Lua and libusb on Raspberry Pi

[Robert Brown <rebrown@...>]

Hi
I wish to run a couple of lua scripts written by a competent person (as 
opposed to noob me) on a raspberry pi (kernel 3.10.25+) using a usb 
connection from an Arduino shield. The scripts were originally written 
to read data from the Arduino uart port and I want to read from the usb 
port instead so I will need to do some hacking.

First step after installing lua was to get libusb installed.
I chose to use libusb-1.0.19 from 
http://sourceforge.net/projects/libusb/files/latest/ which compiled ok 
from a tar.gz file.

Then I did
cp /home/pi/libusb-1.0.19/libusb/.libs/libusb-1.0.so libusb.so

and then
sudo cp /home/pi/libusb-1.0.19/libusb.so /usr/local/lib/lua/5.1/

At this point I get an error when I run
lua
Lua 5.1.5  Copyright (C) 1994-2012 Lua.org, PUC-Rio
> require('libusb')
error loading module 'libusb' from file './libusb.so':
    ./libusb.so: undefined symbol: luaopen_libusb
stack traceback:
    [C]: ?
    [C]: in function 'require'
    stdin:1: in main chunk
    [C]: ?

Can anyone offer some advice on where I go from here?

Thanks