Liboil: low-level CPU optimization library

Following the dirac thread, i stumbled on "liboil",
a package for optimizing general math and data manipulations.

it's neat because for each basic operation it has several different hand-optimized routines,
and at application startup it runs them, times them, and chooses the fastest.

which is pretty similar to what TGE's Math::init() does,
but looks a bit more extensive.

edit: added link