Trouble installing mailparse-0.9.1

I am having trouble installing mailparse-0.9.1. ----------------------- $ pear config-set preferred_state beta $ pear install mailparse downloading mailparse-0.9.1.tgz ... ...done: 33,443 bytes 9 source files, building running: phpize PHP Api Version : 20020918 Zend Module Api No : 20020429 Zend Extension Api No : 20021010 building in /var/tmp/pear-build-root/mailparse-0.9.1 running: /tmp/tmpRVy75K/mailparse-0.9.1/configure running: make Warning: opendir(modules) [http://www.php.net/function.opendir]: failed to open dir: No such file or directory in Builder.php on line 261 no `modules' directory found ----------------------- The directory in question is /var/tmp/pear-build-root/mailparse-0.9.1/modules. Installing other packages worked fine. Can anyone see what I am doing wrong here ? ----------------------- $ php -v PHP 4.3.0 (cli) (built: Feb 5 2003 00:45:20) Copyright (c) 1997-2002 The PHP Group Zend Engine v1.3.0, Copyright (c) 1998-2002 Zend Technologies $ uname -mrs FreeBSD 4.7-STABLE i386 ----------------------- Thanks, Bjorn Swift