How to compile new functions submitted to mailing list

[Keith Goodman]

All sorts of interesting functions are submitted to the Octave mailing
lists. How do I compile them? Does the answer depend on how the
function was meant to be called (as a dynamically linked function,
built-in function, etc.)?

For example I would like to try eigs. My computer is setup to complie
Octave from source. The source code for eigs.cc

http://www.octave.org/mailing-lists/octave-maintainers/2005/405

starts out like this

// XXX FIXME XXX. Comment out HAVE_CONFIG_H for build outside of octave!!
//#ifdef HAVE_CONFIG_H
#include <config.h>
//#endif

#include <cfloat>
#include <cmath>

#include "ov.h"
#include "defun-dld.h"
#include "error.h"
#include "f77-fcn.h"
#include "quit.h"
#include "variables.h"
#include "ov-re-sparse.h"
#include "ov-cx-sparse.h"
#include "SparseType.h"
#include "oct-map.h"



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