emerge kde-meta error The following USE changes are necessary to proceed

l_s

pls help me

emerge  kde-meta

error :

The following USE changes are necessary to proceed:

#required by kde-base/okular-4.6.5[pdf], required by kde-base/kdegraphics-meta-4.6.5, required by kde-base/kde-meta-4.6.5, required by kde-base/kde-meta (argument)
=app-text/poppler-0.16.7 qt4

NOTE: This --autounmask behavior can be disabled by setting
      EMERGE_DEFAULT_OPTS="--autounmask=n" in make.conf.

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mathfeel

你想装kde但却不启动qt4？

anarchist

USE里增加qt4