!!! ERROR: media-gfx/hugin-0.6.1 failed.
Call stack:
  ebuild.sh, line 1653:   Called dyn_setup
  ebuild.sh, line 714:   Called qa_call 'pkg_setup'
  ebuild.sh, line 44:   Called pkg_setup
  hugin-0.6.1.ebuild, line 26:   Called built_with_use 'dev-libs/boost' 'threads'
  eutils.eclass, line 1710:   Called die

!!! dev-libs/boost-1.34.0 does not actually support the threads USE flag!
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/media-gfx/hugin-0.6.1/temp/build.log'.