[CMake] cmake and wxwidgets on windows

[Miguel A. Figueroa-Villanueva]

On Tue, Nov 4, 2008 at 12:32 PM, Werner Smekal wrote:
> Hi Miguel,
>>
>> Thanks Werner. However, I'm not sure what the correct solution is... I
>> googled a bit and can't find any documentation indicating that
>> _UNICODE needs to be defined.
>>
>> From the following link:
>>
>> http://docs.wxwidgets.org/stable/wx_unicode.html
>>
>> it seems that using the correct macros (i.e., wxT(), etc.) should
>> suffice. There is some information below that suggests that maybe
>> wxUSE_UNICODE is the macro to define, but even there it is not clear
>> if this should be done in user code or build configuration.
>>
>> If somebody can point me to the appropriate documentation or samples
>> in the wiki, I'll appreciate it.
>
> It's actually defined in wx/platform.h
>
> http://svn.wxwidgets.org/viewvc/wx/wxWidgets/trunk/include/wx/platform.h?view=markup
>
> if _UNICODE is set, wxUSE_UNICODE will be set. Problem here is and although
> I use wxWidgets now for 8 years, I still don't know how this setup.h
> procedure should work correctly. Actually the "mistake" of John was, that he
> compiled wxWidgets with UNICODE=1 setting on the mingw32-make command line.
> But then after that you are supposed to make the settings in setup.h on your
> own (change wxUSE_UNICODE to 1). This is because there is no configure which
> does that for you. Obviously this _UNICODE workaround is also used, look
> e.g. here
>
> http://trac.wxwidgets.org/ticket/9429
>
> So it's either that we believe the user should handle that on him/her own,
> or the wxWidgets module just defines the _UNICODE macro which shouldn't do
> any harm. Maybe we should ask the wxWidgets list.
>
> Regards,
> Werner

Well, it seems that UNICODE and _UNICODE are platform defined and if
these have been defined, then wxUSE_UNICODE is forced. As a wxWidgets
user you should set the wxUSE_UNICODE if you need UNICODE support.

Now the question remains: Should we set wxUSE_UNICODE in the
FindwxWidgets module when using mswu configuration (i.e., unicode
libraries)?

I think that this will depend on whether or not there is a legitimate
use of unicode libraries with the wxUSE_UNICODE set to 0. John, could
you ask this in the wxWidgets mailing list and cc me to keep track of
the thread?

Any other thoughts?

--Miguel