<img src="doxygen.png" alt="Doxygen" align=center border=0 width=110 height=53>
</a>, a working version of <code>g++</code> somewhere in the PATH, and
the <a href="http://www.gnu.org/software/coreutils/">GNU coreutils</a>.
+
+ In addition, to generate the pretty pictures, the
+ <a href=
+ "http://www.research.att.com/sw/tools/graphviz/download.html">Graphviz</a>
+ package will need to be installed.
(g++ is used to build a program which manipulates man pages. GNU versions
of find, xargs, and possibly sed and grep are used, just because the GNU
versions make things very easy.)