On Tue, Oct 08, 2013 at 11:05:04PM +0200, Ludovic Courtès wrote: > Andreas Enge <andr...@enge.fr> skribis: > > Also, the build uses > > sse/sse2/... instructions according to what is available on the > > processor; we might wish to disable all or at least the most advanced > > of them in the long run. > If it’s a matter of adding the right configure flag, I’d do it before > it bites.
The following will leave out any special instructions, as far as I can see: + "-no-sse2" + "-no-sse3" + "-no-ssse3" + "-no-sse4.1" + "-no-sse4.2" + "-no-avx" + "-no-avx2" + "-no-neon" + "-no-mips_dsp" + "-no-mips_dspr2")))) I do not know how much this slows down qt applications. According to wikipedia, sse2 arrived in 2001. So one could argue that adding it would exclude almost no machines. Andreas