Add compile support

[TheTyp]

Hello everyone,
I want to set up my knoppix 4.0.2-CD in order to be able to compile source code (e.g. an ordinary screen saver), but I get the error described here:
http://www.knoppix.net/forum/viewtopic.php?t=20098&highlight=preprocessor+compile+error
Any idea to solve this problem?

Thanks in advance