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      1 // Specific definitions for generic platforms  -*- C++ -*-
      2 
      3 // Copyright (C) 2000-2022 Free Software Foundation, Inc.
      4 //
      5 // This file is part of the GNU ISO C++ Library.  This library is free
      6 // software; you can redistribute it and/or modify it under the
      7 // terms of the GNU General Public License as published by the
      8 // Free Software Foundation; either version 3, or (at your option)
      9 // any later version.
     10 
     11 // This library is distributed in the hope that it will be useful,
     12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 // GNU General Public License for more details.
     15 
     16 // Under Section 7 of GPL version 3, you are granted additional
     17 // permissions described in the GCC Runtime Library Exception, version
     18 // 3.1, as published by the Free Software Foundation.
     19 
     20 // You should have received a copy of the GNU General Public License and
     21 // a copy of the GCC Runtime Library Exception along with this program;
     22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     23 // <http://www.gnu.org/licenses/>.
     24 
     25 /** @file bits/os_defines.h
     26  *  This is an internal header file, included by other library headers.
     27  *  Do not attempt to use it directly. @headername{iosfwd}
     28  */
     29 
     30 #ifndef _GLIBCXX_OS_DEFINES
     31 #  define _GLIBCXX_OS_DEFINES
     32 
     33 // System-specific #define, typedefs, corrections, etc, go here.  This
     34 // file will come before all others.
     35 
     36 //  Define as 0, if you want, to enable inlining of gthread functions.
     37 //  By default, don't pollute libstdc++ with win32api names.
     38 #if !defined (__GTHREAD_HIDE_WIN32API)
     39 # define __GTHREAD_HIDE_WIN32API 1
     40 #endif
     41 
     42 // Don't let win32api windef.h define min and max as macros
     43 // if included after c++config.h.
     44 #undef NOMINMAX
     45 #define NOMINMAX 1
     46 
     47 #if defined (_GLIBCXX_DLL)
     48 #define _GLIBCXX_PSEUDO_VISIBILITY_default __attribute__ ((__dllimport__))
     49 #else
     50 #define _GLIBCXX_PSEUDO_VISIBILITY_default
     51 #endif
     52 #define _GLIBCXX_PSEUDO_VISIBILITY_hidden
     53 
     54 #define _GLIBCXX_PSEUDO_VISIBILITY(V) _GLIBCXX_PSEUDO_VISIBILITY_ ## V
     55 
     56 // See libstdc++/20806.
     57 #define _GLIBCXX_HAVE_DOS_BASED_FILESYSTEM 1
     58 
     59 // See  libstdc++/37522.
     60 #define _GLIBCXX_HAVE_BROKEN_VSWPRINTF 1
     61 
     62 // See libstdc++/43738
     63 // On native windows targets there is no ioctl function. And the existing
     64 // ioctlsocket function doesn't work for normal file-descriptors.
     65 #define _GLIBCXX_NO_IOCTL 1
     66 
     67 // See libstdc++/51135
     68 // Class constructors/destructors have __thiscall calling-convention on
     69 // IA 32-bit
     70 #if defined (__i386__)
     71 #define _GLIBCXX_CDTOR_CALLABI __thiscall
     72 #endif
     73 
     74 #ifdef __x86_64__
     75 #define _GLIBCXX_LLP64 1
     76 #endif
     77 
     78 // See libstdc++/59807
     79 #define _GTHREAD_USE_MUTEX_INIT_FUNC 1
     80 
     81 // See libstdc++/94268
     82 #define _GLIBCXX_BUFSIZ 4096
     83 
     84 #endif
     85