-/* Copyright (C) 1991, 1994, 1997 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.
systems like Irix 5.3. */
#undef putenv
+#include <sys/types.h>
+
#if defined (__GNU_LIBRARY__) || defined (HAVE_STDLIB_H)
# include <stdlib.h>
#endif
extern char **environ;
#endif
+#ifndef NULL
+# define NULL 0
+#endif
+
/* Put STRING, which is of the form "NAME=VALUE", in the environment. */
int