diff --git a/ncurses/tty/hashmap.c b/ncurses/tty/hashmap.c
index 9b60df6..8c0fdfd 100644
--- a/ncurses/tty/hashmap.c
+++ b/ncurses/tty/hashmap.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.                   *
+ * Copyright (c) 1998-2014,2015 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            *
@@ -68,40 +68,47 @@
 *****************************************************************************/
 
 #include <curses.priv.h>
-#include <term.h>		/* for back_color_erase */
 
-MODULE_ID("$Id: hashmap.c,v 1.56 2007/10/13 18:47:25 Miroslav.Lichvar Exp $")
+#ifndef CUR
+#define CUR SP_TERMTYPE
+#endif
+
+MODULE_ID("$Id: hashmap.c,v 1.65 2015/07/25 20:13:56 tom Exp $")
 
 #ifdef HASHDEBUG
 
 # define _tracef	printf
 # undef TR
+# ifdef TRACE
 # define TR(n, a)	if (_nc_tracing & (n)) { _tracef a ; putchar('\n'); }
+# else
+# define TR(n, a)	{ _tracef a ; putchar('\n'); }
+# endif
 # undef screen_lines
-# define screen_lines MAXLINES
-# define TEXTWIDTH	1
+# define screen_lines(sp) MAXLINES
+# define TEXTWIDTH(sp)	1
 int oldnums[MAXLINES], reallines[MAXLINES];
-static NCURSES_CH_T oldtext[MAXLINES][TEXTWIDTH];
-static NCURSES_CH_T newtext[MAXLINES][TEXTWIDTH];
-# define OLDNUM(n)	oldnums[n]
-# define OLDTEXT(n)	oldtext[n]
-# define NEWTEXT(m)	newtext[m]
-# define PENDING(n)     1
+static NCURSES_CH_T oldtext[MAXLINES][TEXTWIDTH(sp)];
+static NCURSES_CH_T newtext[MAXLINES][TEXTWIDTH(sp)];
+# define OLDNUM(sp,n)	oldnums[n]
+# define OLDTEXT(sp,n)	oldtext[n]
+# define NEWTEXT(sp,m)	newtext[m]
+# define PENDING(sp,n)  1
 
 #else /* !HASHDEBUG */
 
-# define OLDNUM(n)	SP->_oldnum_list[n]
-# define OLDTEXT(n)	curscr->_line[n].text
-# define NEWTEXT(m)	newscr->_line[m].text
-# define TEXTWIDTH	(curscr->_maxx+1)
-# define PENDING(n)     (newscr->_line[n].firstchar != _NOCHANGE)
+# define OLDNUM(sp,n)	(sp)->_oldnum_list[n]
+# define OLDTEXT(sp,n)	CurScreen(sp)->_line[n].text
+# define NEWTEXT(sp,m)	NewScreen(sp)->_line[m].text
+# define TEXTWIDTH(sp)	(CurScreen(sp)->_maxx + 1)
+# define PENDING(sp,n)  (NewScreen(sp)->_line[n].firstchar != _NOCHANGE)
 
 #endif /* !HASHDEBUG */
 
-#define oldhash		(SP->oldhash)
-#define newhash		(SP->newhash)
-#define hashtab		(SP->hashtab)
-#define lines_alloc	(SP->hashtab_len)
+#define oldhash(sp)	((sp)->oldhash)
+#define newhash(sp)	((sp)->newhash)
+#define hashtab(sp)	((sp)->hashtab)
+#define lines_alloc(sp)	((sp)->hashtab_len)
 
 #if USE_WIDEC_SUPPORT
 #define HASH_VAL(ch) (ch.chars[0])
@@ -112,26 +119,29 @@
 static const NCURSES_CH_T blankchar = NewChar(BLANK_TEXT);
 
 static NCURSES_INLINE unsigned long
-hash(NCURSES_CH_T * text)
+hash(SCREEN *sp, NCURSES_CH_T * text)
 {
     int i;
     NCURSES_CH_T ch;
     unsigned long result = 0;
-    for (i = TEXTWIDTH; i > 0; i--) {
+    (void) sp;
+
+    for (i = TEXTWIDTH(sp); i > 0; i--) {
 	ch = *text++;
-	result += (result << 5) + HASH_VAL(ch);
+	result += (result << 5) + (unsigned long) HASH_VAL(ch);
     }
     return result;
 }
 
 /* approximate update cost */
 static int
-update_cost(NCURSES_CH_T * from, NCURSES_CH_T * to)
+update_cost(SCREEN *sp, NCURSES_CH_T * from, NCURSES_CH_T * to)
 {
     int cost = 0;
     int i;
+    (void) sp;
 
-    for (i = TEXTWIDTH; i > 0; i--, from++, to++)
+    for (i = TEXTWIDTH(sp); i > 0; i--, from++, to++)
 	if (!(CharEq(*from, *to)))
 	    cost++;
 
@@ -139,16 +149,17 @@
 }
 
 static int
-update_cost_from_blank(NCURSES_CH_T * to)
+update_cost_from_blank(SCREEN *sp, NCURSES_CH_T * to)
 {
     int cost = 0;
     int i;
     NCURSES_CH_T blank = blankchar;
+    (void) sp;
 
     if (back_color_erase)
 	SetPair(blank, GetPair(stdscr->_nc_bkgd));
 
-    for (i = TEXTWIDTH; i > 0; i--, to++)
+    for (i = TEXTWIDTH(sp); i > 0; i--, to++)
 	if (!(CharEq(blank, *to)))
 	    cost++;
 
@@ -160,14 +171,14 @@
  * effective. 'blank' indicates whether the line 'to' would become blank.
  */
 static NCURSES_INLINE bool
-cost_effective(const int from, const int to, const bool blank)
+cost_effective(SCREEN *sp, const int from, const int to, const int blank)
 {
     int new_from;
 
     if (from == to)
 	return FALSE;
 
-    new_from = OLDNUM(from);
+    new_from = OLDNUM(sp, from);
     if (new_from == _NEWINDEX)
 	new_from = from;
 
@@ -175,16 +186,17 @@
      * On the left side of >= is the cost before moving;
      * on the right side -- cost after moving.
      */
-    return (((blank ? update_cost_from_blank(NEWTEXT(to))
-	      : update_cost(OLDTEXT(to), NEWTEXT(to)))
-	     + update_cost(OLDTEXT(new_from), NEWTEXT(from)))
-	    >= ((new_from == from ? update_cost_from_blank(NEWTEXT(from))
-		 : update_cost(OLDTEXT(new_from), NEWTEXT(from)))
-		+ update_cost(OLDTEXT(from), NEWTEXT(to)))) ? TRUE : FALSE;
+    return (((blank ? update_cost_from_blank(sp, NEWTEXT(sp, to))
+	      : update_cost(sp, OLDTEXT(sp, to), NEWTEXT(sp, to)))
+	     + update_cost(sp, OLDTEXT(sp, new_from), NEWTEXT(sp, from)))
+	    >= ((new_from == from ? update_cost_from_blank(sp, NEWTEXT(sp, from))
+		 : update_cost(sp, OLDTEXT(sp, new_from), NEWTEXT(sp, from)))
+		+ update_cost(sp, OLDTEXT(sp, from), NEWTEXT(sp, to))))
+	? TRUE : FALSE;
 }
 
 static void
-grow_hunks(void)
+grow_hunks(SCREEN *sp)
 {
     int start, end, shift;
     int back_limit, forward_limit;	/* limits for cells to fill */
@@ -200,35 +212,36 @@
     back_ref_limit = 0;
 
     i = 0;
-    while (i < screen_lines && OLDNUM(i) == _NEWINDEX)
+    while (i < screen_lines(sp) && OLDNUM(sp, i) == _NEWINDEX)
 	i++;
-    for (; i < screen_lines; i = next_hunk) {
+    for (; i < screen_lines(sp); i = next_hunk) {
 	start = i;
-	shift = OLDNUM(i) - i;
+	shift = OLDNUM(sp, i) - i;
 
 	/* get forward limit */
 	i = start + 1;
-	while (i < screen_lines && OLDNUM(i) != _NEWINDEX && OLDNUM(i) - i
-	       == shift)
+	while (i < screen_lines(sp)
+	       && OLDNUM(sp, i) != _NEWINDEX
+	       && OLDNUM(sp, i) - i == shift)
 	    i++;
 	end = i;
-	while (i < screen_lines && OLDNUM(i) == _NEWINDEX)
+	while (i < screen_lines(sp) && OLDNUM(sp, i) == _NEWINDEX)
 	    i++;
 	next_hunk = i;
 	forward_limit = i;
-	if (i >= screen_lines || OLDNUM(i) >= i)
+	if (i >= screen_lines(sp) || OLDNUM(sp, i) >= i)
 	    forward_ref_limit = i;
 	else
-	    forward_ref_limit = OLDNUM(i);
+	    forward_ref_limit = OLDNUM(sp, i);
 
 	i = start - 1;
 	/* grow back */
 	if (shift < 0)
 	    back_limit = back_ref_limit + (-shift);
 	while (i >= back_limit) {
-	    if (newhash[i] == oldhash[i + shift]
-		|| cost_effective(i + shift, i, shift < 0)) {
-		OLDNUM(i) = i + shift;
+	    if (newhash(sp)[i] == oldhash(sp)[i + shift]
+		|| cost_effective(sp, i + shift, i, shift < 0)) {
+		OLDNUM(sp, i) = i + shift;
 		TR(TRACE_UPDATE | TRACE_MOVE,
 		   ("connected new line %d to old line %d (backward continuation)",
 		    i, i + shift));
@@ -246,9 +259,9 @@
 	if (shift > 0)
 	    forward_limit = forward_ref_limit - shift;
 	while (i < forward_limit) {
-	    if (newhash[i] == oldhash[i + shift]
-		|| cost_effective(i + shift, i, shift > 0)) {
-		OLDNUM(i) = i + shift;
+	    if (newhash(sp)[i] == oldhash(sp)[i + shift]
+		|| cost_effective(sp, i + shift, i, shift > 0)) {
+		OLDNUM(sp, i) = i + shift;
 		TR(TRACE_UPDATE | TRACE_MOVE,
 		   ("connected new line %d to old line %d (forward continuation)",
 		    i, i + shift));
@@ -268,51 +281,54 @@
 }
 
 NCURSES_EXPORT(void)
-_nc_hash_map(void)
+NCURSES_SP_NAME(_nc_hash_map) (NCURSES_SP_DCL0)
 {
-    HASHMAP *sp;
+    HASHMAP *hsp;
     register int i;
     int start, shift, size;
 
-    if (screen_lines > lines_alloc) {
-	if (hashtab)
-	    free(hashtab);
-	hashtab = typeMalloc(HASHMAP, (screen_lines + 1) * 2);
-	if (!hashtab) {
-	    if (oldhash) {
-		FreeAndNull(oldhash);
+    if (screen_lines(SP_PARM) > lines_alloc(SP_PARM)) {
+	if (hashtab(SP_PARM))
+	    free(hashtab(SP_PARM));
+	hashtab(SP_PARM) = typeMalloc(HASHMAP,
+				      ((size_t) screen_lines(SP_PARM) + 1) * 2);
+	if (!hashtab(SP_PARM)) {
+	    if (oldhash(SP_PARM)) {
+		FreeAndNull(oldhash(SP_PARM));
 	    }
-	    lines_alloc = 0;
+	    lines_alloc(SP_PARM) = 0;
 	    return;
 	}
-	lines_alloc = screen_lines;
+	lines_alloc(SP_PARM) = screen_lines(SP_PARM);
     }
 
-    if (oldhash && newhash) {
+    if (oldhash(SP_PARM) && newhash(SP_PARM)) {
 	/* re-hash only changed lines */
-	for (i = 0; i < screen_lines; i++) {
-	    if (PENDING(i))
-		newhash[i] = hash(NEWTEXT(i));
+	for (i = 0; i < screen_lines(SP_PARM); i++) {
+	    if (PENDING(SP_PARM, i))
+		newhash(SP_PARM)[i] = hash(SP_PARM, NEWTEXT(SP_PARM, i));
 	}
     } else {
 	/* re-hash all */
-	if (oldhash == 0)
-	    oldhash = typeCalloc(unsigned long, (unsigned) screen_lines);
-	if (newhash == 0)
-	    newhash = typeCalloc(unsigned long, (unsigned) screen_lines);
-	if (!oldhash || !newhash)
+	if (oldhash(SP_PARM) == 0)
+	    oldhash(SP_PARM) = typeCalloc(unsigned long,
+					    (size_t) screen_lines(SP_PARM));
+	if (newhash(SP_PARM) == 0)
+	    newhash(SP_PARM) = typeCalloc(unsigned long,
+					    (size_t) screen_lines(SP_PARM));
+	if (!oldhash(SP_PARM) || !newhash(SP_PARM))
 	    return;		/* malloc failure */
-	for (i = 0; i < screen_lines; i++) {
-	    newhash[i] = hash(NEWTEXT(i));
-	    oldhash[i] = hash(OLDTEXT(i));
+	for (i = 0; i < screen_lines(SP_PARM); i++) {
+	    newhash(SP_PARM)[i] = hash(SP_PARM, NEWTEXT(SP_PARM, i));
+	    oldhash(SP_PARM)[i] = hash(SP_PARM, OLDTEXT(SP_PARM, i));
 	}
     }
 
 #ifdef HASH_VERIFY
-    for (i = 0; i < screen_lines; i++) {
-	if (newhash[i] != hash(NEWTEXT(i)))
+    for (i = 0; i < screen_lines(SP_PARM); i++) {
+	if (newhash(SP_PARM)[i] != hash(SP_PARM, NEWTEXT(SP_PARM, i)))
 	    fprintf(stderr, "error in newhash[%d]\n", i);
-	if (oldhash[i] != hash(OLDTEXT(i)))
+	if (oldhash(SP_PARM)[i] != hash(SP_PARM, OLDTEXT(SP_PARM, i)))
 	    fprintf(stderr, "error in oldhash[%d]\n", i);
     }
 #endif
@@ -320,28 +336,30 @@
     /*
      * Set up and count line-hash values.
      */
-    memset(hashtab, '\0', sizeof(*hashtab) * (screen_lines + 1) * 2);
-    for (i = 0; i < screen_lines; i++) {
-	unsigned long hashval = oldhash[i];
+    memset(hashtab(SP_PARM), '\0',
+	   sizeof(*(hashtab(SP_PARM)))
+	   * ((size_t) screen_lines(SP_PARM) + 1) * 2);
+    for (i = 0; i < screen_lines(SP_PARM); i++) {
+	unsigned long hashval = oldhash(SP_PARM)[i];
 
-	for (sp = hashtab; sp->hashval; sp++)
-	    if (sp->hashval == hashval)
+	for (hsp = hashtab(SP_PARM); hsp->hashval; hsp++)
+	    if (hsp->hashval == hashval)
 		break;
-	sp->hashval = hashval;	/* in case this is a new entry */
-	sp->oldcount++;
-	sp->oldindex = i;
+	hsp->hashval = hashval;	/* in case this is a new entry */
+	hsp->oldcount++;
+	hsp->oldindex = i;
     }
-    for (i = 0; i < screen_lines; i++) {
-	unsigned long hashval = newhash[i];
+    for (i = 0; i < screen_lines(SP_PARM); i++) {
+	unsigned long hashval = newhash(SP_PARM)[i];
 
-	for (sp = hashtab; sp->hashval; sp++)
-	    if (sp->hashval == hashval)
+	for (hsp = hashtab(SP_PARM); hsp->hashval; hsp++)
+	    if (hsp->hashval == hashval)
 		break;
-	sp->hashval = hashval;	/* in case this is a new entry */
-	sp->newcount++;
-	sp->newindex = i;
+	hsp->hashval = hashval;	/* in case this is a new entry */
+	hsp->newcount++;
+	hsp->newindex = i;
 
-	OLDNUM(i) = _NEWINDEX;	/* initialize old indices array */
+	OLDNUM(SP_PARM, i) = _NEWINDEX;		/* initialize old indices array */
     }
 
     /*
@@ -351,16 +369,16 @@
      * extending hunks by cost_effective. Otherwise, it does not
      * have any side effects.
      */
-    for (sp = hashtab; sp->hashval; sp++)
-	if (sp->oldcount == 1 && sp->newcount == 1
-	    && sp->oldindex != sp->newindex) {
+    for (hsp = hashtab(SP_PARM); hsp->hashval; hsp++)
+	if (hsp->oldcount == 1 && hsp->newcount == 1
+	    && hsp->oldindex != hsp->newindex) {
 	    TR(TRACE_UPDATE | TRACE_MOVE,
 	       ("new line %d is hash-identical to old line %d (unique)",
-		sp->newindex, sp->oldindex));
-	    OLDNUM(sp->newindex) = sp->oldindex;
+		hsp->newindex, hsp->oldindex));
+	    OLDNUM(SP_PARM, hsp->newindex) = hsp->oldindex;
 	}
 
-    grow_hunks();
+    grow_hunks(SP_PARM);
 
     /*
      * Eliminate bad or impossible shifts -- this includes removing
@@ -368,58 +386,83 @@
      * those which are to be moved too far, they are likely to destroy
      * more than carry.
      */
-    for (i = 0; i < screen_lines;) {
-	while (i < screen_lines && OLDNUM(i) == _NEWINDEX)
+    for (i = 0; i < screen_lines(SP_PARM);) {
+	while (i < screen_lines(SP_PARM) && OLDNUM(SP_PARM, i) == _NEWINDEX)
 	    i++;
-	if (i >= screen_lines)
+	if (i >= screen_lines(SP_PARM))
 	    break;
 	start = i;
-	shift = OLDNUM(i) - i;
+	shift = OLDNUM(SP_PARM, i) - i;
 	i++;
-	while (i < screen_lines && OLDNUM(i) != _NEWINDEX && OLDNUM(i) - i
-	       == shift)
+	while (i < screen_lines(SP_PARM)
+	       && OLDNUM(SP_PARM, i) != _NEWINDEX
+	       && OLDNUM(SP_PARM, i) - i == shift)
 	    i++;
 	size = i - start;
 	if (size < 3 || size + min(size / 8, 2) < abs(shift)) {
 	    while (start < i) {
-		OLDNUM(start) = _NEWINDEX;
+		OLDNUM(SP_PARM, start) = _NEWINDEX;
 		start++;
 	    }
 	}
     }
 
     /* After clearing invalid hunks, try grow the rest. */
-    grow_hunks();
+    grow_hunks(SP_PARM);
 }
 
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(void)
+_nc_hash_map(void)
+{
+    NCURSES_SP_NAME(_nc_hash_map) (CURRENT_SCREEN);
+}
+#endif
+
+NCURSES_EXPORT(void)
+NCURSES_SP_NAME(_nc_make_oldhash) (NCURSES_SP_DCLx int i)
+{
+    if (oldhash(SP_PARM))
+	oldhash(SP_PARM)[i] = hash(SP_PARM, OLDTEXT(SP_PARM, i));
+}
+
+#if NCURSES_SP_FUNCS
 NCURSES_EXPORT(void)
 _nc_make_oldhash(int i)
 {
-    if (oldhash)
-	oldhash[i] = hash(OLDTEXT(i));
+    NCURSES_SP_NAME(_nc_make_oldhash) (CURRENT_SCREEN, i);
 }
+#endif
 
 NCURSES_EXPORT(void)
-_nc_scroll_oldhash(int n, int top, int bot)
+NCURSES_SP_NAME(_nc_scroll_oldhash) (NCURSES_SP_DCLx int n, int top, int bot)
 {
     size_t size;
     int i;
 
-    if (!oldhash)
+    if (!oldhash(SP_PARM))
 	return;
 
-    size = sizeof(*oldhash) * (bot - top + 1 - abs(n));
+    size = sizeof(*(oldhash(SP_PARM))) * (size_t) (bot - top + 1 - abs(n));
     if (n > 0) {
-	memmove(oldhash + top, oldhash + top + n, size);
+	memmove(oldhash(SP_PARM) + top, oldhash(SP_PARM) + top + n, size);
 	for (i = bot; i > bot - n; i--)
-	    oldhash[i] = hash(OLDTEXT(i));
+	    oldhash(SP_PARM)[i] = hash(SP_PARM, OLDTEXT(SP_PARM, i));
     } else {
-	memmove(oldhash + top - n, oldhash + top, size);
+	memmove(oldhash(SP_PARM) + top - n, oldhash(SP_PARM) + top, size);
 	for (i = top; i < top - n; i++)
-	    oldhash[i] = hash(OLDTEXT(i));
+	    oldhash(SP_PARM)[i] = hash(SP_PARM, OLDTEXT(SP_PARM, i));
     }
 }
 
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(void)
+_nc_scroll_oldhash(int n, int top, int bot)
+{
+    NCURSES_SP_NAME(_nc_scroll_oldhash) (CURRENT_SCREEN, n, top, bot);
+}
+#endif
+
 #ifdef HASHDEBUG
 static void
 usage(void)
@@ -451,13 +494,13 @@
 	return EXIT_FAILURE;
     (void) _nc_alloc_screen();
 
-    for (n = 0; n < screen_lines; n++) {
+    for (n = 0; n < screen_lines(sp); n++) {
 	reallines[n] = n;
 	oldnums[n] = _NEWINDEX;
 	CharOf(oldtext[n][0]) = CharOf(newtext[n][0]) = '.';
     }
 
-    if (isatty(fileno(stdin)))
+    if (NC_ISATTY(fileno(stdin)))
 	usage();
 
 #ifdef TRACE
@@ -474,7 +517,7 @@
 	    break;
 
 	case 'l':		/* get initial line number vector */
-	    for (n = 0; n < screen_lines; n++) {
+	    for (n = 0; n < screen_lines(sp); n++) {
 		reallines[n] = n;
 		oldnums[n] = _NEWINDEX;
 	    }
@@ -487,9 +530,9 @@
 	    break;
 
 	case 'n':		/* use following letters as text of new lines */
-	    for (n = 0; n < screen_lines; n++)
+	    for (n = 0; n < screen_lines(sp); n++)
 		CharOf(newtext[n][0]) = '.';
-	    for (n = 0; n < screen_lines; n++)
+	    for (n = 0; n < screen_lines(sp); n++)
 		if (line[n + 1] == '\n')
 		    break;
 		else
@@ -497,9 +540,9 @@
 	    break;
 
 	case 'o':		/* use following letters as text of old lines */
-	    for (n = 0; n < screen_lines; n++)
+	    for (n = 0; n < screen_lines(sp); n++)
 		CharOf(oldtext[n][0]) = '.';
-	    for (n = 0; n < screen_lines; n++)
+	    for (n = 0; n < screen_lines(sp); n++)
 		if (line[n + 1] == '\n')
 		    break;
 		else
@@ -511,12 +554,12 @@
 	    _nc_linedump();
 #endif
 	    (void) fputs("Old lines: [", stdout);
-	    for (n = 0; n < screen_lines; n++)
+	    for (n = 0; n < screen_lines(sp); n++)
 		putchar(CharOf(oldtext[n][0]));
 	    putchar(']');
 	    putchar('\n');
 	    (void) fputs("New lines: [", stdout);
-	    for (n = 0; n < screen_lines; n++)
+	    for (n = 0; n < screen_lines(sp); n++)
 		putchar(CharOf(newtext[n][0]));
 	    putchar(']');
 	    putchar('\n');