kconfig: new configuration interface (nconfig)

This patch was inspired by the kernel projects page, where an ncurses
replacement for menuconfig was mentioned (by Sam Ravnborg).

Building on menuconfig, this patch implements a more modern look
interface using ncurses and ncurses' satellite libraries (menu, panel,
form). The implementation does not depend on lxdialog, which is
currently distributed with the kernel.

Signed-off-by: Nir Tzachar <nir.tzachar@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

10 files changed, 2314 insertions, 20 deletions

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 999e8a7..75bdf5a 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -23,6 +23,9 @@ menuconfig: $(obj)/mconf
 config: $(obj)/conf
 	$< $(Kconfig)
 
+nconfig: $(obj)/nconf
+	$< $(Kconfig)
+
 oldconfig: $(obj)/conf
 	$< -o $(Kconfig)
 
@@ -110,6 +113,7 @@ endif
 # Help text used by make help
 help:
 	@echo  '  config	  - Update current config utilising a line-oriented program'
+	@echo  '  nconfig         - Update current config utilising a ncurses menu based program'
 	@echo  '  menuconfig	  - Update current config utilising a menu based program'
 	@echo  '  xconfig	  - Update current config utilising a QT based front-end'
 	@echo  '  gconfig	  - Update current config utilising a GTK based front-end'
@@ -137,6 +141,8 @@ HOST_EXTRACFLAGS += -DLOCALE
 # ===========================================================================
 # Shared Makefile for the various kconfig executables:
 # conf:	  Used for defconfig, oldconfig and related targets
+# nconf:  Used for the nconfig target.
+#         Utilizes ncurses
 # mconf:  Used for the menuconfig target
 #         Utilizes the lxdialog package
 # qconf:  Used for the xconfig target
@@ -149,11 +155,16 @@ lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
 lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
 
 conf-objs	:= conf.o  zconf.tab.o
-mconf-objs	:= mconf.o zconf.tab.o $(lxdialog)
+mconf-objs     := mconf.o zconf.tab.o $(lxdialog)
+nconf-objs     := nconf.o zconf.tab.o nconf.gui.o
 kxgettext-objs	:= kxgettext.o zconf.tab.o
 
 hostprogs-y := conf qconf gconf kxgettext
 
+ifeq ($(MAKECMDGOALS),nconfig)
+	hostprogs-y += nconf
+endif
+
 ifeq ($(MAKECMDGOALS),menuconfig)
 	hostprogs-y += mconf
 endif
@@ -177,7 +188,7 @@ endif
 
 clean-files	:= lkc_defs.h qconf.moc .tmp_qtcheck \
 		   .tmp_gtkcheck zconf.tab.c lex.zconf.c zconf.hash.c gconf.glade.h
-clean-files     += mconf qconf gconf
+clean-files     += mconf qconf gconf nconf
 clean-files     += config.pot linux.pot
 
 # Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
@@ -202,6 +213,7 @@ HOSTLOADLIBES_gconf	= `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
 HOSTCFLAGS_gconf.o	= `pkg-config --cflags gtk+-2.0 gmodule-2.0 libglade-2.0` \
                           -D LKC_DIRECT_LINK
 
+HOSTLOADLIBES_nconf	= -lmenu -lpanel -lncurses
 $(obj)/qconf.o: $(obj)/.tmp_qtcheck
 
 ifeq ($(qconf-target),1)
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index e59dd0c..ce6549c 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -84,7 +84,7 @@ void conf_set_all_new_symbols(enum conf_def_mode mode);
 void kconfig_load(void);
 
 /* menu.c */
-void menu_init(void);
+void _menu_init(void);
 void menu_warn(struct menu *menu, const char *fmt, ...);
 struct menu *menu_add_menu(void);
 void menu_end_menu(void);
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index ffeb532..41e652a 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -17,7 +17,8 @@ P(menu_get_root_menu,struct menu *,(struct menu *menu));
 P(menu_get_parent_menu,struct menu *,(struct menu *menu));
 P(menu_has_help,bool,(struct menu *menu));
 P(menu_get_help,const char *,(struct menu *menu));
-P(get_symbol_str,void,(struct gstr *r, struct symbol *sym));
+P(get_symbol_str, void, (struct gstr *r, struct symbol *sym));
+P(get_relations_str, struct gstr, (struct symbol **sym_arr));
 P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
 
 /* symbol.c */
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index ac1e9da..a4a7519 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -282,19 +282,6 @@ static void show_textbox(const char *title, const char *text, int r, int c);
 static void show_helptext(const char *title, const char *text);
 static void show_help(struct menu *menu);
 
-static struct gstr get_relations_str(struct symbol **sym_arr)
-{
-	struct symbol *sym;
-	struct gstr res = str_new();
-	int i;
-
-	for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
-		get_symbol_str(&res, sym);
-	if (!i)
-		str_append(&res, _("No matches found.\n"));
-	return res;
-}
-
 static char filename[PATH_MAX+1];
 static void set_config_filename(const char *config_filename)
 {
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 059a246..21bfb3d 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -38,7 +38,7 @@ static void prop_warn(struct property *prop, const char *fmt, ...)
 	va_end(ap);
 }
 
-void menu_init(void)
+void _menu_init(void)
 {
 	current_entry = current_menu = &rootmenu;
 	last_entry_ptr = &rootmenu.list;
@@ -515,6 +515,20 @@ void get_symbol_str(struct gstr *r, struct symbol *sym)
 	str_append(r, "\n\n");
 }
 
+struct gstr get_relations_str(struct symbol **sym_arr)
+{
+	struct symbol *sym;
+	struct gstr res = str_new();
+	int i;
+
+	for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
+		get_symbol_str(&res, sym);
+	if (!i)
+		str_append(&res, _("No matches found.\n"));
+	return res;
+}
+
+
 void menu_get_ext_help(struct menu *menu, struct gstr *help)
 {
 	struct symbol *sym = menu->sym;
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
new file mode 100644
index 0000000..8c56150
--- /dev/null
+++ b/scripts/kconfig/nconf.c
@@ -0,0 +1,1568 @@
+/*
+ * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Derived from menuconfig.
+ *
+ */
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+#include "nconf.h"
+
+static const char nconf_readme[] = N_(
+"Overview\n"
+"--------\n"
+"Some kernel features may be built directly into the kernel.\n"
+"Some may be made into loadable runtime modules.  Some features\n"
+"may be completely removed altogether.  There are also certain\n"
+"kernel parameters which are not really features, but must be\n"
+"entered in as decimal or hexadecimal numbers or possibly text.\n"
+"\n"
+"Menu items beginning with following braces represent features that\n"
+"  [ ] can be built in or removed\n"
+"  < > can be built in, modularized or removed\n"
+"  { } can be built in or modularized (selected by other feature)\n"
+"  - - are selected by other feature,\n"
+"  XXX cannot be selected. use Symbol Info to find out why,\n"
+"while *, M or whitespace inside braces means to build in, build as\n"
+"a module or to exclude the feature respectively.\n"
+"\n"
+"To change any of these features, highlight it with the cursor\n"
+"keys and press <Y> to build it in, <M> to make it a module or\n"
+"<N> to removed it.  You may also press the <Space Bar> to cycle\n"
+"through the available options (ie. Y->N->M->Y).\n"
+"\n"
+"Some additional keyboard hints:\n"
+"\n"
+"Menus\n"
+"----------\n"
+"o  Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
+"   you wish to change use <Enter> or <Space>. Goto submenu by \n"
+"   pressing <Enter> of <right-arrow>. Use <Esc> or <left-arrow> to go back.\n"
+"   Submenus are designated by \"--->\".\n"
+"\n"
+"   Shortcut: Press the option's highlighted letter (hotkey).\n"
+"             Pressing a hotkey more than once will sequence\n"
+"             through all visible items which use that hotkey.\n"
+"\n"
+"   You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
+"   unseen options into view.\n"
+"\n"
+"o  To exit a menu use the just press <ESC> <F5> <F8> or <left-arrow>.\n"
+"\n"
+"o  To get help with an item, press <F1>\n"
+"   Shortcut: Press <h> or <?>.\n"
+"\n"
+"\n"
+"Radiolists  (Choice lists)\n"
+"-----------\n"
+"o  Use the cursor keys to select the option you wish to set and press\n"
+"   <S> or the <SPACE BAR>.\n"
+"\n"
+"   Shortcut: Press the first letter of the option you wish to set then\n"
+"             press <S> or <SPACE BAR>.\n"
+"\n"
+"o  To see available help for the item, press <F1>\n"
+"   Shortcut: Press <H> or <?>.\n"
+"\n"
+"\n"
+"Data Entry\n"
+"-----------\n"
+"o  Enter the requested information and press <ENTER>\n"
+"   If you are entering hexadecimal values, it is not necessary to\n"
+"   add the '0x' prefix to the entry.\n"
+"\n"
+"o  For help, press <F1>.\n"
+"\n"
+"\n"
+"Text Box    (Help Window)\n"
+"--------\n"
+"o  Use the cursor keys to scroll up/down/left/right.  The VI editor\n"
+"   keys h,j,k,l function here as do <SPACE BAR> for those\n"
+"   who are familiar with less and lynx.\n"
+"\n"
+"o  Press <Enter>, <F1>, <F5>, <F7> or <Esc> to exit.\n"
+"\n"
+"\n"
+"Alternate Configuration Files\n"
+"-----------------------------\n"
+"nconfig supports the use of alternate configuration files for\n"
+"those who, for various reasons, find it necessary to switch\n"
+"between different kernel configurations.\n"
+"\n"
+"At the end of the main menu you will find two options.  One is\n"
+"for saving the current configuration to a file of your choosing.\n"
+"The other option is for loading a previously saved alternate\n"
+"configuration.\n"
+"\n"
+"Even if you don't use alternate configuration files, but you\n"
+"find during a nconfig session that you have completely messed\n"
+"up your settings, you may use the \"Load Alternate...\" option to\n"
+"restore your previously saved settings from \".config\" without\n"
+"restarting nconfig.\n"
+"\n"
+"Other information\n"
+"-----------------\n"
+"If you use nconfig in an XTERM window make sure you have your\n"
+"$TERM variable set to point to a xterm definition which supports color.\n"
+"Otherwise, nconfig will look rather bad.  nconfig will not\n"
+"display correctly in a RXVT window because rxvt displays only one\n"
+"intensity of color, bright.\n"
+"\n"
+"nconfig will display larger menus on screens or xterms which are\n"
+"set to display more than the standard 25 row by 80 column geometry.\n"
+"In order for this to work, the \"stty size\" command must be able to\n"
+"display the screen's current row and column geometry.  I STRONGLY\n"
+"RECOMMEND that you make sure you do NOT have the shell variables\n"
+"LINES and COLUMNS exported into your environment.  Some distributions\n"
+"export those variables via /etc/profile.  Some ncurses programs can\n"
+"become confused when those variables (LINES & COLUMNS) don't reflect\n"
+"the true screen size.\n"
+"\n"
+"Optional personality available\n"
+"------------------------------\n"
+"If you prefer to have all of the kernel options listed in a single\n"
+"menu, rather than the default multimenu hierarchy, run the nconfig\n"
+"with NCONFIG_MODE environment variable set to single_menu. Example:\n"
+"\n"
+"make NCONFIG_MODE=single_menu nconfig\n"
+"\n"
+"<Enter> will then unroll the appropriate category, or enfold it if it\n"
+"is already unrolled.\n"
+"\n"
+"Note that this mode can eventually be a little more CPU expensive\n"
+"(especially with a larger number of unrolled categories) than the\n"
+"default mode.\n"
+"\n"),
+menu_no_f_instructions[] = N_(
+" You do not have function keys support. Please follow the\n"
+" following instructions:\n"
+" Arrow keys navigate the menu.\n"
+" <Enter> or <right-arrow> selects submenus --->.\n"
+" Capital Letters are hotkeys.\n"
+" Pressing <Y> includes, <N> excludes, <M> modularizes features.\n"
+" Pressing SpaceBar toggles between the above options\n"
+" Press <Esc> or <left-arrow> to go back one menu, \n"
+" <?> or <h> for Help, </> for Search.\n"
+" <1> is interchangable with <F1>, <2> with <F2>, etc.\n"
+" Legend: [*] built-in  [ ] excluded  <M> module  < > module capable.\n"
+" <Esc> always leaves the current window\n"),
+menu_instructions[] = N_(
+" Arrow keys navigate the menu.\n"
+" <Enter> or <right-arrow> selects submenus --->.\n"
+" Capital Letters are hotkeys.\n"
+" Pressing <Y> includes, <N> excludes, <M> modularizes features.\n"
+" Pressing SpaceBar toggles between the above options\n"
+" Press <Esc>, <F3> or <left-arrow> to go back one menu, \n"
+" <?>, <F1> or <h> for Help, </> for Search.\n"
+" <1> is interchangable with <F1>, <2> with <F2>, etc.\n"
+" Legend: [*] built-in  [ ] excluded  <M> module  < > module capable.\n"
+" <Esc> always leaves the current window\n"),
+radiolist_instructions[] = N_(
+" Use the arrow keys to navigate this window or\n"
+" press the hotkey of the item you wish to select\n"
+" followed by the <SPACE BAR>.\n"
+" Press <?>, <F1> or <h> for additional information about this option.\n"),
+inputbox_instructions_int[] = N_(
+"Please enter a decimal value.\n"
+"Fractions will not be accepted.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+inputbox_instructions_hex[] = N_(
+"Please enter a hexadecimal value.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+inputbox_instructions_string[] = N_(
+"Please enter a string value.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+setmod_text[] = N_(
+"This feature depends on another which\n"
+"has been configured as a module.\n"
+"As a result, this feature will be built as a module."),
+nohelp_text[] = N_(
+"There is no help available for this kernel option.\n"),
+load_config_text[] = N_(
+"Enter the name of the configuration file you wish to load.\n"
+"Accept the name shown to restore the configuration you\n"
+"last retrieved.  Leave blank to abort."),
+load_config_help[] = N_(
+"\n"
+"For various reasons, one may wish to keep several different kernel\n"
+"configurations available on a single machine.\n"
+"\n"
+"If you have saved a previous configuration in a file other than the\n"
+"kernel's default, entering the name of the file here will allow you\n"
+"to modify that configuration.\n"
+"\n"
+"If you are uncertain, then you have probably never used alternate\n"
+"configuration files.  You should therefor leave this blank to abort.\n"),
+save_config_text[] = N_(
+"Enter a filename to which this configuration should be saved\n"
+"as an alternate.  Leave blank to abort."),
+save_config_help[] = N_(
+"\n"
+"For various reasons, one may wish to keep different kernel\n"
+"configurations available on a single machine.\n"
+"\n"
+"Entering a file name here will allow you to later retrieve, modify\n"
+"and use the current configuration as an alternate to whatever\n"
+"configuration options you have selected at that time.\n"
+"\n"
+"If you are uncertain what all this means then you should probably\n"
+"leave this blank.\n"),
+search_help[] = N_(
+"\n"
+"Search for CONFIG_ symbols and display their relations.\n"
+"Regular expressions are allowed.\n"
+"Example: search for \"^FOO\"\n"
+"Result:\n"
+"-----------------------------------------------------------------\n"
+"Symbol: FOO [ = m]\n"
+"Prompt: Foo bus is used to drive the bar HW\n"
+"Defined at drivers/pci/Kconfig:47\n"
+"Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
+"Location:\n"
+"  -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
+"    -> PCI support (PCI [ = y])\n"
+"      -> PCI access mode (<choice> [ = y])\n"
+"Selects: LIBCRC32\n"
+"Selected by: BAR\n"
+"-----------------------------------------------------------------\n"
+"o The line 'Prompt:' shows the text used in the menu structure for\n"
+"  this CONFIG_ symbol\n"
+"o The 'Defined at' line tell at what file / line number the symbol\n"
+"  is defined\n"
+"o The 'Depends on:' line tell what symbols needs to be defined for\n"
+"  this symbol to be visible in the menu (selectable)\n"
+"o The 'Location:' lines tell where in the menu structure this symbol\n"
+"  is located\n"
+"    A location followed by a [ = y] indicate that this is a selectable\n"
+"    menu item - and current value is displayed inside brackets.\n"
+"o The 'Selects:' line tell what symbol will be automatically\n"
+"  selected if this symbol is selected (y or m)\n"
+"o The 'Selected by' line tell what symbol has selected this symbol\n"
+"\n"
+"Only relevant lines are shown.\n"
+"\n\n"
+"Search examples:\n"
+"Examples: USB   = > find all CONFIG_ symbols containing USB\n"
+"          ^USB => find all CONFIG_ symbols starting with USB\n"
+"          USB$ => find all CONFIG_ symbols ending with USB\n"
+"\n");
+
+struct mitem {
+	char str[256];
+	char tag;
+	void *usrptr;
+	int is_hot;
+	int is_visible;
+};
+
+#define MAX_MENU_ITEMS 4096
+static int show_all_items;
+static int indent;
+static struct menu *current_menu;
+static int child_count;
+static int single_menu_mode;
+/* the window in which all information appears */
+static WINDOW *main_window;
+/* the largest size of the menu window */
+static int mwin_max_lines;
+static int mwin_max_cols;
+/* the window in which we show option buttons */
+static MENU *curses_menu;
+static ITEM *curses_menu_items[MAX_MENU_ITEMS];
+static struct mitem k_menu_items[MAX_MENU_ITEMS];
+static int items_num;
+static int global_exit;
+/* the currently selected button */
+const char *current_instructions = menu_instructions;
+/* this array is used to implement hot keys. it is updated in item_make and
+ * resetted in clean_items. It would be better to use a hash, but lets keep it
+ * simple... */
+#define MAX_SAME_KEY MAX_MENU_ITEMS
+struct {
+	int count;
+	int ptrs[MAX_MENU_ITEMS];
+} hotkeys[1<<(sizeof(char)*8)];
+
+static void conf(struct menu *menu);
+static void conf_choice(struct menu *menu);
+static void conf_string(struct menu *menu);
+static void conf_load(void);
+static void conf_save(void);
+static void show_help(struct menu *menu);
+static int do_exit(void);
+static void setup_windows(void);
+
+typedef void (*function_key_handler_t)(int *key, struct menu *menu);
+static void handle_f1(int *key, struct menu *current_item);
+static void handle_f2(int *key, struct menu *current_item);
+static void handle_f3(int *key, struct menu *current_item);
+static void handle_f4(int *key, struct menu *current_item);
+static void handle_f5(int *key, struct menu *current_item);
+static void handle_f6(int *key, struct menu *current_item);
+static void handle_f7(int *key, struct menu *current_item);
+static void handle_f8(int *key, struct menu *current_item);
+
+struct function_keys {
+	const char *key_str;
+	const char *func;
+	function_key key;
+	function_key_handler_t handler;
+};
+
+static const int function_keys_num = 8;
+struct function_keys function_keys[] = {
+	{
+		.key_str = "F1",
+		.func = "Help",
+		.key = F_HELP,
+		.handler = handle_f1,
+	},
+	{
+		.key_str = "F2",
+		.func = "Symbol Info",
+		.key = F_SYMBOL,
+		.handler = handle_f2,
+	},
+	{
+		.key_str = "F3",
+		.func = "Instructions",
+		.key = F_INSTS,
+		.handler = handle_f3,
+	},
+	{
+		.key_str = "F4",
+		.func = "Config",
+		.key = F_CONF,
+		.handler = handle_f4,
+	},
+	{
+		.key_str = "F5",
+		.func = "Back",
+		.key = F_BACK,
+		.handler = handle_f5,
+	},
+	{
+		.key_str = "F6",
+		.func = "Save",
+		.key = F_SAVE,
+		.handler = handle_f6,
+	},
+	{
+		.key_str = "F7",
+		.func = "Load",
+		.key = F_LOAD,
+		.handler = handle_f7,
+	},
+	{
+		.key_str = "F8",
+		.func = "Exit",
+		.key = F_EXIT,
+		.handler = handle_f8,
+	},
+};
+
+static void print_function_line(void)
+{
+	int i;
+	int offset = 1;
+	const int skip = 1;
+
+	for (i = 0; i < function_keys_num; i++) {
+		wattrset(main_window, attributes[FUNCTION_HIGHLIGHT]);
+		mvwprintw(main_window, LINES-3, offset,
+				"%s",
+				function_keys[i].key_str);
+		wattrset(main_window, attributes[FUNCTION_TEXT]);
+		offset += strlen(function_keys[i].key_str);
+		mvwprintw(main_window, LINES-3,
+				offset, "%s",
+				function_keys[i].func);
+		offset += strlen(function_keys[i].func) + skip;
+	}
+	wattrset(main_window, attributes[NORMAL]);
+}
+
+/* help */
+static void handle_f1(int *key, struct menu *current_item)
+{
+	show_scroll_win(main_window,
+			_("README"), _(nconf_readme));
+	return;
+}
+
+/* symbole help */
+static void handle_f2(int *key, struct menu *current_item)
+{
+	show_help(current_item);
+	return;
+}
+
+/* instructions */
+static void handle_f3(int *key, struct menu *current_item)
+{
+	show_scroll_win(main_window,
+			_("Instructions"),
+			_(current_instructions));
+	return;
+}
+
+/* config */
+static void handle_f4(int *key, struct menu *current_item)
+{
+	int res = btn_dialog(main_window,
+			_("Show all symbols?"),
+			2,
+			"   <Show All>   ",
+			"<Don't show all>");
+	if (res == 0)
+		show_all_items = 1;
+	else if (res == 1)
+		show_all_items = 0;
+
+	return;
+}
+
+/* back */
+static void handle_f5(int *key, struct menu *current_item)
+{
+	*key = KEY_LEFT;
+	return;
+}
+
+/* save */
+static void handle_f6(int *key, struct menu *current_item)
+{
+	conf_save();
+	return;
+}
+
+/* load */
+static void handle_f7(int *key, struct menu *current_item)
+{
+	conf_load();
+	return;
+}
+
+/* exit */
+static void handle_f8(int *key, struct menu *current_item)
+{
+	do_exit();
+	return;
+}
+
+/* return != 0 to indicate the key was handles */
+int process_special_keys(int *key, struct menu *menu)
+{
+	int i;
+
+	if (*key == KEY_RESIZE) {
+		setup_windows();
+		return 1;
+	}
+
+	for (i = 0; i < function_keys_num; i++) {
+		if (*key == KEY_F(function_keys[i].key) ||
+		    *key == '0' + function_keys[i].key){
+			function_keys[i].handler(key, menu);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static void clean_items(void)
+{
+	int i;
+	for (i = 0; curses_menu_items[i]; i++)
+		free_item(curses_menu_items[i]);
+	bzero(curses_menu_items, sizeof(curses_menu_items));
+	bzero(k_menu_items, sizeof(k_menu_items));
+	bzero(hotkeys, sizeof(hotkeys));
+	items_num = 0;
+}
+
+/* return the index of the next hot item, or -1 if no such item exists */
+int get_next_hot(int c)
+{
+	static int hot_index;
+	static int hot_char;
+
+	if (c < 0 || c > 255 || hotkeys[c].count <= 0)
+		return -1;
+
+	if (hot_char == c) {
+		hot_index = (hot_index+1)%hotkeys[c].count;
+		return hotkeys[c].ptrs[hot_index];
+	} else {
+		hot_char = c;
+		hot_index = 0;
+		return hotkeys[c].ptrs[0];
+	}
+}
+
+/* can the char c be a hot key? no, if c is a common shortcut used elsewhere */
+int canbhot(char c)
+{
+	c = tolower(c);
+	return isalnum(c) && c != 'y' && c != 'm' && c != 'h' &&
+		c != 'n' && c != '?';
+}
+
+/* check if str already contains a hot key. */
+int is_hot(int index)
+{
+	return k_menu_items[index].is_hot;
+}
+
+/* find the first possible hot key, and mark it.
+ * index is the index of the item in the menu
+ * return 0 on success*/
+int make_hot(char *dest, int len, const char *org, int index)
+{
+	int position = -1;
+	int i;
+	int tmp;
+	int c;
+	int org_len = strlen(org);
+
+	if (org == NULL || is_hot(index))
+		return 1;
+
+	/* make sure not to make hot keys out of markers.
+	 * find where to start looking for a hot key
+	 */
+	i = 0;
+	/* skip white space */
+	while (i < org_len && org[i] == ' ')
+		i++;
+	if (i == org_len)
+		return -1;
+	/* if encountering '(' or '<' or '[', find the match and look from there
+	 **/
+	if (org[i] == '[' || org[i] == '<' || org[i] == '(') {
+		i++;
+		for (; i < org_len; i++)
+			if (org[i] == ']' || org[i] == '>' || org[i] == ')')
+				break;
+	}
+	if (i == org_len)
+		return -1;
+	for (; i < org_len; i++) {
+		if (canbhot(org[i]) && org[i-1] != '<' && org[i-1] != '(') {
+			position = i;
+			break;
+		}
+	}
+	if (position == -1)
+		return 1;
+
+	/* ok, char at org[position] should be a hot key to this item */
+	c = tolower(org[position]);
+	tmp = hotkeys[c].count;
+	hotkeys[c].ptrs[tmp] = index;
+	hotkeys[c].count++;
+	/*
+	   snprintf(dest, len, "%.*s(%c)%s", position, org, org[position],
+	   &org[position+1]);
+	   */
+	/* make org[position] uppercase, and all leading letter small case */
+	strncpy(dest, org, len);
+	for (i = 0; i < position; i++)
+		dest[i] = tolower(dest[i]);
+	dest[position] = toupper(dest[position]);
+	k_menu_items[index].is_hot = 1;
+	return 0;
+}
+
+/* Make a new item. Add a hotkey mark in the first possible letter.
+ * As ncurses does not allow any attributes inside menue item, we mark the
+ * hot key as the first capitalized letter in the string */
+void item_make(struct menu *menu, char tag, const char *fmt, ...)
+{
+	va_list ap;
+	char tmp_str[256];
+
+	if (items_num > MAX_MENU_ITEMS-1)
+		return;
+
+	bzero(&k_menu_items[items_num], sizeof(k_menu_items[0]));
+	k_menu_items[items_num].tag = tag;
+	k_menu_items[items_num].usrptr = menu;
+	if (menu != NULL)
+		k_menu_items[items_num].is_visible =
+			menu_is_visible(menu);
+	else
+		k_menu_items[items_num].is_visible = 1;
+
+	va_start(ap, fmt);
+	vsnprintf(tmp_str, sizeof(tmp_str), fmt, ap);
+	if (!k_menu_items[items_num].is_visible)
+		memcpy(tmp_str, "XXX", 3);
+	va_end(ap);
+	if (make_hot(
+		k_menu_items[items_num].str,
+		sizeof(k_menu_items[items_num].str), tmp_str, items_num) != 0)
+		strncpy(k_menu_items[items_num].str,
+			tmp_str,
+			sizeof(k_menu_items[items_num].str));
+
+	curses_menu_items[items_num] = new_item(
+			k_menu_items[items_num].str,
+			k_menu_items[items_num].str);
+	set_item_userptr(curses_menu_items[items_num],
+			&k_menu_items[items_num]);
+	/*
+	if (!k_menu_items[items_num].is_visible)
+		item_opts_off(curses_menu_items[items_num], O_SELECTABLE);
+	*/
+
+	items_num++;
+	curses_menu_items[items_num] = NULL;
+}
+
+/* very hackish. adds a string to the last item added */
+void item_add_str(const char *fmt, ...)
+{
+	va_list ap;
+	int index = items_num-1;
+	char new_str[256];
+	char tmp_str[256];
+
+	if (index < 0)
+		return;
+
+	va_start(ap, fmt);
+	vsnprintf(new_str, sizeof(new_str), fmt, ap);
+	va_end(ap);
+	snprintf(tmp_str, sizeof(tmp_str), "%s%s",
+			k_menu_items[index].str, new_str);
+	if (make_hot(k_menu_items[index].str,
+			sizeof(k_menu_items[index].str), tmp_str, index) != 0)
+		strncpy(k_menu_items[index].str,
+			tmp_str,
+			sizeof(k_menu_items[index].str));
+
+	free_item(curses_menu_items[index]);
+	curses_menu_items[index] = new_item(
+			k_menu_items[index].str,
+			k_menu_items[index].str);
+	set_item_userptr(curses_menu_items[index],
+			&k_menu_items[index]);
+}
+
+/* get the tag of the currently selected item */
+char item_tag(void)
+{
+	ITEM *cur;
+	struct mitem *mcur;
+
+	cur = current_item(curses_menu);
+	if (cur == NULL)
+		return 0;
+	mcur = (struct mitem *) item_userptr(cur);
+	return mcur->tag;
+}
+
+int curses_item_index(void)
+{
+	return  item_index(current_item(curses_menu));
+}
+
+void *item_data(void)
+{
+	ITEM *cur;
+	struct mitem *mcur;
+
+	cur = current_item(curses_menu);
+	mcur = (struct mitem *) item_userptr(cur);
+	return mcur->usrptr;
+
+}
+
+int item_is_tag(char tag)
+{
+	return item_tag() == tag;
+}
+
+static char filename[PATH_MAX+1];
+static char menu_backtitle[PATH_MAX+128];
+const char *set_config_filename(const char *config_filename)
+{
+	int size;
+	struct symbol *sym;
+
+	sym = sym_lookup("KERNELVERSION", 0);
+	sym_calc_value(sym);
+	size = snprintf(menu_backtitle, sizeof(menu_backtitle),
+			_("%s - Linux Kernel v%s Configuration"),
+			config_filename, sym_get_string_value(sym));
+	if (size >= sizeof(menu_backtitle))
+		menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
+
+	size = snprintf(filename, sizeof(filename), "%s", config_filename);
+	if (size >= sizeof(filename))
+		filename[sizeof(filename)-1] = '\0';
+	return menu_backtitle;
+}
+
+/* command = 0 is supress, 1 is restore */
+static void supress_stdout(int command)
+{
+	static FILE *org_stdout;
+	static FILE *org_stderr;
+
+	if (command == 0) {
+		org_stdout = stdout;
+		org_stderr = stderr;
+		stdout = fopen("/dev/null", "a");
+		stderr = fopen("/dev/null", "a");
+	} else {
+		fclose(stdout);
+		fclose(stderr);
+		stdout = org_stdout;
+		stderr = org_stderr;
+	}
+}
+
+/* return = 0 means we are successful.
+ * -1 means go on doing what you were doing
+ */
+static int do_exit(void)
+{
+	int res;
+	if (!conf_get_changed()) {
+		global_exit = 1;
+		return 0;
+	}
+	res = btn_dialog(main_window,
+			_("Do you wish to save your "
+				"new kernel configuration?\n"
+				"<ESC> to cancel and resume nconfig."),
+			2,
+			"   <save>   ",
+			"<don't save>");
+	if (res == KEY_EXIT) {
+		global_exit = 0;
+		return -1;
+	}
+
+	/* if we got here, the user really wants to exit */
+	switch (res) {
+	case 0:
+		supress_stdout(0);
+		res = conf_write(filename);
+		supress_stdout(1);
+		if (res)
+			btn_dialog(
+				main_window,
+				_("Error during writing of the kernel "
+				  "configuration.\n"
+				  "Your kernel configuration "
+				  "changes were NOT saved."),
+				  1,
+				  "<OK>");
+		else {
+			char buf[1024];
+			snprintf(buf, 1024,
+				_("Configuration written to %s\n"
+				  "End of Linux kernel configuration.\n"
+				  "Execute 'make' to build the kernel or try"
+				  " 'make help'."), filename);
+			btn_dialog(
+				main_window,
+				buf,
+				1,
+				"<OK>");
+		}
+		break;
+	default:
+		btn_dialog(
+			main_window,
+			_("Your kernel configuration changes were NOT saved."),
+			1,
+			"<OK>");
+		break;
+	}
+	global_exit = 1;
+	return 0;
+}
+
+
+static void search_conf(void)
+{
+	struct symbol **sym_arr;
+	struct gstr res;
+	char dialog_input_result[100];
+	char *dialog_input;
+	int dres;
+again:
+	dres = dialog_inputbox(main_window,
+			_("Search Configuration Parameter"),
+			_("Enter CONFIG_ (sub)string to search for "
+				"(with or without \"CONFIG\")"),
+			"", dialog_input_result, 99);
+	switch (dres) {
+	case 0:
+		break;
+	case 1:
+		show_scroll_win(main_window,
+				_("Search Configuration"), search_help);
+		goto again;
+	default:
+		return;
+	}
+
+	/* strip CONFIG_ if necessary */
+	dialog_input = dialog_input_result;
+	if (strncasecmp(dialog_input_result, "CONFIG_", 7) == 0)
+		dialog_input += 7;
+
+	sym_arr = sym_re_search(dialog_input);
+	res = get_relations_str(sym_arr);
+	free(sym_arr);
+	show_scroll_win(main_window,
+			_("Search Results"), str_get(&res));
+	str_free(&res);
+}
+
+
+static void build_conf(struct menu *menu)
+{
+	struct symbol *sym;
+	struct property *prop;
+	struct menu *child;
+	int type, tmp, doint = 2;
+	tristate val;
+	char ch;
+
+	if (!menu || (!show_all_items && !menu_is_visible(menu)))
+		return;
+
+	sym = menu->sym;
+	prop = menu->prompt;
+	if (!sym) {
+		if (prop && menu != current_menu) {
+			const char *prompt = menu_get_prompt(menu);
+			enum prop_type ptype;
+			ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
+			switch (ptype) {
+			case P_MENU:
+				child_count++;
+				prompt = _(prompt);
+				if (single_menu_mode) {
+					item_make(menu, 'm',
+						"%s%*c%s",
+						menu->data ? "-->" : "++>",
+						indent + 1, ' ', prompt);
+				} else
+					item_make(menu, 'm',
+						"   %*c%s  --->",
+						indent + 1,
+						' ', prompt);
+
+				if (single_menu_mode && menu->data)
+					goto conf_childs;
+				return;
+			case P_COMMENT:
+				if (prompt) {
+					child_count++;
+					item_make(menu, ':',
+						"   %*c*** %s ***",
+						indent + 1, ' ',
+						_(prompt));
+				}
+				break;
+			default:
+				if (prompt) {
+					child_count++;
+					item_make(menu, ':', "---%*c%s",
+						indent + 1, ' ',
+						_(prompt));
+				}
+			}
+		} else
+			doint = 0;
+		goto conf_childs;
+	}
+
+	type = sym_get_type(sym);
+	if (sym_is_choice(sym)) {
+		struct symbol *def_sym = sym_get_choice_value(sym);
+		struct menu *def_menu = NULL;
+
+		child_count++;
+		for (child = menu->list; child; child = child->next) {
+			if (menu_is_visible(child) && child->sym == def_sym)
+				def_menu = child;
+		}
+
+		val = sym_get_tristate_value(sym);
+		if (sym_is_changable(sym)) {
+			switch (type) {
+			case S_BOOLEAN:
+				item_make(menu, 't', "[%c]",
+						val == no ? ' ' : '*');
+				break;
+			case S_TRISTATE:
+				switch (val) {
+				case yes:
+					ch = '*';
+					break;
+				case mod:
+					ch = 'M';
+					break;
+				default:
+					ch = ' ';
+					break;
+				}
+				item_make(menu, 't', "<%c>", ch);
+				break;
+			}
+		} else {
+			item_make(menu, def_menu ? 't' : ':', "   ");
+		}
+
+		item_add_str("%*c%s", indent + 1,
+				' ', _(menu_get_prompt(menu)));
+		if (val == yes) {
+			if (def_menu) {
+				item_add_str(" (%s)",
+					_(menu_get_prompt(def_menu)));
+				item_add_str("  --->");
+				if (def_menu->list) {
+					indent += 2;
+					build_conf(def_menu);
+					indent -= 2;
+				}
+			}
+			return;
+		}
+	} else {
+		if (menu == current_menu) {
+			item_make(menu, ':',
+				"---%*c%s", indent + 1,
+				' ', _(menu_get_prompt(menu)));
+			goto conf_childs;
+		}
+		child_count++;
+		val = sym_get_tristate_value(sym);
+		if (sym_is_choice_value(sym) && val == yes) {
+			item_make(menu, ':', "   ");
+		} else {
+			switch (type) {
+			case S_BOOLEAN:
+				if (sym_is_changable(sym))
+					item_make(menu, 't', "[%c]",
+						val == no ? ' ' : '*');
+				else
+					item_make(menu, 't', "-%c-",
+						val == no ? ' ' : '*');
+				break;
+			case S_TRISTATE:
+				switch (val) {
+				case yes:
+					ch = '*';
+					break;
+				case mod:
+					ch = 'M';
+					break;
+				default:
+					ch = ' ';
+					break;
+				}
+				if (sym_is_changable(sym)) {
+					if (sym->rev_dep.tri == mod)
+						item_make(menu,
+							't', "{%c}", ch);
+					else
+						item_make(menu,
+							't', "<%c>", ch);
+				} else
+					item_make(menu, 't', "-%c-", ch);
+				break;
+			default:
+				tmp = 2 + strlen(sym_get_string_value(sym));
+				item_make(menu, 's', "(%s)",
+						sym_get_string_value(sym));
+				tmp = indent - tmp + 4;
+				if (tmp < 0)
+					tmp = 0;
+				item_add_str("%*c%s%s", tmp, ' ',
+						_(menu_get_prompt(menu)),
+						(sym_has_value(sym) ||
+						 !sym_is_changable(sym)) ? "" :
+						_(" (NEW)"));
+				goto conf_childs;
+			}
+		}
+		item_add_str("%*c%s%s", indent + 1, ' ',
+				_(menu_get_prompt(menu)),
+				(sym_has_value(sym) || !sym_is_changable(sym)) ?
+				"" : _(" (NEW)"));
+		if (menu->prompt && menu->prompt->type == P_MENU) {
+			item_add_str("  --->");
+			return;
+		}
+	}
+
+conf_childs:
+	indent += doint;
+	for (child = menu->list; child; child = child->next)
+		build_conf(child);
+	indent -= doint;
+}
+
+static void reset_menu(void)
+{
+	unpost_menu(curses_menu);
+	clean_items();
+}
+
+/* adjust the menu to show this item.
+ * prefer not to scroll the menu if possible*/
+static void center_item(int selected_index, int *last_top_row)
+{
+	int toprow;
+	int maxy, maxx;
+
+	scale_menu(curses_menu, &maxy, &maxx);
+	set_top_row(curses_menu, *last_top_row);
+	toprow = top_row(curses_menu);
+	if (selected_index >= toprow && selected_index < toprow+maxy) {
+		/* we can only move the selected item. no need to scroll */
+		set_current_item(curses_menu,
+				curses_menu_items[selected_index]);
+	} else {
+		toprow = max(selected_index-maxy/2, 0);
+		if (toprow >= item_count(curses_menu)-maxy)
+			toprow = item_count(curses_menu)-mwin_max_lines;
+		set_top_row(curses_menu, toprow);
+		set_current_item(curses_menu,
+				curses_menu_items[selected_index]);
+	}
+	*last_top_row = toprow;
+	post_menu(curses_menu);
+	refresh_all_windows(main_window);
+}
+
+/* this function assumes reset_menu has been called before */
+static void show_menu(const char *prompt, const char *instructions,
+		int selected_index, int *last_top_row)
+{
+	int maxx, maxy;
+	WINDOW *menu_window;
+
+	current_instructions = instructions;
+
+	clear();
+	wattrset(main_window, attributes[NORMAL]);
+	print_in_middle(stdscr, 1, 0, COLS,
+			menu_backtitle,
+			attributes[MAIN_HEADING]);
+
+	wattrset(main_window, attributes[MAIN_MENU_BOX]);
+	box(main_window, 0, 0);
+	wattrset(main_window, attributes[MAIN_MENU_HEADING]);
+	mvwprintw(main_window, 0, 3, " %s ", prompt);
+	wattrset(main_window, attributes[NORMAL]);
+
+	set_menu_items(curses_menu, curses_menu_items);
+
+	/* position the menu at the middle of the screen */
+	scale_menu(curses_menu, &maxy, &maxx);
+	maxx = min(maxx, mwin_max_cols);
+	maxy = mwin_max_lines-1;
+	menu_window = derwin(main_window,
+			maxy,
+			maxx,
+			2,
+			(mwin_max_cols-maxx)/2);
+	keypad(menu_window, TRUE);
+	set_menu_win(curses_menu, menu_window);
+	set_menu_sub(curses_menu, menu_window);
+
+	/* must reassert this after changing items, otherwise returns to a
+	 * default of 16
+	 */
+	set_menu_format(curses_menu, maxy, 1);
+	center_item(selected_index, last_top_row);
+	set_menu_format(curses_menu, maxy, 1);
+
+	print_function_line();
+
+	/* Post the menu */
+	post_menu(curses_menu);
+	refresh_all_windows(main_window);
+}
+
+
+static void conf(struct menu *menu)
+{
+	char pattern[256];
+	struct menu *submenu = 0;
+	const char *prompt = menu_get_prompt(menu);
+	struct symbol *sym;
+	struct menu *active_menu = NULL;
+	int res;
+	int current_index = 0;
+	int last_top_row = 0;
+
+	bzero(pattern, sizeof(pattern));
+
+	while (!global_exit) {
+		reset_menu();
+		current_menu = menu;
+		build_conf(menu);
+		if (!child_count)
+			break;
+
+		show_menu(prompt ? _(prompt) : _("Main Menu"),
+				_(menu_instructions),
+				current_index, &last_top_row);
+		keypad((menu_win(curses_menu)), TRUE);
+		while (!global_exit && (res = wgetch(menu_win(curses_menu)))) {
+			if (process_special_keys(&res,
+						(struct menu *) item_data()))
+				break;
+			switch (res) {
+			case KEY_DOWN:
+				menu_driver(curses_menu, REQ_DOWN_ITEM);
+				break;
+			case KEY_UP:
+				menu_driver(curses_menu, REQ_UP_ITEM);
+				break;
+			case KEY_NPAGE:
+				menu_driver(curses_menu, REQ_SCR_DPAGE);
+				break;
+			case KEY_PPAGE:
+				menu_driver(curses_menu, REQ_SCR_UPAGE);
+				break;
+			case KEY_HOME:
+				menu_driver(curses_menu, REQ_FIRST_ITEM);
+				break;
+			case KEY_END:
+				menu_driver(curses_menu, REQ_LAST_ITEM);
+				break;
+			case 'h':
+			case '?':
+				show_help((struct menu *) item_data());
+				break;
+			}
+			if (res == 10 || res == 27 ||
+				res == 32 || res == 'n' || res == 'y' ||
+				res == KEY_LEFT || res == KEY_RIGHT ||
+				res == 'm' || res == '/')
+				break;
+			else if (canbhot(res)) {
+				/* check for hot keys: */
+				int tmp = get_next_hot(res);
+				if (tmp != -1)
+					center_item(tmp, &last_top_row);
+			}
+			refresh_all_windows(main_window);
+		}
+
+		refresh_all_windows(main_window);
+		/* if ESC  or left*/
+		if (res == 27 || (menu != &rootmenu && res == KEY_LEFT))
+			break;
+
+		/* remember location in the menu */
+		last_top_row = top_row(curses_menu);
+		current_index = curses_item_index();
+
+		if (!item_tag())
+			continue;
+
+		submenu = (struct menu *) item_data();
+		active_menu = (struct menu *)item_data();
+		if (!submenu || !menu_is_visible(submenu))
+			continue;
+		if (submenu)
+			sym = submenu->sym;
+		else
+			sym = NULL;
+
+		switch (res) {
+		case ' ':
+			if (item_is_tag('t'))
+				sym_toggle_tristate_value(sym);
+			else if (item_is_tag('m'))
+				conf(submenu);
+			break;
+		case KEY_RIGHT:
+		case 10: /* ENTER WAS PRESSED */
+			switch (item_tag()) {
+			case 'm':
+				if (single_menu_mode)
+					submenu->data =
+						(void *) (long) !submenu->data;
+				else
+					conf(submenu);
+				break;
+			case 't':
+				if (sym_is_choice(sym) &&
+				    sym_get_tristate_value(sym) == yes)
+					conf_choice(submenu);
+				else if (submenu->prompt &&
+					 submenu->prompt->type == P_MENU)
+					conf(submenu);
+				else if (res == 10)
+					sym_toggle_tristate_value(sym);
+				break;
+			case 's':
+				conf_string(submenu);
+				break;
+			}
+			break;
+		case 'y':
+			if (item_is_tag('t')) {
+				if (sym_set_tristate_value(sym, yes))
+					break;
+				if (sym_set_tristate_value(sym, mod))
+					btn_dialog(main_window, setmod_text, 0);
+			}
+			break;
+		case 'n':
+			if (item_is_tag('t'))
+				sym_set_tristate_value(sym, no);
+			break;
+		case 'm':
+			if (item_is_tag('t'))
+				sym_set_tristate_value(sym, mod);
+			break;
+		case '/':
+			search_conf();
+			break;
+		}
+	}
+}
+
+static void show_help(struct menu *menu)
+{
+	struct gstr help = str_new();
+
+	if (menu && menu->sym && menu_has_help(menu)) {
+		if (menu->sym->name) {
+			str_printf(&help, "CONFIG_%s:\n\n", menu->sym->name);
+			str_append(&help, _(menu_get_help(menu)));
+			str_append(&help, "\n");
+			get_symbol_str(&help, menu->sym);
+		}
+	} else {
+		str_append(&help, nohelp_text);
+	}
+	show_scroll_win(main_window, _(menu_get_prompt(menu)), str_get(&help));
+	str_free(&help);
+}
+
+static void conf_choice(struct menu *menu)
+{
+	const char *prompt = _(menu_get_prompt(menu));
+	struct menu *child = 0;
+	struct symbol *active;
+	int selected_index = 0;
+	int last_top_row = 0;
+	int res, i = 0;
+
+	active = sym_get_choice_value(menu->sym);
+	/* this is mostly duplicated from the conf() function. */
+	while (!global_exit) {
+		reset_menu();
+
+		for (i = 0, child = menu->list; child; child = child->next) {
+			if (!show_all_items && !menu_is_visible(child))
+				continue;
+
+			if (child->sym == sym_get_choice_value(menu->sym))
+				item_make(child, ':', "<X> %s",
+						_(menu_get_prompt(child)));
+			else
+				item_make(child, ':', "    %s",
+						_(menu_get_prompt(child)));
+			if (child->sym == active){
+				last_top_row = top_row(curses_menu);
+				selected_index = i;
+			}
+			i++;
+		}
+		show_menu(prompt ? _(prompt) : _("Choice Menu"),
+				_(radiolist_instructions),
+				selected_index,
+				&last_top_row);
+		while (!global_exit && (res = wgetch(menu_win(curses_menu)))) {
+			if (process_special_keys(
+						&res,
+						(struct menu *) item_data()))
+				break;
+			switch (res) {
+			case KEY_DOWN:
+				menu_driver(curses_menu, REQ_DOWN_ITEM);
+				break;
+			case KEY_UP:
+				menu_driver(curses_menu, REQ_UP_ITEM);
+				break;
+			case KEY_NPAGE:
+				menu_driver(curses_menu, REQ_SCR_DPAGE);
+				break;
+			case KEY_PPAGE:
+				menu_driver(curses_menu, REQ_SCR_UPAGE);
+				break;
+			case KEY_HOME:
+				menu_driver(curses_menu, REQ_FIRST_ITEM);
+				break;
+			case KEY_END:
+				menu_driver(curses_menu, REQ_LAST_ITEM);
+				break;
+			case 'h':
+			case '?':
+				show_help((struct menu *) item_data());
+				break;
+			}
+			if (res == 10 || res == 27 || res == ' ' ||
+				res == KEY_LEFT)
+				break;
+			else if (canbhot(res)) {
+				/* check for hot keys: */
+				int tmp = get_next_hot(res);
+				if (tmp != -1)
+					center_item(tmp, &last_top_row);
+			}
+			refresh_all_windows(main_window);
+		}
+		/* if ESC or left */
+		if (res == 27 || res == KEY_LEFT)
+			break;
+
+		child = item_data();
+		if (!child || !menu_is_visible(child))
+			continue;
+		switch (res) {
+		case ' ':
+		case  10:
+		case KEY_RIGHT:
+			sym_set_tristate_value(child->sym, yes);
+			return;
+		case 'h':
+		case '?':
+			show_help(child);
+			active = child->sym;
+			break;
+		case KEY_EXIT:
+			return;
+		}
+	}
+}
+
+static void conf_string(struct menu *menu)
+{
+	const char *prompt = menu_get_prompt(menu);
+	char dialog_input_result[256];
+
+	while (1) {
+		int res;
+		const char *heading;
+
+		switch (sym_get_type(menu->sym)) {
+		case S_INT:
+			heading = _(inputbox_instructions_int);
+			break;
+		case S_HEX:
+			heading = _(inputbox_instructions_hex);
+			break;
+		case S_STRING:
+			heading = _(inputbox_instructions_string);
+			break;
+		default:
+			heading = _("Internal nconf error!");
+		}
+		res = dialog_inputbox(main_window,
+				prompt ? _(prompt) : _("Main Menu"),
+				heading,
+				sym_get_string_value(menu->sym),
+				dialog_input_result,
+				sizeof(dialog_input_result));
+		switch (res) {
+		case 0:
+			if (sym_set_string_value(menu->sym,
+						dialog_input_result))
+				return;
+			btn_dialog(main_window,
+				_("You have made an invalid entry."), 0);
+			break;
+		case 1:
+			show_help(menu);
+			break;
+		case KEY_EXIT:
+			return;
+		}
+	}
+}
+
+static void conf_load(void)
+{
+	char dialog_input_result[256];
+	while (1) {
+		int res;
+		res = dialog_inputbox(main_window,
+				NULL, load_config_text,
+				filename,
+				dialog_input_result,
+				sizeof(dialog_input_result));
+		switch (res) {
+		case 0:
+			if (!dialog_input_result[0])
+				return;
+			if (!conf_read(dialog_input_result)) {
+				set_config_filename(dialog_input_result);
+				sym_set_change_count(1);
+				return;
+			}
+			btn_dialog(main_window, _("File does not exist!"), 0);
+			break;
+		case 1:
+			show_scroll_win(main_window,
+					_("Load Alternate Configuration"),
+					load_config_help);
+			break;
+		case KEY_EXIT:
+			return;
+		}
+	}
+}
+
+static void conf_save(void)
+{
+	char dialog_input_result[256];
+	while (1) {
+		int res;
+		res = dialog_inputbox(main_window,
+				NULL, save_config_text,
+				filename,
+				dialog_input_result,
+				sizeof(dialog_input_result));
+		switch (res) {
+		case 0:
+			if (!dialog_input_result[0])
+				return;
+			supress_stdout(0);
+			res = conf_write(dialog_input_result);
+			supress_stdout(1);
+			if (!res) {
+				char buf[1024];
+				sprintf(buf, "%s %s",
+					_("configuration file saved to: "),
+					dialog_input_result);
+				btn_dialog(main_window,
+					   buf, 1, "<OK>");
+				set_config_filename(dialog_input_result);
+				return;
+			}
+			btn_dialog(main_window, _("Can't create file! "
+				"Probably a nonexistent directory."),
+				1, "<OK>");
+			break;
+		case 1:
+			show_scroll_win(main_window,
+				_("Save Alternate Configuration"),
+				save_config_help);
+			break;
+		case KEY_EXIT:
+			return;
+		}
+	}
+}
+
+void setup_windows(void)
+{
+	if (main_window != NULL)
+		delwin(main_window);
+
+	/* set up the menu and menu window */
+	main_window = newwin(LINES-2, COLS-2, 2, 1);
+	keypad(main_window, TRUE);
+	mwin_max_lines = LINES-6;
+	mwin_max_cols = COLS-6;
+
+	/* panels order is from bottom to top */
+	new_panel(main_window);
+}
+
+int main(int ac, char **av)
+{
+	char *mode;
+
+	setlocale(LC_ALL, "");
+	bindtextdomain(PACKAGE, LOCALEDIR);
+	textdomain(PACKAGE);
+
+	conf_parse(av[1]);
+	conf_read(NULL);
+
+	mode = getenv("NCONFIG_MODE");
+	if (mode) {
+		if (!strcasecmp(mode, "single_menu"))
+			single_menu_mode = 1;
+	}
+
+	/* Initialize curses */
+	initscr();
+	/* set color theme */
+	set_colors();
+
+	cbreak();
+	noecho();
+	keypad(stdscr, TRUE);
+	curs_set(0);
+
+	if (COLS < 75 || LINES < 20) {
+		endwin();
+		printf("Your terminal should have at "
+			"least 20 lines and 75 columns\n");
+		return 1;
+	}
+
+	notimeout(stdscr, FALSE);
+	ESCDELAY = 1;
+
+	/* set btns menu */
+	curses_menu = new_menu(curses_menu_items);
+	menu_opts_off(curses_menu, O_SHOWDESC);
+	menu_opts_off(curses_menu, O_SHOWMATCH);
+	menu_opts_on(curses_menu, O_ONEVALUE);
+	menu_opts_on(curses_menu, O_NONCYCLIC);
+	set_menu_mark(curses_menu, " ");
+	set_menu_fore(curses_menu, attributes[MAIN_MENU_FORE]);
+	set_menu_back(curses_menu, attributes[MAIN_MENU_BACK]);
+	set_menu_grey(curses_menu, attributes[MAIN_MENU_GREY]);
+
+	set_config_filename(conf_get_configname());
+	setup_windows();
+
+	/* check for KEY_FUNC(1) */
+	if (has_key(KEY_F(1)) == FALSE) {
+		show_scroll_win(main_window,
+				_("Instructions"),
+				_(menu_no_f_instructions));
+	}
+
+
+
+	/* do the work */
+	while (!global_exit) {
+		conf(&rootmenu);
+		if (!global_exit && do_exit() == 0)
+			break;
+	}
+	/* ok, we are done */
+	unpost_menu(curses_menu);
+	free_menu(curses_menu);
+	delwin(main_window);
+	clear();
+	refresh();
+	endwin();
+	return 0;
+}
+
diff --git a/scripts/kconfig/nconf.gui.c b/scripts/kconfig/nconf.gui.c
new file mode 100644
index 0000000..879ade6
--- /dev/null
+++ b/scripts/kconfig/nconf.gui.c
@@ -0,0 +1,617 @@
+/*
+ * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Derived from menuconfig.
+ *
+ */
+#include "nconf.h"
+
+/* a list of all the different widgets we use */
+attributes_t attributes[ATTR_MAX+1] = {0};
+
+/* available colors:
+   COLOR_BLACK   0
+   COLOR_RED     1
+   COLOR_GREEN   2
+   COLOR_YELLOW  3
+   COLOR_BLUE    4
+   COLOR_MAGENTA 5
+   COLOR_CYAN    6
+   COLOR_WHITE   7
+   */
+void set_normal_colors(void)
+{
+	init_pair(NORMAL, -1, -1);
+	init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);
+
+	/* FORE is for the selected item */
+	init_pair(MAIN_MENU_FORE, -1, -1);
+	/* BACK for all the rest */
+	init_pair(MAIN_MENU_BACK, -1, -1);
+	init_pair(MAIN_MENU_GREY, -1, -1);
+	init_pair(MAIN_MENU_HEADING, COLOR_GREEN, -1);
+	init_pair(MAIN_MENU_BOX, COLOR_YELLOW, -1);
+
+	init_pair(SCROLLWIN_TEXT, -1, -1);
+	init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
+	init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);
+
+	init_pair(DIALOG_TEXT, -1, -1);
+	init_pair(DIALOG_BOX, COLOR_YELLOW, -1);
+	init_pair(DIALOG_MENU_BACK, COLOR_YELLOW, -1);
+	init_pair(DIALOG_MENU_FORE, COLOR_RED, -1);
+
+	init_pair(INPUT_BOX, COLOR_YELLOW, -1);
+	init_pair(INPUT_HEADING, COLOR_GREEN, -1);
+	init_pair(INPUT_TEXT, -1, -1);
+	init_pair(INPUT_FIELD, -1, -1);
+
+	init_pair(FUNCTION_HIGHLIGHT, -1, -1);
+	init_pair(FUNCTION_TEXT, COLOR_BLUE, -1);
+}
+
+/* available attributes:
+   A_NORMAL        Normal display (no highlight)
+   A_STANDOUT      Best highlighting mode of the terminal.
+   A_UNDERLINE     Underlining
+   A_REVERSE       Reverse video
+   A_BLINK         Blinking
+   A_DIM           Half bright
+   A_BOLD          Extra bright or bold
+   A_PROTECT       Protected mode
+   A_INVIS         Invisible or blank mode
+   A_ALTCHARSET    Alternate character set
+   A_CHARTEXT      Bit-mask to extract a character
+   COLOR_PAIR(n)   Color-pair number n
+   */
+void normal_color_theme(void)
+{
+	/* automatically add color... */
+#define mkattr(name, attr) do { \
+attributes[name] = attr | COLOR_PAIR(name); } while (0)
+	mkattr(NORMAL, NORMAL);
+	mkattr(MAIN_HEADING, A_BOLD | A_UNDERLINE);
+
+	mkattr(MAIN_MENU_FORE, A_REVERSE);
+	mkattr(MAIN_MENU_BACK, A_NORMAL);
+	mkattr(MAIN_MENU_GREY, A_NORMAL);
+	mkattr(MAIN_MENU_HEADING, A_BOLD);
+	mkattr(MAIN_MENU_BOX, A_NORMAL);
+
+	mkattr(SCROLLWIN_TEXT, A_NORMAL);
+	mkattr(SCROLLWIN_HEADING, A_BOLD);
+	mkattr(SCROLLWIN_BOX, A_BOLD);
+
+	mkattr(DIALOG_TEXT, A_BOLD);
+	mkattr(DIALOG_BOX, A_BOLD);
+	mkattr(DIALOG_MENU_FORE, A_STANDOUT);
+	mkattr(DIALOG_MENU_BACK, A_NORMAL);
+
+	mkattr(INPUT_BOX, A_NORMAL);
+	mkattr(INPUT_HEADING, A_BOLD);
+	mkattr(INPUT_TEXT, A_NORMAL);
+	mkattr(INPUT_FIELD, A_UNDERLINE);
+
+	mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
+	mkattr(FUNCTION_TEXT, A_REVERSE);
+}
+
+void no_colors_theme(void)
+{
+	/* automatically add highlight, no color */
+#define mkattrn(name, attr) { attributes[name] = attr; }
+
+	mkattrn(NORMAL, NORMAL);
+	mkattrn(MAIN_HEADING, A_BOLD | A_UNDERLINE);
+
+	mkattrn(MAIN_MENU_FORE, A_STANDOUT);
+	mkattrn(MAIN_MENU_BACK, A_NORMAL);
+	mkattrn(MAIN_MENU_GREY, A_NORMAL);
+	mkattrn(MAIN_MENU_HEADING, A_BOLD);
+	mkattrn(MAIN_MENU_BOX, A_NORMAL);
+
+	mkattrn(SCROLLWIN_TEXT, A_NORMAL);
+	mkattrn(SCROLLWIN_HEADING, A_BOLD);
+	mkattrn(SCROLLWIN_BOX, A_BOLD);
+
+	mkattrn(DIALOG_TEXT, A_NORMAL);
+	mkattrn(DIALOG_BOX, A_BOLD);
+	mkattrn(DIALOG_MENU_FORE, A_STANDOUT);
+	mkattrn(DIALOG_MENU_BACK, A_NORMAL);
+
+	mkattrn(INPUT_BOX, A_BOLD);
+	mkattrn(INPUT_HEADING, A_BOLD);
+	mkattrn(INPUT_TEXT, A_NORMAL);
+	mkattrn(INPUT_FIELD, A_UNDERLINE);
+
+	mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
+	mkattrn(FUNCTION_TEXT, A_REVERSE);
+}
+
+void set_colors()
+{
+	start_color();
+	use_default_colors();
+	set_normal_colors();
+	if (has_colors()) {
+		normal_color_theme();
+	} else {
+		/* give deafults */
+		no_colors_theme();
+	}
+}
+
+
+/* this changes the windows attributes !!! */
+void print_in_middle(WINDOW *win,
+		int starty,
+		int startx,
+		int width,
+		const char *string,
+		chtype color)
+{      int length, x, y;
+	float temp;
+
+
+	if (win == NULL)
+		win = stdscr;
+	getyx(win, y, x);
+	if (startx != 0)
+		x = startx;
+	if (starty != 0)
+		y = starty;
+	if (width == 0)
+		width = 80;
+
+	length = strlen(string);
+	temp = (width - length) / 2;
+	x = startx + (int)temp;
+	wattrset(win, color);
+	mvwprintw(win, y, x, "%s", string);
+	refresh();
+}
+
+int get_line_no(const char *text)
+{
+	int i;
+	int total = 1;
+
+	if (!text)
+		return 0;
+
+	for (i = 0; text[i] != '\0'; i++)
+		if (text[i] == '\n')
+			total++;
+	return total;
+}
+
+const char *get_line(const char *text, int line_no)
+{
+	int i;
+	int lines = 0;
+
+	if (!text)
+		return 0;
+
+	for (i = 0; text[i] != '\0' && lines < line_no; i++)
+		if (text[i] == '\n')
+			lines++;
+	return text+i;
+}
+
+int get_line_length(const char *line)
+{
+	int res = 0;
+	while (*line != '\0' && *line != '\n') {
+		line++;
+		res++;
+	}
+	return res;
+}
+
+/* print all lines to the window. */
+void fill_window(WINDOW *win, const char *text)
+{
+	int x, y;
+	int total_lines = get_line_no(text);
+	int i;
+
+	getmaxyx(win, y, x);
+	/* do not go over end of line */
+	total_lines = min(total_lines, y);
+	for (i = 0; i < total_lines; i++) {
+		char tmp[x+10];
+		const char *line = get_line(text, i);
+		int len = get_line_length(line);
+		strncpy(tmp, line, min(len, x));
+		tmp[len] = '\0';
+		mvwprintw(win, i, 0, tmp);
+	}
+}
+
+/* get the message, and buttons.
+ * each button must be a char*
+ * return the selected button
+ *
+ * this dialog is used for 2 different things:
+ * 1) show a text box, no buttons.
+ * 2) show a dialog, with horizontal buttons
+ */
+int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...)
+{
+	va_list ap;
+	char *btn;
+	int btns_width = 0;
+	int msg_lines = 0;
+	int msg_width = 0;
+	int total_width;
+	int win_rows = 0;
+	WINDOW *win;
+	WINDOW *msg_win;
+	WINDOW *menu_win;
+	MENU *menu;
+	ITEM *btns[btn_num+1];
+	int i, x, y;
+	int res = -1;
+
+
+	va_start(ap, btn_num);
+	for (i = 0; i < btn_num; i++) {
+		btn = va_arg(ap, char *);
+		btns[i] = new_item(btn, "");
+		btns_width += strlen(btn)+1;
+	}
+	va_end(ap);
+	btns[btn_num] = NULL;
+
+	/* find the widest line of msg: */
+	msg_lines = get_line_no(msg);
+	for (i = 0; i < msg_lines; i++) {
+		const char *line = get_line(msg, i);
+		int len = get_line_length(line);
+		if (msg_width < len)
+			msg_width = len;
+	}
+
+	total_width = max(msg_width, btns_width);
+	/* place dialog in middle of screen */
+	y = (LINES-(msg_lines+4))/2;
+	x = (COLS-(total_width+4))/2;
+
+
+	/* create the windows */
+	if (btn_num > 0)
+		win_rows = msg_lines+4;
+	else
+		win_rows = msg_lines+2;
+
+	win = newwin(win_rows, total_width+4, y, x);
+	keypad(win, TRUE);
+	menu_win = derwin(win, 1, btns_width, win_rows-2,
+			1+(total_width+2-btns_width)/2);
+	menu = new_menu(btns);
+	msg_win = derwin(win, win_rows-2, msg_width, 1,
+			1+(total_width+2-msg_width)/2);
+
+	set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
+	set_menu_back(menu, attributes[DIALOG_MENU_BACK]);
+
+	wattrset(win, attributes[DIALOG_BOX]);
+	box(win, 0, 0);
+
+	/* print message */
+	wattrset(msg_win, attributes[DIALOG_TEXT]);
+	fill_window(msg_win, msg);
+
+	set_menu_win(menu, win);
+	set_menu_sub(menu, menu_win);
+	set_menu_format(menu, 1, btn_num);
+	menu_opts_off(menu, O_SHOWDESC);
+	menu_opts_off(menu, O_SHOWMATCH);
+	menu_opts_on(menu, O_ONEVALUE);
+	menu_opts_on(menu, O_NONCYCLIC);
+	set_menu_mark(menu, "");
+	post_menu(menu);
+
+
+	touchwin(win);
+	refresh_all_windows(main_window);
+	while ((res = wgetch(win))) {
+		switch (res) {
+		case KEY_LEFT:
+			menu_driver(menu, REQ_LEFT_ITEM);
+			break;
+		case KEY_RIGHT:
+			menu_driver(menu, REQ_RIGHT_ITEM);
+			break;
+		case 10: /* ENTER */
+		case 27: /* ESCAPE */
+		case ' ':
+		case KEY_F(F_BACK):
+		case KEY_F(F_EXIT):
+			break;
+		}
+		touchwin(win);
+		refresh_all_windows(main_window);
+
+		if (res == 10 || res == ' ') {
+			res = item_index(current_item(menu));
+			break;
+		} else if (res == 27 || res == KEY_F(F_BACK) ||
+				res == KEY_F(F_EXIT)) {
+			res = KEY_EXIT;
+			break;
+		}
+	}
+
+	unpost_menu(menu);
+	free_menu(menu);
+	for (i = 0; i < btn_num; i++)
+		free_item(btns[i]);
+
+	delwin(win);
+	return res;
+}
+
+int dialog_inputbox(WINDOW *main_window,
+		const char *title, const char *prompt,
+		const char *init, char *result, int result_len)
+{
+	int prompt_lines = 0;
+	int prompt_width = 0;
+	WINDOW *win;
+	WINDOW *prompt_win;
+	WINDOW *form_win;
+	PANEL *panel;
+	int i, x, y;
+	int res = -1;
+	int cursor_position = strlen(init);
+
+
+	/* find the widest line of msg: */
+	prompt_lines = get_line_no(prompt);
+	for (i = 0; i < prompt_lines; i++) {
+		const char *line = get_line(prompt, i);
+		int len = get_line_length(line);
+		prompt_width = max(prompt_width, len);
+	}
+
+	if (title)
+		prompt_width = max(prompt_width, strlen(title));
+
+	/* place dialog in middle of screen */
+	y = (LINES-(prompt_lines+4))/2;
+	x = (COLS-(prompt_width+4))/2;
+
+	strncpy(result, init, result_len);
+
+	/* create the windows */
+	win = newwin(prompt_lines+6, prompt_width+7, y, x);
+	prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
+	form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
+	keypad(form_win, TRUE);
+
+	wattrset(form_win, attributes[INPUT_FIELD]);
+
+	wattrset(win, attributes[INPUT_BOX]);
+	box(win, 0, 0);
+	wattrset(win, attributes[INPUT_HEADING]);
+	if (title)
+		mvwprintw(win, 0, 3, "%s", title);
+
+	/* print message */
+	wattrset(prompt_win, attributes[INPUT_TEXT]);
+	fill_window(prompt_win, prompt);
+
+	mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
+	mvwprintw(form_win, 0, 0, "%s", result);
+
+	/* create panels */
+	panel = new_panel(win);
+
+	/* show the cursor */
+	curs_set(1);
+
+	touchwin(win);
+	refresh_all_windows(main_window);
+	while ((res = wgetch(form_win))) {
+		int len = strlen(result);
+		switch (res) {
+		case 10: /* ENTER */
+		case 27: /* ESCAPE */
+		case KEY_F(F_HELP):
+		case KEY_F(F_EXIT):
+		case KEY_F(F_BACK):
+			break;
+		case 127:
+		case KEY_BACKSPACE:
+			if (cursor_position > 0) {
+				memmove(&result[cursor_position-1],
+						&result[cursor_position],
+						len-cursor_position+1);
+				cursor_position--;
+			}
+			break;
+		case KEY_DC:
+			if (cursor_position >= 0 && cursor_position < len) {
+				memmove(&result[cursor_position],
+						&result[cursor_position+1],
+						len-cursor_position+1);
+			}
+			break;
+		case KEY_UP:
+		case KEY_RIGHT:
+			if (cursor_position < len &&
+			    cursor_position < min(result_len, prompt_width))
+				cursor_position++;
+			break;
+		case KEY_DOWN:
+		case KEY_LEFT:
+			if (cursor_position > 0)
+				cursor_position--;
+			break;
+		default:
+			if ((isgraph(res) || isspace(res)) &&
+					len-2 < result_len) {
+				/* insert the char at the proper position */
+				memmove(&result[cursor_position+1],
+						&result[cursor_position],
+						len+1);
+				result[cursor_position] = res;
+				cursor_position++;
+			} else {
+				mvprintw(0, 0, "unknow key: %d\n", res);
+			}
+			break;
+		}
+		wmove(form_win, 0, 0);
+		wclrtoeol(form_win);
+		mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
+		mvwprintw(form_win, 0, 0, "%s", result);
+		wmove(form_win, 0, cursor_position);
+		touchwin(win);
+		refresh_all_windows(main_window);
+
+		if (res == 10) {
+			res = 0;
+			break;
+		} else if (res == 27 || res == KEY_F(F_BACK) ||
+				res == KEY_F(F_EXIT)) {
+			res = KEY_EXIT;
+			break;
+		} else if (res == KEY_F(F_HELP)) {
+			res = 1;
+			break;
+		}
+	}
+
+	/* hide the cursor */
+	curs_set(0);
+	del_panel(panel);
+	delwin(prompt_win);
+	delwin(form_win);
+	delwin(win);
+	return res;
+}
+
+/* refresh all windows in the correct order */
+void refresh_all_windows(WINDOW *main_window)
+{
+	update_panels();
+	touchwin(main_window);
+	refresh();
+}
+
+/* layman's scrollable window... */
+void show_scroll_win(WINDOW *main_window,
+		const char *title,
+		const char *text)
+{
+	int res;
+	int total_lines = get_line_no(text);
+	int x, y;
+	int start_x = 0, start_y = 0;
+	int text_lines = 0, text_cols = 0;
+	int total_cols = 0;
+	int win_cols = 0;
+	int win_lines = 0;
+	int i = 0;
+	WINDOW *win;
+	WINDOW *pad;
+	PANEL *panel;
+
+	/* find the widest line of msg: */
+	total_lines = get_line_no(text);
+	for (i = 0; i < total_lines; i++) {
+		const char *line = get_line(text, i);
+		int len = get_line_length(line);
+		total_cols = max(total_cols, len+2);
+	}
+
+	/* create the pad */
+	pad = newpad(total_lines+10, total_cols+10);
+	wattrset(pad, attributes[SCROLLWIN_TEXT]);
+	fill_window(pad, text);
+
+	win_lines = min(total_lines+4, LINES-2);
+	win_cols = min(total_cols+2, COLS-2);
+	text_lines = max(win_lines-4, 0);
+	text_cols = max(win_cols-2, 0);
+
+	/* place window in middle of screen */
+	y = (LINES-win_lines)/2;
+	x = (COLS-win_cols)/2;
+
+	win = newwin(win_lines, win_cols, y, x);
+	keypad(win, TRUE);
+	/* show the help in the help window, and show the help panel */
+	wattrset(win, attributes[SCROLLWIN_BOX]);
+	box(win, 0, 0);
+	wattrset(win, attributes[SCROLLWIN_HEADING]);
+	mvwprintw(win, 0, 3, " %s ", title);
+	panel = new_panel(win);
+
+	/* handle scrolling */
+	do {
+
+		copywin(pad, win, start_y, start_x, 2, 2, text_lines,
+				text_cols, 0);
+		print_in_middle(win,
+				text_lines+2,
+				0,
+				text_cols,
+				"<OK>",
+				attributes[DIALOG_MENU_FORE]);
+		wrefresh(win);
+
+		res = wgetch(win);
+		switch (res) {
+		case KEY_NPAGE:
+		case ' ':
+			start_y += text_lines-2;
+			break;
+		case KEY_PPAGE:
+			start_y -= text_lines+2;
+			break;
+		case KEY_HOME:
+			start_y = 0;
+			break;
+		case KEY_END:
+			start_y = total_lines-text_lines;
+			break;
+		case KEY_DOWN:
+		case 'j':
+			start_y++;
+			break;
+		case KEY_UP:
+		case 'k':
+			start_y--;
+			break;
+		case KEY_LEFT:
+		case 'h':
+			start_x--;
+			break;
+		case KEY_RIGHT:
+		case 'l':
+			start_x++;
+			break;
+		}
+		if (res == 10 || res == 27 || res == 'q'
+		    || res == KEY_F(F_BACK) || res == KEY_F(F_EXIT)) {
+			break;
+		}
+		if (start_y < 0)
+			start_y = 0;
+		if (start_y >= total_lines-text_lines)
+			start_y = total_lines-text_lines;
+		if (start_x < 0)
+			start_x = 0;
+		if (start_x >= total_cols-text_cols)
+			start_x = total_cols-text_cols;
+	} while (res);
+
+	del_panel(panel);
+	delwin(win);
+	refresh_all_windows(main_window);
+}
diff --git a/scripts/kconfig/nconf.h b/scripts/kconfig/nconf.h
new file mode 100644
index 0000000..fb42966
--- /dev/null
+++ b/scripts/kconfig/nconf.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Derived from menuconfig.
+ *
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <locale.h>
+#include <curses.h>
+#include <menu.h>
+#include <panel.h>
+#include <form.h>
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+
+#include "ncurses.h"
+
+#define max(a, b) ({\
+		typeof(a) _a = a;\
+		typeof(b) _b = b;\
+		_a > _b ? _a : _b; })
+
+#define min(a, b) ({\
+		typeof(a) _a = a;\
+		typeof(b) _b = b;\
+		_a < _b ? _a : _b; })
+
+typedef enum {
+	NORMAL = 1,
+	MAIN_HEADING,
+	MAIN_MENU_BOX,
+	MAIN_MENU_FORE,
+	MAIN_MENU_BACK,
+	MAIN_MENU_GREY,
+	MAIN_MENU_HEADING,
+	SCROLLWIN_TEXT,
+	SCROLLWIN_HEADING,
+	SCROLLWIN_BOX,
+	DIALOG_TEXT,
+	DIALOG_MENU_FORE,
+	DIALOG_MENU_BACK,
+	DIALOG_BOX,
+	INPUT_BOX,
+	INPUT_HEADING,
+	INPUT_TEXT,
+	INPUT_FIELD,
+	FUNCTION_TEXT,
+	FUNCTION_HIGHLIGHT,
+	ATTR_MAX
+} attributes_t;
+extern attributes_t attributes[];
+
+typedef enum {
+	F_HELP = 1,
+	F_SYMBOL = 2,
+	F_INSTS = 3,
+	F_CONF = 4,
+	F_BACK = 5,
+	F_SAVE = 6,
+	F_LOAD = 7,
+	F_EXIT = 8
+} function_key;
+
+void set_colors(void);
+
+/* this changes the windows attributes !!! */
+void print_in_middle(WINDOW *win,
+		int starty,
+		int startx,
+		int width,
+		const char *string,
+		chtype color);
+int get_line_length(const char *line);
+int get_line_no(const char *text);
+const char *get_line(const char *text, int line_no);
+void fill_window(WINDOW *win, const char *text);
+int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...);
+int dialog_inputbox(WINDOW *main_window,
+		const char *title, const char *prompt,
+		const char *init, char *result, int result_len);
+void refresh_all_windows(WINDOW *main_window);
+void show_scroll_win(WINDOW *main_window,
+		const char *title,
+		const char *text);
diff --git a/scripts/kconfig/zconf.tab.c_shipped b/scripts/kconfig/zconf.tab.c_shipped
index 6e9dcd5..8a0867a 100644
--- a/scripts/kconfig/zconf.tab.c_shipped
+++ b/scripts/kconfig/zconf.tab.c_shipped
@@ -2220,7 +2220,7 @@ void conf_parse(const char *name)
 	zconf_initscan(name);
 
 	sym_init();
-	menu_init();
+	_menu_init();
 	modules_sym = sym_lookup(NULL, 0);
 	modules_sym->type = S_BOOLEAN;
 	modules_sym->flags |= SYMBOL_AUTO;
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 8c43491..361b543 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -475,7 +475,7 @@ void conf_parse(const char *name)
 	zconf_initscan(name);
 
 	sym_init();
-	menu_init();
+	_menu_init();
 	modules_sym = sym_lookup(NULL, 0);
 	modules_sym->type = S_BOOLEAN;
 	modules_sym->flags |= SYMBOL_AUTO;