| /* Copyright (C) 1991-2018 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "libioP.h" |
| #include "stdio.h" |
| |
| #undef putchar |
| |
| int |
| putchar (int c) |
| { |
| int result; |
| _IO_acquire_lock (_IO_stdout); |
| result = _IO_putc_unlocked (c, _IO_stdout); |
| _IO_release_lock (_IO_stdout); |
| return result; |
| } |
| |
| #if defined weak_alias && !defined _IO_MTSAFE_IO |
| #undef putchar_unlocked |
| weak_alias (putchar, putchar_unlocked) |
| #endif |
