[vtkusers] X11 CMake Errors on Mac

[David Gobbi]

So VTK itself built fine?  It's just an example that fails to build?
The problem is most likely with the example.  Those wiki
examples are provided by the community (anyone can edit the
wiki) so I'm not sure how well-maintained they are.

>From the error that you are seeing, which says that the
symbol vtkEventQtSlotConnect::New cannot be found,
I can say that the target_link_libraries in the example's
CMakeLists.txt must be missing the QVTK library.  That's
the library that defines the missing function.

 - David


On Fri, Jan 4, 2013 at 12:48 PM, Berkowitz, Benjamin M
<benjamin-berkowitz at uiowa.edu> wrote:
> Hi David,
>
> I uninstalled and reinstalled both Qt and VTK.  I tried building the EventQtSlotConnect example, and I'm getting this error:
>
> Linking CXX executable EventQtSlotConnect.app/Contents/MacOS/EventQtSlotConnect
> Undefined symbols for architecture x86_64:
>   "QVTKWidget::QVTKWidget(QWidget*, QFlags<Qt::WindowType>)", referenced from:
>       Ui_EventQtSlotConnect::setupUi(QMainWindow*) in EventQtSlotConnect.cxx.o
>   "vtkEventQtSlotConnect::New()", referenced from:
>       vtkSmartPointer<vtkEventQtSlotConnect>::New() in EventQtSlotConnect.cxx.o
> ld: symbol(s) not found for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see invocation)
> make[2]: *** [EventQtSlotConnect.app/Contents/MacOS/EventQtSlotConnect] Error 1
> make[1]: *** [CMakeFiles/EventQtSlotConnect.dir/all] Error 2
> make: *** [all] Error 2
>
>
> Do you have any ideas?
>
> Thanks,
> Ben
>
>
>
> On Jan 4, 2013, at 12:10 PM, David Gobbi <david.gobbi at gmail.com>
>  wrote:
>
>> I should also mention: if you are using OS X 10.8, then you should
>> be using VTK 5.10.1 rather than VTK 5.10.  The .1 release included
>> some small fixes for OS X 10.8.
>>
>> - David
>>
>>
>> On Fri, Jan 4, 2013 at 11:00 AM, David Gobbi <david.gobbi at gmail.com> wrote:
>>> Hi Ben,
>>>
>>> Go with Qt 4.8.  Qt is what most people use with VTK.  Install the dmg
>>> file from digia (qt-mac-opensource-4.8.4.dmg) and then build your VTK
>>> with these CMake options:
>>>
>>> BUILD_SHARED=ON
>>> VTK_USE_COCOA=ON
>>> VTK_USE_QT=ON
>>>
>>> That's all that I do when I build VTK with Qt.  The VTK build on OS X
>>> 10.6 through 10.8 is x86_64 by default, which works fine with the Qt
>>> binary package that I mentioned above.  If you have build/link issues
>>> related to Qt, check the QT-related variables in VTK's CMakeCache.txt
>>> to make sure that it is finding the right versions of all the Qt
>>> libraries (if you have multiple versions of Qt installed on your
>>> system, this could be an issue).
>>>
>>> - David
>>>
>>>
>>>
>>> On Fri, Jan 4, 2013 at 10:38 AM, bberkowi <benjamin-berkowitz at uiowa.edu> wrote:
>>>> Thanks, that makes sense.  I was hoping that I would be able to use KWWidgets
>>>> to build a simple GUI, but it seems like that may not be the case.  I also
>>>> haven't had luck with VTK for use with either Qt 4.8 or 5.0.  Do you know of
>>>> any alternatives?
>