(sys/types.h): Include to get size_t on some systems.

[gnulib.git] / lib / putenv.c

diff --git a/lib/putenv.c b/lib/putenv.c
index b39fb64..f1974d5 100644 (file)
--- a/lib/putenv.c
+++ b/lib/putenv.c
@@ -1,62 +1,66 @@
-/* Copyright (C) 1991, 1994 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1994, 1997, 1998 Free Software Foundation, Inc.
 
+   NOTE: The canonical source of this file is maintained with the GNU C
+   Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
 
-NOTE: The canonical source of this file is maintained with the GNU C Library.
-Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+   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 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.
 
-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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+   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.  */
 
 #include <errno.h>
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
+#if HAVE_CONFIG_H
+# include <config.h>
 #endif
 
-/* Define-away any (possibly conflicting) prototype of putenv.
-   Many systems omit the `const' attribute on the argument.  */
-#define putenv _sys_putenv
+/* Disable the definition of putenv to rpl_putenv (from config.h) in this
+   file.  Otherwise, we'd get conflicting prototypes for rpl_putenv on
+   systems like Irix 5.3.  */
+#undef putenv
+
+#include <sys/types.h>
 
 #if defined (__GNU_LIBRARY__) || defined (HAVE_STDLIB_H)
-#include <stdlib.h>
+# include <stdlib.h>
 #endif
 #if defined (__GNU_LIBRARY__) || defined (HAVE_STRING_H)
-#include <string.h>
+# include <string.h>
 #endif
 #if defined (__GNU_LIBRARY__) || defined (HAVE_UNISTD_H)
-#include <unistd.h>
+# include <unistd.h>
 #endif
 
-#undef putenv
-
 #if !defined (__GNU_LIBRARY__) && !defined (HAVE_STRCHR)
-#define strchr index
+# define strchr index
 #endif
 #if !defined (__GNU_LIBRARY__) && !defined (HAVE_MEMCPY)
-#define memcpy(d,s,n) bcopy ((s), (d), (n))
+# define memcpy(d,s,n) bcopy ((s), (d), (n))
 #endif
 
 #if HAVE_GNU_LD
-#define environ __environ
+# define environ __environ
 #else
 extern char **environ;
 #endif
 
+#ifndef NULL
+# define NULL 0
+#endif
+
 
 /* Put STRING, which is of the form "NAME=VALUE", in the environment.  */
 int
-putenv (string)
+rpl_putenv (string)
      const char *string;
 {
   const char *const name_end = strchr (string, '=');