OS X 10.5 & 64-bit

I have a new MacBook Pro running Leopard.  I comes with the Apache 2.2.8
web server installed.  It does not have mod_ruby installed.  I am trying
to build mod_ruby in order to build a new Web application framework based
on Ruby.

(Don't talk to me about Rails. I've used it.  I don't like it.  I would
need to install mod_ruby regardless.)

Anyway, I downloaded 1.2.6 of mod_ruby and built it with the GNU tools
provided by XCode 3.0, that being gcc 4.0.1 etc.

It built w/o errors after running configure.rb --with-apxs and
--with-apr-includes=3D/usr/include/apr-1 which is where Apple keeps the A=
PR
includes.  However, Apache crashes on startup when this module is loaded.

According to httpd -V, my version of Apache2 is a 64-bit executable.
(Architecture: 64-bit)

Questions:

1.  Does mod_ruby need to be built as a 64-bit bundle in order to run wit=
h
a 64-bit Apache2 server?

2.  Does the current (1.2.6) version of mod_ruby support 64-bit operation=
?

3.  After running configure.rb, the Makefile will build a universal bundl=
e
which supports ppc and i386 32-bit architectures.  When I hand-edit the
Makefile to build with -arch x86_64 -Wconversion, I get a ton of warnings
about 64-bit / 32-bit incompatibilities (thanks to -Wconversion, no
doubt).  Are these warnings important?

Note that I write software for a living and am simply looking for some
guidance.  Any patches I make to get this working, I would freely submit
to the current code maintainer.

Thanks,
Ken