regent: Don't keep build directory unless specified by user.
regent: Don't keep build directory unless specified by user.

sdalton1/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,StanfordLegion/legion,sdalton1/legion,StanfordLegion/legion,sdalton1/legion,sdalton1/legion,sdalton1/legion,sdalton1/legion,StanfordLegion/legion