paludis --install -U beryl-core
paludis@1173289413: [WARNING] --dl-no-unnecessary-upgrades / -U is deprecated
paludis@1173289413: [WARNING] Repository 'xeffects' is blacklisted with reason 'Upstream hates Paludis and doesn't support us'. Consult the FAQ for more details.
Building target list...
Building dependency list...
Unhandled exception:
  * In program paludis --install -U beryl-core:
  * When performing install action from command line:
  * When executing install task:
  * When adding PackageDepSpec 'x11-wm/beryl-core':
  * When adding package 'x11-wm/beryl-core-9999::xeffects':
  * When adding build dependencies as pre dependencies:
  * When adding PackageDepSpec '>=x11-base/xorg-server-1.1.1-r1':
  * When adding installed package 'x11-base/xorg-server-1.1.99.903-r2::installed':
  * When adding post dependencies as post dependencies:
  * When adding PackageDepSpec 'x11-drivers/linuxwacom':
  * When adding installed package 'x11-drivers/linuxwacom-0.7.4_p3::installed':
  * When adding run dependencies as post dependencies:
  * When adding PackageDepSpec '>=x11-libs/gtk+-2':
  * When adding installed package 'x11-libs/gtk+-2.10.7-r1::installed':
  * When adding run dependencies as post dependencies:
  * When adding PackageDepSpec '>=x11-libs/pango-1.12.0':
  * When adding installed package 'x11-libs/pango-1.14.7::installed':
  * When adding run dependencies as post dependencies:
  * When adding PackageDepSpec '>=x11-libs/cairo-1.2.2':
  * When adding installed package 'x11-libs/cairo-1.3.10::installed':
  * When adding run dependencies as post dependencies:
  * When adding PackageDepSpec '>=media-libs/glitz-0.5.1':
  * When adding installed package 'media-libs/glitz-0.5.6::installed':
  * When adding run dependencies as post dependencies:
  * When adding PackageDepSpec 'virtual/opengl':
  * When fetching metadata for 'x11-drivers/ati-drivers-8.32.5-r91':
  * When loading VDBRepository entry for 'x11-drivers/ati-drivers-8.32.5-r91' from '/var/db/pkg':
  * When validating use flag name 'USE="udev':
  * Name 'USE="udev' is not a valid use flag name (paludis::UseFlagNameError)