Hello, I noticed on my Redhat 7.2 system with OpenLDAP 2.0.11 that the man page for ldap_schema(3) states that you need to include ldap.h. On my system you also need to include ldap_schema.h. I'm not sure which should be changed, ldap.h to include ldap_schema.h, or the man page to state that you need ldap_schema.h as well as ldap.h. Keith.