refcounted_he_fetch() never was public, but in recent 5.13.x versions it is
no longer linkable.
STATIC SV *lt_hint(pTHX) {
#define lt_hint() lt_hint(aTHX)
SV *hint;
STATIC SV *lt_hint(pTHX) {
#define lt_hint() lt_hint(aTHX)
SV *hint;
-#if LT_HAS_PERL(5, 9, 5)
+#ifdef cop_hints_fetch_pvn
+ hint = cop_hints_fetch_pvn(PL_curcop, __PACKAGE__, __PACKAGE_LEN__, lt_hash,0);
+#elif LT_HAS_PERL(5, 9, 5)
hint = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash,
NULL,
__PACKAGE__, __PACKAGE_LEN__,
hint = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash,
NULL,
__PACKAGE__, __PACKAGE_LEN__,