之前一直想在ARM 上跑qt，但都出现错误：

./hello: error while loading shared libraries: libQtGui.so.4: cannot open shared object file: No such file or directory

这主要是ARM 上的运行环境设置不当：

我用的是飞凌的6410 环境变量设置如下：

export PATH='/opt/Qtopia4.4.3/bin:/sbin:/usr/sbin:/bin:/usr/bin'
export QPEDIR='/opt/Qtopia4.4.3'
export QTDIR='/opt/Qtopia4.4.3'
export QT_QWS_FONTDIR='/opt/Qtopia4.4.3/lib/fonts/'
export QWS_DISPLAY='LinuxFb:mmWidth76:mmHeight44:1'
export QWS_MOUSE_PROTO='Tslib:/dev/input/event1'
export TSLIB_CALIBFILE='/etc/pointercal'
export TSLIB_CONFFILE='/usr/local/tslib/etc/ts.conf'
export TSLIB_CONSOLEDEVICE='none'
export TSLIB_FBDEVICE='/dev/fb0'
export TSLIB_PLUGINDIR='/usr/local/tslib/lib/ts'
export TSLIB_ROOT='/usr/local/tslib'
export TSLIB_TSDEVICE='/dev/input/event1'
export TSLIB_TSEVENTTYPE='H3600'
export QT_PLUGIN_PATH='/opt/Qtopia4.4.3/plugins:/opt/Qtopia4.4.3/qt_plugins/'
export LD_LIBRARY_PATH='/opt/Qtopia4.4.3/lib'//之前忘了加这条