I believe that HTML::Template has some C code in it, Update:(Not so) so when your install in the normal way, you will need to have a number of things on your machine to enable this (besides make) like a c compiler etc, etc.

I'm not running an OSX machine, but I bet you could get a copy of gcc and gmake on the net, and perform those installs, and then your HTML::Template install would work.

Update:
The GCC site says you should start with Apple's site:
http://gcc.gnu.org/install/specific.html#powerpc-*-darwin*

This will take up a bunch of space. However it will be useful for other XS based modules. The Apple Dev kit is analogous to this, along with other goodies too I'm sure.

And yes, if someone else compiled HTML::Template for OSX, your hardware, AND you had the libraries it linked into installed on your machine in the same spot, you could just install it without the normal installation mechanisms. Don't spend anytime thinking about this though...as This Is Not the Easy Way to Do It.

Cheers