Canonicalization software

I'd like to compare the output of the canonicalizer in XOM with an 
independent effort, since there doesn't seem to be any official test 
suite for canonical XML.

So far I've established that IBM's XSS4J and Elcel's xmlcanon are too 
buggy to be useful. libxml may work, but it's not clear if there's 
any user interface that lets me canonicalize samples aside without 
writing C code. Is there any canonicalization program which runs on 
Linux, does not require a complicated build process, and provides a 
simple command line interface?
-- 

   Elliotte Rusty Harold
   
   Effective XML (Addison-Wesley, 2003)
   http://www.cafeconleche.org/books/effectivexml
   http://www.amazon.com/exec/obidos/ISBN%3D0321150406/ref%3Dnosim/cafeaulaitA