[Insight-developers] MINGW build error -- itkFloatingPointExceptions.cxx causes errors

[Matt McCormick]

Hi Kent,

On Mon, Nov 19, 2012 at 8:51 PM, Williams, Norman K
<norman-k-williams at uiowa.edu> wrote:
> I know that people use MinGW with ITK, there are dashboards for it.
>
> But I just downloaded the current MinGW environment, and tried to build
> ITK master as of today, and it fails to compile
> itkFloatingPointExceptions.cxx in Core/Common/src, because it can't find
> the _EM_<error> symbols or _controlfp.
>
> Is there a secret to doing this?

Yes, there is.  Place

#ifdef __MINGW32__
# include_next <float.h>
#endif

at the end of lib/gcc/mingw32/4.7.0/include/float.h

This should be pushed upstream GCC at some point...

HTH,
Matt

> --
> Kent Williams norman-k-williams at uiowa.edu
>
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