[Insight-developers] Problems building ITK against llvm libc++ (in C++11 mode)

[Bradley Lowekamp]

Sean,

<comments below>

On Oct 17, 2013, at 1:47 PM, Sean McBride <sean at rogue-research.com> wrote:

> Hi all,
> 
> I've just tried building ITK master against llvm's libc++ (in C++11 mode):
> <http://libcxx.llvm.org>
> 
> I've hit 2 errors:
> 
> 1) ITK/Modules/Core/Common/src/itkProcessObject.cxx:1166:10: error: no viable conversion from 'std::__1::basic_istream<char>' to 'bool'
>  return (std::istringstream(idxStr) >> idx);
>         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> 2) ITK/Modules/Core/Common/include/itkImageAlgorithm.h:24:12: fatal error: 'tr1/type_traits' file not found
> #  include <tr1/type_traits>
>           ^
> 
> I see that there is an #if ITK_HAS_STLTR1_TR1_TYPE_TRAITS protection, but I guess the logic needs tweaking.  It should probably prefer <type_traits> and fall back to <tr1/type_traits> only secondarily.

I believe both of the paths have been used. VS 2008 uses the one and every other compiler uses the other.

The header is  for checked here:
https://github.com/Kitware/ITK/blob/master/Modules/Core/Common/CMakeLists.txt#L51

defined here:
https://github.com/Kitware/ITK/blob/master/Modules/Core/Common/src/itkConfigure.h.in#L70

and used here:
https://github.com/Kitware/ITK/blob/master/Modules/Core/Common/include/itkImageAlgorithm.h#L23

Did you compile with a clean CMake cache?

What is defined in the Configure header?

What is the result and output of the try compile?

Brad

> 
> (I'm working on setting up a dashboard with this config.)
> 
> Cheers,
> 
> -- 
> ____________________________________________________________
> 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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