Problem with a MySQL derrivative called MariaDB

I compiled the version of MariaDB a derivative MySQL implementation and when I went to
install a plug-in storage engine I got the error:


MariaDB [(none)]> INSTALL PLUGIN XTRADB  SONAME 'ha_xtradb.so';
ERROR 1127 (HY000): Can't find symbol 'XTRADB' in library
MariaDB [(none)]>

The version of the database is shown in the status info below:

SSL:                              Not in use
Current pager:          stdout
Using outfile:             ''
Using delimiter:        ;
Server:                        MariaDB
Server version:         5.3.3-MariaDB-rc-log Source distribution
Protocol version:       10
Connection:               Localhost via UNIX socket
Server characterset:    latin1
Db     characterset:       latin1
Client characterset:      latin1
Conn.  characterset:    latin1
UNIX socket:            /tmp/mysql.sock
Uptime:                 46 days 6 hours 7 min 59 sec

Threads: 1  Questions: 19  Slow queries: 0  Opens: 17  Flush tables: 1  Open tables: 10  Queries per second avg: 0.0

Any ideas how to fix this problem would be appreciated.