HP-UX 11.22
HP-UX 11.20
HP-UX 11.11
HP-UX 11.00
HP-UX 10.20
HP-UX 10.10
HP-UX 10.01
SunOS 5.10
SunOS 5.9
SunOS 5.8
SunOS 5.7
SunOS 5.6
SunOS 5.5.1
SunOS 4.1.3
CentOS Linux/i386 3.9
CentOS Linux/i386 4.8
CentOS Linux/i386 5.4
CentOS Linux/i386 5.5
SuSE Linux/i386 4.3
SuSE Linux/i386 5.0
SuSE Linux/i386 5.2
SuSE Linux/i386 5.3
SuSE Linux/i386 6.0
SuSE Linux/i386 6.1
SuSE Linux/i386 6.3
SuSE Linux/i386 6.4
SuSE Linux/i386 7.0
SuSE Linux/i386 7.1
SuSE Linux/i386 7.2
SuSE Linux/i386 7.3
SuSE Linux/i386 8.0
SuSE Linux/i386 8.1
SuSE Linux/i386 8.2
SuSE Linux/i386 9.2
SuSE Linux/i386 9.3
SuSE Linux/i386 10.0
SuSE Linux/i386 10.1
SuSE Linux/i386 10.2
SuSE Linux/i386 10.3
SuSE Linux/i386 11.0
SuSE Linux/i386 11.1
SuSE Linux/i386 11.2
SuSE Linux/i386 11.3
FreeBSD 9-current
FreeBSD 9.0-RELEASE
FreeBSD 8.3-stable
FreeBSD 8.3-RELEASE
FreeBSD 8.2-stable
FreeBSD 8.2-RELEASE
FreeBSD 8.1-RELEASE
FreeBSD 8.0-RELEASE
FreeBSD 7.4-stable
FreeBSD 7.4-RELEASE
FreeBSD 7.3-RELEASE
FreeBSD 7.2-RELEASE
FreeBSD 7.1-RELEASE
FreeBSD 7.0-RELEASE
FreeBSD 6.4-stable
FreeBSD 6.4-RELEASE
FreeBSD 6.3-RELEASE
FreeBSD 6.2-RELEASE
FreeBSD 6.1-RELEASE
FreeBSD 6.0-RELEASE
FreeBSD 5.5-RELEASE
FreeBSD 5.4-RELEASE
FreeBSD 5.3-RELEASE
FreeBSD 5.2.1-RELEASE
FreeBSD 5.2-RELEASE
FreeBSD 5.1-RELEASE
FreeBSD 5.0-RELEASE
FreeBSD 4.11-RELEASE
FreeBSD 4.10-RELEASE
FreeBSD 4.9-RELEASE
FreeBSD 4.8-RELEASE
FreeBSD 4.7-RELEASE
FreeBSD 4.6.2-RELEASE
FreeBSD 4.6-RELEASE
FreeBSD 4.5-RELEASE
FreeBSD 4.4-RELEASE
FreeBSD 4.3-RELEASE
FreeBSD 4.2-RELEASE
FreeBSD 4.1.1-RELEASE
FreeBSD 4.1-RELEASE
FreeBSD 4.0-RELEASE
FreeBSD 3.5.1-RELEASE
FreeBSD 3.4-RELEASE
FreeBSD 3.3-RELEASE
FreeBSD 3.2-RELEASE
FreeBSD 3.1-RELEASE
FreeBSD 3.0-RELEASE
FreeBSD 2.2.5-RELEASE
FreeBSD 2.2.6-RELEASE
FreeBSD 2.2.7-RELEASE
FreeBSD 2.2.8-RELEASE
FreeBSD 2.2.2-RELEASE
FreeBSD 2.2.1-RELEASE
FreeBSD 2.1.7.1-RELEASE
FreeBSD 2.1.6.1-RELEASE
FreeBSD 2.1.5-RELEASE
FreeBSD 2.1.0-RELEASE
FreeBSD 2.0.5-RELEASE
FreeBSD 2.0-RELEASE
FreeBSD 1.1.5.1-RELEASE
FreeBSD 1.1-RELEASE
FreeBSD 1.0-RELEASE
OpenBSD 2.0
OpenBSD 2.1
OpenBSD 2.2
OpenBSD 2.3
OpenBSD 2.4
OpenBSD 2.5
OpenBSD 2.6
OpenBSD 2.7
OpenBSD 2.8
OpenBSD 2.9
OpenBSD 3.0
OpenBSD 3.1
OpenBSD 3.2
OpenBSD 3.3
OpenBSD 3.4
OpenBSD 3.5
OpenBSD 3.6
OpenBSD 3.7
OpenBSD 3.8
OpenBSD 3.9
OpenBSD 4.0
OpenBSD 4.1
OpenBSD 4.2
OpenBSD 4.3
OpenBSD 4.4
OpenBSD 4.5
OpenBSD 4.6
OpenBSD 4.7
OpenBSD 4.8
OpenBSD 4.9
OpenBSD 5.0
NetBSD 1.0
NetBSD 1.1
NetBSD 1.2
NetBSD 1.2.1
NetBSD 1.3
NetBSD 1.3.1
NetBSD 1.3.2
NetBSD 1.3.3
NetBSD 1.4
NetBSD 1.4.1
NetBSD 1.4.2
NetBSD 1.4.3
NetBSD 1.5
NetBSD 1.5.1
NetBSD 1.5.2
NetBSD 1.5.3
NetBSD 1.6
NetBSD 1.6.1
NetBSD 1.6.2
NetBSD 2.0
NetBSD 2.0.2
NetBSD 2.1
NetBSD 3.0
NetBSD 3.1
NetBSD 4.0
NetBSD 4.0.1
NetBSD 5.0
NetBSD 5.1
2.8 BSD
2.9.1 BSD
2.10 BSD
2.11 BSD
386BSD 0.0
386BSD 0.1
4.3BSD Reno
4.3BSD NET/2
4.4BSD Lite2
Linux Slackware 3.1
Red Hat Linux/i386 4.2
Red Hat Linux/i386 5.0
Red Hat Linux/i386 5.2
Red Hat Linux/i386 6.1
Red Hat Linux/i386 6.2
Red Hat Linux/i386 7.0
Red Hat Linux/i386 7.1
Red Hat Linux/i386 7.2
Red Hat Linux/i386 7.3
Red Hat Linux/i386 8.0
Red Hat Linux/i386 9
CentOS Linux/i386 3.9
CentOS Linux/i386 4.8
CentOS Linux/i386 5.4
CentOS Linux/i386 5.5
SuSE Linux/i386 4.3
SuSE Linux/i386 5.0
SuSE Linux/i386 5.2
SuSE Linux/i386 5.3
SuSE Linux/i386 6.0
SuSE Linux/i386 6.1
SuSE Linux/i386 6.3
SuSE Linux/i386 6.4
SuSE Linux/i386 7.0
SuSE Linux/i386 7.1
SuSE Linux/i386 7.2
SuSE Linux/i386 7.3
SuSE Linux/i386 8.0
SuSE Linux/i386 8.1
SuSE Linux/i386 8.2
SuSE Linux/i386 9.2
SuSE Linux/i386 9.3
SuSE Linux/i386 10.0
SuSE Linux/i386 10.1
SuSE Linux/i386 10.2
SuSE Linux/i386 10.3
SuSE Linux/i386 11.0
SuSE Linux/i386 11.1
SuSE Linux/i386 11.2
SuSE Linux/i386 11.3
SuSE Linux/i386 ES 10 SP1
XFree86 2.1
XFree86 3.3
XFree86 3.3.6
XFree86 4.0
XFree86 4.0.1
XFree86 4.0.2
XFree86 4.1.0
XFree86 4.2.0
XFree86 4.2.99.3
XFree86 4.3.0
XFree86 4.4.0
XFree86 4.5.0
XFree86 4.6.0
XFree86 4.7.0
X11R6.7.0
X11R6.8.2
X11R6.9.0
X11R7.2
X11R7.3.2
X11R7.4
ULTRIX 4.2
OSF1 V4.0/alpha
OSF1 V5.1/alpha
Plan 9
Minix 2.0
Unix Seventh Edition
Darwin 1.3.1/x86
Darwin 1.4.1/x86
Darwin 6.0.2/x86
Darwin 7.0.1
Darwin 8.0.1/ppc
OpenDarwin 20030208pre4/ppc
OpenDarwin 6.6.1/x86
OpenDarwin 6.6.2/x86
OpenDarwin 7.2.1