PERL_CALLCONV void Perl_dounwind(pTHX_ I32 cxix);
PERL_CALLCONV bool Perl_do_aexec(pTHX_ SV* really, SV** mark, SV** sp);
PERL_CALLCONV bool Perl_do_aexec5(pTHX_ SV* really, SV** mark, SV** sp, int fd, int flag);
-PERL_CALLCONV int Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int flag);
+PERL_CALLCONV int Perl_do_binmode(pTHX_ PerlIO *fp, int iotype, int mode);
PERL_CALLCONV void Perl_do_chop(pTHX_ SV* asv, SV* sv);
PERL_CALLCONV bool Perl_do_close(pTHX_ GV* gv, bool not_implicit);
PERL_CALLCONV bool Perl_do_eof(pTHX_ GV* gv);