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-rw-r--r--sysdeps/generic/device-nrs.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/sysdeps/generic/device-nrs.h b/sysdeps/generic/device-nrs.h
index 3ff5c39de6..b0ce6687c6 100644
--- a/sysdeps/generic/device-nrs.h
+++ b/sysdeps/generic/device-nrs.h
@@ -1,5 +1,5 @@
 /* Device numbers of devices used in the implementation.  Generic version.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,4 +22,7 @@
 
 /* By default we know no device numbers.  */
 
+/* We cannot check whether a given device is a tty.  */
+#define DEV_TTY_P(dev) (0)
+
 #endif	/* device-nrs.h */