I'm not sure where you're seeing these messages. There hasn't been any GPU code in mainline cgminer for over a year and I'm not supporting anything but the current version.
Thanks @ckolivas.
This is the output of cgminer.
I use it to mine on testnet. There are 4 radeon 79xx gpu cards, and according to cgminer stats it does ~2.5gh/s - I was hoping to mine something, especially that current testnet difficulty == 1.0, but it doesn't work, hence I posted this warning(?) messages.