Gentoo_amd64 linux # autounmask app-misc/beagle-0.3.9-r3

 autounmask version 0.27 (using PortageXS-0.02.09 and portage-2.1.8.3)

 * Using repositories:
     /usr/portage
     /usr/local/portage/layman/sunrise
     /usr/local/portage/layman/x11
     /usr/local/portage/layman/kde
     /usr/local/portage/layman/devnull
     /usr/local/portage

 * Using package.keywords file: /etc/portage/package.keywords/autounmask-beagle
 * Using package.unmask file: /etc/portage/package.unmask/autounmask-beagle
 * Using package.use file: /etc/portage/package.use/autounmask-beagle

 * Unmasking app-misc/beagle-0.3.9-r3 and its dependencies.. this might take a while..

 * done!

Gentoo_amd64 linux # emerge --ignore-default-opts -1pvt app-misc/beagle

These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[ebuild     UD] app-misc/beagle-0.3.9-r2 [0.3.9-r3] USE="doc firefox galago google gtk inotify ole pdf thunderbird xscreensaver -avahi -chm -debug -eds -epiphany" 0 kB [?=>0]

Total: 1 package (1 downgrade), Size of downloads: 0 kB
Portage tree and overlays:
 [0] /usr/portage
 [?] indicates that the source repository could not be determined

!!! The following update has been skipped due to unsatisfied dependencies:

app-misc/beagle:0

emerge: there are no ebuilds to satisfy ">=mail-client/mozilla-thunderbird-1.5".
(dependency required by "app-misc/beagle-0.3.9-r3" [ebuild])