Re: [Plplot-devel] Problem with wxWidgets under MinGW-w64/MSYS2

[Arjen M. <Arj...@de...>]

Hi Alan,



> -----Original Message-----
> From: Alan W. Irwin [mailto:ir...@be...]
> Sent: Friday, June 23, 2017 1:04 PM
>
> Hi Arjen:
>
> Thanks very much for that quick turnaround.
>
You're welcome :)

> > I get compile errors as can be seen in the attached tarball (output
> from CMake and make, as well as the config header file). We need to sort out these
> things before a comprehensive build is going to stand any chance.
>
> From what I can tell from your current extremely limited make.out (please generate
> that next time with VERBOSE=1), it looks like these build issues have nothing to do
> with PLplot code and instead are wxwidgets header incompatibilities _for the
> compile flags that are being generated by your current  Unix wxwidgets find
> method_.
>
> Therefore, I am pretty sure the current build issue is caused by your build using
> Unix wxwidgets compile and link flags when it should be using Windows wxwidgets
> compile and link flags for the MinGW-w64/MSYS2 platform. So to get access to the
> latter flags, I suggest you use the _Windows_ wxwidgets find method (which I
> understand you automatically obtain if you use the "MSYS Makefiles" generator.)
>

I do not think so, the condition definitely says "AND NOT MSYS" - so that would use the Unix method.

> If I have understood correctly what you said before, the Windows wxwidgets find
> method currently does not work for the MinGW-w64/MSYS2 platform. Nevertheless,
> since our wxwidgets code with old IPC method did build correctly on MSVC before
> with this find method, I assume whatever correction you have to make to
> cmake/modules/findwxWidgets.cmake to get the Windows find method to work
> correctly on the MinGW-w64/MSYS2 platform should be quite small.
> And as per usual, the cmake options --debug-output --trace are extremely useful for
> debugging find modules, but if those are not sufficient to discover the problem, you
> can always locally insert
> message(...) commands in cmake/modules/findwxWidgets.cmake.
>

Ah, but the issue is that under MinGW-w64/MSYS2 things are installed in different directories and possibly a different structure than under Windows with MSVC. MinGW-w64/MSYS2 is a bit of a hybrid system, though leaning towards the Unix way.

> Anyhow, good luck with this debugging of the Windows wxwidgets find method on
> MinGW-w64/MSYS2.
>

Thanks, it looks like some more experimenting is required.

Regards,

Arjen

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