[Pdns-users] Building pdns RPMs using custom LDAP libraries/headers

[a b]

Without looking at the SRPM, it  is  difficult  to  diagnose  the
problem. I might look at it later, if I have some time. Please be
advised that this SRPM is a third party contributed SRPM, not the
canonical  source  package.  The only package which could be con-
sidered canonical would be one from either redhat or CentOS.  For
all intents and purposes, you might have uncovered a bug.

> /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64/libldap_r.so:
> undefined reference to `ber_sockbuf_io_udp'
> collect2: ld returned 1 exit status

The link editor cannot find the  "ber_sockbuf_io_udp"  symbol.  I
need you to perform the following:

ldd /usr/lib64/libldap_r.so
nm /usr/lib64/*.so | fgrep ber_sockbuf_io_udp

See if you can find out if any shared  object  library  has  this
symbol in it. You can use nm(1) and fgrep(1) to accomplish that.

If that symbol cannot be found, then we have an answer.

> $ ls -la /usr/lib64/ | grep ldap
> drwxr-xr-x. 4 root root 4096 Mar 11 16:06 evolution-openldap
> lrwxrwxrwx. 1 root root 10 Sep 21 2012 libldap-2.4.so.2 ->
> libldap.so
> -rw-r--r-- 1 root root 781914 Mar 20 15:57 libldapbackend.a
> -rwxr-xr-x 1 root root 1151 Mar 20 15:57 libldapbackend.la
> -rwxr-xr-x 1 root root 379419 Mar 20 15:57 libldapbackend.so
> lrwxrwxrwx. 1 root root 12 Sep 21 2012 libldap_r-2.4.so.2 ->
> libldap_r.so
> lrwxrwxrwx 1 root root 29 Mar 11 16:06 libldap_r.so ->
> /lib64/libldap_r-2.4.so.2.5.6
> lrwxrwxrwx 1 root root 27 Mar 11 16:06 libldap.so ->
> /lib64/libldap-2.4.so.2.5.6
> -rwxr-xr-x 1 root root 40320 Feb 22 09:49 libsmbldap.so.0

That you have libraries there means  absolutely  nothing,  unfor-
tunately.  You are getting the error because the link editor can-
not locate the "ber_sockbuf_io_udp" symbol during the link phase.