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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">I ran into this issue a few months ago and submitted a merge request with changes to set the CXX_FLAGS automatically when VTK_USE_CXX11_FEATURES is set.
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">https://gitlab.kitware.com/vtk/vtk/merge_requests/1314<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">Steven<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black">vtk-developers <vtk-developers-bounces@vtk.org> on behalf of Shawn Waldon <shawn.waldon@kitware.com><br>
<b>Date: </b>Friday, May 27, 2016 at 8:42 AM<br>
<b>To: </b>"andrew.amaclean@gmail.com" <andrew.amaclean@gmail.com><br>
<b>Cc: </b>VTK Developers <vtk-developers@vtk.org><br>
<b>Subject: </b>Re: [vtk-developers] C++11 compiler flags not set.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi Andrew,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">That looks like it is probably a bug in the CMake code for VTK_USE_CXX11_FEATURES. I added that flag... I'll take a look at it this weekend.<o:p></o:p></p>
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<p class="MsoNormal">Shawn<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, May 27, 2016 at 1:42 AM, Andrew Maclean <<a href="mailto:andrew.amaclean@gmail.com" target="_blank">andrew.amaclean@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Has anyone else noticed this issue?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Currently when building the master, I am getting many warnings along these lines:
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<p class="MsoNormal">"warning: override controls (override/final) only available with -std=c++11 or -std=gnu++11<o:p></o:p></p>
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<p class="MsoNormal"> void UnRegister(vtkObjectBase* o) VTK_OVERRIDE;"<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">It seems VTK_USE_CXX11_FEATURES is not setting the compiler flags for C++11.<o:p></o:p></p>
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<p class="MsoNormal">The evidence for this is that I get a clean build when manually adding -std=c++11 to CXXFLAGS.<o:p></o:p></p>
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<p class="MsoNormal">Once this is done the only warnings are those about auto_ptr being deprecated.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I thought the role of VTK_USE_CXX11_FEATURES was to set up the compiler to use c++11 features making it unnecessary to add it in CXXFLAGS.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'm building on Ubuntu 16.04, gcc 5.3.1 using the latest master.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards<o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#888888"> Andrew<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#888888"><br>
-- <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#888888">___________________________________________<br>
Andrew J. P. Maclean<br>
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___________________________________________<o:p></o:p></span></p>
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