extern long copied;
+extern rtsBool work_stealing;
+
#ifdef DEBUG
extern nat mutlist_MUTVARS, mutlist_MUTARRS, mutlist_MVARS, mutlist_OTHERS;
#endif
extern StgWord64 whitehole_spin;
#endif
+void gcWorkerThread (Capability *cap);
+void initGcThreads (void);
+void waitForGcThreads (Capability *cap);
+void releaseGCThreads (Capability *cap);
+
#define WORK_UNIT_WORDS 128
#endif /* GC_H */