When you go to racket-lang.org/download/, which platform are you downloading for? I've been able to build using the Unix source (racket-5.1.1-src-unix.tgz) on your same distribution, Ubuntu 10.04.
I'm using GNU Make 3.81. Bill T. _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
