Problems Xdebug2 fails to phpize and to configure on FreeBSD 5.2.1 with PHP 4.3.8

Configuration :

#php -v
PHP 4.3.8 (cli) (built: Sep 17 2004 23:53:32)
Copyright (c) 1997-2004 The PHP Group
Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies

#/usr/local/lib/php/build/shtool -v
GNU shtool 1.6.2 (02-Nov-2002)

#/usr/local/bin/shtool -v
GNU shtool 2.0.1 (11-Aug-2004)


#cd /usr/local/src/
#tar xvf /usr/local/src/xdebug-2.0.0beta1.tar
#cd /usr/local/src/xdebug-2.0.0beta1


#phpize --clean
#phpize
autoheader: `config.h.in' is created
-f: not found

a) There seems to be an error on line (/usr/local/bin/phpize) :
libtoolize=`$builddir/build/shtool path glibtoolize libtoolize`
$libtoolize -f -c || exit 1
b) Even when symlink shtool v2.0.1 as replacement for v1.6.2, same
error occurs

# ./configure --enable-xdebug
configure: error: cannot run /bin/sh ./config.sub

# make
make: no target to make.

problems !

c) Do I need to patch phpize fro FreeBSD 5.2.1 ?
d) Can You pear Xdebug version 2 somehow, seems only v1.3 can ?

Thanks in advance,

Jurgen.