One of the notes on the linke above:
Linux Platform
If you are not interested in building everything yourself then consider:
- the pre-built Debian snapshots
- the QtonPi project, which aims to build a more complete end-to-end Qt stack specifically targeting the Raspberry Pi.
The Raspberry Pi Foundation provides a few different distributions. This documentation is tested on the Debian "Squeeze" image, which can be downloaded here. The images come with the needed packages for the VideoCore GPU and a suitable kernel. Additionally there are three different start.elf files located in /boot. Those are GPU binary firmware images, provided by the Raspberry Pi Foundation, which can be used to select the amount of memory available for the GPU.