[vtkusers] Running Example on Osx

[Alessandro]

I did not look on since I never found that option... so how can I remove the -fobjc-gc option? As said in the first mail I compile with Qt 4.7.4 (and not 4.8.1), installed from the pre-built package so I've not seen the source code...

I'd like to use the static libraries because they allow me to generate a complete bundle on OSX. At the same time, the Share one seems to be the only way to have the designer plugin in built. 

Thanks,
Alessandro

Il giorno 16/mag/2012, alle ore 16:24, David E DeMarle ha scritto:

> Did you look on the advanced options set for VTK_REQUIRED_OBJCXX_FLAGS?
> 
> VTK's build configuration puts that compiler flag in for OSX 10.5
> (leopard) and up.
> Presumably this is to better integrate with the Mac Cocoa API.
> 
> The Qt package you've got apparently wasn't built with that compiler
> flag for some reason. I don't see it in Qt 4.8.1's source anywhere
> important so they must deal with Cocoa differently.
> 
> My intuition about why it doesn't work in static, but does in shared
> is simply that static links are more strict than the shared links are,
> so a shared build will work just fine especially if none of the
> affected symbols are encountered at runtime.
> 
> My suggestion is to remove -fobjc-gc from a fresh static vtk build and
> see if it all works without it. If not, build qt and force it into
> their compiler flags.
> 
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
> 
> 
> On Wed, May 16, 2012 at 5:11 AM, Ale <notinmyhead at gmail.com> wrote:
>> Yes, I build with the default settings. Without Shared Lib enabled. The VTK_REQUIRED_OBJCXX_FLAGS is not present I see...
>> 
>> I tried again including the shared libs (basically because I noticed that the design plugin was missing...) and now it seems to work properly... Why?
>> 
>> Il giorno 15/mag/2012, alle ore 19.14, Sean McBride ha scritto:
>> 
>>> On Tue, 15 May 2012 15:44:06 +0200, Ale said:
>>> 
>>>> I had build the VTK library version 5.10.0 including the Example.
>>>> Whenever I tried to run one of the example using Qt, I get this error:
>>>> 
>>>> objc[63533]: '/Library/Frameworks/QtGui.framework/Versions/4/QtGui' was
>>>> not compiled with -fobjc-gc or -fobjc-gc-only, but the application
>>>> requires GC objc[63533]: '/Library/Frameworks/QtWebKit.framework/
>>>> Versions/4/QtWebKit' was not compiled with -fobjc-gc or -fobjc-gc-only,
>>>> but the application requires GC
>>>> 
>>>> I use the Qt 4.7.4, which I downloaded and installed using the Qt package.
>>> 
>>> Did you build VTK with default settings?  What's set in cmake for the VTK_REQUIRED_OBJCXX_FLAGS setting?
>>> 
>>> --
>>> ____________________________________________________________
>>> Sean McBride, B. Eng                 sean at rogue-research.com
>>> Rogue Research                        www.rogue-research.com
>>> Mac Software Developer              Montréal, Québec, Canada
>>> 
>>> 
>> 
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