Uninvited listener?

[Chris Evans <sibyltalk@yahoo.com>]

I am new to LDAP, and am trying to get OpenLDAP installed on a computer
running SUSE 11.0.  (Actually, I did this on two similarly configured
machines with the same result.)  Everything goes smoothly up until the
"make test" step, which produces:

    >>>>> Starting test000-rootdse ...
    running defines.sh
    Starting slapd on TCP/IP port 9011...
    Using ldapsearch to retrieve the root DSE...
    Waiting 5 seconds for slapd to start...
       [omitting repeats]
    ./scripts/test000-rootdse: line 66: kill: (4683) - No such process
    ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1)
    >>>>> Test failed
    >>>>> ./scripts/test000-rootdse failed (exit 255)
    make[2]: *** [bdb-yes] Error 255
    make[2]: Leaving directory `/usr/local/pkg/openldap/openldap-2.4.11/tests'
    make[1]: *** [test] Error 2
    make[1]: Leaving directory `/usr/local/pkg/openldap/openldap-2.4.11/tests'
    make: *** [test] Error 2

The file slapd1.l.log in tests/testrun ends with the following:

    >>> dnNormalize: <cn=Write>
    <<< dnNormalize: <cn=write>
    slapd starting
    daemon: listen(ldap://localhost:9011/, 5) failed errno=98 (Address already in use)
    slapd shutdown: initiated
    ====> bdb_cache_release_all
    slapd destroy: freeing system resources.
    slapd stopped.
    
I found another thread on this list that suggested slapd might already be
running, but in my case a check of processes found nothing including "slapd"
or "ldap".  I also found threads suggesting that this kind of error can be
caused by IPv6, so I repeated everything with the option --enable-ipv6=no
with the same result.  I also tried adding the line ALL: ALL : ALLOW
in hosts.allow, which didn't help either.

Suggestions?  Thanks.