Description:
------------
This site prepends the full path to the site's directory 
for site-specific include files with the following code 
in the file /files/client/
global_fellowship_search/proto1/include/init.php

$site_include_path = dirname(__FILE__);
$sys_include_path = ini_get('include_path');
ini_set('include_path', $site_include_path . ':' .  
$sys_include_path);

which creates an include path of '/files/
client/global_fellowship_search/proto1/include:.:/usr/
local/lib/php:/usr/local/lib/mis:/usr/local/lib/
eclipse'

When attempting to include the file /files/
client/global_fellowship_search/proto1/mail/
forgot_pass.mail relative to the site's prepended 
include directory with "include_once '../mail/
forgot_pass.mail';", PHP fails to find the file.  
Supplying an absolute path to the file works.  It just 
seems like PHP will not respect crawling up a '..' 
parent directory link for any path within the 
include_path except for '.'

Note that this code was placed in the 'index2.php' file 
just for simplicity in demonstration; in implementation 
this inclusion code is held within another file in the 
include/ directory which is included several different 
directory levels.

Reproduce code:
---------------
(Within /files/client/
global_fellowship_search/proto1/index2.php)

include_once '../mail/forgot_pass.mail';

Expected result:
----------------
Inclusion of /files/client/
global_fellowship_search/proto1/mail/forgot_pass.mail

Actual result:
--------------
Warning: main(../mail/forgot_pass.mail): failed to open 
stream: No such file or directory in /files/client/
global_fellowship_search/proto1/index2.php on line 5

Warning: main(): Failed opening '../mail/
forgot_pass.mail' for inclusion (include_path='/files/
client/global_fellowship_search/proto1/include:.:/usr/
local/lib/php:/usr/local/lib/mis:/usr/local/lib/
eclipse') in /files/client/global_fellowship_search/
proto1/index2.php on line 5