libcompress-zlib-perl 2.020-0ubuntu1 (i386 binary) in ubuntu lucid

 Compress::Zlib is a Perl external module which provides an interface to
 the info-zip zlib compression library. zlib is a general purpose
 compression library.
 .
 Some of the features provided by Compress::Zlib include:
 .
    * in-memory compression and decompression
    * read and write gzip (.gz) files directly.
 .
 See also: libio-compress-zlib-perl
 .
 This is a transitional package to support upgrade to libio-compress-perl and
 may be safely removed after installation.