예제 #1
0
static void check_conf(struct menu *menu)
{
	struct symbol *sym;
	struct menu *child;

	if (!menu_is_visible(menu))
		return;

	sym = menu->sym;
	if (sym && !sym_has_value(sym)) {
		if (sym_is_changable(sym) ||
		    (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
			if (input_mode == listnewconfig) {
				if (sym->name && !sym_is_choice_value(sym)) {
					printf("%s%s\n", CONFIG_, sym->name);
				}
			} else if (input_mode != oldnoconfig) {
				if (!conf_cnt++)
					printf(_("*\n* Restart config...\n*\n"));
				rootEntry = menu_get_parent_menu(menu);
				conf(rootEntry);
			}
		}
	}

	for (child = menu->list; child; child = child->next)
		check_conf(child);
}
예제 #2
0
파일: conf.c 프로젝트: 3null/fastsocket
static void check_conf(struct menu *menu)
{
	struct symbol *sym;
	struct menu *child;

	if (!menu_is_visible(menu))
		return;

	sym = menu->sym;
	if (sym && !sym_has_value(sym)) {
		if (sym_is_changable(sym) ||
		    (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
			if (input_mode == dont_ask ||
			    input_mode == dont_ask_dont_tell) {
				if (input_mode == dont_ask &&
				    sym->name && !sym_is_choice_value(sym)) {
					fprintf(stderr,"CONFIG_%s\n",sym->name);
					++return_value;
				}
			} else {
			if (!conf_cnt++)
				printf(_("*\n* Restart config...\n*\n"));
			rootEntry = menu_get_parent_menu(menu);
			conf(rootEntry);
		}
	}
	}

	for (child = menu->list; child; child = child->next)
		check_conf(child);
}
예제 #3
0
파일: symbol.c 프로젝트: me-oss/me-pcd
enum symbol_type sym_get_type(struct symbol *sym)
{
	enum symbol_type type = sym->type;

	if (type == S_TRISTATE) {
		if (sym_is_choice_value(sym) && sym->visible == yes)
			type = S_BOOLEAN;
		else if (modules_val == no)
			type = S_BOOLEAN;
	}
	return type;
}
예제 #4
0
enum symbol_type sym_get_type(struct symbol *sym)
{
	enum symbol_type type = sym->type;

	if (type == S_TRISTATE) {
		if (sym_is_choice_value(sym) && sym->visible == yes)
			type = S_BOOLEAN;
/* tristate always enabled */
#if 0
		else if (modules_val == no)
			type = S_BOOLEAN;
#endif
	}
	return type;
}
예제 #5
0
static void report_conf(struct menu *menu, bool verbose)
{
	struct symbol *sym;
	struct menu *child;

	if (!menu_is_visible(menu))
		return;

	if (verbose && menu == &rootmenu) {
		printf("\n#\n"
		       "# Changes:\n"
		       "#\n");
	}

	sym = menu->sym;
	if (sym && (sym->flags & SYMBOL_NEW) &&
	    sym_is_changable(sym) && sym->name && !sym_is_choice_value(sym)) {
		conf_write_new_symbol(stdout, sym, verbose);
	}

	for (child = menu->list; child; child = child->next)
		report_conf(child, verbose);
}
예제 #6
0
void menu_finalize(struct menu *parent)
{
	struct menu *menu, *last_menu;
	struct symbol *sym;
	struct property *prop;
	struct expr *parentdep, *basedep, *dep, *dep2, **ep;

	sym = parent->sym;
	if (parent->list) {
		if (sym && sym_is_choice(sym)) {
			if (sym->type == S_UNKNOWN) {
				/* find the first choice value to find out choice type */
				current_entry = parent;
				for (menu = parent->list; menu; menu = menu->next) {
					if (menu->sym && menu->sym->type != S_UNKNOWN) {
						menu_set_type(menu->sym->type);
						break;
					}
				}
			}
			if (parent->prompt &&
			    !expr_is_yes(parent->prompt->visible.expr)) {
				parent->visibility = expr_alloc_and (parent->visibility,
								     parent->prompt->visible.expr);
			}
			/* set the type of the remaining choice values */
			for (menu = parent->list; menu; menu = menu->next) {
				current_entry = menu;
				if (menu->sym && menu->sym->type == S_UNKNOWN)
					menu_set_type(sym->type);
			}
			parentdep = expr_alloc_symbol(sym);
		} else if (parent->prompt)
			parentdep = parent->prompt->visible.expr;
		else
			parentdep = parent->dep;

		for (menu = parent->list; menu; menu = menu->next) {
			basedep = expr_transform(menu->dep);
			basedep = expr_alloc_and(expr_copy(parentdep), basedep);
			basedep = expr_eliminate_dups(basedep);
			menu->dep = basedep;
			if (menu->sym)
				prop = menu->sym->prop;
			else
				prop = menu->prompt;
			for (; prop; prop = prop->next) {
				if (prop->menu != menu)
					continue;
				dep = expr_transform(prop->visible.expr);
				dep = expr_alloc_and(expr_copy(basedep), dep);
				dep = expr_eliminate_dups(dep);
				if (menu->sym && menu->sym->type != S_TRISTATE)
					dep = expr_trans_bool(dep);
				prop->visible.expr = dep;
				if (prop->type == P_SELECT) {
					struct symbol *es = prop_get_symbol(prop);
					es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
							expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
				}
			}
		}
		for (menu = parent->list; menu; menu = menu->next)
			menu_finalize(menu);
	} else if (sym) {
		basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
		basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
		basedep = expr_eliminate_dups(expr_transform(basedep));
		last_menu = NULL;
		for (menu = parent->next; menu; menu = menu->next) {
			dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
			if (!expr_contains_symbol(dep, sym))
				break;
			if (expr_depends_symbol(dep, sym))
				goto next;
			dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
			dep = expr_eliminate_dups(expr_transform(dep));
			dep2 = expr_copy(basedep);
			expr_eliminate_eq(&dep, &dep2);
			expr_free(dep);
			if (!expr_is_yes(dep2)) {
				expr_free(dep2);
				break;
			}
			expr_free(dep2);
		next:
			menu_finalize(menu);
			menu->parent = parent;
			last_menu = menu;
		}
		if (last_menu) {
			parent->list = parent->next;
			parent->next = last_menu->next;
			last_menu->next = NULL;
		}

		sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
	}
	for (menu = parent->list; menu; menu = menu->next) {
		if (sym && sym_is_choice(sym) &&
		    menu->sym && !sym_is_choice_value(menu->sym)) {
			current_entry = menu;
			menu->sym->flags |= SYMBOL_CHOICEVAL;
			if (!menu->prompt)
				menu_warn(menu, "choice value must have a prompt");
			for (prop = menu->sym->prop; prop; prop = prop->next) {
				if (prop->type == P_DEFAULT)
					prop_warn(prop, "defaults for choice "
						  "values not supported");
				if (prop->menu == menu)
					continue;
				if (prop->type == P_PROMPT &&
				    prop->menu->parent->sym != sym)
					prop_warn(prop, "choice value used outside its choice group");
			}
			/* Non-tristate choice values of tristate choices must
			 * depend on the choice being set to Y. The choice
			 * values' dependencies were propagated to their
			 * properties above, so the change here must be re-
			 * propagated.
			 */
			if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
				basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
				menu->dep = expr_alloc_and(basedep, menu->dep);
				for (prop = menu->sym->prop; prop; prop = prop->next) {
					if (prop->menu != menu)
						continue;
					prop->visible.expr = expr_alloc_and(expr_copy(basedep),
									    prop->visible.expr);
				}
			}
			menu_add_symbol(P_CHOICE, sym, NULL);
			prop = sym_get_choice_prop(sym);
			for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
				;
			*ep = expr_alloc_one(E_LIST, NULL);
			(*ep)->right.sym = menu->sym;
		}
		if (menu->list && (!menu->prompt || !menu->prompt->text)) {
			for (last_menu = menu->list; ; last_menu = last_menu->next) {
				last_menu->parent = parent;
				if (!last_menu->next)
					break;
			}
			last_menu->next = menu->next;
			menu->next = menu->list;
			menu->list = NULL;
		}
	}

	if (sym && !(sym->flags & SYMBOL_WARNED)) {
		if (sym->type == S_UNKNOWN)
			menu_warn(parent, "config symbol defined without type");

		if (sym_is_choice(sym) && !parent->prompt)
			menu_warn(parent, "choice must have a prompt");

		/* Check properties connected to this symbol */
		sym_check_prop(sym);
		sym->flags |= SYMBOL_WARNED;
	}

	if (sym && !sym_is_optional(sym) && parent->prompt) {
		sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
				expr_alloc_and(parent->prompt->visible.expr,
					expr_alloc_symbol(&symbol_mod)));
	}
}
예제 #7
0
파일: mconf.c 프로젝트: 16rd/rt-n56u
static void build_conf(struct menu *menu)
{
	struct symbol *sym;
	struct property *prop;
	struct menu *child;
	int type, tmp, doint = 2;
	tristate val;
	char ch;

	if (!menu_is_visible(menu))
		return;

	sym = menu->sym;
	prop = menu->prompt;
	if (!sym) {
		if (prop && menu != current_menu) {
			const char *prompt = menu_get_prompt(menu);
			switch (prop->type) {
			case P_MENU:
				child_count++;
				prompt = _(prompt);
				if (single_menu_mode) {
					item_make("%s%*c%s",
						  menu->data ? "-->" : "++>",
						  indent + 1, ' ', prompt);
				} else
					item_make("   %*c%s  --->", indent + 1, ' ', prompt);

				item_set_tag('m');
				item_set_data(menu);
				if (single_menu_mode && menu->data)
					goto conf_childs;
				return;
			case P_COMMENT:
				if (prompt) {
					child_count++;
					item_make("   %*c*** %s ***", indent + 1, ' ', _(prompt));
					item_set_tag(':');
					item_set_data(menu);
				}
				break;
			default:
				if (prompt) {
					child_count++;
					item_make("---%*c%s", indent + 1, ' ', _(prompt));
					item_set_tag(':');
					item_set_data(menu);
				}
			}
		} else
			doint = 0;
		goto conf_childs;
	}

	type = sym_get_type(sym);
	if (sym_is_choice(sym)) {
		struct symbol *def_sym = sym_get_choice_value(sym);
		struct menu *def_menu = NULL;

		child_count++;
		for (child = menu->list; child; child = child->next) {
			if (menu_is_visible(child) && child->sym == def_sym)
				def_menu = child;
		}

		val = sym_get_tristate_value(sym);
		if (sym_is_changable(sym)) {
			switch (type) {
			case S_BOOLEAN:
				item_make("[%c]", val == no ? ' ' : '*');
				break;
			case S_TRISTATE:
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				item_make("<%c>", ch);
				break;
			}
			item_set_tag('t');
			item_set_data(menu);
		} else {
			item_make("   ");
			item_set_tag(def_menu ? 't' : ':');
			item_set_data(menu);
		}

		item_add_str("%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
		if (val == yes) {
			if (def_menu) {
				item_add_str(" (%s)", _(menu_get_prompt(def_menu)));
				item_add_str("  --->");
				if (def_menu->list) {
					indent += 2;
					build_conf(def_menu);
					indent -= 2;
				}
			}
			return;
		}
	} else {
		if (menu == current_menu) {
			item_make("---%*c%s", indent + 1, ' ', _(menu_get_prompt(menu)));
			item_set_tag(':');
			item_set_data(menu);
			goto conf_childs;
		}
		child_count++;
		val = sym_get_tristate_value(sym);
		if (sym_is_choice_value(sym) && val == yes) {
			item_make("   ");
			item_set_tag(':');
			item_set_data(menu);
		} else {
			switch (type) {
			case S_BOOLEAN:
				if (sym_is_changable(sym))
					item_make("[%c]", val == no ? ' ' : '*');
				else
					item_make("-%c-", val == no ? ' ' : '*');
				item_set_tag('t');
				item_set_data(menu);
				break;
			case S_TRISTATE:
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				if (sym_is_changable(sym)) {
					if (sym->rev_dep.tri == mod)
						item_make("{%c}", ch);
					else
						item_make("<%c>", ch);
				} else
					item_make("-%c-", ch);
				item_set_tag('t');
				item_set_data(menu);
				break;
			default:
				tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
				item_make("(%s)", sym_get_string_value(sym));
				tmp = indent - tmp + 4;
				if (tmp < 0)
					tmp = 0;
				item_add_str("%*c%s%s", tmp, ' ', _(menu_get_prompt(menu)),
					     (sym_has_value(sym) || !sym_is_changable(sym)) ?
					     "" : _(" (NEW)"));
				item_set_tag('s');
				item_set_data(menu);
				goto conf_childs;
			}
		}
		item_add_str("%*c%s%s", indent + 1, ' ', _(menu_get_prompt(menu)),
			  (sym_has_value(sym) || !sym_is_changable(sym)) ?
			  "" : _(" (NEW)"));
		if (menu->prompt->type == P_MENU) {
			item_add_str("  --->");
			return;
		}
	}

conf_childs:
	indent += doint;
	for (child = menu->list; child; child = child->next)
		build_conf(child);
	indent -= doint;
}
예제 #8
0
파일: mconf.c 프로젝트: 0919061/PX4NuttX
static void build_conf(struct menu *menu)
{
	struct symbol *sym;
	struct property *prop;
	struct menu *child;
	int type, tmp, doint = 2;
	tristate val;
	char ch;

	if (!menu_is_visible(menu))
		return;

	sym = menu->sym;
	prop = menu->prompt;
	if (!sym) {
		if (prop && menu != current_menu) {
			const char *prompt = menu_get_prompt(menu);
			switch (prop->type) {
			case P_MENU:
				child_count++;
				cmake();
				cprint_tag("m%p", menu);

				if (single_menu_mode) {
					cprint_name("%s%*c%s",
						menu->data ? "-->" : "++>",
						indent + 1, ' ', prompt);
				} else {
					cprint_name("   %*c%s  --->", indent + 1, ' ', prompt);
				}

				if (single_menu_mode && menu->data)
					goto conf_childs;
				return;
			default:
				if (prompt) {
					child_count++;
					cmake();
					cprint_tag(":%p", menu);
					cprint_name("---%*c%s", indent + 1, ' ', prompt);
				}
			}
		} else
			doint = 0;
		goto conf_childs;
	}

	cmake();
	type = sym_get_type(sym);
	if (sym_is_choice(sym)) {
		struct symbol *def_sym = sym_get_choice_value(sym);
		struct menu *def_menu = NULL;

		child_count++;
		for (child = menu->list; child; child = child->next) {
			if (menu_is_visible(child) && child->sym == def_sym)
				def_menu = child;
		}

		val = sym_get_tristate_value(sym);
		if (sym_is_changable(sym)) {
			cprint_tag("t%p", menu);
			switch (type) {
			case S_BOOLEAN:
				cprint_name("[%c]", val == no ? ' ' : '*');
				break;
			case S_TRISTATE:
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				cprint_name("<%c>", ch);
				break;
			}
		} else {
			cprint_tag("%c%p", def_menu ? 't' : ':', menu);
			cprint_name("   ");
		}

		cprint_name("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
		if (val == yes) {
			if (def_menu) {
				cprint_name(" (%s)", menu_get_prompt(def_menu));
				cprint_name("  --->");
				if (def_menu->list) {
					indent += 2;
					build_conf(def_menu);
					indent -= 2;
				}
			}
			return;
		}
	} else {
		if (menu == current_menu) {
			cprint_tag(":%p", menu);
			cprint_name("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
			goto conf_childs;
		}
		child_count++;
		val = sym_get_tristate_value(sym);
		if (sym_is_choice_value(sym) && val == yes) {
			cprint_tag(":%p", menu);
			cprint_name("   ");
		} else {
			switch (type) {
			case S_BOOLEAN:
				cprint_tag("t%p", menu);
				if (sym_is_changable(sym))
					cprint_name("[%c]", val == no ? ' ' : '*');
				else
					cprint_name("---");
				break;
			case S_TRISTATE:
				cprint_tag("t%p", menu);
				switch (val) {
				case yes: ch = '*'; break;
				case mod: ch = 'M'; break;
				default:  ch = ' '; break;
				}
				if (sym_is_changable(sym))
					cprint_name("<%c>", ch);
				else
					cprint_name("---");
				break;
			default:
				cprint_tag("s%p", menu);
				tmp = cprint_name("(%s)", sym_get_string_value(sym));
				tmp = indent - tmp + 4;
				if (tmp < 0)
					tmp = 0;
				cprint_name("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
					(sym_has_value(sym) || !sym_is_changable(sym)) ?
					"" : " (NEW)");
				goto conf_childs;
			}
		}
		cprint_name("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
			(sym_has_value(sym) || !sym_is_changable(sym)) ?
			"" : " (NEW)");
		if (menu->prompt->type == P_MENU) {
			cprint_name("  --->");
			return;
		}
	}

conf_childs:
	indent += doint;
	for (child = menu->list; child; child = child->next)
		build_conf(child);
	indent -= doint;
}
예제 #9
0
파일: menu.c 프로젝트: EmDepTeam/buildroot
void menu_finalize(struct menu *parent)
{
	struct menu *menu, *last_menu;
	struct symbol *sym;
	struct property *prop;
	struct expr *parentdep, *basedep, *dep, *dep2, **ep;

	sym = parent->sym;
	if (parent->list) {
		/*
		 * This menu node has children. We (recursively) process them
		 * and propagate parent dependencies before moving on.
		 */

		if (sym && sym_is_choice(sym)) {
			if (sym->type == S_UNKNOWN) {
				/* find the first choice value to find out choice type */
				current_entry = parent;
				for (menu = parent->list; menu; menu = menu->next) {
					if (menu->sym && menu->sym->type != S_UNKNOWN) {
						menu_set_type(menu->sym->type);
						break;
					}
				}
			}
			/* set the type of the remaining choice values */
			for (menu = parent->list; menu; menu = menu->next) {
				current_entry = menu;
				if (menu->sym && menu->sym->type == S_UNKNOWN)
					menu_set_type(sym->type);
			}

			/*
			 * Use the choice itself as the parent dependency of
			 * the contained items. This turns the mode of the
			 * choice into an upper bound on the visibility of the
			 * choice value symbols.
			 */
			parentdep = expr_alloc_symbol(sym);
		} else if (parent->prompt)
			/* Menu node for 'menu' */
			parentdep = parent->prompt->visible.expr;
		else
			/* Menu node for 'if' */
			parentdep = parent->dep;

		/* For each child menu node... */
		for (menu = parent->list; menu; menu = menu->next) {
			/*
			 * Propagate parent dependencies to the child menu
			 * node, also rewriting and simplifying expressions
			 */
			basedep = rewrite_m(menu->dep);
			basedep = expr_transform(basedep);
			basedep = expr_alloc_and(expr_copy(parentdep), basedep);
			basedep = expr_eliminate_dups(basedep);
			menu->dep = basedep;

			if (menu->sym)
				/*
				 * Note: For symbols, all prompts are included
				 * too in the symbol's own property list
				 */
				prop = menu->sym->prop;
			else
				/*
				 * For non-symbol menu nodes, we just need to
				 * handle the prompt
				 */
				prop = menu->prompt;

			/* For each property... */
			for (; prop; prop = prop->next) {
				if (prop->menu != menu)
					/*
					 * Two possibilities:
					 *
					 * 1. The property lacks dependencies
					 *    and so isn't location-specific,
					 *    e.g. an 'option'
					 *
					 * 2. The property belongs to a symbol
					 *    defined in multiple locations and
					 *    is from some other location. It
					 *    will be handled there in that
					 *    case.
					 *
					 * Skip the property.
					 */
					continue;

				/*
				 * Propagate parent dependencies to the
				 * property's condition, rewriting and
				 * simplifying expressions at the same time
				 */
				dep = rewrite_m(prop->visible.expr);
				dep = expr_transform(dep);
				dep = expr_alloc_and(expr_copy(basedep), dep);
				dep = expr_eliminate_dups(dep);
				if (menu->sym && menu->sym->type != S_TRISTATE)
					dep = expr_trans_bool(dep);
				prop->visible.expr = dep;

				/*
				 * Handle selects and implies, which modify the
				 * dependencies of the selected/implied symbol
				 */
				if (prop->type == P_SELECT) {
					struct symbol *es = prop_get_symbol(prop);
					es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
							expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
				} else if (prop->type == P_IMPLY) {
					struct symbol *es = prop_get_symbol(prop);
					es->implied.expr = expr_alloc_or(es->implied.expr,
							expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
				}
			}
		}

		if (sym && sym_is_choice(sym))
			expr_free(parentdep);

		/*
		 * Recursively process children in the same fashion before
		 * moving on
		 */
		for (menu = parent->list; menu; menu = menu->next)
			menu_finalize(menu);
	} else if (sym) {
		/*
		 * Automatic submenu creation. If sym is a symbol and A, B, C,
		 * ... are consecutive items (symbols, menus, ifs, etc.) that
		 * all depend on sym, then the following menu structure is
		 * created:
		 *
		 *	sym
		 *	 +-A
		 *	 +-B
		 *	 +-C
		 *	 ...
		 *
		 * This also works recursively, giving the following structure
		 * if A is a symbol and B depends on A:
		 *
		 *	sym
		 *	 +-A
		 *	 | +-B
		 *	 +-C
		 *	 ...
		 */

		basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
		basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
		basedep = expr_eliminate_dups(expr_transform(basedep));

		/* Examine consecutive elements after sym */
		last_menu = NULL;
		for (menu = parent->next; menu; menu = menu->next) {
			dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
			if (!expr_contains_symbol(dep, sym))
				/* No dependency, quit */
				break;
			if (expr_depends_symbol(dep, sym))
				/* Absolute dependency, put in submenu */
				goto next;

			/*
			 * Also consider it a dependency on sym if our
			 * dependencies contain sym and are a "superset" of
			 * sym's dependencies, e.g. '(sym || Q) && R' when sym
			 * depends on R.
			 *
			 * Note that 'R' might be from an enclosing menu or if,
			 * making this a more common case than it might seem.
			 */
			dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
			dep = expr_eliminate_dups(expr_transform(dep));
			dep2 = expr_copy(basedep);
			expr_eliminate_eq(&dep, &dep2);
			expr_free(dep);
			if (!expr_is_yes(dep2)) {
				/* Not superset, quit */
				expr_free(dep2);
				break;
			}
			/* Superset, put in submenu */
			expr_free(dep2);
		next:
			menu_finalize(menu);
			menu->parent = parent;
			last_menu = menu;
		}
		expr_free(basedep);
		if (last_menu) {
			parent->list = parent->next;
			parent->next = last_menu->next;
			last_menu->next = NULL;
		}

		sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
	}
	for (menu = parent->list; menu; menu = menu->next) {
		if (sym && sym_is_choice(sym) &&
		    menu->sym && !sym_is_choice_value(menu->sym)) {
			current_entry = menu;
			menu->sym->flags |= SYMBOL_CHOICEVAL;
			if (!menu->prompt)
				menu_warn(menu, "choice value must have a prompt");
			for (prop = menu->sym->prop; prop; prop = prop->next) {
				if (prop->type == P_DEFAULT)
					prop_warn(prop, "defaults for choice "
						  "values not supported");
				if (prop->menu == menu)
					continue;
				if (prop->type == P_PROMPT &&
				    prop->menu->parent->sym != sym)
					prop_warn(prop, "choice value used outside its choice group");
			}
			/* Non-tristate choice values of tristate choices must
			 * depend on the choice being set to Y. The choice
			 * values' dependencies were propagated to their
			 * properties above, so the change here must be re-
			 * propagated.
			 */
			if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
				basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
				menu->dep = expr_alloc_and(basedep, menu->dep);
				for (prop = menu->sym->prop; prop; prop = prop->next) {
					if (prop->menu != menu)
						continue;
					prop->visible.expr = expr_alloc_and(expr_copy(basedep),
									    prop->visible.expr);
				}
			}
			menu_add_symbol(P_CHOICE, sym, NULL);
			prop = sym_get_choice_prop(sym);
			for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
				;
			*ep = expr_alloc_one(E_LIST, NULL);
			(*ep)->right.sym = menu->sym;
		}

		/*
		 * This code serves two purposes:
		 *
		 * (1) Flattening 'if' blocks, which do not specify a submenu
		 *     and only add dependencies.
		 *
		 *     (Automatic submenu creation might still create a submenu
		 *     from an 'if' before this code runs.)
		 *
		 * (2) "Undoing" any automatic submenus created earlier below
		 *     promptless symbols.
		 *
		 * Before:
		 *
		 *	A
		 *	if ... (or promptless symbol)
		 *	 +-B
		 *	 +-C
		 *	D
		 *
		 * After:
		 *
		 *	A
		 *	if ... (or promptless symbol)
		 *	B
		 *	C
		 *	D
		 */
		if (menu->list && (!menu->prompt || !menu->prompt->text)) {
			for (last_menu = menu->list; ; last_menu = last_menu->next) {
				last_menu->parent = parent;
				if (!last_menu->next)
					break;
			}
			last_menu->next = menu->next;
			menu->next = menu->list;
			menu->list = NULL;
		}
	}

	if (sym && !(sym->flags & SYMBOL_WARNED)) {
		if (sym->type == S_UNKNOWN)
			menu_warn(parent, "config symbol defined without type");

		if (sym_is_choice(sym) && !parent->prompt)
			menu_warn(parent, "choice must have a prompt");

		/* Check properties connected to this symbol */
		sym_check_prop(sym);
		sym->flags |= SYMBOL_WARNED;
	}

	/*
	 * For non-optional choices, add a reverse dependency (corresponding to
	 * a select) of '<visibility> && m'. This prevents the user from
	 * setting the choice mode to 'n' when the choice is visible.
	 *
	 * This would also work for non-choice symbols, but only non-optional
	 * choices clear SYMBOL_OPTIONAL as of writing. Choices are implemented
	 * as a type of symbol.
	 */
	if (sym && !sym_is_optional(sym) && parent->prompt) {
		sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
				expr_alloc_and(parent->prompt->visible.expr,
					expr_alloc_symbol(&symbol_mod)));
	}
}