message: gcc 4.8.1 is no longer supported
diff: @@ -364,17 +364,7 @@ template <
  >
  VSNRAY_FUNC
  inline auto multi_hit(R const& r, Primitives begin, Primitives end)
  - // Workaround gcc-4.8.1 ICE
  - // The following FAILS with lots of recursive template instantiations!
  -// -> decltype( multi_hit<N>(r, begin, end, std::declval<default_intersector&>()) )
  - -> decltype( detail::traverse<detail::MultiHit, N>(
  - is_any_bvh<Primitive>{},
  - is_closer_t(),
  - r,
  - begin,
  - end,
  - std::declval<default_intersector&>()
  - ) )
  + -> decltype(multi_hit<N>(r, begin, end, std::declval<default_intersector&>()))
  {
  default_intersector ignore;
  return multi_hit<N>(r, begin, end, ignore);
  