In the alsamixergui ebuild, you have: DEPEND=">=media-sound/alsa-driver-0.9.0_rc1 >=media-sound/alsa-lib-0.9.0_rc1 >=media-sound/alsa-utils-0.9.0_rc1 >=x11-libs/fltk-1.1.0_rc6" The alsa-lib line is wrong. It should be >=media-libs/alsa-lib-0.9.0_rc1 It appears that the alsa-lib ebuild was moved from media-sound to media-libs sometime recently.
fixed in cvs