BEGIN { unless (exists $SIG{USR1}) { print <condvar; my $error = AnyEvent->timer (after => 5, cb => sub { print <signal (signal => 'INT', cb => sub { print "ok 3\n"; $cv->broadcast; }); print "ok 2\n"; kill 'INT', $$; $cv->wait; undef $error; print "ok 4\n"; undef $sw; print "ok 5\n";