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-rw-r--r--libio/libio.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/libio/libio.h b/libio/libio.h
index 880edaf289..1bd31894e8 100644
--- a/libio/libio.h
+++ b/libio/libio.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991,92,93,94,95,97,98,99,2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1995, 1997-2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Per Bothner <bothner@cygnus.com>.
@@ -495,6 +495,8 @@ weak_extern (_IO_stdin_used);
(__fp)->_mode = -1; \
__result = (__fp)->_mode; \
} \
+ else if (__builtin_constant_p (__mode) && (__mode) == 0) \
+ __result = (__fp)->_mode; \
else \
__result = _IO_fwide (__fp, __result); \
__result; })