Download the LUFA-111009 package from http://www.fourwalledcubicle.com/LUFA.php , and place the LUFA directory in the same directory as the RGB_clock directory. For example, if your RGB_clock directory is in ~/avr :

$ cd ~/avr/
$ wget http://lufa-lib.googlecode.com/files/LUFA-111009.zip
$ unzip LUFA-111009.zip
$ ln -s LUFA-111009/LUFA LUFA

Rename LUFA/makefile to LUFA/Makefile.

$ mv LUFA/makefile LUFA/Makefile

Typing "make" in the RGB_clock directory, should now result in a succesfull compilation.

$ cd RGB_clock-20120201
$ make
