[flac-dev] FLAC__SSE_OS change

[Erik de Castro Lopo]

lvqcl wrote:

> Thomas Zander wrote:
> 
> > In any case, the disable-SSE matter is still important. People are
> > still using flac on x86 machines without SSE, for instance AMD Geode
> > CPUs seem to live forever.
> 
> libFLAC detects CPU SSE support in runtime, so --disable-sse is
> necessary for cuch CPUs only because it disables -msse2 switch.
> 
> Maybe it makes sense to add new switch, --no-force-sse2 or
> --disable-force-sse2 or similar? And replace
> 
>      if test "x$asm_optimisation$sse_os" = "xyesyes" ; then
>          XIPH_ADD_CFLAGS([-msse2])
>          fi
> 
> with
> 
>      if test "x$force_sse2" = "xyes" ; then
>          XIPH_ADD_CFLAGS([-msse2])
>          fi

No, what is needed is a way to disable SSE at run time even if it has
been compiled in at build time.

Erik
-- 
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Erik de Castro Lopo
http://www.mega-nerd.com/