Mercurial > hg > octave-lyh > gnulib-hg
changeset 4084:5248d7d55666
Rewritten to cope with systems that have setenv() but not unsetenv().
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 16 Dec 2002 15:47:55 +0000 |
parents | 99c6810f56fa |
children | fbbe1d39bfa3 |
files | lib/setenv.h |
diffstat | 1 files changed, 42 insertions(+), 13 deletions(-) [+] |
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--- a/lib/setenv.h +++ b/lib/setenv.h @@ -1,17 +1,46 @@ -#ifndef SETENV_H -# define SETENV_H 1 +/* Setting environment variables. + Copyright (C) 2001-2002 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if HAVE_SETENV || HAVE_UNSETENV + +/* Get setenv(), unsetenv() declarations. */ +#include <stdlib.h> -# undef __P -# if defined (__STDC__) && __STDC__ -# define __P(x) x -# else -# define __P(x) () -# endif +#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); -int - setenv __P ((const char *name, const char *value, int replace)); +#endif + +#if !HAVE_UNSETENV -void - unsetenv __P ((const char *name)); +/* Remove the variable NAME from the environment. */ +extern int unsetenv (const char *name); -#endif /* SETENV_H */ +#endif + +#ifdef __cplusplus +} +#endif