S-Lang Software License Information

Programs using version 1.X of the S-Lang library must be distributed either under the terms of the GNU General Public License, or under the terms of the Artistic License. However, version 2.X of the S-Lang library does not support the Artistic License. Version 2 must be distributed solely under the terms of the GNU General Public License.

For a general discussion of software licensing and compatibility issues, see http://www.gnu.org/philosophy/license-list.html.