I'm having trouble running stuff on limey: 1. "perl" seems to be version 5.8.0, which breaks some of my code. How can I run an earlier version? There seems to be a v5.6 lying around. 2. Where is gcc? ~/h/kmeans/ >gcc bash: gcc: command not found My PATH is: :/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/X11R6/bin