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Date: Tue, 6 Feb 2018 15:24:00 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: OpenBLAS patch for Cygwin
Message-ID: <20180206142400.GC30794@calimero.vinschen.de>
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On Feb  6 15:15, Marco Atzeri wrote:
> On 06/02/2018 13:10, Erik Bray wrote:
> > Hello,
> >=20
> > Users/maintainers of OpenBLAS on Cygwin may be interested in this
> > patch to improve support for fork():
> > https://github.com/xianyi/OpenBLAS/pull/1450
> >=20
> > Assuming this looks good (feedback welcome) it might be nice to have
> > this patch included in the next release of the official OpenBLAS
> > package for Cygwin since its incompatibility with fork() has caused
> > problems in the past [1].
> >=20
> >=20
> > Thanks,
> > E
> >=20
> > [1] https://trac.sagemath.org/ticket/22822
> >=20
>=20
>=20
> Noted.
> Do you have a test case to show the failure with current build ?
>=20
> Any reason to use OS_CYGWIN_NT and not __CYGWIN__ in the patch ?

Also, it should really use pthread functions and drop the notion that
Cygwin is a Windows target.  Assuming you're running fork from another
thread than the main thread, does it still work with native Windows
threads?


Corinna

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

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