sys-apps/systemd:0

  (sys-apps/systemd-212-r5:0/2::gentoo, ebuild scheduled for merge) pulled in by
    >=sys-apps/systemd-212-r5:0/2[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?,abi_ppc_32(-)?,abi_ppc_64(-)?,abi_s390_32(-)?,abi_s390_64(-)?,gudev,introspection?,static-libs(-)?] required by (virtual/libgudev-208:0/0::gentoo, installed)
    ^^                 ^^^^^^^^^^
    (and 1 more with the same problem)

  (sys-apps/systemd-208-r3:0/1::gentoo, installed) pulled in by
    sys-apps/systemd:0/1= required by (media-gfx/sane-backends-1.0.24-r3:0/0::gentoo, installed)
                    ^^^^^
    (and 4 more with the same problem)