Compile failure on IA64 (impossible register constraint in 'asm')

[Agostino Sarubbo]

Hello, 

as reported downstream[1] by me, various xf-86-video-* packages fail during 
the compile phase with the following error:

/usr/include/xorg/compiler.h:1412:5: error: impossible register constraint in 
'asm'

The proposed patch at comment 1 works for me. What do you think about?

Note: please CC me in your answer(s) because I'm not subscribed

[1]: https://bugs.gentoo.org/show_bug.cgi?id=447152
-- 
Agostino Sarubbo / ago -at- gentoo.org
Gentoo Linux Developer