附录 E. GNU General Public License(此许可证只有英文原文具有法律效力)

目录

E.1. Preamble
E.2. GNU GENERAL PUBLIC LICENSE
E.3. How to Apply These Terms to Your New Programs

Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc. — 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.