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- /* Declare the environ system variable.
- Copyright (C) 2015-2022 Free Software Foundation, Inc.
- This file is part of the libiberty library.
- Libiberty is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
- Libiberty is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with libiberty; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
- Boston, MA 02110-1301, USA. */
- /* On OSX, the environ variable can be used directly in the code of an
- executable, but cannot be used in the code of a shared library (such as
- GCC's liblto_plugin, which links in libiberty code). Instead, the
- function _NSGetEnviron can be called to get the address of environ. */
- #ifndef HAVE_ENVIRON_DECL
- # ifdef __APPLE__
- # include <crt_externs.h>
- # define environ (*_NSGetEnviron ())
- # else
- # ifndef environ
- extern char **environ;
- # endif
- # endif
- # define HAVE_ENVIRON_DECL
- #endif
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