!   app-crypt/gnupg
    Reasons: !app-crypt/gnupg from app-crypt/gnupg, app-crypt/gpgme, kde-base/kdelibs
    Unsuitable candidates:
      * app-crypt/gnupg-1.4.11:0::gentoo
        Did not meet >=app-crypt/gnupg-2.0.11, use existing if possible, installing to / from kde-base/kdelibs
        Did not meet !app-crypt/gnupg, use existing if possible, installing to / from !app-crypt/gnupg from app-crypt/gnupg
      * app-crypt/gnupg-2.0.16-r1:0::gentoo
        Did not meet !app-crypt/gnupg, use existing if possible, installing to / from !app-crypt/gnupg from app-crypt/gnupg
      * app-crypt/gnupg-2.0.16-r2:0::gentoo
        Did not meet !app-crypt/gnupg, use existing if possible, installing to / from !app-crypt/gnupg from app-crypt/gnupg
      * app-crypt/gnupg-2.0.17:0::gentoo
        Did not meet !app-crypt/gnupg, use existing if possible, installing to / from !app-crypt/gnupg from app-crypt/gnupg
!   sys-fs/cryptsetup
    Reasons: !<sys-fs/cryptsetup-1.1.2 from sys-fs/lvm2, !sys-fs/cryptsetup from sys-fs/cryptsetup
    Unsuitable candidates:
      * sys-fs/cryptsetup-1.0.6-r2:0::gentoo
        Did not meet !<sys-fs/cryptsetup-1.1.2, use existing if possible, installing to / from !<sys-fs/cryptsetup-1.1.2 from sys-fs/lvm2
        Did not meet !sys-fs/cryptsetup, use existing if possible, installing to / from !sys-fs/cryptsetup from sys-fs/cryptsetup
      * sys-fs/cryptsetup-1.1.2:0::gentoo
        Did not meet !sys-fs/cryptsetup, use existing if possible, installing to / from !sys-fs/cryptsetup from sys-fs/cryptsetup
      * sys-fs/cryptsetup-1.1.3-r1:0::ikelos
        Did not meet !sys-fs/cryptsetup, use existing if possible, installing to / from !sys-fs/cryptsetup from sys-fs/cryptsetup
      * sys-fs/cryptsetup-1.1.3-r3:0::gentoo
        Did not meet !sys-fs/cryptsetup, use existing if possible, installing to / from !sys-fs/cryptsetup from sys-fs/cryptsetup
      * sys-fs/cryptsetup-1.2.0-r1:0::gentoo
        Did not meet !sys-fs/cryptsetup, use existing if possible, installing to / from !sys-fs/cryptsetup from sys-fs/cryptsetup
      * sys-fs/cryptsetup-1.2.0-r1:0::ikelos
        Did not meet !sys-fs/cryptsetup, use existing if possible, installing to / from !sys-fs/cryptsetup from sys-fs/cryptsetup

Explaining requested decisions:

For app-crypt/gnupg:0::(install_to_slash):
    The following constraints were in action:
      * >=app-crypt/gnupg-2.0.11, use existing if possible, installing to /
        Because of >=app-crypt/gnupg-2.0.11 from kde-base/kdelibs-4.6.0-r1:4.6::installed, key 'Run dependencies', labelled 'RDEPEND'
      * !app-crypt/gnupg, use existing if possible, installing to /
        Because of !app-crypt/gnupg from app-crypt/gnupg-2.0.17:0::installed
      * !app-crypt/gnupg, use existing if possible, installing to /
        Because of !app-crypt/gnupg from app-crypt/gnupg-2.0.17:0::installed
      * app-crypt/gnupg, use existing if possible, installing to /
        Because of app-crypt/gnupg from app-crypt/gpgme-1.3.0:1::installed, key 'Run dependencies', labelled 'RDEPEND'
    No decision could be made
For sys-fs/cryptsetup:0::(install_to_slash):
    The following constraints were in action:
      * !<sys-fs/cryptsetup-1.1.2, use existing if possible, installing to /
        Because of !<sys-fs/cryptsetup-1.1.2 from sys-fs/lvm2-2.02.83:0::installed
      * !sys-fs/cryptsetup, use existing if possible, installing to /
        Because of !sys-fs/cryptsetup from sys-fs/cryptsetup-1.2.0-r1:0::installed
      * !sys-fs/cryptsetup, use existing if possible, installing to /
        Because of !sys-fs/cryptsetup from sys-fs/cryptsetup-1.2.0-r1:0::installed
    No decision could be made