message: cast type for Windows
diff: @@ -305,7 +305,7 @@ bool introspectAsBPFile(std::ifstream &f, const std::string &name) noexcept
  helper::ReadValue<uint64_t>(buffer, position, !IsBigEndian);
  if (PGIndexStart >= VarsIndexStart ||
  VarsIndexStart >= AttributesIndexStart ||
  - AttributesIndexStart >= flength)
  + AttributesIndexStart >= static_cast<uint64_t>(flength))
  {
  return false;
  }
  