this is not CXML per se, but I get the following error while building the test suite. I think it is on the dom2-dtd.
dom2-interfaces:
[style] Warning: the task name <style> is deprecated. Use <xslt> instead.
[style] Processing /Users/marcoxa/Projects/Lang/CL/cxml/2001/DOM-Test-Suite/lib/specs/Level-2/xml/core/dom-spec.xml to /Users/marcoxa/Projects/Lang/CL/cxml/2001/DOM-Test-Suite/build/dom2-interfaces.xml
[style] Loading stylesheet /Users/marcoxa/Projects/Lang/CL/cxml/2001/DOM-Test-Suite/transforms/dom2-combine.xsl
[style] : Error! file:/Users/marcoxa/Projects/Lang/CL/cxml/2001/DOM-Test-Suite/transforms/dom2-combine.xsl: line 137: Attribute 'name' outside of element.
[xmlvalidate] /Users/marcoxa/Projects/Lang/CL/cxml/2001/DOM-Test-Suite/build/dom2-interfaces.xml:417:109: The prefix "xml" cannot be bound to any namespace other than its usual namespace; neither can the namespace for "xml" be bound to any prefix other than "xml".
BUILD FAILED
/Users/marcoxa/Projects/Lang/CL/cxml/2001/DOM-Test-Suite/build.xml:1456: Could not validate document /Users/marcoxa/Projects/Lang/CL/cxml/2001/DOM-Test-Suite/build/dom2-interfaces.xml