-void fghJoystickAddAxisElement ( SFG_Joystick* joy, CFDictionaryRef axis );
-void fghJoystickAddButtonElement ( SFG_Joystick* joy, CFDictionaryRef button );
-void fghJoystickAddHatElement ( SFG_Joystick* joy, CFDictionaryRef hat );
+static void fghJoystickAddAxisElement ( SFG_Joystick* joy, CFDictionaryRef axis );
+static void fghJoystickAddButtonElement ( SFG_Joystick* joy, CFDictionaryRef button );
+static void fghJoystickAddHatElement ( SFG_Joystick* joy, CFDictionaryRef hat );