diff --git a/ncurses/trace/trace_xnames.c b/ncurses/trace/trace_xnames.c
new file mode 100644
index 0000000..9b0b592
--- /dev/null
+++ b/ncurses/trace/trace_xnames.c
@@ -0,0 +1,75 @@
+/****************************************************************************
+ * Copyright (c) 1999,2000 Free Software Foundation, Inc.                   *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *  Author: Thomas E. Dickey <dickey@clark.net> 1999                        *
+ ****************************************************************************/
+/*
+ *	trace_xnames.c - Tracing/Debugging buffers (TERMTYPE extended names)
+ */
+
+#include <curses.priv.h>
+#include <term_entry.h>
+
+MODULE_ID("$Id: trace_xnames.c,v 1.5 2000/12/10 03:02:45 tom Exp $")
+
+NCURSES_EXPORT(void)
+_nc_trace_xnames(TERMTYPE * tp GCC_UNUSED)
+{
+#ifdef TRACE
+#if NCURSES_XNAMES
+    int limit = tp->ext_Booleans + tp->ext_Numbers + tp->ext_Strings;
+    int n, m;
+    if (limit) {
+	int begin_num = tp->ext_Booleans;
+	int begin_str = tp->ext_Booleans + tp->ext_Numbers;
+
+	_tracef("extended names (%s) %d = %d+%d+%d of %d+%d+%d",
+		tp->term_names,
+		limit,
+		tp->ext_Booleans, tp->ext_Numbers, tp->ext_Strings,
+		tp->num_Booleans, tp->num_Numbers, tp->num_Strings);
+	for (n = 0; n < limit; n++) {
+	    if ((m = n - begin_str) >= 0) {
+		_tracef("[%d] %s = %s", n,
+			tp->ext_Names[n],
+			_nc_visbuf(tp->Strings[tp->num_Strings + m - tp->ext_Strings]));
+	    } else if ((m = n - begin_num) >= 0) {
+		_tracef("[%d] %s = %d (num)", n,
+			tp->ext_Names[n],
+			tp->Numbers[tp->num_Numbers + m - tp->ext_Numbers]);
+	    } else {
+		_tracef("[%d] %s = %d (bool)", n,
+			tp->ext_Names[n],
+			tp->Booleans[tp->num_Booleans + n - tp->ext_Booleans]);
+	    }
+	}
+    }
+#endif
+#endif
+}