Also included in the package is the open source Expat XML parser (http://expat.sourceforge.net). This is a small, lightweight parser that contains basic SAX parsing functionality. The source file containing the Expat parser interface is rtXmlExpatIF.c in the rtxmlsrc subdirectory. The full source code and license for this parser can be found in the expatsrc subdirectory.

To use this library instead of libxml2, the xmlparser.mk file must be modified to include the file paths to the expat files. A file names xmlparser-expat.mk is included in the distribution that should have all teh correct settings. This file can simply be renamed to xmlparser.mk to use the Expat parser.