The module name is changed to mm_auth_ldap_module in v3.x.  I did that becuase Apache 2.x has
a ldap auth module and it is named the same as that of mine. 

So keep a note of it if you're adding LoadModule line in httpd.conf file by hand.
Exmaple:

# apache 1.3.x
LoadModule mm_auth_ldap_module libexec/mod_auth_ldap.so
# apache 2.x
LoadModule mm_auth_ldap_module modules/mod_auth_ldap.so

Compile
=======
  Apache 1.3.x example:
    $ ./configure --with-mem-cache \
            --with-apache-dir=/usr/local/apache1 \
            --with-ldap-dir=/usr/local/openldap \
            --with-apxs \
            --with-apache-ver=1

  Apache 2.x example:
    $ ./configure --with-mem-cache \
            --with-apache-dir=/usr/local/apache1 \
            --with-ldap-dir=/usr/local/openldap \
            --with-apxs \
            --with-apache-ver=2

    ./configure --help for more info


Changes in v3.4
===============

    * Support for OpenDLAP ldaps:// is added.

    Turn it on with LDAP_OpenLDAP_Initialize On.  If you do that, you must 
    specify the LDAP_server as: LDAP_Server ldaps://ldap.foo.com:636
    Also the ldap server name has to be the same fqdn as specified in the 
    server's certificate (look at CN in the Subject in the certificate).  It's 
    added as some people run their LDAP server that way. It doesn't give 
    any extra security.

    Better yet, you can use LDAP_StartTLS On and don't have to modify
    LDAP_Server. 

    ** Note about SSL with StartTLS and ldaps://
        From security perspective, there's no difference.  If you start the 
        openldap server with ldaps://, It'll accept connection to a SSL 
        port. On the ther hand with StartTLS, encryption is negotiated 
        over the same standard ldap port, that means you can run plain 
        text and encrypted sessions over the same ldap port. ldaps:// is a 
        hack and not a standard, StartTLS is part of LDAPv3.

        Referece:
            http://www.openldap.org/lists/openldap-software/200201/msg00042.html
            http://www.openldap.org/lists/openldap-software/200206/msg00387.html

ChangeLog
v3.4

- If compiled with OpenLDAP and if OpenLDAP SDK is compiled
  with SSL/TLS support, SSL connection can be made initialized
  to LDAP with the directive 'LDAP_OpenLDAP_Initialize On'. 
  Thanks to Lars Bohn.
  (Mar-12-2005)

- Added support for Novelll C LDAP SDK. configure will detect it automatically.
  SSL support for Novell SDK is not added yet.
  (Mar-12-2005)

- Filter size is increased to 512 bytes from 256 bytes.
  (Mar-12-2005)