Build Error, please help...

I can recompile all modules without an error, but I get this error when trying to run my app:

/usr/bin/ld: warning: libstdc++.so.6, needed by /usr/lib/libGLU.so, may conflict with libstdc++.so.5
appstub.linux signal handler 11

What is this?

Grisu

"/usr/bin/ld: warning: libstdc++.so.6, needed by /usr/lib/libGLU.so, may conflict with libstdc++.so.5"

I get this error on all programs i compile, but they do seem to run fine.

I get the first error that doesn't seem to bother in any way.
I get the second one when triing to use fullscreen mode.

What should i do to be able to run full screen programs?