cmake _HAVE_FSEEKO examples

Kitware/VTK ThirdParty/hdf5/vtkhdf5/config/cmake_ext_mod/ConfigureChecks.cmake :284 

CHECK_FUNCTION_EXISTS (fseeko               ${HDF_PREFIX}_HAVE_FSEEKO)

Tencent/Forward source/third_party/hdf5/config/cmake_ext_mod/ConfigureChecks.cmake :329 

CHECK_FUNCTION_EXISTS (fseeko               ${HDF_PREFIX}_HAVE_FSEEKO)