| [444] | 1 | /* Declare the environ system variable. |
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| 2 | Copyright (C) 2015 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of the libiberty library. |
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| 5 | Libiberty is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Library General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | Libiberty 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 | Library 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 Library General Public |
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| 16 | License along with libiberty; see the file COPYING.LIB. If not, |
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| 17 | write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, |
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| 18 | Boston, MA 02110-1301, USA. */ |
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| 19 | |
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| 20 | /* On OSX, the environ variable can be used directly in the code of an |
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| 21 | executable, but cannot be used in the code of a shared library (such as |
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| 22 | GCC's liblto_plugin, which links in libiberty code). Instead, the |
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| 23 | function _NSGetEnviron can be called to get the address of environ. */ |
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| 24 | |
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| 25 | #ifndef HAVE_ENVIRON_DECL |
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| 26 | # ifdef __APPLE__ |
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| 27 | # include <crt_externs.h> |
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| 28 | # define environ (*_NSGetEnviron ()) |
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| 29 | # else |
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| 30 | extern char **environ; |
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| 31 | # endif |
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| 32 | # define HAVE_ENVIRON_DECL |
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| 33 | #endif |
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