#endif
PERL_CALLCONV HV * Perl_refcounted_he_chain_2hv(pTHX_ const struct refcounted_he *c);
PERL_CALLCONV void Perl_refcounted_he_free(pTHX_ struct refcounted_he *he);
-PERL_CALLCONV struct refcounted_he * Perl_refcounted_he_new(pTHX_ struct refcounted_he *const parent, SV *key, SV *value);
+PERL_CALLCONV struct refcounted_he * Perl_refcounted_he_new(pTHX_ struct refcounted_he *const parent, SV *const key, SV *const value);
PERL_CALLCONV SV** Perl_hv_store(pTHX_ HV* tb, const char* key, I32 klen, SV* val, U32 hash);
PERL_CALLCONV HE* Perl_hv_store_ent(pTHX_ HV* tb, SV* key, SV* val, U32 hash);
PERL_CALLCONV SV** Perl_hv_store_flags(pTHX_ HV* tb, const char* key, I32 klen, SV* val, U32 hash, int flags);