bs2_UFORK          72 os/bs2000/os.c             forktype = bs2_UFORK;
bs2_UFORK         116 os/bs2000/os.c       case bs2_UFORK:
bs2_UFORK         650 os/unix/unixd.c             forktype = bs2_UFORK;
bs2_UFORK         694 os/unix/unixd.c       case bs2_UFORK: