安装KDE时kde-base/kdenetwork-3.5.7包出错

[shl42]

>>> Emerging (1 of 1) kde-base/kdenetwork-3.5.7 to /
* kdenetwork-3.5-patchset-01.tar.bz2 RMD160 ... [ ok ]
* kdenetwork-3.5-patchset-01.tar.bz2 SHA1 ... [ ok ]
* kdenetwork-3.5-patchset-01.tar.bz2 SHA256 ... [ ok ]
* kdenetwork-3.5-patchset-01.tar.bz2 size ... [ ok ]
* kdenetwork-3.5.7.tar.bz2 RMD160 ... [ ok ]
* kdenetwork-3.5.7.tar.bz2 SHA1 ... [ ok ]
* kdenetwork-3.5.7.tar.bz2 SHA256 ... [ ok ]
* kdenetwork-3.5.7.tar.bz2 size ... [ ok ]
* checking ebuild checksums ... [ ok ]
* checking auxfile checksums ... [ ok ]
* checking miscfile checksums ... [ ok ]
* checking kdenetwork-3.5.7.tar.bz2 ... [ ok ]
* checking kdenetwork-3.5-patchset-01.tar.bz2 ... [ ok ]
* QA Notice: USE Flag 'kernel_linux' not in IUSE for kde-base/kdenetwork-3.5.7
* To support Video4Linux webcams in this package is required to have
* =x11-libs/qt-3* compiled with OpenGL support.
* Please reemerge =x11-libs/qt-3* with USE="opengl".
*
* ERROR: kde-base/kdenetwork-3.5.7 failed.
* Call stack:
* ebuild.sh, line 1670: Called dyn_setup
* ebuild.sh, line 719: Called qa_call 'pkg_setup'
* ebuild.sh, line 44: Called pkg_setup
* kdenetwork-3.5.7.ebuild, line 57: Called die
*
* Please reemerge =x11-libs/qt-3* with USE="opengl".
* 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/kde-base/kdenetwork-3.5.7/temp/build.log'.
*


我KDE就剩下这一个包没通过了。

[r0bertz]