(chroot) hal3 ~ # equery u x11-drivers/xf86-video-virtualbox
[ Legend : U - final flag setting for installation]
[        : I - package is installed with flag     ]
[ Colors : set, unset                             ]
 * Found these USE flags for x11-drivers/xf86-video-virtualbox-4.3.32:
 U I
 + + dri                      : Enable direct rendering: used for accelerated
                                3D and some 2D, like DMA
 + + python_targets_python2_7 : Build with Python 2.7