Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:15770
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Mime-Version: 1.0 (Apple Message framework v619.2)
Content-Transfer-Encoding: 7bit
Message-ID: <ac067de4941c880449078235643d0d5a@mac.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed
To: internals@lists.php.net
Date: Sun, 3 Apr 2005 23:00:44 +0200
Subject: os x linking issue with extension
From: lastobelus@mac.com (Michael Johnston)

(I'm not sure if extension development belongs on this list, but I 
couldn't find a better one. If there is a more appropriate list, could 
someone please point me to it?)

I am working on an extension that is os x specific & relies on Carbon & 
ApplicationServices (it is a port of appscript, to allow writing 
applescript applications in php).

I used ext_skel to create an extension, and ran phpize. In the 
config.m4, I put:

   PHP_ADD_FRAMEWORK(Carbon)
   PHP_ADD_INCLUDE("/Developer/Headers/FlatCarbon")

but when I attempt to use carbon api I get an undefined symbol error 
from the dynamic linker.

looking at the configure script generated by phpize, it seemed to me 
that the PHP_ADD_FRAMEWORK macro is not actually being used to affect 
the build. I attempted to change this by manually editing the configure 
script to add $PHP_FRAMEWORKS to the arguments passed to linktool 
mode=link, and added   PHP_VAR_SUBST="$PHP_FRAMEWORKS". Using make 
--debug, I verified that linktool mode=link was now being called with 
the -framework param, but I still get the same undefined symbol error.

I don't know much about how the dynamic linker works. What do I need to 
do to have extension .so link to carbon?

I am using the 5.0.3 release source package of php, os x 10.3.8, gcc 3.3


Michael Johnston