The package is reported to be useable on
GNU/Linux (Debian GNU/Linux ("potato" and "woody"), Red Hat Linux (7.0, 7.1, 7.2), Mandrake Linux (7.0 Air, 7.2 Odyssey))
BSD (FreeBSD (4.1-STABLE, 4.5-PRERELEASE, 4.4-STABLE), OpenBSD (2.7, 2.8 and 2.9), Mac OS X v 10.1)
Solaris (SunOS 5.6 and 5.7)
HP-UX (11.11)
And yes, it even runs on GNU/Hurd!