Greg,
Does the directory /usr/include/libxml2 exist?
If so, does /usr/include/libxml2/libxml exist?
If so, does /usr/include/libxml2/libxml/parser.h exist?
Does "xml2-config --cflags --libs" yield any useful output?
- Anthony
For a description of the software, to download it and links to
project pages go to http://liblouis.org