[Samba] samba-3.0.0 Beta3 LDAP error

Jean-Rene Cormier jean-rene.cormier at cipanb.ca
Fri Aug 8 11:24:00 GMT 2003

On Fri, 2003-08-08 at 02:46, Matt Bednarik wrote:
> I installed samba 3.0.0 beta3 on FreeBSD 5.0 alpha RELEASE, with
> ./configure --with-ldapsam --with-quotas --prefix=/usr/local/ldapsamba,
> the smbd log told me this:
> 2003/08/07 07:37:29, 0] lib/module.c:smb_load_module(40)
>   Error loading module '/usr/local/ldapsamba/lib/pdb/ldapsam.so': Cannot
> open "/usr/local/ldapsamba/lib/pdb/ldapsam.so"
> [2003/08/07 07:37:29, 0] passdb/pdb_interface.c:make_pdb_methods_name(447)
>   No builtin nor plugin backend for ldapsam found
> [2003/08/07 07:37:29, 1] passdb/pdb_interface.c:make_pdb_context_list(537)
>   Loading ldapsam:ldap:// failed!
> I did a updatedb and then did a locate ldapsam.so and it found nothing.
> That file does not exist in that directory either.

I was having problem with this also but I found a work-around, the
problem is when you run the configure script it tests to see if it can
compile a test program against the LDAP libraries but if it can't, it
won't tell you. When you run configure check for a place where it says
it's testing for LDAP support and check the few lines after it, chances
are it'll say it can't find ldap or something like that.

If you want to test your LDAP libraries yourself make a small c file
like this (I'm not a programmer at all so I'm not even sure if I'm using
the function correctly or if there's mistake in the program but it
compiled on my computer, that's the important part, I'm sure a
programmer would find mistakes in this 10 lines of code):

#include <stdio.h>
#include <ldap.h>

int main()

ldap_init("" 389);

return 0;

Compile it using "gcc -lldap -o file file.c" If you can't compile it
then Samba won't be able to compile itself with LDAP support.

So now you have two options, modify the Samba compile scripts or the
OpenLDAP compile scripts. I choose the later since it'll solve problems
when linking other programs against the OpenLDAP library (and I tried to
modify the Samba compile scripts but had no luck with that).

I've attached the patch I used to compile OpenLDAP so it would link
against the other libraries it needs so you can compile the test program
(and Samba) against the LDAP libraries. It's based on a Redhat patch
since when I tried to compiled Samba on Redhat it worked but the Redhat
patch didn't work out of the box when I tried to use it to compile
OpenLDAP on Slackware. Also I'm not sure that's the right way to do it
but it works for me!

Let me know if it works.

Jean-Rene Cormier

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