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Subject: Re: Linking problem with extension written in C++
From: jay@php.net (Jay Smith)


There are a few header files that you have to include with extern "C" so
their names get mangled properly into C++. Try wrapping php.h, php_ini.h
and info.h in extern "C" and see how that goes. 

I wrote up a little article on this sort of thing, so if you're interested,
check out http://www.tutorbuddy.com/software/phpcpp/phpcpp/.

J


Grzegorz Godlewski wrote:

> I have written an extension. Unfortunatelly I had to use some C++.
> After building I have some problems with 3 functions:
> zval_add_ref, REGISTER_LONG_CONSTANT, php_error_docref.
> If I include their body within my extension, it's Ok.
> Otherwise I got memory fault under PHP 4.3.0 and
> relocation error: /usr/lib/php/xerces.so: undefined symbol:
> _Z12zval_add_refPP12_zval_struct under 4.3.1. It has been built by gcc
> 3.2.2. Could anyone spend few minutes on it:
> http://ggodlewski.host.sk/download/php-xerces/php-xerces-0.1.tar.gz
> It requires xerces-c-2.2.0.
> Problematic places are marked by MEM_FAULT_HACK macro.
> 
> Thanks,
> Grzegorz Godlewski