Insert libio rewrite and its various changes from devo.

From-SVN: r15129

1 files changed, 27 insertions, 2 deletions

diff --git a/libio/stdio/putchar.c b/libio/stdio/putchar.c
index a0a972f..f97af04 100644
--- a/libio/stdio/putchar.c
+++ b/libio/stdio/putchar.c
@@ -1,10 +1,35 @@
+/* Copyright (C) 1991, 1995, 1996, 1997 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
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
 #include "libioP.h"
 #include "stdio.h"
+
 #undef putchar
 
 int
-putchar(c)
+putchar (c)
      int c;
 {
-  return _IO_putc(c, stdout);
+  int result;
+  _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile,
+			    _IO_stdout);
+  _IO_flockfile (_IO_stdout);
+  result = _IO_putc_unlocked (c, _IO_stdout);
+  _IO_cleanup_region_end (1);
+  return result;
 }