[pulseaudio-discuss] webrtc: build failures on i386

[Felipe Sateler]

On 1 Jun 2016 12:06 a.m., "Arun Raghavan" <arun at arunraghavan.net> wrote:
>
>
>
> On Fri, 27 May 2016, at 10:07 PM, Rex Dieter wrote:
> > Rex Dieter wrote:
> >
> > > Felipe Sateler wrote:
> > >
> > >>> Is there some reason you can't /build/ with SSE2 support on the
> > >>> compiler? Or were you suggesting that we needed to add  compiler
flags
> > >>> to make this work?
> > >>
> > >> My fear is that enabling SSE2 support globally for the library might
> > >> induce gcc to use SSE2 instructions in its generated code. See the
> > >> -msse section in the gcc manual[1]:
> > >>
> > >>> In particular, the file containing the CPU detection code should be
> > >>> compiled without these options.
> > >>
> > >> So, I think what is needed is to split sse-using functions to a
> > >> separate file and add -msse2 only to that file. However, I am not
very
> > >> confident I understand this very well, so this may not be optimal
> > >> either.
> > >
> > > Ah, sneaky, if that's true, the approach I took in the initial
patches I
> > > posted elsewhere in this thread aren't ideal either.
> > >
> > > I'll go back and see if I can work up something better.
> >
> > OK, this version applies the -msse2 flag only to the source objects that
> > need it, and it at least compiles.  No runtime testing done yet.
> >
> > (I'll do more testing, and followup if I find anything more is needed)
>
> Were you able to test this out? The approach looks okay to me,.

Not yet. My debian workstation broke so I'm waiting for a replacement....

Saludos
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