Segfault for uninitialized trend avoided

xtt/lib/xtt/gtk/xtt_trend_gtk.cpp

 /* 
- * Proview   $Id: xtt_trend_gtk.cpp,v 1.1 2007-01-04 08:29:32 claes Exp $
+ * Proview   $Id: xtt_trend_gtk.cpp,v 1.2 2007-11-01 15:36:05 claes Exp $
  * Copyright (C) 2005 SSAB Oxelsund AB.
  *
  * This program is free software; you can redistribute it and/or 
@@ -52,6 +52,8 @@ XttTrendGtk::XttTrendGtk( void *parent_ctx,
 			  int *sts) :
   XttTrend( parent_ctx, name, trend_list, plotgroup, sts), parent_widget(parent_wid)
 {
+  if ( EVEN(*sts))
+    return;
   *sts = XNAV__SUCCESS;
 
   curve = new GeCurveGtk( this, parent_widget, name, NULL, gcd, 1);

xtt/lib/xtt/motif/xtt_trend_motif.cpp

 /* 
- * Proview   $Id: xtt_trend_motif.cpp,v 1.1 2007-01-04 08:30:03 claes Exp $
+ * Proview   $Id: xtt_trend_motif.cpp,v 1.2 2007-11-01 15:36:05 claes Exp $
  * Copyright (C) 2005 SSAB Oxelsund AB.
  *
  * This program is free software; you can redistribute it and/or 
@@ -67,6 +67,8 @@ XttTrendMotif::XttTrendMotif( void *parent_ctx,
 			      int *sts) :
   XttTrend( parent_ctx, name, trend_list, plotgroup, sts), parent_widget(parent_wid)
 {
+  if ( EVEN(*sts))
+    return;
   *sts = XNAV__SUCCESS;
 
   curve = new GeCurveMotif( this, parent_widget, name, NULL, gcd, 1);