#define PL_uid (*Perl_Iuid_ptr(aTHX))
#undef PL_unicode
#define PL_unicode (*Perl_Iunicode_ptr(aTHX))
+#undef PL_unitcheckav
+#define PL_unitcheckav (*Perl_Iunitcheckav_ptr(aTHX))
+#undef PL_unitcheckav_save
+#define PL_unitcheckav_save (*Perl_Iunitcheckav_save_ptr(aTHX))
#undef PL_unlockhook
#define PL_unlockhook (*Perl_Iunlockhook_ptr(aTHX))
#undef PL_unsafe