[ITK] [ITK-users] Does ITK 4.6 support C++11 for OSX?

[Tim Allman]

I have compiled ITK 4.6 successfully on OSX 10.9. The options I used in CMAKE_CXX_FLAGS are -std=gnu++11 -stdlib=libstdc++.

The important option is -stdlib. The current default for clang++ is libc++ but the default for Xcode 5 is libstdc++ so if you are not careful you will get ITK built with one and your project built with the other. This will give linker errors.

Tim


On Jul 18, 2014, at 16:27 , Becksfort, Jared <Jared.Becksfort at STJUDE.ORG> wrote:

> I had trouble at one point with a C++11 build.  My problem was that OSX 10.8 did not use the correct standard library by default.  It used (I believe) cstdlib, but libc++ is what is needed.  You can try your luck at using libc++ in the build commands or upgrade to 10.9 if you haven’t already.
>  
> I am 99% sure I build ITK version 4.6 on it.  I don’t have that computer handy at the moment so I can’t check.  The computer is a work computer, so I actually just had it re-imaged to 10.9 rather than a straight upgrade.  That could result in some differences potentially.
>  
> Good Luck,
> Jared
>  
> From: Insight-users [mailto:insight-users-bounces at itk.org] On Behalf Of Jim Choate
> Sent: Friday, July 18, 2014 2:40 PM
> To: insight-users at itk.org
> Subject: [ITK-users] Does ITK 4.6 support C++11 for OSX?
>  
> Hi, has anyone successfully used ITK 4.6 with a project built in XCode 5 for C++11?
>  
> Right now, we're getting 'Undefined symbols for architecture x86_64' for many symbols, such as itk::ProcessObject::MakeOutput when linking.
>  
> The owner of ITK on our team says this is caused by ITK not supporting C++11.  Is this true?
>  
> He rebuilt ITK 4.6 with C++11 flags.
>  
> Thank you!
> 
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