[PATCH 3/4] Generate swrast GLX extension list, rather than using a fixed list

[Jeremy Huddleston Sequoia]

On Jul 25, 2012, at 6:45 AM, Jon TURNEY <jon.turney at dronecode.org.uk> wrote:
>>> +#ifndef __APPLE__
>>> +    __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIS_multisample");
>>> +#endif
> 
> As far as I can tell, this conditional is entirely pointless (now, I'm
> guessing that there is some historical reason for it), as this GL provider is
> never used by Xquartz.  Perhaps you can confirm that?

Correct, it's not used by XQuartz, but it is used by other servers (like Xorg) which can run on darwin. 

 __APPLE__ just means that it's being built for OS X, not XQuartz.  

It originally entered xserver with e56e24af252bd3b8e58076adf0f8eabf1103f187, and I changed it from __DARWIN__ to __APPLE__ in 54654815fa5e59b25cfd1fa72610120b72c10175.  But I don't know *why* it is there, and it doesn't really make sense to me.  The e56e24af commit was http://lists.x.org/archives/xorg-commit/2004-June/001142.html:

So that doesn't give much clue.

Giving it a punt is the right thing to do.  If it has fallout, I'm sure the 1 person who cares about it will say something.

--Jeremy