Is there anyone who got tomcat 4.0.3 and Apache 2.0.35 running fine together?

Im just trying to compile mod_webapp.so
It appears that it compiled without any error, but in hhtpd.conf, when I do

LoadModule webapp_module modules/mod_webapp.so
AddModule mod_webapp.c

I got this error when I test my syntax with apachectl configtest:

Syntax error on line 219 of /usr/local/apache2/conf/httpd.conf:
Cannot load /usr/local/apache2/modules/mod_webapp.so into server: /usr/local/apache2/modules/mod_webapp.so: undefined symbol: wa_pool

Can you, guys, help me?
Thanks

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