undefined symbol: apr_tempy_dir_get when loading mod_auth_digest module

[Tianyin Xu <tixu@xxxxxxxxxxx>]

Hi, all,

I want to load the mod_auth_digest module into my Apache httpd, here is my load directive in my httpd.conf (line no: 192)

LoadModule auth_digest_module modules/mod_auth_digest.so

However, I encountered the following information:

httpd: Syntax error on line 192 of /home/tianyin/apache-2.4.1/conf/httpd.conf: Cannot load /home/tianyin/apache-2.4.1/modules/mod_auth_digest.so into server: /home/tianyin/apache-2.4.1/modules/mod_auth_digest.so: undefined symbol: apr_tempy_dir_get

Does the mod_auth_digest module rely on other modules? I didn't find the information from manual.

Thanks a lot,

Tianyin

-- 
Tianyin XU,
http://cseweb.ucsd.edu/~tixu/