SWIG
====
swig -c++ -perl5 -Imacopt++ base.i

INSTALL
=======
perl Makefile.PL PREFIX=< desired installation path >
make
make test
make install

About "PREL_PL_NONLAZY"
=======================
http://www.perl.com/pub/a/2001/03/p5pdigest/THISWEEK-20010312.html