Emscripten: Fixed not including SDL_internal.h.
diff --git a/src/joystick/emscripten/SDL_sysjoystick_c.h b/src/joystick/emscripten/SDL_sysjoystick_c.h
index 375ea0e..4c907a6 100644
--- a/src/joystick/emscripten/SDL_sysjoystick_c.h
+++ b/src/joystick/emscripten/SDL_sysjoystick_c.h
@@ -19,7 +19,7 @@
3. This notice may not be removed or altered from any source distribution.
*/
-#include "SDL_config.h"
+#include "../../SDL_internal.h"
#ifdef SDL_JOYSTICK_EMSCRIPTEN
#include "../SDL_sysjoystick.h"