On 2015-05-12 10:51-0000 Arjen Markus wrote:

> I used commit c67fd667347b09bf5d3be6c0bc73de3762e59ab1 and still see
that warning. I have attached the compressed tar-ball for your
convenience.

I very much appreciate that report since it is a largely successful
test of all the recent build-system changes I have been doing.

That report shows we have a substantial improvement from your previous report 
since
the warnings are now reduced from 5 or so per cmake run to just one instance
that occurs immediately at the start of our top-level CMake logic.

To pursue this further, could you please try the following
mini-project?

cmake_minimum_required(VERSION 3.0.2 FATAL_ERROR)
project(test_cygwin_warnings NONE)
enable_language(C)
message(STATUS "CMake version = ${CMAKE_VERSION}")
message(STATUS "CMAKE_SYSTEM_NAME = ${CMAKE_SYSTEM_NAME}")

The point of this mini-project is to try and find a simple test case
that generates the spurious warning that I can pass on to the CMake
developers to help them fix that bug on Cygwin.

If the above mini-project does not generate the spurious warning, then
there is a slightly less simple test project we can try that mimics
the PLplot initial code much more closely.  However, the differences
between that more complex project and the one above should not make
any difference with regard to the spurious warning so my bet is the
above project will demonstrate that bug.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
__________________________

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