pthread building problem

Hi, I am developing an external php module which uses the pthread on FreeBsd. It works well when compiling a standalone php binary. But if I use the --with-apxs option to build the libphp4.so, then I got the following error: Syntax error on line 205 of /home/szhang/local/conf/httpd.conf: Cannot load /home/szhang/local/libexec/libphp4.so into server: /home/szhang/local/libexec/libphp4.so: Undefined symbol "pthread_gets pecific" /home/szhang/local/bin/apachectl start: httpd could not be started Could anyone let me know where to modify in order for it to link to pthread? I have added -pthread to nearly everywhere I can, but I am still getting the same problem. Thanks for any help in advance. Shao. -- Shao Zhang Tel: (02) 9209 4838 Software Engineer Fax: (02) 9209 4992 Redfern Broadband Networks (RBN) Mail: szhang@rbni.com