diff --git a/ncurses/tinfo/lib_acs.c b/ncurses/tinfo/lib_acs.c
index 69a1851..4ede53f 100644
--- a/ncurses/tinfo/lib_acs.c
+++ b/ncurses/tinfo/lib_acs.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc.              *
+ * Copyright 2018-2019,2020 Thomas E. Dickey                                *
+ * Copyright 1998-2014,2017 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            *
@@ -39,7 +40,7 @@
 #define CUR SP_TERMTYPE
 #endif
 
-MODULE_ID("$Id: lib_acs.c,v 1.45 2014/03/08 20:32:59 tom Exp $")
+MODULE_ID("$Id: lib_acs.c,v 1.50 2020/02/02 23:34:34 tom Exp $")
 
 #if BROKEN_LINKER || USE_REENTRANT
 #define MyBuffer _nc_prescreen.real_acs_map
@@ -171,7 +172,7 @@
     if (ena_acs != NULL) {
 	NCURSES_PUTP2("ena_acs", ena_acs);
     }
-#if NCURSES_EXT_FUNCS
+#if NCURSES_EXT_FUNCS && defined(enter_pc_charset_mode) && defined(exit_pc_charset_mode)
     /*
      * Linux console "supports" the "PC ROM" character set by the coincidence
      * that smpch/rmpch and smacs/rmacs have the same values.  ncurses has
@@ -205,8 +206,13 @@
 	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)
+		T(("#%d real_map[%s] = %s",
+		   (int) i,
+		   _tracechar(UChar(acs_chars[i])),
+		   _tracechtype(real_map[UChar(acs_chars[i])])));
+		if (SP != 0) {
 		    SP->_screen_acs_map[UChar(acs_chars[i])] = TRUE;
+		}
 	    }
 	    i += 2;
 	}
@@ -249,3 +255,72 @@
     NCURSES_SP_NAME(_nc_init_acs) (CURRENT_SCREEN);
 }
 #endif
+
+#if !NCURSES_WCWIDTH_GRAPHICS
+NCURSES_EXPORT(int)
+_nc_wacs_width(unsigned ch)
+{
+    int result;
+    switch (ch) {
+    case 0x00a3:		/* FALLTHRU - ncurses pound-sterling symbol */
+    case 0x00b0:		/* FALLTHRU - VT100 degree symbol */
+    case 0x00b1:		/* FALLTHRU - VT100 plus/minus */
+    case 0x00b7:		/* FALLTHRU - VT100 bullet */
+    case 0x03c0:		/* FALLTHRU - ncurses greek pi */
+    case 0x2190:		/* FALLTHRU - Teletype arrow pointing left */
+    case 0x2191:		/* FALLTHRU - Teletype arrow pointing up */
+    case 0x2192:		/* FALLTHRU - Teletype arrow pointing right */
+    case 0x2193:		/* FALLTHRU - Teletype arrow pointing down */
+    case 0x2260:		/* FALLTHRU - ncurses not-equal */
+    case 0x2264:		/* FALLTHRU - ncurses less-than-or-equal-to */
+    case 0x2265:		/* FALLTHRU - ncurses greater-than-or-equal-to */
+    case 0x23ba:		/* FALLTHRU - VT100 scan line 1 */
+    case 0x23bb:		/* FALLTHRU - ncurses scan line 3 */
+    case 0x23bc:		/* FALLTHRU - ncurses scan line 7 */
+    case 0x23bd:		/* FALLTHRU - VT100 scan line 9 */
+    case 0x2500:		/* FALLTHRU - VT100 horizontal line */
+    case 0x2501:		/* FALLTHRU - thick horizontal line */
+    case 0x2502:		/* FALLTHRU - VT100 vertical line */
+    case 0x2503:		/* FALLTHRU - thick vertical line */
+    case 0x250c:		/* FALLTHRU - VT100 upper left corner */
+    case 0x250f:		/* FALLTHRU - thick upper left corner */
+    case 0x2510:		/* FALLTHRU - VT100 upper right corner */
+    case 0x2513:		/* FALLTHRU - thick upper right corner */
+    case 0x2514:		/* FALLTHRU - VT100 lower left corner */
+    case 0x2517:		/* FALLTHRU - thick lower left corner */
+    case 0x2518:		/* FALLTHRU - VT100 lower right corner */
+    case 0x251b:		/* FALLTHRU - thick lower right corner */
+    case 0x251c:		/* FALLTHRU - VT100 tee pointing left */
+    case 0x2523:		/* FALLTHRU - thick tee pointing left */
+    case 0x2524:		/* FALLTHRU - VT100 tee pointing right */
+    case 0x252b:		/* FALLTHRU - thick tee pointing right */
+    case 0x252c:		/* FALLTHRU - VT100 tee pointing down */
+    case 0x2533:		/* FALLTHRU - thick tee pointing down */
+    case 0x2534:		/* FALLTHRU - VT100 tee pointing up */
+    case 0x253b:		/* FALLTHRU - thick tee pointing up */
+    case 0x253c:		/* FALLTHRU - VT100 large plus or crossover */
+    case 0x254b:		/* FALLTHRU - thick large plus or crossover */
+    case 0x2550:		/* FALLTHRU - double horizontal line */
+    case 0x2551:		/* FALLTHRU - double vertical line */
+    case 0x2554:		/* FALLTHRU - double upper left corner */
+    case 0x2557:		/* FALLTHRU - double upper right corner */
+    case 0x255a:		/* FALLTHRU - double lower left corner */
+    case 0x255d:		/* FALLTHRU - double lower right corner */
+    case 0x2560:		/* FALLTHRU - double tee pointing right */
+    case 0x2563:		/* FALLTHRU - double tee pointing left */
+    case 0x2566:		/* FALLTHRU - double tee pointing down */
+    case 0x2569:		/* FALLTHRU - double tee pointing up */
+    case 0x256c:		/* FALLTHRU - double large plus or crossover */
+    case 0x2592:		/* FALLTHRU - VT100 checker board (stipple) */
+    case 0x25ae:		/* FALLTHRU - Teletype solid square block */
+    case 0x25c6:		/* FALLTHRU - VT100 diamond */
+    case 0x2603:		/* FALLTHRU - Teletype lantern symbol */
+	result = 1;
+	break;
+    default:
+	result = wcwidth(ch);
+	break;
+    }
+    return result;
+}
+#endif /* !NCURSES_WCWIDTH_GRAPHICS */