this shows that scons cannot find racket in the path.
"-Ino racket in /bin /sbin /usr/bin /usr/sbin /opt/local/bin/ /Applications/Racket v5.1/bin/ /Applications/Racket v5.1/include/ /usr/l/include"
maybe you need to restart the terminal you build fluxus from? if not, what does 'which racket' returns? it should be /Applications/Racket v5.1/bin/racket
this is not required, and won't help:
PATH=$PATH:/Applications/Racket\ v5.1/include/
gabor
