opts_set(opts.warn, WARN_UNINITIALIZED_CONSTANT, true);
opts_set(opts.warn, WARN_DEPRECATED, true);
opts_set(opts.warn, WARN_PARENTHESIS, true);
opts_set(opts.warn, WARN_UNINITIALIZED_CONSTANT, true);
opts_set(opts.warn, WARN_DEPRECATED, true);
opts_set(opts.warn, WARN_PARENTHESIS, true);