Fix SDL_RectEquals define

include/SDL_rect.h

@@ -76,7 +76,7 @@ typedef struct SDL_Rect
 /**
  *  \brief Returns true if the two rectangles are equal.
  */
-#define SDL_RectEquals(A, B)   (((A) && ((B)) && \
+#define SDL_RectEquals(A, B)   (((A)) && ((B)) && \
                                 ((A)->x == (B)->x) && ((A)->y == (B)->y) && \
                                 ((A)->w == (B)->w) && ((A)->h == (B)->h))