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Date:	Wed, 25 May 2011 10:16:03 -0400
From:	Edward Lam <edward AT sidefx DOT com>
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Subject:	Re: Cygwin 1.7.x on Windows 7: Exit statuses of Win32 executables are sometimes wrong
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On 29/04/2011 2:35 PM, John Dong wrote:
> Reproducing this seems nondeterministic -- sometimes I can get it to
> happen in 5 minutes, other times it takes overnight. I've tried using
> a different shell (like dash), but it doesn't make a difference,
> leading me to suspect this to be a lower-level issue within the
> Cygwin DLL. It also seems to not happen for non-zero exit codes (e.g.
> checking that exiter.exe 1 returns 1 always seems to succeed), though
> I'm not 100% confident that I've tested this thoroughly enough.
>
> Again, I've not been able to reproduce this under Windows XP using
> any version of Cygwin, but I have been able to reproduce it on both
> 32-bit and 64-bit Windows 7. I'm not running anything special on this
> machine -- it's a fresh install of Windows 7 Professional, just with
> Cygwin installed.

FWIW, we've been running into this as well. It appears to NOT be a 
problem with Cygwin 1.5 on Windows 7. It only started happening on 
Cygwin 1.7. As a result, we haven't had a reliable Windows 7 build 
machine for a while now because we use a Cygwin gmake process that 
compiles with MSVC.

-Edward

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