[PATCH]: Fix GLX crashes on RISC cpus.

[David Miller]

From: Daniel Stone <daniel at fooishbar.org>
Date: Thu, 27 Dec 2007 07:43:52 +0000

> On Wed, Dec 26, 2007 at 10:44:21PM -0800, David Miller wrote:
> > RISC chips that trap on unaligned loads and stores need to
> > define __GLX_ALIGN64.  This used to get added to the cflags
> > in the old *.cf files but it no longer does in the modular
> > X server.
> 
> This is the wrong approach for modular; instead of hardcoding a list of
> CPUs that throw errors on unaligned accesses, you could just check
> whether or not unaligned accesses work.

I wish someone had said this over a year ago to Jurij instead of
letting the patch and the issue rot all this time.

> > Also, Alpha needs to pass -mieee to the compiler as well.
> 
> How portable is this?

I think it's widely usable on Alpha compilers.

But that's not important because I think the way to fix this is to not
continue deferring the bug fix until it's perfect, but rather to put
something that fixes the crashes and misbehaviors into the tree now
and refine it over time as needed.