/* Declare the environ system variable. Copyright (C) 2015-2016 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 extern char **environ; # endif # define HAVE_ENVIRON_DECL #endif