Perl_croak(aTHX_ "Experimental lvalue references not enabled");
Perl_ck_warner_d(aTHX_ packWARN(WARN_EXPERIMENTAL__LVALUE_REFS),
"Lvalue references are experimental");
Perl_croak(aTHX_ "Experimental lvalue references not enabled");
Perl_ck_warner_d(aTHX_ packWARN(WARN_EXPERIMENTAL__LVALUE_REFS),
"Lvalue references are experimental");