"Steve Neuner of SGI said, "SGI has been one of the most ardent
commercial supporters of free and open source software, so it was
important to us that we continue to support the free software
development community by releasing our earlier OpenGL-related
contributions under this new license. This license ensures that all
existing user communities will benefit, and their work can proceed
unimpeded. Both Mesa and the X.org Project can continue to utilize
this code in free software distributions of GNU/Linux. Now more
than ever, software previously released by SGI under earlier GLX
and SGI Free Software License B is free."