Am Donnerstag, den 16.02.2017, 16:19 +0100 schrieb Kornel Benko:
> > I'd probably use \providecommand. But you'd need to check whether
> the
> > output is identical (see below). And alternative is using \def or
> > \@ifundefined{strong}{\newcommand...}{\renewcommand...}
>
> OK. Any solution is better than what we have now.I have committed a fix using \providecommand. I have verified that fontspec's strong produces formally identical output. This should also go to stable. Jürgen
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