Re: (ITS#3577) back-ldap module broken

[hyc@symas.com]

One more detail - the back-ldap module will only work if 
--enable-dynamic is also specified for configure. I.e., back-ldap also 
depends on symbols from libldap_r that slapd itself does not use. If 
libldap_r is linked statically, those symbols will also be missing.

>back-ldap depends on librewrite, which is a static library. When built as a
>dynamic module, librewrite must be explicitly linked in to satisfy a variety of
>symbol references. Usually libtool complains about the nonportability of mixing
>static and dynamic code, but it goes ahead anyway. On x86_64 platforms it just
>silently drops the static library from the link step. The resulting back-ldap
>module is unusable, there are unresolved references to rewrite_info_init when
>you attempt to load it in slapd.
>
>The same issue may affect the rwm overlay in 2.3, although with the
>SLAP_AUTH_REWRITE code in place I think all of the necessary symbols will be
>present in the slapd binary. Even so, it would probably be best to make
>librewrite a shared library.
>  
>
-- 
  -- Howard Chu
  Chief Architect, Symas Corp.       Director, Highland Sun
  http://www.symas.com               http://highlandsun.com/hyc
  Symas: Premier OpenSource Development and Support