Screw IO::Zlib. Use PerlIO::gzip instead.

You're using 5.8.5, so that should work for you just fine. Of course, that advice won't help if you really want to be compatible with earlier perls or if you changed your defaults... It's a nice clean solution for most 5.8.0+ installations though.

-sauoq
"My two cents aren't worth a dime.";