+#define my_socketpair Perl_my_socketpair
+#if defined(USE_PERLIO) && !defined(USE_SFIO)
+#define PerlIO_close(a) Perl_PerlIO_close(aTHX_ a)
+#define PerlIO_fill(a) Perl_PerlIO_fill(aTHX_ a)
+#define PerlIO_fileno(a) Perl_PerlIO_fileno(aTHX_ a)
+#define PerlIO_eof(a) Perl_PerlIO_eof(aTHX_ a)
+#define PerlIO_error(a) Perl_PerlIO_error(aTHX_ a)
+#define PerlIO_flush(a) Perl_PerlIO_flush(aTHX_ a)
+#define PerlIO_clearerr(a) Perl_PerlIO_clearerr(aTHX_ a)
+#define PerlIO_set_cnt(a,b) Perl_PerlIO_set_cnt(aTHX_ a,b)
+#define PerlIO_set_ptrcnt(a,b,c) Perl_PerlIO_set_ptrcnt(aTHX_ a,b,c)
+#define PerlIO_setlinebuf(a) Perl_PerlIO_setlinebuf(aTHX_ a)
+#define PerlIO_read(a,b,c) Perl_PerlIO_read(aTHX_ a,b,c)
+#define PerlIO_write(a,b,c) Perl_PerlIO_write(aTHX_ a,b,c)
+#define PerlIO_unread(a,b,c) Perl_PerlIO_unread(aTHX_ a,b,c)
+#define PerlIO_tell(a) Perl_PerlIO_tell(aTHX_ a)
+#define PerlIO_seek(a,b,c) Perl_PerlIO_seek(aTHX_ a,b,c)
+#define PerlIO_get_base(a) Perl_PerlIO_get_base(aTHX_ a)
+#define PerlIO_get_ptr(a) Perl_PerlIO_get_ptr(aTHX_ a)
+#define PerlIO_get_bufsiz(a) Perl_PerlIO_get_bufsiz(aTHX_ a)
+#define PerlIO_get_cnt(a) Perl_PerlIO_get_cnt(aTHX_ a)
+#define PerlIO_stdin() Perl_PerlIO_stdin(aTHX)
+#define PerlIO_stdout() Perl_PerlIO_stdout(aTHX)
+#define PerlIO_stderr() Perl_PerlIO_stderr(aTHX)
+#endif /* PERLIO_LAYERS */