gcc/libstdc++-v3/config/os/aix/os_defines.h

// Specific definitions for AIX  -*- C++ -*-

// Copyright (C) 2000-2015 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library 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 3, or (at your option)
// any later version.

// This 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 General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file bits/os_defines.h
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{iosfwd}
 */

#ifndef _GLIBCXX_OS_DEFINES
#define _GLIBCXX_OS_DEFINES

// System-specific #define, typedefs, corrections, etc, go here.  This
// file will come before all others.

// off64_t
#ifndef _LARGE_FILE_API
#define _LARGE_FILE_API
#endif

// atomic types
#ifndef _ALL_SOURCE
#define _ALL_SOURCE
#endif

// C99 math
#ifndef __COMPATMATH__
#define __COMPATMATH__
#endif

#endif