FreeBSD 7/8 and AMD/automounter with LDAP support

[O. Hartmann]

Just sneaked through the /usr/src/contrib/amd code base of the amd 
automounter and found amd is naturally not built with LDAP support.

Well, how can I configure 'make world' to automatically build 'amd' with 
LDAP support (as I can do this with sendmail being build with 
cyrus-sasl-support via some knobs in /etc/make.conf)?
I did not understood whether amd has full LDAP support or is lacking in 
some code, so I appreciate any hint or help.

Thanks in advance,

Oliver