Somebody tested bleadperl on DragonflyBSD for me. All tests pass, except: Failed Test Stat Wstat Total Fail List of Failed ------------------------------------------------------------------------------- ../lib/Module/Build/t/compat.t 1 256 60 1 35 ../lib/Module/Build/t/metadata.t 1 256 47 1 40 So I committed a fix for Module::Build : http://public.activestate.com/cgi-bin/perlbrowse/p/30432 Basically it's just adding "dragonfly" into the list of known OSes.