2328     int		    nomark = 0;  // shut up compiler  in undo_time()  local
2437 	nomark = ++lastmark;  in undo_time()
2489 	    if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark  in undo_time()
2495 		    && uhp->uh_alt_next.ptr->uh_walk != nomark  in undo_time()
2502 		    && uhp->uh_next.ptr->uh_walk != nomark  in undo_time()
2507 		    uhp->uh_walk = nomark;  in undo_time()
2514 		uhp->uh_walk = nomark;  in undo_time()
2570 		uhp->uh_walk = nomark;	// don't go back down here  in undo_time()
3078     int		nomark;  in ex_undolist()  local
3088     nomark = ++lastmark;  in ex_undolist()
3094 	if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark  in ex_undolist()
3116 	if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark  in ex_undolist()
3125 		&& uhp->uh_alt_next.ptr->uh_walk != nomark  in ex_undolist()
3132 		&& uhp->uh_next.ptr->uh_walk != nomark  in ex_undolist()
3142 	    uhp->uh_walk = nomark;  in ex_undolist()