Well, sorry..
Before sending the mail I read the documentation on
http://orgmode.org/worg/org-contribute.html#sec-4
regarding correct submission of patches... and did it wrong.
So just for the records, here it is again.
Hopefully, if I can contribute a `real' patch someday, the format will 
be right ;)

Regards, philipp

On Sun, Aug 19, 2012 at 01:38:10PM +0200, Nicolas Goaziou wrote:
> Hello,
> 
> Philipp Kroos <Philipp.Kroos@t-online.de> writes:
> 
> > It worked using customize, thanks. And thanks for the explanation, Nick.
> > At least my approach to set the value would not work at all without an 
> > explicit call to org-set-emph-re, since it relied on the variable being 
> > already defined.
> > It might be of minor interest, anyway, I've attached a patch-suggestion 
> > that would clearify the usage sufficiently, at least for me...
> 
> At some point, emphasis markers will be hard-coded anyway. Though, it
> will be easy to change their meaning during the export process.
> 
> 
> Regards,
> 
> -- 
> Nicolas Goaziou
>