/usr/include/xmltooling/util/ is in libxmltooling-dev 1.4.2-1.
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/usr/include/xmltooling/util/CurlURLInputStream.h
/usr/include/xmltooling/util/DateTime.h
/usr/include/xmltooling/util/NDC.h
/usr/include/xmltooling/util/ParserPool.h
/usr/include/xmltooling/util/PathResolver.h
/usr/include/xmltooling/util/Predicates.h
/usr/include/xmltooling/util/ReloadableXMLFile.h
/usr/include/xmltooling/util/ReplayCache.h
/usr/include/xmltooling/util/StorageService.h
/usr/include/xmltooling/util/TemplateEngine.h
/usr/include/xmltooling/util/Threads.h
/usr/include/xmltooling/util/URLEncoder.h
/usr/include/xmltooling/util/XMLConstants.h
/usr/include/xmltooling/util/XMLHelper.h
/usr/include/xmltooling/util/XMLObjectChildrenList.h