37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "libioP.h"
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#include "stdio.h"
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#undef putchar
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int
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putchar (int c)
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{
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int result;
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_IO_acquire_lock (_IO_stdout);
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result = _IO_putc_unlocked (c, _IO_stdout);
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_IO_release_lock (_IO_stdout);
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return result;
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}
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#if defined weak_alias && !defined _IO_MTSAFE_IO
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#undef putchar_unlocked
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weak_alias (putchar, putchar_unlocked)
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#endif
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