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Re: Help to build library in generic form, avx and sse3



On 2017-03-14 15:46 +0100, Andreas Tille wrote:
> Hi,
> 
> I've started packaging Phylogenetic Likelihood Library[1].  Since it
> makes heavy use of amd64 features it comes with specific support of AVX
> and SSE3.  My plan is to provide binary packages amd64 only named
> libpll-avx1 and libpll-sse3-1 with the according features plus a generic
> library libpll-generic1 for all architectures.  

>   2. What do you think about the plan to support specific hardware
>      features in separate binary packages?

It's OK, but short-changes other arches unless you do one with neon
enabled for armhf, or altivec for powerpc. It's much better to build
one version for each arch that can dynamically use available HWCAPS,
but of course that's tricky if upstream doesn't support it.

Wookey
-- 
Principal hats:  Linaro, Debian, Wookware, ARM
http://wookware.org/

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