PL_minus_F = proto_perl->Iminus_F;
PL_doswitches = proto_perl->Idoswitches;
PL_dowarn = proto_perl->Idowarn;
+#ifdef PERL_SAWAMPERSAND
PL_sawampersand = proto_perl->Isawampersand;
+#endif
PL_unsafe = proto_perl->Iunsafe;
PL_perldb = proto_perl->Iperldb;
PL_perl_destruct_level = proto_perl->Iperl_destruct_level;