message: Cast to size_t due to error in aarch64 gcc 7.3.1
diff: @@ -125,8 +125,8 @@ void Stream::Write(const std::string &name, const T &datum, const bool isLocal,
  const T datumLocal = datum;
  if (isLocal)
  {
  - Write(name, &datumLocal, {adios2::LocalValueDim}, {}, {}, vParams(),
  - endStep);
  + Write(name, &datumLocal, {static_cast<size_t>(adios2::LocalValueDim)},
  + {}, {}, vParams(), endStep);
  }
  else
  {
  