Re: jpeg-turbo 6.2 and ppc G3
On Thu, Jul 07, 2016 at 10:52:01AM +0200, Riccardo Mottola wrote:
> Hi,
>
> Gabriel Paubert wrote:
> >>That is garbage in my opinion, given there exists a proper interface
> >>>for getting that info.
> >Seconded, getauxval (not getauxvec!) is simpler, officially supported
> >for a long time, and while the intent is not to modify the format of
> >/proc/cpuinfo in a way that would break existing uses, it is not set
> >in stone. For a start, the /proc/cpuinfo format does not scale well to
> >hundreds or thousands of cores/threads, and you could say the same of
> >other /proc files, like /proc/interrupts.
>
> I wonder if you can have different cores? e.g. how is a Cell
> processor seen in cpuinfo? Just out of curiosity.
The Cell SPU are separate processors, and are a different target
architecture for the compiler.
>
> Anyway, I think the best of two worlds would be to use getauxval()
> when available (most probably any currently supported OS) and fall
> back to cpuinfo if not. A configure test I suppose is quite simple.
You don't always configure/compile on the machine you run. Especially
the people who build distributions.
Gabriel
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