‘show c’; they could even be mouse-clicks or menu items–whatever suits your program.
You should also get your employer (if you work as a programmer) or your school, if any, to sign a “copy-
right disclaimer” for the program, if necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program ‘Gnomovision’ (which makes
passes at compilers) written by James Hacker.
signature of Ty Coon, 1 April 1989 Ty Coon, President of Vice
This General Public License does not permit incorporating your program into proprietary programs. If
your program is a subroutine library, you may consider it more useful to permit linking proprietary appli-
cations with the library. If this is what you want to do, use the GNU Lesser General Public License instead
of this License.