Comment # 7 on bug 99553 from Vedran Miletić

(In reply to darkbasic from comment #6)
> Thanks, I would love to have at least Darktable working. With the CPU it
> takes 30+ seconds to process a single photo, compared to 0.5 seconds when
> using OpenCL.

If you are up for experimentation, the patches mentioned in comment #2 might be
worth trying.