Linking error agaist QtWebkit on CentOS6.4 x64

a simple application uses QtWebkit but got linking error:
[tvu@localhost src]$ make
g++ -Wl,-O1 -Wl,-rpath,/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64 -Wl,-rpath,/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64/lib -Wl,-rpath-link,/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64/lib -o istkani main.o rootnavigatormodel.o navigatorparser.o ssqhistorymodel.o networkaccessmanager.o ssqexpertkillmodel.o killfrom5biying.o killfrom360.o killfrom78500.o killfromcjcp.o killfromokooo.o killfromsohu.o mainwindow.o qrc_istkani.o moc_mainwindow.o moc_rootnavigatormodel.o moc_ssqhistorymodel.o moc_networkaccessmanager.o moc_ssqexpertkillmodel.o moc_killfrom5biying.o moc_killfrom360.o moc_killfrom78500.o moc_killfromcjcp.o moc_killfromokooo.o moc_killfromsohu.o -L/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64/lib -lQt5WebKitWidgets -lX11 -ludev -lgio-2.0 -lgstapp-0.10 -lgstinterfaces-0.10 -lgstpbutils-0.10 -pthread -lgstvideo-0.10 -lgstbase-0.10 -lgstreamer-0.10 -lgobject-2.0 -lgmodule-2.0 -lxml2 -lgthread-2.0 -lrt -lglib-2.0 -lQt5Sql -lQt5Quick -lQt5OpenGL -lQt5PrintSupport -lQt5Qml -ldl -lQt5WebKit -lQt5Widgets -lQt5Sensors -lQt5Network -lQt5Xml -lQt5Gui -lQt5Core -lGL -lpthread
/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64/lib/libQt5WebKit.so: undefined reference to `g_variant_ref'
/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64/lib/libQt5WebKit.so: undefined reference to `gst_query_parse_nth_buffering_range'
/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64/lib/libQt5WebKit.so: undefined reference to `g_variant_unref'
/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64/lib/libQt5WebKit.so: undefined reference to `gst_is_initialized'
/home/tvu/Qt5.2.0/5.2.0-beta1/gcc_64/lib/libQt5WebKit.so: undefined reference to `gst_query_get_n_buffering_ranges'
collect2: error: ld returned 1 exit status
make: *** [istkani] Error 1