I'm working from the following example code using Apache 2.2.0 and Perl 5.8.7, and mod_perl 2.0.2 in a prefork configuration.
http://perl.apache.org/docs/2.0/user/config/custom.html#Examples

--- 8< ---
package MyPackage;
use Apache2::Module qw();
use Apache2::... a whole bunch more apache modules
our @DIRECTIVES = qw(directive1 foo bar etc);
Apache2::Module::add(__PACKAGE__, [ map { { name => $_ } } @DIRECTIVES
+ ]);
.
.
.
--- 8< ---
[download]

However I keep getting "Undefined subroutine &Apache2::Module::add called"

I've looked in the mod_perl2 source, and it definitely has references to that function. I don't have problems with any other core Apache2:: module - just this one. I'm pretty sure I've not typoed - I've checked it enough times.

What am I doing wrong?

Edit by holli: changed pre tags to code tags and links to []-notation.