GsTL is released under the terms of a "BSD-like" license (open-source license).
It is still in its development phase, so if you find a bug, please report it to firstname.lastname@example.org (do not forget to include an informative description of the bug, pieces of code illustrating the bug, ior any other useful pieces of information)
Download the current release (as of 06/06/06): GsTL-1.2.1. This version was tested with gcc-4
Older version: GsTL-1.2