1 files changed, 6 insertions, 0 deletions
diff --git a/Source/3rdParty/SDL2/src/joystick/steam/SDL_steamcontroller.h b/Source/3rdParty/SDL2/src/joystick/steam/SDL_steamcontroller.h
index ce37b4d..81b8879 100644
--- a/Source/3rdParty/SDL2/src/joystick/steam/SDL_steamcontroller.h
+++ b/Source/3rdParty/SDL2/src/joystick/steam/SDL_steamcontroller.h
@@ -18,6 +18,10 @@
      misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 */
+
+#ifndef SDL_steamcontroller_h_
+#define SDL_steamcontroller_h_
+
 #include "../../SDL_internal.h"
 
 typedef SDL_bool (*SteamControllerConnectedCallback_t)(const char *name, SDL_JoystickGUID guid, int *device_instance);
@@ -30,4 +34,6 @@ void SDL_UpdateSteamControllers(void);
 void SDL_UpdateSteamController(SDL_Joystick *joystick);
 void SDL_QuitSteamControllers(void);
 
+#endif /* SDL_steamcontroller_h_ */
+
 /* vi: set ts=4 sw=4 expandtab: */