[CMake] Problem with "configured" file under Cygwin/Windows 7

[Arjen Markus]

Hello,

I found the cause for this problem. It has nothing to do with CMake,
but everything with the interplay of Windows file permissions and POSIX
file permissions. The sources of my project all had the POSIX file
permissions 000, which still allowed me to view them under Windows and
to change them and even to access them under Cygwin. However, a copy
of these files, made via Cygwin tools (not Windows), inherited the
restricted permissions and these were dutifully translated into
Windows permissions. The consequence was that the copies were unuseable.

Now that I have found the cause, I can proceed.

Regards,

Arjen

On 2013-05-25 13:06, Arjen Markus wrote:
> Hello,
> 
> I have installed a very recent version of Cygwin on Windows 7
> (64 bits) and the version of CMake that comes with it (2.8.9-2). When I 
> use this however to configure and build projects that work fine
> under Windows (various versions0, then I get either configuration
> problems or build problems that turn out to be caused by a strange
> permission set on "configured" files.
> 
> Using one of these projects I have created an almost minimal project
> to demonstrate the problem. If you configure it via CMake under
> Windows 7, the file "gnulliver.h" has "special permissions". I have
> no clue what that means or how it arises, but the consequence is that
> a program can not open it. Not even a program running under
> Administrator rights.
> 
> Oddly enough, you can change the permissions from Windows Explorer by
> opening the permissions dialogue and giving the user full access.
> 
> I have tried to reproduce it in an even smaller project than the one
> attached, that is: just a CMakeListst.txt file and gnulliver.h.in,
> but that worked without this problem. So it seems a combination of
> steps is required to trigger this issue.
> 
> Can anyone shed some light on this? It makes it impossible to use
> Cygwin in combination with Windows 7 (I have not tried on other
> platforms, quite possibly it is specific to this combination.)
> 
> Regards,
> 
> Arjen
> 
> 
> 
> 
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DISCLAIMER: This message is intended exclusively for the addressee(s) and may contain confidential and privileged information. If you are not the intended recipient please notify the sender immediately and destroy this message. Unauthorized use, disclosure or copying of this message is strictly prohibited.
The foundation 'Stichting Deltares', which has its seat at Delft, The Netherlands, Commercial Registration Number 41146461, is not liable in any way whatsoever for consequences and/or damages resulting from the improper, incomplete and untimely dispatch, receipt and/or content of this e-mail.