Darkwaters ~ # emerge wpa_supplicant
Calculating dependencies... done!

>>> Emerging (1 of 1) net-wireless/wpa_supplicant-0.5.6 to /
 * wpa_supplicant-0.5.6.tar.gz MD5 ;-) ...                                [ ok ]
 * wpa_supplicant-0.5.6.tar.gz RMD160 ;-) ...                             [ ok ]
 * wpa_supplicant-0.5.6.tar.gz SHA1 ;-) ...                               [ ok ]
 * wpa_supplicant-0.5.6.tar.gz SHA256 ;-) ...                             [ ok ]
 * wpa_supplicant-0.5.6.tar.gz size ;-) ...                               [ ok ]
 * checking ebuild checksums ;-) ...                                      [ ok ]
 * checking auxfile checksums ;-) ...                                     [ ok ]
 * checking miscfile checksums ;-) ...                                    [ ok ]
 * checking wpa_supplicant-0.5.6.tar.gz ;-) ...                           [ ok ]
 *
 * wpa_supplicant requires kernel support for Packet Socket (CONFIG_PACKET).
 *
 * You have USE="qt3 qt4" selected, defaulting to USE="qt4"
 * >=qt4.2.2 requires qt3support

!!! ERROR: net-wireless/wpa_supplicant-0.5.6 failed.
Call stack:
  ebuild.sh, line 1596:   Called dyn_setup
  ebuild.sh, line 666:   Called pkg_setup
  wpa_supplicant-0.5.6.ebuild, line 43:   Called die

!!! rebuild >=x11-libs/qt-4.2.2 with the qt3support USE flag
!!! If you need support, post the topmost build error, and the call stack if relevant.