GFS_FL_LAST
bp[ind].flags|=GFS_FL_LAST;
bp[ind].flags|=GFS_FL_LAST;
if(bp[ind].flags & GFS_FL_LAST) { /* we have to advance here */
if(!(bp[i].flags & GFS_FL_LAST)) {
if(bp[i].flags & GFS_FL_LAST) {