28 files changed, 657 insertions, 569 deletions

diff --git a/scripts/kconfig/.gitignore b/scripts/kconfig/.gitignore
index 624f6502e03..be603c4fef6 100644
--- a/scripts/kconfig/.gitignore
+++ b/scripts/kconfig/.gitignore
@@ -2,12 +2,11 @@
 # Generated files
 #
 config*
-lex.*.c
+*.lex.c
 *.tab.c
 *.tab.h
 zconf.hash.c
 *.moc
-lkc_defs.h
 gconf.glade.h
 *.pot
 *.mo
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index faa9a4701b6..82d2eb285b7 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -170,8 +170,8 @@ 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
 qconf-cxxobjs   := qconf.o
-qconf-objs      := kconfig_load.o zconf.tab.o
-gconf-objs      := gconf.o kconfig_load.o zconf.tab.o
+qconf-objs      := zconf.tab.o
+gconf-objs      := gconf.o zconf.tab.o
 
 hostprogs-y := conf
 
@@ -203,8 +203,8 @@ ifeq ($(gconf-target),1)
         hostprogs-y += gconf
 endif
 
-clean-files     := lkc_defs.h qconf.moc .tmp_qtcheck .tmp_gtkcheck
-clean-files     += zconf.tab.c lex.zconf.c zconf.hash.c gconf.glade.h
+clean-files     := qconf.moc .tmp_qtcheck .tmp_gtkcheck
+clean-files     += zconf.tab.c zconf.lex.c zconf.hash.c gconf.glade.h
 clean-files     += mconf qconf gconf nconf
 clean-files     += config.pot linux.pot
 
@@ -220,15 +220,18 @@ always := dochecklxdialog
 HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC) $(HOSTCFLAGS))
 
 # generated files seem to need this to find local include files
-HOSTCFLAGS_lex.zconf.o  := -I$(src)
+HOSTCFLAGS_zconf.lex.o  := -I$(src)
 HOSTCFLAGS_zconf.tab.o  := -I$(src)
 
-HOSTLOADLIBES_qconf     = $(KC_QT_LIBS) -ldl
-HOSTCXXFLAGS_qconf.o    = $(KC_QT_CFLAGS) -D LKC_DIRECT_LINK
+LEX_PREFIX_zconf        := zconf
+YACC_PREFIX_zconf       := zconf
 
-HOSTLOADLIBES_gconf     = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0` -ldl
+HOSTLOADLIBES_qconf     = $(KC_QT_LIBS)
+HOSTCXXFLAGS_qconf.o    = $(KC_QT_CFLAGS)
+
+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
+                          -Wno-missing-prototypes
 
 HOSTLOADLIBES_mconf   = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
 
@@ -316,47 +319,15 @@ $(obj)/.tmp_gtkcheck:
         fi
 endif
 
-$(obj)/zconf.tab.o: $(obj)/lex.zconf.c $(obj)/zconf.hash.c
-
-$(obj)/kconfig_load.o: $(obj)/lkc_defs.h
-
-$(obj)/qconf.o: $(obj)/qconf.moc $(obj)/lkc_defs.h
+$(obj)/zconf.tab.o: $(obj)/zconf.lex.c $(obj)/zconf.hash.c
 
-$(obj)/gconf.o: $(obj)/lkc_defs.h
+$(obj)/qconf.o: $(obj)/qconf.moc
 
 $(obj)/%.moc: $(src)/%.h
         $(KC_QT_MOC) -i $< -o $@
 
-$(obj)/lkc_defs.h: $(src)/lkc_proto.h
-        $(Q)sed < $< > $@ 's/P(\([^,]*\),.*/#define \1 (\*\1_p)/'
-
 # Extract gconf menu items for I18N support
 $(obj)/gconf.glade.h: $(obj)/gconf.glade
         $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \
         $(obj)/gconf.glade
 
-###
-# The following requires flex/bison/gperf
-# By default we use the _shipped versions, uncomment the following line if
-# you are modifying the flex/bison src.
-# LKC_GENPARSER := 1
-
-ifdef LKC_GENPARSER
-
-$(obj)/zconf.tab.c: $(src)/zconf.y
-$(obj)/lex.zconf.c: $(src)/zconf.l
-$(obj)/zconf.hash.c: $(src)/zconf.gperf
-
-%.tab.c: %.y
-        bison -l -b $* -p $(notdir $*) $<
-        cp $@ $@_shipped
-
-lex.%.c: %.l
-        flex -L -P$(notdir $*) -o$@ $<
-        cp $@ $@_shipped
-
-%.hash.c: %.gperf
-        gperf < $< > $@
-        cp $@ $@_shipped
-
-endif
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 006ad817cd5..f208f900ed3 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -14,11 +14,11 @@
 #include <sys/stat.h>
 #include <sys/time.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 static void conf(struct menu *menu);
 static void check_conf(struct menu *menu);
+static void xfgets(char *str, int size, FILE *in);
 
 enum input_mode {
         oldaskconfig,
@@ -35,8 +35,6 @@ enum input_mode {
         oldnoconfig,
 } input_mode = oldaskconfig;
 
-char *defconfig_file;
-
 static int indent = 1;
 static int valid_stdin = 1;
 static int sync_kconfig;
@@ -106,6 +104,7 @@ static int conf_askvalue(struct symbol *sym, const char *def)
                         return 0;
                 }
                 check_stdin();
+                /* fall through */
         case oldaskconfig:
                 fflush(stdout);
                 xfgets(line, 128, stdin);
@@ -150,6 +149,7 @@ static int conf_string(struct menu *menu)
                                 def = NULL;
                                 break;
                         }
+                        /* fall through */
                 default:
                         line[strlen(line)-1] = 0;
                         def = line;
@@ -304,6 +304,7 @@ static int conf_choice(struct menu *menu)
                                 break;
                         }
                         check_stdin();
+                        /* fall through */
                 case oldaskconfig:
                         fflush(stdout);
                         xfgets(line, 128, stdin);
@@ -369,6 +370,7 @@ static void conf(struct menu *menu)
                                 check_conf(menu);
                                 return;
                         }
+                        /* fall through */
                 case P_COMMENT:
                         prompt = menu_get_prompt(menu);
                         if (prompt)
@@ -456,10 +458,30 @@ static struct option long_opts[] = {
         {NULL, 0, NULL, 0}
 };
 
+static void conf_usage(const char *progname)
+{
+
+        printf("Usage: %s [option] <kconfig-file>\n", progname);
+        printf("[option] is _one_ of the following:\n");
+        printf("  --listnewconfig         List new options\n");
+        printf("  --oldaskconfig          Start a new configuration using a line-oriented program\n");
+        printf("  --oldconfig             Update a configuration using a provided .config as base\n");
+        printf("  --silentoldconfig       Same as oldconfig, but quietly, additionally update deps\n");
+        printf("  --oldnoconfig           Same as silentoldconfig but set new symbols to no\n");
+        printf("  --defconfig <file>      New config with default defined in <file>\n");
+        printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
+        printf("  --allnoconfig           New config where all options are answered with no\n");
+        printf("  --allyesconfig          New config where all options are answered with yes\n");
+        printf("  --allmodconfig          New config where all options are answered with mod\n");
+        printf("  --alldefconfig          New config with all symbols set to default\n");
+        printf("  --randconfig            New config with random answer to all options\n");
+}
+
 int main(int ac, char **av)
 {
+        const char *progname = av[0];
         int opt;
-        const char *name;
+        const char *name, *defconfig_file = NULL /* gcc uninit */;
         struct stat tmpstat;
 
         setlocale(LC_ALL, "");
@@ -491,14 +513,24 @@ int main(int ac, char **av)
                         srand(seed);
                         break;
                 }
+                case oldaskconfig:
+                case oldconfig:
+                case allnoconfig:
+                case allyesconfig:
+                case allmodconfig:
+                case alldefconfig:
+                case listnewconfig:
+                case oldnoconfig:
+                        break;
                 case '?':
-                        fprintf(stderr, _("See README for usage info\n"));
+                        conf_usage(progname);
                         exit(1);
                         break;
                 }
         }
         if (ac == optind) {
                 printf(_("%s: Kconfig file missing\n"), av[0]);
+                conf_usage(progname);
                 exit(1);
         }
         name = av[optind];
@@ -641,13 +673,11 @@ int main(int ac, char **av)
         }
         return 0;
 }
+
 /*
  * Helper function to facilitate fgets() by Jean Sacren.
  */
-void xfgets(str, size, in)
-        char *str;
-        int size;
-        FILE *in;
+void xfgets(char *str, int size, FILE *in)
 {
         if (fgets(str, size, in) == NULL)
                 fprintf(stderr, "\nError in reading or end of file.\n");
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 2bafd9a7c8d..59b667cae5f 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -7,13 +7,13 @@
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 static void conf_warning(const char *fmt, ...)
@@ -128,6 +128,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
                         sym->flags |= def_flags;
                         break;
                 }
+                /* fall through */
         case S_BOOLEAN:
                 if (p[0] == 'y') {
                         sym->def[def].tri = yes;
@@ -140,7 +141,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
                         break;
                 }
                 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
-                break;
+                return 1;
         case S_OTHER:
                 if (*p != '"') {
                         for (p2 = p; *p2 && !isspace(*p2); p2++)
@@ -148,6 +149,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
                         sym->type = S_STRING;
                         goto done;
                 }
+                /* fall through */
         case S_STRING:
                 if (*p++ != '"')
                         break;
@@ -162,6 +164,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
                         conf_warning("invalid string found");
                         return 1;
                 }
+                /* fall through */
         case S_INT:
         case S_HEX:
         done:
@@ -237,6 +240,7 @@ load:
                 case S_STRING:
                         if (sym->def[def].val)
                                 free(sym->def[def].val);
+                        /* fall through */
                 default:
                         sym->def[def].val = NULL;
                         sym->def[def].tri = no;
@@ -363,6 +367,7 @@ int conf_read(const char *name)
                                         break;
                                 if (!sym_is_choice(sym))
                                         goto sym_ok;
+                                /* fall through */
                         default:
                                 if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
                                         goto sym_ok;
@@ -417,64 +422,202 @@ int conf_read(const char *name)
         return 0;
 }
 
-/* Write a S_STRING */
-static void conf_write_string(bool headerfile, const char *name,
-                              const char *str, FILE *out)
+/*
+ * Kconfig configuration printer
+ *
+ * This printer is used when generating the resulting configuration after
+ * kconfig invocation and `defconfig' files. Unset symbol might be omitted by
+ * passing a non-NULL argument to the printer.
+ *
+ */
+static void
+kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
 {
-        int l;
-        if (headerfile)
-                fprintf(out, "#define %s%s \"", CONFIG_, name);
-        else
-                fprintf(out, "%s%s=\"", CONFIG_, name);
-
-        while (1) {
-                l = strcspn(str, "\"\\");
+
+        switch (sym->type) {
+        case S_BOOLEAN:
+        case S_TRISTATE:
+                if (*value == 'n') {
+                        bool skip_unset = (arg != NULL);
+
+                        if (!skip_unset)
+                                fprintf(fp, "# %s%s is not set\n",
+                                    CONFIG_, sym->name);
+                        return;
+                }
+                break;
+        default:
+                break;
+        }
+
+        fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
+}
+
+static void
+kconfig_print_comment(FILE *fp, const char *value, void *arg)
+{
+        const char *p = value;
+        size_t l;
+
+        for (;;) {
+                l = strcspn(p, "\n");
+                fprintf(fp, "#");
                 if (l) {
-                        xfwrite(str, l, 1, out);
-                        str += l;
+                        fprintf(fp, " ");
+                        fwrite(p, l, 1, fp);
+                        p += l;
                 }
-                if (!*str)
+                fprintf(fp, "\n");
+                if (*p++ == '\0')
                         break;
-                fprintf(out, "\\%c", *str++);
         }
-        fputs("\"\n", out);
 }
 
-static void conf_write_symbol(struct symbol *sym, FILE *out, bool write_no)
+static struct conf_printer kconfig_printer_cb =
+{
+        .print_symbol = kconfig_print_symbol,
+        .print_comment = kconfig_print_comment,
+};
+
+/*
+ * Header printer
+ *
+ * This printer is used when generating the `include/generated/autoconf.h' file.
+ */
+static void
+header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
 {
-        const char *str;
 
         switch (sym->type) {
         case S_BOOLEAN:
-        case S_TRISTATE:
-                switch (sym_get_tristate_value(sym)) {
-                case no:
-                        if (write_no)
-                                fprintf(out, "# %s%s is not set\n",
-                                    CONFIG_, sym->name);
-                        break;
-                case mod:
-                        fprintf(out, "%s%s=m\n", CONFIG_, sym->name);
-                        break;
-                case yes:
-                        fprintf(out, "%s%s=y\n", CONFIG_, sym->name);
+        case S_TRISTATE: {
+                const char *suffix = "";
+
+                switch (*value) {
+                case 'n':
                         break;
+                case 'm':
+                        suffix = "_MODULE";
+                        /* fall through */
+                default:
+                        fprintf(fp, "#define %s%s%s 1\n",
+                            CONFIG_, sym->name, suffix);
                 }
+                /*
+                 * Generate the __enabled_CONFIG_* and
+                 * __enabled_CONFIG_*_MODULE macros for use by the
+                 * IS_{ENABLED,BUILTIN,MODULE} macros. The _MODULE variant is
+                 * generated even for booleans so that the IS_ENABLED() macro
+                 * works.
+                 */
+                fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n",
+                                sym->name, (*value == 'y'));
+                fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n",
+                                sym->name, (*value == 'm'));
                 break;
-        case S_STRING:
-                conf_write_string(false, sym->name, sym_get_string_value(sym), out);
+        }
+        case S_HEX: {
+                const char *prefix = "";
+
+                if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
+                        prefix = "0x";
+                fprintf(fp, "#define %s%s %s%s\n",
+                    CONFIG_, sym->name, prefix, value);
                 break;
-        case S_HEX:
+        }
+        case S_STRING:
         case S_INT:
-                str = sym_get_string_value(sym);
-                fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str);
+                fprintf(fp, "#define %s%s %s\n",
+                    CONFIG_, sym->name, value);
+                break;
+        default:
                 break;
+        }
+
+}
+
+static void
+header_print_comment(FILE *fp, const char *value, void *arg)
+{
+        const char *p = value;
+        size_t l;
+
+        fprintf(fp, "/*\n");
+        for (;;) {
+                l = strcspn(p, "\n");
+                fprintf(fp, " *");
+                if (l) {
+                        fprintf(fp, " ");
+                        fwrite(p, l, 1, fp);
+                        p += l;
+                }
+                fprintf(fp, "\n");
+                if (*p++ == '\0')
+                        break;
+        }
+        fprintf(fp, " */\n");
+}
+
+static struct conf_printer header_printer_cb =
+{
+        .print_symbol = header_print_symbol,
+        .print_comment = header_print_comment,
+};
+
+/*
+ * Tristate printer
+ *
+ * This printer is used when generating the `include/config/tristate.conf' file.
+ */
+static void
+tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+        if (sym->type == S_TRISTATE && *value != 'n')
+                fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
+}
+
+static struct conf_printer tristate_printer_cb =
+{
+        .print_symbol = tristate_print_symbol,
+        .print_comment = kconfig_print_comment,
+};
+
+static void conf_write_symbol(FILE *fp, struct symbol *sym,
+                              struct conf_printer *printer, void *printer_arg)
+{
+        const char *str;
+
+        switch (sym->type) {
         case S_OTHER:
         case S_UNKNOWN:
                 break;
+        case S_STRING:
+                str = sym_get_string_value(sym);
+                str = sym_escape_string_value(str);
+                printer->print_symbol(fp, sym, str, printer_arg);
+                free((void *)str);
+                break;
+        default:
+                str = sym_get_string_value(sym);
+                printer->print_symbol(fp, sym, str, printer_arg);
         }
 }
 
+static void
+conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
+{
+        char buf[256];
+
+        snprintf(buf, sizeof(buf),
+            "\n"
+            "Automatically generated file; DO NOT EDIT.\n"
+            "%s\n",
+            rootmenu.prompt->text);
+
+        printer->print_comment(fp, buf, printer_arg);
+}
+
 /*
  * Write out a minimal config.
  * All values that has default values are skipped as this is redundant.
@@ -531,7 +674,7 @@ int conf_write_defconfig(const char *filename)
                                                 goto next_menu;
                                 }
                         }
-                        conf_write_symbol(sym, out, true);
+                        conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
                 }
 next_menu:
                 if (menu->list != NULL) {
@@ -596,11 +739,7 @@ int conf_write(const char *name)
         if (!out)
                 return 1;
 
-        fprintf(out, _("#\n"
-                       "# Automatically generated make config: don't edit\n"
-                       "# %s\n"
-                       "#\n"),
-                     rootmenu.prompt->text);
+        conf_write_heading(out, &kconfig_printer_cb, NULL);
 
         if (!conf_get_changed())
                 sym_clear_all_valid();
@@ -621,8 +760,8 @@ int conf_write(const char *name)
                         if (!(sym->flags & SYMBOL_WRITE))
                                 goto next;
                         sym->flags &= ~SYMBOL_WRITE;
-                        /* Write config symbol to file */
-                        conf_write_symbol(sym, out, true);
+
+                        conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
                 }
 
 next:
@@ -771,7 +910,6 @@ out:
 int conf_write_autoconf(void)
 {
         struct symbol *sym;
-        const char *str;
         const char *name;
         FILE *out, *tristate, *out_h;
         int i;
@@ -800,68 +938,23 @@ int conf_write_autoconf(void)
                 return 1;
         }
 
-        fprintf(out, "#\n"
-                     "# Automatically generated make config: don't edit\n"
-                     "# %s\n"
-                     "#\n",
-                     rootmenu.prompt->text);
-        fprintf(tristate, "#\n"
-                          "# Automatically generated - do not edit\n"
-                          "\n");
-        fprintf(out_h, "/*\n"
-                       " * Automatically generated C config: don't edit\n"
-                       " * %s\n"
-                       " */\n",
-                       rootmenu.prompt->text);
+        conf_write_heading(out, &kconfig_printer_cb, NULL);
+
+        conf_write_heading(tristate, &tristate_printer_cb, NULL);
+
+        conf_write_heading(out_h, &header_printer_cb, NULL);
 
         for_all_symbols(i, sym) {
                 sym_calc_value(sym);
                 if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
                         continue;
 
-                /* write symbol to config file */
-                conf_write_symbol(sym, out, false);
+                /* write symbol to auto.conf, tristate and header files */
+                conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
 
-                /* update autoconf and tristate files */
-                switch (sym->type) {
-                case S_BOOLEAN:
-                case S_TRISTATE:
-                        switch (sym_get_tristate_value(sym)) {
-                        case no:
-                                break;
-                        case mod:
-                                fprintf(tristate, "%s%s=M\n",
-                                    CONFIG_, sym->name);
-                                fprintf(out_h, "#define %s%s_MODULE 1\n",
-                                    CONFIG_, sym->name);
-                                break;
-                        case yes:
-                                if (sym->type == S_TRISTATE)
-                                        fprintf(tristate,"%s%s=Y\n",
-                                            CONFIG_, sym->name);
-                                fprintf(out_h, "#define %s%s 1\n",
-                                    CONFIG_, sym->name);
-                                break;
-                        }
-                        break;
-                case S_STRING:
-                        conf_write_string(true, sym->name, sym_get_string_value(sym), out_h);
-                        break;
-                case S_HEX:
-                        str = sym_get_string_value(sym);
-                        if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
-                                fprintf(out_h, "#define %s%s 0x%s\n",
-                                    CONFIG_, sym->name, str);
-                                break;
-                        }
-                case S_INT:
-                        str = sym_get_string_value(sym);
-                        fprintf(out_h, "#define %s%s %s\n",
-                            CONFIG_, sym->name, str);
-                        break;
-                default:
-                        break;
-                }
+                conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
+
+                conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
         }
         fclose(out);
         fclose(tristate);
diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index 001003452f6..290ce41f8ba 100644
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -7,15 +7,13 @@
 #include <stdlib.h>
 #include <string.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 #define DEBUG_EXPR      0
 
 struct expr *expr_alloc_symbol(struct symbol *sym)
 {
-        struct expr *e = malloc(sizeof(*e));
-        memset(e, 0, sizeof(*e));
+        struct expr *e = calloc(1, sizeof(*e));
         e->type = E_SYMBOL;
         e->left.sym = sym;
         return e;
@@ -23,8 +21,7 @@ struct expr *expr_alloc_symbol(struct symbol *sym)
 
 struct expr *expr_alloc_one(enum expr_type type, struct expr *ce)
 {
-        struct expr *e = malloc(sizeof(*e));
-        memset(e, 0, sizeof(*e));
+        struct expr *e = calloc(1, sizeof(*e));
         e->type = type;
         e->left.expr = ce;
         return e;
@@ -32,8 +29,7 @@ struct expr *expr_alloc_one(enum expr_type type, struct expr *ce)
 
 struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2)
 {
-        struct expr *e = malloc(sizeof(*e));
-        memset(e, 0, sizeof(*e));
+        struct expr *e = calloc(1, sizeof(*e));
         e->type = type;
         e->left.expr = e1;
         e->right.expr = e2;
@@ -42,8 +38,7 @@ struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e
 
 struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2)
 {
-        struct expr *e = malloc(sizeof(*e));
-        memset(e, 0, sizeof(*e));
+        struct expr *e = calloc(1, sizeof(*e));
         e->type = type;
         e->left.sym = s1;
         e->right.sym = s2;
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 16bfae2d321..80fce57080c 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -172,8 +172,6 @@ struct menu {
 #define MENU_CHANGED            0x0001
 #define MENU_ROOT               0x0002
 
-#ifndef SWIG
-
 extern struct file *file_list;
 extern struct file *current_file;
 struct file *lookup_file(const char *name);
@@ -218,7 +216,6 @@ static inline int expr_is_no(struct expr *e)
 {
         return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
 }
-#endif
 
 #ifdef __cplusplus
 }
diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c
index a11d5f7b9ee..9f4438027df 100644
--- a/scripts/kconfig/gconf.c
+++ b/scripts/kconfig/gconf.c
@@ -285,8 +285,6 @@ void init_left_tree(void)
 static void renderer_edited(GtkCellRendererText * cell,
                             const gchar * path_string,
                             const gchar * new_text, gpointer user_data);
-static void renderer_toggled(GtkCellRendererToggle * cellrenderertoggle,
-                             gchar * arg1, gpointer user_data);
 
 void init_right_tree(void)
 {
@@ -320,8 +318,6 @@ void init_right_tree(void)
                                             "inconsistent", COL_BTNINC,
                                             "visible", COL_BTNVIS,
                                             "radio", COL_BTNRAD, NULL);
-        /*g_signal_connect(G_OBJECT(renderer), "toggled",
-           G_CALLBACK(renderer_toggled), NULL); */
         renderer = gtk_cell_renderer_text_new();
         gtk_tree_view_column_pack_start(GTK_TREE_VIEW_COLUMN(column),
                                         renderer, FALSE);
@@ -888,35 +884,6 @@ static void toggle_sym_value(struct menu *menu)
                 display_tree_part();    //fixme: keep exp/coll
 }
 
-static void renderer_toggled(GtkCellRendererToggle * cell,
-                             gchar * path_string, gpointer user_data)
-{
-        GtkTreePath *path, *sel_path = NULL;
-        GtkTreeIter iter, sel_iter;
-        GtkTreeSelection *sel;
-        struct menu *menu;
-
-        path = gtk_tree_path_new_from_string(path_string);
-        if (!gtk_tree_model_get_iter(model2, &iter, path))
-                return;
-
-        sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree2_w));
-        if (gtk_tree_selection_get_selected(sel, NULL, &sel_iter))
-                sel_path = gtk_tree_model_get_path(model2, &sel_iter);
-        if (!sel_path)
-                goto out1;
-        if (gtk_tree_path_compare(path, sel_path))
-                goto out2;
-
-        gtk_tree_model_get(model2, &iter, COL_MENU, &menu, -1);
-        toggle_sym_value(menu);
-
-      out2:
-        gtk_tree_path_free(sel_path);
-      out1:
-        gtk_tree_path_free(path);
-}
-
 static gint column2index(GtkTreeViewColumn * column)
 {
         gint i;
@@ -1172,6 +1139,7 @@ static gchar **fill_row(struct menu *menu)
                         row[COL_BTNVIS] = GINT_TO_POINTER(TRUE);
                 if (sym_is_choice(sym))
                         break;
+                /* fall through */
         case S_TRISTATE:
                 val = sym_get_tristate_value(sym);
                 switch (val) {
@@ -1506,10 +1474,6 @@ int main(int ac, char *av[])
         char *env;
         gchar *glade_file;
 
-#ifndef LKC_DIRECT_LINK
-        kconfig_load();
-#endif
-
         bindtextdomain(PACKAGE, LOCALEDIR);
         bind_textdomain_codeset(PACKAGE, "UTF-8");
         textdomain(PACKAGE);
diff --git a/scripts/kconfig/kconfig_load.c b/scripts/kconfig/kconfig_load.c
deleted file mode 100644
index dbdcaad8232..00000000000
--- a/scripts/kconfig/kconfig_load.c
+++ /dev/null
@@ -1,35 +0,0 @@
-#include <dlfcn.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "lkc.h"
-
-#define P(name,type,arg)        type (*name ## _p) arg
-#include "lkc_proto.h"
-#undef P
-
-void kconfig_load(void)
-{
-        void *handle;
-        char *error;
-
-        handle = dlopen("./libkconfig.so", RTLD_LAZY);
-        if (!handle) {
-                handle = dlopen("./scripts/kconfig/libkconfig.so", RTLD_LAZY);
-                if (!handle) {
-                        fprintf(stderr, "%s\n", dlerror());
-                        exit(1);
-                }
-        }
-
-#define P(name,type,arg)                        \
-{                                               \
-        name ## _p = dlsym(handle, #name);      \
-        if ((error = dlerror()))  {             \
-                fprintf(stderr, "%s\n", error); \
-                exit(1);                        \
-        }                                       \
-}
-#include "lkc_proto.h"
-#undef P
-}
diff --git a/scripts/kconfig/kxgettext.c b/scripts/kconfig/kxgettext.c
index e9d8e791bf0..2858738b22d 100644
--- a/scripts/kconfig/kxgettext.c
+++ b/scripts/kconfig/kxgettext.c
@@ -7,7 +7,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 static char *escape(const char* text, char *bf, int len)
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index febf0c94d55..b633bdb9f3d 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -21,12 +21,7 @@ static inline char *bind_textdomain_codeset(const char *dn, char *c) { return c;
 extern "C" {
 #endif
 
-#ifdef LKC_DIRECT_LINK
 #define P(name,type,arg)        extern type name arg
-#else
-#include "lkc_defs.h"
-#define P(name,type,arg)        extern type (*name ## _p) arg
-#endif
 #include "lkc_proto.h"
 #undef P
 
@@ -68,9 +63,7 @@ struct kconf_id {
         enum symbol_type stype;
 };
 
-#ifdef YYDEBUG
 extern int zconfdebug;
-#endif
 
 int zconfparse(void);
 void zconfdump(FILE *out);
@@ -81,9 +74,6 @@ void zconf_nextfile(const char *name);
 int zconf_lineno(void);
 const char *zconf_curname(void);
 
-/* conf.c */
-void xfgets(char *str, int size, FILE *in);
-
 /* confdata.c */
 const char *conf_get_configname(void);
 const char *conf_get_autoconfig_name(void);
@@ -92,6 +82,11 @@ void sym_set_change_count(int count);
 void sym_add_change_count(int count);
 void conf_set_all_new_symbols(enum conf_def_mode mode);
 
+struct conf_printer {
+        void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
+        void (*print_comment)(FILE *, const char *, void *);
+};
+
 /* confdata.c and expr.c */
 static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
 {
@@ -99,9 +94,6 @@ static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out)
                 fprintf(stderr, "\nError in writing or end of file.\n");
 }
 
-/* kconfig_load.c */
-void kconfig_load(void);
-
 /* menu.c */
 void _menu_init(void);
 void menu_warn(struct menu *menu, const char *fmt, ...);
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index 17342fef38b..47fe9c340f9 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -31,6 +31,7 @@ P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
 P(sym_lookup,struct symbol *,(const char *name, int flags));
 P(sym_find,struct symbol *,(const char *name));
 P(sym_expand_string_value,const char *,(const char *in));
+P(sym_escape_string_value, const char *,(const char *in));
 P(sym_re_search,struct symbol **,(const char *pattern));
 P(sym_type_name,const char *,(enum symbol_type type));
 P(sym_calc_value,void,(struct symbol *sym));
diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index 82cc3a85e7f..c8e8a715475 100644
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -4,7 +4,7 @@
 # What library to link
 ldflags()
 {
-        for ext in so a dylib ; do
+        for ext in so a dll.a dylib ; do
                 for lib in ncursesw ncurses curses ; do
                         $cc -print-file-name=lib${lib}.${ext} | grep -q /
                         if [ $? -eq 0 ]; then
@@ -19,12 +19,12 @@ ldflags()
 # Where is ncurses.h?
 ccflags()
 {
-        if [ -f /usr/include/ncurses/ncurses.h ]; then
+        if [ -f /usr/include/ncursesw/curses.h ]; then
+                echo '-I/usr/include/ncursesw -DCURSES_LOC="<ncursesw/curses.h>"'
+        elif [ -f /usr/include/ncurses/ncurses.h ]; then
                 echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
         elif [ -f /usr/include/ncurses/curses.h ]; then
                 echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'
-        elif [ -f /usr/include/ncursesw/curses.h ]; then
-                echo '-I/usr/include/ncursesw -DCURSES_LOC="<ncursesw/curses.h>"'
         elif [ -f /usr/include/ncurses.h ]; then
                 echo '-DCURSES_LOC="<ncurses.h>"'
         else
@@ -38,7 +38,7 @@ trap "rm -f $tmp" 0 1 2 3 15
 
 # Check if we can link to ncurses
 check() {
-        $cc -xc - -o $tmp 2>/dev/null <<'EOF'
+        $cc -x c - -o $tmp 2>/dev/null <<'EOF'
 #include CURSES_LOC
 main() {}
 EOF
diff --git a/scripts/kconfig/lxdialog/dialog.h b/scripts/kconfig/lxdialog/dialog.h
index b5211fce0d9..ee17a5264d5 100644
--- a/scripts/kconfig/lxdialog/dialog.h
+++ b/scripts/kconfig/lxdialog/dialog.h
@@ -144,6 +144,7 @@ struct dialog_info {
  */
 extern struct dialog_info dlg;
 extern char dialog_input_result[];
+extern int saved_x, saved_y;            /* Needed in signal handler in mconf.c */
 
 /*
  * Function prototypes
@@ -209,7 +210,13 @@ int first_alpha(const char *string, const char *exempt);
 int dialog_yesno(const char *title, const char *prompt, int height, int width);
 int dialog_msgbox(const char *title, const char *prompt, int height,
                   int width, int pause);
-int dialog_textbox(const char *title, const char *file, int height, int width);
+
+
+typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void
+                               *_data);
+int dialog_textbox(const char *title, char *tbuf, int initial_height,
+                   int initial_width, int *keys, int *_vscroll, int *_hscroll,
+                   update_text_fn update_text, void *data);
 int dialog_menu(const char *title, const char *prompt,
                 const void *selected, int *s_scroll);
 int dialog_checklist(const char *title, const char *prompt, int height,
diff --git a/scripts/kconfig/lxdialog/textbox.c b/scripts/kconfig/lxdialog/textbox.c
index c704712d022..a48bb93e090 100644
--- a/scripts/kconfig/lxdialog/textbox.c
+++ b/scripts/kconfig/lxdialog/textbox.c
@@ -22,23 +22,25 @@
 #include "dialog.h"
 
 static void back_lines(int n);
-static void print_page(WINDOW * win, int height, int width);
-static void print_line(WINDOW * win, int row, int width);
+static void print_page(WINDOW *win, int height, int width, update_text_fn
+                       update_text, void *data);
+static void print_line(WINDOW *win, int row, int width);
 static char *get_line(void);
 static void print_position(WINDOW * win);
 
 static int hscroll;
 static int begin_reached, end_reached, page_length;
-static const char *buf;
-static const char *page;
+static char *buf;
+static char *page;
 
 /*
  * refresh window content
  */
 static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
-                                                          int cur_y, int cur_x)
+                             int cur_y, int cur_x, update_text_fn update_text,
+                             void *data)
 {
-        print_page(box, boxh, boxw);
+        print_page(box, boxh, boxw, update_text, data);
         print_position(dialog);
         wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
         wrefresh(dialog);
@@ -47,14 +49,18 @@ static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
 
 /*
  * Display text from a file in a dialog box.
+ *
+ * keys is a null-terminated array
+ * update_text() may not add or remove any '\n' or '\0' in tbuf
  */
-int dialog_textbox(const char *title, const char *tbuf,
-                   int initial_height, int initial_width)
+int dialog_textbox(const char *title, char *tbuf, int initial_height,
+                   int initial_width, int *keys, int *_vscroll, int *_hscroll,
+                   update_text_fn update_text, void *data)
 {
         int i, x, y, cur_x, cur_y, key = 0;
         int height, width, boxh, boxw;
-        int passed_end;
         WINDOW *dialog, *box;
+        bool done = false;
 
         begin_reached = 1;
         end_reached = 0;
@@ -63,6 +69,15 @@ int dialog_textbox(const char *title, const char *tbuf,
         buf = tbuf;
         page = buf;     /* page is pointer to start of page to be displayed */
 
+        if (_vscroll && *_vscroll) {
+                begin_reached = 0;
+
+                for (i = 0; i < *_vscroll; i++)
+                        get_line();
+        }
+        if (_hscroll)
+                hscroll = *_hscroll;
+
 do_resize:
         getmaxyx(stdscr, height, width);
         if (height < 8 || width < 8)
@@ -120,25 +135,28 @@ do_resize:
 
         /* Print first page of text */
         attr_clear(box, boxh, boxw, dlg.dialog.atr);
-        refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x);
+        refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x, update_text,
+                         data);
 
-        while ((key != KEY_ESC) && (key != '\n')) {
+        while (!done) {
                 key = wgetch(dialog);
                 switch (key) {
                 case 'E':       /* Exit */
                 case 'e':
                 case 'X':
                 case 'x':
-                        delwin(box);
-                        delwin(dialog);
-                        return 0;
+                case 'q':
+                case '\n':
+                        done = true;
+                        break;
                 case 'g':       /* First page */
                 case KEY_HOME:
                         if (!begin_reached) {
                                 begin_reached = 1;
                                 page = buf;
                                 refresh_text_box(dialog, box, boxh, boxw,
-                                                 cur_y, cur_x);
+                                                 cur_y, cur_x, update_text,
+                                                 data);
                         }
                         break;
                 case 'G':       /* Last page */
@@ -148,78 +166,48 @@ do_resize:
                         /* point to last char in buf */
                         page = buf + strlen(buf);
                         back_lines(boxh);
-                        refresh_text_box(dialog, box, boxh, boxw,
-                                         cur_y, cur_x);
+                        refresh_text_box(dialog, box, boxh, boxw, cur_y,
+                                         cur_x, update_text, data);
                         break;
                 case 'K':       /* Previous line */
                 case 'k':
                 case KEY_UP:
-                        if (!begin_reached) {
-                                back_lines(page_length + 1);
-
-                                /* We don't call print_page() here but use
-                                 * scrolling to ensure faster screen update.
-                                 * However, 'end_reached' and 'page_length'
-                                 * should still be updated, and 'page' should
-                                 * point to start of next page. This is done
-                                 * by calling get_line() in the following
-                                 * 'for' loop. */
-                                scrollok(box, TRUE);
-                                wscrl(box, -1); /* Scroll box region down one line */
-                                scrollok(box, FALSE);
-                                page_length = 0;
-                                passed_end = 0;
-                                for (i = 0; i < boxh; i++) {
-                                        if (!i) {
-                                                /* print first line of page */
-                                                print_line(box, 0, boxw);
-                                                wnoutrefresh(box);
-                                        } else
-                                                /* Called to update 'end_reached' and 'page' */
-                                                get_line();
-                                        if (!passed_end)
-                                                page_length++;
-                                        if (end_reached && !passed_end)
-                                                passed_end = 1;
-                                }
+                        if (begin_reached)
+                                break;
 
-                                print_position(dialog);
-                                wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
-                                wrefresh(dialog);
-                        }
+                        back_lines(page_length + 1);
+                        refresh_text_box(dialog, box, boxh, boxw, cur_y,
+                                         cur_x, update_text, data);
                         break;
                 case 'B':       /* Previous page */
                 case 'b':
+                case 'u':
                 case KEY_PPAGE:
                         if (begin_reached)
                                 break;
                         back_lines(page_length + boxh);
-                        refresh_text_box(dialog, box, boxh, boxw,
-                                         cur_y, cur_x);
+                        refresh_text_box(dialog, box, boxh, boxw, cur_y,
+                                         cur_x, update_text, data);
                         break;
                 case 'J':       /* Next line */
                 case 'j':
                 case KEY_DOWN:
-                        if (!end_reached) {
-                                begin_reached = 0;
-                                scrollok(box, TRUE);
-                                scroll(box);    /* Scroll box region up one line */
-                                scrollok(box, FALSE);
-                                print_line(box, boxh - 1, boxw);
-                                wnoutrefresh(box);
-                                print_position(dialog);
-                                wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
-                                wrefresh(dialog);
-                        }
+                        if (end_reached)
+                                break;
+
+                        back_lines(page_length - 1);
+                        refresh_text_box(dialog, box, boxh, boxw, cur_y,
+                                         cur_x, update_text, data);
                         break;
                 case KEY_NPAGE: /* Next page */
                 case ' ':
+                case 'd':
                         if (end_reached)
                                 break;
 
                         begin_reached = 0;
-                        refresh_text_box(dialog, box, boxh, boxw,
-                                         cur_y, cur_x);
+                        refresh_text_box(dialog, box, boxh, boxw, cur_y,
+                                         cur_x, update_text, data);
                         break;
                 case '0':       /* Beginning of line */
                 case 'H':       /* Scroll left */
@@ -234,8 +222,8 @@ do_resize:
                                 hscroll--;
                         /* Reprint current page to scroll horizontally */
                         back_lines(page_length);
-                        refresh_text_box(dialog, box, boxh, boxw,
-                                         cur_y, cur_x);
+                        refresh_text_box(dialog, box, boxh, boxw, cur_y,
+                                         cur_x, update_text, data);
                         break;
                 case 'L':       /* Scroll right */
                 case 'l':
@@ -245,11 +233,12 @@ do_resize:
                         hscroll++;
                         /* Reprint current page to scroll horizontally */
                         back_lines(page_length);
-                        refresh_text_box(dialog, box, boxh, boxw,
-                                         cur_y, cur_x);
+                        refresh_text_box(dialog, box, boxh, boxw, cur_y,
+                                         cur_x, update_text, data);
                         break;
                 case KEY_ESC:
-                        key = on_key_esc(dialog);
+                        if (on_key_esc(dialog) == KEY_ESC)
+                                done = true;
                         break;
                 case KEY_RESIZE:
                         back_lines(height);
@@ -257,11 +246,31 @@ do_resize:
                         delwin(dialog);
                         on_key_resize();
                         goto do_resize;
+                default:
+                        for (i = 0; keys[i]; i++) {
+                                if (key == keys[i]) {
+                                        done = true;
+                                        break;
+                                }
+                        }
                 }
         }
         delwin(box);
         delwin(dialog);
-        return key;             /* ESC pressed */
+        if (_vscroll) {
+                const char *s;
+
+                s = buf;
+                *_vscroll = 0;
+                back_lines(page_length);
+                while (s < page && (s = strchr(s, '\n'))) {
+                        (*_vscroll)++;
+                        s++;
+                }
+        }
+        if (_hscroll)
+                *_hscroll = hscroll;
+        return key;
 }
 
 /*
@@ -298,12 +307,23 @@ static void back_lines(int n)
 }
 
 /*
- * Print a new page of text. Called by dialog_textbox().
+ * Print a new page of text.
  */
-static void print_page(WINDOW * win, int height, int width)
+static void print_page(WINDOW *win, int height, int width, update_text_fn
+                       update_text, void *data)
 {
         int i, passed_end = 0;
 
+        if (update_text) {
+                char *end;
+
+                for (i = 0; i < height; i++)
+                        get_line();
+                end = page;
+                back_lines(height);
+                update_text(buf, page - buf, end - buf, data);
+        }
+
         page_length = 0;
         for (i = 0; i < height; i++) {
                 print_line(win, i, width);
@@ -316,11 +336,10 @@ static void print_page(WINDOW * win, int height, int width)
 }
 
 /*
- * Print a new line of text. Called by dialog_textbox() and print_page().
+ * Print a new line of text.
  */
 static void print_line(WINDOW * win, int row, int width)
 {
-        int y, x;
         char *line;
 
         line = get_line();
@@ -329,10 +348,10 @@ static void print_line(WINDOW * win, int row, int width)
         waddch(win, ' ');
         waddnstr(win, line, MIN(strlen(line), width - 2));
 
-        getyx(win, y, x);
         /* Clear 'residue' of previous line */
 #if OLD_NCURSES
         {
+                int x = getcurx(win);
                 int i;
                 for (i = 0; i < width - x; i++)
                         waddch(win, ' ');
@@ -355,10 +374,8 @@ static char *get_line(void)
         end_reached = 0;
         while (*page != '\n') {
                 if (*page == '\0') {
-                        if (!end_reached) {
-                                end_reached = 1;
-                                break;
-                        }
+                        end_reached = 1;
+                        break;
                 } else if (i < MAX_LEN)
                         line[i++] = *(page++);
                 else {
@@ -371,7 +388,7 @@ static char *get_line(void)
         if (i <= MAX_LEN)
                 line[i] = '\0';
         if (!end_reached)
-                page++;         /* move pass '\n' */
+                page++;         /* move past '\n' */
 
         return line;
 }
diff --git a/scripts/kconfig/lxdialog/util.c b/scripts/kconfig/lxdialog/util.c
index f2375ad7ebc..109d53117d2 100644
--- a/scripts/kconfig/lxdialog/util.c
+++ b/scripts/kconfig/lxdialog/util.c
@@ -23,6 +23,9 @@
 
 #include "dialog.h"
 
+/* Needed in signal handler in mconf.c */
+int saved_x, saved_y;
+
 struct dialog_info dlg;
 
 static void set_mono_theme(void)
@@ -273,6 +276,10 @@ int init_dialog(const char *backtitle)
         int height, width;
 
         initscr();              /* Init curses */
+
+        /* Get current cursor position for signal handler in mconf.c */
+        getyx(stdscr, saved_y, saved_x);
+
         getmaxyx(stdscr, height, width);
         if (height < 19 || width < 80) {
                 endwin();
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index d433c7a2474..820d2b6800f 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -18,7 +18,6 @@
 #include <unistd.h>
 #include <locale.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 #include "lxdialog/dialog.h"
 
@@ -845,6 +844,7 @@ int main(int ac, char **av)
                                 "\n\n"));
                         return 1;
                 }
+                /* fall through */
         case -1:
                 printf(_("\n\n"
                         "*** End of the configuration.\n"
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 5fdf10dc1d8..beeb92e75f8 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -3,10 +3,11 @@
  * Released under the terms of the GNU GPL v2.0.
  */
 
+#include <ctype.h>
+#include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 static const char nohelp_text[] = N_(
@@ -350,7 +351,7 @@ void menu_finalize(struct menu *parent)
                         last_menu->next = NULL;
                 }
 
-                sym->dir_dep.expr = parent->dep;
+                sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
         }
         for (menu = parent->list; menu; menu = menu->next) {
                 if (sym && sym_is_choice(sym) &&
@@ -596,11 +597,10 @@ void menu_get_ext_help(struct menu *menu, struct gstr *help)
         struct symbol *sym = menu->sym;
 
         if (menu_has_help(menu)) {
-                if (sym->name) {
+                if (sym->name)
                         str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
-                        str_append(help, _(menu_get_help(menu)));
-                        str_append(help, "\n");
-                }
+                str_append(help, _(menu_get_help(menu)));
+                str_append(help, "\n");
         } else {
                 str_append(help, nohelp_text);
         }
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index 488dd741078..39ca1f1640e 100644
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -7,7 +7,7 @@
  */
 #define _GNU_SOURCE
 #include <string.h>
-#define LKC_DIRECT_LINK
+
 #include "lkc.h"
 #include "nconf.h"
 #include <ctype.h>
@@ -1067,7 +1067,6 @@ static void conf(struct menu *menu)
         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;
@@ -1152,13 +1151,9 @@ static void conf(struct menu *menu)
                         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;
+                sym = submenu->sym;
 
                 switch (res) {
                 case ' ':
@@ -1222,20 +1217,13 @@ static void conf_message_callback(const char *fmt, va_list ap)
 
 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, "%s%s:\n\n", CONFIG_, menu->sym->name);
-                        str_append(&help, _(menu_get_help(menu)));
-                        str_append(&help, "\n");
-                        get_symbol_str(&help, menu->sym);
-                } else {
-                        str_append(&help, _(menu_get_help(menu)));
-                }
-        } else {
-                str_append(&help, nohelp_text);
-        }
+        struct gstr help;
+
+        if (!menu)
+                return;
+
+        help = str_new();
+        menu_get_ext_help(menu, &help);
         show_scroll_win(main_window, _(menu_get_prompt(menu)), str_get(&help));
         str_free(&help);
 }
diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index c2796b866f8..df274febb3e 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -1478,10 +1478,13 @@ void ConfigMainWindow::loadConfig(void)
         ConfigView::updateListAll();
 }
 
-void ConfigMainWindow::saveConfig(void)
+bool ConfigMainWindow::saveConfig(void)
 {
-        if (conf_write(NULL))
+        if (conf_write(NULL)) {
                 QMessageBox::information(this, "qconf", _("Unable to save configuration!"));
+                return false;
+        }
+        return true;
 }
 
 void ConfigMainWindow::saveConfigAs(void)
@@ -1642,7 +1645,11 @@ void ConfigMainWindow::closeEvent(QCloseEvent* e)
         mb.setButtonText(QMessageBox::Cancel, _("Cancel Exit"));
         switch (mb.exec()) {
         case QMessageBox::Yes:
-                saveConfig();
+                if (saveConfig())
+                        e->accept();
+                else
+                        e->ignore();
+                break;
         case QMessageBox::No:
                 e->accept();
                 break;
@@ -1745,10 +1752,6 @@ int main(int ac, char** av)
         bindtextdomain(PACKAGE, LOCALEDIR);
         textdomain(PACKAGE);
 
-#ifndef LKC_DIRECT_LINK
-        kconfig_load();
-#endif
-
         progname = av[0];
         configApp = new QApplication(ac, av);
         if (ac > 1 && av[1][0] == '-') {
diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
index 91677d900db..3715b3e7212 100644
--- a/scripts/kconfig/qconf.h
+++ b/scripts/kconfig/qconf.h
@@ -311,7 +311,7 @@ public slots:
         void listFocusChanged(void);
         void goBack(void);
         void loadConfig(void);
-        void saveConfig(void);
+        bool saveConfig(void);
         void saveConfigAs(void);
         void searchConfig(void);
         void showSingleView(void);
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index a796c95fe8a..071f00c3046 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -9,7 +9,6 @@
 #include <regex.h>
 #include <sys/utsname.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 struct symbol symbol_yes = {
@@ -751,7 +750,8 @@ const char *sym_get_string_value(struct symbol *sym)
                 case no:
                         return "n";
                 case mod:
-                        return "m";
+                        sym_calc_value(modules_sym);
+                        return (modules_sym->curr.tri == no) ? "n" : "m";
                 case yes:
                         return "y";
                 }
@@ -893,6 +893,49 @@ const char *sym_expand_string_value(const char *in)
         return res;
 }
 
+const char *sym_escape_string_value(const char *in)
+{
+        const char *p;
+        size_t reslen;
+        char *res;
+        size_t l;
+
+        reslen = strlen(in) + strlen("\"\"") + 1;
+
+        p = in;
+        for (;;) {
+                l = strcspn(p, "\"\\");
+                p += l;
+
+                if (p[0] == '\0')
+                        break;
+
+                reslen++;
+                p++;
+        }
+
+        res = malloc(reslen);
+        res[0] = '\0';
+
+        strcat(res, "\"");
+
+        p = in;
+        for (;;) {
+                l = strcspn(p, "\"\\");
+                strncat(res, p, l);
+                p += l;
+
+                if (p[0] == '\0')
+                        break;
+
+                strcat(res, "\\");
+                strncat(res, p++, 1);
+        }
+
+        strcat(res, "\"");
+        return res;
+}
+
 struct symbol **sym_re_search(const char *pattern)
 {
         struct symbol *sym, **sym_arr = NULL;
diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c
index 6330cc871a4..d0b8b2318e4 100644
--- a/scripts/kconfig/util.c
+++ b/scripts/kconfig/util.c
@@ -5,6 +5,8 @@
  * Released under the terms of the GNU GPL v2.0.
  */
 
+#include <stdarg.h>
+#include <stdlib.h>
 #include <string.h>
 #include "lkc.h"
 
diff --git a/scripts/kconfig/zconf.gperf b/scripts/kconfig/zconf.gperf
index c9e690eb754..f14ab41154b 100644
--- a/scripts/kconfig/zconf.gperf
+++ b/scripts/kconfig/zconf.gperf
@@ -9,7 +9,7 @@
 
 struct kconf_id;
 
-static struct kconf_id *kconf_id_lookup(register const char *str, register unsigned int len);
+static const struct kconf_id *kconf_id_lookup(register const char *str, register unsigned int len);
 
 %%
 mainmenu,       T_MAINMENU,     TF_COMMAND
diff --git a/scripts/kconfig/zconf.hash.c_shipped b/scripts/kconfig/zconf.hash.c_shipped
index 4055d5de175..40df0005daa 100644
--- a/scripts/kconfig/zconf.hash.c_shipped
+++ b/scripts/kconfig/zconf.hash.c_shipped
@@ -1,6 +1,5 @@
-/* ANSI-C code produced by gperf version 3.0.3 */
-/* Command-line: gperf  */
-/* Computed positions: -k'1,3' */
+/* ANSI-C code produced by gperf version 3.0.4 */
+/* Command-line: gperf -t --output-file scripts/kconfig/zconf.hash.c_shipped -a -C -E -g -k '1,3,$' -p -t scripts/kconfig/zconf.gperf  */
 
 #if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
       && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
@@ -29,10 +28,11 @@
 #error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
 #endif
 
+#line 10 "scripts/kconfig/zconf.gperf"
 struct kconf_id;
 
-static struct kconf_id *kconf_id_lookup(register const char *str, register unsigned int len);
-/* maximum key range = 50, duplicates = 0 */
+static const struct kconf_id *kconf_id_lookup(register const char *str, register unsigned int len);
+/* maximum key range = 71, duplicates = 0 */
 
 #ifdef __GNUC__
 __inline
@@ -44,34 +44,34 @@ inline
 static unsigned int
 kconf_id_hash (register const char *str, register unsigned int len)
 {
-  static unsigned char asso_values[] =
+  static const unsigned char asso_values[] =
     {
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 40,  5,
-       0,  0,  5, 52,  0, 20, 52, 52, 10, 20,
-       5,  0, 35, 52,  0, 30,  0, 15,  0, 52,
-      15, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52, 52, 52, 52, 52,
-      52, 52, 52, 52, 52, 52
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 25, 25,
+       0,  0,  0,  5,  0,  0, 73, 73,  5,  0,
+      10,  5, 45, 73, 20, 20,  0, 15, 15, 73,
+      20, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73, 73, 73, 73, 73,
+      73, 73, 73, 73, 73, 73
     };
   register int hval = len;
 
@@ -85,87 +85,87 @@ kconf_id_hash (register const char *str, register unsigned int len)
         hval += asso_values[(unsigned char)str[0]];
         break;
     }
-  return hval;
+  return hval + asso_values[(unsigned char)str[len - 1]];
 }
 
 struct kconf_id_strings_t
   {
-    char kconf_id_strings_str2[sizeof("on")];
-    char kconf_id_strings_str3[sizeof("env")];
+    char kconf_id_strings_str2[sizeof("if")];
+    char kconf_id_strings_str3[sizeof("int")];
     char kconf_id_strings_str5[sizeof("endif")];
-    char kconf_id_strings_str6[sizeof("option")];
-    char kconf_id_strings_str7[sizeof("endmenu")];
-    char kconf_id_strings_str8[sizeof("optional")];
+    char kconf_id_strings_str7[sizeof("default")];
+    char kconf_id_strings_str8[sizeof("tristate")];
     char kconf_id_strings_str9[sizeof("endchoice")];
-    char kconf_id_strings_str10[sizeof("range")];
-    char kconf_id_strings_str11[sizeof("choice")];
-    char kconf_id_strings_str12[sizeof("default")];
+    char kconf_id_strings_str12[sizeof("def_tristate")];
     char kconf_id_strings_str13[sizeof("def_bool")];
-    char kconf_id_strings_str14[sizeof("help")];
-    char kconf_id_strings_str16[sizeof("config")];
-    char kconf_id_strings_str17[sizeof("def_tristate")];
-    char kconf_id_strings_str18[sizeof("hex")];
-    char kconf_id_strings_str19[sizeof("defconfig_list")];
-    char kconf_id_strings_str22[sizeof("if")];
-    char kconf_id_strings_str23[sizeof("int")];
+    char kconf_id_strings_str14[sizeof("defconfig_list")];
+    char kconf_id_strings_str17[sizeof("on")];
+    char kconf_id_strings_str18[sizeof("optional")];
+    char kconf_id_strings_str21[sizeof("option")];
+    char kconf_id_strings_str22[sizeof("endmenu")];
+    char kconf_id_strings_str23[sizeof("mainmenu")];
+    char kconf_id_strings_str25[sizeof("menuconfig")];
     char kconf_id_strings_str27[sizeof("modules")];
-    char kconf_id_strings_str28[sizeof("tristate")];
     char kconf_id_strings_str29[sizeof("menu")];
+    char kconf_id_strings_str31[sizeof("select")];
     char kconf_id_strings_str32[sizeof("comment")];
-    char kconf_id_strings_str35[sizeof("menuconfig")];
-    char kconf_id_strings_str36[sizeof("string")];
-    char kconf_id_strings_str37[sizeof("visible")];
-    char kconf_id_strings_str41[sizeof("prompt")];
-    char kconf_id_strings_str42[sizeof("depends")];
-    char kconf_id_strings_str44[sizeof("bool")];
-    char kconf_id_strings_str46[sizeof("select")];
+    char kconf_id_strings_str33[sizeof("env")];
+    char kconf_id_strings_str35[sizeof("range")];
+    char kconf_id_strings_str36[sizeof("choice")];
+    char kconf_id_strings_str39[sizeof("bool")];
+    char kconf_id_strings_str41[sizeof("source")];
+    char kconf_id_strings_str42[sizeof("visible")];
+    char kconf_id_strings_str43[sizeof("hex")];
+    char kconf_id_strings_str46[sizeof("config")];
     char kconf_id_strings_str47[sizeof("boolean")];
-    char kconf_id_strings_str48[sizeof("mainmenu")];
-    char kconf_id_strings_str51[sizeof("source")];
+    char kconf_id_strings_str51[sizeof("string")];
+    char kconf_id_strings_str54[sizeof("help")];
+    char kconf_id_strings_str56[sizeof("prompt")];
+    char kconf_id_strings_str72[sizeof("depends")];
   };
-static struct kconf_id_strings_t kconf_id_strings_contents =
+static const struct kconf_id_strings_t kconf_id_strings_contents =
   {
-    "on",
-    "env",
+    "if",
+    "int",
     "endif",
-    "option",
-    "endmenu",
-    "optional",
-    "endchoice",
-    "range",
-    "choice",
     "default",
-    "def_bool",
-    "help",
-    "config",
+    "tristate",
+    "endchoice",
     "def_tristate",
-    "hex",
+    "def_bool",
     "defconfig_list",
-    "if",
-    "int",
+    "on",
+    "optional",
+    "option",
+    "endmenu",
+    "mainmenu",
+    "menuconfig",
     "modules",
-    "tristate",
     "menu",
+    "select",
     "comment",
-    "menuconfig",
-    "string",
-    "visible",
-    "prompt",
-    "depends",
+    "env",
+    "range",
+    "choice",
     "bool",
-    "select",
+    "source",
+    "visible",
+    "hex",
+    "config",
     "boolean",
-    "mainmenu",
-    "source"
+    "string",
+    "help",
+    "prompt",
+    "depends"
   };
 #define kconf_id_strings ((const char *) &kconf_id_strings_contents)
 #ifdef __GNUC__
 __inline
-#ifdef __GNUC_STDC_INLINE__
+#if defined __GNUC_STDC_INLINE__ || defined __GNUC_GNU_INLINE__
 __attribute__ ((__gnu_inline__))
 #endif
 #endif
-struct kconf_id *
+const struct kconf_id *
 kconf_id_lookup (register const char *str, register unsigned int len)
 {
   enum
@@ -174,54 +174,94 @@ kconf_id_lookup (register const char *str, register unsigned int len)
       MIN_WORD_LENGTH = 2,
       MAX_WORD_LENGTH = 14,
       MIN_HASH_VALUE = 2,
-      MAX_HASH_VALUE = 51
+      MAX_HASH_VALUE = 72
     };
 
-  static struct kconf_id wordlist[] =
+  static const struct kconf_id wordlist[] =
     {
       {-1}, {-1},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str2,             T_ON,           TF_PARAM},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str3,             T_OPT_ENV,      TF_OPTION},
+#line 25 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str2,             T_IF,           TF_COMMAND|TF_PARAM},
+#line 36 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str3,             T_TYPE,         TF_COMMAND, S_INT},
       {-1},
+#line 26 "scripts/kconfig/zconf.gperf"
       {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str5,             T_ENDIF,        TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str6,             T_OPTION,       TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str7,     T_ENDMENU,      TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str8,     T_OPTIONAL,     TF_COMMAND},
+      {-1},
+#line 29 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str7,     T_DEFAULT,      TF_COMMAND, S_UNKNOWN},
+#line 31 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str8,     T_TYPE,         TF_COMMAND, S_TRISTATE},
+#line 20 "scripts/kconfig/zconf.gperf"
       {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str9,     T_ENDCHOICE,    TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str10,            T_RANGE,        TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str11,            T_CHOICE,       TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str12,    T_DEFAULT,      TF_COMMAND, S_UNKNOWN},
+      {-1}, {-1},
+#line 32 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str12,    T_DEFAULT,      TF_COMMAND, S_TRISTATE},
+#line 35 "scripts/kconfig/zconf.gperf"
       {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str13,    T_DEFAULT,      TF_COMMAND, S_BOOLEAN},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str14,            T_HELP,         TF_COMMAND},
-      {-1},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str16,            T_CONFIG,       TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str17,    T_DEFAULT,      TF_COMMAND, S_TRISTATE},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str18,            T_TYPE,         TF_COMMAND, S_HEX},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str19,    T_OPT_DEFCONFIG_LIST,TF_OPTION},
+#line 45 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str14,    T_OPT_DEFCONFIG_LIST,TF_OPTION},
       {-1}, {-1},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str22,            T_IF,           TF_COMMAND|TF_PARAM},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str23,            T_TYPE,         TF_COMMAND, S_INT},
-      {-1}, {-1}, {-1},
+#line 43 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str17,            T_ON,           TF_PARAM},
+#line 28 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str18,    T_OPTIONAL,     TF_COMMAND},
+      {-1}, {-1},
+#line 42 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str21,            T_OPTION,       TF_COMMAND},
+#line 17 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str22,    T_ENDMENU,      TF_COMMAND},
+#line 15 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str23,    T_MAINMENU,     TF_COMMAND},
+      {-1},
+#line 23 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str25,    T_MENUCONFIG,   TF_COMMAND},
+      {-1},
+#line 44 "scripts/kconfig/zconf.gperf"
       {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str27,    T_OPT_MODULES,  TF_OPTION},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str28,    T_TYPE,         TF_COMMAND, S_TRISTATE},
+      {-1},
+#line 16 "scripts/kconfig/zconf.gperf"
       {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str29,            T_MENU,         TF_COMMAND},
-      {-1}, {-1},
+      {-1},
+#line 39 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str31,            T_SELECT,       TF_COMMAND},
+#line 21 "scripts/kconfig/zconf.gperf"
       {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str32,    T_COMMENT,      TF_COMMAND},
-      {-1}, {-1},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str35,    T_MENUCONFIG,   TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str36,            T_TYPE,         TF_COMMAND, S_STRING},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str37,    T_VISIBLE,      TF_COMMAND},
-      {-1}, {-1}, {-1},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str41,            T_PROMPT,       TF_COMMAND},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str42,    T_DEPENDS,      TF_COMMAND},
+#line 46 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str33,            T_OPT_ENV,      TF_OPTION},
       {-1},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str44,            T_TYPE,         TF_COMMAND, S_BOOLEAN},
+#line 40 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str35,            T_RANGE,        TF_COMMAND},
+#line 19 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str36,            T_CHOICE,       TF_COMMAND},
+      {-1}, {-1},
+#line 33 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str39,            T_TYPE,         TF_COMMAND, S_BOOLEAN},
       {-1},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str46,            T_SELECT,       TF_COMMAND},
+#line 18 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str41,            T_SOURCE,       TF_COMMAND},
+#line 41 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str42,    T_VISIBLE,      TF_COMMAND},
+#line 37 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str43,            T_TYPE,         TF_COMMAND, S_HEX},
+      {-1}, {-1},
+#line 22 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str46,            T_CONFIG,       TF_COMMAND},
+#line 34 "scripts/kconfig/zconf.gperf"
       {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str47,    T_TYPE,         TF_COMMAND, S_BOOLEAN},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str48,    T_MAINMENU,     TF_COMMAND},
+      {-1}, {-1}, {-1},
+#line 38 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str51,            T_TYPE,         TF_COMMAND, S_STRING},
       {-1}, {-1},
-      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str51,            T_SOURCE,       TF_COMMAND}
+#line 24 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str54,            T_HELP,         TF_COMMAND},
+      {-1},
+#line 30 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str56,            T_PROMPT,       TF_COMMAND},
+      {-1}, {-1}, {-1}, {-1}, {-1}, {-1}, {-1}, {-1}, {-1},
+      {-1}, {-1}, {-1}, {-1}, {-1}, {-1},
+#line 27 "scripts/kconfig/zconf.gperf"
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str72,    T_DEPENDS,      TF_COMMAND}
     };
 
   if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
@@ -242,4 +282,5 @@ kconf_id_lookup (register const char *str, register unsigned int len)
     }
   return 0;
 }
+#line 47 "scripts/kconfig/zconf.gperf"
 
diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index b22f884f902..00f9d3a9cf8 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -1,5 +1,5 @@
-%option backup nostdinit noyywrap never-interactive full ecs
-%option 8bit backup nodefault perf-report perf-report
+%option nostdinit noyywrap never-interactive full ecs
+%option 8bit nodefault perf-report perf-report
 %option noinput
 %x COMMAND HELP STRING PARAM
 %{
@@ -14,7 +14,6 @@
 #include <string.h>
 #include <unistd.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 #define START_STRSIZE   16
@@ -96,7 +95,7 @@ n	[A-Za-z0-9_]
 
 <COMMAND>{
         {n}+    {
-                struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
+                const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
                 BEGIN(PARAM);
                 current_pos.file = current_file;
                 current_pos.lineno = current_file->lineno;
@@ -132,7 +131,7 @@ n	[A-Za-z0-9_]
         \n      BEGIN(INITIAL); current_file->lineno++; return T_EOL;
         ---     /* ignore */
         ({n}|[-/.])+    {
-                struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
+                const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
                 if (id && id->flags & TF_PARAM) {
                         zconflval.id = id;
                         return id->token;
diff --git a/scripts/kconfig/lex.zconf.c_shipped b/scripts/kconfig/zconf.lex.c_shipped
index d9182916f72..c32b1a49f5a 100644
--- a/scripts/kconfig/lex.zconf.c_shipped
+++ b/scripts/kconfig/zconf.lex.c_shipped
@@ -1,5 +1,5 @@
 
-#line 3 "scripts/kconfig/lex.zconf.c"
+#line 3 "scripts/kconfig/zconf.lex.c_shipped"
 
 #define  YY_INT_ALIGNED short int
 
@@ -72,6 +72,7 @@ typedef int flex_int32_t;
 typedef unsigned char flex_uint8_t; 
 typedef unsigned short int flex_uint16_t;
 typedef unsigned int flex_uint32_t;
+#endif /* ! C99 */
 
 /* Limits of integral types. */
 #ifndef INT8_MIN
@@ -102,8 +103,6 @@ typedef unsigned int flex_uint32_t;
 #define UINT32_MAX             (4294967295U)
 #endif
 
-#endif /* ! C99 */
-
 #endif /* ! FLEXINT_H */
 
 #ifdef __cplusplus
@@ -160,15 +159,7 @@ typedef unsigned int flex_uint32_t;
 
 /* Size of default input buffer. */
 #ifndef YY_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k.
- * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
- * Ditto for the __ia64__ case accordingly.
- */
-#define YY_BUF_SIZE 32768
-#else
 #define YY_BUF_SIZE 16384
-#endif /* __ia64__ */
 #endif
 
 /* The state buf must be large enough to hold one state per character in the main buffer.
@@ -785,7 +776,6 @@ char *zconftext;
 #include <string.h>
 #include <unistd.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 #define START_STRSIZE   16
@@ -922,12 +912,7 @@ static int input (void );
 
 /* Amount of stuff to slurp up with each read. */
 #ifndef YY_READ_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k */
-#define YY_READ_BUF_SIZE 16384
-#else
 #define YY_READ_BUF_SIZE 8192
-#endif /* __ia64__ */
 #endif
 
 /* Copy whatever the last rule matched to the standard output. */
@@ -1100,7 +1085,7 @@ YY_RULE_SETUP
 case 6:
 YY_RULE_SETUP
 {
-                struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
+                const struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
                 BEGIN(PARAM);
                 current_pos.file = current_file;
                 current_pos.lineno = current_file->lineno;
@@ -1175,7 +1160,7 @@ YY_RULE_SETUP
 case 19:
 YY_RULE_SETUP
 {
-                struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
+                const struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);
                 if (id && id->flags & TF_PARAM) {
                         zconflval.id = id;
                         return id->token;
@@ -2073,8 +2058,8 @@ YY_BUFFER_STATE zconf_scan_string (yyconst char * yystr )
 
 /** Setup the input buffer state to scan the given bytes. The next call to zconflex() will
  * scan from a @e copy of @a bytes.
- * @param yybytes the byte buffer to scan
- * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
+ * @param bytes the byte buffer to scan
+ * @param len the number of bytes in the buffer pointed to by @a bytes.
  * 
  * @return the newly allocated buffer state object.
  */
diff --git a/scripts/kconfig/zconf.tab.c_shipped b/scripts/kconfig/zconf.tab.c_shipped
index 4c5495ea205..f636141e7bf 100644
--- a/scripts/kconfig/zconf.tab.c_shipped
+++ b/scripts/kconfig/zconf.tab.c_shipped
@@ -1,10 +1,9 @@
-
-/* A Bison parser, made by GNU Bison 2.4.1.  */
+/* A Bison parser, made by GNU Bison 2.4.3.  */
 
 /* Skeleton implementation for Bison's Yacc-like parsers in C
    
-      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
-   Free Software Foundation, Inc.
+      Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2009, 2010 Free Software Foundation, Inc.
    
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -46,7 +45,7 @@
 #define YYBISON 1
 
 /* Bison version.  */
-#define YYBISON_VERSION "2.4.1"
+#define YYBISON_VERSION "2.4.3"
 
 /* Skeleton name.  */
 #define YYSKELETON_NAME "yacc.c"
@@ -88,7 +87,6 @@
 #include <string.h>
 #include <stdbool.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
@@ -102,22 +100,18 @@ extern int zconflex(void);
 static void zconfprint(const char *err, ...);
 static void zconf_error(const char *err, ...);
 static void zconferror(const char *err);
-static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken);
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
 
 struct symbol *symbol_hash[SYMBOL_HASHSIZE];
 
 static struct menu *current_menu, *current_entry;
 
-#define YYDEBUG 0
-#if YYDEBUG
-#define YYERROR_VERBOSE
-#endif
 
 
 
 /* Enabling traces.  */
 #ifndef YYDEBUG
-# define YYDEBUG 0
+# define YYDEBUG 1
 #endif
 
 /* Enabling verbose error messages.  */
@@ -188,7 +182,7 @@ typedef union YYSTYPE
         struct symbol *symbol;
         struct expr *expr;
         struct menu *menu;
-        struct kconf_id *id;
+        const struct kconf_id *id;
 
 
 
@@ -255,7 +249,7 @@ typedef short int yytype_int16;
 #define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
 
 #ifndef YY_
-# if YYENABLE_NLS
+# if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
 #   define YY_(msgid) dgettext ("bison-runtime", msgid)
@@ -535,18 +529,18 @@ static const yytype_int8 yyrhs[] =
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
 static const yytype_uint16 yyrline[] =
 {
-       0,   108,   108,   108,   110,   110,   112,   114,   115,   116,
-     117,   118,   119,   123,   127,   127,   127,   127,   127,   127,
-     127,   127,   131,   132,   133,   134,   135,   136,   140,   141,
-     147,   155,   161,   169,   179,   181,   182,   183,   184,   185,
-     186,   189,   197,   203,   213,   219,   225,   228,   230,   241,
-     242,   247,   256,   261,   269,   272,   274,   275,   276,   277,
-     278,   281,   287,   298,   304,   314,   316,   321,   329,   337,
-     340,   342,   343,   344,   349,   356,   363,   368,   376,   379,
-     381,   382,   383,   386,   394,   401,   408,   414,   421,   423,
-     424,   425,   428,   436,   438,   439,   442,   449,   451,   456,
-     457,   460,   461,   462,   466,   467,   470,   471,   474,   475,
-     476,   477,   478,   479,   480,   483,   484,   487,   488
+       0,   104,   104,   104,   106,   106,   108,   110,   111,   112,
+     113,   114,   115,   119,   123,   123,   123,   123,   123,   123,
+     123,   123,   127,   128,   129,   130,   131,   132,   136,   137,
+     143,   151,   157,   165,   175,   177,   178,   179,   180,   181,
+     182,   185,   193,   199,   209,   215,   221,   224,   226,   237,
+     238,   243,   252,   257,   265,   268,   270,   271,   272,   273,
+     274,   277,   283,   294,   300,   310,   312,   317,   325,   333,
+     336,   338,   339,   340,   345,   352,   359,   364,   372,   375,
+     377,   378,   379,   382,   390,   397,   404,   410,   417,   419,
+     420,   421,   424,   432,   434,   435,   438,   445,   447,   452,
+     453,   456,   457,   458,   462,   463,   466,   467,   470,   471,
+     472,   473,   474,   475,   476,   479,   480,   483,   484
 };
 #endif
 
@@ -806,9 +800,18 @@ static const yytype_uint8 yystos[] =
 
 /* Like YYERROR except do call yyerror.  This remains here temporarily
    to ease the transition to the new meaning of YYERROR, for GCC.
-   Once GCC version 2 has supplanted version 1, this can go.  */
+   Once GCC version 2 has supplanted version 1, this can go.  However,
+   YYFAIL appears to be in use.  Nevertheless, it is formally deprecated
+   in Bison 2.4.2's NEWS entry, where a plan to phase it out is
+   discussed.  */
 
 #define YYFAIL          goto yyerrlab
+#if defined YYFAIL
+  /* This is here to suppress warnings from the GCC cpp's
+     -Wunused-macros.  Normally we don't worry about that warning, but
+     some users do, and we want to make it easy for users to remove
+     YYFAIL uses, which will produce warnings from Bison 2.5.  */
+#endif
 
 #define YYRECOVERING()  (!!yyerrstatus)
 
@@ -865,7 +868,7 @@ while (YYID (0))
    we won't break user code: when these are the locations we know.  */
 
 #ifndef YY_LOCATION_PRINT
-# if YYLTYPE_IS_TRIVIAL
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
 #  define YY_LOCATION_PRINT(File, Loc)                  \
      fprintf (File, "%d.%d-%d.%d",                      \
               (Loc).first_line, (Loc).first_column,     \
@@ -1753,7 +1756,7 @@ yyreduce:
   case 48:
 
     {
-        struct kconf_id *id = kconf_id_lookup((yyvsp[(2) - (3)].string), strlen((yyvsp[(2) - (3)].string)));
+        const struct kconf_id *id = kconf_id_lookup((yyvsp[(2) - (3)].string), strlen((yyvsp[(2) - (3)].string)));
         if (id && id->flags & TF_OPTION)
                 menu_add_option(id->token, (yyvsp[(3) - (3)].string));
         else
@@ -2258,10 +2261,8 @@ void conf_parse(const char *name)
         modules_sym->flags |= SYMBOL_AUTO;
         rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
 
-#if YYDEBUG
         if (getenv("ZCONF_DEBUG"))
                 zconfdebug = 1;
-#endif
         zconfparse();
         if (zconfnerrs)
                 exit(1);
@@ -2300,7 +2301,7 @@ static const char *zconf_tokenname(int token)
         return "<token>";
 }
 
-static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken)
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
 {
         if (id->token != endtoken) {
                 zconf_error("unexpected '%s' within %s block",
@@ -2345,9 +2346,7 @@ static void zconf_error(const char *err, ...)
 
 static void zconferror(const char *err)
 {
-#if YYDEBUG
         fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
-#endif
 }
 
 static void print_quoted_string(FILE *out, const char *str)
@@ -2496,7 +2495,7 @@ void zconfdump(FILE *out)
         }
 }
 
-#include "lex.zconf.c"
+#include "zconf.lex.c"
 #include "util.c"
 #include "confdata.c"
 #include "expr.c"
diff --git a/scripts/kconfig/zconf.y b/scripts/kconfig/zconf.y
index 49fb4ab664c..864da07ba4a 100644
--- a/scripts/kconfig/zconf.y
+++ b/scripts/kconfig/zconf.y
@@ -11,7 +11,6 @@
 #include <string.h>
 #include <stdbool.h>
 
-#define LKC_DIRECT_LINK
 #include "lkc.h"
 
 #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
@@ -25,16 +24,12 @@ extern int zconflex(void);
 static void zconfprint(const char *err, ...);
 static void zconf_error(const char *err, ...);
 static void zconferror(const char *err);
-static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken);
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
 
 struct symbol *symbol_hash[SYMBOL_HASHSIZE];
 
 static struct menu *current_menu, *current_entry;
 
-#define YYDEBUG 0
-#if YYDEBUG
-#define YYERROR_VERBOSE
-#endif
 %}
 %expect 30
 
@@ -45,7 +40,7 @@ static struct menu *current_menu, *current_entry;
         struct symbol *symbol;
         struct expr *expr;
         struct menu *menu;
-        struct kconf_id *id;
+        const struct kconf_id *id;
 }
 
 %token <id>T_MAINMENU
@@ -229,7 +224,7 @@ symbol_option_list:
           /* empty */
         | symbol_option_list T_WORD symbol_option_arg
 {
-        struct kconf_id *id = kconf_id_lookup($2, strlen($2));
+        const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
         if (id && id->flags & TF_OPTION)
                 menu_add_option(id->token, $3);
         else
@@ -503,10 +498,8 @@ void conf_parse(const char *name)
         modules_sym->flags |= SYMBOL_AUTO;
         rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
 
-#if YYDEBUG
         if (getenv("ZCONF_DEBUG"))
                 zconfdebug = 1;
-#endif
         zconfparse();
         if (zconfnerrs)
                 exit(1);
@@ -545,7 +538,7 @@ static const char *zconf_tokenname(int token)
         return "<token>";
 }
 
-static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken)
+static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
 {
         if (id->token != endtoken) {
                 zconf_error("unexpected '%s' within %s block",
@@ -590,9 +583,7 @@ static void zconf_error(const char *err, ...)
 
 static void zconferror(const char *err)
 {
-#if YYDEBUG
         fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
-#endif
 }
 
 static void print_quoted_string(FILE *out, const char *str)
@@ -741,7 +732,7 @@ void zconfdump(FILE *out)
         }
 }
 
-#include "lex.zconf.c"
+#include "zconf.lex.c"
 #include "util.c"
 #include "confdata.c"
 #include "expr.c"