#if defined(PERL_IN_UTIL_C) || defined(PERL_DECL_PROT)
STATIC OP* S_vdie(pTHX_ const char* pat, va_list* args);
#endif
-PERL_CALLCONV OP* Perl_die_where(pTHX_ SV* msv);
+PERL_CALLCONV void Perl_die_where(pTHX_ SV* msv)
+ __attribute__noreturn__;
+
PERL_CALLCONV void Perl_dounwind(pTHX_ I32 cxix);
/* PERL_CALLCONV bool Perl_do_aexec(pTHX_ SV* really, SV** mark, SV** sp)
__attribute__nonnull__(pTHX_2)