From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 3 Aug 2016 17:47:34 +0000 (+0200)
Subject: scripts/config: sync with latest linux upstream
X-Git-Tag: v19.07.0-rc1~9409
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=2d7e602381f3c473d6c8214e8e56bcf80ccf9fa5;p=openwrt%2Fstaging%2Fhauke.git

scripts/config: sync with latest linux upstream

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/scripts/config/conf.c b/scripts/config/conf.c
index 16e5c43787..6d35957afe 100644
--- a/scripts/config/conf.c
+++ b/scripts/config/conf.c
@@ -5,6 +5,7 @@
 
 #include <locale.h>
 #include <ctype.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -41,7 +42,7 @@ static int tty_stdio;
 static int valid_stdin = 1;
 static int sync_kconfig;
 static int conf_cnt;
-static char line[128];
+static char line[PATH_MAX];
 static struct menu *rootEntry;
 
 static void print_help(struct menu *menu)
@@ -109,7 +110,7 @@ static int conf_askvalue(struct symbol *sym, const char *def)
 		/* fall through */
 	case oldaskconfig:
 		fflush(stdout);
-		xfgets(line, 128, stdin);
+		xfgets(line, sizeof(line), stdin);
 		if (!tty_stdio)
 			printf("\n");
 		return 1;
@@ -311,7 +312,7 @@ static int conf_choice(struct menu *menu)
 			/* fall through */
 		case oldaskconfig:
 			fflush(stdout);
-			xfgets(line, 128, stdin);
+			xfgets(line, sizeof(line), stdin);
 			strip(line);
 			if (line[0] == '?') {
 				print_help(menu);
@@ -471,7 +472,7 @@ static struct option long_opts[] = {
 static void conf_usage(const char *progname)
 {
 
-	printf("Usage: %s [option] <kconfig-file>\n", progname);
+	printf("Usage: %s [-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");
@@ -502,7 +503,11 @@ int main(int ac, char **av)
 
 	tty_stdio = isatty(0) && isatty(1) && isatty(2);
 
-	while ((opt = getopt_long(ac, av, "r:w:", long_opts, NULL)) != -1) {
+	while ((opt = getopt_long(ac, av, "r:w:s", long_opts, NULL)) != -1) {
+		if (opt == 's') {
+			conf_set_message_callback(NULL);
+			continue;
+		}
 		switch (opt) {
 		case silentoldconfig:
 			sync_kconfig = 1;
diff --git a/scripts/config/confdata.c b/scripts/config/confdata.c
index 052347ce06..3a3a4bff43 100644
--- a/scripts/config/confdata.c
+++ b/scripts/config/confdata.c
@@ -16,6 +16,11 @@
 
 #include "lkc.h"
 
+struct conf_printer {
+	void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
+	void (*print_comment)(FILE *, const char *, void *);
+};
+
 static void conf_warning(const char *fmt, ...)
 	__attribute__ ((format (printf, 1, 2)));
 
@@ -59,6 +64,7 @@ static void conf_message(const char *fmt, ...)
 	va_start(ap, fmt);
 	if (conf_message_callback)
 		conf_message_callback(fmt, ap);
+	va_end(ap);
 }
 
 const char *conf_get_configname(void)
@@ -286,11 +292,8 @@ int conf_read_simple(const char *name, int def)
 		if (in)
 			goto load;
 		sym_add_change_count(1);
-		if (!sym_defconfig_list) {
-			if (modules_sym)
-				sym_calc_value(modules_sym);
+		if (!sym_defconfig_list)
 			return 1;
-		}
 
 		for_all_defaults(sym_defconfig_list, prop) {
 			if (expr_calc_value(prop->visible.expr) == no ||
@@ -375,7 +378,9 @@ load:
 				continue;
 		} else {
 			if (line[0] != '\r' && line[0] != '\n')
-				conf_warning("unexpected data");
+				conf_warning("unexpected data: %.*s",
+					     (int)strcspn(line, "\r\n"), line);
+
 			continue;
 		}
 setsym:
@@ -401,9 +406,6 @@ setsym:
 	}
 	free(line);
 	fclose(in);
-
-	if (modules_sym)
-		sym_calc_value(modules_sym);
 	return 0;
 }
 
@@ -414,8 +416,12 @@ int conf_read(const char *name)
 
 	sym_set_change_count(0);
 
-	if (conf_read_simple(name, S_DEF_USER))
+	if (conf_read_simple(name, S_DEF_USER)) {
+		sym_calc_value(modules_sym);
 		return 1;
+	}
+
+	sym_calc_value(modules_sym);
 
 	for_all_symbols(i, sym) {
 		sym_calc_value(sym);
@@ -846,6 +852,7 @@ static int conf_split_config(void)
 
 	name = conf_get_autoconfig_name();
 	conf_read_simple(name, S_DEF_AUTO);
+	sym_calc_value(modules_sym);
 
 	if (chdir("include/config"))
 		return 1;
diff --git a/scripts/config/expr.c b/scripts/config/expr.c
index d6626521f9..cbf4996dd9 100644
--- a/scripts/config/expr.c
+++ b/scripts/config/expr.c
@@ -11,6 +11,9 @@
 
 #define DEBUG_EXPR	0
 
+static int expr_eq(struct expr *e1, struct expr *e2);
+static struct expr *expr_eliminate_yn(struct expr *e);
+
 struct expr *expr_alloc_symbol(struct symbol *sym)
 {
 	struct expr *e = xcalloc(1, sizeof(*e));
@@ -76,6 +79,10 @@ struct expr *expr_copy(const struct expr *org)
 		e->left.expr = expr_copy(org->left.expr);
 		break;
 	case E_EQUAL:
+	case E_GEQ:
+	case E_GTH:
+	case E_LEQ:
+	case E_LTH:
 	case E_UNEQUAL:
 		e->left.sym = org->left.sym;
 		e->right.sym = org->right.sym;
@@ -108,6 +115,10 @@ void expr_free(struct expr *e)
 		expr_free(e->left.expr);
 		return;
 	case E_EQUAL:
+	case E_GEQ:
+	case E_GTH:
+	case E_LEQ:
+	case E_LTH:
 	case E_UNEQUAL:
 		break;
 	case E_OR:
@@ -186,7 +197,7 @@ void expr_eliminate_eq(struct expr **ep1, struct expr **ep2)
 #undef e1
 #undef e2
 
-int expr_eq(struct expr *e1, struct expr *e2)
+static int expr_eq(struct expr *e1, struct expr *e2)
 {
 	int res, old_count;
 
@@ -194,6 +205,10 @@ int expr_eq(struct expr *e1, struct expr *e2)
 		return 0;
 	switch (e1->type) {
 	case E_EQUAL:
+	case E_GEQ:
+	case E_GTH:
+	case E_LEQ:
+	case E_LTH:
 	case E_UNEQUAL:
 		return e1->left.sym == e2->left.sym && e1->right.sym == e2->right.sym;
 	case E_SYMBOL:
@@ -228,7 +243,7 @@ int expr_eq(struct expr *e1, struct expr *e2)
 	return 0;
 }
 
-struct expr *expr_eliminate_yn(struct expr *e)
+static struct expr *expr_eliminate_yn(struct expr *e)
 {
 	struct expr *tmp;
 
@@ -553,62 +568,6 @@ static void expr_eliminate_dups1(enum expr_type type, struct expr **ep1, struct
 #undef e2
 }
 
-static void expr_eliminate_dups2(enum expr_type type, struct expr **ep1, struct expr **ep2)
-{
-#define e1 (*ep1)
-#define e2 (*ep2)
-	struct expr *tmp, *tmp1, *tmp2;
-
-	if (e1->type == type) {
-		expr_eliminate_dups2(type, &e1->left.expr, &e2);
-		expr_eliminate_dups2(type, &e1->right.expr, &e2);
-		return;
-	}
-	if (e2->type == type) {
-		expr_eliminate_dups2(type, &e1, &e2->left.expr);
-		expr_eliminate_dups2(type, &e1, &e2->right.expr);
-	}
-	if (e1 == e2)
-		return;
-
-	switch (e1->type) {
-	case E_OR:
-		expr_eliminate_dups2(e1->type, &e1, &e1);
-		// (FOO || BAR) && (!FOO && !BAR) -> n
-		tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
-		tmp2 = expr_copy(e2);
-		tmp = expr_extract_eq_and(&tmp1, &tmp2);
-		if (expr_is_yes(tmp1)) {
-			expr_free(e1);
-			e1 = expr_alloc_symbol(&symbol_no);
-			trans_count++;
-		}
-		expr_free(tmp2);
-		expr_free(tmp1);
-		expr_free(tmp);
-		break;
-	case E_AND:
-		expr_eliminate_dups2(e1->type, &e1, &e1);
-		// (FOO && BAR) || (!FOO || !BAR) -> y
-		tmp1 = expr_transform(expr_alloc_one(E_NOT, expr_copy(e1)));
-		tmp2 = expr_copy(e2);
-		tmp = expr_extract_eq_or(&tmp1, &tmp2);
-		if (expr_is_no(tmp1)) {
-			expr_free(e1);
-			e1 = expr_alloc_symbol(&symbol_yes);
-			trans_count++;
-		}
-		expr_free(tmp2);
-		expr_free(tmp1);
-		expr_free(tmp);
-		break;
-	default:
-		;
-	}
-#undef e1
-#undef e2
-}
-
 struct expr *expr_eliminate_dups(struct expr *e)
 {
 	int oldcount;
@@ -621,7 +580,6 @@ struct expr *expr_eliminate_dups(struct expr *e)
 		switch (e->type) {
 		case E_OR: case E_AND:
 			expr_eliminate_dups1(e->type, &e, &e);
-			expr_eliminate_dups2(e->type, &e, &e);
 		default:
 			;
 		}
@@ -641,6 +599,10 @@ struct expr *expr_transform(struct expr *e)
 		return NULL;
 	switch (e->type) {
 	case E_EQUAL:
+	case E_GEQ:
+	case E_GTH:
+	case E_LEQ:
+	case E_LTH:
 	case E_UNEQUAL:
 	case E_SYMBOL:
 	case E_LIST:
@@ -713,6 +675,22 @@ struct expr *expr_transform(struct expr *e)
 			e = tmp;
 			e->type = e->type == E_EQUAL ? E_UNEQUAL : E_EQUAL;
 			break;
+		case E_LEQ:
+		case E_GEQ:
+			// !a<='x' -> a>'x'
+			tmp = e->left.expr;
+			free(e);
+			e = tmp;
+			e->type = e->type == E_LEQ ? E_GTH : E_LTH;
+			break;
+		case E_LTH:
+		case E_GTH:
+			// !a<'x' -> a>='x'
+			tmp = e->left.expr;
+			free(e);
+			e = tmp;
+			e->type = e->type == E_LTH ? E_GEQ : E_LEQ;
+			break;
 		case E_OR:
 			// !(a || b) -> !a && !b
 			tmp = e->left.expr;
@@ -783,6 +761,10 @@ int expr_contains_symbol(struct expr *dep, struct symbol *sym)
 	case E_SYMBOL:
 		return dep->left.sym == sym;
 	case E_EQUAL:
+	case E_GEQ:
+	case E_GTH:
+	case E_LEQ:
+	case E_LTH:
 	case E_UNEQUAL:
 		return dep->left.sym == sym ||
 		       dep->right.sym == sym;
@@ -823,57 +805,6 @@ bool expr_depends_symbol(struct expr *dep, struct symbol *sym)
  	return false;
 }
 
-struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2)
-{
-	struct expr *tmp = NULL;
-	expr_extract_eq(E_AND, &tmp, ep1, ep2);
-	if (tmp) {
-		*ep1 = expr_eliminate_yn(*ep1);
-		*ep2 = expr_eliminate_yn(*ep2);
-	}
-	return tmp;
-}
-
-struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2)
-{
-	struct expr *tmp = NULL;
-	expr_extract_eq(E_OR, &tmp, ep1, ep2);
-	if (tmp) {
-		*ep1 = expr_eliminate_yn(*ep1);
-		*ep2 = expr_eliminate_yn(*ep2);
-	}
-	return tmp;
-}
-
-void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2)
-{
-#define e1 (*ep1)
-#define e2 (*ep2)
-	if (e1->type == type) {
-		expr_extract_eq(type, ep, &e1->left.expr, &e2);
-		expr_extract_eq(type, ep, &e1->right.expr, &e2);
-		return;
-	}
-	if (e2->type == type) {
-		expr_extract_eq(type, ep, ep1, &e2->left.expr);
-		expr_extract_eq(type, ep, ep1, &e2->right.expr);
-		return;
-	}
-	if (expr_eq(e1, e2)) {
-		*ep = *ep ? expr_alloc_two(type, *ep, e1) : e1;
-		expr_free(e2);
-		if (type == E_AND) {
-			e1 = expr_alloc_symbol(&symbol_yes);
-			e2 = expr_alloc_symbol(&symbol_yes);
-		} else if (type == E_OR) {
-			e1 = expr_alloc_symbol(&symbol_no);
-			e2 = expr_alloc_symbol(&symbol_no);
-		}
-	}
-#undef e1
-#undef e2
-}
-
 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym)
 {
 	struct expr *e1, *e2;
@@ -908,6 +839,10 @@ struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symb
 	case E_NOT:
 		return expr_trans_compare(e->left.expr, type == E_EQUAL ? E_UNEQUAL : E_EQUAL, sym);
 	case E_UNEQUAL:
+	case E_LTH:
+	case E_LEQ:
+	case E_GTH:
+	case E_GEQ:
 	case E_EQUAL:
 		if (type == E_EQUAL) {
 			if (sym == &symbol_yes)
@@ -935,10 +870,57 @@ struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symb
 	return NULL;
 }
 
+enum string_value_kind {
+	k_string,
+	k_signed,
+	k_unsigned,
+	k_invalid
+};
+
+union string_value {
+	unsigned long long u;
+	signed long long s;
+};
+
+static enum string_value_kind expr_parse_string(const char *str,
+						enum symbol_type type,
+						union string_value *val)
+{
+	char *tail;
+	enum string_value_kind kind;
+
+	errno = 0;
+	switch (type) {
+	case S_BOOLEAN:
+	case S_TRISTATE:
+		return k_string;
+	case S_INT:
+		val->s = strtoll(str, &tail, 10);
+		kind = k_signed;
+		break;
+	case S_HEX:
+		val->u = strtoull(str, &tail, 16);
+		kind = k_unsigned;
+		break;
+	case S_STRING:
+	case S_UNKNOWN:
+		val->s = strtoll(str, &tail, 0);
+		kind = k_signed;
+		break;
+	default:
+		return k_invalid;
+	}
+	return !errno && !*tail && tail > str && isxdigit(tail[-1])
+	       ? kind : k_string;
+}
+
 tristate expr_calc_value(struct expr *e)
 {
 	tristate val1, val2;
 	const char *str1, *str2;
+	enum string_value_kind k1 = k_string, k2 = k_string;
+	union string_value lval = {}, rval = {};
+	int res;
 
 	if (!e)
 		return yes;
@@ -959,31 +941,70 @@ tristate expr_calc_value(struct expr *e)
 		val1 = expr_calc_value(e->left.expr);
 		return EXPR_NOT(val1);
 	case E_EQUAL:
-		sym_calc_value(e->left.sym);
-		sym_calc_value(e->right.sym);
-		str1 = sym_get_string_value(e->left.sym);
-		str2 = sym_get_string_value(e->right.sym);
-		return !strcmp(str1, str2) ? yes : no;
+	case E_GEQ:
+	case E_GTH:
+	case E_LEQ:
+	case E_LTH:
 	case E_UNEQUAL:
-		sym_calc_value(e->left.sym);
-		sym_calc_value(e->right.sym);
-		str1 = sym_get_string_value(e->left.sym);
-		str2 = sym_get_string_value(e->right.sym);
-		return !strcmp(str1, str2) ? no : yes;
+		break;
 	default:
 		printf("expr_calc_value: %d?\n", e->type);
 		return no;
 	}
+
+	sym_calc_value(e->left.sym);
+	sym_calc_value(e->right.sym);
+	str1 = sym_get_string_value(e->left.sym);
+	str2 = sym_get_string_value(e->right.sym);
+
+	if (e->left.sym->type != S_STRING || e->right.sym->type != S_STRING) {
+		k1 = expr_parse_string(str1, e->left.sym->type, &lval);
+		k2 = expr_parse_string(str2, e->right.sym->type, &rval);
+	}
+
+	if (k1 == k_string || k2 == k_string)
+		res = strcmp(str1, str2);
+	else if (k1 == k_invalid || k2 == k_invalid) {
+		if (e->type != E_EQUAL && e->type != E_UNEQUAL) {
+			printf("Cannot compare \"%s\" and \"%s\"\n", str1, str2);
+			return no;
+		}
+		res = strcmp(str1, str2);
+	} else if (k1 == k_unsigned || k2 == k_unsigned)
+		res = (lval.u > rval.u) - (lval.u < rval.u);
+	else /* if (k1 == k_signed && k2 == k_signed) */
+		res = (lval.s > rval.s) - (lval.s < rval.s);
+
+	switch(e->type) {
+	case E_EQUAL:
+		return res ? no : yes;
+	case E_GEQ:
+		return res >= 0 ? yes : no;
+	case E_GTH:
+		return res > 0 ? yes : no;
+	case E_LEQ:
+		return res <= 0 ? yes : no;
+	case E_LTH:
+		return res < 0 ? yes : no;
+	case E_UNEQUAL:
+		return res ? yes : no;
+	default:
+		printf("expr_calc_value: relation %d?\n", e->type);
+		return no;
+	}
 }
 
-int expr_compare_type(enum expr_type t1, enum expr_type t2)
+static int expr_compare_type(enum expr_type t1, enum expr_type t2)
 {
-#if 0
-	return 1;
-#else
 	if (t1 == t2)
 		return 0;
 	switch (t1) {
+	case E_LEQ:
+	case E_LTH:
+	case E_GEQ:
+	case E_GTH:
+		if (t2 == E_EQUAL || t2 == E_UNEQUAL)
+			return 1;
 	case E_EQUAL:
 	case E_UNEQUAL:
 		if (t2 == E_NOT)
@@ -1005,7 +1026,6 @@ int expr_compare_type(enum expr_type t1, enum expr_type t2)
 	}
 	printf("[%dgt%d?]", t1, t2);
 	return 0;
-#endif
 }
 
 static inline struct expr *
@@ -1078,6 +1098,24 @@ void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *
 		fn(data, NULL, "=");
 		fn(data, e->right.sym, e->right.sym->name);
 		break;
+	case E_LEQ:
+	case E_LTH:
+		if (e->left.sym->name)
+			fn(data, e->left.sym, e->left.sym->name);
+		else
+			fn(data, NULL, "<choice>");
+		fn(data, NULL, e->type == E_LEQ ? "<=" : "<");
+		fn(data, e->right.sym, e->right.sym->name);
+		break;
+	case E_GEQ:
+	case E_GTH:
+		if (e->left.sym->name)
+			fn(data, e->left.sym, e->left.sym->name);
+		else
+			fn(data, NULL, "<choice>");
+		fn(data, NULL, e->type == E_GEQ ? ">=" : ">");
+		fn(data, e->right.sym, e->right.sym->name);
+		break;
 	case E_UNEQUAL:
 		if (e->left.sym->name)
 			fn(data, e->left.sym, e->left.sym->name);
diff --git a/scripts/config/expr.h b/scripts/config/expr.h
index e824bbadeb..d21bbe3b31 100644
--- a/scripts/config/expr.h
+++ b/scripts/config/expr.h
@@ -29,7 +29,9 @@ typedef enum tristate {
 } tristate;
 
 enum expr_type {
-	E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE
+	E_NONE, E_OR, E_AND, E_NOT,
+	E_EQUAL, E_UNEQUAL, E_LTH, E_LEQ, E_GTH, E_GEQ,
+	E_LIST, E_SYMBOL, E_RANGE
 };
 
 union expr_data {
@@ -206,18 +208,13 @@ struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
 struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
 struct expr *expr_copy(const struct expr *org);
 void expr_free(struct expr *e);
-int expr_eq(struct expr *e1, struct expr *e2);
 void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
 tristate expr_calc_value(struct expr *e);
-struct expr *expr_eliminate_yn(struct expr *e);
 struct expr *expr_trans_bool(struct expr *e);
 struct expr *expr_eliminate_dups(struct expr *e);
 struct expr *expr_transform(struct expr *e);
 int expr_contains_symbol(struct expr *dep, struct symbol *sym);
 bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
-struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
-struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
-void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
 struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2);
 
diff --git a/scripts/config/lkc.h b/scripts/config/lkc.h
index d5daa7af8b..6d2400bf25 100644
--- a/scripts/config/lkc.h
+++ b/scripts/config/lkc.h
@@ -21,9 +21,7 @@ static inline char *bind_textdomain_codeset(const char *dn, char *c) { return c;
 extern "C" {
 #endif
 
-#define P(name,type,arg)	extern type name arg
 #include "lkc_proto.h"
-#undef P
 
 #define SRCTREE "srctree"
 
@@ -70,9 +68,6 @@ struct kconf_id {
 	enum symbol_type stype;
 };
 
-extern int zconfdebug;
-
-int zconfparse(void);
 void zconfdump(FILE *out);
 void zconf_starthelp(void);
 FILE *zconf_fopen(const char *name);
@@ -90,11 +85,6 @@ void sym_add_change_count(int count);
 bool conf_set_all_new_symbols(enum conf_def_mode mode);
 void set_all_choice_values(struct symbol *csym);
 
-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)
 {
@@ -137,7 +127,6 @@ struct gstr {
 	int max_width;
 };
 struct gstr str_new(void);
-struct gstr str_assign(const char *s);
 void str_free(struct gstr *gs);
 void str_append(struct gstr *gs, const char *s);
 void str_printf(struct gstr *gs, const char *fmt, ...);
@@ -148,8 +137,6 @@ extern struct expr *sym_env_list;
 
 void sym_init(void);
 void sym_clear_all_valid(void);
-void sym_set_all_changed(void);
-void sym_set_changed(struct symbol *sym);
 struct symbol *sym_choice_default(struct symbol *sym);
 const char *sym_get_string_default(struct symbol *sym);
 struct symbol *sym_check_deps(struct symbol *sym);
diff --git a/scripts/config/lkc_proto.h b/scripts/config/lkc_proto.h
index adad31309b..e4c2fea2d0 100644
--- a/scripts/config/lkc_proto.h
+++ b/scripts/config/lkc_proto.h
@@ -1,58 +1,53 @@
 #include <stdarg.h>
 
 /* confdata.c */
-P(conf_parse,void,(const char *name));
-P(conf_read,int,(const char *name));
-P(conf_read_simple,int,(const char *name, int));
-P(conf_reset,void,(int));
-P(conf_write_defconfig,int,(const char *name));
-P(conf_write,int,(const char *name));
-P(conf_write_autoconf,int,(void));
-P(conf_get_changed,bool,(void));
-P(conf_set_changed_callback, void,(void (*fn)(void)));
-P(conf_set_message_callback, void,(void (*fn)(const char *fmt, va_list ap)));
+void conf_parse(const char *name);
+int conf_read(const char *name);
+int conf_read_simple(const char *name, int);
+void conf_reset(int def);
+int conf_write_defconfig(const char *name);
+int conf_write(const char *name);
+int conf_write_autoconf(void);
+bool conf_get_changed(void);
+void conf_set_changed_callback(void (*fn)(void));
+void conf_set_message_callback(void (*fn)(const char *fmt, va_list ap));
 
 /* menu.c */
-P(rootmenu,struct menu,);
+extern struct menu rootmenu;
 
-P(menu_is_empty, bool, (struct menu *menu));
-P(menu_is_visible, bool, (struct menu *menu));
-P(menu_has_prompt, bool, (struct menu *menu));
-P(menu_get_prompt,const char *,(struct menu *menu));
-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, struct list_head
-			 *head));
-P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct list_head
-				   *head));
-P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
+bool menu_is_empty(struct menu *menu);
+bool menu_is_visible(struct menu *menu);
+bool menu_has_prompt(struct menu *menu);
+const char * menu_get_prompt(struct menu *menu);
+struct menu * menu_get_root_menu(struct menu *menu);
+struct menu * menu_get_parent_menu(struct menu *menu);
+bool menu_has_help(struct menu *menu);
+const char * menu_get_help(struct menu *menu);
+struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
+void menu_get_ext_help(struct menu *menu, struct gstr *help);
 
 /* symbol.c */
-P(symbol_hash,struct symbol *,[SYMBOL_HASHSIZE]);
+extern struct symbol * symbol_hash[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));
-P(sym_get_type,enum symbol_type,(struct symbol *sym));
-P(sym_tristate_within_range,bool,(struct symbol *sym,tristate tri));
-P(sym_set_tristate_value,bool,(struct symbol *sym,tristate tri));
-P(sym_toggle_tristate_value,tristate,(struct symbol *sym));
-P(sym_string_valid,bool,(struct symbol *sym, const char *newval));
-P(sym_string_within_range,bool,(struct symbol *sym, const char *str));
-P(sym_set_string_value,bool,(struct symbol *sym, const char *newval));
-P(sym_is_changable,bool,(struct symbol *sym));
-P(sym_get_choice_prop,struct property *,(struct symbol *sym));
-P(sym_get_default_prop,struct property *,(struct symbol *sym));
-P(sym_get_string_value,const char *,(struct symbol *sym));
+struct symbol * sym_lookup(const char *name, int flags);
+struct symbol * sym_find(const char *name);
+const char * sym_expand_string_value(const char *in);
+const char * sym_escape_string_value(const char *in);
+struct symbol ** sym_re_search(const char *pattern);
+const char * sym_type_name(enum symbol_type type);
+void sym_calc_value(struct symbol *sym);
+enum symbol_type sym_get_type(struct symbol *sym);
+bool sym_tristate_within_range(struct symbol *sym,tristate tri);
+bool sym_set_tristate_value(struct symbol *sym,tristate tri);
+tristate sym_toggle_tristate_value(struct symbol *sym);
+bool sym_string_valid(struct symbol *sym, const char *newval);
+bool sym_string_within_range(struct symbol *sym, const char *str);
+bool sym_set_string_value(struct symbol *sym, const char *newval);
+bool sym_is_changable(struct symbol *sym);
+struct property * sym_get_choice_prop(struct symbol *sym);
+const char * sym_get_string_value(struct symbol *sym);
 
-P(prop_get_type_name,const char *,(enum prop_type type));
+const char * prop_get_type_name(enum prop_type type);
 
 /* expr.c */
-P(expr_compare_type,int,(enum expr_type t1, enum expr_type t2));
-P(expr_print,void,(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken));
+void expr_print(struct expr *e, void (*fn)(void *, struct symbol *, const char *), void *data, int prevtoken);
diff --git a/scripts/config/mconf.c b/scripts/config/mconf.c
index f437dd7176..c366e21fba 100644
--- a/scripts/config/mconf.c
+++ b/scripts/config/mconf.c
@@ -275,6 +275,7 @@ static int child_count;
 static int single_menu_mode;
 static int show_all_options;
 static int save_and_exit;
+static int silent;
 
 static void conf(struct menu *menu, struct menu *active_menu);
 static void conf_choice(struct menu *menu);
@@ -773,10 +774,12 @@ static void conf_message_callback(const char *fmt, va_list ap)
 	char buf[PATH_MAX+1];
 
 	vsnprintf(buf, sizeof(buf), fmt, ap);
-	if (save_and_exit)
-		printf("%s", buf);
-	else
+	if (save_and_exit) {
+		if (!silent)
+			printf("%s", buf);
+	} else {
 		show_textbox(NULL, buf, 6, 60);
+	}
 }
 
 static void show_help(struct menu *menu)
@@ -983,16 +986,18 @@ static int handle_exit(void)
 		}
 		/* fall through */
 	case -1:
-		printf(_("\n\n"
-			 "*** End of the configuration.\n"
-			 "*** Execute 'make' to start the build or try 'make help'."
-			 "\n\n"));
+		if (!silent)
+			printf(_("\n\n"
+				 "*** End of the configuration.\n"
+				 "*** Execute 'make' to start the build or try 'make help'."
+				 "\n\n"));
 		res = 0;
 		break;
 	default:
-		fprintf(stderr, _("\n\n"
-				  "Your configuration changes were NOT saved."
-				  "\n\n"));
+		if (!silent)
+			fprintf(stderr, _("\n\n"
+					  "Your configuration changes were NOT saved."
+					  "\n\n"));
 		if (res != KEY_ESC)
 			res = 0;
 	}
@@ -1016,6 +1021,12 @@ int main(int ac, char **av)
 
 	signal(SIGINT, sig_handler);
 
+	if (ac > 1 && strcmp(av[1], "-s") == 0) {
+		silent = 1;
+		/* Silence conf_read() until the real callback is set up */
+		conf_set_message_callback(NULL);
+		av++;
+	}
 	conf_parse(av[1]);
 	conf_read(NULL);
 
diff --git a/scripts/config/menu.c b/scripts/config/menu.c
index 72c9dba84c..3d89dc178d 100644
--- a/scripts/config/menu.c
+++ b/scripts/config/menu.c
@@ -477,7 +477,7 @@ bool menu_is_visible(struct menu *menu)
 
 	if (menu->visibility) {
 		if (expr_calc_value(menu->visibility) == no)
-			return no;
+			return false;
 	}
 
 	sym = menu->sym;
@@ -615,7 +615,7 @@ static struct property *get_symbol_prop(struct symbol *sym)
 /*
  * head is optional and may be NULL
  */
-void get_symbol_str(struct gstr *r, struct symbol *sym,
+static void get_symbol_str(struct gstr *r, struct symbol *sym,
 		    struct list_head *head)
 {
 	bool hit;
diff --git a/scripts/config/symbol.c b/scripts/config/symbol.c
index 7caabdb51c..ca6f43726b 100644
--- a/scripts/config/symbol.c
+++ b/scripts/config/symbol.c
@@ -112,7 +112,7 @@ struct property *sym_get_env_prop(struct symbol *sym)
 	return NULL;
 }
 
-struct property *sym_get_default_prop(struct symbol *sym)
+static struct property *sym_get_default_prop(struct symbol *sym)
 {
 	struct property *prop;
 
@@ -186,15 +186,49 @@ static void sym_validate_range(struct symbol *sym)
 	sym->curr.val = strdup(str);
 }
 
+static void sym_set_changed(struct symbol *sym)
+{
+	struct property *prop;
+
+	sym->flags |= SYMBOL_CHANGED;
+	for (prop = sym->prop; prop; prop = prop->next) {
+		if (prop->menu)
+			prop->menu->flags |= MENU_CHANGED;
+	}
+}
+
+static void sym_set_all_changed(void)
+{
+	struct symbol *sym;
+	int i;
+
+	for_all_symbols(i, sym)
+		sym_set_changed(sym);
+}
+
 static void sym_calc_visibility(struct symbol *sym)
 {
 	struct property *prop;
+	struct symbol *choice_sym = NULL;
 	tristate tri;
 
 	/* any prompt visible? */
 	tri = no;
+
+	if (sym_is_choice_value(sym))
+		choice_sym = prop_get_symbol(sym_get_choice_prop(sym));
+
 	for_all_prompts(sym, prop) {
 		prop->visible.tri = expr_calc_value(prop->visible.expr);
+		/*
+		 * Tristate choice_values with visibility 'mod' are
+		 * not visible if the corresponding choice's value is
+		 * 'yes'.
+		 */
+		if (choice_sym && sym->type == S_TRISTATE &&
+		    prop->visible.tri == mod && choice_sym->curr.tri == yes)
+			prop->visible.tri = no;
+
 		tri = EXPR_OR(tri, prop->visible.tri);
 	}
 	if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
@@ -447,28 +481,7 @@ void sym_clear_all_valid(void)
 	for_all_symbols(i, sym)
 		sym->flags &= ~SYMBOL_VALID;
 	sym_add_change_count(1);
-	if (modules_sym)
-		sym_calc_value(modules_sym);
-}
-
-void sym_set_changed(struct symbol *sym)
-{
-	struct property *prop;
-
-	sym->flags |= SYMBOL_CHANGED;
-	for (prop = sym->prop; prop; prop = prop->next) {
-		if (prop->menu)
-			prop->menu->flags |= MENU_CHANGED;
-	}
-}
-
-void sym_set_all_changed(void)
-{
-	struct symbol *sym;
-	int i;
-
-	for_all_symbols(i, sym)
-		sym_set_changed(sym);
+	sym_calc_value(modules_sym);
 }
 
 bool sym_tristate_within_range(struct symbol *sym, tristate val)
@@ -1117,6 +1130,8 @@ static void sym_check_print_recursive(struct symbol *last_sym)
 		if (stack->sym == last_sym)
 			fprintf(stderr, "%s:%d:error: recursive dependency detected!\n",
 				prop->file->name, prop->lineno);
+			fprintf(stderr, "For a resolution refer to Documentation/kbuild/kconfig-language.txt\n");
+			fprintf(stderr, "subsection \"Kconfig recursive dependency limitations\"\n");
 		if (stack->expr) {
 			fprintf(stderr, "%s:%d:\tsymbol %s %s value contains %s\n",
 				prop->file->name, prop->lineno,
@@ -1166,6 +1181,10 @@ static struct symbol *sym_check_expr_deps(struct expr *e)
 	case E_NOT:
 		return sym_check_expr_deps(e->left.expr);
 	case E_EQUAL:
+	case E_GEQ:
+	case E_GTH:
+	case E_LEQ:
+	case E_LTH:
 	case E_UNEQUAL:
 		sym = sym_check_deps(e->left.sym);
 		if (sym)
@@ -1337,6 +1356,8 @@ const char *prop_get_type_name(enum prop_type type)
 		return "range";
 	case P_SYMBOL:
 		return "symbol";
+	case P_RESET:
+		return "reset";
 	case P_UNKNOWN:
 		break;
 	}
diff --git a/scripts/config/util.c b/scripts/config/util.c
index 94f9c83e32..0e76042473 100644
--- a/scripts/config/util.c
+++ b/scripts/config/util.c
@@ -88,16 +88,6 @@ struct gstr str_new(void)
 	return gs;
 }
 
-/* Allocate and assign growable string */
-struct gstr str_assign(const char *s)
-{
-	struct gstr gs;
-	gs.s = strdup(s);
-	gs.len = strlen(s) + 1;
-	gs.max_width = 0;
-	return gs;
-}
-
 /* Free storage for growable string */
 void str_free(struct gstr *gs)
 {
diff --git a/scripts/config/zconf.gperf b/scripts/config/zconf.gperf
index 0f1025ad65..1a5c6728ed 100644
--- a/scripts/config/zconf.gperf
+++ b/scripts/config/zconf.gperf
@@ -21,6 +21,7 @@ comment,	T_COMMENT,	TF_COMMAND
 config,		T_CONFIG,	TF_COMMAND
 menuconfig,	T_MENUCONFIG,	TF_COMMAND
 help,		T_HELP,		TF_COMMAND
+---help---,	T_HELP,		TF_COMMAND
 if,		T_IF,		TF_COMMAND|TF_PARAM
 endif,		T_ENDIF,	TF_COMMAND
 depends,	T_DEPENDS,	TF_COMMAND
diff --git a/scripts/config/zconf.hash.c_shipped b/scripts/config/zconf.hash.c_shipped
index 73b5c8cebd..2c6ae7be1c 100644
--- a/scripts/config/zconf.hash.c_shipped
+++ b/scripts/config/zconf.hash.c_shipped
@@ -1,5 +1,5 @@
 /* ANSI-C code produced by gperf version 3.0.3 */
-/* Command-line: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/gperf  */
+/* Command-line: gperf  */
 /* Computed positions: -k'1,3' */
 
 #if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
@@ -48,7 +48,7 @@ kconf_id_hash (register const char *str, register unsigned int len)
       49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
       49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
       49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
-      49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
+      49, 49, 49, 49, 49, 10, 49, 49, 49, 49,
       49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
       49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
       49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
@@ -71,7 +71,7 @@ kconf_id_hash (register const char *str, register unsigned int len)
       49, 49, 49, 49, 49, 49, 49, 49, 49, 49,
       49, 49, 49, 49, 49, 49
     };
-  register unsigned int hval = len;
+  register int hval = len;
 
   switch (hval)
     {
@@ -111,6 +111,7 @@ struct kconf_id_strings_t
     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_str30[sizeof("---help---")];
     char kconf_id_strings_str31[sizeof("source")];
     char kconf_id_strings_str32[sizeof("comment")];
     char kconf_id_strings_str33[sizeof("hex")];
@@ -148,6 +149,7 @@ static struct kconf_id_strings_t kconf_id_strings_contents =
     "modules",
     "tristate",
     "menu",
+    "---help---",
     "source",
     "comment",
     "hex",
@@ -161,12 +163,18 @@ static struct kconf_id_strings_t kconf_id_strings_contents =
     "mainmenu"
   };
 #define kconf_id_strings ((const char *) &kconf_id_strings_contents)
+#ifdef __GNUC__
+__inline
+#ifdef __GNUC_STDC_INLINE__
+__attribute__ ((__gnu_inline__))
+#endif
+#endif
 struct kconf_id *
 kconf_id_lookup (register const char *str, register unsigned int len)
 {
   enum
     {
-      TOTAL_KEYWORDS = 34,
+      TOTAL_KEYWORDS = 35,
       MIN_WORD_LENGTH = 2,
       MAX_WORD_LENGTH = 14,
       MIN_HASH_VALUE = 2,
@@ -176,56 +184,56 @@ kconf_id_lookup (register const char *str, register unsigned int len)
   static struct kconf_id wordlist[] =
     {
       {-1}, {-1},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str2),		T_ON,		TF_PARAM},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str2,		T_ON,		TF_PARAM},
       {-1}, {-1},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str5),		T_ENDIF,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str6),		T_OPTION,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str7),	T_ENDMENU,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str8),	T_OPTIONAL,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str9),	T_ENDCHOICE,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str10),		T_RANGE,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str11),		T_CHOICE,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str12),	T_DEFAULT,	TF_COMMAND, S_UNKNOWN},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str13),	T_DEFAULT,	TF_COMMAND, S_BOOLEAN},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str14),		T_HELP,		TF_COMMAND},
+      {(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},
+      {(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},
+      {(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},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str16),		T_CONFIG,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str17),	T_DEFAULT,	TF_COMMAND, S_TRISTATE},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str18),		T_OPT_ENV,	TF_OPTION},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str19),	T_OPT_DEFCONFIG_LIST,TF_OPTION},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str20),		T_RESET,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str21),		T_TYPE,		TF_COMMAND, S_STRING},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str22),		T_IF,		TF_COMMAND|TF_PARAM},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str23),		T_TYPE,		TF_COMMAND, S_INT},
+      {(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_OPT_ENV,	TF_OPTION},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str19,	T_OPT_DEFCONFIG_LIST,TF_OPTION},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str20,		T_RESET,	TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str21,		T_TYPE,		TF_COMMAND, S_STRING},
+      {(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},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str26),		T_SELECT,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str27),	T_OPT_MODULES,	TF_OPTION},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str28),	T_TYPE,		TF_COMMAND, S_TRISTATE},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str29),		T_MENU,		TF_COMMAND},
-      {-1},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str31),		T_SOURCE,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str32),	T_COMMENT,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str33),		T_TYPE,		TF_COMMAND, S_HEX},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str26,		T_SELECT,	TF_COMMAND},
+      {(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},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str29,		T_MENU,		TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str30,	T_HELP,		TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str31,		T_SOURCE,	TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str32,	T_COMMENT,	TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str33,		T_TYPE,		TF_COMMAND, S_HEX},
       {-1},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str35),	T_MENUCONFIG,	TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str35,	T_MENUCONFIG,	TF_COMMAND},
       {-1},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str37),	T_VISIBLE,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str38),	T_OPT_ALLNOCONFIG_Y,TF_OPTION},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str37,	T_VISIBLE,	TF_COMMAND},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str38,	T_OPT_ALLNOCONFIG_Y,TF_OPTION},
       {-1}, {-1},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str41),		T_PROMPT,	TF_COMMAND},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str42),	T_DEPENDS,	TF_COMMAND},
+      {(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},
       {-1},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str44),		T_TYPE,		TF_COMMAND, S_BOOLEAN},
+      {(int)(long)&((struct kconf_id_strings_t *)0)->kconf_id_strings_str44,		T_TYPE,		TF_COMMAND, S_BOOLEAN},
       {-1}, {-1},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str47),	T_TYPE,		TF_COMMAND, S_BOOLEAN},
-      {offsetof(struct kconf_id_strings_t, kconf_id_strings_str48),	T_MAINMENU,	TF_COMMAND}
+      {(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}
     };
 
   if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
     {
-      unsigned int key = kconf_id_hash (str, len);
+      register int key = kconf_id_hash (str, len);
 
-      if (key <= MAX_HASH_VALUE)
+      if (key <= MAX_HASH_VALUE && key >= 0)
         {
           register int o = wordlist[key].name;
           if (o >= 0)
diff --git a/scripts/config/zconf.l b/scripts/config/zconf.l
index 7c7baefda7..44d895fb24 100644
--- a/scripts/config/zconf.l
+++ b/scripts/config/zconf.l
@@ -68,9 +68,16 @@ static void alloc_string(const char *str, int size)
 	memcpy(text, str, size);
 	text[size] = 0;
 }
+
+static void warn_ignored_character(char chr)
+{
+	fprintf(stderr,
+	        "%s:%d:warning: ignoring unsupported character '%c'\n",
+	        zconf_curname(), zconf_lineno(), chr);
+}
 %}
 
-n	[A-Za-z0-9_]
+n	[A-Za-z0-9_-]
 
 %%
 	int str = 0;
@@ -108,7 +115,7 @@ n	[A-Za-z0-9_]
 		zconflval.string = text;
 		return T_WORD;
 	}
-	.
+	.	warn_ignored_character(*yytext);
 	\n	{
 		BEGIN(INITIAL);
 		current_file->lineno++;
@@ -124,14 +131,17 @@ n	[A-Za-z0-9_]
 	"!"	return T_NOT;
 	"="	return T_EQUAL;
 	"!="	return T_UNEQUAL;
+	"<="	return T_LESS_EQUAL;
+	">="	return T_GREATER_EQUAL;
+	"<"	return T_LESS;
+	">"	return T_GREATER;
 	\"|\'	{
 		str = yytext[0];
 		new_string();
 		BEGIN(STRING);
 	}
 	\n	BEGIN(INITIAL); current_file->lineno++; return T_EOL;
-	---	/* ignore */
-	({n}|[-/.])+	{
+	({n}|[/.])+	{
 		const struct kconf_id *id = kconf_id_lookup(yytext, yyleng);
 		if (id && id->flags & TF_PARAM) {
 			zconflval.id = id;
@@ -143,7 +153,8 @@ n	[A-Za-z0-9_]
 	}
 	#.*	/* comment */
 	\\\n	current_file->lineno++;
-	.
+	[[:blank:]]+
+	.	warn_ignored_character(*yytext);
 	<<EOF>> {
 		BEGIN(INITIAL);
 	}
diff --git a/scripts/config/zconf.tab.c_shipped b/scripts/config/zconf.tab.c_shipped
index 9989df6773..52c9d40a05 100644
--- a/scripts/config/zconf.tab.c_shipped
+++ b/scripts/config/zconf.tab.c_shipped
@@ -1,14 +1,13 @@
-/* A Bison parser, made by GNU Bison 2.3.  */
+/* A Bison parser, made by GNU Bison 3.0.4.  */
 
-/* Skeleton implementation for Bison's Yacc-like parsers in C
+/* Bison implementation for 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, 2000-2015 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   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
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -16,9 +15,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* As a special exception, you may create a larger work that contains
    part or all of the Bison parser skeleton and distribute that work
@@ -47,7 +44,7 @@
 #define YYBISON 1
 
 /* Bison version.  */
-#define YYBISON_VERSION "2.3"
+#define YYBISON_VERSION "3.0.4"
 
 /* Skeleton name.  */
 #define YYSKELETON_NAME "yacc.c"
@@ -55,99 +52,22 @@
 /* Pure parsers.  */
 #define YYPURE 0
 
-/* Using locations.  */
-#define YYLSP_NEEDED 0
+/* Push parsers.  */
+#define YYPUSH 0
 
-/* Substitute the variable and function names.  */
-#define yyparse zconfparse
-#define yylex   zconflex
-#define yyerror zconferror
-#define yylval  zconflval
-#define yychar  zconfchar
-#define yydebug zconfdebug
-#define yynerrs zconfnerrs
-
-
-/* Tokens.  */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
-   /* Put the tokens into the symbol table, so that GDB and other debuggers
-      know about them.  */
-   enum yytokentype {
-     T_MAINMENU = 258,
-     T_MENU = 259,
-     T_ENDMENU = 260,
-     T_SOURCE = 261,
-     T_CHOICE = 262,
-     T_ENDCHOICE = 263,
-     T_COMMENT = 264,
-     T_CONFIG = 265,
-     T_MENUCONFIG = 266,
-     T_HELP = 267,
-     T_HELPTEXT = 268,
-     T_IF = 269,
-     T_ENDIF = 270,
-     T_DEPENDS = 271,
-     T_OPTIONAL = 272,
-     T_PROMPT = 273,
-     T_TYPE = 274,
-     T_DEFAULT = 275,
-     T_SELECT = 276,
-     T_RANGE = 277,
-     T_VISIBLE = 278,
-     T_OPTION = 279,
-     T_ON = 280,
-     T_RESET = 281,
-     T_WORD = 282,
-     T_WORD_QUOTE = 283,
-     T_UNEQUAL = 284,
-     T_CLOSE_PAREN = 285,
-     T_OPEN_PAREN = 286,
-     T_EOL = 287,
-     T_OR = 288,
-     T_AND = 289,
-     T_EQUAL = 290,
-     T_NOT = 291
-   };
-#endif
-/* Tokens.  */
-#define T_MAINMENU 258
-#define T_MENU 259
-#define T_ENDMENU 260
-#define T_SOURCE 261
-#define T_CHOICE 262
-#define T_ENDCHOICE 263
-#define T_COMMENT 264
-#define T_CONFIG 265
-#define T_MENUCONFIG 266
-#define T_HELP 267
-#define T_HELPTEXT 268
-#define T_IF 269
-#define T_ENDIF 270
-#define T_DEPENDS 271
-#define T_OPTIONAL 272
-#define T_PROMPT 273
-#define T_TYPE 274
-#define T_DEFAULT 275
-#define T_SELECT 276
-#define T_RANGE 277
-#define T_VISIBLE 278
-#define T_OPTION 279
-#define T_ON 280
-#define T_RESET 281
-#define T_WORD 282
-#define T_WORD_QUOTE 283
-#define T_UNEQUAL 284
-#define T_CLOSE_PAREN 285
-#define T_OPEN_PAREN 286
-#define T_EOL 287
-#define T_OR 288
-#define T_AND 289
-#define T_EQUAL 290
-#define T_NOT 291
+/* Pull parsers.  */
+#define YYPULL 1
 
 
+/* Substitute the variable and function names.  */
+#define yyparse         zconfparse
+#define yylex           zconflex
+#define yyerror         zconferror
+#define yydebug         zconfdebug
+#define yynerrs         zconfnerrs
 
+#define yylval          zconflval
+#define yychar          zconfchar
 
 /* Copy the first part of user declarations.  */
 
@@ -185,10 +105,14 @@ static struct menu *current_menu, *current_entry;
 
 
 
-/* Enabling traces.  */
-#ifndef YYDEBUG
-# define YYDEBUG 0
-#endif
+
+# ifndef YY_NULLPTR
+#  if defined __cplusplus && 201103L <= __cplusplus
+#   define YY_NULLPTR nullptr
+#  else
+#   define YY_NULLPTR 0
+#  endif
+# endif
 
 /* Enabling verbose error messages.  */
 #ifdef YYERROR_VERBOSE
@@ -198,31 +122,89 @@ static struct menu *current_menu, *current_entry;
 # define YYERROR_VERBOSE 0
 #endif
 
-/* Enabling the token table.  */
-#ifndef YYTOKEN_TABLE
-# define YYTOKEN_TABLE 0
+
+/* Debug traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+#if YYDEBUG
+extern int zconfdebug;
+#endif
+
+/* Token type.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+  enum yytokentype
+  {
+    T_MAINMENU = 258,
+    T_MENU = 259,
+    T_ENDMENU = 260,
+    T_SOURCE = 261,
+    T_CHOICE = 262,
+    T_ENDCHOICE = 263,
+    T_COMMENT = 264,
+    T_CONFIG = 265,
+    T_MENUCONFIG = 266,
+    T_HELP = 267,
+    T_HELPTEXT = 268,
+    T_IF = 269,
+    T_ENDIF = 270,
+    T_DEPENDS = 271,
+    T_OPTIONAL = 272,
+    T_PROMPT = 273,
+    T_TYPE = 274,
+    T_DEFAULT = 275,
+    T_SELECT = 276,
+    T_RANGE = 277,
+    T_VISIBLE = 278,
+    T_OPTION = 279,
+    T_ON = 280,
+    T_RESET = 281,
+    T_WORD = 282,
+    T_WORD_QUOTE = 283,
+    T_UNEQUAL = 284,
+    T_LESS = 285,
+    T_LESS_EQUAL = 286,
+    T_GREATER = 287,
+    T_GREATER_EQUAL = 288,
+    T_CLOSE_PAREN = 289,
+    T_OPEN_PAREN = 290,
+    T_EOL = 291,
+    T_OR = 292,
+    T_AND = 293,
+    T_EQUAL = 294,
+    T_NOT = 295
+  };
 #endif
 
+/* Value type.  */
 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-typedef union YYSTYPE
 
+union YYSTYPE
 {
+
+
 	char *string;
 	struct file *file;
 	struct symbol *symbol;
 	struct expr *expr;
 	struct menu *menu;
 	const struct kconf_id *id;
-}
-/* Line 193 of yacc.c.  */
 
-	YYSTYPE;
-# define yystype YYSTYPE /* obsolescent; will be withdrawn */
-# define YYSTYPE_IS_DECLARED 1
+
+};
+
+typedef union YYSTYPE YYSTYPE;
 # define YYSTYPE_IS_TRIVIAL 1
+# define YYSTYPE_IS_DECLARED 1
 #endif
 
 
+extern YYSTYPE zconflval;
+
+int zconfparse (void);
+
+
 
 /* Copy the second part of user declarations.  */
 
@@ -231,8 +213,6 @@ typedef union YYSTYPE
 #include "zconf.hash.c"
 
 
-/* Line 216 of yacc.c.  */
-
 
 #ifdef short
 # undef short
@@ -246,11 +226,8 @@ typedef unsigned char yytype_uint8;
 
 #ifdef YYTYPE_INT8
 typedef YYTYPE_INT8 yytype_int8;
-#elif (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
-typedef signed char yytype_int8;
 #else
-typedef short int yytype_int8;
+typedef signed char yytype_int8;
 #endif
 
 #ifdef YYTYPE_UINT16
@@ -270,8 +247,7 @@ typedef short int yytype_int16;
 #  define YYSIZE_T __SIZE_TYPE__
 # elif defined size_t
 #  define YYSIZE_T size_t
-# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
+# elif ! defined YYSIZE_T
 #  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
 #  define YYSIZE_T size_t
 # else
@@ -285,39 +261,68 @@ typedef short int yytype_int16;
 # if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
-#   define YY_(msgid) dgettext ("bison-runtime", msgid)
+#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)
 #  endif
 # endif
 # ifndef YY_
-#  define YY_(msgid) msgid
+#  define YY_(Msgid) Msgid
+# endif
+#endif
+
+#ifndef YY_ATTRIBUTE
+# if (defined __GNUC__                                               \
+      && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__)))  \
+     || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
+#  define YY_ATTRIBUTE(Spec) __attribute__(Spec)
+# else
+#  define YY_ATTRIBUTE(Spec) /* empty */
+# endif
+#endif
+
+#ifndef YY_ATTRIBUTE_PURE
+# define YY_ATTRIBUTE_PURE   YY_ATTRIBUTE ((__pure__))
+#endif
+
+#ifndef YY_ATTRIBUTE_UNUSED
+# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
+#endif
+
+#if !defined _Noreturn \
+     && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
+# if defined _MSC_VER && 1200 <= _MSC_VER
+#  define _Noreturn __declspec (noreturn)
+# else
+#  define _Noreturn YY_ATTRIBUTE ((__noreturn__))
 # endif
 #endif
 
 /* Suppress unused-variable warnings by "using" E.  */
 #if ! defined lint || defined __GNUC__
-# define YYUSE(e) ((void) (e))
+# define YYUSE(E) ((void) (E))
 #else
-# define YYUSE(e) /* empty */
+# define YYUSE(E) /* empty */
 #endif
 
-/* Identity function, used to suppress warnings about constant conditions.  */
-#ifndef lint
-# define YYID(n) (n)
-#else
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
-static int
-YYID (int i)
+#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
+/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
+    _Pragma ("GCC diagnostic push") \
+    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
+    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
+    _Pragma ("GCC diagnostic pop")
 #else
-static int
-YYID (i)
-    int i;
+# define YY_INITIAL_VALUE(Value) Value
 #endif
-{
-  return i;
-}
+#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END
+#endif
+#ifndef YY_INITIAL_VALUE
+# define YY_INITIAL_VALUE(Value) /* Nothing. */
 #endif
 
+
 #if ! defined yyoverflow || YYERROR_VERBOSE
 
 /* The parser invokes alloca or malloc; define the necessary symbols.  */
@@ -335,11 +340,11 @@ YYID (i)
 #    define alloca _alloca
 #   else
 #    define YYSTACK_ALLOC alloca
-#    if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
+#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
 #     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#     ifndef _STDLIB_H
-#      define _STDLIB_H 1
+      /* Use EXIT_SUCCESS as a witness for stdlib.h.  */
+#     ifndef EXIT_SUCCESS
+#      define EXIT_SUCCESS 0
 #     endif
 #    endif
 #   endif
@@ -347,8 +352,8 @@ YYID (i)
 # endif
 
 # ifdef YYSTACK_ALLOC
-   /* Pacify GCC's `empty if-body' warning.  */
-#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+   /* Pacify GCC's 'empty if-body' warning.  */
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
 #  ifndef YYSTACK_ALLOC_MAXIMUM
     /* The OS might guarantee only one guard page at the bottom of the stack,
        and a page size can be as small as 4096 bytes.  So we cannot safely
@@ -362,25 +367,23 @@ YYID (i)
 #  ifndef YYSTACK_ALLOC_MAXIMUM
 #   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
 #  endif
-#  if (defined __cplusplus && ! defined _STDLIB_H \
+#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
        && ! ((defined YYMALLOC || defined malloc) \
-	     && (defined YYFREE || defined free)))
+             && (defined YYFREE || defined free)))
 #   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-#   ifndef _STDLIB_H
-#    define _STDLIB_H 1
+#   ifndef EXIT_SUCCESS
+#    define EXIT_SUCCESS 0
 #   endif
 #  endif
 #  ifndef YYMALLOC
 #   define YYMALLOC malloc
-#   if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
+#   if ! defined malloc && ! defined EXIT_SUCCESS
 void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif
 #  ifndef YYFREE
 #   define YYFREE free
-#   if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
+#   if ! defined free && ! defined EXIT_SUCCESS
 void free (void *); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif
@@ -390,14 +393,14 @@ void free (void *); /* INFRINGES ON USER NAME SPACE */
 
 #if (! defined yyoverflow \
      && (! defined __cplusplus \
-	 || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+         || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
 
 /* A type that is properly aligned for any stack member.  */
 union yyalloc
 {
-  yytype_int16 yyss;
-  YYSTYPE yyvs;
-  };
+  yytype_int16 yyss_alloc;
+  YYSTYPE yyvs_alloc;
+};
 
 /* The size of the maximum gap between one aligned stack and the next.  */
 # define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
@@ -408,64 +411,70 @@ union yyalloc
      ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
       + YYSTACK_GAP_MAXIMUM)
 
-/* Copy COUNT objects from FROM to TO.  The source and destination do
-   not overlap.  */
-# ifndef YYCOPY
-#  if defined __GNUC__ && 1 < __GNUC__
-#   define YYCOPY(To, From, Count) \
-      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
-#  else
-#   define YYCOPY(To, From, Count)		\
-      do					\
-	{					\
-	  YYSIZE_T yyi;				\
-	  for (yyi = 0; yyi < (Count); yyi++)	\
-	    (To)[yyi] = (From)[yyi];		\
-	}					\
-      while (YYID (0))
-#  endif
-# endif
+# define YYCOPY_NEEDED 1
 
 /* Relocate STACK from its old location to the new one.  The
    local variables YYSIZE and YYSTACKSIZE give the old and new number of
    elements in the stack, and YYPTR gives the new location of the
    stack.  Advance YYPTR to a properly aligned location for the next
    stack.  */
-# define YYSTACK_RELOCATE(Stack)					\
-    do									\
-      {									\
-	YYSIZE_T yynewbytes;						\
-	YYCOPY (&yyptr->Stack, Stack, yysize);				\
-	Stack = &yyptr->Stack;						\
-	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
-	yyptr += yynewbytes / sizeof (*yyptr);				\
-      }									\
-    while (YYID (0))
+# define YYSTACK_RELOCATE(Stack_alloc, Stack)                           \
+    do                                                                  \
+      {                                                                 \
+        YYSIZE_T yynewbytes;                                            \
+        YYCOPY (&yyptr->Stack_alloc, Stack, yysize);                    \
+        Stack = &yyptr->Stack_alloc;                                    \
+        yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+        yyptr += yynewbytes / sizeof (*yyptr);                          \
+      }                                                                 \
+    while (0)
 
 #endif
 
+#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
+/* Copy COUNT objects from SRC to DST.  The source and destination do
+   not overlap.  */
+# ifndef YYCOPY
+#  if defined __GNUC__ && 1 < __GNUC__
+#   define YYCOPY(Dst, Src, Count) \
+      __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
+#  else
+#   define YYCOPY(Dst, Src, Count)              \
+      do                                        \
+        {                                       \
+          YYSIZE_T yyi;                         \
+          for (yyi = 0; yyi < (Count); yyi++)   \
+            (Dst)[yyi] = (Src)[yyi];            \
+        }                                       \
+      while (0)
+#  endif
+# endif
+#endif /* !YYCOPY_NEEDED */
+
 /* YYFINAL -- State number of the termination state.  */
 #define YYFINAL  11
 /* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   308
+#define YYLAST   313
 
 /* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  37
+#define YYNTOKENS  41
 /* YYNNTS -- Number of nonterminals.  */
 #define YYNNTS  50
 /* YYNRULES -- Number of rules.  */
-#define YYNRULES  121
-/* YYNRULES -- Number of states.  */
-#define YYNSTATES  197
+#define YYNRULES  125
+/* YYNSTATES -- Number of states.  */
+#define YYNSTATES  205
 
-/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
+   by yylex, with out-of-bounds checking.  */
 #define YYUNDEFTOK  2
-#define YYMAXUTOK   291
+#define YYMAXUTOK   295
 
-#define YYTRANSLATE(YYX)						\
+#define YYTRANSLATE(YYX)                                                \
   ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
 
-/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
+/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
+   as returned by yylex, without out-of-bounds checking.  */
 static const yytype_uint8 yytranslate[] =
 {
        0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
@@ -497,90 +506,30 @@ static const yytype_uint8 yytranslate[] =
        5,     6,     7,     8,     9,    10,    11,    12,    13,    14,
       15,    16,    17,    18,    19,    20,    21,    22,    23,    24,
       25,    26,    27,    28,    29,    30,    31,    32,    33,    34,
-      35,    36
+      35,    36,    37,    38,    39,    40
 };
 
 #if YYDEBUG
-/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
-   YYRHS.  */
-static const yytype_uint16 yyprhs[] =
-{
-       0,     0,     3,     6,     8,    11,    13,    14,    17,    20,
-      23,    26,    31,    36,    40,    42,    44,    46,    48,    50,
-      52,    54,    56,    58,    60,    62,    64,    66,    68,    70,
-      74,    77,    81,    84,    88,    91,    92,    95,    98,   101,
-     104,   107,   110,   114,   119,   124,   129,   135,   139,   140,
-     144,   145,   148,   152,   155,   157,   161,   162,   165,   168,
-     171,   174,   177,   182,   186,   189,   193,   198,   199,   202,
-     206,   208,   212,   213,   216,   219,   222,   226,   230,   234,
-     236,   240,   241,   244,   247,   250,   254,   258,   261,   264,
-     267,   268,   271,   274,   277,   282,   286,   287,   290,   293,
-     296,   297,   300,   302,   304,   307,   310,   313,   315,   318,
-     319,   322,   324,   328,   332,   336,   339,   343,   347,   349,
-     351,   352
-};
-
-/* YYRHS -- A `-1'-separated list of the rules' RHS.  */
-static const yytype_int8 yyrhs[] =
-{
-      38,     0,    -1,    82,    39,    -1,    39,    -1,    64,    40,
-      -1,    40,    -1,    -1,    40,    42,    -1,    40,    56,    -1,
-      40,    68,    -1,    40,    81,    -1,    40,    27,     1,    32,
-      -1,    40,    41,     1,    32,    -1,    40,     1,    32,    -1,
-      16,    -1,    18,    -1,    19,    -1,    21,    -1,    17,    -1,
-      22,    -1,    20,    -1,    23,    -1,    26,    -1,    32,    -1,
-      62,    -1,    72,    -1,    45,    -1,    47,    -1,    70,    -1,
-      27,     1,    32,    -1,     1,    32,    -1,    10,    27,    32,
-      -1,    44,    48,    -1,    11,    27,    32,    -1,    46,    48,
-      -1,    -1,    48,    49,    -1,    48,    50,    -1,    48,    76,
-      -1,    48,    74,    -1,    48,    43,    -1,    48,    32,    -1,
-      19,    79,    32,    -1,    18,    80,    83,    32,    -1,    20,
-      84,    83,    32,    -1,    21,    27,    83,    32,    -1,    22,
-      85,    85,    83,    32,    -1,    24,    51,    32,    -1,    -1,
-      51,    27,    52,    -1,    -1,    35,    80,    -1,     7,    86,
-      32,    -1,    53,    57,    -1,    81,    -1,    54,    59,    55,
-      -1,    -1,    57,    58,    -1,    57,    76,    -1,    57,    74,
-      -1,    57,    32,    -1,    57,    43,    -1,    18,    80,    83,
-      32,    -1,    19,    79,    32,    -1,    17,    32,    -1,    26,
-      83,    32,    -1,    20,    27,    83,    32,    -1,    -1,    59,
-      42,    -1,    14,    84,    82,    -1,    81,    -1,    60,    63,
-      61,    -1,    -1,    63,    42,    -1,    63,    68,    -1,    63,
-      56,    -1,     3,    80,    82,    -1,     4,    80,    32,    -1,
-      65,    77,    75,    -1,    81,    -1,    66,    69,    67,    -1,
-      -1,    69,    42,    -1,    69,    68,    -1,    69,    56,    -1,
-       6,    80,    32,    -1,     9,    80,    32,    -1,    71,    75,
-      -1,    12,    32,    -1,    73,    13,    -1,    -1,    75,    76,
-      -1,    75,    32,    -1,    75,    43,    -1,    16,    25,    84,
-      32,    -1,    16,    84,    32,    -1,    -1,    77,    78,    -1,
-      77,    32,    -1,    23,    83,    -1,    -1,    80,    83,    -1,
-      27,    -1,    28,    -1,     5,    32,    -1,     8,    32,    -1,
-      15,    32,    -1,    32,    -1,    82,    32,    -1,    -1,    14,
-      84,    -1,    85,    -1,    85,    35,    85,    -1,    85,    29,
-      85,    -1,    31,    84,    30,    -1,    36,    84,    -1,    84,
-      33,    84,    -1,    84,    34,    84,    -1,    27,    -1,    28,
-      -1,    -1,    27,    -1
-};
-
-/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
+  /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
 static const yytype_uint16 yyrline[] =
 {
-       0,   104,   104,   104,   106,   106,   108,   110,   111,   112,
-     113,   114,   115,   119,   123,   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,   305,   315,   317,   322,
-     330,   338,   341,   343,   344,   345,   350,   357,   364,   369,
-     377,   380,   382,   383,   384,   387,   395,   402,   409,   415,
-     422,   424,   425,   426,   429,   433,   441,   443,   444,   447,
-     454,   456,   461,   462,   465,   466,   467,   471,   472,   475,
-     476,   479,   480,   481,   482,   483,   484,   485,   488,   489,
-     492,   493
+       0,   109,   109,   109,   111,   111,   113,   115,   116,   117,
+     118,   119,   120,   124,   128,   128,   128,   128,   128,   128,
+     128,   128,   128,   132,   133,   134,   135,   136,   137,   141,
+     142,   148,   156,   162,   170,   180,   182,   183,   184,   185,
+     186,   187,   190,   198,   204,   214,   220,   226,   229,   231,
+     242,   243,   248,   257,   262,   270,   273,   275,   276,   277,
+     278,   279,   282,   288,   299,   305,   310,   320,   322,   327,
+     335,   343,   346,   348,   349,   350,   355,   362,   369,   374,
+     382,   385,   387,   388,   389,   392,   400,   407,   414,   420,
+     427,   429,   430,   431,   434,   438,   446,   448,   449,   452,
+     459,   461,   466,   467,   470,   471,   472,   476,   477,   480,
+     481,   484,   485,   486,   487,   488,   489,   490,   491,   492,
+     493,   494,   497,   498,   501,   502
 };
 #endif
 
-#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+#if YYDEBUG || YYERROR_VERBOSE || 0
 /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
    First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
 static const char *const yytname[] =
@@ -590,334 +539,293 @@ static const char *const yytname[] =
   "T_MENUCONFIG", "T_HELP", "T_HELPTEXT", "T_IF", "T_ENDIF", "T_DEPENDS",
   "T_OPTIONAL", "T_PROMPT", "T_TYPE", "T_DEFAULT", "T_SELECT", "T_RANGE",
   "T_VISIBLE", "T_OPTION", "T_ON", "T_RESET", "T_WORD", "T_WORD_QUOTE",
-  "T_UNEQUAL", "T_CLOSE_PAREN", "T_OPEN_PAREN", "T_EOL", "T_OR", "T_AND",
-  "T_EQUAL", "T_NOT", "$accept", "input", "start", "stmt_list",
-  "option_name", "common_stmt", "option_error", "config_entry_start",
-  "config_stmt", "menuconfig_entry_start", "menuconfig_stmt",
-  "config_option_list", "config_option", "symbol_option",
-  "symbol_option_list", "symbol_option_arg", "choice", "choice_entry",
-  "choice_end", "choice_stmt", "choice_option_list", "choice_option",
-  "choice_block", "if_entry", "if_end", "if_stmt", "if_block",
-  "mainmenu_stmt", "menu", "menu_entry", "menu_end", "menu_stmt",
-  "menu_block", "source_stmt", "comment", "comment_stmt", "help_start",
-  "help", "depends_list", "depends", "visibility_list", "visible",
-  "prompt_stmt_opt", "prompt", "end", "nl", "if_expr", "expr", "symbol",
-  "word_opt", 0
+  "T_UNEQUAL", "T_LESS", "T_LESS_EQUAL", "T_GREATER", "T_GREATER_EQUAL",
+  "T_CLOSE_PAREN", "T_OPEN_PAREN", "T_EOL", "T_OR", "T_AND", "T_EQUAL",
+  "T_NOT", "$accept", "input", "start", "stmt_list", "option_name",
+  "common_stmt", "option_error", "config_entry_start", "config_stmt",
+  "menuconfig_entry_start", "menuconfig_stmt", "config_option_list",
+  "config_option", "symbol_option", "symbol_option_list",
+  "symbol_option_arg", "choice", "choice_entry", "choice_end",
+  "choice_stmt", "choice_option_list", "choice_option", "choice_block",
+  "if_entry", "if_end", "if_stmt", "if_block", "mainmenu_stmt", "menu",
+  "menu_entry", "menu_end", "menu_stmt", "menu_block", "source_stmt",
+  "comment", "comment_stmt", "help_start", "help", "depends_list",
+  "depends", "visibility_list", "visible", "prompt_stmt_opt", "prompt",
+  "end", "nl", "if_expr", "expr", "symbol", "word_opt", YY_NULLPTR
 };
 #endif
 
 # ifdef YYPRINT
-/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
-   token YYLEX-NUM.  */
+/* YYTOKNUM[NUM] -- (External) token number corresponding to the
+   (internal) symbol number NUM (which must be that of a token).  */
 static const yytype_uint16 yytoknum[] =
 {
        0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
      265,   266,   267,   268,   269,   270,   271,   272,   273,   274,
      275,   276,   277,   278,   279,   280,   281,   282,   283,   284,
-     285,   286,   287,   288,   289,   290,   291
+     285,   286,   287,   288,   289,   290,   291,   292,   293,   294,
+     295
 };
 # endif
 
-/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
-static const yytype_uint8 yyr1[] =
-{
-       0,    37,    38,    38,    39,    39,    40,    40,    40,    40,
-      40,    40,    40,    40,    41,    41,    41,    41,    41,    41,
-      41,    41,    41,    42,    42,    42,    42,    42,    42,    43,
-      43,    44,    45,    46,    47,    48,    48,    48,    48,    48,
-      48,    48,    49,    49,    49,    49,    49,    50,    51,    51,
-      52,    52,    53,    54,    55,    56,    57,    57,    57,    57,
-      57,    57,    58,    58,    58,    58,    58,    59,    59,    60,
-      61,    62,    63,    63,    63,    63,    64,    65,    66,    67,
-      68,    69,    69,    69,    69,    70,    71,    72,    73,    74,
-      75,    75,    75,    75,    76,    76,    77,    77,    77,    78,
-      79,    79,    80,    80,    81,    81,    81,    82,    82,    83,
-      83,    84,    84,    84,    84,    84,    84,    84,    85,    85,
-      86,    86
-};
+#define YYPACT_NINF -119
 
-/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
-static const yytype_uint8 yyr2[] =
+#define yypact_value_is_default(Yystate) \
+  (!!((Yystate) == (-119)))
+
+#define YYTABLE_NINF -88
+
+#define yytable_value_is_error(Yytable_value) \
+  0
+
+  /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+     STATE-NUM.  */
+static const yytype_int16 yypact[] =
 {
-       0,     2,     2,     1,     2,     1,     0,     2,     2,     2,
-       2,     4,     4,     3,     1,     1,     1,     1,     1,     1,
-       1,     1,     1,     1,     1,     1,     1,     1,     1,     3,
-       2,     3,     2,     3,     2,     0,     2,     2,     2,     2,
-       2,     2,     3,     4,     4,     4,     5,     3,     0,     3,
-       0,     2,     3,     2,     1,     3,     0,     2,     2,     2,
-       2,     2,     4,     3,     2,     3,     4,     0,     2,     3,
-       1,     3,     0,     2,     2,     2,     3,     3,     3,     1,
-       3,     0,     2,     2,     2,     3,     3,     2,     2,     2,
-       0,     2,     2,     2,     4,     3,     0,     2,     2,     2,
-       0,     2,     1,     1,     2,     2,     2,     1,     2,     0,
-       2,     1,     3,     3,     3,     2,     3,     3,     1,     1,
-       0,     1
+       6,    44,  -119,    13,  -119,   173,  -119,    19,  -119,  -119,
+      -9,  -119,     5,    44,    21,    44,     9,    29,    44,    41,
+      48,    62,    56,  -119,  -119,  -119,  -119,  -119,  -119,  -119,
+    -119,  -119,    79,  -119,    95,  -119,  -119,  -119,  -119,  -119,
+    -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,
+    -119,  -119,   206,  -119,  -119,    64,  -119,    67,  -119,    69,
+    -119,   105,  -119,   116,   128,   140,  -119,  -119,    62,    62,
+      98,   266,  -119,   149,   150,   106,   139,   253,    73,    24,
+      22,    24,   230,  -119,  -119,  -119,  -119,  -119,  -119,    57,
+    -119,    62,    62,    64,    58,    58,    58,    58,    58,    58,
+    -119,  -119,   161,   165,    34,    44,    44,    62,   104,    58,
+    -119,   201,  -119,  -119,  -119,  -119,   190,  -119,  -119,   168,
+      44,    44,   178,   194,  -119,  -119,  -119,  -119,  -119,  -119,
+    -119,  -119,  -119,  -119,  -119,  -119,  -119,   194,  -119,   277,
+    -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,
+     180,  -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,
+      62,   131,   194,   183,   194,    12,   194,    58,    16,   207,
+    -119,  -119,   194,   219,   194,    62,   224,  -119,   134,  -119,
+     238,  -119,  -119,   239,   240,   194,   251,  -119,  -119,   241,
+    -119,   258,   100,  -119,  -119,  -119,  -119,  -119,   264,    44,
+    -119,  -119,  -119,  -119,  -119
 };
 
-/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
-   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
-   means the default is an error.  */
+  /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
+     Performed when YYTABLE does not specify something else to do.  Zero
+     means the default is an error.  */
 static const yytype_uint8 yydefact[] =
 {
        6,     0,   107,     0,     3,     0,     6,     6,   102,   103,
-       0,     1,     0,     0,     0,     0,   120,     0,     0,     0,
+       0,     1,     0,     0,     0,     0,   124,     0,     0,     0,
        0,     0,     0,    14,    18,    15,    16,    20,    17,    19,
       21,    22,     0,    23,     0,     7,    35,    26,    35,    27,
       56,    67,     8,    72,    24,    96,    81,     9,    28,    90,
       25,    10,     0,   108,     2,    76,    13,     0,   104,     0,
-     121,     0,   105,     0,     0,     0,   118,   119,     0,     0,
+     125,     0,   105,     0,     0,     0,   122,   123,     0,     0,
        0,   111,   106,     0,     0,     0,     0,     0,     0,     0,
       90,     0,     0,    77,    85,    52,    86,    31,    33,     0,
-     115,     0,     0,    69,     0,     0,    11,    12,     0,     0,
-       0,     0,   100,     0,     0,     0,    48,     0,    41,    40,
-      36,    37,     0,    39,    38,     0,     0,   100,     0,   109,
-      60,    61,    57,    59,    58,    68,    55,    54,    73,    75,
-      71,    74,    70,   109,    98,     0,    97,    82,    84,    80,
-      83,    79,    92,    93,    91,   114,   116,   117,   113,   112,
-      30,    88,     0,     0,   109,     0,   109,   109,   109,     0,
-       0,     0,    89,    64,   109,     0,   109,     0,     0,    99,
-       0,    95,     0,    42,   101,     0,     0,   109,    50,    47,
-      29,     0,    63,     0,   110,    65,    94,    43,    44,    45,
-       0,     0,    49,    62,    66,    46,    51
-};
-
-/* YYDEFGOTO[NTERM-NUM].  */
-static const yytype_int16 yydefgoto[] =
-{
-      -1,     3,     4,     5,    34,    35,   109,    36,    37,    38,
-      39,    75,   110,   111,   160,   192,    40,    41,   126,    42,
-      77,   122,    78,    43,   130,    44,    79,     6,    45,    46,
-     139,    47,    81,    48,    49,    50,   112,   113,    82,   114,
-      80,   136,   155,   156,    51,     7,   168,    70,    71,    61
+     119,     0,     0,    69,     0,     0,     0,     0,     0,     0,
+      11,    12,     0,     0,     0,     0,   100,     0,     0,     0,
+      48,     0,    41,    40,    36,    37,     0,    39,    38,     0,
+       0,   100,     0,   109,    60,    61,    57,    59,    58,    68,
+      55,    54,    73,    75,    71,    74,    70,   109,    98,     0,
+      97,    82,    84,    80,    83,    79,    92,    93,    91,   118,
+     120,   121,   117,   112,   113,   114,   115,   116,    30,    88,
+       0,     0,   109,     0,   109,   109,   109,     0,     0,     0,
+      89,    64,   109,     0,   109,     0,     0,    99,     0,    95,
+       0,    42,   101,     0,     0,   109,    50,    47,    29,     0,
+      63,     0,   110,    65,    94,    43,    44,    45,     0,     0,
+      49,    62,    66,    46,    51
 };
 
-/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
-   STATE-NUM.  */
-#define YYPACT_NINF -127
-static const yytype_int16 yypact[] =
+  /* YYPGOTO[NTERM-NUM].  */
+static const yytype_int16 yypgoto[] =
 {
-       7,    30,  -127,     9,  -127,   160,  -127,    13,  -127,  -127,
-     -13,  -127,    14,    30,    17,    30,    -4,    21,    30,    35,
-      38,    16,    43,  -127,  -127,  -127,  -127,  -127,  -127,  -127,
-    -127,  -127,    82,  -127,    91,  -127,  -127,  -127,  -127,  -127,
-    -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,
-    -127,  -127,   193,  -127,  -127,    72,  -127,    73,  -127,    95,
-    -127,    98,  -127,   101,   112,   124,  -127,  -127,    16,    16,
-      63,    19,  -127,   127,   130,   102,   131,    62,   276,   265,
-       4,   265,   222,  -127,  -127,  -127,  -127,  -127,  -127,    26,
-    -127,    16,    16,    72,    71,    71,  -127,  -127,   152,   153,
-      -7,    30,    30,    16,   161,    71,  -127,   194,  -127,  -127,
-    -127,  -127,   183,  -127,  -127,   173,    30,    30,   179,   203,
-    -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,
-    -127,  -127,  -127,   203,  -127,   251,  -127,  -127,  -127,  -127,
-    -127,  -127,  -127,  -127,  -127,  -127,   184,  -127,  -127,  -127,
-    -127,  -127,    16,   260,   203,   189,   203,     8,   203,    71,
-      23,   192,  -127,  -127,   203,   202,   203,    16,   214,  -127,
-     266,  -127,   215,  -127,  -127,   218,   219,   203,   200,  -127,
-    -127,   221,  -127,   231,   139,  -127,  -127,  -127,  -127,  -127,
-     232,    30,  -127,  -127,  -127,  -127,  -127
+    -119,  -119,   294,   296,  -119,   -15,   -66,  -119,  -119,  -119,
+    -119,   265,  -119,  -119,  -119,  -119,  -119,  -119,  -119,   -58,
+    -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,  -119,
+    -119,   -28,  -119,  -119,  -119,  -119,  -119,   229,   227,   -62,
+    -119,  -119,   187,    -1,    20,     0,  -118,   -67,   -91,  -119
 };
 
-/* YYPGOTO[NTERM-NUM].  */
-static const yytype_int16 yypgoto[] =
+  /* YYDEFGOTO[NTERM-NUM].  */
+static const yytype_int16 yydefgoto[] =
 {
-    -127,  -127,   261,   271,  -127,     6,   -71,  -127,  -127,  -127,
-    -127,   250,  -127,  -127,  -127,  -127,  -127,  -127,  -127,   -46,
-    -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,  -127,
-    -127,   110,  -127,  -127,  -127,  -127,  -127,   212,   216,   -69,
-    -127,  -127,   178,    -1,    12,    -9,  -126,   -66,   -90,  -127
+      -1,     3,     4,     5,    34,    35,   113,    36,    37,    38,
+      39,    75,   114,   115,   168,   200,    40,    41,   130,    42,
+      77,   126,    78,    43,   134,    44,    79,     6,    45,    46,
+     143,    47,    81,    48,    49,    50,   116,   117,    82,   118,
+      80,   140,   163,   164,    51,     7,   176,    70,    71,    61
 };
 
-/* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
-   positive, shift that token.  If negative, reduce the rule which
-   number is the opposite.  If zero, do what YYDEFACT says.
-   If YYTABLE_NINF, syntax error.  */
-#define YYTABLE_NINF -88
+  /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If
+     positive, shift that token.  If negative, reduce the rule whose
+     number is the opposite.  If YYTABLE_NINF, syntax error.  */
 static const yytype_int16 yytable[] =
 {
-      10,    55,    89,    90,   148,   149,   121,   169,   124,    11,
-       1,   143,    57,   144,    59,   159,     1,    63,   152,     2,
-      66,    67,   167,    60,    68,   146,   147,   133,   172,    69,
-     174,   175,   176,   129,   153,   138,   134,   157,   181,     2,
-     183,    91,    92,    66,    67,    53,    56,    68,    94,    58,
-     178,   190,    69,    62,    95,   179,   145,     8,     9,    91,
-      92,    93,    64,    98,   143,    65,   144,   -53,   -53,   177,
-     -53,   -53,   -53,   -53,    99,    72,   -53,   -53,   100,   115,
-     116,   117,   118,    73,   125,   128,   170,   137,   119,   107,
-     127,   132,    74,   141,   120,     2,    91,    92,    66,    67,
-     154,   184,   -32,    98,    53,    83,   -32,   -32,   -32,   -32,
-     -32,   -32,   -32,   -32,    99,   164,   -32,   -32,   100,   -32,
-     101,   102,   103,   104,   105,   -32,   106,    84,   -32,   107,
-      85,   -34,    98,    86,   108,   -34,   -34,   -34,   -34,   -34,
-     -34,   -34,   -34,    99,    87,   -34,   -34,   100,   -34,   101,
-     102,   103,   104,   105,   -34,   106,    88,   -34,   107,    96,
-      -5,    12,    97,   108,    13,    14,    15,    16,    17,    18,
-      19,    20,    91,    92,    21,    22,    23,    24,    25,    26,
-      27,    28,    29,    30,   150,   151,    31,    32,   158,   131,
-     196,   140,    33,    -4,    12,   161,   162,    13,    14,    15,
-      16,    17,    18,    19,    20,   163,   166,    21,    22,    23,
-      24,    25,    26,    27,    28,    29,    30,   167,    92,    31,
-      32,   173,   -87,    98,   180,    33,   -87,   -87,   -87,   -87,
-     -87,   -87,   -87,   -87,   182,   191,   -87,   -87,   100,   -87,
-     -87,   -87,   -87,   -87,   -87,   -87,   185,   187,   -87,   107,
-     188,   189,    98,   193,   142,   -78,   -78,   -78,   -78,   -78,
-     -78,   -78,   -78,   194,   195,   -78,   -78,   100,    54,    13,
-      14,    15,    16,    17,    18,    19,    20,    52,   107,    21,
-      22,    14,    15,   142,    17,    18,    19,    20,    76,   123,
-      21,    22,   171,    91,    92,   165,   135,    33,   186,    91,
-      92,     0,     0,     0,     0,     0,     0,     0,    33
+      10,    89,    90,   152,   153,   154,   155,   156,   157,     1,
+      55,   125,    57,    11,    59,   128,   147,    63,   167,   177,
+     148,   133,     1,   142,   150,   151,   175,     2,    13,    14,
+      15,    16,    17,    18,    19,    20,    60,   161,    21,    22,
+     165,    56,     2,   186,   180,   137,   182,   183,   184,    91,
+      92,   135,   187,   144,   189,    53,   191,    58,   138,   160,
+      33,    66,    67,   129,   132,    62,   141,   198,    64,    68,
+      93,     8,     9,   147,    69,    65,   185,   148,    14,    15,
+      73,    17,    18,    19,    20,    66,    67,    21,    22,    66,
+      67,   149,    72,   178,    91,    92,    74,    68,   131,   136,
+      53,   145,    69,    83,   162,    84,   -32,   102,   192,    33,
+     -32,   -32,   -32,   -32,   -32,   -32,   -32,   -32,   103,   172,
+     -32,   -32,   104,   -32,   105,   106,   107,   108,   109,   -32,
+     110,   166,   -32,   111,     2,    91,    92,    91,    92,   -34,
+     102,    85,   112,   -34,   -34,   -34,   -34,   -34,   -34,   -34,
+     -34,   103,    86,   -34,   -34,   104,   -34,   105,   106,   107,
+     108,   109,   -34,   110,    87,   -34,   111,   179,    91,    92,
+     194,    91,    92,    -5,    12,   112,    88,    13,    14,    15,
+      16,    17,    18,    19,    20,   100,   101,    21,    22,    23,
+      24,    25,    26,    27,    28,    29,    30,   158,   204,    31,
+      32,   159,   169,   170,   171,   174,    -4,    12,   175,    33,
+      13,    14,    15,    16,    17,    18,    19,    20,    92,   181,
+      21,    22,    23,    24,    25,    26,    27,    28,    29,    30,
+     -87,   102,    31,    32,   -87,   -87,   -87,   -87,   -87,   -87,
+     -87,   -87,    33,   188,   -87,   -87,   104,   -87,   -87,   -87,
+     -87,   -87,   -87,   -87,   102,   190,   -87,   111,   -53,   -53,
+     193,   -53,   -53,   -53,   -53,   103,   146,   -53,   -53,   104,
+     119,   120,   121,   122,   195,   196,   197,   201,   102,   123,
+     111,   -78,   -78,   -78,   -78,   -78,   -78,   -78,   -78,   124,
+     199,   -78,   -78,   104,   202,    94,    95,    96,    97,    98,
+     203,    54,    52,    76,   111,    99,   127,   139,   173,     0,
+       0,     0,     0,   146
 };
 
 static const yytype_int16 yycheck[] =
 {
-       1,    10,    68,    69,    94,    95,    77,   133,    77,     0,
-       3,    82,    13,    82,    15,   105,     3,    18,    25,    32,
-      27,    28,    14,    27,    31,    91,    92,    23,   154,    36,
-     156,   157,   158,    79,   100,    81,    32,   103,   164,    32,
-     166,    33,    34,    27,    28,    32,    32,    31,    29,    32,
-      27,   177,    36,    32,    35,    32,    30,    27,    28,    33,
-      34,    70,    27,     1,   135,    27,   135,     5,     6,   159,
-       8,     9,    10,    11,    12,    32,    14,    15,    16,    17,
-      18,    19,    20,     1,    78,    79,   152,    81,    26,    27,
-      78,    79,     1,    81,    32,    32,    33,    34,    27,    28,
-     101,   167,     0,     1,    32,    32,     4,     5,     6,     7,
-       8,     9,    10,    11,    12,   116,    14,    15,    16,    17,
-      18,    19,    20,    21,    22,    23,    24,    32,    26,    27,
-      32,     0,     1,    32,    32,     4,     5,     6,     7,     8,
-       9,    10,    11,    12,    32,    14,    15,    16,    17,    18,
-      19,    20,    21,    22,    23,    24,    32,    26,    27,    32,
-       0,     1,    32,    32,     4,     5,     6,     7,     8,     9,
-      10,    11,    33,    34,    14,    15,    16,    17,    18,    19,
-      20,    21,    22,    23,    32,    32,    26,    27,    27,    79,
-     191,    81,    32,     0,     1,     1,    13,     4,     5,     6,
-       7,     8,     9,    10,    11,    32,    27,    14,    15,    16,
-      17,    18,    19,    20,    21,    22,    23,    14,    34,    26,
-      27,    32,     0,     1,    32,    32,     4,     5,     6,     7,
-       8,     9,    10,    11,    32,    35,    14,    15,    16,    17,
-      18,    19,    20,    21,    22,    23,    32,    32,    26,    27,
-      32,    32,     1,    32,    32,     4,     5,     6,     7,     8,
-       9,    10,    11,    32,    32,    14,    15,    16,     7,     4,
-       5,     6,     7,     8,     9,    10,    11,     6,    27,    14,
-      15,     5,     6,    32,     8,     9,    10,    11,    38,    77,
-      14,    15,    32,    33,    34,   117,    80,    32,    32,    33,
-      34,    -1,    -1,    -1,    -1,    -1,    -1,    -1,    32
+       1,    68,    69,    94,    95,    96,    97,    98,    99,     3,
+      10,    77,    13,     0,    15,    77,    82,    18,   109,   137,
+      82,    79,     3,    81,    91,    92,    14,    36,     4,     5,
+       6,     7,     8,     9,    10,    11,    27,   104,    14,    15,
+     107,    36,    36,    27,   162,    23,   164,   165,   166,    37,
+      38,    79,    36,    81,   172,    36,   174,    36,    36,    25,
+      36,    27,    28,    78,    79,    36,    81,   185,    27,    35,
+      70,    27,    28,   139,    40,    27,   167,   139,     5,     6,
+       1,     8,     9,    10,    11,    27,    28,    14,    15,    27,
+      28,    34,    36,   160,    37,    38,     1,    35,    78,    79,
+      36,    81,    40,    36,   105,    36,     0,     1,   175,    36,
+       4,     5,     6,     7,     8,     9,    10,    11,    12,   120,
+      14,    15,    16,    17,    18,    19,    20,    21,    22,    23,
+      24,    27,    26,    27,    36,    37,    38,    37,    38,     0,
+       1,    36,    36,     4,     5,     6,     7,     8,     9,    10,
+      11,    12,    36,    14,    15,    16,    17,    18,    19,    20,
+      21,    22,    23,    24,    36,    26,    27,    36,    37,    38,
+      36,    37,    38,     0,     1,    36,    36,     4,     5,     6,
+       7,     8,     9,    10,    11,    36,    36,    14,    15,    16,
+      17,    18,    19,    20,    21,    22,    23,    36,   199,    26,
+      27,    36,     1,    13,    36,    27,     0,     1,    14,    36,
+       4,     5,     6,     7,     8,     9,    10,    11,    38,    36,
+      14,    15,    16,    17,    18,    19,    20,    21,    22,    23,
+       0,     1,    26,    27,     4,     5,     6,     7,     8,     9,
+      10,    11,    36,    36,    14,    15,    16,    17,    18,    19,
+      20,    21,    22,    23,     1,    36,    26,    27,     5,     6,
+      36,     8,     9,    10,    11,    12,    36,    14,    15,    16,
+      17,    18,    19,    20,    36,    36,    36,    36,     1,    26,
+      27,     4,     5,     6,     7,     8,     9,    10,    11,    36,
+      39,    14,    15,    16,    36,    29,    30,    31,    32,    33,
+      36,     7,     6,    38,    27,    39,    77,    80,   121,    -1,
+      -1,    -1,    -1,    36
 };
 
-/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
-   symbol of state STATE-NUM.  */
+  /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+     symbol of state STATE-NUM.  */
 static const yytype_uint8 yystos[] =
 {
-       0,     3,    32,    38,    39,    40,    64,    82,    27,    28,
-      80,     0,     1,     4,     5,     6,     7,     8,     9,    10,
+       0,     3,    36,    42,    43,    44,    68,    86,    27,    28,
+      84,     0,     1,     4,     5,     6,     7,     8,     9,    10,
       11,    14,    15,    16,    17,    18,    19,    20,    21,    22,
-      23,    26,    27,    32,    41,    42,    44,    45,    46,    47,
-      53,    54,    56,    60,    62,    65,    66,    68,    70,    71,
-      72,    81,    40,    32,    39,    82,    32,    80,    32,    80,
-      27,    86,    32,    80,    27,    27,    27,    28,    31,    36,
-      84,    85,    32,     1,     1,    48,    48,    57,    59,    63,
-      77,    69,    75,    32,    32,    32,    32,    32,    32,    84,
-      84,    33,    34,    82,    29,    35,    32,    32,     1,    12,
-      16,    18,    19,    20,    21,    22,    24,    27,    32,    43,
-      49,    50,    73,    74,    76,    17,    18,    19,    20,    26,
-      32,    43,    58,    74,    76,    42,    55,    81,    42,    56,
-      61,    68,    81,    23,    32,    75,    78,    42,    56,    67,
-      68,    81,    32,    43,    76,    30,    84,    84,    85,    85,
-      32,    32,    25,    84,    80,    79,    80,    84,    27,    85,
-      51,     1,    13,    32,    80,    79,    27,    14,    83,    83,
-      84,    32,    83,    32,    83,    83,    83,    85,    27,    32,
-      32,    83,    32,    83,    84,    32,    32,    32,    32,    32,
-      83,    35,    52,    32,    32,    32,    80
+      23,    26,    27,    36,    45,    46,    48,    49,    50,    51,
+      57,    58,    60,    64,    66,    69,    70,    72,    74,    75,
+      76,    85,    44,    36,    43,    86,    36,    84,    36,    84,
+      27,    90,    36,    84,    27,    27,    27,    28,    35,    40,
+      88,    89,    36,     1,     1,    52,    52,    61,    63,    67,
+      81,    73,    79,    36,    36,    36,    36,    36,    36,    88,
+      88,    37,    38,    86,    29,    30,    31,    32,    33,    39,
+      36,    36,     1,    12,    16,    18,    19,    20,    21,    22,
+      24,    27,    36,    47,    53,    54,    77,    78,    80,    17,
+      18,    19,    20,    26,    36,    47,    62,    78,    80,    46,
+      59,    85,    46,    60,    65,    72,    85,    23,    36,    79,
+      82,    46,    60,    71,    72,    85,    36,    47,    80,    34,
+      88,    88,    89,    89,    89,    89,    89,    89,    36,    36,
+      25,    88,    84,    83,    84,    88,    27,    89,    55,     1,
+      13,    36,    84,    83,    27,    14,    87,    87,    88,    36,
+      87,    36,    87,    87,    87,    89,    27,    36,    36,    87,
+      36,    87,    88,    36,    36,    36,    36,    36,    87,    39,
+      56,    36,    36,    36,    84
 };
 
-#define yyerrok		(yyerrstatus = 0)
-#define yyclearin	(yychar = YYEMPTY)
-#define YYEMPTY		(-2)
-#define YYEOF		0
+  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+static const yytype_uint8 yyr1[] =
+{
+       0,    41,    42,    42,    43,    43,    44,    44,    44,    44,
+      44,    44,    44,    44,    45,    45,    45,    45,    45,    45,
+      45,    45,    45,    46,    46,    46,    46,    46,    46,    47,
+      47,    48,    49,    50,    51,    52,    52,    52,    52,    52,
+      52,    52,    53,    53,    53,    53,    53,    54,    55,    55,
+      56,    56,    57,    58,    59,    60,    61,    61,    61,    61,
+      61,    61,    62,    62,    62,    62,    62,    63,    63,    64,
+      65,    66,    67,    67,    67,    67,    68,    69,    70,    71,
+      72,    73,    73,    73,    73,    74,    75,    76,    77,    78,
+      79,    79,    79,    79,    80,    80,    81,    81,    81,    82,
+      83,    83,    84,    84,    85,    85,    85,    86,    86,    87,
+      87,    88,    88,    88,    88,    88,    88,    88,    88,    88,
+      88,    88,    89,    89,    90,    90
+};
+
+  /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.  */
+static const yytype_uint8 yyr2[] =
+{
+       0,     2,     2,     1,     2,     1,     0,     2,     2,     2,
+       2,     4,     4,     3,     1,     1,     1,     1,     1,     1,
+       1,     1,     1,     1,     1,     1,     1,     1,     1,     3,
+       2,     3,     2,     3,     2,     0,     2,     2,     2,     2,
+       2,     2,     3,     4,     4,     4,     5,     3,     0,     3,
+       0,     2,     3,     2,     1,     3,     0,     2,     2,     2,
+       2,     2,     4,     3,     2,     3,     4,     0,     2,     3,
+       1,     3,     0,     2,     2,     2,     3,     3,     3,     1,
+       3,     0,     2,     2,     2,     3,     3,     2,     2,     2,
+       0,     2,     2,     2,     4,     3,     0,     2,     2,     2,
+       0,     2,     1,     1,     2,     2,     2,     1,     2,     0,
+       2,     1,     3,     3,     3,     3,     3,     3,     3,     2,
+       3,     3,     1,     1,     0,     1
+};
 
-#define YYACCEPT	goto yyacceptlab
-#define YYABORT		goto yyabortlab
-#define YYERROR		goto yyerrorlab
 
+#define yyerrok         (yyerrstatus = 0)
+#define yyclearin       (yychar = YYEMPTY)
+#define YYEMPTY         (-2)
+#define YYEOF           0
 
-/* 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.  */
+#define YYACCEPT        goto yyacceptlab
+#define YYABORT         goto yyabortlab
+#define YYERROR         goto yyerrorlab
 
-#define YYFAIL		goto yyerrlab
 
 #define YYRECOVERING()  (!!yyerrstatus)
 
-#define YYBACKUP(Token, Value)					\
-do								\
-  if (yychar == YYEMPTY && yylen == 1)				\
-    {								\
-      yychar = (Token);						\
-      yylval = (Value);						\
-      yytoken = YYTRANSLATE (yychar);				\
-      YYPOPSTACK (1);						\
-      goto yybackup;						\
-    }								\
-  else								\
-    {								\
+#define YYBACKUP(Token, Value)                                  \
+do                                                              \
+  if (yychar == YYEMPTY)                                        \
+    {                                                           \
+      yychar = (Token);                                         \
+      yylval = (Value);                                         \
+      YYPOPSTACK (yylen);                                       \
+      yystate = *yyssp;                                         \
+      goto yybackup;                                            \
+    }                                                           \
+  else                                                          \
+    {                                                           \
       yyerror (YY_("syntax error: cannot back up")); \
-      YYERROR;							\
-    }								\
-while (YYID (0))
-
-
-#define YYTERROR	1
-#define YYERRCODE	256
-
-
-/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
-   If N is 0, then set CURRENT to the empty location which ends
-   the previous symbol: RHS[0] (always defined).  */
-
-#define YYRHSLOC(Rhs, K) ((Rhs)[K])
-#ifndef YYLLOC_DEFAULT
-# define YYLLOC_DEFAULT(Current, Rhs, N)				\
-    do									\
-      if (YYID (N))                                                    \
-	{								\
-	  (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;	\
-	  (Current).first_column = YYRHSLOC (Rhs, 1).first_column;	\
-	  (Current).last_line    = YYRHSLOC (Rhs, N).last_line;		\
-	  (Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
-	}								\
-      else								\
-	{								\
-	  (Current).first_line   = (Current).last_line   =		\
-	    YYRHSLOC (Rhs, 0).last_line;				\
-	  (Current).first_column = (Current).last_column =		\
-	    YYRHSLOC (Rhs, 0).last_column;				\
-	}								\
-    while (YYID (0))
-#endif
-
-
-/* YY_LOCATION_PRINT -- Print the location on the stream.
-   This macro was not mandated originally: define only if we know
-   we won't break user code: when these are the locations we know.  */
-
-#ifndef YY_LOCATION_PRINT
-# 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,	\
-	      (Loc).last_line,  (Loc).last_column)
-# else
-#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
-# endif
-#endif
+      YYERROR;                                                  \
+    }                                                           \
+while (0)
 
+/* Error token number */
+#define YYTERROR        1
+#define YYERRCODE       256
 
-/* YYLEX -- calling `yylex' with the right arguments.  */
 
-#ifdef YYLEX_PARAM
-# define YYLEX yylex (YYLEX_PARAM)
-#else
-# define YYLEX yylex ()
-#endif
 
 /* Enable debugging if requested.  */
 #if YYDEBUG
@@ -927,54 +835,46 @@ while (YYID (0))
 #  define YYFPRINTF fprintf
 # endif
 
-# define YYDPRINTF(Args)			\
-do {						\
-  if (yydebug)					\
-    YYFPRINTF Args;				\
-} while (YYID (0))
+# define YYDPRINTF(Args)                        \
+do {                                            \
+  if (yydebug)                                  \
+    YYFPRINTF Args;                             \
+} while (0)
+
+/* This macro is provided for backward compatibility. */
+#ifndef YY_LOCATION_PRINT
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+#endif
+
 
-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)			  \
-do {									  \
-  if (yydebug)								  \
-    {									  \
-      YYFPRINTF (stderr, "%s ", Title);					  \
-      yy_symbol_print (stderr,						  \
-		  Type, Value); \
-      YYFPRINTF (stderr, "\n");						  \
-    }									  \
-} while (YYID (0))
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)                    \
+do {                                                                      \
+  if (yydebug)                                                            \
+    {                                                                     \
+      YYFPRINTF (stderr, "%s ", Title);                                   \
+      yy_symbol_print (stderr,                                            \
+                  Type, Value); \
+      YYFPRINTF (stderr, "\n");                                           \
+    }                                                                     \
+} while (0)
 
 
-/*--------------------------------.
-| Print this symbol on YYOUTPUT.  |
-`--------------------------------*/
+/*----------------------------------------.
+| Print this symbol's value on YYOUTPUT.  |
+`----------------------------------------*/
 
-/*ARGSUSED*/
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
 static void
 yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
-#else
-static void
-yy_symbol_value_print (yyoutput, yytype, yyvaluep)
-    FILE *yyoutput;
-    int yytype;
-    YYSTYPE const * const yyvaluep;
-#endif
 {
+  FILE *yyo = yyoutput;
+  YYUSE (yyo);
   if (!yyvaluep)
     return;
 # ifdef YYPRINT
   if (yytype < YYNTOKENS)
     YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
-# else
-  YYUSE (yyoutput);
 # endif
-  switch (yytype)
-    {
-      default:
-	break;
-    }
+  YYUSE (yytype);
 }
 
 
@@ -982,22 +882,11 @@ yy_symbol_value_print (yyoutput, yytype, yyvaluep)
 | Print this symbol on YYOUTPUT.  |
 `--------------------------------*/
 
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
 static void
 yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
-#else
-static void
-yy_symbol_print (yyoutput, yytype, yyvaluep)
-    FILE *yyoutput;
-    int yytype;
-    YYSTYPE const * const yyvaluep;
-#endif
 {
-  if (yytype < YYNTOKENS)
-    YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
-  else
-    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+  YYFPRINTF (yyoutput, "%s %s (",
+             yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
 
   yy_symbol_value_print (yyoutput, yytype, yyvaluep);
   YYFPRINTF (yyoutput, ")");
@@ -1008,66 +897,54 @@ yy_symbol_print (yyoutput, yytype, yyvaluep)
 | TOP (included).                                                   |
 `------------------------------------------------------------------*/
 
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
 static void
-yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
-#else
-static void
-yy_stack_print (bottom, top)
-    yytype_int16 *bottom;
-    yytype_int16 *top;
-#endif
+yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
 {
   YYFPRINTF (stderr, "Stack now");
-  for (; bottom <= top; ++bottom)
-    YYFPRINTF (stderr, " %d", *bottom);
+  for (; yybottom <= yytop; yybottom++)
+    {
+      int yybot = *yybottom;
+      YYFPRINTF (stderr, " %d", yybot);
+    }
   YYFPRINTF (stderr, "\n");
 }
 
-# define YY_STACK_PRINT(Bottom, Top)				\
-do {								\
-  if (yydebug)							\
-    yy_stack_print ((Bottom), (Top));				\
-} while (YYID (0))
+# define YY_STACK_PRINT(Bottom, Top)                            \
+do {                                                            \
+  if (yydebug)                                                  \
+    yy_stack_print ((Bottom), (Top));                           \
+} while (0)
 
 
 /*------------------------------------------------.
 | Report that the YYRULE is going to be reduced.  |
 `------------------------------------------------*/
 
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
-static void
-yy_reduce_print (YYSTYPE *yyvsp, int yyrule)
-#else
 static void
-yy_reduce_print (yyvsp, yyrule)
-    YYSTYPE *yyvsp;
-    int yyrule;
-#endif
+yy_reduce_print (yytype_int16 *yyssp, YYSTYPE *yyvsp, int yyrule)
 {
+  unsigned long int yylno = yyrline[yyrule];
   int yynrhs = yyr2[yyrule];
   int yyi;
-  unsigned long int yylno = yyrline[yyrule];
   YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
-	     yyrule - 1, yylno);
+             yyrule - 1, yylno);
   /* The symbols being reduced.  */
   for (yyi = 0; yyi < yynrhs; yyi++)
     {
-      fprintf (stderr, "   $%d = ", yyi + 1);
-      yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
-		       &(yyvsp[(yyi + 1) - (yynrhs)])
-		       		       );
-      fprintf (stderr, "\n");
+      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
+      yy_symbol_print (stderr,
+                       yystos[yyssp[yyi + 1 - yynrhs]],
+                       &(yyvsp[(yyi + 1) - (yynrhs)])
+                                              );
+      YYFPRINTF (stderr, "\n");
     }
 }
 
-# define YY_REDUCE_PRINT(Rule)		\
-do {					\
-  if (yydebug)				\
-    yy_reduce_print (yyvsp, Rule); \
-} while (YYID (0))
+# define YY_REDUCE_PRINT(Rule)          \
+do {                                    \
+  if (yydebug)                          \
+    yy_reduce_print (yyssp, yyvsp, Rule); \
+} while (0)
 
 /* Nonzero means print parse trace.  It is left uninitialized so that
    multiple parsers can coexist.  */
@@ -1081,7 +958,7 @@ int yydebug;
 
 
 /* YYINITDEPTH -- initial size of the parser's stacks.  */
-#ifndef	YYINITDEPTH
+#ifndef YYINITDEPTH
 # define YYINITDEPTH 200
 #endif
 
@@ -1096,7 +973,6 @@ int yydebug;
 # define YYMAXDEPTH 10000
 #endif
 
-
 
 #if YYERROR_VERBOSE
 
@@ -1105,15 +981,8 @@ int yydebug;
 #   define yystrlen strlen
 #  else
 /* Return the length of YYSTR.  */
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
 static YYSIZE_T
 yystrlen (const char *yystr)
-#else
-static YYSIZE_T
-yystrlen (yystr)
-    const char *yystr;
-#endif
 {
   YYSIZE_T yylen;
   for (yylen = 0; yystr[yylen]; yylen++)
@@ -1129,16 +998,8 @@ yystrlen (yystr)
 #  else
 /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
    YYDEST.  */
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
 static char *
 yystpcpy (char *yydest, const char *yysrc)
-#else
-static char *
-yystpcpy (yydest, yysrc)
-    char *yydest;
-    const char *yysrc;
-#endif
 {
   char *yyd = yydest;
   const char *yys = yysrc;
@@ -1168,27 +1029,27 @@ yytnamerr (char *yyres, const char *yystr)
       char const *yyp = yystr;
 
       for (;;)
-	switch (*++yyp)
-	  {
-	  case '\'':
-	  case ',':
-	    goto do_not_strip_quotes;
-
-	  case '\\':
-	    if (*++yyp != '\\')
-	      goto do_not_strip_quotes;
-	    /* Fall through.  */
-	  default:
-	    if (yyres)
-	      yyres[yyn] = *yyp;
-	    yyn++;
-	    break;
-
-	  case '"':
-	    if (yyres)
-	      yyres[yyn] = '\0';
-	    return yyn;
-	  }
+        switch (*++yyp)
+          {
+          case '\'':
+          case ',':
+            goto do_not_strip_quotes;
+
+          case '\\':
+            if (*++yyp != '\\')
+              goto do_not_strip_quotes;
+            /* Fall through.  */
+          default:
+            if (yyres)
+              yyres[yyn] = *yyp;
+            yyn++;
+            break;
+
+          case '"':
+            if (yyres)
+              yyres[yyn] = '\0';
+            return yyn;
+          }
     do_not_strip_quotes: ;
     }
 
@@ -1199,241 +1060,247 @@ yytnamerr (char *yyres, const char *yystr)
 }
 # endif
 
-/* Copy into YYRESULT an error message about the unexpected token
-   YYCHAR while in state YYSTATE.  Return the number of bytes copied,
-   including the terminating null byte.  If YYRESULT is null, do not
-   copy anything; just return the number of bytes that would be
-   copied.  As a special case, return 0 if an ordinary "syntax error"
-   message will do.  Return YYSIZE_MAXIMUM if overflow occurs during
-   size calculation.  */
-static YYSIZE_T
-yysyntax_error (char *yyresult, int yystate, int yychar)
+/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
+   about the unexpected token YYTOKEN for the state stack whose top is
+   YYSSP.
+
+   Return 0 if *YYMSG was successfully written.  Return 1 if *YYMSG is
+   not large enough to hold the message.  In that case, also set
+   *YYMSG_ALLOC to the required number of bytes.  Return 2 if the
+   required number of bytes is too large to store.  */
+static int
+yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
+                yytype_int16 *yyssp, int yytoken)
 {
-  int yyn = yypact[yystate];
+  YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);
+  YYSIZE_T yysize = yysize0;
+  enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+  /* Internationalized format string. */
+  const char *yyformat = YY_NULLPTR;
+  /* Arguments of yyformat. */
+  char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+  /* Number of reported tokens (one for the "unexpected", one per
+     "expected"). */
+  int yycount = 0;
+
+  /* There are many possibilities here to consider:
+     - If this state is a consistent state with a default action, then
+       the only way this function was invoked is if the default action
+       is an error action.  In that case, don't check for expected
+       tokens because there are none.
+     - The only way there can be no lookahead present (in yychar) is if
+       this state is a consistent state with a default action.  Thus,
+       detecting the absence of a lookahead is sufficient to determine
+       that there is no unexpected or expected token to report.  In that
+       case, just report a simple "syntax error".
+     - Don't assume there isn't a lookahead just because this state is a
+       consistent state with a default action.  There might have been a
+       previous inconsistent state, consistent state with a non-default
+       action, or user semantic action that manipulated yychar.
+     - Of course, the expected token list depends on states to have
+       correct lookahead information, and it depends on the parser not
+       to perform extra reductions after fetching a lookahead from the
+       scanner and before detecting a syntax error.  Thus, state merging
+       (from LALR or IELR) and default reductions corrupt the expected
+       token list.  However, the list is correct for canonical LR with
+       one exception: it will still contain any token that will not be
+       accepted due to an error action in a later state.
+  */
+  if (yytoken != YYEMPTY)
+    {
+      int yyn = yypact[*yyssp];
+      yyarg[yycount++] = yytname[yytoken];
+      if (!yypact_value_is_default (yyn))
+        {
+          /* Start YYX at -YYN if negative to avoid negative indexes in
+             YYCHECK.  In other words, skip the first -YYN actions for
+             this state because they are default actions.  */
+          int yyxbegin = yyn < 0 ? -yyn : 0;
+          /* Stay within bounds of both yycheck and yytname.  */
+          int yychecklim = YYLAST - yyn + 1;
+          int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+          int yyx;
+
+          for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
+                && !yytable_value_is_error (yytable[yyx + yyn]))
+              {
+                if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+                  {
+                    yycount = 1;
+                    yysize = yysize0;
+                    break;
+                  }
+                yyarg[yycount++] = yytname[yyx];
+                {
+                  YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]);
+                  if (! (yysize <= yysize1
+                         && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+                    return 2;
+                  yysize = yysize1;
+                }
+              }
+        }
+    }
 
-  if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
-    return 0;
-  else
+  switch (yycount)
     {
-      int yytype = YYTRANSLATE (yychar);
-      YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
-      YYSIZE_T yysize = yysize0;
-      YYSIZE_T yysize1;
-      int yysize_overflow = 0;
-      enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
-      char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
-      int yyx;
-
-# if 0
-      /* This is so xgettext sees the translatable formats that are
-	 constructed on the fly.  */
-      YY_("syntax error, unexpected %s");
-      YY_("syntax error, unexpected %s, expecting %s");
-      YY_("syntax error, unexpected %s, expecting %s or %s");
-      YY_("syntax error, unexpected %s, expecting %s or %s or %s");
-      YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
-# endif
-      char *yyfmt;
-      char const *yyf;
-      static char const yyunexpected[] = "syntax error, unexpected %s";
-      static char const yyexpecting[] = ", expecting %s";
-      static char const yyor[] = " or %s";
-      char yyformat[sizeof yyunexpected
-		    + sizeof yyexpecting - 1
-		    + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
-		       * (sizeof yyor - 1))];
-      char const *yyprefix = yyexpecting;
-
-      /* Start YYX at -YYN if negative to avoid negative indexes in
-	 YYCHECK.  */
-      int yyxbegin = yyn < 0 ? -yyn : 0;
-
-      /* Stay within bounds of both yycheck and yytname.  */
-      int yychecklim = YYLAST - yyn + 1;
-      int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
-      int yycount = 1;
-
-      yyarg[0] = yytname[yytype];
-      yyfmt = yystpcpy (yyformat, yyunexpected);
-
-      for (yyx = yyxbegin; yyx < yyxend; ++yyx)
-	if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
-	  {
-	    if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
-	      {
-		yycount = 1;
-		yysize = yysize0;
-		yyformat[sizeof yyunexpected - 1] = '\0';
-		break;
-	      }
-	    yyarg[yycount++] = yytname[yyx];
-	    yysize1 = yysize + yytnamerr (0, yytname[yyx]);
-	    yysize_overflow |= (yysize1 < yysize);
-	    yysize = yysize1;
-	    yyfmt = yystpcpy (yyfmt, yyprefix);
-	    yyprefix = yyor;
-	  }
-
-      yyf = YY_(yyformat);
-      yysize1 = yysize + yystrlen (yyf);
-      yysize_overflow |= (yysize1 < yysize);
-      yysize = yysize1;
-
-      if (yysize_overflow)
-	return YYSIZE_MAXIMUM;
-
-      if (yyresult)
-	{
-	  /* Avoid sprintf, as that infringes on the user's name space.
-	     Don't have undefined behavior even if the translation
-	     produced a string with the wrong number of "%s"s.  */
-	  char *yyp = yyresult;
-	  int yyi = 0;
-	  while ((*yyp = *yyf) != '\0')
-	    {
-	      if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
-		{
-		  yyp += yytnamerr (yyp, yyarg[yyi++]);
-		  yyf += 2;
-		}
-	      else
-		{
-		  yyp++;
-		  yyf++;
-		}
-	    }
-	}
-      return yysize;
+# define YYCASE_(N, S)                      \
+      case N:                               \
+        yyformat = S;                       \
+      break
+      YYCASE_(0, YY_("syntax error"));
+      YYCASE_(1, YY_("syntax error, unexpected %s"));
+      YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
+      YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
+      YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
+      YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
+# undef YYCASE_
     }
+
+  {
+    YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
+    if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+      return 2;
+    yysize = yysize1;
+  }
+
+  if (*yymsg_alloc < yysize)
+    {
+      *yymsg_alloc = 2 * yysize;
+      if (! (yysize <= *yymsg_alloc
+             && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
+        *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
+      return 1;
+    }
+
+  /* Avoid sprintf, as that infringes on the user's name space.
+     Don't have undefined behavior even if the translation
+     produced a string with the wrong number of "%s"s.  */
+  {
+    char *yyp = *yymsg;
+    int yyi = 0;
+    while ((*yyp = *yyformat) != '\0')
+      if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
+        {
+          yyp += yytnamerr (yyp, yyarg[yyi++]);
+          yyformat += 2;
+        }
+      else
+        {
+          yyp++;
+          yyformat++;
+        }
+  }
+  return 0;
 }
 #endif /* YYERROR_VERBOSE */
-
 
 /*-----------------------------------------------.
 | Release the memory associated to this symbol.  |
 `-----------------------------------------------*/
 
-/*ARGSUSED*/
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
 static void
 yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
-#else
-static void
-yydestruct (yymsg, yytype, yyvaluep)
-    const char *yymsg;
-    int yytype;
-    YYSTYPE *yyvaluep;
-#endif
 {
   YYUSE (yyvaluep);
-
   if (!yymsg)
     yymsg = "Deleting";
   YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
 
+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
   switch (yytype)
     {
-      case 54: /* "choice_entry" */
+          case 58: /* choice_entry  */
 
-	{
+      {
 	fprintf(stderr, "%s:%d: missing end statement for this entry\n",
-		(yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
-	if (current_menu == (yyvaluep->menu))
+		((*yyvaluep).menu)->file->name, ((*yyvaluep).menu)->lineno);
+	if (current_menu == ((*yyvaluep).menu))
 		menu_end_menu();
-};
+}
 
-	break;
-      case 60: /* "if_entry" */
+        break;
 
-	{
+    case 64: /* if_entry  */
+
+      {
 	fprintf(stderr, "%s:%d: missing end statement for this entry\n",
-		(yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
-	if (current_menu == (yyvaluep->menu))
+		((*yyvaluep).menu)->file->name, ((*yyvaluep).menu)->lineno);
+	if (current_menu == ((*yyvaluep).menu))
 		menu_end_menu();
-};
+}
+
+        break;
 
-	break;
-      case 66: /* "menu_entry" */
+    case 70: /* menu_entry  */
 
-	{
+      {
 	fprintf(stderr, "%s:%d: missing end statement for this entry\n",
-		(yyvaluep->menu)->file->name, (yyvaluep->menu)->lineno);
-	if (current_menu == (yyvaluep->menu))
+		((*yyvaluep).menu)->file->name, ((*yyvaluep).menu)->lineno);
+	if (current_menu == ((*yyvaluep).menu))
 		menu_end_menu();
-};
+}
+
+        break;
 
-	break;
 
       default:
-	break;
+        break;
     }
+  YY_IGNORE_MAYBE_UNINITIALIZED_END
 }
-
 
-/* Prevent warnings from -Wmissing-prototypes.  */
-
-#ifdef YYPARSE_PARAM
-#if defined __STDC__ || defined __cplusplus
-int yyparse (void *YYPARSE_PARAM);
-#else
-int yyparse ();
-#endif
-#else /* ! YYPARSE_PARAM */
-#if defined __STDC__ || defined __cplusplus
-int yyparse (void);
-#else
-int yyparse ();
-#endif
-#endif /* ! YYPARSE_PARAM */
 
 
 
-/* The look-ahead symbol.  */
+/* The lookahead symbol.  */
 int yychar;
 
-/* The semantic value of the look-ahead symbol.  */
+/* The semantic value of the lookahead symbol.  */
 YYSTYPE yylval;
-
 /* Number of syntax errors so far.  */
 int yynerrs;
 
 
-
 /*----------.
 | yyparse.  |
 `----------*/
 
-#ifdef YYPARSE_PARAM
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
-int
-yyparse (void *YYPARSE_PARAM)
-#else
-int
-yyparse (YYPARSE_PARAM)
-    void *YYPARSE_PARAM;
-#endif
-#else /* ! YYPARSE_PARAM */
-#if (defined __STDC__ || defined __C99__FUNC__ \
-     || defined __cplusplus || defined _MSC_VER)
 int
 yyparse (void)
-#else
-int
-yyparse ()
-
-#endif
-#endif
 {
-  
-  int yystate;
+    int yystate;
+    /* Number of tokens to shift before error messages enabled.  */
+    int yyerrstatus;
+
+    /* The stacks and their tools:
+       'yyss': related to states.
+       'yyvs': related to semantic values.
+
+       Refer to the stacks through separate pointers, to allow yyoverflow
+       to reallocate them elsewhere.  */
+
+    /* The state stack.  */
+    yytype_int16 yyssa[YYINITDEPTH];
+    yytype_int16 *yyss;
+    yytype_int16 *yyssp;
+
+    /* The semantic value stack.  */
+    YYSTYPE yyvsa[YYINITDEPTH];
+    YYSTYPE *yyvs;
+    YYSTYPE *yyvsp;
+
+    YYSIZE_T yystacksize;
+
   int yyn;
   int yyresult;
-  /* Number of tokens to shift before error messages enabled.  */
-  int yyerrstatus;
-  /* Look-ahead token as an internal (translated) token number.  */
+  /* Lookahead token as an internal (translated) token number.  */
   int yytoken = 0;
+  /* The variables used to return semantic value and location from the
+     action routines.  */
+  YYSTYPE yyval;
+
 #if YYERROR_VERBOSE
   /* Buffer for error messages, and its allocated size.  */
   char yymsgbuf[128];
@@ -1441,54 +1308,22 @@ yyparse ()
   YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
 #endif
 
-  /* Three stacks and their tools:
-     `yyss': related to states,
-     `yyvs': related to semantic values,
-     `yyls': related to locations.
-
-     Refer to the stacks thru separate pointers, to allow yyoverflow
-     to reallocate them elsewhere.  */
-
-  /* The state stack.  */
-  yytype_int16 yyssa[YYINITDEPTH];
-  yytype_int16 *yyss = yyssa;
-  yytype_int16 *yyssp;
-
-  /* The semantic value stack.  */
-  YYSTYPE yyvsa[YYINITDEPTH];
-  YYSTYPE *yyvs = yyvsa;
-  YYSTYPE *yyvsp;
-
-
-
 #define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N))
 
-  YYSIZE_T yystacksize = YYINITDEPTH;
-
-  /* The variables used to return semantic value and location from the
-     action routines.  */
-  YYSTYPE yyval;
-
-
   /* The number of symbols on the RHS of the reduced rule.
      Keep to zero when no symbol should be popped.  */
   int yylen = 0;
 
+  yyssp = yyss = yyssa;
+  yyvsp = yyvs = yyvsa;
+  yystacksize = YYINITDEPTH;
+
   YYDPRINTF ((stderr, "Starting parse\n"));
 
   yystate = 0;
   yyerrstatus = 0;
   yynerrs = 0;
-  yychar = YYEMPTY;		/* Cause a token to be read.  */
-
-  /* Initialize stack pointers.
-     Waste one element of value and location stack
-     so that they stay on the same level as the state stack.
-     The wasted elements are never initialized.  */
-
-  yyssp = yyss;
-  yyvsp = yyvs;
-
+  yychar = YYEMPTY; /* Cause a token to be read.  */
   goto yysetstate;
 
 /*------------------------------------------------------------.
@@ -1509,25 +1344,23 @@ yyparse ()
 
 #ifdef yyoverflow
       {
-	/* Give user a chance to reallocate the stack.  Use copies of
-	   these so that the &'s don't force the real ones into
-	   memory.  */
-	YYSTYPE *yyvs1 = yyvs;
-	yytype_int16 *yyss1 = yyss;
-
-
-	/* Each stack pointer address is followed by the size of the
-	   data in use in that stack, in bytes.  This used to be a
-	   conditional around just the two extra args, but that might
-	   be undefined if yyoverflow is a macro.  */
-	yyoverflow (YY_("memory exhausted"),
-		    &yyss1, yysize * sizeof (*yyssp),
-		    &yyvs1, yysize * sizeof (*yyvsp),
-
-		    &yystacksize);
-
-	yyss = yyss1;
-	yyvs = yyvs1;
+        /* Give user a chance to reallocate the stack.  Use copies of
+           these so that the &'s don't force the real ones into
+           memory.  */
+        YYSTYPE *yyvs1 = yyvs;
+        yytype_int16 *yyss1 = yyss;
+
+        /* Each stack pointer address is followed by the size of the
+           data in use in that stack, in bytes.  This used to be a
+           conditional around just the two extra args, but that might
+           be undefined if yyoverflow is a macro.  */
+        yyoverflow (YY_("memory exhausted"),
+                    &yyss1, yysize * sizeof (*yyssp),
+                    &yyvs1, yysize * sizeof (*yyvsp),
+                    &yystacksize);
+
+        yyss = yyss1;
+        yyvs = yyvs1;
       }
 #else /* no yyoverflow */
 # ifndef YYSTACK_RELOCATE
@@ -1535,23 +1368,22 @@ yyparse ()
 # else
       /* Extend the stack our own way.  */
       if (YYMAXDEPTH <= yystacksize)
-	goto yyexhaustedlab;
+        goto yyexhaustedlab;
       yystacksize *= 2;
       if (YYMAXDEPTH < yystacksize)
-	yystacksize = YYMAXDEPTH;
+        yystacksize = YYMAXDEPTH;
 
       {
-	yytype_int16 *yyss1 = yyss;
-	union yyalloc *yyptr =
-	  (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
-	if (! yyptr)
-	  goto yyexhaustedlab;
-	YYSTACK_RELOCATE (yyss);
-	YYSTACK_RELOCATE (yyvs);
-
+        yytype_int16 *yyss1 = yyss;
+        union yyalloc *yyptr =
+          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+        if (! yyptr)
+          goto yyexhaustedlab;
+        YYSTACK_RELOCATE (yyss_alloc, yyss);
+        YYSTACK_RELOCATE (yyvs_alloc, yyvs);
 #  undef YYSTACK_RELOCATE
-	if (yyss1 != yyssa)
-	  YYSTACK_FREE (yyss1);
+        if (yyss1 != yyssa)
+          YYSTACK_FREE (yyss1);
       }
 # endif
 #endif /* no yyoverflow */
@@ -1559,16 +1391,18 @@ yyparse ()
       yyssp = yyss + yysize - 1;
       yyvsp = yyvs + yysize - 1;
 
-
       YYDPRINTF ((stderr, "Stack size increased to %lu\n",
-		  (unsigned long int) yystacksize));
+                  (unsigned long int) yystacksize));
 
       if (yyss + yystacksize - 1 <= yyssp)
-	YYABORT;
+        YYABORT;
     }
 
   YYDPRINTF ((stderr, "Entering state %d\n", yystate));
 
+  if (yystate == YYFINAL)
+    YYACCEPT;
+
   goto yybackup;
 
 /*-----------.
@@ -1577,20 +1411,20 @@ yyparse ()
 yybackup:
 
   /* Do appropriate processing given the current state.  Read a
-     look-ahead token if we need one and don't already have one.  */
+     lookahead token if we need one and don't already have one.  */
 
-  /* First try to decide what to do without reference to look-ahead token.  */
+  /* First try to decide what to do without reference to lookahead token.  */
   yyn = yypact[yystate];
-  if (yyn == YYPACT_NINF)
+  if (yypact_value_is_default (yyn))
     goto yydefault;
 
-  /* Not known => get a look-ahead token if don't already have one.  */
+  /* Not known => get a lookahead token if don't already have one.  */
 
-  /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
   if (yychar == YYEMPTY)
     {
       YYDPRINTF ((stderr, "Reading a token: "));
-      yychar = YYLEX;
+      yychar = yylex ();
     }
 
   if (yychar <= YYEOF)
@@ -1612,29 +1446,27 @@ yybackup:
   yyn = yytable[yyn];
   if (yyn <= 0)
     {
-      if (yyn == 0 || yyn == YYTABLE_NINF)
-	goto yyerrlab;
+      if (yytable_value_is_error (yyn))
+        goto yyerrlab;
       yyn = -yyn;
       goto yyreduce;
     }
 
-  if (yyn == YYFINAL)
-    YYACCEPT;
-
   /* Count tokens shifted since error; after three, turn off error
      status.  */
   if (yyerrstatus)
     yyerrstatus--;
 
-  /* Shift the look-ahead token.  */
+  /* Shift the lookahead token.  */
   YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
 
-  /* Discard the shifted token unless it is eof.  */
-  if (yychar != YYEOF)
-    yychar = YYEMPTY;
+  /* Discard the shifted token.  */
+  yychar = YYEMPTY;
 
   yystate = yyn;
+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
   *++yyvsp = yylval;
+  YY_IGNORE_MAYBE_UNINITIALIZED_END
 
   goto yynewstate;
 
@@ -1657,7 +1489,7 @@ yyreduce:
   yylen = yyr2[yyn];
 
   /* If YYLEN is nonzero, implement the default value of the action:
-     `$$ = $1'.
+     '$$ = $1'.
 
      Otherwise, the following line sets YYVAL to garbage.
      This behavior is undocumented and Bison
@@ -1672,44 +1504,51 @@ yyreduce:
     {
         case 10:
 
-    { zconf_error("unexpected end statement"); ;}
+    { zconf_error("unexpected end statement"); }
+
     break;
 
   case 11:
 
-    { zconf_error("unknown statement \"%s\"", (yyvsp[(2) - (4)].string)); ;}
+    { zconf_error("unknown statement \"%s\"", (yyvsp[-2].string)); }
+
     break;
 
   case 12:
 
     {
-	zconf_error("unexpected option \"%s\"", kconf_id_strings + (yyvsp[(2) - (4)].id)->name);
-;}
+	zconf_error("unexpected option \"%s\"", kconf_id_strings + (yyvsp[-2].id)->name);
+}
+
     break;
 
   case 13:
 
-    { zconf_error("invalid statement"); ;}
+    { zconf_error("invalid statement"); }
+
     break;
 
   case 29:
 
-    { zconf_error("unknown option \"%s\"", (yyvsp[(1) - (3)].string)); ;}
+    { zconf_error("unknown option \"%s\"", (yyvsp[-2].string)); }
+
     break;
 
   case 30:
 
-    { zconf_error("invalid option"); ;}
+    { zconf_error("invalid option"); }
+
     break;
 
   case 31:
 
     {
-	struct symbol *sym = sym_lookup((yyvsp[(2) - (3)].string), 0);
+	struct symbol *sym = sym_lookup((yyvsp[-1].string), 0);
 	sym->flags |= SYMBOL_OPTIONAL;
 	menu_add_entry(sym);
-	printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), (yyvsp[(2) - (3)].string));
-;}
+	printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), (yyvsp[-1].string));
+}
+
     break;
 
   case 32:
@@ -1717,17 +1556,19 @@ yyreduce:
     {
 	menu_end_entry();
 	printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 33:
 
     {
-	struct symbol *sym = sym_lookup((yyvsp[(2) - (3)].string), 0);
+	struct symbol *sym = sym_lookup((yyvsp[-1].string), 0);
 	sym->flags |= SYMBOL_OPTIONAL;
 	menu_add_entry(sym);
-	printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), (yyvsp[(2) - (3)].string));
-;}
+	printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), (yyvsp[-1].string));
+}
+
     break;
 
   case 34:
@@ -1739,124 +1580,138 @@ yyreduce:
 		zconfprint("warning: menuconfig statement without prompt");
 	menu_end_entry();
 	printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 42:
 
     {
-	menu_set_type((yyvsp[(1) - (3)].id)->stype);
+	menu_set_type((yyvsp[-2].id)->stype);
 	printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
 		zconf_curname(), zconf_lineno(),
-		(yyvsp[(1) - (3)].id)->stype);
-;}
+		(yyvsp[-2].id)->stype);
+}
+
     break;
 
   case 43:
 
     {
-	menu_add_prompt(P_PROMPT, (yyvsp[(2) - (4)].string), (yyvsp[(3) - (4)].expr));
+	menu_add_prompt(P_PROMPT, (yyvsp[-2].string), (yyvsp[-1].expr));
 	printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 44:
 
     {
-	menu_add_expr(P_DEFAULT, (yyvsp[(2) - (4)].expr), (yyvsp[(3) - (4)].expr));
-	if ((yyvsp[(1) - (4)].id)->stype != S_UNKNOWN)
-		menu_set_type((yyvsp[(1) - (4)].id)->stype);
+	menu_add_expr(P_DEFAULT, (yyvsp[-2].expr), (yyvsp[-1].expr));
+	if ((yyvsp[-3].id)->stype != S_UNKNOWN)
+		menu_set_type((yyvsp[-3].id)->stype);
 	printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
 		zconf_curname(), zconf_lineno(),
-		(yyvsp[(1) - (4)].id)->stype);
-;}
+		(yyvsp[-3].id)->stype);
+}
+
     break;
 
   case 45:
 
     {
-	menu_add_symbol(P_SELECT, sym_lookup((yyvsp[(2) - (4)].string), 0), (yyvsp[(3) - (4)].expr));
+	menu_add_symbol(P_SELECT, sym_lookup((yyvsp[-2].string), 0), (yyvsp[-1].expr));
 	printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 46:
 
     {
-	menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,(yyvsp[(2) - (5)].symbol), (yyvsp[(3) - (5)].symbol)), (yyvsp[(4) - (5)].expr));
+	menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,(yyvsp[-3].symbol), (yyvsp[-2].symbol)), (yyvsp[-1].expr));
 	printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 49:
 
     {
-	const 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[-1].string), strlen((yyvsp[-1].string)));
 	if (id && id->flags & TF_OPTION)
-		menu_add_option(id->token, (yyvsp[(3) - (3)].string));
+		menu_add_option(id->token, (yyvsp[0].string));
 	else
-		zconfprint("warning: ignoring unknown option %s", (yyvsp[(2) - (3)].string));
-	free((yyvsp[(2) - (3)].string));
-;}
+		zconfprint("warning: ignoring unknown option %s", (yyvsp[-1].string));
+	free((yyvsp[-1].string));
+}
+
     break;
 
   case 50:
 
-    { (yyval.string) = NULL; ;}
+    { (yyval.string) = NULL; }
+
     break;
 
   case 51:
 
-    { (yyval.string) = (yyvsp[(2) - (2)].string); ;}
+    { (yyval.string) = (yyvsp[0].string); }
+
     break;
 
   case 52:
 
     {
-	struct symbol *sym = sym_lookup((yyvsp[(2) - (3)].string), SYMBOL_CHOICE);
+	struct symbol *sym = sym_lookup((yyvsp[-1].string), SYMBOL_CHOICE);
 	sym->flags |= SYMBOL_AUTO;
 	menu_add_entry(sym);
 	menu_add_expr(P_CHOICE, NULL, NULL);
 	printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 53:
 
     {
 	(yyval.menu) = menu_add_menu();
-;}
+}
+
     break;
 
   case 54:
 
     {
-	if (zconf_endtoken((yyvsp[(1) - (1)].id), T_CHOICE, T_ENDCHOICE)) {
+	if (zconf_endtoken((yyvsp[0].id), T_CHOICE, T_ENDCHOICE)) {
 		menu_end_menu();
 		printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
 	}
-;}
+}
+
     break;
 
   case 62:
 
     {
-	menu_add_prompt(P_PROMPT, (yyvsp[(2) - (4)].string), (yyvsp[(3) - (4)].expr));
+	menu_add_prompt(P_PROMPT, (yyvsp[-2].string), (yyvsp[-1].expr));
 	printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 63:
 
     {
-	if ((yyvsp[(1) - (3)].id)->stype == S_BOOLEAN || (yyvsp[(1) - (3)].id)->stype == S_TRISTATE) {
-		menu_set_type((yyvsp[(1) - (3)].id)->stype);
+	if ((yyvsp[-2].id)->stype == S_BOOLEAN || (yyvsp[-2].id)->stype == S_TRISTATE) {
+		menu_set_type((yyvsp[-2].id)->stype);
 		printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
 			zconf_curname(), zconf_lineno(),
-			(yyvsp[(1) - (3)].id)->stype);
+			(yyvsp[-2].id)->stype);
 	} else
 		YYERROR;
-;}
+}
+
     break;
 
   case 64:
@@ -1864,26 +1719,29 @@ yyreduce:
     {
 	current_entry->sym->flags |= SYMBOL_OPTIONAL;
 	printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 65:
 
     {
-	menu_add_prop(P_RESET, NULL, NULL, (yyvsp[(2) - (3)].expr));
-;}
+	menu_add_prop(P_RESET, NULL, NULL, (yyvsp[-1].expr));
+}
+
     break;
 
   case 66:
 
     {
-	if ((yyvsp[(1) - (4)].id)->stype == S_UNKNOWN) {
-		menu_add_symbol(P_DEFAULT, sym_lookup((yyvsp[(2) - (4)].string), 0), (yyvsp[(3) - (4)].expr));
+	if ((yyvsp[-3].id)->stype == S_UNKNOWN) {
+		menu_add_symbol(P_DEFAULT, sym_lookup((yyvsp[-2].string), 0), (yyvsp[-1].expr));
 		printd(DEBUG_PARSE, "%s:%d:default\n",
 			zconf_curname(), zconf_lineno());
 	} else
 		YYERROR;
-;}
+}
+
     break;
 
   case 69:
@@ -1891,76 +1749,85 @@ yyreduce:
     {
 	printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
 	menu_add_entry(NULL);
-	menu_add_dep((yyvsp[(2) - (3)].expr));
+	menu_add_dep((yyvsp[-1].expr));
 	(yyval.menu) = menu_add_menu();
-;}
+}
+
     break;
 
   case 70:
 
     {
-	if (zconf_endtoken((yyvsp[(1) - (1)].id), T_IF, T_ENDIF)) {
+	if (zconf_endtoken((yyvsp[0].id), T_IF, T_ENDIF)) {
 		menu_end_menu();
 		printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
 	}
-;}
+}
+
     break;
 
   case 76:
 
     {
-	menu_add_prompt(P_MENU, (yyvsp[(2) - (3)].string), NULL);
-;}
+	menu_add_prompt(P_MENU, (yyvsp[-1].string), NULL);
+}
+
     break;
 
   case 77:
 
     {
 	menu_add_entry(NULL);
-	menu_add_prompt(P_MENU, (yyvsp[(2) - (3)].string), NULL);
+	menu_add_prompt(P_MENU, (yyvsp[-1].string), NULL);
 	printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 78:
 
     {
 	(yyval.menu) = menu_add_menu();
-;}
+}
+
     break;
 
   case 79:
 
     {
-	if (zconf_endtoken((yyvsp[(1) - (1)].id), T_MENU, T_ENDMENU)) {
+	if (zconf_endtoken((yyvsp[0].id), T_MENU, T_ENDMENU)) {
 		menu_end_menu();
 		printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
 	}
-;}
+}
+
     break;
 
   case 85:
 
     {
-	printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), (yyvsp[(2) - (3)].string));
-	zconf_nextfile((yyvsp[(2) - (3)].string));
-;}
+	printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), (yyvsp[-1].string));
+	zconf_nextfile((yyvsp[-1].string));
+}
+
     break;
 
   case 86:
 
     {
 	menu_add_entry(NULL);
-	menu_add_prompt(P_COMMENT, (yyvsp[(2) - (3)].string), NULL);
+	menu_add_prompt(P_COMMENT, (yyvsp[-1].string), NULL);
 	printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 87:
 
     {
 	menu_end_entry();
-;}
+}
+
     break;
 
   case 88:
@@ -1968,126 +1835,181 @@ yyreduce:
     {
 	printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
 	zconf_starthelp();
-;}
+}
+
     break;
 
   case 89:
 
     {
-	current_entry->help = (yyvsp[(2) - (2)].string);
-;}
+	current_entry->help = (yyvsp[0].string);
+}
+
     break;
 
   case 94:
 
     {
-	menu_add_dep((yyvsp[(3) - (4)].expr));
+	menu_add_dep((yyvsp[-1].expr));
 	printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
-;}
+}
+
     break;
 
   case 95:
 
     {
-	menu_add_dep((yyvsp[(2) - (3)].expr));
+	menu_add_dep((yyvsp[-1].expr));
 	zconfprint("warning: deprecated 'depends' syntax, use 'depends on' instead.");
-;}
+}
+
     break;
 
   case 99:
 
     {
-	menu_add_visibility((yyvsp[(2) - (2)].expr));
-;}
+	menu_add_visibility((yyvsp[0].expr));
+}
+
     break;
 
   case 101:
 
     {
-	menu_add_prompt(P_PROMPT, (yyvsp[(1) - (2)].string), (yyvsp[(2) - (2)].expr));
-;}
+	menu_add_prompt(P_PROMPT, (yyvsp[-1].string), (yyvsp[0].expr));
+}
+
     break;
 
   case 104:
 
-    { (yyval.id) = (yyvsp[(1) - (2)].id); ;}
+    { (yyval.id) = (yyvsp[-1].id); }
+
     break;
 
   case 105:
 
-    { (yyval.id) = (yyvsp[(1) - (2)].id); ;}
+    { (yyval.id) = (yyvsp[-1].id); }
+
     break;
 
   case 106:
 
-    { (yyval.id) = (yyvsp[(1) - (2)].id); ;}
+    { (yyval.id) = (yyvsp[-1].id); }
+
     break;
 
   case 109:
 
-    { (yyval.expr) = NULL; ;}
+    { (yyval.expr) = NULL; }
+
     break;
 
   case 110:
 
-    { (yyval.expr) = (yyvsp[(2) - (2)].expr); ;}
+    { (yyval.expr) = (yyvsp[0].expr); }
+
     break;
 
   case 111:
 
-    { (yyval.expr) = expr_alloc_symbol((yyvsp[(1) - (1)].symbol)); ;}
+    { (yyval.expr) = expr_alloc_symbol((yyvsp[0].symbol)); }
+
     break;
 
   case 112:
 
-    { (yyval.expr) = expr_alloc_comp(E_EQUAL, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); ;}
+    { (yyval.expr) = expr_alloc_comp(E_LTH, (yyvsp[-2].symbol), (yyvsp[0].symbol)); }
+
     break;
 
   case 113:
 
-    { (yyval.expr) = expr_alloc_comp(E_UNEQUAL, (yyvsp[(1) - (3)].symbol), (yyvsp[(3) - (3)].symbol)); ;}
+    { (yyval.expr) = expr_alloc_comp(E_LEQ, (yyvsp[-2].symbol), (yyvsp[0].symbol)); }
+
     break;
 
   case 114:
 
-    { (yyval.expr) = (yyvsp[(2) - (3)].expr); ;}
+    { (yyval.expr) = expr_alloc_comp(E_GTH, (yyvsp[-2].symbol), (yyvsp[0].symbol)); }
+
     break;
 
   case 115:
 
-    { (yyval.expr) = expr_alloc_one(E_NOT, (yyvsp[(2) - (2)].expr)); ;}
+    { (yyval.expr) = expr_alloc_comp(E_GEQ, (yyvsp[-2].symbol), (yyvsp[0].symbol)); }
+
     break;
 
   case 116:
 
-    { (yyval.expr) = expr_alloc_two(E_OR, (yyvsp[(1) - (3)].expr), (yyvsp[(3) - (3)].expr)); ;}
+    { (yyval.expr) = expr_alloc_comp(E_EQUAL, (yyvsp[-2].symbol), (yyvsp[0].symbol)); }
+
     break;
 
   case 117:
 
-    { (yyval.expr) = expr_alloc_two(E_AND, (yyvsp[(1) - (3)].expr), (yyvsp[(3) - (3)].expr)); ;}
+    { (yyval.expr) = expr_alloc_comp(E_UNEQUAL, (yyvsp[-2].symbol), (yyvsp[0].symbol)); }
+
     break;
 
   case 118:
 
-    { (yyval.symbol) = sym_lookup((yyvsp[(1) - (1)].string), 0); free((yyvsp[(1) - (1)].string)); ;}
+    { (yyval.expr) = (yyvsp[-1].expr); }
+
     break;
 
   case 119:
 
-    { (yyval.symbol) = sym_lookup((yyvsp[(1) - (1)].string), SYMBOL_CONST); free((yyvsp[(1) - (1)].string)); ;}
+    { (yyval.expr) = expr_alloc_one(E_NOT, (yyvsp[0].expr)); }
+
     break;
 
   case 120:
 
-    { (yyval.string) = NULL; ;}
+    { (yyval.expr) = expr_alloc_two(E_OR, (yyvsp[-2].expr), (yyvsp[0].expr)); }
+
+    break;
+
+  case 121:
+
+    { (yyval.expr) = expr_alloc_two(E_AND, (yyvsp[-2].expr), (yyvsp[0].expr)); }
+
+    break;
+
+  case 122:
+
+    { (yyval.symbol) = sym_lookup((yyvsp[0].string), 0); free((yyvsp[0].string)); }
+
+    break;
+
+  case 123:
+
+    { (yyval.symbol) = sym_lookup((yyvsp[0].string), SYMBOL_CONST); free((yyvsp[0].string)); }
+
+    break;
+
+  case 124:
+
+    { (yyval.string) = NULL; }
+
     break;
 
 
-/* Line 1267 of yacc.c.  */
 
       default: break;
     }
+  /* User semantic actions sometimes alter yychar, and that requires
+     that yytoken be updated with the new translation.  We take the
+     approach of translating immediately before every use of yytoken.
+     One alternative is translating here after every semantic action,
+     but that translation would be missed if the semantic action invokes
+     YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
+     if it invokes YYBACKUP.  In the case of YYABORT or YYACCEPT, an
+     incorrect destructor might then be invoked immediately.  In the
+     case of YYERROR or YYBACKUP, subsequent parser actions might lead
+     to an incorrect destructor call or verbose syntax error message
+     before the lookahead is translated.  */
   YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
 
   YYPOPSTACK (yylen);
@@ -2096,8 +2018,7 @@ yyreduce:
 
   *++yyvsp = yyval;
 
-
-  /* Now `shift' the result of the reduction.  Determine what state
+  /* Now 'shift' the result of the reduction.  Determine what state
      that goes to, based on the state we popped back to and the rule
      number reduced by.  */
 
@@ -2112,10 +2033,14 @@ yyreduce:
   goto yynewstate;
 
 
-/*------------------------------------.
-| yyerrlab -- here on detecting error |
-`------------------------------------*/
+/*--------------------------------------.
+| yyerrlab -- here on detecting error.  |
+`--------------------------------------*/
 yyerrlab:
+  /* Make sure we have latest lookahead translation.  See comments at
+     user semantic actions for why this is necessary.  */
+  yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
+
   /* If not already recovering from an error, report this error.  */
   if (!yyerrstatus)
     {
@@ -2123,37 +2048,36 @@ yyerrlab:
 #if ! YYERROR_VERBOSE
       yyerror (YY_("syntax error"));
 #else
+# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
+                                        yyssp, yytoken)
       {
-	YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
-	if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
-	  {
-	    YYSIZE_T yyalloc = 2 * yysize;
-	    if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
-	      yyalloc = YYSTACK_ALLOC_MAXIMUM;
-	    if (yymsg != yymsgbuf)
-	      YYSTACK_FREE (yymsg);
-	    yymsg = (char *) YYSTACK_ALLOC (yyalloc);
-	    if (yymsg)
-	      yymsg_alloc = yyalloc;
-	    else
-	      {
-		yymsg = yymsgbuf;
-		yymsg_alloc = sizeof yymsgbuf;
-	      }
-	  }
-
-	if (0 < yysize && yysize <= yymsg_alloc)
-	  {
-	    (void) yysyntax_error (yymsg, yystate, yychar);
-	    yyerror (yymsg);
-	  }
-	else
-	  {
-	    yyerror (YY_("syntax error"));
-	    if (yysize != 0)
-	      goto yyexhaustedlab;
-	  }
+        char const *yymsgp = YY_("syntax error");
+        int yysyntax_error_status;
+        yysyntax_error_status = YYSYNTAX_ERROR;
+        if (yysyntax_error_status == 0)
+          yymsgp = yymsg;
+        else if (yysyntax_error_status == 1)
+          {
+            if (yymsg != yymsgbuf)
+              YYSTACK_FREE (yymsg);
+            yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
+            if (!yymsg)
+              {
+                yymsg = yymsgbuf;
+                yymsg_alloc = sizeof yymsgbuf;
+                yysyntax_error_status = 2;
+              }
+            else
+              {
+                yysyntax_error_status = YYSYNTAX_ERROR;
+                yymsgp = yymsg;
+              }
+          }
+        yyerror (yymsgp);
+        if (yysyntax_error_status == 2)
+          goto yyexhaustedlab;
       }
+# undef YYSYNTAX_ERROR
 #endif
     }
 
@@ -2161,24 +2085,24 @@ yyerrlab:
 
   if (yyerrstatus == 3)
     {
-      /* If just tried and failed to reuse look-ahead token after an
-	 error, discard it.  */
+      /* If just tried and failed to reuse lookahead token after an
+         error, discard it.  */
 
       if (yychar <= YYEOF)
-	{
-	  /* Return failure if at end of input.  */
-	  if (yychar == YYEOF)
-	    YYABORT;
-	}
+        {
+          /* Return failure if at end of input.  */
+          if (yychar == YYEOF)
+            YYABORT;
+        }
       else
-	{
-	  yydestruct ("Error: discarding",
-		      yytoken, &yylval);
-	  yychar = YYEMPTY;
-	}
+        {
+          yydestruct ("Error: discarding",
+                      yytoken, &yylval);
+          yychar = YYEMPTY;
+        }
     }
 
-  /* Else will try to reuse look-ahead token after shifting the error
+  /* Else will try to reuse lookahead token after shifting the error
      token.  */
   goto yyerrlab1;
 
@@ -2194,7 +2118,7 @@ yyerrorlab:
   if (/*CONSTCOND*/ 0)
      goto yyerrorlab;
 
-  /* Do not reclaim the symbols of the rule which action triggered
+  /* Do not reclaim the symbols of the rule whose action triggered
      this YYERROR.  */
   YYPOPSTACK (yylen);
   yylen = 0;
@@ -2207,38 +2131,37 @@ yyerrorlab:
 | yyerrlab1 -- common code for both syntax error and YYERROR.  |
 `-------------------------------------------------------------*/
 yyerrlab1:
-  yyerrstatus = 3;	/* Each real token shifted decrements this.  */
+  yyerrstatus = 3;      /* Each real token shifted decrements this.  */
 
   for (;;)
     {
       yyn = yypact[yystate];
-      if (yyn != YYPACT_NINF)
-	{
-	  yyn += YYTERROR;
-	  if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
-	    {
-	      yyn = yytable[yyn];
-	      if (0 < yyn)
-		break;
-	    }
-	}
+      if (!yypact_value_is_default (yyn))
+        {
+          yyn += YYTERROR;
+          if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+            {
+              yyn = yytable[yyn];
+              if (0 < yyn)
+                break;
+            }
+        }
 
       /* Pop the current state because it cannot handle the error token.  */
       if (yyssp == yyss)
-	YYABORT;
+        YYABORT;
 
 
       yydestruct ("Error: popping",
-		  yystos[yystate], yyvsp);
+                  yystos[yystate], yyvsp);
       YYPOPSTACK (1);
       yystate = *yyssp;
       YY_STACK_PRINT (yyss, yyssp);
     }
 
-  if (yyn == YYFINAL)
-    YYACCEPT;
-
+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
   *++yyvsp = yylval;
+  YY_IGNORE_MAYBE_UNINITIALIZED_END
 
 
   /* Shift the error token.  */
@@ -2262,7 +2185,7 @@ yyabortlab:
   yyresult = 1;
   goto yyreturn;
 
-#ifndef yyoverflow
+#if !defined yyoverflow || YYERROR_VERBOSE
 /*-------------------------------------------------.
 | yyexhaustedlab -- memory exhaustion comes here.  |
 `-------------------------------------------------*/
@@ -2273,17 +2196,22 @@ yyexhaustedlab:
 #endif
 
 yyreturn:
-  if (yychar != YYEOF && yychar != YYEMPTY)
-     yydestruct ("Cleanup: discarding lookahead",
-		 yytoken, &yylval);
-  /* Do not reclaim the symbols of the rule which action triggered
+  if (yychar != YYEMPTY)
+    {
+      /* Make sure we have latest lookahead translation.  See comments at
+         user semantic actions for why this is necessary.  */
+      yytoken = YYTRANSLATE (yychar);
+      yydestruct ("Cleanup: discarding lookahead",
+                  yytoken, &yylval);
+    }
+  /* Do not reclaim the symbols of the rule whose action triggered
      this YYABORT or YYACCEPT.  */
   YYPOPSTACK (yylen);
   YY_STACK_PRINT (yyss, yyssp);
   while (yyssp != yyss)
     {
       yydestruct ("Cleanup: popping",
-		  yystos[*yyssp], yyvsp);
+                  yystos[*yyssp], yyvsp);
       YYPOPSTACK (1);
     }
 #ifndef yyoverflow
@@ -2294,14 +2222,11 @@ yyreturn:
   if (yymsg != yymsgbuf)
     YYSTACK_FREE (yymsg);
 #endif
-  /* Make sure YYID is used.  */
-  return YYID (yyresult);
+  return yyresult;
 }
 
 
 
-
-
 void conf_parse(const char *name)
 {
 	struct symbol *sym;
@@ -2551,4 +2476,3 @@ void zconfdump(FILE *out)
 #include "expr.c"
 #include "symbol.c"
 #include "menu.c"
-
diff --git a/scripts/config/zconf.y b/scripts/config/zconf.y
index 903803d7b0..81645a75b0 100644
--- a/scripts/config/zconf.y
+++ b/scripts/config/zconf.y
@@ -70,6 +70,10 @@ static struct menu *current_menu, *current_entry;
 %token <string> T_WORD
 %token <string> T_WORD_QUOTE
 %token T_UNEQUAL
+%token T_LESS
+%token T_LESS_EQUAL
+%token T_GREATER
+%token T_GREATER_EQUAL
 %token T_CLOSE_PAREN
 %token T_OPEN_PAREN
 %token T_EOL
@@ -77,6 +81,7 @@ static struct menu *current_menu, *current_entry;
 %left T_OR
 %left T_AND
 %left T_EQUAL T_UNEQUAL
+%left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
 %nonassoc T_NOT
 
 %type <string> prompt
@@ -477,6 +482,10 @@ if_expr:  /* empty */			{ $$ = NULL; }
 ;
 
 expr:	  symbol				{ $$ = expr_alloc_symbol($1); }
+	| symbol T_LESS symbol			{ $$ = expr_alloc_comp(E_LTH, $1, $3); }
+	| symbol T_LESS_EQUAL symbol		{ $$ = expr_alloc_comp(E_LEQ, $1, $3); }
+	| symbol T_GREATER symbol		{ $$ = expr_alloc_comp(E_GTH, $1, $3); }
+	| symbol T_GREATER_EQUAL symbol		{ $$ = expr_alloc_comp(E_GEQ, $1, $3); }
 	| symbol T_EQUAL symbol			{ $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
 	| symbol T_UNEQUAL symbol		{ $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
 	| T_OPEN_PAREN expr T_CLOSE_PAREN	{ $$ = $2; }