zconf_error
| stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
| stmt_list error T_EOL { zconf_error("invalid statement"); }
| stmt_list_in_choice error T_EOL { zconf_error("invalid statement"); }
zconf_error("menuconfig statement without prompt");
zconf_error("symbol '%s' redefines option 'modules' already defined by symbol '%s'",
static void zconf_error(const char *err, ...);
zconf_error("'%s' defined with more than one help text",
zconf_error("'%s' defined with blank help text",
zconf_error("unexpected '%s' within %s block",
zconf_error("'%s' in different file than '%s'",