Re: [Plplot-devel] build with wxWidgets, Visual Studio

[Alan W. I. <ir...@be...>]

On 2016-10-11 23:31-0400 Pedro Vicente wrote:

> Hi Alan
>
>> I have just looked at the latest official version of
>> FindwxWidgets.cmake from the cmake git master branch and it is the
>> same as or superior to the PLplot unofficial version in all respects
>> (e.g., in supporting all the recently released versions of wxWidgets).
>> Therefore, I have just changed the PLplot master branch so that our
>> unofficial version follows the official version (see my recent commit
>> 511a6ac).
>
>
> About that cmake wxWidgets driver bug that I reported here and patched on my 
> local plplot 5.11.1 version
>
> I did a clone of the git master from
>
>
> https://sourceforge.net/p/plplot/plplot/ci/master/tree/
>
> and I do get an error, that wxWidgets cannot be found

Hi Pedro:

Thanks for following up on my request to test our latest git version of
cmake/modules/FindwxWidgets.cmake.  Since that file still doesn't work to allow
you to find wxWidgets-3.1.0 for your particular platform circumstances,
I strongly suggest you do the following to debug this issue further:

To simplify (always a good thing when debugging), please try a simple
CMake test project that attempts only to find wxWidgets using the
official CMake find module from whatever version of cmake you are
using. I have attached a compressed version of such a test project.
It gives me the following results here for CMake-3.5.2:

-- Found wxWidgets: -L/usr/lib/x86_64-linux-gnu;-pthread;;;-lwx_baseu-3.0;-lwx_gtk2u_core-3.0 (found version "3.0.2") 
-- wxWidgets_FOUND           : TRUE
-- wxWidgets_INCLUDE_DIRS    : /usr/lib/x86_64-linux-gnu/wx/include/gtk2-unicode-3.0;/usr/include/wx-3.0
-- wxWidgets_LIBRARY_DIRS    : /usr/lib/x86_64-linux-gnu
-- wxWidgets_LIBRARIES       : -L/usr/lib/x86_64-linux-gnu;-pthread;;;-lwx_baseu-3.0;-lwx_gtk2u_core-3.0
-- wxWidgets_CXX_FLAGS       : -pthread
-- wxWidgets_USE_FILE        : /home/software/cmake/install-3.5.2/share/cmake-3.5/Modules/UsewxWidgets.cmake
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/build_dir

I have just checked the official find modules for wxwidgets, and the
big change from CMake-3.6.2 to 3.7.0-rc1 was to introduce the changes
required to find wxWidgets-3.1.0.  So the attached test project should
fail to find wxWidgets-3.1.0 if you are using CMake-3.6.2 or any prior
version, but if you try it with CMake-3.7.0-rc1, it should succeed
unless there is a bug in that official version (which is effectively
the same as the PLplot version so I suspect there is a bug in that
version).  If you pass on to me the changes in the CMake-3.7.0-rc1
find module (normally found in
$PREFIX/share/cmake-3.7/Modules/FindwxWidgets.cmake for
CMake-3.7.0-rc1) that makes it work for this simple test case, then I
will update the PLplot version of the file accordingly, and also
request the CMake developers make your suggested change.  This is
excellent timing for making such a bugfix suggestion to them since
3.7.0 has not yet been officially released.

Of course, on the other hand, if the simple test project succeeds with
finding wxwidgets-3.1.0 on your platform with CMake-3.7.0-rc1, then
the problem is a PLplot bug rather than a simple CMake find module
bug, and we will have to dig deeper.  So please keep in touch
about your results for the suggested simple test.

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).
__________________________

Linux-powered Science
__________________________