gcc and xgetbv

[Vincent Habchi]

On 25 janv. 2013, at 16:30, Rainer Müller <raimue at macports.org> wrote:

> This will still become a problem if we are going to distribute this
> software as a pre-compiled binary, as the machine running the buildbot
> might have support for AVX instructions while the end-user might not
> have that.

This is already the case with Qt4-Mac, though it has gone unnoticed. The configuration procedure of Qt4 auto-detects SSE/AVX support. At least it says it does, but whether the build process makes use of AVX instructions later remains to me a mystery.

Vincent