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Subject:	Re: cygwin64: Issue with sigaddset
From:	Richard Elberger <rich AT richelberger DOT com>
In-Reply-To:	<20150223140353.GQ437@calimero.vinschen.de>
Date:	Mon, 23 Feb 2015 09:52:43 -0500
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Corinna,

Works great! Good thing I just ran the test before blowing away the perl distribution because….

Unfortunately now I think I really screwed things up.  I never did a snapshot install before. I followed the instructions in the FAQ.

 So now I am getting an incompatible error from ld looking at libcygwin.a when searching -lcygwin (I wanted to rebuild perl from scratch to make absolutely sure).  I looked at the FAQ to see what I have to do to recover but couldn’t find any relevant notes.

Help is welcome before I use the sledgehammer and run setup.exe again.

— rich

> On Feb 23, 2015, at 9:03 AM, Corinna Vinschen <corinna-cygwin AT cygwin DOT com> wrote:
> 
> On Feb 23 07:59, Richard Elberger wrote:
>> Awesome ;)  Thanks so much I will keep a look out for it and verify on
>> my end that the perl unit test works as expected.
>> 
>> 
>>> On Feb 23, 2015, at 7:42 AM, Corinna Vinschen <corinna-cygwin AT cygwin DOT com> wrote:
>>> 
>>> Hi Richard,
>>> 
>>> On Feb 21 16:17, Richard Elberger wrote:
>>>> Hello,
>>>> 
>>>> I found this while trying to compile perl 5.20.1 on latest cygwin64
>>>> (just updated yesterday).
>>>> 
>>>> 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.
>>>> 
>>>> It’s been far too many years since I’ve written C but the attached
>>>> code snippet to prove it (hopefully it proves it) … and running the
>>>> same “code” (I put that in quotes because it’s like preschool C) on
>>>> any Linux works as expected - just adding the one signal.
>>>> 
>>>> 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’re 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.
> 
> Snapshots are up.  Please give it a try.
> 
> 
> Thanks,
> Corinna
> 
> -- 
> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Maintainer                 cygwin AT cygwin DOT com
> Red Hat


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