Easiest thing to do is save your startup file somewhere (.conf file?) and then "sudo rm -rf" your bfgminer folder.  Then "git clone https://github.com/luke-jr/bfgminer.git" and rebuild from there.  It always downloads the latest version updated within github.  That worked great for me.  Run it on a Rasp. Pi.  Took a while to build because it's an older Pi, but works like a charm.