perl programs hang if run with daemontools

Hello list. I've using daemontools since two years ago, it's great, I
can't think of a daemon anymore without thinking in daemontools. Thanks
a lot DJB.

My problem is when running perl programs under daemontools. If my perl
script is something like this, it works fine wit daemonstools and 
multilog logs everything right:

#!/usr/bin/perl -w -T
while (1) {
   print "test\n";
}

But any real script hangs. For example, if I add a single "sleep", I 
stop receiving any log. This hangs: (or at least, it never produce any 
output; the "sleep" is just a little example that fails)

#!/usr/bin/perl -w -T
while (1) {
   print "test\n";
   sleep 1;
}

I am runnign spamassassin with daemonstools, and it turns out that the 
spamd daemon is a perl script itself. I have no problems running 
spamassassin. At the beggining of the spamd script they have some 
special things, I tried using them, but nothing.

I don't know if there's something special I should consider for Perl, if 
I want to use daemontools with it. And I have googled for serveral days, 
but nothing yet.

I apologize for posting this here, if it turns that this is not related 
at all to daemontools (or multilog), and it is a Perl issue instead. 
But maybe you have seen this behavior before, and can give me a bit of help.

Thanks a lot!


-- 
Oscar Retana