Deploying Qt 4.2 Application on Mac 10.3.5?

Hi All,

I m using Qt 4.2.2 on my Mac OS 10.4.6.
I have an application developed in Qt 4.2.2 and it is working fine in Mac 10.4.6(Mac tiger).

I have add tha following line in .pro file

QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.3

and then changing the gcc compiler from GCC 4.0 to GCC 3.3 by following command

sudo gcc_select 3.3

and then compile the application with that compiler and it run again well on Mac 10.4.6 but when I run the application on MAC 10.3.5 it gives the following error.
can not open library: /usr/lib/libstdc++.6.dylib

when I see the otool -L command output it doesnot show that library in the list.

So how can I deploy my application on MAC 10.3.5.

Thanks.