rb_atomic_t         6 ruby_atomic.h  typedef unsigned int rb_atomic_t;
rb_atomic_t        27 ruby_atomic.h  typedef unsigned int rb_atomic_t; /* Anything OK */
rb_atomic_t        44 ruby_atomic.h  typedef LONG rb_atomic_t;
rb_atomic_t        95 ruby_atomic.h  typedef unsigned int rb_atomic_t;
rb_atomic_t       120 ruby_atomic.h  typedef int rb_atomic_t;