# emerge -pv kde-plasma/plasma-meta

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

Calculating dependencies  . ..... done!
[ebuild  N     ] kde-plasma/powerdevil-5.7.5:5::gentoo  USE="handbook wireless -debug -systemd" 0 KiB
[ebuild  N     ] kde-plasma/plasma-nm-5.7.5:5::gentoo  USE="-debug -modemmanager -openconnect -teamd" 0 KiB
[ebuild  N     ] kde-plasma/plasma-desktop-5.7.5:5::gentoo  USE="fontconfig handbook pulseaudio qt4 -debug -gtk2 -gtk3 -ibus -legacy-systray (-packagekit) -scim {-test}" INPUT_DEVICES="evdev -synaptics" 0 KiB
[ebuild  N     ] kde-plasma/kmenuedit-5.7.5:5::gentoo  USE="handbook hotkeys -debug" 0 KiB
[ebuild  N     ] kde-plasma/plasma-meta-5.7.5:5::gentoo  USE="bluetooth display-manager grub gtk handbook mediacenter networkmanager pam plymouth pulseaudio sddm sdk wallpapers" 0 KiB
[blocks B      ] kde-apps/kdepasswd:4 ("kde-apps/kdepasswd:4" is blocking kde-plasma/plasma-desktop-5.7.5)

Total: 5 packages (5 new), Size of downloads: 0 KiB
Conflict: 1 block (1 unsatisfied)

 * Error: The above package list contains packages which cannot be
 * installed at the same time on the same system.

  (kde-plasma/plasma-desktop-5.7.5:5/5::gentoo, ebuild scheduled for merge) pulled in by
    >=kde-plasma/plasma-desktop-5.7.5:5 required by (kde-plasma/plasma-meta-5.7.5:5/5::gentoo, ebuild scheduled for merge)

  (kde-apps/kdepasswd-16.04.3:4/16.04::gentoo, installed) pulled in by
    >=kde-apps/kdepasswd-4.11.22:4[aqua=] (>=kde-apps/kdepasswd-4.11.22:4[-aqua]) required by (kde-base/kdm-4.11.22:4/4.11::gentoo, installed)


For more information about Blocked Packages, please refer to the following
section of the Gentoo Linux x86 Handbook (architecture is irrelevant):

https://wiki.gentoo.org/wiki/Handbook:X86/Working/Portage#Blocked_packages