int (CPERLscope(*svt_clear))(pTHX_ SV *sv, MAGIC* mg);
int (CPERLscope(*svt_free)) (pTHX_ SV *sv, MAGIC* mg);
int (CPERLscope(*svt_copy)) (pTHX_ SV *sv, MAGIC* mg,
- SV *nsv, const char *name, int namlen);
+ SV *nsv, const char *name, I32 namlen);
int (CPERLscope(*svt_dup)) (pTHX_ MAGIC *mg, CLONE_PARAMS *param);
int (CPERLscope(*svt_local))(pTHX_ SV *nsv, MAGIC *mg);
};