386bsd:For a 386BSD system
aix32:POWER and POWER2 running AIX 3.2.5.0
aix41:PowerPC running AIX 4.1.2.0
aux3:a Mac running A/UX version 3.x
bsd386:For a BSD/386 system
bsd43:any generic 4.3BSD system
bsd44:For a 4.4BSD system
bsd44a:For a pre-release 4.4BSD system
bsdos2:For a BSD/OS 2.X system (based on the 4.4BSD Lite system)
convex:any C2XX running Convex OS 11.X.
dcosx:For Pyramid DC/OSX
decosf1:DEC Alpha AXP running OSF/1 or Digital Unix 4.0.
dgux:for DG AViiON with DG/UX 5.4+
dynix:any Sequent Running Dynix 3.0.x
dynix32:any Sequent Running Dynix 3.2.x
freebsd20:For a FreeBSD-2.0 (4.4BSD) system
ftx:For FTX based System V Release 4
hpux10:any hp9000 running hpux version 10.x
hpux7:any hp9000 running hpux version 7 or earlier
hpux8:any hp9000 running hpux version 8 (may work with 9)
hpux9:any hp9000 running hpux version 9
irix5:any uniprocessor, 32 bit SGI machine running IRIX 5.3
irix62:any uniprocessor, SGI machine running IRIX 6.2
linux:Linux 1.2.x, 1.3.x, using the /proc filesystem
mtxinu:any VAX Running Mt. Xinu MORE/bsd
ncr3000:For NCR 3000 series systems Release 2.00.02 and above -
netbsd08:For a NetBSD system
netbsd10:For a NetBSD-1.0 (4.4BSD) system
next32:any m68k or intel NEXTSTEP v3.x system
next40:any hppa or sparc NEXTSTEP v3.3 system
osmp41a:any Solbourne running OS/MP 4.1A
sco:SCO UNIX
sunos4:any Sun running SunOS version 4.x
sunos4mp:any multi-processor Sun running SunOS versions 4.1.2 or later
sunos5:Any Sun running SunOS 5.x (Solaris 2.x)
svr4:Intel based System V Release 4
svr42:For Intel based System V Release 4.2 (DESTINY)
ultrix4:any DEC running ULTRIX V4.2 or later
umax:Encore Multimax running any release of UMAX 4.3
utek:Tektronix 43xx running UTek 4.1