update SDL_COMPOSE_ERROR macro for windows clang-cl from a patchset by Vladislav Dmitrievich Turbanov: https://github.com/libsdl-org/SDL/pull/4062
diff --git a/src/render/direct3d11/SDL_render_d3d11.c b/src/render/direct3d11/SDL_render_d3d11.c
index 5138aa6..b848dc3 100644
--- a/src/render/direct3d11/SDL_render_d3d11.c
+++ b/src/render/direct3d11/SDL_render_d3d11.c
@@ -54,7 +54,7 @@ extern ISwapChainBackgroundPanelNative * WINRT_GlobalSwapChainBackgroundPanelNat
#endif /* __WINRT__ */
-#ifdef _MSC_VER
+#if defined(_MSC_VER) && !defined(__clang__)
#define SDL_COMPOSE_ERROR(str) __FUNCTION__ ", " str
#else
#define SDL_COMPOSE_ERROR(str) SDL_STRINGIFY_ARG(__FUNCTION__) ", " str