[U-Boot] [PATCH] Reduce build times

[Daniel Schwierzeck]

Hi Wolfgang,

On Wed, Nov 2, 2011 at 7:54 AM, Wolfgang Denk <wd at denx.de> wrote:
> U-Boot Makefiles contain a number of tests for compiler features etc.
> which so far are executed again and again.  On some architectures
> (especially ARM) this results in a large number of calls to gcc.
>
> This patch makes sure to run such tests only once, thus largely
> reducing the number of "execve" system calls.
>

maybe you want to try this experimental patch.
http://patchwork.ozlabs.org/patch/123313/

It significantly reduces the count of gcc calls by caching the results.
This also improves compilation times.

Best regards,
Daniel