error when make test

[sonjaya@stud.che.itb.ac.id]

dear milist i try to install openldap , like this :
#./configure --prefix=/usr/local/openldap --enable-ipv6 --enable-local
--enable-bdb
and sucsess
and try make tes to chek ,and i get error like this:

[sonjaya@pim openldap-2.1.22]$ make test
     cd tests; make test
make[1]: Entering directory `/home/sonjaya/openldap-2.1.22/tests'
ln: `./data': cannot overwrite directory
make[1]: [test-bdb] Error 1 (ignored)
Initiating LDAP tests for BDB...
>>>>> Executing all LDAP tests...
>>>>> Test Directory: .
>>>>> Backend: bdb
>>>>> Starting test000-rootdse ...
running defines.sh
Datadir is ./data
Cleaning up in ./test-db...
Starting slapd on TCP/IP port 9009...
Using ldapsearch to retrieve the root DSE...
Waiting 5 seconds for slapd to start...
Waiting 5 seconds for slapd to start...
Waiting 5 seconds for slapd to start...
Waiting 5 seconds for slapd to start...
Waiting 5 seconds for slapd to start...
Waiting 5 seconds for slapd to start...
./scripts/test000-rootdse: line 57: kill: (3718) - No such process
./scripts/test000-rootdse: line 42: ../clients/tools/ldapsearch: No such
file or directory
>>>>> Test failed
>>>>> ./scripts/test000-rootdse failed (exit 127)
make[1]: *** [test-bdb] Error 127
make[1]: Leaving directory `/home/sonjaya/openldap-2.1.22/tests'
make: *** [test] Error 2
[sonjaya@pim openldap-2.1.22]$


what shold i do to fix it ?