Problem in run Qt program

Hello,
I have sucessfully crosscompile the Qt & tslib lib and it install on
mini2440 board.
How to solve this problem..

./fluidlauncher: /lib/libc.so.6: version `GLIBC_2.9' not found (required by
/usr/local/qt/lib/libQtGui.so.4)

./fluidlauncher: /lib/libc.so.6: version `GLIBC_2.9' not found (required by
/usr/local/qt/lib/libQtCore.so.4)

Thanx in Advance

Is there a file /lib/libc.so.6 on the board?

You are using a different libc revision to build your Qt-lib than running
it. Both must be the same. Use a cross compiler und libc matching the root
filesystem content on your Mini2440.