The command that starts the compilation of Xfree86
systems, upon which invocation the compiler
will begin tormenting your CPU
with line after line of source code
it wants to convert into a nice, big, machine executable programs which will allow you to have a GUI
with its 16 million colours and different types of fonts*(**) that are more interesting than the white-on-black
Also perhaps what God typed in on the 2nd day of creation, if it's finally proven that he's really a programmer.
* Some more assembly (e.g. writing of config files
** If no "make: ***install
Error 2" or something similar shows up.