Please add the corresponding USE flag dependency on USE=pulseaudio, otherwise the following error appears while configuring: checking for PULSEAUDIO... no configure: error: PulseAudio support explicitly requested but dependencies not found
+ 29 Jul 2010; Pacho Ramos <pacho@gentoo.org> gnome-media-2.30.0-r1.ebuild: + media-sound/pulseaudio needs to be built with glib support as reported by + Christian Faulhammer in bug #330365. Thanks for reporting