# define putenv PerlEnv_putenv
# define getenv PerlEnv_getenv
# define uname PerlEnv_uname
-# define stdin PerlIO_stdin()
-# define stdout PerlIO_stdout()
-# define stderr PerlIO_stderr()
+# define stdin PerlSIO_stdin()
+# define stdout PerlSIO_stdout()
+# define stderr PerlSIO_stderr()
# define fopen PerlIO_open
# define fclose PerlIO_close
# define feof PerlIO_eof
# define freopen PerlIO_reopen
# define fread(b,s,c,f) PerlIO_read((f),(b),(s*c))
# define fwrite(b,s,c,f) PerlIO_write((f),(b),(s*c))
-# define setbuf PerlIO_setbuf
-# define setvbuf PerlIO_setvbuf
-# define setlinebuf PerlIO_setlinebuf
+# define setbuf PerlSIO_setbuf
+# define setvbuf PerlSIO_setvbuf
+# define setlinebuf PerlSIO_setlinebuf
# define stdoutf PerlIO_stdoutf
# define vfprintf PerlIO_vprintf
# define ftell PerlIO_tell