111
|
1 /* Declare the environ system variable.
|
|
2 Copyright (C) 2015-2017 Free Software Foundation, Inc.
|
|
3
|
|
4 This file is part of the libiberty library.
|
|
5 Libiberty is free software; you can redistribute it and/or
|
|
6 modify it under the terms of the GNU Library General Public
|
|
7 License as published by the Free Software Foundation; either
|
|
8 version 2 of the License, or (at your option) any later version.
|
|
9
|
|
10 Libiberty 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 Library General Public License for more details.
|
|
14
|
|
15 You should have received a copy of the GNU Library General Public
|
|
16 License along with libiberty; see the file COPYING.LIB. If not,
|
|
17 write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
|
|
18 Boston, MA 02110-1301, USA. */
|
|
19
|
|
20 /* On OSX, the environ variable can be used directly in the code of an
|
|
21 executable, but cannot be used in the code of a shared library (such as
|
|
22 GCC's liblto_plugin, which links in libiberty code). Instead, the
|
|
23 function _NSGetEnviron can be called to get the address of environ. */
|
|
24
|
|
25 #ifndef HAVE_ENVIRON_DECL
|
|
26 # ifdef __APPLE__
|
|
27 # include <crt_externs.h>
|
|
28 # define environ (*_NSGetEnviron ())
|
|
29 # else
|
|
30 # ifndef environ
|
|
31 extern char **environ;
|
|
32 # endif
|
|
33 # endif
|
|
34 # define HAVE_ENVIRON_DECL
|
|
35 #endif
|