Adding additional Sasl mechanisms

[Asmaa Ahmed]

Hello,
Currently I have Gssapi for my ldap server.
ldapsearch -x -H ldapi:// -b '' -s base -LLL supportedSASLMechanismsdn:supportedSASLMechanisms: GSSAPI
I want also to let open ldap server to support other authentication mechanisms like digest-md5, CRAM-MD5,..Is this possible? and how can I do that as i couldn't find a good doc for the procedure?

Thanks.