Re: [PHP-DEV] MAC OS X and DSOs

[Dan Kalowsky]

This behavior is mostly likely a result of the changes to the included 
system libraries in 10.3.  The truth to the matter is now dlcompat is 
distributed with OS X (as of 10.3) so most of the library handling code 
Marko and I wrote probably is no longer necessary for future 
generations of OS X (please note this is untested).  It is necessary 
though for those running 10.2 (and earlier), and there do seem to be a 
great many of them still.

Looking at your change though, I don't believe it should cause much 
damage.

On Jun 3, 2004, at 9:43 AM, Andi Gutmans wrote:
Hi guys,
There seem to be some problems with loading shared libraries on the 
MAC OS X platform. It seems that ./configure on MAC OS X defines 
HAVE_LIBDL in php_config.h which causes the following code in zend.h 
not to be used:
#elif defined(HAVE_MACH_O_DYLD_H)
# define DL_LOAD(libname)           zend_mh_bundle_load(libname)
# define DL_UNLOAD(handle)          zend_mh_bundle_unload(handle)
# define DL_FETCH_SYMBOL(h,s)       zend_mh_bundle_symbol(h,s)
# define DL_ERROR                   zend_mh_bundle_error
# define DL_HANDLE                  void *
# define ZEND_EXTENSIONS_SUPPORT    1

After testing this stuff quite a bit it seems that in order for DSO's 
to work correctly on MAC OS X they should be defined. I am thinking of 
changing the following code in zend.h:

#if defined(HAVE_LIBDL)
to
#if defined(HAVE_LIBDL) && !defined(HAVE_MACH_O_DYLD_H)
Anyone have additional insight on this?
Andi
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