message: attempt to fix compilation failure with gcc
  fix
diff: @@ -809,10 +809,10 @@ using AttributeArray = std::array<Attribute, MAX_VERTEX_ATTRIBUTE_COUNT>;
  //! Raster state descriptor
  struct RasterState {
  - using CullingMode = CullingMode;
  - using DepthFunc = SamplerCompareFunc;
  - using BlendEquation = BlendEquation;
  - using BlendFunction = BlendFunction;
  + using CullingMode = backend::CullingMode;
  + using DepthFunc = backend::SamplerCompareFunc;
  + using BlendEquation = backend::BlendEquation;
  + using BlendFunction = backend::BlendFunction;
  RasterState() noexcept { // NOLINT
  static_assert(sizeof(RasterState) == sizeof(uint32_t),
  