commit 424dbde891486ad6a6c00c61a334031ff18f5556
  Author: Alan Coopersmith <alan.coopersmith@oracle.com>
  Date:   Fri Dec 9 10:08:55 2011 -0800

    CheckForEmptyMask does not need to declare int n twice

    Just use the existing n variable again in the ARGB_CURSOR loop
    instead of creating another one.

    Fixes gcc -Wshadow warning:
    cursor.c: In function 'CheckForEmptyMask':
    cursor.c:155:6: warning: declaration of 'n' shadows a previous local
    cursor.c:146:9: warning: shadowed declaration is here
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>