Error:  Can't load '/home/dr/Abby/XS/Mytest/blib/arch/auto/Mytest/Mytest.so' for module Mytest: /home/dr/Abby/XS/Mytest/blib/arch/auto/Mytest/Mytest.so: undefined symbol: _ZN7MyClassD1Ev at /usr/lib/perl/5.14/DynaLoader.pm line 184.

##</code><code>##

#ifndef MyClass_H
#define MyClass_H

class MyClass {
public:
	MyClass(int a, int b);
	~MyClass();
	int area();
private:
	int length;
	int width;
};

#endif

##</code><code>##

#include "myclass.h"

using namespace std;

MyClass::MyClass (int length, int width) {
	this->length = length;
	this->width = width;
}

int MyClass::area() {
	return this->length*this->width;
}
</class>

Makefile.PL
This I basically took from the Tutorial mentioned in the Into, and adjusted it to my changes. 
<code>
use ExtUtils::MakeMaker;
my ( $CC, $Verbose ) = ( 'g++', 1 );
WriteMakefile(
	NAME    => 'Mytest::myclass',
	SKIP    => [qw(all static static_lib dynamic dynamic_lib)],
	clean   => {'FILES' => 'libmyclass$(LIB_EXT) unitTest'},
	CC      => $CC, # Our CPP compiler
	LD      => '$(CC)',
	CCFLAGS => '-fPIC', # this instructs the CPP compiler to use "Position independence", basically a shared library, more details here
							# http://www.fpx.de/fp/Software/tcl-c++/tc+l-c++.html
);
sub MY::top_targets {
'
all :: static
pure_all :: static
static :: libmyclass$(LIB_EXT)

libmyclass$(LIB_EXT): $(O_FILES)
		$(AR) cr libmyclass$(LIB_EXT) $(O_FILES)
		$(RANLIB) libmyclass$(LIB_EXT)

bin: $(O_FILES)
		$(LD) $(O_FILES) -o unitTest
';
}

##</code><code>##

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include "ppport.h"
#include "myclass/myclass.h"


MODULE = Mytest		PACKAGE = Mytest		

MyClass*
MyClass::new(int a, int b)

int 
MyClass::area()

void 
MyClass::DESTROY()

##</code><code>##

use 5.014002;
use ExtUtils::MakeMaker;
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
my $CC = 'g++';

WriteMakefile(
	NAME              => 'Mytest',
	VERSION_FROM      => 'lib/Mytest.pm', # finds $VERSION
	PREREQ_PM         => {}, # e.g., Module::Name => 1.1
	CC                => $CC, # Our CPP compiler
	LD                => '$(CC)',
	($] >= 5.005 ?     ## Add these new keywords supported since 5.005
	  (ABSTRACT_FROM  => 'lib/Mytest.pm', # retrieve abstract from module
	   AUTHOR         => 'Dennis Rieber <dr@>') : ()),
	LIBS              => [''], # e.g., '-lm'
	DEFINE            => '', # e.g., '-DHAVE_SOMETHING'
	INC               => '-I.', # e.g., '-I. -I/usr/include/other'
  # Un-comment this if you add C files to link with later:
	# OBJECT            => '$(O_FILES)', # link all the C files too
	MYEXTLIB          => 'myclass/libmyclass$(LIB_EXT)',
#	TYPEMAPS          => ['perlobject.map' ],
);

sub MY::postamble {
'
$(MYEXTLIB): myclass/Makefile
	cd myclass && $(MAKE) $(PASSTHRU)
';
}

##</code><code>##

# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl Mytest.t'

#########################

# change 'tests => 1' to 'tests => last_test_to_print';

use strict;
use warnings;

use Test::More tests => 2;
BEGIN { use_ok('Mytest') };

my $class = new Mytest::MyClass(2,3);
is($class->area(), 6, 'area_ok')

#########################

# Insert your test code below, the Test::More module is use()ed here so read
# its man page ( perldoc Test::More ) for help writing this test script.

##</code><code>##

Changes
Makefile.PL
MANIFEST
Mytest2.xs
ppport.h
README
t/Mytest2.t
lib/Mytest2.pm