diff --git a/ncurses/trace/trace_buf.c b/ncurses/trace/trace_buf.c
new file mode 100644
index 0000000..6345acc
--- /dev/null
+++ b/ncurses/trace/trace_buf.c
@@ -0,0 +1,114 @@
+/****************************************************************************
+ * Copyright (c) 1998-2007,2008 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                 1997-on                        *
+ ****************************************************************************/
+/*
+ *	trace_buf.c - Tracing/Debugging buffers (attributes)
+ */
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: trace_buf.c,v 1.14 2008/08/03 15:13:56 tom Exp $")
+
+#define MyList _nc_globals.tracebuf_ptr
+#define MySize _nc_globals.tracebuf_used
+
+static char *
+_nc_trace_alloc(int bufnum, size_t want)
+{
+    char *result = 0;
+
+    if (bufnum >= 0) {
+	if ((size_t) (bufnum + 1) > MySize) {
+	    size_t need = (bufnum + 1) * 2;
+	    if ((MyList = typeRealloc(TRACEBUF, need, MyList)) != 0) {
+		while (need > MySize)
+		    MyList[MySize++].text = 0;
+	    }
+	}
+
+	if (MyList != 0) {
+	    if (MyList[bufnum].text == 0
+		|| want > MyList[bufnum].size) {
+		MyList[bufnum].text = typeRealloc(char, want, MyList[bufnum].text);
+		if (MyList[bufnum].text != 0)
+		    MyList[bufnum].size = want;
+	    }
+	    result = MyList[bufnum].text;
+	}
+    }
+#if NO_LEAKS
+    else {
+	if (MySize) {
+	    if (MyList) {
+		while (MySize--) {
+		    if (MyList[MySize].text != 0) {
+			free(MyList[MySize].text);
+		    }
+		}
+		free(MyList);
+		MyList = 0;
+	    }
+	    MySize = 0;
+	}
+    }
+#endif
+    return result;
+}
+
+/*
+ * (re)Allocate a buffer big enough for the caller's wants.
+ */
+NCURSES_EXPORT(char *)
+_nc_trace_buf(int bufnum, size_t want)
+{
+    char *result = _nc_trace_alloc(bufnum, want);
+    if (result != 0)
+	*result = '\0';
+    return result;
+}
+
+/*
+ * Append a new string to an existing buffer.
+ */
+NCURSES_EXPORT(char *)
+_nc_trace_bufcat(int bufnum, const char *value)
+{
+    char *buffer = _nc_trace_alloc(bufnum, 0);
+    if (buffer != 0) {
+	size_t have = strlen(buffer);
+
+	buffer = _nc_trace_alloc(bufnum, 1 + have + strlen(value));
+	if (buffer != 0)
+	    (void) strcpy(buffer + have, value);
+
+    }
+    return buffer;
+}