/* Setting environment variables. Copyright (C) 2001-2004 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #if HAVE_SETENV || HAVE_UNSETENV /* Get setenv(), unsetenv() declarations. */ # include <stdlib.h> #endif #ifdef __cplusplus extern "C" { #endif #if !HAVE_SETENV /* Set NAME to VALUE in the environment. If REPLACE is nonzero, overwrite an existing value. */ extern int setenv (const char *name, const char *value, int replace); #endif #if HAVE_UNSETENV # if VOID_UNSETENV /* On some systems, unsetenv() returns void. This is the case for FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4. */ # define unsetenv(name) ((unsetenv)(name), 0) # endif #else /* Remove the variable NAME from the environment. */ extern int unsetenv (const char *name); #endif #ifdef __cplusplus } #endif