Avoid built-in OpenLDAP

[manu%netbsd.org@localhost (Emmanuel Dreyfus)]

Hello

I am trying to have SASL support in databases/php-ldap. That require not
linking aginast NetBSD builtin OpenLDAP, which does not have SASL
support.

Adding the opions.mk there to get it linking against
databases/openldap-client (which has an SASL option) is easy. However, I
face a more difficult problem later: Apache itself is linked against the
built-in OpenLDAP, and the PHP module will therefore use the built-in,
SASL-disabled libldap

How can that be fixed?

-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu%netbsd.org@localhost