https://bugs.freedesktop.org/show_bug.cgi?id=82162
--- Comment #29 from sarnex commendsarnex@gmail.com --- (In reply to comment #28)
That's right -- it's working now. No need for PPAs on Arch when you have the AUR. There's also a pacman repository for mesa-git that compiles daily so it's just a matter of installing lib32-mesa-git and mesa-git.
Ah, I'm a debian-based plebian. Glad to see it works.