FR 2.1.6 doesnt build under RHEL3

[Alan DeKok]

Alan Buxey wrote:
> LDAP headers etc changed a while back for some new functionality

  Arg...

> I'm afraid at this point I can go no further than this...because my autoconf foo isnt that
> good at all....and when i tried putting this stuff into the rlm_ldap/configure.in I found
> that that file seems to be horrible broken in many other places (autoconf just breaks!)
> and my foo really is weak (and I cannot test all the ldap requirements either).

  I've checked fixes into git.  Please try that, or the "tar" file on
http://git.freeradius.org/pre/ in a bit...

  Alan DeKok.