parsec isn't included in bintars

ERROR 1045 (28000): Plugin parsec could not be loaded: /usr/local/mysql/lib/plugin/parsec.so: cannot open shared object file: No such file or directory

MariaDB [(none)]> show plugins;

+-------------------------------+----------+--------------------+---------+---------+

| Name                          | Status   | Type               | Library | License |

+-------------------------------+----------+--------------------+---------+---------+

| binlog                        | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |

| ..

| ..

| parsec                        | ACTIVE   | AUTHENTICATION     | NULL    | GPL     |

|..

|..

| partition                     | ACTIVE   | STORAGE ENGINE     | NULL    | GPL     |

+-------------------------------+----------+--------------------+---------+---------+

72 rows in set (0,002 sec)

MariaDB [(none)]> grant all privileges on *.* to 'pino'@'%' identified via parsec using password('123');

Query OK, 0 rows affected (0,003 sec)

MariaDB [(none)]> SELECT User, Host, plugin  FROM mysql.user WHERE user='pino';

+------+------+--------+

| User | Host | plugin |

+------+------+--------+

| pino | %    | parsec |

+------+------+--------+

1 row in set (0,002 sec)

MariaDB [(none)]> Bye

# bin/mariadb -upino -p123 -h127.0.0.1 -P11111

ERROR 1045 (28000): Plugin parsec could not be loaded: /usr/local/mysql/lib/plugin/parsec.so: cannot open shared object file: No such file or directory

MariaDB [(none)]> install soname 'auth_parsec'; 

ERROR 1126 (HY000): Can't open shared library '/run/media/claudio/FedoraData/myharem/instances/11111/lib/plugin/auth_parsec.so' (errno: 2, cannot open shared object file: No such file or directory)