text: // Specific definitions for generic platforms  -*- C++ -*-
  
  // Copyright (C) 2000-2016 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.
  
  //  Define as 0, if you want, to enable inlining of gthread functions.
  //  By default, don't pollute libstdc++ with win32api names.
  #if !defined (__GTHREAD_HIDE_WIN32API)
  # define __GTHREAD_HIDE_WIN32API 1
  #endif
  
  // Don't let win32api windef.h define min and max as macros
  // if included after c++config.h.
  #undef NOMINMAX
  #define NOMINMAX 1
  
  #if defined (_GLIBCXX_DLL)
  #define _GLIBCXX_PSEUDO_VISIBILITY_default __attribute__ ((__dllimport__))
  #else
  #define _GLIBCXX_PSEUDO_VISIBILITY_default
  #endif
  #define _GLIBCXX_PSEUDO_VISIBILITY_hidden
  
  #define _GLIBCXX_PSEUDO_VISIBILITY(V) _GLIBCXX_PSEUDO_VISIBILITY_ ## V
  
  // See libstdc++/20806.
  #define _GLIBCXX_HAVE_DOS_BASED_FILESYSTEM 1
  
  // See  libstdc++/37522.
  #define _GLIBCXX_HAVE_BROKEN_VSWPRINTF 1
  
  // See libstdc++/43738
  // On native windows targets there is no ioctl function. And the existing
  // ioctlsocket function doesn't work for normal file-descriptors.
  #define _GLIBCXX_NO_IOCTL 1
  
  // See libstdc++/51135
  // Class constructors/destructors have __thiscall calling-convention on
  // IA 32-bit
  #if defined (__i386__)
  #define _GLIBCXX_CDTOR_CALLABI __thiscall
  #endif
  
  #ifdef __x86_64__
  #define _GLIBCXX_LLP64 1
  #endif
  
  // See libstdc++/59807
  #define _GTHREAD_USE_MUTEX_INIT_FUNC 1
  
  #endif
  