--- ./nx-X11/programs/xterm/charproc.c.X.original	2015-02-13 14:03:44.800440409 +0100
+++ ./nx-X11/programs/xterm/charproc.c	2015-02-13 14:03:44.796440488 +0100
@@ -82,6 +82,23 @@
  * SOFTWARE.
  */
 
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NX-X11, NX protocol compression and NX extensions to this software     */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of Medialogic S.p.A.                   */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
 /* charproc.c */
 
 #include <version.h>
@@ -3177,6 +3194,13 @@
 	}
 	if (need_cleanup)
 	    Cleanup(0);
+
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST)
+    fprintf(stderr, "xterm::in_put: Select called with [%d][%p][%p][%p][%p].\n",
+                max_plus1, (void *) &select_mask, (void *) &write_mask, (void *) 0,
+                    (void *) (time_select ? &select_timeout : 0));
+#endif
+
 	i = Select(max_plus1, &select_mask, &write_mask, 0,
 		   (time_select ? &select_timeout : 0));
 	if (i < 0) {
