[Chromium-dev] glXGetProcAddressARB and IRIX

[Sean A. <sea...@ll...>]

One thing that's been really annoying about Chromium and IRIX has been 
the use of glXGetProcAddressARB.  It doesn't exist on IRIX.

In hopes of learning more about this issue, I wandered google for a 
while.  I found the following article very intersting: 
http://lists.debian.org/debian-devel/2001/debian-
devel-200107/msg00046.html

It suggests that if we don't have glXGetProcAddress, we should just 
dlopen(NULL, ...) and use the local gl library.  The snippet of code 
that might replace the call would be:

	#ifndef HAVE_GLXGETPROCADDRESS
	#include <dlfcn.h>
	void*
	glXGetProcAddressARB(char *name)
	{
	    void *dlhand;

	    if ((dlhand = dlopen(NULL, RTLD_LAZY))) {
		void *handle;

		handle = dlsym(dlhand, name);
		dlclose(dlhand);
		return handle;
	    }
	    return NULL;
	}
	#endif

This allows things like "tiletest" to at least link on IRIX.  However, I 
have almost *zero* knowledge about glXGetProcAddress, so I wanted to see 
if someone more knowledgeable than me on this list had any comments 
about this.

-Sean

--
sea...@ll...