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Date:	Mon, 29 Nov 2021 11:41:28 +0100
To:	cygwin AT cygwin DOT com
Subject:	Re: raise(-1) has stopped returning an error recently
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From:	Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
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Cc:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
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On Nov 27 10:43, Duncan Roe wrote:
> On Wed, Nov 24, 2021 at 10:25:46AM +0100, cygwin wrote: [...]
> >
> > What is that "permanent restriction" in Cygwin?  Is that something we
> > could fix or something unfixable?  Did you try to debug Cygwin in terms
> > of that problem?  If not, could you extract a reduced, very simple
> > stand-alone testcase for further debugging?
> >
> The restriction is in grep/gnulib source. From
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27555#5
> 
> >> I've determined the cause, at least. The sole caller of mbstoupper
> >> (which contained the relevant __CYGWIN__-specific
> >> surrogate-pair-handling code) was removed by the improvements of
> >> v2.21-63-g8a33cde, and not long after, I noticed that mbstoupper was
> >> no longer used, so removed it altogether.
> 
> I submitted a patch to save anyone else wasting time over this. So please don't
> you,

Great, thanks!


Corinna

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