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a986484f UD |
1 | /* Optional code to distinguish library flavours. |
2 | Copyright (C) 2001 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2001. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
a986484f UD |
10 | |
11 | The GNU C 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 GNU | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
a986484f | 15 | |
41bdb6e2 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
a986484f UD |
20 | |
21 | #ifndef _DL_LIBRECON_H | |
22 | #define _DL_LIBRECON_H 1 | |
23 | ||
24 | /* Recognizing extra environment variables. */ | |
25 | #define EXTRA_LD_ENVVARS \ | |
26 | case 13: \ | |
67c94753 | 27 | if (memcmp (envline, "ASSUME_KERNEL", 13) == 0) \ |
a986484f UD |
28 | { \ |
29 | unsigned long int i, j, osversion = 0; \ | |
67c94753 | 30 | char *p = &envline[14], *q; \ |
a986484f UD |
31 | \ |
32 | for (i = 0; i < 3; i++, p = q + 1) \ | |
33 | { \ | |
34 | j = __strtoul_internal (p, &q, 0, 0); \ | |
35 | if (j >= 255 || p == q || (i < 2 && *q && *q != '.')) \ | |
36 | { \ | |
37 | osversion = 0; \ | |
38 | break; \ | |
39 | } \ | |
40 | osversion |= j << (16 - 8 * i); \ | |
41 | if (!*q) \ | |
42 | break; \ | |
43 | } \ | |
44 | if (osversion) \ | |
d6b5d570 | 45 | GL(dl_osversion) = osversion; \ |
a986484f UD |
46 | break; \ |
47 | } | |
48 | ||
49 | #endif /* dl-librecon.h */ |