Comment # 12 on bug 1186710 from Takashi Iwai

(In reply to Ludwig Nussel from comment #11)
> (In reply to Takashi Iwai from comment #5)
> > I'm afraid that the relative symlink is bad in this case.  The kernel
> > package from the latest build is often used on a Leap or SLE system, and
> > this would break things.
> 
> Not sure if that is a good way forward. That limits innovation in the kernel
> package. You could still build the same sources for other targets and make
> the package behave differently. That's what user space packages usually do
> after all, you hardly take the TW binaries :)

Yeah, after considering again, I guess there will be also other breakage. 
After all, TW packages won't be usable any longer on SLE / Leap, unfortunately,
even for noarch package like firmware.  This has to be clarified somewhere.