+ goto out;
+
+ expr_list_for_each_sym(prop->expr, e, sym) {
+ sym2 = sym_check_sym_deps(sym);
+ if (sym2) {
+ fprintf(stderr, " -> %s", sym->name);
+ break;
+ }
+ }
+out:
+ expr_list_for_each_sym(prop->expr, e, sym)
+ sym->flags &= ~SYMBOL_CHECK;
+
+ if (sym2 && sym_is_choice_value(sym2) &&
+ prop_get_symbol(sym_get_choice_prop(sym2)) == choice)
+ sym2 = choice;
+
+ return sym2;
+}
+
+struct symbol *sym_check_deps(struct symbol *sym)
+{
+ struct symbol *sym2;
+ struct property *prop;
+
+ if (sym->flags & SYMBOL_CHECK) {
+ fprintf(stderr, "%s:%d:error: found recursive dependency: %s",
+ sym->prop->file->name, sym->prop->lineno,
+ sym->name ? sym->name : "<choice>");
+ return sym;
+ }
+ if (sym->flags & SYMBOL_CHECKED)
+ return NULL;
+
+ if (sym_is_choice_value(sym)) {
+ /* for choice groups start the check with main choice symbol */
+ prop = sym_get_choice_prop(sym);
+ sym2 = sym_check_deps(prop_get_symbol(prop));
+ } else if (sym_is_choice(sym)) {
+ sym2 = sym_check_choice_deps(sym);
+ } else {
+ sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
+ sym2 = sym_check_sym_deps(sym);
+ sym->flags &= ~SYMBOL_CHECK;
+ }
+
+ if (sym2) {
+ fprintf(stderr, " -> %s", sym->name ? sym->name : "<choice>");
+ if (sym2 == sym) {
+ fprintf(stderr, "\n");
+ zconfnerrs++;
+ sym2 = NULL;
+ }
+ }
+