G Brandon Hoyt wrote:

[...]

> I came across RUDL but can't seem to get it to build on my
> machine.  Here's the output I get when I build it:
> http://pastie.org/877083

See http://aur.archlinux.org/packages.php?ID=24767

ruby-1.9.1.patch is the patch you need to build rudl-0.8. You may 
need the gcc4.patch from that page as well, at least on Arch 
Linux.