On Wed, Dec 04, 2019 at 01:21:06PM +1300, Joseph Heled wrote: > Is that the right way to specify both? > > ./configure --enable-simd=avx --enable-simd=sse2
It wasn't expected to specify both :-). I just checked what it does: the second option overrides the first one, so your example doesn't do what you hoped. Just use --enable-simd=yes, it will use avx if your computer supports it (plus some sse in places where there is no avx implementation), else sse2.
