1/* Features part to handle 64-bit time_t support.
2 Copyright (C) 2021-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19/* We need to know the word size in order to check the time size. */
20#include <bits/wordsize.h>
21#include <bits/timesize.h>
22
23#if defined _TIME_BITS
24# if _TIME_BITS == 64
25# if ! defined (_FILE_OFFSET_BITS) || _FILE_OFFSET_BITS != 64
26# error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
27# elif __TIMESIZE == 32
28# define __USE_TIME_BITS64 1
29# endif
30# elif _TIME_BITS == 32
31# if __TIMESIZE > 32
32# error "_TIME_BITS=32 is not compatible with __TIMESIZE > 32"
33# endif
34# else
35# error Invalid _TIME_BITS value (can only be 32 or 64-bit)
36# endif
37#endif
38