help~~!!!

qman9501

I had this error.Could your tell me how to killing this.
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_cleanup_pop'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_attr_destroy'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_attr_init'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_exit'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_cancel'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_testcancel'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_cleanup_push'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_attr_getschedpolicy'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_attr_setinheritsched'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_attr_setstacksize'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_attr_setschedparam'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_attr_setdetachstate'
/usr/X11R6/lib/libqt-mt.so: undefined reference to `pthread_cond_timedw

甜甜的笑一个

kde的基础库qt出了问题啊
什么回事呢?