1993            1994            1995            1996            1997            1998            1999            2000            2001

LINUX  (Slackware v2,3,4; RedHat 4.x, 5.x, 6.x, 7.x)

SUN (SunOS v4.1.4.1 & Solaris v5.5.1, v7)                                                                         v7

DEC/alpha OSF/1

SGI (IRIX 6.5)

BSD                                                                                                                                   BSD