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Date:	Tue, 19 Nov 2013 21:36:36 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: cygcheck -svc segfaults on Windows 8.1 with cygwin64
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On Nov 19 21:29, Corinna Vinschen wrote:
> On Nov 19 14:20, Larry Hall (Cygwin) wrote:
> > On 11/19/2013 2:03 PM, Corinna Vinschen wrote:
> > >On Nov 19 13:21, Charles Wilson wrote:
> > >>On 11/19/2013 12:13 PM, Corinna Vinschen wrote:
> > >>>Why do they have to make such a mess out of a simple function like
> > >>>GetVersionEx?  It returns different OS version numbers based on the
> > >>>existence of a manifest in the executable.  How dense is that?
> > >>>
> > >>>So we have thousands of executables, none of them has a 8.1 manifest.
> > >>>As a result, the uname() function returns OS versions 6.2 rather than
> > >>>6.3.  Aaaaaargh.
> > >>>
> > >>>In cygcheck I added a patch to check dwBuildNumber this morning.  If
> > >>>it's >=3D 9200, it's 8.1/2012R2, otherwise 8/2012.  But that doesn't
> > >>>fix the OS version number of course.  Sigh.
> > >>>
> > >>>I'm going to tweak the OS version number and I'll do the same in
> > >>>Cygwin's uname function as well.
> > >>
> > >>Good grief. I suppose I need to add something similar to
> > >>/usr/lib/csih/winProductName.exe...
> > >
> > >Looks like it, yes.  What on earth were they thinking?
> >=20
> > Who says they were thinking? ;-)
>=20
> Point.
>=20
> I found what happened:
> http://msdn.microsoft.com/en-us/library/windows/desktop/dn302074%28v=3Dvs=
.85%29.aspx
>=20
> Given that we are unable to provide and change manifests on the fly for
> thousands of executables, we will have to hack our way along in future
> because all upcoming versions of Windows will return a wrong OS version
> number.
>=20
> Why isn't there at least an additional non-manifest way to claim
> compatibility with the current OS? :(

Oh, and it's worse than I thought.  dwBuildNumber 9200 is the Windows 8
build number, so my workaround doesn't work and the entire version
information will be stuck at Windows 8 for the forseeable future, unless
somebody knows a workaround for this manifest mess.


Corinna

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

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