| 1 | /* Features part to handle 64-bit time_t support. |
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| 2 | Copyright (C) 2021-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | /* We need to know the word size in order to check the time size. */ |
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| 20 | #include <bits/wordsize.h> |
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| 21 | #include <bits/timesize.h> |
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| 22 | |
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| 23 | #if defined _TIME_BITS |
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| 24 | # if _TIME_BITS == 64 |
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| 25 | # if ! defined (_FILE_OFFSET_BITS) || _FILE_OFFSET_BITS != 64 |
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| 26 | # error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64" |
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| 27 | # elif __TIMESIZE == 32 |
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| 28 | # define __USE_TIME_BITS64 1 |
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| 29 | # endif |
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| 30 | # elif _TIME_BITS == 32 |
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| 31 | # if __TIMESIZE > 32 |
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| 32 | # error "_TIME_BITS=32 is not compatible with __TIMESIZE > 32" |
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| 33 | # endif |
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| 34 | # else |
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| 35 | # error Invalid _TIME_BITS value (can only be 32 or 64-bit) |
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| 36 | # endif |
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| 37 | #endif |
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| 38 | |
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