On Fri, 27 Oct 2006 12:12:46 -0400
"Brian J. France" <[EMAIL PROTECTED]> wrote:

> On Oct 27, 2006, at 11:57 AM, Michael B Allen wrote:
> > Is there any way to determine exactly which version of PHP first  
> > used the
> > RTLD_DEEPBIND flag to dlopen(3)? Can webcvs be used somehow. I *think*
> > it's between 4.3 and 4.4 but I'm not sure.
> 
> 4.4:
> 
> http://cvs.php.net/viewvc.cgi/Zend/zend.h?view=log&pathrev=PHP_4_4
> 
> and
> 
> 5.1:
> 
> http://cvs.php.net/viewvc.cgi/ZendEngine2/zend.h? 
> view=log&pathrev=PHP_5_1
> 
> and I plan on removing it from our internal builds as it causes more  
> problems than I think it fixes (on RHEL only).

Err, that'll break my module.

My module is linked with Heimdal kerberos. I need Heimdal because it
has proper support for SPNEGO (amnong other reasons). But if PHP or
any other module is linked with a different Kerberos library (e.g. MIT)
symbol collisions will occur resulting in all sorts of strange behavior.

If you are going to remove RTLD_DEEPBIND, can you recommend an alternative
method for linking a module so that said symbol collisions do not result?

What problems are you seeing with RTLD_DEEPBIND?

Perhaps it could be an extension specific ini option like:

  extension = mymodule.so:RTLD_DEEPBIND

or

  extension.deepbind = mymodule.so

?

Mike

-- 
Michael B Allen
PHP Active Directory SSO
http://www.ioplex.com/

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