Well, "httpd" doesn't seem to be a valid command, but "apache -l" does give:
Compiled-in modules:
http_core.c
mod_so.c
mod_macro.c
suexec: enabled; valid wrapper /usr/lib/apache/suexec
// joey tsai
:: Rick Rezinas ::
> does running
> httpd -l
>
> show the following modules installed?
> http_core.c
> mod_so.c