4.6-stable : libc.so.4 upgrade to libc.so.6 question

[Kris Yates]

Hello,

First of all, I dont think I am subscribed to the list.  Please send 
your replies directly to my email address, as I dont have time to check 
the list archives as often as I would like.

I have a 4.6-stable box, which seems to be running fine.  I installed a 
PHP extension recently, which requires libc.so.6.  My box currently uses 
libc.so.4.  Two questions..

1)   When I upgrade from libc.so.4 to libc.so.6, do I need to recompile 
anything like mail or web servers?  I am running php 4.3.2, Apache 1.3, 
the latest stable postfix port and some other basic  stuff.

2)   I assume I upgrade the glib port to upgrade libc.so, right?  What 
worries me about just "going for it" is the following info from 
"pkg_version -vv | grep lib":

glib-1.2.10_5                       <   needs updating (port has 1.2.10_9)
glib-1.3.1                          >   succeeds port (port has 1.2.10_9)

My last install supercedes the port.  I dont remember why or how.  
Anyway, I am nervous about breaking something.. it has been awhile.  Can 
someone show me the light in the way of good advise to safely move to 
libc.so.6 from libc.so.4 in relation to info herein?  :) Thanks,

Kris
kris at 2binteractive.com