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X-HELO:	calimero.vinschen.de
Date:	Mon, 23 Feb 2015 13:42:39 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: cygwin64: Issue with sigaddset
Message-ID:	<20150223124239.GN437@calimero.vinschen.de>
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References:	<B7278424-8EBE-4119-9F02-F68CB98388A3 AT richelberger DOT com>
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Hi Richard,

On Feb 21 16:17, Richard Elberger wrote:
> Hello,
>=20
> I found this while trying to compile perl 5.20.1 on latest cygwin64
> (just updated yesterday).
>=20
> Effectively, sigaddset is adding a signal along these lines.  If
> signal x is less than 32, then two signals are added: x and x+32.  If
> signal x is greater than 32, then again two signals are added, x and
> x-32.
>=20
> It=E2=80=99s been far too many years since I=E2=80=99ve written C but the=
 attached
> code snippet to prove it (hopefully it proves it) =E2=80=A6 and running t=
he
> same =E2=80=9Ccode=E2=80=9D (I put that in quotes because it=E2=80=99s li=
ke preschool C) on
> any Linux works as expected - just adding the one signal.
>=20
> This is causing the sigset.t test for the POSIX module in perl core to
> fail.  There are a ton of other failures in testing 5.20.1 core but
> hopefully they=E2=80=99re not all cygwin related like this one.

Thanks a lot for the testcase.  I fixed the problem (an int overflow
computing a bit mask) in CVS.  I'll generate a developer snapshot on
https://cygwin.com/snapshots/ and probably another Cygwin 1.7.35 test
release soon.  Both will contain that patch.


Thanks,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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