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

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).


The following USE changes are necessary to proceed:
 (see "package.use" in the portage(5) man page for more details)
# required by gnome-extra/sushi-46.0::gentoo
# required by =gnome-extra/sushi-46.0 (argument)
>=app-text/evince-48.4 introspection
# required by gnome-extra/sushi-46.0::gentoo
# required by =gnome-extra/sushi-46.0 (argument)
>=x11-libs/gdk-pixbuf-2.44.8 introspection
# required by gnome-extra/sushi-46.0::gentoo
# required by =gnome-extra/sushi-46.0 (argument)
>=media-libs/gstreamer-1.26.11 introspection
# required by gnome-extra/sushi-46.0::gentoo
# required by =gnome-extra/sushi-46.0 (argument)
>=media-libs/gst-plugins-base-1.26.11 introspection
# required by gnome-extra/sushi-46.0::gentoo
# required by =gnome-extra/sushi-46.0 (argument)
>=x11-libs/gtk+-3.24.52 introspection
# required by gnome-extra/sushi-46.0::gentoo
# required by =gnome-extra/sushi-46.0 (argument)
>=x11-libs/gtksourceview-4.8.4-r2 introspection

!!! The ebuild selected to satisfy "media-libs/gexiv2:0.16/4" has unmet requirements.
- media-libs/gexiv2-0.16.2::gentoo USE="python -gtk-doc -introspection -test -vala" PYTHON_TARGETS="python3_14 -python3_12 -python3_13"

  The following REQUIRED_USE flag constraints are unsatisfied:
    python? ( introspection )

  The above constraints are a subset of the following complete expression:
    python? ( introspection any-of ( python_targets_python3_12 python_targets_python3_13 python_targets_python3_14 ) ) test? ( python introspection ) vala? ( introspection )

(dependency required by "gnome-base/nautilus-50.3.1::gentoo" [ebuild])
(dependency required by "gnome-extra/sushi-46.0::gentoo" [ebuild])
(dependency required by "=gnome-extra/sushi-46.0" [argument])