Am Sat, 24 Aug 2013 05:43:39 -0700
schrieb Grant <emailgrant@gmail.com>:

[...]
> >> If I keyword gvfs I get into trouble because gobject-introspection
> >> wants <dev-libs/glib-2.33 and gvfs wants >=dev-libs/glib-2.36.
> >>
> >
> > So?
> >
> > Obviously I meant to say 'keyword gvfs *and it's dependencies* from ~arch if
> > you want to use USE="udev udisks"'
> 
> The above glib dependencies are circular.  There is no way to satisfy them both.
> 
> - Grant

Samuli means this:

$ grep dev-libs/glib /usr/portage/dev-libs/gobject-introspection/*.ebuild 
/usr/portage/dev-libs/gobject-introspection/gobject-introspection-1.32.1.ebuild:	>=dev-libs/glib-2.31.22:2
/usr/portage/dev-libs/gobject-introspection/gobject-introspection-1.32.1.ebuild:	<dev-libs/glib-2.33:2
/usr/portage/dev-libs/gobject-introspection/gobject-introspection-1.34.2-r1.ebuild:	>=dev-libs/glib-2.34.1:2
/usr/portage/dev-libs/gobject-introspection/gobject-introspection-1.36.0.ebuild:	>=dev-libs/glib-2.36:2

So you need >=gobject-introspection-1.34.2 to satisfy the dependencies.

HTH
-- 
Marc Joliet
--
"People who think they know everything really annoy those of us who know we
don't" - Bjarne Stroustrup