diff --git a/ncurses/tinfo/lib_acs.c b/ncurses/tinfo/lib_acs.c
new file mode 100644
index 0000000..919e472
--- /dev/null
+++ b/ncurses/tinfo/lib_acs.c
@@ -0,0 +1,194 @@
+/****************************************************************************
+ * 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
+ *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
+ *     and: Thomas E. Dickey                        1996-on                 *
+ ****************************************************************************/
+
+#include <curses.priv.h>
+#include <term.h>		/* ena_acs, acs_chars */
+
+MODULE_ID("$Id: lib_acs.c,v 1.36 2008/08/16 19:22:55 tom Exp $")
+
+#if BROKEN_LINKER || USE_REENTRANT
+#define MyBuffer _nc_prescreen.real_acs_map
+NCURSES_EXPORT_VAR(chtype *)
+_nc_acs_map(void)
+{
+    if (MyBuffer == 0)
+	MyBuffer = typeCalloc(chtype, ACS_LEN);
+    return MyBuffer;
+}
+#undef MyBuffer
+#else
+NCURSES_EXPORT_VAR(chtype) acs_map[ACS_LEN] =
+{
+    0
+};
+#endif
+
+NCURSES_EXPORT(void)
+_nc_init_acs(void)
+{
+    chtype *fake_map = acs_map;
+    chtype *real_map = SP != 0 ? SP->_acs_map : fake_map;
+    int j;
+
+    T(("initializing ACS map"));
+
+    /*
+     * If we're using this from curses (rather than terminfo), we are storing
+     * the mapping information in the SCREEN struct so we can decide how to
+     * render it.
+     */
+    if (real_map != fake_map) {
+	for (j = 1; j < ACS_LEN; ++j) {
+	    real_map[j] = 0;
+	    fake_map[j] = A_ALTCHARSET | j;
+	    if (SP)
+		SP->_screen_acs_map[j] = FALSE;
+	}
+    } else {
+	for (j = 1; j < ACS_LEN; ++j) {
+	    real_map[j] = 0;
+	}
+    }
+
+    /*
+     * Initializations for a UNIX-like multi-terminal environment.  Use
+     * ASCII chars and count on the terminfo description to do better.
+     */
+    real_map['l'] = '+';	/* should be upper left corner */
+    real_map['m'] = '+';	/* should be lower left corner */
+    real_map['k'] = '+';	/* should be upper right corner */
+    real_map['j'] = '+';	/* should be lower right corner */
+    real_map['u'] = '+';	/* should be tee pointing left */
+    real_map['t'] = '+';	/* should be tee pointing right */
+    real_map['v'] = '+';	/* should be tee pointing up */
+    real_map['w'] = '+';	/* should be tee pointing down */
+    real_map['q'] = '-';	/* should be horizontal line */
+    real_map['x'] = '|';	/* should be vertical line */
+    real_map['n'] = '+';	/* should be large plus or crossover */
+    real_map['o'] = '~';	/* should be scan line 1 */
+    real_map['s'] = '_';	/* should be scan line 9 */
+    real_map['`'] = '+';	/* should be diamond */
+    real_map['a'] = ':';	/* should be checker board (stipple) */
+    real_map['f'] = '\'';	/* should be degree symbol */
+    real_map['g'] = '#';	/* should be plus/minus */
+    real_map['~'] = 'o';	/* should be bullet */
+    real_map[','] = '<';	/* should be arrow pointing left */
+    real_map['+'] = '>';	/* should be arrow pointing right */
+    real_map['.'] = 'v';	/* should be arrow pointing down */
+    real_map['-'] = '^';	/* should be arrow pointing up */
+    real_map['h'] = '#';	/* should be board of squares */
+    real_map['i'] = '#';	/* should be lantern symbol */
+    real_map['0'] = '#';	/* should be solid square block */
+    /* these defaults were invented for ncurses */
+    real_map['p'] = '-';	/* should be scan line 3 */
+    real_map['r'] = '-';	/* should be scan line 7 */
+    real_map['y'] = '<';	/* should be less-than-or-equal-to */
+    real_map['z'] = '>';	/* should be greater-than-or-equal-to */
+    real_map['{'] = '*';	/* should be greek pi */
+    real_map['|'] = '!';	/* should be not-equal */
+    real_map['}'] = 'f';	/* should be pound-sterling symbol */
+
+    if (ena_acs != NULL) {
+	TPUTS_TRACE("ena_acs");
+	putp(ena_acs);
+    }
+#if NCURSES_EXT_FUNCS
+    /*
+     * Linux console "supports" the "PC ROM" character set by the coincidence
+     * that smpch/rmpch and smacs/rmacs have the same values.  ncurses has
+     * no codepage support (see SCO Merge for an example).  Outside of the
+     * values defined in acsc, there are no definitions for the "PC ROM"
+     * character set (assumed by some applications to be codepage 437), but we
+     * allow those applications to use those codepoints.
+     *
+     * test/blue.c uses this feature.
+     */
+#define PCH_KLUDGE(a,b) (a != 0 && b != 0 && !strcmp(a,b))
+    if (PCH_KLUDGE(enter_pc_charset_mode, enter_alt_charset_mode) &&
+	PCH_KLUDGE(exit_pc_charset_mode, exit_alt_charset_mode)) {
+	size_t i;
+	for (i = 1; i < ACS_LEN; ++i) {
+	    if (real_map[i] == 0) {
+		real_map[i] = i;
+		if (real_map != fake_map) {
+		    if (SP != 0)
+			SP->_screen_acs_map[i] = TRUE;
+		}
+	    }
+	}
+    }
+#endif
+
+    if (acs_chars != NULL) {
+	size_t i = 0;
+	size_t length = strlen(acs_chars);
+
+	while (i + 1 < length) {
+	    if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) {
+		real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET;
+		if (SP != 0)
+		    SP->_screen_acs_map[UChar(acs_chars[i])] = TRUE;
+	    }
+	    i += 2;
+	}
+    }
+#ifdef TRACE
+    /* Show the equivalent mapping, noting if it does not match the
+     * given attribute, whether by re-ordering or duplication.
+     */
+    if (USE_TRACEF(TRACE_CALLS)) {
+	size_t n, m;
+	char show[ACS_LEN * 2 + 1];
+	for (n = 1, m = 0; n < ACS_LEN; n++) {
+	    if (real_map[n] != 0) {
+		show[m++] = (char) n;
+		show[m++] = (char) ChCharOf(real_map[n]);
+	    }
+	}
+	show[m] = 0;
+	if (acs_chars == NULL || strcmp(acs_chars, show))
+	    _tracef("%s acs_chars %s",
+		    (acs_chars == NULL) ? "NULL" : "READ",
+		    _nc_visbuf(acs_chars));
+	_tracef("%s acs_chars %s",
+		(acs_chars == NULL)
+		? "NULL"
+		: (strcmp(acs_chars, show)
+		   ? "DIFF"
+		   : "SAME"),
+		_nc_visbuf(show));
+	_nc_unlock_global(tracef);
+    }
+#endif /* TRACE */
+}