There's also a version in oldlibs (which is the one you're looking for). (this is potato)
$ dpkg -s zlib1 Package: zlib1 Status: install ok installed Priority: optional Section: oldlibs Installed-Size: 81 Maintainer: Joel Klecker <[EMAIL PROTECTED]> Source: zlib Version: 1:1.1.3-5 Depends: libc5 (>= 5.4.0-0) Description: compression library - runtime (for libc5) zlib is a library implementing the deflate compression method found in gzip and pkzip. This package includes the shared library. $ dpkg -s zlib1g Package: zlib1g Status: install ok installed Priority: standard Section: libs Installed-Size: 87 Maintainer: Joel Klecker <[EMAIL PROTECTED]> Source: zlib Version: 1:1.1.3-5 Provides: libz1 Depends: libc6 (>= 2.1) Conflicts: zlib1 (<= 1:1.0.4-7) Description: compression library - runtime zlib is a library implementing the deflate compression method found in gzip and pkzip. This package includes the shared library. -- +----------------------------------------------------+ | Eric G. Miller egm2@jps.net | | GnuPG public key: http://www.jps.net/egm2/gpg.asc | +----------------------------------------------------+