:
> 
> The patch is still experimental. But I will move that file to 
> include/generated in the final version.

Indeed, please do.

> To see the difference between compilation times with and without this 
> optimization and to do not break existing code. In the final version I 
> would remove the config switch and enable the optimization by default ;)

Looking forward to seeing this final version soon :-)

Thanks!!

Best regards,

Wolfgang Denk

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