#define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash))
#define SvWEAKREF(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_WEAKREF)) \
#define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash))
#define SvWEAKREF(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_WEAKREF)) \