It's from the apt-get command. Thanks for your help, I'll give it another shot tonight when I find the time.
CMake Error: The source directory "/home/matthew" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
aaaaahhhhhhhh
Did you follow the linux build wiki page correctly? You don't seem to be using a build directory.