error compiling built-in diy on ibm power8 system

Error compiling statements like: is_trivially_copyable

For example:

vtkm/thirdparty/diy/vtkmdiy/include/vtkmdiy/serialization.hpp:93:19: error: use of undeclared identifier 'is_trivially_copyable' static_assert(is_trivially_copyable::value, "Default serialization works only for trivially copyable types");

We are using an ibm version of clang, which uses gcc-4.9.3 as its toolchain