[ITK-dev] [ITK] clang throws a lot of -Wunknown-attributes warning.

[Matt McCormick]

Hi Rashad,

Thanks for discussing issue.

I have been using that compiler and have not come across those warnings.
Are there any non-default flags or CMake options being used?

Could you please submit an Experimental build to the dashboard? ('ctest -D
Experimental' from a clean build tree)

Thanks,
Matt

On Tue, Nov 24, 2015 at 10:39 AM, Rashad Kanavath <
mohammedrashadkm at gmail.com> wrote:

> Hello all,
>
> I am getting a lot of warnings when using itk with clang compiler.
>
> clang version: 3.5.0
> Fedora Linux 22 x86_64
> ITK trunk
>
> In file included from
> /home/otbtesting/sources/orfeo/trunk/OTB-Nightly/Modules/Core/SpatialObjects/include/otbLineSpatialObjectList.h:23:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkLineSpatialObject.h:23:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkPointBasedSpatialObject.h:21:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkSpatialObject.h:23:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkAffineGeometryFrame.h:23:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkScalableAffineTransform.h:21:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkAffineTransform.h:21:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkMatrixOffsetTransformBase.h:24:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkTransform.h:25:
> In file included from
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkVariableLengthVector.h:1348:
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkVariableLengthVector.hxx:312:3:
> warning: unknown attribute 'error' ignored [-Wunknown-attributes]
>   itkStaticAssert(
>   ^
> /home/otbtesting/install/itk/trunk/Release/include/ITK-4.9/itkStaticAssert.h:40:35:
> note: expanded from macro 'itkStaticAssert'
>       ({extern int __attribute__((error(str))) StaticAssertFailure(); \
>                                   ^
> 3 warnings generated.
>
> --
> Regards,
>    Rashad
>
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