PCR_Th_ML_Acquire   52 gc/include/private/gc_locks.h #    define LOCK() PCR_Th_ML_Acquire(&GC_allocate_ml)
PCR_Th_ML_Acquire   67 gc/include/private/gc_locks.h #    define LOCK() PCR_Th_ML_Acquire(&GC_allocate_ml)