problem with compiling php 4.4.1 with debugging symbols

Hi

i'v been trying to compile php with debugging symbols using:
./configure [...] --enable-debug [...], which is generating problem. Trying run httpd generates error: 

Cannot load /opt/modules/libphp4.so into server: /opt/modules/libphp4.so: undefined symbol: stat

when option 'enable-debug' is removed - everything works fine.

Thx in advance for any help

begin:vcard
n:Jędruch;Wojciech 
tel;work:+48585215883
org:Wirtualna Polska S.A.;Research & Development
adr:;;;;;;
email;internet:[email protected]
title:junior programmer
version:2.1
end:vcard