i686 SSE support required?

Richard Shaw <hobbe...@...>

I have a reviewer for getting OCIO in Fedora and he raised a question
I don't really know the answer to.

It appears that the cmake configuration assumes SSE support even on
i686 which includes processors without SSE support.

If someone could review his comments[1] and let me know if disabling
SSE for i686 builds is appropriate I'd appreciate it.


[1] https://bugzilla.redhat.com/show_bug.cgi?id=814804#c7