core.stdc.fenv on Win64

[Walter Bright via Digitalmars-d]

On 7/16/2014 3:42 PM, Trass3r wrote:
> The implementation doesn't seem to be correct.
> Could anybody versed in this look into it?
>
> version(Windows)
> {
>      private extern __gshared fenv_t _FE_DFL_ENV;
>      fenv_t* FE_DFL_ENV = &_FE_DFL_ENV;
> }
>
> There's no such symbol in the libcmt and it fails to link.
>
>
> http://sourceforge.net/p/mingw/mingw-org-wsl/ci/master/tree/include/fenv.h#l87

That code is for Win32 and was never ported properly for Win64. Please file a 
bugzilla issue for it.