thanks a lot rtcm !
unfortunately the ebuilds seem to disagree:
emerge: there are no ebuilds built with USE flags to satisfy "x11-libs/cairo[glitz]".
!!! One of the following packages is required to complete your request:
- x11-libs/cairo-1.8.6-r1 (Change USE: +glitz)
(dependency required by "x11-plugins/compiz-plugins-extra-0.8.2" [ebuild])
(dependency required by "@compiz-fusion" [argument])
anyone has compiz(-fusion) with glitz-disabled cairo running here ?