void isos # emerge --resume
*** Resuming merge...
>>> starting parallel fetching

>>> Emerging (1 of 265) dev-python/pyopengl-2.0.0.44 to /
 * PyOpenGL-2.0.0.44.tar.gz MD5 ;-) ...                                                                                                                 [ ok ]
 * 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/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 1546:   Called dyn_unpack
  ebuild.sh, line 708:   Called src_unpack
  pyopengl-2.0.0.44.ebuild, line 34:   Called built_with_use 'dev-lang/python' 'tcltk'
  eutils.eclass, line 1605:   Called die

!!! dev-lang/python-2.4.3-r1 does not actually support the tcltk USE flag!
!!! If you need support, post the topmost build error, and the call stack if relevant.