/lib/libQtGui.so: undefined reference to `ts_read_raw'

编译qt程序到x86板子上，make 的时候出现下列问题

/lib/libQtGui.so: undefined reference to `ts_read_raw'

lib/libQtGui.so: undefined reference to `ts_open'
lib/libQtGui.so: undefined reference to `ts_fd'
lib/libQtGui.so: undefined reference to `ts_config'
lib/libQtGui.so: undefined reference to `ts_close'

lib/libQtGui.so: undefined reference to `ts_read'

此错误需要修改Qt源码安装包qt-everywhere-source-4.7.3中mkspecs/common/linux.conf文件，将QMAKE_LIBS_THREAD选项改为 QMAKE_LIBS_THREAD=-lphtread -lts

这具体是什么原因，目前不知到，希望大婶补充，