1*38fd1498Szrj /* Declare the environ system variable. 2*38fd1498Szrj Copyright (C) 2015-2018 Free Software Foundation, Inc. 3*38fd1498Szrj 4*38fd1498Szrj This file is part of the libiberty library. 5*38fd1498Szrj Libiberty is free software; you can redistribute it and/or 6*38fd1498Szrj modify it under the terms of the GNU Library General Public 7*38fd1498Szrj License as published by the Free Software Foundation; either 8*38fd1498Szrj version 2 of the License, or (at your option) any later version. 9*38fd1498Szrj 10*38fd1498Szrj Libiberty is distributed in the hope that it will be useful, 11*38fd1498Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of 12*38fd1498Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13*38fd1498Szrj Library General Public License for more details. 14*38fd1498Szrj 15*38fd1498Szrj You should have received a copy of the GNU Library General Public 16*38fd1498Szrj License along with libiberty; see the file COPYING.LIB. If not, 17*38fd1498Szrj write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, 18*38fd1498Szrj Boston, MA 02110-1301, USA. */ 19*38fd1498Szrj 20*38fd1498Szrj /* On OSX, the environ variable can be used directly in the code of an 21*38fd1498Szrj executable, but cannot be used in the code of a shared library (such as 22*38fd1498Szrj GCC's liblto_plugin, which links in libiberty code). Instead, the 23*38fd1498Szrj function _NSGetEnviron can be called to get the address of environ. */ 24*38fd1498Szrj 25*38fd1498Szrj #ifndef HAVE_ENVIRON_DECL 26*38fd1498Szrj # ifdef __APPLE__ 27*38fd1498Szrj # include <crt_externs.h> 28*38fd1498Szrj # define environ (*_NSGetEnviron ()) 29*38fd1498Szrj # else 30*38fd1498Szrj # ifndef environ 31*38fd1498Szrj extern char **environ; 32*38fd1498Szrj # endif 33*38fd1498Szrj # endif 34*38fd1498Szrj # define HAVE_ENVIRON_DECL 35*38fd1498Szrj #endif 36