Fix preprocessor error.

modules/sdl2/SDL/include/SDL_config.h

@@ -52,6 +52,7 @@
 #include "SDL_config_raspbian.h" //!\\To created
 #else
 #include "SDL_config_linux.h" //!\\To created
+#endif
 #elif defined(EMSCRIPTEN)
 #include "SDL_config_emscripten.h" //!\\ To created
 #else