#include <folly/futures/Timekeeper.h>
#include <folly/futures/detail/Core.h>
+#ifndef FOLLY_FUTURE_USING_FIBER
#if FOLLY_MOBILE || defined(__APPLE__)
#define FOLLY_FUTURE_USING_FIBER 0
#else
#define FOLLY_FUTURE_USING_FIBER 1
#include <folly/fibers/Baton.h>
#endif
+#endif
namespace folly {