Comment # 6 on bug 1087075 from Richard Biener

(In reply to Dr. Werner Fink from comment #5)
> (In reply to Martin Li��ka from comment #4)
> 
> > Yes, that's correct. Added here:
> > https://github.com/kohler/lcdf-typetools/commit/
> > 3118d2d45dcb605193e756fbda32dc186c2b267f
> > 
> > with commit message:
> > Remove undefined behaviors.
> > 
> > Can you please backport this patch to Factory version of the package?
> > Or will you bump to a newer version?
> 
> This is the question as I'm currentky waiting on TeXLive 2018 final release.
> The pretestes do build here but, as usual, there will be always problems
> with the next version like incompatibilities with other packages or missed
> upstream dependencies or missing perl packages (SR#596063 and SR#596059 are
> still not approved nor reviewed)

Given that with continuous integration the texlive build failure blocks
adoption of GCC8 and thus a timely fix is appreciated.