[Dovecot] autoconf check for ldap not linking with -lber

[Jorgen Lundman]

Maybe not a big deal, but generally you (used to?) link against both:

configure:31276: checking for ldap_init in -lldap
configure:31311: gcc -o conftest -std=gnu99 -I/usr/local/include -Wall -W -Wmiss
ing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat
=2 -Wbad-function-cast -I/usr/sfw/include    -L/usr/local/lib conftest.c -lldap
   -lsocket -lnsl -lrt -lsendfile >&5
Undefined                       first referenced
  symbol                             in file
ber_sockbuf_io_readahead            /usr/local/lib/libldap.so
ber_sockbuf_alloc                   /usr/local/lib/libldap.so
ber_sockbuf_io_fd                   /usr/local/lib/libldap.so

But could be special situation as my LDAP version is fixed, due to production 
environment using it. It also failed when OpenLDAP was linked against OpenSSL, 
since it does not try with the SSL libraries.

Lund

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