[Insight-developers] Compiling with c++0x patch

[Matthew McCormick (thewtex)]

On Thu, Dec 29, 2011 at 11:31 AM, David Doria <daviddoria at gmail.com> wrote:
> On Thu, Dec 29, 2011 at 10:43 AM, Bradley Lowekamp
> <blowekamp at mail.nih.gov> wrote:
>> Hello David,
>>
>>
>> Did you run into this problem when you build ITK with this flag or when this
>> flag was added to an application which uses ITK?
>>
>> I believe there is a try compile for usage of this feature in VXL, so if you
>> compile both your application and ITK with this flag it may work?
>>
>> Brad
>
> I initially ran into it when compiling code that used ITK with
> -std=gnu++0x set in CXX_FLAGS. I just tried what you suggested -
> attempting to build ITK with the same flag, but I get the same
>
> /home/doriad/src/ITK/Modules/ThirdParty/VNL/src/vxl/core/vnl/vnl_math.h:87:53:
> error: ‘constexpr’ needed for in-class initialization of static data
> member ‘e’ of non-integral type
>
> Has any one else tried to build ITK with this flag?
>

I believe there was a recent thread regarding in-class VNL
initialization of static float's, but it was because CLang complains
about it, too.

Matt