valsort test

[Gerard Ranke <gerard.ranke@kmt.hku.nl>]

Hi all,

I managed to compile OpenLDAP 2.3.20, but the valsort make test failed. The 
databasesearch in the test returned:

(...)
dn: uid=george,ou=users,o=valsort
objectClass: OpenLDAPperson
uid: george
sn: alpha
sn: jungle
sn: tree
sn: zib
cn: george
businessCategory: test
carLicense: SAMPLE
departmentNumber: 1
departmentNumber: 10
departmentNumber: 3
departmentNumber: 37
departmentNumber: 46
departmentNumber: 5
departmentNumber: 72
displayName: George
employeeNumber: 5150
employeeType: anarchist
employeeType: contractor
employeeType: staff
givenName: Big G
ou: Chemistry
ou: Computer Science
ou: Hum Bio
ou: Academia
mailPreferenceOption: 3
mailPreferenceOption: 87
mailPreferenceOption: 22
mailPreferenceOption: 1
mailPreferenceOption: 66

where it should have been:

(...)
dn: uid=george,ou=users,o=valsort
objectClass: OpenLDAPperson
uid: george
sn: alpha
sn: jungle
sn: tree
sn: zib
cn: george
businessCategory: test
carLicense: SAMPLE
departmentNumber: 1
departmentNumber: 10
departmentNumber: 3
departmentNumber: 37
departmentNumber: 46
departmentNumber: 5
departmentNumber: 72
displayName: George
employeeNumber: 5150
employeeType: anarchist
employeeType: contractor
employeeType: staff
givenName: Big G
ou: Chemistry
ou: Computer Science
ou: Hum Bio
ou: Academia
mailPreferenceOption: 1
mailPreferenceOption: 3
mailPreferenceOption: 22
mailPreferenceOption: 66
mailPreferenceOption: 87

So it seems only the mailPreferenceOption attributes are not being sorted here. 
Could this have anything to do with our build? The backend used was db4-4.3.28, 
and my configure line:

./configure  --with-tls  --enable-modules --enable-bdb=yes  --enable-hdb=yes 
--enable-ldbm  --enable-passwd --enable-spasswd --enable-crypt --enable-ipv6 
--enable-lmpasswd --enable-overlays --enable-sql --enable-ldap

Any insight is welcome!
Best,

gerard