Re: [INTERNALS-WIN] Developing PHP extensions on Windows with VC++, linking problems

Hi

2009/5/11 Eugenio Tacchini <[email protected]>:
> At 08.26 11/05/2009 +0200, Kalle Sommer Nielsen wrote:
>>
>>Thats because your header file does not define the module pointer,
>>checkout any extension and you should see something like:
>>
>>extern zend_module_entry <myext>_module_entry;
>>#define phpext_<myext>_ptr &<myext>_module_entry
>
> Hello Kalle,
> thanks for your reply.
> My header file, stdafx.h, just contains these lines:

This is defined in the php_<myext>.h file, so your php_<myext>.h file
may looks like:

#ifndef HAVE_MYEXT_H
#define HAVE_MYEXT_H

extern zend_module_entry myext_module_entry;
#define phpext_myext_ptr &myext_module_entry;

#endif

And in your main c file:

#include "php.h"
#include "php_myext.h"

#ifdef COMPILE_DL_MYEXT
ZEND_GET_MODULE(myext)
#endif

/* arginfo, zend_function_entry, zend_module_entry etc. */

/* extension implementation */


As for your config.w32, you should use ARG_[WITH|ENABLE] to add the
ability to enable and disable the extension, especially if your
planning to publish it somewhere. Example:

/* --enable-myext (shows MyExt support on configure --help), and
defaults to not enabled */
/* enable is used for extensions that does not require any external
libraries, with is used otherwise, e.g. gd */
ARG_ENABLE('myext', 'MyExt support', 'no');

/* ARG_ENABLE creates PHP_MYEXT and PHP_MYEXT_SHARED (both uppercase) */
/* PHP_MYEXT is the value of --enable-myext=X, and 'yes', depending on
the default if no arg set */
/* PHP_MYEXT_SHARED is a boolean */
if(PHP_MYEXT != 'no')
{
	EXTENSION('myext', 'myext.c someotherfile.c et.c');
}

You don't need to include zend_config.w32.h, php.h gets the
config.w32.h files already (from main/ and Zend/)

>
> #pragma once
>
> // Include the Zend Win32 header and the general PHP header
> #include "zend_config.w32.h"
> #include "php.h"
>
> so, the only thing I have to do is to add
> extern zend_module_entry my_extension_module_entry;
> #define phpext_my_extension_ptr &my_extension_module_entry
>
> at the end of the file?
>
> Thanks.
>
> Eugenio
>
>
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>



-- 
Kalle Sommer Nielsen
[email protected]