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-rw-r--r--libio/iofclose.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/libio/iofclose.c b/libio/iofclose.c
index 61f7800ed8..b9cb0a9980 100644
--- a/libio/iofclose.c
+++ b/libio/iofclose.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1995, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU IO Library.
This library is free software; you can redistribute it and/or
@@ -36,6 +36,12 @@ _IO_new_fclose (fp)
CHECK_FILE(fp, EOF);
+ /* We desperately try to help programs which are using streams in a
+ strange way and mix old and new functions. Detect old streams
+ here. */
+ if (fp->_vtable_offset != 0)
+ return _IO_old_fclose (fp);
+
_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
_IO_flockfile (fp);
if (fp->_IO_file_flags & _IO_IS_FILEBUF)