(author here) I haven't tried to build on a mac in a while, bison there seems to support fewer options (must be an older version). For now, I've just checked i

(author here) I haven't tried to build on a mac in a while, bison there seems to support fewer options (must be an older version). For now, I've just checked in the autogenerated parser, so that bison won't have to run when you build master. git-pull and try again :)