Quanah, I just pulled down "openldap-2.3.43.tgz from www.openldap.org and ran "configure" and it did not error on the 4.3 backends. Attached is the "config.log" file. Phil -----Original Message----- From: Philip Bellino Sent: Tuesday, September 09, 2008 8:09 AM To: 'Quanah Gibson-Mount' Cc: &#39;openldap-software(a)openldap.org&#39; Subject: RE: Problem with 2.4.11 configure Quanah, Thank you for the response, but I am not running a hacked version of 2.3.39. It is "openldap-stable-20071118" that I pulled off of www.openldap.org back in March. As a safety check, I untar'd it again this morning and ran "./configure --with-tls --enable-ipv6", "make depend", "make", and "make install" with no problems at all. I have attached it here. Phil -----Original Message----- From: Quanah Gibson-Mount [mailto:quanah@zimbra.com] Sent: Monday, September 08, 2008 10:06 PM To: Philip Bellino; openldap-software(a)openldap.org Subject: Re: Problem with 2.4.11 configure --On Monday, September 08, 2008 3:43 PM -0400 Philip Bellino <pbellino(a)mrv.com&gt; wrote: That's because OpenLDAP deliberately ignores BDB 4.3, which is what you are using: ol_cv_bdb_major=4 ol_cv_bdb_minor=3 You must be building a hacked version of OpenLDAP 2.3.39 if it's accepting 4.3... --Quanah -- Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc -------------------- Zimbra :: the leader in open source messaging and collaboration