On Thursday, 3 May 2018 18:00:45 BST Corbin Bird wrote:
> .
> Chromium switched to 'clang++ v5.x' as its primary compiler.
> Why?
> The Chromium devs are using 'c++' features supported in gcc v8+.
> .
> So ... first compile run is with 'gcc' ... then Chromium is re-compiled
> with 'clang++'.
> That is what I am seeing ( console && log wise ).
> 2 Compile runs ... twice the time.
> .
> No gold linker setup on my system.
> Just how is 'clang++' supposed to work with 'ld.bfd'?
> .
> As far as I can tell, all optimization depending on '-march= / -mtune= '
> is still discarded, as well.
> ( clang / clang ++, does not seem to accept the '-march= / -mtune= / -O2
> / -pipe' switches either. )
> .
> Corbin

Thanks Corbin, it makes sense.  Back in November build time jumped from 8 to 
20 hours on my system.  It's only gone further downhill since.  :-(

I will give USE="jumbo-build" a spin later to see what improvement I may get.

-- 
Regards,
Mick

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