Z:gnu-www-ja-gpl-2.0-faq--f6726c-So the only way you have a say/en

So the only way you have a say in the use of the output is if substantial parts of the output are copied (more or less) from text in your program. For instance, part of the output of Bison (see above) would be covered by the GNU GPL, if we had not made an exception in this specific case.