retro_sdl209_fix.diff

diff --git a/SonicCDDecomp/RetroEngine.hpp b/SonicCDDecomp/RetroEngine.hpp
index 7cd77c3..76c1161 100644
--- a/SonicCDDecomp/RetroEngine.hpp
+++ b/SonicCDDecomp/RetroEngine.hpp
@@ -104,6 +104,27 @@ typedef unsigned int uint;
 
 #endif
 
+//
+#if RETRO_USING_SDL
+#include <SDL2/SDL.h>
+#if !(SDL_VERSION_ATLEAST(2,0,10))
+typedef enum
+{
+    SDL_TOUCH_DEVICE_INVALID = -1,
+    SDL_TOUCH_DEVICE_DIRECT,            // touch screen with window-relative coordinates
+    SDL_TOUCH_DEVICE_INDIRECT_ABSOLUTE, // trackpad with absolute device coordinates
+    SDL_TOUCH_DEVICE_INDIRECT_RELATIVE  // trackpad with screen cursor-relative coordinates
+} SDL_TouchDeviceType;
+#if defined(WARN_OUTDATED)
+#pragma message("SDL_GetTouchDeviceType is not supported before SDL 2.0.10")
+#endif
+static inline SDL_TouchDeviceType SDL_GetTouchDeviceType(SDL_TouchID touchID)
+{
+	return SDL_TOUCH_DEVICE_INVALID;
+}
+#endif
+#endif
+
 // this macro defines the touch device read by the game (UWP requires DIRECT)
 #if RETRO_UWP
 #define RETRO_TOUCH_DEVICE SDL_TOUCH_DEVICE_DIRECT