+#define pPTBL pTHX
+#define pPTBL_ pTHX_
+#define aPTBL aTHX
+#define aPTBL_ aTHX_
+
+#include "ptable.h"
+
+#define ptable_store(T, K, V) ptable_store(aTHX_ (T), (K), (V))
+#define ptable_free(T) ptable_free(aTHX_ (T))
+
+#define MY_CXT_KEY __PACKAGE__ "::_guts" XS_VERSION
+
+typedef struct {
+ ptable *tbl;
+ tTHX owner;
+} my_cxt_t;
+
+START_MY_CXT
+
+typedef struct {
+ ptable *tbl;
+#if REP_HAS_PERL(5, 13, 2)
+ CLONE_PARAMS *params;
+#else
+ CLONE_PARAMS params;
+#endif
+} rep_ptable_clone_ud;
+
+#if REP_HAS_PERL(5, 13, 2)
+# define rep_ptable_clone_ud_init(U, T, O) \
+ (U).tbl = (T); \
+ (U).params = Perl_clone_params_new((O), aTHX)
+# define rep_ptable_clone_ud_deinit(U) Perl_clone_params_del((U).params)
+# define rep_dup_inc(S, U) SvREFCNT_inc(sv_dup((S), (U)->params))
+#else
+# define rep_ptable_clone_ud_init(U, T, O) \
+ (U).tbl = (T); \
+ (U).params.stashes = newAV(); \
+ (U).params.flags = 0; \
+ (U).params.proto_perl = (O)
+# define rep_ptable_clone_ud_deinit(U) SvREFCNT_dec((U).params.stashes)
+# define rep_dup_inc(S, U) SvREFCNT_inc(sv_dup((S), &((U)->params)))
+#endif
+
+STATIC void rep_ptable_clone(pTHX_ ptable_ent *ent, void *ud_) {
+ rep_ptable_clone_ud *ud = ud_;
+ rep_hint_t *h1 = ent->val;
+ rep_hint_t *h2;
+
+ h2 = PerlMemShared_malloc(sizeof *h2);
+ h2->comp = rep_dup_inc(h1->comp, ud);
+ h2->exec = rep_dup_inc(h1->exec, ud);
+#if REP_WORKAROUND_REQUIRE_PROPAGATION
+ h2->require_tag = PTR2IV(rep_dup_inc(INT2PTR(SV *, h1->require_tag), ud));
+#endif
+
+ ptable_store(ud->tbl, ent->key, h2);
+}