make_lock_file_name  724 src/filelock.c       lfname = make_lock_file_name (fn);
make_lock_file_name  767 src/filelock.c   Lisp_Object lfname = make_lock_file_name (fn);
make_lock_file_name  917 src/filelock.c   Lisp_Object lfname = make_lock_file_name (filename);