message: better PP check for Windows
diff: @@ -75,7 +75,7 @@ namespace ospray {
  if (!ascii)
  return fread(f,sizeof(float),N,file) == size_t(N);
  -#if _WIN32
  +#ifdef _WIN32
  throw std::runtime_error("ascii importer for points not implemented"
  " on Windows!");
  #else
  