lucky ~ # emerge pyopengl
Calculating dependencies... done!
>>> Verifying ebuild Manifests...

>>> Emerging (1 of 1) dev-python/pyopengl-2.0.0.44 to /
 * PyOpenGL-2.0.0.44.tar.gz RMD160 ;-) ...                                     [ ok ]
 * PyOpenGL-2.0.0.44.tar.gz SHA1 ;-) ...                                       [ ok ]
 * PyOpenGL-2.0.0.44.tar.gz SHA256 ;-) ...                                     [ ok ]
 * PyOpenGL-2.0.0.44.tar.gz size ;-) ...                                       [ ok ]
 * checking ebuild checksums ;-) ...                                           [ ok ]
 * checking auxfile checksums ;-) ...                                          [ ok ]
 * checking miscfile checksums ;-) ...                                         [ ok ]
 * checking PyOpenGL-2.0.0.44.tar.gz ;-) ...                                   [ ok ]
>>> Unpacking source...
>>> Unpacking PyOpenGL-2.0.0.44.tar.gz to /var/tmp/portage/dev-python/pyopengl-2.0.0.44/work
 * Applying config.diff ...                                                    [ ok ]
 * Applying pyopengl-2.0.0.44-fix_togl.patch ...                               [ ok ]

!!! ERROR: dev-python/pyopengl-2.0.0.44 failed.
Call stack:
  ebuild.sh, line 1621:   Called dyn_unpack
  ebuild.sh, line 753:   Called qa_call 'src_unpack'
  ebuild.sh, line 44:   Called src_unpack
  pyopengl-2.0.0.44.ebuild, line 33:   Called built_with_use 'dev-lang/python' 'tk'
  eutils.eclass, line 1714:   Called die

!!! dev-lang/python-2.4.2 does not actually support the tk 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/dev-python/pyopengl-2.0.0.44/temp/build.log'.

lucky ~ #