Small cleanups: remove an unused dependency to signal.h and include

output.h.

This commit was SVN r20155.

opal/util/stacktrace.c

@@ -37,6 +37,7 @@
 #include "opal/mca/base/mca_base_param.h"
 #include "opal/mca/backtrace/backtrace.h"
 #include "opal/constants.h"
+#include "opal/util/output.h"
 
 #ifndef _NSIG
 #define _NSIG 32

opal/util/stacktrace.h

@@ -2,7 +2,7 @@
  * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
  *                         University Research and Technology
  *                         Corporation.  All rights reserved.
- * Copyright (c) 2004-2005 The University of Tennessee and The University
+ * Copyright (c) 2004-2008 The University of Tennessee and The University
  *                         of Tennessee Research Foundation.  All rights
  *                         reserved.
  * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
@@ -24,10 +24,6 @@
 
 #include "opal_config.h"
 
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
-#endif
-
 /**
  * Output the current stack trace (not including the call to this
  * function) to the stream indicated.