src/third_party/mozjs-45/python/mozbuild/mozbuild/test/backend/data/test_config/file.h.in

/* Comment */
#define foo
#define foo 42
#undef foo
#define bar
#define bar 42
#undef bar

# undef baz

#ifdef foo
#   undef   foo
#  define foo    42
  #     define   foo   42   
#endif