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C++11 checks in CMakeLists.txt, added atomic.hpp

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Check if the superproject has already enabled C++11 before enabling
it in CMakeLists.txt.

Added utility file atomic.hpp to select the correct atomics header
to work around issues with ancient GCC 4.4.
This commit is contained in:
Teemu Ollakka
2019-02-13 13:00:08 +02:00
parent be98517cb3
commit af8383daf0
3 changed files with 49 additions and 5 deletions
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29
include/wsrep/atomic.hpp Normal file
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@ -0,0 +1,29 @@
/*
* Copyright (C) 2019 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
* Wsrep-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Wsrep-lib 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with wsrep-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef WSREP_ATOMIC_HPP
#define WSREP_ATOMIC_HPP
#if defined(__GNUG__) && (__GNUC__ == 4 && __GNUC_MINOR__ == 4)
#include <cstdatomic>
#else
#include <atomic>
#endif // defined(__GNUG__) && (__GNUC__ == 4 && __GNUC_MINOR__ == 4)
#endif // WSREP_ATOMIC_HPP

4
include/wsrep/logger.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2018 Codership Oy <info@codership.com>
* Copyright (C) 2018-2019 Codership Oy <info@codership.com>
*
* This file is part of wsrep-lib.
*
@ -22,10 +22,10 @@
#include "mutex.hpp"
#include "lock.hpp"
#include "atomic.hpp"
#include <iosfwd>
#include <sstream>
#include <atomic>
#define WSREP_LOG_DEBUG(debug_level_fn, debug_level, msg) \
do { \