Bald advertising:
OpenGL for OS/2 Warp is in Beta, has been a long time. To sign up
for Beta, see http://www.austin.ibm.com/software/OpenGL, scroll down,
and click on OS/2 in second (?) paragraph.
Public Service Announcement:
Mesa is an OpenGL-like thing for Linux. It runs a number of the
"standard" OpenGL demos & samples. Technically, it has problems,
and does not begin to approach quality & performance found in
product code. But it does run under Linux ...!
-- linas