The makefile detects when it is executed in an /afs/ environment and 
looks for OCaml and glut in /afs/andrew/class/15/411, else it uses
the default install-path for OCaml. 

build: 

Use build to compile programs usgin my compiler. Similar to the makefile, 
it also recognizes whehter it is executed in the andrew-environment
and grabs the correct libraries form /afs/andrew/course/15/411 during
linking. 

Roland
