pkgsrc/www/ap2-auth-external for apache 2.2

[Chris Ross <cross+netbsd%distal.com@localhost>]

  Hello there.  I was trying to build the external auth (aka authnz)  
module for use with apache 2.2. The Makefile for pkgsrc/www/ap2-auth- 
external indicates that it works with apache2.2, and it builds and  
installs.  But, the homepage (at http://unixpapa.com/mod_authnz_external/) 
 suggests that the version in pkgsrc (2.2.11) is for apache 2.0, and  
there's a 3.x version, named mod_authnz_external, for Apache 2.2

  Has anyone done any work to either (a) make pkgsrc/www/ap2-auth- 
external retrieve and build the apache2.2 version  
(mod_authnz_external-3.1.0.tar.gz), or (b) make a pkgsrc/www/ap22- 
authnz-external in pkgsrc?

  Thanks...

                   - Chris