这该如何是好

athlon_r

1. emerge --oneshot qt-core
2. Calculating dependencies... done!
5. [nomerge      ] app-text/poppler-0.12.4  USE="abiword cairo cjk jpeg jpeg2k lcms png qt4 utils xpdf-headers -debug -doc -exceptions"
6. [nomerge      ]  dev-util/cmake-2.8.0-r2  USE="ncurses qt4 -emacs -vim-syntax"
7. [nomerge      ]   x11-libs/qt-gui-4.6.2  USE="accessibility cups dbus exceptions glib gtk mng nas qt3support xinerama (-aqua) -debug -nis -pch -raster -tiff"
8. [ebuild  N    ]    net-print/cups-1.4.2-r1  USE="X acl dbus gnutls java jpeg pam perl png python samba ssl tiff -debug -kerberos -ldap -php -slp -static -xinetd" LINGUAS="ja zh_TW -da -de -es -eu -fi -fr -it -ko -nl -no -pl -pt -pt_BR -ru -sv -zh"
9. [ebuild  N    ]     app-text/poppler-0.12.4  USE="abiword cairo cjk jpeg jpeg2k lcms png qt4 utils xpdf-headers -debug -doc -exceptions"
10. [ebuild  N    ]      x11-libs/gtk+-2.18.6  USE="cups jpeg jpeg2k xinerama (-aqua) -debug -doc -test -tiff -vim-syntax"
11. [ebuild  N    ]      dev-util/cmake-2.8.0-r2  USE="ncurses qt4 -emacs -vim-syntax"
12. [ebuild  N    ]       x11-libs/qt-gui-4.6.2  USE="accessibility cups dbus exceptions glib gtk mng nas qt3support xinerama (-aqua) -debug -nis -pch -raster -tiff"
14. * Error: circular dependencies:
16. ('ebuild', '/', 'x11-libs/gtk+-2.18.6', 'merge') depends on
17.   ('ebuild', '/', 'net-print/cups-1.4.2-r1', 'merge') (buildtime)
18. ('ebuild', '/', 'dev-util/cmake-2.8.0-r2', 'merge') depends on
19.   ('ebuild', '/', 'x11-libs/qt-gui-4.6.2', 'merge') (buildtime)
20. ('ebuild', '/', 'net-print/cups-1.4.2-r1', 'merge') depends on
21.   ('ebuild', '/', 'app-text/poppler-0.12.4', 'merge') (buildtime)
22. ('ebuild', '/', 'x11-libs/qt-gui-4.6.2', 'merge') depends on
23.   ('ebuild', '/', 'net-print/cups-1.4.2-r1', 'merge') (buildtime)
24.   ('ebuild', '/', 'x11-libs/gtk+-2.18.6', 'merge') (buildtime)
25. ('ebuild', '/', 'app-text/poppler-0.12.4', 'merge') depends on
26.   ('ebuild', '/', 'dev-util/cmake-2.8.0-r2', 'merge') (buildtime)
27.   ('ebuild', '/', 'x11-libs/gtk+-2.18.6', 'merge') (buildtime)
28.   ('ebuild', '/', 'x11-libs/qt-gui-4.6.2', 'merge') (buildtime)
30. * Note that circular dependencies can often be avoided by temporarily
31. * disabling USE flags that trigger optional dependencies.

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成圈了...

boby2009ah

先装gtk试试

独钓寒江雪

总体上说，应该是你的uses 有问题把。
就解决这个圈的问题，我觉得应该调整你的uses