Hi, a new version of libevent bundles a file ax_prog_doxygen.m4 [1]. The license text says the following: # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. Not being a native speaker, I'm not sure how exactly to interpret that sentence, but it sounds to me like there could be a restriction on commercial use. (What got me additionally confused is that the file is hosted on gnu.org.) Is this a Free software license or not? Thank you very much. [1] http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_prog_doxygen.m4 Best regards Ondřej Lysoněk _______________________________________________ legal mailing list -- legal@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to legal-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/legal@xxxxxxxxxxxxxxxxxxxxxxx