cmake _HAVE_STAT64 examples

Kitware/VTK ThirdParty/hdf5/vtkhdf5/config/cmake_ext_mod/ConfigureChecks.cmake :288 

CHECK_FUNCTION_EXISTS (stat64             ${HDF_PREFIX}_HAVE_STAT64)

Tencent/Forward source/third_party/hdf5/config/cmake_ext_mod/ConfigureChecks.cmake :333 

CHECK_FUNCTION_EXISTS (stat64             ${HDF_PREFIX}_HAVE_STAT64)