\li The \c dia diagram editor (http://www.gnome.org/projects/dia/)
\li HTML \c tidy (http://tidy.sourceforge.net/)
\li The \c xsltproc XSLT processor (http://xmlsoft.org/XSLT/xsltproc2.html)
+ \li The \c graphviz library (http://www.graphviz.org)
The library is only tested with gcc-3.4 and 4.0 on Linux. On other POSIX platforms with a BSD