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1 | // Specific definitions for GNU/Linux -*- C++ -*- |
2 | ||
a5544970 | 3 | // Copyright (C) 2000-2019 Free Software Foundation, Inc. |
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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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
79b425c6 PE |
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 | ||
748086b7 JJ |
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/>. | |
79b425c6 | 24 | |
f910786b | 25 | /** @file bits/os_defines.h |
143c27b0 | 26 | * This is an internal header file, included by other library headers. |
f910786b | 27 | * Do not attempt to use it directly. @headername{iosfwd} |
143c27b0 BK |
28 | */ |
29 | ||
3d7c150e BK |
30 | #ifndef _GLIBCXX_OS_DEFINES |
31 | #define _GLIBCXX_OS_DEFINES 1 | |
8b8ab21c | 32 | |
f295ecef BK |
33 | // System-specific #define, typedefs, corrections, etc, go here. This |
34 | // file will come before all others. | |
35 | ||
4bc95009 BK |
36 | // This keeps isanum, et al from being propagated as macros. |
37 | #define __NO_CTYPE 1 | |
38 | ||
d0c3e4f4 HPN |
39 | #include <features.h> |
40 | ||
1b6ce36f BK |
41 | // Provide a declaration for the possibly deprecated gets function, as |
42 | // glibc 2.15 and later does not declare gets for ISO C11 when | |
43 | // __GNU_SOURCE is defined. | |
44 | #if __GLIBC_PREREQ(2,15) && defined(_GNU_SOURCE) | |
45 | # undef _GLIBCXX_HAVE_GETS | |
46 | #endif | |
47 | ||
350fe282 JW |
48 | // Glibc 2.23 removed the obsolete isinf and isnan declarations. Check the |
49 | // version dynamically in case it has changed since libstdc++ was configured. | |
50 | #define _GLIBCXX_NO_OBSOLETE_ISINF_ISNAN_DYNAMIC __GLIBC_PREREQ(2,23) | |
51 | ||
3b87de3d | 52 | #endif |