emerge -uDNavt unity-meta

 * IMPORTANT: 4 news items need reading for repository 'unity-gentoo'.
 * IMPORTANT: 13 news items need reading for repository 'gentoo'.
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These are the packages that would be merged, in reverse order:

Calculating dependencies... done!

!!! The ebuild selected to satisfy "app-crypt/pinentry" has unmet requirements.
- app-crypt/pinentry-1.0.0::gentoo USE="gnome-keyring gtk ncurses qt4 qt5 -caps -emacs -static" ABI_X86="(64)"

  The following REQUIRED_USE flag constraints are unsatisfied:
    at-most-one-of ( qt4 qt5 )

  The above constraints are a subset of the following complete expression:
    any-of ( ncurses gtk qt4 qt5 ) gtk? ( !static ) qt4? ( !static ) qt5? ( !static ) static? ( ncurses ) at-most-one-of ( qt4 qt5 )

(dependency required by "app-crypt/gnupg-2.1.21-r1::gentoo" [ebuild])
(dependency required by "app-crypt/seahorse-3.20.0::gentoo" [ebuild])
(dependency required by "gnome-base/gnome-core-apps-3.22::unity-gentoo" [ebuild])
(dependency required by "unity-base/unity-meta-17.04::unity-gentoo[gnome]" [ebuild])
(dependency required by "unity-meta" [argument])
(chroot) livecd / # nano /etc/portage/make.conf
(chroot) livecd / # emerge --backtrack=30 -uDNvta unity-meta

 * IMPORTANT: 4 news items need reading for repository 'unity-gentoo'.
 * IMPORTANT: 13 news items need reading for repository 'gentoo'.
 * Use eselect news read to view new items.


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

Calculating dependencies... done!

!!! The ebuild selected to satisfy "app-crypt/pinentry[gnome-keyring]" has unmet requirements.
- app-crypt/pinentry-1.0.0::gentoo USE="gnome-keyring gtk ncurses qt4 qt5 -caps -emacs -static" ABI_X86="(64)"

  The following REQUIRED_USE flag constraints are unsatisfied:
    at-most-one-of ( qt4 qt5 )

  The above constraints are a subset of the following complete expression:
    any-of ( ncurses gtk qt4 qt5 ) gtk? ( !static ) qt4? ( !static ) qt5? ( !static ) static? ( ncurses ) at-most-one-of ( qt4 qt5 )

(dependency required by "gnome-base/gnome-keyring-3.20.1::gentoo" [ebuild])
(dependency required by "sys-auth/pambase-20150213-r1::unity-gentoo[gnome-keyring]" [ebuild])
(dependency required by "sys-libs/pam-1.3.0::gentoo" [ebuild])
(dependency required by "sys-apps/util-linux-2.30::gentoo[pam]" [installed])
(dependency required by "x11-libs/libSM-1.2.2-r1::gentoo[uuid]" [installed])
(dependency required by "x11-libs/libXt-1.1.5::gentoo" [installed])
(dependency required by "dev-lang/tk-8.6.6::gentoo" [installed])
(dependency required by "dev-lang/python-2.7.13::gentoo[tk]" [installed])
(dependency required by "dev-libs/libxslt-1.1.29-r1::gentoo[python,python_targets_python2_7]" [ebuild])
(dependency required by "x11-libs/libxcb-1.12-r2::gentoo" [installed])
(dependency required by "x11-libs/libX11-1.6.5::gentoo" [installed])
(dependency required by "x11-libs/libXext-1.3.3::gentoo" [installed])
(dependency required by "x11-libs/libXft-2.3.2::gentoo" [installed])