I think this will be the time...

src/haptic/windows/SDL_dinputhaptic.c

@@ -1182,6 +1182,7 @@ SDL_DINPUT_HapticStopAll(SDL_Haptic * haptic)
 #else /* !SDL_HAPTIC_DINPUT */
 
 typedef struct DIDEVICEINSTANCE DIDEVICEINSTANCE;
+typedef struct SDL_hapticlist_item SDL_hapticlist_item;
 
 int
 SDL_DINPUT_HapticInit(void)

src/haptic/windows/SDL_xinputhaptic.c

@@ -375,6 +375,7 @@ SDL_XINPUT_HapticStopAll(SDL_Haptic * haptic)
 
 #else /* !SDL_HAPTIC_XINPUT */
 
+typedef struct SDL_hapticlist_item SDL_hapticlist_item;
 
 int
 SDL_XINPUT_HapticInit(void)