do_lock           348 maint/gnulib/lib/asyncsafe-spin.c   do_lock (lock);
do_lock           117 maint/gnulib/lib/flock.c       res = do_lock (h, non_blocking, 0);
do_lock           120 maint/gnulib/lib/flock.c       res = do_lock (h, non_blocking, 1);