}
my %compiler = get_compiler_info($config{CXX});
+$config{HAS_ARC4RANDOM_BUF} = run_test 'arc4random_buf()', test_file($config{CXX}, 'arc4random_buf.cpp');
$config{HAS_CLOCK_GETTIME} = run_test 'clock_gettime()', test_file($config{CXX}, 'clock_gettime.cpp', $^O eq 'darwin' ? undef : '-lrt');
$config{HAS_EVENTFD} = run_test 'eventfd()', test_file($config{CXX}, 'eventfd.cpp');