-# setenv.m4 serial 15
-dnl Copyright (C) 2001-2004, 2006-2009 Free Software Foundation, Inc.
+# setenv.m4 serial 16
+dnl Copyright (C) 2001-2004, 2006-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
[AC_RUN_IFELSE([AC_LANG_PROGRAM([[
#include <stdlib.h>
#include <errno.h>
+ #include <string.h>
]], [[
if (setenv ("", "", 0) != -1) return 1;
if (errno != EINVAL) return 2;