updating gentoo apache

Seems less painless than it used to be.
Running a apache2ctl configtest command gives all sorts of errors like this:

Syntax error on line 170 of /etc/apache2/httpd.conf: Syntax error on line 4 of /etc/apache2/modules.d/70_mod_php5.conf: API module structure `php5_module' in file /usr/lib64/apache2/modules/libphp5.so is garbled - perhaps this is not an Apache module DSO?

So now i have to use equery b libphp5.so to figure out i need to recompile php for apache....weird. Shouldn't gentoo do this by itself?

update:
nasty little gentoo apache maintainer removed Listen 80 from httpd.conf, but (in my case) it needs it to remember to listen to port 80.