PERL_CALLCONV OP* Perl_newWHILEOP(pTHX_ I32 flags, I32 debuggable, LOOP* loop, I32 whileline, OP* expr, OP* block, OP* cont);
PERL_CALLCONV PERL_SI* Perl_new_stackinfo(pTHX_ I32 stitems, I32 cxitems);
-PERL_CALLCONV char* Perl_new_vstring(pTHX_ char *vstr, SV *sv);
+PERL_CALLCONV char* Perl_scan_vstring(pTHX_ char *vstr, SV *sv);
+PERL_CALLCONV char* Perl_scan_version(pTHX_ char *vstr, SV *sv);
+PERL_CALLCONV SV* Perl_new_version(pTHX_ SV *ver);
+PERL_CALLCONV SV* Perl_upg_version(pTHX_ SV *ver);
+PERL_CALLCONV SV* Perl_vnumify(pTHX_ SV *sv, SV *vs);
+PERL_CALLCONV SV* Perl_vstringify(pTHX_ SV *sv, SV *vs);
PERL_CALLCONV PerlIO* Perl_nextargv(pTHX_ GV* gv);
PERL_CALLCONV char* Perl_ninstr(pTHX_ const char* big, const char* bigend, const char* little, const char* lend);
PERL_CALLCONV OP* Perl_oopsCV(pTHX_ OP* o);