fixed compiler warning by adding missing variable initialization

diff --git a/src/screens.c b/src/screens.c
index ba5a211911500f064607ea445b1b0a2f236e0dc8..0a63c2e40cb9575d5c65eecd94b3d75092cc2d06 100644 (file)
--- a/src/screens.c
+++ b/src/screens.c
@@ -6581,6 +6581,8 @@ static boolean ConfigureJoystickMapButtonsAndAxes(SDL_Joystick *joystick)
     axis_x     = LoadCustomImage("joystick/axis_x.png");
     axis_y     = LoadCustomImage("joystick/axis_y.png");
 
+    marker = button;   /* initialize with reliable default value */
+
     bitmaps_initialized = TRUE;
   }