11-libs/gtkglext не собирается

stp4 ~ # emerge gnome
Calculating dependencies... done!

>>> Verifying ebuild manifests

>>> Starting parallel fetch

>>> Emerging (1 of 97) x11-libs/gtkglext-1.2.0
 * gtkglext-1.2.0.tar.bz2 RMD160 SHA1 SHA256 size ;-) ...                                                                                             [ ok ]
 * checking ebuild checksums ;-) ...                                                                                                                  [ ok ]
 * checking auxfile checksums ;-) ...                                                                                                                 [ ok ]
 * checking miscfile checksums ;-) ...                                                                                                                [ ok ]
/usr/portage/x11-libs/gtkglext/gtkglext-1.2.0.ebuild: line 28: built_with_use: команда не найдена
 * Please re-emerge x11-libs/pango with the X USE flag set
 * 
 * ERROR: x11-libs/gtkglext-1.2.0 failed.
 * Call stack:
 *               ebuild.sh, line   48:  Called pkg_setup
 *   gtkglext-1.2.0.ebuild, line   30:  Called die
 * The specific snippet of code:
 *   		die "needs pango with the X flag set"
 *  The die message:
 *   needs pango with the X flag set

как решить данную проблему ???
x11-libs/pango собран с флагом Х