PERL_CALLCONV char* Perl_sv_2pv_nolen(pTHX_ SV* sv);
PERL_CALLCONV char* Perl_sv_2pvutf8_nolen(pTHX_ SV* sv);
PERL_CALLCONV char* Perl_sv_2pvbyte_nolen(pTHX_ SV* sv);
-PERL_CALLCONV char* Perl_sv_pv(pTHX_ SV *sv);
-PERL_CALLCONV char* Perl_sv_pvutf8(pTHX_ SV *sv);
-PERL_CALLCONV char* Perl_sv_pvbyte(pTHX_ SV *sv);
+/* PERL_CALLCONV char* sv_pv(pTHX_ SV *sv); */
+/* PERL_CALLCONV char* sv_pvutf8(pTHX_ SV *sv); */
+/* PERL_CALLCONV char* sv_pvbyte(pTHX_ SV *sv); */
/* PERL_CALLCONV STRLEN sv_utf8_upgrade(pTHX_ SV *sv); */
PERL_CALLCONV bool Perl_sv_utf8_downgrade(pTHX_ SV *sv, bool fail_ok);
PERL_CALLCONV void Perl_sv_utf8_encode(pTHX_ SV *sv);