source: trunk/libs/newlib/src/include/environ.h @ 666

Last change on this file since 666 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 1.3 KB
Line 
1/* Declare the environ system variable.
2   Copyright (C) 2015 Free Software Foundation, Inc.
3
4This file is part of the libiberty library.
5Libiberty is free software; you can redistribute it and/or
6modify it under the terms of the GNU Library General Public
7License as published by the Free Software Foundation; either
8version 2 of the License, or (at your option) any later version.
9
10Libiberty is distributed in the hope that it will be useful,
11but WITHOUT ANY WARRANTY; without even the implied warranty of
12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13Library General Public License for more details.
14
15You should have received a copy of the GNU Library General Public
16License along with libiberty; see the file COPYING.LIB.  If not,
17write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
18Boston, 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
30extern char **environ;
31#  endif
32#  define HAVE_ENVIRON_DECL
33#endif
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