Fix broken compile.

This commit was SVN r23167.

orte/mca/ras/gridengine/ras_gridengine_module.c

@@ -9,7 +9,7 @@
  *                         University of Stuttgart.  All rights reserved.
  * Copyright (c) 2004-2005 The Regents of the University of California.
  *                         All rights reserved.
- * Copyright (c) 2006-2009 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright (c) 2006-2010 Oracle and/or its affiliates.  All rights reserved
  * $COPYRIGHT$
  * 
  * Additional copyrights may follow
@@ -28,6 +28,7 @@
 #include <string.h>
 
 #include "opal/util/output.h"
+#include "opal/util/opal_sos.h"
 #include "orte/util/show_help.h"
 #include "orte/mca/errmgr/errmgr.h"
 #include "orte/runtime/orte_globals.h"