diff --git a/ncurses/base/lib_erase.c b/ncurses/base/lib_erase.c
new file mode 100644
index 0000000..2566e8b
--- /dev/null
+++ b/ncurses/base/lib_erase.c
@@ -0,0 +1,92 @@
+/****************************************************************************
+ * Copyright (c) 1998,2000,2001 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
+ *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
+ *     and: Thomas E. Dickey                        1996-on                 *
+ ****************************************************************************/
+
+/*
+**	lib_erase.c
+**
+**	The routine werase().
+**
+*/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: lib_erase.c,v 1.16 2005/10/30 00:36:36 tom Exp $")
+
+NCURSES_EXPORT(int)
+werase(WINDOW *win)
+{
+    int code = ERR;
+    int y;
+    NCURSES_CH_T blank;
+    NCURSES_CH_T *sp, *end, *start;
+
+    T((T_CALLED("werase(%p)"), win));
+
+    if (win) {
+	blank = win->_nc_bkgd;
+	for (y = 0; y <= win->_maxy; y++) {
+	    start = win->_line[y].text;
+	    end = &start[win->_maxx];
+
+	    /*
+	     * If this is a derived window, we have to handle the case where
+	     * a multicolumn character extends into the window that we are
+	     * erasing.
+	     */
+	    if_WIDEC({
+		if (isWidecExt(start[0])) {
+		    int x = (win->_parent != 0) ? (win->_begx) : 0;
+		    while (x-- > 0) {
+			if (isWidecBase(start[-1])) {
+			    --start;
+			    break;
+			}
+			--start;
+		    }
+		}
+	    });
+
+	    for (sp = start; sp <= end; sp++)
+		*sp = blank;
+
+	    win->_line[y].firstchar = 0;
+	    win->_line[y].lastchar = win->_maxx;
+	}
+	win->_curx = win->_cury = 0;
+	win->_flags &= ~_WRAPPED;
+	_nc_synchook(win);
+	code = OK;
+    }
+    returnCode(code);
+}