Does CentOS have a realpath package in default yum repos? If not, that might be the closest we can get – I'm hesitant to recommend ``python -c 'import sys, os; print "\n".join(os.path.realpath(i) for i in sys.argv[1:])'`` for obvious reasons — unless we wanted to rewrite the entire script in Python.

I guess the other way of looking at this is that the whole reason this check exists is so the install will happen at a fixed location relative to the script. Perhaps we should just drop that goal entirely and just make it clear that it will assemble everything in the current directory.